Restores proper immediate tearing swap behaviour for
OpenGL bufferswap under DRI3/Present.
Cc: "10.3 10.4" <mesa-sta...@lists.freedesktop.org>
Signed-off-by: Mario Kleiner <mario.kleiner...@gmail.com>
---
src/glx/dri3_glx.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/glx/dri3_glx.c b/src/glx/dri3_glx.c
index 5796491..c53be1b 100644
--- a/src/glx/dri3_glx.c
+++ b/src/glx/dri3_glx.c
@@ -1518,6 +1518,7 @@ dri3_swap_buffers(__GLXDRIdrawable *pdraw, int64_t
target_msc, int64_t divisor,
xcb_connection_t *c = XGetXCBConnection(dpy);
struct dri3_buffer *back;
int64_t ret = 0;
+ uint32_t options = XCB_PRESENT_OPTION_NONE;
unsigned flags = __DRI2_FLUSH_DRAWABLE;
if (flush)
@@ -1557,6 +1558,9 @@ dri3_swap_buffers(__GLXDRIdrawable *pdraw, int64_t
target_msc, int64_t divisor,
if (target_msc == 0)
target_msc = priv->msc + priv->swap_interval * (priv->send_sbc -
priv->recv_sbc);
+ if (priv->swap_interval == 0)
+ options |= XCB_PRESENT_OPTION_ASYNC;
+
back->busy = 1;
back->last_swap = priv->send_sbc;
xcb_present_pixmap(c,
@@ -1570,7 +1574,7 @@ dri3_swap_buffers(__GLXDRIdrawable *pdraw, int64_t
target_msc, int64_t divisor,
None, /* target_crtc
*/
None,
back->sync_fence,
- XCB_PRESENT_OPTION_NONE,
+ options,
target_msc,
divisor,
remainder, 0, NULL);
--
1.9.1
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