diff options
Diffstat (limited to 'src/opengl/gl2paintengineex')
| -rw-r--r-- | src/opengl/gl2paintengineex/qglengineshadermanager.cpp | 338 | ||||
| -rw-r--r-- | src/opengl/gl2paintengineex/qglengineshadermanager_p.h | 13 | ||||
| -rw-r--r-- | src/opengl/gl2paintengineex/qglengineshadersource_p.h | 46 | ||||
| -rw-r--r-- | src/opengl/gl2paintengineex/qglgradientcache.cpp | 35 | ||||
| -rw-r--r-- | src/opengl/gl2paintengineex/qglgradientcache_p.h | 9 | ||||
| -rw-r--r-- | src/opengl/gl2paintengineex/qglshadercache_meego_p.h | 457 | ||||
| -rw-r--r-- | src/opengl/gl2paintengineex/qglshadercache_p.h | 98 | ||||
| -rw-r--r-- | src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp | 221 | ||||
| -rw-r--r-- | src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h | 2 | ||||
| -rw-r--r-- | src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp | 250 | ||||
| -rw-r--r-- | src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h | 115 |
11 files changed, 1169 insertions, 415 deletions
diff --git a/src/opengl/gl2paintengineex/qglengineshadermanager.cpp b/src/opengl/gl2paintengineex/qglengineshadermanager.cpp index 62bce96..207ab3d 100644 --- a/src/opengl/gl2paintengineex/qglengineshadermanager.cpp +++ b/src/opengl/gl2paintengineex/qglengineshadermanager.cpp @@ -42,29 +42,35 @@ #include "qglengineshadermanager_p.h" #include "qglengineshadersource_p.h" #include "qpaintengineex_opengl2_p.h" +#include "qglshadercache_p.h" #if defined(QT_DEBUG) #include <QMetaEnum> #endif +// #define QT_GL_SHARED_SHADER_DEBUG QT_BEGIN_NAMESPACE -static void qt_shared_shaders_free(void *data) +class QGLShaderStorage { - delete reinterpret_cast<QGLEngineSharedShaders *>(data); -} +public: + QGLEngineSharedShaders *shadersForThread(const QGLContext *context) { + QGLContextGroupResource<QGLEngineSharedShaders> *&shaders = m_storage.localData(); + if (!shaders) + shaders = new QGLContextGroupResource<QGLEngineSharedShaders>(); + return shaders->value(context); + } + +private: + QThreadStorage<QGLContextGroupResource<QGLEngineSharedShaders> *> m_storage; +}; -Q_GLOBAL_STATIC_WITH_ARGS(QGLContextResource, qt_shared_shaders, (qt_shared_shaders_free)) +Q_GLOBAL_STATIC(QGLShaderStorage, qt_shader_storage); QGLEngineSharedShaders *QGLEngineSharedShaders::shadersForContext(const QGLContext *context) { - QGLEngineSharedShaders *p = reinterpret_cast<QGLEngineSharedShaders *>(qt_shared_shaders()->value(context)); - if (!p) { - QGLShareContextScope scope(context); - qt_shared_shaders()->insert(context, p = new QGLEngineSharedShaders(context)); - } - return p; + return qt_shader_storage()->shadersForThread(context); } const char* QGLEngineSharedShaders::qShaderSnippets[] = { @@ -165,69 +171,109 @@ QGLEngineSharedShaders::QGLEngineSharedShaders(const QGLContext* context) QGLShader* fragShader; QGLShader* vertexShader; - QByteArray source; + QByteArray vertexSource; + QByteArray fragSource; // Compile up the simple shader: - source.clear(); - source.append(qShaderSnippets[MainVertexShader]); - source.append(qShaderSnippets[PositionOnlyVertexShader]); - vertexShader = new QGLShader(QGLShader::Vertex, context, this); - if (!vertexShader->compileSourceCode(source)) - qWarning("Vertex shader for simpleShaderProg (MainVertexShader & PositionOnlyVertexShader) failed to compile"); - - source.clear(); - source.append(qShaderSnippets[MainFragmentShader]); - source.append(qShaderSnippets[ShockingPinkSrcFragmentShader]); - fragShader = new QGLShader(QGLShader::Fragment, context, this); - if (!fragShader->compileSourceCode(source)) - qWarning("Fragment shader for simpleShaderProg (MainFragmentShader & ShockingPinkSrcFragmentShader) failed to compile"); - - simpleShaderProg = new QGLShaderProgram(context, this); - simpleShaderProg->addShader(vertexShader); - simpleShaderProg->addShader(fragShader); - simpleShaderProg->bindAttributeLocation("vertexCoordsArray", QT_VERTEX_COORDS_ATTR); - simpleShaderProg->bindAttributeLocation("pmvMatrix1", QT_PMV_MATRIX_1_ATTR); - simpleShaderProg->bindAttributeLocation("pmvMatrix2", QT_PMV_MATRIX_2_ATTR); - simpleShaderProg->bindAttributeLocation("pmvMatrix3", QT_PMV_MATRIX_3_ATTR); + vertexSource.append(qShaderSnippets[MainVertexShader]); + vertexSource.append(qShaderSnippets[PositionOnlyVertexShader]); + + fragSource.append(qShaderSnippets[MainFragmentShader]); + fragSource.append(qShaderSnippets[ShockingPinkSrcFragmentShader]); + + simpleShaderProg = new QGLShaderProgram(context, 0); + + CachedShader simpleShaderCache(fragSource, vertexSource); + + bool inCache = simpleShaderCache.load(simpleShaderProg, context); + + if (!inCache) { + vertexShader = new QGLShader(QGLShader::Vertex, context, 0); + shaders.append(vertexShader); + if (!vertexShader->compileSourceCode(vertexSource)) + qWarning("Vertex shader for simpleShaderProg (MainVertexShader & PositionOnlyVertexShader) failed to compile"); + + fragShader = new QGLShader(QGLShader::Fragment, context, 0); + shaders.append(fragShader); + if (!fragShader->compileSourceCode(fragSource)) + qWarning("Fragment shader for simpleShaderProg (MainFragmentShader & ShockingPinkSrcFragmentShader) failed to compile"); + + simpleShaderProg->addShader(vertexShader); + simpleShaderProg->addShader(fragShader); + + simpleShaderProg->bindAttributeLocation("vertexCoordsArray", QT_VERTEX_COORDS_ATTR); + simpleShaderProg->bindAttributeLocation("pmvMatrix1", QT_PMV_MATRIX_1_ATTR); + simpleShaderProg->bindAttributeLocation("pmvMatrix2", QT_PMV_MATRIX_2_ATTR); + simpleShaderProg->bindAttributeLocation("pmvMatrix3", QT_PMV_MATRIX_3_ATTR); + } + simpleShaderProg->link(); - if (!simpleShaderProg->isLinked()) { + + if (simpleShaderProg->isLinked()) { + if (!inCache) + simpleShaderCache.store(simpleShaderProg, context); + } else { qCritical() << "Errors linking simple shader:" << simpleShaderProg->log(); } // Compile the blit shader: - source.clear(); - source.append(qShaderSnippets[MainWithTexCoordsVertexShader]); - source.append(qShaderSnippets[UntransformedPositionVertexShader]); - vertexShader = new QGLShader(QGLShader::Vertex, context, this); - if (!vertexShader->compileSourceCode(source)) - qWarning("Vertex shader for blitShaderProg (MainWithTexCoordsVertexShader & UntransformedPositionVertexShader) failed to compile"); - - source.clear(); - source.append(qShaderSnippets[MainFragmentShader]); - source.append(qShaderSnippets[ImageSrcFragmentShader]); - fragShader = new QGLShader(QGLShader::Fragment, context, this); - if (!fragShader->compileSourceCode(source)) - qWarning("Fragment shader for blitShaderProg (MainFragmentShader & ImageSrcFragmentShader) failed to compile"); - - blitShaderProg = new QGLShaderProgram(context, this); - blitShaderProg->addShader(vertexShader); - blitShaderProg->addShader(fragShader); - blitShaderProg->bindAttributeLocation("textureCoordArray", QT_TEXTURE_COORDS_ATTR); - blitShaderProg->bindAttributeLocation("vertexCoordsArray", QT_VERTEX_COORDS_ATTR); + vertexSource.clear(); + vertexSource.append(qShaderSnippets[MainWithTexCoordsVertexShader]); + vertexSource.append(qShaderSnippets[UntransformedPositionVertexShader]); + + fragSource.clear(); + fragSource.append(qShaderSnippets[MainFragmentShader]); + fragSource.append(qShaderSnippets[ImageSrcFragmentShader]); + + blitShaderProg = new QGLShaderProgram(context, 0); + + CachedShader blitShaderCache(fragSource, vertexSource); + + inCache = blitShaderCache.load(blitShaderProg, context); + + if (!inCache) { + vertexShader = new QGLShader(QGLShader::Vertex, context, 0); + shaders.append(vertexShader); + if (!vertexShader->compileSourceCode(vertexSource)) + qWarning("Vertex shader for blitShaderProg (MainWithTexCoordsVertexShader & UntransformedPositionVertexShader) failed to compile"); + + fragShader = new QGLShader(QGLShader::Fragment, context, 0); + shaders.append(fragShader); + if (!fragShader->compileSourceCode(fragSource)) + qWarning("Fragment shader for blitShaderProg (MainFragmentShader & ImageSrcFragmentShader) failed to compile"); + + blitShaderProg->addShader(vertexShader); + blitShaderProg->addShader(fragShader); + + blitShaderProg->bindAttributeLocation("textureCoordArray", QT_TEXTURE_COORDS_ATTR); + blitShaderProg->bindAttributeLocation("vertexCoordsArray", QT_VERTEX_COORDS_ATTR); + } + blitShaderProg->link(); - if (!blitShaderProg->isLinked()) { + if (blitShaderProg->isLinked()) { + if (!inCache) + blitShaderCache.store(blitShaderProg, context); + } else { qCritical() << "Errors linking blit shader:" - << simpleShaderProg->log(); + << blitShaderProg->log(); } +#ifdef QT_GL_SHARED_SHADER_DEBUG + qDebug(" -> QGLEngineSharedShaders() %p for thread %p.", this, QThread::currentThread()); +#endif } QGLEngineSharedShaders::~QGLEngineSharedShaders() { - QList<QGLEngineShaderProg*>::iterator itr; - for (itr = cachedPrograms.begin(); itr != cachedPrograms.end(); ++itr) - delete *itr; +#ifdef QT_GL_SHARED_SHADER_DEBUG + qDebug(" -> ~QGLEngineSharedShaders() %p for thread %p.", this, QThread::currentThread()); +#endif + qDeleteAll(shaders); + shaders.clear(); + + qDeleteAll(cachedPrograms); + cachedPrograms.clear(); if (blitShaderProg) { delete blitShaderProg; @@ -262,99 +308,110 @@ QGLEngineShaderProg *QGLEngineSharedShaders::findProgramInCache(const QGLEngineS } } - QGLShader *vertexShader = 0; - QGLShader *fragShader = 0; - QGLEngineShaderProg *newProg = 0; - bool success = false; + QScopedPointer<QGLEngineShaderProg> newProg; do { - QByteArray