SampleApp.cpp revision 53e96a14cac520c1fd071ad65d80b5bacc5c4e28 
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#include "SampleApp.h"
8
9#include "SkData.h"
10#include "SkCanvas.h"
11#include "SkDevice.h"
12#include "SkGpuDevice.h"
13#include "SkGraphics.h"
14#include "SkImageEncoder.h"
15#include "SkPaint.h"
16#include "SkPicture.h"
17#include "SkStream.h"
18#include "SkTime.h"
19#include "SkWindow.h"
20
21#include "SampleCode.h"
22#include "GrContext.h"
23#include "SkTypeface.h"
24
25#include "gl/GrGLInterface.h"
26#include "GrRenderTarget.h"
27
28#include "SkPDFDevice.h"
29#include "SkPDFDocument.h"
30#include "SkStream.h"
31
32#define TEST_GPIPE
33
34#ifdef  TEST_GPIPE
35#define PIPE_FILEx
36#ifdef  PIPE_FILE
37#define FILE_PATH "/path/to/drawing.data"
38#endif
39
40#define PIPE_NETx
41#ifdef  PIPE_NET
42#include "SkSockets.h"
43SkTCPServer gServer;
44#endif
45
46#define DEBUGGERx
47#ifdef  DEBUGGER
48extern SkView* create_debugger(const char* data, size_t size);
49extern bool is_debugger(SkView* view);
50SkTDArray<char> gTempDataStore;
51#endif
52
53#endif
54
55#define USE_ARROWS_FOR_ZOOM true
56
57#if SK_ANGLE
58//#define DEFAULT_TO_ANGLE 1
59#else
60//#define DEFAULT_TO_GPU 1
61#endif
62
63extern SkView* create_overview(int, const SkViewFactory*[]);
64extern bool is_overview(SkView* view);
65extern SkView* create_transition(SkView*, SkView*, int);
66extern bool is_transition(SkView* view);
67
68
69#define ANIMATING_EVENTTYPE "nextSample"
70#define ANIMATING_DELAY     750
71
72#ifdef SK_DEBUG
73    #define FPS_REPEAT_MULTIPLIER   1
74#else
75    #define FPS_REPEAT_MULTIPLIER   10
76#endif
77#define FPS_REPEAT_COUNT    (10 * FPS_REPEAT_MULTIPLIER)
78
79static SampleWindow* gSampleWindow;
80
81static void postEventToSink(SkEvent* evt, SkEventSink* sink) {
82    evt->setTargetID(sink->getSinkID())->post();
83}
84
85///////////////////////////////////////////////////////////////////////////////
86
87static const char* skip_until(const char* str, const char* skip) {
88    if (!str) {
89        return NULL;
90    }
91    return strstr(str, skip);
92}
93
94static const char* skip_past(const char* str, const char* skip) {
95    const char* found = skip_until(str, skip);
96    if (!found) {
97        return NULL;
98    }
99    return found + strlen(skip);
100}
101
102static const char* gPrefFileName = "sampleapp_prefs.txt";
103
104static bool readTitleFromPrefs(SkString* title) {
105    SkFILEStream stream(gPrefFileName);
106    if (!stream.isValid()) {
107        return false;
108    }
109
110    int len = stream.getLength();
111    SkString data(len);
112    stream.read(data.writable_str(), len);
113    const char* s = data.c_str();
114
115    s = skip_past(s, "curr-slide-title");
116    s = skip_past(s, "=");
117    s = skip_past(s, "\"");
118    const char* stop = skip_until(s, "\"");
119    if (stop > s) {
120        title->set(s, stop - s);
121        return true;
122    }
123    return false;
124}
125
126static void writeTitleToPrefs(const char* title) {
127    SkFILEWStream stream(gPrefFileName);
128    SkString data;
129    data.printf("curr-slide-title = \"%s\"\n", title);
130    stream.write(data.c_str(), data.size());
131}
132
133///////////////////////////////////////////////////////////////////////////////
134
135class SampleWindow::DefaultDeviceManager : public SampleWindow::DeviceManager {
136public:
137
138    DefaultDeviceManager()
139        : fCurContext(NULL)
140        , fCurIntf(NULL)
141        , fCurRenderTarget(NULL)
142        , fBackend(kNone_BackEndType) {
143    }
144
145    virtual ~DefaultDeviceManager() {
146        SkSafeUnref(fCurContext);
147        SkSafeUnref(fCurIntf);
148        SkSafeUnref(fCurRenderTarget);
149    }
150
151    virtual void setUpBackend(SampleWindow* win) {
152        SkASSERT(kNone_BackEndType == fBackend);
153
154        fBackend = kNone_BackEndType;
155
156        switch (win->getDeviceType()) {
157            case kRaster_DeviceType:
158                // fallthrough
159            case kPicture_DeviceType:
160                // fallthrough
161            case kGPU_DeviceType:
162                // fallthrough
163            case kNullGPU_DeviceType:
164                // all these guys use the native backend
165                fBackend = kNativeGL_BackEndType;
166                break;
167#if SK_ANGLE
168            case kANGLE_DeviceType:
169                // ANGLE is really the only odd man out
170                fBackend = kANGLE_BackEndType;
171                break;
172#endif
173            default:
174                SkASSERT(false);
175                break;
176        }
177
178        bool result = win->attach(fBackend);
179        if (!result) {
180            SkDebugf("Failed to initialize GL");
181            return;
182        }
183
184        SkASSERT(NULL == fCurIntf);
185        switch (win->getDeviceType()) {
186            case kRaster_DeviceType:
187                // fallthrough
188            case kPicture_DeviceType:
189                // fallthrough
190            case kGPU_DeviceType:
191                // all these guys use the native interface
192                fCurIntf = GrGLCreateNativeInterface();
193                break;
194#if SK_ANGLE
195            case kANGLE_DeviceType:
196                fCurIntf = GrGLCreateANGLEInterface();
197                break;
198#endif
199            case kNullGPU_DeviceType:
200                fCurIntf = GrGLCreateNullInterface();
201                break;
202            default:
203                SkASSERT(false);
204                break;
205        }
206
207        SkASSERT(NULL == fCurContext);
208        fCurContext = GrContext::Create(kOpenGL_Shaders_GrEngine,
209                                        (GrPlatform3DContext) fCurIntf);
210
211        if (NULL == fCurContext || NULL == fCurIntf) {
212            // We need some context and interface to see results
213            SkSafeUnref(fCurContext);
214            SkSafeUnref(fCurIntf);
215            SkDebugf("Failed to setup 3D");
216
217            win->detach();
218        }
219
220        // call windowSizeChanged to create the render target
221        windowSizeChanged(win);
222    }
223
224    virtual void tearDownBackend(SampleWindow *win) {
225        win->detach();
226        fBackend = kNone_BackEndType;
227
228        SkSafeUnref(fCurContext);
229        fCurContext = NULL;
230
231        SkSafeUnref(fCurIntf);
232        fCurIntf = NULL;
233
234        SkSafeUnref(fCurRenderTarget);
235        fCurRenderTarget = NULL;
236    }
237
238    virtual bool prepareCanvas(SampleWindow::DeviceType dType,
239                               SkCanvas* canvas,
240                               SampleWindow* win) {
241        switch (dType) {
242            case kRaster_DeviceType:
243                // fallthrough
244            case kPicture_DeviceType:
245                // fallthrough
246#if SK_ANGLE
247            case kANGLE_DeviceType:
248#endif
249                break;
250            case kGPU_DeviceType:
251            case kNullGPU_DeviceType:
252                if (fCurContext) {
253                    canvas->setDevice(new SkGpuDevice(fCurContext,
254                                                    fCurRenderTarget))->unref();
255                } else {
256                    return false;
257                }
258                break;
259            default:
260                SkASSERT(false);
261                return false;
262        }
263        return true;
264    }
265
266    virtual void publishCanvas(SampleWindow::DeviceType dType,
267                               SkCanvas* canvas,
268                               SampleWindow* win) {
269        if (fCurContext) {
270            // in case we have queued drawing calls
271            fCurContext->flush();
272
273            if (kGPU_DeviceType != dType && kNullGPU_DeviceType != dType) {
274                // need to send the raster bits to the (gpu) window
275                fCurContext->setRenderTarget(fCurRenderTarget);
276                const SkBitmap& bm = win->getBitmap();
277                fCurRenderTarget->writePixels(0, 0, bm.width(), bm.height(),
278                                             kSkia8888_PM_GrPixelConfig,
279                                             bm.getPixels(),
280                                             bm.rowBytes());
281            }
282        }
283
284        win->present();
285    }
286
287    virtual void windowSizeChanged(SampleWindow* win) {
288
289        if (fCurContext) {
290            win->attach(fBackend);
291
292            GrPlatformRenderTargetDesc desc;
293            desc.fWidth = SkScalarRound(win->width());
294            desc.fHeight = SkScalarRound(win->height());
295            desc.fConfig = kSkia8888_PM_GrPixelConfig;
296            GR_GL_GetIntegerv(fCurIntf, GR_GL_SAMPLES, &desc.fSampleCnt);
297            GR_GL_GetIntegerv(fCurIntf, GR_GL_STENCIL_BITS, &desc.fStencilBits);
298            GrGLint buffer;
299            GR_GL_GetIntegerv(fCurIntf, GR_GL_FRAMEBUFFER_BINDING, &buffer);
300            desc.fRenderTargetHandle = buffer;
301
302            SkSafeUnref(fCurRenderTarget);
303            fCurRenderTarget = fCurContext->createPlatformRenderTarget(desc);
304        }
305    }
306
307    virtual GrContext* getGrContext() {
308        return fCurContext;
309    }
310private:
311    GrContext*              fCurContext;
312    const GrGLInterface*    fCurIntf;
313    GrRenderTarget*         fCurRenderTarget;
314
315    SkOSWindow::SkBackEndTypes fBackend;
316
317    typedef SampleWindow::DeviceManager INHERITED;
318};
319
320///////////////
321static const char view_inval_msg[] = "view-inval-msg";
322
323void SampleWindow::postInvalDelay() {
324    (new SkEvent(view_inval_msg, this->getSinkID()))->postDelay(1);
325}
326
327static bool isInvalEvent(const SkEvent& evt) {
328    return evt.isType(view_inval_msg);
329}
330//////////////////
331
332SkFuncViewFactory::SkFuncViewFactory(SkViewCreateFunc func)
333    : fCreateFunc(func) {
334}
335
336SkView* SkFuncViewFactory::operator() () const {
337    return (*fCreateFunc)();
338}
339
340#include "GMSampleView.h"
341
342SkGMSampleViewFactory::SkGMSampleViewFactory(GMFactoryFunc func)
343    : fFunc(func) {
344}
345
346SkView* SkGMSampleViewFactory::operator() () const {
347    return new GMSampleView(fFunc(NULL));
348}
349
350SkViewRegister* SkViewRegister::gHead;
351SkViewRegister::SkViewRegister(SkViewFactory* fact) : fFact(fact) {
352    fFact->ref();
353    fChain = gHead;
354    gHead = this;
355}
356
357SkViewRegister::SkViewRegister(SkViewCreateFunc func) {
358    fFact = new SkFuncViewFactory(func);
359    fChain = gHead;
360    gHead = this;
361}
362
363SkViewRegister::SkViewRegister(GMFactoryFunc func) {
364    fFact = new SkGMSampleViewFactory(func);
365    fChain = gHead;
366    gHead = this;
367}
368
369class AutoUnrefArray {
370public:
371    AutoUnrefArray() {}
372    ~AutoUnrefArray() {
373        int count = fObjs.count();
374        for (int i = 0; i < count; ++i) {
375            fObjs[i]->unref();
376        }
377    }
378    SkRefCnt*& push_back() { return *fObjs.append(); }
379
380private:
381    SkTDArray<SkRefCnt*> fObjs;
382};
383
384// registers GMs as Samples
385// This can't be performed during static initialization because it could be
386// run before GMRegistry has been fully built.
