SDL_fbevents.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:29k
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_fbevents.c,v 1.4 2002/04/22 21:38:04 wmay Exp $";
- #endif
- /* Handle the event stream, converting console events into SDL events */
- #include <sys/types.h>
- #include <sys/time.h>
- #include <sys/ioctl.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include <unistd.h>
- #include <fcntl.h>
- #include <string.h>
- #include <errno.h>
- #include <limits.h>
- /* For parsing /proc */
- #include <dirent.h>
- #include <ctype.h>
- #include <linux/vt.h>
- #include <linux/kd.h>
- #include <linux/keyboard.h>
- #include "SDL.h"
- #include "SDL_mutex.h"
- #include "SDL_sysevents.h"
- #include "SDL_sysvideo.h"
- #include "SDL_events_c.h"
- #include "SDL_fbvideo.h"
- #include "SDL_fbevents_c.h"
- #include "SDL_fbkeys.h"
- #include "SDL_fbelo.h"
- #ifndef GPM_NODE_FIFO
- #define GPM_NODE_FIFO "/dev/gpmdata"
- #endif
- /* The translation tables from a console scancode to a SDL keysym */
- #define NUM_VGAKEYMAPS (1<<KG_CAPSSHIFT)
- static Uint16 vga_keymap[NUM_VGAKEYMAPS][NR_KEYS];
- static SDLKey keymap[128];
- static Uint16 keymap_temp[128]; /* only used at startup */
- static SDL_keysym *TranslateKey(int scancode, SDL_keysym *keysym);
- /* Ugh, we have to duplicate the kernel's keysym mapping code...
- Oh, it's not so bad. :-)
- FIXME: Add keyboard LED handling code
- */
- static void FB_vgainitkeymaps(int fd)
- {
- struct kbentry entry;
- int map, i;
- /* Don't do anything if we are passed a closed keyboard */
- if ( fd < 0 ) {
- return;
- }
- /* Load all the keysym mappings */
- for ( map=0; map<NUM_VGAKEYMAPS; ++map ) {
- memset(vga_keymap[map], 0, NR_KEYS*sizeof(Uint16));
- for ( i=0; i<NR_KEYS; ++i ) {
- entry.kb_table = map;
- entry.kb_index = i;
- if ( ioctl(fd, KDGKBENT, &entry) == 0 ) {
- /* fill keytemp. This replaces SDL_fbkeys.h */
- if ( (map == 0) && (i<128) ) {
- keymap_temp[i] = entry.kb_value;
- }
- /* The "Enter" key is a special case */
- if ( entry.kb_value == K_ENTER ) {
- entry.kb_value = K(KT_ASCII,13);
- }
- /* Handle numpad specially as well */
- if ( KTYP(entry.kb_value) == KT_PAD ) {
- switch ( entry.kb_value ) {
- case K_P0:
- case K_P1:
- case K_P2:
- case K_P3:
- case K_P4:
- case K_P5:
- case K_P6:
- case K_P7:
- case K_P8:
- case K_P9:
- vga_keymap[map][i]=entry.kb_value;
- vga_keymap[map][i]+= '0';
- break;
- case K_PPLUS:
- vga_keymap[map][i]=K(KT_ASCII,'+');
- break;
- case K_PMINUS:
- vga_keymap[map][i]=K(KT_ASCII,'-');
- break;
- case K_PSTAR:
- vga_keymap[map][i]=K(KT_ASCII,'*');
- break;
- case K_PSLASH:
- vga_keymap[map][i]=K(KT_ASCII,'/');
- break;
- case K_PENTER:
- vga_keymap[map][i]=K(KT_ASCII,'r');
- break;
- case K_PCOMMA:
- vga_keymap[map][i]=K(KT_ASCII,',');
- break;
- case K_PDOT:
- vga_keymap[map][i]=K(KT_ASCII,'.');
- break;
- default:
- break;
- }
- }
- /* Do the normal key translation */
- if ( (KTYP(entry.kb_value) == KT_LATIN) ||
- (KTYP(entry.kb_value) == KT_ASCII) ||
- (KTYP(entry.kb_value) == KT_LETTER) ) {
- vga_keymap[map][i] = entry.kb_value;
- }
- }
- }
- }
- }
- int FB_InGraphicsMode(_THIS)
- {
- return((keyboard_fd >= 0) && (saved_kbd_mode >= 0));
- }
- int FB_EnterGraphicsMode(_THIS)
- {
- struct termios keyboard_termios;
- /* Set medium-raw keyboard mode */
- if ( (keyboard_fd >= 0) && !FB_InGraphicsMode(this) ) {
