Robert Phillips | ec32534 | 2017-10-30 18:02:48 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 8 | #include "include/core/SkBitmap.h" |
| 9 | #include "include/core/SkColor.h" |
| 10 | #include "include/core/SkColorSpace.h" |
| 11 | #include "include/core/SkImageInfo.h" |
| 12 | #include "include/core/SkMatrix.h" |
| 13 | #include "include/core/SkPath.h" |
| 14 | #include "include/core/SkRect.h" |
| 15 | #include "include/core/SkRefCnt.h" |
| 16 | #include "include/core/SkStrokeRec.h" |
Ben Wagner | 9707a7e | 2019-05-06 17:17:19 -0400 | [diff] [blame] | 17 | #include "include/core/SkSurface.h" |
| 18 | #include "include/core/SkTypes.h" |
| 19 | #include "include/gpu/GrBackendSurface.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 20 | #include "include/gpu/GrContext.h" |
| 21 | #include "include/gpu/GrContextOptions.h" |
Ben Wagner | 9707a7e | 2019-05-06 17:17:19 -0400 | [diff] [blame] | 22 | #include "include/gpu/GrTypes.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 23 | #include "include/private/GrTypesPriv.h" |
Ben Wagner | 9707a7e | 2019-05-06 17:17:19 -0400 | [diff] [blame] | 24 | #include "include/private/SkColorData.h" |
| 25 | #include "src/gpu/GrCaps.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 26 | #include "src/gpu/GrClip.h" |
| 27 | #include "src/gpu/GrContextPriv.h" |
| 28 | #include "src/gpu/GrFragmentProcessor.h" |
Brian Salomon | f2ebdd9 | 2019-09-30 12:15:30 -0400 | [diff] [blame] | 29 | #include "src/gpu/GrImageInfo.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 30 | #include "src/gpu/GrPaint.h" |
| 31 | #include "src/gpu/GrRenderTargetContext.h" |
| 32 | #include "src/gpu/GrStyle.h" |
| 33 | #include "src/gpu/effects/generated/GrConstColorProcessor.h" |
| 34 | #include "tests/Test.h" |
| 35 | #include "tools/gpu/GrContextFactory.h" |
Ben Wagner | b5f2897 | 2018-04-17 17:42:08 -0400 | [diff] [blame] | 36 | |
Ben Wagner | d90cd3b | 2018-05-22 10:48:08 -0400 | [diff] [blame] | 37 | #include <utility> |
| 38 | |
Robert Phillips | ec32534 | 2017-10-30 18:02:48 +0000 | [diff] [blame] | 39 | static void only_allow_default(GrContextOptions* options) { |
| 40 | options->fGpuPathRenderers = GpuPathRenderers::kNone; |
| 41 | } |
| 42 | |
| 43 | static SkBitmap read_back(GrRenderTargetContext* rtc, int width, int height) { |
| 44 | |
| 45 | SkImageInfo dstII = SkImageInfo::MakeN32Premul(width, height); |
| 46 | |
| 47 | SkBitmap bm; |
| 48 | bm.allocPixels(dstII); |
| 49 | |
Brian Salomon | 1d43530 | 2019-07-01 13:05:28 -0400 | [diff] [blame] | 50 | rtc->readPixels(dstII, bm.getAddr(0, 0), bm.rowBytes(), {0, 0}); |
Robert Phillips | ec32534 | 2017-10-30 18:02:48 +0000 | [diff] [blame] | 51 | |
| 52 | return bm; |
| 53 | } |
| 54 | |
Mike Reed | 7d34dc7 | 2019-11-26 12:17:17 -0500 | [diff] [blame] | 55 | static SkPath make_path(const SkRect& outer, int inset, SkPathFillType fill) { |
Robert Phillips | ec32534 | 2017-10-30 18:02:48 +0000 | [diff] [blame] | 56 | SkPath p; |
| 57 | |
Mike Reed | 30bc527 | 2019-11-22 18:34:02 +0000 | [diff] [blame] | 58 | p.addRect(outer, SkPathDirection::kCW); |
| 59 | p.addRect(outer.makeInset(inset, inset), SkPathDirection::kCCW); |
Robert Phillips | ec32534 | 2017-10-30 18:02:48 +0000 | [diff] [blame] | 60 | p.setFillType(fill); |
| 61 | return p; |
| 62 | } |
| 63 | |
| 64 | |
| 65 | static const int kBigSize = 64; // This should be a power of 2 |
| 66 | static const int kPad = 3; |
| 67 | |
| 68 | // From crbug.com/769898: |
| 69 | // create an approx fit render target context that will have extra space (i.e., npot) |
| 70 | // draw an inverse wound concave path into it - forcing use of the stencil-using path renderer |
| 71 | // throw the RTC away so the backing GrSurface/GrStencilBuffer can be reused |
| 72 | // create a new render target context that will reuse the prior GrSurface |
| 73 | // draw a normally wound concave path that touches outside of the approx fit RTC's content rect |
| 74 | // |
| 75 | // When the bug manifests the GrDefaultPathRenderer/GrMSAAPathRenderer is/was leaving the stencil |
