mirror of
https://github.com/Oibaf66/frodo-wii.git
synced 2024-11-26 21:44:22 +01:00
613 lines
15 KiB
OpenEdge ABL
613 lines
15 KiB
OpenEdge ABL
/*
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* C64_x.i - Put the pieces together, X specific stuff
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*
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* Frodo (C) 1994-1997,2002 Christian Bauer
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* Unix stuff by Bernd Schmidt/Lutz Vieweg
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*/
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#include "main.h"
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#include <sys/types.h>
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#include <dirent.h>
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#if defined(GEKKO)
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#include <wiiuse/wpad.h>
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#define FONT_PATH "/apps/frodo/FreeMono.ttf"
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#else
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#define FONT_PATH "FreeMono.ttf"
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#endif
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#define MS_PER_FRAME 40
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static struct timeval tv_start;
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static int MENU_SIZE_X, MENU_SIZE_Y;
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static const char *main_menu_messages[] = {
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"Insert disc or tape", /* 0 */
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"Load disc or tape", /* 1 */
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"Reset C64", /* 2 */
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"Bind key to joystick",/* 3 */
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"Display options", /* 4 */
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"Controller 1 joystick port", /* 5 */
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"^|1|2",
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"Save/Load state", /* 7 */
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" ",
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"Quit", /* 9 */
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NULL,
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};
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static const char *display_option_messages[] = {
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"1-1 resolution", /* 0 */
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"double resolution, centered", /* 1 */
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"full-screen stretched", /* 2 */
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NULL,
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};
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static const char *bind_key_messages[] = {
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"Bind to A", /* 0 */
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"Bind to B", /* 1 */
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"Bind to Plus", /* 2 */
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"Bind to Minus", /* 3 */
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"Bind to 1", /* 4 */
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NULL,
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};
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static const char *save_load_state_messages[] = {
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"Load saved state", /* 0 */
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"Save current state", /* 0 */
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"Delete state", /* 0 */
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NULL,
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};
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/*
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* Constructor, system-dependent things
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*/
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void C64::c64_ctor1(void)
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{
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// Initialize joystick variables
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#ifdef HAVE_LINUX_JOYSTICK_H
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joyfd[0] = joyfd[1] = -1;
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joy_minx = joy_miny = 32767;
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joy_maxx = joy_maxy = -32768;
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#endif
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#if defined(GEKKO)
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this->base_dir = "/apps/frodo/images";
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#else
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this->base_dir = ".";
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#endif
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this->fake_key_sequence = false;
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this->fake_key_index = 0;
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this->fake_key_keytime = 5;
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this->fake_key_type = 0;
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MENU_SIZE_X = FULL_DISPLAY_X;
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MENU_SIZE_Y = FULL_DISPLAY_Y - FULL_DISPLAY_Y / 4;
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SDL_RWops *rw;
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Uint8 *data = (Uint8*)malloc(1 * 1024*1024);
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FILE *fp = fopen(FONT_PATH, "r");
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if (!fp) {
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fprintf(stderr, "Could not open font\n");
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exit(1);
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}
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fread(data, 1, 1 * 1024 * 1024, fp);
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rw = SDL_RWFromMem(data, 1 * 1024 * 1024);
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if (!rw) {
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fprintf(stderr, "Could not create RW: %s\n", SDL_GetError());
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exit(1);
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}
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this->menu_font = TTF_OpenFontRW(rw, 1, 20);
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if (!this->menu_font)
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{
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fprintf(stderr, "Unable to open font\n" );
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exit(1);
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}
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menu_init(&this->main_menu, this->menu_font, main_menu_messages,
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0, 0, MENU_SIZE_X, MENU_SIZE_Y);
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}
