WebKitTools/DumpRenderTree/win/PixelDumpSupportWin.cpp

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