src/third_party/skia/samplecode/SampleApp.cpp

   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 "SamplePipeControllers.h"
  14 #include "SkCanvas.h"
  15 #include "SkCommandLineFlags.h"
  16 #include "SkData.h"
  17 #include "SkDevice.h"
  18 #include "SkGPipe.h"
  19 #include "SkGraphics.h"
  20 #include "SkImageEncoder.h"
  21 #include "SkOSFile.h"
  22 #include "SkPDFDevice.h"
  23 #include "SkPDFDocument.h"
  24 #include "SkPaint.h"
  25 #include "SkPicture.h"
  26 #include "SkPictureRecorder.h"
  27 #include "SkStream.h"
  28 #include "SkSurface.h"
  29 #include "SkTSort.h"
  30 #include "SkTime.h"
  31 #include "SkTypeface.h"
  32 #include "SkWindow.h"
  33 #include "TransitionView.h"
  34 #include "sk_tool_utils.h"
  35
  36 #if SK_SUPPORT_GPU
  37 #include "gl/GrGLInterface.h"
  38 #include "gl/GrGLUtil.h"
  39 #include "GrRenderTarget.h"
  40 #include "GrContext.h"
  41 #include "SkGpuDevice.h"
  42 #else
  43 class GrContext;
  44 #endif
  45
  46 extern SampleView* CreateSamplePictFileView(const char filename[]);
  47
  48 class PictFileFactory : public SkViewFactory {
  49     SkString fFilename;
  50 public:
  51     PictFileFactory(const SkString& filename) : fFilename(filename) {}
  52     virtual SkView* operator() () const SK_OVERRIDE {
  53         return CreateSamplePictFileView(fFilename.c_str());
  54     }
  55 };
  56
  57 #ifdef SAMPLE_PDF_FILE_VIEWER
  58 extern SampleView* CreateSamplePdfFileViewer(const char filename[]);
  59
  60 class PdfFileViewerFactory : public SkViewFactory {
  61     SkString fFilename;
  62 public:
  63     PdfFileViewerFactory(const SkString& filename) : fFilename(filename) {}
  64     virtual SkView* operator() () const SK_OVERRIDE {
  65         return CreateSamplePdfFileViewer(fFilename.c_str());
  66     }
  67 };
  68 #endif  // SAMPLE_PDF_FILE_VIEWER
  69
  70 #define PIPE_FILEx
  71 #ifdef  PIPE_FILE
  72 #define FILE_PATH "/path/to/drawing.data"
  73 #endif
  74
  75 #define PIPE_NETx
  76 #ifdef  PIPE_NET
  77 #include "SkSockets.h"
  78 SkTCPServer gServer;
  79 #endif
  80
  81 #define USE_ARROWS_FOR_ZOOM true
  82
  83 #if SK_ANGLE
  84 //#define DEFAULT_TO_ANGLE 1
  85 #else
  86 #define DEFAULT_TO_GPU 0 // if 1 default rendering is on GPU
  87 #endif
  88
  89 #define ANIMATING_EVENTTYPE "nextSample"
  90 #define ANIMATING_DELAY     250
  91
  92 #ifdef SK_DEBUG
  93     #define FPS_REPEAT_MULTIPLIER   1
  94 #else
  95     #define FPS_REPEAT_MULTIPLIER   10
  96 #endif
  97 #define FPS_REPEAT_COUNT    (10 * FPS_REPEAT_MULTIPLIER)
  98
  99 static SampleWindow* gSampleWindow;
 100
 101 static bool gShowGMBounds;
 102
 103 static void post_event_to_sink(SkEvent* evt, SkEventSink* sink) {
 104     evt->setTargetID(sink->getSinkID())->post();
 105 }
 106
 107 ///////////////////////////////////////////////////////////////////////////////
 108
 109 static const char* skip_until(const char* str, const char* skip) {
 110     if (!str) {
 111         return NULL;
 112     }
 113     return strstr(str, skip);
 114 }
 115
 116 static const char* skip_past(const char* str, const char* skip) {
 117     const char* found = skip_until(str, skip);
 118     if (!found) {
 119         return NULL;
 120     }
 121     return found + strlen(skip);
 122 }
 123
 124 static const char* gPrefFileName = "sampleapp_prefs.txt";
 125
 126 static bool readTitleFromPrefs(SkString* title) {
 127     SkFILEStream stream(gPrefFileName);
 128     if (!stream.isValid()) {
 129         return false;
 130     }
 131
 132     size_t len = stream.getLength();
 133     SkString data(len);
 134     stream.read(data.writable_str(), len);
 135     const char* s = data.c_str();
 136
 137     s = skip_past(s, "curr-slide-title");
 138     s = skip_past(s, "=");
 139     s = skip_past(s, "\"");
 140     const char* stop = skip_until(s, "\"");
 141     if (stop > s) {
 142         title->set(s, stop - s);
 143         return true;
 144     }
 145     return false;
 146 }
 147
 148 static void writeTitleToPrefs(const char* title) {
 149     SkFILEWStream stream(gPrefFileName);
 150     SkString data;
 151     data.printf("curr-slide-title = \"%s\"\n", title);
 152     stream.write(data.c_str(), data.size());
 153 }
 154
 155 ///////////////////////////////////////////////////////////////////////////////
 156
 157 class SampleWindow::DefaultDeviceManager : public SampleWindow::DeviceManager {
 158 public:
 159
 160     DefaultDeviceManager() {
 161 #if SK_SUPPORT_GPU
 162         fCurContext = NULL;
 163         fCurIntf = NULL;
 164         fCurRenderTarget = NULL;
 165         fMSAASampleCount = 0;
 166 #endif
 167         fBackend = kNone_BackEndType;
 168     }
 169
 170     virtual ~DefaultDeviceManager() {
 171 #if SK_SUPPORT_GPU
 172         SkSafeUnref(fCurContext);
 173         SkSafeUnref(fCurIntf);
 174         SkSafeUnref(fCurRenderTarget);
 175 #endif
 176     }
 177
 178     virtual void setUpBackend(SampleWindow* win, int msaaSampleCount) {
 179         SkASSERT(kNone_BackEndType == fBackend);
 180
 181         fBackend = kNone_BackEndType;
 182
 183 #if SK_SUPPORT_GPU
 184         switch (win->getDeviceType()) {
 185             case kRaster_DeviceType:
 186                 // fallthrough
 187             case kPicture_DeviceType:
 188                 // fallthrough
 189             case kGPU_DeviceType:
 190                 // fallthrough
 191             case kNullGPU_DeviceType:
 192                 // all these guys use the native backend
 193                 fBackend = kNativeGL_BackEndType;
 194                 break;
 195 #if SK_ANGLE
 196             case kANGLE_DeviceType:
 197                 // ANGLE is really the only odd man out
 198                 fBackend = kANGLE_BackEndType;
 199                 break;
 200 #endif // SK_ANGLE
 201             default:
 202                 SkASSERT(false);
 203                 break;
 204         }
 205         AttachmentInfo attachmentInfo;
 206         bool result = win->attach(fBackend, msaaSampleCount, &attachmentInfo);
 207         if (!result) {
 208             SkDebugf("Failed to initialize GL");
 209             return;
 210         }
 211         fMSAASampleCount = msaaSampleCount;
 212
 213         SkASSERT(NULL == fCurIntf);
 214         SkAutoTUnref<const GrGLInterface> glInterface;
 215         switch (win->getDeviceType()) {
 216             case kRaster_DeviceType:
 217                 // fallthrough
 218             case kPicture_DeviceType:
 219                 // fallthrough
 220             case kGPU_DeviceType:
 221                 // all these guys use the native interface
 222                 glInterface.reset(GrGLCreateNativeInterface());
 223                 break;
 224 #if SK_ANGLE
 225             case kANGLE_DeviceType:
 226                 glInterface.reset(GrGLCreateANGLEInterface());
 227                 break;
 228 #endif // SK_ANGLE
 229             case kNullGPU_DeviceType:
 230                 glInterface.reset(GrGLCreateNullInterface());
 231                 break;
 232             default:
 233                 SkASSERT(false);
 234                 break;
 235         }
 236
 237         // Currently SampleApp does not use NVPR. TODO: Provide an NVPR device type that is skipped
 238         // when the driver doesn't support NVPR.
 239         fCurIntf = GrGLInterfaceRemoveNVPR(glInterface.get());
 240
 241         SkASSERT(NULL == fCurContext);
 242         fCurContext = GrContext::Create(kOpenGL_GrBackend, (GrBackendContext) fCurIntf);
 243
 244         if (NULL == fCurContext || NULL == fCurIntf) {
 245             // We need some context and interface to see results
 246             SkSafeUnref(fCurContext);
 247             SkSafeUnref(fCurIntf);
 248             fCurContext = NULL;
 249             fCurIntf = NULL;
 250             SkDebugf("Failed to setup 3D");
 251
 252             win->detach();
 253         }
 254 #endif // SK_SUPPORT_GPU
 255         // call windowSizeChanged to create the render target
 256         this->windowSizeChanged(win);
 257     }
 258
 259     virtual void tearDownBackend(SampleWindow *win) {
 260 #if SK_SUPPORT_GPU
 261         SkSafeUnref(fCurContext);
 262         fCurContext = NULL;
 263
 264         SkSafeUnref(fCurIntf);
 265         fCurIntf = NULL;
 266
 267         SkSafeUnref(fCurRenderTarget);
 268         fCurRenderTarget = NULL;
 269 #endif
 270         win->detach();
 271         fBackend = kNone_BackEndType;
 272     }
 273
 274     virtual SkSurface* createSurface(SampleWindow::DeviceType dType,
 275                                      SampleWindow* win) SK_OVERRIDE {
 276 #if SK_SUPPORT_GPU
 277         if (IsGpuDeviceType(dType) && fCurContext) {
 278             return SkSurface::NewRenderTargetDirect(fCurRenderTarget);
 279         }
 280 #endif
 281         return NULL;
 282     }
 283
 284     virtual void publishCanvas(SampleWindow::DeviceType dType,
 285                                SkCanvas* canvas,
 286                                SampleWindow* win) {
 287 #if SK_SUPPORT_GPU
 288         if (fCurContext) {
 289             // in case we have queued drawing calls
 290             fCurContext->flush();
 291
 292             if (!IsGpuDeviceType(dType)) {
 293                 // need to send the raster bits to the (gpu) window
 294                 fCurContext->setRenderTarget(fCurRenderTarget);
 295                 const SkBitmap& bm = win->getBitmap();
 296                 fCurRenderTarget->writePixels(0, 0, bm.width(), bm.height(),
 297                                              SkImageInfo2GrPixelConfig(bm.colorType(),
 298                                                                        bm.alphaType()),
 299                                              bm.getPixels(),
 300                                              bm.rowBytes());
 301             }
 302         }
 303 #endif
 304
 305         win->present();
 306     }
 307
 308     virtual void windowSizeChanged(SampleWindow* win) {
 309 #if SK_SUPPORT_GPU
 310         if (fCurContext) {
 311             AttachmentInfo attachmentInfo;
 312             win->attach(fBackend, fMSAASampleCount, &attachmentInfo);
 313
 314             GrBackendRenderTargetDesc desc;
 315             desc.fWidth = SkScalarRoundToInt(win->width());
 316             desc.fHeight = SkScalarRoundToInt(win->height());
 317             desc.fConfig = kSkia8888_GrPixelConfig;
 318             desc.fOrigin = kBottomLeft_GrSurfaceOrigin;
 319             desc.fSampleCnt = attachmentInfo.fSampleCount;
 320             desc.fStencilBits = attachmentInfo.fStencilBits;
 321             GrGLint buffer;
 322             GR_GL_GetIntegerv(fCurIntf, GR_GL_FRAMEBUFFER_BINDING, &buffer);
 323             desc.fRenderTargetHandle = buffer;
 324
 325             SkSafeUnref(fCurRenderTarget);
 326             fCurRenderTarget = fCurContext->wrapBackendRenderTarget(desc);
 327         }
 328 #endif
 329     }
 330
 331     virtual GrContext* getGrContext() {
 332 #if SK_SUPPORT_GPU
 333         return fCurContext;
 334 #else
 335         return NULL;
 336 #endif
 337     }
 338
 339     virtual GrRenderTarget* getGrRenderTarget() SK_OVERRIDE {
 340 #if SK_SUPPORT_GPU
 341         return fCurRenderTarget;
 342 #else
 343         return NULL;
 344 #endif
 345     }
 346
 347 private:
 348
 349 #if SK_SUPPORT_GPU
 350     GrContext*              fCurContext;
 351     const GrGLInterface*    fCurIntf;
 352     GrRenderTarget*         fCurRenderTarget;
 353     int fMSAASampleCount;
 354 #endif
 355
 356     SkOSWindow::SkBackEndTypes fBackend;
 357
 358     typedef SampleWindow::DeviceManager INHERITED;
 359 };
 360
 361 ///////////////
 362 static const char view_inval_msg[] = "view-inval-msg";
 363
 364 void SampleWindow::postInvalDelay() {
 365     (new SkEvent(view_inval_msg, this->getSinkID()))->postDelay(1);
 366 }
 367
 368 static bool isInvalEvent(const SkEvent& evt) {
 369     return evt.isType(view_inval_msg);
 370 }
 371 //////////////////
 372
 373 SkFuncViewFactory::SkFuncViewFactory(SkViewCreateFunc func)
 374     : fCreateFunc(func) {
 375 }
 376
 377 SkView* SkFuncViewFactory::operator() () const {
 378     return (*fCreateFunc)();
 379 }
 380
 381 #include "GMSampleView.h"
 382
 383 SkGMSampleViewFactory::SkGMSampleViewFactory(GMFactoryFunc func)
 384     : fFunc(func) {
 385 }
 386
 387 SkView* SkGMSampleViewFactory::operator() () const {
 388     skiagm::GM* gm = fFunc(NULL);
 389     gm->setMode(skiagm::GM::kSample_Mode);
 390     return new GMSampleView(gm);
 391 }
 392
 393 SkViewRegister* SkViewRegister::gHead;
 394 SkViewRegister::SkViewRegister(SkViewFactory* fact) : fFact(fact) {
 395     fFact->ref();
 396     fChain = gHead;
 397     gHead = this;
 398 }
 399
 400 SkViewRegister::SkViewRegister(SkViewCreateFunc func) {
 401     fFact = new SkFuncViewFactory(func);
 402     fChain = gHead;
 403     gHead = this;
 404 }
 405
 406 SkViewRegister::SkViewRegister(GMFactoryFunc func) {
 407     fFact = new SkGMSampleViewFactory(func);
 408     fChain = gHead;
 409     gHead = this;
 410 }
 411
 412 class AutoUnrefArray {
 413 public:
 414     AutoUnrefArray() {}
 415     ~AutoUnrefArray() {
 416         int count = fObjs.count();
 417         for (int i = 0; i < count; ++i) {
 418             fObjs[i]->unref();
 419         }
 420     }
 421     SkRefCnt*& push_back() { return *fObjs.append(); }
 422
 423 private:
 424     SkTDArray<SkRefCnt*> fObjs;
 425 };
 426
 427 // registers GMs as Samples
 428 // This can't be performed during static initialization because it could be
 429 // run before GMRegistry has been fully built.
