script.cc

linux下的flash播放器源程序

	    // Get each of the colors.
	    for (U16 j = 0; j < nbGradients; j++)
	    {
		GetByte();
		GetByte();
		GetByte();
		GetByte();
		if (getAlpha) {
		    GetByte();
		}
	    }
	}
	else if (fillStyle & 0x40)
	{
	    type = (FillType) (fillStyle & 0x41);

	    // Get the bitmapId
	    GetWord();

	    // Get the bitmap matrix.
	    GetMatrix(&matrix);
	}
	else
	{
	    type = (FillType) 0;

	    // A solid color
	    GetByte();
	    GetByte();
	    GetByte();
	    if (getAlpha) {
		GetByte();
	    }

	    /*
	    printf("fillstyle: %x %x %x %x\n",			
		   defs[i].color.red,
		   defs[i].color.green,
		   defs[i].color.blue,
		   defs[i].color.alpha);
	    */
	}
    }
}

void CInputScript::ParseLineStyle(long getAlpha)
{
    long i;

    // Get the number of lines.
    U16 nLines = GetByte();

    // Do we have a larger number?
    if (nLines == 255)
    {
	// Get the larger number.
	nLines = GetWord();
    }

    // Get each of the line styles.
    for (i = 0; i < nLines; i++)
    {
	GetWord();
	GetByte();
	GetByte();
	GetByte();
	if (getAlpha) {
	    GetByte();
	}
    }
}


void CInputScript::ParseDefineShape(int level)
{
    Shape *shape;
    Rect rect;
    U32 tagid;

    tagid = (U32) GetWord();
    shape = new Shape(tagid,level);
    if (shape == NULL) {
	outOfMemory = 1;
    	return;
    }
    shape->dict = this;

    // Get the frame information.
    GetRect(&rect);

    shape->setBoundingBox(rect);

    shape->file_ptr = (unsigned char*)malloc(m_tagEnd-m_filePos);
    if (shape->file_ptr == NULL) {
	outOfMemory = 1;
    	delete shape;
	return;
    }
    memcpy((void*)shape->file_ptr,(void*)&m_fileBuf[m_filePos], m_tagEnd-m_filePos);

    shape->getStyles = 1;
    shape->getAlpha = (level == 3);

    ParseShapeData(level == 3, 1);

    addCharacter(shape);
}

void CInputScript::S_DumpImageGuts()
{
#if 0
    U32 lfCount = 0;                
    printf("----- dumping image details -----");
    while (m_filePos < m_tagEnd)
    {
	if ((lfCount % 16) == 0)
	{
	    fprintf(stdout, "\n");
	}
	lfCount += 1;
	fprintf(stdout, "%02x ", GetByte());
    }
    fprintf(stdout, "\n");
#endif
}

void CInputScript::ParseDefineBits()
{
    Bitmap *bitmap;
    U32 tagid = (U32) GetWord();
    int status;

    bitmap = new Bitmap(tagid,1);
    if (bitmap == NULL) {
	outOfMemory = 1;
    	return;
    }

    status = bitmap->buildFromJpegAbbreviatedData(&m_fileBuf[m_filePos]);

    if (status < 0) {
	fprintf(stderr,"Unable to read JPEG data\n");
	delete bitmap;
	return;
    }

    addCharacter(bitmap);
}


void CInputScript::ParseDefineBitsJPEG2()
{
    Bitmap *bitmap;
    U32 tagid = (U32) GetWord();
    int status;

    bitmap = new Bitmap(tagid,2);
    if (bitmap == NULL) {
	outOfMemory = 1;
    	return;
    }

    status = bitmap->buildFromJpegInterchangeData(&m_fileBuf[m_filePos], 0, 0);

    if (status < 0) {
	fprintf(stderr,"Unable to read JPEG data\n");
	delete bitmap;
	return;
    }

    addCharacter(bitmap);
}

void CInputScript::ParseDefineBitsJPEG3()
{
    Bitmap *bitmap;
    U32 tagid = (U32) GetWord();
    int status;
    long offset;

    printf("tagDefineBitsJPEG3 \ttagid %-5u\n", tagid);

    bitmap = new Bitmap(tagid,3);
    if (bitmap == NULL) {
	outOfMemory = 1;
    	return;
    }

    offset = GetDWord();	// Not in the specs !!!!

