external/vulkancts/framework/vulkan/vkImageUtil.cpp

   1 /*-------------------------------------------------------------------------
   2  * Vulkan CTS Framework
   3  * --------------------
   4  *
   5  * Copyright (c) 2015 The Khronos Group Inc.
   6  * Copyright (c) 2015 Imagination Technologies Ltd.
   7  * Copyright (c) 2015 Google Inc.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and/or associated documentation files (the
  11  * "Materials"), to deal in the Materials without restriction, including
  12  * without limitation the rights to use, copy, modify, merge, publish,
  13  * distribute, sublicense, and/or sell copies of the Materials, and to
  14  * permit persons to whom the Materials are furnished to do so, subject to
  15  * the following conditions:
  16  *
  17  * The above copyright notice(s) and this permission notice shall be
  18  * included in all copies or substantial portions of the Materials.
  19  *
  20  * The Materials are Confidential Information as defined by the
  21  * Khronos Membership Agreement until designated non-confidential by
  22  * Khronos, at which point this condition clause shall be removed.
  23  *
  24  * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  27  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  28  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  29  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  30  * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
  31  *
  32  *//*!
  33  * \file
  34  * \brief Utilities for images.
  35  *//*--------------------------------------------------------------------*/
  36
  37 #include "vkImageUtil.hpp"
  38 #include "tcuTextureUtil.hpp"
  39
  40 namespace vk
  41 {
  42
  43 bool isFloatFormat (VkFormat format)
  44 {
  45         return tcu::getTextureChannelClass(mapVkFormat(format).type) == tcu::TEXTURECHANNELCLASS_FLOATING_POINT;
  46 }
  47
  48 bool isUnormFormat (VkFormat format)
  49 {
  50         return tcu::getTextureChannelClass(mapVkFormat(format).type) == tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
  51 }
  52
  53 bool isSnormFormat (VkFormat format)
  54 {
  55         return tcu::getTextureChannelClass(mapVkFormat(format).type) == tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT;
  56 }
  57
  58 bool isIntFormat (VkFormat format)
  59 {
  60         return tcu::getTextureChannelClass(mapVkFormat(format).type) == tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER;
  61 }
  62
  63 bool isUintFormat (VkFormat format)
  64 {
  65         return tcu::getTextureChannelClass(mapVkFormat(format).type) == tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
  66 }
  67
  68 bool isDepthStencilFormat (VkFormat format)
  69 {
  70         if (isCompressedFormat(format))
  71                 return false;
  72
  73         const tcu::TextureFormat tcuFormat = mapVkFormat(format);
  74         return tcuFormat.order == tcu::TextureFormat::D || tcuFormat.order == tcu::TextureFormat::S || tcuFormat.order == tcu::TextureFormat::DS;
  75 }
  76
  77 bool isCompressedFormat (VkFormat format)
  78 {
  79         // update this mapping if VkFormat changes
  80         DE_STATIC_ASSERT(VK_FORMAT_LAST == 174);
  81
  82         switch (format)
  83         {
  84                 case VK_FORMAT_BC1_RGB_UNORM:
  85                 case VK_FORMAT_BC1_RGB_SRGB:
  86                 case VK_FORMAT_BC1_RGBA_UNORM:
  87                 case VK_FORMAT_BC1_RGBA_SRGB:
  88                 case VK_FORMAT_BC2_UNORM:
  89                 case VK_FORMAT_BC2_SRGB:
  90                 case VK_FORMAT_BC3_UNORM:
  91                 case VK_FORMAT_BC3_SRGB:
  92                 case VK_FORMAT_BC4_UNORM:
  93                 case VK_FORMAT_BC4_SNORM:
  94                 case VK_FORMAT_BC5_UNORM:
  95                 case VK_FORMAT_BC5_SNORM:
  96                 case VK_FORMAT_BC6H_UFLOAT:
  97                 case VK_FORMAT_BC6H_SFLOAT:
  98                 case VK_FORMAT_BC7_UNORM:
  99                 case VK_FORMAT_BC7_SRGB:
 100                 case VK_FORMAT_ETC2_R8G8B8_UNORM:
 101                 case VK_FORMAT_ETC2_R8G8B8_SRGB:
 102                 case VK_FORMAT_ETC2_R8G8B8A1_UNORM:
 103                 case VK_FORMAT_ETC2_R8G8B8A1_SRGB:
 104                 case VK_FORMAT_ETC2_R8G8B8A8_UNORM:
 105                 case VK_FORMAT_ETC2_R8G8B8A8_SRGB:
 106                 case VK_FORMAT_EAC_R11_UNORM:
 107                 case VK_FORMAT_EAC_R11_SNORM:
 108                 case VK_FORMAT_EAC_R11G11_UNORM:
 109                 case VK_FORMAT_EAC_R11G11_SNORM:
 110                 case VK_FORMAT_ASTC_4x4_UNORM:
 111                 case VK_FORMAT_ASTC_4x4_SRGB:
 112                 case VK_FORMAT_ASTC_5x4_UNORM:
 113                 case VK_FORMAT_ASTC_5x4_SRGB:
 114                 case VK_FORMAT_ASTC_5x5_UNORM:
 115                 case VK_FORMAT_ASTC_5x5_SRGB:
 116                 case VK_FORMAT_ASTC_6x5_UNORM:
 117                 case VK_FORMAT_ASTC_6x5_SRGB:
 118                 case VK_FORMAT_ASTC_6x6_UNORM:
 119                 case VK_FORMAT_ASTC_6x6_SRGB:
 120                 case VK_FORMAT_ASTC_8x5_UNORM:
 121                 case VK_FORMAT_ASTC_8x5_SRGB:
 122                 case VK_FORMAT_ASTC_8x6_UNORM:
 123                 case VK_FORMAT_ASTC_8x6_SRGB:
 124                 case VK_FORMAT_ASTC_8x8_UNORM:
 125                 case VK_FORMAT_ASTC_8x8_SRGB:
 126                 case VK_FORMAT_ASTC_10x5_UNORM:
 127                 case VK_FORMAT_ASTC_10x5_SRGB:
 128                 case VK_FORMAT_ASTC_10x6_UNORM:
 129                 case VK_FORMAT_ASTC_10x6_SRGB:
 130                 case VK_FORMAT_ASTC_10x8_UNORM:
 131                 case VK_FORMAT_ASTC_10x8_SRGB:
 132                 case VK_FORMAT_ASTC_10x10_UNORM:
 133                 case VK_FORMAT_ASTC_10x10_SRGB:
 134                 case VK_FORMAT_ASTC_12x10_UNORM:
 135                 case VK_FORMAT_ASTC_12x10_SRGB:
 136                 case VK_FORMAT_ASTC_12x12_UNORM:
 137                 case VK_FORMAT_ASTC_12x12_SRGB:
 138                         return true;
 139
 140                 default:
 141                         return false;
 142         }
 143 }
 144
 145 VkFormat mapTextureFormat (const tcu::TextureFormat& format)
 146 {
 147         DE_STATIC_ASSERT(tcu::TextureFormat::CHANNELORDER_LAST < (1<<16));
 148         DE_STATIC_ASSERT(tcu::TextureFormat::CHANNELTYPE_LAST < (1<<16));
 149
 150 #define PACK_FMT(ORDER, TYPE) ((int(ORDER) << 16) | int(TYPE))
 151 #define FMT_CASE(ORDER, TYPE) PACK_FMT(tcu::TextureFormat::ORDER, tcu::TextureFormat::TYPE)
 152
 153         // update this mapping if VkFormat changes
