Mesa (master): glx: Invalidate buffers after binding a drawable
Kristian Høgsberg
krh at kemper.freedesktop.org
Wed Sep 22 21:40:34 UTC 2010
Module: Mesa
Branch: master
Commit: 86a1938aa56c02d7da137b09e579d24d7da50d9e
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=86a1938aa56c02d7da137b09e579d24d7da50d9e
Author: Kristian Høgsberg <krh at bitplanet.net>
Date: Wed Sep 22 17:34:00 2010 -0400
glx: Invalidate buffers after binding a drawable
If the server doesn't send invalidate events, we may miss a
resize before the rendering starts. Invalidate the buffers now
so the driver will recheck before rendering starts.
https://bugs.freedesktop.org/show_bug.cgi?id=29984
https://bugs.freedesktop.org/show_bug.cgi?id=30155
---
src/glx/dri2_glx.c | 19 +++++++++++++++----
1 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/src/glx/dri2_glx.c b/src/glx/dri2_glx.c
index 88bb8b8..b0559b2 100644
--- a/src/glx/dri2_glx.c
+++ b/src/glx/dri2_glx.c
@@ -138,6 +138,7 @@ dri2_bind_context(struct glx_context *context, struct glx_context *old,
struct dri2_context *pcp = (struct dri2_context *) context;
struct dri2_screen *psc = (struct dri2_screen *) pcp->base.psc;
struct dri2_drawable *pdraw, *pread;
+ struct dri2_display *pdp;
pdraw = (struct dri2_drawable *) driFetchDrawable(context, draw);
pread = (struct dri2_drawable *) driFetchDrawable(context, read);
@@ -145,11 +146,21 @@ dri2_bind_context(struct glx_context *context, struct glx_context *old,
if (pdraw == NULL || pread == NULL)
return GLXBadDrawable;
- if ((*psc->core->bindContext) (pcp->driContext,
- pdraw->driDrawable, pread->driDrawable))
- return Success;
+ if (!(*psc->core->bindContext) (pcp->driContext,
+ pdraw->driDrawable, pread->driDrawable))
+ return GLXBadContext;
+
+ /* If the server doesn't send invalidate events, we may miss a
+ * resize before the rendering starts. Invalidate the buffers now
+ * so the driver will recheck before rendering starts. */
+ pdp = (struct dri2_display *) psc->base.display;
+ if (!pdp->invalidateAvailable) {
+ dri2InvalidateBuffers(psc->base.dpy, pdraw->base.xDrawable);
+ if (pread != pdraw)
+ dri2InvalidateBuffers(psc->base.dpy, pread->base.xDrawable);
+ }
- return GLXBadContext;
+ return Success;
}
static void
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