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      1 /*
      2  * Copyright 2011 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 "SampleApp.h"
      9 
     10 #include "OverView.h"
     11 #include "Resources.h"
     12 #include "SampleCode.h"
     13 #include "SkAnimTimer.h"
     14 #include "SkCanvas.h"
     15 #include "SkColorSpace_XYZ.h"
     16 #include "SkCommandLineFlags.h"
     17 #include "SkCommonFlagsPathRenderer.h"
     18 #include "SkData.h"
     19 #include "SkDocument.h"
     20 #include "SkGraphics.h"
     21 #include "SkOSFile.h"
     22 #include "SkOSPath.h"
     23 #include "SkPaint.h"
     24 #include "SkPaintFilterCanvas.h"
     25 #include "SkPicture.h"
     26 #include "SkPictureRecorder.h"
     27 #include "SkPM4fPriv.h"
     28 #include "SkStream.h"
     29 #include "SkSurface.h"
     30 #include "SkTemplates.h"
     31 #include "SkTSort.h"
     32 #include "SkTime.h"
     33 #include "SkTypeface.h"
     34 #include "SkWindow.h"
     35 #include "sk_tool_utils.h"
     36 #include "SkScan.h"
     37 #include "SkClipOpPriv.h"
     38 
     39 #include "SkReadBuffer.h"
     40 #include "SkStream.h"
     41 
     42 #if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
     43 #include "SkCGUtils.h"
     44 #endif
     45 
     46 #define PICTURE_MEANS_PIPE  false
     47 #define SERIALIZE_PICTURE   true
     48 
     49 #if SK_SUPPORT_GPU
     50 #   include "gl/GrGLInterface.h"
     51 #   include "gl/GrGLUtil.h"
     52 #   include "GrContext.h"
     53 #   include "SkGr.h"
     54 #   if SK_ANGLE
     55 #       include "gl/angle/GLTestContext_angle.h"
     56 #   endif
     57 #else
     58 class GrContext;
     59 #endif
     60 
     61 enum OutputColorSpace {
     62     kLegacy_OutputColorSpace,
     63     kSRGB_OutputColorSpace,
     64     kNarrow_OutputColorSpace,
     65     kMonitor_OutputColorSpace,
     66 };
     67 
     68 const struct {
     69     SkColorType         fColorType;
     70     OutputColorSpace    fColorSpace;
     71     const char*         fName;
     72 } gConfig[] = {
     73     { kN32_SkColorType,      kLegacy_OutputColorSpace,  "L32" },
     74     { kN32_SkColorType,      kSRGB_OutputColorSpace,    "S32" },
     75     { kRGBA_F16_SkColorType, kSRGB_OutputColorSpace,    "F16" },
     76     { kRGBA_F16_SkColorType, kNarrow_OutputColorSpace,  "F16 Narrow" },
     77     { kRGBA_F16_SkColorType, kMonitor_OutputColorSpace, "F16 Device" },
     78 };
     79 
     80 // Should be 3x + 1
     81 #define kMaxFatBitsScale    28
     82 
     83 extern SampleView* CreateSamplePictFileView(const char filename[]);
     84 
     85 class PictFileFactory : public SkViewFactory {
     86     SkString fFilename;
     87 public:
     88     PictFileFactory(const SkString& filename) : fFilename(filename) {}
     89     SkView* operator() () const override {
     90         return CreateSamplePictFileView(fFilename.c_str());
     91     }
     92 };
     93 
     94 extern SampleView* CreateSamplePathFinderView(const char filename[]);
     95 
     96 class PathFinderFactory : public SkViewFactory {
     97     SkString fFilename;
     98 public:
     99     PathFinderFactory(const SkString& filename) : fFilename(filename) {}
    100     SkView* operator() () const override {
    101         return CreateSamplePathFinderView(fFilename.c_str());
    102     }
    103 };
    104 
    105 extern SampleView* CreateSampleSVGFileView(const SkString& filename);
    106 
    107 class SVGFileFactory : public SkViewFactory {
    108     SkString fFilename;
    109 public:
    110     SVGFileFactory(const SkString& filename) : fFilename(filename) {}
    111     SkView* operator() () const override {
    112         return CreateSampleSVGFileView(fFilename);
    113     }
    114 };
    115 
    116 #ifdef SAMPLE_PDF_FILE_VIEWER
    117 extern SampleView* CreateSamplePdfFileViewer(const char filename[]);
    118 
    119 class PdfFileViewerFactory : public SkViewFactory {
    120     SkString fFilename;
    121 public:
    122     PdfFileViewerFactory(const SkString& filename) : fFilename(filename) {}
    123     SkView* operator() () const override {
    124         return CreateSamplePdfFileViewer(fFilename.c_str());
    125     }
    126 };
    127 #endif  // SAMPLE_PDF_FILE_VIEWER
    128 
    129 #if SK_ANGLE
    130 //#define DEFAULT_TO_ANGLE 1
    131 #else
    132 #define DEFAULT_TO_GPU 0 // if 1 default rendering is on GPU
    133 #endif
    134 
    135 #define ANIMATING_EVENTTYPE "nextSample"
    136 #define ANIMATING_DELAY     250
    137 
    138 #ifdef SK_DEBUG
    139     #define FPS_REPEAT_MULTIPLIER   1
    140 #else
    141     #define FPS_REPEAT_MULTIPLIER   10
    142 #endif
    143 #define FPS_REPEAT_COUNT    (10 * FPS_REPEAT_MULTIPLIER)
    144 
    145 static SampleWindow* gSampleWindow;
    146 
    147 static bool gShowGMBounds;
    148 
    149 static void post_event_to_sink(SkEvent* evt, SkEventSink* sink) {
    150     evt->setTargetID(sink->getSinkID())->post();
    151 }
    152 
    153 static SkAnimTimer gAnimTimer;
    154 
    155 ///////////////////////////////////////////////////////////////////////////////
    156 
    157 static const char* skip_until(const char* str, const char* skip) {
    158     if (!str) {
    159         return nullptr;
    160     }
    161     return strstr(str, skip);
    162 }
    163 
    164 static const char* skip_past(const char* str, const char* skip) {
    165     const char* found = skip_until(str, skip);
    166     if (!found) {
    167         return nullptr;
    168     }
    169     return found + strlen(skip);
    170 }
    171 
    172 static const char* gPrefFileName = "sampleapp_prefs.txt";
    173 
    174 static bool readTitleFromPrefs(SkString* title) {
    175     SkFILEStream stream(gPrefFileName);
    176     if (!stream.isValid()) {
    177         return false;
    178     }
    179 
    180     size_t len = stream.getLength();
    181     SkString data(len);
    182     stream.read(data.writable_str(), len);
    183     const char* s = data.c_str();
    184 
    185     s = skip_past(s, "curr-slide-title");
    186     s = skip_past(s, "=");
    187     s = skip_past(s, "\"");
    188     const char* stop = skip_until(s, "\"");
    189     if (stop > s) {
    190         title->set(s, stop - s);
    191         return true;
    192     }
    193     return false;
    194 }
    195 
    196 static void writeTitleToPrefs(const char* title) {
    197     SkFILEWStream stream(gPrefFileName);
    198     SkString data;
    199     data.printf("curr-slide-title = \"%s\"\n", title);
    200     stream.write(data.c_str(), data.size());
    201 }
    202 
    203 ///////////////////////////////////////////////////////////////////////////////
    204 
    205 class SampleWindow::DefaultDeviceManager : public SampleWindow::DeviceManager {
    206 public:
    207 
    208     DefaultDeviceManager() {
    209 #if SK_SUPPORT_GPU
    210         fCurContext = nullptr;
    211         fCurIntf = nullptr;
    212         fMSAASampleCount = 0;
    213         fDeepColor = false;
    214         fActualColorBits = 0;
    215 #endif
    216         fBackend = kNone_BackEndType;
    217     }
    218 
    219     ~DefaultDeviceManager() override {
    220 #if SK_SUPPORT_GPU
    221         SkSafeUnref(fCurContext);
    222         SkSafeUnref(fCurIntf);
    223 #endif
    224     }
    225 
    226     void setUpBackend(SampleWindow* win, const BackendOptions& backendOptions) override {
    227         SkASSERT(kNone_BackEndType == fBackend);
    228 
    229         fBackend = kNone_BackEndType;
    230 
    231 #if SK_SUPPORT_GPU
    232         switch (win->getDeviceType()) {
    233             case kRaster_DeviceType:    // fallthrough
    234             case kGPU_DeviceType:
    235                 // all these guys use the native backend
    236                 fBackend = kNativeGL_BackEndType;
    237                 break;
    238 #if SK_ANGLE
    239             case kANGLE_DeviceType:
    240                 // ANGLE is really the only odd man out
    241                 fBackend = kANGLE_BackEndType;
    242                 break;
    243 #endif // SK_ANGLE
    244             default:
    245                 SkASSERT(false);
    246                 break;
    247         }
    248         AttachmentInfo attachmentInfo;
    249         bool result = win->attach(fBackend, backendOptions.fMSAASampleCount,
    250                                   backendOptions.fDeepColor, &attachmentInfo);
    251         if (!result) {
    252             SkDebugf("Failed to initialize GL");
    253             return;
    254         }
    255         fMSAASampleCount = backendOptions.fMSAASampleCount;
    256         fDeepColor = backendOptions.fDeepColor;
    257         // Assume that we have at least 24-bit output, for backends that don't supply this data
    258         fActualColorBits = SkTMax(attachmentInfo.fColorBits, 24);
    259 
    260         SkASSERT(nullptr == fCurIntf);
    261         switch (win->getDeviceType()) {
    262             case kRaster_DeviceType:    // fallthrough
    263             case kGPU_DeviceType:
    264                 // all these guys use the native interface
    265                 fCurIntf = GrGLCreateNativeInterface();
    266                 break;
    267 #if SK_ANGLE
    268             case kANGLE_DeviceType:
    269                 fCurIntf = sk_gpu_test::CreateANGLEGLInterface();
    270                 break;
    271 #endif // SK_ANGLE
    272             default:
    273                 SkASSERT(false);
    274                 break;
    275         }
    276 
    277         SkASSERT(nullptr == fCurContext);
    278         fCurContext = GrContext::Create(kOpenGL_GrBackend, (GrBackendContext) fCurIntf,
    279                                         backendOptions.fGrContextOptions);
    280 
    281         if (nullptr == fCurContext || nullptr == fCurIntf) {
    282             // We need some context and interface to see results
    283             SkSafeUnref(fCurContext);
    284             SkSafeUnref(fCurIntf);
    285             fCurContext = nullptr;
    286             fCurIntf = nullptr;
    287             SkDebugf("Failed to setup 3D");
    288 
    289             win->release();
    290         }
    291 #endif // SK_SUPPORT_GPU
    292         // call windowSizeChanged to create the gpu-backed Surface
    293         this->windowSizeChanged(win);
    294     }
    295 
    296     void tearDownBackend(SampleWindow *win) override {
    297 #if SK_SUPPORT_GPU
    298         if (fCurContext) {
    299             // in case we have outstanding refs to this guy (lua?)
    300             fCurContext->abandonContext();
    301             fCurContext->unref();
    302             fCurContext = nullptr;
    303         }
    304 
    305         SkSafeUnref(fCurIntf);
    306         fCurIntf = nullptr;
    307 
    308         fGpuSurface = nullptr;
    309 #endif
    310         win->release();
    311         fBackend = kNone_BackEndType;
    312     }
    313 
    314     sk_sp<SkSurface> makeSurface(SampleWindow::DeviceType dType, SampleWindow* win) override {
    315 #if SK_SUPPORT_GPU
    316         if (IsGpuDeviceType(dType) && fCurContext) {
    317             SkSurfaceProps props(win->getSurfaceProps());
    318             if (kRGBA_F16_SkColorType == win->info().colorType() || fActualColorBits > 24) {
    319                 // If we're rendering to F16, we need an off-screen surface - the current render
    320                 // target is most likely the wrong format.
    321                 //
    322                 // If we're using a deep (10-bit or higher) surface, we probably need an off-screen
    323                 // surface. 10-bit, in particular, has strange gamma behavior.
    324                 return SkSurface::MakeRenderTarget(fCurContext, SkBudgeted::kNo, win->info(),
    325                                                    fMSAASampleCount, &props);
    326             } else {
    327                 return fGpuSurface;
    328             }
    329         }
    330 #endif
    331         return nullptr;
    332     }
    333 
    334     void publishCanvas(SampleWindow::DeviceType dType,
    335                        SkCanvas* renderingCanvas, SampleWindow* win) override {
    336 #if SK_SUPPORT_GPU
    337         if (!IsGpuDeviceType(dType) ||
    338             kRGBA_F16_SkColorType == win->info().colorType() ||
    339             fActualColorBits > 24) {
    340             // We made/have an off-screen surface. Extract the pixels exactly as we rendered them:
    341             SkImageInfo info = win->info();
    342             size_t rowBytes = info.minRowBytes();
    343             size_t size = info.getSafeSize(rowBytes);
    344             auto data = SkData::MakeUninitialized(size);
    345             SkASSERT(data);
    346 
    347             if (!renderingCanvas->readPixels(info, data->writable_data(), rowBytes, 0, 0)) {
    348                 SkDEBUGFAIL("Failed to read canvas pixels");
    349                 return;
    350             }
    351 
    352             // Now, re-interpret those pixels as sRGB, so they won't be color converted when we
    353             // draw then to FBO0. This ensures that if we rendered in any strange gamut, we'll see
    354             // the "correct" output (because we generated the pixel values we wanted in the
    355             // offscreen canvas).
