diff options
Diffstat (limited to 'src/glx/dri2_glx.c')
| -rw-r--r-- | src/glx/dri2_glx.c | 17 |
1 files changed, 12 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); } |