SampleApp.cpp revision 796763e0b2c06a7789185322561a1135e5484688 
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 bool gShowGMBounds;
96
97static void postEventToSink(SkEvent* evt, SkEventSink* sink) {
98    evt->setTargetID(sink->getSinkID())->post();
99}
100
101///////////////////////////////////////////////////////////////////////////////
102
103static const char* skip_until(const char* str, const char* skip) {
104    if (!str) {
105        return NULL;
106    }
107    return strstr(str, skip);
108}
109
110static const char* skip_past(const char* str, const char* skip) {
111    const char* found = skip_until(str, skip);
112    if (!found) {
113        return NULL;
114    }
115    return found + strlen(skip);
116}
117
118static const char* gPrefFileName = "sampleapp_prefs.txt";
119
120static bool readTitleFromPrefs(SkString* title) {
121    SkFILEStream stream(gPrefFileName);
122    if (!stream.isValid()) {
123        return false;
124    }
125
126    int len = stream.getLength();
127    SkString data(len);
128    stream.read(data.writable_str(), len);
129    const char* s = data.c_str();
130
131    s = skip_past(s, "curr-slide-title");
132    s = skip_past(s, "=");
133    s = skip_past(s, "\"");
134    const char* stop = skip_until(s, "\"");
135    if (stop > s) {
136        title->set(s, stop - s);
137        return true;
138    }
139    return false;
140}
141
142static void writeTitleToPrefs(const char* title) {
143    SkFILEWStream stream(gPrefFileName);
144    SkString data;
145    data.printf("curr-slide-title = \"%s\"\n", title);
146    stream.write(data.c_str(), data.size());
147}
148
149///////////////////////////////////////////////////////////////////////////////
150
151class SampleWindow::DefaultDeviceManager : public SampleWindow::DeviceManager {
152public:
153
154    DefaultDeviceManager() {
155#if SK_SUPPORT_GPU
156        fCurContext = NULL;
157        fCurIntf = NULL;
158        fCurRenderTarget = NULL;
159        fMSAASampleCount = 0;
160#endif
161        fBackend = kNone_BackEndType;
162    }
163
164    virtual ~DefaultDeviceManager() {
165#if SK_SUPPORT_GPU
166        SkSafeUnref(fCurContext);
167        SkSafeUnref(fCurIntf);
168        SkSafeUnref(fCurRenderTarget);
169#endif
170    }
171
172    virtual void setUpBackend(SampleWindow* win, int msaaSampleCount) {
173        SkASSERT(kNone_BackEndType == fBackend);
174
175        fBackend = kNone_BackEndType;
176
177#if SK_SUPPORT_GPU
178        switch (win->getDeviceType()) {
179            case kRaster_DeviceType:
180                // fallthrough
181            case kPicture_DeviceType:
182                // fallthrough
183            case kGPU_DeviceType:
184                // fallthrough
185            case kNullGPU_DeviceType:
186                // all these guys use the native backend
187                fBackend = kNativeGL_BackEndType;
188                break;
189#if SK_ANGLE
190            case kANGLE_DeviceType:
191                // ANGLE is really the only odd man out
192                fBackend = kANGLE_BackEndType;
193                break;
194#endif // SK_ANGLE
195            default:
196                SkASSERT(false);
197                break;
198        }
199
200        bool result = win->attach(fBackend, msaaSampleCount);
201        if (!result) {
202            SkDebugf("Failed to initialize GL");
203            return;
204        }
205        fMSAASampleCount = msaaSampleCount;
206
207        SkASSERT(NULL == fCurIntf);
208        switch (win->getDeviceType()) {
209            case kRaster_DeviceType:
210                // fallthrough
211            case kPicture_DeviceType:
212                // fallthrough
213            case kGPU_DeviceType:
214                // all these guys use the native interface
215                fCurIntf = GrGLCreateNativeInterface();
216                break;
217#if SK_ANGLE
218            case kANGLE_DeviceType:
219                fCurIntf = GrGLCreateANGLEInterface();
220                break;
221#endif // SK_ANGLE
222            case kNullGPU_DeviceType:
223                fCurIntf = GrGLCreateNullInterface();
224                break;
225            default:
226                SkASSERT(false);
227                break;
228        }
229
230        SkASSERT(NULL == fCurContext);
231        fCurContext = GrContext::Create(kOpenGL_GrBackend, (GrBackendContext) fCurIntf);
232
233        if (NULL == fCurContext || NULL == fCurIntf) {
234            // We need some context and interface to see results
235            SkSafeUnref(fCurContext);
236            SkSafeUnref(fCurIntf);
237            SkDebugf("Failed to setup 3D");
238
239            win->detach();
240        }
241#endif // SK_SUPPORT_GPU
242        // call windowSizeChanged to create the render target
243        this->windowSizeChanged(win);
244    }
245
246    virtual void tearDownBackend(SampleWindow *win) {
247#if SK_SUPPORT_GPU
248        SkSafeUnref(fCurContext);
249        fCurContext = NULL;
250
251        SkSafeUnref(fCurIntf);
252        fCurIntf = NULL;
253
254        SkSafeUnref(fCurRenderTarget);
255        fCurRenderTarget = NULL;
256#endif
257        win->detach();
258        fBackend = kNone_BackEndType;
259    }
260
261    virtual SkCanvas* createCanvas(SampleWindow::DeviceType dType,
262                                   SampleWindow* win) {
263        switch (dType) {
264            case kRaster_DeviceType:
265                // fallthrough
266            case kPicture_DeviceType:
267                // fallthrough
268#if SK_ANGLE
269            case kANGLE_DeviceType:
270#endif
271                break;
272#if SK_SUPPORT_GPU
273            case kGPU_DeviceType:
274            case kNullGPU_DeviceType:
275                if (fCurContext) {
276                    SkAutoTUnref<SkDevice> device(new SkGpuDevice(fCurContext,
277                                                                  fCurRenderTarget));
278                    return new SkCanvas(device);
279                } else {
280                    return NULL;
281                }
282                break;
283#endif
284            default:
285                SkASSERT(false);
286                return NULL;
287        }
288        return NULL;
289    }
290
291    virtual void publishCanvas(SampleWindow::DeviceType dType,
292                               SkCanvas* canvas,
293                               SampleWindow* win) {
294#if SK_SUPPORT_GPU
295        if (fCurContext) {
296            // in case we have queued drawing calls
297            fCurContext->flush();
298
299            if (kGPU_DeviceType != dType && kNullGPU_DeviceType != dType) {
300                // need to send the raster bits to the (gpu) window
301                fCurContext->setRenderTarget(fCurRenderTarget);
302                const SkBitmap& bm = win->getBitmap();
303                fCurRenderTarget->writePixels(0, 0, bm.width(), bm.height(),
304                                             kSkia8888_PM_GrPixelConfig,
305                                             bm.getPixels(),
306                                             bm.rowBytes());
307            }
308        }
309#endif
310
311        win->present();
312    }
313
314    virtual void windowSizeChanged(SampleWindow* win) {
315#if SK_SUPPORT_GPU
316        if (fCurContext) {
317            win->attach(fBackend, fMSAASampleCount);
318
319            GrBackendRenderTargetDesc desc;
320            desc.fWidth = SkScalarRound(win->width());
321            desc.fHeight = SkScalarRound(win->height());
322            desc.fConfig = kSkia8888_PM_GrPixelConfig;
323            GR_GL_GetIntegerv(fCurIntf, GR_GL_SAMPLES, &desc.fSampleCnt);
324            GR_GL_GetIntegerv(fCurIntf, GR_GL_STENCIL_BITS, &desc.fStencilBits);
325            GrGLint buffer;
326            GR_GL_GetIntegerv(fCurIntf, GR_GL_FRAMEBUFFER_BINDING, &buffer);
327            desc.fRenderTargetHandle = buffer;
328
329            SkSafeUnref(fCurRenderTarget);
330            fCurRenderTarget = fCurContext->wrapBackendRenderTarget(desc);
331        }
332#endif
333    }
334
335    virtual GrContext* getGrContext() {
336#if SK_SUPPORT_GPU
337        return fCurContext;
338#else
339        return NULL;
340#endif
341    }
342
343    virtual GrRenderTarget* getGrRenderTarget() SK_OVERRIDE {
344#if SK_SUPPORT_GPU
345        return fCurRenderTarget;
346#else
347        return NULL;
348#endif
349    }
350
351private:
352
353#if SK_SUPPORT_GPU
354    GrContext*              fCurContext;
355    const GrGLInterface*    fCurIntf;
356    GrRenderTarget*         fCurRenderTarget;
357    int fMSAASampleCount;
358#endif
359
360    SkOSWindow::SkBackEndTypes fBackend;
361
362    typedef SampleWindow::DeviceManager INHERITED;
363};
364
365///////////////
366static const char view_inval_msg[] = "view-inval-msg";
367
368void SampleWindow::postInvalDelay() {
369    (new SkEvent(view_inval_msg, this->getSinkID()))->postDelay(1);
370}
371
372static bool isInvalEvent(const SkEvent& evt) {
373    return evt.isType(view_inval_msg);
374}
375//////////////////
376
377SkFuncViewFactory::SkFuncViewFactory(SkViewCreateFunc func)
378    : fCreateFunc(func) {
379}
380
381SkView* SkFuncViewFactory::operator() () const {
382    return (*fCreateFunc)();
383}
384
385#include "GMSampleView.h"
386
387SkGMSampleViewFactory::SkGMSampleViewFactory(GMFactoryFunc func)
388    : fFunc(func) {
389}
390
391SkView* SkGMSampleViewFactory::operator() () const {
392    return new GMSampleView(fFunc(NULL));
393}
394
395SkViewRegister* SkViewRegister::gHead;
396SkViewRegister::SkViewRegister(SkViewFactory* fact) : fFact(fact) {
397    fFact->ref();
398    fChain = gHead;
399    gHead = this;
400}
401
402SkViewRegister::SkViewRegister(SkViewCreateFunc func) {
403    fFact = new SkFuncViewFactory(func);
404    fChain = gHead;
405    gHead = this;
406}
407
408SkViewRegister::SkViewRegister(GMFactoryFunc func) {
409    fFact = new SkGMSampleViewFactory(func);
410    fChain = gHead;
411    gHead = this;
412}
413
414class AutoUnrefArray {
415public:
416    AutoUnrefArray() {}
417    ~AutoUnrefArray() {
418        int count = fObjs.count();
419        for (int i = 0; i < count; ++i) {
420            fObjs[i]->unref();
421        }
422    }
423    SkRefCnt*& push_back() { return *fObjs.append(); }
424
425private:
426    SkTDArray<SkRefCnt*> fObjs;
427};
428
429// registers GMs as Samples
430// This can't be performed during static initialization because it could be
431// run before GMRegistry has been fully built.
