/*
* Assigns a name to a SWFBlock object.
* Creates an exportlibrary with named symbols to be imported by other
* SWF movies.
* Call SWFMovie_writeExports() when you're done with the exports
* to actually write the tag. If you don't the tag will be added
* at the END of the SWF.
* see also SWFMovie_importCharacter, SWFMovie_importFont
*/
void
SWFMovie_addExport(SWFMovie movie, SWFBlock block, const char *name)
{
switch( SWFBlock_getType(block))
{
case SWF_DEFINESHAPE:
case SWF_DEFINESHAPE2:
case SWF_DEFINESHAPE3:
case SWF_DEFINESHAPE4:
case SWF_DEFINEBUTTON:
case SWF_DEFINEBUTTON2:
case SWF_DEFINESPRITE:
case SWF_DEFINEFONT2:
case SWF_DEFINESOUND:
case SWF_DEFINELOSSLESS:
case SWF_DEFINELOSSLESS2:
case SWF_DEFINEBITS:
case SWF_DEFINEBITSJPEG2:
case SWF_DEFINEBITSJPEG3:
movie->exports = (struct SWFExport_s*)realloc(movie->exports,
(movie->nExports+1) * sizeof(struct SWFExport_s));
movie->exports[movie->nExports].block = block;
movie->exports[movie->nExports].name = strdup(name);
++movie->nExports;
break;
default:
SWF_error("Exporting a character of type %d is not supported", SWFBlock_getType(block));
break;
}
}
void
SWFText_addUTF8String(SWFText text, const char* string, int* advance)
{
unsigned short* widestring;
int len = UTF8ExpandString(string, &widestring);
SWFTextRecord textRecord = text->currentRecord;
/* marginally sloppy to tack on a new record,
but I don't want to deal with concats */
if ( textRecord == NULL || textRecord->string != NULL )
textRecord = SWFText_addTextRecord(text);
/* If SWFText_addTextRecord() failed, return early */
if (NULL == textRecord)
return;
if ( textRecord->font.font == NULL )
SWF_error("font must be set before calling addString");
textRecord->advance = advance;
textRecord->strlen = len;
textRecord->string = widestring;
}
/*
* Creates a shape filled with bitmap
*/
SWFShape
newSWFShapeFromBitmap(SWFBitmap bitmap, int flag)
{
SWFShape shape = newSWFShape();
SWFFillStyle fill;
int width, height;
if ( flag != SWFFILL_TILED_BITMAP && flag != SWFFILL_CLIPPED_BITMAP)
{
SWF_error("Invalid bitmap fill flag");
}
fill = SWFShape_addBitmapFillStyle(shape, bitmap, flag);
width = SWFBitmap_getWidth(bitmap);
height = SWFBitmap_getHeight(bitmap);
SWFShape_setRightFillStyle(shape, fill);
// XXX - scale shouldn't be hardcoded! (here, or in newSWFBitmapFillStyle)
SWFShape_drawScaledLine(shape, width * 20, 0);
SWFShape_drawScaledLine(shape, 0, height * 20);
SWFShape_drawScaledLine(shape, -width * 20, 0);
SWFShape_drawScaledLine(shape, 0, -height * 20);
return shape;
}
void
SWFText_addWideString(SWFText text, const unsigned short* widestring,
int len, int* advance)
{
SWFTextRecord textRecord = text->currentRecord;
/* marginally sloppy to tack on a new record,
but I don't want to deal with concats */
if ( textRecord == NULL || textRecord->string != NULL )
textRecord = SWFText_addTextRecord(text);
/* If SWFText_addTextRecord() failed, return early */
if (NULL == textRecord)
return;
if ( textRecord->font.font == NULL )
SWF_error("font must be set before calling addString");
textRecord->advance = advance;
textRecord->strlen = len;
textRecord->string = (unsigned short*)malloc(sizeof(unsigned short) * len);
/* If malloc failed, return early */
if (NULL == textRecord->string)
{
destroySWFTextRecord(textRecord);
return;
}
memcpy(textRecord->string, widestring, sizeof(unsigned short) * len);
}
/* note: replaces action, doesn't append.. */
void SWFButton_addAction(SWFButton button, SWFAction action, int flags)
{
if ( SWFCharacter_isFinished((SWFCharacter)button) )
SWF_error("Can't alter a button after it's been added to another character");
if ( button->nActions % BUTTONRECORD_INCREMENT == 0 )
{
button->actions = (struct actionRecord*) realloc(button->actions,
(button->nActions + BUTTONRECORD_INCREMENT) *
sizeof(struct actionRecord));
}
button->actions[button->nActions].action = action;
button->actions[button->nActions].flags = flags;
++button->nActions;
}
void
SWFOutput_writeRect(SWFOutput out, SWFRect rect)
{
int nBits = max(max(SWFOutput_numSBits(rect->minX),
SWFOutput_numSBits(rect->maxX)),
