/*
| ==============================================================================
| Copyright (C) 2010 Prosilica.  All Rights Reserved.
|
| Redistribution of this header file, in original or modified form, without
| prior written consent of Prosilica is prohibited.
|
|==============================================================================
|
| This sample code, provides a frame to jpeg file function (based on IJG's library)
|
|==============================================================================
|
| THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
| WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF TITLE,
| NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR  PURPOSE ARE
| DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
| INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
| LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
| OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  AND ON ANY THEORY OF
| LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
| NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
| EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|==============================================================================
*/

#include <malloc.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>

#include "Jpeg.h"
#include "jpeglib.h"

typedef struct {

    unsigned char red;
    unsigned char green;
    unsigned char blue;

} tRGB;

typedef struct {

    unsigned short red;
    unsigned short green;
    unsigned short blue;

} tRGB16;

typedef struct {

    unsigned char blue;
    unsigned char green;
    unsigned char red;
   
} tBGR;

typedef struct {

    unsigned char red;
    unsigned char green;
    unsigned char blue;
    unsigned char alpha;

} tRGBA;

typedef struct {

    unsigned char blue;
    unsigned char green;
    unsigned char red;
    unsigned char alpha;
   
} tBGRA;

typedef struct {

    unsigned char u;
    unsigned char y1;
    unsigned char y2;
    unsigned char v;
    unsigned char y3;
    unsigned char y4;

} tYUV411;

typedef struct {

    unsigned char u;
    unsigned char y1;
    unsigned char v;
    unsigned char y2;

} tYUV422;

typedef struct {

    unsigned char u;
    unsigned char y1;
    unsigned char v;
    unsigned char _pad1;
    unsigned char y2;
    unsigned char _pad2;

} tYUV444;

typedef struct {

    unsigned char lbyte;
    unsigned char mbyte;
    unsigned char ubyte;

} tPackedPixel;

#ifndef max
#define max(a,b) (a > b ? a : b)
#endif

#ifndef min
#define min(a,b) (a < b ? a : b)
#endif

// convert YUV to RGB
inline void YUV2RGB(int y,int u,int v,unsigned char& r,unsigned char& g,unsigned char& b)
{
   // u and v are +-0.5
   u -= 128;
   v -= 128;

   // Conversion (clamped to 0..255)
   r = min(max(0,(int)(y + 1.370705 * (float)v)),255);
   g = min(max(0,(int)(y - 0.698001 * (float)v - 0.337633 * (float)u)),255);
   b = min(max(0,(int)(y + 1.732446 * (float)u)),255);
}

/*
 * Function:  JPEGSetup()
 *
 * Purpose:   Setup the provided JPEG context for usage
 *
 * Arguments:
 *
 * [ IN] tJPEGContext* pContext, context
 *
 * Results: false if failed
 *
 */
bool JPEGSetup(tJPEGContext* pContext)
{
    memset(pContext,0,sizeof(tJPEGContext));
    
    pContext->Info = (struct jpeg_compress_struct*)malloc(sizeof(struct jpeg_compress_struct));  
    
    return pContext->Info != NULL;
}

/*
 * Function:  JPEGClear()
 *
 * Purpose:   clear the provided JPEG context after usage
 *
 * Arguments:
 *
 * [ IN] tJPEGContext* pContext, context
 *
 */
void JPEGClear(tJPEGContext* pContext)
{
    if(pContext->Buffer)
    {
        free(pContext->Buffer);
        pContext->Buffer = NULL;   
    }   
    
    if(pContext->Info)
    {
        free(pContext->Info);
        pContext->Info = NULL;
    }
}

