diff options
Diffstat (limited to 'scripts/pnmtologo.c')
| -rw-r--r-- | scripts/pnmtologo.c | 514 |
1 files changed, 0 insertions, 514 deletions
diff --git a/scripts/pnmtologo.c b/scripts/pnmtologo.c deleted file mode 100644 index 4718d7895f0b..000000000000 --- a/scripts/pnmtologo.c +++ /dev/null @@ -1,514 +0,0 @@ - -/* - * Convert a logo in ASCII PNM format to C source suitable for inclusion in - * the Linux kernel - * - * (C) Copyright 2001-2003 by Geert Uytterhoeven <geert@linux-m68k.org> - * - * -------------------------------------------------------------------------- - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of the Linux - * distribution for more details. - */ - -#include <ctype.h> -#include <errno.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - - -static const char *programname; -static const char *filename; -static const char *logoname = "linux_logo"; -static const char *outputname; -static FILE *out; - - -#define LINUX_LOGO_MONO 1 /* monochrome black/white */ -#define LINUX_LOGO_VGA16 2 /* 16 colors VGA text palette */ -#define LINUX_LOGO_CLUT224 3 /* 224 colors */ -#define LINUX_LOGO_GRAY256 4 /* 256 levels grayscale */ - -static const char *logo_types[LINUX_LOGO_GRAY256+1] = { - [LINUX_LOGO_MONO] = "LINUX_LOGO_MONO", - [LINUX_LOGO_VGA16] = "LINUX_LOGO_VGA16", - [LINUX_LOGO_CLUT224] = "LINUX_LOGO_CLUT224", - [LINUX_LOGO_GRAY256] = "LINUX_LOGO_GRAY256" -}; - -#define MAX_LINUX_LOGO_COLORS 224 - -struct color { - unsigned char red; - unsigned char green; - unsigned char blue; -}; - -static const struct color clut_vga16[16] = { - { 0x00, 0x00, 0x00 }, - { 0x00, 0x00, 0xaa }, - { 0x00, 0xaa, 0x00 }, - { 0x00, 0xaa, 0xaa }, - { 0xaa, 0x00, 0x00 }, - { 0xaa, 0x00, 0xaa }, - { 0xaa, 0x55, 0x00 }, - { 0xaa, 0xaa, 0xaa }, - { 0x55, 0x55, 0x55 }, - { 0x55, 0x55, 0xff }, - { 0x55, 0xff, 0x55 }, - { 0x55, 0xff, 0xff }, - { 0xff, 0x55, 0x55 }, - { 0xff, 0x55, 0xff }, - { 0xff, 0xff, 0x55 }, - { 0xff, 0xff, 0xff }, -}; - - -static int logo_type = LINUX_LOGO_CLUT224; -static unsigned int logo_width; -static unsigned int logo_height; -static struct color **logo_data; -static struct color logo_clut[MAX_LINUX_LOGO_COLORS]; -static unsigned int logo_clutsize; -static int is_plain_pbm = 0; - -static void die(const char *fmt, ...) - __attribute__ ((noreturn)) __attribute ((format (printf, 1, 2))); -static void usage(void) __attribute ((noreturn)); - - -static unsigned int get_number(FILE *fp) -{ - int c, val; - - /* Skip leading whitespace */ - do { - c = fgetc(fp); - if (c == EOF) - die("%s: end of file\n", filename); - if (c == '#') { - /* Ignore comments 'till end of line */ - do { - c = fgetc(fp); - if (c == EOF) - die("%s: end of file\n", filename); - } while (c != '\n'); - } - } while (isspace(c)); - - /* Parse decimal number */ - val = 0; - while (isdigit(c)) { - val = 10*val+c-'0'; - /* some PBM are 'broken'; GiMP for example exports a PBM without space - * between the digits. This is Ok cause we know a PBM can only have a '1' - * or a '0' for the digit. */ - if (is_plain_pbm) - break; - c = fgetc(fp); - if (c == EOF) - die("%s: end of file\n", filename); - } - return val; -} - -static unsigned int get_number255(FILE *fp, unsigned int maxval) -{ - unsigned int val = get_number(fp); - return (255*val+maxval/2)/maxval; -} - -static void read_image(void) -{ - FILE *fp; - unsigned int i, j; - int magic; - unsigned int maxval; - - /* open image file */ - fp = fopen(filename, "r"); - if (!fp) - die("Cannot open file %s: %s\n", filename, strerror(errno)); - - /* check file type and read file header */ - magic = fgetc(fp); - if (magic != 'P') - die("%s is not a PNM file\n", filename); - magic = fgetc(fp); - switch (magic) { - case '1': - case '2': - case '3': - /* Plain PBM/PGM/PPM */ - break; - - case '4': - case '5': - case '6': - /* Binary PBM/PGM/PPM */ - die("%s: Binary PNM is not supported\n" - "Use pnmnoraw(1) to convert it to ASCII PNM\n", filename); - - default: - die("%s is not a PNM