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Merge pull request #7 from trahflow/interface
Change Interface from nd-array to vec-of-array
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,40 +1,92 @@ | ||
| module DiffPointRasterisationChainRulesCoreExt | ||
|
|
||
| using DiffPointRasterisation, ChainRulesCore | ||
| using DiffPointRasterisation, ChainRulesCore, StaticArrays | ||
|
|
||
| # single image | ||
| function ChainRulesCore.rrule( | ||
| ::typeof(raster), | ||
| ::typeof(DiffPointRasterisation.raster), | ||
| grid_size, | ||
| args..., | ||
| ) | ||
| out = raster(grid_size, args...) | ||
| points::AbstractVector{<:StaticVector{N_in, T}}, | ||
| rotation::AbstractMatrix{<:Number}, | ||
| translation::AbstractVector{<:Number}, | ||
| optional_args... | ||
| ) where {N_in, T<:Number} | ||
| out = raster(grid_size, points, rotation, translation, optional_args...) | ||
|
|
||
| raster_pullback(ds_dout) = NoTangent(), NoTangent(), values( | ||
| raster_pullback!( | ||
| function raster_pullback(ds_dout) | ||
| out_pb = raster_pullback!( | ||
| unthunk(ds_dout), | ||
| args..., | ||
| points, | ||
| rotation, | ||
| translation, | ||
| optional_args..., | ||
| ) | ||
| )[1:length(args)]... | ||
| ds_dpoints = reinterpret(reshape, SVector{N_in, T}, out_pb.points) | ||
| return NoTangent(), NoTangent(), ds_dpoints, values(out_pb)[2:3+length(optional_args)]... | ||
| end | ||
|
|
||
| return out, raster_pullback | ||
| end | ||
|
|
||
| ChainRulesCore.rrule( | ||
| f::typeof(DiffPointRasterisation.raster), | ||
| grid_size, | ||
| points::AbstractVector{<:AbstractVector{<:Number}}, | ||
| rotation::AbstractMatrix{<:Number}, | ||
| translation::AbstractVector{<:Number}, | ||
| optional_args... | ||
| ) = ChainRulesCore.rrule( | ||
| f, | ||
| grid_size, | ||
| DiffPointRasterisation.inner_to_sized(points), | ||
| rotation, | ||
| translation, | ||
| optional_args... | ||
| ) | ||
|
|
||
| # batch of images | ||
| function ChainRulesCore.rrule( | ||
| ::typeof(raster_project), | ||
| ::typeof(DiffPointRasterisation.raster), | ||
| grid_size, | ||
| args..., | ||
| ) | ||
| out = raster_project(grid_size, args...) | ||
| points::AbstractVector{<:StaticVector{N_in, TP}}, | ||
| rotation::AbstractVector{<:StaticMatrix{N_out, N_in, TR}}, | ||
| translation::AbstractVector{<:StaticVector{N_out, TT}}, | ||
| optional_args... | ||
| ) where {N_in, N_out, TP<:Number, TR<:Number, TT<:Number} | ||
| out = raster(grid_size, points, rotation, translation, optional_args...) | ||
|
|
||
| raster_project_pullback(ds_dout) = NoTangent(), NoTangent(), values( | ||
| raster_project_pullback!( | ||
| function raster_pullback(ds_dout) | ||
| out_pb = raster_pullback!( | ||
| unthunk(ds_dout), | ||
| args..., | ||
| points, | ||
| rotation, | ||
| translation, | ||
| optional_args..., | ||
| ) | ||
| )[1:length(args)]... | ||
| ds_dpoints = reinterpret(reshape, SVector{N_in, TP}, out_pb.points) | ||
| L = N_out * N_in | ||
| ds_drotation = reinterpret(reshape, SMatrix{N_out, N_in, TR, L}, reshape(out_pb.rotation, L, :)) | ||
| ds_dtranslation = reinterpret(reshape, SVector{N_out, TT}, out_pb.translation) | ||
| return NoTangent(), NoTangent(), ds_dpoints, ds_drotation, ds_dtranslation, values(out_pb)[4:3+length(optional_args)]... | ||
| end | ||
|
|
||
| return out, raster_project_pullback | ||
| return out, raster_pullback | ||
| end | ||
|
|
||
| ChainRulesCore.rrule( | ||
| f::typeof(DiffPointRasterisation.raster), | ||
| grid_size, | ||
| points::AbstractVector{<:AbstractVector{<:Number}}, | ||
| rotation::AbstractVector{<:AbstractMatrix{<:Number}}, | ||
| translation::AbstractVector{<:AbstractVector{<:Number}}, | ||
| optional_args... | ||
| ) = ChainRulesCore.rrule( | ||
| f, | ||
| grid_size, | ||
| DiffPointRasterisation.inner_to_sized(points), | ||
| DiffPointRasterisation.inner_to_sized(rotation), | ||
| DiffPointRasterisation.inner_to_sized(translation), | ||
| optional_args... | ||
| ) | ||
|
|
||
| end # module DiffPointRasterisationChainRulesCoreExt |
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