| /* | 
 |  * Copyright (C) 2010 The Android Open Source Project | 
 |  * | 
 |  * Licensed under the Apache License, Version 2.0 (the "License"); | 
 |  * you may not use this file except in compliance with the License. | 
 |  * You may obtain a copy of the License at | 
 |  * | 
 |  *      http://www.apache.org/licenses/LICENSE-2.0 | 
 |  * | 
 |  * Unless required by applicable law or agreed to in writing, software | 
 |  * distributed under the License is distributed on an "AS IS" BASIS, | 
 |  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
 |  * See the License for the specific language governing permissions and | 
 |  * limitations under the License. | 
 |  */ | 
 |  | 
 | #include <stdint.h> | 
 | #include <sys/types.h> | 
 |  | 
 | #include <utils/Errors.h> | 
 | #include <utils/NativeHandle.h> | 
 | #include <utils/RefBase.h> | 
 | #include <utils/Timers.h> | 
 | #include <utils/Vector.h> | 
 |  | 
 | #include <binder/Parcel.h> | 
 | #include <binder/IInterface.h> | 
 |  | 
 | #include <gui/IGraphicBufferProducer.h> | 
 | #include <gui/IProducerListener.h> | 
 |  | 
 | namespace android { | 
 | // ---------------------------------------------------------------------------- | 
 |  | 
 | enum { | 
 |     REQUEST_BUFFER = IBinder::FIRST_CALL_TRANSACTION, | 
 |     DEQUEUE_BUFFER, | 
 |     DETACH_BUFFER, | 
 |     DETACH_NEXT_BUFFER, | 
 |     ATTACH_BUFFER, | 
 |     QUEUE_BUFFER, | 
 |     CANCEL_BUFFER, | 
 |     QUERY, | 
 |     CONNECT, | 
 |     DISCONNECT, | 
 |     SET_SIDEBAND_STREAM, | 
 |     ALLOCATE_BUFFERS, | 
 |     ALLOW_ALLOCATION, | 
 |     SET_GENERATION_NUMBER, | 
 |     GET_CONSUMER_NAME, | 
 |     SET_MAX_DEQUEUED_BUFFER_COUNT, | 
 |     SET_ASYNC_MODE, | 
 |     SET_SHARED_BUFFER_MODE, | 
 |     SET_AUTO_REFRESH, | 
 |     SET_DEQUEUE_TIMEOUT, | 
 |     GET_LAST_QUEUED_BUFFER, | 
 |     GET_FRAME_TIMESTAMPS, | 
 |     GET_UNIQUE_ID | 
 | }; | 
 |  | 
 | class BpGraphicBufferProducer : public BpInterface<IGraphicBufferProducer> | 
 | { | 
 | public: | 
 |     explicit BpGraphicBufferProducer(const sp<IBinder>& impl) | 
 |         : BpInterface<IGraphicBufferProducer>(impl) | 
 |     { | 
 |     } | 
 |  | 
 |     virtual ~BpGraphicBufferProducer(); | 
 |  | 
 |     virtual status_t requestBuffer(int bufferIdx, sp<GraphicBuffer>* buf) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeInt32(bufferIdx); | 
 |         status_t result =remote()->transact(REQUEST_BUFFER, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         bool nonNull = reply.readInt32(); | 
 |         if (nonNull) { | 
 |             *buf = new GraphicBuffer(); | 
 |             result = reply.read(**buf); | 
 |             if(result != NO_ERROR) { | 
 |                 (*buf).clear(); | 
 |                 return result; | 
 |             } | 
 |         } | 
 |         result = reply.readInt32(); | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual status_t setMaxDequeuedBufferCount(int maxDequeuedBuffers) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken( | 
 |                 IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeInt32(maxDequeuedBuffers); | 
 |         status_t result = remote()->transact(SET_MAX_DEQUEUED_BUFFER_COUNT, | 
 |                 data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         result = reply.readInt32(); | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual status_t setAsyncMode(bool async) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken( | 
 |                 IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeInt32(async); | 
 |         status_t result = remote()->transact(SET_ASYNC_MODE, | 
 |                 data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         result = reply.readInt32(); | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual status_t dequeueBuffer(int *buf, sp<Fence>* fence, uint32_t width, | 
 |             uint32_t height, PixelFormat format, uint32_t usage) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeUint32(width); | 
 |         data.writeUint32(height); | 
 |         data.writeInt32(static_cast<int32_t>(format)); | 
 |         data.writeUint32(usage); | 
 |         status_t result = remote()->transact(DEQUEUE_BUFFER, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         *buf = reply.readInt32(); | 
 |         bool nonNull = reply.readInt32(); | 
 |         if (nonNull) { | 
 |             *fence = new Fence(); | 
 |             result = reply.read(**fence); | 
 |             if (result != NO_ERROR) { | 
