diff options
Diffstat (limited to 'src/opengl')
52 files changed, 6950 insertions, 1681 deletions
diff --git a/src/opengl/gl2paintengineex/qgl2pexvertexarray.cpp b/src/opengl/gl2paintengineex/qgl2pexvertexarray.cpp index 516b847..559a6fd 100644 --- a/src/opengl/gl2paintengineex/qgl2pexvertexarray.cpp +++ b/src/opengl/gl2paintengineex/qgl2pexvertexarray.cpp @@ -61,12 +61,6 @@ QGLRect QGL2PEXVertexArray::boundingRect() const return QGLRect(minX, minY, maxX, maxY); } -void QGL2PEXVertexArray::addRect(const QRectF &rect) -{ - vertexArray << rect.topLeft() << rect.topRight() << rect.bottomRight() - << rect.bottomRight() << rect.bottomLeft() << rect.topLeft(); -} - void QGL2PEXVertexArray::addClosingLine(int index) { if (QPointF(vertexArray.at(index)) != QPointF(vertexArray.last())) @@ -145,7 +139,7 @@ void QGL2PEXVertexArray::addPath(const QVectorPath &path, GLfloat curveInverseSc // threshold based on same algorithm as in qtriangulatingstroker.cpp int threshold = qMin<float>(64, qMax(bounds.width(), bounds.height()) * 3.14f / (curveInverseScale * 6)); if (threshold < 3) threshold = 3; - qreal one_over_threshold_minus_1 = 1.f / (threshold - 1); + qreal one_over_threshold_minus_1 = qreal(1) / (threshold - 1); for (int t=0; t<threshold; ++t) { QPointF pt = b.pointAt(t * one_over_threshold_minus_1); lineToArray(pt.x(), pt.y()); diff --git a/src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h b/src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h index e0497b1..46029b9 100644 --- a/src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h +++ b/src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h @@ -100,10 +100,45 @@ class QGL2PEXVertexArray { public: QGL2PEXVertexArray() : + vertexArray(0), vertexArrayStops(0), maxX(-2e10), maxY(-2e10), minX(2e10), minY(2e10), - boundingRectDirty(true) {} + boundingRectDirty(true) + { } + + inline void addRect(const QRectF &rect) + { + qreal top = rect.top(); + qreal left = rect.left(); + qreal bottom = rect.bottom(); + qreal right = rect.right(); + + vertexArray << QGLPoint(left, top) + << QGLPoint(right, top) + << QGLPoint(right, bottom) + << QGLPoint(right, bottom) + << QGLPoint(left, bottom) + << QGLPoint(left, top); + } + + inline void addQuad(const QRectF &rect) + { + qreal top = rect.top(); + qreal left = rect.left(); + qreal bottom = rect.bottom(); + qreal right = rect.right(); + + vertexArray << QGLPoint(left, top) + << QGLPoint(right, top) + << QGLPoint(left, bottom) + << QGLPoint(right, bottom); + + } + + inline void addVertex(const GLfloat x, const GLfloat y) + { + vertexArray.add(QGLPoint(x, y)); + } - void addRect(const QRectF &rect); void addPath(const QVectorPath &path, GLfloat curveInverseScale, bool outline = true); void clear(); diff --git a/src/opengl/gl2paintengineex/qglengineshadermanager.cpp b/src/opengl/gl2paintengineex/qglengineshadermanager.cpp index 0c98e3b..40b3641 100644 --- a/src/opengl/gl2paintengineex/qglengineshadermanager.cpp +++ b/src/opengl/gl2paintengineex/qglengineshadermanager.cpp @@ -96,6 +96,7 @@ QGLEngineSharedShaders::QGLEngineSharedShaders(const QGLContext* context) code[UntransformedPositionVertexShader] = qglslUntransformedPositionVertexShader; code[PositionOnlyVertexShader] = qglslPositionOnlyVertexShader; + code[ComplexGeometryPositionOnlyVertexShader] = qglslComplexGeometryPositionOnlyVertexShader; code[PositionWithPatternBrushVertexShader] = qglslPositionWithPatternBrushVertexShader; code[PositionWithLinearGradientBrushVertexShader] = qglslPositionWithLinearGradientBrushVertexShader; code[PositionWithConicalGradientBrushVertexShader] = qglslPositionWithConicalGradientBrushVertexShader; @@ -329,7 +330,7 @@ QGLEngineShaderProg *QGLEngineSharedShaders::findProgramInCache(const QGLEngineS newProg->program->bindAttributeLocation("textureCoordArray", QT_TEXTURE_COORDS_ATTR); if (newProg->useOpacityAttribute) newProg->program->bindAttributeLocation("opacityArray", QT_OPACITY_ATTR); - if (newProg->usePmvMatrix) { + if (newProg->usePmvMatrixAttribute) { newProg->program->bindAttributeLocation("pmvMatrix1", QT_PMV_MATRIX_1_ATTR); newProg->program->bindAttributeLocation("pmvMatrix2", QT_PMV_MATRIX_2_ATTR); newProg->program->bindAttributeLocation("pmvMatrix3", QT_PMV_MATRIX_3_ATTR); @@ -403,6 +404,7 @@ void QGLEngineSharedShaders::cleanupCustomStage(QGLCustomShaderStage* stage) QGLEngineShaderManager::QGLEngineShaderManager(QGLContext* context) : ctx(context), shaderProgNeedsChanging(true), + complexGeometry(false), srcPixelType(Qt::NoBrush), opacityMode(NoOpacity), maskType(NoMask), @@ -444,7 +446,8 @@ GLuint QGLEngineShaderManager::getUniformLocation(Uniform id) "inverse_2_fmp2_m_radius2", "invertedTextureSize", "brushTransform", - "brushTexture" + "brushTexture", + "matrix" }; if (uniformLocations.at(id) == GLuint(-1)) @@ -752,7 +755,16 @@ bool QGLEngineShaderManager::useCorrectShaderProg() } requiredProgram.useTextureCoords = texCoords; requiredProgram.useOpacityAttribute = (opacityMode == AttributeOpacity); - requiredProgram.usePmvMatrix = true; + if (complexGeometry && srcPixelType == Qt::SolidPattern) { + requiredProgram.positionVertexShader = QGLEngineSharedShaders::ComplexGeometryPositionOnlyVertexShader; + requiredProgram.usePmvMatrixAttribute = false; + } else { + requiredProgram.usePmvMatrixAttribute = true; + + // Force complexGeometry off, since we currently don't support that mode for + // non-solid brushes + complexGeometry = false; + } // At this point, requiredProgram is fully populated so try to find the program in the cache currentShaderProg = sharedShaders->findProgramInCache(requiredProgram); diff --git a/src/opengl/gl2paintengineex/qglengineshadermanager_p.h b/src/opengl/gl2paintengineex/qglengineshadermanager_p.h index 3ab4ebe..06b96ae 100644 --- a/src/opengl/gl2paintengineex/qglengineshadermanager_p.h +++ b/src/opengl/gl2paintengineex/qglengineshadermanager_p.h @@ -272,6 +272,7 @@ public: // UntransformedPositionVertexShader must be first in the list: UntransformedPositionVertexShader, PositionOnlyVertexShader, + ComplexGeometryPositionOnlyVertexShader, PositionWithPatternBrushVertexShader, PositionWithLinearGradientBrushVertexShader, PositionWithConicalGradientBrushVertexShader, @@ -400,7 +401,7 @@ public: bool useTextureCoords; bool useOpacityAttribute; - bool usePmvMatrix; + bool usePmvMatrixAttribute; bool operator==(const QGLEngineShaderProg& other) { // We don't care about the program @@ -446,6 +447,7 @@ public: InvertedTextureSize, BrushTransform, BrushTexture, + Matrix, NumUniforms }; @@ -474,6 +476,15 @@ public: void useSimpleProgram(); void useBlitProgram(); + void setHasComplexGeometry(bool hasComplexGeometry) + { + complexGeometry = hasComplexGeometry; + shaderProgNeedsChanging = true; + } + bool hasComplexGeometry() const + { + return complexGeometry; + } QGLShaderProgram* currentProgram(); // Returns pointer to the shader the manager has chosen QGLShaderProgram* simpleProgram(); // Used to draw into e.g. stencil buffers @@ -487,6 +498,7 @@ private slots: private: QGLContext* ctx; bool shaderProgNeedsChanging; + bool complexGeometry; // Current state variables which influence the choice of shader: QTransform brushTransform; diff --git a/src/opengl/gl2paintengineex/qglengineshadersource_p.h b/src/opengl/gl2paintengineex/qglengineshadersource_p.h index c963265..a7ece0f 100644 --- a/src/opengl/gl2paintengineex/qglengineshadersource_p.h +++ b/src/opengl/gl2paintengineex/qglengineshadersource_p.h @@ -107,6 +107,14 @@ static const char* const qglslPositionOnlyVertexShader = "\n\ gl_Position = vec4(transformedPos.xy, 0.0, transformedPos.z); \n\ }\n"; +static const char* const qglslComplexGeometryPositionOnlyVertexShader = "\n\ + uniform highp mat3 matrix; \n\ + attribute highp vec2 vertexCoordsArray; \n\ + void setPosition(void) \n\ + { \n\ + gl_Position = vec4(matrix * vec3(vertexCoordsArray, 1), 1);\n\ + } \n"; + static const char* const qglslUntransformedPositionVertexShader = "\n\ attribute highp vec4 vertexCoordsArray; \n\ void setPosition(void) \n\ @@ -274,7 +282,7 @@ static const char* const qglslPositionWithTextureBrushVertexShader = "\n\ uniform mediump vec2 halfViewportSize; \n\ uniform highp vec2 invertedTextureSize; \n\ uniform highp mat3 brushTransform; \n\ - varying highp vec2 textureCoords; \n\ + varying highp vec2 brushTextureCoords; \n\ void setPosition(void) \n\ { \n\ highp mat3 pmvMatrix = mat3(pmvMatrix1, pmvMatrix2, pmvMatrix3); \n\ @@ -284,7 +292,7 @@ static const char* const qglslPositionWithTextureBrushVertexShader = "\n\ mediump vec3 hTexCoords = brushTransform * vec3(viewportCoords, 1); \n\ mediump float invertedHTexCoordsZ = 1.0 / hTexCoords.z; \n\ gl_Position = vec4(gl_Position.xy * invertedHTexCoordsZ, 0.0, invertedHTexCoordsZ); \n\ - textureCoords.xy = (hTexCoords.xy * invertedTextureSize) * gl_Position.w; \n\ + brushTextureCoords.xy = (hTexCoords.xy * invertedTextureSize) * gl_Position.w; \n\ }\n"; static const char* const qglslAffinePositionWithTextureBrushVertexShader @@ -295,28 +303,28 @@ static const char* const qglslAffinePositionWithTextureBrushVertexShader // we emulate GL_REPEAT by only taking the fractional part of the texture coords. // TODO: Special case POT textures which don't need this emulation static const char* const qglslTextureBrushSrcFragmentShader = "\n\ - varying highp vec2 textureCoords; \n\ + varying highp vec2 brushTextureCoords; \n\ uniform lowp sampler2D brushTexture; \n\ lowp vec4 srcPixel() { \n\ - return texture2D(brushTexture, fract(textureCoords)); \n\ + return texture2D(brushTexture, fract(brushTextureCoords)); \n\ }\n"; #else static const char* const qglslTextureBrushSrcFragmentShader = "\n\ - varying highp vec2 textureCoords; \n\ + varying highp vec2 brushTextureCoords; \n\ uniform lowp sampler2D brushTexture; \n\ lowp vec4 srcPixel() \n\ { \n\ - return texture2D(brushTexture, textureCoords); \n\ + return texture2D(brushTexture, brushTextureCoords); \n\ }\n"; #endif static const char* const qglslTextureBrushSrcWithPatternFragmentShader = "\n\ - varying highp vec2 textureCoords; \n\ + varying highp vec2 brushTextureCoords; \n\ uniform lowp vec4 patternColor; \n\ uniform lowp sampler2D brushTexture; \n\ lowp vec4 srcPixel() \n\ { \n\ - return patternColor * (1.0 - texture2D(brushTexture, textureCoords).r); \n\ + return patternColor * (1.0 - texture2D(brushTexture, brushTextureCoords).r); \n\ }\n"; // Solid Fill Brush diff --git a/src/opengl/gl2paintengineex/qglgradientcache.cpp b/src/opengl/gl2paintengineex/qglgradientcache.cpp index 192e01c..a1495dd 100644 --- a/src/opengl/gl2paintengineex/qglgradientcache.cpp +++ b/src/opengl/gl2paintengineex/qglgradientcache.cpp @@ -39,10 +39,10 @@ ** ****************************************************************************/ +#include "qglgradientcache_p.h" #include <private/qdrawhelper_p.h> #include <private/qgl_p.h> -#include "qglgradientcache_p.h" QT_BEGIN_NAMESPACE diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp index 237b3ab..ee49a3d 100644 --- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp +++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp @@ -64,6 +64,7 @@ // #define QT_OPENGL_CACHE_AS_VBOS +#include "qglgradientcache_p.h" #include "qpaintengineex_opengl2_p.h" #include <string.h> //for memcpy @@ -77,8 +78,9 @@ #include <private/qfontengine_p.h> #include <private/qpixmapdata_gl_p.h> #include <private/qdatabuffer_p.h> +#include <private/qstatictext_p.h> +#include <private/qtriangulator_p.h> -#include "qglgradientcache_p.h" #include "qglengineshadermanager_p.h" #include "qgl2pexvertexarray_p.h" #include "qtriangulatingstroker_p.h" @@ -107,6 +109,11 @@ QGL2PaintEngineExPrivate::~QGL2PaintEngineExPrivate() e->data = 0; e->engine = 0; } + + if (elementIndicesVBOId != 0) { + glDeleteBuffers(1, &elementIndicesVBOId); + elementIndicesVBOId = 0; + } } void QGL2PaintEngineExPrivate::updateTextureFilter(GLenum target, GLenum wrapMode, bool smoothPixmapTransform, GLuint id) @@ -210,7 +217,9 @@ void QGL2PaintEngineExPrivate::updateBrushTexture() const QPixmap& texPixmap = currentBrush.texture(); glActiveTexture(GL_TEXTURE0 + QT_BRUSH_TEXTURE_UNIT); - QGLTexture *tex = ctx->d_func()->bindTexture(texPixmap, GL_TEXTURE_2D, GL_RGBA, QGLContext::InternalBindOption); + QGLTexture *tex = ctx->d_func()->bindTexture(texPixmap, GL_TEXTURE_2D, GL_RGBA, + QGLContext::InternalBindOption | + QGLContext::CanFlipNativePixmapBindOption); updateTextureFilter(GL_TEXTURE_2D, GL_REPEAT, q->state()->renderHints & QPainter::SmoothPixmapTransform); textureInvertedY = tex->options & QGLContext::InvertedYBindOption ? -1 : 1; } @@ -388,6 +397,7 @@ void QGL2PaintEngineExPrivate::updateMatrix() qreal(0.0001)); matrixDirty = false; + matrixUniformDirty = true; // Set the PMV matrix attribute. As we use an attributes rather than uniforms, we only // need to do this once for every matrix change and persists across all shader programs. @@ -506,6 +516,8 @@ void QGL2PaintEngineEx::beginNativePainting() ensureActive(); d->transferMode(BrushDrawingMode); + d->nativePaintingActive = true; + QGLContext *ctx = d->ctx; glUseProgram(0); @@ -521,10 +533,10 @@ void QGL2PaintEngineEx::beginNativePainting() float mv_matrix[4][4] = { - { mtx.m11(), mtx.m12(), 0, mtx.m13() }, - { mtx.m21(), mtx.m22(), 0, mtx.m23() }, - { 0, 0, 1, 0 }, - { mtx.dx(), mtx.dy(), 0, mtx.m33() } + { float(mtx.m11()), float(mtx.m12()), 0, float(mtx.m13()) }, + { float(mtx.m21()), float(mtx.m22()), 0, float(mtx.m23()) }, + { 0, 0, 1, 0 }, + { float(mtx.dx()), float(mtx.dy()), 0, float(mtx.m33()) } }; const QSize sz = d->device->size(); @@ -561,9 +573,9 @@ void QGL2PaintEngineExPrivate::resetGLState() glStencilMask(0xff); glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP); glStencilFunc(GL_ALWAYS, 0, 0xff); - glDisableVertexAttribArray(QT_TEXTURE_COORDS_ATTR); - glDisableVertexAttribArray(QT_VERTEX_COORDS_ATTR); - glDisableVertexAttribArray(QT_OPACITY_ATTR); + ctx->d_func()->setVertexAttribArrayEnabled(QT_TEXTURE_COORDS_ATTR, false); + ctx->d_func()->setVertexAttribArrayEnabled(QT_VERTEX_COORDS_ATTR, false); + ctx->d_func()->setVertexAttribArrayEnabled(QT_OPACITY_ATTR, false); #ifndef QT_OPENGL_ES_2 glColor4f(1.0f, 1.0f, 1.0f, 1.0f); // color may have been changed by glVertexAttrib() #endif @@ -573,6 +585,12 @@ void QGL2PaintEngineEx::endNativePainting() { Q_D(QGL2PaintEngineEx); d->needsSync = true; + d->nativePaintingActive = false; +} + +bool QGL2PaintEngineEx::isNativePaintingActive() const { + Q_D(const QGL2PaintEngineEx); + return d->nativePaintingActive; } void QGL2PaintEngineExPrivate::transferMode(EngineMode newMode) @@ -587,6 +605,9 @@ void QGL2PaintEngineExPrivate::transferMode(EngineMode newMode) if (newMode == TextDrawingMode) { setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, (GLfloat*)vertexCoordinateArray.data()); setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, (GLfloat*)textureCoordinateArray.data()); + shaderManager->setHasComplexGeometry(true); + } else { + shaderManager->setHasComplexGeometry(false); } if (newMode == ImageDrawingMode) { @@ -611,10 +632,13 @@ struct QGL2PEVectorPathCache { #ifdef QT_OPENGL_CACHE_AS_VBOS GLuint vbo; + GLuint ibo; #else float *vertices; + quint32 *indices; #endif int vertexCount; + int indexCount; GLenum primitiveType; qreal iscale; }; @@ -625,9 +649,12 @@ void QGL2PaintEngineExPrivate::cleanupVectorPath(QPaintEngineEx *engine, void *d #ifdef QT_OPENGL_CACHE_AS_VBOS Q_ASSERT(engine->type() == QPaintEngine::OpenGL2); static_cast<QGL2PaintEngineEx *>(engine)->d_func()->unusedVBOSToClean << c->vbo; + if (c->ibo) + d->unusedIBOSToClean << c->ibo; #else Q_UNUSED(engine); qFree(c->vertices); + qFree(c->indices); #endif delete c; } @@ -658,6 +685,9 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path) const QPointF* const points = reinterpret_cast<const QPointF*>(path.points()); + // ### Remove before release... + static bool do_vectorpath_cache = qgetenv("QT_OPENGL_NO_PATH_CACHE").isEmpty(); + // Check to see if there's any hints if (path.shape() == QVectorPath::RectangleHint) { QGLRect rect(points[0].x(), points[0].y(), points[2].x(), points[2].y()); @@ -669,6 +699,8 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path) QVectorPath::CacheEntry *data = path.lookupCacheData(q); QGL2PEVectorPathCache *cache; + bool updateCache = false; + if (data) { cache = (QGL2PEVectorPathCache *) data->data; // Check if scale factor is exceeded for curved paths and generate curves if so... @@ -678,34 +710,39 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path) #ifdef QT_OPENGL_CACHE_AS_VBOS glDeleteBuffers(1, &cache->vbo); cache->vbo = 0; + Q_ASSERT(cache->ibo == 0); #else qFree(cache->vertices); + Q_ASSERT(cache->indices == 0); #endif - cache->vertexCount = 0; + updateCache = true; } } } else { cache = new QGL2PEVectorPathCache; - cache->vertexCount = 0; data = const_cast<QVectorPath &>(path).addCacheData(q, cache, cleanupVectorPath); + updateCache = true; } // Flatten the path at the current scale factor and fill it into the cache struct. - if (!cache->vertexCount) { + if (updateCache) { vertexCoordinateArray.clear(); vertexCoordinateArray.addPath(path, inverseScale, false); int vertexCount = vertexCoordinateArray.vertexCount(); int floatSizeInBytes = vertexCount * 2 * sizeof(float); cache->vertexCount = vertexCount; + cache->indexCount = 0; cache->primitiveType = GL_TRIANGLE_FAN; cache->iscale = inverseScale; #ifdef QT_OPENGL_CACHE_AS_VBOS glGenBuffers(1, &cache->vbo); glBindBuffer(GL_ARRAY_BUFFER, cache->vbo); glBufferData(GL_ARRAY_BUFFER, floatSizeInBytes, vertexCoordinateArray.data(), GL_STATIC_DRAW); + cache->ibo = 0; #else cache->vertices = (float *) qMalloc(floatSizeInBytes); memcpy(cache->vertices, vertexCoordinateArray.data(), floatSizeInBytes); + cache->indices = 0; #endif } @@ -721,8 +758,6 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path) } else { // printf(" - Marking path as cachable...\n"); // Tag it for later so that if the same path is drawn twice, it is assumed to be static and thus cachable - // ### Remove before release... - static bool do_vectorpath_cache = qgetenv("QT_OPENGL_NO_PATH_CACHE").isEmpty(); if (do_vectorpath_cache) path.makeCacheable(); vertexCoordinateArray.clear(); @@ -732,31 +767,117 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path) } } else { - // The path is too complicated & needs the stencil technique - vertexCoordinateArray.clear(); - vertexCoordinateArray.addPath(path, inverseScale, false); + bool useCache = path.isCacheable(); + if (useCache) { + QRectF bbox = path.controlPointRect(); + // If the path doesn't fit within these limits, it is possible that the triangulation will fail. + useCache &= (bbox.left() > -0x8000 * inverseScale) + && (bbox.right() < 0x8000 * inverseScale) + && (bbox.top() > -0x8000 * inverseScale) + && (bbox.bottom() < 0x8000 * inverseScale); + } - fillStencilWithVertexArray(vertexCoordinateArray, path.hasWindingFill()); + if (useCache) { + QVectorPath::CacheEntry *data = path.lookupCacheData(q); + QGL2PEVectorPathCache *cache; - glStencilMask(0xff); - glStencilOp(GL_KEEP, GL_REPLACE, GL_REPLACE); + bool updateCache = false; + + if (data) { + cache = (QGL2PEVectorPathCache *) data->data; + // Check if scale factor is exceeded for curved paths and generate curves if so... + if (path.isCurved()) { + qreal scaleFactor = cache->iscale / inverseScale; + if (scaleFactor < 0.5 || scaleFactor > 2.0) { +#ifdef QT_OPENGL_CACHE_AS_VBOS + glDeleteBuffers(1, &cache->vbo); + glDeleteBuffers(1, &cache->ibo); +#else + qFree(cache->vertices); + qFree(cache->indices); +#endif + updateCache = true; + } + } + } else { + cache = new QGL2PEVectorPathCache; + data = const_cast<QVectorPath &>(path).addCacheData(q, cache, cleanupVectorPath); + updateCache = true; + } + + // Flatten the path at the current scale factor and fill it into the cache struct. + if (updateCache) { + QTriangleSet polys = qTriangulate(path, QTransform().scale(1 / inverseScale, 1 / inverseScale)); + cache->vertexCount = polys.vertices.size() / 2; + cache->indexCount = polys.indices.size(); + cache->primitiveType = GL_TRIANGLES; + cache->iscale = inverseScale; + +#ifdef QT_OPENGL_CACHE_AS_VBOS + glGenBuffers(1, &cache->vbo); + glGenBuffers(1, &cache->ibo); + glBindBuffer(GL_ARRAY_BUFFER, cache->vbo); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, cache->ibo); + glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(quint32) * polys.indices.size(), polys.indices.data(), GL_STATIC_DRAW); + + QVarLengthArray<float> vertices(polys.vertices.size()); + for (int i = 0; i < polys.vertices.size(); ++i) + vertices[i] = float(inverseScale * polys.vertices.at(i)); + glBufferData(GL_ARRAY_BUFFER, sizeof(float) * vertices.size(), vertices.data(), GL_STATIC_DRAW); +#else + cache->vertices = (float *) qMalloc(sizeof(float) * polys.vertices.size()); + cache->indices = (quint32 *) qMalloc(sizeof(quint32) * polys.indices.size()); + memcpy(cache->indices, polys.indices.data(), sizeof(quint32) * polys.indices.size()); + for (int i = 0; i < polys.vertices.size(); ++i) + cache->vertices[i] = float(inverseScale * polys.vertices.at(i)); +#endif + } + + prepareForDraw(currentBrush.isOpaque()); +#ifdef QT_OPENGL_CACHE_AS_VBOS + glBindBuffer(GL_ARRAY_BUFFER, cache->vbo); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, cache->ibo); + setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, 0); + glDrawElements(cache->primitiveType, cache->indexCount, GL_UNSIGNED_INT, 0); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); + glBindBuffer(GL_ARRAY_BUFFER, 0); +#else + setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, cache->vertices); + glDrawElements(cache->primitiveType, cache->indexCount, GL_UNSIGNED_INT, cache->indices); +#endif - if (q->state()->clipTestEnabled) { - // Pass when high bit is set, replace stencil value with current clip - glStencilFunc(GL_NOTEQUAL, q->state()->currentClip, GL_STENCIL_HIGH_BIT); - } else if (path.hasWindingFill()) { - // Pass when any bit is set, replace stencil value with 0 - glStencilFunc(GL_NOTEQUAL, 0, 0xff); } else { - // Pass when high bit is set, replace stencil value with 0 - glStencilFunc(GL_NOTEQUAL, 0, GL_STENCIL_HIGH_BIT); - } - prepareForDraw(currentBrush.isOpaque()); + // printf(" - Marking path as cachable...\n"); + // Tag it for later so that if the same path is drawn twice, it is assumed to be static and thus cachable + if (do_vectorpath_cache) + path.makeCacheable(); - // Stencil the brush onto the dest buffer - composite(vertexCoordinateArray.boundingRect()); - glStencilMask(0); - updateClipScissorTest(); + // The path is too complicated & needs the stencil technique + vertexCoordinateArray.clear(); + vertexCoordinateArray.addPath(path, inverseScale, false); + + fillStencilWithVertexArray(vertexCoordinateArray, path.hasWindingFill()); + + glStencilMask(0xff); + glStencilOp(GL_KEEP, GL_REPLACE, GL_REPLACE); + + if (q->state()->clipTestEnabled) { + // Pass when high bit is set, replace stencil value with current clip + glStencilFunc(GL_NOTEQUAL, q->state()->currentClip, GL_STENCIL_HIGH_BIT); + } else if (path.hasWindingFill()) { + // Pass when any bit is set, replace stencil value with 0 + glStencilFunc(GL_NOTEQUAL, 0, 0xff); + } else { + // Pass when high bit is set, replace stencil value with 0 + glStencilFunc(GL_NOTEQUAL, 0, GL_STENCIL_HIGH_BIT); + } + prepareForDraw(currentBrush.isOpaque()); + + // Stencil the brush onto the dest buffer + composite(vertexCoordinateArray.boundingRect()); + glStencilMask(0); + updateClipScissorTest(); + } } } @@ -938,6 +1059,7 @@ bool QGL2PaintEngineExPrivate::prepareForDraw(bool srcPixelsAreOpaque) // The shader program has changed so mark all uniforms as dirty: brushUniformsDirty = true; opacityUniformDirty = true; + matrixUniformDirty = true; } if (brushUniformsDirty && mode != ImageDrawingMode && mode != ImageArrayDrawingMode) @@ -948,6 +1070,12 @@ bool QGL2PaintEngineExPrivate::prepareForDraw(bool srcPixelsAreOpaque) opacityUniformDirty = false; } + if (matrixUniformDirty && shaderManager->hasComplexGeometry()) { + shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::Matrix), + pmvMatrix); + matrixUniformDirty = false; + } + return changed; } @@ -1048,16 +1176,20 @@ void QGL2PaintEngineExPrivate::stroke(const QVectorPath &path, const QPen &pen) // prepareForDraw() down below. updateMatrix(); + QRectF clip = q->state()->matrix.inverted().mapRect(q->state()->clipEnabled + ? q->state()->rectangleClip + : QRectF(0, 0, width, height)); + if (penStyle == Qt::SolidLine) { - stroker.process(path, pen); + stroker.process(path, pen, clip); } else { // Some sort of dash - dasher.process(path, pen); + dasher.process(path, pen, clip); QVectorPath dashStroke(dasher.points(), dasher.elementCount(), dasher.elementTypes()); - stroker.process(dashStroke, pen); + stroker.process(dashStroke, pen, clip); } if (opaque) { @@ -1192,9 +1324,33 @@ void QGL2PaintEngineEx::drawImage(const QRectF& dest, const QImage& image, const d->drawTexture(dest, src, image.size(), !image.hasAlphaChannel()); } -void QGL2PaintEngineEx::drawTexture(const QRectF &dest, GLuint textureId, const QSize &size, const QRectF &src) +void QGL2PaintEngineEx::drawStaticTextItem(QStaticTextItem *textItem) +{ + Q_D(QGL2PaintEngineEx); + + ensureActive(); + + QFontEngineGlyphCache::Type glyphType = textItem->fontEngine->glyphFormat >= 0 + ? QFontEngineGlyphCache::Type(textItem->fontEngine->glyphFormat) + : d->glyphCacheType; + if (glyphType == QFontEngineGlyphCache::Raster_RGBMask) { + if (d->device->alphaRequested() || state()->matrix.type() > QTransform::TxTranslate + || (state()->composition_mode != QPainter::CompositionMode_Source + && state()->composition_mode != QPainter::CompositionMode_SourceOver)) + { + glyphType = QFontEngineGlyphCache::Raster_A8; + } + } + + d->drawCachedGlyphs(glyphType, textItem); +} + +bool QGL2PaintEngineEx::drawTexture(const QRectF &dest, GLuint textureId, const QSize &size, const QRectF &src) { Q_D(QGL2PaintEngineEx); + if (!d->shaderManager) + return false; + ensureActive(); d->transferMode(ImageDrawingMode); @@ -1209,6 +1365,7 @@ void QGL2PaintEngineEx::drawTexture(const QRectF &dest, GLuint textureId, const d->updateTextureFilter(GL_TEXTURE_2D, GL_CLAMP_TO_EDGE, state()->renderHints & QPainter::SmoothPixmapTransform, textureId); d->drawTexture(dest, srcRect, size, false); + return true; } void QGL2PaintEngineEx::drawTextItem(const QPointF &p, const QTextItem &textItem) @@ -1245,33 +1402,67 @@ void QGL2PaintEngineEx::drawTextItem(const QPointF &p, const QTextItem &textItem } if (drawCached) { - d->drawCachedGlyphs(p, glyphType, ti); + QVarLengthArray<QFixedPoint> positions; + QVarLengthArray<glyph_t> glyphs; + QTransform matrix = QTransform::fromTranslate(p.x(), p.y()); + ti.fontEngine->getGlyphPositions(ti.glyphs, matrix, ti.flags, glyphs, positions); + + { + QStaticTextItem staticTextItem; + staticTextItem.chars = const_cast<QChar *>(ti.chars); + staticTextItem.fontEngine = ti.fontEngine; + staticTextItem.glyphs = glyphs.data(); + staticTextItem.numChars = ti.num_chars; + staticTextItem.numGlyphs = glyphs.size(); + staticTextItem.glyphPositions = positions.data(); + + d->drawCachedGlyphs(glyphType, &staticTextItem); + } return; } QPaintEngineEx::drawTextItem(p, ti); } -void QGL2PaintEngineExPrivate::drawCachedGlyphs(const QPointF &p, QFontEngineGlyphCache::Type glyphType, - const QTextItemInt &ti) +namespace { + + class QOpenGLStaticTextUserData: public QStaticTextUserData + { + public: + QOpenGLStaticTextUserData() + : QStaticTextUserData(OpenGLUserData) + { + } + + ~QOpenGLStaticTextUserData() + { + } + + QGL2PEXVertexArray vertexCoordinateArray; + QGL2PEXVertexArray textureCoordinateArray; + }; + +} + +// #define QT_OPENGL_DRAWCACHEDGLYPHS_INDEX_ARRAY_VBO + +void QGL2PaintEngineExPrivate::drawCachedGlyphs(QFontEngineGlyphCache::Type glyphType, + QStaticTextItem *staticTextItem) { Q_Q(QGL2PaintEngineEx); - QVarLengthArray<QFixedPoint> positions; - QVarLengthArray<glyph_t> glyphs; - QTransform matrix = QTransform::fromTranslate(p.x(), p.y()); - ti.fontEngine->getGlyphPositions(ti.glyphs, matrix, ti.flags, glyphs, positions); + QOpenGL2PaintEngineState *s = q->state(); QGLTextureGlyphCache *cache = - (QGLTextureGlyphCache *) ti.fontEngine->glyphCache(ctx, glyphType, QTransform()); - + (QGLTextureGlyphCache *) staticTextItem->fontEngine->glyphCache(ctx, glyphType, QTransform()); if (!cache || cache->cacheType() != glyphType) { cache = new QGLTextureGlyphCache(ctx, glyphType, QTransform()); - ti.fontEngine->setGlyphCache(ctx, cache); + staticTextItem->fontEngine->setGlyphCache(ctx, cache); } cache->setPaintEnginePrivate(this); - cache->populate(ti, glyphs, positions); + cache->populate(staticTextItem->fontEngine, staticTextItem->numGlyphs, staticTextItem->glyphs, + staticTextItem->glyphPositions); if (cache->width() == 0 || cache->height() == 0) return; @@ -1283,20 +1474,83 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(const QPointF &p, QFontEngineGly GLfloat dx = 1.0 / cache->width(); GLfloat dy = 1.0 / cache->height(); - vertexCoordinateArray.clear(); - textureCoordinateArray.clear(); + bool recreateVertexArrays = false; + if (staticTextItem->userDataNeedsUpdate) + recreateVertexArrays = true; + else if (staticTextItem->userData == 0) + recreateVertexArrays = true; + else if (staticTextItem->userData->type != QStaticTextUserData::OpenGLUserData) + recreateVertexArrays = true; + + // Use global arrays by default + QGL2PEXVertexArray *vertexCoordinates = &vertexCoordinateArray; + QGL2PEXVertexArray *textureCoordinates = &textureCoordinateArray; + + if (staticTextItem->useBackendOptimizations) { + QOpenGLStaticTextUserData *userData = 0; + + if (staticTextItem->userData == 0 + || staticTextItem->userData->type != QStaticTextUserData::OpenGLUserData) { + + userData = new QOpenGLStaticTextUserData(); + staticTextItem->setUserData(userData); + + } else { + userData = static_cast<QOpenGLStaticTextUserData*>(staticTextItem->userData); + } + + // Use cache if backend optimizations is turned on + vertexCoordinates = &userData->vertexCoordinateArray; + textureCoordinates = &userData->textureCoordinateArray; + } + + + if (recreateVertexArrays) { + vertexCoordinates->clear(); + textureCoordinates->clear(); + + for (int i=0; i<staticTextItem->numGlyphs; ++i) { + const QTextureGlyphCache::Coord &c = cache->coords.value(staticTextItem->glyphs[i]); + int x = staticTextItem->glyphPositions[i].x.toInt() + c.baseLineX - margin; + int y = staticTextItem->glyphPositions[i].y.toInt() - c.baseLineY - margin; + + vertexCoordinates->addQuad(QRectF(x, y, c.w, c.h)); + textureCoordinates->addQuad(QRectF(c.x*dx, c.y*dy, c.w * dx, c.h * dy)); + } + + staticTextItem->userDataNeedsUpdate = false; + } + + if (elementIndices.size() < staticTextItem->numGlyphs*6) { + Q_ASSERT(elementIndices.size() % 6 == 0); + int j = elementIndices.size() / 6 * 4; + while (j < staticTextItem->numGlyphs*4) { + elementIndices.append(j + 0); + elementIndices.append(j + 0); + elementIndices.append(j + 1); + elementIndices.append(j + 2); + elementIndices.append(j + 3); + elementIndices.append(j + 3); - for (int i=0; i<glyphs.size(); ++i) { - const QTextureGlyphCache::Coord &c = cache->coords.value(glyphs[i]); - int x = positions[i].x.toInt() + c.baseLineX - margin; - int y = positions[i].y.toInt() - c.baseLineY - margin; + j += 4; + } - vertexCoordinateArray.addRect(QRectF(x, y, c.w, c.h)); - textureCoordinateArray.addRect(QRectF(c.x*dx, c.y*dy, c.w * dx, c.h * dy)); +#if defined(QT_OPENGL_DRAWCACHEDGLYPHS_INDEX_ARRAY_VBO) + if (elementIndicesVBOId == 0) + glGenBuffers(1, &elementIndicesVBOId); + + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, elementIndicesVBOId); + glBufferData(GL_ELEMENT_ARRAY_BUFFER, elementIndices.size() * sizeof(GLushort), + elementIndices.constData(), GL_STATIC_DRAW); +#endif + } else { +#if defined(QT_OPENGL_DRAWCACHEDGLYPHS_INDEX_ARRAY_VBO) + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, elementIndicesVBOId); +#endif } - setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, (GLfloat*)vertexCoordinateArray.data()); - setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, (GLfloat*)textureCoordinateArray.data()); + setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, (GLfloat*)vertexCoordinates->data()); + setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, (GLfloat*)textureCoordinates->data()); if (addOffset) { addOffset = false; @@ -1363,7 +1617,11 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(const QPointF &p, QFontEngineGly updateTextureFilter(GL_TEXTURE_2D, GL_REPEAT, false); shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::MaskTexture), QT_MASK_TEXTURE_UNIT); - glDrawArrays(GL_TRIANGLES, 0, 6 * glyphs.size()); +#if defined(QT_OPENGL_DRAWCACHEDGLYPHS_INDEX_ARRAY_VBO) + glDrawElements(GL_TRIANGLE_STRIP, 6 * staticTextItem->numGlyphs, GL_UNSIGNED_SHORT, 0); +#else + glDrawElements(GL_TRIANGLE_STRIP, 6 * staticTextItem->numGlyphs, GL_UNSIGNED_SHORT, elementIndices.data()); +#endif shaderManager->setMaskType(QGLEngineShaderManager::SubPixelMaskPass2); @@ -1389,29 +1647,39 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(const QPointF &p, QFontEngineGly //### TODO: Gamma correction glActiveTexture(GL_TEXTURE0 + QT_MASK_TEXTURE_UNIT); - glBindTexture(GL_TEXTURE_2D, cache->texture()); - QOpenGL2PaintEngineState *s = q->state(); + if (lastMaskTextureUsed != cache->texture()) { + glBindTexture(GL_TEXTURE_2D, cache->texture()); + lastMaskTextureUsed = cache->texture(); + } updateTextureFilter(GL_TEXTURE_2D, GL_REPEAT, s->matrix.type() > QTransform::TxTranslate); - shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::MaskTexture), QT_MASK_TEXTURE_UNIT); - glDrawArrays(GL_TRIANGLES, 0, 6 * glyphs.size()); + +#if defined(QT_OPENGL_DRAWCACHEDGLYPHS_INDEX_ARRAY_VBO) + glDrawElements(GL_TRIANGLE_STRIP, 6 * staticTextItem->numGlyphs, GL_UNSIGNED_SHORT, 0); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); +#else + glDrawElements(GL_TRIANGLE_STRIP, 6 * staticTextItem->numGlyphs, GL_UNSIGNED_SHORT, elementIndices.data()); +#endif } -void QGL2PaintEngineEx::drawPixmaps(const QDrawPixmaps::Data *drawingData, int dataCount, const QPixmap &pixmap, QDrawPixmaps::DrawingHints hints) +void QGL2PaintEngineEx::drawPixmapFragments(const QPainter::PixmapFragment *fragments, int fragmentCount, const QPixmap &pixmap, + QPainter::PixmapFragmentHints hints) { Q_D(QGL2PaintEngineEx); // Use fallback for extended composition modes. if (state()->composition_mode > QPainter::CompositionMode_Plus) { - QPaintEngineEx::drawPixmaps(drawingData, dataCount, pixmap, hints); + QPaintEngineEx::drawPixmapFragments(fragments, fragmentCount, pixmap, hints); return; } ensureActive(); - d->drawPixmaps(drawingData, dataCount, pixmap, hints); + d->drawPixmapFragments(fragments, fragmentCount, pixmap, hints); } -void QGL2PaintEngineExPrivate::drawPixmaps(const QDrawPixmaps::Data *drawingData, int dataCount, const QPixmap &pixmap, QDrawPixmaps::DrawingHints hints) +void QGL2PaintEngineExPrivate::drawPixmapFragments(const QPainter::PixmapFragment *fragments, + int fragmentCount, const QPixmap &pixmap, + QPainter::PixmapFragmentHints hints) { GLfloat dx = 1.0f / pixmap.size().width(); GLfloat dy = 1.0f / pixmap.size().height(); @@ -1432,37 +1700,38 @@ void QGL2PaintEngineExPrivate::drawPixmaps(const QDrawPixmaps::Data *drawingData bool allOpaque = true; - for (int i = 0; i < dataCount; ++i) { + for (int i = 0; i < fragmentCount; ++i) { qreal s = 0; qreal c = 1; - if (drawingData[i].rotation != 0) { - s = qFastSin(drawingData[i].rotation * Q_PI / 180); - c = qFastCos(drawingData[i].rotation * Q_PI / 180); + if (fragments[i].rotation != 0) { + s = qFastSin(fragments[i].rotation * Q_PI / 180); + c = qFastCos(fragments[i].rotation * Q_PI / 180); } - qreal right = 0.5 * drawingData[i].scaleX * drawingData[i].source.width(); - qreal bottom = 0.5 * drawingData[i].scaleY * drawingData[i].source.height(); + qreal right = 0.5 * fragments[i].scaleX * fragments[i].width; + qreal bottom = 0.5 * fragments[i].scaleY * fragments[i].height; QGLPoint bottomRight(right * c - bottom * s, right * s + bottom * c); QGLPoint bottomLeft(-right * c - bottom * s, -right * s + bottom * c); - vertexCoordinateArray.lineToArray(bottomRight.x + drawingData[i].point.x(), bottomRight.y + drawingData[i].point.y()); - vertexCoordinateArray.lineToArray(-bottomLeft.x + drawingData[i].point.x(), -bottomLeft.y + drawingData[i].point.y()); - vertexCoordinateArray.lineToArray(-bottomRight.x + drawingData[i].point.x(), -bottomRight.y + drawingData[i].point.y()); - vertexCoordinateArray.lineToArray(-bottomRight.x + drawingData[i].point.x(), -bottomRight.y + drawingData[i].point.y()); - vertexCoordinateArray.lineToArray(bottomLeft.x + drawingData[i].point.x(), bottomLeft.y + drawingData[i].point.y()); - vertexCoordinateArray.lineToArray(bottomRight.x + drawingData[i].point.x(), bottomRight.y + drawingData[i].point.y()); - - QGLRect src(drawingData[i].source.left() * dx, drawingData[i].source.top() * dy, - drawingData[i].source.right() * dx, drawingData[i].source.bottom() * dy); - - textureCoordinateArray.lineToArray(src.right, src.bottom); - textureCoordinateArray.lineToArray(src.right, src.top); - textureCoordinateArray.lineToArray(src.left, src.top); - textureCoordinateArray.lineToArray(src.left, src.top); - textureCoordinateArray.lineToArray(src.left, src.bottom); - textureCoordinateArray.lineToArray(src.right, src.bottom); - - qreal opacity = drawingData[i].opacity * q->state()->opacity; + vertexCoordinateArray.addVertex(bottomRight.x + fragments[i].x, bottomRight.y + fragments[i].y); + vertexCoordinateArray.addVertex(-bottomLeft.x + fragments[i].x, -bottomLeft.y + fragments[i].y); + vertexCoordinateArray.addVertex(-bottomRight.x + fragments[i].x, -bottomRight.y + fragments[i].y); + vertexCoordinateArray.addVertex(-bottomRight.x + fragments[i].x, -bottomRight.y + fragments[i].y); + vertexCoordinateArray.addVertex(bottomLeft.x + fragments[i].x, bottomLeft.y + fragments[i].y); + vertexCoordinateArray.addVertex(bottomRight.x + fragments[i].x, bottomRight.y + fragments[i].y); + + QGLRect src(fragments[i].sourceLeft * dx, fragments[i].sourceTop * dy, + (fragments[i].sourceLeft + fragments[i].width) * dx, + (fragments[i].sourceTop + fragments[i].height) * dy); + + textureCoordinateArray.addVertex(src.right, src.bottom); + textureCoordinateArray.addVertex(src.right, src.top); + textureCoordinateArray.addVertex(src.left, src.top); + textureCoordinateArray.addVertex(src.left, src.top); + textureCoordinateArray.addVertex(src.left, src.bottom); + textureCoordinateArray.addVertex(src.right, src.bottom); + + qreal opacity = fragments[i].opacity * q->state()->opacity; opacityArray << opacity << opacity << opacity << opacity << opacity << opacity; allOpaque &= (opacity >= 0.99f); } @@ -1475,21 +1744,22 @@ void QGL2PaintEngineExPrivate::drawPixmaps(const QDrawPixmaps::Data *drawingData if (texture->options & QGLContext::InvertedYBindOption) { // Flip texture y-coordinate. QGLPoint *data = textureCoordinateArray.data(); - for (int i = 0; i < 6 * dataCount; ++i) + for (int i = 0; i < 6 * fragmentCount; ++i) data[i].y = 1 - data[i].y; } transferMode(ImageArrayDrawingMode); bool isBitmap = pixmap.isQBitmap(); - bool isOpaque = !isBitmap && (!pixmap.hasAlphaChannel() || (hints & QDrawPixmaps::OpaqueHint)) && allOpaque; + bool isOpaque = !isBitmap && (!pixmap.hasAlphaChannel() || (hints & QPainter::OpaqueHint)) && allOpaque; updateTextureFilter(GL_TEXTURE_2D, GL_CLAMP_TO_EDGE, q->state()->renderHints & QPainter::SmoothPixmapTransform, texture->id); // Setup for texture drawing currentBrush = noBrush; - shaderManager->setSrcPixelType(isBitmap ? QGLEngineShaderManager::PatternSrc : QGLEngineShaderManager::ImageSrc); + shaderManager->setSrcPixelType(isBitmap ? QGLEngineShaderManager::PatternSrc + : QGLEngineShaderManager::ImageSrc); if (prepareForDraw(isOpaque)) shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::ImageTexture), QT_IMAGE_TEXTURE_UNIT); @@ -1498,7 +1768,7 @@ void QGL2PaintEngineExPrivate::drawPixmaps(const QDrawPixmaps::Data *drawingData shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::PatternColor), col); } - glDrawArrays(GL_TRIANGLES, 0, 6 * dataCount); + glDrawArrays(GL_TRIANGLES, 0, 6 * fragmentCount); } bool QGL2PaintEngineEx::begin(QPaintDevice *pdev) @@ -1523,6 +1793,7 @@ bool QGL2PaintEngineEx::begin(QPaintDevice *pdev) d->mode = BrushDrawingMode; d->brushTextureDirty = true; d->brushUniformsDirty = true; + d->matrixUniformDirty = true; d->matrixDirty = true; d->compositionModeDirty = true; d->opacityUniformDirty = true; @@ -1605,6 +1876,10 @@ bool QGL2PaintEngineEx::end() glDeleteBuffers(d->unusedVBOSToClean.size(), d->unusedVBOSToClean.constData()); d->unusedVBOSToClean.clear(); } + if (!d->unusedIBOSToClean.isEmpty()) { + glDeleteBuffers(d->unusedIBOSToClean.size(), d->unusedIBOSToClean.constData()); + d->unusedIBOSToClean.clear(); + } #endif return false; @@ -1626,6 +1901,7 @@ void QGL2PaintEngineEx::ensureActive() d->transferMode(BrushDrawingMode); glViewport(0, 0, d->width, d->height); d->needsSync = false; + d->lastMaskTextureUsed = 0; d->shaderManager->setDirty(); d->ctx->d_func()->syncGlState(); for (int i = 0; i < 3; ++i) diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h index 8fa0eff..59b90d8 100644 --- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h +++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h @@ -123,9 +123,9 @@ public: virtual void renderHintsChanged(); virtual void transformChanged(); - virtual void drawTexture(const QRectF &r, GLuint textureId, const QSize &size, const QRectF &sr); virtual void drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr); - virtual void drawPixmaps(const QDrawPixmaps::Data *drawingData, int dataCount, const QPixmap &pixmap, QDrawPixmaps::DrawingHints hints); + virtual void drawPixmapFragments(const QPainter::PixmapFragment *fragments, int fragmentCount, const QPixmap &pixmap, + QPainter::PixmapFragmentHints hints); virtual void drawImage(const QRectF &r, const QImage &pm, const QRectF &sr, Qt::ImageConversionFlags flags = Qt::AutoColor); virtual void drawTextItem(const QPointF &p, const QTextItem &textItem); @@ -133,6 +133,9 @@ public: virtual void stroke(const QVectorPath &path, const QPen &pen); virtual void clip(const QVectorPath &path, Qt::ClipOperation op); + virtual void drawStaticTextItem(QStaticTextItem *textItem); + + bool drawTexture(const QRectF &r, GLuint textureId, const QSize &size, const QRectF &sr); Type type() const { return OpenGL2; } @@ -152,11 +155,11 @@ public: void setRenderTextActive(bool); + bool isNativePaintingActive() const; private: Q_DISABLE_COPY(QGL2PaintEngineEx) }; - class QGL2PaintEngineExPrivate : public QPaintEngineExPrivate { Q_DECLARE_PUBLIC(QGL2PaintEngineEx) @@ -173,9 +176,13 @@ public: width(0), height(0), ctx(0), useSystemClip(true), + elementIndicesVBOId(0), + opacityArray(0), snapToPixelGrid(false), addOffset(false), - inverseScale(1) + nativePaintingActive(false), + inverseScale(1), + lastMaskTextureUsed(0) { } ~QGL2PaintEngineExPrivate(); @@ -193,8 +200,9 @@ public: void fill(const QVectorPath &path); void stroke(const QVectorPath &path, const QPen &pen); void drawTexture(const QGLRect& dest, const QGLRect& src, const QSize &textureSize, bool opaque, bool pattern = false); - void drawPixmaps(const QDrawPixmaps::Data *drawingData, int dataCount, const QPixmap &pixmap, QDrawPixmaps::DrawingHints hints); - void drawCachedGlyphs(const QPointF &p, QFontEngineGlyphCache::Type glyphType, const QTextItemInt &ti); + void drawPixmapFragments(const QPainter::PixmapFragment *fragments, int fragmentCount, const QPixmap &pixmap, + QPainter::PixmapFragmentHints hints); + void drawCachedGlyphs(QFontEngineGlyphCache::Type glyphType, QStaticTextItem *staticTextItem); // Calls glVertexAttributePointer if the pointer has changed inline void setVertexAttributePointer(unsigned int arrayIndex, const GLfloat *pointer); @@ -253,6 +261,7 @@ public: bool brushTextureDirty; bool brushUniformsDirty; bool opacityUniformDirty; + bool matrixUniformDirty; bool stencilClean; // Has the stencil not been used for clipping so far? bool useSystemClip; @@ -265,16 +274,20 @@ public: QGL2PEXVertexArray vertexCoordinateArray; QGL2PEXVertexArray textureCoordinateArray; + QVector<GLushort> elementIndices; + GLuint elementIndicesVBOId; QDataBuffer<GLfloat> opacityArray; GLfloat staticVertexCoordinateArray[8]; GLfloat staticTextureCoordinateArray[8]; bool snapToPixelGrid; bool addOffset; // When enabled, adds a 0.49,0.49 offset to matrix in updateMatrix + bool nativePaintingActive; GLfloat pmvMatrix[3][3]; GLfloat inverseScale; GLuint lastTextureUsed; + GLuint lastMaskTextureUsed; bool needsSync; bool multisamplingAlwaysEnabled; @@ -293,6 +306,7 @@ public: QSet<QVectorPath::CacheEntry *> pathCaches; QVector<GLuint> unusedVBOSToClean; + QVector<GLuint> unusedIBOSToClean; const GLfloat *vertexAttribPointers[3]; }; diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp b/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp index 994c1c9..410cf21 100644 --- a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp +++ b/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp @@ -42,6 +42,10 @@ #include "qtextureglyphcache_gl_p.h" #include "qpaintengineex_opengl2_p.h" +#if defined QT_OPENGL_ES_2 && !defined(QT_NO_EGL) +#include "private/qeglcontext_p.h" +#endif + QT_BEGIN_NAMESPACE #ifdef Q_WS_WIN @@ -49,12 +53,19 @@ extern Q_GUI_EXPORT bool qt_cleartype_enabled; #endif QGLTextureGlyphCache::QGLTextureGlyphCache(QGLContext *context, QFontEngineGlyphCache::Type type, const QTransform &matrix) - : QTextureGlyphCache(type, matrix) + : QImageTextureGlyphCache(type, matrix) , ctx(context) , m_width(0) , m_height(0) { - glGenFramebuffers(1, &m_fbo); + // broken FBO readback is a bug in the SGX 1.3 and 1.4 drivers for the N900 where + // copying between FBO's is broken if the texture is either GL_ALPHA or POT. The + // workaround is to use a system-memory copy of the glyph cache for this device. + // Switching to NPOT and GL_RGBA would both cost a lot more graphics memory and + // be slower, so that is not desireable. + if (!ctx->d_ptr->workaround_brokenFBOReadBack) + glGenFramebuffers(1, &m_fbo); + connect(QGLSignalProxy::instance(), SIGNAL(aboutToDestroyContext(const QGLContext*)), SLOT(contextDestroyed(const QGLContext*))); } @@ -63,7 +74,9 @@ QGLTextureGlyphCache::~QGLTextureGlyphCache() { if (ctx) { QGLShareContextScope scope(ctx); - glDeleteFramebuffers(1, &m_fbo); + + if (!ctx->d_ptr->workaround_brokenFBOReadBack) + glDeleteFramebuffers(1, &m_fbo); if (m_width || m_height) glDeleteTextures(1, &m_texture); @@ -72,6 +85,18 @@ QGLTextureGlyphCache::~QGLTextureGlyphCache() void QGLTextureGlyphCache::createTextureData(int width, int height) { + // create in QImageTextureGlyphCache baseclass is meant to be called + // only to create the initial image and does not preserve the content, + // so we don't call when this function is called from resize. + if (ctx->d_ptr->workaround_brokenFBOReadBack && image().isNull()) + QImageTextureGlyphCache::createTextureData(width, height); + + // Make the lower glyph texture size 16 x 16. + if (width < 16) + width = 16; + if (height < 16) + height = 16; + glGenTextures(1, &m_texture); glBindTexture(GL_TEXTURE_2D, m_texture); @@ -93,14 +118,28 @@ void QGLTextureGlyphCache::createTextureData(int width, int height) void QGLTextureGlyphCache::resizeTextureData(int width, int height) { - // ### the QTextureGlyphCache API needs to be reworked to allow - // ### resizeTextureData to fail - int oldWidth = m_width; int oldHeight = m_height; + // Make the lower glyph texture size 16 x 16. + if (width < 16) + width = 16; + if (height < 16) + height = 16; + GLuint oldTexture = m_texture; createTextureData(width, height); + + if (ctx->d_ptr->workaround_brokenFBOReadBack) { + QImageTextureGlyphCache::resizeTextureData(width, height); + Q_ASSERT(image().depth() == 8); + glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, oldWidth, oldHeight, GL_ALPHA, GL_UNSIGNED_BYTE, image().constBits()); + glDeleteTextures(1, &oldTexture); + return; + } + + // ### the QTextureGlyphCache API needs to be reworked to allow + // ### resizeTextureData to fail glBindFramebuffer(GL_FRAMEBUFFER_EXT, m_fbo); @@ -159,20 +198,7 @@ void QGLTextureGlyphCache::resizeTextureData(int width, int height) glBindTexture(GL_TEXTURE_2D, m_texture); -#ifdef QT_OPENGL_ES_2 - QDataBuffer<uchar> buffer(4*oldWidth*oldHeight); - buffer.resize(4*oldWidth*oldHeight); - glReadPixels(0, 0, oldWidth, oldHeight, GL_RGBA, GL_UNSIGNED_BYTE, buffer.data()); - - // do an in-place conversion from GL_RGBA to GL_ALPHA - for (int i=0; i<oldWidth*oldHeight; ++i) - buffer.data()[i] = buffer.at(4*i + 3); - - glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, oldWidth, oldHeight, - GL_ALPHA, GL_UNSIGNED_BYTE, buffer.data()); -#else glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, oldWidth, oldHeight); -#endif glFramebufferRenderbuffer(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, 0); @@ -187,6 +213,21 @@ void QGLTextureGlyphCache::resizeTextureData(int width, int height) void QGLTextureGlyphCache::fillTexture(const Coord &c, glyph_t glyph) { + if (ctx->d_ptr->workaround_brokenFBOReadBack) { + QImageTextureGlyphCache::fillTexture(c, glyph); + + glBindTexture(GL_TEXTURE_2D, m_texture); + const QImage &texture = image(); + const uchar *bits = texture.constBits(); + bits += c.y * texture.bytesPerLine() + c.x; + for (int i=0; i<c.h; ++i) { + glTexSubImage2D(GL_TEXTURE_2D, 0, c.x, c.y + i, c.w, 1, GL_ALPHA, GL_UNSIGNED_BYTE, bits); + bits += texture.bytesPerLine(); + } + + return; + } + QImage mask = textureMapForGlyph(glyph); const int maskWidth = mask.width(); const int maskHeight = mask.height(); @@ -235,17 +276,6 @@ void QGLTextureGlyphCache::fillTexture(const Coord &c, glyph_t glyph) } } -int QGLTextureGlyphCache::glyphMargin() const -{ -#if defined(Q_WS_MAC) - return 2; -#elif defined (Q_WS_X11) - return 0; -#else - return m_type == QFontEngineGlyphCache::Raster_RGBMask ? 