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804 lines
28 KiB
804 lines
28 KiB
/*
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* Copyright 2014,2016 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 <inttypes.h>
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#define LOG_TAG "Camera3StreamSplitter"
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#define ATRACE_TAG ATRACE_TAG_CAMERA
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//#define LOG_NDEBUG 0
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#include <gui/BufferItem.h>
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#include <gui/IGraphicBufferConsumer.h>
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#include <gui/IGraphicBufferProducer.h>
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#include <gui/BufferQueue.h>
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#include <gui/Surface.h>
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#include <ui/GraphicBuffer.h>
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#include <binder/ProcessState.h>
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#include <utils/Trace.h>
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#include <cutils/atomic.h>
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#include "Camera3StreamSplitter.h"
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namespace android {
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status_t Camera3StreamSplitter::connect(const std::unordered_map<size_t, sp<Surface>> &surfaces,
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uint64_t consumerUsage, uint64_t producerUsage, size_t halMaxBuffers, uint32_t width,
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uint32_t height, android::PixelFormat format, sp<Surface>* consumer) {
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ATRACE_CALL();
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if (consumer == nullptr) {
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SP_LOGE("%s: consumer pointer is NULL", __FUNCTION__);
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return BAD_VALUE;
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}
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Mutex::Autolock lock(mMutex);
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status_t res = OK;
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if (mOutputs.size() > 0 || mConsumer != nullptr) {
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SP_LOGE("%s: already connected", __FUNCTION__);
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return BAD_VALUE;
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}
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if (mBuffers.size() > 0) {
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SP_LOGE("%s: still has %zu pending buffers", __FUNCTION__, mBuffers.size());
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return BAD_VALUE;
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}
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mMaxHalBuffers = halMaxBuffers;
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mConsumerName = getUniqueConsumerName();
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// Add output surfaces. This has to be before creating internal buffer queue
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// in order to get max consumer side buffers.
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for (auto &it : surfaces) {
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if (it.second == nullptr) {
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SP_LOGE("%s: Fatal: surface is NULL", __FUNCTION__);
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return BAD_VALUE;
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}
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res = addOutputLocked(it.first, it.second);
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if (res != OK) {
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SP_LOGE("%s: Failed to add output surface: %s(%d)",
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__FUNCTION__, strerror(-res), res);
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return res;
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}
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}
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// Create BufferQueue for input
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BufferQueue::createBufferQueue(&mProducer, &mConsumer);
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// Allocate 1 extra buffer to handle the case where all buffers are detached
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// from input, and attached to the outputs. In this case, the input queue's
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// dequeueBuffer can still allocate 1 extra buffer before being blocked by
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// the output's attachBuffer().
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mMaxConsumerBuffers++;
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mBufferItemConsumer = new BufferItemConsumer(mConsumer, consumerUsage, mMaxConsumerBuffers);
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if (mBufferItemConsumer == nullptr) {
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return NO_MEMORY;
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}
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mConsumer->setConsumerName(mConsumerName);
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*consumer = new Surface(mProducer);
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if (*consumer == nullptr) {
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return NO_MEMORY;
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}
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res = mProducer->setAsyncMode(true);
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if (res != OK) {
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SP_LOGE("%s: Failed to enable input queue async mode: %s(%d)", __FUNCTION__,
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strerror(-res), res);
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return res;
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}
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res = mConsumer->consumerConnect(this, /* controlledByApp */ false);
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mWidth = width;
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mHeight = height;
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mFormat = format;
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mProducerUsage = producerUsage;
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mAcquiredInputBuffers = 0;
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SP_LOGV("%s: connected", __FUNCTION__);
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return res;
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}
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status_t Camera3StreamSplitter::getOnFrameAvailableResult() {
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ATRACE_CALL();
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return mOnFrameAvailableRes.load();
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}
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void Camera3StreamSplitter::disconnect() {
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ATRACE_CALL();
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Mutex::Autolock lock(mMutex);
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for (auto& notifier : mNotifiers) {
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sp<IGraphicBufferProducer> producer = notifier.first;
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sp<OutputListener> listener = notifier.second;
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IInterface::asBinder(producer)->unlinkToDeath(listener);
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}
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mNotifiers.clear();
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for (auto& output : mOutputs) {
