backport patch: fixes front-buffer rendering with DRI1

This commit is contained in:
Stephan Raue 2009-04-26 04:24:12 +02:00
parent 4d88a52c6b
commit 7882921b5a

View File

@ -0,0 +1,23 @@
From c38397866d514d7776b0f876123be5718802482b Mon Sep 17 00:00:00 2001
From: Brian Paul <brianp@vmware.com>
Date: Mon, 20 Apr 2009 22:12:16 +0000
Subject: intel: added null screen->dri2.loader pointer check
Fixes front-buffer rendering with DRI1.
---
diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index ddcd264..ecaf6b4 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -534,7 +534,8 @@ intel_flush(GLcontext *ctx, GLboolean needs_mi_flush)
if ((ctx->DrawBuffer->Name == 0) && intel->front_buffer_dirty) {
__DRIscreen *const screen = intel->intelScreen->driScrnPriv;
- if ((screen->dri2.loader->base.version >= 2)
+ if (screen->dri2.loader
+ && (screen->dri2.loader->base.version >= 2)
&& (screen->dri2.loader->flushFrontBuffer != NULL)) {
(*screen->dri2.loader->flushFrontBuffer)(intel->driDrawable,
intel->driDrawable->loaderPrivate);
--
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