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1 /* Copyright (c) 2015-2016 The Khronos Group Inc.
2  * Copyright (c) 2015-2016 Valve Corporation
3  * Copyright (c) 2015-2016 LunarG, Inc.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a copy
6  * of this software and/or associated documentation files (the "Materials"), to
7  * deal in the Materials without restriction, including without limitation the
8  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
9  * sell copies of the Materials, and to permit persons to whom the Materials
10  * are furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice(s) and this permission notice shall be included
13  * in all copies or substantial portions of the Materials.
14  *
15  * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18  *
19  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE
22  * USE OR OTHER DEALINGS IN THE MATERIALS
23  *
24  * Author: Mark Lobodzinski <mark@lunarg.com>
25  *
26  */
27 
28 #include <string.h>
29 #include <string>
30 #include <vector>
31 #include "vulkan/vulkan.h"
32 #include "vk_layer_config.h"
33 #include "vk_layer_utils.h"
34 
35 typedef struct _VULKAN_FORMAT_INFO {
36     size_t size;
37     uint32_t channel_count;
38     VkFormatCompatibilityClass format_class;
39 } VULKAN_FORMAT_INFO;
40 
41 // Set up data structure with number of bytes and number of channels
42 // for each Vulkan format.
43 static const VULKAN_FORMAT_INFO vk_format_table[VK_FORMAT_RANGE_SIZE] = {
44     {0, 0, VK_FORMAT_COMPATIBILITY_CLASS_NONE_BIT},          //    [VK_FORMAT_UNDEFINED]
45     {1, 2, VK_FORMAT_COMPATIBILITY_CLASS_8_BIT},             //    [VK_FORMAT_R4G4_UNORM_PACK8]
46     {2, 4, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R4G4B4A4_UNORM_PACK16]
47     {2, 4, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_B4G4R4A4_UNORM_PACK16]
48     {2, 3, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R5G6B5_UNORM_PACK16]
49     {2, 3, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_B5G6R5_UNORM_PACK16]
50     {2, 4, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R5G5B5A1_UNORM_PACK16]
51     {2, 4, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_B5G5R5A1_UNORM_PACK16]
52     {2, 4, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_A1R5G5B5_UNORM_PACK16]
53     {1, 1, VK_FORMAT_COMPATIBILITY_CLASS_8_BIT},             //    [VK_FORMAT_R8_UNORM]
54     {1, 1, VK_FORMAT_COMPATIBILITY_CLASS_8_BIT},             //    [VK_FORMAT_R8_SNORM]
55     {1, 1, VK_FORMAT_COMPATIBILITY_CLASS_8_BIT},             //    [VK_FORMAT_R8_USCALED]
56     {1, 1, VK_FORMAT_COMPATIBILITY_CLASS_8_BIT},             //    [VK_FORMAT_R8_SSCALED]
57     {1, 1, VK_FORMAT_COMPATIBILITY_CLASS_8_BIT},             //    [VK_FORMAT_R8_UINT]
58     {1, 1, VK_FORMAT_COMPATIBILITY_CLASS_8_BIT},             //    [VK_FORMAT_R8_SINT]
59     {1, 1, VK_FORMAT_COMPATIBILITY_CLASS_8_BIT},             //    [VK_FORMAT_R8_SRGB]
60     {2, 2, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R8G8_UNORM]
61     {2, 2, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R8G8_SNORM]
62     {2, 2, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R8G8_USCALED]
63     {2, 2, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R8G8_SSCALED]
64     {2, 2, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R8G8_UINT]
65     {2, 2, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R8G8_SINT]
66     {2, 2, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R8G8_SRGB]
67     {3, 3, VK_FORMAT_COMPATIBILITY_CLASS_24_BIT},            //    [VK_FORMAT_R8G8B8_UNORM]
68     {3, 3, VK_FORMAT_COMPATIBILITY_CLASS_24_BIT},            //    [VK_FORMAT_R8G8B8_SNORM]
69     {3, 3, VK_FORMAT_COMPATIBILITY_CLASS_24_BIT},            //    [VK_FORMAT_R8G8B8_USCALED]
70     {3, 3, VK_FORMAT_COMPATIBILITY_CLASS_24_BIT},            //    [VK_FORMAT_R8G8B8_SSCALED]
71     {3, 3, VK_FORMAT_COMPATIBILITY_CLASS_24_BIT},            //    [VK_FORMAT_R8G8B8_UINT]
72     {3, 3, VK_FORMAT_COMPATIBILITY_CLASS_24_BIT},            //    [VK_FORMAT_R8G8B8_SINT]
73     {3, 3, VK_FORMAT_COMPATIBILITY_CLASS_24_BIT},            //    [VK_FORMAT_R8G8B8_SRGB]
74     {3, 3, VK_FORMAT_COMPATIBILITY_CLASS_24_BIT},            //    [VK_FORMAT_B8G8R8_UNORM]
75     {3, 3, VK_FORMAT_COMPATIBILITY_CLASS_24_BIT},            //    [VK_FORMAT_B8G8R8_SNORM]
76     {3, 3, VK_FORMAT_COMPATIBILITY_CLASS_24_BIT},            //    [VK_FORMAT_B8G8R8_USCALED]
77     {3, 3, VK_FORMAT_COMPATIBILITY_CLASS_24_BIT},            //    [VK_FORMAT_B8G8R8_SSCALED]
78     {3, 3, VK_FORMAT_COMPATIBILITY_CLASS_24_BIT},            //    [VK_FORMAT_B8G8R8_UINT]
79     {3, 3, VK_FORMAT_COMPATIBILITY_CLASS_24_BIT},            //    [VK_FORMAT_B8G8R8_SINT]
80     {3, 3, VK_FORMAT_COMPATIBILITY_CLASS_24_BIT},            //    [VK_FORMAT_B8G8R8_SRGB]
