提交 044b14b5 编写于 作者: N Nikita Romanyuk 提交者: Helge Deller

drivers: video: logo: fix code style issues in pnmtologo.c

Signed-off-by: NNikita Romanyuk <ufh8945@gmail.com>
Signed-off-by: NHelge Deller <deller@gmx.de>
上级 eeac8ede
/* /*
* Convert a logo in ASCII PNM format to C source suitable for inclusion in * Convert a logo in ASCII PNM format to C source suitable for inclusion in
* the Linux kernel * the Linux kernel
...@@ -34,37 +33,37 @@ static FILE *out; ...@@ -34,37 +33,37 @@ static FILE *out;
#define LINUX_LOGO_GRAY256 4 /* 256 levels grayscale */ #define LINUX_LOGO_GRAY256 4 /* 256 levels grayscale */
static const char *logo_types[LINUX_LOGO_GRAY256+1] = { static const char *logo_types[LINUX_LOGO_GRAY256+1] = {
[LINUX_LOGO_MONO] = "LINUX_LOGO_MONO", [LINUX_LOGO_MONO] = "LINUX_LOGO_MONO",
[LINUX_LOGO_VGA16] = "LINUX_LOGO_VGA16", [LINUX_LOGO_VGA16] = "LINUX_LOGO_VGA16",
[LINUX_LOGO_CLUT224] = "LINUX_LOGO_CLUT224", [LINUX_LOGO_CLUT224] = "LINUX_LOGO_CLUT224",
[LINUX_LOGO_GRAY256] = "LINUX_LOGO_GRAY256" [LINUX_LOGO_GRAY256] = "LINUX_LOGO_GRAY256"
}; };
#define MAX_LINUX_LOGO_COLORS 224 #define MAX_LINUX_LOGO_COLORS 224
struct color { struct color {
unsigned char red; unsigned char red;
unsigned char green; unsigned char green;
unsigned char blue; unsigned char blue;
}; };
static const struct color clut_vga16[16] = { static const struct color clut_vga16[16] = {
{ 0x00, 0x00, 0x00 }, { 0x00, 0x00, 0x00 },
{ 0x00, 0x00, 0xaa }, { 0x00, 0x00, 0xaa },
{ 0x00, 0xaa, 0x00 }, { 0x00, 0xaa, 0x00 },
{ 0x00, 0xaa, 0xaa }, { 0x00, 0xaa, 0xaa },
{ 0xaa, 0x00, 0x00 }, { 0xaa, 0x00, 0x00 },
{ 0xaa, 0x00, 0xaa }, { 0xaa, 0x00, 0xaa },
{ 0xaa, 0x55, 0x00 }, { 0xaa, 0x55, 0x00 },
{ 0xaa, 0xaa, 0xaa }, { 0xaa, 0xaa, 0xaa },
{ 0x55, 0x55, 0x55 }, { 0x55, 0x55, 0x55 },
{ 0x55, 0x55, 0xff }, { 0x55, 0x55, 0xff },
{ 0x55, 0xff, 0x55 }, { 0x55, 0xff, 0x55 },
{ 0x55, 0xff, 0xff }, { 0x55, 0xff, 0xff },
{ 0xff, 0x55, 0x55 }, { 0xff, 0x55, 0x55 },
{ 0xff, 0x55, 0xff }, { 0xff, 0x55, 0xff },
{ 0xff, 0xff, 0x55 }, { 0xff, 0xff, 0x55 },
{ 0xff, 0xff, 0xff }, { 0xff, 0xff, 0xff },
}; };
...@@ -77,438 +76,440 @@ static unsigned int logo_clutsize; ...@@ -77,438 +76,440 @@ static unsigned int logo_clutsize;
static int is_plain_pbm = 0; static int is_plain_pbm = 0;
static void die(const char *fmt, ...) static void die(const char *fmt, ...)
