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/*
* Copyright (c) 2019-2021, 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 __COMPOSER_EXTN_INTF_H__
#define __COMPOSER_EXTN_INTF_H__
#include <dlfcn.h>
#include "frame_scheduler_intf.h"
#include "display_extn_intf.h"
#include "phase_offset_extn_intf.h"
#include "smomo_interface.h"
#define COMPOSER_EXTN_REV_MAJOR (1)
#define COMPOSER_EXTN_REV_MINOR (0)
#define COMPOSER_EXTN_VERSION_TAG ((uint16_t) ((COMPOSER_EXTN_REV_MAJOR << 8) \
| COMPOSER_EXTN_REV_MINOR))
namespace composer {
class ComposerExtnIntf {
public:
virtual int CreateFrameScheduler(FrameSchedulerIntf **intf) = 0;
virtual void DestroyFrameScheduler(FrameSchedulerIntf *intf) = 0;
virtual int CreateDisplayExtn(DisplayExtnIntf **intf) = 0;
virtual void DestroyDisplayExtn(DisplayExtnIntf *intf) = 0;
virtual int CreatePhaseOffsetExtn(PhaseOffsetExtnIntf **intf) = 0;
virtual void DestroyPhaseOffsetExtn(PhaseOffsetExtnIntf *intf) = 0;
virtual bool CreateSmomoExtn(smomo::SmomoIntf **intf) = 0;
virtual void DestroySmomoExtn(smomo::SmomoIntf *intf) = 0;
protected:
virtual ~ComposerExtnIntf() { }
};
class ComposerExtnLib {
public:
static ComposerExtnIntf * GetInstance() {
return g_composer_ext_lib_.composer_ext_intf_;
}
private:
const char *lib_name = "libcomposerextn.qti.so";
typedef int (*CreateComposerExtn)(uint16_t version, ComposerExtnIntf **intf);
typedef void (*DestroyComposerExtn)(ComposerExtnIntf *intf);
ComposerExtnLib() {
lib_obj_ = ::dlopen(lib_name, RTLD_NOW);
if (!lib_obj_) {
return;
}
create_composer_ext_fn_ = reinterpret_cast<CreateComposerExtn>(
::dlsym(lib_obj_, "CreateComposerExtn"));
destroy_composer_ext_fn_ = reinterpret_cast<DestroyComposerExtn>(
::dlsym(lib_obj_, "DestroyComposerExtn"));
if (create_composer_ext_fn_ && destroy_composer_ext_fn_) {
create_composer_ext_fn_(COMPOSER_EXTN_VERSION_TAG, &composer_ext_intf_);
}
}
~ComposerExtnLib() {
if (composer_ext_intf_) {
destroy_composer_ext_fn_(composer_ext_intf_);
}
if (lib_obj_) {
::dlclose(lib_obj_);
}
}
static ComposerExtnLib g_composer_ext_lib_;
void *lib_obj_ = nullptr;
CreateComposerExtn create_composer_ext_fn_ = nullptr;
DestroyComposerExtn destroy_composer_ext_fn_ = nullptr;
ComposerExtnIntf *composer_ext_intf_ = nullptr;
};
} // namespace composer
#endif // __COMPOSER_EXTN_INTF_H__
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