2 : 0; -#endif -} - int QGLTextureGlyphCache::glyphPadding() const { return 1; diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h b/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h index 04731b1..6bcd655 100644 --- a/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h +++ b/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h @@ -62,7 +62,7 @@ QT_BEGIN_NAMESPACE class QGL2PaintEngineExPrivate; -class QGLTextureGlyphCache : public QObject, public QTextureGlyphCache +class Q_OPENGL_EXPORT QGLTextureGlyphCache : public QObject, public QImageTextureGlyphCache { Q_OBJECT public: @@ -72,7 +72,6 @@ public: virtual void createTextureData(int width, int height); virtual void resizeTextureData(int width, int height); virtual void fillTexture(const Coord &c, glyph_t glyph); - virtual int glyphMargin() const; virtual int glyphPadding() const; inline GLuint texture() const { return m_texture; } diff --git a/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp b/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp index eaa3d57..9bc099d 100644 --- a/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp +++ b/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp @@ -73,7 +73,7 @@ void QTriangulatingStroker::endCapOrJoinClosed(const qreal *start, const qreal * } -void QTriangulatingStroker::process(const QVectorPath &path, const QPen &pen) +void QTriangulatingStroker::process(const QVectorPath &path, const QPen &pen, const QRectF &) { const qreal *pts = path.points(); const QPainterPath::ElementType *types = path.elements(); @@ -111,7 +111,7 @@ void QTriangulatingStroker::process(const QVectorPath &path, const QPen &pen) // depending on if the pen is cosmetic or not. // // The curvyness value of PI/14 was based on, - // arcLength=2*PI*r/4=PI/2 and splitting length into somewhere + // arcLength = 2*PI*r/4 = PI*r/2 and splitting length into somewhere // between 3 and 8 where 5 seemed to be give pretty good results // hence: Q_PI/14. Lower divisors will give more detail at the // direct cost of performance. @@ -481,31 +481,53 @@ static void qdashprocessor_cubicTo(qreal, qreal, qreal, qreal, qreal, qreal, voi } QDashedStrokeProcessor::QDashedStrokeProcessor() - : m_dash_stroker(0), m_inv_scale(1) + : m_points(0), m_types(0), + m_dash_stroker(0), m_inv_scale(1) { m_dash_stroker.setMoveToHook(qdashprocessor_moveTo); m_dash_stroker.setLineToHook(qdashprocessor_lineTo); m_dash_stroker.setCubicToHook(qdashprocessor_cubicTo); } -void QDashedStrokeProcessor::process(const QVectorPath &path, const QPen &pen) +void QDashedStrokeProcessor::process(const QVectorPath &path, const QPen &pen, const QRectF &clip) { const qreal *pts = path.points(); const QPainterPath::ElementType *types = path.elements(); int count = path.elementCount(); + bool cosmetic = pen.isCosmetic(); + m_points.reset(); m_types.reset(); + m_points.reserve(path.elementCount()); + m_types.reserve(path.elementCount()); qreal width = qpen_widthf(pen); if (width == 0) width = 1; m_dash_stroker.setDashPattern(pen.dashPattern()); - m_dash_stroker.setStrokeWidth(pen.isCosmetic() ? width * m_inv_scale : width); + m_dash_stroker.setStrokeWidth(cosmetic ? width * m_inv_scale : width); m_dash_stroker.setMiterLimit(pen.miterLimit()); - qreal curvyness = sqrt(width) * m_inv_scale / 8; + m_dash_stroker.setClipRect(clip); + + float curvynessAdd, curvynessMul, roundness = 0; + + // simplfy pens that are thin in device size (2px wide or less) + if (width < 2.5 && (cosmetic || m_inv_scale == 1)) { + curvynessAdd = 0.5; + curvynessMul = CURVE_FLATNESS / m_inv_scale; + roundness = 1; + } else if (cosmetic) { + curvynessAdd= width / 2; + curvynessMul= CURVE_FLATNESS; + roundness = qMax<int>(4, width * CURVE_FLATNESS); + } else { + curvynessAdd = width * m_inv_scale; + curvynessMul = CURVE_FLATNESS / m_inv_scale; + roundness = qMax<int>(4, width * curvynessMul); + } if (count < 2) return; @@ -540,9 +562,11 @@ void QDashedStrokeProcessor::process(const QVectorPath &path, const QPen &pen) *(((const QPointF *) pts) + 1), *(((const QPointF *) pts) + 2)); QRectF bounds = b.bounds(); - int threshold = qMin<float>(64, qMax(bounds.width(), bounds.height()) * curvyness); + float rad = qMax(bounds.width(), bounds.height()); + int threshold = qMin<float>(64, (rad + curvynessAdd) * curvynessMul); if (threshold < 4) threshold = 4; + qreal threshold_minus_1 = threshold - 1; for (int i=0; i<threshold; ++i) { QPointF pt = b.pointAt(i / threshold_minus_1); diff --git a/src/opengl/gl2paintengineex/qtriangulatingstroker_p.h b/src/opengl/gl2paintengineex/qtriangulatingstroker_p.h index 06b8a44..ab27ed6 100644 --- a/src/opengl/gl2paintengineex/qtriangulatingstroker_p.h +++ b/src/opengl/gl2paintengineex/qtriangulatingstroker_p.h @@ -54,7 +54,8 @@ QT_BEGIN_NAMESPACE class QTriangulatingStroker { public: - void process(const QVectorPath &path, const QPen &pen); + QTriangulatingStroker() : m_vertices(0) {} + void process(const QVectorPath &path, const QPen &pen, const QRectF &clip); inline int vertexCount() const { return m_vertices.size(); } inline const float *vertices() const { return m_vertices.data(); } @@ -96,7 +97,7 @@ class QDashedStrokeProcessor public: QDashedStrokeProcessor(); - void process(const QVectorPath &path, const QPen &pen); + void process(const QVectorPath &path, const QPen &pen, const QRectF &clip); inline void addElement(QPainterPath::ElementType type, qreal x, qreal y) { m_points.add(x); diff --git a/src/opengl/gl2paintengineex/qtriangulator.cpp b/src/opengl/gl2paintengineex/qtriangulator.cpp new file mode 100644 index 0000000..df7cbc2 --- /dev/null +++ b/src/opengl/gl2paintengineex/qtriangulator.cpp @@ -0,0 +1,2985 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtOpenGL module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qtriangulator_p.h" + +#include <QtGui/qdialog.h> +#include <QtGui/qevent.h> +#include <QtGui/qpainter.h> +#include <QtGui/qpainterpath.h> +#include <QtGui/private/qbezier_p.h> +#include <QtGui/private/qdatabuffer_p.h> +#include <QtCore/qbitarray.h> +#include <QtCore/qvarlengtharray.h> +#include <QtCore/qqueue.h> +#include <QtCore/qglobal.h> +#include <QtCore/qpoint.h> +#include <QtCore/qalgorithms.h> +#include <QtDebug> + +#include <math.h> + +QT_BEGIN_NAMESPACE + +//#define Q_TRIANGULATOR_DEBUG + +#define Q_FIXED_POINT_SCALE 32 + +// Quick sort. +template <class T, class LessThan> +static void sort(T *array, int count, LessThan lessThan) +{ + // If the number of elements fall below some threshold, use insertion sort. + const int INSERTION_SORT_LIMIT = 7; // About 7 is fastest on my computer... + if (count <= INSERTION_SORT_LIMIT) { + for (int i = 1; i < count; ++i) { + T temp = array[i]; + int j = i; + while (j > 0 && lessThan(temp, array[j - 1])) { + array[j] = array[j - 1]; + --j; + } + array[j] = temp; + } + return; + } + + int high = count - 1; + int low = 0; + int mid = high / 2; + if (lessThan(array[mid], array[low])) + qSwap(array[mid], array[low]); + if (lessThan(array[high], array[mid])) + qSwap(array[high], array[mid]); + if (lessThan(array[mid], array[low])) + qSwap(array[mid], array[low]); + + --high; + ++low; + qSwap(array[mid], array[high]); + int pivot = high; + --high; + + while (low <= high) { + while (!lessThan(array[pivot], array[low])) { + ++low; + if (low > high) + goto sort_loop_end; + } + while (!lessThan(array[high], array[pivot])) { + --high; + if (low > high) + goto sort_loop_end; + } + qSwap(array[low], array[high]); + ++low; + --high; + } +sort_loop_end: + if (low != pivot) + qSwap(array[pivot], array[low]); + sort(array, low, lessThan); + sort(array + low + 1, count - low - 1, lessThan); +} + +// Quick sort. +template <class T> +static void sort(T *array, int count) +{ + // If the number of elements fall below some threshold, use insertion sort. + const int INSERTION_SORT_LIMIT = 25; // About 25 is fastest on my computer... + if (count <= INSERTION_SORT_LIMIT) { + for (int i = 1; i < count; ++i) { + T temp = array[i]; + int j = i; + while (j > 0 && (temp < array[j - 1])) { + array[j] = array[j - 1]; + --j; + } + array[j] = temp; + } + return; + } + + int high = count - 1; + int low = 0; + int mid = high / 2; + if ((array[mid] < array[low])) + qSwap(array[mid], array[low]); + if ((array[high] < array[mid])) + qSwap(array[high], array[mid]); + if ((array[mid] < array[low])) + qSwap(array[mid], array[low]); + + --high; + ++low; + qSwap(array[mid], array[high]); + int pivot = high; + --high; + + while (low <= high) { + while (!(array[pivot] < array[low])) { + ++low; + if (low > high) + goto sort_loop_end; + } + while (!(array[high] < array[pivot])) { + --high; + if (low > high) + goto sort_loop_end; + } + qSwap(array[low], array[high]); + ++low; + --high; + } +sort_loop_end: + if (low != pivot) + qSwap(array[pivot], array[low]); + sort(array, low); + sort(array + low + 1, count - low - 1); +} + +//============================================================================// +// QFraction // +//============================================================================// + +// Fraction must be in the range [0, 1) +struct QFraction +{ + // Comparison operators must not be called on invalid fractions. + inline bool operator < (const QFraction &other) const; + inline bool operator == (const QFraction &other) const; + inline bool operator != (const QFraction &other) const {return !(*this == other);} + inline bool operator > (const QFraction &other) const {return other < *this;} + inline bool operator >= (const QFraction &other) const {return !(*this < other);} + inline bool operator <= (const QFraction &other) const {return !(*this > other);} + + inline bool isValid() const {return denominator != 0;} + + // numerator and denominator must not have common denominators. + quint64 numerator, denominator; +}; + +static inline quint64 gcd(quint64 x, quint64 y) +{ + while (y != 0) { + quint64 z = y; + y = x % y; + x = z; + } + return x; +} + +static inline int compare(quint64 a, quint64 b) +{ + return (a > b) - (a < b); +} + +// Compare a/b with c/d. +// Return negative if less, 0 if equal, positive if greater. +// a < b, c < d +static int qCompareFractions(quint64 a, quint64 b, quint64 c, quint64 d) +{ + const quint64 LIMIT = Q_UINT64_C(0x100000000); + for (;;) { + // If the products 'ad' and 'bc' fit into 64 bits, they can be directly compared. + if (b < LIMIT && d < LIMIT) + return compare(a * d, b * c); + + if (a == 0 || c == 0) + return compare(a, c); + + // a/b < c/d <=> d/c < b/a + quint64 b_div_a = b / a; + quint64 d_div_c = d / c; + if (b_div_a != d_div_c) + return compare(d_div_c, b_div_a); + + // floor(d/c) == floor(b/a) + // frac(d/c) < frac(b/a) ? + // frac(x/y) = (x%y)/y + d -= d_div_c * c; //d %= c; + b -= b_div_a * a; //b %= a; + qSwap(a, d); + qSwap(b, c); + } +} + +// Fraction must be in the range [0, 1) +// Assume input is valid. +static QFraction qFraction(quint64 n, quint64 d) { + QFraction result; + if (n == 0) { + result.numerator = 0; + result.denominator = 1; + } else { + quint64 g = gcd(n, d); + result.numerator = n / g; + result.denominator = d / g; + } + return result; +} + +inline bool QFraction::operator < (const QFraction &other) const +{ + return qCompareFractions(numerator, denominator, other.numerator, other.denominator) < 0; +} + +inline bool QFraction::operator == (const QFraction &other) const +{ + return numerator == other.numerator && denominator == other.denominator; +} + +//============================================================================// +// QPodPoint // +//============================================================================// + +struct QPodPoint +{ + inline bool operator < (const QPodPoint &other) const + { + if (y != other.y) + return y < other.y; + return x < other.x; + } + + inline bool operator > (const QPodPoint &other) const {return other < *this;} + inline bool operator <= (const QPodPoint &other) const {return !(*this > other);} + inline bool operator >= (const QPodPoint &other) const {return !(*this < other);} + inline bool operator == (const QPodPoint &other) const {return x == other.x && y == other.y;} + inline bool operator != (const QPodPoint &other) const {return x != other.x || y != other.y;} + + inline QPodPoint &operator += (const QPodPoint &other) {x += other.x; y += other.y; return *this;} + inline QPodPoint &operator -= (const QPodPoint &other) {x -= other.x; y -= other.y; return *this;} + inline QPodPoint operator + (const QPodPoint &other) const {QPodPoint result = {x + other.x, y + other.y}; return result;} + inline QPodPoint operator - (const QPodPoint &other) const {QPodPoint result = {x - other.x, y - other.y}; return result;} + + int x; + int y; +}; + +static inline qint64 qCross(const QPodPoint &u, const QPodPoint &v) +{ + return qint64(u.x) * qint64(v.y) - qint64(u.y) * qint64(v.x); +} + +static inline qint64 qDot(const QPodPoint &u, const QPodPoint &v) +{ + return qint64(u.x) * qint64(v.x) + qint64(u.y) * qint64(v.y); +} + +// Return positive value if 'p' is to the right of the line 'v1'->'v2', negative if left of the +// line and zero if exactly on the line. +// The returned value is the z-component of the qCross product between 'v2-v1' and 'p-v1', +// which is twice the signed area of the triangle 'p'->'v1'->'v2' (positive for CW order). +static inline qint64 qPointDistanceFromLine(const QPodPoint &p, const QPodPoint &v1, const QPodPoint &v2) +{ + return qCross(v2 - v1, p - v1); +} + +static inline bool qPointIsLeftOfLine(const QPodPoint &p, const QPodPoint &v1, const QPodPoint &v2) +{ + return qPointDistanceFromLine(p, v1, v2) < 0; +} + +// Return: +// -1 if u < v +// 0 if u == v +// 1 if u > v +static int comparePoints(const QPodPoint &u, const QPodPoint &v) +{ + if (u.y < v.y) + return -1; + if (u.y > v.y) + return 1; + if (u.x < v.x) + return -1; + if (u.x > v.x) + return 1; + return 0; +} + +//============================================================================// +// QIntersectionPoint // +//============================================================================// + +struct QIntersectionPoint +{ + inline bool isValid() const {return xOffset.isValid() && yOffset.isValid();} + QPodPoint round() const; + inline bool isAccurate() const {return xOffset.numerator == 0 && yOffset.numerator == 0;} + bool operator < (const QIntersectionPoint &other) const; + bool operator == (const QIntersectionPoint &other) const; + inline bool operator != (const QIntersectionPoint &other) const {return !(*this == other);} + inline bool operator > (const QIntersectionPoint &other) const {return other < *this;} + inline bool operator >= (const QIntersectionPoint &other) const {return !(*this < other);} + inline bool operator <= (const QIntersectionPoint &other) const {return !(*this > other);} + bool isOnLine(const QPodPoint &u, const QPodPoint &v) const; + + QPodPoint upperLeft; + QFraction xOffset; + QFraction yOffset; +}; + +static inline QIntersectionPoint qIntersectionPoint(const QPodPoint &point) +{ + // upperLeft = point, xOffset = 0/1, yOffset = 0/1. + QIntersectionPoint p = {{point.x, point.y}, {0, 1}, {0, 1}}; + return p; +} + +static inline QIntersectionPoint qIntersectionPoint(int x, int y) +{ + // upperLeft = (x, y), xOffset = 0/1, yOffset = 0/1. + QIntersectionPoint p = {{x, y}, {0, 1}, {0, 1}}; + return p; +} + +static QIntersectionPoint qIntersectionPoint(const QPodPoint &u1, const QPodPoint &u2, const QPodPoint &v1, const QPodPoint &v2) +{ + QIntersectionPoint result = {{0, 0}, {0, 0}, {0, 0}}; + + QPodPoint u = u2 - u1; + QPodPoint v = v2 - v1; + qint64 d1 = qCross(u, v1 - u1); + qint64 d2 = qCross(u, v2 - u1); + qint64 det = d2 - d1; + qint64 d3 = qCross(v, u1 - v1); + qint64 d4 = d3 - det; //qCross(v, u2 - v1); + + // Check that the math is correct. + Q_ASSERT(d4 == qCross(v, u2 - v1)); + + // The intersection point can be expressed as: + // v1 - v * d1/det + // v2 - v * d2/det + // u1 + u * d3/det + // u2 + u * d4/det + + // I'm only interested in lines that are crossing, so ignore parallel lines even if they overlap. + if (det == 0) + return result; + + if (det < 0) { + det = -det; + d1 = -d1; + d2 = -d2; + d3 = -d3; + d4 = -d4; + } + + // I'm only interested in lines intersecting at their interior, not at their end points. + // The lines intersect at their interior if and only if 'd1 < 0', 'd2 > 0', 'd3 < 0' and 'd4 > 0'. + if (d1 >= 0 || d2 <= 0 || d3 <= 0 || d4 >= 0) + return result; + + // Calculate the intersection point as follows: + // v1 - v * d1/det | v1 <= v2 (component-wise) + // v2 - v * d2/det | v2 < v1 (component-wise) + + // Assuming 21 bits per vector component. + // TODO: Make code path for 31 bits per vector component. + if (v.x >= 0) { + result.upperLeft.x = v1.x + (-v.x * d1) / det; + result.xOffset = qFraction(quint64(-v.x * d1) % quint64(det), quint64(det)); + } else { + result.upperLeft.x = v2.x + (-v.x * d2) / det; + result.xOffset = qFraction(quint64(-v.x * d2) % quint64(det), quint64(det)); + } + + if (v.y >= 0) { + result.upperLeft.y = v1.y + (-v.y * d1) / det; + result.yOffset = qFraction(quint64(-v.y * d1) % quint64(det), quint64(det)); + } else { + result.upperLeft.y = v2.y + (-v.y * d2) / det; + result.yOffset = qFraction(quint64(-v.y * d2) % quint64(det), quint64(det)); + } + + Q_ASSERT(result.xOffset.isValid()); + Q_ASSERT(result.yOffset.isValid()); + return result; +} + +QPodPoint QIntersectionPoint::round() const +{ + QPodPoint result = upperLeft; + if (2 * xOffset.numerator >= xOffset.denominator) + ++result.x; + if (2 * yOffset.numerator >= yOffset.denominator) + ++result.y; + return result; +} + +bool QIntersectionPoint::operator < (const QIntersectionPoint &other) const +{ + if (upperLeft.y != other.upperLeft.y) + return upperLeft.y < other.upperLeft.y; + if (yOffset != other.yOffset) + return yOffset < other.yOffset; + if (upperLeft.x != other.upperLeft.x) + return upperLeft.x < other.upperLeft.x; + return xOffset < other.xOffset; +} + +bool QIntersectionPoint::operator == (const QIntersectionPoint &other) const +{ + return upperLeft == other.upperLeft && xOffset == other.xOffset && yOffset == other.yOffset; +} + +// Returns true if this point is on the infinite line passing through 'u' and 'v'. +bool QIntersectionPoint::isOnLine(const QPodPoint &u, const QPodPoint &v) const +{ + // TODO: Make code path for coordinates with more than 21 bits. + const QPodPoint p = upperLeft - u; + const QPodPoint q = v - u; + bool isHorizontal = p.y == 0 && yOffset.numerator == 0; + bool isVertical = p.x == 0 && xOffset.numerator == 0; + if (isHorizontal && isVertical) + return true; + if (isHorizontal) + return q.y == 0; + if (q.y == 0) + return false; + if (isVertical) + return q.x == 0; + if (q.x == 0) + return false; + + // At this point, 'p+offset' and 'q' cannot lie on the x or y axis. + + if (((q.x < 0) == (q.y < 0)) != ((p.x < 0) == (p.y < 0))) + return false; // 'p + offset' and 'q' pass through different quadrants. + + // Move all coordinates into the first quadrant. + quint64 nx, ny; + if (p.x < 0) + nx = quint64(-p.x) * xOffset.denominator - xOffset.numerator; + else + nx = quint64(p.x) * xOffset.denominator + xOffset.numerator; + if (p.y < 0) + ny = quint64(-p.y) * yOffset.denominator - yOffset.numerator; + else + ny = quint64(p.y) * yOffset.denominator + yOffset.numerator; + + return qFraction(quint64(qAbs(q.x)) * xOffset.denominator, quint64(qAbs(q.y)) * yOffset.denominator) == qFraction(nx, ny); +} + +//============================================================================// +// QMaxHeap // +//============================================================================// + +template <class T> +class QMaxHeap +{ +public: + QMaxHeap() : m_data(0) {} + inline int size() const {return m_data.size();} + inline bool empty() const {return m_data.isEmpty();} + inline bool isEmpty() const {return m_data.isEmpty();} + void push(const T &x); + T pop(); + inline const T &top() const {return m_data.first();} +private: + static inline int parent(int i) {return (i - 1) / 2;} + static inline int left(int i) {return 2 * i + 1;} + static inline int right(int i) {return 2 * i + 2;} + + QDataBuffer<T> m_data; +}; + +template <class T> +void QMaxHeap<T>::push(const T &x) +{ + int current = m_data.size(); + int parent = QMaxHeap::parent(current); + m_data.add(x); + while (current != 0 && m_data.at(parent) < x) { + m_data.at(current) = m_data.at(parent); + current = parent; + parent = QMaxHeap::parent(current); + } + m_data.at(current) = x; +} + +template <class T> +T QMaxHeap<T>::pop() +{ + T result = m_data.first(); + T back = m_data.last(); + m_data.pop_back(); + if (!m_data.isEmpty()) { + int current = 0; + for (;;) { + int left = QMaxHeap::left(current); + int right = QMaxHeap::right(current); + if (left >= m_data.size()) + break; + int greater = left; + if (right < m_data.size() && m_data.at(left) < m_data.at(right)) + greater = right; + if (m_data.at(greater) < back) + break; + m_data.at(current) = m_data.at(greater); + current = greater; + } + m_data.at(current) = back; + } + return result; +} + +//============================================================================// +// QRBTree // +//============================================================================// + +template <class T> +struct QRBTree +{ + struct Node + { + inline Node() : parent(0), left(0), right(0), red(true) { } + inline ~Node() {if (left) delete left; if (right) delete right;} + T data; + Node *parent; + Node *left; + Node *right; + bool red; + }; + + inline QRBTree() : root(0), freeList(0) { } + inline ~QRBTree(); + + inline void clear(); + + void attachBefore(Node *parent, Node *child); + void attachAfter(Node *parent, Node *child); + + inline Node *front(Node *node) const; + inline Node *back(Node *node) const; + Node *next(Node *node) const; + Node *previous(Node *node) const; + + inline void deleteNode(Node *&node); + inline Node *newNode(); + + // Return 1 if 'left' comes after 'right', 0 if equal, and -1 otherwise. + // 'left' and 'right' cannot be null. + int order(Node *left, Node *right); + inline bool verify() const; + +private: + void rotateLeft(Node *node); + void rotateRight(Node *node); + void update(Node *node); + + inline void attachLeft(Node *parent, Node *child); + inline void attachRight(Node *parent, Node *child); + + int blackDepth(Node *top) const; + bool checkRedBlackProperty(Node *top) const; + + void swapNodes(Node *n1, Node *n2); + void detach(Node *node); + + // 'node' must be black. rebalance will reduce the depth of black nodes by one in the sibling tree. + void rebalance(Node *node); + +public: + Node *root; +private: + Node *freeList; +}; + +template <class T> +inline QRBTree<T>::~QRBTree() +{ + clear(); + while (freeList) { + // Avoid recursively calling the destructor, as this list may become large. + Node *next = freeList->right; + freeList->right = 0; + delete freeList; + freeList = next; + } +} + +template <class T> +inline void QRBTree<T>::clear() +{ + if (root) + delete root; + root = 0; +} + +template <class T> +void QRBTree<T>::rotateLeft(Node *node) +{ + // | | // + // N B // + // / \ / \ // + // A B ---> N D // + // / \ / \ // + // C D A C // + + Node *&ref = (node->parent ? (node == node->parent->left ? node->parent->left : node->parent->right) : root); + ref = node->right; + node->right->parent = node->parent; + + // : // + // N // + // / :| // + // A B // + // / \ // + // C D // + + node->right = ref->left; + if (ref->left) + ref->left->parent = node; + + // : | // + // N B // + // / \ : \ // + // A C D // + + ref->left = node; + node->parent = ref; + + // | // + // B // + // / \ // + // N D // + // / \ // + // A C // +} + +template <class T> +void QRBTree<T>::rotateRight(Node *node) +{ + // | | // + // N A // + // / \ / \ // + // A B ---> C N // + // / \ / \ // + // C D D B // + + Node *&ref = (node->parent ? (node == node->parent->left ? node->parent->left : node->parent->right) : root); + ref = node->left; + node->left->parent = node->parent; + + node->left = ref->right; + if (ref->right) + ref->right->parent = node; + + ref->right = node; + node->parent = ref; +} + +template <class T> +void QRBTree<T>::update(Node *node) // call this after inserting a node +{ + for (;;) { + Node *parent = node->parent; + + // if the node is the root, color it black + if (!parent) { + node->red = false; + return; + } + + // if the parent is black, the node can be left red + if (!parent->red) + return; + + // at this point, the parent is red and cannot be the root + Node *grandpa = parent->parent; + Q_ASSERT(grandpa); + + Node *uncle = (parent == grandpa->left ? grandpa->right : grandpa->left); + if (uncle && uncle->red) { + // grandpa's black, parent and uncle are red. + // let parent and uncle be black, grandpa red and recursively update grandpa. + Q_ASSERT(!grandpa->red); + parent->red = false; + uncle->red = false; + grandpa->red = true; + node = grandpa; + continue; + } + + // at this point, uncle is black + if (node == parent->right && parent == grandpa->left) + rotateLeft(node = parent); + else if (node == parent->left && parent == grandpa->right) + rotateRight(node = parent); + parent = node->parent; + + if (parent == grandpa->left) { + rotateRight(grandpa); + parent->red = false; + grandpa->red = true; + } else { + rotateLeft(grandpa); + parent->red = false; + grandpa->red = true; + } + return; + } +} + +template <class T> +inline void QRBTree<T>::attachLeft(Node *parent, Node *child) +{ + Q_ASSERT(!parent->left); + parent->left = child; + child->parent = parent; + update(child); +} + +template <class T> +inline void QRBTree<T>::attachRight(Node *parent, Node *child) +{ + Q_ASSERT(!parent->right); + parent->right = child; + child->parent = parent; + update(child); +} + +template <class T> +void QRBTree<T>::attachBefore(Node *parent, Node *child) +{ + if (!root) + update(root = child); + else if (!parent) + attachRight(back(root), child); + else if (parent->left) + attachRight(back(parent->left), child); + else + attachLeft(parent, child); +} + +template <class T> +void QRBTree<T>::attachAfter(Node *parent, Node *child) +{ + if (!root) + update(root = child); + else if (!parent) + attachLeft(front(root), child); + else if (parent->right) + attachLeft(front(parent->right), child); + else + attachRight(parent, child); +} + +template <class T> +void QRBTree<T>::swapNodes(Node *n1, Node *n2) +{ + // Since iterators must not be invalidated, it is not sufficient to only swap the data. + if (n1->parent == n2) { + n1->parent = n2->parent; + n2->parent = n1; + } else if (n2->parent == n1) { + n2->parent = n1->parent; + n1->parent = n2; + } else { + qSwap(n1->parent, n2->parent); + } + + qSwap(n1->left, n2->left); + qSwap(n1->right, n2->right); + qSwap(n1->red, n2->red); + + if (n1->parent) { + if (n1->parent->left == n2) + n1->parent->left = n1; + else + n1->parent->right = n1; + } else { + root = n1; + } + + if (n2->parent) { + if (n2->parent->left == n1) + n2->parent->left = n2; + else + n2->parent->right = n2; + } else { + root = n2; + } + + if (n1->left) + n1->left->parent = n1; + if (n1->right) + n1->right->parent = n1; + + if (n2->left) + n2->left->parent = n2; + if (n2->right) + n2->right->parent = n2; +} + +template <class T> +void QRBTree<T>::detach(Node *node) // call this before removing a node. +{ + if (node->right) + swapNodes(node, front(node->right)); + + Node *child = (node->left ? node->left : node->right); + + if (!node->red) { + if (child && child->red) + child->red = false; + else + rebalance(node); + } + + Node *&ref = (node->parent ? (node == node->parent->left ? node->parent->left : node->parent->right) : root); + ref = child; + if (child) + child->parent = node->parent; + node->left = node->right = node->parent = 0; +} + +// 'node' must be black. rebalance will reduce the depth of black nodes by one in the sibling tree. +template <class T> +void QRBTree<T>::rebalance(Node *node) +{ + Q_ASSERT(!node->red); + for (;;) { + if (!node->parent) + return; + + // at this point, node is not a parent, it is black, thus it must have a sibling. + Node *sibling = (node == node->parent->left ? node->parent->right : node->parent->left); + Q_ASSERT(sibling); + + if (sibling->red) { + sibling->red = false; + node->parent->red = true; + if (node == node->parent->left) + rotateLeft(node->parent); + else + rotateRight(node->parent); + sibling = (node == node->parent->left ? node->parent->right : node->parent->left); + Q_ASSERT(sibling); + } + + // at this point, the sibling is black. + Q_ASSERT(!sibling->red); + + if ((!sibling->left || !sibling->left->red) && (!sibling->right || !sibling->right->red)) { + bool parentWasRed = node->parent->red; + sibling->red = true; + node->parent->red = false; + if (parentWasRed) + return; + node = node->parent; + continue; + } + + // at this point, at least one of the sibling's children is red. + + if (node == node->parent->left) { + if (!sibling->right || !sibling->right->red) { + Q_ASSERT(sibling->left); + sibling->red = true; + sibling->left->red = false; + rotateRight(sibling); + + sibling = sibling->parent; + Q_ASSERT(sibling); + } + sibling->red = node->parent->red; + node->parent->red = false; + + Q_ASSERT(sibling->right->red); + sibling->right->red = false; + rotateLeft(node->parent); + } else { + if (!sibling->left || !sibling->left->red) { + Q_ASSERT(sibling->right); + sibling->red = true; + sibling->right->red = false; + rotateLeft(sibling); + + sibling = sibling->parent; + Q_ASSERT(sibling); + } + sibling->red = node->parent->red; + node->parent->red = false; + + Q_ASSERT(sibling->left->red); + sibling->left->red = false; + rotateRight(node->parent); + } + return; + } +} + +template <class T> +inline typename QRBTree<T>::Node *QRBTree<T>::front(Node *node) const +{ + while (node->left) + node = node->left; + return node; +} + +template <class T> +inline typename QRBTree<T>::Node *QRBTree<T>::back(Node *node) const +{ + while (node->right) + node = node->right; + return node; +} + +template <class T> +typename QRBTree<T>::Node *QRBTree<T>::next(Node *node) const +{ + if (node->right) + return front(node->right); + while (node->parent && node == node->parent->right) + node = node->parent; + return node->parent; +} + +template <class T> +typename QRBTree<T>::Node *QRBTree<T>::previous(Node *node) const +{ + if (node->left) + return back(node->left); + while (node->parent && node == node->parent->left) + node = node->parent; + return node->parent; +} + +template <class T> +int QRBTree<T>::blackDepth(Node *top) const +{ + if (!top) + return 0; + int leftDepth = blackDepth(top->left); + int rightDepth = blackDepth(top->right); + if (leftDepth != rightDepth) + return -1; + if (!top->red) + ++leftDepth; + return leftDepth; +} + +template <class T> +bool QRBTree<T>::checkRedBlackProperty(Node *top) const +{ + if (!top) + return true; + if (top->left && !checkRedBlackProperty(top->left)) + return false; + if (top->right && !checkRedBlackProperty(top->right)) + return false; + return !(top->red && ((top->left && top->left->red) || (top->right && top->right->red))); +} + +template <class T> +inline bool QRBTree<T>::verify() const +{ + return checkRedBlackProperty(root) && blackDepth(root) != -1; +} + +template <class T> +inline void QRBTree<T>::deleteNode(Node *&node) +{ + Q_ASSERT(node); + detach(node); + node->right = freeList; + freeList = node; + node = 0; +} + +template <class T> +inline typename QRBTree<T>::Node *QRBTree<T>::newNode() +{ + if (freeList) { + Node *node = freeList; + freeList = freeList->right; + node->parent = node->left = node->right = 0; + node->red = true; + return node; + } + return new Node; +} + +// Return 1 if 'left' comes after 'right', 0 if equal, and -1 otherwise. +// 'left' and 'right' cannot be null. +template <class T> +int QRBTree<T>::order(Node *left, Node *right) +{ + Q_ASSERT(left && right); + if (left == right) + return 0; + + QVector<Node *> leftAncestors; + QVector<Node *> rightAncestors; + while (left) { + leftAncestors.push_back(left); + left = left->parent; + } + while (right) { + rightAncestors.push_back(right); + right = right->parent; + } + Q_ASSERT(leftAncestors.back() == root && rightAncestors.back() == root); + + while (!leftAncestors.empty() && !rightAncestors.empty() && leftAncestors.back() == rightAncestors.back()) { + leftAncestors.pop_back(); + rightAncestors.pop_back(); + } + + if (!leftAncestors.empty()) + return (leftAncestors.back() == leftAncestors.back()->parent->left ? -1 : 1); + + if (!rightAncestors.empty()) + return (rightAncestors.back() == rightAncestors.back()->parent->right ? -1 : 1); + + // The code should never reach this point. + Q_ASSERT(!leftAncestors.empty() || !rightAncestors.empty()); + return 0; +} + +//============================================================================// +// QInt64Hash // +//============================================================================// + +// Copied from qhash.cpp +static const uchar prime_deltas[] = { + 0, 0, 1, 3, 1, 5, 3, 3, 1, 9, 7, 5, 3, 9, 25, 3, + 1, 21, 3, 21, 7, 15, 9, 5, 3, 29, 15, 0, 0, 0, 0, 0 +}; + +// Copied from qhash.cpp +static inline int primeForNumBits(int numBits) +{ + return (1 << numBits) + prime_deltas[numBits]; +} + +static inline int primeForCount(int count) +{ + int low = 0; + int high = 32; + for (int i = 0; i < 5; ++i) { + int mid = (high + low) / 2; + if (count >= 1 << mid) + low = mid; + else + high = mid; + } + return primeForNumBits(high); +} + +// Hash set of quint64s. Elements cannot be removed without clearing the +// entire set. A value of -1 is used to mark unused entries. +class QInt64Set +{ +public: + inline QInt64Set(int capacity = 64); + inline ~QInt64Set() {if (m_array) delete[] m_array;} + inline bool isValid() const {return m_array;} + void insert(quint64 key); + bool contains(quint64 key) const; + inline void clear(); +private: + bool rehash(int capacity); + + static const quint64 UNUSED; + + quint64 *m_array; + int m_capacity; + int m_count; +}; + +const quint64 QInt64Set::UNUSED = quint64(-1); + +inline QInt64Set::QInt64Set(int capacity) +{ + m_capacity = primeForCount(capacity); + m_array = new quint64[m_capacity]; + if (m_array) + clear(); + else + m_capacity = 0; +} + +bool QInt64Set::rehash(int capacity) +{ + quint64 *oldArray = m_array; + int oldCapacity = m_capacity; + + m_capacity = capacity; + m_array = new quint64[m_capacity]; + if (m_array) { + clear(); + if (oldArray) { + for (int i = 0; i < oldCapacity; ++i) { + if (oldArray[i] != UNUSED) + insert(oldArray[i]); + } + delete[] oldArray; + } + return true; + } else { + m_capacity = oldCapacity; + m_array = oldArray; + return false; + } +} + +void QInt64Set::insert(quint64 key) +{ + if (m_count > 3 * m_capacity / 4) + rehash(primeForCount(2 * m_capacity)); + Q_ASSERT_X(m_array, "QInt64Hash<T>::insert", "Hash set not allocated."); + int index = int(key % m_capacity); + for (int i = 0; i < m_capacity; ++i) { + index += i; + if (index >= m_capacity) + index -= m_capacity; + if (m_array[index] == key) + return; + if (m_array[index] == UNUSED) { + ++m_count; + m_array[index] = key; + return; + } + } + Q_ASSERT_X(0, "QInt64Hash<T>::insert", "Hash set full."); +} + +bool QInt64Set::contains(quint64 key) const +{ + Q_ASSERT_X(m_array, "QInt64Hash<T>::contains", "Hash set not allocated."); + int index = int(key % m_capacity); + for (int i = 0; i < m_capacity; ++i) { + index += i; + if (index >= m_capacity) + index -= m_capacity; + if (m_array[index] == key) + return true; + if (m_array[index] == UNUSED) + return false; + } + return false; +} + +inline void QInt64Set::clear() +{ + Q_ASSERT_X(m_array, "QInt64Hash<T>::clear", "Hash set not allocated."); + for (int i = 0; i < m_capacity; ++i) + m_array[i] = UNUSED; + m_count = 0; +} + +//============================================================================// +// QRingBuffer // +//============================================================================// + +// T must be POD. +template <class T> +class QRingBuffer +{ +public: + inline QRingBuffer() : m_array(0), m_head(0), m_size(0), m_capacity(0) { } + inline ~QRingBuffer() {if (m_array) delete[] m_array;} + bool reallocate(int capacity); + inline const T &head() const {Q_ASSERT(m_size > 0); return m_array[m_head];} + inline const T &dequeue(); + inline void enqueue(const T &x); + inline bool isEmpty() const {return m_size == 0;} +private: + T *m_array; + int m_head; + int m_size; + int m_capacity; +}; + +template <class T> +bool QRingBuffer<T>::reallocate(int capacity) +{ + T *oldArray = m_array; + m_array = new T[capacity]; + if (m_array) { + if (oldArray) { + if (m_head + m_size > m_capacity) { + memcpy(m_array, oldArray + m_head, (m_capacity - m_head) * sizeof(T)); + memcpy(m_array + (m_capacity - m_head), oldArray, (m_head + m_size - m_capacity) * sizeof(T)); + } else { + memcpy(m_array, oldArray + m_head, m_size * sizeof(T)); + } + delete[] oldArray; + } + m_capacity = capacity; + m_head = 0; + return true; + } else { + m_array = oldArray; + return false; + } +} + +template <class T> +inline const T &QRingBuffer<T>::dequeue() +{ + Q_ASSERT(m_size > 0); + Q_ASSERT(m_array); + Q_ASSERT(m_capacity >= m_size); + int index = m_head; + if (++m_head >= m_capacity) + m_head -= m_capacity; + --m_size; + return m_array[index]; +} + +template <class T> +inline void QRingBuffer<T>::enqueue(const T &x) +{ + if (m_size == m_capacity) + reallocate(qMax(2 * m_capacity, 64)); + int index = m_head + m_size; + if (index >= m_capacity) + index -= m_capacity; + m_array[index] = x; + ++m_size; +} + +//============================================================================// +// QTriangulator // +//============================================================================// + +class QTriangulator +{ +public: + typedef QVarLengthArray<int, 6> ShortArray; + + //================================// + // QTriangulator::ComplexToSimple // + //================================// + friend class ComplexToSimple; + class ComplexToSimple + { + public: + inline ComplexToSimple(QTriangulator *parent) : m_parent(parent), + m_edges(0), m_events(0), m_splits(0) { } + void decompose(); + private: + struct Edge + { + inline int &upper() {return pointingUp ? to : from;} + inline int &lower() {return pointingUp ? from : to;} + inline int upper() const {return pointingUp ? to : from;} + inline int lower() const {return pointingUp ? from : to;} + + QRBTree<int>::Node *node; + int from, to; // vertex + int next, previous; // edge + int winding; + bool mayIntersect; + bool pointingUp, originallyPointingUp; + }; + + friend class CompareEdges; + class CompareEdges + { + public: + inline CompareEdges(ComplexToSimple *parent) : m_parent(parent) { } + bool operator () (int i, int j) const; + private: + ComplexToSimple *m_parent; + }; + + struct Intersection + { + bool operator < (const Intersection &other) const {return other.intersectionPoint < intersectionPoint;} + + QIntersectionPoint intersectionPoint; + int vertex; + int leftEdge; + int rightEdge; + }; + + struct Split + { + int vertex; + int edge; + bool accurate; + }; + + struct Event + { + enum Type {Upper, Lower}; + inline bool operator < (const Event &other) const; + + QPodPoint point; + Type type; + int edge; + }; + +#ifdef Q_TRIANGULATOR_DEBUG + friend class DebugDialog; + friend class QTriangulator; + class DebugDialog : public QDialog + { + public: + DebugDialog(ComplexToSimple *parent, int currentVertex); + protected: + void paintEvent(QPaintEvent *); + void wheelEvent(QWheelEvent *); + void mouseMoveEvent(QMouseEvent *); + void mousePressEvent(QMouseEvent *); + private: + ComplexToSimple *m_parent; + QRectF m_window; + QPoint m_lastMousePos; + int m_vertex; + }; +#endif + + void initEdges(); + bool calculateIntersection(int left, int right); + bool edgeIsLeftOfEdge(int leftEdgeIndex, int rightEdgeIndex) const; + QRBTree<int>::Node *searchEdgeLeftOf(int edgeIndex) const; + QRBTree<int>::Node *searchEdgeLeftOf(int edgeIndex, QRBTree<int>::Node *after) const; + QPair<QRBTree<int>::Node *, QRBTree<int>::Node *> bounds(const QPodPoint &point) const; + QPair<QRBTree<int>::Node *, QRBTree<int>::Node *> outerBounds(const QPodPoint &point) const; + void splitEdgeListRange(QRBTree<int>::Node *leftmost, QRBTree<int>::Node *rightmost, int vertex, const QIntersectionPoint &intersectionPoint); + void reorderEdgeListRange(QRBTree<int>::Node *leftmost, QRBTree<int>::Node *rightmost); + void sortEdgeList(const QPodPoint eventPoint); + void fillPriorityQueue(); + void calculateIntersections(); + int splitEdge(int splitIndex); + bool splitEdgesAtIntersections(); + void insertEdgeIntoVectorIfWanted(ShortArray &orderedEdges, int i); + void removeUnwantedEdgesAndConnect(); + void removeUnusedPoints(); + + QTriangulator *m_parent; + QDataBuffer<Edge> m_edges; + QRBTree<int> m_edgeList; + QDataBuffer<Event> m_events; + QDataBuffer<Split> m_splits; + QMaxHeap<Intersection> m_topIntersection; + QInt64Set m_processedEdgePairs; + int m_initialPointCount; + }; +#ifdef Q_TRIANGULATOR_DEBUG + friend class ComplexToSimple::DebugDialog; +#endif + + //=================================// + // QTriangulator::SimpleToMonotone // + //=================================// + friend class SimpleToMonotone; + class SimpleToMonotone + { + public: + inline SimpleToMonotone(QTriangulator *parent) : m_parent(parent), m_edges(0), m_upperVertex(0) { } + void decompose(); + private: + enum VertexType {MergeVertex, EndVertex, RegularVertex, StartVertex, SplitVertex}; + + struct Edge + { + QRBTree<int>::Node *node; + int helper, twin, next, previous; + quint32 from, to; + VertexType type; + bool pointingUp; + int upper() const {return (pointingUp ? to : from);} + int lower() const {return (pointingUp ? from : to);} + }; + + friend class CompareVertices; + class CompareVertices + { + public: + CompareVertices(SimpleToMonotone *parent) : m_parent(parent) { } + bool operator () (int i, int j) const; + private: + SimpleToMonotone *m_parent; + }; + + void setupDataStructures(); + void removeZeroLengthEdges(); + void fillPriorityQueue(); + bool edgeIsLeftOfEdge(int leftEdgeIndex, int rightEdgeIndex) const; + // Returns the rightmost edge not to the right of the given edge. + QRBTree<int>::Node *searchEdgeLeftOfEdge(int edgeIndex) const; + // Returns the rightmost edge left of the given point. + QRBTree<int>::Node *searchEdgeLeftOfPoint(int pointIndex) const; + void classifyVertex(int i); + void classifyVertices(); + bool pointIsInSector(const QPodPoint &p, const QPodPoint &v1, const QPodPoint &v2, const QPodPoint &v3); + bool pointIsInSector(int vertex, int sector); + int findSector(int edge, int vertex); + void createDiagonal(int lower, int upper); + void monotoneDecomposition(); + + QTriangulator *m_parent; + QRBTree<int> m_edgeList; + QDataBuffer<Edge> m_edges; + QDataBuffer<int> m_upperVertex; + bool m_clockwiseOrder; + }; + + //====================================// + // QTriangulator::MonotoneToTriangles // + //====================================// + friend class MonotoneToTriangles; + class MonotoneToTriangles + { + public: + inline MonotoneToTriangles(QTriangulator *parent) : m_parent(parent) { } + void decompose(); + private: + inline quint32 indices(int index) const {return m_parent->m_indices.at(index + m_first);} + inline int next(int index) const {return (index + 1) % m_length;} + inline int previous(int index) const {return (index + m_length - 1) % m_length;} + inline bool less(int i, int j) const {return m_parent->m_vertices.at(indices(i)) < m_parent->m_vertices.at(indices(j));} + inline bool leftOfEdge(int i, int j, int k) const + { + return qPointIsLeftOfLine(m_parent->m_vertices.at(indices(i)), + m_parent->m_vertices.at(indices(j)), m_parent->m_vertices.at(indices(k))); + } + + QTriangulator *m_parent; + int m_first; + int m_length; + }; + + inline QTriangulator() : m_vertices(0) { } + + // Call this only once. + void initialize(const qreal *polygon, int count, uint hint, const QTransform &matrix); + // Call this only once. + void initialize(const QVectorPath &path, const QTransform &matrix, qreal lod); + // Call this only once. + void initialize(const QPainterPath &path, const QTransform &matrix, qreal lod); + // Call either triangulate() or polyline() only once. + QTriangleSet triangulate(); + QPolylineSet polyline(); +private: + QDataBuffer<QPodPoint> m_vertices; + QVector<quint32> m_indices; + uint m_hint; +}; + +//============================================================================// +// QTriangulator // +//============================================================================// + +QTriangleSet QTriangulator::triangulate() +{ + for (int i = 0; i < m_vertices.size(); ++i) { + Q_ASSERT(qAbs(m_vertices.at(i).x) < (1 << 21)); + Q_ASSERT(qAbs(m_vertices.at(i).y) < (1 << 21)); + } + + if (!