__attribute__ ((noreturn)) __attribute ((format (printf, 1, 2))); __attribute__((noreturn)) __attribute((format (printf, 1, 2)));
static void usage(void) __attribute ((noreturn)); static void usage(void) __attribute((noreturn));
static unsigned int get_number(FILE *fp) static unsigned int get_number(FILE *fp)
{ {
int c, val; int c, val;
/* Skip leading whitespace */ /* Skip leading whitespace */
do { do {
c = fgetc(fp); c = fgetc(fp);
if (c == EOF) if (c == EOF)
die("%s: end of file\n", filename); die("%s: end of file\n", filename);
if (c == '#') { if (c == '#') {
/* Ignore comments 'till end of line */ /* Ignore comments 'till end of line */
do { 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); c = fgetc(fp);
if (c == EOF) if (c == EOF)
die("%s: end of file\n", filename); die("%s: end of file\n", filename);
} while (c != '\n');
} }
} while (isspace(c)); return val;
/* 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) static unsigned int get_number255(FILE *fp, unsigned int maxval)
{ {
unsigned int val = get_number(fp); unsigned int val = get_number(fp);
return (255*val+maxval/2)/maxval;
return (255*val+maxval/2)/maxval;
} }
static void read_image(void) static void read_image(void)
{ {
FILE *fp; FILE *fp;
unsigned int i, j; unsigned int i, j;
int magic; int magic;
unsigned int maxval; unsigned int maxval;
/* open image file */ /* open image file */
fp = fopen(filename, "r"); fp = fopen(filename, "r");
if (!fp) if (!fp)
die("Cannot open file %s: %s\n", filename, strerror(errno)); die("Cannot open file %s: %s\n", filename, strerror(errno));
/* check file type and read file header */ /* check file type and read file header */
magic = fgetc(fp); magic = fgetc(fp);
if (magic != 'P') if (magic != 'P')
die("%s is not a PNM file\n", filename); die("%s is not a PNM file\n", filename);
magic = fgetc(fp); magic = fgetc(fp);
switch (magic) { switch (magic) {
case '1': case '1':
case '2': case '2':
case '3': case '3':
/* Plain PBM/PGM/PPM */ /* Plain PBM/PGM/PPM */
break; break;
case '4': case '4':
case '5': case '5':
case '6': case '6':
/* Binary PBM/PGM/PPM */ /* Binary PBM/PGM/PPM */
die("%s: Binary PNM is not supported\n" die("%s: Binary PNM is not supported\n"
"Use pnmnoraw(1) to convert it to ASCII PNM\n", filename); "Use pnmnoraw(1) to convert it to ASCII PNM\n", filename);
default: default:
die("%s is not a PNM file\n", filename); die("%s is not a PNM file\n", filename);
} }
logo_width = get_number(fp); logo_width = get_number(fp);
logo_height = get_number(fp); logo_height = get_number(fp);
/* allocate image data */ /* allocate image data */
logo_data = (struct color **)malloc(logo_height*sizeof(struct color *)); logo_data = (struct color **)malloc(logo_height*sizeof(struct color *));
if (!logo_data) if (!logo_data)
die("%s\n", strerror(errno)); die("%s\n", strerror(errno));
for (i = 0; i < logo_height; i++) { for (i = 0; i < logo_height; i++) {
logo_data[i] = malloc(logo_width*sizeof(struct color)); logo_data[i] = malloc(logo_width*sizeof(struct color));
if (!logo_data[i]) if (!logo_data[i])
die("%s\n", strerror(errno)); die("%s\n", strerror(errno));
} }
/* read image data */ /* read image data */
switch (magic) { switch (magic) {
case '1': case '1':
/* Plain PBM */ /* Plain PBM */
is_plain_pbm = 1; is_plain_pbm = 1;
for (i = 0; i < logo_height; i++) for (i = 0; i < logo_height; i++)
for (j = 0; j < logo_width; j++) for (j = 0; j < logo_width; j++)
logo_data[i][j].red = logo_data[i][j].green = logo_data[i][j].red = logo_data[i][j].green =
logo_data[i][j].blue = 255*(1-get_number(fp)); logo_data[i][j].blue = 255*(1-get_number(fp));
break; break;
case '2': case '2':
/* Plain PGM */ /* Plain PGM */
maxval = get_number(fp); maxval = get_number(fp);
for (i = 0; i < logo_height; i++) for (i = 0; i < logo_height; i++)
for (j = 0; j < logo_width; j++) for (j = 0; j < logo_width; j++)
logo_data[i][j].red = logo_data[i][j].green = logo_data[i][j].red = logo_data[i][j].green =
logo_data[i][j].blue = get_number255(fp, maxval); logo_data[i][j].blue = get_number255(fp, maxval);
