diff options
Diffstat (limited to 'services/camera/libcameraservice/device3/Camera3OutputStream.cpp')
| -rw-r--r-- | services/camera/libcameraservice/device3/Camera3OutputStream.cpp | 394 |
1 files changed, 394 insertions, 0 deletions
diff --git a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp new file mode 100644 index 0000000..682755d --- /dev/null +++ b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp @@ -0,0 +1,394 @@ +/* + * Copyright (C) 2013 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-OutputStream" +#define ATRACE_TAG ATRACE_TAG_CAMERA +//#define LOG_NDEBUG 0 + +#include <utils/Log.h> +#include <utils/Trace.h> +#include "Camera3OutputStream.h" + +#ifndef container_of +#define container_of(ptr, type, member) \ + (type *)((char*)(ptr) - offsetof(type, member)) +#endif + +namespace android { + +namespace camera3 { + +Camera3OutputStream::Camera3OutputStream(int id, + sp<ANativeWindow> consumer, + uint32_t width, uint32_t height, int format) : + Camera3IOStreamBase(id, CAMERA3_STREAM_OUTPUT, width, height, + /*maxSize*/0, format), + mConsumer(consumer), + mTransform(0) { + + if (mConsumer == NULL) { + ALOGE("%s: Consumer is NULL!", __FUNCTION__); + mState = STATE_ERROR; + } +} + +Camera3OutputStream::Camera3OutputStream(int id, + sp<ANativeWindow> consumer, + uint32_t width, uint32_t height, size_t maxSize, int format) : + Camera3IOStreamBase(id, CAMERA3_STREAM_OUTPUT, width, height, maxSize, + format), + mConsumer(consumer), + mTransform(0) { + + if (format != HAL_PIXEL_FORMAT_BLOB) { + ALOGE("%s: Bad format for size-only stream: %d", __FUNCTION__, + format); + mState = STATE_ERROR; + } + + if (mConsumer == NULL) { + ALOGE("%s: Consumer is NULL!", __FUNCTION__); + mState = STATE_ERROR; + } +} + +Camera3OutputStream::Camera3OutputStream(int id, camera3_stream_type_t type, + uint32_t width, uint32_t height, + int format) : + Camera3IOStreamBase(id, type, width, height, + /*maxSize*/0, + format), + mTransform(0) { + + // Subclasses expected to initialize mConsumer themselves +} + + +Camera3OutputStream::~Camera3OutputStream() { + disconnectLocked(); +} + +status_t Camera3OutputStream::getBufferLocked(camera3_stream_buffer *buffer) { + ATRACE_CALL(); + status_t res; + + if ((res = getBufferPreconditionCheckLocked()) != OK) { + return res; + } + + ANativeWindowBuffer* anb; + int fenceFd; + + /** + * Release the lock briefly to avoid deadlock for below scenario: + * Thread 1: StreamingProcessor::startStream -> Camera3Stream::isConfiguring(). + * This thread acquired StreamingProcessor lock and try to lock Camera3Stream lock. + * Thread 2: Camera3Stream::returnBuffer->StreamingProcessor::onFrameAvailable(). + * This thread acquired Camera3Stream lock and bufferQueue lock, and try to lock + * StreamingProcessor lock. + * Thread 3: Camera3Stream::getBuffer(). This thread acquired Camera3Stream lock + * and try to lock bufferQueue lock. + * Then there is circular locking dependency. + */ + sp<ANativeWindow> currentConsumer = mConsumer; + mLock.unlock(); + + res = currentConsumer->dequeueBuffer(currentConsumer.get(), &anb, &fenceFd); + mLock.lock(); + if (res != OK) { + ALOGE("%s: Stream %d: Can't dequeue next output buffer: %s (%d)", + __FUNCTION__, mId, strerror(-res), res); + return res; + } + + /** + * 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, CAMERA3_BUFFER_STATUS_OK); + + return OK; +} + +status_t