1 /** 2 * \file accum.h 3 * Accumulation buffer operations. 4 * 5 * \if subset 6 * (No-op) 7 * 8 * \endif 9 */ 10 11 /* 12 * Mesa 3-D graphics library 13 * 14 * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. 15 * 16 * Permission is hereby granted, free of charge, to any person obtaining a 17 * copy of this software and associated documentation files (the "Software"), 18 * to deal in the Software without restriction, including without limitation 19 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 20 * and/or sell copies of the Software, and to permit persons to whom the 21 * Software is furnished to do so, subject to the following conditions: 22 * 23 * The above copyright notice and this permission notice shall be included 24 * in all copies or substantial portions of the Software. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 27 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 28 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 29 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 30 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 31 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 32 * OTHER DEALINGS IN THE SOFTWARE. 33 */ 34 35 36 37 #ifndef ACCUM_H 38 #define ACCUM_H 39 40 #include "main/glheader.h" 41 42 struct _glapi_table; 43 struct gl_context; 44 struct gl_renderbuffer; 45 46 extern void GLAPIENTRY 47 _mesa_ClearAccum( GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha ); 48 void GLAPIENTRY 49 _mesa_Accum( GLenum op, GLfloat value ); 50 51 extern void 52 _mesa_accum(struct gl_context *ctx, GLenum op, GLfloat value); 53 54 extern void 55 _mesa_clear_accum_buffer(struct gl_context *ctx); 56 57 extern void 58 _mesa_init_accum( struct gl_context *ctx ); 59 60 #endif /* ACCUM_H */ 61