 430 static void SkGMRegistyToSampleRegistry() {
 431     static bool gOnce;
 432     static AutoUnrefArray fRegisters;
 433
 434     if (!gOnce) {
 435         const skiagm::GMRegistry* gmreg = skiagm::GMRegistry::Head();
 436         while (gmreg) {
 437             fRegisters.push_back() = new SkViewRegister(gmreg->factory());
 438             gmreg = gmreg->next();
 439         }
 440         gOnce = true;
 441     }
 442 }
 443
 444 //////////////////////////////////////////////////////////////////////////////
 445
 446 enum FlipAxisEnum {
 447     kFlipAxis_X = (1 << 0),
 448     kFlipAxis_Y = (1 << 1)
 449 };
 450
 451 #include "SkDrawFilter.h"
 452
 453 struct HintingState {
 454     SkPaint::Hinting hinting;
 455     const char* name;
 456     const char* label;
 457 };
 458 static HintingState gHintingStates[] = {
 459     {SkPaint::kNo_Hinting, "Mixed", NULL },
 460     {SkPaint::kNo_Hinting, "None", "H0 " },
 461     {SkPaint::kSlight_Hinting, "Slight", "Hs " },
 462     {SkPaint::kNormal_Hinting, "Normal", "Hn " },
 463     {SkPaint::kFull_Hinting, "Full", "Hf " },
 464 };
 465
 466 struct FilterLevelState {
 467     SkPaint::FilterLevel    fLevel;
 468     const char*             fName;
 469     const char*             fLabel;
 470 };
 471 static FilterLevelState gFilterLevelStates[] = {
 472     { SkPaint::kNone_FilterLevel,   "Mixed",    NULL    },
 473     { SkPaint::kNone_FilterLevel,   "None",     "F0 "   },
 474     { SkPaint::kLow_FilterLevel,    "Low",      "F1 "   },
 475     { SkPaint::kMedium_FilterLevel, "Medium",   "F2 "   },
 476     { SkPaint::kHigh_FilterLevel,   "High",     "F3 "   },
 477 };
 478
 479 class FlagsDrawFilter : public SkDrawFilter {
 480 public:
 481     FlagsDrawFilter(SkOSMenu::TriState lcd, SkOSMenu::TriState aa,
 482                     SkOSMenu::TriState subpixel, int hinting, int filterlevel)
 483         : fLCDState(lcd)
 484         , fAAState(aa)
 485         , fSubpixelState(subpixel)
 486         , fHintingState(hinting)
 487         , fFilterLevelIndex(filterlevel)
 488     {
 489         SkASSERT((unsigned)filterlevel < SK_ARRAY_COUNT(gFilterLevelStates));
 490     }
 491
 492     virtual bool filter(SkPaint* paint, Type t) {
 493         if (kText_Type == t && SkOSMenu::kMixedState != fLCDState) {
 494             paint->setLCDRenderText(SkOSMenu::kOnState == fLCDState);
 495         }
 496         if (SkOSMenu::kMixedState != fAAState) {
 497             paint->setAntiAlias(SkOSMenu::kOnState == fAAState);
 498         }
 499         if (0 != fFilterLevelIndex) {
 500             paint->setFilterLevel(gFilterLevelStates[fFilterLevelIndex].fLevel);
 501         }
 502         if (SkOSMenu::kMixedState != fSubpixelState) {
 503             paint->setSubpixelText(SkOSMenu::kOnState == fSubpixelState);
 504         }
 505         if (0 != fHintingState && fHintingState < (int)SK_ARRAY_COUNT(gHintingStates)) {
 506             paint->setHinting(gHintingStates[fHintingState].hinting);
 507         }
 508         return true;
 509     }
 510
 511 private:
 512     SkOSMenu::TriState  fLCDState;
 513     SkOSMenu::TriState  fAAState;
 514     SkOSMenu::TriState  fSubpixelState;
 515     int fHintingState;
 516     int fFilterLevelIndex;
 517 };
 518
 519 //////////////////////////////////////////////////////////////////////////////
 520
 521 #define MAX_ZOOM_LEVEL  8
 522 #define MIN_ZOOM_LEVEL  -8
 523
 524 static const char gCharEvtName[] = "SampleCode_Char_Event";
 525 static const char gKeyEvtName[] = "SampleCode_Key_Event";
 526 static const char gTitleEvtName[] = "SampleCode_Title_Event";
 527 static const char gPrefSizeEvtName[] = "SampleCode_PrefSize_Event";
 528 static const char gFastTextEvtName[] = "SampleCode_FastText_Event";
 529 static const char gUpdateWindowTitleEvtName[] = "SampleCode_UpdateWindowTitle";
 530
 531 bool SampleCode::CharQ(const SkEvent& evt, SkUnichar* outUni) {
 532     if (evt.isType(gCharEvtName, sizeof(gCharEvtName) - 1)) {
 533         if (outUni) {
 534             *outUni = evt.getFast32();
 535         }
 536         return true;
 537     }
 538     return false;
 539 }
 540
 541 bool SampleCode::KeyQ(const SkEvent& evt, SkKey* outKey) {
 542     if (evt.isType(gKeyEvtName, sizeof(gKeyEvtName) - 1)) {
 543         if (outKey) {
 544             *outKey = (SkKey)evt.getFast32();
 545         }
 546         return true;
 547     }
 548     return false;
 549 }
 550
 551 bool SampleCode::TitleQ(const SkEvent& evt) {
 552     return evt.isType(gTitleEvtName, sizeof(gTitleEvtName) - 1);
 553 }
 554
 555 void SampleCode::TitleR(SkEvent* evt, const char title[]) {
 556     SkASSERT(evt && TitleQ(*evt));
 557     evt->setString(gTitleEvtName, title);
 558 }
 559
 560 bool SampleCode::RequestTitle(SkView* view, SkString* title) {
 561     SkEvent evt(gTitleEvtName);
 562     if (view->doQuery(&evt)) {
 563         title->set(evt.findString(gTitleEvtName));
 564         return true;
 565     }
 566     return false;
 567 }
 568
 569 bool SampleCode::PrefSizeQ(const SkEvent& evt) {
 570     return evt.isType(gPrefSizeEvtName, sizeof(gPrefSizeEvtName) - 1);
 571 }
 572
 573 void SampleCode::PrefSizeR(SkEvent* evt, SkScalar width, SkScalar height) {
 574     SkASSERT(evt && PrefSizeQ(*evt));
 575     SkScalar size[2];
 576     size[0] = width;
 577     size[1] = height;
 578     evt->setScalars(gPrefSizeEvtName, 2, size);
 579 }
 580
 581 bool SampleCode::FastTextQ(const SkEvent& evt) {
 582     return evt.isType(gFastTextEvtName, sizeof(gFastTextEvtName) - 1);
 583 }
 584
 585 ///////////////////////////////////////////////////////////////////////////////
 586
 587 static SkMSec gAnimTime;
 588 static SkMSec gAnimTimePrev;
 589
 590 SkMSec SampleCode::GetAnimTime() { return gAnimTime; }
 591 SkMSec SampleCode::GetAnimTimeDelta() { return gAnimTime - gAnimTimePrev; }
 592 SkScalar SampleCode::GetAnimSecondsDelta() {
 593     return SkDoubleToScalar(GetAnimTimeDelta() / 1000.0);
 594 }
 595
 596 SkScalar SampleCode::GetAnimScalar(SkScalar speed, SkScalar period) {
 597     // since gAnimTime can be up to 32 bits, we can't convert it to a float
 598     // or we'll lose the low bits. Hence we use doubles for the intermediate
 599     // calculations
 600     double seconds = (double)gAnimTime / 1000.0;
 601     double value = SkScalarToDouble(speed) * seconds;
 602     if (period) {
 603         value = ::fmod(value, SkScalarToDouble(period));
 604     }
 605     return SkDoubleToScalar(value);
 606 }
 607
 608 SkScalar SampleCode::GetAnimSinScalar(SkScalar amplitude,
 609                                       SkScalar periodInSec,
 610                                       SkScalar phaseInSec) {
 611     if (!periodInSec) {
 612         return 0;
 613     }
 614     double t = (double)gAnimTime / 1000.0 + phaseInSec;
 615     t *= SkScalarToFloat(2 * SK_ScalarPI) / periodInSec;
 616     amplitude = SK_ScalarHalf * amplitude;
 617     return SkScalarMul(amplitude, SkDoubleToScalar(sin(t))) + amplitude;
 618 }
 619
 620 enum TilingMode {
 621     kNo_Tiling,
 622     kAbs_128x128_Tiling,
 623     kAbs_256x256_Tiling,
 624     kRel_4x4_Tiling,
 625     kRel_1x16_Tiling,
 626     kRel_16x1_Tiling,
 627
 628     kLast_TilingMode_Enum
 629 };
 630
 631 struct TilingInfo {
 632     const char* label;
 633     SkScalar    w, h;
 634 };
 635
 636 static const struct TilingInfo gTilingInfo[] = {
 637     { "No tiling", SK_Scalar1        , SK_Scalar1         }, // kNo_Tiling
 638     { "128x128"  , SkIntToScalar(128), SkIntToScalar(128) }, // kAbs_128x128_Tiling
 639     { "256x256"  , SkIntToScalar(256), SkIntToScalar(256) }, // kAbs_256x256_Tiling
 640     { "1/4x1/4"  , SK_Scalar1 / 4    , SK_Scalar1 / 4     }, // kRel_4x4_Tiling
 641     { "1/1x1/16" , SK_Scalar1        , SK_Scalar1 / 16    }, // kRel_1x16_Tiling
 642     { "1/16x1/1" , SK_Scalar1 / 16   , SK_Scalar1         }, // kRel_16x1_Tiling
 643 };
 644 SK_COMPILE_ASSERT((SK_ARRAY_COUNT(gTilingInfo) == kLast_TilingMode_Enum),
 645                   Incomplete_tiling_labels);
 646
 647 SkSize SampleWindow::tileSize() const {
 648     SkASSERT((TilingMode)fTilingMode < kLast_TilingMode_Enum);
 649     const struct TilingInfo* info = gTilingInfo + fTilingMode;
 650     return SkSize::Make(info->w > SK_Scalar1 ? info->w : this->width() * info->w,
 651                         info->h > SK_Scalar1 ? info->h : this->height() * info->h);
 652 }
 653 //////////////////////////////////////////////////////////////////////////////
 654
 655 static SkView* curr_view(SkWindow* wind) {
 656     SkView::F2BIter iter(wind);
 657     return iter.next();
 658 }
 659
 660 static bool curr_title(SkWindow* wind, SkString* title) {
 661     SkView* view = curr_view(wind);
 662     if (view) {
 663         SkEvent evt(gTitleEvtName);
 664         if (view->doQuery(&evt)) {
 665             title->set(evt.findString(gTitleEvtName));
 666             return true;
 667         }
 668     }
 669     return false;
 670 }
 671
 672 void SampleWindow::setZoomCenter(float x, float y)
 673 {
 674     fZoomCenterX = x;
 675     fZoomCenterY = y;
 676 }
 677
 678 bool SampleWindow::zoomIn()
 679 {
 680     // Arbitrarily decided
 681     if (fFatBitsScale == 25) return false;
 682     fFatBitsScale++;
 683     this->inval(NULL);
 684     return true;
 685 }
 686
 687 bool SampleWindow::zoomOut()
 688 {
 689     if (fFatBitsScale == 1) return false;
