textnitro.blogg.se - Command for correct indentation for checkstyle in eclipse mac

COMMAND FOR CORRECT INDENTATION FOR CHECKSTYLE IN ECLIPSE MAC PATCH
COMMAND FOR CORRECT INDENTATION FOR CHECKSTYLE IN ECLIPSE MAC FULL
COMMAND FOR CORRECT INDENTATION FOR CHECKSTYLE IN ECLIPSE MAC CODE
COMMAND FOR CORRECT INDENTATION FOR CHECKSTYLE IN ECLIPSE MAC WINDOWS

Josm-large-jpeg-scaled-loading-through-jni-turbojpeg-to-workaround-oom-experimental.patch ( 77.1 KB) - added by cmuelle8 4 years ago.

COMMAND FOR CORRECT INDENTATION FOR CHECKSTYLE IN ECLIPSE MAC WINDOWS

It has not been tested, whether libjpeg-turbo is properly loaded under Windows or MacOS, e.g.

COMMAND FOR CORRECT INDENTATION FOR CHECKSTYLE IN ECLIPSE MAC PATCH

This patch had limited testing on a single dev machine and a single OS. So for now, this check is not dependent on the scaling option used for ImageDisplay. if that option is changed during runtime and an image is loaded already employing more than half of the available memory, it may seem strange to do an expensive reload of the whole image, just because this scaling option changed. However, a dynamic check depending on the state bilin* options are in, might need more work, i.e.

COMMAND FOR CORRECT INDENTATION FOR CHECKSTYLE IN ECLIPSE MAC CODE

In general, because of the deliberate checking for possible OOM conditions, JOSM will be from now on less likely to hit such exceptions if large images are loaded (this applies to all image formats, not just JPEG, but for JPEGs the code will make a second attempt in loading the image, instead of giving up).Ĭonsidering that bilinear scaling may be turned off in prefs, the constraint of not using more than half the available memory may be loosened. Not taking more than half of the memory available is especially necessary for the bilinear scaling to work as it duplicates the image buffer (worst case) in best fit mode.

otherwise an instance of TJDecoder is used to load a scaled version (that will also not employ more than half of the available JVM heap space memory).

if the image will presumably fit into half of the avail memory to the JVM loading is defered to the default toolkit as usual.

It reads width and height of an image without loading it and then checks The proposed patch makes an effort to determine the presumably available memory before loading an image.

serious bug related to OOM conditions in openjdk (?).

in a terminated JVM and a segfaulting Xorg (libpthread related).

if JOSM is started with -Xmx4G (or a variant) to supply more heap space.

Trying to load this file without the proposed patch results in

(Vienna)_-_Google_Art_Project_-_edited.jpg.

Test data (a jpeg image with 30.000x21.952 pixels) may be found under

once this is added to the jni interface of turbojpeg it might be feasible to load the visible subregions (resulting from zoom or drag operations) dynamically from a large jpeg file as needed.

like TJDecompressor_decompress_partial that employs jpeg_crop_scanline(.) and jpeg_skip_scanlines(.)

while partial jpeg decoding was added in turbojpeg 1.5 it has not been promoted to the callable jni functions yet.

not true currently: this variant merely enables to write to another offset than (0,0) in the dest buffer.

in principle this should be possible using this decompress variant instead of the convenience function.

this may be overcome by reloading subregions of the source image from file as needed.

as the loaded image will be a scaled version, zooming in 1:1 will not be possible.

the library needs to be found and readable by the JVM to load (general JNI problem).

debian/ubuntu precompiled versions do not have java enabled by default, see debian/rules.

libjpeg-turbo on the host system must have been compiled with the -with-java swith to.

Problems (caveats) with this approach are One solution is to employ the JNI bridge to turbojpeg system library. The imageio framework has canSetSourceRenderSize() to check if a plugin can handle a custom source render size, but this is currently (JDK7, JDK8, JDK9) not implemented for the JPEG decoder, see

JDK8 and JDK9 already use jpeg or turbojpeg system libraries in the background to do the heavy lifting, but there does not seem to be a proper way in those JDKs to delegate the scaling wish down to the JNI level. JPEG loading however may be done in a way that the native decoding library decodes and scales the image on the fly (before the pixels are being sent to a BufferedImage).

COMMAND FOR CORRECT INDENTATION FOR CHECKSTYLE IN ECLIPSE MAC FULL

This may cause issues when trying to load images with large dimensions, if the heap space cannot hold the buffer of a full decode of the image.