Camera3OutputStream::returnBufferLocked( + const camera3_stream_buffer &buffer, + nsecs_t timestamp) { + ATRACE_CALL(); + + status_t res = returnAnyBufferLocked(buffer, timestamp, /*output*/true); + + if (res != OK) { + return res; + } + + mLastTimestamp = timestamp; + + return OK; +} + +status_t Camera3OutputStream::returnBufferCheckedLocked( + const camera3_stream_buffer &buffer, + nsecs_t timestamp, + bool output, + /*out*/ + sp<Fence> *releaseFenceOut) { + + (void)output; + ALOG_ASSERT(output, "Expected output to be true"); + + status_t res; + sp<Fence> releaseFence; + + /** + * Fence management - calculate Release Fence + */ + if (buffer.status == CAMERA3_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 in case of error + */ + releaseFence = new Fence(buffer.acquire_fence); + } else { + res = native_window_set_buffers_timestamp(mConsumer.get(), timestamp); + if (res != OK) { + ALOGE("%s: Stream %d: Error setting timestamp: %s (%d)", + __FUNCTION__, mId, strerror(-res), res); + return res; + } + + releaseFence = new Fence(buffer.release_fence); + } + + int anwReleaseFence = releaseFence->dup(); + + /** + * Release the lock briefly to avoid deadlock with + * StreamingProcessor::startStream -> Camera3Stream::isConfiguring (this + * thread will go into StreamingProcessor::onFrameAvailable) during + * queueBuffer + */ + sp<ANativeWindow> currentConsumer = mConsumer; + mLock.unlock(); + + /** + * Return buffer back to ANativeWindow + */ + if (buffer.status == CAMERA3_BUFFER_STATUS_ERROR) { + // Cancel buffer + res = currentConsumer->cancelBuffer(currentConsumer.get(), + container_of(buffer.buffer, ANativeWindowBuffer, handle), + anwReleaseFence); + if (res != OK) { + ALOGE("%s: Stream %d: Error cancelling buffer to native window:" + " %s (%d)", __FUNCTION__, mId, strerror(-res), res); + } + } else { + res = currentConsumer->queueBuffer(currentConsumer.get(), + container_of(buffer.buffer, ANativeWindowBuffer, handle), + anwReleaseFence); + if (res != OK) { + ALOGE("%s: Stream %d: Error queueing buffer to native window: " + "%s (%d)", __FUNCTION__, mId, strerror(-res), res); + } + } + mLock.lock(); + if (res != OK) { + close(anwReleaseFence); + } + + *releaseFenceOut = releaseFence; + + return res; +} + +void Camera3OutputStream::dump(int fd, const Vector<String16> &args) const { + (void) args; + String8 lines; + lines.appendFormat(" Stream[%d]: Output\n", mId); + write(fd, lines.string(), lines.size()); + + Camera3IOStreamBase::dump(fd, args); +} + +status_t Camera3OutputStream::setTransform(int transform) { + ATRACE_CALL(); + Mutex::Autolock l(mLock); + return setTransformLocked(transform); +} + +status_t Camera3OutputStream::setTransformLocked(int transform) { + status_t res = OK; + if (mState == STATE_ERROR) { + ALOGE("%s: Stream in error state", __FUNCTION__); + return INVALID_OPERATION; + } + + mTransform = transform; + if (mState == STATE_CONFIGURED) { + res = native_window_set_buffers_transform(mConsumer.get(), + transform); + if (res != OK) { + ALOGE("%s: Unable to configure stream transform to %x: %s (%d)", + __FUNCTION__, transform, strerror(-res), res); + } + } + return res; +} + +status_t Camera3OutputStream::configureQueueLocked() { + status_t res; + + if ((res = Camera3IOStreamBase::configureQueueLocked()) != OK) { + return res; + } + + ALOG_ASSERT(mConsumer != 0, "mConsumer should never be NULL"); + + // Configure consumer-side ANativeWindow interface + res = native_window_api_connect(mConsumer.get(), + NATIVE_WINDOW_API_CAMERA); + if (res != OK) { + ALOGE("%s: Unable to connect to native window for stream %d", + __FUNCTION__, mId); + return res; + } + + res = native_window_set_usage(mConsumer.get(), camera3_stream::usage); + if (res != OK) { + ALOGE("%s: Unable to configure usage %08x for stream %d", + __FUNCTION__, camera3_stream::usage, mId); + return res; + } + + res = native_window_set_scaling_mode(mConsumer.get(), + NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW); + if (res != OK) { + ALOGE("%s: Unable to configure stream scaling: %s (%d)", + __FUNCTION__, strerror(-res), res); + return res; + } + + if (mMaxSize == 0) { + // For buffers of known size + res = native_window_set_buffers_geometry(mConsumer.get(), + camera3_stream::width, camera3_stream::height, + camera3_stream::format); + } else { + // For buffers with bounded size + res = native_window_set_buffers_geometry(mConsumer.get(), + mMaxSize, 1, + camera3_stream::format); + } + if (res != OK) { + ALOGE("%s: Unable to configure stream buffer geometry" + " %d x %d, format %x for stream %d", + __FUNCTION__, camera3_stream::width, camera3_stream::height, + camera3_stream::format, mId); + return res; + } + + int maxConsumerBuffers; + res = mConsumer->query(mConsumer.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; + } + + ALOGV("%s: Consumer wants %d buffers, HAL wants %d", __FUNCTION__, + maxConsumerBuffers, camera3_stream::max_buffers); + if (camera3_stream::max_buffers == 0) { + ALOGE("%s: Camera HAL requested max_buffer count: %d, requires at least 1", + __FUNCTION__, camera3_stream::max_buffers); + return INVALID_OPERATION; + } + + mTotalBufferCount = maxConsumerBuffers + camera3_stream::max_buffers; + mDequeuedBufferCount = 0; + mFrameCount = 0; + mLastTimestamp = 0; + + res = native_window_set_buffer_count(mConsumer.get(), + mTotalBufferCount); + if (res != OK) { + ALOGE("%s: Unable to set buffer count for stream %d", + __FUNCTION__, mId); + return res; + } + + res = native_window_set_buffers_transform(mConsumer.get(), + mTransform); + if (res != OK) { + ALOGE("%s: Unable to configure stream transform to %x: %s (%d)", + __FUNCTION__, mTransform, strerror(-res), res); + } + + return OK; +} + +status_t Camera3OutputStream::disconnectLocked() { + status_t res; + + if ((res = Camera3IOStreamBase::disconnectLocked()) != OK) { + return res; + } + + res = native_window_api_disconnect(mConsumer.get(), + NATIVE_WINDOW_API_CAMERA); + + /** + * This is not an error. if client calling process dies, the window will + * also die and all calls to it will return DEAD_OBJECT, thus it's already + * "disconnected" + */ + if (res == DEAD_OBJECT) { + ALOGW("%s: While disconnecting stream %d from native window, the" + " native window died from under us", __FUNCTION__, mId); + } + else if (res != OK) { + ALOGE("%s: Unable to disconnect stream %d from native window " + "(error %d %s)", + __FUNCTION__, mId, res, strerror(-res)); + mState = STATE_ERROR; + return res; + } + + mState = (mState == STATE_IN_RECONFIG) ? STATE_IN_CONFIG + : STATE_CONSTRUCTED; + return OK; +} + +status_t Camera3OutputStream::getEndpointUsage(uint32_t *usage) { + + status_t res; + int32_t u = 0; + res = mConsumer->query(mConsumer.get(), + NATIVE_WINDOW_CONSUMER_USAGE_BITS, &u); + *usage = u; + + return res; +} + +}; // namespace camera3 + +}; // namespace android |