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 "include/core/SkCanvas.h"
9 #include "include/core/SkFontMetrics.h"
10 #include "include/core/SkFontMgr.h"
11 #include "include/core/SkImage.h"
12 #include "include/core/SkMallocPixelRef.h"
13 #include "include/core/SkPictureRecorder.h"
14 #include "include/core/SkTextBlob.h"
15 #include "include/core/SkTypeface.h"
16 #include "include/effects/SkDashPathEffect.h"
17 #include "include/effects/SkImageFilters.h"
18 #include "include/effects/SkTableColorFilter.h"
19 #include "include/private/SkFixed.h"
20 #include "include/private/SkTemplates.h"
21 #include "src/core/SkAnnotationKeys.h"
22 #include "src/core/SkAutoMalloc.h"
23 #include "src/core/SkMatrixPriv.h"
24 #include "src/core/SkOSFile.h"
25 #include "src/core/SkPicturePriv.h"
26 #include "src/core/SkReadBuffer.h"
27 #include "src/core/SkWriteBuffer.h"
28 #include "src/shaders/SkShaderBase.h"
29 #include "tests/Test.h"
30 #include "tools/Resources.h"
31 #include "tools/ToolUtils.h"
32
33 static const uint32_t kArraySize = 64;
34 static const int kBitmapSize = 256;
35
36 class SerializationTest {
37 public:
38
39 template<typename T>
TestAlignment(T * testObj,skiatest::Reporter * reporter)40 static void TestAlignment(T* testObj, skiatest::Reporter* reporter) {
41 // Test memory read/write functions directly
42 unsigned char dataWritten[1024];
43 size_t bytesWrittenToMemory = testObj->writeToMemory(dataWritten);
44 REPORTER_ASSERT(reporter, SkAlign4(bytesWrittenToMemory) == bytesWrittenToMemory);
45 size_t bytesReadFromMemory = testObj->readFromMemory(dataWritten, bytesWrittenToMemory);
46 REPORTER_ASSERT(reporter, SkAlign4(bytesReadFromMemory) == bytesReadFromMemory);
47 }
48 };
49
50 template<typename T> struct SerializationUtils {
51 // Generic case for flattenables
WriteSerializationUtils52 static void Write(SkWriteBuffer& writer, const T* flattenable) {
53 writer.writeFlattenable(flattenable);
54 }
ReadSerializationUtils55 static void Read(SkReadBuffer& reader, T** flattenable) {
56 *flattenable = (T*)reader.readFlattenable(T::GetFlattenableType());
57 }
58 };
59
60 template<> struct SerializationUtils<SkMatrix> {
WriteSerializationUtils61 static void Write(SkWriteBuffer& writer, const SkMatrix* matrix) {
62 writer.writeMatrix(*matrix);
63 }
ReadSerializationUtils64 static void Read(SkReadBuffer& reader, SkMatrix* matrix) {
65 reader.readMatrix(matrix);
66 }
67 };
68
69 template<> struct SerializationUtils<SkPath> {
WriteSerializationUtils70 static void Write(SkWriteBuffer& writer, const SkPath* path) {
71 writer.writePath(*path);
72 }
ReadSerializationUtils73 static void Read(SkReadBuffer& reader, SkPath* path) {
74 reader.readPath(path);
75 }
76 };
77
78 template<> struct SerializationUtils<SkRegion> {
WriteSerializationUtils79 static void Write(SkWriteBuffer& writer, const SkRegion* region) {
80 writer.writeRegion(*region);
81 }
ReadSerializationUtils82 static void Read(SkReadBuffer& reader, SkRegion* region) {
83 reader.readRegion(region);
84 }
85 };
86
87 template<> struct SerializationUtils<SkString> {
WriteSerializationUtils88 static void Write(SkWriteBuffer& writer, const SkString* string) {
89 writer.writeString(string->c_str());
90 }
ReadSerializationUtils91 static void Read(SkReadBuffer& reader, SkString* string) {
92 reader.readString(string);
93 }
94 };
95
96 template<> struct SerializationUtils<unsigned char> {
WriteSerializationUtils97 static void Write(SkWriteBuffer& writer, unsigned char* data, uint32_t arraySize) {
98 writer.writeByteArray(data, arraySize);
99 }
ReadSerializationUtils100 static bool Read(SkReadBuffer& reader, unsigned char* data, uint32_t arraySize) {
101 return reader.readByteArray(data, arraySize);
102 }
103 };
104
105 template<> struct SerializationUtils<SkColor> {
WriteSerializationUtils106 static void Write(SkWriteBuffer& writer, SkColor* data, uint32_t arraySize) {
