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include/cinder/msw/CinderMswGdiPlus.h

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00001 /*
00002  Copyright (c) 2010, The Barbarian Group
00003  All rights reserved.
00004 
00005  Redistribution and use in source and binary forms, with or without modification, are permitted provided that
00006  the following conditions are met:
00007 
00008     * Redistributions of source code must retain the above copyright notice, this list of conditions and
00009     the following disclaimer.
00010     * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
00011     the following disclaimer in the documentation and/or other materials provided with the distribution.
00012 
00013  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
00014  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
00015  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
00016  ANY DIRECT, INDIRECT, cinder::, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00017  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00018  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00019  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00020  POSSIBILITY OF SUCH DAMAGE.
00021 */
00022 
00023 #pragma once
00024 
00025 #include "cinder/Cinder.h"
00026 #include "cinder/Surface.h"
00027 #include <windows.h>
00028 #undef min
00029 #undef max
00030 
00031 // forward declarations
00032 namespace Gdiplus {
00033     class Bitmap;
00034     typedef INT PixelFormat;
00035 }
00036 
00037 namespace cinder { namespace msw {
00038 
00040 Surface8u convertGdiplusBitmap( Gdiplus::Bitmap &bitmap );
00041 
00043 Gdiplus::PixelFormat surfaceChannelOrderToGdiplusPixelFormat( const SurfaceChannelOrder &sco, bool premultiplied );
00044 
00046 void gdiplusPixelFormatToSurfaceChannelOrder( Gdiplus::PixelFormat format, SurfaceChannelOrder *resultChannelOrder, bool *resultPremultiplied );
00047 
00049 Gdiplus::Bitmap* createGdiplusBitmap( const Surface8u &surface );
00050 
00051 } } // namespace cinder::msw
00052 
00053 namespace cinder {
00054 
00055 class SurfaceConstraintsGdiPlus : public SurfaceConstraints {
00056     virtual SurfaceChannelOrder getChannelOrder( bool alpha ) const { return ( alpha ) ? SurfaceChannelOrder::BGRA : SurfaceChannelOrder::BGR; }
00057     virtual int32_t             getRowBytes( int requestedWidth, const SurfaceChannelOrder &sco, int elementSize ) const { int32_t result = requestedWidth * elementSize * sco.getPixelInc(); result += ( result & 3 ) ? ( 4 - (result&3) ) : 0; return result; }
00058 };
00059 
00060 } // namespace cinder