X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fcli%2Fsdl-joystick.c;fp=drivers%2Fcli%2Fsdl-joystick.c;h=1a3fecfcf006f8f9dc842a138995ce65d4f16de8;hb=63bd5be0436de94860a00c34048fa4c6c131ece3;hp=0000000000000000000000000000000000000000;hpb=13624c8f3ac5cd1b255a5078c5401b0f97037964;p=fceu.git diff --git a/drivers/cli/sdl-joystick.c b/drivers/cli/sdl-joystick.c new file mode 100644 index 0000000..1a3fecf --- /dev/null +++ b/drivers/cli/sdl-joystick.c @@ -0,0 +1,200 @@ +/* FCE Ultra - NES/Famicom Emulator + * + * Copyright notice for this file: + * Copyright (C) 2002 Ben Parnell + * Copyright (C) 2002 Paul Kuliniewicz + * + * This program 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 2 of the License, or + * (at your option) any later version. + * + * This program 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* PK: SDL joystick input stuff */ + +#include +#include +#include +#include + +#include "sdl.h" +static SDL_Joystick *jo[4] = {NULL, NULL, NULL, NULL}; + +static void ConfigJoystick (int z); + +#define JOY_A 0x01 +#define JOY_B 0x02 +#define JOY_SELECT 0x04 +#define JOY_START 0x08 +#define JOY_UP 0x10 +#define JOY_DOWN 0x20 +#define JOY_LEFT 0x40 +#define JOY_RIGHT 0x80 + +/* Gets the current joystick position information. */ +uint32 GetJSOr (void) +{ + int n; /* joystick index */ + int b; /* button index */ + int *joym; /* pointer to a joystick's button map */ + Sint16 pos; /* axis position */ + uint32 ret = 0; /* return value */ + + for (n = 0; n < 4; n++) + { + if (joy[n] == 0) + continue; + joym = joyBMap[n]; + + /* Axis information. */ + pos = SDL_JoystickGetAxis(jo[n], joyAMap[n][0]); + if (pos <= -16383) + ret |= JOY_LEFT << (n << 3); + else if (pos >= 16363) + ret |= JOY_RIGHT << (n << 3); + pos = SDL_JoystickGetAxis(jo[n], joyAMap[n][1]); + if (pos <= -16383) + ret |= JOY_UP << (n << 3); + else if (pos >= 16383) + ret |= JOY_DOWN << (n << 3); + + /* Button information. */ + for (b = 0; b < 4; b++) + { + if (SDL_JoystickGetButton(jo[n], joym[b])) + ret |= (1 << b) << (n << 3); + } + } + + return ret; +} + +/* Cleanup opened joysticks. */ +void KillJoysticks (void) +{ + int n; /* joystick index */ + + for (n = 0; n < 4; n++) + { + if (joy[n] != 0) + SDL_JoystickClose(jo[n]); + } + SDL_QuitSubSystem(SDL_INIT_JOYSTICK); + return; +} + +/* Initialize joysticks. */ +int InitJoysticks (void) +{ + int n; /* joystick index */ + if(!(joy[0]|joy[1]|joy[2]|joy[3])) + return(0); + SDL_InitSubSystem(SDL_INIT_JOYSTICK); + for (n = 0; n < 4; n++) + { + if (joy[n] == 0) + continue; + + /* Open the joystick under SDL. */ + jo[n] = SDL_JoystickOpen(joy[n] - 1); + if (jo[n] == NULL) + { + printf("Could not open joystick %d: %s.\n", + joy[n] - 1, SDL_GetError()); + joy[n] = 0; + continue; + } + + /* Check for a button map. */ + if (!(joyBMap[n][0] | joyBMap[n][1] | joyBMap[n][2] | + joyBMap[n][3])) + { + ConfigJoystick(n); + } + } + + return (1); +} + +#define WNOINPUT(); for(;;){uint8 t; if(read(fileno(stdin),&t,1)==-1) \ + {break;}} + +/* Configure a joystick button. */ +static void BConfig (int n, int b) +{ + SDL_Event event; /* SDL event structure */ + WNOINPUT(); + while (1) + { + uint8 t; + if (read(fileno(stdin), &t, 1) == -1) + { + if (errno != EAGAIN) + break; + } + else + break; + + if (SDL_PollEvent(&event) && event.type == SDL_JOYBUTTONDOWN) + { + joyBMap[n][b] = event.jbutton.button; + goto endsa; + } + } + + endsa: + WNOINPUT(); + + return; +} + +/* Joystick button and axis configuration. */ +void ConfigJoystick (int n) +{ + int sa; /* buffer value */ + char buf[128]; /* input buffer */ + + printf("\n\n Joystick button and axis configuration:\n\n"); + printf(" Select the joystick axes to use for the virtual d-pad.\n"); + printf(" If you do not wish to assign an axis, press Enter to skip\n"); + printf(" that axis.\n"); + printf(" Push the button to map to the virtual joystick.\n"); + printf(" If you do not wish to assign a button, press Enter to skip\n"); + printf(" that button.\n Press enter to continue...\n"); + getchar(); + printf("**** Configuring joystick %d ****\n\n", n + 1); + + printf("** Enter axis to use for the x-axis (default 0).\n"); + fgets(buf, sizeof(buf), stdin); + joyAMap[n][0] = ('0' <= buf[0] && buf[9] <= '9') ? atoi(buf) : 0; + + printf("** Enter axis to use for the y-axis (default 1).\n"); + fgets(buf, sizeof(buf), stdin); + joyAMap[n][1] = ('0' <= buf[0] && buf[9] <= '9') ? atoi(buf) : 1; + + sa = fcntl(fileno(stdin), F_GETFL); + fcntl(fileno(stdin), F_SETFL, O_NONBLOCK); + + printf("** Press button for \"Select\".\n"); + BConfig(n, 2); + + printf("** Press button for \"Start\".\n"); + BConfig(n, 3); + + printf("** Press button for \"B\".\n"); + BConfig(n, 1); + + printf("** Press button for \"A\".\n"); + BConfig(n, 0); + + fcntl(fileno(stdin), F_SETFL, sa); +}