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authorChia-I Wu <olv@lunarg.com>2010-03-28 02:11:16 +0800
committerChia-I Wu <olv@lunarg.com>2010-03-28 03:37:28 +0800
commit551bfe7a09b0d1bc277796edc10c649b2b07a5b7 (patch)
treeac6a6bb96b27e55f82745a07495c16489b2ea68d
parent3bfa23317c6b1b52ec637a03a0b623228ffc95ef (diff)
egl: Always return the previously bound context.
When a newly bound context is the same as the previously bound one, _eglBindContextToThread should still return the context instead of NULL. This gives the driver a chance to flush the context.
-rw-r--r--src/egl/main/eglcontext.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/src/egl/main/eglcontext.c b/src/egl/main/eglcontext.c
index 012d8dfe1f..710752fbcf 100644
--- a/src/egl/main/eglcontext.c
+++ b/src/egl/main/eglcontext.c
@@ -246,15 +246,14 @@ _eglBindContextToThread(_EGLContext *ctx, _EGLThreadInfo *t)
_eglConvertApiToIndex(ctx->ClientAPI) : t->CurrentAPIIndex;
oldCtx = t->CurrentContexts[apiIndex];
- if (ctx == oldCtx)
- return NULL;
+ if (ctx != oldCtx) {
+ if (oldCtx)
+ oldCtx->Binding = NULL;
+ if (ctx)
+ ctx->Binding = t;
- if (oldCtx)
- oldCtx->Binding = NULL;
- if (ctx)
- ctx->Binding = t;
-
- t->CurrentContexts[apiIndex] = ctx;
+ t->CurrentContexts[apiIndex] = ctx;
+ }
return oldCtx;
}
@@ -352,7 +351,7 @@ _eglBindContext(_EGLContext **ctx, _EGLSurface **draw, _EGLSurface **read)
_eglBindContextToSurfaces(newCtx, draw, read);
/* unbind the old context from its binding surfaces */
- if (oldCtx) {
+ if (oldCtx && oldCtx != newCtx) {
/*
* If the new context replaces some old context, the new one should not
* be current before the replacement and it should not be bound to any