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-rw-r--r--src/opengl/gl2paintengineex/qgl2pexvertexarray.cpp65
-rw-r--r--src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h10
-rw-r--r--src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp132
-rw-r--r--src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h12
-rw-r--r--src/opengl/gl2paintengineex/qtriangulatingstroker.cpp1
-rw-r--r--src/opengl/qgl.cpp22
6 files changed, 171 insertions, 71 deletions
diff --git a/src/opengl/gl2paintengineex/qgl2pexvertexarray.cpp b/src/opengl/gl2paintengineex/qgl2pexvertexarray.cpp
index 1fe3999..ee1a797 100644
--- a/src/opengl/gl2paintengineex/qgl2pexvertexarray.cpp
+++ b/src/opengl/gl2paintengineex/qgl2pexvertexarray.cpp
@@ -48,7 +48,7 @@ QT_BEGIN_NAMESPACE
void QGL2PEXVertexArray::clear()
{
vertexArray.reset();
- vertexArrayStops.clear();
+ vertexArrayStops.reset();
boundingRectDirty = true;
}
@@ -101,7 +101,7 @@ void QGL2PEXVertexArray::addPath(const QVectorPath &path, GLfloat curveInverseSc
boundingRectDirty = false;
}
- if (!outline)
+ if (!outline && !path.isConvex())
addCentroid(path, 0);
int lastMoveTo = vertexArray.size();
@@ -120,15 +120,14 @@ void QGL2PEXVertexArray::addPath(const QVectorPath &path, GLfloat curveInverseSc
// qDebug("QVectorPath has element types");
for (int i=1; i<path.elementCount(); ++i) {
- const QPainterPath::ElementType elementType = elements[i];
- switch (elementType) {
+ switch (elements[i]) {
case QPainterPath::MoveToElement:
if (!outline)
addClosingLine(lastMoveTo);
// qDebug("element[%d] is a MoveToElement", i);
- vertexArrayStops.append(vertexArray.size());
+ vertexArrayStops.add(vertexArray.size());
if (!outline) {
- addCentroid(path, i);
+ if (!path.isConvex()) addCentroid(path, i);
lastMoveTo = vertexArray.size();
}
lineToArray(points[i].x(), points[i].y()); // Add the moveTo as a new vertex
@@ -137,11 +136,22 @@ void QGL2PEXVertexArray::addPath(const QVectorPath &path, GLfloat curveInverseSc
// qDebug("element[%d] is a LineToElement", i);
lineToArray(points[i].x(), points[i].y());
break;
- case QPainterPath::CurveToElement:
-// qDebug("element[%d] is a CurveToElement", i);
- curveToArray(points[i], points[i+1], points[i+2], curveInverseScale);
- i+=2;
- break;
+ case QPainterPath::CurveToElement: {
+ QBezier b = QBezier::fromPoints(*(((const QPointF *) points) + i - 1),
+ points[i],
+ points[i+1],
+ points[i+2]);
+ QRectF bounds = b.bounds();
+ // 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);
+ for (int t=0; t<threshold; ++t) {
+ QPointF pt = b.pointAt(t * one_over_threshold_minus_1);
+ lineToArray(pt.x(), pt.y());
+ }
+ i += 2;
+ break; }
default:
break;
}
@@ -150,7 +160,7 @@ void QGL2PEXVertexArray::addPath(const QVectorPath &path, GLfloat curveInverseSc
if (!outline)
addClosingLine(lastMoveTo);
- vertexArrayStops.append(vertexArray.size());
+ vertexArrayStops.add(vertexArray.size());
}
void QGL2PEXVertexArray::lineToArray(const GLfloat x, const GLfloat y)
@@ -167,35 +177,4 @@ void QGL2PEXVertexArray::lineToArray(const GLfloat x, const GLfloat y)
minY = y;
}
-void QGL2PEXVertexArray::curveToArray(const QGLPoint &cp1, const QGLPoint &cp2, const QGLPoint &ep, GLfloat inverseScale)
-{
- qreal inverseScaleHalf = inverseScale / 2;
-
- QBezier beziers[32];
- beziers[0] = QBezier::fromPoints(vertexArray.last(), cp1, cp2, ep);
- QBezier *b = beziers;
- while (b >= beziers) {
