| 1 |
UNIT Unit6_imgfuncs; |
| 2 |
INTERFACE |
| 3 |
USES Math, Unit3_data; |
| 4 |
|
| 5 |
TYPE |
| 6 |
TImgPackage=RECORD |
| 7 |
imgx,imgy:Word; |
| 8 |
imgdepth:Byte; |
| 9 |
storetype:Byte; |
| 10 |
datasize:LongWord; |
| 11 |
raw_addr:LongWord; |
| 12 |
imgdata:Tdata; |
| 13 |
END; |
| 14 |
FUNCTION ResizeImage(oldx,oldy:LongWord; imgdepth:Byte; data:Tdata):Tdata; |
| 15 |
FUNCTION RevertImage(imgx,imgy,imgdepth:LongWord; imgdata:Tdata):Tdata; |
| 16 |
FUNCTION DecompressImage(imgx,imgy:LongWord; imgdata:Tdata):Tdata; |
| 17 |
FUNCTION ImgdataToBmp(imgx,imgy,imgdepth,storetype:LongWord; imgdata:Tdata):Tdata; |
| 18 |
FUNCTION LoadImgData(fileid:LongWord):TImgPackage; |
| 19 |
|
| 20 |
IMPLEMENTATION |
| 21 |
USES Unit2_functions; |
| 22 |
|
| 23 |
|
| 24 |
FUNCTION ResizeImage(oldx,oldy:LongWord; imgdepth:Byte; data:Tdata):Tdata; |
| 25 |
VAR |
| 26 |
i,j:LongWord; |
| 27 |
col,row,row_orig:LongWord; |
| 28 |
temparray:Tdata; |
| 29 |
BEGIN |
| 30 |
SetLength(temparray,(oldx DIV 2)*(oldy DIV 2)*(imgdepth DIV 8)); |
| 31 |
row_orig:=0; |
| 32 |
row:=0; |
| 33 |
col:=0; |
| 34 |
FOR i:=0 TO (oldx*oldy)-1 DO BEGIN |
| 35 |
IF ((i MOD oldx)=0) AND (i>0) THEN BEGIN |
| 36 |
Inc(row_orig); |
| 37 |
IF (row_orig MOD 2)=0 THEN BEGIN |
| 38 |
Inc(row); |
| 39 |
col:=0; |
| 40 |
END; |
| 41 |
END; |
| 42 |
IF (row_orig MOD 2)=0 THEN BEGIN |
| 43 |
IF (i MOD 2)=0 THEN BEGIN |
| 44 |
FOR j:=0 TO (imgdepth DIV 8)-1 DO |
| 45 |
temparray[((row*(oldx DIV 2))+col)*(imgdepth DIV 8)+j]:=data[i*2+j]; |
| 46 |
Inc(col); |
| 47 |
END; |
| 48 |
END; |
| 49 |
END; |
| 50 |
Result:=temparray; |
| 51 |
END; |
| 52 |
|
| 53 |
|
| 54 |
FUNCTION RevertImage(imgx,imgy,imgdepth:LongWord; imgdata:Tdata):Tdata; |
| 55 |
VAR |
| 56 |
x,y,i:LongWord; |
| 57 |
BEGIN |
| 58 |
SetLength(Result,imgx*imgy*(imgdepth DIV 8)); |
| 59 |
FOR y:=0 TO imgy-1 DO |
| 60 |
FOR x:=0 TO imgx-1 DO |
| 61 |
FOR i:=0 TO (imgdepth DIV 8)-1 DO |
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Result[((imgx*(imgy-1-y)+x)*(imgdepth DIV 8))+i]:= |
| 63 |
imgdata[(imgx*y+x)*(imgdepth DIV 8)+i]; |
| 64 |
END; |
| 65 |
|
| 66 |
|
| 67 |
FUNCTION DecompressImage(imgx,imgy:LongWord; imgdata:Tdata):Tdata; |
| 68 |
TYPE |
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Tcolor=RECORD |
| 70 |
RGBb:Byte; |
| 71 |
RGBg:Byte; |
| 72 |
RGBr:Byte; |
| 73 |
RGBa:Byte; |
| 74 |
END; |
| 75 |
VAR |
| 76 |
i,j,x,y:LongWord; |
| 77 |
color:Array[1..4] OF Tcolor; |
| 78 |
pixel:Array[1..16] OF Byte; |
| 79 |
BEGIN |
| 80 |
x:=0; |
| 81 |
y:=0; |
| 82 |
