mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 1 | #include "DMSrcSink.h" |
| 2 | #include "SamplePipeControllers.h" |
| 3 | #include "SkCommonFlags.h" |
| 4 | #include "SkDocument.h" |
| 5 | #include "SkMultiPictureDraw.h" |
| 6 | #include "SkOSFile.h" |
mtklein | 441b10e | 2015-01-28 11:12:25 -0800 | [diff] [blame] | 7 | #include "SkPictureData.h" |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 8 | #include "SkPictureRecorder.h" |
| 9 | #include "SkRandom.h" |
scroggo | a1193e4 | 2015-01-21 12:09:53 -0800 | [diff] [blame] | 10 | #include "SkStream.h" |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 11 | |
| 12 | namespace DM { |
| 13 | |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 14 | GMSrc::GMSrc(skiagm::GMRegistry::Factory factory) : fFactory(factory) {} |
| 15 | |
| 16 | Error GMSrc::draw(SkCanvas* canvas) const { |
| 17 | SkAutoTDelete<skiagm::GM> gm(fFactory(NULL)); |
| 18 | canvas->concat(gm->getInitialTransform()); |
| 19 | gm->draw(canvas); |
| 20 | return ""; |
| 21 | } |
| 22 | |
| 23 | SkISize GMSrc::size() const { |
| 24 | SkAutoTDelete<skiagm::GM> gm(fFactory(NULL)); |
| 25 | return gm->getISize(); |
| 26 | } |
| 27 | |
| 28 | Name GMSrc::name() const { |
| 29 | SkAutoTDelete<skiagm::GM> gm(fFactory(NULL)); |
| 30 | return gm->getName(); |
| 31 | } |
| 32 | |
| 33 | /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/ |
| 34 | |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 35 | ImageSrc::ImageSrc(SkString path, int subsets) : fPath(path), fSubsets(subsets) {} |
| 36 | |
| 37 | Error ImageSrc::draw(SkCanvas* canvas) const { |
mtklein | 75d98fd | 2015-01-18 07:05:01 -0800 | [diff] [blame] | 38 | SkAutoTUnref<SkData> encoded(SkData::NewFromFileName(fPath.c_str())); |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 39 | if (!encoded) { |
| 40 | return SkStringPrintf("Couldn't read %s.", fPath.c_str()); |
| 41 | } |
| 42 | if (fSubsets == 0) { |
| 43 | // Decode the full image. |
| 44 | SkBitmap bitmap; |
| 45 | if (!SkImageDecoder::DecodeMemory(encoded->data(), encoded->size(), &bitmap)) { |
| 46 | return SkStringPrintf("Couldn't decode %s.", fPath.c_str()); |
| 47 | } |
mtklein | 75d98fd | 2015-01-18 07:05:01 -0800 | [diff] [blame] | 48 | encoded.reset((SkData*)NULL); // Might as well drop this when we're done with it. |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 49 | canvas->drawBitmap(bitmap, 0,0); |
| 50 | return ""; |
| 51 | } |
| 52 | // Decode random subsets. This is a little involved. |
scroggo | a1193e4 | 2015-01-21 12:09:53 -0800 | [diff] [blame] | 53 | SkAutoTDelete<SkMemoryStream> stream(new SkMemoryStream(encoded)); |
| 54 | SkAutoTDelete<SkImageDecoder> decoder(SkImageDecoder::Factory(stream.get())); |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 55 | if (!decoder) { |
| 56 | return SkStringPrintf("Can't find a good decoder for %s.", fPath.c_str()); |
| 57 | } |
scroggo | a1193e4 | 2015-01-21 12:09:53 -0800 | [diff] [blame] | 58 | stream->rewind(); |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 59 | int w,h; |
scroggo | a1193e4 | 2015-01-21 12:09:53 -0800 | [diff] [blame] | 60 | if (!decoder->buildTileIndex(stream.detach(), &w, &h) || w*h == 1) { |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 61 | return ""; // Not an error. Subset decoding is not always supported. |
| 62 | } |
| 63 | SkRandom rand; |
| 64 | for (int i = 0; i < fSubsets; i++) { |
| 65 | SkIRect rect; |
| 66 | do { |
| 67 | rect.fLeft = rand.nextULessThan(w); |
| 68 | rect.fTop = rand.nextULessThan(h); |
| 69 | rect.fRight = rand.nextULessThan(w); |
| 70 | rect.fBottom = rand.nextULessThan(h); |
| 71 | rect.sort(); |
| 72 | } while (rect.isEmpty()); |
| 73 | SkBitmap subset; |