- // check if we can pop the top bezier curve from the stack
- qreal l = qAbs(b->x4 - b->x1) + qAbs(b->y4 - b->y1);
- qreal d;
- if (l > inverseScale) {
- d = qAbs( (b->x4 - b->x1)*(b->y1 - b->y2) - (b->y4 - b->y1)*(b->x1 - b->x2) )
- + qAbs( (b->x4 - b->x1)*(b->y1 - b->y3) - (b->y4 - b->y1)*(b->x1 - b->x3) );
- d /= l;
- } else {
- d = qAbs(b->x1 - b->x2) + qAbs(b->y1 - b->y2) +
- qAbs(b->x1 - b->x3) + qAbs(b->y1 - b->y3);
- }
- if (d < inverseScaleHalf || b == beziers + 31) {
- // good enough, we pop it off and add the endpoint
- lineToArray(b->x4, b->y4);
- --b;
- } else {
- // split, second half of the polygon goes lower into the stack
- b->split(b+1, b);
- ++b;
- }
- }
-}
-
QT_END_NAMESPACE
diff --git a/src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h b/src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h
index 719904f..98eaa91 100644
--- a/src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h
+++ b/src/opengl/gl2paintengineex/qgl2pexvertexarray_p.h
@@ -108,23 +108,23 @@ public:
void clear();
QGLPoint* data() {return vertexArray.data();}
- QVector<int>& stops() {return vertexArrayStops;}
+ int *stops() const { return vertexArrayStops.data(); }
+ int stopCount() const { return vertexArrayStops.size(); }
QGLRect boundingRect() const;
+ int vertexCount() const { return vertexArray.size(); }
+
void lineToArray(const GLfloat x, const GLfloat y);
private:
QDataBuffer<QGLPoint> vertexArray;
- QVector<int> vertexArrayStops;
+ QDataBuffer<int> vertexArrayStops;
GLfloat maxX;
GLfloat maxY;
GLfloat minX;
GLfloat minY;
bool boundingRectDirty;
-
- inline void curveToArray(const QGLPoint &cp1, const QGLPoint &cp2, const QGLPoint &ep, GLfloat inverseScale);
-
void addClosingLine(int index);
void addCentroid(const QVectorPath &path, int subPathIndex);
};
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
index 07432c6..3fce384 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
@@ -62,6 +62,8 @@
and use the correct program when we really need it.
*/
+// #define QT_OPENGL_CACHE_AS_VBOS
+
#include "qpaintengineex_opengl2_p.h"
#include <string.h> //for memcpy
@@ -344,6 +346,13 @@ extern QImage qt_imageForBrush(int brushStyle, bool invert);
QGL2PaintEngineExPrivate::~QGL2PaintEngineExPrivate()
{
delete shaderManager;
+
+ while (pathCaches.size()) {
+ QVectorPath::CacheEntry *e = *(pathCaches.constBegin());
+ e->cleanup(e->engine, e->data);
+ e->data = 0;
+ e->engine = 0;
+ }
}
void QGL2PaintEngineExPrivate::updateTextureFilter(GLenum target, GLenum wrapMode, bool smoothPixmapTransform, GLuint id)
@@ -846,6 +855,30 @@ void QGL2PaintEngineExPrivate::transferMode(EngineMode newMode)
mode = newMode;
}
+struct QGL2PEVectorPathCache
+{
+#ifdef QT_OPENGL_CACHE_AS_VBOS
+ GLuint vbo;
+#else
+ float *vertices;
+#endif
+ int vertexCount;
+ GLenum primitiveType;
+ qreal iscale;
+};
+
+void qopengl2paintengine_cleanup_vectorpath(QPaintEngineEx *engine, void *data)
+{
+ QGL2PEVectorPathCache *c = (QGL2PEVectorPathCache *) data;
+#ifdef QT_OPENGL_CACHE_AS_VBOS
+ QGL2PaintEngineExPrivate *d = QGL2PaintEngineExPrivate::getData((QGL2PaintEngineEx *) engine);
+ d->unusedVBOSToClean << c->vbo;
+#else
+ qFree(c->vertices);
+#endif
+ delete c;
+}
+
// Assumes everything is configured for the brush you want to use
void QGL2PaintEngineExPrivate::fill(const QVectorPath& path)
{
@@ -863,10 +896,74 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path)
