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+--------+-------------------------+-------------------------+--------+--------+
|00000000| 00 08 43 4f 4c 4f 55 52 | 2e 43 00 00 00 00 00 00 |..COLOUR|.C......|
|00000010| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000020| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000030| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000040| 00 54 45 58 54 4d 50 53 | 20 01 00 00 00 00 00 00 |.TEXTMPS| .......|
|00000050| 00 00 00 00 00 11 3e 00 | 00 01 ac a8 7c b4 5c a8 |......>.|....|.\.|
|00000060| 7c b4 5c 00 00 08 00 00 | 00 00 00 00 00 00 00 00 ||.\.....|........|
|00000070| 00 00 00 00 00 00 00 00 | 00 00 81 81 0a aa 00 00 |........|........|
|00000080| 2f 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |/*******|********|
|00000090| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|000000a0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|000000b0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|000000c0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 0d 2a 20 |********|*****.* |
|000000d0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |        |        |
|000000e0| 20 20 63 6f 6c 6f 75 72 | 2e 63 0d 2a 0d 2a 20 20 |  colour|.c.*.*  |
|000000f0| 54 68 69 73 20 6d 6f 64 | 75 6c 65 20 69 6d 70 6c |This mod|ule impl|
|00000100| 65 6d 65 6e 74 73 20 72 | 6f 75 74 69 6e 65 73 20 |ements r|outines |
|00000110| 74 6f 20 6d 61 6e 69 70 | 75 6c 61 74 65 20 63 6f |to manip|ulate co|
|00000120| 6c 6f 75 72 73 2e 0d 2a | 0d 2a 20 20 66 72 6f 6d |lours..*|.*  from|
|00000130| 20 50 65 72 73 69 73 74 | 65 6e 63 65 20 6f 66 20 | Persist|ence of |
|00000140| 56 69 73 69 6f 6e 20 52 | 61 79 74 72 61 63 65 72 |Vision R|aytracer|
|00000150| 0d 2a 20 20 43 6f 70 79 | 72 69 67 68 74 20 31 39 |.*  Copy|right 19|
|00000160| 39 33 20 50 65 72 73 69 | 73 74 65 6e 63 65 20 6f |93 Persi|stence o|
|00000170| 66 20 56 69 73 69 6f 6e | 20 54 65 61 6d 0d 2a 2d |f Vision| Team.*-|
|00000180| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000190| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000001a0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000001b0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000001c0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 0d 2a 20 20 4e 4f |--------|--.*  NO|
|000001d0| 54 49 43 45 3a 20 54 68 | 69 73 20 73 6f 75 72 63 |TICE: Th|is sourc|
|000001e0| 65 20 63 6f 64 65 20 66 | 69 6c 65 20 69 73 20 70 |e code f|ile is p|
|000001f0| 72 6f 76 69 64 65 64 20 | 73 6f 20 74 68 61 74 20 |rovided |so that |
|00000200| 75 73 65 72 73 20 6d 61 | 79 20 65 78 70 65 72 69 |users ma|y experi|
|00000210| 6d 65 6e 74 0d 2a 20 20 | 77 69 74 68 20 65 6e 68 |ment.*  |with enh|
|00000220| 61 6e 63 65 6d 65 6e 74 | 73 20 74 6f 20 50 4f 56 |ancement|s to POV|
|00000230| 2d 52 61 79 20 61 6e 64 | 20 74 6f 20 70 6f 72 74 |-Ray and| to port|
|00000240| 20 74 68 65 20 73 6f 66 | 74 77 61 72 65 20 74 6f | the sof|tware to|
|00000250| 20 70 6c 61 74 66 6f 72 | 6d 73 20 6f 74 68 65 72 | platfor|ms other|
|00000260| 20 0d 2a 20 20 74 68 61 | 6e 20 74 68 6f 73 65 20 | .*  tha|n those |
|00000270| 73 75 70 70 6f 72 74 65 | 64 20 62 79 20 74 68 65 |supporte|d by the|
