1e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke/* 2e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * Copyright (C) 2009 Apple Inc. All rights reserved. 3e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * (C) 2009 Brent Fulgham <bfulgham@webkit.org> 4e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * (C) 2010 Igalia S.L 5e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * 6e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * Redistribution and use in source and binary forms, with or without 7e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * modification, are permitted provided that the following conditions 8e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * are met: 9e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * 10e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * 1. Redistributions of source code must retain the above copyright 11e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * notice, this list of conditions and the following disclaimer. 12e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * 2. Redistributions in binary form must reproduce the above copyright 13e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * notice, this list of conditions and the following disclaimer in the 14e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * documentation and/or other materials provided with the distribution. 15e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 16e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * its contributors may be used to endorse or promote products derived 17e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * from this software without specific prior written permission. 18e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * 19e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 20e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 21e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 22e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 23e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 24e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 26e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke */ 30e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 31e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke#include "config.h" 32e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke#include "PixelDumpSupportCairo.h" 33e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 34e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke#include "DumpRenderTree.h" 35e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke#include "PixelDumpSupport.h" 36e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke#include <algorithm> 37e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke#include <ctype.h> 38e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke#include <wtf/Assertions.h> 39e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke#include <wtf/MD5.h> 40e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke#include <wtf/RefPtr.h> 41e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke#include <wtf/StringExtras.h> 42e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 43e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarkeusing namespace std; 44e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 45e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarkestatic cairo_status_t writeFunction(void* closure, const unsigned char* data, unsigned int length) 46e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke{ 47e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke Vector<unsigned char>* in = reinterpret_cast<Vector<unsigned char>*>(closure); 48e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke in->append(data, length); 49e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke return CAIRO_STATUS_SUCCESS; 50e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke} 51e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 522daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdochstatic void printPNG(cairo_surface_t* image, const char* checksum) 53e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke{ 54e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke Vector<unsigned char> pixelData; 55e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke // Only PNG output is supported for now. 56e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke cairo_surface_write_to_png_stream(image, writeFunction, &pixelData); 57e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 58e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke const size_t dataLength = pixelData.size(); 59e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke const unsigned char* data = pixelData.data(); 60e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 612daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch printPNG(data, dataLength, checksum); 62e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke} 63e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 64e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarkevoid computeMD5HashStringForBitmapContext(BitmapContext* context, char hashString[33]) 65e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke{ 66e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke cairo_t* bitmapContext = context->cairoContext(); 67e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke cairo_surface_t* surface = cairo_get_target(bitmapContext); 68e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 69e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke ASSERT(cairo_image_surface_get_format(surface) == CAIRO_FORMAT_ARGB32); // ImageDiff assumes 32 bit RGBA, we must as well. 70e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 71e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke size_t pixelsHigh = cairo_image_surface_get_height(surface); 72e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke size_t pixelsWide = cairo_image_surface_get_width(surface); 73e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke size_t bytesPerRow = cairo_image_surface_get_stride(surface); 74e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 75e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke MD5 md5Context; 76e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke unsigned char* bitmapData = static_cast<unsigned char*>(cairo_image_surface_get_data(surface)); 77e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke for (unsigned row = 0; row < pixelsHigh; row++) { 78e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke md5Context.addBytes(bitmapData, 4 * pixelsWide); 79e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke bitmapData += bytesPerRow; 80e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke } 81e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke Vector<uint8_t, 16> hash; 82e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke md5Context.checksum(hash); 83e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 84e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke snprintf(hashString, 33, "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", 85e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke hash[0], hash[1], hash[2], hash[3], hash[4], hash[5], hash[6], hash[7], 86e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke hash[8], hash[9], hash[10], hash[11], hash[12], hash[13], hash[14], hash[15]); 87e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke} 88e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke 892daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdochvoid dumpBitmap(BitmapContext* context, const char* checksum) 90e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke{ 91e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke cairo_surface_t* surface = cairo_get_target(context->cairoContext()); 922daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch printPNG(surface, checksum); 93e458d70a0d18538346f41b503114c9ebe6b2ce12Leon Clarke} 94