SDL_gemevents.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:9k
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_gemevents.c,v 1.1 2002/04/22 21:38:05 wmay Exp $";
- #endif
- /*
- * GEM SDL video driver implementation
- * inspired from the Dummy SDL driver
- *
- * Patrice Mandin
- * and work from
- * Olivier Landemarre, Johan Klockars, Xavier Joubert, Claude Attard
- */
- #include <string.h>
- #include <gem.h>
- #include "SDL.h"
- #include "SDL_sysevents.h"
- #include "SDL_events_c.h"
- #include "SDL_gemvideo.h"
- #include "SDL_gemevents_c.h"
- #include "SDL_atarikeys.h" /* for keyboard scancodes */
- #include "SDL_xbiosinterrupt_s.h"
- /* Defines */
- #define ATARIBIOS_MAXKEYS 128
- /* Variables */
- static unsigned char gem_currentkeyboard[ATARIBIOS_MAXKEYS];
- static unsigned char gem_previouskeyboard[ATARIBIOS_MAXKEYS];
- static unsigned char gem_currentascii[ATARIBIOS_MAXKEYS];
- /* The translation tables from a console scancode to a SDL keysym */
- static SDLKey keymap[ATARIBIOS_MAXKEYS];
- /* Functions prototypes */
- static SDL_keysym *TranslateKey(int scancode, int asciicode, SDL_keysym *keysym);
- static int do_messages(_THIS, short *message);
- static void do_keyboard(short kc, short ks);
- static void do_mouse(_THIS, short mx, short my, short mb, short ks);
- /* Functions */
- static SDL_keysym *TranslateKey(int scancode, int asciicode, SDL_keysym *keysym)
- {
- /* Set the keysym information */
- keysym->scancode = scancode;
- if (asciicode)
- keysym->sym = asciicode;
- else
- keysym->sym = keymap[scancode];
- keysym->mod = KMOD_NONE;
- keysym->unicode = 0;
- return(keysym);
- }
- void GEM_InitOSKeymap(_THIS)
- {
- int i;
- memset(gem_currentkeyboard, 0, sizeof(gem_currentkeyboard));
- memset(gem_previouskeyboard, 0, sizeof(gem_previouskeyboard));
- memset(gem_currentascii, 0, sizeof(gem_currentascii));
- /* Initialize keymap */
- for ( i=0; i<sizeof(keymap); i++ )
- keymap[i] = SDLK_UNKNOWN;
- /* Functions keys */
- for ( i = 0; i<10; i++ )
- keymap[SCANCODE_F1 + i] = SDLK_F1+i;
- /* Cursor keypad */
- keymap[SCANCODE_HELP] = SDLK_HELP;
- keymap[SCANCODE_UNDO] = SDLK_UNDO;
- keymap[SCANCODE_INSERT] = SDLK_INSERT;
- keymap[SCANCODE_CLRHOME] = SDLK_HOME;
- keymap[SCANCODE_UP] = SDLK_UP;
- keymap[SCANCODE_DOWN] = SDLK_DOWN;
- keymap[SCANCODE_RIGHT] = SDLK_RIGHT;
- keymap[SCANCODE_LEFT] = SDLK_LEFT;
- /* Special keys */
- keymap[SCANCODE_ESCAPE] = SDLK_ESCAPE;
- keymap[SCANCODE_BACKSPACE] = SDLK_BACKSPACE;
- keymap[SCANCODE_TAB] = SDLK_TAB;
- keymap[SCANCODE_ENTER] = SDLK_RETURN;
- keymap[SCANCODE_DELETE] = SDLK_DELETE;
- keymap[SCANCODE_LEFTCONTROL] = SDLK_LCTRL;
- keymap[SCANCODE_LEFTSHIFT] = SDLK_LSHIFT;
- keymap[SCANCODE_RIGHTSHIFT] = SDLK_RSHIFT;
- keymap[SCANCODE_LEFTALT] = SDLK_LALT;
- keymap[SCANCODE_CAPSLOCK] = SDLK_CAPSLOCK;
- /* Mouse init */
- GEM_mouse_relative = SDL_FALSE;
- }
- void GEM_PumpEvents(_THIS)
- {
- short mousex, mousey, mouseb, dummy;
- short kstate, prevkc, prevks;
- int i;
- SDL_keysym keysym;
- memset(gem_currentkeyboard,0,sizeof(gem_currentkeyboard));
- prevkc = prevks = 0;
- for (;;)
- {
- int quit, resultat;
- short buffer[8], kc;
- quit = 0;
- resultat = evnt_multi(
- MU_MESAG|MU_TIMER|MU_KEYBD,
- 0,0,0,
- 0,0,0,0,0,
- 0,0,0,0,0,
- buffer,
- 10,
- &dummy,&dummy,&dummy,&kstate,&kc,&dummy
- );
- /* Message event ? */
- if (resultat & MU_MESAG)
- quit = do_messages(this, buffer);
- /* Keyboard event ? */
- if (resultat & MU_KEYBD) {
- if ((prevkc != kc) || (prevks != kstate)) {
- do_keyboard(kc,kstate);
- } else {
- /* Avoid looping, if repeating same key */
- break;
- }
- }
- /* Timer event ? */
- if ((resultat & MU_TIMER) || quit)
- break;
- }
- /* Update mouse */
- graf_mkstate(&mousex, &mousey, &mouseb, &kstate);
- do_mouse(this, mousex, mousey, mouseb, kstate);
- /* Now generate keyboard events */
- for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
- /* Key pressed ? */
- if (gem_currentkeyboard[i] && !gem_previouskeyboard[i])
- SDL_PrivateKeyboard(SDL_PRESSED, TranslateKey(i, gem_currentascii[i], &keysym));
- /* Key unpressed ? */
- if (gem_previouskeyboard[i] && !gem_currentkeyboard[i])
- SDL_PrivateKeyboard(SDL_RELEASED, TranslateKey(i, gem_currentascii[i], &keysym));
- }
- memcpy(gem_previouskeyboard,gem_currentkeyboard,sizeof(gem_previouskeyboard));
- }
- static int do_messages(_THIS, short *message)
- {
- int quit, posted;
- quit=0;
- switch (message[0]) {
- case WM_CLOSED:
- case AP_TERM:
- posted = SDL_PrivateQuit();
- quit=1;
- break;
- case WM_MOVED:
- wind_set(message[3],WF_CURRXYWH,message[4],message[5],message[6],message[7]);
- break;
- case WM_TOPPED:
- wind_set(message[3],WF_TOP,message[4],0,0,0);
- SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
- break;
- case WM_REDRAW:
- GEM_wind_redraw(this, message[3],&message[4]);
- break;
- case WM_ICONIFY:
- case WM_ALLICONIFY:
- wind_set(message[3],WF_ICONIFY,message[4],message[5],message[6],message[7]);
- /* If we're active, make ourselves inactive */
- if ( SDL_GetAppState() & SDL_APPACTIVE ) {
- /* Send an internal deactivate event */
- SDL_PrivateAppActive(0, SDL_APPACTIVE|SDL_APPINPUTFOCUS);
- }
- break;
- case WM_UNICONIFY:
- wind_set(message[3],WF_UNICONIFY,message[4],message[5],message[6],message[7]);
- /* If we're not active, make ourselves active */
- if ( !(SDL_GetAppState() & SDL_APPACTIVE) ) {
- /* Send an internal activate event */
- SDL_PrivateAppActive(1, SDL_APPACTIVE);
- }
- break;
- case WM_SIZED:
- wind_set (message[3], WF_CURRXYWH, message[4], message[5], message[6], message[7]);
- GEM_win_fulled = SDL_FALSE; /* Cancel maximized flag */
- SDL_PrivateResize(message[6], message[7]);
- break;
- case WM_FULLED:
- {
- short x,y,w,h;
- if (GEM_win_fulled) {
- wind_get (message[3], WF_PREVXYWH, &x, &y, &w, &h);
- GEM_win_fulled = SDL_FALSE;
- } else {
- x = GEM_desk_x;
- y = GEM_desk_y;
- w = GEM_desk_w;
- h = GEM_desk_h;
- GEM_win_fulled = SDL_TRUE;
- }
- wind_set (message[3], WF_CURRXYWH, x, y, w, h);
- SDL_PrivateResize(w, h);
- }
- break;
- case WM_BOTTOMED:
- case WM_UNTOPPED:
- SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS);
- break;
- }
- return quit;
- }
- static void do_keyboard(short kc, short ks)
- {
- int scancode, asciicode;
- if (kc) {
- scancode=(kc>>8) & 127;
- asciicode=kc & 255;
- gem_currentkeyboard[scancode]=0xFF;
- gem_currentascii[scancode]=asciicode;
- }
- /* Read special keys */
- if (ks & K_RSHIFT)
- gem_currentkeyboard[SCANCODE_RIGHTSHIFT]=0xFF;
- if (ks & K_LSHIFT)
- gem_currentkeyboard[SCANCODE_LEFTSHIFT]=0xFF;
- if (ks & K_CTRL)
- gem_currentkeyboard[SCANCODE_LEFTCONTROL]=0xFF;
- if (ks & K_ALT)
- gem_currentkeyboard[SCANCODE_LEFTALT]=0xFF;
- }
- static void do_mouse(_THIS, short mx, short my, short mb, short ks)
- {
- static short prevmousex=0, prevmousey=0, prevmouseb=0;
- /* Mouse motion ? */
- if ((prevmousex!=mx) || (prevmousey!=my)) {
- if (GEM_mouse_relative) {
- SDL_PrivateMouseMotion(0, 1, SDL_AtariXbios_mousex, SDL_AtariXbios_mousey);
- SDL_AtariXbios_mousex = SDL_AtariXbios_mousey = 0;
- } else {
- SDL_PrivateMouseMotion(0, 1, mx, my);
- }
- prevmousex = mx;
- prevmousey = my;
- }
- /* Mouse button ? */
- if (prevmouseb!=mb) {
- int i;
- for (i=0;i<2;i++) {
- int curbutton, prevbutton;
- curbutton = mb & (1<<i);
- prevbutton = prevmouseb & (1<<i);
- if (curbutton && !prevbutton) {
- SDL_PrivateMouseButton(SDL_PRESSED, i+1, 0, 0);
- }
- if (!curbutton && prevbutton) {
- SDL_PrivateMouseButton(SDL_RELEASED, i+1, 0, 0);
- }
- }
- prevmouseb = mb;
- }
- /* Read special keys */
- if (ks & K_RSHIFT)
- gem_currentkeyboard[SCANCODE_RIGHTSHIFT]=0xFF;
- if (ks & K_LSHIFT)
- gem_currentkeyboard[SCANCODE_LEFTSHIFT]=0xFF;
- if (ks & K_CTRL)
- gem_currentkeyboard[SCANCODE_LEFTCONTROL]=0xFF;
- if (ks & K_ALT)
- gem_currentkeyboard[SCANCODE_LEFTALT]=0xFF;
- }