qbmphandler.cpp

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1/****************************************************************************-
2**-
3** Copyright (C) 2016 The Qt Company Ltd.-
4** Contact: https://www.qt.io/licensing/-
5**-
6** This file is part of the QtGui module of the Qt Toolkit.-
7**-
8** $QT_BEGIN_LICENSE:LGPL$-
9** Commercial License Usage-
10** Licensees holding valid commercial Qt licenses may use this file in-
11** accordance with the commercial license agreement provided with the-
12** Software or, alternatively, in accordance with the terms contained in-
13** a written agreement between you and The Qt Company. For licensing terms-
14** and conditions see https://www.qt.io/terms-conditions. For further-
15** information use the contact form at https://www.qt.io/contact-us.-
16**-
17** GNU Lesser General Public License Usage-
18** Alternatively, this file may be used under the terms of the GNU Lesser-
19** General Public License version 3 as published by the Free Software-
20** Foundation and appearing in the file LICENSE.LGPL3 included in the-
21** packaging of this file. Please review the following information to-
22** ensure the GNU Lesser General Public License version 3 requirements-
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.-
24**-
25** GNU General Public License Usage-
26** Alternatively, this file may be used under the terms of the GNU-
27** General Public License version 2.0 or (at your option) the GNU General-
28** Public license version 3 or any later version approved by the KDE Free-
29** Qt Foundation. The licenses are as published by the Free Software-
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3-
31** included in the packaging of this file. Please review the following-
32** information to ensure the GNU General Public License requirements will-
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and-
34** https://www.gnu.org/licenses/gpl-3.0.html.-
35**-
36** $QT_END_LICENSE$-
37**-
38****************************************************************************/-
39-
40#include "private/qbmphandler_p.h"-
41-
42#ifndef QT_NO_IMAGEFORMAT_BMP-
43-
44#include <qimage.h>-
45#include <qvariant.h>-
46#include <qvector.h>-
47-
48QT_BEGIN_NAMESPACE-
49-
50static void swapPixel01(QImage *image) // 1-bpp: swap 0 and 1 pixels-
51{-
52 int i;-
53 if (image->depth() == 1 && image->colorCount() == 2) {
image->depth() == 1Description
TRUEnever evaluated
FALSEnever evaluated
image->colorCount() == 2Description
TRUEnever evaluated
FALSEnever evaluated
0
54 uint *p = (uint *)image->bits();-
55 int nbytes = image->byteCount();-
56 for (i=0; i<nbytes/4; i++) {
i<nbytes/4Description
TRUEnever evaluated
FALSEnever evaluated
0
57 *p = ~*p;-
58 p++;-
59 }
never executed: end of block
0
60 uchar *p2 = (uchar *)p;-
61 for (i=0; i<(nbytes&3); i++) {
i<(nbytes&3)Description
TRUEnever evaluated
FALSEnever evaluated
0
62 *p2 = ~*p2;-
63 p2++;-
64 }
never executed: end of block
0
65 QRgb t = image->color(0); // swap color 0 and 1-
66 image->setColor(0, image->color(1));-
67 image->setColor(1, t);-
68 }
never executed: end of block
0
69}
never executed: end of block
0
70-
71/*-
72 QImageIO::defineIOHandler("BMP", "^BM", 0,-
73 read_bmp_image, write_bmp_image);-
74*/-
75-
76/*****************************************************************************-
77 BMP (DIB) image read/write functions-
78 *****************************************************************************/-
79-
80const int BMP_FILEHDR_SIZE = 14; // size of BMP_FILEHDR data-
81-
82static QDataStream &operator>>(QDataStream &s, BMP_FILEHDR &bf)-
83{ // read file header-
84 s.readRawData(bf.bfType, 2);-
85 s >> bf.bfSize >> bf.bfReserved1 >> bf.bfReserved2 >> bf.bfOffBits;-
86 return s;
never executed: return s;
0
87}-
88-
89static QDataStream &operator<<(QDataStream &s, const BMP_FILEHDR &bf)-
90{ // write file header-
91 s.writeRawData(bf.bfType, 2);-
92 s << bf.bfSize << bf.bfReserved1 << bf.bfReserved2 << bf.bfOffBits;-
93 return s;
never executed: return s;
0
94}-
95-
96-
97const int BMP_OLD = 12; // old Windows/OS2 BMP size-
98const int BMP_WIN = 40; // Windows BMP v3 size-
99const int BMP_OS2 = 64; // new OS/2 BMP size-
100const int BMP_WIN4 = 108; // Windows BMP v4 size-
101const int BMP_WIN5 = 124; // Windows BMP v5 size-
102-
103const int BMP_RGB = 0; // no compression-
104const int BMP_RLE8 = 1; // run-length encoded, 8 bits-
105const int BMP_RLE4 = 2; // run-length encoded, 4 bits-
106const int BMP_BITFIELDS = 3; // RGB values encoded in data as bit-fields-
107-
108-
109static QDataStream &operator>>(QDataStream &s, BMP_INFOHDR &bi)-
110{-
111 s >> bi.biSize;-
112 if (bi.biSize == BMP_WIN || bi.biSize == BMP_OS2 || bi.biSize == BMP_WIN4 || bi.biSize == BMP_WIN5) {
bi.biSize == BMP_WINDescription
TRUEnever evaluated
FALSEnever evaluated
bi.biSize == BMP_OS2Description
TRUEnever evaluated
FALSEnever evaluated
bi.biSize == BMP_WIN4Description
TRUEnever evaluated
FALSEnever evaluated
bi.biSize == BMP_WIN5Description
TRUEnever evaluated
FALSEnever evaluated
0
113 s >> bi.biWidth >> bi.biHeight >> bi.biPlanes >> bi.biBitCount;-
114 s >> bi.biCompression >> bi.biSizeImage;-
115 s >> bi.biXPelsPerMeter >> bi.biYPelsPerMeter;-
116 s >> bi.biClrUsed >> bi.biClrImportant;-
117 }
never executed: end of block
0
118 else { // probably old Windows format-
119 qint16 w, h;-
120 s >> w >> h >> bi.biPlanes >> bi.biBitCount;-
