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skia2/tests/TessellatingPathRendererTests.cpp
Stephen White 1c5fd18927 GrTessellator: missing intersection rewind fix. 
Some "missing" intersections (see
https://skia.googlesource.com/skia/+/89042d5f13a56d6b663657aa58f17593123a344e)
cause the active edge list to go out of order. In that case, we need
to rewind the active list, just as we do before edge splitting for
regular intersections.

BUG=860453

Change-Id: I1f7b32157a73b427a4fd94c14c1eb440f26c0743
Reviewed-on: https://skia-review.googlesource.com/141038
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>
2018-07-13 03:00:24 +00:00

705 lines
29 KiB
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/*
* 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 "GrClip.h"
#include "GrContext.h"
#include "GrContextPriv.h"
#include "GrShape.h"
#include "GrStyle.h"
#include "SkGradientShader.h"
#include "SkPath.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;
}
// A path which contains out-of-range colinear intersections.
static SkPath create_path_23() {
SkPath path;
path.moveTo( 0, 63.39080047607421875);
path.lineTo(-0.70804601907730102539, 63.14350128173828125);
path.lineTo(-7.8608899287380243391e-17, 64.14080047607421875);
path.moveTo( 0, 64.14080047607421875);
path.lineTo(44.285900115966796875, 64.14080047607421875);
path.lineTo( 0, 62.64080047607421875);
path.moveTo(21.434900283813476562, -0.24732701480388641357);
path.lineTo(-0.70804601907730102539, 63.14350128173828125);
path.lineTo(0.70804601907730102539, 63.6381988525390625);
return path;
}
// A path which results in infs and nans when conics are converted to quads.
static SkPath create_path_24() {
SkPath path;
path.moveTo(-2.20883e+37f, -1.02892e+37f);
path.conicTo(-2.00958e+38f, -9.36107e+37f, -1.7887e+38f, -8.33215e+37f, 0.707107f);
path.conicTo(-1.56782e+38f, -7.30323e+37f, 2.20883e+37f, 1.02892e+37f, 0.707107f);
path.conicTo(2.00958e+38f, 9.36107e+37f, 1.7887e+38f, 8.33215e+37f, 0.707107f);
path.conicTo(1.56782e+38f, 7.30323e+37f, -2.20883e+37f, -1.02892e+37f, 0.707107f);
return path;
}
// An edge collapse event which also collapses a neighbour, requiring
// its event to be removed.
static SkPath create_path_25() {
SkPath path;
path.moveTo( 43.44110107421875, 148.15106201171875);
path.lineTo( 44.64471435546875, 148.16748046875);
path.lineTo( 46.35009765625, 147.403076171875);
path.lineTo( 46.45404052734375, 148.34906005859375);
path.lineTo( 45.0400390625, 148.54205322265625);
path.lineTo( 44.624053955078125, 148.9810791015625);
path.lineTo( 44.59405517578125, 149.16107177734375);
path.lineTo( 44.877044677734375, 149.62005615234375);
path.lineTo(144.373016357421875, 68.8070068359375);
return path;
}
// An edge collapse event causes an edge to become collinear, requiring
// its event to be removed.
static SkPath create_path_26() {
SkPath path;
path.moveTo( 43.44110107421875, 148.15106201171875);
path.lineTo( 44.64471435546875, 148.16748046875);
path.lineTo( 46.35009765625, 147.403076171875);
path.lineTo( 46.45404052734375, 148.34906005859375);
path.lineTo( 45.0400390625, 148.54205322265625);
path.lineTo( 44.624053955078125, 148.9810791015625);
path.lineTo( 44.59405517578125, 149.16107177734375);
path.lineTo( 44.877044677734375, 149.62005615234375);
path.lineTo(144.373016357421875, 68.8070068359375);
return path;
}
// A path which results in non-finite points when stroked and bevelled for AA.
static SkPath create_path_27() {
SkPath path;
path.moveTo(8.5027233009104409507e+37, 1.7503381025241130639e+37);
path.lineTo(7.0923661737711584874e+37, 1.4600074517285415699e+37);
path.lineTo(7.0848733446033294691e+37, 1.4584649744781838604e+37);
path.lineTo(-2.0473916115129349496e+37, -4.2146796450364162012e+36);
path.lineTo(2.0473912312177548811e+37, 4.2146815465123165435e+36);
return path;
}
// AA stroking this path produces intersection failures on bevelling.
