blob: bd62fa19893f27645e3ef5b336e0f3bd3b0645fe [file] [log] [blame]
/*
* Copyright (C) 2012 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 "Camera2Device"
//#define LOG_NDEBUG 0
#include <utils/Log.h>
#include "Camera2Device.h"
namespace android {
Camera2Device::Camera2Device(int id):
mId(id),
mDevice(NULL)
{
ALOGV("%s: E", __FUNCTION__);
}
Camera2Device::~Camera2Device()
{
ALOGV("%s: E", __FUNCTION__);
if (mDevice) {
status_t res;
res = mDevice->common.close(&mDevice->common);
if (res != OK) {
ALOGE("%s: Could not close camera %d: %s (%d)",
__FUNCTION__,
mId, strerror(-res), res);
}
mDevice = NULL;
}
}
status_t Camera2Device::initialize(camera_module_t *module)
{
ALOGV("%s: E", __FUNCTION__);
status_t res;
char name[10];
snprintf(name, sizeof(name), "%d", mId);
res = module->common.methods->open(&module->common, name,
reinterpret_cast<hw_device_t**>(&mDevice));
if (res != OK) {
ALOGE("%s: Could not open camera %d: %s (%d)", __FUNCTION__,
mId, strerror(-res), res);
return res;
}
if (mDevice->common.version != CAMERA_DEVICE_API_VERSION_2_0) {
ALOGE("%s: Could not open camera %d: "
"Camera device is not version %x, reports %x instead",
__FUNCTION__, mId, CAMERA_DEVICE_API_VERSION_2_0,
mDevice->common.version);
return BAD_VALUE;
}
camera_info info;
res = module->get_camera_info(mId, &info);
if (res != OK ) return res;
if (info.device_version != mDevice->common.version) {
ALOGE("%s: HAL reporting mismatched camera_info version (%x)"
" and device version (%x).", __FUNCTION__,
mDevice->common.version, info.device_version);
return BAD_VALUE;
}
mDeviceInfo = info.static_camera_characteristics;
res = mRequestQueue.setConsumerDevice(mDevice);
if (res != OK) {
ALOGE("%s: Camera %d: Unable to connect request queue to device: %s (%d)",
__FUNCTION__, mId, strerror(-res), res);
return res;
}
res = mFrameQueue.setProducerDevice(mDevice);
if (res != OK) {
ALOGE("%s: Camera %d: Unable to connect frame queue to device: %s (%d)",
__FUNCTION__, mId, strerror(-res), res);
return res;
}
res = mDevice->ops->get_metadata_vendor_tag_ops(mDevice, &mVendorTagOps);
if (res != OK ) {
ALOGE("%s: Camera %d: Unable to retrieve tag ops from device: %s (%d)",
__FUNCTION__, mId, strerror(-res), res);
return res;
}
return OK;
}
camera_metadata_t *Camera2Device::info() {
ALOGV("%s: E", __FUNCTION__);
return mDeviceInfo;
}
status_t Camera2Device::setStreamingRequest(camera_metadata_t* request)
{
ALOGV("%s: E", __FUNCTION__);
mRequestQueue.setStreamSlot(request);
return OK;
}
status_t Camera2Device::createStream(sp<ANativeWindow> consumer,
uint32_t width, uint32_t height, int format, int *id) {
status_t res;
ALOGV("%s: E", __FUNCTION__);
sp<StreamAdapter> stream = new StreamAdapter(mDevice);
res = stream->connectToDevice(consumer, width, height, format);
if (res != OK) {
ALOGE("%s: Camera %d: Unable to create stream (%d x %d, format %x):"
"%s (%d)",
__FUNCTION__, mId, width, height, format, strerror(-res), res);
return res;
}
*id = stream->getId();
mStreams.push_back(stream);
return OK;
}
status_t Camera2Device::deleteStream(int id) {
ALOGV("%s: E", __FUNCTION__);
bool found = false;
for (StreamList::iterator streamI = mStreams.begin();
streamI != mStreams.end(); streamI++) {
if ((*streamI)->getId() == id) {
mStreams.erase(streamI);
found = true;
break;
}
}
if (!found) {
ALOGE("%s: Camera %d: Unable to find stream %d to delete",
