KImageFormats

jxr.cpp
1/*
2 This file is part of the KDE project
3 SPDX-FileCopyrightText: 2024 Mirco Miranda <mircomir@outlook.com>
4
5 SPDX-License-Identifier: LGPL-2.0-or-later
6*/
7
8/*
9 * Info about JXR:
10 * - https://learn.microsoft.com/en-us/windows/win32/wic/jpeg-xr-codec
11 *
12 * Sample images:
13 * - http://fileformats.archiveteam.org/wiki/JPEG_XR
14 * - https://github.com/bvibber/hdrfix/tree/main/samples
15 */
16
17#include "jxr_p.h"
18#include "microexif_p.h"
19#include "util_p.h"
20
21#include <QColorSpace>
22#include <QCoreApplication>
23#include <QDataStream>
24#include <QFile>
25#include <QFloat16>
26#include <QHash>
27#include <QImage>
28#include <QImageReader>
29#include <QLoggingCategory>
30#include <QSet>
31#include <QSharedData>
32#include <QTemporaryDir>
33
34#include <JXRGlue.h>
35#include <cstring>
36
37Q_DECLARE_LOGGING_CATEGORY(LOG_JXRPLUGIN)
38Q_LOGGING_CATEGORY(LOG_JXRPLUGIN, "kf.imageformats.plugins.jxr", QtWarningMsg)
39
40/*!
41 * Support for float images
42 *
43 * NOTE: Float images have values greater than 1 so they need an additional in place conversion.
44 */
45// #define JXR_DENY_FLOAT_IMAGE
46
47/*!
48 * Remove the neeeds of additional memory by disabling the conversion between
49 * different color depths (e.g. RGBA64bpp to RGBA32bpp).
50 *
51 * NOTE: Leaving deptch conversion enabled (default) ensures maximum read compatibility.
52 */
53// #define JXR_DISABLE_DEPTH_CONVERSION // default commented
54
55/*!
56 * Windows displays and opens JXR files correctly out of the box. Unfortunately it doesn't
57 * seem to open (P)RGBA @32bpp files as it only wants (P)BGRA32bpp files (a format not supported by Qt).
58 * Only for this format an hack is activated to guarantee total compatibility of the plugin with Windows.
59 */
60// #define JXR_DISABLE_BGRA_HACK // default commented
61
62/*!
63 * The following functions are present in the Debian headers but not in the SUSE ones even if the source version is 1.0.1 on both.
64 *
65 * - ERR PKImageDecode_GetXMPMetadata_WMP(PKImageDecode *pID, U8 *pbXMPMetadata, U32 *pcbXMPMetadata);
66 * - ERR PKImageDecode_GetEXIFMetadata_WMP(PKImageDecode *pID, U8 *pbEXIFMetadata, U32 *pcbEXIFMetadata);
67 * - ERR PKImageDecode_GetGPSInfoMetadata_WMP(PKImageDecode *pID, U8 *pbGPSInfoMetadata, U32 *pcbGPSInfoMetadata);
68 * - ERR PKImageDecode_GetIPTCNAAMetadata_WMP(PKImageDecode *pID, U8 *pbIPTCNAAMetadata, U32 *pcbIPTCNAAMetadata);
69 * - ERR PKImageDecode_GetPhotoshopMetadata_WMP(PKImageDecode *pID, U8 *pbPhotoshopMetadata, U32 *pcbPhotoshopMetadata);
70 *
71 * As a result, their use is disabled by default. It is possible to activate their use by defining the
72 * JXR_ENABLE_ADVANCED_METADATA preprocessor directive
73 */
74
75// #define JXR_ENABLE_ADVANCED_METADATA
76
77#ifndef JXR_MAX_METADATA_SIZE
78/*!
79 * XMP and EXIF maximum size.
80 */
81#define JXR_MAX_METADATA_SIZE (4 * 1024 * 1024)
82#endif
83
84class JXRHandlerPrivate : public QSharedData
85{
86private:
87 QSharedPointer<QTemporaryDir> m_tempDir;
88 QSharedPointer<QFile> m_jxrFile;
89 MicroExif m_exif;
90 qint32 m_quality;
91 QImageIOHandler::Transformations m_transformations;
92 mutable QHash<QString, QString> m_txtMeta;
93
94public:
95 PKFactory *pFactory = nullptr;
96 PKCodecFactory *pCodecFactory = nullptr;
97 PKImageDecode *pDecoder = nullptr;
98 PKImageEncode *pEncoder = nullptr;
99
100 JXRHandlerPrivate()
101 : m_quality(-1)
102 , m_transformations(QImageIOHandler::TransformationNone)
103 {
104 m_tempDir = QSharedPointer<QTemporaryDir>(new QTemporaryDir);
105 if (PKCreateFactory(&pFactory, PK_SDK_VERSION) == WMP_errSuccess) {
106 PKCreateCodecFactory(&pCodecFactory, WMP_SDK_VERSION);
107 }
108 if (pFactory == nullptr || pCodecFactory == nullptr) {
109 qCWarning(LOG_JXRPLUGIN) << "JXRHandlerPrivate::JXRHandlerPrivate() initialization error of JXR library!";
110 }
111 }
112 JXRHandlerPrivate(const JXRHandlerPrivate &other) = default;
113
114 ~JXRHandlerPrivate()
115 {
116 if (pCodecFactory) {
117 PKCreateCodecFactory_Release(&pCodecFactory);
118 }
119 if (pFactory) {
120 PKCreateFactory_Release(&pFactory);
121 }
122 if (pDecoder) {
123 PKImageDecode_Release(&pDecoder);
124 }
125 if (pEncoder) {
126 PKImageEncode_Release(&pEncoder);
127 }
128 }
129
130 QString fileName() const
131 {
132 return m_jxrFile->fileName();
133 }
134
135 /*!
136 * \brief setQuality
137 * Set the image quality (write only)
138 * \param q
139 */
140 void setQuality(qint32 q)
141 {
142 m_quality = q;
143 }
144 qint32 quality() const
145 {
146 return m_quality;
147 }
148
149 /*!
