| /* |
| * 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/RefBase.h> |
| #include <utils/Vector.h> |
| #include <utils/Timers.h> |
| |
| #include <binder/Parcel.h> |
| #include <binder/IInterface.h> |
| |
| #include <gui/IGraphicBufferProducer.h> |
| |
| namespace android { |
| // ---------------------------------------------------------------------------- |
| |
| enum { |
| REQUEST_BUFFER = IBinder::FIRST_CALL_TRANSACTION, |
| SET_BUFFER_COUNT, |
| DEQUEUE_BUFFER, |
| QUEUE_BUFFER, |
| CANCEL_BUFFER, |
| QUERY, |
| SET_SYNCHRONOUS_MODE, |
| CONNECT, |
| DISCONNECT, |
| }; |
| |
| |
| class BpGraphicBufferProducer : public BpInterface<IGraphicBufferProducer> |
| { |
| public: |
| BpGraphicBufferProducer(const sp<IBinder>& impl) |
| : BpInterface<IGraphicBufferProducer>(impl) |
| { |
| } |
| |
| 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(); |
| reply.read(**buf); |
| } |
| 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, |
| uint32_t w, uint32_t h, uint32_t format, uint32_t usage) { |
| Parcel data, reply; |
| data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); |
| data.writeInt32(w); |
| data.writeInt32(h); |
| data.writeInt32(format); |
| data.writeInt32(usage); |
| status_t result = remote()->transact(DEQUEUE_BUFFER, data, &reply); |
| if (result != NO_ERROR) { |
| return result; |
| } |
| *buf = reply.readInt32(); |
| bool fenceWasWritten = reply.readInt32(); |
| if (fenceWasWritten) { |
| // If the fence was written by the callee, then overwrite the |
| // caller's fence here. If it wasn't written then don't touch the |
| // caller's fence. |
| *fence = new Fence(); |
| reply.read(*(fence->get())); |
| } |
| 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 setSynchronousMode(bool enabled) { |
| Parcel data, reply; |
| data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); |
| data.writeInt32(enabled); |
| status_t result = remote()->transact(SET_SYNCHRONOUS_MODE, data, &reply); |
| if (result != NO_ERROR) { |
| return result; |
| } |
| result = reply.readInt32(); |
| return result; |
| } |
| |
| virtual status_t connect(int api, QueueBufferOutput* output) { |
| Parcel data, reply; |
| data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor()); |
| data.writeInt32(api); |
| 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; |
| } |
| }; |
| |
| 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; |
| } break; |
| case SET_BUFFER_COUNT: { |
| CHECK_INTERFACE(IGraphicBufferProducer, data, reply); |
| int bufferCount = data.readInt32(); |
| int result = setBufferCount(bufferCount); |
| reply->writeInt32(result); |
| return NO_ERROR; |
| } break; |
| case DEQUEUE_BUFFER: { |
| CHECK_INTERFACE(IGraphicBufferProducer, data, reply); |
| uint32_t w = data.readInt32(); |
| uint32_t h = data.readInt32(); |
| uint32_t format = data.readInt32(); |
| uint32_t usage = data.readInt32(); |
| int buf; |
| sp<Fence> fence; |
| int result = dequeueBuffer(&buf, &fence, w, h, format, usage); |
| reply->writeInt32(buf); |
| reply->writeInt32(fence != NULL); |
| if (fence != NULL) { |
| reply->write(*fence.get()); |
| } |
| reply->writeInt32(result); |
| return NO_ERROR; |
| } break; |
| 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; |
| } break; |
| 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; |
| } break; |
| 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; |
| } break; |
| case SET_SYNCHRONOUS_MODE: { |
| CHECK_INTERFACE(IGraphicBufferProducer, data, reply); |
| bool enabled = data.readInt32(); |
| status_t res = setSynchronousMode(enabled); |
| reply->writeInt32(res); |
| return NO_ERROR; |
| } break; |
| case CONNECT: { |
| CHECK_INTERFACE(IGraphicBufferProducer, data, reply); |
| int api = data.readInt32(); |
| QueueBufferOutput* const output = |
| reinterpret_cast<QueueBufferOutput *>( |
| reply->writeInplace(sizeof(QueueBufferOutput))); |
| status_t res = connect(api, output); |
| reply->writeInt32(res); |
| return NO_ERROR; |
| } break; |
| case DISCONNECT: { |
| CHECK_INTERFACE(IGraphicBufferProducer, data, reply); |
| int api = data.readInt32(); |
| status_t res = disconnect(api); |
| reply->writeInt32(res); |
| return NO_ERROR; |
| } break; |
| } |
| 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(crop) |
| + sizeof(scalingMode) |
| + sizeof(transform) |
| + 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 |
| { |
| status_t err = NO_ERROR; |
| char* p = (char*)buffer; |
| memcpy(p, ×tamp, sizeof(timestamp)); p += sizeof(timestamp); |
| memcpy(p, &crop, sizeof(crop)); p += sizeof(crop); |
| memcpy(p, &scalingMode, sizeof(scalingMode)); p += sizeof(scalingMode); |
| memcpy(p, &transform, sizeof(transform)); p += sizeof(transform); |
| err = fence->flatten(p, size - (p - (char*)buffer), fds, count); |
| return err; |
| } |
| |
| status_t IGraphicBufferProducer::QueueBufferInput::unflatten(void const* buffer, |
| size_t size, int fds[], size_t count) |
| { |
| status_t err = NO_ERROR; |
| const char* p = (const char*)buffer; |
| memcpy(×tamp, p, sizeof(timestamp)); p += sizeof(timestamp); |
| memcpy(&crop, p, sizeof(crop)); p += sizeof(crop); |
| memcpy(&scalingMode, p, sizeof(scalingMode)); p += sizeof(scalingMode); |
| memcpy(&transform, p, sizeof(transform)); p += sizeof(transform); |
| fence = new Fence(); |
| err = fence->unflatten(p, size - (p - (const char*)buffer), fds, count); |
| return err; |
| } |
| |
| }; // namespace android |
