1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <utils/Errors.h> 18 #include <binder/Parcel.h> 19 #include <private/surfaceflinger/LayerState.h> 20 #include <surfaceflinger/ISurfaceComposerClient.h> 21 22 namespace android { 23 24 status_t layer_state_t::write(Parcel& output) const 25 { 26 status_t err; 27 28 size_t len = transparentRegion.write(NULL, 0); 29 err = output.writeInt32(len); 30 if (err < NO_ERROR) return err; 31 32 void* buf = output.writeInplace(len); 33 if (buf == NULL) return NO_MEMORY; 34 35 err = transparentRegion.write(buf, len); 36 if (err < NO_ERROR) return err; 37 38 // NOTE: regions are at the end of the structure 39 size_t size = sizeof(layer_state_t); 40 size -= sizeof(transparentRegion); 41 err = output.write(this, size); 42 return err; 43 } 44 45 status_t layer_state_t::read(const Parcel& input) 46 { 47 status_t err; 48 size_t len = input.readInt32(); 49 void const* buf = input.readInplace(len); 50 if (buf == NULL) return NO_MEMORY; 51 52 err = transparentRegion.read(buf); 53 if (err < NO_ERROR) return err; 54 55 // NOTE: regions are at the end of the structure 56 size_t size = sizeof(layer_state_t); 57 size -= sizeof(transparentRegion); 58 input.read(this, size); 59 return NO_ERROR; 60 } 61 62 status_t ComposerState::write(Parcel& output) const { 63 output.writeStrongBinder(client->asBinder()); 64 return state.write(output); 65 } 66 67 status_t ComposerState::read(const Parcel& input) { 68 client = interface_cast<ISurfaceComposerClient>(input.readStrongBinder()); 69 return state.read(input); 70 } 71 72 }; // namespace android 73
