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# 2D Fast Fourier Transform package
# from http://momonga.t.u-tokyo.ac.jp/~ooura/fft.html
package(
default_visibility = ["//visibility:public"],
)
# Unrestricted use; can only distribute original package.
licenses(["notice"])
exports_files(["fft/readme.txt"])
FFT2D_SRCS = [
"fft/fftsg.c",
]
config_setting(
name = "windows",
values = {"cpu": "x64_windows"},
)
# This is the main 2D FFT library. The 2D FFTs in this library call
# 1D FFTs. In addition, fast DCTs are provided for the special case
# of 8x8 and 16x16. This code in this library is referred to as
# "Version II" on http://momonga.t.u-tokyo.ac.jp/~ooura/fft.html.
cc_library(
name = "fft2d",
srcs = FFT2D_SRCS,
linkopts = select({
":windows": [],
"//conditions:default": ["-lm"],
}),
)
objc_library(
name = "fft2d_ios",
srcs = FFT2D_SRCS,
)
# Export the source code so that it could be compiled for Andoid native apps.
filegroup(
name = "fft2d_srcs",
srcs = FFT2D_SRCS,
)
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