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if (output.second != nullptr) {
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output.second->disconnect(NATIVE_WINDOW_API_CAMERA);
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}
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}
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mOutputs.clear();
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mOutputSlots.clear();
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mConsumerBufferCount.clear();
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if (mConsumer.get() != nullptr) {
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mConsumer->consumerDisconnect();
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}
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if (mBuffers.size() > 0) {
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SP_LOGW("%zu buffers still being tracked", mBuffers.size());
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mBuffers.clear();
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}
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mMaxHalBuffers = 0;
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mMaxConsumerBuffers = 0;
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mAcquiredInputBuffers = 0;
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SP_LOGV("%s: Disconnected", __FUNCTION__);
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}
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Camera3StreamSplitter::Camera3StreamSplitter(bool useHalBufManager) :
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mUseHalBufManager(useHalBufManager) {}
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Camera3StreamSplitter::~Camera3StreamSplitter() {
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disconnect();
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}
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status_t Camera3StreamSplitter::addOutput(size_t surfaceId, const sp<Surface>& outputQueue) {
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ATRACE_CALL();
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Mutex::Autolock lock(mMutex);
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status_t res = addOutputLocked(surfaceId, outputQueue);
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if (res != OK) {
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SP_LOGE("%s: addOutputLocked failed %d", __FUNCTION__, res);
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return res;
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}
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if (mMaxConsumerBuffers > mAcquiredInputBuffers) {
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res = mConsumer->setMaxAcquiredBufferCount(mMaxConsumerBuffers);
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}
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return res;
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}
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status_t Camera3StreamSplitter::addOutputLocked(size_t surfaceId, const sp<Surface>& outputQueue) {
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ATRACE_CALL();
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if (outputQueue == nullptr) {
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SP_LOGE("addOutput: outputQueue must not be NULL");
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return BAD_VALUE;
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}
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if (mOutputs[surfaceId] != nullptr) {
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SP_LOGE("%s: surfaceId: %u already taken!", __FUNCTION__, (unsigned) surfaceId);
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return BAD_VALUE;
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}
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status_t res = native_window_set_buffers_dimensions(outputQueue.get(),
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mWidth, mHeight);
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if (res != NO_ERROR) {
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SP_LOGE("addOutput: failed to set buffer dimensions (%d)", res);
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return res;
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}
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res = native_window_set_buffers_format(outputQueue.get(),
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mFormat);
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if (res != OK) {
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ALOGE("%s: Unable to configure stream buffer format %#x for surfaceId %zu",
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__FUNCTION__, mFormat, surfaceId);
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return res;
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}
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sp<IGraphicBufferProducer> gbp = outputQueue->getIGraphicBufferProducer();
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// Connect to the buffer producer
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sp<OutputListener> listener(new OutputListener(this, gbp));
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IInterface::asBinder(gbp)->linkToDeath(listener);
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res = outputQueue->connect(NATIVE_WINDOW_API_CAMERA, listener);
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if (res != NO_ERROR) {
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SP_LOGE("addOutput: failed to connect (%d)", res);
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return res;
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}
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// Query consumer side buffer count, and update overall buffer count
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int maxConsumerBuffers = 0;
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res = static_cast<ANativeWindow*>(outputQueue.get())->query(
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outputQueue.get(),
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NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &maxConsumerBuffers);
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if (res != OK) {
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SP_LOGE("%s: Unable to query consumer undequeued buffer count"
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" for surface", __FUNCTION__);
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return res;
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}
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SP_LOGV("%s: Consumer wants %d buffers, Producer wants %zu", __FUNCTION__,
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maxConsumerBuffers, mMaxHalBuffers);
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// The output slot count requirement can change depending on the current amount
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// of outputs and incoming buffer consumption rate. To avoid any issues with
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// insufficient slots, set their count to the maximum supported. The output
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// surface buffer allocation is disabled so no real buffers will get allocated.
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size_t totalBufferCount = BufferQueue::NUM_BUFFER_SLOTS;
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res = native_window_set_buffer_count(outputQueue.get(),
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totalBufferCount);
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if (res != OK) {
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SP_LOGE("%s: Unable to set buffer count for surface %p",
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__FUNCTION__, outputQueue.get());
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return res;
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}
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// Set dequeueBuffer/attachBuffer timeout if the consumer is not hw composer or hw texture.
