diff options
| -rw-r--r-- | src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp | 39 |
1 files changed, 21 insertions, 18 deletions
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp index 8fa8171..f9c41b1 100644 --- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp +++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp @@ -884,6 +884,8 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path) QVectorPath::CacheEntry *data = path.lookupCacheData(q); QGL2PEVectorPathCache *cache; + bool updateCache = false; + if (data) { cache = (QGL2PEVectorPathCache *) data->data; // Check if scale factor is exceeded for curved paths and generate curves if so... @@ -898,23 +900,23 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path) qFree(cache->vertices); Q_ASSERT(cache->indices == 0); #endif - cache->vertexCount = 0; + updateCache = true; } } } else { cache = new QGL2PEVectorPathCache; - cache->vertexCount = 0; - cache->indexCount = 0; data = const_cast<QVectorPath &>(path).addCacheData(q, cache, qopengl2paintengine_cleanup_vectorpath); + updateCache = true; } // Flatten the path at the current scale factor and fill it into the cache struct. - if (!cache->vertexCount) { + if (updateCache) { vertexCoordinateArray.clear(); vertexCoordinateArray.addPath(path, inverseScale, false); int vertexCount = vertexCoordinateArray.vertexCount(); int floatSizeInBytes = vertexCount * 2 * sizeof(float); cache->vertexCount = vertexCount; + cache->indexCount = 0; cache->primitiveType = GL_TRIANGLE_FAN; cache->iscale = inverseScale; #ifdef QT_OPENGL_CACHE_AS_VBOS @@ -951,18 +953,22 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path) } } else { + bool useCache = path.isCacheable(); + if (useCache) { + QRectF bbox = path.controlPointRect(); + // If the path doesn't fit within these limits, it is possible that the triangulation will fail. + useCache &= (bbox.left() > -0x8000 * inverseScale) + && (bbox.right() < 0x8000 * inverseScale) + && (bbox.top() > -0x8000 * inverseScale) + && (bbox.bottom() < 0x8000 * inverseScale); + } - QRectF bbox = path.controlPointRect(); - // If the path doesn't fit within these limits, it is possible that the triangulation will fail. - bool pathIsWithinLimits = (bbox.left() > -0x8000 * inverseScale) - && (bbox.right() < 0x8000 * inverseScale) - && (bbox.top() > -0x8000 * inverseScale) - && (bbox.bottom() < 0x8000 * inverseScale); - - if (path.isCacheable() && pathIsWithinLimits) { + if (useCache) { QVectorPath::CacheEntry *data = path.lookupCacheData(q); QGL2PEVectorPathCache *cache; + bool updateCache = false; + if (data) { cache = (QGL2PEVectorPathCache *) data->data; // Check if scale factor is exceeded for curved paths and generate curves if so... @@ -972,24 +978,21 @@ void QGL2PaintEngineExPrivate::fill(const QVectorPath& path) #ifdef QT_OPENGL_CACHE_AS_VBOS glDeleteBuffers(1, &cache->vbo); glDeleteBuffers(1, &cache->ibo); - cache->vbo = cache->ibo = 0; #else qFree(cache->vertices); qFree(cache->indices); #endif - cache->vertexCount = 0; - cache->indexCount = 0; + updateCache = true; } } } else { cache = new QGL2PEVectorPathCache; - cache->vertexCount = 0; - cache->indexCount = 0; data = const_cast<QVectorPath &>(path).addCacheData(q, cache, qopengl2paintengine_cleanup_vectorpath); + updateCache = true; } // Flatten the path at the current scale factor and fill it into the cache struct. - if (!cache->vertexCount) { + if (updateCache) { QTriangleSet polys = qTriangulate(path, QTransform().scale(1 / inverseScale, 1 / inverseScale)); cache->vertexCount = polys.vertices.size() / 2; cache->indexCount = polys.indices.size(); |