| Index: third_party/ots/src/hdmx.cc
|
| diff --git a/third_party/ots/src/hdmx.cc b/third_party/ots/src/hdmx.cc
|
| deleted file mode 100644
|
| index 098802b7f261fd6f21bd4d8705e89f170a8c1ab5..0000000000000000000000000000000000000000
|
| --- a/third_party/ots/src/hdmx.cc
|
| +++ /dev/null
|
| @@ -1,142 +0,0 @@
|
| -// Copyright (c) 2009 The Chromium Authors. All rights reserved.
|
| -// Use of this source code is governed by a BSD-style license that can be
|
| -// found in the LICENSE file.
|
| -
|
| -#include "hdmx.h"
|
| -#include "head.h"
|
| -#include "maxp.h"
|
| -
|
| -// hdmx - Horizontal Device Metrics
|
| -// http://www.microsoft.com/typography/otspec/hdmx.htm
|
| -
|
| -#define TABLE_NAME "hdmx"
|
| -
|
| -#define DROP_THIS_TABLE(...) \
|
| - do { \
|
| - OTS_FAILURE_MSG_(file, TABLE_NAME ": " __VA_ARGS__); \
|
| - OTS_FAILURE_MSG("Table discarded"); \
|
| - delete file->hdmx; \
|
| - file->hdmx = 0; \
|
| - } while (0)
|
| -
|
| -namespace ots {
|
| -
|
| -bool ots_hdmx_parse(OpenTypeFile *file, const uint8_t *data, size_t length) {
|
| - Buffer table(data, length);
|
| - file->hdmx = new OpenTypeHDMX;
|
| - OpenTypeHDMX * const hdmx = file->hdmx;
|
| -
|
| - if (!file->head || !file->maxp) {
|
| - return OTS_FAILURE_MSG("Missing maxp or head tables in font, needed by hdmx");
|
| - }
|
| -
|
| - if ((file->head->flags & 0x14) == 0) {
|
| - // http://www.microsoft.com/typography/otspec/recom.htm
|
| - DROP_THIS_TABLE("the table should not be present when bit 2 and 4 of the "
|
| - "head->flags are not set");
|
| - return true;
|
| - }
|
| -
|
| - int16_t num_recs;
|
| - if (!table.ReadU16(&hdmx->version) ||
|
| - !table.ReadS16(&num_recs) ||
|
| - !table.ReadS32(&hdmx->size_device_record)) {
|
| - return OTS_FAILURE_MSG("Failed to read hdmx header");
|
| - }
|
| - if (hdmx->version != 0) {
|
| - DROP_THIS_TABLE("bad version: %u", hdmx->version);
|
| - return true;
|
| - }
|
| - if (num_recs <= 0) {
|
| - DROP_THIS_TABLE("bad num_recs: %d", num_recs);
|
| - return true;
|
| - }
|
| - const int32_t actual_size_device_record = file->maxp->num_glyphs + 2;
|
| - if (hdmx->size_device_record < actual_size_device_record) {
|
| - DROP_THIS_TABLE("bad hdmx->size_device_record: %d", hdmx->size_device_record);
|
| - return true;
|
| - }
|
| -
|
| - hdmx->pad_len = hdmx->size_device_record - actual_size_device_record;
|
| - if (hdmx->pad_len > 3) {
|
| - return OTS_FAILURE_MSG("Bad padding %d", hdmx->pad_len);
|
| - }
|
| -
|
| - uint8_t last_pixel_size = 0;
|
| - hdmx->records.reserve(num_recs);
|
| - for (int i = 0; i < num_recs; ++i) {
|
| - OpenTypeHDMXDeviceRecord rec;
|
| -
|
| - if (!table.ReadU8(&rec.pixel_size) ||
|
| - !table.ReadU8(&rec.max_width)) {
|
| - return OTS_FAILURE_MSG("Failed to read hdmx record %d", i);
|
| - }
|
| - if ((i != 0) &&
|
| - (rec.pixel_size <= last_pixel_size)) {
|
| - DROP_THIS_TABLE("records are not sorted");
|
| - return true;
|
| - }
|
| - last_pixel_size = rec.pixel_size;
|
| -
|
| - rec.widths.reserve(file->maxp->num_glyphs);
|
| - for (unsigned j = 0; j < file->maxp->num_glyphs; ++j) {
|
| - uint8_t width;
|
| - if (!table.ReadU8(&width)) {
|
| - return OTS_FAILURE_MSG("Failed to read glyph width %d in record %d", j, i);
|
| - }
|
| - rec.widths.push_back(width);
|
| - }
|
| -
|
| - if ((hdmx->pad_len > 0) &&
|
| - !table.Skip(hdmx->pad_len)) {
|
| - return OTS_FAILURE_MSG("Failed to skip padding %d", hdmx->pad_len);
|
| - }
|
| -
|
| - hdmx->records.push_back(rec);
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -bool ots_hdmx_should_serialise(OpenTypeFile *file) {
|
| - if (!file->hdmx) return false;
|
| - if (!file->glyf) return false; // this table is not for CFF fonts.
|
| - return true;
|
| -}
|
| -
|
| -bool ots_hdmx_serialise(OTSStream *out, OpenTypeFile *file) {
|
| - OpenTypeHDMX * const hdmx = file->hdmx;
|
| -
|
| - const int16_t num_recs = static_cast<int16_t>(hdmx->records.size());
|
| - if (hdmx->records.size() >
|
| - static_cast<size_t>(std::numeric_limits<int16_t>::max()) ||
|
| - !out->WriteU16(hdmx->version) ||
|
| - !out->WriteS16(num_recs) ||
|
| - !out->WriteS32(hdmx->size_device_record)) {
|
| - return OTS_FAILURE_MSG("Failed to write hdmx header");
|
| - }
|
| -
|
| - for (int16_t i = 0; i < num_recs; ++i) {
|
| - const OpenTypeHDMXDeviceRecord& rec = hdmx->records[i];
|
| - if (!out->Write(&rec.pixel_size, 1) ||
|
| - !out->Write(&rec.max_width, 1) ||
|
| - !out->Write(&rec.widths[0], rec.widths.size())) {
|
| - return OTS_FAILURE_MSG("Failed to write hdmx record %d", i);
|
| - }
|
| - if ((hdmx->pad_len > 0) &&
|
| - !out->Write((const uint8_t *)"\x00\x00\x00", hdmx->pad_len)) {
|
| - return OTS_FAILURE_MSG("Failed to write hdmx padding of length %d", hdmx->pad_len);
|
| - }
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -void ots_hdmx_free(OpenTypeFile *file) {
|
| - delete file->hdmx;
|
| -}
|
| -
|
| -} // namespace ots
|
| -
|
| -#undef TABLE_NAME
|
| -#undef DROP_THIS_TABLE
|
|
|