121 bi.biWidth = w;-
122 bi.biHeight = h;-
123 bi.biCompression = BMP_RGB; // no compression-
124 bi.biSizeImage = 0;-
125 bi.biXPelsPerMeter = bi.biYPelsPerMeter = 0;-
126 bi.biClrUsed = bi.biClrImportant = 0;-
127 }
never executed: end of block
0
128 return s;
never executed: return s;
0
129}-
130-
131static QDataStream &operator<<(QDataStream &s, const BMP_INFOHDR &bi)-
132{-
133 s << bi.biSize;-
134 s << bi.biWidth << bi.biHeight;-
135 s << bi.biPlanes;-
136 s << bi.biBitCount;-
137 s << bi.biCompression;-
138 s << bi.biSizeImage;-
139 s << bi.biXPelsPerMeter << bi.biYPelsPerMeter;-
140 s << bi.biClrUsed << bi.biClrImportant;-
141 return s;
never executed: return s;
0
142}-
143-
144static int calc_shift(uint mask)-
145{-
146 int result = 0;-
147 while (mask && !(mask & 1)) {
maskDescription
TRUEnever evaluated
FALSEnever evaluated
!(mask & 1)Description
TRUEnever evaluated
FALSEnever evaluated
0
148 result++;-
149 mask >>= 1;-
150 }
never executed: end of block
0
151 return result;
never executed: return result;
0
152}-
153-
154static bool read_dib_fileheader(QDataStream &s, BMP_FILEHDR &bf)-
155{-
156 // read BMP file header-
157 s >> bf;-
158 if (s.status() != QDataStream::Ok)
s.status() != QDataStream::OkDescription
TRUEnever evaluated
FALSEnever evaluated
0
159 return false;
never executed: return false;
0
160-
161 // check header-
162 if (qstrncmp(bf.bfType,"BM",2) != 0)
qstrncmp(bf.bf...e,"BM",2) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
163 return false;
never executed: return false;
0
164-
165 return true;
never executed: return true;
0
166}-
167-
168static bool read_dib_infoheader(QDataStream &s, BMP_INFOHDR &bi)-
169{-
170 s >> bi; // read BMP info header-
171 if (s.status() != QDataStream::Ok)
s.status() != QDataStream::OkDescription
TRUEnever evaluated
FALSEnever evaluated
0
172 return false;
never executed: return false;
0
173-
174 int nbits = bi.biBitCount;-
175 int comp = bi.biCompression;-
176 if (!(nbits == 1 || nbits == 4 || nbits == 8 || nbits == 16 || nbits == 24 || nbits == 32) ||
nbits == 1Description
TRUEnever evaluated
FALSEnever evaluated
nbits == 4Description
TRUEnever evaluated
FALSEnever evaluated
nbits == 8Description
TRUEnever evaluated
FALSEnever evaluated
nbits == 16Description
TRUEnever evaluated
FALSEnever evaluated
nbits == 24Description
TRUEnever evaluated
FALSEnever evaluated
nbits == 32Description
TRUEnever evaluated
FALSEnever evaluated
0
177 bi.biPlanes != 1 || comp > BMP_BITFIELDS)
bi.biPlanes != 1Description
TRUEnever evaluated
FALSEnever evaluated
comp > BMP_BITFIELDSDescription
TRUEnever evaluated
FALSEnever evaluated
0
178 return false; // weird BMP image
never executed: return false;
0
179 if (!(comp == BMP_RGB || (nbits == 4 && comp == BMP_RLE4) ||
comp == BMP_RGBDescription
TRUEnever evaluated
FALSEnever evaluated
nbits == 4Description
TRUEnever evaluated
FALSEnever evaluated
comp == BMP_RLE4Description
TRUEnever evaluated
FALSEnever evaluated
0
180 (nbits == 8 && comp == BMP_RLE8) || ((nbits == 16 || nbits == 32) && comp == BMP_BITFIELDS)))
nbits == 8Description
TRUEnever evaluated
FALSEnever evaluated
comp == BMP_RLE8Description
TRUEnever evaluated
FALSEnever evaluated
nbits == 16Description
TRUEnever evaluated
FALSEnever evaluated
nbits == 32Description
TRUEnever evaluated
FALSEnever evaluated
comp == BMP_BITFIELDSDescription
TRUEnever evaluated
FALSEnever evaluated
0
181 return false; // weird compression type
never executed: return false;
0
182-
183 return true;
never executed: return true;
0
184}-
185-
186static bool read_dib_body(QDataStream &s, const BMP_INFOHDR &bi, int offset, int startpos, QImage &image)-
187{-
188 QIODevice* d = s.device();-
189 if (d->atEnd()) // end of stream/file
d->atEnd()Description
TRUEnever evaluated
FALSEnever evaluated
0
190 return false;
never executed: return false;
0
191#if 0-
192 qDebug("offset...........%d", offset);-
193 qDebug("startpos.........%d", startpos);-
194 qDebug("biSize...........%d", bi.biSize);-
195 qDebug("biWidth..........%d", bi.biWidth);-
196 qDebug("biHeight.........%d", bi.biHeight);-
197 qDebug("biPlanes.........%d", bi.biPlanes);-
198 qDebug("biBitCount.......%d", bi.biBitCount);-
199 qDebug("biCompression....%d", bi.biCompression);-
200 qDebug("biSizeImage......%d", bi.biSizeImage);-
201 qDebug("biXPelsPerMeter..%d", bi.biXPelsPerMeter);-
202 qDebug("biYPelsPerMeter..%d", bi.biYPelsPerMeter);-
203 qDebug("biClrUsed........%d", bi.biClrUsed);-
204 qDebug("biClrImportant...%d", bi.biClrImportant);-
205#endif-
206 int w = bi.biWidth, h = bi.biHeight, nbits = bi.biBitCount;-
207 int t = bi.biSize, comp = bi.biCompression;-
208 uint red_mask = 0;-
209 uint green_mask = 0;-
210 uint blue_mask = 0;-
211 uint alpha_mask = 0;-
212 int red_shift = 0;-
213 int green_shift = 0;-
214 int blue_shift = 0;-
215 int alpha_shift = 0;-
216 int red_scale = 0;-
217 int green_scale = 0;-
218 int blue_scale = 0;-
219 int alpha_scale = 0;-
220-
221 if (!d->isSequential())
!d->isSequential()Description
TRUEnever evaluated
FALSEnever evaluated
0
222 d->seek(startpos + BMP_FILEHDR_SIZE + (bi.biSize >= BMP_WIN4 ? BMP_WIN : bi.biSize)); // goto start of colormap or masks
never executed: d->seek(startpos + BMP_FILEHDR_SIZE + (bi.biSize >= BMP_WIN4 ? BMP_WIN : bi.biSize));
0
223-
224 if (bi.biSize >= BMP_WIN4 || (comp == BMP_BITFIELDS && (nbits == 16 || nbits == 32))) {
