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egl/wayland: Don't replace existing backbuffer in get_buffers 

If the surface already has a current backbuffer - say through a
buffer_age query - we do not want to replace it in get_buffers, because
it means the result we'd previously returned them is stale.

If we already have a backbuffer set on the surface, keep it locked in no
matter what until we hit SwapBuffers.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14873>
This commit is contained in:
Daniel Stone 2022-02-04 18:17:51 +00:00 committed by Marge Bot
parent 3da8300562
commit b561946497
1 changed files with 2 additions and 2 deletions
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4
src/egl/drivers/dri2/platform_wayland.c
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@ -1172,7 +1172,7 @@ dri2_wl_get_buffers_with_format(__DRIdrawable * driDrawable,
struct dri2_egl_surface *dri2_surf = loaderPrivate;
int i, j;
if (update_buffers(dri2_surf) < 0)
if (update_buffers_if_needed(dri2_surf) < 0)
return NULL;
for (i = 0, j = 0; i < 2 * count; i += 2, j++) {
@ -1251,7 +1251,7 @@ image_get_buffers(__DRIdrawable *driDrawable,
{
struct dri2_egl_surface *dri2_surf = loaderPrivate;
if (update_buffers(dri2_surf) < 0)
if (update_buffers_if_needed(dri2_surf) < 0)
return 0;
buffers->image_mask = __DRI_IMAGE_BUFFER_BACK;