C++ SkPictureRecorder类代码示例

//.........这里部分代码省略.........
        filter = (R(2) == 1)
                 ? SkLightingImageFilter::MakePointLitDiffuse(make_point(), make_color(),
                                                              make_scalar(), make_scalar(),
                                                              make_image_filter())
                 : SkLightingImageFilter::MakePointLitSpecular(make_point(), make_color(),
                                                               make_scalar(), make_scalar(),
                                                               SkIntToScalar(R(10)),
                                                               make_image_filter());
        break;
    case SPOT_LIGHT:
        filter = (R(2) == 1)
                 ? SkLightingImageFilter::MakeSpotLitDiffuse(SkPoint3::Make(0, 0, 0),
                                                             make_point(), make_scalar(),
                                                             make_scalar(), make_color(),
                                                             make_scalar(), make_scalar(),
                                                             make_image_filter())
                 : SkLightingImageFilter::MakeSpotLitSpecular(SkPoint3::Make(0, 0, 0),
                                                              make_point(), make_scalar(),
                                                              make_scalar(), make_color(),
                                                              make_scalar(), make_scalar(),
                                                              SkIntToScalar(R(10)),
                                                              make_image_filter());
        break;
    case NOISE: {
        sk_sp<SkShader> shader((R(2) == 1)
                ? SkPerlinNoiseShader::MakeFractalNoise(make_scalar(true), make_scalar(true),
                                                        R(10.0f), make_scalar())
                : SkPerlinNoiseShader::MakeTurbulence(make_scalar(true), make_scalar(true),
                                                      R(10.0f), make_scalar()));
        SkPaint paint;
        paint.setShader(shader);
        SkImageFilter::CropRect cropR(SkRect::MakeWH(SkIntToScalar(kBitmapSize),
                                                     SkIntToScalar(kBitmapSize)));
        filter = SkPaintImageFilter::Make(paint, &cropR);
        break;
    }
    case DROP_SHADOW:
        filter = SkDropShadowImageFilter::Make(make_scalar(),
                                               make_scalar(),
                                               make_scalar(true),
                                               make_scalar(true),
                                               make_color(),
                                               make_shadow_mode(),
                                               make_image_filter(),
                                               nullptr);
        break;
    case MORPHOLOGY:
        if (R(2) == 1) {
            filter = SkDilateImageFilter::Make(R(static_cast<float>(kBitmapSize)),
                                               R(static_cast<float>(kBitmapSize)),
                                               make_image_filter());
        } else {
            filter = SkErodeImageFilter::Make(R(static_cast<float>(kBitmapSize)),
                                              R(static_cast<float>(kBitmapSize)),
                                              make_image_filter());
        }
        break;
    case BITMAP: {
        sk_sp<SkImage> image(SkImage::MakeFromBitmap(make_bitmap()));
        if (R(2) == 1) {
            filter = SkImageSource::Make(std::move(image),
                                         make_rect(),
                                         make_rect(),
                                         kHigh_SkFilterQuality);
        } else {
            filter = SkImageSource::Make(std::move(image));
        }
        break;
    }
    case DISPLACE:
        filter = SkDisplacementMapEffect::Make(make_channel_selector_type(),
                                               make_channel_selector_type(),
                                               make_scalar(),
                                               make_image_filter(false),
                                               make_image_filter());
        break;
    case TILE:
        filter = SkTileImageFilter::Make(make_rect(), make_rect(), make_image_filter(false));
        break;
    case PICTURE: {
        SkRTreeFactory factory;
        SkPictureRecorder recorder;
        SkCanvas* recordingCanvas = recorder.beginRecording(SkIntToScalar(kBitmapSize),
                                                            SkIntToScalar(kBitmapSize),
                                                            &factory, 0);
        drawSomething(recordingCanvas);
        sk_sp<SkPicture> pict(recorder.finishRecordingAsPicture());
        filter = SkPictureImageFilter::Make(pict, make_rect());
        break;
    }
    case PAINT: {
        SkImageFilter::CropRect cropR(make_rect());
        filter = SkPaintImageFilter::Make(make_paint(), &cropR);
        break;
    }
    default:
        break;
    }
    return (filter || canBeNull) ? filter : make_image_filter(canBeNull);
}

static int filter_picture(const SkString& inFile, const SkString& outFile) {
    SkAutoTDelete<SkPicture> inPicture;

    SkFILEStream inStream(inFile.c_str());
    if (inStream.isValid()) {
        inPicture.reset(SkPicture::CreateFromStream(&inStream));
    }

    if (NULL == inPicture.get()) {
        SkDebugf("Could not read file %s\n", inFile.c_str());
        return -1;
    }

    int localCount[SK_ARRAY_COUNT(gOptTable)];

    memset(localCount, 0, sizeof(localCount));

    SkDebugCanvas debugCanvas(inPicture->width(), inPicture->height());
    debugCanvas.setBounds(inPicture->width(), inPicture->height());
    inPicture->draw(&debugCanvas);

    // delete the initial save and restore since replaying the commands will
    // re-add them
    if (debugCanvas.getSize() > 1) {
        debugCanvas.deleteDrawCommandAt(0);
        debugCanvas.deleteDrawCommandAt(debugCanvas.getSize()-1);
    }

    bool changed = true;
    int numBefore = debugCanvas.getSize();

    while (changed) {
        changed = false;
        for (int i = 0; i < debugCanvas.getSize(); ++i) {
            for (size_t opt = 0; opt < SK_ARRAY_COUNT(gOptTable); ++opt) {
                if ((*gOptTable[opt].fCheck)(&debugCanvas, i)) {
                    (*gOptTable[opt].fApply)(&debugCanvas, i);

                    ++gOptTable[opt].fNumTimesApplied;
                    ++localCount[opt];

                    if (debugCanvas.getSize() == i) {
                        // the optimization removed all the remaining operations
                        break;
                    }

                    opt = 0;          // try all the opts all over again
                    changed = true;
                }
            }
        }
    }

    int numAfter = debugCanvas.getSize();

    if (!outFile.isEmpty()) {
        SkPictureRecorder recorder;
        SkCanvas* canvas = recorder.beginRecording(inPicture->width(), inPicture->height(), NULL, 0);
        debugCanvas.draw(canvas);
        SkAutoTUnref<SkPicture> outPicture(recorder.endRecording());