387void SkGMRegistyToSampleRegistry() {
388    static bool gOnce;
389    static AutoUnrefArray fRegisters;
390
391    if (!gOnce) {
392        const skiagm::GMRegistry* gmreg = skiagm::GMRegistry::Head();
393        while (gmreg) {
394            fRegisters.push_back() = new SkViewRegister(gmreg->factory());
395            gmreg = gmreg->next();
396        }
397        gOnce = true;
398    }
399}
400
401#if 0
402#include <CoreFoundation/CoreFoundation.h>
403#include <CoreFoundation/CFURLAccess.h>
404
405static void testpdf() {
406    CFStringRef path = CFStringCreateWithCString(NULL, "/test.pdf",
407                                                 kCFStringEncodingUTF8);
408    CFURLRef url = CFURLCreateWithFileSystemPath(NULL, path,
409                                              kCFURLPOSIXPathStyle,
410                                              false);
411    CFRelease(path);
412    CGRect box = CGRectMake(0, 0, 8*72, 10*72);
413    CGContextRef cg = CGPDFContextCreateWithURL(url, &box, NULL);
414    CFRelease(url);
415
416    CGContextBeginPage(cg, &box);
417    CGRect r = CGRectMake(10, 10, 40 + 0.5, 50 + 0.5);
418    CGContextFillEllipseInRect(cg, r);
419    CGContextEndPage(cg);
420    CGContextRelease(cg);
421
422    if (false) {
423        SkBitmap bm;
424        bm.setConfig(SkBitmap::kA8_Config, 64, 64);
425        bm.allocPixels();
426        bm.eraseColor(0);
427
428        SkCanvas canvas(bm);
429
430    }
431}
432#endif
433
434//////////////////////////////////////////////////////////////////////////////
435
436enum FlipAxisEnum {
437    kFlipAxis_X = (1 << 0),
438    kFlipAxis_Y = (1 << 1)
439};
440
441#include "SkDrawFilter.h"
442
443class FlagsDrawFilter : public SkDrawFilter {
444public:
445    FlagsDrawFilter(SkOSMenu::TriState lcd, SkOSMenu::TriState aa, SkOSMenu::TriState filter,
446                    SkOSMenu::TriState hinting) :
447        fLCDState(lcd), fAAState(aa), fFilterState(filter), fHintingState(hinting) {}
448
449    virtual void filter(SkPaint* paint, Type t) {
450        if (kText_Type == t && SkOSMenu::kMixedState != fLCDState) {
451            paint->setLCDRenderText(SkOSMenu::kOnState == fLCDState);
452        }
453        if (SkOSMenu::kMixedState != fAAState) {
454            paint->setAntiAlias(SkOSMenu::kOnState == fAAState);
455        }
456        if (SkOSMenu::kMixedState != fFilterState) {
457            paint->setFilterBitmap(SkOSMenu::kOnState == fFilterState);
458        }
459        if (SkOSMenu::kMixedState != fHintingState) {
460            paint->setHinting(SkOSMenu::kOnState == fHintingState ?
461                              SkPaint::kNormal_Hinting :
462                              SkPaint::kSlight_Hinting);
463        }
464    }
465
466private:
467    SkOSMenu::TriState  fLCDState;
468    SkOSMenu::TriState  fAAState;
469    SkOSMenu::TriState  fFilterState;
470    SkOSMenu::TriState  fHintingState;
471};
472
473//////////////////////////////////////////////////////////////////////////////
474
475#define MAX_ZOOM_LEVEL  8
476#define MIN_ZOOM_LEVEL  -8
477
478static const char gCharEvtName[] = "SampleCode_Char_Event";
479static const char gKeyEvtName[] = "SampleCode_Key_Event";
480static const char gTitleEvtName[] = "SampleCode_Title_Event";
481static const char gPrefSizeEvtName[] = "SampleCode_PrefSize_Event";
482static const char gFastTextEvtName[] = "SampleCode_FastText_Event";
483static const char gUpdateWindowTitleEvtName[] = "SampleCode_UpdateWindowTitle";
484
485bool SampleCode::CharQ(const SkEvent& evt, SkUnichar* outUni) {
486    if (evt.isType(gCharEvtName, sizeof(gCharEvtName) - 1)) {
487        if (outUni) {
488            *outUni = evt.getFast32();
489        }
490        return true;
491    }
492    return false;
493}
494
495bool SampleCode::KeyQ(const SkEvent& evt, SkKey* outKey) {
496    if (evt.isType(gKeyEvtName, sizeof(gKeyEvtName) - 1)) {
497        if (outKey) {
498            *outKey = (SkKey)evt.getFast32();
499        }
500        return true;
501    }
502    return false;
503}
504
505bool SampleCode::TitleQ(const SkEvent& evt) {
506    return evt.isType(gTitleEvtName, sizeof(gTitleEvtName) - 1);
507}
508
509void SampleCode::TitleR(SkEvent* evt, const char title[]) {
510    SkASSERT(evt && TitleQ(*evt));
511    evt->setString(gTitleEvtName, title);
512}
513
514bool SampleCode::RequestTitle(SkView* view, SkString* title) {
515    SkEvent evt(gTitleEvtName);
516    if (view->doQuery(&evt)) {
517        title->set(evt.findString(gTitleEvtName));
518        return true;
519    }
520    return false;
521}
522
523bool SampleCode::PrefSizeQ(const SkEvent& evt) {
524    return evt.isType(gPrefSizeEvtName, sizeof(gPrefSizeEvtName) - 1);
525}
526
527void SampleCode::PrefSizeR(SkEvent* evt, SkScalar width, SkScalar height) {
528    SkASSERT(evt && PrefSizeQ(*evt));
529    SkScalar size[2];
530    size[0] = width;
531    size[1] = height;
532    evt->setScalars(gPrefSizeEvtName, 2, size);
533}
534
535bool SampleCode::FastTextQ(const SkEvent& evt) {
536    return evt.isType(gFastTextEvtName, sizeof(gFastTextEvtName) - 1);
537}
538
539///////////////////////////////////////////////////////////////////////////////
540
541static SkMSec gAnimTime;
542static SkMSec gAnimTimePrev;
543
544SkMSec SampleCode::GetAnimTime() { return gAnimTime; }
545SkMSec SampleCode::GetAnimTimeDelta() { return gAnimTime - gAnimTimePrev; }
546SkScalar SampleCode::GetAnimSecondsDelta() {
547    return SkDoubleToScalar(GetAnimTimeDelta() / 1000.0);
548}
549
550SkScalar SampleCode::GetAnimScalar(SkScalar speed, SkScalar period) {
551    // since gAnimTime can be up to 32 bits, we can't convert it to a float
552    // or we'll lose the low bits. Hence we use doubles for the intermediate
553    // calculations
554    double seconds = (double)gAnimTime / 1000.0;
555    double value = SkScalarToDouble(speed) * seconds;
556    if (period) {
557        value = ::fmod(value, SkScalarToDouble(period));
558    }
559    return SkDoubleToScalar(value);
560}
561
562SkScalar SampleCode::GetAnimSinScalar(SkScalar amplitude,
563                                      SkScalar periodInSec,
564                                      SkScalar phaseInSec) {
565    if (!periodInSec) {
566        return 0;
567    }
568    double t = (double)gAnimTime / 1000.0 + phaseInSec;
569    t *= SkScalarToFloat(2 * SK_ScalarPI) / periodInSec;
570    amplitude = SK_ScalarHalf * amplitude;
571    return SkScalarMul(amplitude, SkDoubleToScalar(sin(t))) + amplitude;
572}
573
574GrContext* SampleCode::GetGr() {
575    return gSampleWindow ? gSampleWindow->getGrContext() : NULL;
576}
577
578// some GMs rely on having a skiagm::GetGr function defined
579namespace skiagm {
580    GrContext* GetGr() { return SampleCode::GetGr(); }
581}
582
583//////////////////////////////////////////////////////////////////////////////
584
585static SkView* curr_view(SkWindow* wind) {
586    SkView::F2BIter iter(wind);
587    return iter.next();
588}
589
590static bool curr_title(SkWindow* wind, SkString* title) {
591    SkView* view = curr_view(wind);
592    if (view) {
593        SkEvent evt(gTitleEvtName);
594        if (view->doQuery(&evt)) {
595            title->set(evt.findString(gTitleEvtName));
596            return true;
597        }
598    }
599    return false;
600}
601
602void SampleWindow::setZoomCenter(float x, float y)
603{
604    fZoomCenterX = SkFloatToScalar(x);
605    fZoomCenterY = SkFloatToScalar(y);
606}
607
608bool SampleWindow::zoomIn()
609{
610    // Arbitrarily decided
611    if (fFatBitsScale == 25) return false;
612    fFatBitsScale++;
613    this->inval(NULL);
614    return true;
615}
616
617bool SampleWindow::zoomOut()
618{
