diff options
| author | Anuj Phogat <[email protected]> | 2016-10-25 11:56:07 -0700 |
|---|---|---|
| committer | Anuj Phogat <[email protected]> | 2016-11-07 16:13:02 -0800 |
| commit | a1bd2f6950f8ab8ab355fa5f7ff3d7bf372eab13 (patch) | |
| tree | babc526b231bf0dd39cc8a7dc6442de08db3a043 | |
| parent | 0295c792b4b47865ddf7760ebe2980fc6f7a536b (diff) | |
mesa: Add helper function _mesa_is_alpha_to_coverage_enabled()
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Ben Widawsky <[email protected]>
| -rw-r--r-- | src/mesa/main/framebuffer.c | 13 | ||||
| -rw-r--r-- | src/mesa/main/framebuffer.h | 3 |
2 files changed, 16 insertions, 0 deletions
diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c index 361ed668587..9c7f0c9451f 100644 --- a/src/mesa/main/framebuffer.c +++ b/src/mesa/main/framebuffer.c @@ -1016,3 +1016,16 @@ _mesa_is_alpha_test_enabled(const struct gl_context *ctx) bool buffer0_is_integer = ctx->DrawBuffer->_IntegerBuffers & 0x1; return (ctx->Color.AlphaEnabled && !buffer0_is_integer); } + +/** + * Is alpha to coverage enabled and applicable to the currently bound + * framebuffer? + */ +bool +_mesa_is_alpha_to_coverage_enabled(const struct gl_context *ctx) +{ + bool buffer0_is_integer = ctx->DrawBuffer->_IntegerBuffers & 0x1; + return (ctx->Multisample.SampleAlphaToCoverage && + _mesa_is_multisample_enabled(ctx) && + !buffer0_is_integer); +} diff --git a/src/mesa/main/framebuffer.h b/src/mesa/main/framebuffer.h index a6adb1c9661..745c1dabf64 100644 --- a/src/mesa/main/framebuffer.h +++ b/src/mesa/main/framebuffer.h @@ -152,4 +152,7 @@ _mesa_is_multisample_enabled(const struct gl_context *ctx); extern bool _mesa_is_alpha_test_enabled(const struct gl_context *ctx); +extern bool +_mesa_is_alpha_to_coverage_enabled(const struct gl_context *ctx); + #endif /* FRAMEBUFFER_H */ |