rainmeter-studio/Common/Gfx/Util/WICBitmapLockDIB.h

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/*
Copyright (C) 2013 Birunthan Mohanathas
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
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#ifndef RM_GFX_UTIL_WICBITMAPLOCKDIB_H_
#define RM_GFX_UTIL_WICBITMAPLOCKDIB_H_
#include <Windows.h>
#include <GdiPlus.h>
#include <wincodec.h>
#include "WICBitmapDIB.h"
namespace Gfx {
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namespace Util {
// Implements the IWICBitmapLock interface for use with WICBitmapDIB. It is assumed that this
// class is used only with 32bpp PARGB bitmaps and using a sigle thread.
class WICBitmapLockDIB : public IWICBitmapLock
{
public:
WICBitmapLockDIB(WICBitmapDIB* bitmap, const WICRect* lockRect);
virtual ~WICBitmapLockDIB();
void Resize(UINT w, UINT h);
// IUnknown
IFACEMETHOD(QueryInterface)(REFIID riid, void** ppvObject);
IFACEMETHOD_(ULONG, AddRef)();
IFACEMETHOD_(ULONG, Release)();
// IWICBitmapLock
IFACEMETHOD(GetSize)(UINT* puiWidth, UINT* puiHeight);
IFACEMETHOD(GetStride)(UINT* pcbStride);
IFACEMETHOD(GetDataPointer)(UINT* pcbBufferSize, BYTE** ppbData);
IFACEMETHOD(GetPixelFormat)(WICPixelFormatGUID* pPixelFormat);
private:
WICBitmapDIB* m_Bitmap;
const WICRect* m_Rect;
UINT m_RefCount;
};
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} // namespace Util
} // namespace Gfx
#endif