Update dependency version to 6.27.0

- Fixes a writing issue for float values ​​less than 1
- Fixes a missing definition of `EXIF_DATETIMEDIGITIZED` tag
- Adds support for some common camera shot metadata
- Adds missing metadata to writing tests

The following plugins automatically gain support for the new metadata: AVIF, IFF, HEIF, JXL, JXR, PSD and TGA (V2E).

The new metadata added with this patch is usually saved by smartphones (e.g. iPhone or Google Pixel).

.gitlab-ci.yml

@@ -16,7 +16,7 @@ include:
 
 image_json_validate:
   stage: validate
-  image: invent-registry.kde.org/sysadmin/ci-images/suse-qt69:latest
+  image: invent-registry.kde.org/sysadmin/ci-images/suse-qt611:latest
   tags:
     - Linux
   script:

.kde-ci.yml

@@ -7,5 +7,5 @@ Dependencies:
 Options:
  test-before-installing: True
  require-passing-tests-on: ['Linux', 'FreeBSD', 'Windows']
- cmake-options: "-DKIMAGEFORMATS_JXR=ON -DKIMAGEFORMATS_HEIF=ON -DKIMAGEFORMATS_HEIF_TEST:STRING=OFF -DKIMAGEFORMATS_HEJ2_TEST:STRING=OFF -DKIMAGEFORMATS_AVCI_TEST:STRING=OFF"
+ cmake-options: "-DKIMAGEFORMATS_WITH_KNOWN_CRASHES_JXR=ON -DKIMAGEFORMATS_HEIF=ON -DKIMAGEFORMATS_HEIF_TEST:STRING=OFF -DKIMAGEFORMATS_HEJ2_TEST:STRING=OFF -DKIMAGEFORMATS_AVCI_TEST:STRING=OFF"
  per-test-timeout: 90

CMakeLists.txt

@@ -1,11 +1,11 @@
 cmake_minimum_required(VERSION 3.29)
 
-set(KF_VERSION "6.25.0") # handled by release scripts
-set(KF_DEP_VERSION "6.25.0") # handled by release scripts
+set(KF_VERSION "6.27.0") # handled by release scripts
+set(KF_DEP_VERSION "6.27.0") # handled by release scripts
 project(KImageFormats VERSION ${KF_VERSION})
 
 include(FeatureSummary)
-find_package(ECM 6.25.0  NO_MODULE)
+find_package(ECM 6.27.0  NO_MODULE)
 set_package_properties(ECM PROPERTIES TYPE REQUIRED DESCRIPTION "Extra CMake Modules." URL "https://commits.kde.org/extra-cmake-modules")
 feature_summary(WHAT REQUIRED_PACKAGES_NOT_FOUND FATAL_ON_MISSING_REQUIRED_PACKAGES)
 
@@ -72,7 +72,7 @@ set_property(CACHE KIMAGEFORMATS_HEJ2_TEST PROPERTY STRINGS "OFF" "READ_ONLY" "A
 set(KIMAGEFORMATS_AVCI_TEST "ALL" CACHE STRING "Enable AVCI tests: OFF, ALL")
 set_property(CACHE KIMAGEFORMATS_AVCI_TEST PROPERTY STRINGS "OFF" "ALL")
 if(KIMAGEFORMATS_HEIF)
-    pkg_check_modules(LibHeif IMPORTED_TARGET libheif>=1.10.0)
+    pkg_check_modules(LibHeif IMPORTED_TARGET libheif>=1.17.0)
 endif()
 add_feature_info(LibHeif LibHeif_FOUND "required for the QImage plugin for HEIF/HEIC images")
 
@@ -97,16 +97,17 @@ set_package_properties(LibRaw PROPERTIES
     PURPOSE "Required for the QImage plugin for RAW images"
 )
 
-# JXR plugin disabled by default due to security issues
-option(KIMAGEFORMATS_JXR "Enable plugin for JPEG XR format" OFF)
-if(KIMAGEFORMATS_JXR)
+# JXR plugin disabled by default due to security issues.
+# You should not enable it unless you know what you are doing.
+option(KIMAGEFORMATS_WITH_KNOWN_CRASHES_JXR "Enable plugin for JPEG XR format" OFF)
+if(KIMAGEFORMATS_WITH_KNOWN_CRASHES_JXR)
     find_package(LibJXR)
 endif()
 add_feature_info(LibJXR LibJXR_FOUND "required for the QImage plugin for JPEG XR images")
 
 ecm_set_disabled_deprecation_versions(
     QT 6.11.0
-    KF 6.23.0
+    KF 6.26.0
 )
 
 add_subdirectory(src)

README.md

@@ -16,6 +16,7 @@ The following image formats have read-only support:
 
 - Animated Windows cursors (ani)
 - Camera RAW images (arw, cr2, cr3, dcs, dng, ...)
+- Farbfeld (ff)
 - Gimp (xcf)
 - Interchange Format Files (iff, ilbm, lbm)
 - Krita (kra)
@@ -155,8 +156,31 @@ About the image:
 - `Owner`: Name of the owner of the image.
 - `Software`: Name and version number of the software package(s) used to 
   create the image.
+- `Speed`: Floating-point number indicating the speed of GPS receiver 
+  movement in Km/h (e.g. 30.2).
 - `Title`: The title of the image.
 
+About the shot:
+- `DigitalZoomRatio`: Floating-point number indicating the digital zoom ratio
+  when the image was shot.
+- `ExposureMode`: Integer number indicating the exposure mode set when the 
+  image was shot as reported in the EXIF ​​specifications.
+- `ExposureProgram`: Integer number indicating the class of the program used 
+  by the camera to set exposure when the picture is taken as reported in the 
+  EXIF ​​specifications.
+- `ExposureTime`: Floating-point number indicating the exposure time, 
+  given in seconds (s).
+- `Flash`: Integer number indicating the status of flash when the image 
+  was shot as reported in the EXIF ​​specifications.
+- `FNumber`: Floating-point number indicating the F number.
+- `FocalLength`: Floating-point number indicating the actual focal length 
+  of the lens, in millimeters (mm).
+- `ISOSpeedRatings`: Integer number indicating the sensitivity of the camera 
+  or input device when the image was shot as reported in the EXIF 
+  ​​specifications.
+- `WhiteBalance`: Integer number indicating the white balance mode set when 
+  the image was shot as reported in the EXIF ​​specifications.
+
 About the camera:
 - `Manufacturer`: The manufacturer of the recording equipment.
 - `Model`: The model name or model number of the recording equipment.
@@ -220,21 +244,23 @@ RGB.
 Where possible, plugins support large images. By convention, many of the
 large image plugins are limited to a maximum of 300,000 x 300,000 pixels.
 Anyway, all plugins are also limited by the
-`QImageIOReader::allocationLimit()`.
+`QImageReader::allocationLimit()`.
 
 > [!note]
 > You can change the maximum limit of 300000 pixels by setting the constant
-> `KIF_LARGE_IMAGE_PIXEL_LIMIT` to the desired value in the cmake file.
+> `KIF_LARGE_IMAGE_PIXEL_LIMIT` to the desired value in the cmake file. It 
+> cannot be less than 65536.
 
 Below are the maximum sizes for each plugin ('n/a' means no limit, i.e. the 
 limit depends on the format encoding).
-- ANI: n/a
+- ANI: same size as Qt's ICO plugin
 - AVIF: 32,768 x 32,768 pixels, in any case no larger than 256 megapixels
 - DDS: 300,000 x 300,000 pixels
 - EXR: 300,000 x 300,000 pixels
 - EPS: same size as Qt's JPG plugin
+- FF: 300,000 x 300,000 pixels
 - HDR: 300,000 x 300,000 pixels
-- HEIF: n/a
+- HEIF: 65,535 x 65,535 pixels
 - IFF: 65,535 x 65,535 pixels
 - JP2: 300,000 x 300,000 pixels, in any case no larger than 2 gigapixels
 - JXL: 262,144 x 262,144 pixels, in any case no larger than 256 megapixels
@@ -274,8 +300,18 @@ consumption proportional to the size of the image to be saved.
 Normally this is not a source of problems because the affected plugins
 are limited to maximum images of 2GiB or less.
 
+Note that the value of `QImageReader::allocationLimit()` is only used when 
+allocating a new `QImage`. Since this parameter was created to limit damage 
+caused by corrupted files, any conversion of `QImage` (for example, with 
+`QImage::convertTo()`) is not subject to this limit.
+
 On plugins for formats that support large images, progressive conversion has
 been used or the maximum size of the image that can be saved has been limited.
+Plugins that use external libraries don't always allow progressive decoding 
+(e.g., the JPEG series). In these cases, the memory required for reading 
+may be much larger than the entire decoded image. When the external library has 
+a maximum memory limit function, the value of `QImageReader::allocationLimit()` 
+is set.
 
 ### Non-RGB formats
 
@@ -295,6 +331,11 @@ plugin:
 - `DDS_DISABLE_STRIDE_ALIGNMENT`: disable the stride alignment based on DDS 
   pitch: it is known that some writers do not set it correctly.
 
+When writing, it is possible to set which pixel format to use by setting the
+subtypes. The default is `Automatic` which chooses the most appropriate format
+based on the image. For a complete list of subformats, please use the
+appropriate [`QImageWriter`](https://doc.qt.io/qt-6/qimagewriter.html) APIs.
+
 ### The HEIF plugin
 
 **This plugin is disabled by default. It can be enabled by settings
@@ -305,6 +346,15 @@ distributions. In particular, it is necessary that the HEIF library has
 support for HEVC codec. If HEVC codec is not available the plugin
 will compile but will fail the tests.
 
+The following defines can be defined in cmake to modify the behavior of the 
+plugin:
+- `HEIF_DISABLE_QT_TRANSFORMATION`: HEIF transformations, in addition to 
+  rotations and reflections, also support image cropping. Consequently, the 
+  Qt plugin, must also honor the crop. This define is useful in case 
+  of problems: activating it disables Qt's support for transformations, 
+  delegating them to the HEIF libraries (which will therefore always apply 
+  them regardless of what is requested from Qt).
+
 **If you are interested in compiling the plugin without running the tests, 
 also use the following string options:**
 - `KIMAGEFORMATS_HEIF_TEST` to change the behaviour of HEIF tests. Set to 
@@ -324,6 +374,10 @@ plugin:
   attribute named "xmp". Note that Gimp reads the "xmp" attribute and Darktable 
   writes it as well.
 
+The plugin can set the following additional metadata:
+- `EXRLayerName`: A string containing the name of the EXR layer used to decode 
+   the image.
+
 ### The EPS plugin
 
 The plugin uses `Ghostscript` to convert the raster image. When reading it
@@ -362,6 +416,7 @@ The plugin supports the following image data:
 - FORM IMAG (Compact Disc-Interactive): It supports CLut4, CLut7, CLut8, Rle7
   and DYuv formats.
 - FORM RGFX: It supports uncompressed images only.
+- FORM DEEP: It supports uncompressed, RLE and TVDC images.
 - FOR4 CIMG (Maya Image File Format): It supports 24/48-bit RGB and 32/64-bit 
   RGBA images.
 
@@ -379,6 +434,11 @@ JP2 plugin has the following limitations due to the lack of support by OpenJPEG:
 - Image resolution is not supported.
 - To write ICC profiles you need OpenJPEG V2.5.4 or higher
 
+When writing, it is possible to set which format to use by setting the 
+following subtypes:
+- `JP2` (default): Save data using the JP2 container.
+- `J2K`: Save only the compressed codestream.
+
 ### The JXL plugin
 
 **The current version of the plugin limits the image size to 256 megapixels
@@ -394,7 +454,17 @@ plugin:
 ### The JXR plugin
 
 **This plugin is disabled by default. It can be enabled by settings
-`KIMAGEFORMATS_JXR` to `ON` in your cmake options.**
+`KIMAGEFORMATS_WITH_KNOWN_CRASHES_JXR` to `ON` in your cmake options.**
+
+> [!caution]
+> The plugin disabled by default due to security issues in [jxrlib](https://github.com/4creators/jxrlib): 
+> the upstream jxrlib is dead and there is no "hope" they will fix the issues.
+>
+> **You should not enable it unless you know what you are doing.**
+
+> [!note]
+> Security issues in the jxrlib discovered by the [KImageFormats OSS-Fuzz project](https://github.com/google/oss-fuzz/tree/master/projects/kimageformats) 
+> should be fixed in this [jxrlib fork](https://github.com/mircomir/jxrlib).
 
 The following defines can be defined in cmake to modify the behavior of the 
 plugin:
@@ -408,9 +478,6 @@ plugin:
   it only wants (P)BGRA32bpp files (a format not supported by Qt). Only for 
   this format an hack is activated to guarantee total compatibility of the 
   plugin with Windows.
-- `JXR_ENABLE_ADVANCED_METADATA`: enable metadata support (e.g. XMP). Some 
-  distributions use an incomplete JXR library that does not allow reading 
-  metadata, causing compilation errors.
 
 ### The KRA plugin
 
@@ -443,6 +510,13 @@ plugin:
 - `PSD_NATIVE_CMYK_SUPPORT_DISABLED`: disable native support for CMYK images 
   when compiled with Qt 6.8+
 
+The plugin can set the following additional metadata:
+  - `PSDDuotoneOptions`: Byte array in hexadecimal format of color data of the 
+     duotone specification (the format of which is not documented). From the PSD 
+     specification: *"Other applications that read Photoshop files can treat a 
+     duotone image as a gray image, and just preserve the contents of the duotone 
+     information when reading and writing the file."*
+
 ### The RAW plugin
 
 Loading RAW images always requires a conversion. To allow the user to

autotests/CMakeLists.txt

@@ -76,6 +76,7 @@ endmacro()
 # Loads each <format> image in read/<format>/, and compares the
 # result against the data read from the corresponding png file
 kimageformats_read_tests(
+    ff
     hdr
     iff
     pcx

autotests/README.md

@@ -48,7 +48,7 @@ Depending on the format, you can specify the following additional options.
 
 - `--help`: Displays help on commandline options.
 - `--fuzz <max>`: The fuzziness. Used to add some deviation in ARGB data 
-(nornally used on lossy codec).
+(normally used on lossy codec).
 - `--perceptive-fuzz`: Used to scale dynamically the fuzziness based on 
 the alpha channel value. This is useful on images with pre-multiplied and 
 small alphas. Qt can use different roundings based on optimizations resulting 

autotests/ossfuzz/build_fuzzers.sh

@@ -162,6 +162,7 @@ HANDLER_TYPES="ANIHandler ani
         QAVIFHandler avif
         QDDSHandler dds
         EXRHandler exr
+        FFHandler ff
         HDRHandler hdr
         HEIFHandler heif
         IFFHandler iff

autotests/ossfuzz/kimgio_fuzzer.cc

@@ -23,17 +23,19 @@
   Usage:
     python infra/helper.py build_image kimageformats
     python infra/helper.py build_fuzzers --sanitizer undefined|address|memory kimageformats
-    python infra/helper.py run_fuzzer kimageformats kimgio_[ani|avif|dds|exr|hdr|heif|iff|jp2|jxl|jxr|kra|ora|pcx|pfm|pic|psd|pxr|qoi|ras|raw|rgb|sct|tim|tga|xcf]_fuzzer
+    python infra/helper.py run_fuzzer kimageformats kimgio_[ani|avif|dds|exr|ff|hdr|heif|iff|jp2|jxl|jxr|kra|ora|pcx|pfm|pic|psd|pxr|qoi|ras|raw|rgb|sct|tim|tga|xcf]_fuzzer
 */
 
 #include <QBuffer>
 #include <QCoreApplication>
 #include <QImage>
+#include <QImageReader>
 
 #include "ani_p.h"
 #include "avif_p.h"
 #include "dds_p.h"
 #include "exr_p.h"
+#include "ff_p.h"
 #include "hdr_p.h"
 #include "heif_p.h"
 #include "iff_p.h"
@@ -61,6 +63,8 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
     int argc = 0;
     QCoreApplication a(argc, nullptr);
 
+    QImageReader::setAllocationLimit(512);
+
     QImageIOHandler* handler = new HANDLER();
 
