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X128_FSL.C
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/******************************************/
/** **/
/** X128_FSL Portable File **/
/** **/
/** (C) James McKay 1996 **/
/** **/
/** This software may not be used **/
/** for commercial reasons, the code **/
/** may not be modified or reused **/
/** without permission. **/
/** **/
/******************************************/
/** **/
/** Special Guest Stars : **/
/** **/
/** Marat Fayzullin 1995 (Unix & Ideas) **/
/** Arnold Metselaar 1995 (More Unix) **/
/******************************************/
#ifdef MSDOS_SYSTEM
#ifndef __BORLANDC__
#include <direct.h>
#define EXTENDED_READDIR
#else
#include <dirent.h>
#endif
#else
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
#include <dirent.h>
#endif
#include <ctype.h>
#include <sys/stat.h>
#include <sys/types.h>
#define XDIR 1
#define XFILE 2
#define XDRIVE 3
#define NO_OF_SCR_MODE 2
char *scr_mode[NO_OF_SCR_MODE+1]=
{"Normal","Big"};
void itoa_temp(char *str_num, UC number); /* In X128_TAP.C */
void wtoa_temp(char *str_word, word number);
void scr_write_letter(UC x, UC y, UC attr, UC letter)
{
word position;
UC temp;
SP_SCREEN[6144|(y*32)+x]=attr;
position=spline[y*8]+x;
for(temp=0;temp<8;temp++)
{
SP_SCREEN[position]=ROM[2][15616+((letter-' ')*8)+temp];
position+=256;
}
}
void scr_write_string(UC x, UC y, UC attr, char *stringy)
{
while(stringy[0]!='\0')
{
scr_write_letter(x,y,attr,stringy[0]);
stringy++;
x++;
if(x==32) {x=0;y++;}
}
}
void scr_write_string_limit(UC x, UC y, UC attr, char *stringy, UC size)
{
while((stringy[0]!='\0')&&(size))
{
size--;
scr_write_letter(x,y,attr,stringy[0]);
stringy++;
x++;
if(x==32) {x=0;y++;}
}
}
void make_box(UC x1, UC y1, UC x2, UC y2, UC attr)
{
UC x, y;
for(x=x1;x<x2;x++)
{
for(y=y1;y<y2;y++)
{
scr_write_letter(x,y,attr,' ');
}
}
}
UC different_extension(char *select_string,char *filename)
{
char *temp_str;
word pos;
UC len_of_ss;
if(select_string[0]=='\0') return 1;
pos=strlen(filename);
len_of_ss=strlen(select_string);
if(pos>len_of_ss)
{
pos-=len_of_ss;
}
else
{
return 1; /* It couldn't possibly have the extension */
}
temp_str=filename;
temp_str+=pos;
pos=0;
while(pos<len_of_ss)
{
if(tolower(select_string[pos])!=tolower(temp_str[pos]))
{
return 1;
}
pos++;
}
return 0;
}
int sort_function( const void *a, const void *b)
{
/*return( strcmp((char *)a,(char *)b) );*/
int ret_val, pos, len_of_larger;
char *aa, *bb;
aa=(char *)a;
bb=(char *)b;
len_of_larger=strlen(aa);
pos=strlen(bb);
if(pos>len_of_larger) len_of_larger=pos;
ret_val=pos=0;
while((!ret_val)&&(pos<len_of_larger))
{
ret_val=tolower(aa[pos])-tolower(bb[pos]);
pos++;
}
return ret_val;
}
sign16 get_dir(char *select_string_1, char *select_string_2, char *select_string_3)
{
DIR *dir;
struct dirent *ent;
struct stat stbuf;
char fullpath[MAXPATH];
sign16 number_got;
word pos, x;
unsigned long useful;
