Matt Sarett | 909d379 | 2016-12-22 10:52:25 -0500 | [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 | #include "gm.h" |
| 9 | #include "Resources.h" |
| 10 | #include "SkCodec.h" |
| 11 | #include "SkColorSpace.h" |
| 12 | #include "SkColorSpace_Base.h" |
| 13 | #include "SkHalf.h" |
| 14 | #include "SkImage.h" |
Matt Sarett | 34855f9 | 2017-01-10 17:41:53 -0500 | [diff] [blame] | 15 | #include "SkPictureRecorder.h" |
Matt Sarett | 909d379 | 2016-12-22 10:52:25 -0500 | [diff] [blame] | 16 | |
| 17 | static void clamp_if_necessary(const SkImageInfo& info, void* pixels) { |
| 18 | if (kRGBA_F16_SkColorType != info.colorType()) { |
| 19 | return; |
| 20 | } |
| 21 | |
| 22 | for (int y = 0; y < info.height(); y++) { |
| 23 | for (int x = 0; x < info.width(); x++) { |
| 24 | uint64_t pixel = ((uint64_t*) pixels)[y * info.width() + x]; |
| 25 | |
| 26 | Sk4f rgba = SkHalfToFloat_finite_ftz(pixel); |
| 27 | if (kUnpremul_SkAlphaType == info.alphaType()) { |
| 28 | rgba = Sk4f::Max(0.0f, Sk4f::Min(rgba, 1.0f)); |
| 29 | } else { |
| 30 | SkASSERT(kPremul_SkAlphaType == info.alphaType()); |
| 31 | rgba = Sk4f::Max(0.0f, Sk4f::Min(rgba, rgba[3])); |
| 32 | } |
| 33 | SkFloatToHalf_finite_ftz(rgba).store(&pixel); |
| 34 | |
| 35 | ((uint64_t*) pixels)[y * info.width() + x] = pixel; |
| 36 | } |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | sk_sp<SkColorSpace> fix_for_colortype(SkColorSpace* colorSpace, SkColorType colorType) { |
| 41 | if (kRGBA_F16_SkColorType == colorType) { |
| 42 | return as_CSB(colorSpace)->makeLinearGamma(); |
| 43 | } |
| 44 | |
| 45 | return sk_ref_sp(colorSpace); |
| 46 | } |
| 47 | |
| 48 | static const int kWidth = 64; |
| 49 | static const int kHeight = 64; |
| 50 | |
| 51 | static sk_sp<SkImage> make_raster_image(SkColorType colorType, SkAlphaType alphaType) { |
| 52 | std::unique_ptr<SkStream> stream(GetResourceAsStream("google_chrome.ico")); |
| 53 | std::unique_ptr<SkCodec> codec(SkCodec::NewFromStream(stream.release())); |
| 54 | |
| 55 | SkBitmap bitmap; |
| 56 | SkImageInfo info = codec->getInfo().makeWH(kWidth, kHeight) |
| 57 | .makeColorType(colorType) |
| 58 | .makeAlphaType(alphaType) |
| 59 | .makeColorSpace(fix_for_colortype(codec->getInfo().colorSpace(), colorType)); |
| 60 | bitmap.allocPixels(info); |
| 61 | codec->getPixels(info, bitmap.getPixels(), bitmap.rowBytes()); |
| 62 | bitmap.setImmutable(); |
| 63 | return SkImage::MakeFromBitmap(bitmap); |
| 64 | } |
| 65 | |
Matt Sarett | 34855f9 | 2017-01-10 17:41:53 -0500 | [diff] [blame] | 66 | static sk_sp<SkImage> make_codec_image() { |
| 67 | sk_sp<SkData> encoded = GetResourceAsData("randPixels.png"); |
| 68 | return SkImage::MakeFromEncoded(encoded); |
| 69 | } |
| 70 | |
| 71 | static void draw_contents(SkCanvas* canvas) { |
| 72 | SkPaint paint; |
| 73 | paint.setStyle(SkPaint::kStroke_Style); |
| 74 | paint.setStrokeWidth(20); |
| 75 | paint.setColor(0xFF800000); |
| 76 | canvas->drawCircle(40, 40, 35, paint); |
| 77 | paint.setColor(0xFF008000); |
| 78 | canvas->drawCircle(50, 50, 35, paint); |
| 79 | paint.setColor(0xFF000080); |
| 80 | canvas->drawCircle(60, 60, 35, paint); |
| 81 | } |
| 82 | |
| 83 | static sk_sp<SkImage> make_tagged_picture_image() { |
| 84 | SkPictureRecorder recorder; |
| 85 | draw_contents(recorder.beginRecording(SkRect::MakeIWH(kWidth, kHeight))); |
