v3d: Fix SRC_ALPHA_SATURATE blending for RTs without alpha.

Fixes dEQP-GLES3.functional.fragment_ops.blend.default_framebuffer.rgb_func_alpha_func.dst.src_alpha_saturate_src_alpha_saturate and friends with --deqp-egl-config-name=rgb565d0s0 Cc: "18.2" <mesa-stable@lists.freedesktop.org>
2018-09-06 13:37:37 -07:00
parent 69874e9a6a
commit f73f748323
1 changed files with 3 additions and 1 deletions
@@ -69,7 +69,9 @@ v3d_factor(enum pipe_blendfactor factor, bool dst_alpha_one)
        case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
                return V3D_BLEND_FACTOR_INV_CONST_ALPHA;
        case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
-                return V3D_BLEND_FACTOR_SRC_ALPHA_SATURATE;
+                return (dst_alpha_one ?
+                        V3D_BLEND_FACTOR_ZERO :
+                        V3D_BLEND_FACTOR_SRC_ALPHA_SATURATE);
        default:
                unreachable("Bad blend factor");
        }