Xephyr: Check screen resources creation success
If the screen pixmap or the corresponding texture creation with glamor fails, exit cleanly with an error message instead of segfaulting. Fixes: https://bugzilla.redhat.com/1431633 Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
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@ -725,8 +725,10 @@ ephyrCreateResources(ScreenPtr pScreen)
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ephyrShadowUpdate, ephyrWindowLinear);
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else {
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#ifdef GLAMOR
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if (ephyr_glamor)
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ephyr_glamor_create_screen_resources(pScreen);
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if (ephyr_glamor) {
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if (!ephyr_glamor_create_screen_resources(pScreen))
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return FALSE;
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}
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#endif
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return ephyrSetInternalDamage(pScreen);
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}
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@ -1559,6 +1559,8 @@ ephyr_glamor_create_screen_resources(ScreenPtr pScreen)
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pScreen->height,
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pScreen->rootDepth,
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GLAMOR_CREATE_NO_LARGE);
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if (!screen_pixmap)
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return FALSE;
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pScreen->SetScreenPixmap(screen_pixmap);
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if (pScreen->root && pScreen->SetWindowPixmap)
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@ -1566,6 +1568,9 @@ ephyr_glamor_create_screen_resources(ScreenPtr pScreen)
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/* Tell the GLX code what to GL texture to read from. */
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tex = glamor_get_pixmap_texture(screen_pixmap);
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if (!tex)
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return FALSE;
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ephyr_glamor_set_texture(scrpriv->glamor, tex);
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return TRUE;
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