bi.biSize >= BMP_WIN4Description
TRUEnever evaluated
FALSEnever evaluated
comp == BMP_BITFIELDSDescription
TRUEnever evaluated
FALSEnever evaluated
nbits == 16Description
TRUEnever evaluated
FALSEnever evaluated
nbits == 32Description
TRUEnever evaluated
FALSEnever evaluated
0
225 if (d->read((char *)&red_mask, sizeof(red_mask)) != sizeof(red_mask))
d->read((char ...zeof(red_mask)Description
TRUEnever evaluated
FALSEnever evaluated
0
226 return false;
never executed: return false;
0
227 if (d->read((char *)&green_mask, sizeof(green_mask)) != sizeof(green_mask))
d->read((char ...of(green_mask)Description
TRUEnever evaluated
FALSEnever evaluated
0
228 return false;
never executed: return false;
0
229 if (d->read((char *)&blue_mask, sizeof(blue_mask)) != sizeof(blue_mask))
d->read((char ...eof(blue_mask)Description
TRUEnever evaluated
FALSEnever evaluated
0
230 return false;
never executed: return false;
0
231-
232 // Read BMP v4+ header-
233 if (bi.biSize >= BMP_WIN4) {
bi.biSize >= BMP_WIN4Description
TRUEnever evaluated
FALSEnever evaluated
0
234 int CSType = 0;-
235 int gamma_red = 0;-
236 int gamma_green = 0;-
237 int gamma_blue = 0;-
238 int endpoints[9];-
239-
240 if (d->read((char *)&alpha_mask, sizeof(alpha_mask)) != sizeof(alpha_mask))
d->read((char ...of(alpha_mask)Description
TRUEnever evaluated
FALSEnever evaluated
0
241 return false;
never executed: return false;
0
242 if (d->read((char *)&CSType, sizeof(CSType)) != sizeof(CSType))
d->read((char ...sizeof(CSType)Description
TRUEnever evaluated
FALSEnever evaluated
0
243 return false;
never executed: return false;
0
244 if (d->read((char *)&endpoints, sizeof(endpoints)) != sizeof(endpoints))
d->read((char ...eof(endpoints)Description
TRUEnever evaluated
FALSEnever evaluated
0
245 return false;
never executed: return false;
0
246 if (d->read((char *)&gamma_red, sizeof(gamma_red)) != sizeof(gamma_red))
d->read((char ...eof(gamma_red)Description
TRUEnever evaluated
FALSEnever evaluated
0
247 return false;
never executed: return false;
0
248 if (d->read((char *)&gamma_green, sizeof(gamma_green)) != sizeof(gamma_green))
d->read((char ...f(gamma_green)Description
TRUEnever evaluated
FALSEnever evaluated
0
249 return false;
never executed: return false;
0
250 if (d->read((char *)&gamma_blue, sizeof(gamma_blue)) != sizeof(gamma_blue))
d->read((char ...of(gamma_blue)Description
TRUEnever evaluated
FALSEnever evaluated
0
251 return false;
never executed: return false;
0
252-
253 if (bi.biSize == BMP_WIN5) {
bi.biSize == BMP_WIN5Description
TRUEnever evaluated
FALSEnever evaluated
0
254 qint32 intent = 0;-
255 qint32 profileData = 0;-
256 qint32 profileSize = 0;-
257 qint32 reserved = 0;-
258-
259 if (d->read((char *)&intent, sizeof(intent)) != sizeof(intent))
d->read((char ...sizeof(intent)Description
TRUEnever evaluated
FALSEnever evaluated
0
260 return false;
never executed: return false;
0
261 if (d->read((char *)&profileData, sizeof(profileData)) != sizeof(profileData))
d->read((char ...f(profileData)Description
TRUEnever evaluated
FALSEnever evaluated
0
262 return false;
never executed: return false;
0
263 if (d->read((char *)&profileSize, sizeof(profileSize)) != sizeof(profileSize))
d->read((char ...f(profileSize)Description
TRUEnever evaluated
FALSEnever evaluated
0
264 return false;
never executed: return false;
0
265 if (d->read((char *)&reserved, sizeof(reserved)) != sizeof(reserved) || reserved != 0)
d->read((char ...zeof(reserved)Description
TRUEnever evaluated
FALSEnever evaluated
reserved != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
266 return false;
never executed: return false;
0
267 }
never executed: end of block
0
268 }
never executed: end of block
0
269 }
never executed: end of block
0
270-
271 bool transp = (comp == BMP_BITFIELDS) && alpha_mask;
(comp == BMP_BITFIELDS)Description
TRUEnever evaluated
FALSEnever evaluated
alpha_maskDescription
TRUEnever evaluated
FALSEnever evaluated
0
272 int ncols = 0;-
273 int depth = 0;-
274 QImage::Format format;-
275 switch (nbits) {-
276 case 32:
never executed: case 32:
0
277 case 24:
never executed: case 24:
0
278 case 16:
never executed: case 16:
0
279 depth = 32;-
280 format = transp ? QImage::Format_ARGB32 : QImage::Format_RGB32;
transpDescription
TRUEnever evaluated
FALSEnever evaluated
0
281 break;
never executed: break;
0
282 case 8:
never executed: case 8:
0
283 case 4:
never executed: case 4:
0
284 depth = 8;-
285 format = QImage::Format_Indexed8;-
286 break;
never executed: break;
0
287 default:
never executed: default:
0
288 depth = 1;-
289 format = QImage::Format_Mono;-
290 }
never executed: end of block
0
291-
292 if (depth != 32) {
depth != 32Description
TRUEnever evaluated
FALSEnever evaluated
0
293 ncols = bi.biClrUsed ? bi.biClrUsed : 1 << nbits;
bi.biClrUsedDescription
TRUEnever evaluated
FALSEnever evaluated
0
294 if (ncols < 1 || ncols > 256) // sanity check - don't run out of mem if color table is broken
ncols < 1Description
TRUEnever evaluated
FALSEnever evaluated
ncols > 256Description
TRUEnever evaluated
FALSEnever evaluated
0
295 return false;
never executed: return false;
0
296 }
never executed: end of block
0
297-
298 if (bi.biHeight < 0)
bi.biHeight < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
299 h = -h; // support images with negative height
never executed: h = -h;
0
300-
301 if (image.size() != QSize(w, h) || image.format() != format) {