 154         DE_STATIC_ASSERT(VK_FORMAT_LAST == 174);
 155
 156         switch (PACK_FMT(format.order, format.type))
 157         {
 158                 case FMT_CASE(RG, UNORM_BYTE_44):                                       return VK_FORMAT_R4G4_UNORM;
 159                 case FMT_CASE(RGB, UNORM_SHORT_565):                            return VK_FORMAT_R5G6B5_UNORM;
 160                 case FMT_CASE(RGBA, UNORM_SHORT_4444):                          return VK_FORMAT_R4G4B4A4_UNORM;
 161                 case FMT_CASE(RGBA, UNORM_SHORT_5551):                          return VK_FORMAT_R5G5B5A1_UNORM;
 162
 163                 case FMT_CASE(RG, UNSIGNED_BYTE_44):                            return VK_FORMAT_R4G4_USCALED;
 164                 case FMT_CASE(RGBA, UNSIGNED_SHORT_4444):                       return VK_FORMAT_R4G4B4A4_USCALED;
 165                 case FMT_CASE(RGB, UNSIGNED_SHORT_565):                         return VK_FORMAT_R5G6B5_USCALED;
 166                 case FMT_CASE(RGBA, UNSIGNED_SHORT_5551):                       return VK_FORMAT_R5G5B5A1_USCALED;
 167
 168                 case FMT_CASE(BGR, UNORM_SHORT_565):                            return VK_FORMAT_B5G6R5_UNORM;
 169                 case FMT_CASE(BGRA, UNORM_SHORT_4444):                          return VK_FORMAT_B4G4R4A4_UNORM;
 170                 case FMT_CASE(BGRA, UNORM_SHORT_5551):                          return VK_FORMAT_B5G5R5A1_UNORM;
 171
 172                 case FMT_CASE(BGR, UNSIGNED_SHORT_565):                         return VK_FORMAT_B5G6R5_USCALED;
 173
 174                 case FMT_CASE(R, UNORM_INT8):                                           return VK_FORMAT_R8_UNORM;
 175                 case FMT_CASE(R, SNORM_INT8):                                           return VK_FORMAT_R8_SNORM;
 176                 case FMT_CASE(R, UNSIGNED_INT8):                                        return VK_FORMAT_R8_UINT;
 177                 case FMT_CASE(R, SIGNED_INT8):                                          return VK_FORMAT_R8_SINT;
 178                 case FMT_CASE(sR, UNORM_INT8):                                          return VK_FORMAT_R8_SRGB;
 179
 180                 case FMT_CASE(RG, UNORM_INT8):                                          return VK_FORMAT_R8G8_UNORM;
 181                 case FMT_CASE(RG, SNORM_INT8):                                          return VK_FORMAT_R8G8_SNORM;
 182                 case FMT_CASE(RG, UNSIGNED_INT8):                                       return VK_FORMAT_R8G8_UINT;
 183                 case FMT_CASE(RG, SIGNED_INT8):                                         return VK_FORMAT_R8G8_SINT;
 184                 case FMT_CASE(sRG, UNORM_INT8):                                         return VK_FORMAT_R8G8_SRGB;
 185
 186                 case FMT_CASE(RGB, UNORM_INT8):                                         return VK_FORMAT_R8G8B8_UNORM;
 187                 case FMT_CASE(RGB, SNORM_INT8):                                         return VK_FORMAT_R8G8B8_SNORM;
 188                 case FMT_CASE(RGB, UNSIGNED_INT8):                                      return VK_FORMAT_R8G8B8_UINT;
 189                 case FMT_CASE(RGB, SIGNED_INT8):                                        return VK_FORMAT_R8G8B8_SINT;
 190                 case FMT_CASE(sRGB, UNORM_INT8):                                        return VK_FORMAT_R8G8B8_SRGB;
 191
 192                 case FMT_CASE(RGBA, UNORM_INT8):                                        return VK_FORMAT_R8G8B8A8_UNORM;
 193                 case FMT_CASE(RGBA, SNORM_INT8):                                        return VK_FORMAT_R8G8B8A8_SNORM;
 194                 case FMT_CASE(RGBA, UNSIGNED_INT8):                                     return VK_FORMAT_R8G8B8A8_UINT;
 195                 case FMT_CASE(RGBA, SIGNED_INT8):                                       return VK_FORMAT_R8G8B8A8_SINT;
 196                 case FMT_CASE(sRGBA, UNORM_INT8):                                       return VK_FORMAT_R8G8B8A8_SRGB;
 197
 198                 case FMT_CASE(RGBA, SNORM_INT_1010102_REV):                     return VK_FORMAT_R10G10B10A2_SNORM;
 199                 case FMT_CASE(RGBA, UNORM_INT_1010102_REV):                     return VK_FORMAT_R10G10B10A2_UNORM;
 200                 case FMT_CASE(RGBA, UNSIGNED_INT_1010102_REV):          return VK_FORMAT_R10G10B10A2_UINT;
 201                 case FMT_CASE(RGBA, SIGNED_INT_1010102_REV):            return VK_FORMAT_R10G10B10A2_SINT;
 202
 203                 case FMT_CASE(R, UNORM_INT16):                                          return VK_FORMAT_R16_UNORM;
 204                 case FMT_CASE(R, SNORM_INT16):                                          return VK_FORMAT_R16_SNORM;
 205                 case FMT_CASE(R, UNSIGNED_INT16):                                       return VK_FORMAT_R16_UINT;
 206                 case FMT_CASE(R, SIGNED_INT16):                                         return VK_FORMAT_R16_SINT;
 207                 case FMT_CASE(R, HALF_FLOAT):                                           return VK_FORMAT_R16_SFLOAT;
 208
 209                 case FMT_CASE(RG, UNORM_INT16):                                         return VK_FORMAT_R16G16_UNORM;
 210                 case FMT_CASE(RG, SNORM_INT16):                                         return VK_FORMAT_R16G16_SNORM;
 211                 case FMT_CASE(RG, UNSIGNED_INT16):                                      return VK_FORMAT_R16G16_UINT;
 212                 case FMT_CASE(RG, SIGNED_INT16):                                        return VK_FORMAT_R16G16_SINT;
 213                 case FMT_CASE(RG, HALF_FLOAT):                                          return VK_FORMAT_R16G16_SFLOAT;
 214
 215                 case FMT_CASE(RGB, UNORM_INT16):                                        return VK_FORMAT_R16G16B16_UNORM;
 216                 case FMT_CASE(RGB, SNORM_INT16):                                        return VK_FORMAT_R16G16B16_SNORM;
 217                 case FMT_CASE(RGB, UNSIGNED_INT16):                                     return VK_FORMAT_R16G16B16_UINT;
 218                 case FMT_CASE(RGB, SIGNED_INT16):                                       return VK_FORMAT_R16G16B16_SINT;
 219                 case FMT_CASE(RGB, HALF_FLOAT):                                         return VK_FORMAT_R16G16B16_SFLOAT;
 220
 221                 case FMT_CASE(RGBA, UNORM_INT16):                                       return VK_FORMAT_R16G16B16A16_UNORM;
 222                 case FMT_CASE(RGBA, SNORM_INT16):                                       return VK_FORMAT_R16G16B16A16_SNORM;
