Initial commit

1 files changed, 67 insertions, 0 deletions

diff --git a/pkg/images/tv/iis/iism70/iislut.x b/pkg/images/tv/iis/iism70/iislut.x
new file mode 100644
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+++ b/pkg/images/tv/iis/iism70/iislut.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include <mach.h>
+include "iis.h"
+include "../lib/ids.h"
+
+define	LUT_LMAX	255
+
+# IISLUT -- Read and Write look up table.
+# NOTE the ASYMMETRY ... written data is derived from end
+# points, but read data is the full array (see zsnapinit,
+# for instance, for read usage.)
+
+procedure iislut (rw, frame, color, offset, n, data)
+
+short	rw			# read or write
+short	frame[ARB]		# frame array
+short	color[ARB]		# color array
+short	offset			# offset into lut
+short	n			# number of data values
+short	data[ARB]		# the data
+
+int	command,len,x,y,z,t
+short	iispack()
+int	mapcolor()
+pointer	sp, ldata
+
+include "iis.com"
+
+begin
+	z = mapcolor (color)
+	t = iispack(frame)
+	if (t == GRCHAN) {
+	    return
+	}
+
+	if ( rw == IDS_WRITE) {
+	    if ( n < 4)
+	        return
+	    command = IWRITE+VRETRACE
+
+	    # data space for manipulating lut information
+
+	    call smark (sp)
+	    call salloc (ldata, LEN_LUT, TY_SHORT)
+	    call aclrs (Mems[ldata], LEN_LUT)
+
+	    # We could have negative lut values, but don't bother for now
+	    call idslfill (data, int(n), Mems[ldata], LEN_LUT, 0, LUT_LMAX)
+
+	    len = LEN_LUT
+	} else {
+	    len = n
+	    command = IREAD+VRETRACE
+	}
+
+	x = ADVXONTC
+	y = 0
+
+	call iishdr (command, len, LUT, x, y, z, t)
+
+	if ( rw == IDS_WRITE) {
+	    call iisio (Mems[ldata], len * SZB_CHAR)
+	    call sfree (sp)
+	} else
+	    call iisio (data, len * SZB_CHAR)
+end