def test_surface_to_array_3d(self):
try:
from numpy import empty, dtype
except ImportError:
return
palette = self.test_palette
dst_dims = self.surf_size + (3, )
destinations = [empty(dst_dims, t) for t in self.dst_types]
if (pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN):
swapped_dst = empty(dst_dims, dtype('>u4'))
else:
swapped_dst = empty(dst_dims, dtype('<u4'))
for surf in self.sources:
src_bitsize = surf.get_bitsize()
for dst in destinations:
dst[...] = 0
self.assertFalse(surf.get_locked())
surface_to_array(dst, surf)
self.assertFalse(surf.get_locked())
for posn, i in self.test_points:
r_surf, g_surf, b_surf, a_surf = surf.get_at(posn)
r_arr, g_arr, b_arr = dst[posn]
self.assertEqual(
r_arr, r_surf, "%i != %i, color: red, flags: %i"
", bpp: %i, posn: %s" %
(r_arr, r_surf, surf.get_flags(), surf.get_bitsize(),
posn))
self.assertEqual(
g_arr, g_surf, "%i != %i, color: green, flags: %i"
", bpp: %i, posn: %s" %
(r_arr, r_surf, surf.get_flags(), surf.get_bitsize(),
posn))
self.assertEqual(
b_arr, b_surf, "%i != %i, color: blue, flags: %i"
", bpp: %i, posn: %s" %
(r_arr, r_surf, surf.get_flags(), surf.get_bitsize(),
posn))
swapped_dst[...] = 0
self.assertFalse(surf.get_locked())
surface_to_array(swapped_dst, surf)
self.assertFalse(surf.get_locked())
for posn, i in self.test_points:
r_surf, g_surf, b_surf, a_surf = surf.get_at(posn)
r_arr, g_arr, b_arr = swapped_dst[posn]
self.assertEqual(
r_arr, r_surf, "%i != %i, color: red, flags: %i"
", bpp: %i, posn: %s" % (r_arr, r_surf, surf.get_flags(),
surf.get_bitsize(), posn))
self.assertEqual(
g_arr, g_surf, "%i != %i, color: green, flags: %i"
", bpp: %i, posn: %s" % (r_arr, r_surf, surf.get_flags(),
surf.get_bitsize(), posn))
self.assertEqual(
b_arr, b_surf, "%i != %i, color: blue, flags: %i"
", bpp: %i, posn: %s" % (r_arr, r_surf, surf.get_flags(),
surf.get_bitsize(), posn))
def pixels_alpha(surface):
"""pygame.numpyarray.pixels_alpha (Surface): return array
reference pixel alphas into a 2d array
Create a new 2D array that directly references the alpha values
(degree of transparency) in a Surface. Any changes to the array will
affect the pixels in the Surface. This is a fast operation since no
data is copied.
This can only work on 32-bit Surfaces with a per-pixel alpha value.
The Surface this array references will remain locked for the
lifetime of the array.
"""
if surface.get_bytesize() != 4:
raise ValueError("unsupported bit depth for alpha reference array")
lilendian = pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
# ARGB surface.
start = 0
if surface.get_shifts()[3] == 24 and lilendian:
# RGBA surface.
start = 3
elif surface.get_shifts()[3] == 0 and not lilendian:
start = 3
else:
raise ValueError("unsupported colormasks for alpha reference array")
array = numpy.ndarray \
(shape=(surface.get_width (), surface.get_height ()),
dtype=numpy.uint8, buffer=surface.get_buffer (),
offset=start, strides=(4, surface.get_pitch ()))
return array
def begin_render(self,surface,scene):
"""Begin rendering ``scene`` onto ``dest``.
If the renderer is already running, an exception is thrown instead.
Upon starting, the scene will be locked for writing.
:param pygame.Surface dest: A surface to draw onto.
:param scene: The scene to draw.
:type scene: :py:class:`.render.Scene`
"""
def on_complete(x):
pygame.event.post(pygame.event.Event(
self.ON_COMPLETE,
source=self,
scene=scene,
surface=surface))
py_format = (surface.get_bitsize(),surface.get_masks())
if py_format != self.last_channels[0]:
self.last_channels = (py_format,channels_from_surface(surface))
super(PygameRenderer,self).begin_render(
# for some reason, get_view returns a read-only buffer under Python
# 2.7 on Windows with Pygame 1.9.2a0
surface.get_view() if IS_PYTHON3 and hasattr(surface,'get_view') else surface.get_buffer(),
ntracer.render.ImageFormat(
surface.get_width(),
surface.get_height(),
self.last_channels[1],
surface.get_pitch(),
pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN),
scene,
on_complete)
def pixels_alpha (surface):
"""pygame.numpyarray.pixels_alpha (Surface): return array
reference pixel alphas into a 2d array
Create a new 2D array that directly references the alpha values
(degree of transparency) in a Surface. Any changes to the array will
affect the pixels in the Surface. This is a fast operation since no
data is copied.
This can only work on 32-bit Surfaces with a per-pixel alpha value.
The Surface this array references will remain locked for the
lifetime of the array.
"""
if surface.get_bytesize () != 4:
raise ValueError("unsupported bit depth for alpha reference array")
lilendian = pygame.get_sdl_byteorder () == pygame.LIL_ENDIAN
# ARGB surface.
start = 0
if surface.get_shifts ()[3] == 24 and lilendian:
# RGBA surface.
start = 3
elif surface.get_shifts ()[3] == 0 and not lilendian:
start = 3
else:
raise ValueError("unsupported colormasks for alpha reference array")
array = numpy.ndarray \
(shape=(surface.get_width (), surface.get_height ()),
dtype=numpy.uint8, buffer=surface.get_buffer (),
offset=start, strides=(4, surface.get_pitch ()))
return array
def begin_render(self, surface, scene):
"""Begin rendering ``scene`` onto ``dest``.
If the renderer is already running, an exception is thrown instead.
Upon starting, the scene will be locked for writing.
:param pygame.Surface dest: A surface to draw onto.
:param scene: The scene to draw.
:type scene: :py:class:`.render.Scene`
"""
def on_complete(x):
pygame.event.post(
pygame.event.Event(self.ON_COMPLETE,
source=self,
scene=scene,
surface=surface))
py_format = (surface.get_bitsize(), surface.get_masks())
if py_format != self.last_channels[0]:
self.last_channels = (py_format, channels_from_surface(surface))
super(PygameRenderer, self).begin_render(
# for some reason, get_view returns a read-only buffer under Python
# 2.7 on Windows with Pygame 1.9.2a0
surface.get_view() if IS_PYTHON3 and hasattr(surface, 'get_view')
else surface.get_buffer(),
ntracer.render.ImageFormat(
surface.get_width(), surface.get_height(),
self.last_channels[1], surface.get_pitch(),
pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN),
scene,
on_complete)
def test_get_sdl_byteorder(self):
# __doc__ (as of 2008-06-25) for pygame.base.get_sdl_byteorder:
# pygame.get_sdl_byteorder(): return int
# get the byte order of SDL
self.assert_(pygame.get_sdl_byteorder() + 1)
def test_get_sdl_byteorder(self):
# __doc__ (as of 2008-06-25) for pygame.base.get_sdl_byteorder:
# pygame.get_sdl_byteorder(): return int
# get the byte order of SDL
self.assert_(pygame.get_sdl_byteorder() + 1)
def is_little_endian(warning=False): if pygame.version.vernum[1] == 7: #byte ordering not available in this verion #so cheat and asume little endian if warning: print "Error: Pygame library too old to detect sdlendian. Assuming Little endian (Intel)" return True else: return pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
def is_little_endian(warning=False):
if pygame.version.vernum[1] == 7:
#byte ordering not available in this verion
#so cheat and asume little endian
if warning:
print "Error: Pygame library too old to detect sdlendian. Assuming Little endian (Intel)"
return True
else:
return pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
def pixels3d (surface):
"""pygame.numpyarray.pixels3d (Surface): return array
reference pixels into a 3d array
Create a new 3D array that directly references the pixel values in a
Surface. Any changes to the array will affect the pixels in the
Surface. This is a fast operation since no data is copied.