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void C64::c64_ctor2(void)
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{
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gettimeofday(&tv_start, NULL);
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}
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/*
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* Destructor, system-dependent things
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*/
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void C64::c64_dtor(void)
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{
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menu_fini(&this->main_menu);
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}
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void C64::select_disc(Prefs *np)
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{
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DIR *d = opendir(this->base_dir);
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const char **file_list;
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int cur = 0;
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struct dirent *de;
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int cnt = 16;
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menu_t select_disc_menu;
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if (!d)
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return;
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file_list = (const char**)malloc(cnt * sizeof(char*));
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file_list[cur++] = strdup("None");
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file_list[cur] = NULL;
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for (de = readdir(d);
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de;
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de = readdir(d))
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{
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/* FIXME! Add directories */
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if (strstr(de->d_name, ".d64") || strstr(de->d_name, ".D64") ||
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strstr(de->d_name, ".t64") || strstr(de->d_name, ".T64"))
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{
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char *p;
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p = strdup(de->d_name);
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file_list[cur++] = p;
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file_list[cur] = NULL;
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if (cur > cnt - 2)
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{
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cnt = cnt + 32;
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file_list = (const char**)realloc(file_list, cnt * sizeof(char*));
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if (!file_list)
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return;
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}
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}
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}
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closedir(d);
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menu_init(&select_disc_menu, this->menu_font, file_list,
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0, 0, MENU_SIZE_X, MENU_SIZE_Y);
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int opt = menu_select(real_screen, &select_disc_menu, ~0, NULL);
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if (opt >= 0)
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{
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const char *name = file_list[opt];
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if (strcmp(file_list[opt], "None") == 0)
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{
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strcpy(np->DrivePath[0], "\0");
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}
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else
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{
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snprintf(np->DrivePath[0], 255, "%s/%s",
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this->base_dir, name);
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if (strstr(name, ".d64") || strstr(name, ".D64"))
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np->DriveType[0] = DRVTYPE_D64;
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else
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np->DriveType[0] = DRVTYPE_T64;
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NewPrefs(np);
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ThePrefs = *np;
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}
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}
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menu_fini(&select_disc_menu);
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/* Cleanup everything */
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for ( int i = 0; i < cur; i++ )
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free((void*)file_list[i]);
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free(file_list);
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}
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#define MATRIX(a,b) (((a) << 3) | (b))
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void C64::bind_key(Prefs *np)
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{
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menu_t bind_key_menu;
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menu_t key_menu;
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static const char *keys[] = { "space", "Run/Stop", "return", "F1", "F3", "F5", "F7",
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"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A",
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"B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
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"N", "O", "P", "Q", "R", "S", "T", "U", "V", "X", "Y", "Z",
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NULL };
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int kcs[] = { MATRIX(7, 4), MATRIX(7, 7), MATRIX(0, 1), /* space, R/S, return */
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MATRIX(0, 4), MATRIX(0, 5), MATRIX(0, 6), MATRIX(0, 3), MATRIX(4, 3), MATRIX(7, 0),
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MATRIX(7, 3), MATRIX(1, 0), MATRIX(1, 3), MATRIX(2, 0), MATRIX(2, 3), MATRIX(3, 0),
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MATRIX(3, 3), MATRIX(4, 0), MATRIX(1, 2), MATRIX(3, 4), MATRIX(2, 4), MATRIX(2, 2),
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MATRIX(1, 6), MATRIX(2, 5), MATRIX(3, 2), MATRIX(3, 5), MATRIX(4, 1), MATRIX(4, 2),
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MATRIX(4, 5), MATRIX(5, 2), MATRIX(4, 4), MATRIX(4, 7), MATRIX(4, 6), MATRIX(5, 1),
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MATRIX(7, 6), MATRIX(2, 1), MATRIX(1, 5), MATRIX(2, 6), MATRIX(3, 6), MATRIX(3, 7),
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MATRIX(1, 1), MATRIX(2, 7), MATRIX(3, 1), MATRIX(1, 4) };
