Graphics/font/platform backends with common interfaces?

[rumbu via Digitalmars-d-learn]

On Wednesday, 23 December 2015 at 19:22:01 UTC, Taylor Hillegeist 
wrote:
> So I have seen alot of projects that need the same sort of 
> stuff.
>
> graphics libraries
> gui libraries
> game libraries
> ploting libaries
>
> they would all benefit from a backend solution with a common 
> interface for
>
> color
> fonts
> drawing pen_style aliasing etc.
>
> but each one i look at seems to have a built up solution with 
> various degrees of integration with things like freetype gdi 
> cairo sdl glew opengl.
>
> Shouldn't there be like a common (interface/abstract class) 
> that these back-ends can fulfill? maybe I am unaware of how 
> these things are done. And perhaps there are performance 
> reasons that many of these are baked in.
>
> perhaps it should be like:
>
> standard color implementation.
> font interface that converts glyphs into drawing strokes.
> and a standard set of drawing instructions with transforms.
>
> //probably a grotesque simplification
>
> interface font_do{
>   glyphstrokes getstrokes(string characterstoget);
> }
>
> interface draw_do{
>   drawpixel(double x,double y);
>   drawline(double x,double y);
>   drawglyph(glypstrokes g);
>   getpostdrawnsize(glypstroks g)
>   ... other things
> }

It was an initiative, but it looks abandoned now (Aurora 
Graphics):
Thread: 
http://forum.dlang.org/thread/op.w9w0efr1707hn8@invictus.hra.local
Source Code: https://github.com/auroragraphics/