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      1 /*------------------------------------------------------------------------
      2  * Vulkan Conformance Tests
      3  * ------------------------
      4  *
      5  * Copyright (c) 2015 The Khronos Group Inc.
      6  * Copyright (c) 2015 Imagination Technologies Ltd.
      7  *
      8  * Licensed under the Apache License, Version 2.0 (the "License");
      9  * you may not use this file except in compliance with the License.
     10  * You may obtain a copy of the License at
     11  *
     12  *      http://www.apache.org/licenses/LICENSE-2.0
     13  *
     14  * Unless required by applicable law or agreed to in writing, software
     15  * distributed under the License is distributed on an "AS IS" BASIS,
     16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     17  * See the License for the specific language governing permissions and
     18  * limitations under the License.
     19  *
     20  *//*!
     21  * \file
     22  * \brief Utilities for vertex buffers.
     23  *//*--------------------------------------------------------------------*/
     24 
     25 #include "vktPipelineVertexUtil.hpp"
     26 #include "vkStrUtil.hpp"
     27 #include "tcuVectorUtil.hpp"
     28 #include "deStringUtil.hpp"
     29 
     30 namespace vkt
     31 {
     32 namespace pipeline
     33 {
     34 
     35 using namespace vk;
     36 
     37 deUint32 getVertexFormatSize (VkFormat format)
     38 {
     39 	switch (format)
     40 	{
     41 		case VK_FORMAT_R8_UNORM:
     42 		case VK_FORMAT_R8_SNORM:
     43 		case VK_FORMAT_R8_USCALED:
     44 		case VK_FORMAT_R8_SSCALED:
     45 		case VK_FORMAT_R8_UINT:
     46 		case VK_FORMAT_R8_SINT:
     47 		case VK_FORMAT_R8_SRGB:
     48 		case VK_FORMAT_R4G4_UNORM_PACK8:
     49 			return 1;
     50 
     51 		case VK_FORMAT_R8G8_UNORM:
     52 		case VK_FORMAT_R8G8_SNORM:
     53 		case VK_FORMAT_R8G8_USCALED:
     54 		case VK_FORMAT_R8G8_SSCALED:
     55 		case VK_FORMAT_R8G8_UINT:
     56 		case VK_FORMAT_R8G8_SINT:
     57 		case VK_FORMAT_R8G8_SRGB:
     58 		case VK_FORMAT_R16_UNORM:
     59 		case VK_FORMAT_R16_SNORM:
     60 		case VK_FORMAT_R16_USCALED:
     61 		case VK_FORMAT_R16_SSCALED:
     62 		case VK_FORMAT_R16_UINT:
     63 		case VK_FORMAT_R16_SINT:
     64 		case VK_FORMAT_R16_SFLOAT:
     65 		case VK_FORMAT_R5G6B5_UNORM_PACK16:
     66 		case VK_FORMAT_R5G5B5A1_UNORM_PACK16:
     67 			return 2;
     68 
     69 		case VK_FORMAT_R8G8B8_UNORM:
     70 		case VK_FORMAT_R8G8B8_SNORM:
     71 		case VK_FORMAT_R8G8B8_USCALED:
     72 		case VK_FORMAT_R8G8B8_SSCALED:
     73 		case VK_FORMAT_R8G8B8_UINT:
     74 		case VK_FORMAT_R8G8B8_SINT:
     75 		case VK_FORMAT_R8G8B8_SRGB:
     76 		case VK_FORMAT_B8G8R8_UNORM:
     77 		case VK_FORMAT_B8G8R8_SNORM:
     78 		case VK_FORMAT_B8G8R8_USCALED:
     79 		case VK_FORMAT_B8G8R8_SSCALED:
     80 		case VK_FORMAT_B8G8R8_UINT:
     81 		case VK_FORMAT_B8G8R8_SINT:
     82 		case VK_FORMAT_B8G8R8_SRGB:
     83 			return 3;
     84 
     85 		case VK_FORMAT_R8G8B8A8_UNORM:
     86 		case VK_FORMAT_R8G8B8A8_SNORM:
     87 		case VK_FORMAT_R8G8B8A8_USCALED:
     88 		case VK_FORMAT_R8G8B8A8_SSCALED:
     89 		case VK_FORMAT_R8G8B8A8_UINT:
     90 		case VK_FORMAT_R8G8B8A8_SINT:
     91 		case VK_FORMAT_R8G8B8A8_SRGB:
     92 		case VK_FORMAT_A2R10G10B10_UNORM_PACK32:
     93 		case VK_FORMAT_A2R10G10B10_SNORM_PACK32:
     94 		case VK_FORMAT_A2R10G10B10_USCALED_PACK32:
     95 		case VK_FORMAT_A2R10G10B10_SSCALED_PACK32:
     96 		case VK_FORMAT_A2R10G10B10_UINT_PACK32:
     97 		case VK_FORMAT_A2R10G10B10_SINT_PACK32:
     98 		case VK_FORMAT_R16G16_UNORM:
     99 		case VK_FORMAT_R16G16_SNORM:
    100 		case VK_FORMAT_R16G16_USCALED:
    101 		case VK_FORMAT_R16G16_SSCALED:
    102 		case VK_FORMAT_R16G16_UINT:
    103 		case VK_FORMAT_R16G16_SINT:
    104 		case VK_FORMAT_R16G16_SFLOAT:
    105 		case VK_FORMAT_R32_UINT:
    106 		case VK_FORMAT_R32_SINT:
    107 		case VK_FORMAT_R32_SFLOAT:
    108 		case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
    109 		case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
    110 		case VK_FORMAT_B8G8R8A8_UNORM:
    111 		case VK_FORMAT_B8G8R8A8_SNORM:
    112 		case VK_FORMAT_B8G8R8A8_USCALED:
    113 		case VK_FORMAT_B8G8R8A8_SSCALED:
    114 		case VK_FORMAT_B8G8R8A8_UINT:
    115 		case VK_FORMAT_B8G8R8A8_SINT:
    116 		case VK_FORMAT_B8G8R8A8_SRGB:
    117 		case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
    118 		case VK_FORMAT_A2B10G10R10_SNORM_PACK32:
    119 		case VK_FORMAT_A2B10G10R10_USCALED_PACK32:
    120 		case VK_FORMAT_A2B10G10R10_SSCALED_PACK32:
    121 		case VK_FORMAT_A2B10G10R10_UINT_PACK32:
    122 		case VK_FORMAT_A2B10G10R10_SINT_PACK32:
    123 			return 4;
    124 
    125 		case VK_FORMAT_R16G16B16_UNORM:
    126 		case VK_FORMAT_R16G16B16_SNORM:
    127 		case VK_FORMAT_R16G16B16_USCALED:
    128 		case VK_FORMAT_R16G16B16_SSCALED:
    129 		case VK_FORMAT_R16G16B16_UINT:
    130 		case VK_FORMAT_R16G16B16_SINT:
    131 		case VK_FORMAT_R16G16B16_SFLOAT:
    132 			return 6;
    133 
    134 		case VK_FORMAT_R16G16B16A16_UNORM:
    135 		case VK_FORMAT_R16G16B16A16_SNORM:
    136 		case VK_FORMAT_R16G16B16A16_USCALED:
    137 		case VK_FORMAT_R16G16B16A16_SSCALED:
    138 		case VK_FORMAT_R16G16B16A16_UINT:
    139 		case VK_FORMAT_R16G16B16A16_SINT:
    140 		case VK_FORMAT_R16G16B16A16_SFLOAT:
    141 		case VK_FORMAT_R32G32_UINT:
    142 		case VK_FORMAT_R32G32_SINT:
    143 		case VK_FORMAT_R32G32_SFLOAT:
    144 		case VK_FORMAT_R64_SFLOAT:
    145 			return 8;
    146 
    147 		case VK_FORMAT_R32G32B32_UINT:
    148 		case VK_FORMAT_R32G32B32_SINT:
    149 		case VK_FORMAT_R32G32B32_SFLOAT:
    150 			return 12;
    151 
    152 		case VK_FORMAT_R32G32B32A32_UINT:
    153 		case VK_FORMAT_R32G32B32A32_SINT:
    154 		case VK_FORMAT_R32G32B32A32_SFLOAT:
    155 		case VK_FORMAT_R64G64_SFLOAT:
    156 			return 16;
    157 
    158 		case VK_FORMAT_R64G64B64_SFLOAT:
    159 			return 24;
    160 
    161 		case VK_FORMAT_R64G64B64A64_SFLOAT:
    162 			return 32;
    163 
    164 		default:
    165 			break;
    166 	}
    167 
    168 	DE_ASSERT(false);
    169 	return 0;
    170 }
    171 
    172 deUint32 getVertexFormatComponentCount (VkFormat format)
    173 {
    174 	switch (format)
    175 	{
    176 		case VK_FORMAT_R8_USCALED:
    177 		case VK_FORMAT_R8_UNORM:
    178 		case VK_FORMAT_R8_UINT:
    179 		case VK_FORMAT_R8_SSCALED:
    180 		case VK_FORMAT_R8_SRGB:
    181 		case VK_FORMAT_R8_SNORM:
    182 		case VK_FORMAT_R8_SINT:
    183 		case VK_FORMAT_R16_USCALED:
    184 		case VK_FORMAT_R16_UNORM:
    185 		case VK_FORMAT_R16_UINT:
    186 		case VK_FORMAT_R16_SSCALED:
    187 		case VK_FORMAT_R16_SNORM:
    188 		case VK_FORMAT_R16_SINT:
    189 		case VK_FORMAT_R16_SFLOAT:
    190 		case VK_FORMAT_R32_UINT:
    191 		case VK_FORMAT_R32_SINT:
    192 		case VK_FORMAT_R32_SFLOAT:
    193 		case VK_FORMAT_R64_SFLOAT:
    194 			return 1;
    195 
    196 		case VK_FORMAT_R4G4_UNORM_PACK8:
    197 		case VK_FORMAT_R8G8_UNORM:
    198 		case VK_FORMAT_R8G8_SNORM:
    199 		case VK_FORMAT_R8G8_USCALED:
    200 		case VK_FORMAT_R8G8_SSCALED:
    201 		case VK_FORMAT_R8G8_UINT:
    202 		case VK_FORMAT_R8G8_SINT:
    203 		case VK_FORMAT_R8G8_SRGB:
    204 		case VK_FORMAT_R16G16_UNORM:
    205 		case VK_FORMAT_R16G16_SNORM:
    206 		case VK_FORMAT_R16G16_USCALED:
    207 		case VK_FORMAT_R16G16_SSCALED:
    208 		case VK_FORMAT_R16G16_UINT:
    209 		case VK_FORMAT_R16G16_SINT:
    210 		case VK_FORMAT_R16G16_SFLOAT:
    211 		case VK_FORMAT_R32G32_UINT:
    212 		case VK_FORMAT_R32G32_SINT:
    213 		case VK_FORMAT_R32G32_SFLOAT:
    214 		case VK_FORMAT_R64G64_SFLOAT:
    215 			return 2;
    216 
    217 		case VK_FORMAT_R8G8B8_UNORM:
    218 		case VK_FORMAT_R8G8B8_SNORM:
    219 		case VK_FORMAT_R8G8B8_USCALED:
    220 		case VK_FORMAT_R8G8B8_SSCALED:
    221 		case VK_FORMAT_R8G8B8_UINT:
    222 		case VK_FORMAT_R8G8B8_SINT:
    223 		case VK_FORMAT_R8G8B8_SRGB:
    224 		case VK_FORMAT_B8G8R8_UNORM:
    225 		case VK_FORMAT_B8G8R8_SNORM:
    226 		case VK_FORMAT_B8G8R8_USCALED:
    227 		case VK_FORMAT_B8G8R8_SSCALED:
    228 		case VK_FORMAT_B8G8R8_UINT:
    229 		case VK_FORMAT_B8G8R8_SINT:
    230 		case VK_FORMAT_B8G8R8_SRGB:
    231 		case VK_FORMAT_R16G16B16_UNORM:
    232 		case VK_FORMAT_R16G16B16_SNORM:
    233 		case VK_FORMAT_R16G16B16_USCALED:
    234 		case VK_FORMAT_R16G16B16_SSCALED:
    235 		case VK_FORMAT_R16G16B16_UINT:
    236 		case VK_FORMAT_R16G16B16_SINT:
    237 		case VK_FORMAT_R16G16B16_SFLOAT:
    238 		case VK_FORMAT_R32G32B32_UINT:
    239 		case VK_FORMAT_R32G32B32_SINT:
    240 		case VK_FORMAT_R32G32B32_SFLOAT:
    241 		case VK_FORMAT_R64G64B64_SFLOAT:
    242 		case VK_FORMAT_R5G6B5_UNORM_PACK16:
    243 		case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
    244 		case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
    245 			return 3;
    246 
    247 		case VK_FORMAT_R8G8B8A8_UNORM:
    248 		case VK_FORMAT_R8G8B8A8_SNORM:
    249 		case VK_FORMAT_R8G8B8A8_USCALED:
    250 		case VK_FORMAT_R8G8B8A8_SSCALED:
    251 		case VK_FORMAT_R8G8B8A8_UINT:
    252 		case VK_FORMAT_R8G8B8A8_SINT:
    253 		case VK_FORMAT_R8G8B8A8_SRGB:
    254 		case VK_FORMAT_B8G8R8A8_UNORM:
    255 		case VK_FORMAT_B8G8R8A8_SNORM:
    256 		case VK_FORMAT_B8G8R8A8_USCALED:
    257 		case VK_FORMAT_B8G8R8A8_SSCALED:
    258 		case VK_FORMAT_B8G8R8A8_UINT:
    259 		case VK_FORMAT_B8G8R8A8_SINT:
    260 		case VK_FORMAT_B8G8R8A8_SRGB:
    261 		case VK_FORMAT_R16G16B16A16_UNORM:
    262 		case VK_FORMAT_R16G16B16A16_SNORM:
    263 		case VK_FORMAT_R16G16B16A16_USCALED:
    264 		case VK_FORMAT_R16G16B16A16_SSCALED:
    265 		case VK_FORMAT_R16G16B16A16_UINT:
    266 		case VK_FORMAT_R16G16B16A16_SINT:
    267 		case VK_FORMAT_R16G16B16A16_SFLOAT:
    268 		case VK_FORMAT_R32G32B32A32_UINT:
    269 		case VK_FORMAT_R32G32B32A32_SINT:
    270 		case VK_FORMAT_R32G32B32A32_SFLOAT:
    271 		case VK_FORMAT_R64G64B64A64_SFLOAT:
    272 		case VK_FORMAT_R5G5B5A1_UNORM_PACK16:
    273 		case VK_FORMAT_A2R10G10B10_UNORM_PACK32:
    274 		case VK_FORMAT_A2R10G10B10_SNORM_PACK32:
    275 		case VK_FORMAT_A2R10G10B10_USCALED_PACK32:
    276 		case VK_FORMAT_A2R10G10B10_SSCALED_PACK32:
    277 		case VK_FORMAT_A2R10G10B10_UINT_PACK32:
    278 		case VK_FORMAT_A2R10G10B10_SINT_PACK32:
    279 		case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
    280 		case VK_FORMAT_A2B10G10R10_SNORM_PACK32:
    281 		case VK_FORMAT_A2B10G10R10_USCALED_PACK32:
    282 		case VK_FORMAT_A2B10G10R10_SSCALED_PACK32:
    283 		case VK_FORMAT_A2B10G10R10_UINT_PACK32:
    284 		case VK_FORMAT_A2B10G10R10_SINT_PACK32:
    285 			return 4;
    286 
    287 		default:
    288 			break;
    289 	}
    290 
    291 	DE_ASSERT(false);
    292 	return 0;
    293 }
    294 
    295 deUint32 getVertexFormatComponentSize (VkFormat format)
    296 {
    297 	switch (format)
    298 	{
    299 		case VK_FORMAT_R8_UNORM:
    300 		case VK_FORMAT_R8_SNORM:
    301 		case VK_FORMAT_R8_USCALED:
    302 		case VK_FORMAT_R8_SSCALED:
    303 		case VK_FORMAT_R8_UINT:
    304 		case VK_FORMAT_R8_SINT:
    305 		case VK_FORMAT_R8_SRGB:
    306 		case VK_FORMAT_R8G8_UNORM:
    307 		case VK_FORMAT_R8G8_SNORM:
    308 		case VK_FORMAT_R8G8_USCALED:
    309 		case VK_FORMAT_R8G8_SSCALED:
    310 		case VK_FORMAT_R8G8_UINT:
    311 		case VK_FORMAT_R8G8_SINT:
    312 		case VK_FORMAT_R8G8_SRGB:
    313 		case VK_FORMAT_R8G8B8_UNORM:
    314 		case VK_FORMAT_R8G8B8_SNORM:
    315 		case VK_FORMAT_R8G8B8_USCALED:
    316 		case VK_FORMAT_R8G8B8_SSCALED:
    317 		case VK_FORMAT_R8G8B8_UINT:
    318 		case VK_FORMAT_R8G8B8_SINT:
    319 		case VK_FORMAT_R8G8B8_SRGB:
    320 		case VK_FORMAT_B8G8R8_UNORM:
    321 		case VK_FORMAT_B8G8R8_SNORM:
    322 		case VK_FORMAT_B8G8R8_USCALED:
    323 		case VK_FORMAT_B8G8R8_SSCALED:
    324 		case VK_FORMAT_B8G8R8_UINT:
    325 		case VK_FORMAT_B8G8R8_SINT:
    326 		case VK_FORMAT_B8G8R8_SRGB:
    327 		case VK_FORMAT_R8G8B8A8_UNORM:
    328 		case VK_FORMAT_R8G8B8A8_SNORM:
    329 		case VK_FORMAT_R8G8B8A8_USCALED:
    330 		case VK_FORMAT_R8G8B8A8_SSCALED:
    331 		case VK_FORMAT_R8G8B8A8_UINT:
    332 		case VK_FORMAT_R8G8B8A8_SINT:
    333 		case VK_FORMAT_R8G8B8A8_SRGB:
    334 		case VK_FORMAT_B8G8R8A8_UNORM:
    335 		case VK_FORMAT_B8G8R8A8_SNORM:
    336 		case VK_FORMAT_B8G8R8A8_USCALED:
    337 		case VK_FORMAT_B8G8R8A8_SSCALED:
    338 		case VK_FORMAT_B8G8R8A8_UINT:
    339 		case VK_FORMAT_B8G8R8A8_SINT:
    340 		case VK_FORMAT_B8G8R8A8_SRGB:
    341 			return 1;
    342 
    343 		case VK_FORMAT_R16_UNORM:
    344 		case VK_FORMAT_R16_SNORM:
    345 		case VK_FORMAT_R16_USCALED:
    346 		case VK_FORMAT_R16_SSCALED:
    347 		case VK_FORMAT_R16_UINT:
    348 		case VK_FORMAT_R16_SINT:
    349 		case VK_FORMAT_R16_SFLOAT:
    350 		case VK_FORMAT_R16G16_UNORM:
    351 		case VK_FORMAT_R16G16_SNORM:
    352 		case VK_FORMAT_R16G16_USCALED:
    353 		case VK_FORMAT_R16G16_SSCALED:
    354 		case VK_FORMAT_R16G16_UINT:
    355 		case VK_FORMAT_R16G16_SINT:
    356 		case VK_FORMAT_R16G16_SFLOAT:
    357 		case VK_FORMAT_R16G16B16_UNORM:
    358 		case VK_FORMAT_R16G16B16_SNORM:
    359 		case VK_FORMAT_R16G16B16_USCALED:
    360 		case VK_FORMAT_R16G16B16_SSCALED:
    361 		case VK_FORMAT_R16G16B16_UINT:
    362 		case VK_FORMAT_R16G16B16_SINT:
    363 		case VK_FORMAT_R16G16B16_SFLOAT:
    364 		case VK_FORMAT_R16G16B16A16_UNORM:
    365 		case VK_FORMAT_R16G16B16A16_SNORM:
    366 		case VK_FORMAT_R16G16B16A16_USCALED:
    367 		case VK_FORMAT_R16G16B16A16_SSCALED:
    368 		case VK_FORMAT_R16G16B16A16_UINT:
    369 		case VK_FORMAT_R16G16B16A16_SINT:
    370 		case VK_FORMAT_R16G16B16A16_SFLOAT:
    371 			return 2;
    372 
    373 		case VK_FORMAT_R32_UINT:
    374 		case VK_FORMAT_R32_SINT:
    375 		case VK_FORMAT_R32_SFLOAT:
    376 		case VK_FORMAT_R32G32_UINT:
    377 		case VK_FORMAT_R32G32_SINT:
    378 		case VK_FORMAT_R32G32_SFLOAT:
    379 		case VK_FORMAT_R32G32B32_UINT:
    380 		case VK_FORMAT_R32G32B32_SINT:
    381 		case VK_FORMAT_R32G32B32_SFLOAT:
    382 		case VK_FORMAT_R32G32B32A32_UINT:
    383 		case VK_FORMAT_R32G32B32A32_SINT:
    384 		case VK_FORMAT_R32G32B32A32_SFLOAT:
    385 			return 4;
    386 
    387 		case VK_FORMAT_R64_SFLOAT:
    388 		case VK_FORMAT_R64G64_SFLOAT:
    389 		case VK_FORMAT_R64G64B64_SFLOAT:
    390 		case VK_FORMAT_R64G64B64A64_SFLOAT:
    391 			return 8;
    392 
    393 		default:
    394 			break;
    395 	}
    396 
    397 	DE_ASSERT(false);
    398 	return 0;
    399 }
    400 
    401 bool isVertexFormatComponentOrderBGR (VkFormat format)
    402 {
    403 	switch (format)
    404 	{
    405 		case VK_FORMAT_B8G8R8_UNORM:
    406 		case VK_FORMAT_B8G8R8_SNORM:
    407 		case VK_FORMAT_B8G8R8_USCALED:
    408 		case VK_FORMAT_B8G8R8_SSCALED:
    409 		case VK_FORMAT_B8G8R8_UINT:
    410 		case VK_FORMAT_B8G8R8_SINT:
    411 		case VK_FORMAT_B8G8R8_SRGB:
    412 		case VK_FORMAT_B8G8R8A8_UNORM:
    413 		case VK_FORMAT_B8G8R8A8_SNORM:
    414 		case VK_FORMAT_B8G8R8A8_USCALED:
    415 		case VK_FORMAT_B8G8R8A8_SSCALED:
    416 		case VK_FORMAT_B8G8R8A8_UINT:
    417 		case VK_FORMAT_B8G8R8A8_SINT:
    418 		case VK_FORMAT_B8G8R8A8_SRGB:
    419 		case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
    420 		case VK_FORMAT_A2B10G10R10_SNORM_PACK32:
    421 		case VK_FORMAT_A2B10G10R10_USCALED_PACK32:
    422 		case VK_FORMAT_A2B10G10R10_SSCALED_PACK32:
    423 		case VK_FORMAT_A2B10G10R10_UINT_PACK32:
    424 		case VK_FORMAT_A2B10G10R10_SINT_PACK32:
    425 			return true;
    426 
    427 		default:
    428 			break;
    429 	}
    430 	return false;
    431 }
    432 
    433 bool isVertexFormatSint (VkFormat format)
    434 {
