# gameframe-rage

Everything GameFrame knows about the ATI 3D Rage (I, II) and its ATI3DCIF interface: the
texture formats (`C3D_ETEXFMT`) with the texel layout each is, the drawing-surface formats
(`C3D_EPIXFMT`), the render-state ids (`C3D_ERSID`) and their names, and the primitive types.
Texel decoding is `gameframe-texel`'s.

Source: ATI Technologies, *3D RAGE Windows 95 Programmer's Guide*, SDK-C02700 rev. 1.30, 1997:
`C3D_ERSID` (p. 5-34), `C3D_EPIXFMT` (p. 5-31), `C3D_ETEXFMT` (p. 5-39).

`draw` is the chip's drawing as ATI3DCIF drives it: a `Context` holding the render state,
`C3D_VTCF` vertices, and `render_prim_list` drawing triangles or quads (solid, flat or
smooth shaded, alpha blended) into a 16-bit surface through `gameframe-raster`. The
`wrappers/ati3dcif` DLL and Un-POD's ATI renderer both draw with it.

Not here yet: texturing, fog, dithering, the Z buffer, YUV 4:2:2 textures and ATI's VQ
compression.

```rust
assert_eq!(gameframe_rage::render_state_name(14), Some("SURF_DRAW_PITCH"));
```

Licence: Apache 2.0.