def _update_strokemap_with_percept_diff(self, before, after, tx, ty):
# get the pixel data to compare
data_before = before.get((tx, ty), tiledsurface.transparent_tile).rgba
data_after = after.get((tx, ty), tiledsurface.transparent_tile).rgba
# calculate pixel changes, and add to the stroke's tiled bitmap
differences = empty((N, N), 'uint8')
mypaintlib.tile_perceptual_change_strokemap(data_before, data_after,
differences)
self.strokemap[tx, ty] = zlib.compress(differences.tostring())
def _update_strokemap_with_percept_diff(self, before, after, tx, ty):
# get the pixel data to compare
data_before = before.get((tx, ty), tiledsurface.transparent_tile).rgba
data_after = after.get((tx, ty), tiledsurface.transparent_tile).rgba
# calculate pixel changes, and add to the stroke's tiled bitmap
differences = empty((N, N), 'uint8')
mypaintlib.tile_perceptual_change_strokemap(data_before, data_after,
differences)
self.strokemap[tx, ty] = zlib.compress(differences.tostring())
def new_from_diff(cls, before, after):
"""Initialize from a diff or two RGBA arrays."""
differences = numpy.empty((N, N), 'uint8')
mypaintlib.tile_perceptual_change_strokemap(
before,
after,
differences,
)
return cls.new_from_array(differences)
def new_from_diff(cls, before, after):
"""Initialize from a diff or two RGBA arrays."""
differences = np.empty((N, N), 'uint8')
mypaintlib.tile_perceptual_change_strokemap(
before,
after,
differences,
)
return cls.new_from_array(differences)
def work(tx=tx, ty=ty):
# get the pixel data to compare
a_data = a.get((tx, ty), tiledsurface.transparent_tile).rgba
b_data = b.get((tx, ty), tiledsurface.transparent_tile).rgba
data = empty((N, N), "uint8")
mypaintlib.tile_perceptual_change_strokemap(a_data, b_data, data)
data_compressed = zlib.compress(data.tostring())
self.strokemap[tx, ty] = data_compressed
def work(tx=tx, ty=ty):
# get the pixel data to compare
a_data = a.get((tx, ty), tiledsurface.transparent_tile).rgba
b_data = b.get((tx, ty), tiledsurface.transparent_tile).rgba
data = empty((N, N), 'uint8')
mypaintlib.tile_perceptual_change_strokemap(
a_data, b_data, data)
data_compressed = zlib.compress(data.tostring())
self.strokemap[tx, ty] = data_compressed