scrnsaver.c

ucos移植到arm_s3c2410的全套代码

    t->size = t->millis * t->speed;

    if (t->size > max_size) {
        /* remove texture */
        **prev_ptr = t->succ;
        free(t);
        return;
    }

    *prev_ptr = &t->succ;

    render_texture(screen_width, screen_height, t);
}

static void update_all_textures(int millis)
{
    Texture *cur;
    Texture **prev_ptr;

    cur = texture_list;
    prev_ptr = (Texture **) &texture_list;

    while (cur != NULL) {
         update_texture(cur, &prev_ptr, millis);
         cur = *prev_ptr;
   }
}

static struct timeval cur_time, prev_time;
static int gen_millis;
static void InitFlyingGUI (void)
{
    /* initialize */
    srand(time(NULL));

    banner_size(&banner_width, &banner_height);

    banner_diag = sqrt(banner_width * banner_width +
                              banner_height * banner_height);

    screen_width  = DEFAULT_WIDTH;
    screen_height = DEFAULT_HEIGHT;

    gen_time = DEFAULT_GENTIME;

    speed        = -1;
    max_size     = -1;
    cluster_size = -1;

    init_textures();

    if (speed < 0) {
        speed = DEFAULT_SPEED;
    }

    if (max_size < 0) {
        max_size = DEFAULT_MAXSIZE;
    }

    max_size = (max_size << 16) / 100;

    if (cluster_size < 0) {
        cluster_size = DEFAULT_CLUSTERSIZE;
    }
    
    setup_palette();

    screen_diag = sqrt(screen_width  * screen_width +
               screen_height * screen_height);

    image_size = screen_width * screen_height * 1;

    image_buf = malloc(image_size);

    gettimeofday (&prev_time, NULL);

    gen_millis=0;
}

#define CMPOPT(x,s,l,n)  (((strcmp(x,s)==0) || \
               (strcmp(x,l)==0)) && ((i+n) < argc))

static void OnPaint (HDC hdc)
{
    int x, y;
    int millis;

    x = screen_width/2;
    y = screen_width/2;

    /* determine time lapse */

    gettimeofday (&cur_time, NULL);

    millis = (cur_time.tv_sec  - prev_time.tv_sec)  * 1000
                       + (cur_time.tv_usec - prev_time.tv_usec) / 1000;

    prev_time = cur_time;

    if (use_putbox) {
        memset(image_buf, lookup[0], image_size);
    }
    else {
        memset(image_buf, 0,         image_size);
    }

    update_all_textures(millis);

    update_frame (hdc);

    for (gen_millis += millis; gen_millis >  gen_time;
                     gen_millis -= gen_time) {

        int disp_x = screen_width  * cluster_size / 200;
        int disp_y = screen_height * cluster_size / 141;

        x += random_in_range(-disp_x, +disp_x);
        y += random_in_range(-disp_y, +disp_y);

        if (x < 0) {
                x += screen_width;
        }
        if (y < 0) {
                y += screen_height;
        }
        if (x >= screen_width) {
                x -= screen_width;
        }
        if (y >= screen_height) {
                y -= screen_height;
        }

        add_texture(x, y, random_in_range(0, 255));
    }

}

static void TermFlyingGUI (void)
{
   free_textures();
}

int FlyingGUIWinProc (HWND hWnd, int message, WPARAM wParam, LPARAM lParam)
{
    HDC hdc;

    switch (message) {
        case MSG_CREATE:
            InitFlyingGUI ();
#ifdef _TIMER_UNIT_10MS
            SetTimer (hWnd, 100, 10);
#else
            SetTimer (hWnd, 100, 100);
#endif
        break;

        case MSG_TIMER:
            if (wParam == 100)
                InvalidateRect (hWnd, NULL, FALSE);
        break;

        case MSG_PAINT:
            hdc = BeginPaint (hWnd);
            OnPaint (hdc);
            EndPaint (hWnd, hdc);
        return 0;

        case MSG_CLOSE:
            KillTimer (hWnd, 100);
            TermFlyingGUI ();
            DestroyMainWindow (hWnd);
            PostQuitMessage (hWnd);
        return 0;
    }

