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1 /*
2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 
12 #ifndef __INC_IDCT_H
13 #define __INC_IDCT_H
14 
15 #define prototype_second_order(sym) \
16     void sym(short *input, short *output)
17 
18 #define prototype_idct(sym) \
19     void sym(short *input, short *output, int pitch)
20 
21 #define prototype_idct_scalar_add(sym) \
22     void sym(short input, \
23              unsigned char *pred, unsigned char *output, \
24              int pitch, int stride)
25 
26 #if ARCH_X86 || ARCH_X86_64
27 #include "x86/idct_x86.h"
28 #endif
29 
30 #if ARCH_ARM
31 #include "arm/idct_arm.h"
32 #endif
33 
34 #ifndef vp8_idct_idct1
35 #define vp8_idct_idct1 vp8_short_idct4x4llm_1_c
36 #endif
37 extern prototype_idct(vp8_idct_idct1);
38 
39 #ifndef vp8_idct_idct16
40 #define vp8_idct_idct16 vp8_short_idct4x4llm_c
41 #endif
42 extern prototype_idct(vp8_idct_idct16);
43 
44 #ifndef vp8_idct_idct1_scalar_add
45 #define vp8_idct_idct1_scalar_add vp8_dc_only_idct_add_c
46 #endif
47 extern prototype_idct_scalar_add(vp8_idct_idct1_scalar_add);
48 
49 
50 #ifndef vp8_idct_iwalsh1
51 #define vp8_idct_iwalsh1 vp8_short_inv_walsh4x4_1_c
52 #endif
53 extern prototype_second_order(vp8_idct_iwalsh1);
54 
55 #ifndef vp8_idct_iwalsh16
56 #define vp8_idct_iwalsh16 vp8_short_inv_walsh4x4_c
57 #endif
58 extern prototype_second_order(vp8_idct_iwalsh16);
59 
60 typedef prototype_idct((*vp8_idct_fn_t));
61 typedef prototype_idct_scalar_add((*vp8_idct_scalar_add_fn_t));
62 typedef prototype_second_order((*vp8_second_order_fn_t));
63 
64 typedef struct
65 {
66     vp8_idct_fn_t            idct1;
67     vp8_idct_fn_t            idct16;
68     vp8_idct_scalar_add_fn_t idct1_scalar_add;
69 
70     vp8_second_order_fn_t iwalsh1;
71     vp8_second_order_fn_t iwalsh16;
72 } vp8_idct_rtcd_vtable_t;
73 
74 #if CONFIG_RUNTIME_CPU_DETECT
75 #define IDCT_INVOKE(ctx,fn) (ctx)->fn
76 #else
77 #define IDCT_INVOKE(ctx,fn) vp8_idct_##fn
78 #endif
79 
80 #endif
81