source; + QByteArray fragSource; // Insert the custom stage before the srcPixel shader to work around an ATI driver bug // where you cannot forward declare a function that takes a sampler as argument. if (prog.srcPixelFragShader == CustomImageSrcFragmentShader) - source.append(prog.customStageSource); - source.append(qShaderSnippets[prog.mainFragShader]); - source.append(qShaderSnippets[prog.srcPixelFragShader]); + fragSource.append(prog.customStageSource); + fragSource.append(qShaderSnippets[prog.mainFragShader]); + fragSource.append(qShaderSnippets[prog.srcPixelFragShader]); if (prog.compositionFragShader) - source.append(qShaderSnippets[prog.compositionFragShader]); + fragSource.append(qShaderSnippets[prog.compositionFragShader]); if (prog.maskFragShader) - source.append(qShaderSnippets[prog.maskFragShader]); - fragShader = new QGLShader(QGLShader::Fragment, ctxGuard.context(), this); - QByteArray description; + fragSource.append(qShaderSnippets[prog.maskFragShader]); + + QByteArray vertexSource; + vertexSource.append(qShaderSnippets[prog.mainVertexShader]); + vertexSource.append(qShaderSnippets[prog.positionVertexShader]); + + QScopedPointer<QGLShaderProgram> shaderProgram(new QGLShaderProgram(ctxGuard.context(), 0)); + + CachedShader shaderCache(fragSource, vertexSource); + bool inCache = shaderCache.load(shaderProgram.data(), ctxGuard.context()); + + if (!inCache) { + + QScopedPointer<QGLShader> fragShader(new QGLShader(QGLShader::Fragment, ctxGuard.context(), 0)); + QByteArray description; #if defined(QT_DEBUG) - // Name the shader for easier debugging - description.append("Fragment shader: main="); - description.append(snippetNameStr(prog.mainFragShader)); - description.append(", srcPixel="); - description.append(snippetNameStr(prog.srcPixelFragShader)); - if (prog.compositionFragShader) { - description.append(", composition="); - description.append(snippetNameStr(prog.compositionFragShader)); - } - if (prog.maskFragShader) { - description.append(", mask="); - description.append(snippetNameStr(prog.maskFragShader)); - } - fragShader->setObjectName(QString::fromLatin1(description)); + // Name the shader for easier debugging + description.append("Fragment shader: main="); + description.append(snippetNameStr(prog.mainFragShader)); + description.append(", srcPixel="); + description.append(snippetNameStr(prog.srcPixelFragShader)); + if (prog.compositionFragShader) { + description.append(", composition="); + description.append(snippetNameStr(prog.compositionFragShader)); + } + if (prog.maskFragShader) { + description.append(", mask="); + description.append(snippetNameStr(prog.maskFragShader)); + } + fragShader->setObjectName(QString::fromLatin1(description)); #endif - if (!fragShader->compileSourceCode(source)) { - qWarning() << "Warning:" << description << "failed to compile!"; - break; - } + if (!fragShader->compileSourceCode(fragSource)) { + qWarning() << "Warning:" << description << "failed to compile!"; + break; + } - source.clear(); - source.append(qShaderSnippets[prog.mainVertexShader]); - source.append(qShaderSnippets[prog.positionVertexShader]); - vertexShader = new QGLShader(QGLShader::Vertex, ctxGuard.context(), this); + QScopedPointer<QGLShader> vertexShader(new QGLShader(QGLShader::Vertex, ctxGuard.context(), 0)); #if defined(QT_DEBUG) - // Name the shader for easier debugging - description.clear(); - description.append("Vertex shader: main="); - description.append(snippetNameStr(prog.mainVertexShader)); - description.append(", position="); - description.append(snippetNameStr(prog.positionVertexShader)); - vertexShader->setObjectName(QString::fromLatin1(description)); + // Name the shader for easier debugging + description.clear(); + description.append("Vertex shader: main="); + description.append(snippetNameStr(prog.mainVertexShader)); + description.append(", position="); + description.append(snippetNameStr(prog.positionVertexShader)); + vertexShader->setObjectName(QString::fromLatin1(description)); #endif - if (!vertexShader->compileSourceCode(source)) { - qWarning() << "Warning:" << description << "failed to compile!"; - break; - } + if (!vertexShader->compileSourceCode(vertexSource)) { + qWarning() << "Warning:" << description << "failed to compile!"; + break; + } - newProg = new QGLEngineShaderProg(prog); - - // If the shader program's not found in the cache, create it now. - newProg->program = new QGLShaderProgram(ctxGuard.context(), this); - newProg->program->addShader(vertexShader); - newProg->program->addShader(fragShader); - - // We have to bind the vertex attribute names before the program is linked: - newProg->program->bindAttributeLocation("vertexCoordsArray", QT_VERTEX_COORDS_ATTR); - if (newProg->useTextureCoords) - newProg->program->bindAttributeLocation("textureCoordArray", QT_TEXTURE_COORDS_ATTR); - if (newProg->useOpacityAttribute) - newProg->program->bindAttributeLocation("opacityArray", QT_OPACITY_ATTR); - 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); + shaders.append(vertexShader.data()); + shaders.append(fragShader.data()); + shaderProgram->addShader(vertexShader.take()); + shaderProgram->addShader(fragShader.take()); + + // We have to bind the vertex attribute names before the program is linked: + shaderProgram->bindAttributeLocation("vertexCoordsArray", QT_VERTEX_COORDS_ATTR); + if (prog.useTextureCoords) + shaderProgram->bindAttributeLocation("textureCoordArray", QT_TEXTURE_COORDS_ATTR); + if (prog.useOpacityAttribute) + shaderProgram->bindAttributeLocation("opacityArray", QT_OPACITY_ATTR); + if (prog.usePmvMatrixAttribute) { + shaderProgram->bindAttributeLocation("pmvMatrix1", QT_PMV_MATRIX_1_ATTR); + shaderProgram->bindAttributeLocation("pmvMatrix2", QT_PMV_MATRIX_2_ATTR); + shaderProgram->bindAttributeLocation("pmvMatrix3", QT_PMV_MATRIX_3_ATTR); + } } + newProg.reset(new QGLEngineShaderProg(prog)); + newProg->program = shaderProgram.take(); + newProg->program->link(); - if (!newProg->program->isLinked()) { + if (newProg->program->isLinked()) { + if (!inCache) + shaderCache.store(newProg->program, ctxGuard.context()); + } else { QLatin1String none("none"); QLatin1String br("\n"); QString error; - error = QLatin1String("Shader program failed to link,") + error = QLatin1String("Shader program failed to link,"); #if defined(QT_DEBUG) - + br - + QLatin1String(" Shaders Used:") + br - + QLatin1String(" ") + vertexShader->objectName() + QLatin1String(": ") + br - + QLatin1String(vertexShader->sourceCode()) + br - + QLatin1String(" ") + fragShader->objectName() + QLatin1String(": ") + br - + QLatin1String(fragShader->sourceCode()) + br + error += QLatin1String("\n Shaders Used:\n"); + for (int i = 0; i < newProg->program->shaders().count(); ++i) { + QGLShader *shader = newProg->program->shaders().at(i); + error += QLatin1String(" ") + shader->objectName() + QLatin1String(": \n") + + QLatin1String(shader->sourceCode()) + br; + } #endif - + QLatin1String(" Error Log:\n") - + QLatin1String(" ") + newProg->program->log(); + error += QLatin1String(" Error Log:\n") + + QLatin1String(" ") + newProg->program->log(); qWarning() << error; break; } @@ -376,26 +433,10 @@ QGLEngineShaderProg *QGLEngineSharedShaders::findProgramInCache(const QGLEngineS } } - cachedPrograms.insert(0, newProg); - - success = true; + cachedPrograms.insert(0, newProg.data()); } while (false); - // Clean up everything if we weren't successful - if (!success) { - if (newProg) { - delete newProg; // Also deletes the QGLShaderProgram which in turn deletes the QGLShaders - newProg = 0; - } - else { - if (vertexShader) - delete vertexShader; - if (fragShader) - delete fragShader; - } - } - - return newProg; + return newProg.take(); } void QGLEngineSharedShaders::cleanupCustomStage(QGLCustomShaderStage* stage) @@ -424,7 +465,6 @@ QGLEngineShaderManager::QGLEngineShaderManager(QGLContext* context) currentShaderProg(0) { sharedShaders = QGLEngineSharedShaders::shadersForContext(context); - connect(sharedShaders, SIGNAL(shaderProgNeedsChanging()), this, SLOT(shaderProgNeedsChangingSlot())); } QGLEngineShaderManager::~QGLEngineShaderManager() @@ -455,6 +495,8 @@ GLuint QGLEngineShaderManager::getUniformLocation(Uniform id) "fmp", "fmp2_m_radius2", "inverse_2_fmp2_m_radius2", + "sqrfr", + "bradius", "invertedTextureSize", "brushTransform", "brushTexture", diff --git a/src/opengl/gl2paintengineex/qglengineshadermanager_p.h b/src/opengl/gl2paintengineex/qglengineshadermanager_p.h index 1afdd5b..bf2fe42 100644 --- a/src/opengl/gl2paintengineex/qglengineshadermanager_p.h +++ b/src/opengl/gl2paintengineex/qglengineshadermanager_p.h @@ -259,9 +259,9 @@ static const GLuint QT_PMV_MATRIX_3_ATTR = 5; class QGLEngineShaderProg; -class QGLEngineSharedShaders : public QObject +class Q_OPENGL_EXPORT QGLEngineSharedShaders { - Q_OBJECT + Q_GADGET public: enum SnippetName { @@ -364,14 +364,12 @@ public: // full. void cleanupCustomStage(QGLCustomShaderStage* stage); -signals: - void shaderProgNeedsChanging(); - private: QGLSharedResourceGuard ctxGuard; QGLShaderProgram *blitShaderProg; QGLShaderProgram *simpleShaderProg; QList<QGLEngineShaderProg*> cachedPrograms; + QList<QGLShader *> shaders; static const char* qShaderSnippets[TotalSnippetCount]; }; @@ -444,6 +442,8 @@ public: Fmp, Fmp2MRadius2, Inverse2Fmp2MRadius2, + SqrFr, + BRadius, InvertedTextureSize, BrushTransform, BrushTexture, @@ -492,9 +492,6 @@ public: QGLEngineSharedShaders* sharedShaders; -private