Tape browser

This commit is contained in:
fabio.olimpieri 2013-03-16 07:59:05 +00:00
parent a342c03cfb
commit ff739e4e01
2 changed files with 431 additions and 0 deletions

394
src/tape_browser.c Normal file
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/*
* Copyright (C) 2012 Fabio Olimpieri
* Copyright 2003-2009 (C) Raster Software Vigo (Sergio Costas)
* This file is part of FBZX Wii
*
* FBZX Wii is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* FBZX Wii is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "z80free/Z80free.h"
#include "computer.h"
#include "emulator.h"
#include "tape_browser.h"
#include "tape.h"
#ifdef DEBUG
extern FILE *fdebug;
#define printf(...) fprintf(fdebug,__VA_ARGS__)
#else
#ifdef GEKKO
#define printf(...)
#endif
#endif
struct browser *browser_list[MAX_BROWSER_ITEM+1];
void browser_tzx (FILE * fichero) {
unsigned int longitud, len, bucle, byte_position, retorno, block_number;
unsigned char value[65536], empty, blockid, pause[2], flag_byte;
int retval, retval2;
longitud =0;
pause[0]=pause[1]=0;
blockid=0;
flag_byte=0;
empty=file_empty(fichero);
if (fichero == NULL)
{
sprintf (ordenador.osd_text, "No tape selected");
ordenador.osd_time = 100;
return;
}
if(empty)
{
sprintf (ordenador.osd_text, "Tape file empty");
return;
}
//Free the browser list
for(bucle=0; ((browser_list[bucle]!=NULL)&&(bucle<MAX_BROWSER_ITEM)); bucle++)
{
free (browser_list[bucle]);
browser_list[bucle]=NULL;
}
retorno=0;
block_number=0;
do {
byte_position=ftell(fichero);
retval=fread (&blockid, 1, 1, fichero); //Read id block
if (retval!=1) {retorno=1;break;}
browser_list[block_number]=(struct browser *)malloc(sizeof(struct browser));
//if (browser_list[block_number]==NULL) retorno=1;
browser_list[block_number]->position=byte_position;
strcpy(browser_list[block_number]->info, " ");
printf("TZX: browser: %X en %d\n",blockid, byte_position);
switch(blockid) {
case 0x10: // classic tape block
strcpy(browser_list[block_number]->block_type,"Standard speed data");
retval=fread (pause, 1, 2, fichero); //pause lenght
retval2=fread (value, 1, 2, fichero); // read length of current block
if ((retval!=2)||(retval2!=2)) {retorno=1;break;}
longitud = ((unsigned int) value[0]) + 256 * ((unsigned int) value[1]);
retval=fread (&flag_byte, 1, 1, fichero);
if (retval!=1) {retorno=1;break;}
switch(flag_byte)
{
case 0x00: //header
retval=fread (value, 1, 18, fichero);
if (retval!=18) {retorno=1;break;}
value[11]=0;
for(bucle=1;bucle<11;bucle++)
if (value[bucle]<' ') value[bucle]='?'; //not printable character
switch(value[0] ) //Type
{
case 0x00: //PROG
sprintf(browser_list[block_number]->info,"Program: %s", value+1);
break;
case 0X01: //DATA
sprintf(browser_list[block_number]->info,"Number array: %s", value+1);
case 0X02:
sprintf(browser_list[block_number]->info,"Character array: %s", value+1);
case 0X03:
sprintf(browser_list[block_number]->info,"Code: %s", value+1);
break;
default: //??
