Применение Windows API

 BitmapCanvas bmpCanvas(canvas, bmp);
 RECT rect = { 0, 0, _cx, _cy };
 bmpCanvas.WhiteWash(rect);
 // Do the off-line drawing
 Blitter bltBkg(_background);
 bltBkg.BlitTo(bmpCanvas);
 int xRange = (_widthBkg - _widthSprite) / 2;
 int yRange = (_heightBkg - _heightSprite) / 2;
 int x = xRange + static_cast<int>(xRange * sin(speed * _tick));
 int y = yRange + static_cast<int>(yRange * cos(4 * speed * _tick));
 Blitter bltMask(_mask);
 bltMask.SetMode(SRCPAINT);
 bltMask.SetDest(x, y);
 bltMask.BlitTo(bmpCanvas);
 Blitter bltSprite(_sprite);
 bltSprite.SetMode(SRCAND);
 bltSprite.SetDest(x, y);
 bltSprite.BlitTo(bmpCanvas);
 // update the buffer
 _bitmapBuf = bmp;
}

For completeness, here's the definition of bitmap canvas. You draw directly on this canvas using standard canvas methods, like Line, Text, SetPixel, etc... Here we only blit bitmaps into it.

class BitmapCanvas: public MemCanvas {
public:
 BitmapCanvas(HDC hdc, HBITMAP hBitmap) : MemCanvas(hdc) {
 // convert bitmap to format compatible with canvas
 _hOldBitmap = reinterpret_cast(::SelectObject(_hdc, hBitmap));
 }
 ~BitmapCanvas {
 ::SelectObject(_hdc, _hOldBitmap);
 }
private:
 HBITMAP _hOldBitmap;
};

class MemCanvas: public Canvas {
public:
 MemCanvas(HDC hdc) : Canvas(::CreateCompatibleDC(hdc)) {}
 ~MemCanvas {
 ::DeleteDC(_hdc);
 }
};

Now, if you want more speed, read about DirectDraw.