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 "Resources.h"
9#include "SkAnnotationKeys.h"
10#include "SkCanvas.h"
11#include "SkFixed.h"
12#include "SkFontDescriptor.h"
13#include "SkImage.h"
14#include "SkImageSource.h"
15#include "SkMakeUnique.h"
16#include "SkMallocPixelRef.h"
17#include "SkMatrixPriv.h"
18#include "SkOSFile.h"
19#include "SkReadBuffer.h"
20#include "SkPictureRecorder.h"
21#include "SkShaderBase.h"
22#include "SkTableColorFilter.h"
23#include "SkTemplates.h"
24#include "SkTypeface.h"
25#include "SkWriteBuffer.h"
26#include "SkXfermodeImageFilter.h"
27#include "sk_tool_utils.h"
28#include "Test.h"
29
30static const uint32_t kArraySize = 64;
31static const int kBitmapSize = 256;
32
33class SerializationTest {
34public:
35
36template<typename T>
37static void TestAlignment(T* testObj, skiatest::Reporter* reporter) {
38    // Test memory read/write functions directly
39    unsigned char dataWritten[1024];
40    size_t bytesWrittenToMemory = testObj->writeToMemory(dataWritten);
41    REPORTER_ASSERT(reporter, SkAlign4(bytesWrittenToMemory) == bytesWrittenToMemory);
42    size_t bytesReadFromMemory = testObj->readFromMemory(dataWritten, bytesWrittenToMemory);
43    REPORTER_ASSERT(reporter, SkAlign4(bytesReadFromMemory) == bytesReadFromMemory);
44}
45};
46
47template<typename T> struct SerializationUtils {
48    // Generic case for flattenables
49    static void Write(SkWriteBuffer& writer, const T* flattenable) {
50        writer.writeFlattenable(flattenable);
51    }
52    static void Read(SkReadBuffer& reader, T** flattenable) {
53        *flattenable = (T*)reader.readFlattenable(T::GetFlattenableType());
54    }
55};
56
57template<> struct SerializationUtils<SkMatrix> {
58    static void Write(SkWriteBuffer& writer, const SkMatrix* matrix) {
59        writer.writeMatrix(*matrix);
60    }
61    static void Read(SkReadBuffer& reader, SkMatrix* matrix) {
62        reader.readMatrix(matrix);
63    }
64};
65
66template<> struct SerializationUtils<SkPath> {
67    static void Write(SkWriteBuffer& writer, const SkPath* path) {
68        writer.writePath(*path);
69    }
70    static void Read(SkReadBuffer& reader, SkPath* path) {
71        reader.readPath(path);
72    }
73};
74
75template<> struct SerializationUtils<SkRegion> {
76    static void Write(SkWriteBuffer& writer, const SkRegion* region) {
77        writer.writeRegion(*region);
78    }
79    static void Read(SkReadBuffer& reader, SkRegion* region) {
80        reader.readRegion(region);
81    }
82};
83
84template<> struct SerializationUtils<SkString> {
85    static void Write(SkWriteBuffer& writer, const SkString* string) {
86        writer.writeString(string->c_str());
87    }
88    static void Read(SkReadBuffer& reader, SkString* string) {
89        reader.readString(string);
90    }
91};
92
93template<> struct SerializationUtils<unsigned char> {
94    static void Write(SkWriteBuffer& writer, unsigned char* data, uint32_t arraySize) {
95        writer.writeByteArray(data, arraySize);
96    }
97    static bool Read(SkReadBuffer& reader, unsigned char* data, uint32_t arraySize) {
98        return reader.readByteArray(data, arraySize);
99    }
100};
101
102template<> struct SerializationUtils<SkColor> {
103    static void Write(SkWriteBuffer& writer, SkColor* data, uint32_t arraySize) {
104        writer.writeColorArray(data, arraySize);
