Release 2.4.7.1 (3 Jan 2023) -- compared to 2.4.7.0
----------------------------------------------------
* Fix build break for Mac ARM. #3735
* CMake config should not include a find of fmt if it's internalized. #3739
Release 2.4.7.0 (1 Jan 2023) -- compared to 2.4.6.0
----------------------------------------------------
* IOMemReader detects and errors for out-of-range read positions. #3712
* Build/Mac: Suppress some deprecation warnings when building wth the newest
Apple clang. #3709 #3710
* ARM: Fix signed/unsigned SIMD mismatch in vbool4::load. #3722
* Build: New CMake variable `INTERNALIZE_FMT`, when set to OFF will ensure
that the fmt headers are not internalized (copied to the installed part
of OIIO). The default is ON, matching old behavior. #3598
* Testing: Improved testing of iinfo #3688 #3706, 'term' output #3714, igrep
#3715.
* build_openexr.bash: bump default version of OpenEXR/Imath retrieved to be
3.1.5. #3703
* span.h: Make sure the cspan alias also allows the Extent template
argument; add a custom formatter to print spans. #3685
* ustring.h: `#if` guards to let the header be Cuda-safe. #3718
* Internals: refactoring to remove duplicated code for iinfo and
`oiiotool --info`. #3688
* Internals: remove the last instances of unsafe std::sprintf. #3705
Release 2.4.6 (1 Dec 2022) -- compared to 2.4.5.0
---------------------------------------------------
* make_texture / maketx : ensure proper setting of certain metadata when
using a texture as a source to build another texture. #3634
* Build: Make sure use of `${PROJECT_NAME}` doesn't occur before the call to
`project()`. #3651
* Fix null pointer dereference when OCIO no configuration is found. #3652
* Support for building against OpenColorIO 2.2. #3662
* Fixes to subtle bugs when ImageBuf is used with IOProxy. #3666
* oiiotool: Fix problems with `--point` when there is no alpha channel. #3684
* oiiotool: `--dumpdata` fix channel name output. #3687
* BMP: Fix possible write errors, fixes TALOS-2022-1653 / CVE-2022-43594,
CVE-2022-43595. #3673
* DPX: Fix possible write errors, fixes TALOS-2022-1651 / CVE-2022-43592 and
TALOS-2022-1652 / CVE-2022-43593. #3672
* IFF files: Add IOProxy support. #3647
* IFF: Fix possible write errors, fixes TALOS-2022-1654 / CVE-2022-43596,
TALOS-2022-1655 / CVE-2022-43597 CVE-2022-43598, TALOS-2022-1656 /
CVE-2022-43599 CVE-2022-43602 #3676
* PSD: Fix thumbnail extraction. #3668
* PSD: when reading, don't reject padded thumbnails. #3677
* Raw: Update Exif orientation if user flip is set. #3669
* Zfile write safety, fixes TALOS-2022-1657 / CVE-2022-43603. #3670
* filesystem.h: new `Filesystem::is_executable()` and `find_program()`. #3638
* filesystem.h: Change IOMemReader constructor to take a const buffer
pointer. #3665
* strutil.h: new `trimmed_whitspace()`. #3636
* New `OIIO::print()` exposes `Strutil::print()` in the main OIIO namespace.
#3667
* Testing: improved testing of oiiotool #3637 #3643 #3649, Strutil #3655
Release 2.4.5 (1 Nov 2022) -- compared to 2.4.4.2
---------------------------------------------------
* oiiotool: new commands `--iccread` reads a named file and adds its contents
as the ICCProfile metadata of the top image, `--iccwrite` saves the
ICCProfile metadata of the top file to a named file. #3550
* TIFF, JPEG, JPEG-2000, PNG, and PSD files containing ICC profiles now
extract and report extra metadata related to aspects of those profiles.
#3554
* Python: support `int8[]` metadata and retrieving the `ICCPorofile` metadata.
#3556
* oiiotool: New expression syntax for retrieving metadata `{TOP[foo]}` is
similar to the existing `{TOP.foo}`, if there is no `foo` metadata found,
the former evaluates to an empty string, whereas the latter is an error.
#3619
* Strutil: new `utf16_to_utf8(const std::u16string&)` and
`Strutil::utf8_to_utf16wstring()`. #3553
* ustring: make `std::hash` work for ustring, add `operator<` for ustringhash,
add `from_hash()` to ustringhash, make ustringhash `==` and `!=` be
constexpr for C++17 and beyond. #3577 Custom fmt formatter for ustringhash
that prints the string rather than the hash. #3614
* Build: the version number is now a CMake cache variable that can be
overridden (caveat emptor). #3549
* Build/security: New CMake cache variable `FORTIFY_SOURCE`, if enabled,
builds with the specified gcc `_FORTIFY_SOURCE` option defined. This may be
desirable for people deploying OIIO in security-sensitive environments.
#3575
* CI: testing now includes using undefined behavior sanitizer. #3565
* Windows: protect against OpenEXR thread deadlock on shutdown. #3582
* Windows: Work around a static destruction order issue. #3591
* Windows: define `NOGDI` to keep the inclusion of windows.h from adding as
many unneeded symbols. #3596
* MinGW: fix incorrect symbol visibility issue for ImageBuf iterators. #3578
* ARM: improve SIMD operations for ARM NEON. #3599
* Docs: New RELEASING.md documents our releasing procedures. #3564 #3580
* Docs: Better Windows build instructions in INSTALL.md. #3602
* Fix missing OIIO::getattribute support for `limits:channels` and
`limits:imagesize_MB`. #3617
* BMP: fix reading 16bpp images. #3592
* BMP: protect against corrupt pixel coordinates. (TALOS-2022-1630,
CVE-2022-38143) #3620
* DDS: fix alpha/luminance files, better testing. #3581
* DDS: optimize loading of compressed images, improves 3-5x. #3583 #3584
* DDS: Fix crashes for cubemap files when a cube face was not present, and
check for invalid bits per pixel. (TALOS-2022-1634, CVE-2022-41838)
(TALOS-2022-1635, CVE-2022-41999) #3625
* HDR: fix a 8x (!) read performance regression for HDR files that was
introduced in OIIO in 2.4. #3588 On top of that, speed up by another 4x
beyond what we ever did before by speeding up the RGBE->float conversion.
#3590
* PNG: fix memory leaks when errors take an early exit. #3543 #3544
* PSD: fix a PSD read error on ARM architecture. #3589
* PSD: protect against corrupted embedded thumbnails. (TALOS-2022-1626,
CVE-2022-41794) #3629
* RAW: additional color metadata is now recognized: `pre_mul`, `cam_mul`,
`cam_xyz`, `rgb_cam`. #3561 #3569 #3572
* RLA: fix potential buffer overrun. (TALOS-2022-1629, CVE-2022-36354) #3624
* Targa: string overflow safety. (TALOS-2022-1628, CVE-2022-4198) #3622
* TIFF/JPEG/PSD: Fix EXIF bugs where corrupted exif blocks could overrun
memory. (TALOS-2022-1626, CVE-2022-41794) (TALOS-2022-1631, CVE-2022-41649)
(TALOS-2022-1632, CVE-2022-41684) (TALOS-2022-1636 CVE-2022-41837) #3627
* TIFF: guard against corrupt files with buffer overflows. (TALOS-2022-1627,
CVE-2022-41977) #3628
* TIFF: guard against buffer overflow for certain CMYK files.
(TALOS-2022-1633, CVE-2022-41639) (TALOS-2022-1643, CVE-2022-41988) #3632
Release 2.4.4.2 (3 Oct 2022) -- compared to 2.4.4.1
---------------------------------------------------
* DDS: Improved support for DTX5, ATI2/BC5 normal maps, R10G10B10A2
format, RXGB, BC4U, BC5U, A8, improved low bit expansion to 8 bits.
#3573 (2.4.4.2)
* DDS: Fix possible heap overflow on input. #3542 (2.4.4.2)
Release 2.4 (1 Oct 2022) -- compared to 2.3
----------------------------------------------
New minimum dependencies and compatibility changes:
* OpenEXR minimum is now 2.3 (raised from 2.0). #3109 (2.4.0)
* Field3D support has been removed entirely. The Field3D library appears to be
no longer maintained, and is incompatible with modern versions of
OpenEXR/Imath. We believe that all prior uses of Field3D use via OIIO have
been migrated to OpenVDB. #3151 (2.4.0)
New major features and public API changes:
* Imath header and class hiding:
- Header includes have been shuffled around so that Imath headers are not
included from OIIO headers where they are not needed, and some OIIO
headers that need Imath types only for few function parameters now guard
those functions with `#if` so that Imath-taking functions are not
visible unless the calling app has previously had an `#include` of
Imath. If your app uses Imath types but did not include the right Imath
headers (relying on the accidental fact of other OIIO headers
transitively including them), you may need to adjust your includes.
#3301 #3332 (2.4.0.2) #3406 #3474 (2.4.2)
- New `V3fParam`, `M33fParam`, and `M44Param` (defined in vecparam.h) are
used just for parameter passing in public APIs, instead of Imath::V3f,
M33f, or M44f, in order to more fully hide Imath types from our public
interfaces. These are only parameter-passing classes, and are not useful
as vector or matrix classes in their own right. But they seamlessly cast
to and from other vector- and matrix-like classes. #3330 (2.4.1.0)
- `OPENIMAGEIO_IMATH_DEPENDENCY_VISIBILITY` is a new CMake cache variable
at OIIO build time that controls whether the Imath library dependencies
will be declared as PUBLIC (default) or PRIVATE target dependencies of
libOpenImageIO and libOpenImageIO_Util. #3322 (4.2.0.2) #3339 (4.2.0.3)
- For *downstream projects* that consume OIIO's exported cmake config
files, setting CMake variable `OPENIMAGEIO_CONFIG_DO_NOT_FIND_IMATH` to
ON will skip the find_depencency() calls for Imath and OpenEXR. To
clarify, this is not a variable that has any effect when building OIIO,
it's something set in the downstream project itself. #3322 (4.2.0.2)
* The dithering that happens when saving high bit depth image data to low bit
depth formats has been improved in several ways. It now applies when writing
>8 bit data to <= 8 bit files, not just when the source is float or half.
The dither pattern is now based on blue noise, and this dramatically
improves the visual appearance. #3141 (2.4.0/2.3.10)
* TextureSystem now supports stochastic sampling. If the new TextureOpt field
`rnd` (which now defaults to -1.0) is set to a value >= 0, the filtered
texture lookup can use stochastic sampling to save work. The shading system
attribute "stochastic" is set to the stochastic strategy: 0 = no stochastic
sampling; 1 = for trilinear or anisotropic MIP modes, choose one MIP level
stochastically instead of blending between two levels; 2 = for anisotropic
mode, use just one anisotropic sample, chosen across the filter axis. (This
is a bit field, so 3 combines both strategies.) We measure this speeding up
texture lookups by 25-40%, though with more visual noise (which should be
resolved cleanly by a renderer that uses many samples per pixel). This
should only used for texture lookups where many samples per pixel will be
combined, such as for surface or light shading. It should not be used for
texture lookups that must return a single correct value (such as for
displacement, when each grid position is sampled only once). Even when the
"stochastic" attribute is nonzero, any individual texture call may be made
non-stochastic by setting TextureOpt.rnd to a negative value. #3127
(2.4.0/2.3.10) #3457 (2.4.2)
* maketx/make_texture() now supports options to store Gaussian forward and
inverse transform lookup tables in image metadata (must be OpenEXR textures
for this to work) to aid writing shaders that use histogram-preserving
blending of texture tiling. This is controlled by new maketx arguments
`--cdf`, `--cdfsigma`, `--sdfbits`, or for `IBA::make_texture()` by using
hints `maketx:cdf`, `maketx:cdfsigma`, and `maketx:cdfbits`. #3159 #3206
(2.4.0/2.3.10)
* oiiotool new commands and features:
- Control flow via `--if`, `--else`, `--endif`, `--while`, `--endwhile`,
`--for`, `--endfor` let you prototypes conditional execution and loops
in the command sequence. #3242 (2.4.0)
- `--set` can set variables and their values can be retrieved in
expressions. #3242 (2.4.0)
- Expressions now support: numerical comparisons via `<`, `>`, `<=`, `>=`,
`==`, `!=`, `<=>`; logical operators `&&`, `||`, `!`, `not()`; string
comparison functions `eq(a,b)` and `neq()`. #3242 #3243 (2.4.0)
- `--oiioattrib` can set "global" OIIO control attributes for an oiiotool
run (equivalent of calling `OIIO::attribute()`). #3171 (2.4.0/2.3.10)
- `--repremult` exposes the previously existing `IBA::repremult()`. The
guidance here is that `--premult` should be used for one-time conversion
of "unassociated alpha/unpremultiplied color" to
associated/premultiplied, but when you are starting with a premultiplied
image and have a sequence of unpremultiply, doing some adjustment in
unpremultiplied space, then re-premultiplying, it's `--repremult` you
want as the last step, because it preserves alpha = 0, color > 0 data
without crushing it to black. #3192 (2.4.0/2.3.10)
- `--saturate` can adjust saturation level of a color image. #3190
(2.4.0/2.3.10)
- `--maxchan` and `--minchan` turn an N-channel image into a 1-channel
images that for each pixel, contains the maximum value in any channel of
the original for that pixel. #3198 (2.4.0/2.3.10)
- `--point` lets you color one or more pixels in an image (analogous to
IBA::render_point). #3256 (2.4.0)
- `--warp` now takes an optional modifier `:wrap=...` that lets you set
which wrap mode to use when sampling past the edge of the source image.
#3341 (2.4.0.3)
- New `--st_warp` performs warping of an image where a second image gives
the (s,t) coordinates to look up from at every pixel. #3379
(2.4.2/2.3.14)
- Many attribute actions now take optional modifier `:subimages=` that
instructs oiiotool to apply to a particular subset of subimges in
multi-subimage files (such as multi-part exr). The commands so enabled
include `--attrib`, `--sattrib`, `--eraseattrib`, `--caption`,
`--orientation`, `--clear-keywords`, `--iscolorspace`. The default, if
subimages are not specified, is to only change the attributes of the
first subimage, unless `-a` is used, in which case the default is to
change the attributes of all subimages. #3384 (2.4.2)
* ImageSpec :
- New constructors to accept a string for the data type. #3245
(2.4.0/2.3.12)
* ImageBuf/ImageBufAlgo :
- `IBA::saturate()` can adjust saturation level of a color image. #3190
(2.4.0/2.3.10)
- `IBA::maxchan()` and `minchan()` turn an N-channel image into a
1-channel images that for each pixel, contains the maximum value in any
channel of the original for that pixel. #3198 (2.4.0/2.3.10)
- New `IBA::st_warp()` performs warping of an image where a second image
gives the (s,t) coordinates to look up from at every pixel. #3379
(2.4.2/2.3.14)
- `IBA::bluenoise_image()` returns a reference to a periodic blue noise
image. #3141 #3254 (2.4.0/2.3.10)
* ImageCache / TextureSystem :
- IC/TS both have added a `getattributetype()` method, which retrieves
just the type of a named attribute. #3559 (2.4.4.0)
* Python bindings:
- New ImageBuf constructor and reset() from a NumPy array only -- it
deduces the resolution, channels, and data type from the array
dimensions and type. #3246 (2.4.0/2.3.12)
- ROI now has a working `copy()` method. #3253 (2.4.0/2.3.12)
- ImageSpec and ParamValueList now support `'key' in spec`, `del
spec['key']`, and `spec.get('key', defaultval)` to more fully emulate
Python `dict` syntax for manipulating metadata. #3252 (2.3.12/2.4.0)
- Support uint8 array attributes in and out. This enables the proper
Python access to "ICCProfile" metadata. #3378 (2.4.1.0/2.3.14)
- New `ImageSpec.get_bytes_attribute()` method is for string attributes,
but in Python3, skips decoding the underlying C string as UTF-8 and
returns a `bytes` object containing the raw byte string. #3396 (2.4.2)
- Fixes for Python 3.8+ to ensure that it can find the OpenImageIO module
as long as it's somewhere in the PATH. This behavior can be disabled by
setting environment variable `OIIO_LOAD_DLLS_FROM_PATH=0`. #3470
(2.4.0/2.3.18)
* New global OIIO attributes:
- `"try_all_readers"` can be set to 0 if you want to override the default
behavior and specifically NOT try any format readers that don't match
the file extension of an input image (usually, it will try that one
first, but it if fails to open the file, all known file readers will be
tried in case the file is just misnamed, but sometimes you don't want it
to do that). #3172 (2.4.0/2.3.10)
- `"use_tbb"` if nonzero, and if OIIO was built with TBB enabled and
found, then will use the TBB thread pool instead of the OIIO internal
thread pool. #3473 (2.4.2.2)
- `"version"` (read only) now retrieves the version string. #3534
(2.3.19.0/2.4.2.2)
* Full IOProxy support has been added to TIFF #3075 (2.4.0/2.3.8), JPEG, GIF
#3181 #3182 (2.4.0/2.3.10), DDS #3217, PNM #3219, PSD #3220, Targa #3221,
WebP #3224, BMP #3223, JPEG-2000 #3226 (2.4.0).
* Convention change: Image readers who wish to convey that the color space of
an input image is a simple gamma-corrected space will now call the color
space "GammaX.Y" (previously we sometimes used this, but sometimes called it
"GammaCorrectedX.Y"). #3202 (2.4.0)
* `oiioversion.h` now defines symbols `OIIO_USING_IMATH_VERSION_MAJOR` and
`OIIO_USING_IMATH_VERSION_MINOR` that reveal which Imath version was used
internally to OIIO when it was build (which may be different than the
version found when the downstream app is being compiled). #3305 (2.4.0.1)
* Most of the major APIs (including ImageInput, ImageOutput, and ImageBuf)
that took a std::string or string_view to indicate a filename (assumed to
support UTF-8 encoding of Unicode filenames) now have additional versions
that directly take a `std::wstring`, thus supporting UTF-16 Unicode
filenames as "wide strings". #3312 #3318 (2.4.0.1)
* The ColorConfig API adds new calls `getDisplayViewColorSpaceName()` and
`getDisplayViewLooks()` that expose the underlying OpenColorIO
functionality. #3319 (2.4.0.2)
* Many long-deprecated functions in imageio.h and imagbufalgo.h are now
marked as OIIO_DEPRECATED, and therefore may start to generate warnings
if used by downstream software. #3328 (2.4.1.0)
Performance improvements:
* Raise the default ImageCache default tile cache from 256MB to 1GB. This
should improve performance for some operations involving large images or
images with many channels. #3180 (2.4.0/2.3.10)
* Performance of JPEG-2000 I/O is improved by 2-3x due to multithreading,
but only if you are using a sufficiently new version of OpenJPEG (2.2
for encoding, 2.4 for decoding). #2225 (2.3.11/2.4.0)
* Dramatically speed up (50-100x) the implementation of Strutil iequals,
iless, starts_with, istarts_with, ends_with, iends_with. This in turn speeds
up ParamValueList find/get related methods, ImageSpec find/get methods, and
TS::get_texture_info. #3388 (2.4.1.1)
* Renderer users of the TextureSystem might see up to a ~40% speedup if
using the new stochastic sampling features. #3127 #3457
* Speed up reading of uncompressed DDS images by about 3x. #3463 (2.4.2.0)
Fixes and feature enhancements:
* ImageSpec:
- Implemented deserialization of extra_attribs from XML. #3066 (2.4.0/2.3.8)
- Allow `getattribute("format")` to retrieve the name of the pixel data
type. #3247 (2.4.0)
* ImageInput / ImageOutput:
- Protected methods that make it easier to implement support for IOProxy
in image readers and writers. #3231 (2.4.0)
- Fix crash when ioproxy is passed to a plugin that doesn't support it.
#3453 (2.4.2)
* ImageBuf / ImageBufAlgo:
- Fix ImageBuf::read bug for images of mixed per-channel data types. #3088
(2.4.0/2.3.8)
- `IBA::noise()` now takes "blue" as a noise name. Also, "white" is now
the preferred name for what used to be "uniform" (which still works as a
synonym). #3141 (2.4.0/2.3.10)
- Refactor ImageBuf::Iterator, ConstIterator templates, reduces compile
time substantially. #3195 (2.4.0)
- IBA functions taking a `cspan<>` now more flexibly can be passed
an init list like `{ 0.2f, 0.4f, 0.5f }` instead of needing to wrap it
in a `cspan<float>()` constructor. #3257 (2.3.12/2.4.0)
- `make_texture()`: ensure that "maketx:ignore_unassoc" is honored.
#3269 (2.4.0.1/2.3.12)
- `IBA::computePixelStats()` improved precision. #3353 (2.4.1.0/2.3.14)
- `IBA::isConstantColor()` is faster -- now if one thread finds its
portion not constant, it can signal the other threads to stop
immediately instead of completing their regions. #3383 (2.4.1.1)
- A new flavor of `IBA::compare()` allows relative as well as absolute
error thresholds. #3508 (2.3.19.0/2.4.2.2)
* ImageCache / TextureSystem / maketx:
- When textures are created with the "monochrome_detect" feature enabled,
which turns RGB textures where all channels are always equal into true
single channel greyscale, the single channel that results is now
correctly named "Y" instead of leaving it as "R" (it's not red, it's
luminance). #3205 (2.4.0/2.3.10)
- Enhance safety/correctness for untiled images that exceed 2GB size
(there was an integer overflow problem in computing offsets within
tiles). #3232 (2.3.11/2.4.0)
- Improve error propagation from ImageCache to higher levels, especially
for tile-reading errors encountered during ImageBuf iterator use, and
ImageCache errors encountered when using the TextureSystem. #3233
(2.4.0)
- Support an additional UDIM pattern `<UVTILE>`, which is specified by
MaterialX. #3280 #3285 (2.3.12/2.4.0.1)
- Add support for UDIM pattern `<uvtile>` (used by Clarisse & V-Ray). #3358
(2.4.1.0/2.3.14)
- The `maketx --handed` option, or `oiiotool -attrib -otex:handed=...`, or
adding "handed" metadata to the configuration ImageSpec being passed to
`IBA::make_texture()` is now supported for communicating the handedness
of a vector displacement or normal map. #3331 (2.4.0.2)
- Speed up UDIM lookups by eliminating internal mutex. #3417 (2.4.0)
- TextureSystem: Fix typo that prevented "max_tile_channels" attribute from
being set or retrieved. (2.4.2/2.3.17)
* oiiotool:
- `--ch` now has virtually no expense if the arguments require no change
to the channel order or naming (previously, it would always incur an
image allocation and copy even if no real work needed to be done). #3068
(2.4.0/2.3.8)
- `--ch` now warns if you specify a channel name that was not present
in the input image. #3290 (2.4.0.1)
- `--runstats` timing report has been improved and now more accurately
attributes time to each operation. In particular, input I/O is now
credited to "-i" rather than being incorrectly attributed to the other
ops that happen to trigger I/O of previously mentioned files. #3073
(2.4.0/2.3.8)
- Allow quotes in command modifiers. #3112 (2.4.0/2.3.9)
- Fix `--dumpdata` getting the formatting of floating point values wrong.
#3131 (2.4.0/2.3.9)
- `--dumpdata:C=name` causes the dumped image data to be formatted with
the syntax of a C array. #3136 (2.4.0/2.3.9)
- `--noise` now takes "blue" as an additional noise type. #3141
(2.4.0/2.3.10)
- `-d` now accepts "uint1", "uint2", "uint4", and "uint6" for formats that
support such low bit depths (TIFF). #3141 (2.4.0/2.3.10)
- `--invert` fixed to avoid losing the alpha channel values. #3191
(2.4.0/2.3.10)
- Fix bug when autocropping output images when the entire pixel data
window is in the negative coordinate region. #3164 (2.4.0/2.3.10)
- Improved detection of file reading failures. #3165 (2.4.0/2.3.10)
- All commands that do filtering (--rotate, --warp, --reize, --fit, and
--pixelaspect) now accept optional modifier `:highlightcomp=1` to enable
"highlight compensation" to avoid ringing artifacts in HDR images with
very high-contrast regions. #3239 (2.4.0)
- `--pattern checker` behavior has changed slightly: if the optional
modifier `:width=` is specified but `:height=` is not, the height will
be equal to the width. #3255 (2.4.0)
- `--pixelaspect` fixes setting of the "PixelAspectRatio", "XResolution",
and "YResolution" metadata, they were not set properly before. #3340
(2.4.0.3)
- Fix bug that prevented metadata from being able to print as XML. #3499
(2.4.2.2)
- `i:ch=...` fixes crashes, and also improves the warning message in cases
where the requested channels don't exist in the source image. #3513
(2.4.2.2)
* Python bindings:
- Subtle/asymptomatic bugs fixed in `ImageBufAlgo.color_range_check()` and
`histogram()` due to incorrect release of the GIL. #3074 (2.4.0)
- Bug fix for `ImageBufAlgo.clamp()`: when just a float was passed for the
min or max, it only clamped the first channel instead of all channels.
#3265 (2.3.12/2.4.0)
- Fix the ability to `getattribute()` of int64 and uint64 metadata or
attributes. #3555 (2.4.4.0)
* idiff:
- `--allowfailures` allows that number of failed pixels of any magnitude.
#3455 (2.4.2)
- `--failrelative` and `--warnrelative` allows the failure and warning
threshold to use a symmetric mean relative error (rather than the
absolute error implied by the existing `--fail` and `--warn` arguments).
#3508 (2.3.19.0, 2.4.2.2)
* BMP:
- IOProxy support. #3223 (2.4.0)
- Support for additional (not exactly fully documented) varieties used by
some Adobe apps. #3375 (2.4.1.0/2.3.14)
- Better detection of corrupted files with nonsensical image dimensions or
total size. #3434 (2.4.2/2.3.17/2.2.21)
- Protect against corrupted files that have palette indices out of bound.
#3435 (2.4.2/2.3.17/2.2.21)
* DDS:
- Don't set "texturetype" metadata, it should always have been only
"textureformat". Also, add unit testing of DDS to the testsuite. #3200
(2.4.0/2.3.10)
- IOProxy support. #3217 (2.4.0)
- Add support for BC4-BC7 compression methods. #3459 (2.4.2)
- Speed up reading of uncompressed DDS images (by about 3x). #3463
- Better handling of cube maps with MIPmap levels. #3467 (2.4.0)
- For 2-channel DDS files, label them as Y,A if the flags indicate
luminance and/or alpha, otherwise label them as R,G. #3530 (2.4.2.2)
- Do not set "oiio:BitsPerSample" for cases where the dds.fmt.bpp field is
not assumed to be valid. MS docs say it's valid only if the flags field
indicates RGB, LUMINANCE, or YUV types. #3530 (2.4.2.2)
* FFMpeg
- Now uses case-insensitive tests on file extensions, so does not get
confused on Windows with all-caps filenames. #3364 (2.4.1.0/2.3.14)
- Take care against possible double-free of allocated memory crash upon
destruction. #3376 (2.4.1.0/2.3.14)
* GIF
- IOProxy support. #3181 (2.4.0/2.3.10)
* HDR:
- IOProxy support. #3218 (2.4.0)
* HEIF:
- Handle images with unassociated alpha. #3146 (2.4.0/2.3.9)
* JPEG:
- IOProxy support. #3182 (2.4.0/2.3.10)
- Better handling of PixelAspectRatio. #3366 (2.4.1.0)
- Fix multithreaded race condition in read_native_scanline. #3495
(2.4.2.2)
- Fix bug in XRes,YRes aspect ratio logic. #3500 (2.4.2.2)
- When asked to output 2-channel images (which JPEG doesn't support), use
the channel names to decide whether to drop the second channel (if it
seems to be a luminance/alpha image) or add a third black channel (other
cases). #3531 (2.4.2.2)
* JPEG2000:
- Enable multithreading for decoding (if using OpenJPEG >= 2.2) and
encoding (if using OpenJPEG >= 2.4). This speeds up JPEG-2000 I/O by
3-4x. #2225 (2.3.11/2.4.0)
- IOProxy support. #3226 (2.4.0)
- Better detection and error reporting of failure to open the file.
#3440 (2.4.2)
* OpenEXR:
- When building against OpenEXR 3.1+ and when the global OIIO attribute
"openexr:core" is set to nonzero, do more efficient multithreaded
reading of OpenEXR files. #3107 (2.4.0/2.3.9.1)
- Fix excessive memory usage when saving EXR files with many channels.