- /* Switch to the correct virtual terminal */
- if ( current_vt > 0 ) {
- struct vt_stat vtstate;
- if ( ioctl(keyboard_fd, VT_GETSTATE, &vtstate) == 0 ) {
- saved_vt = vtstate.v_active;
- }
- if ( ioctl(keyboard_fd, VT_ACTIVATE, current_vt) == 0 ) {
- ioctl(keyboard_fd, VT_WAITACTIVE, current_vt);
- }
- }
- /* Set the terminal input mode */
- if ( tcgetattr(keyboard_fd, &saved_kbd_termios) < 0 ) {
- SDL_SetError("Unable to get terminal attributes");
- if ( keyboard_fd > 0 ) {
- close(keyboard_fd);
- }
- keyboard_fd = -1;
- return(-1);
- }
- if ( ioctl(keyboard_fd, KDGKBMODE, &saved_kbd_mode) < 0 ) {
- SDL_SetError("Unable to get current keyboard mode");
- if ( keyboard_fd > 0 ) {
- close(keyboard_fd);
- }
- keyboard_fd = -1;
- return(-1);
- }
- keyboard_termios = saved_kbd_termios;
- keyboard_termios.c_lflag &= ~(ICANON | ECHO | ISIG);
- keyboard_termios.c_iflag &= ~(ISTRIP | IGNCR | ICRNL | INLCR | IXOFF | IXON);
- keyboard_termios.c_cc[VMIN] = 0;
- keyboard_termios.c_cc[VTIME] = 0;
- if (tcsetattr(keyboard_fd, TCSAFLUSH, &keyboard_termios) < 0) {
- FB_CloseKeyboard(this);
- SDL_SetError("Unable to set terminal attributes");
- return(-1);
- }
- /* This will fail if we aren't root or this isn't our tty */
- if ( ioctl(keyboard_fd, KDSKBMODE, K_MEDIUMRAW) < 0 ) {
- FB_CloseKeyboard(this);
- SDL_SetError("Unable to set keyboard in raw mode");
- return(-1);
- }
- if ( ioctl(keyboard_fd, KDSETMODE, KD_GRAPHICS) < 0 ) {
- FB_CloseKeyboard(this);
- SDL_SetError("Unable to set keyboard in graphics mode");
- return(-1);
- }
- }
- return(keyboard_fd);
- }
- void FB_LeaveGraphicsMode(_THIS)
- {
- if ( FB_InGraphicsMode(this) ) {
- ioctl(keyboard_fd, KDSETMODE, KD_TEXT);
- ioctl(keyboard_fd, KDSKBMODE, saved_kbd_mode);
- tcsetattr(keyboard_fd, TCSAFLUSH, &saved_kbd_termios);
- saved_kbd_mode = -1;
- /* Head back over to the original virtual terminal */
- if ( saved_vt > 0 ) {
- ioctl(keyboard_fd, VT_ACTIVATE, saved_vt);
- }
- }
- }
- void FB_CloseKeyboard(_THIS)
- {
- if ( keyboard_fd >= 0 ) {
- FB_LeaveGraphicsMode(this);
- if ( keyboard_fd > 0 ) {
- close(keyboard_fd);
- }
- }
- keyboard_fd = -1;
- }
- int FB_OpenKeyboard(_THIS)
- {
- /* Open only if not already opened */
- if ( keyboard_fd < 0 ) {
- static const char * const tty0[] = { "/dev/tty0", "/dev/vc/0", NULL };
- static const char * const vcs[] = { "/dev/vc/%d", "/dev/tty%d", NULL };
- int i, tty0_fd;
- /* Try to query for a free virtual terminal */
- tty0_fd = -1;
- for ( i=0; tty0[i] && (tty0_fd < 0); ++i ) {
- tty0_fd = open(tty0[i], O_WRONLY, 0);
- }
- if ( tty0_fd < 0 ) {
- tty0_fd = dup(0); /* Maybe stdin is a VT? */
- }
- ioctl(tty0_fd, VT_OPENQRY, ¤t_vt);
- close(tty0_fd);
- if ( (geteuid() == 0) && (current_vt > 0) ) {
- for ( i=0; vcs[i] && (keyboard_fd < 0); ++i ) {
- char vtpath[12];
- sprintf(vtpath, vcs[i], current_vt);
- keyboard_fd = open(vtpath, O_RDWR, 0);
- #ifdef DEBUG_KEYBOARD
- fprintf(stderr, "vtpath = %s, fd = %dn",
- vtpath, keyboard_fd);
- #endif /* DEBUG_KEYBOARD */
- /* This needs to be our controlling tty
- so that the kernel ioctl() calls work
- */
- if ( keyboard_fd >= 0 ) {
- tty0_fd = open("/dev/tty", O_RDWR, 0);
- if ( tty0_fd >= 0 ) {
- ioctl(tty0_fd, TIOCNOTTY, 0);
- close(tty0_fd);
- }
- }
- }
- }
- if ( keyboard_fd < 0 ) {
- /* Last resort, maybe our tty is a usable VT */
- current_vt = 0;
