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-rw-r--r--src/glx/dri2_glx.c17
-rw-r--r--src/glx/dri_common.c3
2 files changed, 15 insertions, 5 deletions
diff --git a/src/glx/dri2_glx.c b/src/glx/dri2_glx.c
index 0a0dac98646..67fe9c1d4f9 100644
--- a/src/glx/dri2_glx.c
+++ b/src/glx/dri2_glx.c
@@ -141,6 +141,7 @@ 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;
+ __DRIdrawable *dri_draw = NULL, *dri_read = NULL;
struct dri2_display *pdp;
pdraw = (struct dri2_drawable *) driFetchDrawable(context, draw);
@@ -148,20 +149,26 @@ dri2_bind_context(struct glx_context *context, struct glx_context *old,
driReleaseDrawables(&pcp->base);
- if (pdraw == NULL || pread == NULL)
+ if (pdraw)
+ dri_draw = pdraw->driDrawable;
+ else if (draw != None)
return GLXBadDrawable;
- if (!(*psc->core->bindContext) (pcp->driContext,
- pdraw->driDrawable, pread->driDrawable))
+ if (pread)
+ dri_read = pread->driDrawable;
+ else if (read != None)
+ return GLXBadDrawable;
+
+ if (!(*psc->core->bindContext) (pcp->driContext, dri_draw, dri_read))
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) {
+ if (!pdp->invalidateAvailable && pdraw) {
dri2InvalidateBuffers(psc->base.dpy, pdraw->base.xDrawable);
- if (pread != pdraw)
+ if (pread != pdraw && pread)
dri2InvalidateBuffers(psc->base.dpy, pread->base.xDrawable);
}
diff --git a/src/glx/dri_common.c b/src/glx/dri_common.c
index 0dd8982a18b..012c8f4ec32 100644
--- a/src/glx/dri_common.c
+++ b/src/glx/dri_common.c
@@ -392,6 +392,9 @@ driFetchDrawable(struct glx_context *gc, GLXDrawable glxDrawable)
if (priv == NULL)
return NULL;
+ if (glxDrawable == None)
+ return NULL;
+
psc = priv->screens[gc->screen];
if (priv->drawHash == NULL)
return NULL;