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/linux/Documentation/fb/
H A Dapi.rst52 bits_per_pixel, grayscale, red, green, blue and transp fields.
89 stored in the variable screen information grayscale field.
142 identifier stored in the variable screen information grayscale field.
191 __u32 grayscale; /* 0 = color, 1 = grayscale, */
240 for applications when using RGB and grayscale formats, as well as legacy
245 monochrome, grayscale or pseudocolor visuals, although this is not required.
247 - For grayscale formats, applications set the grayscale field to one. The red,
252 - For pseudocolor formats, applications set the grayscale field to zero. The
257 - For truecolor and directcolor formats, applications set the grayscale field
285 and grayscale formats.
[all …]
H A Dcmap_xfbdev.rst7 - example of relevant structures in fbdev as used for a 3-bit grayscale cmap::
11 .grayscale = 1,
24 - X11 apps do something like the following when trying to use grayscale::
H A Dinternals.rst82 Grayscale displays
84 Grayscale and static grayscale are special variants of pseudo color and static
H A Dmatroxfb.rst215 grayscale enable grayscale summing. It works in PSEUDOCOLOR modes (text,
219 nograyscale disable grayscale summing. It is default.
/linux/drivers/video/fbdev/
H A Docfb.c144 if (!var->grayscale) in ocfb_setupfb()
186 if (info->var.grayscale) { in ocfb_setcolreg()
187 /* grayscale = 0.30*R + 0.59*G + 0.11*B */ in ocfb_setcolreg()
196 if (info->var.bits_per_pixel == 8 && !info->var.grayscale) { in ocfb_setcolreg()
222 if (var->bits_per_pixel == 8 && !var->grayscale) in ocfb_init_fix()
H A Dstifb.c26 * HPA1924A known as "GRX", a 1280x1024 grayscale device with 8 planes
31 * HP710G same as HP710C, 1280x1024 grayscale only
938 var->grayscale = fb->info->var.grayscale; in stifb_check_var()
964 if (unlikely(fb->info->var.grayscale)) { in stifb_setcolreg()
1256 case S9000_ID_ELM: /* GRX, grayscale but else same as A1659A */ in stifb_init_fb()
1257 var->grayscale = 1; in stifb_init_fb()
1260 case S9000_ID_TIMBER: /* HP9000/710 Any (may be a grayscale device) */ in stifb_init_fb()
1261 if (strstr(dev_name, "GRAYSCALE") || in stifb_init_fb()
1262 strstr(dev_name, "Grayscale") || in stifb_init_fb()
1263 strstr(dev_name, "grayscale")) in stifb_init_fb()
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H A Dsh7760fb.c181 if ((var->grayscale) && (var->bits_per_pixel == 1)) in sh7760fb_check_var()
195 * NOTE: The rotation, grayscale and DSTN codepaths are
232 vdln, bpp, gray ? "grayscale" : "color", in sh7760fb_set_par()
394 if (info->var.grayscale) { in sh7760fb_alloc_mem()
H A D68328fb.c284 /* grayscale works only partially under directcolor */ in mc68x328fb_setcolreg()
285 if (info->var.grayscale) { in mc68x328fb_setcolreg()
286 /* grayscale = 0.30*R + 0.59*G + 0.11*B */ in mc68x328fb_setcolreg()
H A Dvfb.c275 /* grayscale works only partially under directcolor */ in vfb_setcolreg()
276 if (info->var.grayscale) { in vfb_setcolreg()
277 /* grayscale = 0.30*R + 0.59*G + 0.11*B */ in vfb_setcolreg()
H A Dxilinxfb.c205 if (fbi->var.grayscale) { in xilinx_fb_setcolreg()
206 /* Convert color to grayscale. in xilinx_fb_setcolreg()
207 * grayscale = 0.30*R + 0.59*G + 0.11*B in xilinx_fb_setcolreg()
H A Dgbefb.c96 .grayscale = 0,
127 .grayscale = 0,
921 var->grayscale = 0; /* No grayscale for now */ in gbefb_check_var()
940 /* No grayscale for now */ in gbefb_check_var()
941 var->grayscale = 0; in gbefb_check_var()
H A Dgoldfishfb.c110 (var->grayscale != info->var.grayscale)) { in goldfish_fb_check_var()
H A Dpmag-aa-fb.c76 .grayscale = 1,
H A Dskeletonfb.c293 /* grayscale works only partially under directcolor */ in xxxfb_setcolreg()
294 if (info->var.grayscale) { in xxxfb_setcolreg()
295 /* grayscale = 0.30*R + 0.59*G + 0.11*B */ in xxxfb_setcolreg()
H A Dwm8505fb.c201 if (info->var.grayscale) in wm8505fb_setcolreg()
H A Ds1d13xxxfb.c276 if (info->var.grayscale) in s1d13xxxfb_setcolreg()
719 var->grayscale = !is_color; in s1d13xxxfb_fetch_hw_state()
/linux/drivers/staging/fbtft/
H A Dfb_ssd1325.c93 * Grayscale Lookup Table
108 "Illegal value in Grayscale Lookup Table at index %d.\n" in set_gamma()
114 "Illegal value(s) in Grayscale Lookup Table.\n" in set_gamma()
H A Dfb_ssd1331.c111 * Grayscale Lookup Table
139 "Illegal value in Grayscale Lookup Table at index %d. Must be greater than 1\n", in set_gamma()
147 …"Illegal value(s) in Grayscale Lookup Table. At index=%d, the accumulated value has exceeded 180\n… in set_gamma()
H A Dfb_uc1611.c5 * The display is 4-bit grayscale (16 shades) 240x160.
102 /* Set 4-bit grayscale mode */ in init_display()
148 par->info->var.grayscale = 1; in set_var()
/linux/Documentation/devicetree/bindings/media/
H A Draspberrypi,pispbe.yaml15 processor that fetches images in Bayer or Grayscale format from DRAM memory
/linux/drivers/video/logo/
H A Dpnmtologo.c28 #define LINUX_LOGO_GRAY256 4 /* 256 levels grayscale */
399 die("Image must be grayscale\n"); in write_logo_gray256()
437 " gray256 : 256 levels grayscale\n" in usage()
/linux/drivers/video/fbdev/geode/
H A Dlxfb_core.c294 if (info->var.grayscale) { in lxfb_setcolreg()
295 /* grayscale = 0.30*R + 0.59*G + 0.11*B */ in lxfb_setcolreg()
441 info->var.grayscale = 0; in lxfb_init_fbinfo()
/linux/include/uapi/linux/
H A Dfb.h252 __u32 grayscale; /* 0 = color, 1 = grayscale, */ member
/linux/drivers/hid/
H A Dhid-picolcd_fb.c66 .grayscale = 1,
311 /* only allow 1/8 bit depth (8-bit is grayscale) */ in picolcd_fb_check_var()
/linux/drivers/video/fbdev/core/
H A Dfbcon.c348 * is grayscale. However, simply dividing the values by 4 in get_color()
351 * colors to a sane 4-level grayscale. in get_color()
978 disp->grayscale = var->grayscale; in var_to_display()
1002 var->grayscale = disp->grayscale; in display_to_var()

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