| 76 | // buffer outside of the first content rect in a bad state and the second draw would be incorrect. |
| 77 | |
| 78 | static void run_test(GrContext* ctx, skiatest::Reporter* reporter) { |
| 79 | SkPath invPath = make_path(SkRect::MakeXYWH(0, 0, kBigSize, kBigSize), |
Mike Reed | 7d34dc7 | 2019-11-26 12:17:17 -0500 | [diff] [blame] | 80 | kBigSize/2-1, SkPathFillType::kInverseWinding); |
Robert Phillips | ec32534 | 2017-10-30 18:02:48 +0000 | [diff] [blame] | 81 | SkPath path = make_path(SkRect::MakeXYWH(0, 0, kBigSize, kBigSize), |
Mike Reed | 7d34dc7 | 2019-11-26 12:17:17 -0500 | [diff] [blame] | 82 | kPad, SkPathFillType::kWinding); |
Robert Phillips | ec32534 | 2017-10-30 18:02:48 +0000 | [diff] [blame] | 83 | |
| 84 | GrStyle style(SkStrokeRec::kFill_InitStyle); |
| 85 | |
| 86 | { |
Greg Daniel | e20fcad | 2020-01-08 11:52:34 -0500 | [diff] [blame] | 87 | auto rtc = GrRenderTargetContext::Make( |
| 88 | ctx, GrColorType::kRGBA_8888, nullptr, SkBackingFit::kApprox, |
| 89 | {kBigSize/2 + 1, kBigSize/2 + 1}); |
Robert Phillips | ec32534 | 2017-10-30 18:02:48 +0000 | [diff] [blame] | 90 | |
Brian Osman | 9a9baae | 2018-11-05 15:06:26 -0500 | [diff] [blame] | 91 | rtc->clear(nullptr, { 0, 0, 0, 1 }, GrRenderTargetContext::CanClearFullscreen::kYes); |
Robert Phillips | ec32534 | 2017-10-30 18:02:48 +0000 | [diff] [blame] | 92 | |
| 93 | GrPaint paint; |
| 94 | |
Brian Osman | f28e55d | 2018-10-03 16:35:54 -0400 | [diff] [blame] | 95 | const SkPMColor4f color = { 1.0f, 0.0f, 0.0f, 1.0f }; |
Ethan Nicholas | e9d172a | 2017-11-20 12:12:24 -0500 | [diff] [blame] | 96 | auto fp = GrConstColorProcessor::Make(color, GrConstColorProcessor::InputMode::kIgnore); |
Robert Phillips | ec32534 | 2017-10-30 18:02:48 +0000 | [diff] [blame] | 97 | paint.addColorFragmentProcessor(std::move(fp)); |
| 98 | |
| 99 | rtc->drawPath(GrNoClip(), std::move(paint), GrAA::kNo, |
| 100 | SkMatrix::I(), invPath, style); |
| 101 | |
Greg Daniel | e6bfb7d | 2019-04-17 15:26:11 -0400 | [diff] [blame] | 102 | rtc->flush(SkSurface::BackendSurfaceAccess::kNoAccess, GrFlushInfo()); |
Robert Phillips | ec32534 | 2017-10-30 18:02:48 +0000 | [diff] [blame] | 103 | } |
| 104 | |
| 105 | { |
Greg Daniel | e20fcad | 2020-01-08 11:52:34 -0500 | [diff] [blame] | 106 | auto rtc = GrRenderTargetContext::Make( |
| 107 | ctx, GrColorType::kRGBA_8888, nullptr, SkBackingFit::kExact, {kBigSize, kBigSize}); |
Robert Phillips | ec32534 | 2017-10-30 18:02:48 +0000 | [diff] [blame] | 108 | |
Brian Osman | 9a9baae | 2018-11-05 15:06:26 -0500 | [diff] [blame] | 109 | rtc->clear(nullptr, { 0, 0, 0, 1 }, GrRenderTargetContext::CanClearFullscreen::kYes); |
Robert Phillips | ec32534 | 2017-10-30 18:02:48 +0000 | [diff] [blame] | 110 | |
| 111 | GrPaint paint; |
| 112 | |
Brian Osman | f28e55d | 2018-10-03 16:35:54 -0400 | [diff] [blame] | 113 | const SkPMColor4f color = { 0.0f, 1.0f, 0.0f, 1.0f }; |
Ethan Nicholas | e9d172a | 2017-11-20 12:12:24 -0500 | [diff] [blame] | 114 | auto fp = GrConstColorProcessor::Make(color, GrConstColorProcessor::InputMode::kIgnore); |
Robert Phillips | ec32534 | 2017-10-30 18:02:48 +0000 | [diff] [blame] | 115 | paint.addColorFragmentProcessor(std::move(fp)); |
| 116 | |
| 117 | rtc->drawPath(GrNoClip(), std::move(paint), GrAA::kNo, |
| 118 | SkMatrix::I(), path, style); |
| 119 | |
| 120 | SkBitmap bm = read_back(rtc.get(), kBigSize, kBigSize); |
| 121 | |
| 122 | bool correct = true; |
| 123 | for (int y = kBigSize/2+1; y < kBigSize-kPad-1 && correct; ++y) { |
| 124 | for (int x = kPad+1; x < kBigSize-kPad-1 && correct; ++x) { |
| 125 | correct = bm.getColor(x, y) == SK_ColorBLACK; |
| 126 | REPORTER_ASSERT(reporter, correct); |
| 127 | } |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | } |
| 132 | |
| 133 | DEF_GPUTEST_FOR_CONTEXTS(GrDefaultPathRendererTest, |
| 134 | sk_gpu_test::GrContextFactory::IsRenderingContext, |
| 135 | reporter, ctxInfo, only_allow_default) { |
| 136 | GrContext* ctx = ctxInfo.grContext(); |
| 137 | |
| 138 | run_test(ctx, reporter); |
| 139 | } |