 690     fFatBitsScale--;
 691     this->inval(NULL);
 692     return true;
 693 }
 694
 695 void SampleWindow::updatePointer(int x, int y)
 696 {
 697     fMouseX = x;
 698     fMouseY = y;
 699     if (fShowZoomer) {
 700         this->inval(NULL);
 701     }
 702 }
 703
 704 static inline SampleWindow::DeviceType cycle_devicetype(SampleWindow::DeviceType ct) {
 705     static const SampleWindow::DeviceType gCT[] = {
 706         SampleWindow::kPicture_DeviceType,
 707 #if SK_SUPPORT_GPU
 708         SampleWindow::kGPU_DeviceType,
 709 #if SK_ANGLE
 710         SampleWindow::kANGLE_DeviceType,
 711 #endif // SK_ANGLE
 712         SampleWindow::kRaster_DeviceType, // skip the null gpu device in normal cycling
 713 #endif // SK_SUPPORT_GPU
 714         SampleWindow::kRaster_DeviceType
 715     };
 716     SK_COMPILE_ASSERT(SK_ARRAY_COUNT(gCT) == SampleWindow::kDeviceTypeCnt, array_size_mismatch);
 717     return gCT[ct];
 718 }
 719
 720 static SkString getSampleTitle(const SkViewFactory* sampleFactory) {
 721     SkView* view = (*sampleFactory)();
 722     SkString title;
 723     SampleCode::RequestTitle(view, &title);
 724     view->unref();
 725     return title;
 726 }
 727
 728 static bool compareSampleTitle(const SkViewFactory* first, const SkViewFactory* second) {
 729     return strcmp(getSampleTitle(first).c_str(), getSampleTitle(second).c_str()) < 0;
 730 }
 731
 732 DEFINE_string(slide, "", "Start on this sample.");
 733 DEFINE_int32(msaa, 0, "Request multisampling with this count.");
 734 DEFINE_string(pictureDir, "", "Read pictures from here.");
 735 DEFINE_string(picture, "", "Path to single picture.");
 736 DEFINE_bool(sort, false, "Sort samples by title.");
 737 DEFINE_bool(list, false, "List samples?");
 738 #ifdef SAMPLE_PDF_FILE_VIEWER
 739 DEFINE_string(pdfPath, "", "Path to direcotry of pdf files.");
 740 #endif
 741
 742 SampleWindow::SampleWindow(void* hwnd, int argc, char** argv, DeviceManager* devManager)
 743     : INHERITED(hwnd)
 744     , fDevManager(NULL) {
 745
 746     SkCommandLineFlags::Parse(argc, argv);
 747
 748     fCurrIndex = -1;
 749
 750     if (!FLAGS_pictureDir.isEmpty()) {
 751         SkOSFile::Iter iter(FLAGS_pictureDir[0], "skp");
 752         SkString filename;
 753         while (iter.next(&filename)) {
 754             *fSamples.append() = new PictFileFactory(
 755                 SkOSPath::Join(FLAGS_pictureDir[0], filename.c_str()));
 756         }
 757     }
 758     if (!FLAGS_picture.isEmpty()) {
 759         SkString path(FLAGS_picture[0]);
 760         fCurrIndex = fSamples.count();
 761         *fSamples.append() = new PictFileFactory(path);
 762     }
 763 #ifdef SAMPLE_PDF_FILE_VIEWER
 764     if (!FLAGS_pdfPath.isEmpty()) {
 765         SkOSFile::Iter iter(FLAGS_pdfPath[0], "pdf");
 766         SkString filename;
 767         while (iter.next(&filename)) {
 768             *fSamples.append() = new PdfFileViewerFactory(
 769                 SkOSPath::Join(FLAGS_pictureDir[0], filename.c_str()));
 770         }
 771     }
 772 #endif
 773     SkGMRegistyToSampleRegistry();
 774     {
 775         const SkViewRegister* reg = SkViewRegister::Head();
 776         while (reg) {
 777             *fSamples.append() = reg->factory();
 778             reg = reg->next();
 779         }
 780     }
 781
 782     if (FLAGS_sort) {
 783         // Sort samples, so foo.skp and foo.pdf are consecutive and we can quickly spot where
 784         // skp -> pdf -> png fails.
 785         SkTQSort(fSamples.begin(), fSamples.end() ? fSamples.end() - 1 : NULL, compareSampleTitle);
 786     }
 787
 788     if (!FLAGS_slide.isEmpty()) {
 789         fCurrIndex = findByTitle(FLAGS_slide[0]);
 790         if (fCurrIndex < 0) {
 791             fprintf(stderr, "Unknown sample \"%s\"\n", FLAGS_slide[0]);
 792             listTitles();
 793         }
 794     }
 795
 796     fMSAASampleCount = FLAGS_msaa;
 797
 798     if (FLAGS_list) {
 799         listTitles();
 800     }
 801
 802     if (fCurrIndex < 0) {
 803         SkString title;
 804         if (readTitleFromPrefs(&title)) {
 805             fCurrIndex = findByTitle(title.c_str());
 806         }
 807     }
 808
 809     if (fCurrIndex < 0) {
 810         fCurrIndex = 0;
 811     }
 812
 813     gSampleWindow = this;
 814
 815 #ifdef  PIPE_FILE
 816     //Clear existing file or create file if it doesn't exist
 817     FILE* f = fopen(FILE_PATH, "wb");
 818     fclose(f);
 819 #endif
 820
 821     fDeviceType = kRaster_DeviceType;
 822
 823 #if DEFAULT_TO_GPU
 824     fDeviceType = kGPU_DeviceType;
 825 #endif
 826 #if SK_ANGLE && DEFAULT_TO_ANGLE
 827     fDeviceType = kANGLE_DeviceType;
 828 #endif
 829
 830     fUseClip = false;
 831     fNClip = false;
 832     fAnimating = false;
 833     fRotate = false;
 834     fRotateAnimTime = 0;
 835     fPerspAnim = false;
 836     fPerspAnimTime = 0;
 837     fRequestGrabImage = false;
 838     fPipeState = SkOSMenu::kOffState;
 839     fTilingMode = kNo_Tiling;
 840     fMeasureFPS = false;
 841     fLCDState = SkOSMenu::kMixedState;
 842     fAAState = SkOSMenu::kMixedState;
 843     fSubpixelState = SkOSMenu::kMixedState;
 844     fHintingState = 0;
 845     fFilterLevelIndex = 0;
 846     fFlipAxis = 0;
 847     fScrollTestX = fScrollTestY = 0;
 848
 849     fMouseX = fMouseY = 0;
 850     fFatBitsScale = 8;
 851     fTypeface = SkTypeface::CreateFromTypeface(NULL, SkTypeface::kBold);
 852     fShowZoomer = false;
 853
 854     fZoomLevel = 0;
 855     fZoomScale = SK_Scalar1;
 856
 857     fMagnify = false;
 858
 859     fSaveToPdf = false;
 860     fPdfCanvas = NULL;
 861
 862     fTransitionNext = 6;
 863     fTransitionPrev = 2;
 864
 865     int sinkID = this->getSinkID();
 866     fAppMenu = new SkOSMenu;
 867     fAppMenu->setTitle("Global Settings");
 868     int itemID;
 869
 870     itemID =fAppMenu->appendList("Device Type", "Device Type", sinkID, 0,
 871                                 "Raster", "Picture", "OpenGL",
 872 #if SK_ANGLE
 873                                 "ANGLE",
 874 #endif
 875                                 NULL);
 876     fAppMenu->assignKeyEquivalentToItem(itemID, 'd');
 877     itemID = fAppMenu->appendTriState("AA", "AA", sinkID, fAAState);
 878     fAppMenu->assignKeyEquivalentToItem(itemID, 'b');
 879     itemID = fAppMenu->appendTriState("LCD", "LCD", sinkID, fLCDState);
 880     fAppMenu->assignKeyEquivalentToItem(itemID, 'l');
 881     itemID = fAppMenu->appendList("FilterLevel", "FilterLevel", sinkID, fFilterLevelIndex,
 882                                   gFilterLevelStates[0].fName,
 883                                   gFilterLevelStates[1].fName,
 884                                   gFilterLevelStates[2].fName,
 885                                   gFilterLevelStates[3].fName,
 886                                   gFilterLevelStates[4].fName,
 887                                   NULL);
 888     fAppMenu->assignKeyEquivalentToItem(itemID, 'n');
 889     itemID = fAppMenu->appendTriState("Subpixel", "Subpixel", sinkID, fSubpixelState);
 890     fAppMenu->assignKeyEquivalentToItem(itemID, 's');
 891     itemID = fAppMenu->appendList("Hinting", "Hinting", sinkID, fHintingState,
 892                                   gHintingStates[0].name,
 893                                   gHintingStates[1].name,
 894                                   gHintingStates[2].name,
 895                                   gHintingStates[3].name,
 896                                   gHintingStates[4].name,
 897                                   NULL);
 898     fAppMenu->assignKeyEquivalentToItem(itemID, 'h');
 899
 900     fUsePipeMenuItemID = fAppMenu->appendTriState("Pipe", "Pipe" , sinkID,
 901                                                   fPipeState);
 902     fAppMenu->assignKeyEquivalentToItem(fUsePipeMenuItemID, 'P');
 903
 904     itemID =fAppMenu->appendList("Tiling", "Tiling", sinkID, fTilingMode,
 905                                  gTilingInfo[kNo_Tiling].label,
 906                                  gTilingInfo[kAbs_128x128_Tiling].label,
 907                                  gTilingInfo[kAbs_256x256_Tiling].label,
 908                                  gTilingInfo[kRel_4x4_Tiling].label,
 909                                  gTilingInfo[kRel_1x16_Tiling].label,
 910                                  gTilingInfo[kRel_16x1_Tiling].label,
 911                                  NULL);
 912     fAppMenu->assignKeyEquivalentToItem(itemID, 't');
 913
 914     itemID = fAppMenu->appendSwitch("Slide Show", "Slide Show" , sinkID, false);
 915     fAppMenu->assignKeyEquivalentToItem(itemID, 'a');
 916     itemID = fAppMenu->appendSwitch("Clip", "Clip" , sinkID, fUseClip);
 917     fAppMenu->assignKeyEquivalentToItem(itemID, 'c');
 918     itemID = fAppMenu->appendSwitch("Flip X", "Flip X" , sinkID, false);
 919     fAppMenu->assignKeyEquivalentToItem(itemID, 'x');
 920     itemID = fAppMenu->appendSwitch("Flip Y", "Flip Y" , sinkID, false);
 921     fAppMenu->assignKeyEquivalentToItem(itemID, 'y');
 922     itemID = fAppMenu->appendSwitch("Zoomer", "Zoomer" , sinkID, fShowZoomer);
 923     fAppMenu->assignKeyEquivalentToItem(itemID, 'z');
 924     itemID = fAppMenu->appendSwitch("Magnify", "Magnify" , sinkID, fMagnify);
 925     fAppMenu->assignKeyEquivalentToItem(itemID, 'm');
 926     itemID =fAppMenu->appendList("Transition-Next", "Transition-Next", sinkID,
