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| author | Paul Berry <stereotype441@gmail.com> | 2011-08-25 13:27:57 -0700 |
|---|---|---|
| committer | Paul Berry <stereotype441@gmail.com> | 2011-09-06 11:05:25 -0700 |
| commit | 54a62f8806df29d79f1e630bae6d1f45fb15c69f (patch) | |
| tree | fe3804fbe0243c915c8f4020c397fae0b633df1e /src/mesa/drivers/dri/i965/brw_clip.h | |
| parent | 620f06b12600d509406543738ed8bff27715df2c (diff) | |
| download | external_mesa3d-54a62f8806df29d79f1e630bae6d1f45fb15c69f.zip external_mesa3d-54a62f8806df29d79f1e630bae6d1f45fb15c69f.tar.gz external_mesa3d-54a62f8806df29d79f1e630bae6d1f45fb15c69f.tar.bz2 | |
i965: clip: Add a function to determine whether a vert_result is in use.
Previously we would examine the offset[] array (since an offset of 0
meant "not in use"). This paves the way for removing the offset[]
array.
Reviewed-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_clip.h')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_clip.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_clip.h b/src/mesa/drivers/dri/i965/brw_clip.h index 0324fea..109a0b6 100644 --- a/src/mesa/drivers/dri/i965/brw_clip.h +++ b/src/mesa/drivers/dri/i965/brw_clip.h @@ -126,6 +126,15 @@ struct brw_clip_compile { #define ATTR_SIZE (4*4) +/** + * True if the given vert_result is one of the outputs of the vertex shader. + */ +static inline bool brw_clip_have_vert_result(struct brw_clip_compile *c, + GLuint vert_result) +{ + return (c->key.attrs & BITFIELD64_BIT(vert_result)) ? 1 : 0; +} + /* Points are only culled, so no need for a clip routine, however it * works out easier to have a dummy one. */ |