xref: /aosp_15_r20/external/XNNPACK/src/xnnpack/fft.h (revision 4bdc94577ba0e567308109d787f7fec7b531ce36)
1 // Copyright 2022 Google LLC
2 //
3 // This source code is licensed under the BSD-style license found in the
4 // LICENSE file in the root directory of this source tree.
5 
6 #pragma once
7 
8 #include <stddef.h>
9 #include <stdint.h>
10 
11 #include <xnnpack/common.h>
12 
13 #ifdef __cplusplus
14 extern "C" {
15 #endif
16 
17 
18 #define DECLARE_CS16_BFLY4_UKERNEL_FUNCTION(fn_name) \
19   XNN_INTERNAL void fn_name(                         \
20     size_t samples,                                  \
21     int16_t* data,                                   \
22     const size_t stride,                             \
23     const int16_t* twiddle);
24 
25 DECLARE_CS16_BFLY4_UKERNEL_FUNCTION(xnn_cs16_bfly4_ukernel__scalar_x1)
26 DECLARE_CS16_BFLY4_UKERNEL_FUNCTION(xnn_cs16_bfly4_ukernel__scalar_x2)
27 DECLARE_CS16_BFLY4_UKERNEL_FUNCTION(xnn_cs16_bfly4_ukernel__scalar_x3)
28 DECLARE_CS16_BFLY4_UKERNEL_FUNCTION(xnn_cs16_bfly4_ukernel__scalar_x4)
29 DECLARE_CS16_BFLY4_UKERNEL_FUNCTION(xnn_cs16_bfly4_samples1_ukernel__scalar)
30 DECLARE_CS16_BFLY4_UKERNEL_FUNCTION(xnn_cs16_bfly4_samples1_ukernel__neon)
31 
32 #define DECLARE_CS16_FFTR_UKERNEL_FUNCTION(fn_name) \
33   XNN_INTERNAL void fn_name(                        \
34     size_t samples,                                 \
35     int16_t* data,                                  \
36     const int16_t* twiddle);
37 
38 DECLARE_CS16_FFTR_UKERNEL_FUNCTION(xnn_cs16_fftr_ukernel__scalar_x1)
39 DECLARE_CS16_FFTR_UKERNEL_FUNCTION(xnn_cs16_fftr_ukernel__scalar_x2)
40 DECLARE_CS16_FFTR_UKERNEL_FUNCTION(xnn_cs16_fftr_ukernel__scalar_x3)
41 DECLARE_CS16_FFTR_UKERNEL_FUNCTION(xnn_cs16_fftr_ukernel__scalar_x4)
42 
43 #ifdef __cplusplus
44 }  // extern "C"
45 #endif
46