How about dropping the idea that "resource_copy_region must be just a memcpy" and have the driver instruct the hardware 2D blitter to write 1s in the alpha channel if supported by hw or have u_blitter do this in the shader?
nv30/nv40 and apparently nv50 can do this in the 2D blitter, and all Radeons seem to use the 3D engine, which obviously can do it in the shader. We may also want to allow actual conversion between arbitrary formats, since again u_blitter can do it trivially, and so can most/all hardware 2D engines. ------------------------------------------------------------------------------ This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
