yahooarchive / pngjs-image Goto Github PK
View Code? Open in Web Editor NEWJavaScript-based PNG image encoder, decoder, and manipulator
Home Page: http://yahoo.github.io/pngjs-image
License: MIT License
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[load png from URL]
hi,
maybe I miss something out - but it looks like that loading a PNG from a http URL instead of local filesystem does not work ... any hints on that ?
this.log() undefined is not a function
I'm using blink-diff and i got this error. Why is it this.log??
/Users/thomas/Desktop/goldshelf/node_modules/blink-diff/node_modules/pngjs-image/index.js:24
this.log(err.message);
^
TypeError: undefined is not a function
at PNGImage.<anonymous> (/Users/thomas/Desktop/goldshelf/node_modules/blink-diff/node_modules/pngjs-image/index.js:24:14)
at emitOne (events.js:82:20)
at emit (events.js:166:7)
at emitOne (events.js:82:20)
at emit (events.js:166:7)
at Parser._parseSignature (/Users/thomas/Desktop/goldshelf/node_modules/blink-diff/node_modules/pngjs-image/node_modules/pngjs/lib/parser.js:87:18)
at ChunkStream._process (/Users/thomas/Desktop/goldshelf/node_modules/blink-diff/node_modules/pngjs-image/node_modules/pngjs/lib/chunkstream.js:186:23)
at ChunkStream.write (/Users/thomas/Desktop/goldshelf/node_modules/blink-diff/node_modules/pngjs-image/node_modules/pngjs/lib/chunkstream.js:74:10)
at PNG.write (/Users/thomas/Desktop/goldshelf/node_modules/blink-diff/node_modules/pngjs-image/node_modules/pngjs/lib/png.js:100:18)
at ReadStream.ondata (_stream_readable.js:524:20)
thomas@workstation:goldshelf$
pngjs version is out of date
The latest pngjs supports node >= v4;
https://github.com/lukeapage/pngjs/blob/b495e60323125cd3f2dcd64c56fa0182b9b49c65/package.json#L30
The version pngjs-image is using requires node v0.8:
https://github.com/lukeapage/pngjs/blob/82dd9a96c00eabb2b9051edb6d7b45fed944111d/package.json#L12
Please upgrade pngjs to a newer version so that it can be installed under the yarn package manager on new node.js engines, if possible.
(I ❤️ blink-diff yahoo/blink-diff#32)
Test ticket from Code Climate
Typed Array access
I would like to create a png file from a single Uint8Array rather than using the set methods.
Similarly, would be great to get the png data as a Uint8Array.
But creation is more important for me, I use webgl textures and framebuffers to decode pngs.
this._inflate.destroy is not a function
Has anyone run into this error before?
TypeError: this._inflate.destroy is not a function
at Parser._handleError (c:\Projects\Architecture\InnovationProjects\SignatureImageHelper\node_modules\pngjs-image\node_modules\pngjs\lib\parser.js:72:23)
at emitOne (events.js:82:20)
at emit (events.js:169:7)
at Parser._parseChunkEnd (c:\Projects\Architecture\InnovationProjects\SignatureImageHelper\node_modules\pngjs-image\node_modules\pngjs\lib\parser.js:146:14)
at ChunkStream._process (c:\Projects\Architecture\InnovationProjects\SignatureImageHelper\node_modules\pngjs-image\node_modules\pngjs\lib\chunkstream.js:186:23)
at ChunkStream.read (c:\Projects\Architecture\InnovationProjects\SignatureImageHelper\node_modules\pngjs-image\node_modules\pngjs\lib\chunkstream.js:51:10)
at Parser._handleChunkEnd (c:\Projects\Architecture\InnovationProjects\SignatureImageHelper\node_modules\pngjs-image\node_modules\pngjs\lib\parser.js:136:10)
at Parser._parseIEND (c:\Projects\Architecture\InnovationProjects\SignatureImageHelper\node_modules\pngjs-image\node_modules\pngjs\lib\parser.js:326:10)
at ChunkStream._process (c:\Projects\Architecture\InnovationProjects\SignatureImageHelper\node_modules\pngjs-image\node_modules\pngjs\lib\chunkstream.js:186:23)
at ChunkStream.read (c:\Projects\Architecture\InnovationProjects\SignatureImageHelper\node_modules\pngjs-image\node_modules\pngjs\lib\chunkstream.js:51:10)
Trying to open a png image.
consider using pngjs2
I see you are using pngjs for reading and writing png's. That project has been dead a couple of years and I've been working on a replacement - pngjs2, including the bugfixes, which is fully tested and supports multiple bit depths and interlace.
"RangeError: Maximum call stack size exceeded"
The version of pngjs being used is out of date and has a lot of bugs. The current version should be used instead. I tested running with the current version and nothing seemed to break so it should be pretty easy to change.
v0.11.4 is not backward compatible
blink-diff test/screenshots/1280x800/actual/1.png test/screenshots/1280x800/expected/1.png
Blink-Diff 1.0.10
Copyright (C) 2014 Yahoo! Inc.
TypeError: Object # has no method '_readImageFromFs'
at PNGImage.readImage (/Users/sureshkm/.nvm/v0.10.33/lib/node_modules/blink-diff/node_modules/pngjs-image/index.js:114:15)
at /Users/sureshkm/.nvm/v0.10.33/lib/node_modules/blink-diff/node_modules/promise/lib/node-extensions.js:25:10
at doResolve (/Users/sureshkm/.nvm/v0.10.33/lib/node_modules/blink-diff/node_modules/promise/lib/core.js:91:5)
at new Promise (/Users/sureshkm/.nvm/v0.10.33/lib/node_modules/blink-diff/node_modules/promise/lib/core.js:71:3)
at /Users/sureshkm/.nvm/v0.10.33/lib/node_modules/blink-diff/node_modules/promise/lib/node-extensions.js:17:12
at Object.BlinkDiff._loadImage (/Users/sureshkm/.nvm/v0.10.33/lib/node_modules/blink-diff/index.js:704:48)
at Object.promise.then.then._imageA (/Users/sureshkm/.nvm/v0.10.33/lib/node_modules/blink-diff/index.js:355:16)
at /Users/sureshkm/.nvm/v0.10.33/lib/node_modules/blink-diff/node_modules/promise/lib/es6-extensions.js:18:19
at flush (/Users/sureshkm/.nvm/v0.10.33/lib/node_modules/blink-diff/node_modules/promise/node_modules/asap/asap.js:27:13)
at process._tickCallback (node.js:419:13)
Should be a way to get base64 image
Should be a way to get image as base64.
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