herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #ifndef SkLinearBitmapPipeline_sampler_DEFINED |
| 9 | #define SkLinearBitmapPipeline_sampler_DEFINED |
| 10 | |
herb | cf05dcd | 2016-05-11 11:53:36 -0700 | [diff] [blame] | 11 | #include <tuple> |
| 12 | |
herb | 670f01f | 2016-05-13 10:04:46 -0700 | [diff] [blame^] | 13 | #include "SkColor.h" |
| 14 | #include "SkColorPriv.h" |
benjaminwagner | 6c71e0a | 2016-04-07 08:49:31 -0700 | [diff] [blame] | 15 | #include "SkFixed.h" |
herb | d5f2e2e | 2016-04-14 11:16:44 -0700 | [diff] [blame] | 16 | #include "SkHalf.h" |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 17 | #include "SkLinearBitmapPipeline_core.h" |
herb | 670f01f | 2016-05-13 10:04:46 -0700 | [diff] [blame^] | 18 | #include "SkNx.h" |
herb | cf05dcd | 2016-05-11 11:53:36 -0700 | [diff] [blame] | 19 | #include "SkPM4fPriv.h" |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 20 | |
| 21 | namespace { |
| 22 | // Explaination of the math: |
| 23 | // 1 - x x |
| 24 | // +--------+--------+ |
| 25 | // | | | |
| 26 | // 1 - y | px00 | px10 | |
| 27 | // | | | |
| 28 | // +--------+--------+ |
| 29 | // | | | |
| 30 | // y | px01 | px11 | |
| 31 | // | | | |
| 32 | // +--------+--------+ |
| 33 | // |
| 34 | // |
| 35 | // Given a pixelxy each is multiplied by a different factor derived from the fractional part of x |
| 36 | // and y: |
| 37 | // * px00 -> (1 - x)(1 - y) = 1 - x - y + xy |
| 38 | // * px10 -> x(1 - y) = x - xy |
| 39 | // * px01 -> (1 - x)y = y - xy |
| 40 | // * px11 -> xy |
| 41 | // So x * y is calculated first and then used to calculate all the other factors. |
| 42 | static Sk4s VECTORCALL bilerp4(Sk4s xs, Sk4s ys, Sk4f px00, Sk4f px10, |
| 43 | Sk4f px01, Sk4f px11) { |
| 44 | // Calculate fractional xs and ys. |
| 45 | Sk4s fxs = xs - xs.floor(); |
| 46 | Sk4s fys = ys - ys.floor(); |
| 47 | Sk4s fxys{fxs * fys}; |
| 48 | Sk4f sum = px11 * fxys; |
| 49 | sum = sum + px01 * (fys - fxys); |
| 50 | sum = sum + px10 * (fxs - fxys); |
| 51 | sum = sum + px00 * (Sk4f{1.0f} - fxs - fys + fxys); |
| 52 | return sum; |
| 53 | } |
| 54 | |
herb | 15332a8 | 2016-05-12 11:37:00 -0700 | [diff] [blame] | 55 | //////////////////////////////////////////////////////////////////////////////////////////////////// |
| 56 | // PixelGetter is the lowest level interface to the source data. There is a PixelGetter for each |
| 57 | // of the different SkColorTypes. |
| 58 | template <SkColorType colorType, SkColorProfileType colorProfile> class PixelGetter; |
| 59 | |
herb | 670f01f | 2016-05-13 10:04:46 -0700 | [diff] [blame^] | 60 | // Alpha handling: |
| 61 | // The alpha from the paint (tintColor) is used in the blend part of the pipeline to modulate |
| 62 | // the entire bitmap. So, the tint color is given an alpha of 1.0 so that the later alpha can |
| 63 | // modulate this color later. |
| 64 | template <> |
| 65 | class PixelGetter<kAlpha_8_SkColorType, kLinear_SkColorProfileType> { |
| 66 | public: |
| 67 | using Element = uint8_t; |
| 68 | PixelGetter(const SkPixmap& srcPixmap, SkColor tintColor) |
| 69 | : fTintColor{set_alpha(Sk4f_from_SkColor(tintColor), 1.0f)} { } |
| 70 | |
| 71 | Sk4f getPixelAt(const uint8_t* src) { |
| 72 | return fTintColor * (*src * (1.0f/255.0f)); |
| 73 | } |
| 74 | |
| 75 | private: |
| 76 | const Sk4f fTintColor; |
| 77 | }; |
| 78 | |
| 79 | template <SkColorProfileType colorProfile> |
| 80 | class PixelGetter<kRGB_565_SkColorType, colorProfile> { |
| 81 | public: |
| 82 | using Element = uint16_t; |
| 83 | PixelGetter(const SkPixmap& srcPixmap) { } |
| 84 | |
| 85 | Sk4f getPixelAt(const uint16_t* src) { |
| 86 | SkPMColor pixel = SkPixel16ToPixel32(*src); |
| 87 | return colorProfile == kSRGB_SkColorProfileType |
| 88 | ? Sk4f_fromS32(pixel) |
| 89 | : Sk4f_fromL32(pixel); |
| 90 | } |
| 91 | }; |
| 92 | |
| 93 | template <SkColorProfileType colorProfile> |
| 94 | class PixelGetter<kARGB_4444_SkColorType, colorProfile> { |
| 95 | public: |
| 96 | using Element = uint16_t; |
| 97 | PixelGetter(const SkPixmap& srcPixmap) { } |
| 98 | |
| 99 | Sk4f getPixelAt(const uint16_t* src) { |
| 100 | SkPMColor pixel = SkPixel4444ToPixel32(*src); |
| 101 | return colorProfile == kSRGB_SkColorProfileType |
| 102 | ? Sk4f_fromS32(pixel) |
| 103 | : Sk4f_fromL32(pixel); |
