diff options
| author | Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> | 2020-08-20 11:45:38 -0400 |
|---|---|---|
| committer | Marge Bot <eric+marge@anholt.net> | 2020-08-24 11:42:34 +0000 |
| commit | e0554634592b4dd616bcc51d3e941f86e7bec044 (patch) | |
| tree | 45a7348b864ae9ec0aa79946afe0697721bb1036 | |
| parent | e05930511b7d3dafa36cc8d2dca51767edeff3b9 (diff) | |
gallium: Add util_blend_uses_dest helper
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6407>
| -rw-r--r-- | src/gallium/auxiliary/util/u_blend.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_blend.h b/src/gallium/auxiliary/util/u_blend.h index 7fca2fab6d1..7fccdb26d31 100644 --- a/src/gallium/auxiliary/util/u_blend.h +++ b/src/gallium/auxiliary/util/u_blend.h @@ -132,4 +132,14 @@ util_blend_factor_uses_dest(enum pipe_blendfactor factor, bool alpha) } } +static inline bool +util_blend_uses_dest(struct pipe_rt_blend_state rt) +{ + return rt.blend_enable && + (util_blend_factor_uses_dest(rt.rgb_src_factor, false) || + util_blend_factor_uses_dest(rt.alpha_src_factor, true) || + rt.rgb_dst_factor != PIPE_BLENDFACTOR_ZERO || + rt.alpha_dst_factor != PIPE_BLENDFACTOR_ZERO); +} + #endif /* U_BLEND_H */ |