22a2bfd9701173cf99a5a10bed0c3fa146f052d3
2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 * \file prog_uniform.c
27 * Shader uniform functions.
31 #ifndef PROG_UNIFORM_H
32 #define PROG_UNIFORM_H
34 #include "main/mtypes.h"
35 #include "prog_statevars.h"
39 * Shader program uniform variable.
40 * The glGetUniformLocation() and glUniform() commands will use this
42 * Note that a uniform such as "binormal" might be used in both the
43 * vertex shader and the fragment shader. When glUniform() is called to
44 * set the uniform's value, it must be updated in both the vertex and
45 * fragment shaders. The uniform may be in different locations in the
46 * two shaders so we keep track of that here.
50 const char *Name
; /**< Null-terminated string */
53 GLboolean Initialized
; /**< For debug. Has this uniform been set? */
55 GLenum DataType
; /**< GL_FLOAT, GL_FLOAT_VEC2, etc */
56 GLuint Size
; /**< Number of components (1..4) */
64 struct gl_uniform_list
66 GLuint Size
; /**< allocated size of Uniforms array */
67 GLuint NumUniforms
; /**< number of uniforms in the array */
68 struct gl_uniform
*Uniforms
; /**< Array [Size] */
72 extern struct gl_uniform_list
*
73 _mesa_new_uniform_list(void);
76 _mesa_free_uniform_list(struct gl_uniform_list
*list
);
78 extern struct gl_uniform
*
79 _mesa_append_uniform(struct gl_uniform_list
*list
,
80 const char *name
, GLenum target
, GLuint progPos
);
83 _mesa_lookup_uniform(const struct gl_uniform_list
*list
, const char *name
);
86 _mesa_longest_uniform_name(const struct gl_uniform_list
*list
);
89 _mesa_print_uniforms(const struct gl_uniform_list
*list
);
92 #endif /* PROG_UNIFORM_H */