max(SWFOutput_numSBits(rect->minY),
SWFOutput_numSBits(rect->maxY)));
if(nBits>=32)
SWF_error("SWFRect too large for file format");
SWFOutput_writeBits(out, nBits, 5);
SWFOutput_writeSBits(out, rect->minX, nBits);
SWFOutput_writeSBits(out, rect->maxX, nBits);
SWFOutput_writeSBits(out, rect->minY, nBits);
SWFOutput_writeSBits(out, rect->maxY, nBits);
}
static void
setPlaceObjectVersion(SWFPlaceObject2Block block, int version)
{
switch(version)
{
case 2:
block->version = version;
BLOCK(block)->type = SWF_PLACEOBJECT2;
break;
case 3:
block->version = version;
BLOCK(block)->type = SWF_PLACEOBJECT3;
break;
default:
SWF_error("setPlaceObjectVersion: invalid version %i\n",
version);
}
}
/* adds a shape character
* Add a shape character to a button for given states
* possible states:
* SWFBUTTON_HIT
* SWFBUTTON_DOWN
* SWFBUTTON_OVER
* SWFBUTTON_UP
* states can be combined using the binary or operator
* deprecated! use SWFButton_addCharacter instead
*/
void SWFButton_addShape(SWFButton button, SWFCharacter character, byte flags)
{
SWFMatrix m;
SWF_warnOnce("SWFButton_addShape is deprecated\nUse SWFButton_addCharacter instead\n");
if ( SWFCharacter_isFinished((SWFCharacter)button) )
SWF_error("Can't alter a button after it's been added to another character");
m = newSWFMatrix(1.0, 0, 0, 1.0, 0, 0);
SWFCharacter_getDependencies((SWFCharacter)character,
&CHARACTER(button)->dependencies,
&CHARACTER(button)->nDependencies);
SWFCharacter_addDependency((SWFCharacter)button, (SWFCharacter)character);
SWFCharacter_setFinished(character);
SWFButton_addRecord(button, newSWFButtonRecord(flags, character, 0, m));
}
void
SWFShape_drawScaledCurve(SWFShape shape,
int controldx, int controldy,
int anchordx, int anchordy)
{
ShapeRecord record;
if ( shape->isEnded )
return;
if ( controldx == 0 && controldy == 0 && anchordx == 0 && anchordy == 0 )
return;
// printf("curve %i,%i, %i, %i\n", controldx, controldy, anchordx, anchordy);
record = newShapeRecord(shape, SHAPERECORD_CURVETO);
record.record.curveTo->controlx = controldx;
record.record.curveTo->controly = controldy;
record.record.curveTo->anchorx = anchordx;
record.record.curveTo->anchory = anchordy;
if ( SWFOutput_numSBits(controldx) >= 18 ||
SWFOutput_numSBits(controldy) >= 18 ||
SWFOutput_numSBits(anchordx) >= 18 ||
SWFOutput_numSBits(anchordy) >= 18 )
SWF_error("Curve parameters too large");
/* including the control point is sloppy, but safe.. */
shape->xpos += controldx;
shape->ypos += controldy;
SWFRect_includePoint(SWFCharacter_getBounds(CHARACTER(shape)),
shape->xpos, shape->ypos, shape->lineWidth);
SWFRect_includePoint(shape->edgeBounds, shape->xpos, shape->ypos, 0);
shape->xpos += anchordx;
shape->ypos += anchordy;
SWFRect_includePoint(SWFCharacter_getBounds(CHARACTER(shape)),
shape->xpos, shape->ypos, shape->lineWidth);
SWFRect_includePoint(shape->edgeBounds, shape->xpos, shape->ypos, 0);
}
void
SWFText_setFont(SWFText text, void* font)
{
SWFTextRecord textRecord = text->currentRecord;
if ( textRecord == NULL || textRecord->string != NULL )
textRecord = SWFText_addTextRecord(text);
textRecord->flags |= SWF_TEXT_HAS_FONT;
/* XXX */
textRecord->isBrowserFont = (BLOCK(font)->type == SWF_DEFINEEDITTEXT);
if ( textRecord->isBrowserFont )
SWF_error("cannot use browser font for SWFText");
// textRecord->font.browserFont = (SWFBrowserFont)font;
else
textRecord->font.font = (SWFFont)font;
}
void
SWFShape_setRightFillStyle(SWFShape shape, SWFFillStyle fill)
{
ShapeRecord record;
if ( shape->isEnded || shape->isMorph )
return;
record = addStyleRecord(shape);
if ( fill != NOFILL )
{
if ( SWFFill_getIdx(fill) > *shape->nFills )
SWF_error("Invalid fill idx");
record.record.stateChange->rightFill = SWFFill_getIdx(fill);
}
else
record.record.stateChange->rightFill = 0;
record.record.stateChange->flags |= SWF_SHAPE_FILLSTYLE1FLAG;
}
/*
* Assigns a name to a SWFBlock object.
* Creates an exportlibrary with named symbols to be imported by other
* SWF movies.
* Call SWFMovie_writeExports() when you're done with the exports
* to actually write the tag. If you don't the tag will be added
* at the END of the SWF.