SetLength(Result,imgx*imgy*4); |
| 83 |
FOR i:=0 TO ((imgx*imgy) DIV 16)-1 DO BEGIN |
| 84 |
Color[1].RGBb:=Floor(((imgdata[(i*8)+0]+imgdata[(i*8)+1]*256) AND $001F) / $001F * 255); |
| 85 |
Color[1].RGBg:=Floor(((imgdata[(i*8)+0]+imgdata[(i*8)+1]*256) AND $07E0) / $07E0 * 255); |
| 86 |
Color[1].RGBr:=Floor(((imgdata[(i*8)+0]+imgdata[(i*8)+1]*256) AND $F800) / $F800 * 255); |
| 87 |
Color[1].RGBa:=255; |
| 88 |
Color[2].RGBb:=Floor(((imgdata[(i*8)+2]+imgdata[(i*8)+3]*256) AND $001F) / $001F * 255); |
| 89 |
Color[2].RGBg:=Floor(((imgdata[(i*8)+2]+imgdata[(i*8)+3]*256) AND $07E0) / $07E0 * 255); |
| 90 |
Color[2].RGBr:=Floor(((imgdata[(i*8)+2]+imgdata[(i*8)+3]*256) AND $F800) / $F800 * 255); |
| 91 |
Color[2].RGBa:=255; |
| 92 |
Color[3].RGBb:=Floor( Color[1].RGBb/3*2 + Color[2].RGBb/3 ); |
| 93 |
Color[3].RGBg:=Floor( Color[1].RGBg/3*2 + Color[2].RGBg/3 ); |
| 94 |
Color[3].RGBr:=Floor( Color[1].RGBr/3*2 + Color[2].RGBr/3 ); |
| 95 |
Color[3].RGBa:=255; |
| 96 |
Color[4].RGBb:=Floor( Color[1].RGBb/3 + Color[2].RGBb/3*2 ); |
| 97 |
Color[4].RGBg:=Floor( Color[1].RGBg/3 + Color[2].RGBg/3*2 ); |
| 98 |
Color[4].RGBr:=Floor( Color[1].RGBr/3 + Color[2].RGBr/3*2 ); |
| 99 |
Color[4].RGBa:=255; |
| 100 |
Pixel[1]:=Floor( (imgdata[(i*8)+4] AND $C0) / $40 + 1 ); |
| 101 |
Pixel[2]:=Floor( (imgdata[(i*8)+4] AND $30) / $10 + 1 ); |
| 102 |
Pixel[3]:=Floor( (imgdata[(i*8)+4] AND $0C) / $04 + 1 ); |
| 103 |
Pixel[4]:=Floor( (imgdata[(i*8)+4] AND $03) + 1 ); |
| 104 |
Pixel[5]:=Floor( (imgdata[(i*8)+5] AND $C0) / $40 + 1 ); |
| 105 |
Pixel[6]:=Floor( (imgdata[(i*8)+5] AND $30) / $10 + 1 ); |
| 106 |
Pixel[7]:=Floor( (imgdata[(i*8)+5] AND $0C) / $04 + 1 ); |
| 107 |
Pixel[8]:=Floor( (imgdata[(i*8)+5] AND $03) + 1 ); |
| 108 |
Pixel[9]:=Floor( (imgdata[(i*8)+6] AND $C0) / $40 + 1 ); |
| 109 |
Pixel[10]:=Floor( (imgdata[(i*8)+6] AND $30) / $10 + 1 ); |
| 110 |
Pixel[11]:=Floor( (imgdata[(i*8)+6] AND $0C) / $04 + 1 ); |
| 111 |
Pixel[12]:=Floor( (imgdata[(i*8)+6] AND $03) + 1 ); |
| 112 |
Pixel[13]:=Floor( (imgdata[(i*8)+7] AND $C0) / $40 + 1 ); |
| 113 |
Pixel[14]:=Floor( (imgdata[(i*8)+7] AND $30) / $10 + 1 ); |
| 114 |
Pixel[15]:=Floor( (imgdata[(i*8)+7] AND $0C) / $04 + 1 ); |
| 115 |
Pixel[16]:=Floor( (imgdata[(i*8)+7] AND $03) + 1 ); |
| 116 |
FOR j:=0 TO 3 DO BEGIN |
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Result[((y+3)*imgx+x+j)*3+0]:=Color[Pixel[16-j]].RGBb; |
| 118 |
Result[((y+3)*imgx+x+j)*3+1]:=Color[Pixel[16-j]].RGBg; |
| 119 |
Result[((y+3)*imgx+x+j)*3+2]:=Color[Pixel[16-j]].RGBr; |
| 120 |
END; |
