Default to build heif support

Heif is now being widely used because of android and iphones
and it's not really nice to discover that even if I have the
library to handle heif, it's not compilling.

.gitlab-ci.yml

@@ -5,18 +5,7 @@ include:
   - project: sysadmin/ci-utilities
     file:
       - /gitlab-templates/linux-qt6.yml
-      - /gitlab-templates/linux-qt6-next.yml
       - /gitlab-templates/alpine-qt6.yml
       - /gitlab-templates/android-qt6.yml
       - /gitlab-templates/freebsd-qt6.yml
       - /gitlab-templates/windows-qt6.yml
-      - /gitlab-templates/xml-lint.yml
-      - /gitlab-templates/yaml-lint.yml
-
-image_json_validate:
-  stage: validate
-  image: invent-registry.kde.org/sysadmin/ci-images/suse-qt68:latest
-  tags:
-    - Linux
-  script:
-    - find src/imageformats/ -name *.json | xargs -I file bash -c "echo file && jq -e '(.Keys | type == \"array\") and (.MimeTypes | type == \"array\") and (.MimeTypes | length) == (.Keys | length)' file"

.kde-ci.yml

@@ -1,11 +1,10 @@
 Dependencies:
- - 'on': ['Linux', 'FreeBSD', 'macOS', 'Windows', 'Android']
+- 'on': ['Linux', 'FreeBSD', 'macOS', 'Windows', 'Android']
-   'require':
+  'require':
     'frameworks/extra-cmake-modules': '@same'
-    'frameworks/karchive': '@same'
+    'frameworks/karchive' : '@same'
 
 Options:
- test-before-installing: True
+  test-before-installing: True
- require-passing-tests-on: ['Linux', 'FreeBSD', 'Windows']
+  require-passing-tests-on: [ 'Linux', 'FreeBSD', 'Windows' ]
- cmake-options: "-DKIMAGEFORMATS_DDS=ON -DKIMAGEFORMATS_JXR=ON -DKIMAGEFORMATS_HEIF=ON"
+  cmake-options: "-DKIMAGEFORMATS_JXR=ON"
- per-test-timeout: 90

CMakeLists.txt

@@ -1,11 +1,11 @@
 cmake_minimum_required(VERSION 3.16)
 
-set(KF_VERSION "6.13.0") # handled by release scripts
+set(KF_VERSION "6.10.0") # handled by release scripts
-set(KF_DEP_VERSION "6.13.0") # handled by release scripts
+set(KF_DEP_VERSION "6.9.0") # handled by release scripts
 project(KImageFormats VERSION ${KF_VERSION})
 
 include(FeatureSummary)
-find_package(ECM 6.13.0  NO_MODULE)
+find_package(ECM 6.9.0  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)
 
@@ -62,9 +62,7 @@ set_package_properties(libavif PROPERTIES
     PURPOSE "Required for the QImage plugin for AVIF images"
 )
 
-option(KIMAGEFORMATS_DDS "Enable plugin for DDS format" ON)
+option(KIMAGEFORMATS_HEIF "Enable plugin for HEIF format" ON)
-
-option(KIMAGEFORMATS_HEIF "Enable plugin for HEIF format" OFF)
 if(KIMAGEFORMATS_HEIF)
     pkg_check_modules(LibHeif IMPORTED_TARGET libheif>=1.10.0)
 endif()
@@ -72,26 +70,18 @@ add_feature_info(LibHeif LibHeif_FOUND "required for the QImage plugin for HEIF/
 
 option(KIMAGEFORMATS_JXL "Enable plugin for JPEG XL format" ON)
 if(KIMAGEFORMATS_JXL)
-    pkg_check_modules(LibJXL IMPORTED_TARGET libjxl>=0.9.4)
+    pkg_check_modules(LibJXL IMPORTED_TARGET libjxl>=0.7.0)
-    pkg_check_modules(LibJXLThreads IMPORTED_TARGET libjxl_threads>=0.9.4)
+    pkg_check_modules(LibJXLThreads IMPORTED_TARGET libjxl_threads>=0.7.0)
-    pkg_check_modules(LibJXLCMS IMPORTED_TARGET libjxl_cms>=0.9.4)
+    pkg_check_modules(LibJXLCMS IMPORTED_TARGET libjxl_cms>=0.9.0)
 endif()
 add_feature_info(LibJXL LibJXL_FOUND "required for the QImage plugin for JPEG XL images")
 
-option(KIMAGEFORMATS_JP2 "Enable plugin for JPEG 2000 format" ON)
-if(KIMAGEFORMATS_JP2)
-    find_package(OpenJPEG CONFIG)
-endif()
-add_feature_info(OpenJPEG OpenJPEG_FOUND "required for the QImage plugin for JPEG 2000 images")
-
-
 find_package(LibRaw 0.20.2)
 set_package_properties(LibRaw PROPERTIES
     TYPE OPTIONAL
     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)
     find_package(LibJXR)
@@ -99,8 +89,8 @@ endif()
 add_feature_info(LibJXR LibJXR_FOUND "required for the QImage plugin for JPEG XR images")
 
 ecm_set_disabled_deprecation_versions(
-    QT 6.9.0
+    QT 6.8.0
-    KF 6.12.0
+    KF 6.8.0
 )
 
 add_subdirectory(src)

README.md

@@ -1,7 +1,6 @@
 # KImageFormats
 
-Plugins to allow [`QImage`](https://doc.qt.io/qt-6/qimage.html) to support
+Plugins to allow `QImage` to support extra file formats.
-extra file formats.
 