 |                 fence->clear(); | 
 |                 return result; | 
 |             } | 
 |         } | 
 |         result = reply.readInt32(); | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual status_t detachBuffer(int slot) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeInt32(slot); | 
 |         status_t result = remote()->transact(DETACH_BUFFER, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         result = reply.readInt32(); | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual status_t detachNextBuffer(sp<GraphicBuffer>* outBuffer, | 
 |             sp<Fence>* outFence) { | 
 |         if (outBuffer == NULL) { | 
 |             ALOGE("detachNextBuffer: outBuffer must not be NULL"); | 
 |             return BAD_VALUE; | 
 |         } else if (outFence == NULL) { | 
 |             ALOGE("detachNextBuffer: outFence must not be NULL"); | 
 |             return BAD_VALUE; | 
 |         } | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         status_t result = remote()->transact(DETACH_NEXT_BUFFER, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         result = reply.readInt32(); | 
 |         if (result == NO_ERROR) { | 
 |             bool nonNull = reply.readInt32(); | 
 |             if (nonNull) { | 
 |                 *outBuffer = new GraphicBuffer; | 
 |                 result = reply.read(**outBuffer); | 
 |                 if (result != NO_ERROR) { | 
 |                     outBuffer->clear(); | 
 |                     return result; | 
 |                 } | 
 |             } | 
 |             nonNull = reply.readInt32(); | 
 |             if (nonNull) { | 
 |                 *outFence = new Fence; | 
 |                 result = reply.read(**outFence); | 
 |                 if (result != NO_ERROR) { | 
 |                     outBuffer->clear(); | 
 |                     outFence->clear(); | 
 |                     return result; | 
 |                 } | 
 |             } | 
 |         } | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual status_t attachBuffer(int* slot, const sp<GraphicBuffer>& buffer) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.write(*buffer.get()); | 
 |         status_t result = remote()->transact(ATTACH_BUFFER, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         *slot = reply.readInt32(); | 
 |         result = reply.readInt32(); | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual status_t queueBuffer(int buf, | 
 |             const QueueBufferInput& input, QueueBufferOutput* output) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeInt32(buf); | 
 |         data.write(input); | 
 |         status_t result = remote()->transact(QUEUE_BUFFER, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         memcpy(output, reply.readInplace(sizeof(*output)), sizeof(*output)); | 
 |         result = reply.readInt32(); | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual status_t cancelBuffer(int buf, const sp<Fence>& fence) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeInt32(buf); | 
 |         data.write(*fence.get()); | 
 |         status_t result = remote()->transact(CANCEL_BUFFER, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         result = reply.readInt32(); | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual int query(int what, int* value) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeInt32(what); | 
 |         status_t result = remote()->transact(QUERY, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         value[0] = reply.readInt32(); | 
 |         result = reply.readInt32(); | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual status_t connect(const sp<IProducerListener>& listener, | 
 |             int api, bool producerControlledByApp, QueueBufferOutput* output) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         if (listener != NULL) { | 
 |             data.writeInt32(1); | 
 |             data.writeStrongBinder(IInterface::asBinder(listener)); | 
 |         } else { | 
 |             data.writeInt32(0); | 
 |         } | 
 |         data.writeInt32(api); | 
 |         data.writeInt32(producerControlledByApp); | 
 |         status_t result = remote()->transact(CONNECT, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         memcpy(output, reply.readInplace(sizeof(*output)), sizeof(*output)); | 
 |         result = reply.readInt32(); | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual status_t disconnect(int api, DisconnectMode mode) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeInt32(api); | 
