[python-arrayfire] 10/250: Porting all functions from data.h

[Ghislain Vaillant]

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ghisvail-guest pushed a commit to branch debian/master
in repository python-arrayfire.

commit 381dac906a7543af290e89e1827c0a65cf557def
Author: Pavan Yalamanchili <pavan at arrayfire.com>
Date:   Fri Jun 19 16:56:29 2015 -0400

    Porting all functions from data.h
---
 arrayfire/data.py | 144 +++++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 126 insertions(+), 18 deletions(-)

diff --git a/arrayfire/data.py b/arrayfire/data.py
index 61fc9c0..b462992 100644
--- a/arrayfire/data.py
+++ b/arrayfire/data.py
@@ -1,7 +1,67 @@
+from sys import version_info
 from .library import *
 from .array import *
 from .util import *
 
+
+def constant(val, d0, d1=None, d2=None, d3=None, dtype=f32):
+
+    if not isinstance(dtype, c_int):
+        raise TypeError("Invalid dtype")
+
+    out = array()
+    dims = dim4(d0, d1, d2, d3)
+
+    if isinstance(val, complex):
+        c_real = c_double(val.real)
+        c_imag = c_double(val.imag)
+
+        if (dtype != c32 and dtype != c64):
+            dtype = c32
+
+        clib.af_constant_complex(pointer(out.arr), c_real, c_imag, 4, pointer(dims), dtype)
+    elif dtype == s64:
+        c_val = c_longlong(val.real)
+        clib.af_constant_long(pointer(out.arr), c_val, 4, pointer(dims))
+    elif dtype == u64:
+        c_val = c_ulonglong(val.real)
+        clib.af_constant_ulong(pointer(out.arr), c_val, 4, pointer(dims))
+    else:
+        c_val = c_double(val)
+        clib.af_constant(pointer(out.arr), c_val, 4, pointer(dims), dtype)
+    return out
+
+# Store builtin range function to be used later
+brange = range
+
+def range(d0, d1=None, d2=None, d3=None, dim=-1, dtype=f32):
+    if not isinstance(dtype, c_int):
+        raise TypeError("Invalid dtype")
+
+    out = array()
+    dims = dim4(d0, d1, d2, d3)
+
+    clib.af_range(pointer(out.arr), 4, pointer(dims), dim, dtype)
+    return out
+
+
+def iota(d0, d1=None, d2=None, d3=None, dim=-1, tile_dims=None, dtype=f32):
+    if not isinstance(dtype, c_int):
+        raise TypeError("Invalid dtype")
+
+    out = array()
+    dims = dim4(d0, d1, d2, d3)
+    td=[1]*4
+
+    if tile_dims is not None:
+        for i in brange(len(tile_dims)):
+            td[i] = tile_dims[i]
+
+    tdims = dim4(td[0], td[1], td[2], td[3])
+
+    clib.af_iota(pointer(out.arr), 4, pointer(dims), 4, pointer(tdims), dtype)
+    return out
+
 def randu(d0, d1=None, d2=None, d3=None, dtype=f32):
 
     if not isinstance(dtype, c_int):
@@ -24,6 +84,14 @@ def randn(d0, d1=None, d2=None, d3=None, dtype=f32):
     clib.af_randn(pointer(out.arr), 4, pointer(dims), dtype)
     return out
 
+def set_seed(seed=0):
+    clib.af_set_seed(c_ulonglong(seed))
+
+def get_seed():
+    seed = c_ulonglong(0)
+    clib.af_get_seed(pointer(seed))
+    return seed.value
+
 def identity(d0, d1=None, d2=None, d3=None, dtype=f32):
 
     if not isinstance(dtype, c_int):
@@ -35,29 +103,69 @@ def identity(d0, d1=None, d2=None, d3=None, dtype=f32):
     clib.af_identity(pointer(out.arr), 4, pointer(dims), dtype)
     return out
 
-def constant(val, d0, d1=None, d2=None, d3=None, dtype=f32):
+def diag(a, num=0, extract=True):
+    out = array()
+    if extract:
+        clib.af_diag_extract(pointer(out.arr), a.arr, c_int(num))
+    else:
+        clib.af_diag_create(pointer(out.arr), a.arr, c_int(num))
+    return out
 
-    if not isinstance(dtype, c_int):
-        raise TypeError("Invalid dtype")
+def join(dim, first, second, third=None, fourth=None):
+    out = array()
+    if (third is None and fourth is None):
+        clib.af_join(pointer(out.arr), dim, first.arr, second.arr)
+    else:
+        c_array_vec = dim4(first, second, 0, 0)
+        num = 2
+        if third is not None:
+            c_array_vec[num] = third.arr
+            num+=1
+        if fourth is not None:
+            c_array_vec[num] = fourth.arr
+            num+=1
+
+        clib.af_join_many(pointer(out.arr), dim, num, pointer(c_array_vec))
 
+
+def tile(a, d0, d1=1, d2=1, d3=1):
+    out = array()
+    clib.af_tile(pointer(out.arr), a.arr, d0, d1, d2, d3)
+    return out
+
+
+def reorder(a, d0=1, d1=0, d2=2, d3=3):
+    out = array()
+    clib.af_reorder(pointer(out.arr), a.arr, d0, d1, d2, d3)
+    return out
+
+def shift(a, d0, d1=0, d2=0, d3=0):
+    out = array()
+    clib.af_shift(pointer(out.arr), a.arr, d0, d1, d2, d3)
+    return out
+
+def moddims(a, d0, d1=1, d2=1, d3=1):
     out = array()
     dims = dim4(d0, d1, d2, d3)
+    clib.af_moddims(pointer(out.arr), a.arr, 4, pointer(dims))
+    return out
 
-    if isinstance(val, complex):
-        c_real = c_double(val.real)
-        c_imag = c_double(val.imag)
+def flat(a):
+    out = array()
+    clib.af_flat(pointer(out.arr), a.arr)
+    return out
 
-        if (dtype != c32 and dtype != c64):
-            dtype = c32
+def flip(a, dim=0):
+    out = array()
+    clib.af_flip(pointer(out.arr), a.arr, c_int(dim))
+    return out
 
-        clib.af_constant_complex(pointer(out.arr), c_real, c_imag, 4, pointer(dims), dtype)
-    elif dtype == s64:
-        c_val = c_longlong(val.real)
-        clib.af_constant_long(pointer(out.arr), c_val, 4, pointer(dims))
-    elif dtype == u64:
-        c_val = c_ulonglong(val.real)
-        clib.af_constant_ulong(pointer(out.arr), c_val, 4, pointer(dims))
-    else:
-        c_val = c_double(val)
-        clib.af_constant(pointer(out.arr), c_val, 4, pointer(dims), dtype)
+def lower(a, is_unit_diag=False):
+    out = array()
+    clib.af_lower(pointer(out.arr), a.arr, is_unit_diag)
+    return out
+
+def upper(a, is_unit_diag=False):
+    out = array()
+    clib.af_upper(pointer(out.arr), a.arr, is_unit_diag)
     return out

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