__FUNCTION__, mId, id);
return BAD_VALUE;
}
return OK;
}
status_t Camera2Device::createDefaultRequest(int templateId,
camera_metadata_t **request) {
ALOGV("%s: E", __FUNCTION__);
return mDevice->ops->construct_default_request(mDevice, templateId, request);
}
/**
* Camera2Device::MetadataQueue
*/
Camera2Device::MetadataQueue::MetadataQueue():
mDevice(NULL),
mFrameCount(0),
mCount(0),
mStreamSlotCount(0),
mSignalConsumer(true)
{
camera2_request_queue_src_ops::dequeue_request = consumer_dequeue;
camera2_request_queue_src_ops::request_count = consumer_buffer_count;
camera2_request_queue_src_ops::free_request = consumer_free;
camera2_frame_queue_dst_ops::dequeue_frame = producer_dequeue;
camera2_frame_queue_dst_ops::cancel_frame = producer_cancel;
camera2_frame_queue_dst_ops::enqueue_frame = producer_enqueue;
}
Camera2Device::MetadataQueue::~MetadataQueue() {
Mutex::Autolock l(mMutex);
freeBuffers(mEntries.begin(), mEntries.end());
freeBuffers(mStreamSlot.begin(), mStreamSlot.end());
}
// Connect to camera2 HAL as consumer (input requests/reprocessing)
status_t Camera2Device::MetadataQueue::setConsumerDevice(camera2_device_t *d) {
status_t res;
res = d->ops->set_request_queue_src_ops(d,
this);
if (res != OK) return res;
mDevice = d;
return OK;
}
status_t Camera2Device::MetadataQueue::setProducerDevice(camera2_device_t *d) {
status_t res;
res = d->ops->set_frame_queue_dst_ops(d,
this);
return res;
}
// Real interfaces
status_t Camera2Device::MetadataQueue::enqueue(camera_metadata_t *buf) {
ALOGV("%s: E", __FUNCTION__);
Mutex::Autolock l(mMutex);
mCount++;
mEntries.push_back(buf);
return signalConsumerLocked();
}
int Camera2Device::MetadataQueue::getBufferCount() {
Mutex::Autolock l(mMutex);
if (mStreamSlotCount > 0) {
return CAMERA2_REQUEST_QUEUE_IS_BOTTOMLESS;
}
return mCount;
}
status_t Camera2Device::MetadataQueue::dequeue(camera_metadata_t **buf,
bool incrementCount)
{
ALOGV("%s: E", __FUNCTION__);
status_t res;
Mutex::Autolock l(mMutex);
if (mCount == 0) {
if (mStreamSlotCount == 0) {
ALOGV("%s: Empty", __FUNCTION__);
*buf = NULL;
mSignalConsumer = true;
return OK;
}
ALOGV("%s: Streaming %d frames to queue", __FUNCTION__,
mStreamSlotCount);
for (List<camera_metadata_t*>::iterator slotEntry = mStreamSlot.begin();
slotEntry != mStreamSlot.end();
slotEntry++ ) {
size_t entries = get_camera_metadata_entry_count(*slotEntry);
size_t dataBytes = get_camera_metadata_data_count(*slotEntry);
camera_metadata_t *copy =
allocate_camera_metadata(entries, dataBytes);
append_camera_metadata(copy, *slotEntry);
mEntries.push_back(copy);
}
mCount = mStreamSlotCount;
}
ALOGV("MetadataQueue: deque (%d buffers)", mCount);
camera_metadata_t *b = *(mEntries.begin());
mEntries.erase(mEntries.begin());
if (incrementCount) {
camera_metadata_entry_t frameCount;
res = find_camera_metadata_entry(b,
ANDROID_REQUEST_FRAME_COUNT,
&frameCount);
if (res != OK) {
ALOGE("%s: Unable to add frame count: %s (%d)",
__FUNCTION__, strerror(-res), res);
} else {
*frameCount.data.i32 = mFrameCount;
}
mFrameCount++;
}
*buf = b;
mCount--;
return OK;
}
status_t Camera2Device::MetadataQueue::waitForBuffer(nsecs_t timeout)
{
Mutex::Autolock l(mMutex);
status_t res;
while (mCount == 0) {
res = notEmpty.waitRelative(mMutex,timeout);
if (res != OK) return res;
}
return OK;
}
status_t Camera2Device::MetadataQueue::setStreamSlot(camera_metadata_t *buf)
{
