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authorwolfbeast <mcwerewolf@gmail.com>2018-05-12 11:09:44 +0200
committerwolfbeast <mcwerewolf@gmail.com>2018-05-12 11:09:44 +0200
commitcfe5ef4ac7cd59f094b538252161ad74223c47da (patch)
treee5c0ee7e70db84bd2bfc6062784006769e9df730 /widget/gonk/nativewindow/GonkBufferQueueKK.h
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Remove Gonk build directories
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diff --git a/widget/gonk/nativewindow/GonkBufferQueueKK.h b/widget/gonk/nativewindow/GonkBufferQueueKK.h
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-/*
- * 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.
- */
-
-#ifndef NATIVEWINDOW_GONKBUFFERQUEUE_KK_H
-#define NATIVEWINDOW_GONKBUFFERQUEUE_KK_H
-
-#include <gui/IConsumerListener.h>
-#include <gui/IGraphicBufferAlloc.h>
-#include <gui/IGraphicBufferProducer.h>
-#include "IGonkGraphicBufferConsumer.h"
-
-#include <ui/Fence.h>
-#include <ui/GraphicBuffer.h>
-
-#include <utils/String8.h>
-#include <utils/Vector.h>
-#include <utils/threads.h>
-
-#include "mozilla/layers/LayersSurfaces.h"
-#include "mozilla/layers/TextureClient.h"
-
-namespace android {
-// ----------------------------------------------------------------------------
-
-class GonkBufferQueue : public BnGraphicBufferProducer,
- public BnGonkGraphicBufferConsumer,
- private IBinder::DeathRecipient
-{
- typedef mozilla::layers::TextureClient TextureClient;
-
-public:
- enum { MIN_UNDEQUEUED_BUFFERS = 2 };
- enum { NUM_BUFFER_SLOTS = 32 };
- enum { NO_CONNECTED_API = 0 };
- enum { INVALID_BUFFER_SLOT = -1 };
- enum { STALE_BUFFER_SLOT = 1, NO_BUFFER_AVAILABLE, PRESENT_LATER };
-
- // When in async mode we reserve two slots in order to guarantee that the
- // producer and consumer can run asynchronously.
- enum { MAX_MAX_ACQUIRED_BUFFERS = NUM_BUFFER_SLOTS - 2 };
-
- // for backward source compatibility
- typedef ::android::ConsumerListener ConsumerListener;
-
- // ProxyConsumerListener is a ConsumerListener implementation that keeps a weak
- // reference to the actual consumer object. It forwards all calls to that
- // consumer object so long as it exists.
- //
- // This class exists to avoid having a circular reference between the
- // GonkBufferQueue object and the consumer object. The reason this can't be a weak
- // reference in the GonkBufferQueue class is because we're planning to expose the
- // consumer side of a GonkBufferQueue as a binder interface, which doesn't support
- // weak references.
- class ProxyConsumerListener : public BnConsumerListener {
- public:
- ProxyConsumerListener(const wp<ConsumerListener>& consumerListener);
- virtual ~ProxyConsumerListener();
- virtual void onFrameAvailable();
- virtual void onBuffersReleased();
- private:
- // mConsumerListener is a weak reference to the IConsumerListener. This is
- // the raison d'etre of ProxyConsumerListener.
- wp<ConsumerListener> mConsumerListener;
- };
-
-
- // BufferQueue manages a pool of gralloc memory slots to be used by
- // producers and consumers. allocator is used to allocate all the
- // needed gralloc buffers.
- GonkBufferQueue(bool allowSynchronousMode = true,
- const sp<IGraphicBufferAlloc>& allocator = NULL);
- virtual ~GonkBufferQueue();
-
- /*
- * IBinder::DeathRecipient interface
- */
-
- virtual void binderDied(const wp<IBinder>& who);
-
- /*
- * IGraphicBufferProducer interface
- */
-
- // Query native window attributes. The "what" values are enumerated in
- // window.h (e.g. NATIVE_WINDOW_FORMAT).
- virtual int query(int what, int* value);
-
- // setBufferCount updates the number of available buffer slots. If this
- // method succeeds, buffer slots will be both unallocated and owned by
- // the GonkBufferQueue object (i.e. they are not owned by the producer or
- // consumer).
