public static void Load(FontParser parser, int offset, FontFace font, out int hmMetricCount)
{
// Seek there:
parser.Position = offset;
// Version:
parser.ReadVersion();
// Ascender:
float ascender = (float)parser.ReadInt16() / font.UnitsPerEmF;
// Descender:
float descender = (float)parser.ReadInt16() / font.UnitsPerEmF;
// Line gap:
float lineGap = (float)parser.ReadInt16() / font.UnitsPerEmF;
if (lineGap < 0f)
{
// Negative line gaps are treated as meaning 0.
lineGap = 0f;
}
parser.HheaAscender = ascender;
parser.HheaDescender = descender;
parser.HheaLineGap = lineGap;
// Advance width max:
font.MaxAdvanceWidth = (float)parser.ReadUInt16() / font.UnitsPerEmF;
// Min left side bearing:
font.MinLeftSideBearing = (float)parser.ReadInt16() / font.UnitsPerEmF;
// Min right side bearing:
font.MinRightSideBearing = (float)parser.ReadInt16() / font.UnitsPerEmF;
// Max x extent:
font.MaxXExtent = (float)parser.ReadInt16() / font.UnitsPerEmF;
// Caret slope rise:
float caretRise = (float)parser.ReadInt16();
// Caret slope run:
float caretRun = (float)parser.ReadInt16();
font.CaretAngle = (float)Math.Atan2(caretRise, caretRun);
// Caret offset:
font.CaretOffset = (float)parser.ReadInt16() / font.UnitsPerEmF;
// Skip:
parser.Position += 8;
// Metric format:
parser.ReadInt16();
// Metric count:
hmMetricCount = parser.ReadUInt16();
}
public static void Load(FontParser parser,int offset,FontFace font,out int glyphCount){
// Seek:
parser.Position=offset;
// Table version:
float version=parser.ReadVersion();
// Glyph count:
glyphCount=parser.ReadUInt16();
if (version == 1f){
// Max points:
parser.ReadUInt16();
// Max contours:
parser.ReadUInt16();
// Max composite points:
parser.ReadUInt16();
// Max composite contours:
parser.ReadUInt16();
// Max zones:
parser.ReadUInt16();
// Max twilight points:
parser.ReadUInt16();
// Max storage:
parser.ReadUInt16();
// Max function defs:
parser.ReadUInt16();
// Max instruction defs:
parser.ReadUInt16();
// Max stack elements:
parser.ReadUInt16();
// Max instruction size:
parser.ReadUInt16();
// Max component elements:
parser.ReadUInt16();
// Max component depth:
parser.ReadUInt16();
}
}
public static void Load(FontParser parser, int offset, FontFace font, out int glyphCount)
{
// Seek:
parser.Position = offset;
// Table version:
float version = parser.ReadVersion();
// Glyph count:
glyphCount = parser.ReadUInt16();
if (version == 1f)
{
// Max points:
parser.ReadUInt16();
// Max contours:
parser.ReadUInt16();
// Max composite points:
parser.ReadUInt16();
// Max composite contours:
parser.ReadUInt16();
// Max zones:
parser.ReadUInt16();
// Max twilight points:
parser.ReadUInt16();
// Max storage:
parser.ReadUInt16();
// Max function defs:
parser.ReadUInt16();
// Max instruction defs:
parser.ReadUInt16();
// Max stack elements:
parser.ReadUInt16();
// Max instruction size:
parser.ReadUInt16();
// Max component elements:
parser.ReadUInt16();
// Max component depth:
parser.ReadUInt16();
}
}
public static void Load(FontParser parser,int offset,FontFace font,out int numberOfGlyphs){
// Seek:
parser.Position=offset;
// version
float version=parser.ReadVersion();
// Italic angle. For some reason it's inverted in the spec - negative means a slope to the right.
