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108 lines
2.6 KiB
108 lines
2.6 KiB
4 months ago
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/*
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* Copyright (C) 2019 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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#include <log/log.h>
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#include "HalDisplay.h"
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namespace android {
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namespace automotive {
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namespace evs {
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namespace V1_0 {
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namespace implementation {
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HalDisplay::HalDisplay(sp<IEvsDisplay>& display) :
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mHwDisplay(display) {
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// nothing to do.
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}
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HalDisplay::~HalDisplay() {
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shutdown();
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}
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void HalDisplay::shutdown() {
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// simply release a strong pointer to remote display object.
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mHwDisplay = nullptr;
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}
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/**
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* Returns a strong pointer to remote display object.
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*/
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sp<IEvsDisplay> HalDisplay::getHwDisplay() {
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return mHwDisplay;
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}
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/**
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* Gets basic display information from a hardware display object
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* and returns.
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*/
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Return<void> HalDisplay::getDisplayInfo(getDisplayInfo_cb _hidl_cb) {
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if (mHwDisplay) {
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mHwDisplay->getDisplayInfo(_hidl_cb);
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}
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return Void();
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}
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/**
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* Sets the display state as what the clients wants.
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*/
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Return<EvsResult> HalDisplay::setDisplayState(DisplayState state) {
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if (mHwDisplay) {
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return mHwDisplay->setDisplayState(state);
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} else {
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return EvsResult::UNDERLYING_SERVICE_ERROR;
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}
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}
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/**
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* Gets current display state from a hardware display object and return.
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*/
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Return<DisplayState> HalDisplay::getDisplayState() {
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if (mHwDisplay) {
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return mHwDisplay->getDisplayState();
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} else {
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return DisplayState::DEAD;
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}
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}
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/**
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* Returns a handle to a frame buffer associated with the display.
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*/
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Return<void> HalDisplay::getTargetBuffer(getTargetBuffer_cb _hidl_cb) {
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if (mHwDisplay) {
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mHwDisplay->getTargetBuffer(_hidl_cb);
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}
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return Void();
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}
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/**
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* Notifies the display that the buffer is ready to be used.
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*/
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Return<EvsResult> HalDisplay::returnTargetBufferForDisplay(const BufferDesc& buffer) {
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if (mHwDisplay) {
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return mHwDisplay->returnTargetBufferForDisplay(buffer);
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} else {
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return EvsResult::OWNERSHIP_LOST;
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}
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}
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} // namespace implementation
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} // namespace V1_0
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} // namespace evs
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} // namespace automotive
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} // namespace android
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