 223                 case FMT_CASE(RGBA, UNSIGNED_INT16):                            return VK_FORMAT_R16G16B16A16_UINT;
 224                 case FMT_CASE(RGBA, SIGNED_INT16):                                      return VK_FORMAT_R16G16B16A16_SINT;
 225                 case FMT_CASE(RGBA, HALF_FLOAT):                                        return VK_FORMAT_R16G16B16A16_SFLOAT;
 226
 227                 case FMT_CASE(R, UNSIGNED_INT32):                                       return VK_FORMAT_R32_UINT;
 228                 case FMT_CASE(R, SIGNED_INT32):                                         return VK_FORMAT_R32_SINT;
 229                 case FMT_CASE(R, FLOAT):                                                        return VK_FORMAT_R32_SFLOAT;
 230
 231                 case FMT_CASE(RG, UNSIGNED_INT32):                                      return VK_FORMAT_R32G32_UINT;
 232                 case FMT_CASE(RG, SIGNED_INT32):                                        return VK_FORMAT_R32G32_SINT;
 233                 case FMT_CASE(RG, FLOAT):                                                       return VK_FORMAT_R32G32_SFLOAT;
 234
 235                 case FMT_CASE(RGB, UNSIGNED_INT32):                                     return VK_FORMAT_R32G32B32_UINT;
 236                 case FMT_CASE(RGB, SIGNED_INT32):                                       return VK_FORMAT_R32G32B32_SINT;
 237                 case FMT_CASE(RGB, FLOAT):                                                      return VK_FORMAT_R32G32B32_SFLOAT;
 238
 239                 case FMT_CASE(RGBA, UNSIGNED_INT32):                            return VK_FORMAT_R32G32B32A32_UINT;
 240                 case FMT_CASE(RGBA, SIGNED_INT32):                                      return VK_FORMAT_R32G32B32A32_SINT;
 241                 case FMT_CASE(RGBA, FLOAT):                                                     return VK_FORMAT_R32G32B32A32_SFLOAT;
 242
 243                 case FMT_CASE(R, FLOAT64):                                                      return VK_FORMAT_R64_SFLOAT;
 244                 case FMT_CASE(RG, FLOAT64):                                                     return VK_FORMAT_R64G64_SFLOAT;
 245                 case FMT_CASE(RGB, FLOAT64):                                            return VK_FORMAT_R64G64B64_SFLOAT;
 246                 case FMT_CASE(RGBA, FLOAT64):                                           return VK_FORMAT_R64G64B64A64_SFLOAT;
 247
 248                 case FMT_CASE(RGB, UNSIGNED_INT_11F_11F_10F_REV):       return VK_FORMAT_R11G11B10_UFLOAT;
 249                 case FMT_CASE(RGB, UNSIGNED_INT_999_E5_REV):            return VK_FORMAT_R9G9B9E5_UFLOAT;
 250
 251                 case FMT_CASE(BGR, UNORM_INT8):                                         return VK_FORMAT_B8G8R8_UNORM;
 252                 case FMT_CASE(BGR, SNORM_INT8):                                         return VK_FORMAT_B8G8R8_SNORM;
 253                 case FMT_CASE(BGR, UNSIGNED_INT8):                                      return VK_FORMAT_B8G8R8_UINT;
 254                 case FMT_CASE(BGR, SIGNED_INT8):                                        return VK_FORMAT_B8G8R8_SINT;
 255                 case FMT_CASE(sBGR, UNORM_INT8):                                        return VK_FORMAT_B8G8R8_SRGB;
 256
 257                 case FMT_CASE(BGRA, UNORM_INT8):                                        return VK_FORMAT_B8G8R8A8_UNORM;
 258                 case FMT_CASE(BGRA, SNORM_INT8):                                        return VK_FORMAT_B8G8R8A8_SNORM;
 259                 case FMT_CASE(BGRA, UNSIGNED_INT8):                                     return VK_FORMAT_B8G8R8A8_UINT;
 260                 case FMT_CASE(BGRA, SIGNED_INT8):                                       return VK_FORMAT_B8G8R8A8_SINT;
 261                 case FMT_CASE(sBGRA, UNORM_INT8):                                       return VK_FORMAT_B8G8R8A8_SRGB;
 262
 263                 case FMT_CASE(BGRA, UNORM_INT_1010102_REV):                     return VK_FORMAT_B10G10R10A2_UNORM;
 264                 case FMT_CASE(BGRA, SNORM_INT_1010102_REV):                     return VK_FORMAT_B10G10R10A2_SNORM;
 265                 case FMT_CASE(BGRA, UNSIGNED_INT_1010102_REV):          return VK_FORMAT_B10G10R10A2_UINT;
 266                 case FMT_CASE(BGRA, SIGNED_INT_1010102_REV):            return VK_FORMAT_B10G10R10A2_SINT;
 267
 268                 case FMT_CASE(D, UNORM_INT16):                                          return VK_FORMAT_D16_UNORM;
 269                 case FMT_CASE(D, UNSIGNED_INT_24_8_REV):                        return VK_FORMAT_D24_UNORM_X8;
 270                 case FMT_CASE(D, FLOAT):                                                        return VK_FORMAT_D32_SFLOAT;
 271
 272                 case FMT_CASE(S, UNSIGNED_INT8):                                        return VK_FORMAT_S8_UINT;
 273
 274                 case FMT_CASE(DS, UNSIGNED_INT_16_8_8):                         return VK_FORMAT_D16_UNORM_S8_UINT;
 275                 case FMT_CASE(DS, UNSIGNED_INT_24_8_REV):                       return VK_FORMAT_D24_UNORM_S8_UINT;
 276                 case FMT_CASE(DS, FLOAT_UNSIGNED_INT_24_8_REV):         return VK_FORMAT_D32_SFLOAT_S8_UINT;
 277
 278                 default:
 279                         TCU_THROW(InternalError, "Unknown texture format");
 280         }
 281
 282 #undef PACK_FMT
 283 #undef FMT_CASE
 284 }
 285
 286 tcu::TextureFormat mapVkFormat (VkFormat format)
 287 {
 288         using tcu::TextureFormat;
 289
 290         // update this mapping if VkFormat changes
 291         DE_STATIC_ASSERT(VK_FORMAT_LAST == 174);
 292
 293         switch (format)
 294         {
 295                 case VK_FORMAT_R4G4_UNORM:                      return TextureFormat(TextureFormat::RG,         TextureFormat::UNORM_BYTE_44);
 296                 case VK_FORMAT_R5G6B5_UNORM:            return TextureFormat(TextureFormat::RGB,        TextureFormat::UNORM_SHORT_565);
 297                 case VK_FORMAT_R4G4B4A4_UNORM:          return TextureFormat(TextureFormat::RGBA,       TextureFormat::UNORM_SHORT_4444);
 298                 case VK_FORMAT_R5G5B5A1_UNORM:          return TextureFormat(TextureFormat::RGBA,       TextureFormat::UNORM_SHORT_5551);
 299
 300                 case VK_FORMAT_R4G4_USCALED:            return TextureFormat(TextureFormat::RG,         TextureFormat::UNSIGNED_BYTE_44);
 301                 case VK_FORMAT_R4G4B4A4_USCALED:        return TextureFormat(TextureFormat::RGBA,       TextureFormat::UNSIGNED_SHORT_4444);