|00000280| 20 50 4f 56 2d 52 61 79 | 20 54 65 61 6d 2e 20 20 | POV-Ray| Team.  |
|00000290| 54 68 65 72 65 20 61 72 | 65 20 73 74 72 69 63 74 |There ar|e strict|
|000002a0| 20 72 75 6c 65 73 20 75 | 6e 64 65 72 0d 2a 20 20 | rules u|nder.*  |
|000002b0| 77 68 69 63 68 20 79 6f | 75 20 61 72 65 20 70 65 |which yo|u are pe|
|000002c0| 72 6d 69 74 74 65 64 20 | 74 6f 20 75 73 65 20 74 |rmitted |to use t|
|000002d0| 68 69 73 20 66 69 6c 65 | 2e 20 20 54 68 65 20 72 |his file|.  The r|
|000002e0| 75 6c 65 73 20 61 72 65 | 20 69 6e 20 74 68 65 20 |ules are| in the |
|000002f0| 66 69 6c 65 0d 2a 20 20 | 6e 61 6d 65 64 20 50 4f |file.*  |named PO|
|00000300| 56 4c 45 47 41 4c 2e 44 | 4f 43 20 77 68 69 63 68 |VLEGAL.D|OC which|
|00000310| 20 73 68 6f 75 6c 64 20 | 62 65 20 64 69 73 74 72 | should |be distr|
|00000320| 69 62 75 74 65 64 20 77 | 69 74 68 20 74 68 69 73 |ibuted w|ith this|
|00000330| 20 66 69 6c 65 2e 20 49 | 66 20 0d 2a 20 20 50 4f | file. I|f .*  PO|
|00000340| 56 4c 45 47 41 4c 2e 44 | 4f 43 20 69 73 20 6e 6f |VLEGAL.D|OC is no|
|00000350| 74 20 61 76 61 69 6c 61 | 62 6c 65 20 6f 72 20 66 |t availa|ble or f|
|00000360| 6f 72 20 6d 6f 72 65 20 | 69 6e 66 6f 20 70 6c 65 |or more |info ple|
|00000370| 61 73 65 20 63 6f 6e 74 | 61 63 74 20 74 68 65 20 |ase cont|act the |
|00000380| 50 4f 56 2d 52 61 79 0d | 2a 20 20 54 65 61 6d 20 |POV-Ray.|*  Team |
|00000390| 43 6f 6f 72 64 69 6e 61 | 74 6f 72 20 62 79 20 6c |Coordina|tor by l|
|000003a0| 65 61 76 69 6e 67 20 61 | 20 6d 65 73 73 61 67 65 |eaving a| message|
|000003b0| 20 69 6e 20 43 6f 6d 70 | 75 53 65 72 76 65 27 73 | in Comp|uServe's|
|000003c0| 20 47 72 61 70 68 69 63 | 73 20 44 65 76 65 6c 6f | Graphic|s Develo|
|000003d0| 70 65 72 27 73 0d 2a 20 | 20 46 6f 72 75 6d 2e 20 |per's.* | Forum. |
|000003e0| 20 54 68 65 20 6c 61 74 | 65 73 74 20 76 65 72 73 | The lat|est vers|
|000003f0| 69 6f 6e 20 6f 66 20 50 | 4f 56 2d 52 61 79 20 6d |ion of P|OV-Ray m|
|00000400| 61 79 20 62 65 20 66 6f | 75 6e 64 20 74 68 65 72 |ay be fo|und ther|
|00000410| 65 20 61 73 20 77 65 6c | 6c 2e 0d 2a 0d 2a 20 54 |e as wel|l..*.* T|
|00000420| 68 69 73 20 70 72 6f 67 | 72 61 6d 20 69 73 20 62 |his prog|ram is b|
|00000430| 61 73 65 64 20 6f 6e 20 | 74 68 65 20 70 6f 70 75 |ased on |the popu|
|00000440| 6c 61 72 20 44 4b 42 20 | 72 61 79 74 72 61 63 65 |lar DKB |raytrace|
|00000450| 72 20 76 65 72 73 69 6f | 6e 20 32 2e 31 32 2e 0d |r versio|n 2.12..|
|00000460| 2a 20 44 4b 42 54 72 61 | 63 65 20 77 61 73 20 6f |* DKBTra|ce was o|
|00000470| 72 69 67 69 6e 61 6c 6c | 79 20 77 72 69 74 74 65 |riginall|y writte|
|00000480| 6e 20 62 79 20 44 61 76 | 69 64 20 4b 2e 20 42 75 |n by Dav|id K. Bu|
|00000490| 63 6b 2e 0d 2a 20 44 4b | 42 54 72 61 63 65 20 56 |ck..* DK|BTrace V|
|000004a0| 65 72 20 32 2e 30 2d 32 | 2e 31 32 20 77 65 72 65 |er 2.0-2|.12 were|
|000004b0| 20 77 72 69 74 74 65 6e | 20 62 79 20 44 61 76 69 | written| by Davi|
|000004c0| 64 20 4b 2e 20 42 75 63 | 6b 20 26 20 41 61 72 6f |d K. Buc|k & Aaro|
|000004d0| 6e 20 41 2e 20 43 6f 6c | 6c 69 6e 73 2e 0d 2a 0d |n A. Col|lins..*.|