    356             auto colorSpace = kRGBA_F16_SkColorType == info.colorType()
    357                 ? SkColorSpace::MakeSRGBLinear()
    358                 : SkColorSpace::MakeSRGB();
    359             auto offscreenImage = SkImage::MakeRasterData(info.makeColorSpace(colorSpace), data,
    360                                                           rowBytes);
    361 
    362             SkCanvas* gpuCanvas = fGpuSurface->getCanvas();
    363 
    364             // With ten-bit output, we need to manually apply the gamma of the output device
    365             // (unless we're in non-gamma correct mode, in which case our data is already
    366             // fake-sRGB, like we're expected to put in the 10-bit buffer):
    367             bool doGamma = (fActualColorBits == 30) && win->info().colorSpace();
    368 
    369             SkPaint gammaPaint;
    370             gammaPaint.setBlendMode(SkBlendMode::kSrc);
    371             if (doGamma) {
    372                 gammaPaint.setColorFilter(sk_tool_utils::MakeLinearToSRGBColorFilter());
    373             }
    374 
    375             gpuCanvas->drawImage(offscreenImage, 0, 0, &gammaPaint);
    376         }
    377 
    378         fGpuSurface->prepareForExternalIO();
    379 #endif
    380 
    381         win->present();
    382     }
    383 
    384     void windowSizeChanged(SampleWindow* win) override {
    385 #if SK_SUPPORT_GPU
    386         if (fCurContext) {
    387             AttachmentInfo attachmentInfo;
    388             win->attach(fBackend, fMSAASampleCount, fDeepColor, &attachmentInfo);
    389             fActualColorBits = SkTMax(attachmentInfo.fColorBits, 24);
    390             fGpuSurface = win->makeGpuBackedSurface(attachmentInfo, fCurIntf, fCurContext);
    391         }
    392 #endif
    393     }
    394 
    395     GrContext* getGrContext() override {
    396 #if SK_SUPPORT_GPU
    397         return fCurContext;
    398 #else
    399         return nullptr;
    400 #endif
    401     }
    402 
    403     int numColorSamples() const override {
    404 #if SK_SUPPORT_GPU
    405         return fMSAASampleCount;
    406 #else
    407         return 0;
    408 #endif
    409     }
    410 
    411     int getColorBits() override {
    412 #if SK_SUPPORT_GPU
    413         return fActualColorBits;
    414 #else
    415         return 24;
    416 #endif
    417     }
    418 
    419 private:
    420 
    421 #if SK_SUPPORT_GPU
    422     GrContext*              fCurContext;
    423     const GrGLInterface*    fCurIntf;
    424     sk_sp<SkSurface>        fGpuSurface;
    425     int fMSAASampleCount;
    426     bool fDeepColor;
    427     int fActualColorBits;
    428 #endif
    429 
    430     SkOSWindow::SkBackEndTypes fBackend;
    431 
    432     typedef SampleWindow::DeviceManager INHERITED;
    433 };
    434 
    435 ///////////////
    436 static const char view_inval_msg[] = "view-inval-msg";
    437 
    438 void SampleWindow::postInvalDelay() {
    439     (new SkEvent(view_inval_msg, this->getSinkID()))->postDelay(1);
    440 }
    441 
    442 static bool isInvalEvent(const SkEvent& evt) {
    443     return evt.isType(view_inval_msg);
    444 }
    445 //////////////////
    446 
    447 #include "GMSampleView.h"
    448 
    449 class AutoUnrefArray {
    450 public:
    451     AutoUnrefArray() {}
    452     ~AutoUnrefArray() {
    453         int count = fObjs.count();
    454         for (int i = 0; i < count; ++i) {
    455             fObjs[i]->unref();
    456         }
    457     }
    458     SkRefCnt*& push_back() { return *fObjs.append(); }
    459 
    460 private:
    461     SkTDArray<SkRefCnt*> fObjs;
    462 };
    463 
    464 // registers GMs as Samples
    465 // This can't be performed during static initialization because it could be
    466 // run before GMRegistry has been fully built.
    467 static void SkGMRegistyToSampleRegistry() {
    468     static bool gOnce;
    469     static AutoUnrefArray fRegisters;
    470 
    471     if (!gOnce) {
    472         const skiagm::GMRegistry* gmreg = skiagm::GMRegistry::Head();
    473         while (gmreg) {
    474             fRegisters.push_back() = new SkViewRegister(gmreg->factory());
    475             gmreg = gmreg->next();
    476         }
    477         gOnce = true;
    478     }
    479 }
    480 
    481 //////////////////////////////////////////////////////////////////////////////
    482 
    483 enum FlipAxisEnum {
    484     kFlipAxis_X = (1 << 0),
    485     kFlipAxis_Y = (1 << 1)
    486 };
    487 
    488 #include "SkDrawFilter.h"
    489 
    490 struct HintingState {
    491     SkPaint::Hinting hinting;
    492     const char* name;
    493     const char* label;
    494 };
    495 static HintingState gHintingStates[] = {
    496     {SkPaint::kNo_Hinting, "Mixed", nullptr },
    497     {SkPaint::kNo_Hinting, "None", "H0 " },
    498     {SkPaint::kSlight_Hinting, "Slight", "Hs " },
    499     {SkPaint::kNormal_Hinting, "Normal", "Hn " },
    500     {SkPaint::kFull_Hinting, "Full", "Hf " },
    501 };
    502 
    503 struct PixelGeometryState {
    504     SkPixelGeometry pixelGeometry;
    505     const char* name;
    506     const char* label;
    507 };
    508 static PixelGeometryState gPixelGeometryStates[] = {
    509     {SkPixelGeometry::kUnknown_SkPixelGeometry, "Mixed", nullptr },
    510     {SkPixelGeometry::kUnknown_SkPixelGeometry, "Flat",  "{Flat} "  },
    511     {SkPixelGeometry::kRGB_H_SkPixelGeometry,   "RGB H", "{RGB H} " },
    512     {SkPixelGeometry::kBGR_H_SkPixelGeometry,   "BGR H", "{BGR H} " },
    513     {SkPixelGeometry::kRGB_V_SkPixelGeometry,   "RGB_V", "{RGB V} " },
    514     {SkPixelGeometry::kBGR_V_SkPixelGeometry,   "BGR_V", "{BGR V} " },
    515 };
    516 
    517 struct FilterQualityState {
    518     SkFilterQuality fQuality;
    519     const char*     fName;
    520     const char*     fLabel;
    521 };
    522 static FilterQualityState gFilterQualityStates[] = {
    523     { kNone_SkFilterQuality,   "Mixed",    nullptr    },
    524     { kNone_SkFilterQuality,   "None",     "F0 "   },
    525     { kLow_SkFilterQuality,    "Low",      "F1 "   },
    526     { kMedium_SkFilterQuality, "Medium",   "F2 "   },
    527     { kHigh_SkFilterQuality,   "High",     "F3 "   },
    528 };
    529 
    530 class FlagsFilterCanvas : public SkPaintFilterCanvas {
    531 public:
    532     FlagsFilterCanvas(SkCanvas* canvas, SkOSMenu::TriState lcd, SkOSMenu::TriState aa,
    533                       SkOSMenu::TriState subpixel, int hinting, int filterQuality)
    534         : INHERITED(canvas)
    535         , fLCDState(lcd)
    536         , fAAState(aa)
    537         , fSubpixelState(subpixel)
    538         , fHintingState(hinting)
    539         , fFilterQualityIndex(filterQuality) {
    540         SkASSERT((unsigned)filterQuality < SK_ARRAY_COUNT(gFilterQualityStates));
    541     }
    542 
    543 protected:
    544     bool onFilter(SkTCopyOnFirstWrite<SkPaint>* paint, Type t) const override {
    545         if (!*paint) {
    546             return true;
    547         }
    548 
    549         if (kText_Type == t && SkOSMenu::kMixedState != fLCDState) {
    550             paint->writable()->setLCDRenderText(SkOSMenu::kOnState == fLCDState);
    551         }
    552         if (SkOSMenu::kMixedState != fAAState) {
    553             paint->writable()->setAntiAlias(SkOSMenu::kOnState == fAAState);
    554         }
    555         if (0 != fFilterQualityIndex) {
    556             paint->writable()->setFilterQuality(gFilterQualityStates[fFilterQualityIndex].fQuality);
    557         }
    558         if (SkOSMenu::kMixedState != fSubpixelState) {
    559             paint->writable()->setSubpixelText(SkOSMenu::kOnState == fSubpixelState);
    560         }
    561         if (0 != fHintingState && fHintingState < (int)SK_ARRAY_COUNT(gHintingStates)) {
    562             paint->writable()->setHinting(gHintingStates[fHintingState].hinting);
    563         }
    564         return true;
    565     }
    566 
    567 private:
    568     SkOSMenu::TriState  fLCDState;
    569     SkOSMenu::TriState  fAAState;
    570     SkOSMenu::TriState  fSubpixelState;
    571     int fHintingState;
    572     int fFilterQualityIndex;
    573 
    574     typedef SkPaintFilterCanvas INHERITED;
    575 };
    576 
    577 ///////////////////////////////////////////////////////////////////////////////
    578 
    579 class SampleTFSerializer : public SkTypefaceSerializer {
    580 public:
    581     sk_sp<SkData> serialize(SkTypeface* tf) override {
    582         tf->ref();
    583         return SkData::MakeWithCopy(&tf, sizeof(tf));
    584     }
    585 };
    586 
    587 class SampleTFDeserializer : public SkTypefaceDeserializer {
    588 public:
    589     sk_sp<SkTypeface> deserialize(const void* data, size_t size) override {
    590         SkASSERT(sizeof(SkTypeface*) == size);
    591         SkTypeface* tf;
    592         memcpy(&tf, data, size);
    593         return sk_sp<SkTypeface>(tf);   // this was ref'd in SampleTFSerializer
    594     }
    595 };
    596 
    597 ///////////////////////////////////////////////////////////////////////////////
    598 
    599 enum TilingMode {
    600     kNo_Tiling,
    601     kAbs_128x128_Tiling,
    602     kAbs_256x256_Tiling,
    603     kRel_4x4_Tiling,
    604     kRel_1x16_Tiling,
    605     kRel_16x1_Tiling,
    606 
    607     kLast_TilingMode_Enum
    608 };
    609 
    610 struct TilingInfo {
    611     const char* label;
    612     SkScalar    w, h;
    613 };
    614 
    615 static const struct TilingInfo gTilingInfo[] = {
    616     { "No tiling", SK_Scalar1        , SK_Scalar1         }, // kNo_Tiling
    617     { "128x128"  , SkIntToScalar(128), SkIntToScalar(128) }, // kAbs_128x128_Tiling
    618     { "256x256"  , SkIntToScalar(256), SkIntToScalar(256) }, // kAbs_256x256_Tiling
    619     { "1/4x1/4"  , SK_Scalar1 / 4    , SK_Scalar1 / 4     }, // kRel_4x4_Tiling
    620     { "1/1x1/16" , SK_Scalar1        , SK_Scalar1 / 16    }, // kRel_1x16_Tiling
    621     { "1/16x1/1" , SK_Scalar1 / 16   , SK_Scalar1         }, // kRel_16x1_Tiling
    622 };
    623 static_assert((SK_ARRAY_COUNT(gTilingInfo) == kLast_TilingMode_Enum),
    624               "Incomplete_tiling_labels");
    625 
    626 SkSize SampleWindow::tileSize() const {
    627     SkASSERT((TilingMode)fTilingMode < kLast_TilingMode_Enum);
    628     const struct TilingInfo* info = gTilingInfo + fTilingMode;
    629     return SkSize::Make(info->w > SK_Scalar1 ? info->w : this->width() * info->w,
    630                         info->h > SK_Scalar1 ? info->h : this->height() * info->h);
    631 }
    632 //////////////////////////////////////////////////////////////////////////////
    633 
    634 static SkView* curr_view(SkWindow* wind) {
    635     SkView::F2BIter iter(wind);
    636     return iter.next();
    637 }
    638 
    639 static bool curr_title(SkWindow* wind, SkString* title) {
    640     SkView* view = curr_view(wind);
    641     if (view) {
    642         SkEvent evt(gTitleEvtName);
    643         if (view->doQuery(&evt)) {
    644             title->set(evt.findString(gTitleEvtName));
    645             return true;
    646         }
    647     }
    648     return false;
    649 }
    650 
    651 bool SampleWindow::sendAnimatePulse() {
    652     SkView* view = curr_view(this);
    653     if (SampleView::IsSampleView(view)) {
    654         return ((SampleView*)view)->animate(gAnimTimer);
    655     }
    656     return false;
    657 }
    658 
    659 void SampleWindow::setZoomCenter(float x, float y) {
    660     fZoomCenterX = x;
    661     fZoomCenterY = y;
    662 }
    663 
    664 bool SampleWindow::zoomIn() {
    665     // Arbitrarily decided
    666     if (fFatBitsScale == kMaxFatBitsScale) return false;
    667     fFatBitsScale++;
    668     this->inval(nullptr);
    669     return true;
    670 }
    671 
    672 bool SampleWindow::zoomOut() {
    673     if (fFatBitsScale == 1) return false;
    674     fFatBitsScale--;
    675     this->inval(nullptr);
    676     return true;
    677 }
    678 
    679 void SampleWindow::updatePointer(int x, int y) {
    680     fMouseX = x;