(m_hint & (QVectorPath::OddEvenFill | QVectorPath::WindingFill))) + m_hint |= QVectorPath::OddEvenFill; + + if (m_hint & QVectorPath::NonConvexShapeMask) { + ComplexToSimple c2s(this); + c2s.decompose(); + SimpleToMonotone s2m(this); + s2m.decompose(); + } + MonotoneToTriangles m2t(this); + m2t.decompose(); + + QTriangleSet result; + result.indices = m_indices; + result.vertices.resize(2 * m_vertices.size()); + for (int i = 0; i < m_vertices.size(); ++i) { + result.vertices[2 * i + 0] = qreal(m_vertices.at(i).x) / Q_FIXED_POINT_SCALE; + result.vertices[2 * i + 1] = qreal(m_vertices.at(i).y) / Q_FIXED_POINT_SCALE; + } + return result; +} + +QPolylineSet QTriangulator::polyline() +{ + QPolylineSet result; + result.indices = m_indices; + result.vertices.resize(2 * m_vertices.size()); + for (int i = 0; i < m_vertices.size(); ++i) { + result.vertices[2 * i + 0] = qreal(m_vertices.at(i).x) / Q_FIXED_POINT_SCALE; + result.vertices[2 * i + 1] = qreal(m_vertices.at(i).y) / Q_FIXED_POINT_SCALE; + } + return result; +} + +void QTriangulator::initialize(const qreal *polygon, int count, uint hint, const QTransform &matrix) +{ + m_hint = hint; + m_vertices.resize(count); + m_indices.resize(count + 1); + for (int i = 0; i < count; ++i) { + qreal x, y; + matrix.map(polygon[2 * i + 0], polygon[2 * i + 1], &x, &y); + m_vertices.at(i).x = qRound(x * Q_FIXED_POINT_SCALE); + m_vertices.at(i).y = qRound(y * Q_FIXED_POINT_SCALE); + m_indices[i] = i; + } + m_indices[count] = Q_TRIANGULATE_END_OF_POLYGON; +} + +void QTriangulator::initialize(const QVectorPath &path, const QTransform &matrix, qreal lod) +{ + m_hint = path.hints(); + // Curved paths will be converted to complex polygons. + m_hint &= ~QVectorPath::CurvedShapeMask; + + const qreal *p = path.points(); + const QPainterPath::ElementType *e = path.elements(); + if (e) { + for (int i = 0; i < path.elementCount(); ++i, ++e, p += 2) { + switch (*e) { + case QPainterPath::MoveToElement: + if (!m_indices.isEmpty()) + m_indices.push_back(Q_TRIANGULATE_END_OF_POLYGON); + // Fall through. + case QPainterPath::LineToElement: + m_indices.push_back(quint32(m_vertices.size())); + m_vertices.resize(m_vertices.size() + 1); + qreal x, y; + matrix.map(p[0], p[1], &x, &y); + m_vertices.last().x = qRound(x * Q_FIXED_POINT_SCALE); + m_vertices.last().y = qRound(y * Q_FIXED_POINT_SCALE); + break; + case QPainterPath::CurveToElement: + { + qreal pts[8]; + for (int i = 0; i < 4; ++i) + matrix.map(p[2 * i - 2], p[2 * i - 1], &pts[2 * i + 0], &pts[2 * i + 1]); + for (int i = 0; i < 8; ++i) + pts[i] *= lod; + QBezier bezier = QBezier::fromPoints(QPointF(pts[0], pts[1]), QPointF(pts[2], pts[3]), QPointF(pts[4], pts[5]), QPointF(pts[6], pts[7])); + QPolygonF poly = bezier.toPolygon(); + // Skip first point, it already exists in 'm_vertices'. + for (int j = 1; j < poly.size(); ++j) { + m_indices.push_back(quint32(m_vertices.size())); + m_vertices.resize(m_vertices.size() + 1); + m_vertices.last().x = qRound(poly.at(j).x() * Q_FIXED_POINT_SCALE / lod); + m_vertices.last().y = qRound(poly.at(j).y() * Q_FIXED_POINT_SCALE / lod); + } + } + i += 2; + e += 2; + p += 4; + break; + default: + Q_ASSERT_X(0, "QTriangulator::triangulate", "Unexpected element type."); + break; + } + } + } else { + for (int i = 0; i < path.elementCount(); ++i, p += 2) { + m_indices.push_back(quint32(m_vertices.size())); + m_vertices.resize(m_vertices.size() + 1); + qreal x, y; + matrix.map(p[0], p[1], &x, &y); + m_vertices.last().x = qRound(x * Q_FIXED_POINT_SCALE); + m_vertices.last().y = qRound(y * Q_FIXED_POINT_SCALE); + } + } + m_indices.push_back(Q_TRIANGULATE_END_OF_POLYGON); +} + +void QTriangulator::initialize(const QPainterPath &path, const QTransform &matrix, qreal lod) +{ + initialize(qtVectorPathForPath(path), matrix, lod); +} + +//============================================================================// +// QTriangulator::ComplexToSimple // +//============================================================================// + +void QTriangulator::ComplexToSimple::decompose() +{ + m_initialPointCount = m_parent->m_vertices.size(); + initEdges(); + do { + calculateIntersections(); + } while (splitEdgesAtIntersections()); + + removeUnwantedEdgesAndConnect(); + removeUnusedPoints(); + + m_parent->m_indices.clear(); + QBitArray processed(m_edges.size(), false); + for (int first = 0; first < m_edges.size(); ++first) { + // If already processed, or if unused path, skip. + if (processed.at(first) || m_edges.at(first).next == -1) + continue; + + int i = first; + do { + Q_ASSERT(!processed.at(i)); + Q_ASSERT(m_edges.at(m_edges.at(i).next).previous == i); + m_parent->m_indices.push_back(m_edges.at(i).from); + processed.setBit(i); + i = m_edges.at(i).next; // CCW order + } while (i != first); + m_parent->m_indices.push_back(Q_TRIANGULATE_END_OF_POLYGON); + } +} + +void QTriangulator::ComplexToSimple::initEdges() +{ + // Initialize edge structure. + // 'next' and 'previous' are not being initialized at this point. + int first = 0; + for (int i = 0; i < m_parent->m_indices.size(); ++i) { + if (m_parent->m_indices.at(i) == Q_TRIANGULATE_END_OF_POLYGON) { + if (m_edges.size() != first) + m_edges.last().to = m_edges.at(first).from; + first = m_edges.size(); + } else { + Q_ASSERT(i + 1 < m_parent->m_indices.size()); + // {node, from, to, next, previous, winding, mayIntersect, pointingUp, originallyPointingUp} + Edge edge = {0, m_parent->m_indices.at(i), m_parent->m_indices.at(i + 1), -1, -1, 0, true, false, false}; + m_edges.add(edge); + } + } + if (first != m_edges.size()) + m_edges.last().to = m_edges.at(first).from; + for (int i = 0; i < m_edges.size(); ++i) { + m_edges.at(i).originallyPointingUp = m_edges.at(i).pointingUp = + m_parent->m_vertices.at(m_edges.at(i).to) < m_parent->m_vertices.at(m_edges.at(i).from); + } +} + +// Return true if new intersection was found +bool QTriangulator::ComplexToSimple::calculateIntersection(int left, int right) +{ + const Edge &e1 = m_edges.at(left); + const Edge &e2 = m_edges.at(right); + + const QPodPoint &u1 = m_parent->m_vertices.at(e1.from); + const QPodPoint &u2 = m_parent->m_vertices.at(e1.to); + const QPodPoint &v1 = m_parent->m_vertices.at(e2.from); + const QPodPoint &v2 = m_parent->m_vertices.at(e2.to); + if (qMax(u1.x, u2.x) <= qMin(v1.x, v2.x)) + return false; + + quint64 key = (left > right ? (quint64(right) << 32) | quint64(left) : (quint64(left) << 32) | quint64(right)); + if (m_processedEdgePairs.contains(key)) + return false; + m_processedEdgePairs.insert(key); + + Intersection intersection; + intersection.leftEdge = left; + intersection.rightEdge = right; + intersection.intersectionPoint = qIntersectionPoint(u1, u2, v1, v2); + + if (!intersection.intersectionPoint.isValid()) + return false; + + Q_ASSERT(intersection.intersectionPoint.isOnLine(u1, u2)); + Q_ASSERT(intersection.intersectionPoint.isOnLine(v1, v2)); + + intersection.vertex = m_parent->m_vertices.size(); + m_topIntersection.push(intersection); + m_parent->m_vertices.add(intersection.intersectionPoint.round()); + return true; +} + +bool QTriangulator::ComplexToSimple::edgeIsLeftOfEdge(int leftEdgeIndex, int rightEdgeIndex) const +{ + const Edge &leftEdge = m_edges.at(leftEdgeIndex); + const Edge &rightEdge = m_edges.at(rightEdgeIndex); + const QPodPoint &u = m_parent->m_vertices.at(rightEdge.upper()); + const QPodPoint &l = m_parent->m_vertices.at(rightEdge.lower()); + const QPodPoint &upper = m_parent->m_vertices.at(leftEdge.upper()); + if (upper.x < qMin(l.x, u.x)) + return true; + if (upper.x > qMax(l.x, u.x)) + return false; + qint64 d = qPointDistanceFromLine(upper, l, u); + // d < 0: left, d > 0: right, d == 0: on top + if (d == 0) + d = qPointDistanceFromLine(m_parent->m_vertices.at(leftEdge.lower()), l, u); + return d < 0; +} + +QRBTree<int>::Node *QTriangulator::ComplexToSimple::searchEdgeLeftOf(int edgeIndex) const +{ + QRBTree<int>::Node *current = m_edgeList.root; + QRBTree<int>::Node *result = 0; + while (current) { + if (edgeIsLeftOfEdge(edgeIndex, current->data)) { + current = current->left; + } else { + result = current; + current = current->right; + } + } + return result; +} + +QRBTree<int>::Node *QTriangulator::ComplexToSimple::searchEdgeLeftOf(int edgeIndex, QRBTree<int>::Node *after) const +{ + if (!m_edgeList.root) + return after; + QRBTree<int>::Node *result = after; + QRBTree<int>::Node *current = (after ? m_edgeList.next(after) : m_edgeList.front(m_edgeList.root)); + while (current) { + if (edgeIsLeftOfEdge(edgeIndex, current->data)) + return result; + result = current; + current = m_edgeList.next(current); + } + return result; +} + +QPair<QRBTree<int>::Node *, QRBTree<int>::Node *> QTriangulator::ComplexToSimple::bounds(const QPodPoint &point) const +{ + QRBTree<int>::Node *current = m_edgeList.root; + QPair<QRBTree<int>::Node *, QRBTree<int>::Node *> result(0, 0); + while (current) { + const QPodPoint &v1 = m_parent->m_vertices.at(m_edges.at(current->data).lower()); + const QPodPoint &v2 = m_parent->m_vertices.at(m_edges.at(current->data).upper()); + qint64 d = qPointDistanceFromLine(point, v1, v2); + if (d == 0) { + result.first = result.second = current; + break; + } + current = (d < 0 ? current->left : current->right); + } + if (current == 0) + return result; + + current = result.first->left; + while (current) { + const QPodPoint &v1 = m_parent->m_vertices.at(m_edges.at(current->data).lower()); + const QPodPoint &v2 = m_parent->m_vertices.at(m_edges.at(current->data).upper()); + qint64 d = qPointDistanceFromLine(point, v1, v2); + Q_ASSERT(d >= 0); + if (d == 0) { + result.first = current; + current = current->left; + } else { + current = current->right; + } + } + + current = result.second->right; + while (current) { + const QPodPoint &v1 = m_parent->m_vertices.at(m_edges.at(current->data).lower()); + const QPodPoint &v2 = m_parent->m_vertices.at(m_edges.at(current->data).upper()); + qint64 d = qPointDistanceFromLine(point, v1, v2); + Q_ASSERT(d <= 0); + if (d == 0) { + result.second = current; + current = current->right; + } else { + current = current->left; + } + } + + return result; +} + +QPair<QRBTree<int>::Node *, QRBTree<int>::Node *> QTriangulator::ComplexToSimple::outerBounds(const QPodPoint &point) const +{ + QRBTree<int>::Node *current = m_edgeList.root; + QPair<QRBTree<int>::Node *, QRBTree<int>::Node *> result(0, 0); + + while (current) { + const QPodPoint &v1 = m_parent->m_vertices.at(m_edges.at(current->data).lower()); + const QPodPoint &v2 = m_parent->m_vertices.at(m_edges.at(current->data).upper()); + qint64 d = qPointDistanceFromLine(point, v1, v2); + if (d == 0) + break; + if (d < 0) { + result.second = current; + current = current->left; + } else { + result.first = current; + current = current->right; + } + } + + if (!current) + return result; + + QRBTree<int>::Node *mid = current; + + current = mid->left; + while (current) { + const QPodPoint &v1 = m_parent->m_vertices.at(m_edges.at(current->data).lower()); + const QPodPoint &v2 = m_parent->m_vertices.at(m_edges.at(current->data).upper()); + qint64 d = qPointDistanceFromLine(point, v1, v2); + Q_ASSERT(d >= 0); + if (d == 0) { + current = current->left; + } else { + result.first = current; + current = current->right; + } + } + + current = mid->right; + while (current) { + const QPodPoint &v1 = m_parent->m_vertices.at(m_edges.at(current->data).lower()); + const QPodPoint &v2 = m_parent->m_vertices.at(m_edges.at(current->data).upper()); + qint64 d = qPointDistanceFromLine(point, v1, v2); + Q_ASSERT(d <= 0); + if (d == 0) { + current = current->right; + } else { + result.second = current; + current = current->left; + } + } + + return result; +} + +void QTriangulator::ComplexToSimple::splitEdgeListRange(QRBTree<int>::Node *leftmost, QRBTree<int>::Node *rightmost, int vertex, const QIntersectionPoint &intersectionPoint) +{ + Q_ASSERT(leftmost && rightmost); + + // Split. + for (;;) { + const QPodPoint &u = m_parent->m_vertices.at(m_edges.at(leftmost->data).from); + const QPodPoint &v = m_parent->m_vertices.at(m_edges.at(leftmost->data).to); + Q_ASSERT(intersectionPoint.isOnLine(u, v)); + const Split split = {vertex, leftmost->data, intersectionPoint.isAccurate()}; + if (intersectionPoint.xOffset.numerator != 0 || intersectionPoint.yOffset.numerator != 0 || (intersectionPoint.upperLeft != u && intersectionPoint.upperLeft != v)) + m_splits.add(split); + if (leftmost == rightmost) + break; + leftmost = m_edgeList.next(leftmost); + } +} + + +void QTriangulator::ComplexToSimple::reorderEdgeListRange(QRBTree<int>::Node *leftmost, QRBTree<int>::Node *rightmost) +{ + Q_ASSERT(leftmost && rightmost); + + QRBTree<int>::Node *storeLeftmost = leftmost; + QRBTree<int>::Node *storeRightmost = rightmost; + + // Reorder. + while (leftmost != rightmost) { + Edge &left = m_edges.at(leftmost->data); + Edge &right = m_edges.at(rightmost->data); + qSwap(left.node, right.node); + qSwap(leftmost->data, rightmost->data); + leftmost = m_edgeList.next(leftmost); + if (leftmost == rightmost) + break; + rightmost = m_edgeList.previous(rightmost); + } + + rightmost = m_edgeList.next(storeRightmost); + leftmost = m_edgeList.previous(storeLeftmost); + if (leftmost) + calculateIntersection(leftmost->data, storeLeftmost->data); + if (rightmost) + calculateIntersection(storeRightmost->data, rightmost->data); +} + +void QTriangulator::ComplexToSimple::sortEdgeList(const QPodPoint eventPoint) +{ + QIntersectionPoint eventPoint2 = qIntersectionPoint(eventPoint); + while (!m_topIntersection.isEmpty() && m_topIntersection.top().intersectionPoint < eventPoint2) { + Intersection intersection = m_topIntersection.pop(); + + QIntersectionPoint currentIntersectionPoint = intersection.intersectionPoint; + int currentVertex = intersection.vertex; + + QRBTree<int>::Node *leftmost = m_edges.at(intersection.leftEdge).node; + QRBTree<int>::Node *rightmost = m_edges.at(intersection.rightEdge).node; + + for (;;) { + QRBTree<int>::Node *previous = m_edgeList.previous(leftmost); + if (!previous) + break; + const Edge &edge = m_edges.at(previous->data); + const QPodPoint &u = m_parent->m_vertices.at(edge.from); + const QPodPoint &v = m_parent->m_vertices.at(edge.to); + if (!currentIntersectionPoint.isOnLine(u, v)) { + Q_ASSERT(!currentIntersectionPoint.isAccurate() || qCross(currentIntersectionPoint.upperLeft - u, v - u) != 0); + break; + } + leftmost = previous; + } + + for (;;) { + QRBTree<int>::Node *next = m_edgeList.next(rightmost); + if (!next) + break; + const Edge &edge = m_edges.at(next->data); + const QPodPoint &u = m_parent->m_vertices.at(edge.from); + const QPodPoint &v = m_parent->m_vertices.at(edge.to); + if (!currentIntersectionPoint.isOnLine(u, v)) { + Q_ASSERT(!currentIntersectionPoint.isAccurate() || qCross(currentIntersectionPoint.upperLeft - u, v - u) != 0); + break; + } + rightmost = next; + } + + Q_ASSERT(leftmost && rightmost); + splitEdgeListRange(leftmost, rightmost, currentVertex, currentIntersectionPoint); + reorderEdgeListRange(leftmost, rightmost); + + while (!m_topIntersection.isEmpty() && m_topIntersection.top().intersectionPoint <= currentIntersectionPoint) + m_topIntersection.pop(); + +#ifdef Q_TRIANGULATOR_DEBUG + DebugDialog dialog(this, intersection.vertex); + dialog.exec(); +#endif + + } +} + +void QTriangulator::ComplexToSimple::fillPriorityQueue() +{ + m_events.reset(); + m_events.reserve(m_edges.size() * 2); + for (int i = 0; i < m_edges.size(); ++i) { + Q_ASSERT(m_edges.at(i).previous == -1 && m_edges.at(i).next == -1); + Q_ASSERT(m_edges.at(i).node == 0); + Q_ASSERT(m_edges.at(i).pointingUp == m_edges.at(i).originallyPointingUp); + Q_ASSERT(m_edges.at(i).pointingUp == (m_parent->m_vertices.at(m_edges.at(i).to) < m_parent->m_vertices.at(m_edges.at(i).from))); + // Ignore zero-length edges. + if (m_parent->m_vertices.at(m_edges.at(i).to) != m_parent->m_vertices.at(m_edges.at(i).from)) { + QPodPoint upper = m_parent->m_vertices.at(m_edges.at(i).upper()); + QPodPoint lower = m_parent->m_vertices.at(m_edges.at(i).lower()); + Event upperEvent = {{upper.x, upper.y}, Event::Upper, i}; + Event lowerEvent = {{lower.x, lower.y}, Event::Lower, i}; + m_events.add(upperEvent); + m_events.add(lowerEvent); + } + } + //qSort(m_events.data(), m_events.data() + m_events.size()); + sort(m_events.data(), m_events.size()); +} + +void QTriangulator::ComplexToSimple::calculateIntersections() +{ + fillPriorityQueue(); + + Q_ASSERT(m_topIntersection.empty()); + Q_ASSERT(m_edgeList.root == 0); + + // Find all intersection points. + while (!m_events.isEmpty()) { + Event event = m_events.last(); + sortEdgeList(event.point); + + // Find all edges in the edge list that contain the current vertex and mark them to be split later. + QPair<QRBTree<int>::Node *, QRBTree<int>::Node *> range = bounds(event.point); + QRBTree<int>::Node *leftNode = range.first ? m_edgeList.previous(range.first) : 0; + int vertex = (event.type == Event::Upper ? m_edges.at(event.edge).upper() : m_edges.at(event.edge).lower()); + QIntersectionPoint eventPoint = qIntersectionPoint(event.point); + + if (range.first != 0) { + splitEdgeListRange(range.first, range.second, vertex, eventPoint); + reorderEdgeListRange(range.first, range.second); + } + + // Handle the edges with start or end point in the current vertex. + while (!m_events.isEmpty() && m_events.last().point == event.point) { + event = m_events.last(); + m_events.pop_back(); + int i = event.edge; + + if (m_edges.at(i).node) { + // Remove edge from edge list. + Q_ASSERT(event.type == Event::Lower); + QRBTree<int>::Node *left = m_edgeList.previous(m_edges.at(i).node); + QRBTree<int>::Node *right = m_edgeList.next(m_edges.at(i).node); + m_edgeList.deleteNode(m_edges.at(i).node); + if (!left || !right) + continue; + calculateIntersection(left->data, right->data); + } else { + // Insert edge into edge list. + Q_ASSERT(event.type == Event::Upper); + QRBTree<int>::Node *left = searchEdgeLeftOf(i, leftNode); + m_edgeList.attachAfter(left, m_edges.at(i).node = m_edgeList.newNode()); + m_edges.at(i).node->data = i; + QRBTree<int>::Node *right = m_edgeList.next(m_edges.at(i).node); + if (left) + calculateIntersection(left->data, i); + if (right) + calculateIntersection(i, right->data); + } + } + while (!m_topIntersection.isEmpty() && m_topIntersection.top().intersectionPoint <= eventPoint) + m_topIntersection.pop(); +#ifdef Q_TRIANGULATOR_DEBUG + DebugDialog dialog(this, vertex); + dialog.exec(); +#endif + } + m_processedEdgePairs.clear(); +} + +// Split an edge into two pieces at the given point. +// The upper piece is pushed to the end of the 'm_edges' vector. +// The lower piece replaces the old edge. +// Return the edge whose 'from' is 'pointIndex'. +int QTriangulator::ComplexToSimple::splitEdge(int splitIndex) +{ + const Split &split = m_splits.at(splitIndex); + Edge &lowerEdge = m_edges.at(split.edge); + Q_ASSERT(lowerEdge.node == 0); + Q_ASSERT(lowerEdge.previous == -1 && lowerEdge.next == -1); + + if (lowerEdge.from == split.vertex) + return split.edge; + if (lowerEdge.to == split.vertex) + return lowerEdge.next; + + // Check that angle >= 90 degrees. + //Q_ASSERT(qDot(m_points.at(m_edges.at(edgeIndex).from) - m_points.at(pointIndex), + // m_points.at(m_edges.at(edgeIndex).to) - m_points.at(pointIndex)) <= 0); + + Edge upperEdge = lowerEdge; + upperEdge.mayIntersect |= !split.accurate; // The edge may have been split before at an inaccurate split point. + lowerEdge.mayIntersect = !split.accurate; + if (lowerEdge.pointingUp) { + lowerEdge.to = upperEdge.from = split.vertex; + m_edges.add(upperEdge); + return m_edges.size() - 1; + } else { + lowerEdge.from = upperEdge.to = split.vertex; + m_edges.add(upperEdge); + return split.edge; + } +} + +bool QTriangulator::ComplexToSimple::splitEdgesAtIntersections() +{ + for (int i = 0; i < m_edges.size(); ++i) + m_edges.at(i).mayIntersect = false; + bool checkForNewIntersections = false; + for (int i = 0; i < m_splits.size(); ++i) { + splitEdge(i); + checkForNewIntersections |= !m_splits.at(i).accurate; + } + for (int i = 0; i < m_edges.size(); ++i) { + m_edges.at(i).originallyPointingUp = m_edges.at(i).pointingUp = + m_parent->m_vertices.at(m_edges.at(i).to) < m_parent->m_vertices.at(m_edges.at(i).from); + } + m_splits.reset(); + return checkForNewIntersections; +} + +void QTriangulator::ComplexToSimple::insertEdgeIntoVectorIfWanted(ShortArray &orderedEdges, int i) +{ + // Edges with zero length should not reach this part. + Q_ASSERT(m_parent->m_vertices.at(m_edges.at(i).from) != m_parent->m_vertices.at(m_edges.at(i).to)); + + // Skip edges with unwanted winding number. + int windingNumber = m_edges.at(i).winding; + if (m_edges.at(i).originallyPointingUp) + ++windingNumber; + + // Make sure exactly one fill rule is specified. + Q_ASSERT(((m_parent->m_hint & QVectorPath::WindingFill) != 0) != ((m_parent->m_hint & QVectorPath::OddEvenFill) != 0)); + + if ((m_parent->m_hint & QVectorPath::WindingFill) && windingNumber != 0 && windingNumber != 1) + return; + + // Skip cancelling edges. + if (!orderedEdges.isEmpty()) { + int j = orderedEdges[orderedEdges.size() - 1]; + // If the last edge is already connected in one end, it should not be cancelled. + if (m_edges.at(j).next == -1 && m_edges.at(j).previous == -1 + && (m_parent->m_vertices.at(m_edges.at(i).from) == m_parent->m_vertices.at(m_edges.at(j).to)) + && (m_parent->m_vertices.at(m_edges.at(i).to) == m_parent->m_vertices.at(m_edges.at(j).from))) { + orderedEdges.removeLast(); + return; + } + } + orderedEdges.append(i); +} + +void QTriangulator::ComplexToSimple::removeUnwantedEdgesAndConnect() +{ + Q_ASSERT(m_edgeList.root == 0); + // Initialize priority queue. + fillPriorityQueue(); + + ShortArray orderedEdges; + + while (!m_events.isEmpty()) { + Event event = m_events.last(); + int edgeIndex = event.edge; + + // Check that all the edges in the list crosses the current scanline + //if (m_edgeList.root) { + // for (QRBTree<int>::Node *node = m_edgeList.front(m_edgeList.root); node; node = m_edgeList.next(node)) { + // Q_ASSERT(event.point <= m_points.at(m_edges.at(node->data).lower())); + // } + //} + + orderedEdges.clear(); + QPair<QRBTree<int>::Node *, QRBTree<int>::Node *> b = outerBounds(event.point); + if (m_edgeList.root) { + QRBTree<int>::Node *current = (b.first ? m_edgeList.next(b.first) : m_edgeList.front(m_edgeList.root)); + // Process edges that are going to be removed from the edge list at the current event point. + while (current != b.second) { + Q_ASSERT(current); + Q_ASSERT(m_edges.at(current->data).node == current); + Q_ASSERT(qIntersectionPoint(event.point).isOnLine(m_parent->m_vertices.at(m_edges.at(current->data).from), m_parent->m_vertices.at(m_edges.at(current->data).to))); + Q_ASSERT(m_parent->m_vertices.at(m_edges.at(current->data).from) == event.point || m_parent->m_vertices.at(m_edges.at(current->data).to) == event.point); + insertEdgeIntoVectorIfWanted(orderedEdges, current->data); + current = m_edgeList.next(current); + } + } + + // Remove edges above the event point, insert edges below the event point. + do { + event = m_events.last(); + m_events.pop_back(); + edgeIndex = event.edge; + + // Edges with zero length should not reach this part. + Q_ASSERT(m_parent->m_vertices.at(m_edges.at(edgeIndex).from) != m_parent->m_vertices.at(m_edges.at(edgeIndex).to)); + + if (m_edges.at(edgeIndex).node) { + Q_ASSERT(event.type == Event::Lower); + Q_ASSERT(event.point == m_parent->m_vertices.at(m_edges.at(event.edge).lower())); + m_edgeList.deleteNode(m_edges.at(edgeIndex).node); + } else { + Q_ASSERT(event.type == Event::Upper); + Q_ASSERT(event.point == m_parent->m_vertices.at(m_edges.at(event.edge).upper())); + QRBTree<int>::Node *left = searchEdgeLeftOf(edgeIndex, b.first); + m_edgeList.attachAfter(left, m_edges.at(edgeIndex).node = m_edgeList.newNode()); + m_edges.at(edgeIndex).node->data = edgeIndex; + } + } while (!m_events.isEmpty() && m_events.last().point == event.point); + + if (m_edgeList.root) { + QRBTree<int>::Node *current = (b.first ? m_edgeList.next(b.first) : m_edgeList.front(m_edgeList.root)); + + // Calculate winding number and turn counter-clockwise. + int currentWindingNumber = (b.first ? m_edges.at(b.first->data).winding : 0); + while (current != b.second) { + Q_ASSERT(current); + //Q_ASSERT(b.second == 0 || m_edgeList.order(current, b.second) < 0); + int i = current->data; + Q_ASSERT(m_edges.at(i).node == current); + + // Winding number. + int ccwWindingNumber = m_edges.at(i).winding = currentWindingNumber; + if (m_edges.at(i).originallyPointingUp) { + --m_edges.at(i).winding; + } else { + ++m_edges.at(i).winding; + ++ccwWindingNumber; + } + currentWindingNumber = m_edges.at(i).winding; + + // Turn counter-clockwise. + if ((ccwWindingNumber & 1) == 0) { + Q_ASSERT(m_edges.at(i).previous == -1 && m_edges.at(i).next == -1); + qSwap(m_edges.at(i).from, m_edges.at(i).to); + m_edges.at(i).pointingUp = !m_edges.at(i).pointingUp; + } + + current = m_edgeList.next(current); + } + + // Process edges that were inserted into the edge list at the current event point. + current = (b.second ? m_edgeList.previous(b.second) : m_edgeList.back(m_edgeList.root)); + while (current != b.first) { + Q_ASSERT(current); + Q_ASSERT(m_edges.at(current->data).node == current); + insertEdgeIntoVectorIfWanted(orderedEdges, current->data); + current = m_edgeList.previous(current); + } + } + if (orderedEdges.isEmpty()) + continue; + + Q_ASSERT((orderedEdges.size() & 1) == 0); + + // Connect edges. + // First make sure the first edge point towards the current point. + int i; + if (m_parent->m_vertices.at(m_edges.at(orderedEdges[0]).from) == event.point) { + i = 1; + int copy = orderedEdges[0]; // Make copy in case the append() will cause a reallocation. + orderedEdges.append(copy); + } else { + Q_ASSERT(m_parent->m_vertices.at(m_edges.at(orderedEdges[0]).to) == event.point); + i = 0; + } + + // Remove references to duplicate points. First find the point with lowest index. + int pointIndex = INT_MAX; + for (int j = i; j < orderedEdges.size(); j += 2) { + Q_ASSERT(j + 1 < orderedEdges.size()); + Q_ASSERT(m_parent->m_vertices.at(m_edges.at(orderedEdges[j]).to) == event.point); + Q_ASSERT(m_parent->m_vertices.at(m_edges.at(orderedEdges[j + 1]).from) == event.point); + if (m_edges.at(orderedEdges[j]).to < pointIndex) + pointIndex = m_edges.at(orderedEdges[j]).to; + if (m_edges.at(orderedEdges[j + 1]).from < pointIndex) + pointIndex = m_edges.at(orderedEdges[j + 1]).from; + } + + for (; i < orderedEdges.size(); i += 2) { + // Remove references to duplicate points by making all edges reference one common point. + m_edges.at(orderedEdges[i]).to = m_edges.at(orderedEdges[i + 1]).from = pointIndex; + + Q_ASSERT(m_edges.at(orderedEdges[i]).pointingUp || m_edges.at(orderedEdges[i]).previous != -1); + Q_ASSERT(!m_edges.at(orderedEdges[i + 1]).pointingUp || m_edges.at(orderedEdges[i + 1]).next != -1); + + m_edges.at(orderedEdges[i]).next = orderedEdges[i + 1]; + m_edges.at(orderedEdges[i + 1]).previous = orderedEdges[i]; + } + } // end while +} + +void QTriangulator::ComplexToSimple::removeUnusedPoints() { + QBitArray used(m_parent->m_vertices.size(), false); + for (int i = 0; i < m_edges.size(); ++i) { + Q_ASSERT((m_edges.at(i).previous == -1) == (m_edges.at(i).next == -1)); + if (m_edges.at(i).next != -1) + used.setBit(m_edges.at(i).from); + } + QDataBuffer<quint32> newMapping(m_parent->m_vertices.size()); + newMapping.resize(m_parent->m_vertices.size()); + int count = 0; + for (int i = 0; i < m_parent->m_vertices.size(); ++i) { + if (used.at(i)) { + m_parent->m_vertices.at(count) = m_parent->m_vertices.at(i); + newMapping.at(i) = count; + ++count; + } + } + m_parent->m_vertices.resize(count); + for (int i = 0; i < m_edges.size(); ++i) { + m_edges.at(i).from = newMapping.at(m_edges.at(i).from); + m_edges.at(i).to = newMapping.at(m_edges.at(i).to); + } +} + +bool QTriangulator::ComplexToSimple::CompareEdges::operator () (int i, int j) const +{ + int cmp = comparePoints(m_parent->m_parent->m_vertices.at(m_parent->m_edges.at(i).from), + m_parent->m_parent->m_vertices.at(m_parent->m_edges.at(j).from)); + if (cmp == 0) { + cmp = comparePoints(m_parent->m_parent->m_vertices.at(m_parent->m_edges.at(i).to), + m_parent->m_parent->m_vertices.at(m_parent->m_edges.at(j).to)); + } + return cmp > 0; +} + +inline bool QTriangulator::ComplexToSimple::Event::operator < (const Event &other) const +{ + if (point == other.point) + return type < other.type; // 'Lower' has higher priority than 'Upper'. + return other.point < point; +} + +//============================================================================// +// QTriangulator::ComplexToSimple::DebugDialog // +//============================================================================// + +#ifdef Q_TRIANGULATOR_DEBUG + +QTriangulator::ComplexToSimple::DebugDialog::DebugDialog(ComplexToSimple *parent, int currentVertex) + : m_parent(parent), m_vertex(currentVertex) +{ + QDataBuffer<QPodPoint> &vertices = m_parent->m_parent->m_vertices; + if (vertices.isEmpty()) + return; + + int minX, maxX, minY, maxY; + minX = maxX = vertices.at(0).x; + minY = maxY = vertices.at(0).y; + for (int i = 1; i < vertices.size(); ++i) { + minX = qMin(minX, vertices.at(i).x); + maxX = qMax(maxX, vertices.at(i).x); + minY = qMin(minY, vertices.at(i).y); + maxY = qMax(maxY, vertices.at(i).y); + } + int w = maxX - minX; + int h = maxY - minY; + qreal border = qMin(w, h) / 10.0; + m_window = QRectF(minX - border, minY - border, (maxX - minX + 2 * border), (maxY - minY + 2 * border)); +} + +void QTriangulator::ComplexToSimple::DebugDialog::paintEvent(QPaintEvent *) +{ + QPainter p(this); + p.setRenderHint(QPainter::Antialiasing, true); + p.fillRect(rect(), Qt::black); + QDataBuffer<QPodPoint> &vertices = m_parent->m_parent->m_vertices; + if (vertices.isEmpty()) + return; + + qreal halfPointSize = qMin(m_window.width(), m_window.height()) / 300.0; + p.setWindow(m_window.toRect()); + + p.setPen(Qt::white); + + QDataBuffer<Edge> &edges = m_parent->m_edges; + for (int i = 0; i < edges.size(); ++i) { + QPodPoint u = vertices.at(edges.at(i).from); + QPodPoint v = vertices.at(edges.at(i).to); + p.drawLine(u.x, u.y, v.x, v.y); + } + + for (int i = 0; i < vertices.size(); ++i) { + QPodPoint q = vertices.at(i); + p.fillRect(QRectF(q.x - halfPointSize, q.y - halfPointSize, 2 * halfPointSize, 2 * halfPointSize), Qt::red); + } + + Qt::GlobalColor colors[6] = {Qt::red, Qt::green, Qt::blue, Qt::cyan, Qt::magenta, Qt::yellow}; + p.setOpacity(0.5); + int count = 0; + if (m_parent->m_edgeList.root) { + QRBTree<int>::Node *current = m_parent->m_edgeList.front(m_parent->m_edgeList.root); + while (current) { + p.setPen(colors[count++ % 6]); + QPodPoint u = vertices.at(edges.at(current->data).from); + QPodPoint v = vertices.at(edges.at(current->data).to); + p.drawLine(u.x, u.y, v.x, v.y); + current = m_parent->m_edgeList.next(current); + } + } + + p.setOpacity(1.0); + QPodPoint q = vertices.at(m_vertex); + p.fillRect(QRectF(q.x - halfPointSize, q.y - halfPointSize, 2 * halfPointSize, 2 * halfPointSize), Qt::green); + + p.setPen(Qt::gray); + QDataBuffer<Split> &splits = m_parent->m_splits; + for (int i = 0; i < splits.size(); ++i) { + QPodPoint q = vertices.at(splits.at(i).vertex); + QPodPoint u = vertices.at(edges.at(splits.at(i).edge).from) - q; + QPodPoint v = vertices.at(edges.at(splits.at(i).edge).to) - q; + qreal uLen = sqrt(qreal(qDot(u, u))); + qreal vLen = sqrt(qreal(qDot(v, v))); + if (uLen) { + u.x *= 2 * halfPointSize / uLen; + u.y *= 2 * halfPointSize / uLen; + } + if (vLen) { + v.x *= 2 * halfPointSize / vLen; + v.y *= 2 * halfPointSize / vLen; + } + u += q; + v += q; + p.drawLine(u.x, u.y, v.x, v.y); + } +} + +void QTriangulator::ComplexToSimple::DebugDialog::wheelEvent(QWheelEvent *event) +{ + qreal scale = exp(-0.001 * event->delta()); + QPointF center = m_window.center(); + QPointF delta = scale * (m_window.bottomRight() - center); + m_window = QRectF(center - delta, center + delta); + event->accept(); + update(); +} + +void QTriangulator::ComplexToSimple::DebugDialog::mouseMoveEvent(QMouseEvent *event) +{ + if (event->buttons() & Qt::LeftButton) { + QPointF delta = event->pos() - m_lastMousePos; + delta.setX(delta.x() * m_window.width() / width()); + delta.setY(delta.y() * m_window.height() / height()); + m_window.translate(-delta.x(), -delta.y()); + m_lastMousePos = event->pos(); + event->accept(); + update(); + } +} + +void QTriangulator::ComplexToSimple::DebugDialog::mousePressEvent(QMouseEvent *event) +{ + if (event->button() == Qt::LeftButton) + m_lastMousePos = event->pos(); + event->accept(); +} + + +#endif + +//============================================================================// +// QTriangulator::SimpleToMonotone // +//============================================================================// + +void QTriangulator::SimpleToMonotone::decompose() +{ + setupDataStructures(); + removeZeroLengthEdges(); + monotoneDecomposition(); + + m_parent->m_indices.clear(); + QBitArray processed(m_edges.size(), false); + for (int first = 0; first < m_edges.size(); ++first) { + if (processed.at(first)) + continue; + int i = first; + do { + Q_ASSERT(!processed.at(i)); + Q_ASSERT(m_edges.at(m_edges.at(i).next).previous == i); + m_parent->m_indices.push_back(m_edges.at(i).from); + processed.setBit(i); + i = m_edges.at(i).next; + } while (i != first); + if (m_parent->m_indices.size() > 0 && m_parent->m_indices.back() != Q_TRIANGULATE_END_OF_POLYGON) + m_parent->m_indices.push_back(Q_TRIANGULATE_END_OF_POLYGON); + } +} + +void QTriangulator::SimpleToMonotone::setupDataStructures() +{ + int i = 0; + Edge e; + e.node = 0; + e.twin = -1; + + while (i + 3 <= m_parent->m_indices.size()) { + int start = m_edges.size(); + + do { + e.from = m_parent->m_indices.at(i); + e.type = RegularVertex; + e.next = m_edges.size() + 1; + e.previous = m_edges.size() - 1; + m_edges.add(e); + ++i; + Q_ASSERT(i < m_parent->m_indices.size()); + } while (m_parent->m_indices.at(i) != Q_TRIANGULATE_END_OF_POLYGON); + + m_edges.last().next = start; + m_edges.at(start).previous = m_edges.size() - 1; + ++i; // Skip Q_TRIANGULATE_END_OF_POLYGON. + } + + for (i = 0; i < m_edges.size(); ++i) { + m_edges.at(i).to = m_edges.at(m_edges.at(i).next).from; + m_edges.at(i).pointingUp = m_parent->m_vertices.at(m_edges.at(i).to) < m_parent->m_vertices.at(m_edges.at(i).from); + m_edges.at(i).helper = -1; // Not initialized here. + } +} + +void QTriangulator::SimpleToMonotone::removeZeroLengthEdges() +{ + for (int i = 0; i < m_edges.size(); ++i) { + if (m_parent->m_vertices.at(m_edges.at(i).from) == m_parent->m_vertices.at(m_edges.at(i).to)) { + m_edges.at(m_edges.at(i).previous).next = m_edges.at(i).next; + m_edges.at(m_edges.at(i).next).previous = m_edges.at(i).previous; + m_edges.at(m_edges.at(i).next).from = m_edges.at(i).from; + m_edges.at(i).next = -1; // Mark as removed. + } + } + + QDataBuffer<int> newMapping(m_edges.size()); + newMapping.resize(m_edges.size()); + int count = 0; + for (int i = 0; i < m_edges.size(); ++i) { + if (m_edges.at(i).next != -1) { + m_edges.at(count) = m_edges.at(i); + newMapping.at(i) = count; + ++count; + } + } + m_edges.resize(count); + for (int i = 0; i < m_edges.size(); ++i) { + m_edges.at(i).next = newMapping.at(m_edges.at(i).next); + m_edges.at(i).previous = newMapping.at(m_edges.at(i).previous); + } +} + +void QTriangulator::SimpleToMonotone::fillPriorityQueue() +{ + m_upperVertex.reset(); + m_upperVertex.reserve(m_edges.size()); + for (int i = 0; i < m_edges.size(); ++i) + m_upperVertex.add(i); + CompareVertices cmp(this); + //qSort(m_upperVertex.data(), m_upperVertex.data() + m_upperVertex.size(), cmp); + sort(m_upperVertex.data(), m_upperVertex.size(), cmp); + //for (int i = 1; i < m_upperVertex.size(); ++i) { + // Q_ASSERT(!cmp(m_upperVertex.at(i), m_upperVertex.at(i - 1))); + //} +} + +bool QTriangulator::SimpleToMonotone::edgeIsLeftOfEdge(int leftEdgeIndex, int rightEdgeIndex) const +{ + const Edge &leftEdge = m_edges.at(leftEdgeIndex); + const Edge &rightEdge = m_edges.at(rightEdgeIndex); + const QPodPoint &u = m_parent->m_vertices.at(rightEdge.upper()); + const QPodPoint &l = m_parent->m_vertices.at(rightEdge.lower()); + qint64 d = qPointDistanceFromLine(m_parent->m_vertices.at(leftEdge.upper()), l, u); + // d < 0: left, d > 0: right, d == 0: on top + if (d == 0) + d = qPointDistanceFromLine(m_parent->m_vertices.at(leftEdge.lower()), l, u); + return d < 0; +} + +// Returns the rightmost edge not to the right of the given edge. +QRBTree<int>::Node *QTriangulator::SimpleToMonotone::searchEdgeLeftOfEdge(int edgeIndex) const +{ + QRBTree<int>::Node *current = m_edgeList.root; + QRBTree<int>::Node *result = 0; + while (current) { + if (edgeIsLeftOfEdge(edgeIndex, current->data)) { + current = current->left; + } else { + result = current; + current = current->right; + } + } + return result; +} + +// Returns the rightmost edge left of the given point. +QRBTree<int>::Node *QTriangulator::SimpleToMonotone::searchEdgeLeftOfPoint(int pointIndex) const +{ + QRBTree<int>::Node *current = m_edgeList.root; + QRBTree<int>::Node *result = 0; + while (current) { + const QPodPoint &p1 = m_parent->m_vertices.at(m_edges.at(current->data).lower()); + const QPodPoint &p2 = m_parent->m_vertices.at(m_edges.at(current->data).upper()); + qint64 d = qPointDistanceFromLine(m_parent->m_vertices.at(pointIndex), p1, p2); + if (d <= 0) { + current = current->left; + } else { + result = current; + current = current->right; + } + } + return result; +} + +void QTriangulator::SimpleToMonotone::classifyVertex(int i) +{ + Edge &e2 = m_edges.at(i); + const Edge &e1 = m_edges.at(e2.previous); + + bool startOrSplit = (e1.pointingUp && !e2.pointingUp); + bool endOrMerge = (!e1.pointingUp && e2.pointingUp); + + const QPodPoint &p1 = m_parent->m_vertices.at(e1.from); + const QPodPoint &p2 = m_parent->m_vertices.at(e2.from); + const QPodPoint &p3 = m_parent->m_vertices.at(e2.to); + qint64 d = qPointDistanceFromLine(p1, p2, p3); + Q_ASSERT(d != 0 || (!startOrSplit && !endOrMerge)); + + e2.type = RegularVertex; + + if (m_clockwiseOrder) { + if (startOrSplit) + e2.type = (d < 0 ? SplitVertex : StartVertex); + else if (endOrMerge) + e2.type = (d < 0 ? MergeVertex : EndVertex); + } else { + if (startOrSplit) + e2.type = (d > 0 ? SplitVertex : StartVertex); + else if (endOrMerge) + e2.type = (d > 0 ? MergeVertex : EndVertex); + } +} + +void QTriangulator::SimpleToMonotone::classifyVertices() +{ + for (int i = 0; i < m_edges.size(); ++i) + classifyVertex(i); +} + +bool QTriangulator::SimpleToMonotone::pointIsInSector(const QPodPoint &p, const QPodPoint &v1, const QPodPoint &v2, const QPodPoint &v3) +{ + bool leftOfPreviousEdge = !qPointIsLeftOfLine(p, v2, v1); + bool leftOfNextEdge = !qPointIsLeftOfLine(p, v3, v2); + + if (qPointIsLeftOfLine(v1, v2, v3)) + return leftOfPreviousEdge && leftOfNextEdge; + else + return leftOfPreviousEdge || leftOfNextEdge; +} + +bool QTriangulator::SimpleToMonotone::pointIsInSector(int vertex, int sector) +{ + const QPodPoint ¢er = m_parent->m_vertices.at(m_edges.at(sector).from); + // Handle degenerate edges. + while (m_parent->m_vertices.at(m_edges.at(vertex).from) == center) + vertex = m_edges.at(vertex).next; + int next = m_edges.at(sector).next; + while (m_parent->m_vertices.at(m_edges.at(next).from) == center) + next = m_edges.at(next).next; + int previous = m_edges.at(sector).previous; + while (m_parent->m_vertices.at(m_edges.at(previous).from) == center) + previous = m_edges.at(previous).previous; + + const QPodPoint &p = m_parent->m_vertices.at(m_edges.at(vertex).from); + const QPodPoint &v1 = m_parent->m_vertices.at(m_edges.at(previous).from); + const QPodPoint &v3 = m_parent->m_vertices.at(m_edges.at(next).from); + if (m_clockwiseOrder) + return pointIsInSector(p, v3, center, v1); + else + return pointIsInSector(p, v1, center, v3); +} + +int QTriangulator::SimpleToMonotone::findSector(int edge, int vertex) +{ + while (!pointIsInSector(vertex, edge)) { + edge = m_edges.at(m_edges.at(edge).previous).twin; + Q_ASSERT(edge != -1); + } + return edge; +} + +void QTriangulator::SimpleToMonotone::createDiagonal(int lower, int upper) +{ + lower = findSector(lower, upper); + upper = findSector(upper, lower); + + int prevLower = m_edges.at(lower).previous; + int prevUpper = m_edges.at(upper).previous; + + Edge e; + + e.twin = m_edges.size() + 1; + e.next = upper; + e.previous = prevLower; + e.from = m_edges.at(lower).from; + e.to = m_edges.at(upper).from; + m_edges.at(upper).previous = m_edges.at(prevLower).next = int(m_edges.size()); + m_edges.add(e); + + e.twin = m_edges.size() - 1; + e.next = lower; + e.previous = prevUpper; + e.from = m_edges.at(upper).from; + e.to = m_edges.at(lower).from; + m_edges.at(lower).previous = m_edges.at(prevUpper).next = int(m_edges.size()); + m_edges.add(e); +} + +void QTriangulator::SimpleToMonotone::monotoneDecomposition() +{ + if (m_edges.isEmpty()) + return; + + Q_ASSERT(!m_edgeList.root); + QDataBuffer<QPair<int, int> > diagonals(m_upperVertex.size()); + + int i = 0; + for (int index = 1; index < m_edges.size(); ++index) { + if (m_parent->m_vertices.at(m_edges.at(index).from) < m_parent->m_vertices.at(m_edges.at(i).from)) + i = index; + } + Q_ASSERT(i < m_edges.size()); + int j = m_edges.at(i).previous; + Q_ASSERT(j < m_edges.size()); + m_clockwiseOrder = qPointIsLeftOfLine(m_parent->m_vertices.at(m_edges.at(i).from), + m_parent->m_vertices.at(m_edges.at(j).from), m_parent->m_vertices.at(m_edges.at(i).to)); + + classifyVertices(); + fillPriorityQueue(); + + // debug: set helpers explicitly (shouldn't be necessary) + //for (int i = 0; i < m_edges.size(); ++i) + // m_edges.at(i).helper = m_edges.at(i).upper(); + + while (!m_upperVertex.isEmpty()) { + i = m_upperVertex.last(); + Q_ASSERT(i < m_edges.size()); + m_upperVertex.pop_back(); + j = m_edges.at(i).previous; + Q_ASSERT(j < m_edges.size()); + + QRBTree<int>::Node *leftEdgeNode = 0; + + switch (m_edges.at(i).type) { + case RegularVertex: + // If polygon interior is to the right of the vertex... + if (m_edges.at(i).pointingUp == m_clockwiseOrder) { + if (m_edges.at(i).node) { + Q_ASSERT(!m_edges.at(j).node); + if (m_edges.at(m_edges.at(i).helper).type == MergeVertex) + diagonals.add(QPair<int, int>(i, m_edges.at(i).helper)); + m_edges.at(j).node = m_edges.at(i).node; + m_edges.at(i).node = 0; + m_edges.at(j).node->data = j; + m_edges.at(j).helper = i; + } else if (m_edges.at(j).node) { + Q_ASSERT(!m_edges.at(i).node); + if (m_edges.at(m_edges.at(j).helper).type == MergeVertex) + diagonals.add(QPair<int, int>(i, m_edges.at(j).helper)); + m_edges.at(i).node = m_edges.at(j).node; + m_edges.at(j).node = 0; + m_edges.at(i).node->data = i; + m_edges.at(i).helper = i; + } else { + qWarning("Inconsistent polygon. (#1)"); + } + } else { + leftEdgeNode = searchEdgeLeftOfPoint(m_edges.at(i).from); + if (leftEdgeNode) { + if (m_edges.at(m_edges.at(leftEdgeNode->data).helper).type == MergeVertex) + diagonals.add(QPair<int, int>(i, m_edges.at(leftEdgeNode->data).helper)); + m_edges.at(leftEdgeNode->data).helper = i; + } else { + qWarning("Inconsistent polygon. (#2)"); + } + } + break; + case SplitVertex: + leftEdgeNode = searchEdgeLeftOfPoint(m_edges.at(i).from); + if (leftEdgeNode) { + diagonals.add(QPair<int, int>(i, m_edges.at(leftEdgeNode->data).helper)); + m_edges.at(leftEdgeNode->data).helper = i; + } else { + qWarning("Inconsistent polygon. (#3)"); + } + // Fall through. + case StartVertex: + if (m_clockwiseOrder) { + leftEdgeNode = searchEdgeLeftOfEdge(j); + QRBTree<int>::Node *node = m_edgeList.newNode(); + node->data = j; + m_edges.at(j).node = node; + m_edges.at(j).helper = i; + m_edgeList.attachAfter(leftEdgeNode, node); + Q_ASSERT(m_edgeList.verify()); + } else { + leftEdgeNode = searchEdgeLeftOfEdge(i); + QRBTree<int>::Node *node = m_edgeList.newNode(); + node->data = i; + m_edges.at(i).node = node; + m_edges.at(i).helper = i; + m_edgeList.attachAfter(leftEdgeNode, node); + Q_ASSERT(m_edgeList.verify()); + } + break; + case MergeVertex: + leftEdgeNode = searchEdgeLeftOfPoint(m_edges.at(i).from); + if (leftEdgeNode) { + if (m_edges.at(m_edges.at(leftEdgeNode->data).helper).type == MergeVertex) + diagonals.add(QPair<int, int>(i, m_edges.at(leftEdgeNode->data).helper)); + m_edges.at(leftEdgeNode->data).helper = i; + } else { + qWarning("Inconsistent polygon. (#4)"); + } + // Fall through. + case EndVertex: + if (m_clockwiseOrder) { + if (m_edges.at(m_edges.at(i).helper).type == MergeVertex) + diagonals.add(QPair<int, int>(i, m_edges.at(i).helper)); + if (m_edges.at(i).node) { + m_edgeList.deleteNode(m_edges.at(i).node); + Q_ASSERT(m_edgeList.verify()); + } else { + qWarning("Inconsistent polygon. (#5)"); + } + } else { + if (m_edges.at(m_edges.at(j).helper).type == MergeVertex) + diagonals.add(QPair<int, int>(i, m_edges.at(j).helper)); + if (m_edges.at(j).node) { + m_edgeList.deleteNode(m_edges.at(j).node); + Q_ASSERT(m_edgeList.verify()); + } else { + qWarning("Inconsistent polygon. (#6)"); + } + } + break; + } + } + + for (int i = 0; i < diagonals.size(); ++i) + createDiagonal(diagonals.at(i).first, diagonals.at(i).second); +} + +bool QTriangulator::SimpleToMonotone::CompareVertices::operator () (int i, int j) const +{ + if (m_parent->m_edges.at(i).from == m_parent->m_edges.at(j).from) + return m_parent->m_edges.at(i).type > m_parent->m_edges.at(j).type; + return m_parent->m_parent->m_vertices.at(m_parent->m_edges.at(i).from) > + m_parent->m_parent->m_vertices.at(m_parent->m_edges.at(j).from); +} + +//============================================================================// +// QTriangulator::MonotoneToTriangles // +//============================================================================// + +void QTriangulator::MonotoneToTriangles::decompose() +{ + QVector<quint32> result; + QDataBuffer<int> stack(m_parent->m_indices.size()); + m_first = 0; + // Require at least three more indices. + while (m_first + 3 <= m_parent->m_indices.size()) { + m_length = 0; + while (m_parent->m_indices.at(m_first + m_length) != Q_TRIANGULATE_END_OF_POLYGON) { + ++m_length; + Q_ASSERT(m_first + m_length < m_parent->m_indices.size()); + } + if (m_length < 3) { + m_first += m_length + 1; + continue; + } + + int minimum = 0; + while (less(next(minimum), minimum)) + minimum = next(minimum); + while (less(previous(minimum), minimum)) + minimum = previous(minimum); + + stack.reset(); + stack.add(minimum); + int left = previous(minimum); + int right = next(minimum); + bool stackIsOnLeftSide; + bool clockwiseOrder = leftOfEdge(minimum, left, right); + + if (less(left, right)) { + stack.add(left); + left = previous(left); + stackIsOnLeftSide = true; + } else { + stack.add(right); + right = next(right); + stackIsOnLeftSide = false; + } + + for (int count = 0; count + 2 < m_length; ++count) + { + Q_ASSERT(stack.size() >= 2); + if (less(left, right)) { + if (stackIsOnLeftSide == false) { + for (int i = 0; i + 1 < stack.size(); ++i) { + result.push_back(indices(stack.at(i + 1))); + result.push_back(indices(left)); + result.push_back(indices(stack.at(i))); + } + stack.first() = stack.last(); + stack.resize(1); + } else { + while (stack.size() >= 2 && (clockwiseOrder ^ !leftOfEdge(left, stack.at(stack.size() - 2), stack.last()))) { + result.push_back(indices(stack.at(stack.size() - 2))); + result.push_back(indices(left)); + result.push_back(indices(stack.last())); + stack.pop_back(); + } + } + stack.add(left); + left = previous(left); + stackIsOnLeftSide = true; + } else { + if (stackIsOnLeftSide == true) { + for (int i = 0; i + 1 < stack.size(); ++i) { + result.push_back(indices(stack.at(i))); + result.push_back(indices(right)); + result.push_back(indices(stack.at(i + 1))); + } + stack.first() = stack.last(); + stack.resize(1); + } else { + while (stack.size() >= 2 && (clockwiseOrder ^ !leftOfEdge(right, stack.last(), stack.at(stack.size() - 2)))) { + result.push_back(indices(stack.last())); + result.push_back(indices(right)); + result.push_back(indices(stack.at(stack.size() - 2))); + stack.pop_back(); + } + } + stack.add(right); + right = next(right); + stackIsOnLeftSide = false; + } + } + + m_first += m_length + 1; + } + m_parent->m_indices = result; +} + +//============================================================================// +// qTriangulate // +//============================================================================// + +QTriangleSet qTriangulate(const qreal *polygon, int count, uint hint, const QTransform &matrix) +{ + QTriangulator triangulator; + triangulator.initialize(polygon, count, hint, matrix); + return triangulator.triangulate(); +} + +QTriangleSet qTriangulate(const QVectorPath &path, const QTransform &matrix, qreal lod) +{ + QTriangulator triangulator; + triangulator.initialize(path, matrix, lod); + return triangulator.triangulate(); +} + +QTriangleSet qTriangulate(const QPainterPath &path, const QTransform &matrix, qreal lod) +{ + QTriangulator triangulator; + triangulator.initialize(path, matrix, lod); + return triangulator.triangulate(); +} + +QPolylineSet qPolyline(const QVectorPath &path, const QTransform &matrix, qreal lod) +{ + QTriangulator triangulator; + triangulator.initialize(path, matrix, lod); + return triangulator.polyline(); +} + +QPolylineSet qPolyline(const QPainterPath &path, const QTransform &matrix, qreal lod) +{ + QTriangulator triangulator; + triangulator.initialize(path, matrix, lod); + return triangulator.polyline(); +} + +QT_END_NAMESPACE diff --git a/src/opengl/gl2paintengineex/qtriangulator_p.h b/src/opengl/gl2paintengineex/qtriangulator_p.h new file mode 100644 index 0000000..e5eec39 --- /dev/null +++ b/src/opengl/gl2paintengineex/qtriangulator_p.h @@ -0,0 +1,98 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtOpenGL module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QTRIANGULATOR_P_H +#define QTRIANGULATOR_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <QtCore/qvector.h> +#include <QtGui/private/qvectorpath_p.h> + +QT_BEGIN_NAMESPACE + +#define Q_TRIANGULATE_END_OF_POLYGON quint32(-1) + +struct QTriangleSet +{ + inline QTriangleSet() { } + inline QTriangleSet(const QTriangleSet &other) : vertices(other.vertices), indices(other.indices) { } + QTriangleSet &operator = (const QTriangleSet &other) {vertices = other.vertices; indices = other.indices; return *this;} + + // The vertices of a triangle are given by: (x[i[n]], y[i[n]]), (x[j[n]], y[j[n]]), (x[k[n]], y[k[n]]), n = 0, 1, ... + QVector<qreal> vertices; // [x[0], y[0], x[1], y[1], x[2], ...] + QVector<quint32> indices; // [i[0], j[0], k[0], i[1], j[1], k[1], i[2], ...] +}; + +struct QPolylineSet +{ + inline QPolylineSet() { } + inline QPolylineSet(const QPolylineSet &other) : vertices(other.vertices), indices(other.indices) { } + QPolylineSet &operator = (const QPolylineSet &other) {vertices = other.vertices; indices = other.indices; return *this;} + + QVector<qreal> vertices; // [x[0], y[0], x[1], y[1], x[2], ...] + QVector<quint32> indices; + +}; + +// The vertex coordinates of the returned triangle set will be rounded to a grid with a mesh size +// of 1/32. The polygon is first transformed, then scaled by 32, the coordinates are rounded to +// integers, the polygon is triangulated, and then scaled back by 1/32. +// 'hint' should be a combination of QVectorPath::Hints. +// 'lod' is the level of detail. Default is 1. Curves are split into more lines when 'lod' is higher. +QTriangleSet qTriangulate(const qreal *polygon, int count, uint hint = QVectorPath::PolygonHint | QVectorPath::OddEvenFill, const QTransform &matrix = QTransform()); +QTriangleSet qTriangulate(const QVectorPath &path, const QTransform &matrix = QTransform(), qreal lod = 1); +QTriangleSet qTriangulate(const QPainterPath &path, const QTransform &matrix = QTransform(), qreal lod = 1); +QPolylineSet qPolyline(const QVectorPath &path, const QTransform &matrix = QTransform(), qreal lod = 1); +QPolylineSet qPolyline(const QPainterPath &path, const QTransform &matrix = QTransform(), qreal lod = 1); + +QT_END_NAMESPACE + +#endif diff --git a/src/opengl/opengl.pro b/src/opengl/opengl.pro index 6076891..d6011cf 100644 --- a/src/opengl/opengl.pro +++ b/src/opengl/opengl.pro @@ -5,6 +5,7 @@ DEFINES += QT_BUILD_OPENGL_LIB DEFINES += QT_NO_USING_NAMESPACE win32-msvc*|win32-icc:QMAKE_LFLAGS += /BASE:0x63000000 solaris-cc*:QMAKE_CXXFLAGS_RELEASE -= -O2 +irix-cc*:QMAKE_CXXFLAGS += -no_prelink -ptused unix:QMAKE_PKGCONFIG_REQUIRES = QtCore QtGui @@ -13,7 +14,6 @@ include(../qbase.pri) !win32:!embedded:!mac:CONFIG += x11 contains(QT_CONFIG, opengl):CONFIG += opengl contains(QT_CONFIG, opengles1):CONFIG += opengles1 -contains(QT_CONFIG, opengles1cl):CONFIG += opengles1cl contains(QT_CONFIG, opengles2):CONFIG += opengles2 contains(QT_CONFIG, egl):CONFIG += egl @@ -26,6 +26,7 @@ HEADERS += qgl.h \ qglframebufferobject_p.h \ qglextensions_p.h \ qglpaintdevice_p.h \ + qglbuffer.h \ SOURCES += qgl.cpp \ @@ -34,6 +35,7 @@ SOURCES += qgl.cpp \ qglframebufferobject.cpp \ qglextensions.cpp \ qglpaintdevice.cpp \ + qglbuffer.cpp \ !contains(QT_CONFIG, opengles2) { @@ -41,7 +43,7 @@ SOURCES += qgl.cpp \ SOURCES += qpaintengine_opengl.cpp } -!contains(QT_CONFIG, opengles1):!contains(QT_CONFIG, opengles1cl) { +!contains(QT_CONFIG, opengles1) { HEADERS += qglshaderprogram.h \ qglpixmapfilter_p.h \ qgraphicsshadereffect_p.h \ @@ -55,6 +57,7 @@ SOURCES += qgl.cpp \ gl2paintengineex/qglengineshadersource_p.h \ gl2paintengineex/qglcustomshaderstage_p.h \ gl2paintengineex/qtriangulatingstroker_p.h \ + gl2paintengineex/qtriangulator_p.h \ gl2paintengineex/qtextureglyphcache_gl_p.h SOURCES += qglshaderprogram.cpp \ @@ -69,12 +72,13 @@ SOURCES += qgl.cpp \ gl2paintengineex/qpaintengineex_opengl2.cpp \ gl2paintengineex/qglcustomshaderstage.cpp \ gl2paintengineex/qtriangulatingstroker.cpp \ + gl2paintengineex/qtriangulator.cpp \ gl2paintengineex/qtextureglyphcache_gl.cpp } x11 { - contains(QT_CONFIG, opengles1)|contains(QT_CONFIG, opengles1cl)|contains(QT_CONFIG, opengles2) { + contains(QT_CONFIG, egl) { SOURCES += qgl_x11egl.cpp \ qglpixelbuffer_egl.cpp \ qgl_egl.cpp \ @@ -113,6 +117,7 @@ mac { LIBS_PRIVATE += -framework AppKit -framework Carbon } win32:!wince*: { + DEFINES += QT_NO_EGL SOURCES += qgl_win.cpp \ qglpixelbuffer_win.cpp } @@ -121,8 +126,7 @@ wince*: { qglpixelbuffer_egl.cpp \ qgl_egl.cpp - HEADERS += qgl_cl_p.h \ - qgl_egl_p.h \ + HEADERS += qgl_egl_p.h } embedded { diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp index 0521bab..af016cf 100644 --- a/src/opengl/qgl.cpp +++ b/src/opengl/qgl.cpp @@ -49,7 +49,7 @@ #include "private/qpixmap_x11_p.h" #define INT32 dummy_INT32 #define INT8 dummy_INT8 -#if !defined(QT_OPENGL_ES) +#ifdef QT_NO_EGL # include <GL/glx.h> #endif #undef INT32 @@ -67,7 +67,7 @@ #include "qimage.h" #include "qgl_p.h" -#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL) +#if !defined(QT_OPENGL_ES_1) #include "gl2paintengineex/qpaintengineex_opengl2_p.h" #endif @@ -91,15 +91,11 @@ #include "qcolormap.h" #include "qfile.h" #include "qlibrary.h" +#include <qmutex.h> QT_BEGIN_NAMESPACE -#ifdef QT_OPENGL_ES_1_CL -#include "qgl_cl_p.h" -#endif - - #if defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_WS_QWS) QGLExtensionFuncs QGLContextPrivate::qt_extensionFuncs; #endif @@ -226,6 +222,9 @@ bool qt_gl_preferGL2Engine() \value DirectRendering Specifies that the context is used for direct rendering to a display. \value HasOverlay Enables the use of an overlay. \value SampleBuffers Enables the use of sample buffers. + \value DeprecatedFunctions Enables the use of deprecated functionality for OpenGL 3.x + contexts. A context with deprecated functionality enabled is + called a full context in the OpenGL specification. \value SingleBuffer Specifies the use of a single buffer, as opposed to double buffers. \value NoDepthBuffer Disables the use of a depth buffer. \value ColorIndex Specifies that the context should use a color index as its pixel format. @@ -236,6 +235,9 @@ bool qt_gl_preferGL2Engine() \value IndirectRendering Specifies that the context is used for indirect rendering to a buffer. \value NoOverlay Disables the use of an overlay. \value NoSampleBuffers Disables the use of sample buffers. + \value NoDeprecatedFunctions Disables the use of deprecated functionality for OpenGL 3.x + contexts. A context with deprecated functionality disabled is + called a forward compatible context in the OpenGL specification. \sa {Sample Buffers Example} */ @@ -765,6 +767,7 @@ void QGLFormat::setSamples(int numSamples) return; } d->numSamples = numSamples; + setSampleBuffers(numSamples > 0); } /*! @@ -903,6 +906,7 @@ void QGLFormat::setDepthBufferSize(int size) return; } d->depthSize = size; + setDepth(size > 0); } /*! @@ -1016,7 +1020,7 @@ void QGLFormat::setAlphaBufferSize(int size) return; } d->alphaSize = size; - setOption(QGL::AlphaChannel); + setAlpha(size > 0); } /*! @@ -1043,6 +1047,7 @@ void QGLFormat::setAccumBufferSize(int size) return; } d->accumSize = size; + setAccum(size > 0); } /*! @@ -1068,6 +1073,7 @@ void QGLFormat::setStencilBufferSize(int size) return; } d->stencilSize = size; + setStencil(size > 0); } /*! @@ -1081,6 +1087,90 @@ int QGLFormat::stencilBufferSize() const } /*! + \since 4.7 + + Set the OpenGL version to the \a major and \a minor numbers. If a + context compatible with the requested OpenGL version cannot be + created, a context compatible with version 1.x is created instead. + + \sa majorVersion(), minorVersion() +*/ +void QGLFormat::setVersion(int major, int minor) +{ + if (major < 1 || minor < 0) { + qWarning("QGLFormat::setVersion: Cannot set zero or negative version number %d.