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loader_dri3: Support GLX_SWAP_EXCHANGE_OML

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Add support for the exchange swap method. Since we're now forcing a fake front
buffer and we exchange the back and fake front on swaps, we don't need to add
much code.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
This commit is contained in:
Thomas Hellstrom
2017-08-10 17:34:05 +02:00
parent c898e02a33
commit 7c3e3c0faf
1 changed files with 5 additions and 3 deletions
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src/loader/loader_dri3_helper.c
+5 -3
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@@ -777,7 +777,7 @@ loader_dri3_swap_buffers_msc(struct loader_dri3_drawable *draw,
* The force_copy parameter is used by EGL to attempt to preserve
* the back buffer across a call to this function.
*/
if (draw->swap_method == __DRI_ATTRIB_SWAP_COPY || force_copy)
if (draw->swap_method != __DRI_ATTRIB_SWAP_UNDEFINED || force_copy)
draw->cur_blit_source = LOADER_DRI3_BACK_ID(draw->cur_back);
/* Exchange the back and fake front. Even though the server knows about these
@@ -1504,8 +1504,10 @@ loader_dri3_get_buffers(__DRIdrawable *driDrawable,
if (!dri3_update_drawable(driDrawable, draw))
return false;
/* pixmaps always have front buffers */
if (draw->is_pixmap)
/* pixmaps always have front buffers.
* Exchange swaps also mandate fake front buffers.
*/
if (draw->is_pixmap || draw->swap_method == __DRI_ATTRIB_SWAP_EXCHANGE)
buffer_mask |= __DRI_IMAGE_BUFFER_FRONT;
if (buffer_mask & __DRI_IMAGE_BUFFER_FRONT) {