| 104 | } |
| 105 | }; |
| 106 | |
herb | 15332a8 | 2016-05-12 11:37:00 -0700 | [diff] [blame] | 107 | template <SkColorProfileType colorProfile> |
| 108 | class PixelGetter<kRGBA_8888_SkColorType, colorProfile> { |
| 109 | public: |
| 110 | using Element = uint32_t; |
| 111 | PixelGetter(const SkPixmap& srcPixmap) { } |
| 112 | |
| 113 | Sk4f getPixelAt(const uint32_t* src) { |
| 114 | return colorProfile == kSRGB_SkColorProfileType |
| 115 | ? Sk4f_fromS32(*src) |
| 116 | : Sk4f_fromL32(*src); |
| 117 | } |
| 118 | }; |
| 119 | |
| 120 | template <SkColorProfileType colorProfile> |
| 121 | class PixelGetter<kBGRA_8888_SkColorType, colorProfile> { |
| 122 | public: |
| 123 | using Element = uint32_t; |
| 124 | PixelGetter(const SkPixmap& srcPixmap) { } |
| 125 | |
| 126 | Sk4f getPixelAt(const uint32_t* src) { |
| 127 | Sk4f pixel = colorProfile == kSRGB_SkColorProfileType |
| 128 | ? Sk4f_fromS32(*src) |
| 129 | : Sk4f_fromL32(*src); |
herb | 670f01f | 2016-05-13 10:04:46 -0700 | [diff] [blame^] | 130 | return swizzle_rb(pixel); |
herb | 15332a8 | 2016-05-12 11:37:00 -0700 | [diff] [blame] | 131 | } |
| 132 | }; |
| 133 | |
| 134 | template <SkColorProfileType colorProfile> |
| 135 | class PixelGetter<kIndex_8_SkColorType, colorProfile> { |
| 136 | public: |
| 137 | using Element = uint8_t; |
| 138 | PixelGetter(const SkPixmap& srcPixmap) { |
| 139 | SkColorTable* skColorTable = srcPixmap.ctable(); |
| 140 | SkASSERT(skColorTable != nullptr); |
| 141 | |
| 142 | fColorTable = (Sk4f*)SkAlign16((intptr_t)fColorTableStorage.get()); |
| 143 | for (int i = 0; i < skColorTable->count(); i++) { |
| 144 | fColorTable[i] = this->convertPixel((*skColorTable)[i]); |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | PixelGetter(const PixelGetter& strategy) { |
| 149 | fColorTable = (Sk4f*)SkAlign16((intptr_t)fColorTableStorage.get()); |
| 150 | // TODO: figure out the count. |
| 151 | for (int i = 0; i < 256; i++) { |
| 152 | fColorTable[i] = strategy.fColorTable[i]; |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | Sk4f getPixelAt(const uint8_t* src) { |
| 157 | return fColorTable[*src]; |
| 158 | } |
| 159 | |
| 160 | private: |
| 161 | static const size_t kColorTableSize = sizeof(Sk4f[256]) + 12; |
| 162 | Sk4f convertPixel(SkPMColor pmColor) { |
| 163 | Sk4f pixel = to_4f(pmColor); |
| 164 | float alpha = get_alpha(pixel); |
| 165 | if (alpha != 0.0f) { |
| 166 | float invAlpha = 1.0f / alpha; |
| 167 | Sk4f normalize = {invAlpha, invAlpha, invAlpha, 1.0f / 255.0f}; |
| 168 | pixel = pixel * normalize; |
| 169 | if (colorProfile == kSRGB_SkColorProfileType) { |
| 170 | pixel = linear_to_srgb(pixel); |
| 171 | } |
| 172 | return pixel; |
| 173 | } else { |
| 174 | return Sk4f{0.0f}; |
| 175 | } |
| 176 | } |
| 177 | SkAutoMalloc fColorTableStorage{kColorTableSize}; |
| 178 | Sk4f* fColorTable; |
| 179 | }; |
| 180 | |
herb | 670f01f | 2016-05-13 10:04:46 -0700 | [diff] [blame^] | 181 | template <SkColorProfileType colorProfile> |
| 182 | class PixelGetter<kGray_8_SkColorType, colorProfile> { |
| 183 | public: |
| 184 | using Element = uint8_t; |
| 185 | PixelGetter(const SkPixmap& srcPixmap) { } |
| 186 | |
| 187 | Sk4f getPixelAt(const uint8_t* src) { |
| 188 | float gray = *src * (1.0f/255.0f); |
| 189 | Sk4f pixel = Sk4f{gray, gray, gray, 1.0f}; |
| 190 | return colorProfile == kSRGB_SkColorProfileType |
| 191 | ? srgb_to_linear(pixel) |
| 192 | : pixel; |
| 193 | } |
| 194 | }; |
| 195 | |
herb | 15332a8 | 2016-05-12 11:37:00 -0700 | [diff] [blame] | 196 | template <> |
| 197 | class PixelGetter<kRGBA_F16_SkColorType, kLinear_SkColorProfileType> { |
| 198 | public: |
| 199 | using Element = uint64_t; |
| 200 | PixelGetter(const SkPixmap& srcPixmap) { } |
| 201 | |
| 202 | Sk4f getPixelAt(const uint64_t* src) { |
| 203 | return SkHalfToFloat_01(*src); |
| 204 | } |
| 205 | }; |
| 206 | |
| 207 | //////////////////////////////////////////////////////////////////////////////////////////////////// |
| 208 | // PixelAccessor handles all the same plumbing for all the PixelGetters. |
| 209 | template <SkColorType colorType, SkColorProfileType colorProfile> |
| 210 | class PixelAccessor { |
| 211 | using Element = typename PixelGetter<colorType, colorProfile>::Element; |
| 212 | public: |
