reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1 | #include "SampleCode.h" |
| 2 | #include "SkView.h" |
| 3 | #include "SkCanvas.h" |
| 4 | #include "SkGraphics.h" |
| 5 | #include "SkRandom.h" |
| 6 | #include "SkFlipPixelRef.h" |
| 7 | #include "SkPageFlipper.h" |
| 8 | |
| 9 | #include <pthread.h> |
| 10 | |
| 11 | #define WIDTH 200 |
| 12 | #define HEIGHT 200 |
| 13 | |
| 14 | static bool gDone; |
| 15 | |
| 16 | static void bounce(SkScalar* x, SkScalar* dx, const int max) { |
| 17 | *x += *dx; |
| 18 | if (*x < 0) { |
| 19 | *x = 0; |
| 20 | if (*dx < 0) { |
| 21 | *dx = -*dx; |
| 22 | } |
| 23 | } else if (*x > SkIntToScalar(max)) { |
| 24 | *x = SkIntToScalar(max); |
| 25 | if (*dx > 0) { |
| 26 | *dx = -*dx; |
| 27 | } |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | static void* draw_proc(void* context) { |
| 32 | const int OVALW = 32; |
| 33 | const int OVALH = 32; |
| 34 | |
| 35 | const SkBitmap* bm = static_cast<const SkBitmap*>(context); |
| 36 | SkFlipPixelRef* ref = static_cast<SkFlipPixelRef*>(bm->pixelRef()); |
| 37 | |
| 38 | const int DSCALE = 1; |
| 39 | SkScalar dx = SkIntToScalar(7) / DSCALE; |
| 40 | SkScalar dy = SkIntToScalar(5) / DSCALE; |
| 41 | SkScalar x = 0; |
| 42 | SkScalar y = 0; |
| 43 | |
| 44 | SkPaint paint; |
| 45 | |
| 46 | paint.setAntiAlias(true); |
reed@android.com | 44a6312 | 2009-05-30 02:40:28 +0000 | [diff] [blame] | 47 | paint.setColor(SK_ColorRED); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 48 | |
| 49 | SkRect oval; |
| 50 | oval.setEmpty(); |
| 51 | |
| 52 | while (!gDone) { |
| 53 | ref->inval(oval, true); |
| 54 | oval.set(x, y, x + SkIntToScalar(OVALW), y + SkIntToScalar(OVALH)); |
| 55 | ref->inval(oval, true); |
| 56 | |
| 57 | SkAutoFlipUpdate update(ref); |
| 58 | |
| 59 | if (!update.dirty().isEmpty()) { |
| 60 | // this must be local to the loop, since it needs to forget the pixels |
| 61 | // its writing to after each iteration, since we do the swap |
| 62 | SkCanvas canvas(update.bitmap()); |
| 63 | |
| 64 | // SkDebugf("----- dirty [%d %d %d %d]\n", dirty.getBounds().fLeft, dirty.getBounds().fTop, dirty.getBounds().width(), dirty.getBounds().height()); |
| 65 | canvas.clipRegion(update.dirty()); |
| 66 | |
reed@android.com | 845fdac | 2009-06-23 03:01:32 +0000 | [diff] [blame] | 67 | canvas.drawColor(0, SkXfermode::kClear_Mode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 68 | canvas.drawOval(oval, paint); |
| 69 | } |
| 70 | bounce(&x, &dx, WIDTH-OVALW); |
| 71 | bounce(&y, &dy, HEIGHT-OVALH); |
| 72 | |
| 73 | #if 1 |
| 74 | for (int i = 0; i < 1000; i++) { |
| 75 | for (int j = 0; j < 10000; j++) { |
| 76 | SkFixedMul(j, 10); |
| 77 | } |
| 78 | } |
| 79 | #endif |
| 80 | } |
| 81 | return NULL; |
| 82 | } |
| 83 | |
| 84 | static const SkBitmap::Config gConfigs[] = { |
| 85 | SkBitmap::kARGB_8888_Config, |
| 86 | #if 1 |
| 87 | SkBitmap::kRGB_565_Config, |
| 88 | SkBitmap::kARGB_4444_Config, |
| 89 | SkBitmap::kA8_Config |
| 90 | #endif |
| 91 | }; |
| 92 | |
| 93 | class PageFlipView : public SkView { |
| 94 | public: |
| 95 | |
| 96 | enum { N = SK_ARRAY_COUNT(gConfigs) }; |
| 97 | |
| 98 | pthread_t fThreads[N]; |
| 99 | SkBitmap fBitmaps[N]; |
| 100 | |
| 101 | PageFlipView() { |
| 102 | gDone = false; |
| 103 | for (int i = 0; i < N; i++) { |
| 104 | int status; |
| 105 | pthread_attr_t attr; |
| 106 | |
| 107 | status = pthread_attr_init(&attr); |
| 108 | SkASSERT(0 == status); |
| 109 | |
| 110 | fBitmaps[i].setConfig(gConfigs[i], WIDTH, HEIGHT); |
| 111 | SkFlipPixelRef* pr = new SkFlipPixelRef(gConfigs[i], WIDTH, HEIGHT); |
| 112 | fBitmaps[i].setPixelRef(pr)->unref(); |
| 113 | fBitmaps[i].eraseColor(0); |
| 114 | |
| 115 | status = pthread_create(&fThreads[i], &attr, draw_proc, &fBitmaps[i]); |
| 116 | SkASSERT(0 == status); |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | virtual ~PageFlipView() { |
| 121 | gDone = true; |
| 122 | for (int i = 0; i < N; i++) { |
| 123 | void* ret; |
| 124 | int status = pthread_join(fThreads[i], &ret); |
| 125 | SkASSERT(0 == status); |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | protected: |
| 130 | // overrides from SkEventSink |
| 131 | virtual bool onQuery(SkEvent* evt) { |
| 132 | if (SampleCode::TitleQ(*evt)) { |
| 133 | SampleCode::TitleR(evt, "PageFlip"); |
| 134 | return true; |
| 135 | } |
| 136 | return this->INHERITED::onQuery(evt); |
| 137 | } |
| 138 | |
| 139 | void drawBG(SkCanvas* canvas) { |
| 140 | canvas->drawColor(0xFFDDDDDD); |
| 141 | // canvas->drawColor(SK_ColorWHITE); |
| 142 | } |
| 143 | |
| 144 | virtual void onDraw(SkCanvas* canvas) { |
| 145 | this->drawBG(canvas); |
| 146 | |
| 147 | SkScalar x = SkIntToScalar(10); |
| 148 | SkScalar y = SkIntToScalar(10); |
| 149 | for (int i = 0; i < N; i++) { |
| 150 | canvas->drawBitmap(fBitmaps[i], x, y); |
| 151 | x += SkIntToScalar(fBitmaps[i].width() + 20); |
| 152 | } |
| 153 | this->inval(NULL); |
| 154 | } |
| 155 | |
| 156 | virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) { |
| 157 | this->inval(NULL); |
| 158 | return this->INHERITED::onFindClickHandler(x, y); |
| 159 | } |
| 160 | |
| 161 | virtual bool onClick(Click* click) { |
| 162 | return this->INHERITED::onClick(click); |
| 163 | } |
| 164 | |
| 165 | private: |
| 166 | typedef SkView INHERITED; |
| 167 | }; |
| 168 | |
| 169 | ////////////////////////////////////////////////////////////////////////////// |
| 170 | |
| 171 | static SkView* MyFactory() { return new PageFlipView; } |
| 172 | static SkViewRegister reg(MyFactory); |
| 173 | |