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BMP2PIC.CPP
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BMP2PIC.CPP
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/* ----------------------------------------------------------------- *
* PROGRAM-ID. BMP2PIC.C *
* AUTHOR. ARIMAC. *
* DATE-WRITTEN. 1994.05.30 *
* REMARKS. *
* *
* ・MS-Windows の BMP ファイルを PIC ファイルに変換する。 *
* ・ただし、２／１６／２５６／１６７８万色非圧縮のファイルのみ *
* 対応。 *
* *
* HISTORY. *
* *
* 1994.05.30 v0.01 誕生 *
* *
* 1994.08.23 v0.02 出力先ディレクトリを指定出来るようにした。 *
* 512ライン超え分割画像のエッジマップの初期化を *
* 忘れていた。 *
* *
* 1994.09.21 v0.03 エラーになったファイルは無視するようにした。 *
* 変換中のラインが分かるようにした。 *
* ２色画像の変化点の探査を失敗してた(^^; *
* 高速化。 *
* *
* ----------------------------------------------------------------- */
/* Windows ported 2023.03 by Awed (Thanks nozwaz) */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include <setjmp.h>
#include <malloc.h>
typedef unsigned char uchar ;
typedef unsigned short ushort ;
typedef unsigned int uint ;
#define _LITTLE_ENDIAN 1 //Modern computers are usually little endian
#include "ENDIAN.H"
#define _CRT_SECURE_NO_WARNING
#define numberof(x) ( sizeof ( x ) / sizeof ( * ( x ) ) )
#pragma pack(push, 1)
#pragma warning(disable : 4996)
/* ---------------------------------------------------------------- */
#define mbsizeof(TYPE,MEMBER) (sizeof(((TYPE *)0)->MEMBER))
#define swap_parm(TYPE,MEMBER) offsetof(TYPE,MEMBER),mbsizeof(TYPE,MEMBER)
/* ---------------------------------------------------------------- */
typedef ushort PIXEL ;
#define RGB(wr,wg,wb) ((PIXEL)(((((wg)<<5|(wr))<<5|(wb))<<1)+1))
/* ---------------------------------------------------------------- */
typedef struct {
ushort bfType ;
uint bfSize ;
ushort bfReserved1 ;
ushort bfReserved2 ;
uint bfOffBits ;
} BITMAP_FILE_HEADER ;
static char bmp_fil_hdr_swap [ ] = {
swap_parm ( BITMAP_FILE_HEADER , bfSize ) ,
swap_parm ( BITMAP_FILE_HEADER , bfOffBits ) ,
} ;
/* ---------------------------------------------------------------- */
typedef struct {
uint biSize ;
uint biWidth ;
uint biHeight ;
ushort biPlanes ;
ushort biBitCount ;
uint biCompression ;
uint biSizeImage ;
uint biXPelsPerMeter ;
uint biYPelsPerMeter ;
uint biClrUsed ;
uint biClrImportant ;
} BITMAP_INFO_HEADER ;
static char bmp_inf_hdr_swap [ ] = {
swap_parm ( BITMAP_INFO_HEADER , biSize ) ,
swap_parm ( BITMAP_INFO_HEADER , biWidth ) ,
swap_parm ( BITMAP_INFO_HEADER , biHeight ) ,
swap_parm ( BITMAP_INFO_HEADER , biPlanes ) ,
swap_parm ( BITMAP_INFO_HEADER , biBitCount ) ,
swap_parm ( BITMAP_INFO_HEADER , biCompression ) ,
swap_parm ( BITMAP_INFO_HEADER , biSizeImage ) ,
swap_parm ( BITMAP_INFO_HEADER , biXPelsPerMeter ) ,
swap_parm ( BITMAP_INFO_HEADER , biYPelsPerMeter ) ,
swap_parm ( BITMAP_INFO_HEADER , biClrUsed ) ,
swap_parm ( BITMAP_INFO_HEADER , biClrImportant ) ,
} ;
/* ---------------------------------------------------------------- */
typedef struct {
uchar rgbBlue ;
uchar rgbGreen ;
uchar rgbRed ;
uchar rgbReserved ;
} RGB_QUAD ;
/* ---------------------------------------------------------------- */
static struct CL_CACHE {
PIXEL color ;
char next ;