    681     fMouseY = y;
    682     if (fShowZoomer) {
    683         this->inval(nullptr);
    684     }
    685 }
    686 
    687 static inline SampleWindow::DeviceType cycle_devicetype(SampleWindow::DeviceType ct) {
    688     static const SampleWindow::DeviceType gCT[] = {
    689         SampleWindow::kRaster_DeviceType
    690 #if SK_SUPPORT_GPU
    691         , SampleWindow::kGPU_DeviceType
    692 #if SK_ANGLE
    693         , SampleWindow::kANGLE_DeviceType
    694 #endif // SK_ANGLE
    695 #endif // SK_SUPPORT_GPU
    696     };
    697     static_assert(SK_ARRAY_COUNT(gCT) == SampleWindow::kDeviceTypeCnt, "array_size_mismatch");
    698     return gCT[ct];
    699 }
    700 
    701 static SkString getSampleTitle(const SkViewFactory* sampleFactory) {
    702     SkView* view = (*sampleFactory)();
    703     SkString title;
    704     SampleCode::RequestTitle(view, &title);
    705     view->unref();
    706     return title;
    707 }
    708 
    709 static bool compareSampleTitle(const SkViewFactory* first, const SkViewFactory* second) {
    710     return strcmp(getSampleTitle(first).c_str(), getSampleTitle(second).c_str()) < 0;
    711 }
    712 
    713 static int find_by_title(const SkViewFactory* const* factories, int count, const char title[]) {
    714     for (int i = 0; i < count; i++) {
    715         if (getSampleTitle(factories[i]).equals(title)) {
    716             return i;
    717         }
    718     }
    719     return -1;
    720 }
    721 
    722 static void restrict_samples(SkTDArray<const SkViewFactory*>& factories, const SkString titles[],
    723                              int count) {
    724     int newCount = 0;
    725     for (int i = 0; i < count; ++i) {
    726         int index = find_by_title(factories.begin(), factories.count(), titles[i].c_str());
    727         if (index >= 0) {
    728             SkTSwap(factories.begin()[newCount], factories.begin()[index]);
    729             newCount += 1;
    730         }
    731     }
    732     if (newCount) {
    733         factories.setCount(newCount);
    734     }
    735 }
    736 
    737 DEFINE_string(slide, "", "Start on this sample.");
    738 DEFINE_string(pictureDir, "", "Read pictures from here.");
    739 DEFINE_string(picture, "", "Path to single picture.");
    740 DEFINE_string(pathfinder, "", "SKP file with a single path to isolate.");
    741 DEFINE_string(svg, "", "Path to single SVG file.");
    742 DEFINE_string(svgDir, "", "Read SVGs from here.");
    743 DEFINE_string(sequence, "", "Path to file containing the desired samples/gms to show.");
    744 DEFINE_bool(sort, false, "Sort samples by title.");
    745 DEFINE_bool(list, false, "List samples?");
    746 DEFINE_bool(startgpu, false, "Start up with gpu?");
    747 DEFINE_bool(redraw, false, "Force continuous redrawing, for profiling or debugging tools.");
    748 #ifdef SAMPLE_PDF_FILE_VIEWER
    749 DEFINE_string(pdfPath, "", "Path to direcotry of pdf files.");
    750 #endif
    751 #if SK_SUPPORT_GPU
    752 DEFINE_pathrenderer_flag;
    753 DEFINE_int32(msaa, 0, "Request multisampling with this count.");
    754 DEFINE_bool(deepColor, false, "Request deep color (10-bit/channel or more) display buffer.");
    755 #endif
    756 
    757 #include "SkTaskGroup.h"
    758 
    759 SampleWindow::SampleWindow(void* hwnd, int argc, char** argv, DeviceManager* devManager)
    760     : INHERITED(hwnd)
    761     , fDevManager(nullptr) {
    762 
    763     SkCommandLineFlags::Parse(argc, argv);
    764 
    765     fCurrIndex = -1;
    766 
    767     if (!FLAGS_pictureDir.isEmpty()) {
    768         SkOSFile::Iter iter(FLAGS_pictureDir[0], "skp");
    769         SkString filename;
    770         while (iter.next(&filename)) {
    771             *fSamples.append() = new PictFileFactory(
    772                 SkOSPath::Join(FLAGS_pictureDir[0], filename.c_str()));
    773         }
    774     }
    775     if (!FLAGS_picture.isEmpty()) {
    776         SkString path(FLAGS_picture[0]);
    777         fCurrIndex = fSamples.count();
    778         *fSamples.append() = new PictFileFactory(path);
    779     }
    780     if (!FLAGS_pathfinder.isEmpty()) {
    781         SkString path(FLAGS_pathfinder[0]);
    782         fCurrIndex = fSamples.count();
    783         *fSamples.append() = new PathFinderFactory(path);
    784     }
    785     if (!FLAGS_svg.isEmpty()) {
    786         SkString path(FLAGS_svg[0]);
    787         fCurrIndex = fSamples.count();
    788         *fSamples.append() = new SVGFileFactory(path);
    789     }
    790     if (!FLAGS_svgDir.isEmpty()) {
    791         SkOSFile::Iter iter(FLAGS_svgDir[0], "svg");
    792         SkString filename;
    793         while (iter.next(&filename)) {
    794             *fSamples.append() = new SVGFileFactory(
    795                 SkOSPath::Join(FLAGS_svgDir[0], filename.c_str()));
    796         }
    797     }
    798 #ifdef SAMPLE_PDF_FILE_VIEWER
    799     if (!FLAGS_pdfPath.isEmpty()) {
    800         SkOSFile::Iter iter(FLAGS_pdfPath[0], "pdf");
    801         SkString filename;
    802         while (iter.next(&filename)) {
    803             *fSamples.append() = new PdfFileViewerFactory(
    804                 SkOSPath::Join(FLAGS_pictureDir[0], filename.c_str()));
    805         }
    806     }
    807 #endif
    808     SkGMRegistyToSampleRegistry();
    809     {
    810         const SkViewRegister* reg = SkViewRegister::Head();
    811         while (reg) {
    812             *fSamples.append() = reg->factory();
    813             reg = reg->next();
    814         }
    815     }
    816 
    817     if (!FLAGS_sequence.isEmpty()) {
    818         // The sequence file just contains a list (separated by CRs) of the samples or GM:gms
    819         // you want to restrict to. Only these will appear when you cycle through.
    820         // If none are found, or the file is empty, then it will be ignored, and all samples
    821         // will be available.
    822         SkFILEStream stream(FLAGS_sequence[0]);
    823         if (stream.isValid()) {
    824             size_t len = stream.getLength();
    825             SkAutoTMalloc<char> storage(len + 1);
    826             char* buffer = storage.get();
    827             stream.read(buffer, len);
    828             buffer[len] = 0;
    829 
    830             SkTArray<SkString> titles;
    831             SkStrSplit(buffer, "\n\r", &titles);
    832             restrict_samples(fSamples, titles.begin(), titles.count());
    833         }
    834     }
    835 
    836     if (FLAGS_sort) {
    837         // Sort samples, so foo.skp and foo.pdf are consecutive and we can quickly spot where
    838         // skp -> pdf -> png fails.
    839         SkTQSort(fSamples.begin(), fSamples.end() ? fSamples.end() - 1 : nullptr, compareSampleTitle);
    840     }
    841 
    842     if (!FLAGS_slide.isEmpty()) {
    843         fCurrIndex = findByTitle(FLAGS_slide[0]);
    844         if (fCurrIndex < 0) {
    845             fprintf(stderr, "Unknown sample \"%s\"\n", FLAGS_slide[0]);
    846             listTitles();
    847         }
    848     }
    849 
    850 #if SK_SUPPORT_GPU
    851     fBackendOptions.fGrContextOptions.fGpuPathRenderers = CollectGpuPathRenderersFromFlags();
    852     fBackendOptions.fMSAASampleCount = FLAGS_msaa;
    853     fBackendOptions.fDeepColor = FLAGS_deepColor;
    854 #endif
    855     fColorConfigIndex = 0;
    856 
    857     if (FLAGS_list) {
    858         listTitles();
    859     }
    860 
    861     if (fCurrIndex < 0) {
    862         SkString title;
    863         if (readTitleFromPrefs(&title)) {
    864             fCurrIndex = findByTitle(title.c_str());
    865         }
    866     }
    867 
    868     if (fCurrIndex < 0) {
    869         fCurrIndex = 0;
    870     }
    871 
    872     static SkTaskGroup::Enabler enabled(-1);
    873     gSampleWindow = this;
    874 
    875     fDeviceType = kRaster_DeviceType;
    876 #if SK_SUPPORT_GPU
    877     if (FLAGS_startgpu) {
    878         fDeviceType = kGPU_DeviceType;
    879     }
    880 #endif
    881 
    882 #if DEFAULT_TO_GPU
    883     fDeviceType = kGPU_DeviceType;
    884 #endif
    885 #if SK_ANGLE && DEFAULT_TO_ANGLE
    886     fDeviceType = kANGLE_DeviceType;
    887 #endif
    888 
    889     fUseClip = false;
    890     fUsePicture = false;
    891     fAnimating = false;
    892     fRotate = false;
    893     fPerspAnim = false;
    894     fRequestGrabImage = false;
    895     fTilingMode = kNo_Tiling;
    896     fMeasureFPS = false;
    897     fUseDeferredCanvas = false;
    898     fLCDState = SkOSMenu::kMixedState;
    899     fAAState = SkOSMenu::kMixedState;
    900     fSubpixelState = SkOSMenu::kMixedState;
    901     fHintingState = 0;
    902     fPixelGeometryIndex = 0;
    903     fFilterQualityIndex = 0;
    904     fFlipAxis = 0;
    905 
    906     fMouseX = fMouseY = 0;
    907     fFatBitsScale = 8;
    908     fTypeface = SkTypeface::MakeFromName("Courier", SkFontStyle(SkFontStyle::kBold_Weight,
    909                                                                 SkFontStyle::kNormal_Width,
    910                                                                 SkFontStyle::kUpright_Slant));
    911     fShowZoomer = false;
    912 
    913     fZoomLevel = 0;
    914     fZoomScale = SK_Scalar1;
    915     fOffset = { 0, 0 };
    916 
    917     fMagnify = false;
    918 
    919     fSaveToPdf = false;
    920     fSaveToSKP = false;
    921 
    922     if (true) {
    923         fPipeSerializer.setTypefaceSerializer(new SampleTFSerializer);
    924         fPipeDeserializer.setTypefaceDeserializer(new SampleTFDeserializer);
    925     }
    926 
    927     int sinkID = this->getSinkID();
    928     fAppMenu = new SkOSMenu;
    929     fAppMenu->setTitle("Global Settings");
    930     int itemID;
    931 
    932     itemID = fAppMenu->appendList("ColorType", "ColorType", sinkID, 0,
    933                                   gConfig[0].fName,
    934                                   gConfig[1].fName,
    935                                   gConfig[2].fName,
    936                                   gConfig[3].fName,
    937                                   gConfig[4].fName,
    938                                   nullptr);
    939     fAppMenu->assignKeyEquivalentToItem(itemID, 'C');
    940 
    941     itemID = fAppMenu->appendList("Device Type", "Device Type", sinkID, 0,
    942                                   "Raster",
    943                                   "OpenGL",
    944 #if SK_ANGLE
    945                                   "ANGLE",
    946 #endif
    947                                   nullptr);
    948     fAppMenu->assignKeyEquivalentToItem(itemID, 'd');
    949     itemID = fAppMenu->appendTriState("AA", "AA", sinkID, fAAState);
    950     fAppMenu->assignKeyEquivalentToItem(itemID, 'b');
    951     itemID = fAppMenu->appendTriState("LCD", "LCD", sinkID, fLCDState);
    952     fAppMenu->assignKeyEquivalentToItem(itemID, 'l');
    953     itemID = fAppMenu->appendList("FilterQuality", "FilterQuality", sinkID, fFilterQualityIndex,
    954                                   gFilterQualityStates[0].fName,
    955                                   gFilterQualityStates[1].fName,
    956                                   gFilterQualityStates[2].fName,
    957                                   gFilterQualityStates[3].fName,
    958                                   gFilterQualityStates[4].fName,
    959                                   nullptr);
    960     fAppMenu->assignKeyEquivalentToItem(itemID, 'n');
    961     itemID = fAppMenu->appendTriState("Subpixel", "Subpixel", sinkID, fSubpixelState);
    962     fAppMenu->assignKeyEquivalentToItem(itemID, 's');
    963     itemID = fAppMenu->appendList("Hinting", "Hinting", sinkID, fHintingState,
    964                                   gHintingStates[0].name,
    965                                   gHintingStates[1].name,
    966                                   gHintingStates[2].name,
    967                                   gHintingStates[3].name,
    968                                   gHintingStates[4].name,
    969                                   nullptr);
