зеркало из https://github.com/mozilla/moz-skia.git
103 строки
2.5 KiB
C++
103 строки
2.5 KiB
C++
/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm.h"
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#include "SkCanvas.h"
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#include "SkBlurImageFilter.h"
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static void make_bm(SkBitmap* bm) {
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bm->allocN32Pixels(100, 100);
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bm->eraseColor(SK_ColorBLUE);
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SkCanvas canvas(*bm);
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(SK_ColorRED);
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canvas.drawCircle(50, 50, 50, paint);
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}
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static void draw_2_bitmaps(SkCanvas* canvas, const SkBitmap& bm, bool doClip,
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int dx, int dy, SkImageFilter* filter = NULL) {
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SkAutoCanvasRestore acr(canvas, true);
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SkPaint paint;
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SkRect clipR = SkRect::MakeXYWH(SkIntToScalar(dx),
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SkIntToScalar(dy),
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SkIntToScalar(bm.width()),
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SkIntToScalar(bm.height()));
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paint.setImageFilter(filter);
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clipR.inset(5, 5);
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if (doClip) {
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canvas->save();
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canvas->clipRect(clipR);
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}
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canvas->drawSprite(bm, dx, dy, &paint);
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if (doClip) {
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canvas->restore();
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}
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canvas->translate(SkIntToScalar(bm.width() + 20), 0);
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if (doClip) {
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canvas->save();
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canvas->clipRect(clipR);
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}
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canvas->drawBitmap(bm, SkIntToScalar(dx), SkIntToScalar(dy), &paint);
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if (doClip) {
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canvas->restore();
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}
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}
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/**
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* Compare output of drawSprite and drawBitmap (esp. clipping and imagefilters)
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*/
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class SpriteBitmapGM : public skiagm::GM {
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public:
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SpriteBitmapGM() {}
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protected:
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virtual uint32_t onGetFlags() const SK_OVERRIDE {
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return kSkipTiled_Flag;
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}
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virtual SkString onShortName() {
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return SkString("spritebitmap");
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}
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virtual SkISize onISize() {
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return SkISize::Make(640, 480);
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}
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virtual void onDraw(SkCanvas* canvas) {
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SkBitmap bm;
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make_bm(&bm);
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int dx = 10;
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int dy = 10;
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SkScalar sigma = 8;
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SkAutoTUnref<SkImageFilter> filter(SkBlurImageFilter::Create(sigma, sigma));
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draw_2_bitmaps(canvas, bm, false, dx, dy);
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dy += bm.height() + 20;
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draw_2_bitmaps(canvas, bm, false, dx, dy, filter);
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dy += bm.height() + 20;
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draw_2_bitmaps(canvas, bm, true, dx, dy);
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dy += bm.height() + 20;
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draw_2_bitmaps(canvas, bm, true, dx, dy, filter);
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}
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private:
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_GM( return new SpriteBitmapGM; )
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