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| author | Dave Airlie <airlied@redhat.com> | 2012-03-24 14:28:03 +0000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-04-13 17:19:02 +0100 |
| commit | c59d32d1ce9eee7bf0dcebfca1e69edbda90c22d (patch) | |
| tree | 9b8d1cf6475db7f4b88b4dbfb0f4094b5b0453f8 | |
| parent | a21df965075f6fa1bf27039490ad65b9f78548e6 (diff) | |
| download | external_mesa3d-c59d32d1ce9eee7bf0dcebfca1e69edbda90c22d.zip external_mesa3d-c59d32d1ce9eee7bf0dcebfca1e69edbda90c22d.tar.gz external_mesa3d-c59d32d1ce9eee7bf0dcebfca1e69edbda90c22d.tar.bz2 | |
util: add dual blend helper function (v2)
This is just a function to tell if a certain blend mode requires dual sources.
v2: move to inlines as per Brian's suggestion
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | src/gallium/auxiliary/util/u_dual_blend.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_dual_blend.h b/src/gallium/auxiliary/util/u_dual_blend.h new file mode 100644 index 0000000..e31d43c --- /dev/null +++ b/src/gallium/auxiliary/util/u_dual_blend.h @@ -0,0 +1,26 @@ +#ifndef U_DUAL_BLEND_H +#define U_DUAL_BLEND_H + +#include "pipe/p_state.h" + +static INLINE boolean util_blend_factor_is_dual_src(int factor) +{ + return (factor == PIPE_BLENDFACTOR_SRC1_COLOR) || + (factor == PIPE_BLENDFACTOR_SRC1_ALPHA) || + (factor == PIPE_BLENDFACTOR_INV_SRC1_COLOR) || + (factor == PIPE_BLENDFACTOR_INV_SRC1_ALPHA); +} + +static INLINE boolean util_blend_state_is_dual(const struct pipe_blend_state *blend, + int index) +{ + if (util_blend_factor_is_dual_src(blend->rt[index].rgb_src_factor) || + util_blend_factor_is_dual_src(blend->rt[index].alpha_src_factor) || + util_blend_factor_is_dual_src(blend->rt[index].rgb_dst_factor) || + util_blend_factor_is_dual_src(blend->rt[index].alpha_dst_factor)) + return true; + return false; +} + + +#endif |