SampleApp.cpp revision 5987f58036574ccf23049b5fe71f29a441d0641d 
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 "SkGraphics.h"
13#include "SkImageEncoder.h"
14#include "SkPaint.h"
15#include "SkPicture.h"
16#include "SkStream.h"
17#include "SkTime.h"
18#include "SkWindow.h"
19
20#include "SampleCode.h"
21#include "SkTypeface.h"
22
23#if SK_SUPPORT_GPU
24#include "gl/GrGLInterface.h"
25#include "gl/GrGLUtil.h"
26#include "GrRenderTarget.h"
27#include "GrContext.h"
28#include "SkGpuDevice.h"
29#else
30class GrContext;
31#endif
32
33#include "SkOSFile.h"
34#include "SkPDFDevice.h"
35#include "SkPDFDocument.h"
36#include "SkStream.h"
37
38#include "SkGPipe.h"
39#include "SamplePipeControllers.h"
40#include "OverView.h"
41#include "TransitionView.h"
42
43SK_DEFINE_INST_COUNT(SampleWindow::DeviceManager)
44
45extern SampleView* CreateSamplePictFileView(const char filename[]);
46
47class PictFileFactory : public SkViewFactory {
48    SkString fFilename;
49public:
50    PictFileFactory(const SkString& filename) : fFilename(filename) {}
51    virtual SkView* operator() () const SK_OVERRIDE {
52        return CreateSamplePictFileView(fFilename.c_str());
53    }
54};
55
56#define PIPE_FILEx
57#ifdef  PIPE_FILE
58#define FILE_PATH "/path/to/drawing.data"
59#endif
60
61#define PIPE_NETx
62#ifdef  PIPE_NET
63#include "SkSockets.h"
64SkTCPServer gServer;
65#endif
66
67#define DEBUGGERx
68#ifdef  DEBUGGER
69extern SkView* create_debugger(const char* data, size_t size);
70extern bool is_debugger(SkView* view);
71SkTDArray<char> gTempDataStore;
72#endif
73
74
75#define USE_ARROWS_FOR_ZOOM true
76
77#if SK_ANGLE
78//#define DEFAULT_TO_ANGLE 1
79#else
80//#define DEFAULT_TO_GPU 1
81#endif
82
83#define ANIMATING_EVENTTYPE "nextSample"
84#define ANIMATING_DELAY     750
85
86#ifdef SK_DEBUG
87    #define FPS_REPEAT_MULTIPLIER   1
88#else
89    #define FPS_REPEAT_MULTIPLIER   10
90#endif
91#define FPS_REPEAT_COUNT    (10 * FPS_REPEAT_MULTIPLIER)
92
93static SampleWindow* gSampleWindow;
94
95static void postEventToSink(SkEvent* evt, SkEventSink* sink) {
96    evt->setTargetID(sink->getSinkID())->post();
97}
98
99///////////////////////////////////////////////////////////////////////////////
100
101static const char* skip_until(const char* str, const char* skip) {
102    if (!str) {
103        return NULL;
104    }
105    return strstr(str, skip);
106}
107
108static const char* skip_past(const char* str, const char* skip) {
109    const char* found = skip_until(str, skip);
110    if (!found) {
111        return NULL;
112    }
113    return found + strlen(skip);
114}
115
116static const char* gPrefFileName = "sampleapp_prefs.txt";
117
118static bool readTitleFromPrefs(SkString* title) {
119    SkFILEStream stream(gPrefFileName);
120    if (!stream.isValid()) {
121        return false;
122    }
123
124    int len = stream.getLength();
125    SkString data(len);
126    stream.read(data.writable_str(), len);
127    const char* s = data.c_str();
128
129    s = skip_past(s, "curr-slide-title");
130    s = skip_past(s, "=");
131    s = skip_past(s, "\"");
132    const char* stop = skip_until(s, "\"");
133    if (stop > s) {
134        title->set(s, stop - s);
135        return true;
136    }
137    return false;
138}
139
140static void writeTitleToPrefs(const char* title) {
141    SkFILEWStream stream(gPrefFileName);
142    SkString data;
143    data.printf("curr-slide-title = \"%s\"\n", title);
144    stream.write(data.c_str(), data.size());
145}
146
147///////////////////////////////////////////////////////////////////////////////
148
149class SampleWindow::DefaultDeviceManager : public SampleWindow::DeviceManager {
150public:
151
152    DefaultDeviceManager() {
153#if SK_SUPPORT_GPU
154        fCurContext = NULL;
155        fCurIntf = NULL;
156        fCurRenderTarget = NULL;
157        fMSAASampleCount = 0;
158#endif
159        fBackend = kNone_BackEndType;
160    }
161
162    virtual ~DefaultDeviceManager() {
163#if SK_SUPPORT_GPU
164        SkSafeUnref(fCurContext);
165        SkSafeUnref(fCurIntf);
166        SkSafeUnref(fCurRenderTarget);
167#endif
168    }
169
170    virtual void setUpBackend(SampleWindow* win, int msaaSampleCount) {
171        SkASSERT(kNone_BackEndType == fBackend);
172
173        fBackend = kNone_BackEndType;
174
175#if SK_SUPPORT_GPU
176        switch (win->getDeviceType()) {
177            case kRaster_DeviceType:
178                // fallthrough
179            case kPicture_DeviceType:
180                // fallthrough
181            case kGPU_DeviceType:
182                // fallthrough
183            case kNullGPU_DeviceType:
184                // all these guys use the native backend
185                fBackend = kNativeGL_BackEndType;
186                break;
187#if SK_ANGLE
188            case kANGLE_DeviceType:
189                // ANGLE is really the only odd man out
190                fBackend = kANGLE_BackEndType;
191                break;
192#endif // SK_ANGLE
193            default:
194                SkASSERT(false);
195                break;
196        }
197
198        bool result = win->attach(fBackend, msaaSampleCount);
199        if (!result) {
200            SkDebugf("Failed to initialize GL");
201            return;
202        }
203        fMSAASampleCount = msaaSampleCount;
204
205        SkASSERT(NULL == fCurIntf);
206        switch (win->getDeviceType()) {
207            case kRaster_DeviceType:
208                // fallthrough
209            case kPicture_DeviceType:
210                // fallthrough
211            case kGPU_DeviceType:
212                // all these guys use the native interface
213                fCurIntf = GrGLCreateNativeInterface();
214                break;
215#if SK_ANGLE
216            case kANGLE_DeviceType:
217                fCurIntf = GrGLCreateANGLEInterface();
218                break;
219#endif // SK_ANGLE
220            case kNullGPU_DeviceType:
221                fCurIntf = GrGLCreateNullInterface();
222                break;
223            default:
224                SkASSERT(false);
225                break;
226        }
227
228        SkASSERT(NULL == fCurContext);
229        fCurContext = GrContext::Create(kOpenGL_Shaders_GrEngine,
230                                        (GrPlatform3DContext) fCurIntf);
231
232        if (NULL == fCurContext || NULL == fCurIntf) {
233            // We need some context and interface to see results
234            SkSafeUnref(fCurContext);
235            SkSafeUnref(fCurIntf);
236            SkDebugf("Failed to setup 3D");
237
238            win->detach();
239        }
240#endif // SK_SUPPORT_GPU
241        // call windowSizeChanged to create the render target
242        this->windowSizeChanged(win);
243    }
244
245    virtual void tearDownBackend(SampleWindow *win) {
246#if SK_SUPPORT_GPU
247        SkSafeUnref(fCurContext);
248        fCurContext = NULL;
249
250        SkSafeUnref(fCurIntf);
251        fCurIntf = NULL;
252
253        SkSafeUnref(fCurRenderTarget);
254        fCurRenderTarget = NULL;
255#endif
256        win->detach();
257        fBackend = kNone_BackEndType;
258    }
259
260    virtual SkCanvas* createCanvas(SampleWindow::DeviceType dType,
261                                   SampleWindow* win) {
262        switch (dType) {
263            case kRaster_DeviceType:
264                // fallthrough
265            case kPicture_DeviceType:
266                // fallthrough
267#if SK_ANGLE
268            case kANGLE_DeviceType:
269#endif
270                break;
271#if SK_SUPPORT_GPU
272            case kGPU_DeviceType:
273            case kNullGPU_DeviceType:
274                if (fCurContext) {
275                    SkAutoTUnref<SkDevice> device(new SkGpuDevice(fCurContext,
276                                                                  fCurRenderTarget));
277                    return new SkCanvas(device);
278                } else {
279                    return NULL;
280                }
281                break;
282#endif
283            default:
284                SkASSERT(false);
285                return NULL;
286        }
287        return NULL;
288    }
289
290    virtual void publishCanvas(SampleWindow::DeviceType dType,
291                               SkCanvas* canvas,
292                               SampleWindow* win) {
293#if SK_SUPPORT_GPU
294        if (fCurContext) {
295            // in case we have queued drawing calls
296            fCurContext->flush();
297
298            if (kGPU_DeviceType != dType && kNullGPU_DeviceType != dType) {
299                // need to send the raster bits to the (gpu) window
300                fCurContext->setRenderTarget(fCurRenderTarget);
301                const SkBitmap& bm = win->getBitmap();
302                fCurRenderTarget->writePixels(0, 0, bm.width(), bm.height(),
303                                             kSkia8888_PM_GrPixelConfig,
304                                             bm.getPixels(),
305                                             bm.rowBytes());
306            }
307        }
308#endif
309
310        win->present();
311    }
312
313    virtual void windowSizeChanged(SampleWindow* win) {
314#if SK_SUPPORT_GPU
315        if (fCurContext) {
316            win->attach(fBackend, fMSAASampleCount);
317
318            GrPlatformRenderTargetDesc desc;
319            desc.fWidth = SkScalarRound(win->width());
320            desc.fHeight = SkScalarRound(win->height());
321            desc.fConfig = kSkia8888_PM_GrPixelConfig;
322            GR_GL_GetIntegerv(fCurIntf, GR_GL_SAMPLES, &desc.fSampleCnt);
323            GR_GL_GetIntegerv(fCurIntf, GR_GL_STENCIL_BITS, &desc.fStencilBits);
324            GrGLint buffer;
325            GR_GL_GetIntegerv(fCurIntf, GR_GL_FRAMEBUFFER_BINDING, &buffer);
326            desc.fRenderTargetHandle = buffer;
327
328            SkSafeUnref(fCurRenderTarget);
329            fCurRenderTarget = fCurContext->createPlatformRenderTarget(desc);
330        }
331#endif
332    }
333
334    virtual GrContext* getGrContext() {
335#if SK_SUPPORT_GPU
336        return fCurContext;
337#else
338        return NULL;
339#endif
340    }
341
342    virtual GrRenderTarget* getGrRenderTarget() SK_OVERRIDE {
343#if SK_SUPPORT_GPU
344        return fCurRenderTarget;
345#else
346        return NULL;
347#endif
348    }
349
350private:
351
352#if SK_SUPPORT_GPU
353    GrContext*              fCurContext;
354    const GrGLInterface*    fCurIntf;
355    GrRenderTarget*         fCurRenderTarget;
356    int fMSAASampleCount;
357#endif
358
359    SkOSWindow::SkBackEndTypes fBackend;
360
361    typedef SampleWindow::DeviceManager INHERITED;
362};
363
364///////////////
365static const char view_inval_msg[] = "view-inval-msg";
366
367void SampleWindow::postInvalDelay() {
368    (new SkEvent(view_inval_msg, this->getSinkID()))->postDelay(1);
369}
370
371static bool isInvalEvent(const SkEvent& evt) {
372    return evt.isType(view_inval_msg);
373}
374//////////////////
375
376SkFuncViewFactory::SkFuncViewFactory(SkViewCreateFunc func)
377    : fCreateFunc(func) {
378}
379
380SkView* SkFuncViewFactory::operator() () const {
381    return (*fCreateFunc)();
382}
383
384#include "GMSampleView.h"
385
386SkGMSampleViewFactory::SkGMSampleViewFactory(GMFactoryFunc func)
387    : fFunc(func) {
388}
389
390SkView* SkGMSampleViewFactory::operator() () const {
391    return new GMSampleView(fFunc(NULL));
392}
393
394SkViewRegister* SkViewRegister::gHead;
395SkViewRegister::SkViewRegister(SkViewFactory* fact) : fFact(fact) {
396    fFact->ref();
397    fChain = gHead;
398    gHead = this;
399}
400
401SkViewRegister::SkViewRegister(SkViewCreateFunc func) {
402    fFact = new SkFuncViewFactory(func);
403    fChain = gHead;
404    gHead = this;
405}
406
407SkViewRegister::SkViewRegister(GMFactoryFunc func) {
408    fFact = new SkGMSampleViewFactory(func);
409    fChain = gHead;
410    gHead = this;
411}
412
413class AutoUnrefArray {
414public:
415    AutoUnrefArray() {}
416    ~AutoUnrefArray() {
417        int count = fObjs.count();
418        for (int i = 0; i < count; ++i) {
419            fObjs[i]->unref();
420        }
421    }
422    SkRefCnt*& push_back() { return *fObjs.append(); }
423
424private:
425    SkTDArray<SkRefCnt*> fObjs;
426};
427
428// registers GMs as Samples
429// This can't be performed during static initialization because it could be
430// run before GMRegistry has been fully built.
