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-rw-r--r--services/camera/libcameraservice/device3/Camera3OutputStream.cpp394
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diff --git a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
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+++ b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
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+/*
+ * 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