diff options
Diffstat (limited to 'widget/gonk/nativewindow/GonkBufferQueueJB.cpp')
| -rw-r--r-- | widget/gonk/nativewindow/GonkBufferQueueJB.cpp | 1036 |
1 files changed, 1036 insertions, 0 deletions
diff --git a/widget/gonk/nativewindow/GonkBufferQueueJB.cpp b/widget/gonk/nativewindow/GonkBufferQueueJB.cpp new file mode 100644 index 000000000..81502f81e --- /dev/null +++ b/widget/gonk/nativewindow/GonkBufferQueueJB.cpp @@ -0,0 +1,1036 @@ +/* -*- 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 "mozilla/layers/GrallocTextureClient.h" +#include "mozilla/layers/ImageBridgeChild.h" + +#include "GonkBufferQueueJB.h" + +// Macros for including the GonkBufferQueue name in log messages +#define ST_LOGV(...) __android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, __VA_ARGS__) +#define ST_LOGD(...) __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__) +#define ST_LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__) +#define ST_LOGW(...) __android_log_print(ANDROID_LOG_WARN, LOG_TAG, __VA_ARGS__) +#define ST_LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__) + +#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), + mAllowSynchronousMode(allowSynchronousMode), + 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()); + + ST_LOGV("GonkBufferQueue"); +} + +GonkBufferQueue::~GonkBufferQueue() { + ST_LOGV("~GonkBufferQueue"); +} + +status_t GonkBufferQueue::setDefaultMaxBufferCountLocked(int count) { + if (count < 2 || count > NUM_BUFFER_SLOTS) + return BAD_VALUE; + + mDefaultMaxBufferCount = count; + mDequeueCondition.broadcast(); + + return NO_ERROR; +} + +bool GonkBufferQueue::isSynchronousMode() const { + Mutex::Autolock lock(mMutex); + return mSynchronousMode; +} + +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) { + ST_LOGV("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) { + ST_LOGE("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(); + } + } + ST_LOGE("getSlotFromBufferLocked: unknown buffer: %p", buffer->handle); + return nullptr; +} + +int GonkBufferQueue::getSlotFromTextureClientLocked( + TextureClient* client) const +{ + if (client == NULL) { + ST_LOGE("getSlotFromBufferLocked: encountered NULL buffer"); + return BAD_VALUE; + } + + for (int i = 0; i < NUM_BUFFER_SLOTS; i++) { + if (mSlots[i].mTextureClient == client) { + return i; + } + } + ST_LOGE("getSlotFromBufferLocked: unknown TextureClient: %p", client); + return BAD_VALUE; +} + + +status_t GonkBufferQueue::setBufferCount(int bufferCount) { + ST_LOGV("setBufferCount: count=%d", bufferCount); + + sp<ConsumerListener> listener; + { + Mutex::Autolock lock(mMutex); + + if (mAbandoned) { + ST_LOGE("setBufferCount: GonkBufferQueue has been abandoned!"); + return NO_INIT; + } + if (bufferCount > NUM_BUFFER_SLOTS) { + ST_LOGE("setBufferCount: bufferCount too large (max %d)", + NUM_BUFFER_SLOTS); + return BAD_VALUE; + } + + // Error out if the user has dequeued buffers + int maxBufferCount = getMaxBufferCountLocked(); + for (int i=0 ; i<maxBufferCount; i++) { + if (mSlots[i].mBufferState == BufferSlot::DEQUEUED) { + ST_LOGE("setBufferCount: client owns some buffers"); + return -EINVAL; + } + } + + const int minBufferSlots = getMinMaxBufferCountLocked(); + if (bufferCount == 0) { + mOverrideMaxBufferCount = 0; + mDequeueCondition.broadcast(); + return NO_ERROR; + } + + if (bufferCount < minBufferSlots) { + ST_LOGE("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. + // + // XXX: Should this use drainQueueAndFreeBuffersLocked instead? + freeAllBuffersLocked(); + mOverrideMaxBufferCount = bufferCount; + mBufferHasBeenQueued = false; + mDequeueCondition.broadcast(); + listener = mConsumerListener; + } // scope for lock + + if (listener != NULL) { + listener->onBuffersReleased(); + } + + return NO_ERROR; +} + +int GonkBufferQueue::query(int what, int* outValue) +{ + Mutex::Autolock lock(mMutex); + + if (mAbandoned) { + ST_LOGE("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 = getMinUndequeuedBufferCountLocked(); + break; + case NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND: + value = (mQueue.size() >= 2); + break; + default: + return BAD_VALUE; + } + outValue[0] = value; + return NO_ERROR; +} + +status_t GonkBufferQueue::requestBuffer(int slot, sp<GraphicBuffer>* buf) { + ST_LOGV("requestBuffer: slot=%d", slot); + Mutex::Autolock lock(mMutex); + if (mAbandoned) { + ST_LOGE("requestBuffer: GonkBufferQueue has been abandoned!"); + return NO_INIT; + } + int maxBufferCount = getMaxBufferCountLocked(); + if (slot < 0 || maxBufferCount <= slot) { + ST_LOGE("requestBuffer: slot index out of range [0, %d]: %d", + maxBufferCount, slot); + return BAD_VALUE; + } else if (mSlots[slot].mBufferState != BufferSlot::DEQUEUED) { + // XXX: I vaguely recall there was some reason this can be valid, but + // for the life of me I can't recall under what circumstances that's + // the case. + ST_LOGE("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, + uint32_t w, uint32_t h, uint32_t format, uint32_t usage) { + ST_LOGV("dequeueBuffer: w=%d h=%d fmt=%#x usage=%#x", w, h, format, usage); + + if ((w && !h) || (!w && h)) { + ST_LOGE("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; + int dequeuedCount = 0; + bool tryAgain = true; + while (tryAgain) { + if (mAbandoned) { + ST_LOGE("dequeueBuffer: GonkBufferQueue has been abandoned!"); + return NO_INIT; + } + + const int maxBufferCount = getMaxBufferCountLocked(); + + // 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; + dequeuedCount = 0; + for (int i = 0; i < maxBufferCount; i++) { + const int state = mSlots[i].mBufferState; + if (state == BufferSlot::DEQUEUED) { + dequeuedCount++; + } + + if (state == 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; + } + } + } + + // clients are not allowed to dequeue more than one buffer + // if they didn't set a buffer count. + if (!mOverrideMaxBufferCount && dequeuedCount) { + ST_LOGE("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 = getMinUndequeuedBufferCountLocked(); + if (newUndequeuedCount < minUndequeuedCount) { + ST_LOGE("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) { + mDequeueCondition.wait(mMutex); + } + } + + + if (found == INVALID_BUFFER_SLOT) { + // This should not happen. + ST_LOGE("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; + } + + *outFence = mSlots[buf].mFence; + mSlots[buf].mFence = Fence::NO_FENCE; + } // end lock scope + + sp<GraphicBuffer> graphicBuffer; + if (returnFlags & IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION) { + + usage |= GraphicBuffer::USAGE_HW_TEXTURE; + RefPtr<LayersIPCChannel> allocator = ImageBridgeChild::GetSingleton(); + GrallocTextureData* texData = GrallocTextureData::Create(IntSize(w,h), format, + gfx::BackendType::NONE, usage, + allocator); + if (!texData) { + ST_LOGE("dequeueBuffer: failed to alloc gralloc buffer"); + return -ENOMEM; + } + RefPtr<TextureClient> textureClient = new TextureClient(texData, TextureFlags::RECYCLE | TextureFlags::DEALLOCATE_CLIENT, allocator); + sp<GraphicBuffer> graphicBuffer = texData->GetGraphicBuffer(); + + { // Scope for the lock + Mutex::Autolock lock(mMutex); + + if (mAbandoned) { + ST_LOGE("dequeueBuffer: SurfaceTexture has been abandoned!"); + return NO_INIT; + } + + mSlots[buf].mGraphicBuffer = graphicBuffer; + mSlots[buf].mTextureClient = textureClient; + ST_LOGD("dequeueBuffer: returning slot=%d buf=%p ", buf, + mSlots[buf].mGraphicBuffer->handle); + //mSlots[*outBuf].mGraphicBuffer = graphicBuffer; + } + } + + ST_LOGV("dequeueBuffer: returning slot=%d buf=%p flags=%#x", *outBuf, + mSlots[*outBuf].mGraphicBuffer->handle, returnFlags); + + return returnFlags; +} + +status_t GonkBufferQueue::setSynchronousMode(bool enabled) { + ST_LOGV("setSynchronousMode: enabled=%d", enabled); + Mutex::Autolock