2 * Mesa 3-D graphics library
5 * Copyright (C) 2011 LunarG Inc.
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 OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
26 * Chia-I Wu <olv@lunarg.com>
28 #include "util/u_debug.h"
29 #include "state_tracker/st_api.h"
32 #if FEATURE_GL || FEATURE_ES1 || FEATURE_ES2
33 #include "state_tracker/st_gl_api.h"
42 #include "util/u_string.h"
43 #include "util/u_dl.h"
44 #include "egldriver.h"
47 static struct util_dl_library *egl_st_gl_lib;
50 dlopen_gl_lib_cb(const char *dir, size_t len, void *callback_data)
52 const char *name = (const char *) callback_data;
57 ret = util_snprintf(path, sizeof(path), "%.*s/%s" UTIL_DL_EXT,
61 ret = util_snprintf(path, sizeof(path), "%s" UTIL_DL_EXT, name);
64 if (ret > 0 && ret < sizeof(path)) {
65 egl_st_gl_lib = util_dl_open(path);
67 _eglLog(_EGL_DEBUG, "loaded %s", path);
70 return !egl_st_gl_lib;
73 static struct st_api *
74 load_gl(const char *name, const char *procname)
76 struct st_api *(*create_api)(void);
77 struct st_api *stapi = NULL;
79 _eglSearchPathForEach(dlopen_gl_lib_cb, (void *) name);
83 create_api = (struct st_api *(*)(void))
84 util_dl_get_proc_address(egl_st_gl_lib, procname);
89 util_dl_close(egl_st_gl_lib);
96 static struct st_api *
99 const char module[] = "st_GL";
100 const char symbol[] = "st_api_create_OpenGL";
101 struct st_api *stapi;
103 stapi = load_gl(module, symbol);
105 /* try again with libglapi.so loaded */
107 struct util_dl_library *glapi = util_dl_open("libglapi" UTIL_DL_EXT);
110 _eglLog(_EGL_DEBUG, "retry with libglapi" UTIL_DL_EXT " loaded");
112 stapi = load_gl(module, symbol);
113 util_dl_close(glapi);
117 _eglLog(_EGL_WARNING, "unable to load %s" UTIL_DL_EXT, module);
122 #endif /* _EGL_EXTERNAL_GL */
125 egl_st_create_api(enum st_api_type api)
127 struct st_api *stapi = NULL;
131 #if FEATURE_GL || FEATURE_ES1 || FEATURE_ES2
133 stapi = egl_st_load_gl();
135 stapi = st_gl_api_create();
141 stapi = (struct st_api *) vg_api_get();
145 assert(!"Unknown API Type\n");
153 egl_st_destroy_api(struct st_api *stapi)
156 boolean is_gl = (stapi->api == ST_API_OPENGL);
158 stapi->destroy(stapi);
161 util_dl_close(egl_st_gl_lib);
162 egl_st_gl_lib = NULL;
165 stapi->destroy(stapi);
170 egl_st_get_profile_mask(enum st_api_type api)
177 mask |= ST_PROFILE_DEFAULT_MASK;
180 mask |= ST_PROFILE_OPENGL_ES1_MASK;
183 mask |= ST_PROFILE_OPENGL_ES2_MASK;
188 mask |= ST_PROFILE_DEFAULT_MASK;