prepareForDraw(currentBrush->isOpaque());
composite(rect);
} else if (path.isConvex()) {
- vertexCoordinateArray.clear();
- vertexCoordinateArray.addPath(path, inverseScale, false);
- prepareForDraw(currentBrush->isOpaque());
- drawVertexArrays(vertexCoordinateArray, GL_TRIANGLE_FAN);
+
+ if (path.isCacheable()) {
+ QVectorPath::CacheEntry *data = path.lookupCacheData(q);
+ QGL2PEVectorPathCache *cache;
+
+ 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);
+ cache->vbo = 0;
+#else
+ qFree(cache->vertices);
+#endif
+ cache->vertexCount = 0;
+ }
+ }
+ } else {
+ cache = new QGL2PEVectorPathCache;
+ cache->vertexCount = 0;
+ data = const_cast<QVectorPath &>(path).addCacheData(q, cache, qopengl2paintengine_cleanup_vectorpath);
+ }
+
+ // Flatten the path at the current scale factor and fill it into the cache struct.
+ if (!cache->vertexCount) {
+ vertexCoordinateArray.clear();
+ vertexCoordinateArray.addPath(path, inverseScale, false);
+ int vertexCount = vertexCoordinateArray.vertexCount();
+ int floatSizeInBytes = vertexCount * 2 * sizeof(float);
+ cache->vertexCount = vertexCount;
+ 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);
+#else
+ cache->vertices = (float *) qMalloc(floatSizeInBytes);
+ memcpy(cache->vertices, vertexCoordinateArray.data(), floatSizeInBytes);
+#endif
+ }
+
+ prepareForDraw(currentBrush->isOpaque());
+ glEnableVertexAttribArray(QT_VERTEX_COORDS_ATTR);
+#ifdef QT_OPENGL_CACHE_AS_VBOS
+ glBindBuffer(GL_ARRAY_BUFFER, cache->vbo);
+ glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, false, 0, 0);
+#else
+ glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, false, 0, cache->vertices);
+#endif
+ glDrawArrays(cache->primitiveType, 0, cache->vertexCount);
+
+ } 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();
+ vertexCoordinateArray.addPath(path, inverseScale, false);
+ prepareForDraw(currentBrush->isOpaque());
+ drawVertexArrays(vertexCoordinateArray, GL_TRIANGLE_FAN);
+ }
+
} else {
// The path is too complicated & needs the stencil technique
vertexCoordinateArray.clear();
@@ -908,7 +1005,8 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path)
void QGL2PaintEngineExPrivate::fillStencilWithVertexArray(const float *data,
int count,
- const QVector<int> *stops,
+ int *stops,
+ int stopCount,
const QGLRect &bounds,
StencilFillMode mode)
{
@@ -966,7 +1064,7 @@ void QGL2PaintEngineExPrivate::fillStencilWithVertexArray(const float *data,
// Dec. for back-facing "holes"
glStencilOpSeparate(GL_BACK, GL_KEEP, GL_DECR_WRAP, GL_DECR_WRAP);
glStencilMask(~GL_STENCIL_HIGH_BIT);
- drawVertexArrays(data, stops, GL_TRIANGLE_FAN);
+ drawVertexArrays(data, stops, stopCount, GL_TRIANGLE_FAN);
if (q->state()->clipTestEnabled) {
// Clear high bit of stencil outside of path
@@ -978,7 +1076,7 @@ void QGL2PaintEngineExPrivate::fillStencilWithVertexArray(const float *data,
} else if (mode == OddEvenFillMode) {
glStencilMask(GL_STENCIL_HIGH_BIT);
glStencilOp(GL_KEEP, GL_KEEP, GL_INVERT); // Simply invert the stencil bit
- drawVertexArrays(data, stops, GL_TRIANGLE_FAN);
+ drawVertexArrays(data, stops, stopCount, GL_TRIANGLE_FAN);
} else { // TriStripStrokeFillMode
Q_ASSERT(count && !stops); // tristrips generated directly, so no vertexArray or stops
@@ -1137,7 +1235,7 @@ void QGL2PaintEngineExPrivate::composite(const QGLRect& boundingRect)
}
// Draws the vertex array as a set of <vertexArrayStops.size()> triangle fans.