81     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R8G8B8A8_UNORM]
82     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R8G8B8A8_SNORM]
83     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R8G8B8A8_USCALED]
84     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R8G8B8A8_SSCALED]
85     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R8G8B8A8_UINT]
86     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R8G8B8A8_SINT]
87     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R8G8B8A8_SRGB]
88     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_B8G8R8A8_UNORM]
89     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_B8G8R8A8_SNORM]
90     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_B8G8R8A8_USCALED]
91     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_B8G8R8A8_SSCALED]
92     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_B8G8R8A8_UINT]
93     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_B8G8R8A8_SINT]
94     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_B8G8R8A8_SRGB]
95     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A8B8G8R8_UNORM_PACK32]
96     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A8B8G8R8_SNORM_PACK32]
97     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A8B8G8R8_USCALED_PACK32]
98     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A8B8G8R8_SSCALED_PACK32]
99     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A8B8G8R8_UINT_PACK32]
100     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A8B8G8R8_SINT_PACK32]
101     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_B8G8R8A8_SRGB_PACK32]
102     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A2R10G10B10_UNORM_PACK32]
103     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A2R10G10B10_SNORM_PACK32]
104     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A2R10G10B10_USCALED_PACK32]
105     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A2R10G10B10_SSCALED_PACK32]
106     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A2R10G10B10_UINT_PACK32]
107     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A2R10G10B10_SINT_PACK32]
108     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A2B10G10R10_UNORM_PACK32]
109     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A2B10G10R10_SNORM_PACK32]
110     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A2B10G10R10_USCALED_PACK32]
111     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A2B10G10R10_SSCALED_PACK32]
112     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A2B10G10R10_UINT_PACK32]
113     {4, 4, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_A2B10G10R10_SINT_PACK32]
114     {2, 1, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R16_UNORM]
115     {2, 1, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R16_SNORM]
116     {2, 1, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R16_USCALED]
117     {2, 1, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R16_SSCALED]
118     {2, 1, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R16_UINT]
119     {2, 1, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R16_SINT]
120     {2, 1, VK_FORMAT_COMPATIBILITY_CLASS_16_BIT},            //    [VK_FORMAT_R16_SFLOAT]
121     {4, 2, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R16G16_UNORM]
122     {4, 2, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R16G16_SNORM]
123     {4, 2, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R16G16_USCALED]
124     {4, 2, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R16G16_SSCALED]
125     {4, 2, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R16G16_UINT]
126     {4, 2, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R16G16_SINT]
127     {4, 2, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R16G16_SFLOAT]
128     {6, 3, VK_FORMAT_COMPATIBILITY_CLASS_48_BIT},            //    [VK_FORMAT_R16G16B16_UNORM]
129     {6, 3, VK_FORMAT_COMPATIBILITY_CLASS_48_BIT},            //    [VK_FORMAT_R16G16B16_SNORM]
130     {6, 3, VK_FORMAT_COMPATIBILITY_CLASS_48_BIT},            //    [VK_FORMAT_R16G16B16_USCALED]
131     {6, 3, VK_FORMAT_COMPATIBILITY_CLASS_48_BIT},            //    [VK_FORMAT_R16G16B16_SSCALED]
132     {6, 3, VK_FORMAT_COMPATIBILITY_CLASS_48_BIT},            //    [VK_FORMAT_R16G16B16_UINT]
133     {6, 3, VK_FORMAT_COMPATIBILITY_CLASS_48_BIT},            //    [VK_FORMAT_R16G16B16_SINT]
134     {6, 3, VK_FORMAT_COMPATIBILITY_CLASS_48_BIT},            //    [VK_FORMAT_R16G16B16_SFLOAT]
135     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_64_BIT},            //    [VK_FORMAT_R16G16B16A16_UNORM]
136     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_64_BIT},            //    [VK_FORMAT_R16G16B16A16_SNORM]
137     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_64_BIT},            //    [VK_FORMAT_R16G16B16A16_USCALED]
138     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_64_BIT},            //    [VK_FORMAT_R16G16B16A16_SSCALED]
139     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_64_BIT},            //    [VK_FORMAT_R16G16B16A16_UINT]
140     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_64_BIT},            //    [VK_FORMAT_R16G16B16A16_SINT]
141     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_64_BIT},            //    [VK_FORMAT_R16G16B16A16_SFLOAT]
142     {4, 1, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R32_UINT]
143     {4, 1, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R32_SINT]
144     {4, 1, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_R32_SFLOAT]
145     {8, 2, VK_FORMAT_COMPATIBILITY_CLASS_64_BIT},            //    [VK_FORMAT_R32G32_UINT]
146     {8, 2, VK_FORMAT_COMPATIBILITY_CLASS_64_BIT},            //    [VK_FORMAT_R32G32_SINT]
147     {8, 2, VK_FORMAT_COMPATIBILITY_CLASS_64_BIT},            //    [VK_FORMAT_R32G32_SFLOAT]
148     {12, 3, VK_FORMAT_COMPATIBILITY_CLASS_96_BIT},           //    [VK_FORMAT_R32G32B32_UINT]
149     {12, 3, VK_FORMAT_COMPATIBILITY_CLASS_96_BIT},           //    [VK_FORMAT_R32G32B32_SINT]
150     {12, 3, VK_FORMAT_COMPATIBILITY_CLASS_96_BIT},           //    [VK_FORMAT_R32G32B32_SFLOAT]
151     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_128_BIT},          //    [VK_FORMAT_R32G32B32A32_UINT]
152     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_128_BIT},          //    [VK_FORMAT_R32G32B32A32_SINT]
153     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_128_BIT},          //    [VK_FORMAT_R32G32B32A32_SFLOAT]
154     {8, 1, VK_FORMAT_COMPATIBILITY_CLASS_64_BIT},            //    [VK_FORMAT_R64_UINT]
155     {8, 1, VK_FORMAT_COMPATIBILITY_CLASS_64_BIT},            //    [VK_FORMAT_R64_SINT]
156     {8, 1, VK_FORMAT_COMPATIBILITY_CLASS_64_BIT},            //    [VK_FORMAT_R64_SFLOAT]
157     {16, 2, VK_FORMAT_COMPATIBILITY_CLASS_128_BIT},          //    [VK_FORMAT_R64G64_UINT]
158     {16, 2, VK_FORMAT_COMPATIBILITY_CLASS_128_BIT},          //    [VK_FORMAT_R64G64_SINT]
159     {16, 2, VK_FORMAT_COMPATIBILITY_CLASS_128_BIT},          //    [VK_FORMAT_R64G64_SFLOAT]
160     {24, 3, VK_FORMAT_COMPATIBILITY_CLASS_192_BIT},          //    [VK_FORMAT_R64G64B64_UINT]
161     {24, 3, VK_FORMAT_COMPATIBILITY_CLASS_192_BIT},          //    [VK_FORMAT_R64G64B64_SINT]
162     {24, 3, VK_FORMAT_COMPATIBILITY_CLASS_192_BIT},          //    [VK_FORMAT_R64G64B64_SFLOAT]
163     {32, 4, VK_FORMAT_COMPATIBILITY_CLASS_256_BIT},          //    [VK_FORMAT_R64G64B64A64_UINT]
164     {32, 4, VK_FORMAT_COMPATIBILITY_CLASS_256_BIT},          //    [VK_FORMAT_R64G64B64A64_SINT]
165     {32, 4, VK_FORMAT_COMPATIBILITY_CLASS_256_BIT},          //    [VK_FORMAT_R64G64B64A64_SFLOAT]
166     {4, 3, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_B10G11R11_UFLOAT_PACK32]
167     {4, 3, VK_FORMAT_COMPATIBILITY_CLASS_32_BIT},            //    [VK_FORMAT_E5B9G9R9_UFLOAT_PACK32]
168     {2, 1, VK_FORMAT_COMPATIBILITY_CLASS_NONE_BIT},          //    [VK_FORMAT_D16_UNORM]
169     {3, 1, VK_FORMAT_COMPATIBILITY_CLASS_NONE_BIT},          //    [VK_FORMAT_X8_D24_UNORM_PACK32]
170     {4, 1, VK_FORMAT_COMPATIBILITY_CLASS_NONE_BIT},          //    [VK_FORMAT_D32_SFLOAT]
171     {1, 1, VK_FORMAT_COMPATIBILITY_CLASS_NONE_BIT},          //    [VK_FORMAT_S8_UINT]
172     {3, 2, VK_FORMAT_COMPATIBILITY_CLASS_NONE_BIT},          //    [VK_FORMAT_D16_UNORM_S8_UINT]
173     {4, 2, VK_FORMAT_COMPATIBILITY_CLASS_NONE_BIT},          //    [VK_FORMAT_D24_UNORM_S8_UINT]
174     {4, 2, VK_FORMAT_COMPATIBILITY_CLASS_NONE_BIT},          //    [VK_FORMAT_D32_SFLOAT_S8_UINT]
175     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC1_RGB_BIT},       //    [VK_FORMAT_BC1_RGB_UNORM_BLOCK]
176     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC1_RGB_BIT},       //    [VK_FORMAT_BC1_RGB_SRGB_BLOCK]
177     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC1_RGBA_BIT},      //    [VK_FORMAT_BC1_RGBA_UNORM_BLOCK]
178     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC1_RGBA_BIT},      //    [VK_FORMAT_BC1_RGBA_SRGB_BLOCK]
179     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC2_BIT},          //    [VK_FORMAT_BC2_UNORM_BLOCK]
180     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC2_BIT},          //    [VK_FORMAT_BC2_SRGB_BLOCK]
181     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC3_BIT},          //    [VK_FORMAT_BC3_UNORM_BLOCK]
182     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC3_BIT},          //    [VK_FORMAT_BC3_SRGB_BLOCK]
183     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC4_BIT},           //    [VK_FORMAT_BC4_UNORM_BLOCK]
184     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC4_BIT},           //    [VK_FORMAT_BC4_SNORM_BLOCK]
185     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC5_BIT},          //    [VK_FORMAT_BC5_UNORM_BLOCK]
186     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC5_BIT},          //    [VK_FORMAT_BC5_SNORM_BLOCK]
187     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC6H_BIT},         //    [VK_FORMAT_BC6H_UFLOAT_BLOCK]
188     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC6H_BIT},         //    [VK_FORMAT_BC6H_SFLOAT_BLOCK]
189     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC7_BIT},          //    [VK_FORMAT_BC7_UNORM_BLOCK]
190     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_BC7_BIT},          //    [VK_FORMAT_BC7_SRGB_BLOCK]
191     {8, 3, VK_FORMAT_COMPATIBILITY_CLASS_ETC2_RGB_BIT},      //    [VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK]
192     {8, 3, VK_FORMAT_COMPATIBILITY_CLASS_ETC2_RGB_BIT},      //    [VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK]
193     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_ETC2_RGBA_BIT},     //    [VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK]
194     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_ETC2_RGBA_BIT},     //    [VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK]
195     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_ETC2_EAC_RGBA_BIT}, //    [VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK]
196     {8, 4, VK_FORMAT_COMPATIBILITY_CLASS_ETC2_EAC_RGBA_BIT}, // [VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK]
197     {8, 1, VK_FORMAT_COMPATIBILITY_CLASS_EAC_R_BIT},         //    [VK_FORMAT_EAC_R11_UNORM_BLOCK]
198     {8, 1, VK_FORMAT_COMPATIBILITY_CLASS_EAC_R_BIT},         //    [VK_FORMAT_EAC_R11_SNORM_BLOCK]
199     {16, 2, VK_FORMAT_COMPATIBILITY_CLASS_EAC_RG_BIT},       //    [VK_FORMAT_EAC_R11G11_UNORM_BLOCK]
200     {16, 2, VK_FORMAT_COMPATIBILITY_CLASS_EAC_RG_BIT},       //    [VK_FORMAT_EAC_R11G11_SNORM_BLOCK]
201     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_4X4_BIT},     //    [VK_FORMAT_ASTC_4x4_UNORM_BLOCK]
202     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_4X4_BIT},     //    [VK_FORMAT_ASTC_4x4_SRGB_BLOCK]
203     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_5X4_BIT},     //    [VK_FORMAT_ASTC_5x4_UNORM_BLOCK]
204     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_5X4_BIT},     //    [VK_FORMAT_ASTC_5x4_SRGB_BLOCK]
205     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_5X5_BIT},     //    [VK_FORMAT_ASTC_5x5_UNORM_BLOCK]
206     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_5X5_BIT},     //    [VK_FORMAT_ASTC_5x5_SRGB_BLOCK]
207     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_6X5_BIT},     //    [VK_FORMAT_ASTC_6x5_UNORM_BLOCK]
208     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_6X5_BIT},     //    [VK_FORMAT_ASTC_6x5_SRGB_BLOCK]
209     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_6X6_BIT},     //    [VK_FORMAT_ASTC_6x6_UNORM_BLOCK]
210     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_6X6_BIT},     //    [VK_FORMAT_ASTC_6x6_SRGB_BLOCK]
211     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_8X5_BIT},     //    [VK_FORMAT_ASTC_8x5_UNORM_BLOCK]
212     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_8X5_BIT},     //    [VK_FORMAT_ASTC_8x5_SRGB_BLOCK]
213     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_8X6_BIT},     //    [VK_FORMAT_ASTC_8x6_UNORM_BLOCK]
214     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_8X6_BIT},     //    [VK_FORMAT_ASTC_8x6_SRGB_BLOCK]
215     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_8X8_BIT},     //    [VK_FORMAT_ASTC_8x8_UNORM_BLOCK]
216     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_8X8_BIT},     //    [VK_FORMAT_ASTC_8x8_SRGB_BLOCK]
217     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X5_BIT},    //    [VK_FORMAT_ASTC_10x5_UNORM_BLOCK]
218     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X5_BIT},    //    [VK_FORMAT_ASTC_10x5_SRGB_BLOCK]
219     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X6_BIT},    //    [VK_FORMAT_ASTC_10x6_UNORM_BLOCK]
220     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X6_BIT},    //    [VK_FORMAT_ASTC_10x6_SRGB_BLOCK]
221     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X8_BIT},    //    [VK_FORMAT_ASTC_10x8_UNORM_BLOCK]
222     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X8_BIT},    //    [VK_FORMAT_ASTC_10x8_SRGB_BLOCK]
223     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X10_BIT},   //    [VK_FORMAT_ASTC_10x10_UNORM_BLOCK]