UC snipped, drv_num;
int cut_point;
number_got=snipped=0;
pos=strlen(the_path);
pos--;
#ifdef MSDOS_SYSTEM
if(pos!=2)
{
the_path[pos]='\0'; /* Watcom */
snipped=1;
}
#else
if(pos)
{
the_path[pos]='\0';
snipped=1;
}
#endif
if ((dir = opendir(the_path)) == NULL)
{
#ifndef NON_WINDOWS
printf("Could not open directory\n");
perror("Error:");
#endif
return 32767;
}
if(snipped)
{
#ifdef MSDOS_SYSTEM
strcat(the_path,"\\"); /* Watcom */
#else
strcat(the_path,"/");
#endif
}
while ((ent = readdir(dir)) != NULL)
{
#ifndef EXTENDED_READDIR
strcpy(FNAME+(number_got*UNIT_SIZE)+1,ent->d_name);
number_got++;
#else
if(ent->d_attr&_A_VOLID) continue;
strcpy(FNAME+(number_got*UNIT_SIZE)+1,ent->d_name);
if(ent->d_attr&_A_SUBDIR)
{
FNAME[number_got*UNIT_SIZE]=XDIR;
}
else
{
FNAME[number_got*UNIT_SIZE]=XFILE;
}
number_got++;
#endif
}
if (closedir(dir) != 0)
{
#ifndef NON_WINDOWS
printf("Warning:: Could not close directory\n");
perror("Error:");
#endif
}
#ifndef EXTENDED_READDIR
strcpy(fullpath,the_path);
cut_point=strlen(fullpath);
for(pos=0;pos<number_got;pos++)
{
useful=pos*UNIT_SIZE;
fullpath[cut_point]='\0';
strcat(fullpath,FNAME+useful+1);
stat((char *)fullpath,&stbuf);
if((stbuf.st_mode & S_IFMT)==S_IFDIR)
{
FNAME[useful]=XDIR;
}
else
{
FNAME[useful]=XFILE;
}
}
#endif
for(pos=0;pos<number_got;pos++)
{
useful=pos*UNIT_SIZE;
if(FNAME[useful]==XDIR)
{
if(!(strcmp(FNAME+useful+1,".")))
{
for(x=pos;x<number_got;x++)
{
memcpy(FNAME+(x*UNIT_SIZE),FNAME+((x+1)*UNIT_SIZE),UNIT_SIZE);
}
number_got--;
pos--;
}
}
if(FNAME[useful]==XFILE)
{
if(different_extension(select_string_1,FNAME+useful+1)
+different_extension(select_string_2,FNAME+useful+1)
+different_extension(select_string_3,FNAME+useful+1)==2)
{
/* Do nothing */
}
else
{
/* move above stuff down one */
for(x=pos;x<number_got;x++)
{
memcpy(FNAME+(x*UNIT_SIZE),FNAME+((x+1)*UNIT_SIZE),UNIT_SIZE);
}
number_got--;
pos--;
}
}
}
qsort((void*)FNAME,number_got,UNIT_SIZE,sort_function);
#ifdef MSDOS_SYSTEM
for(drv_num=1;drv_num<27;drv_num++)
{
if(drives[drv_num][0]!='\0')
{
FNAME[number_got*UNIT_SIZE]=XDRIVE;
strcpy(FNAME+(number_got*UNIT_SIZE)+1,drives[drv_num]);
number_got++;
}
}
#endif
return number_got;
}
void scr_copy(void)
{
old_screen=SP_SCREEN;
memcpy(BUFFER,SP_SCREEN,6912);
SP_SCREEN=BUFFER;
}
void scr_restore(void)
{
SP_SCREEN=old_screen;
}
void help_scr(void)
{
UC y, done, old_value, old_y;
static UC value=0;
char str_num[4], str_word[6];
int adder;
release_keyboard();
scr_copy();
make_box(2,1,30,22,79);
old_y=y=4;
scr_write_string(10,y-2,79,"HELP SCREEN");
scr_write_string(5,y++,79,"F1 : This screen.");
scr_write_string(5,y++,79,"F2 : Multiface 128.");
scr_write_string(5,y++,79,"F3 : Select Mem.Model.");
scr_write_string(5,y++,79,"F4 : Joystick Select.");
scr_write_string(5,y++,79,"F5 : Load Z80/SNA/SLT.");
scr_write_string(5,y++,79,"F6 : Save Z80/SLT File.");
scr_write_string(5,y++,79,"F7 : Select TAP/VOC File.");