- keyboard_fd = open("/dev/tty", O_RDWR);
- }
- #ifdef DEBUG_KEYBOARD
- fprintf(stderr, "Current VT: %dn", current_vt);
- #endif
- saved_kbd_mode = -1;
- /* Make sure that our input is a console terminal */
- { int dummy;
- if ( ioctl(keyboard_fd, KDGKBMODE, &dummy) < 0 ) {
- close(keyboard_fd);
- keyboard_fd = -1;
- SDL_SetError("Unable to open a console terminal");
- }
- }
- /* Set up keymap */
- FB_vgainitkeymaps(keyboard_fd);
- }
- return(keyboard_fd);
- }
- static enum {
- MOUSE_NONE = -1,
- MOUSE_MSC, /* Note: GPM uses the MSC protocol */
- MOUSE_PS2,
- MOUSE_IMPS2,
- MOUSE_MS,
- MOUSE_BM,
- MOUSE_ELO,
- NUM_MOUSE_DRVS
- } mouse_drv = MOUSE_NONE;
- void FB_CloseMouse(_THIS)
- {
- if ( mouse_fd > 0 ) {
- close(mouse_fd);
- }
- mouse_fd = -1;
- }
- /* Returns processes listed in /proc with the desired name */
- static int find_pid(DIR *proc, const char *wanted_name)
- {
- struct dirent *entry;
- int pid;
- /* First scan proc for the gpm process */
- pid = 0;
- while ( (pid == 0) && ((entry=readdir(proc)) != NULL) ) {
- if ( isdigit(entry->d_name[0]) ) {
- FILE *status;
- char path[PATH_MAX];
- char name[PATH_MAX];
- sprintf(path, "/proc/%s/status", entry->d_name);
- status=fopen(path, "r");
- if ( status ) {
- name[0] = ' ';
- fscanf(status, "Name: %s", name);
- if ( strcmp(name, wanted_name) == 0 ) {
- pid = atoi(entry->d_name);
- }
- fclose(status);
- }
- }
- }
- return pid;
- }
- /* Returns true if /dev/gpmdata is being written to by gpm */
- static int gpm_available(void)
- {
- int available;
- DIR *proc;
- int pid;
- int cmdline, len, arglen;
- char path[PATH_MAX];
- char args[PATH_MAX], *arg;
- /* Don't bother looking if the fifo isn't there */
- if ( access(GPM_NODE_FIFO, F_OK) < 0 ) {
- return(0);
- }
- available = 0;
- proc = opendir("/proc");
- if ( proc ) {
- while ( (pid=find_pid(proc, "gpm")) > 0 ) {
- sprintf(path, "/proc/%d/cmdline", pid);
- cmdline = open(path, O_RDONLY, 0);
- if ( cmdline >= 0 ) {
- len = read(cmdline, args, sizeof(args));
- arg = args;
- while ( len > 0 ) {
- if ( strcmp(arg, "-R") == 0 ) {
- available = 1;
- }
- arglen = strlen(arg)+1;
- len -= arglen;
- arg += arglen;
- }
- close(cmdline);
- }
- }
- closedir(proc);
- }
- return available;
- }
- /* rcg06112001 Set up IMPS/2 mode, if possible. This gives
- * us access to the mousewheel, etc. Returns zero if
- * writes to device failed, but you still need to query the
- * device to see which mode it's actually in.
- */
- static int set_imps2_mode(int fd)
- {
- /* If you wanted to control the mouse mode (and we do :) ) ...
- Set IMPS/2 protocol:
- {0xf3,200,0xf3,100,0xf3,80}
- Reset mouse device:
- {0xFF}
- */
- Uint8 set_imps2[] = {0xf3, 200, 0xf3, 100, 0xf3, 80};
- Uint8 reset = 0xff;
- fd_set fdset;
- struct timeval tv;
- int retval = 0;
- if ( write(fd, &set_imps2, sizeof(set_imps2)) == sizeof(set_imps2) ) {
- if (write(fd, &reset, sizeof (reset)) == sizeof (reset) ) {
- retval = 1;
- }
- }
- /* Get rid of any chatter from the above */
- FD_ZERO(&fdset);
- FD_SET(fd, &fdset);
- tv.tv_sec = 0;
- tv.tv_usec = 0;
- while ( select(fd+1, &fdset, 0, 0, &tv) > 0 ) {
- char temp[32];
- read(fd, temp, sizeof(temp));
- }
- return retval;
- }
- /* Returns true if the mouse uses the IMPS/2 protocol */
- static int detect_imps2(int fd)
- {
- int imps2;
- imps2 = 0;
- if ( getenv("SDL_MOUSEDEV_IMPS2") ) {
- imps2 = 1;
- }
