DLLEXPORT int DLLCALL tjDecompressHeader(tjhandle h,
unsigned char *srcbuf, unsigned long size,
int *width, int *height)
{
checkhandle(h);
if(srcbuf==NULL || size<=0 || width==NULL || height==NULL)
_throw("Invalid argument in tjDecompressHeader()");
if(!j->initd) _throw("Instance has not been initialized for decompression");
if(setjmp(j->jerr.jb))
{ // this will execute if LIBJPEG has an error
return -1;
}
j->jsms.bytes_in_buffer = size;
j->jsms.next_input_byte = srcbuf;
jpeg_read_header(&j->dinfo, TRUE);
*width=j->dinfo.image_width; *height=j->dinfo.image_height;
jpeg_abort_decompress(&j->dinfo);
if(*width<1 || *height<1) _throw("Invalid data returned in header");
return 0;
}
DLLEXPORT int DLLCALL tjDecompress(tjhandle h,
unsigned char *srcbuf, unsigned long size,
unsigned char *dstbuf, int width, int pitch, int height, int ps,
int flags)
{
int i; JSAMPROW *row_pointer=NULL;
checkhandle(h);
if(srcbuf==NULL || size<=0
|| dstbuf==NULL || width<=0 || pitch<0 || height<=0)
_throw("Invalid argument in tjDecompress()");
if(ps!=3 && ps!=4) _throw("This compressor can only take 24-bit or 32-bit RGB input");
if(!j->initd) _throw("Instance has not been initialized for decompression");
if(pitch==0) pitch=width*ps;
j->dinfo.rgb_pixelsize=ps;
j->dinfo.rgb_green=1;
if(flags&TJ_BGR) {j->dinfo.rgb_red=2; j->dinfo.rgb_blue=0;}
else {j->dinfo.rgb_red=0; j->dinfo.rgb_blue=2;}
if(flags&TJ_ALPHAFIRST)
{
j->dinfo.rgb_red++; j->dinfo.rgb_green++; j->dinfo.rgb_blue++;
}
if(setjmp(j->jerr.jb))
{ // this will execute if LIBJPEG has an error
if(row_pointer) free(row_pointer);
return -1;
}
j->jsms.bytes_in_buffer = size;
j->jsms.next_input_byte = srcbuf;
jpeg_read_header(&j->dinfo, TRUE);
if((row_pointer=(JSAMPROW *)malloc(sizeof(JSAMPROW)*height))==NULL)
_throw("Memory allocation failed in tjInitDecompress()");
for(i=0; i<height; i++)
{
if(flags&TJ_BOTTOMUP) row_pointer[i]= &dstbuf[(height-i-1)*pitch];
else row_pointer[i]= &dstbuf[i*pitch];
}
j->dinfo.out_color_space=JCS_RGB;
jpeg_start_decompress(&j->dinfo);
while(j->dinfo.output_scanline<j->dinfo.output_height)
{
jpeg_read_scanlines(&j->dinfo, &row_pointer[j->dinfo.output_scanline],
j->dinfo.output_height-j->dinfo.output_scanline);
}
jpeg_finish_decompress(&j->dinfo);
if(row_pointer) free(row_pointer);
return 0;
}
DLLEXPORT int DLLCALL tjDestroy(tjhandle h)
{
checkhandle(h);
if(setjmp(j->jerr.jb)) return -1;
if(j->initc) jpeg_destroy_compress(&j->cinfo);
if(j->initd) jpeg_destroy_decompress(&j->dinfo);
free(j);
return 0;
}
DLLEXPORT int DLLCALL tjDecompressHeader2(tjhandle h,
unsigned char *srcbuf, unsigned long size,
int *width, int *height, int *jpegsub)
{
int i, k, retval=0;
checkhandle(h);
if(srcbuf==NULL || size<=0 || width==NULL || height==NULL || jpegsub==NULL)
_throw("Invalid argument in tjDecompressHeader2()");
