diff options
| -rw-r--r-- | src/egl/drivers/dri2/platform_x11.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/src/egl/drivers/dri2/platform_x11.c b/src/egl/drivers/dri2/platform_x11.c index ec76aecfdd7..d1ceb6238ef 100644 --- a/src/egl/drivers/dri2/platform_x11.c +++ b/src/egl/drivers/dri2/platform_x11.c @@ -630,6 +630,7 @@ dri2_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy, xcb_depth_iterator_t d; xcb_visualtype_t *visuals; int i, j, id; + unsigned int rgba_masks[4]; EGLint surface_type; EGLint config_attrs[] = { EGL_NATIVE_VISUAL_ID, 0, @@ -660,8 +661,26 @@ dri2_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy, config_attrs[1] = visuals[i].visual_id; config_attrs[3] = visuals[i]._class; + rgba_masks[0] = visuals[i].red_mask; + rgba_masks[1] = visuals[i].green_mask; + rgba_masks[2] = visuals[i].blue_mask; + rgba_masks[3] = 0; dri2_add_config(disp, dri2_dpy->driver_configs[j], id++, - d.data->depth, surface_type, config_attrs, NULL); + 0, surface_type, config_attrs, rgba_masks); + + /* Allow a 24-bit RGB visual to match a 32-bit RGBA EGLConfig. + * Otherwise it will only match a 32-bit RGBA visual. On a + * composited window manager on X11, this will make all of the + * EGLConfigs with destination alpha get blended by the + * compositor. This is probably not what the application + * wants... especially on drivers that only have 32-bit RGBA + * EGLConfigs! */ + if (d.data->depth == 24) { + rgba_masks[3] = + ~(rgba_masks[0] | rgba_masks[1] | rgba_masks[2]); + dri2_add_config(disp, dri2_dpy->driver_configs[j], id++, + 0, surface_type, config_attrs, rgba_masks); + } } } |