strcpy(browser_list[block_number]->info,"???");
break;
}
break;
case 0xFF: //data
sprintf(browser_list[block_number]->info,"Standard Data: %d bytes", longitud);
if (longitud>1)
{
retval=fread (value, 1, longitud-1, fichero);
if (retval!=(longitud-1)) {retorno=1;break;}
}
break;
default: //Custom data
sprintf(browser_list[block_number]->info,"Custom Data: %d bytes", longitud);
if (longitud>1)
{
retval=fread (value, 1, longitud-1, fichero);
if (retval!=(longitud-1)) {retorno=1;break;}
}
break;
}
break;
case 0x11: // turbo
strcpy(browser_list[block_number]->block_type,"Turbo speed data ");
retval=fread(value,1,0x0F, fichero);
retval=fread (value, 1,3 ,fichero); // read length of current block
if (retval!=3) {retorno=1;break;}
longitud = ((unsigned int) value[0]) + 256 * ((unsigned int) value[1])+ 65536 * ((unsigned int) value[2]);
sprintf(browser_list[block_number]->info,"%d bytes", longitud);
for(bucle=0;bucle<longitud;bucle++)
retval=fread(value,1,1, fichero);
break;
case 0x12: // pure tone
strcpy(browser_list[block_number]->block_type,"Pure tone ");
retval=fread(value,1,4,fichero);
if (retval!=4) {retorno=1;break;}
longitud = ((unsigned int) value[2]) + 256 * ((unsigned int) value[3]);
sprintf(browser_list[block_number]->info,"%d pulses", longitud);
break;
case 0x13: // multiple pulses
strcpy(browser_list[block_number]->block_type,"Pulse sequence ");
retval=fread(value,1,1,fichero); // number of pulses
if (retval!=1) {retorno=1;break;}
sprintf(browser_list[block_number]->info,"%d pulses", value[0]);
if(value[0] != 0)
{
retval=fread(&value,1,2*value[0],fichero); // length of pulse in T-states
}
break;
case 0x14: // Pure data
strcpy(browser_list[block_number]->block_type,"Pure data ");
retval=fread(value,1,0x07, fichero);
retval=fread (value, 1, 3, fichero); // read length of current block
if (retval!=3) {retorno=1;break;}
longitud = ((unsigned int) value[0]) + 256 * ((unsigned int) value[1])+ 65536 * ((unsigned int) value[2]);
sprintf(browser_list[block_number]->info,"%d bytes", longitud);
for(bucle=0;bucle<longitud;bucle++)
retval=fread(value,1,1, fichero);
break;
case 0x20: // pause
retval=fread(value,1,2,fichero);
if (retval!=2) {retorno=1;break;}
longitud = ((unsigned int) value[0]) + 256 * ((unsigned int) value[1]);
if (longitud==0) strcpy(browser_list[block_number]->block_type,"Stop tape ");
else
{
strcpy(browser_list[block_number]->block_type,"Pause: ");
sprintf(browser_list[block_number]->info,"%d ms", longitud);
}
break;
case 0x21: // group start
strcpy(browser_list[block_number]->block_type,"Group start ");
retval=fread(value,1,1,fichero);
if (retval!=1) {retorno=1;break;}
len = (unsigned int) value[0];
retval=fread(value,1,len,fichero);
if (len>31) len=31;
value[len]=0;
strcpy(browser_list[block_number]->info,value);
break;
case 0x22: // group end
strcpy(browser_list[block_number]->block_type,"Group end ");
break;
case 0x24: // loop start
strcpy(browser_list[block_number]->block_type,"Loop start ");
retval=fread(value,1,2, fichero);
break;
case 0x25: // loop end
strcpy(browser_list[block_number]->block_type,"Loop end ");
break;
case 0x28: // select block
strcpy(browser_list[block_number]->block_type,"Select block ");
retval=fread(value,1,2,fichero);
if (retval!=2) {retorno=1;break;}
len = ((unsigned int) value[0]) + 256 * ((unsigned int) value[1]);
retval=fread(value,1,len,fichero);
sprintf(browser_list[block_number]->info,"%d selections", value[0]);
break;
case 0x2A: // pause if 48K
strcpy(browser_list[block_number]->block_type,"Stop tape if 48K mode");
retval=fread(value,1,4,fichero);
break;
case 0x30: // text description
strcpy(browser_list[block_number]->block_type,"Text: ");
retval=fread(value,1,1,fichero); // length
if (retval!=1) {retorno=1;break;}
len = (unsigned int) value[0] ;
retval=fread(value,1,len,fichero);
if (retval!=len) {retorno=1;break;}
if (len>31) len=31;
value[len]=0;
for(bucle=0;bucle<len;bucle++)
if (value[bucle]<' ') value[bucle]=' '; //not printable character
strcpy(browser_list[block_number]->info,value);
break;
case 0x31: // show text
strcpy(browser_list[block_number]->block_type,"Show text: ");
retval=fread(value,1,1,fichero); //Time lengt
if (retval!=1) {retorno=1;break;}
retval=fread(value,1,1,fichero); // length
if (retval!=1) {retorno=1;break;}
len = (unsigned int) value[0];
retval=fread(value,1,len,fichero);
if (retval!=len) {retorno=1;break;}
if (len>31) len=31;
value[len]=0;
