| 259 | /* ----- Textures ----- */ |
| 260 | |
| 261 | Texture* VKRenderSystem::CreateTexture(const TextureDescriptor& textureDesc, const SrcImageDescriptor* imageDesc) |
| 262 | { |
| 263 | const auto& cfg = GetConfiguration(); |
| 264 | |
| 265 | /* Determine size of image for staging buffer */ |
| 266 | const auto imageSize = NumMipTexels(textureDesc, 0); |
| 267 | const auto initialDataSize = static_cast<VkDeviceSize>(GetMemoryFootprint(textureDesc.format, imageSize)); |
| 268 | |
| 269 | /* Set up initial image data */ |
| 270 | const void* initialData = nullptr; |
| 271 | ByteBuffer intermediateData; |
| 272 | |
| 273 | if (imageDesc) |
| 274 | { |
| 275 | /* Check if image data must be converted */ |
| 276 | const auto& formatAttribs = GetFormatAttribs(textureDesc.format); |
| 277 | if (formatAttribs.bitSize > 0 && (formatAttribs.flags & FormatFlags::IsCompressed) == 0) |
| 278 | { |
| 279 | /* Convert image format (will be null if no conversion is necessary) */ |
| 280 | intermediateData = ConvertImageBuffer(*imageDesc, formatAttribs.format, formatAttribs.dataType, cfg.threadCount); |
| 281 | } |
| 282 | |
| 283 | if (intermediateData) |
| 284 | { |
| 285 | /* |
| 286 | Validate that source image data was large enough so conversion is valid, |
| 287 | then use temporary image buffer as source for initial data |
| 288 | */ |
| 289 | const auto srcImageDataSize = imageSize * ImageFormatSize(imageDesc->format) * DataTypeSize(imageDesc->dataType); |
| 290 | AssertImageDataSize(imageDesc->dataSize, static_cast<std::size_t>(srcImageDataSize)); |
| 291 | initialData = intermediateData.get(); |
| 292 | } |
| 293 | else |
| 294 | { |
| 295 | /* |
| 296 | Validate that image data is large enough, |
| 297 | then use input data as source for initial data |
| 298 | */ |
| 299 | AssertImageDataSize(imageDesc->dataSize, static_cast<std::size_t>(initialDataSize)); |
| 300 | initialData = imageDesc->data; |
| 301 | } |
| 302 | } |
| 303 | else if ((textureDesc.miscFlags & MiscFlags::NoInitialData) == 0) |
| 304 | { |
| 305 | /* Allocate default image data */ |
| 306 | const auto& formatAttribs = GetFormatAttribs(textureDesc.format); |
| 307 | if (formatAttribs.bitSize > 0 && (formatAttribs.flags & FormatFlags::IsCompressed) == 0) |
| 308 | { |
| 309 | const ColorRGBAd fillColor{ textureDesc.clearValue.color.Cast<double>() }; |
| 310 | intermediateData = GenerateImageBuffer(formatAttribs.format, formatAttribs.dataType, imageSize, fillColor); |
| 311 | } |
| 312 | else |
| 313 | intermediateData = GenerateEmptyByteBuffer(static_cast<std::size_t>(initialDataSize)); |
| 314 | |
| 315 | initialData = intermediateData.get(); |
| 316 | } |
| 317 | |
| 318 | /* Create staging buffer */ |