| /* |
| * 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 "Test.h" |
| |
| #include "SkPath.h" |
| |
| #if SK_SUPPORT_GPU |
| #include "GrClip.h" |
| #include "GrContext.h" |
| #include "SkGradientShader.h" |
| #include "SkShaderBase.h" |
| #include "effects/GrPorterDuffXferProcessor.h" |
| #include "ops/GrTessellatingPathRenderer.h" |
| |
| /* |
| * These tests pass by not crashing, hanging or asserting in Debug. |
| */ |
| |
| // Tests active edges made inactive by splitting. |
| // Also tests active edge list forced into an invalid ordering by |
| // splitting (mopped up in cleanup_active_edges()). |
| static SkPath create_path_0() { |
| SkPath path; |
| path.moveTo(229.127044677734375f, 67.34100341796875f); |
| path.lineTo(187.8097381591796875f, -6.7729740142822265625f); |
| path.lineTo(171.411407470703125f, 50.94266510009765625f); |
| path.lineTo(245.5253753662109375f, 9.6253643035888671875f); |
| path.moveTo(208.4683990478515625f, 30.284009933471679688f); |
| path.lineTo(171.411407470703125f, 50.94266510009765625f); |
| path.lineTo(187.8097381591796875f, -6.7729740142822265625f); |
| return path; |
| } |
| |
| // Intersections which fall exactly on the current vertex, and require |
| // a restart of the intersection checking. |
| static SkPath create_path_1() { |
| SkPath path; |
| path.moveTo(314.483551025390625f, 486.246002197265625f); |
| path.lineTo(385.41949462890625f, 532.8087158203125f); |
| path.lineTo(373.232879638671875f, 474.05938720703125f); |
| path.lineTo(326.670166015625f, 544.995361328125f); |
| path.moveTo(349.951507568359375f, 509.52734375f); |
| path.lineTo(373.232879638671875f, 474.05938720703125f); |
| path.lineTo(385.41949462890625f, 532.8087158203125f); |
| return path; |
| } |
| |
| // Tests active edges which are removed by splitting. |
| static SkPath create_path_2() { |
| SkPath path; |
| path.moveTo(343.107391357421875f, 613.62176513671875f); |
| path.lineTo(426.632415771484375f, 628.5740966796875f); |
| path.lineTo(392.3460693359375f, 579.33544921875f); |
| path.lineTo(377.39373779296875f, 662.86041259765625f); |
| path.moveTo(384.869873046875f, 621.097900390625f); |
| path.lineTo(392.3460693359375f, 579.33544921875f); |
| path.lineTo(426.632415771484375f, 628.5740966796875f); |
| return path; |
| } |
| |
| // Collinear edges merged in set_top(). |
| // Also, an intersection between left and right enclosing edges which |
| // falls above the current vertex. |
| static SkPath create_path_3() { |
| SkPath path; |
| path.moveTo(545.95751953125f, 791.69854736328125f); |
| path.lineTo(612.05816650390625f, 738.494140625f); |
| path.lineTo(552.4056396484375f, 732.0460205078125f); |
| path.lineTo(605.61004638671875f, 798.14666748046875f); |
| path.moveTo(579.00787353515625f, 765.0963134765625f); |
| path.lineTo(552.4056396484375f, 732.0460205078125f); |
| path.lineTo(612.05816650390625f, 738.494140625f); |
| return path; |
| } |
| |
| // Tests active edges which are made inactive by set_top(). |
| static SkPath create_path_4() { |
| SkPath path; |
| path.moveTo(819.2725830078125f, 751.77447509765625f); |
| path.lineTo(820.70904541015625f, 666.933837890625f); |
| path.lineTo(777.57049560546875f, 708.63592529296875f); |
| path.lineTo(862.4111328125f, 710.0723876953125f); |
| path.moveTo(819.99078369140625f, 709.3541259765625f); |