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menu_init(&bind_key_menu, this->menu_font, bind_key_messages,
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0, 0, MENU_SIZE_X, MENU_SIZE_Y);
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int opt = menu_select(real_screen, &bind_key_menu, ~0, NULL);
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if (opt >= 0)
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{
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menu_init(&key_menu, this->menu_font, keys,
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0, 0, MENU_SIZE_X, MENU_SIZE_Y);
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int key = menu_select(real_screen, &key_menu, ~0, NULL);
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np->JoystickKeyBinding[opt] = kcs[key];
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menu_fini(&key_menu);
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}
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menu_fini(&bind_key_menu);
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}
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void C64::display_options(Prefs *np)
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{
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menu_t display_menu;
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menu_init(&display_menu, this->menu_font, display_option_messages,
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0, 0, MENU_SIZE_X, MENU_SIZE_Y);
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int opt = menu_select(real_screen, &display_menu, ~0, NULL);
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if (opt >= 0)
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np->DisplayOption = opt;
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menu_fini(&display_menu);
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}
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void C64::save_load_state(Prefs *np)
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{
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menu_t save_load_menu;
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menu_t select_saves_menu;
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menu_init(&save_load_menu, this->menu_font, save_load_state_messages,
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0, 0, MENU_SIZE_X, MENU_SIZE_Y);
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int opt = menu_select(real_screen, &save_load_menu, ~0, NULL);
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switch(opt)
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{
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case 1: /* save */
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{
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char buf[255];
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const char *name = "save";
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snprintf(buf, 255, "/apps/frodo/saves/%s.sav", name);
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this->SaveSnapshot(buf);
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} break;
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case 0: /* load/delete */
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case 2:
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{
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int save = menu_select(real_screen, &select_saves_menu, ~0, NULL);
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} break;
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default:
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break;
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}
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menu_fini(&save_load_menu);
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}
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/*
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* Start main emulation thread
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*/
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void C64::Run(void)
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{
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// Reset chips
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TheCPU->Reset();
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TheSID->Reset();
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TheCIA1->Reset();
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TheCIA2->Reset();
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TheCPU1541->Reset();
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// Patch kernal IEC routines
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orig_kernal_1d84 = Kernal[0x1d84];
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orig_kernal_1d85 = Kernal[0x1d85];
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PatchKernal(ThePrefs.FastReset, ThePrefs.Emul1541Proc);
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quit_thyself = false;
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thread_func();
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}
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/* From dreamcast port */
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static const char *auto_seq[4] =
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{
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"\nLOAD \"*\",8,1\nRUN\n",
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"\nLOAD \"*\",9,1\nRUN\n",
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"\nLOAD \"*\",10,1\nRUN\n",
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"\nLOAD \"*\",11,1\nRUN\n",
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};
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extern "C" int get_kc_from_char(char c_in, int *shifted);
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/*
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* Vertical blank: Poll keyboard and joysticks, update window
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*/
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void C64::VBlank(bool draw_frame)
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{
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// Poll keyboard
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TheDisplay->PollKeyboard(TheCIA1->KeyMatrix, TheCIA1->RevMatrix, &joykey);
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if (TheDisplay->quit_requested)
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quit_thyself = true;
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if (this->fake_key_sequence)
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{
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int shifted;
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int kc = get_kc_from_char(auto_seq[this->fake_key_type][this->fake_key_index], &shifted);
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TheDisplay->FakeKeyPress(kc, shifted, TheCIA1->KeyMatrix,
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TheCIA1->RevMatrix);
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this->fake_key_keytime --;
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if (this->fake_key_keytime == 0)
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{