        SkFILEWStream outStream(outFile.c_str());

        outPicture->serialize(&outStream);
    }

    bool someOptFired = false;
    for (size_t opt = 0; opt < SK_ARRAY_COUNT(gOptTable); ++opt) {
        if (0 != localCount[opt]) {
            SkDebugf("%d: %d ", opt, localCount[opt]);
            someOptFired = true;
        }
    }

    if (!someOptFired) {
        SkDebugf("No opts fired\n");
    } else {
        SkDebugf("\t before: %d after: %d delta: %d\n",
                 numBefore, numAfter, numBefore-numAfter);
    }

    return 0;
}

/**
 * Called only by render_picture().
 */
static bool render_picture_internal(const SkString& inputPath, const SkString* writePath,
                                    const SkString* mismatchPath,
                                    sk_tools::PictureRenderer& renderer,
                                    SkBitmap** out) {
    SkString inputFilename = SkOSPath::Basename(inputPath.c_str());
    SkString writePathString;
    if (writePath && writePath->size() > 0 && !FLAGS_writeEncodedImages) {
        writePathString.set(*writePath);
    }
    SkString mismatchPathString;
    if (mismatchPath && mismatchPath->size() > 0) {
        mismatchPathString.set(*mismatchPath);
    }

    SkFILEStream inputStream;
    inputStream.setPath(inputPath.c_str());
    if (!inputStream.isValid()) {
        SkDebugf("Could not open file %s\n", inputPath.c_str());
        return false;
    }

    SkPicture::InstallPixelRefProc proc;
    if (FLAGS_deferImageDecoding) {
        proc = &sk_tools::LazyDecodeBitmap;
    } else if (FLAGS_writeEncodedImages) {
        SkASSERT(!FLAGS_writePath.isEmpty());
        reset_image_file_base_name(inputFilename);
        proc = &write_image_to_file;
    } else {
        proc = &SkImageDecoder::DecodeMemory;
    }

    SkDebugf("deserializing... %s\n", inputPath.c_str());

    SkAutoTUnref<SkPicture> picture(SkPicture::CreateFromStream(&inputStream, proc));

    if (nullptr == picture) {
        SkDebugf("Could not read an SkPicture from %s\n", inputPath.c_str());
        return false;
    }

    while (FLAGS_bench_record) {
        SkPictureRecorder recorder;
        picture->playback(recorder.beginRecording(picture->cullRect().width(), 
                                                  picture->cullRect().height(), 
                                                  nullptr, 0));
        SkAutoTUnref<SkPicture> other(recorder.endRecording());
    }

    SkDebugf("drawing... [%f %f %f %f] %s\n", 
             picture->cullRect().fLeft, picture->cullRect().fTop,
             picture->cullRect().fRight, picture->cullRect().fBottom,
             inputPath.c_str());

    renderer.init(picture, &writePathString, &mismatchPathString, &inputFilename,
                  FLAGS_writeChecksumBasedFilenames, FLAGS_mpd);

    renderer.setup();
    renderer.enableWrites();

    bool success = renderer.render(out);
    if (!success) {
        SkDebugf("Failed to render %s\n", inputFilename.c_str());
    }

    renderer.end();

    return success;
}

DEF_TEST(RecordOpts_MergeSvgOpacityAndFilterLayers, r) {
    SkRecord record;
    SkRecorder recorder(&record, W, H);

    SkRect bounds = SkRect::MakeWH(SkIntToScalar(100), SkIntToScalar(200));
    SkRect clip = SkRect::MakeWH(SkIntToScalar(50), SkIntToScalar(60));

    SkPaint alphaOnlyLayerPaint;
    alphaOnlyLayerPaint.setColor(0x03000000);  // Only alpha.
    SkPaint translucentLayerPaint;
    translucentLayerPaint.setColor(0x03040506);  // Not only alpha.
    SkPaint xfermodePaint;
    xfermodePaint.setXfermodeMode(SkXfermode::kDstIn_Mode);
    SkPaint colorFilterPaint;
    colorFilterPaint.setColorFilter(
        SkColorFilter::CreateModeFilter(SK_ColorLTGRAY, SkXfermode::kSrcIn_Mode))->unref();

    SkPaint opaqueFilterLayerPaint;
    opaqueFilterLayerPaint.setColor(0xFF020202);  // Opaque.
    SkPaint translucentFilterLayerPaint;
    translucentFilterLayerPaint.setColor(0x0F020202);  // Not opaque.
    SkAutoTUnref<SkPicture> shape;
    {
        SkPictureRecorder recorder;
        SkCanvas* canvas = recorder.beginRecording(SkIntToScalar(100), SkIntToScalar(100));
        SkPaint shapePaint;
        shapePaint.setColor(SK_ColorWHITE);
        canvas->drawRect(SkRect::MakeWH(SkIntToScalar(50), SkIntToScalar(50)), shapePaint);
        shape.reset(recorder.endRecordingAsPicture());
    }
    translucentFilterLayerPaint.setImageFilter(SkPictureImageFilter::Create(shape))->unref();

    int index = 0;

    {
        // Any combination of these should cause the pattern to be optimized.
        SkRect* firstBounds[] = { NULL, &bounds };
        SkPaint* firstPaints[] = { NULL, &alphaOnlyLayerPaint };
        SkRect* secondBounds[] = { NULL, &bounds };
        SkPaint* secondPaints[] = { &opaqueFilterLayerPaint, &translucentFilterLayerPaint };

        for (size_t i = 0; i < SK_ARRAY_COUNT(firstBounds); ++ i) {
            for (size_t j = 0; j < SK_ARRAY_COUNT(firstPaints); ++j) {
                for (size_t k = 0; k < SK_ARRAY_COUNT(secondBounds); ++k) {
                    for (size_t m = 0; m < SK_ARRAY_COUNT(secondPaints); ++m) {
                        recorder.saveLayer(firstBounds[i], firstPaints[j]);
                        recorder.save();
                        recorder.clipRect(clip);
                        recorder.saveLayer(secondBounds[k], secondPaints[m]);
                        recorder.restore();
                        recorder.restore();
                        recorder.restore();
                        assert_merge_svg_opacity_and_filter_layers(r, &record, index, true);
                        index += 7;
                    }
                }
            }
        }
    }

