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/*
* Copyright 2019 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.
*/
#define LOG_TAG "ComposerResources 2.2"
#include "composer-resources/2.2/ComposerResources.h"
namespace android {
namespace hardware {
namespace graphics {
namespace composer {
namespace V2_2 {
namespace hal {
using V2_1::Display;
using V2_1::Error;
using V2_1::Layer;
using V2_1::hal::ComposerHandleCache;
using V2_1::hal::ComposerHandleImporter;
Error ComposerDisplayResource::getReadbackBuffer(const native_handle_t* inHandle,
const native_handle_t** outHandle,
const native_handle** outReplacedHandle) {
const uint32_t slot = 0;
const bool fromCache = false;
return mReadbackBufferCache.getHandle(slot, fromCache, inHandle, outHandle, outReplacedHandle);
}
std::unique_ptr<ComposerResources> ComposerResources::create() {
auto resources = std::make_unique<ComposerResources>();
return resources->init() ? std::move(resources) : nullptr;
}
Error ComposerResources::getDisplayReadbackBuffer(Display display, const native_handle_t* rawHandle,
const native_handle_t** outHandle,
ReplacedHandle* outReplacedHandle) {
// import buffer
const native_handle_t* importedHandle;
Error error = mImporter.importBuffer(rawHandle, &importedHandle);
if (error != Error::NONE) {
return error;
}
std::lock_guard<std::mutex> lock(mDisplayResourcesMutex);
auto iter = mDisplayResources.find(display);
if (iter == mDisplayResources.end()) {
mImporter.freeBuffer(importedHandle);
return Error::BAD_DISPLAY;
}
ComposerDisplayResource& displayResource =
*static_cast<ComposerDisplayResource*>(iter->second.get());
// update cache
const native_handle_t* replacedHandle;
error = displayResource.getReadbackBuffer(importedHandle, outHandle, &replacedHandle);
if (error != Error::NONE) {
mImporter.freeBuffer(importedHandle);
return error;
}
outReplacedHandle->reset(&mImporter, replacedHandle);
return Error::NONE;
}
} // namespace hal
} // namespace V2_2
} // namespace composer
} // namespace graphics
} // namespace hardware
} // namespace android
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