    435 	switch (format)
    436 	{
    437 		case VK_FORMAT_R8_SINT:
    438 		case VK_FORMAT_R8G8_SINT:
    439 		case VK_FORMAT_R16_SINT:
    440 		case VK_FORMAT_R8G8B8_SINT:
    441 		case VK_FORMAT_B8G8R8_SINT:
    442 		case VK_FORMAT_R8G8B8A8_SINT:
    443 		case VK_FORMAT_A2R10G10B10_UNORM_PACK32:
    444 		case VK_FORMAT_R16G16_SINT:
    445 		case VK_FORMAT_R32_SINT:
    446 		case VK_FORMAT_B8G8R8A8_SINT:
    447 		case VK_FORMAT_A2B10G10R10_SINT_PACK32:
    448 		case VK_FORMAT_R16G16B16_SINT:
    449 		case VK_FORMAT_R16G16B16A16_SINT:
    450 		case VK_FORMAT_R32G32_SINT:
    451 		case VK_FORMAT_R32G32B32_SINT:
    452 		case VK_FORMAT_R32G32B32A32_SINT:
    453 			return true;
    454 
    455 		default:
    456 			break;
    457 	}
    458 
    459 	return false;
    460 }
    461 
    462 bool isVertexFormatUint (VkFormat format)
    463 {
    464 	switch (format)
    465 	{
    466 		case VK_FORMAT_R8_UINT:
    467 		case VK_FORMAT_R8G8_UINT:
    468 		case VK_FORMAT_R16_UINT:
    469 		case VK_FORMAT_R8G8B8_UINT:
    470 		case VK_FORMAT_B8G8R8_UINT:
    471 		case VK_FORMAT_R8G8B8A8_UINT:
    472 		case VK_FORMAT_A2R10G10B10_UINT_PACK32:
    473 		case VK_FORMAT_R16G16_UINT:
    474 		case VK_FORMAT_R32_UINT:
    475 		case VK_FORMAT_B8G8R8A8_UINT:
    476 		case VK_FORMAT_A2B10G10R10_UINT_PACK32:
    477 		case VK_FORMAT_R16G16B16_UINT:
    478 		case VK_FORMAT_R16G16B16A16_UINT:
    479 		case VK_FORMAT_R32G32_UINT:
    480 		case VK_FORMAT_R32G32B32_UINT:
    481 		case VK_FORMAT_R32G32B32A32_UINT:
    482 			return true;
    483 
    484 		default:
    485 			break;
    486 	}
    487 
    488 	return false;
    489 
    490 }
    491 
    492 bool isVertexFormatSfloat (VkFormat format)
    493 {
    494 	switch (format)
    495 	{
    496 		case VK_FORMAT_R16_SFLOAT:
    497 		case VK_FORMAT_R16G16_SFLOAT:
    498 		case VK_FORMAT_R32_SFLOAT:
    499 		case VK_FORMAT_R16G16B16_SFLOAT:
    500 		case VK_FORMAT_R16G16B16A16_SFLOAT:
    501 		case VK_FORMAT_R32G32_SFLOAT:
    502 		case VK_FORMAT_R64_SFLOAT:
    503 		case VK_FORMAT_R32G32B32_SFLOAT:
    504 		case VK_FORMAT_R32G32B32A32_SFLOAT:
    505 		case VK_FORMAT_R64G64_SFLOAT:
    506 		case VK_FORMAT_R64G64B64_SFLOAT:
    507 		case VK_FORMAT_R64G64B64A64_SFLOAT:
    508 			return true;
    509 
    510 		default:
    511 			break;
    512 	}
    513 
    514 	return false;
    515 
    516 }
    517 
    518 bool isVertexFormatUfloat (VkFormat format)
    519 {
    520 	switch (format)
    521 	{
    522 		case VK_FORMAT_B10G11R11_UFLOAT_PACK32:
    523 		case VK_FORMAT_E5B9G9R9_UFLOAT_PACK32:
    524 			return true;
    525 
    526 		default:
    527 			break;
    528 	}
    529 
    530 	return false;
    531 
    532 }
    533 
    534 bool isVertexFormatUnorm (VkFormat format)
    535 {
    536 	switch (format)
    537 	{
    538 		case VK_FORMAT_R8_UNORM:
    539 		case VK_FORMAT_R4G4_UNORM_PACK8:
    540 		case VK_FORMAT_R8G8_UNORM:
    541 		case VK_FORMAT_R16_UNORM:
    542 		case VK_FORMAT_R5G6B5_UNORM_PACK16:
    543 		case VK_FORMAT_R5G5B5A1_UNORM_PACK16:
    544 		case VK_FORMAT_R8G8B8_UNORM:
    545 		case VK_FORMAT_B8G8R8_UNORM:
    546 		case VK_FORMAT_R8G8B8A8_UNORM:
    547 		case VK_FORMAT_A2R10G10B10_UNORM_PACK32:
    548 		case VK_FORMAT_R16G16_UNORM:
    549 		case VK_FORMAT_B8G8R8A8_UNORM:
    550 		case VK_FORMAT_A2B10G10R10_UNORM_PACK32:
    551 		case VK_FORMAT_R16G16B16_UNORM:
    552 		case VK_FORMAT_R16G16B16A16_UNORM:
    553 			return true;
    554 
    555 		default:
    556 			break;
    557 	}
    558 
    559 	return false;
    560 
    561 }
    562 
    563 bool isVertexFormatSnorm (VkFormat format)
    564 {
    565 	switch (format)
    566 	{
    567 		case VK_FORMAT_R8_SNORM:
    568 		case VK_FORMAT_R8G8_SNORM:
    569 		case VK_FORMAT_R16_SNORM:
    570 		case VK_FORMAT_R8G8B8_SNORM:
    571 		case VK_FORMAT_B8G8R8_SNORM:
    572 		case VK_FORMAT_R8G8B8A8_SNORM:
    573 		case VK_FORMAT_A2R10G10B10_SNORM_PACK32:
    574 		case VK_FORMAT_R16G16_SNORM:
    575 		case VK_FORMAT_B8G8R8A8_SNORM:
    576 		case VK_FORMAT_A2B10G10R10_SNORM_PACK32:
    577 		case VK_FORMAT_R16G16B16_SNORM:
    578 		case VK_FORMAT_R16G16B16A16_SNORM:
    579 			return true;
    580 
    581 		default:
    582 			break;
    583 	}
    584 
    585 	return false;
    586 
    587 }
    588 
    589 bool isVertexFormatSRGB (VkFormat format)
    590 {
    591 	switch (format)
    592 	{
    593 		case VK_FORMAT_R8_SRGB:
    594 		case VK_FORMAT_R8G8_SRGB:
    595 		case VK_FORMAT_R8G8B8_SRGB:
    596 		case VK_FORMAT_B8G8R8_SRGB:
    597 		case VK_FORMAT_R8G8B8A8_SRGB:
    598 		case VK_FORMAT_B8G8R8A8_SRGB:
    599 			return true;
    600 
    601 		default:
    602 			break;
    603 	}
    604 
    605 	return false;
    606 
    607 }
    608 
    609 bool isVertexFormatSscaled (VkFormat format)
    610 {
    611 	switch (format)
    612 	{
    613 		case VK_FORMAT_R8_SSCALED:
    614 		case VK_FORMAT_R8G8_SSCALED:
    615 		case VK_FORMAT_R16_SSCALED:
    616 		case VK_FORMAT_R8G8B8_SSCALED:
    617 		case VK_FORMAT_B8G8R8_SSCALED:
    618 		case VK_FORMAT_R8G8B8A8_SSCALED:
    619 		case VK_FORMAT_A2R10G10B10_SSCALED_PACK32:
    620 		case VK_FORMAT_R16G16_SSCALED:
    621 		case VK_FORMAT_B8G8R8A8_SSCALED:
    622 		case VK_FORMAT_A2B10G10R10_SSCALED_PACK32:
    623 		case VK_FORMAT_R16G16B16_SSCALED:
    624 		case VK_FORMAT_R16G16B16A16_SSCALED:
    625 			return true;
    626 
    627 		default:
    628 			break;
    629 	}
    630 
    631 	return false;
    632 
    633 }
    634 
    635 bool isVertexFormatUscaled (VkFormat format)
    636 {
    637 	switch (format)
    638 	{
    639 		case VK_FORMAT_R8_USCALED:
    640 		case VK_FORMAT_R8G8_USCALED:
    641 		case VK_FORMAT_R16_USCALED:
    642 		case VK_FORMAT_A1R5G5B5_UNORM_PACK16:
    643 		case VK_FORMAT_R8G8B8_USCALED:
    644 		case VK_FORMAT_B8G8R8_USCALED:
    645 		case VK_FORMAT_R8G8B8A8_USCALED:
    646 		case VK_FORMAT_A2R10G10B10_USCALED_PACK32:
    647 		case VK_FORMAT_R16G16_USCALED:
    648 		case VK_FORMAT_B8G8R8A8_USCALED:
    649 		case VK_FORMAT_A2B10G10R10_USCALED_PACK32:
    650 		case VK_FORMAT_R16G16B16_USCALED:
    651 		case VK_FORMAT_R16G16B16A16_USCALED:
    652 			return true;
    653 
    654 		default:
    655 			break;
    656 	}
    657 
    658 	return false;
    659 
    660 }
    661 
    662 bool isVertexFormatDouble (VkFormat format)
    663 {
    664 	switch (format)
    665 	{
    666 		case VK_FORMAT_R64_UINT:
    667 		case VK_FORMAT_R64_SINT:
    668 		case VK_FORMAT_R64_SFLOAT:
    669 		case VK_FORMAT_R64G64_UINT:
    670 		case VK_FORMAT_R64G64_SINT:
    671 		case VK_FORMAT_R64G64_SFLOAT:
    672 		case VK_FORMAT_R64G64B64_UINT:
    673 		case VK_FORMAT_R64G64B64_SINT:
    674 		case VK_FORMAT_R64G64B64_SFLOAT:
    675 		case VK_FORMAT_R64G64B64A64_UINT:
    676 		case VK_FORMAT_R64G64B64A64_SINT:
    677 		case VK_FORMAT_R64G64B64A64_SFLOAT:
    678 			return true;
    679 
    680 		default:
    681 			break;
    682 	}
    683 	return false;
    684 }
    685 
    686 std::vector<Vertex4RGBA> createOverlappingQuads (void)
    687 {
    688 	using tcu::Vec2;
    689 	using tcu::Vec4;
    690 
    691 	std::vector<Vertex4RGBA> vertices;
    692 
    693 	const Vec2 translations[4] =
    694 	{
    695 		Vec2(-0.25f, -0.25f),
    696 		Vec2(-1.0f, -0.25f),
    697 		Vec2(-1.0f, -1.0f),
    698 		Vec2(-0.25f, -1.0f)
    699 	};
    700 
    701 	const Vec4 quadColors[4] =
    702 	{
    703 		Vec4(1.0f, 0.0f, 0.0f, 1.0),
    704 		Vec4(0.0f, 1.0f, 0.0f, 1.0),
    705 		Vec4(0.0f, 0.0f, 1.0f, 1.0),
    706 		Vec4(1.0f, 0.0f, 1.0f, 1.0)
    707 	};
    708 
    709 	const float quadSize = 1.25f;
    710 
    711 	for (int quadNdx = 0; quadNdx < 4; quadNdx++)
    712 	{
    713 		const Vec2&	translation	= translations[quadNdx];
    714 		const Vec4&	color		= quadColors[quadNdx];
    715 
    716 		const Vertex4RGBA lowerLeftVertex =