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// We need skip these cases as timeout will disable the non-blocking (async) mode.
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uint64_t usage = 0;
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res = native_window_get_consumer_usage(static_cast<ANativeWindow*>(outputQueue.get()), &usage);
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if (!(usage & (GRALLOC_USAGE_HW_COMPOSER | GRALLOC_USAGE_HW_TEXTURE))) {
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nsecs_t timeout = mUseHalBufManager ?
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kHalBufMgrDequeueBufferTimeout : kNormalDequeueBufferTimeout;
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outputQueue->setDequeueTimeout(timeout);
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}
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res = gbp->allowAllocation(false);
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if (res != OK) {
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SP_LOGE("%s: Failed to turn off allocation for outputQueue", __FUNCTION__);
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return res;
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}
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// Add new entry into mOutputs
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mOutputs[surfaceId] = gbp;
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mConsumerBufferCount[surfaceId] = maxConsumerBuffers;
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if (mConsumerBufferCount[surfaceId] > mMaxHalBuffers) {
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SP_LOGW("%s: Consumer buffer count %zu larger than max. Hal buffers: %zu", __FUNCTION__,
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mConsumerBufferCount[surfaceId], mMaxHalBuffers);
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}
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mNotifiers[gbp] = listener;
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mOutputSlots[gbp] = std::make_unique<OutputSlots>(totalBufferCount);
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mMaxConsumerBuffers += maxConsumerBuffers;
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return NO_ERROR;
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}
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status_t Camera3StreamSplitter::removeOutput(size_t surfaceId) {
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ATRACE_CALL();
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Mutex::Autolock lock(mMutex);
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status_t res = removeOutputLocked(surfaceId);
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if (res != OK) {
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SP_LOGE("%s: removeOutputLocked failed %d", __FUNCTION__, res);
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return res;
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}
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if (mAcquiredInputBuffers < mMaxConsumerBuffers) {
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res = mConsumer->setMaxAcquiredBufferCount(mMaxConsumerBuffers);
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if (res != OK) {
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SP_LOGE("%s: setMaxAcquiredBufferCount failed %d", __FUNCTION__, res);
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return res;
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}
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}
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return res;
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}
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status_t Camera3StreamSplitter::removeOutputLocked(size_t surfaceId) {
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if (mOutputs[surfaceId] == nullptr) {
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SP_LOGE("%s: output surface is not present!", __FUNCTION__);
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return BAD_VALUE;
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}
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sp<IGraphicBufferProducer> gbp = mOutputs[surfaceId];
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//Search and decrement the ref. count of any buffers that are
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//still attached to the removed surface.
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std::vector<uint64_t> pendingBufferIds;
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auto& outputSlots = *mOutputSlots[gbp];
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for (size_t i = 0; i < outputSlots.size(); i++) {
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if (outputSlots[i] != nullptr) {
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pendingBufferIds.push_back(outputSlots[i]->getId());
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auto rc = gbp->detachBuffer(i);
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if (rc != NO_ERROR) {
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//Buffers that fail to detach here will be scheduled for detach in the
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//input buffer queue and the rest of the registered outputs instead.
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//This will help ensure that camera stops accessing buffers that still
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//can get referenced by the disconnected output.
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mDetachedBuffers.emplace(outputSlots[i]->getId());
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}
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}
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}
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mOutputs[surfaceId] = nullptr;
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mOutputSlots[gbp] = nullptr;
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for (const auto &id : pendingBufferIds) {
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decrementBufRefCountLocked(id, surfaceId);
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}
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auto res = IInterface::asBinder(gbp)->unlinkToDeath(mNotifiers[gbp]);
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if (res != OK) {
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SP_LOGE("%s: Failed to unlink producer death listener: %d ", __FUNCTION__, res);
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return res;
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}
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res = gbp->disconnect(NATIVE_WINDOW_API_CAMERA);
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if (res != OK) {
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SP_LOGE("%s: Unable disconnect from producer interface: %d ", __FUNCTION__, res);
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return res;
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}
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mNotifiers[gbp] = nullptr;
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mMaxConsumerBuffers -= mConsumerBufferCount[surfaceId];
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mConsumerBufferCount[surfaceId] = 0;
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return res;
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}
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status_t Camera3StreamSplitter::outputBufferLocked(const sp<IGraphicBufferProducer>& output,
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const BufferItem& bufferItem, size_t surfaceId) {
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ATRACE_CALL();
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status_t res;
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IGraphicBufferProducer::QueueBufferInput queueInput(
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bufferItem.mTimestamp, bufferItem.mIsAutoTimestamp,
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bufferItem.mDataSpace, bufferItem.mCrop,
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static_cast<int32_t>(bufferItem.mScalingMode),
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bufferItem.mTransform, bufferItem.mFence);
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IGraphicBufferProducer::QueueBufferOutput queueOutput;
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uint64_t bufferId = bufferItem.mGraphicBuffer->getId();
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const BufferTracker& tracker = *(mBuffers[bufferId]);
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int slot = getSlotForOutputLocked(output, tracker.getBuffer());
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// In case the output BufferQueue has its own lock, if we hold splitter lock while calling
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// queueBuffer (which will try to acquire the output lock), the output could be holding its
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// own lock calling releaseBuffer (which will try to acquire the splitter lock), running into
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// circular lock situation.
