Nicolas Capens | 0bac285 | 2016-05-07 06:09:58 -0400 | [diff] [blame^] | 1 | // Copyright 2016 The SwiftShader Authors. All Rights Reserved. |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 2 | // |
Nicolas Capens | 0bac285 | 2016-05-07 06:09:58 -0400 | [diff] [blame^] | 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 6 | // |
Nicolas Capens | 0bac285 | 2016-05-07 06:09:58 -0400 | [diff] [blame^] | 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 8 | // |
Nicolas Capens | 0bac285 | 2016-05-07 06:09:58 -0400 | [diff] [blame^] | 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 14 | |
| 15 | #include "Sampler.hpp" |
| 16 | |
| 17 | #include "MetaMacro.hpp" |
| 18 | #include "Context.hpp" |
| 19 | #include "Surface.hpp" |
| 20 | #include "CPUID.hpp" |
| 21 | #include "PixelRoutine.hpp" |
| 22 | #include "Debug.hpp" |
| 23 | |
| 24 | #include <memory.h> |
| 25 | #include <string.h> |
| 26 | |
| 27 | namespace sw |
| 28 | { |
| 29 | FilterType Sampler::maximumTextureFilterQuality = FILTER_LINEAR; |
| 30 | MipmapType Sampler::maximumMipmapFilterQuality = MIPMAP_POINT; |
| 31 | |
| 32 | Sampler::State::State() |
| 33 | { |
| 34 | memset(this, 0, sizeof(State)); |
| 35 | } |
| 36 | |
| 37 | Sampler::Sampler() |
| 38 | { |
| 39 | // FIXME: Mipmap::init |
Nicolas Capens | 8e8a7e8 | 2015-09-01 14:39:57 -0400 | [diff] [blame] | 40 | static const unsigned int zero = 0x00FF00FF; |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 41 | |
| 42 | for(int level = 0; level < MIPMAP_LEVELS; level++) |
| 43 | { |
| 44 | Mipmap &mipmap = texture.mipmap[level]; |
| 45 | |
| 46 | memset(&mipmap, 0, sizeof(Mipmap)); |
| 47 | |
Nicolas Capens | 7bb6268 | 2016-02-08 11:30:56 -0500 | [diff] [blame] | 48 | for(int face = 0; face < 6; face++) |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 49 | { |
| 50 | mipmap.buffer[face] = &zero; |
| 51 | } |
| 52 | |
| 53 | mipmap.uFrac = 16; |
| 54 | mipmap.vFrac = 16; |
| 55 | mipmap.wFrac = 16; |
| 56 | } |
| 57 | |
| 58 | externalTextureFormat = FORMAT_NULL; |
| 59 | internalTextureFormat = FORMAT_NULL; |
| 60 | textureType = TEXTURE_NULL; |
| 61 | |
| 62 | textureFilter = FILTER_LINEAR; |
| 63 | addressingModeU = ADDRESSING_WRAP; |
| 64 | addressingModeV = ADDRESSING_WRAP; |
| 65 | addressingModeW = ADDRESSING_WRAP; |
| 66 | mipmapFilterState = MIPMAP_NONE; |
| 67 | sRGB = false; |
| 68 | gather = false; |
| 69 | |
Alexis Hetu | 43da568 | 2015-10-21 15:36:50 -0400 | [diff] [blame] | 70 | swizzleR = SWIZZLE_RED; |
| 71 | swizzleG = SWIZZLE_GREEN; |
| 72 | swizzleB = SWIZZLE_BLUE; |
| 73 | swizzleA = SWIZZLE_ALPHA; |
| 74 | |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 75 | texture.LOD = 0.0f; |
| 76 | exp2LOD = 1.0f; |
| 77 | } |
| 78 | |
| 79 | Sampler::~Sampler() |
| 80 | { |
| 81 | } |
| 82 | |
| 83 | Sampler::State Sampler::samplerState() const |
| 84 | { |
| 85 | State state; |
| 86 | |
| 87 | if(textureType != TEXTURE_NULL) |
| 88 | { |
| 89 | state.textureType = textureType; |
| 90 | state.textureFormat = internalTextureFormat; |
