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329 lines
10 KiB
329 lines
10 KiB
/*
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* Copyright (C) 2013-2018 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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*/
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#define LOG_TAG "Camera3-InputStream"
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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 <utils/Log.h>
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#include <utils/Trace.h>
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#include "Camera3InputStream.h"
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namespace android {
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namespace camera3 {
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const String8 Camera3InputStream::FAKE_ID;
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Camera3InputStream::Camera3InputStream(int id,
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uint32_t width, uint32_t height, int format) :
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Camera3IOStreamBase(id, CAMERA_STREAM_INPUT, width, height, /*maxSize*/0,
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format, HAL_DATASPACE_UNKNOWN, CAMERA_STREAM_ROTATION_0,
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FAKE_ID,
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std::unordered_set<int32_t>{ANDROID_SENSOR_PIXEL_MODE_DEFAULT}) {
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if (format == HAL_PIXEL_FORMAT_BLOB) {
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ALOGE("%s: Bad format, BLOB not supported", __FUNCTION__);
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mState = STATE_ERROR;
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}
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}
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Camera3InputStream::~Camera3InputStream() {
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disconnectLocked();
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}
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status_t Camera3InputStream::getInputBufferLocked(
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camera_stream_buffer *buffer, Size *size) {
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ATRACE_CALL();
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status_t res;
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if (size == nullptr) {
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ALOGE("%s: size must not be null", __FUNCTION__);
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return BAD_VALUE;
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}
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// FIXME: will not work in (re-)registration
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if (mState == STATE_IN_CONFIG || mState == STATE_IN_RECONFIG) {
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ALOGE("%s: Stream %d: Buffer registration for input streams"
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" not implemented (state %d)",
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__FUNCTION__, mId, mState);
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return INVALID_OPERATION;
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}
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if ((res = getBufferPreconditionCheckLocked()) != OK) {
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return res;
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}
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ANativeWindowBuffer* anb;
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int fenceFd;
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assert(mConsumer != 0);
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BufferItem bufferItem;
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res = mConsumer->acquireBuffer(&bufferItem, /*waitForFence*/false);
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if (res != OK) {
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// This may or may not be an error condition depending on caller.
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ALOGV("%s: Stream %d: Can't acquire next output buffer: %s (%d)",
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__FUNCTION__, mId, strerror(-res), res);
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return res;
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}
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size->width = bufferItem.mGraphicBuffer->getWidth();
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size->height = bufferItem.mGraphicBuffer->getHeight();
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anb = bufferItem.mGraphicBuffer->getNativeBuffer();
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assert(anb != NULL);
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fenceFd = bufferItem.mFence->dup();
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/**
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* FenceFD now owned by HAL except in case of error,
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* in which case we reassign it to acquire_fence
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*/
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handoutBufferLocked(*buffer, &(anb->handle), /*acquireFence*/fenceFd,
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/*releaseFence*/-1, CAMERA_BUFFER_STATUS_OK, /*output*/false);
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mBuffersInFlight.push_back(bufferItem);
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mFrameCount++;
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mLastTimestamp = bufferItem.mTimestamp;
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return OK;
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}
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status_t Camera3InputStream::returnBufferCheckedLocked(
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const camera_stream_buffer &buffer,
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nsecs_t timestamp,
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bool output,
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const std::vector<size_t>&,
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/*out*/
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sp<Fence> *releaseFenceOut) {
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(void)timestamp;
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(void)output;
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ALOG_ASSERT(!output, "Expected output to be false");
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status_t res;
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bool bufferFound = false;
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BufferItem bufferItem;
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{
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// Find the buffer we are returning
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Vector<BufferItem>::iterator it, end;
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for (it = mBuffersInFlight.begin(), end = mBuffersInFlight.end();
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it != end;
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++it) {
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const BufferItem& tmp = *it;
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ANativeWindowBuffer *anb = tmp.mGraphicBuffer->getNativeBuffer();
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if (anb != NULL && &(anb->handle) == buffer.buffer) {
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bufferFound = true;
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bufferItem = tmp;
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mBuffersInFlight.erase(it);
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break;
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}
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}
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}
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if (!bufferFound) {
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ALOGE("%s: Stream %d: Can't return buffer that wasn't sent to HAL",
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__FUNCTION__, mId);
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return INVALID_OPERATION;
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}
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if (buffer.status == CAMERA_BUFFER_STATUS_ERROR) {
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if (buffer.release_fence != -1) {
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ALOGE("%s: Stream %d: HAL should not set release_fence(%d) when "
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"there is an error", __FUNCTION__, mId, buffer.release_fence);
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close(buffer.release_fence);
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}
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/**
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* Reassign release fence as the acquire fence incase of error
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*/
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const_cast<camera_stream_buffer*>(&buffer)->release_fence =
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buffer.acquire_fence;
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}
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/**
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* Unconditionally return buffer to the buffer queue.
