commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 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 "SkCanvas.h" |
| 10 | #include "SkData.h" |
| 11 | #include "SkForceLinking.h" |
| 12 | #include "SkImageDecoder.h" |
| 13 | #include "SkImagePriv.h" |
commit-bot@chromium.org | 6e3e422 | 2013-11-06 10:08:30 +0000 | [diff] [blame^] | 14 | #include "SkLazyCachingPixelRef.h" |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 15 | #include "SkLazyPixelRef.h" |
| 16 | #include "SkScaledImageCache.h" |
| 17 | #include "SkStream.h" |
commit-bot@chromium.org | 6e3e422 | 2013-11-06 10:08:30 +0000 | [diff] [blame^] | 18 | |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 19 | #include "Test.h" |
commit-bot@chromium.org | 6e3e422 | 2013-11-06 10:08:30 +0000 | [diff] [blame^] | 20 | #include "TestClassDef.h" |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 21 | |
| 22 | __SK_FORCE_IMAGE_DECODER_LINKING; |
| 23 | |
| 24 | /** |
| 25 | * Fill this bitmap with some color. |
| 26 | */ |
| 27 | static void make_test_image(SkBitmap* bm) { |
| 28 | static const int W = 50, H = 50; |
| 29 | static const SkBitmap::Config config = SkBitmap::kARGB_8888_Config; |
| 30 | bm->setConfig(config, W, H); |
| 31 | bm->allocPixels(); |
| 32 | bm->eraseColor(SK_ColorBLACK); |
| 33 | SkCanvas canvas(*bm); |
| 34 | SkPaint paint; |
| 35 | paint.setColor(SK_ColorBLUE); |
| 36 | canvas.drawRectCoords(0, 0, SkIntToScalar(W/2), |
| 37 | SkIntToScalar(H/2), paint); |
| 38 | paint.setColor(SK_ColorWHITE); |
| 39 | canvas.drawRectCoords(SkIntToScalar(W/2), SkIntToScalar(H/2), |
| 40 | SkIntToScalar(W), SkIntToScalar(H), paint); |
| 41 | } |
| 42 | |
| 43 | /** |
| 44 | * encode this bitmap into some data via SkImageEncoder |
| 45 | */ |
| 46 | static SkData* create_data_from_bitmap(const SkBitmap& bm, |
| 47 | SkImageEncoder::Type type) { |
| 48 | SkDynamicMemoryWStream stream; |
| 49 | if (SkImageEncoder::EncodeStream(&stream, bm, type, 100)) { |
| 50 | return stream.copyToData(); |
| 51 | } |
| 52 | return NULL; |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * A simplified version of SkBitmapFactory |
| 57 | */ |
| 58 | static bool simple_bitmap_factory(SkBitmapFactory::DecodeProc proc, |
| 59 | SkData* data, |
| 60 | SkBitmap* dst) { |
reed@google.com | 2bd8b81 | 2013-11-01 13:46:54 +0000 | [diff] [blame] | 61 | SkImageInfo info; |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 62 | if (!proc(data->data(), data->size(), &info, NULL)) { |
| 63 | return false; |
| 64 | } |
| 65 | dst->setConfig(SkImageInfoToBitmapConfig(info), info.fWidth, |
| 66 | info.fHeight, 0, info.fAlphaType); |
| 67 | SkAutoTUnref<SkLazyPixelRef> ref(SkNEW_ARGS(SkLazyPixelRef, |
| 68 | (data, proc, NULL))); |
| 69 | dst->setPixelRef(ref); |
| 70 | return true; |
| 71 | } |
| 72 | |
| 73 | static void compare_bitmaps(skiatest::Reporter* reporter, |
| 74 | const SkBitmap& b1, const SkBitmap& b2, |
| 75 | bool pixelPerfect = true) { |
| 76 | REPORTER_ASSERT(reporter, b1.empty() == b2.empty()); |
| 77 | REPORTER_ASSERT(reporter, b1.width() == b2.width()); |
| 78 | REPORTER_ASSERT(reporter, b1.height() == b2.height()); |
| 79 | REPORTER_ASSERT(reporter, b1.isNull() == b2.isNull()); |
| 80 | SkAutoLockPixels autoLockPixels1(b1); |
| 81 | SkAutoLockPixels autoLockPixels2(b2); |
| 82 | REPORTER_ASSERT(reporter, b1.isNull() == b2.isNull()); |
| 83 | if (b1.isNull() || b1.empty()) { |
| 84 | return; |
| 85 | } |
| 86 | REPORTER_ASSERT(reporter, NULL != b1.getPixels()); |
