From: Ian Romanick <ian.d.roman...@intel.com>
The old code was an obvious cut-and-paste fail from intel_bufferobj_map.
Cc: Eric Anholt <e...@anholt.net>
Cc: Ben Widawsky <b...@bwidawsk.net>
---
src/mesa/drivers/dri/intel/intel_buffer_objects.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/src/mesa/drivers/dri/intel/intel_buffer_objects.c
b/src/mesa/drivers/dri/intel/intel_buffer_objects.c
index 7a0102b..eaf2026 100644
--- a/src/mesa/drivers/dri/intel/intel_buffer_objects.c
+++ b/src/mesa/drivers/dri/intel/intel_buffer_objects.c
@@ -374,7 +374,6 @@ intel_bufferobj_map_range(struct gl_context * ctx,
{
struct intel_context *intel = intel_context(ctx);
struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
- GLboolean read_only = (access == GL_READ_ONLY_ARB);
assert(intel_obj);
@@ -386,6 +385,9 @@ intel_bufferobj_map_range(struct gl_context * ctx,
obj->AccessFlags = access;
if (intel_obj->sys_buffer) {
+ const GLboolean read_only = (access & GL_MAP_READ_BIT) != 0
+ && (access & GL_MAP_WRITE_BIT) == 0;
+
if (!read_only && intel_obj->source)
release_buffer(intel_obj);
--
1.7.4.4
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