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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/SkColorFilter.h"
- #include "include/core/SkMaskFilter.h"
- #include "include/core/SkPaint.h"
- #include "include/core/SkPath.h"
- #include "include/core/SkScalar.h"
- /**
- * This test exercises bug 1719. An anti-aliased blurred path is rendered through a soft clip. On
- * the GPU a scratch texture was used to hold the original path mask as well as the blurred path
- * result. The same texture is then incorrectly used to generate the soft clip mask for the draw.
- * Thus the same texture is used for both the blur mask and soft mask in a single draw.
- *
- * The correct image should look like a thin stroked round rect.
- */
- DEF_SIMPLE_GM_BG(skbug1719, canvas, 300, 100, 0xFF303030) {
- canvas->translate(SkIntToScalar(-800), SkIntToScalar(-650));
- // The data is lifted from an SKP that exhibited the bug.
- // This is a round rect.
- SkPath clipPath;
- clipPath.moveTo(832.f, 654.f);
- clipPath.lineTo(1034.f, 654.f);
- clipPath.cubicTo(1038.4183f, 654.f, 1042.f, 657.58173f, 1042.f, 662.f);
- clipPath.lineTo(1042.f, 724.f);
- clipPath.cubicTo(1042.f, 728.41827f, 1038.4183f, 732.f, 1034.f, 732.f);
- clipPath.lineTo(832.f, 732.f);
- clipPath.cubicTo(827.58173f, 732.f, 824.f, 728.41827f, 824.f, 724.f);
- clipPath.lineTo(824.f, 662.f);
- clipPath.cubicTo(824.f, 657.58173f, 827.58173f, 654.f, 832.f, 654.f);
- clipPath.close();
- // This is a round rect nested inside a rect.
- SkPath drawPath;
- drawPath.moveTo(823.f, 653.f);
- drawPath.lineTo(1043.f, 653.f);
- drawPath.lineTo(1043.f, 733.f);
- drawPath.lineTo(823.f, 733.f);
- drawPath.lineTo(823.f, 653.f);
- drawPath.close();
- drawPath.moveTo(832.f, 654.f);
- drawPath.lineTo(1034.f, 654.f);
- drawPath.cubicTo(1038.4183f, 654.f, 1042.f, 657.58173f, 1042.f, 662.f);
- drawPath.lineTo(1042.f, 724.f);
- drawPath.cubicTo(1042.f, 728.41827f, 1038.4183f, 732.f, 1034.f, 732.f);
- drawPath.lineTo(832.f, 732.f);
- drawPath.cubicTo(827.58173f, 732.f, 824.f, 728.41827f, 824.f, 724.f);
- drawPath.lineTo(824.f, 662.f);
- drawPath.cubicTo(824.f, 657.58173f, 827.58173f, 654.f, 832.f, 654.f);
- drawPath.close();
- drawPath.setFillType(SkPath::kEvenOdd_FillType);
- SkPaint paint;
- paint.setAntiAlias(true);
- paint.setColor(0xFF000000);
- paint.setMaskFilter(
- SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, 0.78867501f));
- paint.setColorFilter(SkColorFilters::Blend(0xBFFFFFFF, SkBlendMode::kSrcIn));
- canvas->clipPath(clipPath, true);
- canvas->drawPath(drawPath, paint);
- }
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