qbmphandler.cpp

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1/****************************************************************************-
2**-
3** Copyright (C) 2015 The Qt Company Ltd.-
4** Contact: http://www.qt.io/licensing/-
5**-
6** This file is part of the QtGui module of the Qt Toolkit.-
7**-
8** $QT_BEGIN_LICENSE:LGPL21$-
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 http://www.qt.io/terms-conditions. For further-
15** information use the contact form at http://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 2.1 or version 3 as published by the Free-
20** Software Foundation and appearing in the file LICENSE.LGPLv21 and-
21** LICENSE.LGPLv3 included in the packaging of this file. Please review the-
22** following information to ensure the GNU Lesser General Public License-
23** requirements will be met: https://www.gnu.org/licenses/lgpl.html and-
24** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.-
25**-
26** As a special exception, The Qt Company gives you certain additional-
27** rights. These rights are described in The Qt Company LGPL Exception-
28** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.-
29**-
30** $QT_END_LICENSE$-
31**-
32****************************************************************************/-
33-
34#include "private/qbmphandler_p.h"-
35-
36#ifndef QT_NO_IMAGEFORMAT_BMP-
37-
38#include <qimage.h>-
39#include <qvariant.h>-
40#include <qvector.h>-
41-
42QT_BEGIN_NAMESPACE-
43-
44static void swapPixel01(QImage *image) // 1-bpp: swap 0 and 1 pixels-
45{-
46 int i;-
47 if (image->depth() == 1 && image->colorCount() == 2) {
image->depth() == 1Description
TRUEnever evaluated
FALSEnever evaluated
image->colorCount() == 2Description
TRUEnever evaluated
FALSEnever evaluated
0
48 uint *p = (uint *)image->bits();-
49 int nbytes = image->byteCount();-
50 for (i=0; i<nbytes/4; i++) {
i<nbytes/4Description
TRUEnever evaluated
FALSEnever evaluated
0
51 *p = ~*p;-
52 p++;-
53 }
never executed: end of block
0
54 uchar *p2 = (uchar *)p;-
55 for (i=0; i<(nbytes&3); i++) {
i<(nbytes&3)Description
TRUEnever evaluated
FALSEnever evaluated
0
56 *p2 = ~*p2;-
57 p2++;-
58 }
never executed: end of block
0
59 QRgb t = image->color(0); // swap color 0 and 1-
60 image->setColor(0, image->color(1));-
61 image->setColor(1, t);-
62 }
never executed: end of block
0
63}
never executed: end of block
0
64-
65/*-
66 QImageIO::defineIOHandler("BMP", "^BM", 0,-
67 read_bmp_image, write_bmp_image);-
68*/-
69-
70/*****************************************************************************-
71 BMP (DIB) image read/write functions-
72 *****************************************************************************/-
73-
74const int BMP_FILEHDR_SIZE = 14; // size of BMP_FILEHDR data-
75-
76static QDataStream &operator>>(QDataStream &s, BMP_FILEHDR &bf)-
77{ // read file header-
78 s.readRawData(bf.bfType, 2);-
79 s >> bf.bfSize >> bf.bfReserved1 >> bf.bfReserved2 >> bf.bfOffBits;-
80 return s;
never executed: return s;
0
81}-
82-
83static QDataStream &operator<<(QDataStream &s, const BMP_FILEHDR &bf)-
84{ // write file header-
85 s.writeRawData(bf.bfType, 2);-
86 s << bf.bfSize << bf.bfReserved1 << bf.bfReserved2 << bf.bfOffBits;-
87 return s;
never executed: return s;
0
88}-
89-
90-
91const int BMP_OLD = 12; // old Windows/OS2 BMP size-
92const int BMP_WIN = 40; // Windows BMP v3 size-
93const int BMP_OS2 = 64; // new OS/2 BMP size-
94const int BMP_WIN4 = 108; // Windows BMP v4 size-
95const int BMP_WIN5 = 124; // Windows BMP v5 size-
96-
97const int BMP_RGB = 0; // no compression-
98const int BMP_RLE8 = 1; // run-length encoded, 8 bits-
99const int BMP_RLE4 = 2; // run-length encoded, 4 bits-
100const int BMP_BITFIELDS = 3; // RGB values encoded in data as bit-fields-
101-
102-
103static QDataStream &operator>>(QDataStream &s, BMP_INFOHDR &bi)-
104{-
105 s >> bi.biSize;-
106 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
107 s >> bi.biWidth >> bi.biHeight >> bi.biPlanes >> bi.biBitCount;-
108 s >> bi.biCompression >> bi.biSizeImage;-
109 s >> bi.biXPelsPerMeter >> bi.biYPelsPerMeter;-
110 s >> bi.biClrUsed >> bi.biClrImportant;-
111 }
never executed: end of block
0
112 else { // probably old Windows format-
113 qint16 w, h;-
114 s >> w >> h >> bi.biPlanes >> bi.biBitCount;-
115 bi.biWidth = w;-
116 bi.biHeight = h;-
117 bi.biCompression = BMP_RGB; // no compression-
118 bi.biSizeImage = 0;-
119 bi.biXPelsPerMeter = bi.biYPelsPerMeter = 0;-
120 bi.biClrUsed = bi.biClrImportant = 0;-
121 }
never executed: end of block
0
122 return s;
never executed: return s;
0
123}-
124-
125static QDataStream &operator<<(QDataStream &s, const BMP_INFOHDR &bi)-
126{-
127 s << bi.biSize;-
128 s << bi.biWidth << bi.biHeight;-
129 s << bi.biPlanes;-
130 s << bi.biBitCount;-
131 s << bi.biCompression;-
132 s << bi.biSizeImage;-
133 s << bi.biXPelsPerMeter << bi.biYPelsPerMeter;-
134 s << bi.biClrUsed << bi.biClrImportant;-
135 return s;
never executed: return s;
0
136}-
137-
138static int calc_shift(uint mask)-
139{-
