/*

 * Copyright (C) 2007 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 Computer, 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"

#if PLATFORM(CG)

#include "PixelDumpSupportCG.h"

#elif PLATFORM(CAIRO)

#include "PixelDumpSupportCairo.h"

#endif

#include "DumpRenderTree.h"

#if PLATFORM(CG)

// Note: Must be included *after* DumpRenderTree.h to avoid compile error.

#include <CoreGraphics/CGBitmapContext.h>

#endif

#include <wtf/Assertions.h>

#include <wtf/RetainPtr.h>

PassRefPtr<BitmapContext> createBitmapContextFromWebView(bool onscreen, bool incrementalRepaint, bool sweepHorizontally, bool drawSelectionRect)

{

    RECT frame;

    if (!GetWindowRect(webViewWindow, &frame))

        return 0;

    BITMAPINFO bmp = {0};

    bmp.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);

    bmp.bmiHeader.biWidth = frame.right - frame.left;

    bmp.bmiHeader.biHeight = -(frame.bottom - frame.top);

    bmp.bmiHeader.biPlanes = 1;

    bmp.bmiHeader.biBitCount = 32;

    bmp.bmiHeader.biCompression = BI_RGB;

    void* bits = 0;

    HBITMAP bitmap = CreateDIBSection(0, &bmp, DIB_RGB_COLORS, &bits, 0, 0);

    HDC memoryDC = CreateCompatibleDC(0);

    SelectObject(memoryDC, bitmap);

    SendMessage(webViewWindow, WM_PRINTCLIENT, reinterpret_cast<WPARAM>(memoryDC), PRF_CLIENT | PRF_CHILDREN | PRF_OWNED);

    DeleteDC(memoryDC);

    BITMAP info = {0};

    GetObject(bitmap, sizeof(info), &info);

    ASSERT(info.bmBitsPixel == 32);

#if PLATFORM(CG)

    RetainPtr<CGColorSpaceRef> colorSpace(AdoptCF, CGColorSpaceCreateDeviceRGB());

    CGContextRef context = CGBitmapContextCreate(info.bmBits, info.bmWidth, info.bmHeight, 8,

                                                info.bmWidthBytes, colorSpace.get(), kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedFirst);

#elif PLATFORM(CAIRO) 

    cairo_surface_t* image = cairo_image_surface_create_for_data((unsigned char*)info.bmBits, CAIRO_FORMAT_ARGB32, 

                                                      info.bmWidth, info.bmHeight, info.bmWidthBytes); 

    cairo_t* context = cairo_create(image); 

    cairo_surface_destroy(image); 

#endif 

   return BitmapContext::createByAdoptingBitmapAndContext(bitmap, context);

}