Required by ARB_shading_language_420pack. Note that the 420pack spec
incorrectly specifies their values as (Min, Max) = (-7, 8) when they
should be (-8, 7) as listed in the GLSL 4.30 and ESSL 3.0 specs.
---
src/glsl/builtin_variables.cpp | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/glsl/builtin_variables.cpp b/src/glsl/builtin_variables.cpp
index 4bb361c..f4ac205 100644
--- a/src/glsl/builtin_variables.cpp
+++ b/src/glsl/builtin_variables.cpp
@@ -790,6 +790,13 @@ generate_130_uniforms(exec_list *instructions,
state->Const.MaxClipPlanes);
add_builtin_constant(instructions, symtab, "gl_MaxVaryingComponents",
state->Const.MaxVaryingFloats);
+
+ if (state->ARB_shading_language_420pack_enable) {
+ add_builtin_constant(instructions, symtab, "gl_MinProgramTexelOffset",
+ state->Const.MinProgramTexelOffset);
+ add_builtin_constant(instructions, symtab, "gl_MaxProgramTexelOffset",
+ state->Const.MaxProgramTexelOffset);
+ }
}
--
1.8.1.5
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