/Mac/Demo/imgbrowse/mac_image.py
http://unladen-swallow.googlecode.com/ · Python · 55 lines · 52 code · 2 blank · 1 comment · 0 complexity · 129b23625d35f6b2e567a074e744c861 MD5 · raw file
- """mac_image - Helper routines (hacks) for images"""
- import imgformat
- from Carbon import Qd
- import struct
- import MacOS
- _fmt_to_mac = {
- imgformat.macrgb16 : (16, 16, 3, 5),
- }
- def mkpixmap(w, h, fmt, data):
- """kludge a pixmap together"""
- fmtinfo = _fmt_to_mac[fmt]
- rv = struct.pack("lHhhhhhhlllhhhhlll",
- id(data)+MacOS.string_id_to_buffer, # HACK HACK!!
- w*2 + 0x8000,
- 0, 0, h, w,
- 0,
- 0, 0, # XXXX?
- 72<<16, 72<<16,
- fmtinfo[0], fmtinfo[1],
- fmtinfo[2], fmtinfo[3],
- 0, 0, 0)
- ## print 'Our pixmap, size %d:'%len(rv)
- ## dumppixmap(rv)
- return Qd.RawBitMap(rv)
- def dumppixmap(data):
- baseAddr, \
- rowBytes, \
- t, l, b, r, \
- pmVersion, \
- packType, packSize, \
- hRes, vRes, \
- pixelType, pixelSize, \
- cmpCount, cmpSize, \
- planeBytes, pmTable, pmReserved \
- = struct.unpack("lhhhhhhhlllhhhhlll", data)
- print 'Base: 0x%x'%baseAddr
- print 'rowBytes: %d (0x%x)'%(rowBytes&0x3fff, rowBytes)
- print 'rect: %d, %d, %d, %d'%(t, l, b, r)
- print 'pmVersion: 0x%x'%pmVersion
- print 'packing: %d %d'%(packType, packSize)
- print 'resolution: %f x %f'%(float(hRes)/0x10000, float(vRes)/0x10000)
- print 'pixeltype: %d, size %d'%(pixelType, pixelSize)
- print 'components: %d, size %d'%(cmpCount, cmpSize)
- print 'planeBytes: %d (0x%x)'%(planeBytes, planeBytes)
- print 'pmTable: 0x%x'%pmTable
- print 'pmReserved: 0x%x'%pmReserved
- for i in range(0, len(data), 16):
- for j in range(16):
- if i + j < len(data):
- print '%02.2x'%ord(data[i+j]),
- print