 ## Introduction
 
@@ -29,10 +28,8 @@ The following image formats have read-only support:
 The following image formats have read and write support:
 
 - AV1 Image File Format (avif)
-- DirectDraw Surface (dds)
 - Encapsulated PostScript (eps)
 - High Efficiency Image File Format (heif)
-- JPEG 2000 (jp2, j2k, jpf)
 - JPEG XL (jxl)
 - JPEG XR (jxr)
 - OpenEXR (exr)
@@ -44,22 +41,16 @@ The following image formats have read and write support:
 
 ## Contributing
 
-See the [`QImageIOPlugin`](https://doc.qt.io/qt-6/qimageioplugin.html)
+See the [`QImageIOPlugin`](https://doc.qt.io/qt-6/qimageioplugin.html) documentation for information on how to write a
-documentation for information on how to write a new plugin.
+new plugin.
 
-The main difference between this framework and the image formats of Qt is
+The main difference between this framework and the qimageformats module
-the license. As such, if you write an image format plugin and you are
+of Qt is the license.  As such, if you write an imageformat plugin and
-willing to sign the Qt Project contributor agreement, it may be better to
+you are willing to sign the Qt Project contributor agreement, it may be
-submit the plugin directly to the Qt Project.
+better to submit the plugin directly to the Qt Project.
-
-To be accepted, contributions must:
-- Contain the test images needed to verify that the changes work correctly
-- Pass the tests successfully
 
 ## Duplicated Plugins
 
-### The TGA plugin
-
 The TGA plugin supports more formats than Qt's own TGA plugin;
 specifically, the one provided here supports indexed, greyscale and RLE
 images (types 1-3 and 9-11), while Qt's plugin only supports type 2
@@ -70,18 +61,6 @@ licensing.  If anyone were willing to write fresh code to improve Qt's
 TGA plugin, it would allow the TGA plugin in this framework to be
 removed.
 
-### The DDS plugin
-
-The DDS plugin is a fork from Qt 5.6 with bug fixes and improvements.
-
-The plugin was forked because Qt Project no longer supports its DDS plugin.
-
-### The JP2 plugin
-
-The JP2 plugin is based on the popular and wide used OpenJPEG library.
-
-The Qt project has a no longer supported JPEG 2000 plugin based on Jasper.
-
 ## License
 
 This framework is licensed under the
@@ -92,117 +71,37 @@ The CMake code in this framework is licensed under the
 
 ## Plugin status
 
-The current implementation of a plugin may not be complete or may have
+The current implementation of a plugin may not be complete or may have limitations
-limitations of various kinds. Typically the limitations are on maximum size
+of various kinds. Typically the limitations are on maximum size and color depth.
-and color depth.
 
-The various plugins are also limited by the formats natively supported by Qt.
+The various plugins are also limited by the formats natively supported by Qt. 
 For example, native support for CMYK images is only available since Qt 6.8.
 
 ### HDR images
 
-HDR images are supported via floating point image formats from DDS, EXR, HDR,
+HDR images are supported via floating point image formats from EXR, HDR, JXL,
-JXL, JXR, PFM and PSD plugins.
+JXR, PFM and PSD plugins.
-It is important to note that in the past these plugins stripped away HDR
+It is important to note that in the past these plugins stripped away HDR 
 information, returning SDR images.
 
 HDR images return R, G and B values ​​outside the range 0.0 - 1.0.
-While Qt painters handles HDR data correctly, some older programs may display
+While Qt painters handles HDR data correctly, some older programs may display 
-strange artifacts if they do not use a tone mapping operator (or at least a
+strange artifacts if they do not use a tone mapping operator (or at least a 
 clamp). This is not a plugin issue.
 
 ### Metadata
 
-Metadata support is available in formats that include it via 
+Metadata support is implemented in all formats that support it. In particular,
-`QImage::setText()` and `QImage::text()`. To ensure consistent metadata 
+in addition to the classic `"Description"`, `"Author"`, `"Copyright"`, etc... where 
-functionality, the following keys have been adopted.
+possible, XMP data is supported via the `"XML:com.adobe.xmp"` key.
 
