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#include <stdio.h>
#include <stdlib.h>
#include "cctk.h"
#include "cctk_Parameters.h"
#include "Hyperslab.h"
#include "IOJpeg.h"
static char *rcsid = "$Header$";
CCTK_FILEVERSION(CactusIO_IOJpeg_DumpVar_c)
static int IOJpeg_Output (cGH *GH,
int vindex,
CCTK_REAL *data,
int sdim,
int *hsize,
FILE *fid);
int IOJpeg_DumpVar (cGH *GH,
int vindex,
int timelevel,
IOJpegGeo_t *geo,
FILE *fid)
{
DECLARE_CCTK_PARAMETERS
void *data=NULL;
int *hsizes, slabstart[SLABSKEL_MAXDIM];
int idim, vdim;
int sdir[3] = {0,0,0};
/* Allocate buffer to hold actual slab sizes */
hsizes = (int*)malloc(geo->sdim*sizeof(int));
vdim= geo->vdim;
/* TEMPORARY FIX DUE TO INCONSISTENT DIR SPECIFICATION */
/* direction vector of 1d line in 3d volume */
if (geo->sdim==1) {
sdir[0] = (geo->direction[0]==0) ? 1:0;
sdir[1] = (geo->direction[0]==1) ? 1:0;
sdir[2] = (geo->direction[0]==2) ? 1:0;
}
/* norm vector of 2d surface in 3d volume */
else if (geo->sdim==2)
{
sdir[0] = ((geo->direction[0]==1)&&(geo->direction[1]==2)) ? 1:0;
sdir[1] = ((geo->direction[0]==0)&&(geo->direction[1]==2)) ? 1:0;
sdir[2] = ((geo->direction[0]==0)&&(geo->direction[1]==1)) ? 1:0;
}
/* spanning directions for 3d */
else if (geo->sdim==3)
{
sdir[0] = geo->direction[0];
sdir[1] = geo->direction[1];
sdir[2] = geo->direction[2];
}
else
{
char *fullname = CCTK_FullName (vindex);
CCTK_VWarn (1, __LINE__, __FILE__, CCTK_THORNSTRING,
"No 0-dim extraction possible: '%s'", fullname);
free (fullname);
return (-1);
}
/* Get the start indices for the slab from slab_start. */
/* Slab_start from the geo structure is not a true start index, it is currently
used as the intersection point of n surfaces , that's why two entries
have to be set to zero in the case of a surface (one entry for line) FIXME */
for (idim=0;idim<vdim;idim++)
slabstart[idim] = geo->slab_start[idim];
for (idim=0;idim<geo->sdim;idim++)
slabstart[geo->direction[idim]]=0;
/* Data Extraction takes place, data will be gathered onto processor 0
hyperslab data will be in data,
hyperslab sizes: hsizes[SLAB_DIM].
*/
if (Hyperslab_GetHyperslab (GH, 0, vindex, timelevel, geo->sdim, slabstart,
sdir, geo->length, geo->downs,
&data, hsizes) < 0)
{
char *fullname = CCTK_FullName (vindex);
CCTK_VWarn (1, __LINE__, __FILE__, CCTK_THORNSTRING,
"Failed to extract hyperslab for variable '%s'", fullname);
free (fullname);
return (-1);
}
/* Output the hyperslab data */
if (IOJpeg_Output (GH, vindex, data, geo->sdim, hsizes, fid) < 0)
{
char *fullname = CCTK_FullName (vindex);
CCTK_VWarn (1, __LINE__, __FILE__, CCTK_THORNSTRING,
"IOJpeg_Output failed for variable '%s'", fullname);
free (fullname);
return (-1);
}
/* free allocated resources */
if (data)
{
free (data);
}
if (hsizes)
{
free (hsizes);
}
return (0);
}
static int IOJpeg_Output (cGH *GH,
int vindex,
CCTK_REAL *data,
int sdim,
int *hsize,
FILE *fid)
{
DECLARE_CCTK_PARAMETERS
unsigned char *dataout=(unsigned char *)malloc(3*hsize[0]*hsize[1]);
CCTK_REAL min,max;
if (sdim!=2) return(-1);
if (CCTK_Equals(colormap,"custom"))
{
min = colormap_min;
max = colormap_max;
}
else
{
int reduction_handle;
reduction_handle = CCTK_ReductionHandle ("maximum");
CCTK_Reduce (GH, 0, reduction_handle, 1,
CCTK_VARIABLE_REAL,&max, 1, vindex);
reduction_handle = CCTK_ReductionHandle ("minimum");
CCTK_Reduce (GH, 0, reduction_handle, 1,
CCTK_VARIABLE_REAL,&min, 1, vindex);
}
if(fid)
{
AutoColorDataSlice(hsize[0],
hsize[1],
data,
dataout,
min,
max,
colormap_bias,
colormap_factor);
WriteJPEGToFileRGB(hsize[0],
hsize[1],
dataout,
colormap_quality,
fid);
}
free(dataout);
return(1);
}
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