140 int result = 0;-
141 while (mask && !(mask & 1)) {
maskDescription
TRUEnever evaluated
FALSEnever evaluated
!(mask & 1)Description
TRUEnever evaluated
FALSEnever evaluated
0
142 result++;-
143 mask >>= 1;-
144 }
never executed: end of block
0
145 return result;
never executed: return result;
0
146}-
147-
148static bool read_dib_fileheader(QDataStream &s, BMP_FILEHDR &bf)-
149{-
150 // read BMP file header-
151 s >> bf;-
152 if (s.status() != QDataStream::Ok)
s.status() != QDataStream::OkDescription
TRUEnever evaluated
FALSEnever evaluated
0
153 return false;
never executed: return false;
0
154-
155 // check header-
156 if (qstrncmp(bf.bfType,"BM",2) != 0)
qstrncmp(bf.bf...e,"BM",2) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
157 return false;
never executed: return false;
0
158-
159 return true;
never executed: return true;
0
160}-
161-
162static bool read_dib_infoheader(QDataStream &s, BMP_INFOHDR &bi)-
163{-
164 s >> bi; // read BMP info header-
165 if (s.status() != QDataStream::Ok)
s.status() != QDataStream::OkDescription
TRUEnever evaluated
FALSEnever evaluated
0
166 return false;
never executed: return false;
0
167-
168 int nbits = bi.biBitCount;-
169 int comp = bi.biCompression;-
170 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
171 bi.biPlanes != 1 || comp > BMP_BITFIELDS)
bi.biPlanes != 1Description
TRUEnever evaluated
FALSEnever evaluated
comp > BMP_BITFIELDSDescription
TRUEnever evaluated
FALSEnever evaluated
0
172 return false; // weird BMP image
never executed: return false;
0
173 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
174 (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
175 return false; // weird compression type
never executed: return false;
0
176-
177 return true;
never executed: return true;
0
178}-
179-
180static bool read_dib_body(QDataStream &s, const BMP_INFOHDR &bi, int offset, int startpos, QImage &image)-
181{-
182 QIODevice* d = s.device();-
183 if (d->atEnd()) // end of stream/file
d->atEnd()Description
TRUEnever evaluated
FALSEnever evaluated
0
184 return false;
never executed: return false;
0
185#if 0-
186 qDebug("offset...........%d", offset);-
187 qDebug("startpos.........%d", startpos);-
188 qDebug("biSize...........%d", bi.biSize);-
189 qDebug("biWidth..........%d", bi.biWidth);-
190 qDebug("biHeight.........%d", bi.biHeight);-
191 qDebug("biPlanes.........%d", bi.biPlanes);-
192 qDebug("biBitCount.......%d", bi.biBitCount);-
193 qDebug("biCompression....%d", bi.biCompression);-
194 qDebug("biSizeImage......%d", bi.biSizeImage);-
195 qDebug("biXPelsPerMeter..%d", bi.biXPelsPerMeter);-
196 qDebug("biYPelsPerMeter..%d", bi.biYPelsPerMeter);-
197 qDebug("biClrUsed........%d", bi.biClrUsed);-
198 qDebug("biClrImportant...%d", bi.biClrImportant);-
199#endif-
200 int w = bi.biWidth, h = bi.biHeight, nbits = bi.biBitCount;-
201 int t = bi.biSize, comp = bi.biCompression;-
202 uint red_mask = 0;-
203 uint green_mask = 0;-
204 uint blue_mask = 0;-
205 uint alpha_mask = 0;-
206 int red_shift = 0;-
207 int green_shift = 0;-
208 int blue_shift = 0;-
209 int alpha_shift = 0;-
210 int red_scale = 0;-
211 int green_scale = 0;-
212 int blue_scale = 0;-
213 int alpha_scale = 0;-
214-
215 if (!d->isSequential())
!d->isSequential()Description
TRUEnever evaluated
FALSEnever evaluated
0
216 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
217-
218 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
219 if (d->read((char *)&red_mask, sizeof(red_mask)) != sizeof(red_mask))
d->read((char ...zeof(red_mask)Description
TRUEnever evaluated
FALSEnever evaluated
0
220 return false;
never executed: return false;
0
221 if (d->read((char *)&green_mask, sizeof(green_mask)) != sizeof(green_mask))
d->read((char ...of(green_mask)Description
TRUEnever evaluated
FALSEnever evaluated
0
222 return false;
never executed: return false;
0
223 if (d->read((char *)&blue_mask, sizeof(blue_mask)) != sizeof(blue_mask))
d->read((char ...eof(blue_mask)Description
TRUEnever evaluated
FALSEnever evaluated
0
224 return false;
never executed: return false;
0
225-
226 // Read BMP v4+ header-
227 if (bi.biSize >= BMP_WIN4) {
bi.biSize >= BMP_WIN4Description
TRUEnever evaluated
FALSEnever evaluated
0
228 int CSType = 0;-
229 int gamma_red = 0;-
230 int gamma_green = 0;-
231 int gamma_blue = 0;-
232 int endpoints[9];-
233-
234 if (d->read((char *)&alpha_mask, sizeof(alpha_mask)) != sizeof(alpha_mask))
d->read((char ...of(alpha_mask)Description
TRUEnever evaluated
FALSEnever evaluated
0
235 return false;
never executed: return false;
0
236 if (d->read((char *)&CSType, sizeof(CSType)) != sizeof(CSType))
d->read((char ...sizeof(CSType)Description
TRUEnever evaluated
FALSEnever evaluated
0
237 return false;
never executed: return false;
0
238 if (d->read((char *)&endpoints, sizeof(endpoints)) != sizeof(endpoints))
d->read((char ...eof(endpoints)Description
TRUEnever evaluated
FALSEnever evaluated
0
239 return false;
never executed: return false;
0
240 if (d->read((char *)&gamma_red, sizeof(gamma_red)) != sizeof(gamma_red))