 |         data.writeInt32(static_cast<int32_t>(mode)); | 
 |         status_t result =remote()->transact(DISCONNECT, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         result = reply.readInt32(); | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual status_t setSidebandStream(const sp<NativeHandle>& stream) { | 
 |         Parcel data, reply; | 
 |         status_t result; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         if (stream.get()) { | 
 |             data.writeInt32(true); | 
 |             data.writeNativeHandle(stream->handle()); | 
 |         } else { | 
 |             data.writeInt32(false); | 
 |         } | 
 |         if ((result = remote()->transact(SET_SIDEBAND_STREAM, data, &reply)) == NO_ERROR) { | 
 |             result = reply.readInt32(); | 
 |         } | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual void allocateBuffers(uint32_t width, uint32_t height, | 
 |             PixelFormat format, uint32_t usage) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeUint32(width); | 
 |         data.writeUint32(height); | 
 |         data.writeInt32(static_cast<int32_t>(format)); | 
 |         data.writeUint32(usage); | 
 |         status_t result = remote()->transact(ALLOCATE_BUFFERS, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             ALOGE("allocateBuffers failed to transact: %d", result); | 
 |         } | 
 |     } | 
 |  | 
 |     virtual status_t allowAllocation(bool allow) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeInt32(static_cast<int32_t>(allow)); | 
 |         status_t result = remote()->transact(ALLOW_ALLOCATION, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         result = reply.readInt32(); | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual status_t setGenerationNumber(uint32_t generationNumber) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeUint32(generationNumber); | 
 |         status_t result = remote()->transact(SET_GENERATION_NUMBER, data, &reply); | 
 |         if (result == NO_ERROR) { | 
 |             result = reply.readInt32(); | 
 |         } | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual String8 getConsumerName() const { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         status_t result = remote()->transact(GET_CONSUMER_NAME, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             ALOGE("getConsumerName failed to transact: %d", result); | 
 |             return String8("TransactFailed"); | 
 |         } | 
 |         return reply.readString8(); | 
 |     } | 
 |  | 
 |     virtual status_t setSharedBufferMode(bool sharedBufferMode) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken( | 
 |                 IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeInt32(sharedBufferMode); | 
 |         status_t result = remote()->transact(SET_SHARED_BUFFER_MODE, data, | 
 |                 &reply); | 
 |         if (result == NO_ERROR) { | 
 |             result = reply.readInt32(); | 
 |         } | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual status_t setAutoRefresh(bool autoRefresh) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken( | 
 |                 IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeInt32(autoRefresh); | 
 |         status_t result = remote()->transact(SET_AUTO_REFRESH, data, &reply); | 
 |         if (result == NO_ERROR) { | 
 |             result = reply.readInt32(); | 
 |         } | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual status_t setDequeueTimeout(nsecs_t timeout) { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         data.writeInt64(timeout); | 
 |         status_t result = remote()->transact(SET_DEQUEUE_TIMEOUT, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             ALOGE("setDequeueTimeout failed to transact: %d", result); | 
 |             return result; | 
 |         } | 
 |         return reply.readInt32(); | 
 |     } | 
 |  | 
 |     virtual status_t getLastQueuedBuffer(sp<GraphicBuffer>* outBuffer, | 
 |             sp<Fence>* outFence, float outTransformMatrix[16]) override { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         status_t result = remote()->transact(GET_LAST_QUEUED_BUFFER, data, | 
 |                 &reply); | 
 |         if (result != NO_ERROR) { | 
 |             ALOGE("getLastQueuedBuffer failed to transact: %d", result); | 
 |             return result; | 
 |         } | 
 |         result = reply.readInt32(); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         bool hasBuffer = reply.readBool(); | 
