summaryrefslogtreecommitdiffstats
path: root/vcl/source/fontsubset/ttcr.cxx
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--vcl/source/fontsubset/ttcr.cxx1526
1 files changed, 1526 insertions, 0 deletions
diff --git a/vcl/source/fontsubset/ttcr.cxx b/vcl/source/fontsubset/ttcr.cxx
new file mode 100644
index 000000000..40729ffd1
--- /dev/null
+++ b/vcl/source/fontsubset/ttcr.cxx
@@ -0,0 +1,1526 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you 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 .
+ */
+
+/*
+ * TrueTypeCreator method implementation
+ */
+
+#include <iomanip>
+#include <assert.h>
+
+#include <sal/log.hxx>
+
+#include "ttcr.hxx"
+#include "list.h"
+#include <string.h>
+
+namespace vcl
+{
+
+/*
+ * Private Data Types
+ */
+
+ struct TrueTypeCreator {
+ sal_uInt32 tag; /**< TrueType file tag */
+ list tables; /**< List of table tags and pointers */
+ };
+
+namespace {
+
+struct TableEntry {
+ sal_uInt32 tag;
+ sal_uInt32 length;
+ sal_uInt8 *data;
+};
+
+}
+
+/*- Data access macros for data stored in big-endian or little-endian format */
+static sal_Int16 GetInt16( const sal_uInt8* ptr, sal_uInt32 offset)
+{
+ assert(ptr != nullptr);
+ sal_Int16 t = (ptr+offset)[0] << 8 | (ptr+offset)[1];
+ return t;
+}
+
+static sal_uInt16 GetUInt16( const sal_uInt8* ptr, sal_uInt32 offset)
+{
+ assert(ptr != nullptr);
+ sal_uInt16 t = (ptr+offset)[0] << 8 | (ptr+offset)[1];
+ return t;
+}
+
+static void PutInt16(sal_Int16 val, sal_uInt8 *ptr, sal_uInt32 offset)
+{
+ assert(ptr != nullptr);
+
+ ptr[offset] = static_cast<sal_uInt8>((val >> 8) & 0xFF);
+ ptr[offset+1] = static_cast<sal_uInt8>(val & 0xFF);
+}
+
+static void PutUInt16(sal_uInt16 val, sal_uInt8 *ptr, sal_uInt32 offset)
+{
+ assert(ptr != nullptr);
+
+ ptr[offset] = static_cast<sal_uInt8>((val >> 8) & 0xFF);
+ ptr[offset+1] = static_cast<sal_uInt8>(val & 0xFF);
+}
+
+static void PutUInt32(sal_uInt32 val, sal_uInt8 *ptr, sal_uInt32 offset)
+{
+ assert(ptr != nullptr);
+
+ ptr[offset] = static_cast<sal_uInt8>((val >> 24) & 0xFF);
+ ptr[offset+1] = static_cast<sal_uInt8>((val >> 16) & 0xFF);
+ ptr[offset+2] = static_cast<sal_uInt8>((val >> 8) & 0xFF);
+ ptr[offset+3] = static_cast<sal_uInt8>(val & 0xFF);
+}
+
+static int TableEntryCompareF(const void *l, const void *r)
+{
+ sal_uInt32 const ltag(static_cast<TableEntry const*>(l)->tag);
+ sal_uInt32 const rtag(static_cast<TableEntry const*>(r)->tag);
+ return (ltag == rtag) ? 0 : (ltag < rtag) ? -1 : 1;
+}
+
+static int NameRecordCompareF(const void *l, const void *r)
+{
+ NameRecord const *ll = static_cast<NameRecord const *>(l);
+ NameRecord const *rr = static_cast<NameRecord const *>(r);
+
+ if (ll->platformID != rr->platformID) {
+ return (ll->platformID < rr->platformID) ? -1 : 1;
+ } else if (ll->encodingID != rr->encodingID) {
+ return (ll->encodingID < rr->encodingID) ? -1 : 1;
+ } else if (ll->languageID != rr->languageID) {
+ return (ll->languageID < rr->languageID) ? -1 : 1;
+ } else if (ll->nameID != rr->nameID) {
+ return (ll->nameID < rr->nameID) ? -1 : 1;
+ }
+ return 0;
+}
+
+static sal_uInt32 CheckSum(sal_uInt32 *ptr, sal_uInt32 length)
+{
+ sal_uInt32 sum = 0;
+ sal_uInt32 *endptr = ptr + ((length + 3) & sal_uInt32(~3)) / 4;
+
+ while (ptr < endptr) sum += *ptr++;
+
+ return sum;
+}
+
+static void *smalloc(sal_uInt32 size)
+{
+ void *res = malloc(size);
+ assert(res != nullptr);
+ return res;
+}
+
+static void *scalloc(sal_uInt32 n, sal_uInt32 size)
+{
+ void *res = calloc(n, size);
+ assert(res != nullptr);
+ return res;
+}
+
+/*
+ * Public functions
+ */
+
+void TrueTypeCreatorNewEmpty(sal_uInt32 tag, TrueTypeCreator **_this)
+{
+ TrueTypeCreator* ptr = static_cast<TrueTypeCreator*>(smalloc(sizeof(TrueTypeCreator)));
+
+ ptr->tables = listNewEmpty();
+ listSetElementDtor(ptr->tables, TrueTypeTableDispose);
+
+ ptr->tag = tag;
+
+ *_this = ptr;
+}
+
+void AddTable(TrueTypeCreator *_this, TrueTypeTable *table)
+{
+ if (table != nullptr) {
+ listAppend(_this->tables, table);
+ }
+}
+
+void RemoveTable(TrueTypeCreator *_this, sal_uInt32 tag)
+{
+ if (!listCount(_this->tables))
+ return;
+
+ listToFirst(_this->tables);
+ int done = 0;
+ do {
+ if (static_cast<TrueTypeTable *>(listCurrent(_this->tables))->tag == tag)
+ {
+ listRemove(_this->tables);
+ }
+ else
+ {
+ if (listNext(_this->tables))
+ {
+ done = 1;
+ }
+ }
+ } while (!done);
+}
+
+static void ProcessTables(TrueTypeCreator *);
+
+SFErrCodes StreamToMemory(TrueTypeCreator *_this, sal_uInt8 **ptr, sal_uInt32 *length)
+{
+ sal_uInt16 searchRange=1, entrySelector=0, rangeShift;
+ sal_uInt32 s, offset, checkSumAdjustment = 0;
+ sal_uInt32 *p;
+ sal_uInt8 *head = nullptr; /* saved pointer to the head table data for checkSumAdjustment calculation */
+
+ if (listIsEmpty(_this->tables)) return SFErrCodes::TtFormat;
+
+ ProcessTables(_this);
+
+ /* ProcessTables() adds 'loca' and 'hmtx' */
+
+ sal_uInt16 numTables = listCount(_this->tables);
