566 lines
14 KiB
C
566 lines
14 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 "file.h"
|
|
|
|
#ifdef __GNUC__
|
|
#define STRUCT_PACKED __attribute__((packed))
|
|
#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;
|
|
|
|
static struct Fileheader fh;
|
|
static unsigned char* bmp;
|
|
static struct RGBQUAD palette[2]; /* two colors only */
|
|
|
|
static unsigned int bitmap_width, bitmap_height;
|
|
static unsigned char *bitmap;
|
|
|
|
#ifdef STANDALONE
|
|
static id_str[256];
|
|
static bool compress = false;
|
|
static bool assembly = false;
|
|
static unsigned char* converted_bmp;
|
|
static unsigned char* compressed_bmp;
|
|
static unsigned int width;
|
|
static unsigned int converted_size;
|
|
static unsigned int compressed_size;
|
|
static unsigned int rounded_width;
|
|
#endif
|
|
|
|
#define readshort(x) (((x&0xff00)>>8)|((x&0x00ff)<<8))
|
|
#define readlong(x) (((x&0xff000000)>>24)| \
|
|
((x&0x00ff0000)>>8) | \
|
|
((x&0x0000ff00)<<8) | \
|
|
((x&0x000000ff)<<24))
|
|
|
|
|
|
/*********************************************************************
|
|
* read_bmp_file()
|
|
*
|
|
* Reads a monochrome 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)
|
|
{
|
|
long PaddedWidth;
|
|
int background;
|
|
int fd = open(filename, O_RDONLY);
|
|
long size;
|
|
unsigned int row, col, byte, bit;
|
|
int l;
|
|
char *bmp;
|
|
int width;
|
|
int height;
|
|
|
|
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");
|
|
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));
|
|
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));
|
|
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));
|
|
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");
|
|
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)*readshort(fh.BitCount);
|
|
PaddedWidth = ((width+31)&(~0x1f))/8;
|
|
size = PaddedWidth*readlong(fh.Height);
|
|
|
|
bmp = (unsigned char *)malloc(size);
|
|
|
|
if(bmp == NULL)
|
|
{
|
|
debugf("error - Out of memory\n");
|
|
return 6;
|
|
}
|
|
else
|
|
{
|
|
if(read(fd, (unsigned char*)bmp,(long)size) != size) {
|
|
debugf("error - Can't read image\n");
|
|
return 7;
|
|
}
|
|
}
|
|
|
|
bitmap_height = readlong(fh.Height);
|
|
bitmap_width = readlong(fh.Width);
|
|
|
|
*get_width = bitmap_width;
|
|
*get_height = bitmap_height;
|
|
|
|
#if 0
|
|
/* 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++) {
|
|
bit = 7;
|
|
byte = 0;
|
|
for(col = 0;col < bitmap_width;col++) {
|
|
if((bmp[(bitmap_height - row - 1) * PaddedWidth + byte] &
|
|
(1 << bit))) {
|
|
|
|
bitmap[ (row/8) * bitmap_width + col ] |= 1<<(row&7);
|
|
}
|
|
else {
|
|
bitmap[ (row/8) * bitmap_width + col ] &= ~ 1<<(row&7);
|
|
}
|
|
if(bit) {
|
|
bit--;
|
|
}
|
|
else {
|
|
bit = 7;
|
|
byte++;
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
/* 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 - row) * PaddedWidth]) {
|
|
bitmap[ (row/8) * bitmap_width + col ] |= 1<<(row&7);
|
|
}
|
|
else {
|
|
bitmap[ (row/8) * bitmap_width + col ] &= ~ 1<<(row&7);
