private void WriteFont(SWFFont font, int fid)
{
WriteBuffer fontTag = this.OpenTag(Tag.DefineFont3, font.Name + "; id=" + fid);
char[] codes = font.CodePoints;
/* Tag.DefineFont3 */
{
fontTag.WriteUI16((uint)fid);
fontTag.WriteBit(font.HasLayout);
fontTag.WriteBit(false); /* ISSUE 50: ShiftJIS support */
fontTag.WriteBit(font.IsSmall);
fontTag.WriteBit(false); /* ISSUE 51: ANSI support, though I think this might never be false. */
fontTag.WriteBit(true); /* ISSUE 52: We always write wide offsets. This is because we're too lazy to measure our table. */
fontTag.WriteBit(true); /* Spec says must be true. */
fontTag.WriteBit(font.IsItalic);
fontTag.WriteBit(font.IsBold);
fontTag.WriteUI8((uint)font.LanguageCode);
fontTag.WriteString(font.Name, true);
fontTag.WriteUI16((uint)font.GlyphCount);
byte[][] shapeData = new byte[font.GlyphCount][];
int totalShapeBytes = 0;
for (int i = 0; i < font.GlyphCount; i++)
{
Tag format;
shapeData[i] = ShapeWriter.ShapeToBytes(font.GetGlyphShape(codes[i]), out format);
if (format != Tag.DefineFont3)
{
throw new SWFModellerException(SWFModellerError.Internal, "Can't write non-font shapes as glyphs");
}
totalShapeBytes += shapeData[i].Length;
}
int startOffset = font.GlyphCount * 4 + 4; /* 4 bytes per offset (wide offsets) + 4 for the code table offset */
int nextOffset = startOffset;
foreach (byte[] shapeBytes in shapeData)
{
fontTag.WriteUI32((uint)nextOffset);
nextOffset += shapeBytes.Length;
}
fontTag.WriteUI32((uint)(startOffset + totalShapeBytes));
foreach (byte[] shapeBytes in shapeData)
{
fontTag.WriteBytes(shapeBytes);
}
foreach (char code in codes)
{
fontTag.WriteUI16((uint)code);
}
if (font.HasLayout)
{
fontTag.WriteSI16(font.Ascent.Value);
fontTag.WriteSI16(font.Descent.Value);
fontTag.WriteSI16(font.Leading.Value);
Rect[] bounds = new Rect[font.GlyphCount];
int boundsPos = 0;
foreach (char c in codes)
{
GlyphLayout gl = font.GetLayout(c);
fontTag.WriteSI16(gl.Advance);
bounds[boundsPos++] = gl.Bounds;
}
foreach (Rect bound in bounds)
{
fontTag.WriteRect(bound);
fontTag.Align8();
}
fontTag.WriteUI16((uint)font.KerningTable.Length);
foreach (KerningPair kern in font.KerningTable)
{
fontTag.WriteUI16(kern.LeftChar);
fontTag.WriteUI16(kern.RightChar);
fontTag.WriteSI16(kern.Adjustment);
}
}
}
this.CloseTag();
if (font.HasPixelAlignment)
{
WriteBuffer zonesTag = this.OpenTag(Tag.DefineFontAlignZones, font.Name + "; id=" + fid);
zonesTag.WriteUI16((uint)fid);
if (font.ThicknessHint == null)
{
throw new SWFModellerException(SWFModellerError.Internal, "Can't have pixel aligmnent without a font thickness hint.");
}
zonesTag.WriteUBits((uint)font.ThicknessHint, 2);
zonesTag.WriteUBits(0, 6); /* Reserved */
foreach (char c in codes)
{
PixelAlignment pa = font.GetPixelAligment(c);
if (pa.ZoneInfo.Length != 2)
{
throw new SWFModellerException(SWFModellerError.Internal, "Pixel aligment should always have 2 zones.");
}
zonesTag.WriteUI8((uint)pa.ZoneInfo.Length);
foreach (PixelAlignment.ZoneData zi in pa.ZoneInfo)
{
/* These int values are just unparsed 16-bit floats. */
zonesTag.WriteUI16((uint)zi.AlignmentCoord);
zonesTag.WriteUI16((uint)zi.Range);
}
zonesTag.WriteUBits(0, 6); /* Reserved */
zonesTag.WriteBit(pa.HasY);
zonesTag.WriteBit(pa.HasX);
}
this.CloseTag();
}
if (font.HasExtraNameInfo)
{
WriteBuffer nameTag = this.OpenTag(Tag.DefineFontName, font.FullName + "; id=" + fid);
nameTag.WriteUI16((uint)fid);
nameTag.WriteString(font.FullName);
nameTag.WriteString(font.Copyright);
this.CloseTag();
}
}
/// <summary>
/// Writes a rectangle to the stream
/// </summary>
/// <remarks>WARNING: Bear in mind that the writer will probably not be
/// byte-aligned after calling this.</remarks>
/// <param name="r">The rectangle to write.</param>
public void WriteRect(Rect r)
{
int xmin = (int)(r.XMin * SWFValues.TwipsFactor);
int xmax = (int)(r.XMax * SWFValues.TwipsFactor);
int ymin = (int)(r.YMin * SWFValues.TwipsFactor);
int ymax = (int)(r.YMax * SWFValues.TwipsFactor);
int nbits = Math.Max(RequiredBits(xmin),
Math.Max(RequiredBits(xmax),
Math.Max(RequiredBits(ymin), RequiredBits(ymax))));
this.WriteUBits((uint)nbits, 5);
this.WriteSBits(xmin, nbits);
this.WriteSBits(xmax, nbits);
this.WriteSBits(ymin, nbits);
this.WriteSBits(ymax, nbits);
}
private void ReadHeader(SWFContext ctx)
{
int sig = this.sdtr.ReadUI24();
if (sig != SIG_COMPRESSED && sig != SIG_UNCOMPRESSED)
{
throw new SWFModellerException(
SWFModellerError.SWFParsing,
@"Not a SWF file", ctx);
}
bool compressed = sig == SIG_COMPRESSED;
this.version = this.sdtr.ReadUI8();
if (this.version < 9)
{
throw new SWFModellerException(
SWFModellerError.SWFParsing,
@"Only SWF 9+ is supported (Found " + this.version +")", ctx);
}
#if DEBUG
this.Log("SWF version = " + this.version);
#endif
this.fileLen = this.sdtr.ReadUI32();
if (compressed)
{
this.sdtr.SwitchToDeflateMode(this.fileLen);
}
this.frameSize = this.sdtr.ReadRect();
this.fps = this.sdtr.ReadFIXED8();
this.frameCount = this.sdtr.ReadUI16();
}
