i.MX ProcessorsのトピックLocal Alpha Blending https://community.nxp.com/t5/i-MX-Processors/Local-Alpha-Blending/m-p/225843#M16019 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>Our setup&nbsp; is like data from android surface flinger is available "/dev/graphics/fb0"</P><P>We want to do overlay with CSI buffer which is written on "/dev/graphics/fb1"</P><P></P><P>We are able to get it working with global alpha and colour keying. But due to some limitation with our GUI we can not use global alpha.</P><P></P><P>But If I disable global alpha and enable the local alpha than data from /dev/graphics/fb1 is not display.</P><P></P><P>- Is it possible to do alpha blending using local alpha without colour keying?</P><P>- What is a significance of alpha_phy_addr0, alpha_phy_addr1 and alpha_in_pixel?</P><P></P><P></P><P>Thanks</P><P>Saurabh</P><P><BR /> </P></BODY></HTML> Fri, 26 Jul 2013 14:03:52 GMT saurabh206 2013-07-26T14:03:52Z Local Alpha Blending https://community.nxp.com/t5/i-MX-Processors/Local-Alpha-Blending/m-p/225843#M16019 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>Our setup&nbsp; is like data from android surface flinger is available "/dev/graphics/fb0"</P><P>We want to do overlay with CSI buffer which is written on "/dev/graphics/fb1"</P><P></P><P>We are able to get it working with global alpha and colour keying. But due to some limitation with our GUI we can not use global alpha.</P><P></P><P>But If I disable global alpha and enable the local alpha than data from /dev/graphics/fb1 is not display.</P><P></P><P>- Is it possible to do alpha blending using local alpha without colour keying?</P><P>- What is a significance of alpha_phy_addr0, alpha_phy_addr1 and alpha_in_pixel?</P><P></P><P></P><P>Thanks</P><P>Saurabh</P><P><BR /> </P></BODY></HTML> Fri, 26 Jul 2013 14:03:52 GMT https://community.nxp.com/t5/i-MX-Processors/Local-Alpha-Blending/m-p/225843#M16019 saurabh206 2013-07-26T14:03:52Z