diff options
Diffstat (limited to 'widget/gonk/nativewindow/GonkBufferQueueKK.cpp')
| -rw-r--r-- | widget/gonk/nativewindow/GonkBufferQueueKK.cpp | 1265 |
1 files changed, 0 insertions, 1265 deletions
diff --git a/widget/gonk/nativewindow/GonkBufferQueueKK.cpp b/widget/gonk/nativewindow/GonkBufferQueueKK.cpp deleted file mode 100644 index 0c5cdfeb9..000000000 --- a/widget/gonk/nativewindow/GonkBufferQueueKK.cpp +++ /dev/null @@ -1,1265 +0,0 @@ -/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ -/* - * Copyright (C) 2012 The Android Open Source Project - * Copyright (C) 2013 Mozilla Foundation - * - * 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 "GonkBufferQueue" -#define ATRACE_TAG ATRACE_TAG_GRAPHICS -//#define LOG_NDEBUG 0 - -#define GL_GLEXT_PROTOTYPES -#define EGL_EGLEXT_PROTOTYPES - -#include <utils/Log.h> -#include <utils/Trace.h> -#include <utils/CallStack.h> -#include <cutils/compiler.h> - -#include "mozilla/layers/GrallocTextureClient.h" -#include "mozilla/layers/ImageBridgeChild.h" -#include "GonkBufferQueueKK.h" - -#define ATRACE_BUFFER_INDEX(index) - -using namespace mozilla; -using namespace mozilla::gfx; -using namespace mozilla::layers; - -namespace android { - -// Get an ID that's unique within this process. -static int32_t createProcessUniqueId() { - static volatile int32_t globalCounter = 0; - return android_atomic_inc(&globalCounter); -} - -static const char* scalingModeName(int scalingMode) { - switch (scalingMode) { - case NATIVE_WINDOW_SCALING_MODE_FREEZE: return "FREEZE"; - case NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW: return "SCALE_TO_WINDOW"; - case NATIVE_WINDOW_SCALING_MODE_SCALE_CROP: return "SCALE_CROP"; - default: return "Unknown"; - } -} - -GonkBufferQueue::GonkBufferQueue(bool allowSynchronousMode, - const sp<IGraphicBufferAlloc>& allocator) : - mDefaultWidth(1), - mDefaultHeight(1), - mMaxAcquiredBufferCount(1), - mDefaultMaxBufferCount(2), - mOverrideMaxBufferCount(0), - mSynchronousMode(true), - mConsumerControlledByApp(false), - mDequeueBufferCannotBlock(false), - mUseAsyncBuffer(true), - mConnectedApi(NO_CONNECTED_API), - mAbandoned(false), - mFrameCounter(0), - mBufferHasBeenQueued(false), - mDefaultBufferFormat(PIXEL_FORMAT_RGBA_8888), - mConsumerUsageBits(0), - mTransformHint(0) -{ - // Choose a name using the PID and a process-unique ID. - mConsumerName = String8::format("unnamed-%d-%d", getpid(), createProcessUniqueId()); - - ALOGV("GonkBufferQueue"); -} - -GonkBufferQueue::~GonkBufferQueue() { - ALOGV("~GonkBufferQueue"); -} - -status_t GonkBufferQueue::setDefaultMaxBufferCountLocked(int count) { - if (count < 2 || count > NUM_BUFFER_SLOTS) - return BAD_VALUE; - - mDefaultMaxBufferCount = count; - mDequeueCondition.broadcast(); - - return NO_ERROR; -} - -void GonkBufferQueue::setConsumerName(const String8& name) { - Mutex::Autolock lock(mMutex); - mConsumerName = name; -} - -status_t GonkBufferQueue::setDefaultBufferFormat(uint32_t defaultFormat) { - Mutex::Autolock lock(mMutex); - mDefaultBufferFormat = defaultFormat; - return NO_ERROR; -} - -status_t GonkBufferQueue::setConsumerUsageBits(uint32_t usage) { - Mutex::Autolock lock(mMutex); - mConsumerUsageBits = usage; - return NO_ERROR; -} - -status_t GonkBufferQueue::setTransformHint(uint32_t hint) { - ALOGV("setTransformHint: %02x", hint); - Mutex::Autolock lock(mMutex); - mTransformHint = hint; - return NO_ERROR; -} - -already_AddRefed<TextureClient> -GonkBufferQueue::getTextureClientFromBuffer(ANativeWindowBuffer* buffer) -{ - Mutex::Autolock _l(mMutex); - if (buffer == NULL) { - ALOGE("getSlotFromBufferLocked: encountered NULL buffer"); - return nullptr; - } - - for (int i = 0; i < NUM_BUFFER_SLOTS; i++) { - if (mSlots[i].mGraphicBuffer != NULL && mSlots[i].mGraphicBuffer->handle == buffer->handle) { - RefPtr<TextureClient> client(mSlots[i].mTextureClient); - return client.forget(); - } - } - ALOGE("getSlotFromBufferLocked: unknown buffer: %p", buffer->handle); - return nullptr; -} - -int GonkBufferQueue::getSlotFromTextureClientLocked( - TextureClient* client) const -{ - if (client == NULL) { - ALOGE("getSlotFromBufferLocked: encountered NULL buffer"); - return BAD_VALUE; - } - - for (int i = 0; i < NUM_BUFFER_SLOTS; i++) { - if (mSlots[i].mTextureClient == client) { - return i; - } - } - ALOGE("getSlotFromBufferLocked: unknown TextureClient: %p", client); - return BAD_VALUE; -} - -status_t GonkBufferQueue::setBufferCount(int bufferCount) { - ALOGV("setBufferCount: count=%d", bufferCount); - - sp<IConsumerListener> listener; - { - Mutex::Autolock lock(mMutex); - - if (mAbandoned) { - ALOGE("setBufferCount: GonkBufferQueue has been abandoned!"); - return NO_INIT; - } - if (bufferCount > NUM_BUFFER_SLOTS) { - ALOGE("setBufferCount: bufferCount too large (max %d)", - NUM_BUFFER_SLOTS); - return BAD_VALUE; - } - - // Error out if the user has dequeued buffers - for (int i=0 ; i<NUM_BUFFER_SLOTS; i++) { - if (mSlots[i].mBufferState == BufferSlot::DEQUEUED) { - ALOGE("setBufferCount: client owns some buffers"); - return -EINVAL; - } - } - - if (bufferCount == 0) { - mOverrideMaxBufferCount = 0; - mDequeueCondition.broadcast(); - return NO_ERROR; - } - - // fine to assume async to false before we're setting the buffer count - const int minBufferSlots = getMinMaxBufferCountLocked(false); - if (bufferCount < minBufferSlots) { - ALOGE("setBufferCount: requested buffer count (%d) is less than " - "minimum (%d)", bufferCount, minBufferSlots); - return BAD_VALUE; - } - - // here we're guaranteed that the client doesn't have dequeued buffers - // and will release all of its buffer references. We don't clear the - // queue, however, so currently queued buffers still get displayed. - // XXX: Should this use drainQueueAndFreeBuffersLocked instead? - freeAllBuffersLocked(); - mOverrideMaxBufferCount = bufferCount; - mDequeueCondition.broadcast(); - listener = mConsumerListener; - } // scope for lock - - if (listener != NULL) { - listener->onBuffersReleased(); - } - - return NO_ERROR; -} - -int GonkBufferQueue::query(int what, int* outValue) -{ - ATRACE_CALL(); - Mutex::Autolock lock(mMutex); - - if (mAbandoned) { - ALOGE("query: GonkBufferQueue has been abandoned!"); - return NO_INIT; - } - - int value; - switch (what) { - case NATIVE_WINDOW_WIDTH: - value = mDefaultWidth; - break; - case NATIVE_WINDOW_HEIGHT: - value = mDefaultHeight; - break; - case NATIVE_WINDOW_FORMAT: - value = mDefaultBufferFormat; - break; - case NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS: - value = getMinUndequeuedBufferCount(false); - break; - case NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND: - value = (mQueue.size() >= 2); - break; - case NATIVE_WINDOW_CONSUMER_USAGE_BITS: - value = mConsumerUsageBits; - break; - default: - return BAD_VALUE; - } - outValue[0] = value; - return NO_ERROR; -} - -status_t GonkBufferQueue::requestBuffer(int slot, sp<GraphicBuffer>* buf) { - ATRACE_CALL(); - ALOGV("requestBuffer: slot=%d", slot); - Mutex::Autolock lock(mMutex); - if (mAbandoned) { - ALOGE("requestBuffer: GonkBufferQueue has been abandoned!"); - return NO_INIT; - } - if (slot < 0 || slot >= NUM_BUFFER_SLOTS) { - ALOGE("requestBuffer: slot index out of range [0, %d]: %d", - NUM_BUFFER_SLOTS, slot); - return BAD_VALUE; - } else if (mSlots[slot].mBufferState != BufferSlot::DEQUEUED) { - ALOGE("requestBuffer: slot %d is not owned by the client (state=%d)", - slot, mSlots[slot].mBufferState); - return BAD_VALUE; - } - mSlots[slot].mRequestBufferCalled = true; - *buf = mSlots[slot].mGraphicBuffer; - return NO_ERROR; -} - -status_t GonkBufferQueue::dequeueBuffer(int *outBuf, sp<Fence>* outFence, bool async, - uint32_t w, uint32_t h, uint32_t format, uint32_t usage) { - ATRACE_CALL(); - ALOGV("dequeueBuffer: w=%d h=%d fmt=%#x usage=%#x", w, h, format, usage); - - if ((w && !h) || (!w && h)) { - ALOGE("dequeueBuffer: invalid size: w=%u, h=%u", w, h); - return BAD_VALUE; - } - - status_t returnFlags(OK); - int buf = INVALID_BUFFER_SLOT; - - { // Scope for the lock - Mutex::Autolock lock(mMutex); - - if (format == 0) { - format = mDefaultBufferFormat; - } - // turn on usage bits the consumer requested - usage |= mConsumerUsageBits; - - int found = -1; - bool tryAgain = true; - while (tryAgain) { - if (mAbandoned) { - ALOGE("dequeueBuffer: GonkBufferQueue has been abandoned!"); - return NO_INIT; - } - - const int maxBufferCount = getMaxBufferCountLocked(async); - if (async && mOverrideMaxBufferCount) { - // FIXME: some drivers are manually setting the buffer-count (which they - // shouldn't), so we do this extra test here to handle that case. - // This is TEMPORARY, until we get this fixed. - if (mOverrideMaxBufferCount < maxBufferCount) { - ALOGE("dequeueBuffer: async mode is invalid with buffercount override"); - return BAD_VALUE; - } - } - - // Free up any buffers that are in slots beyond the max buffer - // count. - //for (int i = maxBufferCount; i < NUM_BUFFER_SLOTS; i++) { - // assert(mSlots[i].mBufferState == BufferSlot::FREE); - // if (mSlots[i].mGraphicBuffer != NULL) { - // freeBufferLocked(i); - // returnFlags |= IGraphicBufferProducer::RELEASE_ALL_BUFFERS; - // } - //} - - // look for a free buffer to give to the client - found = INVALID_BUFFER_SLOT; - int dequeuedCount = 0; - int acquiredCount = 0; - for (int i = 0; i < maxBufferCount; i++) { - const int state = mSlots[i].mBufferState; - switch (state) { - case BufferSlot::DEQUEUED: - dequeuedCount++; - break; - case BufferSlot::ACQUIRED: - acquiredCount++; - break; - case BufferSlot::FREE: - /* We return the oldest of the free buffers to avoid - * stalling the producer if possible. This is because - * the consumer may still have pending reads of the - * buffers in flight. - */ - if ((found < 0) || - mSlots[i].mFrameNumber < mSlots[found].mFrameNumber) { - found = i; - } - break; - } - } - - // clients are not allowed to dequeue more than one buffer - // if they didn't set a buffer count. - if (!mOverrideMaxBufferCount && dequeuedCount) { - ALOGE("dequeueBuffer: can't dequeue multiple buffers without " - "setting the buffer count"); - return -EINVAL; - } - - // See whether a buffer has been queued since the last - // setBufferCount so we know whether to perform the min undequeued - // buffers check below. - if (mBufferHasBeenQueued) { - // make sure the client is not trying to dequeue more buffers - // than allowed. - const int newUndequeuedCount = maxBufferCount - (dequeuedCount+1); - const int minUndequeuedCount = getMinUndequeuedBufferCount(async); - if (newUndequeuedCount < minUndequeuedCount) { - ALOGE("dequeueBuffer: min undequeued buffer count (%d) " - "exceeded (dequeued=%d undequeudCount=%d)", - minUndequeuedCount, dequeuedCount, - newUndequeuedCount); - return -EBUSY; - } - } - - // If no buffer is found, wait for a buffer to be released or for - // the max buffer count to change. - tryAgain = found == INVALID_BUFFER_SLOT; - if (tryAgain) { - // return an error if we're in "cannot block" mode (producer and consumer - // are controlled by the application) -- however, the consumer is allowed - // to acquire briefly an extra buffer (which could cause us to have to wait here) - // and that's okay because we know the wait will be brief (it happens - // if we dequeue a buffer while the consumer has acquired one but not released - // the old one yet -- for e.g.: see GLConsumer::updateTexImage()). - if (mDequeueBufferCannotBlock && (acquiredCount <= mMaxAcquiredBufferCount)) { - ALOGE("dequeueBuffer: would block! returning an error instead."); - return WOULD_BLOCK; - } - mDequeueCondition.wait(mMutex); - } - } - - - if (found == INVALID_BUFFER_SLOT) { - // This should not happen. - ALOGE("dequeueBuffer: no available buffer slots"); - return -EBUSY; - } - - buf = found; - *outBuf = found; - - const bool useDefaultSize = !w && !h; - if (useDefaultSize) { - // use the default size - w = mDefaultWidth; - h = mDefaultHeight; - } - - mSlots[buf].mBufferState = BufferSlot::DEQUEUED; - - const sp<GraphicBuffer>& buffer(mSlots[buf].mGraphicBuffer); - if ((buffer == NULL) || - (uint32_t(buffer->width) != w) || - (uint32_t(buffer->height) != h) || - (uint32_t(buffer->format) != format) || - ((uint32_t(buffer->usage) & usage) != usage)) - { - mSlots[buf].mAcquireCalled = false; - mSlots[buf].mGraphicBuffer = NULL; - mSlots[buf].mRequestBufferCalled = false; - mSlots[buf].mFence = Fence::NO_FENCE; - if (mSlots[buf].mTextureClient) { - mSlots[buf].mTextureClient->ClearRecycleCallback(); - // release TextureClient in ImageBridge thread - RefPtr<TextureClientReleaseTask> task = - MakeAndAddRef<TextureClientReleaseTask>(mSlots[buf].mTextureClient); - mSlots[buf].mTextureClient = NULL; - ImageBridgeChild::GetSingleton()->GetMessageLoop()->PostTask(task.forget()); - } - returnFlags |= IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION; - } - - - if (CC_UNLIKELY(mSlots[buf].mFence == NULL)) { - ALOGE("dequeueBuffer: about to return a NULL fence from mSlot. " - "buf=%d, w=%d, h=%d, format=%d", - buf, buffer->width, buffer->height, buffer->format); - } - *outFence = mSlots[buf].mFence; - mSlots[buf].mFence = Fence::NO_FENCE; - } // end lock scope - - if (returnFlags & IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION) { - - RefPtr<LayersIPCChannel> allocator = ImageBridgeChild::GetSingleton(); - usage |= GraphicBuffer::USAGE_HW_TEXTURE; - GrallocTextureData* texData = GrallocTextureData::Create(IntSize(w, h), format, - gfx::BackendType::NONE, usage, - allocator); - if (!texData) { - return -ENOMEM; - } - - RefPtr<TextureClient> textureClient = new TextureClient(texData, TextureFlags::RECYCLE | TextureFlags::DEALLOCATE_CLIENT, allocator); - - { // Scope for the lock - Mutex::Autolock lock(mMutex); - - if (mAbandoned) { - ALOGE("dequeueBuffer: SurfaceTexture has been abandoned!"); - return NO_INIT; - } - - mSlots[buf].mGraphicBuffer = texData->GetGraphicBuffer(); - mSlots[buf].mTextureClient = textureClient; - ALOGD("dequeueBuffer: returning slot=%d buf=%p ", buf, - mSlots[buf].mGraphicBuffer->handle); - - } - - } - - ALOGV("dequeueBuffer: returning slot=%d/%llu buf=%p flags=%#x", *outBuf, - mSlots[*outBuf].mFrameNumber, - mSlots[*outBuf].mGraphicBuffer->handle, returnFlags); - - return returnFlags; -} - -status_t GonkBufferQueue::setSynchronousMode(bool enabled) { - ALOGV("setSynchronousMode: enabled=%d", enabled); - Mutex::Autolock lock(mMutex); - - if (mAbandoned) { - ALOGE("setSynchronousMode: BufferQueue has been abandoned!"); - return NO_INIT; - } - - if (mSynchronousMode != enabled) { - mSynchronousMode = enabled; - mDequeueCondition.broadcast(); - } - return OK; -} - -status_t GonkBufferQueue::queueBuffer(int buf, - const