#3176 (2.4.0/2.3.10)
- When building against OpenEXR >= 3.1.3, our OpenEXR output now supports
specifying the zip compression level (for example, by passing the
"compression" metadata as "zip:4"). Also note than when using OpenEXR >=
3.1.3, the default zip compression has been changed from 6 to 4, which
writes compressed files significantly (tens of percent) faster, but only
increases compressed file size by 1-2%. #3157 (2.4.0/2.3.10) Fixes in
#3387 (2.4.1.1)
- Fix writing deep exrs when buffer datatype doesn't match the file. #3369
(2.4.1.0/2.3.14)
* PNG:
- Assume sRGB color space as default when no color space attribute is
in the file. #3321 (2.4.0.2/2.3.13)
- Improve error detection and propagation for corrupt/broken files. #3442
(2.4.2)
- Improve error detection and messages when writing PNG files, for various
kinds of errors involving metadata. #3535 (2.4.2.2)
* PPM:
- Mark all PPM files as Rec709 color space, which they are by
specification. #3321 (2.4.0.2/2.3.13)
* PSD:
- IOProxy support. #3220 (2.4.0)
- Better error messages for corrupted files and other failures. #3469
(2.4.0)
* RAW:
- When using libraw 0.21+, now support new color space names "DCE-P3",
"Rec2020", and "sRGB-linear", and "ProPhoto-linear". Fix incorrect gamma
values for "ProPhoto". #3123 #3153 (2.4.0/2.3.9.1)
* RLA:
- Better guards against malformed input. #3163 (2.4.0/2.3.10)
* Targa:
- Improved error detection for read errors and corrupted files. #3120
(2.4.0/2.3.9.1) #3162 (2.4.0/2.3.10)
- Fixed bug when reading x-flipped images. #3162 (2.4.0/2.3.10)
- IOProxy support. #3221 (2.4.0)
- Better interpretation of TGA 1.0 files with alpha that is zero
everywhere. Be more consistent with Targa attributes all being called
"targa:foo". Add "targa:version" to reveal whether the file was TGA 1.0
or 2.0 version of the format. #3279 (2.4.0.1/2.3.12)
- Fix parsing of TGA 2.0 extension area when the software name was
missing form the header. #3323 (2.4.0.2/2.3.13)
- Fix reading of tiny 1x1 2-bpp Targa 1.0 images. #3433 (2.3.17/2.2.21)
* Socket imageio plugin has been removed entirely, it never was completed or
did anything useful. #3527 (2.3.2.2)
* TIFF:
- IOProxy is now supported for TIFF output. #3075 (2.4.0/2.3.8)
- Honor zip compression quality request when writing TIFF. #3110
(2.4.0/2.3.11)
- Automatically switch to "bigtiff" format for really big (> 4GB) images.
#3158 (2.4.0)
- Support for palette images with 16 bit palette indices. #3262
(2.4.0/2.3.12)
- Gracefully handle missing ExtraSamples tag. #3287 (2.4.0.1/2.3.12)
- New output configuration hint: "tiff:write_extrasamples" (default: 1),
if set to 0, will cause the TIFF output to NOT include the required
EXTRASAMPLES tag in the header. This is not recommended, but fixes
a specific problem in some circumstances where PhotoShop misbehaves
when the extrasamples tag is present. #3289 (2.4.0.1)
- No longer write IPTC blocks to the TIFF header by default, it caused
trouble and was sometimes corrupted. You can force it to write an IPTC
block by using the output open configuration hint "tiff:write_iptc" set
to nonzero. #3302 (2.4.0.1)
- Fix read problems with TIFF files with non-zero y offset. #3419
(2.3.17/2.4.2)
- Fixed some longstanding issues with IPTC data in the headers. #3465
(2.4.0)
- Protect against crashes with certain empty string attributes. #3491
(2.4.2.1)
* WebP:
- Fix previous failure to properly set the "oiio:LoopCount" metadata
when reading animated webp images. #3183 (2.4.0/2.3.10)
- IOProxy support. #3224 (2.4.0)
* Better catching of exceptions thrown by OCIO 1.x if it encounters 2.0 config
files. #3089 (2.4.0/2.3.9)
* Improved internal logic and error reporting of missing OCIO configs. #3092
#3095
* Improved finding of fonts (by IBA::render_text and oiiotool --text). It now
honors environment variable `$OPENIMAGEIO_FONTS` and global OIIO attribute
"font_searchpath" to list directories to be searched when fonts are needed.
#3096 (2.4.0/2.3.8)
* Fix crash that could happen with invalidly numbered UDIM files. #3116
(2.4.0/2.3.9)
* Fix possible bad data alignment and SIMD assumptions inside TextureSystems
internals. #3145 (2.4.0/2.3.9)
* Update internal stb_printf implementation (avoids some sanitizer alerts).
#3160 (2.4.0/2.3.10)
* Replace the few remaining instances of `sscanf` in the codebase with Strutil
utilities that are guaranteed to be locale-independent. #3178 (2.4.0)
* Security: New global OIIO attributes "limits:channels" (default: 1024) and
"limits:imagesize_MB" (default: 32768, or 32 GB) are intended to reject
input files that exceed these limits, on the assumption that they are either
corrupt or maliciously constructed, and would, if read, lead to absurd
allocations, crashes, or other mayhem. Apps may lower or raise these limits
if they know that a legitimate input image exceeds these limits. Currently,
only the TIFF reader checks these limits, but others will be modified to
honor the limits over time. #3230 (2.3.11/2.4.0)
* Fix integer overflow warnings. #3329 (2.4.1.0)
* Improved behavior when opening a file whose format doesn't correctly match
its extension: try common formats first, rather than alphabetically; and
improve error messages. #3400 (2.4.2)
* The maximum number of threads you can set with option "oiio:threads"
has been increased from 256 to 512. #3484 (2.4.2.1)
* Make access to the internal imageio_mutex not be recursive. #3489 (2.4.2.2)
* Various protections against string metadata found in file that has zero
length. #3493 (2.4.2.2)
* Fix possible null pointer dereference in inventory_udim. #3498 (2.4.2.2)
* oiiotool, maketx, iinfo, igrep, and iv now all take a `--version` command
line argument, which just prints the OIIO version and exits. #3534
Developer goodies / internals:
* benchmark.h:
- Alter the declaration of DoNotOptimize() so that it doesn't have
compilation problems on some platforms. #3444 (2.4.2/2.3.17)
* filesystem.h:
- A new version of `searchpath_split` returns the vector of strings rather
than needing to be passed a reference. #3154 (2.4.0/2.3.10)
- New `write_binary_file()` utility function. #3199 (2.4.0/2.3.10)
- `searchpath_split()` fixes to better handle empty paths. #3306 (2.4.0.1)
* fmath.h:
- Added `round_down_to_multiple()`. Also, more correctly handle
`round_to_multiple()` results when the value is < 0. #3104
- Add `round_down_to_multiple()` and improve `round_to_multiple()` to
correctly handle cases where the value is less than 0. #3104
(2.4.0/2.3.8)
- Make bit_cast specialization take refs, like the template. This fixes
warnings for some compilers. #3213 (2.4.0/2.3.10.1)
* imageio.h:
- ImageInput and ImageOutput have many new helper methods (protected,
meant for II and IO subclass implementations to use, not users of these
classes) for helping to implement IOProxy support in format readers and
writers. #3203 #3222 (2.4.0)
* Imath.h:
- In addition to including the right Imath headers for the version that
OIIO is built with, this defines custom formatters for the Imath types
for use with fmt::format/print or Strutil::format/print. #3367 (2.4.1.0)
* oiioversion.h
- `OIIO_MAKE_VERSION_STRING` and `OIIO_VERSION_STRING` now print all 4
version parts. #3368 (2.4.1.0)
* parallel.h
- Refactoring of the entry points (back compatible for API), and add
support for using TBB for the thread pool (which seems slightly faster
than our internal thread pool). By default it still uses the internal
pool, but if OIIO::attribute("use_tbb") is set to nonzero, it will use
the TBB thread pool if built against TBB. #3473 (2.4.2.2) #3566
(2.4.4.0)
* paramlist.h
- Various internal fixes that reduce the amount of ustring construction
that happens when constructing ParamValue and ParamList, and making
certain ImageSpec::attribute() calls. #3342 (2.4.1.0)
* simd.h:
- Better guards to make it safe to include from Cuda. #3291 #3292
(2.4.0.1/2.3.12)
- Fix compiler warnings related to discrepancies between template
declaration and redeclaration in simd.h. #3350 (2.4.1.0/2.3.14)
- The vector types all now have a `size()` method giving its length.
#3367 (2.4.1.0)
- Defines custom formatters for the vector and matrix types, for use
with fmt::format/print or Strutil::format/print. #3367 (2.4.1.0)
* string_view.h
- Auto-conversion between our string_view, std::string_view (when
available), and fmt::string_view. #3337 (2.4.1.0)
- OIIO::string_view is now fully templated, to match std::string_view.
#3344 (2.4.1.0)
* strutil.h:
- New utility functions: parse_values(), scan_values(), scan_datetime()
#3173 #3177 (2.4.0/2.3.10), edit_distance() #3229 (2.4.0/2.3.11)
- The `utf8_to_utf16()` and `ut16_to_utf8()` utilities are now exposed on
all platforms, not just windows (and their internals have been
modernized). #3307 (2.4.0.1)
- `Strutil::isspace()` is a safe alternative to C isspace(), that works
even for signed characters. #3310 (2.4.1.0)
- `Strutil::print()` now is buffered (and much more efficient, and
directly wraps fmt::print). A new `Strutil::sync::print()` is a version
that does a flush after every call. #3348 (2.4.1.0)
- `get_rest_arguments()` fixes conflict between RESTful and Windows long
path notations. #3372 (2.4.1.0/2.3.14)
- Dramatically speed up (50-100x) Strutil iequals, iless, starts_with,
istarts_with, ends_with, iends_with. #3388 (2.4.1.1)
- New `safe_strcat` is a buffer-length-aware safe replcement for strcat.
#3471 (2.4.0/2.3.18)
- `Strutil::debug()` is the new OIIO::debug(), moving it from
libOpenImageIO to libOpenImageIO_Util. #3486 (2.4.2.1)
- New `Strutil::safe_strlen()` is a portable safe strlen replacement.
#3501 (2.4.2.2)
* sysutil.h:
- The `Term` class now recognizes a wider set of terminal emulators as
supporting color output. #3185 (2.4.0)
* timer.h:
- `Timer::add_seconds()` and `Timer::add_ticks()` allows add/subtract
directly to a timer's elapsed value. #3070 (2.4.0/2.3.8)
- For Linux, switch from using gettimeofday to clock_gettime, for
potentially higher resolution. #3443 (2.4.2)
* typedesc.h:
- Add Cuda host/device decorations to TypeDesc methods to make them GPU
friendly. #3188 (2.4.0/2.3.10)
- TypeDesc constructor from a string now accepts "box2f" and "box3f"
as synonyms for "box2" and "box3", respectively. #3183 (2.4.0/2.3.10)
* type_traits.h:
- This new header contains a variety of type traits used by other OIIO
headers. They aren't really part of the public API, but they are sometimes
used by public headers. #3367 (2.4.1.0)
* unittest.h:
- Changes `OIIO_CHECK_SIMD_EQUAL_THRESH` macro to compare `<= eps`
instead of `<`. #3333 (2.4.0.3)
* unordered_map_concurrent.h: Fix bug in `erase()` method. #3485 (2.4.2.2)
* ustring.h:
- New static method `from_hash()` creates a ustring from the known hash
value. #3397 (2.4.2)
- New `ustringhash` class is just like a ustring, except that the "local"
representation is the hash, rather than the unique string pointer. #3436
(2.4.2)
* vecparam.h:
- New `V3fParam`, `M33fParam`, and `M44Param` (defined in vecparam.h) are
used just for parameter passing in public APIs, instead of Imath::V3f,
M33f, or M44f, in order to more fully hide Imath types from our public
interfaces. These are only parameter-passing classes, and are not useful
as vector or matrix classes in their own right. But they seamlessly cast
to and from other vector- and matrix-like classes. #3330 (2.4.1.0)
* More internals conversion to use the new fmt style for string formatting,
console output, error messages, and warnings: oiiotool internals #3240
(2.4.0); TS/IC stats output #3374 (2.4.1.0); misc #3777 (2.4.1.0); testshade
#3415 (2.4.2)
* Internals are working toward removing all uses of string_view::c_str(),
since that isn't part of C++17 std::string_view. #3315 (2.4.0.1)
* New testtex options: `--minthreads` sets the minimum numer of threads that
will be used for thread wedges, `--lowtrials` is an optional maximum number
of trials just for the 1 or 2 thread cse. #3418 (2.4.2)
* Internals: internal classes with vertual methods now mark all their
overridden destructors correctly as `override`. #3481 (2.4.2.1) #3488 #3511
(2.4.2.2)
Build/test system improvements and platform ports:
* CMake build system and scripts:
- Remove the old FindOpenImageIO.cmake module; downstream clients should
instead use our exported configs. #3098 (2.4.0/2.3.8)
- Fix over-use of targets when we should have been using variables. #3108
(2.4.0/2.3.9)
- CMake variable `-DENABLE_INSTALL_testtex=1` causes `testtex` to be
installed as an application. #3111 (2.4.0)
- Make `OpenImageIO_SUPPORTED_RELEASE` into a CMake cache variable so it
can be overridden at build time. #3142 (2.4.0)
- New build option `-DTIME_COMMANDS=ON` will print time to compile each
module (for investigating build performance; only useful when building
with `CMAKE_BUILD_PARALLEL_LEVEL=1`). #3194 (2.4.0/2.3.10)
- `PROJECT_VERSION_RELEASE_TYPE` is now a cache variable that can be
overridden at build time. #3197 (2.4.0/2.3.10)
- Set and use the variable `PROJECT_IS_TOP_LEVEL` to know if OIIO is a
top level project or a subproject. #3197 (2.4.0/2.3.10)
- Restore code that finds Jasper when using statically-linked libraw.
#3210 (2.4.0/2.3.10.1)
- Gracefully handle failing to find git for test data download. #3212
(2.4.0/2.3.10.1)
- Make sure to properly use the tbb target if it exists. #3214
(2.4.0/2.3.10.1)
- Use a project-specific "OpenImageIO_CI" for whether we're running in CI,
rather than the confusingly generic "CI" #3211 (2.4.0/2.3.11)
- If CMake variable `BUILD_TESTING` is OFF, don't do any automatic
downloading of missing test data. #3227 (2.3.11/2.4.0)
- Fixes to FindOpenColorIO.cmake module, now it prefers an OCIO exported
cmake config (for OCIO 2.1+) unless OPENCOLORIO_NO_CONFIG=ON is set.
#3278 (2.4.0.1/2.3.12)
- Fix problems with FindOpenEXR build script for Windows. #3281
(2.4.0.1/2.3.12)
- New CMake cache variable `DOWNSTREAM_CXX_STANDARD` specifies which C++
standard is the minimum for downstream projects (currently 14), which
may be less than the `CMAKE_CXX_STANDARD` that specifies which C++
standard we are using to build OIIO itself. #3288 (2.4.0.1)
- The exported cmake configs now use relative paths so they are
relocatable. #3302 (2.4.0.1)
- CMake variable `OPENIMAGEIO_CONFIG_DO_NOT_FIND_IMATH`, if set to ON,
will make our generated config file not do a find_dependency(Imath).
(Use with caution.) #3335 (2.4.0.3)
- Can now do unity/jumbo builds. This isn't helpful when building with
many cores/threads, but in thread-limited situtations (such as CI), it
can speed up builds a lot to use `-DCMAKE_UNITY_BUILD=ON`. #3381 #3389
#3392 #3393 #3398 #3402 (2.4.2.0)
- Do not auto-download test images by default. To auto download test
images, build with `-DOIIO_DOWNLOAD_MISSING_TESTDATA=ON`. #3409 (2.4.0)
- Allow using the Makefile wrapper on arm64 systems. #3456 (2.4.2)
- The export OpenImageIOConfig.cmake fixes `OpenImageIO_INCLUDE_DIR` to
work correctly on Debian systems where there are multiple filesystem
components to the path. #3487 (2.4.2.1)
- On MacOS, do not force MACOS_RPATH on. #3523 (2.4.2.2)
- Improvements to the generated cmake config files when building static
libraries. #3552 #3557 (2.4.4.0)
* Dependency version support:
- When using C++17, use std::gcd instead of boost. #3076 (2.4.0)
- When using C++17, use `inline constexpr` instead of certain statics.
#3119 (2.4.0)
- Fixes to work with the libraw 202110 snapshot. #3143 (2.4.0/2.3.9.1)
- Fix occasional build breaks related to OpenCV headers. #3135
(2.4.0/2.3.9)
- The internals of `Filesystem::searchpath_split` have been reimplemented
in such a way as to no longer need boost.tokenzer. #3154 (2.4.0/2.3.10)
- Deal with the fact that OpenColorIO has changed its default branch
name to "main". #3169 (2.4.0/2.3.10/2.2.20)
- pybind11 v2.9.0 incorporated into our testing and CI. #3248
- Fix clang10 compile warnings. #3272 (2.4.0.1/2.3.12)
- Support for ffmpeg 5.0. #3282 (2.4.0.2/2.3.13)
- Support for fmtlib 9.0.0. #3327 (2.4.0.2/2.3.13) #3466 (2.4.2/2.3.18)
- `build_opencolorio.bash` helper script bumped its default build of
OpenColorIO to 2.1.2. #3475 (2.4.2.1)
- When building with C++17 or higher, Boost.filesystem is no longer
needed or used. #3472 #3477 (2.4.2.1)
- Upgrade the internal fallback implemention of PugiXML to the latest
version. #3494 (2.4.2.2)
- Fixes for ffmpeg 5.1 detection. #3516 (2.3.19.0/2.4.2.2)
- Support for gcc 12.1. #3480 (2.4.2.1) #3551 (2.4.4.0)
- Support building with clang 15.0. #3563 (2.4.4.0)
* Testing and Continuous integration (CI) systems:
- Properly test against all the versions of VFX Platform 2022. #3074
(2.4.0)
- The helper script `build_libtiff.bash` now allows you to override the
build type (by setting `LIBTIFF_BUILD_TYPE`) and also bumps the default
libtiff that it downloads and builds from 4.1.0 to 4.3.0. #3161 (2.4.0)
- New tests on MacOS 11 #3193 (2.4.0/2.3.10) and MacOS 12, remove test on
MacOS 10.15 (GitHub Actions is imminently removing MacOS 10.15). #3528
(2.3.19.0/2.4.2.2)
- Add a DDS test (we never had one before). #3200 (2.4.0/2.3.10)
- `imageinout_test` now has options to make it easy to unit test just one
named format, as well as to preserve the temp files for inspection.
#3201 (2.4.0/2.3.10)
- Add an HDR test (we never had one before). #3218 (2.4.0)
- Fix bugs in the build_opencolorio.bash script, did not correctly handle
installation into custom directories. #3278 (2.4.0.1/2.3.12)
- Failed build artifact storage is revised to save more cmake-related
artifacts to help debugging. #3311 (2.4.0.1)
- Now doing CI builds for Intel icc and icx compilers. #3355 #3363
(2.4.1.0/2.3.13) #3407 (2.4.0)
- Overhaul of ci.yml file to be more clear and compact by using GHA
"strategy" feature. #3356 #3365 (2.4.1.0/2.3.13)
- Removed CI for windows-2016 GHA instance which will soon be removed.
#3370 (2.4.1.0)
- Test against clang 14. #3404
- Various guards against supply chain attacks durig CI. #3454 (2.4.2)
- Test against pybind11 v2.10. #3478 (2.4.2.1)
- Run SonarCloud nightly for static analysis and coverage analysis. #3505
(2.4.2.2)
* Platform support:
- Fix when building with Clang on big-endian architectures. #3133
(2.4.0/2.3.9)
- Improvements to NetBSD and OpenBSD support. #3137. (2.4.0/2.3.9)
- Fixes for MSVS compile. #3168 (2.4.0/2.3.10)
- Fix problems on Windows with MSVC for Debug builds, where crashes were
occurring inside `isspace()` calls. #3310
- Improved simd.h support for armv7 and aarch32. #3361 (2.4.1.0/2.3.14)
- Suppress MacOS wasnings about OpenGL deprecation. #3380 (2.4.1.0/2.3.14)
- Fix MSVS/Windows errors. #3382 (2.4.1.1)
- Fix cross-compiling on Android failing due to `-latomic` check. #3560
(2.4.4.0)
- Fix building on iOS. #3562 (2.4.4.0)
Notable documentation changes:
* Add an oiiotool example of putting a border around an image. #3138
(2.4.0/2.3.9)
* Fix explanation of ImageCache "failure_retries" attribute. #3147
(2.4.0/2.3.9)
* Improved maketx argument explanations.
* Clean up intra-document section references. #3238 (2.3.11/2.4.0)
* New explanations about input and output configuration hints. #3238
(2.3.11/2.4.0)
* More code examples in both C++ and Python (especially for the ImageInput,
ImageOutput, and ImageBufAlgo chapters). #3238 #3244 #3250 (2.3.11/2.4.0)
#3263 (2.3.12/2.4.0)
* Pretty much anyplace where a parameter that represents a filename, and it is
supporting UTF-8 encoding of Unicode filenames, the docs for that function
explicitly say that the string is assumed to be UTF-8. #3312 (2.4.0.1)
* Fix many typos in docs. #3492 (2.4.2.2)
Release 2.3.21 (1 Nov 2022) -- compared to 2.3.20
--------------------------------------------------
* oiiotool: protect against OpenEXR thread deadlock on Windows. #3582
* oiiotool: work around static destruction order issue. #3591
* Fix PSD import on ARM. #3589
* Docs: write Windows build instructions in INSTALL.md. #3602
* RLA: fix potential buffer overrun. (TALOS-2022-1629, CVE-2022-36354) #3624
* TIFF: guard against corrupt files with buffer overflows. (TALOS-2022-1627,
CVE-2022-41977) #3628
* TIFF: guard against buffer overflow for certain CMYK files.
(TALOS-2022-1633, CVE-2022-41639) (TALOS-2022-1643, CVE-2022-41988) #3632
Release 2.3.20 (1 Oct 2022) -- compared to 2.3.19
-------------------------------------------------
* Fixes to compile with gcc 12. #3551
* Fixes to compile with clang 15. #3563
* PNG: better error handling when errors are encountered while writing. #3535
Release 2.3.19 (1 Sep 2022) -- compared to 2.3.18
---------------------------------------------------
* idiff: `--allowfailures` allows the specified number of pixels to differ by
any amount, and still consider the images to compare successfully. #3455
* idiff: `--failrelative` and `--warnrelative` allows the failure and warning
threshold to use a symmetric mean relative error (rather than the absolute
error implied by the existing `--fail` and `--warn` arguments). #3508
* Build: Fixes for ffmpeg 5.1 detection. #3516
* Build: suppress incorrect warnings for gcc 12. #3524
* CI: New test on MacOS 12, remove test on MacOS 10.15 (GitHub Actions is
imminently removing MacOS 10.15). #3528
* oiiotool, maketx, iinfo, igrep, and iv now all take a `--version` command
line argument, which just prints the OIIO version and exits. #3534
* `OIIO::getattribute("version")` now retrieves the version string. #3534
* Developer goodies: `ArgParse::add_version(str)` tells ArgParse the version
string, which will automatically add an option `--version`. #3534
Release 2.3.18 (1 Aug 2022) -- compared to 2.3.17
---------------------------------------------------
* Windows: Allow loading of dlls from PATH on Python 3.8+. #3470
* JPEG: Fix a race condition in read_native_scanline. #3495
* JPEG: Fix aspect ratio logic. #3500
* Bug fix: incorrect assignment of oiio_missingcolor attribute. #3497
* Bug fix: possible null pointer dereference in inventory_udim(). #3498
* Bug fix: print_info_subimage botched condition. #3499
* CI: Test against fmt 9.0.0. #3466
* CI: Test against pybind11 v2.10. #3478
* Strutil: safe_strcat() #3471 and safe_strlen() #3501
* Change build_opencolorio.bash to default to OCIO 2.1.2. #3475
Release 2.3.17 (1 Jul 2022) -- compared to 2.3.16
--------------------------------------------------
* TIFF: fix read problems with TIFF files with non-zero y offset. #3419
* Targa: Fix reading of tiny 1x1 2-bpp Targa 1.0 images. #3433 (2.3.17/2.2.21)
* BMP: better detection of corrupted files with nonsensical image dimensions
or total size. #3434 (2.3.17/2.2.21)
* BMP: protect against corrupted files that have palette indices out of bound.
#3435 (2.3.17/2.2.21)
* TextureSystem: Fix typo that prevented "max_tile_channels" attribute from
being set or retrieved. (2.3.17)
* ustring.h: ustring has added a from_hash() static method #3397, and a
ustringhash helper class #3436. (2.3.17/2.2.21)
* benchmark.h: Alter the declaration of DoNotOptimize() so that it doesn't
have compilation problems on some platforms. #3444 (2.3.17)
* Fix crash when ioproxy is passed to an image writer that doesn't support it.
#3453 (2.3.17)
* Fix the "Makefile" wrapper to correctly recognize arm64 ("Apple silicon").
#3456 (2.3.17)
Release 2.3.16 (1 Jun 2022) -- compared to 2.3.15
--------------------------------------------------
* Support for Intel llvm-based compiler 2022.1.0. #3407
* Internals: custom fmt formatters for vector types. #3367
* Fix compiler breaks when using some changes in fmtlib master (not yet
released). #3416
* UDIM textures have been sped up by 5-8%. #3417
Release 2.3.15 (1 May 2022) -- compared to 2.3.14
--------------------------------------------------
* JPEG: Better handling of PixelAspectRatio. #3366
* OpenEXR: Fix DWAA compression default level. #3387
* Perf: Huge speed-up of case-insensitive string comparisons (Strutil iequals,
iless, starts_with, istarts_with, ends_with, iends_with), which also speeds
up searches for attributes by name in ImageSpec and ParamValueList. #3388
* New `ImageBufAlgo::st_warp()` (and `oiiotool --st_warp`) perform warping of
an image where a second image gives the (s,t) coordinates to look up from at
every pixel. #3379
* Python: Add ImageSpec and ParamValueList method `get_bytes_attribute()`,
which is like `get_string_attribute()`, but returns the string as a Python
bytes object. In Python 3, strings are UTF-8, so this can be useful if you
know that a string attribute might contain non-UTF8 data. #3396
Release 2.3.14 (1 Apr 2022) -- compared to 2.3.13
--------------------------------------------------
* Add support for UDIM pattern `<uvtile>` (used by Clarisse & V-Ray). #3358
* BMP: Support for additional (not exactly fully documented) varieties used by
some Adobe apps. #3375
* Python: support uint8 array attributes in and out. This enables the proper
Python access to "ICCProfile" metadata. #3378
* Improved precision in IBA::computePixelStats(). #3353
* ffmpeg reader not uses case-insensitive tests on file extensions. #3364
* Fix writing deep exrs when buffer datatype doesn't match the file. #3369
* Fix conflict between RESTful and Windows long path notations. #3372
* ffmpeg reader: take care against possible double-free of allocated memory
crash upon destruction. #3376
* simd.h fixes for armv7 and aarch32. #3361
* Fix compiler warnings related to discrepancies between template declaration
and redeclaration in simd.h and benchmark.h. #3350
* Suppress MacOS warnings about OpenGL depreation. #3380
* Now doing CI builds for Intel icc and icx compilers. #3355 #3363
* CI: Overhaul of yml file to be more clear and compact by using GHA
"strategy" feature. #3356 #3365
Release 2.3.13 (1 Mar 2022) -- compared to 2.3.12
--------------------------------------------------
* Filesystm::searchpath_split better handling of empty paths. #3306
* New Strutil::isspace() is an isspace replacement that is safe for char
values that are < 0. #3310
* Expose the Strutil::utf8_to_utf16() and utf16_to_utf8() utilities on
non-Windows platforms (and also modernize their internals). #3307
* For the most important ImageInput, ImageOutput, and ImageBuf methods that
take a filename, add new flavors that can accept a `wstring` as the
filename. #3312 #3318
* PPM: properly report color space as Rec709 (as dictated by PPM spec). #3321
* PNG: more robust reporting of color space as sRGB in the absence of header
fields contradicting this. #3321
* strutil.h: Split the including of fmt.h and some related logic into a
separate detail/fmt.h. This is still included by strutil.h, so users
should not notice any change. #3327
* Targa: Fix parsing of TGA 2.0 extension area. #3323
* Support building against FFmpeg 5.0. #3282
* oiiotool --pixelaspect : fix setting of "PixelAspectRatio", "XResolution",
and "YResolution" attributes in the output file (were not set properly
before). #3340
Release 2.3.12 (1 Feb 2022) -- compared to 2.3.11
--------------------------------------------------
* oiiotool: Don't give spurious warnings about no output when the --colorcount
or --rangecheck commands are used. #3262
* `oiiotool --pattern checker` fixed behavior so that if only the checker
width was specified but not the height, height will be equal to width. #3255
* `oiiotool --point` lets you set individual pixels. #3256
* Python: A new ImageBuf constructor was added that takes only a NumPy
ndarray, and deduces the resolution, channels, and format (pixel data type)
from the shape of the array. #3246
* Python: Implement `ROI.copy()`. #3253
* Python: ImageSpec and ParamValueList now support `'key' in spec`,
`del spec['key']`, and `spec.get('key', defaultval)` to more fully emulate
Python `dict` syntax for manipulating metadata. #3252 (2.3.12/2.4.0)
* Python bug fix: fix `clamp()` when the min or max are just a float. Now
it uses that one value for all channels, instead of using it only for
the first channel. #3265
* ImageSpec gained an additional constructor that takes a string
representation of the pixel data type (where it used to insist on a
TypeDesc), such as `ImageSpec(640, 480, 3, "uint8")`. This is especially
helpful for new/casual users, or when you want code to be maximally
readable. #3245
* `Imagepec::getattribute()` new query token `"format"` can retrieve the pixel
data type. #3247
* `IBA::make_texture()`: ensure that "maketx:ignore_unassoc" is honored. #3269
* Support an additional UDIM pattern `<UVTILE>`, which is specified by
MaterialX. #3280
* TIFF: support 16-bit palette images. #3260
* TIFF: Gracefully handle missing ExtraSamples tag. #3287
* Targa: Better interpretation of TGA 1.0 files with alpha that is zero
everywhere. Be more consistent with Targa attributes all being called
"targa:foo". Add "targa:version" to reveal whether the file was TGA 1.0
or 2.0 version of the format. #3279
* simd.h: Better guards to make it safe to include from Cuda. #3291 #3292
* Fix bugs in the build_opencolorio.bash script, did not correctly handle
installation into custom directories. #3278
* Fixes to FindOpenColorIO.cmake module, now it prefers an OCIO exported cmake
config (for OCIO 2.1+) unless OPENCOLORIO_NO_CONFIG=ON is set. #3278
* Docs: The ImageBufAlgo chapter now has examples for C++, Python, and
oiiotool for almost every operation. #3263
Release 2.3.11 (1 Jan 2022) -- compared to 2.3.10
--------------------------------------------------
* JPEG2000: enable multithreading for decoding (if using OpenJPEG >= 2.2)
and encoding (if using OpenJPEG >= 2.4). This speeds up JPEG-2000 I/O
by 3-4x. #2225
* TIFF: automatically switch to "bigtiff" format for >4GB images. #3158
* Security: New global OIIO attributes "limits:channels" (default: 1024) and
"limits:imagesize_MB" (default: 32768, or 32 GB) are intended to reject
input files that exceed these limits, on the assumption that they are either
corrupt or maliciously constructed, and would, if read, lead to absurd
allocations, crashes, or other mayhem. Apps may lower or raise these limits
if they know that a legitimate input image exceeds these limits. Currently,
only the TIFF reader checks these limits, but others will be modified to
honor the limits over time. #3230
* TextureSystem: enhance safety/correctness for untiled images that exceed
2GB size (there was an integer overflow problem in computing offsets within
tiles). #3232
* Cleanup: Get rid of an obsolete header c-imageio.h that was experimental
and the functions declared therein were not implemented in this release.
