mesa/main: Make FEATURE_histogram follow feature conventions.

[mesa.git] / src / mesa / main / blend.c

diff --git a/src/mesa/main/blend.c b/src/mesa/main/blend.c
index 6741238aae1ff1d7108e8927c9b444600abebe7c..39cf6153e2850c3b6fc691f984317f26e7ff24af 100644 (file)
--- a/src/mesa/main/blend.c
+++ b/src/mesa/main/blend.c
@@ -5,9 +5,9 @@
 
 /*
  * Mesa 3-D graphics library
- * Version:  4.1
+ * Version:  6.5.1
  *
- * Copyright (C) 1999-2002  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"),
@@ -31,11 +31,11 @@
 
 #include "glheader.h"
 #include "blend.h"
-#include "colormac.h"
 #include "context.h"
 #include "enums.h"
 #include "macros.h"
 #include "mtypes.h"
+#include "glapi/glapitable.h"
 
 
 /**
@@ -45,19 +45,11 @@
  * \param dfactor destination factor operator.
  *
  * \sa glBlendFunc, glBlendFuncSeparateEXT
- *
- * Swizzles the inputs and calls \c glBlendFuncSeparateEXT.  This is done
- * using the \c CurrentDispatch table in the context, so this same function
- * can be used while compiling display lists.  Therefore, there is no need
- * for the display list code to save and restore this function.
  */
 void GLAPIENTRY
 _mesa_BlendFunc( GLenum sfactor, GLenum dfactor )
 {
-   GET_CURRENT_CONTEXT(ctx);
-
-   (*ctx->CurrentDispatch->BlendFuncSeparateEXT)( sfactor, dfactor,
-                                                 sfactor, dfactor );
+   _mesa_BlendFuncSeparateEXT(sfactor, dfactor, sfactor, dfactor);
 }
 
 
@@ -219,7 +211,7 @@ static GLboolean
 _mesa_validate_blend_equation( GLcontext *ctx,
                               GLenum mode, GLboolean is_separate )
 {
-       switch (mode) {
+   switch (mode) {
       case GL_FUNC_ADD:
          break;
       case GL_MIN:
@@ -275,17 +267,11 @@ _mesa_BlendEquation( GLenum mode )
    ctx->Color.BlendEquationRGB = mode;
    ctx->Color.BlendEquationA = mode;
 
-   /* This is needed to support 1.1's RGB logic ops AND
-    * 1.0's blending logicops.
-    */
-   ctx->Color._LogicOpEnabled = (ctx->Color.ColorLogicOpEnabled ||
-                                 (ctx->Color.BlendEnabled &&
-                                  mode == GL_LOGIC_OP));
-
    if (ctx->Driver.BlendEquationSeparate)
       (*ctx->Driver.BlendEquationSeparate)( ctx, mode, mode );
 }
 
+
 void GLAPIENTRY
 _mesa_BlendEquationSeparateEXT( GLenum modeRGB, GLenum modeA )
 {
@@ -322,12 +308,6 @@ _mesa_BlendEquationSeparateEXT( GLenum modeRGB, GLenum modeA )
    ctx->Color.BlendEquationRGB = modeRGB;
    ctx->Color.BlendEquationA = modeA;
 
-   /* This is needed to support 1.1's RGB logic ops AND
-    * 1.0's blending logicops.  This test is simplified over glBlendEquation
-    * because modeRGB cannot be GL_LOGIC_OP.
-    */
-   ctx->Color._LogicOpEnabled = (ctx->Color.ColorLogicOpEnabled);
-
    if (ctx->Driver.BlendEquationSeparate)
       (*ctx->Driver.BlendEquationSeparate)( ctx, modeRGB, modeA );
 }
@@ -527,12 +507,44 @@ _mesa_ColorMask( GLboolean red, GLboolean green,
       ctx->Driver.ColorMask( ctx, red, green, blue, alpha );
 }
 
+
+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 */
 /*@{*/
 
 /**
- * Initialization of the context color data.
+ * Initialization of the context's Color attribute group.
  *
  * \param ctx GL context.
  *
@@ -542,14 +554,13 @@ _mesa_ColorMask( GLboolean red, GLboolean green,
 void _mesa_init_color( GLcontext * ctx )
 {
    /* Color buffer group */
-   ctx->Color.IndexMask = 0xffffffff;
+   ctx->Color.IndexMask = ~0u;
    ctx->Color.ColorMask[0] = 0xff;
    ctx->Color.ColorMask[1] = 0xff;
    ctx->Color.ColorMask[2] = 0xff;
    ctx->Color.ColorMask[3] = 0xff;
    ctx->Color.ClearIndex = 0;
    ASSIGN_4V( ctx->Color.ClearColor, 0, 0, 0, 0 );
-   ctx->Color.DrawBuffer = GL_FRONT;
    ctx->Color.AlphaEnabled = GL_FALSE;
    ctx->Color.AlphaFunc = GL_ALWAYS;
    ctx->Color.AlphaRef = 0;
@@ -568,13 +579,14 @@ void _mesa_init_color( GLcontext * ctx )
    ctx->Color.DitherFlag = GL_TRUE;
 
    if (ctx->Visual.doubleBufferMode) {
-      ctx->Color.DrawBuffer = GL_BACK;
-      ctx->Color._DrawDestMask = BACK_LEFT_BIT;
+      ctx->Color.DrawBuffer[0] = GL_BACK;
    }
    else {
-      ctx->Color.DrawBuffer = GL_FRONT;
-      ctx->Color._DrawDestMask = FRONT_LEFT_BIT;
+      ctx->Color.DrawBuffer[0] = GL_FRONT;
    }
+
+   ctx->Color.ClampFragmentColor = GL_FIXED_ONLY_ARB;
+   ctx->Color.ClampReadColor = GL_FIXED_ONLY_ARB;
 }
 
 /*@}*/