 |         sp<GraphicBuffer> buffer; | 
 |         if (hasBuffer) { | 
 |             buffer = new GraphicBuffer(); | 
 |             result = reply.read(*buffer); | 
 |             if (result == NO_ERROR) { | 
 |                 result = reply.read(outTransformMatrix, sizeof(float) * 16); | 
 |             } | 
 |         } | 
 |         if (result != NO_ERROR) { | 
 |             ALOGE("getLastQueuedBuffer failed to read buffer: %d", result); | 
 |             return result; | 
 |         } | 
 |         sp<Fence> fence(new Fence); | 
 |         result = reply.read(*fence); | 
 |         if (result != NO_ERROR) { | 
 |             ALOGE("getLastQueuedBuffer failed to read fence: %d", result); | 
 |             return result; | 
 |         } | 
 |         *outBuffer = buffer; | 
 |         *outFence = fence; | 
 |         return result; | 
 |     } | 
 |  | 
 |     virtual bool getFrameTimestamps(uint64_t frameNumber, | 
 |                 FrameTimestamps* outTimestamps) const { | 
 |         Parcel data, reply; | 
 |         status_t result = data.writeInterfaceToken( | 
 |                 IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         if (result != NO_ERROR) { | 
 |             ALOGE("getFrameTimestamps failed to write token: %d", result); | 
 |             return false; | 
 |         } | 
 |         result = data.writeUint64(frameNumber); | 
 |         if (result != NO_ERROR) { | 
 |             ALOGE("getFrameTimestamps failed to write: %d", result); | 
 |             return false; | 
 |         } | 
 |         result = remote()->transact(GET_FRAME_TIMESTAMPS, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             ALOGE("getFrameTimestamps failed to transact: %d", result); | 
 |             return false; | 
 |         } | 
 |         bool found = false; | 
 |         result = reply.readBool(&found); | 
 |         if (result != NO_ERROR) { | 
 |             ALOGE("getFrameTimestamps failed to read: %d", result); | 
 |             return false; | 
 |         } | 
 |         if (found) { | 
 |             result = reply.read(*outTimestamps); | 
 |             if (result != NO_ERROR) { | 
 |                 ALOGE("getFrameTimestamps failed to read timestamps: %d", | 
 |                         result); | 
 |                 return false; | 
 |             } | 
 |         } | 
 |         return found; | 
 |     } | 
 |  | 
 |     virtual status_t getUniqueId(uint64_t* outId) const { | 
 |         Parcel data, reply; | 
 |         data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); | 
 |         status_t result = remote()->transact(GET_UNIQUE_ID, data, &reply); | 
 |         if (result != NO_ERROR) { | 
 |             ALOGE("getUniqueId failed to transact: %d", result); | 
 |         } | 
 |         status_t actualResult = NO_ERROR; | 
 |         result = reply.readInt32(&actualResult); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         result = reply.readUint64(outId); | 
 |         if (result != NO_ERROR) { | 
 |             return result; | 
 |         } | 
 |         return actualResult; | 
 |     } | 
 | }; | 
 |  | 
 | // Out-of-line virtual method definition to trigger vtable emission in this | 
 | // translation unit (see clang warning -Wweak-vtables) | 
 | BpGraphicBufferProducer::~BpGraphicBufferProducer() {} | 
 |  | 
 | IMPLEMENT_META_INTERFACE(GraphicBufferProducer, "android.gui.IGraphicBufferProducer"); | 
 |  | 
 | // ---------------------------------------------------------------------- | 
 |  | 
 | status_t BnGraphicBufferProducer::onTransact( | 
 |     uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) | 
 | { | 
 |     switch(code) { | 
 |         case REQUEST_BUFFER: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             int bufferIdx   = data.readInt32(); | 
 |             sp<GraphicBuffer> buffer; | 
 |             int result = requestBuffer(bufferIdx, &buffer); | 
 |             reply->writeInt32(buffer != 0); | 
 |             if (buffer != 0) { | 
 |                 reply->write(*buffer); | 
 |             } | 
 |             reply->writeInt32(result); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case SET_MAX_DEQUEUED_BUFFER_COUNT: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             int maxDequeuedBuffers = data.readInt32(); | 
 |             int result = setMaxDequeuedBufferCount(maxDequeuedBuffers); | 
 |             reply->writeInt32(result); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case SET_ASYNC_MODE: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             bool async = data.readInt32(); | 