-About the image:
+Please note that only the most common metadata is supported.
-- `Altitude`: Floating-point number indicating the GPS altitude in meters 
-  above sea level (e.g. 35.4).
-- `Author`: Person who created the image.
-- `Comment`: Additional image information in human-readable form, for 
-  example a verbal description of the image.
-- `Copyright`: Copyright notice of the person or organization that claims 
-  the copyright to the image.
-- `CreationDate`: When the image was created or captured. Date and time in 
-  ISO 8601 format without milliseconds (e.g. 2024-03-23T15:30:43). This value
-  should be kept unchanged when present.
-- `Description`: A string that describes the subject of the image.
-- `Direction`: Floating-point number indicating the direction of the image
-  when it was captured in degrees (e.g. 123.3).
-- `DocumentName`: The name of the document from which this image was 
-  scanned.
-- `HostComputer`: The computer and/or operating system in use at the time 
-  of image creation.
-- `Latitude`: Floating-point number indicating the latitude in degrees 
-  north of the equator (e.g. 27.717).
-- `Longitude`: Floating-point number indicating the longitude in degrees 
-  east of Greenwich (e.g. 85.317).
-- `ModificationDate`: Last modification date and time in ISO 8601 format 
-  without milliseconds (e.g. 2024-03-23T15:30:43). This value should be 
-  updated every time the image is saved.
-- `Owner`: Name of the owner of the image.
-- `Software`: Name and version number of the software package(s) used to 
-  create the image.
-- `Title`: The title of the image.
-
-About the camera:
-- `Manufacturer`: The manufacturer of the recording equipment.
-- `Model`: The model name or model number of the recording equipment.
-- `SerialNumber`: The serial number of the recording equipment.
-
-About the lens:
-- `LensManufacturer`: The manufacturer of the interchangeable lens that was 
-  used.
-- `LensModel`: The model name or model number of the lens that was used.
-- `LensSerialNumber`: The serial number of the interchangeable lens that was 
-  used.
-
-Complex metadata (requires a parser):
-- `XML:org.gimp.xml`: XML metadata generated by GIMP and present only in XCF 
-  files.
-- `XML:com.adobe.xmp`: [Extensible Metadata Platform (XMP)](https://developer.adobe.com/xmp/docs/)
-  is the metadata standard used by Adobe applications and is supported by all 
-  common image formats. **Note that XMP metadata is read and written by 
-  plugins as is.** Since it may contain information present in other metadata 
-  (e.g. `Description`), it is the user's responsibility to ensure consistency 
-  between all metadata and XMP metadata when writing an image.
-
-Supported metadata may vary from one plugin to another. Please note that only
-the most common metadata are supported and some plugins may return keys not 
-listed here.
-
-### EXIF Metadata
-
-[EXIF (Exchangeable Image File Format)](https://en.wikipedia.org/wiki/Exif) 
-metadata is a standard for embedding information within the image file itself.
-
-Unlike the metadata described above, EXIF ​​metadata is used internally by some 
-plugins to standardize image handling. For example, the JXL plugin uses them 
-to **set/get the image resolution and metadata**. They are also needed to 
-make the image properties appear in the file details of some file managers 
-(e.g. Dolphin).
-
-When reading, EXIF meta​​data is converted into simple metadata (e.g. 
-`Description`) and inserted into the image if and only if it is not already 
-present.
-
-On writing, the image metadata is converted to EXIF ​​and saved appropriately.
-Note that, if not present in the image to be saved, the following metadata 
-are created automatically:
-
-- `Software`: Created using `applicationName` and `applicationVersion` methods
-  of [`QCoreApplication`](https://doc.qt.io/qt-6/qcoreapplication.html).
-- `CreationDate`: Set to current time and date.
-- `ModificationDate`: Set to current time and date.
 
 ### ICC profile support
 
-ICC profile support is implemented in all formats that handle them using
+ICC support is fully implemented in all formats that support it. When saving, 
-[`QColorSpace`](https://doc.qt.io/qt-6/qcolorspace.html). When saving, some 
+some formats convert the image using color profiles according to
-plugins convert the image using color profiles according to format 
+specifications. In particular, HDR formats almost always convert to linear
-specifications. In particular, HDR formats almost always convert to linear 
 RGB.
 
 ### Maximum image size
@@ -215,16 +114,11 @@ plugin ('n/a' means no limit, i.e. the limit depends on the format encoding).
 
 - ANI: n/a
 - AVIF: 32,768 x 32,768 pixels, in any case no larger than 256 megapixels
-- DDS: n/a
 - EXR: 300,000 x 300,000 pixels
-- EPS: n/a
 - HDR: n/a (large image)
 - HEIF: n/a
-- 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
 - JXR: n/a, in any case no larger than 4 GB
-- KRA: same size as Qt's PNG plugin
-- ORA: same size as Qt's PNG plugin
 - PCX: 65,535 x 65,535 pixels
 - PFM: n/a (large image)
 - PIC: 65,535 x 65,535 pixels
@@ -265,125 +159,56 @@ been used or the maximum size of the image that can be saved has been limited.
 PSD plugin loads CMYK, Lab and Multichannel images and converts them to RGB 
 without using the ICC profile.
 