224     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_10X10_BIT},   //    [VK_FORMAT_ASTC_10x10_SRGB_BLOCK]
225     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_12X10_BIT},   //    [VK_FORMAT_ASTC_12x10_UNORM_BLOCK]
226     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_12X10_BIT},   //    [VK_FORMAT_ASTC_12x10_SRGB_BLOCK]
227     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_12X12_BIT},   //    [VK_FORMAT_ASTC_12x12_UNORM_BLOCK]
228     {16, 4, VK_FORMAT_COMPATIBILITY_CLASS_ASTC_12X12_BIT},   //    [VK_FORMAT_ASTC_12x12_SRGB_BLOCK]
229 };
230 
231 // Return true if format is a depth or stencil format
vk_format_is_depth_or_stencil(VkFormat format)232 bool vk_format_is_depth_or_stencil(VkFormat format) {
233     return (vk_format_is_depth_and_stencil(format) || vk_format_is_depth_only(format) || vk_format_is_stencil_only(format));
234 }
235 
236 // Return true if format contains depth and stencil information
vk_format_is_depth_and_stencil(VkFormat format)237 bool vk_format_is_depth_and_stencil(VkFormat format) {
238     bool is_ds = false;
239 
240     switch (format) {
241     case VK_FORMAT_D16_UNORM_S8_UINT:
242     case VK_FORMAT_D24_UNORM_S8_UINT:
243     case VK_FORMAT_D32_SFLOAT_S8_UINT:
244         is_ds = true;
245         break;
246     default:
247         break;
248     }
249     return is_ds;
250 }
251 
252 // Return true if format is a stencil-only format
vk_format_is_stencil_only(VkFormat format)253 bool vk_format_is_stencil_only(VkFormat format) { return (format == VK_FORMAT_S8_UINT); }
254 
255 // Return true if format is a depth-only format
vk_format_is_depth_only(VkFormat format)256 bool vk_format_is_depth_only(VkFormat format) {
257     bool is_depth = false;
258 
259     switch (format) {
260     case VK_FORMAT_D16_UNORM:
261     case VK_FORMAT_X8_D24_UNORM_PACK32:
262     case VK_FORMAT_D32_SFLOAT:
263         is_depth = true;
264         break;
265     default:
266         break;
267     }
268 
269     return is_depth;
270 }
271 
272 // Return true if format is of time UNORM
vk_format_is_norm(VkFormat format)273 bool vk_format_is_norm(VkFormat format) {
274     bool is_norm = false;
275 
276     switch (format) {
277     case VK_FORMAT_R4G4_UNORM_PACK8:
278     case VK_FORMAT_R4G4B4A4_UNORM_PACK16:
279     case VK_FORMAT_R5G6B5_UNORM_PACK16:
280     case VK_FORMAT_R5G5B5A1_UNORM_PACK16:
281     case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
282     case VK_FORMAT_R8_UNORM:
283     case VK_FORMAT_R8_SNORM:
284     case VK_FORMAT_R8G8_UNORM:
285     case VK_FORMAT_R8G8_SNORM:
286     case VK_FORMAT_R8G8B8_UNORM:
287     case VK_FORMAT_R8G8B8_SNORM:
288     case VK_FORMAT_R8G8B8A8_UNORM:
289     case VK_FORMAT_R8G8B8A8_SNORM:
290     case VK_FORMAT_A8B8G8R8_UNORM_PACK32:
291     case VK_FORMAT_A8B8G8R8_SNORM_PACK32:
292     case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
293     case VK_FORMAT_A2B10G10R10_SNORM_PACK32:
294     case VK_FORMAT_R16_UNORM:
295     case VK_FORMAT_R16_SNORM:
296     case VK_FORMAT_R16G16_UNORM:
297     case VK_FORMAT_R16G16_SNORM:
298     case VK_FORMAT_R16G16B16_UNORM:
299     case VK_FORMAT_R16G16B16_SNORM:
300     case VK_FORMAT_R16G16B16A16_UNORM:
301     case VK_FORMAT_R16G16B16A16_SNORM:
302     case VK_FORMAT_BC1_RGB_UNORM_BLOCK:
303     case VK_FORMAT_BC2_UNORM_BLOCK:
304     case VK_FORMAT_BC3_UNORM_BLOCK:
305     case VK_FORMAT_BC4_UNORM_BLOCK:
306     case VK_FORMAT_BC4_SNORM_BLOCK:
307     case VK_FORMAT_BC5_UNORM_BLOCK:
308     case VK_FORMAT_BC5_SNORM_BLOCK:
309     case VK_FORMAT_BC7_UNORM_BLOCK:
310     case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
311     case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
312     case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
313     case VK_FORMAT_EAC_R11_UNORM_BLOCK:
314     case VK_FORMAT_EAC_R11_SNORM_BLOCK:
315     case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
316     case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
317     case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
318     case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
319     case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
320     case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
321     case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
322     case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
323     case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
324     case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
325     case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
326     case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
327     case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
328     case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