QueueBufferInput& input, QueueBufferOutput* output) { - ATRACE_CALL(); - - Rect crop; - uint32_t transform; - int scalingMode; - int64_t timestamp; - bool isAutoTimestamp; - bool async; - sp<Fence> fence; - - input.deflate(×tamp, &isAutoTimestamp, &crop, &scalingMode, &transform, - &async, &fence); - - if (fence == NULL) { - ALOGE("queueBuffer: fence is NULL"); - return BAD_VALUE; - } - - ALOGV("queueBuffer: slot=%d time=%#llx crop=[%d,%d,%d,%d] tr=%#x " - "scale=%s", - buf, timestamp, crop.left, crop.top, crop.right, crop.bottom, - transform, scalingModeName(scalingMode)); - - switch (scalingMode) { - case NATIVE_WINDOW_SCALING_MODE_FREEZE: - case NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW: - case NATIVE_WINDOW_SCALING_MODE_SCALE_CROP: - case NATIVE_WINDOW_SCALING_MODE_NO_SCALE_CROP: - break; - default: - ALOGE("unknown scaling mode: %d", scalingMode); - return -EINVAL; - } - - sp<IConsumerListener> listener; - - { // scope for the lock - Mutex::Autolock lock(mMutex); - - if (mAbandoned) { - ALOGE("queueBuffer: GonkBufferQueue has been abandoned!"); - return NO_INIT; - } - - const int maxBufferCount = getMaxBufferCountLocked(async); - if (async && mOverrideMaxBufferCount) { - // FIXME: some drivers are manually setting the buffer-count (which they - // shouldn't), so we do this extra test here to handle that case. - // This is TEMPORARY, until we get this fixed. - if (mOverrideMaxBufferCount < maxBufferCount) { - ALOGE("queueBuffer: async mode is invalid with buffercount override"); - return BAD_VALUE; - } - } - if (buf < 0 || buf >= maxBufferCount) { - ALOGE("queueBuffer: slot index out of range [0, %d]: %d", - maxBufferCount, buf); - return -EINVAL; - } else if (mSlots[buf].mBufferState != BufferSlot::DEQUEUED) { - ALOGE("queueBuffer: slot %d is not owned by the client " - "(state=%d)", buf, mSlots[buf].mBufferState); - return -EINVAL; - } else if (!mSlots[buf].mRequestBufferCalled) { - ALOGE("queueBuffer: slot %d was enqueued without requesting a " - "buffer", buf); - return -EINVAL; - } - - ALOGV("queueBuffer: slot=%d/%llu time=%#llx crop=[%d,%d,%d,%d] " - "tr=%#x scale=%s", - buf, mFrameCounter + 1, timestamp, - crop.left, crop.top, crop.right, crop.bottom, - transform, scalingModeName(scalingMode)); - - const sp<GraphicBuffer>& graphicBuffer(mSlots[buf].mGraphicBuffer); - Rect bufferRect(graphicBuffer->getWidth(), graphicBuffer->getHeight()); - Rect croppedCrop; - crop.intersect(bufferRect, &croppedCrop); - if (croppedCrop != crop) { - ALOGE("queueBuffer: crop rect is not contained within the " - "buffer in slot %d", buf); - return -EINVAL; - } - - mSlots[buf].mFence = fence; - mSlots[buf].mBufferState = BufferSlot::QUEUED; - mFrameCounter++; - mSlots[buf].mFrameNumber = mFrameCounter; - - BufferItem item; - item.mAcquireCalled = mSlots[buf].mAcquireCalled; - item.mGraphicBuffer = mSlots[buf].mGraphicBuffer; - item.mCrop = crop; - item.mTransform = transform & ~NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY; - item.mTransformToDisplayInverse = bool(transform & NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY); - item.mScalingMode = scalingMode; - item.mTimestamp = timestamp; - item.mIsAutoTimestamp = isAutoTimestamp; - item.mFrameNumber = mFrameCounter; - item.mBuf = buf; - item.mFence = fence; - item.mIsDroppable = mDequeueBufferCannotBlock || async; - - if (mQueue.empty()) { - // when the queue is empty, we can ignore "mDequeueBufferCannotBlock", and - // simply queue this buffer. - mQueue.push_back(item); - } else { - // when the queue is not empty, we need to look at the front buffer - // state and see if we need to replace it. - Fifo::iterator front(mQueue.begin()); - if (front->mIsDroppable || !mSynchronousMode) { - // buffer slot currently queued is marked free if still tracked - if (stillTracking(front)) { - mSlots[front->mBuf].mBufferState = BufferSlot::FREE; - // reset the frame number of the freed buffer so that it is the first in - // line to be dequeued again. - mSlots[front->mBuf].mFrameNumber = 0; - } - // and we record the new buffer in the queued list - *front = item; - } else { - mQueue.push_back(item); - } - } - // always signals that an additional frame should be consumed - // to handle max acquired buffer count reached case. - listener = mConsumerListener; - - mBufferHasBeenQueued = true; - mDequeueCondition.broadcast(); - - output->inflate(mDefaultWidth, mDefaultHeight, mTransformHint, - mQueue.size()); - - } // scope for the lock - - // call back without lock held - if (listener != 0) { - listener->onFrameAvailable(); - } - return NO_ERROR; -} - -void GonkBufferQueue::cancelBuffer(int buf, const sp<Fence>& fence) { - ATRACE_CALL(); - ALOGV("cancelBuffer: slot=%d", buf); - Mutex::Autolock lock(mMutex); - - if (mAbandoned) { - ALOGW("cancelBuffer: GonkBufferQueue has been abandoned!"); - return; - } - - if (buf < 0 || buf >= NUM_BUFFER_SLOTS) { - ALOGE("cancelBuffer: slot index out of range [0, %d]: %d", - NUM_BUFFER_SLOTS, buf); - return; - } else if (mSlots[buf].mBufferState != BufferSlot::DEQUEUED) { - ALOGE("cancelBuffer: slot %d is not owned by the client (state=%d)", - buf, mSlots[buf].mBufferState); - return; - } else if (fence == NULL) { - ALOGE("cancelBuffer: fence is NULL"); - return; - } - mSlots[buf].mBufferState = BufferSlot::FREE; - mSlots[buf].mFrameNumber = 0; - mSlots[buf].mFence = fence; - mDequeueCondition.broadcast(); -} - - -status_t GonkBufferQueue::connect(const sp<IBinder>& token, - int api, bool producerControlledByApp, QueueBufferOutput* output) { - ATRACE_CALL(); - ALOGV("connect: api=%d producerControlledByApp=%s", api, - producerControlledByApp ? "true" : "false"); - Mutex::Autolock lock(mMutex); - -retry: - if (mAbandoned) { - ALOGE("connect: GonkBufferQueue has been abandoned!"); - return NO_INIT; - } - - if (mConsumerListener == NULL) { - ALOGE("connect: GonkBufferQueue has no consumer!"); - return NO_INIT; - } - - if (mConnectedApi != NO_CONNECTED_API) { - ALOGE("connect: already connected (cur=%d, req=%d)", - mConnectedApi, api); - return -EINVAL; - } - - // If we disconnect and reconnect quickly, we can be in a state where our slots are - // empty but we have many buffers in the queue. This can cause us to run out of - // memory if we outrun the consumer. Wait here if it looks like we have too many - // buffers queued up. - int maxBufferCount = getMaxBufferCountLocked(false); // worst-case, i.e. largest value - if (mQueue.size() > (size_t) maxBufferCount) { - // TODO: make this bound tighter? - ALOGV("queue size is %d, waiting", mQueue.size()); - mDequeueCondition.wait(mMutex); - goto retry; - } - - int err = NO_ERROR; - switch (api) { - case NATIVE_WINDOW_API_EGL: - case NATIVE_WINDOW_API_CPU: - case NATIVE_WINDOW_API_MEDIA: - case NATIVE_WINDOW_API_CAMERA: - mConnectedApi = api; - output->inflate(mDefaultWidth, mDefaultHeight, mTransformHint, mQueue.size()); - - // set-up a death notification so that we can disconnect - // automatically when/if the remote producer dies. - if (token != NULL && token->remoteBinder() != NULL) { - status_t err = token->linkToDeath(static_cast<IBinder::DeathRecipient*>(this)); - if (err == NO_ERROR) { - mConnectedProducerToken = token; - } else { - ALOGE("linkToDeath failed: %s (%d)", strerror(-err), err); - } - } - break; - default: - err = -EINVAL; - break; - } - - mBufferHasBeenQueued = false; - mDequeueBufferCannotBlock = mConsumerControlledByApp && producerControlledByApp; - - return err; -} - -void GonkBufferQueue::binderDied(const wp<IBinder>& who) { - // If we're here, it means that a producer we were connected to died. - // We're GUARANTEED that we still are connected to it because it has no other way - // to get disconnected -- or -- we wouldn't be here because we're removing this - // callback upon disconnect. Therefore, it's okay to read mConnectedApi without - // synchronization here. - int api = mConnectedApi; - this->disconnect(api); -} - -status_t GonkBufferQueue::disconnect(int api) { - ATRACE_CALL(); - ALOGV("disconnect: api=%d", api); - - int err = NO_ERROR; - sp<IConsumerListener> listener; - - { // Scope for the lock - Mutex::Autolock lock(mMutex); - - if (mAbandoned) { - // it is not really an error to disconnect after the surface - // has been abandoned, it should just be a no-op. - return NO_ERROR; - } - - switch (api) { - case NATIVE_WINDOW_API_EGL: - case NATIVE_WINDOW_API_CPU: - case NATIVE_WINDOW_API_MEDIA: - case NATIVE_WINDOW_API_CAMERA: - if (mConnectedApi == api) { - freeAllBuffersLocked(); - mConnectedApi = NO_CONNECTED_API; - mDequeueCondition.broadcast(); - listener = mConsumerListener; - } else { - ALOGE("disconnect: connected to another api (cur=%d, req=%d)", - mConnectedApi, api); - err = -EINVAL; - } - break; - default: - ALOGE("disconnect: unknown API %d", api); - err = -EINVAL; - break; - } - } - - if (listener != NULL) { - listener->onBuffersReleased(); - } - - return err; -} - -void GonkBufferQueue::dumpToString(String8& result, const char* prefix) const { - Mutex::Autolock _l(mMutex); - - String8 fifo; - int fifoSize = 0; - Fifo::const_iterator i(mQueue.begin()); - while (i != mQueue.end()) { - fifo.appendFormat("%02d:%p crop=[%d,%d,%d,%d], " - "xform=0x%02x, time=%#llx, scale=%s\n", - i->mBuf, i->mGraphicBuffer.get(), - i->mCrop.left, i->mCrop.top, i->mCrop.right, - i->mCrop.bottom, i->mTransform, i->mTimestamp, - scalingModeName(i->mScalingMode) - ); - i++; - fifoSize++; - } - - - result.appendFormat( - "%s-BufferQueue mMaxAcquiredBufferCount=%d, mDequeueBufferCannotBlock=%d, default-size=[%dx%d], " - "default-format=%d, transform-hint=%02x, FIFO(%d)={%s}\n", - prefix, mMaxAcquiredBufferCount, mDequeueBufferCannotBlock, mDefaultWidth, - mDefaultHeight, mDefaultBufferFormat, mTransformHint, - fifoSize, fifo.string()); - - struct { - const char * operator()(int state) const { - switch (state) { - case BufferSlot::DEQUEUED: return "DEQUEUED"; - case BufferSlot::QUEUED: return "QUEUED"; - case BufferSlot::FREE: return "FREE"; - case BufferSlot::ACQUIRED: return "ACQUIRED"; - default: return "Unknown"; - } - } - } stateName; - - // just trim the free buffers to not spam the dump - int maxBufferCount = 0; - for (int i=NUM_BUFFER_SLOTS-1 ; i>=0 ; i--) { - const BufferSlot& slot(mSlots[i]); - if ((slot.mBufferState != BufferSlot::FREE) || (slot.mGraphicBuffer != NULL)) { - maxBufferCount = i+1; - break; - } - } - - for (int i=0 ; i<maxBufferCount ; i++) { - const BufferSlot& slot(mSlots[i]); - const sp<GraphicBuffer>& buf(slot.mGraphicBuffer); - result.appendFormat( - "%s%s[%02d:%p] state=%-8s", - prefix, (slot.mBufferState == BufferSlot::ACQUIRED)?">":" ", i, buf.get(), - stateName(slot.mBufferState) - ); - - if (buf != NULL) { - result.appendFormat( - ", %p [%4ux%4u:%4u,%3X]", - buf->handle, buf->width, buf->height, buf->stride, - buf->format); - } - result.append("\n"); - } -} - -void GonkBufferQueue::freeAllBuffersLocked() -{ - ALOGW_IF(!mQueue.isEmpty(), - "freeAllBuffersLocked called but mQueue is not empty"); - mQueue.clear(); - mBufferHasBeenQueued = false; - for (int i = 0; i < NUM_BUFFER_SLOTS; i++) { - mSlots[i].mGraphicBuffer = 0; - if (mSlots[i].mTextureClient) { - mSlots[i].mTextureClient->ClearRecycleCallback(); - // release TextureClient in ImageBridge thread - RefPtr<TextureClientReleaseTask> task = - MakeAndAddRef<TextureClientReleaseTask>(mSlots[i].mTextureClient); - mSlots[i].mTextureClient = NULL; - ImageBridgeChild::GetSingleton()->GetMessageLoop()->PostTask(task.forget()); - } - if (mSlots[i].mBufferState == BufferSlot::ACQUIRED) { - mSlots[i].mNeedsCleanupOnRelease = true; - } - mSlots[i].mBufferState = BufferSlot::FREE; - mSlots[i].mFrameNumber = 0; - mSlots[i].mAcquireCalled = false; - // destroy fence as GonkBufferQueue now takes ownership - mSlots[i].mFence = Fence::NO_FENCE; - } -} - -status_t GonkBufferQueue::acquireBuffer(BufferItem *buffer, nsecs_t expectedPresent) { - ATRACE_CALL(); - Mutex::Autolock _l(mMutex); - - // Check that the consumer doesn't currently have the maximum number of - // buffers acquired. We allow the max buffer count to be exceeded by one - // buffer, so that the consumer can successfully set up the newly acquired - // buffer before releasing the old one. - int numAcquiredBuffers = 0; - for (int i = 0; i < NUM_BUFFER_SLOTS; i++) { - if (mSlots[i].mBufferState == BufferSlot::ACQUIRED) { - numAcquiredBuffers++; - } - } - if (numAcquiredBuffers >= mMaxAcquiredBufferCount+1) { - ALOGE("acquireBuffer: max acquired buffer count reached: %d (max=%d)", - numAcquiredBuffers, mMaxAcquiredBufferCount); - return INVALID_OPERATION; - } - - // check if queue is empty - // In asynchronous mode the list is guaranteed to be one buffer - // deep, while in synchronous mode we use the oldest buffer. - if (mQueue.empty()) { - return NO_BUFFER_AVAILABLE; - } - - Fifo::iterator front(mQueue.begin()); - - // If expectedPresent is specified, we may not want to return a buffer yet. - // If it's specified and there's more than one buffer queued, we may - // want to drop a buffer. - if (expectedPresent != 0) { - const int MAX_REASONABLE_NSEC = 1000000000ULL; // 1 second - - // The "expectedPresent" argument indicates when the buffer is expected - // to be presented on-screen. If the buffer's desired-present time - // is earlier (less) than expectedPresent, meaning it'll be displayed - // on time or possibly late if we show it ASAP, we acquire and return - // it. If we don't want to display it until after the expectedPresent - // time, we return PRESENT_LATER without acquiring it. - // - // To be safe, we don't defer acquisition if expectedPresent is - // more than one second in the future beyond the desired present time - // (i.e. we'd be holding the buffer for a long time). - // - // NOTE: code assumes monotonic time values from the system clock are - // positive. - - // Start by checking to see if we can drop frames. We skip this check - // if the timestamps are being auto-generated by Surface -- if the - // app isn't generating timestamps explicitly, they probably don't - // want frames to be discarded based on them. - while (mQueue.size() > 1 && !mQueue[0].mIsAutoTimestamp) { - // If entry[1] is timely, drop entry[0] (and repeat). We apply - // an additional criteria here: we only drop the earlier buffer if - // our desiredPresent falls within +/- 1 second of the expected - // present. Otherwise, bogus desiredPresent times (e.g. 0 or - // a small relative timestamp), which normally mean "ignore the - // timestamp and acquire immediately", would cause us to drop - // frames. - // - // We may want to add an additional criteria: don't drop the - // earlier buffer if entry[1]'s fence hasn't signaled yet. - // - // (Vector