char prev ;
} cl_cache [ 128 ] ;
static int cur_cl_ix ;
/* ---------------------------------------------------------------- */
static int x_arg_chk ( int argc , char * argv [ ] ) ;
static void x_print_help ( int argc , char * argv [ ] ) ;
static int x_file_proc ( char * fname_pt1 ) ;
static int x_bmp_pic_conv ( char * fname_pt1 , int dir_len1 ) ;
static void x_swap_bytes ( void * buf_pt1 , uchar * ctl_pt1 , int cnt1 ) ;
static int x_bmp_pic_conv1 ( void ) ;
static int x_bmp_pic_conv4 ( void ) ;
static int x_bmp_pic_conv8 ( void ) ;
static int x_bmp_pic_conv24 ( void ) ;
static void x_write_hdr ( int cl_bit1 ) ;
static void str_write ( uchar * str_pt1 ) ;
static void x_conv_palette ( int cl_bit1 ) ;
static void x_read_bmp_image8 ( int oy1 , int syl1 ) ;
static void x_mark_diff_point1 ( int oy1 , int syl1 ) ;
static void x_compress1 ( int oy1 , int syl1 ) ;
static void x_compress_chain1 ( int sx1 , int sy1 ,
uchar * edge_map_pt1 , uchar * img_buf_pt1 , uchar cl1 ) ;
static void x_mark_diff_point4 ( int oy1 , int syl1 ) ;
static void x_compress4 ( int oy1 , int syl1 ) ;
static void x_compress_chain4 ( int sx1 , int sy1 ,
uchar * edge_map_pt1 , uchar * img_buf_pt1 , uchar cl1 ) ;
static void x_mark_diff_point8 ( int oy1 , int syl1 ) ;
static void x_compress8 ( int oy1 , int syl1 ) ;
static void x_compress_chain8 ( int sx1 , int sy1 ,
uchar * edge_map_pt1 , uchar * img_buf_pt1 , uchar cl1 ) ;
static void x_read_bmp_image24 ( int oy1 , int syl1 ) ;
static void mk_cnvtbl ( void ) ;
static void x_conv_line24 ( PIXEL * img_pt1 , uchar * bmp_pt1 , int sxl1 ) ;
static void x_init_color_cash ( void ) ;
static void x_mark_diff_point16 ( int oy1 , int syl1 ) ;
static void x_compress15 ( int oy1 , int syl1 ) ;
static void x_compress_chain15 ( int sx1 , int sy1 ,
uchar * edge_map_pt1 , PIXEL * img_buf_pt1 , PIXEL cl1 ) ;
static void write_len ( int n ) ;
static void write_color15 ( PIXEL cl1 ) ;
static int search_col ( PIXEL cl1 ) ;
static void set_color ( int ix1 ) ;
static void bit_write ( int wlen1 , uint wdata1 ) ;
static void x_flush_buff ( void ) ;
// static uint swap_uint(uint bigend);
// static ushort swap_ushort(ushort bigend);
// static short swap_short(short bigend);
// static int swap_int(int bigend);
/* ---------------------------------------------------------------- */
static char dos_mode = 1 ; /* 1:パスの区切りを￥に変換する。 */
static char info_mode = 0 ; /* 1:情報表示モード */
static char * out_dir1 = NULL ; /* 出力先指定 */
static char trans_mode = 0 ; /* 1:拡張子 .BMP を付けない。 */
static char verbose_mode = 0 ; /* 1:お喋りモード */
static char * bmp_fname_pt1 ;
static int bmp_fh ;
static FILE* bmp_f;
static int bmp_file_date1 = 0 ; /* BMPファイル日付 */
static BITMAP_FILE_HEADER bmp_fil_hdr ;
static BITMAP_INFO_HEADER bmp_inf_hdr ;
static int buf_xb1 , buf_yl1 ;
static int edge_xb1 ;
static uint edge_sz1 ;
static char * pic_fname_pt1 ;
static int pic_fh ;
static FILE* pic_f;
static int bit_len ;
static int buff_len ;
static uint pic_bit_data ;
static uint * pic_put_pt ;
static uint pic_buf [ 2048 ] ;
static jmp_buf wenv1 ;
static uchar * edge_map1 ; /* ２色は big endian、その他は little endian */
