| 1 | // Copyright (C) 2022 The Qt Company Ltd. |
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
| 3 | |
| 4 | #include "qssgrenderbasetypes_p.h" |
| 5 | |
| 6 | QT_BEGIN_NAMESPACE |
| 7 | |
| 8 | const char *QSSGRenderTextureFormat::toString() const |
| 9 | { |
| 10 | switch (format) { |
| 11 | case QSSGRenderTextureFormat::R8: |
| 12 | return "R8" ; |
| 13 | case QSSGRenderTextureFormat::R16: |
| 14 | return "R16" ; |
| 15 | case QSSGRenderTextureFormat::R16F: |
| 16 | return "R16F" ; |
| 17 | case QSSGRenderTextureFormat::R32I: |
| 18 | return "R32I" ; |
| 19 | case QSSGRenderTextureFormat::R32UI: |
| 20 | return "R32UI" ; |
| 21 | case QSSGRenderTextureFormat::R32F: |
| 22 | return "R32F" ; |
| 23 | case QSSGRenderTextureFormat::RG8: |
| 24 | return "RG8" ; |
| 25 | case QSSGRenderTextureFormat::RGBA8: |
| 26 | return "RGBA8" ; |
| 27 | case QSSGRenderTextureFormat::RGB8: |
| 28 | return "RGB8" ; |
| 29 | case QSSGRenderTextureFormat::SRGB8: |
| 30 | return "SRGB8" ; |
| 31 | case QSSGRenderTextureFormat::SRGB8A8: |
| 32 | return "SRGB8A8" ; |
| 33 | case QSSGRenderTextureFormat::RGB565: |
| 34 | return "RGB565" ; |
| 35 | case QSSGRenderTextureFormat::RGBA5551: |
| 36 | return "RGBA5551" ; |
| 37 | case QSSGRenderTextureFormat::Alpha8: |
| 38 | return "Alpha8" ; |
| 39 | case QSSGRenderTextureFormat::Luminance8: |
| 40 | return "Luminance8" ; |
| 41 | case QSSGRenderTextureFormat::Luminance16: |
| 42 | return "Luminance16" ; |
| 43 | case QSSGRenderTextureFormat::LuminanceAlpha8: |
| 44 | return "LuminanceAlpha8" ; |
| 45 | case QSSGRenderTextureFormat::RGBA16F: |
| 46 | return "RGBA16F" ; |
| 47 | case QSSGRenderTextureFormat::RG16F: |
| 48 | return "RG16F" ; |
| 49 | case QSSGRenderTextureFormat::RG32F: |
| 50 | return "RG32F" ; |
| 51 | case QSSGRenderTextureFormat::RGB32F: |
| 52 | return "RGB32F" ; |
| 53 | case QSSGRenderTextureFormat::RGBA32F: |
| 54 | return "RGBA32F" ; |
| 55 | case QSSGRenderTextureFormat::R11G11B10: |
| 56 | return "R11G11B10" ; |
| 57 | case QSSGRenderTextureFormat::RGB9E5: |
| 58 | return "RGB9E5" ; |
| 59 | case QSSGRenderTextureFormat::RGBE8: |
| 60 | return "RGBE8" ; |
| 61 | case QSSGRenderTextureFormat::RGBA_DXT1: |
| 62 | return "RGBA_DXT1" ; |
| 63 | case QSSGRenderTextureFormat::RGB_DXT1: |
| 64 | return "RGB_DXT1" ; |
| 65 | case QSSGRenderTextureFormat::RGBA_DXT3: |
| 66 | return "RGBA_DXT3" ; |
| 67 | case QSSGRenderTextureFormat::RGBA_DXT5: |
| 68 | return "RGBA_DXT5" ; |
| 69 | case QSSGRenderTextureFormat::R11_EAC_UNorm: |
| 70 | return "R11_EAC_UNorm" ; |
| 71 | case QSSGRenderTextureFormat::R11_EAC_SNorm: |
| 72 | return "R11_EAC_SNorm" ; |
| 73 | case QSSGRenderTextureFormat::RG11_EAC_UNorm: |
| 74 | return "RG11_EAC_UNorm" ; |
| 75 | case QSSGRenderTextureFormat::RG11_EAC_SNorm: |
| 76 | return "RG11_EAC_SNorm" ; |
| 77 | case QSSGRenderTextureFormat::RGB8_ETC2: |
| 78 | return "RGB8_ETC2" ; |
| 79 | case QSSGRenderTextureFormat::SRGB8_ETC2: |
| 80 | return "SRGB8_ETC2" ; |
| 81 | case QSSGRenderTextureFormat::RGB8_PunchThrough_Alpha1_ETC2: |
| 82 | return "RGB8_PunchThrough_Alpha1_ETC2" ; |
| 83 | case QSSGRenderTextureFormat::SRGB8_PunchThrough_Alpha1_ETC2: |