- if ( ! imps2 ) {
- Uint8 query_ps2 = 0xF2;
- fd_set fdset;
- struct timeval tv;
- /* Get rid of any mouse motion noise */
- FD_ZERO(&fdset);
- FD_SET(fd, &fdset);
- tv.tv_sec = 0;
- tv.tv_usec = 0;
- while ( select(fd+1, &fdset, 0, 0, &tv) > 0 ) {
- char temp[32];
- read(fd, temp, sizeof(temp));
- }
- /* Query for the type of mouse protocol */
- if ( write(fd, &query_ps2, sizeof (query_ps2)) == sizeof (query_ps2)) {
- Uint8 ch = 0;
- /* Get the mouse protocol response */
- do {
- FD_ZERO(&fdset);
- FD_SET(fd, &fdset);
- tv.tv_sec = 1;
- tv.tv_usec = 0;
- if ( select(fd+1, &fdset, 0, 0, &tv) < 1 ) {
- break;
- }
- } while ( (read(fd, &ch, sizeof (ch)) == sizeof (ch)) &&
- ((ch == 0xFA) || (ch == 0xAA)) );
- /* Experimental values (Logitech wheelmouse) */
- #ifdef DEBUG_MOUSE
- fprintf(stderr, "Last mouse mode: 0x%xn", ch);
- #endif
- if ( (ch == 3) || (ch == 4) ) {
- imps2 = 1;
- }
- }
- }
- return imps2;
- }
- int FB_OpenMouse(_THIS)
- {
- int i;
- const char *mousedev;
- const char *mousedrv;
- mousedrv = getenv("SDL_MOUSEDRV");
- mousedev = getenv("SDL_MOUSEDEV");
- mouse_fd = -1;
- /* ELO TOUCHSCREEN SUPPORT */
- if( (mousedrv != NULL) && (strcmp(mousedrv, "ELO") == 0) ) {
- mouse_fd = open(mousedev, O_RDWR);
- if ( mouse_fd >= 0 ) {
- if(eloInitController(mouse_fd)) {
- #ifdef DEBUG_MOUSE
- fprintf(stderr, "Using ELO touchscreenn");
- #endif
- mouse_drv = MOUSE_ELO;
- }
- }
- else if ( mouse_fd < 0 ) {
- mouse_drv = MOUSE_NONE;
- }
- return(mouse_fd);
- }
- /* STD MICE */
- if ( mousedev == NULL ) {
- /* FIXME someday... allow multiple mice in this driver */
- static const char * const ps2mice[] = {
- "/dev/input/mice", "/dev/usbmouse", "/dev/psaux", NULL
- };
- /* First try to use GPM in repeater mode */
- if ( mouse_fd < 0 ) {
- if ( gpm_available() ) {
- mouse_fd = open(GPM_NODE_FIFO, O_RDONLY, 0);
- if ( mouse_fd >= 0 ) {
- #ifdef DEBUG_MOUSE
- fprintf(stderr, "Using GPM mousen");
- #endif
- mouse_drv = MOUSE_MSC;
- }
- }
- }
- /* Now try to use a modern PS/2 mouse */
- for ( i=0; (mouse_fd < 0) && ps2mice[i]; ++i ) {
- mouse_fd = open(ps2mice[i], O_RDWR, 0);
- if (mouse_fd < 0) {
- mouse_fd = open(ps2mice[i], O_RDONLY, 0);
- }
- if (mouse_fd >= 0) {
- /* rcg06112001 Attempt to set IMPS/2 mode */
- if ( i == 0 ) {
- set_imps2_mode(mouse_fd);
- }
- if (detect_imps2(mouse_fd)) {
- #ifdef DEBUG_MOUSE
- fprintf(stderr, "Using IMPS2 mousen");
- #endif
- mouse_drv = MOUSE_IMPS2;
- } else {
- #ifdef DEBUG_MOUSE
- fprintf(stderr, "Using PS2 mousen");
- #endif
- mouse_drv = MOUSE_PS2;
- }
- }
- }
- /* Next try to use a PPC ADB port mouse */
- if ( mouse_fd < 0 ) {
- mouse_fd = open("/dev/adbmouse", O_RDONLY, 0);
- if ( mouse_fd >= 0 ) {
- #ifdef DEBUG_MOUSE
- fprintf(stderr, "Using ADB mousen");
- #endif
- mouse_drv = MOUSE_BM;
- }
- }
- }
- /* Default to a serial Microsoft mouse */
- if ( mouse_fd < 0 ) {
- if ( mousedev == NULL ) {
- mousedev = "/dev/mouse";
- }
- mouse_fd = open(mousedev, O_RDONLY, 0);
- if ( mouse_fd >= 0 ) {
- struct termios mouse_termios;
- /* Set the sampling speed to 1200 baud */
- tcgetattr(mouse_fd, &mouse_termios);
- mouse_termios.c_iflag = IGNBRK | IGNPAR;
- mouse_termios.c_oflag = 0;
- mouse_termios.c_lflag = 0;
- mouse_termios.c_line = 0;
- mouse_termios.c_cc[VTIME] = 0;
- mouse_termios.c_cc[VMIN] = 1;
- mouse_termios.c_cflag = CREAD | CLOCAL | HUPCL;