static uchar * img_buf8 ;
static PIXEL * img_buf16 ;
static PIXEL red_cnv_tbl [ 256 ] ;
static PIXEL green_cnv_tbl [ 256 ] ;
static PIXEL blue_cnv_tbl [ 256 ] ;
/* ---------------------------------------------------------------- */
#define x_strlen(s) strlen ( ( char * ) ( s ) )
#define x_strcpy(d,s) strcpy ( ( char * ) ( d ) , ( char * ) ( s ) )
/* ---------------------------------------------------------------- */
int main ( int argc , char * argv [ ] )
{
int ix1 , fcnt1 ;
char wch1 ;
char * ch_pt1 ;
puts ( "X68k BMP2PIC v0.03 Copyright 1994 Arimac" ) ;
puts ( "BMP to PIC File Converter (2/16/256/16M Colors)" ) ;
puts ( "cshwild (By Mad Player) included" ) ;
puts ( "Windows ported 2023 Awed" );
if ( x_arg_chk ( argc , argv ) != 0 ) goto lb600 ;
fcnt1 = 0 ;
for ( ix1 = 1 ; ix1 < argc ; ix1 ++ ) {
ch_pt1 = argv [ ix1 ] ;
wch1 = * ch_pt1 ;
if ( wch1 == '-' || wch1 == '/' ) {
if ( ch_pt1 [ 1 ] == 0 ) {
if ( ++ ix1 >= argc ) goto lb600 ;
if ( x_file_proc ( argv [ ix1 ] ) < 0 ) goto lb800 ;
fcnt1 ++ ;
}
} else {
if ( x_file_proc ( ch_pt1 ) < 0 ) goto lb800 ;
fcnt1 ++ ;
}
}
if ( fcnt1 <= 0 ) goto lb600 ;
exit ( EXIT_SUCCESS ) ;
lb600 :
x_print_help ( argc , argv ) ;
lb800 :
exit ( EXIT_FAILURE ) ;
}
/* ---------------------------------------------------------------- */
static int x_arg_chk ( int argc , char * argv [ ] )
{
int ix1 ;
char wch1 ;
char * ch_pt1 ;
for ( ix1 = 1 ; ix1 < argc ; ix1 ++ ) {
ch_pt1 = argv [ ix1 ] ;
wch1 = * ch_pt1 ++ ;
if ( wch1 == '-' || wch1 == '/' ) {
switch ( * ch_pt1 ++ ) {
case 'd' : case 'D' : dos_mode = 1 ; break ;
case 'i' : case 'I' : info_mode = 1 ; break ;
case 'o' : case 'O' : out_dir1 = ch_pt1 ; break ;
case 't' : case 'T' : trans_mode = 1 ; break ;
case 'v' : case 'V' : verbose_mode = 1 ; break ;
case 0 :
if ( ++ ix1 >= argc ) goto lb800 ;
break ;
default :
goto lb800 ;
}
}
}
return ( 0 ) ;
lb800 :
return ( - 1 ) ;
}
/* ---------------------------------------------------------------- */
static void x_print_help ( int argc , char * argv [ ] )
{
printf("使用法：BMP2PIC［スイッチ］…［ファイル名[.BMP]］…\n");
printf("-d パスの区切りを変換する\n");
printf("-i ファイル情報表示\n");
printf("-o 出力先 出力先ディレクトリ指定\n");
printf("-t 拡張子 .BMP を付けない\n");
printf("-v お喋りモード\n");
printf("※変換結果は拡張子を .PIC にして出力。\n");
}
/* ---------------------------------------------------------------- */
static int x_file_proc ( char * path_pt1 )
{
char * fname_pt1 , * path_pt2 , * path_pt3 , * ch_pt1 ;
fname_pt1 = path_pt1 ;
if ( ( ch_pt1 = strrchr ( fname_pt1 , '/' ) ) != NULL ) fname_pt1 = ch_pt1 + 1 ;
if ( ( ch_pt1 = strrchr ( fname_pt1 , '\\' ) ) != NULL ) fname_pt1 = ch_pt1 + 1 ;
if ( ( ch_pt1 = strrchr ( fname_pt1 , ':' ) ) != NULL ) fname_pt1 = ch_pt1 + 1 ;
if ( trans_mode == 0 && strchr ( fname_pt1 , '.' ) == NULL ) {
path_pt2 = (char*) malloc ( x_strlen ( path_pt1 ) + 5 ) ;
sprintf ( path_pt2 , "%s.BMP" , path_pt1 ) ;
} else {
path_pt2 = path_pt1 ;
}
if ( dos_mode != 0 ) {
path_pt3 = (char*) malloc ( x_strlen ( path_pt2 ) + 1 ) ;
x_strcpy ( path_pt3 , path_pt2 ) ;
ch_pt1 = path_pt3 ;
while ( ( ch_pt1 = strchr ( ch_pt1 , '/' ) ) != NULL ) * ch_pt1 ++ = '\\' ;