| 84 | return "SRGB8_PunchThrough_Alpha1_ETC2" ; |
| 85 | case QSSGRenderTextureFormat::RGBA8_ETC2_EAC: |
| 86 | return "RGBA8_ETC2_EAC" ; |
| 87 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ETC2_EAC: |
| 88 | return "SRGB8_Alpha8_ETC2_EAC" ; |
| 89 | case QSSGRenderTextureFormat::RGBA_ASTC_4x4: |
| 90 | return "RGBA_ASTC_4x4" ; |
| 91 | case QSSGRenderTextureFormat::RGBA_ASTC_5x4: |
| 92 | return "RGBA_ASTC_5x4" ; |
| 93 | case QSSGRenderTextureFormat::RGBA_ASTC_5x5: |
| 94 | return "RGBA_ASTC_5x5" ; |
| 95 | case QSSGRenderTextureFormat::RGBA_ASTC_6x5: |
| 96 | return "RGBA_ASTC_6x5" ; |
| 97 | case QSSGRenderTextureFormat::RGBA_ASTC_6x6: |
| 98 | return "RGBA_ASTC_6x6" ; |
| 99 | case QSSGRenderTextureFormat::RGBA_ASTC_8x5: |
| 100 | return "RGBA_ASTC_8x5" ; |
| 101 | case QSSGRenderTextureFormat::RGBA_ASTC_8x6: |
| 102 | return "RGBA_ASTC_8x6" ; |
| 103 | case QSSGRenderTextureFormat::RGBA_ASTC_8x8: |
| 104 | return "RGBA_ASTC_8x8" ; |
| 105 | case QSSGRenderTextureFormat::RGBA_ASTC_10x5: |
| 106 | return "RGBA_ASTC_10x5" ; |
| 107 | case QSSGRenderTextureFormat::RGBA_ASTC_10x6: |
| 108 | return "RGBA_ASTC_10x6" ; |
| 109 | case QSSGRenderTextureFormat::RGBA_ASTC_10x8: |
| 110 | return "RGBA_ASTC_10x8" ; |
| 111 | case QSSGRenderTextureFormat::RGBA_ASTC_10x10: |
| 112 | return "RGBA_ASTC_10x10" ; |
| 113 | case QSSGRenderTextureFormat::RGBA_ASTC_12x10: |
| 114 | return "RGBA_ASTC_12x10" ; |
| 115 | case QSSGRenderTextureFormat::RGBA_ASTC_12x12: |
| 116 | return "RGBA_ASTC_12x12" ; |
| 117 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ASTC_4x4: |
| 118 | return "SRGB8_Alpha8_ASTC_4x4" ; |
| 119 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ASTC_5x4: |
| 120 | return "SRGB8_Alpha8_ASTC_5x4" ; |
| 121 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ASTC_5x5: |
| 122 | return "SRGB8_Alpha8_ASTC_5x5" ; |
| 123 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ASTC_6x5: |
| 124 | return "SRGB8_Alpha8_ASTC_6x5" ; |
| 125 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ASTC_6x6: |
| 126 | return "SRGB8_Alpha8_ASTC_6x6" ; |
| 127 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ASTC_8x5: |
| 128 | return "SRGB8_Alpha8_ASTC_8x5" ; |
| 129 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ASTC_8x6: |
| 130 | return "SRGB8_Alpha8_ASTC_8x6" ; |
| 131 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ASTC_8x8: |
| 132 | return "SRGB8_Alpha8_ASTC_8x8" ; |
| 133 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ASTC_10x5: |
| 134 | return "SRGB8_Alpha8_ASTC_10x5" ; |
| 135 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ASTC_10x6: |
| 136 | return "SRGB8_Alpha8_ASTC_10x6" ; |
| 137 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ASTC_10x8: |
| 138 | return "SRGB8_Alpha8_ASTC_10x8" ; |
| 139 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ASTC_10x10: |
| 140 | return "SRGB8_Alpha8_ASTC_10x10" ; |
| 141 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ASTC_12x10: |
| 142 | return "SRGB8_Alpha8_ASTC_12x10" ; |
| 143 | case QSSGRenderTextureFormat::SRGB8_Alpha8_ASTC_12x12: |
| 144 | return "SRGB8_Alpha8_ASTC_12x12" ; |