/*
 * Function:  JPEGAdapt()
 *
 * Purpose:   adapt the provided JPEG context for usage with the given ROI
 *
 * Arguments:
 *
 * [ IN] tJPEGContext* pContext,    context
 * [ IN] tPvImageFormat aFormat,    pixel format
 * [ IN] unsigned int aWidth,       max width of the frame
 * [ IN] unsigned int aHeight,      max height of the frame
 * 
 * Results: false if failed
 */
bool JPEGAdapt(tJPEGContext* pContext,tPvImageFormat aFormat,unsigned int aWidth,unsigned int aHeight)
{
    bool lOutcome = true;

    switch(aFormat)
    {
        case ePvFmtMono8:
        case ePvFmtRgb24:
        {
            if(pContext->Buffer)
            {
                free(pContext->Buffer);
            
                pContext->Buffer = NULL;
                pContext->Length = 0;
            }
                    
            break;
        }
        case ePvFmtMono16:
        {
            if(!pContext->Buffer)
            {
                pContext->Length = aWidth;
                pContext->Buffer = (unsigned char*)malloc(pContext->Length);
               
                lOutcome = pContext->Buffer != NULL;
            }
            else
            if(aWidth > pContext->Length)
            {
                unsigned char* lBuffer = (unsigned char*)realloc(pContext->Buffer,aWidth);
                
                if(lBuffer)
                {
                    pContext->Buffer = lBuffer;
                    pContext->Length = aWidth;       
                }
                else
                    lOutcome = false;
            }            
        
            break;
        }
        case ePvFmtBayer16:
        case ePvFmtBayer12Packed:
        {
            unsigned long lLength = aWidth * aHeight * 4; 
        
            if(!pContext->Buffer)
            {
                pContext->Length = lLength;
                pContext->Buffer = (unsigned char*)malloc(pContext->Length);
                
                lOutcome = pContext->Buffer != NULL;
            }
            else          
            if(lLength > pContext->Length)
            {
                unsigned char* lBuffer = (unsigned char*)realloc(pContext->Buffer,lLength);
                
                if(lBuffer)
                {
                    pContext->Buffer = lBuffer;
                    pContext->Length = lLength;       
                }
                else
                    lOutcome = false;
            } 
                    
            break;
        }
        case ePvFmtMono12Packed:
        {
            unsigned long lLength = aWidth * aHeight; 
        
            if(!pContext->Buffer)
            {
                pContext->Length = lLength;
                pContext->Buffer = (unsigned char*)malloc(pContext->Length);
                
                lOutcome = pContext->Buffer != NULL;
            }
            else          
            if(lLength > pContext->Length)
            {
                unsigned char* lBuffer = (unsigned char*)realloc(pContext->Buffer,lLength);
                
                if(lBuffer)
                {
                    pContext->Buffer = lBuffer;
                    pContext->Length = lLength;       
                }
                else
                    lOutcome = false;
            } 
                    
            break;
        }           
        case ePvFmtBgr24:
        case ePvFmtRgba32:
        case ePvFmtBgra32:
        case ePvFmtRgb48:
        {
            unsigned long lLength = aWidth * 3; 
        
            if(!pContext->Buffer)
            {
                pContext->Length = lLength;
                pContext->Buffer = (unsigned char*)malloc(pContext->Length);
                
                lOutcome = pContext->Buffer != NULL;
            }
            else          
            if(lLength > pContext->Length)
            {
                unsigned char* lBuffer = (unsigned char*)realloc(pContext->Buffer,lLength);
                
                if(lBuffer)
                {
                    pContext->Buffer = lBuffer;
                    pContext->Length = lLength;       
                }
                else
                    lOutcome = false;
            } 
                    
            break;
        }        
        default:
        {
            if(!pContext->Buffer)
            {
                pContext->Length = aWidth * aHeight * 3;
                pContext->Buffer = (unsigned char*)malloc(pContext->Length);
                
                lOutcome = pContext->Buffer != NULL;
            }
            else
            {
                unsigned int lLength = aWidth * aHeight * 3;
                
                if(lLength > pContext->Length)
                {
                    unsigned char* lBuffer = (unsigned char*)realloc(pContext->Buffer,lLength);
                    
                    if(lBuffer)
                    {
                        pContext->Buffer = lBuffer;
                        pContext->Length = lLength;       
                    }
                    else
                        lOutcome = false;
                }
            }         
        