 927                                 fTransitionNext, "Up", "Up and Right", "Right",
 928                                 "Down and Right", "Down", "Down and Left",
 929                                 "Left", "Up and Left", NULL);
 930     fAppMenu->assignKeyEquivalentToItem(itemID, 'j');
 931     itemID =fAppMenu->appendList("Transition-Prev", "Transition-Prev", sinkID,
 932                                 fTransitionPrev, "Up", "Up and Right", "Right",
 933                                 "Down and Right", "Down", "Down and Left",
 934                                 "Left", "Up and Left", NULL);
 935     fAppMenu->assignKeyEquivalentToItem(itemID, 'k');
 936     itemID = fAppMenu->appendAction("Save to PDF", sinkID);
 937     fAppMenu->assignKeyEquivalentToItem(itemID, 'e');
 938
 939     this->addMenu(fAppMenu);
 940     fSlideMenu = new SkOSMenu;
 941     this->addMenu(fSlideMenu);
 942
 943     this->setColorType(kN32_SkColorType);
 944     this->setVisibleP(true);
 945     this->setClipToBounds(false);
 946
 947     this->loadView((*fSamples[fCurrIndex])());
 948
 949     fPDFData = NULL;
 950
 951     if (NULL == devManager) {
 952         fDevManager = new DefaultDeviceManager();
 953     } else {
 954         devManager->ref();
 955         fDevManager = devManager;
 956     }
 957     fDevManager->setUpBackend(this, fMSAASampleCount);
 958
 959     // If another constructor set our dimensions, ensure that our
 960     // onSizeChange gets called.
 961     if (this->height() && this->width()) {
 962         this->onSizeChange();
 963     }
 964
 965     // can't call this synchronously, since it may require a subclass to
 966     // to implement, or the caller may need us to have returned from the
 967     // constructor first. Hence we post an event to ourselves.
 968 //    this->updateTitle();
 969     post_event_to_sink(new SkEvent(gUpdateWindowTitleEvtName), this);
 970 }
 971
 972 SampleWindow::~SampleWindow() {
 973     delete fPdfCanvas;
 974     SkSafeUnref(fTypeface);
 975     SkSafeUnref(fDevManager);
 976 }
 977
 978
 979 int SampleWindow::findByTitle(const char title[]) {
 980     int i, count = fSamples.count();
 981     for (i = 0; i < count; i++) {
 982         if (getSampleTitle(i).equals(title)) {
 983             return i;
 984         }
 985     }
 986     return -1;
 987 }
 988
 989 void SampleWindow::listTitles() {
 990     int count = fSamples.count();
 991     SkDebugf("All Slides:\n");
 992     for (int i = 0; i < count; i++) {
 993         SkDebugf("    %s\n", getSampleTitle(i).c_str());
 994     }
 995 }
 996
 997 static SkBitmap capture_bitmap(SkCanvas* canvas) {
 998     SkBitmap bm;
 999     if (bm.tryAllocPixels(canvas->imageInfo())) {
1000         canvas->readPixels(&bm, 0, 0);
1001     }
1002     return bm;
1003 }
1004
1005 static bool bitmap_diff(SkCanvas* canvas, const SkBitmap& orig,
1006                         SkBitmap* diff) {
1007     SkBitmap src = capture_bitmap(canvas);
1008
1009     SkAutoLockPixels alp0(src);
1010     SkAutoLockPixels alp1(orig);
1011     for (int y = 0; y < src.height(); y++) {
1012         const void* srcP = src.getAddr(0, y);
1013         const void* origP = orig.getAddr(0, y);
1014         size_t bytes = src.width() * src.bytesPerPixel();
1015         if (memcmp(srcP, origP, bytes)) {
1016             SkDebugf("---------- difference on line %d\n", y);
1017             return true;
1018         }
1019     }
1020     return false;
1021 }
1022
1023 static void drawText(SkCanvas* canvas, SkString string, SkScalar left, SkScalar top, SkPaint& paint)
1024 {
1025     SkColor desiredColor = paint.getColor();
1026     paint.setColor(SK_ColorWHITE);
1027     const char* c_str = string.c_str();
1028     size_t size = string.size();
1029     SkRect bounds;
1030     paint.measureText(c_str, size, &bounds);
1031     bounds.offset(left, top);
1032     SkScalar inset = SkIntToScalar(-2);
1033     bounds.inset(inset, inset);
1034     canvas->drawRect(bounds, paint);
1035     if (desiredColor != SK_ColorBLACK) {
1036         paint.setColor(SK_ColorBLACK);
1037         canvas->drawText(c_str, size, left + SK_Scalar1, top + SK_Scalar1, paint);
1038     }
1039     paint.setColor(desiredColor);
1040     canvas->drawText(c_str, size, left, top, paint);
1041 }
1042
1043 #define XCLIP_N  8
1044 #define YCLIP_N  8
1045
1046 void SampleWindow::draw(SkCanvas* canvas) {
1047     // update the animation time
1048     if (!gAnimTimePrev && !gAnimTime) {
1049         // first time make delta be 0
1050         gAnimTime = SkTime::GetMSecs();
1051         gAnimTimePrev = gAnimTime;
1052     } else {
1053         gAnimTimePrev = gAnimTime;
1054         gAnimTime = SkTime::GetMSecs();
1055     }
1056
1057     if (fGesture.isActive()) {
1058         this->updateMatrix();
1059     }
1060
1061     if (fMeasureFPS) {
1062         fMeasureFPS_Time = 0;
1063     }
1064
1065     if (fNClip) {
1066         this->INHERITED::draw(canvas);
1067         SkBitmap orig = capture_bitmap(canvas);
1068
1069         const SkScalar w = this->width();
1070         const SkScalar h = this->height();
1071         const SkScalar cw = w / XCLIP_N;
1072         const SkScalar ch = h / YCLIP_N;
1073         for (int y = 0; y < YCLIP_N; y++) {
1074             SkRect r;
1075             r.fTop = y * ch;
1076             r.fBottom = (y + 1) * ch;
1077             if (y == YCLIP_N - 1) {
1078                 r.fBottom = h;
1079             }
1080             for (int x = 0; x < XCLIP_N; x++) {
1081                 SkAutoCanvasRestore acr(canvas, true);
1082                 r.fLeft = x * cw;
1083                 r.fRight = (x + 1) * cw;
1084                 if (x == XCLIP_N - 1) {
1085                     r.fRight = w;
1086                 }
1087                 canvas->clipRect(r);
1088                 this->INHERITED::draw(canvas);
1089             }
1090         }
1091
1092         SkBitmap diff;
1093         if (bitmap_diff(canvas, orig, &diff)) {
1094         }
1095     } else {
1096         SkSize tile = this->tileSize();
1097
1098         if (kNo_Tiling == fTilingMode) {
1099             this->INHERITED::draw(canvas); // no looping or surfaces needed
1100         } else {
1101             const int w = SkScalarRoundToInt(tile.width());
1102             const int h = SkScalarRoundToInt(tile.height());
1103             SkImageInfo info = SkImageInfo::MakeN32Premul(w, h);
1104             SkAutoTUnref<SkSurface> surface(canvas->newSurface(info));
1105             SkCanvas* tileCanvas = surface->getCanvas();
1106
1107             for (SkScalar y = 0; y < height(); y += tile.height()) {
1108                 for (SkScalar x = 0; x < width(); x += tile.width()) {
1109                     SkAutoCanvasRestore acr(tileCanvas, true);
1110                     tileCanvas->translate(-x, -y);
1111                     tileCanvas->clear(0);
1112                     this->INHERITED::draw(tileCanvas);
1113                     surface->draw(canvas, x, y, NULL);
1114                 }
1115             }
1116
1117             // for drawing the borders between tiles
1118             SkPaint paint;
1119             paint.setColor(0x60FF00FF);
1120             paint.setStyle(SkPaint::kStroke_Style);
1121
1122             for (SkScalar y = 0; y < height(); y += tile.height()) {
1123                 for (SkScalar x = 0; x < width(); x += tile.width()) {
1124                     canvas->drawRect(SkRect::MakeXYWH(x, y, tile.width(), tile.height()), paint);
1125                 }
1126             }
1127         }
1128     }
1129     if (fShowZoomer && !fSaveToPdf) {
1130         showZoomer(canvas);
1131     }
1132     if (fMagnify && !fSaveToPdf) {
1133         magnify(canvas);
1134     }
1135
1136     if (fMeasureFPS && fMeasureFPS_Time) {
1137         this->updateTitle();
1138         this->postInvalDelay();
1139     }
1140
1141     // do this last
1142     fDevManager->publishCanvas(fDeviceType, canvas, this);
1143 }
1144
1145 static float clipW = 200;
1146 static float clipH = 200;
1147 void SampleWindow::magnify(SkCanvas* canvas) {
1148     SkRect r;
1149     int count = canvas->save();
1150
1151     SkMatrix m = canvas->getTotalMatrix();
1152     if (!m.invert(&m)) {
1153         return;
1154     }
1155     SkPoint offset, center;
1156     SkScalar mouseX = fMouseX * SK_Scalar1;
1157     SkScalar mouseY = fMouseY * SK_Scalar1;
1158     m.mapXY(mouseX - clipW/2, mouseY - clipH/2, &offset);
1159     m.mapXY(mouseX, mouseY, &center);
1160
1161     r.set(0, 0, clipW * m.getScaleX(), clipH * m.getScaleX());
1162     r.offset(offset.fX, offset.fY);
1163
1164     SkPaint paint;
1165     paint.setColor(0xFF66AAEE);
1166     paint.setStyle(SkPaint::kStroke_Style);
1167     paint.setStrokeWidth(10.f * m.getScaleX());
1168     //lense offset
1169     //canvas->translate(0, -250);
1170     canvas->drawRect(r, paint);
1171     canvas->clipRect(r);
1172
1173     m = canvas->getTotalMatrix();
1174     m.setTranslate(-center.fX, -center.fY);
1175     m.postScale(0.5f * fFatBitsScale, 0.5f * fFatBitsScale);
1176     m.postTranslate(center.fX, center.fY);
1177     canvas->concat(m);
1178
1179     this->INHERITED::draw(canvas);
1180
1181     canvas->restoreToCount(count);
1182 }
1183
1184 void SampleWindow::showZoomer(SkCanvas* canvas) {
1185         int count = canvas->save();
1186         canvas->resetMatrix();
1187         // Ensure the mouse position is on screen.
