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Add internal planners #67

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Add internal planners #67

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058339c
Add publicly accessible internal planning functions
dannys4 May 6, 2025
0f67e0b
Add working internal mechanism
dannys4 May 6, 2025
f1dd1fe
Add explicit inline request
dannys4 May 6, 2025
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23 changes: 18 additions & 5 deletions src/plan.jl
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
import Base: *
import LinearAlgebra: mul!
using AbstractFFTs: to1, plan_fft, plan_bfft, plan_ifft, plan_rfft

abstract type FFTAPlan{T,N} <: Plan{T} end

Expand All @@ -20,7 +21,7 @@ struct FFTAPlan_re{T,N} <: FFTAPlan{T,N}
flen::Int
end

function AbstractFFTs.plan_fft(x::AbstractArray{T}, region; kwargs...)::FFTAPlan_cx{T} where {T <: Complex}
function __FFTA_plan_fft(x::AbstractArray{T}, region = 1:ndims(x); kwargs...)::FFTAPlan_cx{T} where {T <: Complex}
N = length(region)
@assert N <= 2 "Only supports vectors and matrices"
if N == 1
Expand All @@ -36,7 +37,7 @@ function AbstractFFTs.plan_fft(x::AbstractArray{T}, region; kwargs...)::FFTAPlan
end
end

function AbstractFFTs.plan_bfft(x::AbstractArray{T}, region; kwargs...)::FFTAPlan_cx{T} where {T <: Complex}
function __FFTA_plan_bfft(x::AbstractArray{T}, region = 1:ndims(x); kwargs...)::FFTAPlan_cx{T} where {T <: Complex}
N = length(region)
@assert N <= 2 "Only supports vectors and matrices"
if N == 1
Expand All @@ -52,7 +53,7 @@ function AbstractFFTs.plan_bfft(x::AbstractArray{T}, region; kwargs...)::FFTAPla
end
end

function AbstractFFTs.plan_rfft(x::AbstractArray{T}, region; kwargs...)::FFTAPlan_re{Complex{T}} where {T <: Real}
function __FFTA_plan_rfft(x::AbstractArray{T}, region = 1:ndims(x); kwargs...)::FFTAPlan_re{Complex{T}} where {T <: Real}
N = length(region)
@assert N <= 2 "Only supports vectors and matrices"
if N == 1
Expand All @@ -68,7 +69,7 @@ function AbstractFFTs.plan_rfft(x::AbstractArray{T}, region; kwargs...)::FFTAPla
end
end

function AbstractFFTs.plan_brfft(x::AbstractArray{T}, len, region; kwargs...)::FFTAPlan_re{T} where {T}
function __FFTA_plan_brfft(x::AbstractArray{T}, len, region = 1:ndims(x); kwargs...)::FFTAPlan_re{T} where {T}
N = length(region)
@assert N <= 2 "Only supports vectors and matrices"
if N == 1
Expand Down Expand Up @@ -184,4 +185,16 @@ function *(p::FFTAPlan_re{T,N}, x::AbstractArray{T,2}) where {T<:Union{Real, Com
LinearAlgebra.mul!(y, p, x_tmp)
return y
end
end
end

# Implement AbstractFFTs overloading
for f in (:fft, :bfft, :rfft, :brfft)
pf = Symbol("__FFTA_plan_", f)
abstract_pf = Symbol("plan_", f)
T_super = f == :rfft ? Real : Complex
@eval begin
@inline function AbstractFFTs.$abstract_pf(x::AbstractArray{T}, args...; kws...) where {T<:$T_super}
$pf(x, args...; kws...)
end
end
end
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