| 91 | state.textureFilter = getTextureFilter(); |
| 92 | state.addressingModeU = getAddressingModeU(); |
| 93 | state.addressingModeV = getAddressingModeV(); |
| 94 | state.addressingModeW = getAddressingModeW(); |
| 95 | state.mipmapFilter = mipmapFilter(); |
| 96 | state.hasNPOTTexture = hasNPOTTexture(); |
| 97 | state.sRGB = sRGB && Surface::isSRGBreadable(externalTextureFormat); |
Alexis Hetu | 1d01aa3 | 2015-09-29 11:50:05 -0400 | [diff] [blame] | 98 | state.swizzleR = swizzleR; |
| 99 | state.swizzleG = swizzleG; |
| 100 | state.swizzleB = swizzleB; |
| 101 | state.swizzleA = swizzleA; |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 102 | |
| 103 | #if PERF_PROFILE |
| 104 | state.compressedFormat = Surface::isCompressed(externalTextureFormat); |
| 105 | #endif |
| 106 | } |
| 107 | |
| 108 | return state; |
| 109 | } |
| 110 | |
| 111 | void Sampler::setTextureLevel(int face, int level, Surface *surface, TextureType type) |
| 112 | { |
| 113 | if(surface) |
| 114 | { |
| 115 | Mipmap &mipmap = texture.mipmap[level]; |
| 116 | |
| 117 | mipmap.buffer[face] = surface->lockInternal(0, 0, 0, LOCK_UNLOCKED, PRIVATE); |
| 118 | |
| 119 | if(face == 0) |
| 120 | { |
| 121 | externalTextureFormat = surface->getExternalFormat(); |
| 122 | internalTextureFormat = surface->getInternalFormat(); |
| 123 | |
Nicolas Capens | 3779ea9 | 2015-06-10 13:43:52 -0400 | [diff] [blame] | 124 | int width = surface->getWidth(); |
| 125 | int height = surface->getHeight(); |
| 126 | int depth = surface->getDepth(); |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 127 | int pitchP = surface->getInternalPitchP(); |
| 128 | int sliceP = surface->getInternalSliceP(); |
| 129 | |
| 130 | int logWidth = log2(width); |
| 131 | int logHeight = log2(height); |
| 132 | int logDepth = log2(depth); |
| 133 | |
| 134 | if(level == 0) |
| 135 | { |
| 136 | texture.widthHeightLOD[0] = width * exp2LOD; |
| 137 | texture.widthHeightLOD[1] = width * exp2LOD; |
| 138 | texture.widthHeightLOD[2] = height * exp2LOD; |
| 139 | texture.widthHeightLOD[3] = height * exp2LOD; |
| 140 | |
| 141 | texture.widthLOD[0] = width * exp2LOD; |
| 142 | texture.widthLOD[1] = width * exp2LOD; |
| 143 | texture.widthLOD[2] = width * exp2LOD; |
| 144 | texture.widthLOD[3] = width * exp2LOD; |
| 145 | |
| 146 | texture.heightLOD[0] = height * exp2LOD; |
| 147 | texture.heightLOD[1] = height * exp2LOD; |
| 148 | texture.heightLOD[2] = height * exp2LOD; |
| 149 | texture.heightLOD[3] = height * exp2LOD; |
| 150 | |
| 151 | texture.depthLOD[0] = depth * exp2LOD; |
| 152 | texture.depthLOD[1] = depth * exp2LOD; |
| 153 | texture.depthLOD[2] = depth * exp2LOD; |
| 154 | texture.depthLOD[3] = depth * exp2LOD; |
| 155 | } |
| 156 | |
| 157 | if(!Surface::isFloatFormat(internalTextureFormat)) |
| 158 | { |
| 159 | mipmap.uInt = logWidth; |
| 160 | mipmap.vInt = logHeight; |
| 161 | mipmap.wInt = logDepth; |
| 162 | mipmap.uFrac = 16 - logWidth; |
| 163 | mipmap.vFrac = 16 - logHeight; |
| 164 | mipmap.wFrac = 16 - logDepth; |
| 165 | } |
| 166 | else |