 302                 case VK_FORMAT_R5G6B5_USCALED:          return TextureFormat(TextureFormat::RGB,        TextureFormat::UNSIGNED_SHORT_565);
 303                 case VK_FORMAT_R5G5B5A1_USCALED:        return TextureFormat(TextureFormat::RGBA,       TextureFormat::UNSIGNED_SHORT_5551);
 304
 305                 case VK_FORMAT_B5G6R5_UNORM:            return TextureFormat(TextureFormat::BGR,        TextureFormat::UNORM_SHORT_565);
 306                 case VK_FORMAT_B4G4R4A4_UNORM:          return TextureFormat(TextureFormat::BGRA,       TextureFormat::UNORM_SHORT_4444);
 307                 case VK_FORMAT_B5G5R5A1_UNORM:          return TextureFormat(TextureFormat::BGRA,       TextureFormat::UNORM_SHORT_5551);
 308
 309                 case VK_FORMAT_B5G6R5_USCALED:          return TextureFormat(TextureFormat::BGR,        TextureFormat::UNSIGNED_SHORT_565);
 310
 311                 case VK_FORMAT_R8_UNORM:                        return TextureFormat(TextureFormat::R,          TextureFormat::UNORM_INT8);
 312                 case VK_FORMAT_R8_SNORM:                        return TextureFormat(TextureFormat::R,          TextureFormat::SNORM_INT8);
 313                 case VK_FORMAT_R8_USCALED:                      return TextureFormat(TextureFormat::R,          TextureFormat::UNSIGNED_INT8);
 314                 case VK_FORMAT_R8_SSCALED:                      return TextureFormat(TextureFormat::R,          TextureFormat::SIGNED_INT8);
 315                 case VK_FORMAT_R8_UINT:                         return TextureFormat(TextureFormat::R,          TextureFormat::UNSIGNED_INT8);
 316                 case VK_FORMAT_R8_SINT:                         return TextureFormat(TextureFormat::R,          TextureFormat::SIGNED_INT8);
 317                 case VK_FORMAT_R8_SRGB:                         return TextureFormat(TextureFormat::sR,         TextureFormat::UNORM_INT8);
 318
 319                 case VK_FORMAT_R8G8_UNORM:                      return TextureFormat(TextureFormat::RG,         TextureFormat::UNORM_INT8);
 320                 case VK_FORMAT_R8G8_SNORM:                      return TextureFormat(TextureFormat::RG,         TextureFormat::SNORM_INT8);
 321                 case VK_FORMAT_R8G8_USCALED:            return TextureFormat(TextureFormat::RG,         TextureFormat::UNSIGNED_INT8);
 322                 case VK_FORMAT_R8G8_SSCALED:            return TextureFormat(TextureFormat::RG,         TextureFormat::SIGNED_INT8);
 323                 case VK_FORMAT_R8G8_UINT:                       return TextureFormat(TextureFormat::RG,         TextureFormat::UNSIGNED_INT8);
 324                 case VK_FORMAT_R8G8_SINT:                       return TextureFormat(TextureFormat::RG,         TextureFormat::SIGNED_INT8);
 325                 case VK_FORMAT_R8G8_SRGB:                       return TextureFormat(TextureFormat::sRG,        TextureFormat::UNORM_INT8);
 326
 327                 case VK_FORMAT_R8G8B8_UNORM:            return TextureFormat(TextureFormat::RGB,        TextureFormat::UNORM_INT8);
 328                 case VK_FORMAT_R8G8B8_SNORM:            return TextureFormat(TextureFormat::RGB,        TextureFormat::SNORM_INT8);
 329                 case VK_FORMAT_R8G8B8_USCALED:          return TextureFormat(TextureFormat::RGB,        TextureFormat::UNSIGNED_INT8);
 330                 case VK_FORMAT_R8G8B8_SSCALED:          return TextureFormat(TextureFormat::RGB,        TextureFormat::SIGNED_INT8);
 331                 case VK_FORMAT_R8G8B8_UINT:                     return TextureFormat(TextureFormat::RGB,        TextureFormat::UNSIGNED_INT8);
 332                 case VK_FORMAT_R8G8B8_SINT:                     return TextureFormat(TextureFormat::RGB,        TextureFormat::SIGNED_INT8);
 333                 case VK_FORMAT_R8G8B8_SRGB:                     return TextureFormat(TextureFormat::sRGB,       TextureFormat::UNORM_INT8);
 334
 335                 case VK_FORMAT_R8G8B8A8_UNORM:          return TextureFormat(TextureFormat::RGBA,       TextureFormat::UNORM_INT8);
 336                 case VK_FORMAT_R8G8B8A8_SNORM:          return TextureFormat(TextureFormat::RGBA,       TextureFormat::SNORM_INT8);
 337                 case VK_FORMAT_R8G8B8A8_USCALED:        return TextureFormat(TextureFormat::RGBA,       TextureFormat::UNSIGNED_INT8);
 338                 case VK_FORMAT_R8G8B8A8_SSCALED:        return TextureFormat(TextureFormat::RGBA,       TextureFormat::SIGNED_INT8);
 339                 case VK_FORMAT_R8G8B8A8_UINT:           return TextureFormat(TextureFormat::RGBA,       TextureFormat::UNSIGNED_INT8);
 340                 case VK_FORMAT_R8G8B8A8_SINT:           return TextureFormat(TextureFormat::RGBA,       TextureFormat::SIGNED_INT8);
 341                 case VK_FORMAT_R8G8B8A8_SRGB:           return TextureFormat(TextureFormat::sRGBA,      TextureFormat::UNORM_INT8);
 342
 343                 case VK_FORMAT_R10G10B10A2_UNORM:       return TextureFormat(TextureFormat::RGBA,       TextureFormat::UNORM_INT_1010102_REV);
 344                 case VK_FORMAT_R10G10B10A2_SNORM:       return TextureFormat(TextureFormat::RGBA,       TextureFormat::SNORM_INT_1010102_REV);
 345                 case VK_FORMAT_R10G10B10A2_UINT:        return TextureFormat(TextureFormat::RGBA,       TextureFormat::UNSIGNED_INT_1010102_REV);
 346                 case VK_FORMAT_R10G10B10A2_SINT:        return TextureFormat(TextureFormat::RGBA,       TextureFormat::SIGNED_INT_1010102_REV);
 347                 case VK_FORMAT_R10G10B10A2_USCALED:     return TextureFormat(TextureFormat::RGBA,       TextureFormat::UNSIGNED_INT_1010102_REV);
 348                 case VK_FORMAT_R10G10B10A2_SSCALED:     return TextureFormat(TextureFormat::RGBA,       TextureFormat::SIGNED_INT_1010102_REV);
 349
 350                 case VK_FORMAT_R16_UNORM:                       return TextureFormat(TextureFormat::R,          TextureFormat::UNORM_INT16);
 351                 case VK_FORMAT_R16_SNORM:                       return TextureFormat(TextureFormat::R,          TextureFormat::SNORM_INT16);
 352                 case VK_FORMAT_R16_USCALED:                     return TextureFormat(TextureFormat::R,          TextureFormat::UNSIGNED_INT16);
 353                 case VK_FORMAT_R16_SSCALED:                     return TextureFormat(TextureFormat::R,          TextureFormat::SIGNED_INT16);
 354                 case VK_FORMAT_R16_UINT:                        return TextureFormat(TextureFormat::R,          TextureFormat::UNSIGNED_INT16);
 355                 case VK_FORMAT_R16_SINT:                        return TextureFormat(TextureFormat::R,          TextureFormat::SIGNED_INT16);
 356                 case VK_FORMAT_R16_SFLOAT:                      return TextureFormat(TextureFormat::R,          TextureFormat::HALF_FLOAT);
 357
 358                 case VK_FORMAT_R16G16_UNORM:            return TextureFormat(TextureFormat::RG,         TextureFormat::UNORM_INT16);
 359                 case VK_FORMAT_R16G16_SNORM:            return TextureFormat(TextureFormat::RG,         TextureFormat::SNORM_INT16);
 360                 case VK_FORMAT_R16G16_USCALED:          return TextureFormat(TextureFormat::RG,         TextureFormat::UNSIGNED_INT16);
 361                 case VK_FORMAT_R16G16_SSCALED:          return TextureFormat(TextureFormat::RG,         TextureFormat::SIGNED_INT16);
 362                 case VK_FORMAT_R16G16_UINT:                     return TextureFormat(TextureFormat::RG,         TextureFormat::UNSIGNED_INT16);
 363                 case VK_FORMAT_R16G16_SINT:                     return TextureFormat(TextureFormat::RG,         TextureFormat::SIGNED_INT16);
 364                 case VK_FORMAT_R16G16_SFLOAT:           return TextureFormat(TextureFormat::RG,         TextureFormat::HALF_FLOAT);
 365
 366                 case VK_FORMAT_R16G16B16_UNORM:         return TextureFormat(TextureFormat::RGB,        TextureFormat::UNORM_INT16);
 367                 case VK_FORMAT_R16G16B16_SNORM:         return TextureFormat(TextureFormat::RGB,        TextureFormat::SNORM_INT16);
 368                 case VK_FORMAT_R16G16B16_USCALED:       return TextureFormat(TextureFormat::RGB,        TextureFormat::UNSIGNED_INT16);
 369                 case VK_FORMAT_R16G16B16_SSCALED:       return TextureFormat(TextureFormat::RGB,        TextureFormat::SIGNED_INT16);
 370                 case VK_FORMAT_R16G16B16_UINT:          return TextureFormat(TextureFormat::RGB,        TextureFormat::UNSIGNED_INT16);
 371                 case VK_FORMAT_R16G16B16_SINT:          return TextureFormat(TextureFormat::RGB,        TextureFormat::SIGNED_INT16);
 372                 case VK_FORMAT_R16G16B16_SFLOAT:        return TextureFormat(TextureFormat::RGB,        TextureFormat::HALF_FLOAT);
 373
 374                 case VK_FORMAT_R16G16B16A16_UNORM:      return TextureFormat(TextureFormat::RGBA,       TextureFormat::UNORM_INT16);
 375                 case VK_FORMAT_R16G16B16A16_SNORM:      return TextureFormat(TextureFormat::RGBA,       TextureFormat::SNORM_INT16);
 376                 case VK_FORMAT_R16G16B16A16_USCALED:return TextureFormat(TextureFormat::RGBA,   TextureFormat::UNSIGNED_INT16);
 377                 case VK_FORMAT_R16G16B16A16_SSCALED:return TextureFormat(TextureFormat::RGBA,   TextureFormat::SIGNED_INT16);
 378                 case VK_FORMAT_R16G16B16A16_UINT:       return TextureFormat(TextureFormat::RGBA,       TextureFormat::UNSIGNED_INT16);
 379                 case VK_FORMAT_R16G16B16A16_SINT:       return TextureFormat(TextureFormat::RGBA,       TextureFormat::SIGNED_INT16);
 380                 case VK_FORMAT_R16G16B16A16_SFLOAT:     return TextureFormat(TextureFormat::RGBA,       TextureFormat::HALF_FLOAT);
 381
 382                 case VK_FORMAT_R32_UINT:                        return TextureFormat(TextureFormat::R,          TextureFormat::UNSIGNED_INT32);
 383                 case VK_FORMAT_R32_SINT:                        return TextureFormat(TextureFormat::R,          TextureFormat::SIGNED_INT32);
 384                 case VK_FORMAT_R32_SFLOAT:                      return TextureFormat(TextureFormat::R,          TextureFormat::FLOAT);
 385
 386                 case VK_FORMAT_R32G32_UINT:                     return TextureFormat(TextureFormat::RG,         TextureFormat::UNSIGNED_INT32);
 387                 case VK_FORMAT_R32G32_SINT:                     return TextureFormat(TextureFormat::RG,         TextureFormat::SIGNED_INT32);
 388                 case VK_FORMAT_R32G32_SFLOAT:           return TextureFormat(TextureFormat::RG,         TextureFormat::FLOAT);
 389
 390                 case VK_FORMAT_R32G32B32_UINT:          return TextureFormat(TextureFormat::RGB,        TextureFormat::UNSIGNED_INT32);
 391                 case VK_FORMAT_R32G32B32_SINT:          return TextureFormat(TextureFormat::RGB,        TextureFormat::SIGNED_INT32);
 392                 case VK_FORMAT_R32G32B32_SFLOAT:        return TextureFormat(TextureFormat::RGB,        TextureFormat::FLOAT);
 393
 394                 case VK_FORMAT_R32G32B32A32_UINT:       return TextureFormat(TextureFormat::RGBA,       TextureFormat::UNSIGNED_INT32);
 395                 case VK_FORMAT_R32G32B32A32_SINT:       return TextureFormat(TextureFormat::RGBA,       TextureFormat::SIGNED_INT32);
 396                 case VK_FORMAT_R32G32B32A32_SFLOAT:     return TextureFormat(TextureFormat::RGBA,       TextureFormat::FLOAT);
 397
 398                 case VK_FORMAT_R64_SFLOAT:                      return TextureFormat(TextureFormat::R,          TextureFormat::FLOAT64);
 399                 case VK_FORMAT_R64G64_SFLOAT:           return TextureFormat(TextureFormat::RG,         TextureFormat::FLOAT64);
 400                 case VK_FORMAT_R64G64B64_SFLOAT:        return TextureFormat(TextureFormat::RGB,        TextureFormat::FLOAT64);
 401                 case VK_FORMAT_R64G64B64A64_SFLOAT:     return TextureFormat(TextureFormat::RGBA,       TextureFormat::FLOAT64);
 402
 403                 case VK_FORMAT_R11G11B10_UFLOAT:        return TextureFormat(TextureFormat::RGB,        TextureFormat::UNSIGNED_INT_11F_11F_10F_REV);
 404                 case VK_FORMAT_R9G9B9E5_UFLOAT:         return TextureFormat(TextureFormat::RGB,        TextureFormat::UNSIGNED_INT_999_E5_REV);
 405
 406                 case VK_FORMAT_B8G8R8_UNORM:            return TextureFormat(TextureFormat::BGR,        TextureFormat::UNORM_INT8);
 407                 case VK_FORMAT_B8G8R8_SNORM:            return TextureFormat(TextureFormat::BGR,        TextureFormat::SNORM_INT8);
 408                 case VK_FORMAT_B8G8R8_USCALED:          return TextureFormat(TextureFormat::BGR,        TextureFormat::UNSIGNED_INT8);
 409                 case VK_FORMAT_B8G8R8_SSCALED:          return TextureFormat(TextureFormat::BGR,        TextureFormat::SIGNED_INT8);
 410                 case VK_FORMAT_B8G8R8_UINT:                     return TextureFormat(TextureFormat::BGR,        TextureFormat::UNSIGNED_INT8);
 411                 case VK_FORMAT_B8G8R8_SINT:                     return TextureFormat(TextureFormat::BGR,        TextureFormat::SIGNED_INT8);
 412                 case VK_FORMAT_B8G8R8_SRGB:                     return TextureFormat(TextureFormat::sBGR,       TextureFormat::UNORM_INT8);
 413
 414                 case VK_FORMAT_B8G8R8A8_UNORM:          return TextureFormat(TextureFormat::BGRA,       TextureFormat::UNORM_INT8);
 415                 case VK_FORMAT_B8G8R8A8_SNORM:          return TextureFormat(TextureFormat::BGRA,       TextureFormat::SNORM_INT8);
 416                 case VK_FORMAT_B8G8R8A8_USCALED:        return TextureFormat(TextureFormat::BGRA,       TextureFormat::UNSIGNED_INT8);
 417                 case VK_FORMAT_B8G8R8A8_SSCALED:        return TextureFormat(TextureFormat::BGRA,       TextureFormat::SIGNED_INT8);
 418                 case VK_FORMAT_B8G8R8A8_UINT:           return TextureFormat(TextureFormat::BGRA,       TextureFormat::UNSIGNED_INT8);
 419                 case VK_FORMAT_B8G8R8A8_SINT:           return TextureFormat(TextureFormat::BGRA,       TextureFormat::SIGNED_INT8);
 420                 case VK_FORMAT_B8G8R8A8_SRGB:           return TextureFormat(TextureFormat::sBGRA,      TextureFormat::UNORM_INT8);
 421
 422                 case VK_FORMAT_D16_UNORM:                       return TextureFormat(TextureFormat::D,          TextureFormat::UNORM_INT16);
 423                 case VK_FORMAT_D24_UNORM_X8:            return TextureFormat(TextureFormat::D,          TextureFormat::UNSIGNED_INT_24_8_REV);
 424                 case VK_FORMAT_D32_SFLOAT:                      return TextureFormat(TextureFormat::D,          TextureFormat::FLOAT);
 425
 426                 case VK_FORMAT_S8_UINT:                         return TextureFormat(TextureFormat::S,          TextureFormat::UNSIGNED_INT8);
 427
 428                 // \note There is no standard interleaved memory layout for DS formats; buffer-image copies
 429                 //               will always operate on either D or S aspect only. See Khronos bug 12998
 430                 case VK_FORMAT_D16_UNORM_S8_UINT:       return TextureFormat(TextureFormat::DS,         TextureFormat::UNSIGNED_INT_16_8_8);
 431                 case VK_FORMAT_D24_UNORM_S8_UINT:       return TextureFormat(TextureFormat::DS,         TextureFormat::UNSIGNED_INT_24_8_REV);
 432                 case VK_FORMAT_D32_SFLOAT_S8_UINT:      return TextureFormat(TextureFormat::DS,         TextureFormat::FLOAT_UNSIGNED_INT_24_8_REV);
 433
 434                 case VK_FORMAT_B10G10R10A2_UNORM:       return TextureFormat(TextureFormat::BGRA,       TextureFormat::UNORM_INT_1010102_REV);
 435                 case VK_FORMAT_B10G10R10A2_SNORM:       return TextureFormat(TextureFormat::BGRA,       TextureFormat::SNORM_INT_1010102_REV);
 436                 case VK_FORMAT_B10G10R10A2_USCALED:     return TextureFormat(TextureFormat::BGRA,       TextureFormat::UNSIGNED_INT_1010102_REV);
 437                 case VK_FORMAT_B10G10R10A2_SSCALED:     return TextureFormat(TextureFormat::BGRA,       TextureFormat::SIGNED_INT_1010102_REV);
 438                 case VK_FORMAT_B10G10R10A2_UINT:        return TextureFormat(TextureFormat::BGRA,       TextureFormat::UNSIGNED_INT_1010102_REV);
 439                 case VK_FORMAT_B10G10R10A2_SINT:        return TextureFormat(TextureFormat::BGRA,       TextureFormat::SIGNED_INT_1010102_REV);
 440
 441                 default:
 442                         TCU_THROW(InternalError, "Unknown image format");
 443         }
 444 }
 445
 446 tcu::CompressedTexFormat mapVkCompressedFormat (VkFormat format)
 447 {
 448         switch (format)
 449         {
 450                 case VK_FORMAT_ETC2_R8G8B8_UNORM:               return tcu::COMPRESSEDTEXFORMAT_ETC2_RGB8;
 451                 case VK_FORMAT_ETC2_R8G8B8_SRGB:                return tcu::COMPRESSEDTEXFORMAT_ETC2_SRGB8;
 452                 case VK_FORMAT_ETC2_R8G8B8A1_UNORM:             return tcu::COMPRESSEDTEXFORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1;
 453                 case VK_FORMAT_ETC2_R8G8B8A1_SRGB:              return tcu::COMPRESSEDTEXFORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1;
 454                 case VK_FORMAT_ETC2_R8G8B8A8_UNORM:             return tcu::COMPRESSEDTEXFORMAT_ETC2_EAC_RGBA8;
 455                 case VK_FORMAT_ETC2_R8G8B8A8_SRGB:              return tcu::COMPRESSEDTEXFORMAT_ETC2_EAC_SRGB8_ALPHA8;
 456                 case VK_FORMAT_EAC_R11_UNORM:                   return tcu::COMPRESSEDTEXFORMAT_EAC_R11;
 457                 case VK_FORMAT_EAC_R11_SNORM:                   return tcu::COMPRESSEDTEXFORMAT_EAC_SIGNED_R11;
 458                 case VK_FORMAT_EAC_R11G11_UNORM:                return tcu::COMPRESSEDTEXFORMAT_EAC_RG11;
 459                 case VK_FORMAT_EAC_R11G11_SNORM:                return tcu::COMPRESSEDTEXFORMAT_EAC_SIGNED_RG11;
 460                 case VK_FORMAT_ASTC_4x4_UNORM:                  return tcu::COMPRESSEDTEXFORMAT_ASTC_4x4_RGBA;
 461                 case VK_FORMAT_ASTC_4x4_SRGB:                   return tcu::COMPRESSEDTEXFORMAT_ASTC_4x4_SRGB8_ALPHA8;
 462                 case VK_FORMAT_ASTC_5x4_UNORM:                  return tcu::COMPRESSEDTEXFORMAT_ASTC_5x4_RGBA;
 463                 case VK_FORMAT_ASTC_5x4_SRGB:                   return tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_SRGB8_ALPHA8;
 464                 case VK_FORMAT_ASTC_5x5_UNORM:                  return tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_RGBA;
 465                 case VK_FORMAT_ASTC_5x5_SRGB:                   return tcu::COMPRESSEDTEXFORMAT_ASTC_5x5_SRGB8_ALPHA8;
 466                 case VK_FORMAT_ASTC_6x5_UNORM:                  return tcu::COMPRESSEDTEXFORMAT_ASTC_6x5_RGBA;
 467                 case VK_FORMAT_ASTC_6x5_SRGB:                   return tcu::COMPRESSEDTEXFORMAT_ASTC_6x5_SRGB8_ALPHA8;
 468                 case VK_FORMAT_ASTC_6x6_UNORM:                  return tcu::COMPRESSEDTEXFORMAT_ASTC_6x6_RGBA;
 469                 case VK_FORMAT_ASTC_6x6_SRGB:                   return tcu::COMPRESSEDTEXFORMAT_ASTC_6x6_SRGB8_ALPHA8;
 470                 case VK_FORMAT_ASTC_8x5_UNORM:                  return tcu::COMPRESSEDTEXFORMAT_ASTC_8x5_RGBA;
 471                 case VK_FORMAT_ASTC_8x5_SRGB:                   return tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_SRGB8_ALPHA8;
 472                 case VK_FORMAT_ASTC_8x6_UNORM:                  return tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_RGBA;
 473                 case VK_FORMAT_ASTC_8x6_SRGB:                   return tcu::COMPRESSEDTEXFORMAT_ASTC_8x6_SRGB8_ALPHA8;
 474                 case VK_FORMAT_ASTC_8x8_UNORM:                  return tcu::COMPRESSEDTEXFORMAT_ASTC_8x8_RGBA;
 475                 case VK_FORMAT_ASTC_8x8_SRGB:                   return tcu::COMPRESSEDTEXFORMAT_ASTC_8x8_SRGB8_ALPHA8;
