Commit 4c502e05 authored by Brian Paul's avatar Brian Paul

mesa: add/update comments in _mesa_copy_buffer_subdata()

parent 2bdf9344
......@@ -504,7 +504,7 @@ _mesa_copy_buffer_subdata(struct gl_context *ctx,
{
void *srcPtr, *dstPtr;
/* buffer should not already be mapped */
/* the buffers should not be mapped */
assert(!_mesa_bufferobj_mapped(src));
assert(!_mesa_bufferobj_mapped(dst));
......@@ -514,6 +514,9 @@ _mesa_copy_buffer_subdata(struct gl_context *ctx,
(GL_MAP_WRITE_BIT |
GL_MAP_INVALIDATE_RANGE_BIT), dst);
/* Note: the src and dst regions will never overlap. Trying to do so
* would generate GL_INVALID_VALUE earlier.
*/
if (srcPtr && dstPtr)
memcpy(dstPtr, srcPtr, size);
......
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