107 writer.writeColorArray(data, arraySize);
108 }
ReadSerializationUtils109 static bool Read(SkReadBuffer& reader, SkColor* data, uint32_t arraySize) {
110 return reader.readColorArray(data, arraySize);
111 }
112 };
113
114 template<> struct SerializationUtils<SkColor4f> {
WriteSerializationUtils115 static void Write(SkWriteBuffer& writer, SkColor4f* data, uint32_t arraySize) {
116 writer.writeColor4fArray(data, arraySize);
117 }
ReadSerializationUtils118 static bool Read(SkReadBuffer& reader, SkColor4f* data, uint32_t arraySize) {
119 return reader.readColor4fArray(data, arraySize);
120 }
121 };
122
123 template<> struct SerializationUtils<int32_t> {
WriteSerializationUtils124 static void Write(SkWriteBuffer& writer, int32_t* data, uint32_t arraySize) {
125 writer.writeIntArray(data, arraySize);
126 }
ReadSerializationUtils127 static bool Read(SkReadBuffer& reader, int32_t* data, uint32_t arraySize) {
128 return reader.readIntArray(data, arraySize);
129 }
130 };
131
132 template<> struct SerializationUtils<SkPoint> {
WriteSerializationUtils133 static void Write(SkWriteBuffer& writer, SkPoint* data, uint32_t arraySize) {
134 writer.writePointArray(data, arraySize);
135 }
ReadSerializationUtils136 static bool Read(SkReadBuffer& reader, SkPoint* data, uint32_t arraySize) {
137 return reader.readPointArray(data, arraySize);
138 }
139 };
140
141 template<> struct SerializationUtils<SkPoint3> {
WriteSerializationUtils142 static void Write(SkWriteBuffer& writer, const SkPoint3* data) {
143 writer.writePoint3(*data);
144 }
ReadSerializationUtils145 static void Read(SkReadBuffer& reader, SkPoint3* data) {
146 reader.readPoint3(data);
147 }
148 };
149
150 template<> struct SerializationUtils<SkScalar> {
WriteSerializationUtils151 static void Write(SkWriteBuffer& writer, SkScalar* data, uint32_t arraySize) {
152 writer.writeScalarArray(data, arraySize);
153 }
ReadSerializationUtils154 static bool Read(SkReadBuffer& reader, SkScalar* data, uint32_t arraySize) {
155 return reader.readScalarArray(data, arraySize);
156 }
157 };
158
159 template<typename T, bool testInvalid> struct SerializationTestUtils {
InvalidateDataSerializationTestUtils160 static void InvalidateData(unsigned char* data) {}
161 };
162
163 template<> struct SerializationTestUtils<SkString, true> {
InvalidateDataSerializationTestUtils164 static void InvalidateData(unsigned char* data) {
165 data[3] |= 0x80; // Reverse sign of 1st integer
166 }
167 };
168
169 template<typename T, bool testInvalid>
TestObjectSerializationNoAlign(T * testObj,skiatest::Reporter * reporter)170 static void TestObjectSerializationNoAlign(T* testObj, skiatest::Reporter* reporter) {
171 SkBinaryWriteBuffer writer;
172 SerializationUtils<T>::Write(writer, testObj);
173 size_t bytesWritten = writer.bytesWritten();
174 REPORTER_ASSERT(reporter, SkAlign4(bytesWritten) == bytesWritten);
175
176 unsigned char dataWritten[1024];
177 writer.writeToMemory(dataWritten);
178
179 SerializationTestUtils<T, testInvalid>::InvalidateData(dataWritten);
180
181 // Make sure this fails when it should (test with smaller size, but still multiple of 4)
182 SkReadBuffer buffer(dataWritten, bytesWritten - 4);
183 T obj;
184 SerializationUtils<T>::Read(buffer, &obj);
185 REPORTER_ASSERT(reporter, !buffer.isValid());
186
187 // Make sure this succeeds when it should
188 SkReadBuffer buffer2(dataWritten, bytesWritten);
189 size_t offsetBefore = buffer2.offset();
190 T obj2;
191 SerializationUtils<T>::Read(buffer2, &obj2);
192 size_t offsetAfter = buffer2.offset();
193 // This should have succeeded, since there are enough bytes to read this
194 REPORTER_ASSERT(reporter, buffer2.isValid() == !testInvalid);
195 // Note: This following test should always succeed, regardless of whether the buffer is valid,
196 // since if it is invalid, it will simply skip to the end, as if it had read the whole buffer.
