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Merge branch 'Plasma/5.17'

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This commit is contained in:
Fabian Vogt 2019-10-15 16:08:36 +02:00
commit f4c6de8ec4
1 changed files with 16 additions and 1 deletions
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17
plugins/platforms/x11/standalone/glxbackend.cpp
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@ -439,9 +439,24 @@ bool GlxBackend::initFbConfig()
0
};
bool llvmpipe = false;
// Note that we cannot use GLPlatform::driver() here, because it has not been initialized at this point
if (hasExtension(QByteArrayLiteral("GLX_MESA_query_renderer"))) {
const QByteArray device = glXQueryRendererStringMESA(display(), DefaultScreen(display()), 0, GLX_RENDERER_DEVICE_ID_MESA);
if (device.contains(QByteArrayLiteral("llvmpipe"))) {
llvmpipe = true;
}
}
// Try to find a double buffered sRGB capable configuration
int count = 0;
GLXFBConfig *configs = glXChooseFBConfig(display(), DefaultScreen(display()), attribs_srgb, &count);
GLXFBConfig *configs = nullptr;
// Don't request an sRGB configuration with LLVMpipe when the default depth is 16. See bug #408594.
if (!llvmpipe || Xcb::defaultDepth() > 16) {
configs = glXChooseFBConfig(display(), DefaultScreen(display()), attribs_srgb, &count);
}
if (count == 0) {
// Try to find a double buffered non-sRGB capable configuration