/* * 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 #include #include #include #include #include #include #include #include #include #include #include #include // --------------------------------------------------------------------------- namespace android { class IDisplayEventConnection; class BpSurfaceComposer : public BpInterface { public: BpSurfaceComposer(const sp& impl) : BpInterface(impl) { } virtual sp createConnection() { uint32_t n; Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::CREATE_CONNECTION, data, &reply); return interface_cast(reply.readStrongBinder()); } virtual sp createGraphicBufferAlloc() { uint32_t n; Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::CREATE_GRAPHIC_BUFFER_ALLOC, data, &reply); return interface_cast(reply.readStrongBinder()); } virtual sp getCblk() const { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::GET_CBLK, data, &reply); return interface_cast(reply.readStrongBinder()); } virtual void setTransactionState( const Vector& state, const Vector& displays, uint32_t flags) { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); { Vector::const_iterator b(state.begin()); Vector::const_iterator e(state.end()); data.writeInt32(state.size()); for ( ; b != e ; ++b ) { b->write(data); } } { Vector::const_iterator b(displays.begin()); Vector::const_iterator e(displays.end()); data.writeInt32(displays.size()); for ( ; b != e ; ++b ) { b->write(data); } } data.writeInt32(flags); remote()->transact(BnSurfaceComposer::SET_TRANSACTION_STATE, data, &reply); } virtual void bootFinished() { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::BOOT_FINISHED, data, &reply); } virtual status_t captureScreen(DisplayID dpy, sp* 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(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 bool authenticateSurfaceTexture( const sp& surfaceTexture) const { Parcel data, reply; int err = NO_ERROR; err = data.writeInterfaceToken( ISurfaceComposer::getInterfaceDescriptor()); if (err != NO_ERROR) { ALOGE("ISurfaceComposer::authenticateSurfaceTexture: error writing " "interface descriptor: %s (%d)", strerror(-err), -err); return false; } err = data.writeStrongBinder(surfaceTexture->asBinder()); if (err != NO_ERROR) { ALOGE("ISurfaceComposer::authenticateSurfaceTexture: 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) { ALOGE("ISurfaceComposer::authenticateSurfaceTexture: error " "performing transaction: %s (%d)", strerror(-err), -err); return false; } int32_t result = 0; err = reply.readInt32(&result); if (err != NO_ERROR) { ALOGE("ISurfaceComposer::authenticateSurfaceTexture: error " "retrieving result: %s (%d)", strerror(-err), -err); return false; } return result != 0; } virtual sp createDisplayEventConnection() { Parcel data, reply; sp result; int err = data.writeInterfaceToken( ISurfaceComposer::getInterfaceDescriptor()); if (err != NO_ERROR) { return result; } err = remote()->transact( BnSurfaceComposer::CREATE_DISPLAY_EVENT_CONNECTION, data, &reply); if (err != NO_ERROR) { ALOGE("ISurfaceComposer::createDisplayEventConnection: error performing " "transaction: %s (%d)", strerror(-err), -err); return result; } result = interface_cast(reply.readStrongBinder()); return result; } virtual void blank() { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::BLANK, data, &reply); } virtual void unblank() { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); remote()->transact(BnSurfaceComposer::UNBLANK, data, &reply); } virtual void connectDisplay(const sp display) { Parcel data, reply; data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); data.writeStrongBinder(display->asBinder()); remote()->transact(BnSurfaceComposer::CONNECT_DISPLAY, data, &reply); } }; 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 b = createConnection()->asBinder(); reply->writeStrongBinder(b); } break; case CREATE_GRAPHIC_BUFFER_ALLOC: { CHECK_INTERFACE(ISurfaceComposer, data, reply); sp b = createGraphicBufferAlloc()->asBinder(); reply->writeStrongBinder(b); } break; case SET_TRANSACTION_STATE: { CHECK_INTERFACE(ISurfaceComposer, data, reply); size_t count = data.readInt32(); ComposerState s; Vector state; state.setCapacity(count); for (size_t i=0 ; i displays; displays.setCapacity(count); for (size_t i=0 ; i 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 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 surfaceTexture = interface_cast(data.readStrongBinder()); int32_t result = authenticateSurfaceTexture(surfaceTexture) ? 1 : 0; reply->writeInt32(result); } break; case CREATE_DISPLAY_EVENT_CONNECTION: { CHECK_INTERFACE(ISurfaceComposer, data, reply); sp connection(createDisplayEventConnection()); reply->writeStrongBinder(connection->asBinder()); return NO_ERROR; } break; case BLANK: { CHECK_INTERFACE(ISurfaceComposer, data, reply); blank(); } break; case UNBLANK: { CHECK_INTERFACE(ISurfaceComposer, data, reply); unblank(); } break; case CONNECT_DISPLAY: { CHECK_INTERFACE(ISurfaceComposer, data, reply); sp surfaceTexture = interface_cast(data.readStrongBinder()); connectDisplay(surfaceTexture); } break; default: return BBinder::onTransact(code, data, reply, flags); } return NO_ERROR; } // ---------------------------------------------------------------------------- };