#3237
* Build: rely on env variable "OpenImageIO_CI" to tell us if we are running in
a CI environment, not the more generic "CI" which could be set for other
reasons in some environments. #3211
* Build: Improvements in how we find OpenVDB. #3216
* Build: If CMake variable `BUILD_TESTING` is OFF, don't do any automatic
downloading of missing test data. #3227
* Dev: Add Strutil::edit_distance(). #3229
* Docs: Clean up intra-document section references, new explanations about
input and output configuration hints, more code examples in both C++ and
Python (especially for the ImageInput and ImageOutput chapters). #3238 #3244
Release 2.3.10.1 (7 Dec 2021) -- compared to 2.3.10.0
-----------------------------------------------------
* Build: restore code that finds Jasper when using statically-linked libraw.
#3210
* Build/test: Gracefully handle failing to find git for test data download.
#3212
* fmath.h: bit_cast specialization should take refs, like the template.
This made warnings for some compilers. #3213
* Build: make sure to properly use the tbb target if it exists. #3214
Release 2.3.10 (1 Dec 2021) -- compared to 2.3.9
--------------------------------------------------
New (non-compatibility-breaking) features:
* TextureSystem: add feature for stochastic mipmap interpolation. This adds
new interpolation modes "StochasticTrilinear" and "StochasticAniso", which
in conjunction with the "rnd" field in TextureOpt, will stochastically
choose between bracketing MIPmap levels rather than interpolating them. This
reduces texture lookup cost by up to 40%, but it's only useful in the
context of a renderer that uses many samples per pixel. #3127
* maketx/make_texture() now supports options to store Gaussian forward and
inverse transform lookup tables in image metadata (must be OpenEXR textures
for this to work) to aid writing shaders that use histogram-preserving
blending of texture tiling. This is controlled by new maketx arguments
`--cdf`, `--cdfsigma`, `--sdfbits`, or for `IBA::make_texture()` by using
hints `maketx:cdf`, `maketx:cdfsigma`, and `maketx:cdfbits`. #3159 #3206
* `oiitool --oiioattrib` can set "global" OIIO control attributes for
an oiiotool run (equivalent of calling `OIIO::attribute()`). #3171
* `oiiotool --repremult` exposes the previously existing `IBA::repremult()`.
The guidance here is that `--premult` should be used for one-time conversion
of "unassociated alpha/unpremultiplied color" to associated/premultiplied,
but when you are starting with a premultiplied image and have a sequence of
unpremultiply, doing some adjustment in unpremultiplied space, then
re-premultiplying, it's `--repremult` you want as the last step, because it
preserves alpha = 0, color > 0 data without crushing it to black. #3192
* `oiiotool --saturate` and `IBA::saturate()` can adjust saturation level of a
color image. #3190
* `oiiotool --maxchan` and `--minchan`, and `IBA::maxchan()` and `minchan()`
turn an N-channel image into a 1-channel images that for each pixel,
contains the maximum value in any channel of the original for that pixel.
#3198
* When building against OpenEXR >= 3.1.3, our OpenEXR output now supports
specifying the zip compression level (for example, by passing the
"compression" metadata as "zip:4"). Also note than when using OpenEXR >=
3.1.3, the default zip compression has been changed from 6 to 4, which
writes compressed files significantly (tens of percent) faster, but only
increases compressed file size by 1-2%. #3157
* Improved image dithering facilities: When dithering is chosen, it now
happens any time you reduce >8 bits to <= 8 bits (not just when converting
from float or half); change the dither pattern from hashed to blue noise,
which looks MUCH better (beware slightly changed appearance); `IBA::noise()`
and `oiiotool --noise` now take "blue" as a noise name, giving a blue noise
pattern; `IBA::bluenoise_image()` returns a reference to a stored periodic
blue noise image; `oiiotool -d` now lets you ask for "uint6", "uint4",
"uint2", and "uint1" bit depths, for formats that support them. #3141
* New global OIIO attribute `"try_all_readers"` can be set to 0 if you want to
override the default behavior and specifically NOT try any format readers
that don't match the file extension of an input image (usually, it will try
that one first, but it if fails to open the file, all known file readers
will be tried in case the file is just misnamed, but sometimes you don't
want it to do that). #3172
* Raise the default ImageCache default tile cache from 256MB to 1GB. This
should improve performance for some operations involving large images or
images with many channels. #3180
* IOProxy support has been added to JPEG output (already was supported for
JPEG input) and for GIF input and output. #3181 #3182
Bug fixes:
* Fix `oiiotool --invert` to avoid losing the alpha channel values. #3191
* Fix excessive memory usage when saving EXR files with many channels. #3176
* WebP: Fix previous failure to properly set the "oiio:LoopCount" metadata
for animated webp images. #3183
* Targa: Better detection/safety when reading corrupted files, and fixed
bug when reading x-flipped images. #3162
* RLA: better guards against malformed input. #3163
* Fix oiiotool bug when autocropping output images when the entire pixel data
window is in the negative coordinate region. #3164
* oiiotool improved detection of file reading failures. #3165
* DDS: Don't set "texturetype" metadata, it should always have been only
"textureformat". Also, add unit testing of DDS to the testsuite. #3200
* When textures are created with the "monochrome-detect" feature enabled,
which turns RGB textures where all channels are always equal into true
single channel greyscale, the single channel that results is now correctly
named "Y" instead of leaving it as "R" (it's not red, it's luminance).
#3205
Build fixes and developer goodies:
* Update internal stb_printf implementation (avoids some sanitizer alerts).
#3160
* Fixes for MSVS compile. #3168
* Add Cuda host/device decorations to TypeDesc methods to make them GPU
friendly. #3188
* TypeDesc: The constructor from a string now accepts "box2f" and "box3f"
as synonyms for "box2" and "box3", respectively. #3183
* New Strutil::parse_values, scan_values, scan_datetime, parse_line. #3173
#3177
* New `Filesystem::write_binary_file()` utility function. #3199
* New build option `-DTIME_COMMANDS=ON` will print time to compile each module
(for investigating build performance; only useful when building with
`CMAKE_BUILD_PARALLEL_LEVEL=1`). #3194
Release 2.3.9.1 (1 Nov 2021) -- compared to 2.3.8
--------------------------------------------------
* OpenEXR: When building against OpenEXR 3.1+ and when the global OIIO
attribute "openexr:core" is set to nonzero, do more efficient multithreaded
reading of OpenEXR files. #3107
* `oiiotool --dumpdata:C=name` causes the dumped image data to be formatted
with the syntax of a C array. #3136
* oiiotool: Allow quotes in command modifiers. #3112
* jpeg input: remove stray debugging output to console. #3134
* HEIF: Handle images with unassociated alpha. #3146
* Targa: improved error detection for read errors and corrupted files. #3120
* raw: When using libraw 0.21+, now support new color space names "DCE-P3",
"Rec2020", and "sRGB-linear", and "ProPhoto-linear". Fix incorrect gamma
values for "ProPhoto". #3123 #3153 Fixes to work with the libraw 202110
snapshot. #3143
* TIFF: honor zip compression quality request when writing TIFF. #3110
* Fix broken oiiotool --dumpdata output. #3131
* Fix possible bad data alignment and SIMD assumptions inside TextureSystems
internals. #3145
* Field3D, which is no longer actively supported, now has support disabled in
the default build. To enable Field3D support, you must build with
`-DENABLE_FIELD3D=1`. Note that we expect it to be no longer supported at
all, beginning with OIIO 2.4. #3140
* Build: Address new warnings revealed by clang 13. #3122
* Build: Fix when building with Clang on big-endian architectures. #3133
* Build: Fix occasional build breaks related to OpenCV headers. #3135
* Build: Improvements to NetBSD and OpenBSD support. #3137.
* docs: Add an oiiotool example of putting a border around an image. #3138
* docs: Fix explanation of ImageCache "falure_retries" attribute. #3147
Release 2.3.8 (1 Oct 2021) -- compared to 2.3.7
--------------------------------------------------
* Fix ImageBuf::read() bug for images of mixed per-channel data types. #3088
* Fix crash that could happen with invalidly numbered UDIM files. #3116
* Better catching of exceptions and other error handling when OpenColorIO 1.x
is used but encounters an OpenColorIO 2.x config file. #3089 #3092 #3095
* Ensure that OpenColorIO doesn't send info messages to the console if no
config is found. #3113
* Fix: make sure ImageSpec deserialization works for arbitrary attribs. #3066
* `oiiotool -ch` now has greatly reduced cost (no useless allocations or
copies) when the channel order and names don't change. #3068
* `oiiotool --runstats` is now much better about correctly attributing I/O
time to `-i` instead of to the subsequent operations that triggers the
read. #3073
* TIFF output now supports IO proxies. #3075 #3077
* Improved finding of fonts (by IBA::render_text and oiiotool --text). It now
honors environment variable `$OPENIMAGEIO_FONTS` and global OIIO attribute
"font_searchpath" to list directories to be searched when fonts are needed.
#3096
* We no longer install a FindOpenImageIO.cmake module. It was incomplete, out
of date, and wholly unnecessary now that we correctly export a config file
OpenImageIOConfig.cmake and friends. #3098
* When building against OpenEXR 3.1+, use of the OpenEXRCore library no longer
requires a build-time option, but instead is always available (though off by
default) and can be enabled by an application setting the OIIO global
attribute "openexr:core" to 1. #3100
* dev: Timer::add_seconds and add_ticks methods. #3070
* dev: Add `round_down_to_multiple()` and improve `round_to_multiple()` to
correctly handle cases where the value is less than 0. #3104
Release 2.3 (1 Sept 2021) -- compared to 2.2
----------------------------------------------
New minimum dependencies and compatibility changes:
* C++ standard: **C++14 is now the minimum (gcc 6.1 - 11.2, clang 3.4 - 12,
MSVS 2017 - 2019, icc 17+).** The default C++ standard mode, if none is
explicitly specified, is now C++14. #2918 (2.3.4) #2955 #2977 (2.3.5)
* FFMmpeg (optional) dependency minimum is now 3.0 (raised from 2.6). #2994
* OpenCV (optional) dependency minimum is now 3.0 (raised from 2.0). #3015
New major features and public API changes:
* Changes and clarifications to `geterror()` in all classes that have one:
- `geterror()` now takes an optional `clear` parameter controls if the
pending error is cleared as well as retrieved (default `true`).
- All classes with `geterror()` are ensured to have `has_error()`.
- `geterror()` appends to the pending error message, if one is already
present but not retrieved. Appending errors will be automatically
separated by newlines, also any newline at the end of a geterror
call will be stripped. #2740 (2.3.0.1)
* ImageInput error messages are now thread-specific. This prevents multiple
threads simultaneously reading from the same ImageInput from getting the
other thread's error messages. But it means you must always retrieve an
error with `getmessage()` from the same thread that made the read call
that generated the error. #2752 (2.3.0.1)
* ImageInput and ImageOutput have removed several fields (like the m_mutex)
and instead now use a PIMPL idiom that hides internals better from the
ABI. If you had a custom ImageInput/Output class that directly accessed
the m_mutex, replace it instead with calls to ImageInput::lock() and
unlock() (and ImageOutput). #2752 (2.3.1.0)
* Clarify that ImageBuf methods `subimage()`, `nsubimages()`, `miplevel()`,
`nmipevels()`, and `file_format_name()` refer to the file that an ImageBuf
was read from, and are thus only meaningful for ImageBuf's that directly
read from files. "Computed" or copied ImageBuf's are solo images in memory
that no longer correspond to a file even if the input to the computation
was from a file. #2759 (2.3.0.1/2.2.9)
* New `get_extension_map()` returns a map that list all image file formats
and their presumed file extensions. #2904 (2.3.4)
* Overhaul of how we handle "thumbnails" (small preview images embedded in
the headers of some image file formats) #3021 (2.3.7):
- Thumbnails no longer embedded in the ImageSpec as "thumbnail_image"
metadata of a big character array blob.
- ImageInput, ImageBuf, and ImageCache have varieties of `get_thumbnail()`
method that returns the thumbnail as an ImageBuf. If this is not
called, ideally the reader will not undergo the expense of reading and
storing thumbnail data.
- ImageOutput and ImageBuf have `set_thumbnail()` to communicate a
thumbnail image as an ImageBuf.
- The net effect is that reading files and retrieving ImageSpec's should
be more efficient for apps that don't have a use for thumbnails.
* Significant improvements to UDIM handling in ImageCache/TextureSystem:
- New UDIM texture name patterns recognized: `%(UDIM)d` is the Houdini
convention, and `_u##v##` is for Animal Logic's internal renderer.
#3006 (2.2.16/2.3.6)
- It is now permissible for `get_texture_info()/get_image_info()` to
retrieve metadata for UDIM patterns -- previously it failed, but now
it will succeed in retrieving any metadata as long as it is present
and has the same value in all the matching "UDIM tile" panels. #3049
(2.3.7)
- TextureSystem now exposes methods `is_udim()`, `resolve_udim()`,
`inventory_udim()` that should be helpful for apps dealing with UDIM
textures. See the documentation for details. #3054 (2.3.7)
- Performance improvements when using UDIM textures. #3049 (2.3.7)
* ImageBuf, when "wrapping" an app-owned buffer, now allows explicit
specification of stride lengths. This allows you to wrap a buffer that
has internal padding or other non-contiguous spacing of pixels, scanlines,
or image planes. #3022 (2.3.6)
* oiiotool new commands and options:
- `--pastemeta` takes two images as arguments, and appends all the
metadata (only) from the first image onto the second image's pixels
and metadata, producing a combined image. #2708 (2.3.0.0)
- `--chappend` and `--siappend` both allow an optional modifier `:n=`
to specify the number of images from the stack to be combined
(default n=2). #2709 (2.3.0.0)
- `--fit` now takes an additional optional modifier: `fillmode=` with
choices of `letterbox` (default), `width`, and `height`. #2784 (2.3.2.0)
- `--autocc` now has an optional modifier `:unpremult=1` that causes
any color transformations related to autocc to unpremultiply by alpha
before the transformation and then re-premultiply afterwards, exactly
the same control that exists for individual `--colorconvert` but never
existed for autocc. #2890 (2.3.3)
- `--list-formats` lists all the image file formats that OIIO knows
about, and for each, the associated file extensions. #2904 (2.3.4)
- `--skip-bad-frames` causes an error (such as an input file not being
found) to simply skip to the next frame in the frame range loop, rather
that immediately exiting. #2905 (2.3.4)
- When doing expression substitution, `{getattribute(name)}` will be
replaced by the value that `OIIO::getattribute(name, ...)` would
retrieve. #2932 (2.3.4)
- `--missingfile` (which takes a subsequent argument of `error`, `black`,
or `checker`) determines the behavior when an input image file is
missing (the file does not exist at all, does not include cases where
the file exists but there are read errors). The default value of
`error` matches the old behavior: report an error and terminate all
command processing. Other choices of `black` or `checker` will continue
processing but substitute either a black or checkerboard image for the
missing file. #2949 (2.3.4)
- `--printinfo` prints verbose metadata info about the current top
image on the stack. #3056 (2.3.7)
- `--printstats` prints statistics about the current top image on the
stack, and optionally can limit the statistics to a rectangular
subregion of the image. #3056 (2.3.7)
- Expanded expression now support the following new metadata notations:
`META`, `METABRIEF`, and `STATS`. #3025 (2.3.6)
- `--mosaic` now takes optional `fit=WxH` modifier that lets you set the
"cell" size, with all constituent images resized as needed (similarly
to if you used `--fit` on each individually). This is helpful for
creating contact sheets without having to resize separately or to know
the resolution of the original images. #3026 (2.3.6)
- REMOVED `--histogram` which had been deprecated and undocumented since
before OIIO 2.0. #3029 (2.3.6)
* Python bindings:
- When transferring blocks of pixels (e.g., `ImageInput.read_image()`
or `ImageOutput.write_scanline()`), "half" pixels ended up mangled
into uint16, but now they use the correct `numpy.float16` type. #2694
(2.3.0.0)
- The value passed to `attribute(name, typedesc, value)` can now be a
tuple, list, numpy array, or scalar value. #2695 (2.3.0.0)
- Added Python bindings for the TextureSystem. #2842
- Add the previously (inadvertently) omitted enum value for
`ImageBufAlgo.MakeTxBumpWithSlopes`. #2951 (2.3.4)
* Environment variables:
- `CUE_THREADS` env variable, if set, is now honored to set the default
size of the OIIO thread pool. This helps to make OIIO-based apps be
good citizens when run as OpenCue jobs. #3038 (2.3.7)
* Library organization:
- All the utility classes are now in libOpenImageIO_Util *only* and
libOpenImageIO depends on and links to libOpenImageIO_Util, rather
than the utility classes being defined separately in both libraries.
#2906 (2.3.4)
- Include file change: `imagebuf.h` no longer includes `imagecache.h`.
It should never have needed to, since it didn't need any of its
declarations. Other code that should always have included both headers,
but inadvertently only included `imagebuf.h`, may now need to add an
explicit `#include <OpenImageIO/imagecache.h>`. #3036 (2.3.7)
* Important change to `Makefile` wrapper: We have a 'Makefile' that just wraps
cmake for ease of use. This has changed its practice of putting builds in
`build/ARCH` to just `build` (and local installs from `dist/ARCH` to `dist`)
to better match common cmake practice. So where your local builds end up may
shift a bit. #3057 (2.3.7)
* Deprecations: A number of long-deprecated functions and methods have been
given deprecation attributes that will cause warnings if you use them. They
will eventually be removed entirely at the next "breaking" release (3.0,
whenever that is). #3032 (2.3.7)
Performance improvements:
* Speed up BMP reading by eliminating wasteful allocation and copying
done on each scanline read. #2934 (2.3.4)
* For `IBA::to_OpenCV()`, improve efficiency for certain image copies. #2944
(2.3.4)
* Fix runaway parsing time for pathological XMP metadata. #2968 (2.3.5/2.2.15)
* TextureSystem reduction in overhead when using UDIM textures. #3049 (2.3.7)
Fixes and feature enhancements:
* Fix a situation where if an ImageBuf backed by an ImageCache reads an
image, then the image changes on disk, then another ImageBuf or ImageCache
tries to read it, it could end up with the old version. This involved some
strategic cache invalidation when ImageBuf's write images to disk. #2696
(2.3.0.0)
* Improve parsing of XMP records in metadata: more correct handling of
lists/sequences, better inference of types that look like int or float
(rather than forcing unknown fields into strings), fixed bugs in parsing
rational values. #2865 (2.2.12/2.3.3)
* ImageBuf/ImageBufAlgo:
- `IBA::contrast_remap()` fixes bug that could crash for very large
images #2704 (2.3.0.0)
- Fix stack overflow crash in IBA::colorconvert of unusually wide images.
#2716 (2.3.0.1/2.2.8)
- Fix `IBA::make_texture()` incorrectly setting tile sizes. #2737
(2.3.0.1/2.2.8)
- `IBA::make_texture()` now correctly propagates error messages, which
can be retrieved via the global OIIO::geterror() call. #2747 (2.3.0.1)
- `IBA::fit()` now takes a `fillmode` parameter that controls exactly
how the resize will occur in cases where the aspect ratio of the new
frame doesn't exactly match that of the source image. The old way (and
the default value now) is "letterbox", but now also "width" and
"height" modes are allowed. See `fit()` documentation for details.
#2784 (2.3.2.0)
- `IBA::fit()` fixes some slight ringing at image edges when using a
combination of black wrap mode and a filter with negative lobes.
#2787 (2.3.2.0)
- Fix: `ociolook()` and `ociofiletransform()` internally reversed the
order of their `inverse` and `unpremult` arguments, making it hard to
select the inverse transformation. #2844 (2.3.3/2.2.11)
- Fix crash for certain calls to `ImageBuf::set_write_format()` when
writing files that support per-channel data types. #2885 (2.3.3)
- Fix: `IBA::fillholes_pushpull` did not correctly understand which
channel was alpha when generating subimages. #2939 (2.3.4)
- Fix: `IBA::render_text` did not properly account for non-1 alpha of
the text color. #2981 (2.3.5/2.2.15)
- `IBA::colorconvert`, `colormatrixtransform`, `ociolook`, `ociodisplay`,
and `ociofiletransform` have been fixed so that if input is more than
4 channels, the additional channels will be copied unchanged, rather
than inadvertently set to 0. #2987 (2.3.5/2.2.16)
- Thread safety has been improved for `ImageBuf::init_spec()` and `read()`
(though no problem was ever reported in the wild). #3018 (2.3.6)
- `render_text()` now accepts text strings with embedded linefeeds and
will turn them into multiple lines of rendered text. #3024 (2.3.6)
* ImageCache/TextureSystem/maketx:
- Fix ImageCache bug: add_tile/get_tile not properly honoring when
`chend < chbegin` it should get all channels. #2742 (2.3.0.1/2.2.8)
- `ImageBufAlgo::make_texture()` (as well as `maketx` and `oiiotool -otex`)
clamp `half` values to their maximum finite range to prevent very large
float inputs turning into `Inf` when saved as half values. #2891 (2.3.3)
- Fix crash when sampling non-zero-base channels. #2962 (2.3.5/2.2.15)
- `IBA::make_texture()` rejects "deep" input images, since they cannot
be made into textures. Doing this could previously crash. #2991
(2.3.5/2.2.16)
- maketx and `oiiotool -otex` have fixed double printing of error
messages #2992 (2.3.5).
- Making bumpslopes textures now allows scaled slopes UV normalization.
This is exposed as new maketx argument `--uvsopes_scale`, or passing
the attribute `uvslopes_scale` (int) to make_texture(). #3012 (2.3.6)
- There is a new variety of ImageCache::invalidate() that takes an
`ImageHandle*` argument instead of a filename. #3035 (2.3.7)
* oiiotool:
- `--resize` of images with multi-subimages could crash. #2711 (2.3.0.0)
- Improve oiiotool's guessing about the desired output format based on
inputs (in the absence of `-d` to specify the format). #2717
(2.3.0.1/2.2.8)
- `--text` now accepts text strings with embedded linefeeds and
will turn them into multiple lines of rendered text. #3024 (2.3.6)
* BMP
- Fix reading BMP images with bottom-to-top row order. #2776
(2.3.1.1/2.2.9)
- Correctly read BMP images of the older V1 variety without crashing.
#2899 (2.3.3/2.2.13)
- Fix error in the rightmost pixel column when reading 4 bpp images with
odd horizontal resolution. #2899 (2.3.3/2.2.13)
- BMP reads now return metadata "bmp:bitsperpixel" (only when not 24
or 32) to indicate non-whole-byte channels sizes in the file, and
"bmp:version" to indicate the version of the BMP format. #2899
(2.3.3/2.2.13)
- Speed up BMP reading by eliminating wasteful allocation and copying
done on each scanline read. #2934 (2.3.4)
- For BMP files that are 8 bits per pixel and all palette entries have
R == G == B values, read the file as an 8-bit grayscale image instead
of needlessly promoting to a full RGB 3-channel image. #2943 (2.3.4)
- Full support for reading RLE-compressed BMP images. #2976 (2.3.5/2.2.15)
- Write single channel BMP as 8 bit palette images. #2976 (2.3.5/2.2.15)
* DPX
- Output to DPX files now supports IOProxy. (Input already did.) #3013
(2.2.17/2.3.6)
* FFMpeg/movies:
- Avoid potential crash when a frame can't be read. #2693 (2.3.0.0)
- Several varieties of encoded videos with 12 bits per channel and
having alpha were incorrectly reported as 8 bits and without alpha.
#2989 (2.3.5/2.2.16)
* GIF
- Support UTF-8 filenames on Windows for GIF files. #2777 (2.3.2.0)
- Fix error checking for non-existent GIF files. #2886 (2.3.3)
* HEIC
- Fix error decoding Apple HEIF files. #2794/#2809 (2.3.2.0)
- Better valid_file() check for HEIF. #2810 (2.3.2.0)
- Enabled AVIF decoding of heic files (requires libheif >= 1.7 and for
it to have been built with an AV1 encoder/decoder). #2811 #2812 #2814
#2818 (2.3.3.0)
* IFF
- Fix broken reads of 16 bit iff files. #2736 (2.3.0.1/2.2.8)
* JPEG
- Allow reading of JPEG files with mildly corrupted headers. #2927 (2.3.4)
* OpenEXR:
- Fix rare crash that was possible when multithreaded writing openexr
files. #2781 (2.3.2.0)
- Improved error reporting when errors are encountered writing OpenEXR
files. #2783 (2.3.2.0)
- Fix potential crash parsing OpenEXR header that contains Rational
attributes with certain values. #2791 (2.2.10/2.3.2)
- EXPERIMENTAL: When building against OpenEXR 3.1, the OIIO CMake option
`-DOIIO_USE_EXR_C_API=ON` will use a new OpenEXR API that we think
will allow higher performance texture reads in a multithreaded app.