- mouse_termios.c_cflag |= CS8;
- mouse_termios.c_cflag |= B1200;
- tcsetattr(mouse_fd, TCSAFLUSH, &mouse_termios);
- #ifdef DEBUG_MOUSE
- fprintf(stderr, "Using Microsoft mouse on %sn", mousedev);
- #endif
- mouse_drv = MOUSE_MS;
- }
- }
- if ( mouse_fd < 0 ) {
- mouse_drv = MOUSE_NONE;
- }
- return(mouse_fd);
- }
- static int posted = 0;
- void FB_vgamousecallback(int button, int relative, int dx, int dy)
- {
- int button_1, button_3;
- int button_state;
- int state_changed;
- int i;
- Uint8 state;
- if ( dx || dy ) {
- posted += SDL_PrivateMouseMotion(0, relative, dx, dy);
- }
- /* Swap button 1 and 3 */
- button_1 = (button & 0x04) >> 2;
- button_3 = (button & 0x01) << 2;
- button &= ~0x05;
- button |= (button_1|button_3);
- /* See what changed */
- button_state = SDL_GetMouseState(NULL, NULL);
- state_changed = button_state ^ button;
- for ( i=0; i<8; ++i ) {
- if ( state_changed & (1<<i) ) {
- if ( button & (1<<i) ) {
- state = SDL_PRESSED;
- } else {
- state = SDL_RELEASED;
- }
- posted += SDL_PrivateMouseButton(state, i+1, 0, 0);
- }
- }
- }
- /* For now, use MSC, PS/2, and MS protocols
- Driver adapted from the SVGAlib mouse driver code (taken from gpm, etc.)
- */
- static void handle_mouse(_THIS)
- {
- static int start = 0;
- static unsigned char mousebuf[BUFSIZ];
- static int relative = 1;
- int i, nread;
- int button = 0;
- int dx = 0, dy = 0;
- int packetsize = 0;
- int realx, realy;
- /* Figure out the mouse packet size */
- switch (mouse_drv) {
- case MOUSE_NONE:
- /* Ack! */
- read(mouse_fd, mousebuf, BUFSIZ);
- return;
- case MOUSE_MSC:
- packetsize = 5;
- break;
- case MOUSE_IMPS2:
- packetsize = 4;
- break;
- case MOUSE_PS2:
- case MOUSE_MS:
- case MOUSE_BM:
- packetsize = 3;
- break;
- case MOUSE_ELO:
- packetsize = ELO_PACKET_SIZE;
- relative = 0;
- break;
- case NUM_MOUSE_DRVS:
- /* Uh oh.. */
- packetsize = 0;
- break;
- }
- /* Special handling for the quite sensitive ELO controller */
- if (mouse_drv == MOUSE_ELO) {
- /* try to read the next packet */
- if(eloReadPosition(this, mouse_fd, &dx, &dy, &button, &realx, &realy)) {
- button = (button & 0x01) << 2;
- FB_vgamousecallback(button, relative, dx, dy);
- }
- return;
- }
- /* Read as many packets as possible */
- nread = read(mouse_fd, &mousebuf[start], BUFSIZ-start);
- if ( nread < 0 ) {
- return;
- }
- nread += start;
- #ifdef DEBUG_MOUSE
- fprintf(stderr, "Read %d bytes from mouse, start = %dn", nread, start);
- #endif
- for ( i=0; i<(nread-(packetsize-1)); i += packetsize ) {
- switch (mouse_drv) {
- case MOUSE_NONE:
- break;
- case MOUSE_MSC:
- /* MSC protocol has 0x80 in high byte */
- if ( (mousebuf[i] & 0xF8) != 0x80 ) {
- /* Go to next byte */
- i -= (packetsize-1);
- continue;
- }
- /* Get current mouse state */
- button = (~mousebuf[i]) & 0x07;
- dx = (signed char)(mousebuf[i+1]) +
- (signed char)(mousebuf[i+3]);
- dy = -((signed char)(mousebuf[i+2]) +
- (signed char)(mousebuf[i+4]));
- break;
- case MOUSE_PS2:
- /* PS/2 protocol has nothing in high byte */
- if ( (mousebuf[i] & 0xC0) != 0 ) {
- /* Go to next byte */
- i -= (packetsize-1);
- continue;
- }
- /* Get current mouse state */
- button = (mousebuf[i] & 0x04) >> 1 | /*Middle*/
- (mousebuf[i] & 0x02) >> 1 | /*Right*/
- (mousebuf[i] & 0x01) << 2; /*Left*/
- dx = (mousebuf[i] & 0x10) ?
- mousebuf[i+1] - 256 : mousebuf[i+1];
- dy = (mousebuf[i] & 0x20) ?
