Mercurial > sdl-ios-xcode
view src/video/ataricommon/SDL_xbiosevents.c @ 630:550bccdf04bd
Added initial support for RISC OS (thanks Peter Naulls!)
author | Sam Lantinga <slouken@libsdl.org> |
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date | Thu, 29 May 2003 04:44:13 +0000 |
parents | e9278438fb3b |
children | b8d311d90021 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ #ifdef SAVE_RCSID static char rcsid = "@(#) $Id$"; #endif /* * XBIOS mouse & joystick vectors * * Patrice Mandin */ #include <stdlib.h> #include <string.h> #include <mint/osbind.h> #include "SDL_events_c.h" #include "SDL_xbiosevents_c.h" #include "SDL_xbiosinterrupt_s.h" /* Variables */ int SDL_AtariXbios_enabled=0; static _KBDVECS *kbdvecs; /* Pointer to access vectors */ static _KBDVECS sys_kbdvecs; /* Backup of system vectors */ static Uint16 atari_prevmouseb; /* buttons */ void SDL_AtariXbios_InstallVectors(int vectors_mask) { void *oldpile; /* Clear variables */ SDL_AtariXbios_mouseb = SDL_AtariXbios_mousex = SDL_AtariXbios_mousey = SDL_AtariXbios_joystick = atari_prevmouseb = 0; /* Read IKBD vectors base */ kbdvecs=Kbdvbase(); /* Go to supervisor mode */ oldpile=(void *)Super(0); /* Backup system vectors */ memcpy(&sys_kbdvecs, kbdvecs, sizeof(_KBDVECS)); /* Install our vector */ SDL_AtariXbios_Install( kbdvecs, (vectors_mask & ATARI_XBIOS_MOUSEEVENTS) ? SDL_AtariXbios_MouseVector : NULL, (vectors_mask & ATARI_XBIOS_JOYSTICKEVENTS) ? SDL_AtariXbios_JoystickVector : NULL ); /* Back to user mode */ Super(oldpile); SDL_AtariXbios_enabled=1; } void SDL_AtariXbios_RestoreVectors(void) { void *oldpile; /* Go to supervisor mode */ oldpile=(void *)Super(NULL); /* Reinstall system vector */ SDL_AtariXbios_Install(kbdvecs,sys_kbdvecs.mousevec,sys_kbdvecs.joyvec); /* Back to user mode */ Super(oldpile); } static int atari_GetButton(int button) { switch(button) { case 0: return SDL_BUTTON_RIGHT; break; case 1: default: return SDL_BUTTON_LEFT; break; } } void SDL_AtariXbios_PostMouseEvents(_THIS) { /* Mouse motion ? */ if (SDL_AtariXbios_mousex || SDL_AtariXbios_mousey) { SDL_PrivateMouseMotion(0, 1, SDL_AtariXbios_mousex, SDL_AtariXbios_mousey); SDL_AtariXbios_mousex = SDL_AtariXbios_mousey = 0; } /* Mouse button ? */ if (SDL_AtariXbios_mouseb != atari_prevmouseb) { int i; for (i=0;i<2;i++) { int curbutton, prevbutton; curbutton = SDL_AtariXbios_mouseb & (1<<i); prevbutton = atari_prevmouseb & (1<<i); if (curbutton && !prevbutton) { SDL_PrivateMouseButton(SDL_PRESSED, atari_GetButton(i), 0, 0); } if (!curbutton && prevbutton) { SDL_PrivateMouseButton(SDL_RELEASED, atari_GetButton(i), 0, 0); } } atari_prevmouseb = SDL_AtariXbios_mouseb; } }