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fixed extension checking in _mesa_BlendEquation()

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Brian Paul
2001-02-26 22:07:03 +00:00
parent 511378b05d
commit 806e20f463
1 changed files with 13 additions and 6 deletions
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src/mesa/main/blend.c
+13 -6
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@@ -1,10 +1,10 @@
/* $Id: blend.c,v 1.27 2000/12/26 05:09:27 keithw Exp $ */
/* $Id: blend.c,v 1.28 2001/02/26 22:07:03 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.5
*
* Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2001 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"),
@@ -25,7 +25,6 @@
*/
#ifdef PC_HEADER
#include "all.h"
#else
@@ -272,18 +271,26 @@ _mesa_BlendEquation( GLenum mode )
gl_lookup_enum_by_nr(mode));
switch (mode) {
case GL_FUNC_ADD_EXT:
break;
case GL_MIN_EXT:
case GL_MAX_EXT:
case GL_FUNC_ADD_EXT:
if (!ctx->Extensions.EXT_blend_minmax) {
if (!ctx->Extensions.EXT_blend_minmax &&
!ctx->Extensions.ARB_imaging) {
gl_error(ctx, GL_INVALID_ENUM, "glBlendEquation");
return;
}
break;
case GL_LOGIC_OP:
if (!ctx->Extensions.EXT_blend_logic_op) {
gl_error(ctx, GL_INVALID_ENUM, "glBlendEquation");
return;
}
break;
case GL_FUNC_SUBTRACT_EXT:
case GL_FUNC_REVERSE_SUBTRACT_EXT:
if (!ctx->Extensions.EXT_blend_subtract) {
if (!ctx->Extensions.EXT_blend_subtract &&
!ctx->Extensions.ARB_imaging) {
gl_error(ctx, GL_INVALID_ENUM, "glBlendEquation");
return;
}