// This should skip the point, but not assert.
static SkPath create_path_28() {
SkPath path;
path.moveTo(-7.5952312625177475154e+21, -2.6819185100266674911e+24);
path.lineTo( 1260.3787841796875, 1727.7947998046875);
path.lineTo( 1260.5567626953125, 1728.0386962890625);
path.lineTo(1.1482511310557754163e+21, 4.054538502765980051e+23);
path.lineTo(-7.5952312625177475154e+21, -2.6819185100266674911e+24);
return path;
}
// A quad which generates a huge number of points (>2B) when uniformly
// linearized. This should not hang or OOM.
static SkPath create_path_29() {
SkPath path;
path.moveTo(10, 0);
path.lineTo(0, 0);
path.quadTo(10, 0, 0, 8315084722602508288);
return path;
}
// A path which hangs during simplification. It produces an edge which is
// to the left of its own endpoints, which causes an infinte loop in the
// right-enclosing-edge splitting.
static SkPath create_path_30() {
SkPath path;
path.moveTo(0.75001740455627441406, 23.051967620849609375);
path.lineTo(5.8471612930297851562, 22.731662750244140625);
path.lineTo(10.749670028686523438, 22.253145217895507812);
path.lineTo(13.115868568420410156, 22.180681228637695312);
path.lineTo(15.418928146362304688, 22.340015411376953125);
path.lineTo( 17.654022216796875, 22.82159423828125);
path.lineTo(19.81632232666015625, 23.715869903564453125);
path.lineTo(40, 0);
path.lineTo(5.5635203441547955577e-15, 0);
path.lineTo(5.5635203441547955577e-15, 47);
path.lineTo(-1.4210854715202003717e-14, 21.713298797607421875);
path.lineTo(0.75001740455627441406, 21.694292068481445312);
path.lineTo(0.75001740455627441406, 23.051967620849609375);
return path;
}
// A path with vertices which become infinite on AA stroking. Should not crash or assert.
static SkPath create_path_31() {
SkPath path;
path.moveTo(2.0257809259190991347e+36, -1244080640);
path.conicTo(2.0257809259190991347e+36, -1244080640,
2.0257809259190991347e+36, 0.10976474732160568237, 0.70710676908493041992);
path.lineTo(-10036566016, -1954718402215936);
path.conicTo(-1.1375507718551896064e+20, -1954721086570496,
10036566016, -1954721086570496, 0.70710676908493041992);
return path;
}
// Reduction from skbug.com/7911 that causes a crash due to splitting a
// zombie edge.
static SkPath create_path_32() {
SkPath path;
path.moveTo( 0, 1.0927740941146660348e+24);
path.lineTo(2.9333931225865729333e+32, 16476101);
path.lineTo(1.0927731573659435417e+24, 1.0927740941146660348e+24);
path.lineTo(1.0927740941146660348e+24, 3.7616281094287041715e-37);
path.lineTo(1.0927740941146660348e+24, 1.0927740941146660348e+24);
path.lineTo(1.3061803026169399536e-33, 1.0927740941146660348e+24);
path.lineTo(4.7195362919941370727e-16, -8.4247545146051822591e+32);
return path;
}
// From crbug.com/844873. Crashes trying to merge a zombie edge.