path_pt2 = path_pt3 ;
}
return ( x_bmp_pic_conv ( path_pt2 , fname_pt1 - path_pt1 ) ) ;
}
/* ---------------------------------------------------------------- */
static int x_bmp_pic_conv ( char * path_pt1 , int dir_len1 )
{
int bmp_openf , pic_openf ;
int wlen1 , wlen2 , retc ;
char wch1 ;
char * ch_pt1 , * path_pt2 ;
int ( * proc_pt1 ) ( ) ;
bmp_openf = pic_openf = 0 ;
bmp_fname_pt1 = path_pt2 = path_pt1 ;
if ( out_dir1 != NULL ) {
wlen1 = x_strlen ( out_dir1 ) ;
wlen2 = x_strlen ( path_pt1 + dir_len1 ) ;
path_pt2 = (char *) malloc ( wlen1 + wlen2 + 2 ) ;
if ( wlen1 > 0 ) {
memcpy ( path_pt2 , out_dir1 , wlen1 ) ;
wch1 = out_dir1 [ wlen1 - 1 ] ;
if ( wch1 != ':' && wch1 != '\\' && wch1 != '/' ) {
if ( dos_mode == 0 ) {
wch1 = '/' ;
} else {
wch1 = '\\' ;
}
path_pt2 [ wlen1 ++ ] = wch1 ;
}
}
memcpy ( path_pt2 + wlen1 , path_pt1 + dir_len1 , wlen2 + 1 ) ;
}
if ( ( ch_pt1 = strrchr ( path_pt2 + dir_len1 , '.' ) ) == NULL ) {
wlen1 = x_strlen ( path_pt2 ) ;
} else {
wlen1 = ch_pt1 - path_pt2 ;
}
pic_fname_pt1 = (char*) malloc ( wlen1 + 5 ) ;
memcpy ( pic_fname_pt1 , path_pt2 , wlen1 ) ;
x_strcpy ( pic_fname_pt1 + wlen1 , ".PIC" ) ;
if ( ( bmp_fh = fileno(fopen ( path_pt1 , "rb" ))) < 0 ) {
printf ( "%s はオープン出来ません。\n" , path_pt1 ) ;
goto lb720 ;
}
bmp_openf = 1 ;
bmp_f = fopen(path_pt1, "rb");
// bmp_file_date1 = getft ( bmp_fh ) ;
if ( fread ( & bmp_fil_hdr , 1,sizeof ( bmp_fil_hdr ), bmp_f ) !=
sizeof ( bmp_fil_hdr ) ) goto lb700 ;
// x_swap_bytes ( & bmp_fil_hdr , bmp_fil_hdr_swap , numberof ( bmp_fil_hdr_swap ) / 2 ) ;
if ( info_mode != 0 ) {
printf ( "FileName ･････････ %s\n" , path_pt1 ) ;
printf ( "FileType ･････････ %04X\n" , bmp_fil_hdr . bfType ) ;
printf ( "FileSize ･････････ %d [bytes]\n" , bmp_fil_hdr . bfSize ) ;
printf ( "bfOffBits ････････ %d\n" , bmp_fil_hdr . bfOffBits ) ;
}
if ( bmp_fil_hdr . bfType != 19778 ) goto lb700 ;
if ( (fread ( & bmp_inf_hdr , 1, sizeof ( bmp_inf_hdr ), bmp_f) ) !=
sizeof ( bmp_inf_hdr ) ) goto lb700 ;
// x_swap_bytes ( & bmp_inf_hdr , bmp_inf_hdr_swap , numberof ( bmp_inf_hdr_swap ) / 2 ) ;
if ( info_mode == 0 ) {
printf ( "convert %s (%d bit, %d x %d) to %s\n" ,
path_pt1 , bmp_inf_hdr . biBitCount ,
bmp_inf_hdr . biWidth , bmp_inf_hdr . biHeight , pic_fname_pt1 ) ;
} else {
printf ( "biSize ･･･････････ %d [bytes]\n" , bmp_inf_hdr . biSize ) ;
printf ( "biWidth ･･････････ %d [pixels]\n" , bmp_inf_hdr . biWidth ) ;
printf ( "biHeight ･････････ %d [pixels]\n" , bmp_inf_hdr . biHeight ) ;
printf ( "biPlanes ･････････ %d\n" , bmp_inf_hdr . biPlanes ) ;
printf ( "biBitCount ･･･････ %d [bits]\n" , bmp_inf_hdr . biBitCount ) ;
printf ( "biCompression ････ %d\n" , bmp_inf_hdr . biCompression ) ;
printf ( "biSizeImage ･･････ %d [bytes]\n" , bmp_inf_hdr . biSizeImage ) ;
printf ( "biXPelsPerMeter ･･ %d [pixels/meter]\n" , bmp_inf_hdr . biXPelsPerMeter ) ;
printf ( "biYPelsPerMeter ･･ %d [pixels/meter]\n" , bmp_inf_hdr . biYPelsPerMeter ) ;
printf ( "biClrUsed ････････ %d [colors]\n" , bmp_inf_hdr . biClrUsed ) ;
printf ( "biClrImportant ･･･ %d [colors]\n\n" , bmp_inf_hdr . biClrImportant ) ;