    970     fAppMenu->assignKeyEquivalentToItem(itemID, 'h');
    971 
    972     itemID = fAppMenu->appendList("Pixel Geometry", "Pixel Geometry", sinkID, fPixelGeometryIndex,
    973                                   gPixelGeometryStates[0].name,
    974                                   gPixelGeometryStates[1].name,
    975                                   gPixelGeometryStates[2].name,
    976                                   gPixelGeometryStates[3].name,
    977                                   gPixelGeometryStates[4].name,
    978                                   gPixelGeometryStates[5].name,
    979                                   nullptr);
    980     fAppMenu->assignKeyEquivalentToItem(itemID, 'P');
    981 
    982     itemID =fAppMenu->appendList("Tiling", "Tiling", sinkID, fTilingMode,
    983                                  gTilingInfo[kNo_Tiling].label,
    984                                  gTilingInfo[kAbs_128x128_Tiling].label,
    985                                  gTilingInfo[kAbs_256x256_Tiling].label,
    986                                  gTilingInfo[kRel_4x4_Tiling].label,
    987                                  gTilingInfo[kRel_1x16_Tiling].label,
    988                                  gTilingInfo[kRel_16x1_Tiling].label,
    989                                  nullptr);
    990     fAppMenu->assignKeyEquivalentToItem(itemID, 't');
    991 
    992     itemID = fAppMenu->appendSwitch("Slide Show", "Slide Show" , sinkID, false);
    993     fAppMenu->assignKeyEquivalentToItem(itemID, 'a');
    994     itemID = fAppMenu->appendSwitch("Clip", "Clip" , sinkID, fUseClip);
    995     fAppMenu->assignKeyEquivalentToItem(itemID, 'c');
    996     itemID = fAppMenu->appendSwitch("Flip X", "Flip X" , sinkID, false);
    997     fAppMenu->assignKeyEquivalentToItem(itemID, 'x');
    998     itemID = fAppMenu->appendSwitch("Flip Y", "Flip Y" , sinkID, false);
    999     fAppMenu->assignKeyEquivalentToItem(itemID, 'y');
   1000     itemID = fAppMenu->appendSwitch("Zoomer", "Zoomer" , sinkID, fShowZoomer);
   1001     fAppMenu->assignKeyEquivalentToItem(itemID, 'z');
   1002     itemID = fAppMenu->appendSwitch("Magnify", "Magnify" , sinkID, fMagnify);
   1003     fAppMenu->assignKeyEquivalentToItem(itemID, 'm');
   1004 
   1005     itemID = fAppMenu->appendAction("Save to PDF", sinkID);
   1006     fAppMenu->assignKeyEquivalentToItem(itemID, 'e');
   1007 
   1008     this->addMenu(fAppMenu);
   1009     fSlideMenu = new SkOSMenu;
   1010     this->addMenu(fSlideMenu);
   1011 
   1012     this->setVisibleP(true);
   1013     this->setClipToBounds(false);
   1014 
   1015     this->loadView((*fSamples[fCurrIndex])());
   1016 
   1017     if (nullptr == devManager) {
   1018         fDevManager = new DefaultDeviceManager();
   1019     } else {
   1020         devManager->ref();
   1021         fDevManager = devManager;
   1022     }
   1023     fDevManager->setUpBackend(this, fBackendOptions);
   1024 
   1025     // If another constructor set our dimensions, ensure that our
   1026     // onSizeChange gets called.
   1027     if (this->height() && this->width()) {
   1028         this->onSizeChange();
   1029     }
   1030 
   1031     // can't call this synchronously, since it may require a subclass to
   1032     // to implement, or the caller may need us to have returned from the
   1033     // constructor first. Hence we post an event to ourselves.
   1034 //    this->updateTitle();
   1035     post_event_to_sink(new SkEvent(gUpdateWindowTitleEvtName), this);
   1036 
   1037     gAnimTimer.run();
   1038 }
   1039 
   1040 SampleWindow::~SampleWindow() {
   1041     SkSafeUnref(fDevManager);
   1042 }
   1043 
   1044 
   1045 int SampleWindow::findByTitle(const char title[]) {
   1046     int i, count = fSamples.count();
   1047     for (i = 0; i < count; i++) {
   1048         if (getSampleTitle(i).equals(title)) {
   1049             return i;
   1050         }
   1051     }
   1052     return -1;
   1053 }
   1054 
   1055 void SampleWindow::listTitles() {
   1056     int count = fSamples.count();
   1057     SkDebugf("All Slides:\n");
   1058     for (int i = 0; i < count; i++) {
   1059         SkDebugf("    %s\n", getSampleTitle(i).c_str());
   1060     }
   1061 }
   1062 
   1063 static SkBitmap capture_bitmap(SkCanvas* canvas) {
   1064     SkBitmap bm;
   1065     if (bm.tryAllocPixels(canvas->imageInfo())) {
   1066         canvas->readPixels(&bm, 0, 0);
   1067     }
   1068     return bm;
   1069 }
   1070 
   1071 static void drawText(SkCanvas* canvas, SkString str, SkScalar left, SkScalar top, SkPaint& paint) {
   1072     SkColor desiredColor = paint.getColor();
   1073     paint.setColor(SK_ColorWHITE);
   1074     const char* c_str = str.c_str();
   1075     size_t size = str.size();
   1076     SkRect bounds;
   1077     paint.measureText(c_str, size, &bounds);
   1078     bounds.offset(left, top);
   1079     SkScalar inset = SkIntToScalar(-2);
   1080     bounds.inset(inset, inset);
   1081     canvas->drawRect(bounds, paint);
   1082     paint.setColor(desiredColor);
   1083     canvas->drawText(c_str, size, left, top, paint);
   1084 }
   1085 
   1086 #define XCLIP_N  8
   1087 #define YCLIP_N  8
   1088 
   1089 #include "SkDeferredCanvas.h"
   1090 #include "SkDumpCanvas.h"
   1091 
   1092 void SampleWindow::draw(SkCanvas* canvas) {
   1093     gAnimTimer.updateTime();
   1094 
   1095     if (fGesture.isActive()) {
   1096         this->updateMatrix();
   1097     }
   1098 
   1099     if (fMeasureFPS) {
   1100         fMeasureFPS_Time = 0;
   1101     }
   1102 
   1103     SkSize tile = this->tileSize();
   1104 
   1105     if (kNo_Tiling == fTilingMode) {
   1106         SkDebugfDumper dumper;
   1107         SkDumpCanvas dump(&dumper);
   1108         SkDeferredCanvas deferred(canvas, SkDeferredCanvas::kEager);
   1109         SkCanvas* c = fUseDeferredCanvas ? &deferred : canvas;
   1110         this->INHERITED::draw(c); // no looping or surfaces needed
   1111     } else {
   1112         const SkScalar w = SkScalarCeilToScalar(tile.width());
   1113         const SkScalar h = SkScalarCeilToScalar(tile.height());
   1114         SkImageInfo info = SkImageInfo::MakeN32Premul(SkScalarTruncToInt(w), SkScalarTruncToInt(h));
   1115         auto surface(canvas->makeSurface(info));
   1116         SkCanvas* tileCanvas = surface->getCanvas();
   1117 
   1118         for (SkScalar y = 0; y < height(); y += h) {
   1119             for (SkScalar x = 0; x < width(); x += w) {
   1120                 SkAutoCanvasRestore acr(tileCanvas, true);
   1121                 tileCanvas->translate(-x, -y);
   1122                 tileCanvas->clear(0);
   1123                 this->INHERITED::draw(tileCanvas);
   1124                 surface->draw(canvas, x, y, nullptr);
   1125             }
   1126         }
   1127 
   1128         // for drawing the borders between tiles
   1129         SkPaint paint;
   1130         paint.setColor(0x60FF00FF);
   1131         paint.setStyle(SkPaint::kStroke_Style);
   1132 
   1133         for (SkScalar y = 0; y < height(); y += tile.height()) {
   1134             for (SkScalar x = 0; x < width(); x += tile.width()) {
   1135                 canvas->drawRect(SkRect::MakeXYWH(x, y, tile.width(), tile.height()), paint);
   1136             }
   1137         }
   1138     }
   1139 
   1140     if (fShowZoomer && !fSaveToPdf) {
   1141         showZoomer(canvas);
   1142     }
   1143     if (fMagnify && !fSaveToPdf) {
   1144         magnify(canvas);
   1145     }
   1146 
   1147     if (fMeasureFPS && fMeasureFPS_Time) {
   1148         this->updateTitle();
   1149         this->postInvalDelay();
   1150     }
   1151 
   1152     if (this->sendAnimatePulse() || FLAGS_redraw) {
   1153         this->inval(nullptr);
   1154     }
   1155 
   1156     // do this last
   1157     fDevManager->publishCanvas(fDeviceType, canvas, this);
   1158 }
   1159 
   1160 static float clipW = 200;
   1161 static float clipH = 200;
   1162 void SampleWindow::magnify(SkCanvas* canvas) {
   1163     SkRect r;
   1164     int count = canvas->save();
   1165 
   1166     SkMatrix m = canvas->getTotalMatrix();
   1167     if (!m.invert(&m)) {
   1168         return;
   1169     }
   1170     SkPoint offset, center;
   1171     SkScalar mouseX = fMouseX * SK_Scalar1;
   1172     SkScalar mouseY = fMouseY * SK_Scalar1;
   1173     m.mapXY(mouseX - clipW/2, mouseY - clipH/2, &offset);
   1174     m.mapXY(mouseX, mouseY, &center);
   1175 
   1176     r.set(0, 0, clipW * m.getScaleX(), clipH * m.getScaleX());
   1177     r.offset(offset.fX, offset.fY);
   1178 
   1179     SkPaint paint;
   1180     paint.setColor(0xFF66AAEE);
   1181     paint.setStyle(SkPaint::kStroke_Style);
   1182     paint.setStrokeWidth(10.f * m.getScaleX());
   1183     //lense offset
   1184     //canvas->translate(0, -250);
   1185     canvas->drawRect(r, paint);
   1186     canvas->clipRect(r);
   1187 
   1188     m = canvas->getTotalMatrix();
   1189     m.setTranslate(-center.fX, -center.fY);
   1190     m.postScale(0.5f * fFatBitsScale, 0.5f * fFatBitsScale);
   1191     m.postTranslate(center.fX, center.fY);
   1192     canvas->concat(m);
   1193 
   1194     this->INHERITED::draw(canvas);
   1195 
   1196     canvas->restoreToCount(count);
   1197 }
   1198 
   1199 static SkPaint& set_color_ref(SkPaint& paint, SkColor c) {
   1200     paint.setColor(c);
   1201     return paint;
   1202 }
   1203 
   1204 static void show_lcd_box(SkCanvas* canvas, SkScalar x, SkScalar y, SkColor c,
   1205                          SkScalar sx, SkScalar sy) {
   1206     const SkScalar w = (1 - 1/sx) / 3;
   1207     SkPaint paint;
   1208     SkRect r = SkRect::MakeXYWH(x, y, w, 1 - 1/sy);
   1209     canvas->drawRect(r, set_color_ref(paint, SkColorSetRGB(SkColorGetR(c), 0, 0)));
   1210     r.offset(w, 0);
   1211     canvas->drawRect(r, set_color_ref(paint, SkColorSetRGB(0, SkColorGetG(c), 0)));
   1212     r.offset(w, 0);
   1213     canvas->drawRect(r, set_color_ref(paint, SkColorSetRGB(0, 0, SkColorGetB(c))));
   1214 }
   1215 
   1216 static void show_lcd_circle(SkCanvas* canvas, SkScalar x, SkScalar y, SkColor c,
   1217                             SkScalar, SkScalar) {
   1218     const SkRect r = SkRect::MakeXYWH(x, y, 1, 1);
   1219     const SkScalar cx = x + 0.5f;
   1220     const SkScalar cy = y + 0.5f;
   1221 
   1222     SkPaint paint;
   1223     paint.setAntiAlias(true);
   1224 
   1225     SkPath path;
   1226     path.addArc(r, 0, 120); path.lineTo(cx, cy);
   1227     canvas->drawPath(path, set_color_ref(paint, SkColorSetRGB(SkColorGetR(c), 0, 0)));
   1228 
   1229     path.reset(); path.addArc(r, 120, 120); path.lineTo(cx, cy);
   1230     canvas->drawPath(path, set_color_ref(paint, SkColorSetRGB(0, SkColorGetG(c), 0)));
   1231 
   1232     path.reset(); path.addArc(r, 240, 120); path.lineTo(cx, cy);
   1233     canvas->drawPath(path, set_color_ref(paint, SkColorSetRGB(0, 0, SkColorGetB(c))));
   1234 }
   1235 
   1236 typedef void (*ShowLCDProc)(SkCanvas*, SkScalar, SkScalar, SkColor, SkScalar, SkScalar);
   1237 
   1238 /*
   1239  *  Like drawBitmapRect but we manually draw each pixels in RGB
   1240  */
   1241 static void show_lcd_grid(SkCanvas* canvas, const SkBitmap& bitmap,
   1242                           const SkIRect& origSrc, const SkRect& dst, ShowLCDProc proc) {
   1243     SkIRect src;
   1244     if (!src.intersect(origSrc, bitmap.bounds())) {
   1245         return;
   1246     }
   1247     const SkScalar sx = dst.width() / src.width();
   1248     const SkScalar sy = dst.height() / src.height();
   1249 
   1250     SkAutoCanvasRestore acr(canvas, true);
   1251     canvas->translate(dst.left(), dst.top());
   1252     canvas->scale(sx, sy);
   1253 
   1254     for (int y = 0; y < src.height(); ++y) {
   1255         for (int x = 0; x < src.width(); ++x) {
   1256             proc(canvas, SkIntToScalar(x), SkIntToScalar(y),
   1257                  bitmap.getColor(src.left() + x, src.top() + y), sx, sy);
   1258         }
   1259     }
   1260 }
   1261 
   1262 void SampleWindow::showZoomer(SkCanvas* canvas) {
   1263     int count = canvas->save();
   1264     canvas->resetMatrix();
   1265     // Ensure the mouse position is on screen.
