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 |