1*b6fb3261SAndroid Build Coastguard Worker# 2D Fast Fourier Transform package 2*b6fb3261SAndroid Build Coastguard Worker# from http://momonga.t.u-tokyo.ac.jp/~ooura/fft2d.html 3*b6fb3261SAndroid Build Coastguard Worker 4*b6fb3261SAndroid Build Coastguard Workerpackage( 5*b6fb3261SAndroid Build Coastguard Worker default_visibility = ["//visibility:public"], 6*b6fb3261SAndroid Build Coastguard Worker) 7*b6fb3261SAndroid Build Coastguard Worker 8*b6fb3261SAndroid Build Coastguard Worker# Unrestricted use; can only distribute original package. 9*b6fb3261SAndroid Build Coastguard Workerlicenses(["notice"]) 10*b6fb3261SAndroid Build Coastguard Worker 11*b6fb3261SAndroid Build Coastguard Workerexports_files(["readme2d.txt"]) 12*b6fb3261SAndroid Build Coastguard Worker 13*b6fb3261SAndroid Build Coastguard WorkerFFT2D_SRCS = [ 14*b6fb3261SAndroid Build Coastguard Worker "fftsg.c", 15*b6fb3261SAndroid Build Coastguard Worker "fftsg2d.c", 16*b6fb3261SAndroid Build Coastguard Worker] 17*b6fb3261SAndroid Build Coastguard Worker 18*b6fb3261SAndroid Build Coastguard Workerconfig_setting( 19*b6fb3261SAndroid Build Coastguard Worker name = "windows", 20*b6fb3261SAndroid Build Coastguard Worker values = {"cpu": "x64_windows"}, 21*b6fb3261SAndroid Build Coastguard Worker) 22*b6fb3261SAndroid Build Coastguard Worker 23*b6fb3261SAndroid Build Coastguard Worker# This is the main 2D FFT library. The 2D FFTs in this library call 24*b6fb3261SAndroid Build Coastguard Worker# 1D FFTs. In addition, fast DCTs are provided for the special case 25*b6fb3261SAndroid Build Coastguard Worker# of 8x8 and 16x16. This code in this library is referred to as 26*b6fb3261SAndroid Build Coastguard Worker# "Version II" on http://momonga.t.u-tokyo.ac.jp/~ooura/fft2d.html. 27*b6fb3261SAndroid Build Coastguard Workercc_library( 28*b6fb3261SAndroid Build Coastguard Worker name = "fft2d", 29*b6fb3261SAndroid Build Coastguard Worker srcs = FFT2D_SRCS, 30*b6fb3261SAndroid Build Coastguard Worker linkopts = select({ 31*b6fb3261SAndroid Build Coastguard Worker ":windows": [], 32*b6fb3261SAndroid Build Coastguard Worker "//conditions:default": ["-lm"], 33*b6fb3261SAndroid Build Coastguard Worker }), 34*b6fb3261SAndroid Build Coastguard Worker) 35*b6fb3261SAndroid Build Coastguard Worker 36*b6fb3261SAndroid Build Coastguard Workerobjc_library( 37*b6fb3261SAndroid Build Coastguard Worker name = "fft2d_ios", 38*b6fb3261SAndroid Build Coastguard Worker srcs = FFT2D_SRCS, 39*b6fb3261SAndroid Build Coastguard Worker) 40*b6fb3261SAndroid Build Coastguard Worker 41*b6fb3261SAndroid Build Coastguard Worker# Export the source code so that it could be compiled for Andoid native apps. 42*b6fb3261SAndroid Build Coastguard Workerfilegroup( 43*b6fb3261SAndroid Build Coastguard Worker name = "fft2d_srcs", 44*b6fb3261SAndroid Build Coastguard Worker srcs = FFT2D_SRCS, 45*b6fb3261SAndroid Build Coastguard Worker) 46