front is [0], back is [size()-1]) - const BufferItem& bi(mQueue[1]); - nsecs_t desiredPresent = bi.mTimestamp; - if (desiredPresent < expectedPresent - MAX_REASONABLE_NSEC || - desiredPresent > expectedPresent) { - // This buffer is set to display in the near future, or - // desiredPresent is garbage. Either way we don't want to - // drop the previous buffer just to get this on screen sooner. - ALOGV("pts nodrop: des=%lld expect=%lld (%lld) now=%lld", - desiredPresent, expectedPresent, desiredPresent - expectedPresent, - systemTime(CLOCK_MONOTONIC)); - break; - } - ALOGV("pts drop: queue1des=%lld expect=%lld size=%d", - desiredPresent, expectedPresent, mQueue.size()); - if (stillTracking(front)) { - // front buffer is still in mSlots, so mark the slot as free - mSlots[front->mBuf].mBufferState = BufferSlot::FREE; - } - mQueue.erase(front); - front = mQueue.begin(); - } - - // See if the front buffer is due. - nsecs_t desiredPresent = front->mTimestamp; - if (desiredPresent > expectedPresent && - desiredPresent < expectedPresent + MAX_REASONABLE_NSEC) { - ALOGV("pts defer: des=%lld expect=%lld (%lld) now=%lld", - desiredPresent, expectedPresent, desiredPresent - expectedPresent, - systemTime(CLOCK_MONOTONIC)); - return PRESENT_LATER; - } - - ALOGV("pts accept: des=%lld expect=%lld (%lld) now=%lld", - desiredPresent, expectedPresent, desiredPresent - expectedPresent, - systemTime(CLOCK_MONOTONIC)); - } - - int buf = front->mBuf; - buffer->mGraphicBuffer = mSlots[buf].mGraphicBuffer; - buffer->mFrameNumber = mSlots[buf].mFrameNumber; - buffer->mBuf = buf; - buffer->mFence = mSlots[buf].mFence; - ATRACE_BUFFER_INDEX(buf); - - ALOGV("acquireBuffer: acquiring { slot=%d/%llu, buffer=%p }", - front->mBuf, front->mFrameNumber, - front->mGraphicBuffer->handle); - // if front buffer still being tracked update slot state - if (stillTracking(front)) { - mSlots[buf].mAcquireCalled = true; - mSlots[buf].mNeedsCleanupOnRelease = false; - mSlots[buf].mBufferState = BufferSlot::ACQUIRED; - mSlots[buf].mFence = Fence::NO_FENCE; - } - - // If the buffer has previously been acquired by the consumer, set - // mGraphicBuffer to NULL to avoid unnecessarily remapping this - // buffer on the consumer side. - //if (buffer->mAcquireCalled) { - // buffer->mGraphicBuffer = NULL; - //} - - mQueue.erase(front); - mDequeueCondition.broadcast(); - - return NO_ERROR; -} - -status_t GonkBufferQueue::releaseBuffer(int buf, uint64_t frameNumber, const sp<Fence>& fence) { - ATRACE_CALL(); - - if (buf == INVALID_BUFFER_SLOT || fence == NULL) { - return BAD_VALUE; - } - - Mutex::Autolock _l(mMutex); - - // If the frame number has changed because buffer has been reallocated, - // we can ignore this releaseBuffer for the old buffer. - //if (frameNumber != mSlots[buf].mFrameNumber) { - // return STALE_BUFFER_SLOT; - //} - - - // Internal state consistency checks: - // Make sure this buffers hasn't been queued while we were owning it (acquired) - Fifo::iterator front(mQueue.begin()); - Fifo::const_iterator const end(mQueue.end()); - while (front != end) { - if (front->mBuf == buf) { - LOG_ALWAYS_FATAL("[%s] received new buffer(#%lld) on slot #%d that has not yet been " - "acquired", mConsumerName.string(), frameNumber, buf); - break; // never reached - } - front++; - } - - // The buffer can now only be released if its in the acquired state - if (mSlots[buf].mBufferState == BufferSlot::ACQUIRED) { - mSlots[buf].mFence = fence; - mSlots[buf].mBufferState = BufferSlot::FREE; - } else if (mSlots[buf].mNeedsCleanupOnRelease) { - ALOGV("releasing a stale buf %d its state was %d", buf, mSlots[buf].mBufferState); - mSlots[buf].mNeedsCleanupOnRelease = false; - return STALE_BUFFER_SLOT; - } else { - ALOGE("attempted to release buf %d but its state was %d", buf, mSlots[buf].mBufferState); - return -EINVAL; - } - - mDequeueCondition.broadcast(); - return NO_ERROR; -} - -status_t GonkBufferQueue::consumerConnect(const sp<IConsumerListener>& consumerListener, - bool controlledByApp) { - ALOGV("consumerConnect controlledByApp=%s", - controlledByApp ? "true" : "false"); - Mutex::Autolock lock(mMutex); - - if (mAbandoned) { - ALOGE("consumerConnect: GonkBufferQueue has been abandoned!"); - return NO_INIT; - } - if (consumerListener == NULL) { - ALOGE("consumerConnect: consumerListener may not be NULL"); - return BAD_VALUE; - } - - mConsumerListener = consumerListener; - mConsumerControlledByApp = controlledByApp; - - return NO_ERROR; -} - -status_t GonkBufferQueue::consumerDisconnect() { - ALOGV("consumerDisconnect"); - Mutex::Autolock lock(mMutex); - - if (mConsumerListener == NULL) { - ALOGE("consumerDisconnect: No consumer is connected!"); - return -EINVAL; - } - - mAbandoned = true; - mConsumerListener = NULL; - mQueue.clear(); - freeAllBuffersLocked(); - mDequeueCondition.broadcast(); - return NO_ERROR; -} - -status_t