On Tue, Feb 28, 2017 at 11:33 PM, Iago Toral <ito...@igalia.com> wrote:
> On Fri, 2017-02-24 at 07:25 -0800, Jason Ekstrand wrote: > > On Feb 23, 2017 11:40 PM, "Iago Toral Quiroga" <ito...@igalia.com> > > wrote: > > According to the PRM description of the Depth field: > > > > "This field specifies the total number of levels for a volume > > texture > > or the number of array elements allowed to be accessed starting at > > the > > Minimum Array Element for arrayed surfaces" > > > > However, ISL defines array_len as the length of the range > > [base_array_layer, base_array_layer + array_len], so it already > > represents > > a value relative to the base array layer like the hardware expects. > > > > This fixes a number of new CTS tests that would crash otherwise: > > dEQP-VK.pipeline.render_to_image.* > > --- > > src/intel/vulkan/genX_cmd_buffer.c | 3 +-- > > 1 file changed, 1 insertion(+), 2 deletions(-) > > > > diff --git a/src/intel/vulkan/genX_cmd_buffer.c > > b/src/intel/vulkan/genX_cmd_buffer.c > > index 40a72f4..3c7b544 100644 > > --- a/src/intel/vulkan/genX_cmd_buffer.c > > +++ b/src/intel/vulkan/genX_cmd_buffer.c > > @@ -2269,8 +2269,7 @@ cmd_buffer_emit_depth_stencil(struct > > anv_cmd_buffer *cmd_buffer) > > > > assert(image->depth_surface.isl.dim != ISL_SURF_DIM_3D); > > db.Depth = > > - db.RenderTargetViewExtent = > > - iview->isl.array_len - iview->isl.base_array_layer - 1; > > + db.RenderTargetViewExtent = iview->isl.array_len; > > > > Don't we still want the -1? > > The PRM says this about the Depth field: > > "This field specifies (...) the number of array elements allowed to be > accessed starting at the Minimum Array Element for arrayed surfaces" > > And in anv_get_layerCount, we compute this value as: > > range->layerCount == VK_REMAINING_ARRAY_LAYERS ? > image->array_size - range->baseArrayLayer : range->layerCount; > > Since we want the number of elements including Minimum Array Element, I > think we don't want the subtraction. > However, the field is a U11-1 field meaning it stores the actual value minus 1. So for a single slice, the value in the field should be zero. --Jason > Iago > > > #if GEN_GEN >= 8 > > db.SurfaceQPitch = > > -- > > 2.7.4 > > > > >
_______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