    // These should cause the pattern to stay unoptimized:
    struct {
        SkPaint* firstPaint;
        SkPaint* secondPaint;
    } noChangeTests[] = {
        // No change: NULL filter layer paint not implemented.
        { &alphaOnlyLayerPaint, NULL },
        // No change: layer paint is not alpha-only.
        { &translucentLayerPaint, &opaqueFilterLayerPaint },
        // No change: layer paint has an xfereffect.
        { &xfermodePaint, &opaqueFilterLayerPaint },
        // No change: filter layer paint has an xfereffect.
        { &alphaOnlyLayerPaint, &xfermodePaint },
        // No change: layer paint has a color filter.
        { &colorFilterPaint, &opaqueFilterLayerPaint },
        // No change: filter layer paint has a color filter (until the optimization accounts for
        // constant color draws that can filter the color).
        { &alphaOnlyLayerPaint, &colorFilterPaint }
    };

    for (size_t i = 0; i < SK_ARRAY_COUNT(noChangeTests); ++i) {
        recorder.saveLayer(NULL, noChangeTests[i].firstPaint);
        recorder.save();
        recorder.clipRect(clip);
        recorder.saveLayer(NULL, noChangeTests[i].secondPaint);
        recorder.restore();
        recorder.restore();
        recorder.restore();
        assert_merge_svg_opacity_and_filter_layers(r, &record, index, false);
        index += 7;
    }

    // Test the folded alpha value.
    recorder.saveLayer(NULL, &alphaOnlyLayerPaint);
    recorder.save();
    recorder.clipRect(clip);
    recorder.saveLayer(NULL, &opaqueFilterLayerPaint);
    recorder.restore();
    recorder.restore();
    recorder.restore();
//.........这里部分代码省略.........

DEF_TEST(Serialization, reporter) {
    // Test matrix serialization
    {
        SkMatrix matrix = SkMatrix::I();
        TestObjectSerialization(&matrix, reporter);
    }

    // Test path serialization
    {
        SkPath path;
        TestObjectSerialization(&path, reporter);
    }

    // Test region serialization
    {
        SkRegion region;
        TestObjectSerialization(&region, reporter);
    }

    // Test xfermode serialization
    {
        TestXfermodeSerialization(reporter);
    }

    // Test color filter serialization
    {
        TestColorFilterSerialization(reporter);
    }

    // Test string serialization
    {
        SkString string("string");
        TestObjectSerializationNoAlign<SkString, false>(&string, reporter);
        TestObjectSerializationNoAlign<SkString, true>(&string, reporter);
    }

    // Test rrect serialization
    {
        // SkRRect does not initialize anything.
        // An uninitialized SkRRect can be serialized,
        // but will branch on uninitialized data when deserialized.
        SkRRect rrect;
        SkRect rect = SkRect::MakeXYWH(1, 2, 20, 30);
        SkVector corners[4] = { {1, 2}, {2, 3}, {3,4}, {4,5} };
        rrect.setRectRadii(rect, corners);
        TestAlignment(&rrect, reporter);
    }

    // Test readByteArray
    {
        unsigned char data[kArraySize] = { 1, 2, 3 };
        TestArraySerialization(data, reporter);
    }

    // Test readColorArray
    {
        SkColor data[kArraySize] = { SK_ColorBLACK, SK_ColorWHITE, SK_ColorRED };
        TestArraySerialization(data, reporter);
    }

    // Test readIntArray
    {
        int32_t data[kArraySize] = { 1, 2, 4, 8 };
        TestArraySerialization(data, reporter);
    }

    // Test readPointArray
    {
        SkPoint data[kArraySize] = { {6, 7}, {42, 128} };
        TestArraySerialization(data, reporter);
    }

    // Test readScalarArray
    {
        SkScalar data[kArraySize] = { SK_Scalar1, SK_ScalarHalf, SK_ScalarMax };
        TestArraySerialization(data, reporter);
    }

    // Test invalid deserializations
    {
        SkImageInfo info = SkImageInfo::MakeN32Premul(kBitmapSize, kBitmapSize);

        SkBitmap validBitmap;
        validBitmap.setInfo(info);

        // Create a bitmap with a really large height
        SkBitmap invalidBitmap;
        invalidBitmap.setInfo(info.makeWH(info.width(), 1000000000));

        // The deserialization should succeed, and the rendering shouldn't crash,
        // even when the device fails to initialize, due to its size
        TestBitmapSerialization(validBitmap, invalidBitmap, true, reporter);
    }