432static void SkGMRegistyToSampleRegistry() {
433    static bool gOnce;
434    static AutoUnrefArray fRegisters;
435
436    if (!gOnce) {
437        const skiagm::GMRegistry* gmreg = skiagm::GMRegistry::Head();
438        while (gmreg) {
439            fRegisters.push_back() = new SkViewRegister(gmreg->factory());
440            gmreg = gmreg->next();
441        }
442        gOnce = true;
443    }
444}
445
446#if 0
447#include <CoreFoundation/CoreFoundation.h>
448#include <CoreFoundation/CFURLAccess.h>
449
450static void testpdf() {
451    CFStringRef path = CFStringCreateWithCString(NULL, "/test.pdf",
452                                                 kCFStringEncodingUTF8);
453    CFURLRef url = CFURLCreateWithFileSystemPath(NULL, path,
454                                              kCFURLPOSIXPathStyle,
455                                              false);
456    CFRelease(path);
457    CGRect box = CGRectMake(0, 0, 8*72, 10*72);
458    CGContextRef cg = CGPDFContextCreateWithURL(url, &box, NULL);
459    CFRelease(url);
460
461    CGContextBeginPage(cg, &box);
462    CGRect r = CGRectMake(10, 10, 40 + 0.5, 50 + 0.5);
463    CGContextFillEllipseInRect(cg, r);
464    CGContextEndPage(cg);
465    CGContextRelease(cg);
466
467    if (false) {
468        SkBitmap bm;
469        bm.setConfig(SkBitmap::kA8_Config, 64, 64);
470        bm.allocPixels();
471        bm.eraseColor(SK_ColorTRANSPARENT);
472
473        SkCanvas canvas(bm);
474
475    }
476}
477#endif
478
479//////////////////////////////////////////////////////////////////////////////
480
481enum FlipAxisEnum {
482    kFlipAxis_X = (1 << 0),
483    kFlipAxis_Y = (1 << 1)
484};
485
486#include "SkDrawFilter.h"
487
488class FlagsDrawFilter : public SkDrawFilter {
489public:
490    FlagsDrawFilter(SkOSMenu::TriState lcd, SkOSMenu::TriState aa, SkOSMenu::TriState filter,
491                    SkOSMenu::TriState hinting) :
492        fLCDState(lcd), fAAState(aa), fFilterState(filter), fHintingState(hinting) {}
493
494    virtual bool filter(SkPaint* paint, Type t) {
495        if (kText_Type == t && SkOSMenu::kMixedState != fLCDState) {
496            paint->setLCDRenderText(SkOSMenu::kOnState == fLCDState);
497        }
498        if (SkOSMenu::kMixedState != fAAState) {
499            paint->setAntiAlias(SkOSMenu::kOnState == fAAState);
500        }
501        if (SkOSMenu::kMixedState != fFilterState) {
502            paint->setFilterBitmap(SkOSMenu::kOnState == fFilterState);
503        }
504        if (SkOSMenu::kMixedState != fHintingState) {
505            paint->setHinting(SkOSMenu::kOnState == fHintingState ?
506                              SkPaint::kNormal_Hinting :
507                              SkPaint::kSlight_Hinting);
508        }
509        return true;
510    }
511
512private:
513    SkOSMenu::TriState  fLCDState;
514    SkOSMenu::TriState  fAAState;
515    SkOSMenu::TriState  fFilterState;
516    SkOSMenu::TriState  fHintingState;
517};
518
519//////////////////////////////////////////////////////////////////////////////
520
521#define MAX_ZOOM_LEVEL  8
522#define MIN_ZOOM_LEVEL  -8
523
524static const char gCharEvtName[] = "SampleCode_Char_Event";
525static const char gKeyEvtName[] = "SampleCode_Key_Event";
526static const char gTitleEvtName[] = "SampleCode_Title_Event";
527static const char gPrefSizeEvtName[] = "SampleCode_PrefSize_Event";
528static const char gFastTextEvtName[] = "SampleCode_FastText_Event";
529static const char gUpdateWindowTitleEvtName[] = "SampleCode_UpdateWindowTitle";
530
531bool SampleCode::CharQ(const SkEvent& evt, SkUnichar* outUni) {
532    if (evt.isType(gCharEvtName, sizeof(gCharEvtName) - 1)) {
533        if (outUni) {
534            *outUni = evt.getFast32();
535        }
536        return true;
537    }
538    return false;
539}
540
541bool SampleCode::KeyQ(const SkEvent& evt, SkKey* outKey) {
542    if (evt.isType(gKeyEvtName, sizeof(gKeyEvtName) - 1)) {
543        if (outKey) {
544            *outKey = (SkKey)evt.getFast32();
545        }
546        return true;
547    }
548    return false;
549}
550
551bool SampleCode::TitleQ(const SkEvent& evt) {
552    return evt.isType(gTitleEvtName, sizeof(gTitleEvtName) - 1);
553}
554
555void SampleCode::TitleR(SkEvent* evt, const char title[]) {
556    SkASSERT(evt && TitleQ(*evt));
557    evt->setString(gTitleEvtName, title);
558}
559
560bool SampleCode::RequestTitle(SkView* view, SkString* title) {
561    SkEvent evt(gTitleEvtName);
562    if (view->doQuery(&evt)) {
563        title->set(evt.findString(gTitleEvtName));
564        return true;
565    }
566    return false;
567}
568
569bool SampleCode::PrefSizeQ(const SkEvent& evt) {
570    return evt.isType(gPrefSizeEvtName, sizeof(gPrefSizeEvtName) - 1);
571}
572
573void SampleCode::PrefSizeR(SkEvent* evt, SkScalar width, SkScalar height) {
574    SkASSERT(evt && PrefSizeQ(*evt));
575    SkScalar size[2];
576    size[0] = width;
577    size[1] = height;
578    evt->setScalars(gPrefSizeEvtName, 2, size);
579}
580
581bool SampleCode::FastTextQ(const SkEvent& evt) {
582    return evt.isType(gFastTextEvtName, sizeof(gFastTextEvtName) - 1);
583}
584
585///////////////////////////////////////////////////////////////////////////////
586
587static SkMSec gAnimTime;
588static SkMSec gAnimTimePrev;
589
590SkMSec SampleCode::GetAnimTime() { return gAnimTime; }
591SkMSec SampleCode::GetAnimTimeDelta() { return gAnimTime - gAnimTimePrev; }
592SkScalar SampleCode::GetAnimSecondsDelta() {
593    return SkDoubleToScalar(GetAnimTimeDelta() / 1000.0);
594}
595
596SkScalar SampleCode::GetAnimScalar(SkScalar speed, SkScalar period) {
597    // since gAnimTime can be up to 32 bits, we can't convert it to a float
598    // or we'll lose the low bits. Hence we use doubles for the intermediate
599    // calculations
600    double seconds = (double)gAnimTime / 1000.0;
601    double value = SkScalarToDouble(speed) * seconds;
602    if (period) {
603        value = ::fmod(value, SkScalarToDouble(period));
604    }
605    return SkDoubleToScalar(value);
606}
607
608SkScalar SampleCode::GetAnimSinScalar(SkScalar amplitude,
609                                      SkScalar periodInSec,
610                                      SkScalar phaseInSec) {
611    if (!periodInSec) {
612        return 0;
613    }
614    double t = (double)gAnimTime / 1000.0 + phaseInSec;
615    t *= SkScalarToFloat(2 * SK_ScalarPI) / periodInSec;
616    amplitude = SK_ScalarHalf * amplitude;
617    return SkScalarMul(amplitude, SkDoubleToScalar(sin(t))) + amplitude;
618}
619
620GrContext* SampleCode::GetGr() {
621    return gSampleWindow ? gSampleWindow->getGrContext() : NULL;
622}
623
624// some GMs rely on having a skiagm::GetGr function defined
625namespace skiagm {
626    // FIXME: this should be moved into a header
627    GrContext* GetGr();
628    GrContext* GetGr() { return SampleCode::GetGr(); }
629}
630
631//////////////////////////////////////////////////////////////////////////////
632
633static SkView* curr_view(SkWindow* wind) {
634    SkView::F2BIter iter(wind);
635    return iter.next();
636}
637
638static bool curr_title(SkWindow* wind, SkString* title) {
639    SkView* view = curr_view(wind);
640    if (view) {
641        SkEvent evt(gTitleEvtName);
642        if (view->doQuery(&evt)) {
643            title->set(evt.findString(gTitleEvtName));
644            return true;
645        }
646    }
647    return false;
648}
649
650void SampleWindow::setZoomCenter(float x, float y)
651{
652    fZoomCenterX = SkFloatToScalar(x);
653    fZoomCenterY = SkFloatToScalar(y);
654}
655
656bool SampleWindow::zoomIn()
657{
658    // Arbitrarily decided
659    if (fFatBitsScale == 25) return false;
660    fFatBitsScale++;
661    this->inval(NULL);
662    return true;
663}
664
665bool SampleWindow::zoomOut()
666{
667    if (fFatBitsScale == 1) return false;
668    fFatBitsScale--;
669    this->inval(NULL);
670    return true;
671}
672
673void SampleWindow::updatePointer(int x, int y)
674{
675    fMouseX = x;
676    fMouseY = y;
677    if (fShowZoomer) {
678        this->inval(NULL);
679    }
680}
681
682static inline SampleWindow::DeviceType cycle_devicetype(SampleWindow::DeviceType ct) {
683    static const SampleWindow::DeviceType gCT[] = {
684        SampleWindow::kPicture_DeviceType,
685#if SK_SUPPORT_GPU
686        SampleWindow::kGPU_DeviceType,
687#if SK_ANGLE
688        SampleWindow::kANGLE_DeviceType,
689#endif // SK_ANGLE
690        SampleWindow::kRaster_DeviceType, // skip the null gpu device in normal cycling
691#endif // SK_SUPPORT_GPU
692        SampleWindow::kRaster_DeviceType
693    };
694    SK_COMPILE_ASSERT(SK_ARRAY_COUNT(gCT) == SampleWindow::kDeviceTypeCnt, array_size_mismatch);
695    return gCT[ct];
696}
697
698static void usage(const char * argv0) {
699    SkDebugf("%s [--slide sampleName] [-i resourcePath] [--msaa sampleCount] [--pictureDir dirPath] [--picture path]\n", argv0);
700    SkDebugf("    sampleName: sample at which to start.\n");
701    SkDebugf("    resourcePath: directory that stores image resources.\n");
702    SkDebugf("    msaa: request multisampling with the given sample count.\n");
703    SkDebugf("    dirPath: path to directory skia pictures are read from\n");
704    SkDebugf("    path: path to skia picture\n");
705}
706
707SampleWindow::SampleWindow(void* hwnd, int argc, char** argv, DeviceManager* devManager)
708    : INHERITED(hwnd)
709    , fDevManager(NULL) {
710
711    this->registerPictFileSamples(argv, argc);
712    this->registerPictFileSample(argv, argc);
713    SkGMRegistyToSampleRegistry();
714    {
715        const SkViewRegister* reg = SkViewRegister::Head();
716        while (reg) {
717            *fSamples.append() = reg->factory();
718            reg = reg->next();
719        }
720    }
721
722    const char* resourcePath = NULL;
723    fCurrIndex = -1;
724    fMSAASampleCount = 0;
725
726    const char* const commandName = argv[0];
727    char* const* stop = argv + argc;
728    for (++argv; argv < stop; ++argv) {
729        if (strcmp(*argv, "-i") == 0) {
730            argv++;
731            if (argv < stop && **argv) {
732                resourcePath = *argv;
733            }
734        } else if (strcmp(*argv, "--slide") == 0) {
735            argv++;
736            if (argv < stop && **argv) {
737                fCurrIndex = findByTitle(*argv);
738                if (fCurrIndex < 0) {
739                    fprintf(stderr, "Unknown sample \"%s\"\n", *argv);
740                    listTitles();
741                }
742            }
743        } else if (strcmp(*argv, "--msaa") == 0) {
744            ++argv;
745            if (argv < stop && **argv) {
746                fMSAASampleCount = atoi(*argv);
747            }
748        } else if (strcmp(*argv, "--list") == 0) {
749            listTitles();
750        }
751        else {
752            usage(commandName);
753        }
754    }
755
756    if (fCurrIndex < 0) {