d->read((char ...eof(gamma_red)Description
TRUEnever evaluated
FALSEnever evaluated
0
241 return false;
never executed: return false;
0
242 if (d->read((char *)&gamma_green, sizeof(gamma_green)) != sizeof(gamma_green))
d->read((char ...f(gamma_green)Description
TRUEnever evaluated
FALSEnever evaluated
0
243 return false;
never executed: return false;
0
244 if (d->read((char *)&gamma_blue, sizeof(gamma_blue)) != sizeof(gamma_blue))
d->read((char ...of(gamma_blue)Description
TRUEnever evaluated
FALSEnever evaluated
0
245 return false;
never executed: return false;
0
246-
247 if (bi.biSize == BMP_WIN5) {
bi.biSize == BMP_WIN5Description
TRUEnever evaluated
FALSEnever evaluated
0
248 qint32 intent = 0;-
249 qint32 profileData = 0;-
250 qint32 profileSize = 0;-
251 qint32 reserved = 0;-
252-
253 if (d->read((char *)&intent, sizeof(intent)) != sizeof(intent))
d->read((char ...sizeof(intent)Description
TRUEnever evaluated
FALSEnever evaluated
0
254 return false;
never executed: return false;
0
255 if (d->read((char *)&profileData, sizeof(profileData)) != sizeof(profileData))
d->read((char ...f(profileData)Description
TRUEnever evaluated
FALSEnever evaluated
0
256 return false;
never executed: return false;
0
257 if (d->read((char *)&profileSize, sizeof(profileSize)) != sizeof(profileSize))
d->read((char ...f(profileSize)Description
TRUEnever evaluated
FALSEnever evaluated
0
258 return false;
never executed: return false;
0
259 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
260 return false;
never executed: return false;
0
261 }
never executed: end of block
0
262 }
never executed: end of block
0
263 }
never executed: end of block
0
264-
265 bool transp = (comp == BMP_BITFIELDS) && alpha_mask;
(comp == BMP_BITFIELDS)Description
TRUEnever evaluated
FALSEnever evaluated
alpha_maskDescription
TRUEnever evaluated
FALSEnever evaluated
0
266 int ncols = 0;-
267 int depth = 0;-
268 QImage::Format format;-
269 switch (nbits) {-
270 case 32:
never executed: case 32:
0
271 case 24:
never executed: case 24:
0
272 case 16:
never executed: case 16:
0
273 depth = 32;-
274 format = transp ? QImage::Format_ARGB32 : QImage::Format_RGB32;
transpDescription
TRUEnever evaluated
FALSEnever evaluated
0
275 break;
never executed: break;
0
276 case 8:
never executed: case 8:
0
277 case 4:
never executed: case 4:
0
278 depth = 8;-
279 format = QImage::Format_Indexed8;-
280 break;
never executed: break;
0
281 default:
never executed: default:
0
282 depth = 1;-
283 format = QImage::Format_Mono;-
284 }
never executed: end of block
0
285-
286 if (depth != 32) {
depth != 32Description
TRUEnever evaluated
FALSEnever evaluated
0
287 ncols = bi.biClrUsed ? bi.biClrUsed : 1 << nbits;
bi.biClrUsedDescription
TRUEnever evaluated
FALSEnever evaluated
0
288 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
289 return false;
never executed: return false;
0
290 }
never executed: end of block
0
291-
292 if (bi.biHeight < 0)
bi.biHeight < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
293 h = -h; // support images with negative height
never executed: h = -h;
0
294-
295 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
296 image = QImage(w, h, format);-
297 if (image.isNull()) // could not create image
image.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
0
298 return false;
never executed: return false;
0
299 if (ncols)
ncolsDescription
TRUEnever evaluated
FALSEnever evaluated
0
300 image.setColorCount(ncols); // Ensure valid QImage
never executed: image.setColorCount(ncols);
0
301 }
never executed: end of block
0
302-
303 image.setDotsPerMeterX(bi.biXPelsPerMeter);-
304 image.setDotsPerMeterY(bi.biYPelsPerMeter);-
305-
306 if (ncols > 0) { // read color table
ncols > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
307 image.setColorCount(ncols);-
308 uchar rgb[4];-
309 int rgb_len = t == BMP_OLD ? 3 : 4;
t == BMP_OLDDescription
TRUEnever evaluated
FALSEnever evaluated
0
310 for (int i=0; i<ncols; i++) {
i<ncolsDescription
TRUEnever evaluated
FALSEnever evaluated
0
311 if (d->read((char *)rgb, rgb_len) != rgb_len)
d->read((char ...en) != rgb_lenDescription
TRUEnever evaluated
FALSEnever evaluated
0
312 return false;
never executed: return false;
0
313 image.setColor(i, qRgb(rgb[2],rgb[1],rgb[0]));-
314 if (d->atEnd()) // truncated file
d->atEnd()Description
TRUEnever evaluated
FALSEnever evaluated
0
315 return false;
never executed: return false;
0
316 }
never executed: end of block
0
317 } 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
318 red_shift = calc_shift(red_mask);-
319 if (((red_mask >> red_shift) + 1) == 0)
((red_mask >> ...ift) + 1) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
320 return false;
never executed: return false;
0
321 red_scale = 256 / ((red_mask >> red_shift) + 1);-
322 green_shift = calc_shift(green_mask);-
323 if (((green_mask >> green_shift) + 1) == 0)
((green_mask >...ift) + 1) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
324 return false;
never executed: return false;
0