    // Test simple SkPicture serialization
    {
        SkPictureRecorder recorder;
        draw_something(recorder.beginRecording(SkIntToScalar(kBitmapSize),
                                               SkIntToScalar(kBitmapSize),
                                               nullptr, 0));
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        int shininess;
        fuzz->nextRange(&shininess, 0, 9);
        sk_sp<SkImageFilter> fil = make_image_filter();
        filter = make_bool()
                 ? SkLightingImageFilter::MakeSpotLitDiffuse(SkPoint3::Make(0, 0, 0),
                                                             p, se, ca, c, ss, kd, fil)
                 : SkLightingImageFilter::MakeSpotLitSpecular(SkPoint3::Make(0, 0, 0),
                                                              p, se, ca, c, ss, kd,
                                                              shininess, fil);
        break;
    }
    case NOISE: {
        SkScalar bfx = make_number(true);
        SkScalar bfy = make_number(true);
        SkScalar seed = make_number(false);
        int octaves;
        fuzz->nextRange(&octaves, 0, 9);
        sk_sp<SkShader> shader(make_bool()
                ? SkPerlinNoiseShader::MakeFractalNoise(bfx, bfy, octaves, seed)
                : SkPerlinNoiseShader::MakeTurbulence(bfx, bfy, octaves, seed));
        SkPaint paint;
        paint.setShader(shader);
        SkImageFilter::CropRect cropR(SkRect::MakeWH(SkIntToScalar(kBitmapSize),
                                                     SkIntToScalar(kBitmapSize)));
        filter = SkPaintImageFilter::Make(paint, &cropR);
        break;
    }
    case DROP_SHADOW: {
        SkScalar dx, dy, sx, sy;
        fuzz->next(&dx, &dy);
        sx = make_number(true);
        sy = make_number(true);
        SkColor c = make_color();
        SkDropShadowImageFilter::ShadowMode mode = make_shadow_mode();
        sk_sp<SkImageFilter> fil = make_image_filter();
        filter = SkDropShadowImageFilter::Make(dx, dy, sx, sy, c, mode, fil, nullptr);
        break;
    }
    case MORPHOLOGY: {
        int rx, ry;
        fuzz->nextRange(&rx, 0, kBitmapSize);
        fuzz->nextRange(&ry, 0, kBitmapSize);
        sk_sp<SkImageFilter> fil = make_image_filter();
        if (make_bool()) {
            filter = SkDilateImageFilter::Make(rx, ry, fil);
        } else {
            filter = SkErodeImageFilter::Make(rx, ry, fil);
        }
        break;
    }
    case BITMAP: {
        sk_sp<SkImage> image(SkImage::MakeFromBitmap(make_bitmap()));
        if (make_bool()) {
            filter = SkImageSource::Make(std::move(image),
                                         make_rect(),
                                         make_rect(),
                                         kHigh_SkFilterQuality);
        } else {
            filter = SkImageSource::Make(std::move(image));
        }
        break;
    }
    case DISPLACE: {
        SkDisplacementMapEffect::ChannelSelectorType x = make_channel_selector_type();
        SkDisplacementMapEffect::ChannelSelectorType y = make_channel_selector_type();
        SkScalar scale = make_number(false);
        sk_sp<SkImageFilter> filA = make_image_filter(false);
        sk_sp<SkImageFilter> filB = make_image_filter();

        filter = SkDisplacementMapEffect::Make(x, y, scale, filA, filB);
        break;
    }
    case TILE: {
        SkRect src = make_rect();
        SkRect dest = make_rect();
        sk_sp<SkImageFilter> fil = make_image_filter(false);
        filter = SkTileImageFilter::Make(src, dest, fil);
        break;
    }
    case PICTURE: {
        SkRTreeFactory factory;
        SkPictureRecorder recorder;
        SkCanvas* recordingCanvas = recorder.beginRecording(SkIntToScalar(kBitmapSize),
                                                            SkIntToScalar(kBitmapSize),
                                                            &factory, 0);
        drawSomething(recordingCanvas);
        sk_sp<SkPicture> pict(recorder.finishRecordingAsPicture());
        filter = SkPictureImageFilter::Make(pict, make_rect());
        break;
    }
    case PAINT: {
        SkImageFilter::CropRect cropR(make_rect());
        filter = SkPaintImageFilter::Make(make_paint(), &cropR);
        break;
    }
    default:
        break;
    }
    return filter;
}

static void test_clip_bound_opt(skiatest::Reporter* reporter) {
    // Test for crbug.com/229011
    SkRect rect1 = SkRect::MakeXYWH(SkIntToScalar(4), SkIntToScalar(4),
                                    SkIntToScalar(2), SkIntToScalar(2));
    SkRect rect2 = SkRect::MakeXYWH(SkIntToScalar(7), SkIntToScalar(7),
                                    SkIntToScalar(1), SkIntToScalar(1));
    SkRect rect3 = SkRect::MakeXYWH(SkIntToScalar(6), SkIntToScalar(6),
                                    SkIntToScalar(1), SkIntToScalar(1));

    SkPath invPath;
    invPath.addOval(rect1);
    invPath.setFillType(SkPath::kInverseEvenOdd_FillType);
    SkPath path;
    path.addOval(rect2);
    SkPath path2;
    path2.addOval(rect3);
    SkIRect clipBounds;
    SkPictureRecorder recorder;

    // Testing conservative-raster-clip that is enabled by PictureRecord
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->clipPath(invPath, SkRegion::kIntersect_Op);
        bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
        REPORTER_ASSERT(reporter, true == nonEmpty);
        REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft);
        REPORTER_ASSERT(reporter, 0 == clipBounds.fTop);
        REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom);
        REPORTER_ASSERT(reporter, 10 == clipBounds.fRight);
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->clipPath(path, SkRegion::kIntersect_Op);
        canvas->clipPath(invPath, SkRegion::kIntersect_Op);
        bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
        REPORTER_ASSERT(reporter, true == nonEmpty);
        REPORTER_ASSERT(reporter, 7 == clipBounds.fLeft);
        REPORTER_ASSERT(reporter, 7 == clipBounds.fTop);
        REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom);
        REPORTER_ASSERT(reporter, 8 == clipBounds.fRight);
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->clipPath(path, SkRegion::kIntersect_Op);
        canvas->clipPath(invPath, SkRegion::kUnion_Op);
        bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
        REPORTER_ASSERT(reporter, true == nonEmpty);
        REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft);
        REPORTER_ASSERT(reporter, 0 == clipBounds.fTop);
        REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom);
        REPORTER_ASSERT(reporter, 10 == clipBounds.fRight);
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->clipPath(path, SkRegion::kDifference_Op);
        bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
        REPORTER_ASSERT(reporter, true == nonEmpty);
        REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft);
        REPORTER_ASSERT(reporter, 0 == clipBounds.fTop);
        REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom);
        REPORTER_ASSERT(reporter, 10 == clipBounds.fRight);
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->clipPath(path, SkRegion::kReverseDifference_Op);
        bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
        // True clip is actually empty in this case, but the best
        // determination we can make using only bounds as input is that the
        // clip is included in the bounds of 'path'.
        REPORTER_ASSERT(reporter, true == nonEmpty);
        REPORTER_ASSERT(reporter, 7 == clipBounds.fLeft);
        REPORTER_ASSERT(reporter, 7 == clipBounds.fTop);
        REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom);
        REPORTER_ASSERT(reporter, 8 == clipBounds.fRight);
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->clipPath(path, SkRegion::kIntersect_Op);
        canvas->clipPath(path2, SkRegion::kXOR_Op);
        bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
        REPORTER_ASSERT(reporter, true == nonEmpty);
        REPORTER_ASSERT(reporter, 6 == clipBounds.fLeft);
        REPORTER_ASSERT(reporter, 6 == clipBounds.fTop);
        REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom);
        REPORTER_ASSERT(reporter, 8 == clipBounds.fRight);
    }
}

static void test_hierarchical(skiatest::Reporter* reporter) {
    SkBitmap bm;
    make_bm(&bm, 10, 10, SK_ColorRED, true);

