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
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
|
/**************************************************************
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_filter.hxx"
#include "rtl/alloc.h"
#include <vcl/graph.hxx>
#include <vcl/bmpacc.hxx>
#include <vcl/svapp.hxx>
#include <svtools/fltcall.hxx>
#include <svl/solar.hrc>
#include <svtools/FilterConfigItem.hxx>
//============================ PCDReader ==================================
// Diese Aufloesungen sind in einer PCD-Datei enthalten:
enum PCDResolution {
PCDRES_BASE16, // 192 x 128
PCDRES_BASE4, // 384 x 256
PCDRES_BASE, // 768 x 512
// Die folgenden sind komprimiert und koennen
// von uns NICHT gelesen werden:
PCDRES_4BASE, // 1536 x 1024
PCDRES_16BASE // 3072 x 3072
};
class PCDReader {
private:
sal_Bool bStatus;
sal_uLong nLastPercent;
SvStream* pPCD;
BitmapWriteAccess* mpAcc;
sal_uInt8 nOrientation; // Ausrichtung des Bildes in der PCD-Datei:
// 0 - Turmspitze zeigt nach oben
// 1 - Turmspitze zeigt nach rechts
// 2 - Turmspitze zeigt nach unten
// 3 - Turmspitze zeigt nach links
PCDResolution eResolution; // Welche Aufloesung wir haben wollen
sal_uLong nWidth; // Breite des PCD-Bildes
sal_uLong nHeight; // Hoehe des PCD-Bildes
sal_uLong nImagePos; // Position des Bildes in der PCD-Datei
// Temporare BLue-Green-Red-Bitmap
sal_uLong nBMPWidth;
sal_uLong nBMPHeight;
void MayCallback(sal_uLong nPercent);
void CheckPCDImagePacFile();
// Prueft, ob es eine Photo-CD-Datei mit 'Image Pac' ist.
void ReadOrientation();
// Liest die Ausrichtung und setzt nOrientation
void ReadImage(sal_uLong nMinPercent, sal_uLong nMaxPercent);
public:
PCDReader() {}
~PCDReader() {}
sal_Bool ReadPCD( SvStream & rPCD, Graphic & rGraphic, FilterConfigItem* pConfigItem );
};
//=================== Methoden von PCDReader ==============================
sal_Bool PCDReader::ReadPCD( SvStream & rPCD, Graphic & rGraphic, FilterConfigItem* pConfigItem )
{
Bitmap aBmp;
bStatus = sal_True;
nLastPercent = 0;
pPCD = &rPCD;
MayCallback( 0 );
// Ist es eine PCD-Datei mit Bild ? ( setzt bStatus == sal_False, wenn nicht ):
CheckPCDImagePacFile();
// Orientierung des Bildes einlesen:
ReadOrientation();
// Welche Aufloesung wollen wir ?:
eResolution = PCDRES_BASE;
if ( pConfigItem )
{
sal_Int32 nResolution = pConfigItem->ReadInt32( String( RTL_CONSTASCII_USTRINGPARAM( "Resolution" ) ), 2 );
if ( nResolution == 1 )
eResolution = PCDRES_BASE4;
else if ( nResolution == 0 )
eResolution = PCDRES_BASE16;
}
// Groesse und Position (Position in PCD-Datei) des Bildes bestimmen:
switch (eResolution)
{
case PCDRES_BASE16 :
nWidth = 192;
nHeight = 128;
nImagePos = 8192;
break;
case PCDRES_BASE4 :
nWidth = 384;
nHeight = 256;
nImagePos = 47104;
break;
case PCDRES_BASE :
nWidth = 768;
nHeight = 512;
nImagePos = 196608;
break;
default:
bStatus = sal_False;
}
if ( bStatus )
{
if ( ( nOrientation & 0x01 ) == 0 )
{
nBMPWidth = nWidth;
nBMPHeight = nHeight;
}
else
{
nBMPWidth = nHeight;
nBMPHeight = nWidth;
}