325 green_scale = 256 / ((green_mask >> green_shift) + 1);-
326 blue_shift = calc_shift(blue_mask);-
327 if (((blue_mask >> blue_shift) + 1) == 0)
((blue_mask >>...ift) + 1) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
328 return false;
never executed: return false;
0
329 blue_scale = 256 / ((blue_mask >> blue_shift) + 1);-
330 alpha_shift = calc_shift(alpha_mask);-
331 if (((alpha_mask >> alpha_shift) + 1) == 0)
((alpha_mask >...ift) + 1) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
332 return false;
never executed: return false;
0
333 alpha_scale = 256 / ((alpha_mask >> alpha_shift) + 1);-
334 } 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
335 blue_mask = 0x000000ff;-
336 green_mask = 0x0000ff00;-
337 red_mask = 0x00ff0000;-
338 blue_shift = 0;-
339 green_shift = 8;-
340 red_shift = 16;-
341 blue_scale = green_scale = red_scale = 1;-
342 } 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
343 blue_mask = 0x001f;-
344 green_mask = 0x03e0;-
345 red_mask = 0x7c00;-
346 blue_shift = 0;-
347 green_shift = 2;-
348 red_shift = 7;-
349 red_scale = 1;-
350 green_scale = 1;-
351 blue_scale = 8;-
352 }
never executed: end of block
0
353-
354#if 0-
355 qDebug("Rmask: %08x Rshift: %08x Rscale:%08x", red_mask, red_shift, red_scale);-
356 qDebug("Gmask: %08x Gshift: %08x Gscale:%08x", green_mask, green_shift, green_scale);-
357 qDebug("Bmask: %08x Bshift: %08x Bscale:%08x", blue_mask, blue_shift, blue_scale);-
358 qDebug("Amask: %08x Ashift: %08x Ascale:%08x", alpha_mask, alpha_shift, alpha_scale);-
359#endif-
360-
361 // offset can be bogus, be careful-
362 if (offset>=0 && startpos + offset > d->pos()) {
offset>=0Description
TRUEnever evaluated
FALSEnever evaluated
startpos + offset > d->pos()Description
TRUEnever evaluated
FALSEnever evaluated
0
363 if (!d->isSequential())
!d->isSequential()Description
TRUEnever evaluated
FALSEnever evaluated
0
364 d->seek(startpos + offset); // start of image data
never executed: d->seek(startpos + offset);
0
365 }
never executed: end of block
0
366-
367 int bpl = image.bytesPerLine();-
368 uchar *data = image.bits();-
369-
370 if (nbits == 1) { // 1 bit BMP image
nbits == 1Description
TRUEnever evaluated
FALSEnever evaluated
0
371 while (--h >= 0) {
--h >= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
372 if (d->read((char*)(data + h*bpl), bpl) != bpl)
d->read((char*...), bpl) != bplDescription
TRUEnever evaluated
FALSEnever evaluated
0
373 break;
never executed: break;
0
374 }
never executed: end of block
0
375 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
376 swapPixel01(&image); // pixel 0 is white!
never executed: swapPixel01(&image);
0
377 }
never executed: end of block
0
378-
379 else if (nbits == 4) { // 4 bit BMP image
nbits == 4Description
TRUEnever evaluated
FALSEnever evaluated
0
380 int buflen = ((w+7)/8)*4;-
381 uchar *buf = new uchar[buflen];-
382 if (comp == BMP_RLE4) { // run length compression
comp == BMP_RLE4Description
TRUEnever evaluated
FALSEnever evaluated
0
383 int x=0, y=0, c, i;-
384 quint8 b;-
385 uchar *p = data + (h-1)*bpl;-
386 const uchar *endp = p + w;-
387 while (y < h) {
y < hDescription
TRUEnever evaluated
FALSEnever evaluated
0
388 if (!d->getChar((char *)&b))
!d->getChar((char *)&b)Description
TRUEnever evaluated
FALSEnever evaluated
0
389 break;
never executed: break;
0
390 if (b == 0) { // escape code
b == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
391 if (!d->getChar((char *)&b) || b == 1) {
!d->getChar((char *)&b)Description
TRUEnever evaluated
FALSEnever evaluated
b == 1Description
TRUEnever evaluated
FALSEnever evaluated
0
392 y = h; // exit loop-
393 } else switch (b) {
never executed: end of block
0
394 case 0: // end of line
never executed: case 0:
0
395 x = 0;-
396 y++;-
397 p = data + (h-y-1)*bpl;-
398 break;
never executed: break;
0
399 case 2: // delta (jump)
never executed: case 2:
0
400 {-
401 quint8 tmp;-
402 d->getChar((char *)&tmp);-
403 x += tmp;-
404 d->getChar((char *)&tmp);-
405 y += tmp;-
406 }-
407-
408 // Protection-
409 if ((uint)x >= (uint)w)
(uint)x >= (uint)wDescription
TRUEnever evaluated
FALSEnever evaluated
0
410 x = w-1;
never executed: x = w-1;
0
411 if ((uint)y >= (uint)h)
(uint)y >= (uint)hDescription
TRUEnever evaluated
FALSEnever evaluated
0
412 y = h-1;
never executed: y = h-1;
0
413-
414 p = data + (h-y-1)*bpl + x;-
415 break;
never executed: break;
0
416 default: // absolute mode
never executed: default:
0
417 // Protection-
418 if (p + b > endp)
p + b > endpDescription
TRUEnever evaluated
FALSEnever evaluated
0
419 b = endp-p;
never executed: b = endp-p;
0
420-
421 i = (c = b)/2;-
422 while (i--) {
i--Description
TRUEnever evaluated
FALSEnever evaluated
0
423 d->getChar((char *)&b);-
424 *p++ = b >> 4;-
425 *p++ = b & 0x0f;-
426 }
never executed: end of block
0
427 if (c & 1) {
c & 1Description
TRUEnever evaluated
FALSEnever evaluated
0
428 unsigned char tmp;-
429 d->getChar((char *)&tmp);-
430 *p++ = tmp >> 4;-
431 }
never executed: end of block
0
432 if ((((c & 3) + 1) & 2) == 2)
