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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 "fitsimage.h"
#include "block.h"
#include "context.h"
void* blockproc(void* tt);
void FitsImage::block()
{
if (DebugPerf)
cerr << "FitsImage::block()" << endl;
if (manageBlock_) {
if (block_)
delete block_;
if (blockdata_)
delete blockdata_;
}
manageBlock_ =0;
block_ = base_;
blockdata_ = basedata_;
if (manageAnalysis_) {
if (analysis_)
delete analysis_;
if (analysisdata_)
delete analysisdata_;
}
manageAnalysis_ =0;
Vector blockFactor = context_->blockFactor();
if (blockFactor[0] != 1 && blockFactor[1] != 1) {
block_ = new FitsBlock(base_, blockFactor);
if (block_->isValid()) {
manageBlock_ =1;
switch (block_->head()->bitpix()) {
case -64:
blockdata_ = new FitsDatam<double>(block_, interp_);
break;
default:
blockdata_ = new FitsDatam<float>(block_, interp_);
break;
}
t_block_arg* targ = new t_block_arg;
targ->base = base_;
targ->basedata = basedata_;
targ->block = block_;
targ->blockFactor = blockFactor;
blockproc(targ);
}
else {
delete block_;
block_ = base_;
return;
}
}
analysis_ = block_;
analysisdata_ = blockdata_;
image_ = analysis_;
data_ = analysisdata_;
resetWCS();
processKeywordsPhysical();
processKeywordsParams();
}
void FitsImage::block(pthread_t* thread)
{
if (DebugPerf)
cerr << "FitsImage::block(thread)" << endl;
if (manageBlock_) {
if (block_)
delete block_;
if (blockdata_)
delete blockdata_;
}
manageBlock_ =0;
block_ = base_;
blockdata_ = basedata_;
if (manageAnalysis_) {
if (analysis_)
delete analysis_;
if (analysisdata_)
delete analysisdata_;
}
manageAnalysis_ =0;
Vector blockFactor = context_->blockFactor();
if (blockFactor[0] != 1 && blockFactor[1] != 1) {
block_ = new FitsBlock(base_, blockFactor);
if (block_->isValid()) {
manageBlock_ =1;
switch (block_->head()->bitpix()) {
case -64:
blockdata_ = new FitsDatam<double>(block_, interp_);
break;
default:
blockdata_ = new FitsDatam<float>(block_, interp_);
break;
}
t_block_arg* targ = new t_block_arg;
targ->base = base_;
targ->basedata = basedata_;
targ->block = block_;
targ->blockFactor = blockFactor;
int result = pthread_create(thread, NULL, blockproc, targ);
if (result)
internalError("Unable to Create Thread");
}
else {
delete block_;
block_ = base_;
return;
}
}
analysis_ = block_;
analysisdata_ = blockdata_;
image_ = analysis_;
data_ = analysisdata_;
resetWCS();
processKeywordsPhysical();
processKeywordsParams();
}
void* blockproc(void* tt)
{
t_block_arg* targ = (t_block_arg*)tt;
FitsFile* base = targ->base;
FitsData* basedata = targ->basedata;
FitsFile* block = targ->block;
Vector blockFactor = targ->blockFactor;
Matrix mm = Scale(1/blockFactor[0],1/blockFactor[1]);
int srcw = base->head()->naxis(0);
int srch = base->head()->naxis(1);
int ww = block->head()->naxis(0);
int hh = block->head()->naxis(1);
switch (block->head()->bitpix()) {
case -64:
{
double* dest=(double*)block->data();
for (int jj=0; jj<srch; jj++) {
for (int ii=0; ii<srcw; ii++) {
Vector cc = Vector(ii,jj)*mm;
if (cc[0]>=0 && cc[0]<ww && cc[1]>=0 && cc[1]<hh) {
double vv = basedata->getValueDouble(jj*srcw+ii);
*(dest+(int(cc[1])*ww + int(cc[0]))) += vv;
}
}
}
}
break;
default:
{
float* dest=(float*)block->data();
for (int jj=0; jj<srch; jj++) {
for (int ii=0; ii<srcw; ii++) {
Vector cc = Vector(ii,jj)*mm;
if (cc[0]>=0 && cc[0]<ww && cc[1]>=0 && cc[1]<hh) {
float vv = basedata->getValueFloat(jj*srcw+ii);
*(dest+(int(cc[1])*ww + int(cc[0]))) += vv;
}
}
}
}
break;
}
return NULL;
}
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