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authorPaul Berry <[email protected]>2013-05-30 07:08:07 -0700
committerPaul Berry <[email protected]>2013-06-07 13:26:36 -0700
commit03cc31031315059a80d12485a402ea2a8731dc8a (patch)
treee1328c769198d741d4aed38e48dcee054d502a08
parentbc8bfdc42cce18cf3a44f487b73460bebe8c2ae4 (diff)
intel: make intel_flush_front safe to call during initial MakeCurrent
The patch that follows will fix a bug that prevents intel_flush_front() from being called often enough. In doing so, it will create a situation where intel_flush_front() is called during the initial call to glXMakeCurrent(). In this circumstance, ctx->DrawBuffer hasn't been initialized yet and is NULL. Fortunately, intel->front_buffer_dirty is false, so intel_flush_front() doesn't actually need to do anything. To avoid a segfault, swap the order of terms in intel_flush_front()'s if statement. Reviewed-by: Chad Versace <[email protected]> Reviewed-by: Anuj Phogat <[email protected]>
-rw-r--r--src/mesa/drivers/dri/intel/intel_context.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index 8c88b3ca2f7..54d0a69edc7 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -132,7 +132,7 @@ intel_flush_front(struct gl_context *ctx)
__DRIdrawable *driDrawable = driContext->driDrawablePriv;
__DRIscreen *const screen = intel->intelScreen->driScrnPriv;
- if (_mesa_is_winsys_fbo(ctx->DrawBuffer) && intel->front_buffer_dirty) {
+ if (intel->front_buffer_dirty && _mesa_is_winsys_fbo(ctx->DrawBuffer)) {
if (screen->dri2.loader->flushFrontBuffer != NULL &&
driDrawable &&
driDrawable->loaderPrivate) {