- //
- // This will fail if the producer has dequeued any buffers, or if
- // bufferCount is invalid. bufferCount must generally be a value
- // between the minimum undequeued buffer count and NUM_BUFFER_SLOTS
- // (inclusive). It may also be set to zero (the default) to indicate
- // that the producer does not wish to set a value. The minimum value
- // can be obtained by calling query(NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS,
- // ...).
- //
- // This may only be called by the producer. The consumer will be told
- // to discard buffers through the onBuffersReleased callback.
- virtual status_t setBufferCount(int bufferCount);
-
- // requestBuffer returns the GraphicBuffer for slot N.
- //
- // In normal operation, this is called the first time slot N is returned
- // by dequeueBuffer. It must be called again if dequeueBuffer returns
- // flags indicating that previously-returned buffers are no longer valid.
- virtual status_t requestBuffer(int slot, sp<GraphicBuffer>* buf);
-
- // dequeueBuffer gets the next buffer slot index for the producer to use.
- // If a buffer slot is available then that slot index is written to the
- // location pointed to by the buf argument and a status of OK is returned.
- // If no slot is available then a status of -EBUSY is returned and buf is
- // unmodified.
- //
- // The fence parameter will be updated to hold the fence associated with
- // the buffer. The contents of the buffer must not be overwritten until the
- // fence signals. If the fence is Fence::NO_FENCE, the buffer may be
- // written immediately.
- //
- // The width and height parameters must be no greater than the minimum of
- // GL_MAX_VIEWPORT_DIMS and GL_MAX_TEXTURE_SIZE (see: glGetIntegerv).
- // An error due to invalid dimensions might not be reported until
- // updateTexImage() is called. If width and height are both zero, the
- // default values specified by setDefaultBufferSize() are used instead.
- //
- // The pixel formats are enumerated in graphics.h, e.g.
- // HAL_PIXEL_FORMAT_RGBA_8888. If the format is 0, the default format
- // will be used.
- //
- // The usage argument specifies gralloc buffer usage flags. The values
- // are enumerated in gralloc.h, e.g. GRALLOC_USAGE_HW_RENDER. These
- // will be merged with the usage flags specified by setConsumerUsageBits.
- //
- // The return value may be a negative error value or a non-negative
- // collection of flags. If the flags are set, the return values are
- // valid, but additional actions must be performed.
- //
- // If IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION is set, the
- // producer must discard cached GraphicBuffer references for the slot
- // returned in buf.
- // If IGraphicBufferProducer::RELEASE_ALL_BUFFERS is set, the producer
- // must discard cached GraphicBuffer references for all slots.
- //
- // In both cases, the producer will need to call requestBuffer to get a
- // GraphicBuffer handle for the returned slot.
- virtual status_t dequeueBuffer(int *buf, sp<Fence>* fence, bool async,
- uint32_t width, uint32_t height, uint32_t format, uint32_t usage);
-
- // queueBuffer returns a filled buffer to the GonkBufferQueue.
- //
- // Additional data is provided in the QueueBufferInput struct. Notably,
- // a timestamp must be provided for the buffer. The timestamp is in
- // nanoseconds, and must be monotonically increasing. Its other semantics
- // (zero point, etc) are producer-specific and should be documented by the
- // producer.
- //
- // The caller may provide a fence that signals when all rendering
- // operations have completed. Alternatively, NO_FENCE may be used,
- // indicating that the buffer is ready immediately.
- //
- // Some values are returned in the output struct: the current settings
- // for default width and height, the current transform hint, and the
- // number of queued buffers.
- virtual status_t queueBuffer(int buf,
- const QueueBufferInput& input, QueueBufferOutput* output);
-
- // cancelBuffer returns a dequeued buffer to the GonkBufferQueue, but doesn't
- // queue it for use by the consumer.
- //
- // The buffer will not be overwritten until the fence signals. The fence
- // will usually be the one obtained from dequeueBuffer.
- virtual void cancelBuffer(int buf, const sp<Fence>& fence);
-
- // setSynchronousMode sets whether dequeueBuffer is synchronous or
- // asynchronous. In synchronous mode, dequeueBuffer blocks until
- // a buffer is available, the currently bound buffer can be dequeued and
- // queued buffers will be acquired in order. In asynchronous mode,
- // a queued buffer may be replaced by a subsequently queued buffer.
