1848b8605Smrg/*
2848b8605Smrg * Mesa 3-D graphics library
3848b8605Smrg *
4848b8605Smrg * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.
5848b8605Smrg *
6848b8605Smrg * Permission is hereby granted, free of charge, to any person obtaining a
7848b8605Smrg * copy of this software and associated documentation files (the "Software"),
8848b8605Smrg * to deal in the Software without restriction, including without limitation
9848b8605Smrg * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10848b8605Smrg * and/or sell copies of the Software, and to permit persons to whom the
11848b8605Smrg * Software is furnished to do so, subject to the following conditions:
12848b8605Smrg *
13848b8605Smrg * The above copyright notice and this permission notice shall be included
14848b8605Smrg * in all copies or substantial portions of the Software.
15848b8605Smrg *
16848b8605Smrg * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17848b8605Smrg * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18848b8605Smrg * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19848b8605Smrg * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20848b8605Smrg * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21848b8605Smrg * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22848b8605Smrg * OTHER DEALINGS IN THE SOFTWARE.
23848b8605Smrg */
24848b8605Smrg
25848b8605Smrg
26848b8605Smrg#ifndef S_STENCIL_H
27848b8605Smrg#define S_STENCIL_H
28848b8605Smrg
29848b8605Smrg
30848b8605Smrg#include "main/mtypes.h"
31848b8605Smrg#include "s_span.h"
32848b8605Smrg
33848b8605Smrg
34848b8605Smrg
35848b8605Smrgextern GLboolean
36848b8605Smrg_swrast_stencil_and_ztest_span(struct gl_context *ctx, SWspan *span);
37848b8605Smrg
38848b8605Smrg
39848b8605Smrgextern void
40848b8605Smrg_swrast_read_stencil_span(struct gl_context *ctx, struct gl_renderbuffer *rb,
41848b8605Smrg                          GLint n, GLint x, GLint y, GLubyte stencil[]);
42848b8605Smrg
43848b8605Smrg
44848b8605Smrgextern void
45848b8605Smrg_swrast_write_stencil_span( struct gl_context *ctx, GLint n, GLint x, GLint y,
46848b8605Smrg                          const GLubyte stencil[] );
47848b8605Smrg
48848b8605Smrg
49848b8605Smrgextern void
50848b8605Smrg_swrast_clear_stencil_buffer(struct gl_context *ctx);
51848b8605Smrg
52848b8605Smrg
53848b8605Smrg#endif
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