ALOGV("%s: E", __FUNCTION__);
Mutex::Autolock l(mMutex);
if (buf == NULL) {
freeBuffers(mStreamSlot.begin(), mStreamSlot.end());
mStreamSlotCount = 0;
return OK;
}
if (mStreamSlotCount > 1) {
List<camera_metadata_t*>::iterator deleter = ++mStreamSlot.begin();
freeBuffers(++mStreamSlot.begin(), mStreamSlot.end());
mStreamSlotCount = 1;
}
if (mStreamSlotCount == 1) {
free_camera_metadata( *(mStreamSlot.begin()) );
*(mStreamSlot.begin()) = buf;
} else {
mStreamSlot.push_front(buf);
mStreamSlotCount = 1;
}
return signalConsumerLocked();
}
status_t Camera2Device::MetadataQueue::setStreamSlot(
const List<camera_metadata_t*> &bufs)
{
ALOGV("%s: E", __FUNCTION__);
Mutex::Autolock l(mMutex);
if (mStreamSlotCount > 0) {
freeBuffers(mStreamSlot.begin(), mStreamSlot.end());
}
mStreamSlot = bufs;
mStreamSlotCount = mStreamSlot.size();
return signalConsumerLocked();
}
status_t Camera2Device::MetadataQueue::signalConsumerLocked() {
status_t res = OK;
notEmpty.signal();
if (mSignalConsumer && mDevice != NULL) {
mSignalConsumer = false;
mMutex.unlock();
ALOGV("%s: Signaling consumer", __FUNCTION__);
res = mDevice->ops->notify_request_queue_not_empty(mDevice);
mMutex.lock();
}
return res;
}
status_t Camera2Device::MetadataQueue::freeBuffers(
List<camera_metadata_t*>::iterator start,
List<camera_metadata_t*>::iterator end)
{
while (start != end) {
free_camera_metadata(*start);
start = mStreamSlot.erase(start);
}
return OK;
}
Camera2Device::MetadataQueue* Camera2Device::MetadataQueue::getInstance(
const camera2_request_queue_src_ops_t *q)
{
const MetadataQueue* cmq = static_cast<const MetadataQueue*>(q);
return const_cast<MetadataQueue*>(cmq);
}
Camera2Device::MetadataQueue* Camera2Device::MetadataQueue::getInstance(
const camera2_frame_queue_dst_ops_t *q)
{
const MetadataQueue* cmq = static_cast<const MetadataQueue*>(q);
return const_cast<MetadataQueue*>(cmq);
}
int Camera2Device::MetadataQueue::consumer_buffer_count(
const camera2_request_queue_src_ops_t *q)
{
MetadataQueue *queue = getInstance(q);
return queue->getBufferCount();
}
int Camera2Device::MetadataQueue::consumer_dequeue(
const camera2_request_queue_src_ops_t *q,
camera_metadata_t **buffer)
{
MetadataQueue *queue = getInstance(q);
return queue->dequeue(buffer, true);
}
int Camera2Device::MetadataQueue::consumer_free(
const camera2_request_queue_src_ops_t *q,
camera_metadata_t *old_buffer)
{
MetadataQueue *queue = getInstance(q);
free_camera_metadata(old_buffer);
return OK;
}
int Camera2Device::MetadataQueue::producer_dequeue(
const camera2_frame_queue_dst_ops_t *q,
size_t entries, size_t bytes,
camera_metadata_t **buffer)
{
camera_metadata_t *new_buffer =
allocate_camera_metadata(entries, bytes);
if (new_buffer == NULL) return NO_MEMORY;
*buffer = new_buffer;
return OK;
}
int Camera2Device::MetadataQueue::producer_cancel(
const camera2_frame_queue_dst_ops_t *q,
camera_metadata_t *old_buffer)
{
free_camera_metadata(old_buffer);
return OK;
}
int Camera2Device::MetadataQueue::producer_enqueue(
const camera2_frame_queue_dst_ops_t *q,
camera_metadata_t *filled_buffer)
{
MetadataQueue *queue = getInstance(q);
return queue->enqueue(filled_buffer);
}
/**
* Camera2Device::StreamAdapter
*/
#ifndef container_of
#define container_of(ptr, type, member) \
(type *)((char*)(ptr) - offsetof(type, member))
#endif
Camera2Device::StreamAdapter::StreamAdapter(camera2_device_t *d):
mState(DISCONNECTED),