+
+ TableEntry* te = static_cast<TableEntry*>(scalloc(numTables, sizeof(TableEntry)));
+ TableEntry* e = te;
+
+ listToFirst(_this->tables);
+ do {
+ GetRawData(static_cast<TrueTypeTable *>(listCurrent(_this->tables)), &e->data, &e->length, &e->tag);
+ ++e;
+ } while (listNext(_this->tables));
+
+ qsort(te, numTables, sizeof(TableEntry), TableEntryCompareF);
+
+ do {
+ searchRange *= 2;
+ entrySelector++;
+ } while (searchRange <= numTables);
+
+ searchRange *= 8;
+ entrySelector--;
+ rangeShift = numTables * 16 - searchRange;
+
+ s = offset = 12 + 16 * numTables;
+
+ for (int i = 0; i < numTables; ++i) {
+ s += (te[i].length + 3) & sal_uInt32(~3);
+ /* if ((te[i].length & 3) != 0) s += (4 - (te[i].length & 3)) & 3; */
+ }
+
+ sal_uInt8* ttf = static_cast<sal_uInt8*>(smalloc(s));
+
+ /* Offset Table */
+ PutUInt32(_this->tag, ttf, 0);
+ PutUInt16(numTables, ttf, 4);
+ PutUInt16(searchRange, ttf, 6);
+ PutUInt16(entrySelector, ttf, 8);
+ PutUInt16(rangeShift, ttf, 10);
+
+ /* Table Directory */
+ for (int i = 0; i < numTables; ++i) {
+ PutUInt32(te[i].tag, ttf + 12, 16 * i);
+ PutUInt32(CheckSum(reinterpret_cast<sal_uInt32 *>(te[i].data), te[i].length), ttf + 12, 16 * i + 4);
+ PutUInt32(offset, ttf + 12, 16 * i + 8);
+ PutUInt32(te[i].length, ttf + 12, 16 * i + 12);
+
+ if (te[i].tag == T_head) {
+ head = ttf + offset;
+ }
+
+ memcpy(ttf+offset, te[i].data, (te[i].length + 3) & sal_uInt32(~3) );
+ offset += (te[i].length + 3) & sal_uInt32(~3);
+ /* if ((te[i].length & 3) != 0) offset += (4 - (te[i].length & 3)) & 3; */
+ }
+
+ free(te);
+
+ p = reinterpret_cast<sal_uInt32 *>(ttf);
+ for (int i = 0; i < static_cast<int>(s) / 4; ++i) checkSumAdjustment += p[i];
+ PutUInt32(0xB1B0AFBA - checkSumAdjustment, head, 8);
+
+ *ptr = ttf;
+ *length = s;
+
+ return SFErrCodes::Ok;
+}
+
+SFErrCodes StreamToFile(TrueTypeCreator *_this, const char* fname)
+{
+ sal_uInt8 *ptr;
+ sal_uInt32 length;
+ SFErrCodes r;
+
+ if ((r = StreamToMemory(_this, &ptr, &length)) != SFErrCodes::Ok) return r;
+ r = SFErrCodes::BadFile;
+ if (fname)
+ {
+ FILE* fd = fopen(fname, "wb");
+ if (fd)
+ {
+ if (fwrite(ptr, 1, length, fd) != length) {
+ r = SFErrCodes::FileIo;
+ } else {
+ r = SFErrCodes::Ok;
+ }
+ fclose(fd);
+ }
+ }
+ free(ptr);
+ return r;
+}
+
+/*
+ * TrueTypeTable private methods
+ */
+
+/* Table data points to
+ * --------------------------------------------
+ * generic tdata_generic struct
+ * 'head' HEAD_Length bytes of memory
+ * 'hhea' HHEA_Length bytes of memory
+ * 'loca' tdata_loca struct
+ * 'maxp' MAXP_Version1Length bytes of memory
+ * 'glyf' list of GlyphData structs (defined in sft.h)
+ * 'name' list of NameRecord structs (defined in sft.h)
+ * 'post' tdata_post struct
+ *
+ */
+
+#define CMAP_SUBTABLE_INIT 10
+#define CMAP_SUBTABLE_INCR 10
+#define CMAP_PAIR_INIT 500
+#define CMAP_PAIR_INCR 500
+
+namespace {
+
+struct CmapSubTable {
+ sal_uInt32 id; /* subtable ID (platform/encoding ID) */
+ sal_uInt32 n; /* number of used translation pairs */
+ sal_uInt32 m; /* number of allocated translation pairs */
+ sal_uInt32 *xc; /* character array */
+ sal_uInt32 *xg; /* glyph array */
+};
+
+struct table_cmap {
+ sal_uInt32 n; /* number of used CMAP sub-tables */
+ sal_uInt32 m; /* number of allocated CMAP sub-tables */
+ CmapSubTable *s; /* sorted array of sub-tables */
+};
+
+struct tdata_generic {
+ sal_uInt32 tag;
+ sal_uInt32 nbytes;
+ sal_uInt8 *ptr;
+};
+
+struct tdata_loca {
+ sal_uInt32 nbytes; /* number of bytes in loca table */
+ sal_uInt8 *ptr; /* pointer to the data */
+};
+
+struct tdata_post {
+ sal_uInt32 format;
+ sal_uInt32 italicAngle;
+ sal_Int16 underlinePosition;
+ sal_Int16 underlineThickness;
+ sal_uInt32 isFixedPitch;
+ void *ptr; /* format-specific pointer */
+};
+
+}
+
+/* allocate memory for a TT table */
+static sal_uInt8 *ttmalloc(sal_uInt32 nbytes)
+{
+ sal_uInt32 n;
+
+ n = (nbytes + 3) & sal_uInt32(~3);
+ sal_uInt8* res = static_cast<sal_uInt8*>(calloc(n, 1));
+ assert(res != nullptr);
+
+ return res;
+}
+
+static void FreeGlyphData(void *ptr)
+{
+ GlyphData *p = static_cast<GlyphData *>(ptr);
+ if (p->ptr) free(p->ptr);
+ free(p);
+}
+
+static void TrueTypeTableDispose_generic(TrueTypeTable *_this)
+{
+ if (_this) {
+ if (_this->data) {
+ tdata_generic *pdata = static_cast<tdata_generic *>(_this->data);
+ if (pdata->nbytes) free(pdata->ptr);
+ free(_this->data);
+ }
+ free(_this);
+ }
+}
+
+static void TrueTypeTableDispose_head(TrueTypeTable *_this)
+{
+ if (_this) {
+ if (_this->data) free(_this->data);
+ free(_this);
+ }
+}
+
+static void TrueTypeTableDispose_hhea(TrueTypeTable *_this)
+{
+ if (_this) {
+ if (_this->data) free(_this->data);
+ free(_this);
+ }
+}
+
+static void TrueTypeTableDispose_loca(TrueTypeTable *_this)
+{
+ if (_this) {
+ if (_this->data) {
+ tdata_loca *p = static_cast<tdata_loca *>(_this->data);
+ if (p->ptr) free(p->ptr);
+ free(_this->data);
+ }
