/*H********************************************************************************/
/*!
    \File imageconv.c

    \Description
        Test DirtyGraph image conversion routines.

    \Copyright
        Copyright (c) 2006 Electronic Arts Inc.

    \Version 02/23/2006 (jbrookes) First Version
*/
/********************************************************************************H*/

/*** Include files ****************************************************************/

#include <windows.h>

#include <string.h>

#include "DirtySDK/platform.h"
#include "DirtySDK/graph/dirtygraph.h"
#include "DirtySDK/graph/dirtygif.h"
#include "DirtySDK/graph/dirtyjpg.h"
#include "DirtySDK/graph/dirtypng.h"

#include "libsample/zfile.h"
#include "libsample/zlib.h"
#include "libsample/zmem.h"

#include "testermodules.h"

#define RUNLIBJPEG  (FALSE)

#if RUNLIBJPEG
extern BITMAPINFO *jpeg_read_dibitmap(char *fname, char *errbuf, long errlen, long *cmpsize);
#endif

/*** Defines **********************************************************************/

/*** Type Definitions *************************************************************/

/*** Function Prototypes **********************************************************/

/*** Variables ********************************************************************/

static DirtyGraphRefT *pDirtyGraph;

/*** Private Functions ************************************************************/


/*F********************************************************************************/
/*!
    \Function _CmdImgConvParseHeader

    \Description
        Read input image and parse it

    \Input *pInputFile  - input file data
    \Input uInputSize   - size of input file data
    \Input *pImageInfo  - [out] storage for image info
    
    \Output
        DirtyGraphInfoT * - pointer to parsed image info, or NULL

    \Version 01/17/2020 (jbrookes) Split from _CmdImgConvDecodeImage
*/
/********************************************************************************F*/
static DirtyGraphInfoT *_CmdImgConvParseHeader(const uint8_t *pInputFile, uint32_t uInputSize, DirtyGraphInfoT *pImageInfo)
{
    int32_t iError;
    const char* _strImageTypes[] = { "unknown", "gif", "jpg", "png" };

    // create module state
    if (pDirtyGraph == NULL)
    {
        pDirtyGraph = DirtyGraphCreate();
    }

    // parse the image header
    if ((iError = DirtyGraphDecodeHeader(pDirtyGraph, pImageInfo, pInputFile, uInputSize)) < 0)
    {
        ZPrintf("imgconv: error %d trying to parse image\n", iError);
        DirtyGraphDestroy(pDirtyGraph);
        pDirtyGraph = NULL;
        return(NULL);
    }

    // identify image type
    ZPrintf("imgconv: parsed %s image\n", _strImageTypes[pImageInfo->uType]);
    return(pImageInfo);
}   
    
/*F********************************************************************************/
/*!
    \Function _CmdImgConvDecodeImage

    \Description
        Read input image, and decode it to a 32bit ARGB file using DirtyGraph

    \Input *pInputFile  - input file data
    \Input uInputSize   - size of input file data
    \Input pImageInfo   - image info
    \Input bMultiImage  - multi-image decoding enabled
    
    \Output
        uint8_t *       - pointer to output 32bit ARGB image, or NULL

    \Version 02/23/2006 (jbrookes)
*/
/********************************************************************************F*/
static uint8_t *_CmdImgConvDecodeImage(const uint8_t *pInputFile, uint32_t uInputSize, DirtyGraphInfoT *pImageInfo, uint8_t bMultiImage)
{
    uint8_t *p32Bit;
    int32_t iError, iNumFrames = bMultiImage ? pImageInfo->uNumFrames : 1;
    
    // allocate space for 32bit raw image
    if ((p32Bit = ZMemAlloc(pImageInfo->uNumFrames*pImageInfo->iWidth*pImageInfo->iHeight*4)) == NULL)
    {
        ZPrintf("imgconv: could not allocate memory for decoded image\n");
        DirtyGraphDestroy(pDirtyGraph);
        pDirtyGraph = NULL;
        return(NULL);
    }
    
