/*
========================
idSWFShapeParser::ParseMorph
========================
*/
void idSWFShapeParser::ParseMorph( idSWFBitStream& bitstream, idSWFShape& shape )
{
extendedCount = true;
lineStyle2 = false;
rgba = true;
morph = true;
bitstream.ReadRect( shape.startBounds );
bitstream.ReadRect( shape.endBounds );
uint32 offset = bitstream.ReadU32();
// offset is the byte offset from the current read position to the 'endShape' record
// we read the entire block into 'bitstream1' which moves the read pointer of 'bitstream'
// to the start of the 'endShape' record
idSWFBitStream bitstream1;
bitstream1.Load( ( byte* )bitstream.ReadData( offset ), offset, false );
ReadFillStyle( bitstream1 );
ParseShapes( bitstream1, &bitstream, true );
TriangulateSoup( shape );
}
/*
========================
idSWF::DefineTextX
========================
*/
void idSWF::DefineTextX( idSWFBitStream & bitstream, bool rgba ) {
uint16 characterID = bitstream.ReadU16();
idSWFDictionaryEntry * entry = AddDictionaryEntry( characterID, SWF_DICT_TEXT );
if ( entry == NULL ) {
return;
}
idSWFText * text = entry->text;
bitstream.ReadRect( text->bounds );
bitstream.ReadMatrix( text->matrix );
uint8 glyphBits = bitstream.ReadU8();
uint8 advanceBits = bitstream.ReadU8();
while ( true ) {
uint8 flags = bitstream.ReadU8();
if ( flags == 0 ) {
break;
}
idSWFTextRecord & textRecord = text->textRecords.Alloc();
if ( flags & BIT( 3 ) ) {
textRecord.fontID = bitstream.ReadU16();
}
if ( flags & BIT( 2 ) ) {
if ( rgba ) {
bitstream.ReadColorRGBA( textRecord.color );
} else {
bitstream.ReadColorRGB( textRecord.color );
}
}
if ( flags & BIT( 0 ) ) {
textRecord.xOffset = bitstream.ReadS16();
}
if ( flags & BIT( 1 ) ) {
textRecord.yOffset = bitstream.ReadS16();
}
if ( flags & BIT( 3 ) ) {
textRecord.textHeight = bitstream.ReadU16();
}
textRecord.firstGlyph = text->glyphs.Num();
textRecord.numGlyphs = bitstream.ReadU8();
for ( int i = 0; i < textRecord.numGlyphs; i++ ) {
swfGlyphEntry_t & glyph = text->glyphs.Alloc();
glyph.index = bitstream.ReadU( glyphBits );
glyph.advance = bitstream.ReadS( advanceBits );
}
};
}
/*
========================
idSWF::DefineFont2
========================
*/
void idSWF::DefineFont2( idSWFBitStream & bitstream ) {
uint16 characterID = bitstream.ReadU16();
idSWFDictionaryEntry * entry = AddDictionaryEntry( characterID, SWF_DICT_FONT );
if ( entry == NULL ) {
return;
}
uint8 flags = bitstream.ReadU8();
uint8 language = bitstream.ReadU8();
char fontName[257];
uint8 fontNameLength = bitstream.ReadU8();
memcpy( fontName, bitstream.ReadData( fontNameLength ), fontNameLength );
fontName[ fontNameLength ] = 0;
entry->font->fontID = renderSystem->RegisterFont( fontName );
uint16 numGlyphs = bitstream.ReadU16();
entry->font->glyphs.SetNum( numGlyphs );
if ( flags & BIT( 3 ) ) {
// 32 bit offsets
uint32 offsetTableSize = ( numGlyphs + 1 ) * 4;
idSWFBitStream offsetStream( bitstream.ReadData( offsetTableSize ), offsetTableSize, false );
if ( offsetStream.ReadU32() != offsetTableSize ) {
idLib::Warning( "idSWF::DefineFont2: first glyph offset != offsetTableSize" );
return;
}
uint32 previousOffset = offsetTableSize;
for ( int i = 0; i < numGlyphs; i++ ) {
uint32 nextOffset = offsetStream.ReadU32();
uint32 shapeSize = nextOffset - previousOffset;
previousOffset = nextOffset;
