Mac/Demo/imgbrowse/mac_image.py

   1 """mac_image - Helper routines (hacks) for images"""
   2 import imgformat
   3 import Qd
   4 import time
   5 import struct
   6 import MacOS
   7
   8 _fmt_to_mac = {
   9         imgformat.macrgb16 : (16, 16, 3, 5),
  10 }
  11
  12 def mkpixmap(w, h, fmt, data):
  13         """kludge a pixmap together"""
  14         fmtinfo = _fmt_to_mac[fmt]
  15
  16         rv = struct.pack("lHhhhhhhlllhhhhlll",
  17                 id(data)+MacOS.string_id_to_buffer, # HACK HACK!!
  18                 w*2 + 0x8000,
  19                 0, 0, h, w,
  20                 0,
  21                 0, 0, # XXXX?
  22                 72<<16, 72<<16,
  23                 fmtinfo[0], fmtinfo[1],
  24                 fmtinfo[2], fmtinfo[3],
  25                 0, 0, 0)
  26 ##      print 'Our pixmap, size %d:'%len(rv)
  27 ##      dumppixmap(rv)
  28         return Qd.RawBitMap(rv)
  29
  30 def dumppixmap(data):
  31         baseAddr, \
  32                 rowBytes, \
  33                 t, l, b, r, \
  34                 pmVersion, \
  35                 packType, packSize, \
  36                 hRes, vRes, \
  37                 pixelType, pixelSize, \
  38                 cmpCount, cmpSize, \
  39                 planeBytes, pmTable, pmReserved \
  40                         = struct.unpack("lhhhhhhhlllhhhhlll", data)
  41         print 'Base:       0x%x'%baseAddr
  42         print 'rowBytes:   %d (0x%x)'%(rowBytes&0x3fff, rowBytes)
  43         print 'rect:       %d, %d, %d, %d'%(t, l, b, r)
  44         print 'pmVersion:  0x%x'%pmVersion
  45         print 'packing:    %d %d'%(packType, packSize)
  46         print 'resolution: %f x %f'%(float(hRes)/0x10000, float(vRes)/0x10000)
  47         print 'pixeltype:  %d, size %d'%(pixelType, pixelSize)
  48         print 'components: %d, size %d'%(cmpCount, cmpSize)
  49         print 'planeBytes: %d (0x%x)'%(planeBytes, planeBytes)
  50         print 'pmTable:    0x%x'%pmTable
  51         print 'pmReserved: 0x%x'%pmReserved
  52         for i in range(0, len(data), 16):
  53                 for j in range(16):
  54                         if i + j < len(data):
  55                                 print '%02.2x'%ord(data[i+j]),
  56                 print