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+# Constants defined in <gl.h>
+
+#**************************************************************************
+#*									  *
+#* 		 Copyright (C) 1984, Silicon Graphics, Inc.		  *
+#*									  *
+#*  These coded instructions, statements, and computer programs  contain  *
+#*  unpublished  proprietary  information of Silicon Graphics, Inc., and  *
+#*  are protected by Federal copyright law.  They  may  not be disclosed  *
+#*  to  third  parties  or copied or duplicated in any form, in whole or  *
+#*  in part, without the prior written consent of Silicon Graphics, Inc.  *
+#*									  *
+#**************************************************************************
+
+# Graphics Libary constants
+
+# Booleans
+TRUE = 1
+FALSE = 0
+
+# maximum X and Y screen coordinates 
+XMAXSCREEN = 1279
+YMAXSCREEN = 1023
+XMAXMEDIUM = 1023		# max for medium res monitor 
+YMAXMEDIUM = 767
+XMAX170 = 645		# max for RS-170 
+YMAX170 = 484
+XMAXPAL = 779		# max for PAL 
+YMAXPAL = 574
+
+# various hardware/software limits 
+ATTRIBSTACKDEPTH = 10
+VPSTACKDEPTH = 8
+MATRIXSTACKDEPTH = 32
+NAMESTACKDEPTH = 1025
+STARTTAG = -2
+ENDTAG = -3
+CPOSX_INVALID = -(2*XMAXSCREEN)
+
+# names for colors in color map loaded by greset 
+BLACK = 0
+RED = 1
+GREEN = 2
+YELLOW = 3
+BLUE = 4
+MAGENTA = 5
+CYAN = 6
+WHITE = 7
+
+# popup colors 
+PUP_CLEAR = 0
+PUP_COLOR = 1
+PUP_BLACK = 2
+PUP_WHITE = 3
+
+# defines for drawmode 
+NORMALDRAW = 0
+PUPDRAW = 1
+OVERDRAW = 2
+UNDERDRAW = 3
+CURSORDRAW = 4
+
+# defines for defpattern 
+PATTERN_16 = 16
+PATTERN_32 = 32
+PATTERN_64 = 64
+
+PATTERN_16_SIZE = 16
+PATTERN_32_SIZE = 64
+PATTERN_64_SIZE = 256
+
+# defines for readsource 
+SRC_AUTO = 0
+SRC_FRONT = 1
+SRC_BACK = 2
+SRC_ZBUFFER = 3
+SRC_PUP = 4
+SRC_OVER = 5
+SRC_UNDER = 6
+SRC_FRAMEGRABBER = 7
+
+# defines for blendfunction 
+BF_ZERO = 0
+BF_ONE = 1
+BF_DC = 2
+BF_SC = 2
+BF_MDC = 3
+BF_MSC = 3
+BF_SA = 4
+BF_MSA = 5
+BF_DA = 6
+BF_MDA = 7
+
+# defines for zfunction 
+ZF_NEVER = 0
+ZF_LESS = 1
+ZF_EQUAL = 2
+ZF_LEQUAL = 3
+ZF_GREATER = 4
+ZF_NOTEQUAL = 5
+ZF_GEQUAL = 6
+ZF_ALWAYS = 7
+
+# defines for zsource 
+ZSRC_DEPTH = 0
+ZSRC_COLOR = 1
+
+# defines for pntsmooth 
+SMP_OFF = 0
+SMP_ON = 1
+
+# defines for linesmooth 
+SML_OFF = 0
+SML_ON = 1
+
+# defines for setpup 
+PUP_NONE = 0
+PUP_GREY = 1
+
+# defines for glcompat 
+GLC_OLDPOLYGON = 0
+GLC_ZRANGEMAP = 1
+
+# defines for curstype 
+C16X1 = 0
+C16X2 = 1
+C32X1 = 2
+C32X2 = 3
+CCROSS = 4
+
+# defines for shademodel 
+FLAT = 0
+GOURAUD = 1
+
+# defines for logicop 
+### LO_ZERO = 0x0
+### LO_AND = 0x1
+### LO_ANDR = 0x2
+### LO_SRC = 0x3
+### LO_ANDI = 0x4
