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/*
* Copyright (C) 2022 The Android Open Source Project
*
* 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 "histogram_mediator.h"
histogram::HistogramMediator::HistogramMediator(ExynosDisplay *display) {
mDisplay = display;
ExynosDisplayDrmInterface *moduleDisplayInterface =
static_cast<ExynosDisplayDrmInterface *>(display->mDisplayInterface.get());
moduleDisplayInterface->registerHistogramInfo(static_cast<IDLHistogram *>(&mIDLHistogram));
moduleDisplayInterface->getPanelResolution();
}
uint32_t histogram::HistogramMediator::getFrameCount() {
ExynosDisplayDrmInterface *moduleDisplayInterface =
static_cast<ExynosDisplayDrmInterface *>(mDisplay->mDisplayInterface.get());
return moduleDisplayInterface->getFrameCount();
}
bool histogram::HistogramMediator::isDisplayPowerOff() {
if (!mDisplay->mPowerModeState.has_value() ||
((mDisplay->mPowerModeState.value() == HWC2_POWER_MODE_OFF) ||
(mDisplay->mPowerModeState.value() == HWC2_POWER_MODE_DOZE))) {
return true;
}
return false;
}
bool histogram::HistogramMediator::isSecureContentPresenting() {
Mutex::Autolock lock(mDisplay->mDRMutex);
for (uint32_t i = 0; i < mDisplay->mLayers.size(); i++) {
ExynosLayer *layer = mDisplay->mLayers[i];
if (layer != NULL && layer->isDrm()) { /* there is some DRM layer */
return true;
}
}
return false;
}
histogram::HistogramErrorCode histogram::HistogramMediator::requestHist() {
if (isSecureContentPresenting()) { /* there is some DRM layer */
return histogram::HistogramErrorCode::DRM_PLAYING;
}
ExynosDisplayDrmInterface *moduleDisplayInterface =
static_cast<ExynosDisplayDrmInterface *>(mDisplay->mDisplayInterface.get());
if (moduleDisplayInterface->setHistogramControl(
hidl_histogram_control_t::HISTOGRAM_CONTROL_REQUEST) != NO_ERROR) {
return histogram::HistogramErrorCode::ENABLE_HIST_ERROR;
}
{
std::unique_lock<std::mutex> lk(mIDLHistogram.mDataCollectingMutex);
mIDLHistogram.mHistReq_pending = true;
}
return histogram::HistogramErrorCode::NONE;
}
histogram::HistogramErrorCode histogram::HistogramMediator::cancelHistRequest() {
ExynosDisplayDrmInterface *moduleDisplayInterface =
static_cast<ExynosDisplayDrmInterface *>(mDisplay->mDisplayInterface.get());
if (moduleDisplayInterface->setHistogramControl(
hidl_histogram_control_t::HISTOGRAM_CONTROL_CANCEL) != NO_ERROR) {
return histogram::HistogramErrorCode::DISABLE_HIST_ERROR;
}
return histogram::HistogramErrorCode::NONE;
}
void histogram::HistogramMediator::HistogramReceiver::callbackHistogram(char16_t *bin) {
std::unique_lock<std::mutex> lk(mDataCollectingMutex);
if (mHistReq_pending == true) {
std::memcpy(mHistData, bin, HISTOGRAM_BINS_SIZE * sizeof(char16_t));
mHistReq_pending = false;
}
mHistData_cv.notify_all();
}
int histogram::HistogramMediator::calculateThreshold(const RoiRect &roi) {
int threshold = ((roi.bottom - roi.top) * (roi.right - roi.left)) >> 16;
return threshold + 1;
}
histogram::HistogramErrorCode histogram::HistogramMediator::setRoiWeightThreshold(
const RoiRect roi, const Weight weight, const HistogramPos pos) {
int threshold = calculateThreshold(roi);
mIDLHistogram.setHistogramROI((uint16_t)roi.left, (uint16_t)roi.top,
(uint16_t)(roi.right - roi.left),
(uint16_t)(roi.bottom - roi.top));
mIDLHistogram.setHistogramWeights(weight.weightR, weight.weightG, weight.weightB);
mIDLHistogram.setHistogramThreshold(threshold);
mIDLHistogram.setHistogramPos(pos);
return histogram::HistogramErrorCode::NONE;
}
histogram::HistogramErrorCode histogram::HistogramMediator::collectRoiLuma(
std::vector<char16_t> *buf) {
std::unique_lock<std::mutex> lk(mIDLHistogram.mDataCollectingMutex);
mIDLHistogram.mHistData_cv.wait_for(lk, std::chrono::milliseconds(50), [this]() {
return (!isDisplayPowerOff() && !mIDLHistogram.mHistReq_pending);
});
if (mIDLHistogram.mHistReq_pending == false) setSampleFrameCounter(getFrameCount());
buf->assign(mIDLHistogram.mHistData, mIDLHistogram.mHistData + HISTOGRAM_BINS_SIZE);
return histogram::HistogramErrorCode::NONE;
}
histogram::RoiRect histogram::HistogramMediator::calRoi(RoiRect roi) {
RoiRect roi_return = {-1, -1, -1, -1};
ExynosDisplayDrmInterface *moduleDisplayInterface =
static_cast<ExynosDisplayDrmInterface *>(mDisplay->mDisplayInterface.get());
roi_return.left = roi.left * moduleDisplayInterface->getActiveModeHDisplay() /
moduleDisplayInterface->panelHsize();
roi_return.top = roi.top * moduleDisplayInterface->getActiveModeVDisplay() /
moduleDisplayInterface->panelVsize();
roi_return.right = roi.right * moduleDisplayInterface->getActiveModeHDisplay() /
moduleDisplayInterface->panelHsize();
roi_return.bottom = roi.bottom * moduleDisplayInterface->getActiveModeVDisplay() /
moduleDisplayInterface->panelVsize();
return roi_return;
}
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