| 74 | if (!decoder->decodeSubset(&subset, rect, kUnknown_SkColorType/*use best fit*/)) { |
| 75 | return SkStringPrintf("Could not decode subset %d.\n", i); |
| 76 | } |
| 77 | canvas->drawBitmap(subset, SkIntToScalar(rect.fLeft), SkIntToScalar(rect.fTop)); |
| 78 | } |
| 79 | return ""; |
| 80 | } |
| 81 | |
| 82 | SkISize ImageSrc::size() const { |
mtklein | 75d98fd | 2015-01-18 07:05:01 -0800 | [diff] [blame] | 83 | SkAutoTUnref<SkData> encoded(SkData::NewFromFileName(fPath.c_str())); |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 84 | SkBitmap bitmap; |
| 85 | if (!encoded || !SkImageDecoder::DecodeMemory(encoded->data(), |
| 86 | encoded->size(), |
| 87 | &bitmap, |
| 88 | kUnknown_SkColorType, |
| 89 | SkImageDecoder::kDecodeBounds_Mode)) { |
| 90 | return SkISize::Make(0,0); |
| 91 | } |
| 92 | return bitmap.dimensions(); |
| 93 | } |
| 94 | |
mtklein | 9264a95 | 2015-01-20 10:11:53 -0800 | [diff] [blame] | 95 | Name ImageSrc::name() const { |
| 96 | Name name = SkOSPath::Basename(fPath.c_str()); |
| 97 | if (fSubsets > 0) { |
| 98 | name.appendf("-%d-subsets", fSubsets); |
| 99 | } |
| 100 | return name; |
| 101 | } |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 102 | |
| 103 | /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/ |
| 104 | |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 105 | SKPSrc::SKPSrc(SkString path) : fPath(path) {} |
| 106 | |
| 107 | Error SKPSrc::draw(SkCanvas* canvas) const { |
scroggo | a1193e4 | 2015-01-21 12:09:53 -0800 | [diff] [blame] | 108 | SkAutoTDelete<SkStream> stream(SkStream::NewFromFile(fPath.c_str())); |
mtklein | 75d98fd | 2015-01-18 07:05:01 -0800 | [diff] [blame] | 109 | if (!stream) { |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 110 | return SkStringPrintf("Couldn't read %s.", fPath.c_str()); |
| 111 | } |
mtklein | 75d98fd | 2015-01-18 07:05:01 -0800 | [diff] [blame] | 112 | SkAutoTUnref<SkPicture> pic(SkPicture::CreateFromStream(stream)); |
| 113 | if (!pic) { |
| 114 | return SkStringPrintf("Couldn't decode %s as a picture.", fPath.c_str()); |
| 115 | } |
| 116 | stream.reset((SkStream*)NULL); // Might as well drop this when we're done with it. |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 117 | canvas->drawPicture(pic); |
| 118 | return ""; |
| 119 | } |
| 120 | |
| 121 | SkISize SKPSrc::size() const { |
mtklein | 441b10e | 2015-01-28 11:12:25 -0800 | [diff] [blame] | 122 | SkAutoTDelete<SkStream> stream(SkStream::NewFromFile(fPath.c_str())); |
| 123 | SkPictInfo info; |
| 124 | if (!stream || !SkPicture::InternalOnly_StreamIsSKP(stream, &info)) { |
| 125 | return SkISize::Make(0,0); |
| 126 | } |
| 127 | return info.fCullRect.roundOut().size(); |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 128 | } |
| 129 | |
| 130 | Name SKPSrc::name() const { return SkOSPath::Basename(fPath.c_str()); } |
| 131 | |
| 132 | /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/ |
| 133 | |
mtklein | 441b10e | 2015-01-28 11:12:25 -0800 | [diff] [blame] | 134 | static SkISize limit_raster_dimensions(const SkISize& size) { |
| 135 | // This fits within a typical maximum texture, and puts a reasonable 16MB cap on raster bitmaps. |
| 136 | return SkISize::Make(SkTMin(2048, size.width()), SkTMin(2048, size.height())); |
| 137 | } |
| 138 | |
mtklein | 82d2843 | 2015-01-15 12:46:02 -0800 | [diff] [blame] | 139 | GPUSink::GPUSink(GrContextFactory::GLContextType ct, |
| 140 | GrGLStandard api, |
| 141 | int samples, |
| 142 | bool dfText, |
| 143 | bool threaded) |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 144 | : fContextType(ct) |
| 145 | , fGpuAPI(api) |
| 146 | , fSampleCount(samples) |
mtklein | 82d2843 | 2015-01-15 12:46:02 -0800 | [diff] [blame] | 147 | , fUseDFText(dfText) |
