diff options
| author | Marek Olšák <[email protected]> | 2012-03-29 17:51:50 +0200 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2012-10-31 00:55:13 +0100 |
| commit | e73bf3b805de78299f1a652668ba4e6eab9bac94 (patch) | |
| tree | 11839d343c6aad3a8fb5c594cadf961288adbea0 /src/gallium/auxiliary/util/u_blitter.h | |
| parent | a7c5be098aee3a8228cbd95558bac29cb7ff6a3d (diff) | |
gallium: add start_slot parameter to set_vertex_buffers
This allows updating only a subrange of buffer bindings.
set_vertex_buffers(pipe, start_slot, count, NULL) unbinds buffers in that
range. Binding NULL resources unbinds buffers too (both buffer and user_buffer
must be NULL).
The meta ops are adapted to only save, change, and restore the single slot
they use. The cso_context can save and restore only one vertex buffer slot.
The clients can query which one it is using cso_get_aux_vertex_buffer_slot.
It's currently set to 0. (the Draw module breaks if it's set to non-zero)
It should decrease the CPU overhead when using a lot of meta ops, but
the drivers must be able to treat each vertex buffer slot as a separate
state (only r600g does so at the moment).
I can imagine this also being useful for optimizing some OpenGL use cases.
Reviewed-by: Brian Paul <[email protected]>
Diffstat (limited to 'src/gallium/auxiliary/util/u_blitter.h')
| -rw-r--r-- | src/gallium/auxiliary/util/u_blitter.h | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/src/gallium/auxiliary/util/u_blitter.h b/src/gallium/auxiliary/util/u_blitter.h index c49faaad717..b96e68e9310 100644 --- a/src/gallium/auxiliary/util/u_blitter.h +++ b/src/gallium/auxiliary/util/u_blitter.h @@ -104,8 +104,8 @@ struct blitter_context unsigned saved_num_sampler_views; struct pipe_sampler_view *saved_sampler_views[PIPE_MAX_SAMPLERS]; - unsigned saved_num_vertex_buffers; - struct pipe_vertex_buffer saved_vertex_buffers[PIPE_MAX_ATTRIBS]; + unsigned vb_slot; + struct pipe_vertex_buffer saved_vertex_buffer; unsigned saved_num_so_targets; struct pipe_stream_output_target *saved_so_targets[PIPE_MAX_SO_BUFFERS]; @@ -466,17 +466,13 @@ util_blitter_save_fragment_sampler_views(struct blitter_context *blitter, } static INLINE void -util_blitter_save_vertex_buffers(struct blitter_context *blitter, - unsigned num_vertex_buffers, - struct pipe_vertex_buffer *vertex_buffers) +util_blitter_save_vertex_buffer_slot(struct blitter_context *blitter, + struct pipe_vertex_buffer *vertex_buffers) { - assert(num_vertex_buffers <= Elements(blitter->saved_vertex_buffers)); - - blitter->saved_num_vertex_buffers = 0; - util_copy_vertex_buffers(blitter->saved_vertex_buffers, - (unsigned*)&blitter->saved_num_vertex_buffers, - vertex_buffers, - num_vertex_buffers); + pipe_resource_reference(&blitter->saved_vertex_buffer.buffer, + vertex_buffers[blitter->vb_slot].buffer); + memcpy(&blitter->saved_vertex_buffer, &vertex_buffers[blitter->vb_slot], + sizeof(struct pipe_vertex_buffer)); } static INLINE void |