133 lines
4.1 KiB
C
133 lines
4.1 KiB
C
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#ifndef __1fe1d0e2_d009_4c25_a3bc_d0620c61ed8d__
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#define __1fe1d0e2_d009_4c25_a3bc_d0620c61ed8d__
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#include <windows.h>
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#include "simstr.h"
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#include <gdiplus.h>
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#include "simarray.h"
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//
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// We will define this when explicit initialization is implemented correctly
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//
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#define GDIPLUSHELPER_EXPLICIT_INITIALIZATION
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#if defined(GDIPLUSHELPER_EXPLICIT_INITIALIZATION)
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#include <gdiplusinit.h>
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#endif
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class CGdiPlusHelper
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{
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private:
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Gdiplus::ImageCodecInfo *m_pImageEncoderInfo;
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UINT m_nImageEncoderCount;
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Gdiplus::ImageCodecInfo *m_pImageDecoderInfo;
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UINT m_nImageDecoderCount;
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#if defined(GDIPLUSHELPER_EXPLICIT_INITIALIZATION)
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//
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// GDI+ Initialization stuff
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//
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ULONG_PTR m_pGdiplusToken;
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bool m_bGdiplusInitialized;
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#endif
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private:
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CGdiPlusHelper( const CGdiPlusHelper & );
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CGdiPlusHelper &operator=( const CGdiPlusHelper & );
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public:
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CGdiPlusHelper(void);
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~CGdiPlusHelper(void);
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protected:
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HRESULT Initialize(void);
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static HRESULT ConstructCodecExtensionSearchStrings( CSimpleString &strExtensions, Gdiplus::ImageCodecInfo *pImageCodecInfo, UINT nImageCodecCount );
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void Destroy(void);
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public:
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bool IsValid(void) const;
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HRESULT ConstructDecoderExtensionSearchStrings( CSimpleString &strExtensions );
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HRESULT ConstructEncoderExtensionSearchStrings( CSimpleString &strExtensions );
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HRESULT GetClsidOfEncoder( const GUID &guidFormatId, CLSID &clsidFormat ) const;
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HRESULT GetClsidOfDecoder( const GUID &guidFormatId, CLSID &clsidFormat ) const;
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HRESULT Convert( LPCWSTR pszInputFilename, LPCWSTR pszOutputFilename, const CLSID &guidOutputFormat ) const;
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HRESULT LoadAndScale( HBITMAP &hTargetBitmap, LPCTSTR pszFilename, UINT nMaxWidth, UINT nMaxHeight, bool bStretchSmallImages );
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HRESULT SaveMultipleImagesAsMultiPage( const CSimpleDynamicArray<CSimpleStringWide> &Filenames, const CSimpleStringWide &strFilename, const CLSID &guidOutputFormat );
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static Gdiplus::EncoderParameters *AppendEncoderParameter( Gdiplus::EncoderParameters *pEncoderParameters, const GUID &guidProp, ULONG nType, PVOID pVoid );
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static inline GDISTATUS_TO_HRESULT(Gdiplus::Status status) { return (status == Gdiplus::Ok) ? S_OK : E_FAIL; }
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};
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class CImageFileFormatVerifier
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{
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private:
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//
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// Internal class used to store the file signatures
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//
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class CImageFileFormatVerifierItem
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{
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private:
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PBYTE m_pSignature;
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PBYTE m_pMask;
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int m_nLength;
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GUID m_guidFormat;
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CLSID m_clsidDecoder;
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public:
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//
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// Constructors, assignment operator and destructor
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//
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CImageFileFormatVerifierItem(void);
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CImageFileFormatVerifierItem( const PBYTE pSignature, const PBYTE pMask, int nLength, const GUID &guidFormat, const CLSID &guidDecoder );
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CImageFileFormatVerifierItem( const CImageFileFormatVerifierItem &other );
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CImageFileFormatVerifierItem &operator=( const CImageFileFormatVerifierItem &other );
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CImageFileFormatVerifierItem &Assign( const PBYTE pSignature, const PBYTE pMask, int nLength, const GUID &Format, const CLSID &guidDecoder );
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~CImageFileFormatVerifierItem(void);
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protected:
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void Destroy(void);
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public:
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//
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// Accessor functions
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//
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PBYTE Signature(void) const;
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PBYTE Mask(void) const;
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int Length(void) const;
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GUID Format(void) const;
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CLSID Decoder(void) const;
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//
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// Does this stream of bytes match this format?
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//
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bool Match( PBYTE pBytes, int nLen ) const;
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};
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private:
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CSimpleDynamicArray<CImageFileFormatVerifierItem> m_FileFormatVerifierList;
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int m_nMaxSignatureLength;
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PBYTE m_pSignatureBuffer;
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private:
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CImageFileFormatVerifier( const CImageFileFormatVerifier & );
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CImageFileFormatVerifier &operator=( const CImageFileFormatVerifier & );
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public:
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CImageFileFormatVerifier(void);
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~CImageFileFormatVerifier(void);
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void Destroy(void);
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bool IsValid(void) const;
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bool IsImageFile( LPCTSTR pszFilename );
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GUID GetImageType( LPCTSTR pszFilename );
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};
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#endif
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