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[/] [test_project/] [trunk/] [linux_sd_driver/] [scripts/] [pnmtologo.c] - Blame information for rev 81

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/*
 *  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);
}
 

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[/] [test_project/] [trunk/] [linux_sd_driver/] [scripts/] [pnmtologo.c] - Blame information for rev 81

Line No.	Rev	Author	Line
1	62	marcus.erl
2			`/*`
3			`* Convert a logo in ASCII PNM format to C source suitable for inclusion in`
4			`* the Linux kernel`
5			`*`
6			`* (C) Copyright 2001-2003 by Geert Uytterhoeven <geert@linux-m68k.org>`
7			`*`
8			`* --------------------------------------------------------------------------`
9			`*`
10			`* This file is subject to the terms and conditions of the GNU General Public`
11			`* License. See the file COPYING in the main directory of the Linux`
12			`* distribution for more details.`
13			`*/`
14
15			`#include <ctype.h>`
16			`#include <errno.h>`
17			`#include <stdarg.h>`
18			`#include <stdio.h>`
19			`#include <stdlib.h>`
20			`#include <string.h>`
21			`#include <unistd.h>`
22
23
24			`static const char *programname;`
25			`static const char *filename;`
26			`static const char *logoname = "linux_logo";`
27			`static const char *outputname;`
28			`static FILE *out;`
29
30
31			`#define LINUX_LOGO_MONO 1 /* monochrome black/white */`
32			`#define LINUX_LOGO_VGA16 2 /* 16 colors VGA text palette */`
33			`#define LINUX_LOGO_CLUT224 3 /* 224 colors */`
34			`#define LINUX_LOGO_GRAY256 4 /* 256 levels grayscale */`
35
36			`static const char *logo_types[LINUX_LOGO_GRAY256+1] = {`
37			`[LINUX_LOGO_MONO] = "LINUX_LOGO_MONO",`
38			`[LINUX_LOGO_VGA16] = "LINUX_LOGO_VGA16",`
39			`[LINUX_LOGO_CLUT224] = "LINUX_LOGO_CLUT224",`
40			`[LINUX_LOGO_GRAY256] = "LINUX_LOGO_GRAY256"`
41			`};`
42
43			`#define MAX_LINUX_LOGO_COLORS 224`
44
45			`struct color {`
46			`unsigned char red;`
47			`unsigned char green;`
48			`unsigned char blue;`
49			`};`
50
51			`static const struct color clut_vga16[16] = {`
52			`{ 0x00, 0x00, 0x00 },`
53			`{ 0x00, 0x00, 0xaa },`
54			`{ 0x00, 0xaa, 0x00 },`
55			`{ 0x00, 0xaa, 0xaa },`
56			`{ 0xaa, 0x00, 0x00 },`
57			`{ 0xaa, 0x00, 0xaa },`
58			`{ 0xaa, 0x55, 0x00 },`
59			`{ 0xaa, 0xaa, 0xaa },`
60			`{ 0x55, 0x55, 0x55 },`
61			`{ 0x55, 0x55, 0xff },`
62			`{ 0x55, 0xff, 0x55 },`
63			`{ 0x55, 0xff, 0xff },`
64			`{ 0xff, 0x55, 0x55 },`
65			`{ 0xff, 0x55, 0xff },`
66			`{ 0xff, 0xff, 0x55 },`
67			`{ 0xff, 0xff, 0xff },`
68			`};`
69
70
71			`static int logo_type = LINUX_LOGO_CLUT224;`
72			`static unsigned int logo_width;`
73			`static unsigned int logo_height;`
74			`static struct color **logo_data;`
75			`static struct color logo_clut[MAX_LINUX_LOGO_COLORS];`
76			`static unsigned int logo_clutsize;`
77
78			`static void die(const char *fmt, ...)`
79			`__attribute__ ((noreturn)) __attribute ((format (printf, 1, 2)));`
80			`static void usage(void) __attribute ((noreturn));`
81
82
83			`static unsigned int get_number(FILE *fp)`
84			`{`
85			`int c, val;`
86
87			`/* Skip leading whitespace */`
88			`do {`
89			`c = fgetc(fp);`
90			`if (c == EOF)`
91			`die("%s: end of file\n", filename);`
92			`if (c == '#') {`
93			`/* Ignore comments 'till end of line */`
94			`do {`
95			`c = fgetc(fp);`
96			`if (c == EOF)`
97			`die("%s: end of file\n", filename);`
98			`} while (c != '\n');`
99			`}`
100			`} while (isspace(c));`
101
102			`/* Parse decimal number */`
103			`val = 0;`
104			`while (isdigit(c)) {`
105			`val = 10*val+c-'0';`
106			`c = fgetc(fp);`
107			`if (c == EOF)`
