On Fri, 9 Mar 2007 00:53:18 +0200, Daniel Stone wrote: > > On 3/8/07, Eero Tamminen <[EMAIL PROTECTED]> wrote: > > >[1] There's a bug in Cairo bugzilla about slowness on 16-bit display > > > when using Render though... ... > b) Cairo is dumb. It could degrade to a 16-bit surface if the target > is only 16, thus saving a great deal of memory and calculations.
I'd still like to see a test case for the people running into slowness here. Cairo should already be creating 16-bit surfaces when possible, (for example in _cairo_xlib_surface_create_similar when given a 16-bit surface to start with). But cairo wasn't always clever about this, no. Now, ifthe application is actually handing cairo an ARGB32 image surface, then that's a totally separate issue, (and the application should just be fixed to not do that). -Carl
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