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mMutex.unlock();
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res = output->queueBuffer(slot, queueInput, &queueOutput);
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mMutex.lock();
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SP_LOGV("%s: Queuing buffer to buffer queue %p slot %d returns %d",
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__FUNCTION__, output.get(), slot, res);
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//During buffer queue 'mMutex' is not held which makes the removal of
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//"output" possible. Check whether this is the case and return.
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if (mOutputSlots[output] == nullptr) {
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return res;
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}
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if (res != OK) {
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if (res != NO_INIT && res != DEAD_OBJECT) {
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SP_LOGE("Queuing buffer to output failed (%d)", res);
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}
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// If we just discovered that this output has been abandoned, note
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// that, increment the release count so that we still release this
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// buffer eventually, and move on to the next output
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onAbandonedLocked();
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decrementBufRefCountLocked(bufferItem.mGraphicBuffer->getId(), surfaceId);
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return res;
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}
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// If the queued buffer replaces a pending buffer in the async
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// queue, no onBufferReleased is called by the buffer queue.
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// Proactively trigger the callback to avoid buffer loss.
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if (queueOutput.bufferReplaced) {
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onBufferReplacedLocked(output, surfaceId);
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}
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return res;
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}
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String8 Camera3StreamSplitter::getUniqueConsumerName() {
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static volatile int32_t counter = 0;
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return String8::format("Camera3StreamSplitter-%d", android_atomic_inc(&counter));
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}
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status_t Camera3StreamSplitter::notifyBufferReleased(const sp<GraphicBuffer>& buffer) {
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ATRACE_CALL();
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Mutex::Autolock lock(mMutex);
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uint64_t bufferId = buffer->getId();
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std::unique_ptr<BufferTracker> tracker_ptr = std::move(mBuffers[bufferId]);
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mBuffers.erase(bufferId);
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return OK;
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}
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status_t Camera3StreamSplitter::attachBufferToOutputs(ANativeWindowBuffer* anb,
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const std::vector<size_t>& surface_ids) {
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ATRACE_CALL();
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status_t res = OK;
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Mutex::Autolock lock(mMutex);
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sp<GraphicBuffer> gb(static_cast<GraphicBuffer*>(anb));
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uint64_t bufferId = gb->getId();
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// Initialize buffer tracker for this input buffer
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auto tracker = std::make_unique<BufferTracker>(gb, surface_ids);
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for (auto& surface_id : surface_ids) {
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sp<IGraphicBufferProducer>& gbp = mOutputs[surface_id];
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if (gbp.get() == nullptr) {
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//Output surface got likely removed by client.
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continue;
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}
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int slot = getSlotForOutputLocked(gbp, gb);
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if (slot != BufferItem::INVALID_BUFFER_SLOT) {
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//Buffer is already attached to this output surface.
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continue;
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}
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//Temporarly Unlock the mutex when trying to attachBuffer to the output
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//queue, because attachBuffer could block in case of a slow consumer. If
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//we block while holding the lock, onFrameAvailable and onBufferReleased
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//will block as well because they need to acquire the same lock.