* see also SWFMovie_importCharacter, SWFMovie_importFont
*/
void
SWFMovie_addExport(SWFMovie movie, SWFBlock block, const char *name)
{
switch( SWFBlock_getType(block))
{
case SWF_DEFINESHAPE:
case SWF_DEFINESHAPE2:
case SWF_DEFINESHAPE3:
/*SWF_warn("Exporting a shape character is not ensured to work");*/
case SWF_DEFINESPRITE:
case SWF_DEFINEFONT2:
movie->exports = (struct SWFExport_s*)realloc(movie->exports,
(movie->nExports+1) * sizeof(struct SWFExport_s));
movie->exports[movie->nExports].block = block;
movie->exports[movie->nExports].name = strdup(name);
++movie->nExports;
break;
default:
SWF_error("Exporting a character of type %d is not supported", SWFBlock_getType(block));
break;
}
}
SWFDBLBitmapData newSWFDBLBitmapData_fromGifInput(SWFInput input)
{
SWF_error("newSWFDBLBitmapData_fromGifInput can't be used (no gif compiled into this build of Ming).\n");
return NULL;
}
SWFDBLBitmap
newSWFDBLBitmap_fromInput(SWFInput input)
{
SWFDBLBitmap dbl;
int version;
int width, height;
dbl = (SWFDBLBitmap)malloc(sizeof(struct SWFDBLBitmap_s));
SWFCharacterInit((SWFCharacter)dbl);
CHARACTERID(dbl) = ++SWF_gNumCharacters;
BLOCK(dbl)->writeBlock = writeSWFDBLBitmapToMethod;
BLOCK(dbl)->complete = completeSWFDBLBitmap;
BLOCK(dbl)->dtor = (destroySWFBlockMethod) destroySWFCharacter;
dbl->input = input;
if ( SWFInput_getChar(input) != 'D' ||
SWFInput_getChar(input) != 'B' )
{
SWF_error("File is not a DBL file!");
}
version = SWFInput_getChar(input);
if ( version != 'L' && version != 'l' )
SWF_error("File is not a DBL file!");
switch ( SWFInput_getChar(input) )
{
case 1:
BLOCK(dbl)->type = SWF_DEFINELOSSLESS;
break;
case 2:
BLOCK(dbl)->type = SWF_DEFINELOSSLESS2;
break;
default:
SWF_error("Unexpected DBL type byte!");
}
if ( version == 'l' )
{
BLOCK(dbl)->length = SWFInput_getUInt32_BE(input);
BLOCK(dbl)->length += 2; /* character id */
}
else
{
/* first version used a 2-byte file length.. brilliant, eh? */
BLOCK(dbl)->length = SWFInput_getUInt16_BE(input);
BLOCK(dbl)->length += 2; /* character id */
}
SWFInput_getChar(input); /* format */
width = SWFInput_getUInt16(input);
height = SWFInput_getUInt16(input);
/* roll back to beginning of dbl data */
SWFInput_seek(input, -5, SEEK_CUR);
CHARACTER(dbl)->bounds = newSWFRect(0, width, 0, height);
return dbl;
}
void
SWFShape_writeShapeRecord(SWFShape shape, ShapeRecord record, SWFOutput out)
{
switch(record.type)
{
case SHAPERECORD_STATECHANGE:
{
int flags = record.record.stateChange->flags;
if(flags == 0)
return;
SWFOutput_writeBits(out, flags, 6);
if(flags & SWF_SHAPE_MOVETOFLAG)
{
int x = record.record.stateChange->moveToX;
int y = record.record.stateChange->moveToY;
int nBits = max(SWFOutput_numSBits(x), SWFOutput_numSBits(y));
SWF_assert(nBits<32);
SWFOutput_writeBits(out, nBits, 5);
SWFOutput_writeSBits(out, x, nBits);
SWFOutput_writeSBits(out, y, nBits);
}
if(flags & SWF_SHAPE_FILLSTYLE0FLAG)
{
SWFOutput_writeBits(out, record.record.stateChange->leftFill,
SWFOutput_numBits(shape->nFills));
}
if(flags & SWF_SHAPE_FILLSTYLE1FLAG)
{
SWFOutput_writeBits(out, record.record.stateChange->rightFill,
SWFOutput_numBits(shape->nFills));
}
if(flags & SWF_SHAPE_LINESTYLEFLAG)
{
SWFOutput_writeBits(out, record.record.stateChange->line,
SWFOutput_numBits(shape->nLines));
}
/* newstyle's never used. But this is what it looks like:
if ( flags & SWF_SHAPE_NEWSTYLEFLAG )
{
SWFOutput_writeFillStyles(shape->out, shape->fills, shape->nFills,
BLOCK(shape)->type);
SWFOutput_writeLineStyles(shape->out, shape->lines, shape->nLines,
BLOCK(shape)->type);
SWFOutput_writeBits(shape->out, SWFOutput_numBits(shape->nFills), 4);
SWFOutput_writeBits(shape->out, SWFOutput_numBits(shape->nLines), 4);
}
*/
break;
}
case SHAPERECORD_LINETO:
{
int nBits;
int dx = record.record.lineTo->dx;
int dy = record.record.lineTo->dy;
SWFOutput_writeBits(out, 3, 2); /* straight edge */
if(dx==0)
{
nBits = SWFOutput_numSBits(dy);
SWF_assert(nBits<18);
SWFOutput_writeBits(out, nBits-2, 4);
SWFOutput_writeBits(out, 1, 2); /* vertical line */
SWFOutput_writeSBits(out, dy, nBits);
}
else if(dy==0)
{
nBits = SWFOutput_numSBits(dx);
SWF_assert(nBits<18);
SWFOutput_writeBits(out, nBits-2, 4);
SWFOutput_writeBits(out, 0, 2); /* horizontal line */
SWFOutput_writeSBits(out, dx, nBits);
}
else
{
nBits = max(SWFOutput_numSBits(dx), SWFOutput_numSBits(dy));
SWF_assert(nBits<18);
SWFOutput_writeBits(out, nBits-2, 4);
SWFOutput_writeBits(out, 1, 1); /* general line */
SWFOutput_writeSBits(out, dx, nBits);
SWFOutput_writeSBits(out, dy, nBits);
}
break;
}
case SHAPERECORD_CURVETO:
{
int controlx = record.record.curveTo->controlx;
int controly = record.record.curveTo->controly;
int anchorx = record.record.curveTo->anchorx;
int anchory = record.record.curveTo->anchory;
int nBits = max(max(SWFOutput_numSBits(controlx),
SWFOutput_numSBits(controly)),
max(SWFOutput_numSBits(anchorx),
SWFOutput_numSBits(anchory)));
if ( nBits < 2 )
nBits = 2;
SWF_assert(nBits < 18);
SWFOutput_writeBits(out, 2, 2); /* curved edge */
SWFOutput_writeBits(out, nBits-2, 4);