-JP2, JXL, JXR, PSD and SCT plugins natively support 4-channel CMYK images when
+JXR, PSD and SCT plugins natively support 4-channel CMYK images when compiled 
-compiled with Qt 6.8+.
+with Qt 6.8+.
-
-### The DDS plugin
-
-**This plugin can be disabled by setting `KIMAGEFORMATS_DDS` to `OFF` 
-in your cmake options.**
-
-The following defines can be defined in cmake to modify the behavior of the 
-plugin:
-- `DDS_DISABLE_STRIDE_ALIGNMENT`: disable the stride aligment based on DDS 
-  pitch: it is known that some writers do not set it correctly.
 
 ### The HEIF plugin
 
-**This plugin is disabled by default. It can be enabled by settings
+**This plugin is disabled by default. It can be enabled with the 
-`KIMAGEFORMATS_HEIF` to `ON` in your cmake options.**
+`KIMAGEFORMATS_HEIF` build option in the cmake file.**
-
-The plugin is disabled due to issues with the heif library on certain
-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 EXR plugin
 
-The following defines can be defined in cmake to modify the behavior of the 
+The following defines can be defined in cmake to modify the behavior of the plugin:
-plugin:
+- `EXR_CONVERT_TO_SRGB`: the linear data is converted to sRGB on read to accommodate programs that do not support color profiles.
-- `EXR_CONVERT_TO_SRGB`: the linear data is converted to sRGB on read to 
+- `EXR_DISABLE_XMP_ATTRIBUTE`: disables the stores XMP values in a non-standard attribute named "xmp". Note that Gimp reads the "xmp" attribute and Darktable writes it as well.
-  accommodate programs that do not support color profiles.
-- `EXR_DISABLE_XMP_ATTRIBUTE`: disables the stores XMP values in a non-standard 
-  attribute named "xmp". Note that Gimp reads the "xmp" attribute and Darktable 
-  writes it as well.
-
-### The EPS plugin
-
-The plugin uses `Ghostscript` to convert the raster image. When reading it
-converts the EPS to PPM and uses the Qt PPM plugin to read the image.
-When writing it uses [`QPrinter`](https://doc.qt.io/qt-6/qprinter.html) to
-create a temporary PDF file which is then converted to EPS. Therefore, if
-`Ghostscript` is not installed, the plugin will not work.
 
 ### The HDR plugin
 
-The following defines can be defined in cmake to modify the behavior of the 
+The following defines can be defined in cmake to modify the behavior of the plugin:
-plugin:
+- `HDR_HALF_QUALITY`: on read, a 16-bit float image is returned instead of a 32-bit float one.
-- `HDR_HALF_QUALITY`: on read, a 16-bit float image is returned instead of a 
-  32-bit float one.
-
-### The JP2 plugin
-
-**This plugin can be disabled by setting `KIMAGEFORMATS_JP2` to `OFF` 
-in your cmake options.**
-
-JP2 plugin has the following limitations due to the lack of support by OpenJPEG:
-- Metadata are not supported.
-- Image resolution is not supported.
-- To write ICC profiles you need OpenJPEG V2.5.4 or higher
 
 ### The JXL plugin
 
 **The current version of the plugin limits the image size to 256 megapixels
 according to feature level 5 of the JXL stream encoding.**
 
-The following defines can be defined in cmake to modify the behavior of the
+The following defines can be defined in cmake to modify the behavior of the plugin:
-plugin:
+- `JXL_HDR_PRESERVATION_DISABLED`: disable floating point images (both read and write) by converting them to UINT16 images. Any HDR data is lost. Note that FP images are always disabled when compiling with libJXL less than v0.9.
-- `JXL_HDR_PRESERVATION_DISABLED`: disable floating point images (both read 
-  and write) by converting them to UINT16 images. Any HDR data is lost. Note 
-  that FP images are always disabled when compiling with libJXL less than v0.9.
 - `JXL_DECODE_BOXES_DISABLED`: disable reading of metadata (e.g. XMP).
 
