diff options
| author | Dave Airlie <airlied@redhat.com> | 2011-06-21 15:18:44 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-06-21 15:18:44 +1000 |
| commit | e251b3903a6aadd49cec6a9ce1ce466e3fcbbdcd (patch) | |
| tree | e6c4a08a2f1112360619a9d27a54766195e05793 | |
| parent | 59a402cecd74e0a7a277f5af0b8a2707857846ed (diff) | |
r600g: use maths instead of a loop to work out mask.
This is equivalent results with less looping.
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | src/gallium/drivers/r600/r600_state_common.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c index 0fe0e3d5d6..30c61817a0 100644 --- a/src/gallium/drivers/r600/r600_state_common.c +++ b/src/gallium/drivers/r600/r600_state_common.c @@ -576,10 +576,7 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info) if (rctx->alpha_ref_dirty) r600_update_alpha_ref(rctx); - mask = 0; - for (int i = 0; i < rctx->framebuffer.nr_cbufs; i++) { - mask |= (0xF << (i * 4)); - } + mask = (1ULL << ((unsigned)rctx->framebuffer.nr_cbufs * 4)) - 1; if (rctx->vgt.id != R600_PIPE_STATE_VGT) { rctx->vgt.id = R600_PIPE_STATE_VGT; |