Signed-off-by: Ilia Mirkin <imir...@alum.mit.edu>
---
src/glsl/builtin_variables.cpp | 3 +++
src/glsl/shader_enums.h | 1 +
src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 1 +
3 files changed, 5 insertions(+)
diff --git a/src/glsl/builtin_variables.cpp b/src/glsl/builtin_variables.cpp
index b5e2908..7ea5db8 100644
--- a/src/glsl/builtin_variables.cpp
+++ b/src/glsl/builtin_variables.cpp
@@ -1050,6 +1050,9 @@ builtin_variable_generator::generate_fs_special_vars()
add_input(VARYING_SLOT_LAYER, int_t, "gl_Layer");
add_input(VARYING_SLOT_VIEWPORT, int_t, "gl_ViewportIndex");
}
+
+ if (state->is_version(450, 310))
+ add_system_value(SYSTEM_VALUE_FRAG_HELPER, bool_t,
"gl_HelperInvocation");
}
diff --git a/src/glsl/shader_enums.h b/src/glsl/shader_enums.h
index 7c598b6..6bc93a5 100644
--- a/src/glsl/shader_enums.h
+++ b/src/glsl/shader_enums.h
@@ -352,6 +352,7 @@ typedef enum
SYSTEM_VALUE_SAMPLE_ID,
SYSTEM_VALUE_SAMPLE_POS,
SYSTEM_VALUE_SAMPLE_MASK_IN,
+ SYSTEM_VALUE_FRAG_HELPER,
/*@}*/
/**
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index c3a8c11..fc728d1 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -4614,6 +4614,7 @@ const unsigned _mesa_sysval_to_semantic[SYSTEM_VALUE_MAX]
= {
TGSI_SEMANTIC_SAMPLEID,
TGSI_SEMANTIC_SAMPLEPOS,
TGSI_SEMANTIC_SAMPLEMASK,
+ 0, /* gl_HelperInvocation */
/* Tessellation shaders
*/
--
2.4.6
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