1188         int width = SkScalarRoundToInt(this->width());
1189         int height = SkScalarRoundToInt(this->height());
1190         if (fMouseX >= width) fMouseX = width - 1;
1191         else if (fMouseX < 0) fMouseX = 0;
1192         if (fMouseY >= height) fMouseY = height - 1;
1193         else if (fMouseY < 0) fMouseY = 0;
1194
1195         SkBitmap bitmap = capture_bitmap(canvas);
1196         bitmap.lockPixels();
1197
1198         // Find the size of the zoomed in view, forced to be odd, so the examined pixel is in the middle.
1199         int zoomedWidth = (width >> 1) | 1;
1200         int zoomedHeight = (height >> 1) | 1;
1201         SkIRect src;
1202         src.set(0, 0, zoomedWidth / fFatBitsScale, zoomedHeight / fFatBitsScale);
1203         src.offset(fMouseX - (src.width()>>1), fMouseY - (src.height()>>1));
1204         SkRect dest;
1205         dest.set(0, 0, SkIntToScalar(zoomedWidth), SkIntToScalar(zoomedHeight));
1206         dest.offset(SkIntToScalar(width - zoomedWidth), SkIntToScalar(height - zoomedHeight));
1207         SkPaint paint;
1208         // Clear the background behind our zoomed in view
1209         paint.setColor(SK_ColorWHITE);
1210         canvas->drawRect(dest, paint);
1211         canvas->drawBitmapRect(bitmap, &src, dest);
1212         paint.setColor(SK_ColorBLACK);
1213         paint.setStyle(SkPaint::kStroke_Style);
1214         // Draw a border around the pixel in the middle
1215         SkRect originalPixel;
1216         originalPixel.set(SkIntToScalar(fMouseX), SkIntToScalar(fMouseY), SkIntToScalar(fMouseX + 1), SkIntToScalar(fMouseY + 1));
1217         SkMatrix matrix;
1218         SkRect scalarSrc;
1219         scalarSrc.set(src);
1220         SkColor color = bitmap.getColor(fMouseX, fMouseY);
1221         if (matrix.setRectToRect(scalarSrc, dest, SkMatrix::kFill_ScaleToFit)) {
1222             SkRect pixel;
1223             matrix.mapRect(&pixel, originalPixel);
1224             // TODO Perhaps measure the values and make the outline white if it's "dark"
1225             if (color == SK_ColorBLACK) {
1226                 paint.setColor(SK_ColorWHITE);
1227             }
1228             canvas->drawRect(pixel, paint);
1229         }
1230         paint.setColor(SK_ColorBLACK);
1231         // Draw a border around the destination rectangle
1232         canvas->drawRect(dest, paint);
1233         paint.setStyle(SkPaint::kStrokeAndFill_Style);
1234         // Identify the pixel and its color on screen
1235         paint.setTypeface(fTypeface);
1236         paint.setAntiAlias(true);
1237         SkScalar lineHeight = paint.getFontMetrics(NULL);
1238         SkString string;
1239         string.appendf("(%i, %i)", fMouseX, fMouseY);
1240         SkScalar left = dest.fLeft + SkIntToScalar(3);
1241         SkScalar i = SK_Scalar1;
1242         drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1243         // Alpha
1244         i += SK_Scalar1;
1245         string.reset();
1246         string.appendf("A: %X", SkColorGetA(color));
1247         drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1248         // Red
1249         i += SK_Scalar1;
1250         string.reset();
1251         string.appendf("R: %X", SkColorGetR(color));
1252         paint.setColor(SK_ColorRED);
1253         drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1254         // Green
1255         i += SK_Scalar1;
1256         string.reset();
1257         string.appendf("G: %X", SkColorGetG(color));
1258         paint.setColor(SK_ColorGREEN);
1259         drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1260         // Blue
1261         i += SK_Scalar1;
1262         string.reset();
1263         string.appendf("B: %X", SkColorGetB(color));
1264         paint.setColor(SK_ColorBLUE);
1265         drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1266         canvas->restoreToCount(count);
1267 }
1268
1269 void SampleWindow::onDraw(SkCanvas* canvas) {
1270 }
1271
1272 #include "SkColorPriv.h"
1273
1274 void SampleWindow::saveToPdf()
1275 {
1276     fSaveToPdf = true;
1277     this->inval(NULL);
1278 }
1279
1280 SkCanvas* SampleWindow::beforeChildren(SkCanvas* canvas) {
1281     if (fSaveToPdf) {
1282         const SkBitmap bmp = capture_bitmap(canvas);
1283         SkISize size = SkISize::Make(bmp.width(), bmp.height());
1284         SkPDFDevice* pdfDevice = new SkPDFDevice(size, size,
1285                 canvas->getTotalMatrix());
1286         fPdfCanvas = new SkCanvas(pdfDevice);
1287         pdfDevice->unref();
1288         canvas = fPdfCanvas;
1289     } else if (kPicture_DeviceType == fDeviceType) {
1290         canvas = fRecorder.beginRecording(9999, 9999, NULL, 0);
1291     } else {
1292 #if SK_SUPPORT_GPU
1293         if (kNullGPU_DeviceType != fDeviceType)
1294 #endif
1295         {
1296             canvas = this->INHERITED::beforeChildren(canvas);
1297         }
1298     }
1299
1300     if (fUseClip) {
1301         canvas->drawColor(0xFFFF88FF);
1302         canvas->clipPath(fClipPath, SkRegion::kIntersect_Op, true);
1303     }
1304
1305     return canvas;
1306 }
1307
1308 #include "SkData.h"
1309 void SampleWindow::afterChildren(SkCanvas* orig) {
1310     if (fSaveToPdf) {
1311         fSaveToPdf = false;
1312         if (fShowZoomer) {
1313             showZoomer(fPdfCanvas);
1314         }
1315         SkString name;
1316         name.printf("%s.pdf", this->getTitle());
1317         SkPDFDocument doc;
1318         SkPDFDevice* device = NULL;//static_cast<SkPDFDevice*>(fPdfCanvas->getDevice());
1319         SkASSERT(false);
1320         doc.appendPage(device);
1321 #ifdef SK_BUILD_FOR_ANDROID
1322         name.prepend("/sdcard/");
1323 #endif
1324
1325 #ifdef SK_BUILD_FOR_IOS
1326         SkDynamicMemoryWStream mstream;
1327         doc.emitPDF(&mstream);
1328         fPDFData = mstream.copyToData();
1329 #endif
1330         SkFILEWStream stream(name.c_str());
1331         if (stream.isValid()) {
1332             doc.emitPDF(&stream);
1333             const char* desc = "File saved from Skia SampleApp";
1334             this->onPDFSaved(this->getTitle(), desc, name.c_str());
1335         }
1336
1337         delete fPdfCanvas;
1338         fPdfCanvas = NULL;
1339
1340         // We took over the draw calls in order to create the PDF, so we need
1341         // to redraw.
1342         this->inval(NULL);
1343         return;
1344     }
1345
1346     if (fRequestGrabImage) {
1347         fRequestGrabImage = false;
1348
1349         SkBitmap bmp = capture_bitmap(orig);
1350         if (!bmp.isNull()) {
1351             static int gSampleGrabCounter;
1352             SkString name;
1353             name.printf("sample_grab_%d.png", gSampleGrabCounter++);
1354             SkImageEncoder::EncodeFile(name.c_str(), bmp,
1355                                        SkImageEncoder::kPNG_Type, 100);
1356         }
1357     }
1358
1359     if (kPicture_DeviceType == fDeviceType) {
1360         SkAutoTUnref<const SkPicture> picture(fRecorder.endRecording());
1361
1362         if (true) {
1363             this->installDrawFilter(orig);
1364             orig->drawPicture(picture);
1365         } else if (true) {
1366             SkDynamicMemoryWStream ostream;
1367             picture->serialize(&ostream);
1368
1369             SkAutoDataUnref data(ostream.copyToData());
1370             SkMemoryStream istream(data->data(), data->size());
1371             SkAutoTUnref<SkPicture> pict(SkPicture::CreateFromStream(&istream));
1372             if (pict.get() != NULL) {
1373                 orig->drawPicture(pict.get());
1374             }
1375         } else {
1376             picture->playback(orig);
1377         }
1378     }
1379
1380     // Do this after presentGL and other finishing, rather than in afterChild
1381     if (fMeasureFPS && fMeasureFPS_StartTime) {
1382         fMeasureFPS_Time += SkTime::GetMSecs() - fMeasureFPS_StartTime;
1383     }
1384 }
1385
1386 void SampleWindow::beforeChild(SkView* child, SkCanvas* canvas) {
1387     if (fRotate) {
1388         fRotateAnimTime += SampleCode::GetAnimSecondsDelta();
1389
1390         SkScalar cx = this->width() / 2;
1391         SkScalar cy = this->height() / 2;
1392         canvas->translate(cx, cy);
1393         canvas->rotate(fRotateAnimTime * 10);
1394         canvas->translate(-cx, -cy);
1395     }
1396
1397     if (fPerspAnim) {
1398         fPerspAnimTime += SampleCode::GetAnimSecondsDelta();
1399
1400         static const SkScalar gAnimPeriod = 10 * SK_Scalar1;
1401         static const SkScalar gAnimMag = SK_Scalar1 / 1000;
1402         SkScalar t = SkScalarMod(fPerspAnimTime, gAnimPeriod);
1403         if (SkScalarFloorToInt(SkScalarDiv(fPerspAnimTime, gAnimPeriod)) & 0x1) {
1404             t = gAnimPeriod - t;
1405         }
1406         t = 2 * t - gAnimPeriod;
1407         t = SkScalarMul(SkScalarDiv(t, gAnimPeriod), gAnimMag);
1408         SkMatrix m;
1409         m.reset();
1410 #if 1
1411         m.setPerspY(t);
1412 #else
1413         m.setPerspY(SK_Scalar1 / 1000);
1414         m.setSkewX(SkScalarDiv(8, 25));
1415         m.dump();
1416 #endif
1417         canvas->concat(m);
1418     }
1419
1420     this->installDrawFilter(canvas);
1421
1422     if (fMeasureFPS) {
1423         if (SampleView::SetRepeatDraw(child, FPS_REPEAT_COUNT)) {
1424             fMeasureFPS_StartTime = SkTime::GetMSecs();
1425         }
1426     } else {
1427         (void)SampleView::SetRepeatDraw(child, 1);
1428     }
1429     if (fPerspAnim || fRotate) {
1430         this->inval(NULL);
1431     }
1432 }
1433
1434 void SampleWindow::afterChild(SkView* child, SkCanvas* canvas) {
1435     canvas->setDrawFilter(NULL);
1436 }
1437
1438 static SkColorType gColorTypeCycle[] = {
1439     kUnknown_SkColorType,           // none -> none
1440     kUnknown_SkColorType,           // a8 -> none