    SkPictureRecorder recorder;

    recorder.beginRecording(10, 10);
    SkAutoTUnref<SkPicture> childPlain(recorder.endRecording());
    REPORTER_ASSERT(reporter, !childPlain->willPlayBackBitmaps()); // 0

    recorder.beginRecording(10, 10)->drawBitmap(bm, 0, 0);
    SkAutoTUnref<SkPicture> childWithBitmap(recorder.endRecording());
    REPORTER_ASSERT(reporter, childWithBitmap->willPlayBackBitmaps()); // 1

    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->drawPicture(childPlain);
        SkAutoTUnref<SkPicture> parentPP(recorder.endRecording());
        REPORTER_ASSERT(reporter, !parentPP->willPlayBackBitmaps()); // 0
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->drawPicture(childWithBitmap);
        SkAutoTUnref<SkPicture> parentPWB(recorder.endRecording());
        REPORTER_ASSERT(reporter, parentPWB->willPlayBackBitmaps()); // 1
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->drawBitmap(bm, 0, 0);
        canvas->drawPicture(childPlain);
        SkAutoTUnref<SkPicture> parentWBP(recorder.endRecording());
        REPORTER_ASSERT(reporter, parentWBP->willPlayBackBitmaps()); // 1
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->drawBitmap(bm, 0, 0);
        canvas->drawPicture(childWithBitmap);
        SkAutoTUnref<SkPicture> parentWBWB(recorder.endRecording());
        REPORTER_ASSERT(reporter, parentWBWB->willPlayBackBitmaps()); // 2
    }
}

static void test_has_text(skiatest::Reporter* reporter) {
    SkPictureRecorder recorder;

    SkCanvas* canvas = recorder.beginRecording(100,100);
    {
        canvas->drawRect(SkRect::MakeWH(20, 20), SkPaint());
    }
    SkAutoTUnref<SkPicture> picture(recorder.endRecording());
    REPORTER_ASSERT(reporter, !picture->hasText());

    SkPoint point = SkPoint::Make(10, 10);
    canvas = recorder.beginRecording(100,100);
    {
        canvas->drawText("Q", 1, point.fX, point.fY, SkPaint());
    }
    picture.reset(recorder.endRecording());
    REPORTER_ASSERT(reporter, picture->hasText());

    canvas = recorder.beginRecording(100,100);
    {
        canvas->drawPosText("Q", 1, &point, SkPaint());
    }
    picture.reset(recorder.endRecording());
    REPORTER_ASSERT(reporter, picture->hasText());

    canvas = recorder.beginRecording(100,100);
    {
        canvas->drawPosTextH("Q", 1, &point.fX, point.fY, SkPaint());
    }
    picture.reset(recorder.endRecording());
    REPORTER_ASSERT(reporter, picture->hasText());

    canvas = recorder.beginRecording(100,100);
    {
        SkPath path;
        path.moveTo(0, 0);
        path.lineTo(50, 50);

        canvas->drawTextOnPathHV("Q", 1, path, point.fX, point.fY, SkPaint());
    }
    picture.reset(recorder.endRecording());
    REPORTER_ASSERT(reporter, picture->hasText());

    canvas = recorder.beginRecording(100,100);
    {
        SkPath path;
        path.moveTo(0, 0);
        path.lineTo(50, 50);

        canvas->drawTextOnPath("Q", 1, path, NULL, SkPaint());
    }
    picture.reset(recorder.endRecording());
    REPORTER_ASSERT(reporter, picture->hasText());

    // Nest the previous picture inside a new one.
    canvas = recorder.beginRecording(100,100);
    {
        canvas->drawPicture(picture.get());
    }
    picture.reset(recorder.endRecording());
    REPORTER_ASSERT(reporter, picture->hasText());
}

// Test out SkPictureRecorder::partialReplay
DEF_TEST(PictureRecorder_replay, reporter) {
    // check save/saveLayer state
    {
        SkPictureRecorder recorder;

        SkCanvas* canvas = recorder.beginRecording(10, 10);

        canvas->saveLayer(NULL, NULL);

        SkAutoTUnref<SkPicture> copy(SkPictureRecorderReplayTester::Copy(&recorder));

        // The extra save and restore comes from the Copy process.
        check_save_state(reporter, copy, 2, 1, 3);

        canvas->saveLayer(NULL, NULL);

        SkAutoTUnref<SkPicture> final(recorder.endRecording());

        check_save_state(reporter, final, 1, 2, 3);

        // The copy shouldn't pick up any operations added after it was made
        check_save_state(reporter, copy, 2, 1, 3);
    }

    // (partially) check leakage of draw ops
    {
        SkPictureRecorder recorder;

        SkCanvas* canvas = recorder.beginRecording(10, 10);

        SkRect r = SkRect::MakeWH(5, 5);
        SkPaint p;

        canvas->drawRect(r, p);

        SkAutoTUnref<SkPicture> copy(SkPictureRecorderReplayTester::Copy(&recorder));

        REPORTER_ASSERT(reporter, !copy->willPlayBackBitmaps());

        SkBitmap bm;
        make_bm(&bm, 10, 10, SK_ColorRED, true);

        r.offset(5.0f, 5.0f);
        canvas->drawBitmapRectToRect(bm, NULL, r);

        SkAutoTUnref<SkPicture> final(recorder.endRecording());
        REPORTER_ASSERT(reporter, final->willPlayBackBitmaps());

        REPORTER_ASSERT(reporter, copy->uniqueID() != final->uniqueID());

        // The snapshot shouldn't pick up any operations added after it was made
        REPORTER_ASSERT(reporter, !copy->willPlayBackBitmaps());
    }

    // Recreate the Android partialReplay test case
    {
        SkPictureRecorder recorder;