 476                 case VK_FORMAT_ASTC_10x5_UNORM:                 return tcu::COMPRESSEDTEXFORMAT_ASTC_10x5_RGBA;
 477                 case VK_FORMAT_ASTC_10x5_SRGB:                  return tcu::COMPRESSEDTEXFORMAT_ASTC_10x5_SRGB8_ALPHA8;
 478                 case VK_FORMAT_ASTC_10x6_UNORM:                 return tcu::COMPRESSEDTEXFORMAT_ASTC_10x6_RGBA;
 479                 case VK_FORMAT_ASTC_10x6_SRGB:                  return tcu::COMPRESSEDTEXFORMAT_ASTC_10x6_SRGB8_ALPHA8;
 480                 case VK_FORMAT_ASTC_10x8_UNORM:                 return tcu::COMPRESSEDTEXFORMAT_ASTC_10x8_RGBA;
 481                 case VK_FORMAT_ASTC_10x8_SRGB:                  return tcu::COMPRESSEDTEXFORMAT_ASTC_10x8_SRGB8_ALPHA8;
 482                 case VK_FORMAT_ASTC_10x10_UNORM:                return tcu::COMPRESSEDTEXFORMAT_ASTC_10x10_RGBA;
 483                 case VK_FORMAT_ASTC_10x10_SRGB:                 return tcu::COMPRESSEDTEXFORMAT_ASTC_10x10_SRGB8_ALPHA8;
 484                 case VK_FORMAT_ASTC_12x10_UNORM:                return tcu::COMPRESSEDTEXFORMAT_ASTC_12x10_RGBA;
 485                 case VK_FORMAT_ASTC_12x10_SRGB:                 return tcu::COMPRESSEDTEXFORMAT_ASTC_12x10_SRGB8_ALPHA8;
 486                 case VK_FORMAT_ASTC_12x12_UNORM:                return tcu::COMPRESSEDTEXFORMAT_ASTC_12x12_RGBA;
 487                 case VK_FORMAT_ASTC_12x12_SRGB:                 return tcu::COMPRESSEDTEXFORMAT_ASTC_12x12_SRGB8_ALPHA8;
 488                 default:
 489                         break;
 490         }
 491
 492         return tcu::COMPRESSEDTEXFORMAT_LAST;
 493 }
 494
 495 VkChannelMapping getFormatChannelMapping (VkFormat format)
 496 {
 497         using tcu::TextureFormat;
 498
 499         static const VkChannelMapping   R               = {     VK_CHANNEL_SWIZZLE_R,           VK_CHANNEL_SWIZZLE_ZERO,        VK_CHANNEL_SWIZZLE_ZERO,        VK_CHANNEL_SWIZZLE_ONE  };
 500         static const VkChannelMapping   RG              = {     VK_CHANNEL_SWIZZLE_R,           VK_CHANNEL_SWIZZLE_G,           VK_CHANNEL_SWIZZLE_ZERO,        VK_CHANNEL_SWIZZLE_ONE  };
 501         static const VkChannelMapping   RGB             = {     VK_CHANNEL_SWIZZLE_R,           VK_CHANNEL_SWIZZLE_G,           VK_CHANNEL_SWIZZLE_B,           VK_CHANNEL_SWIZZLE_ONE  };
 502         static const VkChannelMapping   RGBA    = {     VK_CHANNEL_SWIZZLE_R,           VK_CHANNEL_SWIZZLE_G,           VK_CHANNEL_SWIZZLE_B,           VK_CHANNEL_SWIZZLE_A    };
 503         static const VkChannelMapping   S               = { VK_CHANNEL_SWIZZLE_ZERO,    VK_CHANNEL_SWIZZLE_ZERO,        VK_CHANNEL_SWIZZLE_ZERO,        VK_CHANNEL_SWIZZLE_A    };
 504         static const VkChannelMapping   DS              = {     VK_CHANNEL_SWIZZLE_R,           VK_CHANNEL_SWIZZLE_ZERO,        VK_CHANNEL_SWIZZLE_ZERO,        VK_CHANNEL_SWIZZLE_A    };
 505         static const VkChannelMapping   BGRA    = {     VK_CHANNEL_SWIZZLE_B,           VK_CHANNEL_SWIZZLE_G,           VK_CHANNEL_SWIZZLE_R,           VK_CHANNEL_SWIZZLE_A    };
 506
 507         if (format == VK_FORMAT_UNDEFINED)
 508                 return RGBA;
 509
 510         const tcu::TextureFormat tcuFormat = (isCompressedFormat(format)) ? tcu::getUncompressedFormat(mapVkCompressedFormat(format))
 511                                                                                                                                           : mapVkFormat(format);
 512
 513         switch (tcuFormat.order)
 514         {
 515                 case TextureFormat::R:          return R;
 516                 case TextureFormat::RG:         return RG;
 517                 case TextureFormat::RGB:        return RGB;
 518                 case TextureFormat::RGBA:       return RGBA;
 519                 case TextureFormat::BGRA:       return BGRA;
 520                 case TextureFormat::sR:         return R;
 521                 case TextureFormat::sRG:        return RG;
 522                 case TextureFormat::sRGB:       return RGB;
 523                 case TextureFormat::sRGBA:      return RGBA;
 524                 case TextureFormat::D:          return R;
 525                 case TextureFormat::S:          return S;
 526                 case TextureFormat::DS:         return DS;
 527                 default:
 528                         break;
 529         }
 530
 531         DE_ASSERT(false);
 532         return RGBA;
 533 }
 534
 535 static bool isScaledFormat (VkFormat format)
 536 {
 537         // update this mapping if VkFormat changes
 538         DE_STATIC_ASSERT(VK_FORMAT_LAST == 174);
 539
 540         switch (format)
 541         {
 542                 case VK_FORMAT_R4G4_USCALED:
 543                 case VK_FORMAT_R4G4B4A4_USCALED:
 544                 case VK_FORMAT_R5G6B5_USCALED:
 545                 case VK_FORMAT_R5G5B5A1_USCALED:
 546                 case VK_FORMAT_R8_USCALED:
 547                 case VK_FORMAT_R8_SSCALED:
 548                 case VK_FORMAT_R8G8_USCALED:
 549                 case VK_FORMAT_R8G8_SSCALED:
 550                 case VK_FORMAT_R8G8B8_USCALED:
 551                 case VK_FORMAT_R8G8B8_SSCALED:
 552                 case VK_FORMAT_R8G8B8A8_USCALED:
 553                 case VK_FORMAT_R8G8B8A8_SSCALED:
 554                 case VK_FORMAT_R10G10B10A2_USCALED:
 555                 case VK_FORMAT_R10G10B10A2_SSCALED:
 556                 case VK_FORMAT_R16_USCALED:
 557                 case VK_FORMAT_R16_SSCALED:
 558                 case VK_FORMAT_R16G16_USCALED:
 559                 case VK_FORMAT_R16G16_SSCALED:
 560                 case VK_FORMAT_R16G16B16_USCALED:
 561                 case VK_FORMAT_R16G16B16_SSCALED:
 562                 case VK_FORMAT_R16G16B16A16_USCALED:
 563                 case VK_FORMAT_R16G16B16A16_SSCALED:
 564                 case VK_FORMAT_B5G6R5_USCALED:
 565                 case VK_FORMAT_B8G8R8_USCALED:
 566                 case VK_FORMAT_B8G8R8_SSCALED:
 567                 case VK_FORMAT_B8G8R8A8_USCALED:
 568                 case VK_FORMAT_B8G8R8A8_SSCALED:
 569                 case VK_FORMAT_B10G10R10A2_USCALED:
 570                 case VK_FORMAT_B10G10R10A2_SSCALED:
 571                         return true;
 572
 573                 default:
 574                         return false;
 575         }
 576 }
 577
 578 static bool fullTextureFormatRoundTripSupported (VkFormat format)
 579 {
 580         if (isScaledFormat(format))
 581         {
 582                 // *SCALED formats get mapped to correspoding (u)int formats since
 583                 // accessing them through (float) getPixel/setPixel has same behavior
 584                 // as in shader access in Vulkan.