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mMutex.unlock();
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res = gbp->attachBuffer(&slot, gb);
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mMutex.lock();
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if (res != OK) {
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SP_LOGE("%s: Cannot attachBuffer from GraphicBufferProducer %p: %s (%d)",
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__FUNCTION__, gbp.get(), strerror(-res), res);
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// TODO: might need to detach/cleanup the already attached buffers before return?
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return res;
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}
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if ((slot < 0) || (slot > BufferQueue::NUM_BUFFER_SLOTS)) {
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SP_LOGE("%s: Slot received %d either bigger than expected maximum %d or negative!",
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__FUNCTION__, slot, BufferQueue::NUM_BUFFER_SLOTS);
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return BAD_VALUE;
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}
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//During buffer attach 'mMutex' is not held which makes the removal of
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//"gbp" possible. Check whether this is the case and continue.
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if (mOutputSlots[gbp] == nullptr) {
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continue;
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}
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auto& outputSlots = *mOutputSlots[gbp];
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if (static_cast<size_t> (slot + 1) > outputSlots.size()) {
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outputSlots.resize(slot + 1);
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}
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if (outputSlots[slot] != nullptr) {
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// If the buffer is attached to a slot which already contains a buffer,
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// the previous buffer will be removed from the output queue. Decrement
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// the reference count accordingly.
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decrementBufRefCountLocked(outputSlots[slot]->getId(), surface_id);
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}
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SP_LOGV("%s: Attached buffer %p to slot %d on output %p.",__FUNCTION__, gb.get(),
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slot, gbp.get());
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outputSlots[slot] = gb;
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}
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mBuffers[bufferId] = std::move(tracker);
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return res;
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}
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void Camera3StreamSplitter::onFrameAvailable(const BufferItem& /*item*/) {
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ATRACE_CALL();
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Mutex::Autolock lock(mMutex);
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// Acquire and detach the buffer from the input
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BufferItem bufferItem;
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status_t res = mConsumer->acquireBuffer(&bufferItem, /* presentWhen */ 0);
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if (res != NO_ERROR) {
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SP_LOGE("%s: Acquiring buffer from input failed (%d)", __FUNCTION__, res);
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mOnFrameAvailableRes.store(res);
|
|
return;
|
|
}
|
|
|
|
uint64_t bufferId;
|
|
if (bufferItem.mGraphicBuffer != nullptr) {
|
|
mInputSlots[bufferItem.mSlot] = bufferItem;
|
|
} else if (bufferItem.mAcquireCalled) {
|
|
bufferItem.mGraphicBuffer = mInputSlots[bufferItem.mSlot].mGraphicBuffer;
|
|
mInputSlots[bufferItem.mSlot].mFrameNumber = bufferItem.mFrameNumber;
|
|
} else {
|
|
SP_LOGE("%s: Invalid input graphic buffer!", __FUNCTION__);
|
|
mOnFrameAvailableRes.store(BAD_VALUE);
|
|
return;
|
|
}
|
|
bufferId = bufferItem.mGraphicBuffer->getId();
|
|
|
|
if (mBuffers.find(bufferId) == mBuffers.end()) {
|
|
SP_LOGE("%s: Acquired buffer doesn't exist in attached buffer map",
|
|
__FUNCTION__);
|
|
mOnFrameAvailableRes.store(INVALID_OPERATION);
|
|
return;
|
|
}
|
|
|
|
mAcquiredInputBuffers++;
|
|
SP_LOGV("acquired buffer %" PRId64 " from input at slot %d",
|
|
bufferItem.mGraphicBuffer->getId(), bufferItem.mSlot);
|
|
|
|
if (bufferItem.mTransformToDisplayInverse) {
|
|
bufferItem.mTransform |= NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY;
|
|
}
|
|
|
|
// Attach and queue the buffer to each of the outputs
|
|
BufferTracker& tracker = *(mBuffers[bufferId]);
|
|
|
|
SP_LOGV("%s: BufferTracker for buffer %" PRId64 ", number of requests %zu",
|
|
__FUNCTION__, bufferItem.mGraphicBuffer->getId(), tracker.requestedSurfaces().size());
|
|
for (const auto id : tracker.requestedSurfaces()) {
|
|
|
|
if (mOutputs[id] == nullptr) {
|
|
//Output surface got likely removed by client.
