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- /*
- * Copyright 2016 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/SkColorPriv.h"
- #include "include/core/SkFilterQuality.h"
- #include "include/core/SkImage.h"
- #include "include/core/SkImageInfo.h"
- #include "include/core/SkMatrix.h"
- #include "include/core/SkPaint.h"
- #include "include/core/SkRect.h"
- #include "include/core/SkRefCnt.h"
- #include "include/core/SkShader.h"
- #include "include/core/SkSize.h"
- #include "include/core/SkString.h"
- #include "include/core/SkTileMode.h"
- static const sk_sp<SkImage> make_image(int firstBlackRow, int lastBlackRow) {
- static const int kWidth = 25;
- static const int kHeight = 27;
- SkBitmap bm;
- bm.allocN32Pixels(kWidth, kHeight);
- bm.eraseColor(SK_ColorWHITE);
- for (int y = firstBlackRow; y < lastBlackRow; ++y) {
- for (int x = 0; x < kWidth; ++x) {
- *bm.getAddr32(x, y) = SkPackARGB32(0xFF, 0x0, 0x0, 0x0);
- }
- }
- bm.setAlphaType(SkAlphaType::kOpaque_SkAlphaType);
- bm.setImmutable();
- return SkImage::MakeFromBitmap(bm);
- }
- // GM to reproduce crbug.com/673261.
- class FilterBugGM : public skiagm::GM {
- public:
- FilterBugGM() { this->setBGColor(SK_ColorRED); }
- protected:
- SkString onShortName() override { return SkString("filterbug"); }
- SkISize onISize() override { return SkISize::Make(150, 150); }
- void onOnceBeforeDraw() override {
- // The top texture has 5 black rows on top and then 22 white rows on the bottom
- fTop = make_image(0, 5);
- // The bottom texture has 5 black rows on the bottom and then 22 white rows on the top
- fBot = make_image(22, 27);
- }
- void onDraw(SkCanvas* canvas) override {
- static const SkFilterQuality kFilterQuality = SkFilterQuality::kHigh_SkFilterQuality;
- static const bool kDoAA = true;
- {
- SkRect r1 = SkRect::MakeXYWH(50.0f, 0.0f, 50.0f, 50.0f);
- SkPaint p1;
- p1.setAntiAlias(kDoAA);
- p1.setFilterQuality(kFilterQuality);
- SkMatrix localMat;
- localMat.setScaleTranslate(2.0f, 2.0f, 50.0f, 0.0f);
- p1.setShader(fTop->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat, &localMat));
- canvas->drawRect(r1, p1);
- }
- {
- SkRect r2 = SkRect::MakeXYWH(50.0f, 50.0f, 50.0f, 36.0f);
- SkPaint p2;
- p2.setColor(SK_ColorWHITE);
- p2.setAntiAlias(kDoAA);
- p2.setFilterQuality(kFilterQuality);
- canvas->drawRect(r2, p2);
- }
- {
- SkRect r3 = SkRect::MakeXYWH(50.0f, 86.0f, 50.0f, 50.0f);
- SkPaint p3;
- p3.setAntiAlias(kDoAA);
- p3.setFilterQuality(kFilterQuality);
- SkMatrix localMat;
- localMat.setScaleTranslate(2.0f, 2.0f, 50.0f, 86.0f);
- p3.setShader(fBot->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat, &localMat));
- canvas->drawRect(r3, p3);
- }
- }
- private:
- sk_sp<SkImage> fTop;
- sk_sp<SkImage> fBot;
- typedef skiagm::GM INHERITED;
- };
- //////////////////////////////////////////////////////////////////////////////
- DEF_GM(return new FilterBugGM;)
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