From 876e16562bad6fe60c50900f22cda95baeb4bb3d Mon Sep 17 00:00:00 2001 From: Matt Turner Date: Wed, 22 May 2013 10:56:25 -0700 Subject: [PATCH] glsl: Add gl_{Max,Min}ProgramTexelOffset built-in constants. 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. Reviewed-by: Kenneth Graunke --- 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 4bb361c2e45..f4ac20543b8 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); + } } -- 2.30.2