| 167 | { |
| 168 | mipmap.fWidth[0] = (float)width / 65536.0f; |
| 169 | mipmap.fWidth[1] = (float)width / 65536.0f; |
| 170 | mipmap.fWidth[2] = (float)width / 65536.0f; |
| 171 | mipmap.fWidth[3] = (float)width / 65536.0f; |
| 172 | |
| 173 | mipmap.fHeight[0] = (float)height / 65536.0f; |
| 174 | mipmap.fHeight[1] = (float)height / 65536.0f; |
| 175 | mipmap.fHeight[2] = (float)height / 65536.0f; |
| 176 | mipmap.fHeight[3] = (float)height / 65536.0f; |
| 177 | |
| 178 | mipmap.fDepth[0] = (float)depth / 65536.0f; |
| 179 | mipmap.fDepth[1] = (float)depth / 65536.0f; |
| 180 | mipmap.fDepth[2] = (float)depth / 65536.0f; |
| 181 | mipmap.fDepth[3] = (float)depth / 65536.0f; |
| 182 | } |
| 183 | |
Nicolas Capens | adb305a | 2016-04-21 13:59:20 -0400 | [diff] [blame] | 184 | short halfTexelU = 0x8000 / width; |
| 185 | short halfTexelV = 0x8000 / height; |
| 186 | short halfTexelW = 0x8000 / depth; |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 187 | |
| 188 | mipmap.uHalf[0] = halfTexelU; |
| 189 | mipmap.uHalf[1] = halfTexelU; |
| 190 | mipmap.uHalf[2] = halfTexelU; |
| 191 | mipmap.uHalf[3] = halfTexelU; |
| 192 | |
| 193 | mipmap.vHalf[0] = halfTexelV; |
| 194 | mipmap.vHalf[1] = halfTexelV; |
| 195 | mipmap.vHalf[2] = halfTexelV; |
| 196 | mipmap.vHalf[3] = halfTexelV; |
| 197 | |
| 198 | mipmap.wHalf[0] = halfTexelW; |
| 199 | mipmap.wHalf[1] = halfTexelW; |
| 200 | mipmap.wHalf[2] = halfTexelW; |
| 201 | mipmap.wHalf[3] = halfTexelW; |
| 202 | |
| 203 | mipmap.width[0] = width; |
| 204 | mipmap.width[1] = width; |
| 205 | mipmap.width[2] = width; |
| 206 | mipmap.width[3] = width; |
| 207 | |
| 208 | mipmap.height[0] = height; |
| 209 | mipmap.height[1] = height; |
| 210 | mipmap.height[2] = height; |
| 211 | mipmap.height[3] = height; |
| 212 | |
| 213 | mipmap.depth[0] = depth; |
| 214 | mipmap.depth[1] = depth; |
| 215 | mipmap.depth[2] = depth; |
| 216 | mipmap.depth[3] = depth; |
| 217 | |
| 218 | mipmap.onePitchP[0] = 1; |
| 219 | mipmap.onePitchP[1] = pitchP; |
| 220 | mipmap.onePitchP[2] = 1; |
| 221 | mipmap.onePitchP[3] = pitchP; |
| 222 | |
| 223 | mipmap.sliceP[0] = sliceP; |
| 224 | mipmap.sliceP[1] = sliceP; |
Nicolas Capens | 8e8a7e8 | 2015-09-01 14:39:57 -0400 | [diff] [blame] | 225 | |
| 226 | if(internalTextureFormat == FORMAT_YV12_BT601 || |
| 227 | internalTextureFormat == FORMAT_YV12_BT709 || |
| 228 | internalTextureFormat == FORMAT_YV12_JFIF) |
| 229 | { |
Nicolas Capens | 6ee16a1 | 2015-11-19 22:58:29 -0500 | [diff] [blame] | 230 | unsigned int YStride = pitchP; |
Nicolas Capens | 8e8a7e8 | 2015-09-01 14:39:57 -0400 | [diff] [blame] | 231 | unsigned int YSize = YStride * height; |
| 232 | unsigned int CStride = align(YStride / 2, 16); |
Nicolas Capens | 0bac285 | 2016-05-07 06:09:58 -0400 | [diff] [blame^] | 233 | unsigned int CSize = CStride * height / 2; |
Nicolas Capens | 8e8a7e8 | 2015-09-01 14:39:57 -0400 | [diff] [blame] | 234 | |
| 235 | mipmap.buffer[1] = (byte*)mipmap.buffer[0] + YSize; |
| 236 | mipmap.buffer[2] = (byte*)mipmap.buffer[1] + CSize; |