105    }
106    static bool Read(SkReadBuffer& reader, SkColor* data, uint32_t arraySize) {
107        return reader.readColorArray(data, arraySize);
108    }
109};
110
111template<> struct SerializationUtils<SkColor4f> {
112    static void Write(SkWriteBuffer& writer, SkColor4f* data, uint32_t arraySize) {
113        writer.writeColor4fArray(data, arraySize);
114    }
115    static bool Read(SkReadBuffer& reader, SkColor4f* data, uint32_t arraySize) {
116        return reader.readColor4fArray(data, arraySize);
117    }
118};
119
120template<> struct SerializationUtils<int32_t> {
121    static void Write(SkWriteBuffer& writer, int32_t* data, uint32_t arraySize) {
122        writer.writeIntArray(data, arraySize);
123    }
124    static bool Read(SkReadBuffer& reader, int32_t* data, uint32_t arraySize) {
125        return reader.readIntArray(data, arraySize);
126    }
127};
128
129template<> struct SerializationUtils<SkPoint> {
130    static void Write(SkWriteBuffer& writer, SkPoint* data, uint32_t arraySize) {
131        writer.writePointArray(data, arraySize);
132    }
133    static bool Read(SkReadBuffer& reader, SkPoint* data, uint32_t arraySize) {
134        return reader.readPointArray(data, arraySize);
135    }
136};
137
138template<> struct SerializationUtils<SkScalar> {
139    static void Write(SkWriteBuffer& writer, SkScalar* data, uint32_t arraySize) {
140        writer.writeScalarArray(data, arraySize);
141    }
142    static bool Read(SkReadBuffer& reader, SkScalar* data, uint32_t arraySize) {
143        return reader.readScalarArray(data, arraySize);
144    }
145};
146
147template<typename T, bool testInvalid> struct SerializationTestUtils {
148    static void InvalidateData(unsigned char* data) {}
149};
150
151template<> struct SerializationTestUtils<SkString, true> {
152    static void InvalidateData(unsigned char* data) {
153        data[3] |= 0x80; // Reverse sign of 1st integer
154    }
155};
156
157template<typename T, bool testInvalid>
158static void TestObjectSerializationNoAlign(T* testObj, skiatest::Reporter* reporter) {
159    SkBinaryWriteBuffer writer;
160    SerializationUtils<T>::Write(writer, testObj);
161    size_t bytesWritten = writer.bytesWritten();
162    REPORTER_ASSERT(reporter, SkAlign4(bytesWritten) == bytesWritten);
163
164    unsigned char dataWritten[1024];
165    writer.writeToMemory(dataWritten);
166
167    SerializationTestUtils<T, testInvalid>::InvalidateData(dataWritten);
168
169    // Make sure this fails when it should (test with smaller size, but still multiple of 4)
170    SkReadBuffer buffer(dataWritten, bytesWritten - 4);
171    T obj;
172    SerializationUtils<T>::Read(buffer, &obj);
173    REPORTER_ASSERT(reporter, !buffer.isValid());
174
175    // Make sure this succeeds when it should
176    SkReadBuffer buffer2(dataWritten, bytesWritten);
177    size_t offsetBefore = buffer2.offset();
178    T obj2;
179    SerializationUtils<T>::Read(buffer2, &obj2);
180    size_t offsetAfter = buffer2.offset();
181    // This should have succeeded, since there are enough bytes to read this
182    REPORTER_ASSERT(reporter, buffer2.isValid() == !testInvalid);
183    // Note: This following test should always succeed, regardless of whether the buffer is valid,
184    // since if it is invalid, it will simply skip to the end, as if it had read the whole buffer.
