1 // SPDX-License-Identifier: GPL-2.0-only
3  *  Convert a logo in ASCII PNM format to C source suitable for inclusion in
6  *  (C) Copyright 2001-2003 by Geert Uytterhoeven <geert@linux-m68k.org>
100 		val = 10*val+c-'0';  in get_number()
124 	unsigned int i, j;  in read_image()  local
150 		"Use pnmnoraw(1) to convert it to ASCII PNM\n", filename);  in read_image()
174 			for (j = 0; j < logo_width; j++)  in read_image()
175 				logo_data[i][j].red = logo_data[i][j].green =  in read_image()
176 					logo_data[i][j].blue = 255*(1-get_number(fp));  in read_image()
183 			for (j = 0; j < logo_width; j++)  in read_image()
184 				logo_data[i][j].red = logo_data[i][j].green =  in read_image()
185 					logo_data[i][j].blue = get_number255(fp, maxval);  in read_image()
192 			for (j = 0; j < logo_width; j++) {  in read_image()
193 				logo_data[i][j].red = get_number255(fp, maxval);  in read_image()
194 				logo_data[i][j].green = get_number255(fp, maxval);  in read_image()
195 				logo_data[i][j].blue = get_number255(fp, maxval);  in read_image()
279 	unsigned int i, j;  in write_logo_mono()  local
284 		for (j = 0; j < logo_width; j++)  in write_logo_mono()
285 			if (!is_black(logo_data[i][j]) && !is_white(logo_data[i][j]))  in write_logo_mono()
293 		for (j = 0; j < logo_width;) {  in write_logo_mono()
294 			for (val = 0, bit = 0x80; bit && j < logo_width; j++, bit >>= 1)  in write_logo_mono()
295 				if (logo_data[i][j].red)  in write_logo_mono()
307 	unsigned int i, j, k;  in write_logo_vga16()  local
312 		for (j = 0; j < logo_width; j++) {  in write_logo_vga16()
313 			for (k = 0; k < 16; k++)  in write_logo_vga16()
314 				if (is_equal(logo_data[i][j], clut_vga16[k]))  in write_logo_vga16()
316 			if (k == 16)  in write_logo_vga16()
318 				    "Use ppmquant(1) -map clut_vga16.ppm to reduce the number "  in write_logo_vga16()
327 		for (j = 0; j < logo_width; j++) {  in write_logo_vga16()
328 			for (k = 0; k < 16; k++)  in write_logo_vga16()
329 				if (is_equal(logo_data[i][j], clut_vga16[k]))  in write_logo_vga16()
331 			val = k<<4;  in write_logo_vga16()
332 			if (++j < logo_width) {  in write_logo_vga16()
333 				for (k = 0; k < 16; k++)  in write_logo_vga16()
334 					if (is_equal(logo_data[i][j], clut_vga16[k]))  in write_logo_vga16()
336 				val |= k;  in write_logo_vga16()
347 	unsigned int i, j, k;  in write_logo_clut224()  local
351 		for (j = 0; j < logo_width; j++) {  in write_logo_clut224()
352 			for (k = 0; k < logo_clutsize; k++)  in write_logo_clut224()
353 				if (is_equal(logo_data[i][j], logo_clut[k]))  in write_logo_clut224()
355 			if (k == logo_clutsize) {  in write_logo_clut224()
358 					    "Use ppmquant(1) to reduce the number of colors\n",  in write_logo_clut224()
360 				logo_clut[logo_clutsize++] = logo_data[i][j];  in write_logo_clut224()
369 		for (j = 0; j < logo_width; j++) {  in write_logo_clut224()
370 			for (k = 0; k < logo_clutsize; k++)  in write_logo_clut224()
371 				if (is_equal(logo_data[i][j], logo_clut[k]))  in write_logo_clut224()
373 			write_hex(k+32);  in write_logo_clut224()
393 	unsigned int i, j;  in write_logo_gray256()  local
397 		for (j = 0; j < logo_width; j++)  in write_logo_gray256()
398 			if (!is_gray(logo_data[i][j]))  in write_logo_gray256()
406 		for (j = 0; j < logo_width; j++)  in write_logo_gray256()
407 			write_hex(logo_data[i][j].red);  in write_logo_gray256()
430 	"	-h		  : display this usage information\n"  in usage()
431 	"	-n <name>   : specify logo name (default: linux_logo)\n"  in usage()
432 	"	-o <output> : output to file <output> instead of stdout\n"  in usage()
433 	"	-t <type>   : specify logo type, one of\n"  in usage()
450 		if (opt == -1)  in main()
484 	if (optind != argc-1)  in main()