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86 lines
2.1 KiB
86 lines
2.1 KiB
7 months ago
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// Copyright 2018 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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#include "SurfaceFlinger.h"
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#include "AndroidWindow.h"
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#include <stdio.h>
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#define E(fmt,...) \
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fprintf(stderr, "%s: " fmt "\n", __func__, ##__VA_ARGS__);
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using android::base::AutoLock;
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using android::base::Lock;
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namespace aemu {
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SurfaceFlinger::SurfaceFlinger(
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int refreshRate,
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AndroidWindow* composeWindow,
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std::vector<ANativeWindowBuffer*> appBuffers,
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SurfaceFlinger::ComposerConstructFunc&& composerFunc,
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Vsync::Callback vsyncFunc)
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: mComposeWindow(composeWindow),
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mComposerImpl(composerFunc(mComposeWindow, &mApp2Sf, &mSf2App)),
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mVsync(refreshRate, std::move(vsyncFunc)) {
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for (auto buffer : appBuffers) {
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mSf2App.queueBuffer(AndroidBufferQueue::Item(buffer));
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}
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}
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SurfaceFlinger::~SurfaceFlinger() {
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join();
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}
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void SurfaceFlinger::start() {
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mVsync.start();
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}
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void SurfaceFlinger::join() {
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mVsync.join();
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}
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void SurfaceFlinger::connectWindow(AndroidWindow* window) {
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AutoLock lock(mLock);
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disconnectWindow();
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if (!window) return;
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window->setProducer(&mSf2App, &mApp2Sf);
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// and prime the queue again
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AndroidBufferQueue::Item item;
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while (mApp2Sf.try_dequeueBuffer(&item)) {
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mSf2App.queueBuffer(item);
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}
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mCurrentWindow = window;
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}
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void SurfaceFlinger::advanceFrame() {
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mComposerImpl->advanceFrame();
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}
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void SurfaceFlinger::disconnectWindow() {
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if (!mCurrentWindow) return;
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mCurrentWindow->setProducer(nullptr, nullptr);
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mCurrentWindow = nullptr;
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}
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} // namespace aemu
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