break; break;
case '3': case '3':
/* Plain PPM */ /* Plain PPM */
maxval = get_number(fp); maxval = get_number(fp);
for (i = 0; i < logo_height; i++) for (i = 0; i < logo_height; i++)
for (j = 0; j < logo_width; j++) { for (j = 0; j < logo_width; j++) {
logo_data[i][j].red = get_number255(fp, maxval); logo_data[i][j].red = get_number255(fp, maxval);
logo_data[i][j].green = get_number255(fp, maxval); logo_data[i][j].green = get_number255(fp, maxval);
logo_data[i][j].blue = get_number255(fp, maxval); logo_data[i][j].blue = get_number255(fp, maxval);
} }
break; break;
} }
/* close file */ /* close file */
fclose(fp); fclose(fp);
} }
static inline int is_black(struct color c) static inline int is_black(struct color c)
{ {
return c.red == 0 && c.green == 0 && c.blue == 0; return c.red == 0 && c.green == 0 && c.blue == 0;
} }
static inline int is_white(struct color c) static inline int is_white(struct color c)
{ {
return c.red == 255 && c.green == 255 && c.blue == 255; return c.red == 255 && c.green == 255 && c.blue == 255;
} }
static inline int is_gray(struct color c) static inline int is_gray(struct color c)
{ {
return c.red == c.green && c.red == c.blue; return c.red == c.green && c.red == c.blue;
} }
static inline int is_equal(struct color c1, struct color c2) static inline int is_equal(struct color c1, struct color c2)
{ {
return c1.red == c2.red && c1.green == c2.green && c1.blue == c2.blue; return c1.red == c2.red && c1.green == c2.green && c1.blue == c2.blue;
} }
static void write_header(void) static void write_header(void)
{ {
/* open logo file */ /* open logo file */
if (outputname) { if (outputname) {
out = fopen(outputname, "w"); out = fopen(outputname, "w");
if (!out) if (!out)
die("Cannot create file %s: %s\n", outputname, strerror(errno)); die("Cannot create file %s: %s\n", outputname, strerror(errno));
} else { } else {
out = stdout; out = stdout;
} }
fputs("/*\n", out); fputs("/*\n", out);
fputs(" * DO NOT EDIT THIS FILE!\n", out); fputs(" * DO NOT EDIT THIS FILE!\n", out);
fputs(" *\n", out); fputs(" *\n", out);
fprintf(out, " * It was automatically generated from %s\n", filename); fprintf(out, " * It was automatically generated from %s\n", filename);
fputs(" *\n", out); fputs(" *\n", out);
fprintf(out, " * Linux logo %s\n", logoname); fprintf(out, " * Linux logo %s\n", logoname);
fputs(" */\n\n", out); fputs(" */\n\n", out);
fputs("#include <linux/linux_logo.h>\n\n", out); fputs("#include <linux/linux_logo.h>\n\n", out);
fprintf(out, "static unsigned char %s_data[] __initdata = {\n", fprintf(out, "static unsigned char %s_data[] __initdata = {\n",
logoname); logoname);
} }
static void write_footer(void) static void write_footer(void)
{ {
fputs("\n};\n\n", out); fputs("\n};\n\n", out);
fprintf(out, "const struct linux_logo %s __initconst = {\n", logoname); 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.type\t\t= %s,\n", logo_types[logo_type]);
fprintf(out, "\t.width\t\t= %d,\n", logo_width); fprintf(out, "\t.width\t\t= %d,\n", logo_width);
fprintf(out, "\t.height\t\t= %d,\n", logo_height); fprintf(out, "\t.height\t\t= %d,\n", logo_height);
if (logo_type == LINUX_LOGO_CLUT224) { if (logo_type == LINUX_LOGO_CLUT224) {
fprintf(out, "\t.clutsize\t= %d,\n", logo_clutsize); fprintf(out, "\t.clutsize\t= %d,\n", logo_clutsize);
fprintf(out, "\t.clut\t\t= %s_clut,\n", logoname); fprintf(out, "\t.clut\t\t= %s_clut,\n", logoname);
} }
fprintf(out, "\t.data\t\t= %s_data\n", logoname); fprintf(out, "\t.data\t\t= %s_data\n", logoname);
fputs("};\n\n", out); fputs("};\n\n", out);
/* close logo file */ /* close logo file */
if (outputname) if (outputname)
fclose(out); fclose(out);
} }
static int write_hex_cnt; static int write_hex_cnt;
static void write_hex(unsigned char byte) static void write_hex(unsigned char byte)
{ {
if (write_hex_cnt % 12) if (write_hex_cnt % 12)
fprintf(out, ", 0x%02x", byte); fprintf(out, ", 0x%02x", byte);
else if (write_hex_cnt) else if (write_hex_cnt)
