1 /*

     2  * Copyright (C) 2009 Apple Inc. All rights reserved.

     3  *           (C) 2009 Brent Fulgham <bfulgham@webkit.org>

     4  *

     5  * Redistribution and use in source and binary forms, with or without

     6  * modification, are permitted provided that the following conditions

     7  * are met:

     8  *

     9  * 1.  Redistributions of source code must retain the above copyright

    10  *     notice, this list of conditions and the following disclaimer.

    11  * 2.  Redistributions in binary form must reproduce the above copyright

    12  *     notice, this list of conditions and the following disclaimer in the

    13  *     documentation and/or other materials provided with the distribution.

    14  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

    15  *     its contributors may be used to endorse or promote products derived

    16  *     from this software without specific prior written permission.

    17  *

    18  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

    19  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

    20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

    21  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

    22  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

    23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

    24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

    25  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

    27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    28  */

    29 

    30 #ifndef PixelDumpSupportCairo_h

    31 #define PixelDumpSupportCairo_h

    32 

    33 #include <wtf/PassRefPtr.h>

    34 #include <wtf/RefCounted.h>

    35 

    36 #if PLATFORM(WIN)

    37 #include <windows.h>

    38 #include <cairo-win32.h>

    39 #elif PLATFORM(GTK)

    40 #include <cairo.h>

    41 #endif

    42 

    43 #if PLATFORM(WIN)

    44 typedef HBITMAP PlatformBitmapBuffer;

    45 #else

    46 typedef void* PlatformBitmapBuffer;

    47 #endif

    48 

    49 class BitmapContext : public RefCounted<BitmapContext> {

    50 public:

    51     static PassRefPtr<BitmapContext> createByAdoptingBitmapAndContext(PlatformBitmapBuffer buffer, cairo_t* context)

    52     {

    53         return adoptRef(new BitmapContext(buffer, context));

    54     }

    55 

    56     ~BitmapContext()

    57     {

    58         if (m_buffer)

    59 #if PLATFORM(WIN)

    60             DeleteObject(m_buffer);

    61 #else

    62             free(m_buffer);

    63 #endif

    64         cairo_destroy(m_context);

    65     }

    66 

    67     cairo_t* cairoContext() const { return m_context; }

    68 

    69 private:

    70 

    71     BitmapContext(PlatformBitmapBuffer buffer, cairo_t* context)

    72         : m_buffer(buffer)

    73         , m_context(context)

    74     {

    75     }

    76 

    77     PlatformBitmapBuffer m_buffer;

    78     cairo_t* m_context;

    79 };

    80 

    81 #endif // PixelDumpSupportCairo_h