qmaa/service.cpp

/*
 * Copyright (c) 2019, The Linux Foundation. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
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 *      notice, this list of conditions and the following disclaimer.
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 *      disclaimer in the documentation and/or other materials provided
 *      with the distribution.
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 *      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
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 */
#include <hidl/LegacySupport.h>
#include "QtiQmaaComposer.h"
#include <binder/ProcessState.h>  //May need to hwbinder instead

using android::ProcessState;
using android::sp;
using android::hardware::configureRpcThreadpool;
using android::hardware::joinRpcThreadpool;
using android::hardware::graphics::composer::V2_3::IComposer;
// using vendor::qti::hardware::display::composer::V3_0::IQtiComposer;
using vendor::qti::hardware::display::composer::V3_0::implementation::QtiComposer;

int main(int, char **) {
  ALOGI("Creating Display HW QMAA Composer HAL");

  // TODO(user): double-check for SCHED_FIFO logic
  // the conventional HAL might start binder services
  // ProcessState::initWithDriver("/dev/vndbinder");
  sp<ProcessState> ps(ProcessState::self());
  ps->setThreadPoolMaxThreadCount(4);
  ps->startThreadPool();
  ALOGI("ProcessState initialization completed");

  // same as SF main thread
  struct sched_param param = {0};
  param.sched_priority = 2;
  if (sched_setscheduler(0, SCHED_FIFO | SCHED_RESET_ON_FORK, &param) != 0) {
    ALOGE("Couldn't set SCHED_FIFO: %d", errno);
  } else {
    ALOGI("Scheduler priority settings completed");
  }

  ALOGI("Initializing QtiComposer");
  sp<IComposer> composer = QtiComposer::initialize();
  if (composer == nullptr) {
    ALOGE("Initializing QtiComposer...failed!");
    return -EINVAL;
  } else {
    ALOGI("Initializing QtiComposer...done!");
  }

  ALOGI("Configuring RPC threadpool");
  configureRpcThreadpool(4, true /*callerWillJoin*/);
  ALOGI("Configuring RPC threadpool...done!");

  ALOGI("Registering Display HW Composer HAL as a service");
  if (composer->registerAsService() != android::OK) {
    ALOGE("Registering Display HW Composer HAL as a service...failed!");
    return -EINVAL;
  }
  ALOGI("Registering Display HW Composer HAL as a service...done!");

  ALOGI("Joining RPC threadpool...");
  joinRpcThreadpool();

  return 0;
}