void read_and_check_pixels(skiatest::Reporter* reporter, GrTexture* texture, U8CPU expected,
                           U8CPU error, const char* subtestName) {
    int w = texture->width();
    int h = texture->height();
    SkAutoTMalloc<uint32_t> readData(w * h);
    memset(readData.get(), 0, sizeof(uint32_t) * w * h);
    if (!texture->readPixels(0, 0, w, h, texture->config(), readData.get())) {
        ERRORF(reporter, "Could not read pixels for %s.", subtestName);
        return;
    }
    for (int j = 0; j < h; ++j) {
        for (int i = 0; i < w; ++i) {
            uint32_t read = readData[j * w + i];

            bool success =
                check_value(read & 0xff, expected, error) &&
                check_value((read >> 8) & 0xff, expected, error) &&
                check_value((read >> 16) & 0xff, expected, error);

            if (!success) {
                ERRORF(reporter, "Expected 0xff%02x%02x%02x, read back as 0x%08x in %s at %d, %d.",
                       expected, expected, expected, read, subtestName, i, j);
                return;
            }
        }
    }
}

    void run(skiatest::Reporter* reporter) {
        GrMockOptions mockOptions;
        mockOptions.fInstanceAttribSupport = true;
        mockOptions.fMapBufferFlags = GrCaps::kCanMap_MapFlag;
        mockOptions.fConfigOptions[kAlpha_half_GrPixelConfig].fRenderability =
                GrMockOptions::ConfigOptions::Renderability::kNonMSAA;
        mockOptions.fConfigOptions[kAlpha_half_GrPixelConfig].fTexturable = true;
        mockOptions.fGeometryShaderSupport = true;
        mockOptions.fIntegerSupport = true;
        mockOptions.fFlatInterpolationSupport = true;

        GrContextOptions ctxOptions;
        ctxOptions.fAllowPathMaskCaching = false;
        ctxOptions.fGpuPathRenderers = GpuPathRenderers::kCoverageCounting;

        fMockContext = GrContext::MakeMock(&mockOptions, ctxOptions);
        if (!fMockContext) {
            ERRORF(reporter, "could not create mock context");
            return;
        }
        if (!fMockContext->unique()) {
            ERRORF(reporter, "mock context is not unique");
            return;
        }

        CCPRPathDrawer ccpr(fMockContext.get(), reporter);
        if (!ccpr.valid()) {
            return;
        }

        fPath.moveTo(0, 0);
        fPath.cubicTo(50, 50, 0, 50, 50, 0);
        this->onRun(reporter, ccpr);
    }

DEF_TEST(JpegIdentification, r) {
    static struct {
        const char* path;
        bool isJfif;
        SkJFIFInfo::Type type;
    } kTests[] = {{"CMYK.jpg", false, SkJFIFInfo::kGrayscale},
                  {"color_wheel.jpg", true, SkJFIFInfo::kYCbCr},
                  {"grayscale.jpg", true, SkJFIFInfo::kGrayscale},
                  {"mandrill_512_q075.jpg", true, SkJFIFInfo::kYCbCr},
                  {"randPixels.jpg", true, SkJFIFInfo::kYCbCr}};
    for (size_t i = 0; i < SK_ARRAY_COUNT(kTests); ++i) {
        SkAutoTUnref<SkData> data(
                load_resource(r, "JpegIdentification", kTests[i].path));
        if (!data) {
            continue;
        }
        SkJFIFInfo info;
        bool isJfif = SkIsJFIF(data, &info);
        if (isJfif != kTests[i].isJfif) {
            ERRORF(r, "%s failed isJfif test", kTests[i].path);
            continue;
        }
        if (!isJfif) {
            continue;  // not applicable
        }
        if (kTests[i].type != info.fType) {
            ERRORF(r, "%s failed jfif type test", kTests[i].path);
            continue;
        }
        if (r->verbose()) {
            SkDebugf("\nJpegIdentification: %s [%d x %d]\n", kTests[i].path,
                     info.fSize.width(), info.fSize.height());
        }
    }
}

void test_write_pixels(skiatest::Reporter* reporter,
                       GrSurfaceContext* dstContext, bool expectedToWork,
                       const char* testName) {
    int pixelCnt = dstContext->width() * dstContext->height();
    SkAutoTMalloc<uint32_t> pixels(pixelCnt);
    for (int y = 0; y < dstContext->width(); ++y) {
        for (int x = 0; x < dstContext->height(); ++x) {
            pixels.get()[y * dstContext->width() + x] =
                GrPremulColor(GrColorPackRGBA(x, y, x + y, 2*y));
        }
    }