197 REPORTER_ASSERT(reporter, offsetAfter - offsetBefore == bytesWritten);
198 }
199
200 template<typename T>
TestObjectSerialization(T * testObj,skiatest::Reporter * reporter)201 static void TestObjectSerialization(T* testObj, skiatest::Reporter* reporter) {
202 TestObjectSerializationNoAlign<T, false>(testObj, reporter);
203 SerializationTest::TestAlignment(testObj, reporter);
204 }
205
206 template<typename T>
TestFlattenableSerialization(T * testObj,bool shouldSucceed,skiatest::Reporter * reporter)207 static T* TestFlattenableSerialization(T* testObj, bool shouldSucceed,
208 skiatest::Reporter* reporter) {
209 SkBinaryWriteBuffer writer;
210 SerializationUtils<T>::Write(writer, testObj);
211 size_t bytesWritten = writer.bytesWritten();
212 REPORTER_ASSERT(reporter, SkAlign4(bytesWritten) == bytesWritten);
213
214 SkASSERT(bytesWritten <= 4096);
215 unsigned char dataWritten[4096];
216 writer.writeToMemory(dataWritten);
217
218 // Make sure this fails when it should (test with smaller size, but still multiple of 4)
219 SkReadBuffer buffer(dataWritten, bytesWritten - 4);
220 T* obj = nullptr;
221 SerializationUtils<T>::Read(buffer, &obj);
222 REPORTER_ASSERT(reporter, !buffer.isValid());
223 REPORTER_ASSERT(reporter, nullptr == obj);
224
225 // Make sure this succeeds when it should
226 SkReadBuffer buffer2(dataWritten, bytesWritten);
227 const unsigned char* peekBefore = static_cast<const unsigned char*>(buffer2.skip(0));
228 T* obj2 = nullptr;
229 SerializationUtils<T>::Read(buffer2, &obj2);
230 const unsigned char* peekAfter = static_cast<const unsigned char*>(buffer2.skip(0));
231 if (shouldSucceed) {
232 // This should have succeeded, since there are enough bytes to read this
233 REPORTER_ASSERT(reporter, buffer2.isValid());
234 REPORTER_ASSERT(reporter, static_cast<size_t>(peekAfter - peekBefore) == bytesWritten);
235 REPORTER_ASSERT(reporter, obj2);
236 } else {
237 // If the deserialization was supposed to fail, make sure it did
238 REPORTER_ASSERT(reporter, !buffer.isValid());
239 REPORTER_ASSERT(reporter, nullptr == obj2);
240 }
241
242 return obj2; // Return object to perform further validity tests on it
243 }
244
245 template<typename T>
TestArraySerialization(T * data,skiatest::Reporter * reporter)246 static void TestArraySerialization(T* data, skiatest::Reporter* reporter) {
247 SkBinaryWriteBuffer writer;
248 SerializationUtils<T>::Write(writer, data, kArraySize);
249 size_t bytesWritten = writer.bytesWritten();
250 // This should write the length (in 4 bytes) and the array
251 REPORTER_ASSERT(reporter, (4 + kArraySize * sizeof(T)) == bytesWritten);
252
253 unsigned char dataWritten[2048];
254 writer.writeToMemory(dataWritten);
255
256 // Make sure this fails when it should
257 SkReadBuffer buffer(dataWritten, bytesWritten);
258 T dataRead[kArraySize];
259 bool success = SerializationUtils<T>::Read(buffer, dataRead, kArraySize / 2);
260 // This should have failed, since the provided size was too small
261 REPORTER_ASSERT(reporter, !success);
262
263 // Make sure this succeeds when it should
264 SkReadBuffer buffer2(dataWritten, bytesWritten);
265 success = SerializationUtils<T>::Read(buffer2, dataRead, kArraySize);
266 // This should have succeeded, since there are enough bytes to read this
267 REPORTER_ASSERT(reporter, success);
268 }
269
TestBitmapSerialization(const SkBitmap & validBitmap,const SkBitmap & invalidBitmap,bool shouldSucceed,skiatest::Reporter * reporter)270 static void TestBitmapSerialization(const SkBitmap& validBitmap,
271 const SkBitmap& invalidBitmap,
272 bool shouldSucceed,
273 skiatest::Reporter* reporter) {
274 sk_sp<SkImage> validImage(validBitmap.asImage());
275 sk_sp<SkImageFilter> validBitmapSource(SkImageFilters::Image(std::move(validImage)));
276 sk_sp<SkImage> invalidImage(invalidBitmap.asImage());
277 sk_sp<SkImageFilter> invalidBitmapSource(SkImageFilters::Image(std::move(invalidImage)));
278 sk_sp<SkImageFilter> xfermodeImageFilter(
279 SkImageFilters::Blend(SkBlendMode::kSrcOver,
280 std::move(invalidBitmapSource),
281 std::move(validBitmapSource), nullptr));
282
283 sk_sp<SkImageFilter> deserializedFilter(
284 TestFlattenableSerialization<SkImageFilter_Base>(
285 (SkImageFilter_Base*)xfermodeImageFilter.get(), shouldSucceed, reporter));
286
287 // Try to render a small bitmap using the invalid deserialized filter
288 // to make sure we don't crash while trying to render it
289 if (shouldSucceed) {
290 SkBitmap bitmap;
291 bitmap.allocN32Pixels(24, 24);
292 SkCanvas canvas(bitmap);
293 canvas.clear(0x00000000);
294 SkPaint paint;
295 paint.setImageFilter(deserializedFilter);
296 canvas.clipRect(SkRect::MakeXYWH(0, 0, SkIntToScalar(24), SkIntToScalar(24)));
297 canvas.drawImage(bitmap.asImage(), 0, 0, SkSamplingOptions(), &paint);
298 }
299 }
300
TestColorFilterSerialization(skiatest::Reporter * reporter)301 static void TestColorFilterSerialization(skiatest::Reporter* reporter) {
302 uint8_t table[256];
303 for (int i = 0; i < 256; ++i) {
304 table[i] = (i * 41) % 256;
305 }
306 auto filter = SkTableColorFilter::Make(table);
307 sk_sp<SkColorFilter> copy(
308 TestFlattenableSerialization(as_CFB(filter.get()), true, reporter));
309 }
310
draw_picture(SkPicture & picture)311 static SkBitmap draw_picture(SkPicture& picture) {
312 SkBitmap bitmap;
313 bitmap.allocN32Pixels(SkScalarCeilToInt(picture.cullRect().width()),
314 SkScalarCeilToInt(picture.cullRect().height()));
315 SkCanvas canvas(bitmap);
316 picture.playback(&canvas);
317 return bitmap;
318 }
319
compare_bitmaps(skiatest::Reporter * reporter,const SkBitmap & b1,const SkBitmap & b2)320 static void compare_bitmaps(skiatest::Reporter* reporter,
321 const SkBitmap& b1, const SkBitmap& b2) {
322 REPORTER_ASSERT(reporter, b1.width() == b2.width());
323 REPORTER_ASSERT(reporter, b1.height() == b2.height());
324
325 if ((b1.width() != b2.width()) ||
326 (b1.height() != b2.height())) {
327 return;
328 }
329
330 int pixelErrors = 0;
331 for (int y = 0; y < b2.height(); ++y) {
332 for (int x = 0; x < b2.width(); ++x) {
333 if (b1.getColor(x, y) != b2.getColor(x, y))
334 ++pixelErrors;
335 }
336 }
337 REPORTER_ASSERT(reporter, 0 == pixelErrors);
338 }
339
serialize_typeface_proc(SkTypeface * typeface,void * ctx)340 static sk_sp<SkData> serialize_typeface_proc(SkTypeface* typeface, void* ctx) {
341 // Write out typeface ID followed by entire typeface.
