author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 17 Sep 2010 09:02:29 +0300 | |
changeset 0 | 4f2f89ce4247 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (C) 2010 Google Inc. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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|
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// This file input format is based loosely on |
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// WebKitTools/DumpRenderTree/ImageDiff.m |
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|
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// The exact format of this tool's output to stdout is important, to match |
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// what the run-webkit-tests script expects. |
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#include "config.h" |
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#include "gfx/codec/png_codec.h" |
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#include <algorithm> |
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#include <stdio.h> |
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#include <string.h> |
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#include <vector> |
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#include <wtf/OwnArrayPtr.h> |
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#include <wtf/Vector.h> |
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#if OS(WINDOWS) |
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#include <windows.h> |
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#define PATH_MAX MAX_PATH |
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#endif |
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using namespace gfx; |
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using namespace std; |
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// Causes the app to remain open, waiting for pairs of filenames on stdin. |
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// The caller is then responsible for terminating this app. |
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static const char optionPollStdin[] = "--use-stdin"; |
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static const char optionGenerateDiff[] = "--diff"; |
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// Return codes used by this utility. |
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static const int statusSame = 0; |
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static const int statusDifferent = 1; |
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static const int statusError = 2; |
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// Color codes. |
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static const uint32_t rgbaRed = 0x000000ff; |
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static const uint32_t rgbaAlpha = 0xff000000; |
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class Image { |
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public: |
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Image() |
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: m_width(0) |
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, m_height(0) {} |
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Image(const Image& image) |
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: m_width(image.m_width) |
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, m_height(image.m_height) |
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, m_data(image.m_data) {} |
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bool hasImage() const { return m_width > 0 && m_height > 0; } |
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int width() const { return m_width; } |
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int height() const { return m_height; } |
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const unsigned char* data() const { return &m_data.front(); } |
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// Creates the image from stdin with the given data length. On success, it |
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// will return true. On failure, no other methods should be accessed. |
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bool craeteFromStdin(size_t byteLength) |
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{ |
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if (!byteLength) |
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return false; |
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OwnArrayPtr<unsigned char> source(new unsigned char[byteLength]); |
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if (fread(source.get(), 1, byteLength, stdin) != byteLength) |
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return false; |
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if (!PNGCodec::Decode(source.get(), byteLength, PNGCodec::FORMAT_RGBA, |
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&m_data, &m_width, &m_height)) { |
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clear(); |
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return false; |
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} |
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return true; |
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} |
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103 |
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// Creates the image from the given filename on disk, and returns true on |
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// success. |
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bool createFromFilename(const char* filename) |
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107 |
{ |
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FILE* f = fopen(filename, "rb"); |
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if (!f) |
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return false; |
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111 |
|
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vector<unsigned char> compressed; |
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const int bufSize = 1024; |
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unsigned char buf[bufSize]; |
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size_t numRead = 0; |
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while ((numRead = fread(buf, 1, bufSize, f)) > 0) |
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std::copy(buf, &buf[numRead], std::back_inserter(compressed)); |
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118 |
|
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fclose(f); |
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120 |
|
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if (!PNGCodec::Decode(&compressed[0], compressed.size(), |
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PNGCodec::FORMAT_RGBA, &m_data, &m_width, &m_height)) { |
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clear(); |
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return false; |
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} |
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return true; |
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} |
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128 |
|
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void clear() |
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130 |
{ |
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m_width = m_height = 0; |
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m_data.clear(); |
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} |
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134 |
|
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// Returns the RGBA value of the pixel at the given location |