| 145 | case QSSGRenderTextureFormat::BC1: |
| 146 | return "BC1" ; |
| 147 | case QSSGRenderTextureFormat::BC2: |
| 148 | return "BC2" ; |
| 149 | case QSSGRenderTextureFormat::BC3: |
| 150 | return "BC3" ; |
| 151 | case QSSGRenderTextureFormat::BC4: |
| 152 | return "BC4" ; |
| 153 | case QSSGRenderTextureFormat::BC5: |
| 154 | return "BC5" ; |
| 155 | case QSSGRenderTextureFormat::BC6H: |
| 156 | return "BC6H" ; |
| 157 | case QSSGRenderTextureFormat::BC7: |
| 158 | return "BC7" ; |
| 159 | case QSSGRenderTextureFormat::Depth16: |
| 160 | return "Depth16" ; |
| 161 | case QSSGRenderTextureFormat::Depth24: |
| 162 | return "Depth24" ; |
| 163 | case QSSGRenderTextureFormat::Depth32: |
| 164 | return "Depth32" ; |
| 165 | case QSSGRenderTextureFormat::Depth24Stencil8: |
| 166 | return "Depth24Stencil8" ; |
| 167 | case QSSGRenderTextureFormat::RGB10_A2: |
| 168 | return "RGB10_A2" ; |
| 169 | case QSSGRenderTextureFormat::RGB16F: |
| 170 | return "RGB16F" ; |
| 171 | case QSSGRenderTextureFormat::RGBA32UI: |
| 172 | return "RGBA32UI" ; |
| 173 | case QSSGRenderTextureFormat::RGB32UI: |
| 174 | return "RGB32UI" ; |
| 175 | case QSSGRenderTextureFormat::RGBA16UI: |
| 176 | return "RGBA16UI" ; |
| 177 | case QSSGRenderTextureFormat::RGB16UI: |
| 178 | return "RGB16UI" ; |
| 179 | case QSSGRenderTextureFormat::RGBA8UI: |
| 180 | return "RGBA8UI" ; |
| 181 | case QSSGRenderTextureFormat::RGB8UI: |
| 182 | return "RGB8UI" ; |
| 183 | case QSSGRenderTextureFormat::RGBA32I: |
| 184 | return "RGBA32I" ; |
| 185 | case QSSGRenderTextureFormat::RGB32I: |
| 186 | return "RGB32I" ; |
| 187 | case QSSGRenderTextureFormat::RGBA16I: |
| 188 | return "RGBA16I" ; |
| 189 | case QSSGRenderTextureFormat::RGB16I: |
| 190 | return "RGB16I" ; |
| 191 | case QSSGRenderTextureFormat::RGBA8I: |
| 192 | return "RGBA8I" ; |
| 193 | case QSSGRenderTextureFormat::RGB8I: |
| 194 | return "RGB8I" ; |
| 195 | case QSSGRenderTextureFormat::Unknown: |
| 196 | return "Unknown" ; |
| 197 | } |
| 198 | |
| 199 | Q_UNREACHABLE_RETURN(nullptr); |
| 200 | } |
| 201 | |
| 202 | qint32 QSSGRenderTextureFormat::getSizeofFormat() const noexcept |
| 203 | { |
| 204 | switch (format) { |
| 205 | case R8: |
| 206 | return 1; |
| 207 | case R16F: |
| 208 | return 2; |
| 209 | case R16: |
| 210 | return 2; |
| 211 | case R32I: |
| 212 | return 4; |
| 213 | case R32F: |
| 214 | return 4; |
| 215 | case RGBE8: |
| 216 | case RGBA8: |
| 217 | return 4; |
| 218 | case RGB8: |
| 219 | return 3; |
| 220 | case RGB565: |
| 221 | return 2; |
| 222 | case RGBA5551: |
| 223 | return 2; |
| 224 | case Alpha8: |
| 225 | return 1; |
| 226 | case Luminance8: |
| 227 | return 1; |
| 228 | case LuminanceAlpha8: |
| 229 | return 1; |
| 230 | case Depth16: |
| 231 | return 2; |
| 232 | case Depth24: |
| 233 | return 3; |
| 234 | case Depth32: |
| 235 | return 4; |
| 236 | case Depth24Stencil8: |
| 237 | return 4; |
| 238 | case RGB9E5: |
| 239 | return 4; |
| 240 | case SRGB8: |
| 241 | return 3; |
| 242 | case SRGB8A8: |
| 243 | return 4; |
| 244 | case RGBA16F: |
| 245 | return 8; |
| 246 | case RG16F: |
| 247 | return 4; |
| 248 | case RG32F: |
| 249 | return 8; |
| 250 | case RGBA32F: |
