1 // Copyright 2013 Google Inc. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 // 15 // Helper functions for storing integer values into byte streams. 16 // No bounds checking is performed, that is the responsibility of the caller. 17 18 #ifndef WOFF2_STORE_BYTES_H_ 19 #define WOFF2_STORE_BYTES_H_ 20 21 #include <inttypes.h> 22 #include <stddef.h> 23 #include <string.h> 24 25 namespace woff2 { 26 27 inline size_t StoreU32(uint8_t* dst, size_t offset, uint32_t x) { 28 dst[offset] = x >> 24; 29 dst[offset + 1] = x >> 16; 30 dst[offset + 2] = x >> 8; 31 dst[offset + 3] = x; 32 return offset + 4; 33 } 34 35 inline size_t Store16(uint8_t* dst, size_t offset, int x) { 36 dst[offset] = x >> 8; 37 dst[offset + 1] = x; 38 return offset + 2; 39 } 40 41 inline void StoreU32(uint32_t val, size_t* offset, uint8_t* dst) { 42 dst[(*offset)++] = val >> 24; 43 dst[(*offset)++] = val >> 16; 44 dst[(*offset)++] = val >> 8; 45 dst[(*offset)++] = val; 46 } 47 48 inline void Store16(int val, size_t* offset, uint8_t* dst) { 49 dst[(*offset)++] = val >> 8; 50 dst[(*offset)++] = val; 51 } 52 53 inline void StoreBytes(const uint8_t* data, size_t len, 54 size_t* offset, uint8_t* dst) { 55 memcpy(&dst[*offset], data, len); 56 *offset += len; 57 } 58 59 } // namespace woff2 60 61 #endif // WOFF2_STORE_BYTES_H_ 62