herb | 670f01f | 2016-05-13 10:04:46 -0700 | [diff] [blame^] | 213 | template <typename... Args> |
| 214 | PixelAccessor(const SkPixmap& srcPixmap, Args&&... args) |
herb | 15332a8 | 2016-05-12 11:37:00 -0700 | [diff] [blame] | 215 | : fSrc{static_cast<const Element*>(srcPixmap.addr())} |
| 216 | , fWidth{srcPixmap.rowBytesAsPixels()} |
herb | 670f01f | 2016-05-13 10:04:46 -0700 | [diff] [blame^] | 217 | , fGetter{srcPixmap, std::move<Args>(args)...} { } |
herb | 15332a8 | 2016-05-12 11:37:00 -0700 | [diff] [blame] | 218 | |
| 219 | void VECTORCALL getFewPixels(int n, Sk4s xs, Sk4s ys, Sk4f* px0, Sk4f* px1, Sk4f* px2) { |
| 220 | Sk4i XIs = SkNx_cast<int, SkScalar>(xs); |
| 221 | Sk4i YIs = SkNx_cast<int, SkScalar>(ys); |
| 222 | Sk4i bufferLoc = YIs * fWidth + XIs; |
| 223 | switch (n) { |
| 224 | case 3: |
| 225 | *px2 = this->getPixelAt(bufferLoc[2]); |
| 226 | case 2: |
| 227 | *px1 = this->getPixelAt(bufferLoc[1]); |
| 228 | case 1: |
| 229 | *px0 = this->getPixelAt(bufferLoc[0]); |
| 230 | default: |
| 231 | break; |
| 232 | } |
| 233 | } |
| 234 | |
| 235 | void VECTORCALL get4Pixels(Sk4s xs, Sk4s ys, Sk4f* px0, Sk4f* px1, Sk4f* px2, Sk4f* px3) { |
| 236 | Sk4i XIs = SkNx_cast<int, SkScalar>(xs); |
| 237 | Sk4i YIs = SkNx_cast<int, SkScalar>(ys); |
| 238 | Sk4i bufferLoc = YIs * fWidth + XIs; |
| 239 | *px0 = this->getPixelAt(bufferLoc[0]); |
| 240 | *px1 = this->getPixelAt(bufferLoc[1]); |
| 241 | *px2 = this->getPixelAt(bufferLoc[2]); |
| 242 | *px3 = this->getPixelAt(bufferLoc[3]); |
| 243 | } |
| 244 | |
| 245 | void get4Pixels(const void* src, int index, Sk4f* px0, Sk4f* px1, Sk4f* px2, Sk4f* px3) { |
| 246 | *px0 = this->getPixelFromRow(src, index + 0); |
| 247 | *px1 = this->getPixelFromRow(src, index + 1); |
| 248 | *px2 = this->getPixelFromRow(src, index + 2); |
| 249 | *px3 = this->getPixelFromRow(src, index + 3); |
| 250 | } |
| 251 | |
| 252 | Sk4f getPixelFromRow(const void* row, int index) { |
| 253 | const Element* src = static_cast<const Element*>(row); |
| 254 | return fGetter.getPixelAt(src + index); |
| 255 | } |
| 256 | |
| 257 | Sk4f getPixelAt(int index) { |
| 258 | return this->getPixelFromRow(fSrc, index); |
| 259 | } |
| 260 | |
| 261 | const void* row(int y) const { return fSrc + y * fWidth[0]; } |
| 262 | |
| 263 | private: |
| 264 | const Element* const fSrc; |
| 265 | const Sk4i fWidth; |
| 266 | PixelGetter<colorType, colorProfile> fGetter; |
| 267 | }; |
| 268 | |
| 269 | //////////////////////////////////////////////////////////////////////////////////////////////////// |
| 270 | // GeneralSampler handles all the different sampling scenarios. It makes runtime decisions to |
| 271 | // choose the fastest stratagy given a particular job. It ultimately uses PixelGetters to access |
| 272 | // the pixels. |
| 273 | template<SkColorType colorType, SkColorProfileType colorProfile, typename Next> |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 274 | class GeneralSampler { |
| 275 | public: |
| 276 | template<typename... Args> |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 277 | GeneralSampler(SkLinearBitmapPipeline::BlendProcessorInterface* next, Args&& ... args) |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 278 | : fNext{next}, fStrategy{std::forward<Args>(args)...} { } |
| 279 | |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 280 | GeneralSampler(SkLinearBitmapPipeline::BlendProcessorInterface* next, |
| 281 | const GeneralSampler& sampler) |
| 282 | : fNext{next}, fStrategy{sampler.fStrategy} { } |
| 283 | |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 284 | void VECTORCALL nearestListFew(int n, Sk4s xs, Sk4s ys) { |
| 285 | SkASSERT(0 < n && n < 4); |
| 286 | Sk4f px0, px1, px2; |
| 287 | fStrategy.getFewPixels(n, xs, ys, &px0, &px1, &px2); |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 288 | if (n >= 1) fNext->blendPixel(px0); |
| 289 | if (n >= 2) fNext->blendPixel(px1); |
| 290 | if (n >= 3) fNext->blendPixel(px2); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 291 | } |
| 292 | |
| 293 | void VECTORCALL nearestList4(Sk4s xs, Sk4s ys) { |
| 294 | Sk4f px0, px1, px2, px3; |
| 295 | fStrategy.get4Pixels(xs, ys, &px0, &px1, &px2, &px3); |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 296 | fNext->blend4Pixels(px0, px1, px2, px3); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 297 | } |