| 237 | |
| 238 | texture.mipmap[1].uFrac = texture.mipmap[0].uFrac + 1; |
| 239 | texture.mipmap[1].vFrac = texture.mipmap[0].vFrac + 1; |
| 240 | texture.mipmap[1].width[0] = width / 2; |
| 241 | texture.mipmap[1].width[1] = width / 2; |
| 242 | texture.mipmap[1].width[2] = width / 2; |
| 243 | texture.mipmap[1].width[3] = width / 2; |
| 244 | texture.mipmap[1].height[0] = height / 2; |
| 245 | texture.mipmap[1].height[1] = height / 2; |
| 246 | texture.mipmap[1].height[2] = height / 2; |
| 247 | texture.mipmap[1].height[3] = height / 2; |
| 248 | texture.mipmap[1].onePitchP[0] = 1; |
| 249 | texture.mipmap[1].onePitchP[1] = CStride; |
| 250 | texture.mipmap[1].onePitchP[2] = 1; |
| 251 | texture.mipmap[1].onePitchP[3] = CStride; |
| 252 | } |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 253 | } |
| 254 | } |
| 255 | |
| 256 | textureType = type; |
| 257 | } |
| 258 | |
| 259 | void Sampler::setTextureFilter(FilterType textureFilter) |
| 260 | { |
| 261 | this->textureFilter = (FilterType)min(textureFilter, maximumTextureFilterQuality); |
| 262 | } |
| 263 | |
| 264 | void Sampler::setMipmapFilter(MipmapType mipmapFilter) |
| 265 | { |
| 266 | mipmapFilterState = (MipmapType)min(mipmapFilter, maximumMipmapFilterQuality); |
| 267 | } |
| 268 | |
| 269 | void Sampler::setGatherEnable(bool enable) |
| 270 | { |
| 271 | gather = enable; |
| 272 | } |
| 273 | |
| 274 | void Sampler::setAddressingModeU(AddressingMode addressingMode) |
| 275 | { |
| 276 | addressingModeU = addressingMode; |
| 277 | } |
| 278 | |
| 279 | void Sampler::setAddressingModeV(AddressingMode addressingMode) |
| 280 | { |
| 281 | addressingModeV = addressingMode; |
| 282 | } |
| 283 | |
| 284 | void Sampler::setAddressingModeW(AddressingMode addressingMode) |
| 285 | { |
| 286 | addressingModeW = addressingMode; |
| 287 | } |
| 288 | |
| 289 | void Sampler::setReadSRGB(bool sRGB) |
| 290 | { |
| 291 | this->sRGB = sRGB; |
| 292 | } |
| 293 | |
| 294 | void Sampler::setBorderColor(const Color<float> &borderColor) |
| 295 | { |
| 296 | // FIXME: Compact into generic function // FIXME: Clamp |
| 297 | short r = iround(0xFFFF * borderColor.r); |
| 298 | short g = iround(0xFFFF * borderColor.g); |
| 299 | short b = iround(0xFFFF * borderColor.b); |
| 300 | short a = iround(0xFFFF * borderColor.a); |
| 301 | |
| 302 | texture.borderColor4[0][0] = texture.borderColor4[0][1] = texture.borderColor4[0][2] = texture.borderColor4[0][3] = r; |
| 303 | texture.borderColor4[1][0] = texture.borderColor4[1][1] = texture.borderColor4[1][2] = texture.borderColor4[1][3] = g; |
| 304 | texture.borderColor4[2][0] = texture.borderColor4[2][1] = texture.borderColor4[2][2] = texture.borderColor4[2][3] = b; |
| 305 | texture.borderColor4[3][0] = texture.borderColor4[3][1] = texture.borderColor4[3][2] = texture.borderColor4[3][3] = a; |
| 306 | |
| 307 | texture.borderColorF[0][0] = texture.borderColorF[0][1] = texture.borderColorF[0][2] = texture.borderColorF[0][3] = borderColor.r; |
