Halide 19.0.0
Halide compiler and libraries
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Extern.h
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1#ifndef HALIDE_EXTERN_H
2#define HALIDE_EXTERN_H
3
4/** \file
5 *
6 * Convenience macros that lift functions that take C types into
7 * functions that take and return exprs, and call the original
8 * function at runtime under the hood. See test/c_function.cpp for
9 * example usage.
10 */
11
12#include "Debug.h"
13
14#define _halide_check_arg_type(t, name, e, n) \
15 _halide_user_assert(e.type() == t) << "Type mismatch for argument " << n << " to extern function " << #name << ". Type expected is " << t << " but the argument " << e << " has type " << e.type() << ".\n";
16
17#define HalideExtern_1(rt, name, t1) \
18 Halide::Expr name(const Halide::Expr &a1) { \
19 _halide_check_arg_type(Halide::type_of<t1>(), name, a1, 1); \
20 return Halide::Internal::Call::make(Halide::type_of<rt>(), #name, {a1}, Halide::Internal::Call::Extern); \
21 }
22
23#define HalideExtern_2(rt, name, t1, t2) \
24 Halide::Expr name(const Halide::Expr &a1, const Halide::Expr &a2) { \
25 _halide_check_arg_type(Halide::type_of<t1>(), name, a1, 1); \
26 _halide_check_arg_type(Halide::type_of<t2>(), name, a2, 2); \
27 return Halide::Internal::Call::make(Halide::type_of<rt>(), #name, {a1, a2}, Halide::Internal::Call::Extern); \
28 }
29
30#define HalideExtern_3(rt, name, t1, t2, t3) \
31 Halide::Expr name(const Halide::Expr &a1, const Halide::Expr &a2, const Halide::Expr &a3) { \
32 _halide_check_arg_type(Halide::type_of<t1>(), name, a1, 1); \
33 _halide_check_arg_type(Halide::type_of<t2>(), name, a2, 2); \
34 _halide_check_arg_type(Halide::type_of<t3>(), name, a3, 3); \
35 return Halide::Internal::Call::make(Halide::type_of<rt>(), #name, {a1, a2, a3}, Halide::Internal::Call::Extern); \
36 }
37
38#define HalideExtern_4(rt, name, t1, t2, t3, t4) \
39 Halide::Expr name(const Halide::Expr &a1, const Halide::Expr &a2, const Halide::Expr &a3, const Halide::Expr &a4) { \
40 _halide_check_arg_type(Halide::type_of<t1>(), name, a1, 1); \
41 _halide_check_arg_type(Halide::type_of<t2>(), name, a2, 2); \
42 _halide_check_arg_type(Halide::type_of<t3>(), name, a3, 3); \
43 _halide_check_arg_type(Halide::type_of<t4>(), name, a4, 4); \
44 return Halide::Internal::Call::make(Halide::type_of<rt>(), #name, {a1, a2, a3, a4}, Halide::Internal::Call::Extern); \
45 }
46
47#define HalideExtern_5(rt, name, t1, t2, t3, t4, t5) \
48 Halide::Expr name(const Halide::Expr &a1, const Halide::Expr &a2, const Halide::Expr &a3, const Halide::Expr &a4, const Halide::Expr &a5) { \
49 _halide_check_arg_type(Halide::type_of<t1>(), name, a1, 1); \
50 _halide_check_arg_type(Halide::type_of<t2>(), name, a2, 2); \
51 _halide_check_arg_type(Halide::type_of<t3>(), name, a3, 3); \
52 _halide_check_arg_type(Halide::type_of<t4>(), name, a4, 4); \
53 _halide_check_arg_type(Halide::type_of<t5>(), name, a5, 5); \
54 return Halide::Internal::Call::make(Halide::type_of<rt>(), #name, {a1, a2, a3, a4, a5}, Halide::Internal::Call::Extern); \
55 }
56
57#define HalidePureExtern_1(rt, name, t1) \
58 Halide::Expr name(const Halide::Expr &a1) { \
59 _halide_check_arg_type(Halide::type_of<t1>(), name, a1, 1); \
60 return Halide::Internal::Call::make(Halide::type_of<rt>(), #name, {a1}, Halide::Internal::Call::PureExtern); \
61 }
62
63#define HalidePureExtern_2(rt, name, t1, t2) \
64 Halide::Expr name(const Halide::Expr &a1, const Halide::Expr &a2) { \
65 _halide_check_arg_type(Halide::type_of<t1>(), name, a1, 1); \
66 _halide_check_arg_type(Halide::type_of<t2>(), name, a2, 2); \
67 return Halide::Internal::Call::make(Halide::type_of<rt>(), #name, {a1, a2}, Halide::Internal::Call::PureExtern); \
68 }
69
70#define HalidePureExtern_3(rt, name, t1, t2, t3) \
71 Halide::Expr name(const Halide::Expr &a1, const Halide::Expr &a2, const Halide::Expr &a3) { \
72 _halide_check_arg_type(Halide::type_of<t1>(), name, a1, 1); \
73 _halide_check_arg_type(Halide::type_of<t2>(), name, a2, 2); \
74 _halide_check_arg_type(Halide::type_of<t3>(), name, a3, 3); \
75 return Halide::Internal::Call::make(Halide::type_of<rt>(), #name, {a1, a2, a3}, Halide::Internal::Call::PureExtern); \
76 }
77
78#define HalidePureExtern_4(rt, name, t1, t2, t3, t4) \
79 Halide::Expr name(const Halide::Expr &a1, const Halide::Expr &a2, const Halide::Expr &a3, const Halide::Expr &a4) { \
80 _halide_check_arg_type(Halide::type_of<t1>(), name, a1, 1); \
81 _halide_check_arg_type(Halide::type_of<t2>(), name, a2, 2); \
82 _halide_check_arg_type(Halide::type_of<t3>(), name, a3, 3); \
83 _halide_check_arg_type(Halide::type_of<t4>(), name, a4, 4); \
84 return Halide::Internal::Call::make(Halide::type_of<rt>(), #name, {a1, a2, a3, a4}, Halide::Internal::Call::PureExtern); \
85 }
86
87#define HalidePureExtern_5(rt, name, t1, t2, t3, t4, t5) \
88 Halide::Expr name(const Halide::Expr &a1, const Halide::Expr &a2, const Halide::Expr &a3, const Halide::Expr &a4, const Halide::Expr &a5) { \
89 _halide_check_arg_type(Halide::type_of<t1>(), name, a1, 1); \
90 _halide_check_arg_type(Halide::type_of<t2>(), name, a2, 2); \
91 _halide_check_arg_type(Halide::type_of<t3>(), name, a3, 3); \
92 _halide_check_arg_type(Halide::type_of<t4>(), name, a4, 4); \
93 _halide_check_arg_type(Halide::type_of<t5>(), name, a5, 5); \
94 return Halide::Internal::Call::make(Halide::type_of<rt>(), #name, {a1, a2, a3, a4, a5}, Halide::Internal::Call::PureExtern); \
95 }
96#endif
Debug.h
Defines functions for debug logging during code generation.