[Mesa-dev] [PATCH 2/7] gallium: add GS_INVOCATIONS property

[Ilia Mirkin]

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---
 src/gallium/auxiliary/tgsi/tgsi_ureg.c     | 9 +++++++++
 src/gallium/include/pipe/p_shader_tokens.h | 3 ++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.c b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
index 38cce58..2bf93ee 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_ureg.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
@@ -1468,6 +1468,14 @@ static void emit_decls( struct ureg_program *ureg )
                     ureg->property_gs_max_vertices);
    }
 
+   if (ureg->property_gs_invocations != ~0) {
+      assert(ureg->processor == TGSI_PROCESSOR_GEOMETRY);
+
+      emit_property(ureg,
+                    TGSI_PROPERTY_GS_INVOCATIONS,
+                    ureg->property_gs_invocations);
+   }
+
    if (ureg->property_fs_coord_origin) {
       assert(ureg->processor == TGSI_PROCESSOR_FRAGMENT);
 
@@ -1757,6 +1765,7 @@ struct ureg_program *ureg_create( unsigned processor )
    ureg->property_gs_input_prim = ~0;
    ureg->property_gs_output_prim = ~0;
    ureg->property_gs_max_vertices = ~0;
+   ureg->property_gs_invocations = ~0;
 
    ureg->free_temps = util_bitmask_create();
    if (ureg->free_temps == NULL)
diff --git a/src/gallium/include/pipe/p_shader_tokens.h b/src/gallium/include/pipe/p_shader_tokens.h
index 1903d53..b537166 100644
--- a/src/gallium/include/pipe/p_shader_tokens.h
+++ b/src/gallium/include/pipe/p_shader_tokens.h
@@ -236,7 +236,8 @@ union tgsi_immediate_data
 #define TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS 5
 #define TGSI_PROPERTY_FS_DEPTH_LAYOUT        6
 #define TGSI_PROPERTY_VS_PROHIBIT_UCPS       7
-#define TGSI_PROPERTY_COUNT                  8
+#define TGSI_PROPERTY_GS_INVOCATIONS         8
+#define TGSI_PROPERTY_COUNT                  9
 
 struct tgsi_property {
    unsigned Type         : 4;  /**< TGSI_TOKEN_TYPE_PROPERTY */
-- 
1.8.3.2