     QImage i;

autotests/read/exr/ps2026_testcard_rgb.exr.json

@@ -0,0 +1,15 @@
+[
+    {
+        "fileName" : "ps2026_testcard_rgb.png",
+        "colorSpace" : {
+            "description" : "sRGB build-in (Profilo RGB lineare)",
+            "primaries" : "SRgb",
+            "transferFunction" : "Linear",
+            "gamma" : 1
+        },
+        "resolution" : {
+            "dotsPerMeterX" : 3937,
+            "dotsPerMeterY" : 3937
+        }
+    }
+]

autotests/read/exr/rgb-gimp.exr.json

@@ -2,7 +2,7 @@
     {
         "fileName" : "rgb-gimp.png",
         "colorSpace" : {
-            "description" : "",
+            "description" : "Embedded RGB (linear)",
             "primaries" : "Custom",
             "transferFunction" : "Linear",
             "gamma" : 1

autotests/read/heif/orientation1.heif.json

@@ -0,0 +1,17 @@
+[
+    {
+        "fileName" : "orientation_all.png",
+        "colorSpace" : {
+            "description" : "GIMP built-in sRGB",
+            "primaries" : "SRgb",
+            "transferFunction" : "SRgb",
+            "gamma" : 0
+        },
+        "metadata" : [
+            {
+                "key" : "Software" ,
+                "value" : "LIFE Pro 2.20.35 (Linux)"
+            }
+        ]
+    }
+]

autotests/read/heif/orientation2.heif.json

@@ -0,0 +1,11 @@
+[
+    {
+        "fileName" : "orientation_all.png",
+        "metadata" : [
+            {
+                "key" : "Software" ,
+                "value" : "LIFE Pro 2.20.35 (Linux)"
+            }
+        ]
+    }
+]

autotests/read/heif/orientation3.heif.json

@@ -0,0 +1,11 @@
+[
+    {
+        "fileName" : "orientation_all.png",
+        "metadata" : [
+            {
+                "key" : "Software" ,
+                "value" : "LIFE Pro 2.20.35 (Linux)"
+            }
+        ]
+    }
+]

autotests/read/heif/orientation4.heif.json

@@ -0,0 +1,11 @@
+[
+    {
+        "fileName" : "orientation_all.png",
+        "metadata" : [
+            {
+                "key" : "Software" ,
+                "value" : "LIFE Pro 2.20.35 (Linux)"
+            }
+        ]
+    }
+]

autotests/read/heif/orientation5.heif.json

@@ -0,0 +1,11 @@
+[
+    {
+        "fileName" : "orientation_all.png",
+        "metadata" : [
+            {
+                "key" : "Software" ,
+                "value" : "LIFE Pro 2.20.35 (Linux)"
+            }
+        ]
+    }
+]

autotests/read/heif/orientation6.heif.json

@@ -0,0 +1,11 @@
+[
+    {
+        "fileName" : "orientation_all.png",
+        "metadata" : [
+            {
+                "key" : "Software" ,
+                "value" : "LIFE Pro 2.20.35 (Linux)"
+            }
+        ]
+    }
+]

autotests/read/heif/orientation7.heif.json

@@ -0,0 +1,11 @@
+[
+    {
+        "fileName" : "orientation_all.png",
+        "metadata" : [
+            {
+                "key" : "Software" ,
+                "value" : "LIFE Pro 2.20.35 (Linux)"
+            }
+        ]
+    }
+]

autotests/read/heif/orientation8.heif.json

@@ -0,0 +1,11 @@
+[
+    {
+        "fileName" : "orientation_all.png",
+        "metadata" : [
+            {
+                "key" : "Software" ,
+                "value" : "LIFE Pro 2.20.35 (Linux)"
+            }
+        ]
+    }
+]

autotests/read/jxr/metadata.jxr.json

@@ -14,7 +14,7 @@
             },
             {
                 "key" : "Software" ,
-                "value" : "LIFE Pro 2.18.10"
+                "value" : "LIFE Pro 2.20.35"
             },
             {
                 "key" : "Altitude",
@@ -32,6 +32,10 @@
                 "key" : "Description",
                 "value" : "TV broadcast test image."
             },
+            {
+                "key" : "HostComputer",
+                "value" : "Windows 11 Enterprise (25H2)"
+            },
             {
                 "key" : "Latitude",
                 "value" : "44.6478"

autotests/write/basic/jxl.json

@@ -13,14 +13,18 @@
             "key" : "ModificationDate",
             "value" : "2025-02-14T15:58:44+01:00"
         },
-        {
-            "key" : "Software" ,
-            "value" : "Adobe Photoshop 26.2 (Windows)"
-        },
         {
             "key" : "Altitude",
             "value" : "34"
         },
+        {
+            "key" : "Title",
+            "value" : "A test"
+        },
+        {
+            "key" : "Software",
+            "value" : "KImageFormats write test"
+        },
         {
             "key" : "Author",
             "value" : "KDE Project"
@@ -45,6 +49,10 @@
             "key" : "LensModel",
             "value" : "A1234"
         },
+        {
+            "key" : "LensSerialNumber",
+            "value" : "S/N:1234567"
+        },
         {
             "key" : "Longitude",
             "value" : "10.9254"
@@ -56,6 +64,50 @@
         {
             "key" : "Model",
             "value" : "KImageFormats"
+        },
+        {
+            "key" : "SerialNumber",
+            "value" : "S/N:7654321"
+        },
+        {
+            "key" : "Speed",
+            "value" : "13.2"
+        },
+        {
+            "key" : "DigitalZoomRatio",
+            "value" : "3.4"
+        },
+        {
+            "key" : "ExposureMode",
+            "value" : "2"
+        },
+        {
+            "key" : "ExposureProgram",
+            "value" : "6"
+        },
+        {
+            "key" : "ExposureTime",
+            "value" : "0.004"
+        },
+        {
+            "key" : "Flash",
+            "value" : "16"
+        },
+        {
+            "key" : "FNumber",
+            "value" : "1.6"
+        },
+        {
+            "key" : "FocalLength",
+            "value" : "5.96"
+        },
+        {
+            "key" : "ISOSpeedRatings",
+            "value" : "50"
+        },
+        {
+            "key" : "WhiteBalance",
+            "value" : "1"
         }
     ],
     "resolution" : {

autotests/write/basic/jxr.json

@@ -41,6 +41,10 @@
             "key" : "LensModel",
             "value" : "A1234"
         },
+        {
+            "key" : "LensSerialNumber",
+            "value" : "S/N:1234567"
+        },
         {
             "key" : "Longitude",
             "value" : "10.9254"
@@ -52,6 +56,50 @@
         {
             "key" : "Model",
             "value" : "KImageFormats"
+        },
+        {
+            "key" : "SerialNumber",
+            "value" : "S/N:7654321"
+        },
+        {
+            "key" : "Speed",
+            "value" : "13.2"
+        },
+        {
+            "key" : "DigitalZoomRatio",
+            "value" : "3.4"
+        },
+        {
+            "key" : "ExposureMode",
+            "value" : "2"
+        },
+        {
+            "key" : "ExposureProgram",
+            "value" : "6"
+        },
+        {
+            "key" : "ExposureTime",
+            "value" : "0.004"
+        },
+        {
+            "key" : "Flash",
+            "value" : "16"
+        },
+        {
+            "key" : "FNumber",
+            "value" : "1.6"
+        },
+        {
+            "key" : "FocalLength",
+            "value" : "5.96"
+        },
+        {
+            "key" : "ISOSpeedRatings",
+            "value" : "50"
+        },
+        {
+            "key" : "WhiteBalance",
+            "value" : "1"
         }
     ],
     "resolution" : {

autotests/writetest.cpp

@@ -62,7 +62,7 @@ void setOptionalInfo(QImage &image, const QString &suffix)
 
     // Set metadata
     auto meta = obj.value("metadata").toArray();
-    for (auto jv : meta) {
+    for (auto &&jv : meta) {
         auto obj = jv.toObject();
         auto key = obj.value("key").toString();
         auto val = obj.value("value").toString();
@@ -106,7 +106,7 @@ bool checkOptionalInfo(QImage &image, const QString &suffix)
 
     // Test metadata
     auto meta = obj.value("metadata").toArray();
-    for (auto jv : meta) {
+    for (auto &&jv : meta) {
         auto obj = jv.toObject();
         auto key = obj.value("key").toString();
         auto val = obj.value("value").toString();

src/imageformats/CMakeLists.txt

@@ -73,6 +73,10 @@ endif()
 
 ##################################
 
+kimageformats_add_plugin(kimg_ff SOURCES ff.cpp)
+
+##################################
+
 kimageformats_add_plugin(kimg_hdr SOURCES hdr.cpp)
 
 ##################################

src/imageformats/avif.cpp

@@ -49,6 +49,16 @@ Quality range - compression/subsampling
 #define KIMG_AVIF_QUALITY_LOW 51
 #endif
 
+/* *** AVIF_MAX_IMAGE_WIDTH and AVIF_MAX_IMAGE_HEIGHT ***
+ * The maximum size in pixel allowed by the plugin.
+ */
+#ifndef AVIF_MAX_IMAGE_WIDTH
+#define AVIF_MAX_IMAGE_WIDTH KIF_64K_IMAGE_PIXEL_LIMIT
+#endif
+#ifndef AVIF_MAX_IMAGE_HEIGHT
+#define AVIF_MAX_IMAGE_HEIGHT AVIF_MAX_IMAGE_WIDTH
+#endif
+
 QAVIFHandler::QAVIFHandler()
     : m_parseState(ParseAvifNotParsed)
     , m_quality(KIMG_AVIF_DEFAULT_QUALITY)
@@ -168,7 +178,7 @@ bool QAVIFHandler::ensureDecoder()
 #endif
 
 #if AVIF_VERSION >= 110000
-    m_decoder->imageDimensionLimit = 65535;
+    m_decoder->imageDimensionLimit = std::max(AVIF_MAX_IMAGE_WIDTH, AVIF_MAX_IMAGE_HEIGHT) - 1;
 #endif
 
     avifResult decodeResult;
@@ -196,7 +206,7 @@ bool QAVIFHandler::ensureDecoder()
     m_container_width = m_decoder->image->width;
     m_container_height = m_decoder->image->height;
 
-    if ((m_container_width > 65535) || (m_container_height > 65535)) {
+    if ((m_container_width >= AVIF_MAX_IMAGE_WIDTH) || (m_container_height >= AVIF_MAX_IMAGE_HEIGHT)) {
         qCWarning(LOG_AVIFPLUGIN, "AVIF image (%dx%d) is too large!", m_container_width, m_container_height);
         m_parseState = ParseAvifError;
         return false;
@@ -605,7 +615,7 @@ bool QAVIFHandler::write(const QImage &image)
     }
 
     if ((image.width() > 0) && (image.height() > 0)) {
-        if ((image.width() > 65535) || (image.height() > 65535)) {
+        if ((image.width() >= AVIF_MAX_IMAGE_WIDTH) || (image.height() >= AVIF_MAX_IMAGE_HEIGHT)) {
             qCWarning(LOG_AVIFPLUGIN, "Image (%dx%d) is too large to save!", image.width(), image.height());
             return false;
         }

src/imageformats/chunks.cpp

@@ -295,6 +295,14 @@ IFFChunk::ChunkList IFFChunk::innerFromDevice(QIODevice *d, bool *ok, IFFChunk *
             chunk = QSharedPointer<IFFChunk>(new CTBLChunk());
         } else if (cid == DATE_CHUNK) {
             chunk = QSharedPointer<IFFChunk>(new DATEChunk());
+        } else if (cid == DBOD_CHUNK) {
+            chunk = QSharedPointer<IFFChunk>(new DBODChunk());
+        } else if (cid == DGBL_CHUNK) {
+            chunk = QSharedPointer<IFFChunk>(new DGBLChunk());
+        } else if (cid == DLOC_CHUNK) {
+            chunk = QSharedPointer<IFFChunk>(new DLOCChunk());
+        } else if (cid == DPEL_CHUNK) {
+            chunk = QSharedPointer<IFFChunk>(new DPELChunk());
         } else if (cid == DPI__CHUNK) {
             chunk = QSharedPointer<IFFChunk>(new DPIChunk());
         } else if (cid == EXIF_CHUNK) {
@@ -341,6 +349,8 @@ IFFChunk::ChunkList IFFChunk::innerFromDevice(QIODevice *d, bool *ok, IFFChunk *
             chunk = QSharedPointer<IFFChunk>(new SHAMChunk());
         } else if (cid == TBHD_CHUNK) {
             chunk = QSharedPointer<IFFChunk>(new TBHDChunk());
+        } else if (cid == TVDC_CHUNK) {
+            chunk = QSharedPointer<IFFChunk>(new TVDCChunk());
         } else if (cid == VDAT_CHUNK) {
             chunk = QSharedPointer<IFFChunk>(new VDATChunk());
         } else if (cid == VERS_CHUNK) {
@@ -1468,6 +1478,8 @@ bool FORMChunk::innerReadStructure(QIODevice *d)
         setChunks(IFFChunk::innerFromDevice(d, &ok, this));
     } else if (_type == RGFX_FORM_TYPE) {
         setChunks(IFFChunk::innerFromDevice(d, &ok, this));
+    } else if (_type == DEEP_FORM_TYPE || _type == TVPP_FORM_TYPE) {
+        setChunks(IFFChunk::innerFromDevice(d, &ok, this));
     }
     return ok;
 }
@@ -1585,6 +1597,72 @@ QImage::Format FORMChunk::rgfxFormat() const
     return QImage::Format_Invalid;
 }
 
+QImage::Format FORMChunk::deepFormat() const
+{
+    auto pels = IFFChunk::searchT<DPELChunk>(chunks());
+    if (pels.isEmpty()) {
+        return QImage::Format_Invalid;
+    }
+    auto list = pels.first()->elements();
+
+    // support for same depth on all elements
+    auto depth = -1;
+    for (auto &&el : list) {
+        if (depth < 0)
+            depth = el.depth;
+        if (depth != el.depth)
+            return QImage::Format_Invalid;
+    }
+
+    // calculate the image format
+    if (list.size() == 4) {
+        if (list.at(0).type == DPELChunk::Red &&
+            list.at(1).type == DPELChunk::Green &&
+            list.at(2).type == DPELChunk::Blue &&
+            list.at(3).type == DPELChunk::Alpha) {
+            if (depth == 8)
+                return FORMAT_RGBA_8BIT;
+            else if (depth == 16)
+                return QImage::Format_RGBA64;
+        } else if (list.at(0).type == DPELChunk::Cyan &&
+                   list.at(1).type == DPELChunk::Magenta &&
+                   list.at(2).type == DPELChunk::Yellow &&
+                   list.at(3).type == DPELChunk::Black) {
+            if (depth == 8)
+                return QImage::Format_CMYK8888;
+        } else if (list.at(0).type == DPELChunk::Red &&
+                   list.at(1).type == DPELChunk::Green &&
+                   list.at(2).type == DPELChunk::Blue) {
+            // unknown type of channel 4 -> ignoring it
+            if (depth == 8)
+                return QImage::Format_RGBX8888;
+            else if (depth == 16)
+                return QImage::Format_RGBX64;
+        }
+    } else if (list.size() == 3) {
+        if (list.at(0).type == DPELChunk::Red &&
+            list.at(1).type == DPELChunk::Green &&
+            list.at(2).type == DPELChunk::Blue) {
+            if (depth == 8)
+                return FORMAT_RGB_8BIT;
+        } else if (list.at(0).type == DPELChunk::Blue &&
+                   list.at(1).type == DPELChunk::Green &&
+                   list.at(2).type == DPELChunk::Red) {
+            if (depth == 8)
+                return QImage::Format_BGR888;
+        }
+    } else if (list.size() == 1) {
+        if (depth == 1)
+            return QImage::Format_Mono;
+        else if (depth == 8)
+            return QImage::Format_Grayscale8;
+        else if (depth == 16)
+            return QImage::Format_Grayscale16;
+    }
+
+    return QImage::Format_Invalid;
+}
+
 QByteArray FORMChunk::formType() const
 {
     return _type;
@@ -1596,6 +1674,8 @@ QImage::Format FORMChunk::format() const
         return cdiFormat();
     } else if (formType() == RGFX_FORM_TYPE) {
         return rgfxFormat();
+    } else if (formType() == DEEP_FORM_TYPE || formType() == TVPP_FORM_TYPE) {
+        return deepFormat();
     }
     return iffFormat();
 }
@@ -1612,6 +1692,15 @@ QSize FORMChunk::size() const
         if (!rghds.isEmpty()) {
             return rghds.first()->size();
         }
+    } else if (formType() == DEEP_FORM_TYPE || formType() == TVPP_FORM_TYPE) {
+        auto dlocs = IFFChunk::searchT<DLOCChunk>(chunks());
+        if (!dlocs.isEmpty()) {
+            return dlocs.first()->size();
+        }
+        auto dgbls = IFFChunk::searchT<DGBLChunk>(chunks());
+        if (!dgbls.isEmpty()) {
+            return dgbls.first()->size();
+        }
     } else {
         auto bmhds = IFFChunk::searchT<BMHDChunk>(chunks());
         if (!bmhds.isEmpty()) {
@@ -1735,6 +1824,8 @@ bool CATChunk::innerReadStructure(QIODevice *d)
         setChunks(IFFChunk::innerFromDevice(d, &ok, this));
     } else if (_type == RGFX_FORM_TYPE) {
         setChunks(IFFChunk::innerFromDevice(d, &ok, this));
+    } else if (_type == DEEP_FORM_TYPE || _type == TVPP_FORM_TYPE) {
+        setChunks(IFFChunk::innerFromDevice(d, &ok, this));
     }
     return ok;
 }
@@ -3574,6 +3665,438 @@ quint32 RBODChunk::strideSize(const RGHDChunk *header) const
 }
 
