blob: 81fb3e72be5d0ba972c0616510c32c737473504b [file] [log] [blame]
/*
* Copyright 2023 Google LLC
*
* 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/SkCanvas.h"
#include "include/core/SkPaint.h"
#include "include/core/SkRect.h"
#include "include/core/SkString.h"
namespace skiagm {
// From crbug.com/1442854. Draws two rects (equivalent in device space) but which vary wildly
// in their sizes and scales. In both cases the clip is what is actually determining the
// final drawn geometry. For the red rectangle case the inverted skews were becoming very small and
// ran afoul of some logic in the DMSAA code that zeroed them out.
class ScaledRectsGM : public GM {
public:
ScaledRectsGM() {
this->setBGColor(0xFFCCCCCC);
}
protected:
SkString onShortName() override {
return SkString("scaledrects");
}
SkISize onISize() override {
return SkISize::Make(128, 64);
}
void onDraw(SkCanvas* canvas) override {
canvas->clipRect(SkRect::MakeXYWH(10, 50, 100, 10));
{
SkPaint blue;
blue.setColor(SK_ColorBLUE);
canvas->setMatrix(SkMatrix::MakeAll( 3.0f, -0.5f, 0.0f,
-0.5f, -3.0f, 0.0f,
0.0f, 0.0f, 1.0f));
canvas->drawRect(SkRect::MakeXYWH(-1000, -1000, 2000, 2000), blue);
}
{
SkPaint red;
red.setColor(SK_ColorRED);
red.setBlendMode(SkBlendMode::kPlus);
canvas->setMatrix(SkMatrix::MakeAll(3000.0f, -500.0f, 0.0f,
-500.0f, -3000.0f, 0.0f,
0.0f, 0.0f, 1.0f));
canvas->drawRect(SkRect::MakeXYWH(-1, -1, 2, 2), red);
}
}
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return new ScaledRectsGM;)
} // namespace skiagm