+ free(_this);
+ }
+}
+
+static void TrueTypeTableDispose_maxp(TrueTypeTable *_this)
+{
+ if (_this) {
+ if (_this->data) free(_this->data);
+ free(_this);
+ }
+}
+
+static void TrueTypeTableDispose_glyf(TrueTypeTable *_this)
+{
+ if (_this) {
+ if (_this->data) listDispose(static_cast<list>(_this->data));
+ free(_this);
+ }
+}
+
+static void TrueTypeTableDispose_cmap(TrueTypeTable *_this)
+{
+ if (!_this) return;
+
+ table_cmap *t = static_cast<table_cmap *>(_this->data);
+ if (t) {
+ CmapSubTable *s = t->s;
+ if (s) {
+ for (sal_uInt32 i = 0; i < t->m; i++) {
+ if (s[i].xc) free(s[i].xc);
+ if (s[i].xg) free(s[i].xg);
+ }
+ free(s);
+ }
+ free(t);
+ }
+ free(_this);
+}
+
+static void TrueTypeTableDispose_name(TrueTypeTable *_this)
+{
+ if (_this) {
+ if (_this->data) listDispose(static_cast<list>(_this->data));
+ free(_this);
+ }
+}
+
+static void TrueTypeTableDispose_post(TrueTypeTable *_this)
+{
+ if (!_this) return;
+
+ tdata_post *p = static_cast<tdata_post *>(_this->data);
+ if (p) {
+ if (p->format == 0x00030000) {
+ /* do nothing */
+ } else {
+ SAL_WARN("vcl.fonts", "Unsupported format of a 'post' table: "
+ << std::setfill('0')
+ << std::setw(8)
+ << std::hex
+ << std::uppercase
+ << static_cast<int>(p->format) << ".");
+ }
+ free(p);
+ }
+ free(_this);
+}
+
+/* destructor vtable */
+
+struct {
+ sal_uInt32 tag;
+ void (*f)(TrueTypeTable *);
+} const vtable1[] =
+{
+ {0, TrueTypeTableDispose_generic},
+ {T_head, TrueTypeTableDispose_head},
+ {T_hhea, TrueTypeTableDispose_hhea},
+ {T_loca, TrueTypeTableDispose_loca},
+ {T_maxp, TrueTypeTableDispose_maxp},
+ {T_glyf, TrueTypeTableDispose_glyf},
+ {T_cmap, TrueTypeTableDispose_cmap},
+ {T_name, TrueTypeTableDispose_name},
+ {T_post, TrueTypeTableDispose_post}
+
+};
+
+static int GetRawData_generic(TrueTypeTable *_this, sal_uInt8 **ptr, sal_uInt32 *len, sal_uInt32 *tag)
+{
+ assert(_this != nullptr);
+ assert(_this->data != nullptr);
+
+ *ptr = static_cast<tdata_generic *>(_this->data)->ptr;
+ *len = static_cast<tdata_generic *>(_this->data)->nbytes;
+ *tag = static_cast<tdata_generic *>(_this->data)->tag;
+
+ return TTCR_OK;
+}
+
+static int GetRawData_head(TrueTypeTable *_this, sal_uInt8 **ptr, sal_uInt32 *len, sal_uInt32 *tag)
+{
+ *len = HEAD_Length;
+ *ptr = static_cast<sal_uInt8 *>(_this->data);
+ *tag = T_head;
+
+ return TTCR_OK;
+}
+
+static int GetRawData_hhea(TrueTypeTable *_this, sal_uInt8 **ptr, sal_uInt32 *len, sal_uInt32 *tag)
+{
+ *len = HHEA_Length;
+ *ptr = static_cast<sal_uInt8 *>(_this->data);
+ *tag = T_hhea;
+
+ return TTCR_OK;
+}
+
+static int GetRawData_loca(TrueTypeTable *_this, sal_uInt8 **ptr, sal_uInt32 *len, sal_uInt32 *tag)
+{
+ tdata_loca *p;
+
+ assert(_this->data != nullptr);
+
+ p = static_cast<tdata_loca *>(_this->data);
+
+ if (p->nbytes == 0) return TTCR_ZEROGLYPHS;
+
+ *ptr = p->ptr;
+ *len = p->nbytes;
+ *tag = T_loca;
+
+ return TTCR_OK;
+}
+
+static int GetRawData_maxp(TrueTypeTable *_this, sal_uInt8 **ptr, sal_uInt32 *len, sal_uInt32 *tag)
+{
+ *len = MAXP_Version1Length;
+ *ptr = static_cast<sal_uInt8 *>(_this->data);
+ *tag = T_maxp;
+
+ return TTCR_OK;
+}
+
+static int GetRawData_glyf(TrueTypeTable *_this, sal_uInt8 **ptr, sal_uInt32 *len, sal_uInt32 *tag)
+{
+ sal_uInt32 n, nbytes = 0;
+ list l = static_cast<list>(_this->data);
+ /* sal_uInt16 curID = 0; */ /* to check if glyph IDs are sequential and start from zero */
+ sal_uInt8 *p;
+
+ *ptr = nullptr;
+ *len = 0;
+ *tag = 0;
+
+ if (listCount(l) == 0) return TTCR_ZEROGLYPHS;
+
+ listToFirst(l);
+ do {
+ /* if (((GlyphData *) listCurrent(l))->glyphID != curID++) return TTCR_GLYPHSEQ; */
+ nbytes += static_cast<GlyphData *>(listCurrent(l))->nbytes;
+ } while (listNext(l));
+
+ p = _this->rawdata = ttmalloc(nbytes);
+
+ listToFirst(l);
+ do {
+ n = static_cast<GlyphData *>(listCurrent(l))->nbytes;
+ if (n != 0) {
+ memcpy(p, static_cast<GlyphData *>(listCurrent(l))->ptr, n);
+ p += n;
+ }
+ } while (listNext(l));
+
+ *len = nbytes;
+ *ptr = _this->rawdata;
+ *tag = T_glyf;
+
+ return TTCR_OK;
+}
+
+/* cmap packers */
+static sal_uInt8 *PackCmapType0(CmapSubTable const *s, sal_uInt32 *length)
+{
+ sal_uInt8* ptr = static_cast<sal_uInt8*>(smalloc(262));
+ sal_uInt8 *p = ptr + 6;
+ sal_uInt32 i, j;
+ sal_uInt16 g;
+
+ PutUInt16(0, ptr, 0);
+ PutUInt16(262, ptr, 2);
+ PutUInt16(0, ptr, 4);
+
+ for (i = 0; i < 256; i++) {
+ g = 0;
+ for (j = 0; j < s->n; j++) {
+ if (s->xc[j] == i) {
+ g = static_cast<sal_uInt16>(s->xg[j]);
+ }
+ }
+ p[i] = static_cast<sal_uInt8>(g);
+ }
+ *length = 262;
+ return ptr;
+}
+
+static sal_uInt8 *PackCmapType6(CmapSubTable const *s, sal_uInt32 *length)
+{
+ sal_uInt8* ptr = static_cast<sal_uInt8*>(smalloc(s->n*2 + 10));
+ sal_uInt8 *p = ptr + 10;
+ sal_uInt32 i, j;
+ sal_uInt16 g;
+
+ PutUInt16(6, ptr, 0);
+ PutUInt16(static_cast<sal_uInt16>(s->n*2+10), ptr, 2);
+ PutUInt16(0, ptr, 4);
+ PutUInt16(0, ptr, 6);
