diff options
Diffstat (limited to 'src/gui/painting')
| -rw-r--r-- | src/gui/painting/qplatformbackingstore.cpp | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/src/gui/painting/qplatformbackingstore.cpp b/src/gui/painting/qplatformbackingstore.cpp index e765a9e402..c86fdebea5 100644 --- a/src/gui/painting/qplatformbackingstore.cpp +++ b/src/gui/painting/qplatformbackingstore.cpp @@ -300,11 +300,7 @@ void QPlatformBackingStore::composeAndFlush(QWindow *window, const QRegion ®i } funcs->glEnable(GL_BLEND); - funcs->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - // Do not write out alpha. We need blending, but only for RGB. The toplevel may have - // alpha enabled in which case blending (writing out < 1.0 alpha values) would lead to - // semi-transparency even when it is not wanted. - funcs->glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_FALSE); + funcs->glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE); // Backingstore texture with the normal widgets. GLuint textureId = 0; @@ -364,7 +360,6 @@ void QPlatformBackingStore::composeAndFlush(QWindow *window, const QRegion ®i blit(textures, i, window, deviceWindowRect, d_ptr->blitter); } - funcs->glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); funcs->glDisable(GL_BLEND); d_ptr->blitter->release(); |