-#include <stdio.h>
-#include <stdlib.h>
-
-#if defined(__linux__)
-#include <stdint.h>
-#else
-#ifdef __CYGWIN__
-#include "elf.h"
-#else
-#include <inttypes.h>
-#endif
-#endif
+#include "compiler.h"
+
+enum {
+ MODE_GEN_INFO,
+ MODE_GEN_DATA
+};
typedef struct bitmap_s { /* bitmap description */
uint16_t width;
#define DEFAULT_CMAP_SIZE 16 /* size of default color map */
+void usage(const char *prog)
+{
+ fprintf(stderr, "Usage: %s [--gen-info|--gen-data] file\n", prog);
+}
+
/*
* Neutralize little endians.
*/
fgetc (fp);
}
+__attribute__ ((__noreturn__))
+int error (char * msg, FILE *fp)
+{
+ fprintf (stderr, "ERROR: %s\n", msg);
+
+ fclose (fp);
+
+ exit (EXIT_FAILURE);
+}
+
+void gen_info(bitmap_t *b, uint16_t n_colors)
+{
+ printf("/*\n"
+ " * Automatically generated by \"tools/bmp_logo\"\n"
+ " *\n"
+ " * DO NOT EDIT\n"
+ " *\n"
+ " */\n\n\n"
+ "#ifndef __BMP_LOGO_H__\n"
+ "#define __BMP_LOGO_H__\n\n"
+ "#define BMP_LOGO_WIDTH\t\t%d\n"
+ "#define BMP_LOGO_HEIGHT\t\t%d\n"
+ "#define BMP_LOGO_COLORS\t\t%d\n"
+ "#define BMP_LOGO_OFFSET\t\t%d\n\n"
+ "extern unsigned short bmp_logo_palette[];\n"
+ "extern unsigned char bmp_logo_bitmap[];\n\n"
+ "#endif /* __BMP_LOGO_H__ */\n",
+ b->width, b->height, n_colors,
+ DEFAULT_CMAP_SIZE);
+}
+
int main (int argc, char *argv[])
{
- int i, x;
+ int mode, i, x;
FILE *fp;
bitmap_t bmp;
bitmap_t *b = &bmp;
- uint16_t n_colors;
+ uint16_t data_offset, n_colors;
- if (argc < 2) {
- fprintf (stderr, "Usage: %s file\n", argv[0]);
+ if (argc < 3) {
+ usage(argv[0]);
exit (EXIT_FAILURE);
}
- if ((fp = fopen (argv[1], "rb")) == NULL) {
- perror (argv[1]);
- exit (EXIT_FAILURE);
+ if (!strcmp(argv[1], "--gen-info"))
+ mode = MODE_GEN_INFO;
+ else if (!strcmp(argv[1], "--gen-data"))
+ mode = MODE_GEN_DATA;
+ else {
+ usage(argv[0]);
+ exit(EXIT_FAILURE);
}
- if (fgetc (fp) != 'B' || fgetc (fp) != 'M') {
- fprintf (stderr, "%s is not a bitmap file.\n", argv[1]);
+ fp = fopen(argv[2], "rb");
+ if (!fp) {
+ perror(argv[2]);
exit (EXIT_FAILURE);
}
+ if (fgetc (fp) != 'B' || fgetc (fp) != 'M')
+ error ("Input file is not a bitmap", fp);
+
/*
* read width and height of the image, and the number of colors used;
* ignore the rest
*/
- skip_bytes (fp, 16);
- fread (&b->width, sizeof (uint16_t), 1, fp);
+ skip_bytes (fp, 8);
+ if (fread (&data_offset, sizeof (uint16_t), 1, fp) != 1)
+ error ("Couldn't read bitmap data offset", fp);
+ skip_bytes (fp, 6);
+ if (fread (&b->width, sizeof (uint16_t), 1, fp) != 1)
+ error ("Couldn't read bitmap width", fp);
skip_bytes (fp, 2);
- fread (&b->height, sizeof (uint16_t), 1, fp);
+ if (fread (&b->height, sizeof (uint16_t), 1, fp) != 1)
+ error ("Couldn't read bitmap height", fp);
skip_bytes (fp, 22);
- fread (&n_colors, sizeof (uint16_t), 1, fp);
+ if (fread (&n_colors, sizeof (uint16_t), 1, fp) != 1)
+ error ("Couldn't read bitmap colors", fp);
skip_bytes (fp, 6);
/*
* Repair endianess.