431static void SkGMRegistyToSampleRegistry() {
432    static bool gOnce;
433    static AutoUnrefArray fRegisters;
434
435    if (!gOnce) {
436        const skiagm::GMRegistry* gmreg = skiagm::GMRegistry::Head();
437        while (gmreg) {
438            fRegisters.push_back() = new SkViewRegister(gmreg->factory());
439            gmreg = gmreg->next();
440        }
441        gOnce = true;
442    }
443}
444
445#if 0
446#include <CoreFoundation/CoreFoundation.h>
447#include <CoreFoundation/CFURLAccess.h>
448
449static void testpdf() {
450    CFStringRef path = CFStringCreateWithCString(NULL, "/test.pdf",
451                                                 kCFStringEncodingUTF8);
452    CFURLRef url = CFURLCreateWithFileSystemPath(NULL, path,
453                                              kCFURLPOSIXPathStyle,
454                                              false);
455    CFRelease(path);
456    CGRect box = CGRectMake(0, 0, 8*72, 10*72);
457    CGContextRef cg = CGPDFContextCreateWithURL(url, &box, NULL);
458    CFRelease(url);
459
460    CGContextBeginPage(cg, &box);
461    CGRect r = CGRectMake(10, 10, 40 + 0.5, 50 + 0.5);
462    CGContextFillEllipseInRect(cg, r);
463    CGContextEndPage(cg);
464    CGContextRelease(cg);
465
466    if (false) {
467        SkBitmap bm;
468        bm.setConfig(SkBitmap::kA8_Config, 64, 64);
469        bm.allocPixels();
470        bm.eraseColor(0);
471
472        SkCanvas canvas(bm);
473
474    }
475}
476#endif
477
478//////////////////////////////////////////////////////////////////////////////
479
480enum FlipAxisEnum {
481    kFlipAxis_X = (1 << 0),
482    kFlipAxis_Y = (1 << 1)
483};
484
485#include "SkDrawFilter.h"
486
487class FlagsDrawFilter : public SkDrawFilter {
488public:
489    FlagsDrawFilter(SkOSMenu::TriState lcd, SkOSMenu::TriState aa, SkOSMenu::TriState filter,
490                    SkOSMenu::TriState hinting) :
491        fLCDState(lcd), fAAState(aa), fFilterState(filter), fHintingState(hinting) {}
492
493    virtual void filter(SkPaint* paint, Type t) {
494        if (kText_Type == t && SkOSMenu::kMixedState != fLCDState) {
495            paint->setLCDRenderText(SkOSMenu::kOnState == fLCDState);
496        }
497        if (SkOSMenu::kMixedState != fAAState) {
498            paint->setAntiAlias(SkOSMenu::kOnState == fAAState);
499        }
500        if (SkOSMenu::kMixedState != fFilterState) {
501            paint->setFilterBitmap(SkOSMenu::kOnState == fFilterState);
502        }
503        if (SkOSMenu::kMixedState != fHintingState) {
504            paint->setHinting(SkOSMenu::kOnState == fHintingState ?
505                              SkPaint::kNormal_Hinting :
506                              SkPaint::kSlight_Hinting);
507        }
508    }
509
510private:
511    SkOSMenu::TriState  fLCDState;
512    SkOSMenu::TriState  fAAState;
513    SkOSMenu::TriState  fFilterState;
514    SkOSMenu::TriState  fHintingState;
515};
516
517//////////////////////////////////////////////////////////////////////////////
518
519#define MAX_ZOOM_LEVEL  8
520#define MIN_ZOOM_LEVEL  -8
521
522static const char gCharEvtName[] = "SampleCode_Char_Event";
523static const char gKeyEvtName[] = "SampleCode_Key_Event";
524static const char gTitleEvtName[] = "SampleCode_Title_Event";
525static const char gPrefSizeEvtName[] = "SampleCode_PrefSize_Event";
526static const char gFastTextEvtName[] = "SampleCode_FastText_Event";
527static const char gUpdateWindowTitleEvtName[] = "SampleCode_UpdateWindowTitle";
528
529bool SampleCode::CharQ(const SkEvent& evt, SkUnichar* outUni) {
530    if (evt.isType(gCharEvtName, sizeof(gCharEvtName) - 1)) {
531        if (outUni) {
532            *outUni = evt.getFast32();
533        }
534        return true;
535    }
536    return false;
537}
538
539bool SampleCode::KeyQ(const SkEvent& evt, SkKey* outKey) {
540    if (evt.isType(gKeyEvtName, sizeof(gKeyEvtName) - 1)) {
541        if (outKey) {
542            *outKey = (SkKey)evt.getFast32();
543        }
544        return true;
545    }
546    return false;
547}
548
549bool SampleCode::TitleQ(const SkEvent& evt) {
550    return evt.isType(gTitleEvtName, sizeof(gTitleEvtName) - 1);
551}
552
553void SampleCode::TitleR(SkEvent* evt, const char title[]) {
554    SkASSERT(evt && TitleQ(*evt));
555    evt->setString(gTitleEvtName, title);
556}
557
558bool SampleCode::RequestTitle(SkView* view, SkString* title) {
559    SkEvent evt(gTitleEvtName);
560    if (view->doQuery(&evt)) {
561        title->set(evt.findString(gTitleEvtName));
562        return true;
563    }
564    return false;
565}
566
567bool SampleCode::PrefSizeQ(const SkEvent& evt) {
568    return evt.isType(gPrefSizeEvtName, sizeof(gPrefSizeEvtName) - 1);
569}
570
571void SampleCode::PrefSizeR(SkEvent* evt, SkScalar width, SkScalar height) {
572    SkASSERT(evt && PrefSizeQ(*evt));
573    SkScalar size[2];
574    size[0] = width;
575    size[1] = height;
576    evt->setScalars(gPrefSizeEvtName, 2, size);
577}
578
579bool SampleCode::FastTextQ(const SkEvent& evt) {
580    return evt.isType(gFastTextEvtName, sizeof(gFastTextEvtName) - 1);
581}
582
583///////////////////////////////////////////////////////////////////////////////
584
585static SkMSec gAnimTime;
586static SkMSec gAnimTimePrev;
587
588SkMSec SampleCode::GetAnimTime() { return gAnimTime; }
589SkMSec SampleCode::GetAnimTimeDelta() { return gAnimTime - gAnimTimePrev; }
590SkScalar SampleCode::GetAnimSecondsDelta() {
591    return SkDoubleToScalar(GetAnimTimeDelta() / 1000.0);
592}
593
594SkScalar SampleCode::GetAnimScalar(SkScalar speed, SkScalar period) {
595    // since gAnimTime can be up to 32 bits, we can't convert it to a float
596    // or we'll lose the low bits. Hence we use doubles for the intermediate
597    // calculations
598    double seconds = (double)gAnimTime / 1000.0;
599    double value = SkScalarToDouble(speed) * seconds;
600    if (period) {
601        value = ::fmod(value, SkScalarToDouble(period));
602    }
603    return SkDoubleToScalar(value);
604}
605
606SkScalar SampleCode::GetAnimSinScalar(SkScalar amplitude,
607                                      SkScalar periodInSec,
608                                      SkScalar phaseInSec) {
609    if (!periodInSec) {
610        return 0;
611    }
612    double t = (double)gAnimTime / 1000.0 + phaseInSec;
613    t *= SkScalarToFloat(2 * SK_ScalarPI) / periodInSec;
614    amplitude = SK_ScalarHalf * amplitude;
615    return SkScalarMul(amplitude, SkDoubleToScalar(sin(t))) + amplitude;
616}
617
618GrContext* SampleCode::GetGr() {
619    return gSampleWindow ? gSampleWindow->getGrContext() : NULL;
620}
621
622// some GMs rely on having a skiagm::GetGr function defined
623namespace skiagm {
624    // FIXME: this should be moved into a header
625    GrContext* GetGr();
626    GrContext* GetGr() { return SampleCode::GetGr(); }
627}
628
629//////////////////////////////////////////////////////////////////////////////
630
631static SkView* curr_view(SkWindow* wind) {
632    SkView::F2BIter iter(wind);
633    return iter.next();
634}
635
636static bool curr_title(SkWindow* wind, SkString* title) {
637    SkView* view = curr_view(wind);
638    if (view) {
639        SkEvent evt(gTitleEvtName);
640        if (view->doQuery(&evt)) {
641            title->set(evt.findString(gTitleEvtName));
642            return true;
643        }
644    }
645    return false;
646}
647
648void SampleWindow::setZoomCenter(float x, float y)
649{
650    fZoomCenterX = SkFloatToScalar(x);
651    fZoomCenterY = SkFloatToScalar(y);
652}
653
654bool SampleWindow::zoomIn()
655{
656    // Arbitrarily decided
657    if (fFatBitsScale == 25) return false;
658    fFatBitsScale++;
659    this->inval(NULL);
660    return true;
661}
662
663bool SampleWindow::zoomOut()
664{
665    if (fFatBitsScale == 1) return false;
666    fFatBitsScale--;
667    this->inval(NULL);
668    return true;
669}
670
671void SampleWindow::updatePointer(int x, int y)
672{
673    fMouseX = x;
674    fMouseY = y;
675    if (fShowZoomer) {
676        this->inval(NULL);
677    }
678}
679
680static inline SampleWindow::DeviceType cycle_devicetype(SampleWindow::DeviceType ct) {
681    static const SampleWindow::DeviceType gCT[] = {
682        SampleWindow::kPicture_DeviceType,
683#if SK_SUPPORT_GPU
684        SampleWindow::kGPU_DeviceType,
685#if SK_ANGLE
686        SampleWindow::kANGLE_DeviceType,
687#endif // SK_ANGLE
