diff options
Diffstat (limited to 'libs/ui/ISurfaceComposer.cpp')
| -rw-r--r-- | libs/ui/ISurfaceComposer.cpp | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/libs/ui/ISurfaceComposer.cpp b/libs/ui/ISurfaceComposer.cpp new file mode 100644 index 0000000..0fea6f9 --- /dev/null +++ b/libs/ui/ISurfaceComposer.cpp @@ -0,0 +1,277 @@ +/* + * 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 <utils/Parcel.h> +#include <utils/IMemory.h> +#include <utils/IPCThreadState.h> +#include <utils/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<IMemory> getCblk() const + { + Parcel data, reply; + data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); + remote()->transact(BnSurfaceComposer::GET_CBLK, data, &reply); + return interface_cast<IMemory>(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) + { + Parcel data, reply; + data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); + data.writeInt32(dpy); + data.writeInt32(orientation); + 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 requestGPU( + const sp<IGPUCallback>& callback, gpu_info_t* gpu) + { + Parcel data, reply; + data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); + data.writeStrongBinder(callback->asBinder()); + remote()->transact(BnSurfaceComposer::REQUEST_GPU, data, &reply); + gpu->regs = interface_cast<IMemory>(reply.readStrongBinder()); + gpu->count = reply.readInt32(); + + // FIXME: for now, we don't dynamically allocate the regions array + size_t maxCount = sizeof(gpu->regions)/sizeof(*gpu->regions); + if (gpu->count > maxCount) + return BAD_VALUE; + + for (size_t i=0 ; i<gpu->count ; i++) { + gpu->regions[i].region = interface_cast<IMemory>(reply.readStrongBinder()); + gpu->regions[i].reserved = reply.readInt32(); + } + return reply.readInt32(); + } + + virtual status_t revokeGPU() + { + Parcel data, reply; + data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); + remote()->transact(BnSurfaceComposer::REVOKE_GPU, 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); + } +}; + +IMPLEMENT_META_INTERFACE(SurfaceComposer, "android.ui.ISurfaceComposer"); + +// ---------------------------------------------------------------------- + +#define CHECK_INTERFACE(interface, data, reply) \ + do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \ + LOGW("Call incorrectly routed to " #interface); \ + return PERMISSION_DENIED; \ + } } while (0) + +status_t BnSurfaceComposer::onTransact( + uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) +{ + status_t err = BnInterface<ISurfaceComposer>::onTransact(code, data, reply, flags); + if (err == NO_ERROR) + return err; + + CHECK_INTERFACE(ISurfaceComposer, data, reply); + + switch(code) { + case CREATE_CONNECTION: { + sp<IBinder> b = createConnection()->asBinder(); + reply->writeStrongBinder(b); + } break; + case OPEN_GLOBAL_TRANSACTION: { + openGlobalTransaction(); + } break; + case CLOSE_GLOBAL_TRANSACTION: { + closeGlobalTransaction(); + } break; + case SET_ORIENTATION: { + DisplayID dpy = data.readInt32(); + int orientation = data.readInt32(); + reply->writeInt32( setOrientation(dpy, orientation) ); + } break; + case FREEZE_DISPLAY: { + DisplayID dpy = data.readInt32(); + uint32_t flags = data.readInt32(); + reply->writeInt32( freezeDisplay(dpy, flags) ); + } break; + case UNFREEZE_DISPLAY: { + DisplayID dpy = data.readInt32(); + uint32_t flags = data.readInt32(); + reply->writeInt32( unfreezeDisplay(dpy, flags) ); + } break; + case BOOT_FINISHED: { + bootFinished(); + } break; + case REVOKE_GPU: { + reply->writeInt32( revokeGPU() ); + } break; + case SIGNAL: { + signal(); + } break; + case GET_CBLK: { + sp<IBinder> b = getCblk()->asBinder(); + reply->writeStrongBinder(b); + } break; + case REQUEST_GPU: { + // TODO: this should be protected by a permission + gpu_info_t info; + sp<IGPUCallback> callback + = interface_cast<IGPUCallback>(data.readStrongBinder()); + status_t res = requestGPU(callback, &info); + + // FIXME: for now, we don't dynamically allocate the regions array + size_t maxCount = sizeof(info.regions)/sizeof(*info.regions); + if (info.count > maxCount) + return BAD_VALUE; + + reply->writeStrongBinder(info.regs->asBinder()); + reply->writeInt32(info.count); + for (size_t i=0 ; i<info.count ; i++) { + reply->writeStrongBinder(info.regions[i].region->asBinder()); + reply->writeInt32(info.regions[i].reserved); + } + reply->writeInt32(res); + } break; + default: + return UNKNOWN_TRANSACTION; + } + return NO_ERROR; +} + +// ---------------------------------------------------------------------------- + +enum { + // Note: BOOT_FINISHED must remain this value, it is called by ActivityManagerService. + GPU_LOST = IBinder::FIRST_CALL_TRANSACTION +}; + +class BpGPUCallback : public BpInterface<IGPUCallback> +{ +public: + BpGPUCallback(const sp<IBinder>& impl) + : BpInterface<IGPUCallback>(impl) + { + } + + virtual void gpuLost() + { + Parcel data, reply; + data.writeInterfaceToken(IGPUCallback::getInterfaceDescriptor()); + remote()->transact(GPU_LOST, data, &reply, IBinder::FLAG_ONEWAY); + } +}; + +IMPLEMENT_META_INTERFACE(GPUCallback, "android.ui.IGPUCallback"); + +status_t BnGPUCallback::onTransact( + uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) +{ + switch(code) { + case GPU_LOST: { + CHECK_INTERFACE(IGPUCallback, data, reply); + gpuLost(); + return NO_ERROR; + } break; + default: + return BBinder::onTransact(code, data, reply, flags); + } +} + +}; |