Enhancing java2d Image classes & pipelines to support HDR (10b) or 16bits RGBA

[SWinxy]

I support this! HDR support would be nice, but if there are issues with
color spaces, that to me is a higher priority.

What do you mean to fix in the macros and graphics pipelines?

On Thu, Jan 26, 2023 at 5:11 AM Laurent Bourgès <bourges.laurent at gmail.com>
wrote:

> Hi,
>
> I would like enhancing Java Image classes (awt / java2D) to support
> natively new image types with their use cases:
> - BGRA (inverse RGBA) with both byte, integer & PREMUL variants (4x8bits),
> as supported by skia, metal, vulkan apis
> - 10 or 16 bits per RGBA component to support HDR or 64bits images like
> R10G10B10A2 or R16G16B16A16, as supported by skia, metal, vulkan apis but
> also by PNG & TIFF file formats
>
> It represents a lot of work:
> - CSR to define new BufferedImageType, Image API changes to deal with
> short / long values (rgba 48 or 64bits)
> - fix native software loops (macros)
> - fix DirectX, OpenGL, XRender, Metal pipelines for accelerated Surface
>
> Ideally such image handling requires to handle properly gamma correction &
> colorspaces (linear RGBA or perceptual sRGB, P3...) but it is maybe another
> topic !
>
> Comments are welcome & potential use cases too,
>
> Thanks,
> Laurent
>
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