            break;
        }        
    }
    
    return lOutcome;   
}

/*
 * Function:  JPEGWrite()
 *
 * Purpose:   write a frame into a file
 *
 * Arguments:
 *
 * [ IN] tJPEGContext* pContext,    context
 * [ IN] const tPvFrame* pFrame,    frame
 * [ IN] const char* pFilePath,     path&name of the file
 * 
 * Results: false if failed
 */
bool JPEGWrite(tJPEGContext* pContext,const tPvFrame* pFrame,const char* pFilePath,unsigned char aQuality)
{
    FILE* lFile;    
    
    if((lFile = fopen(pFilePath,"wb")))
    {
        JSAMPROW                lRow;
        struct jpeg_error_mgr   jerr;
        
        pContext->Info->err = jpeg_std_error(&jerr);
        jpeg_create_compress(pContext->Info);
        jpeg_stdio_dest(pContext->Info,lFile);
        
        pContext->Info->image_width      = pFrame->Width;      
        pContext->Info->image_height     = pFrame->Height;    
        
        if(pFrame->Format == ePvFmtMono8 || pFrame->Format == ePvFmtMono16 || pFrame->Format == ePvFmtMono12Packed)
        {
            pContext->Info->input_components = 1;
            pContext->Info->in_color_space   = JCS_GRAYSCALE;      
        }             
        else
        {
            pContext->Info->input_components = 3;
            pContext->Info->in_color_space   = JCS_RGB;  
        }
        
        jpeg_set_defaults(pContext->Info);
        jpeg_set_quality(pContext->Info,aQuality,true);      //set the quality [0..100]
        jpeg_start_compress(pContext->Info,true);                  
        
        switch(pFrame->Format)
        {
            case ePvFmtMono8:
            
            {
                const unsigned char* lBuffer = (const unsigned char*)pFrame->ImageBuffer;
            
                for(unsigned int j=0;j<pFrame->Height;j++)
                {
                    lRow = (JSAMPROW)&lBuffer[j * pFrame->Width];
                
                    jpeg_write_scanlines(pContext->Info,&lRow,1);    
                }        
            
                break;
            }
            case ePvFmtMono16:
            {
                const unsigned char     lBitshift   = (unsigned char)pFrame->BitDepth - 8;
                const unsigned short*   lBuffer     = (const unsigned short*)pFrame->ImageBuffer;
                 
                lRow = (JSAMPROW)pContext->Buffer;
                            
                for(unsigned int j=0;j<pFrame->Height;j++)
                {               
                    for(unsigned int i=0;i<pFrame->Width;i++)
                    #ifdef _ppc
                        pContext->Buffer[i] = lBuffer[j * pFrame->Width + i] << lBitshift;
                    #else
                        pContext->Buffer[i] = lBuffer[j * pFrame->Width + i] >> lBitshift;
                    #endif
                                       
                    jpeg_write_scanlines(pContext->Info,&lRow,1);   
                }   
                          
                break;                    
            }
            case ePvFmtMono12Packed:
            {
                // tPackedPixel
                const unsigned char lBitshift   = (unsigned char)pFrame->BitDepth - 8;
                const tPackedPixel* lSource     = (const tPackedPixel*)pFrame->ImageBuffer;
                unsigned char*      lTarget     = (unsigned char*)pContext->Buffer;
                unsigned short      lPixel;
                unsigned long       lOffset     = 0;
                unsigned long       lCount      = pFrame->ImageSize / sizeof(tPackedPixel);
                
                for(unsigned long i = 0;i<lCount;i++)
                {
                    lPixel = (unsigned short)lSource[i].lbyte << 4;
                    lPixel += ((unsigned short)lSource[i].mbyte & 0xF0) >> 4;
                    lTarget[lOffset++] = lPixel >> lBitshift;
                    
                    lPixel = (unsigned short)lSource[i].ubyte << 4;
                    lPixel += ((unsigned short)lSource[i].mbyte & 0x0F) >> 4;                    
                    lTarget[lOffset++] = lPixel >> lBitshift;
                }               
                