This will only work on Surfaces that have 24-bit or 32-bit
formats. Lower pixel formats cannot be referenced.
The Surface this references will remain locked for the lifetime of
the array (see the Surface.lock - lock the Surface memory for pixel
access method).
"""
bpp = surface.get_bytesize ()
if bpp < 3 or bpp > 4:
raise ValueError("unsupported bit depth for 3D reference array")
lilendian = pygame.get_sdl_byteorder () == pygame.LIL_ENDIAN
start = 0
step = 0
# Check for RGB or BGR surface.
shifts = surface.get_shifts ()
if shifts[0] == 16 and shifts[1] == 8 and shifts[2] == 0:
# RGB
if lilendian:
start = 2
step = -1
else:
start = 0
step = 1
elif shifts[2] == 16 and shifts[1] == 8 and shifts[0] == 0:
# BGR
if lilendian:
start = 0
step = 1
else:
start = 2
step = -1
else:
raise ValueError("unsupported colormasks for 3D reference array")
if bpp == 4 and not lilendian:
start += 1
array = numpy.ndarray \
(shape=(surface.get_width (), surface.get_height (), 3),
dtype=numpy.uint8, buffer=surface.get_buffer (),
offset=start, strides=(bpp, surface.get_pitch (),step))
return array
def pixels3d(surface):
"""pygame.numpyarray.pixels3d (Surface): return array
reference pixels into a 3d array
Create a new 3D array that directly references the pixel values in a
Surface. Any changes to the array will affect the pixels in the
Surface. This is a fast operation since no data is copied.
This will only work on Surfaces that have 24-bit or 32-bit
formats. Lower pixel formats cannot be referenced.
The Surface this references will remain locked for the lifetime of
the array (see the Surface.lock - lock the Surface memory for pixel
access method).
"""
bpp = surface.get_bytesize()
if bpp < 3 or bpp > 4:
raise ValueError("unsupported bit depth for 3D reference array")
lilendian = pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
start = 0
step = 0
# Check for RGB or BGR surface.
shifts = surface.get_shifts()
if shifts[0] == 16 and shifts[1] == 8 and shifts[2] == 0:
# RGB
if lilendian:
start = 2
step = -1
else:
start = 0
step = 1
elif shifts[2] == 16 and shifts[1] == 8 and shifts[0] == 0:
# BGR
if lilendian:
start = 0
step = 1
else:
start = 2
step = -1
else:
raise ValueError("unsupported colormasks for 3D reference array")
if bpp == 4 and not lilendian:
start += 1
array = numpy.ndarray \
(shape=(surface.get_width (), surface.get_height (), 3),
dtype=numpy.uint8, buffer=surface.get_buffer (),
offset=start, strides=(bpp, surface.get_pitch (),step))
return array
def test_get_array_interface(self):
surf = pygame.Surface((7, 11), 0, 32)
d = pygame._view.get_array_interface(surf.get_view("2"))
self.assertEqual(len(d), 5)
self.assertEqual(d['version'], 3)
if pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN:
byteorder = '<'
else:
byteorder = '>'
self.assertEqual(d['typestr'], byteorder + 'u4')
self.assertEqual(d['shape'], (7, 11))
self.assertEqual(d['strides'], (4, 28))
self.assertEqual(d['data'], (surf._pixels_address, False))
def test_array_interface(self):
mixer.init(22050, -16, 1, allowedchanges=0)
snd = mixer.Sound(buffer=as_bytes('\x00\x7f') * 20)
d = snd.__array_interface__
self.assertTrue(isinstance(d, dict))
if pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN:
typestr = '<i2'
else:
typestr = '>i2'
self.assertEqual(d['typestr'], typestr)
self.assertEqual(d['shape'], (20, ))
self.assertEqual(d['strides'], (2, ))
self.assertEqual(d['data'], (snd._samples_address, False))
def test_array_interface(self):
mixer.init(22050, -16, 1, allowedchanges=0)
snd = mixer.Sound(buffer=b"\x00\x7f" * 20)
d = snd.__array_interface__
self.assertTrue(isinstance(d, dict))
if pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN:
typestr = "<i2"
else:
typestr = ">i2"
self.assertEqual(d["typestr"], typestr)
self.assertEqual(d["shape"], (20, ))
self.assertEqual(d["strides"], (2, ))
self.assertEqual(d["data"], (snd._samples_address, False))
def test_array_interface(self):
mixer.init(22050, -16, 1)
try:
snd = mixer.Sound(as_bytes('\x00\x7f') * 20)
d = snd.__array_interface__
self.assertTrue(isinstance(d, dict))
if pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN:
typestr = '<i2'
else:
typestr = '>i2'
self.assertEqual(d['typestr'], typestr)
self.assertEqual(d['shape'], (20,))
self.assertEqual(d['strides'], (2,))
self.assertEqual(d['data'], (snd._samples_address, False))
finally:
mixer.quit()
def array2d(surface):
"""pygame.numpyarray.array2d (Surface): return array
copy pixels into a 2d array
Copy the pixels from a Surface into a 2D array. The bit depth of the
surface will control the size of the integer values, and will work
for any type of pixel format.
This function will temporarily lock the Surface as pixels are copied
(see the Surface.lock - lock the Surface memory for pixel access
method).
"""
bpp = surface.get_bytesize()
if bpp <= 0 or bpp > 4:
raise ValueError("unsupported bit depth for 2D array")
# Taken from Alex Holkner's pygame-ctypes package. Thanks a lot.
data = surface.get_buffer().raw
# Remove extra pitch from each row.
width = surface.get_width()
pitchdiff = surface.get_pitch() - width * bpp
if pitchdiff > 0:
pattern = re.compile('(%s)%s' % ('.' * width * bpp, '.' * pitchdiff),
flags=re.DOTALL)
data = ''.join(pattern.findall(data))
if bpp == 3:
# Pad each triplet of bytes with another zero
pattern = re.compile('...', flags=re.DOTALL)
data = '\0'.join(pattern.findall(data))
if pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN:
data += '\0'
else:
data = '\0' + data
bpp = 4
typecode = (numpy.uint8, numpy.uint16, None, numpy.int32)[bpp - 1]
array = numpy.fromstring(data, typecode)
array.shape = (surface.get_height(), width)
array = numpy.transpose(array)
return array
def array2d (surface):
"""pygame.numpyarray.array2d (Surface): return array
copy pixels into a 2d array
Copy the pixels from a Surface into a 2D array. The bit depth of the
surface will control the size of the integer values, and will work
for any type of pixel format.
This function will temporarily lock the Surface as pixels are copied
(see the Surface.lock - lock the Surface memory for pixel access
method).
