UGL之封闭图形的填充

#include <ugl/ugl.h>

void uglTest ()
    {
    #define WIDTH 32
    #define HIGHT 32
    UINT8 patternData[WIDTH*HIGHT/__SIZEOF_INT__] = 
        {
        0x00,0x0f,0xf0,0x00,
        0x00,0x7f,0xfe,0x00,
        0x01,0xff,0xff,0x80,
        0x03,0xff,0xff,0xc0,
        0x07,0xff,0xff,0xe0,
        0x0f,0xff,0xff,0xf0,
        0x1f,0xff,0xff,0xf8,
        0x3f,0xff,0xff,0xfc,
        0x3f,0x8f,0xf1,0xfc,
        0x7f,0x07,0xe0,0xfe,
        0x7f,0x07,0xe0,0xfe,
        0x7f,0x07,0xe0,0xfe,
        0xff,0x8f,0xf1,0xff,
        0xff,0xff,0xff,0xff,
        0xff,0xff,0xff,0xff,
        0xff,0xff,0xff,0xff,
        0xff,0xff,0xff,0xff,
        0xff,0xff,0xff,0xff,
        0xff,0xff,0xff,0xff,
        0xf9,0xff,0xff,0x9f,
        0x79,0xff,0xff,0x9e,
        0x78,0xff,0xff,0x1e,
        0x7c,0xff,0xff,0x3e,
        0x3c,0x7f,0xfe,0x3c,
        0x3e,0x1f,0xf8,0x7c,
        0x1f,0x03,0xe0,0xf8,
        0x0f,0xc0,0x03,0xf0,
        0x07,0xf8,0x1f,0xe0,
        0x03,0xff,0xff,0xc0,
        0x01,0xff,0xff,0x80,
        0x00,0x7f,0xfe,0x00,
        0x00,0x0f,0xf0,0x00 
        };
    UGL_REG_DATA *pRegData;
    UGL_GC_ID     gc;
    UGL_MDDB_ID   patternDdb;
    UGL_MDIB      patternDib = {WIDTH, HIGHT, WIDTH, patternData};

    uglDisplayOpen(0, 0, 0); 
    pRegData = uglRegistryFind (UGL_DISPLAY_TYPE, 0, 0, 0);
    gc = uglGcCreate((UGL_DEVICE_ID)pRegData->id);

    patternDdb = uglMonoBitmapCreate((UGL_DEVICE_ID)pRegData->id, &patternDib, 
                                      UGL_DIB_INIT_DATA, 0, UGL_NULL);
    uglFillPatternSet(gc, patternDdb);

    uglForegroundColorSet(gc, 0xff0000);
    uglBackgroundColorSet(gc, 0x00ff00);
    uglEllipse(gc, 10, 10, 200, 300, 0, 0, 0, 0);
    uglRectangle(gc, 250, 10, 350, 300);
    return;
    }