   1266     int width = SkScalarRoundToInt(this->width());
   1267     int height = SkScalarRoundToInt(this->height());
   1268     if (fMouseX >= width) fMouseX = width - 1;
   1269     else if (fMouseX < 0) fMouseX = 0;
   1270     if (fMouseY >= height) fMouseY = height - 1;
   1271     else if (fMouseY < 0) fMouseY = 0;
   1272 
   1273     SkBitmap bitmap = capture_bitmap(canvas);
   1274     bitmap.lockPixels();
   1275 
   1276     // Find the size of the zoomed in view, forced to be odd, so the examined pixel is in the middle.
   1277     int zoomedWidth = (width >> 1) | 1;
   1278     int zoomedHeight = (height >> 1) | 1;
   1279     SkIRect src;
   1280     src.set(0, 0, zoomedWidth / fFatBitsScale, zoomedHeight / fFatBitsScale);
   1281     src.offset(fMouseX - (src.width()>>1), fMouseY - (src.height()>>1));
   1282     SkRect dest;
   1283     dest.set(0, 0, SkIntToScalar(zoomedWidth), SkIntToScalar(zoomedHeight));
   1284     dest.offset(SkIntToScalar(width - zoomedWidth), SkIntToScalar(height - zoomedHeight));
   1285     SkPaint paint;
   1286     // Clear the background behind our zoomed in view
   1287     paint.setColor(SK_ColorWHITE);
   1288     canvas->drawRect(dest, paint);
   1289     switch (fFatBitsScale) {
   1290         case kMaxFatBitsScale:
   1291             show_lcd_grid(canvas, bitmap, src, dest, show_lcd_box);
   1292             break;
   1293         case kMaxFatBitsScale - 1:
   1294             show_lcd_grid(canvas, bitmap, src, dest, show_lcd_circle);
   1295             break;
   1296         default:
   1297             canvas->drawBitmapRect(bitmap, src, dest, nullptr);
   1298             break;
   1299     }
   1300 
   1301     paint.setColor(SK_ColorBLACK);
   1302     paint.setStyle(SkPaint::kStroke_Style);
   1303     // Draw a border around the pixel in the middle
   1304     SkRect originalPixel;
   1305     originalPixel.set(SkIntToScalar(fMouseX), SkIntToScalar(fMouseY), SkIntToScalar(fMouseX + 1), SkIntToScalar(fMouseY + 1));
   1306     SkMatrix matrix;
   1307     SkRect scalarSrc;
   1308     scalarSrc.set(src);
   1309     SkColor color = bitmap.getColor(fMouseX, fMouseY);
   1310     if (matrix.setRectToRect(scalarSrc, dest, SkMatrix::kFill_ScaleToFit)) {
   1311         SkRect pixel;
   1312         matrix.mapRect(&pixel, originalPixel);
   1313         // TODO Perhaps measure the values and make the outline white if it's "dark"
   1314         if (color == SK_ColorBLACK) {
   1315             paint.setColor(SK_ColorWHITE);
   1316         }
   1317         canvas->drawRect(pixel, paint);
   1318     }
   1319     paint.setColor(SK_ColorBLACK);
   1320     // Draw a border around the destination rectangle
   1321     canvas->drawRect(dest, paint);
   1322     paint.setStyle(SkPaint::kStrokeAndFill_Style);
   1323     // Identify the pixel and its color on screen
   1324     paint.setTypeface(fTypeface);
   1325     paint.setAntiAlias(true);
   1326     paint.setTextSize(18);
   1327     SkScalar lineHeight = paint.getFontMetrics(nullptr);
   1328     SkString string;
   1329     string.appendf("(%i, %i)", fMouseX, fMouseY);
   1330     SkScalar left = dest.fLeft + SkIntToScalar(3);
   1331     SkScalar i = SK_Scalar1;
   1332     drawText(canvas, string, left, lineHeight * i + dest.fTop, paint);
   1333     // Alpha
   1334     i += SK_Scalar1;
   1335     string.reset();
   1336     string.appendf("A: %X", SkColorGetA(color));
   1337     drawText(canvas, string, left, lineHeight * i + dest.fTop, paint);
   1338     // Red
   1339     i += SK_Scalar1;
   1340     string.reset();
   1341     string.appendf("R: %X", SkColorGetR(color));
   1342     paint.setColor(SK_ColorRED);
   1343     drawText(canvas, string, left, lineHeight * i + dest.fTop, paint);
   1344     // Green
   1345     i += SK_Scalar1;
   1346     string.reset();
   1347     string.appendf("G: %X", SkColorGetG(color));
   1348     paint.setColor(0xFF008800);
   1349     drawText(canvas, string, left, lineHeight * i + dest.fTop, paint);
   1350     // Blue
   1351     i += SK_Scalar1;
   1352     string.reset();
   1353     string.appendf("B: %X", SkColorGetB(color));
   1354     paint.setColor(SK_ColorBLUE);
   1355     drawText(canvas, string, left, lineHeight * i + dest.fTop, paint);
   1356     canvas->restoreToCount(count);
   1357 }
   1358 
   1359 void SampleWindow::onDraw(SkCanvas* canvas) {
   1360 }
   1361 
   1362 #include "SkColorPriv.h"
   1363 
   1364 void SampleWindow::saveToPdf()
   1365 {
   1366     fSaveToPdf = true;
   1367     this->inval(nullptr);
   1368 }
   1369 
   1370 SkCanvas* SampleWindow::beforeChildren(SkCanvas* canvas) {
   1371     if (fSaveToPdf) {
   1372         SkString name;
   1373         if (!this->getRawTitle(&name)) {
   1374             name.set("unknown_sample");
   1375         }
   1376         name.append(".pdf");
   1377 #ifdef SK_BUILD_FOR_ANDROID
   1378         name.prepend("/sdcard/");
   1379 #endif
   1380         fPDFDocument = SkDocument::MakePDF(name.c_str());
   1381         canvas = fPDFDocument->beginPage(this->width(), this->height());
   1382     } else if (fSaveToSKP) {
   1383         canvas = fRecorder.beginRecording(9999, 9999, nullptr, 0);
   1384     } else if (fUsePicture) {
   1385         if (PICTURE_MEANS_PIPE) {
   1386             fPipeStream.reset(new SkDynamicMemoryWStream);
   1387             canvas = fPipeSerializer.beginWrite(SkRect::MakeWH(this->width(), this->height()),
   1388                                                 fPipeStream.get());
   1389         } else {
   1390             canvas = fRecorder.beginRecording(9999, 9999, nullptr, 0);
   1391         }
   1392     } else {
   1393         canvas = this->INHERITED::beforeChildren(canvas);
   1394     }
   1395 
   1396     if (fUseClip) {
   1397         canvas->drawColor(0xFFFF88FF);
   1398         canvas->clipPath(fClipPath, kIntersect_SkClipOp, true);
   1399     }
   1400 
   1401     // Install a flags filter proxy canvas if needed
   1402     if (fLCDState != SkOSMenu::kMixedState ||
   1403         fAAState != SkOSMenu::kMixedState ||
   1404         fSubpixelState != SkOSMenu::kMixedState ||
   1405         fHintingState > 0 ||
   1406         fFilterQualityIndex > 0) {
   1407         canvas = new FlagsFilterCanvas(canvas, fLCDState, fAAState, fSubpixelState, fHintingState,
   1408                                        fFilterQualityIndex);
   1409         fFlagsFilterCanvas.reset(canvas);
   1410     }
   1411 
   1412     return canvas;
   1413 }
   1414 #include "SkMultiPictureDraw.h"
   1415 void SampleWindow::afterChildren(SkCanvas* orig) {
   1416     fFlagsFilterCanvas.reset(nullptr);
   1417 
   1418     if (fSaveToPdf) {
   1419         fSaveToPdf = false;
   1420         fPDFDocument->endPage();
   1421         fPDFDocument.reset(nullptr);
   1422         // We took over the draw calls in order to create the PDF, so we need
   1423         // to redraw.