185    REPORTER_ASSERT(reporter, offsetAfter - offsetBefore == bytesWritten);
186}
187
188template<typename T>
189static void TestObjectSerialization(T* testObj, skiatest::Reporter* reporter) {
190    TestObjectSerializationNoAlign<T, false>(testObj, reporter);
191    SerializationTest::TestAlignment(testObj, reporter);
192}
193
194template<typename T>
195static T* TestFlattenableSerialization(T* testObj, bool shouldSucceed,
196                                       skiatest::Reporter* reporter) {
197    SkBinaryWriteBuffer writer;
198    SerializationUtils<T>::Write(writer, testObj);
199    size_t bytesWritten = writer.bytesWritten();
200    REPORTER_ASSERT(reporter, SkAlign4(bytesWritten) == bytesWritten);
201
202    SkASSERT(bytesWritten <= 4096);
203    unsigned char dataWritten[4096];
204    writer.writeToMemory(dataWritten);
205
206    // Make sure this fails when it should (test with smaller size, but still multiple of 4)
207    SkReadBuffer buffer(dataWritten, bytesWritten - 4);
208    T* obj = nullptr;
209    SerializationUtils<T>::Read(buffer, &obj);
210    REPORTER_ASSERT(reporter, !buffer.isValid());
211    REPORTER_ASSERT(reporter, nullptr == obj);
212
213    // Make sure this succeeds when it should
214    SkReadBuffer buffer2(dataWritten, bytesWritten);
215    const unsigned char* peekBefore = static_cast<const unsigned char*>(buffer2.skip(0));
216    T* obj2 = nullptr;
217    SerializationUtils<T>::Read(buffer2, &obj2);
218    const unsigned char* peekAfter = static_cast<const unsigned char*>(buffer2.skip(0));
219    if (shouldSucceed) {
220        // This should have succeeded, since there are enough bytes to read this
221        REPORTER_ASSERT(reporter, buffer2.isValid());
222        REPORTER_ASSERT(reporter, static_cast<size_t>(peekAfter - peekBefore) == bytesWritten);
223        REPORTER_ASSERT(reporter, obj2);
224    } else {
225        // If the deserialization was supposed to fail, make sure it did
226        REPORTER_ASSERT(reporter, !buffer.isValid());
227        REPORTER_ASSERT(reporter, nullptr == obj2);
228    }
229
230    return obj2; // Return object to perform further validity tests on it
231}
232
233template<typename T>
234static void TestArraySerialization(T* data, skiatest::Reporter* reporter) {
235    SkBinaryWriteBuffer writer;
236    SerializationUtils<T>::Write(writer, data, kArraySize);
237    size_t bytesWritten = writer.bytesWritten();
238    // This should write the length (in 4 bytes) and the array
239    REPORTER_ASSERT(reporter, (4 + kArraySize * sizeof(T)) == bytesWritten);
240
241    unsigned char dataWritten[2048];
242    writer.writeToMemory(dataWritten);
243
244    // Make sure this fails when it should
245    SkReadBuffer buffer(dataWritten, bytesWritten);
246    T dataRead[kArraySize];
247    bool success = SerializationUtils<T>::Read(buffer, dataRead, kArraySize / 2);
248    // This should have failed, since the provided size was too small
249    REPORTER_ASSERT(reporter, !success);
250
251    // Make sure this succeeds when it should
252    SkReadBuffer buffer2(dataWritten, bytesWritten);
253    success = SerializationUtils<T>::Read(buffer2, dataRead, kArraySize);
254    // This should have succeeded, since there are enough bytes to read this
255    REPORTER_ASSERT(reporter, success);
256}
257
258static void TestBitmapSerialization(const SkBitmap& validBitmap,
259                                    const SkBitmap& invalidBitmap,
260                                    bool shouldSucceed,
261                                    skiatest::Reporter* reporter) {
262    sk_sp<SkImage> validImage(SkImage::MakeFromBitmap(validBitmap));
263    sk_sp<SkImageFilter> validBitmapSource(SkImageSource::Make(std::move(validImage)));
264    sk_sp<SkImage> invalidImage(SkImage::MakeFromBitmap(invalidBitmap));