| 251 | return 16; |
| 252 | case RGB32F: |
| 253 | return 12; |
| 254 | case R11G11B10: |
| 255 | return 4; |
| 256 | default: |
| 257 | break; |
| 258 | } |
| 259 | Q_ASSERT(false); |
| 260 | return 0; |
| 261 | } |
| 262 | |
| 263 | qint32 QSSGRenderTextureFormat::getNumberOfComponent() const noexcept |
| 264 | { |
| 265 | switch (format) { |
| 266 | case R8: |
| 267 | return 1; |
| 268 | case R16F: |
| 269 | return 1; |
| 270 | case R16: |
| 271 | return 1; |
| 272 | case R32I: |
| 273 | return 1; |
| 274 | case R32F: |
| 275 | return 1; |
| 276 | case RGBA8: |
| 277 | return 4; |
| 278 | case RGB8: |
| 279 | return 3; |
| 280 | case RGB565: |
| 281 | return 3; |
| 282 | case RGBA5551: |
| 283 | return 4; |
| 284 | case Alpha8: |
| 285 | return 1; |
| 286 | case Luminance8: |
| 287 | return 1; |
| 288 | case LuminanceAlpha8: |
| 289 | return 2; |
| 290 | case Depth16: |
| 291 | return 1; |
| 292 | case Depth24: |
| 293 | return 1; |
| 294 | case Depth32: |
| 295 | return 1; |
| 296 | case Depth24Stencil8: |
| 297 | return 2; |
| 298 | case RGB9E5: |
| 299 | return 3; |
| 300 | case SRGB8: |
| 301 | return 3; |
| 302 | case SRGB8A8: |
| 303 | return 4; |
| 304 | case RGBA16F: |
| 305 | return 4; |
| 306 | case RG16F: |
| 307 | return 2; |
| 308 | case RG32F: |
| 309 | return 2; |
| 310 | case RGBA32F: |
| 311 | return 4; |
| 312 | case RGB32F: |
| 313 | return 3; |
| 314 | case R11G11B10: |
| 315 | return 3; |
| 316 | case RGBE8: |
| 317 | return 4; |
| 318 | default: |
| 319 | break; |
| 320 | } |
| 321 | Q_ASSERT(false); |
| 322 | return 0; |
| 323 | } |
| 324 | |
| 325 | void QSSGRenderTextureFormat::decodeToFloat(void *inPtr, qint32 byteOfs, float *outPtr) const |
| 326 | { |
| 327 | Q_ASSERT(byteOfs >= 0); |
| 328 | outPtr[0] = 0.0f; |
| 329 | outPtr[1] = 0.0f; |
| 330 | outPtr[2] = 0.0f; |
| 331 | outPtr[3] = 0.0f; |
| 332 | quint8 *src = reinterpret_cast<quint8 *>(inPtr); |
| 333 | switch (format) { |
| 334 | case Alpha8: |
| 335 | outPtr[0] = (float(src[byteOfs])) / 255.0f; |
| 336 | break; |
| 337 | |
| 338 | case Luminance8: |
| 339 | case LuminanceAlpha8: |
| 340 | case R8: |
| 341 | case RG8: |
| 342 | case RGB8: |
| 343 | case RGBA8: |
| 344 | case SRGB8: |
| 345 | case SRGB8A8: |
| 346 | for (qint32 i = 0; i < getSizeofFormat(); ++i) { |
| 347 | float val = (float(src[byteOfs + i])) / 255.0f; |
| 348 | outPtr[i] = (i < 3) ? std::pow(x: val, y: 0.4545454545f) : val; |
| 349 | } |
| 350 | break; |
| 351 | case RGBE8: |
| 352 | { |
| 353 | float pwd = powf(x: 2.0f, y: int(src[byteOfs + 3]) - 128); |
| 354 | outPtr[0] = float(src[byteOfs + 0]) * pwd / 255.0; |
| 355 | outPtr[1] = float(src[byteOfs + 1]) * pwd / 255.0; |
| 356 | outPtr[2] = float(src[byteOfs + 2]) * pwd / 255.0; |
| 357 | outPtr[3] = 1.0f; |
| 358 | } break; |
| 359 | |
| 360 | case R32F: |
| 361 | outPtr[0] = reinterpret_cast<float *>(src + byteOfs)[0]; |
| 362 | break; |
| 363 | case RG32F: |
| 364 | outPtr[0] = reinterpret_cast<float *>(src + byteOfs)[0]; |
| 365 | outPtr[1] = reinterpret_cast<float *>(src + byteOfs)[1]; |
| 366 | break; |
| 367 | case RGBA32F: |
| 368 | outPtr[0] = reinterpret_cast<float *>(src + byteOfs)[0]; |