"""
bpp = surface.get_bytesize ()
if bpp <= 0 or bpp > 4:
raise ValueError("unsupported bit depth for 2D array")
# Taken from Alex Holkner's pygame-ctypes package. Thanks a lot.
data = surface.get_buffer ().raw
# Remove extra pitch from each row.
width = surface.get_width ()
pitchdiff = surface.get_pitch () - width * bpp
if pitchdiff > 0:
pattern = re.compile ('(%s)%s' % ('.' * width * bpp, '.' * pitchdiff),
flags=re.DOTALL)
data = ''.join (pattern.findall (data))
if bpp == 3:
# Pad each triplet of bytes with another zero
pattern = re.compile ('...', flags=re.DOTALL)
data = '\0'.join (pattern.findall (data))
if pygame.get_sdl_byteorder () == pygame.LIL_ENDIAN:
data += '\0'
else:
data = '\0' + data
bpp = 4
typecode = (numpy.uint8, numpy.uint16, None, numpy.int32)[bpp - 1]
array = numpy.fromstring (data, typecode)
array.shape = (surface.get_height (), width)
array = numpy.transpose (array)
return array
def pixels_alpha (surface):
if surface.get_bytesize () != 4:
raise ValueError("unsupported bit depth for alpha reference array")
lilendian = pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
alpha_shift = surface.get_shifts()[3]
if alpha_shift & 7 <> 0:
raise ValueError("unsupported colormasks for alpha reference array")
start = alpha_shift >> 3
if not lilendian:
start = 3 - start
array = numpy.ndarray \
(shape=(surface.get_width (), surface.get_height ()),
dtype=numpy.uint8, buffer=surface.get_buffer (),
offset=start, strides=(4, surface.get_pitch ()))
return array
def test_surface_to_array_3d(self):
if pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN:
masks = (0xff, 0xff00, 0xff0000, 0)
else:
masks = (0xff000000, 0xff0000, 0xff00, 0)
dst = pygame.Surface(self.surf_size, 0, 24, masks=masks)
for surf in self.sources:
dst.fill((0, 0, 0, 0))
src_bitsize = surf.get_bitsize()
view = dst.get_view('3')
self.assertFalse(surf.get_locked())
surface_to_array(view, surf)
self.assertFalse(surf.get_locked())
for posn, i in self.test_points:
sc = surf.get_at(posn)[0:3]
dc = dst.get_at(posn)[0:3]
self.assertEqual(
dc, sc, "%s != %s: flags: %i"
", bpp: %i, posn: %s" %
(dc, sc, surf.get_flags(), surf.get_bitsize(), posn))
del view
def test_surface_to_array_3d(self):
if pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN:
masks = (0xff, 0xff00, 0xff0000, 0)
else:
masks = (0xff000000, 0xff0000, 0xff00, 0)
dst = pygame.Surface(self.surf_size, 0, 24, masks=masks)
for surf in self.sources:
dst.fill((0, 0, 0, 0))
src_bitsize = surf.get_bitsize()
view = dst.get_view('3')
self.assertFalse(surf.get_locked())
surface_to_array(view, surf)
self.assertFalse(surf.get_locked())
for posn, i in self.test_points:
sc = surf.get_at(posn)[0:3]
dc = dst.get_at(posn)[0:3]
self.assertEqual(dc, sc,
"%s != %s: flags: %i"
", bpp: %i, posn: %s" %
(dc, sc,
surf.get_flags(), surf.get_bitsize(),
posn))
del view
def test_get_sdl_byteorder(self):
"""Ensure the SDL byte order is valid"""
byte_order = pygame.get_sdl_byteorder()
expected_options = (pygame.LIL_ENDIAN, pygame.BIG_ENDIAN)
self.assertIn(byte_order, expected_options)
def NEWBUF_test_newbuf(self):
from ctypes import string_at
buftools = self.buftools
Exporter = buftools.Exporter
Importer = buftools.Importer
exp = Exporter((10,), 'B', readonly=True)
b = BufferProxy(exp)
self.assertEqual(b.length, exp.len)
self.assertEqual(b.raw, string_at(exp.buf, exp.len))
d = b.__array_interface__
try:
self.assertEqual(d['typestr'], '|u1')
self.assertEqual(d['shape'], exp.shape)
self.assertEqual(d['strides'], exp.strides)
self.assertEqual(d['data'], (exp.buf, True))
finally:
d = None
exp = Exporter((3,), '=h')
b = BufferProxy(exp)
self.assertEqual(b.length, exp.len)
self.assertEqual(b.raw, string_at(exp.buf, exp.len))
d = b.__array_interface__
try:
lil_endian = pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
f = '{}i{}'.format('<' if lil_endian else '>', exp.itemsize)
self.assertEqual(d['typestr'], f)
self.assertEqual(d['shape'], exp.shape)
self.assertEqual(d['strides'], exp.strides)
self.assertEqual(d['data'], (exp.buf, False))
finally:
d = None
exp = Exporter((10, 2), '=i')
b = BufferProxy(exp)
imp = Importer(b, buftools.PyBUF_RECORDS)
self.assertTrue(imp.obj is b)
self.assertEqual(imp.buf, exp.buf)
self.assertEqual(imp.ndim, exp.ndim)
self.assertEqual(imp.format, exp.format)
self.assertEqual(imp.readonly, exp.readonly)
self.assertEqual(imp.itemsize, exp.itemsize)
self.assertEqual(imp.len, exp.len)
self.assertEqual(imp.shape, exp.shape)
self.assertEqual(imp.strides, exp.strides)
self.assertTrue(imp.suboffsets is None)
d = {'typestr': '|u1',
'shape': (10,),
'strides': (1,),
'data': (9, True)} # 9? Will not reading the data anyway.
b = BufferProxy(d)
imp = Importer(b, buftools.PyBUF_SIMPLE)
self.assertTrue(imp.obj is b)
self.assertEqual(imp.buf, 9)
self.assertEqual(imp.len, 10)
self.assertEqual(imp.format, None)
self.assertEqual(imp.itemsize, 1)
self.assertEqual(imp.ndim, 0)
self.assertTrue(imp.readonly)
self.assertTrue(imp.shape is None)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
def test_surface_to_array_2d(self):
try:
from numpy import empty, dtype
except ImportError:
return
palette = self.test_palette
alpha_color = (0, 0, 0, 128)
dst_dims = self.surf_size
destinations = [empty(dst_dims, t) for t in self.dst_types]
if (pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN):
swapped_dst = empty(dst_dims, dtype('>u4'))
else:
swapped_dst = empty(dst_dims, dtype('<u4'))
for surf in self.sources:
src_bytesize = surf.get_bytesize()
for dst in destinations:
if dst.itemsize < src_bytesize:
self.assertRaises(ValueError, surface_to_array, dst, surf)
continue
dst[...] = 0
self.assertFalse(surf.get_locked())
surface_to_array(dst, surf)
self.assertFalse(surf.get_locked())
for posn, i in self.test_points:
sp = unsigned32(surf.get_at_mapped(posn))
dp = dst[posn]
self.assertEqual(dp, sp,
"%s != %s: flags: %i"
", bpp: %i, dtype: %s, posn: %s" %
(dp, sp,
surf.get_flags(), surf.get_bitsize(),
dst.dtype,
posn))
if surf.get_masks()[3]:
posn = (2, 1)
surf.set_at(posn, alpha_color)
surface_to_array(dst, surf)
sp = unsigned32(surf.get_at_mapped(posn))
dp = dst[posn]
