source: oup/releases/0.32a/Unit6_imgfuncs.pas@ 1114

Last change on this file since 1114 was 35, checked in by alloc, 18 years ago
File size: 19.5 KB
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1unit Unit6_imgfuncs;
2interface
3uses Math, Dialogs, SysUtils, Classes, Unit3_data, Unit15_Classes;
4
5{
6type
7 TImgPackage=record
8 imgx,imgy:Word;
9 imgdepth:Byte;
10 storetype:Byte;
11 datasize:LongWord;
12 raw_addr:LongWord;
13 imgdata:Tdata;
14 end;
15}
16type
17 TImgDataType=Set of (DT_OniReverted,DT_Oni,DT_MipMapped,DT_Decoded32);
18
19type
20 TOniImage = class
21 private
22 FLoaded:Boolean;
23 FDataType:TImgDataType;
24 FData:Tdata;
25 FWidth,FHeight:Word;
26 FDepth:Byte;
27 FStoreType:Byte;
28
29 function ResizeImage(oldx,oldy:LongWord; img:Tdata):Tdata;
30 procedure RevertImage;
31 procedure DecodeImage;
32 procedure DecompressImage;
33 protected
34 public
35 property Loaded:Boolean read FLoaded;
36 property DataType:TImgDataType read FDataType;
37 property Width:Word read FWidth;
38 property Height:Word read FHeight;
39 property Depth:Byte read FDepth;
40 property StoreType:Byte read FStoreType;
41 property Data:Tdata read FData;
42
43 constructor Create;
44 function LoadFromTXMP(fileid:LongWord):Boolean;
45 function LoadFromTXMB(fileid:LongWord):Boolean;
46 function GetImageDataSize(fading:Boolean):LongWord;
47
48 function GetAsData:Tdata;
49 function GetAs32bit:Tdata;
50 function GetAsBMP:Tdata;
51 function LoadFromBMP(filename:String):Boolean;
52 function WriteToBMP(filename:String):Boolean;
53 function GetMipMappedImage(var faded:Tdata):Boolean;
54 published
55 end;
56
57
58implementation
59uses Unit2_functions;
60
61
62
63constructor TOniImage.Create;
64 begin
65 Self.FLoaded:=False;
66 Self.FDataType:=[];
67 SetLength(Self.FData,0);
68 Self.FWidth:=0;
69 Self.FHeight:=0;
70 Self.FDepth:=0;
71 Self.FStoreType:=0;
72 end;
73
74
75
76function TOniImage.ResizeImage(oldx,oldy:LongWord; img:Tdata):Tdata;
77 var
78 i,j:LongWord;
79 col,row,row_orig:LongWord;
80 begin
81 SetLength(Result,(oldx div 2)*(oldy div 2)*(Self.FDepth div 8));
82 row_orig:=0;
83 row:=0;
84 col:=0;
85 for i:=0 to (oldx*oldy)-1 do begin
86 if ((i mod oldx)=0) and (i>0) then begin
87 Inc(row_orig);
88 if (row_orig mod 2)=0 then begin
89 Inc(row);
90 col:=0;
91 end;
92 end;
93 if (row_orig mod 2)=0 then begin
94 if (i mod 2)=0 then begin
95 for j:=0 to (Self.FDepth div 8)-1 do
96 Result[((row*(oldx div 2))+col)*(Self.FDepth div 8)+j]:=img[(i*(Self.FDepth div 8))+j];
97 Inc(col);
98 end;
99 end;
100 end;
101 end;
102
103
104
105procedure TOniImage.RevertImage;
106 var
107 x,y,i:LongWord;
108 tempd:Tdata;
109 begin
110 SetLength(tempd, Self.FWidth * Self.FHeight *(Self.FDepth div 8));
