diff options
author | Eric Anholt <eric@anholt.net> | 2008-11-02 12:19:02 -0800 |
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committer | Eric Anholt <eric@anholt.net> | 2008-11-02 12:30:01 -0800 |
commit | 9fd4c27ae3e189df804b86843a6aad0e70640533 (patch) | |
tree | 57f6fe77b18f9e5ee14c4533182a17d93cd4af8c /src/mesa/drivers | |
parent | 34b1776e8d965605d12807884c9c447214d57281 (diff) |
i965: Avoid vs header computation for negative rhw on G4X.
This cuts one MOV out when setting a zero header.
Diffstat (limited to 'src/mesa/drivers')
-rw-r--r-- | src/mesa/drivers/dri/i965/brw_vs_emit.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vs_emit.c b/src/mesa/drivers/dri/i965/brw_vs_emit.c index 0b6c6b2a0af..ed0e1d5273c 100644 --- a/src/mesa/drivers/dri/i965/brw_vs_emit.c +++ b/src/mesa/drivers/dri/i965/brw_vs_emit.c @@ -829,12 +829,12 @@ static void emit_vertex_write( struct brw_vs_compile *c) ndc = pos; } - /* This includes the workaround for -ve rhw, so is no longer an - * optional step: + /* Update the header for point size, user clipping flags, and -ve rhw + * workaround. */ if ((c->prog_data.outputs_written & (1<<VERT_RESULT_PSIZ)) || c->key.nr_userclip || - !c->key.know_w_is_one) + (!BRW_IS_G4X(p->brw) && !c->key.know_w_is_one)) { struct brw_reg header1 = retype(get_tmp(c), BRW_REGISTER_TYPE_UD); GLuint i; |