141 lines
5.5 KiB
C++
141 lines
5.5 KiB
C++
/*
|
|
* Copyright (C) 2009 Apple, Inc. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
|
|
* its contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include "PixelDumpSupport.h"
|
|
|
|
#include "CyclicRedundancyCheck.h"
|
|
#include "DumpRenderTree.h"
|
|
#include "TestRunner.h"
|
|
#include <cstdio>
|
|
#include <wtf/Assertions.h>
|
|
#include <wtf/RefPtr.h>
|
|
#include <wtf/Vector.h>
|
|
|
|
#if USE(CG)
|
|
#include "PixelDumpSupportCG.h"
|
|
#elif USE(CAIRO)
|
|
#include "PixelDumpSupportCairo.h"
|
|
#elif PLATFORM(HAIKU)
|
|
#include "PixelDumpSupportHaiku.h"
|
|
#elif USE(DIRECT2D)
|
|
#include "PixelDumpSupportDirect2D.h"
|
|
#endif
|
|
|
|
void dumpWebViewAsPixelsAndCompareWithExpected(const std::string& expectedHash)
|
|
{
|
|
RefPtr<BitmapContext> context;
|
|
#if PLATFORM(MAC)
|
|
if (gTestRunner->isPrinting())
|
|
context = createPagedBitmapContext();
|
|
else
|
|
#endif
|
|
context = createBitmapContextFromWebView(gTestRunner->testOnscreen(), gTestRunner->testRepaint(), gTestRunner->testRepaintSweepHorizontally(), gTestRunner->dumpSelectionRect());
|
|
ASSERT(context);
|
|
|
|
// Compute the hash of the bitmap context pixels
|
|
char actualHash[33];
|
|
computeSHA1HashStringForBitmapContext(context.get(), actualHash);
|
|
fprintf(testResult, "\nActualHash: %s\n", actualHash); // FIXME: No need for the leading newline.
|
|
|
|
// Check the computed hash against the expected one and dump image on mismatch
|
|
bool dumpImage = true;
|
|
if (expectedHash.length() > 0) {
|
|
ASSERT(expectedHash.length() == 32);
|
|
|
|
fprintf(testResult, "\nExpectedHash: %s\n", expectedHash.c_str()); // FIXME: No need for the leading newline.
|
|
|
|
if (expectedHash == actualHash) // FIXME: do case insensitive compare
|
|
dumpImage = false;
|
|
}
|
|
|
|
if (dumpImage)
|
|
dumpBitmap(context.get(), actualHash);
|
|
}
|
|
|
|
static void appendIntToVector(unsigned number, Vector<unsigned char>& vector)
|
|
{
|
|
size_t offset = vector.size();
|
|
vector.grow(offset + 4);
|
|
vector[offset] = ((number >> 24) & 0xff);
|
|
vector[offset + 1] = ((number >> 16) & 0xff);
|
|
vector[offset + 2] = ((number >> 8) & 0xff);
|
|
vector[offset + 3] = (number & 0xff);
|
|
}
|
|
|
|
static void convertChecksumToPNGComment(const char* checksum, Vector<unsigned char>& bytesToAdd)
|
|
{
|
|
// Chunks of PNG files are <length>, <type>, <data>, <crc>.
|
|
static const char textCommentPrefix[] = "\x00\x00\x00\x29tEXtchecksum\x00";
|
|
static const size_t prefixLength = sizeof(textCommentPrefix) - 1; // The -1 is for the null at the end of the char[].
|
|
static const size_t checksumLength = 32;
|
|
|
|
bytesToAdd.append(textCommentPrefix, prefixLength);
|
|
bytesToAdd.append(checksum, checksumLength);
|
|
|
|
Vector<unsigned char> dataToCrc;
|
|
dataToCrc.append(textCommentPrefix + 4, prefixLength - 4); // Don't include the chunk length in the crc.
|
|
dataToCrc.append(checksum, checksumLength);
|
|
unsigned crc32 = computeCrc(dataToCrc);
|
|
|
|
appendIntToVector(crc32, bytesToAdd);
|
|
}
|
|
|
|
static size_t offsetAfterIHDRChunk(const unsigned char* data, const size_t dataLength)
|
|
{
|
|
const int pngHeaderLength = 8;
|
|
const int pngIHDRChunkLength = 25; // chunk length + "IHDR" + 13 bytes of data + checksum
|
|
return pngHeaderLength + pngIHDRChunkLength;
|
|
}
|
|
|
|
void printPNG(const unsigned char* data, const size_t dataLength, const char* checksum)
|
|
{
|
|
Vector<unsigned char> bytesToAdd;
|
|
convertChecksumToPNGComment(checksum, bytesToAdd);
|
|
|
|
fprintf(testResult, "Content-Type: image/png\n");
|
|
fprintf(testResult, "Content-Length: %lu\n", static_cast<unsigned long>(dataLength + bytesToAdd.size()));
|
|
|
|
size_t insertOffset = offsetAfterIHDRChunk(data, dataLength);
|
|
|
|
fwrite(data, 1, insertOffset, testResult);
|
|
fwrite(bytesToAdd.data(), 1, bytesToAdd.size(), testResult);
|
|
|
|
const size_t bytesToWriteInOneChunk = 1 << 15;
|
|
data += insertOffset;
|
|
size_t dataRemainingToWrite = dataLength - insertOffset;
|
|
while (dataRemainingToWrite) {
|
|
size_t bytesToWriteInThisChunk = std::min(dataRemainingToWrite, bytesToWriteInOneChunk);
|
|
size_t bytesWritten = fwrite(data, 1, bytesToWriteInThisChunk, testResult);
|
|
if (bytesWritten != bytesToWriteInThisChunk)
|
|
break;
|
|
dataRemainingToWrite -= bytesWritten;
|
|
data += bytesWritten;
|
|
}
|
|
}
|