 ### The JXR plugin
 
-**This plugin is disabled by default. It can be enabled by settings
+**This plugin is disabled by default. It can be enabled with the 
-`KIMAGEFORMATS_JXR` to `ON` in your cmake options.**
+`KIMAGEFORMATS_JXR` build option in the cmake file.**
 
-The following defines can be defined in cmake to modify the behavior of the 
+The following defines can be defined in cmake to modify the behavior of the plugin:
-plugin:
+- `JXR_DENY_FLOAT_IMAGE`: disables the use of float images and consequently any HDR data will be lost.
-- `JXR_DENY_FLOAT_IMAGE`: disables the use of float images and consequently 
+- `JXR_DISABLE_DEPTH_CONVERSION`: remove the neeeds of additional memory by disabling the conversion between different color depths (e.g. RGBA64bpp to RGBA32bpp) at the cost of reduced compatibility.
-  any HDR data will be lost.
+- `JXR_DISABLE_BGRA_HACK`: 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.
-- `JXR_DISABLE_DEPTH_CONVERSION`: remove the neeeds of additional memory by 
+- `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.
-  disabling the conversion between different color depths (e.g. RGBA64bpp to 
-  RGBA32bpp) at the cost of reduced compatibility.
-- `JXR_DISABLE_BGRA_HACK`: 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.
-- `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
-
-The KRA format is a ZIP archive containing image data. In particular, the
-rendered image in PNG format is saved in the root: the plugin reads this 
-image.
-
-### The ORA plugin
-
-The ORA format is a ZIP archive containing image data. In particular, the
-rendered image in PNG format is saved in the root: the plugin reads this 
-image.
 
 ### The PSD plugin
 
 PSD support has the following limitations:
-- Only images saved by Photoshop using compatibility mode enabled (Photoshop 
+- Only images saved by Photoshop using compatibility mode enabled (Photoshop default) can be decoded.
-  default) can be decoded.
+- Multichannel images are treated as CMY/CMYK and are only loaded if they have 3 or more channels.
-- Multichannel images are treated as CMYK if they have 2 or more channels.
-- Multichannel images are treated as Grayscale if they have 1 channel.
 - Duotone images are treated as grayscale images.
 - Extra channels other than alpha are discarded.
 
-The following defines can be defined in cmake to modify the behavior of the 
+The following defines can be defined in cmake to modify the behavior of the plugin:
-plugin:
+- `PSD_FAST_LAB_CONVERSION`: the LAB image is converted to linear sRGB instead of sRGB which significantly increases performance.
-- `PSD_FAST_LAB_CONVERSION`: the LAB image is converted to linear sRGB instead
+- `PSD_NATIVE_CMYK_SUPPORT_DISABLED`: disable native support for CMYK images when compiled with Qt 6.8+
-  of sRGB which significantly increases performance.
-- `PSD_NATIVE_CMYK_SUPPORT_DISABLED`: disable native support for CMYK images 
-  when compiled with Qt 6.8+
 
 ### The RAW plugin
 
@@ -398,9 +223,7 @@ The default setting tries to balance quality and conversion speed.
 ### The XCF plugin
 
 XCF support has the following limitations:
-- XCF format up to [version 12](https://testing.developer.gimp.org/core/standards/xcf/#version-history) 
+- XCF format up to [version 12](https://testing.developer.gimp.org/core/standards/xcf/#version-history) (no support for GIMP 3).
-  (no support for GIMP 3).
 - The returned image is always 8-bit.
 - Cannot read zlib compressed files.
-- The rendered image may be slightly different (colors/transparencies) than 
+- The rendered image may be slightly different (colors/transparencies) than in GIMP.
-  in GIMP.

autotests/CMakeLists.txt

@@ -19,15 +19,9 @@ macro(kimageformats_read_tests)
     endif()
 
     foreach(_testname ${KIF_RT_UNPARSED_ARGUMENTS})
-        string(REGEX MATCH "-skipoptional" _is_skip_optional "${_testname}")
-        unset(skip_optional_arg)
-        if (_is_skip_optional)
-            set(skip_optional_arg "--skip-optional-tests")
-            string(REGEX REPLACE "-skipoptional$" "" _testname "${_testname}")
-        endif()
         add_test(
             NAME kimageformats-read-${_testname}
-            COMMAND readtest ${skip_optional_arg} ${_fuzzarg} ${_testname}
+            COMMAND readtest ${_fuzzarg} ${_testname}
         )
     endforeach(_testname)
 endmacro()
@@ -49,8 +43,6 @@ macro(kimageformats_write_tests)
     foreach(_testname ${KIF_RT_UNPARSED_ARGUMENTS})
         string(REGEX MATCH "-lossless$" _is_lossless "${_testname}")
         string(REGEX MATCH "-nodatacheck" _is_no_data_check "${_testname}")
-        string(REGEX MATCH "-skipoptional" _is_skip_optional "${_testname}")
-        unset(skip_optional_arg)
         unset(lossless_arg)
         unset(no_data_check_arg)
         if (_is_lossless)
@@ -61,13 +53,9 @@ macro(kimageformats_write_tests)
             set(no_data_check_arg "--no-data-check")
             string(REGEX REPLACE "-nodatacheck$" "" _testname "${_testname}")
         endif()
-        if (_is_skip_optional)
-            set(skip_optional_arg "--skip-optional-tests")
-            string(REGEX REPLACE "-skipoptional$" "" _testname "${_testname}")
-        endif()
         add_test(
             NAME kimageformats-write-${_testname}
-            COMMAND writetest ${lossless_arg} ${no_data_check_arg} ${skip_optional_arg} ${_fuzzarg} ${_testname}
+            COMMAND writetest ${lossless_arg} ${no_data_check_arg} ${_fuzzarg} ${_testname}
         )
     endforeach(_testname)
 endmacro()
@@ -88,11 +76,6 @@ kimageformats_read_tests(
     tga
 )
 