    // decode the image
    if (iNumFrames == 1)
    {
        if ((iError = DirtyGraphDecodeImage(pDirtyGraph, pImageInfo, p32Bit, pImageInfo->iWidth, pImageInfo->iHeight)) < 0)
        {
            ZPrintf("imgconv: error %d trying to decode image\n", iError);
            DirtyGraphDestroy(pDirtyGraph);
            pDirtyGraph = NULL;
            ZMemFree(p32Bit);
            return(NULL);
        }
    }
    else
    {
        // get animation info
        int32_t *pAnimInfo = ZMemAlloc(pImageInfo->uNumFrames*sizeof(int32_t));
        int32_t iFrame, iFrames = DirtyGraphGetImageInfo(pDirtyGraph, pImageInfo, 'anim', pAnimInfo, pImageInfo->uNumFrames*sizeof(int32_t));
        ZPrintf("imgconv: %d frames with animation delays of ");
        for (iFrame = 0; iFrame < iFrames; iFrame += 1)
        {
            ZPrintf("%d,", pAnimInfo[iFrame]);
        }
        ZPrintf("\n");
        ZMemFree(pAnimInfo);
        
        // decode the multiframe inmage
        if ((iError = DirtyGraphDecodeImageMulti(pDirtyGraph, pImageInfo, p32Bit, pImageInfo->iWidth, pImageInfo->iHeight)) < 0)
        {
            ZPrintf("imgconv: error %d trying to decode image\n", iError);
            DirtyGraphDestroy(pDirtyGraph);
            pDirtyGraph = NULL;
            ZMemFree(p32Bit);
            return(NULL);
        }

    }

    // return 32bit image buffer
    return(p32Bit);
}

/*F********************************************************************************/
/*!
    \Function _CmdImgConvSwizzleLineBMP

    \Description
        Swizzle scanline in place.

    \Input *pScan       - scanline to swizzled
    \Input iWidth       - width of scanline
    
    \Output
        None

    \Version 03/07/2007 (jbrookes)
*/
/********************************************************************************F*/
static void _CmdImgConvSwizzleLineBMP(uint8_t *pScan, int32_t iWidth)
{
    int32_t iCurW;
    uint8_t uTmp;

    // do the swap and swizzle in one pass
    for (iCurW = 0; iCurW < iWidth; iCurW += 1, pScan += 4)
    {
        // swap a and b
        uTmp = pScan[0];            // save a
        pScan[0] = pScan[3];        // b->a
        pScan[3] = uTmp;            // a->b

        // swap r and g
        uTmp = pScan[1];            // save r
        pScan[1] = pScan[2];        // g->r
        pScan[2] = uTmp;            // r->g
    }
}

/*F********************************************************************************/
/*!
    \Function _CmdImgConvSwapAndSwizzleLineBMP

    \Description
        Swap scanlines pointed to by pScanLo and pScanHi and swizzle in-place.

    \Input *pScanLo     - lo scanline to swap&swizzle
    \Input *pScanHi     - hi scanline to swap&swizzle
    \Input iWidth       - width of scanline
    
    \Output
        None

    \Version 03/07/2007 (jbrookes)
*/
/********************************************************************************F*/
static void _CmdImgConvSwapAndSwizzleLineBMP(uint8_t *pScanLo, uint8_t *pScanHi, int32_t iWidth)
{
    int32_t iCurW;
    uint8_t uTmp;

    // do the swap and swizzle in one pass
    for (iCurW = 0; iCurW < iWidth; iCurW += 1, pScanLo += 4, pScanHi += 4)
    {
        // swap a(hi) and b(lo)
        uTmp = pScanHi[0];          // save a(hi)
        pScanHi[0] = pScanLo[3];    // b(lo)->a(hi)
        pScanLo[3] = uTmp;          // a(hi)->b(lo)

        // swap b(hi) and a(lo)
        uTmp = pScanHi[3];          // save b(hi)
        pScanHi[3] = pScanLo[0];    // a(lo)->b(hi)
        pScanLo[0] = uTmp;          // b(hi)->a(lo)

        // swap r(hi) and g(lo)
        uTmp = pScanHi[1];          // save r(hi)
        pScanHi[1] = pScanLo[2];    // g(lo)->r(hi)
        pScanLo[2] = uTmp;          // r(hi)->g(lo)

        // swap g(hi) and r(lo)
        uTmp = pScanHi[2];          // save g(hi)
        pScanHi[2] = pScanLo[1];    // r(lo)->g(hi)
        pScanLo[1] = uTmp;          // g(hi)->r(lo)
    }
}

/*F********************************************************************************/
/*!
    \Function _CmdImgConvSaveBMP

    \Description
        Save input 32bit ARGB image as a 32bit BMP file

    \Input *pFilename   - filename of file to save
    \Input *pImageData  - input image data
    \Input iWidth       - width of input image
    \Input iHeight      - height of input image
    