688        SampleWindow::kRaster_DeviceType, // skip the null gpu device in normal cycling
689#endif // SK_SUPPORT_GPU
690        SampleWindow::kRaster_DeviceType
691    };
692    SK_COMPILE_ASSERT(SK_ARRAY_COUNT(gCT) == SampleWindow::kDeviceTypeCnt, array_size_mismatch);
693    return gCT[ct];
694}
695
696static void usage(const char * argv0) {
697    SkDebugf("%s [--slide sampleName] [-i resourcePath] [--msaa sampleCount] [--pictureDir dirPath] [--picture path]\n", argv0);
698    SkDebugf("    sampleName: sample at which to start.\n");
699    SkDebugf("    resourcePath: directory that stores image resources.\n");
700    SkDebugf("    msaa: request multisampling with the given sample count.\n");
701    SkDebugf("    dirPath: path to directory skia pictures are read from\n");
702    SkDebugf("    path: path to skia picture\n");
703}
704
705SampleWindow::SampleWindow(void* hwnd, int argc, char** argv, DeviceManager* devManager)
706    : INHERITED(hwnd)
707    , fDevManager(NULL) {
708
709    this->registerPictFileSamples(argv, argc);
710    this->registerPictFileSample(argv, argc);
711    SkGMRegistyToSampleRegistry();
712    {
713        const SkViewRegister* reg = SkViewRegister::Head();
714        while (reg) {
715            *fSamples.append() = reg->factory();
716            reg = reg->next();
717        }
718    }
719
720    const char* resourcePath = NULL;
721    fCurrIndex = -1;
722    fMSAASampleCount = 0;
723
724    const char* const commandName = argv[0];
725    char* const* stop = argv + argc;
726    for (++argv; argv < stop; ++argv) {
727        if (strcmp(*argv, "-i") == 0) {
728            argv++;
729            if (argv < stop && **argv) {
730                resourcePath = *argv;
731            }
732        } else if (strcmp(*argv, "--slide") == 0) {
733            argv++;
734            if (argv < stop && **argv) {
735                fCurrIndex = findByTitle(*argv);
736                if (fCurrIndex < 0) {
737                    fprintf(stderr, "Unknown sample \"%s\"\n", *argv);
738                    listTitles();
739                }
740            }
741        } else if (strcmp(*argv, "--msaa") == 0) {
742            ++argv;
743            if (argv < stop && **argv) {
744                fMSAASampleCount = atoi(*argv);
745            }
746        } else if (strcmp(*argv, "--list") == 0) {
747            listTitles();
748        }
749        else {
750            usage(commandName);
751        }
752    }
753
754    if (fCurrIndex < 0) {
755        SkString title;
756        if (readTitleFromPrefs(&title)) {
757            fCurrIndex = findByTitle(title.c_str());
758        }
759    }
760
761    if (fCurrIndex < 0) {
762        fCurrIndex = 0;
763    }
764
765    gSampleWindow = this;
766
767#ifdef  PIPE_FILE
768    //Clear existing file or create file if it doesn't exist
769    FILE* f = fopen(FILE_PATH, "wb");
770    fclose(f);
771#endif
772
773    fPicture = NULL;
774
775    fDeviceType = kRaster_DeviceType;
776
777#if DEFAULT_TO_GPU
778    fDeviceType = kGPU_DeviceType;
779#endif
780#if SK_ANGLE && DEFAULT_TO_ANGLE
781    fDeviceType = kANGLE_DeviceType;
782#endif
783
784    fUseClip = false;
785    fNClip = false;
786    fAnimating = false;
787    fRotate = false;
788    fPerspAnim = false;
789    fPerspAnimTime = 0;
790    fScale = false;
791    fRequestGrabImage = false;
792    fPipeState = SkOSMenu::kOffState;
793    fTilingState = SkOSMenu::kOffState;
794    fTileCount.set(1, 1);
795    fMeasureFPS = false;
796    fLCDState = SkOSMenu::kMixedState;
797    fAAState = SkOSMenu::kMixedState;
798    fFilterState = SkOSMenu::kMixedState;
799    fHintingState = SkOSMenu::kMixedState;
800    fFlipAxis = 0;
801    fScrollTestX = fScrollTestY = 0;
802
803    fMouseX = fMouseY = 0;
804    fFatBitsScale = 8;
805    fTypeface = SkTypeface::CreateFromTypeface(NULL, SkTypeface::kBold);
806    fShowZoomer = false;
807
808    fZoomLevel = 0;
809    fZoomScale = SK_Scalar1;
810
811    fMagnify = false;
812    fDebugger = false;
813
814    fSaveToPdf = false;
815    fPdfCanvas = NULL;
816
817    fTransitionNext = 6;
818    fTransitionPrev = 2;
819
820    int sinkID = this->getSinkID();
821    fAppMenu = new SkOSMenu;
822    fAppMenu->setTitle("Global Settings");
823    int itemID;
824
825    itemID =fAppMenu->appendList("Device Type", "Device Type", sinkID, 0,
826                                "Raster", "Picture", "OpenGL",
827#if SK_ANGLE
828                                "ANGLE",
829#endif
830                                NULL);
831    fAppMenu->assignKeyEquivalentToItem(itemID, 'd');
832    itemID = fAppMenu->appendTriState("AA", "AA", sinkID, fAAState);
833    fAppMenu->assignKeyEquivalentToItem(itemID, 'b');
834    itemID = fAppMenu->appendTriState("LCD", "LCD", sinkID, fLCDState);
835    fAppMenu->assignKeyEquivalentToItem(itemID, 'l');
836    itemID = fAppMenu->appendTriState("Filter", "Filter", sinkID, fFilterState);
837    fAppMenu->assignKeyEquivalentToItem(itemID, 'n');
838    itemID = fAppMenu->appendTriState("Hinting", "Hinting", sinkID, fHintingState);
839    fAppMenu->assignKeyEquivalentToItem(itemID, 'h');
840
841    fUsePipeMenuItemID = fAppMenu->appendTriState("Pipe", "Pipe" , sinkID,
842                                                  fPipeState);
843    fAppMenu->assignKeyEquivalentToItem(fUsePipeMenuItemID, 'P');
844
845    itemID = fAppMenu->appendTriState("Tiling", "Tiling", sinkID, fTilingState);
846    fAppMenu->assignKeyEquivalentToItem(itemID, 't');
847
848#ifdef DEBUGGER
849    itemID = fAppMenu->appendSwitch("Debugger", "Debugger", sinkID, fDebugger);
850    fAppMenu->assignKeyEquivalentToItem(itemID, 'q');
851#endif
852    itemID = fAppMenu->appendSwitch("Slide Show", "Slide Show" , sinkID, false);
853    fAppMenu->assignKeyEquivalentToItem(itemID, 'a');
854    itemID = fAppMenu->appendSwitch("Clip", "Clip" , sinkID, fUseClip);
855    fAppMenu->assignKeyEquivalentToItem(itemID, 'c');
856    itemID = fAppMenu->appendSwitch("Flip X", "Flip X" , sinkID, false);
857    fAppMenu->assignKeyEquivalentToItem(itemID, 'x');
858    itemID = fAppMenu->appendSwitch("Flip Y", "Flip Y" , sinkID, false);
859    fAppMenu->assignKeyEquivalentToItem(itemID, 'y');
860    itemID = fAppMenu->appendSwitch("Zoomer", "Zoomer" , sinkID, fShowZoomer);
861    fAppMenu->assignKeyEquivalentToItem(itemID, 'z');
862    itemID = fAppMenu->appendSwitch("Magnify", "Magnify" , sinkID, fMagnify);
863    fAppMenu->assignKeyEquivalentToItem(itemID, 'm');
864    itemID =fAppMenu->appendList("Transition-Next", "Transition-Next", sinkID,
865                                fTransitionNext, "Up", "Up and Right", "Right",
866                                "Down and Right", "Down", "Down and Left",
867                                "Left", "Up and Left", NULL);
868    fAppMenu->assignKeyEquivalentToItem(itemID, 'j');
869    itemID =fAppMenu->appendList("Transition-Prev", "Transition-Prev", sinkID,
870                                fTransitionPrev, "Up", "Up and Right", "Right",
871                                "Down and Right", "Down", "Down and Left",
872                                "Left", "Up and Left", NULL);
873    fAppMenu->assignKeyEquivalentToItem(itemID, 'k');
874    itemID = fAppMenu->appendAction("Save to PDF", sinkID);
875    fAppMenu->assignKeyEquivalentToItem(itemID, 'e');
876
877    this->addMenu(fAppMenu);
878    fSlideMenu = new SkOSMenu;
879    this->addMenu(fSlideMenu);
880
881//    this->setConfig(SkBitmap::kRGB_565_Config);
882    this->setConfig(SkBitmap::kARGB_8888_Config);
883    this->setVisibleP(true);
884    this->setClipToBounds(false);
885
886    skiagm::GM::SetResourcePath(resourcePath);
887
888    this->loadView((*fSamples[fCurrIndex])());
889
890    fPDFData = NULL;
891
892    if (NULL == devManager) {
893        fDevManager = new DefaultDeviceManager();
894    } else {
895        devManager->ref();
896        fDevManager = devManager;
897    }
898    fDevManager->setUpBackend(this, fMSAASampleCount);
899
900    // If another constructor set our dimensions, ensure that our
901    // onSizeChange gets called.
902    if (this->height() && this->width()) {
903        this->onSizeChange();
904    }
905
906    // can't call this synchronously, since it may require a subclass to
907    // to implement, or the caller may need us to have returned from the
908    // constructor first. Hence we post an event to ourselves.