|
|
continue;
|
|
}
|
|
|
|
res = outputBufferLocked(mOutputs[id], bufferItem, id);
|
|
if (res != OK) {
|
|
SP_LOGE("%s: outputBufferLocked failed %d", __FUNCTION__, res);
|
|
mOnFrameAvailableRes.store(res);
|
|
// If we fail to send buffer to certain output, keep sending to
|
|
// other outputs.
|
|
continue;
|
|
}
|
|
}
|
|
|
|
mOnFrameAvailableRes.store(res);
|
|
}
|
|
|
|
void Camera3StreamSplitter::onFrameReplaced(const BufferItem& item) {
|
|
ATRACE_CALL();
|
|
onFrameAvailable(item);
|
|
}
|
|
|
|
void Camera3StreamSplitter::decrementBufRefCountLocked(uint64_t id, size_t surfaceId) {
|
|
ATRACE_CALL();
|
|
|
|
if (mBuffers[id] == nullptr) {
|
|
return;
|
|
}
|
|
|
|
size_t referenceCount = mBuffers[id]->decrementReferenceCountLocked(surfaceId);
|
|
if (referenceCount > 0) {
|
|
return;
|
|
}
|
|
|
|
// We no longer need to track the buffer now that it is being returned to the
|
|
// input. Note that this should happen before we unlock the mutex and call
|
|
// releaseBuffer, to avoid the case where the same bufferId is acquired in
|
|
// attachBufferToOutputs resulting in a new BufferTracker with same bufferId
|
|
// overwrites the current one.
|
|
std::unique_ptr<BufferTracker> tracker_ptr = std::move(mBuffers[id]);
|
|
mBuffers.erase(id);
|
|
|
|
uint64_t bufferId = tracker_ptr->getBuffer()->getId();
|
|
int consumerSlot = -1;
|
|
uint64_t frameNumber;
|
|
auto inputSlot = mInputSlots.begin();
|
|
for (; inputSlot != mInputSlots.end(); inputSlot++) {
|
|
if (inputSlot->second.mGraphicBuffer->getId() == bufferId) {
|
|
consumerSlot = inputSlot->second.mSlot;
|
|
frameNumber = inputSlot->second.mFrameNumber;
|
|
break;
|
|
}
|
|
}
|
|
if (consumerSlot == -1) {
|
|
SP_LOGE("%s: Buffer missing inside input slots!", __FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
auto detachBuffer = mDetachedBuffers.find(bufferId);
|
|
bool detach = (detachBuffer != mDetachedBuffers.end());
|
|
if (detach) {
|
|
mDetachedBuffers.erase(detachBuffer);
|
|
mInputSlots.erase(inputSlot);
|
|
}
|
|
// Temporarily unlock mutex to avoid circular lock:
|
|
// 1. This function holds splitter lock, calls releaseBuffer which triggers
|
|
// onBufferReleased in Camera3OutputStream. onBufferReleased waits on the
|
|
// OutputStream lock
|
|
// 2. Camera3SharedOutputStream::getBufferLocked calls
|
|
// attachBufferToOutputs, which holds the stream lock, and waits for the
|
|
// splitter lock.
|
|
sp<IGraphicBufferConsumer> consumer(mConsumer);
|
|
mMutex.unlock();
|
|
int res = NO_ERROR;
|
|
if (consumer != nullptr) {
|
|
if (detach) {
|
|
res = consumer->detachBuffer(consumerSlot);
|
|
} else {
|
|
res = consumer->releaseBuffer(consumerSlot, frameNumber,
|
|
EGL_NO_DISPLAY, EGL_NO_SYNC_KHR, tracker_ptr->getMergedFence());
|
|
}
|
|
} else {
|
|
SP_LOGE("%s: consumer has become null!", __FUNCTION__);
|
|
}
|
|
mMutex.lock();
|
|
|
|
if (res != NO_ERROR) {
|
|
if (detach) {
|
|
SP_LOGE("%s: detachBuffer returns %d", __FUNCTION__, res);
|
|
} else {
|
|
SP_LOGE("%s: releaseBuffer returns %d", __FUNCTION__, res);
|
|
}
|
|
} else {
|
|
if (mAcquiredInputBuffers == 0) {
|
|
ALOGW("%s: Acquired input buffer count already at zero!", __FUNCTION__);
|
|
} else {
|
|
mAcquiredInputBuffers--;
|
|
}
|
|
}
|
|
}
|
|
|
|
void Camera3StreamSplitter::onBufferReleasedByOutput(
|
|
const sp<IGraphicBufferProducer>& from) {
|
|
ATRACE_CALL();
|
|
sp<Fence> fence;
|
|
|
|
int slot = BufferItem::INVALID_BUFFER_SLOT;
|
|
auto res = from->dequeueBuffer(&slot, &fence, mWidth, mHeight, mFormat, mProducerUsage,
|
|
nullptr, nullptr);
