--- a/WebKitTools/DumpRenderTree/qt/ImageDiff.cpp Fri Sep 17 09:02:29 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,146 +0,0 @@
-/*
- Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies)
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public License
- along with this library; see the file COPYING.LIB. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
-*/
-
-#include <QtCore/qmath.h>
-
-#include <QApplication>
-#include <QBuffer>
-#include <QByteArray>
-#include <QImage>
-#include <QStringList>
-
-#include <stdio.h>
-
-int main(int argc, char* argv[])
-{
- QCoreApplication app(argc, argv);
-
- qreal tolerance = 0;
-
- QStringList args = app.arguments();
- for (int i = 0; i < argc; ++i)
- if (args[i] == "-t" || args[i] == "--tolerance")
- tolerance = args[i + 1].toDouble();
-
- char buffer[2048];
- QImage actualImage;
- QImage baselineImage;
-
- while (fgets(buffer, sizeof(buffer), stdin)) {
- // remove the CR
- char* newLineCharacter = strchr(buffer, '\n');
- if (newLineCharacter)
- *newLineCharacter = '\0';
-
- if (!strncmp("Content-Length: ", buffer, 16)) {
- strtok(buffer, " ");
- int imageSize = strtol(strtok(0, " "), 0, 10);
-
- if (imageSize <= 0) {
- fputs("error, image size must be specified.\n", stdout);
- } else {
- unsigned char buffer[2048];
- QBuffer data;
-
- // Read all the incoming chunks
- data.open(QBuffer::WriteOnly);
- while (imageSize > 0) {
- size_t bytesToRead = qMin(imageSize, 2048);
- size_t bytesRead = fread(buffer, 1, bytesToRead, stdin);
- data.write(reinterpret_cast<const char*>(buffer), bytesRead);
- imageSize -= static_cast<int>(bytesRead);
- }
-
- // Convert into QImage
- QImage decodedImage;
- decodedImage.loadFromData(data.data(), "PNG");
- decodedImage.convertToFormat(QImage::Format_ARGB32);
-
- // Place it in the right place
- if (actualImage.isNull())
- actualImage = decodedImage;
- else
- baselineImage = decodedImage;
- }
- }
-
- if (!actualImage.isNull() && !baselineImage.isNull()) {
-
- if (actualImage.size() != baselineImage.size()) {
- fprintf(stderr, "error, test and reference image have different properties.\n");
- fflush(stderr);
- } else {
-
- int w = actualImage.width();
- int h = actualImage.height();
- QImage diffImage(w, h, QImage::Format_ARGB32);
-
- int count = 0;
- qreal sum = 0;
- qreal maxDistance = 0;
-
- for (int x = 0; x < w; ++x)
- for (int y = 0; y < h; ++y) {
- QRgb pixel = actualImage.pixel(x, y);
- QRgb basePixel = baselineImage.pixel(x, y);
- qreal red = (qRed(pixel) - qRed(basePixel)) / static_cast<float>(qMax(255 - qRed(basePixel), qRed(basePixel)));
- qreal green = (qGreen(pixel) - qGreen(basePixel)) / static_cast<float>(qMax(255 - qGreen(basePixel), qGreen(basePixel)));
- qreal blue = (qBlue(pixel) - qBlue(basePixel)) / static_cast<float>(qMax(255 - qBlue(basePixel), qBlue(basePixel)));
- qreal alpha = (qAlpha(pixel) - qAlpha(basePixel)) / static_cast<float>(qMax(255 - qAlpha(basePixel), qAlpha(basePixel)));
- qreal distance = qSqrt(red * red + green * green + blue * blue + alpha * alpha) / 2.0f;
- int gray = distance * qreal(255);
- diffImage.setPixel(x, y, qRgb(gray, gray, gray));
- if (distance >= 1 / qreal(255)) {
- count++;
- sum += distance;
- maxDistance = qMax(maxDistance, distance);
- }
- }
-
- qreal difference = 0;
- if (count)
- difference = 100 * sum / static_cast<qreal>(w * h);
- if (difference <= tolerance) {
- difference = 0;
- } else {
- difference = qRound(difference * 100) / 100;
- difference = qMax(difference, qreal(0.01));
- }
-
- if (!count) {
- fprintf(stdout, "diff: %01.2f%% passed\n", difference);
- } else {
- QBuffer buffer;
- buffer.open(QBuffer::WriteOnly);
- diffImage.save(&buffer, "PNG");
- buffer.close();
- const QByteArray &data = buffer.data();
- printf("Content-Length: %lu\n", static_cast<unsigned long>(data.length()));
- fwrite(data.constData(), 1, data.length(), stdout);
-
- fprintf(stdout, "diff: %01.2f%% failed\n", difference);
- }
-
- fflush(stdout);
- }
- }
- }
-
- return 0;
-}