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 21namespace android { 22 23status_t layer_state_t::write(Parcel& output) const 24{ 25 status_t err; 26 27 size_t len = transparentRegion.write(NULL, 0); 28 err = output.writeInt32(len); 29 if (err < NO_ERROR) return err; 30 31 void* buf = output.writeInplace(len); 32 if (buf == NULL) return NO_MEMORY; 33 34 err = transparentRegion.write(buf, len); 35 if (err < NO_ERROR) return err; 36 37 // NOTE: regions are at the end of the structure 38 size_t size = sizeof(layer_state_t); 39 size -= sizeof(transparentRegion); 40 err = output.write(this, size); 41 return err; 42} 43 44status_t layer_state_t::read(const Parcel& input) 45{ 46 status_t err; 47 size_t len = input.readInt32(); 48 void const* buf = input.readInplace(len); 49 if (buf == NULL) return NO_MEMORY; 50 51 err = transparentRegion.read(buf); 52 if (err < NO_ERROR) return err; 53 54 // NOTE: regions are at the end of the structure 55 size_t size = sizeof(layer_state_t); 56 size -= sizeof(transparentRegion); 57 input.read(this, size); 58 return NO_ERROR; 59} 60 61}; // namespace android 62