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const uint32_t pixelAt(int x, int y) const |
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137 |
{ |
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ASSERT(x >= 0 && x < m_width); |
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ASSERT(y >= 0 && y < m_height); |
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return *reinterpret_cast<const uint32_t*>(&(m_data[(y * m_width + x) * 4])); |
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} |
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142 |
|
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void setPixelAt(int x, int y, uint32_t color) const |
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144 |
{ |
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ASSERT(x >= 0 && x < m_width); |
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ASSERT(y >= 0 && y < m_height); |
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void* addr = &const_cast<unsigned char*>(&m_data.front())[(y * m_width + x) * 4]; |
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*reinterpret_cast<uint32_t*>(addr) = color; |
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} |
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150 |
|
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151 |
private: |
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// pixel dimensions of the image |
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int m_width, m_height; |
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154 |
|
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vector<unsigned char> m_data; |
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}; |
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157 |
|
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float percentageDifferent(const Image& baseline, const Image& actual) |
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{ |
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int w = min(baseline.width(), actual.width()); |
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int h = min(baseline.height(), actual.height()); |
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162 |
|
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// Compute pixels different in the overlap |
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int pixelsDifferent = 0; |
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for (int y = 0; y < h; y++) { |
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for (int x = 0; x < w; x++) { |
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if (baseline.pixelAt(x, y) != actual.pixelAt(x, y)) |
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pixelsDifferent++; |
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} |
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} |
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171 |
|
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// Count pixels that are a difference in size as also being different |
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int maxWidth = max(baseline.width(), actual.width()); |
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int maxHeight = max(baseline.height(), actual.height()); |
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175 |
|
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// ...pixels off the right side, but not including the lower right corner |
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pixelsDifferent += (maxWidth - w) * h; |
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178 |
|
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// ...pixels along the bottom, including the lower right corner |
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pixelsDifferent += (maxHeight - h) * maxWidth; |
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181 |
|
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// Like the WebKit ImageDiff tool, we define percentage different in terms |
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// of the size of the 'actual' bitmap. |
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float totalPixels = static_cast<float>(actual.width()) * static_cast<float>(actual.height()); |
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if (!totalPixels) |
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return 100.0f; // When the bitmap is empty, they are 100% different. |
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return static_cast<float>(pixelsDifferent) / totalPixels * 100; |
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188 |
} |
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189 |
|
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void printHelp() |
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191 |
{ |
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fprintf(stderr, |
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"Usage:\n" |
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" ImageDiff <compare file> <reference file>\n" |
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" Compares two files on disk, returning 0 when they are the same\n" |
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" ImageDiff --use-stdin\n" |
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" Stays open reading pairs of filenames from stdin, comparing them,\n" |
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" and sending 0 to stdout when they are the same\n" |
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" ImageDiff --diff <compare file> <reference file> <output file>\n" |
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" Compares two files on disk, outputs an image that visualizes the" |
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" difference to <output file>\n"); |
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/* For unfinished webkit-like-mode (see below) |
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"\n" |
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" ImageDiff -s\n" |
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205 |
" Reads stream input from stdin, should be EXACTLY of the format\n" |
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" \"Content-length: <byte length> <data>Content-length: ...\n" |
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" it will take as many file pairs as given, and will compare them as\n" |
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208 |
" (cmp_file, reference_file) pairs\n"); |
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209 |
*/ |
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210 |
} |
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211 |
|
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int compareImages(const char* file1, const char* file2) |
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213 |
{ |
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Image actualImage; |
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Image baselineImage; |
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216 |
|
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if (!actualImage.createFromFilename(file1)) { |
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fprintf(stderr, "ImageDiff: Unable to open file \"%s\"\n", file1); |
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return statusError; |
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} |
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if (!baselineImage.createFromFilename(file2)) { |
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fprintf(stderr, "ImageDiff: Unable to open file \"%s\"\n", file2); |
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223 |
return statusError; |
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} |
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225 |
|
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226 |
