1 /*
2 * Copyright (C) 2007 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 "PixelDumpSupportCG.h"
31
32 #include "DumpRenderTree.h"
33 #include <CoreGraphics/CGBitmapContext.h>
34 #include <wtf/Assertions.h>
35 #include <wtf/RetainPtr.h>
36
getBitmapContextFromWebView(bool onscreen,bool incrementalRepaint,bool sweepHorizontally,bool drawSelectionRect)37 PassRefPtr<BitmapContext> getBitmapContextFromWebView(bool onscreen, bool incrementalRepaint, bool sweepHorizontally, bool drawSelectionRect)
38 {
39 RECT frame;
40 if (!GetWindowRect(webViewWindow, &frame))
41 return 0;
42
43 BITMAPINFO bmp = {0};
44 bmp.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
45 bmp.bmiHeader.biWidth = frame.right - frame.left;
46 bmp.bmiHeader.biHeight = -(frame.bottom - frame.top);
47 bmp.bmiHeader.biPlanes = 1;
48 bmp.bmiHeader.biBitCount = 32;
49 bmp.bmiHeader.biCompression = BI_RGB;
50
51 void* bits = 0;
52 HBITMAP bitmap = CreateDIBSection(0, &bmp, DIB_RGB_COLORS, &bits, 0, 0);
53
54 HDC memoryDC = CreateCompatibleDC(0);
55 SelectObject(memoryDC, bitmap);
56 SendMessage(webViewWindow, WM_PRINTCLIENT, reinterpret_cast<WPARAM>(memoryDC), PRF_CLIENT | PRF_CHILDREN | PRF_OWNED);
57 DeleteDC(memoryDC);
58
59 BITMAP info = {0};
60 GetObject(bitmap, sizeof(info), &info);
61 ASSERT(info.bmBitsPixel == 32);
62
63 RetainPtr<CGColorSpaceRef> colorSpace(AdoptCF, CGColorSpaceCreateDeviceRGB());
64 CGContextRef context = CGBitmapContextCreate(info.bmBits, info.bmWidth, info.bmHeight, 8,
65 info.bmWidthBytes, colorSpace.get(), kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedFirst);
66
67 return BitmapContext::createByAdoptingBitmapAndContext(bitmap, context);
68 }
69