                // send to JPEG lib
                for(unsigned int j=0;j<pFrame->Height;j++)
                {
                    lRow = (JSAMPROW)&lTarget[j * pFrame->Width];
                    jpeg_write_scanlines(pContext->Info,&lRow,1);    
                }                 
            
                break;
            }
            case ePvFmtBayer8:
            {
                PvUtilityColorInterpolate(pFrame,&pContext->Buffer[0],&pContext->Buffer[1],&pContext->Buffer[2],2,0);
                  
                for(unsigned int j=0;j<pFrame->Height;j++)
                {
                    lRow = (JSAMPROW)&pContext->Buffer[j * pFrame->Width * 3];
                
                    jpeg_write_scanlines(pContext->Info,&lRow,1);    
                }     
                
                break;                             
            }
            case ePvFmtBayer16:
            {
                const unsigned char     lBitshift   = (unsigned char)pFrame->BitDepth - 8;
                const unsigned short*   lImageData  = (const unsigned short*)pFrame->ImageBuffer;
                unsigned char*          lBayerData  = pContext->Buffer;
                unsigned char*          lColorData  = pContext->Buffer + (pFrame->Width * pFrame->Height);
                unsigned long           lOffset;
                tPvFrame                lFrame      = *pFrame;
                
                lFrame.Format           = ePvFmtBayer8;
                lFrame.ImageBuffer      = lBayerData;
                lFrame.ImageBufferSize  = lFrame.Width * lFrame.Height;
                
                // convert to 8bit
                for(unsigned int j=0;j<pFrame->Height;j++)
                    for(unsigned int i=0;i<pFrame->Width;i++)
                    {
                        lOffset = j * pFrame->Width + i;
                    
                        #ifdef _ppc
                            lBayerData[lOffset] = lImageData[lOffset] << lBitshift;
                        #else
                            lBayerData[lOffset] = lImageData[lOffset] >> lBitshift;
                        #endif
                    }                                            
            
                // interpolate
                PvUtilityColorInterpolate(&lFrame,&lColorData[0],&lColorData[1],&lColorData[2],2,0);
                  
                // send to JPEG lib
                for(unsigned int j=0;j<pFrame->Height;j++)
                {
                    lRow = (JSAMPROW)&lColorData[j * pFrame->Width * 3];
                    jpeg_write_scanlines(pContext->Info,&lRow,1);    
                }                
            
                break;
            }  
            case ePvFmtBayer12Packed:
            {
                const tPackedPixel* lSource     = (const tPackedPixel*)pFrame->ImageBuffer;
                unsigned char*      lTarget     = (unsigned char*)pContext->Buffer;
                unsigned short      lPixel;
                unsigned long       lOffset     = 0;
                unsigned long       lCount      = pFrame->ImageSize / sizeof(tPackedPixel);
                const unsigned char lBitshift   = (unsigned char)pFrame->BitDepth - 8;
                unsigned char*      lColorData  = pContext->Buffer + (pFrame->Width * pFrame->Height);
                tPvFrame            lFrame      = *pFrame;
                
                lFrame.Format           = ePvFmtBayer8;
                lFrame.ImageBuffer      = lTarget;
                lFrame.ImageBufferSize  = lFrame.Width * lFrame.Height;
                
                for(unsigned long i = 0;i<lCount;i++)
                {
                    lPixel = (unsigned short)lSource[i].lbyte << 4;
                    lPixel += ((unsigned short)lSource[i].mbyte & 0xF0) >> 4;
                    lTarget[lOffset++] = lPixel >> lBitshift;
                    
                    lPixel = (unsigned short)lSource[i].ubyte << 4;
                    lPixel += ((unsigned short)lSource[i].mbyte & 0x0F) >> 4;                    
                    lTarget[lOffset++] = lPixel >> lBitshift;
                }
                                            
                // interpolate
                PvUtilityColorInterpolate(&lFrame,&lColorData[0],&lColorData[1],&lColorData[2],2,0);
                  