| 87 | REPORTER_ASSERT(reporter, NULL != b2.getPixels()); |
| 88 | if ((!(b1.getPixels())) || (!(b2.getPixels()))) { |
| 89 | return; |
| 90 | } |
| 91 | if ((b1.width() != b2.width()) || |
| 92 | (b1.height() != b2.height())) { |
| 93 | return; |
| 94 | } |
| 95 | if (!pixelPerfect) { |
| 96 | return; |
| 97 | } |
commit-bot@chromium.org | 6e3e422 | 2013-11-06 10:08:30 +0000 | [diff] [blame^] | 98 | |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 99 | int pixelErrors = 0; |
| 100 | for (int y = 0; y < b2.height(); ++y) { |
| 101 | for (int x = 0; x < b2.width(); ++x) { |
| 102 | if (b1.getColor(x, y) != b2.getColor(x, y)) { |
| 103 | ++pixelErrors; |
| 104 | } |
| 105 | } |
| 106 | } |
| 107 | REPORTER_ASSERT(reporter, 0 == pixelErrors); |
| 108 | } |
| 109 | |
commit-bot@chromium.org | 6e3e422 | 2013-11-06 10:08:30 +0000 | [diff] [blame^] | 110 | |
| 111 | typedef void(*CompareEncodedToOriginal)(skiatest::Reporter* reporter, |
| 112 | SkData* encoded, |
| 113 | const SkBitmap& original, |
| 114 | bool pixelPerfect); |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 115 | /** |
commit-bot@chromium.org | 6e3e422 | 2013-11-06 10:08:30 +0000 | [diff] [blame^] | 116 | this function tests three differently encoded images against the |
| 117 | original bitmap */ |
| 118 | static void test_three_encodings(skiatest::Reporter* reporter, |
| 119 | CompareEncodedToOriginal comp) { |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 120 | SkBitmap original; |
| 121 | make_test_image(&original); |
commit-bot@chromium.org | 6e3e422 | 2013-11-06 10:08:30 +0000 | [diff] [blame^] | 122 | REPORTER_ASSERT(reporter, !original.empty()); |
| 123 | REPORTER_ASSERT(reporter, !original.isNull()); |
| 124 | if (original.empty() || original.isNull()) { |
| 125 | return; |
| 126 | } |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 127 | static const SkImageEncoder::Type types[] = { |
| 128 | SkImageEncoder::kPNG_Type, |
| 129 | SkImageEncoder::kJPEG_Type, |
| 130 | SkImageEncoder::kWEBP_Type |
| 131 | }; |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 132 | for (size_t i = 0; i < SK_ARRAY_COUNT(types); i++) { |
| 133 | SkImageEncoder::Type type = types[i]; |
| 134 | SkAutoDataUnref encoded(create_data_from_bitmap(original, type)); |
| 135 | REPORTER_ASSERT(reporter, encoded.get() != NULL); |
commit-bot@chromium.org | 6e3e422 | 2013-11-06 10:08:30 +0000 | [diff] [blame^] | 136 | if (NULL != encoded.get()) { |
| 137 | bool comparePixels = (SkImageEncoder::kPNG_Type == type); |
| 138 | comp(reporter, encoded, original, comparePixels); |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 139 | } |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 140 | } |
| 141 | } |
commit-bot@chromium.org | 6e3e422 | 2013-11-06 10:08:30 +0000 | [diff] [blame^] | 142 | |
| 143 | /** |
| 144 | * This checks to see that a SkLazyPixelRef works as advertised. |
| 145 | */ |
| 146 | static void compare_with_skLazyPixelRef(skiatest::Reporter* reporter, |
| 147 | SkData* encoded, |
| 148 | const SkBitmap& original, |
| 149 | bool comparePixels) { |
| 150 | SkBitmap lazy; |
| 151 | static const SkBitmapFactory::DecodeProc decoder = |
| 152 | &(SkImageDecoder::DecodeMemoryToTarget); |
| 153 | bool success = simple_bitmap_factory(decoder, encoded, &lazy); |
| 154 | REPORTER_ASSERT(reporter, success); |
| 155 | |
| 156 | REPORTER_ASSERT(reporter, NULL == lazy.getPixels()); |
| 157 | { |
| 158 | SkAutoLockPixels autoLockPixels(lazy); // now pixels are good. |
