Restores proper immediate tearing swap behaviour for OpenGL bufferswap under DRI3/Present.
Cc: "10.3 10.4" <[email protected]> v2: Add Frank Binns signed off by for his original earlier patch from April 2014, which is identical to this one, and Chris Wilsons reviewed tag from May 2014 for that patch, ergo also for this one. Signed-off-by: Frank Binns <[email protected]> Signed-off-by: Mario Kleiner <[email protected]> Reviewed-by: Chris Wilson <[email protected]> --- 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 _______________________________________________ mesa-dev mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-dev
