The-Homebrew-Cloud/fbzx-wii
2
0
Fork 0
mirror of https://github.com/Oibaf66/fbzx-wii.git synced 2024-11-01 06:45:05 +01:00
Code Issues Packages Projects Releases Wiki Activity

Jump to block, linear interpolation anti aliasing filter, fixed bug in file list creation (hopefully), fixed bug in block selection

Browse Source
This commit is contained in:
fabio.olimpieri 2013-03-22 20:20:29 +00:00
parent b17bd01131
commit 0dafc20545
9 changed files with 110 additions and 63 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/computer.c
View File

@ -1713,7 +1713,7 @@ void ResetComputer () {
ordenador.last_selected_poke_file[0]='\0';
ordenador.tst_sample=(ordenador.cpufreq + ordenador.freq/2)/ordenador.freq;
ordenador.tst_sample=(ordenador.cpufreq + (ordenador.freq*N_SAMPLES/2))/(ordenador.freq*N_SAMPLES);
microdrive_reset();

1
src/computer.h
View File

@ -28,6 +28,7 @@
#define KB_BUFFER_LENGHT 10
#define MAX_PATH_LENGTH 256
#define N_SAMPLES 4
extern char salir;

2
src/emulator.c
View File

@ -584,7 +584,7 @@ int bucle, bucle2,ret2;
}
printf("Init sound 2\n");
ordenador.tst_sample=(ordenador.cpufreq + ordenador.freq/2)/ordenador.freq;
ordenador.tst_sample=(ordenador.cpufreq + (ordenador.freq*N_SAMPLES/2))/(ordenador.freq*N_SAMPLES);
}
void end_system() {

14
src/menu_sdl.c
View File

@ -344,7 +344,6 @@ static const char **get_file_list(const char *base_dir)
int cur = 0;
struct dirent *de;
int cnt = 16;
int i;
if (!d)
return NULL;
@ -371,6 +370,7 @@ static const char **get_file_list(const char *base_dir)
size_t len = strlen(de->d_name) + 4;
p = (char*)malloc( len );
if (p==NULL) break; //Terminate the list
snprintf(p, len, "[%s]", de->d_name);
file_list[cur++] = p;
file_list[cur] = NULL;
@ -380,6 +380,7 @@ static const char **get_file_list(const char *base_dir)
char *p;
p = strdup(de->d_name);
if (p==NULL) break; //Terminate the list
file_list[cur++] = p;
file_list[cur] = NULL;
}
@ -388,15 +389,8 @@ static const char **get_file_list(const char *base_dir)
{
cnt = cnt + 32;
realloc_file_list = (const char**)realloc(file_list, cnt * sizeof(char*));
if (realloc_file_list) file_list = realloc_file_list; else
{
/* Cleanup everything - file_list is NULL-terminated */
for ( i = 0; file_list[i]; i++ )
free((void*)file_list[i]);
free(file_list);
closedir(d);
return NULL;
}
if (realloc_file_list) file_list = realloc_file_list; else break;
}
}
closedir(d);

4
src/menus.c
View File

@ -1747,7 +1747,7 @@ char *select_file(char *path,enum LOAD_FILE_TYPES kind) {
unsigned char fin,read,*salida;
int bucle,ancho,numitems,selected,from,longitud;
salida=(unsigned char *)malloc(2049);
salida=(unsigned char *)malloc(MAX_PATH_LENGTH);
salida[0]=0;
ancho=screen->w;
@ -2018,6 +2018,6 @@ if (freq == 0)
}
else ordenador.cpufreq = freq;
ordenador.tst_sample=(ordenador.cpufreq + ordenador.freq/2)/ordenador.freq;
ordenador.tst_sample=(ordenador.cpufreq + (ordenador.freq*N_SAMPLES/2))/(ordenador.freq*N_SAMPLES);
}