1441     kN32_SkColorType,               // 565 -> 8888
1442     kN32_SkColorType,               // 4444 -> 8888
1443     kRGB_565_SkColorType,           // 8888 -> 565
1444     kRGB_565_SkColorType,           // 8888 -> 565
1445     kUnknown_SkColorType,           // index8 -> none
1446 };
1447
1448 static SkColorType cycle_colortypes(SkColorType c) {
1449     return gColorTypeCycle[c];
1450 }
1451
1452 void SampleWindow::changeZoomLevel(float delta) {
1453     fZoomLevel += delta;
1454     if (fZoomLevel > 0) {
1455         fZoomLevel = SkMinScalar(fZoomLevel, MAX_ZOOM_LEVEL);
1456         fZoomScale = fZoomLevel + SK_Scalar1;
1457     } else if (fZoomLevel < 0) {
1458         fZoomLevel = SkMaxScalar(fZoomLevel, MIN_ZOOM_LEVEL);
1459         fZoomScale = SK_Scalar1 / (SK_Scalar1 - fZoomLevel);
1460     } else {
1461         fZoomScale = SK_Scalar1;
1462     }
1463     this->updateMatrix();
1464 }
1465
1466 void SampleWindow::updateMatrix(){
1467     SkMatrix m;
1468     m.reset();
1469     if (fZoomLevel) {
1470         SkPoint center;
1471         //m = this->getLocalMatrix();//.invert(&m);
1472         m.mapXY(fZoomCenterX, fZoomCenterY, &center);
1473         SkScalar cx = center.fX;
1474         SkScalar cy = center.fY;
1475
1476         m.setTranslate(-cx, -cy);
1477         m.postScale(fZoomScale, fZoomScale);
1478         m.postTranslate(cx, cy);
1479     }
1480
1481     if (fFlipAxis) {
1482         m.preTranslate(fZoomCenterX, fZoomCenterY);
1483         if (fFlipAxis & kFlipAxis_X) {
1484             m.preScale(-SK_Scalar1, SK_Scalar1);
1485         }
1486         if (fFlipAxis & kFlipAxis_Y) {
1487             m.preScale(SK_Scalar1, -SK_Scalar1);
1488         }
1489         m.preTranslate(-fZoomCenterX, -fZoomCenterY);
1490         //canvas->concat(m);
1491     }
1492     // Apply any gesture matrix
1493     m.preConcat(fGesture.localM());
1494     m.preConcat(fGesture.globalM());
1495
1496     this->setLocalMatrix(m);
1497
1498     this->updateTitle();
1499     this->inval(NULL);
1500 }
1501 bool SampleWindow::previousSample() {
1502     fCurrIndex = (fCurrIndex - 1 + fSamples.count()) % fSamples.count();
1503     this->loadView(create_transition(curr_view(this), (*fSamples[fCurrIndex])(),
1504                                      fTransitionPrev));
1505     return true;
1506 }
1507
1508 bool SampleWindow::nextSample() {
1509     fCurrIndex = (fCurrIndex + 1) % fSamples.count();
1510     this->loadView(create_transition(curr_view(this), (*fSamples[fCurrIndex])(),
1511                                      fTransitionNext));
1512     return true;
1513 }
1514
1515 bool SampleWindow::goToSample(int i) {
1516     fCurrIndex = (i) % fSamples.count();
1517     this->loadView(create_transition(curr_view(this),(*fSamples[fCurrIndex])(), 6));
1518     return true;
1519 }
1520
1521 SkString SampleWindow::getSampleTitle(int i) {
1522     return ::getSampleTitle(fSamples[i]);
1523 }
1524
1525 int SampleWindow::sampleCount() {
1526     return fSamples.count();
1527 }
1528
1529 void SampleWindow::showOverview() {
1530     this->loadView(create_transition(curr_view(this),
1531                                      create_overview(fSamples.count(), fSamples.begin()),
1532                                      4));
1533 }
1534
1535 void SampleWindow::installDrawFilter(SkCanvas* canvas) {
1536     canvas->setDrawFilter(new FlagsDrawFilter(fLCDState, fAAState, fSubpixelState,
1537                                               fHintingState, fFilterLevelIndex))->unref();
1538 }
1539
1540 void SampleWindow::postAnimatingEvent() {
1541     if (fAnimating) {
1542         (new SkEvent(ANIMATING_EVENTTYPE, this->getSinkID()))->postDelay(ANIMATING_DELAY);
1543     }
1544 }
1545
1546 bool SampleWindow::onEvent(const SkEvent& evt) {
1547     if (evt.isType(gUpdateWindowTitleEvtName)) {
1548         this->updateTitle();
1549         return true;
1550     }
1551     if (evt.isType(ANIMATING_EVENTTYPE)) {
1552         if (fAnimating) {
1553             this->nextSample();
1554             this->postAnimatingEvent();
1555         }
1556         return true;
1557     }
1558     if (evt.isType("replace-transition-view")) {
1559         this->loadView((SkView*)SkEventSink::FindSink(evt.getFast32()));
1560         return true;
1561     }
1562     if (evt.isType("set-curr-index")) {
1563         this->goToSample(evt.getFast32());
1564         return true;
1565     }
1566     if (isInvalEvent(evt)) {
1567         this->inval(NULL);
1568         return true;
1569     }
1570     int selected = -1;
1571     if (SkOSMenu::FindListIndex(evt, "Device Type", &selected)) {
1572         this->setDeviceType((DeviceType)selected);
1573         return true;
1574     }
1575     if (SkOSMenu::FindTriState(evt, "Pipe", &fPipeState)) {
1576 #ifdef PIPE_NET
1577         if (!fPipeState != SkOSMenu::kOnState)
1578             gServer.disconnectAll();
1579 #endif
1580         (void)SampleView::SetUsePipe(curr_view(this), fPipeState);
1581         this->updateTitle();
1582         this->inval(NULL);
1583         return true;
1584     }
1585     if (SkOSMenu::FindSwitchState(evt, "Slide Show", NULL)) {
1586         this->toggleSlideshow();
1587         return true;
1588     }
1589     if (SkOSMenu::FindTriState(evt, "AA", &fAAState) ||
1590         SkOSMenu::FindTriState(evt, "LCD", &fLCDState) ||
1591         SkOSMenu::FindListIndex(evt, "FilterLevel", &fFilterLevelIndex) ||
1592         SkOSMenu::FindTriState(evt, "Subpixel", &fSubpixelState) ||
1593         SkOSMenu::FindListIndex(evt, "Hinting", &fHintingState) ||
1594         SkOSMenu::FindSwitchState(evt, "Clip", &fUseClip) ||
1595         SkOSMenu::FindSwitchState(evt, "Zoomer", &fShowZoomer) ||
1596         SkOSMenu::FindSwitchState(evt, "Magnify", &fMagnify) ||
1597         SkOSMenu::FindListIndex(evt, "Transition-Next", &fTransitionNext) ||
1598         SkOSMenu::FindListIndex(evt, "Transition-Prev", &fTransitionPrev)) {
1599         this->inval(NULL);
1600         this->updateTitle();
1601         return true;
1602     }
1603     if (SkOSMenu::FindListIndex(evt, "Tiling", &fTilingMode)) {
1604         if (SampleView::IsSampleView(curr_view(this))) {
1605             ((SampleView*)curr_view(this))->onTileSizeChanged(this->tileSize());
1606         }
1607         this->inval(NULL);
1608         this->updateTitle();
1609         return true;
1610     }
1611     if (SkOSMenu::FindSwitchState(evt, "Flip X", NULL)) {
1612         fFlipAxis ^= kFlipAxis_X;
1613         this->updateMatrix();
1614         return true;
1615     }
1616     if (SkOSMenu::FindSwitchState(evt, "Flip Y", NULL)) {
1617         fFlipAxis ^= kFlipAxis_Y;
1618         this->updateMatrix();
1619         return true;
1620     }
1621     if (SkOSMenu::FindAction(evt,"Save to PDF")) {
1622         this->saveToPdf();
1623         return true;
1624     }
1625     return this->INHERITED::onEvent(evt);
1626 }
1627
1628 bool SampleWindow::onQuery(SkEvent* query) {
1629     if (query->isType("get-slide-count")) {
1630         query->setFast32(fSamples.count());
1631         return true;
1632     }
1633     if (query->isType("get-slide-title")) {
1634         SkView* view = (*fSamples[query->getFast32()])();
1635         SkEvent evt(gTitleEvtName);
1636         if (view->doQuery(&evt)) {
1637             query->setString("title", evt.findString(gTitleEvtName));
1638         }
1639         SkSafeUnref(view);
1640         return true;
1641     }
1642     if (query->isType("use-fast-text")) {
1643         SkEvent evt(gFastTextEvtName);
1644         return curr_view(this)->doQuery(&evt);
1645     }
1646     if (query->isType("ignore-window-bitmap")) {
1647         query->setFast32(this->getGrContext() != NULL);
1648         return true;
1649     }
1650     return this->INHERITED::onQuery(query);
1651 }
1652
1653 #if 0 // UNUSED
1654 static void cleanup_for_filename(SkString* name) {
1655     char* str = name->writable_str();
1656     for (size_t i = 0; i < name->size(); i++) {
1657         switch (str[i]) {
1658             case ':': str[i] = '-'; break;
1659             case '/': str[i] = '-'; break;
1660             case ' ': str[i] = '_'; break;
1661             default: break;
1662         }
1663     }
1664 }
1665 #endif
1666
1667 DECLARE_bool(portableFonts);
1668
1669 bool SampleWindow::onHandleChar(SkUnichar uni) {
1670     {
1671         SkView* view = curr_view(this);
1672         if (view) {
1673             SkEvent evt(gCharEvtName);
1674             evt.setFast32(uni);
1675             if (view->doQuery(&evt)) {
1676                 return true;
1677             }
1678         }
1679     }
1680
1681     int dx = 0xFF;
1682     int dy = 0xFF;
1683
1684     switch (uni) {
1685         case '5': dx =  0; dy =  0; break;
1686         case '8': dx =  0; dy = -1; break;
1687         case '6': dx =  1; dy =  0; break;
1688         case '2': dx =  0; dy =  1; break;
1689         case '4': dx = -1; dy =  0; break;
1690         case '7': dx = -1; dy = -1; break;
1691         case '9': dx =  1; dy = -1; break;
1692         case '3': dx =  1; dy =  1; break;
1693         case '1': dx = -1; dy =  1; break;
1694
1695         default:
1696             break;
1697     }
1698
1699     if (0xFF != dx && 0xFF != dy) {
1700         if ((dx | dy) == 0) {
1701             fScrollTestX = fScrollTestY = 0;
1702         } else {
1703             fScrollTestX += dx;
1704             fScrollTestY += dy;
1705         }
1706         this->inval(NULL);
1707         return true;
1708     }
1709
1710     switch (uni) {
1711         case 'B':
1712             post_event_to_sink(SkNEW_ARGS(SkEvent, ("PictFileView::toggleBBox")), curr_view(this));
1713             // Cannot call updateTitle() synchronously, because the toggleBBox event is still in
1714             // the queue.
