radeonsi: don't force gl_SampleMaskIn to 1 for smoothing

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index d9006bc3d6a543b1ae53a10379908c126474251d..68ce3871b7ec997b2941ca126def067c294cfaf5 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -1057,7 +1057,6 @@ static void declare_system_value(
        struct si_shader_context *si_shader_ctx =
                si_shader_context(&radeon_bld->soa.bld_base);
        struct lp_build_context *bld = &radeon_bld->soa.bld_base.base;
-       struct lp_build_context *uint_bld = &radeon_bld->soa.bld_base.uint_bld;
        struct gallivm_state *gallivm = &radeon_bld->gallivm;
        LLVMValueRef value = 0;
 
@@ -1133,12 +1132,10 @@ static void declare_system_value(
        }
 
        case TGSI_SEMANTIC_SAMPLEMASK:
-               /* Smoothing isn't MSAA in GL, but it's MSAA in hardware.
-                * Therefore, force gl_SampleMaskIn to 1 for GL. */
-               if (si_shader_ctx->shader->key.ps.poly_line_smoothing)
-                       value = uint_bld->one;
-               else
-                       value = LLVMGetParam(radeon_bld->main_fn, SI_PARAM_SAMPLE_COVERAGE);
+               /* This can only occur with the OpenGL Core profile, which
+                * doesn't support smoothing.
+                */
+               value = LLVMGetParam(radeon_bld->main_fn, SI_PARAM_SAMPLE_COVERAGE);
                break;
 
        case TGSI_SEMANTIC_TESSCOORD: