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#include "pow.h"
void PowCreateImage(char *image_name, char *data_name, int *xoffset,
int *yoffset, int *width, int *height, double *xorigin,
double *xinc, double *yorigin, double *yinc, char *xunits,
char *yunits, char *zunits, int *status) {
/* xinc or yinc == 0 will mean count by integers */
PowImage *image_instance;
PowData *dataptr;
#if !(defined(__WIN32__) || defined(macintosh))
Tk_PictHandle pict_image_handle;
Tk_PictImageBlock pict_block;
PictMaster *masterPtr;
#endif
Tk_PhotoHandle photo_image_handle;
Tk_PhotoImageBlock photo_block;
Tcl_HashEntry *entry_ptr;
int new = 0;
char *str_ptr;
int pseudoImages;
double min,max;
char smin[30];
char smax[30];
double datum;
int i, wcsStatus;
const char *WCSstring;
char powWCS[7]="powWCS";
Tcl_GetInt(interp,Tcl_GetVar(interp,"powPseudoImages",TCL_GLOBAL_ONLY),
&pseudoImages);
entry_ptr = Tcl_CreateHashEntry(&PowImageTable, image_name, &new);
if (!new) {
/*
fprintf(stdout, "Reusing image name: %s\n", image_name);
*/
#ifdef DEBUG
printf("Reusing image name: %s",image_name);
#endif
#if !(defined(__WIN32__) || defined(macintosh))
/* zero out the data ptr field so VISU won't throw away our data */
/* when you reuse an image name, VISU calls ImgPictDelete on it */
/* this frees the data pointer. We don't want that.... */
if( pseudoImages ) {
masterPtr = (PictMaster *)Tk_FindPict(image_name);
if ( (unsigned char*)masterPtr->data == masterPtr->bytedata) {
masterPtr->bytedata = NULL;
}
masterPtr->data = NULL;
}
#endif
}
image_instance = (PowImage *) ckalloc(sizeof(PowImage));
if(image_instance == NULL) {
*status = TCL_ERROR;
fprintf(stderr, "Couldn't malloc image structure space");
Tcl_DeleteHashEntry(entry_ptr);
return;
}
Tcl_SetHashValue( entry_ptr, image_instance);
str_ptr = ckalloc(strlen(image_name)+1);
strncpy(str_ptr,image_name,strlen(image_name)+1);
image_instance->image_name = str_ptr;
image_instance->xoffset = *xoffset;
image_instance->yoffset = *yoffset;
image_instance->width = *width;
image_instance->height = *height;
image_instance->xorigin = *xorigin;
image_instance->xinc = *xinc;
image_instance->yorigin = *yorigin;
image_instance->yinc = *yinc;
str_ptr = ckalloc(strlen(xunits)+1);
strncpy(str_ptr,xunits,strlen(xunits)+1);
image_instance->xunits = str_ptr;
str_ptr = ckalloc(strlen(yunits)+1);
strncpy(str_ptr,yunits,strlen(yunits)+1);
image_instance->yunits = str_ptr;
str_ptr = ckalloc(strlen(zunits)+1);
strncpy(str_ptr,zunits,strlen(zunits)+1);
image_instance->zunits = str_ptr;
/* Now set up the image */
if (pseudoImages != 0) {
#if !(defined(__WIN32__) || defined(macintosh))
/* use Pict widget (Visu) */
if (Tcl_VarEval(interp,"image create pict ",image_instance->image_name,(char *) NULL) == TCL_ERROR) {
*status = TCL_ERROR;
fprintf(stderr, "%s\n", Tcl_GetStringResult(interp));
Tcl_DeleteHashEntry(entry_ptr);
return;
}
pict_image_handle = Tk_FindPict(image_instance->image_name);
if(pict_image_handle == NULL) {
*status = TCL_ERROR;
fprintf(stderr, "%s\n", Tcl_GetStringResult(interp));
Tcl_DeleteHashEntry(entry_ptr);
return;
}
image_instance->image_handle = (void *) pict_image_handle;
#else
fprintf(stderr,"You should not see this. Pict images disabled in Win32.\n");
return;
#endif /*__WIN32__ || macintosh*/
} else {
/* use Photo widget */
if (Tcl_VarEval(interp,"image create photo ",image_instance->image_name,(char *) NULL) == TCL_ERROR) {
*status = TCL_ERROR;
fprintf(stderr, "%s\n", Tcl_GetStringResult(interp));
Tcl_DeleteHashEntry(entry_ptr);
return;
}
photo_image_handle = Tk_FindPhoto(interp,image_instance->image_name);
if(photo_image_handle == NULL) {
*status = TCL_ERROR;
fprintf(stderr, "%s\n", Tcl_GetStringResult(interp));
Tcl_DeleteHashEntry(entry_ptr);
return;
}
image_instance->image_handle = (void *) photo_image_handle;
}
/* Get the data address out of the hash table */
entry_ptr = Tcl_FindHashEntry (&PowDataTable, data_name);
if(entry_ptr == NULL) {
*status = TCL_ERROR;
fprintf(stderr, "%s\n", Tcl_GetStringResult(interp));
Tcl_DeleteHashEntry(entry_ptr);
return;
