Permalink
Fetching contributors…
Cannot retrieve contributors at this time
100 lines (79 sloc) 2.44 KB
/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
#include "SkCanvas.h"
#include "SkBlurImageFilter.h"
static void make_bm(SkBitmap* bm) {
bm->allocN32Pixels(100, 100);
bm->eraseColor(SK_ColorBLUE);
SkCanvas canvas(*bm);
SkPaint paint;
paint.setAntiAlias(true);
paint.setColor(SK_ColorRED);
canvas.drawCircle(50, 50, 50, paint);
}
static void draw_2_bitmaps(SkCanvas* canvas, const SkBitmap& bm, bool doClip,
int dx, int dy, SkImageFilter* filter = NULL) {
SkAutoCanvasRestore acr(canvas, true);
SkPaint paint;
SkRect clipR = SkRect::MakeXYWH(SkIntToScalar(dx),
SkIntToScalar(dy),
SkIntToScalar(bm.width()),
SkIntToScalar(bm.height()));
paint.setImageFilter(filter);
clipR.inset(5, 5);
if (doClip) {
canvas->save();
canvas->clipRect(clipR);
}
canvas->drawSprite(bm, dx, dy, &paint);
if (doClip) {
canvas->restore();
}
canvas->translate(SkIntToScalar(bm.width() + 20), 0);
if (doClip) {
canvas->save();
canvas->clipRect(clipR);
}
canvas->drawBitmap(bm, SkIntToScalar(dx), SkIntToScalar(dy), &paint);
if (doClip) {
canvas->restore();
}
}
/**
* Compare output of drawSprite and drawBitmap (esp. clipping and imagefilters)
*/
class SpriteBitmapGM : public skiagm::GM {
public:
SpriteBitmapGM() {}
protected:
SkString onShortName() override {
return SkString("spritebitmap");
}
SkISize onISize() override {
return SkISize::Make(640, 480);
}
void onDraw(SkCanvas* canvas) override {
SkBitmap bm;
make_bm(&bm);
int dx = 10;
int dy = 10;
SkScalar sigma = 8;
SkAutoTUnref<SkImageFilter> filter(SkBlurImageFilter::Create(sigma, sigma));
draw_2_bitmaps(canvas, bm, false, dx, dy);
dy += bm.height() + 20;
draw_2_bitmaps(canvas, bm, false, dx, dy, filter);
dy += bm.height() + 20;
draw_2_bitmaps(canvas, bm, true, dx, dy);
dy += bm.height() + 20;
draw_2_bitmaps(canvas, bm, true, dx, dy, filter);
}
private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM( return new SpriteBitmapGM; )