1715             post_event_to_sink(SkNEW_ARGS(SkEvent, (gUpdateWindowTitleEvtName)), this);
1716             this->inval(NULL);
1717             break;
1718         case 'f':
1719             // only
1720             toggleFPS();
1721             break;
1722         case 'F':
1723             FLAGS_portableFonts ^= true;
1724             this->inval(NULL);
1725             break;
1726         case 'g':
1727             fRequestGrabImage = true;
1728             this->inval(NULL);
1729             break;
1730         case 'G':
1731             gShowGMBounds = !gShowGMBounds;
1732             post_event_to_sink(GMSampleView::NewShowSizeEvt(gShowGMBounds),
1733                             curr_view(this));
1734             this->inval(NULL);
1735             break;
1736         case 'i':
1737             this->zoomIn();
1738             break;
1739         case 'o':
1740             this->zoomOut();
1741             break;
1742         case 'r':
1743             fRotate = !fRotate;
1744             fRotateAnimTime = 0;
1745             this->inval(NULL);
1746             this->updateTitle();
1747             return true;
1748         case 'k':
1749             fPerspAnim = !fPerspAnim;
1750             this->inval(NULL);
1751             this->updateTitle();
1752             return true;
1753 #if SK_SUPPORT_GPU
1754         case '\\':
1755             this->setDeviceType(kNullGPU_DeviceType);
1756             this->inval(NULL);
1757             this->updateTitle();
1758             return true;
1759         case 'p':
1760             {
1761                 GrContext* grContext = this->getGrContext();
1762                 if (grContext) {
1763                     size_t cacheBytes;
1764                     grContext->getResourceCacheUsage(NULL, &cacheBytes);
1765                     grContext->freeGpuResources();
1766                     SkDebugf("Purged %d bytes from the GPU resource cache.\n", cacheBytes);
1767                 }
1768             }
1769             return true;
1770 #endif
1771         default:
1772             break;
1773     }
1774
1775     if (fAppMenu->handleKeyEquivalent(uni)|| fSlideMenu->handleKeyEquivalent(uni)) {
1776         this->onUpdateMenu(fAppMenu);
1777         this->onUpdateMenu(fSlideMenu);
1778         return true;
1779     }
1780     return this->INHERITED::onHandleChar(uni);
1781 }
1782
1783 void SampleWindow::setDeviceType(DeviceType type) {
1784     if (type == fDeviceType)
1785         return;
1786
1787     fDevManager->tearDownBackend(this);
1788
1789     fDeviceType = type;
1790
1791     fDevManager->setUpBackend(this, fMSAASampleCount);
1792
1793     this->updateTitle();
1794     this->inval(NULL);
1795 }
1796
1797 void SampleWindow::toggleSlideshow() {
1798     fAnimating = !fAnimating;
1799     this->postAnimatingEvent();
1800     this->updateTitle();
1801 }
1802
1803 void SampleWindow::toggleRendering() {
1804     this->setDeviceType(cycle_devicetype(fDeviceType));
1805     this->updateTitle();
1806     this->inval(NULL);
1807 }
1808
1809 void SampleWindow::toggleFPS() {
1810     fMeasureFPS = !fMeasureFPS;
1811     this->updateTitle();
1812     this->inval(NULL);
1813 }
1814
1815 #include "SkDumpCanvas.h"
1816
1817 bool SampleWindow::onHandleKey(SkKey key) {
1818     {
1819         SkView* view = curr_view(this);
1820         if (view) {
1821             SkEvent evt(gKeyEvtName);
1822             evt.setFast32(key);
1823             if (view->doQuery(&evt)) {
1824                 return true;
1825             }
1826         }
1827     }
1828     switch (key) {
1829         case kRight_SkKey:
1830             if (this->nextSample()) {
1831                 return true;
1832             }
1833             break;
1834         case kLeft_SkKey:
1835             if (this->previousSample()) {
1836                 return true;
1837             }
1838             return true;
1839         case kUp_SkKey:
1840             if (USE_ARROWS_FOR_ZOOM) {
1841                 this->changeZoomLevel(1.f / 32.f);
1842             } else {
1843                 fNClip = !fNClip;
1844                 this->inval(NULL);
1845                 this->updateTitle();
1846             }
1847             return true;
1848         case kDown_SkKey:
1849             if (USE_ARROWS_FOR_ZOOM) {
1850                 this->changeZoomLevel(-1.f / 32.f);
1851             } else {
1852                 this->setColorType(cycle_colortypes(this->getBitmap().colorType()));
1853                 this->updateTitle();
1854             }
1855             return true;
1856         case kOK_SkKey: {
1857             SkString title;
1858             if (curr_title(this, &title)) {
1859                 writeTitleToPrefs(title.c_str());
1860             }
1861             return true;
1862         }
1863         case kBack_SkKey:
1864             this->showOverview();
1865             return true;
1866         default:
1867             break;
1868     }
1869     return this->INHERITED::onHandleKey(key);
1870 }
1871
1872 ///////////////////////////////////////////////////////////////////////////////
1873
1874 static const char gGestureClickType[] = "GestureClickType";
1875
1876 bool SampleWindow::onDispatchClick(int x, int y, Click::State state,
1877         void* owner, unsigned modi) {
1878     if (Click::kMoved_State == state) {
1879         updatePointer(x, y);
1880     }
1881     int w = SkScalarRoundToInt(this->width());
1882     int h = SkScalarRoundToInt(this->height());
1883
1884     // check for the resize-box
1885     if (w - x < 16 && h - y < 16) {
1886         return false;   // let the OS handle the click
1887     }
1888     else if (fMagnify) {
1889         //it's only necessary to update the drawing if there's a click
1890         this->inval(NULL);
1891         return false; //prevent dragging while magnify is enabled
1892     } else {
1893         // capture control+option, and trigger debugger
1894         if ((modi & kControl_SkModifierKey) && (modi & kOption_SkModifierKey)) {
1895             if (Click::kDown_State == state) {
1896                 SkEvent evt("debug-hit-test");
1897                 evt.setS32("debug-hit-test-x", x);
1898                 evt.setS32("debug-hit-test-y", y);
1899                 curr_view(this)->doEvent(evt);
1900             }
1901             return true;
1902         } else {
1903             return this->INHERITED::onDispatchClick(x, y, state, owner, modi);
1904         }
1905     }
1906 }
1907
1908 class GestureClick : public SkView::Click {
1909 public:
1910     GestureClick(SkView* target) : SkView::Click(target) {
1911         this->setType(gGestureClickType);
1912     }
1913
1914     static bool IsGesture(Click* click) {
1915         return click->isType(gGestureClickType);
1916     }
1917 };
1918
1919 SkView::Click* SampleWindow::onFindClickHandler(SkScalar x, SkScalar y,
1920                                                 unsigned modi) {
1921     return new GestureClick(this);
1922 }
1923
1924 bool SampleWindow::onClick(Click* click) {
1925     if (GestureClick::IsGesture(click)) {
1926         float x = static_cast<float>(click->fICurr.fX);
1927         float y = static_cast<float>(click->fICurr.fY);
1928
1929         switch (click->fState) {
1930             case SkView::Click::kDown_State:
1931                 fGesture.touchBegin(click->fOwner, x, y);
1932                 break;
1933             case SkView::Click::kMoved_State:
1934                 fGesture.touchMoved(click->fOwner, x, y);
1935                 this->updateMatrix();
1936                 break;
1937             case SkView::Click::kUp_State:
1938                 fGesture.touchEnd(click->fOwner);
1939                 this->updateMatrix();
1940                 break;
1941         }
1942         return true;
1943     }
1944     return false;
1945 }
1946
1947 ///////////////////////////////////////////////////////////////////////////////
1948
1949 void SampleWindow::loadView(SkView* view) {
1950     SkView::F2BIter iter(this);
1951     SkView* prev = iter.next();
1952     if (prev) {
1953         prev->detachFromParent();
1954     }
1955
1956     view->setVisibleP(true);
1957     view->setClipToBounds(false);
1958     this->attachChildToFront(view)->unref();
1959     view->setSize(this->width(), this->height());
1960
1961     //repopulate the slide menu when a view is loaded
1962     fSlideMenu->reset();
1963
1964     (void)SampleView::SetUsePipe(view, fPipeState);
1965     if (SampleView::IsSampleView(view)) {
1966         SampleView* sampleView = (SampleView*)view;
1967         sampleView->requestMenu(fSlideMenu);
1968         sampleView->onTileSizeChanged(this->tileSize());
1969     }
1970     this->onUpdateMenu(fSlideMenu);
1971     this->updateTitle();
1972 }
1973
1974 static const char* gDeviceTypePrefix[] = {
1975     "raster: ",
1976     "picture: ",
1977 #if SK_SUPPORT_GPU
1978     "opengl: ",
1979 #if SK_ANGLE
1980     "angle: ",
1981 #endif // SK_ANGLE
1982     "null-gl: "
1983 #endif // SK_SUPPORT_GPU
1984 };
1985 SK_COMPILE_ASSERT(SK_ARRAY_COUNT(gDeviceTypePrefix) == SampleWindow::kDeviceTypeCnt,
1986                   array_size_mismatch);
1987
1988 static const char* trystate_str(SkOSMenu::TriState state,
1989                                 const char trueStr[], const char falseStr[]) {
1990     if (SkOSMenu::kOnState == state) {
1991         return trueStr;
1992     } else if (SkOSMenu::kOffState == state) {
1993         return falseStr;
1994     }
1995     return NULL;
1996 }
1997
1998 void SampleWindow::updateTitle() {
1999     SkView* view = curr_view(this);
2000
2001     SkString title;
2002     if (!curr_title(this, &title)) {
2003         title.set("<unknown>");
2004     }
2005
2006     title.prepend(gDeviceTypePrefix[fDeviceType]);
2007
2008     title.prepend(" ");
2009     title.prepend(sk_tool_utils::colortype_name(this->getBitmap().colorType()));
2010
2011     if (fTilingMode != kNo_Tiling) {
2012         title.prependf("<T: %s> ", gTilingInfo[fTilingMode].label);
2013     }
2014     if (fAnimating) {
2015         title.prepend("<A> ");
2016     }
2017     if (fRotate) {
2018         title.prepend("<R> ");
2019     }
2020     if (fNClip) {
2021         title.prepend("<C> ");
2022     }
2023     if (fPerspAnim) {
2024         title.prepend("<K> ");
2025     }
2026
2027     title.prepend(trystate_str(fLCDState, "LCD ", "lcd "));
2028     title.prepend(trystate_str(fAAState, "AA ", "aa "));
2029     title.prepend(gFilterLevelStates[fFilterLevelIndex].fLabel);
2030     title.prepend(trystate_str(fSubpixelState, "S ", "s "));
2031     title.prepend(fFlipAxis & kFlipAxis_X ? "X " : NULL);
2032     title.prepend(fFlipAxis & kFlipAxis_Y ? "Y " : NULL);
2033     title.prepend(gHintingStates[fHintingState].label);
2034
2035     if (fZoomLevel) {
2036         title.prependf("{%.2f} ", SkScalarToFloat(fZoomLevel));
2037     }
2038
2039     if (fMeasureFPS) {
2040         title.appendf(" %8.3f ms", fMeasureFPS_Time / (float)FPS_REPEAT_COUNT);
2041     }
2042     if (SampleView::IsSampleView(view)) {
2043         switch (fPipeState) {
2044             case SkOSMenu::kOnState:
2045                 title.prepend("<Pipe> ");
2046                 break;
2047             case SkOSMenu::kMixedState:
2048                 title.prepend("<Tiled Pipe> ");
2049                 break;
2050
2051             default:
2052                 break;
2053         }
2054         title.prepend("! ");
2055     }
2056
2057 #if SK_SUPPORT_GPU
2058     if (IsGpuDeviceType(fDeviceType) &&
2059         fDevManager &&
2060         fDevManager->getGrRenderTarget() &&
2061         fDevManager->getGrRenderTarget()->numSamples() > 0) {
2062         title.appendf(" [MSAA: %d]",
2063                        fDevManager->getGrRenderTarget()->numSamples());
2064     }
2065 #endif
2066
2067     this->setTitle(title.c_str());
2068 }
2069
2070 void SampleWindow::onSizeChange() {
2071     this->INHERITED::onSizeChange();
2072
2073     SkView::F2BIter iter(this);
2074     SkView* view = iter.next();
2075     view->setSize(this->width(), this->height());
2076
2077     // rebuild our clippath
2078     {
2079         const SkScalar W = this->width();
2080         const SkScalar H = this->height();
2081
2082         fClipPath.reset();
2083 #if 0
2084         for (SkScalar y = SK_Scalar1; y < H; y += SkIntToScalar(32)) {
2085             SkRect r;
2086             r.set(SK_Scalar1, y, SkIntToScalar(30), y + SkIntToScalar(30));
2087             for (; r.fLeft < W; r.offset(SkIntToScalar(32), 0))
2088                 fClipPath.addRect(r);
2089         }
2090 #else
2091         SkRect r;
2092         r.set(0, 0, W, H);
2093         fClipPath.addRect(r, SkPath::kCCW_Direction);
2094         r.set(W/4, H/4, W*3/4, H*3/4);
2095         fClipPath.addRect(r, SkPath::kCW_Direction);
2096 #endif
2097     }
2098
2099     fZoomCenterX = SkScalarHalf(this->width());
2100     fZoomCenterY = SkScalarHalf(this->height());
2101
2102 #ifdef SK_BUILD_FOR_ANDROID
2103     // FIXME: The first draw after a size change does not work on Android, so
2104     // we post an invalidate.