int frac;
int dec=parser.ReadFixed(out frac);
if(frac!=0){
// Figure it out:
float angle=(float)dec/(float)frac;
// Apply it (un-inverted):
font.SetItalicAngle(-angle);
}
// underlinePosition
parser.ReadInt16();
// underlineThickness
parser.ReadInt16();
// isFixedPitch
parser.ReadUInt32();
// minMemType42
parser.ReadUInt32();
// maxMemType42
parser.ReadUInt32();
// minMemType1
parser.ReadUInt32();
// maxMemType1
parser.ReadUInt32();
if(version==2f){
numberOfGlyphs = parser.ReadUInt16();
/*
string[] glyphNames=new string[numberOfGlyphs];
for (int i = 0; i < numberOfGlyphs; i++) {
// Read the index:
int index = parser.ReadUInt16();
if(index >= StandardNames.Length){
// Read the name:
glyphNames[i]=parser.ReadString(parser.ReadByte());
}else{
// Grab the std name:
glyphNames[i]=StandardNames[index];
}
}
*/
}else if(version==2.5f){
numberOfGlyphs = parser.ReadUInt16();
/*
byte[] offsets = new byte[numberOfGlyphs];
for (int i = 0; i < post.numberOfGlyphs; i++){
offsets[i] = parser.ReadByte();
}
*/
}else{
numberOfGlyphs=-1;
}
}
public static bool Load(FontParser parser,int offset,FontFace font,out int locFormatIndex){
// Seek there now:
parser.Position=offset;
// Version:
parser.ReadVersion();
// Revision:
parser.ReadRevision();
// Checksum adjustment:
parser.ReadUInt32();
// Magic number:
if(parser.ReadUInt32()!=0x5F0F3CF5){
locFormatIndex=0;
return false;
}
// Flags:
parser.ReadUInt16();
// Units per em:
font.UnitsPerEm = parser.ReadUInt16();
font.UnitsPerEmF = (float)font.UnitsPerEm;
// Skip created and modified:
parser.ReadTime();
parser.ReadTime();
// X min:
parser.ReadInt16();
// Y min:
parser.ReadInt16();
// X max:
parser.ReadInt16();
// Y max:
parser.ReadInt16();
// Mac style:
parser.ReadUInt16();
// Lowest Rec PPEM:
parser.ReadUInt16();
// Font direction hint:
parser.ReadInt16();
// Index for the loc format:
locFormatIndex = parser.ReadInt16(); // 50
// Glyph data format:
parser.ReadInt16();
return true;
}
public static void Load(FontParser parser, int offset, FontFace font)
{
// Seek there:
parser.Position = offset;
// Version:
parser.ReadVersion();
// Script list (directed by UI Language setting):
int scriptList = parser.ReadUInt16();
// Feature list:
int featList = parser.ReadUInt16();
// Lookup list:
int lookList = parser.ReadUInt16();
// Goto script list:
int objectOffset = scriptList + offset;
parser.Position = objectOffset;
/*
* // How many language scripts?
* int scriptCount=parser.ReadUInt16();
*
* for(int i=0;i<scriptCount;i++){
*
* // Read the script code:
* string scrName=parser.ReadString(4);
*
* // And it's offset:
* int scriptOffset=parser.ReadUInt16()+objectOffset;
*
* int retPosition=parser.Position;
*
* // Seek and load it right away:
* parser.Position=scriptOffset;
*
* // What's the default lang?
* int defaultLangOffset=parser.ReadUInt16();
*
* // How many languages?
* int langCount=parser.ReadUInt16();
*
* for(int l=0;l<langCount;l++){
*
* // Read the lang code:
* string langName=parser.ReadString(4);
*
* // And it's offset - points to list of features:
* int langOffset=parser.ReadUInt16()+objectOffset;
*
* }
*
* parser.Position=retPosition;
*
* }
*/
// Create lookup set:
LookupList lookups = new LookupList(parser, lookList + offset);
// Goto feature list:
objectOffset = featList + offset;
parser.Position = objectOffset;
// How many features?