+### LO_DST = 0x5
+### LO_XOR = 0x6
+### LO_OR = 0x7
+### LO_NOR = 0x8
+### LO_XNOR = 0x9
+### LO_NDST = 0xa
+### LO_ORR = 0xb
+### LO_NSRC = 0xc
+### LO_ORI = 0xd
+### LO_NAND = 0xe
+### LO_ONE = 0xf
+
+
+#
+# START defines for getgdesc 
+#
+
+GD_XPMAX = 0
+GD_YPMAX = 1
+GD_XMMAX = 2
+GD_YMMAX = 3
+GD_ZMIN = 4
+GD_ZMAX = 5
+GD_BITS_NORM_SNG_RED = 6
+GD_BITS_NORM_SNG_GREEN = 7
+GD_BITS_NORM_SNG_BLUE = 8
+GD_BITS_NORM_DBL_RED = 9
+GD_BITS_NORM_DBL_GREEN = 10
+GD_BITS_NORM_DBL_BLUE = 11
+GD_BITS_NORM_SNG_CMODE = 12
+GD_BITS_NORM_DBL_CMODE = 13
+GD_BITS_NORM_SNG_MMAP = 14
+GD_BITS_NORM_DBL_MMAP = 15
+GD_BITS_NORM_ZBUFFER = 16
+GD_BITS_OVER_SNG_CMODE = 17
+GD_BITS_UNDR_SNG_CMODE = 18
+GD_BITS_PUP_SNG_CMODE = 19
+GD_BITS_NORM_SNG_ALPHA = 21 
+GD_BITS_NORM_DBL_ALPHA = 22
+GD_BITS_CURSOR = 23
+GD_OVERUNDER_SHARED = 24
+GD_BLEND = 25
+GD_CIFRACT = 26
+GD_CROSSHAIR_CINDEX = 27
+GD_DITHER = 28
+GD_LINESMOOTH_CMODE = 30
+GD_LINESMOOTH_RGB = 31
+GD_LOGICOP = 33
+GD_NSCRNS = 35
+GD_NURBS_ORDER = 36
+GD_NBLINKS = 37
+GD_NVERTEX_POLY = 39
+GD_PATSIZE_64 = 40
+GD_PNTSMOOTH_CMODE = 41
+GD_PNTSMOOTH_RGB = 42
+GD_PUP_TO_OVERUNDER = 43
+GD_READSOURCE = 44
+GD_READSOURCE_ZBUFFER = 48
+GD_STEREO = 50
+GD_SUBPIXEL_LINE = 51
+GD_SUBPIXEL_PNT = 52
+GD_SUBPIXEL_POLY = 53
+GD_TRIMCURVE_ORDER = 54
+GD_WSYS = 55
+GD_ZDRAW_GEOM = 57
+GD_ZDRAW_PIXELS = 58
+GD_SCRNTYPE = 61
+GD_TEXTPORT = 62
+GD_NMMAPS = 63
+GD_FRAMEGRABBER = 64
+GD_TIMERHZ = 66
+GD_DBBOX = 67
+GD_AFUNCTION = 68
+GD_ALPHA_OVERUNDER = 69
+GD_BITS_ACBUF = 70
+GD_BITS_ACBUF_HW = 71
+GD_BITS_STENCIL = 72
+GD_CLIPPLANES = 73
+GD_FOGVERTEX = 74
+GD_LIGHTING_TWOSIDE = 76
+GD_POLYMODE = 77
+GD_POLYSMOOTH = 78
+GD_SCRBOX = 79
+GD_TEXTURE = 80
+
+# return value for inquiries when there is no limit
+GD_NOLIMIT = 2
+
+# return values for GD_WSYS
+GD_WSYS_NONE = 0
+GD_WSYS_4S = 1
+
+# return values for GD_SCRNTYPE
+GD_SCRNTYPE_WM = 0
+GD_SCRNTYPE_NOWM = 1
+
+# 
+# END defines for getgdesc 
+#
+
+
+# 
+# START NURBS interface definitions 
+#
+
+# NURBS Rendering Properties 
+N_PIXEL_TOLERANCE = 1
+N_CULLING = 2
+N_DISPLAY = 3
+N_ERRORCHECKING = 4
+N_SUBDIVISIONS = 5
+N_S_STEPS = 6
+N_T_STEPS = 7
+N_TILES = 8
+
+N_SHADED = 1.0 	
+
+# ---------------------------------------------------------------------------
+# FLAGS FOR NURBS SURFACES AND CURVES 			
+# 
+# Bit: 9876 5432 1 0 
+#     |tttt|nnnn|f|r| :    r - 1 bit = 1 if rational coordinate exists
+# 	               :    f - 1 bit = 1 if rational coordinate is before rest 
+# 	               :              = 0 if rational coordinate is after rest 
+# 	 	       : nnnn - 4 bits for number of coordinates
+# 		       : tttt - 4 bits for type of data (color, position, etc.)