-if(KIMAGEFORMATS_DDS)
-    kimageformats_read_tests(dds)
-    kimageformats_write_tests(dds-nodatacheck-lossless)
-endif()
-
 if (KF6Archive_FOUND)
     kimageformats_read_tests(
         kra
@@ -122,46 +105,16 @@ if (LibHeif_FOUND)
         kimageformats_read_tests(FUZZ 1
             hej2
         )
-        kimageformats_write_tests(FUZZ 1
-            hej2-nodatacheck-lossless
-        )
-    endif()
-
-    if (LibHeif_VERSION VERSION_GREATER_EQUAL "1.19.6")
-        kimageformats_read_tests(FUZZ 4
-            avci
-        )
-    endif()
-endif()
-
-if (OpenJPEG_FOUND)
-    kimageformats_read_tests(
-        jp2
-    )
-    # CMYK writing is incorrect in versions before 2.5.3
-    if ("${OPENJPEG_MAJOR_VERSION}.${OPENJPEG_MINOR_VERSION}.${OPENJPEG_BUILD_VERSION}" VERSION_GREATER_EQUAL "2.5.3")
-        kimageformats_write_tests(
-            jp2-nodatacheck-lossless
-        )
     endif()
 endif()
 
 if (LibJXL_FOUND AND LibJXLThreads_FOUND)
-    if(LibJXL_VERSION VERSION_GREATER_EQUAL "0.11.0")
+    kimageformats_read_tests(
-        kimageformats_read_tests(
+        jxl
-            jxl
+    )
-        )
+    kimageformats_write_tests(
-        kimageformats_write_tests(
+        jxl-nodatacheck-lossless
-            jxl-nodatacheck-lossless
+    )
-        )
-    else()
-        kimageformats_read_tests(
-            jxl-skipoptional
-        )
-        kimageformats_write_tests(
-            jxl-skipoptional-nodatacheck-lossless
-        )
-    endif()
 endif()
 
 if (LibJXR_FOUND)
@@ -173,7 +126,9 @@ if (LibJXR_FOUND)
     )
 endif()
 
-kimageformats_read_tests(
+# Allow some fuzziness when reading this formats, to allow for
+# rounding errors (eg: in alpha blending).
+kimageformats_read_tests(FUZZ 1
     xcf
 )
 
@@ -184,7 +139,7 @@ kimageformats_read_tests(
 # You can append -lossless to the format to indicate that
 # reading back the image data will result in an identical image.
 kimageformats_write_tests(
-    pcx-nodatacheck
+    pcx-lossless
     pic-lossless
     qoi-lossless
     rgb-lossless
@@ -203,7 +158,7 @@ if (OpenEXR_FOUND)
     )
     # Color space conversions from sRGB to linear on saving and
     # from linear to sRGB on loading result in some rounding errors.
-    kimageformats_write_tests(FUZZ 6
+    kimageformats_write_tests(FUZZ 5
         exr-nodatacheck-lossless
     )
 endif()

autotests/fuzzyeq.cpp

@@ -4,66 +4,34 @@
     SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
 */
 
-#include <QImage>
-#include <QRgb>
-#include <QRgba64>
-
-inline int iAbs(const int &v)
-{
-    return v < 0 ? -v : v;
-}
-
 template<class Trait>
-static bool fuzzyeq(const QImage &im1, const QImage &im2, int fuzziness, bool perceptiveFuzzer)
+static bool fuzzyeq(const QImage &im1, const QImage &im2, uchar fuzziness)
 {
     Q_ASSERT(im1.format() == im2.format());
     Q_ASSERT(im1.depth() == 24 || im1.depth() == 32 || im1.depth() == 64);
 
