1 2 /* 3 * Copyright 2011 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 #include "Test.h" 9 #include "SkRegion.h" 10 #include "SkRandom.h" 11 12 static void rand_rect(SkIRect* rect, SkRandom& rand) { 13 int bits = 6; 14 int shift = 32 - bits; 15 rect->set(rand.nextU() >> shift, rand.nextU() >> shift, 16 rand.nextU() >> shift, rand.nextU() >> shift); 17 rect->sort(); 18 } 19 20 static bool test_rects(const SkIRect rect[], int count) { 21 SkRegion rgn0, rgn1; 22 23 for (int i = 0; i < count; i++) { 24 rgn0.op(rect[i], SkRegion::kUnion_Op); 25 } 26 rgn1.setRects(rect, count); 27 28 if (rgn0 != rgn1) { 29 SkDebugf("\n"); 30 for (int i = 0; i < count; i++) { 31 SkDebugf(" { %d, %d, %d, %d },\n", 32 rect[i].fLeft, rect[i].fTop, 33 rect[i].fRight, rect[i].fBottom); 34 } 35 SkDebugf("\n"); 36 return false; 37 } 38 return true; 39 } 40 41 static void TestRegion(skiatest::Reporter* reporter) { 42 const SkIRect r2[] = { 43 { 0, 0, 1, 1 }, 44 { 2, 2, 3, 3 }, 45 }; 46 REPORTER_ASSERT(reporter, test_rects(r2, SK_ARRAY_COUNT(r2))); 47 48 const SkIRect rects[] = { 49 { 0, 0, 1, 2 }, 50 { 2, 1, 3, 3 }, 51 { 4, 0, 5, 1 }, 52 { 6, 0, 7, 4 }, 53 }; 54 REPORTER_ASSERT(reporter, test_rects(rects, SK_ARRAY_COUNT(rects))); 55 56 SkRandom rand; 57 for (int i = 0; i < 1000; i++) { 58 SkRegion rgn0, rgn1; 59 60 const int N = 8; 61 SkIRect rect[N]; 62 for (int j = 0; j < N; j++) { 63 rand_rect(&rect[j], rand); 64 } 65 REPORTER_ASSERT(reporter, test_rects(rect, N)); 66 } 67 } 68 69 #include "TestClassDef.h" 70 DEFINE_TESTCLASS("Region", RegionTestClass, TestRegion) 71