 |             int result = setAsyncMode(async); | 
 |             reply->writeInt32(result); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case DEQUEUE_BUFFER: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             uint32_t width = data.readUint32(); | 
 |             uint32_t height = data.readUint32(); | 
 |             PixelFormat format = static_cast<PixelFormat>(data.readInt32()); | 
 |             uint32_t usage = data.readUint32(); | 
 |             int buf = 0; | 
 |             sp<Fence> fence; | 
 |             int result = dequeueBuffer(&buf, &fence, width, height, format, | 
 |                     usage); | 
 |             reply->writeInt32(buf); | 
 |             reply->writeInt32(fence != NULL); | 
 |             if (fence != NULL) { | 
 |                 reply->write(*fence); | 
 |             } | 
 |             reply->writeInt32(result); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case DETACH_BUFFER: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             int slot = data.readInt32(); | 
 |             int result = detachBuffer(slot); | 
 |             reply->writeInt32(result); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case DETACH_NEXT_BUFFER: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             sp<GraphicBuffer> buffer; | 
 |             sp<Fence> fence; | 
 |             int32_t result = detachNextBuffer(&buffer, &fence); | 
 |             reply->writeInt32(result); | 
 |             if (result == NO_ERROR) { | 
 |                 reply->writeInt32(buffer != NULL); | 
 |                 if (buffer != NULL) { | 
 |                     reply->write(*buffer); | 
 |                 } | 
 |                 reply->writeInt32(fence != NULL); | 
 |                 if (fence != NULL) { | 
 |                     reply->write(*fence); | 
 |                 } | 
 |             } | 
 |             return NO_ERROR; | 
 |         } | 
 |         case ATTACH_BUFFER: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             sp<GraphicBuffer> buffer = new GraphicBuffer(); | 
 |             status_t result = data.read(*buffer.get()); | 
 |             int slot = 0; | 
 |             if (result == NO_ERROR) { | 
 |                 result = attachBuffer(&slot, buffer); | 
 |             } | 
 |             reply->writeInt32(slot); | 
 |             reply->writeInt32(result); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case QUEUE_BUFFER: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             int buf = data.readInt32(); | 
 |             QueueBufferInput input(data); | 
 |             QueueBufferOutput* const output = | 
 |                     reinterpret_cast<QueueBufferOutput *>( | 
 |                             reply->writeInplace(sizeof(QueueBufferOutput))); | 
 |             memset(output, 0, sizeof(QueueBufferOutput)); | 
 |             status_t result = queueBuffer(buf, input, output); | 
 |             reply->writeInt32(result); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case CANCEL_BUFFER: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             int buf = data.readInt32(); | 
 |             sp<Fence> fence = new Fence(); | 
 |             status_t result = data.read(*fence.get()); | 
 |             if (result == NO_ERROR) { | 
 |                 result = cancelBuffer(buf, fence); | 
 |             } | 
 |             reply->writeInt32(result); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case QUERY: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             int value = 0; | 
 |             int what = data.readInt32(); | 
 |             int res = query(what, &value); | 
 |             reply->writeInt32(value); | 
 |             reply->writeInt32(res); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case CONNECT: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             sp<IProducerListener> listener; | 
 |             if (data.readInt32() == 1) { | 
 |                 listener = IProducerListener::asInterface(data.readStrongBinder()); | 
 |             } | 
 |             int api = data.readInt32(); | 
 |             bool producerControlledByApp = data.readInt32(); | 
 |             QueueBufferOutput* const output = | 
 |                     reinterpret_cast<QueueBufferOutput *>( | 
 |                             reply->writeInplace(sizeof(QueueBufferOutput))); | 
 |             memset(output, 0, sizeof(QueueBufferOutput)); | 