150 * \brief setTransformation
151 * Set the image transformation (read/write)
152 * \param t
153 */
154 void setTransformation(const QImageIOHandler::Transformations& t)
155 {
156 m_transformations = t;
157 }
158 QImageIOHandler::Transformations transformation() const
159 {
160 return m_transformations;
161 }
162
163 static QImageIOHandler::Transformations orientationToTransformation(const ORIENTATION& o)
164 {
165 auto v = QImageIOHandler::TransformationNone;
166 switch (o) {
167 case O_FLIPV:
168 v = QImageIOHandler::TransformationFlip;
169 break;
170 case O_FLIPH:
171 v = QImageIOHandler::TransformationMirror;
172 break;
173 case O_FLIPVH:
174 v = QImageIOHandler::TransformationRotate180;
175 break;
176 case O_RCW:
177 v = QImageIOHandler::TransformationRotate90;
178 break;
179 case O_RCW_FLIPH:
180 v = QImageIOHandler::TransformationFlipAndRotate90;
181 break;
182 case O_RCW_FLIPV:
183 v = QImageIOHandler::TransformationMirrorAndRotate90;
184 break;
185 case O_RCW_FLIPVH:
186 v = QImageIOHandler::TransformationRotate270;
187 break;
188 default:
189 v = QImageIOHandler::TransformationNone;
190 break;
191 }
192 return v;
193 }
194 static ORIENTATION transformationToOrientation(const QImageIOHandler::Transformations& t)
195 {
196 auto v = O_NONE;
197 switch (t) {
198 case QImageIOHandler::TransformationFlip:
199 v = O_FLIPV;
200 break;
201 case QImageIOHandler::TransformationMirror:
202 v = O_FLIPH;
203 break;
204 case QImageIOHandler::TransformationRotate180:
205 v = O_FLIPVH;
206 break;
207 case QImageIOHandler::TransformationRotate90:
208 v = O_RCW;
209 break;
210 case QImageIOHandler::TransformationFlipAndRotate90:
211 v = O_RCW_FLIPH;
212 break;
213 case QImageIOHandler::TransformationMirrorAndRotate90:
214 v = O_RCW_FLIPV;
215 break;
216 case QImageIOHandler::TransformationRotate270:
217 v = O_RCW_FLIPVH;
218 break;
219 default:
220 v = O_NONE;
221 break;
222 }
223 return v;
224 }
225
226
227 /* *** READ *** */
228
229 /*!
230 * \brief initForReading
231 * Initialize the device for reading.
232 * \param device The source device.
233 * \return True on success, otherwise false.
234 */
235 bool initForReading(QIODevice *device)
236 {
237 if (!readDevice(device)) {
238 return false;
239 }
240 if (!initDecoder()) {
241 return false;
242 }
243 return true;
244 }
245
246 /*!
247 * \brief jxrFormat
248 * \return The JXR format.
249 */
250 PKPixelFormatGUID jxrFormat() const
251 {
252 PKPixelFormatGUID pixelFormatGUID = GUID_PKPixelFormatUndefined;
253 if (pDecoder) {
254 pDecoder->GetPixelFormat(pDecoder, &pixelFormatGUID);
255 }
256 return pixelFormatGUID;
257 }
258
259 /*!
260 * \brief imageFormat
261 * Calculate the image format from the JXR format. In conversionFormat it returns the possible conversion format of the JXR to match the returned Qt format.
262 * \return The QImage format. If invalid, the image cannot be read.
263 */
264 QImage::Format imageFormat(PKPixelFormatGUID *conversionFormat = nullptr) const
265 {
266 PKPixelFormatGUID tmp;
267 if (conversionFormat == nullptr) {
268 conversionFormat = &tmp;
269 }
270 *conversionFormat = GUID_PKPixelFormatUndefined;
271
272 auto jxrfmt = jxrFormat();
273 auto qtFormat = exactFormat(jxrfmt);
274 if (qtFormat != QImage::Format_Invalid) {
275 return qtFormat;
276 }
277
278 // *** CONVERSION WITH THE SAME DEPTH ***
279 // IMPORTANT: For supported conversions see JXRGluePFC.c
280
281 // 32-bit
282 if (IsEqualGUID(jxrfmt, GUID_PKPixelFormat32bppBGR)) {
283 *conversionFormat = GUID_PKPixelFormat24bppRGB;
284 return QImage::Format_RGB888;
285 };
286 if (IsEqualGUID(jxrfmt, GUID_PKPixelFormat32bppBGRA)) {
287 *conversionFormat = GUID_PKPixelFormat32bppRGBA;
288 return QImage::Format_RGBA8888;
289 };
290 if (IsEqualGUID(jxrfmt, GUID_PKPixelFormat32bppPBGRA)) {
291 *conversionFormat = GUID_PKPixelFormat32bppPRGBA;
292 return QImage::Format_RGBA8888_Premultiplied;
293 };
294
295#ifndef JXR_DENY_FLOAT_IMAGE
296 if (IsEqualGUID(jxrfmt, GUID_PKPixelFormat128bppRGBAFixedPoint)) {
297 *conversionFormat = GUID_PKPixelFormat128bppRGBAFloat;
298 return QImage::Format_RGBA32FPx4;
299 };
300#endif // !JXR_DENY_FLOAT_IMAGE
301
302 // *** CONVERSION TO A LOWER DEPTH ***
303 // IMPORTANT: For supported conversions see JXRGluePFC.c
304
305#ifndef JXR_DISABLE_DEPTH_CONVERSION
306
307#ifndef JXR_DENY_FLOAT_IMAGE
308 // RGB FLOAT
309 if (IsEqualGUID(jxrfmt, GUID_PKPixelFormat96bppRGBFloat)) {
310 *conversionFormat = GUID_PKPixelFormat64bppRGBHalf;
311 return QImage::Format_RGBX16FPx4;
312 };
313#endif // !JXR_DENY_FLOAT_IMAGE
314
315 // RGBA
316 // clang-format off
317 if (IsEqualGUID(jxrfmt, GUID_PKPixelFormat64bppRGBAHalf) ||
318 IsEqualGUID(jxrfmt, GUID_PKPixelFormat64bppRGBAFixedPoint) ||
319 IsEqualGUID(jxrfmt, GUID_PKPixelFormat128bppRGBAFixedPoint) ||
320 IsEqualGUID(jxrfmt, GUID_PKPixelFormat128bppRGBAFloat)) {
321
322 *conversionFormat = GUID_PKPixelFormat32bppRGBA;
323 return QImage::Format_RGBA8888;
324 };
325 // clang-format on
326
327 // RGB
328 // clang-format off
329 if (IsEqualGUID(jxrfmt, GUID_PKPixelFormat128bppRGBFloat) ||
330 IsEqualGUID(jxrfmt, GUID_PKPixelFormat96bppRGBFloat) ||
331 IsEqualGUID(jxrfmt, GUID_PKPixelFormat64bppRGBFixedPoint) ||
332 IsEqualGUID(jxrfmt, GUID_PKPixelFormat96bppRGBFixedPoint) ||
333 IsEqualGUID(jxrfmt, GUID_PKPixelFormat128bppRGBFixedPoint) ||
334 IsEqualGUID(jxrfmt, GUID_PKPixelFormat48bppRGBHalf) ||
335 IsEqualGUID(jxrfmt, GUID_PKPixelFormat64bppRGBHalf) ||
336 IsEqualGUID(jxrfmt, GUID_PKPixelFormat48bppRGBFixedPoint) ||
337 IsEqualGUID(jxrfmt, GUID_PKPixelFormat32bppRGB101010) ||
338 IsEqualGUID(jxrfmt, GUID_PKPixelFormat48bppRGB) ||
339 IsEqualGUID(jxrfmt, GUID_PKPixelFormat32bppRGBE) ) {
340
341 *conversionFormat = GUID_PKPixelFormat24bppRGB;
342 return QImage::Format_RGB888;
343 };
344 // clang-format on
345
346 // Gray
347 // clang-format off
348 if (IsEqualGUID(jxrfmt, GUID_PKPixelFormat32bppGrayFloat) ||
349 IsEqualGUID(jxrfmt, GUID_PKPixelFormat16bppGrayFixedPoint) ||
350 IsEqualGUID(jxrfmt, GUID_PKPixelFormat32bppGrayFixedPoint) ||
351 IsEqualGUID(jxrfmt, GUID_PKPixelFormat16bppGrayHalf)) {
352
353 *conversionFormat = GUID_PKPixelFormat8bppGray;
354 return QImage::Format_Grayscale8;
355 };
356 // clang-format on
357#endif // !JXR_DISABLE_DEPTH_CONVERSION
358
359 return QImage::Format_Invalid;
360 }
361
362 /*!