    status = bitmap->buildFromJpegInterchangeData(&m_fileBuf[m_filePos], 1, offset);
    if (status < 0) {
	fprintf(stderr,"Unable to read JPEG data\n");
	delete bitmap;
	return;
    }

    addCharacter(bitmap);
}


void CInputScript::ParseDefineBitsLossless(int level)
{
    Bitmap *bitmap;
    U32 tagid = (U32) GetWord();
    int status;
    int tableSize;         

    bitmap = new Bitmap(tagid,0);
    if (bitmap == NULL) {
	outOfMemory = 1;
    	return;
    }

    int format = GetByte();
    int width  =  GetWord();
    int height = GetWord();

    tableSize = 0;

    if (format == 3) {
	tableSize = GetByte();
    }

    status = bitmap->buildFromZlibData(&m_fileBuf[m_filePos], width, height, format, tableSize, level == 2);

    if (status < 0) {
	fprintf(stderr,"Unable to read ZLIB data\n");
	delete bitmap;
	return;
    }

    addCharacter(bitmap);
}

void CInputScript::ParseJPEGTables()
{
    Bitmap::readJpegTables(&m_fileBuf[m_filePos]);
}


ButtonRecord * CInputScript::ParseButtonRecord(long getCxform)
{
    U16 state;
    ButtonRecord *br;
    long tagid;
    Matrix matrix;
    long layer;
    Cxform *cxform;

    state = (U16) GetByte();

    if (state == 0) return 0;

    br = new ButtonRecord;
    if (br == NULL) {
	outOfMemory = 1;
    	return 0;
    }

    tagid = GetWord();
    layer = GetWord();
    GetMatrix(&matrix);

    if (br) {
        br->state = (ButtonState) state;
        br->character = getCharacter(tagid);
        br->layer = layer;
        br->cxform = 0;
	br->buttonMatrix = matrix;
    }

    if (getCxform) {
	cxform = new Cxform;
	GetCxform(cxform, true);
	if (br) {
		br->cxform = cxform;
		if (cxform == NULL) {
			outOfMemory = 1;
		}
	}
    }

    return br;
}

ActionRecord * CInputScript::ParseActionRecord()
{
    U8 action;
    U16 length = 0;
    char *url, *target, *label;
    long frameIndex, skipCount;
    ActionRecord *ar;

    action = GetByte();
    if (action == 0) return 0;

    ar = new ActionRecord;
    if (ar == NULL) {
    	outOfMemory = 1;
	return 0;
    }

    ar->action = (Action)action;

    if (action & 0x80) {
	length = GetWord();
    }

    switch (action) {
    case ActionGotoFrame:
	frameIndex = GetWord();
	if (ar) {
		ar->frameIndex = frameIndex;
	}
	break;
    case ActionGetURL:
	url = GetString();
	target = GetString();
	if (ar) {
		ar->url = strdup(url);
		ar->target = strdup(target);
	}
	break;
    case ActionWaitForFrame:
	frameIndex = GetWord();
	skipCount = GetByte();
	if (ar) {
		ar->frameIndex = frameIndex;
		ar->skipCount = skipCount;
	}
	break;
    case ActionSetTarget:
	target = strdup(GetString());
	if (ar) {
		ar->target = target;
	}
	break;
    case ActionGoToLabel:
	label = GetString();
	if (ar) {
		ar->frameLabel = strdup(label);
	}
	break;
    default:
	while (length--) {
		GetByte();
	}
    	break;
    }

    return ar;
}

void CInputScript::ParseDefineButton()
{
    Button		*button;
    ButtonRecord	*buttonRecord;
    ActionRecord	*actionRecord;

    U32 tagid = (U32) GetWord();

    button = new Button(tagid);
    if (button == NULL) {
	outOfMemory = 1;
    	return;
    }

    do {
	buttonRecord = ParseButtonRecord();
	if (buttonRecord) {
	    button->addButtonRecord( buttonRecord );
	}
	if (outOfMemory) {
		return;
	}
    } while (buttonRecord);

    do {
	actionRecord = ParseActionRecord();
	if (actionRecord) {
	    button->addActionRecord( actionRecord );
	}
	if (outOfMemory) {
		return;
	}
    } while (actionRecord);

    addCharacter(button);
}


void CInputScript::ParseDefineButton2()
{
    Button		*button;
    ButtonRecord	*buttonRecord;
    ActionRecord	*actionRecord;
    U16		 transition;
    U16		 offset;
    U8		 menu;

    U32 tagid = (U32) GetWord();

    button = new Button(tagid);

    if (button == NULL) {
    	outOfMemory = 1;
	return;
    }

    menu = GetByte();

    offset = GetWord();

    do {
	buttonRecord = ParseButtonRecord(true);
	if (buttonRecord) {
	    button->addButtonRecord( buttonRecord );
	}
	if (outOfMemory) {
		return;
	}
    } while (buttonRecord);

    while (offset) {
	offset = GetWord();

	transition = GetWord();

	do {
	    actionRecord = ParseActionRecord();
	    if (actionRecord) {
		button->addActionRecord( actionRecord );
	    }
	    if (outOfMemory) {
		    return;
	    }
	} while (actionRecord);

	button->addCondition( transition );
    }

    addCharacter(button);
}


void CInputScript::ParseDefineFont()
{
    SwfFont	*font = 0;
    U32 tagid = (U32) GetWord();
    long	 start;
    long	 nb,n;
    long	 offset;
    long	*offsetTable = 0;
    Shape	*shapes = 0;