%d", major, minor); + return; + } + detach(); + d->majorVersion = major; + d->minorVersion = minor; +} + +/*! + \since 4.7 + + Returns the OpenGL major version. + + \sa setVersion(), minorVersion() +*/ +int QGLFormat::majorVersion() const +{ + return d->majorVersion; +} + +/*! + \since 4.7 + + Returns the OpenGL minor version. + + \sa setVersion(), majorVersion() +*/ +int QGLFormat::minorVersion() const +{ + return d->minorVersion; +} + +/*! + \enum QGLFormat::OpenGLContextProfile + \since 4.7 + + This enum describes the OpenGL context profiles that can be + specified for contexts implementing OpenGL version 3.2 or + higher. These profiles are different from OpenGL ES profiles. + + \value NoProfile OpenGL version is lower than 3.2. + \value CoreProfile Functionality deprecated in OpenGL version 3.0 is not available. + \value CompatibilityProfile Functionality from earlier OpenGL versions is available. +*/ + +/*! + \since 4.7 + + Set the OpenGL context profile to \a profile. The \a profile is + ignored if the requested OpenGL version is less than 3.2. + + \sa profile() +*/ +void QGLFormat::setProfile(OpenGLContextProfile profile) +{ + detach(); + d->profile = profile; +} + +/*! + \since 4.7 + + Returns the OpenGL context profile. + + \sa setProfile() +*/ +QGLFormat::OpenGLContextProfile QGLFormat::profile() const +{ + return d->profile; +} + + +/*! \fn bool QGLFormat::hasOpenGL() Returns true if the window system has any OpenGL support; @@ -1116,25 +1206,21 @@ QGLFormat::OpenGLVersionFlags Q_AUTOTEST_EXPORT qOpenGLVersionFlagsFromString(co if (parts[2].startsWith(QLatin1String("1.1"))) versionFlags |= QGLFormat::OpenGL_ES_Common_Version_1_1 | QGLFormat::OpenGL_ES_CommonLite_Version_1_1; - } - else { + } else { // Not -CM, must be CL, CommonLite versionFlags |= QGLFormat::OpenGL_ES_CommonLite_Version_1_0; if (parts[2].startsWith(QLatin1String("1.1"))) versionFlags |= QGLFormat::OpenGL_ES_CommonLite_Version_1_1; } - } - else { + } else { // OpenGL ES version 2.0 or higher versionFlags |= QGLFormat::OpenGL_ES_Version_2_0; } - } - else { + } else { // if < 3 parts to the name, it is an unrecognised OpenGL ES qWarning("Unrecognised OpenGL ES version"); } - } - else { + } else { // not ES, regular OpenGL, the version numbers are first in the string if (versionString.startsWith(QLatin1String("1."))) { switch (versionString[2].toAscii()) { @@ -1151,30 +1237,66 @@ QGLFormat::OpenGLVersionFlags Q_AUTOTEST_EXPORT qOpenGLVersionFlagsFromString(co default: break; } - } - else if (versionString.startsWith(QLatin1String("2."))) { + } else if (versionString.startsWith(QLatin1String("2."))) { versionFlags |= QGLFormat::OpenGL_Version_1_1 | QGLFormat::OpenGL_Version_1_2 | QGLFormat::OpenGL_Version_1_3 | QGLFormat::OpenGL_Version_1_4 | QGLFormat::OpenGL_Version_1_5 | QGLFormat::OpenGL_Version_2_0; - QString minorVersion = versionString.section(QLatin1Char(' '), 0, 0).section(QLatin1Char('.'), 1, 1); - if (minorVersion == QChar(QLatin1Char('1'))) + if (versionString[2].toAscii() == '1') versionFlags |= QGLFormat::OpenGL_Version_2_1; + } else if (versionString.startsWith(QLatin1String("3."))) { + versionFlags |= QGLFormat::OpenGL_Version_1_1 | + QGLFormat::OpenGL_Version_1_2 | + QGLFormat::OpenGL_Version_1_3 | + QGLFormat::OpenGL_Version_1_4 | + QGLFormat::OpenGL_Version_1_5 | + QGLFormat::OpenGL_Version_2_0 | + QGLFormat::OpenGL_Version_2_1 | + QGLFormat::OpenGL_Version_3_0; + switch (versionString[2].toAscii()) { + case '3': + versionFlags |= QGLFormat::OpenGL_Version_3_3; + case '2': + versionFlags |= QGLFormat::OpenGL_Version_3_2; + case '1': + versionFlags |= QGLFormat::OpenGL_Version_3_1; + case '0': + break; + default: + versionFlags |= QGLFormat::OpenGL_Version_3_1 | + QGLFormat::OpenGL_Version_3_2 | + QGLFormat::OpenGL_Version_3_3; + break; + } + } else if (versionString.startsWith(QLatin1String("4."))) { + versionFlags |= QGLFormat::OpenGL_Version_1_1 | + QGLFormat::OpenGL_Version_1_2 | + QGLFormat::OpenGL_Version_1_3 | + QGLFormat::OpenGL_Version_1_4 | + QGLFormat::OpenGL_Version_1_5 | + QGLFormat::OpenGL_Version_2_0 | + QGLFormat::OpenGL_Version_2_1 | + QGLFormat::OpenGL_Version_3_0 | + QGLFormat::OpenGL_Version_3_1 | + QGLFormat::OpenGL_Version_3_2 | + QGLFormat::OpenGL_Version_3_3 | + QGLFormat::OpenGL_Version_4_0; + } else { + versionFlags |= QGLFormat::OpenGL_Version_1_1 | + QGLFormat::OpenGL_Version_1_2 | + QGLFormat::OpenGL_Version_1_3 | + QGLFormat::OpenGL_Version_1_4 | + QGLFormat::OpenGL_Version_1_5 | + QGLFormat::OpenGL_Version_2_0 | + QGLFormat::OpenGL_Version_2_1 | + QGLFormat::OpenGL_Version_3_0 | + QGLFormat::OpenGL_Version_3_1 | + QGLFormat::OpenGL_Version_3_2 | + QGLFormat::OpenGL_Version_3_3 | + QGLFormat::OpenGL_Version_4_0; } - else if (versionString.startsWith(QLatin1String("3."))) { - versionFlags |= QGLFormat::OpenGL_Version_1_1 | - QGLFormat::OpenGL_Version_1_2 | - QGLFormat::OpenGL_Version_1_3 | - QGLFormat::OpenGL_Version_1_4 | - QGLFormat::OpenGL_Version_1_5 | - QGLFormat::OpenGL_Version_2_0 | - QGLFormat::OpenGL_Version_2_1 | - QGLFormat::OpenGL_Version_3_0; - } - else - qWarning("Unrecognised OpenGL version"); } return versionFlags; } @@ -1206,6 +1328,12 @@ QGLFormat::OpenGLVersionFlags Q_AUTOTEST_EXPORT qOpenGLVersionFlagsFromString(co \value OpenGL_Version_3_0 OpenGL version 3.0 or higher is present. + \value OpenGL_Version_3_1 OpenGL version 3.1 or higher is present. + Note that OpenGL version 3.1 or higher does not necessarily support all the features of + version 3.0 and lower. + + \value OpenGL_Version_3_2 OpenGL version 3.2 or higher is present. + \value OpenGL_ES_CommonLite_Version_1_0 OpenGL ES version 1.0 Common Lite or higher is present. \value OpenGL_ES_Common_Version_1_0 OpenGL ES version 1.0 Common or higher is present. @@ -1377,15 +1505,47 @@ void QGLFormat::setDefaultOverlayFormat(const QGLFormat &f) bool operator==(const QGLFormat& a, const QGLFormat& b) { - return (int) a.d->opts == (int) b.d->opts && a.d->pln == b.d->pln && a.d->alphaSize == b.d->alphaSize - && a.d->accumSize == b.d->accumSize && a.d->stencilSize == b.d->stencilSize + return (a.d == b.d) || ((int) a.d->opts == (int) b.d->opts + && a.d->pln == b.d->pln + && a.d->alphaSize == b.d->alphaSize + && a.d->accumSize == b.d->accumSize + && a.d->stencilSize == b.d->stencilSize && a.d->depthSize == b.d->depthSize && a.d->redSize == b.d->redSize && a.d->greenSize == b.d->greenSize && a.d->blueSize == b.d->blueSize && a.d->numSamples == b.d->numSamples - && a.d->swapInterval == b.d->swapInterval; + && a.d->swapInterval == b.d->swapInterval + && a.d->majorVersion == b.d->majorVersion + && a.d->minorVersion == b.d->minorVersion + && a.d->profile == b.d->profile); +} + +#ifndef QT_NO_DEBUG_STREAM +QDebug operator<<(QDebug dbg, const QGLFormat &f) +{ + const QGLFormatPrivate * const d = f.d; + + dbg.nospace() << "QGLFormat(" + << "options " << d->opts + << ", plane " << d->pln + << ", depthBufferSize " << d->depthSize + << ", accumBufferSize " << d->accumSize + << ", stencilBufferSize " << d->stencilSize + << ", redBufferSize " << d->redSize + << ", greenBufferSize " << d->greenSize + << ", blueBufferSize " << d->blueSize + << ", alphaBufferSize " << d->alphaSize + << ", samples " << d->numSamples + << ", swapInterval " << d->swapInterval + << ", majorVersion " << d->majorVersion + << ", minorVersion " << d->minorVersion + << ", profile " << d->profile + << ')'; + + return dbg.space(); } +#endif /*! @@ -1400,10 +1560,33 @@ bool operator!=(const QGLFormat& a, const QGLFormat& b) return !(a == b); } +struct QGLContextGroupList { + void append(QGLContextGroup *group) { + QMutexLocker locker(&m_mutex); + m_list.append(group); + } + + void remove(QGLContextGroup *group) { + QMutexLocker locker(&m_mutex); + m_list.removeOne(group); + } + + QList<QGLContextGroup *> m_list; + QMutex m_mutex; +}; + +Q_GLOBAL_STATIC(QGLContextGroupList, qt_context_groups) + /***************************************************************************** QGLContext implementation *****************************************************************************/ +QGLContextGroup::QGLContextGroup(const QGLContext *context) + : m_context(context), m_guards(0), m_refs(1) +{ + qt_context_groups()->append(this); +} + QGLContextGroup::~QGLContextGroup() { // Clear any remaining QGLSharedResourceGuard objects on the group. @@ -1413,6 +1596,7 @@ QGLContextGroup::~QGLContextGroup() guard->m_id = 0; guard = guard->m_next; } + qt_context_groups()->remove(this); } void QGLContextGroup::addGuard(QGLSharedResourceGuard *guard) @@ -1480,7 +1664,8 @@ void QGLContextPrivate::init(QPaintDevice *dev, const QGLFormat &format) # endif vi = 0; #endif -#if defined(QT_OPENGL_ES) +#ifndef QT_NO_EGL + ownsEglContext = false; eglContext = 0; eglSurface = EGL_NO_SURFACE; #endif @@ -1496,6 +1681,9 @@ void QGLContextPrivate::init(QPaintDevice *dev, const QGLFormat &format) current_fbo = 0; default_fbo = 0; active_engine = 0; + workaround_needsFullClearOnEveryFrame = false; + workaround_brokenFBOReadBack = false; + workaroundsCached = false; for (int i = 0; i < QT_GL_VERTEX_ARRAY_TRACKED_COUNT; ++i) vertexAttributeArraysEnabledState[i] = false; } @@ -1566,7 +1754,7 @@ QImage qt_gl_read_texture(const QSize &size, bool alpha_format, bool include_alp QImage img(size, alpha_format ? QImage::Format_ARGB32_Premultiplied : QImage::Format_RGB32); int w = size.width(); int h = size.height(); -#if !defined(QT_OPENGL_ES_2) && !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL) +#if !defined(QT_OPENGL_ES_2) && !defined(QT_OPENGL_ES_1) //### glGetTexImage not in GL ES 2.0, need to do something else here! glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, img.bits()); #endif @@ -1594,14 +1782,12 @@ typedef void (*_qt_image_cleanup_hook_64)(qint64); extern Q_GUI_EXPORT _qt_pixmap_cleanup_hook_64 qt_pixmap_cleanup_hook_64; extern Q_GUI_EXPORT _qt_image_cleanup_hook_64 qt_image_cleanup_hook_64; -static QGLTextureCache *qt_gl_texture_cache = 0; + +Q_GLOBAL_STATIC(QGLTextureCache, qt_gl_texture_cache) QGLTextureCache::QGLTextureCache() : m_cache(64*1024) // cache ~64 MB worth of textures - this is not accurate though { - Q_ASSERT(qt_gl_texture_cache == 0); - qt_gl_texture_cache = this; - QImagePixmapCleanupHooks::instance()->addPixmapDataModificationHook(cleanupTexturesForPixampData); QImagePixmapCleanupHooks::instance()->addPixmapDataDestructionHook(cleanupBeforePixmapDestruction); QImagePixmapCleanupHooks::instance()->addImageHook(cleanupTexturesForCacheKey); @@ -1609,8 +1795,6 @@ QGLTextureCache::QGLTextureCache() QGLTextureCache::~QGLTextureCache() { - qt_gl_texture_cache = 0; - QImagePixmapCleanupHooks::instance()->removePixmapDataModificationHook(cleanupTexturesForPixampData); QImagePixmapCleanupHooks::instance()->removePixmapDataDestructionHook(cleanupBeforePixmapDestruction); QImagePixmapCleanupHooks::instance()->removeImageHook(cleanupTexturesForCacheKey); @@ -1618,9 +1802,10 @@ QGLTextureCache::~QGLTextureCache() void QGLTextureCache::insert(QGLContext* ctx, qint64 key, QGLTexture* texture, int cost) { + QWriteLocker locker(&m_lock); if (m_cache.totalCost() + cost > m_cache.maxCost()) { // the cache is full - make an attempt to remove something - const QList<qint64> keys = m_cache.keys(); + const QList<QGLTextureCacheKey> keys = m_cache.keys(); int i = 0; while (i < m_cache.count() && (m_cache.totalCost() + cost > m_cache.maxCost())) { @@ -1630,12 +1815,26 @@ void QGLTextureCache::insert(QGLContext* ctx, qint64 key, QGLTexture* texture, i ++i; } } - m_cache.insert(key, texture, cost); + const QGLTextureCacheKey cacheKey = {key, QGLContextPrivate::contextGroup(ctx)}; + m_cache.insert(cacheKey, texture, cost); +} + +void QGLTextureCache::remove(qint64 key) +{ + QWriteLocker locker(&m_lock); + QMutexLocker groupLocker(&qt_context_groups()->m_mutex); + QList<QGLContextGroup *>::const_iterator it = qt_context_groups()->m_list.constBegin(); + while (it != qt_context_groups()->m_list.constEnd()) { + const QGLTextureCacheKey cacheKey = {key, *it}; + m_cache.remove(cacheKey); + ++it; + } } bool QGLTextureCache::remove(QGLContext* ctx, GLuint textureId) { - QList<qint64> keys = m_cache.keys(); + QWriteLocker locker(&m_lock); + QList<QGLTextureCacheKey> keys = m_cache.keys(); for (int i = 0; i < keys.size(); ++i) { QGLTexture *tex = m_cache.object(keys.at(i)); if (tex->id == textureId && tex->context == ctx) { @@ -1649,33 +1848,22 @@ bool QGLTextureCache::remove(QGLContext* ctx, GLuint textureId) void QGLTextureCache::removeContextTextures(QGLContext* ctx) { - QList<qint64> keys = m_cache.keys(); + QWriteLocker locker(&m_lock); + QList<QGLTextureCacheKey> keys = m_cache.keys(); for (int i = 0; i < keys.size(); ++i) { - const qint64 &key = keys.at(i); + const QGLTextureCacheKey &key = keys.at(i); if (m_cache.object(key)->context == ctx) m_cache.remove(key); } } -QGLTextureCache* QGLTextureCache::instance() -{ - if (!qt_gl_texture_cache) - qt_gl_texture_cache = new QGLTextureCache; - - return qt_gl_texture_cache; -} - /* a hook that removes textures from the cache when a pixmap/image is deref'ed */ void QGLTextureCache::cleanupTexturesForCacheKey(qint64 cacheKey) { - // ### remove when the GL texture cache becomes thread-safe - if (qApp->thread() == QThread::currentThread()) { - instance()->remove(cacheKey); - Q_ASSERT(instance()->getTexture(cacheKey) == 0); - } + qt_gl_texture_cache()->remove(cacheKey); } @@ -1697,10 +1885,9 @@ void QGLTextureCache::cleanupBeforePixmapDestruction(QPixmapData* pmd) #endif } -void QGLTextureCache::deleteIfEmpty() +QGLTextureCache *QGLTextureCache::instance() { - if (instance()->size() == 0) - delete instance(); + return qt_gl_texture_cache(); } // DDS format structure @@ -1866,7 +2053,6 @@ QGLContext::~QGLContext() { // remove any textures cached in this context QGLTextureCache::instance()->removeContextTextures(this); - QGLTextureCache::deleteIfEmpty(); // ### thread safety d_ptr->group->cleanupResources(this); @@ -1906,6 +2092,16 @@ void QGLContextPrivate::syncGlState() } #undef ctx +#ifdef QT_NO_EGL +void QGLContextPrivate::swapRegion(const QRegion *) +{ + static bool firstWarning = true; + if (firstWarning) { + qWarning() << "::swapRegion called but not supported!"; + firstWarning = false; + } +} +#endif /*! \overload @@ -2060,6 +2256,13 @@ static void convertToGLFormatHelper(QImage &dst, const QImage &img, GLenum textu } } +#if defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_WS_QWS) +QGLExtensionFuncs& QGLContextPrivate::extensionFuncs(const QGLContext *) +{ + return qt_extensionFuncs; +} +#endif + QImage QGLContextPrivate::convertToGLFormat(const QImage &image, bool force_premul, GLenum texture_format) { @@ -2126,8 +2329,8 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G Q_Q(QGLContext); #ifdef QGL_BIND_TEXTURE_DEBUG - printf("QGLContextPrivate::bindTexture(), imageSize=(%d,%d), internalFormat =0x%x, options=%x\n", - image.width(), image.height(), internalFormat, int(options)); + printf("QGLContextPrivate::bindTexture(), imageSize=(%d,%d), internalFormat =0x%x, options=%x, key=%llx\n", + image.width(), image.height(), internalFormat, int(options), key); QTime time; time.start(); #endif @@ -2171,9 +2374,6 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G && target == GL_TEXTURE_2D && (options & QGLContext::MipmapBindOption)) { -#ifdef QGL_BIND_TEXTURE_DEBUG - printf(" - generating mipmaps (%d ms)\n", time.elapsed()); -#endif #if !defined(QT_OPENGL_ES_2) glHint(GL_GENERATE_MIPMAP_HINT_SGIS, GL_NICEST); #ifndef QT_OPENGL_ES @@ -2187,6 +2387,9 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G #endif glTexParameterf(target, GL_TEXTURE_MIN_FILTER, options & QGLContext::LinearFilteringBindOption ? GL_LINEAR_MIPMAP_LINEAR : GL_NEAREST_MIPMAP_NEAREST); +#ifdef QGL_BIND_TEXTURE_DEBUG + printf(" - generating mipmaps (%d ms)\n", time.elapsed()); +#endif } else { glTexParameterf(target, GL_TEXTURE_MIN_FILTER, filtering); } @@ -2211,7 +2414,7 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G if (premul) { img = img.convertToFormat(target_format = QImage::Format_ARGB32_Premultiplied); #ifdef QGL_BIND_TEXTURE_DEBUG - printf(" - converting ARGB32 -> ARGB32_Premultiplied (%d ms) \n", time.elapsed()); + printf(" - converted ARGB32 -> ARGB32_Premultiplied (%d ms) \n", time.elapsed()); #endif } break; @@ -2219,7 +2422,7 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G if (!premul) { img = img.convertToFormat(target_format = QImage::Format_ARGB32); #ifdef QGL_BIND_TEXTURE_DEBUG - printf(" - converting ARGB32_Premultiplied -> ARGB32 (%d ms)\n", time.elapsed()); + printf(" - converted ARGB32_Premultiplied -> ARGB32 (%d ms)\n", time.elapsed()); #endif } break; @@ -2236,20 +2439,17 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G ? QImage::Format_ARGB32_Premultiplied : QImage::Format_ARGB32); #ifdef QGL_BIND_TEXTURE_DEBUG - printf(" - converting to 32-bit alpha format (%d ms)\n", time.elapsed()); + printf(" - converted to 32-bit alpha format (%d ms)\n", time.elapsed()); #endif } else { img = img.convertToFormat(QImage::Format_RGB32); #ifdef QGL_BIND_TEXTURE_DEBUG - printf(" - converting to 32-bit (%d ms)\n", time.elapsed()); + printf(" - converted to 32-bit (%d ms)\n", time.elapsed()); #endif } } if (options & QGLContext::InvertedYBindOption) { -#ifdef QGL_BIND_TEXTURE_DEBUG - printf(" - flipping bits over y (%d ms)\n", time.elapsed()); -#endif if (img.isDetached()) { int ipl = img.bytesPerLine() / 4; int h = img.height(); @@ -2266,17 +2466,20 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G // data twice. This version should only do it once. img = img.mirrored(); } +#ifdef QGL_BIND_TEXTURE_DEBUG + printf(" - flipped bits over y (%d ms)\n", time.elapsed()); +#endif } if (externalFormat == GL_RGBA) { -#ifdef QGL_BIND_TEXTURE_DEBUG - printf(" - doing byte swapping (%d ms)\n", time.elapsed()); -#endif // The only case where we end up with a depth different from // 32 in the switch above is for the RGB16 case, where we set // the format to GL_RGB Q_ASSERT(img.depth() == 32); qgl_byteSwapImage(img, pixel_type); +#ifdef QGL_BIND_TEXTURE_DEBUG + printf(" - did byte swapping (%d ms)\n", time.elapsed()); +#endif } #ifdef QT_OPENGL_ES // OpenGL/ES requires that the internal and external formats be @@ -2298,14 +2501,14 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G #ifndef QT_NO_DEBUG GLenum error = glGetError(); if (error != GL_NO_ERROR) { - qWarning(" - texture upload failed, error code 0x%x\n", error); + qWarning(" - texture upload failed, error code 0x%x, enum: %d (%x)\n", error, target, target); } #endif #ifdef QGL_BIND_TEXTURE_DEBUG static int totalUploadTime = 0; totalUploadTime += time.elapsed(); - printf(" - upload done in (%d ms) time=%d\n", time.elapsed(), totalUploadTime); + printf(" - upload done in %d ms, (accumulated: %d ms)\n", time.elapsed(), totalUploadTime); #endif @@ -2320,7 +2523,7 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G QGLTexture *QGLContextPrivate::textureCacheLookup(const qint64 key, GLenum target) { Q_Q(QGLContext); - QGLTexture *texture = QGLTextureCache::instance()->getTexture(key); + QGLTexture *texture = QGLTextureCache::instance()->getTexture(q, key); if (texture && texture->target == target && (texture->context == q || QGLContext::areSharing(q, texture->context))) { @@ -2335,7 +2538,7 @@ QGLTexture *QGLContextPrivate::bindTexture(const QPixmap &pixmap, GLenum target, { Q_Q(QGLContext); QPixmapData *pd = pixmap.pixmapData(); -#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL) +#if !defined(QT_OPENGL_ES_1) if (target == GL_TEXTURE_2D && pd->classId() == QPixmapData::OpenGLClass) { const QGLPixmapData *data = static_cast<const QGLPixmapData *>(pd); @@ -2360,9 +2563,10 @@ QGLTexture *QGLContextPrivate::bindTexture(const QPixmap &pixmap, GLenum target, // Try to use texture_from_pixmap const QX11Info *xinfo = qt_x11Info(paintDevice); if (pd->classId() == QPixmapData::X11Class && pd->pixelType() == QPixmapData::PixmapType - && xinfo && xinfo->screen() == pixmap.x11Info().screen()) + && xinfo && xinfo->screen() == pixmap.x11Info().screen() + && target == GL_TEXTURE_2D) { - texture = bindTextureFromNativePixmap(pd, key, options); + texture = bindTextureFromNativePixmap(const_cast<QPixmap*>(&pixmap), key, options); if (texture) { texture->options |= QGLContext::MemoryManagedBindOption; texture->boundPixmap = pd; @@ -2371,8 +2575,15 @@ QGLTexture *QGLContextPrivate::bindTexture(const QPixmap &pixmap, GLenum target, } #endif - if (!texture) - texture = bindTexture(pixmap.toImage(), target, format, key, options); + if (!texture) { + QImage image = pixmap.toImage(); + // If the system depth is 16 and the pixmap doesn't have an alpha channel + // then we convert it to RGB16 in the hope that it gets uploaded as a 16 + // bit texture which is much faster to access than a 32-bit one. + if (pixmap.depth() == 16 && !image.hasAlphaChannel() ) + image = image.convertToFormat(QImage::Format_RGB16); + texture = bindTexture(image, target, format, key, options); + } // NOTE: bindTexture(const QImage&, GLenum, GLint, const qint64, bool) should never return null Q_ASSERT(texture); @@ -2465,7 +2676,7 @@ GLuint QGLContext::bindTexture(const QImage &image, GLenum target, GLint format, return 0; Q_D(QGLContext); - QGLTexture *texture = d->bindTexture(image, target, format, false, options); + QGLTexture *texture = d->bindTexture(image, target, format, options); return texture->id; } @@ -2477,7 +2688,7 @@ GLuint QGLContext::bindTexture(const QImage &image, QMacCompatGLenum target, QMa return 0; Q_D(QGLContext); - QGLTexture *texture = d->bindTexture(image, GLenum(target), GLint(format), false, DefaultBindOption); + QGLTexture *texture = d->bindTexture(image, GLenum(target), GLint(format), DefaultBindOption); return texture->id; } @@ -2489,7 +2700,7 @@ GLuint QGLContext::bindTexture(const QImage &image, QMacCompatGLenum target, QMa return 0; Q_D(QGLContext); - QGLTexture *texture = d->bindTexture(image, GLenum(target), GLint(format), false, options); + QGLTexture *texture = d->bindTexture(image, GLenum(target), GLint(format), options); return texture->id; } #endif @@ -2587,41 +2798,41 @@ void QGLContext::deleteTexture(QMacCompatGLuint id) } #endif -void qt_add_rect_to_array(const QRectF &r, q_vertexType *array) +void qt_add_rect_to_array(const QRectF &r, GLfloat *array) { qreal left = r.left(); qreal right = r.right(); qreal top = r.top(); qreal bottom = r.bottom(); - array[0] = f2vt(left); - array[1] = f2vt(top); - array[2] = f2vt(right); - array[3] = f2vt(top); - array[4] = f2vt(right); - array[5] = f2vt(bottom); - array[6] = f2vt(left); - array[7] = f2vt(bottom); + array[0] = left; + array[1] = top; + array[2] = right; + array[3] = top; + array[4] = right; + array[5] = bottom; + array[6] = left; + array[7] = bottom; } -void qt_add_texcoords_to_array(qreal x1, qreal y1, qreal x2, qreal y2, q_vertexType *array) +void qt_add_texcoords_to_array(qreal x1, qreal y1, qreal x2, qreal y2, GLfloat *array) { - array[0] = f2vt(x1); - array[1] = f2vt(y1); - array[2] = f2vt(x2); - array[3] = f2vt(y1); - array[4] = f2vt(x2); - array[5] = f2vt(y2); - array[6] = f2vt(x1); - array[7] = f2vt(y2); + array[0] = x1; + array[1] = y1; + array[2] = x2; + array[3] = y1; + array[4] = x2; + array[5] = y2; + array[6] = x1; + array[7] = y2; } #if !defined(QT_OPENGL_ES_2) static void qDrawTextureRect(const QRectF &target, GLint textureWidth, GLint textureHeight, GLenum textureTarget) { - q_vertexType tx = f2vt(1); - q_vertexType ty = f2vt(1); + GLfloat tx = 1.0f; + GLfloat ty = 1.0f; #ifdef QT_OPENGL_ES Q_UNUSED(textureWidth); @@ -2634,20 +2845,20 @@ static void qDrawTextureRect(const QRectF &target, GLint textureWidth, GLint tex glGetTexLevelParameteriv(textureTarget, 0, GL_TEXTURE_HEIGHT, &textureHeight); } - tx = f2vt(textureWidth); - ty = f2vt(textureHeight); + tx = GLfloat(textureWidth); + ty = GLfloat(textureHeight); } #endif - q_vertexType texCoordArray[4*2] = { + GLfloat texCoordArray[4*2] = { 0, ty, tx, ty, tx, 0, 0, 0 }; - q_vertexType vertexArray[4*2]; + GLfloat vertexArray[4*2]; qt_add_rect_to_array(target, vertexArray); - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray); - glTexCoordPointer(2, q_vertexTypeEnum, 0, texCoordArray); + glVertexPointer(2, GL_FLOAT, 0, vertexArray); + glTexCoordPointer(2, GL_FLOAT, 0, texCoordArray); glEnableClientState(GL_VERTEX_ARRAY); glEnableClientState(GL_TEXTURE_COORD_ARRAY); @@ -2662,14 +2873,38 @@ static void qDrawTextureRect(const QRectF &target, GLint textureWidth, GLint tex /*! \since 4.4 - Draws the given texture, \a textureId, to the given target rectangle, - \a target, in OpenGL model space. The \a textureTarget should be a 2D - texture target. + This function supports the following use cases: + + \list + \i On OpenGL and OpenGL ES 1.x it draws the given texture, \a textureId, + to the given target rectangle, \a target, in OpenGL model space. The + \a textureTarget should be a 2D texture target. + \i On OpenGL and OpenGL ES 2.x, if a painter is active, not inside a + beginNativePainting / endNativePainting block, and uses the + engine with type QPaintEngine::OpenGL2, the function will draw the given + texture, \a textureId, to the given target rectangle, \a target, + respecting the current painter state. This will let you draw a texture + with the clip, transform, render hints, and composition mode set by the + painter. Note that the texture target needs to be GL_TEXTURE_2D for this + use case, and that this is the only supported use case under OpenGL ES 2.x. + \endlist - \note This function is not supported under OpenGL/ES 2.0. */ void QGLContext::drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget) { +#if !defined(QT_OPENGL_ES) || defined(QT_OPENGL_ES_2) + if (d_ptr->active_engine && + d_ptr->active_engine->type() == QPaintEngine::OpenGL2) { + QGL2PaintEngineEx *eng = static_cast<QGL2PaintEngineEx*>(d_ptr->active_engine); + if (!eng->isNativePaintingActive()) { + QRectF src(0, 0, target.width(), target.height()); + QSize size(target.width(), target.height()); + if (eng->drawTexture(target, textureId, size, src)) + return; + } + } +#endif + #ifndef QT_OPENGL_ES_2 #ifdef QT_OPENGL_ES if (textureTarget != GL_TEXTURE_2D) { @@ -2698,7 +2933,7 @@ void QGLContext::drawTexture(const QRectF &target, GLuint textureId, GLenum text Q_UNUSED(target); Q_UNUSED(textureId); Q_UNUSED(textureTarget); - qWarning("drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget) not supported with OpenGL ES/2.0"); + qWarning("drawTexture() with OpenGL ES 2.0 requires an active OpenGL2 paint engine"); #endif } @@ -2713,20 +2948,33 @@ void QGLContext::drawTexture(const QRectF &target, QMacCompatGLuint textureId, Q /*! \since 4.4 - Draws the given texture at the given \a point in OpenGL model - space. The \a textureTarget should be a 2D texture target. + This function supports the following use cases: + + \list + \i By default it draws the given texture, \a textureId, + at the given \a point in OpenGL model space. The + \a textureTarget should be a 2D texture target. + \i If a painter is active, not inside a + beginNativePainting / endNativePainting block, and uses the + engine with type QPaintEngine::OpenGL2, the function will draw the given + texture, \a textureId, at the given \a point, + respecting the current painter state. This will let you draw a texture + with the clip, transform, render hints, and composition mode set by the + painter. Note that the texture target needs to be GL_TEXTURE_2D for this + use case. + \endlist - \note This function is not supported under OpenGL/ES. + \note This function is not supported under any version of OpenGL ES. */ void QGLContext::drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget) { - // this would be ok on OpenGL ES 2.0, but currently we don't have a define for that #ifdef QT_OPENGL_ES Q_UNUSED(point); Q_UNUSED(textureId); Q_UNUSED(textureTarget); qWarning("drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget) not supported with OpenGL ES, use rect version instead"); #else + const bool wasEnabled = glIsEnabled(GL_TEXTURE_2D); GLint oldTexture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &oldTexture); @@ -2740,6 +2988,18 @@ void QGLContext::drawTexture(const QPointF &point, GLuint textureId, GLenum text glGetTexLevelParameteriv(textureTarget, 0, GL_TEXTURE_WIDTH, &textureWidth); glGetTexLevelParameteriv(textureTarget, 0, GL_TEXTURE_HEIGHT, &textureHeight); + if (d_ptr->active_engine && + d_ptr->active_engine->type() == QPaintEngine::OpenGL2) { + QGL2PaintEngineEx *eng = static_cast<QGL2PaintEngineEx*>(d_ptr->active_engine); + if (!eng->isNativePaintingActive()) { + QRectF dest(point, QSizeF(textureWidth, textureHeight)); + QRectF src(0, 0, textureWidth, textureHeight); + QSize size(textureWidth, textureHeight); + if (eng->drawTexture(dest, textureId, size, src)) + return; + } + } + qDrawTextureRect(QRectF(point, QSizeF(textureWidth, textureHeight)), textureWidth, textureHeight, textureTarget); if (!wasEnabled) @@ -3200,6 +3460,7 @@ void QGLContextPrivate::setCurrentContext(QGLContext *context) */ + /***************************************************************************** QGLWidget implementation *****************************************************************************/ @@ -3320,6 +3581,15 @@ void QGLContextPrivate::setCurrentContext(QGLContext *context) One approach to doing this is shown in the \l{Overpainting Example}{Overpainting} example. + \section1 Threading + + It is possible to render into a QGLWidget from another thread, but it + requires that all access to the GL context is safe guarded. The Qt GUI + thread will try to use the context in resizeEvent and paintEvent, so in + order for threaded rendering using a GL widget to work, these functions + need to be intercepted in the GUI thread and handled accordingly in the + application. + \e{OpenGL is a trademark of Silicon Graphics, Inc. in the United States and other countries.} @@ -3447,8 +3717,10 @@ QGLWidget::~QGLWidget() bool doRelease = (glcx && glcx->windowCreated()); #endif delete d->glcx; + d->glcx = 0; #if defined(Q_WS_WIN) delete d->olcx; + d->olcx = 0; #endif #if defined(GLX_MESA_release_buffers) && defined(QGL_USE_MESA_EXT) if (doRelease) @@ -3850,7 +4122,7 @@ bool QGLWidget::event(QEvent *e) } } -#if defined(QT_OPENGL_ES) +#ifndef QT_NO_EGL // A re-parent is likely to destroy the X11 window and re-create it. It is important // that we free the EGL surface _before_ the winID changes - otherwise we can leak. if (e->type() == QEvent::ParentAboutToChange) @@ -3859,7 +4131,7 @@ bool QGLWidget::event(QEvent *e) if ((e->type() == QEvent::ParentChange) || (e->type() == QEvent::WindowStateChange)) { // The window may have been re-created during re-parent or state change - if so, the EGL // surface will need to be re-created. - d->recreateEglSurface(false); + d->recreateEglSurface(); } #endif #elif defined(Q_WS_WIN) @@ -4765,11 +5037,8 @@ void QGLWidget::deleteTexture(QMacCompatGLuint id) /*! \since 4.4 - Draws the given texture, \a textureId to the given target rectangle, - \a target, in OpenGL model space. The \a textureTarget should be a 2D - texture target. - - Equivalent to the corresponding QGLContext::drawTexture(). + Calls the corresponding QGLContext::drawTexture() on + this widget's context. */ void QGLWidget::drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget) { @@ -4789,10 +5058,8 @@ void QGLWidget::drawTexture(const QRectF &target, QMacCompatGLuint textureId, QM /*! \since 4.4 - Draws the given texture, \a textureId, at the given \a point in OpenGL - model space. The \a textureTarget should be a 2D texture target. - - Equivalent to the corresponding QGLContext::drawTexture(). + Calls the corresponding QGLContext::drawTexture() on + this widget's context. */ void QGLWidget::drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget) { @@ -4809,7 +5076,7 @@ void QGLWidget::drawTexture(const QPointF &point, QMacCompatGLuint textureId, QM } #endif -#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL) +#ifndef QT_OPENGL_ES_1 Q_GLOBAL_STATIC(QGL2PaintEngineEx, qt_gl_2_engine) #endif @@ -4819,7 +5086,7 @@ Q_GLOBAL_STATIC(QOpenGLPaintEngine, qt_gl_engine) Q_OPENGL_EXPORT QPaintEngine* qt_qgl_paint_engine() { -#if defined(QT_OPENGL_ES_1) || defined(QT_OPENGL_ES_1_CL) +#if defined(QT_OPENGL_ES_1) return qt_gl_engine(); #elif defined(QT_OPENGL_ES_2) return qt_gl_2_engine(); @@ -4937,12 +5204,14 @@ QGLExtensions::Extensions QGLExtensions::currentContextExtensions() glExtensions |= NVFloatBuffer; if (extensions.match("GL_ARB_pixel_buffer_object")) glExtensions |= PixelBufferObject; + if (extensions.match("GL_IMG_texture_format_BGRA8888")) + glExtensions |= BGRATextureFormat; #if defined(QT_OPENGL_ES_2) glExtensions |= FramebufferObject; glExtensions |= GenerateMipmap; glExtensions |= FragmentShader; #endif -#if defined(QT_OPENGL_ES_1) || defined(QT_OPENGL_ES_1_CL) +#if defined(QT_OPENGL_ES_1) if (extensions.match("GL_OES_framebuffer_object")) glExtensions |= FramebufferObject; #endif @@ -4968,6 +5237,20 @@ QGLExtensions::Extensions QGLExtensions::currentContextExtensions() return glExtensions; } + +class QGLDefaultExtensions +{ +public: + QGLDefaultExtensions() { + QGLTemporaryContext tempContext; + extensions = QGLExtensions::currentContextExtensions(); + } + + QGLExtensions::Extensions extensions; +}; + +Q_GLOBAL_STATIC(QGLDefaultExtensions, qtDefaultExtensions) + /* Returns the GL extensions for the current QGLContext. If there is no current QGLContext, a default context will be created and the extensions @@ -4975,34 +5258,19 @@ QGLExtensions::Extensions QGLExtensions::currentContextExtensions() */ QGLExtensions::Extensions QGLExtensions::glExtensions() { - QGLTemporaryContext *tmpContext = 0; - static bool cachedDefault = false; - static Extensions defaultExtensions = 0; + Extensions extensionFlags = 0; QGLContext *currentCtx = const_cast<QGLContext *>(QGLContext::currentContext()); if (currentCtx && currentCtx->d_func()->extension_flags_cached) return currentCtx->d_func()->extension_flags; if (!currentCtx) { - if (cachedDefault) { - return defaultExtensions; - } else { - tmpContext = new QGLTemporaryContext; - cachedDefault = true; - } - } - - Extensions extensionFlags = currentContextExtensions(); - if (currentCtx) { + extensionFlags = qtDefaultExtensions()->extensions; + } else { + extensionFlags = currentContextExtensions(); currentCtx->d_func()->extension_flags_cached = true; currentCtx->d_func()->extension_flags = extensionFlags; - } else { - defaultExtensions = extensionFlags; } - - if (tmpContext) - delete tmpContext; - return extensionFlags; } @@ -5037,11 +5305,17 @@ Q_OPENGL_EXPORT void qt_set_gl_library_name(const QString& name) Q_OPENGL_EXPORT const QString qt_gl_library_name() { if (qt_gl_lib_name()->isNull()) { -#if defined(Q_WS_X11) || defined(Q_WS_QWS) - return QLatin1String("GL"); -#else // Q_WS_MAC +#ifdef Q_WS_MAC return QLatin1String("/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib"); -#endif +#else +# if defined(QT_OPENGL_ES_1) + return QLatin1String("GLES_CM"); +# elif defined(QT_OPENGL_ES_2) + return QLatin1String("GLESv2"); +# else + return QLatin1String("GL"); +# endif +#endif // defined Q_WS_MAC } return *qt_gl_lib_name(); } diff --git a/src/opengl/qgl.h b/src/opengl/qgl.h index 1a04ff9..f85cad5 100644 --- a/src/opengl/qgl.h +++ b/src/opengl/qgl.h @@ -57,7 +57,7 @@ QT_BEGIN_HEADER #if defined(Q_WS_MAC) # include <OpenGL/gl.h> # include <OpenGL/glu.h> -#elif defined(QT_OPENGL_ES_1) || defined(QT_OPENGL_ES_1_CL) +#elif defined(QT_OPENGL_ES_1) # include <GLES/gl.h> #ifndef GL_DOUBLE # define GL_DOUBLE GL_FLOAT @@ -144,6 +144,7 @@ namespace QGL DirectRendering = 0x0080, HasOverlay = 0x0100, SampleBuffers = 0x0200, + DeprecatedFunctions = 0x0400, SingleBuffer = DoubleBuffer << 16, NoDepthBuffer = DepthBuffer << 16, ColorIndex = Rgba << 16, @@ -153,7 +154,8 @@ namespace QGL NoStereoBuffers = StereoBuffers << 16, IndirectRendering = DirectRendering << 16, NoOverlay = HasOverlay << 16, - NoSampleBuffers = SampleBuffers << 16 + NoSampleBuffers = SampleBuffers << 16, + NoDeprecatedFunctions = DeprecatedFunctions << 16 }; Q_DECLARE_FLAGS(FormatOptions, FormatOption) } @@ -235,7 +237,20 @@ public: static bool hasOpenGL(); static bool hasOpenGLOverlays(); - enum OpenGLVersionFlag { + void setVersion(int major, int minor); + int majorVersion() const; + int minorVersion() const; + + enum OpenGLContextProfile { + NoProfile, + CoreProfile, + CompatibilityProfile + }; + + void setProfile(OpenGLContextProfile profile); + OpenGLContextProfile profile() const; + + enum OpenGLVersionFlag { OpenGL_Version_None = 0x00000000, OpenGL_Version_1_1 = 0x00000001, OpenGL_Version_1_2 = 0x00000002, @@ -249,7 +264,11 @@ public: OpenGL_ES_Common_Version_1_1 = 0x00000200, OpenGL_ES_CommonLite_Version_1_1 = 0x00000400, OpenGL_ES_Version_2_0 = 0x00000800, - OpenGL_Version_3_0 = 0x00001000 + OpenGL_Version_3_0 = 0x00001000, + OpenGL_Version_3_1 = 0x00002000, + OpenGL_Version_3_2 = 0x00004000, + OpenGL_Version_3_3 = 0x00008000, + OpenGL_Version_4_0 = 0x00010000 }; Q_DECLARE_FLAGS(OpenGLVersionFlags, OpenGLVersionFlag) @@ -262,6 +281,9 @@ private: friend Q_OPENGL_EXPORT bool operator==(const QGLFormat&, const QGLFormat&); friend Q_OPENGL_EXPORT bool operator!=(const QGLFormat&, const QGLFormat&); +#ifndef QT_NO_DEBUG_STREAM + friend Q_OPENGL_EXPORT QDebug operator<<(QDebug, const QGLFormat &); +#endif }; Q_DECLARE_OPERATORS_FOR_FLAGS(QGLFormat::OpenGLVersionFlags) @@ -269,6 +291,10 @@ Q_DECLARE_OPERATORS_FOR_FLAGS(QGLFormat::OpenGLVersionFlags) Q_OPENGL_EXPORT bool operator==(const QGLFormat&, const QGLFormat&); Q_OPENGL_EXPORT bool operator!=(const QGLFormat&, const QGLFormat&); +#ifndef QT_NO_DEBUG_STREAM +Q_OPENGL_EXPORT QDebug operator<<(QDebug, const QGLFormat &); +#endif + class Q_OPENGL_EXPORT QGLContext { Q_DECLARE_PRIVATE(QGLContext) @@ -359,7 +385,7 @@ protected: #if defined(Q_WS_WIN) virtual int choosePixelFormat(void* pfd, HDC pdc); #endif -#if defined(Q_WS_X11) && !defined(QT_OPENGL_ES) +#if defined(Q_WS_X11) && defined(QT_NO_EGL) virtual void* tryVisual(const QGLFormat& f, int bufDepth = 1); virtual void* chooseVisual(); #endif @@ -414,7 +440,9 @@ private: friend class QGLFramebufferObjectPrivate; friend class QGLFBOGLPaintDevice; friend class QGLPaintDevice; + friend class QGLWidgetGLPaintDevice; friend class QX11GLPixmapData; + friend class QX11GLSharedContexts; private: Q_DISABLE_COPY(QGLContext) }; diff --git a/src/opengl/qgl_cl_p.h b/src/opengl/qgl_cl_p.h deleted file mode 100644 index 82b492b..0000000 --- a/src/opengl/qgl_cl_p.h +++ /dev/null @@ -1,141 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the Technology Preview License Agreement accompanying -** this package. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - - -#ifdef QT_OPENGL_ES_1_CL - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists for the convenience -// of the QGLWidget class. This header file may change from -// version to version without notice, or even be removed. -// -// We mean it. -// - -QT_BEGIN_NAMESPACE - -inline void glTexParameterf (GLenum target, GLenum pname, GLfloat param) -{ - glTexParameterx(target, pname, FLOAT2X(param)); -} -inline void glClearColor (GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha) -{ - glClearColorx(FLOAT2X(red) ,FLOAT2X(green), FLOAT2X(blue), FLOAT2X(alpha)); -} -inline void glColor4f (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha) -{ - glColor4x(FLOAT2X(red) ,FLOAT2X(green), FLOAT2X(blue), FLOAT2X(alpha)); -} - -inline void glOrthof (GLfloat left, GLfloat right, GLfloat bottom, GLfloat top, GLfloat zNear, GLfloat zFar) -{ - glOrthox(FLOAT2X(left), FLOAT2X(right), FLOAT2X(bottom), FLOAT2X(top), FLOAT2X(zNear), FLOAT2X(zFar)); -} - -inline void glPointSize (GLfloat size) -{ - glPointSizex(FLOAT2X(size)); -} - -inline void glPolygonOffset (GLfloat factor, GLfloat units) -{ - glPolygonOffsetx (FLOAT2X(factor), FLOAT2X(units)); -} - -inline void glRotatef (GLfloat angle, GLfloat x, GLfloat y, GLfloat z) -{ - glRotatex(FLOAT2X(angle), FLOAT2X(x), FLOAT2X(y), FLOAT2X(z)); -} - -inline void glTranslatef (GLfloat x, GLfloat y, GLfloat z) -{ - glTranslatex(FLOAT2X(x) ,FLOAT2X(y) ,FLOAT2X(z)); -} - -inline void glNormal3f (GLfloat nx, GLfloat ny, GLfloat nz) -{ - glNormal3x(FLOAT2X(nx), FLOAT2X(ny), FLOAT2X(nz)); -} - -inline void glScalef(GLfloat x, GLfloat y, GLfloat z) -{ - glScalex(FLOAT2X(x), FLOAT2X(y), FLOAT2X(z)); -} - -inline void glClearDepthf (GLclampf depth) -{ - glClearDepthx(FLOAT2X(depth)); -} - -inline void glAlphaFunc (GLenum func, GLclampf ref) -{ - glAlphaFuncx(func, FLOAT2X(ref)); -} - -inline void glLoadMatrixf (const GLfloat *_m) -{ - GLfixed m[16]; - for (int i =0; i < 16; i++) - m[i] = FLOAT2X(_m[i]); - glLoadMatrixx(m); -} - -inline void glMultMatrixf (const GLfloat *_m) -{ - GLfixed m[16]; - for (int i =0; i < 16; i++) - m[i] = FLOAT2X(_m[i]); - glMultMatrixx (m); -} - - -inline void glLineWidth (GLfloat width) -{ - glLineWidthx(FLOAT2X(width)); -} - -QT_END_NAMESPACE - -#endif //QT_OPENGL_ES_1_CL - diff --git a/src/opengl/qgl_egl.cpp b/src/opengl/qgl_egl.cpp index 3addea1..3763926 100644 --- a/src/opengl/qgl_egl.cpp +++ b/src/opengl/qgl_egl.cpp @@ -40,93 +40,114 @@ ****************************************************************************/ #include <QtOpenGL/qgl.h> +#include <QtOpenGL/qglpixelbuffer.h> #include "qgl_p.h" #include "qgl_egl_p.h" +#include "qglpixelbuffer_p.h" + +#ifdef Q_WS_X11 +#include <QtGui/private/qpixmap_x11_p.h> +#endif QT_BEGIN_NAMESPACE -// Set device configuration attributes from a QGLFormat instance. -void qt_egl_set_format(QEglProperties& props, int deviceType, const QGLFormat& f) -{ - if (deviceType == QInternal::Pixmap || deviceType == QInternal::Image) - props.setValue(EGL_SURFACE_TYPE, EGL_PIXMAP_BIT); - else if (deviceType == QInternal::Pbuffer) - props.setValue(EGL_SURFACE_TYPE, EGL_PBUFFER_BIT); - else - props.setValue(EGL_SURFACE_TYPE, EGL_WINDOW_BIT); - - // Set the pixel format to that contained in the QGLFormat - // if the system hasn't already chosen a fixed format to - // match the pixmap, widget, etc. - if (props.value(EGL_RED_SIZE) == 0 || f.redBufferSize() != -1) - props.setValue(EGL_RED_SIZE, f.redBufferSize() == -1 ? 