blob: 9a3f7ed4a75f4e6f7d63629d91aff4ddb41cdd8b [file] [log] [blame]
/*
* Copyright (C) 2013-2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "Camera3-InputStream"
#define ATRACE_TAG ATRACE_TAG_CAMERA
//#define LOG_NDEBUG 0
#include <gui/BufferItem.h>
#include <utils/Log.h>
#include <utils/Trace.h>
#include "Camera3InputStream.h"
namespace android {
namespace camera3 {
const String8 Camera3InputStream::FAKE_ID;
Camera3InputStream::Camera3InputStream(int id,
uint32_t width, uint32_t height, int format) :
Camera3IOStreamBase(id, CAMERA_STREAM_INPUT, width, height, /*maxSize*/0,
format, HAL_DATASPACE_UNKNOWN, CAMERA_STREAM_ROTATION_0,
FAKE_ID,
std::unordered_set<int32_t>{ANDROID_SENSOR_PIXEL_MODE_DEFAULT}) {
if (format == HAL_PIXEL_FORMAT_BLOB) {
ALOGE("%s: Bad format, BLOB not supported", __FUNCTION__);
mState = STATE_ERROR;
}
}
Camera3InputStream::~Camera3InputStream() {
disconnectLocked();
}
status_t Camera3InputStream::getInputBufferLocked(
camera_stream_buffer *buffer, Size *size) {
ATRACE_CALL();
status_t res;
if (size == nullptr) {
ALOGE("%s: size must not be null", __FUNCTION__);
return BAD_VALUE;
}
// FIXME: will not work in (re-)registration
if (mState == STATE_IN_CONFIG || mState == STATE_IN_RECONFIG) {
ALOGE("%s: Stream %d: Buffer registration for input streams"
" not implemented (state %d)",
__FUNCTION__, mId, mState);
return INVALID_OPERATION;
}
if ((res = getBufferPreconditionCheckLocked()) != OK) {
return res;
}
ANativeWindowBuffer* anb;
int fenceFd;
assert(mConsumer != 0);
BufferItem bufferItem;
res = mConsumer->acquireBuffer(&bufferItem, /*waitForFence*/false);
if (res != OK) {
// This may or may not be an error condition depending on caller.
ALOGV("%s: Stream %d: Can't acquire next output buffer: %s (%d)",
__FUNCTION__, mId, strerror(-res), res);
return res;
}
size->width = bufferItem.mGraphicBuffer->getWidth();
size->height = bufferItem.mGraphicBuffer->getHeight();
anb = bufferItem.mGraphicBuffer->getNativeBuffer();
assert(anb != NULL);
fenceFd = bufferItem.mFence->dup();
/**
* FenceFD now owned by HAL except in case of error,
* in which case we reassign it to acquire_fence
*/
handoutBufferLocked(*buffer, &(anb->handle), /*acquireFence*/fenceFd,
/*releaseFence*/-1, CAMERA_BUFFER_STATUS_OK, /*output*/false);
mBuffersInFlight.push_back(bufferItem);
mFrameCount++;
mLastTimestamp = bufferItem.mTimestamp;
return OK;
}
status_t Camera3InputStream::returnBufferCheckedLocked(
const camera_stream_buffer &buffer,
nsecs_t timestamp,
nsecs_t readoutTimestamp,
bool output,
int32_t /*transform*/,
const std::vector<size_t>&,
/*out*/
sp<Fence> *releaseFenceOut) {
(void)timestamp;
(void)readoutTimestamp;
(void)output;
ALOG_ASSERT(!output, "Expected output to be false");
status_t res;
bool bufferFound = false;
BufferItem bufferItem;
{
// Find the buffer we are returning
Vector<BufferItem>::iterator it, end;
for (it = mBuffersInFlight.begin(), end = mBuffersInFlight.end();
it != end;
++it) {
const BufferItem& tmp = *it;
ANativeWindowBuffer *anb = tmp.mGraphicBuffer->getNativeBuffer();
if (anb != NULL && &(anb->handle) == buffer.buffer) {
bufferFound = true;
bufferItem = tmp;
mBuffersInFlight.erase(it);
break;
}
}
}
if (!bufferFound) {
ALOGE("%s: Stream %d: Can't return buffer that wasn't sent to HAL",
__FUNCTION__, mId);
return INVALID_OPERATION;
}
if (buffer.status == CAMERA_BUFFER_STATUS_ERROR) {
if (buffer.release_fence != -1) {
ALOGE("%s: Stream %d: HAL should not set release_fence(%d) when "
"there is an error", __FUNCTION__, mId, buffer.release_fence);
close(buffer.release_fence);
}
/**
* Reassign release fence as the acquire fence incase of error
*/
const_cast<camera_stream_buffer*>(&buffer)->release_fence =
buffer.acquire_fence;
}
/**
* Unconditionally return buffer to the buffer queue.
