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
_mesa_ClearAccum(GLfloat red,GLfloat green,GLfloat blue,GLfloat alpha)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
_mesa_init_accum_dispatch(struct _glapi_table * disp)73 _mesa_init_accum_dispatch(struct _glapi_table *disp)
74 {
75 }
76
77 static inline void
_mesa_accum(struct gl_context * ctx,GLenum op,GLfloat value)78 _mesa_accum(struct gl_context *ctx, GLenum op, GLfloat value)
79 {
80 }
81
82 static inline void
_mesa_clear_accum_buffer(struct gl_context * ctx)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