909//    this->updateTitle();
910    postEventToSink(new SkEvent(gUpdateWindowTitleEvtName), this);
911}
912
913SampleWindow::~SampleWindow() {
914    delete fPicture;
915    delete fPdfCanvas;
916    fTypeface->unref();
917
918    SkSafeUnref(fDevManager);
919}
920
921static void make_filepath(SkString* path, const char* dir, const SkString& name) {
922    size_t len = strlen(dir);
923    path->set(dir);
924    if (len > 0 && dir[len - 1] != '/') {
925        path->append("/");
926    }
927    path->append(name);
928}
929
930void SampleWindow::registerPictFileSample(char** argv, int argc) {
931    const char* pict = NULL;
932
933    for (int i = 0; i < argc; ++i) {
934        if (!strcmp(argv[i], "--picture")) {
935            i += 1;
936            if (i < argc) {
937                pict = argv[i];
938                break;
939            }
940        }
941    }
942    if (pict) {
943        SkString path(pict);
944        *fSamples.append() = new PictFileFactory(path);
945    }
946}
947
948void SampleWindow::registerPictFileSamples(char** argv, int argc) {
949    const char* pictDir = NULL;
950
951    for (int i = 0; i < argc; ++i) {
952        if (!strcmp(argv[i], "--pictureDir")) {
953            i += 1;
954            if (i < argc) {
955                pictDir = argv[i];
956                break;
957            }
958        }
959    }
960    if (pictDir) {
961        SkOSFile::Iter iter(pictDir, "skp");
962        SkString filename;
963        while (iter.next(&filename)) {
964            SkString path;
965            make_filepath(&path, pictDir, filename);
966            *fSamples.append() = new PictFileFactory(path);
967        }
968    }
969}
970
971int SampleWindow::findByTitle(const char title[]) {
972    int i, count = fSamples.count();
973    for (i = 0; i < count; i++) {
974        if (getSampleTitle(i).equals(title)) {
975            return i;
976        }
977    }
978    return -1;
979}
980
981void SampleWindow::listTitles() {
982    int count = fSamples.count();
983    SkDebugf("All Slides:\n");
984    for (int i = 0; i < count; i++) {
985        SkDebugf("    %s\n", getSampleTitle(i).c_str());
986    }
987}
988
989static SkBitmap capture_bitmap(SkCanvas* canvas) {
990    SkBitmap bm;
991    const SkBitmap& src = canvas->getDevice()->accessBitmap(false);
992    src.copyTo(&bm, src.config());
993    return bm;
994}
995
996static bool bitmap_diff(SkCanvas* canvas, const SkBitmap& orig,
997                        SkBitmap* diff) {
998    const SkBitmap& src = canvas->getDevice()->accessBitmap(false);
999
1000    SkAutoLockPixels alp0(src);
1001    SkAutoLockPixels alp1(orig);
1002    for (int y = 0; y < src.height(); y++) {
1003        const void* srcP = src.getAddr(0, y);
1004        const void* origP = orig.getAddr(0, y);
1005        size_t bytes = src.width() * src.bytesPerPixel();
1006        if (memcmp(srcP, origP, bytes)) {
1007            SkDebugf("---------- difference on line %d\n", y);
1008            return true;
1009        }
1010    }
1011    return false;
1012}
1013
1014static void drawText(SkCanvas* canvas, SkString string, SkScalar left, SkScalar top, SkPaint& paint)
1015{
1016    SkColor desiredColor = paint.getColor();
1017    paint.setColor(SK_ColorWHITE);
1018    const char* c_str = string.c_str();
1019    size_t size = string.size();
1020    SkRect bounds;
1021    paint.measureText(c_str, size, &bounds);
1022    bounds.offset(left, top);
1023    SkScalar inset = SkIntToScalar(-2);
1024    bounds.inset(inset, inset);
1025    canvas->drawRect(bounds, paint);
1026    if (desiredColor != SK_ColorBLACK) {
1027        paint.setColor(SK_ColorBLACK);
1028        canvas->drawText(c_str, size, left + SK_Scalar1, top + SK_Scalar1, paint);
1029    }
1030    paint.setColor(desiredColor);
1031    canvas->drawText(c_str, size, left, top, paint);
1032}
1033
1034#define XCLIP_N  8
1035#define YCLIP_N  8
1036
1037void SampleWindow::draw(SkCanvas* canvas) {
1038    // update the animation time
1039    if (!gAnimTimePrev && !gAnimTime) {
1040        // first time make delta be 0
1041        gAnimTime = SkTime::GetMSecs();
1042        gAnimTimePrev = gAnimTime;
1043    } else {
1044        gAnimTimePrev = gAnimTime;
1045        gAnimTime = SkTime::GetMSecs();
1046    }
1047
1048    const SkMatrix& localM = fGesture.localM();
1049    if (localM.getType() & SkMatrix::kScale_Mask) {
1050        canvas->setExternalMatrix(&localM);
1051    }
1052    if (fGesture.isActive()) {
1053        this->updateMatrix();
1054    }
1055
1056    if (fNClip) {
1057        this->INHERITED::draw(canvas);
1058        SkBitmap orig = capture_bitmap(canvas);
1059
1060        const SkScalar w = this->width();
1061        const SkScalar h = this->height();
1062        const SkScalar cw = w / XCLIP_N;
1063        const SkScalar ch = h / YCLIP_N;
1064        for (int y = 0; y < YCLIP_N; y++) {
1065            SkRect r;
1066            r.fTop = y * ch;
1067            r.fBottom = (y + 1) * ch;
1068            if (y == YCLIP_N - 1) {
1069                r.fBottom = h;
1070            }
1071            for (int x = 0; x < XCLIP_N; x++) {
1072                SkAutoCanvasRestore acr(canvas, true);
1073                r.fLeft = x * cw;
1074                r.fRight = (x + 1) * cw;
1075                if (x == XCLIP_N - 1) {
1076                    r.fRight = w;
1077                }
1078                canvas->clipRect(r);
1079                this->INHERITED::draw(canvas);
1080            }
1081        }
1082
1083        SkBitmap diff;
1084        if (bitmap_diff(canvas, orig, &diff)) {
1085        }
1086    } else {
1087        const SkScalar cw = SkScalarDiv(this->width(), SkIntToScalar(fTileCount.width()));
1088        const SkScalar ch = SkScalarDiv(this->height(), SkIntToScalar(fTileCount.height()));
1089
1090        for (int y = 0; y < fTileCount.height(); ++y) {
1091            for (int x = 0; x < fTileCount.width(); ++x) {
1092                SkAutoCanvasRestore acr(canvas, true);
1093                canvas->clipRect(SkRect::MakeXYWH(x * cw, y * ch, cw, ch));
1094                this->INHERITED::draw(canvas);
1095            }
1096        }
1097
1098        if (!fTileCount.equals(1, 1)) {
1099            SkPaint paint;
1100            paint.setColor(0x60FF00FF);
1101            paint.setStyle(SkPaint::kStroke_Style);
1102            for (int y = 0; y < fTileCount.height(); ++y) {
1103                for (int x = 0; x < fTileCount.width(); ++x) {
1104                    canvas->drawRect(SkRect::MakeXYWH(x * cw, y * ch, cw, ch), paint);
1105                }
1106            }
1107        }
1108    }
1109    if (fShowZoomer && !fSaveToPdf) {
1110        showZoomer(canvas);
1111    }
1112    if (fMagnify && !fSaveToPdf) {
1113        magnify(canvas);
1114    }
1115
1116    // do this last
1117    fDevManager->publishCanvas(fDeviceType, canvas, this);
1118}
1119
1120static float clipW = 200;
1121static float clipH = 200;
1122void SampleWindow::magnify(SkCanvas* canvas) {
1123    SkRect r;
1124    int count = canvas->save();
1125
1126    SkMatrix m = canvas->getTotalMatrix();
1127    if (!m.invert(&m)) {
1128        return;
1129    }
1130    SkPoint offset, center;
1131    SkScalar mouseX = fMouseX * SK_Scalar1;
1132    SkScalar mouseY = fMouseY * SK_Scalar1;
1133    m.mapXY(mouseX - clipW/2, mouseY - clipH/2, &offset);
1134    m.mapXY(mouseX, mouseY, &center);
1135
1136    r.set(0, 0, clipW * m.getScaleX(), clipH * m.getScaleX());
1137    r.offset(offset.fX, offset.fY);
1138
1139    SkPaint paint;
1140    paint.setColor(0xFF66AAEE);
1141    paint.setStyle(SkPaint::kStroke_Style);
1142    paint.setStrokeWidth(10.f * m.getScaleX());
1143    //lense offset
1144    //canvas->translate(0, -250);
1145    canvas->drawRect(r, paint);
1146    canvas->clipRect(r);
1147
1148    m = canvas->getTotalMatrix();
1149    m.setTranslate(-center.fX, -center.fY);
1150    m.postScale(0.5f * fFatBitsScale, 0.5f * fFatBitsScale);
1151    m.postTranslate(center.fX, center.fY);
1152    canvas->concat(m);
1153
1154    this->INHERITED::draw(canvas);
1155
1156    canvas->restoreToCount(count);
1157}
1158
1159void SampleWindow::showZoomer(SkCanvas* canvas) {
1160        int count = canvas->save();
1161        canvas->resetMatrix();
1162        // Ensure the mouse position is on screen.
1163        int width = SkScalarRound(this->width());
1164        int height = SkScalarRound(this->height());
1165        if (fMouseX >= width) fMouseX = width - 1;
1166        else if (fMouseX < 0) fMouseX = 0;
1167        if (fMouseY >= height) fMouseY = height - 1;
1168        else if (fMouseY < 0) fMouseY = 0;
1169
1170        SkBitmap bitmap = capture_bitmap(canvas);
1171        bitmap.lockPixels();
1172
1173        // Find the size of the zoomed in view, forced to be odd, so the examined pixel is in the middle.
