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* OpenVG: short-cut clipping for QPainterPath's that are just rectsRhys Weatherley2009-07-021-0/+50
| | | | | | | | | If the QPainterPath contains a structure that looks like a simple rectangle, then use the faster clip(QRect) function instead of a full VGPath-based render call. Task-number: QT-64 Reviewed-by: trustme
* OpenVG: override QPaintEngineEx::clip(QRect) and handle specially.Rhys Weatherley2009-07-022-2/+129
| | | | | | | | This change should improve performance of single-rectangle clip regions by avoiding the overhead of creating and intersecting QRegion objects. Task-number: QT-64 Reviewed-by: trustme
* OpenVG: use the correct clip region to detect single-rect clipsRhys Weatherley2009-07-011-2/+2
| | | | | | | | | | "Special case: if the intersection of the system clip and the region is a single rectangle, then use the scissor for clipping." It was doing the intersection but then didn't use the intersection to test for the single-rectangle case. Task-number: QT-64 Reviewed-by: trustme
* OpenVG compile fix - use const_cast instead of static_castRhys Weatherley2009-07-011-4/+4
| | | | Reviewed-by: trustme
* Better detection for OpenVG engines that run on top of OpenGLRhys Weatherley2009-06-241-0/+6
| | | | | | | ShivaVG runs on top of OpenGL. Include the QMAKE_*_OPENGL flags on the link line if it is needed by the OpenVG engine. Reviewed-by: trustme
* Integrate the OpenVG graphics system into Qt 4.6Rhys Weatherley2009-06-2214-0/+5739
This change also moves the EGL support classes from QtOpenGL to QtGui so they can be shared between OpenGL and OpenVG.