375 lines
9.2 KiB
C
375 lines
9.2 KiB
C
|
/***************************************************************************
|
||
|
|
* __________ __ ___.
|
||
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||
|
|
* \/ \/ \/ \/ \/
|
||
|
|
* $Id$
|
||
|
|
*
|
||
|
|
* Copyright (C) 2002 by Linus Nielsen Feltzing
|
||
|
|
*
|
||
|
|
* All files in this archive are subject to the GNU General Public License.
|
||
|
|
* See the file COPYING in the source tree root for full license agreement.
|
||
|
|
*
|
||
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||
|
|
* KIND, either express or implied.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
/*********************************************************************
|
||
|
|
*
|
||
|
|
* Converts BMP files to Rockbox bitmap format
|
||
|
|
*
|
||
|
|
* 1999-05-03 Linus Nielsen Feltzing
|
||
|
|
*
|
||
|
|
**********************************************/
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <stdbool.h>
|
||
|
|
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <sys/stat.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
|
||
|
|
#define debugf printf
|
||
|
|
|
||
|
|
#ifdef __GNUC__
|
||
|
|
#define STRUCT_PACKED __attribute__((packed))
|
||
|
|
#else
|
||
|
|
#define STRUCT_PACKED
|
||
|
|
#pragma pack (push, 2)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
struct Fileheader
|
||
|
|
{
|
||
|
|
unsigned short Type; /* signature - 'BM' */
|
||
|
|
unsigned long Size; /* file size in bytes */
|
||
|
|
unsigned short Reserved1; /* 0 */
|
||
|
|
unsigned short Reserved2; /* 0 */
|
||
|
|
unsigned long OffBits; /* offset to bitmap */
|
||
|
|
unsigned long StructSize; /* size of this struct (40) */
|
||
|
|
unsigned long Width; /* bmap width in pixels */
|
||
|
|
unsigned long Height; /* bmap height in pixels */
|
||
|
|
unsigned short Planes; /* num planes - always 1 */
|
||
|
|
unsigned short BitCount; /* bits per pixel */
|
||
|
|
unsigned long Compression; /* compression flag */
|
||
|
|
unsigned long SizeImage; /* image size in bytes */
|
||
|
|
long XPelsPerMeter; /* horz resolution */
|
||
|
|
long YPelsPerMeter; /* vert resolution */
|
||
|
|
unsigned long ClrUsed; /* 0 -> color table size */
|
||
|
|
unsigned long ClrImportant; /* important color count */
|
||
|
|
} STRUCT_PACKED;
|
||
|
|
|
||
|
|
struct RGBQUAD
|
||
|
|
{
|
||
|
|
unsigned char rgbBlue;
|
||
|
|
unsigned char rgbGreen;
|
||
|
|
unsigned char rgbRed;
|
||
|
|
unsigned char rgbReserved;
|
||
|
|
} STRUCT_PACKED;
|
||
|
|
|
||
|
|
#ifdef LITTLE_ENDIAN
|
||
|
|
#define readshort(x) x
|
||
|
|
#define readlong(x) x
|
||
|
|
#else
|
||
|
|
|
||
|
|
#define readshort(x) (((x&0xff00)>>8)|((x&0x00ff)<<8))
|
||
|
|
#define readlong(x) (((x&0xff000000)>>24)| \
|
||
|
|
((x&0x00ff0000)>>8) | \
|
||
|
|
((x&0x0000ff00)<<8) | \
|
||
|
|
((x&0x000000ff)<<24))
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*********************************************************************
|
||
|
|
* read_bmp_file()
|
||
|
|
*
|
||
|
|
* Reads a 8bit BMP file and puts the data in a 1-pixel-per-byte
|
||
|
|
* array. Returns 0 on success.
