src/mesa/main/blend.h

   1 /* $Id: blend.h,v 1.1 1999/08/19 00:55:41 jtg Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.1
   6  *
   7  * Copyright (C) 1999  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27
  28
  29
  30
  31 #ifndef BLEND_H
  32 #define BLEND_H
  33
  34
  35 #include "types.h"
  36
  37
  38
  39 extern void
  40 gl_blend_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
  41                GLubyte rgba[][4], const GLubyte mask[] );
  42
  43
  44 extern void
  45 gl_blend_pixels( GLcontext *ctx,
  46                  GLuint n, const GLint x[], const GLint y[],
  47                  GLubyte rgba[][4], const GLubyte mask[] );
  48
  49
  50 extern void
  51 gl_BlendFunc( GLcontext *ctx, GLenum sfactor, GLenum dfactor );
  52
  53
  54 extern void
  55 gl_BlendFuncSeparate( GLcontext *ctx, GLenum sfactorRGB, GLenum dfactorRGB,
  56                       GLenum sfactorA, GLenum dfactorA );
  57
  58
  59 extern void
  60 gl_BlendEquation( GLcontext *ctx, GLenum mode );
  61
  62
  63 extern void
  64 gl_BlendColor( GLcontext *ctx, GLclampf red, GLclampf green,
  65                GLclampf blue, GLclampf alpha );
  66
  67
  68 #endif