|000004e0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|000004f0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000500| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000510| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00000520| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2f 0d 0d |********|*****/..|
|00000530| 23 69 6e 63 6c 75 64 65 | 20 22 66 72 61 6d 65 2e |#include| "frame.|
|00000540| 68 22 0d 23 69 6e 63 6c | 75 64 65 20 22 76 65 63 |h".#incl|ude "vec|
|00000550| 74 6f 72 2e 68 22 0d 23 | 69 6e 63 6c 75 64 65 20 |tor.h".#|include |
|00000560| 22 70 6f 76 70 72 6f 74 | 6f 2e 68 22 0d 0d 23 64 |"povprot|o.h"..#d|
|00000570| 65 66 69 6e 65 20 46 41 | 42 53 28 78 29 20 28 28 |efine FA|BS(x) ((|
|00000580| 78 29 20 3c 20 30 2e 30 | 20 3f 20 28 30 2e 30 20 |x) < 0.0| ? (0.0 |
|00000590| 2d 20 28 78 29 29 20 3a | 20 28 78 29 29 0d 0d 43 |- (x)) :| (x))..C|
|000005a0| 4f 4c 4f 55 52 5f 4d 41 | 50 5f 45 4e 54 52 59 20 |OLOUR_MA|P_ENTRY |
|000005b0| 2a 42 75 69 6c 64 5f 45 | 6e 74 72 69 65 73 3b 0d |*Build_E|ntries;.|
|000005c0| 0d 43 4f 4c 4f 55 52 20 | 2a 43 72 65 61 74 65 5f |.COLOUR |*Create_|
|000005d0| 43 6f 6c 6f 75 72 20 28 | 29 0d 20 20 7b 0d 20 20 |Colour (|).  {.  |
|000005e0| 43 4f 4c 4f 55 52 20 2a | 4e 65 77 3b 0d 0d 20 20 |COLOUR *|New;..  |
|000005f0| 69 66 20 28 28 4e 65 77 | 20 3d 20 28 43 4f 4c 4f |if ((New| = (COLO|
|00000600| 55 52 20 2a 29 20 6d 61 | 6c 6c 6f 63 20 28 73 69 |UR *) ma|lloc (si|
|00000610| 7a 65 6f 66 20 28 43 4f | 4c 4f 55 52 29 29 29 20 |zeof (CO|LOUR))) |
|00000620| 3d 3d 20 4e 55 4c 4c 29 | 0d 20 20 20 20 4d 41 45 |== NULL)|.    MAE|
|00000630| 72 72 6f 72 20 28 22 63 | 6f 6c 6f 72 22 29 3b 0d |rror ("c|olor");.|
|00000640| 0d 20 20 4d 61 6b 65 5f | 43 6f 6c 6f 75 72 20 28 |.  Make_|Colour (|
|00000650| 4e 65 77 2c 20 30 2e 30 | 2c 20 30 2e 30 2c 20 30 |New, 0.0|, 0.0, 0|
|00000660| 2e 30 29 3b 0d 20 20 72 | 65 74 75 72 6e 20 28 4e |.0);.  r|eturn (N|
|00000670| 65 77 29 3b 0d 20 20 7d | 0d 0d 43 4f 4c 4f 55 52 |ew);.  }|..COLOUR|
|00000680| 20 2a 43 6f 70 79 5f 43 | 6f 6c 6f 75 72 20 28 4f | *Copy_C|olour (O|
|00000690| 6c 64 29 0d 43 4f 4c 4f | 55 52 20 2a 4f 6c 64 3b |ld).COLO|UR *Old;|
|000006a0| 0d 20 20 7b 0d 20 20 43 | 4f 4c 4f 55 52 20 2a 4e |.  {.  C|OLOUR *N|
|000006b0| 65 77 3b 0d 20 20 69 66 | 20 28 4f 6c 64 20 21 3d |ew;.  if| (Old !=|
|000006c0| 20 4e 55 4c 4c 29 0d 20 | 20 20 20 7b 0d 20 20 20 | NULL). |   {.   |
|000006d0| 20 4e 65 77 20 20 3d 20 | 43 72 65 61 74 65 5f 43 | New  = |Create_C|
|000006e0| 6f 6c 6f 75 72 20 28 29 | 3b 0d 20 20 20 20 2a 4e |olour ()|;.    *N|
|000006f0| 65 77 20 3d 20 2a 4f 6c | 64 3b 0d 20 20 20 20 7d |ew = *Ol|d;.    }|
|00000700| 0d 20 20 65 6c 73 65 20 | 4e 65 77 20 3d 20 4e 55 |.  else |New = NU|
|00000710| 4c 4c 3b 0d 20 20 72 65 | 74 75 72 6e 20 28 4e 65 |LL;.  re|turn (Ne|
|00000720| 77 29 3b 0d 20 20 7d 0d | 0d 20 20 43 4f 4c 4f 55 |w);.  }.|.  COLOU|
|00000730| 52 5f 4d 41 50 5f 45 4e | 54 52 59 20 2a 43 72 65 |R_MAP_EN|TRY *Cre|
|00000740| 61 74 65 5f 43 4d 61 70 | 5f 45 6e 74 72 69 65 73 |ate_CMap|_Entries|
|00000750| 20 28 4d 61 70 5f 53 69 | 7a 65 29 0d 20 20 20 20 | (Map_Si|ze).    |
|00000760| 69 6e 74 20 4d 61 70 5f | 53 69 7a 65 3b 0d 20 20 |int Map_|Size;.  |
|00000770| 7b 0d 20 20 43 4f 4c 4f | 55 52 5f 4d 41 50 5f 45 |{.  COLO|UR_MAP_E|