static SkPath create_path_33() {
SkPath path;
path.moveTo( 316.000579833984375, -4338355948977389568);
path.lineTo(1.5069369808623501312e+20, 75180972320904708096.0);
path.lineTo(1.5069369808623501312e+20, 75180972320904708096.0);
path.lineTo( 771.21014404296875, -4338355948977389568.0);
path.lineTo( 316.000579833984375, -4338355948977389568.0);
path.moveTo( 354.208984375, -4338355948977389568.0);
path.lineTo( 773.00177001953125, -4338355948977389568.0);
path.lineTo(1.5069369808623501312e+20, 75180972320904708096.0);
path.lineTo(1.5069369808623501312e+20, 75180972320904708096.0);
path.lineTo( 354.208984375, -4338355948977389568.0);
return path;
}
// From crbug.com/844873. Hangs repeatedly splitting alternate vertices.
static SkPath create_path_34() {
SkPath path;
path.moveTo(10, -1e+20f);
path.lineTo(11, 25000);
path.lineTo(10, 25000);
path.lineTo(11, 25010);
return path;
}
// Reduction from circular_arcs_stroke_and_fill_round GM which
// repeatedly splits on the opposite edge from case 34 above.
static SkPath create_path_35() {
SkPath path;
path.moveTo( 16.25, 26.495191574096679688);
path.lineTo(32.420825958251953125, 37.377376556396484375);
path.lineTo(25.176382064819335938, 39.31851959228515625);
path.moveTo( 20, 20);
path.lineTo(28.847436904907226562, 37.940830230712890625);
path.lineTo(25.17638397216796875, 39.31851959228515625);
return path;
}
// Reduction from crbug.com/843135 where an intersection is found
// below the bottom of both intersected edges.
static SkPath create_path_36() {
SkPath path;
path.moveTo(-2791476679359332352, 2608107002026524672);
path.lineTo( 0, 11.95427703857421875);
path.lineTo(-2781824066779086848, 2599088532777598976);
path.lineTo( -7772.6875, 7274);
return path;
}
// Reduction from crbug.com/843135. Exercises a case where an intersection is missed.
// This causes bad ordering in the active edge list.
static SkPath create_path_37() {
SkPath path;
path.moveTo(-1.0662557646016024569e+23, 9.9621425197286319718e+22);
path.lineTo( -121806400, 113805032);
path.lineTo( -120098872, 112209680);
path.lineTo( 6.2832999862817380468e-36, 2.9885697364807128906);
return path;
}
// Reduction from crbug.com/851914.
static SkPath create_path_38() {
SkPath path;
path.moveTo(14.400531768798828125, 17.711114883422851562);
path.lineTo(14.621990203857421875, 171563104293879808);
path.lineTo(14.027951240539550781, 872585759381520384);
path.lineTo( 14.0216827392578125, 872665817571917824);
path.lineTo(7.699314117431640625, -3417320793833472);
path.moveTo(11.606547355651855469, 17.40966796875);
path.lineTo( 7642114886926860288, 21.08358001708984375);
path.lineTo(11.606547355651855469, 21.08358001708984375);
return path;
}
// Reduction from crbug.com/851409. Exercises collinear last vertex.
static SkPath create_path_39() {
SkPath path;
path.moveTo(2072553216, 0);
path.lineTo(2072553216, 1);
path.lineTo(2072553472, -13.5);
path.lineTo(2072553216, 0);
path.lineTo(2072553472, -6.5);
return path;
}
// Another reduction from crbug.com/851409. Exercises two sequential collinear edges.
static SkPath create_path_40() {
SkPath path;
path.moveTo(2072553216, 0);
path.lineTo(2072553216, 1);
path.lineTo(2072553472, -13);
path.lineTo(2072553216, 0);
path.lineTo(2072553472, -6);
path.lineTo(2072553472, -13);
return path;
}
// Reduction from crbug.com/860453. Tests a case where a "missing" intersection
// requires the active edge list to go out-of-order.