- //
- // The default mode is synchronous.
- // This should be called only during initialization.
- virtual status_t setSynchronousMode(bool enabled);
-
- // connect attempts to connect a producer API to the GonkBufferQueue. This
- // must be called before any other IGraphicBufferProducer methods are
- // called except for getAllocator. A consumer must already be connected.
- //
- // This method will fail if connect was previously called on the
- // GonkBufferQueue and no corresponding disconnect call was made (i.e. if
- // it's still connected to a producer).
- //
- // APIs are enumerated in window.h (e.g. NATIVE_WINDOW_API_CPU).
- virtual status_t connect(const sp<IBinder>& token,
- int api, bool producerControlledByApp, QueueBufferOutput* output);
-
- // disconnect attempts to disconnect a producer API from the GonkBufferQueue.
- // Calling this method will cause any subsequent calls to other
- // IGraphicBufferProducer methods to fail except for getAllocator and connect.
- // Successfully calling connect after this will allow the other methods to
- // succeed again.
- //
- // This method will fail if the the GonkBufferQueue is not currently
- // connected to the specified producer API.
- virtual status_t disconnect(int api);
-
- /*
- * IGraphicBufferConsumer interface
- */
-
- // acquireBuffer attempts to acquire ownership of the next pending buffer in
- // the GonkBufferQueue. If no buffer is pending then it returns -EINVAL. If a
- // buffer is successfully acquired, the information about the buffer is
- // returned in BufferItem. If the buffer returned had previously been
- // acquired then the BufferItem::mGraphicBuffer field of buffer is set to
- // NULL and it is assumed that the consumer still holds a reference to the
- // buffer.
- //
- // If presentWhen is nonzero, it indicates the time when the buffer will
- // be displayed on screen. If the buffer's timestamp is farther in the
- // future, the buffer won't be acquired, and PRESENT_LATER will be
- // returned. The presentation time is in nanoseconds, and the time base
- // is CLOCK_MONOTONIC.
- virtual status_t acquireBuffer(BufferItem *buffer, nsecs_t presentWhen);
-
- // releaseBuffer releases a buffer slot from the consumer back to the
- // GonkBufferQueue. This may be done while the buffer's contents are still
- // being accessed. The fence will signal when the buffer is no longer
- // in use. frameNumber is used to indentify the exact buffer returned.
- //
- // If releaseBuffer returns STALE_BUFFER_SLOT, then the consumer must free
- // any references to the just-released buffer that it might have, as if it
- // had received a onBuffersReleased() call with a mask set for the released
- // buffer.
- //
- // Note that the dependencies on EGL will be removed once we switch to using
- // the Android HW Sync HAL.
- virtual status_t releaseBuffer(int buf, uint64_t frameNumber,
- const sp<Fence>& releaseFence);
-
- // consumerConnect connects a consumer to the GonkBufferQueue. Only one
- // consumer may be connected, and when that consumer disconnects the
- // GonkBufferQueue is placed into the "abandoned" state, causing most
- // interactions with the GonkBufferQueue by the producer to fail.
- // controlledByApp indicates whether the consumer is controlled by
- // the application.
- //
- // consumer may not be NULL.
- virtual status_t consumerConnect(const sp<IConsumerListener>& consumer, bool controlledByApp);
-
- // consumerDisconnect disconnects a consumer from the GonkBufferQueue. All
- // buffers will be freed and the GonkBufferQueue is placed in the "abandoned"
- // state, causing most interactions with the GonkBufferQueue by the producer to
- // fail.
- virtual status_t consumerDisconnect();
-
- // getReleasedBuffers sets the value pointed to by slotMask to a bit mask
- // indicating which buffer slots have been released by the GonkBufferQueue
- // but have not yet been released by the consumer.
- //
- // This should be called from the onBuffersReleased() callback.
- virtual status_t getReleasedBuffers(uint32_t* slotMask);
-
- // setDefaultBufferSize is used to set the size of buffers returned by
- // dequeueBuffer when a width and height of zero is requested. Default
- // is 1x1.
- virtual status_t setDefaultBufferSize(uint32_t w, uint32_t h);
-
- // setDefaultMaxBufferCount sets the default value for the maximum buffer
- // count (the initial default is 2). If the producer has requested a
- // buffer count using setBufferCount, the default buffer count will only
- // take effect if the producer sets the count back to zero.
