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81 lines
2.1 KiB
81 lines
2.1 KiB
4 months ago
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/*
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* Copyright 2014 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 "DecodeFile.h"
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#include "Resources.h"
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#include "Sample.h"
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#include "SkBlurMaskFilter.h"
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#include "SkCanvas.h"
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#include "SkColorPriv.h"
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#include "SkFont.h"
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#include "SkPath.h"
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#include "SkRandom.h"
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#include "SkStream.h"
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#include "SkTime.h"
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#include "SkClipOpPriv.h"
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// Intended to exercise pixel snapping observed with scaled images (and
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// with non-scaled images, but for a different reason): Bug 1145
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class IdentityScaleView : public Sample {
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public:
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IdentityScaleView(const char imageFilename[]) {
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if (!DecodeDataToBitmap(GetResourceAsData(imageFilename), &fBM)) {
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fBM.allocN32Pixels(1, 1);
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*(fBM.getAddr32(0,0)) = 0xFF0000FF; // red == bad
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}
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}
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protected:
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SkBitmap fBM;
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bool onQuery(Sample::Event* evt) override {
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if (Sample::TitleQ(*evt)) {
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Sample::TitleR(evt, "IdentityScale");
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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void onDrawContent(SkCanvas* canvas) override {
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SkFont font(nullptr, 48);
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setFilterQuality(kHigh_SkFilterQuality);
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SkTime::DateTime time;
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SkTime::GetDateTime(&time);
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bool use_scale = (time.fSecond % 2 == 1);
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const char *text;
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canvas->save();
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if (use_scale) {
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text = "Scaled = 1";
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} else {
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SkRect r = { 100, 100, 356, 356 };
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SkPath clipPath;
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clipPath.addRoundRect(r, SkIntToScalar(5), SkIntToScalar(5));
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canvas->clipPath(clipPath, kIntersect_SkClipOp, true);
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text = "Scaled = 0";
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}
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canvas->drawBitmap( fBM, 100, 100, &paint );
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canvas->restore();
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canvas->drawString(text, 100, 400, font, paint);
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}
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private:
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typedef Sample INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_SAMPLE( return new IdentityScaleView("images/mandrill_256.png"); )
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