| 369 | outPtr[1] = reinterpret_cast<float *>(src + byteOfs)[1]; |
| 370 | outPtr[2] = reinterpret_cast<float *>(src + byteOfs)[2]; |
| 371 | outPtr[3] = reinterpret_cast<float *>(src + byteOfs)[3]; |
| 372 | break; |
| 373 | case RGB32F: |
| 374 | outPtr[0] = reinterpret_cast<float *>(src + byteOfs)[0]; |
| 375 | outPtr[1] = reinterpret_cast<float *>(src + byteOfs)[1]; |
| 376 | outPtr[2] = reinterpret_cast<float *>(src + byteOfs)[2]; |
| 377 | break; |
| 378 | |
| 379 | case R16F: |
| 380 | case RG16F: |
| 381 | case RGBA16F: |
| 382 | for (qint32 i = 0; i < (getSizeofFormat() >> 1); ++i) { |
| 383 | // NOTE : This only works on the assumption that we don't have any denormals, |
| 384 | // Infs or NaNs. |
| 385 | // Every pixel in our source image should be "regular" |
| 386 | quint16 h = reinterpret_cast<quint16 *>(src + byteOfs)[i]; |
| 387 | quint32 sign = (h & 0x8000u) << 16u; |
| 388 | quint32 exponent = (((((h & 0x7c00u) >> 10) - 15) + 127) << 23); |
| 389 | quint32 mantissa = ((h & 0x3ffu) << 13); |
| 390 | quint32 result = sign | exponent | mantissa; |
| 391 | |
| 392 | if (h == 0 || h == 0x8000) |
| 393 | result = 0; |
| 394 | memcpy(dest: outPtr + i, src: &result, n: 4); |
| 395 | } |
| 396 | break; |
| 397 | |
| 398 | case R11G11B10: |
| 399 | // place holder |
| 400 | Q_ASSERT(false); |
| 401 | break; |
| 402 | |
| 403 | default: |
| 404 | outPtr[0] = 0.0f; |
| 405 | outPtr[1] = 0.0f; |
| 406 | outPtr[2] = 0.0f; |
| 407 | outPtr[3] = 0.0f; |
| 408 | break; |
| 409 | } |
| 410 | } |
| 411 | void QSSGRenderTextureFormat::encodeToPixel(float *inPtr, void *outPtr, qint32 byteOfs) const |
| 412 | { |
| 413 | struct M8E8 |
| 414 | { |
| 415 | quint8 m; |
| 416 | quint8 e; |
| 417 | M8E8() : m(0), e(0){ |
| 418 | } |
| 419 | M8E8(const float val) { |
| 420 | float l2 = 1.f + std::floor(x: log2f(x: val)); |
| 421 | float mm = val / powf(x: 2.f, y: l2); |
| 422 | m = quint8(mm * 255.f); |
| 423 | e = quint8(l2 + 128); |
| 424 | } |
| 425 | M8E8(const float val, quint8 exp) { |
| 426 | if (val <= 0) { |
| 427 | m = e = 0; |
| 428 | return; |
| 429 | } |
| 430 | float mm = val / powf(x: 2.f, y: exp - 128); |
| 431 | m = quint8(mm * 255.f); |
| 432 | e = exp; |
| 433 | } |
| 434 | }; |
| 435 | |
| 436 | Q_ASSERT(byteOfs >= 0); |
| 437 | quint8 *dest = reinterpret_cast<quint8 *>(outPtr); |
| 438 | switch (format) { |
| 439 | case QSSGRenderTextureFormat::Alpha8: |
| 440 | dest[byteOfs] = quint8(inPtr[0] * 255.0f); |
| 441 | break; |
| 442 | |
| 443 | case Luminance8: |
| 444 | case LuminanceAlpha8: |
| 445 | case R8: |
| 446 | case RG8: |
| 447 | case RGB8: |
| 448 | case RGBA8: |
| 449 | case SRGB8: |
| 450 | case SRGB8A8: |
| 451 | for (qint32 i = 0; i < getSizeofFormat(); ++i) { |
| 452 | inPtr[i] = (inPtr[i] > 1.0f) ? 1.0f : inPtr[i]; |
| 453 | if (i < 3) |
| 454 | dest[byteOfs + i] = quint8(powf(x: inPtr[i], y: 2.2f) * 255.0f); |
| 455 | else |
| 456 | dest[byteOfs + i] = quint8(inPtr[i] * 255.0f); |
| 457 | } |
| 458 | break; |
| 459 | case RGBE8: |
| 460 | { |
| 461 | float max = qMax(a: inPtr[0], b: qMax(a: inPtr[1], b: inPtr[2])); |
| 462 | M8E8 ex(max); |
| 463 | M8E8 a(inPtr[0], ex.e); |
