| #include "SampleCode.h" |
| #include "SkView.h" |
| #include "SkCanvas.h" |
| #include "SkGraphics.h" |
| #include "SkRandom.h" |
| #include "SkFlipPixelRef.h" |
| #include "SkPageFlipper.h" |
| |
| #include <pthread.h> |
| |
| #define WIDTH 200 |
| #define HEIGHT 200 |
| |
| static bool gDone; |
| |
| static void bounce(SkScalar* x, SkScalar* dx, const int max) { |
| *x += *dx; |
| if (*x < 0) { |
| *x = 0; |
| if (*dx < 0) { |
| *dx = -*dx; |
| } |
| } else if (*x > SkIntToScalar(max)) { |
| *x = SkIntToScalar(max); |
| if (*dx > 0) { |
| *dx = -*dx; |
| } |
| } |
| } |
| |
| static void* draw_proc(void* context) { |
| const int OVALW = 32; |
| const int OVALH = 32; |
| |
| const SkBitmap* bm = static_cast<const SkBitmap*>(context); |
| SkFlipPixelRef* ref = static_cast<SkFlipPixelRef*>(bm->pixelRef()); |
| |
| const int DSCALE = 1; |
| SkScalar dx = SkIntToScalar(7) / DSCALE; |
| SkScalar dy = SkIntToScalar(5) / DSCALE; |
| SkScalar x = 0; |
| SkScalar y = 0; |
| |
| SkPaint paint; |
| |
| paint.setAntiAlias(true); |
| paint.setColor(SK_ColorRED); |
| |
| SkRect oval; |
| oval.setEmpty(); |
| |
| while (!gDone) { |
| ref->inval(oval, true); |
| oval.set(x, y, x + SkIntToScalar(OVALW), y + SkIntToScalar(OVALH)); |
| ref->inval(oval, true); |
| |
| SkAutoFlipUpdate update(ref); |
| |
| if (!update.dirty().isEmpty()) { |
| // this must be local to the loop, since it needs to forget the pixels |
| // its writing to after each iteration, since we do the swap |
| SkCanvas canvas(update.bitmap()); |
| |
| // SkDebugf("----- dirty [%d %d %d %d]\n", dirty.getBounds().fLeft, dirty.getBounds().fTop, dirty.getBounds().width(), dirty.getBounds().height()); |
| canvas.clipRegion(update.dirty()); |
| |
| canvas.drawColor(0, SkXfermode::kClear_Mode); |
| canvas.drawOval(oval, paint); |
| } |
| bounce(&x, &dx, WIDTH-OVALW); |
| bounce(&y, &dy, HEIGHT-OVALH); |
| |
| #if 1 |
| for (int i = 0; i < 1000; i++) { |
| for (int j = 0; j < 10000; j++) { |
| SkFixedMul(j, 10); |
| } |
| } |
| #endif |
| } |
| return NULL; |
| } |
| |
| static const SkBitmap::Config gConfigs[] = { |
| SkBitmap::kARGB_8888_Config, |
| #if 1 |
| SkBitmap::kRGB_565_Config, |
| SkBitmap::kARGB_4444_Config, |
| SkBitmap::kA8_Config |
| #endif |
| }; |
| |
| class PageFlipView : public SkView { |
| public: |
| |
| enum { N = SK_ARRAY_COUNT(gConfigs) }; |
| |
| pthread_t fThreads[N]; |
| SkBitmap fBitmaps[N]; |
| |
| PageFlipView() { |
| gDone = false; |
| for (int i = 0; i < N; i++) { |
| int status; |
| pthread_attr_t attr; |
| |
| status = pthread_attr_init(&attr); |
| SkASSERT(0 == status); |
| |
| fBitmaps[i].setConfig(gConfigs[i], WIDTH, HEIGHT); |
| SkFlipPixelRef* pr = new SkFlipPixelRef(gConfigs[i], WIDTH, HEIGHT); |
| fBitmaps[i].setPixelRef(pr)->unref(); |
| fBitmaps[i].eraseColor(0); |
| |
| status = pthread_create(&fThreads[i], &attr, draw_proc, &fBitmaps[i]); |
| SkASSERT(0 == status); |
| } |
| } |
| |
| virtual ~PageFlipView() { |
| gDone = true; |
| for (int i = 0; i < N; i++) { |
| void* ret; |
| int status = pthread_join(fThreads[i], &ret); |
| SkASSERT(0 == status); |
| } |
| } |
| |
| protected: |
| // overrides from SkEventSink |
| virtual bool onQuery(SkEvent* evt) { |
| if (SampleCode::TitleQ(*evt)) { |
| SampleCode::TitleR(evt, "PageFlip"); |
| return true; |
| } |
| return this->INHERITED::onQuery(evt); |
| } |
| |
| void drawBG(SkCanvas* canvas) { |
| canvas->drawColor(0xFFDDDDDD); |
| // canvas->drawColor(SK_ColorWHITE); |
| } |
| |
| virtual void onDraw(SkCanvas* canvas) { |
| this->drawBG(canvas); |
| |
| SkScalar x = SkIntToScalar(10); |
| SkScalar y = SkIntToScalar(10); |
| for (int i = 0; i < N; i++) { |
| canvas->drawBitmap(fBitmaps[i], x, y); |
| x += SkIntToScalar(fBitmaps[i].width() + 20); |
| } |
| this->inval(NULL); |
| } |
| |
| virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) { |
| this->inval(NULL); |
| return this->INHERITED::onFindClickHandler(x, y); |
| } |
| |
| virtual bool onClick(Click* click) { |
| return this->INHERITED::onClick(click); |
| } |
| |
| private: |
| typedef SkView INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static SkView* MyFactory() { return new PageFlipView; } |
| static SkViewRegister reg(MyFactory); |
| |