Also use map to generate spans.
This should simplify some filters code, making things work,
albeit inefficiently. At least they should work.
Fix doc too.
Since Evas still relies entirely on Image_Entry and Evas_GL_Image,
we will need an engine-specific wrapper object creating a Buffer
around an existing cached image.
Currently only SW support is implemented. GL will be more fun to
do (with glReadPixels and whatnot).
The original plan was to have two different surfaces for GL and SW,
but this is probably not going to happen anytime soon. So, move
the implementation back to lib/ector. This avoid a file duplication.
Ector Surface now inherits from Ector Buffer, and the current
two renderers (SW and Cairo SW) use Ector.Software.Buffer
implementations for pixel surfaces.
Basic pixel handling is merged and will allow easy extension
(color conversion, etc...).
Buffer classes are Mixins to be fully implemented by the final
class, such as: Ector.Software.Buffer, Ector.Software.Surface
or Ector.Cairo.Surface.
This is a large ugly commit. Sorry.
The code is quite a mess right now.
Jean-Philippe Andre