self.assertEqual(dp, sp, "%s != %s: bpp: %i" %
(dp, sp, surf.get_bitsize()))
swapped_dst[...] = 0
self.assertFalse(surf.get_locked())
surface_to_array(swapped_dst, surf)
self.assertFalse(surf.get_locked())
for posn, i in self.test_points:
sp = unsigned32(surf.get_at_mapped(posn))
dp = swapped_dst[posn]
self.assertEqual(dp, sp,
"%s != %s: flags: %i"
", bpp: %i, dtype: %s, posn: %s" %
(dp, sp,
surf.get_flags(), surf.get_bitsize(),
dst.dtype,
posn))
if surf.get_masks()[3]:
posn = (2, 1)
surf.set_at(posn, alpha_color)
self.assertFalse(surf.get_locked())
surface_to_array(swapped_dst, surf)
self.assertFalse(surf.get_locked())
sp = unsigned32(surf.get_at_mapped(posn))
dp = swapped_dst[posn]
self.assertEqual(dp, sp, "%s != %s: bpp: %i" %
(dp, sp, surf.get_bitsize()))
def test_surface_to_array_2d(self):
try:
from numpy import empty, dtype
except ImportError:
return
palette = self.test_palette
alpha_color = (0, 0, 0, 128)
dst_dims = self.surf_size
destinations = [empty(dst_dims, t) for t in self.dst_types]
if (pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN):
swapped_dst = empty(dst_dims, dtype('>u4'))
else:
swapped_dst = empty(dst_dims, dtype('<u4'))
for surf in self.sources:
src_bytesize = surf.get_bytesize()
for dst in destinations:
if dst.itemsize < src_bytesize:
self.assertRaises(ValueError, surface_to_array, dst, surf)
continue
dst[...] = 0
self.assertFalse(surf.get_locked())
surface_to_array(dst, surf)
self.assertFalse(surf.get_locked())
for posn, i in self.test_points:
sp = unsigned32(surf.get_at_mapped(posn))
dp = dst[posn]
self.assertEqual(dp, sp,
"%s != %s: flags: %i"
", bpp: %i, dtype: %s, posn: %s" %
(dp, sp,
surf.get_flags(), surf.get_bitsize(),
dst.dtype,
posn))
if surf.get_masks()[3]:
posn = (2, 1)
surf.set_at(posn, alpha_color)
surface_to_array(dst, surf)
sp = unsigned32(surf.get_at_mapped(posn))
dp = dst[posn]
self.assertEqual(dp, sp, "%s != %s: bpp: %i" %
(dp, sp, surf.get_bitsize()))
swapped_dst[...] = 0
self.assertFalse(surf.get_locked())
surface_to_array(swapped_dst, surf)
self.assertFalse(surf.get_locked())
for posn, i in self.test_points:
sp = unsigned32(surf.get_at_mapped(posn))
dp = swapped_dst[posn]
self.assertEqual(dp, sp,
"%s != %s: flags: %i"
", bpp: %i, dtype: %s, posn: %s" %
(dp, sp,
surf.get_flags(), surf.get_bitsize(),
dst.dtype,
posn))
if surf.get_masks()[3]:
posn = (2, 1)
surf.set_at(posn, alpha_color)
self.assertFalse(surf.get_locked())
surface_to_array(swapped_dst, surf)
self.assertFalse(surf.get_locked())
sp = unsigned32(surf.get_at_mapped(posn))
dp = swapped_dst[posn]
self.assertEqual(dp, sp, "%s != %s: bpp: %i" %
(dp, sp, surf.get_bitsize()))
def test_surface_to_array_3d(self):
try:
from numpy import empty, dtype
except ImportError:
return
palette = self.test_palette
dst_dims = self.surf_size + (3,)
destinations = [empty(dst_dims, t) for t in self.dst_types]
if (pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN):
swapped_dst = empty(dst_dims, dtype('>u4'))
else:
swapped_dst = empty(dst_dims, dtype('<u4'))
for surf in self.sources:
src_bitsize = surf.get_bitsize()
for dst in destinations:
dst[...] = 0
self.assertFalse(surf.get_locked())
surface_to_array(dst, surf)
self.assertFalse(surf.get_locked())
for posn, i in self.test_points:
r_surf, g_surf, b_surf, a_surf = surf.get_at(posn)
r_arr, g_arr, b_arr = dst[posn]
self.assertEqual(r_arr, r_surf,
"%i != %i, color: red, flags: %i"
", bpp: %i, posn: %s" %
(r_arr, r_surf,
surf.get_flags(), surf.get_bitsize(),
posn))
self.assertEqual(g_arr, g_surf,
"%i != %i, color: green, flags: %i"
", bpp: %i, posn: %s" %
(r_arr, r_surf,
surf.get_flags(), surf.get_bitsize(),
posn))
self.assertEqual(b_arr, b_surf,
"%i != %i, color: blue, flags: %i"
", bpp: %i, posn: %s" %
(r_arr, r_surf,
surf.get_flags(), surf.get_bitsize(),
posn))
swapped_dst[...] = 0
self.assertFalse(surf.get_locked())
surface_to_array(swapped_dst, surf)
self.assertFalse(surf.get_locked())
for posn, i in self.test_points:
r_surf, g_surf, b_surf, a_surf = surf.get_at(posn)
r_arr, g_arr, b_arr = swapped_dst[posn]
self.assertEqual(r_arr, r_surf,
"%i != %i, color: red, flags: %i"
", bpp: %i, posn: %s" %
(r_arr, r_surf,
surf.get_flags(), surf.get_bitsize(),
posn))
self.assertEqual(g_arr, g_surf,
"%i != %i, color: green, flags: %i"
", bpp: %i, posn: %s" %
(r_arr, r_surf,
surf.get_flags(), surf.get_bitsize(),
posn))
self.assertEqual(b_arr, b_surf,
"%i != %i, color: blue, flags: %i"
", bpp: %i, posn: %s" %
(r_arr, r_surf,
surf.get_flags(), surf.get_bitsize(),
posn))
def NEWBUF_test_newbuf(self):
from ctypes import string_at
from pygame.tests.test_utils import buftools
Exporter = buftools.Exporter
Importer = buftools.Importer
exp = Exporter((10,), "B", readonly=True)
b = BufferProxy(exp)
self.assertEqual(b.length, exp.len)
self.assertEqual(b.raw, string_at(exp.buf, exp.len))
d = b.__array_interface__
try:
self.assertEqual(d["typestr"], "|u1")
self.assertEqual(d["shape"], exp.shape)
self.assertEqual(d["strides"], exp.strides)
self.assertEqual(d["data"], (exp.buf, True))
finally:
d = None
exp = Exporter((3,), "=h")
b = BufferProxy(exp)
self.assertEqual(b.length, exp.len)
self.assertEqual(b.raw, string_at(exp.buf, exp.len))
d = b.__array_interface__
try:
lil_endian = pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
f = "{}i{}".format("<" if lil_endian else ">", exp.itemsize)
self.assertEqual(d["typestr"], f)
self.assertEqual(d["shape"], exp.shape)
self.assertEqual(d["strides"], exp.strides)
self.assertEqual(d["data"], (exp.buf, False))
finally:
d = None
exp = Exporter((10, 2), "=i")
b = BufferProxy(exp)
imp = Importer(b, buftools.PyBUF_RECORDS)
self.assertTrue(imp.obj is b)
self.assertEqual(imp.buf, exp.buf)
self.assertEqual(imp.ndim, exp.ndim)
self.assertEqual(imp.format, exp.format)
self.assertEqual(imp.readonly, exp.readonly)
self.assertEqual(imp.itemsize, exp.itemsize)
self.assertEqual(imp.len, exp.len)
self.assertEqual(imp.shape, exp.shape)
self.assertEqual(imp.strides, exp.strides)
self.assertTrue(imp.suboffsets is None)
d = {
"typestr": "|u1",
"shape": (10,),
"strides": (1,),
"data": (9, True),
} # 9? Will not reading the data anyway.