| 121 |
FOR j:=0 TO 3 DO BEGIN |
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Result[((y+2)*imgx+x+j)*3+0]:=Color[Pixel[12-j]].RGBb; |
| 123 |
Result[((y+2)*imgx+x+j)*3+1]:=Color[Pixel[12-j]].RGBg; |
| 124 |
Result[((y+2)*imgx+x+j)*3+2]:=Color[Pixel[12-j]].RGBr; |
| 125 |
END; |
| 126 |
FOR j:=0 TO 3 DO BEGIN |
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Result[((y+1)*imgx+x+j)*3+0]:=Color[Pixel[8-j]].RGBb; |
| 128 |
Result[((y+1)*imgx+x+j)*3+1]:=Color[Pixel[8-j]].RGBg; |
| 129 |
Result[((y+1)*imgx+x+j)*3+2]:=Color[Pixel[8-j]].RGBr; |
| 130 |
END; |
| 131 |
FOR j:=0 TO 3 DO BEGIN |
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Result[((y+0)*imgx+x+j)*3+0]:=Color[Pixel[4-j]].RGBb; |
| 133 |
Result[((y+0)*imgx+x+j)*3+1]:=Color[Pixel[4-j]].RGBg; |
| 134 |
Result[((y+0)*imgx+x+j)*3+2]:=Color[Pixel[4-j]].RGBr; |
| 135 |
END; |
| 136 |
x:=x+4; |
| 137 |
IF x=imgx THEN BEGIN |
| 138 |
y:=y+4; |
| 139 |
x:=0; |
| 140 |
END; |
| 141 |
END; |
| 142 |
END; |
| 143 |
|
| 144 |
|
| 145 |
FUNCTION ImgdataToBmp(imgx,imgy,imgdepth,storetype:LongWord; imgdata:Tdata):Tdata; |
| 146 |
CONST BMPheader:Array[0..53] OF Byte= |
| 147 |
($42,$4D,0,0,0,0,0,0,0,0,54,0,0,0, |
| 148 |
40,0,0,0,0,0,0,0,0,0,0,0,1,0,$18,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0); |
| 149 |
VAR |
| 150 |
i,x,y:LongWord; |
| 151 |
BEGIN |
| 152 |
CASE storetype OF |
| 153 |
0: BEGIN |
| 154 |
SetLength(Result,imgx*imgy*3); |
| 155 |
FOR y:=0 TO imgy-1 DO BEGIN |
| 156 |
FOR x:=0 TO imgx-1 DO BEGIN |
| 157 |
Result[((imgx*y+x)*3)+0]:=Floor( ( (imgdata[(imgx*y+x)*2]+imgdata[(imgx*y+x)*2+1]*256) AND $000F ) / $000F * 255); |
| 158 |
Result[((imgx*y+x)*3)+1]:=Floor( ( (imgdata[(imgx*y+x)*2]+imgdata[(imgx*y+x)*2+1]*256) AND $00F0 ) / $00F0 * 255); |
| 159 |
Result[((imgx*y+x)*3)+2]:=Floor( ( (imgdata[(imgx*y+x)*2]+imgdata[(imgx*y+x)*2+1]*256) AND $0F00 ) / $0F00 * 255); |
| 160 |
END; |
| 161 |
END; |
| 162 |
END; |
| 163 |
1,2,8: BEGIN |
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SetLength(Result,imgx*imgy*3); |
| 165 |
FOR y:=0 TO imgy-1 DO BEGIN |
| 166 |
FOR x:=0 TO imgx-1 DO BEGIN |
| 167 |
Result[((imgx*y+x)*3)+0]:=Floor( ( (imgdata[(imgx*y+x)*2]+imgdata[(imgx*y+x)*2+1]*256) AND $001F ) / $001F * 255); |
| 168 |
Result[((imgx*y+x)*3)+1]:=Floor( ( (imgdata[(imgx*y+x)*2]+imgdata[(imgx*y+x)*2+1]*256) AND $03E0 ) / $03E0 * 255); |
| 169 |
Result[((imgx*y+x)*3)+2]:=Floor( ( (imgdata[(imgx*y+x)*2]+imgdata[(imgx*y+x)*2+1]*256) AND $7C00 ) / $7C00 * 255); |
| 170 |
END; |
| 171 |
END; |
| 172 |
END; |
