-
Notifications
You must be signed in to change notification settings - Fork 1
/
ColorM.pas
263 lines (241 loc) · 8.17 KB
/
ColorM.pas
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
unit ColorM;
{language: object Pascal
compiler: VER ?
IDE: Borland Delphi 7.0 personal edition
style: objective
method : vizual (RAD)
library: standard = VCL
OS: windows 98 SE
hardware: PC}
{ author of the module : Adam Majewski [email protected] http://republika.pl/fraktal/ }
//
// FUNCTION HSVtoColor is from UNIT HSVLibrary; efg, July 1999 www.efg2.com/lab
// Function Rainbow Witold J.Janik; [email protected]
//
// pl - wa³brzych 2005.01.11
interface
uses Graphics, // type TColor
Forms, // TForm
Math, // function Max ,ArcCosH
SysUtils,
windows; //function RGB
//
Type TColorType=(TrueColor=0,GrayScale,direct,Pseudo8bit,BlackAndW);
Type PseudoColor= record _R,_G,_B:byte end;
//
FUNCTION HSVtoColor (CONST H,S,V: INTEGER): TColor;
Function Point2Color(iX,iY:integer):TColor;
Function Rainbow(iMin, iMax, i: Integer): TColor;
Function GrayScaleF(i:byte):TColor;
Function GivePseudo8bitColor(k:byte):TColor;
Procedure SetupPPalette;
Procedure ReadMapFile(FileName:string);
//
// ----------------------------------------------------
var PseudoPalette:Array [0..255] of pseudoColor;
ColorType: TColorType;
MapFile:TextFile;
SearchRec:TSearchRec; //
//-------------------------------------------------------------------------
implementation //--------------------------------------------------------
//--------------------------------------------------------------------------
uses mainM, bmpM;
FUNCTION HSVtoColor (CONST H,S,V: INTEGER): TColor;
// from UNIT HSVLibrary;
// efg, July 1999
// www.efg2.com/lab
//
// Copyright 1999, All Rights Reserved.
// May be used freely for non-commercial purposes.
// Integer Routines
// Floating point fractions, 0..1, replaced with integer values, 0..255.
// Use integer conversion ONLY for one-way, or a single final conversions.
// Use floating-point for converting reversibly.
//
// H = 0 to 360 (corresponding to 0..360 degrees around hexcone)
// 0 (undefined) for S = 0
// S = 0 (shade of gray) to 255 (pure color)
// V = 0 (black) to 255 (white)
//--------------------------------------------
////////////////////////////////////////////////////////////////////////////
CONST
divisor: INTEGER = 255*60;
VAR
f : INTEGER;
hTemp: INTEGER;
p,q,t: INTEGER;
VS : INTEGER;
BEGIN
IF S = 0
THEN RESULT := RGB(V, V, V) // achromatic: shades of gray
ELSE BEGIN // chromatic color
IF H = 360
THEN hTemp := 0
ELSE hTemp := H;
f := hTemp MOD 60; // f is IN [0, 59]
hTemp := hTemp DIV 60; // h is now IN [0,6)
VS := V*S;
p := V - VS DIV 255; // p = v * (1 - s)
q := V - (VS*f) DIV divisor; // q = v * (1 - s*f)
t := V - (VS*(60 - f)) DIV divisor; // t = v * (1 - s * (1 - f))
CASE hTemp OF
0: RESULT := RGB(V, t, p);
1: RESULT := RGB(q, V, p);
2: RESULT := RGB(p, V, t);
3: RESULT := RGB(p, q, V);
4: RESULT := RGB(t, p, V);
5: RESULT := RGB(V, p, q);
ELSE RESULT := RGB(0,0,0) // should never happen;
// avoid compiler warning
END
END
END {HSVtoRGBTriple};
//-------------------------------------------------------------------
Function Point2Color(iX,iY:integer):TColor;
var h,s:integer;
center:Tpoint;
radius:integer;
v:integer;
begin
//
v:=255;
//
center.x:=Bitmapa.Width div 2;
center.Y:=bitmapa.Height div 2;
//
radius:=round(sqrt(sqr(iX-center.X)+sqr(iy-center.Y)));
if radius< center.y
then {HSV circle}
begin
h:=round(RadToDeg(Pi+ArcTan2(iy-center.Y,center.X-ix))); // angle
s:=round(radius*256/center.y);
Point2Color:=HSVtoColor(h,s,v);
end // if radius ...