| 86 | return SkImage::MakeFromPicture(recorder.finishRecordingAsPicture(), |
| 87 | SkISize::Make(kWidth, kHeight), nullptr, nullptr, |
| 88 | SkImage::BitDepth::kU8, |
| 89 | SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named)); |
| 90 | } |
| 91 | |
| 92 | static sk_sp<SkImage> make_untagged_picture_image() { |
| 93 | SkPictureRecorder recorder; |
| 94 | draw_contents(recorder.beginRecording(SkRect::MakeIWH(kWidth, kHeight))); |
| 95 | return SkImage::MakeFromPicture(recorder.finishRecordingAsPicture(), |
| 96 | SkISize::Make(kWidth, kHeight), nullptr, nullptr); |
| 97 | } |
| 98 | |
Matt Sarett | 909d379 | 2016-12-22 10:52:25 -0500 | [diff] [blame] | 99 | static sk_sp<SkColorSpace> make_srgb_transfer_fn(const SkColorSpacePrimaries& primaries) { |
Matt Sarett | 578f52c | 2016-12-22 13:14:30 -0500 | [diff] [blame] | 100 | SkMatrix44 toXYZD50(SkMatrix44::kUninitialized_Constructor); |
Matt Sarett | 909d379 | 2016-12-22 10:52:25 -0500 | [diff] [blame] | 101 | SkAssertResult(primaries.toXYZD50(&toXYZD50)); |
| 102 | return SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma, toXYZD50); |
| 103 | } |
| 104 | |
| 105 | static sk_sp<SkColorSpace> make_wide_gamut() { |
| 106 | // ProPhoto |
| 107 | SkColorSpacePrimaries primaries; |
| 108 | primaries.fRX = 0.7347f; |
| 109 | primaries.fRY = 0.2653f; |
| 110 | primaries.fGX = 0.1596f; |
| 111 | primaries.fGY = 0.8404f; |
| 112 | primaries.fBX = 0.0366f; |
| 113 | primaries.fBY = 0.0001f; |
| 114 | primaries.fWX = 0.34567f; |
| 115 | primaries.fWY = 0.35850f; |
| 116 | return make_srgb_transfer_fn(primaries); |
| 117 | } |
| 118 | |
| 119 | static sk_sp<SkColorSpace> make_small_gamut() { |
| 120 | SkColorSpacePrimaries primaries; |
| 121 | primaries.fRX = 0.50f; |
| 122 | primaries.fRY = 0.33f; |
| 123 | primaries.fGX = 0.30f; |
| 124 | primaries.fGY = 0.50f; |
| 125 | primaries.fBX = 0.25f; |
| 126 | primaries.fBY = 0.16f; |
| 127 | primaries.fWX = 0.3127f; |
| 128 | primaries.fWY = 0.3290f; |
| 129 | return make_srgb_transfer_fn(primaries); |
| 130 | } |
| 131 | |
| 132 | static void draw_image(SkCanvas* canvas, SkImage* image, SkColorType dstColorType, |
Matt Sarett | 34855f9 | 2017-01-10 17:41:53 -0500 | [diff] [blame] | 133 | SkAlphaType dstAlphaType, sk_sp<SkColorSpace> dstColorSpace, |
| 134 | SkImage::CachingHint hint) { |
Matt Sarett | 909d379 | 2016-12-22 10:52:25 -0500 | [diff] [blame] | 135 | size_t rowBytes = image->width() * SkColorTypeBytesPerPixel(dstColorType); |
| 136 | sk_sp<SkData> data = SkData::MakeUninitialized(rowBytes * image->height()); |
| 137 | dstColorSpace = fix_for_colortype(dstColorSpace.get(), dstColorType); |
| 138 | SkImageInfo dstInfo = SkImageInfo::Make(image->width(), image->height(), dstColorType, |
| 139 | dstAlphaType, dstColorSpace); |
Matt Sarett | 34855f9 | 2017-01-10 17:41:53 -0500 | [diff] [blame] | 140 | image->readPixels(dstInfo, data->writable_data(), rowBytes, 0, 0, hint); |
Matt Sarett | 909d379 | 2016-12-22 10:52:25 -0500 | [diff] [blame] | 141 | |
| 142 | // readPixels() does not always clamp F16. The drawing code expects pixels in the 0-1 range. |
| 143 | clamp_if_necessary(dstInfo, data->writable_data()); |
| 144 | |
| 145 | // Now that we have called readPixels(), dump the raw pixels into an srgb image. |
| 146 | sk_sp<SkColorSpace> srgb = fix_for_colortype( |