111 for y:=0 to Self.FHeight-1 do
112 for x:=0 to Self.FWidth-1 do
113 for i:=0 to (Self.FDepth div 8)-1 do
114 tempd[((Self.FWidth*(Self.FHeight-1-y)+x)*(Self.FDepth div 8))+i]:=
115 Self.FData[(Self.FWidth*y+x)*(Self.FDepth div 8)+i];
116 for x:=0 to High(tempd) do
117 Self.FData[x]:=tempd[x];
118 if DT_OniReverted in Self.FDataType then
119 Self.FDataType:=Self.FDataType-[DT_OniReverted]
120 else
121 Self.FDataType:=Self.FDataType+[DT_OniReverted];
122 if DT_MipMapped in Self.FDataType then
123 Self.FDataType:=Self.FDataType-[DT_MipMapped];
124 end;
125
126
127
128procedure TOniImage.DecodeImage;
129 var
130 x,y:LongWord;
131 tempd:Tdata;
132 begin
133 if not (DT_Decoded32 in Self.FDataType) then begin
134 SetLength(tempd, Self.FWidth * Self.FHeight * 4);
135 case Self.FStoreType of
136 0: begin
137 for y:=0 to Self.FHeight-1 do begin
138 for x:=0 to Self.FWidth-1 do begin
139 tempd[((Self.FWidth*y+x)*4)+0]:=Floor( ( (Self.FData[(Self.FWidth*y+x)*2]+Self.FData[(Self.FWidth*y+x)*2+1]*256) AND $000F ) / $000F * 255);
140 tempd[((Self.FWidth*y+x)*4)+1]:=Floor( ( (Self.FData[(Self.FWidth*y+x)*2]+Self.FData[(Self.FWidth*y+x)*2+1]*256) AND $00F0 ) / $00F0 * 255);
141 tempd[((Self.FWidth*y+x)*4)+2]:=Floor( ( (Self.FData[(Self.FWidth*y+x)*2]+Self.FData[(Self.FWidth*y+x)*2+1]*256) AND $0F00 ) / $0F00 * 255);
142 tempd[((Self.FWidth*y+x)*4)+3]:=0;
143 end;
144 end;
145 end;
146 1,2: begin
147 for y:=0 to Self.FHeight-1 do begin
148 for x:=0 to Self.FWidth-1 do begin
149 tempd[((Self.FWidth*y+x)*4)+0]:=Floor( ( (Self.FData[(Self.FWidth*y+x)*2]+Self.FData[(Self.FWidth*y+x)*2+1]*256) AND $001F ) / $001F * 255);
150 tempd[((Self.FWidth*y+x)*4)+1]:=Floor( ( (Self.FData[(Self.FWidth*y+x)*2]+Self.FData[(Self.FWidth*y+x)*2+1]*256) AND $03E0 ) / $03E0 * 255);
151 tempd[((Self.FWidth*y+x)*4)+2]:=Floor( ( (Self.FData[(Self.FWidth*y+x)*2]+Self.FData[(Self.FWidth*y+x)*2+1]*256) AND $7C00 ) / $7C00 * 255);
152 tempd[((Self.FWidth*y+x)*4)+3]:=0;
153 end;
154 end;
155 end;
156 9: begin
157 DecompressImage;
158 end;
159 end;
160 Self.FDepth:=32;
161 if (Self.FStoreType<>9) AND (Self.FStoreType<>8) then begin
162 SetLength(Self.FData, Length(tempd));
163 for x:=0 to High(tempd) do
164 Self.FData[x]:=tempd[x];
165 end;
166 Self.FStoreType:=8;
167 if DT_Oni in Self.FDataType then
168 Self.FDataType:=Self.FDataType-[DT_Oni];
169 Self.FDataType:=Self.FDataType+[DT_Decoded32];
170 end;
171 if DT_MipMapped in Self.FDataType then
172 Self.FDataType:=Self.FDataType-[DT_MipMapped];
173 if DT_OniReverted in Self.FDataType then
174 Self.RevertImage;
175 end;
176
177
178
179procedure TOniImage.DecompressImage;
180 type
181 Tcolor=record
182 RGBb:Byte;
183 RGBg:Byte;
184 RGBr:Byte;
185 RGBa:Byte;