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|
|
}
|
|
return 0; /* success */
|
|
}
|
|
|
|
#ifdef STANDALONE
|
|
|
|
/*********************************************************************
|
|
** read_next_converted_byte()
|
|
**
|
|
** Reads the next 6-pixel chunk from the 1-byte-per-pixel array,
|
|
** padding the last byte with zeros if the size is not divisible by 6.
|
|
**********************************************/
|
|
unsigned char read_next_converted_byte(void)
|
|
{
|
|
unsigned char dest;
|
|
unsigned int i;
|
|
static unsigned int row = 0, col = 0;
|
|
|
|
dest = 0;
|
|
for(i = 0;i < 6 && col < bitmap_width;i++,col++)
|
|
{
|
|
if(bitmap[row * bitmap_width + col])
|
|
{
|
|
dest |= (unsigned char)(1 << (5-i));
|
|
}
|
|
}
|
|
|
|
if(col >= bitmap_width)
|
|
{
|
|
col = 0;
|
|
row++;
|
|
}
|
|
|
|
return dest;
|
|
}
|
|
|
|
/*********************************************************************
|
|
** convert_image()
|
|
**
|
|
** Converts the 1-byte-per-pixel array into a 6-pixel-per-byte array,
|
|
** i.e the BMP_FORMAT_VANILLA format.
|
|
**********************************************/
|
|
void convert_image(void)
|
|
{
|
|
int newsize;
|
|
unsigned int row, col;
|
|
|
|
rounded_width = fh.Width/6 + ((fh.Width%6)?1:0);
|
|
newsize = rounded_width * fh.Height;
|
|
|
|
converted_bmp = (unsigned char *)malloc(newsize);
|
|
|
|
for(row = 0;row < fh.Height;row++)
|
|
{
|
|
for(col = 0;col < rounded_width;col++)
|
|
{
|
|
converted_bmp[row * rounded_width + col] = read_next_converted_byte();
|
|
}
|
|
}
|
|
converted_size = rounded_width * fh.Height;
|
|
}
|
|
|
|
#define COMPRESSED_ZEROS_AHEAD 0x40
|
|
#define COMPRESSED_ONES_AHEAD 0x80
|
|
|
|
/*********************************************************************
|
|
** compress_image()
|
|
**
|
|
** Compresses the BMP_FORMAT_VANILLA format with a simple RLE
|
|
** algorithm. The output is in the BMP_FORMAT_RLE format.
|
|
**********************************************/
|
|
void compress_image(void)
|
|
{
|
|
unsigned int i, j, count;
|
|
unsigned int index = 0;
|
|
unsigned char val;
|
|
|
|
compressed_bmp = (unsigned char *)malloc(converted_size);
|
|
|
|
for(i = 0;i < converted_size;i++)
|
|
{
|
|
val = converted_bmp[i];
|
|
|
|
if(val == 0|| val == 0x3f)
|
|
{
|
|
count = 0;
|
|
while(count < 0x4000 && (i + count) < converted_size &&
|
|
converted_bmp[i+count] == val)
|
|
{
|
|
count++;
|
|
}
|
|
if(count > 2)
|
|
{
|
|
compressed_bmp[index++] = (unsigned char)
|
|
(((val == 0)?COMPRESSED_ZEROS_AHEAD:COMPRESSED_ONES_AHEAD) |
|
|
(count >> 8));
|
|
compressed_bmp[index++] = (unsigned char)(count & 0xff);
|
|
}
|
|
else
|
|
{
|
|
for(j = 0;j < count;j++)
|
|
{
|
|
compressed_bmp[index++] = val;
|
|
}
|
|
}
|
|
i += count - 1;
|
|
}
|
|
else
|
|
{
|
|
compressed_bmp[index++] = val;
|
|
}
|
|
}
|
|
|
|
compressed_size = index;
|
|
}
|
|
|
|
/*********************************************************************
|
|
** generate_c_source()
|
|
**
|
|
** Outputs a C source code with the converted/compressed bitmap in
|
|
** an array, accompanied by some #define's
|
|
**********************************************/
|
|
void generate_c_source(char *id, BOOL compressed)
|
|
{
|
|
FILE *f;
|
|
unsigned int i;
|
|
unsigned int size;
|
|
unsigned char *bmp;
|
|
|
|
size = compressed?compressed_size:converted_size;
