278 lines
9.1 KiB
C++
278 lines
9.1 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// tag as surfaceflinger
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#define LOG_TAG "SurfaceFlinger"
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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/Parcel.h>
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#include <utils/IMemory.h>
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#include <utils/IPCThreadState.h>
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#include <utils/IServiceManager.h>
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#include <ui/ISurfaceComposer.h>
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#include <ui/DisplayInfo.h>
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// ---------------------------------------------------------------------------
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#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
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#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
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// ---------------------------------------------------------------------------
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namespace android {
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class BpSurfaceComposer : public BpInterface<ISurfaceComposer>
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{
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public:
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BpSurfaceComposer(const sp<IBinder>& impl)
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: BpInterface<ISurfaceComposer>(impl)
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{
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}
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virtual sp<ISurfaceFlingerClient> createConnection()
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{
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uint32_t n;
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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remote()->transact(BnSurfaceComposer::CREATE_CONNECTION, data, &reply);
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return interface_cast<ISurfaceFlingerClient>(reply.readStrongBinder());
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}
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virtual sp<IMemory> getCblk() const
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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remote()->transact(BnSurfaceComposer::GET_CBLK, data, &reply);
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return interface_cast<IMemory>(reply.readStrongBinder());
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}
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virtual void openGlobalTransaction()
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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remote()->transact(BnSurfaceComposer::OPEN_GLOBAL_TRANSACTION, data, &reply);
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}
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virtual void closeGlobalTransaction()
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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remote()->transact(BnSurfaceComposer::CLOSE_GLOBAL_TRANSACTION, data, &reply);
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}
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virtual status_t freezeDisplay(DisplayID dpy, uint32_t flags)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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data.writeInt32(dpy);
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data.writeInt32(flags);
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remote()->transact(BnSurfaceComposer::FREEZE_DISPLAY, data, &reply);
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return reply.readInt32();
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}
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virtual status_t unfreezeDisplay(DisplayID dpy, uint32_t flags)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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data.writeInt32(dpy);
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data.writeInt32(flags);
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remote()->transact(BnSurfaceComposer::UNFREEZE_DISPLAY, data, &reply);
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return reply.readInt32();
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}
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virtual int setOrientation(DisplayID dpy, int orientation)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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data.writeInt32(dpy);
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data.writeInt32(orientation);
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remote()->transact(BnSurfaceComposer::SET_ORIENTATION, data, &reply);
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return reply.readInt32();
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}
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virtual void bootFinished()
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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remote()->transact(BnSurfaceComposer::BOOT_FINISHED, data, &reply);
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}
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virtual status_t requestGPU(
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const sp<IGPUCallback>& callback, gpu_info_t* gpu)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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data.writeStrongBinder(callback->asBinder());
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remote()->transact(BnSurfaceComposer::REQUEST_GPU, data, &reply);
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gpu->regs = interface_cast<IMemory>(reply.readStrongBinder());
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gpu->count = reply.readInt32();
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// FIXME: for now, we don't dynamically allocate the regions array
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size_t maxCount = sizeof(gpu->regions)/sizeof(*gpu->regions);
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if (gpu->count > maxCount)
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return BAD_VALUE;
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for (size_t i=0 ; i<gpu->count ; i++) {
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gpu->regions[i].region = interface_cast<IMemory>(reply.readStrongBinder());
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gpu->regions[i].reserved = reply.readInt32();
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}
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return reply.readInt32();
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}
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virtual status_t revokeGPU()
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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remote()->transact(BnSurfaceComposer::REVOKE_GPU, data, &reply);
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return reply.readInt32();
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}
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virtual void signal() const
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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remote()->transact(BnSurfaceComposer::SIGNAL, data, &reply, IBinder::FLAG_ONEWAY);
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}
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};
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IMPLEMENT_META_INTERFACE(SurfaceComposer, "android.ui.ISurfaceComposer");
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// ----------------------------------------------------------------------
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#define CHECK_INTERFACE(interface, data, reply) \
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do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \
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LOGW("Call incorrectly routed to " #interface); \
