| /* |
| * 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, |
| SET_BUFFER_COUNT, |
| DEQUEUE_BUFFER, |
| DETACH_BUFFER, |
| DETACH_NEXT_BUFFER, |
| ATTACH_BUFFER, |
| QUEUE_BUFFER, |
| CANCEL_BUFFER, |
| QUERY, |
| CONNECT, |
| DISCONNECT, |
| SET_SIDEBAND_STREAM, |
| ALLOCATE_BUFFERS, |
| }; |
| |
| class BpGraphicBufferProducer : public BpInterface<IGraphicBufferProducer> |
| { |
| public: |
| 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 setBufferCount(int bufferCount) |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); |
| data.writeInt32(bufferCount); |
| status_t result =remote()->transact(SET_BUFFER_COUNT, data, &reply); |
| if (result != NO_ERROR) { |
| return result; |
| } |
| result = reply.readInt32(); |
| return result; |
| } |
| |
| virtual status_t dequeueBuffer(int *buf, sp<Fence>* fence, bool async, |
| uint32_t width, uint32_t height, PixelFormat format, |
| uint32_t usage) { |
| Parcel data, reply; |
| data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); |
| data.writeInt32(static_cast<int32_t>(async)); |
| 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(); |
| reply.read(**fence); |
| } |
| 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; |
| reply.read(**outBuffer); |
| } |
| nonNull = reply.readInt32(); |
| if (nonNull) { |
| *outFence = new Fence; |
| reply.read(**outFence); |
| } |
| } |
| 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 void cancelBuffer(int buf, const sp<Fence>& fence) { |
| Parcel data, reply; |
| data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); |
| data.writeInt32(buf); |
| data.write(*fence.get()); |
| remote()->transact(CANCEL_BUFFER, data, &reply); |
| } |
| |
| 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) { |
| Parcel data, reply; |
| data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); |
| data.writeInt32(api); |
| 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(bool async, uint32_t width, uint32_t height, |
| PixelFormat format, uint32_t usage) { |
| Parcel data, reply; |
| data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); |
| data.writeInt32(static_cast<int32_t>(async)); |
| 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); |
| } |
| } |
| }; |
| |
| // 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_BUFFER_COUNT: { |
| CHECK_INTERFACE(IGraphicBufferProducer, data, reply); |
| int bufferCount = data.readInt32(); |
| int result = setBufferCount(bufferCount); |
| reply->writeInt32(result); |
| return NO_ERROR; |
| } |
| case DEQUEUE_BUFFER: { |
| CHECK_INTERFACE(IGraphicBufferProducer, data, reply); |
| bool async = static_cast<bool>(data.readInt32()); |
| uint32_t width = data.readUint32(); |
| uint32_t height = data.readUint32(); |
| PixelFormat format = static_cast<PixelFormat>(data.readInt32()); |
| uint32_t usage = data.readUint32(); |
| int buf; |
| sp<Fence> fence; |
| int result = dequeueBuffer(&buf, &fence, async, 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(); |
| data.read(*buffer.get()); |
| int slot; |
| int 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))); |
| 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(); |
| data.read(*fence.get()); |
| cancelBuffer(buf, fence); |
| return NO_ERROR; |
| } |
| case QUERY: { |
| CHECK_INTERFACE(IGraphicBufferProducer, data, reply); |
| int value; |
| 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))); |
| 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(); |
| status_t res = disconnect(api); |
| 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); |
| bool async = static_cast<bool>(data.readInt32()); |
| uint32_t width = data.readUint32(); |
| uint32_t height = data.readUint32(); |
| PixelFormat format = static_cast<PixelFormat>(data.readInt32()); |
| uint32_t usage = data.readUint32(); |
| allocateBuffers(async, width, height, format, usage); |
| 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(crop) |
| + sizeof(scalingMode) |
| + sizeof(transform) |
| + sizeof(stickyTransform) |
| + sizeof(async) |
| + fence->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, crop); |
| FlattenableUtils::write(buffer, size, scalingMode); |
| FlattenableUtils::write(buffer, size, transform); |
| FlattenableUtils::write(buffer, size, stickyTransform); |
| FlattenableUtils::write(buffer, size, async); |
| return fence->flatten(buffer, size, fds, count); |
| } |
| |
| 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(crop) |
| + sizeof(scalingMode) |
| + sizeof(transform) |
| + sizeof(stickyTransform) |
| + sizeof(async); |
| |
| if (size < minNeeded) { |
| return NO_MEMORY; |
| } |
| |
| FlattenableUtils::read(buffer, size, timestamp); |
| FlattenableUtils::read(buffer, size, isAutoTimestamp); |
| FlattenableUtils::read(buffer, size, crop); |
| FlattenableUtils::read(buffer, size, scalingMode); |
| FlattenableUtils::read(buffer, size, transform); |
| FlattenableUtils::read(buffer, size, stickyTransform); |
| FlattenableUtils::read(buffer, size, async); |
| |
| fence = new Fence(); |
| return fence->unflatten(buffer, size, fds, count); |
| } |
| |
| }; // namespace android |