757        SkString title;
758        if (readTitleFromPrefs(&title)) {
759            fCurrIndex = findByTitle(title.c_str());
760        }
761    }
762
763    if (fCurrIndex < 0) {
764        fCurrIndex = 0;
765    }
766
767    gSampleWindow = this;
768
769#ifdef  PIPE_FILE
770    //Clear existing file or create file if it doesn't exist
771    FILE* f = fopen(FILE_PATH, "wb");
772    fclose(f);
773#endif
774
775    fPicture = NULL;
776
777    fDeviceType = kRaster_DeviceType;
778
779#if DEFAULT_TO_GPU
780    fDeviceType = kGPU_DeviceType;
781#endif
782#if SK_ANGLE && DEFAULT_TO_ANGLE
783    fDeviceType = kANGLE_DeviceType;
784#endif
785
786    fUseClip = false;
787    fNClip = false;
788    fAnimating = false;
789    fRotate = false;
790    fPerspAnim = false;
791    fPerspAnimTime = 0;
792    fScale = false;
793    fRequestGrabImage = false;
794    fPipeState = SkOSMenu::kOffState;
795    fTilingState = SkOSMenu::kOffState;
796    fTileCount.set(1, 1);
797    fMeasureFPS = false;
798    fLCDState = SkOSMenu::kMixedState;
799    fAAState = SkOSMenu::kMixedState;
800    fFilterState = SkOSMenu::kMixedState;
801    fHintingState = SkOSMenu::kMixedState;
802    fFlipAxis = 0;
803    fScrollTestX = fScrollTestY = 0;
804
805    fMouseX = fMouseY = 0;
806    fFatBitsScale = 8;
807    fTypeface = SkTypeface::CreateFromTypeface(NULL, SkTypeface::kBold);
808    fShowZoomer = false;
809
810    fZoomLevel = 0;
811    fZoomScale = SK_Scalar1;
812
813    fMagnify = false;
814    fDebugger = false;
815
816    fSaveToPdf = false;
817    fPdfCanvas = NULL;
818
819    fTransitionNext = 6;
820    fTransitionPrev = 2;
821
822    int sinkID = this->getSinkID();
823    fAppMenu = new SkOSMenu;
824    fAppMenu->setTitle("Global Settings");
825    int itemID;
826
827    itemID =fAppMenu->appendList("Device Type", "Device Type", sinkID, 0,
828                                "Raster", "Picture", "OpenGL",
829#if SK_ANGLE
830                                "ANGLE",
831#endif
832                                NULL);
833    fAppMenu->assignKeyEquivalentToItem(itemID, 'd');
834    itemID = fAppMenu->appendTriState("AA", "AA", sinkID, fAAState);
835    fAppMenu->assignKeyEquivalentToItem(itemID, 'b');
836    itemID = fAppMenu->appendTriState("LCD", "LCD", sinkID, fLCDState);
837    fAppMenu->assignKeyEquivalentToItem(itemID, 'l');
838    itemID = fAppMenu->appendTriState("Filter", "Filter", sinkID, fFilterState);
839    fAppMenu->assignKeyEquivalentToItem(itemID, 'n');
840    itemID = fAppMenu->appendTriState("Hinting", "Hinting", sinkID, fHintingState);
841    fAppMenu->assignKeyEquivalentToItem(itemID, 'h');
842
843    fUsePipeMenuItemID = fAppMenu->appendTriState("Pipe", "Pipe" , sinkID,
844                                                  fPipeState);
845    fAppMenu->assignKeyEquivalentToItem(fUsePipeMenuItemID, 'P');
846
847    itemID = fAppMenu->appendTriState("Tiling", "Tiling", sinkID, fTilingState);
848    fAppMenu->assignKeyEquivalentToItem(itemID, 't');
849
850#ifdef DEBUGGER
851    itemID = fAppMenu->appendSwitch("Debugger", "Debugger", sinkID, fDebugger);
852    fAppMenu->assignKeyEquivalentToItem(itemID, 'q');
853#endif
854    itemID = fAppMenu->appendSwitch("Slide Show", "Slide Show" , sinkID, false);
855    fAppMenu->assignKeyEquivalentToItem(itemID, 'a');
856    itemID = fAppMenu->appendSwitch("Clip", "Clip" , sinkID, fUseClip);
857    fAppMenu->assignKeyEquivalentToItem(itemID, 'c');
858    itemID = fAppMenu->appendSwitch("Flip X", "Flip X" , sinkID, false);
859    fAppMenu->assignKeyEquivalentToItem(itemID, 'x');
860    itemID = fAppMenu->appendSwitch("Flip Y", "Flip Y" , sinkID, false);
861    fAppMenu->assignKeyEquivalentToItem(itemID, 'y');
862    itemID = fAppMenu->appendSwitch("Zoomer", "Zoomer" , sinkID, fShowZoomer);
863    fAppMenu->assignKeyEquivalentToItem(itemID, 'z');
864    itemID = fAppMenu->appendSwitch("Magnify", "Magnify" , sinkID, fMagnify);
865    fAppMenu->assignKeyEquivalentToItem(itemID, 'm');
866    itemID =fAppMenu->appendList("Transition-Next", "Transition-Next", sinkID,
867                                fTransitionNext, "Up", "Up and Right", "Right",
868                                "Down and Right", "Down", "Down and Left",
869                                "Left", "Up and Left", NULL);
870    fAppMenu->assignKeyEquivalentToItem(itemID, 'j');
871    itemID =fAppMenu->appendList("Transition-Prev", "Transition-Prev", sinkID,
872                                fTransitionPrev, "Up", "Up and Right", "Right",
873                                "Down and Right", "Down", "Down and Left",
874                                "Left", "Up and Left", NULL);
875    fAppMenu->assignKeyEquivalentToItem(itemID, 'k');
876    itemID = fAppMenu->appendAction("Save to PDF", sinkID);
877    fAppMenu->assignKeyEquivalentToItem(itemID, 'e');
878
879    this->addMenu(fAppMenu);
880    fSlideMenu = new SkOSMenu;
881    this->addMenu(fSlideMenu);
882
883//    this->setConfig(SkBitmap::kRGB_565_Config);
884    this->setConfig(SkBitmap::kARGB_8888_Config);
885    this->setVisibleP(true);
886    this->setClipToBounds(false);
887
888    skiagm::GM::SetResourcePath(resourcePath);
889
890    this->loadView((*fSamples[fCurrIndex])());
891
892    fPDFData = NULL;
893
894    if (NULL == devManager) {
895        fDevManager = new DefaultDeviceManager();
896    } else {
897        devManager->ref();
898        fDevManager = devManager;
899    }
900    fDevManager->setUpBackend(this, fMSAASampleCount);
901
902    // If another constructor set our dimensions, ensure that our
903    // onSizeChange gets called.
904    if (this->height() && this->width()) {
905        this->onSizeChange();
906    }
907
908    // can't call this synchronously, since it may require a subclass to
909    // to implement, or the caller may need us to have returned from the
910    // constructor first. Hence we post an event to ourselves.
911//    this->updateTitle();
912    postEventToSink(new SkEvent(gUpdateWindowTitleEvtName), this);
913}
914
915SampleWindow::~SampleWindow() {
916    delete fPicture;
917    delete fPdfCanvas;
918    fTypeface->unref();
919
920    SkSafeUnref(fDevManager);
921}
922
923static void make_filepath(SkString* path, const char* dir, const SkString& name) {
924    size_t len = strlen(dir);
925    path->set(dir);
926    if (len > 0 && dir[len - 1] != '/') {
927        path->append("/");
928    }
929    path->append(name);
930}
931
932void SampleWindow::registerPictFileSample(char** argv, int argc) {
933    const char* pict = NULL;
934
935    for (int i = 0; i < argc; ++i) {
936        if (!strcmp(argv[i], "--picture")) {
937            i += 1;
938            if (i < argc) {
939                pict = argv[i];
940                break;
941            }
942        }
943    }
944    if (pict) {
945        SkString path(pict);
946        *fSamples.append() = new PictFileFactory(path);
947    }
948}
949
950void SampleWindow::registerPictFileSamples(char** argv, int argc) {
951    const char* pictDir = NULL;
952
953    for (int i = 0; i < argc; ++i) {
954        if (!strcmp(argv[i], "--pictureDir")) {
955            i += 1;
956            if (i < argc) {
957                pictDir = argv[i];
958                break;
959            }
960        }
961    }
962    if (pictDir) {
963        SkOSFile::Iter iter(pictDir, "skp");
964        SkString filename;
965        while (iter.next(&filename)) {
966            SkString path;
967            make_filepath(&path, pictDir, filename);
968            *fSamples.append() = new PictFileFactory(path);
969        }
970    }
971}
972
973int SampleWindow::findByTitle(const char title[]) {
974    int i, count = fSamples.count();
975    for (i = 0; i < count; i++) {
976        if (getSampleTitle(i).equals(title)) {
977            return i;
978        }
979    }
980    return -1;
981}
982
983void SampleWindow::listTitles() {
984    int count = fSamples.count();
985    SkDebugf("All Slides:\n");
986    for (int i = 0; i < count; i++) {
987        SkDebugf("    %s\n", getSampleTitle(i).c_str());
988    }
989}
990
991static SkBitmap capture_bitmap(SkCanvas* canvas) {
992    SkBitmap bm;
993    const SkBitmap& src = canvas->getDevice()->accessBitmap(false);
994    src.copyTo(&bm, src.config());
995    return bm;
996}
997
998static bool bitmap_diff(SkCanvas* canvas, const SkBitmap& orig,
999                        SkBitmap* diff) {
1000    const SkBitmap& src = canvas->getDevice()->accessBitmap(false);
1001
1002    SkAutoLockPixels alp0(src);
1003    SkAutoLockPixels alp1(orig);
1004    for (int y = 0; y < src.height(); y++) {
1005        const void* srcP = src.getAddr(0, y);
1006        const void* origP = orig.getAddr(0, y);
1007        size_t bytes = src.width() * src.bytesPerPixel();
1008        if (memcmp(srcP, origP, bytes)) {
1009            SkDebugf("---------- difference on line %d\n", y);
1010            return true;
1011        }
1012    }
1013    return false;
1014}
1015
1016static void drawText(SkCanvas* canvas, SkString string, SkScalar left, SkScalar top, SkPaint& paint)
1017{
1018    SkColor desiredColor = paint.getColor();
1019    paint.setColor(SK_ColorWHITE);
1020    const char* c_str = string.c_str();
1021    size_t size = string.size();
1022    SkRect bounds;
1023    paint.measureText(c_str, size, &bounds);
1024    bounds.offset(left, top);
1025    SkScalar inset = SkIntToScalar(-2);
1026    bounds.inset(inset, inset);
1027    canvas->drawRect(bounds, paint);
1028    if (desiredColor != SK_ColorBLACK) {
1029        paint.setColor(SK_ColorBLACK);
1030        canvas->drawText(c_str, size, left + SK_Scalar1, top + SK_Scalar1, paint);
1031    }
1032    paint.setColor(desiredColor);
1033    canvas->drawText(c_str, size, left, top, paint);
1034}
1035
1036#define XCLIP_N  8
1037#define YCLIP_N  8
1038
1039void SampleWindow::draw(SkCanvas* canvas) {
1040    // update the animation time
1041    if (!gAnimTimePrev && !gAnimTime) {
1042        // first time make delta be 0
1043        gAnimTime = SkTime::GetMSecs();
1044        gAnimTimePrev = gAnimTime;
1045    } else {
1046        gAnimTimePrev = gAnimTime;
1047        gAnimTime = SkTime::GetMSecs();
1048    }
1049
1050    if (fGesture.isActive()) {
1051        this->updateMatrix();
1052    }
1053
1054    if (fMeasureFPS) {
1055        fMeasureFPS_Time = 0;
1056    }
1057
1058    if (fNClip) {
1059        this->INHERITED::draw(canvas);
1060        SkBitmap orig = capture_bitmap(canvas);
1061
1062        const SkScalar w = this->width();
1063        const SkScalar h = this->height();
1064        const SkScalar cw = w / XCLIP_N;
1065        const SkScalar ch = h / YCLIP_N;
1066        for (int y = 0; y < YCLIP_N; y++) {
1067            SkRect r;
1068            r.fTop = y * ch;
1069            r.fBottom = (y + 1) * ch;
1070            if (y == YCLIP_N - 1) {
1071                r.fBottom = h;
1072            }
1073            for (int x = 0; x < XCLIP_N; x++) {