1 : f.redBufferSize()); - if (props.value(EGL_GREEN_SIZE) == 0 || f.greenBufferSize() != -1) - props.setValue(EGL_GREEN_SIZE, f.greenBufferSize() == -1 ? 1 : f.greenBufferSize()); - if (props.value(EGL_BLUE_SIZE) == 0 || f.blueBufferSize() != -1) - props.setValue(EGL_BLUE_SIZE, f.blueBufferSize() == -1 ? 1 : f.blueBufferSize()); - if (f.alpha()) { - if (props.value(EGL_ALPHA_SIZE) == 0 || f.alphaBufferSize() != -1) - props.setValue(EGL_ALPHA_SIZE, f.alphaBufferSize() == -1 ? 1 : f.alphaBufferSize()); - } +void qt_eglproperties_set_glformat(QEglProperties& eglProperties, const QGLFormat& glFormat) +{ + int redSize = glFormat.redBufferSize(); + int greenSize = glFormat.greenBufferSize(); + int blueSize = glFormat.blueBufferSize(); + int alphaSize = glFormat.alphaBufferSize(); + int depthSize = glFormat.depthBufferSize(); + int stencilSize = glFormat.stencilBufferSize(); + int sampleCount = glFormat.samples(); - if (f.depth()) - props.setValue(EGL_DEPTH_SIZE, f.depthBufferSize() == -1 ? 1 : f.depthBufferSize()); - if (f.stencil()) - props.setValue(EGL_STENCIL_SIZE, f.stencilBufferSize() == -1 ? 1 : f.stencilBufferSize()); - if (f.sampleBuffers()) { - props.setValue(EGL_SAMPLE_BUFFERS, 1); - props.setValue(EGL_SAMPLES, f.samples() == -1 ? 1 : f.samples()); - } else { - props.setValue(EGL_SAMPLE_BUFFERS, 0); - } - if (deviceType == QInternal::Widget) - props.setValue(EGL_LEVEL, f.plane()); -} + // QGLFormat uses a magic value of -1 to indicate "don't care", even when a buffer of that + // type has been requested. So we must check QGLFormat's booleans too if size is -1: + if (glFormat.alpha() && alphaSize <= 0) + alphaSize = 1; + if (glFormat.depth() && depthSize <= 0) + depthSize = 1; + if (glFormat.stencil() && stencilSize <= 0) + stencilSize = 1; + if (glFormat.sampleBuffers() && sampleCount <= 0) + sampleCount = 1; -// Updates "format" with the parameters of the selected configuration. -void qt_egl_update_format(const QEglContext& context, QGLFormat& format) -{ - EGLint value = 0; - - if (context.configAttrib(EGL_RED_SIZE, &value)) - format.setRedBufferSize(value); - if (context.configAttrib(EGL_GREEN_SIZE, &value)) - format.setGreenBufferSize(value); - if (context.configAttrib(EGL_BLUE_SIZE, &value)) - format.setBlueBufferSize(value); - if (context.configAttrib(EGL_ALPHA_SIZE, &value)) { - format.setAlpha(value != 0); - if (format.alpha()) - format.setAlphaBufferSize(value); - } + // We want to make sure 16-bit configs are chosen over 32-bit configs as they will provide + // the best performance. The EGL config selection algorithm is a bit stange in this regard: + // The selection criteria for EGL_BUFFER_SIZE is "AtLeast", so we can't use it to discard + // 32-bit configs completely from the selection. So it then comes to the sorting algorithm. + // The red/green/blue sizes have a sort priority of 3, so they are sorted by first. The sort + // order is special and described as "by larger _total_ number of color bits.". So EGL will + // put 32-bit configs in the list before the 16-bit configs. However, the spec also goes on + // to say "If the requested number of bits in attrib_list for a particular component is 0, + // then the number of bits for that component is not considered". This part of the spec also + // seems to imply that setting the red/green/blue bits to zero means none of the components + // are considered and EGL disregards the entire sorting rule. It then looks to the next + // highest priority rule, which is EGL_BUFFER_SIZE. Despite the selection criteria being + // "AtLeast" for EGL_BUFFER_SIZE, it's sort order is "smaller" meaning 16-bit configs are + // put in the list before 32-bit configs. So, to make sure 16-bit is preffered over 32-bit, + // we must set the red/green/blue sizes to zero. This has an unfortunate consequence that + // if the application sets the red/green/blue size to 5/6/5 on the QGLFormat, they will + // probably get a 32-bit config, even when there's an RGB565 config avaliable. Oh well. - if (context.configAttrib(EGL_DEPTH_SIZE, &value)) { - format.setDepth(value != 0); - if (format.depth()) - format.setDepthBufferSize(value); - } + // Now normalize the values so -1 becomes 0 + redSize = redSize > 0 ? redSize : 0; + greenSize = greenSize > 0 ? greenSize : 0; + blueSize = blueSize > 0 ? blueSize : 0; + alphaSize = alphaSize > 0 ? alphaSize : 0; + depthSize = depthSize > 0 ? depthSize : 0; + stencilSize = stencilSize > 0 ? stencilSize : 0; + sampleCount = sampleCount > 0 ? sampleCount : 0; - if (context.configAttrib(EGL_LEVEL, &value)) - format.setPlane(value); + eglProperties.setValue(EGL_RED_SIZE, redSize); + eglProperties.setValue(EGL_GREEN_SIZE, greenSize); + eglProperties.setValue(EGL_BLUE_SIZE, blueSize); + eglProperties.setValue(EGL_ALPHA_SIZE, alphaSize); + eglProperties.setValue(EGL_DEPTH_SIZE, depthSize); + eglProperties.setValue(EGL_STENCIL_SIZE, stencilSize); + eglProperties.setValue(EGL_SAMPLES, sampleCount); + eglProperties.setValue(EGL_SAMPLE_BUFFERS, sampleCount ? 1 : 0); +} - if (context.configAttrib(EGL_SAMPLE_BUFFERS, &value)) { - format.setSampleBuffers(value != 0); - if (format.sampleBuffers()) { - context.configAttrib(EGL_SAMPLES, &value); - format.setSamples(value); - } - } +// Updates "format" with the parameters of the selected configuration. +void qt_glformat_from_eglconfig(QGLFormat& format, const EGLConfig config) +{ + EGLint redSize = 0; + EGLint greenSize = 0; + EGLint blueSize = 0; + EGLint alphaSize = 0; + EGLint depthSize = 0; + EGLint stencilSize = 0; + EGLint sampleCount = 0; + EGLint level = 0; - if (context.configAttrib(EGL_STENCIL_SIZE, &value)) { - format.setStencil(value != 0); - if (format.stencil()) - format.setStencilBufferSize(value); - } + EGLDisplay display = QEgl::display(); + eglGetConfigAttrib(display, config, EGL_RED_SIZE, &redSize); + eglGetConfigAttrib(display, config, EGL_GREEN_SIZE, &greenSize); + eglGetConfigAttrib(display, config, EGL_BLUE_SIZE, &blueSize); + eglGetConfigAttrib(display, config, EGL_ALPHA_SIZE, &alphaSize); + eglGetConfigAttrib(display, config, EGL_DEPTH_SIZE, &depthSize); + eglGetConfigAttrib(display, config, EGL_STENCIL_SIZE, &stencilSize); + eglGetConfigAttrib(display, config, EGL_SAMPLES, &sampleCount); + eglGetConfigAttrib(display, config, EGL_LEVEL, &level); + + format.setRedBufferSize(redSize); + format.setGreenBufferSize(greenSize); + format.setBlueBufferSize(blueSize); + format.setAlphaBufferSize(alphaSize); + format.setDepthBufferSize(depthSize); + format.setStencilBufferSize(stencilSize); + format.setSamples(sampleCount); + format.setPlane(level); + format.setDirectRendering(true); // All EGL contexts are direct-rendered + format.setRgba(true); // EGL doesn't support colour index rendering + format.setStereo(false); // EGL doesn't support stereo buffers + format.setAccumBufferSize(0); // EGL doesn't support accululation buffers // Clear the EGL error state because some of the above may // have errored out because the attribute is not applicable // to the surface type. Such errors don't matter. - context.clearError(); + eglGetError(); } bool QGLFormat::hasOpenGL() @@ -141,10 +162,11 @@ void QGLContext::reset() return; d->cleanup(); doneCurrent(); - if (d->eglContext) { + if (d->eglContext && d->ownsEglContext) { d->destroyEglSurfaceForDevice(); delete d->eglContext; } + d->ownsEglContext = false; d->eglContext = 0; d->eglSurface = EGL_NO_SURFACE; d->crWin = false; @@ -158,13 +180,32 @@ void QGLContext::reset() void QGLContext::makeCurrent() { Q_D(QGLContext); - if (!d->valid || !d->eglContext || d->eglSurface == EGL_NO_SURFACE) { + if (!d->valid || !d->eglContext || d->eglSurfaceForDevice() == EGL_NO_SURFACE) { qWarning("QGLContext::makeCurrent(): Cannot make invalid context current"); return; } - if (d->eglContext->makeCurrent(d->eglSurface)) + if (d->eglContext->makeCurrent(d->eglSurfaceForDevice())) { QGLContextPrivate::setCurrentContext(this); + if (!d->workaroundsCached) { + d->workaroundsCached = true; + const char *renderer = reinterpret_cast<const char *>(glGetString(GL_RENDERER)); + if (renderer && (strstr(renderer, "SGX") || strstr(renderer, "MBX"))) { + // PowerVR MBX/SGX chips needs to clear all buffers when starting to render + // a new frame, otherwise there will be a performance penalty to pay for + // each frame. + d->workaround_needsFullClearOnEveryFrame = true; + + // Older PowerVR SGX drivers (like the one in the N900) have a + // bug which prevents glCopyTexSubImage2D() to work with a POT + // or GL_ALPHA texture bound to an FBO. The only way to + // identify that driver is to check the EGL version number for it. + const char *egl_version = eglQueryString(d->eglContext->display(), EGL_VERSION); + if (egl_version && strstr(egl_version, "1.3")) + d->workaround_brokenFBOReadBack = true; + } + } + } } void QGLContext::doneCurrent() @@ -183,7 +224,7 @@ void QGLContext::swapBuffers() const if (!d->valid || !d->eglContext) return; - d->eglContext->swapBuffers(d->eglSurface); + d->eglContext->swapBuffers(d->eglSurfaceForDevice()); } void QGLContextPrivate::destroyEglSurfaceForDevice() @@ -191,21 +232,56 @@ void QGLContextPrivate::destroyEglSurfaceForDevice() if (eglSurface != EGL_NO_SURFACE) { #ifdef Q_WS_X11 // Make sure we don't call eglDestroySurface on a surface which - // was created for a different winId: - if (paintDevice->devType() == QInternal::Widget) { - QGLWidget* w = static_cast<QGLWidget*>(paintDevice); - - if (w->d_func()->eglSurfaceWindowId == w->winId()) - eglDestroySurface(eglContext->display(), eglSurface); - else - qWarning("WARNING: Potential EGL surface leak!"); - } else + // was created for a different winId. This applies only to QGLWidget + // paint device, so make sure this is the one we're operating on + // (as opposed to a QGLWindowSurface use case). + if (paintDevice && paintDevice->devType() == QInternal::Widget) { + QWidget *w = static_cast<QWidget *>(paintDevice); + if (QGLWidget *wgl = qobject_cast<QGLWidget *>(w)) { + if (wgl->d_func()->eglSurfaceWindowId != wgl->winId()) { + qWarning("WARNING: Potential EGL surface leak! Not destroying surface."); + return; + } + } + } #endif - eglDestroySurface(eglContext->display(), eglSurface); + eglDestroySurface(eglContext->display(), eglSurface); eglSurface = EGL_NO_SURFACE; } } +EGLSurface QGLContextPrivate::eglSurfaceForDevice() const +{ + // If a QPixmapData had to create the QGLContext, we don't have a paintDevice + if (!paintDevice) + return eglSurface; + +#ifdef Q_WS_X11 + if (paintDevice->devType() == QInternal::Pixmap) { + QPixmapData *pmd = static_cast<QPixmap*>(paintDevice)->data_ptr().data(); + if (pmd->classId() == QPixmapData::X11Class) { + QX11PixmapData* x11PixmapData = static_cast<QX11PixmapData*>(pmd); + return (EGLSurface)x11PixmapData->gl_surface; + } + } +#endif + + if (paintDevice->devType() == QInternal::Pbuffer) { + QGLPixelBuffer* pbuf = static_cast<QGLPixelBuffer*>(paintDevice); + return pbuf->d_func()->pbuf; + } + + return eglSurface; +} + +void QGLContextPrivate::swapRegion(const QRegion *region) +{ + if (!valid || !eglContext) + return; + + eglContext->swapBuffersRegion2NOK(eglSurfaceForDevice(), region); +} + void QGLWidget::setMouseTracking(bool enable) { QWidget::setMouseTracking(enable); diff --git a/src/opengl/qgl_egl_p.h b/src/opengl/qgl_egl_p.h index c503724..85d7f32 100644 --- a/src/opengl/qgl_egl_p.h +++ b/src/opengl/qgl_egl_p.h @@ -54,14 +54,15 @@ // #include <QtGui/private/qegl_p.h> +#include <QtGui/private/qeglcontext_p.h> +#include <QtGui/private/qeglproperties_p.h> QT_BEGIN_NAMESPACE class QGLFormat; -void qt_egl_set_format(QEglProperties& props, int deviceType, const QGLFormat& f); -void qt_egl_update_format(const QEglContext& context, QGLFormat& format); -void qt_egl_add_platform_config(QEglProperties& props, QPaintDevice *device); +void qt_eglproperties_set_glformat(QEglProperties& props, const QGLFormat& format); +void qt_glformat_from_eglconfig(QGLFormat& format, const EGLConfig config); QT_END_NAMESPACE diff --git a/src/opengl/qgl_p.h b/src/opengl/qgl_p.h index 4facb65..32feacd 100644 --- a/src/opengl/qgl_p.h +++ b/src/opengl/qgl_p.h @@ -64,36 +64,8 @@ #include "qcache.h" #include "qglpaintdevice_p.h" -#ifndef QT_OPENGL_ES_1_CL -#define q_vertexType float -#define q_vertexTypeEnum GL_FLOAT -#define f2vt(f) (f) -#define vt2f(x) (x) -#define i2vt(i) (float(i)) -#else -#define FLOAT2X(f) (int( (f) * (65536))) -#define X2FLOAT(x) (float(x) / 65536.0f) -#define f2vt(f) FLOAT2X(f) -#define i2vt(i) ((i)*65536) -#define vt2f(x) X2FLOAT(x) -#define q_vertexType GLfixed -#define q_vertexTypeEnum GL_FIXED -#endif //QT_OPENGL_ES_1_CL - -#if defined(QT_OPENGL_ES) || defined(QT_OPENGL_ES_2) -QT_BEGIN_INCLUDE_NAMESPACE - -#if defined(QT_OPENGL_ES_2) -# include <GLES2/gl2.h> -#endif - -#if defined(QT_GLES_EGL) -# include <GLES/egl.h> -#else -# include <EGL/egl.h> -#endif - -QT_END_INCLUDE_NAMESPACE +#ifndef QT_NO_EGL +#include <QtGui/private/qegl_p.h> #endif QT_BEGIN_NAMESPACE @@ -124,7 +96,7 @@ class QMacWindowChangeEvent; class QWSGLWindowSurface; #endif -#if defined(QT_OPENGL_ES) +#ifndef QT_NO_EGL class QEglContext; #endif @@ -138,11 +110,15 @@ public: QGLFormatPrivate() : ref(1) { - opts = QGL::DoubleBuffer | QGL::DepthBuffer | QGL::Rgba | QGL::DirectRendering | QGL::StencilBuffer; + opts = QGL::DoubleBuffer | QGL::DepthBuffer | QGL::Rgba | QGL::DirectRendering + | QGL::StencilBuffer | QGL::DeprecatedFunctions; pln = 0; depthSize = accumSize = stencilSize = redSize = greenSize = blueSize = alphaSize = -1; numSamples = -1; swapInterval = -1; + majorVersion = 1; + minorVersion = 0; + profile = QGLFormat::NoProfile; } QGLFormatPrivate(const QGLFormatPrivate *other) : ref(1), @@ -156,7 +132,10 @@ public: blueSize(other->blueSize), alphaSize(other->alphaSize), numSamples(other->numSamples), - swapInterval(other->swapInterval) + swapInterval(other->swapInterval), + majorVersion(other->majorVersion), + minorVersion(other->minorVersion), + profile(other->profile) { } QAtomicInt ref; @@ -171,6 +150,9 @@ public: int alphaSize; int numSamples; int swapInterval; + int majorVersion; + int minorVersion; + QGLFormat::OpenGLContextProfile profile; }; class QGLWidgetPrivate : public QWidgetPrivate @@ -182,7 +164,7 @@ public: #ifdef Q_WS_QWS , wsurf(0) #endif -#if defined(Q_WS_X11) && defined(QT_OPENGL_ES) +#if defined(Q_WS_X11) && !defined(QT_NO_EGL) , eglSurfaceWindowId(0) #endif { @@ -195,6 +177,10 @@ public: void initContext(QGLContext *context, const QGLWidget* shareWidget); bool renderCxPm(QPixmap *pixmap); void cleanupColormaps(); + void aboutToDestroy() { + if (glcx) + glcx->reset(); + } QGLContext *glcx; QGLWidgetGLPaintDevice glDevice; @@ -212,8 +198,8 @@ public: QGLContext *olcx; #elif defined(Q_WS_X11) QGLOverlayWidget *olw; -#if defined(QT_OPENGL_ES) - void recreateEglSurface(bool force); +#ifndef QT_NO_EGL + void recreateEglSurface(); WId eglSurfaceWindowId; #endif #elif defined(Q_WS_MAC) @@ -248,7 +234,7 @@ public: static void addShare(const QGLContext *context, const QGLContext *share); static void removeShare(const QGLContext *context); private: - QGLContextGroup(const QGLContext *context) : m_context(context), m_guards(0), m_refs(1) { } + QGLContextGroup(const QGLContext *context); QGLExtensionFuncs m_extensionFuncs; const QGLContext *m_context; // context group's representative @@ -296,8 +282,6 @@ public: Q_DECLARE_FLAGS(Extensions, Extension) static Extensions glExtensions(); - -private: static Extensions currentContextExtensions(); }; @@ -350,6 +334,11 @@ public: void setVertexAttribArrayEnabled(int arrayIndex, bool enabled = true); void syncGlState(); // Makes sure the GL context's state is what we think it is + void swapRegion(const QRegion *region); + +#if defined(Q_WS_WIN) + void updateFormatVersion(); +#endif #if defined(Q_WS_WIN) HGLRC rc; @@ -360,10 +349,12 @@ public: HBITMAP hbitmap; HDC hbitmap_hdc; #endif -#if defined(QT_OPENGL_ES) +#ifndef QT_NO_EGL + uint ownsEglContext : 1; QEglContext *eglContext; EGLSurface eglSurface; void destroyEglSurfaceForDevice(); + EGLSurface eglSurfaceForDevice() const; #elif defined(Q_WS_X11) || defined(Q_WS_MAC) void* cx; #endif @@ -375,7 +366,7 @@ public: quint32 gpm; int screen; QHash<QPixmapData*, QPixmap> boundPixmaps; - QGLTexture *bindTextureFromNativePixmap(QPixmapData*, const qint64 key, + QGLTexture *bindTextureFromNativePixmap(QPixmap*, const qint64 key, QGLContext::BindOptions options); static void destroyGlSurfaceForPixmap(QPixmapData*); static void unbindPixmapFromTexture(QPixmapData*); @@ -396,6 +387,12 @@ public: uint internal_context : 1; uint version_flags_cached : 1; uint extension_flags_cached : 1; + + // workarounds for driver/hw bugs on different platforms + uint workaround_needsFullClearOnEveryFrame : 1; + uint workaround_brokenFBOReadBack : 1; + uint workaroundsCached : 1; + QPaintDevice *paintDevice; QColor transpColor; QGLContext *q_ptr; @@ -419,7 +416,7 @@ public: #if defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_WS_QWS) static QGLExtensionFuncs qt_extensionFuncs; - static inline QGLExtensionFuncs& extensionFuncs(const QGLContext *) { return qt_extensionFuncs; } + static Q_OPENGL_EXPORT QGLExtensionFuncs& extensionFuncs(const QGLContext *); #endif static void setCurrentContext(QGLContext *context); @@ -530,30 +527,69 @@ public: QSize bindCompressedTexturePVR(const char *buf, int len); }; +struct QGLTextureCacheKey { + qint64 key; + QGLContextGroup *group; +}; + +inline bool operator==(const QGLTextureCacheKey &a, const QGLTextureCacheKey &b) +{ + return a.key == b.key && a.group == b.group; +} + +inline uint qHash(const QGLTextureCacheKey &key) +{ + return qHash(key.key) ^ qHash(key.group); +} + + class Q_AUTOTEST_EXPORT QGLTextureCache { public: QGLTextureCache(); ~QGLTextureCache(); void insert(QGLContext *ctx, qint64 key, QGLTexture *texture, int cost); - void remove(quint64 key) { m_cache.remove(key); } + void remove(qint64 key); + inline int size(); + inline void setMaxCost(int newMax); + inline int maxCost(); + inline QGLTexture* getTexture(QGLContext *ctx, qint64 key); + bool remove(QGLContext *ctx, GLuint textureId); void removeContextTextures(QGLContext *ctx); - int size() { return m_cache.size(); } - void setMaxCost(int newMax) { m_cache.setMaxCost(newMax); } - int maxCost() {return m_cache.maxCost(); } - QGLTexture* getTexture(quint64 key) { return m_cache.object(key); } - static QGLTextureCache *instance(); - static void deleteIfEmpty(); static void cleanupTexturesForCacheKey(qint64 cacheKey); static void cleanupTexturesForPixampData(QPixmapData* pixmap); static void cleanupBeforePixmapDestruction(QPixmapData* pixmap); private: - QCache<qint64, QGLTexture> m_cache; + QCache<QGLTextureCacheKey, QGLTexture> m_cache; + QReadWriteLock m_lock; }; +int QGLTextureCache::size() { + QReadLocker locker(&m_lock); + return m_cache.size(); +} + +void QGLTextureCache::setMaxCost(int newMax) +{ + QWriteLocker locker(&m_lock); + m_cache.setMaxCost(newMax); +} + +int QGLTextureCache::maxCost() +{ + QReadLocker locker(&m_lock); + return m_cache.maxCost(); +} + +QGLTexture* QGLTextureCache::getTexture(QGLContext *ctx, qint64 key) +{ + QReadLocker locker(&m_lock); + const QGLTextureCacheKey cacheKey = {key, QGLContextPrivate::contextGroup(ctx)}; + return m_cache.object(cacheKey); +} extern Q_OPENGL_EXPORT QPaintEngine* qt_qgl_paint_engine(); diff --git a/src/opengl/qgl_qws.cpp b/src/opengl/qgl_qws.cpp index fd17a27..38c3774 100644 --- a/src/opengl/qgl_qws.cpp +++ b/src/opengl/qgl_qws.cpp @@ -119,21 +119,6 @@ bool QGLFormat::hasOpenGLOverlays() return false; } -void qt_egl_add_platform_config(QEglProperties& props, QPaintDevice *device) -{ - // Find the QGLScreen for this paint device. - QGLScreen *glScreen = glScreenForDevice(device); - if (!glScreen) { - qWarning("QGLContext::chooseContext(): The screen is not a QGLScreen"); - return; - } - int devType = device->devType(); - if (devType == QInternal::Image) - props.setPixelFormat(static_cast<QImage *>(device)->format()); - else - props.setPixelFormat(glScreen->pixelFormat()); -} - static EGLSurface qt_egl_create_surface (QEglContext *context, QPaintDevice *device, const QEglProperties *properties = 0) @@ -197,12 +182,14 @@ bool QGLContext::chooseContext(const QGLContext* shareContext) // Get the display and initialize it. d->eglContext = new QEglContext(); + d->ownsEglContext = true; d->eglContext->setApi(QEgl::OpenGL); // Construct the configuration we need for this surface. QEglProperties configProps; - qt_egl_add_platform_config(configProps, device()); - qt_egl_set_format(configProps, devType, d->glFormat); + qt_eglproperties_set_glformat(configProps, d->glFormat); + configProps.setDeviceType(devType); + configProps.setPaintDeviceFormat(device()); configProps.setRenderableType(QEgl::OpenGL); // Search for a matching configuration, reducing the complexity @@ -214,7 +201,7 @@ bool QGLContext::chooseContext(const QGLContext* shareContext) } // Inform the higher layers about the actual format properties. - qt_egl_update_format(*(d->eglContext), d->glFormat); + qt_glformat_from_eglconfig(d->glFormat, d->eglContext->config()); // Create a new context for the configuration. if (!d->eglContext->createContext diff --git a/src/opengl/qgl_win.cpp b/src/opengl/qgl_win.cpp index ed4814f..5ab944a 100644 --- a/src/opengl/qgl_win.cpp +++ b/src/opengl/qgl_win.cpp @@ -122,6 +122,30 @@ typedef bool (APIENTRY *PFNWGLCHOOSEPIXELFORMATARB)(HDC hdc, #define WGL_TYPE_COLORINDEX_ARB 0x202C #endif +#ifndef WGL_ARB_create_context +#define WGL_CONTEXT_MAJOR_VERSION_ARB 0x2091 +#define WGL_CONTEXT_MINOR_VERSION_ARB 0x2092 +#define WGL_CONTEXT_LAYER_PLANE_ARB 0x2093 +#define WGL_CONTEXT_FLAGS_ARB 0x2094 +#define WGL_CONTEXT_PROFILE_MASK_ARB 0x9126 +#define WGL_CONTEXT_DEBUG_BIT_ARB 0x0001 +#define WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x0002 +#define WGL_CONTEXT_CORE_PROFILE_BIT_ARB 0x0001 +#define WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB 0x0002 +// Error codes returned by GetLastError(). +#define ERROR_INVALID_VERSION_ARB 0x2095 +#define ERROR_INVALID_PROFILE_ARB 0x2096 +#endif + +#ifndef GL_VERSION_3_2 +#define GL_CONTEXT_PROFILE_MASK 0x9126 +#define GL_MAJOR_VERSION 0x821B +#define GL_MINOR_VERSION 0x821C +#define GL_NUM_EXTENSIONS 0x821D +#define GL_CONTEXT_FLAGS 0x821E +#define GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT 0x0001 +#endif + QT_BEGIN_NAMESPACE class QGLCmapPrivate @@ -682,8 +706,118 @@ QGLTemporaryContext::~QGLTemporaryContext() wglMakeCurrent(d->old_dc, d->old_context); } +static bool qgl_create_context(HDC hdc, QGLContextPrivate *d, QGLContextPrivate *shareContext) +{ + d->rc = 0; + + typedef HGLRC (APIENTRYP PFNWGLCREATECONTEXTATTRIBSARB)(HDC, HGLRC, const int *); + PFNWGLCREATECONTEXTATTRIBSARB wglCreateContextAttribsARB = + (PFNWGLCREATECONTEXTATTRIBSARB) wglGetProcAddress("wglCreateContextAttribsARB"); + if (wglCreateContextAttribsARB) { + int attributes[11]; + int attribIndex = 0; + const int major = d->reqFormat.majorVersion(); + const int minor = d->reqFormat.minorVersion(); + attributes[attribIndex++] = WGL_CONTEXT_MAJOR_VERSION_ARB; + attributes[attribIndex++] = major; + attributes[attribIndex++] = WGL_CONTEXT_MINOR_VERSION_ARB; + attributes[attribIndex++] = minor; + + if (major >= 3 && !d->reqFormat.testOption(QGL::DeprecatedFunctions)) { + attributes[attribIndex++] = WGL_CONTEXT_FLAGS_ARB; + attributes[attribIndex++] = WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB; + } + + if ((major == 3 && minor >= 2) || major > 3) { + switch (d->reqFormat.profile()) { + case QGLFormat::NoProfile: + break; + case QGLFormat::CoreProfile: + attributes[attribIndex++] = WGL_CONTEXT_PROFILE_MASK_ARB; + attributes[attribIndex++] = WGL_CONTEXT_CORE_PROFILE_BIT_ARB; + break; + case QGLFormat::CompatibilityProfile: + attributes[attribIndex++] = WGL_CONTEXT_PROFILE_MASK_ARB; + attributes[attribIndex++] = WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB; + break; + default: + qWarning("QGLContext::chooseContext(): Context profile not supported."); + return false; + } + } + + if (d->reqFormat.plane() != 0) { + attributes[attribIndex++] = WGL_CONTEXT_LAYER_PLANE_ARB; + attributes[attribIndex++] = d->reqFormat.plane(); + } + + attributes[attribIndex++] = 0; // Terminate list. + d->rc = wglCreateContextAttribsARB(hdc, shareContext && shareContext->valid + ? shareContext->rc : 0, attributes); + if (d->rc) { + if (shareContext) + shareContext->sharing = d->sharing = true; + return true; + } + } + + d->rc = wglCreateLayerContext(hdc, d->reqFormat.plane()); + if (d->rc && shareContext && shareContext->valid) + shareContext->sharing = d->sharing = wglShareLists(shareContext->rc, d->rc); + return d->rc != 0; +} + +void QGLContextPrivate::updateFormatVersion() +{ + const GLubyte *s = glGetString(GL_VERSION); + + if (!(s && s[0] >= '0' && s[0] <= '9' && s[1] == '.' && s[2] >= '0' && s[2] <= '9')) { + if (!s) + qWarning("QGLContext::chooseContext(): OpenGL version string is null."); + else + qWarning("QGLContext::chooseContext(): Unexpected OpenGL version string format."); + glFormat.setVersion(0, 0); + glFormat.setProfile(QGLFormat::NoProfile); + glFormat.setOption(QGL::DeprecatedFunctions); + return; + } + + int major = s[0] - '0'; + int minor = s[2] - '0'; + glFormat.setVersion(major, minor); + + if (major < 3) { + glFormat.setProfile(QGLFormat::NoProfile); + glFormat.setOption(QGL::DeprecatedFunctions); + } else { + GLint value = 0; + if (major > 3 || minor >= 2) + glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &value); + + switch (value) { + case WGL_CONTEXT_CORE_PROFILE_BIT_ARB: + glFormat.setProfile(QGLFormat::CoreProfile); + break; + case WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB: + glFormat.setProfile(QGLFormat::CompatibilityProfile); + break; + default: + glFormat.setProfile(QGLFormat::NoProfile); + break; + } + + glGetIntegerv(GL_CONTEXT_FLAGS, &value); + if (value & GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT) + glFormat.setOption(QGL::NoDeprecatedFunctions); + else + glFormat.setOption(QGL::DeprecatedFunctions); + } +} + bool QGLContext::chooseContext(const QGLContext* shareContext) { + QGLContextPrivate *share = shareContext ? const_cast<QGLContext *>(shareContext)->d_func() : 0; + Q_D(QGLContext); // workaround for matrox driver: // make a cheap call to opengl to force loading of DLL @@ -741,8 +875,7 @@ bool QGLContext::chooseContext(const QGLContext* shareContext) goto end; } - d->rc = wglCreateLayerContext(myDc, d->glFormat.plane()); - if (!d->rc) { + if (!qgl_create_context(myDc, d, share)) { qwglError("QGLContext::chooseContext()", "CreateLayerContext"); result = false; goto end; @@ -792,16 +925,7 @@ bool QGLContext::chooseContext(const QGLContext* shareContext) d->cmap = new QGLCmap(1 << lpfd.cColorBits); d->cmap->setEntry(lpfd.crTransparent, qRgb(1, 2, 3));//, QGLCmap::Reserved); } - - if (shareContext && shareContext->isValid()) { - QGLContext *share = const_cast<QGLContext *>(shareContext); - d->sharing = (wglShareLists(shareContext->d_func()->rc, d->rc) != 0); - share->d_func()->sharing = d->sharing; - } - - goto end; - } - { + } else { PIXELFORMATDESCRIPTOR pfd; PIXELFORMATDESCRIPTOR realPfd; d->pixelFormatId = choosePixelFormat(&pfd, myDc); @@ -840,17 +964,12 @@ bool QGLContext::chooseContext(const QGLContext* shareContext) goto end; } - if (!(d->rc = wglCreateLayerContext(myDc, 0))) { + if (!qgl_create_context(myDc, d, share)) { qwglError("QGLContext::chooseContext()", "wglCreateContext"); result = false; goto end; } - if (shareContext && shareContext->isValid()) { - d->sharing = (wglShareLists(shareContext->d_func()->rc, d->rc) != 0); - const_cast<QGLContext *>(shareContext)->d_func()->sharing = d->sharing; - } - if(!deviceIsPixmap()) { QRgb* pal = qgl_create_rgb_palette(&realPfd); if (pal) { @@ -865,6 +984,9 @@ bool QGLContext::chooseContext(const QGLContext* shareContext) end: // vblanking wglMakeCurrent(myDc, d->rc); + if (d->rc) + d->updateFormatVersion(); + typedef BOOL (APIENTRYP PFNWGLSWAPINTERVALEXT) (int interval); typedef int (APIENTRYP PFNWGLGETSWAPINTERVALEXT) (void); PFNWGLSWAPINTERVALEXT wglSwapIntervalEXT = (PFNWGLSWAPINTERVALEXT) wglGetProcAddress("wglSwapIntervalEXT"); @@ -1158,8 +1280,9 @@ void QGLContext::reset() void QGLContext::makeCurrent() { Q_D(QGLContext); - if (d->rc == wglGetCurrentContext() || !d->valid) // already current + if (d->rc == wglGetCurrentContext() || !d->valid) // already current return; + if (d->win) { d->dc = GetDC(d->win); if (!d->dc) { diff --git a/src/opengl/qgl_wince.cpp b/src/opengl/qgl_wince.cpp index f81115c..054a8d1 100644 --- a/src/opengl/qgl_wince.cpp +++ b/src/opengl/qgl_wince.cpp @@ -54,9 +54,9 @@ #include <windows.h> -#include <private/qegl_p.h> +#include <private/qeglproperties_p.h> +#include <private/qeglcontext_p.h> #include <private/qgl_egl_p.h> -#include <private/qgl_cl_p.h> QT_BEGIN_NAMESPACE @@ -121,16 +121,6 @@ QGLTemporaryContext::~QGLTemporaryContext() QGLFormat Win32/WGL-specific code *****************************************************************************/ -void qt_egl_add_platform_config(QEglProperties& props, QPaintDevice *device) -{ - int devType = device->devType(); - if (devType == QInternal::Image) - props.setPixelFormat(static_cast<QImage *>(device)->format()); - else - props.setPixelFormat(QImage::Format_RGB16); -} - - static bool opengl32dll = false; bool QGLFormat::hasOpenGLOverlays() @@ -154,12 +144,14 @@ bool QGLContext::chooseContext(const QGLContext* shareContext) // Get the display and initialize it. d->eglContext = new QEglContext(); + d->ownsEglContext = true; d->eglContext->setApi(QEgl::OpenGL); // Construct the configuration we need for this surface. QEglProperties configProps; - qt_egl_add_platform_config(configProps, device()); - qt_egl_set_format(configProps, devType, d->glFormat); + qt_eglproperties_set_glformat(configProps, d->glFormat); + configProps.setDeviceType(devType); + configProps.setPaintDeviceFormat(device()); configProps.setRenderableType(QEgl::OpenGL); // Search for a matching configuration, reducing the complexity @@ -171,7 +163,7 @@ bool QGLContext::chooseContext(const QGLContext* shareContext) } // Inform the higher layers about the actual format properties. - qt_egl_update_format(*(d->eglContext), d->glFormat); + qt_glformat_from_eglconfig(d->glFormat, d->eglContext->config()); // Create a new context for the configuration. if (!d->eglContext->createContext diff --git a/src/opengl/qgl_x11.cpp b/src/opengl/qgl_x11.cpp index 326785e..bfb232d 100644 --- a/src/opengl/qgl_x11.cpp +++ b/src/opengl/qgl_x11.cpp @@ -115,6 +115,20 @@ extern const QX11Info *qt_x11Info(const QPaintDevice *pd); #define GLX_FRONT_LEFT_EXT 0x20DE #endif +#ifndef GLX_ARB_create_context +#define GLX_CONTEXT_DEBUG_BIT_ARB 0x00000001 +#define GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x00000002 +#define GLX_CONTEXT_MAJOR_VERSION_ARB 0x2091 +#define GLX_CONTEXT_MINOR_VERSION_ARB 0x2092 +#define GLX_CONTEXT_FLAGS_ARB 0x2094 +#endif + +#ifndef GLX_ARB_create_context_profile +#define GLX_CONTEXT_CORE_PROFILE_BIT_ARB 0x00000001 +#define GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB 0x00000002 +#define GLX_CONTEXT_PROFILE_MASK_ARB 0x9126 +#endif + /* The qt_gl_choose_cmap function is internal and used by QGLWidget::setContext() and GLX (not Windows). If the application can't find any sharable @@ -401,6 +415,148 @@ bool QGLFormat::hasOpenGLOverlays() return trans_colors.size() > 0; } +static bool buildSpec(int* spec, const QGLFormat& f, QPaintDevice* paintDevice, + int bufDepth, bool onlyFBConfig = false) +{ + int i = 0; + spec[i++] = GLX_LEVEL; + spec[i++] = f.plane(); + const QX11Info *xinfo = qt_x11Info(paintDevice); + bool useFBConfig = onlyFBConfig; + +#if defined(GLX_VERSION_1_3) && !defined(QT_NO_XRENDER) && !defined(Q_OS_HPUX) + /* + HPUX defines GLX_VERSION_1_3 but does not implement the corresponding functions. + Specifically glXChooseFBConfig and glXGetVisualFromFBConfig are not implemented. + */ + QWidget* widget = 0; + if (paintDevice->devType() == QInternal::Widget) + widget = static_cast<QWidget*>(paintDevice); + + // Only use glXChooseFBConfig for widgets if we're trying to get an ARGB visual + if (widget && widget->testAttribute(Qt::WA_TranslucentBackground) && X11->use_xrender) + useFBConfig = true; +#endif + +#if defined(GLX_VERSION_1_1) && defined(GLX_EXT_visual_info) + static bool useTranspExt = false; + static bool useTranspExtChecked = false; + if (f.plane() && !useTranspExtChecked && paintDevice) { + QGLExtensionMatcher extensions(glXQueryExtensionsString(xinfo->display(), xinfo->screen())); + useTranspExt = extensions.match("GLX_EXT_visual_info"); + //# (A bit simplistic; that could theoretically be a substring) + if (useTranspExt) { + QByteArray cstr(glXGetClientString(xinfo->display(), GLX_VENDOR)); + useTranspExt = !cstr.contains("Xi Graphics"); // bug workaround + if (useTranspExt) { + // bug workaround - some systems (eg. FireGL) refuses to return an overlay + // visual if the GLX_TRANSPARENT_TYPE_EXT attribute is specified, even if + // the implementation supports transparent overlays + int tmpSpec[] = { GLX_LEVEL, f.plane(), GLX_TRANSPARENT_TYPE_EXT, + f.rgba() ? GLX_TRANSPARENT_RGB_EXT : GLX_TRANSPARENT_INDEX_EXT, + XNone }; + XVisualInfo * vinf = glXChooseVisual(xinfo->display(), xinfo->screen(), tmpSpec); + if (!vinf) { + useTranspExt = false; + } + } + } + + useTranspExtChecked = true; + } + if (f.plane() && useTranspExt && !useFBConfig) { + // Required to avoid non-transparent overlay visual(!) on some systems + spec[i++] = GLX_TRANSPARENT_TYPE_EXT; + spec[i++] = f.rgba() ? GLX_TRANSPARENT_RGB_EXT : GLX_TRANSPARENT_INDEX_EXT; + } +#endif + +#if defined(GLX_VERSION_1_3) && !defined(Q_OS_HPUX) + // GLX_RENDER_TYPE is only in glx >=1.3 + if (useFBConfig) { + spec[i++] = GLX_RENDER_TYPE; + spec[i++] = f.rgba() ? GLX_RGBA_BIT : GLX_COLOR_INDEX_BIT; + } +#endif + + if (f.doubleBuffer()) + spec[i++] = GLX_DOUBLEBUFFER; + if (useFBConfig) + spec[i++] = True; + if (f.depth()) { + spec[i++] = GLX_DEPTH_SIZE; + spec[i++] = f.depthBufferSize() == -1 ? 1 : f.depthBufferSize(); + } + if (f.stereo()) { + spec[i++] = GLX_STEREO; + if (useFBConfig) + spec[i++] = True; + } + if (f.stencil()) { + spec[i++] = GLX_STENCIL_SIZE; + spec[i++] = f.stencilBufferSize() == -1 ? 1 : f.stencilBufferSize(); + } + if (f.rgba()) { + if (!useFBConfig) + spec[i++] = GLX_RGBA; + spec[i++] = GLX_RED_SIZE; + spec[i++] = f.redBufferSize() == -1 ? 1 : f.redBufferSize(); + spec[i++] = GLX_GREEN_SIZE; + spec[i++] = f.greenBufferSize() == -1 ? 1 : f.greenBufferSize(); + spec[i++] = GLX_BLUE_SIZE; + spec[i++] = f.blueBufferSize() == -1 ? 1 : f.blueBufferSize(); + if (f.alpha()) { + spec[i++] = GLX_ALPHA_SIZE; + spec[i++] = f.alphaBufferSize() == -1 ? 1 : f.alphaBufferSize(); + } + if (f.accum()) { + spec[i++] = GLX_ACCUM_RED_SIZE; + spec[i++] = f.accumBufferSize() == -1 ? 1 : f.accumBufferSize(); + spec[i++] = GLX_ACCUM_GREEN_SIZE; + spec[i++] = f.accumBufferSize() == -1 ? 1 : f.accumBufferSize(); + spec[i++] = GLX_ACCUM_BLUE_SIZE; + spec[i++] = f.accumBufferSize() == -1 ? 1 : f.accumBufferSize(); + if (f.alpha()) { + spec[i++] = GLX_ACCUM_ALPHA_SIZE; + spec[i++] = f.accumBufferSize() == -1 ? 1 : f.accumBufferSize(); + } + } + } else { + spec[i++] = GLX_BUFFER_SIZE; + spec[i++] = bufDepth; + } + + if (f.sampleBuffers()) { + spec[i++] = GLX_SAMPLE_BUFFERS_ARB; + spec[i++] = 1; + spec[i++] = GLX_SAMPLES_ARB; + spec[i++] = f.samples() == -1 ? 4 : f.samples(); + } + +#if defined(GLX_VERSION_1_3) && !defined(Q_OS_HPUX) + if (useFBConfig) { + spec[i++] = GLX_DRAWABLE_TYPE; + switch(paintDevice->devType()) { + case QInternal::Pixmap: + spec[i++] = GLX_PIXMAP_BIT; + break; + case QInternal::Pbuffer: + spec[i++] = GLX_PBUFFER_BIT; + break; + default: + qWarning("QGLContext: Unknown paint device type %d", paintDevice->devType()); + // Fall-through & assume it's a window + case QInternal::Widget: + spec[i++] = GLX_WINDOW_BIT; + break; + }; + } +#endif + + spec[i] = XNone; + return useFBConfig; +} + /***************************************************************************** QGLContext UNIX/GLX-specific code *****************************************************************************/ @@ -493,21 +649,85 @@ bool QGLContext::chooseContext(const QGLContext* shareContext) shareContext = 0; } + const int major = d->reqFormat.majorVersion(); + const int minor = d->reqFormat.minorVersion(); + const int profile = d->reqFormat.profile() == QGLFormat::CompatibilityProfile + ? GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB + : GLX_CONTEXT_CORE_PROFILE_BIT_ARB; + d->cx = 0; - if (shareContext) { + +#if defined(GLX_VERSION_1_3) && !defined(Q_OS_HPUX) + /* + HPUX defines GLX_VERSION_1_3 but does not implement the corresponding functions. + Specifically glXChooseFBConfig and glXGetVisualFromFBConfig are not implemented. + */ + if ((major == 3 && minor >= 2) || major > 3) { + QGLTemporaryContext *tmpContext = 0; + if (!QGLContext::currentContext()) + tmpContext = new QGLTemporaryContext; + + int attributes[] = { GLX_CONTEXT_MAJOR_VERSION_ARB, major, + GLX_CONTEXT_MINOR_VERSION_ARB, minor, + GLX_CONTEXT_PROFILE_MASK_ARB, profile, + 0 }; + + typedef GLXContext ( * Q_PFNGLXCREATECONTEXTATTRIBSARBPROC) + (Display* dpy, GLXFBConfig config, GLXContext share_context, Bool direct, const int *attrib_list); + + + Q_PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribs = + (Q_PFNGLXCREATECONTEXTATTRIBSARBPROC) qglx_getProcAddress("glXCreateContextAttribsARB"); + + if (glXCreateContextAttribs) { + int spec[45]; + glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_BUFFER_SIZE, &res); + buildSpec(spec, format(), d->paintDevice, res, true); + + GLXFBConfig *configs; + int configCount = 0; + configs = glXChooseFBConfig(disp, xinfo->screen(), spec, &configCount); + + if (configs && configCount > 0) { + d->cx = glXCreateContextAttribs(disp, configs[0], + shareContext ? (GLXContext)shareContext->d_func()->cx : 0, direct, attributes); + if (!d->cx && shareContext) { + shareContext = 0; + d->cx = glXCreateContextAttribs(disp, configs[0], 0, direct, attributes); + } + d->screen = ((XVisualInfo*)d->vi)->screen; + } + XFree(configs); + } else { + qWarning("QGLContext::chooseContext(): OpenGL %d.%d is not supported", major, minor); + } + + if (tmpContext) + delete tmpContext; + } +#else + Q_UNUSED(major); + Q_UNUSED(minor); + Q_UNUSED(profile); +#endif + + if (!d->cx && shareContext) { d->cx = glXCreateContext(disp, (XVisualInfo *)d->vi, (GLXContext)shareContext->d_func()->cx, direct); d->screen = ((XVisualInfo*)d->vi)->screen; - if (d->cx) { - QGLContext *share = const_cast<QGLContext *>(shareContext); - d->sharing = true; - share->d_func()->sharing = true; - } } if (!d->cx) { d->cx = glXCreateContext(disp, (XVisualInfo *)d->vi, NULL, direct); d->screen = ((XVisualInfo*)d->vi)->screen; + shareContext = 0; + } + + if (shareContext && d->cx) { + QGLContext *share = const_cast<QGLContext *>(shareContext); + d->sharing = true; + share->d_func()->sharing = true; } + if (!d->cx) return false; d->glFormat.setDirectRendering(glXIsDirect(disp, (GLXContext)d->cx)); @@ -606,143 +826,8 @@ void *QGLContext::tryVisual(const QGLFormat& f, int bufDepth) { Q_D(QGLContext); int spec[45]; - int i = 0; - spec[i++] = GLX_LEVEL; - spec[i++] = f.plane(); const QX11Info *xinfo = qt_x11Info(d->paintDevice); - bool useFBConfig = false; - -#if defined(GLX_VERSION_1_3) && !defined(QT_NO_XRENDER) && !defined(Q_OS_HPUX) - /* - HPUX defines GLX_VERSION_1_3 but does not implement the corresponding functions. - Specifically glXChooseFBConfig and glXGetVisualFromFBConfig are not implemented. - */ - QWidget* widget = 0; - if (d->paintDevice->devType() == QInternal::Widget) - widget = static_cast<QWidget*>(d->paintDevice); - - // Only use glXChooseFBConfig for widgets if we're trying to get an ARGB visual - if (widget && widget->testAttribute(Qt::WA_TranslucentBackground) && X11->use_xrender) - useFBConfig = true; -#endif - -#if defined(GLX_VERSION_1_1) && defined(GLX_EXT_visual_info) - static bool useTranspExt = false; - static bool useTranspExtChecked = false; - if (f.plane() && !useTranspExtChecked && d->paintDevice) { - QGLExtensionMatcher extensions(glXQueryExtensionsString(xinfo->display(), xinfo->screen())); - useTranspExt = extensions.match("GLX_EXT_visual_info"); - //# (A bit simplistic; that could theoretically be a substring) - if (useTranspExt) { - QByteArray cstr(glXGetClientString(xinfo->display(), GLX_VENDOR)); - useTranspExt = !cstr.contains("Xi Graphics"); // bug workaround - if (useTranspExt) { - // bug workaround - some systems (eg. FireGL) refuses to return an overlay - // visual if the GLX_TRANSPARENT_TYPE_EXT attribute is specified, even if - // the implementation supports transparent overlays - int tmpSpec[] = { GLX_LEVEL, f.plane(), GLX_TRANSPARENT_TYPE_EXT, - f.rgba() ? GLX_TRANSPARENT_RGB_EXT : GLX_TRANSPARENT_INDEX_EXT, - XNone }; - XVisualInfo * vinf = glXChooseVisual(xinfo->display(), xinfo->screen(), tmpSpec); - if (!vinf) { - useTranspExt = false; - } - } - } - - useTranspExtChecked = true; - } - if (f.plane() && useTranspExt && !useFBConfig) { - // Required to avoid non-transparent overlay visual(!) on some systems - spec[i++] = GLX_TRANSPARENT_TYPE_EXT; - spec[i++] = f.rgba() ? GLX_TRANSPARENT_RGB_EXT : GLX_TRANSPARENT_INDEX_EXT; - } -#endif - -#if defined(GLX_VERSION_1_3) && !defined(Q_OS_HPUX) - // GLX_RENDER_TYPE is only in glx >=1.3 - if (useFBConfig) { - spec[i++] = GLX_RENDER_TYPE; - spec[i++] = f.rgba() ? GLX_RGBA_BIT : GLX_COLOR_INDEX_BIT; - } -#endif - - if (f.doubleBuffer()) - spec[i++] = GLX_DOUBLEBUFFER; - if (useFBConfig) - spec[i++] = True; - if (f.depth()) { - spec[i++] = GLX_DEPTH_SIZE; - spec[i++] = f.depthBufferSize() == -1 ? 1 : f.depthBufferSize(); - } - if (f.stereo()) { - spec[i++] = GLX_STEREO; - if (useFBConfig) - spec[i++] = True; - } - if (f.stencil()) { - spec[i++] = GLX_STENCIL_SIZE; - spec[i++] = f.stencilBufferSize() == -1 ? 1 : f.stencilBufferSize(); - } - if (f.rgba()) { - if (!useFBConfig) - spec[i++] = GLX_RGBA; - spec[i++] = GLX_RED_SIZE; - spec[i++] = f.redBufferSize() == -1 ? 1 : f.redBufferSize(); - spec[i++] = GLX_GREEN_SIZE; - spec[i++] = f.greenBufferSize() == -1 ? 1 : f.greenBufferSize(); - spec[i++] = GLX_BLUE_SIZE; - spec[i++] = f.blueBufferSize() == -1 ? 1 : f.blueBufferSize(); - if (f.alpha()) { - spec[i++] = GLX_ALPHA_SIZE; - spec[i++] = f.alphaBufferSize() == -1 ? 1 : f.alphaBufferSize(); - } - if (f.accum()) { - spec[i++] = GLX_ACCUM_RED_SIZE; - spec[i++] = f.accumBufferSize() == -1 ? 1 : f.accumBufferSize(); - spec[i++] = GLX_ACCUM_GREEN_SIZE; - spec[i++] = f.accumBufferSize() == -1 ? 1 : f.accumBufferSize(); - spec[i++] = GLX_ACCUM_BLUE_SIZE; - spec[i++] = f.accumBufferSize() == -1 ? 1 : f.accumBufferSize(); - if (f.alpha()) { - spec[i++] = GLX_ACCUM_ALPHA_SIZE; - spec[i++] = f.accumBufferSize() == -1 ? 1 : f.accumBufferSize(); - } - } - } else { - spec[i++] = GLX_BUFFER_SIZE; - spec[i++] = bufDepth; - } - - if (f.sampleBuffers()) { - spec[i++] = GLX_SAMPLE_BUFFERS_ARB; - spec[i++] = 1; - spec[i++] = GLX_SAMPLES_ARB; - spec[i++] = f.samples() == -1 ? 