        SkCanvas* canvas = recorder.beginRecording(4, 3, NULL, 0);
        create_imbalance(canvas);

        int expectedSaveCount = canvas->getSaveCount();

        SkAutoTUnref<SkPicture> copy(SkPictureRecorderReplayTester::Copy(&recorder));
        check_balance(reporter, copy);

        REPORTER_ASSERT(reporter, expectedSaveCount = canvas->getSaveCount());

        // End the recording of source to test the picture finalization
        // process isn't complicated by the partialReplay step
        SkAutoTUnref<SkPicture> final(recorder.endRecording());
    }
}

static void test_savelayer_extraction(skiatest::Reporter* reporter) {
    static const int kWidth = 100;
    static const int kHeight = 100;

    // Create complex paint that the bounding box computation code can't
    // optimize away
    SkScalar blueToRedMatrix[20] = { 0 };
    blueToRedMatrix[2] = blueToRedMatrix[18] = SK_Scalar1;
    SkAutoTUnref<SkColorFilter> blueToRed(SkColorMatrixFilter::Create(blueToRedMatrix));
    SkAutoTUnref<SkImageFilter> filter(SkColorFilterImageFilter::Create(blueToRed.get()));

    SkPaint complexPaint;
    complexPaint.setImageFilter(filter);

    SkAutoTUnref<SkPicture> pict, child;
    SkRTreeFactory bbhFactory;

    {
        SkPictureRecorder recorder;

        SkCanvas* c = recorder.beginRecording(SkIntToScalar(kWidth), SkIntToScalar(kHeight),
                                              &bbhFactory,
                                              SkPictureRecorder::kComputeSaveLayerInfo_RecordFlag);

        c->saveLayer(NULL, &complexPaint);
        c->restore();

        child.reset(recorder.endRecording());
    }

    // create a picture with the structure:
    // 1)
    //      SaveLayer
    //      Restore
    // 2)
    //      SaveLayer
    //          Translate
    //          SaveLayer w/ bound
    //          Restore
    //      Restore
    // 3)
    //      SaveLayer w/ copyable paint
    //      Restore
    // 4)
    //      SaveLayer
    //          DrawPicture (which has a SaveLayer/Restore pair)
    //      Restore
    // 5)
    //      SaveLayer
    //          DrawPicture with Matrix & Paint (with SaveLayer/Restore pair)
    //      Restore
    {
        SkPictureRecorder recorder;

        SkCanvas* c = recorder.beginRecording(SkIntToScalar(kWidth),
                                              SkIntToScalar(kHeight),
                                              &bbhFactory,
                                              SkPictureRecorder::kComputeSaveLayerInfo_RecordFlag);
        // 1)
        c->saveLayer(NULL, &complexPaint); // layer #0
        c->restore();

        // 2)
        c->saveLayer(NULL, NULL); // layer #1
            c->translate(kWidth / 2.0f, kHeight / 2.0f);
            SkRect r = SkRect::MakeXYWH(0, 0, kWidth/2, kHeight/2);
            c->saveLayer(&r, &complexPaint); // layer #2
            c->restore();
        c->restore();

        // 3)
        {
            c->saveLayer(NULL, &complexPaint); // layer #3
            c->restore();
        }

        SkPaint layerPaint;
        layerPaint.setColor(SK_ColorRED);  // Non-alpha only to avoid SaveLayerDrawRestoreNooper
        // 4)
        {
            c->saveLayer(NULL, &layerPaint);  // layer #4
                c->drawPicture(child);  // layer #5 inside picture
            c->restore();
        }
        // 5
        {
            SkPaint picturePaint;
            SkMatrix trans;
            trans.setTranslate(10, 10);

            c->saveLayer(NULL, &layerPaint);  // layer #6
                c->drawPicture(child, &trans, &picturePaint); // layer #7 inside picture
            c->restore();
        }

        pict.reset(recorder.endRecording());
    }

    // Now test out the SaveLayer extraction
    if (!SkCanvas::Internal_Private_GetIgnoreSaveLayerBounds()) {
//.........这里部分代码省略.........

static void test_gpu_veto(skiatest::Reporter* reporter) {
    SkPictureRecorder recorder;

    SkCanvas* canvas = recorder.beginRecording(100, 100);
    {
        SkPath path;
        path.moveTo(0, 0);
        path.lineTo(50, 50);

        SkScalar intervals[] = { 1.0f, 1.0f };
        SkAutoTUnref<SkDashPathEffect> dash(SkDashPathEffect::Create(intervals, 2, 0));

        SkPaint paint;
        paint.setStyle(SkPaint::kStroke_Style);
        paint.setPathEffect(dash);

        for (int i = 0; i < 50; ++i) {
            canvas->drawPath(path, paint);
        }
    }
    SkAutoTUnref<SkPicture> picture(recorder.endRecording());
    // path effects currently render an SkPicture undesireable for GPU rendering

    const char *reason = NULL;
    REPORTER_ASSERT(reporter, !picture->suitableForGpuRasterization(NULL, &reason));
    REPORTER_ASSERT(reporter, reason);

    canvas = recorder.beginRecording(100, 100);
    {
        SkPath path;

        path.moveTo(0, 0);
        path.lineTo(0, 50);
        path.lineTo(25, 25);
        path.lineTo(50, 50);
        path.lineTo(50, 0);
        path.close();
        REPORTER_ASSERT(reporter, !path.isConvex());

        SkPaint paint;
        paint.setAntiAlias(true);
        for (int i = 0; i < 50; ++i) {
            canvas->drawPath(path, paint);
        }
    }
    picture.reset(recorder.endRecording());
    // A lot of small AA concave paths should be fine for GPU rendering
    REPORTER_ASSERT(reporter, picture->suitableForGpuRasterization(NULL));

    canvas = recorder.beginRecording(100, 100);
    {
        SkPath path;

        path.moveTo(0, 0);
        path.lineTo(0, 100);
        path.lineTo(50, 50);
        path.lineTo(100, 100);
        path.lineTo(100, 0);
        path.close();
        REPORTER_ASSERT(reporter, !path.isConvex());