|00000780| 4e 54 52 59 20 2a 4e 65 | 77 3b 0d 0d 20 20 69 66 |NTRY *Ne|w;..  if|
|00000790| 20 28 28 4e 65 77 20 3d | 20 28 43 4f 4c 4f 55 52 | ((New =| (COLOUR|
|000007a0| 5f 4d 41 50 5f 45 4e 54 | 52 59 20 2a 29 0d 20 20 |_MAP_ENT|RY *).  |
|000007b0| 20 20 6d 61 6c 6c 6f 63 | 28 4d 61 70 5f 53 69 7a |  malloc|(Map_Siz|
|000007c0| 65 20 2a 20 73 69 7a 65 | 6f 66 20 28 43 4f 4c 4f |e * size|of (COLO|
|000007d0| 55 52 5f 4d 41 50 5f 45 | 4e 54 52 59 29 29 29 20 |UR_MAP_E|NTRY))) |
|000007e0| 3d 3d 20 4e 55 4c 4c 29 | 0d 20 20 20 20 4d 41 45 |== NULL)|.    MAE|
|000007f0| 72 72 6f 72 20 28 22 63 | 6f 6c 6f 75 72 20 6d 61 |rror ("c|olour ma|
|00000800| 70 20 65 6e 74 72 79 22 | 29 3b 0d 20 20 72 65 74 |p entry"|);.  ret|
|00000810| 75 72 6e 20 28 4e 65 77 | 29 3b 0d 20 20 7d 0d 0d |urn (New|);.  }..|
|00000820| 43 4f 4c 4f 55 52 5f 4d | 41 50 5f 45 4e 54 52 59 |COLOUR_M|AP_ENTRY|
|00000830| 20 2a 43 6f 70 79 5f 43 | 4d 61 70 5f 45 6e 74 72 | *Copy_C|Map_Entr|
|00000840| 69 65 73 20 28 4f 6c 64 | 2c 4d 61 70 5f 53 69 7a |ies (Old|,Map_Siz|
|00000850| 65 29 0d 43 4f 4c 4f 55 | 52 5f 4d 41 50 5f 45 4e |e).COLOU|R_MAP_EN|
|00000860| 54 52 59 20 2a 4f 6c 64 | 3b 0d 69 6e 74 20 4d 61 |TRY *Old|;.int Ma|
|00000870| 70 5f 53 69 7a 65 3b 0d | 20 20 7b 0d 20 20 43 4f |p_Size;.|  {.  CO|
|00000880| 4c 4f 55 52 5f 4d 41 50 | 5f 45 4e 54 52 59 20 2a |LOUR_MAP|_ENTRY *|
|00000890| 4e 65 77 3b 0d 20 20 72 | 65 67 69 73 74 65 72 20 |New;.  r|egister |
|000008a0| 69 6e 74 20 69 3b 0d 0d | 20 20 69 66 20 28 4f 6c |int i;..|  if (Ol|
|000008b0| 64 20 21 3d 20 4e 55 4c | 4c 29 0d 20 20 20 20 7b |d != NUL|L).    {|
|000008c0| 0d 20 20 20 20 4e 65 77 | 20 3d 20 43 72 65 61 74 |.    New| = Creat|
|000008d0| 65 5f 43 4d 61 70 5f 45 | 6e 74 72 69 65 73 20 28 |e_CMap_E|ntries (|
|000008e0| 4d 61 70 5f 53 69 7a 65 | 29 3b 0d 20 20 20 20 66 |Map_Size|);.    f|
|000008f0| 6f 72 20 28 69 20 3d 20 | 30 3b 20 69 20 3c 20 4d |or (i = |0; i < M|
|00000900| 61 70 5f 53 69 7a 65 3b | 20 69 2b 2b 29 0d 20 20 |ap_Size;| i++).  |
|00000910| 20 20 20 20 4e 65 77 5b | 69 5d 20 3d 20 4f 6c 64 |    New[|i] = Old|
|00000920| 5b 69 5d 3b 0d 20 20 20 | 20 7d 0d 20 20 65 6c 73 |[i];.   | }.  els|
|00000930| 65 0d 20 20 20 20 4e 65 | 77 20 3d 20 4e 55 4c 4c |e.    Ne|w = NULL|
|00000940| 3b 0d 20 20 72 65 74 75 | 72 6e 20 28 4e 65 77 29 |;.  retu|rn (New)|
|00000950| 3b 0d 20 20 7d 0d 0d 43 | 4f 4c 4f 55 52 5f 4d 41 |;.  }..C|OLOUR_MA|
|00000960| 50 20 2a 43 72 65 61 74 | 65 5f 43 6f 6c 6f 75 72 |P *Creat|e_Colour|
|00000970| 5f 4d 61 70 20 28 29 0d | 20 20 7b 0d 20 20 43 4f |_Map ().|  {.  CO|
|00000980| 4c 4f 55 52 5f 4d 41 50 | 20 2a 4e 65 77 3b 0d 0d |LOUR_MAP| *New;..|
|00000990| 20 20 69 66 20 28 28 4e | 65 77 20 3d 20 28 43 4f |  if ((N|ew = (CO|
|000009a0| 4c 4f 55 52 5f 4d 41 50 | 20 2a 29 20 6d 61 6c 6c |LOUR_MAP| *) mall|
|000009b0| 6f 63 20 28 73 69 7a 65 | 6f 66 20 28 43 4f 4c 4f |oc (size|of (COLO|
|000009c0| 55 52 5f 4d 41 50 29 29 | 29 20 3d 3d 20 4e 55 4c |UR_MAP))|) == NUL|
|000009d0| 4c 29 0d 20 20 20 20 4d | 41 45 72 72 6f 72 20 28 |L).    M|AError (|
|000009e0| 22 63 6f 6c 6f 75 72 20 | 6d 61 70 22 29 3b 0d 0d |"colour |map");..|
|000009f0| 20 20 4e 65 77 2d 3e 55 | 73 65 72 73 20 3d 20 30 |  New->U|sers = 0|