-void QGL2PaintEngineExPrivate::drawVertexArrays(const float *data, const QVector<int> *stops,
+void QGL2PaintEngineExPrivate::drawVertexArrays(const float *data, int *stops, int stopCount,
GLenum primitive)
{
// Now setup the pointer to the vertex array:
@@ -1145,7 +1243,8 @@ void QGL2PaintEngineExPrivate::drawVertexArrays(const float *data, const QVector
glVertexAttribPointer(QT_VERTEX_COORDS_ATTR, 2, GL_FLOAT, GL_FALSE, 0, data);
int previousStop = 0;
- foreach(int stop, *stops) {
+ for (int i=0; i<stopCount; ++i) {
+ int stop = stops[i];
/*
qDebug("Drawing triangle fan for vertecies %d -> %d:", previousStop, stop-1);
for (int i=previousStop; i<stop; ++i)
@@ -1304,7 +1403,7 @@ void QGL2PaintEngineEx::stroke(const QVectorPath &path, const QPen &pen)
QRectF bounds = path.controlPointRect().adjusted(-extra, -extra, extra, extra);
d->fillStencilWithVertexArray(d->stroker.vertices(), d->stroker.vertexCount() / 2,
- 0, bounds, QGL2PaintEngineExPrivate::TriStripStrokeFillMode);
+ 0, 0, bounds, QGL2PaintEngineExPrivate::TriStripStrokeFillMode);
glStencilOp(GL_KEEP, GL_REPLACE, GL_REPLACE);
@@ -1452,7 +1551,8 @@ void QGL2PaintEngineEx::drawTextItem(const QPointF &p, const QTextItem &textItem
drawCached = false;
// don't try to cache huge fonts
- if (ti.fontEngine->fontDef.pixelSize * qSqrt(s->matrix.determinant()) >= 64)
+ const qreal pixelSize = ti.fontEngine->fontDef.pixelSize;
+ if (pixelSize * pixelSize * qAbs(s->matrix.determinant()) >= 64 * 64)
drawCached = false;
QFontEngineGlyphCache::Type glyphType = ti.fontEngine->glyphFormat >= 0
@@ -1753,7 +1853,8 @@ bool QGL2PaintEngineEx::begin(QPaintDevice *pdev)
d->device->beginPaint();
#if !defined(QT_OPENGL_ES_2)
- bool success = qt_resolve_version_2_0_functions(d->ctx);
+ bool success = qt_resolve_version_2_0_functions(d->ctx)
+ && qt_resolve_buffer_extensions(d->ctx);
Q_ASSERT(success);
Q_UNUSED(success);
#endif
@@ -1814,6 +1915,13 @@ bool QGL2PaintEngineEx::end()
delete d->shaderManager;
d->shaderManager = 0;
+#ifdef QT_OPENGL_CACHE_AS_VBOS
+ if (!d->unusedVBOSToClean.isEmpty()) {
+ glDeleteBuffers(d->unusedVBOSToClean.size(), d->unusedVBOSToClean.constData());
+ d->unusedVBOSToClean.clear();
+ }
+#endif
+
return false;
}
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
index 9720723..0084476 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2_p.h
@@ -195,18 +195,18 @@ public:
void drawTexture(const QGLRect& dest, const QGLRect& src, const QSize &textureSize, bool opaque, bool pattern = false);
void drawCachedGlyphs(const QPointF &p, QFontEngineGlyphCache::Type glyphType, const QTextItemInt &ti);
- void drawVertexArrays(const float *data, const QVector<int> *stops, GLenum primitive);
+ void drawVertexArrays(const float *data, int *stops, int stopCount, GLenum primitive);
void drawVertexArrays(QGL2PEXVertexArray &vertexArray, GLenum primitive) {
- drawVertexArrays((const float *) vertexArray.data(), &vertexArray.stops(), primitive);
+ drawVertexArrays((const float *) vertexArray.data(), vertexArray.stops(), vertexArray.stopCount(), primitive);