fprintf(out, ",\n\t0x%02x", byte); fprintf(out, ",\n\t0x%02x", byte);
else else
fprintf(out, "\t0x%02x", byte); fprintf(out, "\t0x%02x", byte);
write_hex_cnt++; write_hex_cnt++;
} }
static void write_logo_mono(void) static void write_logo_mono(void)
{ {
unsigned int i, j; unsigned int i, j;
unsigned char val, bit; unsigned char val, bit;
/* validate image */ /* validate image */
for (i = 0; i < logo_height; i++) for (i = 0; i < logo_height; i++)
for (j = 0; j < logo_width; j++) for (j = 0; j < logo_width; j++)
if (!is_black(logo_data[i][j]) && !is_white(logo_data[i][j])) if (!is_black(logo_data[i][j]) && !is_white(logo_data[i][j]))
die("Image must be monochrome\n"); die("Image must be monochrome\n");
/* write file header */ /* write file header */
write_header(); write_header();
/* write logo data */ /* write logo data */
for (i = 0; i < logo_height; i++) { for (i = 0; i < logo_height; i++) {
for (j = 0; j < logo_width;) { for (j = 0; j < logo_width;) {
for (val = 0, bit = 0x80; bit && j < logo_width; j++, bit >>= 1) for (val = 0, bit = 0x80; bit && j < logo_width; j++, bit >>= 1)
if (logo_data[i][j].red) if (logo_data[i][j].red)
val |= bit; val |= bit;
write_hex(val); write_hex(val);
}
} }
}
/* write logo structure and file footer */ /* write logo structure and file footer */
write_footer(); write_footer();
} }
static void write_logo_vga16(void) static void write_logo_vga16(void)
{ {
unsigned int i, j, k; unsigned int i, j, k;
unsigned char val; 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 */ /* validate image */
write_header(); for (i = 0; i < logo_height; i++)
for (j = 0; j < logo_width; j++) {
/* write logo data */ for (k = 0; k < 16; k++)
for (i = 0; i < logo_height; i++) if (is_equal(logo_data[i][j], clut_vga16[k]))
for (j = 0; j < logo_width; j++) { break;
for (k = 0; k < 16; k++) if (k == 16)
if (is_equal(logo_data[i][j], clut_vga16[k])) die("Image must use the 16 console colors only\n"
break; "Use ppmquant(1) -map clut_vga16.ppm to reduce the number "
val = k<<4; "of colors\n");
if (++j < logo_width) { }
for (k = 0; k < 16; k++)
if (is_equal(logo_data[i][j], clut_vga16[k])) /* write file header */
break; write_header();
val |= k;
}
write_hex(val);
}
/* write logo structure and file footer */ /* write logo data */
write_footer(); 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) static void write_logo_clut224(void)
{ {
unsigned int i, j, k; 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 */ /* validate image */
write_header(); 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 logo data */ /* write file header */
for (i = 0; i < logo_height; i++) write_header();
for (j = 0; j < logo_width; j++) {
for (k = 0; k < logo_clutsize; k++) /* write logo data */
if (is_equal(logo_data[i][j], logo_clut[k])) for (i = 0; i < logo_height; i++)
break; for (j = 0; j < logo_width; j++) {
write_hex(k+32); 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);
} }
fputs("\n};\n\n", out);
/* write logo structure and file footer */
/* write logo clut */ write_footer();
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) static void write_logo_gray256(void)
{ {
unsigned int i, j; unsigned int i, j;
/* validate image */ /* validate image */
for (i = 0; i < logo_height; i++) for (i = 0; i < logo_height; i++)
for (j = 0; j < logo_width; j++) for (j = 0; j < logo_width; j++)
if (!is_gray(logo_data[i][j])) if (!is_gray(logo_data[i][j]))
die("Image must be grayscale\n"); die("Image must be grayscale\n");
/* write file header */ /* write file header */
write_header(); write_header();
/* write logo data */ /* write logo data */
for (i = 0; i < logo_height; i++) for (i = 0; i < logo_height; i++)
for (j = 0; j < logo_width; j++) for (j = 0; j < logo_width; j++)
write_hex(logo_data[i][j].red); write_hex(logo_data[i][j].red);
/* write logo structure and file footer */ /* write logo structure and file footer */
write_footer(); write_footer();
} }
static void die(const char *fmt, ...) static void die(const char *fmt, ...)
