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/*
** Copyright 2017 Intel Corporation
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#include "display_window_util.h"
#include "global_wayland.h"
#include <iostream>
#include <dlfcn.h>
#include <dirent.h>
#include <string.h>
#include <list>
#include <stdlib.h>
#include <errno.h>
/* IAS Wayland library for IPC calls from hdcpd to IAS compositor *
* need to set LD_LIBRARY_PATH if library is not in standard path *
* for example it might be located at /usr/lib64/ias */
#define IAS_WL_LIBNAME "libwl_base.so"
using namespace std;
typedef struct _class_info_t {
char *name;
int level;
} class_info;
typedef enum _wl_stage_t {
WL_INIT,
CREATE_DISPLAY_DONE,
} wl_stage;
wl_stage stage = WL_INIT;
static global_wl *gwl;
static void *lib_hdl;
typedef void* (*init_fn)();
typedef void (*deinit_fn)(void *);
EGLNativeDisplayType util_create_display(int screen)
{
EGLNativeDisplayType ret = 0;
void *init;
lib_hdl = dlopen(IAS_WL_LIBNAME, RTLD_LAZY | RTLD_GLOBAL);
if(!lib_hdl) {
cerr<<"Couldn't open lib "<<IAS_WL_LIBNAME<<endl;
return 0;
}
/* Find init symbol */
init = dlsym(lib_hdl, "init");
if(!init) {
cerr<<"Couldn't open symbol init dlerror "<<dlerror()<<endl;
dlclose(lib_hdl);
return 0;
}
/* Get a new class pointer by calling this init function */
gwl = (global_wl *) ((init_fn) init)();
if(!gwl) {
cerr<<"Couldn't get a new class pointer"<<endl;
dlclose(lib_hdl);
return 0;
}
/* Call class's function */
ret = gwl->init();
if(ret == 0) {
cerr<<"WL base Class init is failed "<< errno << endl;
dlclose(lib_hdl);
return 0;
}
gwl->add_reg();
gwl->dispatch_pending();
stage = CREATE_DISPLAY_DONE;
return ret;
}
void util_destroy_display(EGLNativeDisplayType display)
{
void *deinit;
/* First call the class's deinit function */
if(gwl) {
gwl->deinit();
}
/* Find deinit symbol */
deinit = dlsym(lib_hdl, "deinit");
if(!deinit) {
cerr<<"Couldn't open symbol deinit dlerror "<<dlerror()<<endl;
} else {
/* Call deinit symbol to delete the class pointer */
((deinit_fn) deinit)(gwl);
}
/* Close the handle to the lib */
dlclose(lib_hdl);
}
bool util_set_content_protection(int crtc, int cp)
{
bool retval = false;
if(stage != CREATE_DISPLAY_DONE) {
cerr<<"Must call util_create_display first"<<endl;
return retval;
}
if(!gwl) {
cerr<<"Global Wayland class not registered"<<endl;
return retval;
}
retval = gwl->set_content_protection(crtc, cp);
if (retval != true)
{
cerr<<"Failed to set content protection and ret value =%0x"<<retval<<endl;
return retval;
}
return true;
}
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