   1424         this->inval(nullptr);
   1425         return;
   1426     }
   1427 
   1428     if (fRequestGrabImage) {
   1429         fRequestGrabImage = false;
   1430 
   1431         SkBitmap bmp = capture_bitmap(orig);
   1432         if (!bmp.isNull()) {
   1433             static int gSampleGrabCounter;
   1434             SkString name;
   1435             name.printf("sample_grab_%d.png", gSampleGrabCounter++);
   1436             sk_tool_utils::EncodeImageToFile(name.c_str(), bmp,
   1437                                        SkEncodedImageFormat::kPNG, 100);
   1438         }
   1439         this->inval(nullptr);
   1440         return;
   1441     }
   1442 
   1443     if (fSaveToSKP) {
   1444         sk_sp<SkPicture> picture(fRecorder.finishRecordingAsPicture());
   1445         SkFILEWStream stream("sample_app.skp");
   1446         picture->serialize(&stream);
   1447         fSaveToSKP = false;
   1448         this->inval(nullptr);
   1449         return;
   1450     }
   1451 
   1452     if (fUsePicture) {
   1453         if (PICTURE_MEANS_PIPE) {
   1454             fPipeSerializer.endWrite();
   1455             sk_sp<SkData> data(fPipeStream->detachAsData());
   1456             fPipeDeserializer.playback(data->data(), data->size(), orig);
   1457             fPipeStream.reset();
   1458         } else {
   1459             sk_sp<SkPicture> picture(fRecorder.finishRecordingAsPicture());
   1460             if (SERIALIZE_PICTURE) {
   1461                 auto data = picture->serialize();
   1462                 picture = SkPicture::MakeFromData(data.get(), nullptr);
   1463             }
   1464             orig->drawPicture(picture.get());
   1465         }
   1466     }
   1467 
   1468     // Do this after presentGL and other finishing, rather than in afterChild
   1469     if (fMeasureFPS) {
   1470         orig->flush();
   1471         fTimer.end();
   1472         fMeasureFPS_Time += fTimer.fWall;
   1473     }
   1474 }
   1475 
   1476 void SampleWindow::beforeChild(SkView* child, SkCanvas* canvas) {
   1477     if (fRotate) {
   1478         SkScalar cx = this->width() / 2;
   1479         SkScalar cy = this->height() / 2;
   1480         canvas->rotate(gAnimTimer.scaled(10), cx, cy);
   1481     }
   1482 
   1483     if (fPerspAnim) {
   1484         SkScalar secs = gAnimTimer.scaled(1);
   1485 
   1486         static const SkScalar gAnimPeriod = 10 * SK_Scalar1;
   1487         static const SkScalar gAnimMag = SK_Scalar1 / 1000;
   1488         SkScalar t = SkScalarMod(secs, gAnimPeriod);
   1489         if (SkScalarFloorToInt(secs / gAnimPeriod) & 0x1) {
   1490             t = gAnimPeriod - t;
   1491         }
   1492         t = 2 * t - gAnimPeriod;
   1493         t *= gAnimMag / gAnimPeriod;
   1494         SkMatrix m;
   1495         m.reset();
   1496 #if 1
   1497         m.setPerspY(t);
   1498 #else
   1499         m.setPerspY(SK_Scalar1 / 1000);
   1500         m.setSkewX(8.0f / 25);
   1501         m.dump();
   1502 #endif
   1503         canvas->concat(m);
   1504     }
   1505 
   1506     if (fMeasureFPS) {
   1507         (void)SampleView::SetRepeatDraw(child, FPS_REPEAT_COUNT);
   1508         fTimer.start();
   1509     } else {
   1510         (void)SampleView::SetRepeatDraw(child, 1);
   1511     }
   1512     if (fPerspAnim || fRotate) {
   1513         this->inval(nullptr);
   1514     }
   1515 }
   1516 
   1517 void SampleWindow::changeOffset(SkVector delta) {
   1518     fOffset += delta;
   1519     this->updateMatrix();
   1520 }
   1521 
   1522 void SampleWindow::changeZoomLevel(float delta) {
   1523     fZoomLevel += delta;
   1524     if (fZoomLevel > 0) {
   1525         fZoomLevel = SkMinScalar(fZoomLevel, MAX_ZOOM_LEVEL);
   1526         fZoomScale = fZoomLevel + SK_Scalar1;
   1527     } else if (fZoomLevel < 0) {
   1528         fZoomLevel = SkMaxScalar(fZoomLevel, MIN_ZOOM_LEVEL);
   1529         fZoomScale = SK_Scalar1 / (SK_Scalar1 - fZoomLevel);
   1530     } else {
   1531         fZoomScale = SK_Scalar1;
   1532     }
   1533     this->updateMatrix();
   1534 }
   1535 
   1536 void SampleWindow::updateMatrix(){
   1537     SkMatrix m;
   1538     m.reset();
   1539 
   1540     if (fZoomLevel) {
   1541         SkPoint center;
   1542         //m = this->getLocalMatrix();//.invert(&m);
   1543         m.mapXY(fZoomCenterX, fZoomCenterY, &center);
   1544         SkScalar cx = center.fX;
   1545         SkScalar cy = center.fY;
   1546 
   1547         m.setTranslate(-cx, -cy);
   1548         m.postScale(fZoomScale, fZoomScale);
   1549         m.postTranslate(cx, cy);
   1550     }
   1551 
   1552     m.postTranslate(fOffset.fX, fOffset.fY);
   1553 
   1554     if (fFlipAxis) {
   1555         m.preTranslate(fZoomCenterX, fZoomCenterY);
   1556         if (fFlipAxis & kFlipAxis_X) {
   1557             m.preScale(-SK_Scalar1, SK_Scalar1);
   1558         }
   1559         if (fFlipAxis & kFlipAxis_Y) {
   1560             m.preScale(SK_Scalar1, -SK_Scalar1);
   1561         }
   1562         m.preTranslate(-fZoomCenterX, -fZoomCenterY);
   1563         //canvas->concat(m);
   1564     }
   1565     // Apply any gesture matrix
   1566     m.preConcat(fGesture.localM());
   1567     m.preConcat(fGesture.globalM());
   1568 
   1569     this->setLocalMatrix(m);
   1570 
   1571     this->updateTitle();
   1572     this->inval(nullptr);
   1573 }
   1574 bool SampleWindow::previousSample() {
   1575     fCurrIndex = (fCurrIndex - 1 + fSamples.count()) % fSamples.count();
   1576     this->loadView((*fSamples[fCurrIndex])());
   1577     return true;
   1578 }
   1579 
   1580 #include "SkResourceCache.h"
   1581 #include "SkGlyphCache.h"
   1582 bool SampleWindow::nextSample() {
   1583     fCurrIndex = (fCurrIndex + 1) % fSamples.count();
   1584     this->loadView((*fSamples[fCurrIndex])());
   1585 
   1586     if (false) {
   1587         SkResourceCache::TestDumpMemoryStatistics();
   1588         SkGlyphCache::Dump();
   1589         SkDebugf("\n");
   1590     }
   1591 
   1592     return true;
   1593 }
   1594 
   1595 bool SampleWindow::goToSample(int i) {
   1596     fCurrIndex = (i) % fSamples.count();
   1597     this->loadView((*fSamples[fCurrIndex])());
   1598     return true;
   1599 }
   1600 
   1601 SkString SampleWindow::getSampleTitle(int i) {
   1602     return ::getSampleTitle(fSamples[i]);
   1603 }
   1604 
   1605 int SampleWindow::sampleCount() {
   1606     return fSamples.count();
   1607 }
   1608 
   1609 void SampleWindow::showOverview() {
   1610     this->loadView(create_overview(fSamples.count(), fSamples.begin()));
   1611 }
   1612 
   1613 void SampleWindow::postAnimatingEvent() {
   1614     if (fAnimating) {
   1615         (new SkEvent(ANIMATING_EVENTTYPE, this->getSinkID()))->postDelay(ANIMATING_DELAY);
   1616     }
   1617 }
   1618 
   1619 static sk_sp<SkColorSpace> getMonitorColorSpace() {
   1620 #if defined(SK_BUILD_FOR_MAC)
   1621     CGColorSpaceRef cs = CGDisplayCopyColorSpace(CGMainDisplayID());
   1622     CFDataRef dataRef = CGColorSpaceCopyICCProfile(cs);
   1623     const uint8_t* data = CFDataGetBytePtr(dataRef);
   1624     size_t size = CFDataGetLength(dataRef);
   1625 
   1626     sk_sp<SkColorSpace> colorSpace = SkColorSpace::MakeICC(data, size);
   1627 
   1628     CFRelease(cs);
   1629     CFRelease(dataRef);
   1630     return colorSpace;
   1631 #elif defined(SK_BUILD_FOR_WIN)
   1632     DISPLAY_DEVICE dd = { sizeof(DISPLAY_DEVICE) };
   1633 
   1634     // Chrome's code for this currently just gets the primary monitor's profile. This code iterates
   1635     // over all attached monitors, so it's "better" in that sense. Making intelligent use of this
   1636     // information (via things like MonitorFromWindow or MonitorFromRect to pick the correct
   1637     // profile for a particular window or region of a window), is an exercise left to the reader.
   1638     for (int i = 0; EnumDisplayDevices(NULL, i, &dd, 0); ++i) {
   1639         if (dd.StateFlags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP) {
   1640             // There are other helpful things in dd at this point:
   1641             // dd.DeviceString has a longer name for the adapter
   1642             // dd.StateFlags indicates primary display, mirroring, etc...
   1643             HDC dc = CreateDC(NULL, dd.DeviceName, NULL, NULL);
   1644             if (dc) {
   1645                 char icmPath[MAX_PATH + 1];
   1646                 DWORD pathLength = MAX_PATH;
   1647                 BOOL success = GetICMProfileA(dc, &pathLength, icmPath);
   1648                 DeleteDC(dc);
   1649                 if (success) {
   1650                     sk_sp<SkData> iccData = SkData::MakeFromFileName(icmPath);
   1651                     return SkColorSpace::MakeICC(iccData->data(), iccData->size());
   1652                 }
   1653             }
   1654         }
   1655     }
   1656 
   1657     return nullptr;
   1658 #else
   1659     return nullptr;
   1660 #endif
   1661 }
   1662 
   1663 bool SampleWindow::onEvent(const SkEvent& evt) {
   1664     if (evt.isType(gUpdateWindowTitleEvtName)) {
   1665         this->updateTitle();
   1666         return true;
   1667     }
   1668     if (evt.isType(ANIMATING_EVENTTYPE)) {
   1669         if (fAnimating) {
   1670             this->nextSample();
   1671             this->postAnimatingEvent();
   1672         }
   1673         return true;
   1674     }
   1675     if (evt.isType("set-curr-index")) {
   1676         this->goToSample(evt.getFast32());
   1677         return true;
   1678     }
   1679     if (isInvalEvent(evt)) {
   1680         this->inval(nullptr);
   1681         return true;
   1682     }
   1683     int selected = -1;
   1684     if (SkOSMenu::FindListIndex(evt, "Device Type", &selected)) {
   1685         this->setDeviceType((DeviceType)selected);
   1686         return true;
   1687     }
   1688     if (SkOSMenu::FindListIndex(evt, "ColorType", &selected)) {
   1689         fColorConfigIndex = selected;
   1690         sk_sp<SkColorSpace> colorSpace = nullptr;
   1691         switch (gConfig[selected].fColorSpace) {
   1692             case kSRGB_OutputColorSpace:
   1693                 colorSpace = SkColorSpace::MakeSRGB();
   1694                 break;
   1695             case kNarrow_OutputColorSpace:
   1696                 {
   1697                     // NarrowGamut RGB (an artifically smaller than sRGB gamut)
   1698                     SkColorSpacePrimaries primaries ={
   1699                         0.54f, 0.33f,     // Rx, Ry
   1700                         0.33f, 0.50f,     // Gx, Gy
   1701                         0.25f, 0.20f,     // Bx, By
   1702                         0.3127f, 0.3290f, // Wx, Wy
   1703                     };
   1704                     SkMatrix44 narrowGamutRGBMatrix(SkMatrix44::kUninitialized_Constructor);
   1705                     primaries.toXYZD50(&narrowGamutRGBMatrix);
   1706                     colorSpace = SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma,
   1707                                                        narrowGamutRGBMatrix);
   1708                 }
   1709                 break;
   1710             case kMonitor_OutputColorSpace:
   1711                 colorSpace = getMonitorColorSpace();
   1712                 if (!colorSpace) {
   1713                     // Fallback for platforms / machines where we can't get a monitor profile
   1714                     colorSpace = SkColorSpace::MakeSRGB();
   1715                 }
   1716                 break;
   1717             case kLegacy_OutputColorSpace:
   1718             default:
   1719                 // Do nothing
   1720                 break;
   1721         }
   1722         if (kRGBA_F16_SkColorType == gConfig[selected].fColorType) {
   1723             SkASSERT(colorSpace);
   1724             SkASSERT(SkColorSpace_Base::Type::kXYZ == as_CSB(colorSpace)->type());
   1725             SkColorSpace_XYZ* csXYZ = static_cast<SkColorSpace_XYZ*>(colorSpace.get());
   1726             colorSpace = csXYZ->makeLinearGamma();
   1727         }
   1728         this->setDeviceColorType(gConfig[selected].fColorType, colorSpace);
   1729         return true;
   1730     }
   1731     if (SkOSMenu::FindSwitchState(evt, "Slide Show", nullptr)) {
   1732         this->toggleSlideshow();
   1733         return true;
   1734     }
   1735     if (SkOSMenu::FindTriState(evt, "AA", &fAAState) ||
   1736         SkOSMenu::FindTriState(evt, "LCD", &fLCDState) ||
   1737         SkOSMenu::FindListIndex(evt, "FilterQuality", &fFilterQualityIndex) ||
   1738         SkOSMenu::FindTriState(evt, "Subpixel", &fSubpixelState) ||
   1739         SkOSMenu::FindListIndex(evt, "Hinting", &fHintingState) ||
   1740         SkOSMenu::FindSwitchState(evt, "Clip", &fUseClip) ||
   1741         SkOSMenu::FindSwitchState(evt, "Zoomer", &fShowZoomer) ||
   1742         SkOSMenu::FindSwitchState(evt, "Magnify", &fMagnify))
   1743     {
   1744         this->inval(nullptr);
   1745         this->updateTitle();
   1746         return true;
   1747     }
   1748     if (SkOSMenu::FindListIndex(evt, "Pixel Geometry", &fPixelGeometryIndex)) {
   1749         this->setPixelGeometry(fPixelGeometryIndex);
   1750         return true;
   1751     }
   1752     if (SkOSMenu::FindListIndex(evt, "Tiling", &fTilingMode)) {
   1753         if (SampleView::IsSampleView(curr_view(this))) {
   1754             ((SampleView*)curr_view(this))->onTileSizeChanged(this->tileSize());
   1755         }
   1756         this->inval(nullptr);
   1757         this->updateTitle();
   1758         return true;
   1759     }
   1760     if (SkOSMenu::FindSwitchState(evt, "Flip X", nullptr)) {
   1761         fFlipAxis ^= kFlipAxis_X;
   1762         this->updateMatrix();
   1763         return true;
   1764     }
   1765     if (SkOSMenu::FindSwitchState(evt, "Flip Y", nullptr)) {
   1766         fFlipAxis ^= kFlipAxis_Y;
   1767         this->updateMatrix();
   1768         return true;
   1769     }
   1770     if (SkOSMenu::FindAction(evt,"Save to PDF")) {
   1771         this->saveToPdf();
   1772         return true;
   1773     }
   1774     return this->INHERITED::onEvent(evt);
   1775 }
   1776 
   1777 bool SampleWindow::onQuery(SkEvent* query) {
   1778     if (query->isType("get-slide-count")) {
   1779         query->setFast32(fSamples.count());
   1780         return true;
   1781     }
   1782     if (query->isType("get-slide-title")) {
   1783         SkView* view = (*fSamples[query->getFast32()])();
   1784         SkEvent evt(gTitleEvtName);
   1785         if (view->doQuery(&evt)) {
   1786             query->setString("title", evt.findString(gTitleEvtName));
   1787         }
   1788         SkSafeUnref(view);
   1789         return true;
   1790     }
   1791     if (query->isType("use-fast-text")) {
   1792         SkEvent evt(gFastTextEvtName);
   1793         return curr_view(this)->doQuery(&evt);
   1794     }
   1795     if (query->isType("ignore-window-bitmap")) {
   1796         query->setFast32(this->getGrContext() != nullptr);
   1797         return true;
   1798     }
   1799     return this->INHERITED::onQuery(query);
   1800 }
   1801 
   1802 DECLARE_bool(portableFonts);
   1803 
   1804 bool SampleWindow::onHandleChar(SkUnichar uni) {
   1805     {
   1806         SkView* view = curr_view(this);
   1807         if (view) {
   1808             SkEvent evt(gCharEvtName);
   1809             evt.setFast32(uni);
   1810             if (view->doQuery(&evt)) {
   1811                 return true;
   1812             }
   1813         }
   1814     }
   1815 
   1816     int dx = 0xFF;
   1817     int dy = 0xFF;
   1818 
   1819     switch (uni) {
   1820         case '5': dx =  0; dy =  0; break;
   1821         case '8': dx =  0; dy = -1; break;
   1822         case '6': dx =  1; dy =  0; break;
   1823         case '2': dx =  0; dy =  1; break;
   1824         case '4': dx = -1; dy =  0; break;
   1825         case '7': dx = -1; dy = -1; break;
   1826         case '9': dx =  1; dy = -1; break;
   1827         case '3': dx =  1; dy =  1; break;
   1828         case '1': dx = -1; dy =  1; break;
   1829 
   1830         default:
   1831             break;
   1832     }
   1833 
   1834     if (0xFF != dx && 0xFF != dy) {
   1835         this->changeOffset({SkIntToScalar(dx / 32.0f), SkIntToScalar(dy / 32.0f)});
   1836         return true;
   1837     }
   1838 
   1839     switch (uni) {
   1840         case 27:    // ESC
   1841             gAnimTimer.stop();
   1842             if (this->sendAnimatePulse()) {
   1843                 this->inval(nullptr);
   1844             }
   1845             break;
   1846         case ' ':
   1847             gAnimTimer.togglePauseResume();
   1848             if (this->sendAnimatePulse()) {
   1849                 this->inval(nullptr);
   1850             }
   1851             break;
   1852         case 'A':
   1853             if (gSkUseAnalyticAA.load() && !gSkForceAnalyticAA.load()) {
   1854                 gSkForceAnalyticAA = true;
   1855             } else {
   1856                 gSkUseAnalyticAA = !gSkUseAnalyticAA.load();
   1857                 gSkForceAnalyticAA = false;
   1858             }
   1859             this->inval(nullptr);
   1860             this->updateTitle();
   1861             break;
   1862         case 'B':
   1863             post_event_to_sink(new SkEvent("PictFileView::toggleBBox"), curr_view(this));
   1864             // Cannot call updateTitle() synchronously, because the toggleBBox event is still in
   1865             // the queue.