+ PutUInt16(static_cast<sal_uInt16>(s->n), ptr, 8 );
+
+ for (i = 0; i < s->n; i++) {
+ g = 0;
+ for (j = 0; j < s->n; j++) {
+ if (s->xc[j] == i) {
+ g = static_cast<sal_uInt16>(s->xg[j]);
+ }
+ }
+ PutUInt16( g, p, 2*i );
+ }
+ *length = s->n*2+10;
+ return ptr;
+}
+
+/* XXX it only handles Format 0 encoding tables */
+static sal_uInt8 *PackCmap(CmapSubTable const *s, sal_uInt32 *length)
+{
+ if( s->xg[s->n-1] > 0xff )
+ return PackCmapType6(s, length);
+ else
+ return PackCmapType0(s, length);
+}
+
+static int GetRawData_cmap(TrueTypeTable *_this, sal_uInt8 **ptr, sal_uInt32 *len, sal_uInt32 *tag)
+{
+ table_cmap *t;
+ sal_uInt32 i;
+ sal_uInt32 tlen = 0;
+ sal_uInt32 l;
+ sal_uInt32 cmapsize;
+ sal_uInt8 *cmap;
+ sal_uInt32 coffset;
+
+ assert(_this != nullptr);
+ t = static_cast<table_cmap *>(_this->data);
+ assert(t != nullptr);
+ assert(t->n != 0);
+
+ sal_uInt8** subtables = static_cast<sal_uInt8**>(scalloc(t->n, sizeof(sal_uInt8 *)));
+ sal_uInt32* sizes = static_cast<sal_uInt32*>(scalloc(t->n, sizeof(sal_uInt32)));
+
+ for (i = 0; i < t->n; i++) {
+ subtables[i] = PackCmap(t->s+i, &l);
+ sizes[i] = l;
+ tlen += l;
+ }
+
+ cmapsize = tlen + 4 + 8 * t->n;
+ _this->rawdata = cmap = ttmalloc(cmapsize);
+
+ PutUInt16(0, cmap, 0);
+ PutUInt16(static_cast<sal_uInt16>(t->n), cmap, 2);
+ coffset = 4 + t->n * 8;
+
+ for (i = 0; i < t->n; i++) {
+ PutUInt16(static_cast<sal_uInt16>(t->s[i].id >> 16), cmap + 4, i * 8);
+ PutUInt16(static_cast<sal_uInt16>(t->s[i].id & 0xFF), cmap + 4, 2 + i * 8);
+ PutUInt32(coffset, cmap + 4, 4 + i * 8);
+ memcpy(cmap + coffset, subtables[i], sizes[i]);
+ free(subtables[i]);
+ coffset += sizes[i];
+ }
+
+ free(subtables);
+ free(sizes);
+
+ *ptr = cmap;
+ *len = cmapsize;
+ *tag = T_cmap;
+
+ return TTCR_OK;
+}
+
+static int GetRawData_name(TrueTypeTable *_this, sal_uInt8 **ptr, sal_uInt32 *len, sal_uInt32 *tag)
+{
+ list l;
+ sal_Int16 i=0, n; /* number of Name Records */
+ int stringLen = 0;
+ sal_uInt8 *p1, *p2;
+
+ *ptr = nullptr;
+ *len = 0;
+ *tag = 0;
+
+ assert(_this != nullptr);
+ l = static_cast<list>(_this->data);
+ assert(l != nullptr);
+
+ if ((n = static_cast<sal_Int16>(listCount(l))) == 0) return TTCR_NONAMES;
+
+ NameRecord* nr = static_cast<NameRecord*>(scalloc(n, sizeof(NameRecord)));
+
+ listToFirst(l);
+
+ do {
+ memcpy(nr+i, listCurrent(l), sizeof(NameRecord));
+ stringLen += nr[i].slen;
+ i++;
+ } while (listNext(l));
+
+ if (stringLen > 65535) {
+ free(nr);
+ return TTCR_NAMETOOLONG;
+ }
+
+ qsort(nr, n, sizeof(NameRecord), NameRecordCompareF);
+
+ int nameLen = stringLen + 12 * n + 6;
+ sal_uInt8* name = ttmalloc(nameLen);
+
+ PutUInt16(0, name, 0);
+ PutUInt16(n, name, 2);
+ PutUInt16(static_cast<sal_uInt16>(6 + 12 * n), name, 4);
+
+ p1 = name + 6;
+ p2 = p1 + 12 * n;
+
+ for (i = 0; i < n; i++) {
+ PutUInt16(nr[i].platformID, p1, 0);
+ PutUInt16(nr[i].encodingID, p1, 2);
+ PutUInt16(static_cast<sal_uInt16>(nr[i].languageID), p1, 4);
+ PutUInt16(nr[i].nameID, p1, 6);
+ PutUInt16(nr[i].slen, p1, 8);
+ PutUInt16(static_cast<sal_uInt16>(p2 - (name + 6 + 12 * n)), p1, 10);
+ if (nr[i].slen) {
+ memcpy(p2, nr[i].sptr, nr[i].slen);
+ }
+ /* {int j; for(j=0; j<nr[i].slen; j++) printf("%c", nr[i].sptr[j]); printf("\n"); }; */
+ p2 += nr[i].slen;
+ p1 += 12;
+ }
+
+ free(nr);
+ _this->rawdata = name;
+
+ *ptr = name;
+ *len = static_cast<sal_uInt16>(nameLen);
+ *tag = T_name;
+
+ /*{int j; for(j=0; j<nameLen; j++) printf("%c", name[j]); }; */
+
+ return TTCR_OK;
+}
+
+static int GetRawData_post(TrueTypeTable *_this, sal_uInt8 **ptr, sal_uInt32 *len, sal_uInt32 *tag)
+{
+ tdata_post *p = static_cast<tdata_post *>(_this->data);
+ sal_uInt8 *post = nullptr;
+ sal_uInt32 postLen = 0;
+ int ret;
+
+ if (_this->rawdata) free(_this->rawdata);
+
+ if (p->format == 0x00030000) {
+ postLen = 32;
+ post = ttmalloc(postLen);
+ PutUInt32(0x00030000, post, 0);
+ PutUInt32(p->italicAngle, post, 4);
+ PutUInt16(p->underlinePosition, post, 8);
+ PutUInt16(p->underlineThickness, post, 10);
+ PutUInt16(static_cast<sal_uInt16>(p->isFixedPitch), post, 12);
+ ret = TTCR_OK;
+ } else {
+ SAL_WARN("vcl.fonts", "Unrecognized format of a post table: "
+ << std::setfill('0')
+ << std::setw(8)
+ << std::hex
+ << std::uppercase
+ << static_cast<int>(p->format) << ".");
+ ret = TTCR_POSTFORMAT;
+ }
+
+ *ptr = _this->rawdata = post;
+ *len = postLen;
+ *tag = T_post;
+
+ return ret;
+}
+
+struct {
+ sal_uInt32 tag;
+ int (*f)(TrueTypeTable *, sal_uInt8 **, sal_uInt32 *, sal_uInt32 *);
+} const vtable2[] =
+{
+ {0, GetRawData_generic},
+ {T_head, GetRawData_head},
+ {T_hhea, GetRawData_hhea},
+ {T_loca, GetRawData_loca},
+ {T_maxp, GetRawData_maxp},
+ {T_glyf, GetRawData_glyf},
+ {T_cmap, GetRawData_cmap},
+ {T_name, GetRawData_name},
+ {T_post, GetRawData_post}
+
+};
+
+/*
+ * TrueTypeTable public methods
+ */
+
+/* Note: Type42 fonts only need these tables:
+ * head, hhea, loca, maxp, cvt, prep, glyf, hmtx, fpgm
+ *
