Adam Richter <[EMAIL PROTECTED]> writes: > Even if you do not want to do stretch, I believe that the X Render > extension would require first copying the YUV data to a drawable and > then doing a drawable->drawable block transfer operation to do the > YUV transformation. In comparison, XvPutImage is a single call > takes an XImage, which can be in shared memory, and would normally > be in YUV, and specifies the YUV->RGB conversion and stretch in a > single operation.
As other people pointed out, XRender does allow arbitrary 3x3 transformations of source images, but you are right that the XRender protocol would require putting the data in a drawable first. A shared memory pixmap would be a possibility, perhaps, though the shared memory extension should eventually be replaced with something based on the DRM memory manager. Soren _______________________________________________ xorg mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/xorg
