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/* Copyright (c) 2015-2018, 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 __QCAMERADISPLAY_H__
#define __QCAMERADISPLAY_H__
#ifdef USE_DISPLAY_SERVICE
#ifdef LIKELY
#undef LIKELY
#undef UNLIKELY
#endif //LIKELY
#include <android/frameworks/displayservice/1.0/IDisplayService.h>
#include <android/frameworks/displayservice/1.0/IEventCallback.h>
#include <android/frameworks/displayservice/1.0/IDisplayEventReceiver.h>
#include <android/looper.h>
#include <utils/Looper.h>
using ::android::frameworks::displayservice::V1_0::IDisplayEventReceiver;
using ::android::frameworks::displayservice::V1_0::IDisplayService;
using ::android::frameworks::displayservice::V1_0::IEventCallback;
using ::android::frameworks::displayservice::V1_0::Status;
using ::android::hardware::Return;
using ::android::hardware::Void;
using ::android::sp;
#else //USE_DISPLAY_SERVICE
#include <utils/Timers.h>
#include <gui/DisplayEventReceiver.h>
#endif //USE_DISPLAY_SERVICE
namespace qcamera {
#define CAMERA_NUM_VSYNC_INTERVAL_HISTORY 6
#ifdef USE_DISPLAY_SERVICE
class QCameraDisplay : public IEventCallback {
#else //USE_DISPLAY_SERVICE
class QCameraDisplay {
#endif //USE_DISPLAY_SERVICE
public:
QCameraDisplay();
~QCameraDisplay();
#ifdef USE_DISPLAY_SERVICE
void init();
bool isInited() { return m_bInitDone; }
bool isSyncing() {return m_bSyncing; }
bool startVsync(bool start);
Return<void> onVsync(uint64_t timestamp, uint32_t count) override {
ALOGV("onVsync: timestamp=%llu count=%d", timestamp, count);
computeAverageVsyncInterval(timestamp);
return Void();
}
Return<void> onHotplug(uint64_t timestamp, bool connected) override {
ALOGV("onHotplug: timestamp=%llu connected=%s", timestamp, connected ? "true" : "false");
return Void();
}
#else //USE_DISPLAY_SERVICE
static int vsyncEventReceiverCamera(int fd, int events, void* data);
static void* vsyncThreadCamera(void * data);
#endif //USE_DISPLAY_SERVICE
void computeAverageVsyncInterval(nsecs_t currentVsyncTimeStamp);
nsecs_t computePresentationTimeStamp(nsecs_t frameTimeStamp);
private:
nsecs_t mVsyncTimeStamp;
nsecs_t mAvgVsyncInterval;
nsecs_t mOldTimeStamp;
nsecs_t mVsyncIntervalHistory[CAMERA_NUM_VSYNC_INTERVAL_HISTORY];
nsecs_t mVsyncHistoryIndex;
nsecs_t mAdditionalVsyncOffsetForWiggle;
// Tunable property. Increasing this will increase the frame delay and will loose
// the real time display.
uint32_t mNum_vsync_from_vfe_isr_to_presentation_timestamp;
// Tunable property. Set the time stamp x ms prior to expected vsync so that
// it will be picked in that vsync
uint32_t mSet_timestamp_num_ms_prior_to_vsync;
// Tunable property for filtering timestamp wiggle when VFE ISR crosses
// over MDP ISR over a period. Typical scenario is VFE is running at
// 30.2 fps vs display running at 60 fps.
uint32_t mVfe_and_mdp_freq_wiggle_filter_max_ms;
uint32_t mVfe_and_mdp_freq_wiggle_filter_min_ms;
#ifdef USE_DISPLAY_SERVICE
bool m_bInitDone;
bool m_bSyncing;
sp<IDisplayEventReceiver> mDisplayEventReceiver;
sp<IDisplayService> mDisplayService;
#else //USE_DISPLAY_SERVICE
pthread_t mVsyncThreadCameraHandle;
uint32_t mThreadExit;
android::DisplayEventReceiver mDisplayEventReceiver;
#endif //USE_DISPLAY_SERVICE
};
}; // namespace qcamera
#endif /* __QCAMERADISPLAY_H__ */
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