SDL_xbiosevents.c
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:3k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- 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: SDL_xbiosevents.c,v 1.1 2002/04/22 21:38:04 wmay Exp $";
- #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;
- }
- }