GonkBufferQueue::getReleasedBuffers(uint32_t* slotMask) { - ALOGV("getReleasedBuffers"); - Mutex::Autolock lock(mMutex); - - if (mAbandoned) { - ALOGE("getReleasedBuffers: GonkBufferQueue has been abandoned!"); - return NO_INIT; - } - - uint32_t mask = 0; - for (int i = 0; i < NUM_BUFFER_SLOTS; i++) { - if (!mSlots[i].mAcquireCalled) { - mask |= 1 << i; - } - } - - // Remove buffers in flight (on the queue) from the mask where acquire has - // been called, as the consumer will not receive the buffer address, so - // it should not free these slots. - Fifo::iterator front(mQueue.begin()); - while (front != mQueue.end()) { - if (front->mAcquireCalled) - mask &= ~(1 << front->mBuf); - front++; - } - - *slotMask = mask; - - ALOGV("getReleasedBuffers: returning mask %#x", mask); - return NO_ERROR; -} - -status_t GonkBufferQueue::setDefaultBufferSize(uint32_t w, uint32_t h) { - ALOGV("setDefaultBufferSize: w=%d, h=%d", w, h); - if (!w || !h) { - ALOGE("setDefaultBufferSize: dimensions cannot be 0 (w=%d, h=%d)", - w, h); - return BAD_VALUE; - } - - Mutex::Autolock lock(mMutex); - mDefaultWidth = w; - mDefaultHeight = h; - return NO_ERROR; -} - -status_t GonkBufferQueue::setDefaultMaxBufferCount(int bufferCount) { - ATRACE_CALL(); - Mutex::Autolock lock(mMutex); - return setDefaultMaxBufferCountLocked(bufferCount); -} - -status_t GonkBufferQueue::disableAsyncBuffer() { - ATRACE_CALL(); - Mutex::Autolock lock(mMutex); - if (mConsumerListener != NULL) { - ALOGE("disableAsyncBuffer: consumer already connected!"); - return INVALID_OPERATION; - } - mUseAsyncBuffer = false; - return NO_ERROR; -} - -status_t GonkBufferQueue::setMaxAcquiredBufferCount(int maxAcquiredBuffers) { - ATRACE_CALL(); - Mutex::Autolock lock(mMutex); - if (maxAcquiredBuffers < 1 || maxAcquiredBuffers > MAX_MAX_ACQUIRED_BUFFERS) { - ALOGE("setMaxAcquiredBufferCount: invalid count specified: %d", - maxAcquiredBuffers); - return BAD_VALUE; - } - if (mConnectedApi != NO_CONNECTED_API) { - return INVALID_OPERATION; - } - mMaxAcquiredBufferCount = maxAcquiredBuffers; - return NO_ERROR; -} - -int GonkBufferQueue::getMinUndequeuedBufferCount(bool async) const { - // if dequeueBuffer is allowed to error out, we don't have to - // add an extra buffer. - if (!mUseAsyncBuffer) - return mMaxAcquiredBufferCount; - - // we're in async mode, or we want to prevent the app to - // deadlock itself, we throw-in an extra buffer to guarantee it. - if (mDequeueBufferCannotBlock || async || !mSynchronousMode) - return mMaxAcquiredBufferCount + 1; - - return mMaxAcquiredBufferCount; -} - -int GonkBufferQueue::getMinMaxBufferCountLocked(bool async) const { - return getMinUndequeuedBufferCount(async) + 1; -} - -int GonkBufferQueue::getMaxBufferCountLocked(bool async) const { - int minMaxBufferCount = getMinMaxBufferCountLocked(async); - - int maxBufferCount = mDefaultMaxBufferCount; - if (maxBufferCount < minMaxBufferCount) { - maxBufferCount = minMaxBufferCount; - } - if (mOverrideMaxBufferCount != 0) { - assert(mOverrideMaxBufferCount >= minMaxBufferCount); - maxBufferCount = mOverrideMaxBufferCount; - } - - // Any buffers that are dequeued by the producer or sitting in the queue - // waiting to be consumed need to have their slots preserved. Such - // buffers will temporarily keep the max buffer count up until the slots - // no longer need to be preserved. - for (int i = maxBufferCount; i < NUM_BUFFER_SLOTS; i++) { - BufferSlot::BufferState state = mSlots[i].mBufferState; - if (state == BufferSlot::QUEUED || state == BufferSlot::DEQUEUED) { - maxBufferCount = i + 1; - } - } - - return maxBufferCount; -} - -bool GonkBufferQueue::stillTracking(const BufferItem *item) const { - const BufferSlot &slot = mSlots[item->mBuf]; - - ALOGV("stillTracking?: item: { slot=%d/%llu, buffer=%p }, " - "slot: { slot=%d/%llu, buffer=%p }", - item->mBuf, item->mFrameNumber, - (item->mGraphicBuffer.get() ? item->mGraphicBuffer->handle : 0), - item->mBuf, slot.mFrameNumber, - (slot.mGraphicBuffer.get() ? slot.mGraphicBuffer->handle : 0)); - - // Compare item with its original buffer slot. We can check the slot - // as the buffer would not be moved to a different slot by the producer. - return (slot.mGraphicBuffer != NULL && - item->mGraphicBuffer->handle == slot.mGraphicBuffer->handle); -} - -GonkBufferQueue::ProxyConsumerListener::ProxyConsumerListener( - const wp<ConsumerListener>& consumerListener): - mConsumerListener(consumerListener) {} - -GonkBufferQueue::ProxyConsumerListener::~ProxyConsumerListener() {} - -void GonkBufferQueue::ProxyConsumerListener::onFrameAvailable() { - sp<ConsumerListener> listener(mConsumerListener.promote()); - if (listener != NULL) { - listener->onFrameAvailable(); - } -} - -void GonkBufferQueue::ProxyConsumerListener::onBuffersReleased() { - sp<ConsumerListener> listener(mConsumerListener.promote()); - if (listener != NULL) { - listener->onBuffersReleased(); - } -} - -}; // namespace android |