1 /* 2 * Copyright 2013 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 "SkBitmap.h" 9 #include "SkMallocPixelRef.h" 10 #include "Test.h" 11 12 // https://code.google.com/p/chromium/issues/detail?id=446164 13 static void test_bigalloc(skiatest::Reporter* reporter) { 14 const int width = 0x40000001; 15 const int height = 0x00000096; 16 const SkImageInfo info = SkImageInfo::MakeN32Premul(width, height); 17 18 SkBitmap bm; 19 REPORTER_ASSERT(reporter, !bm.tryAllocPixels(info)); 20 21 SkPixelRef* pr = SkMallocPixelRef::NewAllocate(info, info.minRowBytes(), NULL); 22 REPORTER_ASSERT(reporter, !pr); 23 } 24 25 static void test_allocpixels(skiatest::Reporter* reporter) { 26 const int width = 10; 27 const int height = 10; 28 const SkImageInfo info = SkImageInfo::MakeN32Premul(width, height); 29 const size_t explicitRowBytes = info.minRowBytes() + 24; 30 31 SkBitmap bm; 32 bm.setInfo(info); 33 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes()); 34 bm.allocPixels(); 35 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes()); 36 bm.reset(); 37 bm.allocPixels(info); 38 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes()); 39 40 bm.setInfo(info, explicitRowBytes); 41 REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes()); 42 bm.allocPixels(); 43 REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes()); 44 bm.reset(); 45 bm.allocPixels(info, explicitRowBytes); 46 REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes()); 47 48 bm.reset(); 49 bm.setInfo(info, 0); 50 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes()); 51 bm.reset(); 52 bm.allocPixels(info, 0); 53 REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes()); 54 55 bm.reset(); 56 bool success = bm.setInfo(info, info.minRowBytes() - 1); // invalid for 32bit 57 REPORTER_ASSERT(reporter, !success); 58 REPORTER_ASSERT(reporter, bm.isNull()); 59 } 60 61 static void test_bigwidth(skiatest::Reporter* reporter) { 62 SkBitmap bm; 63 int width = 1 << 29; // *4 will be the high-bit of 32bit int 64 65 SkImageInfo info = SkImageInfo::MakeA8(width, 1); 66 REPORTER_ASSERT(reporter, bm.setInfo(info)); 67 REPORTER_ASSERT(reporter, bm.setInfo(info.makeColorType(kRGB_565_SkColorType))); 68 69 // for a 4-byte config, this width will compute a rowbytes of 0x80000000, 70 // which does not fit in a int32_t. setConfig should detect this, and fail. 71 72 // TODO: perhaps skia can relax this, and only require that rowBytes fit 73 // in a uint32_t (or larger), but for now this is the constraint. 74 75 REPORTER_ASSERT(reporter, !bm.setInfo(info.makeColorType(kN32_SkColorType))); 76 } 77 78 /** 79 * This test contains basic sanity checks concerning bitmaps. 80 */ 81 DEF_TEST(Bitmap, reporter) { 82 // Zero-sized bitmaps are allowed 83 for (int width = 0; width < 2; ++width) { 84 for (int height = 0; height < 2; ++height) { 85 SkBitmap bm; 86 bool setConf = bm.setInfo(SkImageInfo::MakeN32Premul(width, height)); 87 REPORTER_ASSERT(reporter, setConf); 88 if (setConf) { 89 bm.allocPixels(); 90 } 91 REPORTER_ASSERT(reporter, SkToBool(width & height) != bm.empty()); 92 } 93 } 94 95 test_bigwidth(reporter); 96 test_allocpixels(reporter); 97 test_bigalloc(reporter); 98 } 99