61
src/spk_ay.c
View File

@ -24,7 +24,8 @@
#include "sound.h"
#include <stdlib.h>
unsigned int beeper = 0;
unsigned int beeper = 0, lvalue_sum=0, rvalue_sum=0 ;
unsigned char sample_count = 0;
/* emulates the AY-3-8912 during TSTADOS tstates */
@ -314,23 +315,12 @@ inline void play_ay (unsigned int tstados) {
inline void play_sound (unsigned int tstados) {
int lvalue, rvalue;
ordenador.tstados_counter_sound += tstados;
while (ordenador.tstados_counter_sound >= ordenador.tst_sample) {
ordenador.tstados_counter_sound -= ordenador.tst_sample;
/*
//Low pass filter
if (ordenador.sound_bit)
{
if (beeper<480) beeper = beeper + ordenador.low_filter; //Sound bit volume max 480*vol
}
else if (beeper>0) beeper = beeper - ordenador.low_filter;
*/
if (ordenador.sound_bit)
{
if (ordenador.sound_bit_mic) beeper = 544; //480 + 64 - MIC is audible only if EAR is on
@ -340,46 +330,55 @@ inline void play_sound (unsigned int tstados) {
//Each channel max 256*vol
if (ordenador.ay_emul)
if ((ordenador.ay_emul)&&(!ordenador.turbo_state))
{
switch (ordenador.audio_mode)
{
case 0: //Mono
lvalue = (beeper + ordenador.vol_a + ordenador.vol_b +ordenador.vol_c)*ordenador.volume;
rvalue = (beeper + ordenador.vol_a + ordenador.vol_b +ordenador.vol_c)*ordenador.volume;
lvalue_sum = lvalue_sum + (beeper + ordenador.vol_a + ordenador.vol_b +ordenador.vol_c)*ordenador.volume;
rvalue_sum = rvalue_sum + (beeper + ordenador.vol_a + ordenador.vol_b +ordenador.vol_c)*ordenador.volume;
break;
case 1: //ABC
lvalue = (beeper + ordenador.vol_a*2 + ordenador.vol_b)*ordenador.volume;
rvalue = (beeper + ordenador.vol_b + ordenador.vol_c*2)*ordenador.volume;
lvalue_sum = lvalue_sum + (beeper + ordenador.vol_a*2 + ordenador.vol_b)*ordenador.volume;
rvalue_sum = rvalue_sum + (beeper + ordenador.vol_b + ordenador.vol_c*2)*ordenador.volume;
break;
case 2: //ACB
lvalue = (beeper + ordenador.vol_a*2 + ordenador.vol_c)*ordenador.volume;
rvalue = (beeper + ordenador.vol_c + ordenador.vol_b*2)*ordenador.volume;
lvalue_sum = lvalue_sum + (beeper + ordenador.vol_a*2 + ordenador.vol_c)*ordenador.volume;
rvalue_sum = rvalue_sum + (beeper + ordenador.vol_c + ordenador.vol_b*2)*ordenador.volume;
break;
case 3: //BAC
lvalue = (beeper + ordenador.vol_b*2 + ordenador.vol_a)*ordenador.volume;
rvalue = (beeper + ordenador.vol_a + ordenador.vol_c*2)*ordenador.volume;
lvalue_sum = lvalue_sum + (beeper + ordenador.vol_b*2 + ordenador.vol_a)*ordenador.volume;
rvalue_sum = rvalue_sum + (beeper + ordenador.vol_a + ordenador.vol_c*2)*ordenador.volume;
break;
default: //No emulation
rvalue = beeper*ordenador.volume;
lvalue = beeper*ordenador.volume;
lvalue_sum = lvalue_sum + beeper*ordenador.volume;
rvalue_sum = rvalue_sum + beeper*ordenador.volume;
break;
}
}
else
{
rvalue = beeper*ordenador.volume;
lvalue = beeper*ordenador.volume;
lvalue_sum = lvalue_sum + beeper*ordenador.volume;
rvalue_sum = rvalue_sum + beeper*ordenador.volume;
}
*ordenador.current_buffer = (rvalue<<16)|(lvalue);
ordenador.current_buffer++;
ordenador.sound_cuantity++;
if (sample_count==(N_SAMPLES-1))
{
if (ordenador.sound_cuantity == ordenador.buffer_len) { // buffer filled
sound_play();
ordenador.sound_cuantity = 0;
*ordenador.current_buffer = ((rvalue_sum/N_SAMPLES)<<16)|(lvalue_sum/N_SAMPLES);
ordenador.current_buffer++;
ordenador.sound_cuantity++;
if (ordenador.sound_cuantity == ordenador.buffer_len) { // buffer filled
sound_play();
ordenador.sound_cuantity = 0;
}
sample_count=0;
lvalue_sum=0;
rvalue_sum=0;
}
else sample_count++;
}
}