 
+/* ******************
+ * *** DGBL Chunk ***
+ * ****************** */
+
+DGBLChunk::~DGBLChunk()
+{
+
+}
+
+DGBLChunk::DGBLChunk()
+    : IFFChunk()
+{
+
+}
+
+DGBLChunk::Compression DGBLChunk::compression() const
+{
+    if (!isValid()) {
+        return Compression::Uncompressed;
+    }
+    return Compression(ui16(data(), 4));
+
+}
+
+qint32 DGBLChunk::width() const
+{
+    if (!isValid()) {
+        return 0;
+    }
+    return qint32(ui16(data(), 0));
+}
+
+qint32 DGBLChunk::height() const
+{
+    if (!isValid()) {
+        return 0;
+    }
+    return qint32(ui16(data(), 2));
+}
+
+quint8 DGBLChunk::xAspectRatio() const
+{
+    if (!isValid()) {
+        return 0;
+    }
+    return quint8(data().at(6));
+}
+
+quint8 DGBLChunk::yAspectRatio() const
+{
+    if (!isValid()) {
+        return 0;
+    }
+    return quint8(data().at(7));
+}
+
+bool DGBLChunk::isValid() const
+{
+    if (dataBytes() < 8) {
+        return false;
+    }
+    return chunkId() == DGBLChunk::defaultChunkId();
+}
+
+bool DGBLChunk::innerReadStructure(QIODevice *d)
+{
+    return cacheData(d);
+}
+
+
+/* ******************
+ * *** DPEL Chunk ***
+ * ****************** */
+
+DPELChunk::~DPELChunk()
+{
+
+}
+
+DPELChunk::DPELChunk()
+    : IFFChunk()
+{
+
+}
+
+qint32 DPELChunk::count() const
+{
+    if (dataBytes() < 4) {
+        return 0;
+    }
+    auto cnt = i32(data(), 0);
+    if (cnt < 0 || cnt > 128) {
+        // an image should have 3, 4 or 5 channels:
+        // 128 is enough to give an error.
+        cnt = 0;
+    }
+    return cnt;
+}
+
+qint32 DPELChunk::depth() const
+{
+    auto depth = 0;
+    auto list = elements();
+    for (auto &&el : list) {
+        depth += el.depth;
+    }
+    return depth;
+}
+
+QList<DPELChunk::Element> DPELChunk::elements() const
+{
+    QList<DPELChunk::Element> list;
+    if (isValid()) {
+        for (auto n = count(), i = 0; i < n; ++i) {
+            auto idx = 4 + i * 4;
+            list << DPELChunk::Element(DataType(ui16(data(), idx)),
+                                       ui16(data(), idx + 2));
+        }
+    }
+    return list;
+}
+
+bool DPELChunk::isValid() const
+{
+    if (dataBytes() < quint32(4 + count() * 4)) {
+        return false;
+    }
+    return chunkId() == DPELChunk::defaultChunkId();
+}
+
+bool DPELChunk::innerReadStructure(QIODevice *d)
+{
+    return cacheData(d);
+}
+
+
+/* ******************
+ * *** DLOC Chunk ***
+ * ****************** */
+
+DLOCChunk::~DLOCChunk()
+{
+
+}
+
+DLOCChunk::DLOCChunk()
+    : IFFChunk()
+{
+
+}
+
+qint32 DLOCChunk::width() const
+{
+    if (!isValid()) {
+        return 0;
+    }
+    return qint32(ui16(data(), 0));
+}
+
+qint32 DLOCChunk::height() const
+{
+    if (!isValid()) {
+        return 0;
+    }
+    return qint32(ui16(data(), 2));
+}
+
+QSize DLOCChunk::size() const
+{
+    return QSize(width(), height());
+}
+
+qint32 DLOCChunk::xOffset() const
+{
+    if (!isValid()) {
+        return 0;
+    }
+    return qint32(i16(data(), 4));
+}
+
+qint32 DLOCChunk::yOffset() const
+{
+    if (!isValid()) {
+        return 0;
+    }
+    return qint32(i16(data(), 6));
+}
+
+bool DLOCChunk::isValid() const
+{
+    if (dataBytes() < 8) {
+        return false;
+    }
+    return chunkId() == DLOCChunk::defaultChunkId();
+}
+
+bool DLOCChunk::innerReadStructure(QIODevice *d)
+{
+    return cacheData(d);
+}
+
+
+/* ******************
+ * *** TVDC Chunk ***
+ * ****************** */
+
+TVDCChunk::~TVDCChunk()
+{
+
+}
+
+TVDCChunk::TVDCChunk()
+    : IFFChunk()
+{
+
+}
+
+qint32 TVDCChunk::count() const
+{
+    if (!isValid()) {
+        return 0;
+    }
+    return dataBytes() / 2;
+}
+
+QList<quint16> TVDCChunk::table() const
+{
+    QList<quint16> list;
+    if (isValid()) {
+        for (auto n = count(), i = 0; i < n; ++i) {
+            list << ui16(data(), i * 2);
+        }
+    }
+    return list;
+}
+
+bool TVDCChunk::isValid() const
+{
+    if (dataBytes() < 32) {
+        return false;
+    }
+    return chunkId() == TVDCChunk::defaultChunkId();
+}
+
+bool TVDCChunk::innerReadStructure(QIODevice *d)
+{
+    return cacheData(d);
+}
+
+
+/* ******************
+ * *** DBOD Chunk ***
+ * ****************** */
+
+DBODChunk::~DBODChunk()
+{
+
+}
+
+DBODChunk::DBODChunk()
+    : IFFChunk()
+{
+
+}
+
+bool DBODChunk::isValid() const
+{
+    return chunkId() == DBODChunk::defaultChunkId();
+}
+
+/*!
+ * \brief rleDeepDecompress
+ * Each run contains a pixel (all components)
+ */
+inline qint64 rleDeepDecompress(QIODevice *input, char *output, qint64 olen, qint32 pixelBytes)
+{
+    qint64 j = 0;
+    pixelBytes = std::max(1, pixelBytes);
+    for (qint64 rr = 0, available = olen; j < olen; available = olen - j) {
+        char n;
+
+        // check the output buffer space for the next run
+        if (available < 129 * pixelBytes) {
+            if (input->peek(&n, 1) != 1) { // end of data (or error)
+                break;
+            }
+            if ((static_cast<signed char>(n) >= 0 ? qint64(n) + 1 : qint64(1 - n)) * pixelBytes > available)
+                break;
+        }
+
+        // decompress
+        if (input->read(&n, 1) != 1) { // end of data (or error)
+            break;
+        }
+
+        if (static_cast<signed char>(n) >= 0) {
+            rr = input->read(output + j, (qint64(n) + 1) * pixelBytes);
+            if (rr == -1) {
+                return -1;
+            }
+        }
+        else {
+            auto buf = input->read(pixelBytes);
+            if (buf.size() != pixelBytes) {
+                break;
+            }
+            rr = qint64(1 - static_cast<signed char>(n));
+            for (qint64 i = 0; i < rr; ++i) {
+                std::memcpy(output + j + i * pixelBytes, buf.data(), buf.size());
+            }
+            rr *= pixelBytes;
+        }
+
+        j += rr;
+    }
+    return j;
+}
+
+/*!
+ * \brief tvdcDeepDecompress
+ * the compression is made line by line for each elementof the chunk DPEL.
+ * For RGBA for example we have a Red line, a Green line, and so on.
+ */
+inline qint64 tvdcDeepDecompress(QIODevice *input, char *output, qint64 olen, const QList<quint16>& table)
+{
+    if (table.size() != 16) {
+        return -1;
+    }
+
+    quint8 v = 0;
+    quint8 last = 0;
+    for (qint64 i = 0, pos = 0, lastRead = -1; i < olen; ++i) {
+        if ((pos >> 1) != lastRead) {
+            char n;
+            if (input->read(&n, 1) != 1) {
+                return -1;
+            }
+            lastRead = (pos >> 1);
+            last = quint8(n);
+        }
+        quint8 d = last;
+        if (pos++ & 1) {
+            d &= 0xf;
+        } else {
+            d >>= 4;
+        }
+        v += table.at(d);
+        output[i] = char(v);
+        if (!table.at(d)) {
+            if ((pos >> 1) != lastRead) {
+                char n;
+                if (input->read(&n, 1) != 1) {
+                    return -1;
+                }
+                lastRead = (pos >> 1);
+                last = quint8(n);
+            }
+            d = last;
+            if (pos++ & 1) {
+                d &= 0xf;
+            } else {
+                d >>= 4;
+            }
+            while (d--) {
+                if (i < olen - 1) {
+                    output[++i] = char(v);
+                    continue;
+                }
+                return -1;
+            }
+        }
+    }
+    return olen;
+}
+
+QByteArray DBODChunk::strideRead(QIODevice *d, qint32, const DGBLChunk *header, const DPELChunk *pel, const DLOCChunk *loc, const TVDCChunk *tvdc) const
+{
+    auto size = strideSize(header, pel, loc);
+    if (size == 0) {
+        return {};
+    }
+
+    qint64 rr = 0;
+    QByteArray planes(size, char());
+    if (header->compression() == DGBLChunk::Compression::Uncompressed) {
+        rr = d->read(planes.data(), planes.size());
+    } else if (header->compression() == DGBLChunk::Compression::Rle) {
+        rr = rleDeepDecompress(d, planes.data(), planes.size(), pel->depth() / 8);
+    } else if (header->compression() == DGBLChunk::Compression::TvDeepCompression) {
+        if (tvdc) { // TVDC is planar, so I have to convert to chunky
+            auto table = tvdc->table();
+            for (auto i = 0, n = pel->count(); i < n; ++i) {
+                QByteArray ba(size / n, char());
+                rr += tvdcDeepDecompress(d, ba.data(), ba.size(), tvdc->table());
+                for (auto j = 0, m = int(ba.size()); j < m; ++j) {
+                    planes[i + j * n] = ba.at(j);
+                }
+            }
+        }
+    } else {
+        qCDebug(LOG_IFFPLUGIN) << "DBODChunk::strideRead(): unknown compression" << header->compression();
+    }
+
+    // Uncompressed, Rle and TvDeepCompression: one line at a time.
+    if (rr != size) {
+        return {};
+    }
+
+    // byte swap
+    if (auto count = pel->count()) {
+        if (pel->depth() / count == 16) {
+            for (auto x = 0, w = qint32(planes.size()) - 1; x < w; x += 2) {
+                std::swap(planes[x], planes[x + 1]);
+            }
+        }
+    }
+
+    return planes;
+}
+
+bool DBODChunk::resetStrideRead(QIODevice *d) const
+{
+    return seek(d);
+}
+
+quint32 DBODChunk::strideSize(const DGBLChunk *header, const DPELChunk *pel, const DLOCChunk *loc) const
+{
+    auto width = loc ? loc->width() : header->width();
+    return (width * pel->depth() + 7) / 8;
+}
+
+
 /* ******************
  * *** BEAM Chunk ***
  * ****************** */

src/imageformats/chunks_p.h

@@ -55,6 +55,10 @@ Q_DECLARE_LOGGING_CATEGORY(LOG_IFFPLUGIN)
 #define CAMG_CHUNK QByteArray("CAMG")
 #define CMAP_CHUNK QByteArray("CMAP")
 #define CMYK_CHUNK QByteArray("CMYK") // https://wiki.amigaos.net/wiki/ILBM_IFF_Interleaved_Bitmap#ILBM.CMYK
+#define DBOD_CHUNK QByteArray("DBOD")
+#define DGBL_CHUNK QByteArray("DGBL")
+#define DLOC_CHUNK QByteArray("DLOC")
+#define DPEL_CHUNK QByteArray("DPEL")
 #define DPI__CHUNK QByteArray("DPI ")
 #define IDAT_CHUNK QByteArray("IDAT")
 #define IHDR_CHUNK QByteArray("IHDR")
@@ -65,6 +69,7 @@ Q_DECLARE_LOGGING_CATEGORY(LOG_IFFPLUGIN)
 #define RFLG_CHUNK QByteArray("RFLG")
 #define RGHD_CHUNK QByteArray("RGHD")
 #define RSCM_CHUNK QByteArray("RSCM")
+#define TVDC_CHUNK QByteArray("TVDC")
 #define XBMI_CHUNK QByteArray("XBMI")
 #define YUVS_CHUNK QByteArray("YUVS")
 
@@ -96,12 +101,14 @@ Q_DECLARE_LOGGING_CATEGORY(LOG_IFFPLUGIN)
 
 // FORM types
 #define ACBM_FORM_TYPE QByteArray("ACBM")
+#define DEEP_FORM_TYPE QByteArray("DEEP")
 #define ILBM_FORM_TYPE QByteArray("ILBM")
 #define IMAG_FORM_TYPE QByteArray("IMAG")
 #define PBM__FORM_TYPE QByteArray("PBM ")
 #define RGB8_FORM_TYPE QByteArray("RGB8")
 #define RGBN_FORM_TYPE QByteArray("RGBN")
 #define RGFX_FORM_TYPE QByteArray("RGFX")
+#define TVPP_FORM_TYPE QByteArray("TVPP") // same as DEEP
 
 #define CIMG_FOR4_TYPE QByteArray("CIMG")
 #define TBMP_FOR4_TYPE QByteArray("TBMP")
@@ -642,11 +649,23 @@ class CAMGChunk : public IFFChunk
 {
 public:
     enum ModeId {
-        LoResLace = 0x0004,
+        GenLockVideo = 0x0002,
+        InterlacedDisplay = 0x0004,
+        DoubleScan = 0x0008,
+        SuperHighResolution = 0x0020,
+        PlayfieldBitplaneAdjust = 0x0040,
         HalfBrite = 0x0080,
-        LoResDpf = 0x0400,
-        Ham = 0x0800,
-        HiRes = 0x8000
+        GenLockAudio = 0x0100,
+        DualPlayfield = 0x0400,
+        HoldAndModify = 0x0800,
+        ExtendedMode = 0x1000,
+        ViewPortHide = 0x2000,
+        Sprites = 0x4000,
+        HighResolution = 0x8000,
+
+        // aliases
+        Lace = InterlacedDisplay,
+        Ham = HoldAndModify
     };
 
     Q_DECLARE_FLAGS(ModeIds, ModeId)
@@ -946,6 +965,8 @@ private:
     QImage::Format cdiFormat() const;
 
     QImage::Format rgfxFormat() const;
+
+    QImage::Format deepFormat() const;
 };
 
 
@@ -1946,6 +1967,266 @@ private:
 };
 
 
+/*!
+ * *** DEEP IFF CHUNKS ***
+ */
+
+/*!
+ * \brief The DGBLChunk class
+ */
+class DGBLChunk : public IFFChunk
+{
+public:
+    enum Compression : quint16 {
+        Uncompressed = 0,
+        Rle = 1,
+        Huffman = 2,
+        DynamicHuffman = 3,
+        Jpeg = 4,
+        TvDeepCompression = 5
+    };
+
+    virtual ~DGBLChunk() override;
+    DGBLChunk();
+    DGBLChunk(const DGBLChunk& other) = default;
+    DGBLChunk& operator =(const DGBLChunk& other) = default;
+
+    /*!
+     * \brief compression
+     * \return The type of compression used.
+     */
+    Compression compression() const;
+
+    /*!
+     * \brief width
+     * \return Width of the source display in pixels.
+     */
+    qint32 width() const;
+
+    /*!
+     * \brief height
+     * \return Height of the source display in pixels.
+     */
+    qint32 height() const;
+
+    /*!
+     * \brief size
+     * \return Size of the source display in pixels.
+     */
+    QSize size() const
+    {
+        return QSize(width(), height());
+    }
+
+    /*!
+     * \brief xAspectRatio
+     * \return X pixel aspect.
+     */
+    quint8 xAspectRatio() const;
+
+    /*!
+     * \brief yAspectRatio
+     * \return Y pixel aspect.
+     */
+    quint8 yAspectRatio() const;
+
+    virtual bool isValid() const override;
+
+    CHUNKID_DEFINE(DGBL_CHUNK)
+
+protected:
+    virtual bool innerReadStructure(QIODevice *d) override;
+};
+
+
+/*!
+ * \brief The DPELChunk class
+ */
+class DPELChunk : public IFFChunk
+{
+public:
+    enum DataType : quint16 {
+        Invalid = 0,
+        Red = 1,
+        Green = 2,
+        Blue = 3,
+        Alpha = 4,
+        Yellow = 5,
+        Cyan = 6,
+        Magenta = 7,
+        Black = 8,
+        Mask = 9,
+        ZBuffer = 10,
+        Opacity = 11,
+        LinearKey = 12,
+        BinaryKey = 13
+    };
+
+    struct Element {
+        Element(const DataType& t = DataType::Invalid, quint16 d = 0) : type(t), depth(d) {}
+        DataType type;
+        quint16 depth;
+    };
+
+    virtual ~DPELChunk() override;
+    DPELChunk();
+    DPELChunk(const DPELChunk& other) = default;
+    DPELChunk& operator =(const DPELChunk& other) = default;
+
+    /*!
+     * \brief count
+     * \return The number of elements
+     */
+    qint32 count() const;
+
+    /*!
+     * \brief depth
+     * \return The pixel depth.
+     */
+    qint32 depth() const;
+
+    /*!
+     * \brief elements
+     * Elements needed to identify the content of every pixel.
+     * Pixels will always be padded to byte boundaries.
+     * \return The list of elements. An empty list on error.
+     */
+    QList<Element> elements() const;
+
+    virtual bool isValid() const override;
+
+    CHUNKID_DEFINE(DPEL_CHUNK)
+
+protected:
+    virtual bool innerReadStructure(QIODevice *d) override;
+};
+
+
+/*!
+ * \brief The DLOCChunk class
+ */
+class DLOCChunk : public IFFChunk
+{
+public:
+    virtual ~DLOCChunk() override;
+    DLOCChunk();
+    DLOCChunk(const DLOCChunk& other) = default;
+    DLOCChunk& operator =(const DLOCChunk& other) = default;
+
+    /*!
+     * \brief width
+     * \return Width of the bitmap in pixels.
+     */
+    qint32 width() const;
+
+    /*!
+     * \brief height
+     * \return Height of the bitmap in pixels.
+     */
+    qint32 height() const;
+
+    /*!
+     * \brief size
+     * \return Size in pixels.
+     */
+    QSize size() const;
+
+    /*!
+     * \brief xOffset
+     * X offset of origin in source image.
+     */
+    qint32 xOffset() const;
+
+    /*!
+     * \brief yOffset
+     * \returnX offset of origin in source image.
+     */
+    qint32 yOffset() const;
+
+    virtual bool isValid() const override;
+
+    CHUNKID_DEFINE(DLOC_CHUNK)
+
+protected:
+    virtual bool innerReadStructure(QIODevice *d) override;
+};
+
+
+/*!
+ * \brief The TVDCChunk class
+ */
+class TVDCChunk : public IFFChunk
+{
+public:
+    virtual ~TVDCChunk() override;
+    TVDCChunk();
+    TVDCChunk(const TVDCChunk& other) = default;
+    TVDCChunk& operator =(const TVDCChunk& other) = default;
+
+    qint32 count() const;
+
+    QList<quint16> table() const;
+
+    virtual bool isValid() const override;
+
+    CHUNKID_DEFINE(TVDC_CHUNK)
+
+protected:
+    virtual bool innerReadStructure(QIODevice *d) override;
+};
+
+
+/*!
+ * \brief The DBODChunk class
+ */
+class DBODChunk : public IFFChunk
+{
+public:
+    virtual ~DBODChunk() override;
+    DBODChunk();
+    DBODChunk(const DBODChunk& other) = default;
+    DBODChunk& operator =(const DBODChunk& other) = default;
+
+    virtual bool isValid() const override;
+
+    CHUNKID_DEFINE(DBOD_CHUNK)
+
+    /*!
+     * \brief readStride
+     * \param d The device.
+     * \param y The current scanline.
+     * \param header The bitmap header.
+     * \param pel The pixel elements info.
+     * \param loc The display location (optional).
+     * \return The scanline as requested for QImage.
+     * \warning Call resetStrideRead() once before this one.
+     */
+    QByteArray strideRead(QIODevice *d,
+                          qint32 y,
+                          const DGBLChunk *header,
+                          const DPELChunk *pel,
+                          const DLOCChunk *loc = nullptr,
+                          const TVDCChunk *tvdc = nullptr) const;
+
+    /*!
+     * \brief resetStrideRead
+     * Reset the stride read set the position at the beginning of the data and reset all buffers.
+     * \param d The device.
+     * \return True on success, otherwise false.
+     * \sa strideRead
+     * \note Must be called once before strideRead().
+     */
+    bool resetStrideRead(QIODevice *d) const;
+
+protected:
+    /*!
+     * \brief strideSize
+     * \return The size of data to have to decode an image row.
+     */
+    quint32 strideSize(const DGBLChunk *header, const DPELChunk *pel, const DLOCChunk *loc = nullptr) const;
+};
+
+
 /*!
  * *** UNDOCUMENTED CHUNKS ***
  */

src/imageformats/dds.json

@@ -1,4 +1,4 @@
 {
-    "Keys": [ "dds" ],
-    "MimeTypes": [ "image/x-dds" ]
+    "Keys": [ "dds", "dds" ],
+    "MimeTypes": [ "image/vnd.ms-dds", "image/x-dds" ]
 }

src/imageformats/exr.cpp

@@ -58,6 +58,7 @@
 #include <ImathBox.h>
 #include <ImfArray.h>
 #include <ImfBoxAttribute.h>
+#include <ImfOpaqueAttribute.h>
 #include <ImfChannelListAttribute.h>
 #include <ImfCompressionAttribute.h>
 #include <ImfConvert.h>
@@ -208,6 +209,8 @@ EXRHandler::EXRHandler()
 {
     // Set the number of threads to use (0 is allowed)
     Imf::setGlobalThreadCount(QThread::idealThreadCount() / 2);
+    // Set maximum image size
+    Imf::Header::setMaxImageSize(EXR_MAX_IMAGE_WIDTH, EXR_MAX_IMAGE_HEIGHT);
 }
 
 bool EXRHandler::canRead() const
@@ -227,25 +230,57 @@ static QImage::Format imageFormat(const Imf::RgbaInputFile &file)
 