    717 		{
    718 			Vec4(translation.x(), translation.y(), 0.0f, 1.0f),
    719 			color
    720 		};
    721 		const Vertex4RGBA upperLeftVertex =
    722 		{
    723 			Vec4(translation.x(), translation.y() + quadSize, 0.0f, 1.0f),
    724 			color
    725 		};
    726 		const Vertex4RGBA lowerRightVertex =
    727 		{
    728 			Vec4(translation.x() + quadSize, translation.y(), 0.0f, 1.0f),
    729 			color
    730 		};
    731 		const Vertex4RGBA upperRightVertex =
    732 		{
    733 			Vec4(translation.x() + quadSize, translation.y() + quadSize, 0.0f, 1.0f),
    734 			color
    735 		};
    736 
    737 		// Triangle 1, CCW
    738 		vertices.push_back(lowerLeftVertex);
    739 		vertices.push_back(lowerRightVertex);
    740 		vertices.push_back(upperLeftVertex);
    741 
    742 		// Triangle 2, CW
    743 		vertices.push_back(lowerRightVertex);
    744 		vertices.push_back(upperLeftVertex);
    745 		vertices.push_back(upperRightVertex);
    746 	}
    747 
    748 	return vertices;
    749 }
    750 
    751 std::vector<Vertex4Tex4> createFullscreenQuad (void)
    752 {
    753 	using tcu::Vec4;
    754 
    755 	const Vertex4Tex4 lowerLeftVertex =
    756 	{
    757 		Vec4(-1.0f, -1.0f, 0.0f, 1.0f),
    758 		Vec4(0.0f, 0.0f, 0.0f, 0.0f)
    759 	};
    760 	const Vertex4Tex4 upperLeftVertex =
    761 	{
    762 		Vec4(-1.0f, 1.0f, 0.0f, 1.0f),
    763 		Vec4(0.0f, 1.0f, 0.0f, 0.0f)
    764 	};
    765 	const Vertex4Tex4 lowerRightVertex =
    766 	{
    767 		Vec4(1.0f, -1.0f, 0.0f, 1.0f),
    768 		Vec4(1.0f, 0.0f, 0.0f, 0.0f)
    769 	};
    770 	const Vertex4Tex4 upperRightVertex =
    771 	{
    772 		Vec4(1.0f, 1.0f, 0.0f, 1.0f),
    773 		Vec4(1.0f, 1.0f, 0.0f, 0.0f)
    774 	};
    775 
    776 	const Vertex4Tex4 vertices[6] =
    777 	{
    778 		lowerLeftVertex,
    779 		lowerRightVertex,
    780 		upperLeftVertex,
    781 
    782 		upperLeftVertex,
    783 		lowerRightVertex,
    784 		upperRightVertex
    785 	};
    786 
    787 	return std::vector<Vertex4Tex4>(vertices, vertices + DE_LENGTH_OF_ARRAY(vertices));
    788 }
    789 
    790 std::vector<Vertex4Tex4> createQuadMosaic (int rows, int columns)
    791 {
    792 	using tcu::Vec4;
    793 
    794 	DE_ASSERT(rows >= 1);
    795 	DE_ASSERT(columns >= 1);
    796 
    797 	std::vector<Vertex4Tex4>	vertices;
    798 	const float					rowSize		= 2.0f / (float)rows;
    799 	const float					columnSize	= 2.0f / (float)columns;
    800 	int							arrayIndex	= 0;
    801 
    802 	for (int rowNdx = 0; rowNdx < rows; rowNdx++)
    803 	{
    804 		for (int columnNdx = 0; columnNdx < columns; columnNdx++)
    805 		{
    806 			const Vertex4Tex4 lowerLeftVertex =
    807 			{
    808 				Vec4(-1.0f + (float)columnNdx * columnSize, -1.0f + (float)rowNdx * rowSize, 0.0f, 1.0f),
    809 				Vec4(0.0f, 0.0f, (float)arrayIndex, 0.0f)
    810 			};
    811 			const Vertex4Tex4 upperLeftVertex =
    812 			{
    813 				Vec4(lowerLeftVertex.position.x(), lowerLeftVertex.position.y() + rowSize, 0.0f, 1.0f),
    814 				Vec4(0.0f, 1.0f, (float)arrayIndex, 0.0f)
    815 			};
    816 			const Vertex4Tex4 lowerRightVertex =
    817 			{
    818 				Vec4(lowerLeftVertex.position.x() + columnSize, lowerLeftVertex.position.y(), 0.0f, 1.0f),
    819 				Vec4(1.0f, 0.0f, (float)arrayIndex, 0.0f)
    820 			};
    821 			const Vertex4Tex4 upperRightVertex =
    822 			{
    823 				Vec4(lowerLeftVertex.position.x() + columnSize, lowerLeftVertex.position.y() + rowSize, 0.0f, 1.0f),
    824 				Vec4(1.0f, 1.0f, (float)arrayIndex, 0.0f)
    825 			};
    826 
    827 			vertices.push_back(lowerLeftVertex);
    828 			vertices.push_back(lowerRightVertex);
    829 			vertices.push_back(upperLeftVertex);
    830 			vertices.push_back(upperLeftVertex);
    831 			vertices.push_back(lowerRightVertex);
    832 			vertices.push_back(upperRightVertex);
    833 
    834 			arrayIndex++;
    835 		}
    836 	}
    837 
    838 	return vertices;