int featureCount = parser.ReadUInt16();
for (int i = 0; i < featureCount; i++)
{
// Read the feature code:
string featureName = parser.ReadString(4);
// Table offset:
int featTable = parser.ReadUInt16();
// Create the feature ref:
FontFeature feature = new FontFeature();
feature.Name = featureName;
feature.Offset = objectOffset + featTable;
feature.Parser = parser;
feature.Face = font;
feature.List = lookups;
// Add to font:
font.Features[featureName] = feature;
}
}
public static void Load(FontParser parser,int offset,FontFace font,out int hmMetricCount){
// Seek there:
parser.Position=offset;
// Version:
parser.ReadVersion();
// Ascender:
float ascender=(float)parser.ReadInt16()/font.UnitsPerEmF;
// Descender:
float descender=(float)parser.ReadInt16()/font.UnitsPerEmF;
// Line gap:
float lineGap=(float)parser.ReadInt16()/font.UnitsPerEmF;
if(!Fonts.UseOS2Metrics || !parser.ReadOS2){
if(lineGap<0f){
lineGap=-lineGap;
}
float halfGap=lineGap/2f;
font.Ascender=ascender + halfGap;
font.Descender=halfGap-descender;
font.LineGap=font.Ascender + font.Descender;
}
// Advance width max:
font.MaxAdvanceWidth=(float)parser.ReadUInt16()/font.UnitsPerEmF;
// Min left side bearing:
font.MinLeftSideBearing=(float)parser.ReadInt16()/font.UnitsPerEmF;
// Min right side bearing:
font.MinRightSideBearing=(float)parser.ReadInt16()/font.UnitsPerEmF;
// Max x extent:
font.MaxXExtent=(float)parser.ReadInt16()/font.UnitsPerEmF;
// Caret slope rise:
float caretRise=(float)parser.ReadInt16();
// Caret slope run:
float caretRun=(float)parser.ReadInt16();
font.CaretAngle=(float)Math.Atan2(caretRise,caretRun);
// Caret offset:
font.CaretOffset=(float)parser.ReadInt16()/font.UnitsPerEmF;
// Skip:
parser.Position += 8;
// Metric format:
parser.ReadInt16();
// Metric count:
hmMetricCount = parser.ReadUInt16();
}
public static void Load(FontParser parser, int offset, FontFace font)
{
// Seek there:
parser.Position = offset;
// Version:
parser.ReadVersion();
// Script list (directed by UI Language setting):
int scriptList = parser.ReadUInt16();
// Feature list:
int featList = parser.ReadUInt16();
// Lookup list:
int lookList = parser.ReadUInt16();
// Goto script list:
int objectOffset = scriptList + offset;
parser.Position = objectOffset;
/*
* // How many language scripts?
* int scriptCount=parser.ReadUInt16();
*
* for(int i=0;i<scriptCount;i++){
*
* // Read the script code:
* string scrName=parser.ReadString(4);
*
* // And it's offset:
* int scriptOffset=parser.ReadUInt16()+objectOffset;
*
* int retPosition=parser.Position;
*
* // Seek and load it right away:
* parser.Position=scriptOffset;
*
* // What's the default lang?
* int defaultLangOffset=parser.ReadUInt16();
*
* // How many languages?
* int langCount=parser.ReadUInt16();
*
* for(int l=0;l<langCount;l++){
*
* // Read the lang code:
* string langName=parser.ReadString(4);
*
* // And it's offset - points to list of features:
* int langOffset=parser.ReadUInt16()+objectOffset;
*
* }
*
* parser.Position=retPosition;
*
* }
*/
// Goto lookup list:
objectOffset = lookList + offset;
// Seek there:
parser.Position = objectOffset;
// Load each one:
int lookCount = parser.ReadUInt16();
// Create:
LigatureLookupTable[] lookupTables = new LigatureLookupTable[lookCount];
for (int i = 0; i < lookCount; i++)
{
// Create the table:
LigatureLookupTable table = new LigatureLookupTable();
// Load it:
int tableOffset = parser.ReadUInt16();
// Cache the position:
int seekPos = parser.Position;
// Head over to the table:
parser.Position = objectOffset + tableOffset;
// Load it now:
table.Load(parser);
// Add to set:
lookupTables[i] = table;
// Restore position:
parser.Position = seekPos;
}
// Goto feature list:
objectOffset = featList + offset;
parser.Position = objectOffset;
// How many features? For now, "liga" is the main feature we're after here.