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return PERMISSION_DENIED; \
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} } while (0)
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status_t BnSurfaceComposer::onTransact(
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uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
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{
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status_t err = BnInterface<ISurfaceComposer>::onTransact(code, data, reply, flags);
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if (err == NO_ERROR)
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return err;
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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switch(code) {
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case CREATE_CONNECTION: {
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sp<IBinder> b = createConnection()->asBinder();
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reply->writeStrongBinder(b);
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} break;
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case OPEN_GLOBAL_TRANSACTION: {
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openGlobalTransaction();
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} break;
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case CLOSE_GLOBAL_TRANSACTION: {
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closeGlobalTransaction();
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} break;
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case SET_ORIENTATION: {
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DisplayID dpy = data.readInt32();
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int orientation = data.readInt32();
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reply->writeInt32( setOrientation(dpy, orientation) );
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} break;
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case FREEZE_DISPLAY: {
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DisplayID dpy = data.readInt32();
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uint32_t flags = data.readInt32();
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reply->writeInt32( freezeDisplay(dpy, flags) );
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} break;
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case UNFREEZE_DISPLAY: {
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DisplayID dpy = data.readInt32();
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uint32_t flags = data.readInt32();
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reply->writeInt32( unfreezeDisplay(dpy, flags) );
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} break;
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case BOOT_FINISHED: {
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bootFinished();
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} break;
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case REVOKE_GPU: {
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reply->writeInt32( revokeGPU() );
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} break;
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case SIGNAL: {
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signal();
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} break;
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case GET_CBLK: {
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sp<IBinder> b = getCblk()->asBinder();
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reply->writeStrongBinder(b);
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} break;
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case REQUEST_GPU: {
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// TODO: this should be protected by a permission
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gpu_info_t info;
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sp<IGPUCallback> callback
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= interface_cast<IGPUCallback>(data.readStrongBinder());
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status_t res = requestGPU(callback, &info);
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// FIXME: for now, we don't dynamically allocate the regions array
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size_t maxCount = sizeof(info.regions)/sizeof(*info.regions);
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if (info.count > maxCount)
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return BAD_VALUE;
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reply->writeStrongBinder(info.regs->asBinder());
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reply->writeInt32(info.count);
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for (size_t i=0 ; i<info.count ; i++) {
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reply->writeStrongBinder(info.regions[i].region->asBinder());
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reply->writeInt32(info.regions[i].reserved);
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}
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reply->writeInt32(res);
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} break;
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default:
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return UNKNOWN_TRANSACTION;
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}
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return NO_ERROR;
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}
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// ----------------------------------------------------------------------------
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enum {
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// Note: BOOT_FINISHED must remain this value, it is called by ActivityManagerService.
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GPU_LOST = IBinder::FIRST_CALL_TRANSACTION
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};
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class BpGPUCallback : public BpInterface<IGPUCallback>
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{
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public:
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BpGPUCallback(const sp<IBinder>& impl)
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: BpInterface<IGPUCallback>(impl)
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{
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}
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virtual void gpuLost()
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{
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Parcel data, reply;
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data.writeInterfaceToken(IGPUCallback::getInterfaceDescriptor());
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remote()->transact(GPU_LOST, data, &reply, IBinder::FLAG_ONEWAY);
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}
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};
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IMPLEMENT_META_INTERFACE(GPUCallback, "android.ui.IGPUCallback");
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status_t BnGPUCallback::onTransact(
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uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
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{
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switch(code) {
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case GPU_LOST: {
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CHECK_INTERFACE(IGPUCallback, data, reply);
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gpuLost();
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return NO_ERROR;
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} break;
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default:
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return BBinder::onTransact(code, data, reply, flags);
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}
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}
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};
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