619    if (fFatBitsScale == 1) return false;
620    fFatBitsScale--;
621    this->inval(NULL);
622    return true;
623}
624
625void SampleWindow::updatePointer(int x, int y)
626{
627    fMouseX = x;
628    fMouseY = y;
629    if (fShowZoomer) {
630        this->inval(NULL);
631    }
632}
633
634static inline SampleWindow::DeviceType cycle_devicetype(SampleWindow::DeviceType ct) {
635    static const SampleWindow::DeviceType gCT[] = {
636        SampleWindow::kPicture_DeviceType,
637        SampleWindow::kGPU_DeviceType,
638#if SK_ANGLE
639        SampleWindow::kANGLE_DeviceType,
640#endif
641        SampleWindow::kRaster_DeviceType, // skip the null gpu device in normal cycling
642        SampleWindow::kRaster_DeviceType
643    };
644    return gCT[ct];
645}
646
647static void usage(const char * argv0) {
648    SkDebugf("%s [--slide sampleName] [-i resourcePath]\n", argv0);
649    SkDebugf("    sampleName: sample at which to start.\n");
650    SkDebugf("    resourcePath: directory that stores image resources.\n");
651}
652
653SampleWindow::SampleWindow(void* hwnd, int argc, char** argv, DeviceManager* devManager) : INHERITED(hwnd) {
654
655    SkGMRegistyToSampleRegistry();
656    {
657        const SkViewRegister* reg = SkViewRegister::Head();
658        while (reg) {
659            *fSamples.append() = reg->factory();
660            reg = reg->next();
661        }
662    }
663
664    const char* resourcePath = NULL;
665    fCurrIndex = -1;
666
667    const char* const commandName = argv[0];
668    char* const* stop = argv + argc;
669    for (++argv; argv < stop; ++argv) {
670        if (strcmp(*argv, "-i") == 0) {
671            argv++;
672            if (argv < stop && **argv) {
673                resourcePath = *argv;
674            }
675        } else if (strcmp(*argv, "--slide") == 0) {
676            argv++;
677            if (argv < stop && **argv) {
678                fCurrIndex = findByTitle(*argv);
679                if (fCurrIndex < 0) {
680                    fprintf(stderr, "Unknown sample \"%s\"\n", *argv);
681                }
682            }
683        }
684        else {
685            usage(commandName);
686        }
687    }
688
689    if (fCurrIndex < 0) {
690        SkString title;
691        if (readTitleFromPrefs(&title)) {
692            fCurrIndex = findByTitle(title.c_str());
693        }
694    }
695
696    if (fCurrIndex < 0) {
697        fCurrIndex = 0;
698    }
699
700    gSampleWindow = this;
701
702#ifdef  PIPE_FILE
703    //Clear existing file or create file if it doesn't exist
704    FILE* f = fopen(FILE_PATH, "wb");
705    fclose(f);
706#endif
707
708    fPicture = NULL;
709
710    fDeviceType = kRaster_DeviceType;
711
712#if DEFAULT_TO_GPU
713    fDeviceType = kGPU_DeviceType;
714#endif
715#if SK_ANGLE && DEFAULT_TO_ANGLE
716    fDeviceType = kANGLE_DeviceType;
717#endif
718
719    fUseClip = false;
720    fNClip = false;
721    fAnimating = false;
722    fRotate = false;
723    fPerspAnim = false;
724    fPerspAnimTime = 0;
725    fScale = false;
726    fRequestGrabImage = false;
727    fUsePipe = false;
728    fMeasureFPS = false;
729    fLCDState = SkOSMenu::kMixedState;
730    fAAState = SkOSMenu::kMixedState;
731    fFilterState = SkOSMenu::kMixedState;
732    fHintingState = SkOSMenu::kMixedState;
733    fFlipAxis = 0;
734    fScrollTestX = fScrollTestY = 0;
735
736    fMouseX = fMouseY = 0;
737    fFatBitsScale = 8;
738    fTypeface = SkTypeface::CreateFromTypeface(NULL, SkTypeface::kBold);
739    fShowZoomer = false;
740
741    fZoomLevel = 0;
742    fZoomScale = SK_Scalar1;
743
744    fMagnify = false;
745    fDebugger = false;
746
747    fSaveToPdf = false;
748    fPdfCanvas = NULL;
749
750    fTransitionNext = 6;
751    fTransitionPrev = 2;
752
753    int sinkID = this->getSinkID();
754    fAppMenu.setTitle("Global Settings");
755    int itemID;
756
757    itemID =fAppMenu.appendList("Device Type", "Device Type", sinkID, 0,
758                                "Raster", "Picture", "OpenGL",
759#if SK_ANGLE
760                                "ANGLE",
761#endif
762                                NULL);
763    fAppMenu.assignKeyEquivalentToItem(itemID, 'd');
764    itemID = fAppMenu.appendTriState("AA", "AA", sinkID, fAAState);
765    fAppMenu.assignKeyEquivalentToItem(itemID, 'b');
766    itemID = fAppMenu.appendTriState("LCD", "LCD", sinkID, fLCDState);
767    fAppMenu.assignKeyEquivalentToItem(itemID, 'l');
768    itemID = fAppMenu.appendTriState("Filter", "Filter", sinkID, fFilterState);
769    fAppMenu.assignKeyEquivalentToItem(itemID, 'n');
770    itemID = fAppMenu.appendTriState("Hinting", "Hinting", sinkID, fHintingState);
771    fAppMenu.assignKeyEquivalentToItem(itemID, 'h');
772    fUsePipeMenuItemID = fAppMenu.appendSwitch("Pipe", "Pipe" , sinkID, fUsePipe);
773    fAppMenu.assignKeyEquivalentToItem(fUsePipeMenuItemID, 'p');
774#ifdef DEBUGGER
775    itemID = fAppMenu.appendSwitch("Debugger", "Debugger", sinkID, fDebugger);
776    fAppMenu.assignKeyEquivalentToItem(itemID, 'q');
777#endif
778    itemID = fAppMenu.appendSwitch("Slide Show", "Slide Show" , sinkID, false);
779    fAppMenu.assignKeyEquivalentToItem(itemID, 'a');
780    itemID = fAppMenu.appendSwitch("Clip", "Clip" , sinkID, fUseClip);
781    fAppMenu.assignKeyEquivalentToItem(itemID, 'c');
782    itemID = fAppMenu.appendSwitch("Flip X", "Flip X" , sinkID, false);
783    fAppMenu.assignKeyEquivalentToItem(itemID, 'x');
784    itemID = fAppMenu.appendSwitch("Flip Y", "Flip Y" , sinkID, false);
785    fAppMenu.assignKeyEquivalentToItem(itemID, 'y');
786    itemID = fAppMenu.appendSwitch("Zoomer", "Zoomer" , sinkID, fShowZoomer);
787    fAppMenu.assignKeyEquivalentToItem(itemID, 'z');
788    itemID = fAppMenu.appendSwitch("Magnify", "Magnify" , sinkID, fMagnify);
789    fAppMenu.assignKeyEquivalentToItem(itemID, 'm');
790    itemID =fAppMenu.appendList("Transition-Next", "Transition-Next", sinkID,
791                                fTransitionNext, "Up", "Up and Right", "Right",
792                                "Down and Right", "Down", "Down and Left",
793                                "Left", "Up and Left", NULL);
794    fAppMenu.assignKeyEquivalentToItem(itemID, 'j');
795    itemID =fAppMenu.appendList("Transition-Prev", "Transition-Prev", sinkID,
796                                fTransitionPrev, "Up", "Up and Right", "Right",
797                                "Down and Right", "Down", "Down and Left",
798                                "Left", "Up and Left", NULL);
799    fAppMenu.assignKeyEquivalentToItem(itemID, 'k');
800    itemID = fAppMenu.appendAction("Save to PDF", sinkID);
801    fAppMenu.assignKeyEquivalentToItem(itemID, 'e');
802
803    this->addMenu(&fAppMenu);
804    this->addMenu(&fSlideMenu);
805
806//    this->setConfig(SkBitmap::kRGB_565_Config);
807    this->setConfig(SkBitmap::kARGB_8888_Config);
808    this->setVisibleP(true);
809    this->setClipToBounds(false);
810
811    skiagm::GM::SetResourcePath(resourcePath);
812
813    this->loadView((*fSamples[fCurrIndex])());
814
815    fPDFData = NULL;
816
817    if (NULL == devManager) {
818        fDevManager = new DefaultDeviceManager();
819    } else {
820        devManager->ref();
821        fDevManager = devManager;
822    }
823    fDevManager->setUpBackend(this);
824
825    // If another constructor set our dimensions, ensure that our
826    // onSizeChange gets called.
827    if (this->height() && this->width()) {
828        this->onSizeChange();
829    }
830
831    // can't call this synchronously, since it may require a subclass to
832    // to implement, or the caller may need us to have returned from the
833    // constructor first. Hence we post an event to ourselves.
