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| author | Jani Hautakangas <jani.hautakangas@nokia.com> | 2011-10-19 06:39:22 (GMT) |
|---|---|---|
| committer | Jani Hautakangas <jani.hautakangas@nokia.com> | 2011-10-19 09:45:53 (GMT) |
| commit | 20542f9546637bd649c928226249be0ffc91841b (patch) | |
| tree | 9eccbe781a22a4cc7e905111eb1dcdfccec98e29 /src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp | |
| parent | b9a3d4bf7827aa631995d47233d47583917a5a7f (diff) | |
| download | Qt-20542f9546637bd649c928226249be0ffc91841b.zip Qt-20542f9546637bd649c928226249be0ffc91841b.tar.gz Qt-20542f9546637bd649c928226249be0ffc91841b.tar.bz2 | |
Workaround to VideoCore III scissor bug.
Some versions of VideoCore III drivers seem
to pollute and use stencil buffer when using
glScissors. Workaround is to clear stencil buffer
before disabling scissoring.
Task-number: QT-5308
Reviewed-by: Samuel Rødal
Diffstat (limited to 'src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp')
| -rw-r--r-- | src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp index 047d589..999a074 100644 --- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp +++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp @@ -2059,6 +2059,8 @@ void QGL2PaintEngineExPrivate::updateClipScissorTest() currentScissorBounds = bounds; if (bounds == QRect(0, 0, width, height)) { + if (ctx->d_func()->workaround_brokenScissor) + clearClip(0); glDisable(GL_SCISSOR_TEST); } else { glEnable(GL_SCISSOR_TEST); |