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this->fake_key_keytime = 1;
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this->fake_key_index ++;
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if (auto_seq[this->fake_key_type][this->fake_key_index] == '\0')
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{
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this->fake_key_sequence = false;
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this->fake_key_index = 0;
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this->fake_key_keytime = 5;
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}
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}
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}
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// Poll joysticks
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TheCIA1->Joystick1 = poll_joystick(0);
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TheCIA1->Joystick2 = poll_joystick(1);
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// Count TOD clocks
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TheCIA1->CountTOD();
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TheCIA2->CountTOD();
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// Update window if needed
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if (draw_frame) {
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TheDisplay->Update();
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#if 0
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// Calculate time between VBlanks, display speedometer
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struct timeval tv;
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gettimeofday(&tv, NULL);
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if ((tv.tv_usec -= tv_start.tv_usec) < 0) {
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tv.tv_usec += 1000000;
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tv.tv_sec -= 1;
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}
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tv.tv_sec -= tv_start.tv_sec;
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double elapsed_time = (double)tv.tv_sec * 1000000 + tv.tv_usec;
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speed_index = 20000 / (elapsed_time + 1) * 100;
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// Limit speed to 100% if desired
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if ((speed_index > 100)) {
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usleep((unsigned long)(20000 - elapsed_time));
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speed_index = 100;
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}
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gettimeofday(&tv_start, NULL);
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TheDisplay->Speedometer((int)speed_index);
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#endif
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}
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if (this->have_a_break) {
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int submenus[1];
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int opt = menu_select(real_screen, &this->main_menu, ~0, submenus);
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Prefs *np = Frodo::reload_prefs();
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switch(opt)
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{
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case 0: /* Insert disc/tape */
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this->select_disc(np);
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break;
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case 1: /* Load disc/tape */
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this->fake_key_sequence = true;
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break;
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case 2: /* Reset */
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Reset();
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break;
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case 3: /* Bind keys to joystick */
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this->bind_key(np);
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break;
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case 4: /* Display options */
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this->display_options(np);
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break;
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case 5: /* Swap joysticks */
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break;
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case 7: /* Save / load game */
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this->save_load_state(np);
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break;
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case 9: /* Quit */
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quit_thyself = true;
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break;
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case -1:
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default:
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break;
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}
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if (submenus[0] == 0)
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np->JoystickSwap = false;
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else
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np->JoystickSwap = true;
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this->NewPrefs(np);
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ThePrefs = *np;
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ThePrefs.Save(PREFS_PATH);
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this->have_a_break = false;
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}
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/* From Acorn port */
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static uint64_t lastFrame;
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uint32_t now = SDL_GetTicks();
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if ( (now - lastFrame) < MS_PER_FRAME ) {
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SDL_Delay( MS_PER_FRAME - (now - lastFrame) );
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}
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lastFrame = now;
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}
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/*
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* Open/close joystick drivers given old and new state of
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* joystick preferences
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*/
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void C64::open_close_joysticks(bool oldjoy1, bool oldjoy2, bool newjoy1, bool newjoy2)
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{
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#ifdef HAVE_LINUX_JOYSTICK_H
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if (oldjoy1 != newjoy1) {
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joy_minx = joy_miny = 32767; // Reset calibration