 /*!
  * \brief viewList
- * \param header
+ * \param header The image header.
  * \return The list of available views.
+ * \note This plugin does not support compositing layers which are returned as single images.
  */
 static QStringList viewList(const Imf::Header &h)
 {
     QStringList l;
     if (auto views = h.findTypedAttribute<Imf::StringVectorAttribute>("multiView")) {
+        // Internally OpenEXR first checks if the multiView attribute is present:
+        // if present, I have no other layers.
         for (auto &&v : views->value()) {
             l << QString::fromStdString(v);
         }
+    } else {
+        // Recent versions of Photoshop save images by setting the layer.
+        // Channels are named Layer 1.A, Layer 1.B, etc., so I have to set
+        // the layer or the images will appear black.
+        auto channels = h.channels();
+        for (auto i = channels.begin(); i != channels.end(); ++i) {
+            auto name = QString::fromLatin1(i.name(), -1);
+            auto idx = name.indexOf(QChar(u'.'));
+            if (idx > -1)
+                l << name.left(idx);
+        }
+        l.removeDuplicates();
     }
     return l;
 }
 
+static QString setLayerName(Imf::RgbaInputFile &file, qint32 imageNumber = -1)
+{
+    // set the image to load
+    QString layerName;
+    auto &&header = file.header();
+    if (imageNumber > -1) {
+        auto views = viewList(header);
+        if (imageNumber < views.count())
+            layerName = views.at(imageNumber);
+    }
+    // set the layer name
+    if (!layerName.isEmpty()) {
+        file.setLayerName(layerName.toStdString());
+    }
+    return layerName;
+}
+
 #ifdef QT_DEBUG
 static void printAttributes(const Imf::Header &h)
 {
     for (auto i = h.begin(); i != h.end(); ++i) {
-        qCDebug(LOG_EXRPLUGIN) << i.name();
+        qCDebug(LOG_EXRPLUGIN) << i.name() << i.attribute().typeName();
     }
 }
 #endif
@@ -340,15 +375,29 @@ static void readColorSpace(const Imf::Header &header, QImage &image)
 {
     // final color operations
     QColorSpace cs;
-    if (auto chroma = header.findTypedAttribute<Imf::ChromaticitiesAttribute>("chromaticities")) {
-        auto &&v = chroma->value();
-        cs = QColorSpace(QPointF(v.white.x, v.white.y),
-                         QPointF(v.red.x, v.red.y),
-                         QPointF(v.green.x, v.green.y),
-                         QPointF(v.blue.x, v.blue.y),
-                         QColorSpace::TransferFunction::Linear);
+
+    // Photoshop 2026 allow to save the ICC profile as "iccProfile" attribute
+    if (auto iccProfile = header.findTypedAttribute<Imf::OpaqueAttribute>("iccProfile")) {
+        auto &&v = iccProfile->data();
+        cs = QColorSpace::fromIccProfile(QByteArray::fromRawData(v, v.size()));
     }
+
     if (!cs.isValid()) {
+        // Creating the ICC profile from Chromaticities
+        if (auto chroma = header.findTypedAttribute<Imf::ChromaticitiesAttribute>("chromaticities")) {
+            auto &&v = chroma->value();
+            cs = QColorSpace(QPointF(v.white.x, v.white.y),
+                             QPointF(v.red.x, v.red.y),
+                             QPointF(v.green.x, v.green.y),
+                             QPointF(v.blue.x, v.blue.y),
+                             QColorSpace::TransferFunction::Linear);
+            if (cs.isValid())
+                cs.setDescription(QStringLiteral("Embedded RGB (linear)"));
+        }
+    }
+
+    if (!cs.isValid()) {
+        // Use a linear profile
         cs = QColorSpace(QColorSpace::SRgbLinear);
     }
     image.setColorSpace(cs);
@@ -377,12 +426,7 @@ bool EXRHandler::read(QImage *outImage)
         auto &&header = file.header();
 
         // set the image to load
-        if (m_imageNumber > -1) {
-            auto views = viewList(header);
-            if (m_imageNumber < views.count()) {
-                file.setLayerName(views.at(m_imageNumber).toStdString());
-            }
-        }
+        auto layerName = setLayerName(file, m_imageNumber);
 
         // get image info
         Imath::Box2i dw = file.dataWindow();
@@ -401,6 +445,9 @@ bool EXRHandler::read(QImage *outImage)
             qCWarning(LOG_EXRPLUGIN) << "Failed to allocate image, invalid size?" << QSize(width, height);
             return false;
         }
+        if (!layerName.isEmpty()) {
+            image.setText(QStringLiteral("EXRLayerName"), layerName);
+        }
 
         Imf::Array2D<Imf::Rgba> pixels;
         pixels.resizeErase(EXR_LINES_PER_BLOCK, width);
@@ -688,12 +735,7 @@ QVariant EXRHandler::option(ImageOption option) const
             try {
                 K_IStream istr(d);
                 Imf::RgbaInputFile file(istr);
-                if (m_imageNumber > -1) { // set the image to read
-                    auto views = viewList(file.header());
-                    if (m_imageNumber < views.count()) {
-                        file.setLayerName(views.at(m_imageNumber).toStdString());
-                    }
-                }
+                setLayerName(file, m_imageNumber);
                 Imath::Box2i dw = file.dataWindow();
                 v = QVariant(QSize(dw.max.x - dw.min.x + 1, dw.max.y - dw.min.y + 1));
             } catch (const std::exception &) {
@@ -713,6 +755,7 @@ QVariant EXRHandler::option(ImageOption option) const
             try {
                 K_IStream istr(d);
                 Imf::RgbaInputFile file(istr);
+                setLayerName(file, m_imageNumber);
                 v = QVariant::fromValue(imageFormat(file));
             } catch (const std::exception &) {
                 // broken file or unsupported version
@@ -787,12 +830,9 @@ bool EXRHandler::canRead(QIODevice *device)
         return false;
     }
 
-#if OPENEXR_VERSION_MAJOR == 3 && OPENEXR_VERSION_MINOR > 2
-    // openexpr >= 3.3 uses seek and tell extensively
     if (device->isSequential()) {
         return false;
     }
-#endif
 
     const QByteArray head = device->peek(4);
 

src/imageformats/exr_p.h

@@ -86,6 +86,8 @@ private:
      * - 7: lossy 4-by-4 pixel block compression, fields are compressed more
      * - 8: lossy DCT based compression, in blocks of 32 scanlines. More efficient for partial buffer access.
      * - 9: lossy DCT based compression, in blocks of 256 scanlines. More efficient space wise and faster to decode full frames than DWAA_COMPRESSION.
+     * - 10: High-Throughput JPEG2000 (HTJ2K), 256 scanlines (requires OpenEXR 3.4+).
+     * - 11: High-Throughput JPEG2000 (HTJ2K), 32 scanlines (requires OpenEXR 3.4+).
      */
     qint32 m_compressionRatio;
 

src/imageformats/ff.cpp

@@ -0,0 +1,259 @@
+/*
+    This file is part of the KDE project
+    SPDX-FileCopyrightText: 2026 Mirco Miranda <mircomir@outlook.com>
+
+    SPDX-License-Identifier: LGPL-2.0-or-later
+*/
+
+// Specs: https://tools.suckless.org/farbfeld/
+
+#include "ff_p.h"
+#include "util_p.h"
+
+#include <QColorSpace>
+#include <QIODevice>
+#include <QImage>
+#include <QLoggingCategory>
+#include <QtEndian>
+
+Q_DECLARE_LOGGING_CATEGORY(LOG_FFPLUGIN)
+
+#ifdef QT_DEBUG
+Q_LOGGING_CATEGORY(LOG_FFPLUGIN, "kf.imageformats.plugins.ff", QtDebugMsg)
+#else
+Q_LOGGING_CATEGORY(LOG_FFPLUGIN, "kf.imageformats.plugins.ff", QtWarningMsg)
+#endif
+
+/* *** FF_MAX_IMAGE_WIDTH and FF_MAX_IMAGE_HEIGHT ***
+ * The maximum size in pixel allowed by the plugin.
+ */
+#ifndef FF_MAX_IMAGE_WIDTH
+#define FF_MAX_IMAGE_WIDTH KIF_LARGE_IMAGE_PIXEL_LIMIT
+#endif
+#ifndef FF_MAX_IMAGE_HEIGHT
+#define FF_MAX_IMAGE_HEIGHT FF_MAX_IMAGE_WIDTH
+#endif
+
+#define HEADER_SIZE 16
+
+class FFHeader
+{
+private:
+    QByteArray m_rawHeader;
+
+public:
+    FFHeader()
+    {
+
+    }
+
+    bool isValid() const
+    {
+        if (m_rawHeader.size() < HEADER_SIZE) {
+            return false;
+        }
+        return m_rawHeader.startsWith(QByteArray::fromRawData("farbfeld", 8));
+    }
+
+    bool isSupported() const
+    {
+        auto w = width();
+        auto h = height();
+        if (w < 1 || w > FF_MAX_IMAGE_WIDTH || h < 1 || h > FF_MAX_IMAGE_HEIGHT) {
+            return false;
+        }
+        return format() != QImage::Format_Invalid;
+    }
+
+    qint32 width() const
+    {
+        if (!isValid()) {
+            return 0;
+        }
+        return qFromBigEndian<qint32>(m_rawHeader.data() + 8);
+    }
+
+    qint32 height() const
+    {
+        if (!isValid()) {
+            return 0;
+        }
+        return qFromBigEndian<qint32>(m_rawHeader.data() + 12);
+    }
+
+    QSize size() const
+    {
+        return QSize(width(), height());
+    }
+
+    QImage::Format format() const
+    {
+        if (!isValid()) {
+            return QImage::Format_Invalid;
+        }
+        return QImage::Format_RGBA64;
+    }
+
+    bool read(QIODevice *d)
+    {
+        m_rawHeader = d->read(HEADER_SIZE);
+        if (m_rawHeader.size() != HEADER_SIZE) {
+            return false;
+        }
+        return isValid();
+    }
+
+    bool peek(QIODevice *d)
+    {
+        m_rawHeader = d->peek(HEADER_SIZE);
+        if (m_rawHeader.size() != HEADER_SIZE) {
+            return false;
+        }
+        return isValid();
+    }
+};
+
+class FFHandlerPrivate
+{
+public:
+    FFHandlerPrivate() {}
+    ~FFHandlerPrivate() {}
+
+    FFHeader m_header;
+};
+
+FFHandler::FFHandler()
+    : QImageIOHandler()
+    , d(new FFHandlerPrivate)
+{
+}
+
+bool FFHandler::canRead() const
+{
+    if (canRead(device())) {
+        setFormat("ff");
+        return true;
+    }
+    return false;
+}
+
+bool FFHandler::canRead(QIODevice *device)
+{
+    if (!device) {
+        qCWarning(LOG_FFPLUGIN) << "FFHandler::canRead() called with no device";
+        return false;
+    }
+
+    FFHeader h;
+    if (!h.peek(device)) {
+        return false;
+    }
+
+    return h.isSupported();
+}
+
+bool FFHandler::read(QImage *image)
+{
+    auto&& header = d->m_header;
+
+    if (!header.read(device())) {
+        qCWarning(LOG_FFPLUGIN) << "FFHandler::read() invalid header";
+        return false;
+    }
+
+    auto img = imageAlloc(header.size(), header.format());
+    if (img.isNull()) {
+        qCWarning(LOG_FFPLUGIN) << "FFHandler::read() error while allocating the image";
+        return false;
+    }
+
+    auto d = device();
+
+    auto size = img.bytesPerLine();
+    for (auto y = 0, h = img.height(); y < h; ++y) {
+        auto line = reinterpret_cast<char*>(img.scanLine(y));
+        if (d->read(line, size) != size) {
+            qCWarning(LOG_FFPLUGIN) << "FFHandler::read() error while reading image scanline";
+            return false;
+        }
+#if Q_LITTLE_ENDIAN
+        for (auto i = 0; i < size; i += 2) {
+            std::swap(line[i], line[i + 1]);
+        }
+#endif
+    }
+
+    img.setColorSpace(QColorSpace(QColorSpace::SRgb));
+
+    *image = img;
+    return true;
+}
+
+bool FFHandler::supportsOption(ImageOption option) const
+{
+    if (option == QImageIOHandler::Size) {
+        return true;
+    }
+    if (option == QImageIOHandler::ImageFormat) {
+        return true;
+    }
+    return false;
+}
+
+QVariant FFHandler::option(ImageOption option) const
+{
+    QVariant v;
+
+    if (option == QImageIOHandler::Size) {
+        auto&& h = d->m_header;
+        if (h.isValid()) {
+            v = QVariant::fromValue(h.size());
+        } else if (auto d = device()) {
+            if (h.peek(d)) {
+                v = QVariant::fromValue(h.size());
+            }
+        }
+    }
+
+    if (option == QImageIOHandler::ImageFormat) {
+        auto&& h = d->m_header;
+        if (h.isValid()) {
+            v = QVariant::fromValue(h.format());
+        } else if (auto d = device()) {
+            if (h.peek(d)) {
+                v = QVariant::fromValue(h.format());
+            }
+        }
+    }
+
+    return v;
+}
+
+QImageIOPlugin::Capabilities FFPlugin::capabilities(QIODevice *device, const QByteArray &format) const
+{
+    if (format == "ff") {
+        return Capabilities(CanRead);
+    }
+    if (!format.isEmpty()) {
+        return {};
+    }
+    if (!device->isOpen()) {
+        return {};
+    }
+
+    Capabilities cap;
+    if (device->isReadable() && FFHandler::canRead(device)) {
+        cap |= CanRead;
+    }
+    return cap;
+}
+
+QImageIOHandler *FFPlugin::create(QIODevice *device, const QByteArray &format) const
+{
+    QImageIOHandler *handler = new FFHandler;
+    handler->setDevice(device);
+    handler->setFormat(format);
+    return handler;
+}
+
+#include "moc_ff_p.cpp"

src/imageformats/ff.json

@@ -0,0 +1,4 @@
+{
+    "Keys": [ "ff" ],
+    "MimeTypes": [ "image/x-farbfeld" ]
+}

src/imageformats/ff_p.h

@@ -0,0 +1,42 @@
+/*
+    This file is part of the KDE project
+    SPDX-FileCopyrightText: 2026 Mirco Miranda <mircomir@outlook.com>
+
+    SPDX-License-Identifier: LGPL-2.0-or-later
+*/
+
+#ifndef KIMG_FF_P_H
+#define KIMG_FF_P_H
+
+#include <QImageIOPlugin>
+#include <QScopedPointer>
+
+class FFHandlerPrivate;
+class FFHandler : public QImageIOHandler
+{
+public:
+    FFHandler();
+
+    bool canRead() const override;
+    bool read(QImage *image) override;
+
+    bool supportsOption(QImageIOHandler::ImageOption option) const override;
+    QVariant option(QImageIOHandler::ImageOption option) const override;
+
+    static bool canRead(QIODevice *device);
+
+private:
+    const QScopedPointer<FFHandlerPrivate> d;
+};
+
+class FFPlugin : public QImageIOPlugin
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QImageIOHandlerFactoryInterface" FILE "ff.json")
+
+public:
+    Capabilities capabilities(QIODevice *device, const QByteArray &format) const override;
+    QImageIOHandler *create(QIODevice *device, const QByteArray &format = QByteArray()) const override;
+};
+
+#endif // KIMG_FF_P_H

src/imageformats/hdr.cpp

@@ -54,10 +54,10 @@ public:
     {
         return width() > 0 && height() > 0 && width() <= HDR_MAX_IMAGE_WIDTH && height() <= HDR_MAX_IMAGE_HEIGHT;
     }
-    qint32 width() const { return(m_size.width()); }
-    qint32 height() const { return(m_size.height()); }
-    QString software() const { return(m_software); }
-    QImageIOHandler::Transformations transformation() const { return(m_transformation); }
+    qint32 width() const { return m_size.width(); }
+    qint32 height() const { return m_size.height(); }
+    QString software() const { return m_software; }
+    QImageIOHandler::Transformations transformation() const { return m_transformation; }
 
     /*!
      * \brief colorSpace
@@ -73,7 +73,7 @@ public:
      * 0.600 0.150 0.060 0.333 0.333" for red, green, blue
      * and white, respectively.
      */
-    QColorSpace colorSpace() const { return(m_colorSpace); }
+    QColorSpace colorSpace() const { return m_colorSpace; }
 
     /*!
      * \brief exposure
@@ -247,7 +247,7 @@ static bool Read_Old_Line(uchar *image, int width, QDataStream &s)
         s >> image[2];
         s >> image[3];
 
-        if (s.atEnd()) {
+        if (s.status() != QDataStream::Ok) {
             return false;
         }
 
@@ -340,20 +340,24 @@ static bool LoadHDR(QDataStream &s, const Header& h, QImage &img)
 
         // determine scanline type
         if ((width < MINELEN) || (MAXELEN < width)) {
-            Read_Old_Line(image, width, s);
+            if (!Read_Old_Line(image, width, s)) {
+                return false;
+            }
             RGBE_To_QRgbLine(image, scanline, h);
             continue;
         }
 
         s >> val;
 
-        if (s.atEnd()) {
-            return true;
+        if (s.status() != QDataStream::Ok) {
+            return false;
         }
 
         if (val != 2) {
             s.device()->ungetChar(val);
-            Read_Old_Line(image, width, s);
+            if (!Read_Old_Line(image, width, s)) {
+                return false;
+            }
             RGBE_To_QRgbLine(image, scanline, h);
             continue;
         }
@@ -362,13 +366,15 @@ static bool LoadHDR(QDataStream &s, const Header& h, QImage &img)
         s >> image[2];
         s >> image[3];
 