if(!j->initd) _throw("Instance has not been initialized for decompression");
if(setjmp(j->jerr.jb))
{ // this will execute if LIBJPEG has an error
return -1;
}
j->jsms.bytes_in_buffer = size;
j->jsms.next_input_byte = srcbuf;
jpeg_read_header(&j->dinfo, TRUE);
*width=j->dinfo.image_width; *height=j->dinfo.image_height;
*jpegsub=-1;
for(i=0; i<NUMSUBOPT; i++)
{
if(j->dinfo.num_components==pixelsize[i])
{
if(j->dinfo.comp_info[0].h_samp_factor==hsampfactor[i]
&& j->dinfo.comp_info[0].v_samp_factor==vsampfactor[i])
{
int match=0;
for(k=1; k<j->dinfo.num_components; k++)
{
if(j->dinfo.comp_info[k].h_samp_factor==1
&& j->dinfo.comp_info[k].v_samp_factor==1)
match++;
}
if(match==j->dinfo.num_components-1)
{
*jpegsub=i; break;
}
}
}
}
jpeg_abort_decompress(&j->dinfo);
if(*jpegsub<0) _throw("Could not determine subsampling type for JPEG image");
if(*width<1 || *height<1) _throw("Invalid data returned in header");
bailout:
return retval;
}
DLLEXPORT int DLLCALL tjCompress(tjhandle h,
unsigned char *srcbuf, int width, int pitch, int height, int ps,
unsigned char *dstbuf, unsigned long *size,
int jpegsub, int qual, int flags)
{
int i; JSAMPROW *row_pointer=NULL;
checkhandle(h);
if(srcbuf==NULL || width<=0 || pitch<0 || height<=0
|| dstbuf==NULL || size==NULL
|| jpegsub<0 || jpegsub>=NUMSUBOPT || qual<0 || qual>100)
_throw("Invalid argument in tjCompress()");
if(ps!=3 && ps!=4) _throw("This compressor can only take 24-bit or 32-bit RGB input");
if(!j->initc) _throw("Instance has not been initialized for compression");
if(pitch==0) pitch=width*ps;
j->cinfo.rgb_pixelsize = ps;
j->cinfo.rgb_green = 1;
if(flags&TJ_BGR) {j->cinfo.rgb_red = 2; j->cinfo.rgb_blue = 0;}
else {j->cinfo.rgb_red = 0; j->cinfo.rgb_blue = 2;}
if(flags&TJ_ALPHAFIRST)
{
j->cinfo.rgb_red++; j->cinfo.rgb_green++; j->cinfo.rgb_blue++;
}
j->cinfo.image_width = width;
j->cinfo.image_height = height;
j->cinfo.input_components = ps;
j->cinfo.in_color_space = JCS_RGB;
if(setjmp(j->jerr.jb))
{ // this will execute if LIBJPEG has an error
if(row_pointer) free(row_pointer);
return -1;
}
jpeg_set_defaults(&j->cinfo);
jpeg_set_quality(&j->cinfo, qual, TRUE);
if(jpegsub==TJ_GRAYSCALE)
jpeg_set_colorspace(&j->cinfo, JCS_GRAYSCALE);
else
jpeg_set_colorspace(&j->cinfo, JCS_YCbCr);
j->cinfo.dct_method = JDCT_FASTEST;
j->cinfo.comp_info[0].h_samp_factor=hsampfactor[jpegsub];
j->cinfo.comp_info[1].h_samp_factor=1;
j->cinfo.comp_info[2].h_samp_factor=1;
j->cinfo.comp_info[0].v_samp_factor=vsampfactor[jpegsub];
j->cinfo.comp_info[1].v_samp_factor=1;
j->cinfo.comp_info[2].v_samp_factor=1;
j->jdms.next_output_byte = dstbuf;
j->jdms.free_in_buffer = TJBUFSIZE(j->cinfo.image_width, j->cinfo.image_height);
if((row_pointer=(JSAMPROW *)malloc(sizeof(JSAMPROW)*height))==NULL)
_throw("Memory allocation failed in tjInitCompress()");