265    sk_sp<SkImageFilter> invalidBitmapSource(SkImageSource::Make(std::move(invalidImage)));
266    sk_sp<SkImageFilter> xfermodeImageFilter(
267        SkXfermodeImageFilter::Make(SkBlendMode::kSrcOver,
268                                    std::move(invalidBitmapSource),
269                                    std::move(validBitmapSource), nullptr));
270
271    sk_sp<SkImageFilter> deserializedFilter(
272        TestFlattenableSerialization<SkImageFilter>(
273            xfermodeImageFilter.get(), shouldSucceed, reporter));
274
275    // Try to render a small bitmap using the invalid deserialized filter
276    // to make sure we don't crash while trying to render it
277    if (shouldSucceed) {
278        SkBitmap bitmap;
279        bitmap.allocN32Pixels(24, 24);
280        SkCanvas canvas(bitmap);
281        canvas.clear(0x00000000);
282        SkPaint paint;
283        paint.setImageFilter(deserializedFilter);
284        canvas.clipRect(SkRect::MakeXYWH(0, 0, SkIntToScalar(24), SkIntToScalar(24)));
285        canvas.drawBitmap(bitmap, 0, 0, &paint);
286    }
287}
288
289static void TestColorFilterSerialization(skiatest::Reporter* reporter) {
290    uint8_t table[256];
291    for (int i = 0; i < 256; ++i) {
292        table[i] = (i * 41) % 256;
293    }
294    auto colorFilter(SkTableColorFilter::Make(table));
295    sk_sp<SkColorFilter> copy(
296        TestFlattenableSerialization<SkColorFilter>(colorFilter.get(), true, reporter));
297}
298
299static SkBitmap draw_picture(SkPicture& picture) {
300     SkBitmap bitmap;
301     bitmap.allocN32Pixels(SkScalarCeilToInt(picture.cullRect().width()),
302                           SkScalarCeilToInt(picture.cullRect().height()));
303     SkCanvas canvas(bitmap);
304     picture.playback(&canvas);
305     return bitmap;
306}
307
308static void compare_bitmaps(skiatest::Reporter* reporter,
309                            const SkBitmap& b1, const SkBitmap& b2) {
310    REPORTER_ASSERT(reporter, b1.width() == b2.width());
311    REPORTER_ASSERT(reporter, b1.height() == b2.height());
312
313    if ((b1.width() != b2.width()) ||
314        (b1.height() != b2.height())) {
315        return;
316    }
317
318    int pixelErrors = 0;
319    for (int y = 0; y < b2.height(); ++y) {
320        for (int x = 0; x < b2.width(); ++x) {
321            if (b1.getColor(x, y) != b2.getColor(x, y))
322                ++pixelErrors;
323        }
324    }
325    REPORTER_ASSERT(reporter, 0 == pixelErrors);
326}
327static void serialize_and_compare_typeface(sk_sp<SkTypeface> typeface, const char* text,
328                                           skiatest::Reporter* reporter)
329{
330    // Create a paint with the typeface.
331    SkPaint paint;
332    paint.setColor(SK_ColorGRAY);
333    paint.setTextSize(SkIntToScalar(30));
334    paint.setTypeface(std::move(typeface));
335
336    // Paint some text.
337    SkPictureRecorder recorder;
338    SkIRect canvasRect = SkIRect::MakeWH(kBitmapSize, kBitmapSize);
339    SkCanvas* canvas = recorder.beginRecording(SkIntToScalar(canvasRect.width()),
340                                               SkIntToScalar(canvasRect.height()),
341                                               nullptr, 0);
342    canvas->drawColor(SK_ColorWHITE);
343    canvas->drawText(text, 2, 24, 32, paint);
344    sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
345
346    // Serlialize picture and create its clone from stream.
347    SkDynamicMemoryWStream stream;
348    picture->serialize(&stream);
349    std::unique_ptr<SkStream> inputStream(stream.detachAsStream());
350    sk_sp<SkPicture> loadedPicture(SkPicture::MakeFromStream(inputStream.get()));
351
352    // Draw both original and clone picture and compare bitmaps -- they should be identical.
