/* SPDX-License-Identifier: GPL-2.0 or MIT */ #ifndef DRM_FORMAT_INTERNAL_H#define DRM_FORMAT_INTERNAL_H#include <linux/bits.h>#include <linux/types.h>#include <linux/swab.h>/* * Each pixel - format conversion helper takes a raw pixel in a * specific input format and returns a raw pixel in a specific * output format . All pixels are in little - endian byte order . * * Function names are * * drm_pixel_ < input > _ to_ < output > _ < algorithm > ( ) * * where < input > and < output > refer to pixel formats . The * < algorithm > is optional and hints to the method used for the * conversion . Helpers with no algorithm given apply pixel - bit * shifting . * * The argument type is u32 . We expect this to be wide enough to * hold all conversion input from 32 - bit RGB to any output format . * The Linux kernel should avoid format conversion for anything * but XRGB8888 input data . Converting from other format can still * be acceptable in some cases . * * The return type is u32 . It is wide enough to hold all conversion * output from XRGB8888 . For output formats wider than 32 bit , a * return type of u64 would be acceptable . /* * Conversions from XRGB8888 static inline u32 drm_pixel_xrgb8888_to_r8_bt601(u32 pix)0 x00ff0000) >> 16 ;0 x0000ff00) >> 8 ;0 x000000ff;/* ITU-R BT.601: Y = 0.299 R + 0.587 G + 0.114 B */ return (77 * r + 150 * g + 29 * b) / 256 ;static inline u32 drm_pixel_xrgb8888_to_rgb332(u32 pix)return ((pix & 0 x00e00000) >> 16 ) |0 x0000e000) >> 11 ) |0 x000000c0) >> 6 );static inline u32 drm_pixel_xrgb8888_to_rgb565(u32 pix)return ((pix & 0 x00f80000) >> 8 ) |0 x0000fc00) >> 5 ) |0 x000000f8) >> 3 );static inline u32 drm_pixel_xrgb8888_to_rgb565be(u32 pix)return swab16(drm_pixel_xrgb8888_to_rgb565(pix));static inline u32 drm_pixel_xrgb8888_to_rgbx5551(u32 pix)return ((pix & 0 x00f80000) >> 8 ) |0 x0000f800) >> 5 ) |0 x000000f8) >> 2 );static inline u32 drm_pixel_xrgb8888_to_rgba5551(u32 pix)return drm_pixel_xrgb8888_to_rgbx5551(pix) |0 ); /* set alpha bit */ static inline u32 drm_pixel_xrgb8888_to_xrgb1555(u32 pix)return ((pix & 0 x00f80000) >> 9 ) |0 x0000f800) >> 6 ) |0 x000000f8) >> 3 );static inline u32 drm_pixel_xrgb8888_to_argb1555(u32 pix)return BIT(15 ) | /* set alpha bit */ static inline u32 drm_pixel_xrgb8888_to_rgb888(u32 pix)return pix & GENMASK(23 , 0 );static inline u32 drm_pixel_xrgb8888_to_bgr888(u32 pix)return ((pix & 0 x00ff0000) >> 16 ) |0 x0000ff00)) |0 x000000ff) << 16 );static inline u32 drm_pixel_xrgb8888_to_argb8888(u32 pix)return GENMASK(31 , 24 ) | /* fill alpha bits */ static inline u32 drm_pixel_xrgb8888_to_xbgr8888(u32 pix)return ((pix & 0 xff000000)) | /* also copy filler bits */ 0 x00ff0000) >> 16 ) |0 x0000ff00)) |0 x000000ff) << 16 );static inline u32 drm_pixel_xrgb8888_to_bgrx8888(u32 pix)return ((pix & 0 xff000000) >> 24 ) | /* also copy filler bits */ 0 x00ff0000) >> 8 ) |0 x0000ff00) << 8 ) |0 x000000ff) << 24 );static inline u32 drm_pixel_xrgb8888_to_abgr8888(u32 pix)return GENMASK(31 , 24 ) | /* fill alpha bits */ static inline u32 drm_pixel_xrgb8888_to_xrgb2101010(u32 pix)0 x000000ff) << 2 ) |0 x0000ff00) << 4 ) |0 x00ff0000) << 6 );return pix | ((pix >> 8 ) & 0 x00300c03);static inline u32 drm_pixel_xrgb8888_to_argb2101010(u32 pix)return GENMASK(31 , 30 ) | /* set alpha bits */ static inline u32 drm_pixel_xrgb8888_to_xbgr2101010(u32 pix)0 x00ff0000) >> 14 ) |0 x0000ff00) << 4 ) |0 x000000ff) << 22 );return pix | ((pix >> 8 ) & 0 x00300c03);static inline u32 drm_pixel_xrgb8888_to_abgr2101010(u32 pix)return GENMASK(31 , 30 ) | /* set alpha bits */ /* * Conversion from ARGB8888 static inline u32 drm_pixel_argb8888_to_argb4444(u32 pix)return ((pix & 0 xf0000000) >> 16 ) |0 x00f00000) >> 12 ) |0 x0000f000) >> 8 ) |0 x000000f0) >> 4 );#endif
Messung V0.5 in Prozent C=93 H=100 G=96
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-01)
¤ *© Formatika GbR, Deutschland
