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import halide as hl
import simplecpp_pystub
import complexcpp_pystub
from simplepy_generator import SimplePy
from complexpy_generator import ComplexPy
def _realize_and_check(f, offset=0):
b = hl.Buffer(hl.Float(32), [2, 2])
f.realize(b)
assert b[0, 0] == 3.5 + offset + 123
assert b[0, 1] == 4.5 + offset + 123
assert b[1, 0] == 4.5 + offset + 123
assert b[1, 1] == 5.5 + offset + 123
def test_simple(cls):
b_in = hl.Buffer(hl.UInt(8), [2, 2])
b_in.fill(123)
for xx in range(2):
for yy in range(2):
b_in[xx, yy] += xx + yy
# ----------- Inputs by-position
f = cls.call(b_in, 3.5)
_realize_and_check(f)
# ----------- Inputs by-name
f = cls.call(buffer_input=b_in, float_arg=3.5)
_realize_and_check(f)
f = cls.call(float_arg=3.5, buffer_input=b_in)
_realize_and_check(f)
# ----------- Above set again, w/ GeneratorParam mixed in
k = 42
gp = {"offset": k}
# (positional)
f = cls.call(b_in, 3.5, generator_params=gp)
_realize_and_check(f, k)
# (keyword)
f = cls.call(generator_params=gp, buffer_input=b_in, float_arg=3.5)
_realize_and_check(f, k)
f = cls.call(buffer_input=b_in, generator_params=gp, float_arg=3.5)
_realize_and_check(f, k)
f = cls.call(buffer_input=b_in, generator_params=gp, float_arg=3.5)
_realize_and_check(f, k)
f = cls.call(buffer_input=b_in, float_arg=3.5, generator_params=gp)
# Inputs w/ mixed by-position and by-name should be ok
f = cls.call(b_in, float_arg=3.5, generator_params=gp)
_realize_and_check(f, k)
# ----------- Test various failure modes
try:
# too many positional args
f = cls.call(b_in, 3.5, 4)
except hl.HalideError as e:
assert "allows at most 2 positional args, but 3 were specified." in str(e)
else:
assert False, "Did not see expected exception!"
try:
# too few positional args
f = cls.call(b_in)
except hl.HalideError as e:
assert "requires 2 args, but 1 were specified." in str(e)
else:
assert False, "Did not see expected exception!"
try:
# Inputs that can't be converted to what the receiver needs (positional)
f = cls.call(hl.f32(3.141592), "happy")
except hl.HalideError as e:
assert "Input buffer_input requires an ImageParam or Buffer argument" in str(e)
else:
assert False, "Did not see expected exception!"
try:
# Inputs that can't be converted to what the receiver needs (named)
f = cls.call(b_in, float_arg="bogus")
except hl.HalideError as e:
assert (
"Input float_arg requires a Param (or scalar literal) argument when using call"
in str(e)
)
else:
assert False, "Did not see expected exception!"
try:
# Input specified by both pos and kwarg
f = cls.call(b_in, 3.5, float_arg=4.5)
except hl.HalideError as e:
assert "Input float_arg specified multiple times." in str(e)
else:
assert False, "Did not see expected exception!"
try:
# generator_params is not a dict
f = cls.call(b_in, 3.5, generator_params=[1, 2, 3])
except hl.HalideError as e:
assert "generator_params must be a dict" in str(e)
else:
assert False, "Did not see expected exception!"
try:
# Bad gp name
f = cls.call(b_in, 3.5, generator_params={"foo": 0})
except hl.HalideError as e:
assert "has no GeneratorParam" in str(e)
else:
assert False, "Did not see expected exception!"
try:
# Bad input name
f = cls.call(buzzer_input=b_in, float_arg=3.5, generator_params=gp)
except hl.HalideError as e:
assert "Unknown input 'buzzer_input' specified via keyword argument" in str(e)
else:
assert False, "Did not see expected exception!"
try:
# Bad gp name
f = cls.call(
buffer_input=b_in,
float_arg=3.5,
generator_params=gp,
nonexistent_generator_param="wat",
)
except hl.HalideError as e:
assert (
"Unknown input 'nonexistent_generator_param' specified via keyword argument"
in str(e)
)
else:
assert False, "Did not see expected exception!"
