xserver: Branch 'master'
GitLab Mirror
gitlab-mirror at kemper.freedesktop.org
Tue Aug 20 18:13:53 UTC 2019
glx/glxcmds.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
New commits:
commit 95dcc81cb122e5a4c5b38e84ef46eb872b2e1431
Author: Adam Jackson <ajax at redhat.com>
Date: Fri Aug 16 14:56:19 2019 -0400
glx: Fix previous context validation in xorgGlxMakeCurrent
vnd has already verified that the context tag is valid before this gets
called, and we only set the context tag private data to non-null for
indirect clients. Mesa happens to be buggy and doesn't send MakeCurrent
requests nearly as much as it should for direct contexts, but if you fix
that, then unbinding a direct context would fail here with
GLXBadContextTag.
Sadly Mesa will still need to carry a workaround here for broken
servers, but we should still fix the server.
diff --git a/glx/glxcmds.c b/glx/glxcmds.c
index 6af050940..189b5d913 100644
--- a/glx/glxcmds.c
+++ b/glx/glxcmds.c
@@ -574,10 +574,8 @@ xorgGlxMakeCurrent(ClientPtr client, GLXContextTag tag, XID drawId, XID readId,
/* Look up old context. If we have one, it must be in a usable state. */
if (tag != 0) {
prevglxc = glxServer.getContextTagPrivate(client, tag);
- if (!prevglxc)
- return __glXError(GLXBadContextTag);
- if (prevglxc->renderMode != GL_RENDER) {
+ if (prevglxc && prevglxc->renderMode != GL_RENDER) {
/* Oops. Not in render mode render. */
client->errorValue = prevglxc->id;
return __glXError(GLXBadContextState);
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