1 #ifndef STRATEGYSELECTOR_H_
2 #define STRATEGYSELECTOR_H_
3 /*****************************************************************************
4  * This file is part of Kvazaar HEVC encoder.
5  *
6  * Copyright (c) 2021, Tampere University, ITU/ISO/IEC, project contributors
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10  * are permitted provided that the following conditions are met:
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13  *   list of conditions and the following disclaimer.
14  *
15  * * Redistributions in binary form must reproduce the above copyright notice, this
16  *   list of conditions and the following disclaimer in the documentation and/or
17  *   other materials provided with the distribution.
18  *
19  * * Neither the name of the Tampere University or ITU/ISO/IEC nor the names of its
20  *   contributors may be used to endorse or promote products derived from
21  *   this software without specific prior written permission.
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23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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33  ****************************************************************************/
34 
35 /**
36  * \ingroup Optimization
37  * \file
38  * Dynamic dispatch based on cpuid.
39  */
40 
41 #include "global.h" // IWYU pragma: keep
42 
43 #if defined(KVZ_DEBUG) && !defined(DEBUG_STRATEGYSELECTOR)
44 # define DEBUG_STRATEGYSELECTOR
45 #endif
46 
47 typedef struct {
48   const char *type; //Type of the function, usually its name
49   const char *strategy_name; //Name of the strategy (e.g. sse2)
50   unsigned int priority; //Priority. 0 = lowest (default strategy)
51   void *fptr; //Pointer to the function
52 } strategy_t;
53 
54 typedef struct {
55   unsigned int count;
56   unsigned int allocated;//How much memory is allocated
57   strategy_t* strategies;
58 } strategy_list_t;
59 
60 #define STRATEGY_LIST_ALLOC_SIZE 16
61 
62 typedef struct {
63   const char *strategy_type;
64   void **fptr;
65 } strategy_to_select_t;
66 
67 typedef struct {
68   struct {
69     int mmx;
70     int sse;
71     int sse2;
72     int sse3;
73     int ssse3;
74     int sse41;
75     int sse42;
76     int avx;
77     int avx2;
78 
79     bool hyper_threading;
80   } intel_flags;
81 
82   struct {
83     int altivec;
84   } powerpc_flags;
85 
86   struct {
87     int neon;
88   } arm_flags;
89 
90   int logical_cpu_count;
91   int physical_cpu_count;
92 } hardware_flags_t;
93 
94 extern hardware_flags_t kvz_g_hardware_flags;
95 extern hardware_flags_t kvz_g_strategies_in_use;
96 extern hardware_flags_t kvz_g_strategies_available;
97 
98 int kvz_strategyselector_init(int32_t cpuid, uint8_t bitdepth);
99 int kvz_strategyselector_register(void *opaque, const char *type, const char *strategy_name, int priority, void *fptr);
100 
101 
102 //Strategy to include
103 #include "strategies/strategies-nal.h"
104 #include "strategies/strategies-picture.h"
105 #include "strategies/strategies-dct.h"
106 #include "strategies/strategies-ipol.h"
107 #include "strategies/strategies-quant.h"
108 #include "strategies/strategies-intra.h"
109 #include "strategies/strategies-sao.h"
110 #include "strategies/strategies-encode.h"
111 
112 static const strategy_to_select_t strategies_to_select[] = {
113   STRATEGIES_NAL_EXPORTS
114   STRATEGIES_PICTURE_EXPORTS
115   STRATEGIES_DCT_EXPORTS
116   STRATEGIES_IPOL_EXPORTS
117   STRATEGIES_QUANT_EXPORTS
118   STRATEGIES_INTRA_EXPORTS
119   STRATEGIES_SAO_EXPORTS
120   STRATEGIES_ENCODE_EXPORTS
121   { NULL, NULL },
122 };
123 
124 #endif //STRATEGYSELECTOR_H_
125