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#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);
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