-    const bool hasAlpha = im1.hasAlphaChannel();
     const int height = im1.height();
     const int width = im1.width();
     for (int i = 0; i < height; ++i) {
         const Trait *line1 = reinterpret_cast<const Trait *>(im1.scanLine(i));
         const Trait *line2 = reinterpret_cast<const Trait *>(im2.scanLine(i));
         for (int j = 0; j < width; ++j) {
-            auto &&px1 = line1[j];
+            if (line1[j] > line2[j]) {
-            auto &&px2 = line2[j];
+                if (line1[j] - line2[j] > fuzziness) {
-            auto fuzz = int(fuzziness);
+                    return false;
-
+                }
-            // Calculate the deltas
+            } else {
-            auto dr = iAbs(int(qRed(px2)) - int(qRed(px1)));
+                if (line2[j] - line1[j] > fuzziness) {
-            auto dg = iAbs(int(qGreen(px2)) - int(qGreen(px1)));
+                    return false;
-            auto db = iAbs(int(qBlue(px2)) - int(qBlue(px1)));
+                }
-            auto da = iAbs(int(qAlpha(px2)) - int(qAlpha(px1)));
-
-            // Always compare alpha even on images without it: some formats (e.g. RGBX64),
-            // want it set to a certain value (e.g. 65535).
-            if (da > fuzz)
-                return false;
-
-            // Calculate the perceptive fuzziness.
-            if (hasAlpha && perceptiveFuzzer) {
-                auto alpha = std::max(4, int(qAlpha(px1)));
-                if (sizeof(Trait) == 4)
-                    fuzz = std::min(fuzz * (255 / alpha), 255);
-                else
-                    fuzz = std::min(fuzz * (65535 / alpha), 255 * 257);
             }
-
-            // Compare the deltas of R, G, B components.
-            if (dr > fuzz)
-                return false;
-            if (dg > fuzz)
-                return false;
-            if (db > fuzz)
-                return false;
         }
     }
     return true;
 }
 
 // allow each byte to be different by up to 1, to allow for rounding errors
-static bool fuzzyeq(const QImage &im1, const QImage &im2, uchar fuzziness, bool perceptiveFuzzer = false)
+static bool fuzzyeq(const QImage &im1, const QImage &im2, uchar fuzziness)
 {
-    return (im1.depth() == 64) ? fuzzyeq<QRgba64>(im1, im2, int(fuzziness) * 257, perceptiveFuzzer) : fuzzyeq<QRgb>(im1, im2, int(fuzziness), perceptiveFuzzer);
+    return (im1.depth() == 64) ? fuzzyeq<quint16>(im1, im2, fuzziness) : fuzzyeq<quint8>(im1, im2, fuzziness);
 }

autotests/read/avif/metadata.avif.json

@@ -1,59 +0,0 @@
-[
-    {
-        "fileName" : "metadata.png",
-        "metadata" : [
-            {
-                "key" : "ModificationDate",
-                "value" : "2025-02-19T08:27:22+01:00"
-            },
-            {
-                "key" : "Software" ,
-                "value" : "GIMP 3.0.0-RC3"
-            },
-            {
-                "key" : "Altitude",
-                "value" : "34"
-            },
-            {
-                "key" : "Author",
-                "value" : "KDE Project"
-            },
-            {
-                "key" : "Copyright",
-                "value" : "@2025 KDE Project"
-            },
-            {
-                "key" : "Description",
-                "value" : "TV broadcast test image."
-            },
-            {
-                "key" : "Latitude",
-                "value" : "44.6478"
-            },
-            {
-                "key" : "LensManufacturer",
-                "value" : "KDE Glasses"
-            },
-            {
-                "key" : "LensModel",
-                "value" : "A1234"
-            },
-            {
-                "key" : "Longitude",
-                "value" : "10.9254"
-            },
-            {
-                "key" : "Manufacturer",
-                "value" : "KFramework"
-            },
-            {
-                "key" : "Model",
-                "value" : "KImageFormats"
-            }
-        ],
-        "resolution" : {
-            "dotsPerMeterX" : 11811,
-            "dotsPerMeterY" : 5905
-        }
-    }
-]

autotests/read/dds/earth-cubemap.license

@@ -1,2 +0,0 @@
-SPDX-FileCopyrightText: Copyright (c) 2006 - 2010 The Open Toolkit library.
-SPDX-License-Identifier: MIT

autotests/read/dds/rgba16dx10.dds.json

@@ -1,7 +0,0 @@
-[
-    {
-        "fileName" : "rgba16dx10.png",
-        "fuzziness" : 1,
-        "description" : "Minimum fuzziness value to pass the test on all architectures."
-    }
-]

autotests/read/dds/rgba_f16.dds.json

@@ -1,7 +0,0 @@
-[
-    {
-        "fileName" : "rgba_f16.png",
-        "fuzziness" : 1,
-        "description" : "Minimum fuzziness value to pass the test on all architectures."
-    }
-]