+ * Microsoft required tables
+ * cmap, glyf, head, hhea, hmtx, loca, maxp, name, post, OS/2
+ *
+ * Apple required tables
+ * cmap, glyf, head, hhea, hmtx, loca, maxp, name, post
+ *
+ */
+
+TrueTypeTable *TrueTypeTableNew(sal_uInt32 tag,
+ sal_uInt32 nbytes,
+ const sal_uInt8* ptr)
+{
+ TrueTypeTable* table = static_cast<TrueTypeTable*>(smalloc(sizeof(TrueTypeTable)));
+ tdata_generic* pdata = static_cast<tdata_generic*>(smalloc(sizeof(tdata_generic)));
+ pdata->nbytes = nbytes;
+ pdata->tag = tag;
+ if (nbytes) {
+ pdata->ptr = ttmalloc(nbytes);
+ memcpy(pdata->ptr, ptr, nbytes);
+ } else {
+ pdata->ptr = nullptr;
+ }
+
+ table->tag = 0;
+ table->data = pdata;
+ table->rawdata = nullptr;
+
+ return table;
+}
+
+TrueTypeTable *TrueTypeTableNew_head(sal_uInt32 fontRevision,
+ sal_uInt16 flags,
+ sal_uInt16 unitsPerEm,
+ const sal_uInt8* created,
+ sal_uInt16 macStyle,
+ sal_uInt16 lowestRecPPEM,
+ sal_Int16 fontDirectionHint)
+{
+ assert(created != nullptr);
+
+ TrueTypeTable* table = static_cast<TrueTypeTable*>(smalloc(sizeof(TrueTypeTable)));
+ sal_uInt8* ptr = ttmalloc(HEAD_Length);
+
+ PutUInt32(0x00010000, ptr, 0); /* version */
+ PutUInt32(fontRevision, ptr, 4);
+ PutUInt32(0x5F0F3CF5, ptr, 12); /* magic number */
+ PutUInt16(flags, ptr, 16);
+ PutUInt16(unitsPerEm, ptr, 18);
+ memcpy(ptr+20, created, 8); /* Created Long Date */
+ memset(ptr+28, 0, 8); /* Modified Long Date */
+ PutUInt16(macStyle, ptr, 44);
+ PutUInt16(lowestRecPPEM, ptr, 46);
+ PutUInt16(fontDirectionHint, ptr, 48);
+ PutUInt16(0, ptr, 52); /* glyph data format: 0 */
+
+ table->data = static_cast<void *>(ptr);
+ table->tag = T_head;
+ table->rawdata = nullptr;
+
+ return table;
+}
+
+TrueTypeTable *TrueTypeTableNew_hhea(sal_Int16 ascender,
+ sal_Int16 descender,
+ sal_Int16 linegap,
+ sal_Int16 caretSlopeRise,
+ sal_Int16 caretSlopeRun)
+{
+ TrueTypeTable* table = static_cast<TrueTypeTable*>(smalloc(sizeof(TrueTypeTable)));
+ sal_uInt8* ptr = ttmalloc(HHEA_Length);
+
+ PutUInt32(0x00010000, ptr, 0); /* version */
+ PutUInt16(ascender, ptr, 4);
+ PutUInt16(descender, ptr, 6);
+ PutUInt16(linegap, ptr, 8);
+ PutUInt16(caretSlopeRise, ptr, 18);
+ PutUInt16(caretSlopeRun, ptr, 20);
+ PutUInt16(0, ptr, 22); /* reserved 1 */
+ PutUInt16(0, ptr, 24); /* reserved 2 */
+ PutUInt16(0, ptr, 26); /* reserved 3 */
+ PutUInt16(0, ptr, 28); /* reserved 4 */
+ PutUInt16(0, ptr, 30); /* reserved 5 */
+ PutUInt16(0, ptr, 32); /* metricDataFormat */
+
+ table->data = static_cast<void *>(ptr);
+ table->tag = T_hhea;
+ table->rawdata = nullptr;
+
+ return table;
+}
+
+TrueTypeTable *TrueTypeTableNew_loca()
+{
+ TrueTypeTable* table = static_cast<TrueTypeTable*>(smalloc(sizeof(TrueTypeTable)));
+ table->data = smalloc(sizeof(tdata_loca));
+
+ static_cast<tdata_loca *>(table->data)->nbytes = 0;
+ static_cast<tdata_loca *>(table->data)->ptr = nullptr;
+
+ table->tag = T_loca;
+ table->rawdata = nullptr;
+
+ return table;
+}
+
+TrueTypeTable *TrueTypeTableNew_maxp( const sal_uInt8* maxp, int size)
+{
+ TrueTypeTable* table = static_cast<TrueTypeTable*>(smalloc(sizeof(TrueTypeTable)));
+ table->data = ttmalloc(MAXP_Version1Length);
+
+ if (maxp && size == MAXP_Version1Length) {
+ memcpy(table->data, maxp, MAXP_Version1Length);
+ }
+
+ table->tag = T_maxp;
+ table->rawdata = nullptr;
+
+ return table;
+}
+
+TrueTypeTable *TrueTypeTableNew_glyf()
+{
+ TrueTypeTable* table = static_cast<TrueTypeTable*>(smalloc(sizeof(TrueTypeTable)));
+ list l = listNewEmpty();
+
+ assert(l != nullptr);
+
+ listSetElementDtor(l, FreeGlyphData);
+
+ table->data = l;
+ table->rawdata = nullptr;
+ table->tag = T_glyf;
+
+ return table;
+}
+
+TrueTypeTable *TrueTypeTableNew_cmap()
+{
+ TrueTypeTable* table = static_cast<TrueTypeTable*>(smalloc(sizeof(TrueTypeTable)));
+ table_cmap* cmap = static_cast<table_cmap*>(smalloc(sizeof(table_cmap)));
+
+ cmap->n = 0;
+ cmap->m = CMAP_SUBTABLE_INIT;
+ cmap->s = static_cast<CmapSubTable *>(scalloc(CMAP_SUBTABLE_INIT, sizeof(CmapSubTable)));
+
+ table->data = cmap;
+
+ table->rawdata = nullptr;
+ table->tag = T_cmap;
+
+ return table;
+}
+
+static void DisposeNameRecord(void *ptr)
+{
+ if (ptr != nullptr) {
+ NameRecord *nr = static_cast<NameRecord *>(ptr);
+ if (nr->sptr) free(nr->sptr);
+ free(ptr);
+ }
+}
+
+static NameRecord* NameRecordNewCopy(NameRecord const *nr)
+{
+ NameRecord* p = static_cast<NameRecord*>(smalloc(sizeof(NameRecord)));
+
+ memcpy(p, nr, sizeof(NameRecord));
+
+ if (p->slen) {
+ p->sptr = static_cast<sal_uInt8*>(smalloc(p->slen));
+ memcpy(p->sptr, nr->sptr, p->slen);
+ }
+
+ return p;
+}
+
+TrueTypeTable *TrueTypeTableNew_name(int n, NameRecord const *nr)
+{
+ TrueTypeTable* table = static_cast<TrueTypeTable*>(smalloc(sizeof(TrueTypeTable)));
+ list l = listNewEmpty();
+
+ assert(l != nullptr);
+
+ listSetElementDtor(l, DisposeNameRecord);
+
+ if (n != 0) {
+ int i;
+ for (i = 0; i < n; i++) {
+ listAppend(l, NameRecordNewCopy(nr+i));