- //
- // The count must be between 2 and NUM_BUFFER_SLOTS, inclusive.
- virtual status_t setDefaultMaxBufferCount(int bufferCount);
-
- // disableAsyncBuffer disables the extra buffer used in async mode
- // (when both producer and consumer have set their "isControlledByApp"
- // flag) and has dequeueBuffer() return WOULD_BLOCK instead.
- //
- // This can only be called before consumerConnect().
- virtual status_t disableAsyncBuffer();
-
- // setMaxAcquiredBufferCount sets the maximum number of buffers that can
- // be acquired by the consumer at one time (default 1). This call will
- // fail if a producer is connected to the GonkBufferQueue.
- virtual status_t setMaxAcquiredBufferCount(int maxAcquiredBuffers);
-
- // setConsumerName sets the name used in logging
- virtual void setConsumerName(const String8& name);
-
- // setDefaultBufferFormat allows the GonkBufferQueue to create
- // GraphicBuffers of a defaultFormat if no format is specified
- // in dequeueBuffer. Formats are enumerated in graphics.h; the
- // initial default is HAL_PIXEL_FORMAT_RGBA_8888.
- virtual status_t setDefaultBufferFormat(uint32_t defaultFormat);
-
- // setConsumerUsageBits will turn on additional usage bits for dequeueBuffer.
- // These are merged with the bits passed to dequeueBuffer. The values are
- // enumerated in gralloc.h, e.g. GRALLOC_USAGE_HW_RENDER; the default is 0.
- virtual status_t setConsumerUsageBits(uint32_t usage);
-
- // setTransformHint bakes in rotation to buffers so overlays can be used.
- // The values are enumerated in window.h, e.g.
- // NATIVE_WINDOW_TRANSFORM_ROT_90. The default is 0 (no transform).
- virtual status_t setTransformHint(uint32_t hint);
-
- // dump our state in a String
- virtual void dumpToString(String8& result, const char* prefix) const;
-
- already_AddRefed<TextureClient> getTextureClientFromBuffer(ANativeWindowBuffer* buffer);
-
- int getSlotFromTextureClientLocked(TextureClient* client) const;
-
-private:
- // freeBufferLocked frees the GraphicBuffer and sync resources for the
- // given slot.
- //void freeBufferLocked(int index);
-
- // freeAllBuffersLocked frees the GraphicBuffer and sync resources for
- // all slots.
- void freeAllBuffersLocked();
-
- // setDefaultMaxBufferCountLocked sets the maximum number of buffer slots
- // that will be used if the producer does not override the buffer slot
- // count. The count must be between 2 and NUM_BUFFER_SLOTS, inclusive.
- // The initial default is 2.
- status_t setDefaultMaxBufferCountLocked(int count);
-
- // getMinUndequeuedBufferCount returns the minimum number of buffers
- // that must remain in a state other than DEQUEUED.
- // The async parameter tells whether we're in asynchronous mode.
- int getMinUndequeuedBufferCount(bool async) const;
-
- // getMinBufferCountLocked returns the minimum number of buffers allowed
- // given the current GonkBufferQueue state.
- // The async parameter tells whether we're in asynchronous mode.
- int getMinMaxBufferCountLocked(bool async) const;
-
- // getMaxBufferCountLocked returns the maximum number of buffers that can
- // be allocated at once. This value depends upon the following member
- // variables:
- //
- // mDequeueBufferCannotBlock
- // mMaxAcquiredBufferCount
- // mDefaultMaxBufferCount
- // mOverrideMaxBufferCount
- // async parameter
- //
- // Any time one of these member variables is changed while a producer is
- // connected, mDequeueCondition must be broadcast.
- int getMaxBufferCountLocked(bool async) const;
-
- // stillTracking returns true iff the buffer item is still being tracked
- // in one of the slots.
- bool stillTracking(const BufferItem *item) const;
-
- struct BufferSlot {
-
- BufferSlot()
- : mBufferState(BufferSlot::FREE),
- mRequestBufferCalled(false),
- mFrameNumber(0),
- mAcquireCalled(false),
- mNeedsCleanupOnRelease(false) {
- }
-
- // mGraphicBuffer points to the buffer allocated for this slot or is NULL
- // if no buffer has been allocated.
