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/mesa/state_tracker/st_cb_bitmap.c | |
| 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/mesa/state_tracker/st_cb_bitmap.c')
| -rw-r--r-- | src/mesa/state_tracker/st_cb_bitmap.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/mesa/state_tracker/st_cb_bitmap.c b/src/mesa/state_tracker/st_cb_bitmap.c index b024ef0db32..843dc5be337 100644 --- a/src/mesa/state_tracker/st_cb_bitmap.c +++ b/src/mesa/state_tracker/st_cb_bitmap.c @@ -457,7 +457,7 @@ draw_bitmap_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z, cso_save_vertex_shader(cso); cso_save_geometry_shader(cso); cso_save_vertex_elements(cso); - cso_save_vertex_buffers(cso); + cso_save_aux_vertex_buffer_slot(cso); /* rasterizer state: just scissor */ st->bitmap.rasterizer.scissor = ctx->Scissor.Enabled; @@ -526,7 +526,9 @@ draw_bitmap_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z, x, y, width, height, z, color, &vbuf, &offset); if (vbuf) { - util_draw_vertex_buffer(pipe, st->cso_context, vbuf, offset, + util_draw_vertex_buffer(pipe, st->cso_context, vbuf, + cso_get_aux_vertex_buffer_slot(st->cso_context), + offset, PIPE_PRIM_TRIANGLE_FAN, 4, /* verts */ 3); /* attribs/vert */ @@ -541,7 +543,7 @@ draw_bitmap_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z, cso_restore_vertex_shader(cso); cso_restore_geometry_shader(cso); cso_restore_vertex_elements(cso); - cso_restore_vertex_buffers(cso); + cso_restore_aux_vertex_buffer_slot(cso); cso_restore_stream_outputs(cso); pipe_resource_reference(&vbuf, NULL); |