lock(mMutex); + + if (mAbandoned) { + ST_LOGE("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) { + + Rect crop; + uint32_t transform; + int scalingMode; + int64_t timestamp; + sp<Fence> fence; + + input.deflate(×tamp, &crop, &scalingMode, &transform, &fence); + +#if ANDROID_VERSION >= 18 + if (fence == NULL) { + ST_LOGE("queueBuffer: fence is NULL"); + return BAD_VALUE; + } +#endif + + ST_LOGV("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)); + + sp<ConsumerListener> listener; + + { // scope for the lock + Mutex::Autolock lock(mMutex); + if (mAbandoned) { + ST_LOGE("queueBuffer: GonkBufferQueue has been abandoned!"); + return NO_INIT; + } + int maxBufferCount = getMaxBufferCountLocked(); + if (buf < 0 || buf >= maxBufferCount) { + ST_LOGE("queueBuffer: slot index out of range [0, %d]: %d", + maxBufferCount, buf); + return -EINVAL; + } else if (mSlots[buf].mBufferState != BufferSlot::DEQUEUED) { + ST_LOGE("queueBuffer: slot %d is not owned by the client " + "(state=%d)", buf, mSlots[buf].mBufferState); + return -EINVAL; + } else if (!mSlots[buf].mRequestBufferCalled) { + ST_LOGE("queueBuffer: slot %d was enqueued without requesting a " + "buffer", buf); + return -EINVAL; + } + + const sp<GraphicBuffer>& graphicBuffer(mSlots[buf].mGraphicBuffer); + Rect bufferRect(graphicBuffer->getWidth(), graphicBuffer->getHeight()); + Rect croppedCrop; + crop.intersect(bufferRect, &croppedCrop); + if (croppedCrop != crop) { + ST_LOGE("queueBuffer: crop rect is not contained within the " + "buffer in slot %d", buf); + return -EINVAL; + } + + if (mSynchronousMode) { + // In synchronous mode we queue all buffers in a FIFO. + mQueue.push_back(buf); + } else { + // In asynchronous mode we only keep the most recent buffer. + if (mQueue.empty()) { + mQueue.push_back(buf); + } else { + Fifo::iterator front(mQueue.begin()); + // buffer currently queued is freed + mSlots[*front].mBufferState = BufferSlot::FREE; + // and we record the new buffer index in the queued list + *front = buf; + } + } + // always signals that an additional frame should be consumed + // to handle max acquired buffer count reached case. + listener = mConsumerListener; + + mSlots[buf].mTimestamp = timestamp; + mSlots[buf].mCrop = crop; + mSlots[buf].mTransform = transform; + mSlots[buf].mFence = fence; + + switch (scalingMode) { + case NATIVE_WINDOW_SCALING_MODE_FREEZE: + case NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW: + case NATIVE_WINDOW_SCALING_MODE_SCALE_CROP: + break; + default: + ST_LOGE("unknown scaling mode: %d (ignoring)", scalingMode); + scalingMode = mSlots[buf].mScalingMode; + break; + } + + mSlots[buf].mBufferState = BufferSlot::QUEUED; + mSlots[buf].mScalingMode = scalingMode; + mFrameCounter++; + mSlots[buf].mFrameNumber = mFrameCounter; + + 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; +} + +#if ANDROID_VERSION == 17 +void GonkBufferQueue::cancelBuffer(int buf, sp<Fence> fence) { +#else +void GonkBufferQueue::cancelBuffer(int buf, const sp<Fence>& fence) { +#endif + + ST_LOGV("cancelBuffer: slot=%d", buf); + Mutex::Autolock lock(mMutex); + + if (mAbandoned) { + ST_LOGW("cancelBuffer: GonkBufferQueue has been abandoned!"); + return; + } + + int maxBufferCount = getMaxBufferCountLocked(); + if (buf < 0 || buf >= maxBufferCount) { + ST_LOGE("cancelBuffer: slot index out of range [0, %d]: %d", + maxBufferCount, buf); + return; + } else if (mSlots[buf].mBufferState != BufferSlot::DEQUEUED) { + ST_LOGE("cancelBuffer: slot %d is not owned by the client (state=%d)", + buf, mSlots[buf].mBufferState); + return; +#if ANDROID_VERSION >= 18 + } else if (fence == NULL) { + ST_LOGE("cancelBuffer: fence is NULL"); + return; +#endif + } + mSlots[buf].mBufferState = BufferSlot::FREE; + mSlots[buf].mFrameNumber = 0; + mSlots[buf].mFence = fence; + mDequeueCondition.broadcast(); +} + +status_t GonkBufferQueue::connect(int