aBmp = Bitmap( Size( nBMPWidth, nBMPHeight ), 24 );
if ( ( mpAcc = aBmp.AcquireWriteAccess() ) == sal_False )
return sal_False;
ReadImage( 5 ,65 );
aBmp.ReleaseAccess( mpAcc ), mpAcc = NULL;
rGraphic = aBmp;
}
return bStatus;
}
// -------------------------------------------------------------------------------------------
void PCDReader::MayCallback(sal_uLong /*nPercent*/)
{
/*
if ( nPercent >= nLastPercent + 3 )
{
nLastPercent=nPercent;
if ( pCallback != NULL && nPercent <= 100 && bStatus == sal_True )
{
if ( ( (*pCallback)( pCallerData, (sal_uInt16)nPercent ) ) == sal_True )
bStatus = sal_False;
}
}
*/
}
// -------------------------------------------------------------------------------------------
void PCDReader::CheckPCDImagePacFile()
{
char Buf[ 8 ];
pPCD->Seek( 2048 );
pPCD->Read( Buf, 7 );
Buf[ 7 ] = 0;
if ( ByteString( Buf ).CompareTo( "PCD_IPI" ) != COMPARE_EQUAL )
bStatus = sal_False;
}
// -------------------------------------------------------------------------------------------
void PCDReader::ReadOrientation()
{
if ( bStatus == sal_False )
return;
pPCD->Seek( 194635 );
*pPCD >> nOrientation;
nOrientation &= 0x03;
}
// -------------------------------------------------------------------------------------------
void PCDReader::ReadImage(sal_uLong nMinPercent, sal_uLong nMaxPercent)
{
sal_uLong nx,ny,nW2,nH2,nYPair,ndy,nXPair;
long nL,nCb,nCr,nRed,nGreen,nBlue;
sal_uInt8 * pt;
sal_uInt8 * pL0; // Luminanz fuer jeden Pixel der 1. Zeile des aktuellen Zeilen-Paars
sal_uInt8 * pL1; // Luminanz fuer jeden Pixel der 2. Zeile des aktuellen Zeilen-Paars
sal_uInt8 * pCb; // Blau-Chrominanz fuer je 2x2 Pixel des aktuellen Zeilen-Paars
sal_uInt8 * pCr; // Rot-Chrominanz fuer je 2x2 Pixel des aktuellen Zeilen-Paars
sal_uInt8 * pL0N, * pL1N, * pCbN, * pCrN; // wie oben, nur fuer das naechste Zeilen-Paar
if ( bStatus == sal_False )
return;
nW2=nWidth>>1;
nH2=nHeight>>1;
pL0 =(sal_uInt8*)rtl_allocateMemory( nWidth );
pL1 =(sal_uInt8*)rtl_allocateMemory( nWidth );
pCb =(sal_uInt8*)rtl_allocateMemory( nW2+1 );
pCr =(sal_uInt8*)rtl_allocateMemory( nW2+1 );
pL0N=(sal_uInt8*)rtl_allocateMemory( nWidth );
pL1N=(sal_uInt8*)rtl_allocateMemory( nWidth );
pCbN=(sal_uInt8*)rtl_allocateMemory( nW2+1 );
pCrN=(sal_uInt8*)rtl_allocateMemory( nW2+1 );
if ( pL0 == NULL || pL1 == NULL || pCb == NULL || pCr == NULL ||
pL0N == NULL || pL1N == NULL || pCbN == NULL || pCrN == NULL)
{
rtl_freeMemory((void*)pL0 );
rtl_freeMemory((void*)pL1 );
rtl_freeMemory((void*)pCb );
rtl_freeMemory((void*)pCr );
rtl_freeMemory((void*)pL0N);
rtl_freeMemory((void*)pL1N);
rtl_freeMemory((void*)pCbN);
rtl_freeMemory((void*)pCrN);
bStatus = sal_False;
return;
}
pPCD->Seek( nImagePos );
// naechstes Zeilen-Paar := erstes Zeile-Paar:
pPCD->Read( pL0N, nWidth );
pPCD->Read( pL1N, nWidth );
pPCD->Read( pCbN, nW2 );
pPCD->Read( pCrN, nW2 );
pCbN[ nW2 ] = pCbN[ nW2 - 1 ];
pCrN[ nW2 ] = pCrN[ nW2 - 1 ];
for ( nYPair = 0; nYPair < nH2; nYPair++ )
{
// aktuelles Zeilen-Paar := naechstes Zeilen-Paar
pt=pL0; pL0=pL0N; pL0N=pt;
pt=pL1; pL1=pL1N; pL1N=pt;
