diff options
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_vs_exec.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/src/gallium/auxiliary/draw/draw_vs_exec.c b/src/gallium/auxiliary/draw/draw_vs_exec.c index 44563803f90..8041705b9ca 100644 --- a/src/gallium/auxiliary/draw/draw_vs_exec.c +++ b/src/gallium/auxiliary/draw/draw_vs_exec.c @@ -46,6 +46,7 @@ struct exec_vertex_shader { struct draw_vertex_shader base; struct tgsi_exec_machine *machine; + struct tgsi_token *machine_tokens; }; static struct exec_vertex_shader *exec_vertex_shader( struct draw_vertex_shader *vs ) @@ -62,12 +63,16 @@ vs_exec_prepare( struct draw_vertex_shader *shader, { struct exec_vertex_shader *evs = exec_vertex_shader(shader); - /* specify the vertex program to interpret/execute */ - tgsi_exec_machine_bind_shader(evs->machine, - shader->state.tokens, - PIPE_MAX_SAMPLERS, - NULL /*samplers*/ ); - + /* Specify the vertex program to interpret/execute. + * Avoid rebinding when possible. + */ + if (evs->machine_tokens != shader->state.tokens) { + tgsi_exec_machine_bind_shader(evs->machine, + shader->state.tokens, + PIPE_MAX_SAMPLERS, + NULL /*samplers*/ ); + evs->machine_tokens = shader->state.tokens; + } } |