363 * \brief imageSize
364 * \return The image size in pixels.
365 */
366 QSize imageSize() const
367 {
368 if (pDecoder) {
369 qint32 w, h;
370 pDecoder->GetSize(pDecoder, &w, &h);
371 return QSize(w, h);
372 }
373 return {};
374 }
375
376 /*!
377 * \brief colorSpace
378 * \return The ICC profile if exists.
379 */
380 QColorSpace colorSpace() const
381 {
382 QColorSpace cs;
383 if (pDecoder == nullptr) {
384 return cs;
385 }
386 quint32 size;
387 if (!pDecoder->GetColorContext(pDecoder, nullptr, &size) && size) {
388 QByteArray ba(size, 0);
389 if (!pDecoder->GetColorContext(pDecoder, reinterpret_cast<quint8 *>(ba.data()), &size)) {
390 cs = QColorSpace::fromIccProfile(ba);
391 }
392 }
393 return cs;
394 }
395
396 /*!
397 * \brief xmpData
398 * \return The XMP data if exists.
399 */
400 QString xmpData() const
401 {
402 QString xmp;
403 if (pDecoder == nullptr) {
404 return xmp;
405 }
406#ifdef JXR_ENABLE_ADVANCED_METADATA
407 quint32 size;
408 if (!PKImageDecode_GetXMPMetadata_WMP(pDecoder, nullptr, &size) && size > 0 && size < JXR_MAX_METADATA_SIZE) {
409 QByteArray ba(size, 0);
410 if (!PKImageDecode_GetXMPMetadata_WMP(pDecoder, reinterpret_cast<quint8 *>(ba.data()), &size)) {
411 xmp = QString::fromUtf8(ba);
412 }
413 }
414#endif
415 return xmp;
416 }
417
418 /*!
419 * \brief exifData
420 * \return The EXIF data.
421 */
422 MicroExif exifData() const
423 {
424 return m_exif;
425 }
426
427 /*!
428 * \brief setMetadata
429 * Set the metadata into \a image
430 * \param image Image on which to write metadata
431 */
432 void setMetadata(QImage& image)
433 {
434 auto xmp = xmpData();
435 if (!xmp.isEmpty()) {
436 image.setText(QStringLiteral(META_KEY_XMP_ADOBE), xmp);
437 }
438 auto descr = description();
439 if (!descr.isEmpty()) {
440 image.setText(QStringLiteral(META_KEY_DESCRIPTION), descr);
441 }
442 auto softw = software();
443 if (!softw.isEmpty()) {
444 image.setText(QStringLiteral(META_KEY_SOFTWARE), softw);
445 }
446 auto make = cameraMake();
447 if (!make.isEmpty()) {
448 image.setText(QStringLiteral(META_KEY_MANUFACTURER), make);
449 }
450 auto model = cameraModel();
451 if (!model.isEmpty()) {
452 image.setText(QStringLiteral(META_KEY_MODEL), model);
453 }
454 auto author = artist();
455 if (!author.isEmpty()) {
456 image.setText(QStringLiteral(META_KEY_AUTHOR), author);
457 }
458 auto copy = copyright();
459 if (!copy.isEmpty()) {
460 image.setText(QStringLiteral(META_KEY_COPYRIGHT), copy);
461 }
462 auto capt = caption();
463 if (!capt.isEmpty()) {
464 image.setText(QStringLiteral(META_KEY_TITLE), capt);
465 }
466 auto host = hostComputer();
467 if (!host.isEmpty()) {
468 image.setText(QStringLiteral(META_KEY_HOSTCOMPUTER), capt);
469 }
470 auto docn = documentName();
471 if (!docn.isEmpty()) {
472 image.setText(QStringLiteral(META_KEY_DOCUMENTNAME), docn);
473 }
474 auto exif = exifData();
475 if (!exif.isEmpty()) {
476 exif.toImageMetadata(image);
477 }
478 }
479
480#define META_TEXT(name, key) \
481 QString name() const \
482 { \
483 readTextMeta(); \
484 return m_txtMeta.value(QStringLiteral(key)); \
485 }
486
487 META_TEXT(description, META_KEY_DESCRIPTION)
488 META_TEXT(cameraMake, META_KEY_MANUFACTURER)
489 META_TEXT(cameraModel, META_KEY_MODEL)
490 META_TEXT(software, META_KEY_SOFTWARE)
491 META_TEXT(artist, META_KEY_AUTHOR)
492 META_TEXT(copyright, META_KEY_COPYRIGHT)
493 META_TEXT(caption, META_KEY_TITLE)
494 META_TEXT(documentName, META_KEY_DOCUMENTNAME)
495 META_TEXT(hostComputer, META_KEY_HOSTCOMPUTER)
496
497#undef META_TEXT
498
499 /* *** WRITE *** */
500
501 /*!
502 * \brief initForWriting
503 * Initialize the stream for writing.
504 * \return True on success, otherwise false.
505 */
506 bool initForWriting()
507 {
508 // I have to use QFile because, on Windows, the QTemporary file is locked (even if I close it)
509 auto fileName = QStringLiteral("%1.jxr").arg(m_tempDir->filePath(QUuid::createUuid().toString(QUuid::WithoutBraces).left(8)));
510 QSharedPointer<QFile> file(new QFile(fileName));
511 m_jxrFile = file;
512 return initEncoder();
513 }
514
515 /*!
516 * \brief finalizeWriting
517 * \param device
518 * Finalize the writing operation. Must be called as last peration.
519 * \return True on success, otherwise false.