{ {
va_list ap; va_list ap;
va_start(ap, fmt); va_start(ap, fmt);
vfprintf(stderr, fmt, ap); vfprintf(stderr, fmt, ap);
va_end(ap); va_end(ap);
exit(1); exit(1);
} }
static void usage(void) static void usage(void)
{ {
die("\n" die("\n"
"Usage: %s [options] <filename>\n" "Usage: %s [options] <filename>\n"
"\n" "\n"
"Valid options:\n" "Valid options:\n"
" -h : display this usage information\n" " -h : display this usage information\n"
" -n <name> : specify logo name (default: linux_logo)\n" " -n <name> : specify logo name (default: linux_logo)\n"
" -o <output> : output to file <output> instead of stdout\n" " -o <output> : output to file <output> instead of stdout\n"
" -t <type> : specify logo type, one of\n" " -t <type> : specify logo type, one of\n"
" mono : monochrome black/white\n" " mono : monochrome black/white\n"
" vga16 : 16 colors VGA text palette\n" " vga16 : 16 colors VGA text palette\n"
" clut224 : 224 colors (default)\n" " clut224 : 224 colors (default)\n"
" gray256 : 256 levels grayscale\n" " gray256 : 256 levels grayscale\n"
"\n", programname); "\n", programname);
} }
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
int opt; int opt;
programname = argv[0]; programname = argv[0];
opterr = 0; opterr = 0;
while (1) { while (1) {
opt = getopt(argc, argv, "hn:o:t:"); opt = getopt(argc, argv, "hn:o:t:");
if (opt == -1) if (opt == -1)
break; break;
switch (opt) { switch (opt) {
case 'h': case 'h':
usage(); usage();
break; break;
case 'n': case 'n':
logoname = optarg; logoname = optarg;
break; break;
case 'o': case 'o':
outputname = optarg; outputname = optarg;
break; break;
case 't': case 't':
if (!strcmp(optarg, "mono")) if (!strcmp(optarg, "mono"))
logo_type = LINUX_LOGO_MONO; logo_type = LINUX_LOGO_MONO;
else if (!strcmp(optarg, "vga16")) else if (!strcmp(optarg, "vga16"))
logo_type = LINUX_LOGO_VGA16; logo_type = LINUX_LOGO_VGA16;
else if (!strcmp(optarg, "clut224")) else if (!strcmp(optarg, "clut224"))
logo_type = LINUX_LOGO_CLUT224; logo_type = LINUX_LOGO_CLUT224;
else if (!strcmp(optarg, "gray256")) else if (!strcmp(optarg, "gray256"))
logo_type = LINUX_LOGO_GRAY256; logo_type = LINUX_LOGO_GRAY256;
else else
usage(); usage();
break; break;
default: default:
usage(); usage();
break; break;
}
} }
} if (optind != argc-1)
if (optind != argc-1) usage();
usage();
filename = argv[optind]; filename = argv[optind];
read_image(); read_image();
switch (logo_type) { switch (logo_type) {
case LINUX_LOGO_MONO: case LINUX_LOGO_MONO:
write_logo_mono(); write_logo_mono();
break; break;
case LINUX_LOGO_VGA16: case LINUX_LOGO_VGA16:
write_logo_vga16(); write_logo_vga16();
break; break;
case LINUX_LOGO_CLUT224: case LINUX_LOGO_CLUT224:
write_logo_clut224(); write_logo_clut224();
break; break;
case LINUX_LOGO_GRAY256: case LINUX_LOGO_GRAY256:
write_logo_gray256(); write_logo_gray256();
break; break;
} }
exit(0); exit(0);
} }
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