1074                SkAutoCanvasRestore acr(canvas, true);
1075                r.fLeft = x * cw;
1076                r.fRight = (x + 1) * cw;
1077                if (x == XCLIP_N - 1) {
1078                    r.fRight = w;
1079                }
1080                canvas->clipRect(r);
1081                this->INHERITED::draw(canvas);
1082            }
1083        }
1084
1085        SkBitmap diff;
1086        if (bitmap_diff(canvas, orig, &diff)) {
1087        }
1088    } else {
1089        const SkScalar cw = SkScalarDiv(this->width(), SkIntToScalar(fTileCount.width()));
1090        const SkScalar ch = SkScalarDiv(this->height(), SkIntToScalar(fTileCount.height()));
1091
1092        for (int y = 0; y < fTileCount.height(); ++y) {
1093            for (int x = 0; x < fTileCount.width(); ++x) {
1094                SkAutoCanvasRestore acr(canvas, true);
1095                canvas->clipRect(SkRect::MakeXYWH(x * cw, y * ch, cw, ch));
1096                this->INHERITED::draw(canvas);
1097            }
1098        }
1099
1100        if (!fTileCount.equals(1, 1)) {
1101            SkPaint paint;
1102            paint.setColor(0x60FF00FF);
1103            paint.setStyle(SkPaint::kStroke_Style);
1104            for (int y = 0; y < fTileCount.height(); ++y) {
1105                for (int x = 0; x < fTileCount.width(); ++x) {
1106                    canvas->drawRect(SkRect::MakeXYWH(x * cw, y * ch, cw, ch), paint);
1107                }
1108            }
1109        }
1110    }
1111    if (fShowZoomer && !fSaveToPdf) {
1112        showZoomer(canvas);
1113    }
1114    if (fMagnify && !fSaveToPdf) {
1115        magnify(canvas);
1116    }
1117
1118    if (fMeasureFPS && fMeasureFPS_Time) {
1119        this->updateTitle();
1120        this->postInvalDelay();
1121    }
1122
1123    // do this last
1124    fDevManager->publishCanvas(fDeviceType, canvas, this);
1125}
1126
1127static float clipW = 200;
1128static float clipH = 200;
1129void SampleWindow::magnify(SkCanvas* canvas) {
1130    SkRect r;
1131    int count = canvas->save();
1132
1133    SkMatrix m = canvas->getTotalMatrix();
1134    if (!m.invert(&m)) {
1135        return;
1136    }
1137    SkPoint offset, center;
1138    SkScalar mouseX = fMouseX * SK_Scalar1;
1139    SkScalar mouseY = fMouseY * SK_Scalar1;
1140    m.mapXY(mouseX - clipW/2, mouseY - clipH/2, &offset);
1141    m.mapXY(mouseX, mouseY, &center);
1142
1143    r.set(0, 0, clipW * m.getScaleX(), clipH * m.getScaleX());
1144    r.offset(offset.fX, offset.fY);
1145
1146    SkPaint paint;
1147    paint.setColor(0xFF66AAEE);
1148    paint.setStyle(SkPaint::kStroke_Style);
1149    paint.setStrokeWidth(10.f * m.getScaleX());
1150    //lense offset
1151    //canvas->translate(0, -250);
1152    canvas->drawRect(r, paint);
1153    canvas->clipRect(r);
1154
1155    m = canvas->getTotalMatrix();
1156    m.setTranslate(-center.fX, -center.fY);
1157    m.postScale(0.5f * fFatBitsScale, 0.5f * fFatBitsScale);
1158    m.postTranslate(center.fX, center.fY);
1159    canvas->concat(m);
1160
1161    this->INHERITED::draw(canvas);
1162
1163    canvas->restoreToCount(count);
1164}
1165
1166void SampleWindow::showZoomer(SkCanvas* canvas) {
1167        int count = canvas->save();
1168        canvas->resetMatrix();
1169        // Ensure the mouse position is on screen.
1170        int width = SkScalarRound(this->width());
1171        int height = SkScalarRound(this->height());
1172        if (fMouseX >= width) fMouseX = width - 1;
1173        else if (fMouseX < 0) fMouseX = 0;
1174        if (fMouseY >= height) fMouseY = height - 1;
1175        else if (fMouseY < 0) fMouseY = 0;
1176
1177        SkBitmap bitmap = capture_bitmap(canvas);
1178        bitmap.lockPixels();
1179
1180        // Find the size of the zoomed in view, forced to be odd, so the examined pixel is in the middle.
1181        int zoomedWidth = (width >> 1) | 1;
1182        int zoomedHeight = (height >> 1) | 1;
1183        SkIRect src;
1184        src.set(0, 0, zoomedWidth / fFatBitsScale, zoomedHeight / fFatBitsScale);
1185        src.offset(fMouseX - (src.width()>>1), fMouseY - (src.height()>>1));
1186        SkRect dest;
1187        dest.set(0, 0, SkIntToScalar(zoomedWidth), SkIntToScalar(zoomedHeight));
1188        dest.offset(SkIntToScalar(width - zoomedWidth), SkIntToScalar(height - zoomedHeight));
1189        SkPaint paint;
1190        // Clear the background behind our zoomed in view
1191        paint.setColor(SK_ColorWHITE);
1192        canvas->drawRect(dest, paint);
1193        canvas->drawBitmapRect(bitmap, &src, dest);
1194        paint.setColor(SK_ColorBLACK);
1195        paint.setStyle(SkPaint::kStroke_Style);
1196        // Draw a border around the pixel in the middle
1197        SkRect originalPixel;
1198        originalPixel.set(SkIntToScalar(fMouseX), SkIntToScalar(fMouseY), SkIntToScalar(fMouseX + 1), SkIntToScalar(fMouseY + 1));
1199        SkMatrix matrix;
1200        SkRect scalarSrc;
1201        scalarSrc.set(src);
1202        SkColor color = bitmap.getColor(fMouseX, fMouseY);
1203        if (matrix.setRectToRect(scalarSrc, dest, SkMatrix::kFill_ScaleToFit)) {
1204            SkRect pixel;
1205            matrix.mapRect(&pixel, originalPixel);
1206            // TODO Perhaps measure the values and make the outline white if it's "dark"
1207            if (color == SK_ColorBLACK) {
1208                paint.setColor(SK_ColorWHITE);
1209            }
1210            canvas->drawRect(pixel, paint);
1211        }
1212        paint.setColor(SK_ColorBLACK);
1213        // Draw a border around the destination rectangle
1214        canvas->drawRect(dest, paint);
1215        paint.setStyle(SkPaint::kStrokeAndFill_Style);
1216        // Identify the pixel and its color on screen
1217        paint.setTypeface(fTypeface);
1218        paint.setAntiAlias(true);
1219        SkScalar lineHeight = paint.getFontMetrics(NULL);
1220        SkString string;
1221        string.appendf("(%i, %i)", fMouseX, fMouseY);
1222        SkScalar left = dest.fLeft + SkIntToScalar(3);
1223        SkScalar i = SK_Scalar1;
1224        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1225        // Alpha
1226        i += SK_Scalar1;
1227        string.reset();
1228        string.appendf("A: %X", SkColorGetA(color));
1229        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1230        // Red
1231        i += SK_Scalar1;
1232        string.reset();
1233        string.appendf("R: %X", SkColorGetR(color));
1234        paint.setColor(SK_ColorRED);
1235        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1236        // Green
1237        i += SK_Scalar1;
1238        string.reset();
1239        string.appendf("G: %X", SkColorGetG(color));
1240        paint.setColor(SK_ColorGREEN);
1241        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1242        // Blue
1243        i += SK_Scalar1;
1244        string.reset();
1245        string.appendf("B: %X", SkColorGetB(color));
1246        paint.setColor(SK_ColorBLUE);
1247        drawText(canvas, string, left, SkScalarMulAdd(lineHeight, i, dest.fTop), paint);
1248        canvas->restoreToCount(count);
1249}
1250
1251void SampleWindow::onDraw(SkCanvas* canvas) {
1252}
1253
1254#include "SkColorPriv.h"
1255
1256#if 0 // UNUSED
1257static void reverseRedAndBlue(const SkBitmap& bm) {
1258    SkASSERT(bm.config() == SkBitmap::kARGB_8888_Config);
1259    uint8_t* p = (uint8_t*)bm.getPixels();
1260    uint8_t* stop = p + bm.getSize();
1261    while (p < stop) {
1262        // swap red/blue (to go from ARGB(int) to RGBA(memory) and premultiply
1263        unsigned scale = SkAlpha255To256(p[3]);
1264        unsigned r = p[2];
1265        unsigned b = p[0];
1266        p[0] = SkAlphaMul(r, scale);
1267        p[1] = SkAlphaMul(p[1], scale);
1268        p[2] = SkAlphaMul(b, scale);
1269        p += 4;
1270    }
1271}
1272#endif
1273
1274void SampleWindow::saveToPdf()
1275{
1276    fSaveToPdf = true;
1277    this->inval(NULL);
1278}
1279
1280SkCanvas* SampleWindow::beforeChildren(SkCanvas* canvas) {
1281    if (fSaveToPdf) {
1282        const SkBitmap& bmp = canvas->getDevice()->accessBitmap(false);
1283        SkISize size = SkISize::Make(bmp.width(), bmp.height());
1284        SkPDFDevice* pdfDevice = new SkPDFDevice(size, size,
1285                canvas->getTotalMatrix());
1286        fPdfCanvas = new SkCanvas(pdfDevice);
1287        pdfDevice->unref();
1288        canvas = fPdfCanvas;
1289    } else {
1290        switch (fDeviceType) {
1291            case kRaster_DeviceType:
1292                // fallthrough
1293#if SK_SUPPORT_GPU
1294            case kGPU_DeviceType:
1295                // fallthrough
1296#if SK_ANGLE
1297            case kANGLE_DeviceType:
1298#endif // SK_ANGLE
1299#endif // SK_SUPPORT_GPU
1300                canvas = this->INHERITED::beforeChildren(canvas);
1301                break;
1302            case kPicture_DeviceType:
1303                fPicture = new SkPicture;
1304                canvas = fPicture->beginRecording(9999, 9999);
1305                break;
1306#if SK_SUPPORT_GPU
1307            case kNullGPU_DeviceType:
1308                break;
1309#endif
1310            default:
1311                SkASSERT(false);
1312                break;
1313        }
1314    }
1315
1316    if (fUseClip) {
1317        canvas->drawColor(0xFFFF88FF);
1318        canvas->clipPath(fClipPath, SkRegion::kIntersect_Op, true);
1319    }
1320
1321    return canvas;
1322}
1323
1324static void paint_rgn(const SkBitmap& bm, const SkIRect& r,
1325                      const SkRegion& rgn) {
1326    SkCanvas    canvas(bm);
1327    SkRegion    inval(rgn);
1328
1329    inval.translate(r.fLeft, r.fTop);
1330    canvas.clipRegion(inval);
1331    canvas.drawColor(0xFFFF8080);
1332}
1333#include "SkData.h"
1334void SampleWindow::afterChildren(SkCanvas* orig) {
1335    if (fSaveToPdf) {
1336        fSaveToPdf = false;
1337        if (fShowZoomer) {
1338            showZoomer(fPdfCanvas);
1339        }
1340        SkString name;
1341        name.printf("%s.pdf", this->getTitle());
1342        SkPDFDocument doc;
1343        SkPDFDevice* device = static_cast<SkPDFDevice*>(fPdfCanvas->getDevice());
1344        doc.appendPage(device);
1345#ifdef SK_BUILD_FOR_ANDROID
1346        name.prepend("/sdcard/");
1347#endif
1348
1349#ifdef SK_BUILD_FOR_IOS
1350        SkDynamicMemoryWStream mstream;
1351        doc.emitPDF(&mstream);
1352        fPDFData = mstream.copyToData();
1353#endif
1354        SkFILEWStream stream(name.c_str());
1355        if (stream.isValid()) {
1356            doc.emitPDF(&stream);
1357            const char* desc = "File saved from Skia SampleApp";
1358            this->onPDFSaved(this->getTitle(), desc, name.c_str());
1359        }
1360
1361        delete fPdfCanvas;
1362        fPdfCanvas = NULL;
1363
1364        // We took over the draw calls in order to create the PDF, so we need
1365        // to redraw.