    SkImageInfo ii = SkImageInfo::Make(dstContext->width(), dstContext->height(),
                                       kRGBA_8888_SkColorType, kPremul_SkAlphaType);
    bool write = dstContext->writePixels(ii, pixels.get(), 0, 0, 0);
    if (!write) {
        if (expectedToWork) {
            ERRORF(reporter, "%s: Error writing to texture.", testName);
        }
        return;
    }

    if (write && !expectedToWork) {
        ERRORF(reporter, "%s: writePixels succeeded when it wasn't supposed to.", testName);
        return;
    }

    test_read_pixels(reporter, dstContext, pixels.get(), testName);
}

/**
* @brief Prepares AES encryption and decryption contexts.
*
* Create an 256 bit key and IV using the supplied key_data. salt can be added for taste.
* Fills in the encryption and decryption ctx objects and returns 0 on success
*
* Code adapted from: http://saju.net.in/code/misc/openssl_aes.c.txt
*
* @param key_data
* @param key_data_len
* @param salt
* @param e_ctx
* @param d_ctx
*
* @return 0 on success
*/
int aes_init(unsigned char *en_key_data, int en_key_data_len, 
			 unsigned char *de_key_data, int de_key_data_len, 
			 unsigned char *salt, EVP_CIPHER_CTX *e_ctx, 
             EVP_CIPHER_CTX *d_ctx) {
	int i, nrounds = 5;
	unsigned char en_key[32], en_iv[32], de_key[32], de_iv[32];
	
	/*
	 * Gen key & IV for AES 256 CBC mode. A SHA1 digest is used to hash the supplied key material.
	 * nrounds is the number of times the we hash the material. More rounds are more secure but
	 * slower.
	 */
	i = EVP_BytesToKey(EVP_aes_256_cbc(), EVP_sha1(), salt, en_key_data, en_key_data_len, nrounds, en_key, en_iv);
	if (i != 32) {
	  ERRORF("Key size is %d bits - should be 256 bits", i);
	  return -1;
	}
	if (EVP_EncryptInit_ex(e_ctx, EVP_aes_256_cbc(), NULL, en_key, en_iv) != 1) {
		ERROR("ERROR initializing encryption context");
		return -1;
	}

	i = EVP_BytesToKey(EVP_aes_256_cbc(), EVP_sha1(), salt, de_key_data, de_key_data_len, nrounds, de_key, de_iv);
	if (i != 32) {
	  ERRORF("Key size is %d bits - should be 256 bits", i);
	  return -1;
	}
	if (EVP_DecryptInit_ex(d_ctx, EVP_aes_256_cbc(), NULL, de_key, de_iv) != 1) {
		ERROR("ERROR initializing decryption context");
		return -1;
	}
	
	return 0;
}

// Asserts that asset == expected and is peekable.
static void stream_peek_test(skiatest::Reporter* rep,
                             SkStreamAsset* asset,
                             const SkData* expected) {
    if (asset->getLength() != expected->size()) {
        ERRORF(rep, "Unexpected length.");
        return;
    }
    SkRandom rand;
    uint8_t buffer[4096];
    const uint8_t* expect = expected->bytes();
    for (size_t i = 0; i < asset->getLength(); ++i) {
        uint32_t maxSize =
                SkToU32(SkTMin(sizeof(buffer), asset->getLength() - i));
        size_t size = rand.nextRangeU(1, maxSize);
        SkASSERT(size >= 1);
        SkASSERT(size <= sizeof(buffer));
        SkASSERT(size + i <= asset->getLength());
        if (asset->peek(buffer, size) < size) {
            ERRORF(rep, "Peek Failed!");
            return;
        }
        if (0 != memcmp(buffer, &expect[i], size)) {
            ERRORF(rep, "Peek returned wrong bytes!");
            return;
        }
        uint8_t value;
        REPORTER_ASSERT(rep, 1 == asset->read(&value, 1));
        if (value != expect[i]) {
            ERRORF(rep, "Read Failed!");
            return;
        }
    }
}

char* PEGCU_get_confpath(){
	char* config;
	config = getenv("EGC_CONFIG");
	if(config == NULL){
		ERRORF("EGC: No config file.\n");
		ERRORF("   : the file name must be set on ENV value \"EGC_CONFIG\".\n");
		ERROR_EXIT();
	}
	return config;
}