image.size() != QSize(w, h)Description
TRUEnever evaluated
FALSEnever evaluated
image.format() != formatDescription
TRUEnever evaluated
FALSEnever evaluated
0
302 image = QImage(w, h, format);-
303 if (image.isNull()) // could not create image
image.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
0
304 return false;
never executed: return false;
0
305 if (ncols)
ncolsDescription
TRUEnever evaluated
FALSEnever evaluated
0
306 image.setColorCount(ncols); // Ensure valid QImage
never executed: image.setColorCount(ncols);
0
307 }
never executed: end of block
0
308-
309 image.setDotsPerMeterX(bi.biXPelsPerMeter);-
310 image.setDotsPerMeterY(bi.biYPelsPerMeter);-
311-
312 if (ncols > 0) { // read color table
ncols > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
313 image.setColorCount(ncols);-
314 uchar rgb[4];-
315 int rgb_len = t == BMP_OLD ? 3 : 4;
t == BMP_OLDDescription
TRUEnever evaluated
FALSEnever evaluated
0
316 for (int i=0; i<ncols; i++) {
i<ncolsDescription
TRUEnever evaluated
FALSEnever evaluated
0
317 if (d->read((char *)rgb, rgb_len) != rgb_len)
d->read((char ...en) != rgb_lenDescription
TRUEnever evaluated
FALSEnever evaluated
0
318 return false;
never executed: return false;
0
319 image.setColor(i, qRgb(rgb[2],rgb[1],rgb[0]));-
320 if (d->atEnd()) // truncated file
d->atEnd()Description
TRUEnever evaluated
FALSEnever evaluated
0
321 return false;
never executed: return false;
0
322 }
never executed: end of block
0
323 } else if (comp == BMP_BITFIELDS && (nbits == 16 || nbits == 32)) {
never executed: end of block
comp == BMP_BITFIELDSDescription
TRUEnever evaluated
FALSEnever evaluated
nbits == 16Description
TRUEnever evaluated
FALSEnever evaluated
nbits == 32Description
TRUEnever evaluated
FALSEnever evaluated
0
324 red_shift = calc_shift(red_mask);-
325 if (((red_mask >> red_shift) + 1) == 0)
((red_mask >> ...ift) + 1) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
326 return false;
never executed: return false;
0
327 red_scale = 256 / ((red_mask >> red_shift) + 1);-
328 green_shift = calc_shift(green_mask);-
329 if (((green_mask >> green_shift) + 1) == 0)
((green_mask >...ift) + 1) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
330 return false;
never executed: return false;
0
331 green_scale = 256 / ((green_mask >> green_shift) + 1);-
332 blue_shift = calc_shift(blue_mask);-
333 if (((blue_mask >> blue_shift) + 1) == 0)
((blue_mask >>...ift) + 1) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
334 return false;
never executed: return false;
0
335 blue_scale = 256 / ((blue_mask >> blue_shift) + 1);-
336 alpha_shift = calc_shift(alpha_mask);-
337 if (((alpha_mask >> alpha_shift) + 1) == 0)
((alpha_mask >...ift) + 1) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
338 return false;
never executed: return false;
0
339 alpha_scale = 256 / ((alpha_mask >> alpha_shift) + 1);-
340 } else if (comp == BMP_RGB && (nbits == 24 || nbits == 32)) {
never executed: end of block
comp == BMP_RGBDescription
TRUEnever evaluated
FALSEnever evaluated
nbits == 24Description
TRUEnever evaluated
FALSEnever evaluated
nbits == 32Description
TRUEnever evaluated
FALSEnever evaluated
0
341 blue_mask = 0x000000ff;-
342 green_mask = 0x0000ff00;-
343 red_mask = 0x00ff0000;-
344 blue_shift = 0;-
345 green_shift = 8;-
346 red_shift = 16;-
347 blue_scale = green_scale = red_scale = 1;-
348 } else if (comp == BMP_RGB && nbits == 16) {
never executed: end of block
comp == BMP_RGBDescription
TRUEnever evaluated
FALSEnever evaluated
nbits == 16Description
TRUEnever evaluated
FALSEnever evaluated
0
349 blue_mask = 0x001f;-
350 green_mask = 0x03e0;-
351 red_mask = 0x7c00;-
352 blue_shift = 0;-
353 green_shift = 2;-
354 red_shift = 7;-
355 red_scale = 1;-
356 green_scale = 1;-
357 blue_scale = 8;-
358 }
never executed: end of block
0
359-
360#if 0-
361 qDebug("Rmask: %08x Rshift: %08x Rscale:%08x", red_mask, red_shift, red_scale);-
362 qDebug("Gmask: %08x Gshift: %08x Gscale:%08x", green_mask, green_shift, green_scale);-
363 qDebug("Bmask: %08x Bshift: %08x Bscale:%08x", blue_mask, blue_shift, blue_scale);-
364 qDebug("Amask: %08x Ashift: %08x Ascale:%08x", alpha_mask, alpha_shift, alpha_scale);-
365#endif-
366-
367 // offset can be bogus, be careful-
368 if (offset>=0 && startpos + offset > d->pos()) {
offset>=0Description
TRUEnever evaluated
FALSEnever evaluated
startpos + offset > d->pos()Description
TRUEnever evaluated
FALSEnever evaluated
0
369 if (!d->isSequential())
!d->isSequential()Description
TRUEnever evaluated
FALSEnever evaluated
0
370 d->seek(startpos + offset); // start of image data
never executed: d->seek(startpos + offset);
0
371 }
never executed: end of block
0
372-
373 int bpl = image.bytesPerLine();-
374 uchar *data = image.bits();-
375-
376 if (nbits == 1) { // 1 bit BMP image
nbits == 1Description
TRUEnever evaluated
FALSEnever evaluated
0
377 while (--h >= 0) {
--h >= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
378 if (d->read((char*)(data + h*bpl), bpl) != bpl)
d->read((char*...), bpl) != bplDescription
TRUEnever evaluated
FALSEnever evaluated
0
379 break;
never executed: break;
0
380 }
never executed: end of block
0
381 if (ncols == 2 && qGray(image.color(0)) < qGray(image.color(1)))
ncols == 2Description
TRUEnever evaluated
FALSEnever evaluated
qGray(image.co...mage.color(1))Description
TRUEnever evaluated
FALSEnever evaluated
0
382 swapPixel01(&image); // pixel 0 is white!
