# m2SDL3 showcases

Ports of SDL upstream renderer examples plus the snake demo,
flattened from the `SDL_AppInit/Iterate/...` callback style into
plain main loops (auto-quit timers so they terminate unattended):

| Showcase | Upstream source | What it shows |
|---|---|---|
| `showcase_clear` | `examples/renderer/01-clear` | fading clear via `SetRenderDrawColorFloat` + `sin` |
| `showcase_primitives` | `examples/renderer/02-primitives` | fill rect, 500 points, outline, X (`SDLFPoint` arrays) |
| `showcase_lines` | `examples/renderer/03-lines` | house segments, green polyline batch, 360-line circle (`RenderLines`, `cos`/`sin`) |
| `showcase_points` | `examples/renderer/04-points` | 500 drifting points in one `RenderPoints` batch |
| `showcase_rectangles` | `examples/renderer/05-rectangles` | animated outlines, fill, bar chart (`SDLFRect` arrays) |
| `showcase_debug_text` | `examples/renderer/18-debug-text` | bitmap debug text, colors, 4x scale, live seconds counter |
| `showcase_snake` | `examples/demo/01-snake` | playable Snake (arrows, R, Q/Esc), 30 s cap |

Run headless with `SDL_VIDEODRIVER=dummy`, e.g.:

```sh
SDL_VIDEODRIVER=dummy ./build/showcases/showcase_clear
```