Initial commit

1 files changed, 93 insertions, 0 deletions

diff --git a/lib/imio.h b/lib/imio.h
new file mode 100644
index 00000000..f4698ee2
--- /dev/null
+++ b/lib/imio.h
@@ -0,0 +1,93 @@
+# IMIO.H -- IMIO internal definitions.
+
+define	DEF_PIXTYPE		TY_REAL		# pixel type on disk
+define	DEF_HGMLEN		512		# length of histogram
+define	DEF_COMPRESS		NO		# align lines on blk boundaries
+define	DEF_ADVICE		SEQUENTIAL	# type of access to optimize for
+define	DEF_FIOBUFFRAC		10		# FIO buf as percent of image
+define	DEF_FIOBUFSIZE		262144		# default FIO buffer size
+define	DEF_MAXFIOBUFSIZE	16777216	# "soft" max FIO buffer size
+define	MAX_HGMLEN		2048		# maximum size histogram
+define	IM_MAXSTEP		64		# step size breakpoint
+define	MIN_LENUSERAREA		64000		# user area size (chars)
+define	SZ_UAPAD		5120		# padding at end of UA if copy
+define	SZ_IMNAME		128		# IM_NAME field (prev 79)
+
+define	ENV_BUFSIZE		"IMIO_BUFSIZE"	# envvar for bufsize
+define	ENV_BUFFRAC		"IMIO_BUFFRAC"	# envvar for buffrac
+define	ENV_BUFMAX		"IMIO_BUFMAX"	# envvar for bufmax
+
+define	LOOP_DONE		1		# used by IMLOOP
+define	LOOP_AGAIN		0
+define	IM_READ			0		# used by IMCSSZ
+define	IM_WRITE		1
+
+# The IMIO runtime Image Descriptor Structure.
+
+define	LEN_IMDES		200
+
+define	IM_FILESIZE	Meml[$1]		# size of pixfile
+define	IM_NGET		Meml[$1+1]		# number getpix calls
+define	IM_ACMODE	Memi[$1+2]		# access mode (ro, rw, etc.)
+define	IM_VNBUFS	Memi[$1+3]		# number of in buffers
+define	IM_VCOMPRESS	Memi[$1+4]		# if YES, len[i] == physlen[i]
+define	IM_VADVICE	Memi[$1+5]		# expected type of access
+define	IM_VBUFSIZE	Memi[$1+6]		# recommended FIO buffer size
+define	IM_VBUFFRAC	Memi[$1+7]		# FIO buffer as image fraction
+define	IM_VBUFMAX	Memi[$1+8]		# max FIO buffer size
+define	IM_VCLOSEFD	Memi[$1+9]		# set F_CLOSEFD on pixfile
+define	IM_VNBNDRYPIX	Memi[$1+10]		# npixels of boundary extension
+define	IM_VTYBNDRY	Memi[$1+11]		# type of boundary extension
+define	IM_VFLAGBADPIX	Memi[$1+12]		# flag bad pixels upon input
+define	IM_FLUSH	Memi[$1+13]		# flush outbuf?
+define	IM_UPDATE	Memi[$1+14]		# update header?
+define	IM_FLUSHEPA	Memi[$1+15]		# epa of imfls? routine
+define	IM_IBDES	Memi[$1+16]		# input bufdes
+define	IM_OBDES	Memi[$1+17]		# output bufdes
+define	IM_LASTBDES	Memi[$1+18]		# last buffer accessed
+define	IM_OHDR		Memi[$1+19]		# if newcopy, ptr to old header
+define	IM_NPHYSDIM	Memi[$1+20]		# number of physical dims
+define	IM_SECTUSED	Memi[$1+21]		# image section in use
+define	IM_FAST		Memi[$1+22]		# fast i/o permitted
+define	IM_SWAP		Memi[$1+23]		# byte swapping required
+define	IM_SVMTIME	Meml[$1+24]		# new time of last modify
+define	IM_OOBPIX	Memr[P2R($1+25)]	# value for out of bounds pixels
+define	IM_KERNEL	Memi[$1+26]		# IKI kernel assigned (runtime)
+define	IM_KDES		Memi[$1+27]		# IKI kernel descriptor
+define	IM_HFD		Memi[$1+28]		# header file descriptor
+define	IM_PFD		Memi[$1+29]		# pixel file descriptor
+define	IM_LENHDRMEM	Memi[$1+30]		# descr. length, IM_MAGIC to end
+define	IM_UABLOCKED	Memi[$1+31]		# user area blocked, 80 chars
+define	IM_CLINDEX	Memi[$1+32]		# index of image in cluster
+define	IM_CLSIZE	Memi[$1+33]		# no. images in cluster
+define	IM_PL		Memi[$1+34]		# PL descriptor if mask image
+define	IM_PLREFIM	Memi[$1+35]		# PL reference image if any
+define	IM_PLFLAGS	Memi[$1+36]		# PL mask i/o flags
+			# (extra space)
+define	IM_SVLEN	Meml[$1+$2+40-1]	# save true axis lengths
+define	IM_VMAP		Memi[$1+$2+47-1]	# map section dimensions
+define	IM_VOFF		Meml[$1+$2+54-1]	# section offsets
+define	IM_VSTEP	Memi[$1+$2+61-1]	# section sample step size
+define	IM_NAME		Memc[P2C($1+68)]	# imagefile name
+			# (extra space)
+
+# IM_PLFLAGS bit flags.
+define	PL_ACMODE	mod($1,100B)		# extract access mode
+define	PL_FLAGS	(($1)/100B*100B)	# extract flags bits
+
+define	PL_RLIO		1			# range list i/o desired
+define	PL_FAST		2			# no pixel conversions needed
+define	PL_CLOSEPL	4			# close descriptor at imunmap
+define	PL_BOOL		8			# boolean mask
+
+# Buffer Descriptor Structure
+
+define	LEN_BDES	19
+
+define	BD_BUFPTR	Memi[$1]		# buffer pointer
+define	BD_DTYPE	Memi[$1+1]		# datatype of pixels
+define	BD_NPIX		Memi[$1+2]		# number of pixels in buf
+define	BD_NDIM		Memi[$1+3]		# dimensionality of section
+define	BD_BUFSIZE	Memi[$1+4]		# buffer size, chars
+define	BD_VS		Meml[$1+$2+5-1]		# section start vector
+define	BD_VE		Meml[$1+$2+12-1]	# section end vector