skia2/gm/badpaint.cpp
Mike Reed 82abeceef9 Bitmap should use sampling options
Change-Id: I611969d4707009411f20b74debad7655ac364eb8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/343596
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
2020-12-12 15:36:21 +00:00

65 lines
1.8 KiB
C++

/*
* 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/gm.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPaint.h"
#include "include/core/SkRect.h"
#include "include/core/SkShader.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/private/SkTArray.h"
/** This GM draws with invalid paints. It should draw nothing other than the background. */
class BadPaintGM : public skiagm::GM {
public:
BadPaintGM() {}
protected:
SkString onShortName() override { return SkString("badpaint"); }
SkISize onISize() override { return SkISize::Make(100, 100); }
void onOnceBeforeDraw() override {
SkBitmap emptyBmp;
SkBitmap blueBmp;
blueBmp.allocN32Pixels(10, 10);
blueBmp.eraseColor(SK_ColorBLUE);
SkMatrix badMatrix;
badMatrix.setAll(0, 0, 0, 0, 0, 0, 0, 0, 0);
// Empty bitmap.
fPaints.push_back().setColor(SK_ColorGREEN);
fPaints.back().setShader(emptyBmp.makeShader(SkSamplingOptions()));
// Non-invertible local matrix.
fPaints.push_back().setColor(SK_ColorGREEN);
fPaints.back().setShader(blueBmp.makeShader(SkSamplingOptions(), badMatrix));
}
void onDraw(SkCanvas* canvas) override {
SkRect rect = SkRect::MakeXYWH(10, 10, 80, 80);
for (int i = 0; i < fPaints.count(); ++i) {
canvas->drawRect(rect, fPaints[i]);
}
}
private:
SkTArray<SkPaint> fPaints;
using INHERITED = skiagm::GM;
};
/////////////////////////////////////////////////////////////////////////////////////
DEF_GM(return new BadPaintGM;)