    \Output
        int32_t         - ZFileClose() result

    \Version 02/23/2006 (jbrookes)
*/
/********************************************************************************F*/
static int32_t _CmdImgConvSaveBMP(const char *pFileName, const uint8_t *pImageData, int32_t iWidth, int32_t iHeight)
{
    BITMAPFILEHEADER BitmapFileHeader;
    BITMAPINFOHEADER BitmapInfoHeader;
    uint8_t *pScanHi, *pScanLo, *pBMPData;
    ZFileT iFileId;
    int32_t iCurH;

    // open the file for writing
    if ((iFileId = ZFileOpen(pFileName, ZFILE_OPENFLAG_WRONLY|ZFILE_OPENFLAG_CREATE|ZFILE_OPENFLAG_BINARY)) < 0)
    {
        return(-1);
    }

    // make a temp copy for conversion to bmp format
    if ((pBMPData = ZMemAlloc(iWidth*iHeight*4)) == NULL)
    {
        return(-2);
    }
    memcpy(pBMPData, pImageData, iWidth*iHeight*4);

    // vflip image and convert from ARGB to BGRA in one pass
    for (iCurH = 0; iCurH < (iHeight/2); iCurH++)
    {
        // ref scanlines to swap and swizzle
        pScanLo = pBMPData + (iCurH*iWidth*4);
        pScanHi = pBMPData + ((iHeight-iCurH-1)*iWidth*4);

        // do the swap and swizzle
        _CmdImgConvSwapAndSwizzleLineBMP(pScanLo, pScanHi, iWidth);
    }
    // if height is odd, swizzle the center scanline
    if (iHeight & 1)
    {
        // ref scanlines to swap and swizzle
        pScanLo = pBMPData + (iCurH*iWidth*4);

        // do the swap and swizzle
        _CmdImgConvSwizzleLineBMP(pScanLo, iWidth);
    }

    // format bitmap header
    ds_memclr(&BitmapFileHeader, sizeof(BitmapFileHeader));
    BitmapFileHeader.bfType = 'MB';
    BitmapFileHeader.bfSize = sizeof(BitmapFileHeader)+sizeof(BitmapInfoHeader)+(iWidth*iHeight*4);
    BitmapFileHeader.bfOffBits = sizeof(BitmapFileHeader)+sizeof(BitmapInfoHeader);
   
    // write fileheader to output file
    if (ZFileWrite(iFileId, &BitmapFileHeader, sizeof(BitmapFileHeader)) < 0)
    {
        ZFileClose(iFileId);
        return(-1);
    }
   
    // format bitmapinfo header
    ds_memclr(&BitmapInfoHeader, sizeof(BitmapInfoHeader));
    BitmapInfoHeader.biSize = sizeof(BITMAPINFOHEADER);
    BitmapInfoHeader.biWidth = iWidth;
    BitmapInfoHeader.biHeight = iHeight;
    BitmapInfoHeader.biPlanes = 1;
    BitmapInfoHeader.biBitCount = 32;
    BitmapInfoHeader.biCompression = BI_RGB;
    BitmapInfoHeader.biSizeImage = iWidth*iHeight*4;
    BitmapInfoHeader.biXPelsPerMeter = 0;
    BitmapInfoHeader.biYPelsPerMeter = 0;
    BitmapInfoHeader.biClrUsed = 0;
    BitmapInfoHeader.biClrImportant = 0;
    
    // write infoheader to output file
    if (ZFileWrite(iFileId, &BitmapInfoHeader, sizeof(BitmapInfoHeader)) < 0)
    {
        ZFileClose(iFileId);
        return(-1);
    }
    
    // write pixel data to output file
    if (ZFileWrite(iFileId, pBMPData, iWidth*iHeight*4) < 0)
    {
        ZFileClose(iFileId);
        return(-1);
    }

    // free pixel data buffer
    ZMemFree(pBMPData);

    // close the file
    return(ZFileClose(iFileId));    
}

/*F********************************************************************************/
/*!
    \Function _CmdImgConvSaveRAW

    \Description
        Save input 32bit ARGB image as a 24bit RAW image.