(((c & 3) + 1) & 2) == 2Description
TRUEnever evaluated
FALSEnever evaluated
0
433 d->getChar(0); // align on word boundary
never executed: d->getChar(0);
0
434 x += c;-
435 }
never executed: end of block
0
436 } else { // encoded mode-
437 // Protection-
438 if (p + b > endp)
p + b > endpDescription
TRUEnever evaluated
FALSEnever evaluated
0
439 b = endp-p;
never executed: b = endp-p;
0
440-
441 i = (c = b)/2;-
442 d->getChar((char *)&b); // 2 pixels to be repeated-
443 while (i--) {
i--Description
TRUEnever evaluated
FALSEnever evaluated
0
444 *p++ = b >> 4;-
445 *p++ = b & 0x0f;-
446 }
never executed: end of block
0
447 if (c & 1)
c & 1Description
TRUEnever evaluated
FALSEnever evaluated
0
448 *p++ = b >> 4;
never executed: *p++ = b >> 4;
0
449 x += c;-
450 }
never executed: end of block
0
451 }-
452 } else if (comp == BMP_RGB) { // no compression
never executed: end of block
comp == BMP_RGBDescription
TRUEnever evaluated
FALSEnever evaluated
0
453 memset(data, 0, h*bpl);-
454 while (--h >= 0) {
--h >= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
455 if (d->read((char*)buf,buflen) != buflen)
d->read((char*...len) != buflenDescription
TRUEnever evaluated
FALSEnever evaluated
0
456 break;
never executed: break;
0
457 uchar *p = data + h*bpl;-
458 uchar *b = buf;-
459 for (int i=0; i<w/2; i++) { // convert nibbles to bytes
i<w/2Description
TRUEnever evaluated
FALSEnever evaluated
0
460 *p++ = *b >> 4;-
461 *p++ = *b++ & 0x0f;-
462 }
never executed: end of block
0
463 if (w & 1) // the last nibble
w & 1Description
TRUEnever evaluated
FALSEnever evaluated
0
464 *p = *b >> 4;
never executed: *p = *b >> 4;
0
465 }
never executed: end of block
0
466 }
never executed: end of block
0
467 delete [] buf;-
468 }
never executed: end of block
0
469-
470 else if (nbits == 8) { // 8 bit BMP image
nbits == 8Description
TRUEnever evaluated
FALSEnever evaluated
0
471 if (comp == BMP_RLE8) { // run length compression
comp == BMP_RLE8Description
TRUEnever evaluated
FALSEnever evaluated
0
472 int x=0, y=0;-
473 quint8 b;-
474 uchar *p = data + (h-1)*bpl;-
475 const uchar *endp = p + w;-
476 while (y < h) {
y < hDescription
TRUEnever evaluated
FALSEnever evaluated
0
477 if (!d->getChar((char *)&b))
!d->getChar((char *)&b)Description
TRUEnever evaluated
FALSEnever evaluated
0
478 break;
never executed: break;
0
479 if (b == 0) { // escape code
b == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
480 if (!d->getChar((char *)&b) || b == 1) {
!d->getChar((char *)&b)Description
TRUEnever evaluated
FALSEnever evaluated
b == 1Description
TRUEnever evaluated
FALSEnever evaluated
0
481 y = h; // exit loop-
482 } else switch (b) {
never executed: end of block
0
483 case 0: // end of line
never executed: case 0:
0
484 x = 0;-
485 y++;-
486 p = data + (h-y-1)*bpl;-
487 break;
never executed: break;
0
488 case 2: // delta (jump)
never executed: case 2:
0
489 {-
490 quint8 tmp;-
491 d->getChar((char *)&tmp);-
492 x += tmp;-
493 d->getChar((char *)&tmp);-
494 y += tmp;-
495 }-
496-
497 // Protection-
498 if ((uint)x >= (uint)w)
(uint)x >= (uint)wDescription
TRUEnever evaluated
FALSEnever evaluated
0
499 x = w-1;
never executed: x = w-1;
0
500 if ((uint)y >= (uint)h)
(uint)y >= (uint)hDescription
TRUEnever evaluated
FALSEnever evaluated
0
501 y = h-1;
never executed: y = h-1;
0
502-
503 p = data + (h-y-1)*bpl + x;-
504 break;
never executed: break;
0
505 default: // absolute mode
never executed: default:
0
506 // Protection-
507 if (p + b > endp)
p + b > endpDescription
TRUEnever evaluated
FALSEnever evaluated
0
508 b = endp-p;
never executed: b = endp-p;
0
509-
510 if (d->read((char *)p, b) != b)
d->read((char *)p, b) != bDescription
TRUEnever evaluated
FALSEnever evaluated
0
511 return false;
never executed: return false;
0
512 if ((b & 1) == 1)
(b & 1) == 1Description
TRUEnever evaluated
FALSEnever evaluated
0
513 d->getChar(0); // align on word boundary
never executed: d->getChar(0);
0
514 x += b;-
515 p += b;-
516 }
never executed: end of block
0
517 } else { // encoded mode-
518 // Protection-
519 if (p + b > endp)
p + b > endpDescription
TRUEnever evaluated
FALSEnever evaluated
0
520 b = endp-p;
never executed: b = endp-p;
0
521-
522 char tmp;-
523 d->getChar(&tmp);-
524 memset(p, tmp, b); // repeat pixel-
525 x += b;-
526 p += b;-
527 }
never executed: end of block
0
528 }-
529 } else if (comp == BMP_RGB) { // uncompressed
never executed: end of block
comp == BMP_RGBDescription
TRUEnever evaluated
FALSEnever evaluated
0
530 while (--h >= 0) {
--h >= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
531 if (d->read((char *)data + h*bpl, bpl) != bpl)
d->read((char ...l, bpl) != bplDescription
TRUEnever evaluated
FALSEnever evaluated
0
532 break;
never executed: break;
0
533 }
never executed: end of block
0
534 }
never executed: end of block
0
535 }
never executed: end of block
0
536-
537 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
538 QRgb *p;-
539 QRgb *end;-
540 uchar *buf24 = new uchar[bpl];-
541 int bpl24 = ((w*nbits+31)/32)*4;-
542 uchar *b;-
