1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
/*
* Copyright 2003 Tungsten Graphics, inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
* Keith Whitwell <keithw@tungstengraphics.com>
*/
#ifndef _TNL_VERTEX_H
#define _TNL_VERTEX_H
#include "mtypes.h"
#include "t_context.h"
/* New mechanism to specify hardware vertices so that tnl can build
* and manipulate them directly.
*/
/* It will probably be necessary to allow drivers to specify new
* emit-styles to cover all the wierd and wacky things out there.
*/
enum tnl_attr_format {
EMIT_1F,
EMIT_2F,
EMIT_3F,
EMIT_4F,
EMIT_2F_VIEWPORT, /* do viewport transform and emit */
EMIT_3F_VIEWPORT, /* do viewport transform and emit */
EMIT_4F_VIEWPORT, /* do viewport transform and emit */
EMIT_3F_XYW, /* for projective texture */
EMIT_1UB_1F, /* for fog coordinate */
EMIT_3UB_3F_RGB, /* for specular color */
EMIT_3UB_3F_BGR, /* for specular color */
EMIT_4UB_4F_RGBA, /* for color */
EMIT_4UB_4F_BGRA, /* for color */
EMIT_4CHAN_4F_RGBA, /* for swrast color */
EMIT_PAD, /* leave a hole of 'offset' bytes */
EMIT_MAX
};
struct tnl_attr_map {
GLuint attrib; /* _TNL_ATTRIB_ enum */
enum tnl_attr_format format;
GLuint offset;
};
/* Interpolate between two vertices to produce a third:
*/
extern void _tnl_interp( GLcontext *ctx,
GLfloat t,
GLuint edst, GLuint eout, GLuint ein,
GLboolean force_boundary );
/* Copy colors from one vertex to another:
*/
extern void _tnl_copy_pv( GLcontext *ctx, GLuint edst, GLuint esrc );
/* Extract a named attribute from a hardware vertex. Will have to
* reverse any viewport transformation, swizzling or other conversions
* which may have been applied:
*/
extern void _tnl_get_attr( GLcontext *ctx, const void *vertex, GLenum attrib,
GLfloat *dest );
/* Complementary to the above.
*/
extern void _tnl_set_attr( GLcontext *ctx, void *vout, GLenum attrib,
const GLfloat *src );
extern void *_tnl_get_vertex( GLcontext *ctx, GLuint nr );
/*
*/
extern GLuint _tnl_install_attrs( GLcontext *ctx,
const struct tnl_attr_map *map,
GLuint nr, const GLfloat *vp,
GLuint unpacked_size );
extern void _tnl_free_vertices( GLcontext *ctx );
extern void _tnl_init_vertices( GLcontext *ctx,
GLuint vb_size,
GLuint max_vertex_size );
extern void *_tnl_emit_vertices_to_buffer( GLcontext *ctx,
GLuint start,
GLuint end,
void *dest );
extern void _tnl_build_vertices( GLcontext *ctx,
GLuint start,
GLuint end,
GLuint newinputs );
extern void _tnl_invalidate_vertices( GLcontext *ctx, GLuint newinputs );
extern void _tnl_invalidate_vertex_state( GLcontext *ctx, GLuint new_state );
extern tnl_emit_func _tnl_codegen_emit( GLcontext *ctx );
#define REG_IN (0<<16)
#define REG_OUT (1<<16)
#define REG_VP (2<<16)
#define REG_TMP (3<<16)
#define REG_MASK (3<<16)
#define REG_OFFSET_MASK 0xffff
#define in( offset ) (REG_IN | (offset))
#define out( offset ) (REG_OUT | (offset))
#define vp( offset ) (REG_VP | (offset))
#define tmp( offset ) (REG_TMP | (offset))
extern void _tnl_init_c_codegen( struct tnl_clipspace_codegen *p );
#define GET_VERTEX_STATE(ctx) &(TNL_CONTEXT(ctx)->clipspace)
#endif
|