slots: - void shaderProgNeedsChangingSlot() { shaderProgNeedsChanging = true; } - private: QGLContext* ctx; bool shaderProgNeedsChanging; diff --git a/src/opengl/gl2paintengineex/qglengineshadersource_p.h b/src/opengl/gl2paintengineex/qglengineshadersource_p.h index 1aacc96..9362c58 100644 --- a/src/opengl/gl2paintengineex/qglengineshadersource_p.h +++ b/src/opengl/gl2paintengineex/qglengineshadersource_p.h @@ -148,7 +148,7 @@ static const char* const qglslAffinePositionWithPatternBrushVertexShader = qglslPositionWithPatternBrushVertexShader; static const char* const qglslPatternBrushSrcFragmentShader = "\n\ - uniform lowp sampler2D brushTexture; \n\ + uniform sampler2D brushTexture; \n\ uniform lowp vec4 patternColor; \n\ varying highp vec2 patternTexCoords;\n\ lowp vec4 srcPixel() \n\ @@ -183,7 +183,7 @@ static const char* const qglslAffinePositionWithLinearGradientBrushVertexShader = qglslPositionWithLinearGradientBrushVertexShader; static const char* const qglslLinearGradientBrushSrcFragmentShader = "\n\ - uniform lowp sampler2D brushTexture; \n\ + uniform sampler2D brushTexture; \n\ varying mediump float index; \n\ lowp vec4 srcPixel() \n\ { \n\ @@ -218,7 +218,7 @@ static const char* const qglslAffinePositionWithConicalGradientBrushVertexShader static const char* const qglslConicalGradientBrushSrcFragmentShader = "\n\ #define INVERSE_2PI 0.1591549430918953358 \n\ - uniform lowp sampler2D brushTexture; \n\ + uniform sampler2D brushTexture; \n\ uniform mediump float angle; \n\ varying highp vec2 A; \n\ lowp vec4 srcPixel() \n\ @@ -241,6 +241,7 @@ static const char* const qglslPositionWithRadialGradientBrushVertexShader = "\n\ uniform mediump vec2 halfViewportSize; \n\ uniform highp mat3 brushTransform; \n\ uniform highp vec2 fmp; \n\ + uniform highp vec3 bradius; \n\ varying highp float b; \n\ varying highp vec2 A; \n\ void setPosition(void) \n\ @@ -253,23 +254,32 @@ static const char* const qglslPositionWithRadialGradientBrushVertexShader = "\n\ mediump float invertedHTexCoordsZ = 1.0 / hTexCoords.z; \n\ gl_Position = vec4(gl_Position.xy * invertedHTexCoordsZ, 0.0, invertedHTexCoordsZ); \n\ A = hTexCoords.xy * invertedHTexCoordsZ; \n\ - b = 2.0 * dot(A, fmp); \n\ + b = bradius.x + 2.0 * dot(A, fmp); \n\ }\n"; static const char* const qglslAffinePositionWithRadialGradientBrushVertexShader = qglslPositionWithRadialGradientBrushVertexShader; static const char* const qglslRadialGradientBrushSrcFragmentShader = "\n\ - uniform lowp sampler2D brushTexture; \n\ + uniform sampler2D brushTexture; \n\ uniform highp float fmp2_m_radius2; \n\ uniform highp float inverse_2_fmp2_m_radius2; \n\ + uniform highp float sqrfr; \n\ varying highp float b; \n\ varying highp vec2 A; \n\ + uniform highp vec3 bradius; \n\ lowp vec4 srcPixel() \n\ { \n\ - highp float c = -dot(A, A); \n\ - highp vec2 val = vec2((-b + sqrt(b*b - 4.0*fmp2_m_radius2*c)) * inverse_2_fmp2_m_radius2, 0.5); \n\ - return texture2D(brushTexture, val); \n\ + highp float c = sqrfr-dot(A, A); \n\ + highp float det = b*b - 4.0*fmp2_m_radius2*c; \n\ + lowp vec4 result = vec4(0.0); \n\ + if (det >= 0.0) { \n\ + highp float detSqrt = sqrt(det); \n\ + highp float w = max((-b - detSqrt) * inverse_2_fmp2_m_radius2, (-b + detSqrt) * inverse_2_fmp2_m_radius2); \n\ + if (bradius.y + w * bradius.z >= 0.0) \n\ + result = texture2D(brushTexture, vec2(w, 0.5)); \n\ + } \n\ + return result; \n\ }\n"; @@ -304,14 +314,14 @@ static const char* const qglslAffinePositionWithTextureBrushVertexShader // TODO: Special case POT textures which don't need this emulation static const char* const qglslTextureBrushSrcFragmentShader = "\n\ varying highp vec2 brushTextureCoords; \n\ - uniform lowp sampler2D brushTexture; \n\ + uniform sampler2D brushTexture; \n\ lowp vec4 srcPixel() { \n\ return texture2D(brushTexture, fract(brushTextureCoords)); \n\ }\n"; #else static const char* const qglslTextureBrushSrcFragmentShader = "\n\ varying highp vec2 brushTextureCoords; \n\ - uniform lowp sampler2D brushTexture; \n\ + uniform sampler2D brushTexture; \n\ lowp vec4 srcPixel() \n\ { \n\ return texture2D(brushTexture, brushTextureCoords); \n\ @@ -321,7 +331,7 @@ static const char* const qglslTextureBrushSrcFragmentShader = "\n\ static const char* const qglslTextureBrushSrcWithPatternFragmentShader = "\n\ varying highp vec2 brushTextureCoords; \n\ uniform lowp vec4 patternColor; \n\ - uniform lowp sampler2D brushTexture; \n\ + uniform sampler2D brushTexture; \n\ lowp vec4 srcPixel() \n\ { \n\ return patternColor * (1.0 - texture2D(brushTexture, brushTextureCoords).r); \n\ @@ -337,7 +347,7 @@ static const char* const qglslSolidBrushSrcFragmentShader = "\n\ static const char* const qglslImageSrcFragmentShader = "\n\ varying highp vec2 textureCoords; \n\ - uniform lowp sampler2D imageTexture; \n\ + uniform sampler2D imageTexture; \n\ lowp vec4 srcPixel() \n\ { \n" "return texture2D(imageTexture, textureCoords); \n" @@ -345,7 +355,7 @@ static const char* const qglslImageSrcFragmentShader = "\n\ static const char* const qglslCustomSrcFragmentShader = "\n\ varying highp vec2 textureCoords; \n\ - uniform lowp sampler2D imageTexture; \n\ + uniform sampler2D imageTexture; \n\ lowp vec4 srcPixel() \n\ { \n\ return customShader(imageTexture, textureCoords); \n\ @@ -354,7 +364,7 @@ static const char* const qglslCustomSrcFragmentShader = "\n\ static const char* const qglslImageSrcWithPatternFragmentShader = "\n\ varying highp vec2 textureCoords; \n\ uniform lowp vec4 patternColor; \n\ - uniform lowp sampler2D imageTexture; \n\ + uniform sampler2D imageTexture; \n\ lowp vec4 srcPixel() \n\ { \n\ return patternColor * (1.0 - texture2D(imageTexture, textureCoords).r); \n\ @@ -362,7 +372,7 @@ static const char* const qglslImageSrcWithPatternFragmentShader = "\n\ static const char* const qglslNonPremultipliedImageSrcFragmentShader = "\n\ varying highp vec2 textureCoords; \n\ - uniform lowp sampler2D imageTexture; \n\ + uniform sampler2D imageTexture; \n\ lowp vec4 srcPixel() \n\ { \n\ lowp vec4 sample = texture2D(imageTexture, textureCoords); \n\ @@ -454,7 +464,7 @@ static const char* const qglslMainFragmentShader = "\n\ static const char* const qglslMaskFragmentShader = "\n\ varying highp vec2 textureCoords;\n\ - uniform lowp sampler2D maskTexture;\n\ + uniform sampler2D maskTexture;\n\ lowp vec4 applyMask(lowp vec4 src) \n\ {\n\ lowp vec4 mask = texture2D(maskTexture, textureCoords); \n\ @@ -478,7 +488,7 @@ static const char* const qglslMaskFragmentShader = "\n\ static const char* const qglslRgbMaskFragmentShaderPass1 = "\n\ varying highp vec2 textureCoords;\n\ - uniform lowp sampler2D maskTexture;\n\ + uniform sampler2D maskTexture;\n\ lowp vec4 applyMask(lowp vec4 src) \n\ { \n\ lowp vec4 mask = texture2D(maskTexture, textureCoords); \n\ @@ -487,7 +497,7 @@ static const char* const qglslRgbMaskFragmentShaderPass1 = "\n\ static const char* const qglslRgbMaskFragmentShaderPass2 = "\n\ varying highp vec2 textureCoords;\n\ - uniform lowp sampler2D maskTexture;\n\ + uniform sampler2D maskTexture;\n\ lowp vec4 applyMask(lowp vec4 src) \n\ { \n\ lowp vec4 mask = texture2D(maskTexture, textureCoords); \n\ diff --git a/src/opengl/gl2paintengineex/qglgradientcache.cpp b/src/opengl/gl2paintengineex/qglgradientcache.cpp index e84f9df..075f7d1 100644 --- a/src/opengl/gl2paintengineex/qglgradientcache.cpp +++ b/src/opengl/gl2paintengineex/qglgradientcache.cpp @@ -42,29 +42,33 @@ #include "qglgradientcache_p.h" #include <private/qdrawhelper_p.h> #include <private/qgl_p.h> - +#include <QtCore/qmutex.h> QT_BEGIN_NAMESPACE -static void QGL2GradientCache_free(void *ptr) +class QGL2GradientCacheWrapper { - delete reinterpret_cast<QGL2GradientCache *>(ptr); -} +public: + QGL2GradientCache *cacheForContext(const QGLContext *context) { + QMutexLocker lock(&m_mutex); + return m_resource.value(context); + } -Q_GLOBAL_STATIC_WITH_ARGS(QGLContextResource, qt_gradient_caches, (QGL2GradientCache_free)) +private: + QGLContextGroupResource<QGL2GradientCache> m_resource; + QMutex m_mutex; +}; + +Q_GLOBAL_STATIC(QGL2GradientCacheWrapper, qt_gradient_caches) QGL2GradientCache *QGL2GradientCache::cacheForContext(const QGLContext *context) { - QGL2GradientCache *p = reinterpret_cast<QGL2GradientCache *>(qt_gradient_caches()->value(context)); - if (!p) { - QGLShareContextScope scope(context); - p = new QGL2GradientCache; - qt_gradient_caches()->insert(context, p); - } - return p; + return qt_gradient_caches()->cacheForContext(context); } -void QGL2GradientCache::cleanCache() { +void QGL2GradientCache::cleanCache() +{ + QMutexLocker lock(&m_mutex); QGLGradientColorTableHash::const_iterator it = cache.constBegin(); for (; it != cache.constEnd(); ++it) { const CacheInfo &cache_info = it.value(); @@ -75,6 +79,7 @@ void QGL2GradientCache::cleanCache() { GLuint QGL2GradientCache::getBuffer(const QGradient &gradient, qreal opacity) { + QMutexLocker lock(&m_mutex); quint64 hash_val = 0; QGradientStops stops = gradient.stops(); @@ -88,7 +93,9 @@ GLuint QGL2GradientCache::getBuffer(const QGradient &gradient, qreal opacity) else { do { const CacheInfo &cache_info = it.value(); - if (cache_info.stops == stops && cache_info.opacity == opacity && cache_info.interpolationMode == gradient.interpolationMode()) { + if (cache_info.stops == stops && cache_info.opacity == opacity + && cache_info.interpolationMode == gradient.interpolationMode()) + { return