st/mesa: expose GL_ARB_shader_group_vote when supported by backend

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Dave Airlie <airlied@redhat.com>

diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 383983b..13b0acc 100644 (file)
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -597,6 +597,7 @@ void st_init_extensions(struct pipe_screen *screen,
       { o(ARB_sample_shading),               PIPE_CAP_SAMPLE_SHADING                   },
       { o(ARB_seamless_cube_map),            PIPE_CAP_SEAMLESS_CUBE_MAP                },
       { o(ARB_shader_draw_parameters),       PIPE_CAP_DRAW_PARAMETERS                  },
+      { o(ARB_shader_group_vote),            PIPE_CAP_TGSI_VOTE                        },
       { o(ARB_shader_stencil_export),        PIPE_CAP_SHADER_STENCIL_EXPORT            },
       { o(ARB_shader_texture_image_samples), PIPE_CAP_TGSI_TXQS                        },
       { o(ARB_shader_texture_lod),           PIPE_CAP_SM3                              },

diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 92b0f8c..634d3a5 100644 (file)
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -2235,6 +2235,16 @@ glsl_to_tgsi_visitor::visit_expression(ir_expression* ir, st_src_reg *op)
       break;
    }
 
+   case ir_unop_vote_any:
+      emit_asm(ir, TGSI_OPCODE_VOTE_ANY, result_dst, op[0]);
+      break;
+   case ir_unop_vote_all:
+      emit_asm(ir, TGSI_OPCODE_VOTE_ALL, result_dst, op[0]);
+      break;
+   case ir_unop_vote_eq:
+      emit_asm(ir, TGSI_OPCODE_VOTE_EQ, result_dst, op[0]);
+      break;
+
    case ir_unop_pack_snorm_2x16:
    case ir_unop_pack_unorm_2x16:
    case ir_unop_pack_snorm_4x8:
@@ -2251,10 +2261,6 @@ glsl_to_tgsi_visitor::visit_expression(ir_expression* ir, st_src_reg *op)
    case ir_binop_carry:
    case ir_binop_borrow:
    case ir_unop_ssbo_unsized_array_length:
-
-   case ir_unop_vote_any:
-   case ir_unop_vote_all:
-   case ir_unop_vote_eq:
       /* This operation is not supported, or should have already been handled.
        */
       assert(!"Invalid ir opcode in glsl_to_tgsi_visitor::visit()");