+ }
+ }
+
+ table->data = l;
+ table->rawdata = nullptr;
+ table->tag = T_name;
+
+ return table;
+}
+
+TrueTypeTable *TrueTypeTableNew_post(sal_Int32 format,
+ sal_Int32 italicAngle,
+ sal_Int16 underlinePosition,
+ sal_Int16 underlineThickness,
+ sal_uInt32 isFixedPitch)
+{
+ assert(format == 0x00030000); /* Only format 3.0 is supported at this time */
+ TrueTypeTable* table = static_cast<TrueTypeTable*>(smalloc(sizeof(TrueTypeTable)));
+ tdata_post* post = static_cast<tdata_post*>(smalloc(sizeof(tdata_post)));
+
+ post->format = format;
+ post->italicAngle = italicAngle;
+ post->underlinePosition = underlinePosition;
+ post->underlineThickness = underlineThickness;
+ post->isFixedPitch = isFixedPitch;
+ post->ptr = nullptr;
+
+ table->data = post;
+ table->rawdata = nullptr;
+ table->tag = T_post;
+
+ return table;
+}
+
+int GetRawData(TrueTypeTable *_this, sal_uInt8 **ptr, sal_uInt32 *len, sal_uInt32 *tag)
+{
+ /* XXX do a binary search */
+ assert(_this != nullptr);
+ assert(ptr != nullptr);
+ assert(len != nullptr);
+ assert(tag != nullptr);
+
+ *ptr = nullptr; *len = 0; *tag = 0;
+
+ if (_this->rawdata) {
+ free(_this->rawdata);
+ _this->rawdata = nullptr;
+ }
+
+ for(size_t i=0; i < SAL_N_ELEMENTS(vtable2); i++) {
+ if (_this->tag == vtable2[i].tag) {
+ return vtable2[i].f(_this, ptr, len, tag);
+ }
+ }
+
+ assert(!"Unknown TrueType table.");
+ return TTCR_UNKNOWN;
+}
+
+void cmapAdd(TrueTypeTable *table, sal_uInt32 id, sal_uInt32 c, sal_uInt32 g)
+{
+ sal_uInt32 i, found;
+ table_cmap *t;
+ CmapSubTable *s;
+
+ assert(table != nullptr);
+ assert(table->tag == T_cmap);
+ t = static_cast<table_cmap *>(table->data); assert(t != nullptr);
+ s = t->s; assert(s != nullptr);
+
+ found = 0;
+
+ for (i = 0; i < t->n; i++) {
+ if (s[i].id == id) {
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found) {
+ if (t->n == t->m) {
+ CmapSubTable* tmp = static_cast<CmapSubTable*>(scalloc(t->m + CMAP_SUBTABLE_INCR, sizeof(CmapSubTable)));
+ memcpy(tmp, s, sizeof(CmapSubTable) * t->m);
+ t->m += CMAP_SUBTABLE_INCR;
+ free(s);
+ s = tmp;
+ t->s = s;
+ }
+
+ for (i = 0; i < t->n; i++) {
+ if (s[i].id > id) break;
+ }
+
+ if (i < t->n) {
+ memmove(s+i+1, s+i, t->n-i);
+ }
+
+ t->n++;
+
+ s[i].id = id;
+ s[i].n = 0;
+ s[i].m = CMAP_PAIR_INIT;
+ s[i].xc = static_cast<sal_uInt32*>(scalloc(CMAP_PAIR_INIT, sizeof(sal_uInt32)));
+ s[i].xg = static_cast<sal_uInt32*>(scalloc(CMAP_PAIR_INIT, sizeof(sal_uInt32)));
+ }
+
+ if (s[i].n == s[i].m) {
+ sal_uInt32* tmp1 = static_cast<sal_uInt32*>(scalloc(s[i].m + CMAP_PAIR_INCR, sizeof(sal_uInt32)));
+ sal_uInt32* tmp2 = static_cast<sal_uInt32*>(scalloc(s[i].m + CMAP_PAIR_INCR, sizeof(sal_uInt32)));
+ assert(tmp1 != nullptr);
+ assert(tmp2 != nullptr);
+ memcpy(tmp1, s[i].xc, sizeof(sal_uInt32) * s[i].m);
+ memcpy(tmp2, s[i].xg, sizeof(sal_uInt32) * s[i].m);
+ s[i].m += CMAP_PAIR_INCR;
+ free(s[i].xc);
+ free(s[i].xg);
+ s[i].xc = tmp1;
+ s[i].xg = tmp2;
+ }
+
+ s[i].xc[s[i].n] = c;
+ s[i].xg[s[i].n] = g;
+ s[i].n++;
+}
+
+sal_uInt32 glyfAdd(TrueTypeTable *table, GlyphData *glyphdata, AbstractTrueTypeFont *fnt)
+{
+ list l;
+ sal_uInt32 currentID;
+ int ret, n, ncomponents;
+
+ assert(table != nullptr);
+ assert(table->tag == T_glyf);
+
+ if (!glyphdata) return sal_uInt32(~0);
+
+ std::vector< sal_uInt32 > glyphlist;
+
+ ncomponents = GetTTGlyphComponents(fnt, glyphdata->glyphID, glyphlist);
+
+ l = static_cast<list>(table->data);
+ if (listCount(l) > 0) {
+ listToLast(l);
+ ret = n = static_cast<GlyphData *>(listCurrent(l))->newID + 1;
+ } else {
+ ret = n = 0;
+ }
+ glyphdata->newID = n++;
+ listAppend(l, glyphdata);
+
+ if (ncomponents > 1 && glyphlist.size() > 1 )
+ {
+ std::vector< sal_uInt32 >::const_iterator it = glyphlist.begin();
+ ++it;
+ /* glyphData->glyphID is always the first glyph on the list */
+ do
+ {
+ int found = 0;
+ currentID = *it;
+ /* XXX expensive! should be rewritten with sorted arrays! */
+ listToFirst(l);
+ do {
+ if (static_cast<GlyphData *>(listCurrent(l))->glyphID == currentID) {
+ found = 1;
+ break;
+ }
+ } while (listNext(l));
+
+ if (!found) {
+ GlyphData *gd = GetTTRawGlyphData(fnt, currentID);
+ gd->newID = n++;
+ listAppend(l, gd);
+ }
+ } while( ++it != glyphlist.end() );
+ }
+
+ return ret;
+}
+
+sal_uInt32 glyfCount(const TrueTypeTable *table)
+{
+ assert(table != nullptr);
+ assert(table->tag == T_glyf);
+ return listCount(static_cast<list>(table->data));
+}
+
+static TrueTypeTable *FindTable(TrueTypeCreator *tt, sal_uInt32 tag)
+{
+ if (listIsEmpty(tt->tables)) return nullptr;
+
+ listToFirst(tt->tables);
+
+ do {
+ if (static_cast<TrueTypeTable *>(listCurrent(tt->tables))->tag == tag) {
+ return static_cast<TrueTypeTable*>(listCurrent(tt->tables));
+ }
+ } while (listNext(tt->tables));
+
+ return nullptr;
+}
+
+/* This function processes all the tables and synchronizes them before creating
+ * the output TrueType stream.