 |             status_t res = connect(listener, api, producerControlledByApp, output); | 
 |             reply->writeInt32(res); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case DISCONNECT: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             int api = data.readInt32(); | 
 |             DisconnectMode mode = static_cast<DisconnectMode>(data.readInt32()); | 
 |             status_t res = disconnect(api, mode); | 
 |             reply->writeInt32(res); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case SET_SIDEBAND_STREAM: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             sp<NativeHandle> stream; | 
 |             if (data.readInt32()) { | 
 |                 stream = NativeHandle::create(data.readNativeHandle(), true); | 
 |             } | 
 |             status_t result = setSidebandStream(stream); | 
 |             reply->writeInt32(result); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case ALLOCATE_BUFFERS: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             uint32_t width = data.readUint32(); | 
 |             uint32_t height = data.readUint32(); | 
 |             PixelFormat format = static_cast<PixelFormat>(data.readInt32()); | 
 |             uint32_t usage = data.readUint32(); | 
 |             allocateBuffers(width, height, format, usage); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case ALLOW_ALLOCATION: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             bool allow = static_cast<bool>(data.readInt32()); | 
 |             status_t result = allowAllocation(allow); | 
 |             reply->writeInt32(result); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case SET_GENERATION_NUMBER: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             uint32_t generationNumber = data.readUint32(); | 
 |             status_t result = setGenerationNumber(generationNumber); | 
 |             reply->writeInt32(result); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case GET_CONSUMER_NAME: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             reply->writeString8(getConsumerName()); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case SET_SHARED_BUFFER_MODE: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             bool sharedBufferMode = data.readInt32(); | 
 |             status_t result = setSharedBufferMode(sharedBufferMode); | 
 |             reply->writeInt32(result); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case SET_AUTO_REFRESH: { | 
 |             CHECK_INTERFACE(IGraphicBuffer, data, reply); | 
 |             bool autoRefresh = data.readInt32(); | 
 |             status_t result = setAutoRefresh(autoRefresh); | 
 |             reply->writeInt32(result); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case SET_DEQUEUE_TIMEOUT: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             nsecs_t timeout = data.readInt64(); | 
 |             status_t result = setDequeueTimeout(timeout); | 
 |             reply->writeInt32(result); | 
 |             return NO_ERROR; | 
 |         } | 
 |         case GET_LAST_QUEUED_BUFFER: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             sp<GraphicBuffer> buffer(nullptr); | 
 |             sp<Fence> fence(Fence::NO_FENCE); | 
 |             float transform[16] = {}; | 
 |             status_t result = getLastQueuedBuffer(&buffer, &fence, transform); | 
 |             reply->writeInt32(result); | 
 |             if (result != NO_ERROR) { | 
 |                 return result; | 
 |             } | 
 |             if (!buffer.get()) { | 
 |                 reply->writeBool(false); | 
 |             } else { | 
 |                 reply->writeBool(true); | 
 |                 result = reply->write(*buffer); | 
 |                 if (result == NO_ERROR) { | 
 |                     reply->write(transform, sizeof(float) * 16); | 
 |                 } | 
 |             } | 
 |             if (result != NO_ERROR) { | 
 |                 ALOGE("getLastQueuedBuffer failed to write buffer: %d", result); | 
 |                 return result; | 
 |             } | 
 |             result = reply->write(*fence); | 
 |             if (result != NO_ERROR) { | 
 |                 ALOGE("getLastQueuedBuffer failed to write fence: %d", result); | 
 |                 return result; | 
 |             } | 
 |             return NO_ERROR; | 
 |         } | 
 |         case GET_FRAME_TIMESTAMPS: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             uint64_t frameNumber = 0; | 
