/* * 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 <surfaceflinger/ISurfaceComposer.h> #include <ui/DisplayInfo.h> #include <utils/Log.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<ISurfaceComposerClient> createConnection() { uint32_t n; Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::CREATE_CONNECTION, data, &reply); return interface_cast<ISurfaceComposerClient>(reply.readStrongBinder()); } virtual sp<ISurfaceComposerClient> createClientConnection() { uint32_t n; Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::CREATE_CLIENT_CONNECTION, data, &reply); return interface_cast<ISurfaceComposerClient>(reply.readStrongBinder()); } virtual sp<IGraphicBufferAlloc> createGraphicBufferAlloc() { uint32_t n; Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::CREATE_GRAPHIC_BUFFER_ALLOC, data, &reply); return interface_cast<IGraphicBufferAlloc>(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 status_t captureScreen(DisplayID dpy, sp<IMemoryHeap>* heap, uint32_t* width, uint32_t* height, PixelFormat* format, uint32_t reqWidth, uint32_t reqHeight, uint32_t minLayerZ, uint32_t maxLayerZ) { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); data.writeInt32(dpy); data.writeInt32(reqWidth); data.writeInt32(reqHeight); data.writeInt32(minLayerZ); data.writeInt32(maxLayerZ); remote()->transact(BnSurfaceComposer::CAPTURE_SCREEN, data, &reply); *heap = interface_cast<IMemoryHeap>(reply.readStrongBinder()); *width = reply.readInt32(); *height = reply.readInt32(); *format = reply.readInt32(); return reply.readInt32(); } virtual status_t turnElectronBeamOff(int32_t mode) { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); data.writeInt32(mode); remote()->transact(BnSurfaceComposer::TURN_ELECTRON_BEAM_OFF, data, &reply); return reply.readInt32(); } virtual status_t turnElectronBeamOn(int32_t mode) { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); data.writeInt32(mode); remote()->transact(BnSurfaceComposer::TURN_ELECTRON_BEAM_ON, data, &reply); return reply.readInt32(); } virtual void signal() const { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::SIGNAL, data, &reply, IBinder::FLAG_ONEWAY); } virtual bool authenticateSurface(const sp<ISurface>& surface) const { Parcel data, reply; int err = NO_ERROR; err = data.writeInterfaceToken( ISurfaceComposer::getInterfaceDescriptor()); if (err != NO_ERROR) { LOGE("ISurfaceComposer::authenticateSurface: error writing " "interface descriptor: %s (%d)", strerror(-err), -err); return false; } err = data.writeStrongBinder(surface->asBinder()); if (err != NO_ERROR) { LOGE("ISurfaceComposer::authenticateSurface: error writing strong " "binder to parcel: %s (%d)", strerror(-err), -err); return false; } err = remote()->transact(BnSurfaceComposer::AUTHENTICATE_SURFACE, data, &reply); if (err != NO_ERROR) { LOGE("ISurfaceComposer::authenticateSurface: error performing " "transaction: %s (%d)", strerror(-err), -err); return false; } int32_t result = 0; err = reply.readInt32(&result); if (err != NO_ERROR) { LOGE("ISurfaceComposer::authenticateSurface: error retrieving " "result: %s (%d)", strerror(-err), -err); return false; } return result != 0; } }; 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 CREATE_CLIENT_CONNECTION: { CHECK_INTERFACE(ISurfaceComposer, data, reply); sp<IBinder> b = createClientConnection()->asBinder(); reply->writeStrongBinder(b); } break; case CREATE_GRAPHIC_BUFFER_ALLOC: { CHECK_INTERFACE(ISurfaceComposer, data, reply); sp<IBinder> b = createGraphicBufferAlloc()->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; case CAPTURE_SCREEN: { CHECK_INTERFACE(ISurfaceComposer, data, reply); DisplayID dpy = data.readInt32(); uint32_t reqWidth = data.readInt32(); uint32_t reqHeight = data.readInt32(); uint32_t minLayerZ = data.readInt32(); uint32_t maxLayerZ = data.readInt32(); sp<IMemoryHeap> heap; uint32_t w, h; PixelFormat f; status_t res = captureScreen(dpy, &heap, &w, &h, &f, reqWidth, reqHeight, minLayerZ, maxLayerZ); reply->writeStrongBinder(heap->asBinder()); reply->writeInt32(w); reply->writeInt32(h); reply->writeInt32(f); reply->writeInt32(res); } break; case TURN_ELECTRON_BEAM_OFF: { CHECK_INTERFACE(ISurfaceComposer, data, reply); int32_t mode = data.readInt32(); status_t res = turnElectronBeamOff(mode); reply->writeInt32(res); } break; case TURN_ELECTRON_BEAM_ON: { CHECK_INTERFACE(ISurfaceComposer, data, reply); int32_t mode = data.readInt32(); status_t res = turnElectronBeamOn(mode); reply->writeInt32(res); } break; case AUTHENTICATE_SURFACE: { CHECK_INTERFACE(ISurfaceComposer, data, reply); sp<ISurface> surface = interface_cast<ISurface>(data.readStrongBinder()); int32_t result = authenticateSurface(surface) ? 1 : 0; reply->writeInt32(result); } break; default: return BBinder::onTransact(code, data, reply, flags); } return NO_ERROR; } // ---------------------------------------------------------------------------- };