| 147 | SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named).get(), dstColorType); |
| 148 | sk_sp<SkImage> raw = SkImage::MakeRasterData(dstInfo.makeColorSpace(srgb), data, rowBytes); |
| 149 | canvas->drawImage(raw.get(), 0.0f, 0.0f, nullptr); |
| 150 | } |
| 151 | |
| 152 | class ReadPixelsGM : public skiagm::GM { |
| 153 | public: |
| 154 | ReadPixelsGM() {} |
| 155 | |
| 156 | protected: |
| 157 | SkString onShortName() override { |
| 158 | return SkString("readpixels"); |
| 159 | } |
| 160 | |
| 161 | SkISize onISize() override { |
| 162 | return SkISize::Make(6 * kWidth, 18 * kHeight); |
| 163 | } |
| 164 | |
| 165 | void onDraw(SkCanvas* canvas) override { |
| 166 | if (!canvas->imageInfo().colorSpace()) { |
| 167 | // This gm is only interesting in color correct modes. |
| 168 | return; |
| 169 | } |
| 170 | |
| 171 | const SkAlphaType alphaTypes[] = { |
| 172 | kUnpremul_SkAlphaType, |
| 173 | kPremul_SkAlphaType, |
| 174 | }; |
| 175 | const SkColorType colorTypes[] = { |
| 176 | kRGBA_8888_SkColorType, |
| 177 | kBGRA_8888_SkColorType, |
| 178 | kRGBA_F16_SkColorType, |
| 179 | }; |
| 180 | const sk_sp<SkColorSpace> colorSpaces[] = { |
| 181 | make_wide_gamut(), |
| 182 | SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named), |
| 183 | make_small_gamut(), |
| 184 | }; |
| 185 | |
| 186 | for (sk_sp<SkColorSpace> dstColorSpace : colorSpaces) { |
| 187 | for (SkColorType srcColorType : colorTypes) { |
| 188 | for (SkAlphaType srcAlphaType : alphaTypes) { |
| 189 | canvas->save(); |
| 190 | sk_sp<SkImage> image = make_raster_image(srcColorType, srcAlphaType); |
| 191 | for (SkColorType dstColorType : colorTypes) { |
| 192 | for (SkAlphaType dstAlphaType : alphaTypes) { |
| 193 | draw_image(canvas, image.get(), dstColorType, dstAlphaType, |
Matt Sarett | 34855f9 | 2017-01-10 17:41:53 -0500 | [diff] [blame] | 194 | dstColorSpace, SkImage::kAllow_CachingHint); |
Matt Sarett | 909d379 | 2016-12-22 10:52:25 -0500 | [diff] [blame] | 195 | canvas->translate((float) kWidth, 0.0f); |
| 196 | } |
| 197 | } |
| 198 | canvas->restore(); |
| 199 | canvas->translate(0.0f, (float) kHeight); |
| 200 | } |
| 201 | } |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | private: |
| 206 | typedef skiagm::GM INHERITED; |
| 207 | }; |
| 208 | DEF_GM( return new ReadPixelsGM; ) |
Matt Sarett | 34855f9 | 2017-01-10 17:41:53 -0500 | [diff] [blame] | 209 | |
| 210 | class ReadPixelsCodecGM : public skiagm::GM { |
| 211 | public: |
| 212 | ReadPixelsCodecGM() {} |
| 213 | |
| 214 | protected: |
| 215 | SkString onShortName() override { |
| 216 | return SkString("readpixelscodec"); |
| 217 | } |
| 218 | |
| 219 | SkISize onISize() override { |
| 220 | return SkISize::Make(3 * (kEncodedWidth + 1), 12 * (kEncodedHeight + 1)); |
| 221 | } |
| 222 | |
| 223 | void onDraw(SkCanvas* canvas) override { |
| 224 | if (!canvas->imageInfo().colorSpace()) { |
| 225 | // This gm is only interesting in color correct modes. |
| 226 | return; |
| 227 | } |
| 228 | |
| 229 | const SkAlphaType alphaTypes[] = { |
| 230 | kUnpremul_SkAlphaType, |
| 231 | kPremul_SkAlphaType, |
| 232 | }; |
| 233 | const SkColorType colorTypes[] = { |
| 234 | kRGBA_8888_SkColorType, |
| 235 | kBGRA_8888_SkColorType, |
| 236 | kRGBA_F16_SkColorType, |
| 237 | }; |
