ona/source/coral/image.cpp

export module coral.image;

import coral;

export namespace coral {
	/**
	 * All-purpose color value for red, green, blue, alpha channel-encoded values.
	 */
	struct color {
		/**
		 * Red channel.
		 */
		float r;

		/**
		 * Green channel.
		 */
		float g;

		/**
		 * Blue channel.
		 */
		float b;

		/**
		 * Alpha channel.
		 */
		float a;

		/**
		 * Red channel represented in an 8-bit unsigned value.
		 */
		u8 to_r8() const {
			return static_cast<u8>(round32(clamp(this->r, 0.0f, 1.0f) * u8_max));
		}

		/**
		 * Green channel represented in an 8-bit unsigned value.
		 */
		u8 to_g8() const {
			return static_cast<u8>(round32(clamp(this->g, 0.0f, 1.0f) * u8_max));
		}

		/**
		 * Blue channel represented in an 8-bit unsigned value.
		 */
		u8 to_b8() const {
			return static_cast<u8>(round32(clamp(this->b, 0.0f, 1.0f) * u8_max));
		}

		/**
		 * Alpha channel represented in an 8-bit unsigned value.
		 */
		u8 to_a8() const {
			return static_cast<u8>(round32(clamp(this->a, 0.0f, 1.0f) * u8_max));
		}
	};
}