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  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.  
  41.  
  42. extern void GLAPIENTRY
  43. _mesa_BlendFunc( GLenum sfactor, GLenum dfactor );
  44.  
  45.  
  46. extern void GLAPIENTRY
  47. _mesa_BlendFuncSeparate( GLenum sfactorRGB, GLenum dfactorRGB,
  48.                             GLenum sfactorA, GLenum dfactorA );
  49.  
  50.  
  51. extern void GLAPIENTRY
  52. _mesa_BlendFunciARB(GLuint buf, GLenum sfactor, GLenum dfactor);
  53.  
  54.  
  55. extern void GLAPIENTRY
  56. _mesa_BlendFuncSeparateiARB(GLuint buf, GLenum sfactorRGB, GLenum dfactorRGB,
  57.                          GLenum sfactorA, GLenum dfactorA);
  58.  
  59.  
  60. extern void GLAPIENTRY
  61. _mesa_BlendEquation( GLenum mode );
  62.  
  63.  
  64. extern void GLAPIENTRY
  65. _mesa_BlendEquationiARB(GLuint buf, GLenum mode);
  66.  
  67.  
  68. extern void GLAPIENTRY
  69. _mesa_BlendEquationSeparate( GLenum modeRGB, GLenum modeA );
  70.  
  71.  
  72. extern void GLAPIENTRY
  73. _mesa_BlendEquationSeparateiARB(GLuint buf, GLenum modeRGB, GLenum modeA);
  74.  
  75.  
  76. extern void GLAPIENTRY
  77. _mesa_BlendColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
  78.  
  79.  
  80. extern void GLAPIENTRY
  81. _mesa_AlphaFunc( GLenum func, GLclampf ref );
  82.  
  83.  
  84. extern void GLAPIENTRY
  85. _mesa_LogicOp( GLenum opcode );
  86.  
  87.  
  88. extern void GLAPIENTRY
  89. _mesa_IndexMask( GLuint mask );
  90.  
  91. extern void GLAPIENTRY
  92. _mesa_ColorMask( GLboolean red, GLboolean green,
  93.                  GLboolean blue, GLboolean alpha );
  94.  
  95. extern void GLAPIENTRY
  96. _mesa_ColorMaski( GLuint buf, GLboolean red, GLboolean green,
  97.                         GLboolean blue, GLboolean alpha );
  98.  
  99.  
  100. extern void GLAPIENTRY
  101. _mesa_ClampColor(GLenum target, GLenum clamp);
  102.  
  103. extern GLboolean
  104. _mesa_get_clamp_fragment_color(const struct gl_context *ctx);
  105.  
  106. extern GLboolean
  107. _mesa_get_clamp_vertex_color(const struct gl_context *ctx);
  108.  
  109. extern GLboolean
  110. _mesa_get_clamp_read_color(const struct gl_context *ctx);
  111.  
  112. extern void
  113. _mesa_update_clamp_fragment_color(struct gl_context *ctx);
  114.  
  115. extern void
  116. _mesa_update_clamp_vertex_color(struct gl_context *ctx);
  117.  
  118. extern gl_format
  119. _mesa_get_render_format(const struct gl_context *ctx, gl_format format);
  120.  
  121. extern void  
  122. _mesa_init_color( struct gl_context * ctx );
  123.  
  124. #endif
  125.