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- /*
- * Copyright 2013 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/SkBlendMode.h"
- #include "include/core/SkBlurTypes.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkColor.h"
- #include "include/core/SkColorFilter.h"
- #include "include/core/SkDrawLooper.h"
- #include "include/core/SkMaskFilter.h"
- #include "include/core/SkMatrix.h"
- #include "include/core/SkPaint.h"
- #include "include/core/SkPoint.h"
- #include "include/core/SkRRect.h"
- #include "include/core/SkRect.h"
- #include "include/core/SkRefCnt.h"
- #include "include/core/SkScalar.h"
- #include "include/core/SkShader.h"
- #include "include/core/SkSize.h"
- #include "include/core/SkString.h"
- #include "include/core/SkTileMode.h"
- #include "include/core/SkTypes.h"
- #include "include/effects/SkGradientShader.h"
- #include "include/effects/SkLayerDrawLooper.h"
- #include "src/core/SkBlurMask.h"
- #ifdef SK_SUPPORT_LEGACY_DRAWLOOPER
- // This GM mimics a blurred RR seen in the wild.
- class BlurRoundRectGM : public skiagm::GM {
- public:
- BlurRoundRectGM(int w, int h) : fWidth(w), fHeight(h) {}
- private:
- SkString onShortName() override {
- return SkStringPrintf("blurroundrect-WH-%ix%i-unevenCorners", fWidth, fHeight);
- }
- SkISize onISize() override { return {fWidth, fHeight}; }
- void onOnceBeforeDraw() override {
- SkVector radii[4];
- radii[0].set(SkIntToScalar(30), SkIntToScalar(30));
- radii[1].set(SkIntToScalar(10), SkIntToScalar(10));
- radii[2].set(SkIntToScalar(30), SkIntToScalar(30));
- radii[3].set(SkIntToScalar(10), SkIntToScalar(10));
- SkRect r = SkRect::MakeWH(SkIntToScalar(fWidth), SkIntToScalar(fHeight));
- fRRect.setRectRadii(r, radii);
- }
- void onDraw(SkCanvas* canvas) override {
- SkLayerDrawLooper::Builder looperBuilder;
- {
- SkLayerDrawLooper::LayerInfo info;
- info.fPaintBits = SkLayerDrawLooper::kMaskFilter_Bit
- | SkLayerDrawLooper::kColorFilter_Bit;
- info.fColorMode = SkBlendMode::kSrc;
- info.fOffset = SkPoint::Make(SkIntToScalar(-1), SkIntToScalar(0));
- info.fPostTranslate = false;
- SkPaint* paint = looperBuilder.addLayerOnTop(info);
- paint->setMaskFilter(SkMaskFilter::MakeBlur(
- kNormal_SkBlurStyle,
- SkBlurMask::ConvertRadiusToSigma(SK_ScalarHalf)));
- paint->setColorFilter(SkColorFilters::Blend(SK_ColorLTGRAY, SkBlendMode::kSrcIn));
- paint->setColor(SK_ColorGRAY);
- }
- {
- SkLayerDrawLooper::LayerInfo info;
- looperBuilder.addLayerOnTop(info);
- }
- SkPaint paint;
- canvas->drawRect(fRRect.rect(), paint);
- paint.setLooper(looperBuilder.detach());
- paint.setColor(SK_ColorCYAN);
- paint.setAntiAlias(true);
- canvas->drawRRect(fRRect, paint);
- }
- SkRRect fRRect;
- int fWidth, fHeight;
- };
- // Rounded rect with two opposite corners with large radii, the other two
- // small.
- DEF_GM(return new BlurRoundRectGM(100, 100);)
- #endif
- /*
- * Spits out a dummy gradient to test blur with shader on paint
- */
- static sk_sp<SkShader> MakeRadial() {
- SkPoint pts[2] = {
- { 0, 0 },
- { SkIntToScalar(100), SkIntToScalar(100) }
- };
- SkTileMode tm = SkTileMode::kClamp;
- const SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, };
- const SkScalar pos[] = { SK_Scalar1/4, SK_Scalar1*3/4 };
- SkMatrix scale;
- scale.setScale(0.5f, 0.5f);
- scale.postTranslate(5.f, 5.f);
- SkPoint center0, center1;
- center0.set(SkScalarAve(pts[0].fX, pts[1].fX),
- SkScalarAve(pts[0].fY, pts[1].fY));
- center1.set(SkScalarInterp(pts[0].fX, pts[1].fX, SkIntToScalar(3)/5),
- SkScalarInterp(pts[0].fY, pts[1].fY, SkIntToScalar(1)/4));
- return SkGradientShader::MakeTwoPointConical(center1, (pts[1].fX - pts[0].fX) / 7,
- center0, (pts[1].fX - pts[0].fX) / 2,
- colors, pos, SK_ARRAY_COUNT(colors), tm,
- 0, &scale);
- }
- // Simpler blurred RR test cases where all the radii are the same.
- class SimpleBlurRoundRectGM : public skiagm::GM {
- SkString onShortName() override { return SkString("simpleblurroundrect"); }
- SkISize onISize() override { return {1000, 500}; }
- void onDraw(SkCanvas* canvas) override {
- canvas->scale(1.5f, 1.5f);
- canvas->translate(50,50);
- const float blurRadii[] = { 1,5,10,20 };
- const int cornerRadii[] = { 1,5,10,20 };
- const SkRect r = SkRect::MakeWH(SkIntToScalar(25), SkIntToScalar(25));
- for (size_t i = 0; i < SK_ARRAY_COUNT(blurRadii); ++i) {
- SkAutoCanvasRestore autoRestore(canvas, true);
- canvas->translate(0, (r.height() + SkIntToScalar(50)) * i);
- for (size_t j = 0; j < SK_ARRAY_COUNT(cornerRadii); ++j) {
- for (int k = 0; k <= 1; k++) {
- SkPaint paint;
- paint.setColor(SK_ColorBLACK);
- paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle,
- SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(blurRadii[i]))));
- bool useRadial = SkToBool(k);
- if (useRadial) {
- paint.setShader(MakeRadial());
- }
- SkRRect rrect;
- rrect.setRectXY(r, SkIntToScalar(cornerRadii[j]),
- SkIntToScalar(cornerRadii[j]));
- canvas->drawRRect(rrect, paint);
- canvas->translate(r.width() + SkIntToScalar(50), 0);
- }
- }
- }
- }
- };
- // Create one with dimensions/rounded corners based on the skp
- //
- // TODO(scroggo): Disabled in an attempt to rememdy
- // https://code.google.com/p/skia/issues/detail?id=1801 ('Win7 Test bots all failing GenerateGMs:
- // ran wrong number of tests')
- //DEF_GM(return new BlurRoundRectGM(600, 5514, 6);)
- DEF_GM(return new SimpleBlurRoundRectGM();)
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