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118 lines
3.5 KiB
118 lines
3.5 KiB
/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "CachedStreamBuffer"
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#include "cached_stream_buffer.h"
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#include <hardware/gralloc.h>
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#include <log/log.h>
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#include <sync/sync.h>
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namespace android::hardware::camera::device::V3_4::implementation {
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namespace {
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HandleImporter g_importer;
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}
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ReleaseFence::ReleaseFence(int fence_fd) : handle_(nullptr) {
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if (fence_fd >= 0) {
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handle_ = native_handle_create(/*numFds*/ 1, /*numInts*/ 0);
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handle_->data[0] = fence_fd;
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}
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}
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ReleaseFence::~ReleaseFence() {
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if (handle_ != nullptr) {
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native_handle_close(handle_);
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native_handle_delete(handle_);
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}
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}
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CachedStreamBuffer::CachedStreamBuffer()
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: buffer_(nullptr), buffer_id_(0), stream_id_(0), acquire_fence_(-1) {}
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CachedStreamBuffer::CachedStreamBuffer(const StreamBuffer& buffer)
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: buffer_(buffer.buffer.getNativeHandle()),
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buffer_id_(buffer.bufferId),
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stream_id_(buffer.streamId),
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acquire_fence_(-1) {
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g_importer.importBuffer(buffer_);
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g_importer.importFence(buffer.acquireFence, acquire_fence_);
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}
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CachedStreamBuffer::CachedStreamBuffer(CachedStreamBuffer&& from) noexcept {
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buffer_ = from.buffer_;
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buffer_id_ = from.buffer_id_;
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stream_id_ = from.stream_id_;
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acquire_fence_ = from.acquire_fence_;
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from.acquire_fence_ = -1;
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from.buffer_ = nullptr;
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}
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CachedStreamBuffer& CachedStreamBuffer::operator=(
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CachedStreamBuffer&& from) noexcept {
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if (this != &from) {
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buffer_ = from.buffer_;
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buffer_id_ = from.buffer_id_;
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stream_id_ = from.stream_id_;
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acquire_fence_ = from.acquire_fence_;
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from.acquire_fence_ = -1;
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from.buffer_ = nullptr;
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}
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return *this;
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}
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CachedStreamBuffer::~CachedStreamBuffer() {
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if (buffer_ != nullptr) {
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g_importer.freeBuffer(buffer_);
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}
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g_importer.closeFence(acquire_fence_);
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}
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void CachedStreamBuffer::importFence(const native_handle_t* fence_handle) {
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g_importer.closeFence(acquire_fence_);
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g_importer.importFence(fence_handle, acquire_fence_);
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}
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YCbCrLayout CachedStreamBuffer::acquireAsYUV(int32_t width, int32_t height,
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int timeout_ms) {
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if (acquire_fence_ >= 0) {
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if (sync_wait(acquire_fence_, timeout_ms)) {
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ALOGW("%s: timeout while waiting acquire fence", __FUNCTION__);
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return {};
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} else {
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::close(acquire_fence_);
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acquire_fence_ = -1;
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}
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}
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IMapper::Rect region{0, 0, width, height};
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return g_importer.lockYCbCr(buffer_, GRALLOC_USAGE_SW_WRITE_OFTEN, region);
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}
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void* CachedStreamBuffer::acquireAsBlob(int32_t size, int timeout_ms) {
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if (acquire_fence_ >= 0) {
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if (sync_wait(acquire_fence_, timeout_ms)) {
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return nullptr;
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} else {
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::close(acquire_fence_);
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acquire_fence_ = -1;
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}
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}
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return g_importer.lock(buffer_, GRALLOC_USAGE_SW_WRITE_OFTEN, size);
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}
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int CachedStreamBuffer::release() { return g_importer.unlock(buffer_); }
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} // namespace android::hardware::camera::device::V3_4::implementation
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