This has not yet been benchmarked or tested thoroughly. #3009 #3027
(2.3.6)
- The reader no longer renames file metadata "version" into the special
"openexr:version" that would indicate the OpenEXR file format version
of the file. That's never what it meant! It really was just arbitrary
metadata. #3044 (2.3.7)
* PNG
- Read Exif data from PNG files. #2767 (2.3.1.1/2.2.9)
* PSD
- Add support for reading ISD profiles for PSD input. #2788 (2.3.2.0)
- Fix loading PSB files with cinf tags. #2877 (2.2.12/2.3.2)
* RAW:
- Additional input configuration hints to control options in the
underlying LibRaw: `"raw:user_flip"` #2769 (2.3.1.0)
`"raw:balance_clamped"`, `"raw:apply_scene_linear_scale"`,
`"raw:camera_to_scene_linear_scale"` #3045 (2.3.7)
- Correctly handle RAW files with Unicode filenames on Windows. #2888
(2.3.3)
- Fix garbled output when `raw:Demosaic` hint is `"none"`. #3045 (2.3.7)
* Targa
- Fix potential crash when reading files with no thumbnail. #2903
(2.3.3/2.2.13)
- Fix alpha handling for some files. #3019 (2.3.6)
* TIFF:
- Fix broken reads of multi-subimage non-spectral files (such as
photometric YCbCr mode). #2692 (2.3.0.0)
- Fix spec() and spec_dimensions() for MIPmapped TIFF files, they did
not recognize being asked to return the specs for invalid subimage
indices. #2723 (2.3.0.1/2.2.7)
- Add ability to output 1bpp TIFF files. #2722 (2.3.0.1/2.2.7)
- Fix reading TIFF files with "separate" planarconfig and rowsperstrip
more than 1. #2757 (2.3.0.1/2.2.9)
- Fix incorrect reading of tiled TIFF files using certain rare TIFF
features that also have a vertical resolution that is not a whole
multiple of the tile size. #2895 (2.3.3/2.2.13)
- Support IOProxy for reading TIFF files. #2921 (2.3.4)
- TIFF plugin now properly honors caller request for single-threaded
operation. #3016 (2.3.6)
* WebP:
- Add support for requesting compression "lossless". #2726 (2.3.0.1/2.2.8)
- Input improvements including: RGB images are kept as RGB instead of
always adding alpha; more efficient by skipping alpha premultiplication
when it's unnecessary; now can read animated WebP images as
multi-subimage files. #2730 (2.3.0.1/2.2.8)
* Fix memory leak during decoding of some invalid Exif blocks. #2824
* Fix possible divide-by-zero error in read_image/read_scanlines for invalid
image sizes (usually from corrupt files). #2983 (2.3.5/2.2.16)
Developer goodies / internals:
* Internals now use C++11 `final` keywords wherever applicable. #2734
(2.3.0.1)
* More internals conversion of old Strutil::sprintf to Strutil::fmt::format
and related changes. #2889 (2.3.3)
* Redundant format conversion code removed from imageio.cpp #2907 (2.3.4)
* Eliminate direct output to std::cerr and std::cout by library calls.
#2923 (2.3.4)
* argparse.h:
- ArgParse::abort() lets the response to a command line argument signal
that no further arguments should be parsed. #2820 (2.3.3/2.2.11)
* color.h:
- New `ColorConfig::OpenColorIO_version_hex()` returns the hex code for
the version of OCIO we are using (0 for no OCIO support). #2849 (2.3.3)
* farmhash.h:
- Clean up all non-namespaced preprocessor symbols that are set
by this header and may pollute the caller's symbols. #3002 (2.2.16/2.3.6)
* filesystem.h:
- New Filesystem::generic_filepath() returnss a filepath in generic
format (not OS specific). #2819 (2.3.3/2.2.11)
- Improve exception safety in Filesystem directory iteration. #2998
(2.2.16/2.3.6)
- New `filename_to_regex()` makes a filename "safe" to use as a
regex pattern (for example, properly backslashing any `.` characters).
#3046 (2.3.7)
- Some methods that used to take a `const std::string&` now take a
`string_view`. #3047 (2.3.7)
* fmath.h:
- Use CPU intrinsics to speed up swap_ending (by 8-15x when swapping
bytes of large arrays). #2763 (2.3.1.0)
* hash.h:
- `farmhash::inlined::Hash` now is constexpr and works for Cuda.
#2843 (2.3.3) #2914 #2930 (2.3.4)
* oiioversion.h:
- New macros `OIIO_VERSION_GREATER_EQUAL` and `OIIO_VERSION_LESS`.
#2831 (2.3.3/2.2.11)
* platform.h:
- New macro OIIO_INLINE_CONSTEXPR, equivalent to `inline constexpr` for
C++17, but just constexpr for C++ <= 14. #2832 (2.3.3/2.2.11)
* simd.h:
- Fix incorrect ARM NEON code in simd.h. #2739 (2.3.0.1/2.2.8)
* span.h:
- `std::size()` and `std::ssize()` should work with OIIO::span now.
#2827 (2.3.3/2.2.11)
* string_view.h:
- `std::size()` and `std::ssize()` should work with OIIO::string_view
now. #2827 (2.3.3/2.2.11)
- More thorough constexr of string_view methods. #2841 (2.3.3)
* strongparam.h:
- New StrongParam helper for disambiguating parameters. #2735 (2.3.2)
* strutil.h:
- Strutil `splits()` and `splitsv()` should return no pieces when passed
an empty string. (It previously erroneously returned one piece
consisting of an empty string.) #2712 (2.3.0.0)
- Fix build break when strutil.h was included in Cuda 10.1 code. #2743
(2.3.0.1/2.2.8)
- `strhash()` is now constexpr for C++14 and higher. #2843 (2.3.3)
- New Strutil functions: find, rfind, ifind, irfind #2960 (2.3.4/2.2.14)
contains_any_char #3034 (2.3.7) rcontains, ircontains #3053 (2.3.7)
* sysutil.h:
- Extend `getenv()` to take a default if the environment variable is not
found. #3037 #3040 (2.3.7)
* typedesc.h:
- `TypeDesc::basetype_merge(a,b)` returns a BASETYPE having the
precision and range to hold the basetypes of either `a` or `b`.
#2715 (2.3.0.0)
- TypeDesc can now describe 2D and 3D bounding boxes, as arrays of 2
VEC2 aggregates (for 2D) or VEC3 aggregates (for 3D) with "BOX"
semantic. The shorthand for these are `TypeBox2`, `TypeBox3` (for
float), and `TypeBox2i` and `TypeBox3i` for integer or pixel coordinte
boxes. #3008 (2.2.17/2.3.6)
* unordered_map_concurrent.h:
- New methods find_or_insert, nobin_mask(). #2867 (2.2.12/2.3.3)
* ustring.h:
- ustring internals now have a way to ask for the list of ustrings whose
hashses collided. #2786 (2.2.11/2.3.2.0)
- ustring now guarantees that no two ustrings will return the exact same
value for `hash()`. #2870 (2.3.3)
- ustring now explicitly disallows embedded NUL (0) characters in the
middle of a string. A ustring constructed from such a thing will
truncate the string after the first NUL. #3326 (2.4.0.2)
Build/test system improvements and platform ports:
* CMake build system and scripts:
- Instead of defaulting to looking for Python 2.7, the OIIO build now
defaults to whatever Python is found (though a specific one can still
be requested via the PYTHON_VERSION variable). #2705 (2.3.0.0/2.2.8)
#2764 (2.3.0.1/2.2.8)
- Make the OIIO CMake files work properly if OIIO is a subproject. Also
various other CMake script refactoring. #2770 (2.3.1.1/2.2.9)
- Extend checked_find_package with VERSION_MIN and VERSION_MAX #2773
(2.3.1.1/2.2.9), DEFINITIONS and SETVARIABLES #3061 (2.3.7)
- No longer directly link against python libraries when unnecessary.
#2807 (2.2.11/2.3.3)
- On Windows, fix some linkage problems by changing the pybind11
bindings to make a CMake "shared" library rather than "module". Sounds
wrong, but seems to work. We will reverse if this causes problems.
#2830 (2.3.3/2.2.11)
- Improvements to building or linking static libraries. #2854 (2.2.12/2.3.3)
- Change default STOP_ON_WARNING to OFF for release branches (including
this one) so that small change in compiler warnings after our release
don't break anybody's builds. (Though we still stop on warnings for CI
builds). #2861 (2.2.12/2.3.3)
- The pkgconfig OpenImageIO.pc was specifying the include path
incorrectly. #2869 (2.2.12/2.3.3)
- Support for CMake 3.20. #2913 #2931 (2.3.4)
- Be sure to have the namespace include the patch number for pre-release
builds from the master branch. #2948 (2.3.4)
- Use modern style cmake targets for PNG and ZLIB dependencies. #2957
(2.3.4)
- Propagate C++14 minimum requirement to downstream projects via our
cmake config exports. #2965 (2.3.5)
- Fix exported cmake config files, which could fail if Imath and OpenEXR
weren't the at the same version number. #2975 (2.3.5/2.2.15)
- Change default postfix for debug libraries to `_d`. (2.3.5)
- Our CMake `checked_find_package` is now able to be requested to favor
an exported config file, if present, on a package-by-package basis.
#2984 (2.3.5/2.2.15)
- If a package is requested to be disabled, skip its related tests rather
than reporting them as broken. #2988 (2.3.5/2.2.16)
- Better support for running testsuite when the build dir in odd places.
#3065 #3067 (2.3.7.1)
- To prevent accidental overwrite of sensitive areas (such as
/usr/local), you now need to explicitly set CMAKE_INSTALL_PREFIX if you
want the "install" to not be local to the build area. #3069 (2.3.7.1)
* Dependency version support:
- C++20 is now supported. #2891 (2.3.3)
- Fix deprecation warnings when building with very new PugiXML versions.
#2733 (2.3.0.1/2.2.8)
- Fixes to build against OpenColorIO 2.0. #2765 (2.3.0.1/2.2.8) #2817
#2849 (2.3.3/2.2.11) #2911 (2.3.4)
- Fix to accommodate upcoming OpenColorIO 2.1 deprecation of
parseColorSpaceFromString. #2961 (2.3.5/2.2.15)
- Work to ensure that OIIO will build correctly against Imath 3.0 and
OpenEXR 3.0, as well as Imath 3.1 / OpenEXR 3.1. #2771 (2.3.1.1/2.2.9)
#2876 #2678 #2883 #2894 (2.3.3/2.2.12) #2935 #2941 #2942 #2947 (2.3.4)
- Better finding of OpenJpeg 2.4. #2829 (2.3.3/2.2.11)
- On Mac, libheif 1.10 is very broken. Don't use that version. #2847
(2.3.3/2.2.11)
- Fix build break against changes coming in future libtiff, where it
is changing from some libtiff-defined integer types to the equivalent
stdint.h types. #2848 (2.3.3/2.2.11)
- Fixes to support the libraw 202101 snapshot (their in-progress 0.21.0).
#2850 (2.3.3/2.2.11)
- More clear warnings about using OpenVDB 8+ when building for C++11,
because OpenVDB 8 requires C++14 or higher. #2860 (2.2.12/2.3.3)
- More gracefully handle building against a custom Imath/OpenEXR even
when another exists in the system area. #2876 (2.2.12/2.3.3)
- Minor fixes to build cleanly against the upcoming Imath 3.0. #2878
(2.2.12/2.3.3)
- Remove obsolete dependency on Boost random (now use std::random).
#2896 (2.3.3)
- libtiff 4.3 is supported. #2953 (2.3.4)
- We now include a `build_OpenJPEG.bash` script that can conveniently
build a missing OpenJPEG dependency. (2.3.5/2.2.16)
- Changes to make it build against TBB 2021. #2985 (2.3.5/2.2.15)
- Support for building OIIO with gcc 11. #2995 (2.2.16/2.3.6)
- Fixes to accommodate Imath 3.1 upcoming changes. #2996 (2.2.16/2.3.6)
- Finding FFMpeg now correctly detects the version. #2994 (2.2.16/2.3.6)
- FFMpeg minimum version is now >= 3.0. #2999 (2.3.6)
- Fixes for detecting and using Ptex, among other things got the version
wrong. #3001 (2.2.16/2.3.6)
- Fixes for building against fmt 8.0. #3007 (2.3.6)
- The OpenCV minimum version is now >= 3.0. #3015 (2.3.6)
- Fixes to build properly against the upcoming OpenColorIO 2.1. #3050
(2.3.7)
- Finding boost is more flexible when desiring static libraries. #3031
(2.3.7/2.2.17)
- FindTBB.cmake module updated to create proper targets. #3060 (2.3.7)
- All the `src/build_scripts/build_*.bash` scripts now honor an env
variable called `DEP_DOWNLOAD_ONLY`, which if set will only do the
downloads but not the builds. #3058 #3072 (2.3.7)
- Better finding of OpenCV on Windows. #3062 (2.3.7.1)
* Testing and Continuous integration (CI) systems:
- Completely get rid of the old appveyor CI. #2782 (2.3.2.0)
- Test against libtiff 4.2 in the "latest releases" test. #2792 (2.3.2.0)
- Got Windows CI fully working, bit by bit. #2796 #2798 #2805 #2821 #2826
#2834 #2835 #2836 #2838 #2839 #2840 (2.3.3)
- Reduce redundant verbosty in CI output logs during dependency building.
- Modify hash_test to verify correctness and stability of the hashes.
#2853 (2.3.3)
- When building custom OpenEXR with build_openexr.bash, don't have it
build the examples. #2857 (2.2.12/2.3.3)
- Speed up CI by using GitHub 'cache' actions + ccache. #2859 (2.2.12/2.3.3)
- Separate stages (setup, deps, build, test) into separate GHA "steps"
for better logging and understanding of the timing and performance.
#2862 (2.2.12/2.3.3)
- Now actively testing libheif in Linux CI. #2866 (2.2.12/2.3.3)
- Remove the last vestiges of Travis-CI, which we no longer use. #2871
(2.2.12/2.3.3)
- For failed tests, add CMake cache and log part of the saved artifacts.
(2.2.12/2.3.3)
- CI now tests build in C++20 mode. #2891 (2.3.3)
- Our CI clang-format test now uses LLVM/clang-format 11. #2966
- Test the clang11 + C++17 combo. #3004 (2.3.6)
* Platform support:
- Fixes for mingw. #2698 (2.3.0.0)
- Windows fix: correct OIIO_API declaration on aligned_malloc,
aligned_free of platform.h. #2701 (2.3.0.0)
- Fix boost linkage problem on Windows. #2727 (2.3.0.1/2.2.8)
- Fix warnings when compiling webpinput.cpp on 32 bit systems. #2783
(2.3.2.0)
- Fix problems with `copysign` sometimes defined as a preprocessor symbol
on Windows. #2800 (2.3.2)
- Fixes related to Mac M1-based systems: Fix crash in ustring internals
#2990 (2.3.5/2.2.15.1)
Notable documentation changes:
* Make Readthedocs generate downloadable HTML as well as PDF. #2746
* Explain how to read image data into separate per-channel buffers. #2756
(2.3.0.1/2.2.8)
* Improve use of breathe and formatting. #2762 (2.3.1.0)
* Remove documentation of deprecated ImageBufAlgo functions. #2762 (2.3.1.0)
* Document missing texture option fields. #2762 (2.3.1.0)
* Starting to use "sphinx_tabs" as a clear way to present how things should
be done for different language bindings. #2768 (2.3.1.0)
Release 2.2.21 (1 Jul 2022) -- compared to 2.2.20
--------------------------------------------------
* BMP: gain the ability to read some very old varieties of BMP files. #3375
* BMP: better detection of corrupted files with nonsensical image dimensions
or total size. #3434
* BMP: protect against corrupted files that have palette indices out of bound.
#3435
* ffmpeg: Support for ffmpeg 5.0. #3282
* ffmpeg: protect against possible double-free. #3376
* ffmpeg: make the supported file extension check be case-insensitive. This
prevents movie files from being incorrectly unable to recognize their format
if they have the wrong capitalization of the file extension. #3364
* hdr/rgbe files: Avoid possible Windows crash when dealing with characters
with the high bit set. #3310
* TIFF: fix read problems with TIFF files with non-zero y offset. #3419
* Dev goodies: ustring has added a from_hash() static method #3397, and a
ustringhash helper class #3436.
* simd.h fixes for armv7 and aarch32. #3361
Release 2.2.20 (1 Feb 2022) -- compared to 2.2.19
--------------------------------------------------
* Fix some address sanitizer failures. #3160
* Build/CI: Deal with OpenColor renaming its master branch to main. #3169
* Windows: Fix error when compiling with MSVC. #3168
* Fix excessive memory usage when saving EXR with many channels. #3176
* TIFF: now works for 16-bit palette images. #3260
* Fix ImageBuf::read bug for images of mixed per-channel data types. #3088
Release 2.2.19 (1 Nov 2021) -- compared to 2.2.18
--------------------------------------------------
* Better catching of exceptions thrown by OCIO 1.x if it encounters 2.0 config
files. #3089
* Address new warnings revealed by clang 13. #3122
* Fixed some minor python binding bugs. #3074 #3094
* Fix when building with Clang on big-endian architectures. #3133
* Fix occasional build breaks related to OpenCV headers. #3135
* Improvements to NetBSD and OpenBSD support. #3137.
* Fixes to work with the libraw 202110 snapshot. #3143
Release 2.2.18 (1 Sep 2021) -- compared to 2.2.17
--------------------------------------------------
* Honor env variable `CUE_THREADS` (used by OpenCue) to set the default size
of OIIO's thread pool. #3038
* Compatibility with OpenColorIO 2.1. #3050
* Dev: Extend Sysutil::getenv() to take a default if the environment variable
is not found. #3047 #3048
Release 2.2.17 (1 Aug 2021) -- compared to 2.2.16
--------------------------------------------------
* Output to DPX files now supports IOProxy. (Input already did.) #3013
* typedesc.h: TypeDesc can now describe 2D and 3D bounding boxes, as arrays
of 2 VEC2 aggregates (for 2D) or VEC3 aggregates (for 3D) with "BOX"
semantic. The shorthand for these are `TypeBox2`, `TypeBox3` (for float),
and `TypeBox2i` and `TypeBox3i` for integer or pixel coordinte
boxes. #3008
* Build: Fixes for building against fmt 8.0.0. #3007
* Build: Finding boost is more flexible when desiring static libraries. #3031
Release 2.2.16 (1 Jul 2021) -- compared to 2.2.15
--------------------------------------------------
* New UDIM texture name patterns recognized: `%(UDIM)d` is the Houdini
convention, and `_u##v##` is for Animal Logic's internal renderer. #3006
(2.2.16)
* When doing color space transforms on images with > 4 channels -- the
additional channels are now copied unaltered, rather than leaving them
black. #2987 (2.2.16)
* FFMpeg: fix some encodings that didn't correctly recognize that they were
more than 8 bits, or had alpha. #2989 (2.2.16)
* farmhash.h: Clean up all non-namespaced preprocessor symbols that are set
by this header and may pollute the caller's symbols. #3002 (2.2.16)
* Fix crashes on M1 (ARM) based Mac. #2990 (2.2.16)
* Bug fix: avid divide-by-0 error computing chunk size for invalid image
sizes. #2983 (2.2.16)
* `make_texture` (and `maketx` and `oiiotool -otex`) no longer crash if you
try to make a texture out of a "deep" image; instead it will return an
error message. #2991 (2.2.16)
* filesystem.h: Improve exception safety in Filesystem directory iteration.
#2998 (2.2.16)
* Build: Improve finding of OpenJPEG. #2979 (2.2.16)
* Build: Support for building OIIO with gcc 11. #2995 (2.2.16)
* Build: Fixes to accommodate Imath 3.1 upcoming changes. #2996 (2.2.16)
* Build: Finding FFMpeg now correctly detects the version. #2994 (2.2.16)
* Build: clang + C++17 + LibRaw < 0.20 are mutually incompatible. Detect
this combination and warn / disable libraw under those conditions. #3003
(2.2.16)
* Build: Fix CMake behavior for `REQUIRED_DEPS` due to a typo. #3011 (2.2.16)
* Build: Fixes for detecting and using Ptex, among other things got the
version wrong. #3001 (2.2.16)
* Testing: If a feature is disabled, skip its tests rather than reporting
them as broken. #2988 (2.2.16)
* CI: Test the combination of clang and C++17. #3003 (2.2.16)
Release 2.2.15.1 (3 Jun 2021) -- compared to 2.2.15.0
-----------------------------------------------------
* Fix crash / misbehavior in ustring internals on Apple M1 ARM. #2990
Release 2.2.15 (1 Jun 2021) -- compared to 2.2.14
--------------------------------------------------
* BMP improvements: now support reading rle-compressed BMP files; writing
single channel grayscale images now save as 8bpp palette images intead of
24bpp; and reading 8bpp where all palette entries have R==G==B looks like
a 1-channel grayscale instead of 3-channel RGB. #2976
* Bug: IBA::render_text did not properly account for alpha of the draw
color. #2981
* Bug: Fix runaway parsing time for pathological XMP metadata. #2968
* Bug: Fixed a crash is ImageCacheFile::read_unmipped when sampling
* Fix exported cmake config files, which could fail if Imath and OpenEXR
weren't the at the same version number. #2975
* Build: Modernize cmake to use targets for PNG and ZLIB. #2957
* Build: Fix to accommodate upcoming OpenColorIO 2.1 deprecation of
parseColorSpaceFromString. #2961
* Build: Changes to make it build against TBB 2021. #2985
* Dev: Add Strutil functions: find, rfind, ifind, irfind. #2960
Release 2.2.14 (1 May 2021) -- compared to 2.2.13
--------------------------------------------------
* JPEG: Improve readin of files with mildly corrupted headers. #2927
* TIFF: Support IOProxy for input. #2921
* BMP: Improve performance by eliminating wasteful per-scanline allocation
and needless data copying. #2934
* Build/CI: Fix all the build_*.bash scripts to not use cmake --config flag,
which was harmlessly ignored but is flagged as an error for CMake 3.20.
#2931
* Build: More fixes related to supporting a wide range of OpenEXR versions,
and making our exported cmake configs correctly transmit dependencies on
OpenEXR include paths. #2935 #2941 #2942 #2947
* ImageBufAlgo::fillholes_pushpull: added logic to correctly set the spec's
alpha_channel field when generating sub-images. #2939
* Python: MakeTxBumpWithSlopes enum value had been inadvertently omitted
from the Python bindings. #2951
Release 2.2.13 (1 Apr 2021) -- compared to 2.2.12
--------------------------------------------------
* Get ready for upcoming Imath/OpenEXR 3.0 release. #2883 #2894 #2897
* GIF: Fix error checking for non-existent GIF files. #2886
* Fix crash related to ImageBuf:set_write_format() when used in conjunction
with a file format that doesn't support per-channel data types. #2885
* Make RAW files handle Unicode filenames on Windows. #2888
* Make sure OIIO builds cleanly with C++20. #2891
* BMP: Several bug fixes when reading an older (V1) variety of BMP files.
#2899
* Targa: fix reading tga files with 0-sized thumbnails. #2903
* TIFF: fix reading of certain tiled TIFF files with the vertical image size
is not a whole multiple of the tile size. #2895
* Avoid OpenColorIO v2 exception when color-conversion of single points (we
didn't pass a correct stride, thinking that stride isn't used for a single
point). #2911
* make_texture: When outputting to a 'half' data format file, clamp filtered
values to the half range so large values don't inadvertently get converted
to half 'infinite' values. #2892
* Improvements to ustring internals to ensure that no two ustrings ever end
up with the same hash() value. #2870
* Fixes for compiler errors when compiling farmhash.h using C++11 mode with
newer gcc (6+). #2914
Release 2.2.12 (1 Mar 2021) -- compared to 2.2.11
--------------------------------------------------
* Bug fix: Improve parsing of XMP records in metadata: more correct handling
of lists/sequences, better inference of types that look like int or float
(rather than forcing unknown fields into strings), fixed bugs in parsing
rational values. #2865
* Bug fix: Fix loading PSB files with cinf tags. #2877
* Build: Improvements to building or linking static libraries. #2854
* Build: Change default STOP_ON_WARNING to OFF for release branches
(including this one) so that small change in compiler warnings after our
release don't break anybody's builds. (Though we still stop on warnings
for CI builds). #2861
* Build: More clear warnings about using OpenVDB 8+ when building for C++11,
because OpenVDB 8 requires C++14 or higher. #2860
* Build: The pkgconfig OpenImageIO.pc was specifying the include path
incorrectly. #2869
* Build: More gracefully handle building against a custom Imath/OpenEXR even
when another exists in the system area. #2876
* Build: Minor fixes to build cleanly against the upcoming Imath 3.0. #2878
* Dev: hash.h: Make many of the hash functions constexpr. #2843
* Dev: Better unit tests to verify correctness and stability over time of
the hash functions. #2853
* Dev: unordered_map_concurrent.h: New methods find_or_insert, nobin_mask().
#2867
* CI: Speed up CI builds by not building OpenEXR example programes. #2857
* CI: Speed up CI by using GitHub 'cache' actions + ccache. #2859
* CI: Separate stages (setup, deps, build, test) into separate GHA "steps"
for better logging and understanding of the timing and performance. #2862
* CI: Now actively testing libheif in Linux CI. #2866
* CI: Remove the last vestiges of Travis-CI, which we no longer use. #2871
* CI: For failed tests, add CMake cache and log part of the saved artifacts.
* PSA: Avoid libheif 1.10 on Mac, it is broken. Libheif 1.11 is fine.
Release 2.2.11.1 (1 Feb 2021) -- compared to 2.2.11.0
-----------------------------------------------------
* Fix build break against Qt 5.15.2 (deprecated enum). #2852
Release 2.2.11 (1 Feb 2021) -- compared to 2.2.10
--------------------------------------------------
* Enabled AVIF decoding of heic files (requires libheif >= 1.7 and for it
to have been built with an AV1 encoder/decoder). #2811 #2812 #2814 #2818
* `oiiotool --help` now prints the OCIO version (where it prints the config
file and known color space). #2849
* Bug fix: ImageBufAlgo::ociolook() and ociofiletransform() internally
reversed the order of their `inverse` and `unpremult` arguments, making it
hard to select the inverse transformation. #2844
* Fix memory leak during decoding of some invalid Exif blocks. #2824
* Build: Fixed warnings when building against python 2.x. #2815
* Build: No longer directly link against python libraries when unnecessary.
#2807
* Build: Better finding of OpenJpeg 2.4. #2829
* Build: On Windows, fix some linkage problems by changing the pybind11
bindings to make a CMake "shared" library rather than "module". Sounds
wrong, but seems to work. We will reverse if this causes problems. #2830
* Build: On Mac, libheif 1.10 is very broken. Don't use that version. #2847
* Build: Fix build break against changes coming in future libtiff, where it
is changing from some libtiff-defined integer types to the equivalent
stdint.h types. #2848
* Build: Some final touches to prepare for release of OpenColor 2.0. #2849
* Build: Fixes to support the libraw 202101 snapshot (their in-progress
0.21.0). #2850
* CI: Got Windows CI fully working, bit by bit. #2796 #2805 #2821 #2826
#2834 #2835 #2836 #2840
* Dev: Some internal rearrangement of span.h and string_view.h (that should
not break source or ABI compatibility). `std::size()` and `std::ssize()`
should work with OIIO::span and OIIO::string_view now. #2827
* Dev: ustring internals now have a way to ask for the list of ustrings
whose hashses collided. #2786
* Dev: New Filesystem::generic_filepath() returnss a filepath in generic
format (not OS specific). #2819
* Dev: ArgParse::abort() lets the response to a command line argument signal
that no further arguments should be parsed. #2820
* Dev: In oiioversion.h, added macros `OIIO_VERSION_GREATER_EQUAL` and
`OIIO_VERSION_LESS`. #2831
* Dev: In platform.h, added macro OIIO_INLINE_CONSTEXPR, which is equivalent
to `inline constexpr` for C++17, but just constexpr for C++ <= 14. #2832
Release 2.2.10.1 (7 Jan 2021) -- compared to 2.2.10.0
-----------------------------------------------------
* Fix build break against OpenColorIO v2.0 RC1. #2817
Release 2.2.10 (1 Jan 2021) -- compared to 2.2.9
-------------------------------------------------
* GIF: support for UTF-8 filenames on Windows. #2777
* OpenEXR: Fix rare crash during multithreaded output. #2781
* OpenEXR: Fix potential crash parsing OpenEXR header that contains Rational
attributes with certain values. #2791
* Improved error reporting for IOFile failures to open the file. #2780
* Build: Fix webp compile break on 32 bit systems. #2783
* Build/Windows: Fix symbol definition conflict with pyconfig.h. #2800
* CI: Test the latest fmt, PugiXML, and pybind11 releases. #2778
* Docs: Add explanation of oiiotool -otex modifiers that were missing from
the docs. #2790 Fix some duplicated text. #2785
Release 2.2.9 (1 Dec 2020) -- compared to 2.2.8
-------------------------------------------------
* TIFF: Fix reading files with "separate" planarconfig and rowsperstrip more
than 1. #2757 (2.3.0.1/2.2.9)
* RAW: add "raw:user_flip" input configuration hint to control this option
in the underlying libraw. #2769 (2.3.1.0)
* PNG: Read Exif data from PNG files. #2767
* BMP: Fix reading BMP images with bottom-to-top row order. #2776
* Work to ensure that OIIO will build correctly against the upcoming
Imath 3.0 and OpenEXR 3.0.
* Make the OIIO CMake files work properly if OIIO is a subproject. Also
various other CMake script refactoring. #2770
Release 2.2.9 (1 Dec 2020) -- compared to 2.2.8
-------------------------------------------------
* TIFF: Fix reading files with "separate" planarconfig and rowsperstrip more
than 1. #2757 (2.3.0.1/2.2.9)
* RAW: add "raw:user_flip" input configuration hint to control this option
in the underlying libraw. #2769 (2.3.1.0)
* PNG: Read Exif data from PNG files. #2767
* BMP: Fix reading BMP images with bottom-to-top row order. #2776
* Work to ensure that OIIO will build correctly against the upcoming
Imath 3.0 and OpenEXR 3.0. #2771
* Make the OIIO CMake files work properly if OIIO is a subproject. Also
various other CMake script refactoring. #2770
Release 2.2.8 (1 Nov 2020) -- compared to 2.2.7
-------------------------------------------------
* Fix that ImageBuf images backed by ImageCache, could hold an outdated copy
of the image if it was in the imagecache once, then changed on disk. #2696
* Fix stack overflow crash in IBA::colorconvert of unusually wide images.
#2716
* Fix boost linkage problem on Windows. #2727
* Fix broken reads of 16 bit iff files. #2736
* Fix make_texture incorrectly setting tile sizes. #2737
* Fix incorrect ARM NEON code in simd.h. #2739
* Improve oiiotool --chappend and --siappend, allowing an optional modifier
":n=" to specify the number of images from the stack to be combined by
having their channels or subimages appended. #2709
* WebP: add support for requesting compression "lossless". #2726
* Improve build system for finding Python, now if a specific version is not
requested, default to whichever is found rather than always defaulting to
Python 2.7. #2705 #2764
* Fix deprecation warnings when building with very new PugiXML versions.
#2733
* Fix ImageCache bug: add_tile/get_tile not properly honoring when
`chend < chbegin` it should get all channels. #2742
* Fix build break when strutil.h was included in Cuda 10.1 code. #2743
* Docs: Make readthedocs generate downloadable htm as well as pdf. #2746
* Improve oiiotool's guessing about the desired output format based on
inputs (in the absence of `-d` to specify the format). #2717
* JPEG output: add support for writing progressive JPEGS (set the
attribute "jpeg:progressive" to 1). #2749
* WebP input improvements including: RGB images are kept as RGB instead of
always adding alpha; more efficient by skipping alpha premultiplication
when it's unnecessary; now can read animated WebP images as multi-subimage
files. #2730
* Docs: ImageInput chapter now has an example of reading image data into
separate per-channel buffers. #2756
* Fixes to build against recent changes in OpenColorIO v2 master. #2765
Release 2.2.7 (1 Oct 2020) -- compared to 2.2.6
-------------------------------------------------
* oiiotool new command: `--pastemeta` takes two images as arguments, and
appends all the metadata (only) from the first image onto the second
image's pixels and metadata, producing a combined image. #2708
* TIFF: Fix broken reads of multi-subimage non-spectral files (such as
photometric YCbCr mode). #2692
* Python: When transferring blocks of pixels (e.g., `ImageInput.read_image()`
or `ImageOutput.write_scanline()`), "half" pixels ended up mangled into
uint16, but now they use the correct numpy.float16 type. #2694
* Python: The value passed to `attribute(name, typedesc, value)` can now be
a tuple, list, numpy array, or scalar value. #2695
* `IBA::contrast_remap()` fixes bug that could crash for very large images
#2704
* Warn about recommended minimum versions of some dependencies.
* Windows fix: correct OIIO_API declaration on aligned_malloc, aligned_free
of platform.h. #2701
* Fix oiiotool crash when --resize was used with multi-subimage files. #2711
* Bug fix in Strutil::splits and splitsv: when input is the empty string,
the split should return no pieces. #2712
* Support for libheif 1.9. #2724
* TIFF: Fix spec() and spec_dimensions() for MIPmapped TIFF files, they
did not recognize being asked to return the specs for invalid subimage
indices. #2723
* TIFF: add ability to output 1bpp TIFF files. #2722
Release 2.2 (1 Sept 2020) -- compared to 2.1
----------------------------------------------
New minimum dependencies:
* pybind11 >= 2.4.2
* openjpeg >= 2.0 (if JPEG-2000 support is desired) #2555 (2.2.2)
New major features and public API changes:
* Improved IOProxy support:
- ImageInput and ImageOutput now have direct API level support for IOProxy
in their `open()` and `create()` calls, as well as a new `set_ioproxy()`
method in these classes. #2434 (2.2.0)
- ImageBuf can now specify a proxy upon construction for reading, and for
writing via a `set_write_ioproxy()` method that applies to subsequent
`write` call. #2477 (2.2.1).
- DPX input now supports IOProxy. #2659 #2665 (2.2.5)
- ImageCache (and ImageBuf backed by ImageCache) entries that use IOProxy
are careful not to fully "close" their proxies when trying to reclaim
space in the file cache (that would be bad, since the proxy can't be
re-opened). #2666 (2.2.5)
* Improved support for multi-subimage files:
- oiiotool: Nearly all operations now allow an optional `:subimages=...`
modifier that restricts the operation to be performed on only a subset
of named or indexed subimages. See docs for details. #2582
- Python `ImageBuf.write()` variety added that takes an open
`ImageOutput`. This is the key to writing a multi-subimage file (such
as a multi-part OpenEXR) using the Python ImageBuf interface. #2640
(2.2.4)
- Fixes to `--croptofull` and `-o` with multi-subimages. #2684 (2.2.6)
* Python bindings:
- Python bindings have been added for missing ParamValue constructors.
We previously exposed the PV constructors from just a plain int, float,
or string, but there wasn't an easy way to construct from arbitrary
data like there is in C++. Now there is. #2417 (2.2.0)
- `ParamValueList.attribute()`, when being passed attributes containing
multiple values, now can have those values passed as Python lists and
numpy arrays (previously they had to be tuples). #2437 (2.1.11/2.2.0)
- `ImageBufAlgo.color_range_check()` is now available to the Python
bindings (was previously only C++). #2602 (2.2.3)
- New variety of `ImageBuf.write()` that takes an open `ImageOutput`.
This is the key to writing a multi-subimage file (such as a multi-part
OpenEXR) using the Python ImageBuf interface. #2640 (2.2.4)
* ImageBuf:
- Easier direct use of IOProxy with ImageBuf: constructor and reset()
for file-reading ImageBuf now take an optional `IProxy*` parameter,
and a new `set_write_ioproxy()` method can supply an IOProxy for
subsequent `write()`. #2477 (2.2.1)
- Add `ImageBuf::setpixel()` methods that use cspan instead of ptr/len.
#2443 (2.1.10/2.2.0)
- Add "missing" `reset()` varieties so that every IB constructor has a
corresponding `reset()` with the same parameters and vice versa. #2460
* ImageBufAlgo:
- New `repremult()` is like premult, but will not premult when alpha is
zero. #2447 (2.2.0)
- New `max()` and `min()` functions take the pixel-by-pixel maximum
or minimum of two images. #2470 (2.2.1)
* ColorConfig: add OCIO "role" accessors. #2548
* Low-res I/O of images to terminals that support full color and Unicode
characters. Just output to a file ending in ".term", and it will convert
(on certain terminals) to an image displayed directly in the terminal.
#2631 (2.2.4)
Try:
`oiiotool myfile.exr -o out.term`
Performance improvements:
* Greatly improved TextureSystem/ImageCache performance in highly threaded
situations where access to the cache was a main bottlenecks. In renders of
scenes with lots of texture access, with dozens of threads all contending
for the cache, we are seeing some cases of 30-40% reduction in total
render time. In scenes that are less texture-bottlenecked, or that don't
use huge numbers of threads, the improvement is more modest. #2433 (2.2.0)
Fixes and feature enhancements:
* oiiotool:
- Intelligible error messages (rather than crashes) if you attempt to
create an image too big to fit in memory. #2414 (2.2.0)
- `--create` and `--proxy` take an additional optional modifier:
`:type=name` that specifies the type of buffer to be created (the
default, as usual, is to create an internal float-based buffer). #2414
(2.2.0)
- `-o` optional argument `:type=name` is a new (and preferred) synonym
for what used to be `:datatype=`. #2414 (2.2.0)
- `--autotrim` now correctly trims to the union of the nonzero regions
of all subimages, instead of incorrectly trimming all subimages to the
nonzero region of the first subimage. #2497 (2.2.1.2)
- `--subimage` now has an optional `:delete=1` modifier that causes the
operation to delete one named or indexed subimage (versus the default
behavior of extracing one subimage and deleting the others). #2575
(2.2.3)
- The list of dependent libraries (part of `oiiotool --help`) now
correctly reports the OpenEXR version. #2604 (2.2.3)
- Fix: `--eraseattrib` did not correctly apply to all subimages when
`-a` or `:allsubimages=1` were used. #2632 (2.2.4)
* ImageBuf / ImageBufAlgo:
- Huge ImageBuf allocation failures (more than available RAM) now are
caught and treated as an ImageBuf error, rather than crashing with an
uncaught exception. #2414 (2.2.0)
- ImageBuf constructors that are passed an ImageSpec (for creating an
allocated writable IB or "wrapping" a user buffer) now check that the
spec passed has enough information to know the size of the buffer
(i.e., it will be recognized as an error if the width, height, depth,
channels, or data type have not been set validly). #2460
- Fix: `ImageBuf::getchannel()` did not honor its `wrap` parameter.
#2465 (2.2.1/2.1.12)
- Fix: `IBA::reorient()` and `IBA::computePixelHashSHA1()` did not honor
their `nthreads` parameter. #2465 (2.2.1/2.1.12)
- `resample()` has been modified to more closely match `resize` by using
clamp wrap mode to avoid a black fade at the outer edge of the
resampled area. #2481
- Fix: `ImageBuf::get_pixels()` did not honor the stride parameters.
#2487. (2.1.12/2.2.1)
- Fix `resize()` to avoid a crash / stack overflow in certain cases of
very big images and very large filter kernels. #2643 (2.2.4)
- Minor improvements to ImageBuf error formatting. #2653 (2.2.5)
* ImageCache / TextureSystem / maketx:
- New IC/TS attribute "trust_file_extensions", if nonzero, is a promise
that all files can be counted on for their formats to match their
extensions, which eliminates some redundant opens and format checks
in the IC/TS and can reduce needless network/filesystem work. Use with
caution! #2421 (2.2.0)
- texture3d() fixed some cases where derivative results were not
correctly copied to the outputs. #2475 (2.2.1)
- `maketx`/`IBA::make_texture`: better error detection and messages when
using "overscan" textures with formats that can't support it properly.
(Punchline: only OpenEXR textures can do it.) #2521 (2.2.0)
- Fix possible redundant tile reads in multithread situations (harmless,
but makes for redundant I/O). #2557 (2.2.2)
* Python:
- Fixed a bug that lost certain string arguments, especially when passing
a TypeDesc as its string equivalent. #2587 (2.1.16/2.2.3)
- Fixed broken bindings of ImageSpec.erase_attribute. #2654
(2.1.19/2.2.6)
- Fix missing ImageInput.read_image(). #2677 (2.1.19/2.2.6)
* Exif read: guard better against out of range offsets, fixes crashes when
reading jpeg files with malformed exif blocks. #2429 (2.1.10/2.2.0)
* Fix: `ImageSpec::erase_attribute()` did not honor its `searchtype`
parameter. #2465 (2.2.1/2.1.12)
* Fix: Some ColorProcessor::apply() methods were not using their `chanstride`
parameters correctly. #2475 (2.1.12)
* Fix: iinfo return code now properly indicates failures for files that
can't be opened. #2511 (2.2.2/2.1.13)
* DPX:
- IOProxy reading is now supported. #2659 (2.2.5)
- DPX: Add support for reading DPX files from IOProxy (such as from a
memory buffer). #2659 #2665 (2.1.19/2.2.6)
* HDR files:
- Improve performance when reading HDR files out of order (when combined
with ImageCache, observed to speed up out-of-order HDR reading by 18x).
#2662 (2.2.5)
* JPEG:
- Fix resolution unit metadata that was not properly set in JPEG output.
#2516 (2.2.2/2.1.13)
- Fix loss of 'config' info upon close/reopen. #2549 (2.2.2)
* OpenEXR:
- Add support for reading and writing float vector metadata. #2459 #2486
- Fix bug in the channel sorting order when channels are "X" and
"Y" (was reversing the order by confusing "Y" for "luminance"). #2595
(2.1.16/2.2.3)
- We no longer automatically rename the "worldToNDC" attribute to
"worldtoscreen" and vice versa. #2609 (2.2.4)
* PNG:
- Fix loss of 'config' info upon close/reopen. #2549 (2.2.2)
- Add output configuration hint "png:filter" to control PNG filter
options. #2650 (2.2.5)
- Improved propagation of PNG write errors. #2655 (2.2.5)
- Tell libpng to turn off sRGB profile check, which has a known problem of
false positives. #2655 (2.2.5)
- New output option "png:filter" allows control of the PNG filter
options. #2650 (2.1.19/2.2.6)
* Raw images:
- Support for new Canon .cr3 file, but only if you build against
libraw >= 0.20.0 developer snapshot. #2484 (2.2.1) #2613 (2.2.4)
- RAW input: set the "raw:flip" attribute if the underlying libraw did a
reorientation. #2572 (2.1.15/2.2.3)
- Avoid errors (in libraw) that resulted from multiple threads opening
raw files at the same time. #2633 (2.2.4)
* RLA:
- Additional sanity checks and error checks/messages for detecting files
that might be first mistaken for RLA files, but actually are not.
#2600 (2.2.3)
* TIFF:
- Internal improvements to handling metadata retrieval for certain
unusual tags. #2504 (2.2.2/2.1.13)
- Fix subtle bug when reading Exif directory in the header. #2540
(2.2.2)
* Video files:
- Fix possible infinite loop in the FFMpeg-based reader. #2576
(2.1.15/2.2.3)
Developer goodies / internals:
* argparse.h:
- Complete overhaul of ArgParse to make it more like Python argparse.
Please read the extensive comments in argparse.h for documentation.
For now, the old ArgParse interface still works, but is considered
deprecated. #2531 (2.2.2) #2618 #2622 (2.2.4)
* attrdelegate.h:
- New `as_vec<>` method returns the whole attribute as a std::vector.
#2528 (2.2.2)
* filesystem.h:
- Catch previously uncaught exceptions that could happen in certain
Filesystem utility calls. #2522 (2.2.2/2.1.13)
- New `write_text_file()` convenience function for opening, writing, and
closing a text file all in one step. #2597 (2.2.3)
* fmath.h:
- clamp() is 2x faster. #2491 (2.1.12/2.2.2)
- Very minor fix to OIIO::clamp(), shouldn't affect normal use with
floats at all, but fixed a subtle quasi-bug in OSL. #2594 (2.1.15/2.2.3)
- madd() is improved especially on platforms without fma hardware
#2492 (2.1.12/2.2.2)
- Perf improvements to `fast_sin`, `fast_cos` #2495 (2.1.12/2.2.2)
- New `safe_fmod()` is faster than std::fmod. #2495 (2.1.12/2.2.2)
- New `fast_neg` is faster than simple negation in many cases, if you
don't care that -(0.0) is 0.0 (rather than a true -0.0). #2495
(2.1.12/2.2.2)
- Add vint4, vint8, and vint16 versions of `clamp()`. #2617 (2.2.4)
* oiioversion.h:
- Fix typo that left the OIIO_VERSION_RELEASE_TYPE symbol undefined.
#2616 (2.2.4/2.1.16)
- Add new `OIIO_MAKE_VERSION(maj,min,patch)` macro that constructs the
proper single integer code for a release version. #2641 (2.2.4/2.1.17)
* paramlist.h:
- New `ParamValueList::find_pv()` method that is similar to `find()` but
returns a pointer rather than an iterator and nullptr if the attribute
is not found. #2527 (2.2.2/2.1.13)
- Add `get_indexed()` method to ParamValueList and AttrDelegate. #2526
(2.2.2/2.1.13)
* platform.h:
- `OIIO_PRETTY_FUNCTION` definition is more robust for weird compilers
(will fall back to `__FUNCTION__` if all else fails). #2413 (2.2.0)
- `OIIO_ALIGN` definition is more robust, will fall back to C++11
alignas when not a compiler with special declspecs (instead of being
a compile time error!). #2412 (2.2.0)
- A variety of `OIIO_PRAGMA_...` macros have been added to help deal
with compiler-specific pragmas. #2467 (2.2.1)
* simd.h:
- vfloat3 has added a `normalize()`, `length()`, and `length2()`
methods, to more closely match the syntax of Imath::Vec3f. #2437
(2.1.11/2.2.0)
- fix errors in vbool == and !=. #2463 (2.1.11/2.2.1)
- Add float3 versions of abs, sign, ceil, floor, and round (they already
existed for float4, float8, float16, but not float4). #2612 (2.2.4)
- Improved support for ARM NEON SIMD (caveat: this is still not well
tested). #2614 (2.2.4)
- Improve performance for many float8/int8 functions and operators when
running on only 4-wide hardware, by using two 4-wide instructions
instead of reverting to scalar. #2621
* span.h:
- Allow the constructor from `std::vector` to allow vectors with custom
allocators. #2533 (2.2.2)
* strutil.h / ustring.h:
- New `Strutil::concat()` and `ustring::concat()` concatenate two
strings, more efficiently than `sprintf("%s%s")` by avoiding any
unnecessary copies or temporary heap allocations. #2478 (2.2.1)
- Strutil::upper() and lower() return all-upper and all-lowercase
versions of a string (like `to_lower` and `to_upper`, but not in-place
modifications of the existing string). #2525 (2.2.2/2.1.13)
- `Strutil::repeat()` has been internally rewritten to more efficient by
avoiding any unnecessary copies or temporary heap allocations. #2478
(2.2.1)
* typedesc.h:
- TypeDesc has additional helpers of constexpr values TypeFloat2,
TypeVector2, TypeVector4, TypeVector2i, TypePointer. #2592 (2.1.16/2.2.3)
* unordered_map_concurrent.h:
- Fix missing decrement of `size()` after `erase()`. #2624 (2.2.4)
* More reshuffling of printf-style vs fmt-style string formatting. #2424
(2.2.0) #2649 (2.2.4)
* Internals: changed a lot of assertions to only happen in debug build mode,
and changed a lot that happen in release builds to only print the error
but not force a termination. #2435 (2.1.11/2.2.0)
* Internals: Replaced most uses of `boost::thread_specific_ptr` with C++11
`thread_local`. #2431 (2.2.0)
* oiiotool: Big overhaul and simplification of internals. #2586 #2589 (2.2.3)
Build/test system improvements and platform ports:
* CMake build system and scripts:
- New non-default CMake build flag `EXTRA_WARNINGS`, when turned on, will
cause gcc and clang to compile with -Wextra. This identified many new
warnings (mostly about unused parameters) and fixes were applied in
#2464, #2465, #2471, #2475, #2476. (2.2.1)
- FindOpenColorIO.cmake now correctly discerns the OCIO version (2.2.1),
and now sets up a true imported target. #2529 (2.2.2)
- FindOpenEXR.cmake has better detection of debug openexr libraries.
#2505 (2.2.2/2.1.13)
- Additional cmake controls to customize required vs optional
dependencies: `REQUIRED_DEPS` (list of dependencies normally optional
that should be treated as required) and `OPTIONAL_DEPS` (list of
dependencies normally required that should be optional). The main use
case is to force certain optional deps to be required for your studio,
to be sure that missing deps are a full build break, and not a
successful build that silently lacks features you need. #2507
(2.2.2/2.1.13)
- Fix exported cmake config file, it was not ensuring that the Imath
headers properly ended up in the config include path. #2515
(2.2.2/2.1.13)
- Change all CMake references to PACKAGE_FOUND to Package_Found (or
whatever capitalization matches the actual package name). #2569 (2.2.2)
- The exported CMake config files now set cmake variable
`OpenImageIO_PLUGIN_SEARCH_PATH` #2584 (2.1.16/2.2.3)
- Improved hints printed about missing dependencies. #2682 (2.2.6)
* Dependency version support:
- Pybind11 is no longer auto-downloaded. It is assumed to be
pre-installed. A script `src/build-scripts/build_pybind11.bash` is
provided for convenience if you lack a system install. #2503 (2.2.2)
Bump the minimum pybind11 version that we accept, to 2.4.2 #2453,
and add fixes to allow support of pybind11 2.5. #2637 (2.2.4)
- fmt libray: Un-embed fmt headers. If they are not found on the system
at build time, they will be auto-downloaded. #2439 (2.2.0)
- Support for building against libraw 0.20. #2484 (2.2.1) #2580 (2.2.3)
- Build properly against OpenColorIO's current master (which is the
in-progress work on OCIO v2). #2530 (2.2.2)
- Fix static boost to not overlink on Windows. #2537 (2.2.2)
- Fix build breaks against TOT libtiff master, which had `#define`
clashes with our GPSTag enum values. #2539 (2.2.2)
- Ensure compatibility and clean builds with clang 10. #2518 (2.2.2/2.1.3)
- Support verified for gcc 10, added to CI tests. #2590 (2.2.3)
- Support for Qt 5.15. #2605 (2.2.3)
- Fixes to support OpenColorIO 2.0. #2636 (2.2.4)
- Build against more recent versions of fmtlib. #2639 (2.2.4)
- Included scripts to download and build libtiff #2543 (2.1.13/2.2.2),
PugiXML #2648 (2.2.4), zlib, libpng, libjpeg-turbo. #2663 (2.2.5)
- Minor fixes for libheif 1.8. #2685 (2.2.6)
- Add a build_libtiff.bash script to make it easy to build the libtiff
dependency. #2543 (2.1.13/2.2.2)
- "tinyformat" is no longer used, even optionally. We have switched
entirely to fmtlib, which is more similar to the upcoming C++20
std::format. #2647 (2.2.4)
* Testing and Continuous integration (CI) systems:
- Mostly retire TravisCI for ordinary Linux x64 and Mac builds, now we
rely on GitHub Actions CI. Nightly test added. Use ASWF docker images
to test exactly against VFX Platform 2019 and 2020 configurations.
#2563 (2.2.2) #2579 (2.2.3)
- Add Travis test for arm64 (aka aarch64) builds. This is still a work
in progress, and not all testsuite tests pass. #2634 (2.2.4)
- Our CI tests now have a "bleeding edge" matrix entry that tests against
the current TOT master build of libtiff, openexr (#2549), and pybind11
(#2556). (2.2.2)
- GitHub CI tests, when they fail, leave behind an "artifact" tar file
containing the output of the tests, so that they can be easily
downloaded and inspected (or used to create new reference output).
#2606 (2.2.4)
- CI Mac tests switch to Python 3.8. (2.2.4)
- Windows CI switched from using Vcpkg to building its own dependencies.
#2663 (2.2.5)
- Testing of TGA now assumes the test images are in the oiio-images
project, not separately downloaded (the download location disappeared
from the net). #2512 (2.2.2)
- Beef up OpenEXR compliance tests, many more examples from
openexr-images, including many corrupted image failure cases. #2607
(2.2.4)
* Progress on support for using Conan for dependency installation. This is
experimental, it can't yet build all dependencies. Work in progress.
#2461 (2.2.1)
* The version of gif.h that we embed for GIF output has been updated.
#2466 (2.2.1)
* The `farmhash` functions have been cleaned up to be more careful that none
of their internal symbols are left visible to the linker. #2473 (2.2.1)
* Clarification about .so name versioning: In supported releases, .so
contains major.minor, but in master (where ABI is not guaranteed stable,
we name major.minor.patch). #2488 (2.2.1)
* Protect against certain compiler preprocessor errors for user programs
that include strutil.h but also include `fmt` on its own. #2498.
(2.1.12/2.2.2)
* Build: All the `build_foo.bash` helper scripts now use `set -ex` to ensure
that if any individual commands in the script fails, the whole thing will
exit with a failure. #2520 (2.2.2/2.1.3)
* Fix compiler warning about incorrect extra braces. #2554 (2.2.2)
* All build-scripts bash scripts now use /usr/bin/env to find bash. #2558
(2.2.2)
* Avoid possible link errors by fully hiding IBA functions taking IplImage
parameters, when no OpenCV headers are encountered. #2568 (2.2.2)
* In (obsolete) FindOpenImageIO.cmake, avoid CMake warnings by changing
the name `OPENIMAGEIO_FOUND` -> `OpenImageIO_FOUND`. #2578 (2.2.3)
* Moved headers that are not part of OIIO's supported public API, but that
still must be installed to be transitively included, do a "detail"
subdirectory. #2648 (2.2.4)
* Fix many Mingw compiler warnings. #2657 (2.1.19/2.2.5)
* Windows: Improve Strutil::get_rest_arguments() handling of long path
syntax (`"\\?\"` style). #2661 (2.1.19/2.2.6)
* Fix compilation error with armv7 + x86. #2660 (2.2.6)
Notable documentation changes:
* Many enhancements in the ImageBuf chapter. #2460 (2.1.11/2.2.0)
* The `LICENSE-THIRD-PARTY.md` file has been reorganized to be clearer,
grouping parts with identical licenses. #2469 (2.2.1) And renamed to
"THIRD-PARTY.md" to avoid confusing GitHub's reporting of the project's
license. (2.2.6)
* Many fixes to the new readthedocs documentation, especially fixes to
section cross-references and links.
* Improved INSTALL instructions. (2.2.2/2.1.13)
* Fix a variety of breaks on ReadTheDocs. #2581
* Improve the way we discuss optional modifiers.
* Document the PNG output controls for compression level. #2642 (2.2.4)
* Lots of spell check / typo fixes in docs and comments. #2678 (2.2.6)
* INSTALL.md: remove misleading old Windows build instructions. #2679 (2.2.6)
* New file .git-blame-ignore-revs lists the hashes of commits that only
performed bulk reformatting, so that they don't misattribute authorship
or modification date. Everybody do this in your local repo:
`git config blame.ignoreRevsFile .git-blame-ignore-revs`
#2683 (2.2.6)
Release 2.1.19 (1 Sep 2020) -- compared to 2.1.18
-------------------------------------------------
* DPX: Add support for reading DPX files from IOProxy (such as from a memory
buffer). #2659 #2665
* PNG: New output option "png:filter" allows control of the PNG filter
options. #2650
* Python: Fix binding of ImageSpec.erase_attribute. #2654
* Python: Fix missing ImageInput.read_image(). #2677
* Windows: Improve Strutil::get_rest_arguments() handling of long path
syntax (`"\\?\"` style). #2661
* MinGW: Fix a variety of compiler warnings on this platform. #2657
* Fix build on Elbrus 2000 architecture. #2671
Release 2.1.18 (1 Aug 2020) -- compared to 2.1.17
-------------------------------------------------
* Python `ImageBuf.write()` added a variety that takes an open ImageOutput.
This is the key to writing multi-subimage files from Python. #2640
* `oiiotool --eraseattrib` fixed: was not applying to all subimages. #2632
* RAW: Improve thread safety when more than one thread might be opening
different raw files at the same time. #2633
* unordered_map_concurrent fixed a missing size decrement upon erase(). #2624
* Fixes to support certain recent pybind11 changes. #2637
* Fixes to support OpenColorIO v2. #2636
* Fixes to support more recent fmtlib versions. #2639
* PNG: document the "png:compressionLevel" output hint. #2642
* In oiioversion.h, add a `OIIO_MAKE_VERSION` macro that constructs the
integer code for a particular major/minor/patch release. #2641
* 2.1.18.1: Fix version number which for 2.1.18.0 unfortunately still
said it was 2.1.17.
Release 2.1.17 (1 Jul 2020) -- compared to 2.1.16
-------------------------------------------------
* Build: Use the discovered python binary name, to address the Fedora
restriction that you must use "python2" or "python3" by name. #2598
* Docs: ImageBufAlgo::nonzero_region had been inadvertently left out of the
Python chapter.
