On Fri, Apr 17, 2015 at 09:30:02AM +0000, Xie, William wrote: > Hello > > Does overlay support alpha? Depends on the hardware once more. Also we don't have a proper API for it at this time. You may get lucky if you tell it to use a pixel format with alpha. But there's no guarantee what kind of blend equation you will get. Also we don't really have an API for the plane Z order either. Some drivers have a property for that, but I don't think it's really well defined. > > William > > -----Original Message----- > From: Ville Syrjälä [mailto:ville.syrjala@xxxxxxxxxxxxxxx] > Sent: Wednesday, April 15, 2015 10:34 PM > To: Xie, William > Cc: DRI Development > Subject: Re: Help on drmModeSetPlane > > On Wed, Apr 15, 2015 at 02:24:14PM +0000, Xie, William wrote: > > Oh, I tried it on BDW. > > So we need to use other way to scale the video to full screen? > > Yes, unfortunately. > > > > > William > > > > > > -----Original Message----- > > From: Ville Syrjälä [mailto:ville.syrjala@xxxxxxxxxxxxxxx] > > Sent: Wednesday, April 15, 2015 7:23 PM > > To: Xie, William > > Cc: DRI Development > > Subject: Re: Help on drmModeSetPlane > > > > On Wed, Apr 15, 2015 at 08:49:39AM +0000, Xie, William wrote: > > > To make it more specific, > > > > > > For example: > > > 1: video frame size is 1280x720, > > > 2: screen resolution is 3200x1800, > > > > > > How can I set crtc and src parameters? > > > > > > 1: crtc (0, 0, 3200, 1800) src (0, 0, 3200<<16, 1800<<16) > > > 2: crtc (0, 0, 3200, 1800) src (0, 0, 1280<<16, 720<<16) > > > > > > Which one is correct? > > > > 2 is correct. > > > > What hardware are you trying this on? Do note that on HSW/BDW/VLV/CHV the hardware lost the plane scaling ability. It's coming back on SKL. > > > > > > > > William > > > > > > From: Xie, William > > > Sent: Wednesday, April 15, 2015 3:55 PM > > > To: DRI Development; DRI Development > > > Subject: Help on drmModeSetPlane > > > > > > Question please, could someone share the meaning of the parameters for drmModeSetPlane in libdrm? > > > > > > int drmModeSetPlane(int fd, uint32_t plane_id, uint32_t crtc_id, > > > uint32_t fb_id, uint32_t flags, > > > int32_t crtc_x, int32_t crtc_y, > > > uint32_t crtc_w, uint32_t crtc_h, > > > uint32_t src_x, uint32_t src_y, > > > uint32_t src_w, uint32_t src_h) > > > > > > > > > My problem is, whatever value I set, the video is not full screen > > > mode, Anything I missed? > > > > > > Thanks > > > William > > > > > > > > > > > > > > > > > _______________________________________________ > > > dri-devel mailing list > > > dri-devel@xxxxxxxxxxxxxxxxxxxxx > > > http://lists.freedesktop.org/mailman/listinfo/dri-devel > > > > > > -- > > Ville Syrjälä > > Intel OTC > > -- > Ville Syrjälä > Intel OTC -- Ville Syrjälä Intel OTC _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
