diff options
| -rw-r--r-- | src/mesa/state_tracker/st_cb_bufferobjects.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/mesa/state_tracker/st_cb_bufferobjects.c b/src/mesa/state_tracker/st_cb_bufferobjects.c index 55f36442a07..90f786cc1f2 100644 --- a/src/mesa/state_tracker/st_cb_bufferobjects.c +++ b/src/mesa/state_tracker/st_cb_bufferobjects.c @@ -256,8 +256,15 @@ st_bufferobj_data(struct gl_context *ctx, break; case GL_STREAM_DRAW: case GL_STREAM_COPY: - pipe_usage = PIPE_USAGE_STREAM; - break; + /* XXX: Remove this test and fall-through when we have PBO unpacking + * acceleration. Right now, PBO unpacking is done by the CPU, so we + * have to make sure CPU reads are fast. + */ + if (target != GL_PIXEL_UNPACK_BUFFER_ARB) { + pipe_usage = PIPE_USAGE_STREAM; + break; + } + /* fall through */ case GL_STATIC_READ: case GL_DYNAMIC_READ: case GL_STREAM_READ: |