* Improve RLA reader's ability to detect corrupt or non-RLA files, which
fixes crashes you could get from trying to read non-image files. #2600
* Support for building against Qt 5.15. (Note: Qt support is only needed
for the "iv" viewer.) #2605
* Fixes to support LibRaw 0.20 (which is currently in beta3). Note that this
will make it incompatible with 0.20 beta1 and beta2, due to a fixed typo
of a struct field in one of the LibRaw's headers. #2613
* oiioversion.h: fix typo that left the OIIO_VERSION_RELEASE_TYPE symbol
undefined. #2616
Release 2.1.16 (1 Jun 2020) -- compared to 2.1.15
-------------------------------------------------
* OpenEXR: Fix bug in the channel sorting order when channels are "X" and
"Y" (was reversing the order by confusing "Y" for "luminance"). #2595
* Python: Fixed a bug that lost certain string arguments, especially when
passing a TypeDesc as its string equivalent. #2587
* fmath: Very minor fix to OIIO::clamp(), shouldn't affect normal use with
floats at all, but fixed a subtle quasi-bug in OSL. #2594
* TypeDesc has additional helpers of constexpr values TypeFloat2,
TypeVector2, TypeVector4, TypeVector2i, TypePointer. #2592
* Build: The exported CMake config files now set cmake variable
`OpenImageIO_PLUGIN_SEARCH_PATH` #2584
* Docs: improvements and fixes to broken page rendering.
Release 2.1.15 (11 May 2020) -- compared to 2.1.14
--------------------------------------------------
* RAW input: set the "raw:flip" attribute if the underlying libraw did a
reorientation. #2572
* Movie files: Fix possible infinite loop in the FFMpeg-based reader. #2576
* Fixes to allow building against the forthcoming LibRaw 0.20 release. #2484
* Documentation fixes. #2581
Release 2.1.14 (1 May 2020) -- compared to 2.1.13
-------------------------------------------------
* JPEG & PNG: Fix loss of 'config' hints upon close and reopen that could
happen in cases where scanlines were accessed out of order. #2549
* TIFF: Fix subtle bug when reading certain Exif directories in the header.
#2540
* Added OCIO role accessors to the ColorConfig class. #2548
* Improve error messages when overscan textures are not possible. #2521
* Build: fix problems when compiling against current libtiff master (symbol
clash on GPSTAG values). #2539
* Build: Fix static boost to not overlink. #2537.
* Fix some problems with the docs. #2541
* `AttrDelegate::as_vec<>` returns the whole attribute as a std::vector.
#2528
* Add a build_libtiff.bash script to make it easy to build the libtiff
dependency. #2543
Release 2.1.13 (1 Apr 2020) -- compared to 2.1.12
-------------------------------------------------
* Fix: iinfo return code now properly indicates failures for files that
can't be opened. #2511
* Fix: Catch previously uncaught exceptions that could happen in certain
Filesystem utility calls. #2522
* Fi: Some `span<>` methods involving `std::vector` now will work properly
with vectors that have custom allocators. #2533
* Fix: ParamValueList `add_or_replace()` was failing to "replace" if the new
attribute had a different type than the existing one. #2527
* Fix: Fix resolution unit metadata that was not properly set in JPEG output.
#2516
* Build: Additional cmake controls to customize required vs optional
dependencies -- `REQUIRED_DEPS` (list of dependencies normally optional
that should be treated as required) and `OPTIONAL_DEPS` (list of
dependencies normally required that should be optional). The main use case
is to force certain optional deps to be required for your studio, to be
sure that missing deps are a full build break, and not a successful build
that silently lacks features you need. #2507
* Build: Fix exported config file, it was not ensuring that the Imath
headers properly ended up in the config include path. #2515
* Build: Ensure compatibility and clean builds with clang 10. #2518
* Build: All the `build_foo.bash` helper scripts now use `set -ex` to ensure
that if any individual commands in the script fails, the whole thing will
exit with a failure. #2520
* Build correctly against the current master branch of OpenColorIO
(previously we were only testing and properly building against the 1.1
release). #2530
* Added Strutil::upper() and lower() functions. #2525
* ParamValueList enhancement: new `find_pv()` method that is similar to
`find()` but returns a pointer rather than an iterator and nullptr if the
attribute is not found. #2527
* Add `get_indexed()` method to ParamValueList and AttrDelegate. #2526
Release 2.1.12 (2 Mar 2020) -- compared to 2.1.11
-------------------------------------------------
* Fix: plugin.h getsym() didn't pass along its report_error param. #2465
* Fix: ImageBuf::getchannel() did not honor its wrap parameter. #2465
* Fix: ImageSpec::erase_attribute() did not honor its `searchtype` param. #2465
* Fix: IBA::reorient() and IBA::computePixelsHashSHA1() did not honor their
`nthreads` parameter. #2465.
* IBA::resample() now uses the clamp wrap mode to avoid black fringing and
match the behavior of resize(). #2481
* Fix: ImageBuf::get_pixels() did not honor the stride parameters. #2487.
* fmath.h perf improvements: clamp() is 2x faster; madd() is improved
especially on platforms without fma hardware; perf improvements in
`fast_sin`, `fast_cos`; new `safe_fmod` is faster than std::fmod, new
`fast_neg` is faster than simple negation in many cases, if you don't care
that -(0.0) is 0.0 (rather than a true -0.0). #2491 #2492 #2494
* strutil: New function: concat(). #2478
* Build: un-embed the 'fmt' headers, instead auto-download if not found.
#2439
* Build: Protect against certain compiler preprocessor errors for user
programs that include strutil.h but also include `fmt` on its own. #2498.
Release 2.1.11 (1 Feb 2020) -- compared to 2.1.10
-------------------------------------------------
* Python bindings for `ParamValueList.attribute()`, when being passed
attributes containing multiple values, now can have those values passed
as Python lists and numpy arrays (previously they had to be tuples).
#2437
* OpenEXR support is extended to handle float vector metadata. #2459
* Developer goody: simd.h vfloat3 has added a `normalize()`, `length()`,
and `length2()` methods, to more closely match the syntax of Imath::Vec3f.
#2437
* Internals: changed a lot of assertions to only happen in debug build mode,
and changed a lot that happen in release builds to only print the error
but not force a termination. #2435
* simd.h fix errors in vbool == and !=. #2463
* Make sure the embedded 'farmhash' implementation is completely hidden
behind proper namespaces. #2473
* Many docs fixes.
Release 2.1.10.1 (10 Jan 2019)
------------------------------
* Automatically detect the need to link against libatomic (fixes build on
some less common platforms, should not affect Windows, MacOS, or Linux on
x86/x86_64 users). #2450 #2455
* Fixes to unordered_map_concurrent.h that affect some users who it for
things other than OIIO per se (recent changes to the internals broke its
use for the default underlying std::unordered_map). #2454
* Bump the minimum pybind11 version that we auto-download, and also be sure
to auto-download if pybind11 is found on the system already but is not an
adequately new version. #2453
* If libsquish is found on the system at build time, use it, rather than
the "embedded" copy. This can improve build times of OIIO, and also helps
us comply with Debian packaging rules that forbid using embedded versions
of other Debian packages that can be used as simple dependencies. #2451
* Fixes to formatting of man page generation (resolves warnings on Debian
build process).
Release 2.1.10 (1 Jan 2020) -- compared to 2.1.9
--------------------------------------------------
* Suppress warnings with old libraw on earlier gcc versions. #2413
* Exif read: guard better against out of range offests, fixes crashes when
reading jpeg files with malformed exif blocks. #2429
* Python: add binding for missing ParamValue constructors. #2417
* oiiotool & ImageBuf better error messages (rather than mysterious crash)
for certain out of memory conditions. #2414
* oiiotool --create and --pattern take a new optional parameter:
`:type=name` that overrides the default behavior of allocating all
internal buffers as float. #2414
* Lots of typo fixes in docs, comments, and error messages. #2438
* Fix broken version in the built openimageio.pc PkgConfig file. #2441
* Fix typo in build script that caused it to fail to set the right symbol
definition when building static libs. #2442.
* More robust OIIO_PRETTY_FUNCTION definition. #2413
* Better fallback for OIIO_ALIGN, rely on C++11. #2412
* Docs: fix some II and IO chapter examples that used old open() API.
* Build: bump default version of pybind11 to 2.4.3. #2436
* Add ImageBuf::setpixel() methods that use cspan instead of ptr/len. #2443
* Fixes to cmake config generation. #2448
Release 2.1 (8 Dec 2019) -- compared to 2.0
----------------------------------------------
New minimum dependencies:
* CMake minimum is now 3.12. #2348 (2.1.5)
Major new features and performance improvements:
* Support for HEIC/HEIF images. HEIC is the still-image sibling of HEVC
(a.k.a. H.265), and compresses to about half the size of JPEG but with
higher visual quality. #2160 #2188 (2.1.0)
* oiiotool new commands: `-evaloff` `-evalon` `--metamerge` `--originoffset`
* ImageCache/TextureSystem improved perf of the tile and file caches under
heavy thread contention. In the context of a renderer, we have seen
improvements of around 7% in overall render time, averaged across a suite
of typical production scenes. #2314, #2316 (2.1.3) #2381 #2407 (2.1.8)
* Fix huge DPX reading performance regression. Technically this is a bug
fix that restores performance we once had, but it's a huge speedup.
#2333 (2.1.4)
* Reading individual frames from very-multi-image files (movie files) has
been greatly sped up (10x or more). #2345 (2.1.4)
Public API changes:
* ImageSpec new methods `getattribute()` and `getattributetype()`. #2204
(2.1.1)
* ImageSpec and ParamValueList now support operator `["name"]` as a way
to set and retrieve attributes. For example,
myimagespec["compression"] = "zip";
myimagespec["PixelAspectRatio"] = 1.0f;
int dither = myimagespec["oiio:dither"].get<int>();
std::string cs = myimagespec["colorspace"];
See the documentation about "Attribute Delegates" for more information,
or the new header `attrdelegate.h`. #2204 (2.1.1) #2297 (2.1.3)
* ImageSpec::find_attribute now will retrieve "datawindow" and "displaywindow"
(type int[4] for images int[6] for volumes) giving the OpenEXR-like bounds
even though there is no such named metadata for OIIO (the results will
assembled from x, y, width, height, etc.). #2110 (2.1.0/2.0.4)
* "Compression" names (where applicable) can now have the quality appended
to the name (e.g., `"jpeg:85"`) instead of requiring quality to be passed
as a separate piece of metadata. #2111 (2.1.0/2.0.5)
* Python: define `__version__` for the module. #2096 (2.1.0/2.0.4)
* Python error reporting for `ImageOutput` and `ImageBuf.set_pixels`
involving transferring pixel arrays have changed from throwing exceptions
to reporting errors through the usual OIIO error return codes and queries.
#2127 (2.1.0/2.0.5)
* New shell environment variable `OPENIMAGEIO_OPTIONS` can now be used to
set global `OIIO::attribute()` settings upon startup (comma separated
name=value syntax). #2128 (2.1.0/2.0.5)
* ImageInput open-with-config new attribute `"missingcolor"` can supply
a value for missing tiles or scanlines in a file in lieu of treating it
as an error (for example, how OpenEXR allows missing tiles, or when reading
an incompletely-written image file). A new global `OIIO::attribute()`
setting (same name) also accomplishes the same thing for all files read.
Note that this is only advisory, and not all file times are able to do
this (OpenEXR is the main one of interest, so that works). #2129 (2.1.0/2.0.5)
* `ImageCache::invalidate()` and `TextureSystem::invalidate()` now take an
optional `force` parameter (default: true) that if false, will only
invalidate a file if it has been updated on disk since it was first opened.
#2133, #2166 (2.1.0/2.0.5)
* New filter name `"nuke-lanczos6"` matches the "lanczos6" filter from Nuke.
In reality, it's identical to our "lanczos3", but the name alias is
supposed to make it more clear which one to use to match Nuke, which uses
a different nomenclature (our "3" is radius, their "6" is full width).
#2136 (2.1.0/2.0.5)
* New helper functions in `typedesc.h`: `tostring()` converts nearly any
TypeDesc-described data to a readable string, `convert_type()` does data
type conversions as instructed by TypeDesc's. #2204 (2.1.1)
* ImageBuf:
- Construction from an ImageSpec now takes an optional `zero` parameter
that directly controls whether the new ImageBuf should have its buffer
zeroed out or left uninitialized. #2237 (2.1.2)
- `set_write_format()` method has a new flavor that takes a
`cspan<TypeDesc>` that can supply per-channel data types. #2239 (2.1.1)
* ColorConfig:
- Added `getColorSpaceFamilyByName()`, `getColorSpaceNames()`,
`getLookNames()`, `getDisplayNames()`, `getDefaultDisplayName()`,
`getViewNames()`, `getDefaultViewName()`. #2248 (2.1.2)
- Added Python bindings for ColorConfig. #2248 (2.1.2)
* Formal version numbers are now four parts: MAJOR.MINOR.PATCH.TWEAK.
#2313,#2319 (2.1.3)
* ImageInput now sets "oiio:subimages" attribute to an int representing the
number of subimages in a multi-image file -- if known from reading just
the header. A positive value can be relied upon (including 1), but a
value of 0 or no such metadata does not necessarily mean there are not
multiple subimages, it just means it could not be known from inexpensively
reading only the header. #2344 (2.1.4)
* The `imagesize_t` and `stride_t` values now have revised definitions.
It should be fully API/ABI compatible (at least for 64 bit systems), but
is a simpler, more modern, more platform-independent definition.
#2351 (2.1.5)
* `DeepData` has been altered to make pixel indices and total counts int64_t
rather than int, in order to be safe for very large images that have > 2
Gpixels. #2363 (2.1.5)
* On OSX, we now expect non-embedded plugins to follow the convention of
naming runtime-loaded modules `foo.imageio.so` (just like on Linux),
whereas we previously used the convention of `foo.imageio.dylib`. Turns
out that dylib is supposed to be only for shared libraries, not runtime
loadable modules. #2376 (2.1.6)
Fixes and feature enhancements:
* oiiotool:
- New `-evaloff` and `-evalon` lets you disable and enable the expression
substitution for regions of arguments (for example, if you have an
input image filename that contains `{}` brace characters that you want
interpreted literally, not evaluated as an expression). #2100 (2.1.0/2.0.4)
- `--dumpdata` has more intelligible output for uint8 images. #2124
(2.1.0/2.0.4)
- Fixed but that could prevent `-iconvert oiio:UnassociatedAlpha 1` from
correctly propagating to the input reader. #2172 (2.1.0/2.0.6)
- `-o:all=1` (which outputs all subimages to separate files) fixed a
crash that would occur if any of the subimages were 0x0 (it could
happen; now it just skips outputting those subimages). #2171 (2.1.0)
- Improved support of files with multiple subimages: Several commands
honored `-a` but did not respect individual `allsubimages=` modifiers
(--ch, --sattrib, --attrib, --caption, --clear-keywords,
--iscolorspace, --orientation, --clamp, -fixnan); Several commands
always worked on all subimages, but now properly respect `-a` and
`allsubimages=` (--origin, --fullpixels, --croptofull, --trim);
Several commands were totally unaware of subimages, but now are so and
respect `-a` and `allsubimages=` (--crop, --fullsize, --zover, --fill,
--resize, --resample). #2202 #2219, #2242 (2.1.1, 2.1.2)
- `--ociodisplay`: empty display or view names imply using the default
display or view. #2273 (2.0.10/2.1.3)
- `--metamerge` option causes binary image operations to try to "merge"
the metadata of their inputs, rather than simply copy the metadata
from the first input and ignore the others. #2311 (2.1.3)
- `--colormap` now supports a new "turbo" color map option. #2320 (2.1.4)
- Expression evaluation has been extended to support operators `//` for
integer division (whereas `/` is floating point division), and `%`
for integer modulus. #2362 (2.1.5)
- New `--originoffset` resets the data window origin relative to its
previous value (versus the existing `--origin` that sets it absolutely).
#2369 (2.1.5)
- `--paste` has two new optional modifiers: `:all=1` pastes the entire
stack of images together (versus the default of just pasting the top
two images on the stack), and `:mergeroi=1` causes the result to have
the merged data window of all inputs, instead of the foreground image
clipping against the boundary of the background image data. #2369 (2.1.5)
- `--paste` now works with deep images. #2369 (2.1.5)
- `--paste` semantics have changed: the meaning of pasting FG into BG at
(x,y) now means that the (0,0) origin of FG ends up at (x,y), whereas
before it placed the corner of FG's data window at (x,y). This will
not change behavior for ordinary images where FG's data window is (0,0),
but it makes behavior more sensible for "cropped" or "shrink-wrapped"
FG images that have non-zero data window origin. #2369 (2.1.5)
- `paste()` is now multithreaded and therefore much faster. #2369 (2.1.5)
- `--ociotransform` no longer issues an error message when no valid OCIO
configuration is found (because it's not needed for this operation).
#2371 (2.1.5)
- `--compare` would fail to notice differences in deep images where the
corresponding pixels had differing numbers of samples. #2381 (2.1.8)
* ImageBuf/ImageBufAlgo:
- `IBA::channel_append()` previously always forced its result to be float,
if it wasn't previously initialized. Now it uses the usual type-merging
logic, making the result the "widest" type of the inputs. #2095
(2.1.0/2.0.4)
- IBA `resize()`, `fit()`, and `resample()` are no longer restricted to
source and destination images having the same number of channels.
#2125 (2.1.0/2.0.5)
- Improve numerical precision of the unpremult/premult part of certain
color transformations. #2164 (2.1.0)
- `ImageBuf::read()` now properly forwards the "progress" parameters
to any underlying call to `read_image`. #2196 (2.1.1)
- The `OIIO_DISPATCH_COMMON_TYPES2/3` macros used internally by many IBA
functions have been expanded to handle a few more cases "natively"
without conversion to/from float. This may make a few cases of odd
data type combinations have higher precision. #2203 (2.0.8/2.1.1)
- IBA `resize()` fix precision issues for 'double' images. #2211
(2.0.8/2.1.1)
- `IBA::ociodisplay()`: empty display or view names imply using the
default display or view. #2273 (2.0.10/2.1.3)
- `IBA::fixNonFinite()`: fixed impicit float/double casts to half. #2301
(2.0.10/2.1.3)
- `IBA::color_map()`: now supports a new "turbo" color map option.
#2320 (2.1.4)
- `IBA::paste()` now works with deep images. #2369 (2.1.5)
- `paste` semantics have changed: the meaning of pasting FG into BG at
(x,y) now means that the (0,0) origin of FG ends up at (x,y), whereas
before it placed the corner of FG's data window at (x,y). This will
not change behavior for ordinary images where FG's data window is (0,0),
but it makes behavior more sensible for "cropped" or "shrink-wrapped"
FG images that have non-zero data window origin. #2369 (2.1.5)
- `paste()` is now multithreaded and therefore much faster. #2369 (2.1.5)
- `ociotransform()` no longer issues an error message when no valid OCIO
configuration is found (because it's not needed for this operation).
#2371 (2.1.5)
- Python `ociotransform` and `ociolook` mixed up the names and orders of
the `inverse` and `unpremult` params, making it so that you couldn't
properly specify the inverse. #2371 (2.1.5)
- `IBA::compare()` would fail to notice differences in deep images where
the corresponding pixels had differing numbers of samples. #2381 (2.1.8)
* ImageInput read_image/scanline/tile fixed subtle bugs for certain
combination of strides and channel subset reads. #2108 (2.1.0/2.0.4)
* ImageCache / TextureSystem / maketx:
- More specific error message when tile reads appear to be due to the
file having changed or been overwritten on disk since it was first
opened. #2115 (2.1.0/2.0.4)
- maketx: the `-u` (update mode) is slightly less conservative now,
no longer forcing a rebuild of the texture just because the file uses
a different relative directory path than last time. #2109 (2.1.0/2.0.4)
- Protection against certain divide-by-zero errors when using
very blurry latong environment map lookups. #2121 (2.1.0/2.0.5)
- `maketx -u` is smarter about which textures to avoid re-making because
they are repeats of earlier commands. #2140 (2.1.0/2.05)
- Fix possible maketx crash on Windows due to a stack overflow within
MSVS's implementation of std::regex_replace! #2173 (2.1.0/2.0.6)
- TS: New attribute "max_mip_res" limits filtered texture access to MIP
levels that are no higher than this resolution in any dimension. The
default is 1<<30, meaning no effective limit. #2174 (2.1.1)
- Stats now count the number of `TS::get_texture_info/IC::get_image_info`
calls, like it did before for texture, etc. #2223 (2.1.1)
- `TS::environment()` can resolve subimage by name, as we do for
texture() and texture3d(). #2263
- Improvements to error message propagation. (2.1.3)
- Avoid creating a new thread info struct while resolving udims. #2318
(2.1.4)
- Work around bug in OpenEXR, where dwaa/dwab compression can crash when
used on 1-channel tiled images with a tile size < 16. This can crop up
for MIP-maps (high levels where rez < 16), so we detect this case and
switch automatically to "zip" compression. #2378 (2.1.6)
- When converting images to texture (via maketx or IBA::make_texture),
correctly handle color space conversions for greyscale images.
#2400 (2.1.8)
* iv viewer:
- Image info window now sorts the metadata, in the same manner as
`iinfo -v` or `oiiotool -info -v`. #2159 (2.1.0/2.0.5)
* All command line utilities, when run with just `--help`, will exit with
return code 0. In other words, `utility --help` is not an error.
#2364 (2.1.5) #2383 (2.1.8)
* Python bindings:
- Fix inability for Python to set timecode attributes (specifically, it
was trouble setting ImageSpec attributes that were unsigned int
arrays). #2279 (2.0.9/2.1.3)
* Improved performance for ustring creation and lookup. #2315 (2.1.3)
* BMP:
- Fix bugs related to files with very high resolution (mostly 32 bit
int overflow issues and care to use 64 bit fseeks). Also speed up
reading and writing very large files. #2404 (2.1.8)
* DPX:
- Now recognizes the new transfer/colorimetric code for ADX. #2119
(2.1.0/2.0.4)
- Fix potential crash when file open fails. #2186 (2.0.7/2.1.1)
- Support for reading and writing 1-channel (luma, etc.) images. #2294
(2.0.10/2.1.3)
- Fix huge DPX reading performance regression. #2333 (2.1.4)
- Fix bugs related to int32 math that would lead to incorrect
behavior in very high-resolution files. #2396 (2.1.3)
* ffmpeg/Movie files:
- Reading individual frames from very-multi-image files (movie files) has
been greatly sped up (10x or more). #2345 (2.1.4)
- Support for reading movie files that (a) contain alpha channels, and
(b) have bit depths > 8 bits per channel. Previously, such files
would be read, but would be presented to the app as a 3-channel
8 bit/channel RGB. #2349 (2.1.5)
* FITS:
- Fix 16 and 32 bit int pixels which FITS spec says are signed, but we
were treating as unsigned. #2178 (2.1.0)
* HDR/RGBE:
- Fix bugs related to files with very high resolution (mostly 32 bit
int overflow issues and care to use 64 bit fseek). Also speed up
reading and writing very large files. #2406 (2.1.8)
* IFF
- Detect and error requests to open files for writing with resolutions
too high to be properly supported by IFF files. #2397 (2.1.8)
- Improve error messages when a file can't be opened. #2398 (2.1.8)
* JPEG:
- Read-from-memory is now supported via IOProxy use. #2180. (2.1.1)
* JPEG-2000:
- Disable JPEG-2000 support for the (rare) combination of an older
OpenJPEG 1.x and EMBEDPLUGINS=0 mode, which was buggy. The solution if
you really need EMBEDPLUGINS and JPEG-2000 support is to please use
OpenJPEG >= 2.0. #2183. (2.0.7/2.1.1)
* OpenEXR:
- Avoid some OpenEXR/libIlmImf internal errors with DWA compression by
switching to zip for single channel images with certain small tile
sizes. #2147 (2.1.0/2.0.5)
- Suppress empty string subimage name (fixes a problem with certain
V-Ray written multi-part exr images). #2190 (2.1.1/2.0.7)
- Fixed bug that broke th ability to specify compression of multipart
OpenEXR files. #2252 (2.1.2)
* PNG:
- More careful catching and reporting errors and corrupt PNG files.
#2167 (2.1.0/2.0.6)
- IOProxy reading is now supported. #2180. (2.1.1)
* PSD:
- When reading PSD files with multiple PhotoShop "layers", properly set
ImageSpec x, y to the image plane offset (upper left corner) of the
layer, and set and metadata "oiio:subimagename" to the layer name.
#2170 (2.1.0)
* RAW:
- Clarification about color spaces: The open-with-config hint
"raw:ColorSpace" is more careful about color primaries versus transfer
curve. Asking for "sRGB" (which is the default) gives you true sRGB --
both color primaries and transfer. Asking for "linear" gives you
linear transfer with sRGB/Rec709 primaries. The default is true sRGB,
because it will behave just like JPEG. #2260 (2.1.2)
- Added "raw:half_size" and "raw:user_mul" configuration attributes.
#2307 (2.1.3)
* RLA:
- Improved logic for determining the single best data type to report
for all channels. #2282 (2.1.3)
* SGI:
- Fix bugs when writing extremely high resolution images, due to
internal 32 bit arithmetic on file offsets. #2402 (2.1.8)
- Speed up reading and writing of SGI files. #2402 (2.1.8)
* Targa:
- Put in checks to detect and error requests to write Targa with
resolutions too high to be supported by the format. #2405 (2.1.8)
* TIFF:
- Fix problems with JPEG compression in some cases. #2117 (2.1.0/2.0.4)
- Fix error where reading just a subset of channels, if that subset did
not include the alpha channel but the image was "unassociated alpha",
the attempt to automatically associate (i.e. "premultiply" the alpha)
upon read would get bogus values because the alpha channel was not
actually read. Now in this case it will not do the premultiplication.
So if you are purposely reading RGB only from an RGBA file that is
specifically "unassociated alpha", beware that you will not get the
automatic premultiplication. #2122 (2.1.0/2.0.4)
- More careful check and error reporting when user tries to request
writing to a TIFF file mixed channel data types (which is not supported
by the underlying libtiff). #2112 (2.1.0/2.0.5)
- Fix crash reading certain old nconvert-written TIFF files.
#2207 (2.0.8/2.1.1)
- Fix bugs when reading TIFF "cmyk" files. #2292. (2.0.10/2.1.3)
- Correctly handle read and write of 6, 14, and 24 bit per sample
images. #2296 (2.1.3)
- Fix potential deadlock in TIFF I/O: minor flaw with threadpool method
#2327 (2.1.4)
* WebP:
- Fix bug that gave totally incorrect image read for webp images that
had a smaller width than height. #2120 (2.1.0/2.0.4)
* zfile:
- Put in checks to detect and error requests to write zfiles with
resolutions too high to be supported by the format. #2403 (2.1.8)
* Fix potential threadpool deadlock issue that could happen if you were
(among possibly other things?) simultaneously calling make_texture from
multiple application threads. #2132 (2.1.0/2.0.4)
* ImageInput/ImageOutput `create()` now properly lets you specify the type
for reader/writer from the format name itself (versus just the extension,
for example "openexr" versus "exr"). #2185 (2.1.1)
* Make all the various "could not open" messages across the writers use the
same phrasing. #2189 (2.1.1)
* Better care in some image readers/writers to avoid errors stemming from
integer overflow when compting the size of large images. #2232 (2.1.2)
Build/test system improvements and platform ports:
* Major overhaul of the CMake build system now that our CMake minimum is
3.12. #2348 #2352 #2357 #2360 #2368 #2370 #2372 #2373 (2.1.5) #2392 (2.1.8)
Highlights:
- All optional dependencies (e.g. "Pkg") now can be disabled (even if
found) with cmake -DUSE_PKG=0 or environment variable USE_PKG=0.
Previously, some packages supported this, others did not.
- All dependencies can be given find hints via -DPkg_ROOT=path or by
setting environment variable Pkg_ROOT=path. Previously, some did, some
didn't, and the ones that did had totally inconsistent names for the
path hint variable (PKG_HOME, PKG_ROOT_DIR, PKG_PATH, etc).
- Nice color coded status messages making it much more clear which
dependencies were found, which were not, which were disabled.
- Use standard BUILD_SHARED_LIBS to control shared vs static libraries,
replacing the old nonstandard BUILDSTATIC name.
- Use correct PUBLIC/PRIVATE marks with target_link_libraries and
target_include_directories, and rely on cmake properly understanding
the transitive dependencies.
- CMAKE_DEBUG_POSTFIX adds an optional suffix to debug libraries.
- CMAKE_CXX_STANDARD to control C++ standard (instead of our nonstandard
USE_CPP).
- CXX_VISIBILITY_PRESET controls symbol visibility defaults now, not
our nonstandard HIDE_SYMBOLS. And the default is to keep everything
hidden that is not part of the public API.
- At config time, `ENABLE_<name>=0` (either as a CMake variable or an
env variable) can be used to disable any individual file format or
command line utility. E.g., `cmake -DENABLE_PNG=0 -DENABLE_oiiotool=0`
This makes it easier to greatly reduce build time if you are 100%
sure there are formats or components you don't want or need.
- Config based install and usage.
* Deprecate "missingmath.h". What little of it is still needed (it mostly
addressed shortcomings of old MSVS releases) is now in fmath.h. #2086
* Remove "osdep.h" header that was no longer needed. #2097
* Appveyor scripts have been overhauled and simplified by relying on
`vcpkg` to build dependencies. #2113 (2.1.0/2.0.4)
* Detect and error if builder is trying to use a pybind11 that's too old.
#2144 (2.1.0/2.0.5)
* New CMake build-time option `OIIO_LIBNAME_SUFFIX` (default: empty) lets
you append an optional name to the libraries produced (to disambiguate
two builds at the same facility or distro, much like you could do before
for symbols with custom namespaces). #2148 (2.1.0)
* On MacOS 10.14 Mojave, fix warnings during `iv` compiler about OpenGL
being deprecated in future releases. #2151 (2.1.0/2.0.5)
* At build time, the Python version used can be controlled by setting the
environment variable `$OIIO_PYTHON_VERSION`, which if set will initialize
the default value of the CMake variable `PYTHON_VERSION`. #2161 (2.0.5/2.1.0)
* On non-Windows systems, the build now generates a PkgConfig file, installed
at `CMAKE_INSTALL_PREFIX/lib/pkgconfig/OpenImageIO.pc`. #2158 (2.0.5/2.1.0)
* A new unit test has been backported from master, which tries to perform a
series of read/write tests on every file format. In particular, this tests
certain error conditions, like files not existing, or the directory not
being writable, etc. #2181, #2189 (2.0.8/2.1.1)
* Support for CI tests on CircleCI. #2194 (2.1.1) Retired in #2389 (2.1.8).
* New build-time flag `USE_WEBP=0` can be used to disable building WebP
format support even on platforms where webp libraries are found.
#2200 (2.1.1)
* Fix compiler warnings on Windows. #2209 #2213 #2214 #2392
* Crashes in the command line utilities now attempt to print a stack trace
to aid in debugging (but only if OIIO is built with Boost >= 1.65, because
it relies on the Boost stacktrace library). #2229 (2.0.8/2.1.1)
* Add gcc9 to Travis tet matrix and fix gcc9 related warnings. #2235 (2.1.2)
* VDB reader pulled in the TBB libraries using the wrong CMake variable.
#2274 (2.1.3)
* The embedded `fmt` implementation has been updated to fix windows
warnings. #2280 (2.1.3)
* Improvements for finding certain new Boost versions. #2293 (2.0.10/2.1.3)
* Build fixes for MinGW. #2304, #2308 (2.0.10/2.1.3)
* libraw: Fixes to make it build properly against some changes in the
libraw development master. #2306 (2.1.3)
* Use GitHub Actions CI. Eliminate Appveyor and some Travis tests.
#2334 (2.1.4) #2356 (2.1.5) #2395 (2.1.8)
* Updated and improved finding of OpenEXR and `build_openexr.bash` script
that we use for CI. #2343 (2.1.4)
* Upgrade the pybind11 version that we auto-install when not found (to 2.4.2),
and add logic to detect the presence of some pybind11 versions that are
known to be (buggily) incompatible with C++11. #2347 (2.1.5)
* Fix errors in very new MSVS versions where it identified a suspicious
practice of ImageBuf's use of a unique_ptr of an undefined type. Jump
through some hoops to make that legal. #2350 (2.1.5)
* All Python scripts in the tests have been modified as needed to make them
correct for both Python 2.7 and 3.x. #2355, #2358 (2.1.5)
* Tests are now safe to run in parallel and in unspecified order. Running
with env variable CTEST_PARALLEL_LEVEL=[something more than 1] greatly
speeds up the full testsuite on multi-core machines. #2365 (2.1.5)
* Bump robin map version to latest release (v0.6.2) #2401 (2.1.8)
* Fix compiler warnings in ustring.h when `_LIBCPP_VERSION` is not defined.
#2415 (2.1.8.1)
* Bump fmt library to v6.1.0. #2423 (2.1.8.1)
Developer goodies / internals:
* argparse.h:
- Add unit tests. #2192 (2.1.1)
- Add "%1" which is like "%*" but its list receives only arguments that
come *before* any other dash-led arguments. #2192 (2.1.1)
- Allow specifiers such as "%d:WIDTH" the part before the colon is the
type specifier, the part after the colon is the name of the parameter
for documentation purposes. #2312 (2.1.3)
* attrdelegate.h:
- New header implements "attribute delegates." (Read header for details)
#2204 (2.1.1)
* dassert.h:
- Spruce up assertion macros: more uniform wording, and use pretty
function printing to show what function the failure was in. #2262
- The new preferred assertion macros are `OIIO_ASSERT` and `OIIO_DASSERT`.
The `OIIO_ASSERT` always tests and prints an error message if the test
fails, but now only aborts when compiled without NDEBUG defined (i.e.
no abort for release builds), whereas `OIIO_DASSERT` is for debug mode
only and does nothing at all (not even perform the test) in release
mode. These names and behaviors are preferred over the old `ASSERT`
and `DASSERT`, though those deprecated names will continue for at least
another major release. #2411 (2.1.8.1)
* filesystem.h:
- Change many filesystem calls to take string_view arguments. #2388 (2.1.8)
- New `fseek()` and `ftell()` that always use 64 bit offsets to be safe
for very large files. #2399 (2.1.8)
* fmath.h:
- `safe_mod()` does integer modulus but protects against mod-by-zero
exceptions. #2121 (2.1.0/2.0.5)
- pow2roundup/pow2rounddown have been renamed ceil2/floor2 to reflect
future C++20 standard. The old names still work, so it's a fully back
compatible change. #2199 (2.0.8/2.1.1)
- To match C++20 notation, use `rotl()` template innstead of separate
rotl32/rotl64 functions. #2299, #2309 (2.1.3)
* platform.h:
- New `OIIO_RETURNS_NONNULL` macro implements an attribute that marks
a function that returns a pointer as guaranteeing that it's never
NULL. #2150 (2.1.0/2.0.5)
* SHA1.h:
- Upgraded this embedded code from version 1.8 (2008) to the newest
release, 2.1 (2012). This fixes some Windows warnings. #2342 (2.1.4)
* simd.h:
- Added vec4 * matrix44 multiplication. #2165 (2.1.0/2.0.6)
- Guard against shenanigans when Xlib.h having been included and
`#define`ing True and False. #2272 (2.0.9/2.1.3)
* strutil.h:
- Added `excise_string_after_head()`. #2173 (2.1.0/2.0.6)
- Fixed incorrect return type of `stof()`. #2254 (2.1.2)
- Added `remove_trailing_whitespace()` and `trim_whitespace()`. #2298
(2.1.3)
- `Strutil::wordwrap()` now lets you specify the separation characters
more flexibly (rather than being hard-coded to spaces as separators).
#2116 (2.1.0/2.0.4)
- `Strutil::parse_while()`. #2139 (2.1.0/2.0.5)
- Added a variety of `join()` that allows you to set the number of items
joined, truncating or padding with default values as needed. #2408
(2.1.8)
- Fix `join` to produce a joined string of float-like values with
locale-independent formatting. #2408 (2.1.8)
- Fix `vsnprintf` to be locale independent. #2410 (2.1.8)
- New `lstrip()` and `rstrip()` are just like the existing `strip()`,
but operate only on the beginning/left side or ending/right side of
the string, respectively. #2409 (2.1.8)
* string_view.h:
- `string_view` now adds an optional `pos` parameter to the `find_first_of`
/ `find_last_of` family of methods. #2114 (2.1.0/2.0.4)
* sysutil.h:
- Added `stacktrace()` and `setup_crash_stacktrace()`. (Only functional
if OIIO is built with Boost >= 1.65, because it relies on the Boost
stacktrace library). #2229 (2.0.8/2.1.1)
* unittest.h:
- Add `OIIO_CHECK_IMAGEBUF_STATUS()` test macro. #2394 (2.1.8)
* unordered_map_concurrent.h:
- Performance improvement by avoiding redundant hashing of keys, and
improving the speed and properties of the hash function. #2313, #2316
(2.1.3)
* ustring.h:
- Bug fix in `ustring::compare(string_view)`, in cases where the
string_view was longer than the ustring, but had the same character
sequence up to the length of the ustring. #2283 (2.0.10/2.1.3)
* Wide use of declaring methods `noexcept` when we want to promise that
they won't throw exceptions. #2156, #2243 (2.1.0, 2.1.2)
* Changed all (we think) internal string formatting that expects printf
formatting notation to use the errorf/sprintf style calls, in anticipation
of the error/format (no trailing -f) calls to eventually follow the
std::format/python formatting notation. #2393 (2.1.8)
Notable documentation changes:
* The whole documentation system has been overhauled. The main docs have
been converted from LaTeX to Sphinx (using Doxygen and Breathe) for
beautiful HTML as well as PDF docs and automatic hosting on
https://openimageio.readthedocs.io #2247,2250,2253,2255,2268,2265,2270
* Copyright notices have been changed for clarity and conformance with
SPDX conventions. #2264
* New GitHub issue templates, making separate issue types for bug reports,
feature requests, build problems, and questions. #2271,#2346
Release 2.0.13 (1 Dec 2019) -- compared to 2.0.12
--------------------------------------------------
* Bug fix in deep image compare (`IBA::compare()` or `oiiotool --compare`)
would fail to notice differences in deep images where the corresponding
pixels had differing numbers of samples. #2381 (2.1.8/2.0.13)
* DPX: Fix bugs related to int32 math that would lead to incorrect behavior
in very high-resolution files. #2396 (2.1.3/2.0.13)
* When converting images to texture (via maketx or IBA::make_texture),
correctly handle color space conversions for greyscale images. #2400
(2.1.8/2.0.13)
* Build: suppress warnings with libraw for certain gcc versions.
* Build: Fix compiler warnings in ustring.h when `_LIBCPP_VERSION` is not
defined. #2415 (2.1.8.1/2.0.13)
* filesystem.h: New `fseek()` and `ftell()` that always use 64 bit offsets
to be safe for very large files. #2399 (2.1.8/2.0.13)
* `Strutil::parse_string()` - fix bugs that would fail for escaped quotes
within the string. #2386 (2.1.8/2.0.13)
* `Strutil::join()` added a variety that allows you to set the number of
items joined, truncating or padding with default values as needed. #2408
(2.1.8/2.0.13)
* New `Strutil::lstrip()` and `rstrip()` are just like the existing `strip()`,
but operate only on the beginning/left side or ending/right side of
the string, respectively. #2409 (2.1.8/2.0.13)
Release 2.0.12 (1 Nov, 2019) -- compared to 2.0.11
--------------------------------------------------
* Fix compiler warnings on some platform. #2375
* Work around bug in OpenEXR, where dwaa/dwab compression can crash when
used on 1-channel tiled images with a tile size < 16. This can crop up for
MIP-maps (high levels where rez < 16), so we detect this case and switch
automatically to "zip" compression. #2378
Release 2.0.11 (1 Oct, 2019) -- compared to 2.0.10
-------------------------------------------------
* Fixes to build against LibRaw master. #2306
* Fix DPX reading performance regression. #2333
* Guard against buggy pybind11 versions. #2347
* Fixes for safe Cuda compilation of `invert<>` in fmath.h. #2197
Release 2.0.10 (1 Aug, 2019) -- compared to 2.0.9
-------------------------------------------------
* ColorConfig improvements: (a) new getColorSpaceFamilyByName(); (b) new
methods to return the list of all color spaces, looks, displays, or views
for a display; (c) all of ColorConfig now exposed to Python. #2248
* `IBA::ociodisplay()` and `oiiotool --ociodisplay`: empty display or view
names imply using the default display or view. #2273
* Bug fix in `ustring::compare(string_view)`, in cases where the string_view
was longer than the ustring, but had the same character sequence up to
the length of the ustring. #2283
* `oiiotool --stats`: Fixed bug where `-iconfig` hints were not being
applied to the file as it was opened to compute the stats. #2288
* Bug fix: `IBA::computePixelStats()` was not properly controlling the
number of threads with the `nthreads` parameter. #2289
* Bug fix when reading TIFF bugs: In cases where the reader needed to close
and re-open the file silently (it could happen for certain scanline
traversal patterns), the re-open was not properly honorig any previous
"rawcolor" hints from the original open. #2285
* Nuke txWriter updates that expose additional make_texture controls. #2290
* Build system: Improvements for finding certain new Boost versions. #2293
* Build system: Improvements finding OpenEXR installation.
* Fix bugs when reading TIFF "cmyk" files. #2292.
* DPX: support for reading and writing 1-channel (luma, etc.) DPX images.
#2294
* `IBA::fixNonFinite()`: fixed impicit float/double casts to half. #2301
* Build fixes for MinGW. #2304
Release 2.0.9 (4 Jul, 2019) -- compared to 2.0.8
------------------------------------------------
* RAW: Clarification about color spaces: The open-with-config hint
"raw:ColorSpace" is more careful about color primaries versus transfer
curve. Asking for "sRGB" (which is the default) gives you true sRGB --
both color primaries and transfer. Asking for "linear" gives you linear
transfer with sRGB/Rec709 primaries. The default is true sRGB, because it
will behave just like JPEG. #2260 (2.1.2)
* Improved oiiotool support of files with multiple subimages: Several
commands honored `-a` but did not respect individual `allsubimages=`
modifiers (--ch, --sattrib, --attrib, --caption, --clear-keywords,
--iscolorspace, --orientation, --clamp, -fixnan); Several commands always
worked on all subimages, but now properly respect `-a` and `allsubimages=`
(--origin, --fullpixels, --croptofull, --trim); Several commands were
totally unaware of subimages, but now are so and respect `-a` and
`allsubimages=` (--crop, --fullsize, --zover, --fill, --resize,
--resample). #2202 #2219, #2242
* Fix broken ability to specify compression of multipart exr files. #2252
* Fix Strutil::stof() return type error and other windows warnings. #2254
* IBA::colortmatrixtransform() and `oiiotool --ccmatrix` allow you to
perform a matrix-based color space transformation. #2168
* Guard simd.h against shenanigans when Xlib.h having been included and
`#define`ing True and False. #2272
* RAW: Clarification about color spaces: The open-with-config hint
"raw:ColorSpace" is more careful about color primaries versus transfer
curve. Asking for "sRGB" (which is the default) gives you true sRGB --
both color primaries and transfer. Asking for "linear" gives you linear
transfer with sRGB/Rec709 primaries. The default is true sRGB, because it
will behave just like JPEG. #2260
* Fix inability for python to set timecode attributes (specifically, it was
trouble setting ImageSpec attributes that were unnsigned int arrays).
#2279
Release 2.0.8 (3 May, 2019) -- compared to 2.0.7
------------------------------------------------
* Fix Windows broken read of JPEG & PNG in some circumstances. #2231
* Some minor fixes to JPEG & PNG reading and file error robustness. #2187
* Fix crash reading certain old nconvert-written TIFF files. #2207
* Internals: The `OIIO_DISPATCH_COMMON_TYPES2/3` macros used by many
ImageBufAlgo functions have been expanded to handle a few more cases
"natively" without conversion to/from float. This may make a few cases
of odd data type combinations have higher precision. #2203
* ImageBufAlgo::resize() fixes precision issues for 'double' images. #2211
* Testing: A new unit test has been backported from master, which tries to
perform a series of read/write tests on every file format. In partcular,
this tests certain error conditions, like files not existing, or the
directory not being writable, etc. #2181
* Crashes in the command line utilities now attempt to print a stack trace
to aid in debugging (but only if OIIO is built with Boost >= 1.65, because
it relies on the Boost stacktrace library). #2229
* Dev goodies: fmath.h's powwroundup/pow2rounddown have been renamed
ceil2/floor2 to reflect future C++ standard. The old names still work, so
it's a fully back compatible change. #2199
Release 2.0.7 (1 Apr, 2019) -- compared to 2.0.6
------------------------------------------------
* DPX: fix potential crash when file open fails. #2186
* EXR: Suppress empty string for subimage name (fixes a problem when reading
files written by V-Ray). #2190
* Disable JPEG-2000 support for the (rare) combination of an older OpenJPEG
1.x and EMBEDPLUGINS=0 mode, which was buggy. The solution if you really
need EMBEDPLUGINS and JPEG-2000 support is to please use OpenJPEG >= 2.0.
#2183.
* New build flag `USE_WEBP=0` can be set to 0 to force disabled support of
WebP even when the webp package is found. #2200
* Bug fix: `ImageInput::create(name)` and `ImageOutput::create(name)` worked
if `name` was a filename (such as `foo.exr`), or the extension (such as
`exr`), but previously did not work if it was the name of the format
(such as `openexr`), despite having been documented as working in that
case. #2185
Release 2.0.6 (1 Mar, 2019) -- compared to 2.0.5
------------------------------------------------
* PNG: more careful catching of errors and corrupt png files. #2167
* PSD: read now properly extracts layer/subimage name and data window offset
coordinates. #2170
* ImageBuf: Fix bug in propagating unassociated alpha behavior request. #2172
* `oiiotool -o:all=1` fix crash when outputting 0x0 subimages. #2171
* Developer goodies: simd.h ops for vec4 * mat44 multiplication. #2165
* Developer goodies: `Strutil::excise_string_after_head()` #2173
* Fix crashes on Windows from certain regex replacement happening as part
of MakeTexture (internally avoid MSVS implementation of std::regex). #2173
Release 2.0.5 (1 Feb, 2019) -- compared to 2.0.4
------------------------------------------------
* `resize()`, `fit()`, and `resample()` are no longer restricted to
source and destination images having the same numer of channels. #2125
* Python error reporting for `ImageOutput` and `ImageBuf.set_pixels` involving
transferring pixel arrays have changed from throwing exceptions to reporting
errors through the usual OIIO error return codes and queries. #2127
* Protection against certain divide-by-zero errors when using very blurry
latlong environment map lookups. #2121
* New shell environment variable `OPENIMAGEIO_OPTIONS` can now be used to
set global `OIIO::attribute()` settings upon startup (comma separated
name=value syntax). #2128
* ImageInput open-with-config new attribute `"missingcolor"` can supply
a value for missing tiles or scanlines in a file in lieu of treating it
as an error (for example, how OpenEXR allows missing tiles, or when reading
an incompletely-written image file). A new global `OIIO::attribute()`
setting (same name) also accomplishes the same thing for all files read.
Note that this is only advisory, and not all file times are able to do
this (OpenEXR is the main one of interest, so that works). #2129
* New filter name `"nuke-lanczos6"` matches the "lanczos6" filter from Nuke.
In reality, it's identical to our "lanczos3", but the name alias is
supposed to make it more clear which one to use to match Nuke, which uses
a different nomenclature (our "3" is radius, their "6" is full width).
#2136
* `maketx -u` is smarter about which textures to avoid re-making because
they are repeats of earlier commands. #2140
* Detect/error if builder is trying to use a pybind11 that's too old. #2144
* OpenEXR: avoid some OpenEXR/libIlmImf internal errors with DWA compression
by switching to zip for single channel images with certain small tile
sizes. #2147
* On MacOS 10.14 Mojave, fix warnings during `iv` compile about OpenGL
being deprecated in future releases. #2151
* `iv` info window now sorts the metadata. #2159
* At build time, the Python version used can be controlled by setting the
environment variable `$OIIO_PYTHON_VERSION`, which if set will initialize
the default value of the CMake variable `PYTHON_VERSION`. #2161 (2.0.5)
* On non-Windows systems, the build now generates a PkgConfig file, installed
at `CMAKE_INSTALL_PREFIX/lib/pkgconfig/OpenImageIO.pc`. #2158 (2.0.5)
Release 2.0.4 (Jan 5, 2019) -- compared to 2.0.3
------------------------------------------------
* Fix potential threadpool deadlock issue that could happen if you were
(among possibly other things?) simultaneously calling make_texture from
multiple application threads. #2132
* ImageInput read_image/scanline/tile fixed subtle bugs for certain
combination of strides and channel subset reads. #2108
* TIFF: Fix problems with JPEG compression in some cases. #2117
* TIFF: Fixed error where reading just a subset of channels, if that subset
did not include the alpha channel but the image was "unassociated alpha",
the attempt to automatically associate (i.e. "premultiply" the alpha) upon
read would get bogus values because the alpha channel was not actually
read. Now in this case it will not do the premultiplication. So if you are
purposely reading RGB only from an RGBA file that is specifically
"unassociated alpha", beware that you will not get the automatic
premultiplication. #2122
* Python: define `__version__` for the module. #2096
* IBA::channel_append() previously always forced its result to be float, if
it wasn't previously initialized. Now it uses the uaual type-merging
logic, making the result the "widest" type of the inputs. #2095
* ImageSpec::find_attribute now will retrieve "datawindow" and "displaywindow"
(type int[4] for images int[6] for volumes) giving the OpenEXR-like bounds
even though there is no such named metadata for OIIO (the results will
assembled from x, y, width, height, etc.). #2110
* ImageCache/TextureSystem: more specific error message when tile reads
appear to be due to the file having changed or been overwritten on disk
since it was first opened. #2115
* oiiotool: New `-evaloff` and `-evalon` lets you disable and enable
the expression substitution for regions of arguments (for example, if
you have an input image filename that contains `{}` brace characters that
you want interpreted literally, not evaluated as an expression). #2100
* oiiotool `--dumpdata` has more intelligible output for uint8 images. #2124
* maketx: the `-u` (update mode) is slightly less conservative now,
no longer forcing a rebuild of the texture just because the file uses
a different relative directory path than last time. #2109
* WebP: fix bug that gave totally incorrect image read for webp images that
had a smaller width than height. #2120
* Developer goodies: string_view now adds an optional `pos` parameter to the
`find_first_of`/`find_last_of` family of methods. #2114
* Dev goodies: Strutil::wordwrap() now lets you specify the separation
characters more flexibly (rather than being hard-coded to spaces as
separators). #2116
Release 2.0 (Dec 1, 2018) -- compared to 1.8.x
----------------------------------------------
New minimum dependencies:
* On Windows compiling with MSVS, the new minimum version is MSVS 2015.
Major new features and improvements:
* ImageInput and ImageOutput static create() and open() methods now return
`unique_ptr` rather than raw pointers. #1934, #1945 (1.9.3).
* ImageInput improvements to thread safety and concurrency, including some
new API calls (see "Public API changes" section below).
* ImageBufAlgo overhaul (both C++ and Python): Add IBA functions that
return image results directly rather than passing ImageBuf references
as parameters for output (the old kind of calls still exist, too, and
have their uses). Also in C++, change all IBA functions that took raw
pointers to per-channel colors into `span<>` for safety. #1961 (1.9.4)
* For some readers and writers, an "IOProxy" can be passed that customizes
the I/O methods. An important use of this is to write an image "file"
to memory or to read an image "file" from a memory, rather than disk.
Currently, OpenEXR supports this for both reading and writing, and PNG
supports it for writing. You specify a pointer to the proxy via the
configuration option "oiio:ioproxy". #1931 (1.9.3)
* New Image Format support:
* OpenVDB file read (as volume images or accessing via texture3d()).
#2010,2018 (1.9.4)
* "null" images -- null reader just returns black (or constant colored)
pixels, null writer just returns. This can be used for benchmarking
(to eliminate all actual file I/O time), "dry run" where you want to
test without creating output files. #1778 (1.9.0), #2042 (1.9.4)
* TIFF I/O of multiple scanlines or tiles at once (or whole images, as is
typical use case for oiiotool and maketx) is sped up by a large factor
on modern multicore systems. We've seen 10x or more faster oiiotool
performance for uint8 and uint16 TIFF files using "zip" (deflate)
compression, on modern 12-16 core machines. #1853 (1.9.2)
* Major refactor of Exif metadata handling, including much more complete
metadata support for RAW formats and support of camera "maker notes"
for Canon cameras. #1774 (1.9.0)
* New `maketx` option `--bumpslopes` specifically for converting bump maps,
saves additional channels containing slope distribution moments that can
be used in shaders for "bump to roughness" calculations. #1810,#1913,2005
(1.9.2), #2044 (1.9.4)
* An official FindOpenImageIO.cmake that we invite you to use in other
cmake-based projects that needs to find OIIO. #2027 (1.9.4)
Public API changes:
* **Python binding overhaul**
The Python bindings have been reimplemented with
[`pybind11`](https://github.com/pybind/pybind11), no longer with Boost.Python.
#1801 (1.9.1)
In the process (partly due to what's easy or hard in pybind11, but partly
just because it caused us to revisit the python APIs), there are some minor
API changes, some of which are breaking! To wit:
* All of the functions that are passed or return blocks of pixels
(such as `ImageInput.read_image()`) now use Numpy `ndarray` objects
indexed as `[y][x][channel]` (no longer using old-style Python
`array.array` and flattened to 1D).
* Specilized enum type `ImageInput.OpenMode` has been replaced by string
parameters, so for example, old `ImageInput.open(filename, ImageInput.Create)`
is now `ImageInput.open (filename, "Create")`
* Any function that previously took a parameter of type `TypeDesc`
or `TypeDesc.BASETYPE` now will accept a string that signifies the
type. For example, `ImageBuf.set_write_format("float")` is now a
synonym for `ImageBuf.set_write_format(oiio.TypeDesc(oiio.FLOAT))`.
* For several color conversion functions, parameter names were changed
from "from" to "fromspace" and "to" to "tospace" to avoid a clash with
the Python reserved word `from`. #2084
* **ImageInput API changes for thread safety and statelessness** #1927 (1.9.2)
* `seek_subimage()` no longer takes an `ImageSpec&`, to avoid the obligatory
copy. (If the copy is desired, just call `spec()` to get it afterwards.)
* All of the `read_*()` methods now have varieties that take arguments
specifying the subimage and mip level. The `read_native_*()` methods
supplied by ImageInput subclass implementations now ONLY come in the
variety that takes a subimage and miplevel.
* All of the `read_*()` calls that take subimage/miplevel explicitly are
guaranteed to be stateless and thread-safe against each other (it's not
necessary to call `seek_subimage` first, nor to have to lock a mutex to
ensure that another thread doesn't change the subimage before you get a
chance to call read). For back-compatibility, there are still versions
that don't take subimage/miplevel, require a prior call to seek_subimge,
and are thus not considered thread-safe.
* New methods `spec(subimage,miplevel)` and `spec_dimensions(s,m)`
let you retrieve a copy of the ImageSpec for a given subimage and
MIP level (thread-safe, and without needing a prior `seek_subimage`)
call. Note that to be stateless and thread-safe, these return a COPY
of the spec, rather than the reference returned by the stateful
`spec()` call that has no arguments and requires a prior `seek_subimage`.
However, `spec_dimensions()` does not copy the channel names or the
arbitrary metadata, and is thus very inexpensive if the only thing
you need from the spec copy is the image dimensions and channel
formats.
* **ImageInput and ImageOutput create/open changes**
* The static `create()` and `open()` methods have been changed so that
instead of returning an `ImageInput *` (or `ImageOutput *`) and
requiring the caller to correctly manage that resource and eventually
destroy it, now they return a `unique_ptr` that automatically deletes
when it leaves scope. In the process we also clean up some edge cases
on Windows where it was possible for ImageInput/ImageOutput to have
been allocated in one DLL's heap but freed in a different DLL's heap,
which could cause subtle heap corruption problems. #1934,#1945 (1.9.3).
* **ImageBuf**
* New method `set_origin()` changes the pixel data window origin.
#1949 (1.9.4)
* Assignment (`operator=`) is now enabled for ImageBuf, both the copying
and moving variety. Also, an explicit copy() method has been added
that returns a full copy of the ImageBuf. #1952 (1.9.4)
* write() method has had its arguments changed and now takes an optional
TypeDesc that lets you specify a requested data type when writing the
output file, rather than requiring a previous and separate call to
set_write_format(). The old call signature of write() still exists,
but it will be considered deprecated in the future. #1953 (1.9.4)
* **ImageBufAlgo**
* In C++, functions that take raw pointers for per-channel constant
values or results are deprecated, in favor of new versions that
heavily rely on `span<>` to safely pass array references and their
lengths. #1961 (1.9.4)
* In both C++ and Python, every IBA function that takes a parameter
giving an ImageBuf destination reference for results have an additional
variant that directly returns an ImageBuf result. This makes much
cleaner, more readable code, in cases where it's not necessary to
write partial results into an existing IB. #1961 (1.9.4)
* In C++, many IBA functions that came in multiple versions for whether
certain parameters could be an image, a per-channel constant, or a
single constant, have been replaced by a single version that takes
a new parameter-passing helper class, `Image_or_Const` that will match
against any of those choices. (No changes are necessary for calling
programs, but it makes the header and documentation a lot simpler.)