520 */
521 bool finalizeWriting(QIODevice *device)
522 {
523 if (device == nullptr || pEncoder == nullptr) {
524 return false;
525 }
526 if (auto err = PKImageEncode_Release(&pEncoder)) {
527 qCWarning(LOG_JXRPLUGIN) << "JXRHandlerPrivate::finalizeWriting() error while releasing the encoder:" << err;
528 return false;
529 }
530
531 if (!deviceCopy(device, m_jxrFile.data())) {
532 qCWarning(LOG_JXRPLUGIN) << "JXRHandlerPrivate::finalizeWriting() error while writing in the target device";
533 return false;
534 }
535 return true;
536 }
537
538 /*!
539 * \brief imageToSave
540 * If necessary it converts the image to be saved into the appropriate format otherwise it does nothing.
541 * \param source The image to save.
542 * \return The image to use for save operation.
543 */
544 QImage imageToSave(const QImage &source) const
545 {
546 // IMPORTANT: these values must be in exactMatchingFormat()
547 // clang-format off
548 auto valid = QSet<QImage::Format>()
549#if QT_VERSION >= QT_VERSION_CHECK(6, 8, 0)
550 << QImage::Format_CMYK8888
551#endif
552#ifndef JXR_DENY_FLOAT_IMAGE
553 << QImage::Format_RGBA16FPx4
554 << QImage::Format_RGBX16FPx4
555 << QImage::Format_RGBA32FPx4
556 << QImage::Format_RGBA32FPx4_Premultiplied
557 << QImage::Format_RGBX32FPx4
558#endif // JXR_DENY_FLOAT_IMAGE
559 << QImage::Format_RGBA64
560 << QImage::Format_RGBA64_Premultiplied
561 << QImage::Format_RGBA8888
562 << QImage::Format_RGBA8888_Premultiplied
563 << QImage::Format_RGBX8888
564 << QImage::Format_BGR888
565 << QImage::Format_RGB888
566 << QImage::Format_RGB555
567 << QImage::Format_RGB16
568 << QImage::Format_Grayscale16
569 << QImage::Format_Grayscale8
570 << QImage::Format_Mono;
571 // clang-format on
572
573 // To avoid complex code, I will save only integer formats.
574 auto qi = source;
575 if (qi.format() == QImage::Format_MonoLSB) {
576 qi = qi.convertToFormat(QImage::Format_Mono);
577 }
578 if (qi.format() == QImage::Format_Indexed8) {
579 if (qi.allGray())
580 qi = qi.convertToFormat(QImage::Format_Grayscale8);
581 else
582 qi = qi.convertToFormat(QImage::Format_RGBA8888);
583 }
584#ifndef JXR_DENY_FLOAT_IMAGE
585 if (qi.format() == QImage::Format_RGBA16FPx4_Premultiplied) {
586 qi = qi.convertToFormat(QImage::Format_RGBA16FPx4);
587 }
588#endif // JXR_DENY_FLOAT_IMAGE
589
590 // generic
591 if (!valid.contains(qi.format())) {
592 auto alpha = qi.hasAlphaChannel();
593 auto depth = qi.depth();
594 if (depth >= 12 && depth <= 24 && !alpha) {
595 qi = qi.convertToFormat(QImage::Format_RGB888);
596 } else if (depth >= 48) {
597 // JXR don't have RGBX64 format so I have two possibilities:
598 // - convert to 32 bpp (convertToFormat(alpha ? QImage::Format_RGBA64 : QImage::Format_RGB888))
599 // - convert to 64 bpp with fake alpha (preferred)
600 qi = qi.convertToFormat(QImage::Format_RGBA64);
601 } else {
602 qi = qi.convertToFormat(alpha ? QImage::Format_RGBA8888 : QImage::Format_RGB888);
603 }
604#ifndef JXR_DENY_FLOAT_IMAGE
605 // clang-format off
606 } else if (qi.format() == QImage::Format_RGBA16FPx4 ||
607 qi.format() == QImage::Format_RGBX16FPx4 ||
608 qi.format() == QImage::Format_RGBA32FPx4 ||
609 qi.format() == QImage::Format_RGBA32FPx4_Premultiplied ||
610 qi.format() == QImage::Format_RGBX32FPx4) {
611 // clang-format on
612 auto cs = qi.colorSpace();
613 if (cs.isValid() && cs.transferFunction() != QColorSpace::TransferFunction::Linear) {
614 qi = qi.convertedToColorSpace(QColorSpace(QColorSpace::SRgbLinear));
615 }
616 }
617#endif // JXR_DENY_FLOAT_IMAGE
618
619 return qi;
620 }
621
622 /*!
623 * \brief initCodecParameters
624 * Initialize the JXR codec parameters.
625 * \param wmiSCP
626 * \param image The image to save.
627 * \return True on success, otherwise false.
628 */
629 bool initCodecParameters(CWMIStrCodecParam *wmiSCP, const QImage &image)
630 {
631 if (wmiSCP == nullptr || image.isNull()) {
632 return false;
633 }
634 memset(wmiSCP, 0, sizeof(CWMIStrCodecParam));
635
636 auto fmt = image.format();
637
638 wmiSCP->bVerbose = FALSE;
639 if (fmt == QImage::Format_Grayscale8 || fmt == QImage::Format_Grayscale16 || fmt == QImage::Format_Mono)
640 wmiSCP->cfColorFormat = Y_ONLY;
641#if QT_VERSION >= QT_VERSION_CHECK(6, 8, 0)
642 else if (fmt == QImage::Format_CMYK8888)
643 wmiSCP->cfColorFormat = CMYK;
644#endif
645 else
646 wmiSCP->cfColorFormat = YUV_444;
647 wmiSCP->bdBitDepth = BD_LONG;
648 wmiSCP->bfBitstreamFormat = FREQUENCY;
649 wmiSCP->bProgressiveMode = TRUE;
650 wmiSCP->olOverlap = OL_ONE;
651 wmiSCP->cNumOfSliceMinus1H = wmiSCP->cNumOfSliceMinus1V = 0;
652 wmiSCP->sbSubband = SB_ALL;
653 wmiSCP->uAlphaMode = image.hasAlphaChannel() ? 2 : 0;
654 if (quality() > -1) {
655 wmiSCP->uiDefaultQPIndex = qBound(0, 100 - quality(), 100);
656 }
657 return true;
658 }
659
660 /*!
661 * \brief updateTextMetadata
662 * Read the metadata from the image and set it in the encoder.
663 * \param image The image to save.
