Large projects
----------------

 - Add scripting support (lua?).
 - Tiler and Forge are almost the same, try to refactor them.

 Engine classes
----------------

Image:
  - Handle pitch in SDL codec (and all others, actually)
  - port libpipi files:
     · accessors.cpp
     · pipi-stubs.h
     · render/noise.cpp
     · render/screen.cpp
     · tiles.cpp
     · pipi-internals.h
     · pipi-template.h
     · paint/rectangle.cpp
     · paint/line.cpp
     · paint/floodfill.cpp
     · paint/bezier.cpp
     · paint/tile.cpp
     · pipi-types.h
     · stock.cpp
     · context.cpp
     · pipi.h
     · dither.cpp
     · colorstring.cpp
     · codec/coreimage.cpp
     · codec/coreimage.h
     · codec/oric.cpp
     · codec/jpeg.cpp
     · resample/bresenham.cpp
     · resample/bicubic.cpp
     · quantize/reduce.cpp
     · analysis/histogram.cpp
     · analysis/measure.cpp
     · crop.cpp
     · pipi.cpp
     · codec.cpp
     · dither/ediff.cpp
     · dither/ostromoukhov.cpp
     · dither/random.cpp
     · dither/ordered.cpp
     · dither/dbs.cpp
     · sequence.cpp
     · filter/convolution.cpp
     · filter/wave.cpp
     · filter/dilate.cpp
     · filter/color.cpp
     · filter/blur.cpp
     · filter/yuv.cpp
     · filter/autocontrast.cpp
     · filter/median.cpp
     · filter/rotate.cpp
     · filter/transform.cpp
     · filter/sharpen.cpp
     · combine/rgb.cpp
     · combine/blit.cpp
     · combine/minmax.cpp
     · combine/subadd.cpp
     · combine/merge.cpp
     · combine/mulscreen.cpp
     · pixels.cpp