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 * Version: 3.5 14 * 15 * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. 16 * 17 * Permission is hereby granted, free of charge, to any person obtaining a 18 * copy of this software and associated documentation files (the "Software"), 19 * to deal in the Software without restriction, including without limitation 20 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 21 * and/or sell copies of the Software, and to permit persons to whom the 22 * Software is furnished to do so, subject to the following conditions: 23 * 24 * The above copyright notice and this permission notice shall be included 25 * in all copies or substantial portions of the Software. 26 * 27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 28 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 29 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 30 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 31 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 33 */ 34 35 36 37 #ifndef ACCUM_H 38 #define ACCUM_H 39 40 #include "main/glheader.h" 41 #include "main/mfeatures.h" 42 43 struct _glapi_table; 44 struct gl_context; 45 struct gl_renderbuffer; 46 47 #if FEATURE_accum 48 49 extern void GLAPIENTRY 50 _mesa_ClearAccum( GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha ); 51 52 extern void 53 _mesa_init_accum_dispatch(struct _glapi_table *disp); 54 55 extern void 56 _mesa_accum(struct gl_context *ctx, GLenum op, GLfloat value); 57 58 extern void 59 _mesa_clear_accum_buffer(struct gl_context *ctx); 60 61 #else /* FEATURE_accum */ 62 63 #include "main/compiler.h" 64 65 static inline void 66 _mesa_ClearAccum( GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha ) 67 { 68 /* this is used in _mesa_PopAttrib */ 69 ASSERT_NO_FEATURE(); 70 } 71 72 static inline void 73 _mesa_init_accum_dispatch(struct _glapi_table *disp) 74 { 75 } 76 77 static inline void 78 _mesa_accum(struct gl_context *ctx, GLenum op, GLfloat value) 79 { 80 } 81 82 static inline void 83 _mesa_clear_accum_buffer(struct gl_context *ctx) 84 { 85 } 86 87 88 #endif /* FEATURE_accum */ 89 90 extern void 91 _mesa_init_accum( struct gl_context *ctx ); 92 93 #endif /* ACCUM_H */ 94