bounce.c

编译后直接运行的ＭＰ３播放器全部Ｃ语言源代码 一个包含FAT文件系统、系统引导 Boot、FLASH Driver等内容的

    rb->lcd_drawline(LCD_WIDTH/2, LCD_HEIGHT/2, xminute[pos], yminute[pos]);

    hour = hour*5 + minute/12;
    pos = 90-hour;
    if(pos >= 60)
        pos -= 60;

    rb->lcd_drawline(LCD_WIDTH/2, LCD_HEIGHT/2, xhour[pos], yhour[pos]);

    /* draw a circle */
    for(i=0; i < 60; i+=3) {
        rb->lcd_drawline( xminute[i],
                      yminute[i],
                      xminute[(i+1)%60],
                      yminute[(i+1)%60]);
    }
}

static int scrollit(void)
{
    int b;
    unsigned int y=100;
    int x=LCD_WIDTH;
    unsigned int yy,xx;
    unsigned int i;
    int textpos=0;

    char* rock="Rockbox! Pure pleasure. Pure fun. Oooh. What fun! ;-) ";
    unsigned int rocklen = rb->strlen(rock);
    int letter;

    rb->lcd_clear_display();
    while(1)
    {
        b = rb->button_get_w_tmo(HZ/10);
        if ( b == (BUTTON_OFF|BUTTON_REL) )
            return 0;
        else if ( b == (BUTTON_ON|BUTTON_REL) )
            return 1;

        rb->lcd_clear_display();

        for(i=0, yy=y, xx=x; i< LETTERS_ON_SCREEN; i++) {
            letter = rock[(i+textpos) % rocklen ];

            rb->lcd_bitmap((char *)char_gen_12x16[letter-0x20],
                       xx, table[yy&63],
                       11, 16, false);
            yy += YADD;
            xx+= LCD_WIDTH/LETTERS_ON_SCREEN;
        }
        addclock();
        rb->lcd_update();

        x-= XSPEED;
        
        if(x < 0) {
            x += LCD_WIDTH/LETTERS_ON_SCREEN;
            y += YADD;
            textpos++;
        }

        y+=YSPEED;

    }
}

static int loopit(void)
{
    int b;
    unsigned int y=100;
    unsigned int x=100;
    unsigned int yy,xx;
    unsigned int i;
    unsigned int ysanke=0;
    unsigned int xsanke=0;

    char* rock="ROCKbox";
    unsigned int rocklen = rb->strlen(rock);

    int show=0;
    int timeout=0;
    char buffer[30];

    rb->lcd_clear_display();
    while(1)
    {
        b = rb->button_get_w_tmo(HZ/10);
        if ( b == (BUTTON_OFF|BUTTON_REL) )
            return 0;
        
        if ( b == SYS_USB_CONNECTED) {
            rb->usb_screen();
            return 0;
        }

        if ( b == (BUTTON_ON|BUTTON_REL) )
            return 1;
        else if(b != BUTTON_NONE)
            timeout=20;

        y+= speed[ysanke&15] + values[NUM_YADD].num;
        x+= speed[xsanke&15] + values[NUM_XADD].num;

        rb->lcd_clear_display();
        addclock();
        if(timeout) {
            switch(b) {
                case BUTTON_LEFT:
                  values[show].num--;
                  break;
                case BUTTON_RIGHT:
                  values[show].num++;
                  break;
                case BUTTON_UP:
                  if(++show == NUM_LAST)
                      show=0;
                  break;
                case BUTTON_DOWN:
                  if(--show < 0)
                      show=NUM_LAST-1;
                  break;
            }
            rb->snprintf(buffer, 30, "%s: %d",
                         values[show].what, values[show].num);
            rb->lcd_putsxy(0, 56, buffer);
            timeout--;
        }
        for(i=0, yy=y, xx=x;
            i<rocklen;
            i++, yy+=values[NUM_YDIST].num, xx+=values[NUM_XDIST].num)
          rb->lcd_bitmap((char *)char_gen_12x16[rock[i]-0x20],
                     xtable[xx%71], table[yy&63],
                     11, 16, false);
        rb->lcd_update();

        ysanke+= values[NUM_YSANKE].num;
        xsanke+= values[NUM_XSANKE].num;
    }
}


enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
{
    int w, h;
    char *off = "[Off] to stop";
    int len;

    TEST_PLUGIN_API(api);
    (void)(parameter);
    rb = api;

    len = rb->strlen(SS_TITLE);
    rb->lcd_setfont(FONT_SYSFIXED);
    rb->lcd_getstringsize(SS_TITLE,&w, &h);

    /* Get horizontel centering for text */
    len *= w;
    if (len%2 != 0)
        len = ((len+1)/2)+(w/2);
    else
        len /= 2;
    
    if (h%2 != 0)
        h = (h/2)+1;
    else
        h /= 2;
    
    rb->lcd_clear_display();
    rb->lcd_putsxy(LCD_WIDTH/2-len, (LCD_HEIGHT/2)-h, SS_TITLE);
    
    len = 1;
    rb->lcd_getstringsize(off, &w, &h);
    
    /* Get horizontel centering for text */
    len *= w;
    if (len%2 != 0)
        len = ((len+1)/2)+(w/2);
    else
        len /= 2;
    
    if (h%2 != 0)
        h = (h/2)+1;
    else
        h /= 2;
    
    rb->lcd_putsxy(LCD_WIDTH/2-len, LCD_HEIGHT-(2*h), off);
    rb->lcd_update();
    rb->sleep(HZ);
    
    do {
        h= loopit();
        if(h)
            h = scrollit();
    } while(h);
    
    rb->lcd_setfont(FONT_UI);
    
    return false;
}

#endif