def hflip(self):
pitch = self._surf._pitch
pixels = ctypes.cast(self._surf._pixels, ctypes.c_void_p).value
h = self._surf._h
tmp_ba = bytearray(pitch*h)
tmp = bar2voidp(tmp_ba).value
sdlsurface.lock_surface(self._surf)
ctypes.memmove(tmp, pixels, pitch*h)
for y in range(self._surf._h):
src = tmp + pitch * ( h - y - 1)
dst = pixels + pitch * y
ctypes.memmove(dst, src, pitch)
sdlsurface.unlock_surface(self._surf)
def test_lock_unlock_MUSTLOCK_surface(self):
colormods = ((0, 0, 0),
(32, 64, 128),
(10, 20, 30),
(1, 2, 4),
(255, 255, 255),
(128, 128, 128),
(127, 127, 127),
)
for fmt in pixels.ALL_PIXELFORMATS:
if pixels.SDL_ISPIXELFORMAT_FOURCC(fmt):
continue
bpp, rmask, gmask, bmask, amask = \
pixels.pixelformat_enum_to_masks(fmt)
sf = surface.create_rgb_surface(10, 10, bpp, rmask, gmask, bmask,
amask)
# TODO: locking seems to be only necessary for RLE surfaces...
if surface.SDL_MUSTLOCK(sf):
self.assertFalse(sf.locked)
surface.lock_surface(sf)
self.assertTrue(sf.locked)
surface.lock_surface(sf)
self.assertTrue(sf.locked)
surface.lock_surface(sf)
self.assertTrue(sf.locked)
surface.unlock_surface(sf)
self.assertTrue(sf.locked)
surface.unlock_surface(sf)
self.assertTrue(sf.locked)
surface.unlock_surface(sf)
self.assertFalse(sf.locked)
surface.free_surface(sf)
def __del__(self):
if self._surface is not None:
if sdlsurface.SDL_MUSTLOCK(self._surface):
sdlsurface.unlock_surface(self._surface)