664 */
665 void updateTextMetadata(const QImage &image)
666 {
667 if (pEncoder == nullptr) {
668 return;
669 }
670
671 DESCRIPTIVEMETADATA meta;
672 memset(&meta, 0, sizeof(meta));
673
674#define META_CTEXT(name, field) \
675 auto field = image.text(QStringLiteral(name)).toUtf8(); \
676 if (!field.isEmpty()) { \
677 meta.field.vt = DPKVT_LPSTR; \
678 meta.field.VT.pszVal = field.data(); \
679 }
680#define META_WTEXT(name, field) \
681 auto field = image.text(QStringLiteral(name)); \
682 if (!field.isEmpty()) { \
683 meta.field.vt = DPKVT_LPWSTR; \
684 meta.field.VT.pwszVal = const_cast<quint16 *>(field.utf16()); \
685 }
686
687 META_CTEXT(META_KEY_DESCRIPTION, pvarImageDescription)
688 META_CTEXT(META_KEY_MANUFACTURER, pvarCameraMake)
689 META_CTEXT(META_KEY_MODEL, pvarCameraModel)
690 META_CTEXT(META_KEY_AUTHOR, pvarArtist)
691 META_CTEXT(META_KEY_COPYRIGHT, pvarCopyright)
692 META_CTEXT(META_KEY_DOCUMENTNAME, pvarDocumentName)
693 META_CTEXT(META_KEY_HOSTCOMPUTER, pvarHostComputer)
694 META_WTEXT(META_KEY_TITLE, pvarCaption)
695
696#undef META_CTEXT
697#undef META_WTEXT
698
699 // Software must be updated
700 auto software = QStringLiteral("%1 %2").arg(QCoreApplication::applicationName(), QCoreApplication::applicationVersion()).toUtf8();
701 if (!software.isEmpty()) {
702 meta.pvarSoftware.vt = DPKVT_LPSTR;
703 meta.pvarSoftware.VT.pszVal = software.data();
704 }
705
706 // Date and Time (TIFF format)
707 auto cDate = QDateTime::fromString(image.text(QStringLiteral(META_KEY_MODIFICATIONDATE)), Qt::ISODate);
708 auto sDate = cDate.isValid() ? cDate.toString(QStringLiteral("yyyy:MM:dd HH:mm:ss")).toLatin1() : QByteArray();
709 if (!sDate.isEmpty()) {
710 meta.pvarDateTime.vt = DPKVT_LPSTR;
711 meta.pvarDateTime.VT.pszVal = sDate.data();
712 }
713
714 auto xmp = image.text(QStringLiteral(META_KEY_XMP_ADOBE)).toUtf8();
715 if (!xmp.isNull()) {
716 if (auto err = PKImageEncode_SetXMPMetadata_WMP(pEncoder, reinterpret_cast<const quint8 *>(xmp.constData()), xmp.size())) {
717 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::write() error while setting XMP data:" << err;
718 }
719 }
720
721 auto exif = MicroExif::fromImage(image);
722 if (!exif.isEmpty()) {
723 auto exifIfd = exif.exifIfdByteArray(QDataStream::LittleEndian);
724 if (auto err = PKImageEncode_SetEXIFMetadata_WMP(pEncoder, reinterpret_cast<const quint8 *>(exifIfd.constData()), exifIfd.size())) {
725 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::write() error while setting EXIF data:" << err;
726 }
727 auto gpsIfd = exif.gpsIfdByteArray(QDataStream::LittleEndian);
728 if (auto err = PKImageEncode_SetGPSInfoMetadata_WMP(pEncoder, reinterpret_cast<const quint8 *>(gpsIfd.constData()), gpsIfd.size())) {
729 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::write() error while setting GPS data:" << err;
730 }
731 }
732
733 if (auto err = pEncoder->SetDescriptiveMetadata(pEncoder, &meta)) {
734 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::write() error while setting descriptive data:" << err;
735 }
736 }
737
738 /*!
739 * \brief exactFormat
740 * JXR and Qt use support image formats, some of which are identical. Use this function to convert a JXR format to Qt format.
741 * \param jxrFormat Format to be converted.
742 * \return A valid Qt format or QImage::Format_Invalid if there is no match
743 */
744 static QImage::Format exactFormat(const PKPixelFormatGUID &jxrFormat)
745 {
746 auto l = exactMatchingFormats();
747 for (auto &&p : l) {
748 if (IsEqualGUID(p.second, jxrFormat))
749 return p.first;
750 }
751 return QImage::Format_Invalid;
752 }
753
754 /*!
755 * \brief exactFormat
756 * JXR and Qt use support image formats, some of which are identical. Use this function to convert a JXR format to Qt format.
757 * \param qtFormat Format to be converted.
758 * \return A valid JXR format or GUID_PKPixelFormatUndefined if there is no match
759 */
760 static PKPixelFormatGUID exactFormat(const QImage::Format &qtFormat)
761 {
762 auto l = exactMatchingFormats();
763 for (auto &&p : l) {
764 if (p.first == qtFormat)
765 return p.second;
766 }
767 return GUID_PKPixelFormatUndefined;
768 }
769
770private:
771 static QList<std::pair<QImage::Format, PKPixelFormatGUID>> exactMatchingFormats()
772 {
773 // clang-format off
774 auto list = QList<std::pair<QImage::Format, PKPixelFormatGUID>>()
775#ifndef JXR_DENY_FLOAT_IMAGE
776 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_RGBA16FPx4, GUID_PKPixelFormat64bppRGBAHalf)
777 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_RGBX16FPx4, GUID_PKPixelFormat64bppRGBHalf)
778 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_RGBA32FPx4, GUID_PKPixelFormat128bppRGBAFloat)
779 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_RGBA32FPx4_Premultiplied, GUID_PKPixelFormat128bppPRGBAFloat)
780 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_RGBX32FPx4, GUID_PKPixelFormat128bppRGBFloat)
781#endif // JXR_DENY_FLOAT_IMAGE
782#if QT_VERSION >= QT_VERSION_CHECK(6, 8, 0)
783 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_CMYK8888, GUID_PKPixelFormat32bppCMYK)
784 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_CMYK8888, GUID_PKPixelFormat32bppCMYKDIRECT)
785#endif
786 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_Mono, GUID_PKPixelFormatBlackWhite)
787 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_Grayscale8, GUID_PKPixelFormat8bppGray)
788 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_Grayscale16, GUID_PKPixelFormat16bppGray)
