Mesa (master): glsl: Expose gl_PointSize if OES/ EXT_tessellation_point_size is enabled.

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: 0eaa84e8af850b627345e473bb5a7cc9941cf2b8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0eaa84e8af850b627345e473bb5a7cc9941cf2b8

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Fri May 27 11:12:45 2016 -0700

glsl: Expose gl_PointSize if OES/EXT_tessellation_point_size is enabled.

Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>

---

 src/compiler/glsl/builtin_variables.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/compiler/glsl/builtin_variables.cpp b/src/compiler/glsl/builtin_variables.cpp
index 20d1d75..c9d8b1c 100644
--- a/src/compiler/glsl/builtin_variables.cpp
+++ b/src/compiler/glsl/builtin_variables.cpp
@@ -1263,7 +1263,11 @@ builtin_variable_generator::generate_varyings()
       if (!state->es_shader ||
           state->stage == MESA_SHADER_VERTEX ||
           (state->stage == MESA_SHADER_GEOMETRY &&
-           state->OES_geometry_point_size_enable)) {
+           state->OES_geometry_point_size_enable) ||
+          ((state->stage == MESA_SHADER_TESS_CTRL ||
+            state->stage == MESA_SHADER_TESS_EVAL) &&
+           (state->OES_tessellation_point_size_enable ||
+            state->EXT_tessellation_point_size_enable))) {
          add_varying(VARYING_SLOT_PSIZ, float_t, "gl_PointSize");
       }
    }