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# Copyright (C) 2016-present the asyncpg authors and contributors
# <see AUTHORS file>
#
# This module is part of asyncpg and is released under
# the Apache 2.0 License: http://www.apache.org/licenses/LICENSE-2.0
cdef inline _encode_points(WriteBuffer wbuf, object points):
cdef object point
for point in points:
wbuf.write_double(point[0])
wbuf.write_double(point[1])
cdef inline _decode_points(FRBuffer *buf):
cdef:
int32_t npts = hton.unpack_int32(frb_read(buf, 4))
pts = cpython.PyTuple_New(npts)
int32_t i
object point
double x
double y
for i in range(npts):
x = hton.unpack_double(frb_read(buf, 8))
y = hton.unpack_double(frb_read(buf, 8))
point = pgproto_types.Point(x, y)
cpython.Py_INCREF(point)
cpython.PyTuple_SET_ITEM(pts, i, point)
return pts
cdef box_encode(CodecContext settings, WriteBuffer wbuf, obj):
wbuf.write_int32(32)
_encode_points(wbuf, (obj[0], obj[1]))
cdef box_decode(CodecContext settings, FRBuffer *buf):
cdef:
double high_x = hton.unpack_double(frb_read(buf, 8))
double high_y = hton.unpack_double(frb_read(buf, 8))
double low_x = hton.unpack_double(frb_read(buf, 8))
double low_y = hton.unpack_double(frb_read(buf, 8))
return pgproto_types.Box(
pgproto_types.Point(high_x, high_y),
pgproto_types.Point(low_x, low_y))
cdef line_encode(CodecContext settings, WriteBuffer wbuf, obj):
wbuf.write_int32(24)
wbuf.write_double(obj[0])
wbuf.write_double(obj[1])
wbuf.write_double(obj[2])
cdef line_decode(CodecContext settings, FRBuffer *buf):
cdef:
double A = hton.unpack_double(frb_read(buf, 8))
double B = hton.unpack_double(frb_read(buf, 8))
double C = hton.unpack_double(frb_read(buf, 8))
return pgproto_types.Line(A, B, C)
cdef lseg_encode(CodecContext settings, WriteBuffer wbuf, obj):
wbuf.write_int32(32)
_encode_points(wbuf, (obj[0], obj[1]))
cdef lseg_decode(CodecContext settings, FRBuffer *buf):
cdef:
double p1_x = hton.unpack_double(frb_read(buf, 8))
double p1_y = hton.unpack_double(frb_read(buf, 8))
double p2_x = hton.unpack_double(frb_read(buf, 8))
double p2_y = hton.unpack_double(frb_read(buf, 8))
return pgproto_types.LineSegment((p1_x, p1_y), (p2_x, p2_y))
cdef point_encode(CodecContext settings, WriteBuffer wbuf, obj):
wbuf.write_int32(16)
wbuf.write_double(obj[0])
wbuf.write_double(obj[1])
cdef point_decode(CodecContext settings, FRBuffer *buf):
cdef:
double x = hton.unpack_double(frb_read(buf, 8))
double y = hton.unpack_double(frb_read(buf, 8))
return pgproto_types.Point(x, y)
cdef path_encode(CodecContext settings, WriteBuffer wbuf, obj):
cdef:
int8_t is_closed = 0
ssize_t npts
ssize_t encoded_len
int32_t i
if cpython.PyTuple_Check(obj):
is_closed = 1
elif cpython.PyList_Check(obj):
is_closed = 0
elif isinstance(obj, pgproto_types.Path):
is_closed = obj.is_closed
npts = len(obj)
encoded_len = 1 + 4 + 16 * npts
if encoded_len > _MAXINT32:
raise ValueError('path value too long')
wbuf.write_int32(<int32_t>encoded_len)
wbuf.write_byte(is_closed)
wbuf.write_int32(<int32_t>npts)
_encode_points(wbuf, obj)
cdef path_decode(CodecContext settings, FRBuffer *buf):
cdef:
int8_t is_closed = <int8_t>(frb_read(buf, 1)[0])
return pgproto_types.Path(*_decode_points(buf), is_closed=is_closed == 1)
cdef poly_encode(CodecContext settings, WriteBuffer wbuf, obj):
cdef:
bint is_closed
ssize_t npts
ssize_t encoded_len
int32_t i
npts = len(obj)
encoded_len = 4 + 16 * npts
if encoded_len > _MAXINT32:
raise ValueError('polygon value too long')
wbuf.write_int32(<int32_t>encoded_len)
wbuf.write_int32(<int32_t>npts)
_encode_points(wbuf, obj)
cdef poly_decode(CodecContext settings, FRBuffer *buf):
return pgproto_types.Polygon(*_decode_points(buf))
cdef circle_encode(CodecContext settings, WriteBuffer wbuf, obj):
wbuf.write_int32(24)
wbuf.write_double(obj[0][0])
wbuf.write_double(obj[0][1])
wbuf.write_double(obj[1])
cdef circle_decode(CodecContext settings, FRBuffer *buf):
cdef:
double center_x = hton.unpack_double(frb_read(buf, 8))
double center_y = hton.unpack_double(frb_read(buf, 8))
double radius = hton.unpack_double(frb_read(buf, 8))
return pgproto_types.Circle((center_x, center_y), radius)
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