b = BufferProxy(d)
imp = Importer(b, buftools.PyBUF_SIMPLE)
self.assertTrue(imp.obj is b)
self.assertEqual(imp.buf, 9)
self.assertEqual(imp.len, 10)
self.assertEqual(imp.format, None)
self.assertEqual(imp.itemsize, 1)
self.assertEqual(imp.ndim, 0)
self.assertTrue(imp.readonly)
self.assertTrue(imp.shape is None)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
def NEWBUF_export_check(self):
freq, fmt, channels = mixer.get_init()
if channels == 1:
ndim = 1
else:
ndim = 2
itemsize = abs(fmt) // 8
formats = {8: 'B', -8: 'b',
16: '=H', -16: '=h',
32: '=I', -32: '=i', # 32 and 64 for future consideration
64: '=Q', -64: '=q'}
format = formats[fmt]
buftools = self.buftools
Exporter = buftools.Exporter
Importer = buftools.Importer
is_lil_endian = pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
fsys, frev = ('<', '>') if is_lil_endian else ('>', '<')
shape = (10, channels)[:ndim]
strides = (channels * itemsize, itemsize)[2 - ndim:]
exp = Exporter(shape, format=frev + 'i')
snd = mixer.Sound(array=exp)
buflen = len(exp) * itemsize * channels
imp = Importer(snd, buftools.PyBUF_SIMPLE)
self.assertEqual(imp.ndim, 0)
self.assertTrue(imp.format is None)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertTrue(imp.shape is None)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_WRITABLE)
self.assertEqual(imp.ndim, 0)
self.assertTrue(imp.format is None)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertTrue(imp.shape is None)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_FORMAT)
self.assertEqual(imp.ndim, 0)
self.assertEqual(imp.format, format)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertTrue(imp.shape is None)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_ND)
self.assertEqual(imp.ndim, ndim)
self.assertTrue(imp.format is None)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertEqual(imp.shape, shape)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_STRIDES)
self.assertEqual(imp.ndim, ndim)
self.assertTrue(imp.format is None)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertEqual(imp.shape, shape)
self.assertEqual(imp.strides, strides)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_FULL_RO)
self.assertEqual(imp.ndim, ndim)
self.assertEqual(imp.format, format)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, 2)
self.assertEqual(imp.shape, shape)
self.assertEqual(imp.strides, strides)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_FULL_RO)
self.assertEqual(imp.ndim, ndim)
self.assertEqual(imp.format, format)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertEqual(imp.shape, exp.shape)
self.assertEqual(imp.strides, strides)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_C_CONTIGUOUS)
self.assertEqual(imp.ndim, ndim)
self.assertTrue(imp.format is None)
self.assertEqual(imp.strides, strides)
imp = Importer(snd, buftools.PyBUF_ANY_CONTIGUOUS)
self.assertEqual(imp.ndim, ndim)
self.assertTrue(imp.format is None)
self.assertEqual(imp.strides, strides)
if (ndim == 1):
imp = Importer(snd, buftools.PyBUF_F_CONTIGUOUS)
self.assertEqual(imp.ndim, 1)
self.assertTrue(imp.format is None)
self.assertEqual(imp.strides, strides)
else:
self.assertRaises(BufferError, Importer, snd,
buftools.PyBUF_F_CONTIGUOUS)
def blit_array (surface, array):
"""pygame.numpyarray.blit_array (Surface, array): return None
blit directly from a array values
Directly copy values from an array into a Surface. This is faster
than converting the array into a Surface and blitting. The array
must be the same dimensions as the Surface and will completely
replace all pixel values.
This function will temporarily lock the Surface as the new values
are copied.
"""
bpp = surface.get_bytesize ()
if bpp <= 0 or bpp > 4:
raise ValueError("unsupported bit depth for surface")
shape = array.shape
width = surface.get_width ()
typecode = (numpy.uint8, numpy.uint16, None, numpy.uint32)[bpp - 1]
array = array.astype (typecode)
# Taken from from Alex Holkner's pygame-ctypes package. Thanks a
# lot.
if len(shape) == 3 and shape[2] == 3:
array = numpy.transpose (array, (1, 0, 2))
shifts = surface.get_shifts ()
losses = surface.get_losses ()
array = (array[:,:,::3] >> losses[0] << shifts[0]) | \
(array[:,:,1::3] >> losses[1] << shifts[1]) | \
(array[:,:,2::3] >> losses[2] << shifts[2])
elif len (shape) == 2:
array = numpy.transpose (array)
else:
raise ValueError("must be a valid 2d or 3d array")
if width != shape[0] or surface.get_height () != shape[1]:
raise ValueError("array must match the surface dimensions")
itemsize = array.itemsize
data = array.tostring ()
if itemsize > bpp:
# Trim bytes from each element, keep least significant byte(s)
pattern = '%s(%s)' % ('.' * (itemsize - bpp), '.' * bpp)
if pygame.get_sdl_byteorder () == pygame.LIL_ENDIAN:
pattern = '(%s)%s' % ('.' * bpp, '.' * (itemsize - bpp))
data = ''.join (re.compile (pattern, flags=re.DOTALL).findall (data))
elif itemsize < bpp:
# Add pad bytes to each element, at most significant end
pad = '\0' * (bpp - itemsize)
pixels = re.compile ('.' * itemsize, flags=re.DOTALL).findall (data)
data = pad.join (pixels)
if pygame.get_sdl_byteorder () == pygame.LIL_ENDIAN:
data = data + pad
else:
data = pad + data
# Add zeros pad for pitch correction
pitchdiff = surface.get_pitch () - width * bpp
if pitchdiff > 0:
pad = '\0' * pitchdiff
rows = re.compile ('.' * width * bpp, flags=re.DOTALL).findall (data)
data = pad.join (rows) + pad
surface.get_buffer ().write (data, 0)
def NEWBUF_test_PgDict_AsBuffer_PyBUF_flags(self):
from pygame.bufferproxy import BufferProxy
is_lil_endian = pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
fsys, frev = ('<', '>') if is_lil_endian else ('>', '<')
buftools = self.buftools
Importer = buftools.Importer
a = BufferProxy({'typestr': '|u4',
'shape': (10, 2),
'data': (9, False)}) # 9? No data accesses.
b = Importer(a, buftools.PyBUF_SIMPLE)
self.assertEqual(b.ndim, 0)
self.assertTrue(b.format is None)
self.assertEqual(b.len, a.length)
self.assertEqual(b.itemsize, 4)
self.assertTrue(b.shape is None)
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 9)
b = Importer(a, buftools.PyBUF_WRITABLE)
self.assertEqual(b.ndim, 0)
self.assertTrue(b.format is None)
self.assertEqual(b.len, a.length)
self.assertEqual(b.itemsize, 4)
self.assertTrue(b.shape is None)
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 9)
b = Importer(a, buftools.PyBUF_ND)
self.assertEqual(b.ndim, 2)
self.assertTrue(b.format is None)
self.assertEqual(b.len, a.length)
self.assertEqual(b.itemsize, 4)
self.assertEqual(b.shape, (10, 2))
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 9)
a = BufferProxy({'typestr': fsys + 'i2',
'shape': (5, 10),
'strides': (24, 2),
'data': (42, False)}) # 42? No data accesses.
b = Importer(a, buftools.PyBUF_STRIDES)
self.assertEqual(b.ndim, 2)
self.assertTrue(b.format is None)
self.assertEqual(b.len, 100)
self.assertEqual(b.itemsize, 2)
self.assertEqual(b.shape, (5, 10))
self.assertEqual(b.strides, (24, 2))
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 42)
b = Importer(a, buftools.PyBUF_FULL_RO)
self.assertEqual(b.ndim, 2)
self.assertEqual(b.format, '=h')
self.assertEqual(b.len, 100)
self.assertEqual(b.itemsize, 2)
self.assertEqual(b.shape, (5, 10))
self.assertEqual(b.strides, (24, 2))
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 42)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_SIMPLE)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_ND)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_C_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_F_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_ANY_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_CONTIG)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_SIMPLE)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_ND)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_C_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_F_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_ANY_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_CONTIG)
a = BufferProxy({'typestr': frev + 'i2',
'shape': (3, 5, 10),
'strides': (120, 24, 2),
'data': (1000000, True)}) # 1000000? No data accesses.
b = Importer(a, buftools.PyBUF_FULL_RO)
self.assertEqual(b.ndim, 3)
self.assertEqual(b.format, frev + 'h')
self.assertEqual(b.len, 300)
self.assertEqual(b.itemsize, 2)
self.assertEqual(b.shape, (3, 5, 10))
self.assertEqual(b.strides, (120, 24, 2))
self.assertTrue(b.suboffsets is None)
self.assertTrue(b.readonly)
self.assertEqual(b.buf, 1000000)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_FULL)
def blit_array(surface, array):
"""pygame.numpyarray.blit_array (Surface, array): return None
blit directly from a array values
Directly copy values from an array into a Surface. This is faster
than converting the array into a Surface and blitting. The array
must be the same dimensions as the Surface and will completely
replace all pixel values.
