mesa: Fix bad-enum/no-buffer error handling for buffer object functions.
For all the extension entrypoints using the get_buffer() helper, they
wanted the same error handling. In some cases, the error was doing
the same error return whether target was a bad enum, or a user buffer
wasn't bound.
(Actually, GL_ARB_map_buffer_range doesn't specify the error for a zero
buffer being bound for MapBufferRange, though it does for
FlushMappedBufferRange. This appears to be an oversight).
Fixes piglit GL_ARB_copy_buffer/negative-bound-zero.
Reviewed-by: Brian Paul <brianp@vmware.com>
1 file changed