| /* Copyright 2013 Google Inc. All Rights Reserved. |
| |
| Distributed under MIT license. |
| See file LICENSE for detail or copy at https://opensource.org/licenses/MIT |
| */ |
| |
| /* Helper functions for storing integer values into byte streams. |
| No bounds checking is performed, that is the responsibility of the caller. */ |
| |
| #ifndef WOFF2_STORE_BYTES_H_ |
| #define WOFF2_STORE_BYTES_H_ |
| |
| #include <inttypes.h> |
| #include <stddef.h> |
| |
| #if !defined(STARBOARD) |
| #include <cstring> |
| #define MEMCPY_STORE_BYTES memcpy |
| #else |
| #include "starboard/memory.h" |
| #define MEMCPY_STORE_BYTES SbMemoryCopy |
| #endif |
| |
| #include "./port.h" |
| |
| namespace woff2 { |
| |
| inline size_t StoreU32(uint8_t* dst, size_t offset, uint32_t x) { |
| dst[offset] = x >> 24; |
| dst[offset + 1] = x >> 16; |
| dst[offset + 2] = x >> 8; |
| dst[offset + 3] = x; |
| return offset + 4; |
| } |
| |
| inline size_t Store16(uint8_t* dst, size_t offset, int x) { |
| #if defined(WOFF_LITTLE_ENDIAN) |
| *reinterpret_cast<uint16_t*>(dst + offset) = |
| ((x & 0xFF) << 8) | ((x & 0xFF00) >> 8); |
| #elif defined(WOFF_BIG_ENDIAN) |
| *reinterpret_cast<uint16_t*>(dst + offset) = static_cast<uint16_t>(x); |
| #else |
| dst[offset] = x >> 8; |
| dst[offset + 1] = x; |
| #endif |
| return offset + 2; |
| } |
| |
| inline void StoreU32(uint32_t val, size_t* offset, uint8_t* dst) { |
| dst[(*offset)++] = val >> 24; |
| dst[(*offset)++] = val >> 16; |
| dst[(*offset)++] = val >> 8; |
| dst[(*offset)++] = val; |
| } |
| |
| inline void Store16(int val, size_t* offset, uint8_t* dst) { |
| #if defined(WOFF_LITTLE_ENDIAN) |
| *reinterpret_cast<uint16_t*>(dst + *offset) = |
| ((val & 0xFF) << 8) | ((val & 0xFF00) >> 8); |
| *offset += 2; |
| #elif defined(WOFF_BIG_ENDIAN) |
| *reinterpret_cast<uint16_t*>(dst + *offset) = static_cast<uint16_t>(val); |
| *offset += 2; |
| #else |
| dst[(*offset)++] = val >> 8; |
| dst[(*offset)++] = val; |
| #endif |
| } |
| |
| inline void StoreBytes(const uint8_t* data, size_t len, |
| size_t* offset, uint8_t* dst) { |
| MEMCPY_STORE_BYTES(&dst[*offset], data, len); |
| *offset += len; |
| } |
| |
| } // namespace woff2 |
| |
| #undef MEMCPY_STORE_BYTES |
| |
| #endif // WOFF2_STORE_BYTES_H_ |