This function will temporarily lock the Surface as the new values
are copied.
"""
bpp = surface.get_bytesize()
if bpp <= 0 or bpp > 4:
raise ValueError("unsupported bit depth for surface")
shape = array.shape
width = surface.get_width()
typecode = (numpy.uint8, numpy.uint16, None, numpy.uint32)[bpp - 1]
array = array.astype(typecode)
# Taken from from Alex Holkner's pygame-ctypes package. Thanks a
# lot.
if len(shape) == 3 and shape[2] == 3:
array = numpy.transpose(array, (1, 0, 2))
shifts = surface.get_shifts()
losses = surface.get_losses()
array = (array[:,:,::3] >> losses[0] << shifts[0]) | \
(array[:,:,1::3] >> losses[1] << shifts[1]) | \
(array[:,:,2::3] >> losses[2] << shifts[2])
elif len(shape) == 2:
array = numpy.transpose(array)
else:
raise ValueError("must be a valid 2d or 3d array")
if width != shape[0] or surface.get_height() != shape[1]:
raise ValueError("array must match the surface dimensions")
itemsize = array.itemsize
data = array.tostring()
if itemsize > bpp:
# Trim bytes from each element, keep least significant byte(s)
pattern = '%s(%s)' % ('.' * (itemsize - bpp), '.' * bpp)
if pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN:
pattern = '(%s)%s' % ('.' * bpp, '.' * (itemsize - bpp))
data = ''.join(re.compile(pattern, flags=re.DOTALL).findall(data))
elif itemsize < bpp:
# Add pad bytes to each element, at most significant end
pad = '\0' * (bpp - itemsize)
pixels = re.compile('.' * itemsize, flags=re.DOTALL).findall(data)
data = pad.join(pixels)
if pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN:
data = data + pad
else:
data = pad + data
# Add zeros pad for pitch correction
pitchdiff = surface.get_pitch() - width * bpp
if pitchdiff > 0:
pad = '\0' * pitchdiff
rows = re.compile('.' * width * bpp, flags=re.DOTALL).findall(data)
data = pad.join(rows) + pad
surface.get_buffer().write(data, 0)
import pygame as pg
pg.init()
try:
raise pg.error("ASD")
except RuntimeError:
print("RTE")
print(pg.get_sdl_version())
print(pg.get_sdl_byteorder())
def NEWBUF_test_PgObject_AsBuffer_PyBUF_flags(self):
from pygame.bufferproxy import BufferProxy
import ctypes
is_lil_endian = pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
fsys, frev = ('<', '>') if is_lil_endian else ('>', '<')
buftools = self.buftools
Importer = buftools.Importer
e = arrinter.Exporter((10, 2), typekind='f',
itemsize=ctypes.sizeof(ctypes.c_double))
a = BufferProxy(e)
b = Importer(a, buftools.PyBUF_SIMPLE)
self.assertEqual(b.ndim, 0)
self.assertTrue(b.format is None)
self.assertEqual(b.len, e.len)
self.assertEqual(b.itemsize, e.itemsize)
self.assertTrue(b.shape is None)
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, e.data)
b = Importer(a, buftools.PyBUF_WRITABLE)
self.assertEqual(b.ndim, 0)
self.assertTrue(b.format is None)
self.assertEqual(b.len, e.len)
self.assertEqual(b.itemsize, e.itemsize)
self.assertTrue(b.shape is None)
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, e.data)
b = Importer(a, buftools.PyBUF_ND)
self.assertEqual(b.ndim, e.nd)
self.assertTrue(b.format is None)
self.assertEqual(b.len, a.length)
self.assertEqual(b.itemsize, e.itemsize)
self.assertEqual(b.shape, e.shape)
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, e.data)
e = arrinter.Exporter((5, 10), typekind='i', itemsize=2,
strides=(24, 2))
a = BufferProxy(e)
b = Importer(a, buftools.PyBUF_STRIDES)
self.assertEqual(b.ndim, e.nd)
self.assertTrue(b.format is None)
self.assertEqual(b.len, e.len)
self.assertEqual(b.itemsize, e.itemsize)
self.assertEqual(b.shape, e.shape)
self.assertEqual(b.strides, e.strides)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, e.data)
b = Importer(a, buftools.PyBUF_FULL_RO)
self.assertEqual(b.ndim, e.nd)
self.assertEqual(b.format, '=h')
self.assertEqual(b.len, e.len)
self.assertEqual(b.itemsize, e.itemsize)
self.assertEqual(b.shape, e.shape)
self.assertEqual(b.strides, e.strides)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, e.data)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_SIMPLE)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_WRITABLE)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_WRITABLE)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_ND)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_C_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_F_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_ANY_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_CONTIG)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_SIMPLE)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_ND)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_C_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_F_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_ANY_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_CONTIG)
e = arrinter.Exporter((3, 5, 10), typekind='i', itemsize=2,
strides=(120, 24, 2),
flags=arrinter.PAI_ALIGNED)
a = BufferProxy(e)
b = Importer(a, buftools.PyBUF_FULL_RO)
self.assertEqual(b.ndim, e.nd)
self.assertEqual(b.format, frev + 'h')
self.assertEqual(b.len, e.len)
self.assertEqual(b.itemsize, e.itemsize)
self.assertEqual(b.shape, e.shape)
self.assertEqual(b.strides, e.strides)
self.assertTrue(b.suboffsets is None)
self.assertTrue(b.readonly)
self.assertEqual(b.buf, e.data)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_FULL)
def NEWBUF_export_check(self):
freq, fmt, channels = mixer.get_init()
if channels == 1:
ndim = 1
else:
ndim = 2
itemsize = abs(fmt) // 8
formats = {
8: 'B',
-8: 'b',
16: '=H',
-16: '=h',
32: '=I',
-32: '=i', # 32 and 64 for future consideration
64: '=Q',
-64: '=q'
}
format = formats[fmt]
buftools = self.buftools
Exporter = buftools.Exporter
Importer = buftools.Importer
is_lil_endian = pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
fsys, frev = ('<', '>') if is_lil_endian else ('>', '<')
shape = (10, channels)[:ndim]
strides = (channels * itemsize, itemsize)[2 - ndim:]
exp = Exporter(shape, format=frev + 'i')
snd = mixer.Sound(array=exp)
buflen = len(exp) * itemsize * channels
imp = Importer(snd, buftools.PyBUF_SIMPLE)
self.assertEqual(imp.ndim, 0)
self.assertTrue(imp.format is None)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertTrue(imp.shape is None)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_WRITABLE)
self.assertEqual(imp.ndim, 0)
self.assertTrue(imp.format is None)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertTrue(imp.shape is None)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_FORMAT)
self.assertEqual(imp.ndim, 0)
self.assertEqual(imp.format, format)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertTrue(imp.shape is None)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_ND)
self.assertEqual(imp.ndim, ndim)
self.assertTrue(imp.format is None)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertEqual(imp.shape, shape)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_STRIDES)
self.assertEqual(imp.ndim, ndim)
