Source code of Windows XP (NT5)
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#ifndef __1fe1d0e2_d009_4c25_a3bc_d0620c61ed8d__
#define __1fe1d0e2_d009_4c25_a3bc_d0620c61ed8d__
#include <windows.h>
#include "simstr.h"
#include <gdiplus.h>
#include "simarray.h"
//
// We will define this when explicit initialization is implemented correctly
//
#define GDIPLUSHELPER_EXPLICIT_INITIALIZATION
#if defined(GDIPLUSHELPER_EXPLICIT_INITIALIZATION)
#include <gdiplusinit.h>
#endif
class CGdiPlusHelper
{
private:
Gdiplus::ImageCodecInfo *m_pImageEncoderInfo;
UINT m_nImageEncoderCount;
Gdiplus::ImageCodecInfo *m_pImageDecoderInfo;
UINT m_nImageDecoderCount;
#if defined(GDIPLUSHELPER_EXPLICIT_INITIALIZATION)
//
// GDI+ Initialization stuff
//
ULONG_PTR m_pGdiplusToken;
bool m_bGdiplusInitialized;
#endif
private:
CGdiPlusHelper( const CGdiPlusHelper & );
CGdiPlusHelper &operator=( const CGdiPlusHelper & );
public:
CGdiPlusHelper(void);
~CGdiPlusHelper(void);
protected:
HRESULT Initialize(void);
static HRESULT ConstructCodecExtensionSearchStrings( CSimpleString &strExtensions, Gdiplus::ImageCodecInfo *pImageCodecInfo, UINT nImageCodecCount );
void Destroy(void);
public:
bool IsValid(void) const;
HRESULT ConstructDecoderExtensionSearchStrings( CSimpleString &strExtensions );
HRESULT ConstructEncoderExtensionSearchStrings( CSimpleString &strExtensions );
HRESULT GetClsidOfEncoder( const GUID &guidFormatId, CLSID &clsidFormat ) const;
HRESULT GetClsidOfDecoder( const GUID &guidFormatId, CLSID &clsidFormat ) const;
HRESULT Convert( LPCWSTR pszInputFilename, LPCWSTR pszOutputFilename, const CLSID &guidOutputFormat ) const;
HRESULT LoadAndScale( HBITMAP &hTargetBitmap, LPCTSTR pszFilename, UINT nMaxWidth, UINT nMaxHeight, bool bStretchSmallImages );
HRESULT SaveMultipleImagesAsMultiPage( const CSimpleDynamicArray<CSimpleStringWide> &Filenames, const CSimpleStringWide &strFilename, const CLSID &guidOutputFormat );
static Gdiplus::EncoderParameters *AppendEncoderParameter( Gdiplus::EncoderParameters *pEncoderParameters, const GUID &guidProp, ULONG nType, PVOID pVoid );
static inline GDISTATUS_TO_HRESULT(Gdiplus::Status status) { return (status == Gdiplus::Ok) ? S_OK : E_FAIL; }
};
class CImageFileFormatVerifier
{
private:
//
// Internal class used to store the file signatures
//
class CImageFileFormatVerifierItem
{
private:
PBYTE m_pSignature;
PBYTE m_pMask;
int m_nLength;
GUID m_guidFormat;
CLSID m_clsidDecoder;
public:
//
// Constructors, assignment operator and destructor
//
CImageFileFormatVerifierItem(void);
CImageFileFormatVerifierItem( const PBYTE pSignature, const PBYTE pMask, int nLength, const GUID &guidFormat, const CLSID &guidDecoder );
CImageFileFormatVerifierItem( const CImageFileFormatVerifierItem &other );
CImageFileFormatVerifierItem &operator=( const CImageFileFormatVerifierItem &other );
CImageFileFormatVerifierItem &Assign( const PBYTE pSignature, const PBYTE pMask, int nLength, const GUID &Format, const CLSID &guidDecoder );
~CImageFileFormatVerifierItem(void);
protected:
void Destroy(void);
public:
//
// Accessor functions
//
PBYTE Signature(void) const;
PBYTE Mask(void) const;
int Length(void) const;
GUID Format(void) const;
CLSID Decoder(void) const;
//
// Does this stream of bytes match this format?
//
bool Match( PBYTE pBytes, int nLen ) const;
};
private:
CSimpleDynamicArray<CImageFileFormatVerifierItem> m_FileFormatVerifierList;
int m_nMaxSignatureLength;
PBYTE m_pSignatureBuffer;
private:
CImageFileFormatVerifier( const CImageFileFormatVerifier & );
CImageFileFormatVerifier &operator=( const CImageFileFormatVerifier & );
public:
CImageFileFormatVerifier(void);
~CImageFileFormatVerifier(void);
void Destroy(void);
bool IsValid(void) const;
bool IsImageFile( LPCTSTR pszFilename );
GUID GetImageType( LPCTSTR pszFilename );
};
#endif