goto lb500 ;
}
if ( bmp_inf_hdr . biCompression != 0 ) {
printf ( "%s は圧縮されているので対応できません。\n" , path_pt1 ) ;
goto lb720 ;
}
switch ( bmp_inf_hdr . biBitCount ) {
case 1 : proc_pt1 = x_bmp_pic_conv1 ; break ; /* 2色 */
case 4 : proc_pt1 = x_bmp_pic_conv4 ; break ; /* 16色 */
case 8 : proc_pt1 = x_bmp_pic_conv8 ; break ; /* 256色 */
case 24 : proc_pt1 = x_bmp_pic_conv24 ; break ; /* 1678色 */
default :
printf ( "%s は2色、16色、256色又は1678万色データではありません。\n" ,
path_pt1 ) ;
goto lb720 ;
}
if ( ( pic_fh = fileno(fopen ( pic_fname_pt1 , "wb") )) < 0 ) {
printf ( "%s が作成出来ません。\n" , pic_fname_pt1 ) ;
goto lb800 ;
}
pic_openf = 1 ;
pic_f = fopen(pic_fname_pt1, "wb");
pic_put_pt = pic_buf ;
buff_len = numberof(pic_buf);
bit_len = sizeof ( pic_bit_data ) * 8 ;
if ( ( * proc_pt1 ) ( ) != 0 ) goto lb800 ;
x_flush_buff ( ) ;
// chgft ( pic_fh , bmp_file_date1 ) ; // used for transferring timestamp from bmp to pic
pic_openf = 0 ;
if ( fclose ( pic_f ) < 0 ) {
printf ( "%s が作成出来ません。\n" , pic_fname_pt1 ) ;
goto lb800 ;
}
bmp_openf = 0 ;
fclose ( bmp_f) ;
lb500 :
retc = 0 ;
goto lb900 ;
lb700 :
printf ( "%s は BMP ファイルではありません。\n" , path_pt1 ) ;
lb720 :
retc = 1 ;
goto lb900 ;
lb800 :
retc = - 1 ;
lb900 :
if ( pic_openf != 0 ) fclose ( pic_f ) ;
if ( bmp_openf != 0 ) fclose ( bmp_f ) ;
return ( retc ) ;
}
/* ---------------------------------------------------------------- */
static void x_swap_bytes ( void * buf_pt1 , uchar * ctl_pt1 , int cnt1 )
{
int cnt2 ;
char wch1 ;
char * ch_pt1 , * ch_pt2 ;
while ( cnt1 -- ) {
ch_pt1 = ( char * ) buf_pt1 + * ctl_pt1 ++ ;
cnt2 = * ctl_pt1 ++ ;
ch_pt2 = ch_pt1 + cnt2 ;
cnt2 >>= 1 ;
while ( cnt2 -- ) {
wch1 = * ch_pt1 ;
* ch_pt1 ++ = * -- ch_pt2 ;
* ch_pt2 = wch1 ;
}
}
}
/* ---------------------------------------------------------------- */
static int x_bmp_pic_conv1 ( void )
{
uint big_img_sw1 , oy1 , syl1 ;
uint img_xl1 , img_yl1 ;
uint buf_sz1 ;
edge_map1 = NULL ;
img_buf8 = NULL ;
big_img_sw1 = 0 ;
if ( setjmp ( wenv1 ) != 0 ) goto lb800 ;
x_write_hdr ( 4 ) ;
x_conv_palette ( 4 ) ;
img_xl1 = bmp_inf_hdr . biWidth ;
img_yl1 = bmp_inf_hdr . biHeight ;
buf_xb1 = ( ( img_xl1 + 7 ) / 8 + 3 ) & ~ 3 ; /* BMP line width */
buf_yl1 = img_yl1 ;
if ( img_xl1 * img_yl1 > 1024 * 512 && img_yl1 > 512 ) {
buf_yl1 = 512 ;
big_img_sw1 = 1 ;
}
buf_sz1 = buf_xb1 * buf_yl1 ;
edge_xb1 = ( img_xl1 + 7 ) >> 3 ;
edge_sz1 = edge_xb1 * buf_yl1 ;
if ( ( edge_map1 = (uchar *)malloc ( edge_sz1 ) ) == NULL ) {
puts ( "edge_map can't alloc" ) ;
goto lb800 ;
}
if ( ( img_buf8 = (uchar*)malloc ( buf_sz1 ) ) == NULL ) {
puts ( "img_buf can't alloc" ) ;
goto lb800 ;
}
if ( big_img_sw1 == 0 ) {
x_read_bmp_image8 ( 0 , img_yl1 ) ;
x_mark_diff_point1 ( 0 , img_yl1 ) ;
x_compress1 ( 0 , img_yl1 ) ;
} else {
for ( oy1 = 0 ; oy1 + 512 < img_yl1 ; oy1 += 512 ) {
x_read_bmp_image8 ( oy1 , 512 ) ;
x_mark_diff_point1 ( oy1 , 512 ) ;
x_compress1 ( oy1 , 512 ) ;
}
syl1 = img_yl1 - oy1 ;
x_read_bmp_image8 ( oy1 , syl1 ) ;
x_mark_diff_point1 ( oy1 , syl1 ) ;
x_compress1 ( oy1 , syl1 ) ;
}
if ( verbose_mode != 0 ) printf ( "\n" ) ;
free ( img_buf8 ) ;
img_buf8 = NULL ;
