1 /* 2 * Copyright 2022 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 #ifndef ULTRAHDR_MULTIPICTUREFORMAT_H 18 #define ULTRAHDR_MULTIPICTUREFORMAT_H 19 20 #include <memory> 21 22 #ifndef USE_BIG_ENDIAN_IN_MPF 23 #define USE_BIG_ENDIAN_IN_MPF true 24 #endif 25 26 #undef Endian_SwapBE32 27 #undef Endian_SwapBE16 28 #if USE_BIG_ENDIAN_IN_MPF 29 #define Endian_SwapBE32(n) EndianSwap32(n) 30 #define Endian_SwapBE16(n) EndianSwap16(n) 31 #else 32 #define Endian_SwapBE32(n) (n) 33 #define Endian_SwapBE16(n) (n) 34 #endif 35 36 #include "ultrahdr/ultrahdr.h" 37 #include "ultrahdr/jpegr.h" 38 #include "ultrahdr/gainmapmath.h" 39 #include "ultrahdr/jpegrutils.h" 40 41 namespace ultrahdr { 42 43 constexpr size_t kNumPictures = 2; 44 constexpr size_t kMpEndianSize = 4; 45 constexpr uint16_t kTagSerializedCount = 3; 46 constexpr uint32_t kTagSize = 12; 47 48 constexpr uint16_t kTypeLong = 0x4; 49 constexpr uint16_t kTypeUndefined = 0x7; 50 51 static constexpr uint8_t kMpfSig[] = {'M', 'P', 'F', '\0'}; 52 constexpr uint8_t kMpLittleEndian[kMpEndianSize] = {0x49, 0x49, 0x2A, 0x00}; 53 constexpr uint8_t kMpBigEndian[kMpEndianSize] = {0x4D, 0x4D, 0x00, 0x2A}; 54 55 constexpr uint16_t kVersionTag = 0xB000; 56 constexpr uint16_t kVersionType = kTypeUndefined; 57 constexpr uint32_t kVersionCount = 4; 58 constexpr size_t kVersionSize = 4; 59 constexpr uint8_t kVersionExpected[kVersionSize] = {'0', '1', '0', '0'}; 60 61 constexpr uint16_t kNumberOfImagesTag = 0xB001; 62 constexpr uint16_t kNumberOfImagesType = kTypeLong; 63 constexpr uint32_t kNumberOfImagesCount = 1; 64 65 constexpr uint16_t kMPEntryTag = 0xB002; 66 constexpr uint16_t kMPEntryType = kTypeUndefined; 67 constexpr uint32_t kMPEntrySize = 16; 68 69 constexpr uint32_t kMPEntryAttributeFormatJpeg = 0x0000000; 70 constexpr uint32_t kMPEntryAttributeTypePrimary = 0x030000; 71 72 size_t calculateMpfSize(); 73 std::shared_ptr<DataStruct> generateMpf(int primary_image_size, int primary_image_offset, 74 int secondary_image_size, int secondary_image_offset); 75 76 } // namespace ultrahdr 77 78 #endif // ULTRAHDR_MULTIPICTUREFORMAT_H 79