|00000a00| 3b 0d 20 20 4e 65 77 2d | 3e 4e 75 6d 62 65 72 5f |;.  New-|>Number_|
|00000a10| 4f 66 5f 45 6e 74 72 69 | 65 73 20 3d 20 30 3b 0d |Of_Entri|es = 0;.|
|00000a20| 20 20 4e 65 77 2d 3e 43 | 6f 6c 6f 75 72 5f 4d 61 |  New->C|olour_Ma|
|00000a30| 70 5f 45 6e 74 72 69 65 | 73 20 3d 20 4e 55 4c 4c |p_Entrie|s = NULL|
|00000a40| 3b 0d 20 20 4e 65 77 2d | 3e 54 72 61 6e 73 70 61 |;.  New-|>Transpa|
|00000a50| 72 65 6e 63 79 5f 46 6c | 61 67 20 3d 20 46 41 4c |rency_Fl|ag = FAL|
|00000a60| 53 45 3b 0d 20 20 72 65 | 74 75 72 6e 20 28 4e 65 |SE;.  re|turn (Ne|
|00000a70| 77 29 3b 0d 20 20 7d 20 | 20 20 0d 0d 43 4f 4c 4f |w);.  } |  ..COLO|
|00000a80| 55 52 5f 4d 41 50 20 2a | 43 6f 70 79 5f 43 6f 6c |UR_MAP *|Copy_Col|
|00000a90| 6f 75 72 5f 4d 61 70 20 | 28 4f 6c 64 29 0d 43 4f |our_Map |(Old).CO|
|00000aa0| 4c 4f 55 52 5f 4d 41 50 | 20 2a 4f 6c 64 3b 0d 20 |LOUR_MAP| *Old;. |
|00000ab0| 20 7b 0d 20 20 43 4f 4c | 4f 55 52 5f 4d 41 50 20 | {.  COL|OUR_MAP |
|00000ac0| 2a 4e 65 77 3b 0d 0d 20 | 20 4e 65 77 20 3d 20 4f |*New;.. | New = O|
|00000ad0| 6c 64 3b 0d 20 20 69 66 | 20 28 4e 65 77 20 21 3d |ld;.  if| (New !=|
|00000ae0| 20 4e 55 4c 4c 29 0d 20 | 20 20 20 4e 65 77 2d 3e | NULL). |   New->|
|00000af0| 55 73 65 72 73 2b 2b 3b | 0d 0d 20 20 72 65 74 75 |Users++;|..  retu|
|00000b00| 72 6e 20 28 4e 65 77 29 | 3b 0d 20 20 7d 0d 0d 44 |rn (New)|;.  }..D|
|00000b10| 42 4c 20 43 6f 6c 6f 75 | 72 5f 44 69 73 74 61 6e |BL Colou|r_Distan|
|00000b20| 63 65 20 28 63 6f 6c 6f | 75 72 31 2c 20 63 6f 6c |ce (colo|ur1, col|
|00000b30| 6f 75 72 32 29 0d 43 4f | 4c 4f 55 52 20 2a 63 6f |our2).CO|LOUR *co|
|00000b40| 6c 6f 75 72 31 2c 20 2a | 63 6f 6c 6f 75 72 32 3b |lour1, *|colour2;|
|00000b50| 0d 20 20 7b 0d 20 20 72 | 65 74 75 72 6e 20 28 46 |.  {.  r|eturn (F|
|00000b60| 41 42 53 20 28 63 6f 6c | 6f 75 72 31 2d 3e 52 65 |ABS (col|our1->Re|
|00000b70| 64 20 2d 20 63 6f 6c 6f | 75 72 32 2d 3e 52 65 64 |d - colo|ur2->Red|
|00000b80| 29 0d 20 20 20 20 2b 20 | 46 41 42 53 20 28 63 6f |).    + |FABS (co|
|00000b90| 6c 6f 75 72 31 2d 3e 47 | 72 65 65 6e 20 2d 20 63 |lour1->G|reen - c|
|00000ba0| 6f 6c 6f 75 72 32 2d 3e | 47 72 65 65 6e 29 0d 20 |olour2->|Green). |
|00000bb0| 20 20 20 2b 20 46 41 42 | 53 20 28 63 6f 6c 6f 75 |   + FAB|S (colou|
|00000bc0| 72 31 2d 3e 42 6c 75 65 | 20 2d 20 63 6f 6c 6f 75 |r1->Blue| - colou|
|00000bd0| 72 32 2d 3e 42 6c 75 65 | 29 29 3b 0d 20 20 7d 0d |r2->Blue|));.  }.|
|00000be0| 0d 76 6f 69 64 20 41 64 | 64 5f 43 6f 6c 6f 75 72 |.void Ad|d_Colour|
|00000bf0| 20 28 72 65 73 75 6c 74 | 2c 20 63 6f 6c 6f 75 72 | (result|, colour|
|00000c00| 31 2c 20 63 6f 6c 6f 75 | 72 32 29 0d 43 4f 4c 4f |1, colou|r2).COLO|
|00000c10| 55 52 20 2a 72 65 73 75 | 6c 74 2c 20 2a 63 6f 6c |UR *resu|lt, *col|
|00000c20| 6f 75 72 31 2c 20 2a 63 | 6f 6c 6f 75 72 32 3b 0d |our1, *c|olour2;.|
|00000c30| 20 20 7b 0d 20 20 72 65 | 73 75 6c 74 2d 3e 52 65 |  {.  re|sult->Re|
|00000c40| 64 20 3d 20 63 6f 6c 6f | 75 72 31 2d 3e 52 65 64 |d = colo|ur1->Red|
|00000c50| 20 2b 20 63 6f 6c 6f 75 | 72 32 2d 3e 52 65 64 3b | + colou|r2->Red;|
|00000c60| 0d 20 20 72 65 73 75 6c | 74 2d 3e 47 72 65 65 6e |.  resul|t->Green|
