<div dir="auto"><div><br><div class="gmail_extra"><br><div class="gmail_quote">On Dec 3, 2016 8:27 AM, "Lionel Landwerlin" <<a href="mailto:llandwerlin@gmail.com">llandwerlin@gmail.com</a>> wrote:<br type="attribution"><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">That's on Haswell.<br>
I'm not sure whether a 3d image with multiple layers makes sense, but<br>
if it does, it should probably return different depth/layer pitch<br>
values?</blockquote></div></div></div><div dir="auto"><br></div><div dir="auto">It does not. You can't have 3D arrays. Haswell should probably return 0 for both array pitch and depth pitch for 3D. We could return a sensible depth pitch for LOD0 but not for any later LOD. Also, in not sure what isl reports for array pitch for GEN4_3D surfaces. It's not normally a useful thing so I don't think we spent any effort trying to make it make sense. In any case, I don't think dividing by depth is the right thing to do.</div><div dir="auto"><br></div><div dir="auto"><div class="gmail_extra"><div class="gmail_quote"><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="elided-text">
On Sat, 2016-12-03 at 08:22 -0800, Jason Ekstrand wrote:<br>
> What hardware are you running on? Prior to sky lake, depth pitch<br>
> makes so sense for us. On sky lake and above it should be exactly<br>
> the same as array pitch. One thing we should do is not report array<br>
> pitch for 3D and maybe report a depth pitch of zero on broadwell and<br>
> earlier.<br>
><br>
> On Dec 3, 2016 7:51 AM, "Lionel Landwerlin" <<a href="mailto:llandwerlin@gmail.com">llandwerlin@gmail.com</a>><br>
> wrote:<br>
> With a 3d image of 2x2x3, vkGetImageSubresourceLayout currently<br>
> reports :<br>
><br>
> VkSubresourceLayout = { offset = 0,<br>
> size = 160,<br>
> rowPitch = 16,<br>
> arrayPitch = 96,<br>
> depthPitch = 96 }<br>
><br>
> depthPitch should be 32.<br>
><br>
> Signed-off-by: Lionel Landwerlin <<a href="mailto:lionel.g.landwerlin@intel.com">lionel.g.landwerlin@intel.com</a><wbr>><br>
> ---<br>
> src/intel/vulkan/anv_image.c | 3 ++-<br>
> 1 file changed, 2 insertions(+), 1 deletion(-)<br>
><br>
> diff --git a/src/intel/vulkan/anv_image.c<br>
> b/src/intel/vulkan/anv_image.c<br>
> index e60373a..9ef0760 100644<br>
> --- a/src/intel/vulkan/anv_image.c<br>
> +++ b/src/intel/vulkan/anv_image.c<br>
> @@ -376,7 +376,8 @@ anv_surface_get_subresource_<wbr>layout(struct<br>
> anv_image *image,<br>
><br>
> layout->offset = surface->offset;<br>
> layout->rowPitch = surface->isl.row_pitch;<br>
> - layout->depthPitch = isl_surf_get_array_pitch(&<wbr>surface->isl);<br>
> + layout->depthPitch =<br>
> + isl_surf_get_array_pitch(&<wbr>surface->isl) / image->extent.depth;<br>
> layout->arrayPitch = isl_surf_get_array_pitch(&<wbr>surface->isl);<br>
> layout->size = surface->isl.size;<br>
> }<br>
> --<br>
> 2.10.2<br>
><br>
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><br>
</div></blockquote></div><br></div></div></div>