186 end;
187 var
188 i,j,x,y:LongWord;
189 color:Array[1..4] of Tcolor;
190 pixel:Array[1..16] of Byte;
191 tempd:Tdata;
192 begin
193 x:=0;
194 y:=0;
195 SetLength(tempd, Self.FWidth * Self.FHeight * 4);
196 for i:=0 to ((Self.FWidth * Self.FHeight) div 16)-1 do begin
197 Color[1].RGBb:=Floor(((Self.FData[(i*8)+0]+Self.FData[(i*8)+1]*256) and $001F) / $001F * 255);
198 Color[1].RGBg:=Floor(((Self.FData[(i*8)+0]+Self.FData[(i*8)+1]*256) and $07E0) / $07E0 * 255);
199 Color[1].RGBr:=Floor(((Self.FData[(i*8)+0]+Self.FData[(i*8)+1]*256) and $F800) / $F800 * 255);
200 Color[1].RGBa:=255;
201 Color[2].RGBb:=Floor(((Self.FData[(i*8)+2]+Self.FData[(i*8)+3]*256) and $001F) / $001F * 255);
202 Color[2].RGBg:=Floor(((Self.FData[(i*8)+2]+Self.FData[(i*8)+3]*256) and $07E0) / $07E0 * 255);
203 Color[2].RGBr:=Floor(((Self.FData[(i*8)+2]+Self.FData[(i*8)+3]*256) and $F800) / $F800 * 255);
204 Color[2].RGBa:=255;
205 Color[3].RGBb:=Floor( Color[1].RGBb/3*2 + Color[2].RGBb/3 );
206 Color[3].RGBg:=Floor( Color[1].RGBg/3*2 + Color[2].RGBg/3 );
207 Color[3].RGBr:=Floor( Color[1].RGBr/3*2 + Color[2].RGBr/3 );
208 Color[3].RGBa:=255;
209 Color[4].RGBb:=Floor( Color[1].RGBb/3 + Color[2].RGBb/3*2 );
210 Color[4].RGBg:=Floor( Color[1].RGBg/3 + Color[2].RGBg/3*2 );
211 Color[4].RGBr:=Floor( Color[1].RGBr/3 + Color[2].RGBr/3*2 );
212 Color[4].RGBa:=255;
213 Pixel[1]:=Floor( (Self.FData[(i*8)+4] and $C0) / $40 + 1 );
214 Pixel[2]:=Floor( (Self.FData[(i*8)+4] and $30) / $10 + 1 );
215 Pixel[3]:=Floor( (Self.FData[(i*8)+4] and $0C) / $04 + 1 );
216 Pixel[4]:=Floor( (Self.FData[(i*8)+4] and $03) + 1 );
217 Pixel[5]:=Floor( (Self.FData[(i*8)+5] and $C0) / $40 + 1 );
218 Pixel[6]:=Floor( (Self.FData[(i*8)+5] and $30) / $10 + 1 );
219 Pixel[7]:=Floor( (Self.FData[(i*8)+5] and $0C) / $04 + 1 );
220 Pixel[8]:=Floor( (Self.FData[(i*8)+5] and $03) + 1 );
221 Pixel[9]:=Floor( (Self.FData[(i*8)+6] and $C0) / $40 + 1 );
222 Pixel[10]:=Floor( (Self.FData[(i*8)+6] and $30) / $10 + 1 );
223 Pixel[11]:=Floor( (Self.FData[(i*8)+6] and $0C) / $04 + 1 );
224 Pixel[12]:=Floor( (Self.FData[(i*8)+6] and $03) + 1 );
225 Pixel[13]:=Floor( (Self.FData[(i*8)+7] and $C0) / $40 + 1 );
226 Pixel[14]:=Floor( (Self.FData[(i*8)+7] and $30) / $10 + 1 );
227 Pixel[15]:=Floor( (Self.FData[(i*8)+7] and $0C) / $04 + 1 );
228 Pixel[16]:=Floor( (Self.FData[(i*8)+7] and $03) + 1 );
229 for j:=0 to 3 do begin
230 tempd[((y+3)*Self.FWidth+x+j)*4+0]:=Color[Pixel[16-j]].RGBb;
231 tempd[((y+3)*Self.FWidth+x+j)*4+1]:=Color[Pixel[16-j]].RGBg;
232 tempd[((y+3)*Self.FWidth+x+j)*4+2]:=Color[Pixel[16-j]].RGBr;
233 tempd[((y+3)*Self.FWidth+x+j)*4+3]:=0;
234 end;
235 for j:=0 to 3 do begin
236 tempd[((y+2)*Self.FWidth+x+j)*4+0]:=Color[Pixel[12-j]].RGBb;