108			`die("%s: end of file\n", filename);`
109			`}`
110			`return val;`
111			`}`
112
113			`static unsigned int get_number255(FILE *fp, unsigned int maxval)`
114			`{`
115			`unsigned int val = get_number(fp);`
116			`return (255*val+maxval/2)/maxval;`
117			`}`
118
119			`static void read_image(void)`
120			`{`
121			`FILE *fp;`
122			`unsigned int i, j;`
123			`int magic;`
124			`unsigned int maxval;`
125
126			`/* open image file */`
127			`fp = fopen(filename, "r");`
128			`if (!fp)`
129			`die("Cannot open file %s: %s\n", filename, strerror(errno));`
130
131			`/* check file type and read file header */`
132			`magic = fgetc(fp);`
133			`if (magic != 'P')`
134			`die("%s is not a PNM file\n", filename);`
135			`magic = fgetc(fp);`
136			`switch (magic) {`
137			`case '1':`
138			`case '2':`
139			`case '3':`
140			`/* Plain PBM/PGM/PPM */`
141			`break;`
142
143			`case '4':`
144			`case '5':`
145			`case '6':`
146			`/* Binary PBM/PGM/PPM */`
147			`die("%s: Binary PNM is not supported\n"`
148			`"Use pnmnoraw(1) to convert it to ASCII PNM\n", filename);`
149
150			`default:`
151			`die("%s is not a PNM file\n", filename);`
152			`}`
153			`logo_width = get_number(fp);`
154			`logo_height = get_number(fp);`
155
156			`/* allocate image data */`
157			`logo_data = (struct color *)malloc(logo_heightsizeof(struct color *));`
158			`if (!logo_data)`
159			`die("%s\n", strerror(errno));`
160			`for (i = 0; i < logo_height; i++) {`
161			`logo_data[i] = malloc(logo_width*sizeof(struct color));`
162			`if (!logo_data[i])`
163			`die("%s\n", strerror(errno));`
164			`}`
165
166			`/* read image data */`
167			`switch (magic) {`
168			`case '1':`
169			`/* Plain PBM */`
170			`for (i = 0; i < logo_height; i++)`
171			`for (j = 0; j < logo_width; j++)`
172			`logo_data[i][j].red = logo_data[i][j].green =`
173			`logo_data[i][j].blue = 255*(1-get_number(fp));`
174			`break;`
175
176			`case '2':`
177			`/* Plain PGM */`
178			`maxval = get_number(fp);`
179			`for (i = 0; i < logo_height; i++)`
180			`for (j = 0; j < logo_width; j++)`
181			`logo_data[i][j].red = logo_data[i][j].green =`
182			`logo_data[i][j].blue = get_number255(fp, maxval);`
183			`break;`
184
185			`case '3':`
186			`/* Plain PPM */`
187			`maxval = get_number(fp);`
188			`for (i = 0; i < logo_height; i++)`
189			`for (j = 0; j < logo_width; j++) {`
190			`logo_data[i][j].red = get_number255(fp, maxval);`
191			`logo_data[i][j].green = get_number255(fp, maxval);`
192			`logo_data[i][j].blue = get_number255(fp, maxval);`
193			`}`
194			`break;`
195			`}`
196
197			`/* close file */`
198			`fclose(fp);`
199			`}`
200
201			`static inline int is_black(struct color c)`
202			`{`
203			`return c.red == 0 && c.green == 0 && c.blue == 0;`
204			`}`
205
206			`static inline int is_white(struct color c)`
207			`{`
208			`return c.red == 255 && c.green == 255 && c.blue == 255;`
209			`}`
210
211			`static inline int is_gray(struct color c)`
212			`{`
213			`return c.red == c.green && c.red == c.blue;`
214			`}`
215
216			`static inline int is_equal(struct color c1, struct color c2)`
217			`{`
218			`return c1.red == c2.red && c1.green == c2.green && c1.blue == c2.blue;`
219			`}`
220
221			`static void write_header(void)`
222			`{`
223			`/* open logo file */`
224			`if (outputname) {`
225			`out = fopen(outputname, "w");`
226			`if (!out)`
227			`die("Cannot create file %s: %s\n", outputname, strerror(errno));`
228			`} else {`
229			`out = stdout;`
230			`}`
231
232			`fputs("/*\n", out);`
233			`fputs(" * DO NOT EDIT THIS FILE!\n", out);`
234			`fputs(" *\n", out);`
235			`fprintf(out, " * It was automatically generated from %s\n", filename);`
