1 #pragma once
3 #include <cstdint>
4 #include <string>
6 namespace kms
7 {
8 constexpr uint32_t MakeFourCC(const char *fourcc)
9 {
10 return fourcc[0] | (fourcc[1] << 8) | (fourcc[2] << 16) | (fourcc[3] << 24);
11 }
13 enum class PixelFormat : uint32_t
14 {
15 Undefined = 0,
17 NV12 = MakeFourCC("NV12"),
18 NV21 = MakeFourCC("NV21"),
20 UYVY = MakeFourCC("UYVY"),
21 YUYV = MakeFourCC("YUYV"),
22 YVYU = MakeFourCC("YVYU"),
23 VYUY = MakeFourCC("VYUY"),
25 XRGB8888 = MakeFourCC("XR24"),
26 XBGR8888 = MakeFourCC("XB24"),
27 ARGB8888 = MakeFourCC("AR24"),
28 ABGR8888 = MakeFourCC("AB24"),
30 RGB565 = MakeFourCC("RG16"),
31 };
33 static inline PixelFormat FourCCToPixelFormat(const std::string& fourcc)
34 {
35 return (PixelFormat)MakeFourCC(fourcc.c_str());
36 }
38 static inline std::string PixelFormatToFourCC(PixelFormat f)
39 {
40 char buf[5] = { (char)(((int)f >> 0) & 0xff),
41 (char)(((int)f >> 8) & 0xff),
42 (char)(((int)f >> 16) & 0xff),
43 (char)(((int)f >> 24) & 0xff),
44 0 };
45 return std::string(buf);
46 }
48 struct PixelFormatPlaneInfo
49 {
50 uint8_t bitspp;
51 uint8_t xsub;
52 uint8_t ysub;
53 };
55 struct PixelFormatInfo
56 {
57 uint8_t num_planes;
58 struct PixelFormatPlaneInfo planes[4];
59 };
61 const struct PixelFormatInfo& get_pixel_format_info(PixelFormat format);
63 }