329     case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
330     case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
331     case VK_FORMAT_B5G6R5_UNORM_PACK16:
332     case VK_FORMAT_B8G8R8_UNORM:
333     case VK_FORMAT_B8G8R8_SNORM:
334     case VK_FORMAT_B8G8R8A8_UNORM:
335     case VK_FORMAT_B8G8R8A8_SNORM:
336     case VK_FORMAT_A2R10G10B10_UNORM_PACK32:
337     case VK_FORMAT_A2R10G10B10_SNORM_PACK32:
338         is_norm = true;
339         break;
340     default:
341         break;
342     }
343 
344     return is_norm;
345 };
346 
347 // Return true if format is an integer format
vk_format_is_int(VkFormat format)348 bool vk_format_is_int(VkFormat format) { return (vk_format_is_sint(format) || vk_format_is_uint(format)); }
349 
350 // Return true if format is an unsigned integer format
vk_format_is_uint(VkFormat format)351 bool vk_format_is_uint(VkFormat format) {
352     bool is_uint = false;
353 
354     switch (format) {
355     case VK_FORMAT_R8_UINT:
356     case VK_FORMAT_R8G8_UINT:
357     case VK_FORMAT_R8G8B8_UINT:
358     case VK_FORMAT_R8G8B8A8_UINT:
359     case VK_FORMAT_A8B8G8R8_UINT_PACK32:
360     case VK_FORMAT_A2B10G10R10_UINT_PACK32:
361     case VK_FORMAT_R16_UINT:
362     case VK_FORMAT_R16G16_UINT:
363     case VK_FORMAT_R16G16B16_UINT:
364     case VK_FORMAT_R16G16B16A16_UINT:
365     case VK_FORMAT_R32_UINT:
366     case VK_FORMAT_R32G32_UINT:
367     case VK_FORMAT_R32G32B32_UINT:
368     case VK_FORMAT_R32G32B32A32_UINT:
369     case VK_FORMAT_R64_UINT:
370     case VK_FORMAT_R64G64_UINT:
371     case VK_FORMAT_R64G64B64_UINT:
372     case VK_FORMAT_R64G64B64A64_UINT:
373     case VK_FORMAT_B8G8R8_UINT:
374     case VK_FORMAT_B8G8R8A8_UINT:
375     case VK_FORMAT_A2R10G10B10_UINT_PACK32:
376         is_uint = true;
377         break;
378     default:
379         break;
380     }
381 
382     return is_uint;
383 }
384 
385 // Return true if format is a signed integer format
vk_format_is_sint(VkFormat format)386 bool vk_format_is_sint(VkFormat format) {
387     bool is_sint = false;
388 
389     switch (format) {
390     case VK_FORMAT_R8_SINT:
391     case VK_FORMAT_R8G8_SINT:
392     case VK_FORMAT_R8G8B8_SINT:
393     case VK_FORMAT_R8G8B8A8_SINT:
394     case VK_FORMAT_A8B8G8R8_SINT_PACK32:
395     case VK_FORMAT_A2B10G10R10_SINT_PACK32:
396     case VK_FORMAT_R16_SINT:
397     case VK_FORMAT_R16G16_SINT:
398     case VK_FORMAT_R16G16B16_SINT:
399     case VK_FORMAT_R16G16B16A16_SINT:
400     case VK_FORMAT_R32_SINT:
401     case VK_FORMAT_R32G32_SINT:
402     case VK_FORMAT_R32G32B32_SINT:
403     case VK_FORMAT_R32G32B32A32_SINT:
404     case VK_FORMAT_R64_SINT:
405     case VK_FORMAT_R64G64_SINT:
406     case VK_FORMAT_R64G64B64_SINT:
407     case VK_FORMAT_R64G64B64A64_SINT:
408     case VK_FORMAT_B8G8R8_SINT:
409     case VK_FORMAT_B8G8R8A8_SINT:
410     case VK_FORMAT_A2R10G10B10_SINT_PACK32:
411         is_sint = true;
412         break;
413     default:
414         break;
415     }
416 
417     return is_sint;
418 }
419 
420 // Return true if format is a floating-point format
vk_format_is_float(VkFormat format)421 bool vk_format_is_float(VkFormat format) {
422     bool is_float = false;
423 
424     switch (format) {
425     case VK_FORMAT_R16_SFLOAT:
426     case VK_FORMAT_R16G16_SFLOAT:
427     case VK_FORMAT_R16G16B16_SFLOAT:
428     case VK_FORMAT_R16G16B16A16_SFLOAT:
429     case VK_FORMAT_R32_SFLOAT:
430     case VK_FORMAT_R32G32_SFLOAT:
431     case VK_FORMAT_R32G32B32_SFLOAT:
432     case VK_FORMAT_R32G32B32A32_SFLOAT:
433     case VK_FORMAT_R64_SFLOAT:
434     case VK_FORMAT_R64G64_SFLOAT:
435     case VK_FORMAT_R64G64B64_SFLOAT:
436     case VK_FORMAT_R64G64B64A64_SFLOAT:
437     case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
438     case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
439     case VK_FORMAT_BC6H_UFLOAT_BLOCK:
440     case VK_FORMAT_BC6H_SFLOAT_BLOCK:
441         is_float = true;
442         break;
443     default:
444         break;
445     }
446 
447     return is_float;
448 }
449 
450 // Return true if format is in the SRGB colorspace
vk_format_is_srgb(VkFormat format)451 bool vk_format_is_srgb(VkFormat format) {
452     bool is_srgb = false;
453 
454     switch (format) {
455     case VK_FORMAT_R8_SRGB:
456     case VK_FORMAT_R8G8_SRGB:
457     case VK_FORMAT_R8G8B8_SRGB:
458     case VK_FORMAT_R8G8B8A8_SRGB:
459     case VK_FORMAT_A8B8G8R8_SRGB_PACK32:
460     case VK_FORMAT_BC1_RGB_SRGB_BLOCK:
461     case VK_FORMAT_BC2_SRGB_BLOCK:
462     case VK_FORMAT_BC3_SRGB_BLOCK:
463     case VK_FORMAT_BC7_SRGB_BLOCK:
464     case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
465     case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
466     case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