   1866             post_event_to_sink(new SkEvent(gUpdateWindowTitleEvtName), this);
   1867             this->inval(nullptr);
   1868             break;
   1869         case 'D':
   1870             toggleDistanceFieldFonts();
   1871             break;
   1872         case 'E':
   1873             fUseDeferredCanvas = !fUseDeferredCanvas;
   1874             this->inval(nullptr);
   1875             break;
   1876         case 'f':
   1877             // only
   1878             toggleFPS();
   1879             break;
   1880         case 'F':
   1881             FLAGS_portableFonts ^= true;
   1882             this->inval(nullptr);
   1883             break;
   1884         case 'g':
   1885             fRequestGrabImage = true;
   1886             this->inval(nullptr);
   1887             break;
   1888         case 'G':
   1889             gShowGMBounds = !gShowGMBounds;
   1890             post_event_to_sink(GMSampleView::NewShowSizeEvt(gShowGMBounds),
   1891                             curr_view(this));
   1892             this->inval(nullptr);
   1893             break;
   1894         case 'i':
   1895             this->zoomIn();
   1896             break;
   1897         case 'o':
   1898             this->zoomOut();
   1899             break;
   1900         case 'r':
   1901             fRotate = !fRotate;
   1902             this->inval(nullptr);
   1903             this->updateTitle();
   1904             return true;
   1905         case 'k':
   1906             fPerspAnim = !fPerspAnim;
   1907             this->inval(nullptr);
   1908             this->updateTitle();
   1909             return true;
   1910         case 'K':
   1911             fSaveToSKP = true;
   1912             this->inval(nullptr);
   1913             return true;
   1914         case 'M':
   1915             fUsePicture = !fUsePicture;
   1916             this->inval(nullptr);
   1917             this->updateTitle();
   1918             return true;
   1919 #if SK_SUPPORT_GPU
   1920         case 'p':
   1921             {
   1922                 GrContext* grContext = this->getGrContext();
   1923                 if (grContext) {
   1924                     size_t cacheBytes;
   1925                     grContext->getResourceCacheUsage(nullptr, &cacheBytes);
   1926                     grContext->freeGpuResources();
   1927                     SkDebugf("Purged %d bytes from the GPU resource cache.\n", cacheBytes);
   1928                 }
   1929             }
   1930             return true;
   1931 #endif
   1932         default:
   1933             break;
   1934     }
   1935 
   1936     if (fAppMenu->handleKeyEquivalent(uni)|| fSlideMenu->handleKeyEquivalent(uni)) {
   1937         this->onUpdateMenu(fAppMenu);
   1938         this->onUpdateMenu(fSlideMenu);
   1939         return true;
   1940     }
   1941     return this->INHERITED::onHandleChar(uni);
   1942 }
   1943 
   1944 void SampleWindow::setDeviceType(DeviceType type) {
   1945     if (type == fDeviceType)
   1946         return;
   1947 
   1948     fDevManager->tearDownBackend(this);
   1949     fDeviceType = type;
   1950     fDevManager->setUpBackend(this, fBackendOptions);
   1951 
   1952     this->updateTitle();
   1953     this->inval(nullptr);
   1954 }
   1955 
   1956 void SampleWindow::setDeviceColorType(SkColorType ct, sk_sp<SkColorSpace> cs) {
   1957     this->setColorType(ct, std::move(cs));
   1958 
   1959     fDevManager->tearDownBackend(this);
   1960     fDevManager->setUpBackend(this, fBackendOptions);
   1961 
   1962     this->updateTitle();
   1963     this->inval(nullptr);
   1964 }
   1965 
   1966 void SampleWindow::toggleSlideshow() {
   1967     fAnimating = !fAnimating;
   1968     this->postAnimatingEvent();
   1969     this->updateTitle();
   1970 }
   1971 
   1972 void SampleWindow::toggleRendering() {
   1973     this->setDeviceType(cycle_devicetype(fDeviceType));
   1974     this->updateTitle();
   1975     this->inval(nullptr);
   1976 }
   1977 
   1978 void SampleWindow::toggleFPS() {
   1979     fMeasureFPS = !fMeasureFPS;
   1980     this->updateTitle();
   1981     this->inval(nullptr);
   1982 }
   1983 
   1984 void SampleWindow::toggleDistanceFieldFonts() {
   1985     // reset backend
   1986     fDevManager->tearDownBackend(this);
   1987     fDevManager->setUpBackend(this, fBackendOptions);
   1988 
   1989     SkSurfaceProps props = this->getSurfaceProps();
   1990     uint32_t flags = props.flags() ^ SkSurfaceProps::kUseDeviceIndependentFonts_Flag;
   1991     this->setSurfaceProps(SkSurfaceProps(flags, props.pixelGeometry()));
   1992 
   1993     this->updateTitle();
   1994     this->inval(nullptr);
   1995 }
   1996 
   1997 void SampleWindow::setPixelGeometry(int pixelGeometryIndex) {
   1998     // reset backend
   1999     fDevManager->tearDownBackend(this);
   2000     fDevManager->setUpBackend(this, fBackendOptions);
   2001 
   2002     const SkSurfaceProps& oldProps = this->getSurfaceProps();
   2003     SkSurfaceProps newProps(oldProps.flags(), SkSurfaceProps::kLegacyFontHost_InitType);
   2004     if (pixelGeometryIndex > 0) {
   2005         newProps = SkSurfaceProps(oldProps.flags(),
   2006                                   gPixelGeometryStates[pixelGeometryIndex].pixelGeometry);
   2007     }
   2008     this->setSurfaceProps(newProps);
   2009 
   2010     this->updateTitle();
   2011     this->inval(nullptr);
   2012 }
   2013 
   2014 #include "SkDumpCanvas.h"
   2015 
   2016 bool SampleWindow::onHandleKey(SkKey key) {
   2017     {
   2018         SkView* view = curr_view(this);
   2019         if (view) {
   2020             SkEvent evt(gKeyEvtName);
   2021             evt.setFast32(key);
   2022             if (view->doQuery(&evt)) {
   2023                 return true;
   2024             }
   2025         }
   2026     }
   2027 
   2028     int dx = 0xFF;
   2029     int dy = 0xFF;
   2030 
   2031     switch (key) {
   2032         case kRight_SkKey:
   2033             if (this->nextSample()) {
   2034                 return true;
   2035             }
   2036             break;
   2037         case kLeft_SkKey:
   2038             if (this->previousSample()) {
   2039                 return true;
   2040             }
   2041             return true;
   2042         case kUp_SkKey:
   2043             this->changeZoomLevel(1.f / 32.f);
   2044             return true;
   2045         case kDown_SkKey:
   2046             this->changeZoomLevel(-1.f / 32.f);
   2047             return true;
   2048         case kOK_SkKey: {
   2049             SkString title;
   2050             if (curr_title(this, &title)) {
   2051                 writeTitleToPrefs(title.c_str());
   2052             }
   2053             return true;
   2054         }
   2055         case kBack_SkKey:
   2056             this->showOverview();
   2057             return true;
   2058 
   2059         case k5_SkKey: dx =  0; dy =  0; break;
   2060         case k8_SkKey: dx =  0; dy = -1; break;
   2061         case k6_SkKey: dx =  1; dy =  0; break;
   2062         case k2_SkKey: dx =  0; dy =  1; break;
   2063         case k4_SkKey: dx = -1; dy =  0; break;
   2064         case k7_SkKey: dx = -1; dy = -1; break;
   2065         case k9_SkKey: dx =  1; dy = -1; break;
   2066         case k3_SkKey: dx =  1; dy =  1; break;
   2067         case k1_SkKey: dx = -1; dy =  1; break;
   2068 
   2069         default:
   2070             break;
   2071     }
   2072 
   2073     if (0xFF != dx && 0xFF != dy) {
   2074         this->changeOffset({SkIntToScalar(dx / 32.0f), SkIntToScalar(dy / 32.0f)});
   2075         return true;
   2076     }
   2077 
   2078     return this->INHERITED::onHandleKey(key);
   2079 }
   2080 
   2081 ///////////////////////////////////////////////////////////////////////////////
   2082 
   2083 static const char gGestureClickType[] = "GestureClickType";
   2084 
   2085 bool SampleWindow::onDispatchClick(int x, int y, Click::State state,
   2086         void* owner, unsigned modi) {
   2087     if (Click::kMoved_State == state) {
   2088         updatePointer(x, y);
   2089     }
   2090     int w = SkScalarRoundToInt(this->width());
   2091     int h = SkScalarRoundToInt(this->height());
   2092 
   2093     // check for the resize-box
   2094     if (w - x < 16 && h - y < 16) {
   2095         return false;   // let the OS handle the click
   2096     }
   2097     else if (fMagnify) {
   2098         //it's only necessary to update the drawing if there's a click
   2099         this->inval(nullptr);
   2100         return false; //prevent dragging while magnify is enabled
   2101     } else {
   2102         // capture control+option, and trigger debugger
   2103         if ((modi & kControl_SkModifierKey) && (modi & kOption_SkModifierKey)) {
   2104             if (Click::kDown_State == state) {
   2105                 SkEvent evt("debug-hit-test");
   2106                 evt.setS32("debug-hit-test-x", x);
   2107                 evt.setS32("debug-hit-test-y", y);
   2108                 curr_view(this)->doEvent(evt);
   2109             }
   2110             return true;
   2111         } else {
   2112             return this->INHERITED::onDispatchClick(x, y, state, owner, modi);
   2113         }
   2114     }
   2115 }
   2116 
   2117 class GestureClick : public SkView::Click {
   2118 public:
   2119     GestureClick(SkView* target) : SkView::Click(target) {
   2120         this->setType(gGestureClickType);
   2121     }
   2122 
   2123     static bool IsGesture(Click* click) {
   2124         return click->isType(gGestureClickType);
   2125     }
   2126 };
   2127 
   2128 SkView::Click* SampleWindow::onFindClickHandler(SkScalar x, SkScalar y,
   2129                                                 unsigned modi) {
   2130     return new GestureClick(this);
   2131 }
   2132 
   2133 bool SampleWindow::onClick(Click* click) {
   2134     if (GestureClick::IsGesture(click)) {
   2135         float x = static_cast<float>(click->fICurr.fX);
   2136         float y = static_cast<float>(click->fICurr.fY);
   2137 
   2138         switch (click->fState) {
   2139             case SkView::Click::kDown_State:
   2140                 fGesture.touchBegin(click->fOwner, x, y);
   2141                 break;
   2142             case SkView::Click::kMoved_State:
   2143                 fGesture.touchMoved(click->fOwner, x, y);
   2144                 this->updateMatrix();
   2145                 break;
   2146             case SkView::Click::kUp_State:
   2147                 fGesture.touchEnd(click->fOwner);
   2148                 this->updateMatrix();
   2149                 break;
