LCOV - code coverage report
Current view: top level - gfx/ots/src - cvt.cc (source / functions) Hit Total Coverage
Test: output.info Lines: 0 29 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 5 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : // Copyright (c) 2009 The Chromium Authors. All rights reserved.
       2             : // Use of this source code is governed by a BSD-style license that can be
       3             : // found in the LICENSE file.
       4             : 
       5             : #include "cvt.h"
       6             : 
       7             : // cvt - Control Value Table
       8             : // http://www.microsoft.com/typography/otspec/cvt.htm
       9             : 
      10             : #define TABLE_NAME "cvt"
      11             : 
      12             : namespace ots {
      13             : 
      14           0 : bool ots_cvt_parse(Font *font, const uint8_t *data, size_t length) {
      15           0 :   Buffer table(data, length);
      16             : 
      17           0 :   OpenTypeCVT *cvt = new OpenTypeCVT;
      18           0 :   font->cvt = cvt;
      19             : 
      20           0 :   if (length >= 128 * 1024u) {
      21           0 :     return OTS_FAILURE_MSG("Length (%d) > 120K");  // almost all cvt tables are less than 4k bytes.
      22             :   }
      23             : 
      24           0 :   if (length % 2 != 0) {
      25           0 :     return OTS_FAILURE_MSG("Uneven cvt length (%d)", length);
      26             :   }
      27             : 
      28           0 :   if (!table.Skip(length)) {
      29           0 :     return OTS_FAILURE_MSG("Length too high");
      30             :   }
      31             : 
      32           0 :   cvt->data = data;
      33           0 :   cvt->length = length;
      34           0 :   return true;
      35             : }
      36             : 
      37           0 : bool ots_cvt_should_serialise(Font *font) {
      38           0 :   if (!font->glyf) {
      39           0 :     return false;  // this table is not for CFF fonts.
      40             :   }
      41           0 :   return font->cvt != NULL;
      42             : }
      43             : 
      44           0 : bool ots_cvt_serialise(OTSStream *out, Font *font) {
      45           0 :   const OpenTypeCVT *cvt = font->cvt;
      46             : 
      47           0 :   if (!out->Write(cvt->data, cvt->length)) {
      48           0 :     return OTS_FAILURE_MSG("Failed to write CVT table");
      49             :   }
      50             : 
      51           0 :   return true;
      52             : }
      53             : 
      54           0 : void ots_cvt_reuse(Font *font, Font *other) {
      55           0 :   font->cvt = other->cvt;
      56           0 :   font->cvt_reused = true;
      57           0 : }
      58             : 
      59           0 : void ots_cvt_free(Font *font) {
      60           0 :   delete font->cvt;
      61           0 : }
      62             : 
      63             : }  // namespace ots
      64             : 
      65             : #undef TABLE_NAME

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