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 #include "main/imports.h"
32 #include "main/mtypes.h"
33 #include "prog_uniform.h"
36 struct gl_uniform_list *
37 _mesa_new_uniform_list(void)
39 return CALLOC_STRUCT(gl_uniform_list);
44 _mesa_free_uniform_list(struct gl_uniform_list *list)
51 for (i = 0; i < list->NumUniforms; i++) {
52 free((void *) list->Uniforms[i].Name);
60 _mesa_append_uniform(struct gl_uniform_list *list,
61 const char *name, GLenum target, GLuint progPos)
63 const GLuint oldNum = list->NumUniforms;
64 struct gl_uniform *uniform;
67 assert(target == GL_VERTEX_PROGRAM_ARB ||
68 target == GL_FRAGMENT_PROGRAM_ARB ||
69 target == MESA_GEOMETRY_PROGRAM);
71 index = _mesa_lookup_uniform(list, name);
73 /* not found - append to list */
75 if (oldNum + 1 > list->Size) {
76 /* Need to grow the list array (alloc some extra) */
80 list->Uniforms = (struct gl_uniform *)
81 _mesa_realloc(list->Uniforms,
82 oldNum * sizeof(struct gl_uniform),
83 list->Size * sizeof(struct gl_uniform));
86 if (!list->Uniforms) {
88 list->NumUniforms = 0;
93 uniform = list->Uniforms + oldNum;
95 uniform->Name = _mesa_strdup(name);
96 uniform->VertPos = -1;
97 uniform->FragPos = -1;
98 uniform->GeomPos = -1;
99 uniform->Initialized = GL_FALSE;
105 uniform = list->Uniforms + index;
108 /* update position for the vertex or fragment program */
109 if (target == GL_VERTEX_PROGRAM_ARB) {
110 if (uniform->VertPos != -1) {
111 /* this uniform is already in the list - that shouldn't happen */
114 uniform->VertPos = progPos;
115 } else if (target == GL_FRAGMENT_PROGRAM_ARB) {
116 if (uniform->FragPos != -1) {
117 /* this uniform is already in the list - that shouldn't happen */
120 uniform->FragPos = progPos;
122 if (uniform->GeomPos != -1) {
123 /* this uniform is already in the list - that shouldn't happen */
126 uniform->GeomPos = progPos;
134 * Return the location/index of the named uniform in the uniform list,
135 * or -1 if not found.
138 _mesa_lookup_uniform(const struct gl_uniform_list *list, const char *name)
141 for (i = 0; list && i < list->NumUniforms; i++) {
142 if (!strcmp(list->Uniforms[i].Name, name)) {
151 _mesa_longest_uniform_name(const struct gl_uniform_list *list)
155 for (i = 0; list && i < list->NumUniforms; i++) {
156 GLint len = (GLint) strlen(list->Uniforms[i].Name);
165 _mesa_print_uniforms(const struct gl_uniform_list *list)
168 printf("Uniform list %p:\n", (void *) list);
169 for (i = 0; i < list->NumUniforms; i++) {
170 printf("%d: %s %d %d %d\n",
172 list->Uniforms[i].Name,
173 list->Uniforms[i].VertPos,
174 list->Uniforms[i].FragPos,
175 list->Uniforms[i].GeomPos);