834//    this->updateTitle();
835    postEventToSink(new SkEvent(gUpdateWindowTitleEvtName), this);
836}
837
838SampleWindow::~SampleWindow() {
839    delete fPicture;
840    delete fPdfCanvas;
841    fTypeface->unref();
842
843    SkSafeUnref(fDevManager);
844}
845
846int SampleWindow::findByTitle(const char title[]) {
847    int i, count = fSamples.count();
848    for (i = 0; i < count; i++) {
849        if (getSampleTitle(i).equals(title)) {
850            return i;
851        }
852    }
853    return -1;
854}
855
856static SkBitmap capture_bitmap(SkCanvas* canvas) {
857    SkBitmap bm;
858    const SkBitmap& src = canvas->getDevice()->accessBitmap(false);
859    src.copyTo(&bm, src.config());
860    return bm;
861}
862
863static bool bitmap_diff(SkCanvas* canvas, const SkBitmap& orig,
864                        SkBitmap* diff) {
865    const SkBitmap& src = canvas->getDevice()->accessBitmap(false);
866
867    SkAutoLockPixels alp0(src);
868    SkAutoLockPixels alp1(orig);
869    for (int y = 0; y < src.height(); y++) {
870        const void* srcP = src.getAddr(0, y);
871        const void* origP = orig.getAddr(0, y);
872        size_t bytes = src.width() * src.bytesPerPixel();
873        if (memcmp(srcP, origP, bytes)) {
874            SkDebugf("---------- difference on line %d\n", y);
875            return true;
876        }
877    }
878    return false;
879}
880
881static void drawText(SkCanvas* canvas, SkString string, SkScalar left, SkScalar top, SkPaint& paint)
882{
883    SkColor desiredColor = paint.getColor();
884    paint.setColor(SK_ColorWHITE);
885    const char* c_str = string.c_str();
886    size_t size = string.size();
887    SkRect bounds;
888    paint.measureText(c_str, size, &bounds);
889    bounds.offset(left, top);
890    SkScalar inset = SkIntToScalar(-2);
891    bounds.inset(inset, inset);
892    canvas->drawRect(bounds, paint);
893    if (desiredColor != SK_ColorBLACK) {
894        paint.setColor(SK_ColorBLACK);
895        canvas->drawText(c_str, size, left + SK_Scalar1, top + SK_Scalar1, paint);
896    }
897    paint.setColor(desiredColor);
898    canvas->drawText(c_str, size, left, top, paint);
899}
900
901#define XCLIP_N  8
902#define YCLIP_N  8
903
904void SampleWindow::draw(SkCanvas* canvas) {
905    if (!fDevManager->prepareCanvas(fDeviceType, canvas, this)) {
906        return;
907    }
908    // update the animation time
909    if (!gAnimTimePrev && !gAnimTime) {
910        // first time make delta be 0
911        gAnimTime = SkTime::GetMSecs();
912        gAnimTimePrev = gAnimTime;
913    } else {
914        gAnimTimePrev = gAnimTime;
915        gAnimTime = SkTime::GetMSecs();
916    }
917
918    const SkMatrix& localM = fGesture.localM();
919    if (localM.getType() & SkMatrix::kScale_Mask) {
920        canvas->setExternalMatrix(&localM);
921    }
922    if (fGesture.isActive()) {
923        this->updateMatrix();
924    }
925
926    if (fNClip) {
927        this->INHERITED::draw(canvas);
928        SkBitmap orig = capture_bitmap(canvas);
929
930        const SkScalar w = this->width();
931        const SkScalar h = this->height();
932        const SkScalar cw = w / XCLIP_N;
933        const SkScalar ch = h / YCLIP_N;
934        for (int y = 0; y < YCLIP_N; y++) {
935            SkRect r;
936            r.fTop = y * ch;
937            r.fBottom = (y + 1) * ch;
938            if (y == YCLIP_N - 1) {
939                r.fBottom = h;
940            }
941            for (int x = 0; x < XCLIP_N; x++) {
942                SkAutoCanvasRestore acr(canvas, true);
943                r.fLeft = x * cw;
944                r.fRight = (x + 1) * cw;
945                if (x == XCLIP_N - 1) {
946                    r.fRight = w;
947                }
948                canvas->clipRect(r);
949                this->INHERITED::draw(canvas);
950            }
951        }
952
953        SkBitmap diff;
954        if (bitmap_diff(canvas, orig, &diff)) {
955        }
956    } else {
957        this->INHERITED::draw(canvas);
958    }
959    if (fShowZoomer && !fSaveToPdf) {
960        showZoomer(canvas);
961    }
962    if (fMagnify && !fSaveToPdf) {
963        magnify(canvas);
964    }
965
966    // do this last
967    fDevManager->publishCanvas(fDeviceType, canvas, this);
968}
969
970static float clipW = 200;
971static float clipH = 200;
972void SampleWindow::magnify(SkCanvas* canvas) {
973    SkRect r;
974    int count = canvas->save();
975
976    SkMatrix m = canvas->getTotalMatrix();
977    m.invert(&m);
978    SkPoint offset, center;
979    SkScalar mouseX = fMouseX * SK_Scalar1;
980    SkScalar mouseY = fMouseY * SK_Scalar1;
981    m.mapXY(mouseX - clipW/2, mouseY - clipH/2, &offset);
982    m.mapXY(mouseX, mouseY, &center);
983
984    r.set(0, 0, clipW * m.getScaleX(), clipH * m.getScaleX());
985    r.offset(offset.fX, offset.fY);
986
987    SkPaint paint;
988    paint.setColor(0xFF66AAEE);
989    paint.setStyle(SkPaint::kStroke_Style);
990    paint.setStrokeWidth(10.f * m.getScaleX());
991    //lense offset
992    //canvas->translate(0, -250);
993    canvas->drawRect(r, paint);
994    canvas->clipRect(r);
995
996    m = canvas->getTotalMatrix();
997    m.setTranslate(-center.fX, -center.fY);
998    m.postScale(0.5f * fFatBitsScale, 0.5f * fFatBitsScale);
999    m.postTranslate(center.fX, center.fY);
1000    canvas->concat(m);
1001
1002    this->INHERITED::draw(canvas);
1003
1004    canvas->restoreToCount(count);
1005}
1006
1007void SampleWindow::showZoomer(SkCanvas* canvas) {
1008        int count = canvas->save();
1009        canvas->resetMatrix();
1010        // Ensure the mouse position is on screen.
1011        int width = SkScalarRound(this->width());
1012        int height = SkScalarRound(this->height());
1013        if (fMouseX >= width) fMouseX = width - 1;
1014        else if (fMouseX < 0) fMouseX = 0;
1015        if (fMouseY >= height) fMouseY = height - 1;
1016        else if (fMouseY < 0) fMouseY = 0;
1017
1018        SkBitmap bitmap = capture_bitmap(canvas);
1019        bitmap.lockPixels();
1020
1021        // Find the size of the zoomed in view, forced to be odd, so the examined pixel is in the middle.
1022        int zoomedWidth = (width >> 1) | 1;
1023        int zoomedHeight = (height >> 1) | 1;
1024        SkIRect src;
1025        src.set(0, 0, zoomedWidth / fFatBitsScale, zoomedHeight / fFatBitsScale);
1026        src.offset(fMouseX - (src.width()>>1), fMouseY - (src.height()>>1));
1027        SkRect dest;
1028        dest.set(0, 0, SkIntToScalar(zoomedWidth), SkIntToScalar(zoomedHeight));
1029        dest.offset(SkIntToScalar(width - zoomedWidth), SkIntToScalar(height - zoomedHeight));
1030        SkPaint paint;
1031        // Clear the background behind our zoomed in view
1032        paint.setColor(SK_ColorWHITE);
1033        canvas->drawRect(dest, paint);
1034        canvas->drawBitmapRect(bitmap, &src, dest);
1035        paint.setColor(SK_ColorBLACK);
1036        paint.setStyle(SkPaint::kStroke_Style);
1037        // Draw a border around the pixel in the middle
1038        SkRect originalPixel;
1039        originalPixel.set(SkIntToScalar(fMouseX), SkIntToScalar(fMouseY), SkIntToScalar(fMouseX + 1), SkIntToScalar(fMouseY + 1));
1040        SkMatrix matrix;
1041        SkRect scalarSrc;
1042        scalarSrc.set(src);
1043        SkColor color = bitmap.getColor(fMouseX, fMouseY);
1044        if (matrix.setRectToRect(scalarSrc, dest, SkMatrix::kFill_ScaleToFit)) {
1045            SkRect pixel;
1046            matrix.mapRect(&pixel, originalPixel);
1047            // TODO Perhaps measure the values and make the outline white if it's "dark"
1048            if (color == SK_ColorBLACK) {
1049                paint.setColor(SK_ColorWHITE);
1050            }
1051            canvas->drawRect(pixel, paint);
1052        }
1053        paint.setColor(SK_ColorBLACK);
1054        // Draw a border around the destination rectangle
1055        canvas->drawRect(dest, paint);
1056        paint.setStyle(SkPaint::kStrokeAndFill_Style);
1057        // Identify the pixel and its color on screen
1058        paint.setTypeface(fTypeface);
1059        paint.setAntiAlias(true);
1060        SkScalar lineHeight = paint.getFontMetrics(NULL);
1061        SkString string;
1062        string.appendf("(%i, %i)", fMouseX, fMouseY);
1063        SkScalar left = dest.fLeft + SkIntToScalar(3);
1064        SkScalar i = SK_Scalar1;
1065        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1066        // Alpha
1067        i += SK_Scalar1;
1068        string.reset();
1069        string.appendf("A: %X", SkColorGetA(color));
1070        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1071        // Red
1072        i += SK_Scalar1;
1073        string.reset();
1074        string.appendf("R: %X", SkColorGetR(color));
1075        paint.setColor(SK_ColorRED);
1076        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1077        // Green
1078        i += SK_Scalar1;
1079        string.reset();
1080        string.appendf("G: %X", SkColorGetG(color));
1081        paint.setColor(SK_ColorGREEN);
1082        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1083        // Blue
1084        i += SK_Scalar1;
1085        string.reset();
1086        string.appendf("B: %X", SkColorGetB(color));
1087        paint.setColor(SK_ColorBLUE);
1088        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1089        canvas->restoreToCount(count);
1090}
1091
1092void SampleWindow::onDraw(SkCanvas* canvas) {
1093}
1094
1095#include "SkColorPriv.h"
1096
1097static void reverseRedAndBlue(const SkBitmap& bm) {
1098    SkASSERT(bm.config() == SkBitmap::kARGB_8888_Config);
1099    uint8_t* p = (uint8_t*)bm.getPixels();
1100    uint8_t* stop = p + bm.getSize();
1101    while (p < stop) {
1102        // swap red/blue (to go from ARGB(int) to RGBA(memory) and premultiply
1103        unsigned scale = SkAlpha255To256(p[3]);
1104        unsigned r = p[2];
1105        unsigned b = p[0];
1106        p[0] = SkAlphaMul(r, scale);
1107        p[1] = SkAlphaMul(p[1], scale);
1108        p[2] = SkAlphaMul(b, scale);
1109        p += 4;
1110    }
1111}
1112
1113void SampleWindow::saveToPdf()
1114{
1115    fSaveToPdf = true;
1116    this->inval(NULL);
1117}
1118
1119SkCanvas* SampleWindow::beforeChildren(SkCanvas* canvas) {
1120    if (fSaveToPdf) {
1121        const SkBitmap& bmp = canvas->getDevice()->accessBitmap(false);
1122        SkISize size = SkISize::Make(bmp.width(), bmp.height());
1123        SkPDFDevice* pdfDevice = new SkPDFDevice(size, size,
1124                canvas->getTotalMatrix());
1125        fPdfCanvas = new SkCanvas(pdfDevice);
1126        pdfDevice->unref();
1127        canvas = fPdfCanvas;
1128    } else {
1129        switch (fDeviceType) {
1130            case kRaster_DeviceType:
1131                // fallthrough
1132            case kGPU_DeviceType:
1133                // fallthrough
1134#if SK_ANGLE
1135            case kANGLE_DeviceType:
1136#endif
1137                canvas = this->INHERITED::beforeChildren(canvas);
1138                break;
1139            case kPicture_DeviceType:
1140                fPicture = new SkPicture;
1141                canvas = fPicture->beginRecording(9999, 9999);
1142                break;
1143            case kNullGPU_DeviceType:
1144                break;
1145            default:
1146                SkASSERT(false);
1147                break;
1148        }
1149    }
1150
1151    if (fUseClip) {
1152        canvas->drawColor(0xFFFF88FF);
1153        canvas->clipPath(fClipPath, SkRegion::kIntersect_Op, true);
1154    }
1155
1156    return canvas;
1157}
1158
1159static void paint_rgn(const SkBitmap& bm, const SkIRect& r,
1160                      const SkRegion& rgn) {
1161    SkCanvas    canvas(bm);
1162    SkRegion    inval(rgn);
1163
1164    inval.translate(r.fLeft, r.fTop);
1165    canvas.clipRegion(inval);
1166    canvas.drawColor(0xFFFF8080);
1167}
1168#include "SkData.h"
1169void SampleWindow::afterChildren(SkCanvas* orig) {
1170    if (fSaveToPdf) {
1171        fSaveToPdf = false;
1172        if (fShowZoomer) {
1173            showZoomer(fPdfCanvas);
1174        }
1175        SkString name;
1176        name.printf("%s.pdf", this->getTitle());
1177        SkPDFDocument doc;
1178        SkPDFDevice* device = static_cast<SkPDFDevice*>(fPdfCanvas->getDevice());
1179        doc.appendPage(device);
1180#ifdef SK_BUILD_FOR_ANDROID
1181        name.prepend("/sdcard/");
1182#endif
1183
1184#ifdef SK_BUILD_FOR_IOS
1185        SkDynamicMemoryWStream mstream;
1186        doc.emitPDF(&mstream);
1187        fPDFData = mstream.copyToData();
1188#endif
1189        SkFILEWStream stream(name.c_str());
1190        if (stream.isValid()) {
1191            doc.emitPDF(&stream);
1192            const char* desc = "File saved from Skia SampleApp";
1193            this->onPDFSaved(this->getTitle(), desc, name.c_str());
1194        }
1195
1196        delete fPdfCanvas;
1197        fPdfCanvas = NULL;
1198
1199        // We took over the draw calls in order to create the PDF, so we need
1200        // to redraw.