    return DefaultMainWinProc(hWnd, message, wParam, lParam);
}

static void InitCreateInfo (PMAINWINCREATE pCreateInfo)
{
    pCreateInfo->dwStyle = WS_VISIBLE;
    pCreateInfo->dwExStyle = 0;
    pCreateInfo->spCaption = "Flying GUI" ;
    pCreateInfo->hMenu = 0;
    pCreateInfo->hCursor = 0;
    pCreateInfo->hIcon = 0;
    pCreateInfo->MainWindowProc = FlyingGUIWinProc;
    pCreateInfo->lx = 0; 
    pCreateInfo->ty = 0; 
    pCreateInfo->rx = pCreateInfo->lx + DEFAULT_WIDTH;
    pCreateInfo->by = pCreateInfo->ty + DEFAULT_HEIGHT;
    pCreateInfo->iBkColor = COLOR_black; 
    pCreateInfo->dwAddData = 0;
    pCreateInfo->hHosting = HWND_DESKTOP;
}

int MiniGUIMain (int args, const char* arg[])
{
    MSG Msg;
    MAINWINCREATE CreateInfo;
    HWND hMainWnd;

#ifdef _LITE_VERSION
    SetDesktopRect(0, 0, 1024, 768);
#endif

    InitCreateInfo (&CreateInfo);

    hMainWnd = CreateMainWindow (&CreateInfo);
    if (hMainWnd == HWND_INVALID)
        return -1;

    while (GetMessage (&Msg, hMainWnd)) {
        DispatchMessage (&Msg);
    }

    MainWindowThreadCleanup (hMainWnd);
    return 0;
}

#ifndef _LITE_VERSION
#include <minigui/dti.c>
#endif

/* Image of GUI */

static char *banner[46] = {

"..................###########..................................................................................",
"..............###################...##.....#################..............################..###################",
"............########.......###########........###########....................###########........###########....",
"..........#######.............########.........#########......................#########..........#########.....",
".........######................#######..........#######........................#######............#######......",
"........######...................#####..........#######........................#######............#######......",
".......######.....................#####.........#######........................#######............#######......",
"......######......................#####.........#######........................#######............#######......",
".....#######.......................####.........#######........................#######............#######......",
"....#######.........................###.........#######........................#######............#######......",
"....######..........................###.........#######........................#######............#######......",
"...#######..........................###.........#######........................#######............#######......",
"...#######...........................##.........#######........................#######............#######......",
"..#######.......................................#######........................#######............#######......",
"..#######.......................................#######........................#######............#######......",
".########.......................................#######........................#######............#######......",
".#######........................................#######........................#######............#######......",
".#######........................................#######........................#######............#######......",
".#######........................................#######........................#######............#######......",
"########........................................#######........................#######............#######......",
"########........................................#######........................#######............#######......",
"########..................###################...#######........................#######............#######......",
"########......................###########.......#######........................#######............#######......",
"########.......................#########........#######........................#######............#######......",
"########........................########........#######........................#######............#######......",
"########........................#######.........#######........................#######............#######......",
"########........................#######.........#######........................#######............#######......",
"#########.......................#######.........#######........................#######............#######......",
".########.......................#######.........#######........................#######............#######......",
".########.......................#######.........#######........................#######............#######......",
".########.......................#######.........#######........................#######............#######......",
"..########......................#######.........#######........................#######............#######......",
"..########......................#######.........#######........................#######............#######......",
"..#########.....................#######.........#######........................#######............#######......",
"...########.....................#######..........#######......................#######.............#######......",
"....########....................#######..........#######......................#######.............#######......",
"....########....................#######...........#######....................#######..............#######......",
".....########...................#######...........#######....................#######..............#######......",
"......########..................#######............#######..................#######...............#######......",
".......########.................#######.............#######................#######................#######......",
"........########................#######..............#######..............#######.................#######......",
"..........########............#########...............#######............#######.................#########.....",
"............#########......##########..................########.........#######.................###########....",
"..............####################........................##################................###################",
"..................############...............................############......................................",

NULL
};