diff options
| -rw-r--r-- | src/platformsupport/eglconvenience/qxlibeglintegration.cpp | 39 |
1 files changed, 14 insertions, 25 deletions
diff --git a/src/platformsupport/eglconvenience/qxlibeglintegration.cpp b/src/platformsupport/eglconvenience/qxlibeglintegration.cpp index 80453816fc..9c2d50823a 100644 --- a/src/platformsupport/eglconvenience/qxlibeglintegration.cpp +++ b/src/platformsupport/eglconvenience/qxlibeglintegration.cpp @@ -84,32 +84,22 @@ VisualID QXlibEglIntegration::getCompatibleVisualId(Display *display, EGLDisplay int visualRedSize = qPopulationCount(chosenVisualInfo->red_mask); int visualGreenSize = qPopulationCount(chosenVisualInfo->green_mask); int visualBlueSize = qPopulationCount(chosenVisualInfo->blue_mask); - int visualAlphaSize = -1; // Need XRender to tell us the alpha channel size - - bool visualMatchesConfig = false; - if ( visualRedSize == configRedSize && - visualGreenSize == configGreenSize && - visualBlueSize == configBlueSize ) - { - // We need XRender to check the alpha channel size of the visual. If we don't have - // the alpha size, we don't check it against the EGL config's alpha size. - if (visualAlphaSize >= 0) - visualMatchesConfig = visualAlphaSize == configAlphaSize; - else - visualMatchesConfig = true; - } + int visualAlphaSize = chosenVisualInfo->depth == 32 ? 8 : 0; + + const bool visualMatchesConfig = visualRedSize == configRedSize + && visualGreenSize == configGreenSize + && visualBlueSize == configBlueSize + && visualAlphaSize == configAlphaSize; + // In some cases EGL tends to suggest a 24-bit visual for 8888 + // configs. In such a case we have to fall back to XGetVisualInfo. if (!visualMatchesConfig) { - if (visualAlphaSize >= 0) { - qWarning("Warning: EGL suggested using X Visual ID %d (ARGB%d%d%d%d) for EGL config %d (ARGB%d%d%d%d), but this is incompatable", - (int)visualId, visualAlphaSize, visualRedSize, visualGreenSize, visualBlueSize, - configId, configAlphaSize, configRedSize, configGreenSize, configBlueSize); - } else { - qWarning("Warning: EGL suggested using X Visual ID %d (RGB%d%d%d) for EGL config %d (RGB%d%d%d), but this is incompatable", - (int)visualId, visualRedSize, visualGreenSize, visualBlueSize, - configId, configRedSize, configGreenSize, configBlueSize); - } visualId = 0; +#ifdef QT_DEBUG_X11_VISUAL_SELECTION + qWarning("Warning: EGL suggested using X Visual ID %d (%d %d %d depth %d) for EGL config %d (%d %d %d %d), but this is incompatible", + (int)visualId, visualRedSize, visualGreenSize, visualBlueSize, chosenVisualInfo->depth, + configId, configRedSize, configGreenSize, configBlueSize, configAlphaSize); +#endif } } else { qWarning("Warning: EGL suggested using X Visual ID %d for EGL config %d, but that isn't a valid ID", @@ -133,8 +123,7 @@ VisualID QXlibEglIntegration::getCompatibleVisualId(Display *display, EGLDisplay return visualId; } - // Finally, try to - // use XGetVisualInfo and only use the bit depths to match on: + // Finally, try to use XGetVisualInfo and only use the bit depths to match on: if (!visualId) { XVisualInfo visualInfoTemplate; memset(&visualInfoTemplate, 0, sizeof(XVisualInfo)); |