scr_write_string(5,y,79,"Alter ULA Delay");
itoa_temp(str_num,ULA_delay);
scr_write_string(21,y++,79,str_num);
scr_write_string(5,y++,79,"F8 : VOC Options.");
scr_write_string(5,y++,79,"F10: Quit.");
scr_write_string(5,y++,79,"F11: Sound Option");
scr_write_string(5,y,79,"Keyboard Issue :");
if(keyboard_issue==191)
{
scr_write_letter(22,y++,79,'3');
}
else
{
scr_write_letter(22,y++,79,'2');
}
scr_write_string(5,y,79,"Alter Screen Skip");
scr_write_string(23,y,79,"1/");
itoa_temp(str_num,frame_skip);
scr_write_string(25,y++,79,str_num);
scr_write_string(5,y,79,"Alter Slow Down");
wtoa_temp(str_word,slow_down);
scr_write_string(22,y++,79,str_word);
scr_write_string(5,y+1,79,"PRESS ESCAPE TO RETURN.");
scr_write_string(4,y+3,79,"x128 V0.5 By James McKay");
RePaintScreen();
done=0;
old_value=value;
while(!done)
{
scr_write_letter(4,value+old_y,121,'>');
RePaintScreen();
switch(fsl_extend_key())
{
case X128_ESCAPE:
done=2;
break;
case X128_RETURN:
adder=0;
done=1;
break;
case X128_UP:
scr_write_letter(4,value+old_y,79,' ');
if(--value==255) value=13;
break;
case X128_DOWN:
scr_write_letter(4,value+old_y,79,' ');
value=(++value)%14;
break;
case X128_LEFT:
adder=-1;
if((value==7)||(value==12)||(value==13)) done=1;
break;
case X128_RIGHT:
adder=+1;
if((value==7)||(value==12)||(value==13)) done=1;
break;
case X128_PAGE_UP: case X128_KP_MINUS:
adder=-10;
if((value==7)||(value==12)||(value==13)) done=1;
break;
case X128_PAGE_DOWN: case X128_KP_PLUS:
adder=+10;
if((value==7)||(value==12)||(value==13)) done=1;
break;
default:
break;
}
}
if(done==2)
{
value=old_value;
quit=DONT_QUIT; /* Not in main due to below */
}
else
{
switch(value)
{
case 0 : quit=QUIT_HELP;break;
case 1 : quit=QUIT_NMI;break;
case 2 : quit=QUIT_RESET;ret_to_help=1;break;
case 3 : quit=QUIT_JOY;ret_to_help=1;break;
case 4 : quit=QUIT_LOAD;ret_to_help=1;break;
case 5 : quit=QUIT_SAVE;ret_to_help=1;break;
case 6 : quit=QUIT_TAP;break;
case 7 :
ULA_delay+=adder;
quit=QUIT_HELP;
break;
case 8 : quit=QUIT_VOC;break;
case 9 : quit=QUIT_COMPLETELY;break;
case 10: quit=QUIT_SOUND;ret_to_help=1;break;
case 11:
if(keyboard_issue==191)
{
keyboard_issue=255;
}
else
{
keyboard_issue=191;
}
quit=QUIT_HELP;
break;
case 12:
frame_skip+=adder;
quit=QUIT_HELP;
break;
case 13:
slow_down+=adder;
quit=QUIT_HELP;
break;
default:
quit=DONT_QUIT;
break;
}
}
scr_restore();
init_keyboard();
}
UC reset_spectrum(UC what_to_do)
{
static UC stored_value=0;
UC old_value, done, quit;
if(what_to_do==255)
{
release_keyboard();
scr_copy();
make_box(2,3,30,19,79);
scr_write_string(7,4,79,"MEMORY MODE SELECT");
scr_write_string(6, 7,79,"Reset To 128K Mode");
scr_write_string(6, 8,79,"Reset To 48K Mode");
scr_write_string(6, 9,79,"128K Mode, no reset");
scr_write_string(6,10,79,"48K Mode, no reset");
scr_write_string(6,13,79,"Current Mode :");
if(model_48)
{
scr_write_string(21,13,79,"48K.");
}
else
{
scr_write_string(21,13,79,"128K.");
}
