Color clamping fixes.

4 files changed, 40 insertions, 2 deletions

diff --git a/src/mesa/main/blend.c b/src/mesa/main/blend.c
index bf886af9e81..81bd4c2f320 100644
--- a/src/mesa/main/blend.c
+++ b/src/mesa/main/blend.c
@@ -516,6 +516,37 @@ _mesa_ColorMask( GLboolean red, GLboolean green,
 }
 
 
+extern void GLAPIENTRY
+_mesa_ClampColorARB(GLenum target, GLenum clamp)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (clamp != GL_TRUE && clamp != GL_FALSE && clamp != GL_FIXED_ONLY_ARB) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glClampColorARB(clamp)");
+      return;
+   }
+
+   switch (target) {
+   case GL_CLAMP_VERTEX_COLOR_ARB:
+      ctx->Light.ClampVertexColor = clamp;
+      break;
+   case GL_CLAMP_FRAGMENT_COLOR_ARB:
+      ctx->Color.ClampFragmentColor = clamp;
+      break;
+   case GL_CLAMP_READ_COLOR_ARB:
+      ctx->Color.ClampReadColor = clamp;
+      break;
+   default:
+      _mesa_error(ctx, GL_INVALID_ENUM, "glClampColorARB(target)");
+      return;
+   }
+}
+
+
+
+
 /**********************************************************************/
 /** \name Initialization */
 /*@{*/
diff --git a/src/mesa/main/blend.h b/src/mesa/main/blend.h
index d6c03d903f4..5c0f2783a73 100644
--- a/src/mesa/main/blend.h
+++ b/src/mesa/main/blend.h
@@ -5,9 +5,9 @@
 
 /*
  * Mesa 3-D graphics library
- * Version:  3.5
+ * Version:  6.5.2
  *
- * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -72,6 +72,11 @@ extern void GLAPIENTRY
 _mesa_ColorMask( GLboolean red, GLboolean green,
                  GLboolean blue, GLboolean alpha );
 
+
+extern void GLAPIENTRY
+_mesa_ClampColorARB(GLenum target, GLenum clamp);
+
+
 extern void  
 _mesa_init_color( GLcontext * ctx );
 
diff --git a/src/mesa/main/light.c b/src/mesa/main/light.c
index 63f88b7229f..984f7b2abc4 100644
--- a/src/mesa/main/light.c
+++ b/src/mesa/main/light.c
@@ -1340,6 +1340,7 @@ _mesa_init_lighting( GLcontext *ctx )
                                                NULL );
 
    ctx->Light.ColorMaterialEnabled = GL_FALSE;
+   ctx->Light.ClampVertexColor = GL_TRUE;
 
    /* Lighting miscellaneous */
    ctx->_ShineTabList = MALLOC_STRUCT( gl_shine_tab );
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index bedc8605992..5a326ff0dc9 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -888,6 +888,7 @@ struct gl_light_attrib
    GLenum ColorMaterialMode;		/**< GL_AMBIENT, GL_DIFFUSE, etc */
    GLbitfield ColorMaterialBitmask;	/**< bitmask formed from Face and Mode */
    GLboolean ColorMaterialEnabled;
+   GLenum ClampVertexColor;
 
    struct gl_light EnabledList;         /**< List sentinel */