self.assertTrue(imp.format is None)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertEqual(imp.shape, shape)
self.assertEqual(imp.strides, strides)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_FULL_RO)
self.assertEqual(imp.ndim, ndim)
self.assertEqual(imp.format, format)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, 2)
self.assertEqual(imp.shape, shape)
self.assertEqual(imp.strides, strides)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_FULL_RO)
self.assertEqual(imp.ndim, ndim)
self.assertEqual(imp.format, format)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertEqual(imp.shape, exp.shape)
self.assertEqual(imp.strides, strides)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_C_CONTIGUOUS)
self.assertEqual(imp.ndim, ndim)
self.assertTrue(imp.format is None)
self.assertEqual(imp.strides, strides)
imp = Importer(snd, buftools.PyBUF_ANY_CONTIGUOUS)
self.assertEqual(imp.ndim, ndim)
self.assertTrue(imp.format is None)
self.assertEqual(imp.strides, strides)
if (ndim == 1):
imp = Importer(snd, buftools.PyBUF_F_CONTIGUOUS)
self.assertEqual(imp.ndim, 1)
self.assertTrue(imp.format is None)
self.assertEqual(imp.strides, strides)
else:
self.assertRaises(BufferError, Importer, snd,
buftools.PyBUF_F_CONTIGUOUS)
def _NEWBUF_export_check(self):
freq, fmt, channels = mixer.get_init()
ndim = 1 if (channels == 1) else 2
itemsize = abs(fmt) // 8
formats = {
8: "B",
-8: "b",
16: "=H",
-16: "=h",
32: "=I",
-32: "=i", # 32 and 64 for future consideration
64: "=Q",
-64: "=q",
}
format = formats[fmt]
from pygame.tests.test_utils import buftools
Exporter = buftools.Exporter
Importer = buftools.Importer
is_lil_endian = pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
fsys, frev = ("<", ">") if is_lil_endian else (">", "<")
shape = (10, channels)[:ndim]
strides = (channels * itemsize, itemsize)[2 - ndim:]
exp = Exporter(shape, format=frev + "i")
snd = mixer.Sound(array=exp)
buflen = len(exp) * itemsize * channels
imp = Importer(snd, buftools.PyBUF_SIMPLE)
self.assertEqual(imp.ndim, 0)
self.assertTrue(imp.format is None)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertTrue(imp.shape is None)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_WRITABLE)
self.assertEqual(imp.ndim, 0)
self.assertTrue(imp.format is None)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertTrue(imp.shape is None)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_FORMAT)
self.assertEqual(imp.ndim, 0)
self.assertEqual(imp.format, format)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertTrue(imp.shape is None)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_ND)
self.assertEqual(imp.ndim, ndim)
self.assertTrue(imp.format is None)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertEqual(imp.shape, shape)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_STRIDES)
self.assertEqual(imp.ndim, ndim)
self.assertTrue(imp.format is None)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertEqual(imp.shape, shape)
self.assertEqual(imp.strides, strides)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_FULL_RO)
self.assertEqual(imp.ndim, ndim)
self.assertEqual(imp.format, format)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, 2)
self.assertEqual(imp.shape, shape)
self.assertEqual(imp.strides, strides)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_FULL_RO)
self.assertEqual(imp.ndim, ndim)
self.assertEqual(imp.format, format)
self.assertEqual(imp.len, buflen)
self.assertEqual(imp.itemsize, itemsize)
self.assertEqual(imp.shape, exp.shape)
self.assertEqual(imp.strides, strides)
self.assertTrue(imp.suboffsets is None)
self.assertFalse(imp.readonly)
self.assertEqual(imp.buf, snd._samples_address)
imp = Importer(snd, buftools.PyBUF_C_CONTIGUOUS)
self.assertEqual(imp.ndim, ndim)
self.assertTrue(imp.format is None)
self.assertEqual(imp.strides, strides)
imp = Importer(snd, buftools.PyBUF_ANY_CONTIGUOUS)
self.assertEqual(imp.ndim, ndim)
self.assertTrue(imp.format is None)
self.assertEqual(imp.strides, strides)
if ndim == 1:
imp = Importer(snd, buftools.PyBUF_F_CONTIGUOUS)
self.assertEqual(imp.ndim, 1)
self.assertTrue(imp.format is None)
self.assertEqual(imp.strides, strides)
else:
self.assertRaises(BufferError, Importer, snd,
buftools.PyBUF_F_CONTIGUOUS)
def test_PgDict_AsBuffer_PyBUF_flags(self):
from pygame.bufferproxy import BufferProxy
is_lil_endian = pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
fsys, frev = ("<", ">") if is_lil_endian else (">", "<")
buftools = self.buftools
Importer = buftools.Importer
a = BufferProxy({
"typestr": "|u4",
"shape": (10, 2),
"data": (9, False)
}) # 9? No data accesses.
b = Importer(a, buftools.PyBUF_SIMPLE)
self.assertEqual(b.ndim, 0)
self.assertTrue(b.format is None)
self.assertEqual(b.len, a.length)
self.assertEqual(b.itemsize, 4)
self.assertTrue(b.shape is None)
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 9)
b = Importer(a, buftools.PyBUF_WRITABLE)
self.assertEqual(b.ndim, 0)
self.assertTrue(b.format is None)
self.assertEqual(b.len, a.length)
self.assertEqual(b.itemsize, 4)
self.assertTrue(b.shape is None)
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 9)
b = Importer(a, buftools.PyBUF_ND)
self.assertEqual(b.ndim, 2)
self.assertTrue(b.format is None)
self.assertEqual(b.len, a.length)
self.assertEqual(b.itemsize, 4)
self.assertEqual(b.shape, (10, 2))
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 9)
a = BufferProxy({
"typestr": fsys + "i2",
"shape": (5, 10),
"strides": (24, 2),
"data": (42, False),
}) # 42? No data accesses.
b = Importer(a, buftools.PyBUF_STRIDES)
self.assertEqual(b.ndim, 2)
self.assertTrue(b.format is None)
self.assertEqual(b.len, 100)
self.assertEqual(b.itemsize, 2)
self.assertEqual(b.shape, (5, 10))
self.assertEqual(b.strides, (24, 2))
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 42)
b = Importer(a, buftools.PyBUF_FULL_RO)
self.assertEqual(b.ndim, 2)
self.assertEqual(b.format, "=h")
self.assertEqual(b.len, 100)
self.assertEqual(b.itemsize, 2)
self.assertEqual(b.shape, (5, 10))
self.assertEqual(b.strides, (24, 2))
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 42)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_SIMPLE)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_ND)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_C_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_F_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_ANY_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_CONTIG)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_SIMPLE)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_ND)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_C_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_F_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_ANY_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_CONTIG)
a = BufferProxy({
"typestr": frev + "i2",
"shape": (3, 5, 10),
"strides": (120, 24, 2),
"data": (1000000, True),
}) # 1000000? No data accesses.