scr_write_string(5,15,79,"PRESS ENTER TO SELECT.");
scr_write_string(5,17,79,"PRESS ESCAPE TO RETURN.");
done=quit=0;
old_value=stored_value;
while((!done)&&(!quit))
{
scr_write_letter(5,old_value+7,121,'>');
RePaintScreen();
switch(fsl_extend_key())
{
case X128_ESCAPE:
quit=1;
break;
case X128_RETURN:
done=1;
break;
case X128_UP:
scr_write_letter(5,old_value+7,79,' ');
if(--old_value==255) old_value=3;
break;
case X128_DOWN:
scr_write_letter(5,old_value+7,79,' ');
old_value=(++old_value)%4;
break;
default:
break;
}
}
scr_restore();
init_keyboard();
if(done)
{
stored_value=old_value;
return old_value;
}
return 255;
}
else
{
return what_to_do;
}
}
void joystick(void)
{
UC old_joy_type, old_curs_caps, done, quit;
release_keyboard();
scr_copy();
make_box(2,3,30,19,79);
scr_write_string(8,4,79,"JOYSTICK SELECT");
scr_write_string(5, 6,79,"Left/Right Caps On/Off");
scr_write_string(6, 8,79,"Cursors Keys");
if(curs_caps) scr_write_string(19,8,79,"(+Caps)");
scr_write_string(6, 9,79,"Kempston (IN 31)");
scr_write_string(6,10,79,"Sinclair 1 (1-5)");
scr_write_string(6,11,79,"Sinclair 2 (6-0)");
scr_write_string(5,15,79,"PRESS ENTER TO SELECT.");
scr_write_string(5,17,79,"PRESS ESCAPE TO RETURN.");
done=quit=0;
old_joy_type=joy_type;
old_curs_caps=curs_caps;
while((!done)&&(!quit))
{
scr_write_letter(5,joy_type+8,121,'>');
RePaintScreen();
switch(fsl_extend_key())
{
case X128_ESCAPE:
quit=1;
break;
case X128_RETURN:
done=1;
break;
case X128_UP:
scr_write_letter(5,joy_type+8,79,' ');
if(--joy_type==255) joy_type=3;
break;
case X128_DOWN:
scr_write_letter(5,joy_type+8,79,' ');
joy_type=(++joy_type)%4;
break;
case X128_LEFT:
case X128_RIGHT:
curs_caps^=1;
if(curs_caps)
{
scr_write_string(19,8,79,"(+Caps)");
}
else
{
scr_write_string(19,8,79," ");
}
break;
default:
break;
}
}
if(quit)
{
joy_type=old_joy_type;
curs_caps=old_curs_caps;
}
scr_restore();
init_keyboard();
}
void show_bar(sign16 page_select)
{
switch(FNAME[page_select*UNIT_SIZE])
{
case XDIR:
scr_write_string_limit(FSL_WIN_START+3,1,121,FNAME+(page_select*UNIT_SIZE)+1,FNAME_SIZE);
break;
default:
scr_write_string_limit(FSL_WIN_START+2,1,121,FNAME+(page_select*UNIT_SIZE)+1,FNAME_SIZE);
break;
}
}
void display_page(sign16 lowest, sign16 highest_found)
{
UC x,y,spos;
make_box(FSL_WIN_START,1,FSL_WIN_START+FSL_WIN_WIDTH,23,79);
spos=1;
if(lowest)
{
scr_write_string(13,0,48,"<MORE>");
}
else
{
scr_write_string(13,0,48,"<<<>>>");
}
if(lowest<highest_found-1)
{
scr_write_string(13,23,48,"<MORE>");
}
else
{
scr_write_string(13,23,48,"<<<>>>");
}
while((lowest<highest_found)&&(spos<23))
{
x=FSL_WIN_START+2;
y=spos;
switch(FNAME[lowest*UNIT_SIZE])
{
case XDIR : /* Directory */
scr_write_letter(x,y,88,'/');
scr_write_string_limit(x+1,y,88,FNAME+(lowest*UNIT_SIZE)+1,FNAME_SIZE);
break;
case XFILE : /* File */
scr_write_string_limit(x,y,79,FNAME+(lowest*UNIT_SIZE)+1,FNAME_SIZE);
break;
case XDRIVE : /* Drive */
scr_write_string_limit(x,y,40,FNAME+(lowest*UNIT_SIZE)+1,FNAME_SIZE);