789 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_RGB555, GUID_PKPixelFormat16bppRGB555)
790 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_RGB16, GUID_PKPixelFormat16bppRGB565)
791 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_BGR888, GUID_PKPixelFormat24bppBGR)
792 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_RGB888, GUID_PKPixelFormat24bppRGB)
793 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_RGBX8888, GUID_PKPixelFormat32bppRGB)
794 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_RGBA8888, GUID_PKPixelFormat32bppRGBA)
795 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_RGBA8888_Premultiplied, GUID_PKPixelFormat32bppPRGBA)
796 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_RGBA64, GUID_PKPixelFormat64bppRGBA)
797 << std::pair<QImage::Format, PKPixelFormatGUID>(QImage::Format_RGBA64_Premultiplied, GUID_PKPixelFormat64bppPRGBA);
798 // clang-format on
799 return list;
800 }
801
802 bool deviceCopy(QIODevice *target, QIODevice *source)
803 {
804 if (target == nullptr || source == nullptr) {
805 return false;
806 }
807 auto isTargetOpen = target->isOpen();
808 if (!isTargetOpen && !target->open(QIODevice::WriteOnly)) {
809 return false;
810 }
811 auto isSourceOpen = source->isOpen();
812 if (!isSourceOpen && !source->open(QIODevice::ReadOnly)) {
813 return false;
814 }
815 QByteArray buff(32768 * 4, char());
816 for (;;) {
817 auto read = source->read(buff.data(), buff.size());
818 if (read == 0) {
819 break;
820 }
821 if (read < 0) {
822 return false;
823 }
824 if (target->write(buff.data(), read) != read) {
825 return false;
826 }
827 }
828 if (!isSourceOpen) {
829 source->close();
830 }
831 if (!isTargetOpen) {
832 target->close();
833 }
834 return true;
835 }
836
837 bool readDevice(QIODevice *device)
838 {
839 if (device == nullptr) {
840 return false;
841 }
842 if (!m_jxrFile.isNull()) {
843 return true;
844 }
845 // I have to use QFile because, on Windows, the QTemporary file is locked (even if I close it)
846 auto fileName = QStringLiteral("%1.jxr").arg(m_tempDir->filePath(QUuid::createUuid().toString(QUuid::WithoutBraces).left(8)));
847 QSharedPointer<QFile> file(new QFile(fileName));
848 if (!file->open(QFile::WriteOnly)) {
849 return false;
850 }
851 if (!deviceCopy(file.data(), device)) {
852 qCWarning(LOG_JXRPLUGIN) << "JXRHandlerPrivate::readDevice() error while writing in the target device";
853 return false;
854 }
855 file->close();
856 m_exif = MicroExif::fromDevice(file.data());
857 m_jxrFile = file;
858 return true;
859 }
860
861 bool initDecoder()
862 {
863 if (pDecoder) {
864 return true;
865 }
866 if (pCodecFactory == nullptr) {
867 return false;
868 }
869 if (auto err = pCodecFactory->CreateDecoderFromFile(qUtf8Printable(fileName()), &pDecoder)) {
870 qCWarning(LOG_JXRPLUGIN) << "JXRHandlerPrivate::initDecoder() unable to create decoder:" << err;
871 return false;
872 }
873 setTransformation(JXRHandlerPrivate::orientationToTransformation(pDecoder->WMP.wmiI.oOrientation));
874 pDecoder->WMP.wmiI.oOrientation = O_NONE; // disable the library rotation application
875 return true;
876 }
877
878 bool initEncoder()
879 {
880 if (pDecoder) {
881 return true;
882 }
883 if (pCodecFactory == nullptr) {
884 return false;
885 }
886 if (auto err = pCodecFactory->CreateCodec(&IID_PKImageWmpEncode, (void **)&pEncoder)) {
887 qCWarning(LOG_JXRPLUGIN) << "JXRHandlerPrivate::initEncoder() unable to create encoder:" << err;
888 return false;
889 }
890 pEncoder->WMP.oOrientation = JXRHandlerPrivate::transformationToOrientation(transformation());
891 return true;
892 }
893
894 bool readTextMeta() const {
895 if (pDecoder == nullptr) {
896 return false;
897 }
898 if (!m_txtMeta.isEmpty()) {
899 return true;
900 }
901
902 DESCRIPTIVEMETADATA meta;
903 if (pDecoder->GetDescriptiveMetadata(pDecoder, &meta)) {
904 return false;
905 }
906
907#define META_TEXT(name, field) \
908 if (meta.field.vt == DPKVT_LPSTR) \
909 m_txtMeta.insert(QStringLiteral(name), QString::fromUtf8(meta.field.VT.pszVal)); \
910 else if (meta.field.vt == DPKVT_LPWSTR) \
911 m_txtMeta.insert(QStringLiteral(name), QString::fromUtf16(reinterpret_cast<char16_t *>(meta.field.VT.pwszVal)));
912
913 META_TEXT(META_KEY_DESCRIPTION, pvarImageDescription)
914 META_TEXT(META_KEY_MANUFACTURER, pvarCameraMake)
915 META_TEXT(META_KEY_MODEL, pvarCameraModel)
916 META_TEXT(META_KEY_SOFTWARE, pvarSoftware)
917 META_TEXT(META_KEY_AUTHOR, pvarArtist)
918 META_TEXT(META_KEY_COPYRIGHT, pvarCopyright)
919 META_TEXT(META_KEY_TITLE, pvarCaption)
920 META_TEXT(META_KEY_DOCUMENTNAME, pvarDocumentName)
921 META_TEXT(META_KEY_HOSTCOMPUTER, pvarHostComputer)
922
923#undef META_TEXT
924
925 return true;
926 }
927};
928
929bool JXRHandler::read(QImage *outImage)
930{
931 if (!d->initForReading(device())) {
932 return false;
933 }
934
935 PKPixelFormatGUID convFmt;
936 auto imageFmt = d->imageFormat(&convFmt);
937 auto img = imageAlloc(d->imageSize(), imageFmt);
938 if (img.isNull()) {
939 return false;
940 }
941
942 // resolution
943 float hres, vres;
944 if (auto err = d->pDecoder->GetResolution(d->pDecoder, &hres, &vres)) {
945 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() error while reading resolution:" << err;
946 } else {
947 img.setDotsPerMeterX(qRound(hres * 1000 / 25.4));
948 img.setDotsPerMeterY(qRound(vres * 1000 / 25.4));
949 }
950
951 // alpha copy mode
952 if (img.hasAlphaChannel()) {
953 d->pDecoder->WMP.wmiSCP.uAlphaMode = 2; // or 1 (?)