4 : f.samples(); - } - -#if defined(GLX_VERSION_1_3) && !defined(Q_OS_HPUX) - if (useFBConfig) { - spec[i++] = GLX_DRAWABLE_TYPE; - switch(d->paintDevice->devType()) { - case QInternal::Pixmap: - spec[i++] = GLX_PIXMAP_BIT; - break; - case QInternal::Pbuffer: - spec[i++] = GLX_PBUFFER_BIT; - break; - default: - qWarning("QGLContext: Unknown paint device type %d", d->paintDevice->devType()); - // Fall-through & assume it's a window - case QInternal::Widget: - spec[i++] = GLX_WINDOW_BIT; - break; - }; - } -#endif - - spec[i] = XNone; - + bool useFBConfig = buildSpec(spec, f, d->paintDevice, bufDepth, false); XVisualInfo* chosenVisualInfo = 0; @@ -755,7 +840,7 @@ void *QGLContext::tryVisual(const QGLFormat& f, int bufDepth) if (!configs) break; // fallback to trying glXChooseVisual - for (i = 0; i < configCount; ++i) { + for (int i = 0; i < configCount; ++i) { XVisualInfo* vi; vi = glXGetVisualFromFBConfig(xinfo->display(), configs[i]); if (!vi) @@ -843,7 +928,7 @@ void QGLContext::makeCurrent() } else if (d->paintDevice->devType() == QInternal::Pbuffer) { ok = glXMakeCurrent(xinfo->display(), (GLXPbuffer)d->pbuf, (GLXContext)d->cx); } else if (d->paintDevice->devType() == QInternal::Widget) { - ok = glXMakeCurrent(xinfo->display(), ((QWidget *)d->paintDevice)->winId(), (GLXContext)d->cx); + ok = glXMakeCurrent(xinfo->display(), ((QWidget *)d->paintDevice)->internalWinId(), (GLXContext)d->cx); } if (!ok) qWarning("QGLContext::makeCurrent(): Failed."); @@ -1671,20 +1756,28 @@ static bool qt_resolveTextureFromPixmap(QPaintDevice *paintDevice) #endif //defined(GLX_VERSION_1_3) && !defined(Q_OS_HPUX) -QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmapData *pmd, const qint64 key, +QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmap *pixmap, const qint64 key, QGLContext::BindOptions options) { #if !defined(GLX_VERSION_1_3) || defined(Q_OS_HPUX) return 0; #else + + // Check we have GLX 1.3, as it is needed for glXCreatePixmap & glXDestroyPixmap + int majorVersion = 0; + int minorVersion = 0; + glXQueryVersion(X11->display, &majorVersion, &minorVersion); + if (majorVersion < 1 || (majorVersion == 1 && minorVersion < 3)) + return 0; + Q_Q(QGLContext); - Q_ASSERT(pmd->classId() == QPixmapData::X11Class); + QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(pixmap->data_ptr().data()); + Q_ASSERT(pixmapData->classId() == QPixmapData::X11Class); if (!qt_resolveTextureFromPixmap(paintDevice)) return 0; - QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(pmd); const QX11Info &x11Info = pixmapData->xinfo; // Store the configs (Can be static because configs aren't dependent on current context) @@ -1753,7 +1846,7 @@ QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmapData *pmd, con if (!glxPixmap) return 0; - pixmapData->gl_surface = (Qt::HANDLE)glxPixmap; + pixmapData->gl_surface = (void*)glxPixmap; // Make sure the cleanup hook gets called so we can delete the glx pixmap QImagePixmapCleanupHooks::enableCleanupHooks(pixmapData); diff --git a/src/opengl/qgl_x11egl.cpp b/src/opengl/qgl_x11egl.cpp index 3d183ee..9d28de0 100644 --- a/src/opengl/qgl_x11egl.cpp +++ b/src/opengl/qgl_x11egl.cpp @@ -42,20 +42,17 @@ #include "qgl.h" #include <private/qt_x11_p.h> #include <private/qpixmap_x11_p.h> -#include <private/qimagepixmapcleanuphooks_p.h> #include <private/qgl_p.h> #include <private/qpaintengine_opengl_p.h> #include "qgl_egl_p.h" #include "qcolormap.h" #include <QDebug> +#include <QPixmap> QT_BEGIN_NAMESPACE -bool qt_egl_setup_x11_visual(XVisualInfo &vi, EGLDisplay display, EGLConfig config, - const QX11Info &x11Info, bool useArgbVisual); - /* QGLTemporaryContext implementation */ @@ -79,12 +76,7 @@ QGLTemporaryContext::QGLTemporaryContext(bool, QWidget *) d->surface = 0; int screen = 0; - d->display = eglGetDisplay(EGLNativeDisplayType(X11->display)); - - if (!eglInitialize(d->display, NULL, NULL)) { - qWarning("QGLTemporaryContext: Unable to initialize EGL display."); - return; - } + d->display = QEgl::display(); EGLConfig config; int numConfigs = 0; @@ -107,15 +99,7 @@ QGLTemporaryContext::QGLTemporaryContext(bool, QWidget *) int numVisuals; EGLint id = 0; - eglGetConfigAttrib(d->display, config, EGL_NATIVE_VISUAL_ID, &id); - if (id == 0) { - // EGL_NATIVE_VISUAL_ID is optional and might not be supported - // on some implementations - we'll have to do it the hard way - QX11Info xinfo; - qt_egl_setup_x11_visual(visualInfo, d->display, config, xinfo, false); - } else { - visualInfo.visualid = id; - } + visualInfo.visualid = QEgl::getCompatibleVisualId(config); vi = XGetVisualInfo(X11->display, VisualIDMask, &visualInfo, &numVisuals); if (!vi || numVisuals < 1) { qWarning("QGLTemporaryContext: Unable to get X11 visual info id."); @@ -170,12 +154,6 @@ bool QGLFormat::hasOpenGLOverlays() return false; } -void qt_egl_add_platform_config(QEglProperties& props, QPaintDevice *device) -{ - if (device->devType() == QInternal::Image) - props.setPixelFormat(static_cast<QImage *>(device)->format()); -} - // Chooses the EGL config and creates the EGL context bool QGLContext::chooseContext(const QGLContext* shareContext) { @@ -186,54 +164,54 @@ bool QGLContext::chooseContext(const QGLContext* shareContext) int devType = device()->devType(); - // Get the display and initialize it. + QX11PixmapData *x11PixmapData = 0; + if (devType == QInternal::Pixmap) { + QPixmapData *pmd = static_cast<QPixmap*>(device())->data_ptr().data(); + if (pmd->classId() == QPixmapData::X11Class) + x11PixmapData = static_cast<QX11PixmapData*>(pmd); + else { + // TODO: Replace the pixmap's data with a new QX11PixmapData + qWarning("WARNING: Creating a QGLContext on a QPixmap is only supported for X11 pixmap backend"); + return false; + } + } else if ((devType != QInternal::Widget) && (devType != QInternal::Pbuffer)) { + qWarning("WARNING: Creating a QGLContext not supported on device type %d", devType); + return false; + } + + // Only create the eglContext if we don't already have one: if (d->eglContext == 0) { d->eglContext = new QEglContext(); + d->ownsEglContext = true; d->eglContext->setApi(QEgl::OpenGL); + // If the device is a widget with WA_TranslucentBackground set, make sure the glFormat + // has the alpha channel option set: + if (devType == QInternal::Widget) { + QWidget* widget = static_cast<QWidget*>(device()); + if (widget->testAttribute(Qt::WA_TranslucentBackground)) + d->glFormat.setAlpha(true); + } + // Construct the configuration we need for this surface. QEglProperties configProps; - qt_egl_set_format(configProps, devType, d->glFormat); - qt_egl_add_platform_config(configProps, device()); + configProps.setDeviceType(devType); configProps.setRenderableType(QEgl::OpenGL); + qt_eglproperties_set_glformat(configProps, d->glFormat); -#if We_have_an_EGL_library_which_bothers_to_check_EGL_BUFFER_SIZE - if (device()->depth() == 16 && configProps.value(EGL_ALPHA_SIZE) <= 0) { - qDebug("Setting EGL_BUFFER_SIZE to 16"); - configProps.setValue(EGL_BUFFER_SIZE, 16); - configProps.setValue(EGL_ALPHA_SIZE, 0); - } + // Set buffer preserved for regular QWidgets, QGLWidgets are ok with either preserved or destroyed: + if ((devType == QInternal::Widget) && qobject_cast<QGLWidget*>(static_cast<QWidget*>(device())) == 0) + configProps.setValue(EGL_SWAP_BEHAVIOR, EGL_BUFFER_PRESERVED); if (!d->eglContext->chooseConfig(configProps, QEgl::BestPixelFormat)) { delete d->eglContext; d->eglContext = 0; return false; } -#else - QEgl::PixelFormatMatch matchType = QEgl::BestPixelFormat; - if ((device()->depth() == 16) && configProps.value(EGL_ALPHA_SIZE) == 0) { - configProps.setValue(EGL_RED_SIZE, 5); - configProps.setValue(EGL_GREEN_SIZE, 6); - configProps.setValue(EGL_BLUE_SIZE, 5); - configProps.setValue(EGL_ALPHA_SIZE, 0); - matchType = QEgl::ExactPixelFormat; - } - - // Search for a matching configuration, reducing the complexity - // each time until we get something that matches. - if (!d->eglContext->chooseConfig(configProps, matchType)) { - delete d->eglContext; - d->eglContext = 0; - return false; - } -#endif - -// qDebug("QGLContext::chooseContext() - using EGL config %d:", d->eglContext->config()); -// qDebug() << QEglProperties(d->eglContext->config()).toString(); // Create a new context for the configuration. - if (!d->eglContext->createContext - (shareContext ? shareContext->d_func()->eglContext : 0)) { + QEglContext* eglSharedContext = shareContext ? shareContext->d_func()->eglContext : 0; + if (!d->eglContext->createContext(eglSharedContext)) { delete d->eglContext; d->eglContext = 0; return false; @@ -241,15 +219,32 @@ bool QGLContext::chooseContext(const QGLContext* shareContext) d->sharing = d->eglContext->isSharing(); if (d->sharing && shareContext) const_cast<QGLContext *>(shareContext)->d_func()->sharing = true; + } -#if defined(EGL_VERSION_1_1) - if (d->glFormat.swapInterval() != -1 && devType == QInternal::Widget) - eglSwapInterval(d->eglContext->display(), d->glFormat.swapInterval()); -#endif + // Inform the higher layers about the actual format properties + qt_glformat_from_eglconfig(d->glFormat, d->eglContext->config()); + + // Do don't create the EGLSurface for everything. + // QWidget - yes, create the EGLSurface and store it in QGLContextPrivate::eglSurface + // QGLWidget - yes, create the EGLSurface and store it in QGLContextPrivate::eglSurface + // QPixmap - yes, create the EGLSurface but store it in QX11PixmapData::gl_surface + // QGLPixelBuffer - no, it creates the surface itself and stores it in QGLPixelBufferPrivate::pbuf + + if (devType == QInternal::Widget) { + if (d->eglSurface != EGL_NO_SURFACE) + eglDestroySurface(d->eglContext->display(), d->eglSurface); + d->eglSurface = QEgl::createSurface(device(), d->eglContext->config()); + XFlush(X11->display); + setWindowCreated(true); } - // Inform the higher layers about the actual format properties. - qt_egl_update_format(*(d->eglContext), d->glFormat); + if (x11PixmapData) { + // TODO: Actually check to see if the existing surface can be re-used + if (x11PixmapData->gl_surface) + eglDestroySurface(d->eglContext->display(), (EGLSurface)x11PixmapData->gl_surface); + + x11PixmapData->gl_surface = (void*)QEgl::createSurface(device(), d->eglContext->config()); + } return true; } @@ -281,142 +276,6 @@ void QGLWidget::updateOverlayGL() //handle overlay } -//#define QT_DEBUG_X11_VISUAL_SELECTION 1 - -bool qt_egl_setup_x11_visual(XVisualInfo &vi, EGLDisplay display, EGLConfig config, const QX11Info &x11Info, bool useArgbVisual) -{ - bool foundVisualIsArgb = useArgbVisual; - -#ifdef QT_DEBUG_X11_VISUAL_SELECTION - qDebug("qt_egl_setup_x11_visual() - useArgbVisual=%d", useArgbVisual); -#endif - - memset(&vi, 0, sizeof(XVisualInfo)); - - EGLint eglConfigColorSize; - eglGetConfigAttrib(display, config, EGL_BUFFER_SIZE, &eglConfigColorSize); - - // Check to see if EGL is suggesting an appropriate visual id: - EGLint nativeVisualId; - eglGetConfigAttrib(display, config, EGL_NATIVE_VISUAL_ID, &nativeVisualId); - vi.visualid = nativeVisualId; - - if (vi.visualid) { - // EGL has suggested a visual id, so get the rest of the visual info for that id: - XVisualInfo *chosenVisualInfo; - int matchingCount = 0; - chosenVisualInfo = XGetVisualInfo(x11Info.display(), VisualIDMask, &vi, &matchingCount); - if (chosenVisualInfo) { -#if !defined(QT_NO_XRENDER) - if (useArgbVisual) { - // Check to make sure the visual provided by EGL is ARGB - XRenderPictFormat *format; - format = XRenderFindVisualFormat(x11Info.display(), chosenVisualInfo->visual); - if (format->type == PictTypeDirect && format->direct.alphaMask) { -#ifdef QT_DEBUG_X11_VISUAL_SELECTION - qDebug("Using ARGB X Visual ID (%d) provided by EGL", (int)vi.visualid); -#endif - foundVisualIsArgb = true; - vi = *chosenVisualInfo; - } - else { - qWarning("Warning: EGL suggested using X visual ID %d for config %d, but this is not ARGB", - nativeVisualId, (int)config); - vi.visualid = 0; - } - } else -#endif - { - if (eglConfigColorSize == chosenVisualInfo->depth) { -#ifdef QT_DEBUG_X11_VISUAL_SELECTION - qDebug("Using opaque X Visual ID (%d) provided by EGL", (int)vi.visualid); -#endif - vi = *chosenVisualInfo; - } else - qWarning("Warning: EGL suggested using X visual ID %d (%d bpp) for config %d (%d bpp), but the depths do not match!", - nativeVisualId, chosenVisualInfo->depth, (int)config, eglConfigColorSize); - } - XFree(chosenVisualInfo); - } - else { - qWarning("Warning: EGL suggested using X visual ID %d for config %d, but this seems to be invalid!", - nativeVisualId, (int)config); - vi.visualid = 0; - } - } - - // If EGL does not know the visual ID, so try to select an appropriate one ourselves, first - // using XRender if we're supposed to have an alpha, then falling back to XGetVisualInfo - -#if !defined(QT_NO_XRENDER) - if (vi.visualid == 0 && useArgbVisual) { - // Try to use XRender to find an ARGB visual we can use - vi.screen = x11Info.screen(); - vi.depth = 32; //### We might at some point (soon) get ARGB4444 - vi.c_class = TrueColor; - XVisualInfo *matchingVisuals; - int matchingCount = 0; - matchingVisuals = XGetVisualInfo(x11Info.display(), - VisualScreenMask|VisualDepthMask|VisualClassMask, - &vi, &matchingCount); - - for (int i = 0; i < matchingCount; ++i) { - XRenderPictFormat *format; - format = XRenderFindVisualFormat(x11Info.display(), matchingVisuals[i].visual); - if (format->type == PictTypeDirect && format->direct.alphaMask) { - vi = matchingVisuals[i]; - foundVisualIsArgb = true; -#ifdef QT_DEBUG_X11_VISUAL_SELECTION - qDebug("Using X Visual ID (%d) for ARGB visual as provided by XRender", (int)vi.visualid); -#endif - break; - } - } - XFree(matchingVisuals); - } -#endif - - if (vi.visualid == 0) { - EGLint depth; - eglGetConfigAttrib(display, config, EGL_BUFFER_SIZE, &depth); - int err; - err = XMatchVisualInfo(x11Info.display(), x11Info.screen(), depth, TrueColor, &vi); - if (err == 0) { - qWarning("Warning: Can't find an X visual which matches the EGL config(%d)'s depth (%d)!", - (int)config, depth); - depth = x11Info.depth(); - err = XMatchVisualInfo(x11Info.display(), x11Info.screen(), depth, TrueColor, &vi); - if (err == 0) { - qWarning("Error: Couldn't get any matching X visual!"); - return false; - } else - qWarning(" - Falling back to X11 suggested depth (%d)", depth); - } -#ifdef QT_DEBUG_X11_VISUAL_SELECTION - else - qDebug("Using X Visual ID (%d) for EGL provided depth (%d)", (int)vi.visualid, depth); -#endif - - // Don't try to use ARGB now unless the visual is 32-bit - even then it might stil fail :-( - if (useArgbVisual) - foundVisualIsArgb = vi.depth == 32; //### We might at some point (soon) get ARGB4444 - } - -#ifdef QT_DEBUG_X11_VISUAL_SELECTION - qDebug("Visual Info:"); - qDebug(" bits_per_rgb=%d", vi.bits_per_rgb); - qDebug(" red_mask=0x%x", vi.red_mask); - qDebug(" green_mask=0x%x", vi.green_mask); - qDebug(" blue_mask=0x%x", vi.blue_mask); - qDebug(" colormap_size=%d", vi.colormap_size); - qDebug(" c_class=%d", vi.c_class); - qDebug(" depth=%d", vi.depth); - qDebug(" screen=%d", vi.screen); - qDebug(" visualid=%d", vi.visualid); -#endif - return foundVisualIsArgb; -} - void QGLWidget::setContext(QGLContext *context, const QGLContext* shareContext, bool deleteOldContext) { Q_D(QGLWidget); @@ -434,20 +293,6 @@ void QGLWidget::setContext(QGLContext *context, const QGLContext* shareContext, QGLContext* oldcx = d->glcx; d->glcx = context; - if (parentWidget()) { - // force creation of delay-created widgets - parentWidget()->winId(); - if (parentWidget()->x11Info().screen() != x11Info().screen()) - d_func()->xinfo = parentWidget()->d_func()->xinfo; - } - - // If the application has set WA_TranslucentBackground and not explicitly set - // the alpha buffer size to zero, modify the format so it have an alpha channel - QGLFormat& fmt = d->glcx->d_func()->glFormat; - const bool tryArgbVisual = testAttribute(Qt::WA_TranslucentBackground) || fmt.alpha(); - if (tryArgbVisual && fmt.alphaBufferSize() == -1) - fmt.setAlphaBufferSize(1); - bool createFailed = false; if (!d->glcx->isValid()) { // Create the QGLContext here, which in turn chooses the EGL config @@ -461,63 +306,8 @@ void QGLWidget::setContext(QGLContext *context, const QGLContext* shareContext, return; } - if (d->glcx->windowCreated() || d->glcx->deviceIsPixmap()) { - if (deleteOldContext) - delete oldcx; - return; - } - - bool visible = isVisible(); - if (visible) - hide(); - XVisualInfo vi; - QEglContext *eglContext = d->glcx->d_func()->eglContext; - bool usingArgbVisual = qt_egl_setup_x11_visual(vi, eglContext->display(), eglContext->config(), - x11Info(), tryArgbVisual); - - XSetWindowAttributes a; - - Window p = RootWindow(x11Info().display(), x11Info().screen()); - if (parentWidget()) - p = parentWidget()->winId(); - - QColormap colmap = QColormap::instance(vi.screen); - a.background_pixel = colmap.pixel(palette().color(backgroundRole())); - a.border_pixel = colmap.pixel(Qt::black); - - unsigned int valueMask = CWBackPixel|CWBorderPixel; - if (usingArgbVisual) { - a.colormap = XCreateColormap(x11Info().display(), p, vi.visual, AllocNone); - valueMask |= CWColormap; - } - - Window w = XCreateWindow(x11Info().display(), p, x(), y(), width(), height(), - 0, vi.depth, InputOutput, vi.visual, valueMask, &a); - - if (deleteOldContext) - delete oldcx; - oldcx = 0; - - create(w); // Create with the ID of the window we've just created - - - // Create the EGL surface to draw into. - QGLContextPrivate *ctxpriv = d->glcx->d_func(); - ctxpriv->eglSurface = ctxpriv->eglContext->createSurface(this); - if (ctxpriv->eglSurface == EGL_NO_SURFACE) { - delete ctxpriv->eglContext; - ctxpriv->eglContext = 0; - return; - } - - d->eglSurfaceWindowId = w; // Remember the window id we created the surface for - - if (visible) - show(); - - XFlush(X11->display); - d->glcx->setWindowCreated(true); + d->eglSurfaceWindowId = winId(); // Remember the window id we created the surface for } void QGLWidgetPrivate::init(QGLContext *context, const QGLWidget* shareWidget) @@ -526,7 +316,7 @@ void QGLWidgetPrivate::init(QGLContext *context, const QGLWidget* shareWidget) initContext(context, shareWidget); - if(q->isValid() && glcx->format().hasOverlay()) { + if (q->isValid() && glcx->format().hasOverlay()) { //no overlay qWarning("QtOpenGL ES doesn't currently support overlays"); } @@ -545,138 +335,29 @@ void QGLWidget::setColormap(const QGLColormap &) { } -// Re-creates the EGL surface if the window ID has changed or if force is true -void QGLWidgetPrivate::recreateEglSurface(bool force) +// Re-creates the EGL surface if the window ID has changed or if there isn't a surface +void QGLWidgetPrivate::recreateEglSurface() { Q_Q(QGLWidget); Window currentId = q->winId(); - if ( force || (currentId != eglSurfaceWindowId) ) { - // The window id has changed so we need to re-create the EGL surface - QEglContext *ctx = glcx->d_func()->eglContext; - EGLSurface surface = glcx->d_func()->eglSurface; - if (surface != EGL_NO_SURFACE) - ctx->destroySurface(surface); // Will force doneCurrent() if nec. - surface = ctx->createSurface(q); - if (surface == EGL_NO_SURFACE) - qWarning("Error creating EGL window surface: 0x%x", eglGetError()); - glcx->d_func()->eglSurface = surface; - - eglSurfaceWindowId = currentId; - } -} - -// Selects which configs should be used -EGLConfig Q_OPENGL_EXPORT qt_chooseEGLConfigForPixmap(bool hasAlpha, bool readOnly) -{ - // Cache the configs we select as they wont change: - static EGLConfig roPixmapRGBConfig = 0; - static EGLConfig roPixmapRGBAConfig = 0; - static EGLConfig rwPixmapRGBConfig = 0; - static EGLConfig rwPixmapRGBAConfig = 0; - - EGLConfig* targetConfig; - - if (hasAlpha) { - if (readOnly) - targetConfig = &roPixmapRGBAConfig; - else - targetConfig = &rwPixmapRGBAConfig; - } - else { - if (readOnly) - targetConfig = &roPixmapRGBConfig; - else - targetConfig = &rwPixmapRGBConfig; - } - - if (*targetConfig == 0) { - QEglProperties configAttribs; - configAttribs.setValue(EGL_SURFACE_TYPE, EGL_PIXMAP_BIT); - configAttribs.setRenderableType(QEgl::OpenGL); - if (hasAlpha) - configAttribs.setValue(EGL_BIND_TO_TEXTURE_RGBA, EGL_TRUE); - else - configAttribs.setValue(EGL_BIND_TO_TEXTURE_RGB, EGL_TRUE); - - // If this is going to be a render target, it needs to have a depth, stencil & sample buffer - if (!readOnly) { - configAttribs.setValue(EGL_DEPTH_SIZE, 1); - configAttribs.setValue(EGL_STENCIL_SIZE, 1); - configAttribs.setValue(EGL_SAMPLE_BUFFERS, 1); - } - - EGLint configCount = 0; - do { - eglChooseConfig(QEglContext::display(), configAttribs.properties(), targetConfig, 1, &configCount); - if (configCount > 0) { - // Got one - qDebug() << "Found an" << (hasAlpha ? "ARGB" : "RGB") << (readOnly ? "readonly" : "target" ) - << "config (" << int(*targetConfig) << ") to create a pixmap surface:"; - -// QEglProperties configProps(*targetConfig); -// qDebug() << configProps.toString(); - break; - } - qWarning("choosePixmapConfig() - No suitible config found, reducing requirements"); - } while (configAttribs.reduceConfiguration()); + // If the window ID has changed since the surface was created, we need to delete the + // old surface before re-creating a new one. Note: This should not be the case as the + // surface should be deleted before the old window id. + if (glcx->d_func()->eglSurface != EGL_NO_SURFACE && (currentId != eglSurfaceWindowId)) { + qWarning("EGL surface for deleted window %x was not destroyed", eglSurfaceWindowId); + glcx->d_func()->destroyEglSurfaceForDevice(); } - if (*targetConfig == 0) - qWarning("choosePixmapConfig() - Couldn't find a suitable config"); - - return *targetConfig; -} - -bool Q_OPENGL_EXPORT qt_createEGLSurfaceForPixmap(QPixmapData* pmd, bool readOnly) -{ - Q_ASSERT(pmd->classId() == QPixmapData::X11Class); - QX11PixmapData* pixmapData = static_cast<QX11PixmapData*>(pmd); - - bool hasAlpha = pixmapData->hasAlphaChannel(); - - EGLConfig pixmapConfig = qt_chooseEGLConfigForPixmap(hasAlpha, readOnly); - - QEglProperties pixmapAttribs; - - // If the pixmap can't be bound to a texture, it's pretty useless - pixmapAttribs.setValue(EGL_TEXTURE_TARGET, EGL_TEXTURE_2D); - if (hasAlpha) - pixmapAttribs.setValue(EGL_TEXTURE_FORMAT, EGL_TEXTURE_RGBA); - else - pixmapAttribs.setValue(EGL_TEXTURE_FORMAT, EGL_TEXTURE_RGB); - - EGLSurface pixmapSurface; - pixmapSurface = eglCreatePixmapSurface(QEglContext::display(), - pixmapConfig, - (EGLNativePixmapType) pixmapData->handle(), - pixmapAttribs.properties()); -// qDebug("qt_createEGLSurfaceForPixmap() created surface 0x%x for pixmap 0x%x", -// pixmapSurface, pixmapData->handle()); - if (pixmapSurface == EGL_NO_SURFACE) { - qWarning() << "Failed to create a pixmap surface using config" << (int)pixmapConfig - << ":" << QEglContext::errorString(eglGetError()); - return false; - } - - static bool doneOnce = false; - if (!doneOnce) { - // Make sure QGLTextureCache is instanciated so it can install cleanup hooks - // which cleanup the EGL surface. - QGLTextureCache::instance(); - doneOnce = true; + if (glcx->d_func()->eglSurface == EGL_NO_SURFACE) { + glcx->d_func()->eglSurface = glcx->d_func()->eglContext->createSurface(q); + eglSurfaceWindowId = currentId; } - - Q_ASSERT(sizeof(Qt::HANDLE) >= sizeof(EGLSurface)); // Just to make totally sure! - pixmapData->gl_surface = (Qt::HANDLE)pixmapSurface; - QImagePixmapCleanupHooks::enableCleanupHooks(pixmapData); // Make sure the cleanup hook gets called - - return true; } -QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmapData* pd, const qint64 key, +QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmap *pixmap, const qint64 key, QGLContext::BindOptions options) { Q_Q(QGLContext); @@ -685,82 +366,156 @@ QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmapData* pd, cons if (!(options & QGLContext::CanFlipNativePixmapBindOption)) return 0; - Q_ASSERT(pd->classId() == QPixmapData::X11Class); static bool checkedForTFP = false; static bool haveTFP = false; + static bool checkedForEglImageTFP = false; + static bool haveEglImageTFP = false; + + + if (!checkedForEglImageTFP) { + checkedForEglImageTFP = true; + + // We need to be able to create an EGLImage from a native pixmap, which was split + // into a seperate EGL extension, EGL_KHR_image_pixmap. It is possible to have + // eglCreateImageKHR & eglDestroyImageKHR without support for pixmaps, so we must + // check we have the EGLImage from pixmap functionality. + if (QEgl::hasExtension("EGL_KHR_image") || QEgl::hasExtension("EGL_KHR_image_pixmap")) { + + // Being able to create an EGLImage from a native pixmap is also pretty useless + // without the ability to bind that EGLImage as a texture, which is provided by + // the GL_OES_EGL_image extension, which we try to resolve here: + haveEglImageTFP = qt_resolve_eglimage_gl_extensions(q); + + if (haveEglImageTFP) + qDebug("Found EGL_KHR_image_pixmap & GL_OES_EGL_image extensions (preferred method)!"); + } + } if (!checkedForTFP) { // Check for texture_from_pixmap egl extension checkedForTFP = true; - if (eglContext->hasExtension("EGL_NOKIA_texture_from_pixmap") || - eglContext->hasExtension("EGL_EXT_texture_from_pixmap")) + if (QEgl::hasExtension("EGL_NOKIA_texture_from_pixmap") || + QEgl::hasExtension("EGL_EXT_texture_from_pixmap")) { qDebug("Found texture_from_pixmap EGL extension!"); haveTFP = true; } } - if (!haveTFP) + if (!haveTFP && !haveEglImageTFP) return 0; - QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(pd); + QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(pixmap->data_ptr().data()); + Q_ASSERT(pixmapData->classId() == QPixmapData::X11Class); bool hasAlpha = pixmapData->hasAlphaChannel(); + bool pixmapHasValidSurface = false; + bool textureIsBound = false; + GLuint textureId; + glGenTextures(1, &textureId); + glBindTexture(GL_TEXTURE_2D, textureId); - // Check to see if the surface is still valid - if (pixmapData->gl_surface && - hasAlpha != (pixmapData->flags & QX11PixmapData::GlSurfaceCreatedWithAlpha)) + if (haveTFP && pixmapData->gl_surface && + hasAlpha == (pixmapData->flags & QX11PixmapData::GlSurfaceCreatedWithAlpha)) { - // Surface is invalid! - destroyGlSurfaceForPixmap(pixmapData); + pixmapHasValidSurface = true; } - if (pixmapData->gl_surface == 0) { - bool success = qt_createEGLSurfaceForPixmap(pixmapData, true); - if (!success) { - haveTFP = false; - return 0; + // If we already have a valid EGL surface for the pixmap, we should use it + if (pixmapHasValidSurface) { + EGLBoolean success; + success = eglBindTexImage(QEgl::display(), (EGLSurface)pixmapData->gl_surface, EGL_BACK_BUFFER); + if (success == EGL_FALSE) { + qWarning() << "eglBindTexImage() failed:" << QEgl::errorString(); + eglDestroySurface(QEgl::display(), (EGLSurface)pixmapData->gl_surface); + pixmapData->gl_surface = (void*)EGL_NO_SURFACE; + } else + textureIsBound = true; + } + + // If the pixmap doesn't already have a valid surface, try binding it via EGLImage + // first, as going through EGLImage should be faster and better supported: + if (!textureIsBound && haveEglImageTFP) { + EGLImageKHR eglImage; + + EGLint attribs[] = { + EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, + EGL_NONE + }; + eglImage = QEgl::eglCreateImageKHR(QEgl::display(), EGL_NO_CONTEXT, EGL_NATIVE_PIXMAP_KHR, + (EGLClientBuffer)QEgl::nativePixmap(pixmap), attribs); + + QGLContext* ctx = q; + glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, eglImage); + + GLint err = glGetError(); + if (err == GL_NO_ERROR) + textureIsBound = true; + + // Once the egl image is bound, the texture becomes a new sibling image and we can safely + // destroy the EGLImage we created for the pixmap: + if (eglImage != EGL_NO_IMAGE_KHR) + QEgl::eglDestroyImageKHR(QEgl::display(), eglImage); + } + + if (!textureIsBound && haveTFP) { + // Check to see if the surface is still valid + if (pixmapData->gl_surface && + hasAlpha != (pixmapData->flags & QX11PixmapData::GlSurfaceCreatedWithAlpha)) + { + // Surface is invalid! + destroyGlSurfaceForPixmap(pixmapData); } - } - Q_ASSERT(pixmapData->gl_surface); + if (pixmapData->gl_surface == 0) { + EGLConfig config = QEgl::defaultConfig(QInternal::Pixmap, + QEgl::OpenGL, + hasAlpha ? QEgl::Translucent : QEgl::NoOptions); - GLuint textureId; - glGenTextures(1, &textureId); - glBindTexture(GL_TEXTURE_2D, textureId); + pixmapData->gl_surface = (void*)QEgl::createSurface(pixmap, config); + if (pixmapData->gl_surface == (void*)EGL_NO_SURFACE) + return false; + } - // bind the egl pixmap surface to a texture - EGLBoolean success; - success = eglBindTexImage(eglContext->display(), (EGLSurface)pixmapData->gl_surface, EGL_BACK_BUFFER); - if (success == EGL_FALSE) { - qWarning() << "eglBindTexImage() failed:" << eglContext->errorString(eglGetError()); - eglDestroySurface(eglContext->display(), (EGLSurface)pixmapData->gl_surface); - pixmapData->gl_surface = (Qt::HANDLE)EGL_NO_SURFACE; - haveTFP = false; - return 0; + EGLBoolean success; + success = eglBindTexImage(QEgl::display(), (EGLSurface)pixmapData->gl_surface, EGL_BACK_BUFFER); + if (success == EGL_FALSE) { + qWarning() << "eglBindTexImage() failed:" << QEgl::errorString(); + eglDestroySurface(QEgl::display(), (EGLSurface)pixmapData->gl_surface); + pixmapData->gl_surface = (void*)EGL_NO_SURFACE; + haveTFP = false; // If TFP isn't working, disable it's use + } else + textureIsBound = true; } - QGLTexture *texture = new QGLTexture(q, textureId, GL_TEXTURE_2D, options); - pixmapData->flags |= QX11PixmapData::InvertedWhenBoundToTexture; + QGLTexture *texture = 0; - // We assume the cost of bound pixmaps is zero - QGLTextureCache::instance()->insert(q, key, texture, 0); + if (textureIsBound) { + texture = new QGLTexture(q, textureId, GL_TEXTURE_2D, options); + pixmapData->flags |= QX11PixmapData::InvertedWhenBoundToTexture; + + // We assume the cost of bound pixmaps is zero + QGLTextureCache::instance()->insert(q, key, texture, 0); + + glBindTexture(GL_TEXTURE_2D, textureId); + } else + glDeleteTextures(1, &textureId); - glBindTexture(GL_TEXTURE_2D, textureId); return texture; } + void QGLContextPrivate::destroyGlSurfaceForPixmap(QPixmapData* pmd) { Q_ASSERT(pmd->classId() == QPixmapData::X11Class); QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(pmd); if (pixmapData->gl_surface) { EGLBoolean success; - success = eglDestroySurface(QEglContext::display(), (EGLSurface)pixmapData->gl_surface); + success = eglDestroySurface(QEgl::display(), (EGLSurface)pixmapData->gl_surface); if (success == EGL_FALSE) { qWarning() << "destroyGlSurfaceForPixmap() - Error deleting surface: " - << QEglContext::errorString(eglGetError()); + << QEgl::errorString(); } pixmapData->gl_surface = 0; } @@ -772,12 +527,12 @@ void QGLContextPrivate::unbindPixmapFromTexture(QPixmapData* pmd) QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(pmd); if (pixmapData->gl_surface) { EGLBoolean success; - success = eglReleaseTexImage(QEglContext::display(), + success = eglReleaseTexImage(QEgl::display(), (EGLSurface)pixmapData->gl_surface, EGL_BACK_BUFFER); if (success == EGL_FALSE) { qWarning() << "unbindPixmapFromTexture() - Unable to release bound texture: " - << QEglContext::errorString(eglGetError()); + << QEgl::errorString(); } } } diff --git a/src/opengl/qglbuffer.cpp b/src/opengl/qglbuffer.cpp new file mode 100644 index 0000000..d6e0109 --- /dev/null +++ b/src/opengl/qglbuffer.cpp @@ -0,0 +1,576 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtOpenGL module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtOpenGL/qgl.h> +#include <QtOpenGL/private/qgl_p.h> +#include <QtOpenGL/private/qglextensions_p.h> +#include <QtCore/qatomic.h> +#include "qglbuffer.h" + +QT_BEGIN_NAMESPACE + +/*! + \class QGLBuffer + \brief The QGLBuffer class provides functions for creating and managing GL buffer objects. + \since 4.7 + \ingroup painting-3D + + Buffer objects are created in the GL server so that the + client application can avoid uploading vertices, indices, + texture image data, etc every time they are needed. + + QGLBuffer objects can be copied around as a reference to the + underlying GL buffer object: + + \code + QGLBuffer buffer1(QGLBuffer::IndexBuffer); + buffer1.create(); + + QGLBuffer buffer2 = buffer1; + \endcode + + QGLBuffer performs a shallow copy when objects are copied in this + manner, but does not implement copy-on-write semantics. The original + object will be affected whenever the copy is modified. +*/ + +/*! + \enum QGLBuffer::Type + This enum defines the type of GL buffer object to create with QGLBuffer. + + \value VertexBuffer Vertex buffer object for use when specifying + vertex arrays. + \value IndexBuffer Index buffer object for use with \c{glDrawElements()}. + \value PixelPackBuffer Pixel pack buffer object for reading pixel + data from the GL server (for example, with \c{glReadPixels()}). + Not supported under OpenGL/ES. + \value PixelUnpackBuffer Pixel unpack buffer object for writing pixel + data to the GL server (for example, with \c{glTexImage2D()}). + Not supported under OpenGL/ES. +*/ + +/*! + \enum QGLBuffer::UsagePattern + This enum defines the usage pattern of a QGLBuffer object. + + \value StreamDraw The data will be set once and used a few times + for drawing operations. Under OpenGL/ES 1.1 this is identical + to StaticDraw. + \value StreamRead The data will be set once and used a few times + for reading data back from the GL server. Not supported + under OpenGL/ES. + \value StreamCopy The data will be set once and used a few times + for reading data back from the GL server for use in further + drawing operations. Not supported under OpenGL/ES. + \value StaticDraw The data will be set once and used many times + for drawing operations. + \value StaticRead The data will be set once and used many times + for reading data back from the GL server. Not supported + under OpenGL/ES. + \value StaticCopy The data will be set once and used many times + for reading data back from the GL server for use in further + drawing operations. Not supported under OpenGL/ES. + \value DynamicDraw The data will be modified repeatedly and used + many times for drawing operations. + \value DynamicRead The data will be modified repeatedly and used + many times for reading data back from the GL server. + Not supported under OpenGL/ES. + \value DynamicCopy The data will be modified repeatedly and used + many times for reading data back from the GL server for + use in further drawing operations. Not supported under OpenGL/ES. +*/ + +/*! + \enum QGLBuffer::Access + This enum defines the access mode for QGLBuffer::map(). + + \value ReadOnly The buffer will be mapped for reading only. + \value WriteOnly The buffer will be mapped for writing only. + \value ReadWrite The buffer will be mapped for reading and writing. +*/ + +class QGLBufferPrivate +{ +public: + QGLBufferPrivate(QGLBuffer::Type t) + : ref(1), + type(t), + guard(0), + usagePattern(QGLBuffer::StaticDraw), + actualUsagePattern(QGLBuffer::StaticDraw) + { + } + + QAtomicInt ref; + QGLBuffer::Type type; + QGLSharedResourceGuard guard; + QGLBuffer::UsagePattern usagePattern; + QGLBuffer::UsagePattern actualUsagePattern; +}; + +/*! + Constructs a new buffer object of type QGLBuffer::VertexBuffer. + + Note: this constructor just creates the QGLBuffer instance. The actual + buffer object in the GL server is not created until create() is called. + + \sa create() +*/ +QGLBuffer::QGLBuffer() + : d_ptr(new QGLBufferPrivate(QGLBuffer::VertexBuffer)) +{ +} + +/*! + Constructs a new buffer object of \a type. + + Note: this constructor just creates the QGLBuffer instance. The actual + buffer object in the GL server is not created until create() is called. + + \sa create() +*/ +QGLBuffer::QGLBuffer(QGLBuffer::Type type) + : d_ptr(new QGLBufferPrivate(type)) +{ +} + +/*! + Constructs a shallow copy of \a other. + + Note: QGLBuffer does not implement copy-on-write semantics, + so \a other will be affected whenever the copy is modified. +*/ +QGLBuffer::QGLBuffer(const QGLBuffer &other) + : d_ptr(other.d_ptr) +{ + d_ptr->ref.ref(); +} + +#define ctx d->guard.context() + +/*! + Destroys this buffer object, including the storage being + used in the GL server. +*/ +QGLBuffer::~QGLBuffer() +{ + if (!d_ptr->ref.deref()) { + destroy(); + delete d_ptr; + } +} + +/*! + Assigns a shallow copy of \a other to this object. + + Note: QGLBuffer does not implement copy-on-write semantics, + so \a other will be affected whenever the copy is modified. +*/ +QGLBuffer &QGLBuffer::operator=(const QGLBuffer &other) +{ + if (d_ptr != other.d_ptr) { + other.d_ptr->ref.ref(); + if (!d_ptr->ref.deref()) + destroy(); + d_ptr = other.d_ptr; + } + return *this; +} + +/*! + Returns the type of buffer represented by this object. +*/ +QGLBuffer::Type QGLBuffer::type() const +{ + Q_D(const QGLBuffer); + return d->type; +} + +/*! + Returns the usage pattern for this buffer object. + The default value is StaticDraw. + + \sa setUsagePattern() +*/ +QGLBuffer::UsagePattern QGLBuffer::usagePattern() const +{ + Q_D(const QGLBuffer); + return d->usagePattern; +} + +/*! + Sets the usage pattern for this buffer object to \a value. + This function must be called before allocate() or write(). + + \sa usagePattern(), allocate(), write() +*/ +void QGLBuffer::setUsagePattern(QGLBuffer::UsagePattern value) +{ + Q_D(QGLBuffer); +#if defined(QT_OPENGL_ES_1) + // OpenGL/ES 1.1 does not support GL_STREAM_DRAW, so use GL_STATIC_DRAW. + // OpenGL/ES 2.0 does support GL_STREAM_DRAW. + d->usagePattern = value; + if (value == StreamDraw) + d->actualUsagePattern = StaticDraw; + else + d->actualUsagePattern = value; +#else + d->usagePattern = d->actualUsagePattern = value; +#endif +} + +#undef ctx + +/*! + Creates the buffer object in the GL server. Returns true if + the object was created; false otherwise. + + This function must be called with a current QGLContext. + The buffer will be bound to and can only be used in + that context (or any other context that is shared with it). + + This function will return false if the GL implementation + does not support buffers, or there is no current QGLContext. + + \sa isCreated(), allocate(), write(), destroy() +*/ +bool QGLBuffer::create() +{ + Q_D(QGLBuffer); + if (d->guard.id()) + return true; + const QGLContext *ctx = QGLContext::currentContext(); + if (ctx) { + if (!qt_resolve_buffer_extensions(const_cast<QGLContext *>(ctx))) + return false; + GLuint bufferId = 0; + glGenBuffers(1, &bufferId); + if (bufferId) { + d->guard.setContext(ctx); + d->guard.setId(bufferId); + return true; + } + } + return false; +} + +#define ctx d->guard.context() + +/*! + Returns true if this buffer has been created; false otherwise. + + \sa create(), destroy() +*/ +bool QGLBuffer::isCreated() const +{ + Q_D(const QGLBuffer); + return d->guard.id() != 0; +} + +/*! + Destroys this buffer object, including the storage being + used in the GL server. All references to the buffer will + become invalid. +*/ +void QGLBuffer::destroy() +{ + Q_D(QGLBuffer); + GLuint bufferId = d->guard.id(); + if (bufferId) { + // Switch to the original creating context to destroy it. + QGLShareContextScope scope(d->guard.context()); + glDeleteBuffers(1, &bufferId); + } + d->guard.setId(0); + d->guard.setContext(0); +} + +/*! + Reads the \a count bytes in this buffer starting at \a offset + into \a data. Returns true on success; false if reading from + the buffer is not supported. Buffer reading is not supported + under OpenGL/ES. + + It is assumed that this buffer has been bound to the current context. + + \sa write(), bind() +*/ +bool QGLBuffer::read(int offset, void *data, int count) +{ +#if !defined(QT_OPENGL_ES) + Q_D(QGLBuffer); + if (!glGetBufferSubData || !d->guard.id()) + return false; + while (glGetError() != GL_NO_ERROR) ; // Clear error state. + glGetBufferSubData(d->type, offset, count, data); + return glGetError() == GL_NO_ERROR; +#else + Q_UNUSED(offset); + Q_UNUSED(data); + Q_UNUSED(count); + return false; +#endif +} + +/*! + Replaces the \a count bytes of this buffer starting at \a offset + with the contents of \a data. Any other bytes in the buffer + will be left unmodified. + + It is assumed that create() has been called on this buffer and that + it has been bound to the current context. + + \sa create(), read(), allocate() +*/ +void QGLBuffer::write(int offset, const void *data, int count) +{ +#ifndef QT_NO_DEBUG + if (!isCreated()) + qWarning("QGLBuffer::allocate(): buffer not created"); +#endif + Q_D(QGLBuffer); + if (d->guard.id()) + glBufferSubData(d->type, offset, count, data); +} + +/*! + Allocates \a count bytes of space to the buffer, initialized to + the contents of \a data. Any previous contents will be removed. + + It is assumed that create() has been called on this buffer and that + it has been bound to the current context. + + \sa create(), read(), write() +*/ +void QGLBuffer::allocate(const void *data, int count) +{ +#ifndef QT_NO_DEBUG + if (!isCreated()) + qWarning("QGLBuffer::allocate(): buffer not created"); +#endif + Q_D(QGLBuffer); + if (d->guard.id()) + glBufferData(d->type, count, data, d->actualUsagePattern); +} + +/*! + \fn void QGLBuffer::allocate(int count) + \overload + + Allocates \a count bytes of space to the buffer. Any previous + contents will be removed. + + It is assumed that create() has been called on this buffer and that + it has been bound to the current context. + + \sa create(), write() +*/ + +/*! + Binds the buffer associated with this object to the current + GL context. Returns false if binding was not possible, usually because + type() is not supported on this GL implementation. + + The buffer must be bound to the same QGLContext current when create() + was called, or to another QGLContext that is sharing with it. + Otherwise, false will be returned from this function. + + \sa release(), create() +*/ +bool QGLBuffer::bind() const +{ +#ifndef QT_NO_DEBUG + if (!isCreated()) + qWarning("QGLBuffer::bind(): buffer not created"); +#endif + Q_D(const QGLBuffer); + GLuint bufferId = d->guard.id(); + if (bufferId) { + if (!QGLContext::areSharing(QGLContext::currentContext(), + d->guard.context())) { +#ifndef QT_NO_DEBUG + qWarning("QGLBuffer::bind: buffer is not valid in the current context"); +#endif + return false; + } + glBindBuffer(d->type, bufferId); + return true; + } else { + return false; + } +} + +/*! + Releases the buffer associated with this object from the + current GL context. + + This function must be called with the same QGLContext current + as when bind() was called on the buffer. + + \sa bind() +*/ +void QGLBuffer::release() const +{ +#ifndef QT_NO_DEBUG + if (!isCreated()) + qWarning("QGLBuffer::release(): buffer not created"); +#endif + Q_D(const QGLBuffer); + if (d->guard.id()) + glBindBuffer(d->type, 0); +} + +#undef ctx + +/*! + Releases the buffer associated with \a type in the current + QGLContext. + + This function is a direct call to \c{glBindBuffer(type, 0)} + for use when the caller does not know which QGLBuffer has + been bound to the context but wants to make sure that it + is released. + + \code + QGLBuffer::release(QGLBuffer::VertexBuffer); + \endcode +*/ +void QGLBuffer::release(QGLBuffer::Type type) +{ + const QGLContext *ctx = QGLContext::currentContext(); + if (ctx && qt_resolve_buffer_extensions(const_cast<QGLContext *>(ctx))) + glBindBuffer(GLenum(type), 0); +} + +#define ctx d->guard.context() + +/*! + Returns the GL identifier associated with this buffer; zero if + the buffer has not been created. + + \sa isCreated() +*/ +GLuint QGLBuffer::bufferId() const +{ + Q_D(const QGLBuffer); + return d->guard.id(); +} + +#ifndef GL_BUFFER_SIZE +#define GL_BUFFER_SIZE 0x8764 +#endif + +/*! + Returns the size of the data in this buffer, for reading operations. + Returns -1 if fetching the buffer size is not supported, or the + buffer has not been created. + + It is assumed that this buffer has been bound to the current context. + + \sa isCreated(), bind() +*/ +int QGLBuffer::size() const +{ + Q_D(const QGLBuffer); + if (!d->guard.id()) + return -1; + GLint value = -1; + glGetBufferParameteriv(d->type, GL_BUFFER_SIZE, &value); + return value; +} + +/*! + Maps the contents of this buffer into the application's memory + space and returns a pointer to it. Returns null if memory + mapping is not possible. The \a access parameter indicates the + type of access to be performed. + + It is assumed that create() has been called on this buffer and that + it has been bound to the current context. + + This function is only supported under OpenGL/ES if the + \c{GL_OES_mapbuffer} extension is present. + + \sa unmap(), create(), bind() +*/ +void *QGLBuffer::map(QGLBuffer::Access access) +{ + Q_D(QGLBuffer); +#ifndef QT_NO_DEBUG + if (!isCreated()) + qWarning("QGLBuffer::map(): buffer not created"); +#endif + if (!d->guard.id()) + return 0; + if (!glMapBufferARB) + return 0; + return glMapBufferARB(d->type, access); +} + +/*! + Unmaps the buffer after it was mapped into the application's + memory space with a previous call to map(). Returns true if + the unmap succeeded; false otherwise. + + It is assumed that this buffer has been bound to the current context, + and that it was previously mapped with map(). + + This function is only supported under OpenGL/ES if the + \c{GL_OES_mapbuffer} extension is present. + + \sa map() +*/ +bool QGLBuffer::unmap() +{ + Q_D(QGLBuffer); +#ifndef QT_NO_DEBUG + if (!isCreated()) + qWarning("QGLBuffer::unmap(): buffer not created"); +#endif + if (!d->guard.id()) + return false; + if (!glUnmapBufferARB) + return false; + return glUnmapBufferARB(d->type) == GL_TRUE; +} + +QT_END_NAMESPACE diff --git a/src/opengl/qglbuffer.h b/src/opengl/qglbuffer.h new file mode 100644 index 0000000..a1b45ff --- /dev/null +++ b/src/opengl/qglbuffer.h @@ -0,0 +1,132 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtOpenGL module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QGLBUFFER_H +#define QGLBUFFER_H + +#include <QtCore/qscopedpointer.h> +#include <QtOpenGL/qgl.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(OpenGL) + +class QGLBufferPrivate; + +class Q_OPENGL_EXPORT QGLBuffer +{ +public: + enum Type + { + VertexBuffer = 0x8892, // GL_ARRAY_BUFFER + IndexBuffer = 0x8893, // GL_ELEMENT_ARRAY_BUFFER + PixelPackBuffer = 0x88EB, // GL_PIXEL_PACK_BUFFER + PixelUnpackBuffer = 0x88EC // GL_PIXEL_UNPACK_BUFFER + }; + + QGLBuffer(); + explicit QGLBuffer(QGLBuffer::Type type); + QGLBuffer(const QGLBuffer &other); + ~QGLBuffer(); + + QGLBuffer &operator=(const QGLBuffer &other); + + enum UsagePattern + { + StreamDraw = 0x88E0, // GL_STREAM_DRAW + StreamRead = 0x88E1, // GL_STREAM_READ + StreamCopy = 0x88E2, // GL_STREAM_COPY + StaticDraw = 0x88E4, // GL_STATIC_DRAW + StaticRead = 0x88E5, // GL_STATIC_READ + StaticCopy = 0x88E6, // GL_STATIC_COPY + DynamicDraw = 0x88E8, // GL_DYNAMIC_DRAW + DynamicRead = 0x88E9, // GL_DYNAMIC_READ + DynamicCopy = 0x88EA // GL_DYNAMIC_COPY + }; + + enum Access + { + ReadOnly = 0x88B8, // GL_READ_ONLY + WriteOnly = 0x88B9, // GL_WRITE_ONLY + ReadWrite = 0x88BA // GL_READ_WRITE + }; + + QGLBuffer::Type type() const; + + QGLBuffer::UsagePattern usagePattern() const; + void setUsagePattern(QGLBuffer::UsagePattern value); + + bool create(); + bool isCreated() const; + + void destroy(); + + bool bind() const; + void release() const; + + static void release(QGLBuffer::Type type); + + GLuint bufferId() const; + + int size() const; + + bool read(int offset, void *data, int count); + void write(int offset, const void *data, int count); + + void allocate(const void *data, int count); + inline void allocate(int count) { allocate(0, count); } + + void *map(QGLBuffer::Access access); + bool unmap(); + +private: + QGLBufferPrivate *d_ptr; + + Q_DECLARE_PRIVATE(QGLBuffer) +}; + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif diff --git a/src/opengl/qglextensions.cpp b/src/opengl/qglextensions.cpp index c091191..8e2bbd4 100644 --- a/src/opengl/qglextensions.cpp +++ b/src/opengl/qglextensions.cpp @@ -191,35 +191,51 @@ bool qt_resolve_frag_program_extensions(QGLContext *ctx) bool qt_resolve_buffer_extensions(QGLContext *ctx) { - if (glMapBufferARB && glUnmapBufferARB -#if !defined(QT_OPENGL_ES_2) - && glBindBuffer && glDeleteBuffers && glGenBuffers && glBufferData -#endif - ) +#if defined(QGL_RESOLVE_BUFFER_FUNCS) + if (glBindBuffer && glDeleteBuffers && glGenBuffers && glBufferData + && glBufferSubData && glGetBufferParameteriv) return true; +#endif -#if !defined(QT_OPENGL_ES_2) +#if defined(QGL_RESOLVE_BUFFER_FUNCS) glBindBuffer = (_glBindBuffer) qt_gl_getProcAddressARB(ctx, "glBindBuffer"); glDeleteBuffers = (_glDeleteBuffers) qt_gl_getProcAddressARB(ctx, "glDeleteBuffers"); glGenBuffers = (_glGenBuffers) qt_gl_getProcAddressARB(ctx, "glGenBuffers"); glBufferData = (_glBufferData) qt_gl_getProcAddressARB(ctx, "glBufferData"); + glBufferSubData = (_glBufferSubData) qt_gl_getProcAddressARB(ctx, "glBufferSubData"); + glGetBufferSubData = (_glGetBufferSubData) qt_gl_getProcAddressARB(ctx, "glGetBufferSubData"); + glGetBufferParameteriv = (_glGetBufferParameteriv) qt_gl_getProcAddressARB(ctx, "glGetBufferParameteriv"); #endif glMapBufferARB = (_glMapBufferARB) qt_gl_getProcAddressARB(ctx, "glMapBuffer"); glUnmapBufferARB = (_glUnmapBufferARB) qt_gl_getProcAddressARB(ctx, "glUnmapBuffer"); - return glMapBufferARB - && glUnmapBufferARB -#if !defined(QT_OPENGL_ES_2) - && glBindBuffer +#if defined(QGL_RESOLVE_BUFFER_FUNCS) + return glBindBuffer && glDeleteBuffers && glGenBuffers && glBufferData + && glBufferSubData + && glGetBufferParameteriv; + // glGetBufferSubData() is optional +#else + return true; #endif - ; } +#ifndef QT_NO_EGL +bool qt_resolve_eglimage_gl_extensions(QGLContext *ctx) +{ + if (glEGLImageTargetTexture2DOES || glEGLImageTargetRenderbufferStorageOES) + return true; + glEGLImageTargetTexture2DOES = (_glEGLImageTargetTexture2DOES) ctx->getProcAddress(QLatin1String("glEGLImageTargetTexture2DOES")); + glEGLImageTargetRenderbufferStorageOES = (_glEGLImageTargetRenderbufferStorageOES) ctx->getProcAddress(QLatin1String("glEGLImageTargetRenderbufferStorageOES")); + return glEGLImageTargetTexture2DOES && glEGLImageTargetRenderbufferStorageOES; +} +#endif + bool qt_resolve_glsl_extensions(QGLContext *ctx) { + #if defined(QT_OPENGL_ES_2) // The GLSL shader functions are always present in OpenGL/ES 2.0. // The only exceptions are glGetProgramBinaryOES and glProgramBinaryOES. @@ -233,6 +249,12 @@ bool qt_resolve_glsl_extensions(QGLContext *ctx) if (glCreateShader) return true; + // Geometry shaders are optional... + glProgramParameteriEXT = (_glProgramParameteriEXT) ctx->getProcAddress(QLatin1String("glProgramParameteriEXT")); + glFramebufferTextureEXT = (_glFramebufferTextureEXT) ctx->getProcAddress(QLatin1String("glFramebufferTextureEXT")); + glFramebufferTextureLayerEXT = (_glFramebufferTextureLayerEXT) ctx->getProcAddress(QLatin1String("glFramebufferTextureLayerEXT")); + glFramebufferTextureFaceEXT = (_glFramebufferTextureFaceEXT) ctx->getProcAddress(QLatin1String("glFramebufferTextureFaceEXT")); + glCreateShader = (_glCreateShader) ctx->getProcAddress(QLatin1String("glCreateShader")); if (glCreateShader) { glShaderSource = (_glShaderSource) ctx->getProcAddress(QLatin1String("glShaderSource")); diff --git a/src/opengl/qglextensions_p.h b/src/opengl/qglextensions_p.h index b0cb429..6259cca 100644 --- a/src/opengl/qglextensions_p.h +++ b/src/opengl/qglextensions_p.h @@ -68,9 +68,15 @@ # define APIENTRYP * #endif +#ifndef QT_NO_EGL +// Needed for EGLImageKHR definition: +#include <QtGui/private/qegl_p.h> +#endif + #include <QtCore/qglobal.h> #ifndef GL_ARB_vertex_buffer_object +typedef ptrdiff_t GLintptrARB; typedef ptrdiff_t GLsizeiptrARB; #endif @@ -78,13 +84,25 @@ typedef ptrdiff_t GLsizeiptrARB; typedef char GLchar; #endif -// ARB_pixel_buffer_object +// ARB_vertex_buffer_object typedef void (APIENTRY *_glBindBuffer) (GLenum, GLuint); typedef void (APIENTRY *_glDeleteBuffers) (GLsizei, const GLuint *); typedef void (APIENTRY *_glGenBuffers) (GLsizei, GLuint *); typedef void (APIENTRY *_glBufferData) (GLenum, GLsizeiptrARB, const GLvoid *, GLenum); +typedef void (APIENTRY *_glBufferSubData) (GLenum, GLintptrARB, GLsizeiptrARB, const GLvoid *); +typedef void (APIENTRY *_glGetBufferSubData) (GLenum, GLintptrARB, GLsizeiptrARB, GLvoid *); +typedef void (APIENTRY *_glGetBufferParameteriv) (GLenum, GLenum, GLint *); typedef GLvoid* (APIENTRY *_glMapBufferARB) (GLenum, GLenum); typedef GLboolean (APIENTRY *_glUnmapBufferARB) (GLenum); +// We can call the buffer functions directly in OpenGL/ES 1.1 or higher, +// but all other platforms need to resolve the extensions. +#if defined(QT_OPENGL_ES) +#if defined(GL_OES_VERSION_1_0) && !defined(GL_OES_VERSION_1_1) +#define QGL_RESOLVE_BUFFER_FUNCS 1 +#endif +#else +#define QGL_RESOLVE_BUFFER_FUNCS 1 +#endif // ARB_fragment_program typedef void (APIENTRY *_glProgramStringARB) (GLenum, GLenum, GLsizei, const GLvoid *); @@ -184,10 +202,27 @@ typedef void (APIENTRY *_glBlitFramebufferEXT) (int srcX0, int srcY0, int srcX1, typedef void (APIENTRY *_glRenderbufferStorageMultisampleEXT) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); +// GL_EXT_geometry_shader4 +typedef void (APIENTRY *_glProgramParameteriEXT)(GLuint program, GLenum pname, GLint value); +typedef void (APIENTRY *_glFramebufferTextureEXT)(GLenum target, GLenum attachment, + GLuint texture, GLint level); +typedef void (APIENTRY *_glFramebufferTextureLayerEXT)(GLenum target, GLenum attachment, + GLuint texture, GLint level, GLint layer); +typedef void (APIENTRY *_glFramebufferTextureFaceEXT)(GLenum target, GLenum attachment, + GLuint texture, GLint level, GLenum face); + // ARB_texture_compression typedef void (APIENTRY *_glCompressedTexImage2DARB) (GLenum, GLint, GLenum, GLsizei, GLsizei, GLint, GLsizei, const GLvoid *); +#ifndef QT_NO_EGL +// OES_EGL_image +// Note: We define these to take EGLImage whereas spec says they take a new GLeglImageOES +// type, which the EGL image should be cast to. +typedef void (APIENTRY *_glEGLImageTargetTexture2DOES) (GLenum, EGLImageKHR); +typedef void (APIENTRY *_glEGLImageTargetRenderbufferStorageOES) (GLenum, EGLImageKHR); +#endif + QT_BEGIN_NAMESPACE struct QGLExtensionFuncs @@ -285,19 +320,32 @@ struct QGLExtensionFuncs qt_glRenderbufferStorageMultisampleEXT = 0; // Buffer objects: -#if !defined(QT_OPENGL_ES_2) +#if defined(QGL_RESOLVE_BUFFER_FUNCS) qt_glBindBuffer = 0; qt_glDeleteBuffers = 0; qt_glGenBuffers = 0; qt_glBufferData = 0; + qt_glBufferSubData = 0; + qt_glGetBufferSubData = 0; + qt_glGetBufferParameteriv = 0; #endif qt_glMapBufferARB = 0; qt_glUnmapBufferARB = 0; + qt_glProgramParameteriEXT = 0; + qt_glFramebufferTextureEXT = 0; + qt_glFramebufferTextureLayerEXT = 0; + qt_glFramebufferTextureFaceEXT = 0; #if !defined(QT_OPENGL_ES) // Texture compression qt_glCompressedTexImage2DARB = 0; #endif + +#ifndef QT_NO_EGL + // OES_EGL_image + qt_glEGLImageTargetTexture2DOES = 0; + qt_glEGLImageTargetRenderbufferStorageOES = 0; +#endif } @@ -397,24 +445,47 @@ struct QGLExtensionFuncs _glRenderbufferStorageMultisampleEXT qt_glRenderbufferStorageMultisampleEXT; // Buffer objects -#if !defined(QT_OPENGL_ES_2) +#if defined(QGL_RESOLVE_BUFFER_FUNCS) _glBindBuffer qt_glBindBuffer; _glDeleteBuffers qt_glDeleteBuffers; _glGenBuffers qt_glGenBuffers; _glBufferData qt_glBufferData; + _glBufferSubData qt_glBufferSubData; + _glGetBufferSubData qt_glGetBufferSubData; + _glGetBufferParameteriv qt_glGetBufferParameteriv; #endif _glMapBufferARB qt_glMapBufferARB; _glUnmapBufferARB qt_glUnmapBufferARB; + // Geometry shaders... + _glProgramParameteriEXT qt_glProgramParameteriEXT; + _glFramebufferTextureEXT qt_glFramebufferTextureEXT; + _glFramebufferTextureLayerEXT qt_glFramebufferTextureLayerEXT; + _glFramebufferTextureFaceEXT qt_glFramebufferTextureFaceEXT; #if !defined(QT_OPENGL_ES) // Texture compression _glCompressedTexImage2DARB qt_glCompressedTexImage2DARB; #endif + +#ifndef QT_NO_EGL + // OES_EGL_image + _glEGLImageTargetTexture2DOES qt_glEGLImageTargetTexture2DOES; + _glEGLImageTargetRenderbufferStorageOES qt_glEGLImageTargetRenderbufferStorageOES; +#endif + }; // OpenGL constants +#ifndef GL_ARRAY_BUFFER +#define GL_ARRAY_BUFFER 0x8892 +#endif + +#ifndef GL_STATIC_DRAW +#define GL_STATIC_DRAW 0x88E4 +#endif + /* NV_texture_rectangle */ #ifndef GL_NV_texture_rectangle #define GL_TEXTURE_RECTANGLE_NV 0x84F5 @@ -428,11 +499,11 @@ struct QGLExtensionFuncs #endif #ifndef GL_RGB16 -#define GL_RGB16 32852 +#define GL_RGB16 0x8054 #endif #ifndef GL_UNSIGNED_SHORT_5_6_5 -#define GL_UNSIGNED_SHORT_5_6_5 33635 +#define GL_UNSIGNED_SHORT_5_6_5 0x8363 #endif #ifndef GL_UNSIGNED_INT_8_8_8_8_REV @@ -599,6 +670,20 @@ struct QGLExtensionFuncs #define GL_DECR_WRAP 0x8508 #endif +#ifndef GL_VERSION_1_5 +#define GL_ARRAY_BUFFER 0x8892 +#define GL_ELEMENT_ARRAY_BUFFER 0x8893 +#define GL_STREAM_DRAW 0x88E0 +#define GL_STREAM_READ 0x88E1 +#define GL_STREAM_COPY 0x88E2 +#define GL_STATIC_DRAW 0x88E4 +#define GL_STATIC_READ 0x88E5 +#define GL_STATIC_COPY 0x88E6 +#define GL_DYNAMIC_DRAW 0x88E8 +#define GL_DYNAMIC_READ 0x88E9 +#define GL_DYNAMIC_COPY 0x88EA +#endif + #ifndef GL_VERSION_2_0 #define GL_FRAGMENT_SHADER 0x8B30 #define GL_VERTEX_SHADER 0x8B31 @@ -628,6 +713,29 @@ struct QGLExtensionFuncs #define GL_ACTIVE_ATTRIBUTE_MAX_LENGTH 0x8B8A #endif +// Geometry shader defines +#ifndef GL_GEOMETRY_SHADER_EXT +# define GL_GEOMETRY_SHADER_EXT 0x8DD9 +# define GL_GEOMETRY_VERTICES_OUT_EXT 0x8DDA +# define GL_GEOMETRY_INPUT_TYPE_EXT 0x8DDB +# define GL_GEOMETRY_OUTPUT_TYPE_EXT 0x8DDC +# define GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_EXT 0x8C29 +# define GL_MAX_GEOMETRY_VARYING_COMPONENTS_EXT 0x8DDD +# define GL_MAX_VERTEX_VARYING_COMPONENTS_EXT 0x8DDE +# define GL_MAX_VARYING_COMPONENTS_EXT 0x8B4B +# define GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_EXT 0x8DDF +# define GL_MAX_GEOMETRY_OUTPUT_VERTICES_EXT 0x8DE0 +# define GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_EXT 0x8DE1 +# define GL_LINES_ADJACENCY_EXT 0xA +# define GL_LINE_STRIP_ADJACENCY_EXT 0xB +# define GL_TRIANGLES_ADJACENCY_EXT 0xC +# define GL_TRIANGLE_STRIP_ADJACENCY_EXT 0xD +# define GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS_EXT 0x8DA8 +# define GL_FRAMEBUFFER_INCOMPLETE_LAYER_COUNT_EXT 0x8DA9 +# define GL_FRAMEBUFFER_ATTACHMENT_LAYERED_EXT 0x8DA7 +# define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER_EXT 0x8CD4 +# define GL_PROGRAM_POINT_SIZE_EXT 0x8642 +#endif #if !defined(QT_OPENGL_ES_2) #define glProgramStringARB QGLContextPrivate::extensionFuncs(ctx).qt_glProgramStringARB @@ -667,11 +775,14 @@ struct QGLExtensionFuncs // Buffer objects -#if !defined(QT_OPENGL_ES_2) +#if defined(QGL_RESOLVE_BUFFER_FUNCS) #define glBindBuffer QGLContextPrivate::extensionFuncs(ctx).qt_glBindBuffer #define glDeleteBuffers QGLContextPrivate::extensionFuncs(ctx).qt_glDeleteBuffers #define glGenBuffers QGLContextPrivate::extensionFuncs(ctx).qt_glGenBuffers #define glBufferData QGLContextPrivate::extensionFuncs(ctx).qt_glBufferData +#define glBufferSubData QGLContextPrivate::extensionFuncs(ctx).qt_glBufferSubData +#define glGetBufferSubData QGLContextPrivate::extensionFuncs(ctx).qt_glGetBufferSubData +#define glGetBufferParameteriv QGLContextPrivate::extensionFuncs(ctx).qt_glGetBufferParameteriv #endif #define glMapBufferARB QGLContextPrivate::extensionFuncs(ctx).qt_glMapBufferARB #define glUnmapBufferARB QGLContextPrivate::extensionFuncs(ctx).qt_glUnmapBufferARB @@ -745,10 +856,21 @@ struct QGLExtensionFuncs #define glClearDepth glClearDepthf #endif +#define glProgramParameteriEXT QGLContextPrivate::extensionFuncs(ctx).qt_glProgramParameteriEXT +#define glFramebufferTextureEXT QGLContextPrivate::extensionFuncs(ctx).qt_glFramebufferTextureEXT +#define glFramebufferTextureLayerEXT QGLContextPrivate::extensionFuncs(ctx).qt_glFramebufferTextureLayerEXT +#define glFramebufferTextureFaceEXT QGLContextPrivate::extensionFuncs(ctx).qt_glFramebufferTextureFaceEXT + #if !defined(QT_OPENGL_ES) #define glCompressedTexImage2D QGLContextPrivate::extensionFuncs(ctx).qt_glCompressedTexImage2DARB #endif +#ifndef QT_NO_EGL +// OES_EGL_image +#define glEGLImageTargetTexture2DOES QGLContextPrivate::extensionFuncs(ctx).qt_glEGLImageTargetTexture2DOES +#define glEGLImageTargetRenderbufferStorageOES QGLContextPrivate::extensionFuncs(ctx).qt_glEGLImageTargetRenderbufferStorageOES +#endif + extern bool qt_resolve_framebufferobject_extensions(QGLContext *ctx); bool qt_resolve_buffer_extensions(QGLContext *ctx); @@ -759,6 +881,10 @@ bool qt_resolve_frag_program_extensions(QGLContext *ctx); bool qt_resolve_glsl_extensions(QGLContext *ctx); +#ifndef QT_NO_EGL +Q_OPENGL_EXPORT bool qt_resolve_eglimage_gl_extensions(QGLContext *ctx); +#endif + QT_END_NAMESPACE #endif // QGL_EXTENSIONS_P_H diff --git a/src/opengl/qglframebufferobject.cpp b/src/opengl/qglframebufferobject.cpp index dd6a3d5..deffc20 100644 --- a/src/opengl/qglframebufferobject.cpp +++ b/src/opengl/qglframebufferobject.cpp @@ -44,7 +44,7 @@ #include <qdebug.h> #include <private/qgl_p.h> -#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL) +#if !defined(QT_OPENGL_ES_1) #include <private/qpaintengineex_opengl2_p.h> #endif @@ -56,10 +56,6 @@ #include <qlibrary.h> #include <qimage.h> -#ifdef QT_OPENGL_ES_1_CL -#include "qgl_cl_p.h" -#endif - QT_BEGIN_NAMESPACE extern QImage qt_gl_read_framebuffer(const QSize&, bool, bool); @@ -132,7 +128,7 @@ void QGLFramebufferObjectFormat::detach() attachments, texture target \c GL_TEXTURE_2D, and internal format \c GL_RGBA8. On OpenGL/ES systems, the default internal format is \c GL_RGBA. - \sa samples(), attachment(), target(), internalTextureFormat() + \sa samples(), attachment(), internalTextureFormat() */ QGLFramebufferObjectFormat::QGLFramebufferObjectFormat() @@ -987,7 +983,7 @@ QImage QGLFramebufferObject::toImage() const return image; } -#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL) +#if !defined(QT_OPENGL_ES_1) Q_GLOBAL_STATIC(QGL2PaintEngineEx, qt_buffer_2_engine) #endif @@ -1002,7 +998,7 @@ QPaintEngine *QGLFramebufferObject::paintEngine() const if (d->engine) return d->engine; -#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL) +#if !defined(QT_OPENGL_ES_1) #if !defined (QT_OPENGL_ES_2) if (qt_gl_preferGL2Engine()) { #endif @@ -1028,6 +1024,36 @@ QPaintEngine *QGLFramebufferObject::paintEngine() const } /*! + \fn bool QGLFramebufferObject::bindDefault() + \internal + + Switches rendering back to the default, windowing system provided + framebuffer. + Returns true upon success, false otherwise. + + \sa bind(), release() +*/ +bool QGLFramebufferObject::bindDefault() +{ + QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext()); + + if (ctx) { + bool ext_detected = (QGLExtensions::glExtensions() & QGLExtensions::FramebufferObject); + if (!ext_detected || (ext_detected && !qt_resolve_framebufferobject_extensions(ctx))) + return false; + + ctx->d_ptr->current_fbo = ctx->d_ptr->default_fbo; + glBindFramebuffer(GL_FRAMEBUFFER_EXT, ctx->d_ptr->default_fbo); +#ifdef QT_DEBUG + } else { + qWarning("QGLFramebufferObject::bindDefault() called without current context."); +#endif + } + + return ctx != 0; +} + +/*! \fn bool QGLFramebufferObject::hasOpenGLFramebufferObjects() Returns true if the OpenGL \c{GL_EXT_framebuffer_object} extension diff --git a/src/opengl/qglframebufferobject.h b/src/opengl/qglframebufferobject.h index 306b6ff..6ff6645 100644 --- a/src/opengl/qglframebufferobject.h +++ b/src/opengl/qglframebufferobject.h @@ -108,6 +108,8 @@ public: QPaintEngine *paintEngine() const; GLuint handle() const; + static bool bindDefault(); + static bool hasOpenGLFramebufferObjects(); void drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D); diff --git a/src/opengl/qglpaintdevice.cpp b/src/opengl/qglpaintdevice.cpp index 8ba0108..e1dcbfd 100644 --- a/src/opengl/qglpaintdevice.cpp +++ b/src/opengl/qglpaintdevice.cpp @@ -48,14 +48,10 @@ #include <private/qpixmapdata_x11gl_p.h> #endif -#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL) +#if !defined(QT_OPENGL_ES_1) #include <private/qpixmapdata_gl_p.h> #endif -#if defined(QT_OPENGL_ES_1_CL) -#include "qgl_cl_p.h" -#endif - QT_BEGIN_NAMESPACE QGLPaintDevice::QGLPaintDevice() @@ -67,6 +63,22 @@ QGLPaintDevice::~QGLPaintDevice() { } +int QGLPaintDevice::metric(QPaintDevice::PaintDeviceMetric metric) const +{ + switch(metric) { + case PdmWidth: + return size().width(); + case PdmHeight: + return size().height(); + case PdmDepth: { + const QGLFormat f = format(); + return f.redBufferSize() + f.greenBufferSize() + f.blueBufferSize() + f.alphaBufferSize(); + } + default: + qWarning("QGLPaintDevice::metric() - metric %d not known", metric); + return 0; + } +} void QGLPaintDevice::beginPaint() { @@ -163,7 +175,10 @@ void QGLWidgetGLPaintDevice::beginPaint() float alpha = c.alphaF(); glClearColor(c.redF() * alpha, c.greenF() * alpha, c.blueF() * alpha, alpha); } - glClear(GL_COLOR_BUFFER_BIT); + if (context()->d_func()->workaround_needsFullClearOnEveryFrame) + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); + else + glClear(GL_COLOR_BUFFER_BIT); } } @@ -203,7 +218,7 @@ QGLPaintDevice* QGLPaintDevice::getDevice(QPaintDevice* pd) glpd = &(static_cast<QGLFramebufferObject*>(pd)->d_func()->glDevice); break; case QInternal::Pixmap: { -#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL) +#if !defined(QT_OPENGL_ES_1) QPixmapData* pmd = static_cast<QPixmap*>(pd)->pixmapData(); if (pmd->classId() == QPixmapData::OpenGLClass) glpd = static_cast<QGLPixmapData*>(pmd)->glDevice(); diff --git a/src/opengl/qglpaintdevice_p.h b/src/opengl/qglpaintdevice_p.h index 3d669da..04f9c3c 100644 --- a/src/opengl/qglpaintdevice_p.h +++ b/src/opengl/qglpaintdevice_p.h @@ -81,6 +81,7 @@ public: static QGLPaintDevice* getDevice(QPaintDevice*); protected: + int metric(QPaintDevice::PaintDeviceMetric metric) const; GLuint m_previousFBO; GLuint m_thisFBO; }; diff --git a/src/opengl/qglpixelbuffer.cpp b/src/opengl/qglpixelbuffer.cpp index 46f7697..9a8b243 100644 --- a/src/opengl/qglpixelbuffer.cpp +++ b/src/opengl/qglpixelbuffer.cpp @@ -78,7 +78,7 @@ #include <QtCore/qglobal.h> -#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL) +#if !defined(QT_OPENGL_ES_1) #include <private/qpaintengineex_opengl2_p.h> #endif @@ -137,14 +137,14 @@ void QGLPixelBufferPrivate::common_init(const QSize &size, const QGLFormat &form #if defined(Q_WS_WIN) && !defined(QT_OPENGL_ES) qctx->d_func()->dc = dc; qctx->d_func()->rc = ctx; -#elif (defined(Q_WS_X11) && !defined(QT_OPENGL_ES)) +#elif (defined(Q_WS_X11) && defined(QT_NO_EGL)) qctx->d_func()->cx = ctx; qctx->d_func()->pbuf = (void *) pbuf; qctx->d_func()->vi = 0; #elif defined(Q_WS_MAC) qctx->d_func()->cx = ctx; qctx->d_func()->vi = 0; -#elif defined(QT_OPENGL_ES) +#elif !defined(QT_NO_EGL) qctx->d_func()->eglContext = ctx; qctx->d_func()->eglSurface = pbuf; #endif @@ -254,7 +254,7 @@ bool QGLPixelBuffer::doneCurrent() \sa size() */ -#if (defined(Q_WS_X11) || defined(Q_WS_WIN)) && !defined(QT_OPENGL_ES) +#if (defined(Q_WS_X11) || defined(Q_WS_WIN)) && defined(QT_NO_EGL) GLuint QGLPixelBuffer::generateDynamicTexture() const { Q_D(const QGLPixelBuffer); @@ -387,7 +387,7 @@ bool QGLPixelBuffer::isValid() const return !d->invalid; } -#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL) +#if !defined(QT_OPENGL_ES_1) Q_GLOBAL_STATIC(QGL2PaintEngineEx, qt_buffer_2_engine) #endif @@ -398,7 +398,7 @@ Q_GLOBAL_STATIC(QOpenGLPaintEngine, qt_buffer_engine) /*! \reimp */ QPaintEngine *QGLPixelBuffer::paintEngine() const { -#if defined(QT_OPENGL_ES_1) || defined(QT_OPENGL_ES_1_CL) +#if defined(QT_OPENGL_ES_1) return qt_buffer_engine(); #elif defined(QT_OPENGL_ES_2) return qt_buffer_2_engine(); diff --git a/src/opengl/qglpixelbuffer.h b/src/opengl/qglpixelbuffer.h index 3304dd8..d9c7e3e 100644 --- a/src/opengl/qglpixelbuffer.h +++ b/src/opengl/qglpixelbuffer.h @@ -112,6 +112,7 @@ private: friend class QGLWindowSurface; friend class QGLPaintDevice; friend class QGLPBufferGLPaintDevice; + friend class QGLContextPrivate; }; QT_END_NAMESPACE diff --git a/src/opengl/qglpixelbuffer_egl.cpp b/src/opengl/qglpixelbuffer_egl.cpp index dbe919d..0b94f5a 100644 --- a/src/opengl/qglpixelbuffer_egl.cpp +++ b/src/opengl/qglpixelbuffer_egl.cpp @@ -47,10 +47,6 @@ #include <qimage.h> #include <private/qgl_p.h> -#ifdef QT_OPENGL_ES_1_CL -#include "qgl_cl_p.h" -#endif - QT_BEGIN_NAMESPACE #ifdef EGL_BIND_TO_TEXTURE_RGBA @@ -79,14 +75,15 @@ bool QGLPixelBufferPrivate::init(const QSize &size, const QGLFormat &f, QGLWidge ctx->setConfig(shareContext->config()); #if QGL_RENDER_TEXTURE EGLint value = EGL_FALSE; - if (ctx->configAttrib(EGL_BIND_TO_TEXTURE_RGBA, &value) && value) + if (ctx->configAttrib(EGL_BIND_TO_TEXTURE_RGBA) == EGL_TRUE) textureFormat = EGL_TEXTURE_RGBA; - else if (ctx->configAttrib(EGL_BIND_TO_TEXTURE_RGB, &value) && value) + else if (ctx->configAttrib(EGL_BIND_TO_TEXTURE_RGB) == EGL_TRUE) textureFormat = EGL_TEXTURE_RGB; #endif } else { QEglProperties configProps; - qt_egl_set_format(configProps, QInternal::Pbuffer, f); + qt_eglproperties_set_glformat(configProps, f); + configProps.setDeviceType(QInternal::Pbuffer); configProps.setRenderableType(ctx->api()); bool ok = false; #if QGL_RENDER_TEXTURE @@ -116,7 +113,7 @@ bool QGLPixelBufferPrivate::init(const QSize &size, const QGLFormat &f, QGLWidge } // Retrieve the actual format properties. - qt_egl_update_format(*ctx, format); + qt_glformat_from_eglconfig(format, ctx->config()); // Create the attributes needed for the pbuffer. QEglProperties attribs; @@ -141,7 +138,7 @@ bool QGLPixelBufferPrivate::init(const QSize &size, const QGLFormat &f, QGLWidge } #endif if (pbuf == EGL_NO_SURFACE) { - qWarning() << "QGLPixelBufferPrivate::init(): Unable to create EGL pbuffer surface:" << QEglContext::errorString(eglGetError()); + qWarning() << "QGLPixelBufferPrivate::init(): Unable to create EGL pbuffer surface:" << QEgl::errorString(); return false; } @@ -208,11 +205,12 @@ GLuint QGLPixelBuffer::generateDynamicTexture() const bool QGLPixelBuffer::hasOpenGLPbuffers() { // See if we have at least 1 configuration that matches the default format. - EGLDisplay dpy = QEglContext::display(); + EGLDisplay dpy = QEgl::display(); if (dpy == EGL_NO_DISPLAY) return false; QEglProperties configProps; - qt_egl_set_format(configProps, QInternal::Pbuffer, QGLFormat::defaultFormat()); + qt_eglproperties_set_glformat(configProps, QGLFormat::defaultFormat()); + configProps.setDeviceType(QInternal::Pbuffer); configProps.setRenderableType(QEgl::OpenGL); do { EGLConfig cfg = 0; diff --git a/src/opengl/qglpixelbuffer_p.h b/src/opengl/qglpixelbuffer_p.h index c85dc5a..2a1f671 100644 --- a/src/opengl/qglpixelbuffer_p.h +++ b/src/opengl/qglpixelbuffer_p.h @@ -60,7 +60,7 @@ QT_BEGIN_INCLUDE_NAMESPACE #include <private/qgl_p.h> #include <private/qglpaintdevice_p.h> -#if defined(Q_WS_X11) && !defined(QT_OPENGL_ES) +#if defined(Q_WS_X11) && defined(QT_NO_EGL) #include <GL/glx.h> // The below is needed to for compilation on HPUX, due to broken GLX @@ -127,10 +127,8 @@ struct GLXFBConfig { #elif defined(Q_WS_WIN) DECLARE_HANDLE(HPBUFFERARB); -#elif defined(QT_OPENGL_ES_2) -#include <EGL/egl.h> -#elif defined(QT_OPENGL_ES) -#include <GLES/egl.h> +#elif !defined(QT_NO_EGL) +#include <QtGui/private/qegl_p.h> #endif QT_END_INCLUDE_NAMESPACE @@ -174,7 +172,7 @@ public: QPointer<QGLWidget> req_shareWidget; QSize req_size; -#if defined(Q_WS_X11) && !defined(QT_OPENGL_ES) +#if defined(Q_WS_X11) && defined(QT_NO_EGL) GLXPbuffer pbuf; GLXContext ctx; #elif defined(Q_WS_WIN) @@ -195,7 +193,7 @@ public: AGLContext share_ctx; # endif #endif -#if defined(QT_OPENGL_ES) +#ifndef QT_NO_EGL EGLSurface pbuf; QEglContext *ctx; int textureFormat; diff --git a/src/opengl/qglshaderprogram.cpp b/src/opengl/qglshaderprogram.cpp index bbfc2d5..c7689b8 100644 --- a/src/opengl/qglshaderprogram.cpp +++ b/src/opengl/qglshaderprogram.cpp @@ -50,7 +50,7 @@ QT_BEGIN_NAMESPACE -#if !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1) +#if !defined(QT_OPENGL_ES_1) /*! \class QGLShaderProgram @@ -143,6 +143,8 @@ QT_BEGIN_NAMESPACE \value Vertex Vertex shader written in the OpenGL Shading Language (GLSL). \value Fragment Fragment shader written in the OpenGL Shading Language (GLSL). + \value Geometry Geometry shaders written in the OpenGL Shading + Language (GLSL), based on the GL_EXT_geometry_shader4 extension. */ #ifndef GL_FRAGMENT_SHADER @@ -226,6 +228,8 @@ bool QGLShaderPrivate::create() GLuint shader; if (shaderType == QGLShader::Vertex) shader = glCreateShader(GL_VERTEX_SHADER); + else if (shaderType == QGLShader::Geometry) + shader = glCreateShader(GL_GEOMETRY_SHADER_EXT); else shader = glCreateShader(GL_FRAGMENT_SHADER); if (!shader) { @@ -509,6 +513,10 @@ GLuint QGLShader::shaderId() const return d->shaderGuard.id(); } + + + + #undef ctx #define ctx programGuard.context() @@ -521,8 +529,9 @@ public: , linked(false) , inited(false) , removingShaders(false) - , vertexShader(0) - , fragmentShader(0) + , geometryVertexCount(64) + , geometryInputType(0) + , geometryOutputType(0) { } ~QGLShaderProgramPrivate(); @@ -531,11 +540,14 @@ public: bool linked; bool inited; bool removingShaders; + + int geometryVertexCount; + GLenum geometryInputType; + GLenum geometryOutputType; + QString log; QList<QGLShader *> shaders; QList<QGLShader *> anonShaders; - QGLShader *vertexShader; - QGLShader *fragmentShader; bool hasShader(QGLShader::ShaderType type) const; }; @@ -604,6 +616,7 @@ bool QGLShaderProgram::init() context = QGLContext::currentContext(); d->programGuard.setContext(context); } + if (!context) return false; if (qt_resolve_glsl_extensions(const_cast<QGLContext *>(context))) { @@ -831,6 +844,7 @@ bool QGLShaderProgram::link() GLuint program = d->programGuard.id(); if (!program) return false; + GLint value; if (d->shaders.isEmpty()) { // If there are no explicit shaders, then it is possible that the @@ -843,6 +857,22 @@ bool QGLShaderProgram::link() if (d->linked) return true; } + + // Set up the geometry shader parameters + if (glProgramParameteriEXT) { + foreach (QGLShader *shader, d->shaders) { + if (shader->shaderType() & QGLShader::Geometry) { + glProgramParameteriEXT(program, GL_GEOMETRY_INPUT_TYPE_EXT, + d->geometryInputType); + glProgramParameteriEXT(program, GL_GEOMETRY_OUTPUT_TYPE_EXT, + d->geometryOutputType); + glProgramParameteriEXT(program, GL_GEOMETRY_VERTICES_OUT_EXT, + d->geometryVertexCount); + break; + } + } + } + glLinkProgram(program); value = 0; glGetProgramiv(program, GL_LINK_STATUS, &value); @@ -1267,7 +1297,8 @@ void QGLShaderProgram::setAttributeValue(int location, const QColor& value) Q_D(QGLShaderProgram); Q_UNUSED(d); if (location != -1) { - GLfloat values[4] = {value.redF(), value.greenF(), value.blueF(), value.alphaF()}; + GLfloat values[4] = {GLfloat(value.redF()), GLfloat(value.greenF()), + GLfloat(value.blueF()), GLfloat(value.alphaF())}; glVertexAttrib4fv(location, values); } } @@ -1433,6 +1464,38 @@ void QGLShaderProgram::setAttributeArray } /*! + Sets an array of vertex \a values on the attribute at \a location + in this shader program. The \a stride indicates the number of bytes + between vertices. A default \a stride value of zero indicates that + the vertices are densely packed in \a values. + + The \a type indicates the type of elements in the \a values array, + usually \c{GL_FLOAT}, \c{GL_UNSIGNED_BYTE}, etc. The \a tupleSize + indicates the number of components per vertex: 1, 2, 3, or 4. + + The array will become active when enableAttributeArray() is called + on the \a location. Otherwise the value specified with + setAttributeValue() for \a location will be used. + + The setAttributeBuffer() function can be used to set the attribute + array to an offset within a vertex buffer. + + \sa setAttributeValue(), setUniformValue(), enableAttributeArray() + \sa disableAttributeArray(), setAttributeBuffer() + \since 4.7 +*/ +void QGLShaderProgram::setAttributeArray + (int location, GLenum type, const void *values, int tupleSize, int stride) +{ + Q_D(QGLShaderProgram); + Q_UNUSED(d); + if (location != -1) { + glVertexAttribPointer(location, tupleSize, type, GL_TRUE, + stride, values); + } +} + +/*! \overload Sets an array of vertex \a values on the attribute called \a name @@ -1518,6 +1581,92 @@ void QGLShaderProgram::setAttributeArray } /*! + \overload + + Sets an array of vertex \a values on the attribute called \a name + in this shader program. The \a stride indicates the number of bytes + between vertices. A default \a stride value of zero indicates that + the vertices are densely packed in \a values. + + The \a type indicates the type of elements in the \a values array, + usually \c{GL_FLOAT}, \c{GL_UNSIGNED_BYTE}, etc. The \a tupleSize + indicates the number of components per vertex: 1, 2, 3, or 4. + + The array will become active when enableAttributeArray() is called + on the \a name. Otherwise the value specified with + setAttributeValue() for \a name will be used. + + The setAttributeBuffer() function can be used to set the attribute + array to an offset within a vertex buffer. + + \sa setAttributeValue(), setUniformValue(), enableAttributeArray() + \sa disableAttributeArray(), setAttributeBuffer() + \since 4.7 +*/ +void QGLShaderProgram::setAttributeArray + (const char *name, GLenum type, const void *values, int tupleSize, int stride) +{ + setAttributeArray(attributeLocation(name), type, values, tupleSize, stride); +} + +/*! + Sets an array of vertex values on the attribute at \a location in + this shader program, starting at a specific \a offset in the + currently bound vertex buffer. The \a stride indicates the number + of bytes between vertices. A default \a stride value of zero + indicates that the vertices are densely packed in the value array. + + The \a type indicates the type of elements in the vertex value + array, usually \c{GL_FLOAT}, \c{GL_UNSIGNED_BYTE}, etc. The \a + tupleSize indicates the number of components per vertex: 1, 2, 3, + or 4. + + The array will become active when enableAttributeArray() is called + on the \a location. Otherwise the value specified with + setAttributeValue() for \a location will be used. + + \sa setAttributeArray() + \since 4.7 +*/ +void QGLShaderProgram::setAttributeBuffer + (int location, GLenum type, int offset, int tupleSize, int stride) +{ + Q_D(QGLShaderProgram); + Q_UNUSED(d); + if (location != -1) { + glVertexAttribPointer(location, tupleSize, type, GL_TRUE, stride, + reinterpret_cast<const void *>(offset)); + } +} + +/*! + \overload + + Sets an array of vertex values on the attribute called \a name + in this shader program, starting at a specific \a offset in the + currently bound vertex buffer. The \a stride indicates the number + of bytes between vertices. A default \a stride value of zero + indicates that the vertices are densely packed in the value array. + + The \a type indicates the type of elements in the vertex value + array, usually \c{GL_FLOAT}, \c{GL_UNSIGNED_BYTE}, etc. The \a + tupleSize indicates the number of components per vertex: 1, 2, 3, + or 4. + + The array will become active when enableAttributeArray() is called + on the \a name. Otherwise the value specified with + setAttributeValue() for \a name will be used. + + \sa setAttributeArray() + \since 4.7 +*/ +void QGLShaderProgram::setAttributeBuffer + (const char *name, GLenum type, int offset, int tupleSize, int stride) +{ + setAttributeBuffer(attributeLocation(name), type, offset, tupleSize, stride); +} + +/*! Enables the vertex array at \a location in this shader program so that the value set by setAttributeArray() on \a location will be used by the shader program. @@ -1884,7 +2033,8 @@ void QGLShaderProgram::setUniformValue(int location, const QColor& color) Q_D(QGLShaderProgram); Q_UNUSED(d); if (location != -1) { - GLfloat values[4] = {color.redF(), color.greenF(), color.blueF(), color.alphaF()}; + GLfloat values[4] = {GLfloat(color.redF()), GLfloat(color.greenF()), + GLfloat(color.blueF()), GLfloat(color.alphaF())}; glUniform4fv(location, 1, values); } } @@ -1913,7 +2063,7 @@ void QGLShaderProgram::setUniformValue(int location, const QPoint& point) Q_D(QGLShaderProgram); Q_UNUSED(d); if (location != -1) { - GLfloat values[4] = {point.x(), point.y()}; + GLfloat values[4] = {GLfloat(point.x()), GLfloat(point.y())}; glUniform2fv(location, 1, values); } } @@ -1942,7 +2092,7 @@ void QGLShaderProgram::setUniformValue(int location, const QPointF& point) Q_D(QGLShaderProgram); Q_UNUSED(d); if (location != -1) { - GLfloat values[4] = {point.x(), point.y()}; + GLfloat values[4] = {GLfloat(point.x()), GLfloat(point.y())}; glUniform2fv(location, 1, values); } } @@ -1971,7 +2121,7 @@ void QGLShaderProgram::setUniformValue(int location, const QSize& size) Q_D(QGLShaderProgram); Q_UNUSED(d); if (location != -1) { - GLfloat values[4] = {size.width(), size.width()}; + GLfloat values[4] = {GLfloat(size.width()), GLfloat(size.width())}; glUniform2fv(location, 1, values); } } @@ -2000,7 +2150,7 @@ void QGLShaderProgram::setUniformValue(int location, const QSizeF& size) Q_D(QGLShaderProgram); Q_UNUSED(d); if (location != -1) { - GLfloat values[4] = {size.width(), size.height()}; + GLfloat values[4] = {GLfloat(size.width()), GLfloat(size.height())}; glUniform2fv(location, 1, values); } } @@ -2314,6 +2464,42 @@ void QGLShaderProgram::setUniformValue(const char *name, const QMatrix4x4& value \overload Sets the uniform variable at \a location in the current context + to a 2x2 matrix \a value. The matrix elements must be specified + in column-major order. + + \sa setAttributeValue() + \since 4.7 +*/ +void QGLShaderProgram::setUniformValue(int location, const GLfloat value[2][2]) +{ + Q_D(QGLShaderProgram); + Q_UNUSED(d); + if (location != -1) + glUniformMatrix2fv(location, 1, GL_FALSE, value[0]); +} + +/*! + \overload + + Sets the uniform variable at \a location in the current context + to a 3x3 matrix \a value. The matrix elements must be specified + in column-major order. + + \sa setAttributeValue() + \since 4.7 +*/ +void QGLShaderProgram::setUniformValue(int location, const GLfloat value[3][3]) +{ + Q_D(QGLShaderProgram); + Q_UNUSED(d); + if (location != -1) + glUniformMatrix3fv(location, 1, GL_FALSE, value[0]); +} + +/*! + \overload + + Sets the uniform variable at \a location in the current context to a 4x4 matrix \a value. The matrix elements must be specified in column-major order. @@ -2327,6 +2513,37 @@ void QGLShaderProgram::setUniformValue(int location, const GLfloat value[4][4]) glUniformMatrix4fv(location, 1, GL_FALSE, value[0]); } + +/*! + \overload + + Sets the uniform variable called \a name in the current context + to a 2x2 matrix \a value. The matrix elements must be specified + in column-major order. + + \sa setAttributeValue() + \since 4.7 +*/ +void QGLShaderProgram::setUniformValue(const char *name, const GLfloat value[2][2]) +{ + setUniformValue(uniformLocation(name), value); +} + +/*! + \overload + + Sets the uniform variable called \a name in the current context + to a 3x3 matrix \a value. The matrix elements must be specified + in column-major order. + + \sa setAttributeValue() + \since 4.7 +*/ +void QGLShaderProgram::setUniformValue(const char *name, const GLfloat value[3][3]) +{ + setUniformValue(uniformLocation(name), value); +} + /*! \overload @@ -2354,9 +2571,9 @@ void QGLShaderProgram::setUniformValue(int location, const QTransform& value) Q_UNUSED(d); if (location != -1) { GLfloat mat[3][3] = { - {value.m11(), value.m12(), value.m13()}, - {value.m21(), value.m22(), value.m23()}, - {value.m31(), value.m32(), value.m33()} + {GLfloat(value.m11()), GLfloat(value.m12()), GLfloat(value.m13())}, + {GLfloat(value.m21()), GLfloat(value.m22()), GLfloat(value.m23())}, + {GLfloat(value.m31()), GLfloat(value.m32()), GLfloat(value.m33())} }; glUniformMatrix3fv(location, 1, GL_FALSE, mat[0]); } @@ -2869,6 +3086,108 @@ void QGLShaderProgram::setUniformValueArray(const char *name, const QMatrix4x4 * #undef ctx /*! + Returns the hardware limit for how many vertices a geometry shader + can output. + + \since 4.7 + + \sa setGeometryOutputVertexCount() +*/ +int QGLShaderProgram::maxGeometryOutputVertices() const +{ + GLint n; + glGetIntegerv(GL_MAX_GEOMETRY_OUTPUT_VERTICES_EXT, &n); + return n; +} + +/*! + Sets the maximum number of vertices the current geometry shader + program will produce, if active, to \a count. + + \since 4.7 + + This parameter takes effect the next time the program is linked. +*/ +void QGLShaderProgram::setGeometryOutputVertexCount(int count) +{ +#ifndef QT_NO_DEBUG + int max = maxGeometryOutputVertices(); + if (count > max) { + qWarning("QGLShaderProgram::setGeometryOutputVertexCount: count: %d higher than maximum: %d", + count, max); + } +#endif + d_func()->geometryVertexCount = count; +} + + +/*! + Returns the maximum number of vertices the current geometry shader + program will produce, if active. + + \since 4.7 + + This parameter takes effect the ntext time the program is linked. +*/ +int QGLShaderProgram::geometryOutputVertexCount() const +{ + return d_func()->geometryVertexCount; +} + + +/*! + Sets the input type from \a inputType. + + This parameter takes effect the next time the program is linked. +*/ +void QGLShaderProgram::setGeometryInputType(GLenum inputType) +{ + d_func()->geometryInputType = inputType; +} + + +/*! + Returns the geometry shader input type, if active. + + This parameter takes effect the next time the program is linked. + + \since 4.7 + */ + +GLenum QGLShaderProgram::geometryInputType() const +{ + return d_func()->geometryInputType; +} + + +/*! + Sets the output type from the geometry shader, if active, to + \a outputType. + + This parameter takes effect the next time the program is linked. + + \since 4.7 +*/ +void QGLShaderProgram::setGeometryOutputType(GLenum outputType) +{ + d_func()->geometryOutputType = outputType; +} + + +/*! + Returns the geometry shader output type, if active. + + This parameter takes effect the next time the program is linked. + + \since 4.7 + */ +GLenum QGLShaderProgram::geometryOutputType() const +{ + return d_func()->geometryOutputType; +} + + +/*! Returns true if shader programs written in the OpenGL Shading Language (GLSL) are supported on this system; false otherwise. @@ -2900,8 +3219,71 @@ void QGLShaderProgram::shaderDestroyed() removeShader(shader); } + +#undef ctx +#undef context + +/*! + Returns true if shader programs of type \a type are supported on + this system; false otherwise. + + The \a context is used to resolve the GLSL extensions. + If \a context is null, then QGLContext::currentContext() is used. + + \since 4.7 +*/ +bool QGLShader::hasOpenGLShaders(ShaderType type, const QGLContext *context) +{ + if (!context) + context = QGLContext::currentContext(); + if (!context) + return false; + + if ((type & ~(Geometry | Vertex | Fragment)) || type == 0) + return false; + + bool resolved = qt_resolve_glsl_extensions(const_cast<QGLContext *>(context)); + if (!resolved) + return false; + + if ((type & Geometry) && !QByteArray((const char *) glGetString(GL_EXTENSIONS)).contains("GL_EXT_geometry_shader4")) + return false; + + return true; +} + + + #ifdef Q_MAC_COMPAT_GL_FUNCTIONS /*! \internal */ +void QGLShaderProgram::setAttributeArray + (int location, QMacCompatGLenum type, const void *values, int tupleSize, int stride) +{ + setAttributeArray(location, GLenum(type), values, tupleSize, stride); +} + +/*! \internal */ +void QGLShaderProgram::setAttributeArray + (const char *name, QMacCompatGLenum type, const void *values, int tupleSize, int stride) +{ + setAttributeArray(name, GLenum(type), values, tupleSize, stride); +} + +/*! \internal */ +void QGLShaderProgram::setAttributeBuffer + (int location, QMacCompatGLenum type, int offset, int tupleSize, int stride) +{ + setAttributeBuffer(location, GLenum(type), offset, tupleSize, stride); +} + +/*! \internal */ +void QGLShaderProgram::setAttributeBuffer + (const char *name, QMacCompatGLenum type, int offset, int tupleSize, int stride) +{ + setAttributeBuffer(name, GLenum(type), offset, tupleSize, stride); +} + +/*! \internal */ void QGLShaderProgram::setUniformValue(int location, QMacCompatGLint value) { setUniformValue(location, GLint(value)); @@ -2950,6 +3332,6 @@ void QGLShaderProgram::setUniformValueArray(const char *name, const QMacCompatGL } #endif -#endif // !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1) +#endif // !defined(QT_OPENGL_ES_1) QT_END_NAMESPACE diff --git a/src/opengl/qglshaderprogram.h b/src/opengl/qglshaderprogram.h index 24ab986..d612b05 100644 --- a/src/opengl/qglshaderprogram.h +++ b/src/opengl/qglshaderprogram.h @@ -54,7 +54,7 @@ QT_BEGIN_NAMESPACE QT_MODULE(OpenGL) -#if !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1) +#if !defined(QT_OPENGL_ES_1) class QGLShaderProgram; class QGLShaderPrivate; @@ -66,7 +66,8 @@ public: enum ShaderTypeBit { Vertex = 0x0001, - Fragment = 0x0002 + Fragment = 0x0002, + Geometry = 0x0004 }; Q_DECLARE_FLAGS(ShaderType, ShaderTypeBit) @@ -88,6 +89,8 @@ public: GLuint shaderId() const; + static bool hasOpenGLShaders(ShaderType type, const QGLContext *context = 0); + private: friend class QGLShaderProgram; @@ -100,6 +103,14 @@ Q_DECLARE_OPERATORS_FOR_FLAGS(QGLShader::ShaderType) class QGLShaderProgramPrivate; +#ifndef GL_EXT_geometry_shader4 +# define GL_LINES_ADJACENCY_EXT 0xA +# define GL_LINE_STRIP_ADJACENCY_EXT 0xB +# define GL_TRIANGLES_ADJACENCY_EXT 0xC +# define GL_TRIANGLE_STRIP_ADJACENCY_EXT 0xD +#endif + + class Q_OPENGL_EXPORT QGLShaderProgram : public QObject { Q_OBJECT @@ -128,6 +139,17 @@ public: GLuint programId() const; + int maxGeometryOutputVertices() const; + + void setGeometryOutputVertexCount(int count); + int geometryOutputVertexCount() const; + + void setGeometryInputType(GLenum inputType); + GLenum geometryInputType() const; + + void setGeometryOutputType(GLenum outputType); + GLenum geometryOutputType() const; + void bindAttributeLocation(const char *name, int location); void bindAttributeLocation(const QByteArray& name, int location); void bindAttributeLocation(const QString& name, int location); @@ -165,6 +187,8 @@ public: void setAttributeArray (int location, const QVector4D *values, int stride = 0); void setAttributeArray + (int location, GLenum type, const void *values, int tupleSize, int stride = 0); + void setAttributeArray (const char *name, const GLfloat *values, int tupleSize, int stride = 0); void setAttributeArray (const char *name, const QVector2D *values, int stride = 0); @@ -172,6 +196,24 @@ public: (const char *name, const QVector3D *values, int stride = 0); void setAttributeArray (const char *name, const QVector4D *values, int stride = 0); + void setAttributeArray + (const char *name, GLenum type, const void *values, int tupleSize, int stride = 0); + + void setAttributeBuffer + (int location, GLenum type, int offset, int tupleSize, int stride = 0); + void setAttributeBuffer + (const char *name, GLenum type, int offset, int tupleSize, int stride = 0); + +#ifdef Q_MAC_COMPAT_GL_FUNCTIONS + void setAttributeArray + (int location, QMacCompatGLenum type, const void *values, int tupleSize, int stride = 0); + void setAttributeArray + (const char *name, QMacCompatGLenum type, const void *values, int tupleSize, int stride = 0); + void setAttributeBuffer + (int location, QMacCompatGLenum type, int offset, int tupleSize, int stride = 0); + void setAttributeBuffer + (const char *name, QMacCompatGLenum type, int offset, int tupleSize, int stride = 0); +#endif void enableAttributeArray(int location); void enableAttributeArray(const char *name); @@ -216,6 +258,8 @@ public: void setUniformValue(int location, const QMatrix4x2& value); void setUniformValue(int location, const QMatrix4x3& value); void setUniformValue(int location, const QMatrix4x4& value); + void setUniformValue(int location, const GLfloat value[2][2]); + void setUniformValue(int location, const GLfloat value[3][3]); void setUniformValue(int location, const GLfloat value[4][4]); void setUniformValue(int location, const QTransform& value); @@ -242,6 +286,8 @@ public: void setUniformValue(const char *name, const QMatrix4x2& value); void setUniformValue(const char *name, const QMatrix4x3& value); void setUniformValue(const char *name, const QMatrix4x4& value); + void setUniformValue(const char *name, const GLfloat value[2][2]); + void setUniformValue(const char *name, const GLfloat value[3][3]); void setUniformValue(const char *name, const GLfloat value[4][4]); void setUniformValue(const char *name, const QTransform& value); diff --git a/src/opengl/qgraphicsshadereffect.cpp b/src/opengl/qgraphicsshadereffect.cpp index dddc85d..f53ef54 100644 --- a/src/opengl/qgraphicsshadereffect.cpp +++ b/src/opengl/qgraphicsshadereffect.cpp @@ -40,7 +40,7 @@ ****************************************************************************/ #include "qgraphicsshadereffect_p.h" -#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL) +#if !defined(QT_OPENGL_ES_1) #include "qglshaderprogram.h" #include "gl2paintengineex/qglcustomshaderstage_p.h" #define QGL_HAVE_CUSTOM_SHADERS 1 diff --git a/src/opengl/qgraphicssystem_gl.cpp b/src/opengl/qgraphicssystem_gl.cpp index 3a399ae..58cc28a 100644 --- a/src/opengl/qgraphicssystem_gl.cpp +++ b/src/opengl/qgraphicssystem_gl.cpp @@ -40,6 +40,7 @@ ****************************************************************************/ #include "qgraphicssystem_gl_p.h" +#include <QGraphicsView> #include "private/qpixmap_raster_p.h" #include "private/qpixmapdata_gl_p.h" @@ -47,7 +48,7 @@ #include "private/qgl_p.h" #include <private/qwindowsurface_raster_p.h> -#if defined(Q_WS_X11) && defined(QT_OPENGL_ES) +#if defined(Q_WS_X11) && !defined(QT_NO_EGL) #include "private/qpixmapdata_x11gl_p.h" #include "private/qwindowsurface_x11gl_p.h" #endif @@ -58,11 +59,6 @@ extern QGLWidget *qt_gl_getShareWidget(); QPixmapData *QGLGraphicsSystem::createPixmapData(QPixmapData::PixelType type) const { -#if defined(Q_WS_X11) && defined(QT_OPENGL_ES) - if (type == QPixmapData::PixmapType && QX11GLPixmapData::hasX11GLPixmaps()) - return new QX11GLPixmapData(); -#endif - return new QGLPixmapData(type); } @@ -76,9 +72,18 @@ QWindowSurface *QGLGraphicsSystem::createWindowSurface(QWidget *widget) const return new QRasterWindowSurface(widget); #endif -#if defined(Q_WS_X11) && defined(QT_OPENGL_ES) - if (QX11GLPixmapData::hasX11GLPixmaps()) - return new QX11GLWindowSurface(widget); +#if defined(Q_WS_X11) && !defined(QT_NO_EGL) + if (m_useX11GL && QX11GLPixmapData::hasX11GLPixmaps()) { + // If the widget is a QGraphicsView which will be re-drawing the entire + // scene each frame anyway, we should use QGLWindowSurface as this may + // provide proper buffer flipping, which should be faster than QX11GL's + // blitting approach: + QGraphicsView* qgv = qobject_cast<QGraphicsView*>(widget); + if (qgv && qgv->viewportUpdateMode() == QGraphicsView::FullViewportUpdate) + return new QGLWindowSurface(widget); + else + return new QX11GLWindowSurface(widget); + } #endif return new QGLWindowSurface(widget); diff --git a/src/opengl/qgraphicssystem_gl_p.h b/src/opengl/qgraphicssystem_gl_p.h index ff47854..9d2d506 100644 --- a/src/opengl/qgraphicssystem_gl_p.h +++ b/src/opengl/qgraphicssystem_gl_p.h @@ -62,10 +62,12 @@ QT_BEGIN_NAMESPACE class Q_OPENGL_EXPORT QGLGraphicsSystem : public QGraphicsSystem { public: - QGLGraphicsSystem(); + QGLGraphicsSystem(bool useX11GL); QPixmapData *createPixmapData(QPixmapData::PixelType type) const; QWindowSurface *createWindowSurface(QWidget *widget) const; +private: + bool m_useX11GL; }; QT_END_NAMESPACE diff --git a/src/opengl/qpaintengine_opengl.cpp b/src/opengl/qpaintengine_opengl.cpp index fc31548..12c487d 100644 --- a/src/opengl/qpaintengine_opengl.cpp +++ b/src/opengl/qpaintengine_opengl.cpp @@ -60,6 +60,7 @@ #include <private/qglpixelbuffer_p.h> #include <private/qbezier_p.h> #include <qglframebufferobject.h> +#include <private/qstatictext_p.h> #include "private/qtessellator_p.h" @@ -71,10 +72,6 @@ #include "private/qwsmanager_p.h" #endif -#ifdef QT_OPENGL_ES_1_CL -#include "qgl_cl_p.h" -#endif - #define QGL_FUNC_CONTEXT QGLContext *ctx = const_cast<QGLContext *>(device->context()); #include <stdlib.h> @@ -671,6 +668,7 @@ public: , last_created_state(0) , shader_ctx(0) , grad_palette(0) + , tess_points(0) , drawable_texture(0) , ref_cleaner(this) {} @@ -780,7 +778,7 @@ public: void drawOffscreenPath(const QPainterPath &path); void composite(const QRectF &rect, const QPoint &maskOffset = QPoint()); - void composite(GLuint primitive, const q_vertexType *vertexArray, int vertexCount, const QPoint &maskOffset = QPoint()); + void composite(GLuint primitive, const GLfloat *vertexArray, int vertexCount, const QPoint &maskOffset = QPoint()); bool createFragmentPrograms(); void deleteFragmentPrograms(); @@ -1792,7 +1790,7 @@ class QOpenGLTrapezoidToArrayTessellator : public QOpenGLTessellator public: QOpenGLTrapezoidToArrayTessellator() : vertices(0), allocated(0), size(0) {} ~QOpenGLTrapezoidToArrayTessellator() { free(vertices); } - q_vertexType *vertices; + GLfloat *vertices; int allocated; int size; QRectF bounds; @@ -1813,36 +1811,36 @@ void QOpenGLTrapezoidToArrayTessellator::addTrap(const Trapezoid &trap) if (size > allocated - 12) { #endif allocated = qMax(2*allocated, 512); - vertices = (q_vertexType *)realloc(vertices, allocated * sizeof(q_vertexType)); + vertices = (GLfloat *)realloc(vertices, allocated * sizeof(GLfloat)); } QGLTrapezoid t = toGLTrapezoid(trap); #ifndef QT_OPENGL_ES - vertices[size++] = f2vt(t.topLeftX); - vertices[size++] = f2vt(t.top); - vertices[size++] = f2vt(t.topRightX); - vertices[size++] = f2vt(t.top); - vertices[size++] = f2vt(t.bottomRightX); - vertices[size++] = f2vt(t.bottom); - vertices[size++] = f2vt(t.bottomLeftX); - vertices[size++] = f2vt(t.bottom); + vertices[size++] = t.topLeftX; + vertices[size++] = t.top; + vertices[size++] = t.topRightX; + vertices[size++] = t.top; + vertices[size++] = t.bottomRightX; + vertices[size++] = t.bottom; + vertices[size++] = t.bottomLeftX; + vertices[size++] = t.bottom; #else // First triangle - vertices[size++] = f2vt(t.topLeftX); - vertices[size++] = f2vt(t.top); - vertices[size++] = f2vt(t.topRightX); - vertices[size++] = f2vt(t.top); - vertices[size++] = f2vt(t.bottomRightX); - vertices[size++] = f2vt(t.bottom); + vertices[size++] = t.topLeftX; + vertices[size++] = t.top; + vertices[size++] = t.topRightX; + vertices[size++] = t.top; + vertices[size++] = t.bottomRightX; + vertices[size++] = t.bottom; // Second triangle - vertices[size++] = f2vt(t.bottomLeftX); - vertices[size++] = f2vt(t.bottom); - vertices[size++] = f2vt(t.topLeftX); - vertices[size++] = f2vt(t.top); - vertices[size++] = f2vt(t.bottomRightX); - vertices[size++] = f2vt(t.bottom); + vertices[size++] = t.bottomLeftX; + vertices[size++] = t.bottom; + vertices[size++] = t.topLeftX; + vertices[size++] = t.top; + vertices[size++] = t.bottomRightX; + vertices[size++] = t.bottom; #endif } @@ -1869,7 +1867,7 @@ void QOpenGLPaintEnginePrivate::fillPolygon_dev(const QPointF *polygonPoints, in if (use_fragment_programs && !