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
149
150
151
152
153
154
|
/*
* Mesa 3-D graphics library
* Version: 7.1
*
* Copyright (C) 1999-2007 Brian Paul 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
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS 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.
*/
#ifndef PROG_STATEVARS_H
#define PROG_STATEVARS_H
#include "main/glheader.h"
#ifdef __cplusplus
extern "C" {
#endif
struct gl_context;
struct gl_program_parameter_list;
/**
* Number of STATE_* values we need to address any GL state.
* Used to dimension arrays.
*/
#define STATE_LENGTH 5
/**
* Used for describing GL state referenced from inside ARB vertex and
* fragment programs.
* A string such as "state.light[0].ambient" gets translated into a
* sequence of tokens such as [ STATE_LIGHT, 0, STATE_AMBIENT ].
*
* For state that's an array, like STATE_CLIPPLANE, the 2nd token [1] should
* always be the array index.
*/
typedef enum gl_state_index_ {
STATE_MATERIAL = 100, /* start at 100 so small ints are seen as ints */
STATE_LIGHT,
STATE_LIGHTMODEL_AMBIENT,
STATE_LIGHTMODEL_SCENECOLOR,
STATE_LIGHTPROD,
STATE_TEXGEN,
STATE_FOG_COLOR,
STATE_FOG_PARAMS,
STATE_CLIPPLANE,
STATE_POINT_SIZE,
STATE_POINT_ATTENUATION,
STATE_MODELVIEW_MATRIX,
STATE_PROJECTION_MATRIX,
STATE_MVP_MATRIX,
STATE_TEXTURE_MATRIX,
STATE_PROGRAM_MATRIX,
STATE_MATRIX_INVERSE,
STATE_MATRIX_TRANSPOSE,
STATE_MATRIX_INVTRANS,
STATE_AMBIENT,
STATE_DIFFUSE,
STATE_SPECULAR,
STATE_EMISSION,
STATE_SHININESS,
STATE_HALF_VECTOR,
STATE_POSITION, /**< xyzw = position */
STATE_ATTENUATION, /**< xyz = attenuation, w = spot exponent */
STATE_SPOT_DIRECTION, /**< xyz = direction, w = cos(cutoff) */
STATE_SPOT_CUTOFF, /**< x = cutoff, yzw = undefined */
STATE_TEXGEN_EYE_S,
STATE_TEXGEN_EYE_T,
STATE_TEXGEN_EYE_R,
STATE_TEXGEN_EYE_Q,
STATE_TEXGEN_OBJECT_S,
STATE_TEXGEN_OBJECT_T,
STATE_TEXGEN_OBJECT_R,
STATE_TEXGEN_OBJECT_Q,
STATE_TEXENV_COLOR,
STATE_DEPTH_RANGE,
STATE_VERTEX_PROGRAM,
STATE_FRAGMENT_PROGRAM,
STATE_ENV,
STATE_LOCAL,
STATE_INTERNAL, /* Mesa additions */
STATE_CURRENT_ATTRIB, /* ctx->Current vertex attrib value */
STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED, /* ctx->Current vertex attrib value after passthrough vertex processing */
STATE_NORMAL_SCALE,
STATE_TEXRECT_SCALE,
STATE_FOG_PARAMS_OPTIMIZED, /* for faster fog calc */
STATE_POINT_SIZE_CLAMPED, /* includes implementation dependent size clamp */
STATE_LIGHT_SPOT_DIR_NORMALIZED, /* pre-normalized spot dir */
STATE_LIGHT_POSITION, /* object vs eye space */
STATE_LIGHT_POSITION_NORMALIZED, /* object vs eye space */
STATE_LIGHT_HALF_VECTOR, /* object vs eye space */
STATE_PT_SCALE, /**< Pixel transfer RGBA scale */
STATE_PT_BIAS, /**< Pixel transfer RGBA bias */
STATE_FB_SIZE, /**< (width-1, height-1, 0, 0) */
STATE_FB_WPOS_Y_TRANSFORM, /**< (1, 0, -1, height) if a FBO is bound, (-1, height, 1, 0) otherwise */
STATE_ROT_MATRIX_0, /**< ATI_envmap_bumpmap, rot matrix row 0 */
STATE_ROT_MATRIX_1, /**< ATI_envmap_bumpmap, rot matrix row 1 */
STATE_INTERNAL_DRIVER /* first available state index for drivers (must be last) */
} gl_state_index;
extern void
_mesa_load_state_parameters(struct gl_context *ctx,
struct gl_program_parameter_list *paramList);
extern GLbitfield
_mesa_program_state_flags(const gl_state_index state[STATE_LENGTH]);
extern char *
_mesa_program_state_string(const gl_state_index state[STATE_LENGTH]);
#ifdef __cplusplus
}
#endif
#endif /* PROG_STATEVARS_H */
|