342 SkDynamicMemoryWStream stream;
343 sk_sp<SkData> data(typeface->serialize(SkTypeface::SerializeBehavior::kDoIncludeData));
344 uint32_t typeface_id = typeface->uniqueID();
345 stream.write(&typeface_id, sizeof(typeface_id));
346 stream.write(data->data(), data->size());
347 return stream.detachAsData();
348 }
349
deserialize_typeface_proc(const void * data,size_t length,void * ctx)350 static sk_sp<SkTypeface> deserialize_typeface_proc(const void* data, size_t length, void* ctx) {
351 SkStream* stream;
352 if (length < sizeof(stream)) {
353 return nullptr;
354 }
355 memcpy(&stream, data, sizeof(stream));
356
357 SkFontID id;
358 if (!stream->read(&id, sizeof(id))) {
359 return nullptr;
360 }
361
362 sk_sp<SkTypeface> typeface = SkTypeface::MakeDeserialize(stream);
363 return typeface;
364 }
365
serialize_and_compare_typeface(sk_sp<SkTypeface> typeface,const char * text,const SkSerialProcs * serial_procs,const SkDeserialProcs * deserial_procs,skiatest::Reporter * reporter)366 static void serialize_and_compare_typeface(sk_sp<SkTypeface> typeface,
367 const char* text,
368 const SkSerialProcs* serial_procs,
369 const SkDeserialProcs* deserial_procs,
370 skiatest::Reporter* reporter) {
371 // Create a font with the typeface.
372 SkPaint paint;
373 paint.setColor(SK_ColorGRAY);
374 SkFont font(std::move(typeface), 30);
375
376 // Paint some text.
377 SkPictureRecorder recorder;
378 SkIRect canvasRect = SkIRect::MakeWH(kBitmapSize, kBitmapSize);
379 SkCanvas* canvas = recorder.beginRecording(SkIntToScalar(canvasRect.width()),
380 SkIntToScalar(canvasRect.height()));
381 canvas->drawColor(SK_ColorWHITE);
382 canvas->drawString(text, 24, 32, font, paint);
383 sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
384
385 // Serlialize picture and create its clone from stream.
386 SkDynamicMemoryWStream stream;
387 picture->serialize(&stream, serial_procs);
388 std::unique_ptr<SkStream> inputStream(stream.detachAsStream());
389 sk_sp<SkPicture> loadedPicture(SkPicture::MakeFromStream(inputStream.get(), deserial_procs));
390
391 // Draw both original and clone picture and compare bitmaps -- they should be identical.
392 SkBitmap origBitmap = draw_picture(*picture);
393 SkBitmap destBitmap = draw_picture(*loadedPicture);
394 compare_bitmaps(reporter, origBitmap, destBitmap);
395 }
396
makeDistortableWithNonDefaultAxes(skiatest::Reporter * reporter)397 static sk_sp<SkTypeface> makeDistortableWithNonDefaultAxes(skiatest::Reporter* reporter) {
398 std::unique_ptr<SkStreamAsset> distortable(GetResourceAsStream("fonts/Distortable.ttf"));
399 if (!distortable) {
400 REPORT_FAILURE(reporter, "distortable", SkString());
401 return nullptr;
402 }
403
404 const SkFontArguments::VariationPosition::Coordinate position[] = {
405 { SkSetFourByteTag('w','g','h','t'), SK_ScalarSqrt2 },
406 };
407 SkFontArguments params;
408 params.setVariationDesignPosition({position, SK_ARRAY_COUNT(position)});
409
410 sk_sp<SkFontMgr> fm = SkFontMgr::RefDefault();
411
412 sk_sp<SkTypeface> typeface = fm->makeFromStream(std::move(distortable), params);
413 if (!typeface) {
414 return nullptr; // Not all SkFontMgr can makeFromStream().
415 }
416
417 int count = typeface->getVariationDesignPosition(nullptr, 0);
418 if (count == -1) {
419 return nullptr; // The number of axes is unknown.
420 }
421
422 return typeface;
423 }
424
TestPictureTypefaceSerialization(const SkSerialProcs * serial_procs,const SkDeserialProcs * deserial_procs,skiatest::Reporter * reporter)425 static void TestPictureTypefaceSerialization(const SkSerialProcs* serial_procs,
426 const SkDeserialProcs* deserial_procs,
427 skiatest::Reporter* reporter) {
428 if (serial_procs != nullptr) {
429 {
430 // Load typeface from file to test CreateFromFile with index.
