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ctgaloader.h

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#ifndef TGA_LOADER_CLASS_PROTECTION
#define TGA_LOADER_CLASS_PROTECTION

#include <windows.h>
#include "cimagedata.h"
#include <string>
using std::string;


#define HEADER_SIZE 18L


class CTGALoader {

#pragma pack(push)
#pragma pack(1)

        struct {
                BYTE cIDLength;
                BYTE cColorMapType;
                BYTE cImageType;
                //color map spec
                WORD ucFirstEntryIndex;
                WORD ucColorMapLength;
                BYTE cColorMapEntrySize;
                //image spec
                WORD ucXOrigin;
                WORD ucYOrigin;
                WORD ucImageWidth;
                WORD ucImageHeight;
                BYTE cPixelDepth;
                BYTE cImageDescriptor;
        } m_sTgaHeader;


        struct {
                char cFooter[26];
                char cSignature[17];
                DWORD udExtensionAreaOffset;
                DWORD udDeveloperDirectoryOffset;
                BYTE cAsciiChar;
                BYTE cStringTerminator;
        } m_sTgaFooter;

#pragma pack(pop)


        int m_GetHeader(char *filename);
        int m_GetFooter(char *filename);
        int m_ExtractImageData(char *filename, ImageData_t *psImage);

public:
        
        ImageData_t *LoadTgaImage(char *filename);
        bool SaveTgaImage(string path, ImageData_t *psImage);
};


#endif

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