|
|
Mutex::Autolock lock(mMutex);
|
|
handleOutputDequeueStatusLocked(res, slot);
|
|
if (res != OK) {
|
|
return;
|
|
}
|
|
|
|
size_t surfaceId = 0;
|
|
bool found = false;
|
|
for (const auto& it : mOutputs) {
|
|
if (it.second == from) {
|
|
found = true;
|
|
surfaceId = it.first;
|
|
break;
|
|
}
|
|
}
|
|
if (!found) {
|
|
SP_LOGV("%s: output surface not registered anymore!", __FUNCTION__);
|
|
return;
|
|
}
|
|
|
|
returnOutputBufferLocked(fence, from, surfaceId, slot);
|
|
}
|
|
|
|
void Camera3StreamSplitter::onBufferReplacedLocked(
|
|
const sp<IGraphicBufferProducer>& from, size_t surfaceId) {
|
|
ATRACE_CALL();
|
|
sp<Fence> fence;
|
|
|
|
int slot = BufferItem::INVALID_BUFFER_SLOT;
|
|
auto res = from->dequeueBuffer(&slot, &fence, mWidth, mHeight, mFormat, mProducerUsage,
|
|
nullptr, nullptr);
|
|
handleOutputDequeueStatusLocked(res, slot);
|
|
if (res != OK) {
|
|
return;
|
|
}
|
|
|
|
returnOutputBufferLocked(fence, from, surfaceId, slot);
|
|
}
|
|
|
|
void Camera3StreamSplitter::returnOutputBufferLocked(const sp<Fence>& fence,
|
|
const sp<IGraphicBufferProducer>& from, size_t surfaceId, int slot) {
|
|
sp<GraphicBuffer> buffer;
|
|
|
|
if (mOutputSlots[from] == nullptr) {
|
|
//Output surface got likely removed by client.
|
|
return;
|
|
}
|
|
|
|
auto outputSlots = *mOutputSlots[from];
|
|
buffer = outputSlots[slot];
|
|
BufferTracker& tracker = *(mBuffers[buffer->getId()]);
|
|
// Merge the release fence of the incoming buffer so that the fence we send
|
|
// back to the input includes all of the outputs' fences
|
|
if (fence != nullptr && fence->isValid()) {
|
|
tracker.mergeFence(fence);
|
|
}
|
|
|
|
auto detachBuffer = mDetachedBuffers.find(buffer->getId());
|
|
bool detach = (detachBuffer != mDetachedBuffers.end());
|
|
if (detach) {
|
|
auto res = from->detachBuffer(slot);
|
|
if (res == NO_ERROR) {
|
|
outputSlots[slot] = nullptr;
|
|
} else {
|
|
SP_LOGE("%s: detach buffer from output failed (%d)", __FUNCTION__, res);
|
|
}
|
|
}
|
|
|
|
// Check to see if this is the last outstanding reference to this buffer
|
|
decrementBufRefCountLocked(buffer->getId(), surfaceId);
|
|
}
|
|
|
|
void Camera3StreamSplitter::handleOutputDequeueStatusLocked(status_t res, int slot) {
|
|
if (res == NO_INIT) {
|
|
// If we just discovered that this output has been abandoned, note that,
|
|
// but we can't do anything else, since buffer is invalid
|
|
onAbandonedLocked();
|
|
} else if (res == IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION) {
|
|
SP_LOGE("%s: Producer needs to re-allocate buffer!", __FUNCTION__);
|
|
SP_LOGE("%s: This should not happen with buffer allocation disabled!", __FUNCTION__);
|
|
} else if (res == IGraphicBufferProducer::RELEASE_ALL_BUFFERS) {
|
|
SP_LOGE("%s: All slot->buffer mapping should be released!", __FUNCTION__);
|
|
SP_LOGE("%s: This should not happen with buffer allocation disabled!", __FUNCTION__);
|
|
} else if (res == NO_MEMORY) {
|
|
SP_LOGE("%s: No free buffers", __FUNCTION__);
|
|
} else if (res == WOULD_BLOCK) {
|
|
SP_LOGE("%s: Dequeue call will block", __FUNCTION__);
|
|
} else if (res != OK || (slot == BufferItem::INVALID_BUFFER_SLOT)) {
|
|
SP_LOGE("%s: dequeue buffer from output failed (%d)", __FUNCTION__, res);
|
|
}
|
|
}
|
|
|
|
void Camera3StreamSplitter::onAbandonedLocked() {
|
|
// If this is called from binderDied callback, it means the app process
|
|
// holding the binder has died. CameraService will be notified of the binder
|
|
// death, and camera device will be closed, which in turn calls
|
|
// disconnect().