1201        this->inval(NULL);
1202        return;
1203    }
1204
1205    if (fRequestGrabImage) {
1206        fRequestGrabImage = false;
1207
1208        SkDevice* device = orig->getDevice();
1209        SkBitmap bmp;
1210        if (device->accessBitmap(false).copyTo(&bmp, SkBitmap::kARGB_8888_Config)) {
1211            static int gSampleGrabCounter;
1212            SkString name;
1213            name.printf("sample_grab_%d", gSampleGrabCounter++);
1214            SkImageEncoder::EncodeFile(name.c_str(), bmp,
1215                                       SkImageEncoder::kPNG_Type, 100);
1216        }
1217    }
1218
1219    if (kPicture_DeviceType == fDeviceType) {
1220        if (true) {
1221            SkPicture* pict = new SkPicture(*fPicture);
1222            fPicture->unref();
1223            this->installDrawFilter(orig);
1224            orig->drawPicture(*pict);
1225            pict->unref();
1226        } else if (true) {
1227            SkDynamicMemoryWStream ostream;
1228            fPicture->serialize(&ostream);
1229            fPicture->unref();
1230
1231            SkAutoDataUnref data(ostream.copyToData());
1232            SkMemoryStream istream(data.data(), data.size());
1233            SkPicture pict(&istream);
1234            orig->drawPicture(pict);
1235        } else {
1236            fPicture->draw(orig);
1237            fPicture->unref();
1238        }
1239        fPicture = NULL;
1240    }
1241
1242    // Do this after presentGL and other finishing, rather than in afterChild
1243    if (fMeasureFPS && fMeasureFPS_Time) {
1244        fMeasureFPS_Time = SkTime::GetMSecs() - fMeasureFPS_Time;
1245        this->updateTitle();
1246        this->postInvalDelay();
1247    }
1248
1249    //    if ((fScrollTestX | fScrollTestY) != 0)
1250    if (false) {
1251        const SkBitmap& bm = orig->getDevice()->accessBitmap(true);
1252        int dx = fScrollTestX * 7;
1253        int dy = fScrollTestY * 7;
1254        SkIRect r;
1255        SkRegion inval;
1256
1257        r.set(50, 50, 50+100, 50+100);
1258        bm.scrollRect(&r, dx, dy, &inval);
1259        paint_rgn(bm, r, inval);
1260    }
1261#ifdef DEBUGGER
1262    SkView* curr = curr_view(this);
1263    if (fDebugger && !is_debugger(curr) && !is_transition(curr) && !is_overview(curr)) {
1264        //Stop Pipe when fDebugger is active
1265        fUsePipe = false;
1266        (void)SampleView::SetUsePipe(curr, false);
1267        fAppMenu.getItemByID(fUsePipeMenuItemID)->setBool(fUsePipe);
1268        this->onUpdateMenu(&fAppMenu);
1269
1270        //Reset any transformations
1271        fGesture.stop();
1272        fGesture.reset();
1273
1274        this->loadView(create_debugger(gTempDataStore.begin(),
1275                                       gTempDataStore.count()));
1276    }
1277#endif
1278}
1279
1280void SampleWindow::beforeChild(SkView* child, SkCanvas* canvas) {
1281    if (fScale) {
1282        SkScalar scale = SK_Scalar1 * 7 / 10;
1283        SkScalar cx = this->width() / 2;
1284        SkScalar cy = this->height() / 2;
1285        canvas->translate(cx, cy);
1286        canvas->scale(scale, scale);
1287        canvas->translate(-cx, -cy);
1288    }
1289    if (fRotate) {
1290        SkScalar cx = this->width() / 2;
1291        SkScalar cy = this->height() / 2;
1292        canvas->translate(cx, cy);
1293        canvas->rotate(SkIntToScalar(30));
1294        canvas->translate(-cx, -cy);
1295    }
1296    if (fPerspAnim) {
1297        fPerspAnimTime += SampleCode::GetAnimSecondsDelta();
1298
1299        static const SkScalar gAnimPeriod = 10 * SK_Scalar1;
1300        static const SkScalar gAnimMag = SK_Scalar1 / 1000;
1301        SkScalar t = SkScalarMod(fPerspAnimTime, gAnimPeriod);
1302        if (SkScalarFloorToInt(SkScalarDiv(fPerspAnimTime, gAnimPeriod)) & 0x1) {
1303            t = gAnimPeriod - t;
1304        }
1305        t = 2 * t - gAnimPeriod;
1306        t = SkScalarMul(SkScalarDiv(t, gAnimPeriod), gAnimMag);
1307        SkMatrix m;
1308        m.reset();
1309        m.setPerspY(t);
1310        canvas->concat(m);
1311    }
1312
1313    this->installDrawFilter(canvas);
1314
1315    if (fMeasureFPS) {
1316        fMeasureFPS_Time = 0;   // 0 means the child is not aware of repeat-draw
1317        if (SampleView::SetRepeatDraw(child, FPS_REPEAT_COUNT)) {
1318            fMeasureFPS_Time = SkTime::GetMSecs();
1319        }
1320    } else {
1321        (void)SampleView::SetRepeatDraw(child, 1);
1322    }
1323    if (fPerspAnim) {
1324        this->inval(NULL);
1325    }
1326    //(void)SampleView::SetUsePipe(child, fUsePipe);
1327}
1328
1329void SampleWindow::afterChild(SkView* child, SkCanvas* canvas) {
1330    canvas->setDrawFilter(NULL);
1331}
1332
1333static SkBitmap::Config gConfigCycle[] = {
1334    SkBitmap::kNo_Config,           // none -> none
1335    SkBitmap::kNo_Config,           // a1 -> none
1336    SkBitmap::kNo_Config,           // a8 -> none
1337    SkBitmap::kNo_Config,           // index8 -> none
1338    SkBitmap::kARGB_4444_Config,    // 565 -> 4444
1339    SkBitmap::kARGB_8888_Config,    // 4444 -> 8888
1340    SkBitmap::kRGB_565_Config       // 8888 -> 565
1341};
1342
1343static SkBitmap::Config cycle_configs(SkBitmap::Config c) {
1344    return gConfigCycle[c];
1345}
1346
1347void SampleWindow::changeZoomLevel(float delta) {
1348    fZoomLevel += SkFloatToScalar(delta);
1349    if (fZoomLevel > 0) {
1350        fZoomLevel = SkMinScalar(fZoomLevel, MAX_ZOOM_LEVEL);
1351        fZoomScale = fZoomLevel + SK_Scalar1;
1352    } else if (fZoomLevel < 0) {
1353        fZoomLevel = SkMaxScalar(fZoomLevel, MIN_ZOOM_LEVEL);
1354        fZoomScale = SK_Scalar1 / (SK_Scalar1 - fZoomLevel);
1355    } else {
1356        fZoomScale = SK_Scalar1;
1357    }
1358    this->updateMatrix();
1359}
1360
1361void SampleWindow::updateMatrix(){
1362    SkMatrix m;
1363    m.reset();
1364    if (fZoomLevel) {
1365        SkPoint center;
1366        //m = this->getLocalMatrix();//.invert(&m);
1367        m.mapXY(fZoomCenterX, fZoomCenterY, &center);
1368        SkScalar cx = center.fX;
1369        SkScalar cy = center.fY;
1370
1371        m.setTranslate(-cx, -cy);
1372        m.postScale(fZoomScale, fZoomScale);
1373        m.postTranslate(cx, cy);
1374    }
1375
1376    if (fFlipAxis) {
1377        m.preTranslate(fZoomCenterX, fZoomCenterY);
1378        if (fFlipAxis & kFlipAxis_X) {
1379            m.preScale(-SK_Scalar1, SK_Scalar1);
1380        }
1381        if (fFlipAxis & kFlipAxis_Y) {
1382            m.preScale(SK_Scalar1, -SK_Scalar1);
1383        }
1384        m.preTranslate(-fZoomCenterX, -fZoomCenterY);
1385        //canvas->concat(m);
1386    }
1387    // Apply any gesture matrix
1388    m.preConcat(fGesture.localM());
1389    m.preConcat(fGesture.globalM());
1390
1391    this->setLocalMatrix(m);
1392
1393    this->updateTitle();
1394    this->inval(NULL);
1395}
1396bool SampleWindow::previousSample() {
1397    fCurrIndex = (fCurrIndex - 1 + fSamples.count()) % fSamples.count();
1398    this->loadView(create_transition(curr_view(this), (*fSamples[fCurrIndex])(),
1399                                     fTransitionPrev));
1400    return true;
1401}
1402
1403bool SampleWindow::nextSample() {
1404    fCurrIndex = (fCurrIndex + 1) % fSamples.count();
1405    this->loadView(create_transition(curr_view(this), (*fSamples[fCurrIndex])(),
1406                                     fTransitionNext));
1407    return true;
1408}
1409
1410bool SampleWindow::goToSample(int i) {
1411    fCurrIndex = (i) % fSamples.count();
1412    this->loadView(create_transition(curr_view(this),(*fSamples[fCurrIndex])(), 6));
1413    return true;
1414}
1415
1416SkString SampleWindow::getSampleTitle(int i) {
1417    SkView* view = (*fSamples[i])();
1418    SkString title;
1419    SampleCode::RequestTitle(view, &title);
1420    view->unref();
1421    return title;
1422}
1423
1424int SampleWindow::sampleCount() {
1425    return fSamples.count();
1426}
1427
1428void SampleWindow::showOverview() {
1429    this->loadView(create_transition(curr_view(this),
1430                                     create_overview(fSamples.count(), fSamples.begin()),
1431                                     4));
1432}
1433
1434void SampleWindow::installDrawFilter(SkCanvas* canvas) {
1435    canvas->setDrawFilter(new FlagsDrawFilter(fLCDState, fAAState,
