* Added missing forward declarations.
* Added getters and setters to ShapeRendererOptions class.
* Cube primitive is indexed, modified the mesh creation accordingly. It
now uses MeshTools, link the library to DebugTools.
* Simplified resource handling so it's now handled in one place. It
still needs to be thought out better.
The library uses FreeType for glyph pre-rendering and basic glyph
geometry and HarfBuzz for text layouting (i.e. ligatures, kerning, ...).
Currently all used glyphs must be prerendered into texture atlas, other
glyphs are simply not rendered (although the layouting code handles them
like if they are there).
Text rendering supports UTF-8, although glyph pre-rendering is currently
ASCII only, as I couldn't find any working implementation of Unicode
STL function in recent GCC versions. Will be fixed later.
* Calling *Mesh::draw() with parameter to start on arbitrary vertex
index might give users more freedom than they want to have (e.g.
lines rendered where gaps should be, broken triangle strips...).
* Single-precision floats have meaningful precision of ~6 decimal
places, everything after that would be random garbage anyway, so we
don't need anything "more precise" for icosphere.
* Texture1D can have only one target and it can be used as framebuffer
target.
Long-standing TODO, can be used for in-game mirrors etc. I give up with
shearing, as I think that it makes sense only in 2D and I can't find any
reasonable use case for that yet.
Framebuffer::attach*() doesn't need the target at all (meaning the
attachment will be used for both reading and drawing), another
misunderstanding on my side.
Now the extension is used on all places where it can be used (except for
unimplemented features).