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 <thellst...@vmware.com>
---
src/loader/loader_dri3_helper.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/src/loader/loader_dri3_helper.c b/src/loader/loader_dri3_helper.c
index 7056f46..dee0df8 100644
--- a/src/loader/loader_dri3_helper.c
+++ b/src/loader/loader_dri3_helper.c
@@ -767,7 +767,7 @@ 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
@@ -1494,8 +1494,10 @@ 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) {
--
2.7.4
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