1 /*------------------------------------------------------------------------
2 * Vulkan Conformance Tests
3 * ------------------------
4 *
5 * Copyright (c) 2016 The Khronos Group Inc.
6 *
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 *
19 *//*!
20 * \file
21 * \brief Texture utility class
22 *//*--------------------------------------------------------------------*/
23
24 #include "vktImageTexture.hpp"
25
26 namespace vkt
27 {
28 namespace image
29 {
30
Texture(const ImageType type_,const tcu::IVec3 & layerSize_,const int layers)31 Texture::Texture (const ImageType type_, const tcu::IVec3& layerSize_, const int layers)
32 : m_layerSize (layerSize_)
33 , m_type (type_)
34 , m_numLayers (layers)
35 {
36 DE_ASSERT(m_numLayers >= 1);
37 DE_ASSERT(m_layerSize.x() >= 1 && m_layerSize.y() >= 1 && m_layerSize.z() >= 1);
38
39 switch (type_)
40 {
41 case IMAGE_TYPE_1D:
42 case IMAGE_TYPE_BUFFER:
43 DE_ASSERT(m_numLayers == 1);
44 DE_ASSERT(m_layerSize.y() == 1 && m_layerSize.z() == 1);
45 break;
46
47 case IMAGE_TYPE_1D_ARRAY:
48 DE_ASSERT(m_layerSize.y() == 1 && m_layerSize.z() == 1);
49 break;
50
51 case IMAGE_TYPE_2D:
52 DE_ASSERT(m_numLayers == 1);
53 DE_ASSERT(m_layerSize.z() == 1);
54 break;
55
56 case IMAGE_TYPE_2D_ARRAY:
57 DE_ASSERT(m_layerSize.z() == 1);
58 break;
59
60 case IMAGE_TYPE_CUBE:
61 DE_ASSERT(m_numLayers == 6);
62 DE_ASSERT(m_layerSize.z() == 1);
63 break;
64
65 case IMAGE_TYPE_CUBE_ARRAY:
66 DE_ASSERT(m_numLayers >= 6 && m_numLayers % 6 == 0);
67 DE_ASSERT(m_layerSize.z() == 1);
68 break;
69
70 case IMAGE_TYPE_3D:
71 DE_ASSERT(m_numLayers == 1);
72 break;
73
74 default:
75 DE_FATAL("Internal error");
76 break;
77 }
78 }
79
size(void) const80 tcu::IVec3 Texture::size (void) const
81 {
82 switch (m_type)
83 {
84 case IMAGE_TYPE_1D:
85 case IMAGE_TYPE_BUFFER:
86 case IMAGE_TYPE_2D:
87 case IMAGE_TYPE_3D:
88 return m_layerSize;
89
90 case IMAGE_TYPE_1D_ARRAY:
91 return tcu::IVec3(m_layerSize.x(), m_numLayers, 1);
92
93 case IMAGE_TYPE_2D_ARRAY:
94 case IMAGE_TYPE_CUBE:
95 case IMAGE_TYPE_CUBE_ARRAY:
96 return tcu::IVec3(m_layerSize.x(), m_layerSize.y(), m_numLayers);
97
98 default:
99 DE_FATAL("Internal error");
100 return tcu::IVec3();
101 }
102 }
103
dimension(void) const104 int Texture::dimension (void) const
105 {
106 switch (m_type)
107 {
108 case IMAGE_TYPE_1D:
109 case IMAGE_TYPE_BUFFER:
110 return 1;
111
112 case IMAGE_TYPE_1D_ARRAY:
113 case IMAGE_TYPE_2D:
114 return 2;
115
116 case IMAGE_TYPE_2D_ARRAY:
117 case IMAGE_TYPE_CUBE:
118 case IMAGE_TYPE_CUBE_ARRAY:
119 case IMAGE_TYPE_3D:
120 return 3;
121
122 default:
123 DE_FATAL("Internal error");
124 return 0;
125 }
126 }
127
layerDimension(void) const128 int Texture::layerDimension (void) const
129 {
130 switch (m_type)
131 {
132 case IMAGE_TYPE_1D:
133 case IMAGE_TYPE_BUFFER:
134 case IMAGE_TYPE_1D_ARRAY:
135 return 1;
136
137 case IMAGE_TYPE_2D:
138 case IMAGE_TYPE_2D_ARRAY:
139 case IMAGE_TYPE_CUBE:
140 case IMAGE_TYPE_CUBE_ARRAY:
141 return 2;
142
143 case IMAGE_TYPE_3D:
144 return 3;
145
146 default:
147 DE_FATAL("Internal error");
148 return 0;
149 }
150 }
151
152 } // image
153 } // vkt
154