cache_info.texId; } ++it; diff --git a/src/opengl/gl2paintengineex/qglgradientcache_p.h b/src/opengl/gl2paintengineex/qglgradientcache_p.h index fa8a60b..d1d56a1 100644 --- a/src/opengl/gl2paintengineex/qglgradientcache_p.h +++ b/src/opengl/gl2paintengineex/qglgradientcache_p.h @@ -54,6 +54,7 @@ #include <QObject> #include <QtOpenGL/QtOpenGL> #include <private/qgl_p.h> +#include <QtCore/qmutex.h> QT_BEGIN_NAMESPACE @@ -75,22 +76,22 @@ class QGL2GradientCache public: static QGL2GradientCache *cacheForContext(const QGLContext *context); - QGL2GradientCache() { } - ~QGL2GradientCache() {cleanCache();} + QGL2GradientCache(const QGLContext *) {} + ~QGL2GradientCache() { cleanCache(); } GLuint getBuffer(const QGradient &gradient, qreal opacity); inline int paletteSize() const { return 1024; } -protected: +private: inline int maxCacheSize() const { return 60; } inline void generateGradientColorTable(const QGradient& gradient, uint *colorTable, int size, qreal opacity) const; GLuint addCacheElement(quint64 hash_val, const QGradient &gradient, qreal opacity); - void cleanCache(); QGLGradientColorTableHash cache; + QMutex m_mutex; }; QT_END_NAMESPACE diff --git a/src/opengl/gl2paintengineex/qglshadercache_meego_p.h b/src/opengl/gl2paintengineex/qglshadercache_meego_p.h new file mode 100644 index 0000000..d20c731 --- /dev/null +++ b/src/opengl/gl2paintengineex/qglshadercache_meego_p.h @@ -0,0 +1,457 @@ +/**************************************************************************** +** +** Copyright (C) 2011 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// 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. +// + +#ifndef QGLSHADERCACHE_MEEGO_P_H +#define QGLSHADERCACHE_MEEGO_P_H + +#include <QtCore/qglobal.h> + +#if defined(QT_MEEGO_EXPERIMENTAL_SHADERCACHE) && defined(QT_OPENGL_ES_2) + +#include <QtCore/qcryptographichash.h> +#include <QtCore/qsharedmemory.h> +#include <QtCore/qsystemsemaphore.h> + +#ifndef QT_BOOTSTRAPPED +# include <GLES2/gl2ext.h> +#endif +#if defined(QT_DEBUG) || defined(QT_MEEGO_EXPERIMENTAL_SHADERCACHE_TRACE) +# include <syslog.h> +#endif + +QT_BEGIN_HEADER + +/* + This cache stores internal Qt shader programs in shared memory. + + This header file is ugly on purpose and can only be included once. It is only to be used + for the internal shader cache, not as a generic cache for anyone's shaders. + + The cache stores either ShaderCacheMaxEntries shader programs or ShaderCacheDataSize kilobytes + of shader programs, whatever limit is reached first. + + The layout of the cache is as outlined in the CachedShaders struct. After some + integers, an array of headers is reserved, then comes the space for the actual binaries. + + Shader Programs are identified by the md5sum of their frag and vertex shader source code. + + Shader Programs are never removed. The cache never shrinks or re-shuffles. This is done + on purpose to ensure minimum amount of locking, no alignment problems and very few write + operations. + + Note: Locking the shader cache could be expensive, because the entire system might hang. + That's why the cache is immutable to minimize the time we need to keep it locked. + + Why is it Meego specific? + + First, the size is chosen so that it fits to generic meego usage. Second, on Meego, there's + always at least one Qt application active (the launcher), so the cache will never be destroyed. + Only when the last Qt app exits, the cache dies, which should only be when someone kills the + X11 server. And last but not least it was only tested with Meego's SGX driver. + + There's a small tool in src/opengl/util/meego that dumps the contents of the cache. + */ + +// anonymous namespace, prevent exporting of the private symbols +namespace +{ + +struct CachedShaderHeader +{ + /* the index in the data[] member of CachedShaders */ + int index; + /* the size of the binary shader */ + GLsizei size; + /* the format of the binary shader */ + GLenum format; + /* the md5sum of the frag+vertex shaders */ + char md5Sum[16]; +}; + +enum +{ + /* The maximum amount of shader programs the cache can hold */ + ShaderCacheMaxEntries = 20 +}; + +typedef CachedShaderHeader CachedShaderHeaders[ShaderCacheMaxEntries]; + +enum +{ + // ShaderCacheDataSize is 20k minus the other data members of CachedShaders + ShaderCacheDataSize = 1024 * ShaderCacheMaxEntries - sizeof(CachedShaderHeaders) - 2 * sizeof(int) +}; + +struct CachedShaders +{ + /* How much space is still available in the cache */ + inline int availableSize() const { return ShaderCacheDataSize - dataSize; } + + /* The current amount of cached shaders */ + int shaderCount; + + /* The current amount (in bytes) of cached data */ + int dataSize; + + /* The headers describing the shaders */ + CachedShaderHeaders headers; + + /* The actual binary data of the shader programs */ + char data[ShaderCacheDataSize]; +}; + +//#define QT_DEBUG_SHADER_CACHE +#ifdef QT_DEBUG_SHADER_CACHE +static QDebug shaderCacheDebug() +{ + return QDebug(QtDebugMsg); +} +#else +static inline QNoDebug shaderCacheDebug() { return QNoDebug(); } +#endif + +class ShaderCacheSharedMemory +{ +public: + ShaderCacheSharedMemory() + : shm(QLatin1String("qt_gles2_shadercache_" QT_VERSION_STR)) + { + // we need a system semaphore here, since cache creation and initialization must be atomic + QSystemSemaphore attachSemaphore(QLatin1String("qt_gles2_shadercache_mutex_" QT_VERSION_STR), 1); + + if (!attachSemaphore.acquire()) { + shaderCacheDebug() << "Unable to require shader cache semaphore:" << attachSemaphore.errorString(); + return; + } + + if (shm.attach()) { + // success! + shaderCacheDebug() << "Attached to shader cache"; + } else { + + // no cache exists - create and initialize it + if (shm.create(sizeof(CachedShaders))) { + shaderCacheDebug() << "Created new shader cache"; + initializeCache(); + } else { + shaderCacheDebug() << "Unable to create shader cache:" << shm.errorString(); + } + } + + attachSemaphore.release(); + } + + inline bool isAttached() const { return shm.isAttached(); } + + inline bool lock() { return shm.lock(); } + inline bool unlock() { return shm.unlock(); } + inline void *data() { return shm.data(); } + inline QString errorString() { return shm.errorString(); } + + ~ShaderCacheSharedMemory() + { + if (!shm.detach()) + shaderCacheDebug() << "Unable to detach shader cache" << shm.errorString(); + } + +private: + void initializeCache() + { + // no need to lock the shared memory since we're already protected by the + // attach system semaphore. + + void *data = shm.data(); + Q_ASSERT(data); + + memset(data, 0, sizeof(CachedShaders)); + } + + QSharedMemory shm; +}; + +class ShaderCacheLocker +{ +public: + inline ShaderCacheLocker(ShaderCacheSharedMemory *cache) + : shm(cache->lock() ? cache : (ShaderCacheSharedMemory *)0) + { + if (!shm) + shaderCacheDebug() << "Unable to lock shader cache" << cache->errorString(); + } + + inline bool isLocked() const { return shm; } + + inline ~ShaderCacheLocker() + { + if (!shm) + return; + if (!shm->unlock()) + shaderCacheDebug() << "Unable to unlock shader cache" << shm->errorString(); + } + +private: + ShaderCacheSharedMemory *shm; +}; + +#ifdef QT_BOOTSTRAPPED +} // end namespace +#else + +static void traceCacheOverflow(const char *message) +{ +#if defined(QT_DEBUG) || defined (QT_MEEGO_EXPERIMENTAL_SHADERCACHE_TRACE) + openlog(qPrintable(QCoreApplication::applicationName()), LOG_PID | LOG_ODELAY, LOG_USER); + syslog(LOG_DEBUG, message); + closelog(); +#endif + shaderCacheDebug() << message; +} + +Q_GLOBAL_STATIC(ShaderCacheSharedMemory, shaderCacheSharedMemory) + +/* + Finds the index of the shader program identified by md5Sum in the cache. + Note: Does NOT lock the cache for reading, the cache must already be locked! + + Returns -1 when no shader was found. + */ +static int qt_cache_index_unlocked(const QByteArray &md5Sum, CachedShaders *cache) +{ + for (int i = 0; i < cache->shaderCount; ++i) { + if (qstrncmp(md5Sum.constData(), cache->headers[i].md5Sum, 16) == 0) { + return i; + } + } + return -1; +} + +/* Returns the index of the shader identified by md5Sum */ +static int qt_cache_index(const QByteArray &md5Sum) +{ + ShaderCacheSharedMemory *shm = shaderCacheSharedMemory(); + if (!shm || !shm->isAttached()) + return false; + + Q_ASSERT(md5Sum.length() == 16); + + ShaderCacheLocker locker(shm); + if (!locker.isLocked()) + return false; + + void *data = shm->data(); + Q_ASSERT(data); + + CachedShaders *cache = reinterpret_cast<CachedShaders *>(data); + + return qt_cache_index_unlocked(md5Sum, cache); +} + +/* Loads the cached shader at index \a shaderIndex into \a program + * Note: Since the cache is immutable, this operation doesn't lock the shared memory. + */ +static bool qt_cached_shader(QGLShaderProgram *program, const QGLContext *ctx, int shaderIndex) +{ + Q_ASSERT(shaderIndex >= 0 && shaderIndex <= ShaderCacheMaxEntries); + Q_ASSERT(program); + + ShaderCacheSharedMemory *shm = shaderCacheSharedMemory(); + if (!shm || !shm->isAttached()) + return false; + + void *data = shm->data(); + Q_ASSERT(data); + + CachedShaders *cache = reinterpret_cast<CachedShaders *>(data); + + shaderCacheDebug() << "fetching cached shader at index" << shaderIndex + << "dataIndex" << cache->headers[shaderIndex].index + << "size" << cache->headers[shaderIndex].size + << "format" << cache->headers[shaderIndex].format; + + // call program->programId first, since that resolves the