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joy_maxx = joy_maxy = -32768;
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if (newjoy1) {
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joyfd[0] = open("/dev/js0", O_RDONLY);
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if (joyfd[0] < 0)
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fprintf(stderr, "Couldn't open joystick 1\n");
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} else {
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close(joyfd[0]);
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joyfd[0] = -1;
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}
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}
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if (oldjoy2 != newjoy2) {
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joy_minx = joy_miny = 32767; // Reset calibration
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joy_maxx = joy_maxy = -32768;
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if (newjoy2) {
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joyfd[1] = open("/dev/js1", O_RDONLY);
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if (joyfd[1] < 0)
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fprintf(stderr, "Couldn't open joystick 2\n");
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} else {
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close(joyfd[1]);
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joyfd[1] = -1;
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}
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}
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#endif
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}
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/*
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* Poll joystick port, return CIA mask
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*/
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uint8 C64::poll_joystick(int port)
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{
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#ifdef GEKKO
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int controller = port;
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Uint32 held;
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uint8 j = 0xff;
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if (ThePrefs.JoystickSwap)
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controller = !port;
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WPAD_ScanPads();
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held = WPAD_ButtonsHeld(controller);
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if (held & WPAD_BUTTON_UP)
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j &= 0xfb; // Left
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if (held & WPAD_BUTTON_DOWN)
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j &= 0xf7; // Right
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if (held & WPAD_BUTTON_RIGHT)
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j &= 0xfe; // Up
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if (held & WPAD_BUTTON_LEFT)
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j &= 0xfd; // Down
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if (held & WPAD_BUTTON_2)
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j &= 0xef; // Button
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if (held & WPAD_BUTTON_HOME)
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this->enter_menu();
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if ( (held & WPAD_BUTTON_A) && ThePrefs.JoystickKeyBinding[0])
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TheDisplay->FakeKeyPressRepeat(ThePrefs.JoystickKeyBinding[0],
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false, TheCIA1->KeyMatrix, TheCIA1->RevMatrix);
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if ( (held & WPAD_BUTTON_B) && ThePrefs.JoystickKeyBinding[1])
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TheDisplay->FakeKeyPressRepeat(ThePrefs.JoystickKeyBinding[1],
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false, TheCIA1->KeyMatrix, TheCIA1->RevMatrix);
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if ( (held & WPAD_BUTTON_PLUS) && ThePrefs.JoystickKeyBinding[2])
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TheDisplay->FakeKeyPressRepeat(ThePrefs.JoystickKeyBinding[2],
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false, TheCIA1->KeyMatrix, TheCIA1->RevMatrix);
|
|
if ( (held & WPAD_BUTTON_MINUS) && ThePrefs.JoystickKeyBinding[3])
|
|
TheDisplay->FakeKeyPressRepeat(ThePrefs.JoystickKeyBinding[3],
|
|
false, TheCIA1->KeyMatrix, TheCIA1->RevMatrix);
|
|
if ( (held & WPAD_BUTTON_1) && ThePrefs.JoystickKeyBinding[4])
|
|
TheDisplay->FakeKeyPressRepeat(ThePrefs.JoystickKeyBinding[4],
|
|
false, TheCIA1->KeyMatrix, TheCIA1->RevMatrix);
|
|
|
|
|
|
return j;
|
|
#elif defined(HAVE_LINUX_JOYSTICK_H)
|
|
JS_DATA_TYPE js;
|
|
uint8 j = 0xff;
|
|
|
|
if (joyfd[port] >= 0) {
|
|
if (read(joyfd[port], &js, JS_RETURN) == JS_RETURN) {
|
|
if (js.x > joy_maxx)
|
|
joy_maxx = js.x;
|
|
if (js.x < joy_minx)
|
|
joy_minx = js.x;
|
|
if (js.y > joy_maxy)
|
|
joy_maxy = js.y;
|
|
if (js.y < joy_miny)
|
|
joy_miny = js.y;
|
|
|
|
if (joy_maxx-joy_minx < 100 || joy_maxy-joy_miny < 100)
|
|
return 0xff;
|
|
|
|
if (js.x < (joy_minx + (joy_maxx-joy_minx)/3))
|
|
j &= 0xfb; // Left
|
|
else if (js.x > (joy_minx + 2*(joy_maxx-joy_minx)/3))
|
|
j &= 0xf7; // Right
|
|
|
|
if (js.y < (joy_miny + (joy_maxy-joy_miny)/3))
|
|
j &= 0xfe; // Up
|
|
else if (js.y > (joy_miny + 2*(joy_maxy-joy_miny)/3))
|
|
j &= 0xfd; // Down
|
|
|
|
if (js.buttons & 1)
|
|
j &= 0xef; // Button
|
|
}
|
|
}
|
|
return j;
|
|
#else
|
|
return 0xff;
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* The emulation's main loop
|
|
*/
|
|
|
|
void C64::thread_func(void)
|
|
{
|
|
int linecnt = 0;
|
|
|
|
#ifdef FRODO_SC
|
|
while (!quit_thyself) {
|
|
|
|
// The order of calls is important here
|
|
if (TheVIC->EmulateCycle())
|
|
TheSID->EmulateLine();
|
|
TheCIA1->CheckIRQs();
|
|
TheCIA2->CheckIRQs();
|
|
TheCIA1->EmulateCycle();
|
|
TheCIA2->EmulateCycle();
|
|
TheCPU->EmulateCycle();
|
|
|
|
if (ThePrefs.Emul1541Proc) {
|
|
TheCPU1541->CountVIATimers(1);
|
|
if (!TheCPU1541->Idle)
|
|
TheCPU1541->EmulateCycle();
|
|
}
|
|
CycleCounter++;
|
|
#else
|
|
while (!quit_thyself) {
|
|
|
|
// The order of calls is important here
|
|
int cycles = TheVIC->EmulateLine();
|
|
TheSID->EmulateLine();
|
|
#if !PRECISE_CIA_CYCLES
|
|
TheCIA1->EmulateLine(ThePrefs.CIACycles);
|
|
TheCIA2->EmulateLine(ThePrefs.CIACycles);
|
|
#endif
|
|
|
|
if (ThePrefs.Emul1541Proc) {
|
|
int cycles_1541 = ThePrefs.FloppyCycles;
|
|
TheCPU1541->CountVIATimers(cycles_1541);
|
|
|
|
if (!TheCPU1541->Idle) {
|
|
// 1541 processor active, alternately execute
|
|
// 6502 and 6510 instructions until both have
|
|
// used up their cycles
|
|
while (cycles >= 0 || cycles_1541 >= 0)
|
|
if (cycles > cycles_1541)
|
|
cycles -= TheCPU->EmulateLine(1);
|
|
else
|
|
cycles_1541 -= TheCPU1541->EmulateLine(1);
|
|
} else
|
|
TheCPU->EmulateLine(cycles);
|
|
} else
|
|
// 1541 processor disabled, only emulate 6510
|
|
TheCPU->EmulateLine(cycles);
|
|
#endif
|
|
linecnt++;
|
|
}
|
|
}
|