+# 
+# NURBS data type
+# N_T_ST	 	0	 parametric space data
+# N_T_XYZ		1	 model space data
+# 
+# rational or non-rational data and position in memory 
+# N_NONRATIONAL	0	 non-rational data
+# N_RATAFTER		1	 rational data with rat coord after rest
+# N_RATBEFORE		3	 rational data with rat coord before rest
+# 
+# N_MKFLAG(a,b,c) ((a<<6) | (b<<2) | c)
+# 	
+# ---------------------------------------------------------------------------
+# 
+N_ST = 0x8	# N_MKFLAG( N_T_ST, 2, N_NONRATIONAL ) 
+N_STW = 0xd	# N_MKFLAG( N_T_ST, 3, N_RATAFTER ) 
+N_WST = 0xf	# N_MKFLAG( N_T_ST, 3, N_RATBEFORE ) 
+N_XYZ = 0x4c	# N_MKFLAG( N_T_XYZ, 3, N_NONRATIONAL ) 
+N_XYZW = 0x51	# N_MKFLAG( N_T_XYZ, 4, N_RATAFTER ) 
+N_WXYZ = 0x53	# N_MKFLAG( N_T_XYZ, 4, N_RATBEFORE ) 
+
+# 
+# END NURBS interface definitions 
+# 
+
+
+# 
+# START lighting model defines 
+# 
+
+LMNULL = 0.0
+
+# MATRIX modes	
+MSINGLE = 0
+MPROJECTION = 1
+MVIEWING = 2
+
+# LIGHT constants 
+MAXLIGHTS = 8
+MAXRESTRICTIONS = 4
+
+# MATERIAL properties 
+DEFMATERIAL = 0
+EMISSION = 1
+AMBIENT = 2
+DIFFUSE = 3
+SPECULAR = 4
+SHININESS = 5
+COLORINDEXES = 6
+ALPHA = 7
+
+# LIGHT properties 
+DEFLIGHT = 100
+LCOLOR = 101
+POSITION = 102
+
+# LIGHTINGMODEL properties 
+DEFLMODEL = 200
+LOCALVIEWER = 201
+ATTENUATION = 202
+
+# TARGET constants 
+MATERIAL = 1000
+LIGHT0 = 1100
+LIGHT1 = 1101
+LIGHT2 = 1102
+LIGHT3 = 1103
+LIGHT4 = 1104
+LIGHT5 = 1105
+LIGHT6 = 1106
+LIGHT7 = 1107
+LMODEL = 1200
+
+# lmcolor modes 
+LMC_COLOR = 0
+LMC_EMISSION = 1
+LMC_AMBIENT = 2
+LMC_DIFFUSE = 3
+LMC_SPECULAR = 4
+LMC_AD = 5
+LMC_NULL = 6
+
+# 
+# END lighting model defines 
+# 
+
+
+# 
+# START distributed graphics library defines 
+# 
+
+DGLSINK = 0	# sink connection	
+DGLLOCAL = 1	# local connection	
+DGLTSOCKET = 2	# tcp socket connection
+DGL4DDN = 3	# 4DDN (DECnet)	
+
+# 
+# END distributed graphics library defines 
+#