SWFOutput_writeSBits(out, controlx, nBits);
SWFOutput_writeSBits(out, controly, nBits);
SWFOutput_writeSBits(out, anchorx, nBits);
SWFOutput_writeSBits(out, anchory, nBits);
break;
}
default:
SWF_error("Unknown shapeRecordType");
}
}
void
SWFText_resolveCodes(SWFText text)
{
SWFTextRecord textRecord, oldRecord;
SWFOutput out = text->out;
int nGlyphBits = 0;
int len, i;
int curX = 0, curY = 0, curH = 0;
textRecord = text->initialRecord;
while ( textRecord != NULL )
{
SWFTextRecord_computeAdvances(textRecord);
text->nAdvanceBits = max(text->nAdvanceBits, textRecord->nAdvanceBits);
if ( textRecord->flags & SWF_TEXT_HAS_FONT )
{
if ( textRecord->isBrowserFont )
{
/* XXX - assume browser fonts have 8bit glyph table? */
nGlyphBits = max(nGlyphBits, 8);
}
else
{
int fontGlyphs = SWFFontCharacter_getNGlyphs(textRecord->font.fontchar);
nGlyphBits = max(nGlyphBits, SWFOutput_numBits(fontGlyphs-1));
}
}
textRecord = textRecord->next;
}
textRecord = text->initialRecord;
while ( textRecord != NULL )
{
oldRecord = textRecord;
if ( textRecord->string == NULL || textRecord->strlen == 0 )
{
textRecord = textRecord->next;
destroySWFTextRecord(oldRecord);
continue;
}
SWFOutput_byteAlign(out);
/* Raff says the spec lies- there's always a change record, even if
it's empty, and the string record length is the full 8 bits. */
SWFOutput_writeUInt8(out, textRecord->flags | SWF_TEXT_STATE_CHANGE);
if ( textRecord->flags & SWF_TEXT_HAS_FONT )
{
if ( textRecord->isBrowserFont )
SWFOutput_writeUInt16(out, CHARACTERID(textRecord->font.browserFont));
else
SWFOutput_writeUInt16(out, CHARACTERID(textRecord->font.fontchar));
}
if ( textRecord->flags & SWF_TEXT_HAS_COLOR )
{
SWFOutput_writeUInt8(out, textRecord->r);
SWFOutput_writeUInt8(out, textRecord->g);
SWFOutput_writeUInt8(out, textRecord->b);
if ( BLOCK(text)->type == SWF_DEFINETEXT2 )
SWFOutput_writeUInt8(out, textRecord->a);
}
if ( textRecord->flags & SWF_TEXT_HAS_X )
{
SWFOutput_writeUInt16(out, textRecord->x);
curX = textRecord->x;
}
if ( textRecord->flags & SWF_TEXT_HAS_Y )
{
SWFOutput_writeUInt16(out, textRecord->y);
curY = textRecord->y;
}
if ( textRecord->flags & SWF_TEXT_HAS_FONT )
{
SWFOutput_writeUInt16(out, textRecord->height);
curH = textRecord->height;
}
/* record type 0: string data */
len = textRecord->strlen;
if ( len >= 256 )
SWF_error("Found text record >= 256 characters!");
SWFOutput_writeUInt8(out, len);
/* XXX - er, browser fonts in text objects crash the player..
Maybe because there's no definefontinfo block? */
if ( textRecord->isBrowserFont )
{
for ( i=0; i<len; ++i )
{
SWFOutput_writeBits(out, textRecord->string[i], nGlyphBits);
SWFOutput_writeBits(out, textRecord->advance[i], text->nAdvanceBits);
/* XXX - fudging the text character bounds since we don't
have font metrics */
if ( CHARACTER(text)->bounds )
{
SWFRect_includePoint(CHARACTER(text)->bounds, curX, curY, 0);
SWFRect_includePoint(CHARACTER(text)->bounds,
curX + curH, curY + curH, 0);
}
else
{
CHARACTER(text)->bounds =
newSWFRect(curX, curX + curH, curY, curY + curH);
}
curX += curH;
}
}
else
{
SWFFontCharacter fontchar = textRecord->font.fontchar;
SWFFont font = SWFFontCharacter_getFont(fontchar);
if ( font == NULL )
SWF_error("Couldn't find font");
for ( i=0; i<len; ++i )
{
SWFRect glyphBounds;
int minX, maxX, minY, maxY;
unsigned short code =
SWFFontCharacter_getGlyphCode(fontchar, textRecord->string[i]);
glyphBounds = SWFFont_getGlyphBounds(font, code);
SWFRect_getBounds(glyphBounds, &minX, &maxX, &minY, &maxY);
SWFOutput_writeBits(out, textRecord->string[i], nGlyphBits);
SWFOutput_writeBits(out, textRecord->advance[i], text->nAdvanceBits);
if ( CHARACTER(text)->bounds )
{
SWFRect_includePoint(CHARACTER(text)->bounds,
curX + minX * curH / 1024,
curY + minY * curH / 1024, 0);
SWFRect_includePoint(CHARACTER(text)->bounds,
curX + maxX * curH / 1024,
curY + maxY * curH / 1024, 0);
}
else
{
CHARACTER(text)->bounds =
newSWFRect(curX + minX * curH /1024, curX + maxX * curH /1024,
curY + minY * curH /1024, curY + maxY * curH /1024);
}
if ( textRecord->advance != NULL )
curX += textRecord->advance[i];
}
}
textRecord = textRecord->next;
destroySWFTextRecord(oldRecord);
}
SWFOutput_writeUInt8(out, 0); /* end text records */
text->nGlyphBits = nGlyphBits;
text->initialRecord = NULL;
text->currentRecord = NULL;
}
void
SWFShape_drawScaledGlyph(SWFShape shape,
SWFFont font, unsigned short c, int size)
{
byte *p = SWFFont_findGlyph(font, c);
byte **f = &p;
int moveBits, x=0, y=0;
int straight, numBits;
int numFillBits, numLineBits;
/* moveTos in the record are absolute, but we want to draw from the current
location. grr. */
int startX = shape->xpos;
int startY = shape->ypos;
int style;
byteAlign();
if ( (numFillBits = readBitsP(f, 4)) != 1 ) /* fill bits */
SWF_error("SWFShape_drawGlyph: bad file format (was expecting fill bits = 1)");
if ( (numLineBits = readBitsP(f, 4)) > 1 ) /* line bits */
SWF_error("SWFShape_drawGlyph: bad file format (was expecting line bits = 0)");
/* now we get to parse the shape commands. Oh boy.