    839 }
    840 
    841 std::vector<Vertex4Tex4> createQuadMosaicCube (void)
    842 {
    843 	using tcu::Vec3;
    844 
    845 	static const Vec3 texCoordsCube[8] =
    846 	{
    847 		Vec3(-1.0f, -1.0f, -1.0f),	// 0: -X, -Y, -Z
    848 		Vec3(1.0f, -1.0f, -1.0f),	// 1:  X, -Y, -Z
    849 		Vec3(1.0f, -1.0f, 1.0f),	// 2:  X, -Y,  Z
    850 		Vec3(-1.0f, -1.0f, 1.0f),	// 3: -X, -Y,  Z
    851 
    852 		Vec3(-1.0f, 1.0f, -1.0f),	// 4: -X,  Y, -Z
    853 		Vec3(1.0f, 1.0f, -1.0f),	// 5:  X,  Y, -Z
    854 		Vec3(1.0f, 1.0f, 1.0f),		// 6:  X,  Y,  Z
    855 		Vec3(-1.0f, 1.0f, 1.0f),	// 7: -X,  Y,  Z
    856 	};
    857 
    858 	static const int texCoordCubeIndices[6][6] =
    859 	{
    860 		{ 6, 5, 2, 2, 5, 1 },		// +X face
    861 		{ 3, 0, 7, 7, 0, 4 },		// -X face
    862 		{ 4, 5, 7, 7, 5, 6 },		// +Y face
    863 		{ 3, 2, 0, 0, 2, 1 },		// -Y face
    864 		{ 2, 3, 6, 6, 3, 7 },		// +Z face
    865 		{ 0, 1, 4, 4, 1, 5 }		// -Z face
    866 	};
    867 
    868 	// Create 6 quads and set appropriate texture coordinates for cube mapping
    869 
    870 	std::vector<Vertex4Tex4>			vertices	= createQuadMosaic(2, 3);
    871 	std::vector<Vertex4Tex4>::iterator	vertexItr	= vertices.begin();
    872 
    873 	for (int quadNdx = 0; quadNdx < 6; quadNdx++)
    874 	{
    875 		for (int vertexNdx = 0; vertexNdx < 6; vertexNdx++)
    876 		{
    877 			vertexItr->texCoord.xyz() = texCoordsCube[texCoordCubeIndices[quadNdx][vertexNdx]];
    878 			vertexItr++;
    879 		}
    880 	}
    881 
    882 	return vertices;
    883 }
    884 
    885 std::vector<Vertex4Tex4> createQuadMosaicCubeArray (int faceArrayIndices[6])
    886 {
    887 	std::vector<Vertex4Tex4>			vertices	= createQuadMosaicCube();
    888 	std::vector<Vertex4Tex4>::iterator	vertexItr	= vertices.begin();
    889 
    890 	for (int quadNdx = 0; quadNdx < 6; quadNdx++)
    891 	{
    892 		for (int vertexNdx = 0; vertexNdx < 6; vertexNdx++)
    893 		{
    894 			vertexItr->texCoord.w() = (float)faceArrayIndices[quadNdx];
    895 			vertexItr++;
    896 		}
    897 	}
    898 
    899 	return vertices;
    900 }
    901 
    902 std::vector<Vertex4Tex4> createTestQuadMosaic (vk::VkImageViewType viewType)
    903 {
    904 	std::vector<Vertex4Tex4> vertices;
    905 
    906 	switch (viewType)
    907 	{
    908 		case vk::VK_IMAGE_VIEW_TYPE_1D:
    909 		case vk::VK_IMAGE_VIEW_TYPE_2D:
    910 			vertices = createFullscreenQuad();
    911 			break;
    912 
    913 		case vk::VK_IMAGE_VIEW_TYPE_1D_ARRAY:
    914 			vertices = createQuadMosaic(2, 3);
    915 
    916 			// Set up array indices
    917 			for (size_t quadNdx = 0; quadNdx < 6; quadNdx++)
    918 				for (size_t vertexNdx = 0; vertexNdx < 6; vertexNdx++)
    919 					vertices[quadNdx * 6 + vertexNdx].texCoord.y() = (float)quadNdx;
    920 
    921 			break;
    922 
    923 		case vk::VK_IMAGE_VIEW_TYPE_2D_ARRAY:
    924 			vertices = createQuadMosaic(2, 3);
    925 			break;
    926 
    927 		case vk::VK_IMAGE_VIEW_TYPE_3D:
    928 			vertices = createQuadMosaic(2, 3);
    929 
    930 			// Use z between 0.0 and 1.0.
    931 			for (size_t vertexNdx = 0; vertexNdx < vertices.size(); vertexNdx++)
    932 			{
    933 				vertices[vertexNdx].texCoord.z() /= 5.0f;
    934 				vertices[vertexNdx].texCoord.z() -= 0.001f; // Substract small value to correct floating-point errors at the boundaries between slices
    935 			}
    936 
    937 			break;
    938 
    939 		case vk::VK_IMAGE_VIEW_TYPE_CUBE:
    940 			vertices = createQuadMosaicCube();
    941 			break;
    942 
    943 		case vk::VK_IMAGE_VIEW_TYPE_CUBE_ARRAY:
    944 			{
    945 				int faceArrayIndices[6] = { 0, 1, 2, 3, 4, 5 };
    946 				vertices = createQuadMosaicCubeArray(faceArrayIndices);
    947 			}
    948 			break;
    949 
    950 		default:
    951 			DE_ASSERT(false);
    952 			break;
    953 	}
    954 
    955 	return vertices;
    956 }
    957 
    958 } // pipeline
    959 } // vkt
    960