1366        this->inval(NULL);
1367        return;
1368    }
1369
1370    if (fRequestGrabImage) {
1371        fRequestGrabImage = false;
1372
1373        SkDevice* device = orig->getDevice();
1374        SkBitmap bmp;
1375        if (device->accessBitmap(false).copyTo(&bmp, SkBitmap::kARGB_8888_Config)) {
1376            static int gSampleGrabCounter;
1377            SkString name;
1378            name.printf("sample_grab_%d.png", gSampleGrabCounter++);
1379            SkImageEncoder::EncodeFile(name.c_str(), bmp,
1380                                       SkImageEncoder::kPNG_Type, 100);
1381        }
1382    }
1383
1384    if (kPicture_DeviceType == fDeviceType) {
1385        if (true) {
1386            SkPicture* pict = new SkPicture(*fPicture);
1387            fPicture->unref();
1388            this->installDrawFilter(orig);
1389            orig->drawPicture(*pict);
1390            pict->unref();
1391        } else if (true) {
1392            SkDynamicMemoryWStream ostream;
1393            fPicture->serialize(&ostream);
1394            fPicture->unref();
1395
1396            SkAutoDataUnref data(ostream.copyToData());
1397            SkMemoryStream istream(data->data(), data->size());
1398            SkPicture pict(&istream);
1399            orig->drawPicture(pict);
1400        } else {
1401            fPicture->draw(orig);
1402            fPicture->unref();
1403        }
1404        fPicture = NULL;
1405    }
1406
1407    // Do this after presentGL and other finishing, rather than in afterChild
1408    if (fMeasureFPS && fMeasureFPS_StartTime) {
1409        fMeasureFPS_Time += SkTime::GetMSecs() - fMeasureFPS_StartTime;
1410    }
1411
1412    //    if ((fScrollTestX | fScrollTestY) != 0)
1413    if (false) {
1414        const SkBitmap& bm = orig->getDevice()->accessBitmap(true);
1415        int dx = fScrollTestX * 7;
1416        int dy = fScrollTestY * 7;
1417        SkIRect r;
1418        SkRegion inval;
1419
1420        r.set(50, 50, 50+100, 50+100);
1421        bm.scrollRect(&r, dx, dy, &inval);
1422        paint_rgn(bm, r, inval);
1423    }
1424#ifdef DEBUGGER
1425    SkView* curr = curr_view(this);
1426    if (fDebugger && !is_debugger(curr) && !is_transition(curr) && !is_overview(curr)) {
1427        //Stop Pipe when fDebugger is active
1428        if (fPipeState != SkOSMenu::kOffState) {
1429            fPipeState = SkOSMenu::kOffState;
1430            (void)SampleView::SetUsePipe(curr, fPipeState);
1431            fAppMenu->getItemByID(fUsePipeMenuItemID)->setTriState(fPipeState);
1432            this->onUpdateMenu(fAppMenu);
1433        }
1434
1435        //Reset any transformations
1436        fGesture.stop();
1437        fGesture.reset();
1438
1439        this->loadView(create_debugger(gTempDataStore.begin(),
1440                                       gTempDataStore.count()));
1441    }
1442#endif
1443}
1444
1445void SampleWindow::beforeChild(SkView* child, SkCanvas* canvas) {
1446    if (fScale) {
1447        SkScalar scale = SK_Scalar1 * 7 / 10;
1448        SkScalar cx = this->width() / 2;
1449        SkScalar cy = this->height() / 2;
1450        canvas->translate(cx, cy);
1451        canvas->scale(scale, scale);
1452        canvas->translate(-cx, -cy);
1453    }
1454    if (fRotate) {
1455        SkScalar cx = this->width() / 2;
1456        SkScalar cy = this->height() / 2;
1457        canvas->translate(cx, cy);
1458        canvas->rotate(SkIntToScalar(30));
1459        canvas->translate(-cx, -cy);
1460    }
1461    if (fPerspAnim) {
1462        fPerspAnimTime += SampleCode::GetAnimSecondsDelta();
1463
1464        static const SkScalar gAnimPeriod = 10 * SK_Scalar1;
1465        static const SkScalar gAnimMag = SK_Scalar1 / 1000;
1466        SkScalar t = SkScalarMod(fPerspAnimTime, gAnimPeriod);
1467        if (SkScalarFloorToInt(SkScalarDiv(fPerspAnimTime, gAnimPeriod)) & 0x1) {
1468            t = gAnimPeriod - t;
1469        }
1470        t = 2 * t - gAnimPeriod;
1471        t = SkScalarMul(SkScalarDiv(t, gAnimPeriod), gAnimMag);
1472        SkMatrix m;
1473        m.reset();
1474        m.setPerspY(t);
1475        canvas->concat(m);
1476    }
1477
1478    this->installDrawFilter(canvas);
1479
1480    if (fMeasureFPS) {
1481        if (SampleView::SetRepeatDraw(child, FPS_REPEAT_COUNT)) {
1482            fMeasureFPS_StartTime = SkTime::GetMSecs();
1483        }
1484    } else {
1485        (void)SampleView::SetRepeatDraw(child, 1);
1486    }
1487    if (fPerspAnim) {
1488        this->inval(NULL);
1489    }
1490}
1491
1492void SampleWindow::afterChild(SkView* child, SkCanvas* canvas) {
1493    canvas->setDrawFilter(NULL);
1494}
1495
1496static SkBitmap::Config gConfigCycle[] = {
1497    SkBitmap::kNo_Config,           // none -> none
1498    SkBitmap::kNo_Config,           // a1 -> none
1499    SkBitmap::kNo_Config,           // a8 -> none
1500    SkBitmap::kNo_Config,           // index8 -> none
1501    SkBitmap::kARGB_4444_Config,    // 565 -> 4444
1502    SkBitmap::kARGB_8888_Config,    // 4444 -> 8888
1503    SkBitmap::kRGB_565_Config       // 8888 -> 565
1504};
1505
1506static SkBitmap::Config cycle_configs(SkBitmap::Config c) {
1507    return gConfigCycle[c];
1508}
1509
1510void SampleWindow::changeZoomLevel(float delta) {
1511    fZoomLevel += SkFloatToScalar(delta);
1512    if (fZoomLevel > 0) {
1513        fZoomLevel = SkMinScalar(fZoomLevel, MAX_ZOOM_LEVEL);
1514        fZoomScale = fZoomLevel + SK_Scalar1;
1515    } else if (fZoomLevel < 0) {
1516        fZoomLevel = SkMaxScalar(fZoomLevel, MIN_ZOOM_LEVEL);
1517        fZoomScale = SK_Scalar1 / (SK_Scalar1 - fZoomLevel);
1518    } else {
1519        fZoomScale = SK_Scalar1;
1520    }
1521    this->updateMatrix();
1522}
1523
1524void SampleWindow::updateMatrix(){
1525    SkMatrix m;
1526    m.reset();
1527    if (fZoomLevel) {
1528        SkPoint center;
1529        //m = this->getLocalMatrix();//.invert(&m);
1530        m.mapXY(fZoomCenterX, fZoomCenterY, &center);
1531        SkScalar cx = center.fX;
1532        SkScalar cy = center.fY;
1533
1534        m.setTranslate(-cx, -cy);
1535        m.postScale(fZoomScale, fZoomScale);
1536        m.postTranslate(cx, cy);
1537    }
1538
1539    if (fFlipAxis) {
1540        m.preTranslate(fZoomCenterX, fZoomCenterY);
1541        if (fFlipAxis & kFlipAxis_X) {
1542            m.preScale(-SK_Scalar1, SK_Scalar1);
1543        }
1544        if (fFlipAxis & kFlipAxis_Y) {
1545            m.preScale(SK_Scalar1, -SK_Scalar1);
1546        }
1547        m.preTranslate(-fZoomCenterX, -fZoomCenterY);
1548        //canvas->concat(m);
1549    }
1550    // Apply any gesture matrix
1551    m.preConcat(fGesture.localM());
1552    m.preConcat(fGesture.globalM());
1553
1554    this->setLocalMatrix(m);
1555
1556    this->updateTitle();
1557    this->inval(NULL);
1558}
1559bool SampleWindow::previousSample() {
1560    fCurrIndex = (fCurrIndex - 1 + fSamples.count()) % fSamples.count();
1561    this->loadView(create_transition(curr_view(this), (*fSamples[fCurrIndex])(),
1562                                     fTransitionPrev));
1563    return true;
1564}
1565
1566bool SampleWindow::nextSample() {
1567    fCurrIndex = (fCurrIndex + 1) % fSamples.count();
1568    this->loadView(create_transition(curr_view(this), (*fSamples[fCurrIndex])(),
1569                                     fTransitionNext));
1570    return true;
1571}
1572
1573bool SampleWindow::goToSample(int i) {
1574    fCurrIndex = (i) % fSamples.count();
1575    this->loadView(create_transition(curr_view(this),(*fSamples[fCurrIndex])(), 6));
1576    return true;
1577}
1578
1579SkString SampleWindow::getSampleTitle(int i) {
1580    SkView* view = (*fSamples[i])();
1581    SkString title;
1582    SampleCode::RequestTitle(view, &title);
1583    view->unref();
1584    return title;
1585}
1586
1587int SampleWindow::sampleCount() {
1588    return fSamples.count();
1589}
1590
1591void SampleWindow::showOverview() {
1592    this->loadView(create_transition(curr_view(this),
1593                                     create_overview(fSamples.count(), fSamples.begin()),
1594                                     4));
1595}
1596
1597void SampleWindow::installDrawFilter(SkCanvas* canvas) {
1598    canvas->setDrawFilter(new FlagsDrawFilter(fLCDState, fAAState,
1599                                              fFilterState, fHintingState))->unref();
1600}
1601
1602void SampleWindow::postAnimatingEvent() {
1603    if (fAnimating) {
1604        (new SkEvent(ANIMATING_EVENTTYPE, this->getSinkID()))->postDelay(ANIMATING_DELAY);
1605    }
1606}
1607
1608bool SampleWindow::onEvent(const SkEvent& evt) {
1609    if (evt.isType(gUpdateWindowTitleEvtName)) {
1610        this->updateTitle();
1611        return true;
1612    }
1613    if (evt.isType(ANIMATING_EVENTTYPE)) {
1614        if (fAnimating) {
1615            this->nextSample();
1616            this->postAnimatingEvent();
1617        }
1618        return true;
1619    }
1620    if (evt.isType("replace-transition-view")) {
1621        this->loadView((SkView*)SkEventSink::FindSink(evt.getFast32()));
1622        return true;
1623    }
1624    if (evt.isType("set-curr-index")) {
1625        this->goToSample(evt.getFast32());
