mirror of
https://github.com/Evolution-X/hardware_interfaces
synced 2026-02-01 11:36:00 +00:00
519c1675c3
Bug: 37540361 Test: marlin, smoke test GCA Change-Id: I9d58d9c6af20b37c016f036bce2dcf55817c59aa
143 lines
3.6 KiB
C++
143 lines
3.6 KiB
C++
/*
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* Copyright (C) 2017 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 "HandleImporter"
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#include "HandleImporter.h"
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#include <log/log.h>
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namespace android {
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namespace hardware {
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namespace camera {
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namespace common {
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namespace V1_0 {
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namespace helper {
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using MapperError = android::hardware::graphics::mapper::V2_0::Error;
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HandleImporter::HandleImporter() : mInitialized(false) {}
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void HandleImporter::initializeLocked() {
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if (mInitialized) {
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return;
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}
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mMapper = IMapper::getService();
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if (mMapper == nullptr) {
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ALOGE("%s: cannnot acccess graphics mapper HAL!", __FUNCTION__);
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return;
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}
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mInitialized = true;
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return;
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}
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void HandleImporter::cleanup() {
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mMapper.clear();
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mInitialized = false;
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}
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// In IComposer, any buffer_handle_t is owned by the caller and we need to
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// make a clone for hwcomposer2. We also need to translate empty handle
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// to nullptr. This function does that, in-place.
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bool HandleImporter::importBuffer(buffer_handle_t& handle) {
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if (!handle->numFds && !handle->numInts) {
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handle = nullptr;
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return true;
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}
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Mutex::Autolock lock(mLock);
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if (!mInitialized) {
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initializeLocked();
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}
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if (mMapper == nullptr) {
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ALOGE("%s: mMapper is null!", __FUNCTION__);
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return false;
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}
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MapperError error;
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buffer_handle_t importedHandle;
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auto ret = mMapper->importBuffer(
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hidl_handle(handle),
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[&](const auto& tmpError, const auto& tmpBufferHandle) {
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error = tmpError;
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importedHandle = static_cast<buffer_handle_t>(tmpBufferHandle);
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});
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if (!ret.isOk()) {
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ALOGE("%s: mapper importBuffer failed: %s",
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__FUNCTION__, ret.description().c_str());
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return false;
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}
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if (error != MapperError::NONE) {
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return false;
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}
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handle = importedHandle;
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return true;
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}
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void HandleImporter::freeBuffer(buffer_handle_t handle) {
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if (!handle) {
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return;
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}
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Mutex::Autolock lock(mLock);
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if (mMapper == nullptr) {
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ALOGE("%s: mMapper is null!", __FUNCTION__);
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return;
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}
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auto ret = mMapper->freeBuffer(const_cast<native_handle_t*>(handle));
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if (!ret.isOk()) {
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ALOGE("%s: mapper freeBuffer failed: %s",
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__FUNCTION__, ret.description().c_str());
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}
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}
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bool HandleImporter::importFence(const native_handle_t* handle, int& fd) const {
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if (handle == nullptr || handle->numFds == 0) {
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fd = -1;
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} else if (handle->numFds == 1) {
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fd = dup(handle->data[0]);
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if (fd < 0) {
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ALOGE("failed to dup fence fd %d", handle->data[0]);
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return false;
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}
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} else {
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ALOGE("invalid fence handle with %d file descriptors",
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handle->numFds);
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return false;
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}
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return true;
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}
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void HandleImporter::closeFence(int fd) const {
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if (fd >= 0) {
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close(fd);
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}
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}
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} // namespace helper
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} // namespace V1_0
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} // namespace common
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} // namespace camera
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} // namespace hardware
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} // namespace android
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