diff options
Diffstat (limited to 'src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp')
| -rw-r--r-- | src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp index 1dcb773..3ddc15a 100644 --- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp +++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp @@ -1212,6 +1212,9 @@ void QGL2PaintEngineExPrivate::stroke(const QVectorPath &path, const QPen &pen) stroker.process(dashStroke, pen, clip); } + if (!stroker.vertexCount()) + return; + if (opaque) { prepareForDraw(opaque); setVertexAttributePointer(QT_VERTEX_COORDS_ATTR, stroker.vertices()); @@ -1479,6 +1482,8 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(QFontEngineGlyphCache::Type glyp if (!cache || cache->cacheType() != glyphType) { cache = new QGLTextureGlyphCache(ctx, glyphType, QTransform()); staticTextItem->fontEngine()->setGlyphCache(ctx, cache); + } else if (cache->context() == 0) { // Old context has been destroyed, new context has same ptr value + cache->setContext(ctx); } bool recreateVertexArrays = false; @@ -1494,8 +1499,13 @@ void QGL2PaintEngineExPrivate::drawCachedGlyphs(QFontEngineGlyphCache::Type glyp // cache so this text is performed before we test if the cache size has changed. if (recreateVertexArrays) { cache->setPaintEnginePrivate(this); - cache->populate(staticTextItem->fontEngine(), staticTextItem->numGlyphs, - staticTextItem->glyphs, staticTextItem->glyphPositions); + if (!cache->populate(staticTextItem->fontEngine(), staticTextItem->numGlyphs, + staticTextItem->glyphs, staticTextItem->glyphPositions)) { + // No space in cache. We need to clear the cache and try again + cache->clear(); + cache->populate(staticTextItem->fontEngine(), staticTextItem->numGlyphs, + staticTextItem->glyphs, staticTextItem->glyphPositions); + } } if (cache->width() == 0 || cache->height() == 0) |