/*--------------------------------------------------------------------------------*
* Reads SWF to memory
*--------------------------------------------------------------------------------*/
int swf_ReadSWF2(reader_t* reader, SWF* swf)
{
char b[32];
int len;
int tc; /* tag counter */
TAG* t;
TAG t1;
reader_t zreader;
if(NULL == swf) return -1;
memset(swf, 0x00, sizeof(SWF));
len = reader->read(reader, b, 8);
if(len < 8) return -1;
if(b[0] != 'F' && b[0] != 'C') return -1;
if(b[1] != 'W') return -1;
if(b[2] != 'S') return -1;
swf->fileVersion = b[3];
swf->compressed = (b[0]=='C') ? 1 : 0;
swf->fileSize = GET32(&b[4]);
if(swf->compressed)
{
/* at first, we do not care about SWC */
return -1;
}
swf->compressed = 0;
reader_GetRect(reader, &swf->movieSize);
reader->read(reader, &swf->frameRate, 2);
swf->frameRate = LE_16_TO_NATIVE(swf->frameRate);
reader->read(reader, &swf->frameCount, 2);
swf->frameCount = LE_16_TO_NATIVE(swf->frameCount);
/* read tags and connect to list */
t1.next = 0;
t = &t1;
tc = 0;
while (t)
{
t = swf_ReadTag(reader, t);
if(NULL == t) break;
tc++;
if(t->id == ST_FILEATTRIBUTES)
{
swf->fileAttributes = swf_GetU32(t);
swf_ResetReadBits(t);
}
}
/*
printf("swf->frameCount:%d <--> tag count:%d\n", swf->frameCount, tc);
*/
swf->firstTag = t1.next;
if(t1.next)
t1.next->prev = NULL;
return reader->pos;
}
int swf_FontExtract_DefineFont2(int id, SWFFONT *font, TAG *tag)
{
int t, glyphcount;
int maxcode;
int fid;
uint32_t offset_start;
uint32_t *offset;
uint8_t flags1, /*langcode, */namelen;
swf_SetTagPos(tag, 0);
font->version = tag->id == ST_DEFINEFONT3 ? 3 : 2;
fid = swf_GetU16(tag);
if (id && id != fid)
return id;
font->id = fid;
flags1 = swf_GetU8(tag);
/*langcode = */swf_GetU8(tag); //reserved flags
if (flags1 & 1)
font->style |= FONT_STYLE_BOLD;
if (flags1 & 2)
font->style |= FONT_STYLE_ITALIC;
if (flags1 & 16)
font->encoding |= FONT_ENCODING_ANSI;
if (flags1 & 32)
font->encoding |= FONT_ENCODING_UNICODE;
if (flags1 & 64)
font->encoding |= FONT_ENCODING_SHIFTJIS;
namelen = swf_GetU8(tag);
font->name = (uint8_t *) malloc(namelen + 1);
font->name[namelen] = 0;
swf_GetBlock(tag, font->name, namelen);
glyphcount = swf_GetU16(tag);
font->numchars = glyphcount;
font->glyph = (SWFGLYPH *) calloc(1, sizeof(SWFGLYPH) * glyphcount);
font->glyph2ascii = (uint16_t *) calloc(1, sizeof(uint16_t) * glyphcount);
offset = (uint32_t*)calloc(1, sizeof(uint32_t)*(glyphcount + 1));
offset_start = tag->pos;
if (flags1 & 8)
{ // wide offsets
for (t = 0; t < glyphcount; t++)
offset[t] = swf_GetU32(tag); //offset[t]
if (glyphcount) /* this _if_ is not in the specs */
offset[glyphcount] = swf_GetU32(tag); // fontcodeoffset
else
offset[glyphcount] = tag->pos;
} else
{
for (t = 0; t < glyphcount; t++)
offset[t] = swf_GetU16(tag); //offset[t]
if (glyphcount) /* this _if_ is not in the specs */
offset[glyphcount] = swf_GetU16(tag); // fontcodeoffset
else
offset[glyphcount] = tag->pos;
}
for (t = 0; t < glyphcount; t++)
{
swf_SetTagPos(tag, offset[t] + offset_start);
swf_GetSimpleShape(tag, &(font->glyph[t].shape));
}
if (glyphcount)
swf_SetTagPos(tag, offset[glyphcount] + offset_start);
free(offset);
maxcode = 0;
for (t = 0; t < glyphcount; t++)
{
int code;
if (flags1 & 4) // wide codes (always on for definefont3)
code = swf_GetU16(tag);
else
code = swf_GetU8(tag);
font->glyph2ascii[t] = code;
if (code > maxcode)
maxcode = code;
}
maxcode++;
if (maxcode < 256)
maxcode = 256;
font->maxascii = maxcode;
font->ascii2glyph = (int *) malloc(sizeof(int) * maxcode);
memset(font->ascii2glyph, -1, sizeof(int) * maxcode);
for (t = 0; t < glyphcount; t++)
{
font->ascii2glyph[font->glyph2ascii[t]] = t;
}
if (flags1 & 128)
{ // has layout
uint16_t kerningcount;
font->layout = (SWFLAYOUT *) malloc(sizeof(SWFLAYOUT));
font->layout->ascent = swf_GetU16(tag);
font->layout->descent = swf_GetU16(tag);
font->layout->leading = swf_GetU16(tag);
for (t = 0; t < glyphcount; t++)
{
int16_t advance = swf_GetS16(tag);
font->glyph[t].advance = advance;
}
font->layout->bounds = (SRECT*)malloc(glyphcount * sizeof(SRECT));
for (t = 0; t < glyphcount; t++)
{
swf_ResetReadBits(tag);
swf_GetRect(tag, &font->layout->bounds[t]);
SRECT b = font->layout->bounds[t];
if ((b.xmin | b.xmax | b.ymin | b.ymax) == 0)
{
// recalculate bounding box
SHAPE2 *shape2 = swf_ShapeToShape2(font->glyph[t].shape);
font->layout->bounds[t] = swf_GetShapeBoundingBox(shape2);
swf_Shape2Free(shape2); free(shape2);
}
}
kerningcount = swf_GetU16(tag);
font->layout->kerningcount = kerningcount;
font->layout->kerning = (SWFKERNING *) malloc(sizeof(SWFKERNING) * kerningcount);
if (kerningcount)
{
font->layout->kerning = (SWFKERNING*)malloc(sizeof(*font->layout->kerning) * kerningcount);
for (t = 0; t < kerningcount; t++)
{
if (flags1 & 4)
{ // wide codes
font->layout->kerning[t].char1 = swf_GetU16(tag);
font->layout->kerning[t].char2 = swf_GetU16(tag);
} else
{
font->layout->kerning[t].char1 = swf_GetU8(tag);
font->layout->kerning[t].char2 = swf_GetU8(tag);
}
font->layout->kerning[t].adjustment = swf_GetS16(tag);
}
}
}
return font->id;
}