for(i=0; i<height; i++)
{
if(flags&TJ_BOTTOMUP) row_pointer[i]= &srcbuf[(height-i-1)*pitch];
else row_pointer[i]= &srcbuf[i*pitch];
}
jpeg_start_compress(&j->cinfo, TRUE);
while(j->cinfo.next_scanline<j->cinfo.image_height)
{
jpeg_write_scanlines(&j->cinfo, &row_pointer[j->cinfo.next_scanline],
j->cinfo.image_height-j->cinfo.next_scanline);
}
jpeg_finish_compress(&j->cinfo);
*size=TJBUFSIZE(j->cinfo.image_width, j->cinfo.image_height)-(j->jdms.free_in_buffer);
if(row_pointer) free(row_pointer);
return 0;
}
DLLEXPORT int DLLCALL tjDecompress(tjhandle h,
unsigned char *srcbuf, unsigned long size,
unsigned char *dstbuf, int width, int pitch, int height, int ps,
int flags)
{
int i, row, retval=0; JSAMPROW *row_pointer=NULL, *outbuf[MAX_COMPONENTS];
int cw[MAX_COMPONENTS], ch[MAX_COMPONENTS], iw[MAX_COMPONENTS],
tmpbufsize=0, usetmpbuf=0, th[MAX_COMPONENTS];
JSAMPLE *_tmpbuf=NULL; JSAMPROW *tmpbuf[MAX_COMPONENTS];
checkhandle(h);
for(i=0; i<MAX_COMPONENTS; i++)
{
tmpbuf[i]=NULL; outbuf[i]=NULL;
}
if(srcbuf==NULL || size<=0
|| dstbuf==NULL || width<=0 || pitch<0 || height<=0)
_throw("Invalid argument in tjDecompress()");
if(ps!=3 && ps!=4 && ps!=1)
_throw("This decompressor can only handle 24-bit and 32-bit RGB or 8-bit grayscale output");
if(!j->initd) _throw("Instance has not been initialized for decompression");
if(pitch==0) pitch=width*ps;
if(flags&TJ_FORCEMMX) putenv("JSIMD_FORCEMMX=1");
else if(flags&TJ_FORCESSE) putenv("JSIMD_FORCESSE=1");
else if(flags&TJ_FORCESSE2) putenv("JSIMD_FORCESSE2=1");
if(setjmp(j->jerr.jb))
{ // this will execute if LIBJPEG has an error
retval=-1;
goto bailout;
}
j->jsms.bytes_in_buffer = size;
j->jsms.next_input_byte = srcbuf;
jpeg_read_header(&j->dinfo, TRUE);
if(flags&TJ_YUV)
{
j_decompress_ptr dinfo=&j->dinfo;
JSAMPLE *ptr=dstbuf;
for(i=0; i<dinfo->num_components; i++)
{
jpeg_component_info *compptr=&dinfo->comp_info[i];
int ih;
iw[i]=compptr->width_in_blocks*DCTSIZE;
ih=compptr->height_in_blocks*DCTSIZE;
cw[i]=PAD(dinfo->image_width, dinfo->max_h_samp_factor)
*compptr->h_samp_factor/dinfo->max_h_samp_factor;
ch[i]=PAD(dinfo->image_height, dinfo->max_v_samp_factor)
*compptr->v_samp_factor/dinfo->max_v_samp_factor;
if(iw[i]!=cw[i] || ih!=ch[i]) usetmpbuf=1;
th[i]=compptr->v_samp_factor*DCTSIZE;
tmpbufsize+=iw[i]*th[i];
if((outbuf[i]=(JSAMPROW *)malloc(sizeof(JSAMPROW)*ch[i]))==NULL)
_throw("Memory allocation failed in tjDecompress()");
for(row=0; row<ch[i]; row++)
{
outbuf[i][row]=ptr;
ptr+=PAD(cw[i], 4);
}
}
if(usetmpbuf)
{
if((_tmpbuf=(JSAMPLE *)malloc(sizeof(JSAMPLE)*tmpbufsize))==NULL)
_throw("Memory allocation failed in tjDecompress()");
ptr=_tmpbuf;
for(i=0; i<dinfo->num_components; i++)
{
if((tmpbuf[i]=(JSAMPROW *)malloc(sizeof(JSAMPROW)*th[i]))==NULL)
_throw("Memory allocation failed in tjDecompress()");