543 int c;-
544-
545 while (--h >= 0) {
--h >= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
546 p = (QRgb *)(data + h*bpl);-
547 end = p + w;-
548 if (d->read((char *)buf24,bpl24) != bpl24)
d->read((char ...pl24) != bpl24Description
TRUEnever evaluated
FALSEnever evaluated
0
549 break;
never executed: break;
0
550 b = buf24;-
551 while (p < end) {
p < endDescription
TRUEnever evaluated
FALSEnever evaluated
0
552 c = *(uchar*)b | (*(uchar*)(b+1)<<8);-
553 if (nbits > 16)
nbits > 16Description
TRUEnever evaluated
FALSEnever evaluated
0
554 c |= *(uchar*)(b+2)<<16;
never executed: c |= *(uchar*)(b+2)<<16;
0
555 if (nbits > 24)
nbits > 24Description
TRUEnever evaluated
FALSEnever evaluated
0
556 c |= *(uchar*)(b+3)<<24;
never executed: c |= *(uchar*)(b+3)<<24;
0
557 *p++ = qRgba(((c & red_mask) >> red_shift) * red_scale,-
558 ((c & green_mask) >> green_shift) * green_scale,-
559 ((c & blue_mask) >> blue_shift) * blue_scale,-
560 transp ? ((c & alpha_mask) >> alpha_shift) * alpha_scale : 0xff);-
561 b += nbits/8;-
562 }
never executed: end of block
0
563 }
never executed: end of block
0
564 delete[] buf24;-
565 }
never executed: end of block
0
566-
567 if (bi.biHeight < 0) {
bi.biHeight < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
568 // Flip the image-
569 uchar *buf = new uchar[bpl];-
570 h = -bi.biHeight;-
571 for (int y = 0; y < h/2; ++y) {
y < h/2Description
TRUEnever evaluated
FALSEnever evaluated
0
572 memcpy(buf, data + y*bpl, bpl);-
573 memcpy(data + y*bpl, data + (h-y-1)*bpl, bpl);-
574 memcpy(data + (h-y-1)*bpl, buf, bpl);-
575 }
never executed: end of block
0
576 delete [] buf;-
577 }
never executed: end of block
0
578-
579 return true;
never executed: return true;
0
580}-
581-
582// this is also used in qmime_win.cpp-
583bool qt_write_dib(QDataStream &s, QImage image)-
584{-
585 int nbits;-
586 int bpl_bmp;-
587 int bpl = image.bytesPerLine();-
588-
589 QIODevice* d = s.device();-
590 if (!d->isWritable())
!d->isWritable()Description
TRUEnever evaluated
FALSEnever evaluated
0
591 return false;
never executed: return false;
0
592-
593 if (image.depth() == 8 && image.colorCount() <= 16) {
image.depth() == 8Description
TRUEnever evaluated
FALSEnever evaluated
image.colorCount() <= 16Description
TRUEnever evaluated
FALSEnever evaluated
0
594 bpl_bmp = (((bpl+1)/2+3)/4)*4;-
595 nbits = 4;-
596 } else if (image.depth() == 32) {
never executed: end of block
image.depth() == 32Description
TRUEnever evaluated
FALSEnever evaluated
0
597 bpl_bmp = ((image.width()*24+31)/32)*4;-
598 nbits = 24;-
599 } else {
never executed: end of block
0
600 bpl_bmp = bpl;-
601 nbits = image.depth();-
602 }
never executed: end of block
0
603-
604 BMP_INFOHDR bi;-
605 bi.biSize = BMP_WIN; // build info header-
606 bi.biWidth = image.width();-
607 bi.biHeight = image.height();-
608 bi.biPlanes = 1;-
609 bi.biBitCount = nbits;-
610 bi.biCompression = BMP_RGB;-
611 bi.biSizeImage = bpl_bmp*image.height();-
612 bi.biXPelsPerMeter = image.dotsPerMeterX() ? image.dotsPerMeterX()
image.dotsPerMeterX()Description
TRUEnever evaluated
FALSEnever evaluated
0
613 : 2834; // 72 dpi default-
614 bi.biYPelsPerMeter = image.dotsPerMeterY() ? image.dotsPerMeterY() : 2834;
image.dotsPerMeterY()Description
TRUEnever evaluated
FALSEnever evaluated
0
615 bi.biClrUsed = image.colorCount();-
616 bi.biClrImportant = image.colorCount();-
617 s << bi; // write info header-
618 if (s.status() != QDataStream::Ok)
s.status() != QDataStream::OkDescription
TRUEnever evaluated
FALSEnever evaluated
0
619 return false;
never executed: return false;
0
620-
621 if (image.depth() != 32) { // write color table
image.depth() != 32Description
TRUEnever evaluated
FALSEnever evaluated
0
622 uchar *color_table = new uchar[4*image.colorCount()];-
623 uchar *rgb = color_table;-
624 QVector<QRgb> c = image.colorTable();-
625 for (int i=0; i<image.colorCount(); i++) {
i<image.colorCount()Description
TRUEnever evaluated
FALSEnever evaluated
0
626 *rgb++ = qBlue (c[i]);-
627 *rgb++ = qGreen(c[i]);-
628 *rgb++ = qRed (c[i]);-
629 *rgb++ = 0;-
630 }
never executed: end of block
0
631 if (d->write((char *)color_table, 4*image.colorCount()) == -1) {
d->write((char...Count()) == -1Description
TRUEnever evaluated
FALSEnever evaluated
0
632 delete [] color_table;-
633 return false;
never executed: return false;
0
634 }-
635 delete [] color_table;-
636 }
never executed: end of block
0
637-
638 if (image.format() == QImage::Format_MonoLSB)
image.format()...Format_MonoLSBDescription
TRUEnever evaluated
FALSEnever evaluated
0
639 image = image.convertToFormat(QImage::Format_Mono);
never executed: image = image.convertToFormat(QImage::Format_Mono);
0
640-
641 int y;-
642-
643 if (nbits == 1 || nbits == 8) { // direct output
nbits == 1Description
TRUEnever evaluated
FALSEnever evaluated
nbits == 8Description
TRUEnever evaluated
FALSEnever evaluated
0
644 for (y=image.height()-1; y>=0; y--) {
y>=0Description
TRUEnever evaluated
FALSEnever evaluated
0
645 if (d->write((const char*)image.constScanLine(y), bpl) == -1)
