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/*
* Copyright (c) 2017, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __DRM_LIB_LOADER_H__
#define __DRM_LIB_LOADER_H__
#include <drm_interface.h>
#include <mutex>
namespace drm_utils {
class DRMLibLoader {
public:
~DRMLibLoader();
bool IsLoaded() { return is_loaded_; }
sde_drm::GetDRMManager FuncGetDRMManager() { return func_get_drm_manager_; }
sde_drm::DestroyDRMManager FuncDestroyDRMManager() { return func_destroy_drm_manager_; }
static DRMLibLoader *GetInstance();
static void Destroy();
private:
DRMLibLoader();
bool Open(const char *lib_name);
bool Sym(const char *func_name, void **func_ptr);
void *lib_ = {};
sde_drm::GetDRMManager func_get_drm_manager_ = {};
sde_drm::DestroyDRMManager func_destroy_drm_manager_ = {};
bool is_loaded_ = false;
static DRMLibLoader *s_instance; // Singleton instance
static std::mutex s_lock;
};
} // namespace drm_utils
#endif // __DRM_LIB_LOADER_H__
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