1626        return true;
1627    }
1628    if (isInvalEvent(evt)) {
1629        this->inval(NULL);
1630        return true;
1631    }
1632    int selected = -1;
1633    if (SkOSMenu::FindListIndex(evt, "Device Type", &selected)) {
1634        this->setDeviceType((DeviceType)selected);
1635        return true;
1636    }
1637    if (SkOSMenu::FindTriState(evt, "Pipe", &fPipeState)) {
1638#ifdef PIPE_NET
1639        if (!fPipeState != SkOSMenu::kOnState)
1640            gServer.disconnectAll();
1641#endif
1642        (void)SampleView::SetUsePipe(curr_view(this), fPipeState);
1643        this->updateTitle();
1644        this->inval(NULL);
1645        return true;
1646    }
1647    if (SkOSMenu::FindTriState(evt, "Tiling", &fTilingState)) {
1648        int nx = 1, ny = 1;
1649        switch (fTilingState) {
1650            case SkOSMenu::kOffState:   nx = 1; ny = 1; break;
1651            case SkOSMenu::kMixedState: nx = 1; ny = 16; break;
1652            case SkOSMenu::kOnState:    nx = 4; ny = 4; break;
1653        }
1654        fTileCount.set(nx, ny);
1655        this->inval(NULL);
1656        return true;
1657    }
1658    if (SkOSMenu::FindSwitchState(evt, "Slide Show", NULL)) {
1659        this->toggleSlideshow();
1660        return true;
1661    }
1662    if (SkOSMenu::FindTriState(evt, "AA", &fAAState) ||
1663        SkOSMenu::FindTriState(evt, "LCD", &fLCDState) ||
1664        SkOSMenu::FindTriState(evt, "Filter", &fFilterState) ||
1665        SkOSMenu::FindTriState(evt, "Hinting", &fHintingState) ||
1666        SkOSMenu::FindSwitchState(evt, "Clip", &fUseClip) ||
1667        SkOSMenu::FindSwitchState(evt, "Zoomer", &fShowZoomer) ||
1668        SkOSMenu::FindSwitchState(evt, "Magnify", &fMagnify) ||
1669        SkOSMenu::FindListIndex(evt, "Transition-Next", &fTransitionNext) ||
1670        SkOSMenu::FindListIndex(evt, "Transition-Prev", &fTransitionPrev)) {
1671        this->inval(NULL);
1672        this->updateTitle();
1673        return true;
1674    }
1675    if (SkOSMenu::FindSwitchState(evt, "Flip X", NULL)) {
1676        fFlipAxis ^= kFlipAxis_X;
1677        this->updateMatrix();
1678        return true;
1679    }
1680    if (SkOSMenu::FindSwitchState(evt, "Flip Y", NULL)) {
1681        fFlipAxis ^= kFlipAxis_Y;
1682        this->updateMatrix();
1683        return true;
1684    }
1685    if (SkOSMenu::FindAction(evt,"Save to PDF")) {
1686        this->saveToPdf();
1687        return true;
1688    }
1689#ifdef DEBUGGER
1690    if (SkOSMenu::FindSwitchState(evt, "Debugger", &fDebugger)) {
1691        if (fDebugger) {
1692            fPipeState = SkOSMenu::kOnState;
1693            (void)SampleView::SetUsePipe(curr_view(this), fPipeState);
1694        } else {
1695            this->loadView((*fSamples[fCurrIndex])());
1696        }
1697        this->inval(NULL);
1698        return true;
1699    }
1700#endif
1701    return this->INHERITED::onEvent(evt);
1702}
1703
1704bool SampleWindow::onQuery(SkEvent* query) {
1705    if (query->isType("get-slide-count")) {
1706        query->setFast32(fSamples.count());
1707        return true;
1708    }
1709    if (query->isType("get-slide-title")) {
1710        SkView* view = (*fSamples[query->getFast32()])();
1711        SkEvent evt(gTitleEvtName);
1712        if (view->doQuery(&evt)) {
1713            query->setString("title", evt.findString(gTitleEvtName));
1714        }
1715        SkSafeUnref(view);
1716        return true;
1717    }
1718    if (query->isType("use-fast-text")) {
1719        SkEvent evt(gFastTextEvtName);
1720        return curr_view(this)->doQuery(&evt);
1721    }
1722    if (query->isType("ignore-window-bitmap")) {
1723        query->setFast32(this->getGrContext() != NULL);
1724        return true;
1725    }
1726    return this->INHERITED::onQuery(query);
1727}
1728
1729#if 0 // UNUSED
1730static void cleanup_for_filename(SkString* name) {
1731    char* str = name->writable_str();
1732    for (size_t i = 0; i < name->size(); i++) {
1733        switch (str[i]) {
1734            case ':': str[i] = '-'; break;
1735            case '/': str[i] = '-'; break;
1736            case ' ': str[i] = '_'; break;
1737            default: break;
1738        }
1739    }
1740}
1741#endif
1742
1743//extern bool gIgnoreFastBlurRect;
1744
1745bool SampleWindow::onHandleChar(SkUnichar uni) {
1746    {
1747        SkView* view = curr_view(this);
1748        if (view) {
1749            SkEvent evt(gCharEvtName);
1750            evt.setFast32(uni);
1751            if (view->doQuery(&evt)) {
1752                return true;
1753            }
1754        }
1755    }
1756
1757    int dx = 0xFF;
1758    int dy = 0xFF;
1759
1760    switch (uni) {
1761        case '5': dx =  0; dy =  0; break;
1762        case '8': dx =  0; dy = -1; break;
1763        case '6': dx =  1; dy =  0; break;
1764        case '2': dx =  0; dy =  1; break;
1765        case '4': dx = -1; dy =  0; break;
1766        case '7': dx = -1; dy = -1; break;
1767        case '9': dx =  1; dy = -1; break;
1768        case '3': dx =  1; dy =  1; break;
1769        case '1': dx = -1; dy =  1; break;
1770
1771        default:
1772            break;
1773    }
1774
1775    if (0xFF != dx && 0xFF != dy) {
1776        if ((dx | dy) == 0) {
1777            fScrollTestX = fScrollTestY = 0;
1778        } else {
1779            fScrollTestX += dx;
1780            fScrollTestY += dy;
1781        }
1782        this->inval(NULL);
1783        return true;
1784    }
1785
1786    switch (uni) {
1787        case 'b':
1788            {
1789            postEventToSink(SkNEW_ARGS(SkEvent, ("PictFileView::toggleBBox")), curr_view(this));
1790            this->updateTitle();
1791            this->inval(NULL);
1792            break;
1793            }
1794        case 'B':
1795//            gIgnoreFastBlurRect = !gIgnoreFastBlurRect;
1796            this->inval(NULL);
1797            break;
1798
1799        case 'f':
1800            // only
1801            toggleFPS();
1802            break;
1803        case 'g':
1804            fRequestGrabImage = true;
1805            this->inval(NULL);
1806            break;
1807        case 'G':
1808            gShowGMBounds = !gShowGMBounds;
1809            postEventToSink(GMSampleView::NewShowSizeEvt(gShowGMBounds),
1810                            curr_view(this));
1811            this->inval(NULL);
1812            break;
1813        case 'i':
1814            this->zoomIn();
1815            break;
1816        case 'o':
1817            this->zoomOut();
1818            break;
1819        case 'r':
1820            fRotate = !fRotate;
1821            this->inval(NULL);
1822            this->updateTitle();
1823            return true;
1824        case 'k':
1825            fPerspAnim = !fPerspAnim;
1826            this->inval(NULL);
1827            this->updateTitle();
1828            return true;
1829#if SK_SUPPORT_GPU
1830        case '\\':
1831            this->setDeviceType(kNullGPU_DeviceType);
1832            this->inval(NULL);
1833            this->updateTitle();
1834            return true;
1835        case 'p':
1836            {
1837                GrContext* grContext = this->getGrContext();
1838                if (grContext) {
1839                    size_t cacheBytes = grContext->getGpuTextureCacheBytes();
1840                    grContext->freeGpuResources();
1841                    SkDebugf("Purged %d bytes from the GPU resource cache.\n",
1842                             cacheBytes);
1843                }
1844            }
1845            return true;
1846#endif
1847        case 's':
1848            fScale = !fScale;
1849            this->inval(NULL);
1850            this->updateTitle();
1851            return true;
1852        default:
1853            break;
1854    }
1855
1856    if (fAppMenu->handleKeyEquivalent(uni)|| fSlideMenu->handleKeyEquivalent(uni)) {
1857        this->onUpdateMenu(fAppMenu);
1858        this->onUpdateMenu(fSlideMenu);
1859        return true;
1860    }
1861    return this->INHERITED::onHandleChar(uni);
1862}
1863
1864void SampleWindow::setDeviceType(DeviceType type) {
1865    if (type == fDeviceType)
1866        return;
1867
1868    fDevManager->tearDownBackend(this);
1869
1870    fDeviceType = type;
1871
1872    fDevManager->setUpBackend(this, fMSAASampleCount);
1873
1874    this->updateTitle();
1875    this->inval(NULL);
1876}
1877
1878void SampleWindow::toggleSlideshow() {
1879    fAnimating = !fAnimating;
1880    this->postAnimatingEvent();
1881    this->updateTitle();
1882}
1883
1884void SampleWindow::toggleRendering() {
1885    this->setDeviceType(cycle_devicetype(fDeviceType));
1886    this->updateTitle();
1887    this->inval(NULL);
1888}
1889
1890void SampleWindow::toggleFPS() {
1891    fMeasureFPS = !fMeasureFPS;
1892    this->updateTitle();
1893    this->inval(NULL);
1894}
1895
1896#include "SkDumpCanvas.h"
1897
1898bool SampleWindow::onHandleKey(SkKey key) {
1899    {
1900        SkView* view = curr_view(this);
1901        if (view) {
1902            SkEvent evt(gKeyEvtName);
1903            evt.setFast32(key);
1904            if (view->doQuery(&evt)) {
1905                return true;
1906            }
1907        }
1908    }