954 }
955
956 PKRect rect = {0, 0, img.width(), img.height()};
957 if (IsEqualGUID(convFmt, GUID_PKPixelFormatUndefined)) { // direct storing
958 if (auto err = d->pDecoder->Copy(d->pDecoder, &rect, img.bits(), img.bytesPerLine())) {
959 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() unable to copy data:" << err;
960 return false;
961 }
962 } else { // conversion to a known format
963 PKFormatConverter *pConverter = nullptr;
964 if (auto err = d->pCodecFactory->CreateFormatConverter(&pConverter)) {
965 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() unable to create the converter:" << err;
966 return false;
967 }
968 if (auto err = pConverter->Initialize(pConverter, d->pDecoder, nullptr, convFmt)) {
969 PKFormatConverter_Release(&pConverter);
970 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() unable to initialize the converter:" << err;
971 return false;
972 }
973 if (d->pDecoder->WMP.wmiI.cBitsPerUnit == size_t(img.depth())) { // in place conversion
974 if (auto err = pConverter->Copy(pConverter, &rect, img.bits(), img.bytesPerLine())) {
975 PKFormatConverter_Release(&pConverter);
976 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() unable to copy converted data:" << err;
977 return false;
978 }
979 } else { // additional buffer needed
980 qint64 convStrideSize = (img.width() * d->pDecoder->WMP.wmiI.cBitsPerUnit + 7) / 8;
981 qint64 buffSize = convStrideSize * img.height();
982 qint64 limit = QImageReader::allocationLimit();
983 if (limit && (buffSize + img.sizeInBytes()) > limit * 1024 * 1024) {
984 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() unable to covert due to allocation limit set:" << limit << "MiB";
985 return false;
986 }
987 QVector<quint8> ba(buffSize);
988 if (auto err = pConverter->Copy(pConverter, &rect, ba.data(), convStrideSize)) {
989 PKFormatConverter_Release(&pConverter);
990 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() unable to copy converted data:" << err;
991 return false;
992 }
993 for (qint32 y = 0, h = img.height(); y < h; ++y) {
994 std::memcpy(img.scanLine(y), ba.data() + convStrideSize * y, (std::min)(convStrideSize, img.bytesPerLine()));
995 }
996 }
997 PKFormatConverter_Release(&pConverter);
998 }
999
1000 // Metadata (e.g.: icc profile, description, etc...)
1001 img.setColorSpace(d->colorSpace());
1002 d->setMetadata(img);
1003
1004#ifndef JXR_DENY_FLOAT_IMAGE
1005 // JXR float are stored in scRGB.
1006 if (img.format() == QImage::Format_RGBX16FPx4 || img.format() == QImage::Format_RGBA16FPx4 || img.format() == QImage::Format_RGBA16FPx4_Premultiplied ||
1007 img.format() == QImage::Format_RGBX32FPx4 || img.format() == QImage::Format_RGBA32FPx4 || img.format() == QImage::Format_RGBA32FPx4_Premultiplied) {
1008 auto hasAlpha = img.hasAlphaChannel();
1009 for (qint32 y = 0, h = img.height(); y < h; ++y) {
1010 if (img.depth() == 64) {
1011 auto line = reinterpret_cast<qfloat16 *>(img.scanLine(y));
1012 for (int x = 0, w = img.width() * 4; x < w; x += 4)
1013 line[x + 3] = hasAlpha ? std::clamp(line[x + 3], qfloat16(0), qfloat16(1)) : qfloat16(1);
1014 } else {
1015 auto line = reinterpret_cast<float *>(img.scanLine(y));
1016 for (int x = 0, w = img.width() * 4; x < w; x += 4)
1017 line[x + 3] = hasAlpha ? std::clamp(line[x + 3], float(0), float(1)) : float(1);
1018 }
1019 }
1020 if (!img.colorSpace().isValid()) {
1021 img.setColorSpace(QColorSpace(QColorSpace::SRgbLinear));
1022 }
1023 }
1024#endif
1025
1026 *outImage = img;
1027 return true;
1028}
1029
1030bool JXRHandler::write(const QImage &image)
1031{
1032 // JXR is stored in a TIFF V6 container that is limited to 4GiB. The size
1033 // is limited to 4GB to leave room for IFDs, Metadata, etc...
1034 if (qint64(image.sizeInBytes()) > 4000000000ll) {
1035 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::write() image too large: the image cannot exceed 4GB.";
1036 return false;
1037 }
1038
1039 if (!d->initForWriting()) {
1040 return false;
1041 }
1042 struct WMPStream *pEncodeStream = nullptr;
1043 if (auto err = d->pFactory->CreateStreamFromFilename(&pEncodeStream, qUtf8Printable(d->fileName()), "wb")) {
1044 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::write() unable to create stream:" << err;
1045 return false;
1046 }
1047
1048 // convert the image to a supported format
1049 auto qi = d->imageToSave(image);
1050 auto jxlfmt = d->exactFormat(qi.format());
1051 if (IsEqualGUID(jxlfmt, GUID_PKPixelFormatUndefined)) {
1052 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::write() something wrong when calculating the target format for" << qi.format();
1053 return false;
1054 }
1055#ifndef JXR_DISABLE_BGRA_HACK
1056 if (IsEqualGUID(jxlfmt, GUID_PKPixelFormat32bppRGB)) {
1057 jxlfmt = GUID_PKPixelFormat32bppBGR;
1058 qi.rgbSwap();
1059 }
1060 if (IsEqualGUID(jxlfmt, GUID_PKPixelFormat32bppRGBA)) {
1061 jxlfmt = GUID_PKPixelFormat32bppBGRA;
1062 qi.rgbSwap();
1063 }
1064 if (IsEqualGUID(jxlfmt, GUID_PKPixelFormat32bppPRGBA)) {
1065 jxlfmt = GUID_PKPixelFormat32bppPBGRA;
1066 qi.rgbSwap();
1067 }
1068#endif
1069
1070 // initialize the codec parameters
1071 CWMIStrCodecParam wmiSCP;
1072 if (!d->initCodecParameters(&wmiSCP, qi)) {
1073 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::write() something wrong when calculating encoder parameters for" << qi.format();
1074 return false;
1075 }
1076 if (auto err = d->pEncoder->Initialize(d->pEncoder, pEncodeStream, &wmiSCP, sizeof(wmiSCP))) {
1077 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::write() error while initializing the encoder:" << err;
1078 return false;
1079 }
1080
1081 // setting mandatory image info
1082 if (auto err = d->pEncoder->SetPixelFormat(d->pEncoder, jxlfmt)) {
1083 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::write() error while setting the image format:" << err;
1084 return false;
1085 }
1086 if (auto err = d->pEncoder->SetSize(d->pEncoder, qi.width(), qi.height())) {
1087 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::write() error while setting the image size:" << err;
1088 return false;
1089 }
1090 if (auto err = d->pEncoder->SetResolution(d->pEncoder, qi.dotsPerMeterX() * 25.4 / 1000, qi.dotsPerMeterY() * 25.4 / 1000)) {
1091 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::write() error while setting the image resolution:" << err;
1092 return false;
1093 }
1094
