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include <imhdr.h>
include <mach.h>
include "../lib/allstardef.h"
include "../lib/daophotdef.h"
define FUDGE 1.2 # fudge factor for memory allocation
# DP_CACHE -- Determine whether it is possible to store all the data
# in memory or not.
procedure dp_cache (dao, im, subim, cache)
pointer dao # pointer to the daophot structure
pointer im # pointer to the input image
pointer subim # pointer to the output subtracted image
int cache # cache the data ?
int npix, req_mem1, req_mem2, req_mem3, old_mem, max_mem
pointer sp, temp, allstar, data, weights, subt
int sizeof(), begmem()
pointer immap()
errchk begmem(), calloc()
begin
# Allocate some working memory.
call smark (sp)
call salloc (temp, SZ_FNAME, TY_CHAR)
# Define the allstar pointer.
allstar = DP_ALLSTAR(dao)
# Store the old working set size.
DP_SZOLDCACHE(allstar) = begmem (0, old_mem, max_mem)
# Figure out the memory requirements.
npix = IM_LEN(im,1) * IM_LEN(im,2)
req_mem1 = FUDGE * npix * sizeof (TY_REAL)
req_mem2 = req_mem1 + req_mem1
req_mem3 = req_mem2 + req_mem1
# Initialize.
DP_CACHE (allstar,A_DCOPY) = NO
DP_CACHE (allstar,A_SUBT) = NO
DP_CACHE (allstar,A_WEIGHT) = NO
DP_DBUF(allstar) = NULL
DP_SBUF(allstar) = NULL
DP_WBUF(allstar) = NULL
# Use IRAF images as temporary storage space.
if (cache == NO) {
# The output subtracted image.
DP_DATA (allstar) = subim
# The scratch image.
call mktemp ("subt", Memc[temp], SZ_FNAME)
DP_SUBT (allstar) = immap (Memc[temp], NEW_COPY, im)
IM_NDIM(DP_SUBT(allstar)) = 2
IM_PIXTYPE(DP_SUBT(allstar)) = TY_REAL
# The weights image.
call mktemp ("wt", Memc[temp], SZ_FNAME)
DP_WEIGHTS (allstar) = immap (Memc[temp], NEW_COPY, im)
IM_NDIM(DP_WEIGHTS(allstar)) = 2
IM_PIXTYPE(DP_WEIGHTS(allstar)) = TY_REAL
# Set the type of caching to be used.
DP_ISCACHE(allstar) = NO
DP_ALLCACHE(allstar) = NO
} else {
# Is the memory available.
if (old_mem >= req_mem3) {
DP_CACHE(allstar,A_DCOPY) = YES
DP_CACHE(allstar,A_WEIGHT) = YES
DP_CACHE (allstar,A_SUBT) = YES
} else {
if (begmem (req_mem1, old_mem, max_mem) >= req_mem1)
DP_CACHE(allstar,A_SUBT) = YES
if (begmem (req_mem2, old_mem, max_mem) >= req_mem2)
DP_CACHE(allstar,A_WEIGHT) = YES
if (begmem (req_mem3, old_mem, max_mem) >= req_mem3)
DP_CACHE(allstar,A_DCOPY) = YES
}
# Allocate space for the scratch image.
subt = NULL
if (DP_CACHE(allstar, A_SUBT) == YES) {
iferr {
call calloc (subt, npix, TY_REAL)
} then {
if (subt != NULL)
call mfree (subt, TY_REAL)
call mktemp ("subt", Memc[temp], SZ_FNAME)
subt = immap (Memc[temp], NEW_COPY, im)
IM_NDIM(subt) = 2
IM_PIXTYPE(subt) = TY_REAL
DP_SUBT(allstar) = subt
DP_CACHE(allstar,A_SUBT) = NO
} else
DP_SUBT(allstar) = subt
} else {
call mktemp ("subt", Memc[temp], SZ_FNAME)
subt = immap (Memc[temp], NEW_COPY, im)