23
src/tape.c
View File

@ -57,8 +57,8 @@ inline void tape_read(FILE *fichero, int tstados) {
//Auto ultra fast mode
if ((ordenador.turbo_state != 1)&&(ordenador.turbo==1))
{
if (ordenador.tape_file_type==TAP_TAP) update_frequency(13000000);
else update_frequency(11000000);
if (ordenador.tape_file_type==TAP_TAP) update_frequency(12500000);
else update_frequency(10500000);
jump_frames=7;
ordenador.precision_old=ordenador.precision;
ordenador.precision =0;
@ -207,6 +207,7 @@ inline void tape_read_tzx (FILE * fichero, int tstados) {
static unsigned char value, value2,value3,value4,done;
static unsigned int bucle,bucle2, byte_position;
int retval;
char block_jump[2];
if (fichero == NULL)
{
@ -424,6 +425,11 @@ inline void tape_read_tzx (FILE * fichero, int tstados) {
case 0x22: // group end
break;
case 0x23: // jump to block
retval=fread(block_jump,1,2,fichero);
jump_to_block(fichero, (int) block_jump[0] + 256*((int) block_jump[1]));
break;
case 0x24: // loop start
retval=fread(&value2,1,1,fichero);
retval=fread(&value3,1,1,fichero);
@ -938,6 +944,7 @@ void fastload_block_tzx (FILE * fichero) {
unsigned int longitud, len, bucle, number_bytes, byte_position, byte_position2, retorno;
unsigned char value[65536], empty, blockid, parity, pause[2],flag_byte;
int retval;
char block_jump[2];
longitud =0;
pause[0]=pause[1]=0;
@ -1039,11 +1046,19 @@ void fastload_block_tzx (FILE * fichero) {
break;
case 0x21: // group start
retorno=2;
retval=fread(value,1,1,fichero);
if (retval!=1) {procesador.Rm.br.F &= (~F_C);return;}
len = (unsigned int) value[0];
retval=fread(value,1,len,fichero);
break;
case 0x22: // group end
retorno=2;
break;
case 0x23: // jump to block
retval=fread(block_jump,1,2,fichero);
if (retval!=2) {procesador.Rm.br.F &= (~F_C);return;}
jump_to_block(fichero, (int) block_jump[0] + 256*((int) block_jump[1]));
break;
case 0x24: // loop start