-        if (s.atEnd()) {
-            return true;
+        if (s.status() != QDataStream::Ok) {
+            return false;
         }
 
         if ((image[1] != 2) || (image[2] & 128)) {
             image[0] = 2;
-            Read_Old_Line(image + 4, width - 1, s);
+            if (!Read_Old_Line(image + 4, width - 1, s)) {
+                return false;
+            }
             RGBE_To_QRgbLine(image, scanline, h);
             continue;
         }
@@ -382,7 +388,7 @@ static bool LoadHDR(QDataStream &s, const Header& h, QImage &img)
         for (int i = 0, len = int(lineArray.size()); i < 4; i++) {
             for (int j = 0; j < width;) {
                 s >> code;
-                if (s.atEnd()) {
+                if (s.status() != QDataStream::Ok) {
                     qCDebug(HDRPLUGIN) << "Truncated HDR file";
                     return false;
                 }
@@ -510,7 +516,7 @@ bool HDRHandler::canRead(QIODevice *device)
     }
 
     // the .pic taken from official test cases does not start with this string but can be loaded.
-    if(device->peek(11) == "#?RADIANCE\n" || device->peek(7) == "#?RGBE\n") {
+    if (device->peek(11) == "#?RADIANCE\n" || device->peek(7) == "#?RGBE\n") {
         return true;
     }
 

src/imageformats/heif.cpp

@@ -11,6 +11,7 @@
 #include "microexif_p.h"
 #include "util_p.h"
 #include <libheif/heif.h>
+#include <libheif/heif_properties.h>
 
 #include <QColorSpace>
 #include <QLoggingCategory>
@@ -33,6 +34,28 @@ Q_LOGGING_CATEGORY(LOG_HEIFPLUGIN, "kf.imageformats.plugins.heif", QtWarningMsg)
 #define HEIF_MAX_METADATA_SIZE (4 * 1024 * 1024)
 #endif
 
+#ifndef HEIF_DISABLE_QT_TRANSFORMATION
+/*!
+ * HEIF transformations, in addition to rotations and reflections,
+ * also support image cropping. Consequently, the Qt plugin, must
+ * also honor the crop. This define is useful in case of problems:
+ * activating it disables Qt's support for transformations,
+ * delegating them to the HEIF libraries (which will therefore
+ * always apply them regardless of what is requested from Qt).
+ */
+// #define HEIF_DISABLE_QT_TRANSFORMATION
+#endif
+
+/* *** HEIF_MAX_IMAGE_WIDTH and HEIF_MAX_IMAGE_HEIGHT ***
+ * The maximum size in pixel allowed by the plugin.
+ */
+#ifndef HEIF_MAX_IMAGE_WIDTH
+#define HEIF_MAX_IMAGE_WIDTH KIF_64K_IMAGE_PIXEL_LIMIT
+#endif
+#ifndef HEIF_MAX_IMAGE_HEIGHT
+#define HEIF_MAX_IMAGE_HEIGHT HEIF_MAX_IMAGE_WIDTH
+#endif
+
 size_t HEIFHandler::m_initialized_count = 0;
 bool HEIFHandler::m_plugins_queried = false;
 bool HEIFHandler::m_heif_decoder_available = false;
@@ -72,6 +95,7 @@ static struct heif_error heifhandler_write_callback(struct heif_context * /* ctx
 HEIFHandler::HEIFHandler()
     : m_parseState(ParseHeicNotParsed)
     , m_quality(100)
+    , m_orientation(0)
 {
 }
 
@@ -123,15 +147,16 @@ bool HEIFHandler::write(const QImage &image)
         return false;
     }
 
-#if LIBHEIF_HAVE_VERSION(1, 13, 0)
+    if (image.width() >= HEIF_MAX_IMAGE_WIDTH || image.height() >= HEIF_MAX_IMAGE_HEIGHT) {
+        qCWarning(LOG_HEIFPLUGIN) << "Image size invalid:" << image.width() << "x" << image.height();
+        return false;
+    }
+
     startHeifLib();
-#endif
 
     bool success = write_helper(image);
 
-#if LIBHEIF_HAVE_VERSION(1, 13, 0)
     finishHeifLib();
-#endif
 
     return success;
 }
@@ -163,12 +188,10 @@ bool HEIFHandler::write_helper(const QImage &image)
     }
 
     heif_compression_format encoder_codec = heif_compression_HEVC;
-#if LIBHEIF_HAVE_VERSION(1, 13, 0)
     if (format() == "hej2") {
         encoder_codec = heif_compression_JPEG2000;
         save_depth = 8; // for compatibility reasons
     }
-#endif
 
     heif_chroma chroma;
     if (save_depth > 8) {
@@ -325,12 +348,21 @@ bool HEIFHandler::write_helper(const QImage &image)
         }
     }
 
+    if (m_orientation >= 1 && m_orientation <= 8) {
+        // Function available from HEIF v1.14
+        encoder_options->image_orientation = heif_orientation(m_orientation);
+    }
+
     struct heif_image_handle *handle;
     err = heif_context_encode_image(context, h_image, encoder, encoder_options, &handle);
 
     // exif metadata
     if (err.code == heif_error_Ok) {
         auto exif = MicroExif::fromImage(tmpimage);
+        if (m_orientation >= 1 && m_orientation <= 8) {
+            // EXIF orientation must be coherent with HEIF orientation
+            exif.setOrientation(m_orientation);
+        }
         if (!exif.isEmpty()) {
             auto ba = exif.toByteArray();
             err = heif_context_add_exif_metadata(context, handle, ba.constData(), ba.size());
@@ -376,6 +408,74 @@ bool HEIFHandler::write_helper(const QImage &image)
     return true;
 }
 
+bool HEIFHandler::read_orientation_helper(void *heif_handle, const void *heif_ctx)
+{
+    if (heif_handle == nullptr || heif_ctx == nullptr) {
+        return false;
+    }
+    auto handle = reinterpret_cast<heif_image_handle *>(heif_handle);
+    auto ctx = reinterpret_cast<const heif_context *>(heif_ctx);
+    auto item_id = heif_image_handle_get_item_id(handle);
+
+    // get the properties
+    heif_transform_mirror_direction mirror = heif_transform_mirror_direction::heif_transform_mirror_direction_invalid;
+    heif_property_id mir_id;
+    if (heif_item_get_properties_of_type(ctx, item_id, heif_item_property_type_transform_mirror, &mir_id, 1) > 0) {
+        mirror = heif_item_get_property_transform_mirror(ctx, item_id, mir_id);
+        if (mirror == heif_transform_mirror_direction::heif_transform_mirror_direction_invalid)
+            return false;
+    }
+
+    int rotation_ccw = -1;
+    heif_property_id rot_id;
+    if (heif_item_get_properties_of_type(ctx, item_id, heif_item_property_type_transform_rotation, &rot_id, 1) > 0) {
+        rotation_ccw = heif_item_get_property_transform_rotation_ccw(ctx, item_id, rot_id);
+        if (rotation_ccw == -1)
+            return false;
+    }
+
+    if (rotation_ccw == -1 && mirror == heif_transform_mirror_direction::heif_transform_mirror_direction_invalid) {
+        m_orientation = 0;
+    } else if (rotation_ccw == 0 && mirror == heif_transform_mirror_direction::heif_transform_mirror_direction_invalid) {
+        m_orientation = 1;
+    } else if (rotation_ccw <= 0 && mirror == heif_transform_mirror_direction::heif_transform_mirror_direction_horizontal) {
+        m_orientation = 2;
+    } else if (rotation_ccw == 180 && mirror == heif_transform_mirror_direction::heif_transform_mirror_direction_invalid) {
+        m_orientation = 3;
+    } else if (rotation_ccw <= 0 && mirror == heif_transform_mirror_direction::heif_transform_mirror_direction_vertical) {
+        m_orientation = 4;
+    } else if (rotation_ccw == 270 && mirror == heif_transform_mirror_direction::heif_transform_mirror_direction_horizontal) {
+        m_orientation = 5;
+    } else if (rotation_ccw == 270 && mirror == heif_transform_mirror_direction::heif_transform_mirror_direction_invalid) {
+        m_orientation = 6;
+    } else if (rotation_ccw == 270 && mirror == heif_transform_mirror_direction::heif_transform_mirror_direction_vertical) {
+        m_orientation = 7;
+    } else if (rotation_ccw == 90 && mirror == heif_transform_mirror_direction::heif_transform_mirror_direction_invalid) {
+        m_orientation = 8;
+    }
+
+    return true;
+}
+
+bool HEIFHandler::read_crop(void *heif_handle, const void *heif_ctx, const QSize &size, QRect &crop)
+{
+    if (heif_handle == nullptr || heif_ctx == nullptr) {
+        return false;
+    }
+    auto handle = reinterpret_cast<heif_image_handle *>(heif_handle);
+    auto ctx = reinterpret_cast<const heif_context *>(heif_ctx);
+    auto item_id = heif_image_handle_get_item_id(handle);
+
+    heif_property_id crop_id;
+    if (heif_item_get_properties_of_type(ctx, item_id, heif_item_property_type_transform_crop, &crop_id, 1) > 0) {
+        int l = 0, t = 0, r = 0, b = 0;
+        heif_item_get_property_transform_crop_borders(ctx, item_id, crop_id, size.width(), size.height(), &l, &t, &r, &b);
+        crop = QRect(QPoint(t, l), size - QSize(b + t, r + l));
+    }
+
+    return crop.isValid();
+}
+
 bool HEIFHandler::isSupportedBMFFType(const QByteArray &header)
 {
     if (header.size() < 28) {
@@ -456,10 +556,10 @@ QVariant HEIFHandler::option(ImageOption option) const
     switch (option) {
     case Size:
         return m_current_image.size();
-        break;
+    case ImageTransformation:
+        return int(MicroExif::orientationToTransformation(m_orientation));
     default:
         return QVariant();
-        break;
     }
 }
 
@@ -474,6 +574,9 @@ void HEIFHandler::setOption(ImageOption option, const QVariant &value)
             m_quality = 100;
         }
         break;
+    case ImageTransformation:
+        m_orientation = MicroExif::transformationToOrientation(QImageIOHandler::Transformation(value.toUInt()));
+        break;
     default:
         QImageIOHandler::setOption(option, value);
         break;
@@ -482,7 +585,11 @@ void HEIFHandler::setOption(ImageOption option, const QVariant &value)
 
 bool HEIFHandler::supportsOption(ImageOption option) const
 {
-    return option == Quality || option == Size;
+    auto ok = option == Quality || option == Size;
+#ifndef HEIF_DISABLE_QT_TRANSFORMATION
+    ok = ok || option == ImageTransformation;
+#endif
+    return ok;
 }
 
 bool HEIFHandler::ensureParsed() const
@@ -496,15 +603,12 @@ bool HEIFHandler::ensureParsed() const
 
     HEIFHandler *that = const_cast<HEIFHandler *>(this);
 
-#if LIBHEIF_HAVE_VERSION(1, 13, 0)
     startHeifLib();
-#endif
 
     bool success = that->ensureDecoder();
 
-#if LIBHEIF_HAVE_VERSION(1, 13, 0)
     finishHeifLib();
-#endif
+
     return success;
 }
 
@@ -589,16 +693,19 @@ bool HEIFHandler::ensureDecoder()
         return false;
     }
 
+    bool ignore_transformations = false;
     struct heif_decoding_options *decoder_option = heif_decoding_options_alloc();
 
-#if LIBHEIF_HAVE_VERSION(1, 13, 0)
     decoder_option->strict_decoding = 1;
+#ifdef HEIF_DISABLE_QT_TRANSFORMATION
+    decoder_option->ignore_transformations = ignore_transformations;
+#else
+    decoder_option->ignore_transformations = ignore_transformations = read_orientation_helper(handle, ctx);
 #endif
 
     struct heif_image *img = nullptr;
     err = heif_decode_image(handle, &img, heif_colorspace_RGB, chroma, decoder_option);
 
-#if LIBHEIF_HAVE_VERSION(1, 13, 0)
     if (err.code == heif_error_Invalid_input && err.subcode == heif_suberror_Unknown_NCLX_matrix_coefficients && img == nullptr && buffer.contains("Xiaomi")) {
         qCWarning(LOG_HEIFPLUGIN) << "Non-standard HEIF image with invalid matrix_coefficients, probably made by a Xiaomi device!";
 
@@ -606,7 +713,6 @@ bool HEIFHandler::ensureDecoder()
         decoder_option->strict_decoding = 0;
         err = heif_decode_image(handle, &img, heif_colorspace_RGB, chroma, decoder_option);
     }
-#endif
 
     if (decoder_option) {
         heif_decoding_options_free(decoder_option);
@@ -623,14 +729,17 @@ bool HEIFHandler::ensureDecoder()
     const int imageWidth = heif_image_get_width(img, heif_channel_interleaved);
     const int imageHeight = heif_image_get_height(img, heif_channel_interleaved);
 
-    QSize imageSize(imageWidth, imageHeight);
+    QSize imageSize;
+    if (imageWidth < HEIF_MAX_IMAGE_WIDTH && imageHeight < HEIF_MAX_IMAGE_HEIGHT) {
+        imageSize = QSize(imageWidth, imageHeight);
+    }
 
     if (!imageSize.isValid()) {
         heif_image_release(img);
         heif_image_handle_release(handle);
         heif_context_free(ctx);
         m_parseState = ParseHeicError;
-        qCWarning(LOG_HEIFPLUGIN) << "HEIC image size invalid:" << imageSize;
+        qCWarning(LOG_HEIFPLUGIN) << "HEIC image size invalid:" << imageWidth << "x" << imageHeight;
         return false;
     }
 
@@ -852,6 +961,12 @@ bool HEIFHandler::ensureDecoder()
         break;
     }
 
+    if (ignore_transformations) {
+        QRect crop_rect;
+        if (read_crop(handle, ctx, m_current_image.size(), crop_rect))
+            m_current_image = m_current_image.copy(crop_rect);
+    }
+
     heif_color_profile_type profileType = heif_image_handle_get_color_profile_type(handle);
     if (profileType == heif_color_profile_type_prof || profileType == heif_color_profile_type_rICC) {
         size_t rawProfileSize = heif_image_handle_get_raw_color_profile_size(handle);
@@ -1045,34 +1160,27 @@ void HEIFHandler::queryHeifLib()
     QMutexLocker locker(&getHEIFHandlerMutex());
 
     if (!m_plugins_queried) {
-#if LIBHEIF_HAVE_VERSION(1, 13, 0)
         if (m_initialized_count == 0) {
             heif_init(nullptr);
         }
-#endif
 
         m_heif_encoder_available = heif_have_encoder_for_format(heif_compression_HEVC);
         m_heif_decoder_available = heif_have_decoder_for_format(heif_compression_HEVC);
-#if LIBHEIF_HAVE_VERSION(1, 13, 0)
         m_hej2_decoder_available = heif_have_decoder_for_format(heif_compression_JPEG2000);
         m_hej2_encoder_available = heif_have_encoder_for_format(heif_compression_JPEG2000);
-#endif
 #if LIBHEIF_HAVE_VERSION(1, 19, 6)
         m_avci_decoder_available = heif_have_decoder_for_format(heif_compression_AVC);
 #endif
         m_plugins_queried = true;
 
-#if LIBHEIF_HAVE_VERSION(1, 13, 0)
         if (m_initialized_count == 0) {
             heif_deinit();
         }
-#endif
     }
 }
 
 void HEIFHandler::startHeifLib()
 {
-#if LIBHEIF_HAVE_VERSION(1, 13, 0)
     QMutexLocker locker(&getHEIFHandlerMutex());
 
     if (m_initialized_count == 0) {
@@ -1080,12 +1188,10 @@ void HEIFHandler::startHeifLib()
     }
 
     m_initialized_count++;
-#endif
 }
 
 void HEIFHandler::finishHeifLib()
 {
-#if LIBHEIF_HAVE_VERSION(1, 13, 0)
     QMutexLocker locker(&getHEIFHandlerMutex());
 
     if (m_initialized_count == 0) {
@@ -1096,8 +1202,6 @@ void HEIFHandler::finishHeifLib()
     if (m_initialized_count == 0) {
         heif_deinit();
     }
-
-#endif
 }
 
 QMutex &HEIFHandler::getHEIFHandlerMutex()

src/imageformats/heif_p.h

@@ -51,9 +51,24 @@ private:
     ParseHeicState m_parseState;
     int m_quality;
     QImage m_current_image;
+    quint16 m_orientation;
 
     bool write_helper(const QImage &image);
 
+    /*!
+     * \brief heif_orientation_helper
+     * Read the transform_mirror and transform_rotation_ccw properties and set \a m_orientation
+     * \return True on success, otherwise false.
+     */
+    bool read_orientation_helper(void *heif_handle, const void *heif_ctx);
+
+    /*!
+     * \brief read_crop
+     * Read the crop information.
+     * \return True on success, otherwise false.
+     */
+    bool read_crop(void *heif_handle, const void *heif_ctx, const QSize& size, QRect &crop);
+
     static void startHeifLib();
     static void finishHeifLib();
     static void queryHeifLib();

src/imageformats/iff.cpp

@@ -607,6 +607,69 @@ bool IFFHandler::readRGFXImage(QImage *image)
     return true;
 }
 
+bool IFFHandler::readDEEPImage(QImage *image)
+{
+    auto forms = d->searchForms<FORMChunk>();
+    if (forms.isEmpty()) {
+        return false;
+    }
+    auto cin = qBound(0, currentImageNumber(), int(forms.size() - 1));
+    auto &&form = forms.at(cin);
+
+    // show the first one (I don't have a sample with many images)
+    auto headers = IFFChunk::searchT<DGBLChunk>(form);
+    if (headers.isEmpty()) {
+        return false;
+    }
+    // create the image
+    auto &&header = headers.first();
+    auto size = header->size();
+    auto locs = IFFChunk::searchT<DLOCChunk>(form);
+    if (!locs.isEmpty()) {
+        size = locs.first()->size();
+    }
+    auto img = imageAlloc(size, form->format());
+    if (img.isNull()) {
+        qCWarning(LOG_IFFPLUGIN) << "IFFHandler::readDEEPImage(): error while allocating the image";
+        return false;
+    }
+
+    // decoding the image
+    auto bodies = IFFChunk::searchT<DBODChunk>(form);
+    if (bodies.isEmpty()) {
+        img.fill(0);
+    } else {
+        auto &&body = bodies.first();
+        if (!body->resetStrideRead(device())) {
+            qCWarning(LOG_IFFPLUGIN) << "IFFHandler::readDEEPImage(): error while reading image data";
+            return false;
+        }
+        auto pels = IFFChunk::searchT<DPELChunk>(form);
+        if (pels.isEmpty()) {
+            // DPEL is used to calculate the image format, so here should not be empty.
+            return false;
+        }
+        auto tvdcs = IFFChunk::searchT<TVDCChunk>(form);
+        for (auto y = 0, h = img.height(); y < h; ++y) {
+            auto line = reinterpret_cast<char*>(img.scanLine(y));
+            auto ba = body->strideRead(device(), y, header, pels.first(),
+                                       locs.isEmpty() ? nullptr : locs.first(),
+                                       tvdcs.isEmpty() ? nullptr : tvdcs.first());
+            if (ba.isEmpty()) {
+                qCWarning(LOG_IFFPLUGIN) << "IFFHandler::readDEEPImage(): error while reading image scanline";
+                return false;
+            }
+            memcpy(line, ba.constData(), std::min(img.bytesPerLine(), ba.size()));
+        }
+    }
+
+    // set metadata (including image resolution)
+    addMetadata(img, form);
+
+    *image = img;
+    return true;
+}
+
 bool IFFHandler::read(QImage *image)
 {
     if (!d->readStructure(device())) {
@@ -630,6 +693,10 @@ bool IFFHandler::read(QImage *image)
         return true;
     }
 