| path.lineTo(777.57049560546875f, 708.63592529296875f); |
| path.lineTo(820.70904541015625f, 666.933837890625f); |
| return path; |
| } |
| |
| static SkPath create_path_5() { |
| SkPath path; |
| path.moveTo(823.33209228515625f, 749.052734375f); |
| path.lineTo(823.494873046875f, 664.20013427734375f); |
| path.lineTo(780.9871826171875f, 706.5450439453125f); |
| path.lineTo(865.8397216796875f, 706.70782470703125f); |
| path.moveTo(823.4134521484375f, 706.6263427734375f); |
| path.lineTo(780.9871826171875f, 706.5450439453125f); |
| path.lineTo(823.494873046875f, 664.20013427734375f); |
| return path; |
| } |
| |
| static SkPath create_path_6() { |
| SkPath path; |
| path.moveTo(954.862548828125f, 562.8349609375f); |
| path.lineTo(899.32818603515625f, 498.679443359375f); |
| path.lineTo(895.017578125f, 558.52435302734375f); |
| path.lineTo(959.17315673828125f, 502.990081787109375f); |
| path.moveTo(927.0953369140625f, 530.7572021484375f); |
| path.lineTo(895.017578125f, 558.52435302734375f); |
| path.lineTo(899.32818603515625f, 498.679443359375f); |
| return path; |
| } |
| |
| static SkPath create_path_7() { |
| SkPath path; |
| path.moveTo(958.5330810546875f, 547.35516357421875f); |
| path.lineTo(899.93109130859375f, 485.989013671875f); |
| path.lineTo(898.54901123046875f, 545.97308349609375f); |
| path.lineTo(959.9151611328125f, 487.37109375f); |
| path.moveTo(929.2320556640625f, 516.67205810546875f); |
| path.lineTo(898.54901123046875f, 545.97308349609375f); |
| path.lineTo(899.93109130859375f, 485.989013671875f); |
| return path; |
| } |
| |
| static SkPath create_path_8() { |
| SkPath path; |
| path.moveTo(389.8609619140625f, 369.326873779296875f); |
| path.lineTo(470.6290283203125f, 395.33697509765625f); |
| path.lineTo(443.250030517578125f, 341.9478759765625f); |
| path.lineTo(417.239959716796875f, 422.7159423828125f); |
| path.moveTo(430.244964599609375f, 382.3319091796875f); |
| path.lineTo(443.250030517578125f, 341.9478759765625f); |
| path.lineTo(470.6290283203125f, 395.33697509765625f); |
| return path; |
| } |
| |
| static SkPath create_path_9() { |
| SkPath path; |
| path.moveTo(20, 20); |
| path.lineTo(50, 80); |
| path.lineTo(20, 80); |
| path.moveTo(80, 50); |
| path.lineTo(50, 50); |
| path.lineTo(20, 50); |
| return path; |
| } |
| |
| static SkPath create_path_10() { |
| SkPath path; |
| path.moveTo(257.19439697265625f, 320.876617431640625f); |
| path.lineTo(190.113037109375f, 320.58978271484375f); |
| path.lineTo(203.64404296875f, 293.8145751953125f); |
| path.moveTo(203.357177734375f, 360.896026611328125f); |
| path.lineTo(216.88824462890625f, 334.120819091796875f); |
| path.lineTo(230.41925048828125f, 307.345611572265625f); |
| return path; |
| } |
| |
| // A degenerate segments case, where both upper and lower segments of |
| // a split edge must remain active. |
| static SkPath create_path_11() { |
| SkPath path; |
| path.moveTo(231.9331207275390625f, 306.2012939453125f); |
| path.lineTo(191.4859161376953125f, 306.04547119140625f); |
| path.lineTo(231.0659332275390625f, 300.2642822265625f); |
| path.moveTo(189.946807861328125f, 302.072265625f); |
| path.lineTo(179.79705810546875f, 294.859771728515625f); |
| path.lineTo(191.0016021728515625f, 296.165679931640625f); |
| path.moveTo(150.8942108154296875f, 304.900146484375f); |
| path.lineTo(179.708892822265625f, 297.849029541015625f); |
