JPNG (named using JPEG and PNG) is not an image format but a compression method. We use the file ending ".lcjpng" for that.
It takes features from both JPEG (setting JPEGquality to compress the imageData and from the PNG compression the alphaData/transparency). It saves the alphaData, optionally the maskData, and the JPEG-compressed imageData in one file. The JPNG-compressed image has here, using a JPEGquality of 80, around 25% of the PNG-compressed size. So this may be interesting for people who wish to compress (significantly in size) the PNG-images containing transparency in their stack/standalone and decompress only some images for "current" use. Compression/Decompression is very fast. See stack "JPNG" via the "Sample stacks" of the LC toolbar or (slower) here: http://livecodeshare.runrev.com/stack/841/JPNG This sample stack compresses to files or to (numbered) custom properties. Note: I don't use the JPNG data structure of js or objC, but you can easily convert it to that. _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
