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/*
* Copyright 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.
*/
#ifndef ANDROID_HWC_FENCEDBUFFER_H
#define ANDROID_HWC_FENCEDBUFFER_H
#include <aidlcommonsupport/NativeHandle.h>
#include <android-base/unique_fd.h>
#include <cutils/native_handle.h>
namespace aidl::android::hardware::graphics::composer3::impl {
class FencedBuffer {
public:
FencedBuffer() : mBuffer(nullptr) {}
void set(buffer_handle_t buffer, const ndk::ScopedFileDescriptor& fence) {
mBuffer = buffer;
mFence = GetUniqueFd(fence);
}
buffer_handle_t getBuffer() const { return mBuffer; }
::android::base::unique_fd getFence() const {
if (mFence.ok()) {
return ::android::base::unique_fd(dup(mFence.get()));
} else {
return ::android::base::unique_fd();
}
}
private:
static ::android::base::unique_fd GetUniqueFd(
const ndk::ScopedFileDescriptor& in) {
auto& sfd = const_cast<ndk::ScopedFileDescriptor&>(in);
::android::base::unique_fd ret(sfd.get());
*sfd.getR() = -1;
return ret;
}
buffer_handle_t mBuffer;
::android::base::unique_fd mFence;
};
} // namespace aidl::android::hardware::graphics::composer3::impl
#endif