|00000c70| 20 3d 20 63 6f 6c 6f 75 | 72 31 2d 3e 47 72 65 65 | = colou|r1->Gree|
|00000c80| 6e 20 2b 20 63 6f 6c 6f | 75 72 32 2d 3e 47 72 65 |n + colo|ur2->Gre|
|00000c90| 65 6e 3b 0d 20 20 72 65 | 73 75 6c 74 2d 3e 42 6c |en;.  re|sult->Bl|
|00000ca0| 75 65 20 3d 20 63 6f 6c | 6f 75 72 31 2d 3e 42 6c |ue = col|our1->Bl|
|00000cb0| 75 65 20 2b 20 63 6f 6c | 6f 75 72 32 2d 3e 42 6c |ue + col|our2->Bl|
|00000cc0| 75 65 3b 0d 20 20 72 65 | 73 75 6c 74 2d 3e 46 69 |ue;.  re|sult->Fi|
|00000cd0| 6c 74 65 72 20 3d 20 63 | 6f 6c 6f 75 72 31 2d 3e |lter = c|olour1->|
|00000ce0| 46 69 6c 74 65 72 20 2b | 20 63 6f 6c 6f 75 72 32 |Filter +| colour2|
|00000cf0| 2d 3e 46 69 6c 74 65 72 | 3b 0d 20 20 7d 0d 0d 76 |->Filter|;.  }..v|
|00000d00| 6f 69 64 20 53 63 61 6c | 65 5f 43 6f 6c 6f 75 72 |oid Scal|e_Colour|
|00000d10| 20 28 72 65 73 75 6c 74 | 2c 20 63 6f 6c 6f 75 72 | (result|, colour|
|00000d20| 2c 20 66 61 63 74 6f 72 | 29 0d 43 4f 4c 4f 55 52 |, factor|).COLOUR|
|00000d30| 20 2a 72 65 73 75 6c 74 | 2c 20 2a 63 6f 6c 6f 75 | *result|, *colou|
|00000d40| 72 3b 0d 44 42 4c 20 66 | 61 63 74 6f 72 3b 0d 20 |r;.DBL f|actor;. |
|00000d50| 20 7b 0d 20 20 72 65 73 | 75 6c 74 2d 3e 52 65 64 | {.  res|ult->Red|
|00000d60| 20 3d 20 63 6f 6c 6f 75 | 72 2d 3e 52 65 64 20 2a | = colou|r->Red *|
|00000d70| 20 66 61 63 74 6f 72 3b | 0d 20 20 72 65 73 75 6c | factor;|.  resul|
|00000d80| 74 2d 3e 47 72 65 65 6e | 20 3d 20 63 6f 6c 6f 75 |t->Green| = colou|
|00000d90| 72 2d 3e 47 72 65 65 6e | 20 2a 20 66 61 63 74 6f |r->Green| * facto|
|00000da0| 72 3b 0d 20 20 72 65 73 | 75 6c 74 2d 3e 42 6c 75 |r;.  res|ult->Blu|
|00000db0| 65 20 3d 20 63 6f 6c 6f | 75 72 2d 3e 42 6c 75 65 |e = colo|ur->Blue|
|00000dc0| 20 2a 20 66 61 63 74 6f | 72 3b 0d 20 20 72 65 73 | * facto|r;.  res|
|00000dd0| 75 6c 74 2d 3e 46 69 6c | 74 65 72 20 3d 20 63 6f |ult->Fil|ter = co|
|00000de0| 6c 6f 75 72 2d 3e 46 69 | 6c 74 65 72 20 2a 20 66 |lour->Fi|lter * f|
|00000df0| 61 63 74 6f 72 3b 0d 20 | 20 7d 0d 0d 76 6f 69 64 |actor;. | }..void|
|00000e00| 20 43 6c 69 70 5f 43 6f | 6c 6f 75 72 20 28 72 65 | Clip_Co|lour (re|
|00000e10| 73 75 6c 74 2c 20 63 6f | 6c 6f 75 72 29 0d 43 4f |sult, co|lour).CO|
|00000e20| 4c 4f 55 52 20 2a 72 65 | 73 75 6c 74 2c 20 2a 63 |LOUR *re|sult, *c|
|00000e30| 6f 6c 6f 75 72 3b 0d 20 | 20 7b 0d 20 20 69 66 20 |olour;. | {.  if |
|00000e40| 28 63 6f 6c 6f 75 72 20 | 2d 3e 20 52 65 64 20 3e |(colour |-> Red >|
|00000e50| 20 31 2e 30 29 0d 20 20 | 20 20 72 65 73 75 6c 74 | 1.0).  |  result|
|00000e60| 20 2d 3e 20 52 65 64 20 | 3d 20 31 2e 30 3b 0d 20 | -> Red |= 1.0;. |
|00000e70| 20 65 6c 73 65 20 69 66 | 20 28 63 6f 6c 6f 75 72 | else if| (colour|
|00000e80| 20 2d 3e 20 52 65 64 20 | 3c 20 30 2e 30 29 0d 20 | -> Red |< 0.0). |
|00000e90| 20 20 20 72 65 73 75 6c | 74 20 2d 3e 20 52 65 64 |   resul|t -> Red|
|00000ea0| 20 3d 20 30 2e 30 3b 0d | 20 20 65 6c 73 65 20 72 | = 0.0;.|  else r|
|00000eb0| 65 73 75 6c 74 20 2d 3e | 20 52 65 64 20 3d 20 63 |esult ->| Red = c|
|00000ec0| 6f 6c 6f 75 72 20 2d 3e | 20 52 65 64 3b 0d 0d 20 |olour ->| Red;.. |
|00000ed0| 20 20 20 69 66 20 28 63 | 6f 6c 6f 75 72 20 2d 3e |   if (c|olour ->|
|00000ee0| 20 47 72 65 65 6e 20 3e | 20 31 2e 30 29 0d 20 20 | Green >| 1.0).  |