353    SkBitmap origBitmap = draw_picture(*picture);
354    SkBitmap destBitmap = draw_picture(*loadedPicture);
355    compare_bitmaps(reporter, origBitmap, destBitmap);
356}
357
358static void TestPictureTypefaceSerialization(skiatest::Reporter* reporter) {
359    {
360        // Load typeface from file to test CreateFromFile with index.
361        auto data = GetResourceAsData("fonts/test.ttc");
362        auto typeface = SkTypeface::MakeFromStream(new SkMemoryStream(std::move(data)), 1);
363        if (!typeface) {
364            INFOF(reporter, "Could not run fontstream test because test.ttc not found.");
365        } else {
366            serialize_and_compare_typeface(std::move(typeface), "A!", reporter);
367        }
368    }
369
370    {
371        // Load typeface as stream to create with axis settings.
372        std::unique_ptr<SkStreamAsset> distortable(GetResourceAsStream("fonts/Distortable.ttf"));
373        if (!distortable) {
374            INFOF(reporter, "Could not run fontstream test because Distortable.ttf not found.");
375        } else {
376            SkFixed axis = SK_FixedSqrt2;
377            sk_sp<SkTypeface> typeface(SkTypeface::MakeFromFontData(
378                skstd::make_unique<SkFontData>(std::move(distortable), 0, &axis, 1)));
379            if (!typeface) {
380                INFOF(reporter, "Could not run fontstream test because Distortable.ttf not created.");
381            } else {
382                serialize_and_compare_typeface(std::move(typeface), "abc", reporter);
383            }
384        }
385    }
386}
387
388static void setup_bitmap_for_canvas(SkBitmap* bitmap) {
389    bitmap->allocN32Pixels(kBitmapSize, kBitmapSize);
390}
391
392static void make_checkerboard_bitmap(SkBitmap& bitmap) {
393    setup_bitmap_for_canvas(&bitmap);
394
395    SkCanvas canvas(bitmap);
396    canvas.clear(0x00000000);
397    SkPaint darkPaint;
398    darkPaint.setColor(0xFF804020);
399    SkPaint lightPaint;
400    lightPaint.setColor(0xFF244484);
401    const int i = kBitmapSize / 8;
402    const SkScalar f = SkIntToScalar(i);
403    for (int y = 0; y < kBitmapSize; y += i) {
404        for (int x = 0; x < kBitmapSize; x += i) {
405            canvas.save();
406            canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
407            canvas.drawRect(SkRect::MakeXYWH(0, 0, f, f), darkPaint);
408            canvas.drawRect(SkRect::MakeXYWH(f, 0, f, f), lightPaint);
409            canvas.drawRect(SkRect::MakeXYWH(0, f, f, f), lightPaint);
410            canvas.drawRect(SkRect::MakeXYWH(f, f, f, f), darkPaint);
411            canvas.restore();
412        }
413    }
414}
415
416static void draw_something(SkCanvas* canvas) {
417    SkPaint paint;
418    SkBitmap bitmap;
419    make_checkerboard_bitmap(bitmap);
420
421    canvas->save();
422    canvas->scale(0.5f, 0.5f);
423    canvas->drawBitmap(bitmap, 0, 0, nullptr);
424    canvas->restore();
425
426    paint.setAntiAlias(true);
427
428    paint.setColor(SK_ColorRED);
429    canvas->drawCircle(SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/3), paint);
430    paint.setColor(SK_ColorBLACK);
431    paint.setTextSize(SkIntToScalar(kBitmapSize/3));
432    canvas->drawString("Picture", SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/4), paint);
433}
434
435DEF_TEST(Serialization, reporter) {
436    // Test matrix serialization
437    {
438        SkMatrix matrix = SkMatrix::I();
439        TestObjectSerialization(&matrix, reporter);
440    }
441
442    // Test path serialization
443    {
444        SkPath path;
445        TestObjectSerialization(&path, reporter);
446    }
447
448    // Test region serialization
449    {
450        SkRegion region;
451        TestObjectSerialization(&region, reporter);
452    }
453
454    // Test color filter serialization
455    {
456        TestColorFilterSerialization(reporter);
457    }
458
459    // Test string serialization
460    {
461        SkString string("string");
462        TestObjectSerializationNoAlign<SkString, false>(&string, reporter);
463        TestObjectSerializationNoAlign<SkString, true>(&string, reporter);
464    }
465
466    // Test rrect serialization
467    {
468        // SkRRect does not initialize anything.