431 auto typeface = MakeResourceAsTypeface("fonts/test.ttc", 1);
432 if (!typeface) {
433 INFOF(reporter, "Could not run fontstream test because test.ttc not found.");
434 } else {
435 serialize_and_compare_typeface(std::move(typeface), "A!", serial_procs, deserial_procs,
436 reporter);
437 }
438 }
439
440 {
441 // Load typeface as stream to create with axis settings.
442 auto typeface = makeDistortableWithNonDefaultAxes(reporter);
443 if (!typeface) {
444 INFOF(reporter, "Could not run fontstream test because Distortable.ttf not created.");
445 } else {
446 serialize_and_compare_typeface(std::move(typeface), "ab", serial_procs,
447 deserial_procs, reporter);
448 }
449 }
450 }
451 }
452
TestTypefaceSerialization(skiatest::Reporter * reporter,sk_sp<SkTypeface> typeface)453 static void TestTypefaceSerialization(skiatest::Reporter* reporter, sk_sp<SkTypeface> typeface) {
454 SkDynamicMemoryWStream typefaceWStream;
455 typeface->serialize(&typefaceWStream);
456
457 std::unique_ptr<SkStream> typefaceStream = typefaceWStream.detachAsStream();
458 sk_sp<SkTypeface> cloneTypeface = SkTypeface::MakeDeserialize(typefaceStream.get());
459 SkASSERT(cloneTypeface);
460
461 SkString name, cloneName;
462 typeface->getFamilyName(&name);
463 cloneTypeface->getFamilyName(&cloneName);
464
465 REPORTER_ASSERT(reporter, typeface->countGlyphs() == cloneTypeface->countGlyphs(),
466 "Typeface: \"%s\" CloneTypeface: \"%s\"", name.c_str(), cloneName.c_str());
467 REPORTER_ASSERT(reporter, typeface->fontStyle() == cloneTypeface->fontStyle(),
468 "Typeface: \"%s\" CloneTypeface: \"%s\"", name.c_str(), cloneName.c_str());
469
470 SkFont font(typeface, 12);
471 SkFont clone(cloneTypeface, 12);
472 SkFontMetrics fontMetrics, cloneMetrics;
473 font.getMetrics(&fontMetrics);
474 clone.getMetrics(&cloneMetrics);
475 REPORTER_ASSERT(reporter, fontMetrics == cloneMetrics,
476 "Typeface: \"%s\" CloneTypeface: \"%s\"", name.c_str(), cloneName.c_str());
477 }
478
479 #ifdef SKIA_COMPILE_DM_ALL
DEF_TEST(Serialization_Typeface,reporter)480 DEF_TEST(Serialization_Typeface, reporter) {
481 SkFont font;
482 TestTypefaceSerialization(reporter, font.refTypefaceOrDefault());
483 TestTypefaceSerialization(reporter, ToolUtils::sample_user_typeface());
484 }
485 #endif
486
setup_bitmap_for_canvas(SkBitmap * bitmap)487 static void setup_bitmap_for_canvas(SkBitmap* bitmap) {
488 bitmap->allocN32Pixels(kBitmapSize, kBitmapSize);
489 }
490
make_checkerboard_image()491 static sk_sp<SkImage> make_checkerboard_image() {
492 SkBitmap bitmap;
493 setup_bitmap_for_canvas(&bitmap);
494
495 SkCanvas canvas(bitmap);
496 canvas.clear(0x00000000);
497 SkPaint darkPaint;
498 darkPaint.setColor(0xFF804020);
499 SkPaint lightPaint;
500 lightPaint.setColor(0xFF244484);
501 const int i = kBitmapSize / 8;
502 const SkScalar f = SkIntToScalar(i);
503 for (int y = 0; y < kBitmapSize; y += i) {
504 for (int x = 0; x < kBitmapSize; x += i) {
505 canvas.save();
506 canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
507 canvas.drawRect(SkRect::MakeXYWH(0, 0, f, f), darkPaint);
508 canvas.drawRect(SkRect::MakeXYWH(f, 0, f, f), lightPaint);
509 canvas.drawRect(SkRect::MakeXYWH(0, f, f, f), lightPaint);
510 canvas.drawRect(SkRect::MakeXYWH(f, f, f, f), darkPaint);
511 canvas.restore();
512 }
513 }
514 return bitmap.asImage();
515 }
516
draw_something(SkCanvas * canvas)517 static void draw_something(SkCanvas* canvas) {
518 canvas->save();
519 canvas->scale(0.5f, 0.5f);
520 canvas->drawImage(make_checkerboard_image(), 0, 0);
521 canvas->restore();
522
523 SkPaint paint;
524 paint.setAntiAlias(true);
525 paint.setColor(SK_ColorRED);
526 canvas->drawCircle(SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/3), paint);
527 paint.setColor(SK_ColorBLACK);
528
529 SkFont font;
530 font.setSize(kBitmapSize/3);
531 canvas->drawString("Picture", SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/4), font, paint);
532 }
533
render(const SkPicture & p)534 static sk_sp<SkImage> render(const SkPicture& p) {
535 auto surf = SkSurface::MakeRasterN32Premul(SkScalarRoundToInt(p.cullRect().width()),
536 SkScalarRoundToInt(p.cullRect().height()));
537 if (!surf) {
538 return nullptr; // bounds are empty?
