diff options
| author | Kenneth Graunke <kenneth@whitecape.org> | 2015-05-15 10:08:19 -0700 |
|---|---|---|
| committer | Kenneth Graunke <kenneth@whitecape.org> | 2015-09-03 22:31:04 -0700 |
| commit | 0e23c246c0eb84bd46dfdfe6babe3762e49c58d2 (patch) | |
| tree | 8b48088c7dde14968ef3beef0b6b350cc5c7e3e0 | |
| parent | 6e03377daf90c6f6ac953a08e3a8f8f5caf9abf6 (diff) | |
i965: Optimize VUE map comparisons.
The entire VUE map is computed based on the slots_valid bitfield;
calling brw_compute_vue_map on the same bitfield will return the
same result. So we can simply compare those.
struct brw_vue_map is 136 bytes; doing a single 8-byte comparison is
much cheaper and should work just as well.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_gs.c | 4 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vs.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_gs.c b/src/mesa/drivers/dri/i965/brw_gs.c index 04d9f3f25d9..16ea6846285 100644 --- a/src/mesa/drivers/dri/i965/brw_gs.c +++ b/src/mesa/drivers/dri/i965/brw_gs.c @@ -356,8 +356,8 @@ brw_upload_gs_prog(struct brw_context *brw) } brw->gs.base.prog_data = &brw->gs.prog_data->base.base; - if (memcmp(&brw->gs.prog_data->base.vue_map, &brw->vue_map_geom_out, - sizeof(brw->vue_map_geom_out)) != 0) { + if (brw->gs.prog_data->base.vue_map.slots_valid != + brw->vue_map_geom_out.slots_valid) { brw->vue_map_geom_out = brw->gs.prog_data->base.vue_map; brw->ctx.NewDriverState |= BRW_NEW_VUE_MAP_GEOM_OUT; } diff --git a/src/mesa/drivers/dri/i965/brw_vs.c b/src/mesa/drivers/dri/i965/brw_vs.c index 05457d4a3fe..4e0d34f6c6f 100644 --- a/src/mesa/drivers/dri/i965/brw_vs.c +++ b/src/mesa/drivers/dri/i965/brw_vs.c @@ -368,8 +368,8 @@ brw_upload_vs_prog(struct brw_context *brw) } brw->vs.base.prog_data = &brw->vs.prog_data->base.base; - if (memcmp(&brw->vs.prog_data->base.vue_map, &brw->vue_map_geom_out, - sizeof(brw->vue_map_geom_out)) != 0) { + if (brw->vs.prog_data->base.vue_map.slots_valid != + brw->vue_map_geom_out.slots_valid) { brw->vue_map_vs = brw->vs.prog_data->base.vue_map; brw->ctx.NewDriverState |= BRW_NEW_VUE_MAP_VS; if (brw->gen < 6) { |