the first one will be a non-edge block- grab the moveto loc */
readBitsP(f, 2); /* type 0, newstyles */
style = readBitsP(f, 3);
if(readBitsP(f, 1))
{ moveBits = readBitsP(f, 5);
x = startX + readSBitsP(f, moveBits);
y = startY + readSBitsP(f, moveBits);
}
else if(style == 0) /* no style, no move => space character */
return;
SWFShape_moveScaledPenTo(shape, x*size/1024, y*size/1024);
if ( style & 1 )
if ( readBitsP(f, numFillBits) != 0 ) /* fill0 = 0 */
SWF_error("SWFFont_getShape: bad file format (was expecting fill0 = 0)");
if ( style & 2 )
if ( readBitsP(f, numFillBits) != 1 ) /* fill1 = 1 */
SWF_error("SWFFont_getShape: bad file format (was expecting fill1 = 1)");
if ( style & 4 )
if ( readBitsP(f, numLineBits) != 0 ) /* line = 1 */
SWF_error("SWFFont_getShape: bad file format (was expecting line = 0)");
/* translate the glyph's shape records into drawing commands */
for ( ;; )
{
if ( readBitsP(f, 1) == 0 )
{
/* it's a moveTo or a shape end */
if ( readBitsP(f, 5) == 0 )
break;
moveBits = readBitsP(f, 5);
x = startX + readSBitsP(f, moveBits);
y = startY + readSBitsP(f, moveBits);
SWFShape_moveScaledPenTo(shape, x*size/1024, y*size/1024);
continue;
}
straight = readBitsP(f, 1);
numBits = readBitsP(f, 4)+2;
if ( straight==1 )
{
if ( readBitsP(f, 1) ) /* general line */
{
x += readSBitsP(f, numBits);
y += readSBitsP(f, numBits);
}
else
{
if ( readBitsP(f, 1) ) /* vert = 1 */
y += readSBitsP(f, numBits);
else
x += readSBitsP(f, numBits);
}
SWFShape_drawScaledLineTo(shape, x*size/1024, y*size/1024);
}
else
{
int controlX = readSBitsP(f, numBits);
int controlY = readSBitsP(f, numBits);
int anchorX = readSBitsP(f, numBits);
int anchorY = readSBitsP(f, numBits);
SWFShape_drawScaledCurveTo(shape,
(x+controlX)*size/1024,
(y+controlY)*size/1024,
(x+controlX+anchorX)*size/1024,
(y+controlY+anchorY)*size/1024);
x += controlX + anchorX;
y += controlY + anchorY;
}
}
/* no idea where the pen was left */
SWFShape_moveScaledPenTo(shape, startX, startY);
}
void
SWFShape_writeShapeRecord(SWFShape shape, ShapeRecord record)
{
SWFOutput out = shape->out;
switch(record.type)
{
case SHAPERECORD_STATECHANGE:
{
int flags = record.record.stateChange->flags;
if(flags == 0)
return;
SWFOutput_writeBits(out, flags, 6);
if(flags & SWF_SHAPE_MOVETOFLAG)
{
int x = record.record.stateChange->moveToX;
int y = record.record.stateChange->moveToY;
int nBits = max(SWFOutput_numSBits(x), SWFOutput_numSBits(y));
SWF_assert(nBits<32);
SWFOutput_writeBits(out, nBits, 5);
SWFOutput_writeSBits(out, x, nBits);
SWFOutput_writeSBits(out, y, nBits);
}
if(flags & SWF_SHAPE_FILLSTYLE0FLAG)
{
SWFOutput_writeBits(out, record.record.stateChange->leftFill,
SWFOutput_numBits(shape->nFills2));
}
if(flags & SWF_SHAPE_FILLSTYLE1FLAG)
{
SWFOutput_writeBits(out, record.record.stateChange->rightFill,
SWFOutput_numBits(shape->nFills2));
}
if(flags & SWF_SHAPE_LINESTYLEFLAG)
{
SWFOutput_writeBits(out, record.record.stateChange->line,
SWFOutput_numBits(shape->nLines2));
}
/* newstyle's never used. But this is what it looks like: */
if ( flags & SWF_SHAPE_NEWSTYLEFLAG )
{
int i;
shape->lines = &record.record.stateChange->lines;
shape->fills = &record.record.stateChange->fills;
shape->nLines = &record.record.stateChange->nLines;
shape->nFills = &record.record.stateChange->nFills;
shape->nFills2 = *shape->nFills;
shape->nLines2 = *shape->nLines;
SWFOutput_writeFillStyles(shape->out, *shape->fills, *shape->nFills,
