118 lines
3.6 KiB
C++
118 lines
3.6 KiB
C++
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/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/Parcel.h>
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#include <utils/IMemory.h>
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#include <ui/ISurface.h>
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namespace android {
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enum {
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REGISTER_BUFFERS = IBinder::FIRST_CALL_TRANSACTION,
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UNREGISTER_BUFFERS,
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POST_BUFFER, // one-way transaction
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};
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class BpSurface : public BpInterface<ISurface>
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{
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public:
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BpSurface(const sp<IBinder>& impl)
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: BpInterface<ISurface>(impl)
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{
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}
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virtual status_t registerBuffers(int w, int h, int hstride, int vstride,
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PixelFormat format, const sp<IMemoryHeap>& heap)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
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data.writeInt32(w);
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data.writeInt32(h);
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data.writeInt32(hstride);
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data.writeInt32(vstride);
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data.writeInt32(format);
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data.writeStrongBinder(heap->asBinder());
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remote()->transact(REGISTER_BUFFERS, data, &reply);
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status_t result = reply.readInt32();
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return result;
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}
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virtual void postBuffer(ssize_t offset)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
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data.writeInt32(offset);
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remote()->transact(POST_BUFFER, data, &reply, IBinder::FLAG_ONEWAY);
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}
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virtual void unregisterBuffers()
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
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remote()->transact(UNREGISTER_BUFFERS, data, &reply);
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}
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};
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IMPLEMENT_META_INTERFACE(Surface, "android.ui.ISurface");
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// ----------------------------------------------------------------------
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#define CHECK_INTERFACE(interface, data, reply) \
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do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \
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LOGW("Call incorrectly routed to " #interface); \
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return PERMISSION_DENIED; \
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} } while (0)
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status_t BnSurface::onTransact(
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uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
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{
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switch(code) {
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case REGISTER_BUFFERS: {
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CHECK_INTERFACE(ISurface, data, reply);
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int w = data.readInt32();
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int h = data.readInt32();
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int hs= data.readInt32();
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int vs= data.readInt32();
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PixelFormat f = data.readInt32();
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sp<IMemoryHeap> heap(interface_cast<IMemoryHeap>(data.readStrongBinder()));
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status_t err = registerBuffers(w,h,hs,vs,f,heap);
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reply->writeInt32(err);
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return NO_ERROR;
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} break;
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case UNREGISTER_BUFFERS: {
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CHECK_INTERFACE(ISurface, data, reply);
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unregisterBuffers();
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return NO_ERROR;
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} break;
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case POST_BUFFER: {
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CHECK_INTERFACE(ISurface, data, reply);
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ssize_t offset = data.readInt32();
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postBuffer(offset);
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return NO_ERROR;
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} break;
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default:
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return BBinder::onTransact(code, data, reply, flags);
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}
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}
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}; // namespace android
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