| 173 |
9: BEGIN |
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Result:=DecompressImage(imgx,imgy,imgdata); |
| 175 |
END; |
| 176 |
END; |
| 177 |
Result:=RevertImage(imgx,imgy,24,Result); |
| 178 |
SetLength(Result,imgx*imgy*3+54); |
| 179 |
FOR i:=High(Result)-54 DOWNTO 0 DO Result[i+54]:=Result[i]; |
| 180 |
|
| 181 |
FOR i:=0 TO High(BMPheader) DO Result[i]:=BMPheader[i]; |
| 182 |
Result[2]:=((imgx*imgy*3+54) AND $000000FF); |
| 183 |
Result[3]:=((imgx*imgy*3+54) AND $0000FF00) DIV $100; |
| 184 |
Result[4]:=((imgx*imgy*3+54) AND $00FF0000) DIV $10000; |
| 185 |
Result[5]:=((imgx*imgy*3+54) AND $FF000000) DIV $1000000; |
| 186 |
Result[18]:=(imgx AND $000000FF) DIV $1; |
| 187 |
Result[19]:=(imgx AND $0000FF00) DIV $100; |
| 188 |
Result[20]:=(imgx AND $00FF0000) DIV $10000; |
| 189 |
Result[21]:=(imgx AND $FF000000) DIV $1000000; |
| 190 |
Result[22]:=(imgy AND $000000FF) DIV $1; |
| 191 |
Result[23]:=(imgy AND $0000FF00) DIV $100; |
| 192 |
Result[24]:=(imgy AND $00FF0000) DIV $10000; |
| 193 |
Result[25]:=(imgy AND $FF000000) DIV $1000000; |
| 194 |
Result[34]:=((imgx*imgy*3) AND $000000FF) DIV $1; |
| 195 |
Result[35]:=((imgx*imgy*3) AND $0000FF00) DIV $100; |
| 196 |
Result[36]:=((imgx*imgy*3) AND $00FF0000) DIV $10000; |
| 197 |
Result[37]:=((imgx*imgy*3) AND $FF000000) DIV $1000000; |
| 198 |
END; |
| 199 |
|
| 200 |
FUNCTION LoadImgData(fileid:LongWord):TImgPackage; |
| 201 |
{ VAR |
| 202 |
raw_addr:LongWord; |
| 203 |
storetype:Byte; |
| 204 |
imgx,imgy:Word; |
| 205 |
imgdepth:Byte; |
| 206 |
data:Tdata; |
| 207 |
datasize:LongWord;} |
| 208 |
BEGIN |
| 209 |
LoadDatFilePart(fileid,$9C,SizeOf(Result.raw_addr),@Result.raw_addr); |
| 210 |
LoadDatFilePart(fileid,$8C,SizeOf(Result.imgx),@Result.imgx); |
| 211 |
LoadDatFilePart(fileid,$8E,SizeOf(Result.imgy),@Result.imgy); |
| 212 |
LoadDatFilePart(fileid,$90,SizeOf(Result.storetype),@Result.storetype); |
| 213 |
|
| 214 |
CASE Result.storetype OF |
| 215 |
0,1,2: BEGIN |
| 216 |
Result.datasize:=Result.imgx*Result.imgy*2; |
| 217 |
Result.imgdepth:=16; |
| 218 |
END; |
| 219 |
8: BEGIN |
| 220 |
Result.datasize:=Result.imgx*Result.imgy*4; |
| 221 |
Result.imgdepth:=32; |
| 222 |
END; |
| 223 |
9: BEGIN |
| 224 |
Result.datasize:=Result.imgx*Result.imgy DIV 2; |
| 225 |
Result.imgdepth:=16; |
| 226 |
END; |
| 227 |
ELSE |
| 228 |
Exit; |
| 229 |
END; |
| 230 |
SetLength(Result.imgdata,Result.datasize); |
| 231 |
|
| 232 |
LoadRawFilePart(Result.raw_addr,Result.datasize,@Result.imgdata[0]); |
| 233 |
END; |
| 234 |
|
| 235 |
END. |