free ( edge_map1 ) ;
edge_map1 = NULL ;
return ( 0 ) ;
lb800 :
if ( img_buf8 != NULL ) free ( img_buf8 ) ;
if ( edge_map1 != NULL ) free ( edge_map1 ) ;
return ( - 1 ) ;
}
/* ---------------------------------------------------------------- */
static int x_bmp_pic_conv4 ( void )
{
int big_img_sw1 , oy1 , syl1 ;
uint img_xl1 , img_yl1 ;
uint buf_sz1 ;
edge_map1 = NULL ;
img_buf8 = NULL ;
big_img_sw1 = 0 ;
if ( setjmp ( wenv1 ) != 0 ) goto lb800 ;
x_write_hdr ( 4 ) ;
x_conv_palette ( 4 ) ;
img_xl1 = bmp_inf_hdr . biWidth ;
img_yl1 = bmp_inf_hdr . biHeight ;
buf_xb1 = ( ( img_xl1 + 1 ) / 2 + 3 ) & ~ 3 ; /* BMP line width */
buf_yl1 = img_yl1 ;
if ( img_xl1 * img_yl1 > 1024 * 512 && img_yl1 > 512 ) {
buf_yl1 = 512 ;
big_img_sw1 = 1 ;
}
buf_sz1 = buf_xb1 * buf_yl1 ;
edge_xb1 = ( img_xl1 + 7 ) >> 3 ;
edge_sz1 = edge_xb1 * buf_yl1 ;
if ( ( edge_map1 = (uchar*)malloc ( edge_sz1 ) ) == NULL ) {
puts ( "edge_map can't alloc" ) ;
goto lb800 ;
}
if ( ( img_buf8 = (uchar*)malloc ( buf_sz1 ) ) == NULL ) {
puts ( "img_buf can't alloc" ) ;
goto lb800 ;
}
if ( big_img_sw1 == 0 ) {
x_read_bmp_image8 ( 0 , img_yl1 ) ;
x_mark_diff_point4 ( 0 , img_yl1 ) ;
x_compress4 ( 0 , img_yl1 ) ;
} else {
for ( oy1 = 0 ; oy1 + 512 < img_yl1 ; oy1 += 512 ) {
x_read_bmp_image8 ( oy1 , 512 ) ;
x_mark_diff_point4 ( oy1 , 512 ) ;
x_compress4 ( oy1 , 512 ) ;
}
syl1 = img_yl1 - oy1 ;
x_read_bmp_image8 ( oy1 , syl1 ) ;
x_mark_diff_point4 ( oy1 , syl1 ) ;
x_compress4 ( oy1 , syl1 ) ;
}
if ( verbose_mode != 0 ) printf ( "\n" ) ;
free ( img_buf8 ) ;
img_buf8 = NULL ;
free ( edge_map1 ) ;
edge_map1 = NULL ;
return ( 0 ) ;
lb800 :
if ( img_buf8 != NULL ) free ( img_buf8 ) ;
if ( edge_map1 != NULL ) free ( edge_map1 ) ;
return ( - 1 ) ;
}
/* ---------------------------------------------------------------- */
static int x_bmp_pic_conv8 ( void )
{
int big_img_sw1 , oy1 , syl1 ;
uint img_xl1 , img_yl1 ;
uint buf_sz1 ;
edge_map1 = NULL ;
img_buf8 = NULL ;
big_img_sw1 = 0 ;
if ( setjmp ( wenv1 ) != 0 ) goto lb800 ;
x_write_hdr ( 8 ) ;
x_conv_palette ( 8 ) ;
img_xl1 = bmp_inf_hdr . biWidth ;
img_yl1 = bmp_inf_hdr . biHeight ;
buf_xb1 = ( img_xl1 + 3 ) & ~ 3 ; /* BMP line width */
buf_yl1 = img_yl1 ;
if ( img_xl1 * img_yl1 > 1024 * 512 && img_yl1 > 512 ) {
buf_yl1 = 512 ;
big_img_sw1 = 1 ;
}
buf_sz1 = buf_xb1 * buf_yl1 ;
edge_xb1 = ( img_xl1 + 7 ) >> 3 ;
edge_sz1 = edge_xb1 * buf_yl1 ;
if ( ( edge_map1 = (uchar*)malloc ( edge_sz1 ) ) == NULL ) {
puts ( "edge_map can't alloc" ) ;
goto lb800 ;
}
if ( ( img_buf8 = (uchar*)malloc ( buf_sz1 ) ) == NULL ) {
puts ( "img_buf can't alloc" ) ;
goto lb800 ;
}
if ( big_img_sw1 == 0 ) {
x_read_bmp_image8 ( 0 , img_yl1 ) ;
x_mark_diff_point8 ( 0 , img_yl1 ) ;
x_compress8 ( 0 , img_yl1 ) ;
} else {
for ( oy1 = 0 ; oy1 + 512 < img_yl1 ; oy1 += 512 ) {
x_read_bmp_image8 ( oy1 , 512 ) ;
x_mark_diff_point8 ( oy1 , 512 ) ;
x_compress8 ( oy1 , 512 ) ;
}
syl1 = img_yl1 - oy1 ;
x_read_bmp_image8 ( oy1 , syl1 ) ;
x_mark_diff_point8 ( oy1 , syl1 ) ;
x_compress8 ( oy1 , syl1 ) ;
}
if ( verbose_mode != 0 ) printf ( "\n" ) ;
free ( img_buf8 ) ;
img_buf8 = NULL ;
free ( edge_map1 ) ;
