From 2b1a8f48f3a414e565cefb809f3e6a7c6aa5f8a7 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Date: Wed, 6 Oct 2021 10:26:00 +0300
Subject: Split V4L2 code into separate libs

Create v4l2++ library and pyv4l2, which are independent from the rest of
the kms++.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
 v4l2++/inc/v4l2++/pixelformats.h | 111 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 v4l2++/inc/v4l2++/pixelformats.h

(limited to 'v4l2++/inc/v4l2++/pixelformats.h')

diff --git a/v4l2++/inc/v4l2++/pixelformats.h b/v4l2++/inc/v4l2++/pixelformats.h
new file mode 100644
index 0000000..609ff4f
--- /dev/null
+++ b/v4l2++/inc/v4l2++/pixelformats.h
@@ -0,0 +1,111 @@
+#pragma once
+
+#include <cstdint>
+#include <string>
+#include <stdexcept>
+
+namespace v4l2
+{
+
+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"),
+	NV16 = MakeFourCC("NV16"),
+	NV61 = MakeFourCC("NV61"),
+
+	YUV420 = MakeFourCC("YU12"),
+	YVU420 = MakeFourCC("YV12"),
+	YUV422 = MakeFourCC("YU16"),
+	YVU422 = MakeFourCC("YV16"),
+	YUV444 = MakeFourCC("YU24"),
+	YVU444 = MakeFourCC("YV24"),
+
+	UYVY = MakeFourCC("UYVY"),
+	YUYV = MakeFourCC("YUYV"),
+	YVYU = MakeFourCC("YVYU"),
+	VYUY = MakeFourCC("VYUY"),
+
+	XRGB8888 = MakeFourCC("XR24"),
+	XBGR8888 = MakeFourCC("XB24"),
+	RGBX8888 = MakeFourCC("RX24"),
+	BGRX8888 = MakeFourCC("BX24"),
+
+	ARGB8888 = MakeFourCC("AR24"),
+	ABGR8888 = MakeFourCC("AB24"),
+	RGBA8888 = MakeFourCC("RA24"),
+	BGRA8888 = MakeFourCC("BA24"),
+
+	RGB888 = MakeFourCC("RG24"),
+	BGR888 = MakeFourCC("BG24"),
+
+	RGB332 = MakeFourCC("RGB8"),
+
+	RGB565 = MakeFourCC("RG16"),
+	BGR565 = MakeFourCC("BG16"),
+
+	XRGB4444 = MakeFourCC("XR12"),
+	XRGB1555 = MakeFourCC("XR15"),
+
+	ARGB4444 = MakeFourCC("AR12"),
+	ARGB1555 = MakeFourCC("AR15"),
+
+	XRGB2101010 = MakeFourCC("XR30"),
+	XBGR2101010 = MakeFourCC("XB30"),
+	RGBX1010102 = MakeFourCC("RX30"),
+	BGRX1010102 = MakeFourCC("BX30"),
+
+	ARGB2101010 = MakeFourCC("AR30"),
+	ABGR2101010 = MakeFourCC("AB30"),
+	RGBA1010102 = MakeFourCC("RA30"),
+	BGRA1010102 = MakeFourCC("BA30"),
+
+	SBGGR12 = MakeFourCC("BG12"),
+	SRGGB12 = MakeFourCC("RG12"),
+
+	META_8 = MakeFourCC("ME08"),
+	META_16 = MakeFourCC("ME16"),
+};
+
+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)(((uint32_t)f >> 0) & 0xff),
+			(char)(((uint32_t)f >> 8) & 0xff),
+			(char)(((uint32_t)f >> 16) & 0xff),
+			(char)(((uint32_t)f >> 24) & 0xff),
+			0 };
+	return std::string(buf);
+}
+
+enum class PixelColorType {
+	RGB,
+	YUV,
+	RAW,
+};
+
+struct PixelFormatPlaneInfo {
+	uint8_t bitspp;
+	uint8_t xsub;
+	uint8_t ysub;
+};
+
+struct PixelFormatInfo {
+	PixelColorType type;
+	uint8_t num_planes;
+	struct PixelFormatPlaneInfo planes[4];
+};
+
+const struct PixelFormatInfo& get_pixel_format_info(PixelFormat format);
+
+} // namespace kms
-- 
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