| /* | |
| * 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; | |
| } | |
| // ---------------------------------------------------------------------------- | |
| }; |