- -(mousebuf[i+2] - 256) : -mousebuf[i+2];
- break;
- case MOUSE_IMPS2:
- /* Get current mouse state */
- button = (mousebuf[i] & 0x04) >> 1 | /*Middle*/
- (mousebuf[i] & 0x02) >> 1 | /*Right*/
- (mousebuf[i] & 0x01) << 2 | /*Left*/
- (mousebuf[i] & 0x40) >> 3 | /* 4 */
- (mousebuf[i] & 0x80) >> 3; /* 5 */
- dx = (mousebuf[i] & 0x10) ?
- mousebuf[i+1] - 256 : mousebuf[i+1];
- dy = (mousebuf[i] & 0x20) ?
- -(mousebuf[i+2] - 256) : -mousebuf[i+2];
- switch (mousebuf[i+3]&0x0F) {
- case 0x0E: /* DX = +1 */
- case 0x02: /* DX = -1 */
- break;
- case 0x0F: /* DY = +1 (map button 4) */
- FB_vgamousecallback(button | (1<<3),
- 1, 0, 0);
- break;
- case 0x01: /* DY = -1 (map button 5) */
- FB_vgamousecallback(button | (1<<4),
- 1, 0, 0);
- break;
- }
- break;
- case MOUSE_MS:
- /* Microsoft protocol has 0x40 in high byte */
- if ( (mousebuf[i] & 0x40) != 0x40 ) {
- /* Go to next byte */
- i -= (packetsize-1);
- continue;
- }
- /* Get current mouse state */
- button = ((mousebuf[i] & 0x20) >> 3) |
- ((mousebuf[i] & 0x10) >> 4);
- dx = (signed char)(((mousebuf[i] & 0x03) << 6) |
- (mousebuf[i + 1] & 0x3F));
- dy = (signed char)(((mousebuf[i] & 0x0C) << 4) |
- (mousebuf[i + 2] & 0x3F));
- break;
- case MOUSE_BM:
- /* BusMouse protocol has 0xF8 in high byte */
- if ( (mousebuf[i] & 0xF8) != 0x80 ) {
- /* Go to next byte */
- i -= (packetsize-1);
- continue;
- }
- /* Get current mouse state */
- button = (~mousebuf[i]) & 0x07;
- dx = (signed char)mousebuf[i+1];
- dy = -(signed char)mousebuf[i+2];
- break;
- /*
- case MOUSE_ELO:
- if ( mousebuf[i] != ELO_START_BYTE ) {
- i -= (packetsize-1);
- continue;
- }
- if(!eloParsePacket(&(mousebuf[i]), &dx, &dy, &button)) {
- i -= (packetsize-1);
- continue;
- }
- button = (button & 0x01) << 2;
- eloConvertXY(this, &dx, &dy);
- break;
- */
- case MOUSE_ELO:
- case NUM_MOUSE_DRVS:
- /* Uh oh.. */
- dx = 0;
- dy = 0;
- break;
- }
- FB_vgamousecallback(button, relative, dx, dy);
- }
- if ( i < nread ) {
- memcpy(mousebuf, &mousebuf[i], (nread-i));
- start = (nread-i);
- } else {
- start = 0;
- }
- return;
- }
- /* Handle switching to another VC, returns when our VC is back.
- This isn't necessarily the best solution. For SDL 1.3 we need
- a way of notifying the application when we lose access to the
- video hardware and when we regain it.
- */
- static void switch_vt(_THIS, unsigned short which)
- {
- struct vt_stat vtstate;
- unsigned short current;
- SDL_Surface *screen;
- __u16 saved_pal[3*256];
- Uint32 screen_arealen;
- Uint8 *screen_contents;
- /* Figure out whether or not we're switching to a new console */
- if ( (ioctl(keyboard_fd, VT_GETSTATE, &vtstate) < 0) ||
- (which == vtstate.v_active) ) {
- return;
- }
- current = vtstate.v_active;
- /* Save the contents of the screen, and go to text mode */
- SDL_mutexP(hw_lock);
- wait_idle(this);
- screen = SDL_VideoSurface;
- screen_arealen = (screen->h*screen->pitch);
- screen_contents = (Uint8 *)malloc(screen_arealen);
- if ( screen_contents ) {
- memcpy(screen_contents, screen->pixels, screen_arealen);
- }
- FB_SavePaletteTo(this, 256, saved_pal);
- ioctl(keyboard_fd, KDSETMODE, KD_TEXT);
- /* New console, switch to it */
- if ( ioctl(keyboard_fd, VT_ACTIVATE, which) == 0 ) {
- /* Wait for our console to be activated again */
