aboutsummaryrefslogtreecommitdiff
path: root/mesalib/src/mesa/main/uniforms.h
blob: f17503121c8a961fa1f0ba5b19a11fcf5ae1b443 (plain)
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
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
/*
 * Mesa 3-D graphics library
 *
 * Copyright (C) 2010  VMware, 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
 * 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 UNIFORMS_H
#define UNIFORMS_H

#include "glheader.h"
#include "program/prog_parameter.h"
#include "../glsl/glsl_types.h"
#include "../glsl/ir_uniform.h"

#ifdef __cplusplus
extern "C" {
#endif


struct gl_program;
struct _glapi_table;

void GLAPIENTRY
_mesa_Uniform1f(GLint, GLfloat);
void GLAPIENTRY
_mesa_Uniform2f(GLint, GLfloat, GLfloat);
void GLAPIENTRY
_mesa_Uniform3f(GLint, GLfloat, GLfloat, GLfloat);
void GLAPIENTRY
_mesa_Uniform4f(GLint, GLfloat, GLfloat, GLfloat, GLfloat);
void GLAPIENTRY
_mesa_Uniform1i(GLint, GLint);
void GLAPIENTRY
_mesa_Uniform2i(GLint, GLint, GLint);
void GLAPIENTRY
_mesa_Uniform3i(GLint, GLint, GLint, GLint);
void GLAPIENTRY
_mesa_Uniform4i(GLint, GLint, GLint, GLint, GLint);
void GLAPIENTRY
_mesa_Uniform1fv(GLint, GLsizei, const GLfloat *);
void GLAPIENTRY
_mesa_Uniform2fv(GLint, GLsizei, const GLfloat *);
void GLAPIENTRY
_mesa_Uniform3fv(GLint, GLsizei, const GLfloat *);
void GLAPIENTRY
_mesa_Uniform4fv(GLint, GLsizei, const GLfloat *);
void GLAPIENTRY
_mesa_Uniform1iv(GLint, GLsizei, const GLint *);
void GLAPIENTRY
_mesa_Uniform2iv(GLint, GLsizei, const GLint *);
void GLAPIENTRY
_mesa_Uniform3iv(GLint, GLsizei, const GLint *);
void GLAPIENTRY
_mesa_Uniform4iv(GLint, GLsizei, const GLint *);
void GLAPIENTRY
_mesa_Uniform1ui(GLint location, GLuint v0);
void GLAPIENTRY
_mesa_Uniform2ui(GLint location, GLuint v0, GLuint v1);
void GLAPIENTRY
_mesa_Uniform3ui(GLint location, GLuint v0, GLuint v1, GLuint v2);
void GLAPIENTRY
_mesa_Uniform4ui(GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3);
void GLAPIENTRY
_mesa_Uniform1uiv(GLint location, GLsizei count, const GLuint *value);
void GLAPIENTRY
_mesa_Uniform2uiv(GLint location, GLsizei count, const GLuint *value);
void GLAPIENTRY
_mesa_Uniform3uiv(GLint location, GLsizei count, const GLuint *value);
void GLAPIENTRY
_mesa_Uniform4uiv(GLint location, GLsizei count, const GLuint *value);
void GLAPIENTRY
_mesa_UniformMatrix2fv(GLint, GLsizei, GLboolean, const GLfloat *);
void GLAPIENTRY
_mesa_UniformMatrix3fv(GLint, GLsizei, GLboolean, const GLfloat *);
void GLAPIENTRY
_mesa_UniformMatrix4fv(GLint, GLsizei, GLboolean, const GLfloat *);
void GLAPIENTRY
_mesa_UniformMatrix2x3fv(GLint location, GLsizei count, GLboolean transpose,
                         const GLfloat *value);
void GLAPIENTRY
_mesa_UniformMatrix3x2fv(GLint location, GLsizei count, GLboolean transpose,
                         const GLfloat *value);
void GLAPIENTRY
_mesa_UniformMatrix2x4fv(GLint location, GLsizei count, GLboolean transpose,
                         const GLfloat *value);
void GLAPIENTRY
_mesa_UniformMatrix4x2fv(GLint location, GLsizei count, GLboolean transpose,
                         const GLfloat *value);
void GLAPIENTRY
_mesa_UniformMatrix3x4fv(GLint location, GLsizei count, GLboolean transpose,
                         const GLfloat *value);
void GLAPIENTRY
_mesa_UniformMatrix4x3fv(GLint location, GLsizei count, GLboolean transpose,
                         const GLfloat *value);
void GLAPIENTRY
_mesa_GetnUniformfvARB(GLhandleARB, GLint, GLsizei, GLfloat *);
void GLAPIENTRY
_mesa_GetUniformfv(GLhandleARB, GLint, GLfloat *);
void GLAPIENTRY
_mesa_GetnUniformivARB(GLhandleARB, GLint, GLsizei, GLint *);
void GLAPIENTRY
_mesa_GetUniformuiv(GLhandleARB, GLint, GLuint *);
void GLAPIENTRY
_mesa_GetnUniformuivARB(GLhandleARB, GLint, GLsizei, GLuint *);
void GLAPIENTRY
_mesa_GetUniformuiv(GLhandleARB program, GLint location, GLuint *params);
void GLAPIENTRY
_mesa_GetnUniformdvARB(GLhandleARB, GLint, GLsizei, GLdouble *);
void GLAPIENTRY
_mesa_GetUniformdv(GLhandleARB, GLint, GLdouble *);
GLint GLAPIENTRY
_mesa_GetUniformLocation(GLhandleARB, const GLcharARB *);
GLuint GLAPIENTRY
_mesa_GetUniformBlockIndex(GLuint program,
			   const GLchar *uniformBlockName);
void GLAPIENTRY
_mesa_GetUniformIndices(GLuint program,
			GLsizei uniformCount,
			const GLchar * const *uniformNames,
			GLuint *uniformIndices);
void GLAPIENTRY
_mesa_UniformBlockBinding(GLuint program,
			  GLuint uniformBlockIndex,
			  GLuint uniformBlockBinding);
void GLAPIENTRY
_mesa_GetActiveUniformBlockiv(GLuint program,
			      GLuint uniformBlockIndex,
			      GLenum pname,
			      GLint *params);
void GLAPIENTRY
_mesa_GetActiveUniformBlockName(GLuint program,
				GLuint uniformBlockIndex,
				GLsizei bufSize,
				GLsizei *length,
				GLchar *uniformBlockName);
void GLAPIENTRY
_mesa_GetActiveUniformName(GLuint program, GLuint uniformIndex,
			   GLsizei bufSize, GLsizei *length,
			   GLchar *uniformName);
void GLAPIENTRY
_mesa_GetActiveUniform(GLhandleARB, GLuint, GLsizei, GLsizei *,
                          GLint *, GLenum *, GLcharARB *);
void GLAPIENTRY
_mesa_GetActiveUniformsiv(GLuint program,
			  GLsizei uniformCount,
			  const GLuint *uniformIndices,
			  GLenum pname,
			  GLint *params);
void GLAPIENTRY
_mesa_GetUniformiv(GLhandleARB, GLint, GLint *);