+    if (readDEEPImage(image)) {
+        return true;
+    }
+
     qCWarning(LOG_IFFPLUGIN) << "IFFHandler::read(): no supported image found";
     return false;
 }

src/imageformats/iff_p.h

@@ -39,6 +39,8 @@ private:
 
     bool readRGFXImage(QImage *image);
 
+    bool readDEEPImage(QImage *image);
+
 private:
     const QScopedPointer<IFFHandlerPrivate> d;
 };

src/imageformats/jxr.cpp

@@ -35,44 +35,47 @@
 #include <cstring>
 
 Q_DECLARE_LOGGING_CATEGORY(LOG_JXRPLUGIN)
+
+#ifdef QT_DEBUG
+Q_LOGGING_CATEGORY(LOG_JXRPLUGIN, "kf.imageformats.plugins.jxr", QtDebugMsg)
+#else
 Q_LOGGING_CATEGORY(LOG_JXRPLUGIN, "kf.imageformats.plugins.jxr", QtWarningMsg)
+#endif
 
 /*!
- * Support for float images
+ * \brief JXR_DENY_FLOAT_IMAGE
  *
- * NOTE: Float images have values greater than 1 so they need an additional in place conversion.
+ * When defined, disables the support for float images.
+ * \note Float images have values greater than 1 so they need an additional in place conversion.
  */
-// #define JXR_DENY_FLOAT_IMAGE
+#ifndef JXR_DENY_FLOAT_IMAGE
+// #define JXR_DENY_FLOAT_IMAGE // default commented
+#endif
 
 /*!
- * Remove the needs of additional memory by disabling the conversion between
+ * \brief JXR_DISABLE_DEPTH_CONVERSION
+ *
+ * When defined, removes the needs of additional memory by disabling the conversion between
  * different color depths (e.g. RGBA64bpp to RGBA32bpp).
- *
- * NOTE: Leaving deptch conversion enabled (default) ensures maximum read compatibility.
+ * \note Leaving depth conversion enabled (default) ensures maximum read compatibility.
  */
+#ifndef JXR_DISABLE_DEPTH_CONVERSION
 // #define JXR_DISABLE_DEPTH_CONVERSION // default commented
+#endif
 
 /*!
+ * \brief JXR_DISABLE_BGRA_HACK
+ *
+ * When defined, disables Windows compatibility for BGRs.
+ *
  * Windows displays and opens JXR files correctly out of the box. Unfortunately it doesn't
  * seem to open (P)RGBA @32bpp files as it only wants (P)BGRA32bpp files (a format not supported by Qt).
- * Only for this format an hack is activated to guarantee total compatibility of the plugin with Windows.
+ * Only for this format, an hack is activated to guarantee total compatibility of the plugin with Windows,
+ * at the cost of some overhead.
  */
+#ifndef JXR_DISABLE_BGRA_HACK
 // #define JXR_DISABLE_BGRA_HACK // default commented
-
-/*!
- * 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.
- *
- * - ERR PKImageDecode_GetXMPMetadata_WMP(PKImageDecode *pID, U8 *pbXMPMetadata, U32 *pcbXMPMetadata);
- * - ERR PKImageDecode_GetEXIFMetadata_WMP(PKImageDecode *pID, U8 *pbEXIFMetadata, U32 *pcbEXIFMetadata);
- * - ERR PKImageDecode_GetGPSInfoMetadata_WMP(PKImageDecode *pID, U8 *pbGPSInfoMetadata, U32 *pcbGPSInfoMetadata);
- * - ERR PKImageDecode_GetIPTCNAAMetadata_WMP(PKImageDecode *pID, U8 *pbIPTCNAAMetadata, U32 *pcbIPTCNAAMetadata);
- * - ERR PKImageDecode_GetPhotoshopMetadata_WMP(PKImageDecode *pID, U8 *pbPhotoshopMetadata, U32 *pcbPhotoshopMetadata);
- *
- * As a result, their use is disabled by default. It is possible to activate their use by defining the
- * JXR_ENABLE_ADVANCED_METADATA preprocessor directive
- */
-
-// #define JXR_ENABLE_ADVANCED_METADATA
+#endif
 
 /* *** JXR_MAX_IMAGE_WIDTH and JXR_MAX_IMAGE_HEIGHT ***
  * The maximum size in pixel allowed by the plugin.
@@ -84,13 +87,25 @@ Q_LOGGING_CATEGORY(LOG_JXRPLUGIN, "kf.imageformats.plugins.jxr", QtWarningMsg)
 #define JXR_MAX_IMAGE_HEIGHT JXR_MAX_IMAGE_WIDTH
 #endif
 
-#ifndef JXR_MAX_METADATA_SIZE
 /*!
- * XMP and EXIF maximum size.
+ * \brief JXR_MAX_METADATA_SIZE
+ *
+ * XMP and EXIF maximum size in bytes.
  */
+#ifndef JXR_MAX_METADATA_SIZE
 #define JXR_MAX_METADATA_SIZE (4 * 1024 * 1024)
 #endif
 
+/*
+ * Compatibility with older libraries
+ */
+#ifndef JXR_MAKEVERSION
+#define JXR_MAKEVERSION(major, minor, patch) (((major) << 16) | ((minor) << 8) | (patch))
+#endif
+#ifndef JXR_VERSION
+#define JXR_VERSION JXR_MAKEVERSION(1, 1, 0)
+#endif
+
 class JXRHandlerPrivate : public QSharedData
 {
 private:
@@ -112,28 +127,35 @@ public:
         , m_transformations(QImageIOHandler::TransformationNone)
     {
         m_tempDir = QSharedPointer<QTemporaryDir>(new QTemporaryDir);
-        if (PKCreateFactory(&pFactory, PK_SDK_VERSION) == WMP_errSuccess) {
-            PKCreateCodecFactory(&pCodecFactory, WMP_SDK_VERSION);
-        }
-        if (pFactory == nullptr || pCodecFactory == nullptr) {
-            qCWarning(LOG_JXRPLUGIN) << "JXRHandlerPrivate::JXRHandlerPrivate() initialization error of JXR library!";
+        if (auto err = PKCreateFactory(&pFactory, PK_SDK_VERSION)) {
+            qCCritical(LOG_JXRPLUGIN) << "JXRHandlerPrivate::JXRHandlerPrivate() error while initializing the JXR factory:" << err;
+        } else if (auto err = PKCreateCodecFactory(&pCodecFactory, WMP_SDK_VERSION)) {
+            qCCritical(LOG_JXRPLUGIN) << "JXRHandlerPrivate::JXRHandlerPrivate() error while initializing the JXR codec factory:" << err;
         }
     }
     JXRHandlerPrivate(const JXRHandlerPrivate &other) = default;
 
     ~JXRHandlerPrivate()
     {
-        if (pCodecFactory) {
-            PKCreateCodecFactory_Release(&pCodecFactory);
-        }
-        if (pFactory) {
-            PKCreateFactory_Release(&pFactory);
-        }
         if (pDecoder) {
-            PKImageDecode_Release(&pDecoder);
+            if (auto err = pDecoder->Release(&pDecoder)) {
+                qCWarning(LOG_JXRPLUGIN) << "JXRHandlerPrivate::JXRHandlerPrivate() error while releasing the decoder:" << err;
+            }
         }
         if (pEncoder) {
-            PKImageEncode_Release(&pEncoder);
+            if (auto err = pEncoder->Release(&pEncoder)) {
+                qCWarning(LOG_JXRPLUGIN) << "JXRHandlerPrivate::JXRHandlerPrivate() error while releasing the encoder:" << err;
+            }
+        }
+        if (pCodecFactory) {
+            if (auto err = pCodecFactory->Release(&pCodecFactory)) {
+                qCWarning(LOG_JXRPLUGIN) << "JXRHandlerPrivate::JXRHandlerPrivate() error while releasing the codec factory:" << err;
+            }
+        }
+        if (pFactory) {
+            if (auto err = pFactory->Release(&pFactory)) {
+                qCWarning(LOG_JXRPLUGIN) << "JXRHandlerPrivate::JXRHandlerPrivate() error while releasing the factory:" << err;
+            }
         }
     }
 
@@ -278,8 +300,12 @@ public:
     PKPixelFormatGUID jxrFormat() const
     {
         PKPixelFormatGUID pixelFormatGUID = GUID_PKPixelFormatUndefined;
-        if (pDecoder) {
-            pDecoder->GetPixelFormat(pDecoder, &pixelFormatGUID);
+        if (pDecoder == nullptr) {
+            return pixelFormatGUID;
+        }
+        if (auto err = pDecoder->GetPixelFormat(pDecoder, &pixelFormatGUID)) {
+            qCCritical(LOG_JXRPLUGIN) << "JXRHandlerPrivate::jxrFormat() error while getting pixel format:" << err;
+            return GUID_PKPixelFormatUndefined;
         }
         return pixelFormatGUID;
     }
@@ -303,6 +329,12 @@ public:
             return qtFormat;
         }
 
+        // *** MCH could be RGB, CMYK ***
+        qtFormat = multichannelFormat(jxrfmt, colorSpace());
+        if (qtFormat != QImage::Format_Invalid) {
+            return qtFormat;
+        }
+
         // *** CONVERSION WITH THE SAME DEPTH ***
         // IMPORTANT: For supported conversions see JXRGluePFC.c
 
@@ -393,17 +425,20 @@ public:
      */
     QSize imageSize() const
     {
-        if (pDecoder) {
-            qint32 w, h;
-            pDecoder->GetSize(pDecoder, &w, &h);
-            if (w > JXR_MAX_IMAGE_WIDTH || h > JXR_MAX_IMAGE_HEIGHT || w < 1 || h < 1) {
-                qCCritical(LOG_JXRPLUGIN) << "JXRHandlerPrivate::imageSize() Maximum image size is limited to" << JXR_MAX_IMAGE_WIDTH << "x"
-                                          << JXR_MAX_IMAGE_HEIGHT << "pixels";
-                return {};
-            }
-            return QSize(w, h);
+        if (pDecoder == nullptr) {
+            return {};
         }
-        return {};
+        qint32 w = 0, h = 0;
+        if (auto err = pDecoder->GetSize(pDecoder, &w, &h)) {
+            qCCritical(LOG_JXRPLUGIN) << "JXRHandlerPrivate::imageSize() error while getting the image size:" << err;
+            return {};
+        }
+        if (w > JXR_MAX_IMAGE_WIDTH || h > JXR_MAX_IMAGE_HEIGHT || w < 1 || h < 1) {
+            qCCritical(LOG_JXRPLUGIN) << "JXRHandlerPrivate::imageSize() Maximum image size is limited to" << JXR_MAX_IMAGE_WIDTH << "x"
+                                      << JXR_MAX_IMAGE_HEIGHT << "pixels";
+            return {};
+        }
+        return QSize(w, h);
     }
 
     /*!
@@ -416,8 +451,8 @@ public:
         if (pDecoder == nullptr) {
             return cs;
         }
-        quint32 size;
-        if (!pDecoder->GetColorContext(pDecoder, nullptr, &size) && size) {
+        quint32 size = 0;
+        if (!pDecoder->GetColorContext(pDecoder, nullptr, &size) && size > 0 && size < kMaxQVectorSize) {
             QByteArray ba(size, 0);
             if (!pDecoder->GetColorContext(pDecoder, reinterpret_cast<quint8 *>(ba.data()), &size)) {
                 cs = QColorSpace::fromIccProfile(ba);
@@ -436,8 +471,8 @@ public:
         if (pDecoder == nullptr) {
             return xmp;
         }
-#ifdef JXR_ENABLE_ADVANCED_METADATA
-        quint32 size;
+#if JXR_VERSION >= JXR_MAKEVERSION(1, 4, 0)
+        quint32 size = 0;
         if (!PKImageDecode_GetXMPMetadata_WMP(pDecoder, nullptr, &size) && size > 0 && size < JXR_MAX_METADATA_SIZE) {
             QByteArray ba(size, 0);
             if (!PKImageDecode_GetXMPMetadata_WMP(pDecoder, reinterpret_cast<quint8 *>(ba.data()), &size)) {
@@ -498,7 +533,7 @@ public:
         }
         auto host = hostComputer();
         if (!host.isEmpty()) {
-            image.setText(QStringLiteral(META_KEY_HOSTCOMPUTER), capt);
+            image.setText(QStringLiteral(META_KEY_HOSTCOMPUTER), host);
         }
         auto docn = documentName();
         if (!docn.isEmpty()) {
@@ -556,7 +591,11 @@ public:
         if (device == nullptr || pEncoder == nullptr) {
             return false;
         }
-        if (auto err = PKImageEncode_Release(&pEncoder)) {
+        if (auto err = pEncoder->Terminate(pEncoder)) {
+            qCWarning(LOG_JXRPLUGIN) << "JXRHandlerPrivate::finalizeWriting() error while terminating the encoder:" << err;
+            return false;
+        }
+        if (auto err = pEncoder->Release(&pEncoder)) {
             qCWarning(LOG_JXRPLUGIN) << "JXRHandlerPrivate::finalizeWriting() error while releasing the encoder:" << err;
             return false;
         }
@@ -796,6 +835,47 @@ public:
         return GUID_PKPixelFormatUndefined;
     }
 
+    /*!
+     * \brief multichannelFormat
+     * I can only decide how to interpret multichannels by checking the color profile.
+     * If it's not present, I assume CMYK for 4 channels and RGB for 3 channels (like
+     * Windows does).
+     * \param jxrFormat Format to be converted.
+     * \param cs The color space of the image.
+     * \return A valid Qt format or QImage::Format_Invalid if there is no match
+     */
+    static QImage::Format multichannelFormat(const PKPixelFormatGUID &jxrFormat, const QColorSpace& cs)
+    {
+        auto model = QColorSpace::ColorModel::Undefined;
+        if (cs.isValid()) {
+            model = cs.colorModel();
+        } else if (!cs.iccProfile().isEmpty()) {
+            model = QColorSpace::ColorModel::Gray; // means invalid
+        }
+
+        if (IsEqualGUID(GUID_PKPixelFormat24bpp3Channels, jxrFormat)) {
+            if (model == QColorSpace::ColorModel::Rgb || model == QColorSpace::ColorModel::Undefined)
+                return QImage::Format_RGB888;
+        }
+
+        if (IsEqualGUID(GUID_PKPixelFormat32bpp4Channels, jxrFormat)) {
+            if (model == QColorSpace::ColorModel::Cmyk || model == QColorSpace::ColorModel::Undefined)
+                return QImage::Format_CMYK8888;
+        }
+
+        if (IsEqualGUID(GUID_PKPixelFormat32bpp3ChannelsAlpha, jxrFormat)) {
+            if (model == QColorSpace::ColorModel::Rgb || model == QColorSpace::ColorModel::Undefined)
+                return QImage::Format_RGBA8888;
+        }
+
+        if (IsEqualGUID(GUID_PKPixelFormat64bpp3ChannelsAlpha, jxrFormat)) {
+            if (model == QColorSpace::ColorModel::Rgb || model == QColorSpace::ColorModel::Undefined)
+                return QImage::Format_RGBA64;
+        }
+
+        return QImage::Format_Invalid;
+    }
+
 private:
     static QList<std::pair<QImage::Format, PKPixelFormatGUID>> exactMatchingFormats()
     {
@@ -893,6 +973,12 @@ private:
         if (pCodecFactory == nullptr) {
             return false;
         }
+
+#if JXR_VERSION >= JXR_MAKEVERSION(1, 4, 0)
+        // Prevents the library from making single large memory allocations.
+        // Note that it may still exceed it with multiple allocations.
+        PKAlloc_SetLimit(size_t(QImageReader::allocationLimit()) * 1024 * 1024);
+#endif
         if (auto err = pCodecFactory->CreateDecoderFromFile(qUtf8Printable(fileName()), &pDecoder)) {
             qCWarning(LOG_JXRPLUGIN) << "JXRHandlerPrivate::initDecoder() unable to create decoder:" << err;
             return false;
@@ -926,7 +1012,7 @@ private:
             return true;
         }
 
-        DESCRIPTIVEMETADATA meta;
+        DESCRIPTIVEMETADATA meta = {};
         if (pDecoder->GetDescriptiveMetadata(pDecoder, &meta)) {
             return false;
         }
@@ -961,13 +1047,13 @@ bool JXRHandler::read(QImage *outImage)
 
     PKPixelFormatGUID convFmt;
     auto imageFmt = d->imageFormat(&convFmt);
-    auto img = imageAlloc(d->imageSize(), imageFmt);
+    auto img = imageAlloc(d->imageSize(), imageFmt, ImageInitToZero::FPOnly);
     if (img.isNull()) {
         return false;
     }
 