BLOCK(shape)->type);
SWFOutput_writeLineStyles(shape->out, *shape->lines, *shape->nLines,
BLOCK(shape)->type);
SWFOutput_writeBits(shape->out, SWFOutput_numBits(*shape->nFills), 4);
SWFOutput_writeBits(shape->out, SWFOutput_numBits(*shape->nLines), 4);
for ( i=0; i<*shape->nFills; ++i )
{
SWFMatrix matrix = SWFFillStyle_getMatrix((*shape->fills)[i]);
if ( matrix != NULL )
destroySWFMatrix(matrix);
/* gradients and bitmaps are destroyed separately */
free((*shape->fills)[i]);
}
if ( *shape->fills != NULL )
free(*shape->fills);
for ( i=0; i<*shape->nLines; ++i )
free((*shape->lines)[i]);
if ( *shape->lines != NULL )
free(*shape->lines);
}
break;
}
case SHAPERECORD_LINETO:
{
int nBits;
int dx = record.record.lineTo->dx;
int dy = record.record.lineTo->dy;
SWFOutput_writeBits(out, 3, 2); /* straight edge */
if(dx==0 && dy!=0)
{
nBits = SWFOutput_numSBits(dy);
SWF_assert(nBits<18);
SWFOutput_writeBits(out, nBits-2, 4);
SWFOutput_writeBits(out, 1, 2); /* vertical line */
SWFOutput_writeSBits(out, dy, nBits);
}
else if(dy==0 && dx!=0)
{
nBits = SWFOutput_numSBits(dx);
SWF_assert(nBits<18);
SWFOutput_writeBits(out, nBits-2, 4);
SWFOutput_writeBits(out, 0, 2); /* horizontal line */
SWFOutput_writeSBits(out, dx, nBits);
}
else
{
nBits = max(SWFOutput_numSBits(dx), SWFOutput_numSBits(dy));
nBits = max(nBits, 2);
SWF_assert(nBits<18);
SWFOutput_writeBits(out, nBits-2, 4);
SWFOutput_writeBits(out, 1, 1); /* general line */
SWFOutput_writeSBits(out, dx, nBits);
SWFOutput_writeSBits(out, dy, nBits);
}
break;
}
case SHAPERECORD_CURVETO:
{
int controlx = record.record.curveTo->controlx;
int controly = record.record.curveTo->controly;
int anchorx = record.record.curveTo->anchorx;
int anchory = record.record.curveTo->anchory;
int nBits = max(max(SWFOutput_numSBits(controlx),
SWFOutput_numSBits(controly)),
max(SWFOutput_numSBits(anchorx),
SWFOutput_numSBits(anchory)));
if ( nBits < 2 )
nBits = 2;
SWF_assert(nBits < 18);
SWFOutput_writeBits(out, 2, 2); /* curved edge */
SWFOutput_writeBits(out, nBits-2, 4);
SWFOutput_writeSBits(out, controlx, nBits);
SWFOutput_writeSBits(out, controly, nBits);
SWFOutput_writeSBits(out, anchorx, nBits);
SWFOutput_writeSBits(out, anchory, nBits);
break;
}
default:
SWF_error("Unknown shapeRecordType");
}
}
SWFDBLBitmapData newSWFDBLBitmapData_fromGifFile(const char * fileName)
{
SWF_error("newSWFDBLBitmapData_fromGifFile can't be used (no gif compiled into this build of Ming).\n");
return NULL;
}
SWFOutput
SWFMovie_toOutput(SWFMovie movie, int level)
{
int swflength;
#if USE_ZLIB
int status;
#endif
SWFOutput header, tempbuffer=0, buffer, swfbuffer;
SWFBlock lastBlock;
unsigned long compresslength;
if ( movie->nExports > 0 )
SWFMovie_writeExports(movie);
if ( movie->metadata != NULL)
{
SWFMovie_addBlock(movie, (SWFBlock)movie->metadata);
movie->metadata = NULL; // do not destroy with movie if added as block
}
/* Add a terminating SHOWFRAME tag if not already there */
lastBlock = SWFBlockList_getLastBlock(movie->blockList);
if ( ! lastBlock || SWFBlock_getType(lastBlock) != SWF_SHOWFRAME )
{
SWFMovie_nextFrame(movie);
}
while ( movie->nFrames < movie->totalFrames )
SWFMovie_nextFrame(movie);
if(movie->symbolClass)
SWFMovie_addBlock(movie, (SWFBlock)movie->symbolClass);
if(movie->sceneData)
SWFMovie_addBlock(movie, (SWFBlock)movie->sceneData);
SWFMovie_addBlock(movie, newSWFEndBlock());
// add five for the setbackground block..
