From 3b82ceec677e875d2f2f9edbcfceafd4d9a85cb7 Mon Sep 17 00:00:00 2001
From: Brian Paul <brianp@vmware.com>
Date: Thu, 28 Oct 2010 21:17:42 -0600
Subject: [PATCH] mesa: state/queries for GL_MIN/MAX_PROGRAM_TEXEL_OFFSET_EXT

---
 src/mesa/main/context.c |  4 ++++
 src/mesa/main/get.c     | 13 +++++++++++++
 src/mesa/main/mtypes.h  |  3 +++
 3 files changed, 20 insertions(+)

diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 3ebe54926ff..eab35e7b8b6 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -620,6 +620,10 @@ _mesa_init_constants(struct gl_context *ctx)
 
    /* GL 3.2: hard-coded for now: */
    ctx->Const.ProfileMask = GL_CONTEXT_COMPATIBILITY_PROFILE_BIT;
+
+   /** GL_EXT_gpu_shader4 */
+   ctx->Const.MinProgramTexelOffset = -8;
+   ctx->Const.MaxProgramTexelOffset = 7;
 }
 
 
diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index da9df27bdb6..870c5d76f0a 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -266,6 +266,11 @@ static const int extra_EXT_texture_integer[] = {
    EXTRA_END
 };
 
+static const int extra_EXT_gpu_shader4[] = {
+   EXT(EXT_gpu_shader4),
+   EXTRA_END
+};
+
 
 EXTRA_EXT(ARB_multitexture);
 EXTRA_EXT(ARB_texture_cube_map);
@@ -1198,6 +1203,14 @@ static const struct value_desc values[] = {
      CONTEXT_INT(Const.GeometryProgram.MaxVertexVaryingComponents),
      extra_ARB_geometry_shader4 },
 
+   /* GL_EXT_gpu_shader4 / GL 3.0 */
+   { GL_MIN_PROGRAM_TEXEL_OFFSET,
+     CONTEXT_INT(Const.MinProgramTexelOffset),
+     extra_EXT_gpu_shader4 },
+   { GL_MAX_PROGRAM_TEXEL_OFFSET,
+     CONTEXT_INT(Const.MaxProgramTexelOffset),
+     extra_EXT_gpu_shader4 },
+
    /* GL 3.0 */
    { GL_NUM_EXTENSIONS, LOC_CUSTOM, TYPE_INT, 0, extra_version_30 },
    { GL_MAJOR_VERSION, CONTEXT_INT(VersionMajor), extra_version_30 },
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 1d775cbad5d..f8060f32de8 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2625,6 +2625,9 @@ struct gl_constants
    GLuint MaxTransformFeedbackSeparateAttribs;
    GLuint MaxTransformFeedbackSeparateComponents;
    GLuint MaxTransformFeedbackInterleavedComponents;
+
+   /** GL_EXT_gpu_shader4 */
+   GLint MinProgramTexelOffset, MaxProgramTexelOffset;
 };
 
 
-- 
2.30.2