Tools/WebKitTestRunner/qt/TestInvocationQt.cpp

/*
 * Copyright (C) 2011 Apple Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions
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 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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#include "config.h"

#include "TestInvocation.h"

#include <QBuffer>
#include <QCryptographicHash>
#include <WebKit2/WKImageQt.h>
#include <stdio.h>
#include <wtf/Assertions.h>
#include <wtf/UnusedParam.h>

namespace WTR {

static void dumpImage(const QImage& image)
{
    QBuffer buffer;
    buffer.open(QBuffer::WriteOnly);
    image.save(&buffer, "PNG");
    buffer.close();
    const QByteArray& data = buffer.data();

    printf("Content-Type: %s\n", "image/png");
    printf("Content-Length: %lu\n", static_cast<unsigned long>(data.length()));

    const quint32 bytesToWriteInOneChunk = 1 << 15;
    quint32 dataRemainingToWrite = data.length();
    const char* ptr = data.data();
    while (dataRemainingToWrite) {
        quint32 bytesToWriteInThisChunk = qMin(dataRemainingToWrite, bytesToWriteInOneChunk);
        quint32 bytesWritten = fwrite(ptr, 1, bytesToWriteInThisChunk, stdout);
        if (bytesWritten != bytesToWriteInThisChunk)
            break;
        dataRemainingToWrite -= bytesWritten;
        ptr += bytesWritten;
    }

    fflush(stdout);
}

void TestInvocation::dumpPixelsAndCompareWithExpected(WKImageRef imageRef, WKArrayRef repaintRects)
{
    //FIXME: https://bugs.webkit.org/show_bug.cgi?id=68870
    UNUSED_PARAM(repaintRects);

    QImage image = WKImageCreateQImage(imageRef);
    QCryptographicHash hash(QCryptographicHash::Md5);
    for (unsigned row = 0; row < image.height(); ++row)
        hash.addData(reinterpret_cast<const char*>(image.constScanLine(row)), image.bytesPerLine());

    QByteArray actualHash = hash.result().toHex();
    ASSERT(actualHash.size() == 32);
    if (!compareActualHashToExpectedAndDumpResults(actualHash)) {
        image.setText("checksum", actualHash);
        dumpImage(image);
    }
}

} // namespace WTR