Mesa (master): glsl: Add gl_Layer and gl_ViewportIndex builtins to fragment shader

[Chris Forbes]

Module: Mesa
Branch: master
Commit: b2c1f3a0198d2abf98e965a7a022ad8c9ec4f43c
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=b2c1f3a0198d2abf98e965a7a022ad8c9ec4f43c

Author: Chris Forbes <chrisf at ijw.co.nz>
Date:   Sat Jan 25 18:29:38 2014 +1300

glsl: Add gl_Layer and gl_ViewportIndex builtins to fragment shader

Signed-off-by: Chris Forbes <chrisf at ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>

---

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

diff --git a/src/glsl/builtin_variables.cpp b/src/glsl/builtin_variables.cpp
index e22b083..b9c69d2 100644
--- a/src/glsl/builtin_variables.cpp
+++ b/src/glsl/builtin_variables.cpp
@@ -938,6 +938,11 @@ builtin_variable_generator::generate_fs_special_vars()
    if (state->ARB_gpu_shader5_enable) {
       add_system_value(SYSTEM_VALUE_SAMPLE_MASK_IN, array(int_t, 1), "gl_SampleMaskIn");
    }
+
+   if (state->ARB_fragment_layer_viewport_enable) {
+      add_input(VARYING_SLOT_LAYER, int_t, "gl_Layer");
+      add_input(VARYING_SLOT_VIEWPORT, int_t, "gl_ViewportIndex");
+   }
 }