| path.lineTo(190.4742279052734375f, 299.11895751953125f); |
| return path; |
| } |
| |
| // Handle the case where edge.dist(edge.fTop) != 0.0. |
| static SkPath create_path_12() { |
| SkPath path; |
| path.moveTo( 0.0f, 400.0f); |
| path.lineTo( 138.0f, 202.0f); |
| path.lineTo( 0.0f, 202.0f); |
| path.moveTo( 12.62693023681640625f, 250.57464599609375f); |
| path.lineTo( 8.13896942138671875f, 254.556884765625f); |
| path.lineTo(-18.15641021728515625f, 220.40203857421875f); |
| path.lineTo(-15.986493110656738281f, 219.6513519287109375f); |
| path.moveTo( 36.931194305419921875f, 282.485504150390625f); |
| path.lineTo( 15.617521286010742188f, 261.2901611328125f); |
| path.lineTo( 10.3829498291015625f, 252.565765380859375f); |
| path.lineTo(-16.165292739868164062f, 222.646026611328125f); |
| return path; |
| } |
| |
| // A degenerate segments case which exercises inactive edges being |
| // made active by splitting. |
| static SkPath create_path_13() { |
| SkPath path; |
| path.moveTo(690.62127685546875f, 509.25555419921875f); |
| path.lineTo(99.336181640625f, 511.71405029296875f); |
| path.lineTo(708.362548828125f, 512.4349365234375f); |
| path.lineTo(729.9940185546875f, 516.3114013671875f); |
| path.lineTo(738.708984375f, 518.76995849609375f); |
| path.lineTo(678.3463134765625f, 510.0819091796875f); |
| path.lineTo(681.21795654296875f, 504.81378173828125f); |
| path.moveTo(758.52764892578125f, 521.55963134765625f); |
| path.lineTo(719.1549072265625f, 514.50372314453125f); |
| path.lineTo(689.59063720703125f, 512.0628662109375f); |
| path.lineTo(679.78216552734375f, 507.447845458984375f); |
| return path; |
| } |
| |
| // Tests vertices which become "orphaned" (ie., no connected edges) |
| // after simplification. |
| static SkPath create_path_14() { |
| SkPath path; |
| path.moveTo(217.326019287109375f, 166.4752960205078125f); |
| path.lineTo(226.279266357421875f, 170.929473876953125f); |
| path.lineTo(234.3973388671875f, 177.0623626708984375f); |
| path.lineTo(262.0921630859375f, 188.746124267578125f); |
| path.moveTo(196.23638916015625f, 174.0722198486328125f); |
| path.lineTo(416.15277099609375f, 180.138214111328125f); |
| path.lineTo(192.651947021484375f, 304.0228271484375f); |
| return path; |
| } |
| |
| static SkPath create_path_15() { |
| SkPath path; |
| path.moveTo( 0.0f, 0.0f); |
| path.lineTo(10000.0f, 0.0f); |
| path.lineTo( 0.0f, -1.0f); |
| path.lineTo(10000.0f, 0.000001f); |
| path.lineTo( 0.0f, -30.0f); |
| return path; |
| } |
| |
| // Reduction of Nebraska-StateSeal.svg. Floating point error causes the |
| // same edge to be added to more than one poly on the same side. |
| static SkPath create_path_16() { |
| SkPath path; |
| path.moveTo(170.8199920654296875, 491.86700439453125); |
| path.lineTo(173.7649993896484375, 489.7340087890625); |
| path.lineTo(174.1450958251953125, 498.545989990234375); |
| path.lineTo( 171.998992919921875, 500.88201904296875); |
| path.moveTo(168.2922515869140625, 498.66265869140625); |
| path.lineTo(169.8589935302734375, 497.94500732421875); |
| path.lineTo( 172, 500.88299560546875); |
| path.moveTo( 169.555267333984375, 490.70111083984375); |
| path.lineTo(173.7649993896484375, 489.7340087890625); |
| path.lineTo( 170.82000732421875, 491.86700439453125); |
| return path; |
| } |
| |
| // A simple concave path. Test this with a non-invertible matrix. |