DEF_TEST(SkDeflateWStream, r) {
    SkRandom random(123456);
    for (int i = 0; i < 50; ++i) {
        uint32_t size = random.nextULessThan(10000);
        SkAutoTMalloc<uint8_t> buffer(size);
        for (uint32_t j = 0; j < size; ++j) {
            buffer[j] = random.nextU() & 0xff;
        }

        SkDynamicMemoryWStream dynamicMemoryWStream;
        {
            SkDeflateWStream deflateWStream(&dynamicMemoryWStream);
            uint32_t j = 0;
            while (j < size) {
                uint32_t writeSize =
                        SkTMin(size - j, random.nextRangeU(1, 400));
                if (!deflateWStream.write(&buffer[j], writeSize)) {
                    ERRORF(r, "something went wrong.");
                    return;
                }
                j += writeSize;
            }
        }
        SkAutoTDelete<SkStreamAsset> compressed(
                dynamicMemoryWStream.detachAsStream());
        SkAutoTDelete<SkStreamAsset> decompressed(stream_inflate(compressed));

        if (decompressed->getLength() != size) {
            ERRORF(r, "Decompression failed to get right size [%d]."
                   " %u != %u", i,  (unsigned)(decompressed->getLength()),
                   (unsigned)size);
            SkString s = SkStringPrintf("/tmp/deftst_compressed_%d", i);
            SkFILEWStream o(s.c_str());
            o.writeStream(compressed.get(), compressed->getLength());
            compressed->rewind();

            s = SkStringPrintf("/tmp/deftst_input_%d", i);
            SkFILEWStream o2(s.c_str());
            o2.write(&buffer[0], size);

            continue;
        }
        uint32_t minLength = SkTMin(size,
                                    (uint32_t)(decompressed->getLength()));
        for (uint32_t i = 0; i < minLength; ++i) {
            uint8_t c;
            SkDEBUGCODE(size_t rb =)decompressed->read(&c, sizeof(uint8_t));
            SkASSERT(sizeof(uint8_t) == rb);
            if (buffer[i] != c) {
                ERRORF(r, "Decompression failed at byte %u.", (unsigned)i);
                break;
            }
        }
    }
}

int PEGCU_get_jobid(){
	char* idstr;
	int jid;
	idstr = getenv("EGC_JID");
	if(idstr == NULL){
		ERRORF("EGC: No Assined JOBID.\n");
		ERRORF("   : the jobid must be set on ENV value \"EGC_JID\".\n");
		ERROR_EXIT();
	}
	jid = atoi(idstr);
	return jid;
}

 CCPRPathDrawer(GrContext* ctx, skiatest::Reporter* reporter)
         : fCtx(ctx)
         , fCCPR(fCtx->contextPriv().drawingManager()->getCoverageCountingPathRenderer())
         , fRTC(fCtx->makeDeferredRenderTargetContext(SkBackingFit::kExact, kCanvasSize,
                                                      kCanvasSize, kRGBA_8888_GrPixelConfig,
                                                      nullptr)) {
     if (!fCCPR) {
         ERRORF(reporter, "ccpr not enabled in GrContext for ccpr tests");
     }
     if (!fRTC) {
         ERRORF(reporter, "failed to create GrRenderTargetContext for ccpr tests");
     }
 }