2105     this->postInvalDelay();
2106 #endif
2107     this->updateTitle();    // to refresh our config
2108     fDevManager->windowSizeChanged(this);
2109
2110     if (fTilingMode != kNo_Tiling && SampleView::IsSampleView(view)) {
2111         ((SampleView*)view)->onTileSizeChanged(this->tileSize());
2112     }
2113 }
2114
2115 ///////////////////////////////////////////////////////////////////////////////
2116
2117 static const char is_sample_view_tag[] = "sample-is-sample-view";
2118 static const char repeat_count_tag[] = "sample-set-repeat-count";
2119 static const char set_use_pipe_tag[] = "sample-set-use-pipe";
2120
2121 bool SampleView::IsSampleView(SkView* view) {
2122     SkEvent evt(is_sample_view_tag);
2123     return view->doQuery(&evt);
2124 }
2125
2126 bool SampleView::SetRepeatDraw(SkView* view, int count) {
2127     SkEvent evt(repeat_count_tag);
2128     evt.setFast32(count);
2129     return view->doEvent(evt);
2130 }
2131
2132 bool SampleView::SetUsePipe(SkView* view, SkOSMenu::TriState state) {
2133     SkEvent evt;
2134     evt.setS32(set_use_pipe_tag, state);
2135     return view->doEvent(evt);
2136 }
2137
2138 bool SampleView::onEvent(const SkEvent& evt) {
2139     if (evt.isType(repeat_count_tag)) {
2140         fRepeatCount = evt.getFast32();
2141         return true;
2142     }
2143
2144     int32_t pipeHolder;
2145     if (evt.findS32(set_use_pipe_tag, &pipeHolder)) {
2146         fPipeState = static_cast<SkOSMenu::TriState>(pipeHolder);
2147         return true;
2148     }
2149
2150     return this->INHERITED::onEvent(evt);
2151 }
2152
2153 bool SampleView::onQuery(SkEvent* evt) {
2154     if (evt->isType(is_sample_view_tag)) {
2155         return true;
2156     }
2157     return this->INHERITED::onQuery(evt);
2158 }
2159
2160
2161 class SimplePC : public SkGPipeController {
2162 public:
2163     SimplePC(SkCanvas* target);
2164     ~SimplePC();
2165
2166     virtual void* requestBlock(size_t minRequest, size_t* actual);
2167     virtual void notifyWritten(size_t bytes);
2168
2169 private:
2170     SkGPipeReader   fReader;
2171     void*           fBlock;
2172     size_t          fBlockSize;
2173     size_t          fBytesWritten;
2174     int             fAtomsWritten;
2175     SkGPipeReader::Status   fStatus;
2176
2177     size_t        fTotalWritten;
2178 };
2179
2180 SimplePC::SimplePC(SkCanvas* target) : fReader(target) {
2181     fBlock = NULL;
2182     fBlockSize = fBytesWritten = 0;
2183     fStatus = SkGPipeReader::kDone_Status;
2184     fTotalWritten = 0;
2185     fAtomsWritten = 0;
2186     fReader.setBitmapDecoder(&SkImageDecoder::DecodeMemory);
2187 }
2188
2189 SimplePC::~SimplePC() {
2190 //    SkASSERT(SkGPipeReader::kDone_Status == fStatus);
2191     if (fTotalWritten) {
2192         SkDebugf("--- %d bytes %d atoms, status %d\n", fTotalWritten,
2193                  fAtomsWritten, fStatus);
2194 #ifdef  PIPE_FILE
2195         //File is open in append mode
2196         FILE* f = fopen(FILE_PATH, "ab");
2197         SkASSERT(f != NULL);
2198         fwrite((const char*)fBlock + fBytesWritten, 1, bytes, f);
2199         fclose(f);
2200 #endif
2201 #ifdef PIPE_NET
2202         if (fAtomsWritten > 1 && fTotalWritten > 4) { //ignore done
2203             gServer.acceptConnections();
2204             gServer.writePacket(fBlock, fTotalWritten);
2205         }
2206 #endif
2207     }
2208     sk_free(fBlock);
2209 }
2210
2211 void* SimplePC::requestBlock(size_t minRequest, size_t* actual) {
2212     sk_free(fBlock);
2213
2214     fBlockSize = minRequest * 4;
2215     fBlock = sk_malloc_throw(fBlockSize);
2216     fBytesWritten = 0;
2217     *actual = fBlockSize;
2218     return fBlock;
2219 }
2220
2221 void SimplePC::notifyWritten(size_t bytes) {
2222     SkASSERT(fBytesWritten + bytes <= fBlockSize);
2223     fStatus = fReader.playback((const char*)fBlock + fBytesWritten, bytes);
2224     SkASSERT(SkGPipeReader::kError_Status != fStatus);
2225     fBytesWritten += bytes;
2226     fTotalWritten += bytes;
2227
2228     fAtomsWritten += 1;
2229 }
2230
2231 void SampleView::draw(SkCanvas* canvas) {
2232     if (SkOSMenu::kOffState == fPipeState) {
2233         this->INHERITED::draw(canvas);
2234     } else {
2235         SkGPipeWriter writer;
2236         SimplePC controller(canvas);
2237         SkBitmap bitmap = capture_bitmap(canvas);
2238         TiledPipeController tc(bitmap, &SkImageDecoder::DecodeMemory, &canvas->getTotalMatrix());
2239         SkGPipeController* pc;
2240         if (SkOSMenu::kMixedState == fPipeState) {
2241             pc = &tc;
2242         } else {
2243             pc = &controller;
2244         }
2245         uint32_t flags = SkGPipeWriter::kCrossProcess_Flag;
2246
2247         canvas = writer.startRecording(pc, flags);
2248         //Must draw before controller goes out of scope and sends data
2249         this->INHERITED::draw(canvas);
2250         //explicitly end recording to ensure writer is flushed before the memory
2251         //is freed in the deconstructor of the controller
2252         writer.endRecording();
2253     }
2254 }
2255
2256 void SampleView::onDraw(SkCanvas* canvas) {
2257     this->onDrawBackground(canvas);
2258
2259     for (int i = 0; i < fRepeatCount; i++) {
2260         SkAutoCanvasRestore acr(canvas, true);
2261         this->onDrawContent(canvas);
2262     }
2263 }
2264
2265 void SampleView::onDrawBackground(SkCanvas* canvas) {
2266     canvas->drawColor(fBGColor);
2267 }
2268
2269 ///////////////////////////////////////////////////////////////////////////////
2270
2271 template <typename T> void SkTBSort(T array[], int count) {
2272     for (int i = 1; i < count - 1; i++) {
2273         bool didSwap = false;
2274         for (int j = count - 1; j > i; --j) {
2275             if (array[j] < array[j-1]) {
2276                 T tmp(array[j-1]);
2277                 array[j-1] = array[j];
2278                 array[j] = tmp;
2279                 didSwap = true;
2280             }
2281         }
2282         if (!didSwap) {
2283             break;
2284         }
2285     }
2286
2287     for (int k = 0; k < count - 1; k++) {
2288         SkASSERT(!(array[k+1] < array[k]));
2289     }
2290 }
2291
2292 #include "SkRandom.h"
2293
2294 static void rand_rect(SkIRect* rect, SkRandom& rand) {
2295     int bits = 8;
2296     int shift = 32 - bits;
2297     rect->set(rand.nextU() >> shift, rand.nextU() >> shift,
2298               rand.nextU() >> shift, rand.nextU() >> shift);
2299     rect->sort();
2300 }
2301
2302 static void dumpRect(const SkIRect& r) {
2303     SkDebugf(" { %d, %d, %d, %d },\n",
2304              r.fLeft, r.fTop,
2305              r.fRight, r.fBottom);
2306 }
2307
2308 static void test_rects(const SkIRect rect[], int count) {
2309     SkRegion rgn0, rgn1;
2310
2311     for (int i = 0; i < count; i++) {
2312         rgn0.op(rect[i], SkRegion::kUnion_Op);
2313      //   dumpRect(rect[i]);
2314     }
2315     rgn1.setRects(rect, count);
2316
2317     if (rgn0 != rgn1) {
2318         SkDebugf("\n");
2319         for (int i = 0; i < count; i++) {
2320             dumpRect(rect[i]);
2321         }
2322         SkDebugf("\n");
2323     }
2324 }
2325
2326 static void test() {
2327     size_t i;
2328
2329     const SkIRect r0[] = {
2330         { 0, 0, 1, 1 },
2331         { 2, 2, 3, 3 },
2332     };
2333     const SkIRect r1[] = {
2334         { 0, 0, 1, 3 },
2335         { 1, 1, 2, 2 },
2336         { 2, 0, 3, 3 },
2337     };
2338     const SkIRect r2[] = {
2339         { 0, 0, 1, 2 },
2340         { 2, 1, 3, 3 },
2341         { 4, 0, 5, 1 },
2342         { 6, 0, 7, 4 },
2343     };
2344
2345     static const struct {
2346         const SkIRect* fRects;
2347         int            fCount;
2348     } gRecs[] = {
2349         { r0, SK_ARRAY_COUNT(r0) },
2350         { r1, SK_ARRAY_COUNT(r1) },
2351         { r2, SK_ARRAY_COUNT(r2) },
2352     };
2353
2354     for (i = 0; i < SK_ARRAY_COUNT(gRecs); i++) {
2355         test_rects(gRecs[i].fRects, gRecs[i].fCount);
2356     }
2357
2358     SkRandom rand;
2359     for (i = 0; i < 10000; i++) {
2360         SkRegion rgn0, rgn1;
2361
2362         const int N = 8;
2363         SkIRect rect[N];
2364         for (int j = 0; j < N; j++) {
2365             rand_rect(&rect[j], rand);
2366         }
2367         test_rects(rect, N);
2368     }
2369 }
2370
2371 // FIXME: this should be in a header
2372 SkOSWindow* create_sk_window(void* hwnd, int argc, char** argv);
2373 SkOSWindow* create_sk_window(void* hwnd, int argc, char** argv) {
2374     if (false) { // avoid bit rot, suppress warning
2375         test();
2376     }
2377     return new SampleWindow(hwnd, argc, argv, NULL);
2378 }
2379
2380 // FIXME: this should be in a header
2381 void get_preferred_size(int* x, int* y, int* width, int* height);
2382 void get_preferred_size(int* x, int* y, int* width, int* height) {
2383     *x = 10;
2384     *y = 50;
2385     *width = 640;
2386     *height = 480;
2387 }
2388
2389 #ifdef SK_BUILD_FOR_IOS
2390 IOS_launch_type set_cmd_line_args(int , char *[], const char* resourceDir) {
2391     SetResourcePath(resourceDir);
2392     return kApplication__iOSLaunchType;
2393 }
2394 #endif
2395
2396 void application_init() {
2397 //    setenv("ANDROID_ROOT", "../../../data", 0);
2398 #ifdef SK_BUILD_FOR_MAC
2399     setenv("ANDROID_ROOT", "/android/device/data", 0);
2400 #endif
2401     SkGraphics::Init();
2402     SkEvent::Init();
2403 }
2404
2405 void application_term() {
2406     SkEvent::Term();
2407     SkGraphics::Term();
2408 }