Beispiel #1
0
/****************************************************************************
REMARKS:
Load the SNAP driver and intialise it.
****************************************************************************/
static GA_devCtx *LoadDriver(
    int deviceIndex)
{
    GA_devCtx *dc;

    /* Save the state of the console */
    hwndConsole = PM_openConsole(0,0,640,480,8,true);
    if ((stateBuf = malloc(PM_getConsoleStateSize())) == NULL)
        PM_fatalError("Out of memory!");
    PM_saveConsoleState(stateBuf,hwndConsole);

    /* Register our fatal error cleanup handler */
    PM_setFatalErrorCleanup(Cleanup);

    /* Load the driver */
    if ((dc = GA_loadDriver(deviceIndex,false)) == NULL)
        PM_fatalError(GA_errorMsg(GA_status()));
    init.dwSize = sizeof(init);
    if (!GA_queryFunctions(dc,GA_GET_INITFUNCS,&init))
        PM_fatalError("Unable to get device driver functions!");

    /* Cleanup. We do this here because we know that we will not
     * be setting any graphics modes after loading the driver,
     * so we can properly restore the console state and make calls
     * to non-destructive functions in the driver before we unload
     * it.
     */
    Cleanup();
    return dc;
}
Beispiel #2
0
/****************************************************************************
REMARKS:
Main routine. Expects the x & y resolution of the desired video mode
to be passed on the command line. Will print out a list of available
video modes if no command line is present.
****************************************************************************/
int main(
    int argc,
    char *argv[])
{
    /* Check to see if we are running in a window */
    if (PM_runningInAWindow()) {
        printf("This program cannot run in a window. Please switch to a fullscreen mode.\n");
        return -1;
        }

    /* Save the state of the console */
    hwndConsole = PM_openConsole(0,0,640,480,8,true);
    if ((stateBuf = malloc(PM_getConsoleStateSize())) == NULL)
        PM_fatalError("Out of memory!");
    PM_saveConsoleState(stateBuf,hwndConsole);

    /* Register our fatal error cleanup handler */
    PM_setFatalErrorCleanup(FatalErrorCleanup);

    /* Register the ISV license file if desired */
#ifdef  ISV_LICENSE
    GA_registerLicense(OemLicense,false);
#endif

    /* Load the device driver for this device */
    if ((dc = GA_loadDriver(0,false)) == NULL)
        PM_fatalError(GA_errorMsg(GA_status()));
    init.dwSize = sizeof(init);
    if (!GA_queryFunctions(dc,GA_GET_INITFUNCS,&init))
        PM_fatalError("Unable to get device driver functions!");
    driver.dwSize = sizeof(driver);
    if (!GA_queryFunctions(dc,GA_GET_DRIVERFUNCS,&driver))
        PM_fatalError("Unable to get device driver functions!");

    /* Display available modes for invalid command line */
    if (argc != 4) {
        /* Restore the console */
        PM_restoreConsoleState(stateBuf,hwndConsole);
        PM_closeConsole(hwndConsole);
        AvailableModes();
        GA_unloadDriver(dc);
        return 0;
        }

    /* Get requested resolution, start graphics and draw pattern */
    xRes = atoi(argv[1]);
    yRes = atoi(argv[2]);
    bpp = atoi(argv[3]);
    if ((oldMode = InitGraphics(xRes,yRes,bpp)) != -1) {
        DrawMoire();
        PM_getch();

        virtualX = virtualY = bytesPerLine = -1;
        init.SetVideoMode(oldMode,&virtualX,&virtualY,&bytesPerLine,&maxMem,0,NULL);
        }

    /* Restore the console */
    ExitSoftwareRasterizer();
    PM_restoreConsoleState(stateBuf,hwndConsole);
    PM_closeConsole(hwndConsole);

    /* Unload the device driver */
    GA_unloadDriver(dc);

    if (oldMode == -1)
        printf("Unable to find specified graphics mode, or error starting mode.\n");
    return 0;
}