never executed: swapPixel01(&image);
0
383 }
never executed: end of block
0
384-
385 else if (nbits == 4) { // 4 bit BMP image
nbits == 4Description
TRUEnever evaluated
FALSEnever evaluated
0
386 int buflen = ((w+7)/8)*4;-
387 uchar *buf = new uchar[buflen];-
388 if (comp == BMP_RLE4) { // run length compression
comp == BMP_RLE4Description
TRUEnever evaluated
FALSEnever evaluated
0
389 int x=0, y=0, c, i;-
390 quint8 b;-
391 uchar *p = data + (h-1)*bpl;-
392 const uchar *endp = p + w;-
393 while (y < h) {
y < hDescription
TRUEnever evaluated
FALSEnever evaluated
0
394 if (!d->getChar((char *)&b))
!d->getChar((char *)&b)Description
TRUEnever evaluated
FALSEnever evaluated
0
395 break;
never executed: break;
0
396 if (b == 0) { // escape code
b == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
397 if (!d->getChar((char *)&b) || b == 1) {
!d->getChar((char *)&b)Description
TRUEnever evaluated
FALSEnever evaluated
b == 1Description
TRUEnever evaluated
FALSEnever evaluated
0
398 y = h; // exit loop-
399 } else switch (b) {
never executed: end of block
0
400 case 0: // end of line
never executed: case 0:
0
401 x = 0;-
402 y++;-
403 p = data + (h-y-1)*bpl;-
404 break;
never executed: break;
0
405 case 2: // delta (jump)
never executed: case 2:
0
406 {-
407 quint8 tmp;-
408 d->getChar((char *)&tmp);-
409 x += tmp;-
410 d->getChar((char *)&tmp);-
411 y += tmp;-
412 }-
413-
414 // Protection-
415 if ((uint)x >= (uint)w)
(uint)x >= (uint)wDescription
TRUEnever evaluated
FALSEnever evaluated
0
416 x = w-1;
never executed: x = w-1;
0
417 if ((uint)y >= (uint)h)
(uint)y >= (uint)hDescription
TRUEnever evaluated
FALSEnever evaluated
0
418 y = h-1;
never executed: y = h-1;
0
419-
420 p = data + (h-y-1)*bpl + x;-
421 break;
never executed: break;
0
422 default: // absolute mode
never executed: default:
0
423 // Protection-
424 if (p + b > endp)
p + b > endpDescription
TRUEnever evaluated
FALSEnever evaluated
0
425 b = endp-p;
never executed: b = endp-p;
0
426-
427 i = (c = b)/2;-
428 while (i--) {
i--Description
TRUEnever evaluated
FALSEnever evaluated
0
429 d->getChar((char *)&b);-
430 *p++ = b >> 4;-
431 *p++ = b & 0x0f;-
432 }
never executed: end of block
0
433 if (c & 1) {
c & 1Description
TRUEnever evaluated
FALSEnever evaluated
0
434 unsigned char tmp;-
435 d->getChar((char *)&tmp);-
436 *p++ = tmp >> 4;-
437 }
never executed: end of block
0
438 if ((((c & 3) + 1) & 2) == 2)
(((c & 3) + 1) & 2) == 2Description
TRUEnever evaluated
FALSEnever evaluated
0
439 d->getChar(0); // align on word boundary
never executed: d->getChar(0);
0
440 x += c;-
441 }
never executed: end of block
0
442 } else { // encoded mode-
443 // Protection-
444 if (p + b > endp)
p + b > endpDescription
TRUEnever evaluated
FALSEnever evaluated
0
445 b = endp-p;
never executed: b = endp-p;
0
446-
447 i = (c = b)/2;-
448 d->getChar((char *)&b); // 2 pixels to be repeated-
449 while (i--) {
i--Description
TRUEnever evaluated
FALSEnever evaluated
0
450 *p++ = b >> 4;-
451 *p++ = b & 0x0f;-
452 }
never executed: end of block
0
453 if (c & 1)
c & 1Description
TRUEnever evaluated
FALSEnever evaluated
0
454 *p++ = b >> 4;
never executed: *p++ = b >> 4;
0
455 x += c;-
456 }
never executed: end of block
0
457 }-
458 } else if (comp == BMP_RGB) { // no compression
never executed: end of block
comp == BMP_RGBDescription
TRUEnever evaluated
FALSEnever evaluated
0
459 memset(data, 0, h*bpl);-
460 while (--h >= 0) {
--h >= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
461 if (d->read((char*)buf,buflen) != buflen)
d->read((char*...len) != buflenDescription
TRUEnever evaluated
FALSEnever evaluated
0
462 break;
never executed: break;
0
463 uchar *p = data + h*bpl;-
464 uchar *b = buf;-
465 for (int i=0; i<w/2; i++) { // convert nibbles to bytes
i<w/2Description
TRUEnever evaluated
FALSEnever evaluated
0
466 *p++ = *b >> 4;-
467 *p++ = *b++ & 0x0f;-
468 }
never executed: end of block
0
469 if (w & 1) // the last nibble
w & 1Description
TRUEnever evaluated
FALSEnever evaluated
0
470 *p = *b >> 4;
never executed: *p = *b >> 4;
0
471 }
never executed: end of block
0
472 }
never executed: end of block
0
473 delete [] buf;-
474 }
never executed: end of block
0
475-
476 else if (nbits == 8) { // 8 bit BMP image
nbits == 8Description
TRUEnever evaluated
FALSEnever evaluated
0
477 if (comp == BMP_RLE8) { // run length compression
comp == BMP_RLE8Description
TRUEnever evaluated
FALSEnever evaluated
0
478 int x=0, y=0;-
479 quint8 b;-
480 uchar *p = data + (h-1)*bpl;-
481 const uchar *endp = p + w;-
482 while (y < h) {
y < hDescription
TRUEnever evaluated
FALSEnever evaluated
0
483 if (!d->getChar((char *)&b))
!d->getChar((char *)&b)Description
TRUEnever evaluated
FALSEnever evaluated
0
484 break;
never executed: break;
0
485 if (b == 0) { // escape code
b == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
486 if (!d->getChar((char *)&b) || b == 1) {
!d->getChar((char *)&b)Description
TRUEnever evaluated
FALSEnever evaluated
b == 1Description
TRUEnever evaluated
FALSEnever evaluated
0
487 y = h; // exit loop-
488 } else switch (b) {
never executed: end of block
0
489 case 0: // end of line
never executed: case 0:
0
490 x = 0;-
491 y++;-
492 p = data + (h-y-1)*bpl;-
493 break;
never executed: break;
0
494 case 2: // delta (jump)
never executed: case 2:
0
495 {-
496 quint8 tmp;-
497 d->getChar((char *)&tmp);-
498 x += tmp;-
499 d->getChar((char *)&tmp);-
500 y += tmp;-
501 }-
502-
503 // Protection-
504 if ((uint)x >= (uint)w)
(uint)x >= (uint)wDescription
TRUEnever evaluated
FALSEnever evaluated
0
505 x = w-1;
never executed: x = w-1;
0
506 if ((uint)y >= (uint)h)
(uint)y >= (uint)hDescription
TRUEnever evaluated
FALSEnever evaluated
0
507 y = h-1;
never executed: y = h-1;
0
508-
509 p = data + (h-y-1)*bpl + x;-
510 break;
never executed: break;
0
511 default: // absolute mode
never executed: default:
0
512 // Protection-
513 if (p + b > endp)
p + b > endpDescription
TRUEnever evaluated
FALSEnever evaluated
0
514 b = endp-p;
never executed: b = endp-p;
0
515-
516 if (d->read((char *)p, b) != b)