        SkPaint paint;
        paint.setAntiAlias(true);
        for (int i = 0; i < 50; ++i) {
            canvas->drawPath(path, paint);
        }
    }
    picture.reset(recorder.endRecording());
    // A lot of large AA concave paths currently render an SkPicture undesireable for GPU rendering
    REPORTER_ASSERT(reporter, !picture->suitableForGpuRasterization(NULL));

    canvas = recorder.beginRecording(100, 100);
    {
        SkPath path;

        path.moveTo(0, 0);
        path.lineTo(0, 50);
        path.lineTo(25, 25);
        path.lineTo(50, 50);
        path.lineTo(50, 0);
        path.close();
        REPORTER_ASSERT(reporter, !path.isConvex());

        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setStyle(SkPaint::kStroke_Style);
        paint.setStrokeWidth(0);
        for (int i = 0; i < 50; ++i) {
            canvas->drawPath(path, paint);
        }
    }
    picture.reset(recorder.endRecording());
    // hairline stroked AA concave paths are fine for GPU rendering
    REPORTER_ASSERT(reporter, picture->suitableForGpuRasterization(NULL));

    canvas = recorder.beginRecording(100, 100);
    {
        SkPaint paint;
        SkScalar intervals [] = { 10, 20 };
        SkPathEffect* pe = SkDashPathEffect::Create(intervals, 2, 25);
//.........这里部分代码省略.........

    void onDraw(SkCanvas* canvas) override{

        SkPaint blackFill;

        //-----------
        // Normal paints (no source)
        SkTArray<SkPaint> paints;
        create_paints(nullptr, &paints);

        //-----------
        // Paints with a PictureImageFilter as a source
        SkAutoTUnref<SkPicture> pic;

        {
            SkPictureRecorder rec;

            SkCanvas* c = rec.beginRecording(10, 10);
            c->drawRect(SkRect::MakeWH(10, 10), blackFill);
            pic.reset(rec.endRecording());
        }

        SkAutoTUnref<SkPictureImageFilter> pif(SkPictureImageFilter::Create(pic));

        SkTArray<SkPaint> pifPaints;
        create_paints(pif, &pifPaints);

        //-----------
        // Paints with a SkImageSource as a source

        SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(10, 10));
        {
            SkPaint p;
            SkCanvas* temp = surface->getCanvas();
            temp->clear(SK_ColorYELLOW);
            p.setColor(SK_ColorBLUE);
            temp->drawRect(SkRect::MakeLTRB(5, 5, 10, 10), p);
            p.setColor(SK_ColorGREEN);
            temp->drawRect(SkRect::MakeLTRB(5, 0, 10, 5), p);
        }

        SkAutoTUnref<SkImage> image(surface->newImageSnapshot());
        SkAutoTUnref<SkImageFilter> imageSource(SkImageSource::Create(image));

        SkTArray<SkPaint> bmsPaints;
        create_paints(imageSource, &bmsPaints);

        //-----------
        SkASSERT(paints.count() == kNumVertTiles);
        SkASSERT(paints.count() == pifPaints.count());
        SkASSERT(paints.count() == bmsPaints.count());

        // horizontal separators
        for (int i = 1; i < paints.count(); ++i) {
            canvas->drawLine(0,
                             i*SkIntToScalar(kTileHeight),
                             SkIntToScalar((SK_ARRAY_COUNT(gDrawMthds) + kNumXtraCols)*kTileWidth),
                             i*SkIntToScalar(kTileHeight),
                             blackFill);
        }
        // vertical separators
        for (int i = 0; i < (int)SK_ARRAY_COUNT(gDrawMthds) + kNumXtraCols; ++i) {
            canvas->drawLine(SkIntToScalar(i * kTileWidth),
                             0,
                             SkIntToScalar(i * kTileWidth), 
                             SkIntToScalar(paints.count() * kTileWidth),
                             blackFill);
        }

        // A column of saveLayers with PictureImageFilters
        for (int i = 0; i < pifPaints.count(); ++i) {
            draw_savelayer_with_paint(SkIPoint::Make(0, i*kTileHeight), 
                                      canvas, pifPaints[i]);
        }

        // A column of saveLayers with BitmapSources
        for (int i = 0; i < pifPaints.count(); ++i) {
            draw_savelayer_with_paint(SkIPoint::Make(kTileWidth, i*kTileHeight),
                                      canvas, bmsPaints[i]);
        }

        // Multiple columns with different geometry
        for (int i = 0; i < (int)SK_ARRAY_COUNT(gDrawMthds); ++i) {
            for (int j = 0; j < paints.count(); ++j) {
                draw_geom_with_paint(*gDrawMthds[i],
                                     SkIPoint::Make((i+kNumXtraCols) * kTileWidth, j*kTileHeight),
                                     canvas, paints[j]);
            }
        }