swflength = SWFBlockList_completeBlocks(movie->blockList, movie->version);
/* XXX - hack */
SWFDisplayList_rewindSoundStream(movie->displayList);
header = newSizedSWFOutput(23);
SWFOutput_writeRect(header, movie->bounds);
SWFOutput_writeUInt16(header, (int)floor(movie->rate*256));
SWFOutput_writeUInt16(header, movie->nFrames);
/* SWF >= 8: first block _must_ be SWF_FILEATTRIBUTES */
if(movie->fattrs)
writeSWFBlockToMethod((SWFBlock)movie->fattrs, SWFOutputMethod, header);
if(movie->backgroundBlock)
writeSWFBlockToMethod(movie->backgroundBlock, SWFOutputMethod, header);
if(movie->limits)
writeSWFBlockToMethod((SWFBlock)movie->limits, SWFOutputMethod, header);
SWFOutput_byteAlign(header);
swflength += 8 + SWFOutput_getLength(header);
// compression level check
#if USE_ZLIB
if (level < -1) level = -1;
if (level > 9) level = 9;
#else
if ( level != -1 )
{
SWF_warn("No zlib support compiled in, "
"cannot generate compressed output");
level = -1;
}
#endif
// reserve output buffer
if(level >= 0)
{ // a little bit more than the uncompressed data
compresslength = swflength + (swflength/1000) + 15 + 1;
swfbuffer = newSizedSWFOutput( compresslength + 8 );
}
else
swfbuffer = newSizedSWFOutput( swflength );
if (level >= 0) SWFOutput_writeUInt8 (swfbuffer, 'C');
else SWFOutput_writeUInt8 (swfbuffer, 'F');
SWFOutput_writeUInt8 (swfbuffer, 'W');
SWFOutput_writeUInt8 (swfbuffer, 'S');
SWFOutput_writeUInt8 (swfbuffer, movie->version);
// Movie length
SWFOutput_writeUInt32(swfbuffer, swflength);
if(level >= 0)
buffer = tempbuffer = newSizedSWFOutput( swflength - 8);
else
buffer = swfbuffer;
SWFOutput_writeToMethod(header, SWFOutputMethod, buffer);
destroySWFOutput(header);
// fill swfbuffer with blocklist
SWFBlockList_writeBlocksToMethod(movie->blockList, SWFOutputMethod, buffer);
#if USE_ZLIB
if (level >= 0)
{
status = compress2 ( (Bytef*) SWFOutput_getBuffer(swfbuffer)+8, &compresslength, SWFOutput_getBuffer(tempbuffer), SWFOutput_getLength(tempbuffer), level);
if (status == Z_OK) {
SWFOutput_truncate(swfbuffer, compresslength+8);
destroySWFOutput(tempbuffer);
} else SWF_error("compression failed");
}
#endif // ndef USE_ZLIB
return swfbuffer;
}
void
SWFOutput_writeCXform(SWFOutput out, SWFCXform cXform, SWFBlocktype type)
{
int nBits = 0;
int hasAdd, hasMult;
SWFOutput_byteAlign(out);
hasAdd = ( cXform->rAdd != 0 || cXform->gAdd != 0 ||
cXform->bAdd != 0 || cXform->aAdd != 0 );
hasMult = ( cXform->rMult != 256 || cXform->gMult != 256 ||
cXform->bMult != 256 || cXform->aMult != 256 );
SWFOutput_writeBits(out, hasAdd ? 1 : 0, 1);
SWFOutput_writeBits(out, hasMult ? 1 : 0, 1);
if ( hasAdd )
{
nBits = max(nBits, SWFOutput_numSBits(cXform->rAdd));
nBits = max(nBits, SWFOutput_numSBits(cXform->gAdd));
nBits = max(nBits, SWFOutput_numSBits(cXform->bAdd));
if ( type == SWF_PLACEOBJECT2 )
nBits = max(nBits, SWFOutput_numSBits(cXform->aAdd));
}
if ( hasMult )
{
nBits = max(nBits, SWFOutput_numSBits(cXform->rMult));
nBits = max(nBits, SWFOutput_numSBits(cXform->gMult));
nBits = max(nBits, SWFOutput_numSBits(cXform->bMult));
if ( type == SWF_PLACEOBJECT2 )
nBits = max(nBits, SWFOutput_numSBits(cXform->aMult));
}
if ( nBits>=16 )
SWF_error("color transform data out of scale");
SWFOutput_writeBits(out, nBits, 4);
if ( hasMult )
{
SWFOutput_writeSBits(out, cXform->rMult, nBits);
SWFOutput_writeSBits(out, cXform->gMult, nBits);
SWFOutput_writeSBits(out, cXform->bMult, nBits);
if ( type == SWF_PLACEOBJECT2 )
SWFOutput_writeSBits(out, cXform->aMult, nBits);
}
if ( hasAdd )
{
SWFOutput_writeSBits(out, cXform->rAdd, nBits);
SWFOutput_writeSBits(out, cXform->gAdd, nBits);
SWFOutput_writeSBits(out, cXform->bAdd, nBits);
if ( type == SWF_PLACEOBJECT2 )
SWFOutput_writeSBits(out, cXform->aAdd, nBits);
}
}
void
SWFText_resolveCodes(SWFText text)
{
SWFTextRecord textRecord, oldRecord;
SWFOutput out = text->out;
int nGlyphBits = 0;
int len, i;
int curX = 0, curY = 0, curH = 0;
textRecord = text->initialRecord;
while ( textRecord != NULL )
{
SWFTextRecord_computeAdvances(textRecord);
text->nAdvanceBits = max(text->nAdvanceBits, textRecord->nAdvanceBits);
if ( textRecord->flags & SWF_TEXT_HAS_FONT )
{
int fontGlyphs = SWFFontCharacter_getNGlyphs(textRecord->font.fontchar);
nGlyphBits = max(nGlyphBits, SWFOutput_numBits(fontGlyphs-1));
}
textRecord = textRecord->next;
}
textRecord = text->initialRecord;
while ( textRecord != NULL )
{
