| /* |
| * Copyright 2020 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm/gm.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkPath.h" |
| |
| static void draw_sqooshed_rect(SkCanvas* canvas, SkVector xlate, const SkPaint& p) { |
| canvas->save(); |
| canvas->translate(xlate.fX, xlate.fY); |
| canvas->scale(0.03f, 2.0f); |
| canvas->drawRect(SkRect::MakeLTRB(-500, -10, 500, 10), p); |
| canvas->restore(); |
| } |
| |
| /* |
| * This GM is intended to wring out any lingering anisotropic |
| * stroke rect bugs. It contains a repro case for crbug.com/935303 |
| * The pattern is: |
| * |
| * miter @ miter @ bevel @ bevel @ |
| * whole pixels half pixels whole pixels half pixels |
| * |
| * AA |
| * |
| * non-AA |
| * |
| */ |
| class StrokeRectAnisotropicGM : public skiagm::GM { |
| public: |
| StrokeRectAnisotropicGM() {} |
| |
| protected: |
| SkString getName() const override { return SkString("strokerect_anisotropic"); } |
| |
| SkISize getISize() override { return SkISize::Make(160, 160); } |
| |
| void onDraw(SkCanvas* canvas) override { |
| |
| SkPaint aaPaint; |
| aaPaint.setColor(SkColorSetARGB(255, 0, 0, 0)); |
| aaPaint.setAntiAlias(true); |
| aaPaint.setStrokeWidth(10); |
| aaPaint.setStyle(SkPaint::kStroke_Style); |
| |
| SkPaint bwPaint; |
| bwPaint.setColor(SkColorSetARGB(255, 0, 0, 0)); |
| bwPaint.setStrokeWidth(10); |
| bwPaint.setStyle(SkPaint::kStroke_Style); |
| |
| // The two miter columns |
| draw_sqooshed_rect(canvas, { 20.0f, 40.5f }, aaPaint); // whole pixels |
| draw_sqooshed_rect(canvas, { 20.0f, 110.5f }, bwPaint); // whole pixels |
| |
| draw_sqooshed_rect(canvas, { 60.5f, 40.0f }, aaPaint); // half pixels |
| draw_sqooshed_rect(canvas, { 60.5f, 110.0f }, bwPaint); // half pixels |
| |
| aaPaint.setStrokeJoin(SkPaint::kBevel_Join); |
| bwPaint.setStrokeJoin(SkPaint::kBevel_Join); |
| |
| // The two bevel columns |
| draw_sqooshed_rect(canvas, { 100.0f, 40.5f }, aaPaint); // whole pixels |
| draw_sqooshed_rect(canvas, { 100.0f, 110.5f }, bwPaint); // whole pixels |
| |
| draw_sqooshed_rect(canvas, { 140.5f, 40.0f }, aaPaint); // half pixels |
| draw_sqooshed_rect(canvas, { 140.5f, 110.0f }, bwPaint); // half pixels |
| } |
| |
| private: |
| using INHERITED = GM; |
| }; |
| DEF_GM(return new StrokeRectAnisotropicGM;) |
| |