| static SkPath create_path_17() { |
| SkPath path; |
| path.moveTo(20, 20); |
| path.lineTo(80, 20); |
| path.lineTo(30, 30); |
| path.lineTo(20, 80); |
| return path; |
| } |
| |
| // A shape with a vertex collinear to the right hand edge. |
| // This messes up find_enclosing_edges. |
| static SkPath create_path_18() { |
| SkPath path; |
| path.moveTo(80, 20); |
| path.lineTo(80, 60); |
| path.lineTo(20, 60); |
| path.moveTo(80, 50); |
| path.lineTo(80, 80); |
| path.lineTo(20, 80); |
| return path; |
| } |
| |
| // Exercises the case where an edge becomes collinear with *two* of its |
| // adjacent neighbour edges after splitting. |
| // This is a reduction from |
| // http://mooooo.ooo/chebyshev-sine-approximation/horner_ulp.svg |
| static SkPath create_path_19() { |
| SkPath path; |
| path.moveTo( 351.99298095703125, 348.23046875); |
| path.lineTo( 351.91876220703125, 347.33984375); |
| path.lineTo( 351.91876220703125, 346.1953125); |
| path.lineTo( 351.90313720703125, 347.734375); |
| path.lineTo( 351.90313720703125, 346.1328125); |
| path.lineTo( 351.87579345703125, 347.93359375); |
| path.lineTo( 351.87579345703125, 345.484375); |
| path.lineTo( 351.86407470703125, 347.7890625); |
| path.lineTo( 351.86407470703125, 346.2109375); |
| path.lineTo( 351.84844970703125, 347.63763427734375); |
| path.lineTo( 351.84454345703125, 344.19232177734375); |
| path.lineTo( 351.78204345703125, 346.9483642578125); |
| path.lineTo( 351.758636474609375, 347.18310546875); |
| path.lineTo( 351.75469970703125, 346.75); |
| path.lineTo( 351.75469970703125, 345.46875); |
| path.lineTo( 352.5546875, 345.46875); |
| path.lineTo( 352.55078125, 347.01953125); |
| path.lineTo( 351.75079345703125, 347.02313232421875); |
| path.lineTo( 351.74688720703125, 346.15203857421875); |
| path.lineTo( 351.74688720703125, 347.646148681640625); |
| path.lineTo( 352.5390625, 346.94140625); |
| path.lineTo( 351.73907470703125, 346.94268798828125); |
| path.lineTo( 351.73516845703125, 344.48565673828125); |
| path.lineTo( 352.484375, 346.73828125); |
| path.lineTo( 351.68438720703125, 346.7401123046875); |
| path.lineTo( 352.4765625, 346.546875); |
| path.lineTo( 351.67657470703125, 346.54937744140625); |
| path.lineTo( 352.47265625, 346.75390625); |
| path.lineTo( 351.67266845703125, 346.756622314453125); |
| path.lineTo( 351.66876220703125, 345.612091064453125); |
| return path; |
| } |
| |
| // An intersection above the first vertex in the mesh. |
| // Reduction from http://crbug.com/730687 |
| static SkPath create_path_20() { |
| SkPath path; |
| path.moveTo( 2822128.5, 235.026336669921875); |
| path.lineTo( 2819349.25, 235.3623504638671875); |
| path.lineTo( -340558688, 23.83478546142578125); |
| path.lineTo( -340558752, 25.510419845581054688); |
| path.lineTo( -340558720, 27.18605804443359375); |
| return path; |
| } |
| |
| // An intersection whose result is NaN (due to rounded-to-inf endpoint). |
| static SkPath create_path_21() { |
| SkPath path; |
| path.moveTo(1.7889142061167663539e+38, 39338463358011572224.0); |
| path.lineTo( 1647.4193115234375, -522.603515625); |
| path.lineTo( 1677.74560546875, -529.0028076171875); |
| path.lineTo( 1678.29541015625, -528.7847900390625); |
| path.lineTo( 1637.5167236328125, -519.79266357421875); |
| path.lineTo( 1647.4193115234375, -522.603515625); |