| 308 | texture.borderColorF[1][0] = texture.borderColorF[1][1] = texture.borderColorF[1][2] = texture.borderColorF[1][3] = borderColor.g; |
| 309 | texture.borderColorF[2][0] = texture.borderColorF[2][1] = texture.borderColorF[2][2] = texture.borderColorF[2][3] = borderColor.b; |
| 310 | texture.borderColorF[3][0] = texture.borderColorF[3][1] = texture.borderColorF[3][2] = texture.borderColorF[3][3] = borderColor.a; |
| 311 | } |
| 312 | |
Alexis Hetu | 617a5d5 | 2014-11-13 10:56:20 -0500 | [diff] [blame] | 313 | void Sampler::setMaxAnisotropy(float maxAnisotropy) |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 314 | { |
Alexis Hetu | 617a5d5 | 2014-11-13 10:56:20 -0500 | [diff] [blame] | 315 | texture.maxAnisotropy = maxAnisotropy; |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 316 | } |
| 317 | |
Alexis Hetu | 1d01aa3 | 2015-09-29 11:50:05 -0400 | [diff] [blame] | 318 | void Sampler::setSwizzleR(SwizzleType swizzleR) |
| 319 | { |
| 320 | this->swizzleR = swizzleR; |
| 321 | } |
Nicolas Capens | 7bb6268 | 2016-02-08 11:30:56 -0500 | [diff] [blame] | 322 | |
Alexis Hetu | 1d01aa3 | 2015-09-29 11:50:05 -0400 | [diff] [blame] | 323 | void Sampler::setSwizzleG(SwizzleType swizzleG) |
| 324 | { |
| 325 | this->swizzleG = swizzleG; |
| 326 | } |
| 327 | |
| 328 | void Sampler::setSwizzleB(SwizzleType swizzleB) |
| 329 | { |
| 330 | this->swizzleB = swizzleB; |
| 331 | } |
| 332 | |
| 333 | void Sampler::setSwizzleA(SwizzleType swizzleA) |
| 334 | { |
| 335 | this->swizzleA = swizzleA; |
| 336 | } |
| 337 | |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 338 | void Sampler::setFilterQuality(FilterType maximumFilterQuality) |
| 339 | { |
| 340 | Sampler::maximumTextureFilterQuality = maximumFilterQuality; |
| 341 | } |
| 342 | |
| 343 | void Sampler::setMipmapQuality(MipmapType maximumFilterQuality) |
| 344 | { |
| 345 | Sampler::maximumMipmapFilterQuality = maximumFilterQuality; |
| 346 | } |
| 347 | |
| 348 | void Sampler::setMipmapLOD(float LOD) |
| 349 | { |
| 350 | texture.LOD = LOD; |
| 351 | exp2LOD = exp2(LOD); |
| 352 | } |
| 353 | |
| 354 | bool Sampler::hasTexture() const |
| 355 | { |
| 356 | return textureType != TEXTURE_NULL; |
| 357 | } |
| 358 | |
| 359 | bool Sampler::hasUnsignedTexture() const |
| 360 | { |
| 361 | return Surface::isUnsignedComponent(internalTextureFormat, 0) && |
| 362 | Surface::isUnsignedComponent(internalTextureFormat, 1) && |
Nicolas Capens | 0bac285 | 2016-05-07 06:09:58 -0400 | [diff] [blame^] | 363 | Surface::isUnsignedComponent(internalTextureFormat, 2) && |
| 364 | Surface::isUnsignedComponent(internalTextureFormat, 3); |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 365 | } |
| 366 | |
| 367 | bool Sampler::hasCubeTexture() const |
| 368 | { |
| 369 | return textureType == TEXTURE_CUBE; |
| 370 | } |
| 371 | |
| 372 | bool Sampler::hasVolumeTexture() const |
| 373 | { |
Alexis Hetu | f15e894 | 2015-12-01 15:13:23 -0500 | [diff] [blame] | 374 | return textureType == TEXTURE_3D || textureType == TEXTURE_2D_ARRAY; |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 375 | } |
| 376 | |