float percent = percentageDifferent(actualImage, baselineImage); |
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if (percent > 0.0) { |
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// failure: The WebKit version also writes the difference image to |
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// stdout, which seems excessive for our needs. |
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printf("diff: %01.2f%% failed\n", percent); |
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return statusDifferent; |
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} |
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233 |
|
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// success |
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printf("diff: %01.2f%% passed\n", percent); |
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236 |
return statusSame; |
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237 |
|
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238 |
} |
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239 |
|
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240 |
// Untested mode that acts like WebKit's image comparator. I wrote this but |
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241 |
// decided it's too complicated. We may use it in the future if it looks useful. |
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242 |
int untestedCompareImages() |
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243 |
{ |
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244 |
Image actualImage; |
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Image baselineImage; |
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246 |
char buffer[2048]; |
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247 |
while (fgets(buffer, sizeof(buffer), stdin)) { |
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if (!strncmp("Content-length: ", buffer, 16)) { |
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249 |
char* context; |
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250 |
#if OS(WINDOWS) |
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strtok_s(buffer, " ", &context); |
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int imageSize = strtol(strtok_s(0, " ", &context), 0, 10); |
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253 |
#else |
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strtok_r(buffer, " ", &context); |
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int imageSize = strtol(strtok_r(0, " ", &context), 0, 10); |
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256 |
#endif |
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257 |
|
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258 |
bool success = false; |
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259 |
if (imageSize > 0 && !actualImage.hasImage()) { |
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260 |
if (!actualImage.craeteFromStdin(imageSize)) { |
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261 |
fputs("Error, input image can't be decoded.\n", stderr); |
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262 |
return 1; |
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263 |
} |
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264 |
} else if (imageSize > 0 && !baselineImage.hasImage()) { |
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265 |
if (!baselineImage.craeteFromStdin(imageSize)) { |
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266 |
fputs("Error, baseline image can't be decoded.\n", stderr); |
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267 |
return 1; |
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268 |
} |
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269 |
} else { |
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|
270 |
fputs("Error, image size must be specified.\n", stderr); |
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271 |
return 1; |
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272 |
} |
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273 |
} |
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|
274 |
|
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275 |
if (actualImage.hasImage() && baselineImage.hasImage()) { |
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|
276 |
float percent = percentageDifferent(actualImage, baselineImage); |
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|
277 |
if (percent > 0.0) { |
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278 |
// failure: The WebKit version also writes the difference image to |
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279 |
// stdout, which seems excessive for our needs. |
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|
280 |
printf("diff: %01.2f%% failed\n", percent); |
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|
281 |
} else { |
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282 |
// success |
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283 |
printf("diff: %01.2f%% passed\n", percent); |
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|
284 |
} |
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285 |
actualImage.clear(); |
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286 |
baselineImage.clear(); |
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287 |
} |
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288 |
fflush(stdout); |
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|
289 |
} |
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290 |
return 0; |
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291 |
} |
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|
292 |
|
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293 |
bool createImageDiff(const Image& image1, const Image& image2, Image* out) |
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294 |
{ |
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295 |
int w = min(image1.width(), image2.width()); |
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296 |
int h = min(image1.height(), image2.height()); |
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297 |
*out = Image(image1); |
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|
298 |
bool same = (image1.width() == image2.width()) && (image1.height() == image2.height()); |
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|
299 |
|
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300 |
// FIXME: do something with the extra pixels if the image sizes are different. |
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|
301 |
for (int y = 0; y < h; y++) { |
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|
302 |
for (int x = 0; x < w; x++) { |
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|
303 |
uint32_t basePixel = image1.pixelAt(x, y); |
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|
304 |
if (basePixel != image2.pixelAt(x, y)) { |
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|
305 |
// Set differing pixels red. |
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|
306 |
out->setPixelAt(x, y, rgbaRed | rgbaAlpha); |
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|
307 |
same = false; |
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Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
308 |
} else { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
309 |
// Set same pixels as faded. |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
310 |
uint32_t alpha = basePixel & rgbaAlpha; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
311 |
uint32_t newPixel = basePixel - ((alpha / 2) & rgbaAlpha); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
312 |
out->setPixelAt(x, y, newPixel); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
313 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
314 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