467     case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
468     case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
469     case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
470     case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
471     case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
472     case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
473     case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
474     case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
475     case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
476     case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
477     case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
478     case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
479     case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
480     case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
481     case VK_FORMAT_B8G8R8_SRGB:
482     case VK_FORMAT_B8G8R8A8_SRGB:
483         is_srgb = true;
484         break;
485     default:
486         break;
487     }
488 
489     return is_srgb;
490 }
491 
492 // Return true if format is compressed
vk_format_is_compressed(VkFormat format)493 bool vk_format_is_compressed(VkFormat format) {
494     switch (format) {
495     case VK_FORMAT_BC1_RGB_UNORM_BLOCK:
496     case VK_FORMAT_BC1_RGB_SRGB_BLOCK:
497     case VK_FORMAT_BC2_UNORM_BLOCK:
498     case VK_FORMAT_BC2_SRGB_BLOCK:
499     case VK_FORMAT_BC3_UNORM_BLOCK:
500     case VK_FORMAT_BC3_SRGB_BLOCK:
501     case VK_FORMAT_BC4_UNORM_BLOCK:
502     case VK_FORMAT_BC4_SNORM_BLOCK:
503     case VK_FORMAT_BC5_UNORM_BLOCK:
504     case VK_FORMAT_BC5_SNORM_BLOCK:
505     case VK_FORMAT_BC6H_UFLOAT_BLOCK:
506     case VK_FORMAT_BC6H_SFLOAT_BLOCK:
507     case VK_FORMAT_BC7_UNORM_BLOCK:
508     case VK_FORMAT_BC7_SRGB_BLOCK:
509     case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
510     case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
511     case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
512     case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
513     case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
514     case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
515     case VK_FORMAT_EAC_R11_UNORM_BLOCK:
516     case VK_FORMAT_EAC_R11_SNORM_BLOCK:
517     case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
518     case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
519     case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
520     case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
521     case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
522     case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
523     case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
524     case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
525     case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
526     case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
527     case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
528     case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
529     case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
530     case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
531     case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
532     case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
533     case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
534     case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
535     case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
536     case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
537     case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
538     case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
539     case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
540     case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
541     case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
542     case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
543     case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
544     case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
545     case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
546     case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
547         return true;
548     default:
549         return false;
550     }
551 }
552 
553 // Return format class of the specified format
vk_format_get_compatibility_class(VkFormat format)554 VkFormatCompatibilityClass vk_format_get_compatibility_class(VkFormat format) { return vk_format_table[format].format_class; }
555 
556 // Return size, in bytes, of a pixel of the specified format
vk_format_get_size(VkFormat format)557 size_t vk_format_get_size(VkFormat format) { return vk_format_table[format].size; }