1174        int zoomedWidth = (width >> 1) | 1;
1175        int zoomedHeight = (height >> 1) | 1;
1176        SkIRect src;
1177        src.set(0, 0, zoomedWidth / fFatBitsScale, zoomedHeight / fFatBitsScale);
1178        src.offset(fMouseX - (src.width()>>1), fMouseY - (src.height()>>1));
1179        SkRect dest;
1180        dest.set(0, 0, SkIntToScalar(zoomedWidth), SkIntToScalar(zoomedHeight));
1181        dest.offset(SkIntToScalar(width - zoomedWidth), SkIntToScalar(height - zoomedHeight));
1182        SkPaint paint;
1183        // Clear the background behind our zoomed in view
1184        paint.setColor(SK_ColorWHITE);
1185        canvas->drawRect(dest, paint);
1186        canvas->drawBitmapRect(bitmap, &src, dest);
1187        paint.setColor(SK_ColorBLACK);
1188        paint.setStyle(SkPaint::kStroke_Style);
1189        // Draw a border around the pixel in the middle
1190        SkRect originalPixel;
1191        originalPixel.set(SkIntToScalar(fMouseX), SkIntToScalar(fMouseY), SkIntToScalar(fMouseX + 1), SkIntToScalar(fMouseY + 1));
1192        SkMatrix matrix;
1193        SkRect scalarSrc;
1194        scalarSrc.set(src);
1195        SkColor color = bitmap.getColor(fMouseX, fMouseY);
1196        if (matrix.setRectToRect(scalarSrc, dest, SkMatrix::kFill_ScaleToFit)) {
1197            SkRect pixel;
1198            matrix.mapRect(&pixel, originalPixel);
1199            // TODO Perhaps measure the values and make the outline white if it's "dark"
1200            if (color == SK_ColorBLACK) {
1201                paint.setColor(SK_ColorWHITE);
1202            }
1203            canvas->drawRect(pixel, paint);
1204        }
1205        paint.setColor(SK_ColorBLACK);
1206        // Draw a border around the destination rectangle
1207        canvas->drawRect(dest, paint);
1208        paint.setStyle(SkPaint::kStrokeAndFill_Style);
1209        // Identify the pixel and its color on screen
1210        paint.setTypeface(fTypeface);
1211        paint.setAntiAlias(true);
1212        SkScalar lineHeight = paint.getFontMetrics(NULL);
1213        SkString string;
1214        string.appendf("(%i, %i)", fMouseX, fMouseY);
1215        SkScalar left = dest.fLeft + SkIntToScalar(3);
1216        SkScalar i = SK_Scalar1;
1217        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1218        // Alpha
1219        i += SK_Scalar1;
1220        string.reset();
1221        string.appendf("A: %X", SkColorGetA(color));
1222        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1223        // Red
1224        i += SK_Scalar1;
1225        string.reset();
1226        string.appendf("R: %X", SkColorGetR(color));
1227        paint.setColor(SK_ColorRED);
1228        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1229        // Green
1230        i += SK_Scalar1;
1231        string.reset();
1232        string.appendf("G: %X", SkColorGetG(color));
1233        paint.setColor(SK_ColorGREEN);
1234        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1235        // Blue
1236        i += SK_Scalar1;
1237        string.reset();
1238        string.appendf("B: %X", SkColorGetB(color));
1239        paint.setColor(SK_ColorBLUE);
1240        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1241        canvas->restoreToCount(count);
1242}
1243
1244void SampleWindow::onDraw(SkCanvas* canvas) {
1245}
1246
1247#include "SkColorPriv.h"
1248
1249#if 0 // UNUSED
1250static void reverseRedAndBlue(const SkBitmap& bm) {
1251    SkASSERT(bm.config() == SkBitmap::kARGB_8888_Config);
1252    uint8_t* p = (uint8_t*)bm.getPixels();
1253    uint8_t* stop = p + bm.getSize();
1254    while (p < stop) {
1255        // swap red/blue (to go from ARGB(int) to RGBA(memory) and premultiply
1256        unsigned scale = SkAlpha255To256(p[3]);
1257        unsigned r = p[2];
1258        unsigned b = p[0];
1259        p[0] = SkAlphaMul(r, scale);
1260        p[1] = SkAlphaMul(p[1], scale);
1261        p[2] = SkAlphaMul(b, scale);
1262        p += 4;
1263    }
1264}
1265#endif
1266
1267void SampleWindow::saveToPdf()
1268{
1269    fSaveToPdf = true;
1270    this->inval(NULL);
1271}
1272
1273SkCanvas* SampleWindow::beforeChildren(SkCanvas* canvas) {
1274    if (fSaveToPdf) {
1275        const SkBitmap& bmp = canvas->getDevice()->accessBitmap(false);
1276        SkISize size = SkISize::Make(bmp.width(), bmp.height());
1277        SkPDFDevice* pdfDevice = new SkPDFDevice(size, size,
1278                canvas->getTotalMatrix());
1279        fPdfCanvas = new SkCanvas(pdfDevice);
1280        pdfDevice->unref();
1281        canvas = fPdfCanvas;
1282    } else {
1283        switch (fDeviceType) {
1284            case kRaster_DeviceType:
1285                // fallthrough
1286#if SK_SUPPORT_GPU
1287            case kGPU_DeviceType:
1288                // fallthrough
1289#if SK_ANGLE
1290            case kANGLE_DeviceType:
1291#endif // SK_ANGLE
1292#endif // SK_SUPPORT_GPU
1293                canvas = this->INHERITED::beforeChildren(canvas);
1294                break;
1295            case kPicture_DeviceType:
1296                fPicture = new SkPicture;
1297                canvas = fPicture->beginRecording(9999, 9999);
1298                break;
1299#if SK_SUPPORT_GPU
1300            case kNullGPU_DeviceType:
1301                break;
1302#endif
1303            default:
1304                SkASSERT(false);
1305                break;
1306        }
1307    }
1308
1309    if (fUseClip) {
1310        canvas->drawColor(0xFFFF88FF);
1311        canvas->clipPath(fClipPath, SkRegion::kIntersect_Op, true);
1312    }
1313
1314    return canvas;
1315}
1316
1317static void paint_rgn(const SkBitmap& bm, const SkIRect& r,
1318                      const SkRegion& rgn) {
1319    SkCanvas    canvas(bm);
1320    SkRegion    inval(rgn);
1321
1322    inval.translate(r.fLeft, r.fTop);
1323    canvas.clipRegion(inval);
1324    canvas.drawColor(0xFFFF8080);
1325}
1326#include "SkData.h"
1327void SampleWindow::afterChildren(SkCanvas* orig) {
1328    if (fSaveToPdf) {
1329        fSaveToPdf = false;
1330        if (fShowZoomer) {
1331            showZoomer(fPdfCanvas);
1332        }
1333        SkString name;
1334        name.printf("%s.pdf", this->getTitle());
1335        SkPDFDocument doc;
1336        SkPDFDevice* device = static_cast<SkPDFDevice*>(fPdfCanvas->getDevice());
1337        doc.appendPage(device);
1338#ifdef SK_BUILD_FOR_ANDROID
1339        name.prepend("/sdcard/");
1340#endif
1341
1342#ifdef SK_BUILD_FOR_IOS
1343        SkDynamicMemoryWStream mstream;
1344        doc.emitPDF(&mstream);
1345        fPDFData = mstream.copyToData();
1346#endif
1347        SkFILEWStream stream(name.c_str());
1348        if (stream.isValid()) {
1349            doc.emitPDF(&stream);
1350            const char* desc = "File saved from Skia SampleApp";
1351            this->onPDFSaved(this->getTitle(), desc, name.c_str());
1352        }
1353
1354        delete fPdfCanvas;
1355        fPdfCanvas = NULL;
1356
1357        // We took over the draw calls in order to create the PDF, so we need
1358        // to redraw.
1359        this->inval(NULL);
1360        return;
1361    }
1362
1363    if (fRequestGrabImage) {
1364        fRequestGrabImage = false;
1365
1366        SkDevice* device = orig->getDevice();
1367        SkBitmap bmp;
1368        if (device->accessBitmap(false).copyTo(&bmp, SkBitmap::kARGB_8888_Config)) {
1369            static int gSampleGrabCounter;
1370            SkString name;
1371            name.printf("sample_grab_%d.png", gSampleGrabCounter++);
1372            SkImageEncoder::EncodeFile(name.c_str(), bmp,
1373                                       SkImageEncoder::kPNG_Type, 100);
1374        }
1375    }
1376
1377    if (kPicture_DeviceType == fDeviceType) {
1378        if (true) {
1379            SkPicture* pict = new SkPicture(*fPicture);
1380            fPicture->unref();
1381            this->installDrawFilter(orig);
1382            orig->drawPicture(*pict);
1383            pict->unref();
1384        } else if (true) {
1385            SkDynamicMemoryWStream ostream;
1386            fPicture->serialize(&ostream);
1387            fPicture->unref();
1388
1389            SkAutoDataUnref data(ostream.copyToData());
1390            SkMemoryStream istream(data->data(), data->size());
1391            SkPicture pict(&istream);
1392            orig->drawPicture(pict);
1393        } else {
1394            fPicture->draw(orig);
1395            fPicture->unref();
1396        }
1397        fPicture = NULL;
1398    }
1399
1400    // Do this after presentGL and other finishing, rather than in afterChild
1401    if (fMeasureFPS && fMeasureFPS_Time) {
1402        fMeasureFPS_Time = SkTime::GetMSecs() - fMeasureFPS_Time;
1403        this->updateTitle();
1404        this->postInvalDelay();
1405    }
1406
1407    //    if ((fScrollTestX | fScrollTestY) != 0)
1408    if (false) {
1409        const SkBitmap& bm = orig->getDevice()->accessBitmap(true);
1410        int dx = fScrollTestX * 7;
1411        int dy = fScrollTestY * 7;
1412        SkIRect r;
1413        SkRegion inval;
1414
1415        r.set(50, 50, 50+100, 50+100);
1416        bm.scrollRect(&r, dx, dy, &inval);
1417        paint_rgn(bm, r, inval);
1418    }
1419#ifdef DEBUGGER
1420    SkView* curr = curr_view(this);
1421    if (fDebugger && !is_debugger(curr) && !is_transition(curr) && !is_overview(curr)) {
1422        //Stop Pipe when fDebugger is active
1423        if (fPipeState != SkOSMenu::kOffState) {
1424            fPipeState = SkOSMenu::kOffState;
1425            (void)SampleView::SetUsePipe(curr, fPipeState);
1426            fAppMenu->getItemByID(fUsePipeMenuItemID)->setTriState(fPipeState);
1427            this->onUpdateMenu(fAppMenu);
1428        }
1429
1430        //Reset any transformations
1431        fGesture.stop();
1432        fGesture.reset();
1433
1434        this->loadView(create_debugger(gTempDataStore.begin(),
1435                                       gTempDataStore.count()));
1436    }
1437#endif
1438}
1439
1440void SampleWindow::beforeChild(SkView* child, SkCanvas* canvas) {
1441    if (fScale) {
1442        SkScalar scale = SK_Scalar1 * 7 / 10;
1443        SkScalar cx = this->width() / 2;
1444        SkScalar cy = this->height() / 2;
1445        canvas->translate(cx, cy);
1446        canvas->scale(scale, scale);
1447        canvas->translate(-cx, -cy);
1448    }
1449    if (fRotate) {
1450        SkScalar cx = this->width() / 2;
1451        SkScalar cy = this->height() / 2;
1452        canvas->translate(cx, cy);
1453        canvas->rotate(SkIntToScalar(30));
1454        canvas->translate(-cx, -cy);
1455    }
1456    if (fPerspAnim) {
1457        fPerspAnimTime += SampleCode::GetAnimSecondsDelta();
1458
1459        static const SkScalar gAnimPeriod = 10 * SK_Scalar1;
1460        static const SkScalar gAnimMag = SK_Scalar1 / 1000;
1461        SkScalar t = SkScalarMod(fPerspAnimTime, gAnimPeriod);
1462        if (SkScalarFloorToInt(SkScalarDiv(fPerspAnimTime, gAnimPeriod)) & 0x1) {
1463            t = gAnimPeriod - t;
1464        }
1465        t = 2 * t - gAnimPeriod;
1466        t = SkScalarMul(SkScalarDiv(t, gAnimPeriod), gAnimMag);
1467        SkMatrix m;
1468        m.reset();
1469        m.setPerspY(t);
1470        canvas->concat(m);
1471    }
1472
1473    this->installDrawFilter(canvas);
1474
1475    if (fMeasureFPS) {