1909    switch (key) {
1910        case kRight_SkKey:
1911            if (this->nextSample()) {
1912                return true;
1913            }
1914            break;
1915        case kLeft_SkKey:
1916            if (this->previousSample()) {
1917                return true;
1918            }
1919            return true;
1920        case kUp_SkKey:
1921            if (USE_ARROWS_FOR_ZOOM) {
1922                this->changeZoomLevel(1.f);
1923            } else {
1924                fNClip = !fNClip;
1925                this->inval(NULL);
1926                this->updateTitle();
1927            }
1928            return true;
1929        case kDown_SkKey:
1930            if (USE_ARROWS_FOR_ZOOM) {
1931                this->changeZoomLevel(-1.f);
1932            } else {
1933                this->setConfig(cycle_configs(this->getBitmap().config()));
1934                this->updateTitle();
1935            }
1936            return true;
1937        case kOK_SkKey: {
1938            SkString title;
1939            if (curr_title(this, &title)) {
1940                writeTitleToPrefs(title.c_str());
1941            }
1942            return true;
1943        }
1944        case kBack_SkKey:
1945            this->showOverview();
1946            return true;
1947        default:
1948            break;
1949    }
1950    return this->INHERITED::onHandleKey(key);
1951}
1952
1953///////////////////////////////////////////////////////////////////////////////
1954
1955static const char gGestureClickType[] = "GestureClickType";
1956
1957bool SampleWindow::onDispatchClick(int x, int y, Click::State state,
1958        void* owner) {
1959    if (Click::kMoved_State == state) {
1960        updatePointer(x, y);
1961    }
1962    int w = SkScalarRound(this->width());
1963    int h = SkScalarRound(this->height());
1964
1965    // check for the resize-box
1966    if (w - x < 16 && h - y < 16) {
1967        return false;   // let the OS handle the click
1968    }
1969    else if (fMagnify) {
1970        //it's only necessary to update the drawing if there's a click
1971        this->inval(NULL);
1972        return false; //prevent dragging while magnify is enabled
1973    }
1974    else {
1975        return this->INHERITED::onDispatchClick(x, y, state, owner);
1976    }
1977}
1978
1979class GestureClick : public SkView::Click {
1980public:
1981    GestureClick(SkView* target) : SkView::Click(target) {
1982        this->setType(gGestureClickType);
1983    }
1984
1985    static bool IsGesture(Click* click) {
1986        return click->isType(gGestureClickType);
1987    }
1988};
1989
1990SkView::Click* SampleWindow::onFindClickHandler(SkScalar x, SkScalar y) {
1991    return new GestureClick(this);
1992}
1993
1994bool SampleWindow::onClick(Click* click) {
1995    if (GestureClick::IsGesture(click)) {
1996        float x = static_cast<float>(click->fICurr.fX);
1997        float y = static_cast<float>(click->fICurr.fY);
1998
1999        switch (click->fState) {
2000            case SkView::Click::kDown_State:
2001                fGesture.touchBegin(click->fOwner, x, y);
2002                break;
2003            case SkView::Click::kMoved_State:
2004                fGesture.touchMoved(click->fOwner, x, y);
2005                this->updateMatrix();
2006                break;
2007            case SkView::Click::kUp_State:
2008                fGesture.touchEnd(click->fOwner);
2009                this->updateMatrix();
2010                break;
2011        }
2012        return true;
2013    }
2014    return false;
2015}
2016
2017///////////////////////////////////////////////////////////////////////////////
2018
2019void SampleWindow::loadView(SkView* view) {
2020    SkView::F2BIter iter(this);
2021    SkView* prev = iter.next();
2022    if (prev) {
2023        prev->detachFromParent();
2024    }
2025
2026    view->setVisibleP(true);
2027    view->setClipToBounds(false);
2028    this->attachChildToFront(view)->unref();
2029    view->setSize(this->width(), this->height());
2030
2031    //repopulate the slide menu when a view is loaded
2032    fSlideMenu->reset();
2033#ifdef DEBUGGER
2034    if (!is_debugger(view) && !is_overview(view) && !is_transition(view) && fDebugger) {
2035        //Force Pipe to be on if using debugger
2036        fPipeState = SkOSMenu::kOnState;
2037    }
2038#endif
2039    (void)SampleView::SetUsePipe(view, fPipeState);
2040    if (SampleView::IsSampleView(view))
2041        ((SampleView*)view)->requestMenu(fSlideMenu);
2042    this->onUpdateMenu(fSlideMenu);
2043    this->updateTitle();
2044}
2045
2046static const char* gConfigNames[] = {
2047    "unknown config",
2048    "A1",
2049    "A8",
2050    "Index8",
2051    "565",
2052    "4444",
2053    "8888"
2054};
2055
2056static const char* configToString(SkBitmap::Config c) {
2057    return gConfigNames[c];
2058}
2059
2060static const char* gDeviceTypePrefix[] = {
2061    "raster: ",
2062    "picture: ",
2063#if SK_SUPPORT_GPU
2064    "opengl: ",
2065#if SK_ANGLE
2066    "angle: ",
2067#endif // SK_ANGLE
2068    "null-gl: "
2069#endif // SK_SUPPORT_GPU
2070};
2071SK_COMPILE_ASSERT(SK_ARRAY_COUNT(gDeviceTypePrefix) == SampleWindow::kDeviceTypeCnt,
2072                  array_size_mismatch);
2073
2074static const bool gDeviceTypeIsGPU[] = {
2075    false,
2076    false,
2077#if SK_SUPPORT_GPU
2078    true,
2079#if SK_ANGLE
2080    true,
2081#endif // SK_ANGLE
2082    true
2083#endif // SK_SUPPORT_GPU
2084};
2085SK_COMPILE_ASSERT(SK_ARRAY_COUNT(gDeviceTypeIsGPU) == SampleWindow::kDeviceTypeCnt,
2086                  array_size_mismatch);
2087
2088
2089static const char* trystate_str(SkOSMenu::TriState state,
2090                                const char trueStr[], const char falseStr[]) {
2091    if (SkOSMenu::kOnState == state) {
2092        return trueStr;
2093    } else if (SkOSMenu::kOffState == state) {
2094        return falseStr;
2095    }
2096    return NULL;
2097}
2098
2099void SampleWindow::updateTitle() {
2100    SkView* view = curr_view(this);
2101
2102    SkString title;
2103    if (!curr_title(this, &title)) {
2104        title.set("<unknown>");
2105    }
2106
2107    title.prepend(gDeviceTypePrefix[fDeviceType]);
2108
2109    title.prepend(" ");
2110    title.prepend(configToString(this->getBitmap().config()));
2111
2112    if (fAnimating) {
2113        title.prepend("<A> ");
2114    }
2115    if (fScale) {
2116        title.prepend("<S> ");
2117    }
2118    if (fRotate) {
2119        title.prepend("<R> ");
2120    }
2121    if (fNClip) {
2122        title.prepend("<C> ");
2123    }
2124    if (fPerspAnim) {
2125        title.prepend("<K> ");
2126    }
2127
2128    title.prepend(trystate_str(fLCDState, "LCD ", "lcd "));
2129    title.prepend(trystate_str(fAAState, "AA ", "aa "));
2130    title.prepend(trystate_str(fFilterState, "H ", "h "));
2131    title.prepend(fFlipAxis & kFlipAxis_X ? "X " : NULL);
2132    title.prepend(fFlipAxis & kFlipAxis_Y ? "Y " : NULL);
2133
2134    if (fZoomLevel) {
2135        title.prependf("{%.2f} ", SkScalarToFloat(fZoomLevel));
2136    }
2137
2138    if (fMeasureFPS) {
2139        title.appendf(" %8.3f ms", fMeasureFPS_Time / (float)FPS_REPEAT_COUNT);
2140    }
2141    if (SampleView::IsSampleView(view)) {
2142        switch (fPipeState) {
2143            case SkOSMenu::kOnState:
2144                title.prepend("<Pipe> ");
2145                break;
2146            case SkOSMenu::kMixedState:
2147                title.prepend("<Tiled Pipe> ");
2148                break;
2149
2150            default:
2151                break;
2152        }
2153        title.prepend("! ");
2154    }
2155
2156#if SK_SUPPORT_GPU
2157    if (gDeviceTypeIsGPU[fDeviceType] &&
2158        NULL != fDevManager &&
2159        fDevManager->getGrRenderTarget()->numSamples() > 0) {
2160        title.appendf(" [MSAA: %d]",
2161                       fDevManager->getGrRenderTarget()->numSamples());
2162    }
2163#endif
2164
2165    this->setTitle(title.c_str());
2166}
2167
2168void SampleWindow::onSizeChange() {
2169    this->INHERITED::onSizeChange();
2170
2171    SkView::F2BIter iter(this);
2172    SkView* view = iter.next();
2173    view->setSize(this->width(), this->height());
2174
2175    // rebuild our clippath
2176    {
2177        const SkScalar W = this->width();
2178        const SkScalar H = this->height();
2179
2180        fClipPath.reset();
2181#if 0
2182        for (SkScalar y = SK_Scalar1; y < H; y += SkIntToScalar(32)) {
2183            SkRect r;
2184            r.set(SK_Scalar1, y, SkIntToScalar(30), y + SkIntToScalar(30));
2185            for (; r.fLeft < W; r.offset(SkIntToScalar(32), 0))
2186                fClipPath.addRect(r);
2187        }
2188#else
2189        SkRect r;
2190        r.set(0, 0, W, H);
2191        fClipPath.addRect(r, SkPath::kCCW_Direction);
2192        r.set(W/4, H/4, W*3/4, H*3/4);
2193        fClipPath.addRect(r, SkPath::kCW_Direction);
2194#endif
2195    }
2196
2197    fZoomCenterX = SkScalarHalf(this->width());
2198    fZoomCenterY = SkScalarHalf(this->height());
2199
2200#ifdef SK_BUILD_FOR_ANDROID
2201    // FIXME: The first draw after a size change does not work on Android, so
2202    // we post an invalidate.
