[nostalgia/core] Add color 16 functions

2020-03-29 13:35:23 -05:00
parent a81582d3cd
commit 11cb4d5a44
2 changed files with 28 additions and 3 deletions
@@ -83,12 +83,32 @@ ox::Error model(T *io, NostalgiaGraphic *ng) {
 [[nodiscard]] uint8_t blue32(Color16 c) noexcept;


+[[nodiscard]] constexpr Color16 color16(uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
+	return r | (g << 5) | (b << 10) | (a << 15);
+}
+
 [[nodiscard]] uint8_t red32(Color32 c) noexcept;

 [[nodiscard]] uint8_t green32(Color32 c) noexcept;

 [[nodiscard]] uint8_t blue32(Color32 c) noexcept;

+[[nodiscard]] constexpr uint8_t red16(Color16 c) noexcept {
+	return c & 0b0000000000011111;
+}
+
+[[nodiscard]] constexpr uint8_t green16(Color16 c) noexcept {
+	return (c & 0b0000001111100000) >> 5;
+}
+
+[[nodiscard]] constexpr uint8_t blue16(Color16 c) noexcept {
+	return (c & 0b0111110000000000) >> 10;
+}
+
+[[nodiscard]] constexpr uint8_t alpha16(Color16 c) noexcept {
+	return c >> 15;
+}
+
 void puts(Context *ctx, int column, int row, const char *str);

 void setTile(Context *ctx, int layer, int column, int row, uint8_t tile);