| 464 | M8E8 b(inPtr[1], ex.e); |
| 465 | M8E8 c(inPtr[2], ex.e); |
| 466 | quint8 *dst = reinterpret_cast<quint8 *>(outPtr) + byteOfs; |
| 467 | dst[0] = a.m; |
| 468 | dst[1] = b.m; |
| 469 | dst[2] = c.m; |
| 470 | dst[3] = ex.e; |
| 471 | } break; |
| 472 | |
| 473 | case R32F: |
| 474 | reinterpret_cast<float *>(dest + byteOfs)[0] = inPtr[0]; |
| 475 | break; |
| 476 | case RG32F: |
| 477 | reinterpret_cast<float *>(dest + byteOfs)[0] = inPtr[0]; |
| 478 | reinterpret_cast<float *>(dest + byteOfs)[1] = inPtr[1]; |
| 479 | break; |
| 480 | case RGBA32F: |
| 481 | reinterpret_cast<float *>(dest + byteOfs)[0] = inPtr[0]; |
| 482 | reinterpret_cast<float *>(dest + byteOfs)[1] = inPtr[1]; |
| 483 | reinterpret_cast<float *>(dest + byteOfs)[2] = inPtr[2]; |
| 484 | reinterpret_cast<float *>(dest + byteOfs)[3] = inPtr[3]; |
| 485 | break; |
| 486 | case RGB32F: |
| 487 | reinterpret_cast<float *>(dest + byteOfs)[0] = inPtr[0]; |
| 488 | reinterpret_cast<float *>(dest + byteOfs)[1] = inPtr[1]; |
| 489 | reinterpret_cast<float *>(dest + byteOfs)[2] = inPtr[2]; |
| 490 | break; |
| 491 | |
| 492 | case R16F: |
| 493 | case RG16F: |
| 494 | case RGBA16F: |
| 495 | for (qint32 i = 0; i < (getSizeofFormat() >> 1); ++i) { |
| 496 | // NOTE : This also has the limitation of not handling infs, NaNs and |
| 497 | // denormals, but it should be |
| 498 | // sufficient for our purposes. |
| 499 | if (inPtr[i] > 65519.0f) |
| 500 | inPtr[i] = 65519.0f; |
| 501 | if (std::fabs(x: inPtr[i]) < 6.10352E-5f) |
| 502 | inPtr[i] = 0.0f; |
| 503 | quint32 f = reinterpret_cast<quint32 *>(inPtr)[i]; |
| 504 | quint32 sign = (f & 0x80000000) >> 16; |
| 505 | qint32 exponent = (f & 0x7f800000) >> 23; |
| 506 | quint32 mantissa = (f >> 13) & 0x3ff; |
| 507 | exponent = exponent - 112; |
| 508 | if (exponent > 31) |
| 509 | exponent = 31; |
| 510 | if (exponent < 0) |
| 511 | exponent = 0; |
| 512 | exponent = exponent << 10; |
| 513 | reinterpret_cast<quint16 *>(dest + byteOfs)[i] = quint16(sign | quint32(exponent) | mantissa); |
| 514 | } |
| 515 | break; |
| 516 | |
| 517 | case R11G11B10: |
| 518 | // place holder |
| 519 | Q_ASSERT(false); |
| 520 | break; |
| 521 | |
| 522 | default: |
| 523 | dest[byteOfs] = 0; |
| 524 | dest[byteOfs + 1] = 0; |
| 525 | dest[byteOfs + 2] = 0; |
| 526 | dest[byteOfs + 3] = 0; |
| 527 | break; |
| 528 | } |
| 529 | } |
| 530 | |
| 531 | const char *QSSGBaseTypeHelpers::toString(QSSGRenderWinding value) |
| 532 | { |
| 533 | switch (value) { |
| 534 | case QSSGRenderWinding::Clockwise: |
| 535 | return "Clockwise" ; |
| 536 | case QSSGRenderWinding::CounterClockwise: |
| 537 | return "CounterClockwise" ; |
| 538 | } |
| 539 | |
| 540 | Q_UNREACHABLE_RETURN(nullptr); |
| 541 | } |
| 542 | |
| 543 | const char *QSSGBaseTypeHelpers::toString(QSSGCullFaceMode value) |
| 544 | { |
| 545 | switch (value) { |
| 546 | case QSSGCullFaceMode::Front: |
| 547 | return "Front" ; |
| 548 | case QSSGCullFaceMode::Back: |
| 549 | return "Back" ; |
| 550 | case QSSGCullFaceMode::FrontAndBack: |
| 551 | return "FrontAndBack" ; |
| 552 | case QSSGCullFaceMode::Unknown: |
| 553 | return "Unknown" ; |
