diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/joystick/amigaos/SDL_sysjoystick.c')
| -rw-r--r-- | distrib/sdl-1.2.12/src/joystick/amigaos/SDL_sysjoystick.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.12/src/joystick/amigaos/SDL_sysjoystick.c b/distrib/sdl-1.2.12/src/joystick/amigaos/SDL_sysjoystick.c new file mode 100644 index 0000000..35e4ebe --- /dev/null +++ b/distrib/sdl-1.2.12/src/joystick/amigaos/SDL_sysjoystick.c @@ -0,0 +1,233 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2006 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" + +#ifdef SDL_JOYSTICK_AMIGA + +/* This is the system specific header for the SDL joystick API */ + +#include <libraries/lowlevel.h> +#if defined(__SASC) || defined(STORMC4_WOS) +#include <proto/exec.h> +#include <proto/lowlevel.h> +#include <proto/graphics.h> +#else +#include <inline/exec.h> +#include <inline/lowlevel.h> +#include <inline/graphics.h> +#endif +#include "mydebug.h" + +extern struct ExecBase *SysBase; +extern struct GfxBase *GfxBase; + +#include "SDL_joystick.h" +#include "../SDL_sysjoystick.h" +#include "../SDL_joystick_c.h" + +/* Function to scan the system for joysticks. + * This function should set SDL_numjoysticks to the number of available + * joysticks. Joystick 0 should be the system default joystick. + * It should return 0, or -1 on an unrecoverable fatal error. + */ + + +/* Amiga specific datas */ +struct Library *LowLevelBase=NULL; + +ULONG joybut[]= +{ + JPF_BUTTON_RED, + JPF_BUTTON_BLUE, + JPF_BUTTON_PLAY, + JPF_BUTTON_YELLOW, + JPF_BUTTON_GREEN, + JPF_BUTTON_FORWARD, + JPF_BUTTON_REVERSE, +}; + +struct joystick_hwdata +{ + ULONG joystate; +}; + +int SDL_SYS_JoystickInit(void) +{ + if(!LowLevelBase) + { + if(LowLevelBase=OpenLibrary("lowlevel.library",37)) + return 2; + } + else + return 2; + + D(bug("%ld joysticks available.\n",SDL_numjoysticks)); + + return 0; +} + +/* Function to get the device-dependent name of a joystick */ +const char *SDL_SYS_JoystickName(int index) +{ + if(index<2&&LowLevelBase) + { + switch(index) + { + case 0: + return "Port 1 Amiga Joystick/Joypad"; + case 1: + return "Port 2 Amiga Joystick/Joypad"; + } + } + + SDL_SetError("No joystick available with that index"); + return(NULL); +} + +/* Function to open a joystick for use. + The joystick to open is specified by the index field of the joystick. + This should fill the nbuttons and naxes fields of the joystick structure. + It returns 0, or -1 if there is an error. + */ + +int SDL_SYS_JoystickOpen(SDL_Joystick *joystick) +{ + ULONG temp,i; + D(bug("Opening joystick %ld\n",joystick->index)); + + if(!(joystick->hwdata=SDL_malloc(sizeof(struct joystick_hwdata)))) + return -1; + +/* This loop is to check if the controller is a joypad */ + + for(i=0;i<20;i++) + { + temp=ReadJoyPort(joystick->index^1); // fix to invert amiga joyports + WaitTOF(); + } + + if((temp&JP_TYPE_MASK)==JP_TYPE_GAMECTLR) + joystick->nbuttons=7; + else + joystick->nbuttons=3; + + joystick->nhats=0; + joystick->nballs=0; + joystick->naxes=2; + joystick->hwdata->joystate=0L; + + return 0; +} + +/* Function to update the state of a joystick - called as a device poll. + * This function shouldn't update the joystick structure directly, + * but instead should call SDL_PrivateJoystick*() to deliver events + * and update joystick device state. + */ +void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick) +{ + ULONG data; + int i; + + if(joystick->index<2) + { + data=ReadJoyPort(joystick->index); + + if(data&JP_DIRECTION_MASK) + { + if(data&JPF_JOY_DOWN) + { + if(!(joystick->hwdata->joystate&JPF_JOY_DOWN)) + SDL_PrivateJoystickAxis(joystick,0,127); + } + else if(data&JPF_JOY_UP) + { + if(!(joystick->hwdata->joystate&JPF_JOY_UP)) + SDL_PrivateJoystickAxis(joystick,0,-127); + } + else if(joystick->hwdata->joystate&(JPF_JOY_UP|JPF_JOY_DOWN)) + SDL_PrivateJoystickAxis(joystick,0,0); + + if(data&JPF_JOY_LEFT) + { + if(!(joystick->hwdata->joystate&JPF_JOY_LEFT)) + SDL_PrivateJoystickAxis(joystick,1,-127); + } + else if(data&JPF_JOY_RIGHT) + { + if(!(joystick->hwdata->joystate&JPF_JOY_RIGHT)) + SDL_PrivateJoystickAxis(joystick,1,127); + } + else if(joystick->hwdata->joystate&(JPF_JOY_LEFT|JPF_JOY_RIGHT)) + SDL_PrivateJoystickAxis(joystick,1,0); + } + else if(joystick->hwdata->joystate&(JPF_JOY_LEFT|JPF_JOY_RIGHT)) + { + SDL_PrivateJoystickAxis(joystick,1,0); + } + else if(joystick->hwdata->joystate&(JPF_JOY_UP|JPF_JOY_DOWN)) + { + SDL_PrivateJoystickAxis(joystick,0,0); + } + + for(i=0;i<joystick->nbuttons;i++) + { + if( (data&joybut[i]) ) + { + if(i==1) + data&=(~(joybut[2])); + + if(!(joystick->hwdata->joystate&joybut[i])) + SDL_PrivateJoystickButton(joystick,i,SDL_PRESSED); + } + else if(joystick->hwdata->joystate&joybut[i]) + SDL_PrivateJoystickButton(joystick,i,SDL_RELEASED); + } + + joystick->hwdata->joystate=data; + } + + return; +} + +/* Function to close a joystick after use */ +void SDL_SYS_JoystickClose(SDL_Joystick *joystick) +{ + if(joystick->hwdata) + SDL_free(joystick->hwdata); + return; +} + +/* Function to perform any system-specific joystick related cleanup */ + +void SDL_SYS_JoystickQuit(void) +{ + if(LowLevelBase) + { + CloseLibrary(LowLevelBase); + LowLevelBase=NULL; + SDL_numjoysticks=0; + } + return; +} + +#endif /* SDL_JOYSTICK_AMIGA */ |