int featureCount = parser.ReadUInt16();
for (int i = 0; i < featureCount; i++)
{
// Read the feature code:
string feature = parser.ReadString(4);
// Table offset:
int featTable = parser.ReadUInt16();
switch (feature)
{
case "locl":
case "liga":
AddToFont(feature, parser, featTable + objectOffset, font, lookupTables);
break;
}
}
}
public static void Load(FontParser parser, int offset, FontFace font, out int hmMetricCount)
{
// Seek there:
parser.Position = offset;
// Version:
parser.ReadVersion();
// Ascender:
float ascender = (float)parser.ReadInt16() / font.UnitsPerEmF;
// Descender:
float descender = (float)parser.ReadInt16() / font.UnitsPerEmF;
// Line gap:
float lineGap = (float)parser.ReadInt16() / font.UnitsPerEmF;
if (!Fonts.UseOS2Metrics || !parser.ReadOS2)
{
if (lineGap < 0f)
{
lineGap = -lineGap;
}
float halfGap = lineGap / 2f;
font.Ascender = ascender + halfGap;
font.Descender = halfGap - descender;
font.LineGap = font.Ascender + font.Descender;
}
// Advance width max:
font.MaxAdvanceWidth = (float)parser.ReadUInt16() / font.UnitsPerEmF;
// Min left side bearing:
font.MinLeftSideBearing = (float)parser.ReadInt16() / font.UnitsPerEmF;
// Min right side bearing:
font.MinRightSideBearing = (float)parser.ReadInt16() / font.UnitsPerEmF;
// Max x extent:
font.MaxXExtent = (float)parser.ReadInt16() / font.UnitsPerEmF;
// Caret slope rise:
float caretRise = (float)parser.ReadInt16();
// Caret slope run:
float caretRun = (float)parser.ReadInt16();
font.CaretAngle = (float)Math.Atan2(caretRise, caretRun);
// Caret offset:
font.CaretOffset = (float)parser.ReadInt16() / font.UnitsPerEmF;
// Skip:
parser.Position += 8;
// Metric format:
parser.ReadInt16();
// Metric count:
hmMetricCount = parser.ReadUInt16();
}
public static bool Load(FontParser parser, int offset, FontFace font, out int locFormatIndex)
{
// Seek there now:
parser.Position = offset;
// Version:
parser.ReadVersion();
// Revision:
parser.ReadRevision();
// Checksum adjustment:
parser.ReadUInt32();
// Magic number:
if (parser.ReadUInt32() != 0x5F0F3CF5)
{
locFormatIndex = 0;
return(false);
}
// Flags:
parser.ReadUInt16();
// Units per em:
font.UnitsPerEm = parser.ReadUInt16();
font.UnitsPerEmF = (float)font.UnitsPerEm;
// Skip created and modified:
parser.ReadTime();
parser.ReadTime();
// X min:
parser.ReadInt16();
// Y min:
parser.ReadInt16();
// X max:
parser.ReadInt16();
// Y max:
parser.ReadInt16();
// Mac style:
parser.ReadUInt16();
// Lowest Rec PPEM:
parser.ReadUInt16();
// Font direction hint:
parser.ReadInt16();
// Index for the loc format:
locFormatIndex = parser.ReadInt16(); // 50
// Glyph data format:
parser.ReadInt16();
return(true);
}
public static void Load(FontParser parser, int offset, FontFace font, out int numberOfGlyphs)
{
// Seek:
parser.Position = offset;
// version
float version = parser.ReadVersion();
// Italic angle. For some reason it's inverted in the spec - negative means a slope to the right.
