summaryrefslogtreecommitdiff
path: root/gfx/angle/src/compiler/translator/Cache.h
blob: 9a5607f2445de5084f21b1c0618260875cb309c5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
//
// Copyright (c) 2015 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//

// Cache.h: Implements a cache for various commonly created objects.

#ifndef COMPILER_TRANSLATOR_CACHE_H_
#define COMPILER_TRANSLATOR_CACHE_H_

#include <stdint.h>
#include <string.h>
#include <map>

#include "compiler/translator/Types.h"
#include "compiler/translator/PoolAlloc.h"

namespace sh
{

class TCache
{
  public:

    static void initialize();
    static void destroy();

    static const TType *getType(TBasicType basicType,
                                TPrecision precision)
    {
        return getType(basicType, precision, EvqTemporary,
                       1, 1);
    }
    static const TType *getType(TBasicType basicType,
                                unsigned char primarySize = 1,
                                unsigned char secondarySize = 1)
    {
        return getType(basicType, EbpUndefined, EvqGlobal,
                       primarySize, secondarySize);
    }
    static const TType *getType(TBasicType basicType,
                                TQualifier qualifier,
                                unsigned char primarySize = 1,
                                unsigned char secondarySize = 1)
    {
        return getType(basicType, EbpUndefined, qualifier,
                       primarySize, secondarySize);
    }
    static const TType *getType(TBasicType basicType,
                                TPrecision precision,
                                TQualifier qualifier,
                                unsigned char primarySize,
                                unsigned char secondarySize);

  private:
    TCache()
    {
    }

    union TypeKey
    {
        TypeKey(TBasicType basicType,
                TPrecision precision,
                TQualifier qualifier,
                unsigned char primarySize,
                unsigned char secondarySize);

        typedef uint8_t EnumComponentType;
        struct
        {
            EnumComponentType basicType;
            EnumComponentType precision;
            EnumComponentType qualifier;
            unsigned char primarySize;
            unsigned char secondarySize;
        } components;
        uint64_t value;

        bool operator < (const TypeKey &other) const
        {
            return value < other.value;
        }
    };
    typedef std::map<TypeKey, const TType*> TypeMap;

    TypeMap mTypes;
    TPoolAllocator mAllocator;

    static TCache *sCache;
};

}  // namespace sh

#endif  // COMPILER_TRANSLATOR_CACHE_H_