break;
default:
scr_write_string(x,y,7,"<ERROR>");
break;
}
spos++;
lowest++;
}
}
void strip_file(char *stringy)
{
UC special;
word pos;
pos=strlen(stringy);
pos--;
special=0;
if((stringy[pos]=='/')||(stringy[pos]=='\\')) return;
while((stringy[pos]!='/')&&(stringy[pos]!='\\')&&(!special))
{
stringy[pos]='\0';
pos--;
#ifdef MSDOS_SYSTEM
if(pos<=2)
{
special=1;
stringy[1]='\0';
strcat(stringy,":\\");
}
#else
if(!pos)
{
special=1;
strcpy(stringy,"/");
}
#endif
}
}
void dot_dot(void)
{
UC special;
word pos, temp_len;
char temp_str[MAXPATH];
pos=strlen(the_path);
pos--;
special=0;
strcpy(temp_str,"");
if((the_path[pos]=='/')||(the_path[pos]=='\\')) pos--;
while((the_path[pos]!='/')&&(the_path[pos]!='\\')&&(!special))
{
pos--;
if((the_path[pos]=='/')||(the_path[pos]=='\\'))
{
strcpy(temp_str,(char *)the_path+pos+1);
}
#ifdef MSDOS_SYSTEM
if(pos<=2)
{
special=1;
the_path[1]='\0';
strcat(the_path,":\\");
}
#else
if(!pos)
{
special=1;
strcpy(the_path,"/");
}
#endif
}
temp_len=strlen(temp_str);
if((temp_str[temp_len-1]=='/')||(temp_str[temp_len-1]=='\\'))
{
temp_str[temp_len-1]='\0';
}
strcpy(prev_dir,(char *)temp_str);
if(!special) the_path[pos+1]='\0';
}
void dir_cat(char *addable)
{
strcat(the_path,addable);
strcat(the_path,"/");
}
UC input_string(UC y_i,char *title)
{
UC x, y;
word pos, ascii_val;
scr_copy();
strip_file(the_path);
release_keyboard();
make_box(0,y_i,32,y_i+13,79);
scr_write_string(1,y_i+1,79,title);
scr_write_string(0,y_i+3,79,the_path);
y=strlen(the_path)/32;
x=strlen(the_path)-(32*y);
y+=y_i+3;
scr_write_letter(x,y,127,' ');
RePaintScreen();
while(1)
{
ascii_val=fsl_asciiext_key();
pos=strlen(the_path);
switch(ascii_val)
{
case X128_ESCAPE:
scr_restore();
init_keyboard();
return 1;
case X128_BACKSPACE: case X128_DELETE:
if(strlen(the_path)>0)
{
pos--;
the_path[pos]='\0';
scr_write_letter(x,y,79,' ');
x--; if(x==255) {x=31;y--;}
scr_write_letter(x,y,127,' ');
RePaintScreen();
}
break;
case X128_RETURN:
scr_restore();
init_keyboard();
return 0;
default:
if(pos+1<MAXPATH)
{
the_path[pos]=(UC)(ascii_val&255);
scr_write_letter(x,y,79,ascii_val&255);
x++; if(x==32) {x=0;y++;}
scr_write_letter(x,y,127,' ');
RePaintScreen();
}
break;
}
}
}
void sound_options(void)
{
static UC s_type=0;
UC done, old_y, y, update;
release_keyboard();
scr_copy();
done=quit=0;
update=1;
while((!done)&&(!quit))
{
if(update)
{
make_box(2,3,30,19,79);
scr_write_string(9,4,79,"SOUND OPTIONS");
old_y=y=6;
scr_write_string(6,y,79,"Sound Is ");
if(!all_sound_on)
{
scr_write_string(15,y++,79,"Off.");
}
else
{
scr_write_string(15,y++,79,"On. ");
}
if(!PSG_open)
{
scr_write_string(6,y++,79,"Create PSG File");
}
else
{
scr_write_string(6,y++,79,"Close PSG File");
}
scr_write_string(6,y,79,"White Noise Is ");
if(!white_noise)
{
scr_write_string(21,y++,79,"Off.");
}
else
{
scr_write_string(21,y++,79,"On.");
}
scr_write_string(5,15,79,"PRESS ENTER TO SELECT.");