d->write((cons...y), bpl) == -1Description
TRUEnever evaluated
FALSEnever evaluated
0
646 return false;
never executed: return false;
0
647 }
never executed: end of block
0
648 return true;
never executed: return true;
0
649 }-
650-
651 uchar *buf = new uchar[bpl_bmp];-
652 uchar *b, *end;-
653 const uchar *p;-
654-
655 memset(buf, 0, bpl_bmp);-
656 for (y=image.height()-1; y>=0; y--) { // write the image bits
y>=0Description
TRUEnever evaluated
FALSEnever evaluated
0
657 if (nbits == 4) { // convert 8 -> 4 bits
nbits == 4Description
TRUEnever evaluated
FALSEnever evaluated
0
658 p = image.constScanLine(y);-
659 b = buf;-
660 end = b + image.width()/2;-
661 while (b < end) {
b < endDescription
TRUEnever evaluated
FALSEnever evaluated
0
662 *b++ = (*p << 4) | (*(p+1) & 0x0f);-
663 p += 2;-
664 }
never executed: end of block
0
665 if (image.width() & 1)
image.width() & 1Description
TRUEnever evaluated
FALSEnever evaluated
0
666 *b = *p << 4;
never executed: *b = *p << 4;
0
667 } else { // 32 bits
never executed: end of block
0
668 const QRgb *p = (const QRgb *)image.constScanLine(y);-
669 const QRgb *end = p + image.width();-
670 b = buf;-
671 while (p < end) {
p < endDescription
TRUEnever evaluated
FALSEnever evaluated
0
672 *b++ = qBlue(*p);-
673 *b++ = qGreen(*p);-
674 *b++ = qRed(*p);-
675 p++;-
676 }
never executed: end of block
0
677 }
never executed: end of block
0
678 if (bpl_bmp != d->write((char*)buf, bpl_bmp)) {
bpl_bmp != d->...)buf, bpl_bmp)Description
TRUEnever evaluated
FALSEnever evaluated
0
679 delete[] buf;-
680 return false;
never executed: return false;
0
681 }-
682 }
never executed: end of block
0
683 delete[] buf;-
684 return true;
never executed: return true;
0
685}-
686-
687// this is also used in qmime_win.cpp-
688bool qt_read_dib(QDataStream &s, QImage &image)-
689{-
690 BMP_INFOHDR bi;-
691 if (!read_dib_infoheader(s, bi))
!read_dib_infoheader(s, bi)Description
TRUEnever evaluated
FALSEnever evaluated
0
692 return false;
never executed: return false;
0
693 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
694}-
695-
696QBmpHandler::QBmpHandler(InternalFormat fmt) :-
697 m_format(fmt), state(Ready)-
698{-
699}
never executed: end of block
0
700-
701QByteArray QBmpHandler::formatName() const-
702{-
703 return m_format == BmpFormat ? "bmp" : "dib";
never executed: return m_format == BmpFormat ? "bmp" : "dib";
m_format == BmpFormatDescription
TRUEnever evaluated
FALSEnever evaluated
0
704}-
705-
706bool QBmpHandler::readHeader()-
707{-
708 state = Error;-
709-
710 QIODevice *d = device();-
711 QDataStream s(d);-
712 startpos = d->pos();-
713-
714 // Intel byte order-
715 s.setByteOrder(QDataStream::LittleEndian);-
716-
717 // read BMP file header-
718 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
719 return false;
never executed: return false;
0
720-
721 // read BMP info header-
722 if (!read_dib_infoheader(s, infoHeader))
!read_dib_info...s, infoHeader)Description
TRUEnever evaluated
FALSEnever evaluated
0
723 return false;
never executed: return false;
0
724-
725 state = ReadHeader;-
726 return true;
never executed: return true;
0
727}-
728-
729bool QBmpHandler::canRead() const-
730{-
731 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
732 return false;
never executed: return false;
0
733-
734 if (state != Error) {
state != ErrorDescription
TRUEnever evaluated
FALSEnever evaluated
0
735 setFormat(formatName());-
736 return true;
never executed: return true;
0
737 }-
738-
739 return false;
never executed: return false;
0
740}-
741-
742bool QBmpHandler::canRead(QIODevice *device)-
743{-
744 if (!device) {
!deviceDescription
TRUEnever evaluated
FALSEnever evaluated
0
745 qWarning("QBmpHandler::canRead() called with 0 pointer");-
746 return false;
never executed: return false;
0
747 }-
748-
749 char head[2];-
750 if (device->peek(head, sizeof(head)) != sizeof(head))
device->peek(h...= sizeof(head)Description
TRUEnever evaluated
FALSEnever evaluated
0
751 return false;
never executed: return false;
0
752-
753 return (qstrncmp(head, "BM", 2) == 0);
never executed: return (qstrncmp(head, "BM", 2) == 0);
0
754}-
755-
756bool QBmpHandler::read(QImage *image)-
757{-
758 if (state == Error)
state == ErrorDescription
TRUEnever evaluated
FALSEnever evaluated
0
759 return false;
never executed: return false;
0
760-
761 if (!image) {
!imageDescription
TRUEnever evaluated
FALSEnever evaluated
0
762 qWarning("QBmpHandler::read: cannot read into null pointer");-
763 return false;
never executed: return false;
0
764 }-
765-
766 if (state == Ready && !readHeader()) {
state == ReadyDescription
TRUEnever evaluated
FALSEnever evaluated
!readHeader()Description
TRUEnever evaluated
FALSEnever evaluated
0
767 state = Error;-
768 return false;
never executed: return false;
0
769 }-
770-
771 QIODevice *d = device();-
772 QDataStream s(d);-
773-
774 // Intel byte order-
775 s.setByteOrder(QDataStream::LittleEndian);-
776-
777 // read image-
778 const bool readSuccess = m_format == BmpFormat ?