DEF_GPUTEST_FOR_ALL_GL_CONTEXTS(VertexAttributeCount, reporter, ctxInfo) {
    GrContext* context = ctxInfo.fGrContext;
    GrTextureDesc desc;
    desc.fHeight = 1;
    desc.fWidth = 1;
    desc.fFlags = kRenderTarget_GrSurfaceFlag;
    desc.fConfig = kRGBA_8888_GrPixelConfig;
    SkAutoTUnref<GrTexture> target(context->textureProvider()->createTexture(desc,
                                                                             SkBudgeted::kYes));
    if (!target) {
        ERRORF(reporter, "Could not create render target.");
        return;
    }
    SkAutoTUnref<GrDrawContext> dc(context->drawContext(target->asRenderTarget()));
    if (!dc) {
        ERRORF(reporter, "Could not create draw context.");
        return;
    }
    int attribCnt = context->caps()->maxVertexAttributes();
    if (!attribCnt) {
        ERRORF(reporter, "No attributes allowed?!");
        return;
    }
    context->flush();
    context->resetGpuStats();
#if GR_GPU_STATS
    REPORTER_ASSERT(reporter, context->getGpu()->stats()->numDraws() == 0);
    REPORTER_ASSERT(reporter, context->getGpu()->stats()->numFailedDraws() == 0);
#endif
    SkAutoTUnref<GrDrawBatch> batch;
    GrPipelineBuilder pb;
    pb.setRenderTarget(target->asRenderTarget());
    // This one should succeed.
    batch.reset(new Batch(attribCnt));
    dc->drawContextPriv().testingOnly_drawBatch(pb, batch);
    context->flush();
#if GR_GPU_STATS
    REPORTER_ASSERT(reporter, context->getGpu()->stats()->numDraws() == 1);
    REPORTER_ASSERT(reporter, context->getGpu()->stats()->numFailedDraws() == 0);
#endif
    context->resetGpuStats();
    // This one should fail.
    batch.reset(new Batch(attribCnt+1));
    dc->drawContextPriv().testingOnly_drawBatch(pb, batch);
    context->flush();
#if GR_GPU_STATS
    REPORTER_ASSERT(reporter, context->getGpu()->stats()->numDraws() == 0);
    REPORTER_ASSERT(reporter, context->getGpu()->stats()->numFailedDraws() == 1);
#endif
}

int app_receive_data_packet(int fd, int* seq_number, char** buffer, int* length)
{
    char* packet_buffer;
    ssize_t total_size = ll_read(fd, &packet_buffer);
    if (total_size < 0)
    {
        perror("ll_read");
        return -1;
    }

    int ctrl = packet_buffer[0];

    if (ctrl != CONTROL_FIELD_DATA)
    {
        ERRORF("Control field received (%d) is not CONTROL_FIELD_DATA", ctrl);
        return -1;
    }

    int seq = (unsigned char)packet_buffer[1];
    int32 size;
    size.b[0] = packet_buffer[2];
    size.b[1] = packet_buffer[3];
    size.b[2] = packet_buffer[4];
    size.b[3] = packet_buffer[5];

    *buffer = malloc(size.w);
    memcpy(*buffer, &packet_buffer[6], size.w);
    free(packet_buffer);

    *seq_number = seq;
    *length = size.w;

    return 0;
}

static void test_dimensions(skiatest::Reporter* r, const char path[]) {
    // Create the codec from the resource file
    SkAutoTDelete<SkStream> stream(resource(path));
    if (!stream) {
        SkDebugf("Missing resource '%s'\n", path);
        return;
    }
    SkAutoTDelete<SkCodec> codec(SkCodec::NewFromStream(stream.detach()));
    if (!codec) {
        ERRORF(r, "Unable to create codec '%s'", path);
        return;
    }

    // Check that the decode is successful for a variety of scales
    for (float scale = -0.05f; scale < 2.0f; scale += 0.05f) {
        // Scale the output dimensions
        SkISize scaledDims = codec->getScaledDimensions(scale);
        SkImageInfo scaledInfo = codec->getInfo().makeWH(scaledDims.width(), scaledDims.height());

        // Set up for the decode
        size_t rowBytes = scaledDims.width() * sizeof(SkPMColor);
        size_t totalBytes = scaledInfo.getSafeSize(rowBytes);
        SkAutoTMalloc<SkPMColor> pixels(totalBytes);

        SkImageGenerator::Result result =
                codec->getPixels(scaledInfo, pixels.get(), rowBytes, NULL, NULL, NULL);
        REPORTER_ASSERT(r, SkImageGenerator::kSuccess == result);
    }
}