236			`fputs(" *\n", out);`
237			`fprintf(out, " * Linux logo %s\n", logoname);`
238			`fputs(" */\n\n", out);`
239			`fputs("#include <linux/linux_logo.h>\n\n", out);`
240			`fprintf(out, "static unsigned char %s_data[] __initdata = {\n",`
241			`logoname);`
242			`}`
243
244			`static void write_footer(void)`
245			`{`
246			`fputs("\n};\n\n", out);`
247			`fprintf(out, "struct linux_logo %s __initdata = {\n", logoname);`
248			`fprintf(out, " .type\t= %s,\n", logo_types[logo_type]);`
249			`fprintf(out, " .width\t= %d,\n", logo_width);`
250			`fprintf(out, " .height\t= %d,\n", logo_height);`
251			`if (logo_type == LINUX_LOGO_CLUT224) {`
252			`fprintf(out, " .clutsize\t= %d,\n", logo_clutsize);`
253			`fprintf(out, " .clut\t= %s_clut,\n", logoname);`
254			`}`
255			`fprintf(out, " .data\t= %s_data\n", logoname);`
256			`fputs("};\n\n", out);`
257
258			`/* close logo file */`
259			`if (outputname)`
260			`fclose(out);`
261			`}`
262
263			`static int write_hex_cnt;`
264
265			`static void write_hex(unsigned char byte)`
266			`{`
267			`if (write_hex_cnt % 12)`
268			`fprintf(out, ", 0x%02x", byte);`
269			`else if (write_hex_cnt)`
270			`fprintf(out, ",\n\t0x%02x", byte);`
271			`else`
272			`fprintf(out, "\t0x%02x", byte);`
273			`write_hex_cnt++;`
274			`}`
275
276			`static void write_logo_mono(void)`
277			`{`
278			`unsigned int i, j;`
279			`unsigned char val, bit;`
280
281			`/* validate image */`
282			`for (i = 0; i < logo_height; i++)`
283			`for (j = 0; j < logo_width; j++)`
284			`if (!is_black(logo_data[i][j]) && !is_white(logo_data[i][j]))`
285			`die("Image must be monochrome\n");`
286
287			`/* write file header */`
288			`write_header();`
289
290			`/* write logo data */`
291			`for (i = 0; i < logo_height; i++) {`
292			`for (j = 0; j < logo_width;) {`
293			`for (val = 0, bit = 0x80; bit && j < logo_width; j++, bit >>= 1)`
294			`if (logo_data[i][j].red)`
295			`val \|= bit;`
296			`write_hex(val);`
297			`}`
298			`}`
299
300			`/* write logo structure and file footer */`
301			`write_footer();`
302			`}`
303
304			`static void write_logo_vga16(void)`
305			`{`
306			`unsigned int i, j, k;`
307			`unsigned char val;`
308
309			`/* validate image */`
310			`for (i = 0; i < logo_height; i++)`
311			`for (j = 0; j < logo_width; j++) {`
312			`for (k = 0; k < 16; k++)`
313			`if (is_equal(logo_data[i][j], clut_vga16[k]))`
314			`break;`
315			`if (k == 16)`
316			`die("Image must use the 16 console colors only\n"`
317			`"Use ppmquant(1) -map clut_vga16.ppm to reduce the number "`
318			`"of colors\n");`
319			`}`
320
321			`/* write file header */`
322			`write_header();`
323
324			`/* write logo data */`
325			`for (i = 0; i < logo_height; i++)`
326			`for (j = 0; j < logo_width; j++) {`
327			`for (k = 0; k < 16; k++)`
328			`if (is_equal(logo_data[i][j], clut_vga16[k]))`
329			`break;`
330			`val = k<<4;`
331			`if (++j < logo_width) {`
332			`for (k = 0; k < 16; k++)`
333			`if (is_equal(logo_data[i][j], clut_vga16[k]))`
334			`break;`
335			`val \|= k;`
336			`}`
337			`write_hex(val);`
338			`}`
339
340			`/* write logo structure and file footer */`
341			`write_footer();`
342			`}`
343
344			`static void write_logo_clut224(void)`
345			`{`
346			`unsigned int i, j, k;`
347
348			`/* validate image */`
349			`for (i = 0; i < logo_height; i++)`
350			`for (j = 0; j < logo_width; j++) {`
351			`for (k = 0; k < logo_clutsize; k++)`
352			`if (is_equal(logo_data[i][j], logo_clut[k]))`
353			`break;`
354			`if (k == logo_clutsize) {`
355			`if (logo_clutsize == MAX_LINUX_LOGO_COLORS)`
356			`die("Image has more than %d colors\n"`
357			`"Use ppmquant(1) to reduce the number of colors\n",`