    }

//.........这里部分代码省略.........
        }
        SkIPoint kernelOffset = SkIPoint::Make(R(SkIntToScalar(size.width())),
                                               R(SkIntToScalar(size.height())));
        filter = SkMatrixConvolutionImageFilter::Create(size,
                                                        kernel.begin(),
                                                        make_scalar(),
                                                        make_scalar(),
                                                        kernelOffset,
                                                        (SkMatrixConvolutionImageFilter::TileMode)R(3),
                                                        R(2) == 1,
                                                        make_image_filter(),
                                                        &cropR);
    }
        break;
    case COMPOSE:
        filter = SkComposeImageFilter::Create(make_image_filter(), make_image_filter());
        break;
    case DISTANT_LIGHT:
        filter = (R(2) == 1) ?
                 SkLightingImageFilter::CreateDistantLitDiffuse(make_point(),
                 make_color(), make_scalar(), make_scalar(), make_image_filter()) :
                 SkLightingImageFilter::CreateDistantLitSpecular(make_point(),
                 make_color(), make_scalar(), make_scalar(), SkIntToScalar(R(10)),
                 make_image_filter());
        break;
    case POINT_LIGHT:
        filter = (R(2) == 1) ?
                 SkLightingImageFilter::CreatePointLitDiffuse(make_point(),
                 make_color(), make_scalar(), make_scalar(), make_image_filter()) :
                 SkLightingImageFilter::CreatePointLitSpecular(make_point(),
                 make_color(), make_scalar(), make_scalar(), SkIntToScalar(R(10)),
                 make_image_filter());
        break;
    case SPOT_LIGHT:
        filter = (R(2) == 1) ?
                 SkLightingImageFilter::CreateSpotLitDiffuse(SkPoint3(0, 0, 0),
                 make_point(), make_scalar(), make_scalar(), make_color(),
                 make_scalar(), make_scalar(), make_image_filter()) :
                 SkLightingImageFilter::CreateSpotLitSpecular(SkPoint3(0, 0, 0),
                 make_point(), make_scalar(), make_scalar(), make_color(),
                 make_scalar(), make_scalar(), SkIntToScalar(R(10)), make_image_filter());
        break;
    case NOISE:
    {
        SkAutoTUnref<SkShader> shader((R(2) == 1) ?
            SkPerlinNoiseShader::CreateFractalNoise(
                make_scalar(true), make_scalar(true), R(10.0f), make_scalar()) :
            SkPerlinNoiseShader::CreateTurbulence(
                make_scalar(true), make_scalar(true), R(10.0f), make_scalar()));
        SkImageFilter::CropRect cropR(SkRect::MakeWH(SkIntToScalar(kBitmapSize),
                                                     SkIntToScalar(kBitmapSize)));
        filter = SkRectShaderImageFilter::Create(shader, &cropR);
    }
        break;
    case DROP_SHADOW:
        filter = SkDropShadowImageFilter::Create(make_scalar(), make_scalar(), make_scalar(true),
                    make_scalar(true), make_color(), make_shadow_mode(), make_image_filter(),
                    NULL);
        break;
    case MORPHOLOGY:
        if (R(2) == 1) {
            filter = SkDilateImageFilter::Create(R(static_cast<float>(kBitmapSize)),
                R(static_cast<float>(kBitmapSize)), make_image_filter());
        } else {
            filter = SkErodeImageFilter::Create(R(static_cast<float>(kBitmapSize)),
                R(static_cast<float>(kBitmapSize)), make_image_filter());
        }
        break;
    case BITMAP:
        if (R(2) == 1) {
            filter = SkBitmapSource::Create(make_bitmap(), make_rect(), make_rect());
        } else {
            filter = SkBitmapSource::Create(make_bitmap());
        }
        break;
    case DISPLACE:
        filter = SkDisplacementMapEffect::Create(make_channel_selector_type(),
                                                 make_channel_selector_type(), make_scalar(),
                                                 make_image_filter(false), make_image_filter());
        break;
    case TILE:
        filter = SkTileImageFilter::Create(make_rect(), make_rect(), make_image_filter(false));
        break;
    case PICTURE:
    {
        SkRTreeFactory factory;
        SkPictureRecorder recorder;
        SkCanvas* recordingCanvas = recorder.beginRecording(SkIntToScalar(kBitmapSize), 
                                                            SkIntToScalar(kBitmapSize), 
                                                            &factory, 0);
        drawSomething(recordingCanvas);
        SkAutoTUnref<SkPicture> pict(recorder.endRecording());
        filter = SkPictureImageFilter::Create(pict.get(), make_rect());
    }
        break;
    default:
        break;
    }
    return (filter || canBeNull) ? filter : make_image_filter(canBeNull);
}

DEF_TEST(Serialization, reporter) {
    // Test matrix serialization
    {
        SkMatrix matrix = SkMatrix::I();
        TestObjectSerialization(&matrix, reporter);
    }

    // Test path serialization
    {
        SkPath path;
        TestObjectSerialization(&path, reporter);
    }

    // Test region serialization
    {
        SkRegion region;
        TestObjectSerialization(&region, reporter);
    }

    // Test xfermode serialization
    {
        TestXfermodeSerialization(reporter);
    }

    // Test color filter serialization
    {
        TestColorFilterSerialization(reporter);
    }

    // Test string serialization
    {
        SkString string("string");
        TestObjectSerializationNoAlign<SkString, false>(&string, reporter);
        TestObjectSerializationNoAlign<SkString, true>(&string, reporter);
    }

    // Test rrect serialization
    {
        // SkRRect does not initialize anything.
        // An uninitialized SkRRect can be serialized,
        // but will branch on uninitialized data when deserialized.
        SkRRect rrect;
        SkRect rect = SkRect::MakeXYWH(1, 2, 20, 30);
        SkVector corners[4] = { {1, 2}, {2, 3}, {3,4}, {4,5} };
        rrect.setRectRadii(rect, corners);
        TestAlignment(&rrect, reporter);
    }

    // Test readByteArray
    {
        unsigned char data[kArraySize] = { 1, 2, 3 };
        TestArraySerialization(data, reporter);
    }

    // Test readColorArray
    {
        SkColor data[kArraySize] = { SK_ColorBLACK, SK_ColorWHITE, SK_ColorRED };
        TestArraySerialization(data, reporter);
    }

    // Test readIntArray
    {
        int32_t data[kArraySize] = { 1, 2, 4, 8 };
        TestArraySerialization(data, reporter);
    }

    // Test readPointArray
    {
        SkPoint data[kArraySize] = { {6, 7}, {42, 128} };
        TestArraySerialization(data, reporter);
    }

    // Test readScalarArray
    {
        SkScalar data[kArraySize] = { SK_Scalar1, SK_ScalarHalf, SK_ScalarMax };
        TestArraySerialization(data, reporter);
    }

    // Test invalid deserializations
    {
        SkImageInfo info = SkImageInfo::MakeN32Premul(kBitmapSize, kBitmapSize);

        SkBitmap validBitmap;
        validBitmap.setInfo(info);

        // Create a bitmap with a really large height
        SkBitmap invalidBitmap;
        invalidBitmap.setInfo(info.makeWH(info.width(), 1000000000));

        // The deserialization should succeed, and the rendering shouldn't crash,
        // even when the device fails to initialize, due to its size
        TestBitmapSerialization(validBitmap, invalidBitmap, true, reporter);
    }

    // Test simple SkPicture serialization
    {
        SkPictureRecorder recorder;
        draw_something(recorder.beginRecording(SkIntToScalar(kBitmapSize),
                                               SkIntToScalar(kBitmapSize),
                                               nullptr, 0));
//.........这里部分代码省略.........