| 148 | , fThreaded(threaded) {} |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 149 | |
| 150 | int GPUSink::enclave() const { |
mtklein | 55e88b2 | 2015-01-21 15:50:13 -0800 | [diff] [blame] | 151 | return fThreaded ? kAnyThread_Enclave : kGPU_Enclave; |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 152 | } |
| 153 | |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 154 | Error GPUSink::draw(const Src& src, SkBitmap* dst, SkWStream*) const { |
mtklein | 55e88b2 | 2015-01-21 15:50:13 -0800 | [diff] [blame] | 155 | GrContextFactory factory; |
mtklein | 441b10e | 2015-01-28 11:12:25 -0800 | [diff] [blame] | 156 | const SkISize size = limit_raster_dimensions(src.size()); |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 157 | const SkImageInfo info = |
| 158 | SkImageInfo::Make(size.width(), size.height(), kN32_SkColorType, kPremul_SkAlphaType); |
| 159 | SkAutoTUnref<SkSurface> surface( |
mtklein | 55e88b2 | 2015-01-21 15:50:13 -0800 | [diff] [blame] | 160 | NewGpuSurface(&factory, fContextType, fGpuAPI, info, fSampleCount, fUseDFText)); |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 161 | if (!surface) { |
| 162 | return "Could not create a surface."; |
| 163 | } |
| 164 | SkCanvas* canvas = surface->getCanvas(); |
| 165 | Error err = src.draw(canvas); |
| 166 | if (!err.isEmpty()) { |
| 167 | return err; |
| 168 | } |
| 169 | canvas->flush(); |
| 170 | dst->allocPixels(info); |
| 171 | canvas->readPixels(dst, 0,0); |
mtklein | 55e88b2 | 2015-01-21 15:50:13 -0800 | [diff] [blame] | 172 | if (FLAGS_abandonGpuContext) { |
| 173 | factory.abandonContexts(); |
| 174 | } |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 175 | return ""; |
| 176 | } |
| 177 | |
| 178 | /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/ |
| 179 | |
| 180 | PDFSink::PDFSink() {} |
| 181 | |
| 182 | Error PDFSink::draw(const Src& src, SkBitmap*, SkWStream* dst) const { |
| 183 | SkSize size; |
| 184 | size = src.size(); |
| 185 | SkAutoTUnref<SkDocument> doc(SkDocument::CreatePDF(dst)); |
| 186 | SkCanvas* canvas = doc->beginPage(size.width(), size.height()); |
| 187 | |
| 188 | Error err = src.draw(canvas); |
| 189 | if (!err.isEmpty()) { |
| 190 | return err; |
| 191 | } |
| 192 | canvas->flush(); |
| 193 | doc->endPage(); |
| 194 | doc->close(); |
| 195 | return ""; |
| 196 | } |
| 197 | |
| 198 | /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/ |
| 199 | |
mtklein | 9c3f17d | 2015-01-28 11:35:18 -0800 | [diff] [blame^] | 200 | SKPSink::SKPSink() {} |
| 201 | |
| 202 | Error SKPSink::draw(const Src& src, SkBitmap*, SkWStream* dst) const { |
| 203 | SkSize size; |
| 204 | size = src.size(); |
| 205 | SkPictureRecorder recorder; |
| 206 | Error err = src.draw(recorder.beginRecording(size.width(), size.height())); |
| 207 | if (!err.isEmpty()) { |
| 208 | return err; |
| 209 | } |
| 210 | SkAutoTUnref<SkPicture> pic(recorder.endRecording()); |
| 211 | pic->serialize(dst); |
| 212 | return ""; |
| 213 | } |
| 214 | |
| 215 | /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/ |
| 216 | |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 217 | RasterSink::RasterSink(SkColorType colorType) : fColorType(colorType) {} |
| 218 | |
| 219 | Error RasterSink::draw(const Src& src, SkBitmap* dst, SkWStream*) const { |
mtklein | 441b10e | 2015-01-28 11:12:25 -0800 | [diff] [blame] | 220 | const SkISize size = limit_raster_dimensions(src.size()); |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 221 | // If there's an appropriate alpha type for this color type, use it, otherwise use premul. |
| 222 | SkAlphaType alphaType = kPremul_SkAlphaType; |
| 223 | (void)SkColorTypeValidateAlphaType(fColorType, alphaType, &alphaType); |
| 224 | |