|00000ef0| 20 20 20 20 72 65 73 75 | 6c 74 20 2d 3e 20 47 72 |    resu|lt -> Gr|
|00000f00| 65 65 6e 20 3d 20 31 2e | 30 3b 0d 20 20 20 20 65 |een = 1.|0;.    e|
|00000f10| 6c 73 65 20 69 66 20 28 | 63 6f 6c 6f 75 72 20 2d |lse if (|colour -|
|00000f20| 3e 20 47 72 65 65 6e 20 | 3c 20 30 2e 30 29 0d 20 |> Green |< 0.0). |
|00000f30| 20 20 20 20 20 72 65 73 | 75 6c 74 20 2d 3e 20 47 |     res|ult -> G|
|00000f40| 72 65 65 6e 20 3d 20 30 | 2e 30 3b 0d 20 20 20 20 |reen = 0|.0;.    |
|00000f50| 65 6c 73 65 20 72 65 73 | 75 6c 74 20 2d 3e 20 47 |else res|ult -> G|
|00000f60| 72 65 65 6e 20 3d 20 63 | 6f 6c 6f 75 72 20 2d 3e |reen = c|olour ->|
|00000f70| 20 47 72 65 65 6e 3b 0d | 0d 20 20 20 20 69 66 20 | Green;.|.    if |
|00000f80| 28 63 6f 6c 6f 75 72 20 | 2d 3e 20 42 6c 75 65 20 |(colour |-> Blue |
|00000f90| 3e 20 31 2e 30 29 0d 20 | 20 20 20 20 20 72 65 73 |> 1.0). |     res|
|00000fa0| 75 6c 74 20 2d 3e 20 42 | 6c 75 65 20 3d 20 31 2e |ult -> B|lue = 1.|
|00000fb0| 30 3b 0d 20 20 20 20 65 | 6c 73 65 20 69 66 20 28 |0;.    e|lse if (|
|00000fc0| 63 6f 6c 6f 75 72 20 2d | 3e 20 42 6c 75 65 20 3c |colour -|> Blue <|
|00000fd0| 20 30 2e 30 29 0d 20 20 | 20 20 20 20 72 65 73 75 | 0.0).  |    resu|
|00000fe0| 6c 74 20 2d 3e 20 42 6c | 75 65 20 3d 20 30 2e 30 |lt -> Bl|ue = 0.0|
|00000ff0| 3b 0d 20 20 20 20 65 6c | 73 65 20 72 65 73 75 6c |;.    el|se resul|
|00001000| 74 20 2d 3e 20 42 6c 75 | 65 20 3d 20 63 6f 6c 6f |t -> Blu|e = colo|
|00001010| 75 72 20 2d 3e 20 42 6c | 75 65 3b 0d 0d 20 20 20 |ur -> Bl|ue;..   |
|00001020| 20 69 66 20 28 63 6f 6c | 6f 75 72 20 2d 3e 20 46 | if (col|our -> F|
|00001030| 69 6c 74 65 72 20 3e 20 | 31 2e 30 29 0d 20 20 20 |ilter > |1.0).   |
|00001040| 20 20 20 72 65 73 75 6c | 74 20 2d 3e 20 46 69 6c |   resul|t -> Fil|
|00001050| 74 65 72 20 3d 20 31 2e | 30 3b 0d 20 20 20 20 65 |ter = 1.|0;.    e|
|00001060| 6c 73 65 20 69 66 20 28 | 63 6f 6c 6f 75 72 20 2d |lse if (|colour -|
|00001070| 3e 20 46 69 6c 74 65 72 | 20 3c 20 30 2e 30 29 0d |> Filter| < 0.0).|
|00001080| 20 20 20 20 20 20 72 65 | 73 75 6c 74 20 2d 3e 20 |      re|sult -> |
|00001090| 46 69 6c 74 65 72 20 3d | 20 30 2e 30 3b 0d 20 20 |Filter =| 0.0;.  |
|000010a0| 20 20 65 6c 73 65 20 72 | 65 73 75 6c 74 20 2d 3e |  else r|esult ->|
|000010b0| 20 46 69 6c 74 65 72 20 | 3d 20 63 6f 6c 6f 75 72 | Filter |= colour|
|000010c0| 20 2d 3e 20 46 69 6c 74 | 65 72 3b 0d 20 20 7d 0d | -> Filt|er;.  }.|
|000010d0| 0d 20 20 76 6f 69 64 20 | 44 65 73 74 72 6f 79 5f |.  void |Destroy_|
|000010e0| 43 6f 6c 6f 75 72 5f 4d | 61 70 20 28 43 4d 61 70 |Colour_M|ap (CMap|
|000010f0| 29 0d 20 20 20 20 43 4f | 4c 4f 55 52 5f 4d 41 50 |).    CO|LOUR_MAP|
|00001100| 20 2a 43 4d 61 70 3b 0d | 20 20 7b 0d 20 20 69 66 | *CMap;.|  {.  if|
|00001110| 20 28 43 4d 61 70 20 3d | 3d 20 4e 55 4c 4c 29 0d | (CMap =|= NULL).|
|00001120| 20 20 20 20 72 65 74 75 | 72 6e 3b 0d 0d 20 20 69 |    retu|rn;..  i|
|00001130| 66 20 28 43 4d 61 70 2d | 3e 55 73 65 72 73 20 3c |f (CMap-|>Users <|
|00001140| 20 30 29 0d 20 20 20 20 | 72 65 74 75 72 6e 3b 0d | 0).    |return;.|
|00001150| 0d 20 20 43 4d 61 70 2d | 3e 55 73 65 72 73 2d 2d |.  CMap-|>Users--|
|00001160| 3b 0d 0d 20 20 69 66 20 | 28 43 4d 61 70 2d 3e 55 |;..  if |(CMap->U|