b = Importer(a, buftools.PyBUF_FULL_RO)
self.assertEqual(b.ndim, 3)
self.assertEqual(b.format, frev + "h")
self.assertEqual(b.len, 300)
self.assertEqual(b.itemsize, 2)
self.assertEqual(b.shape, (3, 5, 10))
self.assertEqual(b.strides, (120, 24, 2))
self.assertTrue(b.suboffsets is None)
self.assertTrue(b.readonly)
self.assertEqual(b.buf, 1000000)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_FULL)
def NEWBUF_test_PgObject_AsBuffer_PyBUF_flags(self):
from pygame.bufferproxy import BufferProxy
import ctypes
is_lil_endian = pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
fsys, frev = ('<', '>') if is_lil_endian else ('>', '<')
buftools = self.buftools
Importer = buftools.Importer
e = arrinter.Exporter((10, 2),
typekind='f',
itemsize=ctypes.sizeof(ctypes.c_double))
a = BufferProxy(e)
b = Importer(a, buftools.PyBUF_SIMPLE)
self.assertEqual(b.ndim, 0)
self.assertTrue(b.format is None)
self.assertEqual(b.len, e.len)
self.assertEqual(b.itemsize, e.itemsize)
self.assertTrue(b.shape is None)
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, e.data)
b = Importer(a, buftools.PyBUF_WRITABLE)
self.assertEqual(b.ndim, 0)
self.assertTrue(b.format is None)
self.assertEqual(b.len, e.len)
self.assertEqual(b.itemsize, e.itemsize)
self.assertTrue(b.shape is None)
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, e.data)
b = Importer(a, buftools.PyBUF_ND)
self.assertEqual(b.ndim, e.nd)
self.assertTrue(b.format is None)
self.assertEqual(b.len, a.length)
self.assertEqual(b.itemsize, e.itemsize)
self.assertEqual(b.shape, e.shape)
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, e.data)
e = arrinter.Exporter((5, 10),
typekind='i',
itemsize=2,
strides=(24, 2))
a = BufferProxy(e)
b = Importer(a, buftools.PyBUF_STRIDES)
self.assertEqual(b.ndim, e.nd)
self.assertTrue(b.format is None)
self.assertEqual(b.len, e.len)
self.assertEqual(b.itemsize, e.itemsize)
self.assertEqual(b.shape, e.shape)
self.assertEqual(b.strides, e.strides)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, e.data)
b = Importer(a, buftools.PyBUF_FULL_RO)
self.assertEqual(b.ndim, e.nd)
self.assertEqual(b.format, '=h')
self.assertEqual(b.len, e.len)
self.assertEqual(b.itemsize, e.itemsize)
self.assertEqual(b.shape, e.shape)
self.assertEqual(b.strides, e.strides)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, e.data)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_SIMPLE)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_WRITABLE)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_WRITABLE)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_ND)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_C_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_F_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_ANY_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_CONTIG)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_SIMPLE)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_ND)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_C_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_F_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_ANY_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_CONTIG)
e = arrinter.Exporter((3, 5, 10),
typekind='i',
itemsize=2,
strides=(120, 24, 2),
flags=arrinter.PAI_ALIGNED)
a = BufferProxy(e)
b = Importer(a, buftools.PyBUF_FULL_RO)
self.assertEqual(b.ndim, e.nd)
self.assertEqual(b.format, frev + 'h')
self.assertEqual(b.len, e.len)
self.assertEqual(b.itemsize, e.itemsize)
self.assertEqual(b.shape, e.shape)
self.assertEqual(b.strides, e.strides)
self.assertTrue(b.suboffsets is None)
self.assertTrue(b.readonly)
self.assertEqual(b.buf, e.data)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_FULL)
def NEWBUF_test_newbuf(self):
from ctypes import string_at
from pygame.tests.test_utils import buftools
Exporter = buftools.Exporter
Importer = buftools.Importer
exp = Exporter((10, ), 'B', readonly=True)
b = BufferProxy(exp)
self.assertEqual(b.length, exp.len)
self.assertEqual(b.raw, string_at(exp.buf, exp.len))
d = b.__array_interface__
try:
self.assertEqual(d['typestr'], '|u1')
self.assertEqual(d['shape'], exp.shape)
self.assertEqual(d['strides'], exp.strides)
self.assertEqual(d['data'], (exp.buf, True))
finally:
d = None
exp = Exporter((3, ), '=h')
b = BufferProxy(exp)
self.assertEqual(b.length, exp.len)
self.assertEqual(b.raw, string_at(exp.buf, exp.len))
d = b.__array_interface__
try:
lil_endian = pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
f = '{}i{}'.format('<' if lil_endian else '>', exp.itemsize)
self.assertEqual(d['typestr'], f)
self.assertEqual(d['shape'], exp.shape)
self.assertEqual(d['strides'], exp.strides)
self.assertEqual(d['data'], (exp.buf, False))
finally:
d = None
exp = Exporter((10, 2), '=i')
b = BufferProxy(exp)
imp = Importer(b, buftools.PyBUF_RECORDS)
self.assertTrue(imp.obj is b)
self.assertEqual(imp.buf, exp.buf)
self.assertEqual(imp.ndim, exp.ndim)
self.assertEqual(imp.format, exp.format)
self.assertEqual(imp.readonly, exp.readonly)
self.assertEqual(imp.itemsize, exp.itemsize)
self.assertEqual(imp.len, exp.len)
self.assertEqual(imp.shape, exp.shape)
self.assertEqual(imp.strides, exp.strides)
self.assertTrue(imp.suboffsets is None)
d = {
'typestr': '|u1',
'shape': (10, ),
'strides': (1, ),
'data': (9, True)
} # 9? Will not reading the data anyway.
b = BufferProxy(d)
imp = Importer(b, buftools.PyBUF_SIMPLE)
self.assertTrue(imp.obj is b)
self.assertEqual(imp.buf, 9)
self.assertEqual(imp.len, 10)
self.assertEqual(imp.format, None)
self.assertEqual(imp.itemsize, 1)
self.assertEqual(imp.ndim, 0)
self.assertTrue(imp.readonly)
self.assertTrue(imp.shape is None)
self.assertTrue(imp.strides is None)
self.assertTrue(imp.suboffsets is None)
def NEWBUF_test_PgDict_AsBuffer_PyBUF_flags(self):
from pygame.bufferproxy import BufferProxy
is_lil_endian = pygame.get_sdl_byteorder() == pygame.LIL_ENDIAN
fsys, frev = ('<', '>') if is_lil_endian else ('>', '<')
buftools = self.buftools
Importer = buftools.Importer
a = BufferProxy({
'typestr': '|u4',
'shape': (10, 2),
'data': (9, False)
}) # 9? No data accesses.
b = Importer(a, buftools.PyBUF_SIMPLE)
self.assertEqual(b.ndim, 0)
self.assertTrue(b.format is None)
self.assertEqual(b.len, a.length)
self.assertEqual(b.itemsize, 4)
self.assertTrue(b.shape is None)
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 9)
b = Importer(a, buftools.PyBUF_WRITABLE)
self.assertEqual(b.ndim, 0)
self.assertTrue(b.format is None)
self.assertEqual(b.len, a.length)
self.assertEqual(b.itemsize, 4)
self.assertTrue(b.shape is None)
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 9)
b = Importer(a, buftools.PyBUF_ND)
self.assertEqual(b.ndim, 2)
self.assertTrue(b.format is None)
self.assertEqual(b.len, a.length)
self.assertEqual(b.itemsize, 4)
self.assertEqual(b.shape, (10, 2))
self.assertTrue(b.strides is None)
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 9)
a = BufferProxy({
'typestr': fsys + 'i2',
'shape': (5, 10),
'strides': (24, 2),
'data': (42, False)
}) # 42? No data accesses.
b = Importer(a, buftools.PyBUF_STRIDES)
self.assertEqual(b.ndim, 2)
self.assertTrue(b.format is None)
self.assertEqual(b.len, 100)
self.assertEqual(b.itemsize, 2)
self.assertEqual(b.shape, (5, 10))
self.assertEqual(b.strides, (24, 2))
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 42)
b = Importer(a, buftools.PyBUF_FULL_RO)
self.assertEqual(b.ndim, 2)
self.assertEqual(b.format, '=h')
self.assertEqual(b.len, 100)
self.assertEqual(b.itemsize, 2)
self.assertEqual(b.shape, (5, 10))
self.assertEqual(b.strides, (24, 2))
self.assertTrue(b.suboffsets is None)
self.assertFalse(b.readonly)
self.assertEqual(b.buf, 42)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_SIMPLE)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_ND)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_C_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_F_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_ANY_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_CONTIG)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_SIMPLE)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_ND)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_C_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_F_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a,
buftools.PyBUF_ANY_CONTIGUOUS)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_CONTIG)
a = BufferProxy({
'typestr': frev + 'i2',
'shape': (3, 5, 10),
'strides': (120, 24, 2),
'data': (1000000, True)
}) # 1000000? No data accesses.
b = Importer(a, buftools.PyBUF_FULL_RO)
self.assertEqual(b.ndim, 3)
self.assertEqual(b.format, frev + 'h')
self.assertEqual(b.len, 300)
self.assertEqual(b.itemsize, 2)
self.assertEqual(b.shape, (3, 5, 10))
self.assertEqual(b.strides, (120, 24, 2))
self.assertTrue(b.suboffsets is None)
self.assertTrue(b.readonly)
self.assertEqual(b.buf, 1000000)
self.assertRaises(BufferError, Importer, a, buftools.PyBUF_FULL)