edge_map1 = NULL ;
return ( 0 ) ;
lb800 :
if ( img_buf8 != NULL ) free ( img_buf8 ) ;
if ( edge_map1 != NULL ) free ( edge_map1 ) ;
return ( - 1 ) ;
}
/* ---------------------------------------------------------------- */
static int x_bmp_pic_conv24 ( void )
{
int big_img_sw1 , oy1 , syl1 ;
uint img_xl1 , img_yl1 ;
uint buf_sz1 ;
edge_map1 = NULL ;
img_buf16 = NULL ;
big_img_sw1 = 0 ;
if ( setjmp ( wenv1 ) != 0 ) goto lb800 ;
x_write_hdr ( 15 ) ;
img_xl1 = bmp_inf_hdr . biWidth ;
img_yl1 = bmp_inf_hdr . biHeight ;
buf_xb1 = img_xl1 * sizeof ( * img_buf16 ) ;
buf_yl1 = img_yl1 ;
if ( img_xl1 * img_yl1 > 1024 * 512 && img_yl1 > 512 ) {
buf_yl1 = 512 ;
big_img_sw1 = 1 ;
}
buf_sz1 = buf_xb1 * buf_yl1 ;
edge_xb1 = ( img_xl1 + 7 ) >> 3 ;
edge_sz1 = edge_xb1 * buf_yl1 ;
if ( ( edge_map1 = (uchar*)malloc ( edge_sz1 ) ) == NULL ) {
puts ( "edge_map can't alloc" ) ;
goto lb800 ;
}
if ( ( img_buf16 = (PIXEL *)malloc ( buf_sz1 ) ) == NULL ) {
puts ( "img_buf can't alloc" ) ;
goto lb800 ;
}
mk_cnvtbl ( ) ;
x_init_color_cash ( ) ;
if ( big_img_sw1 == 0 ) {
x_read_bmp_image24 ( 0 , img_yl1 ) ;
x_mark_diff_point16 ( 0 , img_yl1 ) ;
x_compress15 ( 0 , img_yl1 ) ;
} else {
for ( oy1 = 0 ; oy1 + 512 < img_yl1 ; oy1 += 512 ) {
x_read_bmp_image24 ( oy1 , 512 ) ;
x_mark_diff_point16 ( oy1 , 512 ) ;
x_compress15 ( oy1 , 512 ) ;
}
syl1 = img_yl1 - oy1 ;
x_read_bmp_image24 ( oy1 , syl1 ) ;
x_mark_diff_point16 ( oy1 , syl1 ) ;
x_compress15 ( oy1 , syl1 ) ;
}
if ( verbose_mode != 0 ) printf ( "\n" ) ;
free ( img_buf16 ) ;
img_buf16 = NULL ;
free ( edge_map1 ) ;
edge_map1 = NULL ;
return ( 0 ) ;
lb800 :
if ( img_buf16 != NULL ) free ( img_buf16 ) ;
if ( edge_map1 != NULL ) free ( edge_map1 ) ;
return ( - 1 ) ;
}
/* ---------------------------------------------------------------- */
static void x_write_hdr ( int cl_bit1 )
{
const char hed[] = "PIC/MM/XSS/:";
str_write ( (uchar *)hed ) ;
bit_write ( 8 , 0x1A ) ;
bit_write ( 8 , 0 ) ;
bit_write ( 16 , 0 ) ;
bit_write ( 16 , cl_bit1 ) ;
bit_write ( 16 , bmp_inf_hdr . biWidth ) ;
bit_write ( 16 , bmp_inf_hdr . biHeight ) ;
}
/* ---------------------------------------------------------------- */
static void str_write ( uchar *str_pt1 )
{
uchar wch1 ;
uchar * str_pt2 ;
str_pt2 = (uchar *)str_pt1 ;
while ( ( wch1 = * str_pt2 ++ ) != 0 ) bit_write ( 8 , wch1 ) ;
}
/* ---------------------------------------------------------------- */
static void x_conv_palette ( int cl_bit1 )
{
uint rgb_size1 , cl_max1 , cl_cnt1 , cl_cnt2 ;
RGB_QUAD * rgb_pt1 ;
if ( bmp_inf_hdr . biSize != sizeof ( bmp_inf_hdr ) ) {
if ( fseek ( bmp_f , sizeof ( bmp_fil_hdr ) + bmp_inf_hdr . biSize ,
SEEK_SET ) < 0 ) {
printf ( "%s can't seek (color table)\n" , bmp_fname_pt1 ) ;
longjmp ( wenv1 , 1 ) ;
}
}
cl_max1 = 1 << bmp_inf_hdr . biBitCount ;
if ( ( cl_cnt1 = bmp_inf_hdr . biClrUsed ) == 0 || cl_cnt1 > cl_max1 ) {
cl_cnt1 = cl_max1 ;
}
rgb_size1 = sizeof ( RGB_QUAD ) * cl_cnt1 ;
rgb_pt1 = (RGB_QUAD *) malloc ( rgb_size1 ) ;
if ( fread ( rgb_pt1 , 1,rgb_size1, bmp_f) != rgb_size1 ) {
printf ( "%s can't read (color table)\n" , bmp_fname_pt1 ) ;