1476        fMeasureFPS_Time = 0;   // 0 means the child is not aware of repeat-draw
1477        if (SampleView::SetRepeatDraw(child, FPS_REPEAT_COUNT)) {
1478            fMeasureFPS_Time = SkTime::GetMSecs();
1479        }
1480    } else {
1481        (void)SampleView::SetRepeatDraw(child, 1);
1482    }
1483    if (fPerspAnim) {
1484        this->inval(NULL);
1485    }
1486}
1487
1488void SampleWindow::afterChild(SkView* child, SkCanvas* canvas) {
1489    canvas->setDrawFilter(NULL);
1490}
1491
1492static SkBitmap::Config gConfigCycle[] = {
1493    SkBitmap::kNo_Config,           // none -> none
1494    SkBitmap::kNo_Config,           // a1 -> none
1495    SkBitmap::kNo_Config,           // a8 -> none
1496    SkBitmap::kNo_Config,           // index8 -> none
1497    SkBitmap::kARGB_4444_Config,    // 565 -> 4444
1498    SkBitmap::kARGB_8888_Config,    // 4444 -> 8888
1499    SkBitmap::kRGB_565_Config       // 8888 -> 565
1500};
1501
1502static SkBitmap::Config cycle_configs(SkBitmap::Config c) {
1503    return gConfigCycle[c];
1504}
1505
1506void SampleWindow::changeZoomLevel(float delta) {
1507    fZoomLevel += SkFloatToScalar(delta);
1508    if (fZoomLevel > 0) {
1509        fZoomLevel = SkMinScalar(fZoomLevel, MAX_ZOOM_LEVEL);
1510        fZoomScale = fZoomLevel + SK_Scalar1;
1511    } else if (fZoomLevel < 0) {
1512        fZoomLevel = SkMaxScalar(fZoomLevel, MIN_ZOOM_LEVEL);
1513        fZoomScale = SK_Scalar1 / (SK_Scalar1 - fZoomLevel);
1514    } else {
1515        fZoomScale = SK_Scalar1;
1516    }
1517    this->updateMatrix();
1518}
1519
1520void SampleWindow::updateMatrix(){
1521    SkMatrix m;
1522    m.reset();
1523    if (fZoomLevel) {
1524        SkPoint center;
1525        //m = this->getLocalMatrix();//.invert(&m);
1526        m.mapXY(fZoomCenterX, fZoomCenterY, &center);
1527        SkScalar cx = center.fX;
1528        SkScalar cy = center.fY;
1529
1530        m.setTranslate(-cx, -cy);
1531        m.postScale(fZoomScale, fZoomScale);
1532        m.postTranslate(cx, cy);
1533    }
1534
1535    if (fFlipAxis) {
1536        m.preTranslate(fZoomCenterX, fZoomCenterY);
1537        if (fFlipAxis & kFlipAxis_X) {
1538            m.preScale(-SK_Scalar1, SK_Scalar1);
1539        }
1540        if (fFlipAxis & kFlipAxis_Y) {
1541            m.preScale(SK_Scalar1, -SK_Scalar1);
1542        }
1543        m.preTranslate(-fZoomCenterX, -fZoomCenterY);
1544        //canvas->concat(m);
1545    }
1546    // Apply any gesture matrix
1547    m.preConcat(fGesture.localM());
1548    m.preConcat(fGesture.globalM());
1549
1550    this->setLocalMatrix(m);
1551
1552    this->updateTitle();
1553    this->inval(NULL);
1554}
1555bool SampleWindow::previousSample() {
1556    fCurrIndex = (fCurrIndex - 1 + fSamples.count()) % fSamples.count();
1557    this->loadView(create_transition(curr_view(this), (*fSamples[fCurrIndex])(),
1558                                     fTransitionPrev));
1559    return true;
1560}
1561
1562bool SampleWindow::nextSample() {
1563    fCurrIndex = (fCurrIndex + 1) % fSamples.count();
1564    this->loadView(create_transition(curr_view(this), (*fSamples[fCurrIndex])(),
1565                                     fTransitionNext));
1566    return true;
1567}
1568
1569bool SampleWindow::goToSample(int i) {
1570    fCurrIndex = (i) % fSamples.count();
1571    this->loadView(create_transition(curr_view(this),(*fSamples[fCurrIndex])(), 6));
1572    return true;
1573}
1574
1575SkString SampleWindow::getSampleTitle(int i) {
1576    SkView* view = (*fSamples[i])();
1577    SkString title;
1578    SampleCode::RequestTitle(view, &title);
1579    view->unref();
1580    return title;
1581}
1582
1583int SampleWindow::sampleCount() {
1584    return fSamples.count();
1585}
1586
1587void SampleWindow::showOverview() {
1588    this->loadView(create_transition(curr_view(this),
1589                                     create_overview(fSamples.count(), fSamples.begin()),
1590                                     4));
1591}
1592
1593void SampleWindow::installDrawFilter(SkCanvas* canvas) {
1594    canvas->setDrawFilter(new FlagsDrawFilter(fLCDState, fAAState,
1595                                              fFilterState, fHintingState))->unref();
1596}
1597
1598void SampleWindow::postAnimatingEvent() {
1599    if (fAnimating) {
1600        (new SkEvent(ANIMATING_EVENTTYPE, this->getSinkID()))->postDelay(ANIMATING_DELAY);
1601    }
1602}
1603
1604bool SampleWindow::onEvent(const SkEvent& evt) {
1605    if (evt.isType(gUpdateWindowTitleEvtName)) {
1606        this->updateTitle();
1607        return true;
1608    }
1609    if (evt.isType(ANIMATING_EVENTTYPE)) {
1610        if (fAnimating) {
1611            this->nextSample();
1612            this->postAnimatingEvent();
1613        }
1614        return true;
1615    }
1616    if (evt.isType("replace-transition-view")) {
1617        this->loadView((SkView*)SkEventSink::FindSink(evt.getFast32()));
1618        return true;
1619    }
1620    if (evt.isType("set-curr-index")) {
1621        this->goToSample(evt.getFast32());
1622        return true;
1623    }
1624    if (isInvalEvent(evt)) {
1625        this->inval(NULL);
1626        return true;
1627    }
1628    int selected = -1;
1629    if (SkOSMenu::FindListIndex(evt, "Device Type", &selected)) {
1630        this->setDeviceType((DeviceType)selected);
1631        return true;
1632    }
1633    if (SkOSMenu::FindTriState(evt, "Pipe", &fPipeState)) {
1634#ifdef PIPE_NET
1635        if (!fPipeState != SkOSMenu::kOnState)
1636            gServer.disconnectAll();
1637#endif
1638        (void)SampleView::SetUsePipe(curr_view(this), fPipeState);
1639        this->updateTitle();
1640        this->inval(NULL);
1641        return true;
1642    }
1643    if (SkOSMenu::FindTriState(evt, "Tiling", &fTilingState)) {
1644        int nx = 1, ny = 1;
1645        switch (fTilingState) {
1646            case SkOSMenu::kOffState:   nx = 1; ny = 1; break;
1647            case SkOSMenu::kMixedState: nx = 1; ny = 16; break;
1648            case SkOSMenu::kOnState:    nx = 4; ny = 4; break;
1649        }
1650        fTileCount.set(nx, ny);
1651        this->inval(NULL);
1652        return true;
1653    }
1654    if (SkOSMenu::FindSwitchState(evt, "Slide Show", NULL)) {
1655        this->toggleSlideshow();
1656        return true;
1657    }
1658    if (SkOSMenu::FindTriState(evt, "AA", &fAAState) ||
1659        SkOSMenu::FindTriState(evt, "LCD", &fLCDState) ||
1660        SkOSMenu::FindTriState(evt, "Filter", &fFilterState) ||
1661        SkOSMenu::FindTriState(evt, "Hinting", &fHintingState) ||
1662        SkOSMenu::FindSwitchState(evt, "Clip", &fUseClip) ||
1663        SkOSMenu::FindSwitchState(evt, "Zoomer", &fShowZoomer) ||
1664        SkOSMenu::FindSwitchState(evt, "Magnify", &fMagnify) ||
1665        SkOSMenu::FindListIndex(evt, "Transition-Next", &fTransitionNext) ||
1666        SkOSMenu::FindListIndex(evt, "Transition-Prev", &fTransitionPrev)) {
1667        this->inval(NULL);
1668        this->updateTitle();
1669        return true;
1670    }
1671    if (SkOSMenu::FindSwitchState(evt, "Flip X", NULL)) {
1672        fFlipAxis ^= kFlipAxis_X;
1673        this->updateMatrix();
1674        return true;
1675    }
1676    if (SkOSMenu::FindSwitchState(evt, "Flip Y", NULL)) {
1677        fFlipAxis ^= kFlipAxis_Y;
1678        this->updateMatrix();
1679        return true;
1680    }
1681    if (SkOSMenu::FindAction(evt,"Save to PDF")) {
1682        this->saveToPdf();
1683        return true;
1684    }
1685#ifdef DEBUGGER
1686    if (SkOSMenu::FindSwitchState(evt, "Debugger", &fDebugger)) {
1687        if (fDebugger) {
1688            fPipeState = SkOSMenu::kOnState;
1689            (void)SampleView::SetUsePipe(curr_view(this), fPipeState);
1690        } else {
1691            this->loadView((*fSamples[fCurrIndex])());
1692        }
1693        this->inval(NULL);
1694        return true;
1695    }
1696#endif
1697    return this->INHERITED::onEvent(evt);
1698}
1699
1700bool SampleWindow::onQuery(SkEvent* query) {
1701    if (query->isType("get-slide-count")) {
1702        query->setFast32(fSamples.count());
1703        return true;
1704    }
1705    if (query->isType("get-slide-title")) {
1706        SkView* view = (*fSamples[query->getFast32()])();
1707        SkEvent evt(gTitleEvtName);
1708        if (view->doQuery(&evt)) {
1709            query->setString("title", evt.findString(gTitleEvtName));
1710        }
1711        SkSafeUnref(view);
1712        return true;
1713    }
1714    if (query->isType("use-fast-text")) {
1715        SkEvent evt(gFastTextEvtName);
1716        return curr_view(this)->doQuery(&evt);
1717    }
1718    if (query->isType("ignore-window-bitmap")) {
1719        query->setFast32(this->getGrContext() != NULL);
1720        return true;
1721    }
1722    return this->INHERITED::onQuery(query);
1723}
1724
1725#if 0 // UNUSED
1726static void cleanup_for_filename(SkString* name) {
1727    char* str = name->writable_str();
1728    for (size_t i = 0; i < name->size(); i++) {
1729        switch (str[i]) {
1730            case ':': str[i] = '-'; break;
1731            case '/': str[i] = '-'; break;
1732            case ' ': str[i] = '_'; break;
1733            default: break;
1734        }
1735    }
1736}
1737#endif
1738
1739bool SampleWindow::onHandleChar(SkUnichar uni) {
1740    {
1741        SkView* view = curr_view(this);
1742        if (view) {
1743            SkEvent evt(gCharEvtName);
1744            evt.setFast32(uni);
1745            if (view->doQuery(&evt)) {
1746                return true;
1747            }
1748        }
1749    }
1750
1751    int dx = 0xFF;
1752    int dy = 0xFF;
1753
1754    switch (uni) {
1755        case '5': dx =  0; dy =  0; break;
1756        case '8': dx =  0; dy = -1; break;
1757        case '6': dx =  1; dy =  0; break;
1758        case '2': dx =  0; dy =  1; break;
1759        case '4': dx = -1; dy =  0; break;
1760        case '7': dx = -1; dy = -1; break;
1761        case '9': dx =  1; dy = -1; break;
1762        case '3': dx =  1; dy =  1; break;
1763        case '1': dx = -1; dy =  1; break;
1764
1765        default:
1766            break;
1767    }
1768
1769    if (0xFF != dx && 0xFF != dy) {
1770        if ((dx | dy) == 0) {
1771            fScrollTestX = fScrollTestY = 0;
1772        } else {
1773            fScrollTestX += dx;
1774            fScrollTestY += dy;
1775        }
1776        this->inval(NULL);
1777        return true;
1778    }
1779
1780    switch (uni) {
1781        case 'f':
1782            // only
1783            toggleFPS();
1784            break;
1785        case 'g':
1786            fRequestGrabImage = true;
1787            this->inval(NULL);
1788            break;
1789        case 'i':
1790            this->zoomIn();
1791            break;
1792        case 'o':
1793            this->zoomOut();
1794            break;
1795        case 'r':
1796            fRotate = !fRotate;
1797            this->inval(NULL);
1798            this->updateTitle();
1799            return true;
1800        case 'k':
1801            fPerspAnim = !fPerspAnim;
1802            this->inval(NULL);
1803            this->updateTitle();
1804            return true;
1805#if SK_SUPPORT_GPU
1806        case '\\':
1807            this->setDeviceType(kNullGPU_DeviceType);
1808            this->inval(NULL);
1809            this->updateTitle();
