Support for R8 and RG88

[shutaozhenzhen]

Is your feature request related to a problem? Please describe.
view RGB by yuview only support RGB or RGBA, do not support R8 and RG88

Describe the solution you'd like
support R8 and RG88

Describe alternatives you've considered
support R8 and RG88

[ChristianFeldmann]

Hi
You are referring to these formats as described here, right? I did not find any information on RG88 in there but did you mean RG16?

I have personally never encountered these formats. Could you provide some sample files? That would really help with the impleentation.

[shutaozhenzhen]

Hi You are referring to these formats as described here, right? I did not find any information on RG88 in there but did you mean RG16?

I have personally never encountered these formats. Could you provide some sample files? That would really help with the impleentation.

I use this name from drm fourcc code.

https://github.com/torvalds/linux/blob/7c626ce4bae1ac14f60076d00eafe71af30450ba/include/uapi/drm/drm_fourcc.h#L140C1-L142C1

https://github.com/torvalds/linux/blob/7c626ce4bae1ac14f60076d00eafe71af30450ba/include/uapi/drm/drm_fourcc.h#L152C1-L155C1

Just very simple formats.

R8 is just YUV400 colored with red.
RG88 is packed RG format, 8bytes R followed with 8byte G

I'm working with opengl es 3.2, and want to view saved textures. sometimes texture can be in GL_R8 or GL_RG8 format.

[ChristianFeldmann]

There are truly some strange formats out there.