|
|
bmp = compressed?compressed_bmp:converted_bmp;
|
|
|
|
f = stdout;
|
|
|
|
fprintf(f, "#define %s_WIDTH %d\n", id, rounded_width * 6);
|
|
fprintf(f, "#define %s_HEIGHT %d\n", id, fh.Height);
|
|
fprintf(f, "#define %s_SIZE %d\n", id, size + 6);
|
|
if(compressed)
|
|
{
|
|
fprintf(f, "#define %s_ORIGINAL_SIZE %d\n", id, converted_size);
|
|
}
|
|
fprintf(f, "#define %s_FORMAT %s\n", id,
|
|
compressed?"BMP_FORMAT_RLE":"BMP_FORMAT_VANILLA");
|
|
fprintf(f, "\nconst unsigned char bmpdata_%s[] = {", id);
|
|
|
|
/* Header */
|
|
fprintf(f, "\n %s, 0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,",
|
|
compressed?"BMP_FORMAT_RLE":"BMP_FORMAT_VANILLA",
|
|
size >> 8, size & 0xff, 2, fh.Height, rounded_width * 6);
|
|
|
|
for(i = 0;i < size;i++)
|
|
{
|
|
if(i % 10 == 0)
|
|
{
|
|
fprintf(f, "\n ");
|
|
}
|
|
fprintf(f, "0x%02x,", bmp[i]);
|
|
}
|
|
fprintf(f, "\n};");
|
|
}
|
|
|
|
/*********************************************************************
|
|
** generate_asm_source()
|
|
**
|
|
** Outputs an ASM source code with the converted/compressed bitmap in
|
|
** an array, the first 2 bytes describing the X and Y size
|
|
**********************************************/
|
|
void generate_asm_source(char *id, BOOL compressed)
|
|
{
|
|
FILE *f;
|
|
unsigned int i;
|
|
unsigned int size;
|
|
unsigned char *bmp;
|
|
|
|
size = compressed?compressed_size:converted_size;
|
|
bmp = compressed?compressed_bmp:converted_bmp;
|
|
|
|
f = stdout;
|
|
|
|
fprintf(f, "bmpdata_%s:\n", id);
|
|
/* Header */
|
|
fprintf(f, "\n db %s, %.2xh,%.2xh,%.2xh,%.2xh,%.2xh,",
|
|
compressed?"1":"0",
|
|
size >> 8, size & 0xff, 2, fh.Height, rounded_width * 6);
|
|
|
|
for(i = 0;i < size;i++)
|
|
{
|
|
if(i % 10 == 0)
|
|
{
|
|
fprintf(f, "\n db ");
|
|
}
|
|
fprintf(f, "%.2xh,", bmp[i]);
|
|
}
|
|
fprintf(f, "\n");
|
|
}
|
|
|
|
void print_usage(void)
|
|
{
|
|
printf("bmp2mt - Converts BMP files to MT Pro source code format\n");
|
|
printf("build date: " __DATE__ "\n\n");
|
|
printf("Usage: %s [-i <id>] [-c] [-a] <bitmap file>\n"
|
|
"-i <id> Bitmap ID (default is filename without extension)\n"
|
|
"-c Compress (BMP_FORMAT_RLE)\n"
|
|
"-f Frexx Format!!!\n"
|
|
"-a Assembly format source code\n", APPLICATION_NAME);
|
|
}
|
|
|
|
#pragma argsused
|
|
int main(int argc, char **argv)
|
|
{
|
|
char *bmp_filename = NULL;
|
|
char *id = NULL;
|
|
char errstr[80];
|
|
int i;
|
|
|
|
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 'c': /* Compressed */
|
|
compress = true;
|
|
break;
|
|
|
|
case 'a': /* Assembly */
|
|
assembly = 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] = '_';
|
|
}
|
|
else if(id[i] == '.')
|
|
{
|
|
id[i] = '\0';
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
id[i] = (char)toupper(id[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
read_bmp_file(bmp_filename);
|
|
convert_image();
|
|
if(fh.Width % 6)
|
|
{
|
|
|
|
sprintf(errstr, "warning - width is not divisible by 6 (%d), "
|
|
"padding with zeros to %d\n", fh.Width, rounded_width*6);
|
|
print_error(errstr, 0);
|
|
}
|
|
|
|
if(compress)
|
|
{
|
|
compress_image();
|
|
}
|
|
|
|
if(assembly)
|
|
{
|
|
generate_asm_source(id, compress);
|
|
}
|
|
else
|
|
{
|
|
generate_c_source(id, compress);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#endif
|