IM_NDIM(subt) = 2
IM_PIXTYPE(subt) = TY_REAL
DP_SUBT(allstar) = subt
}
# Allocate space for the weights image.
weights = NULL
if (DP_CACHE(allstar, A_WEIGHT) == YES) {
iferr {
call calloc (weights, npix, TY_REAL)
} then {
if (weights != NULL)
call mfree (weights, TY_REAL)
call mktemp ("wt", Memc[temp], SZ_FNAME)
weights = immap (Memc[temp], NEW_COPY, im)
IM_NDIM(weights) = 2
IM_PIXTYPE(weights) = TY_REAL
DP_WEIGHTS(allstar) = weights
DP_CACHE(allstar,A_WEIGHT) = NO
} else
DP_WEIGHTS(allstar) = weights
} else {
call mktemp ("wt", Memc[temp], SZ_FNAME)
weights = immap (Memc[temp], NEW_COPY, im)
IM_NDIM(weights) = 2
IM_PIXTYPE(weights) = TY_REAL
DP_WEIGHTS(allstar) = weights
}
# Allocate space for the output subtracted image.
data = NULL
if (DP_CACHE(allstar, A_DCOPY) == YES) {
iferr {
call calloc (data, npix, TY_REAL)
} then {
if (data != NULL)
call mfree (data, TY_REAL)
DP_DATA(allstar) = subim
DP_CACHE(allstar,A_DCOPY) = NO
} else {
DP_DATA(allstar) = data
}
} else
DP_DATA(allstar) = subim
# Set the type of caching to be used.
if (DP_CACHE(allstar,A_DCOPY) == NO && DP_CACHE(allstar,A_SUBT) ==
NO && DP_CACHE(allstar,A_WEIGHT) == NO) {
DP_ISCACHE(allstar) = NO
DP_ALLCACHE(allstar) = NO
} else if (DP_CACHE(allstar,A_DCOPY) == YES && DP_CACHE(allstar,
A_SUBT) == YES && DP_CACHE(allstar,A_WEIGHT) == YES) {
DP_ISCACHE(allstar) = YES
DP_ALLCACHE(allstar) = YES
} else {
DP_ISCACHE(allstar) = YES
DP_ALLCACHE(allstar) = NO
}
}
call sfree (sp)
end
# DP_UNCACHE -- Release all the stored memory.
procedure dp_uncache (dao, subim, savesub)
pointer dao # pointer to the daophot strucuture
pointer subim # pointer to the output subtracted image
int savesub # save the subtracted image ?
int j, ncol, nline
pointer sp, imname, v, data, buf, allstar
pointer impnlr()
begin
# Allocate working space.
call smark (sp)
call salloc (imname, SZ_FNAME, TY_CHAR)
call salloc (v, IM_MAXDIM, TY_LONG)
# Define the allstar pointer.
allstar = DP_ALLSTAR(dao)
ncol = IM_LEN(subim,1)
nline = IM_LEN(subim,2)
# Write out the subtracted image.
if (DP_CACHE(allstar,A_DCOPY) == YES && savesub == YES) {
data = DP_DBUF(allstar)
call amovkl (long(1), Meml[v], IM_MAXDIM)
do j = 1, nline {
if (impnlr (subim, buf, Meml[v]) != EOF)
call amovr (Memr[data], Memr[buf], ncol)
data = data + ncol
}
}
DP_DATA(allstar) = NULL
# Release any memory used by the subtracted image.
if (DP_DBUF(allstar) != NULL)
call mfree (DP_DBUF(allstar), TY_REAL)
DP_DBUF(allstar) = NULL
# Delete the scratch image if any.
if (DP_CACHE(allstar,A_SUBT) == NO) {
call strcpy (IM_HDRFILE(DP_SUBT(allstar)), Memc[imname], SZ_FNAME)
call imunmap (DP_SUBT(allstar))
call imdelete (Memc[imname])
}
DP_SUBT(allstar) = NULL
# Release any memory used by the scratch image.
if (DP_SBUF(allstar) != NULL)
call mfree (DP_SBUF(allstar), TY_REAL)
DP_SBUF(allstar) = NULL
# Delete the weights image if any.
if (DP_CACHE(allstar,A_WEIGHT) == NO) {
call strcpy (IM_HDRFILE(DP_WEIGHTS(allstar)), Memc[imname],
SZ_FNAME)
call imunmap (DP_WEIGHTS(allstar))
call imdelete (Memc[imname])
}
DP_WEIGHTS(allstar) = NULL
# Release any memory used by the weights buffer.
if (DP_WBUF(allstar) != NULL)
call mfree (DP_WBUF(allstar), TY_REAL)
DP_WBUF(allstar) = NULL
# Reset the working set size to the previous value.
call fixmem (DP_SZOLDCACHE(allstar))
call sfree (sp)
end
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