 |             status_t result = data.readUint64(&frameNumber); | 
 |             if (result != NO_ERROR) { | 
 |                 ALOGE("onTransact failed to read: %d", result); | 
 |                 return result; | 
 |             } | 
 |             FrameTimestamps timestamps; | 
 |             bool found = getFrameTimestamps(frameNumber, ×tamps); | 
 |             result = reply->writeBool(found); | 
 |             if (result != NO_ERROR) { | 
 |                 ALOGE("onTransact failed to write: %d", result); | 
 |                 return result; | 
 |             } | 
 |             if (found) { | 
 |                 result = reply->write(timestamps); | 
 |                 if (result != NO_ERROR) { | 
 |                     ALOGE("onTransact failed to write timestamps: %d", result); | 
 |                     return result; | 
 |                 } | 
 |             } | 
 |             return NO_ERROR; | 
 |         } | 
 |         case GET_UNIQUE_ID: { | 
 |             CHECK_INTERFACE(IGraphicBufferProducer, data, reply); | 
 |             uint64_t outId = 0; | 
 |             status_t actualResult = getUniqueId(&outId); | 
 |             status_t result = reply->writeInt32(actualResult); | 
 |             if (result != NO_ERROR) { | 
 |                 return result; | 
 |             } | 
 |             result = reply->writeUint64(outId); | 
 |             if (result != NO_ERROR) { | 
 |                 return result; | 
 |             } | 
 |             return NO_ERROR; | 
 |         } | 
 |     } | 
 |     return BBinder::onTransact(code, data, reply, flags); | 
 | } | 
 |  | 
 | // ---------------------------------------------------------------------------- | 
 |  | 
 | IGraphicBufferProducer::QueueBufferInput::QueueBufferInput(const Parcel& parcel) { | 
 |     parcel.read(*this); | 
 | } | 
 |  | 
 | size_t IGraphicBufferProducer::QueueBufferInput::getFlattenedSize() const { | 
 |     return sizeof(timestamp) | 
 |          + sizeof(isAutoTimestamp) | 
 |          + sizeof(dataSpace) | 
 |          + sizeof(crop) | 
 |          + sizeof(scalingMode) | 
 |          + sizeof(transform) | 
 |          + sizeof(stickyTransform) | 
 |          + fence->getFlattenedSize() | 
 |          + surfaceDamage.getFlattenedSize(); | 
 | } | 
 |  | 
 | size_t IGraphicBufferProducer::QueueBufferInput::getFdCount() const { | 
 |     return fence->getFdCount(); | 
 | } | 
 |  | 
 | status_t IGraphicBufferProducer::QueueBufferInput::flatten( | 
 |         void*& buffer, size_t& size, int*& fds, size_t& count) const | 
 | { | 
 |     if (size < getFlattenedSize()) { | 
 |         return NO_MEMORY; | 
 |     } | 
 |     FlattenableUtils::write(buffer, size, timestamp); | 
 |     FlattenableUtils::write(buffer, size, isAutoTimestamp); | 
 |     FlattenableUtils::write(buffer, size, dataSpace); | 
 |     FlattenableUtils::write(buffer, size, crop); | 
 |     FlattenableUtils::write(buffer, size, scalingMode); | 
 |     FlattenableUtils::write(buffer, size, transform); | 
 |     FlattenableUtils::write(buffer, size, stickyTransform); | 
 |     status_t result = fence->flatten(buffer, size, fds, count); | 
 |     if (result != NO_ERROR) { | 
 |         return result; | 
 |     } | 
 |     return surfaceDamage.flatten(buffer, size); | 
 | } | 
 |  | 
 | status_t IGraphicBufferProducer::QueueBufferInput::unflatten( | 
 |         void const*& buffer, size_t& size, int const*& fds, size_t& count) | 
 | { | 
 |     size_t minNeeded = | 
 |               sizeof(timestamp) | 
 |             + sizeof(isAutoTimestamp) | 
 |             + sizeof(dataSpace) | 
 |             + sizeof(crop) | 
 |             + sizeof(scalingMode) | 
 |             + sizeof(transform) | 
 |             + sizeof(stickyTransform); | 
 |  | 
 |     if (size < minNeeded) { | 
 |         return NO_MEMORY; | 
 |     } | 
 |  | 
 |     FlattenableUtils::read(buffer, size, timestamp); | 
 |     FlattenableUtils::read(buffer, size, isAutoTimestamp); | 
 |     FlattenableUtils::read(buffer, size, dataSpace); | 
 |     FlattenableUtils::read(buffer, size, crop); | 
 |     FlattenableUtils::read(buffer, size, scalingMode); | 
 |     FlattenableUtils::read(buffer, size, transform); | 
 |     FlattenableUtils::read(buffer, size, stickyTransform); | 
 |  | 
 |     fence = new Fence(); | 
 |     status_t result = fence->unflatten(buffer, size, fds, count); | 
 |     if (result != NO_ERROR) { | 
 |         return result; | 
 |     } | 
 |     return surfaceDamage.unflatten(buffer, size); | 
 | } | 
 |  | 
 | }; // namespace android |