| 377 | const Texture &Sampler::getTextureData() |
| 378 | { |
| 379 | return texture; |
| 380 | } |
| 381 | |
| 382 | MipmapType Sampler::mipmapFilter() const |
| 383 | { |
| 384 | if(mipmapFilterState != MIPMAP_NONE) |
| 385 | { |
| 386 | for(int i = 1; i < MIPMAP_LEVELS; i++) |
| 387 | { |
| 388 | if(texture.mipmap[0].buffer[0] != texture.mipmap[i].buffer[0]) |
| 389 | { |
| 390 | return mipmapFilterState; |
| 391 | } |
| 392 | } |
| 393 | } |
| 394 | |
| 395 | // Only one mipmap level |
| 396 | return MIPMAP_NONE; |
| 397 | } |
| 398 | |
| 399 | bool Sampler::hasNPOTTexture() const |
| 400 | { |
| 401 | if(textureType == TEXTURE_NULL) |
| 402 | { |
| 403 | return false; |
| 404 | } |
| 405 | |
Nicolas Capens | adb305a | 2016-04-21 13:59:20 -0400 | [diff] [blame] | 406 | for(int i = 0; i < MIPMAP_LEVELS; i++) |
John Bauman | 19bac1e | 2014-05-06 15:23:49 -0400 | [diff] [blame] | 407 | { |
Nicolas Capens | adb305a | 2016-04-21 13:59:20 -0400 | [diff] [blame] | 408 | if(texture.mipmap[i].width[0] != texture.mipmap[i].onePitchP[1]) |
| 409 | { |
| 410 | return true; // Shifting of the texture coordinates doesn't yield the correct address, so using multiply by pitch |
| 411 | } |
John Bauman | 19bac1e | 2014-05-06 15:23:49 -0400 | [diff] [blame] | 412 | } |
| 413 | |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 414 | return !isPow2(texture.mipmap[0].width[0]) || !isPow2(texture.mipmap[0].height[0]) || !isPow2(texture.mipmap[0].depth[0]); |
| 415 | } |
| 416 | |
| 417 | TextureType Sampler::getTextureType() const |
| 418 | { |
| 419 | return textureType; |
| 420 | } |
| 421 | |
| 422 | FilterType Sampler::getTextureFilter() const |
| 423 | { |
| 424 | FilterType filter = textureFilter; |
| 425 | |
| 426 | if(gather && Surface::componentCount(internalTextureFormat) == 1) |
| 427 | { |
| 428 | filter = FILTER_GATHER; |
| 429 | } |
| 430 | |
| 431 | if(textureType != TEXTURE_2D || texture.maxAnisotropy == 1.0f) |
| 432 | { |
| 433 | return (FilterType)min(filter, FILTER_LINEAR); |
| 434 | } |
| 435 | |
| 436 | return filter; |
| 437 | } |
| 438 | |
| 439 | AddressingMode Sampler::getAddressingModeU() const |
| 440 | { |
| 441 | if(hasCubeTexture()) |
| 442 | { |
| 443 | return ADDRESSING_CLAMP; |
| 444 | } |
| 445 | |
| 446 | return addressingModeU; |
| 447 | } |
| 448 | |
| 449 | AddressingMode Sampler::getAddressingModeV() const |
| 450 | { |
| 451 | if(hasCubeTexture()) |
| 452 | { |
| 453 | return ADDRESSING_CLAMP; |
| 454 | } |
| 455 | |
| 456 | return addressingModeV; |
| 457 | } |
| 458 | |
| 459 | AddressingMode Sampler::getAddressingModeW() const |
| 460 | { |
| 461 | if(hasCubeTexture()) |
| 462 | { |
| 463 | return ADDRESSING_CLAMP; |
| 464 | } |
| 465 | |
Nicolas Capens | 7bb6268 | 2016-02-08 11:30:56 -0500 | [diff] [blame] | 466 | if(textureType == TEXTURE_2D_ARRAY || textureType == TEXTURE_2D) |
| 467 | { |
| 468 | return ADDRESSING_LAYER; |
| 469 | } |
| 470 | |
John Bauman | 8940182 | 2014-05-06 15:04:28 -0400 | [diff] [blame] | 471 | return addressingModeW; |
| 472 | } |
| 473 | } |