Hello,
there is a report that Stretch Blit is hardware accelerated on the SH7722.
http://directfb.org/index.php?path=Main%2FNews&entry=2007-09-21-0.dok
When I recently checked out DirectFB from git and ran df_dok on the
SH7723 (Renesas SH7723 0.9), I noted that Stretch Blit is no longer
reported as being hardware accelerated.
$ df_dok --stretch_blit
[...]
Stretch Blit 14.459 secs ( 2.295 MPixels/sec) [17.5%]
Blit is still hardware accelerated
$ df_dok --blit
[...]
Blit 3.494 secs (* 1.875 MPixel/sec) [2.2%]
Yet the driver's code itself has implemented StretchBlit in
DirectFB/gfxdrivers/sh772x/sh7722_blt.c:sh7722SetState/sh7722DoBlit()
Are there special requirements to use Stretch Blitting?
Mit freundlichen Grüßen / Best Regards
Markus Pietrek
Software engineer
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