On Monday, January 23rd, 2023 at 21:25, Sebastian Wick <sebastian.wick@xxxxxxxxxx> wrote: > Why is the TF defined for GL formats and both the primaries and TF for > Vulkan formats? The only exception here should be sRGB formats. Where > did you get the information from? This is what upstream dfdutils does [1]. Can you explain why you think it should be undefined instead of linear? I was wondering what to do for DRM formats regarding these. I think it would be worthwhile to do like Vulkan: set TF = linear, primaries = BT.709, pre-multiplied alpha = yes. These are the things KMS assume when there is no override (ie, when there is no KMS property saying otherwise). [1]: https://github.com/KhronosGroup/dfdutils/blob/5cd41cbdf63e80b00c085c6906a1152709e4c0f2/createdfd.c#L47
