summaryrefslogtreecommitdiffstats
path: root/src/3rdparty/angle/src/libANGLE/Uniform.cpp
blob: bfae3c014fffa0368d643f12db148aa87815258b (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
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
//
// Copyright (c) 2010-2013 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.
//

#include "libANGLE/Uniform.h"

#include "common/utilities.h"

#include <cstring>

namespace gl
{

LinkedUniform::LinkedUniform()
    : blockIndex(-1), blockInfo(sh::BlockMemberInfo::getDefaultBlockInfo())
{
}

LinkedUniform::LinkedUniform(GLenum typeIn,
                             GLenum precisionIn,
                             const std::string &nameIn,
                             unsigned int arraySizeIn,
                             const int blockIndexIn,
                             const sh::BlockMemberInfo &blockInfoIn)
    : blockIndex(blockIndexIn), blockInfo(blockInfoIn)
{
    type      = typeIn;
    precision = precisionIn;
    name      = nameIn;
    arraySize = arraySizeIn;
}

LinkedUniform::LinkedUniform(const sh::Uniform &uniform)
    : sh::Uniform(uniform), blockIndex(-1), blockInfo(sh::BlockMemberInfo::getDefaultBlockInfo())
{
}

LinkedUniform::LinkedUniform(const LinkedUniform &uniform)
    : sh::Uniform(uniform), blockIndex(uniform.blockIndex), blockInfo(uniform.blockInfo)
{
    // This function is not intended to be called during runtime.
    ASSERT(uniform.mLazyData.empty());
}

LinkedUniform &LinkedUniform::operator=(const LinkedUniform &uniform)
{
    // This function is not intended to be called during runtime.
    ASSERT(uniform.mLazyData.empty());

    sh::Uniform::operator=(uniform);
    blockIndex           = uniform.blockIndex;
    blockInfo            = uniform.blockInfo;

    return *this;
}

LinkedUniform::~LinkedUniform()
{
}

bool LinkedUniform::isInDefaultBlock() const
{
    return blockIndex == -1;
}

size_t LinkedUniform::dataSize() const
{
    ASSERT(type != GL_STRUCT_ANGLEX);
    if (mLazyData.empty())
    {
        mLazyData.resize(VariableExternalSize(type) * elementCount());
        ASSERT(!mLazyData.empty());
    }

    return mLazyData.size();
}

uint8_t *LinkedUniform::data()
{
    if (mLazyData.empty())
    {
        // dataSize() will init the data store.
        size_t size = dataSize();
        memset(mLazyData.data(), 0, size);
    }

    return mLazyData.data();
}

const uint8_t *LinkedUniform::data() const
{
    return const_cast<LinkedUniform *>(this)->data();
}

bool LinkedUniform::isSampler() const
{
    return IsSamplerType(type);
}

bool LinkedUniform::isField() const
{
    return name.find('.') != std::string::npos;
}

size_t LinkedUniform::getElementSize() const
{
    return VariableExternalSize(type);
}

uint8_t *LinkedUniform::getDataPtrToElement(size_t elementIndex)
{
    ASSERT((!isArray() && elementIndex == 0) || (isArray() && elementIndex < arraySize));
    return data() + getElementSize() * elementIndex;
}

const uint8_t *LinkedUniform::getDataPtrToElement(size_t elementIndex) const
{
    return const_cast<LinkedUniform *>(this)->getDataPtrToElement(elementIndex);
}

UniformBlock::UniformBlock()
    : isArray(false), arrayElement(0), dataSize(0), vertexStaticUse(false), fragmentStaticUse(false)
{
}

UniformBlock::UniformBlock(const std::string &nameIn, bool isArrayIn, unsigned int arrayElementIn)
    : name(nameIn),
      isArray(isArrayIn),
      arrayElement(arrayElementIn),
      dataSize(0),
      vertexStaticUse(false),
      fragmentStaticUse(false)
{
}

std::string UniformBlock::nameWithArrayIndex() const
{
    std::stringstream fullNameStr;
    fullNameStr << name;
    if (isArray)
    {
        fullNameStr << "[" << arrayElement << "]";
    }

    return fullNameStr.str();
}
}