* - Fwk takes over the release_fence ownership
*/
sp<Fence> releaseFence = new Fence(buffer.release_fence);
res = mConsumer->releaseBuffer(bufferItem, releaseFence);
if (res != OK) {
ALOGE("%s: Stream %d: Error releasing buffer back to buffer queue:"
" %s (%d)", __FUNCTION__, mId, strerror(-res), res);
}
*releaseFenceOut = releaseFence;
return res;
}
status_t Camera3InputStream::returnInputBufferLocked(
const camera_stream_buffer &buffer) {
ATRACE_CALL();
return returnAnyBufferLocked(buffer, /*timestamp*/0, /*readoutTimestamp*/0,
/*output*/false, /*transform*/ -1);
}
status_t Camera3InputStream::getInputBufferProducerLocked(
sp<IGraphicBufferProducer> *producer) {
ATRACE_CALL();
if (producer == NULL) {
return BAD_VALUE;
} else if (mProducer == NULL) {
ALOGE("%s: No input stream is configured", __FUNCTION__);
return INVALID_OPERATION;
}
*producer = mProducer;
return OK;
}
status_t Camera3InputStream::disconnectLocked() {
status_t res;
if ((res = Camera3IOStreamBase::disconnectLocked()) != OK) {
return res;
}
assert(mBuffersInFlight.size() == 0);
mConsumer->abandon();
/**
* no-op since we can't disconnect the producer from the consumer-side
*/
mState = (mState == STATE_IN_RECONFIG) ? STATE_IN_CONFIG
: STATE_CONSTRUCTED;
return OK;
}
void Camera3InputStream::dump(int fd, const Vector<String16> &args) const {
(void) args;
String8 lines;
lines.appendFormat(" Stream[%d]: Input\n", mId);
write(fd, lines.string(), lines.size());
Camera3IOStreamBase::dump(fd, args);
}
status_t Camera3InputStream::configureQueueLocked() {
status_t res;
if ((res = Camera3IOStreamBase::configureQueueLocked()) != OK) {
return res;
}
assert(mMaxSize == 0);
assert(camera_stream::format != HAL_PIXEL_FORMAT_BLOB);
mHandoutTotalBufferCount = 0;
mFrameCount = 0;
mLastTimestamp = 0;
if (mConsumer.get() == 0) {
sp<IGraphicBufferProducer> producer;
sp<IGraphicBufferConsumer> consumer;
BufferQueue::createBufferQueue(&producer, &consumer);
int minUndequeuedBuffers = 0;
res = producer->query(NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &minUndequeuedBuffers);
if (res != OK || minUndequeuedBuffers < 0) {
ALOGE("%s: Stream %d: Could not query min undequeued buffers (error %d, bufCount %d)",
__FUNCTION__, mId, res, minUndequeuedBuffers);
return res;
}
size_t minBufs = static_cast<size_t>(minUndequeuedBuffers);
if (camera_stream::max_buffers == 0) {
ALOGE("%s: %d: HAL sets max_buffer to 0. Must be at least 1.",
__FUNCTION__, __LINE__);
return INVALID_OPERATION;
}
/*
* We promise never to 'acquire' more than camera_stream::max_buffers
* at any one time.
*
* Boost the number up to meet the minimum required buffer count.
*
* (Note that this sets consumer-side buffer count only,
* and not the sum of producer+consumer side as in other camera streams).
*/
mTotalBufferCount = camera_stream::max_buffers > minBufs ?
camera_stream::max_buffers : minBufs;
// TODO: somehow set the total buffer count when producer connects?
mConsumer = new BufferItemConsumer(consumer, mUsage,
mTotalBufferCount);
mConsumer->setName(String8::format("Camera3-InputStream-%d", mId));
mProducer = producer;
mConsumer->setBufferFreedListener(this);
}
res = mConsumer->setDefaultBufferSize(camera_stream::width,
camera_stream::height);
if (res != OK) {
ALOGE("%s: Stream %d: Could not set buffer dimensions %dx%d",
__FUNCTION__, mId, camera_stream::width, camera_stream::height);
return res;
}
res = mConsumer->setDefaultBufferFormat(camera_stream::format);
if (res != OK) {
ALOGE("%s: Stream %d: Could not set buffer format %d",
__FUNCTION__, mId, camera_stream::format);
return res;
}
return OK;
}
status_t Camera3InputStream::getEndpointUsage(uint64_t *usage) const {
// Per HAL3 spec, input streams have 0 for their initial usage field.
*usage = 0;
return OK;
}
void Camera3InputStream::onBufferFreed(const wp<GraphicBuffer>& gb) {
const sp<GraphicBuffer> buffer = gb.promote();
if (buffer != nullptr) {
camera_stream_buffer streamBuffer =
{nullptr, &buffer->handle, CAMERA_BUFFER_STATUS_OK, -1, -1};
// Check if this buffer is outstanding.
if (isOutstandingBuffer(streamBuffer)) {
ALOGV("%s: Stream %d: Trying to free a buffer that is still being "
"processed.", __FUNCTION__, mId);
return;
}
sp<Camera3StreamBufferFreedListener> callback = mBufferFreedListener.promote();
if (callback != nullptr) {
callback->onBufferFreed(mId, buffer->handle);
}
} else {
ALOGE("%s: GraphicBuffer is freed before onBufferFreed callback finishes!", __FUNCTION__);
}
}
}; // namespace camera3
}; // namespace android