Setting the local alpha blending

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Setting the local alpha blending

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valentinryzhenk
Contributor II

Hello,

I faced with a problem when setting the local alpha blending.

Use 2 framebuffer:

fb0 for my qt application (widget with a black background and green text information);

fb1 for outputting a video camera using gstreamer 1.0

How to programmatically configure framebuffer on 32 bit?

P.S. Use this article to configure the global alpha blending, but when mixed are black pixels around the green text.

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Valentin

one can check ipu examples on

ipu-examples release notes - v0.1 | NXP Community 

i.MX6: Alpha blending example code | NXP Community 

Best regards
igor
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4 Replies
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yyuan
Contributor III

hello

i also want to do this.   

i want to add qt to video,  qt is fb0 , video is fb1,but video blocks qt.

do you know how to solve it?

thank you 

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381 Views
valentinryzhenk
Contributor II

Hello, here's an example.

0 Kudos
381 Views
yyuan
Contributor III

thank you    Valentin Ryzhenko

i can`t  open the link ,  but  thank you very much.

thank you

0 Kudos
382 Views
igorpadykov
NXP TechSupport
NXP TechSupport

Hi Valentin

one can check ipu examples on

ipu-examples release notes - v0.1 | NXP Community 

i.MX6: Alpha blending example code | NXP Community 

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

View solution in original post