mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 13:43:55 +08:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
509 lines
12 KiB
C
509 lines
12 KiB
C
|
|
/*
|
|
* 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 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';
|
|
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 */
|
|
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, "struct linux_logo %s __initdata = {\n", logoname);
|
|
fprintf(out, " .type\t= %s,\n", logo_types[logo_type]);
|
|
fprintf(out, " .width\t= %d,\n", logo_width);
|
|
fprintf(out, " .height\t= %d,\n", logo_height);
|
|
if (logo_type == LINUX_LOGO_CLUT224) {
|
|
fprintf(out, " .clutsize\t= %d,\n", logo_clutsize);
|
|
fprintf(out, " .clut\t= %s_clut,\n", logoname);
|
|
}
|
|
fprintf(out, " .data\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);
|
|
}
|
|
|