}
// ^ draws whatever is in the vertex array
void composite(const QGLRect& boundingRect);
// ^ Composites the bounding rect onto dest buffer
- void fillStencilWithVertexArray(const float *data, int count, const QVector<int> *stops, const QGLRect &bounds, StencilFillMode mode);
+ void fillStencilWithVertexArray(const float *data, int count, int *stops, int stopCount, const QGLRect &bounds, StencilFillMode mode);
void fillStencilWithVertexArray(QGL2PEXVertexArray& vertexArray, bool useWindingFill) {
- fillStencilWithVertexArray((const float *) vertexArray.data(), 0, &vertexArray.stops(),
+ fillStencilWithVertexArray((const float *) vertexArray.data(), 0, vertexArray.stops(), vertexArray.stopCount(),
vertexArray.boundingRect(),
useWindingFill ? WindingFillMode : OddEvenFillMode);
}
@@ -221,6 +221,7 @@ public:
void restoreDepthRangeForRenderText();
static QGLEngineShaderManager* shaderManagerForEngine(QGL2PaintEngineEx *engine) { return engine->d_func()->shaderManager; }
+ static QGL2PaintEngineExPrivate *getData(QGL2PaintEngineEx *engine) { return engine->d_func(); }
QGL2PaintEngineEx* q;
QGLPaintDevice* device;
@@ -294,6 +295,9 @@ public:
QScopedPointer<QPixmapFilter> fastBlurFilter;
QScopedPointer<QPixmapFilter> dropShadowFilter;
QScopedPointer<QPixmapFilter> fastDropShadowFilter;
+
+ QSet<QVectorPath::CacheEntry *> pathCaches;
+ QVector<GLuint> unusedVBOSToClean;
};
QT_END_NAMESPACE
diff --git a/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp b/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp
index c78f73f..6082f49 100644
--- a/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp
+++ b/src/opengl/gl2paintengineex/qtriangulatingstroker.cpp
@@ -313,6 +313,7 @@ void QTriangulatingStroker::join(const qreal *pts)
switch (m_join_style) {
case Qt::BevelJoin:
break;
+ case Qt::SvgMiterJoin:
case Qt::MiterJoin: {
// Find out on which side the join should be.
int count = m_vertices.size();
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp
index d5ca218..5ada125 100644
--- a/src/opengl/qgl.cpp
+++ b/src/opengl/qgl.cpp
@@ -2277,13 +2277,21 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G
#ifdef QGL_BIND_TEXTURE_DEBUG
printf(" - flipping bits over y (%d ms)\n", time.elapsed());
#endif
- int ipl = img.bytesPerLine() / 4;
- int h = img.height();
- for (int y=0; y<h/2; ++y) {
- int *a = (int *) img.scanLine(y);
- int *b = (int *) img.scanLine(h - y - 1);
- for (int x=0; x<ipl; ++x)
- qSwap(a[x], b[x]);
+ if (img.isDetached()) {
+ int ipl = img.bytesPerLine() / 4;
+ int h = img.height();
+ for (int y=0; y<h/2; ++y) {
+ int *a = (int *) img.scanLine(y);
+ int *b = (int *) img.scanLine(h - y - 1);
+ for (int x=0; x<ipl; ++x)
+ qSwap(a[x], b[x]);
+ }
+ } else {
+ // Create a new image and copy across. If we use the
+ // above in-place code then a full copy of the image is
+ // made before the lines are swapped, which processes the
+ // data twice. This version should only do it once.
+ img = img.mirrored();
}
}
generated by cgit v0.12 at 2024-10-23 03:35:32 (GMT)