void initscreen(void) { int vgamode; vga_init(); vgamode = G640x480x16; if (!vga_hasmode(vgamode)) { printf("Mode not available.\n"); exit(-1); } vga_setmode(vgamode); /* Create virtual screen. */ gl_setcontextvgavirtual(vgamode); backscreen = gl_allocatecontext(); gl_getcontext(backscreen); /* Physical screen context. */ vga_setmode(vgamode); gl_setcontextvga(vgamode); physicalscreen = gl_allocatecontext(); gl_getcontext(physicalscreen); gl_setcontext(backscreen); /*drawgraypalette(); */ gl_clearscreen(0); // gl_setcontextvga(vgamode); gl_enableclipping(); gl_setclippingwindow(0, 0, 639, 479); gl_setwritemode(WRITEMODE_OVERWRITE | FONT_COMPRESSED); gl_setfont(8, 8, gl_font8x8); gl_setfontcolors(0, 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); }
void graphicsinit(char *svgamode) //initialization of graphics, mode according to X_LOPIF { const short cur[32] = { 0x9FFF, 0x0FFF, 0x07FF, 0x83FF, 0xC1FF, 0xE0FF, 0xF067, 0xF003, 0xF001, 0xF000, 0xF800, 0xF800, 0xF800, 0xFC00, 0xFC00, 0xFC00, 0x0000, 0x6000, 0x7000, 0x3800, 0x1C00, 0x0E00, 0x0700, 0x0018, 0x07EC, 0x07EE, 0x001E, 0x03EE, 0x03EE, 0x001E, 0x00EC, 0x0002 }; xg_256=MM_Hic; //set Hicolor flag... initpalette(); x_settextjusty(0,2); // always write text from upper left corner #ifdef GGI // printf("Initializing GGI visual target.\n"); ggiVis = ggiOpen (NULL); ggiGetMode (ggiVis, &origMode); ggiSetSimpleMode (ggiVis, 800, 600, 1, GT_16BIT); SVGAx=799; SVGAy=599; ggiAddFlags(ggiVis,GGIFLAG_ASYNC); #else strupr(svgamode); // printf("Console switched to graphics mode.\n"); if(strstr(svgamode,".I")) { vga_setmode(G640x480x64K); gl_setcontextvga(G640x480x64K); SVGAx=639; SVGAy=479; } else if(strstr(svgamode,".K")) { vga_setmode(G1024x768x64K); gl_setcontextvga(G1024x768x64K); SVGAx=1023; SVGAy=767; } else if(strstr(svgamode,".L")) { vga_setmode(G1280x1024x64K); gl_setcontextvga(G1280x1024x64K); SVGAx=1279; SVGAy=1023; } if(strstr(svgamode,".M")) { vga_setmode(G1600x1200x64K); gl_setcontextvga(G1600x1200x64K); SVGAx=1599; SVGAy=1199; } { vga_setmode(G800x600x64K); gl_setcontextvga(G800x600x64K); SVGAx=799; SVGAy=599; } vga_runinbackground(1); vga_oktowrite(); gl_setwritemode(FONT_COMPRESSED|WRITEMODE_MASKED); gl_setfontcolors(0,vga_white()); //gl_setfont(8,8,gl_font8x8); gl_setrgbpalette(); gl_enableclipping(); #endif x_defcurs( (short *)cur, (short *)&cur[16], 15); //mouse kursor }