- ioctl(keyboard_fd, VT_WAITACTIVE, which);
- while ( ioctl(keyboard_fd, VT_WAITACTIVE, current) < 0 ) {
- if ( (errno != EINTR) && (errno != EAGAIN) ) {
- /* Unknown VT error - cancel this */
- break;
- }
- SDL_Delay(500);
- }
- }
- /* Restore graphics mode and the contents of the screen */
- ioctl(keyboard_fd, KDSETMODE, KD_GRAPHICS);
- FB_RestorePaletteFrom(this, 256, saved_pal);
- if ( screen_contents ) {
- memcpy(screen->pixels, screen_contents, screen_arealen);
- free(screen_contents);
- }
- SDL_mutexV(hw_lock);
- }
- static void handle_keyboard(_THIS)
- {
- unsigned char keybuf[BUFSIZ];
- int i, nread;
- int pressed;
- int scancode;
- SDL_keysym keysym;
- nread = read(keyboard_fd, keybuf, BUFSIZ);
- for ( i=0; i<nread; ++i ) {
- scancode = keybuf[i] & 0x7F;
- if ( keybuf[i] & 0x80 ) {
- pressed = SDL_RELEASED;
- } else {
- pressed = SDL_PRESSED;
- }
- TranslateKey(scancode, &keysym);
- /* Handle Alt-FN for vt switch */
- switch (keysym.sym) {
- case SDLK_F1:
- case SDLK_F2:
- case SDLK_F3:
- case SDLK_F4:
- case SDLK_F5:
- case SDLK_F6:
- case SDLK_F7:
- case SDLK_F8:
- case SDLK_F9:
- case SDLK_F10:
- case SDLK_F11:
- case SDLK_F12:
- if ( SDL_GetModState() & KMOD_ALT ) {
- if ( pressed ) {
- switch_vt(this, (keysym.sym-SDLK_F1)+1);
- }
- break;
- }
- /* Fall through to normal processing */
- default:
- posted += SDL_PrivateKeyboard(pressed, &keysym);
- break;
- }
- }
- }
- void FB_PumpEvents(_THIS)
- {
- fd_set fdset;
- int max_fd;
- static struct timeval zero;
- do {
- posted = 0;
- FD_ZERO(&fdset);
- max_fd = 0;
- if ( keyboard_fd >= 0 ) {
- FD_SET(keyboard_fd, &fdset);
- if ( max_fd < keyboard_fd ) {
- max_fd = keyboard_fd;
- }
- }
- if ( mouse_fd >= 0 ) {
- FD_SET(mouse_fd, &fdset);
- if ( max_fd < mouse_fd ) {
- max_fd = mouse_fd;
- }
- }
- if ( select(max_fd+1, &fdset, NULL, NULL, &zero) > 0 ) {
- if ( keyboard_fd >= 0 ) {
- if ( FD_ISSET(keyboard_fd, &fdset) ) {
- handle_keyboard(this);
- }
- }
- if ( mouse_fd >= 0 ) {
- if ( FD_ISSET(mouse_fd, &fdset) ) {
- handle_mouse(this);
- }
- }
- }
- } while ( posted );
- }
- void FB_InitOSKeymap(_THIS)
- {
- int i;
- /* Initialize the Linux key translation table */
- /* First get the ascii keys and others not well handled */
- for (i=0; i<SDL_TABLESIZE(keymap); ++i) {
- switch(i) {
- /* These aren't handled by the x86 kernel keymapping (?) */
- case SCANCODE_PRINTSCREEN:
- keymap[i] = SDLK_PRINT;
- break;
- case SCANCODE_BREAK:
- keymap[i] = SDLK_BREAK;
- break;
- case SCANCODE_BREAK_ALTERNATIVE:
- keymap[i] = SDLK_PAUSE;
- break;
- case SCANCODE_LEFTSHIFT:
- keymap[i] = SDLK_LSHIFT;
- break;
- case SCANCODE_RIGHTSHIFT:
- keymap[i] = SDLK_RSHIFT;
- break;
- case SCANCODE_LEFTCONTROL:
- keymap[i] = SDLK_LCTRL;
- break;
- case SCANCODE_RIGHTCONTROL:
- keymap[i] = SDLK_RCTRL;
- break;
- case SCANCODE_RIGHTWIN:
- keymap[i] = SDLK_RSUPER;
- break;
- case SCANCODE_LEFTWIN:
- keymap[i] = SDLK_LSUPER;
- break;
- case 127:
- keymap[i] = SDLK_MENU;
- break;
- /* this should take care of all standard ascii keys */
- default:
- keymap[i] = KVAL(vga_keymap[0][i]);
- break;
- }
- }
- for (i=0; i<SDL_TABLESIZE(keymap); ++i) {
- switch(keymap_temp[i]) {
- case K_F1: keymap[i] = SDLK_F1; break;
- case K_F2: keymap[i] = SDLK_F2; break;
- case K_F3: keymap[i] = SDLK_F3; break;
- case K_F4: keymap[i] = SDLK_F4; break;