m_format == BmpFormatDescription
TRUEnever evaluated
FALSEnever evaluated
0
779 read_dib_body(s, infoHeader, fileHeader.bfOffBits, startpos, *image) :-
780 read_dib_body(s, infoHeader, -1, startpos - BMP_FILEHDR_SIZE, *image);-
781 if (!readSuccess)
!readSuccessDescription
TRUEnever evaluated
FALSEnever evaluated
0
782 return false;
never executed: return false;
0
783-
784 state = Ready;-
785 return true;
never executed: return true;
0
786}-
787-
788bool QBmpHandler::write(const QImage &img)-
789{-
790 if (m_format == DibFormat) {
m_format == DibFormatDescription
TRUEnever evaluated
FALSEnever evaluated
0
791 QDataStream dibStream(device());-
792 dibStream.setByteOrder(QDataStream::LittleEndian); // Intel byte order-
793 return qt_write_dib(dibStream, img);
never executed: return qt_write_dib(dibStream, img);
0
794 }-
795-
796 QImage image;-
797 switch (img.format()) {-
798 case QImage::Format_Mono:
never executed: case QImage::Format_Mono:
0
799 case QImage::Format_MonoLSB:
never executed: case QImage::Format_MonoLSB:
0
800 case QImage::Format_Indexed8:
never executed: case QImage::Format_Indexed8:
0
801 case QImage::Format_RGB32:
never executed: case QImage::Format_RGB32:
0
802 case QImage::Format_ARGB32:
never executed: case QImage::Format_ARGB32:
0
803 image = img;-
804 break;
never executed: break;
0
805 case QImage::Format_Alpha8:
never executed: case QImage::Format_Alpha8:
0
806 case QImage::Format_Grayscale8:
never executed: case QImage::Format_Grayscale8:
0
807 image = img.convertToFormat(QImage::Format_Indexed8);-
808 break;
never executed: break;
0
809 default:
never executed: default:
0
810 if (img.hasAlphaChannel())
img.hasAlphaChannel()Description
TRUEnever evaluated
FALSEnever evaluated
0
811 image = img.convertToFormat(QImage::Format_ARGB32);
never executed: image = img.convertToFormat(QImage::Format_ARGB32);
0
812 else-
813 image = img.convertToFormat(QImage::Format_RGB32);
never executed: image = img.convertToFormat(QImage::Format_RGB32);
0
814 break;
never executed: break;
0
815 }-
816-
817 QIODevice *d = device();-
818 QDataStream s(d);-
819 BMP_FILEHDR bf;-
820 int bpl_bmp;-
821 int bpl = image.bytesPerLine();-
822-
823 // Code partially repeated in qt_write_dib-
824 if (image.depth() == 8 && image.colorCount() <= 16) {
image.depth() == 8Description
TRUEnever evaluated
FALSEnever evaluated
image.colorCount() <= 16Description
TRUEnever evaluated
FALSEnever evaluated
0
825 bpl_bmp = (((bpl+1)/2+3)/4)*4;-
826 } else if (image.depth() == 32) {
never executed: end of block
image.depth() == 32Description
TRUEnever evaluated
FALSEnever evaluated
0
827 bpl_bmp = ((image.width()*24+31)/32)*4;-
828 } else {
never executed: end of block
0
829 bpl_bmp = bpl;-
830 }
never executed: end of block
0
831-
832 // Intel byte order-
833 s.setByteOrder(QDataStream::LittleEndian);-
834-
835 // build file header-
836 memcpy(bf.bfType, "BM", 2);-
837-
838 // write file header-
839 bf.bfReserved1 = 0;-
840 bf.bfReserved2 = 0;-
841 bf.bfOffBits = BMP_FILEHDR_SIZE + BMP_WIN + image.colorCount() * 4;-
842 bf.bfSize = bf.bfOffBits + bpl_bmp*image.height();-
843 s << bf;-
844-
845 // write image-
846 return qt_write_dib(s, image);
never executed: return qt_write_dib(s, image);
0
847}-
848-
849bool QBmpHandler::supportsOption(ImageOption option) const-
850{-
851 return option == Size
never executed: return option == Size || option == ImageFormat;
option == SizeDescription
TRUEnever evaluated
FALSEnever evaluated
0
852 || option == ImageFormat;
never executed: return option == Size || option == ImageFormat;
option == ImageFormatDescription
TRUEnever evaluated
FALSEnever evaluated
0
853}-
854-
855QVariant QBmpHandler::option(ImageOption option) const-
856{-
857 if (option == Size) {
option == SizeDescription
TRUEnever evaluated
FALSEnever evaluated
0
858 if (state == Error)
state == ErrorDescription
TRUEnever evaluated
FALSEnever evaluated
0
859 return QVariant();
never executed: return QVariant();
0
860 if (state == Ready && !const_cast<QBmpHandler*>(this)->readHeader())
state == ReadyDescription
TRUEnever evaluated
FALSEnever evaluated
!const_cast<QB...->readHeader()Description
TRUEnever evaluated
FALSEnever evaluated
0
861 return QVariant();
never executed: return QVariant();
0
862 return QSize(infoHeader.biWidth, infoHeader.biHeight);
never executed: return QSize(infoHeader.biWidth, infoHeader.biHeight);
0
863 } else if (option == ImageFormat) {
option == ImageFormatDescription
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 QImage::Format format;-
869 switch (infoHeader.biBitCount) {-
870 case 32:
never executed: case 32:
0
871 case 24:
never executed: case 24:
0
872 case 16:
never executed: case 16:
0
873 format = QImage::Format_RGB32;-
874 break;
never executed: break;
0
875 case 8:
never executed: case 8:
0
876 case 4:
never executed: case 4:
0
877 format = QImage::Format_Indexed8;-
878 break;
never executed: break;
0
879 default:
never executed: default:
0
880 format = QImage::Format_Mono;-
881 }
never executed: end of block
0
882 return format;
never executed: return format;
0
883 }-
884 return QVariant();
never executed: return QVariant();
0
885}-
886-
887void QBmpHandler::setOption(ImageOption option, const QVariant &value)-
888{-
889 Q_UNUSED(option);-
890 Q_UNUSED(value);-
891}
never executed: end of block
0
892-
893QByteArray QBmpHandler::name() const-
894{-
895 return formatName();
never executed: return formatName();
0
896}-
897-
898QT_END_NAMESPACE-
899-
900#endif // QT_NO_IMAGEFORMAT_BMP-
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