1810            return true;
1811        case 'p':
1812            {
1813                GrContext* grContext = this->getGrContext();
1814                if (grContext) {
1815                    size_t cacheBytes = grContext->getGpuTextureCacheBytes();
1816                    grContext->freeGpuResources();
1817                    SkDebugf("Purged %d bytes from the GPU resource cache.\n",
1818                             cacheBytes);
1819                }
1820            }
1821            return true;
1822#endif
1823        case 's':
1824            fScale = !fScale;
1825            this->inval(NULL);
1826            this->updateTitle();
1827            return true;
1828        default:
1829            break;
1830    }
1831
1832    if (fAppMenu->handleKeyEquivalent(uni)|| fSlideMenu->handleKeyEquivalent(uni)) {
1833        this->onUpdateMenu(fAppMenu);
1834        this->onUpdateMenu(fSlideMenu);
1835        return true;
1836    }
1837    return this->INHERITED::onHandleChar(uni);
1838}
1839
1840void SampleWindow::setDeviceType(DeviceType type) {
1841    if (type == fDeviceType)
1842        return;
1843
1844    fDevManager->tearDownBackend(this);
1845
1846    fDeviceType = type;
1847
1848    fDevManager->setUpBackend(this, fMSAASampleCount);
1849
1850    this->updateTitle();
1851    this->inval(NULL);
1852}
1853
1854void SampleWindow::toggleSlideshow() {
1855    fAnimating = !fAnimating;
1856    this->postAnimatingEvent();
1857    this->updateTitle();
1858}
1859
1860void SampleWindow::toggleRendering() {
1861    this->setDeviceType(cycle_devicetype(fDeviceType));
1862    this->updateTitle();
1863    this->inval(NULL);
1864}
1865
1866void SampleWindow::toggleFPS() {
1867    fMeasureFPS = !fMeasureFPS;
1868    this->updateTitle();
1869    this->inval(NULL);
1870}
1871
1872#include "SkDumpCanvas.h"
1873
1874bool SampleWindow::onHandleKey(SkKey key) {
1875    {
1876        SkView* view = curr_view(this);
1877        if (view) {
1878            SkEvent evt(gKeyEvtName);
1879            evt.setFast32(key);
1880            if (view->doQuery(&evt)) {
1881                return true;
1882            }
1883        }
1884    }
1885    switch (key) {
1886        case kRight_SkKey:
1887            if (this->nextSample()) {
1888                return true;
1889            }
1890            break;
1891        case kLeft_SkKey:
1892            if (this->previousSample()) {
1893                return true;
1894            }
1895            return true;
1896        case kUp_SkKey:
1897            if (USE_ARROWS_FOR_ZOOM) {
1898                this->changeZoomLevel(1.f);
1899            } else {
1900                fNClip = !fNClip;
1901                this->inval(NULL);
1902                this->updateTitle();
1903            }
1904            return true;
1905        case kDown_SkKey:
1906            if (USE_ARROWS_FOR_ZOOM) {
1907                this->changeZoomLevel(-1.f);
1908            } else {
1909                this->setConfig(cycle_configs(this->getBitmap().config()));
1910                this->updateTitle();
1911            }
1912            return true;
1913        case kOK_SkKey: {
1914            SkString title;
1915            if (curr_title(this, &title)) {
1916                writeTitleToPrefs(title.c_str());
1917            }
1918            return true;
1919        }
1920        case kBack_SkKey:
1921            this->showOverview();
1922            return true;
1923        default:
1924            break;
1925    }
1926    return this->INHERITED::onHandleKey(key);
1927}
1928
1929///////////////////////////////////////////////////////////////////////////////
1930
1931static const char gGestureClickType[] = "GestureClickType";
1932
1933bool SampleWindow::onDispatchClick(int x, int y, Click::State state,
1934        void* owner) {
1935    if (Click::kMoved_State == state) {
1936        updatePointer(x, y);
1937    }
1938    int w = SkScalarRound(this->width());
1939    int h = SkScalarRound(this->height());
1940
1941    // check for the resize-box
1942    if (w - x < 16 && h - y < 16) {
1943        return false;   // let the OS handle the click
1944    }
1945    else if (fMagnify) {
1946        //it's only necessary to update the drawing if there's a click
1947        this->inval(NULL);
1948        return false; //prevent dragging while magnify is enabled
1949    }
1950    else {
1951        return this->INHERITED::onDispatchClick(x, y, state, owner);
1952    }
1953}
1954
1955class GestureClick : public SkView::Click {
1956public:
1957    GestureClick(SkView* target) : SkView::Click(target) {
1958        this->setType(gGestureClickType);
1959    }
1960
1961    static bool IsGesture(Click* click) {
1962        return click->isType(gGestureClickType);
1963    }
1964};
1965
1966SkView::Click* SampleWindow::onFindClickHandler(SkScalar x, SkScalar y) {
1967    return new GestureClick(this);
1968}
1969
1970bool SampleWindow::onClick(Click* click) {
1971    if (GestureClick::IsGesture(click)) {
1972        float x = static_cast<float>(click->fICurr.fX);
1973        float y = static_cast<float>(click->fICurr.fY);
1974
1975        switch (click->fState) {
1976            case SkView::Click::kDown_State:
1977                fGesture.touchBegin(click->fOwner, x, y);
1978                break;
1979            case SkView::Click::kMoved_State:
1980                fGesture.touchMoved(click->fOwner, x, y);
1981                this->updateMatrix();
1982                break;
1983            case SkView::Click::kUp_State:
1984                fGesture.touchEnd(click->fOwner);
1985                this->updateMatrix();
1986                break;
1987        }
1988        return true;
1989    }
1990    return false;
1991}
1992
1993///////////////////////////////////////////////////////////////////////////////
1994
1995void SampleWindow::loadView(SkView* view) {
1996    SkView::F2BIter iter(this);
1997    SkView* prev = iter.next();
1998    if (prev) {
1999        prev->detachFromParent();
2000    }
2001
2002    view->setVisibleP(true);
2003    view->setClipToBounds(false);
2004    this->attachChildToFront(view)->unref();
2005    view->setSize(this->width(), this->height());
2006
2007    //repopulate the slide menu when a view is loaded
2008    fSlideMenu->reset();
2009#ifdef DEBUGGER
2010    if (!is_debugger(view) && !is_overview(view) && !is_transition(view) && fDebugger) {
2011        //Force Pipe to be on if using debugger
2012        fPipeState = SkOSMenu::kOnState;
2013    }
2014#endif
2015    (void)SampleView::SetUsePipe(view, fPipeState);
2016    if (SampleView::IsSampleView(view))
2017        ((SampleView*)view)->requestMenu(fSlideMenu);
2018    this->onUpdateMenu(fSlideMenu);
2019    this->updateTitle();
2020}
2021
2022static const char* gConfigNames[] = {
2023    "unknown config",
2024    "A1",
2025    "A8",
2026    "Index8",
2027    "565",
2028    "4444",
2029    "8888"
2030};
2031
2032static const char* configToString(SkBitmap::Config c) {
2033    return gConfigNames[c];
2034}
2035
2036static const char* gDeviceTypePrefix[] = {
2037    "raster: ",
2038    "picture: ",
2039#if SK_SUPPORT_GPU
2040    "opengl: ",
2041#if SK_ANGLE
2042    "angle: ",
2043#endif // SK_ANGLE
2044    "null-gl: "
2045#endif // SK_SUPPORT_GPU
2046};
2047SK_COMPILE_ASSERT(SK_ARRAY_COUNT(gDeviceTypePrefix) == SampleWindow::kDeviceTypeCnt,
2048                  array_size_mismatch);
2049
2050static const bool gDeviceTypeIsGPU[] = {
2051    false,
2052    false,
2053#if SK_SUPPORT_GPU
2054    true,
2055#if SK_ANGLE
2056    true,
2057#endif // SK_ANGLE
2058    true
2059#endif // SK_SUPPORT_GPU
2060};
2061SK_COMPILE_ASSERT(SK_ARRAY_COUNT(gDeviceTypeIsGPU) == SampleWindow::kDeviceTypeCnt,
2062                  array_size_mismatch);
2063
2064
2065static const char* trystate_str(SkOSMenu::TriState state,
2066                                const char trueStr[], const char falseStr[]) {
2067    if (SkOSMenu::kOnState == state) {
2068        return trueStr;
2069    } else if (SkOSMenu::kOffState == state) {
2070        return falseStr;
2071    }
2072    return NULL;
2073}
2074
2075void SampleWindow::updateTitle() {
2076    SkView* view = curr_view(this);
2077
2078    SkString title;
2079    if (!curr_title(this, &title)) {
2080        title.set("<unknown>");
2081    }
2082
2083    title.prepend(gDeviceTypePrefix[fDeviceType]);
2084
2085    title.prepend(" ");
2086    title.prepend(configToString(this->getBitmap().config()));
2087
2088    if (fAnimating) {
2089        title.prepend("<A> ");
2090    }
2091    if (fScale) {
2092        title.prepend("<S> ");
2093    }
2094    if (fRotate) {
2095        title.prepend("<R> ");
2096    }
2097    if (fNClip) {
2098        title.prepend("<C> ");
2099    }
2100    if (fPerspAnim) {
2101        title.prepend("<K> ");
2102    }
2103
2104    title.prepend(trystate_str(fLCDState, "LCD ", "lcd "));
2105    title.prepend(trystate_str(fAAState, "AA ", "aa "));
2106    title.prepend(trystate_str(fFilterState, "H ", "h "));
2107    title.prepend(fFlipAxis & kFlipAxis_X ? "X " : NULL);
2108    title.prepend(fFlipAxis & kFlipAxis_Y ? "Y " : NULL);
2109
2110    if (fZoomLevel) {
2111        title.prependf("{%.2f} ", SkScalarToFloat(fZoomLevel));
2112    }
2113
2114    if (fMeasureFPS) {
2115        title.appendf(" %8.3f ms", fMeasureFPS_Time / (float)FPS_REPEAT_COUNT);
2116    }
2117    if (SampleView::IsSampleView(view)) {
2118        switch (fPipeState) {
2119            case SkOSMenu::kOnState:
2120                title.prepend("<Pipe> ");
2121                break;
2122            case SkOSMenu::kMixedState:
2123                title.prepend("<Tiled Pipe> ");
2124                break;
2125
2126            default:
2127                break;
2128        }
2129        title.prepend("! ");
2130    }
2131
2132#if SK_SUPPORT_GPU
2133    if (gDeviceTypeIsGPU[fDeviceType] &&
2134        NULL != fDevManager &&
2135        fDevManager->getGrRenderTarget()->numSamples() > 0) {
2136        title.appendf(" [MSAA: %d]",
2137                       fDevManager->getGrRenderTarget()->numSamples());
2138    }
2139#endif
2140
2141    this->setTitle(title.c_str());
2142}
2143
2144void SampleWindow::onSizeChange() {
2145    this->INHERITED::onSizeChange();
2146
2147    SkView::F2BIter iter(this);
2148    SkView* view = iter.next();
2149    view->setSize(this->width(), this->height());
2150
2151    // rebuild our clippath
2152    {
2153        const SkScalar W = this->width();
2154        const SkScalar H = this->height();
2155
2156        fClipPath.reset();
2157#if 0
2158        for (SkScalar y = SK_Scalar1; y < H; y += SkIntToScalar(32)) {
2159            SkRect r;
2160            r.set(SK_Scalar1, y, SkIntToScalar(30), y + SkIntToScalar(30));
2161            for (; r.fLeft < W; r.offset(SkIntToScalar(32), 0))
2162                fClipPath.addRect(r);
2163        }
2164#else
2165        SkRect r;
2166        r.set(0, 0, W, H);
2167        fClipPath.addRect(r, SkPath::kCCW_Direction);
2168        r.set(W/4, H/4, W*3/4, H*3/4);
2169        fClipPath.addRect(r, SkPath::kCW_Direction);
2170#endif
2171    }
2172
2173    fZoomCenterX = SkScalarHalf(this->width());
2174    fZoomCenterY = SkScalarHalf(this->height());
2175
2176#ifdef SK_BUILD_FOR_ANDROID
2177    // FIXME: The first draw after a size change does not work on Android, so
2178    // we post an invalidate.