| 554 | case QSSGCullFaceMode::Disabled: |
| 555 | return "Disabled" ; |
| 556 | } |
| 557 | |
| 558 | Q_UNREACHABLE_RETURN(nullptr); |
| 559 | } |
| 560 | |
| 561 | const char *QSSGBaseTypeHelpers::toString(QSSGRenderTextureCubeFace value) |
| 562 | { |
| 563 | switch (value) { |
| 564 | case QSSGRenderTextureCubeFace::NegX: |
| 565 | return "NegX" ; |
| 566 | case QSSGRenderTextureCubeFace::NegZ: |
| 567 | return "NegZ" ; |
| 568 | case QSSGRenderTextureCubeFace::NegY: |
| 569 | return "NegY" ; |
| 570 | case QSSGRenderTextureCubeFace::PosY: |
| 571 | return "PosY" ; |
| 572 | case QSSGRenderTextureCubeFace::PosX: |
| 573 | return "PosX" ; |
| 574 | case QSSGRenderTextureCubeFace::PosZ: |
| 575 | return "PosZ" ; |
| 576 | } |
| 577 | |
| 578 | Q_UNREACHABLE_RETURN(nullptr); |
| 579 | } |
| 580 | |
| 581 | const char *QSSGBaseTypeHelpers::toString(QSSGRenderTextureTypeValue value) |
| 582 | { |
| 583 | switch (value) { |
| 584 | case QSSGRenderTextureTypeValue::Unknown: |
| 585 | return "Unknown" ; |
| 586 | case QSSGRenderTextureTypeValue::Diffuse: |
| 587 | return "Diffuse" ; |
| 588 | case QSSGRenderTextureTypeValue::Specular: |
| 589 | return "Specular" ; |
| 590 | case QSSGRenderTextureTypeValue::Environment: |
| 591 | return "Environment" ; |
| 592 | case QSSGRenderTextureTypeValue::Bump: |
| 593 | return "Bump" ; |
| 594 | case QSSGRenderTextureTypeValue::Normal: |
| 595 | return "Normal" ; |
| 596 | case QSSGRenderTextureTypeValue::Emissive: |
| 597 | return "Emissive" ; |
| 598 | case QSSGRenderTextureTypeValue::Anisotropy: |
| 599 | return "Anisotropy" ; |
| 600 | case QSSGRenderTextureTypeValue::Translucent: |
| 601 | return "Translucent" ; |
| 602 | } |
| 603 | |
| 604 | Q_UNREACHABLE_RETURN(nullptr); |
| 605 | } |
| 606 | |
| 607 | const char *QSSGBaseTypeHelpers::toString(QSSGDepthDrawMode value) |
| 608 | { |
| 609 | switch (value) { |
| 610 | case QSSGDepthDrawMode::OpaqueOnly: |
| 611 | return "OpaqueOnly" ; |
| 612 | case QSSGDepthDrawMode::Always: |
| 613 | return "Always" ; |
| 614 | case QSSGDepthDrawMode::Never: |
| 615 | return "Never" ; |
| 616 | case QSSGDepthDrawMode::OpaquePrePass: |
| 617 | return "OpaquePrePass" ; |
| 618 | } |
| 619 | |
| 620 | Q_UNREACHABLE_RETURN(nullptr); |
| 621 | } |
| 622 | |
| 623 | const char *QSSGBaseTypeHelpers::toString(QSSGRenderComponentType value) |
| 624 | { |
| 625 | switch (value) { |
| 626 | case QSSGRenderComponentType::UnsignedInt8: |
| 627 | return "UnsignedInt8" ; |
| 628 | case QSSGRenderComponentType::Int8: |
| 629 | return "Int8" ; |
| 630 | case QSSGRenderComponentType::UnsignedInt16: |
| 631 | return "UnsignedInt16" ; |
| 632 | case QSSGRenderComponentType::Int16: |
| 633 | return "Int16" ; |
| 634 | case QSSGRenderComponentType::UnsignedInt32: |
| 635 | return "UnsignedInt32" ; |
| 636 | case QSSGRenderComponentType::Int32: |
| 637 | return "Int32" ; |
| 638 | case QSSGRenderComponentType::UnsignedInt64: |
| 639 | return "UnsignedInt64" ; |
| 640 | case QSSGRenderComponentType::Int64: |
| 641 | return "Int64" ; |
| 642 | case QSSGRenderComponentType::Float16: |
| 643 | return "Float16" ; |
| 644 | case QSSGRenderComponentType::Float32: |
