i.MX Processors中的主题 Re: Android i.MX8mq: How to Using OpenGL with overlay frame 1 buffer /dev/graphics/fb1

Android i.MX8mq: How to Using OpenGL with overlay frame 1 buffer /dev/graphics/fb1

hongxingyu1982 — Thu, 24 Oct 2019 02:40:26 GMT

Hi, sir

Now I used the imx8mq evk board to test the dual display, one is hdmi(/dev/graphics/fb0), the other is mipi-to-hdmi(/dev/graphics/fb1). When I set the correct bootargs and dts files, both display can work, but with the same context when I run the demo. So If I would like to only control the /dev/graphics/fb1 using OpenGL, How can I set？

The Andriod version is :evk_8mq_eng 9 1.0.0-ga-rc3 20190114 dev-keys

Re: Android i.MX8mq: How to Using OpenGL with overlay frame 1 buffer /dev/graphics/fb1

hongxingyu1982 — Thu, 24 Oct 2019 09:16:49 GMT

Hi anyone

Is there anything update ?

Re: Android i.MX8mq: How to Using OpenGL with overlay frame 1 buffer /dev/graphics/fb1

diegoadrian — Fri, 25 Oct 2019 15:30:27 GMT

Hello,

Unfortunately, you are using an unofficial Android BSP from us. I suggest using the NXP Android BSPs.

Android OS for i.MX Applications Processors | NXP

However, only mirrored display is supported by our BSP. Having different content in both display is not supported.

I apologize for the inconvenience this could give you.

Best regards,

Diego.

Re: Android i.MX8mq: How to Using OpenGL with overlay frame 1 buffer /dev/graphics/fb1

hongxingyu1982 — Mon, 28 Oct 2019 09:42:01 GMT

Hi sir

I would like to use the blew parameter to control fb1

fd = open("/dev/graphics/fb1", O_RDWR);
EGLNativeWindowType window = (EGLNativeWindowType)fd;

But it build error as blew:

frameworks/native/opengl/tests/OPENGLESTestRGB/opengl_es_test_rgb.cpp:40:31: error: cast to 'ANativeWindow *' from smaller integer type 'int' [-Werror,-Wint-to-pointer-cast]
EGLNativeWindowType window = (EGLNativeWindowType)fd;

Does there anyone else know this issue, and fix it?

Re: Android i.MX8mq: How to Using OpenGL with overlay frame 1 buffer /dev/graphics/fb1

hongxingyu1982 — Tue, 29 Oct 2019 07:24:33 GMT

Hi everyone

Is there anyone else can fix this issue ?