3 * Accumulation buffer operations.
12 * Mesa 3-D graphics library
14 * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
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:
23 * The above copyright notice and this permission notice shall be included
24 * in all copies or substantial portions of the Software.
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.
40 #include "main/glheader.h"
44 struct gl_renderbuffer
;
46 extern void GLAPIENTRY
47 _mesa_ClearAccum( GLfloat red
, GLfloat green
, GLfloat blue
, GLfloat alpha
);
49 _mesa_Accum( GLenum op
, GLfloat value
);
52 _mesa_accum(struct gl_context
*ctx
, GLenum op
, GLfloat value
);
55 _mesa_clear_accum_buffer(struct gl_context
*ctx
);
58 _mesa_init_accum( struct gl_context
*ctx
);