- sp<GraphicBuffer> mGraphicBuffer;
-
- // mTextureClient is a thin abstraction over remotely allocated GraphicBuffer.
- RefPtr<TextureClient> mTextureClient;
-
- // BufferState represents the different states in which a buffer slot
- // can be. All slots are initially FREE.
- enum BufferState {
- // FREE indicates that the buffer is available to be dequeued
- // by the producer. The buffer may be in use by the consumer for
- // a finite time, so the buffer must not be modified until the
- // associated fence is signaled.
- //
- // The slot is "owned" by GonkBufferQueue. It transitions to DEQUEUED
- // when dequeueBuffer is called.
- FREE = 0,
-
- // DEQUEUED indicates that the buffer has been dequeued by the
- // producer, but has not yet been queued or canceled. The
- // producer may modify the buffer's contents as soon as the
- // associated ready fence is signaled.
- //
- // The slot is "owned" by the producer. It can transition to
- // QUEUED (via queueBuffer) or back to FREE (via cancelBuffer).
- DEQUEUED = 1,
-
- // QUEUED indicates that the buffer has been filled by the
- // producer and queued for use by the consumer. The buffer
- // contents may continue to be modified for a finite time, so
- // the contents must not be accessed until the associated fence
- // is signaled.
- //
- // The slot is "owned" by GonkBufferQueue. It can transition to
- // ACQUIRED (via acquireBuffer) or to FREE (if another buffer is
- // queued in asynchronous mode).
- QUEUED = 2,
-
- // ACQUIRED indicates that the buffer has been acquired by the
- // consumer. As with QUEUED, the contents must not be accessed
- // by the consumer until the fence is signaled.
- //
- // The slot is "owned" by the consumer. It transitions to FREE
- // when releaseBuffer is called.
- ACQUIRED = 3
- };
-
- // mBufferState is the current state of this buffer slot.
- BufferState mBufferState;
-
- // mRequestBufferCalled is used for validating that the producer did
- // call requestBuffer() when told to do so. Technically this is not
- // needed but useful for debugging and catching producer bugs.
- bool mRequestBufferCalled;
-
- // mFrameNumber is the number of the queued frame for this slot. This
- // is used to dequeue buffers in LRU order (useful because buffers
- // may be released before their release fence is signaled).
- uint64_t mFrameNumber;
-
- // mFence is a fence which will signal when work initiated by the
- // previous owner of the buffer is finished. When the buffer is FREE,
- // the fence indicates when the consumer has finished reading
- // from the buffer, or when the producer has finished writing if it
- // called cancelBuffer after queueing some writes. When the buffer is
- // QUEUED, it indicates when the producer has finished filling the
- // buffer. When the buffer is DEQUEUED or ACQUIRED, the fence has been
- // passed to the consumer or producer along with ownership of the
- // buffer, and mFence is set to NO_FENCE.
- sp<Fence> mFence;
-
- // Indicates whether this buffer has been seen by a consumer yet
- bool mAcquireCalled;
-
- // Indicates whether this buffer needs to be cleaned up by the
- // consumer. This is set when a buffer in ACQUIRED state is freed.
- // It causes releaseBuffer to return STALE_BUFFER_SLOT.
- bool mNeedsCleanupOnRelease;
- };
-
- // mSlots is the array of buffer slots that must be mirrored on the
- // producer side. This allows buffer ownership to be transferred between
- // the producer and consumer without sending a GraphicBuffer over binder.
- // The entire array is initialized to NULL at construction time, and
- // buffers are allocated for a slot when requestBuffer is called with
- // that slot's index.
- BufferSlot mSlots[NUM_BUFFER_SLOTS];
-
- // mDefaultWidth holds the default width of allocated buffers. It is used
- // in dequeueBuffer() if a width and height of zero is specified.
- uint32_t mDefaultWidth;
-
- // mDefaultHeight holds the default height of allocated buffers. It is used
- // in dequeueBuffer() if a width and height of zero is specified.
- uint32_t mDefaultHeight;
-
- // mMaxAcquiredBufferCount is the number of buffers that the consumer may
- // acquire at one time. It defaults to 1 and can be changed by the
- // consumer via the setMaxAcquiredBufferCount method, but this may only be
- // done when no producer is connected to the GonkBufferQueue.