| 159 | REPORTER_ASSERT(reporter, NULL != lazy.getPixels()); |
| 160 | } |
| 161 | // pixels should be gone! |
| 162 | REPORTER_ASSERT(reporter, NULL == lazy.getPixels()); |
| 163 | { |
| 164 | SkAutoLockPixels autoLockPixels(lazy); // now pixels are good. |
| 165 | REPORTER_ASSERT(reporter, NULL != lazy.getPixels()); |
| 166 | } |
| 167 | compare_bitmaps(reporter, original, lazy, comparePixels); |
| 168 | } |
| 169 | DEF_TEST(LazyPixelRef, reporter) { |
| 170 | test_three_encodings(reporter, compare_with_skLazyPixelRef); |
| 171 | } |
| 172 | |
| 173 | |
| 174 | |
| 175 | /** |
| 176 | * This checks to see that a SkLazyCachedPixelRef works as advertised. |
| 177 | */ |
| 178 | |
| 179 | static void compare_with_skLazyCachedPixelRef(skiatest::Reporter* reporter, |
| 180 | SkData* encoded, |
| 181 | const SkBitmap& original, |
| 182 | bool comparePixels) { |
| 183 | SkBitmap lazy; |
| 184 | static const SkBitmapFactory::DecodeProc decoder = |
| 185 | &(SkImageDecoder::DecodeMemoryToTarget); |
| 186 | bool success = SkLazyCachingPixelRef::Install(decoder, encoded, &lazy); |
| 187 | REPORTER_ASSERT(reporter, success); |
| 188 | |
| 189 | REPORTER_ASSERT(reporter, NULL == lazy.getPixels()); |
| 190 | { |
| 191 | SkAutoLockPixels autoLockPixels(lazy); // now pixels are good. |
| 192 | REPORTER_ASSERT(reporter, NULL != lazy.getPixels()); |
| 193 | } |
| 194 | // pixels should be gone! |
| 195 | REPORTER_ASSERT(reporter, NULL == lazy.getPixels()); |
| 196 | { |
| 197 | SkAutoLockPixels autoLockPixels(lazy); // now pixels are good. |
| 198 | REPORTER_ASSERT(reporter, NULL != lazy.getPixels()); |
| 199 | } |
| 200 | compare_bitmaps(reporter, original, lazy, comparePixels); |
| 201 | } |
| 202 | DEF_TEST(LazyCachedPixelRef, reporter) { |
| 203 | test_three_encodings(reporter, compare_with_skLazyCachedPixelRef); |
| 204 | } |
| 205 | |
| 206 | class TestPixelRef : public SkCachingPixelRef { |
| 207 | public: |
| 208 | TestPixelRef(int x) : fX(x) { } |
| 209 | virtual ~TestPixelRef() { } |
| 210 | static bool Install(SkBitmap* destination, int x) { |
| 211 | SkAutoTUnref<TestPixelRef> ref(SkNEW_ARGS(TestPixelRef, (x))); |
| 212 | return ref->configure(destination) && destination->setPixelRef(ref); |
| 213 | } |
| 214 | SK_DECLARE_UNFLATTENABLE_OBJECT() |
| 215 | protected: |
| 216 | virtual bool onDecodeInfo(SkImageInfo* info) SK_OVERRIDE { |
| 217 | if (fX == 0) { |
| 218 | return false; |
| 219 | } |
| 220 | SkASSERT(info); |
| 221 | info->fWidth = 10; |
| 222 | info->fHeight = 10; |
| 223 | info->fColorType = kRGBA_8888_SkColorType; |
| 224 | info->fAlphaType = kOpaque_SkAlphaType; |
| 225 | return true; |
| 226 | } |
| 227 | virtual bool onDecodePixels(const SkImageInfo& info, |
| 228 | void* pixels, |
| 229 | size_t rowBytes) SK_OVERRIDE { |
| 230 | return false; |
| 231 | } |
| 232 | private: |
| 233 | int fX; // controls where the failure happens |
| 234 | typedef SkCachingPixelRef INHERITED; |
| 235 | }; |
| 236 | |
| 237 | DEF_TEST(CachingPixelRef, reporter) { |
| 238 | SkBitmap lazy; |
| 239 | // test the error handling |
| 240 | REPORTER_ASSERT(reporter, !TestPixelRef::Install(&lazy, 0)); |
| 241 | // onDecodeInfo should succeed, allowing installation |
| 242 | REPORTER_ASSERT(reporter, TestPixelRef::Install(&lazy, 1)); |
| 243 | SkAutoLockPixels autoLockPixels(lazy); // now pixels are good. |
| 244 | // onDecodePixels should fail, so getting pixels will fail. |
| 245 | REPORTER_ASSERT(reporter, NULL == lazy.getPixels()); |
| 246 | } |