358			`MAX_LINUX_LOGO_COLORS);`
359			`logo_clut[logo_clutsize++] = logo_data[i][j];`
360			`}`
361			`}`
362
363			`/* write file header */`
364			`write_header();`
365
366			`/* write logo data */`
367			`for (i = 0; i < logo_height; i++)`
368			`for (j = 0; j < logo_width; j++) {`
369			`for (k = 0; k < logo_clutsize; k++)`
370			`if (is_equal(logo_data[i][j], logo_clut[k]))`
371			`break;`
372			`write_hex(k+32);`
373			`}`
374			`fputs("\n};\n\n", out);`
375
376			`/* write logo clut */`
377			`fprintf(out, "static unsigned char %s_clut[] __initdata = {\n",`
378			`logoname);`
379			`write_hex_cnt = 0;`
380			`for (i = 0; i < logo_clutsize; i++) {`
381			`write_hex(logo_clut[i].red);`
382			`write_hex(logo_clut[i].green);`
383			`write_hex(logo_clut[i].blue);`
384			`}`
385
386			`/* write logo structure and file footer */`
387			`write_footer();`
388			`}`
389
390			`static void write_logo_gray256(void)`
391			`{`
392			`unsigned int i, j;`
393
394			`/* validate image */`
395			`for (i = 0; i < logo_height; i++)`
396			`for (j = 0; j < logo_width; j++)`
397			`if (!is_gray(logo_data[i][j]))`
398			`die("Image must be grayscale\n");`
399
400			`/* write file header */`
401			`write_header();`
402
403			`/* write logo data */`
404			`for (i = 0; i < logo_height; i++)`
405			`for (j = 0; j < logo_width; j++)`
406			`write_hex(logo_data[i][j].red);`
407
408			`/* write logo structure and file footer */`
409			`write_footer();`
410			`}`
411
412			`static void die(const char *fmt, ...)`
413			`{`
414			`va_list ap;`
415
416			`va_start(ap, fmt);`
417			`vfprintf(stderr, fmt, ap);`
418			`va_end(ap);`
419
420			`exit(1);`
421			`}`
422
423			`static void usage(void)`
424			`{`
425			`die("\n"`
426			`"Usage: %s [options] <filename>\n"`
427			`"\n"`
428			`"Valid options:\n"`
429			`" -h : display this usage information\n"`
430			`" -n <name> : specify logo name (default: linux_logo)\n"`
431			`" -o <output> : output to file <output> instead of stdout\n"`
432			`" -t <type> : specify logo type, one of\n"`
433			`" mono : monochrome black/white\n"`
434			`" vga16 : 16 colors VGA text palette\n"`
435			`" clut224 : 224 colors (default)\n"`
436			`" gray256 : 256 levels grayscale\n"`
437			`"\n", programname);`
438			`}`
439
440			`int main(int argc, char *argv[])`
441			`{`
442			`int opt;`
443
444			`programname = argv[0];`
445
446			`opterr = 0;`
447			`while (1) {`
448			`opt = getopt(argc, argv, "hn:o:t:");`
449			`if (opt == -1)`
450			`break;`
451
452			`switch (opt) {`
453			`case 'h':`
454			`usage();`
455			`break;`
456
457			`case 'n':`
458			`logoname = optarg;`
459			`break;`
460
461			`case 'o':`
462			`outputname = optarg;`
463			`break;`
464
465			`case 't':`
466			`if (!strcmp(optarg, "mono"))`
467			`logo_type = LINUX_LOGO_MONO;`
468			`else if (!strcmp(optarg, "vga16"))`
469			`logo_type = LINUX_LOGO_VGA16;`
470			`else if (!strcmp(optarg, "clut224"))`
471			`logo_type = LINUX_LOGO_CLUT224;`
472			`else if (!strcmp(optarg, "gray256"))`
473			`logo_type = LINUX_LOGO_GRAY256;`
474			`else`
475			`usage();`
476			`break;`
477
478			`default:`
479			`usage();`
480			`break;`
481			`}`
482			`}`
483			`if (optind != argc-1)`
484			`usage();`
485
486			`filename = argv[optind];`
487
488			`read_image();`
489			`switch (logo_type) {`
490			`case LINUX_LOGO_MONO:`
491			`write_logo_mono();`
492			`break;`
493
494			`case LINUX_LOGO_VGA16:`
495			`write_logo_vga16();`
496			`break;`
497
498			`case LINUX_LOGO_CLUT224:`
499			`write_logo_clut224();`
500			`break;`
501
502			`case LINUX_LOGO_GRAY256:`
503			`write_logo_gray256();`
504			`break;`
505			`}`
506			`exit(0);`
507			`}`
508