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 #endif 40 41 #if PLATFORM(WIN) 42 typedef HBITMAP PlatformBitmapBuffer; 43 #else 44 typedef void* PlatformBitmapBuffer; 45 #endif 46 47 class BitmapContext : public RefCounted<BitmapContext> { 48 public: createByAdoptingBitmapAndContext(PlatformBitmapBuffer buffer,cairo_t * context)49 static PassRefPtr<BitmapContext> createByAdoptingBitmapAndContext(PlatformBitmapBuffer buffer, cairo_t* context) 50 { 51 return adoptRef(new BitmapContext(buffer, context)); 52 } 53 ~BitmapContext()54 ~BitmapContext() 55 { 56 if (m_buffer) 57 #if PLATFORM(WIN) 58 DeleteObject(m_buffer); 59 #else 60 free(m_buffer); 61 #endif 62 cairo_destroy(m_context); 63 } 64 cairoContext()65 cairo_t* cairoContext() const { return m_context; } 66 67 private: 68 BitmapContext(PlatformBitmapBuffer buffer,cairo_t * context)69 BitmapContext(PlatformBitmapBuffer buffer, cairo_t* context) 70 : m_buffer(buffer) 71 { 72 if (m_context) 73 cairo_destroy(m_context); 74 75 m_context = context; 76 } 77 78 PlatformBitmapBuffer m_buffer; 79 cairo_t* m_context; 80 81 }; 82 83 #endif // PixelDumpSupportCairo_h 84