1436                                              fFilterState, fHintingState))->unref();
1437}
1438
1439void SampleWindow::postAnimatingEvent() {
1440    if (fAnimating) {
1441        (new SkEvent(ANIMATING_EVENTTYPE, this->getSinkID()))->postDelay(ANIMATING_DELAY);
1442    }
1443}
1444
1445bool SampleWindow::onEvent(const SkEvent& evt) {
1446    if (evt.isType(gUpdateWindowTitleEvtName)) {
1447        this->updateTitle();
1448        return true;
1449    }
1450    if (evt.isType(ANIMATING_EVENTTYPE)) {
1451        if (fAnimating) {
1452            this->nextSample();
1453            this->postAnimatingEvent();
1454        }
1455        return true;
1456    }
1457    if (evt.isType("replace-transition-view")) {
1458        this->loadView((SkView*)SkEventSink::FindSink(evt.getFast32()));
1459        return true;
1460    }
1461    if (evt.isType("set-curr-index")) {
1462        this->goToSample(evt.getFast32());
1463        return true;
1464    }
1465    if (isInvalEvent(evt)) {
1466        this->inval(NULL);
1467        return true;
1468    }
1469    int selected = -1;
1470    if (SkOSMenu::FindListIndex(evt, "Device Type", &selected)) {
1471        this->setDeviceType((DeviceType)selected);
1472        return true;
1473    }
1474    if (SkOSMenu::FindSwitchState(evt, "Pipe", &fUsePipe)) {
1475#ifdef PIPE_NET
1476        if (!fUsePipe)
1477            gServer.disconnectAll();
1478#endif
1479        (void)SampleView::SetUsePipe(curr_view(this), fUsePipe);
1480        this->updateTitle();
1481        this->inval(NULL);
1482        return true;
1483    }
1484    if (SkOSMenu::FindSwitchState(evt, "Slide Show", NULL)) {
1485        this->toggleSlideshow();
1486        return true;
1487    }
1488    if (SkOSMenu::FindTriState(evt, "AA", &fAAState) ||
1489        SkOSMenu::FindTriState(evt, "LCD", &fLCDState) ||
1490        SkOSMenu::FindTriState(evt, "Filter", &fFilterState) ||
1491        SkOSMenu::FindTriState(evt, "Hinting", &fHintingState) ||
1492        SkOSMenu::FindSwitchState(evt, "Clip", &fUseClip) ||
1493        SkOSMenu::FindSwitchState(evt, "Zoomer", &fShowZoomer) ||
1494        SkOSMenu::FindSwitchState(evt, "Magnify", &fMagnify) ||
1495        SkOSMenu::FindListIndex(evt, "Transition-Next", &fTransitionNext) ||
1496        SkOSMenu::FindListIndex(evt, "Transition-Prev", &fTransitionPrev)) {
1497        this->inval(NULL);
1498        this->updateTitle();
1499        return true;
1500    }
1501    if (SkOSMenu::FindSwitchState(evt, "Flip X", NULL)) {
1502        fFlipAxis ^= kFlipAxis_X;
1503        this->updateMatrix();
1504        return true;
1505    }
1506    if (SkOSMenu::FindSwitchState(evt, "Flip Y", NULL)) {
1507        fFlipAxis ^= kFlipAxis_Y;
1508        this->updateMatrix();
1509        return true;
1510    }
1511    if (SkOSMenu::FindAction(evt,"Save to PDF")) {
1512        this->saveToPdf();
1513        return true;
1514    }
1515#ifdef DEBUGGER
1516    if (SkOSMenu::FindSwitchState(evt, "Debugger", &fDebugger)) {
1517        if (fDebugger) {
1518            fUsePipe = true;
1519            (void)SampleView::SetUsePipe(curr_view(this), true);
1520        } else {
1521            this->loadView(fSamples[fCurrIndex]());
1522        }
1523        this->inval(NULL);
1524        return true;
1525    }
1526#endif
1527    return this->INHERITED::onEvent(evt);
1528}
1529
1530bool SampleWindow::onQuery(SkEvent* query) {
1531    if (query->isType("get-slide-count")) {
1532        query->setFast32(fSamples.count());
1533        return true;
1534    }
1535    if (query->isType("get-slide-title")) {
1536        SkView* view = (*fSamples[query->getFast32()])();
1537        SkEvent evt(gTitleEvtName);
1538        if (view->doQuery(&evt)) {
1539            query->setString("title", evt.findString(gTitleEvtName));
1540        }
1541        SkSafeUnref(view);
1542        return true;
1543    }
1544    if (query->isType("use-fast-text")) {
1545        SkEvent evt(gFastTextEvtName);
1546        return curr_view(this)->doQuery(&evt);
1547    }
1548    if (query->isType("ignore-window-bitmap")) {
1549        query->setFast32(this->getGrContext() != NULL);
1550        return true;
1551    }
1552    return this->INHERITED::onQuery(query);
1553}
1554
1555static void cleanup_for_filename(SkString* name) {
1556    char* str = name->writable_str();
1557    for (size_t i = 0; i < name->size(); i++) {
1558        switch (str[i]) {
1559            case ':': str[i] = '-'; break;
1560            case '/': str[i] = '-'; break;
1561            case ' ': str[i] = '_'; break;
1562            default: break;
1563        }
1564    }
1565}
1566
1567bool SampleWindow::onHandleChar(SkUnichar uni) {
1568    {
1569        SkView* view = curr_view(this);
1570        if (view) {
1571            SkEvent evt(gCharEvtName);
1572            evt.setFast32(uni);
1573            if (view->doQuery(&evt)) {
1574                return true;
1575            }
1576        }
1577    }
1578
1579    int dx = 0xFF;
1580    int dy = 0xFF;
1581
1582    switch (uni) {
1583        case '5': dx =  0; dy =  0; break;
1584        case '8': dx =  0; dy = -1; break;
1585        case '6': dx =  1; dy =  0; break;
1586        case '2': dx =  0; dy =  1; break;
1587        case '4': dx = -1; dy =  0; break;
1588        case '7': dx = -1; dy = -1; break;
1589        case '9': dx =  1; dy = -1; break;
1590        case '3': dx =  1; dy =  1; break;
1591        case '1': dx = -1; dy =  1; break;
1592
1593        default:
1594            break;
1595    }
1596
1597    if (0xFF != dx && 0xFF != dy) {
1598        if ((dx | dy) == 0) {
1599            fScrollTestX = fScrollTestY = 0;
1600        } else {
1601            fScrollTestX += dx;
1602            fScrollTestY += dy;
1603        }
1604        this->inval(NULL);
1605        return true;
1606    }
1607
1608    switch (uni) {
1609        case 'f':
1610            // only
1611            toggleFPS();
1612            break;
1613        case 'g':
1614            fRequestGrabImage = true;
1615            this->inval(NULL);
1616            break;
1617        case 'i':
1618            this->zoomIn();
1619            break;
1620        case 'o':
1621            this->zoomOut();
1622            break;
1623        case 'r':
1624            fRotate = !fRotate;
1625            this->inval(NULL);
1626            this->updateTitle();
1627            return true;
1628        case 'k':
1629            fPerspAnim = !fPerspAnim;
1630            this->inval(NULL);
1631            this->updateTitle();
1632            return true;
1633        case '\\':
1634            this->setDeviceType(kNullGPU_DeviceType);
1635            this->inval(NULL);
1636            this->updateTitle();
1637            return true;
1638        case 'p':
1639            {
1640                GrContext* grContext = this->getGrContext();
1641                if (grContext) {
1642                    size_t cacheBytes = grContext->getGpuTextureCacheBytes();
1643                    grContext->freeGpuResources();
1644                    SkDebugf("Purged %d bytes from the GPU resource cache.\n",
1645                             cacheBytes);
1646                }
1647            }
1648            return true;
1649        case 's':
1650            fScale = !fScale;
1651            this->inval(NULL);
1652            this->updateTitle();
1653            return true;
1654        default:
1655            break;
1656    }
1657
1658    if (fAppMenu.handleKeyEquivalent(uni)|| fSlideMenu.handleKeyEquivalent(uni)) {
1659        this->onUpdateMenu(&fAppMenu);
1660        this->onUpdateMenu(&fSlideMenu);
1661        return true;
1662    }
1663    return this->INHERITED::onHandleChar(uni);
1664}
1665
1666void SampleWindow::setDeviceType(DeviceType type) {
1667    if (type == fDeviceType)
1668        return;
1669
1670    fDevManager->tearDownBackend(this);
1671
1672    fDeviceType = type;
1673
1674    fDevManager->setUpBackend(this);
1675
1676    this->updateTitle();
1677    this->inval(NULL);
1678}
1679
1680void SampleWindow::toggleSlideshow() {
1681    fAnimating = !fAnimating;
1682    this->postAnimatingEvent();
1683    this->updateTitle();
1684}
1685
1686void SampleWindow::toggleRendering() {
1687    this->setDeviceType(cycle_devicetype(fDeviceType));
1688    this->updateTitle();
1689    this->inval(NULL);
1690}
1691
1692void SampleWindow::toggleFPS() {
1693    fMeasureFPS = !fMeasureFPS;
1694    this->updateTitle();
1695    this->inval(NULL);