| 225 | dst->allocPixels(SkImageInfo::Make(size.width(), size.height(), fColorType, alphaType)); |
| 226 | dst->eraseColor(SK_ColorTRANSPARENT); |
| 227 | SkCanvas canvas(*dst); |
| 228 | return src.draw(&canvas); |
| 229 | } |
| 230 | |
| 231 | /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/ |
| 232 | |
| 233 | ViaMatrix::ViaMatrix(SkMatrix matrix, Sink* sink) : fMatrix(matrix), fSink(sink) {} |
| 234 | |
| 235 | Error ViaMatrix::draw(const Src& src, SkBitmap* bitmap, SkWStream* stream) const { |
| 236 | // We turn our arguments into a Src, then draw that Src into our Sink to fill bitmap or stream. |
| 237 | struct ProxySrc : public Src { |
| 238 | const Src& fSrc; |
| 239 | SkMatrix fMatrix; |
| 240 | ProxySrc(const Src& src, SkMatrix matrix) : fSrc(src), fMatrix(matrix) {} |
| 241 | |
| 242 | Error draw(SkCanvas* canvas) const SK_OVERRIDE { |
| 243 | canvas->concat(fMatrix); |
| 244 | return fSrc.draw(canvas); |
| 245 | } |
| 246 | SkISize size() const SK_OVERRIDE { return fSrc.size(); } |
| 247 | Name name() const SK_OVERRIDE { sk_throw(); return ""; } // No one should be calling this. |
| 248 | } proxy(src, fMatrix); |
| 249 | return fSink->draw(proxy, bitmap, stream); |
| 250 | } |
| 251 | |
| 252 | /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/ |
| 253 | |
mtklein | 7edca21 | 2015-01-21 13:18:51 -0800 | [diff] [blame] | 254 | ViaPipe::ViaPipe(Sink* sink) : fSink(sink) {} |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 255 | |
| 256 | Error ViaPipe::draw(const Src& src, SkBitmap* bitmap, SkWStream* stream) const { |
mtklein | 7edca21 | 2015-01-21 13:18:51 -0800 | [diff] [blame] | 257 | // We turn ourselves into another Src that draws our argument into bitmap/stream via pipe. |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 258 | struct ProxySrc : public Src { |
| 259 | const Src& fSrc; |
mtklein | 7edca21 | 2015-01-21 13:18:51 -0800 | [diff] [blame] | 260 | ProxySrc(const Src& src) : fSrc(src) {} |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 261 | |
| 262 | Error draw(SkCanvas* canvas) const SK_OVERRIDE { |
| 263 | SkISize size = this->size(); |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 264 | PipeController controller(canvas, &SkImageDecoder::DecodeMemory); |
| 265 | SkGPipeWriter pipe; |
mtklein | 7edca21 | 2015-01-21 13:18:51 -0800 | [diff] [blame] | 266 | const uint32_t kFlags = 0; // We mirror SkDeferredCanvas, which doesn't use any flags. |
| 267 | return fSrc.draw(pipe.startRecording(&controller, kFlags, size.width(), size.height())); |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 268 | } |
| 269 | SkISize size() const SK_OVERRIDE { return fSrc.size(); } |
| 270 | Name name() const SK_OVERRIDE { sk_throw(); return ""; } // No one should be calling this. |
mtklein | 7edca21 | 2015-01-21 13:18:51 -0800 | [diff] [blame] | 271 | } proxy(src); |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 272 | return fSink->draw(proxy, bitmap, stream); |
| 273 | } |
| 274 | |
| 275 | /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/ |
| 276 | |
| 277 | ViaSerialization::ViaSerialization(Sink* sink) : fSink(sink) {} |
| 278 | |
| 279 | Error ViaSerialization::draw(const Src& src, SkBitmap* bitmap, SkWStream* stream) const { |
| 280 | // Record our Src into a picture. |
| 281 | SkSize size; |
| 282 | size = src.size(); |
| 283 | SkPictureRecorder recorder; |
| 284 | Error err = src.draw(recorder.beginRecording(size.width(), size.height())); |
| 285 | if (!err.isEmpty()) { |
| 286 | return err; |
| 287 | } |
| 288 | SkAutoTUnref<SkPicture> pic(recorder.endRecording()); |
| 289 | |
| 290 | // Serialize it and then deserialize it. |
| 291 | SkDynamicMemoryWStream wStream; |
| 292 | pic->serialize(&wStream); |
