100 lines
2.7 KiB
C++
100 lines
2.7 KiB
C++
/*
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* Copyright (C) 2011 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 <string.h>
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#include <utils/Errors.h>
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#include <gui/BitTube.h>
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#include <gui/DisplayEventReceiver.h>
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#include <gui/IDisplayEventConnection.h>
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#include <gui/ISurfaceComposer.h>
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#include <private/gui/ComposerService.h>
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// ---------------------------------------------------------------------------
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namespace android {
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// ---------------------------------------------------------------------------
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DisplayEventReceiver::DisplayEventReceiver() {
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sp<ISurfaceComposer> sf(ComposerService::getComposerService());
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if (sf != NULL) {
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mEventConnection = sf->createDisplayEventConnection();
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if (mEventConnection != NULL) {
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mDataChannel = mEventConnection->getDataChannel();
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}
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}
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}
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DisplayEventReceiver::~DisplayEventReceiver() {
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}
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status_t DisplayEventReceiver::initCheck() const {
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if (mDataChannel != NULL)
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return NO_ERROR;
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return NO_INIT;
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}
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int DisplayEventReceiver::getFd() const {
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if (mDataChannel == NULL)
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return NO_INIT;
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return mDataChannel->getFd();
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}
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status_t DisplayEventReceiver::setVsyncRate(uint32_t count) {
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if (int32_t(count) < 0)
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return BAD_VALUE;
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if (mEventConnection != NULL) {
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mEventConnection->setVsyncRate(count);
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return NO_ERROR;
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}
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return NO_INIT;
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}
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status_t DisplayEventReceiver::requestNextVsync() {
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if (mEventConnection != NULL) {
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mEventConnection->requestNextVsync();
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return NO_ERROR;
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}
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return NO_INIT;
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}
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ssize_t DisplayEventReceiver::getEvents(DisplayEventReceiver::Event* events,
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size_t count) {
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return DisplayEventReceiver::getEvents(mDataChannel, events, count);
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}
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ssize_t DisplayEventReceiver::getEvents(const sp<BitTube>& dataChannel,
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Event* events, size_t count)
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{
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return BitTube::recvObjects(dataChannel, events, count);
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}
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ssize_t DisplayEventReceiver::sendEvents(const sp<BitTube>& dataChannel,
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Event const* events, size_t count)
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{
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return BitTube::sendObjects(dataChannel, events, count);
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}
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// ---------------------------------------------------------------------------
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}; // namespace android
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