+ *
+ * *** It adds two TrueType tables to the font: 'loca' and 'hmtx' ***
+ *
+ * It does:
+ *
+ * - Re-numbers glyph IDs and creates 'glyf', 'loca', and 'hmtx' tables.
+ * - Calculates xMin, yMin, xMax, and yMax and stores values in 'head' table.
+ * - Stores indexToLocFormat in 'head'
+ * - updates 'maxp' table
+ * - Calculates advanceWidthMax, minLSB, minRSB, xMaxExtent and numberOfHMetrics
+ * in 'hhea' table
+ *
+ */
+static void ProcessTables(TrueTypeCreator *tt)
+{
+ TrueTypeTable *glyf, *loca, *head, *maxp, *hhea;
+ list glyphlist;
+ sal_uInt32 nGlyphs, locaLen = 0, glyfLen = 0;
+ sal_Int16 xMin = 0, yMin = 0, xMax = 0, yMax = 0;
+ sal_uInt32 i = 0;
+ sal_Int16 indexToLocFormat;
+ sal_uInt8 *hmtxPtr, *hheaPtr;
+ sal_uInt32 hmtxSize;
+ sal_uInt8 *p1, *p2;
+ sal_uInt16 maxPoints = 0, maxContours = 0, maxCompositePoints = 0, maxCompositeContours = 0;
+ int nlsb = 0;
+ sal_uInt32 *gid; /* array of old glyphIDs */
+
+ glyf = FindTable(tt, T_glyf);
+ glyphlist = static_cast<list>(glyf->data);
+ nGlyphs = listCount(glyphlist);
+ if (!nGlyphs)
+ {
+ SAL_WARN("vcl.fonts", "no glyphs found in ProcessTables");
+ return;
+ }
+ gid = static_cast<sal_uInt32*>(scalloc(nGlyphs, sizeof(sal_uInt32)));
+
+ RemoveTable(tt, T_loca);
+ RemoveTable(tt, T_hmtx);
+
+ /* XXX Need to make sure that composite glyphs do not break during glyph renumbering */
+
+ listToFirst(glyphlist);
+ do {
+ GlyphData *gd = static_cast<GlyphData *>(listCurrent(glyphlist));
+ glyfLen += gd->nbytes;
+ /* XXX if (gd->nbytes & 1) glyfLen++; */
+
+ assert(gd->newID == i);
+ gid[i++] = gd->glyphID;
+ /* gd->glyphID = i++; */
+
+ /* printf("IDs: %d %d.\n", gd->glyphID, gd->newID); */
+
+ if (gd->nbytes >= 10) {
+ sal_Int16 z = GetInt16(gd->ptr, 2);
+ if (z < xMin) xMin = z;
+
+ z = GetInt16(gd->ptr, 4);
+ if (z < yMin) yMin = z;
+
+ z = GetInt16(gd->ptr, 6);
+ if (z > xMax) xMax = z;
+
+ z = GetInt16(gd->ptr, 8);
+ if (z > yMax) yMax = z;
+ }
+
+ if (!gd->compflag) { /* non-composite glyph */
+ if (gd->npoints > maxPoints) maxPoints = gd->npoints;
+ if (gd->ncontours > maxContours) maxContours = gd->ncontours;
+ } else { /* composite glyph */
+ if (gd->npoints > maxCompositePoints) maxCompositePoints = gd->npoints;
+ if (gd->ncontours > maxCompositeContours) maxCompositeContours = gd->ncontours;
+ }
+
+ } while (listNext(glyphlist));
+
+ indexToLocFormat = (glyfLen / 2 > 0xFFFF) ? 1 : 0;
+ locaLen = indexToLocFormat ? (nGlyphs + 1) << 2 : (nGlyphs + 1) << 1;
+
+ sal_uInt8* glyfPtr = ttmalloc(glyfLen);
+ sal_uInt8* locaPtr = ttmalloc(locaLen);
+ TTSimpleGlyphMetrics* met = static_cast<TTSimpleGlyphMetrics*>(scalloc(nGlyphs, sizeof(TTSimpleGlyphMetrics)));
+ i = 0;
+
+ listToFirst(glyphlist);
+ p1 = glyfPtr;
+ p2 = locaPtr;
+ do {
+ GlyphData *gd = static_cast<GlyphData *>(listCurrent(glyphlist));
+
+ if (gd->compflag && gd->nbytes > 10) { /* re-number all components */
+ sal_uInt16 flags, index;
+ sal_uInt8 *ptr = gd->ptr + 10;
+ size_t nRemaining = gd->nbytes - 10;
+ do {
+ if (nRemaining < 4)
+ {
+ SAL_WARN("vcl.fonts", "truncated font");
+ break;
+ }
+ flags = GetUInt16(ptr, 0);
+ index = GetUInt16(ptr, 2);
+
+ /* XXX use the sorted array of old to new glyphID mapping and do a binary search */
+ sal_uInt32 j;
+ for (j = 0; j < nGlyphs; j++) {
+ if (gid[j] == index) {
+ break;
+ }
+ }
+ /* printf("X: %d -> %d.\n", index, j); */
+
+ PutUInt16(static_cast<sal_uInt16>(j), ptr, 2);
+
+ ptr += 4;
+ nRemaining -= 4;
+
+ sal_uInt32 nAdvance = 0;
+ if (flags & ARG_1_AND_2_ARE_WORDS) {
+ nAdvance += 4;
+ } else {
+ nAdvance += 2;
+ }
+
+ if (flags & WE_HAVE_A_SCALE) {
+ nAdvance += 2;
+ } else if (flags & WE_HAVE_AN_X_AND_Y_SCALE) {
+ nAdvance += 4;
+ } else if (flags & WE_HAVE_A_TWO_BY_TWO) {
+ nAdvance += 8;
+ }
+
+ if (nRemaining < nAdvance)
+ {
+ SAL_WARN("vcl.fonts", "truncated font");
+ break;
+ }
+
+ ptr += nAdvance;
+ nRemaining -= nAdvance;
+
+ } while (flags & MORE_COMPONENTS);
+ }
+
+ if (gd->nbytes != 0) {
+ memcpy(p1, gd->ptr, gd->nbytes);
+ }
+ if (indexToLocFormat == 1) {
+ PutUInt32(p1 - glyfPtr, p2, 0);