    \Input *pFilename   - filename of file to save
    \Input *pImageData  - input image data
    \Input iWidth       - width of input image
    \Input iHeight      - height of input image
    
    \Output
        int32_t         - ZFileSave() result

    \Version 02/23/2006 (jbrookes)
*/
/********************************************************************************F*/
static int32_t _CmdImgConvSaveRAW(const char *pFileName, uint8_t *pImageData, int32_t iWidth, int32_t iHeight)
{
    uint8_t *pSrc, *pDst;
    int32_t iW, iH;
    
    // convert 32bit ARGB image to 24bit RGB image (inline)
    for (pSrc=pImageData, pDst=pImageData, iH=0; iH < iHeight; iH++)
    {
        for (iW = 0; iW < iWidth; iW++)
        {
            pDst[0] = pSrc[1];
            pDst[1] = pSrc[2];
            pDst[2] = pSrc[3];
            pSrc += 4;
            pDst += 3;
        }
    }

    // write the file
    return(ZFileSave(pFileName, (const char *)pImageData, iWidth*iHeight*3, ZFILE_OPENFLAG_WRONLY|ZFILE_OPENFLAG_CREATE|ZFILE_OPENFLAG_BINARY));
}

/*F********************************************************************************/
/*!
    \Function _CmdImgConvDecodeAndSave

    \Description
        Decode input to 32bit ARGB and save as raw or bmp.

    \Input *pFilename   - filename of file to save
    \Input *pInputFile  - input file
    \Input iInputSize   - input file size
    \Input *pImageInfo  - image info
    
    \Output
        int32_t         - ZFileSave() result

    \Version 01/17/2020 (jbrookes) Split from CmdImgConv()
*/
/********************************************************************************F*/
static int32_t _CmdImgConvDecodeAndSave(const char *pFileName, uint8_t *pInputFile, int32_t iInputSize, DirtyGraphInfoT *pImageInfo)
{
    uint8_t *p32BitImage;
    int32_t iResult;

    // convert to 32bit raw image
    if ((p32BitImage = _CmdImgConvDecodeImage(pInputFile, iInputSize, pImageInfo, FALSE)) == NULL)
    {
        return(0);
    }

    // save output image based on type
    if (ds_stristr(pFileName, ".raw"))
    {
        iResult = _CmdImgConvSaveRAW(pFileName, p32BitImage, pImageInfo->iWidth, pImageInfo->iHeight);
    }
    else if (ds_stristr(pFileName, ".bmp"))
    {
        iResult = _CmdImgConvSaveBMP(pFileName, p32BitImage, pImageInfo->iWidth, pImageInfo->iHeight);
    }
    else
    {
        ZPrintf("imgconv: output filetype unrecognized\n");
        iResult = -1;
    }

    // success?
    if (iResult >= 0)
    {
        ZPrintf("imgconv: saved output image %s\n", pFileName);
    }
    else
    {
        ZPrintf("imgconv: error writing output file '%s'\n", pFileName);
    }

    // dispose of buffer and return result to caller
    ZMemFree(p32BitImage);
    return(iResult);
}

/*F********************************************************************************/
/*!
    \Function _CmdImgConvDecodeAndSaveMulti

    \Description
        Decode input multi-frame file to 32bit ARGB and save as raw or bmp files.
        A numerical extension is appended to differentiate the frames.  Uses
        DirtyGraphDecodeImage32Multi()

    \Input *pFilename   - filename of file to save
    \Input *pInputFile  - input file
    \Input iInputSize   - input file size
    \Input *pImageInfo  - image info
    
    \Output
        int32_t         - ZFileSave() result

    \Version 01/17/2020 (jbrookes) Split from CmdImgConv()
*/
/********************************************************************************F*/
static int32_t _CmdImgConvDecodeAndSaveMulti(const char *pFileName, uint8_t *pInputFile, int32_t iInputSize, DirtyGraphInfoT *pImageInfo)
{
    char strOutputFileName[1024], *pExt;
    uint8_t *p32BitImage;
    int32_t iResult, iFrame, iFrameSize;
    uint8_t bBmp;

    // convert to 32bit raw image
    if ((p32BitImage = _CmdImgConvDecodeImage(pInputFile, iInputSize, pImageInfo, TRUE)) == NULL)
    {
        return(0);
    }

    // copy filename
    ds_strnzcpy(strOutputFileName, pFileName, sizeof(strOutputFileName));