     // resolution
-    float hres, vres;
+    float hres = 0, vres = 0;
     if (auto err = d->pDecoder->GetResolution(d->pDecoder, &hres, &vres)) {
         qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() error while reading resolution:" << err;
     } else {
@@ -999,14 +1085,18 @@ bool JXRHandler::read(QImage *outImage)
             return false;
         }
         if (auto err = pConverter->Initialize(pConverter, d->pDecoder, nullptr, convFmt)) {
-            PKFormatConverter_Release(&pConverter);
             qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() unable to initialize the converter:" << err;
+            if (auto err = pConverter->Release(&pConverter)) {
+                qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() error while releasing the converter:" << err;
+            }
             return false;
         }
         if (d->pDecoder->WMP.wmiI.cBitsPerUnit == size_t(img.depth())) { // in place conversion
             if (auto err = pConverter->Copy(pConverter, &rect, img.bits(), img.bytesPerLine())) {
-                PKFormatConverter_Release(&pConverter);
                 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() unable to copy converted data:" << err;
+                if (auto err = pConverter->Release(&pConverter)) {
+                    qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() error while releasing the converter:" << err;
+                }
                 return false;
             }
         } else { // additional buffer needed
@@ -1015,19 +1105,26 @@ bool JXRHandler::read(QImage *outImage)
             qint64 limit = QImageReader::allocationLimit();
             if (limit && (buffSize + img.sizeInBytes()) > limit * 1024 * 1024) {
                 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() unable to covert due to allocation limit set:" << limit << "MiB";
+                if (auto err = pConverter->Release(&pConverter)) {
+                    qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() error while releasing the converter:" << err;
+                }
                 return false;
             }
             QVector<quint8> ba(buffSize);
             if (auto err = pConverter->Copy(pConverter, &rect, ba.data(), convStrideSize)) {
-                PKFormatConverter_Release(&pConverter);
                 qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() unable to copy converted data:" << err;
+                if (auto err = pConverter->Release(&pConverter)) {
+                    qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() error while releasing the converter:" << err;
+                }
                 return false;
             }
             for (qint32 y = 0, h = img.height(); y < h; ++y) {
                 std::memcpy(img.scanLine(y), ba.data() + convStrideSize * y, (std::min)(convStrideSize, qint64(img.bytesPerLine())));
             }
         }
-        PKFormatConverter_Release(&pConverter);
+        if (auto err = pConverter->Release(&pConverter)) {
+            qCWarning(LOG_JXRPLUGIN) << "JXRHandler::read() error while releasing the converter:" << err;
+        }
     }
 
     // Metadata (e.g.: icc profile, description, etc...)

src/imageformats/microexif.cpp

@@ -36,17 +36,26 @@
 #define TIFF_VAL_URES_CENTIMETER 3
 
 // EXIF 3 specs
+#define EXIF_EXPOSURETIME 0x829A
+#define EXIF_FNUMBER 0x829D
 #define EXIF_EXIFIFD 0x8769
+#define EXIF_EXPOSUREPROGRAM 0x8822
 #define EXIF_GPSIFD 0x8825
+#define EXIF_ISOSPEEDRATINGS 0x8827
 #define EXIF_EXIFVERSION 0x9000
 #define EXIF_DATETIMEORIGINAL 0x9003
 #define EXIF_DATETIMEDIGITIZED 0x9004
 #define EXIF_OFFSETTIME 0x9010
 #define EXIF_OFFSETTIMEORIGINAL 0x9011
 #define EXIF_OFFSETTIMEDIGITIZED 0x9012
+#define EXIF_FLASH 0x9209
+#define EXIF_FOCALLENGTH 0x920A
 #define EXIF_COLORSPACE 0xA001
 #define EXIF_PIXELXDIM 0xA002
 #define EXIF_PIXELYDIM 0xA003
+#define EXIF_EXPOSUREMODE 0xA402
+#define EXIF_WHITEBALANCE 0xA403
+#define EXIF_DIGITALZOOMRATIO 0xA404
 #define EXIF_IMAGEUNIQUEID 0xA420
 #define EXIF_BODYSERIALNUMBER 0xA431
 #define EXIF_LENSMAKE 0xA433
@@ -64,6 +73,8 @@
 #define GPS_LONGITUDE 4
 #define GPS_ALTITUDEREF 5
 #define GPS_ALTITUDE 6
+#define GPS_SPEEDREF 12
+#define GPS_SPEED 13
 #define GPS_IMGDIRECTIONREF 16
 #define GPS_IMGDIRECTION 17
 #define EXIF_TAG_VALUE(n, byteSize) (((n) << 6) | ((byteSize) & 0x3F))
@@ -123,16 +134,25 @@ static const KnownTags staticTagTypes = {
     TagInfo(TIFF_ARTIST, ExifTagType::Utf8),
     TagInfo(TIFF_DATETIME, ExifTagType::Ascii),
     TagInfo(TIFF_COPYRIGHT, ExifTagType::Utf8),
+    TagInfo(EXIF_EXPOSURETIME, ExifTagType::Rational),
+    TagInfo(EXIF_FNUMBER, ExifTagType::Rational),
     TagInfo(EXIF_EXIFIFD, ExifTagType::Long),
+    TagInfo(EXIF_EXPOSUREPROGRAM, ExifTagType::Short),
     TagInfo(EXIF_GPSIFD, ExifTagType::Long),
+    TagInfo(EXIF_ISOSPEEDRATINGS, ExifTagType::Short),
     TagInfo(EXIF_DATETIMEORIGINAL, ExifTagType::Ascii),
-    TagInfo(EXIF_OFFSETTIMEDIGITIZED, ExifTagType::Ascii),
+    TagInfo(EXIF_DATETIMEDIGITIZED, ExifTagType::Ascii),
     TagInfo(EXIF_OFFSETTIME, ExifTagType::Ascii),
     TagInfo(EXIF_OFFSETTIMEORIGINAL, ExifTagType::Ascii),
     TagInfo(EXIF_OFFSETTIMEDIGITIZED, ExifTagType::Ascii),
+    TagInfo(EXIF_FLASH, ExifTagType::Short),
+    TagInfo(EXIF_FOCALLENGTH, ExifTagType::Rational),
     TagInfo(EXIF_COLORSPACE, ExifTagType::Short),
     TagInfo(EXIF_PIXELXDIM, ExifTagType::Long),
     TagInfo(EXIF_PIXELYDIM, ExifTagType::Long),
+    TagInfo(EXIF_EXPOSUREMODE, ExifTagType::Short),
+    TagInfo(EXIF_WHITEBALANCE, ExifTagType::Short),
+    TagInfo(EXIF_DIGITALZOOMRATIO, ExifTagType::Rational),
     TagInfo(EXIF_IMAGEUNIQUEID, ExifTagType::Ascii),
     TagInfo(EXIF_BODYSERIALNUMBER, ExifTagType::Ascii),
     TagInfo(EXIF_LENSMAKE, ExifTagType::Utf8),
@@ -155,6 +175,8 @@ static const KnownTags staticGpsTagTypes = {
     TagInfo(GPS_LONGITUDE, ExifTagType::Rational),
     TagInfo(GPS_ALTITUDEREF, ExifTagType::Byte),
     TagInfo(GPS_ALTITUDE, ExifTagType::Rational),
+    TagInfo(GPS_SPEEDREF, ExifTagType::Ascii),
+    TagInfo(GPS_SPEED, ExifTagType::Rational),
     TagInfo(GPS_IMGDIRECTIONREF, ExifTagType::Ascii),
     TagInfo(GPS_IMGDIRECTION, ExifTagType::Rational)
 };
@@ -317,7 +339,7 @@ static void writeList(QDataStream &ds, const QVariant &value)
 inline qint32 rationalPrecision(double v)
 {
     v = qAbs(v);
-    return 8 - qBound(0, v < 1 ? 8 : int(std::log10(v)), 8);
+    return v < 1 ? 8 : 8 - qBound(0, int(std::log10(v)), 8);
 }
 
 template<class T>
@@ -722,7 +744,42 @@ void MicroExif::setOrientation(quint16 orient)
 
 QImageIOHandler::Transformation MicroExif::transformation() const
 {
-    switch (orientation()) {
+    return orientationToTransformation(orientation());
+}
+
+void MicroExif::setTransformation(const QImageIOHandler::Transformation &t)
+{
+    setOrientation(transformationToOrientation(t));
+}
+
+quint16 MicroExif::transformationToOrientation(const QImageIOHandler::Transformation &t)
+{
+    switch (t) {
+    case QImageIOHandler::TransformationNone:
+        return 1;
+    case QImageIOHandler::TransformationMirror:
+        return 2;
+    case QImageIOHandler::TransformationRotate180:
+        return 3;
+    case QImageIOHandler::TransformationFlip:
+        return 4;
+    case QImageIOHandler::TransformationFlipAndRotate90:
+        return 5;
+    case QImageIOHandler::TransformationRotate90:
+        return 6;
+    case QImageIOHandler::TransformationMirrorAndRotate90:
+        return 7;
+    case QImageIOHandler::TransformationRotate270:
+        return 8;
+    default:
+        break;
+    }
+    return 0; // no orientation set
+}
+
+QImageIOHandler::Transformation MicroExif::orientationToTransformation(quint16 o)
+{
+    switch (o) {
     case 1:
         return QImageIOHandler::TransformationNone;
     case 2:
@@ -745,39 +802,6 @@ QImageIOHandler::Transformation MicroExif::transformation() const
     return QImageIOHandler::TransformationNone;
 }
 
-void MicroExif::setTransformation(const QImageIOHandler::Transformation &t)
-{
-    switch (t) {
-    case QImageIOHandler::TransformationNone:
-        setOrientation(1);
-        break;
-    case QImageIOHandler::TransformationMirror:
-        setOrientation(2);
-        break;
-    case QImageIOHandler::TransformationRotate180:
-        setOrientation(3);
-        break;
-    case QImageIOHandler::TransformationFlip:
-        setOrientation(4);
-        break;
-    case QImageIOHandler::TransformationFlipAndRotate90:
-        setOrientation(5);
-        break;
-    case QImageIOHandler::TransformationRotate90:
-        setOrientation(6);
-        break;
-    case QImageIOHandler::TransformationMirrorAndRotate90:
-        setOrientation(7);
-        break;
-    case QImageIOHandler::TransformationRotate270:
-        setOrientation(8);
-        break;
-    default:
-        break;
-    }
-    setOrientation(0); // no orientation set
-}
-
 QString MicroExif::software() const
 {
     return tiffString(TIFF_SOFTWARE);
@@ -884,7 +908,7 @@ QDateTime MicroExif::dateTime() const
     auto ofTag = exifString(EXIF_OFFSETTIME);
     if (dt.isValid() && !ofTag.isEmpty())
         dt.setTimeZone(QTimeZone::fromSecondsAheadOfUtc(timeOffset(ofTag) * 60));
-    return(dt);
+    return dt;
 }
 
 void MicroExif::setDateTime(const QDateTime &dt)
@@ -904,7 +928,7 @@ QDateTime MicroExif::dateTimeOriginal() const
     auto ofTag = exifString(EXIF_OFFSETTIMEORIGINAL);
     if (dt.isValid() && !ofTag.isEmpty())
         dt.setTimeZone(QTimeZone::fromSecondsAheadOfUtc(timeOffset(ofTag) * 60));
-    return(dt);
+    return dt;
 }
 
 void MicroExif::setDateTimeOriginal(const QDateTime &dt)
@@ -924,7 +948,7 @@ QDateTime MicroExif::dateTimeDigitized() const
     auto ofTag = exifString(EXIF_OFFSETTIMEDIGITIZED);
     if (dt.isValid() && !ofTag.isEmpty())
         dt.setTimeZone(QTimeZone::fromSecondsAheadOfUtc(timeOffset(ofTag) * 60));
-    return(dt);
+    return dt;
 }
 
 void MicroExif::setDateTimeDigitized(const QDateTime &dt)
@@ -966,6 +990,138 @@ void MicroExif::setUniqueId(const QUuid &uuid)
         setExifString(EXIF_IMAGEUNIQUEID, uuid.toString(QUuid::WithoutBraces).replace(QStringLiteral("-"), QString()));
 }
 
+double MicroExif::digitalZoomRatio() const
+{
+    if (!m_exifTags.contains(EXIF_DIGITALZOOMRATIO))
+        return qQNaN();
+    return m_exifTags.value(EXIF_DIGITALZOOMRATIO).toDouble();
+
+}
+
+void MicroExif::setDigitalZoomRatio(double zoom)
+{
+    if (qIsNaN(zoom))
+        m_exifTags.remove(EXIF_DIGITALZOOMRATIO);
+    else
+        m_exifTags.insert(EXIF_DIGITALZOOMRATIO, zoom);
+}
+
+quint16 MicroExif::isoSpeedRatings() const
+{
+    return quint16(m_exifTags.value(EXIF_ISOSPEEDRATINGS).toUInt());
+}
+
+void MicroExif::setIsoSpeedRatings(quint16 iso)
+{
+    if (iso == 0)
+        m_exifTags.remove(EXIF_ISOSPEEDRATINGS);
+    else
+        m_exifTags.insert(EXIF_ISOSPEEDRATINGS, iso);
+}
+
+ExposureMode MicroExif::exposureMode() const
+{
+    auto ok = false;
+    auto v = m_exifTags.value(EXIF_EXPOSUREMODE).toUInt(&ok);
+    return ok ? ExposureMode(v) : ExposureMode::NotSet;
+}
+
+void MicroExif::setExposureMode(const ExposureMode &em)
+{
+    if (em == ExposureMode::NotSet)
+        m_exifTags.remove(EXIF_EXPOSUREMODE);
+    else
+        m_exifTags.insert(EXIF_EXPOSUREMODE, quint16(em));
+}
+
+ExposureProgram MicroExif::exposureProgram() const
+{
+    auto ok = false;
+    auto v = m_exifTags.value(EXIF_EXPOSUREPROGRAM).toUInt(&ok);
+    return ok ? ExposureProgram(v) : ExposureProgram::NotSet;
+}
+
+void MicroExif::setExposureProgram(const ExposureProgram &ep)
+{
+    if (ep == ExposureProgram::NotSet)
+        m_exifTags.remove(EXIF_EXPOSUREPROGRAM);
+    else
+        m_exifTags.insert(EXIF_EXPOSUREPROGRAM, quint16(ep));
+}
+
+double MicroExif::exposureTime() const
+{
+    if (!m_exifTags.contains(EXIF_EXPOSURETIME))
+        return qQNaN();
+    return m_exifTags.value(EXIF_EXPOSURETIME).toDouble();
+}
+
+void MicroExif::setExposureTime(double et)
+{
+    if (qIsNaN(et))
+        m_exifTags.remove(EXIF_EXPOSURETIME);
+    else
+        m_exifTags.insert(EXIF_EXPOSURETIME, et);
+}
+
+double MicroExif::fNumber() const
+{
+    if (!m_exifTags.contains(EXIF_FNUMBER))
+        return qQNaN();
+    return m_exifTags.value(EXIF_FNUMBER).toDouble();
+}
+
+void MicroExif::setFNumber(double f)
+{
+    if (qIsNaN(f))
+        m_exifTags.remove(EXIF_FNUMBER);
+    else
+        m_exifTags.insert(EXIF_FNUMBER, f);
+}
+
+double MicroExif::focalLength() const
+{
+    if (!m_exifTags.contains(EXIF_FOCALLENGTH))
+        return qQNaN();
+    return m_exifTags.value(EXIF_FOCALLENGTH).toDouble();
+}
+
+void MicroExif::setFocalLength(double fl)
+{
+    if (qIsNaN(fl))
+        m_exifTags.remove(EXIF_FOCALLENGTH);
+    else
+        m_exifTags.insert(EXIF_FOCALLENGTH, fl);
+}
+
+FlashFlags MicroExif::flash() const
+{
+    return FlashFlags(m_exifTags.value(EXIF_FLASH).toUInt());
+}
+
+void MicroExif::setFlash(const FlashFlags &flash)
+{
+    if (flash == Flash::NotSet)
+        m_exifTags.remove(EXIF_FLASH);
+    else
+        m_exifTags.insert(EXIF_FLASH, quint16(flash));
+}
+
+WhiteBalance MicroExif::whiteBalance() const
+{
+    auto ok = false;
+    auto v = m_exifTags.value(EXIF_WHITEBALANCE).toUInt(&ok);
+    return ok ? WhiteBalance(v) : WhiteBalance::NotSet;
+}
+
+void MicroExif::setWhiteBalance(const WhiteBalance &wb)
+{
+    if (wb == WhiteBalance::NotSet)
+        m_exifTags.remove(EXIF_WHITEBALANCE);
+    else
+        m_exifTags.insert(EXIF_WHITEBALANCE, quint16(wb));
+}
+
 double MicroExif::latitude() const
 {
     auto ref = gpsString(GPS_LATITUDEREF).toUpper();
@@ -1045,6 +1201,30 @@ void MicroExif::setAltitude(double meters)
     m_gpsTags.insert(GPS_ALTITUDE, meters);
 }
 