|
||
|
|
*
|
||
|
|
*********************************************************************/
|
||
|
|
int read_bmp_file(char* filename,
|
||
|
|
int *get_width, /* in pixels */
|
||
|
|
int *get_height, /* in pixels */
|
||
|
|
char **bitmap)
|
||
|
|
{
|
||
|
|
struct Fileheader fh;
|
||
|
|
struct RGBQUAD palette[2]; /* two colors only */
|
||
|
|
|
||
|
|
unsigned int bitmap_width, bitmap_height;
|
||
|
|
|
||
|
|
long PaddedWidth;
|
||
|
|
int background;
|
||
|
|
int fd = open(filename, O_RDONLY);
|
||
|
|
long size;
|
||
|
|
unsigned int row, col;
|
||
|
|
int l;
|
||
|
|
unsigned char *bmp;
|
||
|
|
int width;
|
||
|
|
|
||
|
|
if(fd == -1)
|
||
|
|
{
|
||
|
|
debugf("error - can't open '%s'\n", filename);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if(read(fd, &fh, sizeof(struct Fileheader)) !=
|
||
|
|
sizeof(struct Fileheader))
|
||
|
|
{
|
||
|
|
debugf("error - can't Read Fileheader Stucture\n");
|
||
|
|
close(fd);
|
||
|
|
return 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Exit if not monochrome */
|
||
|
|
if(readshort(fh.BitCount) > 8)
|
||
|
|
{
|
||
|
|
debugf("error - Bitmap must be less than 8, got %d\n",
|
||
|
|
readshort(fh.BitCount));
|
||
|
|
close(fd);
|
||
|
|
return 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Exit if too wide */
|
||
|
|
if(readlong(fh.Width) > 112)
|
||
|
|
{
|
||
|
|
debugf("error - Bitmap is too wide (%d pixels, max is 112)\n",
|
||
|
|
readlong(fh.Width));
|
||
|
|
close(fd);
|
||
|
|
return 3;
|
||
|
|
}
|
||
|
|
debugf("Bitmap is %d pixels wide\n", readlong(fh.Width));
|
||
|
|
|
||
|
|
/* Exit if too high */
|
||
|
|
if(readlong(fh.Height) > 64)
|
||
|
|
{
|
||
|
|
debugf("error - Bitmap is too high (%d pixels, max is 64)\n",
|
||
|
|
readlong(fh.Height));
|
||
|
|
close(fd);
|
||
|
|
return 4;
|
||
|
|
}
|
||
|
|
debugf("Bitmap is %d pixels heigh\n", readlong(fh.Height));
|
||
|
|
|
||
|
|
for(l=0;l < 2;l++)
|
||
|
|
{
|
||
|
|
if(read(fd, &palette[l],sizeof(struct RGBQUAD)) !=
|
||
|
|
sizeof(struct RGBQUAD))
|
||
|
|
{
|
||
|
|
debugf("error - Can't read bitmap's color palette\n");
|
||
|
|
close(fd);
|
||
|
|
return 5;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/* pass the other palettes */
|
||
|
|
lseek(fd, 254*sizeof(struct RGBQUAD), SEEK_CUR);
|
||
|
|
|
||
|
|
/* Try to guess the foreground and background colors.
|
||
|
|
We assume that the foreground color is the darkest. */
|
||
|
|
if(((int)palette[0].rgbRed +
|
||
|
|
(int)palette[0].rgbGreen +
|
||
|
|
(int)palette[0].rgbBlue) >
|
||
|
|
((int)palette[1].rgbRed +
|
||
|
|
(int)palette[1].rgbGreen +
|
||
|
|
(int)palette[1].rgbBlue))
|
||
|
|
{
|
||
|
|
background = 0;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
background = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
width = readlong(fh.Width);
|
||
|
|
PaddedWidth = ((width+3)&(~0x3));
|
||
|
|
size = PaddedWidth*readlong(fh.Height);
|
||
|
|
|
||
|
|
bmp = (unsigned char *)malloc(size);
|
||
|
|
*bitmap = (unsigned char *)malloc(size);
|
||
|
|
|
||
|
|
if(bmp == NULL)
|
||
|
|
{
|
||
|
|
debugf("error - Out of memory\n");
|
||
|
|
close(fd);
|
||
|
|
return 6;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if(read(fd, (unsigned char*)bmp,(long)size) != size) {
|
||
|
|
debugf("error - Can't read image\n");
|
||
|
|
close(fd);
|
||
|
|
return 7;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
bitmap_height = readlong(fh.Height);
|
||
|
|
bitmap_width = readlong(fh.Width);
|
||
|
|
|
||
|
|
*get_width = bitmap_width;
|
||
|
|
*get_height = bitmap_height;
|
||
|
|
|
||
|
|
/* Now convert the bitmap into an array with 1 byte per pixel,
|
||
|
|
exactly the size of the image */
|
||
|
|
|
||
|
|
for(row = 0;row < bitmap_height;row++) {
|
||
|
|
for(col = 0;col < bitmap_width;col++) {
|
||
|
|
if(bmp[(bitmap_height-1 -row) * PaddedWidth + col]) {
|
||
|
|
(*bitmap)[ (row/8) * bitmap_width + col ] &= ~ (1<<(row&7));