1095 // setting metadata (a failure of setting metadata doesn't stop the encoding)
1096 auto cs = qi.colorSpace().iccProfile();
1097 if (!cs.isEmpty()) {
1098 if (auto err = d->pEncoder->SetColorContext(d->pEncoder, reinterpret_cast<quint8 *>(cs.data()), cs.size())) {
1099 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::write() error while setting ICC profile:" << err;
1100 }
1101 }
1102 d->updateTextMetadata(image);
1103
1104 // writing the image
1105 if (auto err = d->pEncoder->WritePixels(d->pEncoder, qi.height(), qi.bits(), qi.bytesPerLine())) {
1106 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::write() error while encoding the image:" << err;
1107 return false;
1108 }
1109 if (!d->finalizeWriting(device())) {
1110 return false;
1111 }
1112 return true;
1113}
1114
1115void JXRHandler::setOption(ImageOption option, const QVariant &value)
1116{
1117 if (option == QImageIOHandler::Quality) {
1118 auto ok = false;
1119 auto q = value.toInt(&ok);
1120 if (ok) {
1121 d->setQuality(q);
1122 }
1123 }
1124
1125 if (option == QImageIOHandler::ImageTransformation) {
1126 auto ok = false;
1127 auto t = value.toInt(&ok);
1128 if (ok) {
1129 d->setTransformation(QImageIOHandler::Transformation(t));
1130 }
1131 }
1132}
1133
1134bool JXRHandler::supportsOption(ImageOption option) const
1135{
1136 if (option == QImageIOHandler::Size) {
1137 return true;
1138 }
1139 if (option == QImageIOHandler::ImageFormat) {
1140 return true;
1141 }
1142 if (option == QImageIOHandler::Quality) {
1143 return true;
1144 }
1145 if (option == QImageIOHandler::ImageTransformation) {
1146 return true;
1147 }
1148 return false;
1149}
1150
1151QVariant JXRHandler::option(ImageOption option) const
1152{
1153 QVariant v;
1154
1155 if (option == QImageIOHandler::Size) {
1156 if (d->initForReading(device())) {
1157 auto size = d->imageSize();
1158 if (size.isValid()) {
1159 v = QVariant::fromValue(size);
1160 }
1161 }
1162 }
1163
1164 if (option == QImageIOHandler::ImageFormat) {
1165 if (d->initForReading(device())) {
1166 v = QVariant::fromValue(d->imageFormat());
1167 }
1168 }
1169
1170 if (option == QImageIOHandler::Quality) {
1171 v = d->quality();
1172 }
1173
1174 if (option == QImageIOHandler::ImageTransformation) {
1175 // ignore result: I might want to read the value set in writing
1176 d->initForReading(device());
1177 v = int(d->transformation());
1178 }
1179
1180 return v;
1181}
1182
1183JXRHandler::JXRHandler()
1184 : d(new JXRHandlerPrivate)
1185{
1186}
1187
1188bool JXRHandler::canRead() const
1189{
1190 if (canRead(device())) {
1191 setFormat("jxr");
1192 return true;
1193 }
1194 return false;
1195}
1196
1197bool JXRHandler::canRead(QIODevice *device)
1198{
1199 if (!device) {
1200 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::canRead() called with no device";
1201 return false;
1202 }
1203
1204 // JPEG XR image data is stored in TIFF-like container format (II and 0xBC01 version)
1205 if (device->peek(4) == QByteArray::fromRawData("\x49\x49\xbc\x01", 4)) {
1206 return true;
1207 }
1208
1209 return false;
1210}
1211
1212QImageIOPlugin::Capabilities JXRPlugin::capabilities(QIODevice *device, const QByteArray &format) const
1213{
1214 if (format == "jxr") {
1215 return Capabilities(CanRead | CanWrite);
1216 }
1217 if (format == "wdp" || format == "hdp") {
1218 return Capabilities(CanRead);
1219 }
1220 if (!format.isEmpty()) {
1221 return {};
1222 }
1223 if (!device->isOpen()) {
1224 return {};
1225 }
1226
1227 Capabilities cap;
1228 if (device->isReadable() && JXRHandler::canRead(device)) {
1229 cap |= CanRead;
1230 }
1231 if (device->isWritable()) {
1232 cap |= CanWrite;
1233 }
1234 return cap;
1235}
1236
1237QImageIOHandler *JXRPlugin::create(QIODevice *device, const QByteArray &format) const
1238{
1239 QImageIOHandler *handler = new JXRHandler;
1240 handler->setDevice(device);
1241 handler->setFormat(format);
1242 return handler;
1243}
1244
1245#include "moc_jxr_p.cpp"
KGameAudioScene::Capabilities
QFlags< Capability > Capabilities
KItinerary::SSBTicketReader::read
QVariant read(const QByteArray &data, int versionOverride=0)
KRecentDirs::list
KIOCORE_EXPORT QStringList list(const QString &fileClass)
KStandardAction::copy
QAction * copy(const QObject *recvr, const char *slot, QObject *parent)
QByteArray::fromRawData
QByteArray fromRawData(const char *data, qsizetype size)
QByteArray::isEmpty
bool isEmpty() const const
QColorSpace::fromIccProfile
QColorSpace fromIccProfile(const QByteArray &iccProfile)
QColorSpace::iccProfile
QByteArray iccProfile() const const
QColorSpace::isValid
bool isValid() const const
QColorSpace::transferFunction
TransferFunction transferFunction() const const
QDateTime::fromString
QDateTime fromString(QStringView string, QStringView format, QCalendar cal)
QImage::format
Format format() const const
QImage::hasAlphaChannel
bool hasAlphaChannel() const const
QImage::isNull
bool isNull() const const
QImage::setText
void setText(const QString &key, const QString &text)
QImage::sizeInBytes
qsizetype sizeInBytes() const const
QImage::text
QString text(const QString &key) const const
QImageIOHandler::Transformations
typedef Transformations
QImageIOHandler::setDevice
void setDevice(QIODevice *device)
QImageIOHandler::setFormat
void setFormat(const QByteArray &format)
QImageIOPlugin::Capabilities
typedef Capabilities
QImageReader::allocationLimit
int allocationLimit()
QIODevice::close
virtual void close()
QIODevice::isOpen
bool isOpen() const const
QIODevice::isReadable
bool isReadable() const const
QIODevice::isWritable
bool isWritable() const const
QIODevice::open
virtual bool open(QIODeviceBase::OpenMode mode)
QIODevice::peek
QByteArray peek(qint64 maxSize)
QIODevice::read
QByteArray read(qint64 maxSize)
QIODevice::write
qint64 write(const QByteArray &data)
QString::constData
const QChar * constData() const const
QString::fromUtf8
QString fromUtf8(QByteArrayView str)
QString::isEmpty
bool isEmpty() const const
QString::isNull
bool isNull() const const
QString::left
QString left(qsizetype n) const const
QString::size
qsizetype size() const const
QString::toUtf8
QByteArray toUtf8() const const
QUuid::createUuid
QUuid createUuid()
QUuid::toString
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QVariant::fromValue
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QVariant::toInt
int toInt(bool *ok) const const
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