Use flips for back- and fake front buffers.
This might lead to fake front and real front being shared if the hardware
is page-flip capable.
In any case it will save a full-drawable copy and also the subsequent wait for
the X server to submit that copy to hardware if front-buffer reading or
rendering is enabled.
Signed-off-by: Thomas Hellstrom <thellst...@vmware.com>
---
src/loader/loader_dri3_helper.c | 26 ++++++++------------------
1 file changed, 8 insertions(+), 18 deletions(-)
diff --git a/src/loader/loader_dri3_helper.c b/src/loader/loader_dri3_helper.c
index f012e55..041bfc4 100644
--- a/src/loader/loader_dri3_helper.c
+++ b/src/loader/loader_dri3_helper.c
@@ -652,14 +652,14 @@ loader_dri3_swap_buffers_msc(struct loader_dri3_drawable
*draw,
back->height,
0, 0, back->width,
back->height, __BLIT_FLAG_FLUSH);
- /* Update the fake front */
- if (draw->have_fake_front)
- draw->ext->image->blitImage(dri_context,
-
draw->buffers[LOADER_DRI3_FRONT_ID]->image,
- back->image,
- 0, 0, draw->width, draw->height,
- 0, 0, draw->width, draw->height,
- __BLIT_FLAG_FLUSH);
+ }
+
+ if (back && draw->have_fake_front) {
+ struct loader_dri3_buffer *tmp;
+
+ tmp = dri3_fake_front_buffer(draw);
+ draw->buffers[LOADER_DRI3_FRONT_ID] = back;
+ draw->buffers[LOADER_DRI3_BACK_ID(draw->cur_back)] = tmp;
}
dri3_flush_present_events(draw);
@@ -727,16 +727,6 @@ loader_dri3_swap_buffers_msc(struct loader_dri3_drawable
*draw,
* to reset the fence and make future users block until
* the X server is done copying the bits
*/
- if (draw->have_fake_front && !draw->is_different_gpu) {
- dri3_fence_reset(draw->conn, draw->buffers[LOADER_DRI3_FRONT_ID]);
- dri3_copy_area(draw->conn,
- back->pixmap,
- draw->buffers[LOADER_DRI3_FRONT_ID]->pixmap,
- dri3_drawable_gc(draw),
- 0, 0, 0, 0,
- draw->width, draw->height);
- dri3_fence_trigger(draw->conn, draw->buffers[LOADER_DRI3_FRONT_ID]);
- }
xcb_flush(draw->conn);
if (draw->stamp)
++(*draw->stamp);
--
2.7.4
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-dev