| 298 | |
| 299 | void nearestSpan(Span span) { |
| 300 | SkASSERT(!span.isEmpty()); |
| 301 | SkPoint start; |
| 302 | SkScalar length; |
| 303 | int count; |
| 304 | std::tie(start, length, count) = span; |
| 305 | SkScalar absLength = SkScalarAbs(length); |
| 306 | if (absLength < (count - 1)) { |
| 307 | this->nearestSpanSlowRate(span); |
| 308 | } else if (absLength == (count - 1)) { |
| 309 | this->nearestSpanUnitRate(span); |
| 310 | } else { |
| 311 | this->nearestSpanFastRate(span); |
| 312 | } |
| 313 | } |
| 314 | |
| 315 | Sk4f bilerNonEdgePixel(SkScalar x, SkScalar y) { |
| 316 | Sk4f px00, px10, px01, px11; |
| 317 | Sk4f xs = Sk4f{x}; |
| 318 | Sk4f ys = Sk4f{y}; |
| 319 | Sk4f sampleXs = xs + Sk4f{-0.5f, 0.5f, -0.5f, 0.5f}; |
| 320 | Sk4f sampleYs = ys + Sk4f{-0.5f, -0.5f, 0.5f, 0.5f}; |
| 321 | fStrategy.get4Pixels(sampleXs, sampleYs, &px00, &px10, &px01, &px11); |
| 322 | return bilerp4(xs, ys, px00, px10, px01, px11); |
| 323 | } |
| 324 | |
| 325 | void VECTORCALL bilerpListFew(int n, Sk4s xs, Sk4s ys) { |
| 326 | SkASSERT(0 < n && n < 4); |
| 327 | auto bilerpPixel = [&](int index) { |
| 328 | return this->bilerNonEdgePixel(xs[index], ys[index]); |
| 329 | }; |
| 330 | |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 331 | if (n >= 1) fNext->blendPixel(bilerpPixel(0)); |
| 332 | if (n >= 2) fNext->blendPixel(bilerpPixel(1)); |
| 333 | if (n >= 3) fNext->blendPixel(bilerpPixel(2)); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 334 | } |
| 335 | |
| 336 | void VECTORCALL bilerpList4(Sk4s xs, Sk4s ys) { |
| 337 | auto bilerpPixel = [&](int index) { |
| 338 | return this->bilerNonEdgePixel(xs[index], ys[index]); |
| 339 | }; |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 340 | fNext->blend4Pixels(bilerpPixel(0), bilerpPixel(1), bilerpPixel(2), bilerpPixel(3)); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 341 | } |
| 342 | |
| 343 | void VECTORCALL bilerpEdge(Sk4s sampleXs, Sk4s sampleYs) { |
| 344 | Sk4f px00, px10, px01, px11; |
| 345 | Sk4f xs = Sk4f{sampleXs[0]}; |
| 346 | Sk4f ys = Sk4f{sampleYs[0]}; |
| 347 | fStrategy.get4Pixels(sampleXs, sampleYs, &px00, &px10, &px01, &px11); |
| 348 | Sk4f pixel = bilerp4(xs, ys, px00, px10, px01, px11); |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 349 | fNext->blendPixel(pixel); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 350 | } |
| 351 | |
| 352 | void bilerpSpan(Span span) { |
| 353 | this->bilerpSpanWithY(span, span.startY()); |
| 354 | } |
| 355 | |
| 356 | void bilerpSpanWithY(Span span, SkScalar y) { |
| 357 | SkASSERT(!span.isEmpty()); |
| 358 | SkPoint start; |
| 359 | SkScalar length; |
| 360 | int count; |
| 361 | std::tie(start, length, count) = span; |
| 362 | SkScalar absLength = SkScalarAbs(length); |
| 363 | if (absLength == 0.0f) { |
| 364 | this->bilerpSpanZeroRate(span, y); |
| 365 | } else if (absLength < (count - 1)) { |
| 366 | this->bilerpSpanSlowRate(span, y); |
| 367 | } else if (absLength == (count - 1)) { |
| 368 | if (std::fmod(span.startX() - 0.5f, 1.0f) == 0.0f) { |
| 369 | if (std::fmod(span.startY() - 0.5f, 1.0f) == 0.0f) { |
| 370 | this->nearestSpanUnitRate(span); |
| 371 | } else { |
| 372 | this->bilerpSpanUnitRateAlignedX(span, y); |
| 373 | } |
| 374 | } else { |
| 375 | this->bilerpSpanUnitRate(span, y); |
| 376 | } |
| 377 | } else { |
| 378 | this->bilerpSpanFastRate(span, y); |
| 379 | } |
| 380 | } |
| 381 | |
| 382 | private: |
| 383 | // When moving through source space more slowly than dst space (zoomed in), |
| 384 | // we'll be sampling from the same source pixel more than once. |
| 385 | void nearestSpanSlowRate(Span span) { |
| 386 | SkPoint start; |
| 387 | SkScalar length; |
| 388 | int count; |
| 389 | std::tie(start, length, count) = span; |
| 390 | SkScalar x = X(start); |
| 391 | SkFixed fx = SkScalarToFixed(x); |
| 392 | SkScalar dx = length / (count - 1); |
| 393 | SkFixed fdx = SkScalarToFixed(dx); |
| 394 | |
| 395 | const void* row = fStrategy.row((int)std::floor(Y(start))); |
| 396 | Next* next = fNext; |
| 397 | |
| 398 | int ix = SkFixedFloorToInt(fx); |
| 399 | int prevIX = ix; |
herb | dd96489 | 2016-05-11 10:39:55 -0700 | [diff] [blame] | 400 | Sk4f fpixel = fStrategy.getPixelFromRow(row, ix); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 401 | |
