On 6/26/06, Sarah Reichelt <[EMAIL PROTECTED]> wrote:
A while ago, someone (Richard?) was discussing the limits on an image size to be displayed in Rev. I have a rather crude function for deciding this, so would now like to replace it with a more exact calculation but I can't find this info in the docs or in the list archives. Does anyone know where I can find it, or does anyone still have the post? TIA, Sarah
Hi Sarah, Here's a post from Scott Raney on bugzilla (bug 1859) where he talks about the image size limits on the Mac: This is a fundamental limitation in the MacOS image architecture: the rowBytes field of the PixMap image structure has a maximum value of 4000 (hex) which on a 32-bit display works out to 4096 pixels. (see http://developer.apple.com/documentation/Carbon/Reference/QuickDraw_Ref/qdref_m ain/data_type_41.html). This can be worked around but only by writing a lot of code to handle all the manipulation using local instead of OS routines, so for now I'm downgrading to an enhancement and reassigning to Tuv (since I no longer do Mac development). So 4096 X 4096 seems to be the current image size limit. But I'm sure I read somewhere that this was going to be "fixed" in an upcoming version of Rev, where this limitation (I believe it's a limitation of QuickDraw) will be removed. -- Regards, Howard Bornstein ----------------------- www.designeq.com _______________________________________________ use-revolution mailing list [email protected] Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
