1 #ifndef _VKTMESHSHADERUTIL_HPP
2 #define _VKTMESHSHADERUTIL_HPP
3 /*------------------------------------------------------------------------
4 * Vulkan Conformance Tests
5 * ------------------------
6 *
7 * Copyright (c) 2021 The Khronos Group Inc.
8 * Copyright (c) 2021 Valve Corporation.
9 *
10 * Licensed under the Apache License, Version 2.0 (the "License");
11 * you may not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
13 *
14 * http://www.apache.org/licenses/LICENSE-2.0
15 *
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS,
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
21 *
22 *//*!
23 * \file
24 * \brief Mesh Shader Utility Code
25 *//*--------------------------------------------------------------------*/
26
27 #include "vktTestCase.hpp"
28
29 #include "vkDefs.hpp"
30
31 #include "deSTLUtil.hpp"
32
33 #include <vector>
34
35 namespace vkt
36 {
37 namespace MeshShader
38 {
39
40 // Primitive shading rate cases.
41 enum class FragmentSize
42 {
43 SIZE_2X2 = 0,
44 SIZE_2X1 = 1,
45 SIZE_1X1 = 2,
46 SIZE_COUNT = 3,
47 };
48
49 using FragmentSizeVector = std::vector<FragmentSize>;
50
51 // Get the block extent according to the fragment size.
52 vk::VkExtent2D getShadingRateSize (FragmentSize fragmentSize);
53
54 // Returns a shading rate size that does not match the given fragment sizes.
55 template <typename Iterator>
getBadShadingRateSize(Iterator itBegin, Iterator itEnd)56 FragmentSize getBadShadingRateSize (Iterator itBegin, Iterator itEnd)
57 {
58 const auto fsCount = static_cast<int>(FragmentSize::SIZE_COUNT);
59
60 for (int i = 0; i < fsCount; ++i)
61 {
62 const auto fs = static_cast<FragmentSize>(i);
63 if (!de::contains(itBegin, itEnd, fs))
64 return fs;
65 }
66
67 DE_ASSERT(false);
68 return FragmentSize::SIZE_COUNT;
69 }
70
71 // GLSL representation of the given fragment size.
72 std::string getGLSLShadingRateMask (FragmentSize fragmentSize);
73
74 // GLSL/SPV value of the given mask.
75 int getSPVShadingRateValue (FragmentSize fragmentSize);
76
77 // Basic feature check (NV version)
78 void checkTaskMeshShaderSupportNV (Context& context, bool requireTask, bool requireMesh);
79
80 // Basic feature check (EXT version)
81 void checkTaskMeshShaderSupportEXT (Context& context, bool requireTask, bool requireMesh);
82
83 // Get the right SPIR-V build options for the EXT.
84 vk::ShaderBuildOptions getMinMeshEXTBuildOptions (uint32_t vulkanVersion, uint32_t flags = 0u);
85 vk::SpirVAsmBuildOptions getMinMeshEXTSpvBuildOptions (uint32_t vulkanVersion, bool allowMaintenance4 = false);
86
87 }
88 }
89
90 #endif // _VKTMESHSHADERUTIL_HPP
91