def _make_constant_image(type):
constant_image = hl.Buffer(type, [32, 32, 3], "constant_image")
for x in range(32):
for y in range(32):
for c in range(3):
constant_image[x, y, c] = x + y + c
return constant_image
def test_complex(cls, extra_input_name=""):
constant_image = _make_constant_image(hl.UInt(8))
constant_image_u16 = _make_constant_image(hl.UInt(16))
input = hl.ImageParam(hl.UInt(8), 3, "input")
input.set(constant_image)
x, y, c = hl.Var(), hl.Var(), hl.Var()
float_arg = 1.25
int_arg = 33
gp = {
"simple_input.type": hl.UInt(8),
"tuple_output.type": [hl.Float(32), hl.Float(32)],
"untyped_buffer_input.type": hl.UInt(8),
"untyped_buffer_output.dim": 3,
"untyped_buffer_output.type": hl.UInt(8),
"vectorize": True,
}
kwargs = {
"typed_buffer_input": constant_image,
"untyped_buffer_input": constant_image,
"simple_input": constant_image,
"float_arg": float_arg,
"int_arg": int_arg,
"generator_params": gp,
}
if len(extra_input_name):
gp["extra_input_name"] = extra_input_name
kwargs[extra_input_name] = constant_image_u16
r = cls.call(**kwargs)
# return value is a tuple; unpack separately to avoid
# making the callsite above unreadable
(
simple_output,
tuple_output,
typed_buffer_output,
untyped_buffer_output,
static_compiled_buffer_output,
scalar_output,
extra_func_output,
) = r
b = simple_output.realize([32, 32, 3], target)
assert b.type() == hl.Float(32)
for x in range(32):
for y in range(32):
for c in range(3):
expected = constant_image[x, y, c]
actual = b[x, y, c]
assert expected == actual, f"Expected {expected} Actual {actual}"
b = tuple_output.realize([32, 32, 3], target)
assert b[0].type() == hl.Float(32)
assert b[1].type() == hl.Float(32)
assert len(b) == 2
for x in range(32):
for y in range(32):
for c in range(3):
expected1 = constant_image[x, y, c] * float_arg
expected2 = expected1 + int_arg
actual1, actual2 = b[0][x, y, c], b[1][x, y, c]
assert expected1 == actual1, f"Expected1 {expected1} Actual1 {actual1}"
assert expected2 == actual2, f"Expected2 {expected2} Actual1 {actual2}"
# TODO: Output<Buffer<>> has additional behaviors useful when a Stub
# is used within another Generator; this isn't yet implemented since there
# isn't yet Python bindings for Generator authoring. This section
# of the test may need revision at that point.
b = typed_buffer_output.realize([32, 32, 3], target)
assert b.type() == hl.Float(32)
for x in range(32):
for y in range(32):
for c in range(3):
expected = constant_image[x, y, c]
actual = b[x, y, c]
assert expected == actual, f"Expected {expected} Actual {actual}"
b = untyped_buffer_output.realize([32, 32, 3], target)
assert b.type() == hl.UInt(8)
for x in range(32):
for y in range(32):
for c in range(3):
expected = constant_image[x, y, c]
actual = b[x, y, c]
assert expected == actual, f"Expected {expected} Actual {actual}"
b = static_compiled_buffer_output.realize([4, 4, 1], target)
assert b.type() == hl.UInt(8)
for x in range(4):
for y in range(4):
for c in range(1):
expected = constant_image[x, y, c] + 42
actual = b[x, y, c]
assert expected == actual, f"Expected {expected} Actual {actual}"
b = scalar_output.realize([], target)
assert b.type() == hl.Float(32)
assert b[()] == 34.25
b = extra_func_output.realize([32, 32], target)
assert b.type() == hl.Float(64)
for x in range(32):
for y in range(32):
if len(extra_input_name):
expected = x + y + 1
else:
expected = 0
actual = b[x, y]
assert expected == actual, f"Expected {expected} Actual {actual}"
if __name__ == "__main__":
target = hl.get_jit_target_from_environment()
with hl.GeneratorContext(target):
test_simple(simplecpp_pystub)
test_complex(complexcpp_pystub)
test_complex(complexcpp_pystub, extra_input_name="foo_input")
test_simple(SimplePy)
test_complex(ComplexPy)
test_complex(ComplexPy, extra_input_name="foo_input")
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