st/mesa: Add support for ARB_post_depth_coverage

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index f3db7026d47aff74689c3ca0757e71da6cc8572c..76741564320708016939ade2e40a2c7dfcaca1b9 100644 (file)
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -600,6 +600,7 @@ void st_init_extensions(struct pipe_screen *screen,
       { o(ARB_occlusion_query2),             PIPE_CAP_OCCLUSION_QUERY                  },
       { o(ARB_pipeline_statistics_query),    PIPE_CAP_QUERY_PIPELINE_STATISTICS        },
       { o(ARB_point_sprite),                 PIPE_CAP_POINT_SPRITE                     },
+      { o(ARB_post_depth_coverage),          PIPE_CAP_POST_DEPTH_COVERAGE              },
       { o(ARB_query_buffer_object),          PIPE_CAP_QUERY_BUFFER_OBJECT              },
       { o(ARB_robust_buffer_access_behavior), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR   },
       { o(ARB_sample_shading),               PIPE_CAP_SAMPLE_SHADING                   },

diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 76cd4dc3a5e11e8dd55f02cab1bc8fa50ba78afa..ea9585769e71446c977e65e9f9264e1e5456b12f 100644 (file)
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -6376,9 +6376,14 @@ st_translate_program(
    }
 
    if (procType == PIPE_SHADER_FRAGMENT) {
-      if (program->shader->Program->info.fs.early_fragment_tests)
+      if (program->shader->Program->info.fs.early_fragment_tests ||
+          program->shader->Program->info.fs.post_depth_coverage) {
          ureg_property(ureg, TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL, 1);
 
+         if (program->shader->Program->info.fs.post_depth_coverage)
+            ureg_property(ureg, TGSI_PROPERTY_FS_POST_DEPTH_COVERAGE, 1);
+      }
+
       if (proginfo->info.inputs_read & VARYING_BIT_POS) {
           /* Must do this after setting up t->inputs. */
           emit_wpos(st_context(ctx), t, proginfo, ureg,