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/*
* Mesa 3-D graphics library
* Version: 7.10
*
* Copyright (C) 2011 LunarG Inc.
*
* 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 OR COPYRIGHT HOLDERS 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.
*
* Authors:
* Chia-I Wu <olv@lunarg.com>
*/
#include "util/u_debug.h"
#include "state_tracker/st_api.h"
#include "egl_st.h"
#if FEATURE_GL || FEATURE_ES1 || FEATURE_ES2
#include "state_tracker/st_gl_api.h"
#endif
#if FEATURE_VG
#include "vg_api.h"
#endif
#if _EGL_EXTERNAL_GL
#include "util/u_string.h"
#include "util/u_dl.h"
#include "egldriver.h"
#include "egllog.h"
static struct util_dl_library *egl_st_gl_lib;
static EGLBoolean
dlopen_gl_lib_cb(const char *dir, size_t len, void *callback_data)
{
const char *name = (const char *) callback_data;
char path[1024];
int ret;
if (len) {
ret = util_snprintf(path, sizeof(path), "%.*s/%s" UTIL_DL_EXT,
len, dir, name);
}
else {
ret = util_snprintf(path, sizeof(path), "%s" UTIL_DL_EXT, name);
}
if (ret > 0 && ret < sizeof(path)) {
egl_st_gl_lib = util_dl_open(path);
if (egl_st_gl_lib)
_eglLog(_EGL_DEBUG, "loaded %s", path);
}
return !egl_st_gl_lib;
}
static struct st_api *
load_gl(const char *name, const char *procname)
{
struct st_api *(*create_api)(void);
struct st_api *stapi = NULL;
_eglSearchPathForEach(dlopen_gl_lib_cb, (void *) name);
if (!egl_st_gl_lib)
return NULL;
create_api = (struct st_api *(*)(void))
util_dl_get_proc_address(egl_st_gl_lib, procname);
if (create_api)
stapi = create_api();
if (!stapi) {
util_dl_close(egl_st_gl_lib);
egl_st_gl_lib = NULL;
}
return stapi;
}
static struct st_api *
egl_st_load_gl(void)
{
const char module[] = "st_GL";
const char symbol[] = "st_api_create_OpenGL";
struct st_api *stapi;
stapi = load_gl(module, symbol);
/* try again with libglapi.so loaded */
if (!stapi) {
struct util_dl_library *glapi = util_dl_open("libglapi" UTIL_DL_EXT);
if (glapi) {
_eglLog(_EGL_DEBUG, "retry with libglapi" UTIL_DL_EXT " loaded");
stapi = load_gl(module, symbol);
util_dl_close(glapi);
}
}
if (!stapi)
_eglLog(_EGL_WARNING, "unable to load %s" UTIL_DL_EXT, module);
return stapi;
}
#endif /* _EGL_EXTERNAL_GL */
struct st_api *
egl_st_create_api(enum st_api_type api)
{
struct st_api *stapi = NULL;
switch (api) {
case ST_API_OPENGL:
#if FEATURE_GL || FEATURE_ES1 || FEATURE_ES2
#if _EGL_EXTERNAL_GL
stapi = egl_st_load_gl();
#else
stapi = st_gl_api_create();
#endif
#endif
break;
case ST_API_OPENVG:
#if FEATURE_VG
stapi = (struct st_api *) vg_api_get();
#endif
break;
default:
assert(!"Unknown API Type\n");
break;
}
return stapi;
}
void
egl_st_destroy_api(struct st_api *stapi)
{
#if _EGL_EXTERNAL_GL
boolean is_gl = (stapi->api == ST_API_OPENGL);
stapi->destroy(stapi);
if (is_gl) {
util_dl_close(egl_st_gl_lib);
egl_st_gl_lib = NULL;
}
#else
stapi->destroy(stapi);
#endif
}
uint
egl_st_get_profile_mask(enum st_api_type api)
{
uint mask = 0x0;
switch (api) {
case ST_API_OPENGL:
#if FEATURE_GL
mask |= ST_PROFILE_DEFAULT_MASK;
#endif
#if FEATURE_ES1
mask |= ST_PROFILE_OPENGL_ES1_MASK;
#endif
#if FEATURE_ES2
mask |= ST_PROFILE_OPENGL_ES2_MASK;
#endif
break;
case ST_API_OPENVG:
#if FEATURE_VG
mask |= ST_PROFILE_DEFAULT_MASK;
#endif
break;
default:
break;
}
return mask;
}
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