237 tempd[((y+2)*Self.FWidth+x+j)*4+1]:=Color[Pixel[12-j]].RGBg;
238 tempd[((y+2)*Self.FWidth+x+j)*4+2]:=Color[Pixel[12-j]].RGBr;
239 tempd[((y+2)*Self.FWidth+x+j)*4+3]:=0;
240 end;
241 for j:=0 to 3 do begin
242 tempd[((y+1)*Self.FWidth+x+j)*4+0]:=Color[Pixel[8-j]].RGBb;
243 tempd[((y+1)*Self.FWidth+x+j)*4+1]:=Color[Pixel[8-j]].RGBg;
244 tempd[((y+1)*Self.FWidth+x+j)*4+2]:=Color[Pixel[8-j]].RGBr;
245 tempd[((y+1)*Self.FWidth+x+j)*4+3]:=0;
246 end;
247 for j:=0 to 3 do begin
248 tempd[((y+0)*Self.FWidth+x+j)*4+0]:=Color[Pixel[4-j]].RGBb;
249 tempd[((y+0)*Self.FWidth+x+j)*4+1]:=Color[Pixel[4-j]].RGBg;
250 tempd[((y+0)*Self.FWidth+x+j)*4+2]:=Color[Pixel[4-j]].RGBr;
251 tempd[((y+0)*Self.FWidth+x+j)*4+3]:=0;
252 end;
253 x:=x+4;
254 if x=Self.FWidth THEN begin
255 y:=y+4;
256 x:=0;
257 end;
258 end;
259 SetLength(Self.FData, Length(tempd));
260 for i:=0 to High(tempd) do
261 Self.FData[i]:=tempd[i];
262 if DT_MipMapped in Self.FDataType then
263 Self.FDataType:=Self.FDataType-[DT_MipMapped];
264 end;
265
266
267
268
269
270function TOniImage.LoadFromTXMP(fileid:LongWord):Boolean;
271 var
272 img_addr:LongWord;
273 begin
274 Result:=True;
275 OniDataConnection.LoadDatFilePart(fileid,$8C,SizeOf(Self.FWidth),@Self.FWidth);
276 OniDataConnection.LoadDatFilePart(fileid,$8E,SizeOf(Self.FHeight),@Self.FHeight);
277 OniDataConnection.LoadDatFilePart(fileid,$90,SizeOf(Self.FStoreType),@Self.FStoreType);
278 if not OniDataConnection.OSisMac then
279 OniDataConnection.LoadDatFilePart(fileid,$9C,SizeOf(img_addr),@img_addr)
280 else
281 OniDataConnection.LoadDatFilePart(fileid,$A0,SizeOf(img_addr),@img_addr);
282
283 case Self.FStoreType of
284 0,1,2: begin
285 SetLength(Self.FData, Self.FWidth * Self.FHeight * 2);
286 Self.FDepth:=16;
287 end;
288 8: begin
289 SetLength(Self.FData, Self.FWidth * Self.FHeight * 4);
290 Self.FDepth:=32;
291 end;
292 9: begin
293 SetLength(Self.FData, Self.FWidth * Self.FHeight div 2);
294 Self.FDepth:=16;
295 end;
296 else
297 Result:=False;
298 Exit;
299 end;
300
301 if not OniDataConnection.OSisMac then
302 OniDataConnection.LoadRawFile(fileid,$9C,@Self.FData[0])
303 else
304 OniDataConnection.LoadRawFile(fileid,$A0,@Self.FData[0]);
305
306 Self.FDataType:=[DT_OniReverted,DT_Oni];
307 end;
308
309
310
311function TOniImage.LoadFromTXMB(fileid:LongWord):Boolean;
312 type
313 TImg=record
314 imgx,imgy:Word;
315 imgdepth:Byte;
316 storetype:Byte;
317 datasize:LongWord;
318 raw_addr:LongWord;
319 imgdata:Tdata;
320 end;
321 var
322 i,x,y,x2,y2,pixelid,imgid:LongWord;
323 rows,cols:Word;
324 linkcount:LongWord;
325 link:LongWord;
326 images_decoded:Array of TOniImage;
327 x_start,y_start:LongWord;
328 begin