else Point2Color:=clBlack; {black background }
end;//----- Function Point2Color ------------
//------------------------------------------------------------
Function Rainbow(iMin, iMax, i: Integer): TColor;
// Witold J.Janik; [email protected]
// Funkcja Rainbow draws
// rainbow while [i] changes form [iMin] to [iMax]
// thx for Andrzeja W¹sika from [pl.comp.lang.delphi]
// http://4programmers.net/view.php?id=201
//----------------------------------------------------
// comments by Adam Majewski
// ka¿da sk³adowa RGB zmienia siê od 0 do 255(od $00 do $FF), czyli ma 256 mo¿liwych stanow
//dzielimy palete na 6 paskow
// gdyz oprocz:
// B&W czyli ($000000) & ($FFFFFF) oraz
// gray: r=g=b,
// (które nie wystêpuj¹ w têczy)
//istnieje tylko 6 skrajnosci:
// 3 kolory podstawowe: red ($FF0000), Green ($00FF00), Dark Blue ($0000FF)
// 3 kolory mieszane: yellow ($FFFF00), fioletowy ($FF00FF), Light Blue ($00FFFF)
//-----
// i zmienia siê od iMin do iMax
// m zmienia sie od 0 (dla i=iMin) do 6 (dla i=iMax)
// mt zmienia siê od 0 do 255
// trunc(mt) zmienia siê od 0 przez 1,2,3,4 do 5 (ma 6 wartosci}
//--------------------------------------------------------------------------
var
m: Double; //odsetek ( u³amek) * 6
r, g, b, // RGB parts of color
mt: Byte; // (decimal part of number m)* 255
// trunc(m)= integer part of number m
begin
m := (i - iMin)/(iMax - iMin + 1)* 6;
mt := round(frac(m)*$FF);
case Trunc(m) of
0: begin //from red ($FF0000) to yellow ($FFFF00)
R := $FF;
G := mt;
B := 0;
end;
1: begin // from yellow ($FFFF00) to green ($00FF00)
R := $FF - mt;
G := $FF;
B := 0;
end;
2: begin //from green ($00FF00) to light blue($00FFFF)
R := 0;
G := $FF;
B := mt;
end;
3: begin // from light blue($00FFFF) to dark blue($0000FF)
R := 0;
G := $FF - mt;
B := $FF;
end;
4: begin // from dark blue ($0000FF) to violet ($FF00FF)
R := mt;
G := 0;
B := $FF;
end;
5: begin // from violet ($FF00FF) to red ($FF0000)
R := $FF;
G := 0;
B := $FF - mt;
end;
end; // case
Result := rgb(R,G,B);
end; //************ Function rainbow *********************************
Function GrayScaleF(i:byte):TColor;
begin
result:=rgb(i,i,i);
end;
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Function GivePseudo8bitColor(k:byte):TColor;
begin
// r*$1000+g*$100+b;
result:=$1000*PseudoPalette[k]._R+$100* PseudoPalette[k]._G+PseudoPalette[k]._B;
end;
//-------------------------------------------
Procedure SetupPPalette;
//Setup pseudopallette for Pseudo8bit color mode
var i:byte;
a,b,c:single;
m,n,o:integer;
j,k,l:single;
begin
//pallette that wraps around
{ maxColor / 2*Pi * frequency}
j:=255/360*3;
k:=255/360*2;
l:=255/360;
//
a:=0;
b:=0;
c:=0;
//
For i:=0 to 255 do
begin
m:=Round(a);
n:=round(b);
o:=round(c);
//
PseudoPalette[i]._R:=round(256*abs(sin(m*pi/180)));
PseudoPalette[i]._G:=round(256*abs(sin(n*pi/180)));
PseudoPalette[i]._B:=round(256*abs(sin(o*pi/180)));
//
a:=a+j;
b:=b+k;
c:=c+l;
end; //
end;
// ----------------------------------------------------------
Procedure ReadMapFile(FileName:string);
var i:byte;
begin
AssignFile(MapFile,FileName);
Reset(MapFile); // open file only for read
i:=0;
While not Eof(MapFile) do
begin
// files with commentary #
// or empty lines are not allowed buy this procedure
ReadLn(MapFile, PseudoPalette[i]._R,PseudoPalette[i]._G,PseudoPalette[i]._B);
inc(i);
end; // While not Eof(PalFile)
end;
//--------------------------------------
end.