1 /*
2 * Copyright (C) 2009 Apple, Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "config.h"
30 #include "DumpRenderTree.h"
31 #include "LayoutTestController.h"
32 #include "PixelDumpSupport.h"
33 #include <wtf/Assertions.h>
34 #include <wtf/RefPtr.h>
35 #include <wtf/RetainPtr.h>
36
37 #if PLATFORM(CG)
38 #include "PixelDumpSupportCG.h"
39 #elif PLATFORM(CAIRO)
40 #include "PixelDumpSupportCairo.h"
41 #endif
42
dumpWebViewAsPixelsAndCompareWithExpected(const std::string & expectedHash)43 void dumpWebViewAsPixelsAndCompareWithExpected(const std::string& expectedHash)
44 {
45 RefPtr<BitmapContext> context = createBitmapContextFromWebView(gLayoutTestController->testOnscreen(), gLayoutTestController->testRepaint(), gLayoutTestController->testRepaintSweepHorizontally(), gLayoutTestController->dumpSelectionRect());
46 ASSERT(context);
47
48 // Compute the hash of the bitmap context pixels
49 char actualHash[33];
50 computeMD5HashStringForBitmapContext(context.get(), actualHash);
51 printf("\nActualHash: %s\n", actualHash);
52
53 // Check the computed hash against the expected one and dump image on mismatch
54 bool dumpImage = true;
55 if (expectedHash.length() > 0) {
56 ASSERT(expectedHash.length() == 32);
57
58 printf("\nExpectedHash: %s\n", expectedHash.c_str());
59
60 if (expectedHash == actualHash) // FIXME: do case insensitive compare
61 dumpImage = false;
62 }
63
64 if (dumpImage)
65 dumpBitmap(context.get());
66 }
67
printPNG(const unsigned char * data,const size_t dataLength)68 void printPNG(const unsigned char* data, const size_t dataLength)
69 {
70 printf("Content-Type: %s\n", "image/png");
71 printf("Content-Length: %lu\n", static_cast<unsigned long>(dataLength));
72
73 const size_t bytesToWriteInOneChunk = 1 << 15;
74 size_t dataRemainingToWrite = dataLength;
75 while (dataRemainingToWrite) {
76 size_t bytesToWriteInThisChunk = std::min(dataRemainingToWrite, bytesToWriteInOneChunk);
77 size_t bytesWritten = fwrite(data, 1, bytesToWriteInThisChunk, stdout);
78 if (bytesWritten != bytesToWriteInThisChunk)
79 break;
80 dataRemainingToWrite -= bytesWritten;
81 data += bytesWritten;
82 }
83 }
84