1696}
1697
1698#include "SkDumpCanvas.h"
1699
1700bool SampleWindow::onHandleKey(SkKey key) {
1701    {
1702        SkView* view = curr_view(this);
1703        if (view) {
1704            SkEvent evt(gKeyEvtName);
1705            evt.setFast32(key);
1706            if (view->doQuery(&evt)) {
1707                return true;
1708            }
1709        }
1710    }
1711    switch (key) {
1712        case kRight_SkKey:
1713            if (this->nextSample()) {
1714                return true;
1715            }
1716            break;
1717        case kLeft_SkKey:
1718            toggleRendering();
1719            return true;
1720        case kUp_SkKey:
1721            if (USE_ARROWS_FOR_ZOOM) {
1722                this->changeZoomLevel(1.f);
1723            } else {
1724                fNClip = !fNClip;
1725                this->inval(NULL);
1726                this->updateTitle();
1727            }
1728            return true;
1729        case kDown_SkKey:
1730            if (USE_ARROWS_FOR_ZOOM) {
1731                this->changeZoomLevel(-1.f);
1732            } else {
1733                this->setConfig(cycle_configs(this->getBitmap().config()));
1734                this->updateTitle();
1735            }
1736            return true;
1737        case kOK_SkKey: {
1738            SkString title;
1739            if (curr_title(this, &title)) {
1740                writeTitleToPrefs(title.c_str());
1741            }
1742            return true;
1743        }
1744        case kBack_SkKey:
1745            this->showOverview();
1746            return true;
1747        default:
1748            break;
1749    }
1750    return this->INHERITED::onHandleKey(key);
1751}
1752
1753///////////////////////////////////////////////////////////////////////////////
1754
1755static const char gGestureClickType[] = "GestureClickType";
1756
1757bool SampleWindow::onDispatchClick(int x, int y, Click::State state,
1758        void* owner) {
1759    if (Click::kMoved_State == state) {
1760        updatePointer(x, y);
1761    }
1762    int w = SkScalarRound(this->width());
1763    int h = SkScalarRound(this->height());
1764
1765    // check for the resize-box
1766    if (w - x < 16 && h - y < 16) {
1767        return false;   // let the OS handle the click
1768    }
1769    else if (fMagnify) {
1770        //it's only necessary to update the drawing if there's a click
1771        this->inval(NULL);
1772        return false; //prevent dragging while magnify is enabled
1773    }
1774    else {
1775        return this->INHERITED::onDispatchClick(x, y, state, owner);
1776    }
1777}
1778
1779class GestureClick : public SkView::Click {
1780public:
1781    GestureClick(SkView* target) : SkView::Click(target) {
1782        this->setType(gGestureClickType);
1783    }
1784
1785    static bool IsGesture(Click* click) {
1786        return click->isType(gGestureClickType);
1787    }
1788};
1789
1790SkView::Click* SampleWindow::onFindClickHandler(SkScalar x, SkScalar y) {
1791    return new GestureClick(this);
1792}
1793
1794bool SampleWindow::onClick(Click* click) {
1795    if (GestureClick::IsGesture(click)) {
1796        float x = static_cast<float>(click->fICurr.fX);
1797        float y = static_cast<float>(click->fICurr.fY);
1798
1799        switch (click->fState) {
1800            case SkView::Click::kDown_State:
1801                fGesture.touchBegin(click->fOwner, x, y);
1802                break;
1803            case SkView::Click::kMoved_State:
1804                fGesture.touchMoved(click->fOwner, x, y);
1805                this->updateMatrix();
1806                break;
1807            case SkView::Click::kUp_State:
1808                fGesture.touchEnd(click->fOwner);
1809                this->updateMatrix();
1810                break;
1811        }
1812        return true;
1813    }
1814    return false;
1815}
1816
1817///////////////////////////////////////////////////////////////////////////////
1818
1819void SampleWindow::loadView(SkView* view) {
1820    SkView::F2BIter iter(this);
1821    SkView* prev = iter.next();
1822    if (prev) {
1823        prev->detachFromParent();
1824    }
1825
1826    view->setVisibleP(true);
1827    view->setClipToBounds(false);
1828    this->attachChildToFront(view)->unref();
1829    view->setSize(this->width(), this->height());
1830
1831    //repopulate the slide menu when a view is loaded
1832    fSlideMenu.reset();
1833#ifdef DEBUGGER
1834    if (!is_debugger(view) && !is_overview(view) && !is_transition(view) && fDebugger) {
1835        //Force Pipe to be on if using debugger
1836        fUsePipe = true;
1837    }
1838#endif
1839    (void)SampleView::SetUsePipe(view, fUsePipe);
1840    if (SampleView::IsSampleView(view))
1841        ((SampleView*)view)->requestMenu(&fSlideMenu);
1842    this->onUpdateMenu(&fSlideMenu);
1843    this->updateTitle();
1844}
1845
1846static const char* gConfigNames[] = {
1847    "unknown config",
1848    "A1",
1849    "A8",
1850    "Index8",
1851    "565",
1852    "4444",
1853    "8888"
1854};
1855
1856static const char* configToString(SkBitmap::Config c) {
1857    return gConfigNames[c];
1858}
1859
1860static const char* gDeviceTypePrefix[] = {
1861    "raster: ",
1862    "picture: ",
1863    "opengl: ",
1864#if SK_ANGLE
1865    "angle: ",
1866#endif
1867    "null-gl: "
1868};
1869
1870static const char* trystate_str(SkOSMenu::TriState state,
1871                                const char trueStr[], const char falseStr[]) {
1872    if (SkOSMenu::kOnState == state) {
1873        return trueStr;
1874    } else if (SkOSMenu::kOffState == state) {
1875        return falseStr;
1876    }
1877    return NULL;
1878}
1879
1880void SampleWindow::updateTitle() {
1881    SkView* view = curr_view(this);
1882
1883    SkString title;
1884    if (!curr_title(this, &title)) {
1885        title.set("<unknown>");
1886    }
1887
1888    title.prepend(gDeviceTypePrefix[fDeviceType]);
1889
1890    title.prepend(" ");
1891    title.prepend(configToString(this->getBitmap().config()));
1892
1893    if (fAnimating) {
1894        title.prepend("<A> ");
1895    }
1896    if (fScale) {
1897        title.prepend("<S> ");
1898    }
1899    if (fRotate) {
1900        title.prepend("<R> ");
1901    }
1902    if (fNClip) {
1903        title.prepend("<C> ");
1904    }
1905    if (fPerspAnim) {
1906        title.prepend("<K> ");
1907    }
1908
1909    title.prepend(trystate_str(fLCDState, "LCD ", "lcd "));
1910    title.prepend(trystate_str(fAAState, "AA ", "aa "));
1911    title.prepend(trystate_str(fFilterState, "H ", "h "));
1912    title.prepend(fFlipAxis & kFlipAxis_X ? "X " : NULL);
1913    title.prepend(fFlipAxis & kFlipAxis_Y ? "Y " : NULL);
1914
1915    if (fZoomLevel) {
1916        title.prependf("{%.2f} ", SkScalarToFloat(fZoomLevel));
1917    }
1918
1919    if (fMeasureFPS) {
1920        title.appendf(" %6.1f ms", fMeasureFPS_Time / (float)FPS_REPEAT_MULTIPLIER);
1921    }
1922    if (fUsePipe && SampleView::IsSampleView(view)) {
1923        title.prepend("<P> ");
1924    }
1925    if (SampleView::IsSampleView(view)) {
1926        title.prepend("! ");
1927    }
1928
1929    this->setTitle(title.c_str());
1930}
1931
1932void SampleWindow::onSizeChange() {
1933    this->INHERITED::onSizeChange();
1934
1935    SkView::F2BIter iter(this);
1936    SkView* view = iter.next();
1937    view->setSize(this->width(), this->height());
1938
1939    // rebuild our clippath
1940    {
1941        const SkScalar W = this->width();
1942        const SkScalar H = this->height();
1943
1944        fClipPath.reset();
1945#if 0
1946        for (SkScalar y = SK_Scalar1; y < H; y += SkIntToScalar(32)) {
1947            SkRect r;
1948            r.set(SK_Scalar1, y, SkIntToScalar(30), y + SkIntToScalar(30));
1949            for (; r.fLeft < W; r.offset(SkIntToScalar(32), 0))
1950                fClipPath.addRect(r);
1951        }
1952#else
1953        SkRect r;
1954        r.set(0, 0, W, H);
1955        fClipPath.addRect(r, SkPath::kCCW_Direction);
1956        r.set(W/4, H/4, W*3/4, H*3/4);
1957        fClipPath.addRect(r, SkPath::kCW_Direction);
1958#endif
1959    }
1960
1961    fZoomCenterX = SkScalarHalf(this->width());
1962    fZoomCenterY = SkScalarHalf(this->height());
1963
1964#ifdef SK_BUILD_FOR_ANDROID
1965    // FIXME: The first draw after a size change does not work on Android, so
1966    // we post an invalidate.