glProgramBinaryOES symbol + GLuint programId = program->programId(); + glProgramBinaryOES(programId, cache->headers[shaderIndex].format, + cache->data + cache->headers[shaderIndex].index, + cache->headers[shaderIndex].size); + + return true; +} + +/* Stores the shader program in the cache. Returns false if there's an error with the cache, or + if the cache is too small to hold the shader. */ +static bool qt_cache_shader(const QGLShaderProgram *shader, const QGLContext *ctx, const QByteArray &md5Sum) +{ + ShaderCacheSharedMemory *shm = shaderCacheSharedMemory(); + if (!shm || !shm->isAttached()) + return false; + + void *data = shm->data(); + Q_ASSERT(data); + + CachedShaders *cache = reinterpret_cast<CachedShaders *>(data); + + ShaderCacheLocker locker(shm); + if (!locker.isLocked()) + return false; + + int cacheIdx = cache->shaderCount; + if (cacheIdx >= ShaderCacheMaxEntries) { + traceCacheOverflow("Qt OpenGL shader cache index overflow!"); + return false; + } + + // now that we have the lock on the shared memory, make sure no one + // inserted the shader already while we were unlocked + if (qt_cache_index_unlocked(md5Sum, cache) != -1) + return true; // already cached + + shaderCacheDebug() << "Caching shader at index" << cacheIdx; + + GLint binaryLength = 0; + glGetProgramiv(shader->programId(), GL_PROGRAM_BINARY_LENGTH_OES, &binaryLength); + + if (!binaryLength) { + shaderCacheDebug() << "Unable to determine binary shader size!"; + return false; + } + + if (binaryLength > cache->availableSize()) { + traceCacheOverflow("Qt OpenGL shader cache data overflow!"); + return false; + } + + GLsizei size = 0; + GLenum format = 0; + glGetProgramBinaryOES(shader->programId(), binaryLength, &size, &format, + cache->data + cache->dataSize); + + if (!size) { + shaderCacheDebug() << "Unable to get binary shader!"; + return false; + } + + cache->headers[cacheIdx].index = cache->dataSize; + cache->dataSize += binaryLength; + ++cache->shaderCount; + cache->headers[cacheIdx].size = binaryLength; + cache->headers[cacheIdx].format = format; + + memcpy(cache->headers[cacheIdx].md5Sum, md5Sum.constData(), 16); + + shaderCacheDebug() << "cached shader size" << size + << "format" << format + << "binarySize" << binaryLength + << "cache index" << cacheIdx + << "data index" << cache->headers[cacheIdx].index; + + return true; +} + +} // namespace + +QT_BEGIN_NAMESPACE + +QT_MODULE(OpenGL) + +class CachedShader +{ +public: + CachedShader(const QByteArray &fragSource, const QByteArray &vertexSource) + : cacheIdx(-1) + { + QCryptographicHash md5Hash(QCryptographicHash::Md5); + + md5Hash.addData(fragSource); + md5Hash.addData(vertexSource); + + md5Sum = md5Hash.result(); + } + + bool isCached() + { + return cacheIndex() != -1; + } + + int cacheIndex() + { + if (cacheIdx != -1) + return cacheIdx; + cacheIdx = qt_cache_index(md5Sum); + return cacheIdx; + } + + bool load(QGLShaderProgram *program, const QGLContext *ctx) + { + if (cacheIndex() == -1) + return false; + return qt_cached_shader(program, ctx, cacheIdx); + } + + bool store(QGLShaderProgram *program, const QGLContext *ctx) + { + return qt_cache_shader(program, ctx, md5Sum); + } + +private: + QByteArray md5Sum; + int cacheIdx; +}; + + +QT_END_NAMESPACE + +#endif + +QT_END_HEADER + +#endif +#endif diff --git a/src/opengl/gl2paintengineex/qglshadercache_p.h b/src/opengl/gl2paintengineex/qglshadercache_p.h new file mode 100644 index 0000000..6e496ab --- /dev/null +++ b/src/opengl/gl2paintengineex/qglshadercache_p.h @@ -0,0 +1,98 @@ +/**************************************************************************** +** +** Copyright (C) 2011 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// 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. +// + +#ifndef QGLSHADERCACHE_P_H +#define QGLSHADERCACHE_P_H + +#include <QtCore/qglobal.h> + +#if defined(QT_MEEGO_EXPERIMENTAL_SHADERCACHE) && defined(QT_OPENGL_ES_2) +# include "qglshadercache_meego_p.h" +#else + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(OpenGL) + +class QGLShaderProgram; +class QGLContext; + +class CachedShader +{ +public: + inline CachedShader(const QByteArray &, const QByteArray &) + {} + + inline bool isCached() + { + return false; + } + + inline bool load(QGLShaderProgram *, const QGLContext *) + { + return false; + } + + inline bool store(QGLShaderProgram *, const QGLContext *) + { + return false; + } +}; + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif +#endif diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp index 5c8d2b6..38bd58d 100644 --- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp +++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp @@ -98,6 +98,10 @@ extern Q_GUI_EXPORT bool qt_cleartype_enabled; extern bool qt_applefontsmoothing_enabled; #endif +#if !defined(QT_MAX_CACHED_GLYPH_SIZE) +# define QT_MAX_CACHED_GLYPH_SIZE 64 +#endif + Q_GUI_EXPORT QImage qt_imageForBrush(int brushStyle, bool invert); ////////////////////////////////// Private Methods ////////////////////////////////////////// @@ -297,7 +301,7 @@ void QGL2PaintEngineExPrivate::updateBrushUniforms() const QRadialGradient *g = static_cast<const QRadialGradient *>(currentBrush.gradient()); QPointF realCenter = g->center(); QPointF realFocal = g->focalPoint(); - qreal realRadius = g->radius(); + qreal realRadius = g->centerRadius() - g->focalRadius(); translationPoint = realFocal; QPointF fmp = realCenter - realFocal; @@ -307,6 +311,12 @@ void QGL2PaintEngineExPrivate::updateBrushUniforms() shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::Fmp2MRadius2), fmp2_m_radius2); shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::Inverse2Fmp2MRadius2), GLfloat(1.0 / (2.0*fmp2_m_radius2))); + shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::SqrFr), + GLfloat(g->focalRadius() * g->focalRadius())); + shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::BRadius), + GLfloat(2 * (g->centerRadius() - g->focalRadius()) * g->focalRadius()), + g->focalRadius(), + g->centerRadius() - g->focalRadius()); QVector2D halfViewportSize(width*0.5, height*0.5); shaderManager->currentProgram()->setUniformValue(location(QGLEngineShaderManager::HalfViewportSize), halfViewportSize); @@ -333,7 +343,13 @@ void QGL2PaintEngineExPrivate::updateBrushUniforms() matrix.translate(brushOrigin.x(), brushOrigin.y()); QTransform translate(1, 0, 0, 1, -translationPoint.x(), -translationPoint.y()); - QTransform gl_to_qt(1, 0, 0, -1, 0, height); + qreal m22 = -1; + qreal dy = height; + if (device->isFlipped()) { + m22 = 1; + dy = 0; + } + QTransform gl_to_qt(1, 0, 0, m22, 0, dy); QTransform inv_matrix; if (style == Qt::TexturePattern && textureInvertedY == -1) inv_matrix = gl_to_qt * (QTransform(1, 0, 0, -1, 0, currentBrush.texture().height()) * brushQTransform * matrix).inverted() * translate; @@ -372,10 +388,16 @@ void QGL2PaintEngineExPrivate::updateMatrix() // NOTE: The resultant matrix is also transposed, as GL expects column-major matracies const GLfloat wfactor = 2.0f / width; - const GLfloat hfactor = -2.0f / height; + GLfloat hfactor = -2.0f / height; + GLfloat dx = transform.dx(); GLfloat dy = transform.dy(); + if (device->isFlipped()) { + hfactor *= -1; + dy -= height; + } + // Non-integer translates can have strange effects for some rendering operations such as // anti-aliased text rendering. In such cases, we snap the translate to the pixel grid. if (snapToPixelGrid && transform.type() == QTransform::TxTranslate) { @@ -383,12 +405,6 @@ void QGL2PaintEngineExPrivate::updateMatrix() dx = ceilf(dx - 0.5f); dy = ceilf(dy - 0.5f); } -#ifndef Q_OS_SYMBIAN - if (addOffset) { - dx += 0.49f; - dy += 0.49f; - } -#endif pmvMatrix[0][0] = (wfactor * transform.m11()) - transform.m13(); pmvMatrix[1][0] = (wfactor * transform.m21()) - transform.m23(); pmvMatrix[2][0] = (wfactor * dx) - transform.m33(); @@ -490,11 +506,6 @@ void QGL2PaintEngineExPrivate::drawTexture(const QGLRect& dest, const QGLRect& s currentBrush = noBrush; shaderManager->setSrcPixelType(pattern ? QGLEngineShaderManager::PatternSrc : QGLEngineShaderManager::ImageSrc); - if (addOffset) { - addOffset = false; - matrixDirty = true; - } - if (snapToPixelGrid) { snapToPixelGrid = false; matrixDirty = true; @@ -535,27 +546,32 @@ void QGL2PaintEngineEx::beginNativePainting() glDisableVertexAttribArray(i); #ifndef QT_OPENGL_ES_2 - // be nice to people who mix OpenGL 1.x code with QPainter commands - // by setting modelview and projection matrices to mirror the GL 1 - // paint engine - const QTransform& mtx = state()->matrix; - - float mv_matrix[4][4] = + const QGLFormat &fmt = d->device->format(); + if (fmt.majorVersion() < 3 || (fmt.majorVersion() == 3 && fmt.minorVersion() < 1) + || fmt.profile() == QGLFormat::CompatibilityProfile) { - { 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()) } - }; + // be nice to people who mix OpenGL 1.x code with QPainter commands + // by setting modelview and projection matrices to mirror the GL 1 + // paint engine + const QTransform& mtx = state()->matrix; - const QSize sz = d->device->size(); + float mv_matrix[4][4] = + { + { 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(); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glOrtho(0, sz.width(), sz.height(), 0, -999999, 999999); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(0, sz.width(), sz.height(), 0, -999999, 999999); - glMatrixMode(GL_MODELVIEW); - glLoadMatrixf(&mv_matrix[0][0]); + glMatrixMode(GL_MODELVIEW); + glLoadMatrixf(&mv_matrix[0][0]); + } #else Q_UNUSED(ctx); #endif @@ -586,7 +602,9 @@ void QGL2PaintEngineExPrivate::resetGLState() 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() + // gl_Color, corresponding to vertex attribute 3, may have been changed + float color[] = { 1.0f, 1.0f, 1.0f, 1.0f }; + glVertexAttrib4fv(3, color); #endif } @@ -677,16 +695,6 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path) { transferMode(BrushDrawingMode); - const QOpenGL2PaintEngineState *s = q->state(); - const bool newAddOffset = !