| return path; |
| } |
| |
| // A quad which becomes NaN when interpolated. |
| static SkPath create_path_22() { |
| SkPath path; |
| path.moveTo(-5.71889e+13f, 1.36759e+09f); |
| path.quadTo(2.45472e+19f, -3.12406e+15f, -2.19589e+18f, 2.79462e+14f); |
| return path; |
| } |
| |
| static sk_sp<GrFragmentProcessor> create_linear_gradient_processor(GrContext* ctx) { |
| SkPoint pts[2] = { {0, 0}, {1, 1} }; |
| SkColor colors[2] = { SK_ColorGREEN, SK_ColorBLUE }; |
| sk_sp<SkShader> shader = SkGradientShader::MakeLinear( |
| pts, colors, nullptr, SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode); |
| SkShaderBase::AsFPArgs args( |
| ctx, &SkMatrix::I(), &SkMatrix::I(), SkFilterQuality::kLow_SkFilterQuality, nullptr); |
| return as_SB(shader)->asFragmentProcessor(args); |
| } |
| |
| static void test_path(GrContext* ctx, |
| GrRenderTargetContext* renderTargetContext, |
| const SkPath& path, |
| const SkMatrix& matrix = SkMatrix::I(), |
| GrAAType aaType = GrAAType::kNone, |
| sk_sp<GrFragmentProcessor> fp = nullptr) { |
| GrTessellatingPathRenderer tess; |
| |
| GrPaint paint; |
| paint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc)); |
| if (fp) { |
| paint.addColorFragmentProcessor(fp); |
| } |
| |
| GrNoClip noClip; |
| GrStyle style(SkStrokeRec::kFill_InitStyle); |
| GrShape shape(path, style); |
| GrPathRenderer::DrawPathArgs args{ctx, |
| std::move(paint), |
| &GrUserStencilSettings::kUnused, |
| renderTargetContext, |
| &noClip, |
| &matrix, |
| &shape, |
| aaType, |
| false}; |
| tess.drawPath(args); |
| } |
| |
| DEF_GPUTEST_FOR_ALL_CONTEXTS(TessellatingPathRendererTests, reporter, ctxInfo) { |
| GrContext* ctx = ctxInfo.grContext(); |
| |
| sk_sp<GrRenderTargetContext> rtc(ctx->makeDeferredRenderTargetContext( |
| SkBackingFit::kApprox, |
| 800, 800, |
| kRGBA_8888_GrPixelConfig, |
| nullptr, |
| 0, |
| kTopLeft_GrSurfaceOrigin)); |
| if (!rtc) { |
| return; |
| } |
| |
| ctx->flush(); |
| test_path(ctx, rtc.get(), create_path_0()); |
| test_path(ctx, rtc.get(), create_path_1()); |
| test_path(ctx, rtc.get(), create_path_2()); |
| test_path(ctx, rtc.get(), create_path_3()); |
| test_path(ctx, rtc.get(), create_path_4()); |
| test_path(ctx, rtc.get(), create_path_5()); |
| test_path(ctx, rtc.get(), create_path_6()); |
| test_path(ctx, rtc.get(), create_path_7()); |
| test_path(ctx, rtc.get(), create_path_8()); |
| test_path(ctx, rtc.get(), create_path_9()); |
| test_path(ctx, rtc.get(), create_path_10()); |
| test_path(ctx, rtc.get(), create_path_11()); |
| test_path(ctx, rtc.get(), create_path_12()); |
| test_path(ctx, rtc.get(), create_path_13()); |
| test_path(ctx, rtc.get(), create_path_14()); |
| test_path(ctx, rtc.get(), create_path_15()); |
| test_path(ctx, rtc.get(), create_path_16()); |
| SkMatrix nonInvertibleMatrix = SkMatrix::MakeScale(0, 0); |
| sk_sp<GrFragmentProcessor> fp(create_linear_gradient_processor(ctx)); |
| test_path(ctx, rtc.get(), create_path_17(), nonInvertibleMatrix, GrAAType::kCoverage, fp); |
| test_path(ctx, rtc.get(), create_path_18()); |
| test_path(ctx, rtc.get(), create_path_19()); |
| test_path(ctx, rtc.get(), create_path_20(), SkMatrix(), GrAAType::kCoverage); |
| test_path(ctx, rtc.get(), create_path_21(), SkMatrix(), GrAAType::kCoverage); |
| test_path(ctx, rtc.get(), create_path_22()); |
| } |
| #endif |
