Turns RenderLine line branches into template parameters, allowing the
compiler to eliminate the branches and also fully inline it.
Example FPS change
* In dungeon: 1450 -> 1530
* In town: 1655 -> 1700
Also splits RenderLine into 3 functions
Easier to read and also gives more useful profiling.
Apparently the most time is spent in `RenderLineOpaque`.
Also, mark them `inline` because that apparently hints GCC to inline
the function (in a later refactoring we can introduce attribute
always_inline instead where supported).
Clips `CelBlitOutlineTo` to the output buffer.
The templated implementation means that this compiles to many
case-specific functions with near-branchless inner loops.
Increases binary size by 92 KiB.
This should gradually replace all the direct rendering of game texts
throughout the code. The interface is made to closly mirror that of the
art fonts as that is what will eventually be used for rendering Unicode
fonts both in the menus and ingame.
fixup! ✨ Generic game text render function
Gleb Mazovetskiy
Anders Jenbo