| 402 | // When dx is less than one, each pixel is used more than once. Using the fixed point fx |
| 403 | // allows the code to quickly check that the same pixel is being used. The code uses this |
| 404 | // same pixel check to do the sRGB and normalization only once. |
| 405 | auto getNextPixel = [&]() { |
| 406 | if (ix != prevIX) { |
herb | dd96489 | 2016-05-11 10:39:55 -0700 | [diff] [blame] | 407 | fpixel = fStrategy.getPixelFromRow(row, ix); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 408 | prevIX = ix; |
| 409 | } |
| 410 | fx += fdx; |
| 411 | ix = SkFixedFloorToInt(fx); |
| 412 | return fpixel; |
| 413 | }; |
| 414 | |
| 415 | while (count >= 4) { |
| 416 | Sk4f px0 = getNextPixel(); |
| 417 | Sk4f px1 = getNextPixel(); |
| 418 | Sk4f px2 = getNextPixel(); |
| 419 | Sk4f px3 = getNextPixel(); |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 420 | next->blend4Pixels(px0, px1, px2, px3); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 421 | count -= 4; |
| 422 | } |
| 423 | while (count > 0) { |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 424 | next->blendPixel(getNextPixel()); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 425 | count -= 1; |
| 426 | } |
| 427 | } |
| 428 | |
| 429 | // We're moving through source space at a rate of 1 source pixel per 1 dst pixel. |
| 430 | // We'll never re-use pixels, but we can at least load contiguous pixels. |
| 431 | void nearestSpanUnitRate(Span span) { |
| 432 | SkPoint start; |
| 433 | SkScalar length; |
| 434 | int count; |
| 435 | std::tie(start, length, count) = span; |
| 436 | int ix = SkScalarFloorToInt(X(start)); |
| 437 | const void* row = fStrategy.row((int)std::floor(Y(start))); |
| 438 | Next* next = fNext; |
| 439 | if (length > 0) { |
| 440 | while (count >= 4) { |
| 441 | Sk4f px0, px1, px2, px3; |
| 442 | fStrategy.get4Pixels(row, ix, &px0, &px1, &px2, &px3); |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 443 | next->blend4Pixels(px0, px1, px2, px3); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 444 | ix += 4; |
| 445 | count -= 4; |
| 446 | } |
| 447 | |
| 448 | while (count > 0) { |
herb | dd96489 | 2016-05-11 10:39:55 -0700 | [diff] [blame] | 449 | next->blendPixel(fStrategy.getPixelFromRow(row, ix)); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 450 | ix += 1; |
| 451 | count -= 1; |
| 452 | } |
| 453 | } else { |
| 454 | while (count >= 4) { |
| 455 | Sk4f px0, px1, px2, px3; |
| 456 | fStrategy.get4Pixels(row, ix - 3, &px3, &px2, &px1, &px0); |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 457 | next->blend4Pixels(px0, px1, px2, px3); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 458 | ix -= 4; |
| 459 | count -= 4; |
| 460 | } |
| 461 | |
| 462 | while (count > 0) { |
herb | dd96489 | 2016-05-11 10:39:55 -0700 | [diff] [blame] | 463 | next->blendPixel(fStrategy.getPixelFromRow(row, ix)); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 464 | ix -= 1; |
| 465 | count -= 1; |
| 466 | } |
| 467 | } |
| 468 | } |
| 469 | |
| 470 | // We're moving through source space faster than dst (zoomed out), |
| 471 | // so we'll never reuse a source pixel or be able to do contiguous loads. |
| 472 | void nearestSpanFastRate(Span span) { |
| 473 | struct NearestWrapper { |
| 474 | void VECTORCALL pointListFew(int n, Sk4s xs, Sk4s ys) { |
| 475 | fSampler.nearestListFew(n, xs, ys); |
| 476 | } |
| 477 | |
| 478 | void VECTORCALL pointList4(Sk4s xs, Sk4s ys) { |
| 479 | fSampler.nearestList4(xs, ys); |
| 480 | } |
| 481 | |
| 482 | GeneralSampler& fSampler; |
| 483 | }; |
| 484 | NearestWrapper wrapper{*this}; |
| 485 | span_fallback(span, &wrapper); |
| 486 | } |
| 487 | |
| 488 | void bilerpSpanZeroRate(Span span, SkScalar y1) { |
| 489 | SkScalar y0 = span.startY() - 0.5f; |
| 490 | y1 += 0.5f; |
| 491 | int iy0 = SkScalarFloorToInt(y0); |
| 492 | SkScalar filterY1 = y0 - iy0; |
| 493 | SkScalar filterY0 = 1.0f - filterY1; |
| 494 | int iy1 = SkScalarFloorToInt(y1); |
| 495 | int ix = SkScalarFloorToInt(span.startX()); |
herb | dd96489 | 2016-05-11 10:39:55 -0700 | [diff] [blame] | 496 | Sk4f pixelY0 = fStrategy.getPixelFromRow(fStrategy.row(iy0), ix); |
