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Diffstat (limited to 'gm/drawfilter.cpp')
-rw-r--r-- | gm/drawfilter.cpp | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/gm/drawfilter.cpp b/gm/drawfilter.cpp new file mode 100644 index 0000000000..85bec15130 --- /dev/null +++ b/gm/drawfilter.cpp @@ -0,0 +1,71 @@ +/* + * 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.h" +#include "SkBlurMask.h" +#include "SkBlurMaskFilter.h" +#include "SkCanvas.h" +#include "SkDrawFilter.h" +#include "SkPaint.h" + +/** + * Initial test coverage for SkDrawFilter. + * Draws two rectangles; if draw filters are broken, they will match. + * If draw filters are working correctly, the first will be blue and blurred, + * the second red and sharp. + */ + +class TestFilter : public SkDrawFilter { +public: + bool filter(SkPaint* p, Type) SK_OVERRIDE { + p->setColor(SK_ColorRED); + p->setMaskFilter(NULL); + return true; + } +}; + +class DrawFilterGM : public skiagm::GM { + SkAutoTUnref<SkMaskFilter> fBlur; + +protected: + SkISize onISize() SK_OVERRIDE { + return SkISize::Make(320, 240); + } + + SkString onShortName() SK_OVERRIDE { + return SkString("drawfilter"); + } + + void onOnceBeforeDraw() SK_OVERRIDE { + fBlur.reset(SkBlurMaskFilter::Create(kNormal_SkBlurStyle, + SkBlurMask::ConvertRadiusToSigma(10.0f), + kLow_SkBlurQuality)); + } + + void onDraw(SkCanvas* canvas) SK_OVERRIDE { + SkPaint p; + p.setColor(SK_ColorBLUE); + p.setMaskFilter(fBlur.get()); + SkRect r = { 20, 20, 100, 100 }; + canvas->setDrawFilter(NULL); + canvas->drawRect(r, p); + TestFilter redNoBlur; + canvas->setDrawFilter(&redNoBlur); + canvas->translate(120.0f, 40.0f); + canvas->drawRect(r, p); + + // Must unset if the DrawFilter is from the stack to avoid refcount errors! + canvas->setDrawFilter(NULL); + } + +private: + typedef GM INHERITED; +}; + +static skiagm::GM* MyFactory(void*) { return new DrawFilterGM; } +static skiagm::GMRegistry reg(MyFactory); + |