329 OniDataConnection.LoadDatFilePart(fileid,$10,SizeOf(Self.FWidth),@Self.FWidth);
330 OniDataConnection.LoadDatFilePart(fileid,$12,SizeOf(Self.FHeight),@Self.FHeight);
331 OniDataConnection.LoadDatFilePart(fileid,$18,SizeOf(cols),@cols);
332 OniDataConnection.LoadDatFilePart(fileid,$1A,SizeOf(rows),@rows);
333 OniDataConnection.LoadDatFilePart(fileid,$1C,SizeOf(linkcount),@linkcount);
334 SetLength(images_decoded,linkcount);
335 for i:=0 to linkcount-1 do begin
336 OniDataConnection.LoadDatFilePart(fileid,$20+i*4,SizeOf(link),@link);
337 link:=link div 256;
338 images_decoded[i]:=TOniImage.Create;
339 images_decoded[i].LoadFromTXMP(link);
340 images_decoded[i].DecodeImage;
341 images_decoded[i].RevertImage;
342 end;
343 SetLength(Self.FData, Self.FWidth * Self.FHeight * 4);
344 for y:=0 to rows-1 do begin
345 for x:=0 to cols-1 do begin
346 imgid:=y*cols+x;
347 x_start:=0;
348 y_start:=0;
349 for i:=0 to x do if i<x then x_start:=x_start+images_decoded[i].Width;
350 for i:=0 to y do if i<y then y_start:=y_start+images_decoded[i].Height;
351 for y2:=0 to images_decoded[imgid].Height-1 do begin
352 for x2:=0 to images_decoded[imgid].Width-1 do begin
353 if ( (x_start+x2)<Self.FWidth ) and ( (y_start+y2)<Self.FHeight ) then begin
354 pixelid:=y_start*Self.FWidth+x_start+y2*Self.FWidth+x2;
355 Self.FData[pixelid*4+0]:=images_decoded[imgid].Data[(y2*images_decoded[imgid].Width+x2)*4+0];
356 Self.FData[pixelid*4+1]:=images_decoded[imgid].Data[(y2*images_decoded[imgid].Width+x2)*4+1];
357 Self.FData[pixelid*4+2]:=images_decoded[imgid].Data[(y2*images_decoded[imgid].Width+x2)*4+2];
358 Self.FData[pixelid*4+3]:=images_decoded[imgid].Data[(y2*images_decoded[imgid].Width+x2)*4+3];
359 end;
360 end;
361 end;
362 end;
363 end;
364 for i:=0 to linkcount-1 do
365 images_decoded[i].Free;
366 Self.FDepth:=32;
367 Self.FStoreType:=1;
368 Self.FDataType:=[DT_Decoded32];
369 Self.RevertImage;
370 end;
371
372
373
374function TOniImage.GetImageDataSize(fading:Boolean):LongWord;
375 var
376 size:LongWord;
377 x,y:Word;
378 bpp:Byte;
379 begin
380 case Self.FStoreType of
381 9: bpp:=8;
382 0,1,2: bpp:=16;
383 8: bpp:=32;
384 else
385 Result:=0;
386 Exit;
387 end;
388
389 x:=Self.FWidth;
390 y:=Self.FHeight;
391 size:=x*y*bpp div 8;
392 if fading then begin
393 repeat
394 x:=x div 2;
395 y:=y div 2;
396 size:=size+x*y*bpp div 8;
397 until (x=1) or (y=1);
398 end;
399 Result:=size;
400 end;
401
402
403
404function TOniImage.GetAsData:Tdata;
405 var
406 i: Integer;
407 revert:Boolean;
408 begin
409// if not (DT_Decoded32 in Self.FDataType) then
410// Self.DecodeImage;
411 if not (DT_OniReverted in Self.FDataType) then begin
412 revert:=True;
413 Self.RevertImage;
414 end else revert:=False;
415 SetLength(Result, Length(Self.FData));