idSWFBitStream shapeStream( bitstream.ReadData( shapeSize ), shapeSize, false );
idSWFShapeParser swfShapeParser;
swfShapeParser.ParseFont( shapeStream, entry->font->glyphs[i] );
}
} else {
// 16 bit offsets
uint16 offsetTableSize = ( numGlyphs + 1 ) * 2;
idSWFBitStream offsetStream( bitstream.ReadData( offsetTableSize ), offsetTableSize, false );
if ( offsetStream.ReadU16() != offsetTableSize ) {
idLib::Warning( "idSWF::DefineFont2: first glyph offset != offsetTableSize" );
return;
}
uint16 previousOffset = offsetTableSize;
for ( int i = 0; i < numGlyphs; i++ ) {
uint16 nextOffset = offsetStream.ReadU16();
uint16 shapeSize = nextOffset - previousOffset;
previousOffset = nextOffset;
idSWFBitStream shapeStream( bitstream.ReadData( shapeSize ), shapeSize, false );
idSWFShapeParser swfShapeParser;
swfShapeParser.ParseFont( shapeStream, entry->font->glyphs[i] );
}
}
if ( flags & BIT( 2 ) ) {
// 16 bit codes
for ( int i = 0; i < numGlyphs; i++ ) {
entry->font->glyphs[i].code = bitstream.ReadU16();
}
} else {
// 8 bit codes
for ( int i = 0; i < numGlyphs; i++ ) {
entry->font->glyphs[i].code = bitstream.ReadU8();
}
}
if ( flags & BIT( 7 ) ) {
entry->font->ascent = bitstream.ReadS16();
entry->font->descent = bitstream.ReadS16();
entry->font->leading = bitstream.ReadS16();
for ( int i = 0; i < numGlyphs; i++ ) {
entry->font->glyphs[i].advance = bitstream.ReadS16();
}
for ( int i = 0; i < numGlyphs; i++ ) {
swfRect_t ignored;
bitstream.ReadRect( ignored );
}
uint16 kearningCount = bitstream.ReadU16();
if ( flags & BIT( 2 ) ) {
for ( int i = 0; i < kearningCount; i++ ) {
uint16 code1 = bitstream.ReadU16();
uint16 code2 = bitstream.ReadU16();
int16 adjustment = bitstream.ReadS16();
}
} else {
for ( int i = 0; i < kearningCount; i++ ) {
uint16 code1 = bitstream.ReadU8();
uint16 code2 = bitstream.ReadU8();
int16 adjustment = bitstream.ReadS16();
}
}
}
}
/*
========================
idSWF::DefineEditText
========================
*/
void idSWF::DefineEditText( idSWFBitStream & bitstream ) {
uint16 characterID = bitstream.ReadU16();
idSWFDictionaryEntry * entry = AddDictionaryEntry( characterID, SWF_DICT_EDITTEXT );
if ( entry == NULL ) {
return;
}
idSWFEditText * edittext = entry->edittext;
bitstream.ReadRect( edittext->bounds );
bitstream.ResetBits();
bool hasText = bitstream.ReadBool();
bool wordWrap = bitstream.ReadBool();
bool multiline = bitstream.ReadBool();
bool password = bitstream.ReadBool();
bool readonly = bitstream.ReadBool();
bool hasTextColor = bitstream.ReadBool();
bool hasMaxLength = bitstream.ReadBool();
bool hasFont = bitstream.ReadBool();
bool hasFontClass = bitstream.ReadBool();
bool autoSize = bitstream.ReadBool();
bool hasLayout = bitstream.ReadBool();
bool noSelect = bitstream.ReadBool();
bool border = bitstream.ReadBool();
bool wasStatic = bitstream.ReadBool();
bool html = bitstream.ReadBool();
bool useOutlines = bitstream.ReadBool();
if ( hasFont ) {
edittext->fontID = bitstream.ReadU16();
edittext->fontHeight = bitstream.ReadU16();
}
if ( hasFontClass ) {
idStr fontClass = bitstream.ReadString();
}
if ( hasTextColor ) {
bitstream.ReadColorRGBA( edittext->color );
}
if ( hasMaxLength ) {
edittext->maxLength = bitstream.ReadU16();
}
if ( hasLayout ) {
edittext->align = (swfEditTextAlign_t)bitstream.ReadU8();
edittext->leftMargin = bitstream.ReadU16();
edittext->rightMargin = bitstream.ReadU16();