int frac;
int dec = parser.ReadFixed(out frac);
if (frac != 0)
{
// Figure it out:
float angle = (float)dec / (float)frac;
// Apply it (un-inverted):
font.SetItalicAngle(-angle);
}
// underlinePosition
parser.ReadInt16();
// underlineThickness
parser.ReadInt16();
// isFixedPitch
parser.ReadUInt32();
// minMemType42
parser.ReadUInt32();
// maxMemType42
parser.ReadUInt32();
// minMemType1
parser.ReadUInt32();
// maxMemType1
parser.ReadUInt32();
if (version == 2f)
{
numberOfGlyphs = parser.ReadUInt16();
/*
* string[] glyphNames=new string[numberOfGlyphs];
*
* for (int i = 0; i < numberOfGlyphs; i++) {
*
* // Read the index:
* int index = parser.ReadUInt16();
*
* if(index >= StandardNames.Length){
*
* // Read the name:
* glyphNames[i]=parser.ReadString(parser.ReadByte());
*
* }else{
*
* // Grab the std name:
* glyphNames[i]=StandardNames[index];
*
* }
*
* }
*/
}
else if (version == 2.5f)
{
numberOfGlyphs = parser.ReadUInt16();
/*
* byte[] offsets = new byte[numberOfGlyphs];
*
* for (int i = 0; i < post.numberOfGlyphs; i++){
*
* offsets[i] = parser.ReadByte();
*
* }
*/
}
else
{
numberOfGlyphs = -1;
}
}
public static void Load(FontParser parser,int offset,FontFace font){
// Seek there:
parser.Position=offset;
// Version:
parser.ReadVersion();
// Script list (directed by UI Language setting):
int scriptList=parser.ReadUInt16();
// Feature list:
int featList=parser.ReadUInt16();
// Lookup list:
int lookList=parser.ReadUInt16();
// Goto script list:
int objectOffset=scriptList+offset;
parser.Position=objectOffset;
/*
// How many language scripts?
int scriptCount=parser.ReadUInt16();
for(int i=0;i<scriptCount;i++){
// Read the script code:
string scrName=parser.ReadString(4);
// And it's offset:
int scriptOffset=parser.ReadUInt16()+objectOffset;
int retPosition=parser.Position;
// Seek and load it right away:
parser.Position=scriptOffset;
// What's the default lang?
int defaultLangOffset=parser.ReadUInt16();
// How many languages?
int langCount=parser.ReadUInt16();
for(int l=0;l<langCount;l++){
// Read the lang code:
string langName=parser.ReadString(4);
// And it's offset - points to list of features:
int langOffset=parser.ReadUInt16()+objectOffset;
}
parser.Position=retPosition;
}
*/
// Goto lookup list:
objectOffset=lookList+offset;
// Seek there:
parser.Position=objectOffset;
// Load each one:
int lookCount=parser.ReadUInt16();
// Create:
LigatureLookupTable[] lookupTables=new LigatureLookupTable[lookCount];
for(int i=0;i<lookCount;i++){
// Create the table:
LigatureLookupTable table=new LigatureLookupTable();
// Load it:
int tableOffset=parser.ReadUInt16();
// Cache the position:
int seekPos=parser.Position;
// Head over to the table:
parser.Position=objectOffset+tableOffset;
// Load it now:
table.Load(parser);
// Add to set:
lookupTables[i]=table;
// Restore position:
parser.Position=seekPos;
}
// Goto feature list:
objectOffset=featList+offset;
parser.Position=objectOffset;
// How many features? For now, "liga" is the main feature we're after here.
int featureCount=parser.ReadUInt16();
for(int i=0;i<featureCount;i++){
// Read the feature code:
string feature=parser.ReadString(4);
// Table offset:
int featTable=parser.ReadUInt16();
switch(feature){
case "locl":
case "liga":
AddToFont(feature,parser,featTable+objectOffset,font,lookupTables);
break;
}
}
}
