On Tue, Sep 19, 2017 at 7:39 AM, Lionel Landwerlin < lionel.g.landwer...@intel.com> wrote:
> On 16/09/17 00:06, Jason Ekstrand wrote: > > > > On Fri, Sep 15, 2017 at 7:11 AM, Lionel Landwerlin < > lionel.g.landwer...@intel.com> wrote: > >> This change introduce the concept of planes for image & views. It >> matches the planes available in new formats. >> >> We also refactor depth & stencil support through the usage of planes >> for the sake of uniformity. In the backend (genX_cmd_buffer.c) we have >> to take some care though with regard to auxilliary surfaces. >> Multiplanar color buffers can have multiple auxilliary surfaces but >> depth & stencil share the same HiZ one (only store in the depth >> plane). >> > > Not really. HiZ has nothing to do with stencil, it's just for depth > compression. I think, in principal, I like splitting things out into a > plane array better. I never did like the way we special-cased > depth+stencil. > > > Oh, maybe I dreamed that... > Isn't there a requirement to put the depth & stencil into the same buffer? > Or were we just doing that to same some space? > Nope. They can be disjoint (and are in i965). I've been tempted to add an extension to let people bind them to separate memory if they'd like. --Jason
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