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
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
/*
* Mesa 3-D graphics library
* Version: 5.1
*
* Copyright (C) 1999-2003 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
* BRIAN PAUL 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.
*/
/**
* \file program.c
* Vertex and fragment program support functions.
* \author Brian Paul
*/
#ifndef PROGRAM_H
#define PROGRAM_H
#include "mtypes.h"
/* for GL_ARB_v_p and GL_ARB_f_p SWZ instruction */
#define SWIZZLE_ZERO 100
#define SWIZZLE_ONE 101
/*
* Internal functions
*/
extern void
_mesa_init_program(GLcontext *ctx);
extern void
_mesa_set_program_error(GLcontext *ctx, GLint pos, const char *string);
extern const GLubyte *
_mesa_find_line_column(const GLubyte *string, const GLubyte *pos,
GLint *line, GLint *col);
extern struct program *
_mesa_alloc_program(GLcontext *ctx, GLenum target, GLuint id);
extern void
_mesa_delete_program(GLcontext *ctx, struct program *prog);
/*
* 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 ].
*/
enum state_index {
STATE_MATERIAL,
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_MATRIX,
STATE_MODELVIEW,
STATE_PROJECTION,
STATE_MVP,
STATE_TEXTURE,
STATE_PROGRAM,
STATE_MATRIX_INVERSE,
STATE_MATRIX_TRANSPOSE,
STATE_MATRIX_INVTRANS,
STATE_AMBIENT,
STATE_DIFFUSE,
STATE_SPECULAR,
STATE_EMISSION,
STATE_SHININESS,
STATE_POSITION,
STATE_ATTENUATION,
STATE_SPOT_DIRECTION,
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
};
/*
* Named program parameters
* Used for NV_fragment_program "DEFINE"d constants and "DECLARE"d parameters,
* and ARB_fragment_program global state references. For the later, Name
* might be "state.light[0].diffuse", for example.
*/
enum parameter_type
{
NAMED_PARAMETER,
CONSTANT,
STATE
};
struct program_parameter
{
const char *Name; /* Null-terminated */
enum parameter_type Type;
enum state_index StateIndexes[5]; /* Global state reference */
GLfloat Values[4];
};
struct program_parameter_list
{
GLuint NumParameters;
struct program_parameter *Parameters;
};
/*
* Program parameter functions
*/
extern struct program_parameter_list *
_mesa_new_parameter_list(void);
extern void
_mesa_free_parameter_list(struct program_parameter_list *paramList);
extern void
_mesa_free_parameters(struct program_parameter_list *paramList);
extern GLint
_mesa_add_named_parameter(struct program_parameter_list *paramList,
const char *name, const GLfloat values[4]);
extern GLint
_mesa_add_named_constant(struct program_parameter_list *paramList,
const char *name, const GLfloat values[4]);
extern GLint
_mesa_add_unnamed_constant(struct program_parameter_list *paramList,
const GLfloat values[4]);
extern GLint
_mesa_add_state_reference(struct program_parameter_list *paramList,
const char *stateString);
extern GLfloat *
_mesa_lookup_parameter_value(struct program_parameter_list *paramList,
GLsizei nameLen, const char *name);
extern GLint
_mesa_lookup_parameter_index(struct program_parameter_list *paramList,
GLsizei nameLen, const char *name);
extern void
_mesa_load_state_parameters(GLcontext *ctx,
struct program_parameter_list *paramList);
/*
* API functions
*/
extern void
_mesa_BindProgram(GLenum target, GLuint id);
extern void
_mesa_DeletePrograms(GLsizei n, const GLuint *ids);
extern void
_mesa_GenPrograms(GLsizei n, GLuint *ids);
extern GLboolean
_mesa_IsProgram(GLuint id);
/*
* GL_MESA_program_debug
*/
extern void
_mesa_ProgramCallbackMESA(GLenum target, GLprogramcallbackMESA callback,
GLvoid *data);
extern void
_mesa_GetProgramRegisterfvMESA(GLenum target, GLsizei len,
const GLubyte *registerName, GLfloat *v);
#endif /* PROGRAM_H */
|