63
src/tape_browser.c
View File

@ -41,6 +41,7 @@ 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;
char block_jump[2];
int retval, retval2;
longitud =0;
@ -196,7 +197,7 @@ void browser_tzx (FILE * fichero) {
if (longitud==0) strcpy(browser_list[block_number]->block_type,"Stop the Tape ");
else
{
strcpy(browser_list[block_number]->block_type,"Pause: ");
strcpy(browser_list[block_number]->block_type,"Pause ");
sprintf(browser_list[block_number]->info,"%d ms", longitud);
}
break;
@ -216,6 +217,13 @@ void browser_tzx (FILE * fichero) {
strcpy(browser_list[block_number]->block_type,"Group end ");
break;
case 0x23: // jump to block
strcpy(browser_list[block_number]->block_type,"Jump to block ");
retval=fread(block_jump,1,2,fichero);
if (retval!=2) {retorno=1;break;}
sprintf(browser_list[block_number]->info,"Block: %d", ((int) block_jump[0]) + 256*((int) block_jump[1]) + ((int) block_number));
break;
case 0x24: // loop start
strcpy(browser_list[block_number]->block_type,"Loop start ");
retval=fread(value,1,2, fichero);
@ -302,7 +310,7 @@ void browser_tzx (FILE * fichero) {
default: // not supported
strcpy(browser_list[block_number]->block_type,"Not supported");
retorno=1; //Tape error
retorno=1; //Error
break;
}
block_number++;
@ -421,7 +429,7 @@ browser_list[block_number]=NULL;
int select_block(FILE * fichero)
{
unsigned int longitud, bucle, byte_position, block_number,nblocks,offset, blk_sel_pos;
unsigned int longitud, bucle, block_number,nblocks,offset, blk_sel_pos;
unsigned char value[64], len_text;
int retval;
@ -434,14 +442,14 @@ int select_block(FILE * fichero)
block_select_list[bucle]=NULL;
}
byte_position=ftell(fichero)-1;
//search for select block
//search for select block position
for(blk_sel_pos=0;
((browser_list[blk_sel_pos]!=NULL)&&(blk_sel_pos<MAX_BROWSER_ITEM)&&(browser_list[blk_sel_pos]->position!=byte_position));
((blk_sel_pos<MAX_BROWSER_ITEM)&&(browser_list[blk_sel_pos]!=NULL)&&(browser_list[blk_sel_pos]->position!=ordenador.tape_position));
blk_sel_pos++);
if (browser_list[blk_sel_pos]->position!=byte_position) return -1;
if (browser_list[blk_sel_pos]==NULL) return -1;
if (browser_list[blk_sel_pos]->position!=ordenador.tape_position) return -1;
retval=fread(value,1,3,fichero);
if (retval!=3) {return -1;}
@ -473,7 +481,7 @@ int select_block(FILE * fichero)
block_select_list[block_number]=NULL;
if (feof(fichero)) return -1;
unsigned int tape_position, block_n_int;
unsigned int block_n_int;
const char *row_selected;
char block_n[3];
@ -488,23 +496,52 @@ int select_block(FILE * fichero)
block_n_int=atoi(block_n);
if ((block_n_int<0)||(block_n_int >(MAX_SELECT_ITEM-1))) return -1;
if ((block_n_int<0)||(block_n_int >(MAX_SELECT_ITEM-1))||block_select_list[block_n_int]==NULL) return -1;
if ((block_select_list[block_n_int]->offset+blk_sel_pos) > (MAX_BROWSER_ITEM-1)) return -1;
tape_position=browser_list[block_select_list[block_n_int]->offset+blk_sel_pos]->position;
if (browser_list[block_select_list[block_n_int]->offset+blk_sel_pos]==NULL) return -1;
ordenador.tape_position=browser_list[block_select_list[block_n_int]->offset+blk_sel_pos]->position;
ordenador.tape_current_bit=0;
ordenador.tape_current_mode=TAP_TRASH;
ordenador.next_block= NOBLOCK;
fseek(ordenador.tap_file, tape_position, SEEK_SET);
ordenador.tape_position = tape_position;
fseek(ordenador.tap_file, ordenador.tape_position, SEEK_SET);
free((void*)row_selected);
return 0;
}
int jump_to_block(FILE * fichero, int blocks_to_jump)
{
int blk_sel_pos, dest_block;
//search for block position
for(blk_sel_pos=0;
((blk_sel_pos<MAX_BROWSER_ITEM)&&(browser_list[blk_sel_pos]!=NULL)&&(browser_list[blk_sel_pos]->position!=ordenador.tape_position));
blk_sel_pos++);
if (browser_list[blk_sel_pos]==NULL) return -1;
if (browser_list[blk_sel_pos]->position!=ordenador.tape_position) return -1;
dest_block=blk_sel_pos+blocks_to_jump;
if ((dest_block<0)||(dest_block>MAX_BROWSER_ITEM)) return -1;
if (browser_list[dest_block]==NULL) return -1;
fseek(fichero, browser_list[dest_block]->position, SEEK_SET);
ordenador.tape_position = browser_list[dest_block]->position;
return 0;
}
void free_browser()
{
unsigned int bucle;

1
src/tape_browser.h
View File

@ -40,6 +40,7 @@ extern struct browser *browser_list[MAX_BROWSER_ITEM+1];
void browser_tap (FILE *);
void browser_tzx (FILE *);
int select_block(FILE * fichero);
int jump_to_block(FILE * fichero, int blocks_to_jump);
void free_browser();
#endif