558 
559 // Return the number of channels for a given format
vk_format_get_channel_count(VkFormat format)560 unsigned int vk_format_get_channel_count(VkFormat format) { return vk_format_table[format].channel_count; }
561 
562 // Perform a zero-tolerant modulo operation
vk_safe_modulo(VkDeviceSize dividend,VkDeviceSize divisor)563 VkDeviceSize vk_safe_modulo(VkDeviceSize dividend, VkDeviceSize divisor) {
564     VkDeviceSize result = 0;
565     if (divisor != 0) {
566         result = dividend % divisor;
567     }
568     return result;
569 }
570 
571 static const char UTF8_ONE_BYTE_CODE = 0xC0;
572 static const char UTF8_ONE_BYTE_MASK = 0xE0;
573 static const char UTF8_TWO_BYTE_CODE = 0xE0;
574 static const char UTF8_TWO_BYTE_MASK = 0xF0;
575 static const char UTF8_THREE_BYTE_CODE = 0xF0;
576 static const char UTF8_THREE_BYTE_MASK = 0xF8;
577 static const char UTF8_DATA_BYTE_CODE = 0x80;
578 static const char UTF8_DATA_BYTE_MASK = 0xC0;
579 
vk_string_validate(const int max_length,const char * utf8)580 VkStringErrorFlags vk_string_validate(const int max_length, const char *utf8) {
581     VkStringErrorFlags result = VK_STRING_ERROR_NONE;
582     int num_char_bytes = 0;
583     int i, j;
584 
585     for (i = 0; i < max_length; i++) {
586         if (utf8[i] == 0) {
587             break;
588         } else if ((utf8[i] >= 0x20) && (utf8[i] < 0x7f)) {
589             num_char_bytes = 0;
590         } else if ((utf8[i] & UTF8_ONE_BYTE_MASK) == UTF8_ONE_BYTE_CODE) {
591             num_char_bytes = 1;
592         } else if ((utf8[i] & UTF8_TWO_BYTE_MASK) == UTF8_TWO_BYTE_CODE) {
593             num_char_bytes = 2;
594         } else if ((utf8[i] & UTF8_THREE_BYTE_MASK) == UTF8_THREE_BYTE_CODE) {
595             num_char_bytes = 3;
596         } else {
597             result = VK_STRING_ERROR_BAD_DATA;
598         }
599 
600         // Validate the following num_char_bytes of data
601         for (j = 0; (j < num_char_bytes) && (i < max_length); j++) {
602             if (++i == max_length) {
603                 result |= VK_STRING_ERROR_LENGTH;
604                 break;
605             }
606             if ((utf8[i] & UTF8_DATA_BYTE_MASK) != UTF8_DATA_BYTE_CODE) {
607                 result |= VK_STRING_ERROR_BAD_DATA;
608             }
609         }
610     }
611     return result;
612 }
613 
layer_debug_actions(debug_report_data * report_data,std::vector<VkDebugReportCallbackEXT> & logging_callback,const VkAllocationCallbacks * pAllocator,const char * layer_identifier)614 void layer_debug_actions(debug_report_data *report_data, std::vector<VkDebugReportCallbackEXT> &logging_callback,
615                       const VkAllocationCallbacks *pAllocator, const char *layer_identifier) {
616 
617     uint32_t report_flags = 0;
618     uint32_t debug_action = 0;
619     VkDebugReportCallbackEXT callback = VK_NULL_HANDLE;
620 
621     std::string report_flags_key = layer_identifier;
622     std::string debug_action_key = layer_identifier;
623     std::string log_filename_key = layer_identifier;
624     report_flags_key.append(".report_flags");
625     debug_action_key.append(".debug_action");
626     log_filename_key.append(".log_filename");
627 
628     // initialize layer options
629     report_flags = getLayerOptionFlags(report_flags_key.c_str(), 0);
630     getLayerOptionEnum(debug_action_key.c_str(), (uint32_t *)&debug_action);
631 
632     if (debug_action & VK_DBG_LAYER_ACTION_LOG_MSG) {
633         const char *log_filename = getLayerOption(log_filename_key.c_str());
634         FILE *log_output = getLayerLogOutput(log_filename, layer_identifier);
635         VkDebugReportCallbackCreateInfoEXT dbgCreateInfo;
636         memset(&dbgCreateInfo, 0, sizeof(dbgCreateInfo));
637         dbgCreateInfo.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CREATE_INFO_EXT;
638         dbgCreateInfo.flags = report_flags;
639         dbgCreateInfo.pfnCallback = log_callback;
640         dbgCreateInfo.pUserData = (void *)log_output;
641         layer_create_msg_callback(report_data, &dbgCreateInfo, pAllocator, &callback);
642         logging_callback.push_back(callback);
643     }
644 
645     if (debug_action & VK_DBG_LAYER_ACTION_DEBUG_OUTPUT) {
646         VkDebugReportCallbackCreateInfoEXT dbgCreateInfo;
647         memset(&dbgCreateInfo, 0, sizeof(dbgCreateInfo));
648         dbgCreateInfo.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CREATE_INFO_EXT;
649         dbgCreateInfo.flags = report_flags;
650         dbgCreateInfo.pfnCallback = win32_debug_output_msg;
651         dbgCreateInfo.pUserData = NULL;
652         layer_create_msg_callback(report_data, &dbgCreateInfo, pAllocator, &callback);
653         logging_callback.push_back(callback);
654     }
655 }
656