From: eddie Date: Wed, 9 Apr 2014 06:58:35 +0000 (+0800) Subject: add pnmtodtsi X-Git-Tag: firefly_0821_release~5596 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d6cb370f193407de776301673428aeeda3fe0359;p=firefly-linux-kernel-4.4.55.git add pnmtodtsi --- diff --git a/scripts/Makefile b/scripts/Makefile old mode 100644 new mode 100755 index 01e7adb838d9..6270c0b494c5 --- a/scripts/Makefile +++ b/scripts/Makefile @@ -12,6 +12,7 @@ HOST_EXTRACFLAGS += -I$(srctree)/tools/include hostprogs-$(CONFIG_KALLSYMS) += kallsyms hostprogs-$(CONFIG_LOGO) += pnmtologo +hostprogs-$(CONFIG_LOGO) += pnmtodtsi hostprogs-$(CONFIG_VT) += conmakehash hostprogs-$(CONFIG_IKCONFIG) += bin2c hostprogs-$(BUILD_C_RECORDMCOUNT) += recordmcount diff --git a/scripts/pnmtodtsi.c b/scripts/pnmtodtsi.c new file mode 100755 index 000000000000..9135daf04055 --- /dev/null +++ b/scripts/pnmtodtsi.c @@ -0,0 +1,402 @@ + +/* + * Convert a logo in ASCII PNM format to C source suitable for inclusion in + * the Linux kernel + * + * (C) Copyright 2001-2003 by Geert Uytterhoeven + * + * -------------------------------------------------------------------------- + * + * 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 +#include +#include +#include +#include +#include +#include + + +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] \n" + "\n" + "Valid options:\n" + " -h : display this usage information\n" + " -n : specify logo name (default: linux_logo)\n" + " -o : output to file instead of stdout\n" + " -t : 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); +} +