mDevice(d),
mId(-1),
mWidth(0), mHeight(0), mFormatRequested(0)
{
camera2_stream_ops::dequeue_buffer = dequeue_buffer;
camera2_stream_ops::enqueue_buffer = enqueue_buffer;
camera2_stream_ops::cancel_buffer = cancel_buffer;
camera2_stream_ops::set_crop = set_crop;
}
Camera2Device::StreamAdapter::~StreamAdapter() {
disconnect();
}
status_t Camera2Device::StreamAdapter::connectToDevice(sp<ANativeWindow> consumer,
uint32_t width, uint32_t height, int format) {
status_t res;
if (mState != DISCONNECTED) return INVALID_OPERATION;
if (consumer == NULL) {
ALOGE("%s: Null consumer passed to stream adapter", __FUNCTION__);
return BAD_VALUE;
}
mConsumerInterface = consumer;
mWidth = width;
mHeight = height;
mFormatRequested = format;
// Allocate device-side stream interface
uint32_t id;
uint32_t formatActual;
uint32_t usage;
uint32_t maxBuffers = 2;
res = mDevice->ops->allocate_stream(mDevice,
mWidth, mHeight, mFormatRequested, getStreamOps(),
&id, &formatActual, &usage, &maxBuffers);
if (res != OK) {
ALOGE("%s: Device stream allocation failed: %s (%d)",
__FUNCTION__, strerror(-res), res);
return res;
}
mId = id;
mFormat = formatActual;
mUsage = usage;
mMaxProducerBuffers = maxBuffers;
mState = ALLOCATED;
// Configure consumer-side ANativeWindow interface
res = native_window_api_connect(mConsumerInterface.get(),
NATIVE_WINDOW_API_CAMERA);
if (res != OK) {
ALOGE("%s: Unable to connect to native window for stream %d",
__FUNCTION__, mId);
return res;
}
mState = CONNECTED;
res = native_window_set_usage(mConsumerInterface.get(), mUsage);
if (res != OK) {
ALOGE("%s: Unable to configure usage %08x for stream %d",
__FUNCTION__, mUsage, mId);
return res;
}
res = native_window_set_buffers_geometry(mConsumerInterface.get(),
mWidth, mHeight, mFormat);
if (res != OK) {
ALOGE("%s: Unable to configure buffer geometry"
" %d x %d, format 0x%x for stream %d",
__FUNCTION__, mWidth, mHeight, mFormat, mId);
return res;
}
int maxConsumerBuffers;
res = mConsumerInterface->query(mConsumerInterface.get(),
NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &maxConsumerBuffers);
if (res != OK) {
ALOGE("%s: Unable to query consumer undequeued"
" buffer count for stream %d", __FUNCTION__, mId);
return res;
}
mMaxConsumerBuffers = maxConsumerBuffers;
ALOGV("%s: Producer wants %d buffers, consumer wants %d", __FUNCTION__,
mMaxProducerBuffers, mMaxConsumerBuffers);
int totalBuffers = mMaxConsumerBuffers + mMaxProducerBuffers;
res = native_window_set_buffer_count(mConsumerInterface.get(),
totalBuffers);
if (res != OK) {
ALOGE("%s: Unable to set buffer count for stream %d",
__FUNCTION__, mId);
return res;
}
// Register allocated buffers with HAL device
buffer_handle_t *buffers = new buffer_handle_t[totalBuffers];
ANativeWindowBuffer **anwBuffers = new ANativeWindowBuffer*[totalBuffers];
int bufferIdx = 0;
for (; bufferIdx < totalBuffers; bufferIdx++) {
res = mConsumerInterface->dequeueBuffer(mConsumerInterface.get(),
&anwBuffers[bufferIdx]);
if (res != OK) {
ALOGE("%s: Unable to dequeue buffer %d for initial registration for"
"stream %d", __FUNCTION__, bufferIdx, mId);
goto cleanUpBuffers;
}
res = mConsumerInterface->lockBuffer(mConsumerInterface.get(),
anwBuffers[bufferIdx]);
if (res != OK) {
ALOGE("%s: Unable to lock buffer %d for initial registration for"
"stream %d", __FUNCTION__, bufferIdx, mId);
bufferIdx++;
goto cleanUpBuffers;
}
