Brian Paul | c807c1a | 2008-05-14 13:12:44 -0600 | [diff] [blame] | 1 | /* |
| 2 | * Mesa 3-D graphics library |
| 3 | * Version: 7.1 |
| 4 | * |
| 5 | * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. |
| 6 | * |
| 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: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice shall be included |
| 15 | * in all copies or substantial portions of the Software. |
| 16 | * |
| 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. |
| 23 | */ |
| 24 | |
| 25 | /** |
| 26 | * \file prog_uniform.c |
| 27 | * Shader uniform functions. |
| 28 | * \author Brian Paul |
| 29 | */ |
| 30 | |
| 31 | #ifndef PROG_UNIFORM_H |
| 32 | #define PROG_UNIFORM_H |
| 33 | |
| 34 | #include "main/mtypes.h" |
| 35 | #include "prog_statevars.h" |
| 36 | |
| 37 | |
| 38 | /** |
| 39 | * Shader program uniform variable. |
| 40 | * The glGetUniformLocation() and glUniform() commands will use this |
| 41 | * information. |
| 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. |
| 47 | */ |
| 48 | struct gl_uniform |
| 49 | { |
| 50 | const char *Name; /**< Null-terminated string */ |
| 51 | GLint VertPos; |
| 52 | GLint FragPos; |
Zack Rusin | da7bd6a | 2010-06-28 17:31:21 -0400 | [diff] [blame^] | 53 | GLint GeomPos; |
Brian Paul | 949e738 | 2008-11-05 09:17:55 -0700 | [diff] [blame] | 54 | GLboolean Initialized; /**< For debug. Has this uniform been set? */ |
Brian Paul | c807c1a | 2008-05-14 13:12:44 -0600 | [diff] [blame] | 55 | #if 0 |
| 56 | GLenum DataType; /**< GL_FLOAT, GL_FLOAT_VEC2, etc */ |
| 57 | GLuint Size; /**< Number of components (1..4) */ |
| 58 | #endif |
| 59 | }; |
| 60 | |
| 61 | |
| 62 | /** |
| 63 | * List of gl_uniforms |
| 64 | */ |
| 65 | struct gl_uniform_list |
| 66 | { |
| 67 | GLuint Size; /**< allocated size of Uniforms array */ |
| 68 | GLuint NumUniforms; /**< number of uniforms in the array */ |
| 69 | struct gl_uniform *Uniforms; /**< Array [Size] */ |
| 70 | }; |
| 71 | |
| 72 | |
| 73 | extern struct gl_uniform_list * |
| 74 | _mesa_new_uniform_list(void); |
| 75 | |
| 76 | extern void |
| 77 | _mesa_free_uniform_list(struct gl_uniform_list *list); |
| 78 | |
Brian Paul | 2d76a0d | 2008-11-10 12:33:17 -0700 | [diff] [blame] | 79 | extern struct gl_uniform * |
Brian Paul | c807c1a | 2008-05-14 13:12:44 -0600 | [diff] [blame] | 80 | _mesa_append_uniform(struct gl_uniform_list *list, |
| 81 | const char *name, GLenum target, GLuint progPos); |
| 82 | |
| 83 | extern GLint |
| 84 | _mesa_lookup_uniform(const struct gl_uniform_list *list, const char *name); |
| 85 | |
| 86 | extern GLint |
| 87 | _mesa_longest_uniform_name(const struct gl_uniform_list *list); |
| 88 | |
| 89 | extern void |
| 90 | _mesa_print_uniforms(const struct gl_uniform_list *list); |
| 91 | |
| 92 | |
| 93 | #endif /* PROG_UNIFORM_H */ |