unsigned
_mesa_get_uniform_location(struct gl_context *ctx, struct gl_shader_program *shProg,
			   const GLchar *name, unsigned *offset);

void
_mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shader_program,
	      GLint location, GLsizei count,
              const GLvoid *values, GLenum type);

void
_mesa_uniform_matrix(struct gl_context *ctx, struct gl_shader_program *shProg,
		     GLuint cols, GLuint rows,
                     GLint location, GLsizei count,
                     GLboolean transpose, const GLfloat *values);

void
_mesa_get_uniform(struct gl_context *ctx, GLuint program, GLint location,
		  GLsizei bufSize, enum glsl_base_type returnType,
		  GLvoid *paramsOut);

extern void
_mesa_uniform_attach_driver_storage(struct gl_uniform_storage *,
				    unsigned element_stride,
				    unsigned vector_stride,
				    enum gl_uniform_driver_format format,
				    void *data);

extern void
_mesa_uniform_detach_all_driver_storage(struct gl_uniform_storage *uni);

extern void
_mesa_propagate_uniforms_to_driver_storage(struct gl_uniform_storage *uni,
					   unsigned array_index,
					   unsigned count);

extern void
_mesa_update_shader_textures_used(struct gl_shader_program *shProg,
				  struct gl_program *prog);

extern bool
_mesa_sampler_uniforms_are_valid(const struct gl_shader_program *shProg,
				 char *errMsg, size_t errMsgLength);

extern const struct gl_program_parameter *
get_uniform_parameter(struct gl_shader_program *shProg, GLint index);

extern void
_mesa_get_uniform_name(const struct gl_uniform_storage *uni,
                       GLsizei maxLength, GLsizei *length,
                       GLchar *nameOut);

struct gl_builtin_uniform_element {
   const char *field;
   int tokens[STATE_LENGTH];
   int swizzle;
};

struct gl_builtin_uniform_desc {
   const char *name;
   struct gl_builtin_uniform_element *elements;
   unsigned int num_elements;
};

/**
 * \name GLSL uniform arrays and structs require special handling.
 *
 * The GL_ARB_shader_objects spec says that if you use
 * glGetUniformLocation to get the location of an array, you CANNOT
 * access other elements of the array by adding an offset to the
 * returned location.  For example, you must call
 * glGetUniformLocation("foo[16]") if you want to set the 16th element
 * of the array with glUniform().
 *
 * HOWEVER, some other OpenGL drivers allow accessing array elements
 * by adding an offset to the returned array location.  And some apps
 * seem to depend on that behaviour.
 *
 * Mesa's gl_uniform_list doesn't directly support this since each
 * entry in the list describes one uniform variable, not one uniform
 * element.  We could insert dummy entries in the list for each array
 * element after [0] but that causes complications elsewhere.
 *
 * We solve this problem by encoding two values in the location that's
 * returned by glGetUniformLocation():
 *  a) index into gl_uniform_list::Uniforms[] for the uniform
 *  b) an array/field offset (0 for simple types)
 *
 * These two values are encoded in the high and low halves of a GLint.
 * By putting the uniform number in the high part and the offset in the
 * low part, we can support the unofficial ability to index into arrays
 * by adding offsets to the location value.
 */
/*@{*/
/**
 * Combine the uniform's base location and the offset
 */
static inline GLint
_mesa_uniform_merge_location_offset(unsigned base_location, unsigned offset)
{
   return (base_location << 16) | offset;
}

/**
 * Separate the uniform base location and parameter offset
 */
static inline void
_mesa_uniform_split_location_offset(GLint location, unsigned *base_location,
				    unsigned *offset)
{
   *offset = location & 0xffff;
   *base_location = location >> 16;
}
/*@}*/


#ifdef __cplusplus
}
#endif


#endif /* UNIFORMS_H */