                // send to JPEG lib
                for(unsigned int j=0;j<pFrame->Height;j++)
                {
                    lRow = (JSAMPROW)&lColorData[j * pFrame->Width * 3];
                    jpeg_write_scanlines(pContext->Info,&lRow,1);    
                }
                            
                break;
            }
            case ePvFmtRgb24:
            {
                const unsigned char* lBuffer = (const unsigned char*)pFrame->ImageBuffer;
            
                for(unsigned int j=0;j<pFrame->Height;j++)
                {
                    lRow = (JSAMPROW)&lBuffer[j * pFrame->Width * 3];
                    jpeg_write_scanlines(pContext->Info,&lRow,1);    
                }                 
            
                break;
            } 
            case ePvFmtBgr24:    
            {
                const tBGR*     lSource = (const tBGR*)pFrame->ImageBuffer;
                tRGB*           lTarget = (tRGB*)pContext->Buffer;
                unsigned long   lOffset;
                
                lRow = (JSAMPROW)lTarget;
                
                for(unsigned int j=0;j<pFrame->Height;j++)
                {
                    for(unsigned int i=0;i<pFrame->Width;i++)
                    {
                        lOffset = j * pFrame->Width + i;
                    
                        lTarget[i].red   = lSource[lOffset].red;
                        lTarget[i].green = lSource[lOffset].green;
                        lTarget[i].blue  = lSource[lOffset].blue;
                    }
                    
                    jpeg_write_scanlines(pContext->Info,&lRow,1);    
                }                  
            
                break;
            }     
            case ePvFmtRgba32:
            {
                const tRGBA*    lSource = (const tRGBA*)pFrame->ImageBuffer;
                tRGB*           lTarget = (tRGB*)pContext->Buffer;
                unsigned long   lOffset;
                
                lRow = (JSAMPROW)lTarget;
                
                for(unsigned int j=0;j<pFrame->Height;j++)
                {
                    for(unsigned int i=0;i<pFrame->Width;i++)
                    {
                        lOffset = j * pFrame->Width + i;
                    
                        lTarget[i].red   = lSource[lOffset].red;
                        lTarget[i].green = lSource[lOffset].green;
                        lTarget[i].blue  = lSource[lOffset].blue;
                    }
                    
                    jpeg_write_scanlines(pContext->Info,&lRow,1);    
                }                
            
                break;
            }
            case ePvFmtBgra32:
            {
                const tBGRA*    lSource = (const tBGRA*)pFrame->ImageBuffer;
                tRGB*           lTarget = (tRGB*)pContext->Buffer;
                unsigned long   lOffset;
                
                lRow = (JSAMPROW)lTarget;
                
                for(unsigned int j=0;j<pFrame->Height;j++)
                {
                    for(unsigned int i=0;i<pFrame->Width;i++)
                    {
                        lOffset = j * pFrame->Width + i;
                    
                        lTarget[i].red   = lSource[lOffset].red;
                        lTarget[i].green = lSource[lOffset].green;
                        lTarget[i].blue  = lSource[lOffset].blue;
                    }
                    
                    jpeg_write_scanlines(pContext->Info,&lRow,1);    
                }                
            
                break;            
            }
            case ePvFmtRgb48:
            {
                const tRGB16*       lSource   = (const tRGB16*)pFrame->ImageBuffer;
                tRGB*               lTarget   = (tRGB*)pContext->Buffer;
                unsigned long       lOffset;
                const unsigned char lBitshift = (unsigned char)pFrame->BitDepth - 8;
                
                lRow = (JSAMPROW)lTarget;
                
                for(unsigned int j=0;j<pFrame->Height;j++)
                {
                    for(unsigned int i=0;i<pFrame->Width;i++)
                    {
                        lOffset = j * pFrame->Width + i;
                    
                        #ifdef _ppc
                        lTarget[i].red   = lSource[lOffset].red << lBitshift;
                        lTarget[i].green = lSource[lOffset].green << lBitshift;
                        lTarget[i].blue  = lSource[lOffset].blue << lBitshift;
                        #else
                        lTarget[i].red   = lSource[lOffset].red >> lBitshift;
                        lTarget[i].green = lSource[lOffset].green >> lBitshift;
                        lTarget[i].blue  = lSource[lOffset].blue >> lBitshift;                        
                        #endif
                    }
                    
                    jpeg_write_scanlines(pContext->Info,&lRow,1);    
                }  
            
                break;
            }
            case ePvFmtYuv411:
            {
                const tYUV411* lSource = (const tYUV411*)pFrame->ImageBuffer;
                tRGB*          lTarget = (tRGB*)pContext->Buffer;
                unsigned long  lOffset;
                unsigned long  k = 0;
                
                lRow = (JSAMPROW)lTarget;
                
                for(unsigned int j=0;j<pFrame->Height;j++)
                    for(unsigned int i=0;i<pFrame->Width;i+=4,k++)
                    {
                        lOffset = j * pFrame->Width + i;
                    
