diff options
| -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 */ |