| 497 | Sk4f pixelY1 = fStrategy.getPixelFromRow(fStrategy.row(iy1), ix); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 498 | Sk4f filterPixel = pixelY0 * filterY0 + pixelY1 * filterY1; |
| 499 | int count = span.count(); |
| 500 | while (count >= 4) { |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 501 | fNext->blend4Pixels(filterPixel, filterPixel, filterPixel, filterPixel); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 502 | count -= 4; |
| 503 | } |
| 504 | while (count > 0) { |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 505 | fNext->blendPixel(filterPixel); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 506 | count -= 1; |
| 507 | } |
| 508 | } |
| 509 | |
| 510 | // When moving through source space more slowly than dst space (zoomed in), |
| 511 | // we'll be sampling from the same source pixel more than once. |
| 512 | void bilerpSpanSlowRate(Span span, SkScalar ry1) { |
| 513 | SkPoint start; |
| 514 | SkScalar length; |
| 515 | int count; |
| 516 | std::tie(start, length, count) = span; |
| 517 | SkFixed fx = SkScalarToFixed(X(start) |
| 518 | -0.5f); |
| 519 | |
| 520 | SkFixed fdx = SkScalarToFixed(length / (count - 1)); |
| 521 | //start = start + SkPoint{-0.5f, -0.5f}; |
| 522 | |
| 523 | Sk4f xAdjust; |
| 524 | if (fdx >= 0) { |
| 525 | xAdjust = Sk4f{-1.0f}; |
| 526 | } else { |
| 527 | xAdjust = Sk4f{1.0f}; |
| 528 | } |
| 529 | int ix = SkFixedFloorToInt(fx); |
| 530 | int ioldx = ix; |
| 531 | Sk4f x{SkFixedToScalar(fx) - ix}; |
| 532 | Sk4f dx{SkFixedToScalar(fdx)}; |
| 533 | SkScalar ry0 = Y(start) - 0.5f; |
| 534 | ry1 += 0.5f; |
| 535 | SkScalar yFloor = std::floor(ry0); |
| 536 | Sk4f y1 = Sk4f{ry0 - yFloor}; |
| 537 | Sk4f y0 = Sk4f{1.0f} - y1; |
herb | 222f8ff | 2016-03-23 15:14:23 -0700 | [diff] [blame] | 538 | const void* const row0 = fStrategy.row(SkScalarFloorToInt(ry0)); |
| 539 | const void* const row1 = fStrategy.row(SkScalarFloorToInt(ry1)); |
herb | dd96489 | 2016-05-11 10:39:55 -0700 | [diff] [blame] | 540 | Sk4f fpixel00 = y0 * fStrategy.getPixelFromRow(row0, ix); |
| 541 | Sk4f fpixel01 = y1 * fStrategy.getPixelFromRow(row1, ix); |
| 542 | Sk4f fpixel10 = y0 * fStrategy.getPixelFromRow(row0, ix + 1); |
| 543 | Sk4f fpixel11 = y1 * fStrategy.getPixelFromRow(row1, ix + 1); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 544 | auto getNextPixel = [&]() { |
| 545 | if (ix != ioldx) { |
| 546 | fpixel00 = fpixel10; |
| 547 | fpixel01 = fpixel11; |
herb | dd96489 | 2016-05-11 10:39:55 -0700 | [diff] [blame] | 548 | fpixel10 = y0 * fStrategy.getPixelFromRow(row0, ix + 1); |
| 549 | fpixel11 = y1 * fStrategy.getPixelFromRow(row1, ix + 1); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 550 | ioldx = ix; |
| 551 | x = x + xAdjust; |
| 552 | } |
| 553 | |
| 554 | Sk4f x0, x1; |
| 555 | x0 = Sk4f{1.0f} - x; |
| 556 | x1 = x; |
| 557 | Sk4f fpixel = x0 * (fpixel00 + fpixel01) + x1 * (fpixel10 + fpixel11); |
| 558 | fx += fdx; |
| 559 | ix = SkFixedFloorToInt(fx); |
| 560 | x = x + dx; |
| 561 | return fpixel; |
| 562 | }; |
| 563 | |
| 564 | while (count >= 4) { |
| 565 | Sk4f fpixel0 = getNextPixel(); |
| 566 | Sk4f fpixel1 = getNextPixel(); |
| 567 | Sk4f fpixel2 = getNextPixel(); |
| 568 | Sk4f fpixel3 = getNextPixel(); |
| 569 | |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 570 | fNext->blend4Pixels(fpixel0, fpixel1, fpixel2, fpixel3); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 571 | count -= 4; |
| 572 | } |
| 573 | |
| 574 | while (count > 0) { |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 575 | fNext->blendPixel(getNextPixel()); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 576 | |
| 577 | count -= 1; |
| 578 | } |
| 579 | } |
| 580 | |
| 581 | // We're moving through source space at a rate of 1 source pixel per 1 dst pixel. |
| 582 | // We'll never re-use pixels, but we can at least load contiguous pixels. |
| 583 | void bilerpSpanUnitRate(Span span, SkScalar y1) { |
| 584 | y1 += 0.5f; |
| 585 | SkScalar y0 = span.startY() - 0.5f; |
| 586 | int iy0 = SkScalarFloorToInt(y0); |
| 587 | SkScalar filterY1 = y0 - iy0; |
| 588 | SkScalar filterY0 = 1.0f - filterY1; |
| 589 | int iy1 = SkScalarFloorToInt(y1); |
| 590 | const void* rowY0 = fStrategy.row(iy0); |
| 591 | const void* rowY1 = fStrategy.row(iy1); |
| 592 | SkScalar x0 = span.startX() - 0.5f; |
