ActionTAG* swf_ActionGet(TAG*tag) { U8 op = 1; int length; ActionTAG tmp; ActionTAG*action = &tmp; U8*data; while(op) { action->next = (ActionTAG*)rfx_calloc(sizeof(ActionTAG)); action->next->prev = action; action->next->next = 0; action->next->parent = tmp.next; action = action->next; op = swf_GetU8(tag); if(op<0x80) length = 0; else length = swf_GetU16(tag); if(length) { data = (U8*)rfx_alloc(length); swf_GetBlock(tag, data, length); } else { data = 0; } action->op = op; action->len = length; action->data = data; } return tmp.next; }
int swf_FontExtract_DefineFontInfo(int id, SWFFONT *f, TAG *t) { uint16_t fid; uint16_t maxcode; uint8_t flags; swf_SetTagPos(t, 0); fid = swf_GetU16(t); if (fid == id) { uint8_t l = swf_GetU8(t); int i; if (f->version > 1) { /* Especially with Flash MX, DefineFont2 may have FontInfo fields, too. However, they only add little information to what's already inside the DefineFont2 tag */ return id; } if (f->name) free(f->name); f->name = (uint8_t *) malloc(l + 1); swf_GetBlock(t, f->name, l); f->name[l] = 0; flags = swf_GetU8(t); if (flags & 2) f->style |= FONT_STYLE_BOLD; if (flags & 4) f->style |= FONT_STYLE_ITALIC; if (flags & 8) f->encoding |= FONT_ENCODING_ANSI; if (flags & 16) f->encoding |= FONT_ENCODING_SHIFTJIS; if (flags & 32) f->encoding |= FONT_ENCODING_UNICODE; if (t->id == ST_DEFINEFONTINFO2) { f->language = swf_GetU8(t); } f->glyph2ascii = (uint16_t *) malloc(sizeof(uint16_t) * f->numchars); maxcode = 0; for (i = 0; i < f->numchars; i++) { f->glyph2ascii[i] = ((flags & FF_WIDECODES) ? swf_GetU16(t) : swf_GetU8(t)); if (f->glyph2ascii[i] > maxcode) maxcode = f->glyph2ascii[i]; } maxcode++; if (maxcode < 256) maxcode = 256; f->maxascii = maxcode; f->ascii2glyph = (int *)malloc(sizeof(int) * maxcode); memset(f->ascii2glyph, -1, sizeof(int) * maxcode); for (i = 0; i < f->numchars; i++) f->ascii2glyph[f->glyph2ascii[i]] = i; } return id; }
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; }