(fast_style && has_fast_composition_mode)) { composite(geometry_mode, tessellator.vertices, tessellator.size / 2); } else { - glVertexPointer(2, q_vertexTypeEnum, 0, tessellator.vertices); + glVertexPointer(2, GL_FLOAT, 0, tessellator.vertices); glEnableClientState(GL_VERTEX_ARRAY); glDrawArrays(geometry_mode, 0, tessellator.size/2); glDisableClientState(GL_VERTEX_ARRAY); @@ -1958,6 +1956,8 @@ void QOpenGLPaintEnginePrivate::pathToVertexArrays(const QPainterPath &path) void QOpenGLPaintEnginePrivate::drawVertexArrays() { + if (tess_points_stops.count() == 0) + return; glEnableClientState(GL_VERTEX_ARRAY); glVertexPointer(2, GL_DOUBLE, 0, tess_points.data()); int previous_stop = 0; @@ -2270,7 +2270,7 @@ void QOpenGLPaintEnginePrivate::updateDepthClip() return; } -#if defined(QT_OPENGL_ES_1) || defined(QT_OPENGL_ES_2) || defined(QT_OPENGL_ES_1_CL) +#if defined(QT_OPENGL_ES_1) || defined(QT_OPENGL_ES_2) glClearDepthf(0.0f); #else glClearDepth(0.0f); @@ -2286,12 +2286,12 @@ void QOpenGLPaintEnginePrivate::updateDepthClip() const QVector<QRect> rects = q->state()->clipEnabled ? q->state()->clipRegion.rects() : q->systemClip().rects(); // rectangle count * 2 (triangles) * vertex count * component count (Z omitted) - QDataBuffer<q_vertexType> clipVertex(rects.size()*2*3*2); + QDataBuffer<GLfloat> clipVertex(rects.size()*2*3*2); for (int i = 0; i < rects.size(); ++i) { - q_vertexType x = i2vt(rects.at(i).left()); - q_vertexType w = i2vt(rects.at(i).width()); - q_vertexType h = i2vt(rects.at(i).height()); - q_vertexType y = i2vt(rects.at(i).top()); + GLfloat x = GLfloat(rects.at(i).left()); + GLfloat w = GLfloat(rects.at(i).width()); + GLfloat h = GLfloat(rects.at(i).height()); + GLfloat y = GLfloat(rects.at(i).top()); // First triangle clipVertex.add(x); @@ -2319,7 +2319,7 @@ void QOpenGLPaintEnginePrivate::updateDepthClip() glLoadIdentity(); glEnableClientState(GL_VERTEX_ARRAY); - glVertexPointer(2, q_vertexTypeEnum, 0, clipVertex.data()); + glVertexPointer(2, GL_FLOAT, 0, clipVertex.data()); glDrawArrays(GL_TRIANGLES, 0, rects.size()*2*3); glDisableClientState(GL_VERTEX_ARRAY); @@ -3111,8 +3111,8 @@ QGLTrapezoidMaskGenerator::QGLTrapezoidMaskGenerator(const QPainterPath &path, c { } -extern void qt_add_rect_to_array(const QRectF &r, q_vertexType *array); -extern void qt_add_texcoords_to_array(qreal x1, qreal y1, qreal x2, qreal y2, q_vertexType *array); +extern void qt_add_rect_to_array(const QRectF &r, GLfloat *array); +extern void qt_add_texcoords_to_array(qreal x1, qreal y1, qreal x2, qreal y2, GLfloat *array); void QGLTrapezoidMaskGenerator::drawMask(const QRect &rect) { @@ -3143,7 +3143,7 @@ void QGLTrapezoidMaskGenerator::drawMask(const QRect &rect) // clear mask glBlendFunc(GL_ZERO, GL_ZERO); // clear - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray); + glVertexPointer(2, GL_FLOAT, 0, vertexArray); glEnableClientState(GL_VERTEX_ARRAY); glDrawArrays(GL_TRIANGLE_FAN, 0, 4); glDisableClientState(GL_VERTEX_ARRAY); @@ -3350,15 +3350,15 @@ void QGLEllipseMaskGenerator::drawMask(const QRect &rect) QTransform gl_to_qt(1, 0, 0, -1, 0, offscreen->drawableSize().height()); QTransform inv_matrix = gl_to_qt * matrix().inverted() * translate; - float m[3][4] = { { inv_matrix.m11(), inv_matrix.m12(), inv_matrix.m13() }, - { inv_matrix.m21(), inv_matrix.m22(), inv_matrix.m23() }, - { inv_matrix.m31(), inv_matrix.m32(), inv_matrix.m33() } }; + float m[3][4] = { { float(inv_matrix.m11()), float(inv_matrix.m12()), float(inv_matrix.m13()) }, + { float(inv_matrix.m21()), float(inv_matrix.m22()), float(inv_matrix.m23()) }, + { float(inv_matrix.m31()), float(inv_matrix.m32()), float(inv_matrix.m33()) } }; QPoint offs(screen_rect.left() - rect.left(), (offscreen->drawableSize().height() - screen_rect.top()) - (offscreen->offscreenSize().height() - rect.top())); // last component needs to be 1.0f to avoid Nvidia bug on linux - float ellipse_offset[4] = { offs.x(), offs.y(), 0.0f, 1.0f }; + float ellipse_offset[4] = { float(offs.x()), float(offs.y()), 0.0f, 1.0f }; GLfloat vertexArray[4 * 2]; qt_add_rect_to_array(rect, vertexArray); @@ -3374,7 +3374,7 @@ void QGLEllipseMaskGenerator::drawMask(const QRect &rect) glProgramLocalParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, maskVariableLocations[VAR_ELLIPSE_OFFSET], ellipse_offset); glEnableClientState(GL_VERTEX_ARRAY); - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray); + glVertexPointer(2, GL_FLOAT, 0, vertexArray); glDrawArrays(GL_TRIANGLE_FAN, 0, 4); glDisableClientState(GL_VERTEX_ARRAY); glDisable(GL_FRAGMENT_PROGRAM_ARB); @@ -3404,7 +3404,7 @@ void QOpenGLPaintEnginePrivate::drawFastRect(const QRectF &r) Q_Q(QOpenGLPaintEngine); DEBUG_ONCE_STR("QOpenGLPaintEngine::drawRects(): drawing fast rect"); - q_vertexType vertexArray[10]; + GLfloat vertexArray[10]; qt_add_rect_to_array(r, vertexArray); if (has_pen) @@ -3425,7 +3425,7 @@ void QOpenGLPaintEnginePrivate::drawFastRect(const QRectF &r) if (fast_style && has_fast_composition_mode) { glEnableClientState(GL_VERTEX_ARRAY); - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray); + glVertexPointer(2, GL_FLOAT, 0, vertexArray); glDrawArrays(GL_TRIANGLE_FAN, 0, 4); glDisableClientState(GL_VERTEX_ARRAY); } else { @@ -3444,7 +3444,7 @@ void QOpenGLPaintEnginePrivate::drawFastRect(const QRectF &r) vertexArray[8] = vertexArray[0]; vertexArray[9] = vertexArray[1]; - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray); + glVertexPointer(2, GL_FLOAT, 0, vertexArray); glEnableClientState(GL_VERTEX_ARRAY); glDrawArrays(GL_LINE_STRIP, 0, 5); glDisableClientState(GL_VERTEX_ARRAY); @@ -3551,7 +3551,7 @@ void QOpenGLPaintEngine::drawRects(const QRectF *rects, int rectCount) } } -static void addQuadAsTriangle(q_vertexType *quad, q_vertexType *triangle) +static void addQuadAsTriangle(GLfloat *quad, GLfloat *triangle) { triangle[0] = quad[0]; triangle[1] = quad[1]; @@ -3612,7 +3612,7 @@ void QOpenGLPaintEngine::drawPoints(const QPointF *points, int pointCount) d->flushDrawQueue(); if (d->has_fast_pen) { - QVarLengthArray<q_vertexType> vertexArray(6 * pointCount); + QVarLengthArray<GLfloat> vertexArray(6 * pointCount); glMatrixMode(GL_MODELVIEW); glPushMatrix(); @@ -3622,25 +3622,22 @@ void QOpenGLPaintEngine::drawPoints(const QPointF *points, int pointCount) for (int i = 0; i < pointCount; ++i) { QPointF mapped = d->matrix.map(points[i]); - qreal xf = qRound(mapped.x()); - qreal yf = qRound(mapped.y()); - - q_vertexType x = f2vt(xf); - q_vertexType y = f2vt(yf); + GLfloat x = GLfloat(qRound(mapped.x())); + GLfloat y = GLfloat(qRound(mapped.y())); vertexArray[j++] = x; - vertexArray[j++] = y - f2vt(0.5); + vertexArray[j++] = y - 0.5f; - vertexArray[j++] = x + f2vt(1.5); - vertexArray[j++] = y + f2vt(1.0); + vertexArray[j++] = x + 1.5f; + vertexArray[j++] = y + 1.0f; vertexArray[j++] = x; - vertexArray[j++] = y + f2vt(1.0); + vertexArray[j++] = y + 1.0f; } glEnableClientState(GL_VERTEX_ARRAY); - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray.constData()); + glVertexPointer(2, GL_FLOAT, 0, vertexArray.constData()); glDrawArrays(GL_TRIANGLES, 0, pointCount*3); glDisableClientState(GL_VERTEX_ARRAY); @@ -3657,7 +3654,7 @@ void QOpenGLPaintEngine::drawPoints(const QPointF *points, int pointCount) } else { Q_ASSERT(sizeof(QPointF) == 8); - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray); + glVertexPointer(2, GL_FLOAT, 0, vertexArray); } glEnableClientState(GL_VERTEX_ARRAY); @@ -3725,47 +3722,47 @@ void QOpenGLPaintEngine::drawLines(const QLineF *lines, int lineCount) } } - q_vertexType endCap = f2vt(d->cpen.capStyle() == Qt::FlatCap ? 0 : 0.5); + GLfloat endCap = d->cpen.capStyle() == Qt::FlatCap ? 0.0f : 0.5f; if (useRects) { - QVarLengthArray<q_vertexType> vertexArray(12 * lineCount); + QVarLengthArray<GLfloat> vertexArray(12 * lineCount); - q_vertexType quad[8]; + GLfloat quad[8]; for (int i = 0; i < lineCount; ++i) { - q_vertexType x1 = f2vt(lines[i].x1()); - q_vertexType x2 = f2vt(lines[i].x2()); - q_vertexType y1 = f2vt(lines[i].y1()); - q_vertexType y2 = f2vt(lines[i].y2()); + GLfloat x1 = lines[i].x1(); + GLfloat x2 = lines[i].x2(); + GLfloat y1 = lines[i].y1(); + GLfloat y2 = lines[i].y2(); if (x1 == x2) { if (y1 > y2) qSwap(y1, y2); - quad[0] = x1 - f2vt(0.5); + quad[0] = x1 - 0.5f; quad[1] = y1 - endCap; - quad[2] = x1 + f2vt(0.5); + quad[2] = x1 + 0.5f; quad[3] = y1 - endCap; - quad[4] = x1 + f2vt(0.5); + quad[4] = x1 + 0.5f; quad[5] = y2 + endCap; - quad[6] = x1 - f2vt(0.5); + quad[6] = x1 - 0.5f; quad[7] = y2 + endCap; } else { if (x1 > x2) qSwap(x1, x2); quad[0] = x1 - endCap; - quad[1] = y1 + f2vt(0.5); + quad[1] = y1 + 0.5f; quad[2] = x1 - endCap; - quad[3] = y1 - f2vt(0.5); + quad[3] = y1 - 0.5f; quad[4] = x2 + endCap; - quad[5] = y1 - f2vt(0.5); + quad[5] = y1 - 0.5f; quad[6] = x2 + endCap; - quad[7] = y1 + f2vt(0.5); + quad[7] = y1 + 0.5f; } addQuadAsTriangle(quad, &vertexArray[12*i]); @@ -3773,26 +3770,26 @@ void QOpenGLPaintEngine::drawLines(const QLineF *lines, int lineCount) glEnableClientState(GL_VERTEX_ARRAY); - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray.constData()); + glVertexPointer(2, GL_FLOAT, 0, vertexArray.constData()); glDrawArrays(GL_TRIANGLES, 0, lineCount*6); glDisableClientState(GL_VERTEX_ARRAY); } else { - QVarLengthArray<q_vertexType> vertexArray(4 * lineCount); + QVarLengthArray<GLfloat> vertexArray(4 * lineCount); for (int i = 0; i < lineCount; ++i) { const QPointF a = lines[i].p1(); - vertexArray[4*i] = f2vt(lines[i].x1()); - vertexArray[4*i+1] = f2vt(lines[i].y1()); - vertexArray[4*i+2] = f2vt(lines[i].x2()); - vertexArray[4*i+3] = f2vt(lines[i].y2()); + vertexArray[4*i] = lines[i].x1(); + vertexArray[4*i+1] = lines[i].y1(); + vertexArray[4*i+2] = lines[i].x2(); + vertexArray[4*i+3] = lines[i].y2(); } glEnableClientState(GL_VERTEX_ARRAY); - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray.constData()); + glVertexPointer(2, GL_FLOAT, 0, vertexArray.constData()); glDrawArrays(GL_LINES, 0, lineCount*2); - glVertexPointer(2, q_vertexTypeEnum, 4*sizeof(q_vertexType), vertexArray.constData() + 2); + glVertexPointer(2, GL_FLOAT, 4*sizeof(GLfloat), vertexArray.constData() + 2); glDrawArrays(GL_POINTS, 0, lineCount); glDisableClientState(GL_VERTEX_ARRAY); @@ -3879,7 +3876,7 @@ void QOpenGLPaintEngine::drawPolygon(const QPointF *points, int pointCount, Poly } else { Q_ASSERT(sizeof(QPointF) == 8); - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray); + glVertexPointer(2, GL_FLOAT, 0, vertexArray); } glEnableClientState(GL_VERTEX_ARRAY); @@ -3898,12 +3895,12 @@ void QOpenGLPaintEngine::drawPolygon(const QPointF *points, int pointCount, Poly if (d->has_pen) { if (d->has_fast_pen && !d->high_quality_antialiasing) { d->setGradientOps(d->cpen.brush(), bounds); - QVarLengthArray<q_vertexType> vertexArray(pointCount*2 + 2); - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray.constData()); + QVarLengthArray<GLfloat> vertexArray(pointCount*2 + 2); + glVertexPointer(2, GL_FLOAT, 0, vertexArray.constData()); int i; for (i=0; i<pointCount; ++i) { - vertexArray[i*2] = f2vt(points[i].x()); - vertexArray[i*2+1] = f2vt(points[i].y()); + vertexArray[i*2] = points[i].x(); + vertexArray[i*2+1] = points[i].y(); } glEnableClientState(GL_VERTEX_ARRAY); @@ -3958,7 +3955,7 @@ void QOpenGLPaintEnginePrivate::strokeLines(const QPainterPath &path) enableClipping(); } -extern bool qt_scaleForTransform(const QTransform &transform, qreal *scale); // qtransform.cpp +Q_GUI_EXPORT bool qt_scaleForTransform(const QTransform &transform, qreal *scale); // qtransform.cpp void QOpenGLPaintEnginePrivate::strokePath(const QPainterPath &path, bool use_cache) { @@ -4079,7 +4076,7 @@ void QOpenGLPaintEnginePrivate::strokePathFastPen(const QPainterPath &path, bool switch (e.type) { case QPainterPath::MoveToElement: if (i != 0) { - glVertexPointer(2, q_vertexTypeEnum, 0, tess_points.data()); + glVertexPointer(2, GL_FLOAT, 0, tess_points.data()); glDrawArrays(GL_LINE_STRIP, 0, tess_points.size()); tess_points.reset(); } @@ -4129,7 +4126,7 @@ void QOpenGLPaintEnginePrivate::strokePathFastPen(const QPainterPath &path, bool break; } // end of switch } - glVertexPointer(2, q_vertexTypeEnum, 0, tess_points.data()); + glVertexPointer(2, GL_FLOAT, 0, tess_points.data()); glDrawArrays(GL_LINE_STRIP, 0, tess_points.size()); glDisableClientState(GL_VERTEX_ARRAY); #endif @@ -4396,8 +4393,8 @@ void QOpenGLPaintEngine::drawTiledPixmap(const QRectF &r, const QPixmap &pm, con glRotatef(180.0, 0.0, 0.0, 1.0); } - q_vertexType vertexArray[4*2]; - q_vertexType texCoordArray[4*2]; + GLfloat vertexArray[4*2]; + GLfloat texCoordArray[4*2]; double offset_x = offset.x() / pm.width(); double offset_y = offset.y() / pm.height(); @@ -4406,8 +4403,8 @@ void QOpenGLPaintEngine::drawTiledPixmap(const QRectF &r, const QPixmap &pm, con qt_add_texcoords_to_array(offset_x, offset_y, tc_w + offset_x, tc_h + offset_y, texCoordArray); - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray); - glTexCoordPointer(2, q_vertexTypeEnum, 0, texCoordArray); + glVertexPointer(2, GL_FLOAT, 0, vertexArray); + glTexCoordPointer(2, GL_FLOAT, 0, texCoordArray); glEnableClientState(GL_VERTEX_ARRAY); glEnableClientState(GL_TEXTURE_COORD_ARRAY); @@ -4488,14 +4485,14 @@ void QOpenGLPaintEngine::drawTextureRect(int tx_width, int tx_height, const QRec y2 = sr.y(); } - q_vertexType vertexArray[4*2]; - q_vertexType texCoordArray[4*2]; + GLfloat vertexArray[4*2]; + GLfloat texCoordArray[4*2]; qt_add_rect_to_array(r, vertexArray); qt_add_texcoords_to_array(x1, y2, x2, y1, texCoordArray); - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray); - glTexCoordPointer(2, q_vertexTypeEnum, 0, texCoordArray); + glVertexPointer(2, GL_FLOAT, 0, vertexArray); + glTexCoordPointer(2, GL_FLOAT, 0, texCoordArray); glEnableClientState(GL_VERTEX_ARRAY); glEnableClientState(GL_TEXTURE_COORD_ARRAY); @@ -4560,7 +4557,7 @@ public: QGLGlyphCache() : QObject(0) { current_cache = 0; } ~QGLGlyphCache(); QGLGlyphCoord *lookup(QFontEngine *, glyph_t); - void cacheGlyphs(QGLContext *, const QTextItemInt &, const QVarLengthArray<glyph_t> &); + void cacheGlyphs(QGLContext *, QFontEngine *, glyph_t *glyphs, int numGlyphs); void cleanCache(); void allocTexture(int width, int height, GLuint texture); @@ -4712,8 +4709,8 @@ static QImage getCurrentTexture(const QColor &color, QGLFontTexture *font_tex) } #endif -void QGLGlyphCache::cacheGlyphs(QGLContext *context, const QTextItemInt &ti, - const QVarLengthArray<glyph_t> &glyphs) +void QGLGlyphCache::cacheGlyphs(QGLContext *context, QFontEngine *fontEngine, + glyph_t *glyphs, int numGlyphs) { QGLContextHash::const_iterator dev_it = qt_context_cache.constFind(context); QGLFontGlyphHash *font_cache = 0; @@ -4749,25 +4746,25 @@ void QGLGlyphCache::cacheGlyphs(QGLContext *context, const QTextItemInt &ti, } Q_ASSERT(font_cache != 0); - QGLFontGlyphHash::const_iterator cache_it = font_cache->constFind(ti.fontEngine); + QGLFontGlyphHash::const_iterator cache_it = font_cache->constFind(fontEngine); QGLGlyphHash *cache = 0; if (cache_it == font_cache->constEnd()) { cache = new QGLGlyphHash; - font_cache->insert(ti.fontEngine, cache); - connect(ti.fontEngine, SIGNAL(destroyed(QObject*)), SLOT(fontEngineDestroyed(QObject*))); + font_cache->insert(fontEngine, cache); + connect(fontEngine, SIGNAL(destroyed(QObject*)), SLOT(fontEngineDestroyed(QObject*))); } else { cache = cache_it.value(); } current_cache = cache; quint64 font_key = (reinterpret_cast<quint64>(context_key ? context_key : context) << 32) - | reinterpret_cast<quint64>(ti.fontEngine); + | reinterpret_cast<quint64>(fontEngine); QGLFontTexHash::const_iterator it = qt_font_textures.constFind(font_key); QGLFontTexture *font_tex; if (it == qt_font_textures.constEnd()) { GLuint font_texture; glGenTextures(1, &font_texture); - GLint tex_height = qt_next_power_of_two(qRound(ti.ascent.toReal() + ti.descent.toReal())+2); + GLint tex_height = qt_next_power_of_two(qRound(fontEngine->ascent().toReal() + fontEngine->descent().toReal())+2); GLint tex_width = qt_next_power_of_two(tex_height*30); // ### GLint max_tex_size; glGetIntegerv(GL_MAX_TEXTURE_SIZE, &max_tex_size); @@ -4789,16 +4786,16 @@ void QGLGlyphCache::cacheGlyphs(QGLContext *context, const QTextItemInt &ti, glBindTexture(GL_TEXTURE_2D, font_tex->texture); } - for (int i=0; i< glyphs.size(); ++i) { + for (int i=0; i< numGlyphs; ++i) { QGLGlyphHash::const_iterator it = cache->constFind(glyphs[i]); if (it == cache->constEnd()) { // render new glyph and put it in the cache - glyph_metrics_t metrics = ti.fontEngine->boundingBox(glyphs[i]); + glyph_metrics_t metrics = fontEngine->boundingBox(glyphs[i]); int glyph_width = qRound(metrics.width.toReal())+2; - int glyph_height = qRound(ti.ascent.toReal() + ti.descent.toReal())+2; + int glyph_height = qRound(fontEngine->ascent().toReal() + fontEngine->descent().toReal())+2; if (font_tex->x_offset + glyph_width + x_margin > font_tex->width) { - int strip_height = qt_next_power_of_two(qRound(ti.ascent.toReal() + ti.descent.toReal())+2); + int strip_height = qt_next_power_of_two(qRound(fontEngine->ascent().toReal() + fontEngine->descent().toReal())+2); font_tex->x_offset = x_margin; font_tex->y_offset += strip_height; if (font_tex->y_offset >= font_tex->height) { @@ -4831,7 +4828,7 @@ void QGLGlyphCache::cacheGlyphs(QGLContext *context, const QTextItemInt &ti, } } - QImage glyph_im(ti.fontEngine->alphaMapForGlyph(glyphs[i])); + QImage glyph_im(fontEngine->alphaMapForGlyph(glyphs[i])); glyph_im = glyph_im.convertToFormat(QImage::Format_Indexed8); glyph_width = glyph_im.width(); Q_ASSERT(glyph_width >= 0); @@ -4911,30 +4908,15 @@ void qgl_cleanup_glyph_cache(QGLContext *ctx) qt_glyph_cache()->cleanupContext(ctx); } -void QOpenGLPaintEngine::drawTextItem(const QPointF &p, const QTextItem &textItem) +void QOpenGLPaintEngine::drawStaticTextItem(QStaticTextItem *textItem) { Q_D(QOpenGLPaintEngine); - const QTextItemInt &ti = static_cast<const QTextItemInt &>(textItem); - - // fall back to drawing a polygon if the scale factor is large, or - // we use a gradient pen - if ((d->matrix.det() > 1) || (d->pen_brush_style >= Qt::LinearGradientPattern - && d->pen_brush_style <= Qt::ConicalGradientPattern)) { - QPaintEngine::drawTextItem(p, textItem); - return; - } - d->flushDrawQueue(); - // add the glyphs used to the glyph texture cache - QVarLengthArray<QFixedPoint> positions; - QVarLengthArray<glyph_t> glyphs; - QTransform matrix = QTransform::fromTranslate(qRound(p.x()), qRound(p.y())); - ti.fontEngine->getGlyphPositions(ti.glyphs, matrix, ti.flags, glyphs, positions); - // make sure the glyphs we want to draw are in the cache - qt_glyph_cache()->cacheGlyphs(d->device->context(), ti, glyphs); + qt_glyph_cache()->cacheGlyphs(d->device->context(), textItem->fontEngine, textItem->glyphs, + textItem->numGlyphs); d->setGradientOps(Qt::SolidPattern, QRectF()); // turns off gradient ops qt_glColor4ubv(d->pen_color); @@ -4948,21 +4930,21 @@ void QOpenGLPaintEngine::drawTextItem(const QPointF &p, const QTextItem &textIte #endif // do the actual drawing - q_vertexType vertexArray[4*2]; - q_vertexType texCoordArray[4*2]; + GLfloat vertexArray[4*2]; + GLfloat texCoordArray[4*2]; - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray); - glTexCoordPointer(2, q_vertexTypeEnum, 0, texCoordArray); + glVertexPointer(2, GL_FLOAT, 0, vertexArray); + glTexCoordPointer(2, GL_FLOAT, 0, texCoordArray); glEnableClientState(GL_VERTEX_ARRAY); glEnableClientState(GL_TEXTURE_COORD_ARRAY); - bool antialias = !(ti.fontEngine->fontDef.styleStrategy & QFont::NoAntialias) - && (d->matrix.type() > QTransform::TxTranslate); + bool antialias = !(textItem->fontEngine->fontDef.styleStrategy & QFont::NoAntialias) + && (d->matrix.type() > QTransform::TxTranslate); glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, antialias ? GL_LINEAR : GL_NEAREST); glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, antialias ? GL_LINEAR : GL_NEAREST); - for (int i=0; i< glyphs.size(); ++i) { - QGLGlyphCoord *g = qt_glyph_cache()->lookup(ti.fontEngine, glyphs[i]); + for (int i=0; i< textItem->numGlyphs; ++i) { + QGLGlyphCoord *g = qt_glyph_cache()->lookup(textItem->fontEngine, textItem->glyphs[i]); // we don't cache glyphs with no width/height if (!g) @@ -4974,8 +4956,8 @@ void QOpenGLPaintEngine::drawTextItem(const QPointF &p, const QTextItem &textIte x2 = x1 + g->width; y2 = y1 + g->height; - QPointF logical_pos((positions[i].x - g->x_offset).toReal(), - (positions[i].y + g->y_offset).toReal()); + QPointF logical_pos((textItem->glyphPositions[i].x - g->x_offset).toReal(), + (textItem->glyphPositions[i].y + g->y_offset).toReal()); qt_add_rect_to_array(QRectF(logical_pos, QSizeF(g->log_width, g->log_height)), vertexArray); qt_add_texcoords_to_array(x1, y1, x2, y2, texCoordArray); @@ -4992,6 +4974,40 @@ void QOpenGLPaintEngine::drawTextItem(const QPointF &p, const QTextItem &textIte // XXX: This may not be needed as this behavior does seem to be caused by driver bug glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); #endif + +} + +void QOpenGLPaintEngine::drawTextItem(const QPointF &p, const QTextItem &textItem) +{ + Q_D(QOpenGLPaintEngine); + + const QTextItemInt &ti = static_cast<const QTextItemInt &>(textItem); + + // fall back to drawing a polygon if the scale factor is large, or + // we use a gradient pen + if ((d->matrix.det() > 1) || (d->pen_brush_style >= Qt::LinearGradientPattern + && d->pen_brush_style <= Qt::ConicalGradientPattern)) { + QPaintEngine::drawTextItem(p, textItem); + return; + } + + // add the glyphs used to the glyph texture cache + QVarLengthArray<QFixedPoint> positions; + QVarLengthArray<glyph_t> glyphs; + QTransform matrix = QTransform::fromTranslate(qRound(p.x()), qRound(p.y())); + ti.fontEngine->getGlyphPositions(ti.glyphs, matrix, ti.flags, glyphs, positions); + + { + QStaticTextItem staticTextItem; + staticTextItem.chars = const_cast<QChar *>(ti.chars); + staticTextItem.fontEngine = ti.fontEngine; + staticTextItem.glyphs = glyphs.data(); + staticTextItem.numChars = ti.num_chars; + staticTextItem.numGlyphs = glyphs.size(); + staticTextItem.glyphPositions = positions.data(); + drawStaticTextItem(&staticTextItem); + } + } @@ -5165,7 +5181,7 @@ void QOpenGLPaintEnginePrivate::composite(const QRectF &rect, const QPoint &mask Q_UNUSED(rect); Q_UNUSED(maskOffset); #else - q_vertexType vertexArray[8]; + GLfloat vertexArray[8]; qt_add_rect_to_array(rect, vertexArray); composite(GL_TRIANGLE_FAN, vertexArray, 4, maskOffset); @@ -5173,7 +5189,7 @@ void QOpenGLPaintEnginePrivate::composite(const QRectF &rect, const QPoint &mask } -void QOpenGLPaintEnginePrivate::composite(GLuint primitive, const q_vertexType *vertexArray, int vertexCount, const QPoint &maskOffset) +void QOpenGLPaintEnginePrivate::composite(GLuint primitive, const GLfloat *vertexArray, int vertexCount, const QPoint &maskOffset) { #ifdef QT_OPENGL_ES Q_UNUSED(primitive); @@ -5196,8 +5212,8 @@ void QOpenGLPaintEnginePrivate::composite(GLuint primitive, const q_vertexType * qreal minX = 1e9, minY = 1e9, maxX = -1e9, maxY = -1e9; for (int i = 0; i < vertexCount; ++i) { - qreal x = vt2f(vertexArray[2 * i]); - qreal y = vt2f(vertexArray[2 * i + 1]); + qreal x = vertexArray[2 * i]; + qreal y = vertexArray[2 * i + 1]; qreal tx, ty; matrix.map(x, y, &tx, &ty); @@ -5256,7 +5272,7 @@ void QOpenGLPaintEnginePrivate::composite(GLuint primitive, const q_vertexType * } glEnableClientState(GL_VERTEX_ARRAY); - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray); + glVertexPointer(2, GL_FLOAT, 0, vertexArray); glEnable(GL_FRAGMENT_PROGRAM_ARB); GLuint program = qt_gl_program_cache()->getProgram(device->context(), fragment_brush, diff --git a/src/opengl/qpaintengine_opengl_p.h b/src/opengl/qpaintengine_opengl_p.h index de0086a..55f7792 100644 --- a/src/opengl/qpaintengine_opengl_p.h +++ b/src/opengl/qpaintengine_opengl_p.h @@ -133,6 +133,7 @@ public: void drawImage(const QRectF &r, const QImage &image, const QRectF &sr, Qt::ImageConversionFlags conversionFlags); void drawTextItem(const QPointF &p, const QTextItem &ti); + void drawStaticTextItem(QStaticTextItem *staticTextItem); void drawEllipse(const QRectF &rect); diff --git a/src/opengl/qpixmapdata_gl_p.h b/src/opengl/qpixmapdata_gl_p.h index c239bcb..736a28e 100644 --- a/src/opengl/qpixmapdata_gl_p.h +++ b/src/opengl/qpixmapdata_gl_p.h @@ -96,7 +96,7 @@ private: }; -class QGLPixmapData : public QPixmapData +class Q_OPENGL_EXPORT QGLPixmapData : public QPixmapData { public: QGLPixmapData(PixelType type); diff --git a/src/opengl/qpixmapdata_x11gl_egl.cpp b/src/opengl/qpixmapdata_x11gl_egl.cpp index 229f75a..2c11a0b 100644 --- a/src/opengl/qpixmapdata_x11gl_egl.cpp +++ b/src/opengl/qpixmapdata_x11gl_egl.cpp @@ -41,149 +41,194 @@ #include <QDebug> -#include <private/qgl_p.h> -#include <private/qegl_p.h> -#include <private/qeglproperties_p.h> +#include <QtGui/private/qt_x11_p.h> +#include <QtGui/private/qegl_p.h> +#include <QtGui/private/qeglproperties_p.h> +#include <QtGui/private/qeglcontext_p.h> -#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL) -#include <private/qpaintengineex_opengl2_p.h> +#if !defined(QT_OPENGL_ES_1) +#include <QtOpenGL/private/qpaintengineex_opengl2_p.h> #endif #ifndef QT_OPENGL_ES_2 -#include <private/qpaintengine_opengl_p.h> +#include <QtOpenGL/private/qpaintengine_opengl_p.h> #endif +#include <QtOpenGL/private/qgl_p.h> +#include <QtOpenGL/private/qgl_egl_p.h> + #include "qpixmapdata_x11gl_p.h" QT_BEGIN_NAMESPACE -extern EGLConfig qt_chooseEGLConfigForPixmap(bool hasAlpha, bool readOnly); // in qgl_x11egl.cpp -extern bool qt_createEGLSurfaceForPixmap(QPixmapData* pmd, bool readOnly); // in qgl_x11egl.cpp - -// On 16bpp systems, RGB & ARGB pixmaps are different bit-depths and therefore need -// different contexts: -static EGLContext qPixmapARGBSharedEglContext = EGL_NO_CONTEXT; -static EGLContext qPixmapRGBSharedEglContext = EGL_NO_CONTEXT; -bool QX11GLPixmapData::hasX11GLPixmaps() +class QX11GLSharedContexts { - static bool checkedForX11Pixmaps = false; - static bool haveX11Pixmaps = false; +public: + QX11GLSharedContexts() + : rgbContext(0) + , argbContext(0) + , sharedQGLContext(0) + , sharePixmap(0) + { + EGLint rgbConfigId; + EGLint argbConfigId; + + do { + EGLConfig rgbConfig = QEgl::defaultConfig(QInternal::Pixmap, QEgl::OpenGL, QEgl::Renderable); + EGLConfig argbConfig = QEgl::defaultConfig(QInternal::Pixmap, QEgl::OpenGL, + QEgl::Renderable | QEgl::Translucent); + + eglGetConfigAttrib(QEgl::display(), rgbConfig, EGL_CONFIG_ID, &rgbConfigId); + eglGetConfigAttrib(QEgl::display(), argbConfig, EGL_CONFIG_ID, &argbConfigId); + + rgbContext = new QEglContext; + rgbContext->setConfig(rgbConfig); + rgbContext->createContext(); + + if (!rgbContext->isValid()) + break; - if (checkedForX11Pixmaps) - return haveX11Pixmaps; + // If the RGB & ARGB configs are the same, use the same egl context for both: + if (rgbConfig == argbConfig) + argbContext = rgbContext; + + // Otherwise, create a seperate context to be used for ARGB pixmaps: + if (!argbContext) { + argbContext = new QEglContext; + argbContext->setConfig(argbConfig); + bool success = argbContext->createContext(rgbContext); + if (!success) { + qWarning("QX11GLPixmapData - RGB & ARGB contexts aren't shared"); + success = argbContext->createContext(); + if (!success) + argbContext = rgbContext; // Might work, worth a shot at least. + } + } - checkedForX11Pixmaps = true; + if (!argbContext->isValid()) + break; - QX11PixmapData *argbPixmapData = 0; - QX11PixmapData *rgbPixmapData = 0; - do { - if (qgetenv("QT_USE_X11GL_PIXMAPS").isEmpty()) - break; + // Create the pixmap which will be used to create the egl surface for the share QGLContext + QX11PixmapData *rgbPixmapData = new QX11PixmapData(QPixmapData::PixmapType); + rgbPixmapData->resize(8, 8); + rgbPixmapData->fill(Qt::red); + sharePixmap = new QPixmap(rgbPixmapData); + EGLSurface sharePixmapSurface = QEgl::createSurface(sharePixmap, rgbConfig); + rgbPixmapData->gl_surface = (void*)sharePixmapSurface; + + // Create the actual QGLContext which will be used for sharing + sharedQGLContext = new QGLContext(QX11GLPixmapData::glFormat()); + sharedQGLContext->d_func()->eglContext = rgbContext; + sharedQGLContext->d_func()->eglSurface = sharePixmapSurface; + sharedQGLContext->d_func()->valid = true; + qt_glformat_from_eglconfig(sharedQGLContext->d_func()->glFormat, rgbConfig); + + + valid = rgbContext->makeCurrent(sharePixmapSurface); + + // If the ARGB & RGB configs are different, check ARGB works too: + if (argbConfig != rgbConfig) { + QX11PixmapData *argbPixmapData = new QX11PixmapData(QPixmapData::PixmapType); + argbPixmapData->resize(8, 8); + argbPixmapData->fill(Qt::transparent); // Force ARGB + QPixmap argbPixmap(argbPixmapData); // destroys pixmap data when goes out of scope + EGLSurface argbPixmapSurface = QEgl::createSurface(&argbPixmap, argbConfig); + valid = argbContext->makeCurrent(argbPixmapSurface); + argbContext->doneCurrent(); + eglDestroySurface(QEgl::display(), argbPixmapSurface); + argbPixmapData->gl_surface = 0; + } - // Check we actually have EGL configs which support pixmaps - EGLConfig argbConfig = qt_chooseEGLConfigForPixmap(true, false); - EGLConfig rgbConfig = qt_chooseEGLConfigForPixmap(false, false); + if (!valid) { + qWarning() << "Unable to make pixmap surface current:" << QEgl::errorString(); + break; + } - if (argbConfig == 0 || rgbConfig == 0) - break; + // The pixmap surface destruction hooks are installed by QGLTextureCache, so we + // must make sure this is instanciated: + QGLTextureCache::instance(); + } while(0); - // Create the shared contexts: - eglBindAPI(EGL_OPENGL_ES_API); - EGLint contextAttribs[] = { -#if defined(QT_OPENGL_ES_2) - EGL_CONTEXT_CLIENT_VERSION, 2, -#endif - EGL_NONE - }; - qPixmapARGBSharedEglContext = eglCreateContext(QEglContext::display(), - argbConfig, 0, contextAttribs); - - if (argbConfig == rgbConfig) { - // If the configs are the same, we can re-use the same context. - qPixmapRGBSharedEglContext = qPixmapARGBSharedEglContext; - } else { - qPixmapRGBSharedEglContext = eglCreateContext(QEglContext::display(), - rgbConfig, 0, contextAttribs); - } + if (!valid) + cleanup(); + else + qDebug("Using QX11GLPixmapData with EGL config %d for ARGB and config %d for RGB", argbConfigId, rgbConfigId); - argbPixmapData = new QX11PixmapData(QPixmapData::PixmapType); - argbPixmapData->resize(100, 100); - argbPixmapData->fill(Qt::transparent); // Force ARGB - - if (!qt_createEGLSurfaceForPixmap(argbPixmapData, false)) - break; - - haveX11Pixmaps = eglMakeCurrent(QEglContext::display(), - (EGLSurface)argbPixmapData->gl_surface, - (EGLSurface)argbPixmapData->gl_surface, - qPixmapARGBSharedEglContext); - if (!haveX11Pixmaps) { - EGLint err = eglGetError(); - qWarning() << "Unable to make pixmap config current:" << err << QEglContext::errorString(err); - break; - } + } - // If the ARGB & RGB configs are the same, we don't need to check RGB too - if (haveX11Pixmaps && (argbConfig != rgbConfig)) { - rgbPixmapData = new QX11PixmapData(QPixmapData::PixmapType); - rgbPixmapData->resize(100, 100); - rgbPixmapData->fill(Qt::red); + ~QX11GLSharedContexts() { + cleanup(); + } - // Try to actually create an EGL pixmap surface - if (!qt_createEGLSurfaceForPixmap(rgbPixmapData, false)) - break; + void cleanup() { + if (sharedQGLContext) { + delete sharedQGLContext; + sharedQGLContext = 0; + } + if (argbContext && argbContext != rgbContext) + delete argbContext; + argbContext = 0; - haveX11Pixmaps = eglMakeCurrent(QEglContext::display(), - (EGLSurface)rgbPixmapData->gl_surface, - (EGLSurface)rgbPixmapData->gl_surface, - qPixmapRGBSharedEglContext); - if (!haveX11Pixmaps) { - EGLint err = eglGetError(); - qWarning() << "Unable to make pixmap config current:" << err << QEglContext::errorString(err); - break; - } + if (rgbContext) { + delete rgbContext; + rgbContext = 0; } - } while (0); - if (qPixmapARGBSharedEglContext || qPixmapRGBSharedEglContext) { - eglMakeCurrent(QEglContext::display(), - EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); + // Deleting the QPixmap will fire the pixmap destruction cleanup hooks which in turn + // will destroy the egl surface: + if (sharePixmap) { + delete sharePixmap; + sharePixmap = 0; + } } - if (argbPixmapData) { - if (argbPixmapData->gl_surface) - QGLContextPrivate::destroyGlSurfaceForPixmap(argbPixmapData); - delete argbPixmapData; - argbPixmapData = 0; - } - if (rgbPixmapData) { - if (rgbPixmapData->gl_surface) - QGLContextPrivate::destroyGlSurfaceForPixmap(rgbPixmapData); - delete rgbPixmapData; - rgbPixmapData = 0; - } + bool isValid() { return valid;} - if (!haveX11Pixmaps) { - // Clean up the context(s) if we can't use X11GL pixmaps - if (qPixmapARGBSharedEglContext != EGL_NO_CONTEXT) - eglDestroyContext(QEglContext::display(), qPixmapARGBSharedEglContext); + // On 16bpp systems, RGB & ARGB pixmaps are different bit-depths and therefore need + // different contexts: + QEglContext *rgbContext; + QEglContext *argbContext; - if (qPixmapRGBSharedEglContext != qPixmapARGBSharedEglContext && - qPixmapRGBSharedEglContext != EGL_NO_CONTEXT) - { - eglDestroyContext(QEglContext::display(), qPixmapRGBSharedEglContext); - } - qPixmapRGBSharedEglContext = EGL_NO_CONTEXT; - qPixmapARGBSharedEglContext = EGL_NO_CONTEXT; - } + // The share context wraps the rgbContext and is used as the master of the context share + // group. As all other contexts will have the same egl context (or a shared one if rgb != argb) + // all QGLContexts will actually be sharing and can be in the same context group. + QGLContext *sharedQGLContext; +private: + QPixmap *sharePixmap; + bool valid; +}; + +static void qt_cleanup_x11gl_share_contexts(); + +Q_GLOBAL_STATIC_WITH_INITIALIZER(QX11GLSharedContexts, qt_x11gl_share_contexts, + { + qAddPostRoutine(qt_cleanup_x11gl_share_contexts); + }) + +static void qt_cleanup_x11gl_share_contexts() +{ + qt_x11gl_share_contexts()->cleanup(); +} - if (haveX11Pixmaps) - qDebug("QX11GLPixmapData is supported"); - else - qDebug("QX11GLPixmapData is *NOT* being used"); - return haveX11Pixmaps; +QX11GLSharedContexts* QX11GLPixmapData::sharedContexts() +{ + return qt_x11gl_share_contexts(); +} + +bool QX11GLPixmapData::hasX11GLPixmaps() +{ + static bool checkedForX11GLPixmaps = false; + static bool haveX11GLPixmaps = false; + + if (checkedForX11GLPixmaps) + return haveX11GLPixmaps; + + haveX11GLPixmaps = qt_x11gl_share_contexts()->isValid(); + checkedForX11GLPixmaps = true; + + return haveX11GLPixmaps; } QX11GLPixmapData::QX11GLPixmapData() @@ -194,9 +239,65 @@ QX11GLPixmapData::QX11GLPixmapData() QX11GLPixmapData::~QX11GLPixmapData() { + if (ctx) + delete ctx; } -#if !defined(QT_OPENGL_ES_1) && !defined(QT_OPENGL_ES_1_CL) + +void QX11GLPixmapData::fill(const QColor &color) +{ + if (ctx) { + ctx->makeCurrent(); + glFinish(); + eglWaitClient(); + } + + QX11PixmapData::fill(color); + XSync(X11->display, False); + + if (ctx) { + ctx->makeCurrent(); + eglWaitNative(EGL_CORE_NATIVE_ENGINE); + } +} + +void QX11GLPixmapData::copy(const QPixmapData *data, const QRect &rect) +{ + if (ctx) { + ctx->makeCurrent(); + glFinish(); + eglWaitClient(); + } + + QX11PixmapData::copy(data, rect); + XSync(X11->display, False); + + if (ctx) { + ctx->makeCurrent(); + eglWaitNative(EGL_CORE_NATIVE_ENGINE); + } +} + +bool QX11GLPixmapData::scroll(int dx, int dy, const QRect &rect) +{ + if (ctx) { + ctx->makeCurrent(); + glFinish(); + eglWaitClient(); + } + + bool success = QX11PixmapData::scroll(dx, dy, rect); + XSync(X11->display, False); + + if (ctx) { + ctx->makeCurrent(); + eglWaitNative(EGL_CORE_NATIVE_ENGINE); + } + + return success; +} + +#if !defined(QT_OPENGL_ES_1) Q_GLOBAL_STATIC(QGL2PaintEngineEx, qt_gl_pixmap_2_engine) #endif @@ -210,16 +311,23 @@ QPaintEngine* QX11GLPixmapData::paintEngine() const // We need to create the context before beginPaint - do it here: if (!ctx) { ctx = new QGLContext(glFormat()); - if (ctx->d_func()->eglContext == 0) - ctx->d_func()->eglContext = new QEglContext(); - ctx->d_func()->eglContext->setApi(QEgl::OpenGL); - ctx->d_func()->eglContext->setContext(hasAlphaChannel() ? qPixmapARGBSharedEglContext - : qPixmapRGBSharedEglContext); + Q_ASSERT(ctx->d_func()->eglContext == 0); + ctx->d_func()->eglContext = hasAlphaChannel() ? sharedContexts()->argbContext : sharedContexts()->rgbContext; + + // While we use a seperate QGLContext for each pixmap, the underlying QEglContext is + // the same. So we must use a "fake" QGLContext and fool the texture cache into thinking + // each pixmap's QGLContext is sharing with this central one. The only place this is + // going to fail is where we the underlying EGL RGB and ARGB contexts aren't sharing. + ctx->d_func()->sharing = true; + QGLContextGroup::addShare(ctx, sharedContexts()->sharedQGLContext); + + // Update the glFormat for the QGLContext: + qt_glformat_from_eglconfig(ctx->d_func()->glFormat, ctx->d_func()->eglContext->config()); } QPaintEngine* engine; -#if defined(QT_OPENGL_ES_1) || defined(QT_OPENGL_ES_1_CL) +#if defined(QT_OPENGL_ES_1) engine = qt_gl_pixmap_engine(); #elif defined(QT_OPENGL_ES_2) engine = qt_gl_pixmap_2_engine(); @@ -236,7 +344,7 @@ QPaintEngine* QX11GLPixmapData::paintEngine() const if (engine->isActive()) { qWarning("Pixmap paint engine already active"); -#if defined(QT_OPENGL_ES_1) || defined(QT_OPENGL_ES_1_CL) +#if defined(QT_OPENGL_ES_1) engine = new QOpenGLPaintEngine; #elif defined(QT_OPENGL_ES_2) engine = new QGL2PaintEngineEx; @@ -257,20 +365,25 @@ QPaintEngine* QX11GLPixmapData::paintEngine() const void QX11GLPixmapData::beginPaint() { // qDebug("QX11GLPixmapData::beginPaint()"); + // TODO: Check to see if the surface is renderable if ((EGLSurface)gl_surface == EGL_NO_SURFACE) { - qt_createEGLSurfaceForPixmap(this, false); - ctx->d_func()->eglSurface = (EGLSurface)gl_surface; - ctx->d_func()->valid = true; // ;-) + QPixmap tmpPixmap(this); + EGLConfig cfg = ctx->d_func()->eglContext->config(); + Q_ASSERT(cfg != QEGL_NO_CONFIG); + +// qDebug("QX11GLPixmapData - using EGL Config ID %d", ctx->d_func()->eglContext->configAttrib(EGL_CONFIG_ID)); + EGLSurface surface = QEgl::createSurface(&tmpPixmap, cfg); + if (surface == EGL_NO_SURFACE) { + qWarning() << "Error creating EGL surface for pixmap:" << QEgl::errorString(); + return; + } + gl_surface = (void*)surface; + ctx->d_func()->eglSurface = surface; + ctx->d_func()->valid = true; } QGLPaintDevice::beginPaint(); } -void QX11GLPixmapData::endPaint() -{ - glFinish(); - QGLPaintDevice::endPaint(); -} - QGLContext* QX11GLPixmapData::context() const { return ctx; diff --git a/src/opengl/qpixmapdata_x11gl_p.h b/src/opengl/qpixmapdata_x11gl_p.h index c9f4f56..2d1336b 100644 --- a/src/opengl/qpixmapdata_x11gl_p.h +++ b/src/opengl/qpixmapdata_x11gl_p.h @@ -59,23 +59,35 @@ #include <qgl.h> +#ifndef QT_NO_EGL +#include <QtGui/private/qeglcontext_p.h> +#endif + QT_BEGIN_NAMESPACE +class QX11GLSharedContexts; + class QX11GLPixmapData : public QX11PixmapData, public QGLPaintDevice { public: QX11GLPixmapData(); virtual ~QX11GLPixmapData(); + // Re-implemented from QX11PixmapData: + void fill(const QColor &color); + void copy(const QPixmapData *data, const QRect &rect); + bool scroll(int dx, int dy, const QRect &rect); + // Re-implemented from QGLPaintDevice QPaintEngine* paintEngine() const; // Also re-implements QX11PixmapData::paintEngine void beginPaint(); - void endPaint(); QGLContext* context() const; QSize size() const; static bool hasX11GLPixmaps(); static QGLFormat glFormat(); + static QX11GLSharedContexts* sharedContexts(); + private: mutable QGLContext* ctx; }; diff --git a/src/opengl/qwindowsurface_gl.cpp b/src/opengl/qwindowsurface_gl.cpp index 7a565e6..e9da452 100644 --- a/src/opengl/qwindowsurface_gl.cpp +++ b/src/opengl/qwindowsurface_gl.cpp @@ -82,12 +82,8 @@ #define GLX_SAMPLES_ARB 100001 #endif -#ifdef QT_OPENGL_ES_1_CL -#include "qgl_cl_p.h" -#endif - -#ifdef QT_OPENGL_ES -#include <private/qegl_p.h> +#ifndef QT_NO_EGL +#include <private/qeglcontext_p.h> #endif QT_BEGIN_NAMESPACE @@ -98,8 +94,8 @@ QT_BEGIN_NAMESPACE #ifdef Q_WS_WIN extern Q_GUI_EXPORT bool qt_win_owndc_required; #endif -QGLGraphicsSystem::QGLGraphicsSystem() - : QGraphicsSystem() +QGLGraphicsSystem::QGLGraphicsSystem(bool useX11GL) + : QGraphicsSystem(), m_useX11GL(useX11GL) { #if defined(Q_WS_X11) && !defined(QT_OPENGL_ES) // only override the system defaults if the user hasn't already @@ -357,16 +353,23 @@ void QGLWindowSurface::hijackWindow(QWidget *widget) QGLContext *ctx = new QGLContext(surfaceFormat, widget); ctx->create(qt_gl_share_widget()->context()); -#if defined(Q_WS_X11) && defined(QT_OPENGL_ES) - // Create the EGL surface to draw into. QGLContext::chooseContext() - // does not do this for X11/EGL, but does do it for other platforms. - // This probably belongs in qgl_x11egl.cpp. - QGLContextPrivate *ctxpriv = ctx->d_func(); - ctxpriv->eglSurface = ctxpriv->eglContext->createSurface(widget); - if (ctxpriv->eglSurface == EGL_NO_SURFACE) { - qWarning() << "hijackWindow() could not create EGL surface"; +#ifndef QT_NO_EGL + static bool checkedForNOKSwapRegion = false; + static bool haveNOKSwapRegion = false; + + if (!checkedForNOKSwapRegion) { + haveNOKSwapRegion = QEgl::hasExtension("EGL_NOK_swap_region2"); + checkedForNOKSwapRegion = true; + + if (haveNOKSwapRegion) + qDebug() << "Found EGL_NOK_swap_region2 extension. Using partial updates."; } - qDebug("QGLWindowSurface - using EGLConfig %d", reinterpret_cast<int>(ctxpriv->eglContext->config())); + + if (ctx->d_func()->eglContext->configAttrib(EGL_SWAP_BEHAVIOR) != EGL_BUFFER_PRESERVED && + ! haveNOKSwapRegion) + setPartialUpdateSupport(false); // Force full-screen updates + else + setPartialUpdateSupport(true); #endif widgetPrivate->extraData()->glContext = ctx; @@ -491,8 +494,14 @@ void QGLWindowSurface::flush(QWidget *widget, const QRegion &rgn, const QPoint & } } #endif + if (d_ptr->paintedRegion.boundingRect() != geometry()) { + // Emits warning if not supported. Should never happen unless + // setPartialUpdateSupport(true) has been called. + context()->d_func()->swapRegion(&d_ptr->paintedRegion); + } else + context()->swapBuffers(); + d_ptr->paintedRegion = QRegion(); - context()->swapBuffers(); } else { glFlush(); } @@ -838,22 +847,22 @@ static void drawTexture(const QRectF &rect, GLuint tex_id, const QSize &texSize, src.setBottom(src.bottom() / height); } - const q_vertexType tx1 = f2vt(src.left()); - const q_vertexType tx2 = f2vt(src.right()); - const q_vertexType ty1 = f2vt(src.top()); - const q_vertexType ty2 = f2vt(src.bottom()); + const GLfloat tx1 = src.left(); + const GLfloat tx2 = src.right(); + const GLfloat ty1 = src.top(); + const GLfloat ty2 = src.bottom(); - q_vertexType texCoordArray[4*2] = { + GLfloat texCoordArray[4*2] = { tx1, ty2, tx2, ty2, tx2, ty1, tx1, ty1 }; - q_vertexType vertexArray[4*2]; - extern void qt_add_rect_to_array(const QRectF &r, q_vertexType *array); // qpaintengine_opengl.cpp + GLfloat vertexArray[4*2]; + extern void qt_add_rect_to_array(const QRectF &r, GLfloat *array); // qpaintengine_opengl.cpp qt_add_rect_to_array(rect, vertexArray); #if !defined(QT_OPENGL_ES_2) - glVertexPointer(2, q_vertexTypeEnum, 0, vertexArray); - glTexCoordPointer(2, q_vertexTypeEnum, 0, texCoordArray); + glVertexPointer(2, GL_FLOAT, 0, vertexArray); + glTexCoordPointer(2, GL_FLOAT, 0, texCoordArray); glBindTexture(target, tex_id); glEnable(target); diff --git a/src/opengl/qwindowsurface_gl_p.h b/src/opengl/qwindowsurface_gl_p.h index 8ea714c..5e670fe 100644 --- a/src/opengl/qwindowsurface_gl_p.h +++ b/src/opengl/qwindowsurface_gl_p.h @@ -66,6 +66,8 @@ class QRegion; class QWidget; struct QGLWindowSurfacePrivate; +Q_OPENGL_EXPORT QGLWidget* qt_gl_share_widget(); + class QGLWindowSurfaceGLPaintDevice : public QGLPaintDevice { public: @@ -77,7 +79,7 @@ public: QGLWindowSurfacePrivate* d; }; -class QGLWindowSurface : public QObject, public QWindowSurface // , public QPaintDevice +class Q_OPENGL_EXPORT QGLWindowSurface : public QObject, public QWindowSurface // , public QPaintDevice { Q_OBJECT public: diff --git a/src/opengl/qwindowsurface_x11gl.cpp b/src/opengl/qwindowsurface_x11gl.cpp index 27b91ba..3de6cae 100644 --- a/src/opengl/qwindowsurface_x11gl.cpp +++ b/src/opengl/qwindowsurface_x11gl.cpp @@ -51,14 +51,16 @@ QT_BEGIN_NAMESPACE QX11GLWindowSurface::QX11GLWindowSurface(QWidget* window) - : QWindowSurface(window), m_GC(0), m_window(window) + : QWindowSurface(window), m_windowGC(0), m_pixmapGC(0), m_window(window) { } QX11GLWindowSurface::~QX11GLWindowSurface() { - if (m_GC) - XFree(m_GC); + if (m_windowGC) + XFree(m_windowGC); + if (m_pixmapGC) + XFree(m_pixmapGC); } QPaintDevice *QX11GLWindowSurface::paintDevice() @@ -70,78 +72,142 @@ extern void *qt_getClipRects(const QRegion &r, int &num); // in qpaintengine_x11 void QX11GLWindowSurface::flush(QWidget *widget, const QRegion &widgetRegion, const QPoint &offset) { -// qDebug("QX11GLWindowSurface::flush()"); - QTime startTime = QTime::currentTime(); + // We don't need to know the widget which initiated the flush. Instead we just use the offset + // to translate the widgetRegion: + Q_UNUSED(widget); + if (m_backBuffer.isNull()) { - qDebug("QHarmattanWindowSurface::flush() - backBuffer is null, not flushing anything"); + qDebug("QX11GLWindowSurface::flush() - backBuffer is null, not flushing anything"); return; } - QPoint widgetOffset = qt_qwidget_data(widget)->wrect.topLeft(); - QRegion windowRegion(widgetRegion); - QRect boundingRect = widgetRegion.boundingRect(); - if (!widgetOffset.isNull()) - windowRegion.translate(-widgetOffset); - QRect windowBoundingRect = windowRegion.boundingRect(); + Q_ASSERT(window()->size() != m_backBuffer.size()); + + // Wait for all GL rendering to the back buffer pixmap to complete before trying to + // copy it to the window. We do this by making sure the pixmap's context is current + // and then call eglWaitClient. The EGL 1.4 spec says eglWaitClient doesn't have to + // block, just that "All rendering calls...are guaranteed to be executed before native + // rendering calls". This makes it potentially less expensive than glFinish. + QGLContext* ctx = static_cast<QX11GLPixmapData*>(m_backBuffer.data_ptr().data())->context(); + if (QGLContext::currentContext() != ctx && ctx && ctx->isValid()) + ctx->makeCurrent(); + eglWaitClient(); + + if (m_windowGC == 0) { + XGCValues attribs; + attribs.graphics_exposures = False; + m_windowGC = XCreateGC(X11->display, m_window->handle(), GCGraphicsExposures, &attribs); + } int rectCount; - XRectangle *rects = (XRectangle *)qt_getClipRects(windowRegion, rectCount); + XRectangle *rects = (XRectangle *)qt_getClipRects(widgetRegion, rectCount); if (rectCount <= 0) return; -// qDebug() << "XSetClipRectangles"; -// for (int i = 0; i < num; ++i) -// qDebug() << ' ' << i << rects[i].x << rects[i].x << rects[i].y << rects[i].width << rects[i].height; - if (m_GC == 0) { - m_GC = XCreateGC(X11->display, m_window->handle(), 0, 0); - XSetGraphicsExposures(X11->display, m_GC, False); - } + XSetClipRectangles(X11->display, m_windowGC, 0, 0, rects, rectCount, YXBanded); + + QRect dirtyRect = widgetRegion.boundingRect().translated(-offset); + XCopyArea(X11->display, m_backBuffer.handle(), m_window->handle(), m_windowGC, + dirtyRect.x(), dirtyRect.y(), dirtyRect.width(), dirtyRect.height(), + dirtyRect.x(), dirtyRect.y()); - XSetClipRectangles(X11->display, m_GC, 0, 0, rects, rectCount, YXBanded); - XCopyArea(X11->display, m_backBuffer.handle(), m_window->handle(), m_GC, - boundingRect.x() + offset.x(), boundingRect.y() + offset.y(), - boundingRect.width(), boundingRect.height(), - windowBoundingRect.x(), windowBoundingRect.y()); + // Make sure the blit of the update from the back buffer to the window completes + // before allowing rendering to start again to the back buffer. Otherwise the GPU + // might start rendering to the back buffer again while the blit takes place. + eglWaitNative(EGL_CORE_NATIVE_ENGINE); } void QX11GLWindowSurface::setGeometry(const QRect &rect) { if (rect.width() > m_backBuffer.size().width() || rect.height() > m_backBuffer.size().height()) { - QSize newSize = rect.size(); -// QSize newSize(1024,512); - qDebug() << "QX11GLWindowSurface::setGeometry() - creating a pixmap of size" << newSize; QX11GLPixmapData *pd = new QX11GLPixmapData; + QSize newSize = rect.size(); pd->resize(newSize.width(), newSize.height()); m_backBuffer = QPixmap(pd); + if (window()->testAttribute(Qt::WA_TranslucentBackground)) + m_backBuffer.fill(Qt::transparent); + if (m_pixmapGC) { + XFreeGC(X11->display, m_pixmapGC); + m_pixmapGC = 0; + } } -// if (gc) -// XFreeGC(X11->display, gc); -// gc = XCreateGC(X11->display, d_ptr->device.handle(), 0, 0); -// XSetGraphicsExposures(X11->display, gc, False); QWindowSurface::setGeometry(rect); } bool QX11GLWindowSurface::scroll(const QRegion &area, int dx, int dy) { - Q_UNUSED(area); - Q_UNUSED(dx); - Q_UNUSED(dy); - return false; -} + if (m_backBuffer.isNull()) + return false; -/* -void QX11GLWindowSurface::beginPaint(const QRegion ®ion) -{ -} + Q_ASSERT(m_backBuffer.data_ptr()->classId() == QPixmapData::X11Class); -void QX11GLWindowSurface::endPaint(const QRegion ®ion) -{ + // Make sure all GL rendering is complete before starting the scroll operation: + QGLContext* ctx = static_cast<QX11GLPixmapData*>(m_backBuffer.data_ptr().data())->context(); + if (QGLContext::currentContext() != ctx && ctx && ctx->isValid()) + ctx->makeCurrent(); + eglWaitClient(); + + if (!m_pixmapGC) + m_pixmapGC = XCreateGC(X11->display, m_backBuffer.handle(), 0, 0); + + foreach (const QRect& rect, area.rects()) { + XCopyArea(X11->display, m_backBuffer.handle(), m_backBuffer.handle(), m_pixmapGC, + rect.x(), rect.y(), rect.width(), rect.height(), + rect.x()+dx, rect.y()+dy); + } + + // Make sure the scroll operation is complete before allowing GL rendering to resume + eglWaitNative(EGL_CORE_NATIVE_ENGINE); + + return true; } -QImage *QX11GLWindowSurface::buffer(const QWidget *widget) + +QPixmap QX11GLWindowSurface::grabWidget(const QWidget *widget, const QRect& rect) const { + if (!widget || m_backBuffer.isNull()) + return QPixmap(); + + QRect srcRect; + + // make sure the rect is inside the widget & clip to widget's rect + if (!rect.isEmpty()) + srcRect = rect & widget->rect(); + else + srcRect = widget->rect(); + + if (srcRect.isEmpty()) + return QPixmap(); + + // If it's a child widget we have to translate the coordinates + if (widget != window()) + srcRect.translate(widget->mapTo(window(), QPoint(0, 0))); + + QPixmap::x11SetDefaultScreen(widget->x11Info().screen()); + + QX11PixmapData *pmd = new QX11PixmapData(QPixmapData::PixmapType); + pmd->resize(srcRect.width(), srcRect.height()); + QPixmap px(pmd); + + GC tmpGc = XCreateGC(X11->display, m_backBuffer.handle(), 0, 0); + + // Make sure all GL rendering is complete before copying the window + QGLContext* ctx = static_cast<QX11GLPixmapData*>(m_backBuffer.pixmapData())->context(); + if (QGLContext::currentContext() != ctx && ctx && ctx->isValid()) + ctx->makeCurrent(); + eglWaitClient(); + + // Copy srcRect from the backing store to the new pixmap + XSetGraphicsExposures(X11->display, tmpGc, False); + XCopyArea(X11->display, m_backBuffer.handle(), px.handle(), tmpGc, + srcRect.x(), srcRect.y(), srcRect.width(), srcRect.height(), 0, 0); + XFreeGC(X11->display, tmpGc); + + // Wait until the copy has finised before allowing more rendering into the back buffer + eglWaitNative(EGL_CORE_NATIVE_ENGINE); + + return px; } -*/ QT_END_NAMESPACE diff --git a/src/opengl/qwindowsurface_x11gl_p.h b/src/opengl/qwindowsurface_x11gl_p.h index 90f3ad5..4d493d0 100644 --- a/src/opengl/qwindowsurface_x11gl_p.h +++ b/src/opengl/qwindowsurface_x11gl_p.h @@ -68,9 +68,11 @@ public: void flush(QWidget *widget, const QRegion ®ion, const QPoint &offset); void setGeometry(const QRect &rect); bool scroll(const QRegion &area, int dx, int dy); + QPixmap grabWidget(const QWidget *widget, const QRect& rectangle = QRect()) const; private: - GC m_GC; + GC m_windowGC; + GC m_pixmapGC; QPixmap m_backBuffer; QWidget *m_window; }; |