d->read((char *)p, b) != bDescription
TRUEnever evaluated
FALSEnever evaluated
0
517 return false;
never executed: return false;
0
518 if ((b & 1) == 1)
(b & 1) == 1Description
TRUEnever evaluated
FALSEnever evaluated
0
519 d->getChar(0); // align on word boundary
never executed: d->getChar(0);
0
520 x += b;-
521 p += b;-
522 }
never executed: end of block
0
523 } else { // encoded mode-
524 // Protection-
525 if (p + b > endp)
p + b > endpDescription
TRUEnever evaluated
FALSEnever evaluated
0
526 b = endp-p;
never executed: b = endp-p;
0
527-
528 char tmp;-
529 d->getChar(&tmp);-
530 memset(p, tmp, b); // repeat pixel-
531 x += b;-
532 p += b;-
533 }
never executed: end of block
0
534 }-
535 } else if (comp == BMP_RGB) { // uncompressed
never executed: end of block
comp == BMP_RGBDescription
TRUEnever evaluated
FALSEnever evaluated
0
536 while (--h >= 0) {
--h >= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
537 if (d->read((char *)data + h*bpl, bpl) != bpl)
d->read((char ...l, bpl) != bplDescription
TRUEnever evaluated
FALSEnever evaluated
0
538 break;
never executed: break;
0
539 }
never executed: end of block
0
540 }
never executed: end of block
0
541 }
never executed: end of block
0
542-
543 else if (nbits == 16 || nbits == 24 || nbits == 32) { // 16,24,32 bit BMP image
nbits == 16Description
TRUEnever evaluated
FALSEnever evaluated
nbits == 24Description
TRUEnever evaluated
FALSEnever evaluated
nbits == 32Description
TRUEnever evaluated
FALSEnever evaluated
0
544 QRgb *p;-
545 QRgb *end;-
546 uchar *buf24 = new uchar[bpl];-
547 int bpl24 = ((w*nbits+31)/32)*4;-
548 uchar *b;-
549 int c;-
550-
551 while (--h >= 0) {
--h >= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
552 p = (QRgb *)(data + h*bpl);-
553 end = p + w;-
554 if (d->read((char *)buf24,bpl24) != bpl24)
d->read((char ...pl24) != bpl24Description
TRUEnever evaluated
FALSEnever evaluated
0
555 break;
never executed: break;
0
556 b = buf24;-
557 while (p < end) {
p < endDescription
TRUEnever evaluated
FALSEnever evaluated
0
558 c = *(uchar*)b | (*(uchar*)(b+1)<<8);-
559 if (nbits > 16)
nbits > 16Description
TRUEnever evaluated
FALSEnever evaluated
0
560 c |= *(uchar*)(b+2)<<16;
never executed: c |= *(uchar*)(b+2)<<16;
0
561 if (nbits > 24)
nbits > 24Description
TRUEnever evaluated
FALSEnever evaluated
0
562 c |= *(uchar*)(b+3)<<24;
never executed: c |= *(uchar*)(b+3)<<24;
0
563 *p++ = qRgba(((c & red_mask) >> red_shift) * red_scale,-
564 ((c & green_mask) >> green_shift) * green_scale,-
565 ((c & blue_mask) >> blue_shift) * blue_scale,-
566 transp ? ((c & alpha_mask) >> alpha_shift) * alpha_scale : 0xff);-
567 b += nbits/8;-
568 }
never executed: end of block
0
569 }
never executed: end of block
0
570 delete[] buf24;-
571 }
never executed: end of block
0
572-
573 if (bi.biHeight < 0) {
bi.biHeight < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
574 // Flip the image-
575 uchar *buf = new uchar[bpl];-
576 h = -bi.biHeight;-
577 for (int y = 0; y < h/2; ++y) {
y < h/2Description
TRUEnever evaluated
FALSEnever evaluated
0
578 memcpy(buf, data + y*bpl, bpl);-
579 memcpy(data + y*bpl, data + (h-y-1)*bpl, bpl);-
580 memcpy(data + (h-y-1)*bpl, buf, bpl);-
581 }
never executed: end of block
0
582 delete [] buf;-
583 }
never executed: end of block
0
584-
585 return true;
never executed: return true;
0
586}-
587-
588// this is also used in qmime_win.cpp-
589bool qt_write_dib(QDataStream &s, QImage image)-
590{-
591 int nbits;-
592 int bpl_bmp;-
593 int bpl = image.bytesPerLine();-
594-
595 QIODevice* d = s.device();-
596 if (!d->isWritable())
!d->isWritable()Description
TRUEnever evaluated
FALSEnever evaluated
0
597 return false;
never executed: return false;
0
598-
599 if (image.depth() == 8 && image.colorCount() <= 16) {
image.depth() == 8Description
TRUEnever evaluated
FALSEnever evaluated
image.colorCount() <= 16Description
TRUEnever evaluated
FALSEnever evaluated
0
600 bpl_bmp = (((bpl+1)/2+3)/4)*4;-
601 nbits = 4;-
602 } else if (image.depth() == 32) {
never executed: end of block
image.depth() == 32Description
TRUEnever evaluated
FALSEnever evaluated
0
603 bpl_bmp = ((image.width()*24+31)/32)*4;-
604 nbits = 24;-
605 } else {
never executed: end of block
0
606 bpl_bmp = bpl;-
607 nbits = image.depth();-
608 }
never executed: end of block
0
609-
610 BMP_INFOHDR bi;-
611 bi.biSize = BMP_WIN; // build info header-
612 bi.biWidth = image.width();-
613 bi.biHeight = image.height();-
614 bi.biPlanes = 1;-
615 bi.biBitCount = nbits;-
616 bi.biCompression = BMP_RGB;-
617 bi.biSizeImage = bpl_bmp*image.height();-
618 bi.biXPelsPerMeter = image.dotsPerMeterX() ? image.dotsPerMeterX()
image.dotsPerMeterX()Description
TRUEnever evaluated
FALSEnever evaluated
0
619 : 2834; // 72 dpi default-
620 bi.biYPelsPerMeter = image.dotsPerMeterY() ? image.dotsPerMeterY() : 2834;
image.dotsPerMeterY()Description
TRUEnever evaluated
FALSEnever evaluated
0
621 bi.biClrUsed = image.colorCount();-
622 bi.biClrImportant = image.colorCount();-
623 s << bi; // write info header-
624 if (s.status() != QDataStream::Ok)
s.status() != QDataStream::OkDescription
TRUEnever evaluated
FALSEnever evaluated
0
625 return false;
never executed: return false;
0
626-
627 if (image.depth() != 32) { // write color table
image.depth() != 32Description
TRUEnever evaluated
FALSEnever evaluated
0
628 uchar *color_table = new uchar[4*image.colorCount()];-
629 uchar *rgb = color_table;-
630 QVector<QRgb> c = image.colorTable();-
631 for (int i=0; i<image.colorCount(); i++) {
i<image.colorCount()Description
TRUEnever evaluated
FALSEnever evaluated
0
632 *rgb++ = qBlue (c[i]);-
633 *rgb++ = qGreen(c[i]);-
634 *rgb++ = qRed (c[i]);-
635 *rgb++ = 0;-
636 }
never executed: end of block
0
637 if (d->write((char *)color_table, 4*image.colorCount()) == -1) {
d->write((char...Count()) == -1Description
TRUEnever evaluated
FALSEnever evaluated
0
638 delete [] color_table;-
639 return false;
never executed: return false;
0
640 }-
641 delete [] color_table;-
642 }
never executed: end of block
0