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* - Fwk takes over the release_fence ownership
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*/
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sp<Fence> releaseFence = new Fence(buffer.release_fence);
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res = mConsumer->releaseBuffer(bufferItem, releaseFence);
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if (res != OK) {
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ALOGE("%s: Stream %d: Error releasing buffer back to buffer queue:"
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" %s (%d)", __FUNCTION__, mId, strerror(-res), res);
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}
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*releaseFenceOut = releaseFence;
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return res;
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}
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status_t Camera3InputStream::returnInputBufferLocked(
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const camera_stream_buffer &buffer) {
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ATRACE_CALL();
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return returnAnyBufferLocked(buffer, /*timestamp*/0, /*output*/false);
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}
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status_t Camera3InputStream::getInputBufferProducerLocked(
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sp<IGraphicBufferProducer> *producer) {
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ATRACE_CALL();
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if (producer == NULL) {
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return BAD_VALUE;
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} else if (mProducer == NULL) {
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ALOGE("%s: No input stream is configured", __FUNCTION__);
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return INVALID_OPERATION;
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}
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*producer = mProducer;
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return OK;
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}
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status_t Camera3InputStream::disconnectLocked() {
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status_t res;
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if ((res = Camera3IOStreamBase::disconnectLocked()) != OK) {
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return res;
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}
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assert(mBuffersInFlight.size() == 0);
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mConsumer->abandon();
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/**
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* no-op since we can't disconnect the producer from the consumer-side
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*/
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mState = (mState == STATE_IN_RECONFIG) ? STATE_IN_CONFIG
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: STATE_CONSTRUCTED;
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return OK;
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}
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void Camera3InputStream::dump(int fd, const Vector<String16> &args) const {
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(void) args;
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String8 lines;
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lines.appendFormat(" Stream[%d]: Input\n", mId);
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write(fd, lines.string(), lines.size());
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Camera3IOStreamBase::dump(fd, args);
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}
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status_t Camera3InputStream::configureQueueLocked() {
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status_t res;
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if ((res = Camera3IOStreamBase::configureQueueLocked()) != OK) {
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return res;
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}
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assert(mMaxSize == 0);
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assert(camera_stream::format != HAL_PIXEL_FORMAT_BLOB);
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mHandoutTotalBufferCount = 0;
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mFrameCount = 0;
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mLastTimestamp = 0;
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if (mConsumer.get() == 0) {
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sp<IGraphicBufferProducer> producer;
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sp<IGraphicBufferConsumer> consumer;
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BufferQueue::createBufferQueue(&producer, &consumer);
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int minUndequeuedBuffers = 0;
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res = producer->query(NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &minUndequeuedBuffers);
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if (res != OK || minUndequeuedBuffers < 0) {
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ALOGE("%s: Stream %d: Could not query min undequeued buffers (error %d, bufCount %d)",
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__FUNCTION__, mId, res, minUndequeuedBuffers);
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return res;
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}
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size_t minBufs = static_cast<size_t>(minUndequeuedBuffers);
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if (camera_stream::max_buffers == 0) {
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ALOGE("%s: %d: HAL sets max_buffer to 0. Must be at least 1.",
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__FUNCTION__, __LINE__);
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return INVALID_OPERATION;
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}
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/*
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* We promise never to 'acquire' more than camera_stream::max_buffers
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* at any one time.
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*
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* Boost the number up to meet the minimum required buffer count.
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*
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* (Note that this sets consumer-side buffer count only,
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* and not the sum of producer+consumer side as in other camera streams).
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*/
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mTotalBufferCount = camera_stream::max_buffers > minBufs ?
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camera_stream::max_buffers : minBufs;
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// TODO: somehow set the total buffer count when producer connects?
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mConsumer = new BufferItemConsumer(consumer, mUsage,
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mTotalBufferCount);
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mConsumer->setName(String8::format("Camera3-InputStream-%d", mId));
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mProducer = producer;
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mConsumer->setBufferFreedListener(this);
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}
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res = mConsumer->setDefaultBufferSize(camera_stream::width,
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camera_stream::height);
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if (res != OK) {
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ALOGE("%s: Stream %d: Could not set buffer dimensions %dx%d",
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__FUNCTION__, mId, camera_stream::width, camera_stream::height);
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return res;
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}
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res = mConsumer->setDefaultBufferFormat(camera_stream::format);
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if (res != OK) {
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ALOGE("%s: Stream %d: Could not set buffer format %d",
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__FUNCTION__, mId, camera_stream::format);
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return res;
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}
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return OK;
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}
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status_t Camera3InputStream::getEndpointUsage(uint64_t *usage) const {
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// Per HAL3 spec, input streams have 0 for their initial usage field.
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*usage = 0;
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return OK;
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}
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void Camera3InputStream::onBufferFreed(const wp<GraphicBuffer>& gb) {
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const sp<GraphicBuffer> buffer = gb.promote();
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if (buffer != nullptr) {
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camera_stream_buffer streamBuffer =
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{nullptr, &buffer->handle, CAMERA_BUFFER_STATUS_OK, -1, -1};
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// Check if this buffer is outstanding.
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if (isOutstandingBuffer(streamBuffer)) {
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ALOGV("%s: Stream %d: Trying to free a buffer that is still being "
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"processed.", __FUNCTION__, mId);
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return;
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}
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sp<Camera3StreamBufferFreedListener> callback = mBufferFreedListener.promote();
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if (callback != nullptr) {
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callback->onBufferFreed(mId, buffer->handle);
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}
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} else {
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ALOGE("%s: GraphicBuffer is freed before onBufferFreed callback finishes!", __FUNCTION__);
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}
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}
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}; // namespace camera3
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}; // namespace android
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