    font = new SwfFont(tagid);
    if (font == NULL) {
	outOfMemory = 1;
    	return;
    }
    start = m_filePos;

    offset = GetWord();
    nb = offset/2;
    offsetTable = new long[nb];
    if (offsetTable == NULL) {
	goto memory_error;
    }
    offsetTable[0] = offset;

    for(n=1; n<nb; n++)
    {
	offsetTable[n] = GetWord();
    }

    shapes = new Shape[nb];
    if (shapes == NULL) {
	goto memory_error;
    }

    for(n=0; n<nb; n++)
    {
	long here;

	m_filePos = offsetTable[n]+start;

	here = m_filePos;
	ParseShapeData(0, 0);

	// Keep data for later parsing
	shapes[n].file_ptr = (unsigned char*)malloc(m_filePos-here);
	if (shapes[n].file_ptr == NULL) {
		goto memory_error;
	}
	memcpy((void*)shapes[n].file_ptr,(void*)&m_fileBuf[here],m_filePos-here);
    }

    font->setFontShapeTable(shapes,nb);

    delete[] offsetTable;

    addCharacter(font);
    return;

memory_error:
    outOfMemory = 1;
    if (offsetTable) delete offsetTable;
    if (font) delete font;
    if (shapes) delete[] shapes;
}


void CInputScript::ParseDefineMorphShape()
{
    U32 tagid = (U32) GetWord();

    tagid = tagid;
    printf("tagDefineMorphShape \ttagid %-5u\n", tagid);
}

void CInputScript::ParseDefineFontInfo()
{
    SwfFont	*font;
    U32 tagid = (U32) GetWord();
    long	 nameLen;
    char	*name;
    long	 n,nb;
    FontFlags    flags;
    long	*lut;

    font = (SwfFont *)getCharacter(tagid);

    if (font == NULL) {
    	outOfMemory = 1;
	return;
    }

    nameLen = GetByte();
    name = new char[nameLen+1];
    if (name == NULL) {
    	outOfMemory = 1;
	return;
    }
    for(n=0; n < nameLen; n++)
    {
	name[n] = GetByte();
    }
    name[n]=0;

    font->setFontName(name);

    delete name;

    flags = (FontFlags)GetByte();

    font->setFontFlags(flags);

    nb = font->getNbGlyphs();

    lut = new long[nb];
    if (lut == NULL) {
    	outOfMemory = 1;
    	delete font;
	return;
    }

    for(n=0; n < nb; n++)
    {
	if (flags & fontWideCodes) {
	    lut[n] = GetWord();
	} else {
	    lut[n] = GetByte();
	}
    }

    font->setFontLookUpTable(lut);
}





void CInputScript::ParseDefineFont2()
{
    int n;
    U32 tagid = (U32) GetWord();
    FontFlags	 flags;
    char		*name;
    long		 nameLen;
    long		 fontGlyphCount;
    long		*offsetTable = NULL;
    Shape       	*shapes = NULL;
    long        	 start;
    SwfFont     	*font;
    long 		*lut = NULL;

    font = new SwfFont(tagid);
    if (font == NULL) {
    	goto memory_error;
    }

    flags = (FontFlags)GetWord();

    font->setFontFlags(flags);

    nameLen = GetByte();
    name = new char[nameLen+1];
    if (name == NULL) {
    	goto memory_error;
    }
    for(n=0; n < nameLen; n++)
    {
	name[n] = GetByte();
    }
    name[n]=0;

    font->setFontName(name);

    delete name;

    fontGlyphCount = GetWord();

    start = m_filePos;

    offsetTable = new long[fontGlyphCount];
    if (offsetTable == NULL) {
    	goto memory_error;
    }
    for (n=0; n<fontGlyphCount; n++) {
	if (flags & 8) {
	    offsetTable[n] = GetDWord();
	} else {
	    offsetTable[n] = GetWord();
	}
    }

    shapes = new Shape[fontGlyphCount];
    if (shapes == NULL) {
    	goto memory_error;
    }

    for (n=0; n<fontGlyphCount; n++) {
	long here;

	m_filePos = offsetTable[n]+start;

	here = m_filePos;
	ParseShapeData(0, 0);

	// Keep data for later parsing
	shapes[n].file_ptr = (unsigned char*)malloc(m_filePos-here);
	if (shapes[n].file_ptr == NULL) {
		goto memory_error;
	}
	memcpy((void*)shapes[n].file_ptr,(void*)&m_fileBuf[here],m_filePos-here);
    }

    font->setFontShapeTable(shapes,fontGlyphCount);

    lut = new long[fontGlyphCount];
    if (lut == NULL) {
    	goto memory_error;
    }

    for(n=0; n < fontGlyphCount; n++)
    {
	if (flags & 4) {
	    lut[n] = GetWord();
	} else {
	    lut[n] = GetByte();
	}