- //
- // This value is used to derive the value returned for the
- // MIN_UNDEQUEUED_BUFFERS query by the producer.
- int mMaxAcquiredBufferCount;
-
- // mDefaultMaxBufferCount is the default limit on the number of buffers
- // that will be allocated at one time. This default limit is set by the
- // consumer. The limit (as opposed to the default limit) may be
- // overridden by the producer.
- int mDefaultMaxBufferCount;
-
- // mOverrideMaxBufferCount is the limit on the number of buffers that will
- // be allocated at one time. This value is set by the image producer by
- // calling setBufferCount. The default is zero, which means the producer
- // doesn't care about the number of buffers in the pool. In that case
- // mDefaultMaxBufferCount is used as the limit.
- int mOverrideMaxBufferCount;
-
- // mGraphicBufferAlloc is the connection to SurfaceFlinger that is used to
- // allocate new GraphicBuffer objects.
- sp<IGraphicBufferAlloc> mGraphicBufferAlloc;
-
- // mConsumerListener is used to notify the connected consumer of
- // asynchronous events that it may wish to react to. It is initially set
- // to NULL and is written by consumerConnect and consumerDisconnect.
- sp<IConsumerListener> mConsumerListener;
-
- // mSynchronousMode whether we're in synchronous mode or not
- bool mSynchronousMode;
-
- // mConsumerControlledByApp whether the connected consumer is controlled by the
- // application.
- bool mConsumerControlledByApp;
-
- // mDequeueBufferCannotBlock whether dequeueBuffer() isn't allowed to block.
- // this flag is set during connect() when both consumer and producer are controlled
- // by the application.
- bool mDequeueBufferCannotBlock;
-
- // mUseAsyncBuffer whether an extra buffer is used in async mode to prevent
- // dequeueBuffer() from ever blocking.
- bool mUseAsyncBuffer;
-
- // mConnectedApi indicates the producer API that is currently connected
- // to this GonkBufferQueue. It defaults to NO_CONNECTED_API (= 0), and gets
- // updated by the connect and disconnect methods.
- int mConnectedApi;
-
- // mDequeueCondition condition used for dequeueBuffer in synchronous mode
- mutable Condition mDequeueCondition;
-
- // mQueue is a FIFO of queued buffers used in synchronous mode
- typedef Vector<BufferItem> Fifo;
- Fifo mQueue;
-
- // mAbandoned indicates that the GonkBufferQueue will no longer be used to
- // consume image buffers pushed to it using the IGraphicBufferProducer
- // interface. It is initialized to false, and set to true in the
- // consumerDisconnect method. A GonkBufferQueue that has been abandoned will
- // return the NO_INIT error from all IGraphicBufferProducer methods
- // capable of returning an error.
- bool mAbandoned;
-
- // mConsumerName is a string used to identify the GonkBufferQueue in log
- // messages. It is set by the setConsumerName method.
- String8 mConsumerName;
-
- // mMutex is the mutex used to prevent concurrent access to the member
- // variables of GonkBufferQueue objects. It must be locked whenever the
- // member variables are accessed.
- mutable Mutex mMutex;
-
- // mFrameCounter is the free running counter, incremented on every
- // successful queueBuffer call, and buffer allocation.
- uint64_t mFrameCounter;
-
- // mBufferHasBeenQueued is true once a buffer has been queued. It is
- // reset when something causes all buffers to be freed (e.g. changing the
- // buffer count).
- bool mBufferHasBeenQueued;
-
- // mDefaultBufferFormat can be set so it will override
- // the buffer format when it isn't specified in dequeueBuffer
- uint32_t mDefaultBufferFormat;
-
- // mConsumerUsageBits contains flags the consumer wants for GraphicBuffers
- uint32_t mConsumerUsageBits;
-
- // mTransformHint is used to optimize for screen rotations
- uint32_t mTransformHint;
-
- // mConnectedProducerToken is used to set a binder death notification on the producer
- sp<IBinder> mConnectedProducerToken;
-};
-
-// ----------------------------------------------------------------------------
-}; // namespace android
-
-#endif // ANDROID_GUI_BUFFERQUEUE_H