longjmp ( wenv1 , 1 ) ;
}
cl_cnt2 = ( 1 << cl_bit1 ) - cl_cnt1 ;
while ( cl_cnt1 -- ) {
bit_write ( 16 , ( RGB ( rgb_pt1 -> rgbRed >> 3 ,
rgb_pt1 -> rgbGreen >> 3 ,
rgb_pt1 -> rgbBlue >> 3 ) - 1 )) ;
rgb_pt1 ++ ;
}
while ( cl_cnt2 -- ) bit_write ( 16 , 0 ) ;
}
/* ---------------------------------------------------------------- */
static void x_read_bmp_image8 ( int oy1 , int syl1 )
{
uint wlen1 ;
if ( fseek ( bmp_f , bmp_fil_hdr . bfOffBits +
buf_xb1 * ( bmp_inf_hdr . biHeight - oy1 - syl1 ) ,
SEEK_SET ) < 0 ) {
printf ( "%s can't seek (image data)\n" , bmp_fname_pt1 ) ;
goto lb800 ;
}
wlen1 = buf_xb1 * syl1 ;
if ( fread ( img_buf8 , 1, wlen1, bmp_f ) != wlen1 ) {
printf ( "%s can't read (image data)\n" , bmp_fname_pt1 ) ;
goto lb800 ;
}
return ;
lb800 :
longjmp ( wenv1 , 1 ) ;
}
/* ---------------------------------------------------------------- */
static void x_mark_diff_point1 ( int oy1 , int syl1 )
{
int sy1 , bx1 , xcnt1 ;
uint img_xl1 ;
char cl1 , wch1 , wedge1 , wverbose1 ;
uchar * edge_map_pt1 ;
uchar * img_buf_pt1 ;
cl1 = 0 ;
sy1 = syl1 ;
img_xl1 = bmp_inf_hdr . biWidth ;
edge_map_pt1 = edge_map1 + syl1 * edge_xb1 ;
img_buf_pt1 = img_buf8 + syl1 * buf_xb1 ;
wverbose1 = verbose_mode ;
while ( -- sy1 >= 0 ) {
edge_map_pt1 -= edge_xb1 ;
img_buf_pt1 -= buf_xb1 ;
if ( wverbose1 != 0 ) printf ( "\rd line = %d " , ++ oy1 ) ;
bx1 = 0 ;
xcnt1 = img_xl1 >> 3 ;
while ( xcnt1 -- ) {
wch1 = img_buf_pt1 [ bx1 ] ;
wedge1 = ( wch1 >> 1 ) ^ wch1 ;
if ( cl1 != 0 ) wedge1 ^= 0x80 ;
edge_map_pt1 [ bx1 ] = wedge1 ;
cl1 = wch1 & 1 ;
bx1 ++ ;
}
if ( ( xcnt1 = img_xl1 & 7 ) != 0 ) {
wch1 = img_buf_pt1 [ bx1 ] ;
wedge1 = ( wch1 >> 1 ) ^ wch1 ;
if ( cl1 != 0 ) wedge1 ^= 0x80 ;
edge_map_pt1 [ bx1 ] = wedge1 ;
cl1 = ( wch1 >> ( 8 - xcnt1 ) ) & 1 ;
}
}
}
/* ---------------------------------------------------------------- */
static void x_compress1 ( int oy1 , int syl1 )
{
int sx1 , sy1 , bx1 , xcnt1 ;
uint img_xl1 ;
uchar cl1 , wedge1 , wverbose1 ;
uchar wmask1;
int wlen1 ;
uchar * edge_map_pt1 ;
uchar * img_buf_pt1 ;
wlen1 = 0 ;
sy1 = syl1 ;
img_xl1 = bmp_inf_hdr . biWidth ;
edge_map_pt1 = edge_map1 + syl1 * edge_xb1 ;
img_buf_pt1 = img_buf8 + syl1 * buf_xb1 ;
wverbose1 = verbose_mode ;
while ( -- sy1 >= 0 ) {
edge_map_pt1 -= edge_xb1 ;
img_buf_pt1 -= buf_xb1 ;
if ( wverbose1 != 0 ) printf ( "\rc line = %d " , ++ oy1 ) ;
sx1 = 0 ;
bx1 = 0 ;
xcnt1 = img_xl1 >> 3 ;
while ( xcnt1 -- ) {
wedge1 = edge_map_pt1 [ bx1 ] ;
for ( wmask1 = 0x80 ; wmask1 != 0 ; wmask1 >>= 1 ) {
wlen1 ++ ;
if ( ( wedge1 & wmask1 ) != 0 ) {
cl1 = ( img_buf_pt1 [ bx1 ] & wmask1 ) != 0 ;
write_len ( wlen1 ) ;
bit_write ( 4 , cl1 ) ;
x_compress_chain1 ( sx1 , sy1 , edge_map_pt1 , img_buf_pt1 , cl1 ) ;
wlen1 = 0 ;
}
sx1 ++ ;
}
bx1 ++ ;
}
if ( ( xcnt1 = img_xl1 & 7 ) != 0 ) {
wedge1 = edge_map_pt1 [ bx1 ] ;
wmask1 = 0x80 ;
while ( xcnt1 -- ) {
wlen1 ++ ;
if ( ( wedge1 & wmask1 ) != 0 ) {
cl1 = ( img_buf_pt1 [ bx1 ] & wmask1 ) != 0 ;
write_len ( wlen1 ) ;
bit_write ( 4 , cl1 ) ;
x_compress_chain1 ( sx1 , sy1 , edge_map_pt1 , img_buf_pt1 , cl1 ) ;
wlen1 = 0 ;
}
sx1 ++ ;
wmask1 >>= 1 ;
}
}
}