We didn't consume these flags in any way that would produce a
functional difference, but we might have some day.
---
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 4a1a816..9b1f642 100644
--- a/src/mesa/drivers/dri/intel/intel_buffer_objects.c
+++ b/src/mesa/drivers/dri/intel/intel_buffer_objects.c
@@ -663,7 +663,9 @@ intel_bufferobj_copy_subdata(struct gl_context *ctx,
*/
if (src == dst) {
char *ptr = intel_bufferobj_map_range(ctx, 0, dst->Size,
- GL_MAP_READ_BIT, dst);
+ GL_MAP_READ_BIT |
+ GL_MAP_WRITE_BIT,
+ dst);
memmove(ptr + write_offset, ptr + read_offset, size);
intel_bufferobj_unmap(ctx, dst);
} else {
--
1.7.7.3
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