1 files changed, 63 insertions, 0 deletions
diff --git a/kms++/pixelformats.h b/kms++/pixelformats.h
new file mode 100644
index 0000000..813eaef
--- /dev/null
+++ b/kms++/pixelformats.h
@@ -0,0 +1,63 @@
+#pragma once
+
+#include <cstdint>
+#include <string>
+
+namespace kms
+{
+constexpr uint32_t MakeFourCC(const char *fourcc)
+{
+	return fourcc[0] | (fourcc[1] << 8) | (fourcc[2] << 16) | (fourcc[3] << 24);
+}
+
+enum class PixelFormat : uint32_t
+{
+	Undefined = 0,
+
+	NV12 = MakeFourCC("NV12"),
+	NV21 = MakeFourCC("NV21"),
+
+	UYVY = MakeFourCC("UYVY"),
+	YUYV = MakeFourCC("YUYV"),
+	YVYU = MakeFourCC("YVYU"),
+	VYUY = MakeFourCC("VYUY"),
+
+	XRGB8888 = MakeFourCC("XR24"),
+	XBGR8888 = MakeFourCC("XB24"),
+	ARGB8888 = MakeFourCC("AR24"),
+	ABGR8888 = MakeFourCC("AB24"),
+
+	RGB565 = MakeFourCC("RG16"),
+};
+
+static inline PixelFormat FourCCToPixelFormat(const std::string& fourcc)
+{
+	return (PixelFormat)MakeFourCC(fourcc.c_str());
+}
+
+static inline std::string PixelFormatToFourCC(PixelFormat f)
+{
+	char buf[5] = { (char)(((int)f >> 0) & 0xff),
+			(char)(((int)f >> 8) & 0xff),
+			(char)(((int)f >> 16) & 0xff),
+			(char)(((int)f >> 24) & 0xff),
+			0 };
+	return std::string(buf);
+}
+
+struct PixelFormatPlaneInfo
+{
+	uint8_t bitspp;
+	uint8_t xsub;
+	uint8_t ysub;
+};
+
+struct PixelFormatInfo
+{
+	uint8_t num_planes;
+	struct PixelFormatPlaneInfo planes[4];
+};
+
+const struct PixelFormatInfo& get_pixel_format_info(PixelFormat format);
+
+}