+double MicroExif::imageSpeed() const
+{
+    if (!m_gpsTags.contains(GPS_SPEED))
+        return qQNaN();
+    auto ref = gpsString(GPS_SPEEDREF).toUpper();
+    auto speed = m_gpsTags.value(GPS_SPEED).toDouble();
+    if (ref == QStringLiteral("M"))
+        speed *= 1.60934;
+    else if (ref == QStringLiteral("N"))
+        speed *= 1.852;
+    return speed;
+}
+
+void MicroExif::setImageSpeed(double kmh)
+{
+    if (qIsNaN(kmh)) {
+        m_gpsTags.remove(GPS_SPEEDREF);
+        m_gpsTags.remove(GPS_SPEED);
+        return;
+    }
+    m_gpsTags.insert(GPS_SPEEDREF, QStringLiteral("K"));
+    m_gpsTags.insert(GPS_SPEED, kmh);
+}
+
 double MicroExif::imageDirection(bool *isMagnetic) const
 {
     auto tmp = false;
@@ -1191,6 +1371,58 @@ void MicroExif::updateImageMetadata(QImage &targetImage, bool replaceExisting) c
         if (!qIsNaN(v))
             targetImage.setText(QStringLiteral(META_KEY_DIRECTION), QStringLiteral("%1").arg(v, 0, 'g', 9));
     }
+    if (replaceExisting || targetImage.text(QStringLiteral(META_KEY_SPEED)).isEmpty()) {
+        auto v = imageSpeed();
+        if (!qIsNaN(v))
+            targetImage.setText(QStringLiteral(META_KEY_SPEED), QStringLiteral("%1").arg(v, 0, 'g', 9));
+    }
+
+    // shot info
+    if (replaceExisting || targetImage.text(QStringLiteral(META_KEY_DIGITALZOOMRATIO)).isEmpty()) {
+        auto v = digitalZoomRatio();
+        if (!qIsNaN(v))
+            targetImage.setText(QStringLiteral(META_KEY_DIGITALZOOMRATIO), QStringLiteral("%1").arg(v, 0, 'g', 9));
+    }
+    if (replaceExisting || targetImage.text(QStringLiteral(META_KEY_EXPOSUREMODE)).isEmpty()) {
+        auto v = exposureMode();
+        if (v != ExposureMode::NotSet)
+            targetImage.setText(QStringLiteral(META_KEY_EXPOSUREMODE), QStringLiteral("%1").arg(quint16(v)));
+    }
+    if (replaceExisting || targetImage.text(QStringLiteral(META_KEY_EXPOSUREPROGRAM)).isEmpty()) {
+        auto v = exposureProgram();
+        if (v != ExposureProgram::NotSet)
+            targetImage.setText(QStringLiteral(META_KEY_EXPOSUREPROGRAM), QStringLiteral("%1").arg(quint16(v)));
+    }
+    if (replaceExisting || targetImage.text(QStringLiteral(META_KEY_EXPOSURETIME)).isEmpty()) {
+        auto v = exposureTime();
+        if (!qIsNaN(v))
+            targetImage.setText(QStringLiteral(META_KEY_EXPOSURETIME), QStringLiteral("%1").arg(v, 0, 'g', 9));
+    }
+    if (replaceExisting || targetImage.text(QStringLiteral(META_KEY_FLASH)).isEmpty()) {
+        auto v = flash();
+        if (v != Flash::NotSet)
+            targetImage.setText(QStringLiteral(META_KEY_FLASH), QStringLiteral("%1").arg(quint16(v)));
+    }
+    if (replaceExisting || targetImage.text(QStringLiteral(META_KEY_FNUMBER)).isEmpty()) {
+        auto v = fNumber();
+        if (!qIsNaN(v))
+            targetImage.setText(QStringLiteral(META_KEY_FNUMBER), QStringLiteral("%1").arg(v, 0, 'g', 9));
+    }
+    if (replaceExisting || targetImage.text(QStringLiteral(META_KEY_FOCALLENGTH)).isEmpty()) {
+        auto v = focalLength();
+        if (!qIsNaN(v))
+            targetImage.setText(QStringLiteral(META_KEY_FOCALLENGTH), QStringLiteral("%1").arg(v, 0, 'g', 9));
+    }
+    if (replaceExisting || targetImage.text(QStringLiteral(META_KEY_ISOSPEEDRATINGS)).isEmpty()) {
+        auto v = isoSpeedRatings();
+        if (v != 0)
+            targetImage.setText(QStringLiteral(META_KEY_ISOSPEEDRATINGS), QStringLiteral("%1").arg(v));
+    }
+    if (replaceExisting || targetImage.text(QStringLiteral(META_KEY_WHITEBALANCE)).isEmpty()) {
+        auto v = whiteBalance();
+        if (v != WhiteBalance::NotSet)
+            targetImage.setText(QStringLiteral(META_KEY_WHITEBALANCE), QStringLiteral("%1").arg(quint16(v)));
+    }
 }
 
 bool MicroExif::updateImageResolution(QImage &targetImage)
@@ -1217,7 +1449,7 @@ MicroExif MicroExif::fromByteArray(const QByteArray &ba, bool searchHeader)
             idx = std::min(idxLE, idxBE);
         else
             idx = idxLE > -1 ? idxLE : idxBE;
-        if(idx > 0)
+        if (idx > 0)
             ba0 = ba0.mid(idx);
     }
     QBuffer buf;
@@ -1308,7 +1540,7 @@ MicroExif MicroExif::fromImage(const QImage &image)
         dt = QDateTime::currentDateTime();
     exif.setDateTimeOriginal(dt);
 
-    // GPS Info
+    // GPS info
     auto ok = false;
     auto alt = image.text(QStringLiteral(META_KEY_ALTITUDE)).toDouble(&ok);
     if (ok)
@@ -1322,6 +1554,38 @@ MicroExif MicroExif::fromImage(const QImage &image)
     auto dir = image.text(QStringLiteral(META_KEY_DIRECTION)).toDouble(&ok);
     if (ok)
         exif.setImageDirection(dir);
+    auto spd = image.text(QStringLiteral(META_KEY_SPEED)).toDouble(&ok);
+    if (ok)
+        exif.setImageSpeed(spd);
+
+    // EXIF shot info
+    auto zoom = image.text(QStringLiteral(META_KEY_DIGITALZOOMRATIO)).toDouble(&ok);
+    if (ok)
+        exif.setDigitalZoomRatio(zoom);
+    auto expm = image.text(QStringLiteral(META_KEY_EXPOSUREMODE)).toUShort(&ok);
+    if (ok)
+        exif.setExposureMode(ExposureMode(expm));
+    auto expp = image.text(QStringLiteral(META_KEY_EXPOSUREPROGRAM)).toUShort(&ok);
+    if (ok)
+        exif.setExposureProgram(ExposureProgram(expp));
+    auto expt = image.text(QStringLiteral(META_KEY_EXPOSURETIME)).toDouble(&ok);
+    if (ok)
+        exif.setExposureTime(expt);
+    auto flsh = image.text(QStringLiteral(META_KEY_FLASH)).toUShort(&ok);
+    if (ok)
+        exif.setFlash(FlashFlags(flsh));
+    auto fnum = image.text(QStringLiteral(META_KEY_FNUMBER)).toDouble(&ok);
+    if (ok)
+        exif.setFNumber(fnum);
+    auto flen = image.text(QStringLiteral(META_KEY_FOCALLENGTH)).toDouble(&ok);
+    if (ok)
+        exif.setFocalLength(flen);
+    auto isos = image.text(QStringLiteral(META_KEY_ISOSPEEDRATINGS)).toUShort(&ok);
+    if (ok)
+        exif.setIsoSpeedRatings(isos);
+    auto whtb = image.text(QStringLiteral(META_KEY_WHITEBALANCE)).toUShort(&ok);
+    if (ok)
+        exif.setWhiteBalance(WhiteBalance(whtb));
 
     return exif;
 }

src/imageformats/microexif_p.h

@@ -24,6 +24,85 @@
 #define EXIF_DEFAULT_BYTEORDER QDataStream::BigEndian
 #endif
 
+/*!
+     * \brief The Flash enum
+     */
+enum class Flash : quint16 {
+    NotSet = 0,
+
+    // Values for bit 0 indicating whether the flash fired.
+    // 0b = Flash did not fire.
+    // 1b = Flash fired.
+    Fired = 1,
+
+    // Values for bits 1 and 2 indicating the status of returned light.
+    // 00b = No strobe return detection function
+    // 01b = reserved
+    // 10b = Strobe return light not detected.
+    // 11b = Strobe return light detected.
+    ReturnLightNotDetected = 2 << 1,
+    ReturnLightDetected = 3 << 1,
+
+    // Values for bits 3 and 4 indicating the camera's flash mode.
+    // 00b = unknown
+    // 01b = Compulsory flash firing
+    // 10b = Compulsory flash suppression
+    // 11b = Auto mode
+    CompulsoryFiring = 1 << 3,
+    CompulsorySuppression = 2 << 3,
+    AutoMode = 3 << 3,
+
+    // Values for bit 5 indicating the presence of a flash function.
+    // 0b = Flash function present
+    // 1b = No flash function
+    FlashNotAvailable = 1 << 5,
+
+    // Values for bit 6 indicating the camera's red-eye mode.
+    // 0b = No red-eye reduction mode or unknown
+    // 1b = Red-eye reduction supported
+    RedEyeReductionSupported = 1 << 6,
+};
+Q_DECLARE_FLAGS(FlashFlags, Flash)
+Q_DECLARE_OPERATORS_FOR_FLAGS(FlashFlags)
+
+/*!
+     * \brief The ExposureMode enum
+     */
+enum class ExposureMode : quint16 {
+    Auto,
+    Manual,
+    AutoBracket,
+
+    NotSet = 65535
+};
+
+/*!
+     * \brief The ExposureProgram enum
+     */
+enum class ExposureProgram : quint16 {
+    NotDefined,
+    Manual,
+    Normal,
+    AperturePriority,
+    ShutterPriority,
+    Creative,
+    Action,
+    PortraitMode,
+    LandscapeMode,
+
+    NotSet = 65535
+};
+
+/*!
+     * \brief The WhiteBalance enum
+     */
+enum class WhiteBalance : quint16 {
+    Auto,
+    Manual,
+
+    NotSet = 65535
+};
+
 /*!
  * \brief The MicroExif class
  * Class to extract / write minimal EXIF data (e.g. resolution, rotation,
@@ -131,6 +210,19 @@ public:
     QImageIOHandler::Transformation transformation() const;
     void setTransformation(const QImageIOHandler::Transformation& t);
 
+    /*!
+     * \brief transformationToOrientation
+     * \param t The Qt transformation.
+     * \return The EXIF orientation value or 0 if none.
+     */
+    static quint16 transformationToOrientation(const QImageIOHandler::Transformation& t);
+    /*!
+     * \brief orientationToTransformation
+     * \param o The EXIF orientation.
+     * \return The orientation converted in the equivalent Qt transformation.
+     */
+    static QImageIOHandler::Transformation orientationToTransformation(quint16 o);
+
     /*!
      * \brief software
      * \return Name and version number of the software package(s) used to create the image.
@@ -236,6 +328,69 @@ public:
     QUuid uniqueId() const;
     void setUniqueId(const QUuid &uuid);
 
+    /*!
+     * \brief digitalZoomRatio
+     * \return The digital zoom ratio when the image was shot or NaN if not set.
+     */
+    double digitalZoomRatio() const;
+    void setDigitalZoomRatio(double zoom);
+
+    /*!
+     * \brief exposureMode
+     * \return The exposure mode set when the image was shot. In auto-bracketing mode, the camera shoots a series of frames of the same scene at different exposure settings.
+     */
+    ExposureMode exposureMode() const;
+    void setExposureMode(const ExposureMode& em);
+
+    /*!
+     * \brief exposureProgram
+     * \return The class of the program used by the camera to set exposure when the picture is taken.
+     */
+    ExposureProgram exposureProgram() const;
+    void setExposureProgram(const ExposureProgram& ep);
+
+    /*!
+     * \brief exposureTime
+     * \return Exposure time, given in seconds (sec) or NaN if not set.
+     */
+    double exposureTime() const;
+    void setExposureTime(double et);
+
+    /*!
+     * \brief fNumber
+     * \return The F number or NaN if not set.
+     */
+    double fNumber() const;
+    void setFNumber(double f);
+
+    /*!
+     * \brief focalLength
+     * \return The actual focal length of the lens, in mm.
+     */
+    double focalLength() const;
+    void setFocalLength(double fl);
+
+    /*!
+     * \brief flash
+     * \return The status of flash when the image was shot.
+     */
+    FlashFlags flash() const;
+    void setFlash(const FlashFlags& flash);
+
+    /*!
+     * \brief isoSpeedRatings
+     * \return The sensitivity of the camera or input device when the image was shot.
+     */
+    quint16 isoSpeedRatings() const;
+    void setIsoSpeedRatings(quint16 iso);
+
+    /*!
+     * \brief whiteBalance
+     * \return The white balance mode set when the image was shot.
+     */
+    WhiteBalance whiteBalance() const;
+    void setWhiteBalance(const WhiteBalance& wb);
+
     /*!
      * \brief latitude
      * \return Floating-point number indicating the latitude in degrees north of the equator (e.g. 27.717) or NaN if not set.
@@ -258,6 +413,13 @@ public:
     double altitude() const;
     void setAltitude(double meters);
 
+    /*!
+     * \brief imageSpeed
+     * \return The speed in Km/h or NaN if not set.
+     */
+    double imageSpeed() const;
+    void setImageSpeed(double kmh);
+
     /*!
      * \brief imageDirection
      * \param isMagnetic Set to true if the direction is relative to magnetic north, false if it is relative to true north. Leave nullptr if is not of interest.

src/imageformats/pcx.cpp

@@ -65,11 +65,11 @@ public:
 
     inline int width() const
     {
-        return (XMax - XMin) + 1;
+        return int(XMax - XMin) + 1;
     }
     inline int height() const
     {
-        return (YMax - YMin) + 1;
+        return int(YMax - YMin) + 1;
     }
     inline bool isCompressed() const
     {

src/imageformats/raw.cpp

@@ -35,7 +35,7 @@
  * The maximum size in pixel allowed by the plugin.
  */
 #ifndef RAW_MAX_IMAGE_WIDTH
-#define RAW_MAX_IMAGE_WIDTH std::min(65535, KIF_LARGE_IMAGE_PIXEL_LIMIT)
+#define RAW_MAX_IMAGE_WIDTH KIF_64K_IMAGE_PIXEL_LIMIT
 #endif
 #ifndef RAW_MAX_IMAGE_HEIGHT
 #define RAW_MAX_IMAGE_HEIGHT RAW_MAX_IMAGE_WIDTH
@@ -759,8 +759,8 @@ bool LoadRAW(QImageIOHandler *handler, QImage &img)
 
     // *** Limiting the maximum image size on a reasonable size
     auto size = rawImageSize(rawProcessor.get());
-    if (size.width() > RAW_MAX_IMAGE_WIDTH || size.height() > RAW_MAX_IMAGE_HEIGHT) {
-        qCWarning(LOG_RAWPLUGIN) << "The maximum image size is limited to" << RAW_MAX_IMAGE_WIDTH << "x" << RAW_MAX_IMAGE_HEIGHT << "px";
+    if (size.width() >= RAW_MAX_IMAGE_WIDTH || size.height() >= RAW_MAX_IMAGE_HEIGHT) {
+        qCWarning(LOG_RAWPLUGIN) << "The maximum image size is limited to" << (RAW_MAX_IMAGE_WIDTH - 1) << "x" << (RAW_MAX_IMAGE_HEIGHT - 1) << "px";
         return false;
     }
 

src/imageformats/util_p.h

@@ -13,12 +13,21 @@
 #include <QImage>
 #include <QImageIOHandler>
 #include <QIODevice>
+#include <QPixelFormat>
 
 // Default maximum width and height for the large image plugins.
 #ifndef KIF_LARGE_IMAGE_PIXEL_LIMIT
 #define KIF_LARGE_IMAGE_PIXEL_LIMIT 300000
 #endif
 
+// Maximum size for legacy image formats.
+#define KIF_64K_IMAGE_PIXEL_LIMIT 65536
+
+#if KIF_LARGE_IMAGE_PIXEL_LIMIT < KIF_64K_IMAGE_PIXEL_LIMIT
+#undef KIF_LARGE_IMAGE_PIXEL_LIMIT
+#define KIF_LARGE_IMAGE_PIXEL_LIMIT KIF_64K_IMAGE_PIXEL_LIMIT
+#endif
+
 // Image metadata keys to use in plugins (so they are consistent)
 #define META_KEY_ALTITUDE "Altitude"
 #define META_KEY_AUTHOR "Author"
@@ -34,10 +43,22 @@
 #define META_KEY_MODIFICATIONDATE "ModificationDate"
 #define META_KEY_OWNER "Owner"
 #define META_KEY_SOFTWARE "Software"
+#define META_KEY_SPEED "Speed"
 #define META_KEY_TITLE "Title"
 #define META_KEY_XML_GIMP "XML:org.gimp.xml"
 #define META_KEY_XMP_ADOBE "XML:com.adobe.xmp"
 
+// Shot info metadata keys
+#define META_KEY_DIGITALZOOMRATIO "DigitalZoomRatio"
+#define META_KEY_EXPOSUREMODE "ExposureMode"
+#define META_KEY_EXPOSUREPROGRAM "ExposureProgram"
+#define META_KEY_EXPOSURETIME "ExposureTime"
+#define META_KEY_FLASH "Flash"
+#define META_KEY_FNUMBER "FNumber"
+#define META_KEY_FOCALLENGTH "FocalLength"
+#define META_KEY_ISOSPEEDRATINGS "ISOSpeedRatings"
+#define META_KEY_WHITEBALANCE "WhiteBalance"
+
 // Camera info metadata keys
 #define META_KEY_MANUFACTURER "Manufacturer"
 #define META_KEY_MODEL "Model"
@@ -51,20 +72,50 @@
 // QList uses some extra space for stuff, hence the 32 here suggested by Thiago Macieira
 static constexpr int kMaxQVectorSize = std::numeric_limits<int>::max() - 32;
 
-// On Qt 6 to make the plugins fail to allocate if the image size is greater than QImageReader::allocationLimit()
-// it is necessary to allocate the image with QImageIOHandler::allocateImage().
-inline QImage imageAlloc(const QSize &size, const QImage::Format &format)
+/*!
+ * \brief The ImageInitToZero enum
+ */
+enum class ImageInitToZero
+{
+    None, /**< Do not initialize the image. */
+    All, /**< Initialize all images. */
+    PremulOnly, /**< Initialize only images with premultiplied alpha. */
+    FPOnly, /**< Initialize only images with floating point format. */
+    FPAndPremul /**< Initialize floating point and premultiplied formats. */
+};
+
+/*!
+ * \brief imageAlloc
+ * Helper function to initialize framework images.
+ * \param size The image size.
+ * \param format The image format,
+ * \param init Whether and which images should be initialized to zero.
+ * \return The allocated image or a null image on error.
+ */
+inline QImage imageAlloc(const QSize &size, const QImage::Format &format, const ImageInitToZero& init = ImageInitToZero::None)
 {
     QImage img;
     if (!QImageIOHandler::allocateImage(size, format, &img)) {
         img = QImage(); // paranoia
     }
+    if (init != ImageInitToZero::None && !img.isNull()) {
+        auto pixelFormat = img.pixelFormat();
+        auto isFloat = pixelFormat.typeInterpretation() == QPixelFormat::FloatingPoint;
+        auto isPremul = pixelFormat.premultiplied();
+        if (init == ImageInitToZero::All) {
+            img.fill(0);
+        } else if (isFloat && (init == ImageInitToZero::FPOnly || init == ImageInitToZero::FPAndPremul)) {
+            img.fill(0);
+        } else if (isPremul && (init == ImageInitToZero::PremulOnly || init == ImageInitToZero::FPAndPremul)) {
+            img.fill(0);
+        }
+    }
     return img;
 }
 
-inline QImage imageAlloc(qint32 width, qint32 height, const QImage::Format &format)
+inline QImage imageAlloc(qint32 width, qint32 height, const QImage::Format &format, const ImageInitToZero& init = ImageInitToZero::None)
 {
-    return imageAlloc(QSize(width, height), format);
+    return imageAlloc(QSize(width, height), format, init);
 }
 
 template<class TI, class SF> // SF = source FP, TI = target INT