| /* |
| * 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 "SkColorFilter.h" |
| #include "SkMaskFilter.h" |
| #include "SkPath.h" |
| #include "ToolUtils.h" |
| #include "gm.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(SkColorFilter::MakeModeFilter(0xBFFFFFFF, SkBlendMode::kSrcIn)); |
| |
| canvas->clipPath(clipPath, true); |
| canvas->drawPath(drawPath, paint); |
| } |