DEF_TEST(DiscardablePixelRef_SecondLockColorTableCheck, r) {
    SkString resourceDir = GetResourcePath();
    SkString path = SkOSPath::Join(resourceDir.c_str(), "randPixels.gif");
    if (!sk_exists(path.c_str())) {
        return;
    }
    SkAutoDataUnref encoded(SkData::NewFromFileName(path.c_str()));
    SkBitmap bitmap;
    if (!SkInstallDiscardablePixelRef(
                SkDecodingImageGenerator::Create(
                    encoded, SkDecodingImageGenerator::Options()), &bitmap)) {
#ifndef SK_BUILD_FOR_WIN
        ERRORF(r, "SkInstallDiscardablePixelRef [randPixels.gif] failed.");
#endif
        return;
    }
    if (kIndex_8_SkColorType != bitmap.colorType()) {
        return;
    }
    {
        SkAutoLockPixels alp(bitmap);
        REPORTER_ASSERT(r, bitmap.getColorTable() && "first pass");
    }
    {
        SkAutoLockPixels alp(bitmap);
        REPORTER_ASSERT(r, bitmap.getColorTable() && "second pass");
    }
}

void check_pixels(skiatest::Reporter* reporter, const SkBitmap& bitmap) {
    const uint32_t* canvasPixels = static_cast<const uint32_t*>(bitmap.getPixels());

    bool failureFound = false;
    SkPMColor expectedPixel;
    for (int cy = 0; cy < CHILD_H && !failureFound; ++cy) {
        for (int cx = 0; cx < CHILD_W && !failureFound; ++cx) {
            SkPMColor canvasPixel = canvasPixels[cy * CHILD_W + cx];
            if (cy < CHILD_H / 2) {
                if (cx < CHILD_W / 2) {
                    expectedPixel = 0xFF0000FF; // Red
                } else {
                    expectedPixel = 0xFFFF0000; // Blue
                }
            } else {
                expectedPixel = 0xFF00FF00; // Green
            }
            if (expectedPixel != canvasPixel) {
                failureFound = true;
                ERRORF(reporter, "Wrong color at %d, %d. Got 0x%08x when we expected 0x%08x",
                       cx, cy, canvasPixel, expectedPixel);
            }
        }
    }
}

/**
 * Finally, make sure that if we get ETC1 data from a PKM file that we can then
 * accurately write it out into a KTX file (i.e. transferring the ETC1 data from
 * the PKM to the KTX should produce an identical KTX to the one we have on file)
 */
DEF_TEST(KtxReexportPKM, reporter) {
    SkString pkmFilename = GetResourcePath("mandrill_128.pkm");

    // Load PKM file into a bitmap
    SkBitmap etcBitmap;
    SkAutoTUnref<SkData> fileData(SkData::NewFromFileName(pkmFilename.c_str()));
    if (nullptr == fileData) {
        SkDebugf("KtxReexportPKM: can't load test file %s\n", pkmFilename.c_str());
        return;
    }

    bool installDiscardablePixelRefSuccess =
        SkDEPRECATED_InstallDiscardablePixelRef(fileData, &etcBitmap);
    if (!installDiscardablePixelRefSuccess) {
        ERRORF(reporter, "failed to create discardable pixelRef from KTX file");
        return;
    }

    // Write the bitmap out to a KTX file.
    SkData *ktxDataPtr = SkImageEncoder::EncodeData(etcBitmap, SkImageEncoder::kKTX_Type, 0);
    SkAutoDataUnref newKtxData(ktxDataPtr);
    REPORTER_ASSERT(reporter, ktxDataPtr);

    // See is this data is identical to data in existing ktx file.
    SkString ktxFilename = GetResourcePath("mandrill_128.ktx");
    SkAutoDataUnref oldKtxData(SkData::NewFromFileName(ktxFilename.c_str()));
    REPORTER_ASSERT(reporter, oldKtxData->equals(newKtxData));
}

void Arc::GraphicsSystem::resetGL( void )
{
	// Setup OpenGL for drawing 2D
    glViewport(0, 0, (int)_windowSize.X, (int)_windowSize.Y);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();

    glOrtho(0, (int)_windowSize.X, (int)_windowSize.Y, 0, 1, -1);
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();

	// Enable blending and set the blending function for scaling
    glEnable(GL_BLEND);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

	// Clear the background to the clear color
    glClearColor(_clearColor.getFracR(), _clearColor.getFracG(), _clearColor.getFracB(), _clearColor.getFracA());
    glClear(GL_COLOR_BUFFER_BIT);
    SDL_GL_SwapBuffers();

    GLenum error = glGetError();

	// Handle any errors
    if (error != GL_NO_ERROR)
    {
        ERRORF(toString(), "Failed to initialize OpenGL (%s)", gluErrorString(error));
        die();
    }

	// Tell any textures or fonts to reload their data
    dispatchEvent(Event(EVENT_GRAPHICS_RESET));
}

