Hi, I sent exactly the same patch back in April. Despite getting a review-by it was never merged. See:
http://lists.freedesktop.org/archives/mesa-dev/2014-April/058347.html http://lists.freedesktop.org/archives/mesa-dev/2014-May/060432.html Thanks Frank On 25/11/14 03:00, Mario Kleiner wrote:
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);
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