}
dataptr = (PowData *) Tcl_GetHashValue(entry_ptr);
/*Setup displayed min and max stuff */
min = DBL_MAX;
max = -DBL_MAX;
for (i = 0; i < image_instance->width * image_instance->height; i++) {
datum = PowExtractDatum(dataptr,i);
if (datum != DBL_MAX) {
min = (datum < min) ? datum : min;
max = (datum > max) ? datum : max;
}
}
if( max==-DBL_MAX ) min=max=0.0;
sprintf(smin,"%.17lg",min);
sprintf(smax,"%.17lg",max);
Tcl_SetVar2(interp,"powRBmin",image_name,smin,TCL_GLOBAL_ONLY);
Tcl_SetVar2(interp,"powRBmax",image_name,smax,TCL_GLOBAL_ONLY);
image_instance->dataptr = dataptr;
/* notice that the "offsets" are not implemented here yet*/
/* this will require some serious tweaking to pixelPtr and skip fields */
if (pseudoImages != 0) {
#if !(defined(__WIN32__) || defined(macintosh))
/*Pict*/
pict_block.datatype = dataptr->data_type;
pict_block.pixelPtr = (unsigned char *) dataptr->data_array;
pict_block.width = image_instance->width;
pict_block.height = image_instance->height;
pict_block.pixelSize = pixelSizes[dataptr->data_type];
pict_block.pitch = pict_block.pixelSize;
pict_block.skip = 0;
pict_block.copy = NO_COPY;
Tk_PictExpand(pict_image_handle,image_instance->width,image_instance->height);
Tk_PictPutBlock(pict_image_handle,&pict_block,0,0,image_instance->width,image_instance->height);
#else
fprintf(stderr,"You should not see this\n");
return;
#endif /*__WIN32__ || macintosh*/
} else {
PowDitherToPhoto(image_instance,&photo_block,min,max);
photo_block.pixelSize = 3;
photo_block.width = image_instance->width;
photo_block.height = image_instance->height;
photo_block.pitch = image_instance->width * 3;
photo_block.offset[0] = 0;
photo_block.offset[1] = 1;
photo_block.offset[2] = 2;
Tk_PhotoExpand(interp, photo_image_handle,
image_instance->width, image_instance->height);
Tk_PhotoPutBlock(interp, photo_image_handle, &photo_block, 0, 0,
image_instance->width, image_instance->height, TK_PHOTO_COMPOSITE_SET);
ckfree(photo_block.pixelPtr);
}
/* Call WCS init procedure if applicable */
wcsStatus = TCL_ERROR;
WCSstring = Tcl_GetVar2(interp,powWCS,image_name,TCL_GLOBAL_ONLY);
if( (WCSstring != NULL) && strcmp(WCSstring,"") ) {
wcsStatus = Tcl_VarEval(interp, "powWCSInitImage ", image_name, " ",
WCSstring, (char *) NULL);
}
if( wcsStatus == TCL_ERROR ) {
image_instance->xorigin -= 0.5*image_instance->xinc;
image_instance->yorigin -= 0.5*image_instance->yinc;
image_instance->xotherend = image_instance->xorigin +
image_instance->width*image_instance->xinc;
image_instance->yotherend = image_instance->yorigin +
image_instance->height*image_instance->yinc;
memset(image_instance->WCS.type, '\0', 6);
image_instance->WCS.nAxis = 2;
image_instance->WCS.refVal[0] = image_instance->xorigin;
image_instance->WCS.refVal[1] = image_instance->yorigin;
image_instance->WCS.refPix[0] = -0.5;
image_instance->WCS.refPix[1] = -0.5;
image_instance->WCS.cdFrwd[0][0] = image_instance->xinc;
image_instance->WCS.cdFrwd[1][1] = image_instance->yinc;
image_instance->WCS.cdFrwd[0][1] = 0.0;
image_instance->WCS.cdFrwd[1][0] = 0.0;
image_instance->WCS.cdRvrs[0][0] = 1.0/image_instance->xinc;
image_instance->WCS.cdRvrs[1][1] = 1.0/image_instance->yinc;
image_instance->WCS.cdRvrs[0][1] = 0.0;
image_instance->WCS.cdRvrs[1][0] = 0.0;
}
return;
}
void PowDestroyImage(char *image_name, int *status) {
Tcl_HashEntry *entry_ptr;
char errormsg[1024];
PowImage *image_ptr;
entry_ptr = Tcl_FindHashEntry(&PowImageTable,image_name);
if (entry_ptr == NULL) {
*status = TCL_ERROR;
sprintf(errormsg,"Can't find POWImage Object %s to destroy",image_name);
Tcl_SetResult(interp,errormsg,TCL_VOLATILE);
return;
}
image_ptr = (PowImage *)Tcl_GetHashValue(entry_ptr);
/*Delete the entry from the master POWData Hash*/
Tcl_DeleteHashEntry(entry_ptr);
/*free the PowImage memory itself and the string holding the name,
although this is small change*/
ckfree(image_ptr->image_name);
ckfree(image_ptr->xunits);
ckfree(image_ptr->yunits);
ckfree(image_ptr->zunits);
ckfree((char*)image_ptr);
return;
}
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