refactor: move emulation logic into sys

1 files changed, 33 insertions, 0 deletions

diff --git a/lib/nes/common/rgb.hh b/lib/nes/common/rgb.hh
new file mode 100644
index 0000000..d62c70c
--- /dev/null
+++ b/lib/nes/common/rgb.hh
@@ -0,0 +1,33 @@
+#pragma once
+
+#include <cstdint>
+
+namespace nes
+{
+	/// An RGB value.
+	class rgb
+	{
+	public:
+		explicit rgb() = default;
+
+		explicit rgb(std::uint8_t const r, std::uint8_t const g, std::uint8_t const b)
+			: r{ r }
+			, g{ g }
+			, b{ b }
+		{
+		}
+
+		static auto from_hex(std::uint32_t const hex) -> rgb
+		{
+			auto res = rgb{};
+			res.r = (hex & 0x00FF0000) >> 16;
+			res.g = (hex & 0x0000FF00) >> 8;
+			res.b = (hex & 0x000000FF) >> 0;
+			return res;
+		}
+
+		std::uint8_t r{ 0 };
+		std::uint8_t g{ 0 };
+		std::uint8_t b{ 0 };
+	};
+} // namespace nes
\ No newline at end of file