LCD scaling type
flat view
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2003-01-10 19:42:42
Hi ! When setting a mode on an LCD display that is not exactly the native mode of that display, we can, on some chips, setup a scaler. However, most of the time, we have 2 difference choices for setting up this scaler: It can preserve or not preserve the aspect ratio. A typical example is the titnium powerbook's 1152x768 mode. If I set it to 1024x768, I can get either horizontal scaling (not preserving aspect ratio) or no scaling with black bars on left & right (preserving aspect ratio). While in most case you actually want to preserve the aspect ratio, it would still I beleive make sense to let the user choose it. Could we define one of the reserved fields in fb_var_screeninfo as beeing a "flags" field for such things ? There are a couple of other things that we may want to stuff into such a bitfield later, I'd suggest reserving one 32 bits field for such flags. Ben. -- Benjamin Herrenschmidt [off-list ref] ------------------------------------------------------- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com