469        // An uninitialized SkRRect can be serialized,
470        // but will branch on uninitialized data when deserialized.
471        SkRRect rrect;
472        SkRect rect = SkRect::MakeXYWH(1, 2, 20, 30);
473        SkVector corners[4] = { {1, 2}, {2, 3}, {3,4}, {4,5} };
474        rrect.setRectRadii(rect, corners);
475        SerializationTest::TestAlignment(&rrect, reporter);
476    }
477
478    // Test readByteArray
479    {
480        unsigned char data[kArraySize] = { 1, 2, 3 };
481        TestArraySerialization(data, reporter);
482    }
483
484    // Test readColorArray
485    {
486        SkColor data[kArraySize] = { SK_ColorBLACK, SK_ColorWHITE, SK_ColorRED };
487        TestArraySerialization(data, reporter);
488    }
489
490    // Test readColor4fArray
491    {
492        SkColor4f data[kArraySize] = {
493            SkColor4f::FromColor(SK_ColorBLACK),
494            SkColor4f::FromColor(SK_ColorWHITE),
495            SkColor4f::FromColor(SK_ColorRED),
496            { 1.f, 2.f, 4.f, 8.f }
497        };
498        TestArraySerialization(data, reporter);
499    }
500
501    // Test readIntArray
502    {
503        int32_t data[kArraySize] = { 1, 2, 4, 8 };
504        TestArraySerialization(data, reporter);
505    }
506
507    // Test readPointArray
508    {
509        SkPoint data[kArraySize] = { {6, 7}, {42, 128} };
510        TestArraySerialization(data, reporter);
511    }
512
513    // Test readScalarArray
514    {
515        SkScalar data[kArraySize] = { SK_Scalar1, SK_ScalarHalf, SK_ScalarMax };
516        TestArraySerialization(data, reporter);
517    }
518
519    // Test invalid deserializations
520    {
521        SkImageInfo info = SkImageInfo::MakeN32Premul(kBitmapSize, kBitmapSize);
522
523        SkBitmap validBitmap;
524        validBitmap.setInfo(info);
525
526        // Create a bitmap with a really large height
527        SkBitmap invalidBitmap;
528        invalidBitmap.setInfo(info.makeWH(info.width(), 1000000000));
529
530        // The deserialization should succeed, and the rendering shouldn't crash,
531        // even when the device fails to initialize, due to its size
532        TestBitmapSerialization(validBitmap, invalidBitmap, true, reporter);
533    }
534
535    // Test simple SkPicture serialization
536    {
537        SkPictureRecorder recorder;
538        draw_something(recorder.beginRecording(SkIntToScalar(kBitmapSize),
539                                               SkIntToScalar(kBitmapSize),
540                                               nullptr, 0));
541        sk_sp<SkPicture> pict(recorder.finishRecordingAsPicture());
542
543        // Serialize picture
544        SkBinaryWriteBuffer writer;
545        pict->flatten(writer);
546        size_t size = writer.bytesWritten();
547        SkAutoTMalloc<unsigned char> data(size);
548        writer.writeToMemory(static_cast<void*>(data.get()));
549
550        // Deserialize picture
551        SkReadBuffer reader(static_cast<void*>(data.get()), size);
552        sk_sp<SkPicture> readPict(SkPicture::MakeFromBuffer(reader));
553        REPORTER_ASSERT(reporter, reader.isValid());
554        REPORTER_ASSERT(reporter, readPict.get());
555    }
556
