Updated the Amiga OS port of SDL (thanks Gabriele)
--HG-- extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%4022
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Sam Lantinga
parent
ac645d34ed
commit
df7866c435
26 changed files with 1381 additions and 913 deletions
240
src/joystick/amigaos/SDL_sysjoystick.c
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240
src/joystick/amigaos/SDL_sysjoystick.c
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/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Sam Lantinga
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slouken@devolution.com
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*/
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#ifdef SAVE_RCSID
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static char rcsid =
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"@(#) $Id$";
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#endif
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/* This is the system specific header for the SDL joystick API */
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#include <stdio.h> /* For the definition of NULL */
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#include <libraries/lowlevel.h>
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#ifdef __SASC
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#include <proto/exec.h>
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#include <proto/lowlevel.h>
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#include <proto/graphics.h>
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#else
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#include <inline/exec.h>
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#include <inline/lowlevel.h>
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#include <inline/graphics.h>
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#endif
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#include "mydebug.h"
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extern struct ExecBase *SysBase;
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extern struct GfxBase *GfxBase;
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#include <stdlib.h>
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#include "SDL_error.h"
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#include "SDL_joystick.h"
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#include "SDL_sysjoystick.h"
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#include "SDL_joystick_c.h"
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/* Function to scan the system for joysticks.
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* This function should set SDL_numjoysticks to the number of available
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* joysticks. Joystick 0 should be the system default joystick.
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* It should return 0, or -1 on an unrecoverable fatal error.
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*/
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/* Amiga specific datas */
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struct Library *LowLevelBase=NULL;
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ULONG joybut[]=
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{
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JPF_BUTTON_RED,
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JPF_BUTTON_BLUE,
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JPF_BUTTON_PLAY,
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JPF_BUTTON_YELLOW,
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JPF_BUTTON_GREEN,
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JPF_BUTTON_FORWARD,
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JPF_BUTTON_REVERSE,
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};
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struct joystick_hwdata
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{
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ULONG joystate;
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};
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int SDL_SYS_JoystickInit(void)
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{
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if(!LowLevelBase)
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{
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if(LowLevelBase=OpenLibrary("lowlevel.library",37))
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return 2;
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}
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else
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return 2;
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D(bug("%ld joysticks available.\n",SDL_numjoysticks));
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return 0;
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}
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/* Function to get the device-dependent name of a joystick */
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const char *SDL_SYS_JoystickName(int index)
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{
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if(index<2&&LowLevelBase)
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{
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switch(index)
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{
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case 0:
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return "Port 1 Amiga Joystick/Joypad";
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case 1:
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return "Port 2 Amiga Joystick/Joypad";
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}
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}
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SDL_SetError("No joystick available with that index");
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return(NULL);
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}
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/* Function to open a joystick for use.
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The joystick to open is specified by the index field of the joystick.
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This should fill the nbuttons and naxes fields of the joystick structure.
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It returns 0, or -1 if there is an error.
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*/
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int SDL_SYS_JoystickOpen(SDL_Joystick *joystick)
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{
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ULONG temp,i;
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D(bug("Opening joystick %ld\n",joystick->index));
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if(!(joystick->hwdata=malloc(sizeof(struct joystick_hwdata))))
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return -1;
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/* This loop is to check if the controller is a joypad */
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for(i=0;i<20;i++)
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{
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temp=ReadJoyPort(joystick->index);
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WaitTOF();
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}
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if((temp&JP_TYPE_MASK)==JP_TYPE_GAMECTLR)
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joystick->nbuttons=7;
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else
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joystick->nbuttons=3;
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joystick->nhats=0;
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joystick->nballs=0;
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joystick->naxes=2;
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joystick->hwdata->joystate=0L;
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return 0;
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}
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/* Function to update the state of a joystick - called as a device poll.
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* This function shouldn't update the joystick structure directly,
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* but instead should call SDL_PrivateJoystick*() to deliver events
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* and update joystick device state.
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*/
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void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick)
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{
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ULONG data;
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int i;
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if(joystick->index<2)
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{
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data=ReadJoyPort(joystick->index);
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if(data&JP_DIRECTION_MASK)
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{
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if(data&JPF_JOY_DOWN)
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{
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if(!(joystick->hwdata->joystate&JPF_JOY_DOWN))
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SDL_PrivateJoystickAxis(joystick,0,127);
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}
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else if(data&JPF_JOY_UP)
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{
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if(!(joystick->hwdata->joystate&JPF_JOY_UP))
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SDL_PrivateJoystickAxis(joystick,0,-127);
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}
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else if(joystick->hwdata->joystate&(JPF_JOY_UP|JPF_JOY_DOWN))
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SDL_PrivateJoystickAxis(joystick,0,0);
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if(data&JPF_JOY_LEFT)
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{
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if(!(joystick->hwdata->joystate&JPF_JOY_LEFT))
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SDL_PrivateJoystickAxis(joystick,1,-127);
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}
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else if(data&JPF_JOY_RIGHT)
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{
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if(!(joystick->hwdata->joystate&JPF_JOY_RIGHT))
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SDL_PrivateJoystickAxis(joystick,1,127);
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}
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else if(joystick->hwdata->joystate&(JPF_JOY_LEFT|JPF_JOY_RIGHT))
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SDL_PrivateJoystickAxis(joystick,1,0);
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}
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else if(joystick->hwdata->joystate&(JPF_JOY_LEFT|JPF_JOY_RIGHT))
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{
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SDL_PrivateJoystickAxis(joystick,1,0);
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}
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else if(joystick->hwdata->joystate&(JPF_JOY_UP|JPF_JOY_DOWN))
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{
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SDL_PrivateJoystickAxis(joystick,0,0);
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}
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for(i=0;i<joystick->nbuttons;i++)
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{
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if( (data&joybut[i]) )
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{
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if(i==1)
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data&=(~(joybut[2]));
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if(!(joystick->hwdata->joystate&joybut[i]))
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SDL_PrivateJoystickButton(joystick,i,SDL_PRESSED);
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}
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else if(joystick->hwdata->joystate&joybut[i])
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SDL_PrivateJoystickButton(joystick,i,SDL_RELEASED);
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}
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joystick->hwdata->joystate=data;
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}
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return;
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}
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/* Function to close a joystick after use */
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void SDL_SYS_JoystickClose(SDL_Joystick *joystick)
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{
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if(joystick->hwdata)
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free(joystick->hwdata);
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return;
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}
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/* Function to perform any system-specific joystick related cleanup */
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void SDL_SYS_JoystickQuit(void)
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{
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if(LowLevelBase)
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{
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CloseLibrary(LowLevelBase);
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LowLevelBase=NULL;
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SDL_numjoysticks=0;
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}
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return;
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}
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