diff options
author | Eric Anholt <eric@anholt.net> | 2008-11-02 12:19:02 -0800 |
---|---|---|
committer | Alan Hourihane <alanh@tungstengraphics.com> | 2008-11-03 14:27:08 +0000 |
commit | df07db810410474680faf07741d9d2ef71083b62 (patch) | |
tree | e7a3b8b251a4991a7fe1db037bea96cecbedf038 /src | |
parent | ba644d2711f45c3c2ae47f7aaf3b6b0db3f12147 (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')
-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 0b6c6b2a0a..ed0e1d5273 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; |