557    TestPictureTypefaceSerialization(reporter);
558}
559
560///////////////////////////////////////////////////////////////////////////////////////////////////
561#include "SkAnnotation.h"
562
563static sk_sp<SkPicture> copy_picture_via_serialization(SkPicture* src) {
564    SkDynamicMemoryWStream wstream;
565    src->serialize(&wstream);
566    std::unique_ptr<SkStreamAsset> rstream(wstream.detachAsStream());
567    return SkPicture::MakeFromStream(rstream.get());
568}
569
570struct AnnotationRec {
571    const SkRect    fRect;
572    const char*     fKey;
573    sk_sp<SkData>   fValue;
574};
575
576class TestAnnotationCanvas : public SkCanvas {
577    skiatest::Reporter*     fReporter;
578    const AnnotationRec*    fRec;
579    int                     fCount;
580    int                     fCurrIndex;
581
582public:
583    TestAnnotationCanvas(skiatest::Reporter* reporter, const AnnotationRec rec[], int count)
584        : SkCanvas(100, 100)
585        , fReporter(reporter)
586        , fRec(rec)
587        , fCount(count)
588        , fCurrIndex(0)
589    {}
590
591    ~TestAnnotationCanvas() {
592        REPORTER_ASSERT(fReporter, fCount == fCurrIndex);
593    }
594
595protected:
596    void onDrawAnnotation(const SkRect& rect, const char key[], SkData* value) {
597        REPORTER_ASSERT(fReporter, fCurrIndex < fCount);
598        REPORTER_ASSERT(fReporter, rect == fRec[fCurrIndex].fRect);
599        REPORTER_ASSERT(fReporter, !strcmp(key, fRec[fCurrIndex].fKey));
600        REPORTER_ASSERT(fReporter, value->equals(fRec[fCurrIndex].fValue.get()));
601        fCurrIndex += 1;
602    }
603};
604
605/*
606 *  Test the 3 annotation types by recording them into a picture, serializing, and then playing
607 *  them back into another canvas.
608 */
609DEF_TEST(Annotations, reporter) {
610    SkPictureRecorder recorder;
611    SkCanvas* recordingCanvas = recorder.beginRecording(SkRect::MakeWH(100, 100));
612
613    const char* str0 = "rect-with-url";
614    const SkRect r0 = SkRect::MakeWH(10, 10);
615    sk_sp<SkData> d0(SkData::MakeWithCString(str0));
616    SkAnnotateRectWithURL(recordingCanvas, r0, d0.get());
617
618    const char* str1 = "named-destination";
619    const SkRect r1 = SkRect::MakeXYWH(5, 5, 0, 0); // collapsed to a point
620    sk_sp<SkData> d1(SkData::MakeWithCString(str1));
621    SkAnnotateNamedDestination(recordingCanvas, {r1.x(), r1.y()}, d1.get());
622
623    const char* str2 = "link-to-destination";
624    const SkRect r2 = SkRect::MakeXYWH(20, 20, 5, 6);
625    sk_sp<SkData> d2(SkData::MakeWithCString(str2));
626    SkAnnotateLinkToDestination(recordingCanvas, r2, d2.get());
627
628    const AnnotationRec recs[] = {
629        { r0, SkAnnotationKeys::URL_Key(),                  std::move(d0) },
630        { r1, SkAnnotationKeys::Define_Named_Dest_Key(),    std::move(d1) },
631        { r2, SkAnnotationKeys::Link_Named_Dest_Key(),      std::move(d2) },
632    };
633
634    sk_sp<SkPicture> pict0(recorder.finishRecordingAsPicture());
635    sk_sp<SkPicture> pict1(copy_picture_via_serialization(pict0.get()));
636
637    TestAnnotationCanvas canvas(reporter, recs, SK_ARRAY_COUNT(recs));
638    canvas.drawPicture(pict1);
639}
640