| 645 | return "Float32" ; |
| 646 | case QSSGRenderComponentType::Float64: |
| 647 | return "Float64" ; |
| 648 | } |
| 649 | |
| 650 | Q_UNREACHABLE_RETURN("Unknown" ); |
| 651 | } |
| 652 | |
| 653 | const char *QSSGBaseTypeHelpers::toString(QSSGRenderTextureFormat::Format value) |
| 654 | { |
| 655 | return QSSGRenderTextureFormat(value).toString(); |
| 656 | } |
| 657 | |
| 658 | const char *QSSGBaseTypeHelpers::toString(QSSGRenderTextureCoordOp value) |
| 659 | { |
| 660 | switch (value) { |
| 661 | case QSSGRenderTextureCoordOp::ClampToEdge: |
| 662 | return "ClampToEdge" ; |
| 663 | case QSSGRenderTextureCoordOp::MirroredRepeat: |
| 664 | return "MirroredRepeat" ; |
| 665 | case QSSGRenderTextureCoordOp::Repeat: |
| 666 | return "Repeat" ; |
| 667 | case QSSGRenderTextureCoordOp::Unknown: |
| 668 | return "Unknown" ; |
| 669 | } |
| 670 | |
| 671 | Q_UNREACHABLE_RETURN(nullptr); |
| 672 | } |
| 673 | |
| 674 | const char *QSSGBaseTypeHelpers::toString(QSSGRenderTextureFilterOp value) |
| 675 | { |
| 676 | switch (value) { |
| 677 | case QSSGRenderTextureFilterOp::Nearest: |
| 678 | return "Nearest" ; |
| 679 | case QSSGRenderTextureFilterOp::Linear: |
| 680 | return "Linear" ; |
| 681 | case QSSGRenderTextureFilterOp::None: |
| 682 | return "None" ; |
| 683 | } |
| 684 | |
| 685 | Q_UNREACHABLE_RETURN(nullptr); |
| 686 | } |
| 687 | |
| 688 | const char *QSSGBaseTypeHelpers::displayName(QSSGRenderTextureCubeFace face) |
| 689 | { |
| 690 | switch (face) { |
| 691 | case QSSGRenderTextureCubeFace::NegX: |
| 692 | return "-X" ; |
| 693 | case QSSGRenderTextureCubeFace::NegZ: |
| 694 | return "-Z" ; |
| 695 | case QSSGRenderTextureCubeFace::NegY: |
| 696 | return "-Y" ; |
| 697 | case QSSGRenderTextureCubeFace::PosY: |
| 698 | return "+Y" ; |
| 699 | case QSSGRenderTextureCubeFace::PosX: |
| 700 | return "+X" ; |
| 701 | case QSSGRenderTextureCubeFace::PosZ: |
| 702 | return "+Z" ; |
| 703 | } |
| 704 | |
| 705 | Q_UNREACHABLE_RETURN(nullptr); |
| 706 | } |
| 707 | |
| 708 | size_t QSSGBaseTypeHelpers::getSizeOfType(QSSGRenderComponentType type) |
| 709 | { |
| 710 | switch (type) { |
| 711 | case QSSGRenderComponentType::UnsignedInt8: |
| 712 | return sizeof(quint8); |
| 713 | case QSSGRenderComponentType::Int8: |
| 714 | return sizeof(qint8); |
| 715 | case QSSGRenderComponentType::UnsignedInt16: |
| 716 | return sizeof(quint16); |
| 717 | case QSSGRenderComponentType::Int16: |
| 718 | return sizeof(qint16); |
| 719 | case QSSGRenderComponentType::UnsignedInt32: |
| 720 | return sizeof(quint32); |
| 721 | case QSSGRenderComponentType::Int32: |
| 722 | return sizeof(qint32); |
| 723 | case QSSGRenderComponentType::UnsignedInt64: |
| 724 | return sizeof(quint64); |
| 725 | case QSSGRenderComponentType::Int64: |
| 726 | return sizeof(qint64); |
| 727 | case QSSGRenderComponentType::Float16: |
| 728 | return sizeof(qfloat16); |
| 729 | case QSSGRenderComponentType::Float32: |
| 730 | return sizeof(float); |
| 731 | case QSSGRenderComponentType::Float64: |
| 732 | return sizeof(double); |
| 733 | } |
| 734 | Q_UNREACHABLE_RETURN(0); |
| 735 | } |
| 736 | |
| 737 | QT_END_NAMESPACE |
| 738 | |