| 593 | int ix0 = SkScalarFloorToInt(x0); |
| 594 | SkScalar filterX1 = x0 - ix0; |
| 595 | SkScalar filterX0 = 1.0f - filterX1; |
| 596 | |
| 597 | auto getPixelY0 = [&]() { |
herb | dd96489 | 2016-05-11 10:39:55 -0700 | [diff] [blame] | 598 | Sk4f px = fStrategy.getPixelFromRow(rowY0, ix0); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 599 | return px * filterY0; |
| 600 | }; |
| 601 | |
| 602 | auto getPixelY1 = [&]() { |
herb | dd96489 | 2016-05-11 10:39:55 -0700 | [diff] [blame] | 603 | Sk4f px = fStrategy.getPixelFromRow(rowY1, ix0); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 604 | return px * filterY1; |
| 605 | }; |
| 606 | |
| 607 | auto get4PixelsY0 = [&](int ix, Sk4f* px0, Sk4f* px1, Sk4f* px2, Sk4f* px3) { |
| 608 | fStrategy.get4Pixels(rowY0, ix, px0, px1, px2, px3); |
| 609 | *px0 = *px0 * filterY0; |
| 610 | *px1 = *px1 * filterY0; |
| 611 | *px2 = *px2 * filterY0; |
| 612 | *px3 = *px3 * filterY0; |
| 613 | }; |
| 614 | |
| 615 | auto get4PixelsY1 = [&](int ix, Sk4f* px0, Sk4f* px1, Sk4f* px2, Sk4f* px3) { |
| 616 | fStrategy.get4Pixels(rowY1, ix, px0, px1, px2, px3); |
| 617 | *px0 = *px0 * filterY1; |
| 618 | *px1 = *px1 * filterY1; |
| 619 | *px2 = *px2 * filterY1; |
| 620 | *px3 = *px3 * filterY1; |
| 621 | }; |
| 622 | |
| 623 | auto lerp = [&](Sk4f& pixelX0, Sk4f& pixelX1) { |
| 624 | return pixelX0 * filterX0 + pixelX1 * filterX1; |
| 625 | }; |
| 626 | |
| 627 | // Mid making 4 unit rate. |
| 628 | Sk4f pxB = getPixelY0() + getPixelY1(); |
| 629 | if (span.length() > 0) { |
| 630 | int count = span.count(); |
| 631 | while (count >= 4) { |
| 632 | Sk4f px00, px10, px20, px30; |
| 633 | get4PixelsY0(ix0, &px00, &px10, &px20, &px30); |
| 634 | Sk4f px01, px11, px21, px31; |
| 635 | get4PixelsY1(ix0, &px01, &px11, &px21, &px31); |
| 636 | Sk4f pxS0 = px00 + px01; |
| 637 | Sk4f px0 = lerp(pxB, pxS0); |
| 638 | Sk4f pxS1 = px10 + px11; |
| 639 | Sk4f px1 = lerp(pxS0, pxS1); |
| 640 | Sk4f pxS2 = px20 + px21; |
| 641 | Sk4f px2 = lerp(pxS1, pxS2); |
| 642 | Sk4f pxS3 = px30 + px31; |
| 643 | Sk4f px3 = lerp(pxS2, pxS3); |
| 644 | pxB = pxS3; |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 645 | fNext->blend4Pixels(px0, px1, px2, px3); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 646 | ix0 += 4; |
| 647 | count -= 4; |
| 648 | } |
| 649 | while (count > 0) { |
herb | dd96489 | 2016-05-11 10:39:55 -0700 | [diff] [blame] | 650 | Sk4f pixelY0 = fStrategy.getPixelFromRow(rowY0, ix0); |
| 651 | Sk4f pixelY1 = fStrategy.getPixelFromRow(rowY1, ix0); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 652 | |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 653 | fNext->blendPixel(lerp(pixelY0, pixelY1)); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 654 | ix0 += 1; |
| 655 | count -= 1; |
| 656 | } |
| 657 | } else { |
| 658 | int count = span.count(); |
| 659 | while (count >= 4) { |
| 660 | Sk4f px00, px10, px20, px30; |
| 661 | get4PixelsY0(ix0 - 3, &px00, &px10, &px20, &px30); |
| 662 | Sk4f px01, px11, px21, px31; |
| 663 | get4PixelsY1(ix0 - 3, &px01, &px11, &px21, &px31); |
| 664 | Sk4f pxS3 = px30 + px31; |
| 665 | Sk4f px0 = lerp(pxS3, pxB); |
| 666 | Sk4f pxS2 = px20 + px21; |
| 667 | Sk4f px1 = lerp(pxS2, pxS3); |
| 668 | Sk4f pxS1 = px10 + px11; |
| 669 | Sk4f px2 = lerp(pxS1, pxS2); |
| 670 | Sk4f pxS0 = px00 + px01; |
| 671 | Sk4f px3 = lerp(pxS0, pxS1); |
| 672 | pxB = pxS0; |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 673 | fNext->blend4Pixels(px0, px1, px2, px3); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 674 | ix0 -= 4; |
| 675 | count -= 4; |
| 676 | } |
| 677 | while (count > 0) { |
herb | dd96489 | 2016-05-11 10:39:55 -0700 | [diff] [blame] | 678 | Sk4f pixelY0 = fStrategy.getPixelFromRow(rowY0, ix0); |
| 679 | Sk4f pixelY1 = fStrategy.getPixelFromRow(rowY1, ix0); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 680 | |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 681 | fNext->blendPixel(lerp(pixelY0, pixelY1)); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 682 | ix0 -= 1; |
| 683 | count -= 1; |
| 684 | } |
| 685 | } |
| 686 | } |
| 687 | |
| 688 | void bilerpSpanUnitRateAlignedX(Span span, SkScalar y1) { |
| 689 | SkScalar y0 = span.startY() - 0.5f; |
| 690 | y1 += 0.5f; |
