[rust] new example issue-rgb_packed #1806

rust/examples/issue-rgb_packed.rs

@@ -0,0 +1,39 @@
+use libnotcurses_sys::*;
+
+// BUGFIX DISCOVERINGS so far:
+//
+// - Height seems to be irrelevant (reference: 32)
+// - using the C API only works with Widths: 1-18, 22-34, 43-50
+
+const H: NcDim = 32;
+const W: NcDim = 35;
+
+fn main() -> NcResult<()> {
+    let mut nc = Nc::new()?;
+    let mut plane = NcPlane::new(&mut nc, 0, 0, H, W)?;
+
+    let buffer_rgb = vec![255; H as usize * W as usize * 3];
+
+    let visual = NcVisual::from_rgb_packed(buffer_rgb.as_slice(), H, W * 3, W, 255)?;
+    let voptions = NcVisualOptions::with_plane(
+        &mut plane,
+        NCSCALE_NONE,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        NCBLIT_PIXEL,
+        0,
+        0,
+    );
+    visual.render(nc, &voptions)?;
+    plane.render()?;
+    plane.rasterize()?;
+    sleep![1];
+    plane.destroy();
+    visual.destroy();
+    nc.stop()?;
+    Ok(())
+}