1967    this->postInvalDelay();
1968#endif
1969    this->updateTitle();    // to refresh our config
1970    fDevManager->windowSizeChanged(this);
1971}
1972
1973///////////////////////////////////////////////////////////////////////////////
1974
1975static const char is_sample_view_tag[] = "sample-is-sample-view";
1976static const char repeat_count_tag[] = "sample-set-repeat-count";
1977static const char set_use_pipe_tag[] = "sample-set-use-pipe";
1978
1979bool SampleView::IsSampleView(SkView* view) {
1980    SkEvent evt(is_sample_view_tag);
1981    return view->doQuery(&evt);
1982}
1983
1984bool SampleView::SetRepeatDraw(SkView* view, int count) {
1985    SkEvent evt(repeat_count_tag);
1986    evt.setFast32(count);
1987    return view->doEvent(evt);
1988}
1989
1990bool SampleView::SetUsePipe(SkView* view, bool pred) {
1991    SkEvent evt(set_use_pipe_tag);
1992    evt.setFast32(pred);
1993    return view->doEvent(evt);
1994}
1995
1996bool SampleView::onEvent(const SkEvent& evt) {
1997    if (evt.isType(repeat_count_tag)) {
1998        fRepeatCount = evt.getFast32();
1999        return true;
2000    }
2001    if (evt.isType(set_use_pipe_tag)) {
2002        fUsePipe = !!evt.getFast32();
2003        return true;
2004    }
2005    return this->INHERITED::onEvent(evt);
2006}
2007
2008bool SampleView::onQuery(SkEvent* evt) {
2009    if (evt->isType(is_sample_view_tag)) {
2010        return true;
2011    }
2012    return this->INHERITED::onQuery(evt);
2013}
2014
2015#ifdef TEST_GPIPE
2016    #include "SkGPipe.h"
2017
2018class SimplePC : public SkGPipeController {
2019public:
2020    SimplePC(SkCanvas* target);
2021    ~SimplePC();
2022
2023    /**
2024     * User this method to halt/restart pipe
2025     */
2026    void setWriteToPipe(bool writeToPipe) { fWriteToPipe = writeToPipe; }
2027    virtual void* requestBlock(size_t minRequest, size_t* actual);
2028    virtual void notifyWritten(size_t bytes);
2029
2030private:
2031    SkGPipeReader   fReader;
2032    void*           fBlock;
2033    size_t          fBlockSize;
2034    size_t          fBytesWritten;
2035    int             fAtomsWritten;
2036    SkGPipeReader::Status   fStatus;
2037    bool            fWriteToPipe;
2038
2039    size_t        fTotalWritten;
2040};
2041
2042SimplePC::SimplePC(SkCanvas* target) : fReader(target) {
2043    fBlock = NULL;
2044    fBlockSize = fBytesWritten = 0;
2045    fStatus = SkGPipeReader::kDone_Status;
2046    fTotalWritten = 0;
2047    fAtomsWritten = 0;
2048    fWriteToPipe = true;
2049}
2050
2051SimplePC::~SimplePC() {
2052//    SkASSERT(SkGPipeReader::kDone_Status == fStatus);
2053    if (fTotalWritten) {
2054        if (fWriteToPipe) {
2055            SkDebugf("--- %d bytes %d atoms, status %d\n", fTotalWritten,
2056                     fAtomsWritten, fStatus);
2057#ifdef  PIPE_FILE
2058            //File is open in append mode
2059            FILE* f = fopen(FILE_PATH, "ab");
2060            SkASSERT(f != NULL);
2061            fwrite((const char*)fBlock + fBytesWritten, 1, bytes, f);
2062            fclose(f);
2063#endif
2064#ifdef PIPE_NET
2065            if (fAtomsWritten > 1 && fTotalWritten > 4) { //ignore done
2066                gServer.acceptConnections();
2067                gServer.writePacket(fBlock, fTotalWritten);
2068            }
2069#endif
2070#ifdef  DEBUGGER
2071            gTempDataStore.reset();
2072            gTempDataStore.append(fTotalWritten, (const char*)fBlock);
2073#endif
2074        }
2075    }
2076    sk_free(fBlock);
2077}
2078
2079void* SimplePC::requestBlock(size_t minRequest, size_t* actual) {
2080    sk_free(fBlock);
2081
2082    fBlockSize = minRequest * 4;
2083    fBlock = sk_malloc_throw(fBlockSize);
2084    fBytesWritten = 0;
2085    *actual = fBlockSize;
2086    return fBlock;
2087}
2088
2089void SimplePC::notifyWritten(size_t bytes) {
2090    SkASSERT(fBytesWritten + bytes <= fBlockSize);
2091    fStatus = fReader.playback((const char*)fBlock + fBytesWritten, bytes);
2092    SkASSERT(SkGPipeReader::kError_Status != fStatus);
2093    fBytesWritten += bytes;
2094    fTotalWritten += bytes;
2095
2096    fAtomsWritten += 1;
2097}
2098
2099#endif
2100
2101void SampleView::draw(SkCanvas* canvas) {
2102#ifdef TEST_GPIPE
2103    if (fUsePipe) {
2104        SkGPipeWriter writer;
2105        SimplePC controller(canvas);
2106        uint32_t flags = SkGPipeWriter::kCrossProcess_Flag;
2107        canvas = writer.startRecording(&controller, flags);
2108        //Must draw before controller goes out of scope and sends data
2109        this->INHERITED::draw(canvas);
2110        //explicitly end recording to ensure writer is flushed before the memory
2111        //is freed in the deconstructor of the controller
2112        writer.endRecording();
2113        controller.setWriteToPipe(fUsePipe);
2114    }
2115    else
2116        this->INHERITED::draw(canvas);
2117#else
2118    this->INHERITED::draw(canvas);
2119#endif
2120}
2121void SampleView::onDraw(SkCanvas* canvas) {
2122    this->onDrawBackground(canvas);
2123
2124    for (int i = 0; i < fRepeatCount; i++) {
2125        SkAutoCanvasRestore acr(canvas, true);
2126        this->onDrawContent(canvas);
2127    }
2128}
2129
2130void SampleView::onDrawBackground(SkCanvas* canvas) {
2131    canvas->drawColor(fBGColor);
2132}
2133
2134///////////////////////////////////////////////////////////////////////////////
2135
2136template <typename T> void SkTBSort(T array[], int count) {
2137    for (int i = 1; i < count - 1; i++) {
2138        bool didSwap = false;
2139        for (int j = count - 1; j > i; --j) {
2140            if (array[j] < array[j-1]) {
2141                T tmp(array[j-1]);
2142                array[j-1] = array[j];
2143                array[j] = tmp;
2144                didSwap = true;
2145            }
2146        }
2147        if (!didSwap) {
2148            break;
2149        }
2150    }
2151
2152    for (int k = 0; k < count - 1; k++) {
2153        SkASSERT(!(array[k+1] < array[k]));
2154    }
2155}
2156
2157#include "SkRandom.h"
2158
2159static void rand_rect(SkIRect* rect, SkRandom& rand) {
2160    int bits = 8;
2161    int shift = 32 - bits;
2162    rect->set(rand.nextU() >> shift, rand.nextU() >> shift,
2163              rand.nextU() >> shift, rand.nextU() >> shift);
2164    rect->sort();
2165}
2166
2167static void dumpRect(const SkIRect& r) {
2168    SkDebugf(" { %d, %d, %d, %d },\n",
2169             r.fLeft, r.fTop,
2170             r.fRight, r.fBottom);
2171}
2172
2173static void test_rects(const SkIRect rect[], int count) {
2174    SkRegion rgn0, rgn1;
2175
2176    for (int i = 0; i < count; i++) {
2177        rgn0.op(rect[i], SkRegion::kUnion_Op);
2178     //   dumpRect(rect[i]);
2179    }
2180    rgn1.setRects(rect, count);
2181
2182    if (rgn0 != rgn1) {
2183        SkDebugf("\n");
2184        for (int i = 0; i < count; i++) {
2185            dumpRect(rect[i]);
2186        }
2187        SkDebugf("\n");
2188    }
2189}
2190
2191static void test() {
2192    size_t i;
2193
2194    const SkIRect r0[] = {
2195        { 0, 0, 1, 1 },
2196        { 2, 2, 3, 3 },
2197    };
2198    const SkIRect r1[] = {
2199        { 0, 0, 1, 3 },
2200        { 1, 1, 2, 2 },
2201        { 2, 0, 3, 3 },
2202    };
2203    const SkIRect r2[] = {
2204        { 0, 0, 1, 2 },
2205        { 2, 1, 3, 3 },
2206        { 4, 0, 5, 1 },
2207        { 6, 0, 7, 4 },
2208    };
2209
2210    static const struct {
2211        const SkIRect* fRects;
2212        int            fCount;
2213    } gRecs[] = {
2214        { r0, SK_ARRAY_COUNT(r0) },
2215        { r1, SK_ARRAY_COUNT(r1) },
2216        { r2, SK_ARRAY_COUNT(r2) },
2217    };
2218
2219    for (i = 0; i < SK_ARRAY_COUNT(gRecs); i++) {
2220        test_rects(gRecs[i].fRects, gRecs[i].fCount);
2221    }
2222
2223    SkRandom rand;
2224    for (i = 0; i < 10000; i++) {
2225        SkRegion rgn0, rgn1;
2226
2227        const int N = 8;
2228        SkIRect rect[N];
2229        for (int j = 0; j < N; j++) {
2230            rand_rect(&rect[j], rand);
2231        }
2232        test_rects(rect, N);
2233    }
2234}
2235
2236SkOSWindow* create_sk_window(void* hwnd, int argc, char** argv) {
2237//    test();
2238    return new SampleWindow(hwnd, argc, argv, NULL);
2239}
2240
2241void get_preferred_size(int* x, int* y, int* width, int* height) {
2242    *x = 10;
2243    *y = 50;
2244    *width = 640;
2245    *height = 480;
2246}
2247
2248void application_init() {
2249//    setenv("ANDROID_ROOT", "../../../data", 0);
2250#ifdef SK_BUILD_FOR_MAC
2251    setenv("ANDROID_ROOT", "/android/device/data", 0);
2252#endif
2253    SkGraphics::Init();
2254    SkEvent::Init();
2255}
2256
2257void application_term() {
2258    SkEvent::Term();
2259    SkGraphics::Term();
2260}
2261