for(row=0; row<th[i]; row++)
{
tmpbuf[i][row]=ptr;
ptr+=iw[i];
}
}
}
}
else
{
if((row_pointer=(JSAMPROW *)malloc(sizeof(JSAMPROW)*height))==NULL)
_throw("Memory allocation failed in tjDecompress()");
for(i=0; i<height; i++)
{
if(flags&TJ_BOTTOMUP) row_pointer[i]= &dstbuf[(height-i-1)*pitch];
else row_pointer[i]= &dstbuf[i*pitch];
}
}
if(ps==1) j->dinfo.out_color_space = JCS_GRAYSCALE;
#if JCS_EXTENSIONS==1
else j->dinfo.out_color_space = JCS_EXT_RGB;
if(ps==3 && (flags&TJ_BGR))
j->dinfo.out_color_space = JCS_EXT_BGR;
else if(ps==4 && !(flags&TJ_BGR) && !(flags&TJ_ALPHAFIRST))
j->dinfo.out_color_space = JCS_EXT_RGBX;
else if(ps==4 && (flags&TJ_BGR) && !(flags&TJ_ALPHAFIRST))
j->dinfo.out_color_space = JCS_EXT_BGRX;
else if(ps==4 && (flags&TJ_BGR) && (flags&TJ_ALPHAFIRST))
j->dinfo.out_color_space = JCS_EXT_XBGR;
else if(ps==4 && !(flags&TJ_BGR) && (flags&TJ_ALPHAFIRST))
j->dinfo.out_color_space = JCS_EXT_XRGB;
#else
#error "TurboJPEG requires JPEG colorspace extensions"
#endif
if(flags&TJ_FASTUPSAMPLE) j->dinfo.do_fancy_upsampling=FALSE;
if(flags&TJ_YUV) j->dinfo.raw_data_out=TRUE;
jpeg_start_decompress(&j->dinfo);
if(flags&TJ_YUV)
{
j_decompress_ptr dinfo=&j->dinfo;
for(row=0; row<dinfo->output_height;
row+=dinfo->max_v_samp_factor*DCTSIZE)
{
JSAMPARRAY yuvptr[MAX_COMPONENTS];
int crow[MAX_COMPONENTS];
for(i=0; i<dinfo->num_components; i++)
{
jpeg_component_info *compptr=&dinfo->comp_info[i];
crow[i]=row*compptr->v_samp_factor/dinfo->max_v_samp_factor;
if(usetmpbuf) yuvptr[i]=tmpbuf[i];
else yuvptr[i]=&outbuf[i][crow[i]];
}
jpeg_read_raw_data(dinfo, yuvptr, dinfo->max_v_samp_factor*DCTSIZE);
if(usetmpbuf)
{
int j;
for(i=0; i<dinfo->num_components; i++)
{
for(j=0; j<min(th[i], ch[i]-crow[i]); j++)
{
memcpy(outbuf[i][crow[i]+j], tmpbuf[i][j], cw[i]);
}
}
}
}
}
else
{
while(j->dinfo.output_scanline<j->dinfo.output_height)
{
jpeg_read_scanlines(&j->dinfo, &row_pointer[j->dinfo.output_scanline],
j->dinfo.output_height-j->dinfo.output_scanline);
}
}
jpeg_finish_decompress(&j->dinfo);
bailout:
if(j->dinfo.global_state>DSTATE_START) jpeg_abort_decompress(&j->dinfo);
for(i=0; i<MAX_COMPONENTS; i++)
{
if(tmpbuf[i]) free(tmpbuf[i]);
if(outbuf[i]) free(outbuf[i]);
}
if(_tmpbuf) free(_tmpbuf);
if(row_pointer) free(row_pointer);
return retval;
}
DLLEXPORT int DLLCALL tjCompress(tjhandle h,
unsigned char *srcbuf, int width, int pitch, int height, int ps,
unsigned char *dstbuf, unsigned long *size,
int jpegsub, int qual, int flags)
{
int i, retval=0; JSAMPROW *row_pointer=NULL;
JSAMPLE *_tmpbuf[MAX_COMPONENTS], *_tmpbuf2[MAX_COMPONENTS];
JSAMPROW *tmpbuf[MAX_COMPONENTS], *tmpbuf2[MAX_COMPONENTS];
JSAMPROW *outbuf[MAX_COMPONENTS];
checkhandle(h);
for(i=0; i<MAX_COMPONENTS; i++)
{
tmpbuf[i]=NULL; _tmpbuf[i]=NULL;
tmpbuf2[i]=NULL; _tmpbuf2[i]=NULL; outbuf[i]=NULL;
}
