| /* |
| * Copyright 2015 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/SkBitmap.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkMatrix.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkShader.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkString.h" |
| #include "include/private/base/SkTArray.h" |
| |
| using namespace skia_private; |
| |
| /** This GM draws with invalid paints. It should draw nothing other than the background. */ |
| class BadPaintGM : public skiagm::GM { |
| public: |
| BadPaintGM() {} |
| |
| protected: |
| SkString getName() const override { return SkString("badpaint"); } |
| |
| SkISize getISize() override { return SkISize::Make(100, 100); } |
| |
| void onOnceBeforeDraw() override { |
| SkBitmap emptyBmp; |
| |
| SkBitmap blueBmp; |
| blueBmp.allocN32Pixels(10, 10); |
| blueBmp.eraseColor(SK_ColorBLUE); |
| |
| SkMatrix badMatrix; |
| badMatrix.setAll(0, 0, 0, 0, 0, 0, 0, 0, 0); |
| |
| // Empty bitmap. |
| fPaints.push_back().setColor(SK_ColorGREEN); |
| fPaints.back().setShader(emptyBmp.makeShader(SkSamplingOptions())); |
| |
| // Non-invertible local matrix. |
| fPaints.push_back().setColor(SK_ColorGREEN); |
| fPaints.back().setShader(blueBmp.makeShader(SkSamplingOptions(), badMatrix)); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| SkRect rect = SkRect::MakeXYWH(10, 10, 80, 80); |
| for (int i = 0; i < fPaints.size(); ++i) { |
| canvas->drawRect(rect, fPaints[i]); |
| } |
| } |
| |
| private: |
| TArray<SkPaint> fPaints; |
| |
| using INHERITED = skiagm::GM; |
| }; |
| |
| ///////////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM(return new BadPaintGM;) |