   2150         }
   2151         return true;
   2152     }
   2153     return false;
   2154 }
   2155 
   2156 ///////////////////////////////////////////////////////////////////////////////
   2157 
   2158 void SampleWindow::loadView(SkView* view) {
   2159     SkView::F2BIter iter(this);
   2160     SkView* prev = iter.next();
   2161     if (prev) {
   2162         prev->detachFromParent();
   2163     }
   2164 
   2165     view->setVisibleP(true);
   2166     view->setClipToBounds(false);
   2167     this->attachChildToFront(view)->unref();
   2168     view->setSize(this->width(), this->height());
   2169 
   2170     //repopulate the slide menu when a view is loaded
   2171     fSlideMenu->reset();
   2172 
   2173     this->onUpdateMenu(fSlideMenu);
   2174     this->updateTitle();
   2175 }
   2176 
   2177 static const char* gDeviceTypePrefix[] = {
   2178     "raster: ",
   2179 #if SK_SUPPORT_GPU
   2180     "opengl: ",
   2181 #if SK_ANGLE
   2182     "angle: ",
   2183 #endif // SK_ANGLE
   2184 #endif // SK_SUPPORT_GPU
   2185 };
   2186 static_assert(SK_ARRAY_COUNT(gDeviceTypePrefix) == SampleWindow::kDeviceTypeCnt,
   2187               "array_size_mismatch");
   2188 
   2189 static const char* trystate_str(SkOSMenu::TriState state,
   2190                                 const char trueStr[], const char falseStr[]) {
   2191     if (SkOSMenu::kOnState == state) {
   2192         return trueStr;
   2193     } else if (SkOSMenu::kOffState == state) {
   2194         return falseStr;
   2195     }
   2196     return nullptr;
   2197 }
   2198 
   2199 bool SampleWindow::getRawTitle(SkString* title) {
   2200     return curr_title(this, title);
   2201 }
   2202 
   2203 void SampleWindow::updateTitle() {
   2204     SkString title;
   2205     if (!this->getRawTitle(&title)) {
   2206         title.set("<unknown>");
   2207     }
   2208 
   2209     title.prepend(gDeviceTypePrefix[fDeviceType]);
   2210 
   2211     if (gSkUseAnalyticAA) {
   2212         if (gSkForceAnalyticAA) {
   2213             title.prepend("<FAAA> ");
   2214         } else {
   2215             title.prepend("<AAA> ");
   2216         }
   2217     }
   2218     if (fTilingMode != kNo_Tiling) {
   2219         title.prependf("<T: %s> ", gTilingInfo[fTilingMode].label);
   2220     }
   2221     if (fAnimating) {
   2222         title.prepend("<A> ");
   2223     }
   2224     if (fRotate) {
   2225         title.prepend("<R> ");
   2226     }
   2227     if (fPerspAnim) {
   2228         title.prepend("<K> ");
   2229     }
   2230     if (this->getSurfaceProps().flags() & SkSurfaceProps::kUseDeviceIndependentFonts_Flag) {
   2231         title.prepend("<DIF> ");
   2232     }
   2233     if (fUsePicture) {
   2234         title.prepend("<P> ");
   2235     }
   2236     if (fUseDeferredCanvas) {
   2237         title.prepend("<E> ");
   2238     }
   2239 
   2240     title.prepend(trystate_str(fLCDState, "LCD ", "lcd "));
   2241     title.prepend(trystate_str(fAAState, "AA ", "aa "));
   2242     title.prepend(gFilterQualityStates[fFilterQualityIndex].fLabel);
   2243     title.prepend(trystate_str(fSubpixelState, "S ", "s "));
   2244     title.prepend(fFlipAxis & kFlipAxis_X ? "X " : nullptr);
   2245     title.prepend(fFlipAxis & kFlipAxis_Y ? "Y " : nullptr);
   2246     title.prepend(gHintingStates[fHintingState].label);
   2247     title.prepend(gPixelGeometryStates[fPixelGeometryIndex].label);
   2248 
   2249     if (fOffset.fX || fOffset.fY) {
   2250         title.prependf("(%.2f, %.2f) ", SkScalarToFloat(fOffset.fX), SkScalarToFloat(fOffset.fY));
   2251     }
   2252     if (fZoomLevel) {
   2253         title.prependf("{%.2f} ", SkScalarToFloat(fZoomLevel));
   2254     }
   2255 
   2256     if (fMeasureFPS) {
   2257         title.appendf(" %8.4f ms", fMeasureFPS_Time / (float)FPS_REPEAT_COUNT);
   2258     }
   2259 
   2260 #if SK_SUPPORT_GPU
   2261     if (IsGpuDeviceType(fDeviceType) &&
   2262         fDevManager &&
   2263         fDevManager->numColorSamples() > 0) {
   2264         title.appendf(" [MSAA: %d]",
   2265                        fDevManager->numColorSamples());
   2266     }
   2267 #endif
   2268 
   2269     title.appendf(" %s", gConfig[fColorConfigIndex].fName);
   2270 
   2271     if (fDevManager && fDevManager->getColorBits() > 24) {
   2272         title.appendf(" %d bpc", fDevManager->getColorBits());
   2273     }
   2274 
   2275     this->setTitle(title.c_str());
   2276 }
   2277 
   2278 void SampleWindow::onSizeChange() {
   2279     this->INHERITED::onSizeChange();
   2280 
   2281     SkView::F2BIter iter(this);
   2282     SkView* view = iter.next();
   2283     view->setSize(this->width(), this->height());
   2284 
   2285     // rebuild our clippath
   2286     {
   2287         const SkScalar W = this->width();
   2288         const SkScalar H = this->height();
   2289 
   2290         fClipPath.reset();
   2291 #if 0
   2292         for (SkScalar y = SK_Scalar1; y < H; y += SkIntToScalar(32)) {
   2293             SkRect r;
   2294             r.set(SK_Scalar1, y, SkIntToScalar(30), y + SkIntToScalar(30));
   2295             for (; r.fLeft < W; r.offset(SkIntToScalar(32), 0))
   2296                 fClipPath.addRect(r);
   2297         }
   2298 #else
   2299         SkRect r;
   2300         r.set(0, 0, W, H);
   2301         fClipPath.addRect(r, SkPath::kCCW_Direction);
   2302         r.set(W/4, H/4, W*3/4, H*3/4);
   2303         fClipPath.addRect(r, SkPath::kCW_Direction);
   2304 #endif
   2305     }
   2306 
   2307     fZoomCenterX = SkScalarHalf(this->width());
   2308     fZoomCenterY = SkScalarHalf(this->height());
   2309 
   2310 #ifdef SK_BUILD_FOR_ANDROID
   2311     // FIXME: The first draw after a size change does not work on Android, so
   2312     // we post an invalidate.
   2313     this->postInvalDelay();
   2314 #endif
   2315     this->updateTitle();    // to refresh our config
   2316     fDevManager->windowSizeChanged(this);
   2317 
   2318     if (fTilingMode != kNo_Tiling && SampleView::IsSampleView(view)) {
   2319         ((SampleView*)view)->onTileSizeChanged(this->tileSize());
   2320     }
   2321 }
   2322 
   2323 ///////////////////////////////////////////////////////////////////////////////
   2324 
   2325 template <typename T> void SkTBSort(T array[], int count) {
   2326     for (int i = 1; i < count - 1; i++) {
   2327         bool didSwap = false;
   2328         for (int j = count - 1; j > i; --j) {
   2329             if (array[j] < array[j-1]) {
   2330                 T tmp(array[j-1]);
   2331                 array[j-1] = array[j];
   2332                 array[j] = tmp;
   2333                 didSwap = true;
   2334             }
   2335         }
   2336         if (!didSwap) {
   2337             break;
   2338         }
   2339     }
   2340 
   2341     for (int k = 0; k < count - 1; k++) {
   2342         SkASSERT(!(array[k+1] < array[k]));
   2343     }
   2344 }
   2345 
   2346 #include "SkRandom.h"
   2347 
   2348 static void rand_rect(SkIRect* rect, SkRandom& rand) {
   2349     int bits = 8;
   2350     int shift = 32 - bits;
   2351     rect->set(rand.nextU() >> shift, rand.nextU() >> shift,
   2352               rand.nextU() >> shift, rand.nextU() >> shift);
   2353     rect->sort();
   2354 }
   2355 
   2356 static void dumpRect(const SkIRect& r) {
   2357     SkDebugf(" { %d, %d, %d, %d },\n",
   2358              r.fLeft, r.fTop,
   2359              r.fRight, r.fBottom);
   2360 }
   2361 
   2362 static void test_rects(const SkIRect rect[], int count) {
   2363     SkRegion rgn0, rgn1;
   2364 
   2365     for (int i = 0; i < count; i++) {
   2366         rgn0.op(rect[i], SkRegion::kUnion_Op);
   2367      //   dumpRect(rect[i]);
   2368     }
   2369     rgn1.setRects(rect, count);
   2370 
   2371     if (rgn0 != rgn1) {
   2372         SkDebugf("\n");
   2373         for (int i = 0; i < count; i++) {
   2374             dumpRect(rect[i]);
   2375         }
   2376         SkDebugf("\n");
   2377     }
   2378 }
   2379 
   2380 static void test() {
   2381     size_t i;
   2382 
   2383     const SkIRect r0[] = {
   2384         { 0, 0, 1, 1 },
   2385         { 2, 2, 3, 3 },
   2386     };
   2387     const SkIRect r1[] = {
   2388         { 0, 0, 1, 3 },
   2389         { 1, 1, 2, 2 },
   2390         { 2, 0, 3, 3 },
   2391     };
   2392     const SkIRect r2[] = {
   2393         { 0, 0, 1, 2 },
   2394         { 2, 1, 3, 3 },
   2395         { 4, 0, 5, 1 },
   2396         { 6, 0, 7, 4 },
   2397     };
   2398 
   2399     static const struct {
   2400         const SkIRect* fRects;
   2401         int            fCount;
   2402     } gRecs[] = {
   2403         { r0, SK_ARRAY_COUNT(r0) },
   2404         { r1, SK_ARRAY_COUNT(r1) },
   2405         { r2, SK_ARRAY_COUNT(r2) },
   2406     };
   2407 
   2408     for (i = 0; i < SK_ARRAY_COUNT(gRecs); i++) {
   2409         test_rects(gRecs[i].fRects, gRecs[i].fCount);
   2410     }
   2411 
   2412     SkRandom rand;
   2413     for (i = 0; i < 10000; i++) {
   2414         SkRegion rgn0, rgn1;
   2415 
   2416         const int N = 8;
   2417         SkIRect rect[N];
   2418         for (int j = 0; j < N; j++) {
   2419             rand_rect(&rect[j], rand);
   2420         }
   2421         test_rects(rect, N);
   2422     }
   2423 }
   2424 
   2425 // FIXME: this should be in a header
   2426 SkOSWindow* create_sk_window(void* hwnd, int argc, char** argv);
   2427 SkOSWindow* create_sk_window(void* hwnd, int argc, char** argv) {
   2428     if (false) { // avoid bit rot, suppress warning
   2429         test();
   2430     }
   2431     return new SampleWindow(hwnd, argc, argv, nullptr);
   2432 }
   2433 
   2434 // FIXME: this should be in a header
   2435 void get_preferred_size(int* x, int* y, int* width, int* height);
   2436 void get_preferred_size(int* x, int* y, int* width, int* height) {
   2437     *x = 10;
   2438     *y = 50;
   2439     *width = 640;
   2440     *height = 480;
   2441 }
   2442 
   2443 #ifdef SK_BUILD_FOR_IOS
   2444 #include "SkApplication.h"
   2445 IOS_launch_type set_cmd_line_args(int , char *[], const char* resourceDir) {
   2446     SetResourcePath(resourceDir);
   2447     return kApplication__iOSLaunchType;
   2448 }
   2449 #endif
   2450 
   2451 void application_init() {
   2452 //    setenv("ANDROID_ROOT", "../../../data", 0);
   2453 #ifdef SK_BUILD_FOR_MAC
   2454     setenv("ANDROID_ROOT", "/android/device/data", 0);
   2455 #endif
   2456     SkGraphics::Init();
   2457     SkEvent::Init();
   2458 }
   2459 
   2460 void application_term() {
   2461     SkEvent::Term();
   2462 }
   2463