diff options
Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-src/libs/woff2/src/woff2_common.cc')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-src/libs/woff2/src/woff2_common.cc | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/libs/woff2/src/woff2_common.cc b/Build/source/texk/dvisvgm/dvisvgm-src/libs/woff2/src/woff2_common.cc deleted file mode 100644 index fe0a3beda71..00000000000 --- a/Build/source/texk/dvisvgm/dvisvgm-src/libs/woff2/src/woff2_common.cc +++ /dev/null @@ -1,58 +0,0 @@ -/* Copyright 2013 Google Inc. All Rights Reserved. - - Distributed under MIT license. - See file LICENSE for detail or copy at https://opensource.org/licenses/MIT -*/ - -/* Helpers common across multiple parts of woff2 */ - -#include <algorithm> - -#include "./woff2_common.h" - -#include "./port.h" - -namespace woff2 { - - -uint32_t ComputeULongSum(const uint8_t* buf, size_t size) { - uint32_t checksum = 0; - size_t aligned_size = size & ~3; - for (size_t i = 0; i < aligned_size; i += 4) { -#if defined(WOFF_LITTLE_ENDIAN) - uint32_t v = *reinterpret_cast<const uint32_t*>(buf + i); - checksum += (((v & 0xFF) << 24) | ((v & 0xFF00) << 8) | - ((v & 0xFF0000) >> 8) | ((v & 0xFF000000) >> 24)); -#elif defined(WOFF_BIG_ENDIAN) - checksum += *reinterpret_cast<const uint32_t*>(buf + i); -#else - checksum += (buf[i] << 24) | (buf[i + 1] << 16) | - (buf[i + 2] << 8) | buf[i + 3]; -#endif - } - - // treat size not aligned on 4 as if it were padded to 4 with 0's - if (size != aligned_size) { - uint32_t v = 0; - for (size_t i = aligned_size; i < size; ++i) { - v |= buf[i] << (24 - 8 * (i & 3)); - } - checksum += v; - } - - return checksum; -} - -size_t CollectionHeaderSize(uint32_t header_version, uint32_t num_fonts) { - size_t size = 0; - if (header_version == 0x00020000) { - size += 12; // ulDsig{Tag,Length,Offset} - } - if (header_version == 0x00010000 || header_version == 0x00020000) { - size += 12 // TTCTag, Version, numFonts - + 4 * num_fonts; // OffsetTable[numFonts] - } - return size; -} - -} // namespace woff2 |