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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/GonkBufferQueueLL/GonkBufferQueueProducer.h
parent28cf922aa9af4d4b8e0a3ce91dc1270a55986909 (diff)
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Remove Gonk build directories
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diff --git a/widget/gonk/nativewindow/GonkBufferQueueLL/GonkBufferQueueProducer.h b/widget/gonk/nativewindow/GonkBufferQueueLL/GonkBufferQueueProducer.h
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-/*
- * Copyright 2014 The Android Open Source Project
- * Copyright (C) 2014 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_GONKBUFFERQUEUEPRODUCER_LL_H
-#define NATIVEWINDOW_GONKBUFFERQUEUEPRODUCER_LL_H
-
-#include "GonkBufferQueueDefs.h"
-#include <gui/IGraphicBufferProducer.h>
-
-namespace android {
-
-class GonkBufferQueueProducer : public BnGraphicBufferProducer,
- private IBinder::DeathRecipient {
-public:
- friend class GonkBufferQueue; // Needed to access binderDied
-
- GonkBufferQueueProducer(const sp<GonkBufferQueueCore>& core);
- virtual ~GonkBufferQueueProducer();
-
- // 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- // flags indicating that previously-returned buffers are no longer valid.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);
-
- // 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 (exclusive) 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);
-
- // 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 outFence 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 *outSlot, sp<Fence>* outFence, bool async,
- uint32_t width, uint32_t height, uint32_t format, uint32_t usage);
-
- // See IGraphicBufferProducer::detachBuffer
- virtual status_t detachBuffer(int slot);
-
- // See IGraphicBufferProducer::detachNextBuffer
- virtual status_t detachNextBuffer(sp<GraphicBuffer>* outBuffer,
- sp<Fence>* outFence);
-
- // See IGraphicBufferProducer::attachBuffer
- virtual status_t attachBuffer(int* outSlot, const sp<GraphicBuffer>& buffer);
-
- // 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 slot,
- 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 slot, const sp<Fence>& fence);
-
- // Query native window attributes. The "what" values are enumerated in
- // window.h (e.g. NATIVE_WINDOW_FORMAT).
- virtual int query(int what, int* outValue);
-
- // 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<IProducerListener>& listener,
- 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);
-
- // Attaches a sideband buffer stream to the IGraphicBufferProducer.
- //
- // A sideband stream is a device-specific mechanism for passing buffers
- // from the producer to the consumer without using dequeueBuffer/
- // queueBuffer. If a sideband stream is present, the consumer can choose
- // whether to acquire buffers from the sideband stream or from the queued
- // buffers.
- //
- // Passing NULL or a different stream handle will detach the previous
- // handle if any.
- virtual status_t setSidebandStream(const sp<NativeHandle>& stream);
-
- // See IGraphicBufferProducer::allocateBuffers
- virtual void allocateBuffers(bool async, uint32_t width, uint32_t height,
- uint32_t format, uint32_t usage);
-
- // 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);
-
-private:
- // This is required by the IBinder::DeathRecipient interface
- virtual void binderDied(const wp<IBinder>& who);
-
- // waitForFreeSlotThenRelock finds the oldest slot in the FREE state. It may
- // block if there are no available slots and we are not in non-blocking
- // mode (producer and consumer controlled by the application). If it blocks,
- // it will release mCore->mMutex while blocked so that other operations on
- // the GonkBufferQueue may succeed.
- status_t waitForFreeSlotThenRelock(const char* caller, bool async,
- int* found, status_t* returnFlags) const;
-
- sp<GonkBufferQueueCore> mCore;
-
- // This references mCore->mSlots. Lock mCore->mMutex while accessing.
- GonkBufferQueueDefs::SlotsType& mSlots;
-
- // This is a cached copy of the name stored in the GonkBufferQueueCore.
- // It's updated during connect and dequeueBuffer (which should catch
- // most updates).
- String8 mConsumerName;
-
- // mSynchronousMode whether we're in synchronous mode or not
- bool mSynchronousMode;
-
- uint32_t mStickyTransform;
-
-}; // class GonkBufferQueueProducer
-
-} // namespace android
-
-#endif