643-
644 if (image.format() == QImage::Format_MonoLSB)
image.format()...Format_MonoLSBDescription
TRUEnever evaluated
FALSEnever evaluated
0
645 image = image.convertToFormat(QImage::Format_Mono);
never executed: image = image.convertToFormat(QImage::Format_Mono);
0
646-
647 int y;-
648-
649 if (nbits == 1 || nbits == 8) { // direct output
nbits == 1Description
TRUEnever evaluated
FALSEnever evaluated
nbits == 8Description
TRUEnever evaluated
FALSEnever evaluated
0
650 for (y=image.height()-1; y>=0; y--) {
y>=0Description
TRUEnever evaluated
FALSEnever evaluated
0
651 if (d->write((const char*)image.constScanLine(y), bpl) == -1)
d->write((cons...y), bpl) == -1Description
TRUEnever evaluated
FALSEnever evaluated
0
652 return false;
never executed: return false;
0
653 }
never executed: end of block
0
654 return true;
never executed: return true;
0
655 }-
656-
657 uchar *buf = new uchar[bpl_bmp];-
658 uchar *b, *end;-
659 const uchar *p;-
660-
661 memset(buf, 0, bpl_bmp);-
662 for (y=image.height()-1; y>=0; y--) { // write the image bits
y>=0Description
TRUEnever evaluated
FALSEnever evaluated
0
663 if (nbits == 4) { // convert 8 -> 4 bits
nbits == 4Description
TRUEnever evaluated
FALSEnever evaluated
0
664 p = image.constScanLine(y);-
665 b = buf;-
666 end = b + image.width()/2;-
667 while (b < end) {
b < endDescription
TRUEnever evaluated
FALSEnever evaluated
0
668 *b++ = (*p << 4) | (*(p+1) & 0x0f);-
669 p += 2;-
670 }
never executed: end of block
0
671 if (image.width() & 1)
image.width() & 1Description
TRUEnever evaluated
FALSEnever evaluated
0
672 *b = *p << 4;
never executed: *b = *p << 4;
0
673 } else { // 32 bits
never executed: end of block
0
674 const QRgb *p = (const QRgb *)image.constScanLine(y);-
675 const QRgb *end = p + image.width();-
676 b = buf;-
677 while (p < end) {
p < endDescription
TRUEnever evaluated
FALSEnever evaluated
0
678 *b++ = qBlue(*p);-
679 *b++ = qGreen(*p);-
680 *b++ = qRed(*p);-
681 p++;-
682 }
never executed: end of block
0
683 }
never executed: end of block
0
684 if (bpl_bmp != d->write((char*)buf, bpl_bmp)) {
bpl_bmp != d->...)buf, bpl_bmp)Description
TRUEnever evaluated
FALSEnever evaluated
0
685 delete[] buf;-
686 return false;
never executed: return false;
0
687 }-
688 }
never executed: end of block
0
689 delete[] buf;-
690 return true;
never executed: return true;
0
691}-
692-
693// this is also used in qmime_win.cpp-
694bool qt_read_dib(QDataStream &s, QImage &image)-
695{-
696 BMP_INFOHDR bi;-
697 if (!read_dib_infoheader(s, bi))
!read_dib_infoheader(s, bi)Description
TRUEnever evaluated
FALSEnever evaluated
0
698 return false;
never executed: return false;
0
699 return read_dib_body(s, bi, -1, -BMP_FILEHDR_SIZE, image);
never executed: return read_dib_body(s, bi, -1, -BMP_FILEHDR_SIZE, image);
0
700}-
701-
702QBmpHandler::QBmpHandler(InternalFormat fmt) :-
703 m_format(fmt), state(Ready)-
704{-
705}
never executed: end of block
0
706-
707QByteArray QBmpHandler::formatName() const-
708{-
709 return m_format == BmpFormat ? "bmp" : "dib";
never executed: return m_format == BmpFormat ? "bmp" : "dib";
0
710}-
711-
712bool QBmpHandler::readHeader()-
713{-
714 state = Error;-
715-
716 QIODevice *d = device();-
717 QDataStream s(d);-
718 startpos = d->pos();-
719-
720 // Intel byte order-
721 s.setByteOrder(QDataStream::LittleEndian);-
722-
723 // read BMP file header-
724 if (m_format == BmpFormat && !read_dib_fileheader(s, fileHeader))
m_format == BmpFormatDescription
TRUEnever evaluated
FALSEnever evaluated
!read_dib_file...s, fileHeader)Description
TRUEnever evaluated
FALSEnever evaluated
0
725 return false;
never executed: return false;
0
726-
727 // read BMP info header-
728 if (!read_dib_infoheader(s, infoHeader))
!read_dib_info...s, infoHeader)Description
TRUEnever evaluated
FALSEnever evaluated
0
729 return false;
never executed: return false;
0
730-
731 state = ReadHeader;-
732 return true;
never executed: return true;
0
733}-
734-
735bool QBmpHandler::canRead() const-
736{-
737 if (m_format == BmpFormat && state == Ready && !canRead(device()))
m_format == BmpFormatDescription
TRUEnever evaluated
FALSEnever evaluated
state == ReadyDescription
TRUEnever evaluated
FALSEnever evaluated
!canRead(device())Description
TRUEnever evaluated
FALSEnever evaluated
0
738 return false;
never executed: return false;
0
739-
740 if (state != Error) {
state != ErrorDescription
TRUEnever evaluated
FALSEnever evaluated
0
741 setFormat(formatName());-
742 return true;
never executed: return true;
0
743 }-
744-
745 return false;
never executed: return false;
0
746}-
747-
748bool QBmpHandler::canRead(QIODevice *device)-
749{-
750 if (!device) {
!deviceDescription
TRUEnever evaluated
FALSEnever evaluated
0
751 qWarning("QBmpHandler::canRead() called with 0 pointer");-
752 return false;
never executed: return false;
0
753 }-
754-
755 char head[2];-
756 if (device->peek(head, sizeof(head)) != sizeof(head))
device->peek(h...= sizeof(head)Description
TRUEnever evaluated
FALSEnever evaluated
0
757 return false;
never executed: return false;
0
758-
759 return (qstrncmp(head, "BM", 2) == 0);
never executed: return (qstrncmp(head, "BM", 2) == 0);
0
760}-
761-
762bool QBmpHandler::read(QImage *image)-
763{-
764 if (state == Error)
state == ErrorDescription
TRUEnever evaluated
FALSEnever evaluated
0
765 return false;
never executed: return false;
0
766-
767 if (!image) {
!imageDescription
TRUEnever evaluated
FALSEnever evaluated
0
768 qWarning("QBmpHandler::read: cannot read into null pointer");-
769 return false;
never executed: return false;
0
770 }-
771-
772 if (state == Ready && !readHeader()) {
state == ReadyDescription
TRUEnever evaluated
FALSEnever evaluated
!readHeader()Description
TRUEnever evaluated
FALSEnever evaluated
0
773 state = Error;-
774 return false;
never executed: return false;
0
775 }-
776-
777 QIODevice *d = device();-
778 QDataStream s(d);-
779-
780 // Intel byte order-
781 s.setByteOrder(QDataStream::LittleEndian);-
782-
783 // read image-
784 const bool readSuccess = m_format == BmpFormat ?
