1 /* 2 * Copyright 2014 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 <img_utils/EndianUtils.h> 18 19 namespace android { 20 namespace img_utils { 21 22 EndianOutput::EndianOutput(Output* out, Endianness end) 23 : mOffset(0), mOutput(out), mEndian(end) {} 24 25 EndianOutput::~EndianOutput() {} 26 27 status_t EndianOutput::open() { 28 mOffset = 0; 29 return mOutput->open(); 30 } 31 32 status_t EndianOutput::close() { 33 return mOutput->close(); 34 } 35 36 void EndianOutput::setEndianness(Endianness end) { 37 mEndian = end; 38 } 39 40 uint32_t EndianOutput::getCurrentOffset() const { 41 return mOffset; 42 } 43 44 Endianness EndianOutput::getEndianness() const { 45 return mEndian; 46 } 47 48 status_t EndianOutput::write(const uint8_t* buf, size_t offset, size_t count) { 49 status_t res = OK; 50 if((res = mOutput->write(buf, offset, count)) == OK) { 51 mOffset += count; 52 } 53 return res; 54 } 55 56 status_t EndianOutput::write(const int8_t* buf, size_t offset, size_t count) { 57 return write(reinterpret_cast<const uint8_t*>(buf), offset, count); 58 } 59 60 #define DEFINE_WRITE(_type_) \ 61 status_t EndianOutput::write(const _type_* buf, size_t offset, size_t count) { \ 62 return writeHelper<_type_>(buf, offset, count); \ 63 } 64 65 DEFINE_WRITE(uint16_t) 66 DEFINE_WRITE(int16_t) 67 DEFINE_WRITE(uint32_t) 68 DEFINE_WRITE(int32_t) 69 DEFINE_WRITE(uint64_t) 70 DEFINE_WRITE(int64_t) 71 72 status_t EndianOutput::write(const float* buf, size_t offset, size_t count) { 73 assert(sizeof(float) == sizeof(uint32_t)); 74 return writeHelper<uint32_t>(reinterpret_cast<const uint32_t*>(buf), offset, count); 75 } 76 77 status_t EndianOutput::write(const double* buf, size_t offset, size_t count) { 78 assert(sizeof(double) == sizeof(uint64_t)); 79 return writeHelper<uint64_t>(reinterpret_cast<const uint64_t*>(buf), offset, count); 80 } 81 82 } /*namespace img_utils*/ 83 } /*namespace android*/ 84