scroggo | a1193e4 | 2015-01-21 12:09:53 -0800 | [diff] [blame] | 293 | SkAutoTDelete<SkStream> rStream(wStream.detachAsStream()); |
mtklein | 748ca3b | 2015-01-15 10:56:12 -0800 | [diff] [blame] | 294 | SkAutoTUnref<SkPicture> deserialized(SkPicture::CreateFromStream(rStream)); |
| 295 | |
| 296 | // Turn that deserialized picture into a Src, draw it into our Sink to fill bitmap or stream. |
| 297 | struct ProxySrc : public Src { |
| 298 | const SkPicture* fPic; |
| 299 | const SkISize fSize; |
| 300 | ProxySrc(const SkPicture* pic, SkISize size) : fPic(pic), fSize(size) {} |
| 301 | |
| 302 | Error draw(SkCanvas* canvas) const SK_OVERRIDE { |
| 303 | canvas->drawPicture(fPic); |
| 304 | return ""; |
| 305 | } |
| 306 | SkISize size() const SK_OVERRIDE { return fSize; } |
| 307 | Name name() const SK_OVERRIDE { sk_throw(); return ""; } // No one should be calling this. |
| 308 | } proxy(deserialized, src.size()); |
| 309 | return fSink->draw(proxy, bitmap, stream); |
| 310 | } |
| 311 | |
| 312 | /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/ |
| 313 | |
| 314 | ViaTiles::ViaTiles(int w, int h, SkBBHFactory* factory, Sink* sink) |
| 315 | : fW(w) |
| 316 | , fH(h) |
| 317 | , fFactory(factory) |
| 318 | , fSink(sink) {} |
| 319 | |
| 320 | Error ViaTiles::draw(const Src& src, SkBitmap* bitmap, SkWStream* stream) const { |
| 321 | // Record our Src into a picture. |
| 322 | SkSize size; |
| 323 | size = src.size(); |
| 324 | SkPictureRecorder recorder; |
| 325 | Error err = src.draw(recorder.beginRecording(size.width(), size.height(), fFactory.get())); |
| 326 | if (!err.isEmpty()) { |
| 327 | return err; |
| 328 | } |
| 329 | SkAutoTUnref<SkPicture> pic(recorder.endRecording()); |
| 330 | |
| 331 | // Turn that picture into a Src that draws into our Sink via tiles + MPD. |
| 332 | struct ProxySrc : public Src { |
| 333 | const int fW, fH; |
| 334 | const SkPicture* fPic; |
| 335 | const SkISize fSize; |
| 336 | ProxySrc(int w, int h, const SkPicture* pic, SkISize size) |
| 337 | : fW(w), fH(h), fPic(pic), fSize(size) {} |
| 338 | |
| 339 | Error draw(SkCanvas* canvas) const SK_OVERRIDE { |
| 340 | const int xTiles = (fSize.width() + fW - 1) / fW, |
| 341 | yTiles = (fSize.height() + fH - 1) / fH; |
| 342 | SkMultiPictureDraw mpd(xTiles*yTiles); |
| 343 | SkTDArray<SkSurface*> surfaces; |
| 344 | surfaces.setReserve(xTiles*yTiles); |
| 345 | |
| 346 | SkImageInfo info = canvas->imageInfo().makeWH(fW, fH); |
| 347 | for (int j = 0; j < yTiles; j++) { |
| 348 | for (int i = 0; i < xTiles; i++) { |
| 349 | // This lets our ultimate Sink determine the best kind of surface. |
| 350 | // E.g., if it's a GpuSink, the surfaces and images are textures. |
| 351 | SkSurface* s = canvas->newSurface(info); |
| 352 | if (!s) { |
| 353 | s = SkSurface::NewRaster(info); // Some canvases can't create surfaces. |
| 354 | } |
| 355 | surfaces.push(s); |
| 356 | SkCanvas* c = s->getCanvas(); |
| 357 | c->translate(SkIntToScalar(-i * fW), |
| 358 | SkIntToScalar(-j * fH)); // Line up the canvas with this tile. |
| 359 | mpd.add(c, fPic); |
| 360 | } |
| 361 | } |
| 362 | mpd.draw(); |
| 363 | for (int j = 0; j < yTiles; j++) { |
| 364 | for (int i = 0; i < xTiles; i++) { |
| 365 | SkAutoTUnref<SkImage> image(surfaces[i+xTiles*j]->newImageSnapshot()); |
| 366 | canvas->drawImage(image, SkIntToScalar(i*fW), SkIntToScalar(j*fH)); |
| 367 | } |
| 368 | } |
| 369 | surfaces.unrefAll(); |
| 370 | return ""; |
| 371 | } |
| 372 | SkISize size() const SK_OVERRIDE { return fSize; } |
| 373 | Name name() const SK_OVERRIDE { sk_throw(); return ""; } // No one should be calling this. |
| 374 | } proxy(fW, fH, pic, src.size()); |
| 375 | return fSink->draw(proxy, bitmap, stream); |
| 376 | } |
| 377 | |
| 378 | } // namespace DM |