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egl_dri2: set ctx->WindowRenderBuffer

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Set ctx->WindowRenderBuffer to EGL_BACK_BUFFER.  As EGL_WINDOW_BIT of a
config is set only when there is dri_double_buffer, that makes sure
window surfaces are always double-buffered and contexts will render to
the back buffer.

Reviewed-by: Chad Versace <chad@chad-versace.us>
This commit is contained in:
Chia-I Wu
2011-08-27 01:42:16 +08:00
parent 66e8d223b6
commit 357d3f30f3
1 changed files with 6 additions and 0 deletions
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src/egl/drivers/dri2/egl_dri2.c
+6
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@@ -697,6 +697,12 @@ dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
dri_config = dri2_config->dri_double_config;
else
dri_config = dri2_config->dri_single_config;
/* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
* makes sure the back buffer will always be used.
*/
if (conf->SurfaceType & EGL_WINDOW_BIT)
dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
}
else
dri_config = NULL;