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

@@ -1,9 +0,0 @@
-[
-    {
-        "fileName" : "rgb-gimp.png",
-        "resolution" : {
-            "dotsPerMeterX" : 3937,
-            "dotsPerMeterY" : 3937
-        }
-    }
-]

autotests/read/hdr/orientation1.hdr.json

@@ -1,11 +1,5 @@
 [
     {
-        "fileName" : "orientation_all.png",
+        "fileName" : "orientation_all.png"
-        "metadata" : [
-            {
-                "key" : "Software" ,
-                "value" : "GEGL"
-            }
-        ]
     }
 ]

autotests/read/hdr/orientation2.hdr.json

@@ -1,11 +1,5 @@
 [
     {
-        "fileName" : "orientation_all.png",
+        "fileName" : "orientation_all.png"
-        "metadata" : [
-            {
-                "key" : "Software" ,
-                "value" : "GEGL"
-            }
-        ]
     }
 ]

autotests/read/hdr/orientation3.hdr.json

@@ -1,11 +1,5 @@
 [
     {
-        "fileName" : "orientation_all.png",
+        "fileName" : "orientation_all.png"
-        "metadata" : [
-            {
-                "key" : "Software" ,
-                "value" : "GEGL"
-            }
-        ]
     }
 ]

autotests/read/hdr/orientation4.hdr.json

@@ -1,11 +1,5 @@
 [
     {
-        "fileName" : "orientation_all.png",
+        "fileName" : "orientation_all.png"
-        "metadata" : [
-            {
-                "key" : "Software" ,
-                "value" : "GEGL"
-            }
-        ]
     }
 ]

autotests/read/hdr/orientation5.hdr.json

@@ -1,11 +1,5 @@
 [
     {
-        "fileName" : "orientation_all.png",
+        "fileName" : "orientation_all.png"
-        "metadata" : [
-            {
-                "key" : "Software" ,
-                "value" : "GEGL"
-            }
-        ]
     }
 ]

autotests/read/hdr/orientation6.hdr.json

@@ -1,11 +1,5 @@
 [
     {
-        "fileName" : "orientation_all.png",
+        "fileName" : "orientation_all.png"
-        "metadata" : [
-            {
-                "key" : "Software" ,
-                "value" : "GEGL"
-            }
-        ]
     }
 ]

autotests/read/hdr/orientation7.hdr.json

@@ -1,11 +1,5 @@
 [
     {
-        "fileName" : "orientation_all.png",
+        "fileName" : "orientation_all.png"
-        "metadata" : [
-            {
-                "key" : "Software" ,
-                "value" : "GEGL"
-            }
-        ]
     }
 ]

autotests/read/hdr/orientation8.hdr.json

@@ -1,11 +1,5 @@
 [
     {
-        "fileName" : "orientation_all.png",
+        "fileName" : "orientation_all.png"
-        "metadata" : [
-            {
-                "key" : "Software" ,
-                "value" : "GEGL"
-            }
-        ]
     }
 ]

autotests/read/heif/metadata.heif.json

@@ -1,59 +0,0 @@
-[
-    {
-        "fileName" : "metadata.png",
-        "metadata" : [
-            {
-                "key" : "ModificationDate",
-                "value" : "2025-02-26T16:52:06Z"
-            },
-            {
-                "key" : "Software" ,
-                "value" : "LIFE Pro 2.18.10 (Linux)"
-            },
-            {
-                "key" : "Altitude",
-                "value" : "34"
-            },
-            {
-                "key" : "Author",
-                "value" : "KDE Project"
-            },
-            {
-                "key" : "Copyright",
-                "value" : "@2025 KDE Project"
-            },
-            {
-                "key" : "Description",
-                "value" : "TV broadcast test image."
-            },
-            {
-                "key" : "Latitude",
-                "value" : "44.6478"
-            },
-            {
-                "key" : "LensManufacturer",
-                "value" : "KDE Glasses"
-            },
-            {
-                "key" : "LensModel",
-                "value" : "A1234"
-            },
-            {
-                "key" : "Longitude",
-                "value" : "10.9254"
-            },
-            {
-                "key" : "Manufacturer",
-                "value" : "KFramework"
-            },
-            {
-                "key" : "Model",
-                "value" : "KImageFormats"
-            }
-        ],
-        "resolution" : {
-            "dotsPerMeterX" : 11811,
-            "dotsPerMeterY" : 5905
-        }
-    }
-]

autotests/read/jp2/testcard_cmyk.jp2.json

@@ -1,11 +0,0 @@
-[
-    {
-        "minQtVersion" : "6.8.0",
-        "fileName" : "testcard_cmyk.tif"
-    },
-    {
-        "maxQtVersion" : "6.7.99",
-        "unsupportedFormat" : true,
-        "comment" : "Qt versions lower than 6.8 do not support CMYK format so this test should be skipped."
-    }
-]

autotests/read/jp2/testcard_cmyk16.jp2.json

@@ -1,11 +0,0 @@
-[
-    {
-        "minQtVersion" : "6.8.0",
-        "fileName" : "testcard_cmyk16.tif"
-    },
-    {
-        "maxQtVersion" : "6.7.99",
-        "unsupportedFormat" : true,
-        "comment" : "Qt versions lower than 6.8 do not support CMYK format so this test should be skipped."
-    }
-]