/* * Copyright (C) 2007 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. */ // tag as surfaceflinger #define LOG_TAG "SurfaceFlinger" #include <stdint.h> #include <sys/types.h> #include <binder/Parcel.h> #include <binder/IMemory.h> #include <binder/IPCThreadState.h> #include <binder/IServiceManager.h> #include <ui/ISurfaceComposer.h> #include <ui/DisplayInfo.h> // --------------------------------------------------------------------------- #define LIKELY( exp ) (__builtin_expect( (exp) != 0, true )) #define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false )) // --------------------------------------------------------------------------- namespace android { class BpSurfaceComposer : public BpInterface<ISurfaceComposer> { public: BpSurfaceComposer(const sp<IBinder>& impl) : BpInterface<ISurfaceComposer>(impl) { } virtual sp<ISurfaceFlingerClient> createConnection() { uint32_t n; Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::CREATE_CONNECTION, data, &reply); return interface_cast<ISurfaceFlingerClient>(reply.readStrongBinder()); } virtual sp<IMemoryHeap> getCblk() const { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::GET_CBLK, data, &reply); return interface_cast<IMemoryHeap>(reply.readStrongBinder()); } virtual void openGlobalTransaction() { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::OPEN_GLOBAL_TRANSACTION, data, &reply); } virtual void closeGlobalTransaction() { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::CLOSE_GLOBAL_TRANSACTION, data, &reply); } virtual status_t freezeDisplay(DisplayID dpy, uint32_t flags) { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); data.writeInt32(dpy); data.writeInt32(flags); remote()->transact(BnSurfaceComposer::FREEZE_DISPLAY, data, &reply); return reply.readInt32(); } virtual status_t unfreezeDisplay(DisplayID dpy, uint32_t flags) { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); data.writeInt32(dpy); data.writeInt32(flags); remote()->transact(BnSurfaceComposer::UNFREEZE_DISPLAY, data, &reply); return reply.readInt32(); } virtual int setOrientation(DisplayID dpy, int orientation, uint32_t flags) { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); data.writeInt32(dpy); data.writeInt32(orientation); data.writeInt32(flags); remote()->transact(BnSurfaceComposer::SET_ORIENTATION, data, &reply); return reply.readInt32(); } virtual void bootFinished() { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::BOOT_FINISHED, data, &reply); } virtual void signal() const { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::SIGNAL, data, &reply, IBinder::FLAG_ONEWAY); } }; IMPLEMENT_META_INTERFACE(SurfaceComposer, "android.ui.ISurfaceComposer"); // ---------------------------------------------------------------------- status_t BnSurfaceComposer::onTransact( uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) { switch(code) { case CREATE_CONNECTION: { CHECK_INTERFACE(ISurfaceComposer, data, reply); sp<IBinder> b = createConnection()->asBinder(); reply->writeStrongBinder(b); } break; case OPEN_GLOBAL_TRANSACTION: { CHECK_INTERFACE(ISurfaceComposer, data, reply); openGlobalTransaction(); } break; case CLOSE_GLOBAL_TRANSACTION: { CHECK_INTERFACE(ISurfaceComposer, data, reply); closeGlobalTransaction(); } break; case SET_ORIENTATION: { CHECK_INTERFACE(ISurfaceComposer, data, reply); DisplayID dpy = data.readInt32(); int orientation = data.readInt32(); uint32_t flags = data.readInt32(); reply->writeInt32( setOrientation(dpy, orientation, flags) ); } break; case FREEZE_DISPLAY: { CHECK_INTERFACE(ISurfaceComposer, data, reply); DisplayID dpy = data.readInt32(); uint32_t flags = data.readInt32(); reply->writeInt32( freezeDisplay(dpy, flags) ); } break; case UNFREEZE_DISPLAY: { CHECK_INTERFACE(ISurfaceComposer, data, reply); DisplayID dpy = data.readInt32(); uint32_t flags = data.readInt32(); reply->writeInt32( unfreezeDisplay(dpy, flags) ); } break; case BOOT_FINISHED: { CHECK_INTERFACE(ISurfaceComposer, data, reply); bootFinished(); } break; case SIGNAL: { CHECK_INTERFACE(ISurfaceComposer, data, reply); signal(); } break; case GET_CBLK: { CHECK_INTERFACE(ISurfaceComposer, data, reply); sp<IBinder> b = getCblk()->asBinder(); reply->writeStrongBinder(b); } break; default: return BBinder::onTransact(code, data, reply, flags); } return NO_ERROR; } // ---------------------------------------------------------------------------- };