2179    this->postInvalDelay();
2180#endif
2181    this->updateTitle();    // to refresh our config
2182    fDevManager->windowSizeChanged(this);
2183}
2184
2185///////////////////////////////////////////////////////////////////////////////
2186
2187static const char is_sample_view_tag[] = "sample-is-sample-view";
2188static const char repeat_count_tag[] = "sample-set-repeat-count";
2189static const char set_use_pipe_tag[] = "sample-set-use-pipe";
2190
2191bool SampleView::IsSampleView(SkView* view) {
2192    SkEvent evt(is_sample_view_tag);
2193    return view->doQuery(&evt);
2194}
2195
2196bool SampleView::SetRepeatDraw(SkView* view, int count) {
2197    SkEvent evt(repeat_count_tag);
2198    evt.setFast32(count);
2199    return view->doEvent(evt);
2200}
2201
2202bool SampleView::SetUsePipe(SkView* view, SkOSMenu::TriState state) {
2203    SkEvent evt;
2204    evt.setS32(set_use_pipe_tag, state);
2205    return view->doEvent(evt);
2206}
2207
2208bool SampleView::onEvent(const SkEvent& evt) {
2209    if (evt.isType(repeat_count_tag)) {
2210        fRepeatCount = evt.getFast32();
2211        return true;
2212    }
2213    int32_t pipeHolder;
2214    if (evt.findS32(set_use_pipe_tag, &pipeHolder)) {
2215        fPipeState = static_cast<SkOSMenu::TriState>(pipeHolder);
2216        return true;
2217    }
2218    return this->INHERITED::onEvent(evt);
2219}
2220
2221bool SampleView::onQuery(SkEvent* evt) {
2222    if (evt->isType(is_sample_view_tag)) {
2223        return true;
2224    }
2225    return this->INHERITED::onQuery(evt);
2226}
2227
2228
2229class SimplePC : public SkGPipeController {
2230public:
2231    SimplePC(SkCanvas* target);
2232    ~SimplePC();
2233
2234    virtual void* requestBlock(size_t minRequest, size_t* actual);
2235    virtual void notifyWritten(size_t bytes);
2236
2237private:
2238    SkGPipeReader   fReader;
2239    void*           fBlock;
2240    size_t          fBlockSize;
2241    size_t          fBytesWritten;
2242    int             fAtomsWritten;
2243    SkGPipeReader::Status   fStatus;
2244
2245    size_t        fTotalWritten;
2246};
2247
2248SimplePC::SimplePC(SkCanvas* target) : fReader(target) {
2249    fBlock = NULL;
2250    fBlockSize = fBytesWritten = 0;
2251    fStatus = SkGPipeReader::kDone_Status;
2252    fTotalWritten = 0;
2253    fAtomsWritten = 0;
2254}
2255
2256SimplePC::~SimplePC() {
2257//    SkASSERT(SkGPipeReader::kDone_Status == fStatus);
2258    if (fTotalWritten) {
2259        SkDebugf("--- %d bytes %d atoms, status %d\n", fTotalWritten,
2260                 fAtomsWritten, fStatus);
2261#ifdef  PIPE_FILE
2262        //File is open in append mode
2263        FILE* f = fopen(FILE_PATH, "ab");
2264        SkASSERT(f != NULL);
2265        fwrite((const char*)fBlock + fBytesWritten, 1, bytes, f);
2266        fclose(f);
2267#endif
2268#ifdef PIPE_NET
2269        if (fAtomsWritten > 1 && fTotalWritten > 4) { //ignore done
2270            gServer.acceptConnections();
2271            gServer.writePacket(fBlock, fTotalWritten);
2272        }
2273#endif
2274#ifdef  DEBUGGER
2275        gTempDataStore.reset();
2276        gTempDataStore.append(fTotalWritten, (const char*)fBlock);
2277#endif
2278    }
2279    sk_free(fBlock);
2280}
2281
2282void* SimplePC::requestBlock(size_t minRequest, size_t* actual) {
2283    sk_free(fBlock);
2284
2285    fBlockSize = minRequest * 4;
2286    fBlock = sk_malloc_throw(fBlockSize);
2287    fBytesWritten = 0;
2288    *actual = fBlockSize;
2289    return fBlock;
2290}
2291
2292void SimplePC::notifyWritten(size_t bytes) {
2293    SkASSERT(fBytesWritten + bytes <= fBlockSize);
2294    fStatus = fReader.playback((const char*)fBlock + fBytesWritten, bytes);
2295    SkASSERT(SkGPipeReader::kError_Status != fStatus);
2296    fBytesWritten += bytes;
2297    fTotalWritten += bytes;
2298
2299    fAtomsWritten += 1;
2300}
2301
2302void SampleView::draw(SkCanvas* canvas) {
2303    if (SkOSMenu::kOffState == fPipeState) {
2304        this->INHERITED::draw(canvas);
2305    } else {
2306        SkGPipeWriter writer;
2307        SimplePC controller(canvas);
2308        TiledPipeController tc(canvas->getDevice()->accessBitmap(false),
2309                               &canvas->getTotalMatrix());
2310        SkGPipeController* pc;
2311        if (SkOSMenu::kMixedState == fPipeState) {
2312            pc = &tc;
2313        } else {
2314            pc = &controller;
2315        }
2316        uint32_t flags = SkGPipeWriter::kCrossProcess_Flag;
2317
2318        canvas = writer.startRecording(pc, flags);
2319        //Must draw before controller goes out of scope and sends data
2320        this->INHERITED::draw(canvas);
2321        //explicitly end recording to ensure writer is flushed before the memory
2322        //is freed in the deconstructor of the controller
2323        writer.endRecording();
2324    }
2325}
2326void SampleView::onDraw(SkCanvas* canvas) {
2327    this->onDrawBackground(canvas);
2328
2329    for (int i = 0; i < fRepeatCount; i++) {
2330        SkAutoCanvasRestore acr(canvas, true);
2331        this->onDrawContent(canvas);
2332    }
2333}
2334
2335void SampleView::onDrawBackground(SkCanvas* canvas) {
2336    canvas->drawColor(fBGColor);
2337}
2338
2339///////////////////////////////////////////////////////////////////////////////
2340
2341template <typename T> void SkTBSort(T array[], int count) {
2342    for (int i = 1; i < count - 1; i++) {
2343        bool didSwap = false;
2344        for (int j = count - 1; j > i; --j) {
2345            if (array[j] < array[j-1]) {
2346                T tmp(array[j-1]);
2347                array[j-1] = array[j];
2348                array[j] = tmp;
2349                didSwap = true;
2350            }
2351        }
2352        if (!didSwap) {
2353            break;
2354        }
2355    }
2356
2357    for (int k = 0; k < count - 1; k++) {
2358        SkASSERT(!(array[k+1] < array[k]));
2359    }
2360}
2361
2362#include "SkRandom.h"
2363
2364static void rand_rect(SkIRect* rect, SkRandom& rand) {
2365    int bits = 8;
2366    int shift = 32 - bits;
2367    rect->set(rand.nextU() >> shift, rand.nextU() >> shift,
2368              rand.nextU() >> shift, rand.nextU() >> shift);
2369    rect->sort();
2370}
2371
2372static void dumpRect(const SkIRect& r) {
2373    SkDebugf(" { %d, %d, %d, %d },\n",
2374             r.fLeft, r.fTop,
2375             r.fRight, r.fBottom);
2376}
2377
2378static void test_rects(const SkIRect rect[], int count) {
2379    SkRegion rgn0, rgn1;
2380
2381    for (int i = 0; i < count; i++) {
2382        rgn0.op(rect[i], SkRegion::kUnion_Op);
2383     //   dumpRect(rect[i]);
2384    }
2385    rgn1.setRects(rect, count);
2386
2387    if (rgn0 != rgn1) {
2388        SkDebugf("\n");
2389        for (int i = 0; i < count; i++) {
2390            dumpRect(rect[i]);
2391        }
2392        SkDebugf("\n");
2393    }
2394}
2395
2396static void test() {
2397    size_t i;
2398
2399    const SkIRect r0[] = {
2400        { 0, 0, 1, 1 },
2401        { 2, 2, 3, 3 },
2402    };
2403    const SkIRect r1[] = {
2404        { 0, 0, 1, 3 },
2405        { 1, 1, 2, 2 },
2406        { 2, 0, 3, 3 },
2407    };
2408    const SkIRect r2[] = {
2409        { 0, 0, 1, 2 },
2410        { 2, 1, 3, 3 },
2411        { 4, 0, 5, 1 },
2412        { 6, 0, 7, 4 },
2413    };
2414
2415    static const struct {
2416        const SkIRect* fRects;
2417        int            fCount;
2418    } gRecs[] = {
2419        { r0, SK_ARRAY_COUNT(r0) },
2420        { r1, SK_ARRAY_COUNT(r1) },
2421        { r2, SK_ARRAY_COUNT(r2) },
2422    };
2423
2424    for (i = 0; i < SK_ARRAY_COUNT(gRecs); i++) {
2425        test_rects(gRecs[i].fRects, gRecs[i].fCount);
2426    }
2427
2428    SkRandom rand;
2429    for (i = 0; i < 10000; i++) {
2430        SkRegion rgn0, rgn1;
2431
2432        const int N = 8;
2433        SkIRect rect[N];
2434        for (int j = 0; j < N; j++) {
2435            rand_rect(&rect[j], rand);
2436        }
2437        test_rects(rect, N);
2438    }
2439}
2440
2441// FIXME: this should be in a header
2442SkOSWindow* create_sk_window(void* hwnd, int argc, char** argv);
2443SkOSWindow* create_sk_window(void* hwnd, int argc, char** argv) {
2444    if (false) { // avoid bit rot, suppress warning
2445        test();
2446    }
2447    return new SampleWindow(hwnd, argc, argv, NULL);
2448}
2449
2450// FIXME: this should be in a header
2451void get_preferred_size(int* x, int* y, int* width, int* height);
2452void get_preferred_size(int* x, int* y, int* width, int* height) {
2453    *x = 10;
2454    *y = 50;
2455    *width = 640;
2456    *height = 480;
2457}
2458
2459#ifdef SK_BUILD_FOR_IOS
2460void save_args(int argc, char *argv[]) {
2461}
2462#endif
2463
2464// FIXME: this should be in a header
2465void application_init();
2466void application_init() {
2467//    setenv("ANDROID_ROOT", "../../../data", 0);
2468#ifdef SK_BUILD_FOR_MAC
2469    setenv("ANDROID_ROOT", "/android/device/data", 0);
2470#endif
2471    SkGraphics::Init();
2472    SkEvent::Init();
2473}
2474
2475// FIXME: this should be in a header
2476void application_term();
2477void application_term() {
2478    SkEvent::Term();
2479    SkGraphics::Term();
2480}
2481