SWFFontCharacter fontchar = NULL;
SWFFont font = NULL;
oldRecord = textRecord;
if ( textRecord->string == NULL || textRecord->strlen == 0 )
{
textRecord = textRecord->next;
destroySWFTextRecord(oldRecord);
continue;
}
SWFOutput_byteAlign(out);
/* Raff says the spec lies- there's always a change record, even if
it's empty, and the string record length is the full 8 bits. */
SWFOutput_writeUInt8(out, textRecord->flags | SWF_TEXT_STATE_CHANGE);
if ( textRecord->flags & SWF_TEXT_HAS_FONT )
SWFOutput_writeUInt16(out, CHARACTERID(textRecord->font.fontchar));
if ( textRecord->flags & SWF_TEXT_HAS_COLOR )
{
SWFOutput_writeUInt8(out, textRecord->r);
SWFOutput_writeUInt8(out, textRecord->g);
SWFOutput_writeUInt8(out, textRecord->b);
if ( BLOCK(text)->type == SWF_DEFINETEXT2 )
SWFOutput_writeUInt8(out, textRecord->a);
}
if ( textRecord->flags & SWF_TEXT_HAS_X )
{
SWFOutput_writeUInt16(out, textRecord->x);
curX = textRecord->x;
}
if ( textRecord->flags & SWF_TEXT_HAS_Y )
{
SWFOutput_writeUInt16(out, textRecord->y);
curY = textRecord->y;
}
if ( textRecord->flags & SWF_TEXT_HAS_FONT )
{
SWFOutput_writeUInt16(out, textRecord->height);
curH = textRecord->height;
}
/* record type 0: string data */
len = textRecord->strlen;
if ( len >= 256 )
SWF_error("Found text record >= 256 characters!");
SWFOutput_writeUInt8(out, len);
fontchar = textRecord->font.fontchar;
font = SWFFontCharacter_getFont(fontchar);
if ( font == NULL )
SWF_error("Couldn't find font");
for ( i=0; i<len; ++i )
{
SWFRect glyphBounds;
int minX, maxX, minY, maxY;
unsigned short font_glyphcode =
SWFFont_findGlyphCode(font, textRecord->string[i]);
glyphBounds = SWFFont_getGlyphBounds(font,font_glyphcode);
SWFRect_getBounds(glyphBounds, &minX, &maxX, &minY, &maxY);
int fontchar_glyphcode =
SWFFontCharacter_findGlyphCode(fontchar, textRecord->string[i]);
if (fontchar_glyphcode < 0) {
SWF_error("SWFText_resolveCodes: no suitable glyph available (in dumped font)");
}
SWFOutput_writeBits(out, (unsigned short) fontchar_glyphcode, nGlyphBits);
SWFOutput_writeBits(out, textRecord->advance[i], text->nAdvanceBits);
if ( CHARACTER(text)->bounds )
{
SWFRect_includePoint(CHARACTER(text)->bounds, curX + minX * curH / 1024,
curY + minY * curH / 1024, 0);
SWFRect_includePoint(CHARACTER(text)->bounds, curX + maxX * curH / 1024,
curY + maxY * curH / 1024, 0);
}
else
{
CHARACTER(text)->bounds = newSWFRect(curX + minX * curH /1024,
curX + maxX * curH /1024, curY + minY * curH /1024,
curY + maxY * curH /1024);
}
if ( textRecord->advance != NULL )
curX += textRecord->advance[i];
}
textRecord = textRecord->next;
destroySWFTextRecord(oldRecord);
}
SWFOutput_writeUInt8(out, 0); /* end text records */
text->nGlyphBits = nGlyphBits;
text->initialRecord = NULL;
text->currentRecord = NULL;
}
void
SWFOutput_writeMatrix(SWFOutput out, SWFMatrix matrix)
{
int nBits;
SWFOutput_byteAlign(out);
if ( (matrix->scaleX == 0 && matrix->scaleY == 0) ||
(matrix->scaleX == 1.0 && matrix->scaleY == 1.0) )
{
SWFOutput_writeBits(out, 0, 1);
}
else
{
int xScale = (int)floor(matrix->scaleX * (1<<FIXEDBITS));
int yScale = (int)floor(matrix->scaleY * (1<<FIXEDBITS));
SWFOutput_writeBits(out, 1, 1);
nBits = max(SWFOutput_numSBits(xScale), SWFOutput_numSBits(yScale));
if(nBits >= 32)
SWF_error("SWFMatrix_scale: number is to big. "
" Requested %i bits\n", nBits);
SWFOutput_writeBits(out, nBits, 5);
SWFOutput_writeSBits(out, xScale, nBits);
SWFOutput_writeSBits(out, yScale, nBits);
}
if ( matrix->rotate0 == 0 && matrix->rotate1 == 0 )
{
SWFOutput_writeBits(out, 0, 1);
}
else
{
int rot0 = (int)floor(matrix->rotate0 * (1<<FIXEDBITS));
int rot1 = (int)floor(matrix->rotate1 * (1<<FIXEDBITS));
SWFOutput_writeBits(out, 1, 1);
nBits = max(SWFOutput_numSBits(rot0), SWFOutput_numSBits(rot1));
if(nBits >= 32)
SWF_error("SWFMatrix_rotate: number is to big. "
" Requested %i bits\n", nBits);
SWFOutput_writeBits(out, nBits, 5);
SWFOutput_writeSBits(out, rot0, nBits);
SWFOutput_writeSBits(out, rot1, nBits);
}
if ( matrix->translateX != 0 || matrix->translateY != 0 )
{
nBits = max(SWFOutput_numSBits(matrix->translateX),
SWFOutput_numSBits(matrix->translateY));
if(nBits >= 32)
SWF_error("SWFMatrix_translate: number is to big. "
" Requested %i bits\n", nBits);
}
else
nBits = 0;
SWFOutput_writeBits(out, nBits, 5);
SWFOutput_writeSBits(out, matrix->translateX, nBits);
SWFOutput_writeSBits(out, matrix->translateY, nBits);
}
