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
31#if USE(CG)
32#include "PixelDumpSupportCG.h"
33#elif USE(CAIRO)
34#include "PixelDumpSupportCairo.h"
35#endif
36
37#include "DumpRenderTree.h"
38
39#if USE(CG)
40// Note: Must be included *after* DumpRenderTree.h to avoid compile error.
41#include <CoreGraphics/CGBitmapContext.h>
42#endif
43
44#include <wtf/Assertions.h>
45#include <wtf/RetainPtr.h>
46
47PassRefPtr<BitmapContext> createBitmapContextFromWebView(bool onscreen, bool incrementalRepaint, bool sweepHorizontally, bool drawSelectionRect)
48{
49    RECT frame;
50    if (!GetWindowRect(webViewWindow, &frame))
51        return 0;
52
53    BITMAPINFO bmp = {0};
54    bmp.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
55    bmp.bmiHeader.biWidth = frame.right - frame.left;
56    bmp.bmiHeader.biHeight = -(frame.bottom - frame.top);
57    bmp.bmiHeader.biPlanes = 1;
58    bmp.bmiHeader.biBitCount = 32;
59    bmp.bmiHeader.biCompression = BI_RGB;
60
61    void* bits = 0;
62    HBITMAP bitmap = CreateDIBSection(0, &bmp, DIB_RGB_COLORS, &bits, 0, 0);
63
64    HDC memoryDC = CreateCompatibleDC(0);
65    SelectObject(memoryDC, bitmap);
66    SendMessage(webViewWindow, WM_PRINT, reinterpret_cast<WPARAM>(memoryDC), PRF_CLIENT | PRF_CHILDREN | PRF_OWNED);
67    DeleteDC(memoryDC);
68
69    BITMAP info = {0};
70    GetObject(bitmap, sizeof(info), &info);
71    ASSERT(info.bmBitsPixel == 32);
72
73#if USE(CG)
74    RetainPtr<CGColorSpaceRef> colorSpace(AdoptCF, CGColorSpaceCreateDeviceRGB());
75    CGContextRef context = CGBitmapContextCreate(info.bmBits, info.bmWidth, info.bmHeight, 8,
76                                                info.bmWidthBytes, colorSpace.get(), kCGBitmapByteOrder32Host | kCGImageAlphaPremultipliedFirst);
77#elif USE(CAIRO)
78    cairo_surface_t* image = cairo_image_surface_create_for_data((unsigned char*)info.bmBits, CAIRO_FORMAT_ARGB32,
79                                                      info.bmWidth, info.bmHeight, info.bmWidthBytes);
80    cairo_t* context = cairo_create(image);
81    cairo_surface_destroy(image);
82#endif
83
84   return BitmapContext::createByAdoptingBitmapAndContext(bitmap, context);
85}
86