edittext->indent = bitstream.ReadU16();
edittext->leading = bitstream.ReadS16();
}
edittext->variable = bitstream.ReadString();
if ( hasText ) {
const char * text = bitstream.ReadString();
idStr initialText;
// convert html tags if necessary
for ( int i = 0; text[i] != 0; i++ ) {
if ( text[i] == '<' ) {
if ( i != 0 && text[i+1] == 'p' ) {
initialText.Append( '\n' );
}
for ( ; text[i] != 0 && text[i] != '>'; i++ ) {
}
continue;
}
byte tc = (byte)text[i];
if ( tc == '&' ) {
idStr special;
for ( i++; text[i] != 0 && text[i] != ';'; i++ ) {
special.Append( text[i] );
}
if ( special.Icmp( "amp" ) == 0 ) {
tc = '&';
} else if ( special.Icmp( "apos" ) == 0 ) {
tc = '\'';
} else if ( special.Icmp( "lt" ) == 0 ) {
tc = '<';
} else if ( special.Icmp( "gt" ) == 0 ) {
tc = '>';
} else if ( special.Icmp( "quot" ) == 0 ) {
tc = '\"';
}
}
initialText.Append( tc );
}
edittext->initialText = initialText;
}
edittext->flags |= wordWrap ? SWF_ET_WORDWRAP : 0;
edittext->flags |= multiline ? SWF_ET_MULTILINE : 0;
edittext->flags |= password ? SWF_ET_PASSWORD : 0;
edittext->flags |= readonly ? SWF_ET_READONLY : 0;
edittext->flags |= autoSize ? SWF_ET_AUTOSIZE : 0;
edittext->flags |= border ? SWF_ET_BORDER : 0;
}
/*
========================
idSWFShapeParser::ParseShape
========================
*/
void idSWFShapeParser::Parse( idSWFBitStream& bitstream, idSWFShape& shape, int recordType )
{
extendedCount = ( recordType > 1 );
lineStyle2 = ( recordType == 4 );
rgba = ( recordType >= 3 );
morph = false;
bitstream.ReadRect( shape.startBounds );
shape.endBounds = shape.startBounds;
if( recordType == 4 )
{
swfRect_t edgeBounds;
bitstream.ReadRect( edgeBounds );
bitstream.ReadU8(); // flags (that we ignore)
}
ReadFillStyle( bitstream );
ParseShapes( bitstream, NULL, false );
TriangulateSoup( shape );
shape.lineDraws.SetNum( lineDraws.Num() );
for( int i = 0; i < lineDraws.Num(); i++ )
{
idSWFShapeDrawLine& ld = shape.lineDraws[i];
swfSPDrawLine_t& spld = lineDraws[i];
ld.style = spld.style;
ld.indices.SetNum( spld.edges.Num() * 3 );
ld.indices.SetNum( 0 );
for( int e = 0; e < spld.edges.Num(); e++ )
{
int v0 = ld.startVerts.AddUnique( verts[ spld.edges[e].start.v0 ] );
ld.indices.Append( v0 );
ld.indices.Append( v0 );
// Rather then tesselating curves at run time, we do them once here by inserting a vert every 10 units
// It may not wind up being 10 actual pixels when rendered because the shape may have scaling applied to it
if( spld.edges[e].start.cp != 0xFFFF )
{
assert( spld.edges[e].end.cp != 0xFFFF );
float length1 = ( verts[ spld.edges[e].start.v0 ] - verts[ spld.edges[e].start.v1 ] ).Length();
float length2 = ( verts[ spld.edges[e].end.v0 ] - verts[ spld.edges[e].end.v1 ] ).Length();
int numPoints = 1 + idMath::Ftoi( Max( length1, length2 ) / 10.0f );
for( int ti = 0; ti < numPoints; ti++ )
{
float t0 = ( ti + 1 ) / ( ( float ) numPoints + 1.0f );
float t1 = ( 1.0f - t0 );
float c1 = t1 * t1;
float c2 = t0 * t1 * 2.0f;
float c3 = t0 * t0;
idVec2 p1 = c1 * verts[ spld.edges[e].start.v0 ];
p1 += c2 * verts[ spld.edges[e].start.cp ];
p1 += c3 * verts[ spld.edges[e].start.v1 ];
int v1 = ld.startVerts.AddUnique( p1 );
ld.indices.Append( v1 );
ld.indices.Append( v1 );
ld.indices.Append( v1 );
}
}
ld.indices.Append( ld.startVerts.AddUnique( verts[ spld.edges[e].start.v1 ] ) );
}
}
}