bsalomon | 6d6b6ad | 2016-07-13 14:45:28 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2016 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 | |
| 8 | #include "Test.h" |
| 9 | |
| 10 | #if SK_SUPPORT_GPU |
| 11 | #include "GrContext.h" |
| 12 | #include "GrTest.h" |
| 13 | #include "batches/GrAADistanceFieldPathRenderer.h" |
| 14 | #include "SkPath.h" |
| 15 | |
| 16 | // This test case including path coords and matrix taken from crbug.com/627443. |
| 17 | // Because of inaccuracies in large floating point values this causes the |
| 18 | // the path renderer to attempt to add a path DF to its atlas that is larger |
| 19 | // than the plot size which used to crash rather than fail gracefully. |
| 20 | static void test_far_from_origin(GrDrawContext* drawContext, GrPathRenderer* pr, |
| 21 | GrResourceProvider* rp) { |
| 22 | SkPath path; |
| 23 | path.lineTo(49.0255089839f, 0.473541f); |
| 24 | static constexpr SkScalar mvals[] = {14.0348252854f, 2.13026182736f, |
| 25 | 13.6122547187f, 118.309922702f, |
| 26 | 1912337682.09f, 2105391889.87f}; |
| 27 | SkMatrix matrix; |
| 28 | matrix.setAffine(mvals); |
| 29 | SkMatrix inverse; |
| 30 | SkAssertResult(matrix.invert(&inverse)); |
| 31 | path.transform(inverse); |
| 32 | |
| 33 | SkStrokeRec rec(SkStrokeRec::kFill_InitStyle); |
| 34 | rec.setStrokeStyle(1.f); |
| 35 | rec.setStrokeParams(SkPaint::kRound_Cap, SkPaint::kRound_Join, 1.f); |
| 36 | GrStyle style(rec, nullptr); |
| 37 | |
| 38 | GrShape shape(path, style); |
| 39 | shape = shape.applyStyle(GrStyle::Apply::kPathEffectAndStrokeRec, 1.f); |
| 40 | |
| 41 | GrPaint paint; |
| 42 | paint.setXPFactory(GrPorterDuffXPFactory::Make(SkXfermode::kSrc_Mode)); |
| 43 | |
| 44 | GrNoClip noClip; |
| 45 | GrPathRenderer::DrawPathArgs args; |
| 46 | args.fPaint = &paint; |
| 47 | args.fUserStencilSettings = &GrUserStencilSettings::kUnused; |
| 48 | args.fDrawContext = drawContext; |
| 49 | args.fClip = &noClip; |
| 50 | args.fResourceProvider = rp; |
| 51 | args.fViewMatrix = &matrix; |
| 52 | args.fShape = &shape; |
| 53 | args.fAntiAlias = true; |
| 54 | |
| 55 | pr->drawPath(args); |
| 56 | } |
| 57 | |
| 58 | DEF_GPUTEST_FOR_ALL_GL_CONTEXTS(AADistanceFieldPathRenderer, reporter, ctxInfo) { |
| 59 | // The DF PR only works with contexts that support derivatives |
| 60 | if (!ctxInfo.grContext()->caps()->shaderCaps()->shaderDerivativeSupport()) { |
| 61 | return; |
| 62 | } |
| 63 | sk_sp<GrDrawContext> drawContext(ctxInfo.grContext()->newDrawContext(SkBackingFit::kApprox, |
| 64 | 800, 800, |
| 65 | kSkia8888_GrPixelConfig, |
| 66 | 0, |
| 67 | kTopLeft_GrSurfaceOrigin)); |
| 68 | if (!drawContext) { |
| 69 | return; |
| 70 | } |
| 71 | |
| 72 | GrAADistanceFieldPathRenderer dfpr; |
| 73 | GrTestTarget tt; |
| 74 | ctxInfo.grContext()->getTestTarget(&tt, drawContext); |
| 75 | GrResourceProvider* rp = tt.resourceProvider(); |
| 76 | |
| 77 | test_far_from_origin(drawContext.get(), &dfpr, rp); |
| 78 | ctxInfo.grContext()->flush(); |
| 79 | } |
| 80 | #endif |