if(srcbuf==NULL || width<=0 || pitch<0 || height<=0
|| dstbuf==NULL || size==NULL
|| jpegsub<0 || jpegsub>=NUMSUBOPT || qual<0 || qual>100)
_throw("Invalid argument in tjCompress()");
if(ps!=3 && ps!=4 && ps!=1)
_throw("This compressor can only handle 24-bit and 32-bit RGB or 8-bit grayscale input");
if(!j->initc) _throw("Instance has not been initialized for compression");
if(pitch==0) pitch=width*ps;
j->cinfo.image_width = width;
j->cinfo.image_height = height;
j->cinfo.input_components = ps;
if(ps==1) j->cinfo.in_color_space = JCS_GRAYSCALE;
#if JCS_EXTENSIONS==1
else j->cinfo.in_color_space = JCS_EXT_RGB;
if(ps==3 && (flags&TJ_BGR))
j->cinfo.in_color_space = JCS_EXT_BGR;
else if(ps==4 && !(flags&TJ_BGR) && !(flags&TJ_ALPHAFIRST))
j->cinfo.in_color_space = JCS_EXT_RGBX;
else if(ps==4 && (flags&TJ_BGR) && !(flags&TJ_ALPHAFIRST))
j->cinfo.in_color_space = JCS_EXT_BGRX;
else if(ps==4 && (flags&TJ_BGR) && (flags&TJ_ALPHAFIRST))
j->cinfo.in_color_space = JCS_EXT_XBGR;
else if(ps==4 && !(flags&TJ_BGR) && (flags&TJ_ALPHAFIRST))
j->cinfo.in_color_space = JCS_EXT_XRGB;
#else
#error "TurboJPEG requires JPEG colorspace extensions"
#endif
if(flags&TJ_FORCEMMX) putenv("JSIMD_FORCEMMX=1");
else if(flags&TJ_FORCESSE) putenv("JSIMD_FORCESSE=1");
else if(flags&TJ_FORCESSE2) putenv("JSIMD_FORCESSE2=1");
if(setjmp(j->jerr.jb))
{ // this will execute if LIBJPEG has an error
retval=-1;
goto bailout;
}
jpeg_set_defaults(&j->cinfo);
jpeg_set_quality(&j->cinfo, qual, TRUE);
if(jpegsub==TJ_GRAYSCALE)
jpeg_set_colorspace(&j->cinfo, JCS_GRAYSCALE);
else
jpeg_set_colorspace(&j->cinfo, JCS_YCbCr);
if(qual>=96) j->cinfo.dct_method=JDCT_ISLOW;
else j->cinfo.dct_method=JDCT_FASTEST;
j->cinfo.comp_info[0].h_samp_factor=hsampfactor[jpegsub];
j->cinfo.comp_info[1].h_samp_factor=1;
j->cinfo.comp_info[2].h_samp_factor=1;
j->cinfo.comp_info[0].v_samp_factor=vsampfactor[jpegsub];
j->cinfo.comp_info[1].v_samp_factor=1;
j->cinfo.comp_info[2].v_samp_factor=1;
j->jdms.next_output_byte = dstbuf;
j->jdms.free_in_buffer = TJBUFSIZE(j->cinfo.image_width, j->cinfo.image_height);
jpeg_start_compress(&j->cinfo, TRUE);
if(flags&TJ_YUV)
{
j_compress_ptr cinfo=&j->cinfo;
int row;
int pw=PAD(width, cinfo->max_h_samp_factor);
int ph=PAD(height, cinfo->max_v_samp_factor);
int cw[MAX_COMPONENTS], ch[MAX_COMPONENTS];
jpeg_component_info *compptr;
JSAMPLE *ptr=dstbuf; unsigned long yuvsize=0;
if((row_pointer=(JSAMPROW *)malloc(sizeof(JSAMPROW)*ph))==NULL)
_throw("Memory allocation failed in tjCompress()");
for(i=0; i<height; i++)
{
if(flags&TJ_BOTTOMUP) row_pointer[i]= &srcbuf[(height-i-1)*pitch];
else row_pointer[i]= &srcbuf[i*pitch];
}
if(height<ph)
for(i=height; i<ph; i++) row_pointer[i]=row_pointer[height-1];
for(i=0; i<cinfo->num_components; i++)
{
compptr=&cinfo->comp_info[i];
_tmpbuf[i]=(JSAMPLE *)malloc(