scr_write_string(5,17,79,"PRESS ESCAPE TO RETURN.");
update=0;
}
scr_write_letter(5,s_type+old_y,121,'>');
RePaintScreen();
switch(fsl_extend_key())
{
case X128_ESCAPE:
quit=1;
break;
case X128_RETURN:
done=1;
break;
case X128_UP:
scr_write_letter(5,s_type+old_y,79,' ');
if(--s_type==255) s_type=2;
break;
case X128_DOWN:
scr_write_letter(5,s_type+old_y,79,' ');
s_type=(++s_type)%3;
break;
case X128_LEFT:
case X128_RIGHT:
switch(s_type)
{
case 0: all_sound_on^=1;break;
case 2: white_noise^=1;break;
default: break;
}
update=1;
break;
default:
break;
}
if(done)
{
switch(s_type)
{
case 1:
if(PSG_open)
{
fclose(p_handle);
PSG_open=0;
}
else
{
scr_restore();
init_keyboard();
if(!(input_string(4,"Create PSG File")))
{
PSG_open=1;
save_PSG();
}
release_keyboard();
scr_copy();
}
break;
default:
break;
}
update=1;
done=0;
}
}
scr_restore();
init_keyboard();
}
UC search_prev_dir(UC highest_found)
{
word x;
for(x=0;x<highest_found;x++)
{
if(!(strcmp(prev_dir,FNAME+(UNIT_SIZE*x)+1)))
{
return x;
}
}
return 0;
}
sign16 find_letter(char *search_str,sign16 page_select,
sign16 highest_found,UC *found)
{
char other[MAXPATH];
sign16 old_page_select, x;
old_page_select=page_select;
if(strlen(search_str)==1) page_select=0;
while(page_select<highest_found)
{
if(FNAME[page_select*UNIT_SIZE]==XFILE)
{
strcpy(other,FNAME+(page_select*UNIT_SIZE)+1);
for(x=0;x<strlen(other);x++) other[x]=tolower(other[x]);
if(!(strncmp(search_str,other,strlen(search_str))))
{
*found=1;
return page_select;
}
}
page_select++;
}
*found=0;
return old_page_select;
}
UC test_fsl(char *select_string_1, char *select_string_2, char *select_string_3)
{
UC x, y, quit, chosen, reread, dotdot_prev;
UC letter_search, found;
sign16 highest_found, page_select, temp_index, temp_int;
sign16 pos, temp_ps;
char temp_str[MAXPATH], temp_str2[MAXPATH], old_prev_dir[MAXPATH];
char search_str[MAXPATH];
word ascii_val;
dotdot_prev=0;
if(!(FNAME=(UC *)malloc(FSL_BUFF)))
{
return 1; /* Can't Allocate Memory */
}
else
{
memset(FNAME,0,FSL_BUFF);
}
release_keyboard();
strcpy(temp_str,the_path);
temp_index=global_index;
strip_file(the_path);
scr_copy();
scr_write_string(0,0,79,select_string_1);
scr_write_string(0,1,79,select_string_2);
scr_write_string(0,2,79,select_string_3);
quit=chosen=0;
page_select=global_index;
reread=2; /* Don't overwrite page_select */
while((!quit)&&(!chosen))
{
if(reread)
{
temp_int=get_dir(select_string_1,select_string_2,select_string_3);
if(temp_int!=32767)
{
highest_found=temp_int;
if(dotdot_prev)
{
page_select=search_prev_dir(highest_found);
reread=2;
}
}
else
{
reread=2;
strcpy(the_path,temp_str2);
strcpy(prev_dir,old_prev_dir);
}
if(reread==1)
{
page_select=0;
}
reread=0;
}
display_page(page_select,highest_found);
show_bar(page_select);
RePaintScreen();
letter_search=0;
switch(ascii_val=fsl_asciiext_key())
{
case X128_UP:
if(page_select) page_select--;
break;
case X128_DOWN:
if(page_select<highest_found-1)
{