buffers[bufferIdx] = anwBuffers[bufferIdx]->handle;
}
res = mDevice->ops->register_stream_buffers(mDevice,
mId,
totalBuffers,
buffers);
if (res != OK) {
ALOGE("%s: Unable to register buffers with HAL device for stream %d",
__FUNCTION__, mId);
} else {
mState = ACTIVE;
}
cleanUpBuffers:
for (int i = 0; i < bufferIdx; i++) {
res = mConsumerInterface->cancelBuffer(mConsumerInterface.get(),
anwBuffers[i]);
if (res != OK) {
ALOGE("%s: Unable to cancel buffer %d after registration",
__FUNCTION__, i);
}
}
delete anwBuffers;
delete buffers;
return res;
}
status_t Camera2Device::StreamAdapter::disconnect() {
status_t res;
if (mState >= ALLOCATED) {
res = mDevice->ops->release_stream(mDevice, mId);
if (res != OK) {
ALOGE("%s: Unable to release stream %d",
__FUNCTION__, mId);
return res;
}
}
if (mState >= CONNECTED) {
res = native_window_api_disconnect(mConsumerInterface.get(),
NATIVE_WINDOW_API_CAMERA);
if (res != OK) {
ALOGE("%s: Unable to disconnect stream %d from native window",
__FUNCTION__, mId);
return res;
}
}
mId = -1;
mState = DISCONNECTED;
return OK;
}
int Camera2Device::StreamAdapter::getId() {
return mId;
}
const camera2_stream_ops *Camera2Device::StreamAdapter::getStreamOps() {
return static_cast<camera2_stream_ops *>(this);
}
ANativeWindow* Camera2Device::StreamAdapter::toANW(
const camera2_stream_ops_t *w) {
return static_cast<const StreamAdapter*>(w)->mConsumerInterface.get();
}
int Camera2Device::StreamAdapter::dequeue_buffer(const camera2_stream_ops_t *w,
buffer_handle_t** buffer) {
int res;
int state = static_cast<const StreamAdapter*>(w)->mState;
if (state != ACTIVE) {
ALOGE("%s: Called when in bad state: %d", __FUNCTION__, state);
return INVALID_OPERATION;
}
ANativeWindow *a = toANW(w);
ANativeWindowBuffer* anb;
res = a->dequeueBuffer(a, &anb);
if (res != OK) return res;
res = a->lockBuffer(a, anb);
if (res != OK) return res;
*buffer = &(anb->handle);
ALOGV("%s: Buffer %p", __FUNCTION__, *buffer);
return res;
}
int Camera2Device::StreamAdapter::enqueue_buffer(const camera2_stream_ops_t* w,
int64_t timestamp,
buffer_handle_t* buffer) {
ALOGV("%s: Buffer %p captured at %lld ns", __FUNCTION__, buffer, timestamp);
int state = static_cast<const StreamAdapter*>(w)->mState;
if (state != ACTIVE) {
ALOGE("%s: Called when in bad state: %d", __FUNCTION__, state);
return INVALID_OPERATION;
}
ANativeWindow *a = toANW(w);
status_t err;
err = native_window_set_buffers_timestamp(a, timestamp);
if (err != OK) return err;
return a->queueBuffer(a,
container_of(buffer, ANativeWindowBuffer, handle));
}
int Camera2Device::StreamAdapter::cancel_buffer(const camera2_stream_ops_t* w,
buffer_handle_t* buffer) {
int state = static_cast<const StreamAdapter*>(w)->mState;
if (state != ACTIVE) {
ALOGE("%s: Called when in bad state: %d", __FUNCTION__, state);
return INVALID_OPERATION;
}
ANativeWindow *a = toANW(w);
return a->cancelBuffer(a,
container_of(buffer, ANativeWindowBuffer, handle));
}
int Camera2Device::StreamAdapter::set_crop(const camera2_stream_ops_t* w,
int left, int top, int right, int bottom) {
int state = static_cast<const StreamAdapter*>(w)->mState;
if (state != ACTIVE) {
ALOGE("%s: Called when in bad state: %d", __FUNCTION__, state);
return INVALID_OPERATION;
}
ANativeWindow *a = toANW(w);
android_native_rect_t crop = { left, top, right, bottom };
return native_window_set_crop(a, &crop);
}
}; // namespace android