static SkPath create_path_41() {
SkPath path;
path.moveTo(72154931603311689728.0, 330.95965576171875);
path.lineTo(24053266013925408768.0, 78.11376953125);
path.lineTo(1.2031099003292404941e+20, 387.168731689453125);
path.lineTo(68859835992355373056.0, 346.55047607421875);
path.lineTo(76451708695451009024.0, 337.780029296875);
path.moveTo(-20815817797613387776.0, 18065700622522384384.0);
path.lineTo(-72144121204987396096.0, 142.855804443359375);
path.lineTo(72144121204987396096.0, 325.184783935546875);
path.lineTo(1.2347242901040791552e+20, 18065700622522384384.0);
return path;
}
static std::unique_ptr<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);
GrColorSpaceInfo colorSpaceInfo(nullptr, kRGBA_8888_GrPixelConfig);
GrFPArgs args(ctx, &SkMatrix::I(), SkFilterQuality::kLow_SkFilterQuality, &colorSpaceInfo);
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,
std::unique_ptr<GrFragmentProcessor> fp = nullptr) {
GrTessellatingPathRenderer tess;
GrPaint paint;
paint.setXPFactory(GrPorterDuffXPFactory::Get(SkBlendMode::kSrc));
if (fp) {
paint.addColorFragmentProcessor(std::move(fp));
}
GrNoClip noClip;
SkIRect clipConservativeBounds = SkIRect::MakeWH(renderTargetContext->width(),
renderTargetContext->height());
GrStyle style(SkStrokeRec::kFill_InitStyle);
GrShape shape(path, style);
GrPathRenderer::DrawPathArgs args{ctx,
std::move(paint),
&GrUserStencilSettings::kUnused,
renderTargetContext,
&noClip,
&clipConservativeBounds,
&matrix,
&shape,
aaType,
false};
tess.drawPath(args);
}
DEF_GPUTEST_FOR_ALL_CONTEXTS(TessellatingPathRendererTests, reporter, ctxInfo) {
GrContext* ctx = ctxInfo.grContext();
sk_sp<GrRenderTargetContext> rtc(ctx->contextPriv().makeDeferredRenderTargetContext(
SkBackingFit::kApprox, 800, 800, kRGBA_8888_GrPixelConfig, nullptr, 1, GrMipMapped::kNo,
kTopLeft_GrSurfaceOrigin));
if (!rtc) {
return;
}
ctx->flush();
// Adding discard to appease vulkan validation warning about loading uninitialized data on draw
rtc->discard();
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);
std::unique_ptr<GrFragmentProcessor> fp(create_linear_gradient_processor(ctx));
test_path(ctx, rtc.get(), create_path_17(), nonInvertibleMatrix, GrAAType::kCoverage,
std::move(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());
test_path(ctx, rtc.get(), create_path_23());
test_path(ctx, rtc.get(), create_path_24());
test_path(ctx, rtc.get(), create_path_25(), SkMatrix(), GrAAType::kCoverage);
test_path(ctx, rtc.get(), create_path_26(), SkMatrix(), GrAAType::kCoverage);
test_path(ctx, rtc.get(), create_path_27(), SkMatrix(), GrAAType::kCoverage);
test_path(ctx, rtc.get(), create_path_28(), SkMatrix(), GrAAType::kCoverage);
test_path(ctx, rtc.get(), create_path_29());
test_path(ctx, rtc.get(), create_path_30());
test_path(ctx, rtc.get(), create_path_31(), SkMatrix(), GrAAType::kCoverage);
test_path(ctx, rtc.get(), create_path_32());
test_path(ctx, rtc.get(), create_path_33());
test_path(ctx, rtc.get(), create_path_34());
test_path(ctx, rtc.get(), create_path_35());
test_path(ctx, rtc.get(), create_path_36());
test_path(ctx, rtc.get(), create_path_37());
test_path(ctx, rtc.get(), create_path_38(), SkMatrix(), GrAAType::kCoverage);
test_path(ctx, rtc.get(), create_path_39());
test_path(ctx, rtc.get(), create_path_40());
test_path(ctx, rtc.get(), create_path_41(), SkMatrix(), GrAAType::kCoverage);
}
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