tools/winedump/emf.c

   1 /*
   2  *  Dump an Enhanced Meta File
   3  *
   4  *  Copyright 2005 Mike McCormack
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23 #include "winedump.h"
  24
  25 #include <stdio.h>
  26 #ifdef HAVE_UNISTD_H
  27 # include <unistd.h>
  28 #endif
  29 #ifdef HAVE_SYS_TYPES_H
  30 # include <sys/types.h>
  31 #endif
  32 #include <fcntl.h>
  33 #include <stdarg.h>
  34
  35 #include "windef.h"
  36 #include "winbase.h"
  37 #include "wingdi.h"
  38
  39 static unsigned int read_int(const unsigned char *buffer)
  40 {
  41     return buffer[0]
  42      + (buffer[1]<<8)
  43      + (buffer[2]<<16)
  44      + (buffer[3]<<24);
  45 }
  46
  47 #define EMRCASE(x) case x: printf("%-20s %08x\n", #x, length); break
  48
  49 static unsigned offset = 0;
  50
  51 static int dump_emfrecord(void)
  52 {
  53     const unsigned char*        ptr;
  54     unsigned int type, length, i;
  55
  56     ptr = PRD(offset, 8);
  57     if (!ptr) return -1;
  58
  59     type = read_int(ptr);
  60     length = read_int(ptr + 4);
  61
  62     switch(type)
  63     {
  64     EMRCASE(EMR_HEADER);
  65     EMRCASE(EMR_POLYGON);
  66     EMRCASE(EMR_POLYLINE);
  67     EMRCASE(EMR_SETWINDOWEXTEX);
  68     EMRCASE(EMR_SETWINDOWORGEX);
  69     EMRCASE(EMR_SETVIEWPORTEXTEX);
  70     EMRCASE(EMR_EOF);
  71     EMRCASE(EMR_SETMAPMODE);
  72     EMRCASE(EMR_SETPOLYFILLMODE);
  73     EMRCASE(EMR_SETROP2);
  74     EMRCASE(EMR_SCALEWINDOWEXTEX);
  75     EMRCASE(EMR_SAVEDC);
  76     EMRCASE(EMR_SELECTOBJECT);
  77     EMRCASE(EMR_CREATEPEN);
  78     EMRCASE(EMR_CREATEBRUSHINDIRECT);
  79     EMRCASE(EMR_DELETEOBJECT);
  80     EMRCASE(EMR_RECTANGLE);
  81     EMRCASE(EMR_SELECTPALETTE);
  82     EMRCASE(EMR_GDICOMMENT);
  83     EMRCASE(EMR_EXTSELECTCLIPRGN);
  84     EMRCASE(EMR_EXTCREATEFONTINDIRECTW);
  85     EMRCASE(EMR_EXTTEXTOUTW);
  86     EMRCASE(EMR_POLYGON16);
  87     EMRCASE(EMR_POLYLINE16);
  88
  89     default:
  90         printf("%08x %08x\n",type,length);
  91         break;
  92     }
  93
  94     if ( (length < 8) || (length % 4) )
  95         return -1;
  96
  97     length -= 8;
  98
  99     offset += 8;
 100
 101     for(i=0; i<length; i+=4)
 102     {
 103          if (i%16 == 0)
 104              printf("   ");
 105          if (!(ptr = PRD(offset, 4))) return -1;
 106          offset += 4;
 107          printf("%08x ", read_int(ptr));
 108          if ( (i % 16 == 12) || (i + 4 == length))
 109              printf("\n");
 110     }
 111
 112     return 0;
 113 }
 114
 115 enum FileSig get_kind_emf(void)
 116 {
 117     const ENHMETAHEADER*        hdr;
 118
 119     hdr = PRD(0, sizeof(*hdr));
 120     if (hdr && hdr->iType == EMR_HEADER && hdr->dSignature == ENHMETA_SIGNATURE)
 121         return SIG_EMF;
 122     return SIG_UNKNOWN;
 123 }
 124
 125 void emf_dump(void)
 126 {
 127     offset = 0;
 128     while (!dump_emfrecord());
 129 }