file\n", filename); - } - logo_width = get_number(fp); - logo_height = get_number(fp); - - /* allocate image data */ - logo_data = (struct color **)malloc(logo_height*sizeof(struct color *)); - if (!logo_data) - die("%s\n", strerror(errno)); - for (i = 0; i < logo_height; i++) { - logo_data[i] = malloc(logo_width*sizeof(struct color)); - if (!logo_data[i]) - die("%s\n", strerror(errno)); - } - - /* read image data */ - switch (magic) { - case '1': - /* Plain PBM */ - is_plain_pbm = 1; - for (i = 0; i < logo_height; i++) - for (j = 0; j < logo_width; j++) - logo_data[i][j].red = logo_data[i][j].green = - logo_data[i][j].blue = 255*(1-get_number(fp)); - break; - - case '2': - /* Plain PGM */ - maxval = get_number(fp); - for (i = 0; i < logo_height; i++) - for (j = 0; j < logo_width; j++) - logo_data[i][j].red = logo_data[i][j].green = - logo_data[i][j].blue = get_number255(fp, maxval); - break; - - case '3': - /* Plain PPM */ - maxval = get_number(fp); - for (i = 0; i < logo_height; i++) - for (j = 0; j < logo_width; j++) { - logo_data[i][j].red = get_number255(fp, maxval); - logo_data[i][j].green = get_number255(fp, maxval); - logo_data[i][j].blue = get_number255(fp, maxval); - } - break; - } - - /* close file */ - fclose(fp); -} - -static inline int is_black(struct color c) -{ - return c.red == 0 && c.green == 0 && c.blue == 0; -} - -static inline int is_white(struct color c) -{ - return c.red == 255 && c.green == 255 && c.blue == 255; -} - -static inline int is_gray(struct color c) -{ - return c.red == c.green && c.red == c.blue; -} - -static inline int is_equal(struct color c1, struct color c2) -{ - return c1.red == c2.red && c1.green == c2.green && c1.blue == c2.blue; -} - -static void write_header(void) -{ - /* open logo file */ - if (outputname) { - out = fopen(outputname, "w"); - if (!out) - die("Cannot create file %s: %s\n", outputname, strerror(errno)); - } else { - out = stdout; - } - - fputs("/*\n", out); - fputs(" * DO NOT EDIT THIS FILE!\n", out); - fputs(" *\n", out); - fprintf(out, " * It was automatically generated from %s\n", filename); - fputs(" *\n", out); - fprintf(out, " * Linux logo %s\n", logoname); - fputs(" */\n\n", out); - fputs("#include <linux/linux_logo.h>\n\n", out); - fprintf(out, "static unsigned char %s_data[] __initdata = {\n", - logoname); -} - -static void write_footer(void) -{ - fputs("\n};\n\n", out); - fprintf(out, "const struct linux_logo %s __initconst = {\n", logoname); - fprintf(out, "\t.type\t\t= %s,\n", logo_types[logo_type]); - fprintf(out, "\t.width\t\t= %d,\n", logo_width); - fprintf(out, "\t.height\t\t= %d,\n", logo_height); - if (logo_type == LINUX_LOGO_CLUT224) { - fprintf(out, "\t.clutsize\t= %d,\n", logo_clutsize); - fprintf(out, "\t.clut\t\t= %s_clut,\n", logoname); - } - fprintf(out, "\t.data\t\t= %s_data\n", logoname); - fputs("};\n\n", out); - - /* close logo file */ - if (outputname) - fclose(out); -} - -static int write_hex_cnt; - -static void write_hex(unsigned char byte) -{ - if (write_hex_cnt % 12) - fprintf(out, ", 0x%02x", byte); - else if (write_hex_cnt) - fprintf(out, ",\n\t0x%02x", byte); - else - fprintf(out, "\t0x%02x", byte); - write_hex_cnt++; -} - -static void write_logo_mono(void) -{ - unsigned int i, j; - unsigned char val, bit; - - /* validate image */ - for (i = 0; i < logo_height; i++) - for (j = 0; j < logo_width; j++) - if (!is_black(logo_data[i][j]) && !is_white(logo_data[i][j])) - die("Image must be monochrome\n"); - - /* write file header */ - write_header(); - - /* write logo data */ - for (i = 0; i < logo_height; i++) { - for (j = 0; j < logo_width;) { - for (val = 0, bit = 0x80; bit && j < logo_width; j++, bit >>= 1) - if (logo_data[i][j].red) - val |= bit; - write_hex(val); - } - } - - /* write logo structure and file footer */ - write_footer(); -} - -static void write_logo_vga16(void) -{ - unsigned int i, j, k; - unsigned char val; - - /* validate image */ - for (i = 0; i < logo_height; i++) - for (j = 0; j < logo_width; j++) { - for (k = 0; k < 16; k++) - if (is_equal(logo_data[i][j], clut_vga16[k])) - break; - if (k == 16) - die("Image must use the 16 console colors only\n" - "Use ppmquant(1) -map clut_vga16.ppm to reduce the number " - "of colors\n"); - } - - /* write file header */ - write_header(); - - /* write logo data */ - for (i = 0; i < logo_height; i++) - for (j = 0; j < logo_width; j++) { - for (k = 0; k < 16; k++) - if (is_equal(logo_data[i][j], clut_vga16[k])) - break; - val = k<<4; - if (++j < logo_width) { - for (k = 0; k < 16; k++) - if (is_equal(logo_data[i][j], clut_vga16[k])) - break; - val |= k; - } - write_hex(val); - } - - /* write logo structure and file footer */ - write_footer(); -} - -static void write_logo_clut224(void) -{ - unsigned int i, j, k; - - /* validate image */ - for (i = 0; i < logo_height; i++) - for (j = 0; j < logo_width; j++) { - for (k = 0; k < logo_clutsize; k++) - if (is_equal(logo_data[i][j], logo_clut[k])) - break; - if (k == logo_clutsize) { - if (logo_clutsize == MAX_LINUX_LOGO_COLORS) - die("Image has more than %d colors\n" - "Use ppmquant(1) to reduce the number of colors\n", - MAX_LINUX_LOGO_COLORS); - logo_clut[logo_clutsize++] = logo_data[i][j]; - } - } - - /* write file header */ - write_header(); - - /* write logo data */ - for (i = 0; i < logo_height; i++) - for (j = 0; j < logo_width; j++) { - for (k = 0; k < logo_clutsize; k++) - if (is_equal(logo_data[i][j], logo_clut[k])) - break; - write_hex(k+32); - } - fputs("\n};\n\n", out); - - /* write logo clut */ - fprintf(out, "static unsigned char %s_clut[] __initdata = {\n", - logoname); - write_hex_cnt = 0; - for (i = 0; i < logo_clutsize; i++) { - write_hex(logo_clut[i].red); - write_hex(logo_clut[i].green); - write_hex(logo_clut[i].blue); - } - - /* write logo structure and file footer */ - write_footer(); -} - -static void write_logo_gray256(void) -{ - unsigned int i, j; - - /* validate image */ - for (i = 0; i < logo_height; i++) - for (j = 0; j < logo_width; j++) - if (!is_gray(logo_data[i][j])) - die("Image must be grayscale\n"); - - /* write file header */ - write_header(); - - /* write logo data */ - for (i = 0; i < logo_height; i++) - for (j = 0; j < logo_width; j++) - write_hex(logo_data[i][j].red); - - /* write logo structure and file footer */ - write_footer(); -} - -static void die(const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - vfprintf(stderr, fmt, ap); - va_end(ap); - - exit(1); -} - -static void usage(void) -{ - die("\n" - "Usage: %s [options] <filename>\n" - "\n" - "Valid options:\n" - " -h : display this usage information\n" - " -n <name> : specify logo name (default: linux_logo)\n" - " -o <output> : output to file <output> instead of stdout\n" - " -t <type> : specify logo type, one of\n" - " mono : monochrome black/white\n" - " vga16 : 16 colors VGA text palette\n" - " clut224 : 224 colors (default)\n" - " gray256 : 256 levels grayscale\n" - "\n", programname); -} - -int main(int argc, char *argv[]) -{ - int opt; - - programname = argv[0]; - - opterr = 0; - while (1) { - opt = getopt(argc, argv, "hn:o:t:"); - if (opt == -1) - break; - - switch (opt) { - case 'h': - usage(); - break; - - case 'n': - logoname = optarg; - break; - - case 'o': - outputname = optarg; - break; - - case 't': - if (!strcmp(optarg, "mono")) - logo_type = LINUX_LOGO_MONO; - else if (!strcmp(optarg, "vga16")) - logo_type = LINUX_LOGO_VGA16; - else if (!strcmp(optarg, "clut224")) - logo_type = LINUX_LOGO_CLUT224; - else if (!strcmp(optarg, "gray256")) - logo_type = LINUX_LOGO_GRAY256; - else - usage(); - break; - - default: - usage(); - break; - } - } - if (optind != argc-1) - usage(); - - filename = argv[optind]; - - read_image(); - switch (logo_type) { - case LINUX_LOGO_MONO: - write_logo_mono(); - break; - - case LINUX_LOGO_VGA16: - write_logo_vga16(); - break; - - case LINUX_LOGO_CLUT224: - write_logo_clut224(); - break; - - case LINUX_LOGO_GRAY256: - write_logo_gray256(); - break; - } - exit(0); -} |