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// Copyright (C) 1999-2018
// Smithsonian Astrophysical Observatory, Cambridge, MA, USA
// For conditions of distribution and use, see copyright notice in "copyright"
#include <iostream>
#include <sstream>
#include <iomanip>
using namespace std;
#include <tk.h>
#include "photo.h"
FitsPhoto::FitsPhoto(Tcl_Interp* interp, const char* ph)
{
// reset
valid_ = 0;
if (*ph == '\0') {
Tcl_AppendResult(interp, "bad image name ", NULL);
return;
}
Tk_PhotoHandle photo = Tk_FindPhoto(interp, ph);
if (!photo) {
Tcl_AppendResult(interp, "bad image handle ", NULL);
return;
}
Tk_PhotoImageBlock block;
if (!Tk_PhotoGetImage(photo,&block)) {
Tcl_AppendResult(interp, "bad image block ", NULL);
return;
}
int width =0;
int height =0;
Tk_PhotoGetSize(photo, &width, &height);
// new header
head_ = new FitsHead(width, height, 1, 8);
if (!head_->isValid())
return;
size_t size = (size_t)width*height;
unsigned char* dest = new unsigned char[size];
data_ = dest;
dataSize_ = size;
dataSkip_ = 0;
unsigned char* src = block.pixelPtr;
for (int jj=height-1; jj>=0; jj--)
for (int ii=0; ii<width; ii++) {
int pp = (jj*width+ii)*block.pixelSize;
unsigned char rr = src[pp+block.offset[0]];
unsigned char gg = src[pp+block.offset[1]];
unsigned char bb = src[pp+block.offset[2]];
//unsigned char vv = (rr+gg+bb)/3.;
//unsigned char vv = .2126*rr + .7152*gg + .0722*bb;
// must round
unsigned char vv = (.299*rr + .587*gg + .114*bb)+.5;
*dest++ = vv;
}
// made it this far, must be valid
byteswap_ = 0;
endian_ = lsb() ? LITTLE : BIG;
valid_ = 1;
}
FitsPhoto::~FitsPhoto()
{
if (data_)
delete [] (unsigned char*)data_;
}
FitsPhotoCube::FitsPhotoCube(Tcl_Interp* interp, const char* ph)
{
// reset
valid_ = 0;
if (*ph == '\0') {
Tcl_AppendResult(interp, "bad image name ", NULL);
return;
}
Tk_PhotoHandle photo = Tk_FindPhoto(interp, ph);
if (!photo) {
Tcl_AppendResult(interp, "bad image handle ", NULL);
return;
}
Tk_PhotoImageBlock block;
if (!Tk_PhotoGetImage(photo,&block)) {
Tcl_AppendResult(interp, "bad image block ", NULL);
return;
}
int width =0;
int height =0;
int depth =3;
Tk_PhotoGetSize(photo, &width, &height);
// new header
head_ = new FitsHead(width, height, depth, 8);
if (!head_->isValid())
return;
size_t size = (size_t)width*height*depth;
unsigned char* dest = new unsigned char[size];
data_ = dest;
dataSize_ = size;
dataSkip_ = 0;
unsigned char* src = block.pixelPtr;
for (int kk=0; kk<depth; kk++) {
for (int jj=height-1; jj>=0; jj--) {
for (int ii=0; ii<width; ii++) {
int pp = (jj*width+ii)*block.pixelSize;
*dest++ = src[pp+block.offset[kk]];
}
}
}
// made it this far, must be valid
byteswap_ = 0;
endian_ = lsb() ? LITTLE : BIG;
valid_ = 1;
}
FitsPhotoCube::~FitsPhotoCube()
{
if (data_)
delete [] (unsigned char*)data_;
}
FitsPhotoCubeNext::FitsPhotoCubeNext(FitsFile* prev)
{
primary_ = prev->primary();
managePrimary_ = 0;
head_ = prev->head();
manageHead_ = 0;
FitsImageHDU* hdu = (FitsImageHDU*)head_->hdu();
data_ = (char*)prev->data() + hdu->imgbytes();
dataSize_ = 0;
dataSkip_ = 0;
ext_ = prev->ext();
inherit_ = head_->inherit();
byteswap_ = prev->byteswap();
endian_ = prev->endian();
valid_ = 1;
return;
}
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