| 238 | const sk_sp<SkColorSpace> colorSpaces[] = { |
| 239 | make_wide_gamut(), |
| 240 | SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named), |
| 241 | make_small_gamut(), |
| 242 | }; |
| 243 | const SkImage::CachingHint hints[] = { |
| 244 | SkImage::kAllow_CachingHint, |
| 245 | SkImage::kDisallow_CachingHint, |
| 246 | }; |
| 247 | |
| 248 | sk_sp<SkImage> image = make_codec_image(); |
| 249 | for (sk_sp<SkColorSpace> dstColorSpace : colorSpaces) { |
| 250 | canvas->save(); |
| 251 | for (SkColorType dstColorType : colorTypes) { |
| 252 | for (SkAlphaType dstAlphaType : alphaTypes) { |
| 253 | for (SkImage::CachingHint hint : hints) { |
| 254 | draw_image(canvas, image.get(), dstColorType, dstAlphaType, dstColorSpace, |
| 255 | hint); |
| 256 | canvas->translate(0.0f, (float) kEncodedHeight + 1); |
| 257 | } |
| 258 | } |
| 259 | } |
| 260 | canvas->restore(); |
| 261 | canvas->translate((float) kEncodedWidth + 1, 0.0f); |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | private: |
| 266 | static const int kEncodedWidth = 8; |
| 267 | static const int kEncodedHeight = 8; |
| 268 | |
| 269 | typedef skiagm::GM INHERITED; |
| 270 | }; |
| 271 | DEF_GM( return new ReadPixelsCodecGM; ) |
| 272 | |
| 273 | class ReadPixelsPictureGM : public skiagm::GM { |
| 274 | public: |
| 275 | ReadPixelsPictureGM() {} |
| 276 | |
| 277 | protected: |
| 278 | SkString onShortName() override { |
| 279 | return SkString("readpixelspicture"); |
| 280 | } |
| 281 | |
| 282 | SkISize onISize() override { |
| 283 | return SkISize::Make(3 * kWidth, 12 * kHeight); |
| 284 | } |
| 285 | |
| 286 | void onDraw(SkCanvas* canvas) override { |
| 287 | if (!canvas->imageInfo().colorSpace()) { |
| 288 | // This gm is only interesting in color correct modes. |
| 289 | return; |
| 290 | } |
| 291 | |
| 292 | const sk_sp<SkImage> images[] = { |
| 293 | make_tagged_picture_image(), |
| 294 | make_untagged_picture_image(), |
| 295 | }; |
| 296 | const SkAlphaType alphaTypes[] = { |
| 297 | kUnpremul_SkAlphaType, |
| 298 | kPremul_SkAlphaType, |
| 299 | }; |
| 300 | const SkColorType colorTypes[] = { |
| 301 | kRGBA_8888_SkColorType, |
| 302 | kBGRA_8888_SkColorType, |
| 303 | kRGBA_F16_SkColorType, |
| 304 | }; |
| 305 | const sk_sp<SkColorSpace> colorSpaces[] = { |
| 306 | make_wide_gamut(), |
| 307 | SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named), |
| 308 | make_small_gamut(), |
| 309 | }; |
| 310 | const SkImage::CachingHint hints[] = { |
| 311 | SkImage::kAllow_CachingHint, |
| 312 | SkImage::kDisallow_CachingHint, |
| 313 | }; |
| 314 | |
| 315 | for (sk_sp<SkImage> image : images) { |
| 316 | for (sk_sp<SkColorSpace> dstColorSpace : colorSpaces) { |
| 317 | canvas->save(); |
| 318 | for (SkColorType dstColorType : colorTypes) { |
| 319 | for (SkAlphaType dstAlphaType : alphaTypes) { |
| 320 | for (SkImage::CachingHint hint : hints) { |
| 321 | draw_image(canvas, image.get(), dstColorType, dstAlphaType, |
| 322 | dstColorSpace, hint); |
| 323 | canvas->translate(0.0f, (float) kHeight); |
| 324 | } |
| 325 | } |
| 326 | } |
| 327 | canvas->restore(); |
| 328 | canvas->translate((float) kWidth, 0.0f); |
| 329 | } |
| 330 | } |
| 331 | } |
| 332 | |
| 333 | private: |
| 334 | |
| 335 | typedef skiagm::GM INHERITED; |
| 336 | }; |
| 337 | DEF_GM( return new ReadPixelsPictureGM; ) |