12b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips/* 22b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips * Copyright 2014 Google Inc. 32b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips * 42b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips * Use of this source code is governed by a BSD-style license that can be 52b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips * found in the LICENSE file. 62b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips */ 72b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips 8af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org#include "Test.h" 9af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org 10af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org#include "SkDashPathEffect.h" 11af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org#include "SkWriteBuffer.h" 12af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org 13af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org// crbug.com/348821 was rooted in SkDashPathEffect refusing to flatten and unflatten itself when 14af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org// fInitialDashLength < 0 (a signal the effect is nonsense). Here we test that it flattens. 15af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org 16af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.orgDEF_TEST(DashPathEffectTest_crbug_348821, r) { 17af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org SkScalar intervals[] = { 1.76934361e+36f, 2.80259693e-45f }; // Values from bug. 18af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org const int count = 2; 19af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org SkScalar phase = SK_ScalarInfinity; // Used to force the bad fInitialDashLength = -1 path. 20af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org SkAutoTUnref<SkDashPathEffect> dash(SkDashPathEffect::Create(intervals, count, phase)); 21af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org 22af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org // NULL -> refuses to work with flattening framework. 23af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org REPORTER_ASSERT(r, dash->getFactory() != NULL); 24af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org 25af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org SkWriteBuffer buffer; 26af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org buffer.writeFlattenable(dash); 27af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org REPORTER_ASSERT(r, buffer.bytesWritten() > 12); // We'd write 12 if broken, >=40 if not. 28af5346a39cf2412eeb2da7339a51e44ae68dd677commit-bot@chromium.org} 292b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips 302b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips// Test out the asPoint culling behavior. 312b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillipsDEF_TEST(DashPathEffectTest_asPoints, r) { 322b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips 332b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips const SkScalar intervals[] = { 1.0f, 1.0f }; 342b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips const int count = 2; 352b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips SkAutoTUnref<SkDashPathEffect> dash(SkDashPathEffect::Create(intervals, count, 0.0f)); 362b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips 372b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips SkRect cull = SkRect::MakeWH(1.0f, 1.0f); 382b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips 392b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips const struct { 402b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips SkPoint fPts[2]; 412b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips bool fExpectedResult; 422b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips } testCases[] = { 432b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips { { { -5.0f, 0.5f }, { -4.0f, 0.5f } }, false }, // off to the left 442b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips { { { 4.0f, 0.5f }, { 5.0f, 0.5f } }, false }, // off to the right 452b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips { { { 0.5f, 4.0f }, { 0.5f, 5.0f } }, false }, // off the bottom 462b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips { { { 0.5f, -5.0f }, { 0.5f, -4.0f } }, false }, // off the top 472b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips { { { 0.5f, 0.2f }, { 0.5f, 0.8f } }, true }, // entirely inside vertical 482b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips { { { 0.2f, 0.5f }, { 0.8f, 0.5f } }, true }, // entirely inside horizontal 492b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips { { { 0.5f, -5.0f }, { 0.5f, 5.0f } }, true }, // straddles both sides vertically 502b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips { { { -5.0f, 0.5f }, { 5.0f, 0.5f } }, true }, // straddles both sides horizontally 512b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips { { { 0.5f, -5.0f }, { 0.5f, 0.5f } }, true }, // straddles top 522b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips { { { 0.5f, 5.0f }, { 0.5f, 0.5f } }, true }, // straddles bottom 532b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips { { { -5.0f, 0.5f }, { 0.5f, 0.5f } }, true }, // straddles left 542b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips { { { 5.0f, 0.5f }, { 0.5f, 0.5f } }, true }, // straddles right 552b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips { { { 0.5f, 0.5f }, { 0.5f, 0.5f } }, false }, // zero length 562b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips }; 572b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips 582b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips SkPaint paint; 592b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips paint.setStyle(SkPaint::kStroke_Style); 602b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips paint.setStrokeWidth(1.0f); 612b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips SkStrokeRec rec(paint); 622b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips 632b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips static const int kNumMats = 3; 642b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips SkMatrix mats[kNumMats]; 652b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips mats[0].reset(); 662b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips mats[1].setRotate(90, 0.5f, 0.5f); 672b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips mats[2].setTranslate(10.0f, 10.0f); 682b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips 692b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips for (int i = 0; i < kNumMats; ++i) { 702b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips for (int j = 0; j < (int)SK_ARRAY_COUNT(testCases); ++j) { 712b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips for (int k = 0; k < 2; ++k) { // exercise alternating endpoints 722b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips SkPathEffect::PointData results; 732b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips SkPath src; 742b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips 752b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips src.moveTo(testCases[j].fPts[k]); 762b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips src.lineTo(testCases[j].fPts[(k+1)%2]); 772b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips 782b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips bool actualResult = dash->asPoints(&results, src, rec, mats[i], &cull); 792b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips if (i < 2) { 802b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips REPORTER_ASSERT(r, actualResult == testCases[j].fExpectedResult); 812b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips } else { 822b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips // On the third pass all the lines should be outside the translated cull rect 832b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips REPORTER_ASSERT(r, !actualResult); 842b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips } 852b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips } 862b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips } 872b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips } 882b9ee63c2423167cf39d7a5027db944057c74cfdrobertphillips} 89