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author | Lorry Tar Creator <lorry-tar-importer@lorry> | 2017-06-27 06:07:23 +0000 |
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committer | Lorry Tar Creator <lorry-tar-importer@lorry> | 2017-06-27 06:07:23 +0000 |
commit | 1bf1084f2b10c3b47fd1a588d85d21ed0eb41d0c (patch) | |
tree | 46dcd36c86e7fbc6e5df36deb463b33e9967a6f7 /Source/ThirdParty/woff2/src/store_bytes.h | |
parent | 32761a6cee1d0dee366b885b7b9c777e67885688 (diff) | |
download | WebKitGtk-tarball-master.tar.gz |
webkitgtk-2.16.5HEADwebkitgtk-2.16.5master
Diffstat (limited to 'Source/ThirdParty/woff2/src/store_bytes.h')
-rw-r--r-- | Source/ThirdParty/woff2/src/store_bytes.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/Source/ThirdParty/woff2/src/store_bytes.h b/Source/ThirdParty/woff2/src/store_bytes.h new file mode 100644 index 000000000..74b279c42 --- /dev/null +++ b/Source/ThirdParty/woff2/src/store_bytes.h @@ -0,0 +1,77 @@ +// Copyright 2013 Google Inc. All Rights Reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +// +// 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> +#include <string.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(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)) + *reinterpret_cast<uint16_t*>(dst + offset) = + ((x & 0xFF) << 8) | ((x & 0xFF00) >> 8); +#elif (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_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(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)) + *reinterpret_cast<uint16_t*>(dst + *offset) = + ((val & 0xFF) << 8) | ((val & 0xFF00) >> 8); + *offset += 2; +#elif (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_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(&dst[*offset], data, len); + *offset += len; +} + +} // namespace woff2 + +#endif // WOFF2_STORE_BYTES_H_ |