It's possible that I misread the spec, because the format qualifier looked imprecise. Feel free to fix this.
Marek On Tue, Aug 6, 2019 at 8:10 PM Ilia Mirkin <imir...@alum.mit.edu> wrote: > Hi Pierre-Eric, > > I see you recently added EXT_shader_image_load_store - nice. It seems > like you're relying on the format-less read access feature to make it > happen: > > + extensions->EXT_shader_image_load_store &= > + screen->get_param(screen, PIPE_CAP_IMAGE_LOAD_FORMATTED); > > Can you elaborate why this is necessary? From a quick read of the > spec, it seems like the format is required, and maps to a format same > way that ARB_image_load_store does (well, *slightly* different, but in > the end, we get one of those same enum values out). The LOAD_FORMATTED > thing enables you to read from an image with PIPE_FORMAT_NONE (which > normally can only be written to). > > I don't see anything in the spec which requires it, but perhaps I > missed something. I'd be a bit surprised though, since this is rather > non-trivial on NVIDIA GPUs. > > Cheers, > > -ilia > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/mesa-dev
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