+++ /dev/null
-
-/*
- * 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 int write_dtsi_hex_cnt;
-
-static void write_dtsi_hex(unsigned char byte)
-{
- if (write_dtsi_hex_cnt % 12)
- fprintf(out, " 0x%02x", byte);
- else if (write_dtsi_hex_cnt)
- fprintf(out, "\n\t\t\t\t0x%02x", byte);
- else
- fprintf(out, "\t\t\t\t0x%02x", byte);
- write_dtsi_hex_cnt++;
-}
-
-
-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 */
- printf("out bin name: %s\n", outputname);
- out = fopen(outputname, "w");
- 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 \n");
- fputs(" */\n\n", out);
- fputs("/ {\n\n", out);
- fprintf(out, "\t\tlogo: %s {\n", logoname);
- fprintf(out, "\t\t\tlogo_type = <%d>;\n", logo_type);
- fprintf(out, "\t\t\twidth = <%d>;\n", logo_width);
- fprintf(out, "\t\t\theight = <%d>;\n", logo_height);
- fprintf(out, "\t\t\tlogo_clutsize = <%d>;\n", logo_clutsize);
- fprintf(out, "\t\t\t%s_data = <\n", logoname);
-
- /* 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_dtsi_hex(k+32);
- }
- fputs(">;\n\n", out);
- fprintf(out, "\t\t\t%s_clut = <\n", logoname);
- write_dtsi_hex_cnt = 0;
- for (i = 0; i < logo_clutsize; i++) {
- write_dtsi_hex(logo_clut[i].red);
- write_dtsi_hex(logo_clut[i].green);
- write_dtsi_hex(logo_clut[i].blue);
- }
-
- /* write logo structure and file footer */
- fputs(">;\n\n\t\t};\n};", out);
- if (outputname){
- fclose(out);
- }
-}
-
-
-
-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);
-}
-
projects / firefly-linux-kernel-4.4.55.git / commitdiff