From 78a20a012ecea857e438b1f9e8091acb290bd0f5 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Wed, 21 Aug 2019 13:12:37 +0900
Subject: video/logo: move pnmtologo tool to drivers/video/logo/ from scripts/
Git-commit: 78a20a012ecea857e438b1f9e8091acb290bd0f5
Patch-mainline: v5.5-rc1
References: bsc#1152489
This tool is only used by drivers/video/logo/Makefile. No reason to
keep it in scripts/.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/video/logo/.gitignore | 1 +
drivers/video/logo/Makefile | 10 +-
drivers/video/logo/pnmtologo.c | 514 +++++++++++++++++++++++++++++++++
scripts/.gitignore | 1 -
scripts/Makefile | 2 -
scripts/pnmtologo.c | 514 ---------------------------------
6 files changed, 520 insertions(+), 522 deletions(-)
create mode 100644 drivers/video/logo/pnmtologo.c
delete mode 100644 scripts/pnmtologo.c
diff --git a/drivers/video/logo/.gitignore b/drivers/video/logo/.gitignore
index e48355f538fa..9dda1b26b2e4 100644
--- a/drivers/video/logo/.gitignore
+++ b/drivers/video/logo/.gitignore
@@ -5,3 +5,4 @@
*_vga16.c
*_clut224.c
*_gray256.c
+pnmtologo
diff --git a/drivers/video/logo/Makefile b/drivers/video/logo/Makefile
index 7d672d40bf01..bcda657493a4 100644
--- a/drivers/video/logo/Makefile
+++ b/drivers/video/logo/Makefile
@@ -18,19 +18,19 @@ obj-$(CONFIG_SPU_BASE) += logo_spe_clut224.o
# How to generate logo's
-pnmtologo := scripts/pnmtologo
+hostprogs-y := pnmtologo
# Create commands like "pnmtologo -t mono -n logo_mac_mono -o ..."
quiet_cmd_logo = LOGO $@
- cmd_logo = $(pnmtologo) -t $(lastword $(subst _, ,$*)) -n $* -o $@ $<
+ cmd_logo = $(obj)/pnmtologo -t $(lastword $(subst _, ,$*)) -n $* -o $@ $<
-$(obj)/%.c: $(src)/%.pbm $(pnmtologo) FORCE
+$(obj)/%.c: $(src)/%.pbm $(obj)/pnmtologo FORCE
$(call if_changed,logo)
-$(obj)/%.c: $(src)/%.ppm $(pnmtologo) FORCE
+$(obj)/%.c: $(src)/%.ppm $(obj)/pnmtologo FORCE
$(call if_changed,logo)
-$(obj)/%.c: $(src)/%.pgm $(pnmtologo) FORCE
+$(obj)/%.c: $(src)/%.pgm $(obj)/pnmtologo FORCE
$(call if_changed,logo)
# generated C files
diff --git a/drivers/video/logo/pnmtologo.c b/drivers/video/logo/pnmtologo.c
new file mode 100644
index 000000000000..4718d7895f0b
--- /dev/null
+++ b/drivers/video/logo/pnmtologo.c
@@ -0,0 +1,514 @@
+
+/*
+ * 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);
+}
diff --git a/scripts/.gitignore b/scripts/.gitignore
index 17f8cef88fa8..4aa1806c59c2 100644
--- a/scripts/.gitignore
+++ b/scripts/.gitignore
@@ -4,7 +4,6 @@
bin2c
conmakehash
kallsyms
-pnmtologo
unifdef
recordmcount
sortextable
diff --git a/scripts/Makefile b/scripts/Makefile
index 3e86b300f5a1..00c47901cb06 100644
--- a/scripts/Makefile
+++ b/scripts/Makefile
@@ -4,7 +4,6 @@
# the kernel for the build process.
# ---------------------------------------------------------------------------
# kallsyms: Find all symbols in vmlinux
-# pnmttologo: Convert pnm files to logo files
# conmakehash: Create chartable
# conmakehash: Create arrays for initializing the kernel console tables
@@ -12,7 +11,6 @@ HOST_EXTRACFLAGS += -I$(srctree)/tools/include
hostprogs-$(CONFIG_BUILD_BIN2C) += bin2c
hostprogs-$(CONFIG_KALLSYMS) += kallsyms
-hostprogs-$(CONFIG_LOGO) += pnmtologo
hostprogs-$(CONFIG_VT) += conmakehash
hostprogs-$(BUILD_C_RECORDMCOUNT) += recordmcount
hostprogs-$(CONFIG_BUILDTIME_EXTABLE_SORT) += sortextable
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);
-}
--
2.28.0