|
|
//
|
|
// If this is called from onBufferReleasedByOutput or onFrameAvailable, one
|
|
// consumer being abanoned shouldn't impact the other consumer. So we won't
|
|
// stop the buffer flow.
|
|
//
|
|
// In both cases, we don't need to do anything here.
|
|
SP_LOGV("One of my outputs has abandoned me");
|
|
}
|
|
|
|
int Camera3StreamSplitter::getSlotForOutputLocked(const sp<IGraphicBufferProducer>& gbp,
|
|
const sp<GraphicBuffer>& gb) {
|
|
auto& outputSlots = *mOutputSlots[gbp];
|
|
|
|
for (size_t i = 0; i < outputSlots.size(); i++) {
|
|
if (outputSlots[i] == gb) {
|
|
return (int)i;
|
|
}
|
|
}
|
|
|
|
SP_LOGV("%s: Cannot find slot for gb %p on output %p", __FUNCTION__, gb.get(),
|
|
gbp.get());
|
|
return BufferItem::INVALID_BUFFER_SLOT;
|
|
}
|
|
|
|
Camera3StreamSplitter::OutputListener::OutputListener(
|
|
wp<Camera3StreamSplitter> splitter,
|
|
wp<IGraphicBufferProducer> output)
|
|
: mSplitter(splitter), mOutput(output) {}
|
|
|
|
void Camera3StreamSplitter::OutputListener::onBufferReleased() {
|
|
ATRACE_CALL();
|
|
sp<Camera3StreamSplitter> splitter = mSplitter.promote();
|
|
sp<IGraphicBufferProducer> output = mOutput.promote();
|
|
if (splitter != nullptr && output != nullptr) {
|
|
splitter->onBufferReleasedByOutput(output);
|
|
}
|
|
}
|
|
|
|
void Camera3StreamSplitter::OutputListener::binderDied(const wp<IBinder>& /* who */) {
|
|
sp<Camera3StreamSplitter> splitter = mSplitter.promote();
|
|
if (splitter != nullptr) {
|
|
Mutex::Autolock lock(splitter->mMutex);
|
|
splitter->onAbandonedLocked();
|
|
}
|
|
}
|
|
|
|
Camera3StreamSplitter::BufferTracker::BufferTracker(
|
|
const sp<GraphicBuffer>& buffer, const std::vector<size_t>& requestedSurfaces)
|
|
: mBuffer(buffer), mMergedFence(Fence::NO_FENCE), mRequestedSurfaces(requestedSurfaces),
|
|
mReferenceCount(requestedSurfaces.size()) {}
|
|
|
|
void Camera3StreamSplitter::BufferTracker::mergeFence(const sp<Fence>& with) {
|
|
mMergedFence = Fence::merge(String8("Camera3StreamSplitter"), mMergedFence, with);
|
|
}
|
|
|
|
size_t Camera3StreamSplitter::BufferTracker::decrementReferenceCountLocked(size_t surfaceId) {
|
|
const auto& it = std::find(mRequestedSurfaces.begin(), mRequestedSurfaces.end(), surfaceId);
|
|
if (it == mRequestedSurfaces.end()) {
|
|
return mReferenceCount;
|
|
} else {
|
|
mRequestedSurfaces.erase(it);
|
|
}
|
|
|
|
if (mReferenceCount > 0)
|
|
--mReferenceCount;
|
|
return mReferenceCount;
|
|
}
|
|
|
|
} // namespace android
|