payload: {"action":"created","issue":{"url":"https://api.github.com/repos/libjpeg-turbo/libjpeg-turbo/issues/356","repository_url":"https://api.github.com/repos/libjpeg-turbo/libjpeg-turbo","labels_url":"https://api.github.com/repos/libjpeg-turbo/libjpeg-turbo/issues/356/labels{/name}","comments_url":"https://api.github.com/repos/libjpeg-turbo/libjpeg-turbo/issues/356/comments","events_url":"https://api.github.com/repos/libjpeg-turbo/libjpeg-turbo/issues/356/events","html_url":"https://github.com/libjpeg-turbo/libjpeg-turbo/pull/356","id":442293813,"node_id":"MDExOlB1bGxSZXF1ZXN0Mjc3NDM3NzE4","number":356,"title":"bugfix: add bias pattern for h1v2_fancy_upsample","user":{"login":"jonathanwright-ARM","id":31624044,"node_id":"MDQ6VXNlcjMxNjI0MDQ0","avatar_url":"https://avatars1.githubusercontent.com/u/31624044?v=4","gravatar_id":"","url":"https://api.github.com/users/jonathanwright-ARM","html_url":"https://github.com/jonathanwright-ARM","followers_url":"https://api.github.com/users/jonathanwright-ARM/followers","following_url":"https://api.github.com/users/jonathanwright-ARM/following{/other_user}","gists_url":"https://api.github.com/users/jonathanwright-ARM/gists{/gist_id}","starred_url":"https://api.github.com/users/jonathanwright-ARM/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jonathanwright-ARM/subscriptions","organizations_url":"https://api.github.com/users/jonathanwright-ARM/orgs","repos_url":"https://api.github.com/users/jonathanwright-ARM/repos","events_url":"https://api.github.com/users/jonathanwright-ARM/events{/privacy}","received_events_url":"https://api.github.com/users/jonathanwright-ARM/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":6,"created_at":"2019-05-09T15:21:50Z","updated_at":"2019-05-10T17:51:11Z","closed_at":null,"author_association":"NONE","pull_request":{"url":"https://api.github.com/repos/libjpeg-turbo/libjpeg-turbo/pulls/356","html_url":"https://github.com/libjpeg-turbo/libjpeg-turbo/pull/356","diff_url":"https://github.com/libjpeg-turbo/libjpeg-turbo/pull/356.diff","patch_url":"https://github.com/libjpeg-turbo/libjpeg-turbo/pull/356.patch"},"body":"Adds an ordered dither pattern for h1v2_fancy_upsample such that 0.5\r\nwill be rounded up or down at alternate pixel locations. Currently\r\n0.5 is always rounded down.\r\n\r\nThis ordered dither pattern is already used for h2v1_fancy_upsample\r\nand h2v2_fancy_upsample."},"comment":{"url":"https://api.github.com/repos/libjpeg-turbo/libjpeg-turbo/issues/comments/491375931","html_url":"https://github.com/libjpeg-turbo/libjpeg-turbo/pull/356#issuecomment-491375931","issue_url":"https://api.github.com/repos/libjpeg-turbo/libjpeg-turbo/issues/356","id":491375931,"node_id":"MDEyOklzc3VlQ29tbWVudDQ5MTM3NTkzMQ==","user":{"login":"jonathanwright-ARM","id":31624044,"node_id":"MDQ6VXNlcjMxNjI0MDQ0","avatar_url":"https://avatars1.githubusercontent.com/u/31624044?v=4","gravatar_id":"","url":"https://api.github.com/users/jonathanwright-ARM","html_url":"https://github.com/jonathanwright-ARM","followers_url":"https://api.github.com/users/jonathanwright-ARM/followers","following_url":"https://api.github.com/users/jonathanwright-ARM/following{/other_user}","gists_url":"https://api.github.com/users/jonathanwright-ARM/gists{/gist_id}","starred_url":"https://api.github.com/users/jonathanwright-ARM/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jonathanwright-ARM/subscriptions","organizations_url":"https://api.github.com/users/jonathanwright-ARM/orgs","repos_url":"https://api.github.com/users/jonathanwright-ARM/repos","events_url":"https://api.github.com/users/jonathanwright-ARM/events{/privacy}","received_events_url":"https://api.github.com/users/jonathanwright-ARM/received_events","type":"User","site_admin":false},"created_at":"2019-05-10T17:51:11Z","updated_at":"2019-05-10T17:51:11Z","author_association":"NONE","body":"Sure - I want it to be right too before pushing a SIMD implementation. From my viewpoint, the rounding was certainly wrong before - never rounding up 0.5 - and this patch fixes it such that 0.5 is rounded up at every other pixel location. That's not to say there could be something else wrong somewhere - though if there is, it's not obvious to me. Let me know how you want to proceed.\r\n\r\nIncidentally, would you be open to receiving a couple of patches adding unit tests for h1v2 fancy upsampling as well as the SIMD function stubs for all of the supported architectures?"}}
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