539 }
540 surf->getCanvas()->clear(SK_ColorWHITE);
541 p.playback(surf->getCanvas());
542 return surf->makeImageSnapshot();
543 }
544
DEF_TEST(Serialization,reporter)545 DEF_TEST(Serialization, reporter) {
546 // Test matrix serialization
547 {
548 SkMatrix matrix = SkMatrix::I();
549 TestObjectSerialization(&matrix, reporter);
550 }
551
552 // Test point3 serialization
553 {
554 SkPoint3 point;
555 TestObjectSerializationNoAlign<SkPoint3, false>(&point, reporter);
556 }
557
558 // Test path serialization
559 {
560 SkPath path;
561 TestObjectSerialization(&path, reporter);
562 }
563
564 // Test region serialization
565 {
566 SkRegion region;
567 TestObjectSerialization(®ion, reporter);
568 }
569
570 // Test color filter serialization
571 {
572 TestColorFilterSerialization(reporter);
573 }
574
575 // Test string serialization
576 {
577 SkString string("string");
578 TestObjectSerializationNoAlign<SkString, false>(&string, reporter);
579 TestObjectSerializationNoAlign<SkString, true>(&string, reporter);
580 }
581
582 // Test rrect serialization
583 {
584 // SkRRect does not initialize anything.
585 // An uninitialized SkRRect can be serialized,
586 // but will branch on uninitialized data when deserialized.
587 SkRRect rrect;
588 SkRect rect = SkRect::MakeXYWH(1, 2, 20, 30);
589 SkVector corners[4] = { {1, 2}, {2, 3}, {3,4}, {4,5} };
590 rrect.setRectRadii(rect, corners);
591 SerializationTest::TestAlignment(&rrect, reporter);
592 }
593
594 // Test readByteArray
595 {
596 unsigned char data[kArraySize] = { 1, 2, 3 };
597 TestArraySerialization(data, reporter);
598 }
599
600 // Test readColorArray
601 {
602 SkColor data[kArraySize] = { SK_ColorBLACK, SK_ColorWHITE, SK_ColorRED };
603 TestArraySerialization(data, reporter);
604 }
605
606 // Test readColor4fArray
607 {
608 SkColor4f data[kArraySize] = {
609 SkColor4f::FromColor(SK_ColorBLACK),
610 SkColor4f::FromColor(SK_ColorWHITE),
611 SkColor4f::FromColor(SK_ColorRED),
612 { 1.f, 2.f, 4.f, 8.f }
613 };
614 TestArraySerialization(data, reporter);
615 }
616
617 // Test readIntArray
618 {
619 int32_t data[kArraySize] = { 1, 2, 4, 8 };
620 TestArraySerialization(data, reporter);
621 }
622
623 // Test readPointArray
624 {
625 SkPoint data[kArraySize] = { {6, 7}, {42, 128} };
626 TestArraySerialization(data, reporter);
627 }
628
629 // Test readScalarArray
630 {
631 SkScalar data[kArraySize] = { SK_Scalar1, SK_ScalarHalf, SK_ScalarMax };
632 TestArraySerialization(data, reporter);
633 }
634
635 // Test skipByteArray
636 {
637 // Valid case with non-empty array:
638 {
639 unsigned char data[kArraySize] = { 1, 2, 3 };
640 SkBinaryWriteBuffer writer;
641 writer.writeByteArray(data, kArraySize);
642 SkAutoMalloc buf(writer.bytesWritten());
643 writer.writeToMemory(buf.get());
644
645 SkReadBuffer reader(buf.get(), writer.bytesWritten());
646 size_t len = ~0;
647 const void* arr = reader.skipByteArray(&len);
648 REPORTER_ASSERT(reporter, arr);
649 REPORTER_ASSERT(reporter, len == kArraySize);
650 REPORTER_ASSERT(reporter, memcmp(arr, data, len) == 0);
651 }
652
653 // Writing a zero length array (can be detected as valid by non-nullptr return):
654 {
655 SkBinaryWriteBuffer writer;
656 writer.writeByteArray(nullptr, 0);
657 SkAutoMalloc buf(writer.bytesWritten());
658 writer.writeToMemory(buf.get());
659
660 SkReadBuffer reader(buf.get(), writer.bytesWritten());
661 size_t len = ~0;
662 const void* arr = reader.skipByteArray(&len);
663 REPORTER_ASSERT(reporter, arr);
664 REPORTER_ASSERT(reporter, len == 0);
665 }
666
667 // If the array can't be safely read, should return nullptr:
668 {
669 SkBinaryWriteBuffer writer;
670 writer.writeUInt(kArraySize);
671 SkAutoMalloc buf(writer.bytesWritten());
672 writer.writeToMemory(buf.get());
673
674 SkReadBuffer reader(buf.get(), writer.bytesWritten());
675 size_t len = ~0;
