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glsl: Add gl_ViewportIndex built-in variable

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v2 (idr): Fix copy-and-paste bug... s/LAYER/VIEWPORT/

Signed-off-by: Courtney Goeltzenleuchter <courtney@LunarG.com>
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Courtney Goeltzenleuchter 2013-11-13 11:11:39 -07:00 • committed by Ian Romanick
parent 5439964270
commit c2eefb06aa
1 changed files with 2 additions and 0 deletions
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2
src/glsl/builtin_variables.cpp
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@ -780,6 +780,8 @@ void
builtin_variable_generator::generate_gs_special_vars()
{
add_output(VARYING_SLOT_LAYER, int_t, "gl_Layer");
if (state->ARB_viewport_array_enable)
add_output(VARYING_SLOT_VIEWPORT, int_t, "gl_ViewportIndex");
/* Although gl_PrimitiveID appears in tessellation control and tessellation
* evaluation shaders, it has a different function there than it has in