(s->renderHints & QPainter::Antialiasing) && - (qbrush_style(currentBrush) == Qt::SolidPattern) && - !multisamplingAlwaysEnabled; - - if (addOffset != newAddOffset) { - addOffset = newAddOffset; - matrixDirty = true; - } - if (snapToPixelGrid) { snapToPixelGrid = false; matrixDirty = true; @@ -874,6 +882,35 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path) // Tag it for later so that if the same path is drawn twice, it is assumed to be static and thus cachable path.makeCacheable(); + if (!device->format().stencil()) { + // If there is no stencil buffer, triangulate the path instead. + + QRectF bbox = path.controlPointRect(); + // If the path doesn't fit within these limits, it is possible that the triangulation will fail. + bool withinLimits = (bbox.left() > -0x8000 * inverseScale) + && (bbox.right() < 0x8000 * inverseScale) + && (bbox.top() > -0x8000 * inverseScale) + && (bbox.bottom() < 0x8000 * inverseScale); + if (withinLimits) { + QTriangleSet polys = qTriangulate(path, QTransform().scale(1 / inverseScale, 1 / inverseScale)); + + QVarLengthArray<float> vertices(polys.vertices.size()); + for (int i = 0; i < polys.vertices.size(); ++i) + vertices[i] = float(inverseScale * polys.vertices.at(i)); + + prepareForDraw(currentBrush.isOpaque()); + setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, vertices.constData()); + if (QGLExtensions::glExtensions() & QGLExtensions::ElementIndexUint) + glDrawElements(GL_TRIANGLES, polys.indices.size(), GL_UNSIGNED_INT, polys.indices.data()); + else + glDrawElements(GL_TRIANGLES, polys.indices.size(), GL_UNSIGNED_SHORT, polys.indices.data()); + } else { + // We can't handle big, concave painter paths with OpenGL without stencil buffer. + qWarning("Painter path exceeds +/-32767 pixels."); + } + return; + } + // The path is too complicated & needs the stencil technique vertexCoordinateArray.clear(); vertexCoordinateArray.addPath(path, inverseScale, false); @@ -1176,12 +1213,6 @@ void QGL2PaintEngineEx::stroke(const QVectorPath &path, const QPen &pen) void QGL2PaintEngineExPrivate::stroke(const QVectorPath &path, const QPen &pen) { const QOpenGL2PaintEngineState *s = q->state(); - const bool newAddOffset = !(s->renderHints & QPainter::Antialiasing) && !multisamplingAlwaysEnabled; - if (addOffset != newAddOffset) { - addOffset = newAddOffset; - matrixDirty = true; - } - if (snapToPixelGrid) { snapToPixelGrid = false; matrixDirty = true; @@ -1459,7 +1490,8 @@ void QGL2PaintEngineEx::drawTextItem(const QPointF &p, const QTextItem &textItem // don't try to cache huge fonts or vastly transformed fonts const qreal pixelSize = ti.fontEngine->fontDef.pixelSize; - if (pixelSize * pixelSize * qAbs(det) >= 64 * 64 || det < 0.25f || det > 4.f) + if (pixelSize * pixelSize * qAbs(det) >= QT_MAX_CACHED_GLYPH_SIZE * QT_MAX_CACHED_GLYPH_SIZE || + det < 0.25f || det > 4.f) drawCached = false; QFontEngineGlyphCache::Type glyphType = ti.fontEngine->glyphFormat >= 0 @@ -1522,6 +1554,14 @@ namespace { } +#if defined(Q_WS_WIN) +static bool fontSmoothingApproximately(qreal target) +{ + extern Q_GUI_EXPORT qreal qt_fontsmoothing_gamma; // qapplication_win.cpp + return (qAbs(qt_fontsmoothing_gamma - target) < 0.2); +} +#endif + // #define QT_OPENGL_DRAWCACHEDGLYPHS_INDEX_ARRAY_VBO void QGL2PaintEngineExPrivate::drawCachedGlyphs(QFontEngineGlyphCache::Type glyphType, @@ -1531,13 +1571,15 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(QFontEngineGlyphCache::Type glyp QOpenGL2PaintEngineState *s = q->state(); + void *cacheKey = const_cast<QGLContext *>(QGLContextPrivate::contextGroup(ctx)->context()); bool recreateVertexArrays = false; QGLTextureGlyphCache *cache = - (QGLTextureGlyphCache *) staticTextItem->fontEngine()->glyphCache(ctx, glyphType, QTransform()); + (QGLTextureGlyphCache *) staticTextItem->fontEngine()->glyphCache(cacheKey, glyphType, QTransform()); if (!cache || cache->cacheType() != glyphType || cache->context() == 0) { cache = new QGLTextureGlyphCache(ctx, glyphType, QTransform()); - staticTextItem->fontEngine()->setGlyphCache(ctx, cache); + staticTextItem->fontEngine()->setGlyphCache(cacheKey, cache); + cache->insert(ctx, cache); recreateVertexArrays = true; } @@ -1562,12 +1604,13 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(QFontEngineGlyphCache::Type glyp if (recreateVertexArrays) { cache->setPaintEnginePrivate(this); if (!cache->populate(staticTextItem->fontEngine(), staticTextItem->numGlyphs, - staticTextItem->glyphs, staticTextItem->glyphPositions)) { - // No space in cache. We need to clear the cache and try again + staticTextItem->glyphs, staticTextItem->glyphPositions)) { + // No space for glyphs in cache. We need to reset it and try again. cache->clear(); cache->populate(staticTextItem->fontEngine(), staticTextItem->numGlyphs, staticTextItem->glyphs, staticTextItem->glyphPositions); } + cache->fillInPendingGlyphs(); } if (cache->width() == 0 || cache->height() == 0) @@ -1611,15 +1654,24 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(QFontEngineGlyphCache::Type glyp } } - if (recreateVertexArrays) { vertexCoordinates->clear(); textureCoordinates->clear(); + bool supportsSubPixelPositions = staticTextItem->fontEngine()->supportsSubPixelPositions(); 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; + QFixed subPixelPosition; + if (supportsSubPixelPositions) + subPixelPosition = cache->subPixelPositionForX(staticTextItem->glyphPositions[i].x); + + QTextureGlyphCache::GlyphAndSubPixelPosition glyph(staticTextItem->glyphs[i], subPixelPosition); + + const QTextureGlyphCache::Coord &c = cache->coords[glyph]; + if (c.isNull()) + continue; + + int x = qFloor(staticTextItem->glyphPositions[i].x) + c.baseLineX - margin; + int y = qFloor(staticTextItem->glyphPositions[i].y) - 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)); @@ -1628,10 +1680,12 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(QFontEngineGlyphCache::Type glyp staticTextItem->userDataNeedsUpdate = false; } - if (elementIndices.size() < staticTextItem->numGlyphs*6) { + int numGlyphs = vertexCoordinates->vertexCount() / 4; + + if (elementIndices.size() < numGlyphs*6) { Q_ASSERT(elementIndices.size() % 6 == 0); int j = elementIndices.size() / 6 * 4; - while (j < staticTextItem->numGlyphs*4) { + while (j < numGlyphs*4) { elementIndices.append(j + 0); elementIndices.append(j + 0); elementIndices.append(j + 1); @@ -1659,10 +1713,6 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(QFontEngineGlyphCache::Type glyp setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, (GLfloat*)vertexCoordinates->data()); setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, (GLfloat*)textureCoordinates->data()); - if (addOffset) { - addOffset = false; - matrixDirty = true; - } if (!snapToPixelGrid) { snapToPixelGrid = true; matrixDirty = true; @@ -1724,9 +1774,9 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(QFontEngineGlyphCache::Type glyp updateTextureFilter(GL_TEXTURE_2D, GL_REPEAT, false); #if defined(QT_OPENGL_DRAWCACHEDGLYPHS_INDEX_ARRAY_VBO) - glDrawElements(GL_TRIANGLE_STRIP, 6 * staticTextItem->numGlyphs, GL_UNSIGNED_SHORT, 0); + glDrawElements(GL_TRIANGLE_STRIP, 6 * numGlyphs, GL_UNSIGNED_SHORT, 0); #else - glDrawElements(GL_TRIANGLE_STRIP, 6 * staticTextItem->numGlyphs, GL_UNSIGNED_SHORT, elementIndices.data()); + glDrawElements(GL_TRIANGLE_STRIP, 6 * numGlyphs, GL_UNSIGNED_SHORT, elementIndices.data()); #endif shaderManager->setMaskType(QGLEngineShaderManager::SubPixelMaskPass2); @@ -1750,7 +1800,6 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(QFontEngineGlyphCache::Type glyp shaderManager->setMaskType(QGLEngineShaderManager::PixelMask); prepareForDraw(false); // Text always causes src pixels to be transparent } - //### TODO: Gamma correction QGLTextureGlyphCache::FilterMode filterMode = (s->matrix.type() > QTransform::TxTranslate)?QGLTextureGlyphCache::Linear:QGLTextureGlyphCache::Nearest; if (lastMaskTextureUsed != cache->texture() || cache->filterMode() != filterMode) { @@ -1773,12 +1822,31 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(QFontEngineGlyphCache::Type glyp } } + bool srgbFrameBufferEnabled = false; + if (ctx->d_ptr->extension_flags & QGLExtensions::SRGBFrameBuffer) { +#if defined(Q_WS_MAC) + if (glyphType == QFontEngineGlyphCache::Raster_RGBMask) +#elif defined(Q_WS_WIN) + if (glyphType != QFontEngineGlyphCache::Raster_RGBMask || fontSmoothingApproximately(2.1)) +#else + if (false) +#endif + { + glEnable(FRAMEBUFFER_SRGB_EXT); + srgbFrameBufferEnabled = true; + } + } + #if defined(QT_OPENGL_DRAWCACHEDGLYPHS_INDEX_ARRAY_VBO) - glDrawElements(GL_TRIANGLE_STRIP, 6 * staticTextItem->numGlyphs, GL_UNSIGNED_SHORT, 0); + glDrawElements(GL_TRIANGLE_STRIP, 6 * numGlyphs, GL_UNSIGNED_SHORT, 0); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); #else - glDrawElements(GL_TRIANGLE_STRIP, 6 * staticTextItem->numGlyphs, GL_UNSIGNED_SHORT, elementIndices.data()); + glDrawElements(GL_TRIANGLE_STRIP, 6 * numGlyphs, GL_UNSIGNED_SHORT, elementIndices.data()); #endif + + if (srgbFrameBufferEnabled) + glDisable(FRAMEBUFFER_SRGB_EXT); + } void QGL2PaintEngineEx::drawPixmapFragments(const QPainter::PixmapFragment *fragments, int fragmentCount, const QPixmap &pixmap, @@ -1813,11 +1881,6 @@ void QGL2PaintEngineExPrivate::drawPixmapFragments(const QPainter::PixmapFragmen textureCoordinateArray.clear(); opacityArray.reset(); - if (addOffset) { - addOffset = false; - matrixDirty = true; - } - if (snapToPixelGrid) { snapToPixelGrid = false; matrixDirty = true; @@ -1955,7 +2018,8 @@ bool QGL2PaintEngineEx::begin(QPaintDevice *pdev) #if !defined(QT_OPENGL_ES_2) #if defined(Q_WS_WIN) - if (qt_cleartype_enabled) + if (qt_cleartype_enabled + && (fontSmoothingApproximately(1.0) || fontSmoothingApproximately(2.1))) #endif #if defined(Q_WS_MAC) if (qt_applefontsmoothing_enabled) @@ -2080,7 +2144,10 @@ void QGL2PaintEngineExPrivate::setScissor(const QRect &rect) { const int left = rect.left(); const int width = rect.width(); - const int bottom = height - (rect.top() + rect.height()); + int bottom = height - (rect.top() + rect.height()); + if (device->isFlipped()) { + bottom = rect.top(); + } const int height = rect.height(); glScissor(left, bottom, width, height); @@ -2114,10 +2181,6 @@ void QGL2PaintEngineExPrivate::writeClip(const QVectorPath &path, uint value) { transferMode(BrushDrawingMode); - if (addOffset) { - addOffset = false; - matrixDirty = true; - } if (snapToPixelGrid) { snapToPixelGrid = false; matrixDirty = true; diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h index bb9d2e3..f7ec5f5 100644 --- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h +++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h @@ -181,7 +181,6 @@ public: elementIndicesVBOId(0), opacityArray(0), snapToPixelGrid(false), - addOffset(false), nativePaintingActive(false), inverseScale(1), lastMaskTextureUsed(0) @@ -285,7 +284,6 @@ public: 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; diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp b/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp index 0ffc7af..c867d60 100644 --- a/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp +++ b/src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp @@ -41,6 +41,7 @@ #include "qtextureglyphcache_gl_p.h" #include "qpaintengineex_opengl2_p.h" +#include "private/qglengineshadersource_p.h" #if defined QT_OPENGL_ES_2 && !defined(QT_NO_EGL) #include "private/qeglcontext_p.h" @@ -54,68 +55,59 @@ extern Q_GUI_EXPORT bool qt_cleartype_enabled; QBasicAtomicInt qgltextureglyphcache_serial_number = Q_BASIC_ATOMIC_INITIALIZER(1); -QGLTextureGlyphCache::QGLTextureGlyphCache(QGLContext *context, QFontEngineGlyphCache::Type type, const QTransform &matrix) - : QImageTextureGlyphCache(type, matrix) +QGLTextureGlyphCache::QGLTextureGlyphCache(const QGLContext *context, QFontEngineGlyphCache::Type type, const QTransform &matrix) + : QImageTextureGlyphCache(type, matrix), QGLContextGroupResourceBase() , ctx(0) - , m_width(0) - , m_height(0) + , pex(0) + , m_blitProgram(0) , m_filterMode(Nearest) , m_serialNumber(qgltextureglyphcache_serial_number.fetchAndAddRelaxed(1)) { +#ifdef QT_GL_TEXTURE_GLYPH_CACHE_DEBUG + qDebug(" -> QGLTextureGlyphCache() %p for context %p.", this, ctx); +#endif setContext(context); -} - -void QGLTextureGlyphCache::setContext(QGLContext *context) -{ - ctx = context; - // 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*))); + m_vertexCoordinateArray[0] = -1.0f; + m_vertexCoordinateArray[1] = -1.0f; + m_vertexCoordinateArray[2] = 1.0f; + m_vertexCoordinateArray[3] = -1.0f; + m_vertexCoordinateArray[4] = 1.0f; + m_vertexCoordinateArray[5] = 1.0f; + m_vertexCoordinateArray[6] = -1.0f; + m_vertexCoordinateArray[7] = 1.0f; + + m_textureCoordinateArray[0] = 0.0f; + m_textureCoordinateArray[1] = 0.0f; + m_textureCoordinateArray[2] = 1.0f; + m_textureCoordinateArray[3] = 0.0f; + m_textureCoordinateArray[4] = 1.0f; + m_textureCoordinateArray[5] = 1.0f; + m_textureCoordinateArray[6] = 0.0f; + m_textureCoordinateArray[7] = 1.0f; } -void QGLTextureGlyphCache::clear() +QGLTextureGlyphCache::~QGLTextureGlyphCache() { - if (ctx) { - QGLShareContextScope scope(ctx); - - if (m_width || m_height) - glDeleteTextures(1, &m_texture); - - m_texture = 0; - m_width = 0; - m_height = 0; - m_w = 0; - m_h = 0; - m_cx = 0; - m_cy = 0; - m_currentRowHeight = 0; - coords.clear(); - } - +#ifdef QT_GL_TEXTURE_GLYPH_CACHE_DEBUG + qDebug(" -> ~QGLTextureGlyphCache() %p.", this); +#endif + delete m_blitProgram; } -QGLTextureGlyphCache::~QGLTextureGlyphCache() +void QGLTextureGlyphCache::setContext(const QGLContext *context) { - if (ctx) { - QGLShareContextScope scope(ctx); - - if (!ctx->d_ptr->workaround_brokenFBOReadBack) - glDeleteFramebuffers(1, &m_fbo); - } - - clear(); + ctx = context; + m_h = 0; } void QGLTextureGlyphCache::createTextureData(int width, int height) { + if (ctx == 0) { + qWarning("QGLTextureGlyphCache::createTextureData: Called with no context"); + return; + } + // 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. @@ -128,11 +120,12 @@ void QGLTextureGlyphCache::createTextureData(int width, int height) if (height < 16) height = 16; - glGenTextures(1, &m_texture); - glBindTexture(GL_TEXTURE_2D, m_texture); + QGLGlyphTexture *glyphTexture = m_textureResource.value(ctx); + glGenTextures(1, &glyphTexture->m_texture); + glBindTexture(GL_TEXTURE_2D, glyphTexture->m_texture); - m_width = width; - m_height = height; + glyphTexture->m_width = width; + glyphTexture->m_height = height; if (m_type == QFontEngineGlyphCache::Raster_RGBMask) { QVarLengthArray<uchar> data(width * height * 4); @@ -155,8 +148,14 @@ void QGLTextureGlyphCache::createTextureData(int width, int height) void QGLTextureGlyphCache::resizeTextureData(int width, int height) { - int oldWidth = m_width; - int oldHeight = m_height; + if (ctx == 0) { + qWarning("QGLTextureGlyphCache::resizeTextureData: Called with no context"); + return; + } + QGLGlyphTexture *glyphTexture = m_textureResource.value(ctx); + + int oldWidth = glyphTexture->m_width; + int oldHeight = glyphTexture->m_height; // Make the lower glyph texture size 16 x 16. if (width < 16) @@ -164,7 +163,7 @@ void QGLTextureGlyphCache::resizeTextureData(int width, int height) if (height < 16) height = 16; - GLuint oldTexture = m_texture; + GLuint oldTexture = glyphTexture->m_texture; createTextureData(width, height); if (ctx->d_ptr->workaround_brokenFBOReadBack) { @@ -178,7 +177,7 @@ void QGLTextureGlyphCache::resizeTextureData(int width, int height) // ### the QTextureGlyphCache API needs to be reworked to allow // ### resizeTextureData to fail - glBindFramebuffer(GL_FRAMEBUFFER_EXT, m_fbo); + glBindFramebuffer(GL_FRAMEBUFFER_EXT, glyphTexture->m_fbo); GLuint tmp_texture; glGenTextures(1, &tmp_texture); @@ -197,7 +196,8 @@ void QGLTextureGlyphCache::resizeTextureData(int width, int height) glActiveTexture(GL_TEXTURE0 + QT_IMAGE_TEXTURE_UNIT); glBindTexture(GL_TEXTURE_2D, oldTexture); - pex->transferMode(BrushDrawingMode); + if (pex != 0) + pex->transferMode(BrushDrawingMode); glDisable(GL_STENCIL_TEST); glDisable(GL_DEPTH_TEST); @@ -206,35 +206,62 @@ void QGLTextureGlyphCache::resizeTextureData(int width, int height) glViewport(0, 0, oldWidth, oldHeight); - GLfloat* vertexCoordinateArray = pex->staticVertexCoordinateArray; - vertexCoordinateArray[0] = -1.0f; - vertexCoordinateArray[1] = -1.0f; - vertexCoordinateArray[2] = 1.0f; - vertexCoordinateArray[3] = -1.0f; - vertexCoordinateArray[4] = 1.0f; - vertexCoordinateArray[5] = 1.0f; - vertexCoordinateArray[6] = -1.0f; - vertexCoordinateArray[7] = 1.0f; - - GLfloat* textureCoordinateArray = pex->staticTextureCoordinateArray; - textureCoordinateArray[0] = 0.0f; - textureCoordinateArray[1] = 0.0f; - textureCoordinateArray[2] = 1.0f; - textureCoordinateArray[3] = 0.0f; - textureCoordinateArray[4] = 1.0f; - textureCoordinateArray[5] = 1.0f; - textureCoordinateArray[6] = 0.0f; - textureCoordinateArray[7] = 1.0f; - - pex->setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, vertexCoordinateArray); - pex->setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, textureCoordinateArray); - - pex->shaderManager->useBlitProgram(); - pex->shaderManager->blitProgram()->setUniformValue("imageTexture", QT_IMAGE_TEXTURE_UNIT); + QGLShaderProgram *blitProgram = 0; + if (pex == 0) { + if (m_blitProgram == 0) { + m_blitProgram = new QGLShaderProgram(ctx); + + { + QString source; + source.append(QLatin1String(qglslMainWithTexCoordsVertexShader)); + source.append(QLatin1String(qglslUntransformedPositionVertexShader)); + + QGLShader *vertexShader = new QGLShader(QGLShader::Vertex, m_blitProgram); + vertexShader->compileSourceCode(source); + + m_blitProgram->addShader(vertexShader); + } + + { + QString source; + source.append(QLatin1String(qglslMainFragmentShader)); + source.append(QLatin1String(qglslImageSrcFragmentShader)); + + QGLShader *fragmentShader = new