 585                 // Unfortunately full round-trip between tcu::TextureFormat and VkFormat
 586                 // for most SCALED formats is not supported though.
 587
 588                 const tcu::TextureFormat        tcuFormat       = mapVkFormat(format);
 589
 590                 switch (tcuFormat.type)
 591                 {
 592                         case tcu::TextureFormat::UNSIGNED_INT8:
 593                         case tcu::TextureFormat::UNSIGNED_INT16:
 594                         case tcu::TextureFormat::UNSIGNED_INT32:
 595                         case tcu::TextureFormat::SIGNED_INT8:
 596                         case tcu::TextureFormat::SIGNED_INT16:
 597                         case tcu::TextureFormat::SIGNED_INT32:
 598                         case tcu::TextureFormat::UNSIGNED_INT_1010102_REV:
 599                         case tcu::TextureFormat::SIGNED_INT_1010102_REV:
 600                                 return false;
 601
 602                         default:
 603                                 return true;
 604                 }
 605         }
 606         else
 607                 return (format != VK_FORMAT_UNDEFINED);
 608 }
 609
 610 void imageUtilSelfTest (void)
 611 {
 612         for (int formatNdx = 0; formatNdx < VK_FORMAT_LAST; formatNdx++)
 613         {
 614                 const VkFormat  format  = (VkFormat)formatNdx;
 615
 616                 if (format != VK_FORMAT_UNDEFINED && !isCompressedFormat(format))
 617                 {
 618                         const tcu::TextureFormat        tcuFormat               = mapVkFormat(format);
 619                         const VkFormat                          remappedFormat  = mapTextureFormat(tcuFormat);
 620
 621                         DE_TEST_ASSERT(isValid(tcuFormat));
 622
 623                         if (fullTextureFormatRoundTripSupported(format))
 624                                 DE_TEST_ASSERT(format == remappedFormat);
 625                 }
 626         }
 627 }
 628
 629 VkTexFilter mapFilterMode (tcu::Sampler::FilterMode filterMode)
 630 {
 631         DE_STATIC_ASSERT(tcu::Sampler::FILTERMODE_LAST == 6);
 632
 633         switch(filterMode)
 634         {
 635                 case tcu::Sampler::NEAREST:                                     return VK_TEX_FILTER_NEAREST;
 636                 case tcu::Sampler::LINEAR:                                      return VK_TEX_FILTER_LINEAR;
 637                 case tcu::Sampler::NEAREST_MIPMAP_NEAREST:      return VK_TEX_FILTER_NEAREST;
 638                 case tcu::Sampler::NEAREST_MIPMAP_LINEAR:       return VK_TEX_FILTER_NEAREST;
 639                 case tcu::Sampler::LINEAR_MIPMAP_NEAREST:       return VK_TEX_FILTER_LINEAR;
 640                 case tcu::Sampler::LINEAR_MIPMAP_LINEAR:        return VK_TEX_FILTER_LINEAR;
 641                 default:
 642                         DE_FATAL("Illegal filter mode");
 643                         return (VkTexFilter)0;
 644
 645         }
 646 }
 647
 648 VkTexMipmapMode mapMipmapMode (tcu::Sampler::FilterMode filterMode)
 649 {
 650         DE_STATIC_ASSERT(tcu::Sampler::FILTERMODE_LAST == 6);
 651
 652         switch(filterMode)
 653         {
 654                 case tcu::Sampler::NEAREST:                                     return VK_TEX_MIPMAP_MODE_BASE;
 655                 case tcu::Sampler::LINEAR:                                      return VK_TEX_MIPMAP_MODE_BASE;
 656                 case tcu::Sampler::NEAREST_MIPMAP_NEAREST:      return VK_TEX_MIPMAP_MODE_NEAREST;
 657                 case tcu::Sampler::NEAREST_MIPMAP_LINEAR:       return VK_TEX_MIPMAP_MODE_LINEAR;
 658                 case tcu::Sampler::LINEAR_MIPMAP_NEAREST:       return VK_TEX_MIPMAP_MODE_NEAREST;
 659                 case tcu::Sampler::LINEAR_MIPMAP_LINEAR:        return VK_TEX_MIPMAP_MODE_LINEAR;
 660                 default:
 661                         DE_FATAL("Illegal filter mode");
 662                         return (VkTexMipmapMode)0;
 663         }
 664 }
 665
 666 VkTexAddressMode mapWrapMode (tcu::Sampler::WrapMode wrapMode)
 667 {
 668         switch(wrapMode)
 669         {
 670                 case tcu::Sampler::CLAMP_TO_EDGE:               return VK_TEX_ADDRESS_MODE_CLAMP;
 671                 case tcu::Sampler::CLAMP_TO_BORDER:             return VK_TEX_ADDRESS_MODE_CLAMP_BORDER;
 672                 case tcu::Sampler::REPEAT_GL:                   return VK_TEX_ADDRESS_MODE_WRAP;
 673                 case tcu::Sampler::MIRRORED_REPEAT_GL:  return VK_TEX_ADDRESS_MODE_MIRROR;
 674                 default:
 675                         DE_FATAL("Wrap mode can't be mapped to Vulkan");
 676                         return (vk::VkTexAddressMode)0;
 677         }
 678 }
 679
 680 vk::VkCompareOp mapCompareMode (tcu::Sampler::CompareMode mode)
 681 {
 682         switch(mode)
 683         {
 684                 case tcu::Sampler::COMPAREMODE_NONE:                            return vk::VK_COMPARE_OP_NEVER;
 685                 case tcu::Sampler::COMPAREMODE_LESS:                            return vk::VK_COMPARE_OP_LESS;
 686                 case tcu::Sampler::COMPAREMODE_LESS_OR_EQUAL:           return vk::VK_COMPARE_OP_LESS_EQUAL;
 687                 case tcu::Sampler::COMPAREMODE_GREATER:                         return vk::VK_COMPARE_OP_GREATER;
 688                 case tcu::Sampler::COMPAREMODE_GREATER_OR_EQUAL:        return vk::VK_COMPARE_OP_GREATER_EQUAL;
 689                 case tcu::Sampler::COMPAREMODE_EQUAL:                           return vk::VK_COMPARE_OP_EQUAL;
 690                 case tcu::Sampler::COMPAREMODE_NOT_EQUAL:                       return vk::VK_COMPARE_OP_NOT_EQUAL;
 691                 case tcu::Sampler::COMPAREMODE_ALWAYS:                          return vk::VK_COMPARE_OP_ALWAYS;
 692                 case tcu::Sampler::COMPAREMODE_NEVER:                           return vk::VK_COMPARE_OP_NEVER;
 693                 default:
 694                         DE_FATAL("Illegal compare mode");
 695                         return (vk::VkCompareOp)0;
 696         }
 697 }
 698
 699 } // vk