new examples: dumpfont and text

[swftools.git] / lib / example / dumpfont.c

diff --git a/lib/example/dumpfont.c b/lib/example/dumpfont.c
new file mode 100644 (file)
index 0000000..01ffa9b
--- /dev/null
+++ b/lib/example/dumpfont.c
@@ -0,0 +1,138 @@
+/* dumpfont.c
+
+   Example for font handling
+
+   This tool dumps font information into C files
+   which can be included to rfxswf applications.
+   This is an easy way for developers to use
+   fonts in applications without dealing with
+   external files.
+
+   Usage: ./dumpfont filename.swf > myfont.c
+
+   Limits: does not parse ST_DEFINEFONT2 
+   
+   Part of the swftools package.
+
+   Copyright (c) 2000, 2001 Rainer Böhme <rfxswf@reflex-studio.de>
+ 
+   This file is distributed under the GPL, see file COPYING for details 
+
+*/
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include "../rfxswf.h"
+
+#define PRINTABLE(a) ((a>='A')&&(a<='Z'))||((a>='a')&&(a<='z'))||((a>='0')&&(a<='9'))
+
+SWF swf;
+
+void DumpFont(SWFFONT * f,char * name)
+{ int gpos[MAX_CHAR_PER_FONT];
+  int n,i;
+
+  // Glyph Shapes Data
+
+  n = 0;
+  printf("U8 Glyphs_%s[] = {\n\t  ",name);
+  memset(&gpos,0x00,sizeof(gpos));
+  
+  for (i=0;i<MAX_CHAR_PER_FONT;i++)
+    if (f->glyph[i].shape)
+    { SHAPE * s = f->glyph[i].shape;
+      int j,l = (s->bitlen+7)/8;
+      gpos[i] = n;
+
+      for (j=0;j<l;j++)
+      { printf("0x%02x, ",s->data[j]);
+        if ((n&7)==7) printf("\n\t  ");
+        n++;
+      }
+    }
+  printf("0x00 };\n");
+  
+  // SWFFONT function
+
+  printf("\nSWFFONT * Font_%s(U16 id)\n",name);
+  printf("{ SWFFONT * f;\n  int i;\n\n");
+  printf("  if (!(f=malloc(sizeof(SWFFONT)))) return NULL;\n");
+  printf("  memset(f,0x00,sizeof(SWFFONT));\n");
+  printf("  f->id       = id;\n");
+  printf("  f->name     = strdup(\"%s\");\n",f->name);
+  printf("  f->flags    = 0x%02x;\n\n",f->flags);
+
+  for (i=0;i<MAX_CHAR_PER_FONT;i++)
+    if (f->glyph[i].shape)
+    { printf("  addGlyph(f,%3i, 0x%02x,%4i,%3i, &Glyphs_%s[0x%04x],%4i); // %c\n",
+             i, f->codes[i], f->glyph[i].advance, f->glyph[i].gid, name, gpos[i],
+             f->glyph[i].shape->bitlen,(i!='\\')?i:0x20);
+    }
+
+  printf("  return f;\n}\n\n");
+}
+
+void DumpGlobal(char * funcname)
+{ printf("\nvoid %s(SWFFONT * f,int i,U16 code,U16 advance,U16 gid,U8 * data,U32 bitlen)\n",funcname);
+  printf("{ SHAPE * s;\n  U32 l = (bitlen+7)/8;\n\n");
+  printf("  if (FAILED(swf_ShapeNew(&s))) return;\n");
+  printf("  s->data = malloc(l);\n");
+  printf("  if (!s->data) { swf_ShapeFree(s); return; }\n\n");
+  printf("  f->codes[i]         = code;\n");
+  printf("  f->glyph[i].advance = advance;\n");
+  printf("  f->glyph[i].gid     = gid;\n");
+  printf("  f->glyph[i].shape   = s;\n");
+  printf("  s->bitlen           = bitlen;\n");
+  printf("  s->bits.fill        = 1;\n");
+  printf("  memcpy(s->data,data,l);\n}\n\n");
+}
+
+
+void fontcallback(U16 id,U8 * name)
+{ SWFFONT * font;
+
+  int f;
+  char s[500],*ss;
+  
+  swf_FontExtract(&swf,id,&font);
+  sprintf(s,"%s%s%s",name,swf_FontIsBold(font)?"_bold":"",swf_FontIsItalic(font)?"_italic":"");
+  
+  ss = s;
+  while(ss[0])
+  { if ((*ss)==0x20) (*ss)='_';
+    ss++;
+  }
+
+  DumpFont(font,s);
+  
+  swf_FontFree(font);
+}
+
+int main(int argc,char ** argv)
+{ int f;
+
+  if (argc>1)
+  { f = open(argv[1],O_RDONLY);
+    if (f>=0)
+    { if FAILED(swf_ReadSWF(f,&swf))
+      { fprintf(stderr,"%s is not a valid SWF file or contains errors.\n",argv[1]);
+        close(f);
+      }
+      else
+      { char fn[200];
+        close(f);
+        sprintf(fn,"fn%04x",getpid()); // avoid name conflicts @ using multiple fonts
+        printf("#define addGlyph %s\n",fn);
+        DumpGlobal(fn);
+        swf_FontEnumerate(&swf,&fontcallback);
+        swf_FreeTags(&swf);
+        printf("#undef addGlyph\n");
+      }
+    } else fprintf(stderr,"File not found: %s\n",argv[1]);
+  }
+  else fprintf(stderr,"\nreflex SWF Font Dump Utility\n(w) 2000 by Rainer Boehme <rb@reflex-studio.de>\n\nUsage: dumpfont filename.swf\n");
+  
+  return 0;
+}
+