- case K_F5: keymap[i] = SDLK_F5; break;
- case K_F6: keymap[i] = SDLK_F6; break;
- case K_F7: keymap[i] = SDLK_F7; break;
- case K_F8: keymap[i] = SDLK_F8; break;
- case K_F9: keymap[i] = SDLK_F9; break;
- case K_F10: keymap[i] = SDLK_F10; break;
- case K_F11: keymap[i] = SDLK_F11; break;
- case K_F12: keymap[i] = SDLK_F12; break;
- case K_DOWN: keymap[i] = SDLK_DOWN; break;
- case K_LEFT: keymap[i] = SDLK_LEFT; break;
- case K_RIGHT: keymap[i] = SDLK_RIGHT; break;
- case K_UP: keymap[i] = SDLK_UP; break;
- case K_P0: keymap[i] = SDLK_KP0; break;
- case K_P1: keymap[i] = SDLK_KP1; break;
- case K_P2: keymap[i] = SDLK_KP2; break;
- case K_P3: keymap[i] = SDLK_KP3; break;
- case K_P4: keymap[i] = SDLK_KP4; break;
- case K_P5: keymap[i] = SDLK_KP5; break;
- case K_P6: keymap[i] = SDLK_KP6; break;
- case K_P7: keymap[i] = SDLK_KP7; break;
- case K_P8: keymap[i] = SDLK_KP8; break;
- case K_P9: keymap[i] = SDLK_KP9; break;
- case K_PPLUS: keymap[i] = SDLK_KP_PLUS; break;
- case K_PMINUS: keymap[i] = SDLK_KP_MINUS; break;
- case K_PSTAR: keymap[i] = SDLK_KP_MULTIPLY; break;
- case K_PSLASH: keymap[i] = SDLK_KP_DIVIDE; break;
- case K_PENTER: keymap[i] = SDLK_KP_ENTER; break;
- case K_PDOT: keymap[i] = SDLK_KP_PERIOD; break;
- case K_SHIFT: if ( keymap[i] != SDLK_RSHIFT )
- keymap[i] = SDLK_LSHIFT;
- break;
- case K_SHIFTL: keymap[i] = SDLK_LSHIFT; break;
- case K_SHIFTR: keymap[i] = SDLK_RSHIFT; break;
- case K_CTRL: if ( keymap[i] != SDLK_RCTRL )
- keymap[i] = SDLK_LCTRL;
- break;
- case K_CTRLL: keymap[i] = SDLK_LCTRL; break;
- case K_CTRLR: keymap[i] = SDLK_RCTRL; break;
- case K_ALT: keymap[i] = SDLK_LALT; break;
- case K_ALTGR: keymap[i] = SDLK_RALT; break;
- case K_INSERT: keymap[i] = SDLK_INSERT; break;
- case K_REMOVE: keymap[i] = SDLK_DELETE; break;
- case K_PGUP: keymap[i] = SDLK_PAGEUP; break;
- case K_PGDN: keymap[i] = SDLK_PAGEDOWN; break;
- case K_FIND: keymap[i] = SDLK_HOME; break;
- case K_SELECT: keymap[i] = SDLK_END; break;
- case K_NUM: keymap[i] = SDLK_NUMLOCK; break;
- case K_CAPS: keymap[i] = SDLK_CAPSLOCK; break;
- case K_F13: keymap[i] = SDLK_PRINT; break;
- case K_HOLD: keymap[i] = SDLK_SCROLLOCK; break;
- case K_PAUSE: keymap[i] = SDLK_PAUSE; break;
- case 127: keymap[i] = SDLK_BACKSPACE; break;
- default: break;
- }
- }
- }
- static SDL_keysym *TranslateKey(int scancode, SDL_keysym *keysym)
- {
- /* Set the keysym information */
- keysym->scancode = scancode;
- keysym->sym = keymap[scancode];
- keysym->mod = KMOD_NONE;
- /* If UNICODE is on, get the UNICODE value for the key */
- keysym->unicode = 0;
- if ( SDL_TranslateUNICODE ) {
- int map;
- SDLMod modstate;
- modstate = SDL_GetModState();
- map = 0;
- if ( modstate & KMOD_SHIFT ) {
- map |= (1<<KG_SHIFT);
- }
- if ( modstate & KMOD_CTRL ) {
- map |= (1<<KG_CTRL);
- }
- if ( modstate & KMOD_ALT ) {
- map |= (1<<KG_ALT);
- }
- if ( modstate & KMOD_MODE ) {
- map |= (1<<KG_ALTGR);
- }
- if ( KTYP(vga_keymap[map][scancode]) == KT_LETTER ) {
- if ( modstate & KMOD_CAPS ) {
- map ^= (1<<KG_SHIFT);
- }
- }
- if ( KTYP(vga_keymap[map][scancode]) == KT_PAD ) {
- if ( modstate & KMOD_NUM ) {
- keysym->unicode=KVAL(vga_keymap[map][scancode]);
- }
- } else {
- keysym->unicode = KVAL(vga_keymap[map][scancode]);
- }
- }
- return(keysym);
- }