416 for i:=0 to High(Result) do
417 Result[i]:=Self.FData[i];
418 if revert then
419 Self.RevertImage;
420 end;
421
422
423
424function TOniImage.GetAs32bit:Tdata;
425 var
426 i:Integer;
427 begin
428 if not (DT_Decoded32 in Self.FDataType) then
429 Self.DecodeImage;
430 SetLength(Result,Length(Self.FData));
431 for i:=0 to High(Result) do
432 Result[i]:=Self.FData[i];
433 end;
434
435
436
437function TOniImage.GetAsBMP:Tdata;
438 const BMPheader:Array[0..53] of Byte=
439 ($42,$4D,0,0,0,0,0,0,0,0,54,0,0,0,
440 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);
441 var
442 i,x,y:LongWord;
443 begin
444 if not (DT_Decoded32 in Self.FDataType) then
445 Self.DecodeImage;
446
447 SetLength(Result, Self.FWidth * Self.FHeight * 3);
448 for y:=0 to Self.FHeight-1 do begin
449 for x:=0 to Self.FWidth-1 do begin
450 Result[((Self.FWidth*y+x)*3)+0]:=Self.FData[(Self.FWidth*y+x)*4+0];
451 Result[((Self.FWidth*y+x)*3)+1]:=Self.FData[(Self.FWidth*y+x)*4+1];
452 Result[((Self.FWidth*y+x)*3)+2]:=Self.FData[(Self.FWidth*y+x)*4+2];
453 end;
454 end;
455
456 SetLength(Result, Self.FWidth * Self.FHeight * 3 + 54);
457 for i:=High(Result)-54 downto 0 do
458 Result[i+54]:=Result[i];
459
460 for i:=0 to High(BMPheader) do
461 Result[i]:=BMPheader[i];
462 Result[2]:=((Self.FWidth*Self.FHeight*3+54) and $000000FF) div $1;
463 Result[3]:=((Self.FWidth*Self.FHeight*3+54) and $0000FF00) div $100;
464 Result[4]:=((Self.FWidth*Self.FHeight*3+54) and $00FF0000) div $10000;
465 Result[5]:=((Self.FWidth*Self.FHeight*3+54) and $FF000000) div $1000000;
466 Result[18]:=(Self.FWidth and $000000FF) div $1;
467 Result[19]:=(Self.FWidth and $0000FF00) div $100;
468 Result[20]:=(Self.FWidth and $00FF0000) div $10000;
469 Result[21]:=(Self.FWidth and $FF000000) div $1000000;
470 Result[22]:=(Self.FHeight and $000000FF) div $1;
471 Result[23]:=(Self.FHeight and $0000FF00) div $100;
472 Result[24]:=(Self.FHeight and $00FF0000) div $10000;
473 Result[25]:=(Self.FHeight and $FF000000) div $1000000;
474 Result[34]:=((Self.FWidth*Self.FHeight*3) and $000000FF) div $1;
475 Result[35]:=((Self.FWidth*Self.FHeight*3) and $0000FF00) div $100;
476 Result[36]:=((Self.FWidth*Self.FHeight*3) and $00FF0000) div $10000;
477 Result[37]:=((Self.FWidth*Self.FHeight*3) and $FF000000) div $1000000;
478 end;
479
480
481
482function TOniImage.LoadFromBMP(filename:String):Boolean;
483 var
484 filestream:TFileStream;
485 tempd:Tdata;
486
487 x,y:LongWord;
488 begin
489 filestream:=TFileStream.Create(filename, fmOpenRead);
490 SetLength(tempd,filestream.Size);
491 filestream.Read(tempd[0],filestream.Size);
492 filestream.Free;
493
494 if not((tempd[00]=$42) and (tempd[01]=$4D)) then begin
495 Result:=False;