m_format == BmpFormatDescription
TRUEnever evaluated
FALSEnever evaluated
0
785 read_dib_body(s, infoHeader, fileHeader.bfOffBits, startpos, *image) :-
786 read_dib_body(s, infoHeader, -1, startpos - BMP_FILEHDR_SIZE, *image);-
787 if (!readSuccess)
!readSuccessDescription
TRUEnever evaluated
FALSEnever evaluated
0
788 return false;
never executed: return false;
0
789-
790 state = Ready;-
791 return true;
never executed: return true;
0
792}-
793-
794bool QBmpHandler::write(const QImage &img)-
795{-
796 if (m_format == DibFormat) {
m_format == DibFormatDescription
TRUEnever evaluated
FALSEnever evaluated
0
797 QDataStream dibStream(device());-
798 dibStream.setByteOrder(QDataStream::LittleEndian); // Intel byte order-
799 return qt_write_dib(dibStream, img);
never executed: return qt_write_dib(dibStream, img);
0
800 }-
801-
802 QImage image;-
803 switch (img.format()) {-
804 case QImage::Format_Mono:
never executed: case QImage::Format_Mono:
0
805 case QImage::Format_MonoLSB:
never executed: case QImage::Format_MonoLSB:
0
806 case QImage::Format_Indexed8:
never executed: case QImage::Format_Indexed8:
0
807 case QImage::Format_RGB32:
never executed: case QImage::Format_RGB32:
0
808 case QImage::Format_ARGB32:
never executed: case QImage::Format_ARGB32:
0
809 image = img;-
810 break;
never executed: break;
0
811 case QImage::Format_Alpha8:
never executed: case QImage::Format_Alpha8:
0
812 case QImage::Format_Grayscale8:
never executed: case QImage::Format_Grayscale8:
0
813 image = img.convertToFormat(QImage::Format_Indexed8);-
814 break;
never executed: break;
0
815 default:
never executed: default:
0
816 if (img.hasAlphaChannel())
img.hasAlphaChannel()Description
TRUEnever evaluated
FALSEnever evaluated
0
817 image = img.convertToFormat(QImage::Format_ARGB32);
never executed: image = img.convertToFormat(QImage::Format_ARGB32);
0
818 else-
819 image = img.convertToFormat(QImage::Format_RGB32);
never executed: image = img.convertToFormat(QImage::Format_RGB32);
0
820 break;
never executed: break;
0
821 }-
822-
823 QIODevice *d = device();-
824 QDataStream s(d);-
825 BMP_FILEHDR bf;-
826 int bpl_bmp;-
827 int bpl = image.bytesPerLine();-
828-
829 // Code partially repeated in qt_write_dib-
830 if (image.depth() == 8 && image.colorCount() <= 16) {
image.depth() == 8Description
TRUEnever evaluated
FALSEnever evaluated
image.colorCount() <= 16Description
TRUEnever evaluated
FALSEnever evaluated
0
831 bpl_bmp = (((bpl+1)/2+3)/4)*4;-
832 } else if (image.depth() == 32) {
never executed: end of block
image.depth() == 32Description
TRUEnever evaluated
FALSEnever evaluated
0
833 bpl_bmp = ((image.width()*24+31)/32)*4;-
834 } else {
never executed: end of block
0
835 bpl_bmp = bpl;-
836 }
never executed: end of block
0
837-
838 // Intel byte order-
839 s.setByteOrder(QDataStream::LittleEndian);-
840-
841 // build file header-
842 memcpy(bf.bfType, "BM", 2);-
843-
844 // write file header-
845 bf.bfReserved1 = 0;-
846 bf.bfReserved2 = 0;-
847 bf.bfOffBits = BMP_FILEHDR_SIZE + BMP_WIN + image.colorCount() * 4;-
848 bf.bfSize = bf.bfOffBits + bpl_bmp*image.height();-
849 s << bf;-
850-
851 // write image-
852 return qt_write_dib(s, image);
never executed: return qt_write_dib(s, image);
0
853}-
854-
855bool QBmpHandler::supportsOption(ImageOption option) const-
856{-
857 return option == Size
never executed: return option == Size || option == ImageFormat;
0
858 || option == ImageFormat;
never executed: return option == Size || option == ImageFormat;
0
859}-
860-
861QVariant QBmpHandler::option(ImageOption option) const-
862{-
863 if (option == Size) {
option == SizeDescription
TRUEnever evaluated
FALSEnever evaluated
0
864 if (state == Error)
state == ErrorDescription
TRUEnever evaluated
FALSEnever evaluated
0
865 return QVariant();
never executed: return QVariant();
0
866 if (state == Ready && !const_cast<QBmpHandler*>(this)->readHeader())
state == ReadyDescription
TRUEnever evaluated
FALSEnever evaluated
!const_cast<QB...->readHeader()Description
TRUEnever evaluated
FALSEnever evaluated
0
867 return QVariant();
never executed: return QVariant();
0
868 return QSize(infoHeader.biWidth, infoHeader.biHeight);
never executed: return QSize(infoHeader.biWidth, infoHeader.biHeight);
0
869 } else if (option == ImageFormat) {
option == ImageFormatDescription
TRUEnever evaluated
FALSEnever evaluated
0
870 if (state == Error)
state == ErrorDescription
TRUEnever evaluated
FALSEnever evaluated
0
871 return QVariant();
never executed: return QVariant();
0
872 if (state == Ready && !const_cast<QBmpHandler*>(this)->readHeader())
state == ReadyDescription
TRUEnever evaluated
FALSEnever evaluated
!const_cast<QB...->readHeader()Description
TRUEnever evaluated
FALSEnever evaluated
0
873 return QVariant();
never executed: return QVariant();
0
874 QImage::Format format;-
875 switch (infoHeader.biBitCount) {-
876 case 32:
never executed: case 32:
0
877 case 24:
never executed: case 24:
0
878 case 16:
never executed: case 16:
0
879 format = QImage::Format_RGB32;-
880 break;
never executed: break;
0
881 case 8:
never executed: case 8:
0
882 case 4:
never executed: case 4:
0
883 format = QImage::Format_Indexed8;-
884 break;
never executed: break;
0
885 default:
never executed: default:
0
886 format = QImage::Format_Mono;-
887 }
never executed: end of block
0
888 return format;
never executed: return format;
0
889 }-
890 return QVariant();
never executed: return QVariant();
0
891}-
892-
893void QBmpHandler::setOption(ImageOption option, const QVariant &value)-
894{-
895 Q_UNUSED(option);-
896 Q_UNUSED(value);-
897}
never executed: end of block
0
898-
899QByteArray QBmpHandler::name() const-
900{-
901 return formatName();
never executed: return formatName();
0
902}-
903-
904QT_END_NAMESPACE-
905-
906#endif // QT_NO_IMAGEFORMAT_BMP-
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