[rust] fix pixel-cell example

- fix some docs and parameter names.

rust/examples/pixel-cell.rs

@@ -24,8 +24,8 @@ fn main() -> NcResult<()> {
     // print visual delimiters around our pixelized cell
     println!("0▗│▖\n│─ ─\n2▝│▘");
     println!("a cell is {}x{} pixels", pg.cell_y, pg.cell_x);
-    println!("\ninterpolated  not-interpolated  interpolated  not-interpolated");
-    println!("   SCALE          SCALE             RESIZE        RESIZE");
+    println!("\ninterpolated  not-interpolated  not-interpolated  interpolated");
+    println!("   SCALE          SCALE               RESIZE          RESIZE");
 
     // fill the buffer with random color pixels
     let mut rng = rand::thread_rng();
@@ -62,7 +62,7 @@ fn main() -> NcResult<()> {
         0,
     );
     v1.render(&mut nc, &voptions2)?;
-    rsleep![&mut nc, 1];
+    rsleep![&mut nc, 0, 250];
 
     // show the ncvisual, scaled without using interpolation
     let mut vplane3 = NcPlane::new_bound(&mut stdplane, 7, 19, 5, 4)?;
@@ -80,22 +80,22 @@ fn main() -> NcResult<()> {
         0,
     );
     v1.render(&mut nc, &voptions3)?;
-    rsleep![&mut nc, 1];
+    rsleep![&mut nc, 0, 250];
 
     // resize the ncvisual (doesn't use interpolation)
     let voptions4 =
-        NcVisualOptions::without_plane(7, 37, 0, 0, pg.cell_y, pg.cell_x, NCBLIT_PIXEL, 0, 0);
+        NcVisualOptions::without_plane(7, 39, 0, 0, pg.cell_y, pg.cell_x, NCBLIT_PIXEL, 0, 0);
     v1.resize_noninterpolative(pg.cell_y * 4, pg.cell_x * 4)?;
     v1.render(&mut nc, &voptions4)?;
-    rsleep![&mut nc, 1];
+    rsleep![&mut nc, 0, 250];
 
     // resize the ncvisual (uses interpolation)
     let v5 = NcVisual::from_rgba(buffer.as_slice(), pg.cell_y, pg.cell_x * 4, pg.cell_x)?;
     let voptions5 =
-        NcVisualOptions::without_plane(7, 51, 0, 0, pg.cell_y, pg.cell_x, NCBLIT_PIXEL, 0, 0);
-    v5.resize(18 * 4, 9 * 4)?; // FIXME: render function fails when downsizing (y<18 | x<9)
+        NcVisualOptions::without_plane(7, 56, 0, 0, pg.cell_y, pg.cell_x, NCBLIT_PIXEL, 0, 0);
+    v5.resize(pg.cell_y * 4, pg.cell_x * 4)?;
     v5.render(&mut nc, &voptions5)?;
-    rsleep![&mut nc, 1];
+    rsleep![&mut nc, 0, 250];
 
     sleep![2];
 

rust/src/direct/mod.rs

@@ -114,11 +114,11 @@ pub const NCDIRECT_OPTION_INHIBIT_SETLOCALE: NcDirectFlags =
 pub const NCDIRECT_OPTION_NO_QUIT_SIGHANDLERS: NcDirectFlags =
     crate::bindings::ffi::NCDIRECT_OPTION_NO_QUIT_SIGHANDLERS as NcDirectFlags;
 
-///
+/// Flag that enables showing detailed information.
 pub const NCDIRECT_OPTION_VERBOSE: NcDirectFlags =
     crate::bindings::ffi::NCDIRECT_OPTION_VERBOSE as NcDirectFlags;
 
-/// Enable all diagnostics (equivalent to
+/// Flag that enables showing all diagnostics (equivalent to
 /// [`NCLOGLEVEL_TRACE`][crate::NCLOGLEVEL_TRACE]).
 /// Implies [`NCDIRECT_OPTION_VERBOSE`].
 pub const NCDIRECT_OPTION_VERY_VERBOSE: NcDirectFlags =

rust/src/visual/methods.rs

@@ -183,7 +183,7 @@ impl NcVisual {
     ///
     /// *C style function: [ncvisual_from_rgb_loose()][crate::ncvisual_from_rgb_loose].*
     pub fn from_rgb_loose<'a>(
-        rgba: &[u8],
+        rgb: &[u8],
         rows: NcDim,
         rowstride: NcDim,
         cols: NcDim,
@@ -192,7 +192,7 @@ impl NcVisual {
         error_ref_mut![
             unsafe {
                 crate::ncvisual_from_rgb_loose(
-                    rgba.as_ptr() as *const c_void,
+                    rgb.as_ptr() as *const c_void,
                     rows as i32,
                     rowstride as i32,
                     cols as i32,
@@ -211,7 +211,7 @@ impl NcVisual {
     ///
     /// *C style function: [ncvisual_from_rgb_packed()][crate::ncvisual_from_rgb_packed].*
     pub fn from_rgb_packed<'a>(
-        rgba: &[u8],
+        rgb: &[u8],
         rows: NcDim,
         rowstride: NcDim,
         cols: NcDim,
@@ -220,7 +220,7 @@ impl NcVisual {
         error_ref_mut![
             unsafe {
                 crate::ncvisual_from_rgb_packed(
-                    rgba.as_ptr() as *const c_void,
+                    rgb.as_ptr() as *const c_void,
                     rows as i32,
                     rowstride as i32,
                     cols as i32,