static int post_enter_graphics (void) { vga_setmousesupport (1); mouse_init("/dev/mouse", vga_getmousetype (), 10); if (keyboard_init() != 0) { leave_graphics_mode (); write_log ("Are you sure you have a keyboard??\n"); return 0; } keyboard_seteventhandler (my_kbd_handlerx); keyboard_translatekeys (DONT_CATCH_CTRLC); mouse_setxrange (-1000, 1000); mouse_setyrange (-1000, 1000); mouse_setposition (0, 0); return 1; }
void main(void) { struct timeval timeout; fd_set inputs; char bitmap[16 * 16 * 4]; /* big enough for 10x10 bitmap in any mode */ int vgamode, color, pipefd[2], x, y, button, event, cursorsize = 5; char loop = 1, drawcursor = 1; #ifdef USE_RAWKEYBOARD char space_pressed = 0; #endif puts("This is a demo showing the abilities of the new vga_waitevent() function\n" "If something goes wrong it might hang your machine. Thus hit <ctrl>-C now\n" "to bailout if in doubt.\n" "Use mouse to move cursor. 1-9,0 to set the cursor size. Space to change the\n" "cursor color. Left button to draw. Right button or 'Q' to bailout.\n" "The cursor goes on/off every half second by usage of a timeout passed to\n" "vga_waitevent. Every 5 secs a string from a child process (the time) arrives\n" "asynchronously and is displayed by the frontend."); #ifdef USE_RAWKEYBOARD puts("\nBEWARE! This has been compiled to use the raw keyboard. A crash might\n" "render the console unusable. (but shouldn't)."); #endif fputs("\nHit <Enter> if brave enough, else ^C to bailout: ", stdout); fflush(stdout); getchar(); fflush(stdin); /* clear I/O buffer */ pipe(pipefd); if (fork() == 0) { /* fork off b4 touching graphix to avoid side effects */ close(pipefd[0]); /* Important: close reading side, else it remains */ /* opened by child when parent exits and we don't get */ /* a SIGPIPE! */ child(pipefd[1]); } vga_init(); vgamode = vga_getdefaultmode(); if (vgamode == -1) vgamode = G320x200x256; if (!vga_hasmode(vgamode)) { printf("Mode not available.\n"); exit(-1); } /* Enable automatic mouse setup at mode set. */ vga_setmousesupport(1); vga_setmode(vgamode); /* Disable wrapping (default). */ /* mouse_setwrap(MOUSE_NOWRAP); */ gl_setcontextvga(vgamode); gl_enableclipping(); /* There might be some scrap data in the serial buffer from the mouse. It will make vga_waitevent block because it thinks the mouse wants to send data but then no mouse packet arrives. */ color = newcolor(); x = 0; y = 0; gl_setwritemode(WRITEMODE_OVERWRITE | FONT_COMPRESSED); gl_setfont(8, 8, gl_font8x8); gl_setfontcolors(0, newcolor()); #ifdef USE_RAWKEYBOARD if (keyboard_init()) { printf("Could not initialize keyboard.\n"); exit(1); } #endif while (loop) { gl_getbox(x, y, 10, 10, bitmap); if (drawcursor) { gl_hline(x, y, x + cursorsize, color); gl_hline(x, y + cursorsize, x + cursorsize, color); gl_line(x, y, x, y + cursorsize, color); gl_line(x + cursorsize, y, x + cursorsize, y + cursorsize, color); } FD_ZERO(&inputs); FD_SET(pipefd[0], &inputs); timeout.tv_sec = 0; timeout.tv_usec = 500000; /* 0.5 second time out */ event = vga_waitevent(VGA_MOUSEEVENT | VGA_KEYEVENT, &inputs, NULL, NULL, &timeout); gl_putbox(x, y, 10, 10, bitmap); if (timeout.tv_sec || timeout.tv_usec) { /* No timeout. An actual event occured. Reset to visible cursor. Note: This is actually a bug as the cursor will get visible on time updates. However, it's better this way for demo/test purposes. */ drawcursor = 1; } else { drawcursor ^= 1; } if (FD_ISSET(pipefd[0], &inputs)) process_input(pipefd[0]); if (event & VGA_MOUSEEVENT) { x = mouse_getx(); y = mouse_gety(); button = mouse_getbutton(); if (button & MOUSE_LEFTBUTTON) gl_fillbox(x, y, cursorsize + 1, cursorsize + 1, color); if (button & MOUSE_RIGHTBUTTON) loop = 0; } if (event & VGA_KEYEVENT) { #ifdef USE_RAWKEYBOARD if (keyboard_keypressed(SCANCODE_1)) cursorsize = 0; if (keyboard_keypressed(SCANCODE_2)) cursorsize = 1; if (keyboard_keypressed(SCANCODE_3)) cursorsize = 2; if (keyboard_keypressed(SCANCODE_4)) cursorsize = 3; if (keyboard_keypressed(SCANCODE_5)) cursorsize = 4; if (keyboard_keypressed(SCANCODE_6)) cursorsize = 5; if (keyboard_keypressed(SCANCODE_7)) cursorsize = 6; if (keyboard_keypressed(SCANCODE_8)) cursorsize = 7; if (keyboard_keypressed(SCANCODE_9)) cursorsize = 8; if (keyboard_keypressed(SCANCODE_0)) cursorsize = 9; if (keyboard_keypressed(SCANCODE_Q)) loop = 0; if (keyboard_keypressed(SCANCODE_SPACE)) { if (!space_pressed) { color = newcolor(); space_pressed = 1; } } else { space_pressed = 0; } #else switch (vga_getch()) { case '1': cursorsize = 0; break; case '2': cursorsize = 1; break; case '3': cursorsize = 2; break; case '4': cursorsize = 3; break; case '5': cursorsize = 4; break; case '6': cursorsize = 5; break; case '7': cursorsize = 6; break; case '8': cursorsize = 7; break; case '9': cursorsize = 8; break; case '0': cursorsize = 9; break; case ' ': color = newcolor(); break; case 'q': case 'Q': loop = 0; break; default: ping(); break; } #endif } } #ifdef USE_RAWKEYBOARD keyboard_close(); /* Don't forget this! */ #endif vga_setmode(TEXT); exit(0); }
int SVGA_VideoInit(_THIS, SDL_PixelFormat *vformat) { int keyboard; int i, j; int mode, total_modes; /* Initialize all variables that we clean on shutdown */ for ( i=0; i<NUM_MODELISTS; ++i ) { SDL_nummodes[i] = 0; SDL_modelist[i] = NULL; SDL_vgamode[i] = NULL; } /* Initialize the library */ vga_disabledriverreport(); if ( vga_init() < 0 ) { SDL_SetError("Unable to initialize SVGAlib"); return(-1); } vga_setmode(TEXT); /* Enable mouse and keyboard support */ vga_setmousesupport(1); keyboard = keyboard_init_return_fd(); if ( keyboard < 0 ) { SDL_SetError("Unable to initialize keyboard"); return(-1); } if ( SVGA_initkeymaps(keyboard) < 0 ) { return(-1); } keyboard_seteventhandler(SVGA_keyboardcallback); /* Determine the screen depth (use default 8-bit depth) */ vformat->BitsPerPixel = 8; /* Enumerate the available fullscreen modes */ total_modes = 0; for ( mode=vga_lastmodenumber(); mode; --mode ) { if ( vga_hasmode(mode) ) { if ( SVGA_AddMode(this, mode, 0, 0) ) { ++total_modes; } } } if ( SVGA_AddMode(this, G320x200x256, 0, 1) ) ++total_modes; if ( total_modes == 0 ) { SDL_SetError("No linear video modes available"); return(-1); } for ( i=0; i<NUM_MODELISTS; ++i ) { SDL_vgamode[i] = (int *)malloc(SDL_nummodes[i]*sizeof(int)); if ( SDL_vgamode[i] == NULL ) { SDL_OutOfMemory(); return(-1); } SDL_modelist[i] = (SDL_Rect **) malloc((SDL_nummodes[i]+1)*sizeof(SDL_Rect *)); if ( SDL_modelist[i] == NULL ) { SDL_OutOfMemory(); return(-1); } for ( j=0; j<SDL_nummodes[i]; ++j ) { SDL_modelist[i][j]=(SDL_Rect *)malloc(sizeof(SDL_Rect)); if ( SDL_modelist[i][j] == NULL ) { SDL_OutOfMemory(); return(-1); } memset(SDL_modelist[i][j], 0, sizeof(SDL_Rect)); } SDL_modelist[i][j] = NULL; } for ( mode=vga_lastmodenumber(); mode; --mode ) { if ( vga_hasmode(mode) ) { SVGA_AddMode(this, mode, 1, 0); } } SVGA_AddMode(this, G320x200x256, 1, 1); /* Free extra (duplicated) modes */ for ( i=0; i<NUM_MODELISTS; ++i ) { j = 0; while ( SDL_modelist[i][j] && SDL_modelist[i][j]->w ) { j++; } while ( SDL_modelist[i][j] ) { free(SDL_modelist[i][j]); SDL_modelist[i][j] = NULL; j++; } } /* Fill in our hardware acceleration capabilities */ SVGA_UpdateVideoInfo(this); /* We're done! */ return(0); }