QGLShader(QGLShader::Fragment, m_blitProgram); + fragmentShader->compileSourceCode(source); + + m_blitProgram->addShader(fragmentShader); + } + + m_blitProgram->bindAttributeLocation("vertexCoordsArray", QT_VERTEX_COORDS_ATTR); + m_blitProgram->bindAttributeLocation("textureCoordArray", QT_TEXTURE_COORDS_ATTR); + + m_blitProgram->link(); + } + + glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, m_vertexCoordinateArray); + glVertexAttribPointer(QT_TEXTURE_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, m_textureCoordinateArray); + + m_blitProgram->bind(); + m_blitProgram->enableAttributeArray(int(QT_VERTEX_COORDS_ATTR)); + m_blitProgram->enableAttributeArray(int(QT_TEXTURE_COORDS_ATTR)); + m_blitProgram->disableAttributeArray(int(QT_OPACITY_ATTR)); + + blitProgram = m_blitProgram; + + } else { + pex->setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, m_vertexCoordinateArray); + pex->setVertexAttributePointer(QT_TEXTURE_COORDS_ATTR, m_textureCoordinateArray); + + pex->shaderManager->useBlitProgram(); + blitProgram = pex->shaderManager->blitProgram(); + } + + blitProgram->setUniformValue("imageTexture", QT_IMAGE_TEXTURE_UNIT); glDrawArrays(GL_TRIANGLE_FAN, 0, 4); - glBindTexture(GL_TEXTURE_2D, m_texture); + glBindTexture(GL_TEXTURE_2D, glyphTexture->m_texture); glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, oldWidth, oldHeight); @@ -245,16 +272,24 @@ void QGLTextureGlyphCache::resizeTextureData(int width, int height) glBindFramebuffer(GL_FRAMEBUFFER_EXT, ctx->d_ptr->current_fbo); - glViewport(0, 0, pex->width, pex->height); - pex->updateClipScissorTest(); + if (pex != 0) { + glViewport(0, 0, pex->width, pex->height); + pex->updateClipScissorTest(); + } } -void QGLTextureGlyphCache::fillTexture(const Coord &c, glyph_t glyph) +void QGLTextureGlyphCache::fillTexture(const Coord &c, glyph_t glyph, QFixed subPixelPosition) { + if (ctx == 0) { + qWarning("QGLTextureGlyphCache::fillTexture: Called with no context"); + return; + } + + QGLGlyphTexture *glyphTexture = m_textureResource.value(ctx); if (ctx->d_ptr->workaround_brokenFBOReadBack) { - QImageTextureGlyphCache::fillTexture(c, glyph); + QImageTextureGlyphCache::fillTexture(c, glyph, subPixelPosition); - glBindTexture(GL_TEXTURE_2D, m_texture); + glBindTexture(GL_TEXTURE_2D, glyphTexture->m_texture); const QImage &texture = image(); const uchar *bits = texture.constBits(); bits += c.y * texture.bytesPerLine() + c.x; @@ -262,11 +297,10 @@ void QGLTextureGlyphCache::fillTexture(const Coord &c, glyph_t glyph) 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); + QImage mask = textureMapForGlyph(glyph, subPixelPosition); const int maskWidth = mask.width(); const int maskHeight = mask.height(); @@ -292,7 +326,7 @@ void QGLTextureGlyphCache::fillTexture(const Coord &c, glyph_t glyph) } } - glBindTexture(GL_TEXTURE_2D, m_texture); + glBindTexture(GL_TEXTURE_2D, glyphTexture->m_texture); if (mask.format() == QImage::Format_RGB32) { glTexSubImage2D(GL_TEXTURE_2D, 0, c.x, c.y, maskWidth, maskHeight, GL_BGRA, GL_UNSIGNED_BYTE, mask.bits()); } else { @@ -305,8 +339,19 @@ void QGLTextureGlyphCache::fillTexture(const Coord &c, glyph_t glyph) // by converting it to a format with four bytes per pixel. Another is to copy one line at a // time. - for (int i = 0; i < maskHeight; ++i) - glTexSubImage2D(GL_TEXTURE_2D, 0, c.x, c.y + i, qMin(c.w, maskWidth), 1, GL_ALPHA, GL_UNSIGNED_BYTE, mask.scanLine(i)); + if (!ctx->d_ptr->workaround_brokenAlphaTexSubImage_init) { + // don't know which driver versions exhibit this bug, so be conservative for now + const QByteArray versionString(reinterpret_cast<const char*>(glGetString(GL_VERSION))); + ctx->d_ptr->workaround_brokenAlphaTexSubImage = versionString.indexOf("NVIDIA") >= 0; + ctx->d_ptr->workaround_brokenAlphaTexSubImage_init = true; + } + + if (ctx->d_ptr->workaround_brokenAlphaTexSubImage) { + for (int i = 0; i < maskHeight; ++i) + glTexSubImage2D(GL_TEXTURE_2D, 0, c.x, c.y + i, maskWidth, 1, GL_ALPHA, GL_UNSIGNED_BYTE, mask.scanLine(i)); + } else { + glTexSubImage2D(GL_TEXTURE_2D, 0, c.x, c.y, maskWidth, maskHeight, GL_ALPHA, GL_UNSIGNED_BYTE, mask.bits()); + } } } @@ -317,14 +362,35 @@ int QGLTextureGlyphCache::glyphPadding() const int QGLTextureGlyphCache::maxTextureWidth() const { - return ctx->d_ptr->maxTextureSize(); + if (ctx == 0) + return QImageTextureGlyphCache::maxTextureWidth(); + else + return ctx->d_ptr->maxTextureSize(); } int QGLTextureGlyphCache::maxTextureHeight() const { + if (ctx == 0) + return QImageTextureGlyphCache::maxTextureHeight(); + if (ctx->d_ptr->workaround_brokenTexSubImage) return qMin(1024, ctx->d_ptr->maxTextureSize()); else return ctx->d_ptr->maxTextureSize(); } + +void QGLTextureGlyphCache::clear() +{ + if (ctx != 0) { + m_textureResource.cleanup(ctx); + + m_w = 0; + m_h = 0; + m_cx = 0; + m_cy = 0; + m_currentRowHeight = 0; + coords.clear(); + } +} + QT_END_NAMESPACE diff --git a/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h b/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h index 2eb4e65..133289e 100644 --- a/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h +++ b/src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h @@ -57,32 +57,82 @@ #include <private/qgl_p.h> #include <qglshaderprogram.h> +// #define QT_GL_TEXTURE_GLYPH_CACHE_DEBUG QT_BEGIN_NAMESPACE class QGL2PaintEngineExPrivate; -class Q_OPENGL_EXPORT QGLTextureGlyphCache : public QObject, public QImageTextureGlyphCache +struct QGLGlyphTexture +{ + QGLGlyphTexture(const QGLContext *ctx) + : m_width(0) + , m_height(0) + { + if (ctx && !ctx->d_ptr->workaround_brokenFBOReadBack) + glGenFramebuffers(1, &m_fbo); + +#ifdef QT_GL_TEXTURE_GLYPH_CACHE_DEBUG + qDebug(" -> QGLGlyphTexture() %p for context %p.", this, ctx); +#endif + } + + ~QGLGlyphTexture() { + const QGLContext *ctx = QGLContext::currentContext(); +#ifdef QT_GL_TEXTURE_GLYPH_CACHE_DEBUG + qDebug("~QGLGlyphTexture() %p for context %p.", this, ctx); +#endif + // At this point, the context group is made current, so it's safe to + // release resources without a makeCurrent() call + if (ctx) { + if (!ctx->d_ptr->workaround_brokenFBOReadBack) + glDeleteFramebuffers(1, &m_fbo); + if (m_width || m_height) + glDeleteTextures(1, &m_texture); + } + } + + GLuint m_texture; + GLuint m_fbo; + int m_width; + int m_height; +}; + +class Q_OPENGL_EXPORT QGLTextureGlyphCache : public QImageTextureGlyphCache, public QGLContextGroupResourceBase { - Q_OBJECT public: - QGLTextureGlyphCache(QGLContext *context, QFontEngineGlyphCache::Type type, const QTransform &matrix); + QGLTextureGlyphCache(const QGLContext *context, QFontEngineGlyphCache::Type type, const QTransform &matrix); ~QGLTextureGlyphCache(); virtual void createTextureData(int width, int height); virtual void resizeTextureData(int width, int height); - virtual void fillTexture(const Coord &c, glyph_t glyph); + virtual void fillTexture(const Coord &c, glyph_t glyph, QFixed subPixelPosition); virtual int glyphPadding() const; virtual int maxTextureWidth() const; virtual int maxTextureHeight() const; - inline GLuint texture() const { return m_texture; } + inline GLuint texture() const { + QGLTextureGlyphCache *that = const_cast<QGLTextureGlyphCache *>(this); + QGLGlyphTexture *glyphTexture = that->m_textureResource.value(ctx); + return glyphTexture ? glyphTexture->m_texture : 0; + } - inline int width() const { return m_width; } - inline int height() const { return m_height; } + inline int width() const { + QGLTextureGlyphCache *that = const_cast<QGLTextureGlyphCache *>(this); + QGLGlyphTexture *glyphTexture = that->m_textureResource.value(ctx); + return glyphTexture ? glyphTexture->m_width : 0; + } + inline int height() const { + QGLTextureGlyphCache *that = const_cast<QGLTextureGlyphCache *>(this); + QGLGlyphTexture *glyphTexture = that->m_textureResource.value(ctx); + return glyphTexture ? glyphTexture->m_height : 0; + } inline void setPaintEnginePrivate(QGL2PaintEngineExPrivate *p) { pex = p; } + void setContext(const QGLContext *context); + inline const QGLContext *context() const { return ctx; } + inline int serialNumber() const { return m_serialNumber; } enum FilterMode { @@ -92,56 +142,21 @@ public: FilterMode filterMode() const { return m_filterMode; } void setFilterMode(FilterMode m) { m_filterMode = m; } - void setContext(QGLContext *context); - QGLContext *context() const { return ctx; } - -public Q_SLOTS: - void contextDestroyed(const QGLContext *context) { - if (context == ctx) { - const QGLContext *nextCtx = qt_gl_transfer_context(ctx); - if (!nextCtx) { - // the context may not be current, so we cannot directly - // destroy the fbo and texture here, but since the context - // is about to be destroyed, the GL server will do the - // clean up for us anyway. We reset everything, so that the - // glyph cache object can be reused later by setting a new - // context on it. - m_fbo = 0; - m_texture = 0; - ctx = 0; - m_width = 0; - m_height = 0; - m_w = 0; - m_h = 0; - m_cx = 0; - m_cy = 0; - m_currentRowHeight = 0; - coords.clear(); - } else { - // since the context holding the texture is shared, and - // about to be destroyed, we have to transfer ownership - // of the texture to one of the share contexts - ctx = const_cast<QGLContext *>(nextCtx); - } - } - } - void clear(); + void freeResource(void *) { ctx = 0; } + private: - QGLContext *ctx; + QGLContextGroupResource<QGLGlyphTexture> m_textureResource; + const QGLContext *ctx; QGL2PaintEngineExPrivate *pex; + QGLShaderProgram *m_blitProgram; + FilterMode m_filterMode; - GLuint m_texture; - GLuint m_fbo; - - int m_width; - int m_height; - - QGLShaderProgram *m_program; + GLfloat m_vertexCoordinateArray[8]; + GLfloat m_textureCoordinateArray[8]; - FilterMode m_filterMode; int m_serialNumber; }; |