feat: Implement the rest of Rgb conversion traits for Color

tinybmp and other crates require Color to implement all Rgb transformations
caemor · Dec 5, 2024 · 80d364d · 80d364d
1 parent c551ff0
commit 80d364d
Showing 1 changed file with 62 additions and 2 deletions.
diff --git a/src/color.rs b/src/color.rs
@@ -346,8 +346,68 @@ impl From<Color> for embedded_graphics_core::pixelcolor::Rgb888 {
     fn from(color: Color) -> Self {
         use embedded_graphics_core::pixelcolor::RgbColor;
         match color {
-            Color::Black => embedded_graphics_core::pixelcolor::Rgb888::BLACK,
-            Color::White => embedded_graphics_core::pixelcolor::Rgb888::WHITE,
+            Color::Black => embedded_graphics_core::pixelcolor::Rgb888::WHITE,
+            Color::White => embedded_graphics_core::pixelcolor::Rgb888::BLACK,
+        }
+    }
+}
+
+#[cfg(feature = "graphics")]
+impl From<embedded_graphics_core::pixelcolor::Rgb565> for Color {
+    fn from(rgb: embedded_graphics_core::pixelcolor::Rgb565) -> Self {
+        use embedded_graphics_core::pixelcolor::RgbColor;
+        if rgb == RgbColor::BLACK {
+            Color::White
+        } else if rgb == RgbColor::WHITE {
+            Color::Black
+        } else {
+            // choose closest color
+            if (rgb.r() as u16 + rgb.g() as u16 + rgb.b() as u16) > 255 * 3 / 2 {
+                Color::Black
+            } else {
+                Color::White
+            }
+        }
+    }
+}
+
+#[cfg(feature = "graphics")]
+impl From<Color> for embedded_graphics_core::pixelcolor::Rgb565 {
+    fn from(color: Color) -> Self {
+        use embedded_graphics_core::pixelcolor::RgbColor;
+        match color {
+            Color::Black => Self::WHITE,
+            Color::White => Self::BLACK,
+        }
+    }
+}
+
+#[cfg(feature = "graphics")]
+impl From<embedded_graphics_core::pixelcolor::Rgb555> for Color {
+    fn from(rgb: embedded_graphics_core::pixelcolor::Rgb555) -> Self {
+        use embedded_graphics_core::pixelcolor::RgbColor;
+        if rgb == RgbColor::BLACK {
+            Color::White
+        } else if rgb == RgbColor::WHITE {
+            Color::Black
+        } else {
+            // choose closest color
+            if (rgb.r() as u16 + rgb.g() as u16 + rgb.b() as u16) > 255 * 3 / 2 {
+                Color::Black
+            } else {
+                Color::White
+            }
+        }
+    }
+}
+
+#[cfg(feature = "graphics")]
+impl From<Color> for embedded_graphics_core::pixelcolor::Rgb555 {
+    fn from(color: Color) -> Self {
+        use embedded_graphics_core::pixelcolor::RgbColor;
+        match color {
+            Color::Black => Self::WHITE,
+            Color::White => Self::BLACK,
         }
     }
 }