t_split.h revision 01e04c3f 
1/*
2 * mesa 3-D graphics library
3 *
4 * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25/**
26 * \brief VBO builder module datatypes and definitions.
27 * \author Keith Whitwell
28 */
29
30
31/**
32 * \mainpage The TNL splitter
33 *
34 * This is the private data used internally to the _tnl_split_prims()
35 * helper function.  Nobody outside the _tnl_split* files needs to
36 * include or know about this structure.
37 */
38
39
40#ifndef _TNL_SPLIT_H
41#define _TNL_SPLIT_H
42
43#include "tnl.h"
44
45
46/* True if a primitive can be split without copying of vertices, false
47 * otherwise.
48 */
49GLboolean
50_tnl_split_prim_inplace(GLenum mode, GLuint *first, GLuint *incr);
51
52void
53_tnl_split_inplace(struct gl_context *ctx,
54                   const struct tnl_vertex_array arrays[],
55                   const struct _mesa_prim *prim,
56                   GLuint nr_prims,
57                   const struct _mesa_index_buffer *ib,
58                   GLuint min_index,
59                   GLuint max_index,
60                   tnl_draw_func draw,
61                   const struct split_limits *limits);
62
63/* Requires ib != NULL:
64 */
65void
66_tnl_split_copy(struct gl_context *ctx,
67                const struct tnl_vertex_array arrays[],
68                const struct _mesa_prim *prim,
69                GLuint nr_prims,
70                const struct _mesa_index_buffer *ib,
71                tnl_draw_func draw,
72                const struct split_limits *limits);
73
74#endif
75