blob: b4de6e2a48020bb56da9055008f4abde1f0d1056 [file] [log] [blame]
/*
* 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/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 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 bm.asImage();
}
// GM to reproduce crbug.com/673261.
class FilterBugGM : public skiagm::GM {
public:
FilterBugGM() { this->setBGColor(SK_ColorRED); }
protected:
SkString getName() const override { return SkString("filterbug"); }
SkISize getISize() 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 SkSamplingOptions kSampling(SkCubicResampler::Mitchell());
static const bool kDoAA = true;
{
SkRect r1 = SkRect::MakeXYWH(50.0f, 0.0f, 50.0f, 50.0f);
SkPaint p1;
p1.setAntiAlias(kDoAA);
SkMatrix localMat;
localMat.setScaleTranslate(2.0f, 2.0f, 50.0f, 0.0f);
p1.setShader(fTop->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat,
kSampling, &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);
canvas->drawRect(r2, p2);
}
{
SkRect r3 = SkRect::MakeXYWH(50.0f, 86.0f, 50.0f, 50.0f);
SkPaint p3;
p3.setAntiAlias(kDoAA);
SkMatrix localMat;
localMat.setScaleTranslate(2.0f, 2.0f, 50.0f, 86.0f);
p3.setShader(fBot->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat,
kSampling, &localMat));
canvas->drawRect(r3, p3);
}
}
private:
sk_sp<SkImage> fTop;
sk_sp<SkImage> fBot;
using INHERITED = skiagm::GM;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return new FilterBugGM;)