pt=pCb; pCb=pCbN; pCbN=pt;
pt=pCr; pCr=pCrN; pCrN=pt;
// naechstes Zeilen-Paar holen:
if ( nYPair < nH2 - 1 )
{
pPCD->Read( pL0N, nWidth );
pPCD->Read( pL1N, nWidth );
pPCD->Read( pCbN, nW2 );
pPCD->Read( pCrN, nW2 );
pCbN[nW2]=pCbN[ nW2 - 1 ];
pCrN[nW2]=pCrN[ nW2 - 1 ];
}
else
{
for ( nXPair = 0; nXPair < nW2; nXPair++ )
{
pCbN[ nXPair ] = pCb[ nXPair ];
pCrN[ nXPair ] = pCr[ nXPair ];
}
}
// Schleife uber die beiden Zeilen des Zeilen-Paars:
for ( ndy = 0; ndy < 2; ndy++ )
{
ny = ( nYPair << 1 ) + ndy;
// Schleife ueber X:
for ( nx = 0; nx < nWidth; nx++ )
{
// nL,nCb,nCr fuer den Pixel nx,ny holen/berechenen:
nXPair = nx >> 1;
if ( ndy == 0 )
{
nL = (long)pL0[ nx ];
if (( nx & 1 ) == 0 )
{
nCb = (long)pCb[ nXPair ];
nCr = (long)pCr[ nXPair ];
}
else
{
nCb = ( ( (long)pCb[ nXPair ] ) + ( (long)pCb[ nXPair + 1 ] ) ) >> 1;
nCr = ( ( (long)pCr[ nXPair ] ) + ( (long)pCr[ nXPair + 1 ] ) ) >> 1;
}
}
else {
nL = pL1[ nx ];
if ( ( nx & 1 ) == 0 )
{
nCb = ( ( (long)pCb[ nXPair ] ) + ( (long)pCbN[ nXPair ] ) ) >> 1;
nCr = ( ( (long)pCr[ nXPair ] ) + ( (long)pCrN[ nXPair ] ) ) >> 1;
}
else
{
nCb = ( ( (long)pCb[ nXPair ] ) + ( (long)pCb[ nXPair + 1 ] ) +
( (long)pCbN[ nXPair ] ) + ( (long)pCbN[ nXPair + 1 ] ) ) >> 2;
nCr = ( ( (long)pCr[ nXPair ] ) + ( (long)pCr[ nXPair + 1] ) +
( (long)pCrN[ nXPair ] ) + ( (long)pCrN[ nXPair + 1 ] ) ) >> 2;
}
}
// Umwandlung von nL,nCb,nCr in nRed,nGreen,nBlue:
nL *= 89024L;
nCb -= 156;
nCr -= 137;
nRed = ( nL + nCr * 119374L + 0x8000 ) >> 16;
if ( nRed < 0 )
nRed = 0;
if ( nRed > 255)
nRed = 255;
nGreen = ( nL - nCb * 28198L - nCr * 60761L + 0x8000 ) >> 16;
if ( nGreen < 0 )
nGreen = 0;
if ( nGreen > 255 )
nGreen = 255;
nBlue = ( nL + nCb * 145352L + 0x8000 ) >> 16;
if ( nBlue < 0 )
nBlue = 0;
if ( nBlue > 255 )
nBlue = 255;
// Farbwert in pBMPMap eintragen:
if ( nOrientation < 2 )
{
if ( nOrientation == 0 )
mpAcc->SetPixel( ny, nx, BitmapColor( (sal_uInt8)nRed, (sal_uInt8)nGreen, (sal_uInt8)nBlue ) );
else
mpAcc->SetPixel( nWidth - 1 - nx, ny, BitmapColor( (sal_uInt8)nRed, (sal_uInt8)nGreen, (sal_uInt8)nBlue ) );
}
else
{
if ( nOrientation == 2 )
mpAcc->SetPixel( nHeight - 1 - ny, ( nWidth - 1 - nx ), BitmapColor( (sal_uInt8)nRed, (sal_uInt8)nGreen, (sal_uInt8)nBlue ) );
else
mpAcc->SetPixel( nx, ( nHeight - 1 - ny ), BitmapColor( (sal_uInt8)nRed, (sal_uInt8)nGreen, (sal_uInt8)nBlue ) );
}
}
}
if ( pPCD->GetError() )
bStatus = sal_False;
MayCallback( nMinPercent + ( nMaxPercent - nMinPercent ) * nYPair / nH2 );
if ( bStatus == sal_False )
break;
}
rtl_freeMemory((void*)pL0 );
rtl_freeMemory((void*)pL1 );
rtl_freeMemory((void*)pCb );
rtl_freeMemory((void*)pCr );
rtl_freeMemory((void*)pL0N);
rtl_freeMemory((void*)pL1N);
rtl_freeMemory((void*)pCbN);
rtl_freeMemory((void*)pCrN);
}
//================== GraphicImport - die exportierte Funktion ================
extern "C" sal_Bool __LOADONCALLAPI GraphicImport(SvStream & rStream, Graphic & rGraphic, FilterConfigItem* pConfigItem, sal_Bool )
{
PCDReader aPCDReader;
return aPCDReader.ReadPCD( rStream, rGraphic, pConfigItem );
}
|
