src/mesa/main/blend.h

   1 /**
   2  * \file blend.h
   3  * Blending functions operations.
   4  */
   5
   6 /*
   7  * Mesa 3-D graphics library
   8  *
   9  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
  10  *
  11  * Permission is hereby granted, free of charge, to any person obtaining a
  12  * copy of this software and associated documentation files (the "Software"),
  13  * to deal in the Software without restriction, including without limitation
  14  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  15  * and/or sell copies of the Software, and to permit persons to whom the
  16  * Software is furnished to do so, subject to the following conditions:
  17  *
  18  * The above copyright notice and this permission notice shall be included
  19  * in all copies or substantial portions of the Software.
  20  *
  21  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  22  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  23  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  24  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  25  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  26  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  27  * OTHER DEALINGS IN THE SOFTWARE.
  28  */
  29
  30
  31
  32 #ifndef BLEND_H
  33 #define BLEND_H
  34
  35
  36 #include "glheader.h"
  37 #include "formats.h"
  38
  39 struct gl_context;
  40 struct gl_framebuffer;
  41
  42
  43 extern void GLAPIENTRY
  44 _mesa_BlendFunc( GLenum sfactor, GLenum dfactor );
  45
  46
  47 extern void GLAPIENTRY
  48 _mesa_BlendFuncSeparate( GLenum sfactorRGB, GLenum dfactorRGB,
  49                             GLenum sfactorA, GLenum dfactorA );
  50
  51
  52 extern void GLAPIENTRY
  53 _mesa_BlendFunciARB(GLuint buf, GLenum sfactor, GLenum dfactor);
  54
  55
  56 extern void GLAPIENTRY
  57 _mesa_BlendFuncSeparateiARB(GLuint buf, GLenum sfactorRGB, GLenum dfactorRGB,
  58                          GLenum sfactorA, GLenum dfactorA);
  59
  60
  61 extern void GLAPIENTRY
  62 _mesa_BlendEquation( GLenum mode );
  63
  64
  65 extern void GLAPIENTRY
  66 _mesa_BlendEquationiARB(GLuint buf, GLenum mode);
  67
  68
  69 extern void GLAPIENTRY
  70 _mesa_BlendEquationSeparate( GLenum modeRGB, GLenum modeA );
  71
  72
  73 extern void GLAPIENTRY
  74 _mesa_BlendEquationSeparateiARB(GLuint buf, GLenum modeRGB, GLenum modeA);
  75
  76
  77 extern void GLAPIENTRY
  78 _mesa_BlendColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
  79
  80
  81 extern void GLAPIENTRY
  82 _mesa_AlphaFunc( GLenum func, GLclampf ref );
  83
  84
  85 extern void GLAPIENTRY
  86 _mesa_LogicOp( GLenum opcode );
  87
  88
  89 extern void GLAPIENTRY
  90 _mesa_IndexMask( GLuint mask );
  91
  92 extern void GLAPIENTRY
  93 _mesa_ColorMask( GLboolean red, GLboolean green,
  94                  GLboolean blue, GLboolean alpha );
  95
  96 extern void GLAPIENTRY
  97 _mesa_ColorMaski( GLuint buf, GLboolean red, GLboolean green,
  98                         GLboolean blue, GLboolean alpha );
  99
 100
 101 extern void GLAPIENTRY
 102 _mesa_ClampColor(GLenum target, GLenum clamp);
 103
 104 extern GLboolean
 105 _mesa_get_clamp_fragment_color(const struct gl_context *ctx);
 106
 107 extern GLboolean
 108 _mesa_get_clamp_vertex_color(const struct gl_context *ctx,
 109                              const struct gl_framebuffer *drawFb);
 110
 111 extern GLboolean
 112 _mesa_get_clamp_read_color(const struct gl_context *ctx);
 113
 114 extern void
 115 _mesa_update_clamp_fragment_color(struct gl_context *ctx);
 116
 117 extern void
 118 _mesa_update_clamp_vertex_color(struct gl_context *ctx,
 119                                 const struct gl_framebuffer *drawFb);
 120
 121 extern mesa_format
 122 _mesa_get_render_format(const struct gl_context *ctx, mesa_format format);
 123
 124 extern void
 125 _mesa_init_color( struct gl_context * ctx );
 126
 127 #endif