*/
+ data_offset = le_short(data_offset);
b->width = le_short(b->width);
b->height = le_short(b->height);
n_colors = le_short(n_colors);
n_colors = 256 - DEFAULT_CMAP_SIZE;
}
- printf ("/*\n"
+ if (mode == MODE_GEN_INFO) {
+ gen_info(b, n_colors);
+ goto out;
+ }
+
+ printf("/*\n"
" * Automatically generated by \"tools/bmp_logo\"\n"
" *\n"
" * DO NOT EDIT\n"
" *\n"
" */\n\n\n"
- "#ifndef __BMP_LOGO_H__\n"
- "#define __BMP_LOGO_H__\n\n"
- "#define BMP_LOGO_WIDTH\t\t%d\n"
- "#define BMP_LOGO_HEIGHT\t\t%d\n"
- "#define BMP_LOGO_COLORS\t\t%d\n"
- "#define BMP_LOGO_OFFSET\t\t%d\n"
- "\n",
- b->width, b->height, n_colors,
- DEFAULT_CMAP_SIZE);
+ "#ifndef __BMP_LOGO_DATA_H__\n"
+ "#define __BMP_LOGO_DATA_H__\n\n");
/* allocate memory */
- if ((b->data = (uint8_t *)malloc(b->width * b->height)) == NULL) {
- fclose (fp);
- printf ("Error allocating memory for file %s.\n", argv[1]);
- exit (EXIT_FAILURE);
- }
+ if ((b->data = (uint8_t *)malloc(b->width * b->height)) == NULL)
+ error ("Error allocating memory for file", fp);
/* read and print the palette information */
- printf ("unsigned short bmp_logo_palette[] = {\n");
+ printf("unsigned short bmp_logo_palette[] = {\n");
for (i=0; i<n_colors; ++i) {
b->palette[(int)(i*3+2)] = fgetc(fp);
b->palette[(int)(i*3+0)] = fgetc(fp);
x=fgetc(fp);
-#if 0
- if ((i%4) == 0)
- putchar ('\t');
- printf ("0x%02X, 0x%02X, 0x%02X,%s",
- b->palette[(int)(i*3+0)],
- b->palette[(int)(i*3+1)],
- b->palette[(int)(i*3+2)],
- ((i%4) == 3) ? "\n" : " "
- );
-#else
- if ((i%8) == 0)
- putchar ('\t');
- printf ("0x0%X%X%X,%s",
+ printf ("%s0x0%X%X%X,%s",
+ ((i%8) == 0) ? "\t" : " ",
(b->palette[(int)(i*3+0)] >> 4) & 0x0F,
(b->palette[(int)(i*3+1)] >> 4) & 0x0F,
(b->palette[(int)(i*3+2)] >> 4) & 0x0F,
- ((i%8) == 7) ? "\n" : " "
+ ((i%8) == 7) ? "\n" : ""
);
-#endif
}
+ /* seek to offset indicated by file header */
+ fseek(fp, (long)data_offset, SEEK_SET);
+
/* read the bitmap; leave room for default color map */
printf ("\n");
printf ("};\n");
printf ("\n");
- printf ("unsigned char bmp_logo_bitmap[] = {\n");
+ printf("unsigned char bmp_logo_bitmap[] = {\n");
for (i=(b->height-1)*b->width; i>=0; i-=b->width) {
for (x = 0; x < b->width; x++) {
- b->data[(uint16_t) i + x] = (uint8_t) fgetc (fp) \
+ b->data[i + x] = (uint8_t) fgetc(fp)
+ DEFAULT_CMAP_SIZE;
}
}
- fclose (fp);
for (i=0; i<(b->height*b->width); ++i) {
if ((i%8) == 0)
}
printf ("\n"
"};\n\n"
- "#endif /* __BMP_LOGO_H__ */\n"
+ "#endif /* __BMP_LOGO_DATA_H__ */\n"
);
- return (0);
+out:
+ fclose(fp);
+ return 0;
}
projects / J-u-boot.git / blobdiff