|00001170| 73 65 72 73 20 3e 3d 20 | 30 29 0d 20 20 20 20 72 |sers >= |0).    r|
|00001180| 65 74 75 72 6e 3b 0d 0d | 20 20 66 72 65 65 20 28 |eturn;..|  free (|
|00001190| 43 4d 61 70 2d 3e 43 6f | 6c 6f 75 72 5f 4d 61 70 |CMap->Co|lour_Map|
|000011a0| 5f 45 6e 74 72 69 65 73 | 29 3b 0d 20 20 66 72 65 |_Entries|);.  fre|
|000011b0| 65 20 28 43 4d 61 70 29 | 3b 0d 20 20 7d 0d 00 00 |e (CMap)|;.  }...|
|000011c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000011d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000011e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000011f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001200| 00 00 01 00 00 00 01 6e | 00 00 00 6e 00 00 00 3e |.......n|...n...>|
|00001210| 6f 70 20 2a 2f 0d 09 09 | 43 6c 6f 73 65 43 50 6f |op */...|CloseCPo|
|00001220| 72 74 28 26 6d 79 43 47 | 72 61 66 50 74 72 29 3b |rt(&myCG|rafPtr);|
|00001230| 08 43 4f 4c 4f 55 52 2e | 43 00 02 00 00 00 54 45 |.COLOUR.|C.....TE|
|00001240| 58 54 4d 50 53 20 01 08 | ff ff ff ff 00 00 00 00 |XTMPS ..|........|
|00001250| 00 00 54 45 58 54 4d 50 | 53 20 01 08 ff ff ff ff |..TEXTMP|S ......|
|00001260| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001270| 00 00 a8 7c 6e 0c 00 00 | 11 3e 00 00 01 ac 6e 64 |...|n...|.>....nd|
|00001280| 6c 65 29 3b 0d 0d 09 09 | 2f 2a 20 6f 68 20 79 65 |le);....|/* oh ye|
|00001290| 61 68 2c 20 63 68 65 63 | 6b 20 66 6f 72 20 65 72 |ah, chec|k for er|
|000012a0| 72 6f 72 73 20 2a 2f 0d | 09 09 69 66 20 28 61 6e |rors */.|..if (an|
|000012b0| 45 72 72 6f 72 29 0d 09 | 09 7b 0d 09 09 09 69 66 |Error)..|.{....if|
|000012c0| 20 28 67 49 6d 61 67 65 | 50 69 63 74 46 69 6c 65 | (gImage|PictFile|
|000012d0| 29 0d 09 09 09 7b 0d 09 | 09 09 09 66 63 6c 6f 73 |)....{..|...fclos|
|000012e0| 65 20 28 67 49 6d 61 67 | 65 50 69 63 74 46 69 6c |e (gImag|ePictFil|
|000012f0| 65 29 3b 0d 09 09 09 09 | 67 49 6d 61 67 65 50 69 |e);.....|gImagePi|
|00001300| 00 00 00 48 00 09 4d 6f | 6e 61 63 6f 00 00 01 38 |...H..Mo|naco...8|
|00001310| 00 02 55 c4 00 0a 00 02 | 01 b9 00 11 01 d5 00 00 |..U.....|........|
|00001320| 00 00 00 00 00 00 00 06 | 00 04 00 b4 00 0c 01 dd |........|........|
|00001330| 02 3d 00 b4 00 0c 01 dd | 02 3d a8 7c 6e 0c 00 00 |.=......|.=.|n...|
|00001340| 00 00 00 00 00 00 00 00 | 00 00 01 00 00 00 00 1e |........|........|
|00001350| 00 b4 00 0c 01 dd 02 3d | 00 b4 00 0c 01 dd 02 3d |.......=|.......=|
|00001360| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00001370| 01 00 00 00 01 6e 00 00 | 00 6e 00 00 00 3e 00 8d |.....n..|.n...>..|
|00001380| 3b f8 18 3e 00 00 00 1c | 00 3e 00 00 4d 50 53 52 |;..>....|.>..MPSR|
|00001390| 00 01 00 0a 03 ed ff ff | 00 00 00 00 00 00 00 00 |........|........|
|000013a0| 03 f0 ff ff 00 00 00 4c | 00 8f 92 88 00 00 00 00 |.......L|........|
|000013b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000013c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000013d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000013e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000013f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
+--------+-------------------------+-------------------------+--------+--------+