#1961 (1.9.4)
* IBA compare(), computePixelStats(), and histogram() now directly
return their result structures, intead of requiring the passing of
a destination reference. #1961 (1.9.4)
* New IBA::fit() resizes and image to just fit in the given size, but
preserve its aspect ratio (padding with black as necessary). It's just
like what `oiiotool --fit` has always done, but now you can call it
directly from C++ or Python. #1993 (1.9.4)
* New `contrast_remap()` allows flexible linear or sigmoidal contrast
remapping. #2043 (1.9.4)
* `ImageBufAlgo::colorconvert` and various `ocio` transformations have
changed the default value of their `unpremult` parameter from `false`
to `true`, reflecting the fact that we believe this is almost always
the more correct choice. Also, if their input image is clearly marked
as having unasociated alpha already, they will not bracket the color
conversion with the requested unpremult/premult. #1864 (1.9.2)
* Updated the OpenCV interoperability with new functions to_OpenCV (make
an ImageBuf out of a cv::Mat) and from_OpenCV (fill in a cv::Mat with
the contents of an ImageBuf). Deprecated the old from_IplImage and
to_IplImage, which are very OpenCV-1.x-centric. (2.0.2)
* **ImageCache/TextureSystem:**
* ImageCache and TextureSystem now have `close(filename)` and
`close_all()` methods, which for one file or all files will close the
files and release any open file handles (also unlocking write access
to those files on Windows), but without invalidating anything it knows
about the ImageSpec or any pixel tiles already read from the files, as
would happen with a call to the much more drastic `invalidate()` or
`invalidate_all()`. #1950 (1.9.4)
* `TextureSystem::create()` has an additional optional argument that
allows the caller to pass an existing app-owned custom ImageCache.
#2019 (1.9.4)
* New `TextureSystem::imagecache()` method returns a blind, non-owning
pointer to the underlying ImageCache of that TS. #2019 (1.9.4)
* ImageCache: extended add_tile() with an optional `copy` parameter
(which defaults to `true`), which when set to `false` will make a tile
that references an app buffer without allocating, copying, and owning
the memory. In short, this makes it possible to reference existing
memory holding an image array, as if it were a texture. #2012 (1.9.4)
* `ImageCache::add_file()` extended with an optional `replace` parameter
(default: false), that if true, will replace the tile and invalidate
the old one. #2021 (1.9.4)
* **Changes to string formatting**: #2076 (2.0.1)
* New `Strutil::sprintf()` and `ustring::sprintf()` functions are for
printf-style formatted errors and warnings. You are encouraged to
change your existing `format()` calls to `sprintf()`, since the
original `format` may in a later version (2.1?) switch to Python-style
formatting commands, but `sprintf` will continue to reliably use
C printf style notation.
* In ImageInput, ImageOutput, ImageBuf, and ErrorHandler, new `errorf()`
and `warningf()` methods similarly provide printf-style formatted
errors and warnings. The old `error()/warning()` calls will someday
(maybe 2.1?) switch to Python-style formatting commands, but
`errorf` will continue to reliably use C printf style notation.
* ColorConfig changes: ColorConfig methods now return shared pointers to
`ColorProcessor` rather than raw pointers. It is therefore no longer
required to make an explicit delete call. Created ColorProcessor objects
are now internally cached, so asking for the same color transformation
multiple times is no longer expensive. The ColorProcessor interface is
now in `color.h` and can be directly used to perform transformations on
individual colors (previously it was just an opaque pointer and could
only be used to pass into certain IBA functions). The color space names
"rgb" and "default" are now understood to be synonyms for the default
"linear" color space. #1788 (1.9.0)
* Remove long-deprecated API calls:
* ImageBuf::get_pixels/get_pixel_channels varieties deprecated since 1.6.
* ImageBuf::set_deep_value_uint, deprecated since 1.7.
* ImageBuf::deep_alloc, deprecated since 1.7.
* ImageBufAlgo::colorconvert variety deprecated since 1.7.
* ImageCache::clear, deprecated since 1.7.
* ImageCache::add_tile variety deprecated since 1.6.
* ROI new methods: contains() #1874, #1878 (1.9.2)
* `ImageBufAlgo::pixeladdr()` now takes an additional optional parameter,
the channel number. #1880 (1.9.2)
* Global OIIO attribute "log_times" (which defaults to 0 but can be overridden
by setting the `OPENIMAGEIO_LOG_TIMES` environment variable), when nonzero,
instruments ImageBufAlgo functions to record the number of times they are
called and how much time they take to execute. A report of these times
can be retrieved as a string as the "timing_report" attribute, or it will
be printed to stdout automatically if the value of log_times is 2 or more
at the time that the application exits. #1885 (1.9.2)
* Moved the definition of `ROI` from `imagebuf.h` to `imageio.h` and make
most of the methods `constexpr`. #1906 (1.9.2)
* Rename/move of `array_view` to `span`. Deprecated `array_view` and moved
array_view.h contents to span.h. You should change `array_view<T>`
to `span<T>` and `array_view<const T>` to `cspan<T>`. #1956,2062 (1.9.4)
* ustring: removed `operator int()` that allowed simple int casting such as:
```
ustring u, v;
if (u || !v) { ... }
```
This was error-prone, neither std::string nor std::string_view had the
equivalent, so we are removing it. The preferred idiom is:
```
if (!u.empty() || v.empty()) { ... }
```
Performance improvements:
* ImageBufAlgo::computePixelStats is now multithreaded and should improve by
a large factor when running on a machine with many cores. This is
particularly noticable for maketx. #1852 (1.9.2)
* Color conversions are sped up by 50% for 4 channel float images, about
30% for other combinations of channels or data formats. #1868 (1.9.2)
* ImageBuf::get_pixels() sped up by around 3x for the common case of the
image being fully in memory (the slower path is now only used for
ImageCache-based images). #1872 (1.9.2)
* ImageBufAlgo::copy() and crop() sped up for in-memory buffers, by about
35-45% when copying between buffers of the same type, 2-4x when copying
between buffers of different data types. #1877 (1.9.2)
* ImageBufAlgo::over() when both buffers are in-memory, float, 4-channels,
sped up by about 2x. #1879 (1.9.2).
* ImageBufAlgo::fill() of a constant color sped up by 1.5-2.5x (depending
on the data type involved). #1886 (1.9.2)
Fixes and feature enhancements:
* oiiotool
* `--help` prints important usage tips that explain command parsing,
syntax of optional modifiers, and the path to PDF docs. #1811 (1.9.2)
* `--colormap` has new maps "inferno", "magma", "plasma", "viridis",
which are perceptually uniform, monotonically increasing luminance,
look good converted to greyscale, and usable by people with color
blindness. #1820 (1.9.2)
* oiiotool no longer enables autotile by default. #1856 (1.9.2)
* `--colorconvert`, `--tocolorspace`, and all of the `--ocio` commands
now take an optional modifier `:unpremult=1` which causes the color
conversion to be internally bracketed by unpremult/premult steps (if
the image has alpha and is not already marked as having unassociated
alpha). You should therefore prefer `--colorconvert:unpremult=1 from to`
rather than the more complex `--unpremult --colorconvert from to -premult`.
#1864 (1.9.2)
* `--autocc` will also cause unpremult/premult to bracket any color
transformations it does automatically for read and write (if the image
has alpha and does not appear to already be unassociated). #1864 (1.9.2)
* `--help` prints the name of the OCIO color config file. #1869 (1.9.2)
* Frame sequence wildcard improvements: fix handling of negative frame
numbers and ranges, also the `--frames` command line option is not
enough to trigger a loop over those frame numbers, even if no other
arguments appear to have wildcard structure. #1894 (1.8.10/1.9.2)
* `--info -v` now prints metadata in sorted order, making it easier to
spot the existence of particular metadata. #1982 (1.9.4)
* `--no-autopremult` fixed, it wasn't working properly for cases that
were read directly rather than backed by ImageCache. #1984 (1.9.4)
* New `--contrast` allows for contrast remapping (linear or sigmoidal).
#2043 (1.9.4)
* Improved logic for propagating the pixel data format through
multiple operations, especially for files with multiple subimages.
#1769 (1.9.0/1.8.6)
* Outputs are now written to temporary files, then atomically moved
to the specified filename at the end. This makes it safe for oiiotool
to "overwrite" a file (i.e. `oiiotool in.tif ... -o out.tif`) without
problematic situations where the file is truncated or overwritten
before the reading is complete. #1797 (1.8.7/1.9.1)
* Fixed problem with reading `half` files where very small (denormalized)
half values could get squashed to float 0.0 instead of having their
values preserved, if certain old versions of libopenjpeg were being
used (because they set a CPU flag strangely upon library load and then
never changed it back, this is a libopenjpeg bug that has since been
fixed). #2048 (2.0)
* `-d chan=type` logic fixed for certain cases of specifying the data
types of individual channels. #2061 (2.0beta2)
* Expression evaluation: metadata names can now be enclosed in single
or double quotes if they don't follow "C" identifier naming conventions.
For example, `{TOP.'foo/bar'}` retrieves metadata called "foo/bar"
rather than trying to retrieve "foo" and divide by bar. #2068 (2.0beta2)
* Expression evaluation: When retrieving metadata, timecode data will be
expressed properly as a string ("00:00:00:00"). #2068 (2.0beta2)
* ImageBufAlgo:
* `color_map()` supports new maps "inferno", "magma", "plasma",
"viridis". #1820 (1.9.2)
* Across many functions, improve channel logic when combining an image
with alpha with another image without alpha. #1827 (1.9.2)
* `mad()` now takes an `img*color+img` variety. (Previously it
supported `img*img+img` and `img*color+color`.) #1866 (1.9.2)
* New `fit()` is like resize but fits inside a specified window size,
while preserving the aspect ratio of the image appearance. #1993.
* New `contrast_remap()` allows flexible linear or sigmoidal contrast
remapping. #2043 (1.9.4)
* `channel_append()` is no longer limited to requiring the two input
images to have the same pixel data type. #2022 (1.9.4)
* `isConstantColor()`, `isConstantChannel()`, and `isMonochrome()` have
added an optional `threshold` parameter that allows you to compute
whether the image is constant or monochrome within a non-zero
tolerance (the default is still 0.0, meaning checking for an exact
match). #2049 (2.0.0)
* `IBA::ociodisplay()` has better behavior when its "fromspace" parameter
is left blank -- instead of assuming "linear" (as a space name), it
assumes it's whatever space in your OCIO color config has the "linear"
role. #2083 (1.8.17/2.0.1)
* ImageBuf:
* Bug fixed in IB::copy() of rare types. #1829 (1.9.2)
* write() automatically tells the ImageCache to 'invalidate' the file
being written, so cached images will not retain the prior version of
the files. #1916 (1.9.2)
* Bug fix to ImageBuf::contains_roi() method -- it erroneously always
returned `true`. #1997 (1.8.14/1.9.4)
* ImageCache/TextureSystem/maketx:
* Improved stats on how long we wait for ImageInput mutexes.
#1779 (1.9.0/1.8.6)
* Improved performance of IC/TS tile and file caches under heavy
contention from many threads. #1780 (1.9.0)
* Increased the default `max_tile_channels` limit from 5 to 6.
#1803 (1.9.1)
* maketx: improved image hashing to avoid some (extremely rare) possible
hash collisions. #1819 (1.9.2)
* IC/TS performance improvements by changing the underlying hash table
implementation. #1823,1824,1825,1826,1830 (1.9.2)
* texture()/texture3d(): when requesting a nonexistent "subimage",
return the fill color, like we do when requesting nonexistent channels
(rather than nondeterministically simply not filling in the result).
#1917 (1.9.2)
* Relying on some changes to the ImageInput API, there is now much less
thread locking to protect the underlying ImageInputs, and this should
improve texture and image cache performance when many threads need
to read tiles from the same file. #1927 (1.9.2)
* `get_image_info()`/`get_texture_info()` is now more flexible about
retrieving arrays vs aggregates, in cases where the total number of
elements is correct. #1968 (1.9.4)
* Fix uninitialized read within the texture system (only affected
statistics, never gave wrong texture results). #2000 (1.9.4)
* texture3d() transforms lookup points from world into local space
if the file has a "worldtolocal" metadata giving a 4x4 matrix. #2009
(1.9.4)
* Fix minor texture filtering bug where widely disparate "sblur" and
"tblur" values could in some circumstances lead to incorrect texture
filter estimation. #2052 (2.0.0)
* `ImageCache::invalidate(filename)` did not properly invalidate the
"fingerprint" is used to detect duplicate files. #2081 (1.8.17/2.0.1)
* iv:
* Fix (especially on OSX) for various ways it has been broken since the
shift to Qt5. #1946 (1.8.12, 1.9.4)
* New optin `--no-autopremult` works like oiiotool, causes images with
unassociated alpha to not be automatically premultiplied by alpha
as they are read in. #1984 (1.9.4)
* All string->numeric parsing and numeric->string formatting is now
locale-independent and always uses '.' as decimal marker. #1796 (1.9.0)
* Python Imagebuf.get_pixels and set_pixels bugs fixed, in the varieties
that take an ROI to describe the region. #1802 (1.9.2)
* Python: Implement missing `ImageOutput.open()` call variety for declaring
multiple subimages. #2074 (2.0.1)
* More robust parsing of XMP metadata for unknown metadata names.
#1816 (1.9.2/1.8.7)
* Fix ImageSpec constructor from an ROI, display/"full" window did not get
the right default origin. #1997 (1.8.14/1.9.4)
* ImageSpec::erase_attribute() fix bug where it got case-sensitivity of the
search backwards when built using std::regex rather than boost::regex.
#2003 (1.8.14/1.9.4)
* DPX:
* Better catching of write errors, including filling the disk while in
the process of writing a DPX file. #2072 (2.0.1)
* Field3d:
* Prevent crashes when open fails. #1848 (1.9.2/1.8.8)
* Fix potential mutex deadlock. #1972 (1.9.4)
* GIF:
* Fix crash when reading GIF with comment extension but no comment data.
#2001 (1.8.14/1.9.4)
* JPEG:
* When writing, be robust to accidentally setting the "density" metadata
to values larger than JPEG's 16 bit integer field will accommodate.
#2002 (1.8.14/1.9.4)
* Better detection and reporting of error conditions while reading
corrupt JPEG files. #2073 (2.0.1)
* OpenEXR:
* Gracefully detect and reject files with subsampled channels,
which is a rarely-to-never-used OpenEXR feature that we don't support
properly. #1849 (1.9.2/1.8.8)
* Improved handling of UTF-8 filenames on Windows. #1941 (1.9.3, 1.8.12,
1.7.19)
* PNG:
* Fix redundant png_write_end call. #1910 (1.9.2)
* PSD:
* Fix parse issue of layer mask data. #1777 (1.9.2)
* RAW:
* Add "raw:HighlightMode" configuration hint to control libraw's
handling of highlight mode processing. #1851
* Important bug fix when dealing with rotated (and vertical) images,
which were not being re-oriented properly and could get strangely
scrambled. #1854 (1.9.2/1.8.9)
* Major rewrite of the way makernotes and camera-specific metadata are
handled, resulting in much more (and more accurate) reporting of
camera metadata. #1985 (1.9.4)
* The "oiio:ColorSpace" metadata is now set correctly when reading
raw DSLR images. And we deprecate the old "raw:ColorSpace" metadata,
which is useless. #2016 (1.9.4)
* Add "raw:aber" configuration hint to control libraw's adjustments for
chromatic aberration. This data is of type "float[2]", the first value
is the scale factor for red, the second for blue, and both should be
very close to 1.0. #2030 (1.9.4)
* TIFF:
* Improve performance of TIFF scanline output. #1833 (1.9.2)
* Bug fix: read_tile() and read_tiles() input of un-premultiplied tiles
botched the "shape" of the tile data array. #1907 (1.9.2/1.8.10)
* Improvement in speed of reading headers (by removing redundant call
to TIFFSetDirectory). #1922 (1.9.2)
* When config option "oiio:UnassociatedAlpha" is nonzero (or not set
-- which is the default), therefore enabling automatic premultiplication
by alpha for any unassociated alpha files, it will set the metadata
"tiff:UnassociatedAlpha" to indicate that the original file was
unassociated. #1984 (1.9.4)
* Bug fixes for TIFF reads of images with unassociated alpha -- there
were some edge cases where they pixels failed to automatically
premultiply upon read. #2032 (1.9.4)
* zfile: more careful gzopen on Windows that could crash when given bogus
filename. #1839,2070 (1.9.2/1.8.8/2.0.1)
* Windows fix: Safer thread pool destruction on. #2038 (1.9.4)
Build/test system improvements and platform ports:
* Fixes for Windows build. #1793, #1794 (1.9.0/1.8.6), #2025 (1.9.4)
* Fix build bug where if the makefile wrapper got `CODECOV=0`, it would
force a "Debug" build (required for code coverage tests) even though code
coverage is instructed to be off. (It would be fine if you didn't specify
`CODECOV` at all.) #1792 (1.9.0/1.8.6)
* Build: Fix broken build when Freetype was not found or disabled. #1800
(1.8.6/1.9.1)
* Build: Boost.Python is no longer a dependency, but `pybind11` is. If
not found on the system, it will be automatically downloaded. #1801, #2031
(1.9.1)
* Time for a multi-core build of OIIO is reduced by 40% by refactoring some
extra big modules into more bite-sized pieces. #1806 (1.9.2)
* testtex:
* Make the "thread workout" cases all honor `--handle`. #1778 (1.9.0)
* Only prints detailed stats if `-v` is used, and new option
`--invalidate` will invalidate the cache when starting each
threadtimes trial. #1828 (1.9.2)
* New `--anisoratio` lets you choose anisotropic shape for thread
working tests, and make thread_workout samples twice as big to be more
typical by interpolating mip levels. #1840 (1.9.2)
* TextureSystem stats are printed as well as ImageCache. #1840 (1.9.2)
* iv no longer requires GLEW, using QOpenGLFunctions instead. #1840 (1.9.2)
* DICOM: Fix dcmtk build errors on some platforms. Also, the minimum dcmtk
version we support is 3.6.1. #1843 (1.9.2/1.8.8)
* Build fixes for Hurd OS. #1850 (1.9.2/1.8.8)
* Clean up leak sanitizer errors. #1855 (1.9.2)
* On Unix/Linux, add explicit DL library dependency to libOpenImageIO.so
itself instead of only to the binaries and test utilities.
#1860 (1.9.2/1.8.8)
* The build now bundles a sample OCIO config in testsuite/common so that we
can do OCIO-based unit tests. #1870 (1.9.2)
* Properly find newer openjpeg 2.3. #1871 (1.9.2)
* Fix testsuite to be Python 2/3 agnostic. #1891 (1.9.2)
* Removed `USE_PYTHON3` build flag, which didn't do anything. #1891 (1.9.2)
* The `PYTHON_VERSION` build variable is now better at selecting among
several installed versions of Python, and all the tests should work fine
with Python 3.x now. #2015 (1.9.4)
* Remove some lingering support for MSVS < 2013 (which we haven't advertised
as working anyway). #1887 (1.9.2)
* Windows/MSVC build fix: use the `/bigobj` option on some large modules
that need it. #1900, #1902 (1.8.10/1.9.2)
* Add up-to-date Nuke versions to FindNuke.cmake. #1920 (1.8.11, 1.9.2)
* Allow building against ffmpeg 4.0. #1926,#1936 (1.8.11, 1.9.2)
* Disable SSE for 32 bit Windows -- problematic build issues.
#1933 (1.9.3, 1.8.12, 1.7.19)
* Fixes to the `EMBEDPLUGINS=0` build case, which had at some point stopped
working properly. #1942 (1.9.3)
* Improvements in finding the location of OpenJPEG with Macports.
#1948 (1.8.12, 1.9.4)
* Improvement finding libraw properly on Windows. #1959 (1.9.4)
* Fix warnings to allow clean gcc8 builds. #1974 (1.9.4)
* Make sure we build properly for C++17. (1.9.4)
* Check properly for minimal FFMpeg version (2.6). #1981 (1.9.4)
* New build option GLIBCXX_USE_CXX11_ABI, when set to 0 will force the old
gcc string ABI (even gcc 7+ where the new ABI is the default), and if set
to 1 will force the new gcc string ABI (on gcc 5-6, where old ABI is the
default). If not set at all, it will respect the default choice for that
compiler. #1980 (1.9.4)
* TravisCI builds now use an abbreviated test matrix for most ordinary
pushes of working branches, but the full test matrix for PRs or pushes
to "master" or "RB" branches. #1983 (1.9.4)
* Support compilation by clang 7.0. #1995 (1.9.4)
* Support for building against OpenEXR 2.3. #2007 (1.9.4)
* Use OpenEXR pkgconfig if available. #2008 (1.9.4)
* Allow builds outside the source tree to pass testsuite. Defaults to
finding test image directories such as oiio-images, openexr-images, and
libtiffpic in the usual ".." from the main OIIO source directory, but now
it can be overridden with the CMake variable `OIIO_TESTSUITE_IMAGEDIR`.
#2026 (1.9.4)
* Remove stale python examples from `src/python`. They were untested,
undocumented, and probably no longer worked against the current APIs.
#2036 (1.9.4)
* Fixes for Windows when making Unicode builds, and fix Plugin::dlopen
on Windows to properly support UTF-8 filenames. #1454 (2.0.1)
* Support added for OpenCV 4.0. (2.0.1)
Developer goodies / internals:
* **Formatting with clang-format**: All submissions are expected to be
formatted using our standard clang-format rules. Please run
`make clang-format` prior to submitting code. The TravisCI tests include
one entry just to check that the formatting conforms, and will fail if it
doesn't, printing the diffs that would bring it to proper formatting.
(Note: for small changes, if you don't have clang-format locally, it's ok
to submit, then use the diffs from the failures to fix it by hand and
resubmit and update.) #2059,2064,2065,2067,2069.
* argparse.h:
* Add pre- and post-option help printing callbacks. #1811 (1.9.2)
* Changed to PIMPL to hide implementation from the public headers.
Also modernized internals, no raw new/delete. #1858 (1.9.2)
* array_view.h:
* Added begin(), end(), cbegin(), cend() methods, and new
constructors from pointer pairs and from std::array. (1.9.0/1.8.6)
* Deprecated, moved contents to span.h. You should change `array_view<T>`
to `span<T>` and `array_view<const T>` to `cspan<T>`. #1956 (1.9.4)
* color.h: add guards to make this header safe for Cuda compilation.
#1905 (1.9.2/1.8.10)
* filesystem.h:
* IOProxy classes that can abstract file operations for custom I/O
substitutions. #1931 (1.9.3)
* Proper UTF-8 filenames for unique_path() and temp_directory(), and
general UTF-8 cleanup/simplification. #1940 (1.9.3, 1.8.12, 1.7.19)
* Remove extraneous calls to exists() that were doubling the number
of stat syscalls. #2385 (2.1.8)
* fmath.h:
* Now defines preprocessor symbol `OIIO_FMATH_H` so other files can
easily detect if it has been included. (1.9.0/1.8.6)
* Modify to allow Cuda compilation/use of this header. #1888,#1896
(1.9.2/1.8.10)
* Improve numeric approximation of fast_atan() and fast_atan2().
#1943 (1.9.3)
* fast_cbrt() is a fast approximate cube root (maximum error 8e-14,
about 3 times faster than pow computes cube roots). #1955 (1.9.4)
* function_view.h: Overhauled fixed with an alternate implementation
borrowed from LLVM. (1.9.4)
* hash.h: add guards to make this header safe for Cuda compilation.
#1905 (1.9.2/1.8.10)
* imageio.h: `convert_image()` and `parallel_convert_image` have been
simplified to remove optional `alpha_channel` and `z_channel` parameters
that were never actually used. The old versions are still present but
are deprecated. #2088 (2.0.1)
* parallel.h:
* `parallel_options` passed to many functions. #1807 (1.9.2)
* More careful avoidance of threads not recursively using the thread
pool (which could lead to deadlocks). #1807 (1.9.2)
* Internals refactor of task_set #1883 (1.9.2).
* Make the thread pool better behaved in times if pool congestion -- if
there are already way too many items in the task queue, the caller may
do the work itself rather than add to the end and have to wait too
long to get results. #1884 (1.9.2)
* paramlist.h:
* ParamValue class has added get_int_indexed() and get_float_indexed()
methods. #1773 (1.9.0/1.8.6)
* ParamValue restructured to allow additional common data types to store
internally rather than requre an allocation. #1812 (1.9.2)
* New ParamList convenience methods: remove(), constains(),
add_or_replace(). #1813 (1.9.2)
* platform.h:
* New OIIO_FALLTHROUGH and OIIO_NODISCARD macros, and renamed
OIIO_UNUSED_OK to OIIO_MAYBE_UNUSED (to match C++17 naming). #2041
* simd.h:
* Fixed build break when AVX512VL is enabled. #1781 (1.9.0/1.8.6)
* Minor fixes especially for avx512. #1846 (1.9.2/1.8.8) #1873,#1893
(1.9.2)
* span.h:
* Used to be array_view. Now it's `span<>` and `span_strided`. Also,
`cspan<T>` is a handy alias for `span<const T>`. #1956 (1.9.4)
* Added begin(), end(), cbegin(), cend() methods, and new
constructors from pointer pairs and from std::array. (1.9.0/1.8.6)
* Added `==` and `!=` to span and span_strided. #2037 (1.9.4)
* strutil.h:
* All string->numeric parsing and numeric->string formatting is now
locale-independent and always uses '.' as decimal marker. #1796 (1.9.0)
* New `Strutil::stof()`, `stoi()`, `stoui()`, `stod()` functions for
easy parsing of strings to numbers. Also tests `Strutil::string_is_int()`
and `string_is_float()`. #1796 (1.9.0)
* New `to_string<>` utility template. #1814 (1.9.2)
* Fix to strtof, strtod for non-C locales. #1918 (1.8.11, 1.9.2)
* New `iless()` is case-insensitive locale-independent string_view
ordering comparison. Also added StringIEqual, StringLess, StringILess
functors. (1.9.4)
* `join()` is now a template that can act on any iterable container of
objects that allow stream output. #2033 (1.9.4)
* New `splits()`/`splitsv()` that direction returns a vector of
std::string or string_view, respectively. #2033 (1.9.4)
* A second version of `extract_from_list_string` that directly returns
a std::vector (instead of being passed as a param). #2033 (1.9.4)
* `parse_string` now accepts single quotes as well as double quotes
to enclose a quoted string. #2066 (2.0beta2)
* Fix Strutil::vsnprintf detection of encoding errors on Windows. #2082
(1.8.17/2.0.1)
* `parse_string()` - fix bugs that would fail for escaped quotes within
the string. #2386 (2.1.8)
* thread.h:
* Reimplementation of `spin_rw_mutex` has much better performance when
many threads are accessing at once, especially if most of them are
reader threads. #1787 (1.9.0)
* task_set: add wait_for_task() method that waits for just one task in
the set to finish (versus wait() that waits for all). #1847 (1.9.2)
* Fix rare crash in thread pool when lowering the number of threads.
#2013 (1.9.4/1.8.15)
* unittest.h:
* Made references to Strutil fully qualified in OIIO namespace, so that
`unittest.h` can be more easily used outside of the OIIO codebase.
#1791 (1.9.0)
* `OIIO_CHECK_EQUAL_APPROX` - fix namespace ambiguity. #1998 (1.9.4)
* `OIIO_CHECK_EQUAL` now can compare two `std::vector`s. #2033 (1.9.4)
* Make unit test errors respect whether stdout is a terminal when
deciding whether to print in color. #2045
* Extensive use of C++11 `final` and `override` decorators of virtual
methods in our internals, especially ImageInput and ImageOutput.
#1904 (1.9.2)
Notable documentation changes:
* A new THIRD-PARTY.md file reproduces the full open source licenses
of all code that we distribute with OIIO, incorporate, or derive code from.
They are have very similar license terms to the main OIIO license
("New BSD") -- MIT, Mozilla, Apache 2.0, or public domain. OIIO does not
use any GPL or other "viral" licenesed code that would change license
terms of any code that didn't come directly from those packages.
* The CHANGES.md file was getting truly enormous, so we have split the
release notes from the 0.x and 1.x releases into separate files found
in src/doc. So CHANGES.md only documents 2.0 and beyond.
--------------
For older release notes, see:
* [CHANGES-0.x](https://github.com/OpenImageIO/oiio/blob/master/src/doc/CHANGES-0.x.md).
* [CHANGES-1.x](https://github.com/OpenImageIO/oiio/blob/master/src/doc/CHANGES-1.x.md).
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