2203    this->postInvalDelay();
2204#endif
2205    this->updateTitle();    // to refresh our config
2206    fDevManager->windowSizeChanged(this);
2207}
2208
2209///////////////////////////////////////////////////////////////////////////////
2210
2211static const char is_sample_view_tag[] = "sample-is-sample-view";
2212static const char repeat_count_tag[] = "sample-set-repeat-count";
2213static const char set_use_pipe_tag[] = "sample-set-use-pipe";
2214
2215bool SampleView::IsSampleView(SkView* view) {
2216    SkEvent evt(is_sample_view_tag);
2217    return view->doQuery(&evt);
2218}
2219
2220bool SampleView::SetRepeatDraw(SkView* view, int count) {
2221    SkEvent evt(repeat_count_tag);
2222    evt.setFast32(count);
2223    return view->doEvent(evt);
2224}
2225
2226bool SampleView::SetUsePipe(SkView* view, SkOSMenu::TriState state) {
2227    SkEvent evt;
2228    evt.setS32(set_use_pipe_tag, state);
2229    return view->doEvent(evt);
2230}
2231
2232bool SampleView::onEvent(const SkEvent& evt) {
2233    if (evt.isType(repeat_count_tag)) {
2234        fRepeatCount = evt.getFast32();
2235        return true;
2236    }
2237    int32_t pipeHolder;
2238    if (evt.findS32(set_use_pipe_tag, &pipeHolder)) {
2239        fPipeState = static_cast<SkOSMenu::TriState>(pipeHolder);
2240        return true;
2241    }
2242    return this->INHERITED::onEvent(evt);
2243}
2244
2245bool SampleView::onQuery(SkEvent* evt) {
2246    if (evt->isType(is_sample_view_tag)) {
2247        return true;
2248    }
2249    return this->INHERITED::onQuery(evt);
2250}
2251
2252
2253class SimplePC : public SkGPipeController {
2254public:
2255    SimplePC(SkCanvas* target);
2256    ~SimplePC();
2257
2258    virtual void* requestBlock(size_t minRequest, size_t* actual);
2259    virtual void notifyWritten(size_t bytes);
2260
2261private:
2262    SkGPipeReader   fReader;
2263    void*           fBlock;
2264    size_t          fBlockSize;
2265    size_t          fBytesWritten;
2266    int             fAtomsWritten;
2267    SkGPipeReader::Status   fStatus;
2268
2269    size_t        fTotalWritten;
2270};
2271
2272SimplePC::SimplePC(SkCanvas* target) : fReader(target) {
2273    fBlock = NULL;
2274    fBlockSize = fBytesWritten = 0;
2275    fStatus = SkGPipeReader::kDone_Status;
2276    fTotalWritten = 0;
2277    fAtomsWritten = 0;
2278}
2279
2280SimplePC::~SimplePC() {
2281//    SkASSERT(SkGPipeReader::kDone_Status == fStatus);
2282    if (fTotalWritten) {
2283        SkDebugf("--- %d bytes %d atoms, status %d\n", fTotalWritten,
2284                 fAtomsWritten, fStatus);
2285#ifdef  PIPE_FILE
2286        //File is open in append mode
2287        FILE* f = fopen(FILE_PATH, "ab");
2288        SkASSERT(f != NULL);
2289        fwrite((const char*)fBlock + fBytesWritten, 1, bytes, f);
2290        fclose(f);
2291#endif
2292#ifdef PIPE_NET
2293        if (fAtomsWritten > 1 && fTotalWritten > 4) { //ignore done
2294            gServer.acceptConnections();
2295            gServer.writePacket(fBlock, fTotalWritten);
2296        }
2297#endif
2298#ifdef  DEBUGGER
2299        gTempDataStore.reset();
2300        gTempDataStore.append(fTotalWritten, (const char*)fBlock);
2301#endif
2302    }
2303    sk_free(fBlock);
2304}
2305
2306void* SimplePC::requestBlock(size_t minRequest, size_t* actual) {
2307    sk_free(fBlock);
2308
2309    fBlockSize = minRequest * 4;
2310    fBlock = sk_malloc_throw(fBlockSize);
2311    fBytesWritten = 0;
2312    *actual = fBlockSize;
2313    return fBlock;
2314}
2315
2316void SimplePC::notifyWritten(size_t bytes) {
2317    SkASSERT(fBytesWritten + bytes <= fBlockSize);
2318    fStatus = fReader.playback((const char*)fBlock + fBytesWritten, bytes);
2319    SkASSERT(SkGPipeReader::kError_Status != fStatus);
2320    fBytesWritten += bytes;
2321    fTotalWritten += bytes;
2322
2323    fAtomsWritten += 1;
2324}
2325
2326void SampleView::draw(SkCanvas* canvas) {
2327    if (SkOSMenu::kOffState == fPipeState) {
2328        this->INHERITED::draw(canvas);
2329    } else {
2330        SkGPipeWriter writer;
2331        SimplePC controller(canvas);
2332        TiledPipeController tc(canvas->getDevice()->accessBitmap(false),
2333                               &canvas->getTotalMatrix());
2334        SkGPipeController* pc;
2335        if (SkOSMenu::kMixedState == fPipeState) {
2336            pc = &tc;
2337        } else {
2338            pc = &controller;
2339        }
2340        uint32_t flags = SkGPipeWriter::kCrossProcess_Flag;
2341
2342        canvas = writer.startRecording(pc, flags);
2343        //Must draw before controller goes out of scope and sends data
2344        this->INHERITED::draw(canvas);
2345        //explicitly end recording to ensure writer is flushed before the memory
2346        //is freed in the deconstructor of the controller
2347        writer.endRecording();
2348    }
2349}
2350void SampleView::onDraw(SkCanvas* canvas) {
2351    this->onDrawBackground(canvas);
2352
2353    for (int i = 0; i < fRepeatCount; i++) {
2354        SkAutoCanvasRestore acr(canvas, true);
2355        this->onDrawContent(canvas);
2356    }
2357}
2358
2359void SampleView::onDrawBackground(SkCanvas* canvas) {
2360    canvas->drawColor(fBGColor);
2361}
2362
2363///////////////////////////////////////////////////////////////////////////////
2364
2365template <typename T> void SkTBSort(T array[], int count) {
2366    for (int i = 1; i < count - 1; i++) {
2367        bool didSwap = false;
2368        for (int j = count - 1; j > i; --j) {
2369            if (array[j] < array[j-1]) {
2370                T tmp(array[j-1]);
2371                array[j-1] = array[j];
2372                array[j] = tmp;
2373                didSwap = true;
2374            }
2375        }
2376        if (!didSwap) {
2377            break;
2378        }
2379    }
2380
2381    for (int k = 0; k < count - 1; k++) {
2382        SkASSERT(!(array[k+1] < array[k]));
2383    }
2384}
2385
2386#include "SkRandom.h"
2387
2388static void rand_rect(SkIRect* rect, SkRandom& rand) {
2389    int bits = 8;
2390    int shift = 32 - bits;
2391    rect->set(rand.nextU() >> shift, rand.nextU() >> shift,
2392              rand.nextU() >> shift, rand.nextU() >> shift);
2393    rect->sort();
2394}
2395
2396static void dumpRect(const SkIRect& r) {
2397    SkDebugf(" { %d, %d, %d, %d },\n",
2398             r.fLeft, r.fTop,
2399             r.fRight, r.fBottom);
2400}
2401
2402static void test_rects(const SkIRect rect[], int count) {
2403    SkRegion rgn0, rgn1;
2404
2405    for (int i = 0; i < count; i++) {
2406        rgn0.op(rect[i], SkRegion::kUnion_Op);
2407     //   dumpRect(rect[i]);
2408    }
2409    rgn1.setRects(rect, count);
2410
2411    if (rgn0 != rgn1) {
2412        SkDebugf("\n");
2413        for (int i = 0; i < count; i++) {
2414            dumpRect(rect[i]);
2415        }
2416        SkDebugf("\n");
2417    }
2418}
2419
2420static void test() {
2421    size_t i;
2422
2423    const SkIRect r0[] = {
2424        { 0, 0, 1, 1 },
2425        { 2, 2, 3, 3 },
2426    };
2427    const SkIRect r1[] = {
2428        { 0, 0, 1, 3 },
2429        { 1, 1, 2, 2 },
2430        { 2, 0, 3, 3 },
2431    };
2432    const SkIRect r2[] = {
2433        { 0, 0, 1, 2 },
2434        { 2, 1, 3, 3 },
2435        { 4, 0, 5, 1 },
2436        { 6, 0, 7, 4 },
2437    };
2438
2439    static const struct {
2440        const SkIRect* fRects;
2441        int            fCount;
2442    } gRecs[] = {
2443        { r0, SK_ARRAY_COUNT(r0) },
2444        { r1, SK_ARRAY_COUNT(r1) },
2445        { r2, SK_ARRAY_COUNT(r2) },
2446    };
2447
2448    for (i = 0; i < SK_ARRAY_COUNT(gRecs); i++) {
2449        test_rects(gRecs[i].fRects, gRecs[i].fCount);
2450    }
2451
2452    SkRandom rand;
2453    for (i = 0; i < 10000; i++) {
2454        SkRegion rgn0, rgn1;
2455
2456        const int N = 8;
2457        SkIRect rect[N];
2458        for (int j = 0; j < N; j++) {
2459            rand_rect(&rect[j], rand);
2460        }
2461        test_rects(rect, N);
2462    }
2463}
2464
2465// FIXME: this should be in a header
2466SkOSWindow* create_sk_window(void* hwnd, int argc, char** argv);
2467SkOSWindow* create_sk_window(void* hwnd, int argc, char** argv) {
2468    if (false) { // avoid bit rot, suppress warning
2469        test();
2470    }
2471    return new SampleWindow(hwnd, argc, argv, NULL);
2472}
2473
2474// FIXME: this should be in a header
2475void get_preferred_size(int* x, int* y, int* width, int* height);
2476void get_preferred_size(int* x, int* y, int* width, int* height) {
2477    *x = 10;
2478    *y = 50;
2479    *width = 640;
2480    *height = 480;
2481}
2482
2483#ifdef SK_BUILD_FOR_IOS
2484void save_args(int argc, char *argv[]) {
2485}
2486#endif
2487
2488// FIXME: this should be in a header
2489void application_init();
2490void application_init() {
2491//    setenv("ANDROID_ROOT", "../../../data", 0);
2492#ifdef SK_BUILD_FOR_MAC
2493    setenv("ANDROID_ROOT", "/android/device/data", 0);
2494#endif
2495    SkGraphics::Init();
2496    SkEvent::Init();
2497}
2498
2499// FIXME: this should be in a header
2500void application_term();
2501void application_term() {
2502    SkEvent::Term();
2503    SkGraphics::Term();
2504}
2505