PAD((compptr->width_in_blocks*cinfo->max_h_samp_factor*DCTSIZE)
/compptr->h_samp_factor, 16) * cinfo->max_v_samp_factor + 16);
if(!_tmpbuf[i]) _throw("Memory allocation failure");
tmpbuf[i]=(JSAMPROW *)malloc(sizeof(JSAMPROW)*cinfo->max_v_samp_factor);
if(!tmpbuf[i]) _throw("Memory allocation failure");
for(row=0; row<cinfo->max_v_samp_factor; row++)
{
unsigned char *_tmpbuf_aligned=
(unsigned char *)PAD((size_t)_tmpbuf[i], 16);
tmpbuf[i][row]=&_tmpbuf_aligned[
PAD((compptr->width_in_blocks*cinfo->max_h_samp_factor*DCTSIZE)
/compptr->h_samp_factor, 16) * row];
}
_tmpbuf2[i]=(JSAMPLE *)malloc(PAD(compptr->width_in_blocks*DCTSIZE, 16)
* compptr->v_samp_factor + 16);
if(!_tmpbuf2[i]) _throw("Memory allocation failure");
tmpbuf2[i]=(JSAMPROW *)malloc(sizeof(JSAMPROW)*compptr->v_samp_factor);
if(!tmpbuf2[i]) _throw("Memory allocation failure");
for(row=0; row<compptr->v_samp_factor; row++)
{
unsigned char *_tmpbuf2_aligned=
(unsigned char *)PAD((size_t)_tmpbuf2[i], 16);
tmpbuf2[i][row]=&_tmpbuf2_aligned[
PAD(compptr->width_in_blocks*DCTSIZE, 16) * row];
}
cw[i]=pw*compptr->h_samp_factor/cinfo->max_h_samp_factor;
ch[i]=ph*compptr->v_samp_factor/cinfo->max_v_samp_factor;
outbuf[i]=(JSAMPROW *)malloc(sizeof(JSAMPROW)*ch[i]);
if(!outbuf[i]) _throw("Memory allocation failure");
for(row=0; row<ch[i]; row++)
{
outbuf[i][row]=ptr;
ptr+=PAD(cw[i], 4);
}
}
yuvsize=(unsigned long)(ptr-dstbuf);
for(row=0; row<ph; row+=cinfo->max_v_samp_factor)
{
(*cinfo->cconvert->color_convert)(cinfo, &row_pointer[row], tmpbuf,
0, cinfo->max_v_samp_factor);
(cinfo->downsample->downsample)(cinfo, tmpbuf, 0, tmpbuf2, 0);
for(i=0, compptr=cinfo->comp_info; i<cinfo->num_components;
i++, compptr++)
jcopy_sample_rows(tmpbuf2[i], 0, outbuf[i],
row*compptr->v_samp_factor/cinfo->max_v_samp_factor,
compptr->v_samp_factor, cw[i]);
}
*size=yuvsize;
cinfo->next_scanline+=height;
}
else
{
if((row_pointer=(JSAMPROW *)malloc(sizeof(JSAMPROW)*height))==NULL)
_throw("Memory allocation failed in tjCompress()");
for(i=0; i<height; i++)
{
if(flags&TJ_BOTTOMUP) row_pointer[i]= &srcbuf[(height-i-1)*pitch];
else row_pointer[i]= &srcbuf[i*pitch];
}
while(j->cinfo.next_scanline<j->cinfo.image_height)
{
jpeg_write_scanlines(&j->cinfo, &row_pointer[j->cinfo.next_scanline],
j->cinfo.image_height-j->cinfo.next_scanline);
}
}
jpeg_finish_compress(&j->cinfo);
if(!(flags&TJ_YUV))
*size=TJBUFSIZE(j->cinfo.image_width, j->cinfo.image_height)
-(unsigned long)(j->jdms.free_in_buffer);
bailout:
if(j->cinfo.global_state>CSTATE_START) jpeg_abort_compress(&j->cinfo);
if(row_pointer) free(row_pointer);
for(i=0; i<MAX_COMPONENTS; i++)
{
if(tmpbuf[i]!=NULL) free(tmpbuf[i]);
if(_tmpbuf[i]!=NULL) free(_tmpbuf[i]);
if(tmpbuf2[i]!=NULL) free(tmpbuf2[i]);
if(_tmpbuf2[i]!=NULL) free(_tmpbuf2[i]);
if(outbuf[i]!=NULL) free(outbuf[i]);
}
return retval;
}