benchmarking/rendering/webkit/render_text.py

   1 #!/usr/bin/env python
   2
   3 #
   4 # Copyright (C) 2008 Openmoko Inc.
   5 #
   6 # Execute the drawing commands.... put that onto a canvas
   7 import cairo, os
   8
   9 #
  10 # Load everything into ram...
  11 max_height = 0
  12 glyph_data = []
  13
  14 input = open("render_text.blib")
  15 for line in input:
  16
  17     # We do not need these markers
  18     if line.startswith("0,0,0,0"):
  19         continue
  20
  21     split = line.strip().split(',')
  22     glyph = { 'x'     : int(split[0]),
  23               'y'     : int(split[1]),
  24               'font'  : split[2],
  25               'glyph' : split[3] }
  26
  27     glyph_data.append(glyph)
  28
  29     if max_height < glyph['y']:
  30         max_height = glyph['y']
  31
  32
  33 # Assume the highest font has 60 pixels
  34 max_height = max_height + 60
  35
  36
  37 destination_surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 240, max_height)
  38 context = cairo.Context(destination_surface)
  39 context.rectangle(0, 0, 640, max_height)
  40 context.fill()
  41
  42 for glyph in glyph_data:
  43     base_path = os.path.join("fonts", glyph['font'], glyph['glyph'])
  44
  45     try:
  46         path = os.path.join(base_path, 'bitmap.png')
  47         glyph_image = cairo.ImageSurface.create_from_png(path)
  48     except IOError, e:
  49         print "Issue with", path, glyph, e
  50         continue
  51
  52     x = glyph['x'] - 7#+ int(open(os.path.join(base_path, 'bitmap_left_bearing')).readline().strip())
  53     y = glyph['y'] #- int(open(os.path.join(base_path, 'bitmap_top_bearing')).readline().strip())
  54
  55     context.translate(x, y)
  56     context.set_source_surface(glyph_image)
  57     context.paint()
  58     context.translate(-x, -y)
  59
  60 destination_surface.write_to_png("rendered_result.png")