496 ShowMessage('Not a standard 24bit bitmap');
497 Exit;
498 end;
499 if not(tempd[10]=54) then begin
500 Result:=False;
501 ShowMessage('Imagedata has to start at 0x54');
502 Exit;
503 end;
504 if not(tempd[14]=40) then begin
505 Result:=False;
506 ShowMessage('Second bitmap header has to have 40 bytes');
507 Exit;
508 end;
509 if not(tempd[28]=24) then begin
510 Result:=False;
511 ShowMessage('Bitmap has to have 24bits');
512 Exit;
513 end;
514 if not(tempd[30]=0) then begin
515 Result:=False;
516 ShowMessage('Bitmap has to be uncompressed');
517 Exit;
518 end;
519
520 Self.FWidth :=tempd[18]+tempd[19]*256+tempd[20]*256*256+tempd[21]*256*256*256;
521 Self.FHeight:=tempd[22]+tempd[23]*256+tempd[24]*256*256+tempd[25]*256*256*256;
522 Self.FDepth:=32;
523 Self.FStoreType:=8;
524
525 SetLength(Self.FData, Self.FWidth * Self.FHeight * Self.FDepth div 8);
526 for y:=0 to Self.FHeight-1 do begin
527 for x:=0 to Self.FWidth-1 do begin
528 Self.FData[((Self.FWidth*y+x)*4)+0]:=tempd[54+(Self.FWidth*y+x)*3+0];
529 Self.FData[((Self.FWidth*y+x)*4)+1]:=tempd[54+(Self.FWidth*y+x)*3+1];
530 Self.FData[((Self.FWidth*y+x)*4)+2]:=tempd[54+(Self.FWidth*y+x)*3+2];
531 Self.FData[((Self.FWidth*y+x)*4)+3]:=0;
532 end;
533 end;
534
535 Self.FDataType:=[DT_Decoded32];
536 end;
537
538
539
540function TOniImage.WriteToBMP(filename:String):Boolean;
541 var
542 filestream:TFileStream;
543 tempd:Tdata;
544 begin
545 tempd:=Self.GetAsBMP;
546 filestream:=TFileStream.Create(filename,fmCreate);
547 filestream.Write(tempd[0],Length(tempd));
548 filestream.Free;
549 end;
550
551
552
553function TOniImage.GetMipMappedImage(var faded:Tdata):Boolean;
554 var
555 i:LongWord;
556 x,y:Word;
557 fadelvldata:Tdata;
558 revert:Boolean;
559 begin
560 Result:=False;
561
562// if not (DT_Decoded32 in Self.FDataType) then
563// Self.DecodeImage;
564 if not (DT_OniReverted in Self.FDataType) then begin
565 revert:=True;
566 Self.RevertImage;
567 end else revert:=False;
568
569 x:=Self.FWidth;
570 y:=Self.FHeight;
571 SetLength(faded,x*y*Self.FDepth div 8);
572 SetLength(fadelvldata,x*y*Self.FDepth div 8);
573 for i:=0 to Length(faded)-1 do begin
574 faded[i]:=Self.FData[i];
575 fadelvldata[i]:=Self.FData[i];
576 end;
577 repeat
578 fadelvldata:=Self.ResizeImage(x,y,fadelvldata);
579 x:=x div 2;
580 y:=y div 2;
581 SetLength(faded,Length(faded)+x*y*Self.FDepth div 8);
582 for i:=0 to Length(fadelvldata)-1 do
583 faded[Length(faded)-x*y*Self.FDepth div 8+i]:=fadelvldata[i];
584 until (x=1) or (y=1) or ((x mod 2)=1) or ((y mod 2)=1);
585 if (x>1) and (y>1) then Exit;
586 Result:=True;
587
588 if revert then
589 Self.RevertImage;
590 end;
591
592
593end.
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