676 const void* arr = reader.skipByteArray(&len);
677 REPORTER_ASSERT(reporter, !arr);
678 REPORTER_ASSERT(reporter, len == 0);
679 }
680 }
681
682 // Test invalid deserializations
683 {
684 SkImageInfo info = SkImageInfo::MakeN32Premul(kBitmapSize, kBitmapSize);
685
686 SkBitmap validBitmap;
687 validBitmap.setInfo(info);
688
689 // Create a bitmap with a really large height
690 SkBitmap invalidBitmap;
691 invalidBitmap.setInfo(info.makeWH(info.width(), 1000000000));
692
693 // The deserialization should succeed, and the rendering shouldn't crash,
694 // even when the device fails to initialize, due to its size
695 TestBitmapSerialization(validBitmap, invalidBitmap, true, reporter);
696 }
697
698 // Test simple SkPicture serialization
699 {
700 SkPictureRecorder recorder;
701 draw_something(recorder.beginRecording(SkIntToScalar(kBitmapSize),
702 SkIntToScalar(kBitmapSize)));
703 sk_sp<SkPicture> pict(recorder.finishRecordingAsPicture());
704
705 // Serialize picture
706 SkBinaryWriteBuffer writer;
707 SkPicturePriv::Flatten(pict, writer);
708 size_t size = writer.bytesWritten();
709 SkAutoTMalloc<unsigned char> data(size);
710 writer.writeToMemory(static_cast<void*>(data.get()));
711
712 // Deserialize picture
713 SkReadBuffer reader(static_cast<void*>(data.get()), size);
714 sk_sp<SkPicture> readPict(SkPicturePriv::MakeFromBuffer(reader));
715 REPORTER_ASSERT(reporter, reader.isValid());
716 REPORTER_ASSERT(reporter, readPict.get());
717 sk_sp<SkImage> img0 = render(*pict);
718 sk_sp<SkImage> img1 = render(*readPict);
719 if (img0 && img1) {
720 REPORTER_ASSERT(reporter, ToolUtils::equal_pixels(img0.get(), img1.get()));
721 }
722 }
723
724 TestPictureTypefaceSerialization(nullptr, nullptr, reporter);
725
726 SkSerialProcs serial_procs;
727 serial_procs.fTypefaceProc = serialize_typeface_proc;
728 SkDeserialProcs deserial_procs;
729 deserial_procs.fTypefaceProc = deserialize_typeface_proc;
730 TestPictureTypefaceSerialization(&serial_procs, &deserial_procs, reporter);
731 }
732
733 ///////////////////////////////////////////////////////////////////////////////////////////////////
734 #include "include/core/SkAnnotation.h"
735
copy_picture_via_serialization(SkPicture * src)736 static sk_sp<SkPicture> copy_picture_via_serialization(SkPicture* src) {
737 SkDynamicMemoryWStream wstream;
738 src->serialize(&wstream);
739 std::unique_ptr<SkStreamAsset> rstream(wstream.detachAsStream());
740 return SkPicture::MakeFromStream(rstream.get());
741 }
742
743 struct AnnotationRec {
744 const SkRect fRect;
745 const char* fKey;
746 sk_sp<SkData> fValue;
747 };
748
749 class TestAnnotationCanvas : public SkCanvas {
750 skiatest::Reporter* fReporter;
751 const AnnotationRec* fRec;
752 int fCount;
753 int fCurrIndex;
754
755 public:
TestAnnotationCanvas(skiatest::Reporter * reporter,const AnnotationRec rec[],int count)756 TestAnnotationCanvas(skiatest::Reporter* reporter, const AnnotationRec rec[], int count)
757 : SkCanvas(100, 100)
758 , fReporter(reporter)
759 , fRec(rec)
760 , fCount(count)
761 , fCurrIndex(0)
762 {}
763
~TestAnnotationCanvas()764 ~TestAnnotationCanvas() override {
765 REPORTER_ASSERT(fReporter, fCount == fCurrIndex);
766 }
767
768 protected:
onDrawAnnotation(const SkRect & rect,const char key[],SkData * value)769 void onDrawAnnotation(const SkRect& rect, const char key[], SkData* value) override {
770 REPORTER_ASSERT(fReporter, fCurrIndex < fCount);
771 REPORTER_ASSERT(fReporter, rect == fRec[fCurrIndex].fRect);
772 REPORTER_ASSERT(fReporter, !strcmp(key, fRec[fCurrIndex].fKey));
773 REPORTER_ASSERT(fReporter, value->equals(fRec[fCurrIndex].fValue.get()));
774 fCurrIndex += 1;
775 }
776 };
777
778 /*
779 * Test the 3 annotation types by recording them into a picture, serializing, and then playing
780 * them back into another canvas.