    // save output image based on type
    if ((pExt = ds_stristr(strOutputFileName, ".raw")) != NULL)
    {
        bBmp = FALSE;
    }
    else if ((pExt = ds_stristr(strOutputFileName, ".bmp")) != NULL)
    {
        bBmp = TRUE;
    }
    else
    {
        ZPrintf("imgconv: output filetype unrecognized\n");
        return(0);
    }

    // set up filename for writing multiple frames; first truncate the extension
    *pExt = '\0';

    // write out frame data as successive images
    for (iFrame = 0, iFrameSize = pImageInfo->iWidth*pImageInfo->iHeight*4, iResult = 0; (iFrame < pImageInfo->uNumFrames) && (iResult == 0); iFrame += 1)
    {
        ds_snzprintf(pExt, (signed)sizeof(strOutputFileName)-(pExt-strOutputFileName), "-%02d%s", iFrame, bBmp ? ".bmp" : ".raw");
        iResult = bBmp ? _CmdImgConvSaveBMP(strOutputFileName, p32BitImage+(iFrame*iFrameSize), pImageInfo->iWidth, pImageInfo->iHeight) : _CmdImgConvSaveRAW(strOutputFileName, p32BitImage+(iFrame * iFrameSize), pImageInfo->iWidth, pImageInfo->iHeight);
    }

    // success?
    if (iResult >= 0)
    {
        ds_snzprintf(pExt, (signed)sizeof(strOutputFileName)-(pExt-strOutputFileName), "-XX%s", bBmp ? ".bmp" : ".raw");
        ZPrintf("imgconv: saved %d output images %s\n", iFrame, strOutputFileName);
    }
    else
    {
        ZPrintf("imgconv: error writing output file '%s'\n", strOutputFileName);
    }

    // dispose of buffer and return result to caller
    ZMemFree(p32BitImage);
    return(iResult);
}

/*F********************************************************************************/
/*!
    \Function _CmdImgConvDecodeAndSaveMulti2

    \Description
        Decode input multi-frame file to 32bit ARGB and save as raw or bmp files.
        A numerical extension is appended to differentiate the frames.  Uses
        DirtyGraphDecodeImageFrame().

    \Input *pFilename   - filename of file to save
    \Input *pInputFile  - input file
    \Input iInputSize   - input file size
    \Input *pImageInfo  - image info
    
    \Output
        int32_t         - ZFileSave() result

    \Version 02/06/2020 (jbrookes)
*/
/********************************************************************************F*/
static int32_t _CmdImgConvDecodeAndSaveMulti2(const char *pFileName, uint8_t *pInputFile, int32_t iInputSize, DirtyGraphInfoT *pImageInfo)
{
    char strOutputFileName[1024], *pExt;
    uint8_t *p32BitImage;
    int32_t iResult, iFrame, iError;
    uint8_t bBmp;

    // allocate space for 32bit raw image
    if ((p32BitImage = ZMemAlloc(pImageInfo->iWidth*pImageInfo->iHeight*4)) == NULL)
    {
        ZPrintf("imgconv: could not allocate memory for decoded image\n");
        DirtyGraphDestroy(pDirtyGraph);
        pDirtyGraph = NULL;
        return(0);
    }

    // copy filename
    ds_strnzcpy(strOutputFileName, pFileName, sizeof(strOutputFileName));

    // save output image based on type
    if ((pExt = ds_stristr(strOutputFileName, ".raw")) != NULL)
    {
        bBmp = FALSE;
    }
    else if ((pExt = ds_stristr(strOutputFileName, ".bmp")) != NULL)
    {
        bBmp = TRUE;
    }
    else
    {
        ZPrintf("imgconv: output filetype unrecognized\n");
        return(0);
    }

    // set up filename for writing multiple frames; first truncate the extension
    *pExt = '\0';

    // write out frame data as successive images
    for (iFrame = 0, iResult = 0; (iFrame < pImageInfo->uNumFrames) && (iResult == 0); iFrame += 1)
    {
        // decode the multiframe inmage
        uint64_t uTick = NetTickUsec();
        if ((iError = DirtyGraphDecodeImageFrame(pDirtyGraph, pImageInfo, p32BitImage, pImageInfo->iWidth, pImageInfo->iHeight, iFrame)) < 0)
        {
            ZPrintf("imgconv: error %d trying to decode image\n", iError);
            DirtyGraphDestroy(pDirtyGraph);
            pDirtyGraph = NULL;
            ZMemFree(p32BitImage);
            return(0);
        }
        ZPrintf("imgconv: %dus for decode\n", NetTickDiff(NetTickUsec(), uTick));