DEF_TEST(Image_NewFromGenerator, r) {
    TestImageGenerator::TestType testTypes[] = {
        TestImageGenerator::kFailGetPixels_TestType,
        TestImageGenerator::kSucceedGetPixels_TestType,
    };
    for (size_t i = 0; i < SK_ARRAY_COUNT(testTypes); ++i) {
        TestImageGenerator::TestType test = testTypes[i];
        SkImageGenerator* gen = SkNEW_ARGS(TestImageGenerator, (test, r));
        SkAutoTUnref<SkImage> image(SkImage::NewFromGenerator(gen));
        if (NULL == image.get()) {
            ERRORF(r, "SkImage::NewFromGenerator unexpecedly failed ["
                   SK_SIZE_T_SPECIFIER "]", i);
            continue;
        }
        REPORTER_ASSERT(r, TestImageGenerator::Width() == image->width());
        REPORTER_ASSERT(r, TestImageGenerator::Height() == image->height());

        SkBitmap bitmap;
        bitmap.allocN32Pixels(TestImageGenerator::Width(), TestImageGenerator::Height());
        SkCanvas canvas(bitmap);
        const SkColor kDefaultColor = 0xffabcdef;
        canvas.clear(kDefaultColor);
        canvas.drawImage(image, 0, 0, NULL);
        if (TestImageGenerator::kSucceedGetPixels_TestType == test) {
            REPORTER_ASSERT(
                r, TestImageGenerator::Color() == *bitmap.getAddr32(0, 0));
        } else {
            REPORTER_ASSERT(r, kDefaultColor == bitmap.getColor(0,0));
        }
    }
}

/**
* @brief Sign a message with provided RSA key.
*
* Hash msg (SHA1) and encrypt the resulting digest. The buffer supplied to hold
* the signature must be at least RSA_size(keypair) bytes long.
*
* @param msg Data to sign.
* @param msg_len Size of data to sign.
* @param sigbuf Buffer to hold created signature.
* @param sigbuflen Space available for signature.
*
* @return Size of signature on success, 0 on error.
*/
uint32_t sign(RSA *keypair, char *msg, size_t msg_len, char *sigbuf, int sigbuflen) {
	
	if (sigbuflen < RSA_size(keypair)) {
		ERROR("ERROR: Could not sign message because sigbuf is too small");
		return 0;
	}

	/* first hash msg */
	unsigned char *digest = hash(msg, msg_len);
	if (digest == NULL) {
		ERROR("ERROR: Unable to hash message");
		return 0;
	}

	/* now sign the hash */
    uint32_t siglen;
    if (RSA_sign(NID_sha1, digest, SHA_DIGEST_LENGTH, (unsigned char*)sigbuf, &siglen, keypair) != 1) {

    	char *err = (char *)malloc(130); //FIXME?
        ERR_load_crypto_strings();
        ERR_error_string(ERR_get_error(), err);
        ERRORF("Error signing message: %s", err);
        
        free(err);
        return 0;
    }

	free(digest);
	return siglen;
}

DEF_TEST(SVGDevice_image_shader_tileboth, reporter) {
    SkDOM dom;
    SkPaint paint;
    int imageWidth = 3, imageHeight = 3;
    int rectWidth = 10, rectHeight = 10;
    ImageShaderTestSetup(&dom, &paint, imageWidth, imageHeight, rectWidth, rectHeight,
                         SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode);

    const SkDOM::Node* root = dom.finishParsing();

    const SkDOM::Node *patternNode, *imageNode, *rectNode;
    const SkDOM::Node* innerSvg = dom.getFirstChild(root, "svg");
    if (innerSvg == nullptr) {
        ERRORF(reporter, "inner svg element not found");
        return;
    }
    bool structureAppropriate =
            FindImageShaderNodes(reporter, &dom, innerSvg, &patternNode, &imageNode, &rectNode);
    REPORTER_ASSERT(reporter, structureAppropriate);

    // the imageNode should always maintain its size.
    REPORTER_ASSERT(reporter, atoi(dom.findAttr(imageNode, "width")) == imageWidth);
    REPORTER_ASSERT(reporter, atoi(dom.findAttr(imageNode, "height")) == imageHeight);

    REPORTER_ASSERT(reporter, atoi(dom.findAttr(patternNode, "width")) == imageWidth);
    REPORTER_ASSERT(reporter, atoi(dom.findAttr(patternNode, "height")) == imageHeight);
}