api, QueueBufferOutput* output) { + ST_LOGV("connect: api=%d", api); + Mutex::Autolock lock(mMutex); + + if (mAbandoned) { + ST_LOGE("connect: GonkBufferQueue has been abandoned!"); + return NO_INIT; + } + + if (mConsumerListener == NULL) { + ST_LOGE("connect: GonkBufferQueue has no consumer!"); + return NO_INIT; + } + + 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: + if (mConnectedApi != NO_CONNECTED_API) { + ST_LOGE("connect: already connected (cur=%d, req=%d)", + mConnectedApi, api); + err = -EINVAL; + } else { + mConnectedApi = api; + output->inflate(mDefaultWidth, mDefaultHeight, mTransformHint, + mQueue.size()); + } + break; + default: + err = -EINVAL; + break; + } + + mBufferHasBeenQueued = false; + + return err; +} + +status_t GonkBufferQueue::disconnect(int api) { + ST_LOGV("disconnect: api=%d", api); + + int err = NO_ERROR; + sp<ConsumerListener> 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 { + ST_LOGE("disconnect: connected to another api (cur=%d, req=%d)", + mConnectedApi, api); + err = -EINVAL; + } + break; + default: + ST_LOGE("disconnect: unknown API %d", api); + err = -EINVAL; + break; + } + } + + if (listener != NULL) { + listener->onBuffersReleased(); + } + + return err; +} + +void GonkBufferQueue::dumpToString(String8& result) const +{ + char buffer[1024]; + GonkBufferQueue::dumpToString(result, "", buffer, 1024); +} + +void GonkBufferQueue::dumpToString(String8& result, const char* prefix, + char* buffer, size_t SIZE) const +{ + Mutex::Autolock _l(mMutex); + + String8 fifo; + int fifoSize = 0; + Fifo::const_iterator i(mQueue.begin()); + while (i != mQueue.end()) { + snprintf(buffer, SIZE, "%02d ", *i++); + fifoSize++; + fifo.append(buffer); + } + + int maxBufferCount = getMaxBufferCountLocked(); + + snprintf(buffer, SIZE, + "%s-BufferQueue maxBufferCount=%d, mSynchronousMode=%d, default-size=[%dx%d], " + "default-format=%d, transform-hint=%02x, FIFO(%d)={%s}\n", + prefix, maxBufferCount, mSynchronousMode, mDefaultWidth, + mDefaultHeight, mDefaultBufferFormat, mTransformHint, + fifoSize, fifo.string()); + result.append(buffer); + + + 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; + + for (int i=0 ; i<maxBufferCount ; i++) { + const BufferSlot& slot(mSlots[i]); + snprintf(buffer, SIZE, + "%s%s[%02d] " + "state=%-8s, crop=[%d,%d,%d,%d], " + "xform=0x%02x, time=%#llx, scale=%s", + prefix, (slot.mBufferState == BufferSlot::ACQUIRED)?">":" ", i, + stateName(slot.mBufferState), + slot.mCrop.left, slot.mCrop.top, slot.mCrop.right, + slot.mCrop.bottom, slot.mTransform, slot.mTimestamp, + scalingModeName(slot.mScalingMode) + ); + result.append(buffer); + + const sp<GraphicBuffer>& buf(slot.mGraphicBuffer); + if (buf != NULL) { + snprintf(buffer, SIZE, + ", %p [%4ux%4u:%4u,%3X]", + buf->handle, buf->width, buf->height, buf->stride, + buf->format); + result.append(buffer); + } + 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) { + 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) { + ST_LOGE("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()) { + Fifo::iterator front(mQueue.begin()); + int buf = *front; + + // In android, when the buffer is aquired by BufferConsumer, + // BufferQueue releases a reference to the buffer and + // it's ownership moves to the BufferConsumer. + // In b2g, GonkBufferQueue continues to have a buffer ownership. + // It is necessary to free buffer via ImageBridgeChild. + + //if (mSlots[buf].mAcquireCalled) { + // buffer->mGraphicBuffer = NULL; + //} else { + // buffer->mGraphicBuffer = mSlots[buf].mGraphicBuffer; + //} + buffer->mGraphicBuffer = mSlots[buf].mGraphicBuffer; + buffer->mCrop = mSlots[buf].mCrop; + buffer->mTransform = mSlots[buf].mTransform; + buffer->mScalingMode = mSlots[buf].mScalingMode; + buffer->mFrameNumber = mSlots[buf].mFrameNumber; + buffer->mTimestamp = mSlots[buf].mTimestamp; + buffer->mBuf = buf; + buffer->mFence = mSlots[buf].mFence; + + mSlots[buf].mAcquireCalled = true; + mSlots[buf].mNeedsCleanupOnRelease = false; + mSlots[buf].mBufferState = BufferSlot::ACQUIRED; + mSlots[buf].mFence = Fence::NO_FENCE; + + mQueue.erase(front); + mDequeueCondition.broadcast(); + } else { + return NO_BUFFER_AVAILABLE; + } + + return NO_ERROR; +} + +status_t GonkBufferQueue::releaseBuffer(int buf, const sp<Fence>& fence) { + Mutex::Autolock _l(mMutex); + +#if ANDROID_VERSION == 17 + if (buf == INVALID_BUFFER_SLOT) { +#else + if (buf == INVALID_BUFFER_SLOT || fence == NULL) { +#endif + return BAD_VALUE; + } + + mSlots[buf].mFence = fence; + + // The buffer can now only be released if its in the acquired state + if (mSlots[buf].mBufferState == BufferSlot::ACQUIRED) { + mSlots[buf].mBufferState = BufferSlot::FREE; + } else if (mSlots[buf].mNeedsCleanupOnRelease) { + ST_LOGV("releasing a stale buf %d its state was %d", buf, mSlots[buf].mBufferState); + mSlots[buf].mNeedsCleanupOnRelease = false; + return STALE_BUFFER_SLOT; + } else { + ST_LOGE("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<ConsumerListener>& consumerListener) { + ST_LOGV("consumerConnect"); + Mutex::Autolock lock(mMutex); + + if (mAbandoned) { + ST_LOGE("consumerConnect: GonkBufferQueue has been abandoned!"); + return NO_INIT; + } + if (consumerListener == NULL) { + ST_LOGE("consumerConnect: consumerListener may not be NULL"); + return BAD_VALUE; + } + + mConsumerListener = consumerListener; + + return NO_ERROR; +} + +status_t GonkBufferQueue::consumerDisconnect() { + ST_LOGV("consumerDisconnect"); + Mutex::Autolock lock(mMutex); + + if (mConsumerListener == NULL) { + ST_LOGE("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) { + ST_LOGV("getReleasedBuffers"); + Mutex::Autolock lock(mMutex); + + if (mAbandoned) { + ST_LOGE("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; + } + } + *slotMask = mask; + + ST_LOGV("getReleasedBuffers: returning mask %#x", mask); + return NO_ERROR; +} + +status_t GonkBufferQueue::setDefaultBufferSize(uint32_t w, uint32_t h) +{ + ST_LOGV("setDefaultBufferSize: w=%d, h=%d", w, h); + if (!w || !h) { + ST_LOGE("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) { + Mutex::Autolock lock(mMutex); + return setDefaultMaxBufferCountLocked(bufferCount); +} + +status_t GonkBufferQueue::setMaxAcquiredBufferCount(int maxAcquiredBuffers) { + Mutex::Autolock lock(mMutex); + if (maxAcquiredBuffers < 1 || maxAcquiredBuffers > MAX_MAX_ACQUIRED_BUFFERS) { + ST_LOGE("setMaxAcquiredBufferCount: invalid count specified: %d", + maxAcquiredBuffers); + return BAD_VALUE; + } + if (mConnectedApi != NO_CONNECTED_API) { + return INVALID_OPERATION; + } + mMaxAcquiredBufferCount = maxAcquiredBuffers; + return NO_ERROR; +} + +int GonkBufferQueue::getMinMaxBufferCountLocked() const { + return getMinUndequeuedBufferCountLocked() + 1; +} + +int GonkBufferQueue::getMinUndequeuedBufferCountLocked() const { + return mSynchronousMode ? mMaxAcquiredBufferCount : + mMaxAcquiredBufferCount + 1; +} + +int GonkBufferQueue::getMaxBufferCountLocked() const { + int minMaxBufferCount = getMinMaxBufferCountLocked(); + + 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; +} + +GonkBufferQueue::ProxyConsumerListener::ProxyConsumerListener( + const wp<GonkBufferQueue::ConsumerListener>& consumerListener): + mConsumerListener(consumerListener) {} + +GonkBufferQueue::ProxyConsumerListener::~ProxyConsumerListener() {} + +void GonkBufferQueue::ProxyConsumerListener::onFrameAvailable() { + sp<GonkBufferQueue::ConsumerListener> listener(mConsumerListener.promote()); + if (listener != NULL) { + listener->onFrameAvailable(); + } +} + +void GonkBufferQueue::ProxyConsumerListener::onBuffersReleased() { + sp<GonkBufferQueue::ConsumerListener> listener(mConsumerListener.promote()); + if (listener != NULL) { + listener->onBuffersReleased(); + } +} + +}; // namespace android |