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
(*bitmap)[ (row/8) * bitmap_width + col ] |= 1<<(row&7);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
free(bmp);
|
||
|
|
|
||
|
|
}
|
||
|
|
close(fd);
|
||
|
|
return 0; /* success */
|
||
|
|
}
|
||
|
|
|
||
|
|
/*********************************************************************
|
||
|
|
** generate_c_source()
|
||
|
|
**
|
||
|
|
** Outputs a C source code with the bitmap in an array, accompanied by
|
||
|
|
** some #define's
|
||
|
|
**********************************************************************/
|
||
|
|
void generate_c_source(char *id, int width, int height, unsigned char *bitmap)
|
||
|
|
{
|
||
|
|
FILE *f;
|
||
|
|
unsigned int i, a, eline;
|
||
|
|
|
||
|
|
f = stdout;
|
||
|
|
|
||
|
|
fprintf(f, "\nconst unsigned char %s[] = {\n", id);
|
||
|
|
|
||
|
|
for(i=0, eline=0; i< height; i+=8, eline++) {
|
||
|
|
for (a=0; a<width; a++) fprintf(f, "0x%02x, ", bitmap[eline*width + a]);
|
||
|
|
fprintf(f, "\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
fprintf(f, "\n};");
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*********************************************************************
|
||
|
|
** generate_ascii()
|
||
|
|
**
|
||
|
|
** Outputs an ascii picture of the bitmap
|
||
|
|
**********************************************************************/
|
||
|
|
void generate_ascii(int width, int height, unsigned char *bitmap)
|
||
|
|
{
|
||
|
|
FILE *f;
|
||
|
|
unsigned int i, eline;
|
||
|
|
|
||
|
|
f = stdout;
|
||
|
|
|
||
|
|
/* for screen output debugging */
|
||
|
|
for(i=0, eline=0; i< height; i+=8, eline++) {
|
||
|
|
unsigned int x, y;
|
||
|
|
for(y=0; y<8 && (i+y < height); y++) {
|
||
|
|
for(x=0; x < width; x++) {
|
||
|
|
|
||
|
|
if(bitmap[eline*width + x] & (1<<y)) {
|
||
|
|
fprintf(f, "*");
|
||
|
|
}
|
||
|
|
else
|
||
|
|
fprintf(f, " ");
|
||
|
|
}
|
||
|
|
fprintf(f, "\n");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void print_usage(void)
|
||
|
|
{
|
||
|
|
printf("Usage: %s [-i <id>] [-a] <bitmap file>\n"
|
||
|
|
"\t-i <id> Bitmap name (default is filename without extension)\n"
|
||
|
|
"\t-a Show ascii picture of bitmap\n",
|
||
|
|
APPLICATION_NAME);
|
||
|
|
printf("build date: " __DATE__ "\n\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(int argc, char **argv)
|
||
|
|
{
|
||
|
|
char *bmp_filename = NULL;
|
||
|
|
char *id = NULL;
|
||
|
|
int i;
|
||
|
|
int height, width;
|
||
|
|
int ascii = false;
|
||
|
|
char* bitmap = NULL;
|
||
|
|
|
||
|
|
|
||
|
|
for(i = 1;i < argc;i++)
|
||
|
|
{
|
||
|
|
if(argv[i][0] == '-')
|
||
|
|
{
|
||
|
|
switch(argv[i][1])
|
||
|
|
{
|
||
|
|
case 'i': /* ID */
|
||
|
|
if(argv[i][2])
|
||
|
|
{
|
||
|
|
id = &argv[i][2];
|
||
|
|
}
|
||
|
|
else if(argc > i+1)
|
||
|
|
{
|
||
|
|
id = argv[i+1];
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
print_usage();
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'a': /* Assembly */
|
||
|
|
ascii = true;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
print_usage();
|
||
|
|
exit(1);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if(!bmp_filename)
|
||
|
|
{
|
||
|
|
bmp_filename = argv[i];
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
print_usage();
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!bmp_filename)
|
||
|
|
{
|
||
|
|
print_usage();
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!id)
|
||
|
|
{
|
||
|
|
id = strdup(bmp_filename);
|
||
|
|
for (i = 0; id[i]; i++) if (id[i] == '.') id[i] = '\0';
|
||
|
|
}
|
||
|
|
|
||
|
|
if (read_bmp_file(bmp_filename, &width, &height, &bitmap))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
if (ascii)
|
||
|
|
generate_ascii(width, height, bitmap);
|
||
|
|
else
|
||
|
|
generate_c_source(id, width, height, bitmap);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|