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 const struct gl_framebuffer *drawFb); 107 108 extern GLboolean 109 _mesa_get_clamp_vertex_color(const struct gl_context *ctx, 110 const struct gl_framebuffer *drawFb); 111 112 extern GLboolean 113 _mesa_get_clamp_read_color(const struct gl_context *ctx, 114 const struct gl_framebuffer *readFb); 115 116 extern void 117 _mesa_update_clamp_fragment_color(struct gl_context *ctx, 118 const struct gl_framebuffer *drawFb); 119 120 extern void 121 _mesa_update_clamp_vertex_color(struct gl_context *ctx, 122 const struct gl_framebuffer *drawFb); 123 124 extern mesa_format 125 _mesa_get_render_format(const struct gl_context *ctx, mesa_format format); 126 127 extern void 128 _mesa_init_color( struct gl_context * ctx ); 129 130 #endif 131