for(bucle=0;bucle<len;bucle++)
if (value[bucle]<' ') value[bucle]=' '; //not printable character
strcpy(browser_list[block_number]->info,value);
break;
case 0x32: // archive info
strcpy(browser_list[block_number]->block_type,"Archive info: ");
retval=fread(value,1,2,fichero); // length
if (retval!=2) {retorno=1;break;}
len = ((unsigned int) value[0]) + 256 * ((unsigned int) value[1]);
retval=fread(value,1,len,fichero);
break;
case 0x33: // hardware info
strcpy(browser_list[block_number]->block_type,"Hardware info: ");
retval=fread(value,1,1,fichero);
if (retval!=1) {retorno=1;break;}
len = (unsigned int) value[0] *3;
retval=fread(value,1,len,fichero);
break;
case 0x34: // emulation info
strcpy(browser_list[block_number]->block_type,"Emulation info: ");
retval=fread(value,1,8,fichero);
break;
case 0x35: // custom info
strcpy(browser_list[block_number]->block_type,"Custom info: ");
retval=fread(value,1,16,fichero);
retval=fread(value,1,4,fichero);
if (retval!=4) {retorno=1;break;}
len = ((unsigned int) value[0]) + 256 * ((unsigned int) value[1]) + 65536*((unsigned int) value[2]) + 16777216*((unsigned int) value[3]);
for(bucle=0;bucle<len;bucle++)
retval=fread(value,1,1, fichero);
break;
default: // not supported
strcpy(browser_list[block_number]->block_type,"Not supported");
retorno=1; //Tape error
break;
}
block_number++;
} while ((!feof(fichero))&&(block_number<MAX_BROWSER_ITEM)&&(retorno==0));
rewind_tape (fichero,1);
browser_list[block_number]=NULL;
}
void browser_tap (FILE * fichero) {
unsigned int longitud, bucle, block_number, byte_position ;
unsigned char value[65536], empty, flag_byte;
int retval, retorno;
empty=file_empty(fichero);
if (fichero == NULL)
{
sprintf (ordenador.osd_text, "No tape selected");
ordenador.osd_time = 100;
return;
}
if(empty)
{
sprintf (ordenador.osd_text, "Tape file empty");
return;
}
//Free the browser list
for(bucle=0; ((browser_list[bucle]!=NULL)&&(bucle<MAX_BROWSER_ITEM)); bucle++)
{
free (browser_list[bucle]);
browser_list[bucle]=NULL;
}
flag_byte=0;
retorno=0;
block_number=0;
do {
byte_position=ftell(fichero);
browser_list[block_number]=(struct browser *)malloc(sizeof(struct browser));
//if (browser_list[block_number]==NULL) retorno=1;
browser_list[block_number]->position=byte_position;
printf("TAP: browser: %X en %d\n",10, byte_position);
strcpy(browser_list[block_number]->block_type,"Standard speed data");
retval=fread (value, 1, 2, fichero); // read length of current block
if (retval!=2) {retorno=1;break;}
longitud = ((unsigned int) value[0]) + 256 * ((unsigned int) value[1]);
retval=fread (&flag_byte, 1, 1, fichero);
if (retval!=1) {retorno=1;break;}
switch(flag_byte)
{
case 0x00: //header
retval=fread (value, 1, 18, fichero);
if (retval!=18) {retorno=1;break;}
value[11]=0;
for(bucle=1;bucle<11;bucle++)
if (value[bucle]<' ') value[bucle]='?'; //not printable character
switch(value[0] ) //Type
{
case 0x00: //PROG
sprintf(browser_list[block_number]->info,"Program: %s", value+1);
break;
case 0X01: //DATA
sprintf(browser_list[block_number]->info,"Number array: %s", value+1);
case 0X02:
sprintf(browser_list[block_number]->info,"Character array: %s", value+1);
case 0X03:
sprintf(browser_list[block_number]->info,"Code: %s", value+1);
break;
default: //??
strcpy(browser_list[block_number]->info,"???");
break;
}
break;
case 0xFF: //data
sprintf(browser_list[block_number]->info,"Standard Data: %d bytes", longitud-2);
if (longitud>1)
{
retval=fread (value, 1, longitud-1, fichero);
if (retval!=(longitud-1)) {retorno=1;break;}
}
break;
default: //Custom data
sprintf(browser_list[block_number]->info,"Custom Data: %d bytes", longitud-2);
if (longitud>1)
{
retval=fread (value, 1, longitud-1, fichero);
if (retval!=(longitud-1)) {retorno=1;break;}
}
break;
}
block_number++;
} while ((!feof(fichero))&&(block_number<MAX_BROWSER_ITEM)&&(retorno==0));
rewind_tape (fichero,1);
browser_list[block_number]=NULL;
}

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/*
* Copyright (C) 2013 Fabio Olimpieri
* This file is part of FBZX Wii
*
* FBZX Wii is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* FBZX Wii is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef H_TAPE_BROWSER
#define H_TAPE_BROWSER
#define MAX_BROWSER_ITEM 1000
struct browser {
unsigned int position;
char block_type[24];
char info[32];
};
extern struct browser *browser_list[MAX_BROWSER_ITEM+1];
void browser_tap (FILE *);
void browser_tzx (FILE *);
#endif