83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
/*
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* Copyright 2020 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/gm.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkPath.h"
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static void draw_sqooshed_rect(SkCanvas* canvas, SkVector xlate, const SkPaint& p) {
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canvas->save();
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canvas->translate(xlate.fX, xlate.fY);
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canvas->scale(0.03f, 2.0f);
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canvas->drawRect(SkRect::MakeLTRB(-500, -10, 500, 10), p);
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canvas->restore();
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}
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/*
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* This GM is intended to wring out any lingering anisotropic
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* stroke rect bugs. It contains a repro case for crbug.com/935303
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* The pattern is:
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*
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* miter @ miter @ bevel @ bevel @
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* whole pixels half pixels whole pixels half pixels
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*
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* AA
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*
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* non-AA
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*
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*/
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class StrokeRectAnisotropicGM : public skiagm::GM {
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public:
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StrokeRectAnisotropicGM() {}
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protected:
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SkString onShortName() override {
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return SkString("strokerect_anisotropic");
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}
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SkISize onISize() override {
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return SkISize::Make(160, 160);
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}
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void onDraw(SkCanvas* canvas) override {
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SkPaint aaPaint;
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aaPaint.setColor(SkColorSetARGB(255, 0, 0, 0));
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aaPaint.setAntiAlias(true);
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aaPaint.setStrokeWidth(10);
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aaPaint.setStyle(SkPaint::kStroke_Style);
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SkPaint bwPaint;
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bwPaint.setColor(SkColorSetARGB(255, 0, 0, 0));
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bwPaint.setStrokeWidth(10);
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bwPaint.setStyle(SkPaint::kStroke_Style);
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// The two miter columns
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draw_sqooshed_rect(canvas, { 20.0f, 40.5f }, aaPaint); // whole pixels
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draw_sqooshed_rect(canvas, { 20.0f, 110.5f }, bwPaint); // whole pixels
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draw_sqooshed_rect(canvas, { 60.5f, 40.0f }, aaPaint); // half pixels
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draw_sqooshed_rect(canvas, { 60.5f, 110.0f }, bwPaint); // half pixels
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aaPaint.setStrokeJoin(SkPaint::kBevel_Join);
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bwPaint.setStrokeJoin(SkPaint::kBevel_Join);
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// The two bevel columns
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draw_sqooshed_rect(canvas, { 100.0f, 40.5f }, aaPaint); // whole pixels
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draw_sqooshed_rect(canvas, { 100.0f, 110.5f }, bwPaint); // whole pixels
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draw_sqooshed_rect(canvas, { 140.5f, 40.0f }, aaPaint); // half pixels
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draw_sqooshed_rect(canvas, { 140.5f, 110.0f }, bwPaint); // half pixels
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}
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private:
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using INHERITED = GM;
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};
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DEF_GM(return new StrokeRectAnisotropicGM;)
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