        // create filename
        ds_snzprintf(pExt, (signed)sizeof(strOutputFileName)-(pExt-strOutputFileName), "-%02d%s", iFrame, bBmp ? ".bmp" : ".raw");

        // save the image
        iResult = bBmp ? _CmdImgConvSaveBMP(strOutputFileName, p32BitImage, pImageInfo->iWidth, pImageInfo->iHeight) : _CmdImgConvSaveRAW(strOutputFileName, p32BitImage, pImageInfo->iWidth, pImageInfo->iHeight);
    }

    // success?
    if (iResult >= 0)
    {
        ds_snzprintf(pExt, (signed)sizeof(strOutputFileName)-(pExt-strOutputFileName), "-XX%s", bBmp ? ".bmp" : ".raw");
        ZPrintf("imgconv: saved %d output images %s\n", iFrame, strOutputFileName);
    }
    else
    {
        ZPrintf("imgconv: error writing output file '%s'\n", strOutputFileName);
    }

    // dispose of buffer and return result to caller
    ZMemFree(p32BitImage);
    return(iResult);
}


/*** Public functions *************************************************************/


/*F********************************************************************************/
/*!
    \Function CmdStream

    \Description
        Create the Module module.

    \Input *argz    - environment
    \Input argc     - number of args
    \Input *argv[]  - argument list
    
    \Output int32_t - standard return code

    \Version 02/23/2006 (jbrookes)
*/
/********************************************************************************F*/
int32_t CmdImgConv(ZContext *argz, int32_t argc, char *argv[])
{
    int32_t iInputSize, iResult, iArg = 1;
    uint8_t *pInputFile;
    const char *pInputName;
    DirtyGraphInfoT ImageInfo;
    uint8_t bMultiFrame = FALSE, bMultiFrame2 = FALSE;

    // check for module state destroy (no arguments)
    if ((argc == 1) && (pDirtyGraph != NULL))
    {
        // destroy state
        DirtyGraphDestroy(pDirtyGraph);
        pDirtyGraph = NULL;
        ZPrintf("%s: graph instance destroyed\n", argv[0]);
        return(0);
    }

    // check for multiframe argument
    if ((argc > 1) && !strcmp(argv[iArg], "-m"))
    {
        iArg += 1;
        bMultiFrame = TRUE;
    }
    // check for multiframe flavor #2
    if ((argc > 1) && !strcmp(argv[iArg], "-m2"))
    {
        iArg += 1;
        bMultiFrame = TRUE;
        bMultiFrame2 = TRUE;
    }

    // usage
    if ((argc == iArg) || (argc > iArg+2))
    {
        ZPrintf("usage: %s [-m] <inputfile> <outputfile>\n", argv[0]);
        return(0);
    }
    pInputName = argv[iArg];
    
    // open input file for reading
    if ((pInputFile = (uint8_t *)ZFileLoad(pInputName, &iInputSize, ZFILE_OPENFLAG_RDONLY|ZFILE_OPENFLAG_BINARY)) == NULL)
    {
        ZPrintf("%s: unable to open input file '%s'\n", argv[0], pInputName);
        return(0);
    }

    #if RUNLIBJPEG
    // first read it with libjpeg for comparison
    if (ds_stristr(pInputName, ".jpg"))
    {
        char strError[256];
        jpeg_read_dibitmap((char *)pInputName, strError, sizeof(strError), NULL);
    }
    #endif

    // parse image info
    if (_CmdImgConvParseHeader(pInputFile, iInputSize, &ImageInfo) == NULL)
    {
        return(0);
    }
   
    // output?
    if (argc == iArg+2)
    {
        if ((ImageInfo.uNumFrames == 1) || !bMultiFrame)
        {
            iResult = _CmdImgConvDecodeAndSave(argv[iArg+1], pInputFile, iInputSize, &ImageInfo);
        }
        else if (!bMultiFrame2)
        {
            iResult = _CmdImgConvDecodeAndSaveMulti(argv[iArg+1], pInputFile, iInputSize, &ImageInfo);
        }
        else
        {
            iResult = _CmdImgConvDecodeAndSaveMulti2(argv[iArg+1], pInputFile, iInputSize, &ImageInfo);
        }
    }
    
    // dispose of source image
    ZMemFree(pInputFile);

    return(0);
}