IPU support

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This topic contains 2 replies, has 2 voices, and was last updated by  Anthony 2 years, 6 months ago.

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  • #43751

    Anthony
    Member

    The GCW-Zero is a similar piece of hardware which has nice support for the IPU.
    How soon until the CI20 has IPU support, specifically to re-scaling images to 1080P or other resolutions?
    I want to port some emulators to this board but the 1920×1080 resolution restriction is a bit of a killer and not having hardware to rescale the lower resolutions is a bit painful (though not a show stopper).

    #48166

    ZubairLK
    Member

    Hi,

    Apologies for the delay.

    We are focusing on upgrading the default kernel to 3.18 [1]

    Unfortunately, IPU support in a better fashion is a bit at the end of the infinite to-do list.

    That being said, effort by the community is greatly appreciated and welcome.

    There is some support in kernel 3.0.8 which can be used to guide any forward porting effort https://github.com/MIPS/CI20_linux/tree/ci20-v3.0.8/drivers/video/jz4780-ipu

    Regards,
    ZubairLK

    [1] https://github.com/MIPS/CI20_linux

    #48199

    Anthony
    Member

    Okay does SDL 2.0 support hardware screen scaling?

    ie. Create an SDL Texture and then update it continuously?

    sdlTexture = SDL_CreateTexture(
       sdlRenderer,
       SDL_PIXELFORMAT_ARGB8888,
       SDL_TEXTUREACCESS_STREAMING,
       640,480);
    ...
    SDL_UpdateTexture(
       sdlTexture,
       NULL,
       myPixels,
       640 * sizeof (Pixel))

    ;

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