781 */
DEF_TEST(Annotations,reporter)782 DEF_TEST(Annotations, reporter) {
783 SkPictureRecorder recorder;
784 SkCanvas* recordingCanvas = recorder.beginRecording(SkRect::MakeWH(100, 100));
785
786 const char* str0 = "rect-with-url";
787 const SkRect r0 = SkRect::MakeWH(10, 10);
788 sk_sp<SkData> d0(SkData::MakeWithCString(str0));
789 SkAnnotateRectWithURL(recordingCanvas, r0, d0.get());
790
791 const char* str1 = "named-destination";
792 const SkRect r1 = SkRect::MakeXYWH(5, 5, 0, 0); // collapsed to a point
793 sk_sp<SkData> d1(SkData::MakeWithCString(str1));
794 SkAnnotateNamedDestination(recordingCanvas, {r1.x(), r1.y()}, d1.get());
795
796 const char* str2 = "link-to-destination";
797 const SkRect r2 = SkRect::MakeXYWH(20, 20, 5, 6);
798 sk_sp<SkData> d2(SkData::MakeWithCString(str2));
799 SkAnnotateLinkToDestination(recordingCanvas, r2, d2.get());
800
801 const AnnotationRec recs[] = {
802 { r0, SkAnnotationKeys::URL_Key(), std::move(d0) },
803 { r1, SkAnnotationKeys::Define_Named_Dest_Key(), std::move(d1) },
804 { r2, SkAnnotationKeys::Link_Named_Dest_Key(), std::move(d2) },
805 };
806
807 sk_sp<SkPicture> pict0(recorder.finishRecordingAsPicture());
808 sk_sp<SkPicture> pict1(copy_picture_via_serialization(pict0.get()));
809
810 TestAnnotationCanvas canvas(reporter, recs, SK_ARRAY_COUNT(recs));
811 canvas.drawPicture(pict1);
812 }
813
DEF_TEST(WriteBuffer_storage,reporter)814 DEF_TEST(WriteBuffer_storage, reporter) {
815 enum {
816 kSize = 32
817 };
818 int32_t storage[kSize/4];
819 char src[kSize];
820 sk_bzero(src, kSize);
821
822 SkBinaryWriteBuffer writer(storage, kSize);
823 REPORTER_ASSERT(reporter, writer.usingInitialStorage());
824 REPORTER_ASSERT(reporter, writer.bytesWritten() == 0);
825 writer.write(src, kSize - 4);
826 REPORTER_ASSERT(reporter, writer.usingInitialStorage());
827 REPORTER_ASSERT(reporter, writer.bytesWritten() == kSize - 4);
828 writer.writeInt(0);
829 REPORTER_ASSERT(reporter, writer.usingInitialStorage());
830 REPORTER_ASSERT(reporter, writer.bytesWritten() == kSize);
831
832 writer.reset(storage, kSize-4);
833 REPORTER_ASSERT(reporter, writer.usingInitialStorage());
834 REPORTER_ASSERT(reporter, writer.bytesWritten() == 0);
835 writer.write(src, kSize - 4);
836 REPORTER_ASSERT(reporter, writer.usingInitialStorage());
837 REPORTER_ASSERT(reporter, writer.bytesWritten() == kSize - 4);
838 writer.writeInt(0);
839 REPORTER_ASSERT(reporter, !writer.usingInitialStorage()); // this is the change
840 REPORTER_ASSERT(reporter, writer.bytesWritten() == kSize);
841 }
842
DEF_TEST(WriteBuffer_external_memory_textblob,reporter)843 DEF_TEST(WriteBuffer_external_memory_textblob, reporter) {
844 SkFont font;
845 font.setTypeface(SkTypeface::MakeDefault());
846
847 SkTextBlobBuilder builder;
848 int glyph_count = 5;
849 const auto& run = builder.allocRun(font, glyph_count, 1.2f, 2.3f);
850 // allocRun() allocates only the glyph buffer.
851 std::fill(run.glyphs, run.glyphs + glyph_count, 0);
852 auto blob = builder.make();
853 SkSerialProcs procs;
854 SkAutoTMalloc<uint8_t> storage;
855 size_t blob_size = 0u;
856 size_t storage_size = 0u;
857
858 blob_size = SkAlign4(blob->serialize(procs)->size());
859 REPORTER_ASSERT(reporter, blob_size > 4u);
860 storage_size = blob_size - 4;
861 storage.realloc(storage_size);
862 REPORTER_ASSERT(reporter, blob->serialize(procs, storage.get(), storage_size) == 0u);
863 storage_size = blob_size;
864 storage.realloc(storage_size);
865 REPORTER_ASSERT(reporter, blob->serialize(procs, storage.get(), storage_size) != 0u);
866 }
867
DEF_TEST(WriteBuffer_external_memory_flattenable,reporter)868 DEF_TEST(WriteBuffer_external_memory_flattenable, reporter) {
869 SkScalar intervals[] = {1.f, 1.f};
870 auto path_effect = SkDashPathEffect::Make(intervals, 2, 0);
871 size_t path_size = SkAlign4(path_effect->serialize()->size());
872 REPORTER_ASSERT(reporter, path_size > 4u);
873 SkAutoTMalloc<uint8_t> storage;
874
875 size_t storage_size = path_size - 4;
876 storage.realloc(storage_size);
877 REPORTER_ASSERT(reporter, path_effect->serialize(storage.get(), storage_size) == 0u);
878
879 storage_size = path_size;
880 storage.realloc(storage_size);
881 REPORTER_ASSERT(reporter, path_effect->serialize(storage.get(), storage_size) != 0u);
882 }
883
DEF_TEST(ReadBuffer_empty,reporter)884 DEF_TEST(ReadBuffer_empty, reporter) {
885 SkBinaryWriteBuffer writer;
886 writer.writeInt(123);
887 writer.writeDataAsByteArray(SkData::MakeEmpty().get());
888 writer.writeInt(321);
889
890 size_t size = writer.bytesWritten();
891 SkAutoMalloc storage(size);
892 writer.writeToMemory(storage.get());
893
894 SkReadBuffer reader(storage.get(), size);
895 REPORTER_ASSERT(reporter, reader.readInt() == 123);
896 auto data = reader.readByteArrayAsData();
897 REPORTER_ASSERT(reporter, data->size() == 0);
898 REPORTER_ASSERT(reporter, reader.readInt() == 321);
899 }
900