315 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
316 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
317 |
return same; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
318 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
319 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
320 |
static bool writeFile(const char* outFile, const unsigned char* data, size_t dataSize) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
321 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
322 |
FILE* file = fopen(outFile, "wb"); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
323 |
if (!file) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
324 |
fprintf(stderr, "ImageDiff: Unable to create file \"%s\"\n", file); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
325 |
return false; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
326 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
327 |
if (dataSize != fwrite(data, 1, dataSize, file)) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
328 |
fclose(file); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
329 |
fprintf(stderr, "ImageDiff: Unable to write data to file \"%s\"\n", file); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
330 |
return false; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
331 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
332 |
fclose(file); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
333 |
return true; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
334 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
335 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
336 |
int diffImages(const char* file1, const char* file2, const char* outFile) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
337 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
338 |
Image actualImage; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
339 |
Image baselineImage; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
340 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
341 |
if (!actualImage.createFromFilename(file1)) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
342 |
fprintf(stderr, "ImageDiff: Unable to open file \"%s\"\n", file1); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
343 |
return statusError; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
344 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
345 |
if (!baselineImage.createFromFilename(file2)) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
346 |
fprintf(stderr, "ImageDiff: Unable to open file \"%s\"\n", file2); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
347 |
return statusError; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
348 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
349 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
350 |
Image diffImage; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
351 |
bool same = createImageDiff(baselineImage, actualImage, &diffImage); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
352 |
if (same) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
353 |
return statusSame; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
354 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
355 |
vector<unsigned char> pngData; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
356 |
PNGCodec::Encode(diffImage.data(), PNGCodec::FORMAT_RGBA, diffImage.width(), |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
357 |
diffImage.height(), diffImage.width() * 4, false, &pngData); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
358 |
if (!writeFile(outFile, &pngData.front(), pngData.size())) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
359 |
return statusError; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
360 |
return statusDifferent; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
361 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
362 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
363 |
int main(int argc, const char* argv[]) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
364 |
{ |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
365 |
Vector<const char*> values; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
366 |
bool pollStdin = false; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
367 |
bool generateDiff = false; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
368 |
for (int i = 1; i < argc; ++i) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
369 |
if (!strcmp(argv[i], optionPollStdin)) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
370 |
pollStdin = true; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
371 |
else if (!strcmp(argv[i], optionGenerateDiff)) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
372 |
generateDiff = true; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
373 |
else |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
374 |
values.append(argv[i]); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
375 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
376 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
377 |
if (pollStdin) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
378 |
// Watch stdin for filenames. |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
379 |
const size_t bufferSize = PATH_MAX; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
380 |
char stdinBuffer[bufferSize]; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
381 |
char firstName[bufferSize]; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
382 |
bool haveFirstName = false; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
383 |
while (fgets(stdinBuffer, bufferSize, stdin)) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
384 |
if (!stdinBuffer[0]) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
385 |
continue; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
386 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
387 |
if (haveFirstName) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
388 |
// compareImages writes results to stdout unless an error occurred. |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
389 |
if (compareImages(firstName, stdinBuffer) == statusError) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
390 |
printf("error\n"); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
391 |
fflush(stdout); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
392 |
haveFirstName = false; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
393 |
} else { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
394 |
// Save the first filename in another buffer and wait for the second |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
395 |
// filename to arrive via stdin. |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
396 |
strcpy(firstName, stdinBuffer); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
397 |
haveFirstName = true; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
398 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
399 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
400 |
return 0; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
401 |
} |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
402 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
403 |
if (generateDiff) { |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
404 |
if (values.size() == 3) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
405 |
return diffImages(values[0], values[1], values[2]); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
406 |
} else if (values.size() == 2) |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
407 |
return compareImages(argv[1], argv[2]); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
|
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
printHelp(); |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
410 |
return statusError; |
4f2f89ce4247
Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
411 |
} |