| 691 | int iy0 = SkScalarFloorToInt(y0); |
| 692 | SkScalar filterY1 = y0 - iy0; |
| 693 | SkScalar filterY0 = 1.0f - filterY1; |
| 694 | int iy1 = SkScalarFloorToInt(y1); |
| 695 | int ix = SkScalarFloorToInt(span.startX()); |
| 696 | const void* rowY0 = fStrategy.row(iy0); |
| 697 | const void* rowY1 = fStrategy.row(iy1); |
| 698 | auto lerp = [&](Sk4f* pixelY0, Sk4f* pixelY1) { |
| 699 | return *pixelY0 * filterY0 + *pixelY1 * filterY1; |
| 700 | }; |
| 701 | |
| 702 | if (span.length() > 0) { |
| 703 | int count = span.count(); |
| 704 | while (count >= 4) { |
| 705 | Sk4f px00, px10, px20, px30; |
| 706 | fStrategy.get4Pixels(rowY0, ix, &px00, &px10, &px20, &px30); |
| 707 | Sk4f px01, px11, px21, px31; |
| 708 | fStrategy.get4Pixels(rowY1, ix, &px01, &px11, &px21, &px31); |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 709 | fNext->blend4Pixels( |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 710 | lerp(&px00, &px01), lerp(&px10, &px11), lerp(&px20, &px21), lerp(&px30, &px31)); |
| 711 | ix += 4; |
| 712 | count -= 4; |
| 713 | } |
| 714 | while (count > 0) { |
herb | dd96489 | 2016-05-11 10:39:55 -0700 | [diff] [blame] | 715 | Sk4f pixelY0 = fStrategy.getPixelFromRow(rowY0, ix); |
| 716 | Sk4f pixelY1 = fStrategy.getPixelFromRow(rowY1, ix); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 717 | |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 718 | fNext->blendPixel(lerp(&pixelY0, &pixelY1)); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 719 | ix += 1; |
| 720 | count -= 1; |
| 721 | } |
| 722 | } else { |
| 723 | int count = span.count(); |
| 724 | while (count >= 4) { |
| 725 | Sk4f px00, px10, px20, px30; |
| 726 | fStrategy.get4Pixels(rowY0, ix - 3, &px30, &px20, &px10, &px00); |
| 727 | Sk4f px01, px11, px21, px31; |
| 728 | fStrategy.get4Pixels(rowY1, ix - 3, &px31, &px21, &px11, &px01); |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 729 | fNext->blend4Pixels( |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 730 | lerp(&px00, &px01), lerp(&px10, &px11), lerp(&px20, &px21), lerp(&px30, &px31)); |
| 731 | ix -= 4; |
| 732 | count -= 4; |
| 733 | } |
| 734 | while (count > 0) { |
herb | dd96489 | 2016-05-11 10:39:55 -0700 | [diff] [blame] | 735 | Sk4f pixelY0 = fStrategy.getPixelFromRow(rowY0, ix); |
| 736 | Sk4f pixelY1 = fStrategy.getPixelFromRow(rowY1, ix); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 737 | |
herb | 9e0efe5 | 2016-04-08 13:25:28 -0700 | [diff] [blame] | 738 | fNext->blendPixel(lerp(&pixelY0, &pixelY1)); |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 739 | ix -= 1; |
| 740 | count -= 1; |
| 741 | } |
| 742 | } |
| 743 | } |
| 744 | |
| 745 | // We're moving through source space faster than dst (zoomed out), |
| 746 | // so we'll never reuse a source pixel or be able to do contiguous loads. |
| 747 | void bilerpSpanFastRate(Span span, SkScalar y1) { |
| 748 | SkPoint start; |
| 749 | SkScalar length; |
| 750 | int count; |
| 751 | std::tie(start, length, count) = span; |
| 752 | SkScalar x = X(start); |
| 753 | SkScalar y = Y(start); |
| 754 | if (false && y == y1) { |
| 755 | struct BilerpWrapper { |
| 756 | void VECTORCALL pointListFew(int n, Sk4s xs, Sk4s ys) { |
| 757 | fSampler.bilerpListFew(n, xs, ys); |
| 758 | } |
| 759 | |
| 760 | void VECTORCALL pointList4(Sk4s xs, Sk4s ys) { |
| 761 | fSampler.bilerpList4(xs, ys); |
| 762 | } |
| 763 | |
| 764 | GeneralSampler& fSampler; |
| 765 | }; |
| 766 | BilerpWrapper wrapper{*this}; |
| 767 | span_fallback(span, &wrapper); |
| 768 | } else { |
| 769 | SkScalar dx = length / (count - 1); |
| 770 | Sk4f ys = {y - 0.5f, y - 0.5f, y1 + 0.5f, y1 + 0.5f}; |
| 771 | while (count > 0) { |
| 772 | Sk4f xs = Sk4f{-0.5f, 0.5f, -0.5f, 0.5f} + Sk4f{x}; |
| 773 | this->bilerpEdge(xs, ys); |
| 774 | x += dx; |
| 775 | count -= 1; |
| 776 | } |
| 777 | } |
| 778 | } |
| 779 | |
herb | 670f01f | 2016-05-13 10:04:46 -0700 | [diff] [blame^] | 780 | Next* const fNext; |
herb | 15332a8 | 2016-05-12 11:37:00 -0700 | [diff] [blame] | 781 | PixelAccessor<colorType, colorProfile> fStrategy; |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 782 | }; |
| 783 | |
herb | 6eff52a | 2016-03-23 09:00:33 -0700 | [diff] [blame] | 784 | } // namespace |
| 785 | |
| 786 | #endif // SkLinearBitmapPipeline_sampler_DEFINED |