                        YUV2RGB(lSource[k].y1,lSource[k].u,lSource[k].v,lTarget[lOffset].red,lTarget[lOffset].green,lTarget[lOffset].blue);
                        YUV2RGB(lSource[k].y2,lSource[k].u,lSource[k].v,lTarget[lOffset+1].red,lTarget[lOffset+1].green,lTarget[lOffset+1].blue);
                        YUV2RGB(lSource[k].y3,lSource[k].u,lSource[k].v,lTarget[lOffset+2].red,lTarget[lOffset+2].green,lTarget[lOffset+2].blue);
                        YUV2RGB(lSource[k].y4,lSource[k].u,lSource[k].v,lTarget[lOffset+3].red,lTarget[lOffset+3].green,lTarget[lOffset+3].blue);   
                    }                                            
            
                 // send to JPEG lib
                for(unsigned int j=0;j<pFrame->Height;j++)
                {
                    lRow = (JSAMPROW)&pContext->Buffer[j * pFrame->Width * 3];
                    jpeg_write_scanlines(pContext->Info,&lRow,1);    
                }                              
            
                break;
            }
            case ePvFmtYuv422:
            {
                const tYUV422* lSource = (const tYUV422*)pFrame->ImageBuffer;
                tRGB*          lTarget = (tRGB*)pContext->Buffer;
                unsigned long  lOffset;
                unsigned long  k = 0;
                
                lRow = (JSAMPROW)lTarget;
                
                for(unsigned int j=0;j<pFrame->Height;j++)
                    for(unsigned int i=0;i<pFrame->Width;i+=2,k++)
                    {
                        lOffset = j * pFrame->Width + i;
                    
                        YUV2RGB(lSource[k].y1,lSource[k].u,lSource[k].v,lTarget[lOffset].red,lTarget[lOffset].green,lTarget[lOffset].blue);
                        YUV2RGB(lSource[k].y2,lSource[k].u,lSource[k].v,lTarget[lOffset+1].red,lTarget[lOffset+1].green,lTarget[lOffset+1].blue);
                    }                                            
            
                 // send to JPEG lib
                for(unsigned int j=0;j<pFrame->Height;j++)
                {
                    lRow = (JSAMPROW)&pContext->Buffer[j * pFrame->Width * 3];
                    jpeg_write_scanlines(pContext->Info,&lRow,1);    
                }                
            
                break;
            }
            case ePvFmtYuv444:
            {
                const tYUV444* lSource = (const tYUV444*)pFrame->ImageBuffer;
                tRGB*          lTarget = (tRGB*)pContext->Buffer;
                unsigned long  lOffset;
                unsigned long  k = 0;
                
                lRow = (JSAMPROW)lTarget;
                
                for(unsigned int j=0;j<pFrame->Height;j++)
                    for(unsigned int i=0;i<pFrame->Width;i+=2,k++)
                    {
                        lOffset = j * pFrame->Width + i;
                    
                        YUV2RGB(lSource[k].y1,lSource[k].u,lSource[k].v,lTarget[lOffset].red,lTarget[lOffset].green,lTarget[lOffset].blue);
                        YUV2RGB(lSource[k].y2,lSource[k].u,lSource[k].v,lTarget[lOffset+1].red,lTarget[lOffset+1].green,lTarget[lOffset+1].blue);
                    }                                            
            
                 // send to JPEG lib
                for(unsigned int j=0;j<pFrame->Height;j++)
                {
                    lRow = (JSAMPROW)&pContext->Buffer[j * pFrame->Width * 3];
                    jpeg_write_scanlines(pContext->Info,&lRow,1);    
                }                
            
                break;
            }            
            default:
                break;
        }
   
        jpeg_finish_compress(pContext->Info);
    
        fclose(lFile);
        
        return true;
    }
    else
        return false;
}