+ p2 += 4;
+ } else {
+ PutUInt16(static_cast<sal_uInt16>((p1 - glyfPtr) >> 1), p2, 0);
+ p2 += 2;
+ }
+ p1 += gd->nbytes;
+
+ /* fill the array of metrics */
+ met[i].adv = gd->aw;
+ met[i].sb = gd->lsb;
+ i++;
+ } while (listNext(glyphlist));
+
+ free(gid);
+
+ if (indexToLocFormat == 1) {
+ PutUInt32(p1 - glyfPtr, p2, 0);
+ } else {
+ PutUInt16(static_cast<sal_uInt16>((p1 - glyfPtr) >> 1), p2, 0);
+ }
+
+ glyf->rawdata = glyfPtr;
+
+ loca = TrueTypeTableNew_loca(); assert(loca != nullptr);
+ static_cast<tdata_loca *>(loca->data)->ptr = locaPtr;
+ static_cast<tdata_loca *>(loca->data)->nbytes = locaLen;
+
+ AddTable(tt, loca);
+
+ head = FindTable(tt, T_head);
+ sal_uInt8* const pHeadData = static_cast<sal_uInt8*>(head->data);
+ PutInt16(xMin, pHeadData, HEAD_xMin_offset);
+ PutInt16(yMin, pHeadData, HEAD_yMin_offset);
+ PutInt16(xMax, pHeadData, HEAD_xMax_offset);
+ PutInt16(yMax, pHeadData, HEAD_yMax_offset);
+ PutInt16(indexToLocFormat, pHeadData, HEAD_indexToLocFormat_offset);
+
+ maxp = FindTable(tt, T_maxp);
+
+ sal_uInt8* const pMaxpData = static_cast<sal_uInt8*>(maxp->data);
+ PutUInt16(static_cast<sal_uInt16>(nGlyphs), pMaxpData, MAXP_numGlyphs_offset);
+ PutUInt16(maxPoints, pMaxpData, MAXP_maxPoints_offset);
+ PutUInt16(maxContours, pMaxpData, MAXP_maxContours_offset);
+ PutUInt16(maxCompositePoints, pMaxpData, MAXP_maxCompositePoints_offset);
+ PutUInt16(maxCompositeContours, pMaxpData, MAXP_maxCompositeContours_offset);
+
+ /*
+ * Generate an htmx table and update hhea table
+ */
+ hhea = FindTable(tt, T_hhea); assert(hhea != nullptr);
+ hheaPtr = static_cast<sal_uInt8 *>(hhea->data);
+ if (nGlyphs > 2) {
+ for (i = nGlyphs - 1; i > 0; i--) {
+ if (met[i].adv != met[i-1].adv) break;
+ }
+ nlsb = nGlyphs - 1 - i;
+ }
+ hmtxSize = (nGlyphs - nlsb) * 4 + nlsb * 2;
+ hmtxPtr = ttmalloc(hmtxSize);
+ p1 = hmtxPtr;
+
+ for (i = 0; i < nGlyphs; i++) {
+ if (i < nGlyphs - nlsb) {
+ PutUInt16(met[i].adv, p1, 0);
+ PutUInt16(met[i].sb, p1, 2);
+ p1 += 4;
+ } else {
+ PutUInt16(met[i].sb, p1, 0);
+ p1 += 2;
+ }
+ }
+
+ AddTable(tt, TrueTypeTableNew(T_hmtx, hmtxSize, hmtxPtr));
+ PutUInt16(static_cast<sal_uInt16>(nGlyphs - nlsb), hheaPtr, 34);
+ free(hmtxPtr);
+ free(met);
+}
+
+} // namespace vcl
+
+extern "C"
+{
+ /**
+ * TrueTypeCreator destructor. It calls destructors for all TrueTypeTables added to it.
+ */
+ void TrueTypeCreatorDispose(vcl::TrueTypeCreator *_this)
+ {
+ listDispose(_this->tables);
+ free(_this);
+ }
+
+ /**
+ * Destructor for the TrueTypeTable object.
+ */
+ void TrueTypeTableDispose(void * arg)
+ {
+ vcl::TrueTypeTable *_this = static_cast<vcl::TrueTypeTable *>(arg);
+ /* XXX do a binary search */
+ assert(_this != nullptr);
+
+ if (_this->rawdata) free(_this->rawdata);
+
+ for(size_t i=0; i < SAL_N_ELEMENTS(vcl::vtable1); i++) {
+ if (_this->tag == vcl::vtable1[i].tag) {
+ vcl::vtable1[i].f(_this);
+ return;
+ }
+ }
+ assert(!"Unknown TrueType table.");
+ }
+}
+
+#ifdef TEST_TTCR
+static sal_uInt32 mkTag(sal_uInt8 a, sal_uInt8 b, sal_uInt8 c, sal_uInt8 d) {
+ return (a << 24) | (b << 16) | (c << 8) | d;
+}
+
+int main()
+{
+ TrueTypeCreator *ttcr;
+ sal_uInt8 *t1, *t2, *t3, *t4, *t5, *t6;
+
+ TrueTypeCreatorNewEmpty(mkTag('t','r','u','e'), &ttcr);
+
+ t1 = malloc(1000); memset(t1, 'a', 1000);
+ t2 = malloc(2000); memset(t2, 'b', 2000);
+ t3 = malloc(3000); memset(t3, 'c', 3000);
+ t4 = malloc(4000); memset(t4, 'd', 4000);
+ t5 = malloc(5000); memset(t5, 'e', 5000);
+ t6 = malloc(6000); memset(t6, 'f', 6000);
+
+ AddTable(ttcr, TrueTypeTableNew(T_maxp, 1000, t1));
+ AddTable(ttcr, TrueTypeTableNew(T_OS2, 2000, t2));
+ AddTable(ttcr, TrueTypeTableNew(T_cmap, 3000, t3));
+ AddTable(ttcr, TrueTypeTableNew(T_loca, 4000, t4));
+ AddTable(ttcr, TrueTypeTableNew(T_hhea, 5000, t5));
+ AddTable(ttcr, TrueTypeTableNew(T_glyf, 6000, t6));
+
+ free(t1);
+ free(t2);
+ free(t3);
+ free(t4);
+ free(t5);
+ free(t6);
+
+ StreamToFile(ttcr, "ttcrout.ttf");
+
+ TrueTypeCreatorDispose(ttcr);
+ return 0;
+}
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-01 09:28:35 +0000