1# This Makefile.am specifies a set of codelets, efficient transforms 2# of small sizes, that are used as building blocks (kernels) by FFTW 3# to build up large transforms, as well as the options for generating 4# and compiling them. 5 6# You can customize FFTW for special needs, e.g. to handle certain 7# sizes more efficiently, by adding new codelets to the lists of those 8# included by default. If you change the list of codelets, any new 9# ones you added will be automatically generated when you run the 10# bootstrap script (see "Generating your own code" in the FFTW 11# manual). 12 13########################################################################### 14AM_CPPFLAGS = -I $(top_srcdir) 15noinst_LTLIBRARIES = librdft_scalar_r2cb.la 16 17########################################################################### 18# r2cb_<n> is a hard-coded complex-to-real FFT of size <n> (base cases 19# of real-output FFT recursion) 20R2CB = r2cb_2.c r2cb_3.c r2cb_4.c r2cb_5.c r2cb_6.c r2cb_7.c r2cb_8.c \ 21r2cb_9.c r2cb_10.c r2cb_11.c r2cb_12.c r2cb_13.c r2cb_14.c r2cb_15.c \ 22r2cb_16.c r2cb_32.c r2cb_64.c r2cb_128.c r2cb_20.c r2cb_25.c 23# r2cb_30.c r2cb_40.c r2cb_50.c 24 25########################################################################### 26# hb_<r> is a "twiddle" FFT of size <r>, implementing a radix-r DIF 27# step for a real-output FFT. Every hb codelet must have a 28# corresponding r2cbIII codelet (see below)! 29HB = hb_2.c hb_3.c hb_4.c hb_5.c hb_6.c hb_7.c hb_8.c hb_9.c \ 30hb_10.c hb_12.c hb_15.c hb_16.c hb_32.c hb_64.c \ 31hb_20.c hb_25.c # hb_30.c hb_40.c hb_50.c 32 33# like hb, but generates part of its trig table on the fly (good for large n) 34HB2 = hb2_4.c hb2_8.c hb2_16.c hb2_32.c \ 35hb2_5.c hb2_20.c hb2_25.c 36 37# an r2cb transform where the output is shifted by half a sample (input 38# is multiplied by a phase). This is needed as part of the DIF recursion; 39# every hb_<r> or hb2_<r> codelet should have a corresponding r2cbIII_<r> 40R2CBIII = r2cbIII_2.c r2cbIII_3.c r2cbIII_4.c r2cbIII_5.c r2cbIII_6.c \ 41r2cbIII_7.c r2cbIII_8.c r2cbIII_9.c r2cbIII_10.c r2cbIII_12.c \ 42r2cbIII_15.c r2cbIII_16.c r2cbIII_32.c r2cbIII_64.c \ 43r2cbIII_20.c r2cbIII_25.c # r2cbIII_30.c r2cbIII_40.c r2cbIII_50.c 44 45########################################################################### 46# hc2cb_<r> is a "twiddle" FFT of size <r>, implementing a radix-r DIF 47# step for a real-input FFT with rdft2-style output. <r> must be even. 48HC2CB = hc2cb_2.c hc2cb_4.c hc2cb_6.c hc2cb_8.c hc2cb_10.c hc2cb_12.c \ 49hc2cb_16.c hc2cb_32.c \ 50hc2cb_20.c # hc2cb_30.c 51 52HC2CBDFT = hc2cbdft_2.c hc2cbdft_4.c hc2cbdft_6.c hc2cbdft_8.c \ 53hc2cbdft_10.c hc2cbdft_12.c hc2cbdft_16.c hc2cbdft_32.c \ 54hc2cbdft_20.c # hc2cbdft_30.c 55 56# like hc2cb, but generates part of its trig table on the fly (good 57# for large n) 58HC2CB2 = hc2cb2_4.c hc2cb2_8.c hc2cb2_16.c hc2cb2_32.c \ 59hc2cb2_20.c # hc2cb2_30.c 60HC2CBDFT2 = hc2cbdft2_4.c hc2cbdft2_8.c hc2cbdft2_16.c hc2cbdft2_32.c \ 61hc2cbdft2_20.c # hc2cbdft2_30.c 62 63########################################################################### 64ALL_CODELETS = $(R2CB) $(HB) $(HB2) $(R2CBIII) $(HC2CB) $(HC2CB2) \ 65$(HC2CBDFT) $(HC2CBDFT2) 66 67BUILT_SOURCES= $(ALL_CODELETS) $(CODLIST) 68 69librdft_scalar_r2cb_la_SOURCES = $(BUILT_SOURCES) 70 71SOLVTAB_NAME = X(solvtab_rdft_r2cb) 72XRENAME=X 73 74# special rules for regenerating codelets. 75include $(top_srcdir)/support/Makefile.codelets 76 77if MAINTAINER_MODE 78FLAGS_R2CB=$(RDFT_FLAGS_COMMON) -sign 1 79FLAGS_HB=$(RDFT_FLAGS_COMMON) -sign 1 80FLAGS_HB2=$(RDFT_FLAGS_COMMON) -sign 1 -twiddle-log3 -precompute-twiddles 81FLAGS_HC2CB=$(RDFT_FLAGS_COMMON) -sign 1 82FLAGS_HC2CB2=$(RDFT_FLAGS_COMMON) -sign 1 -twiddle-log3 -precompute-twiddles 83FLAGS_R2CBIII=$(RDFT_FLAGS_COMMON) -sign 1 84 85r2cb_%.c: $(CODELET_DEPS) $(GEN_R2CB) 86 ($(PRELUDE_COMMANDS_RDFT); $(TWOVERS) $(GEN_R2CB) $(FLAGS_R2CB) -n $* -name r2cb_$* -include "rdft/scalar/r2cb.h") | $(ADD_DATE) | $(INDENT) >$@ 87 88hb_%.c: $(CODELET_DEPS) $(GEN_HC2HC) 89 ($(PRELUDE_COMMANDS_RDFT); $(TWOVERS) $(GEN_HC2HC) $(FLAGS_HB) -n $* -dif -name hb_$* -include "rdft/scalar/hb.h") | $(ADD_DATE) | $(INDENT) >$@ 90 91hb2_%.c: $(CODELET_DEPS) $(GEN_HC2HC) 92 ($(PRELUDE_COMMANDS_RDFT); $(TWOVERS) $(GEN_HC2HC) $(FLAGS_HB2) -n $* -dif -name hb2_$* -include "rdft/scalar/hb.h") | $(ADD_DATE) | $(INDENT) >$@ 93 94r2cbIII_%.c: $(CODELET_DEPS) $(GEN_R2CB) 95 ($(PRELUDE_COMMANDS_RDFT); $(TWOVERS) $(GEN_R2CB) $(FLAGS_R2CB) -n $* -name r2cbIII_$* -dft-III -include "rdft/scalar/r2cbIII.h") | $(ADD_DATE) | $(INDENT) >$@ 96 97hc2cb_%.c: $(CODELET_DEPS) $(GEN_HC2C) 98 ($(PRELUDE_COMMANDS_RDFT); $(TWOVERS) $(GEN_HC2C) $(FLAGS_HC2CB) -n $* -dif -name hc2cb_$* -include "rdft/scalar/hc2cb.h") | $(ADD_DATE) | $(INDENT) >$@ 99 100hc2cb2_%.c: $(CODELET_DEPS) $(GEN_HC2C) 101 ($(PRELUDE_COMMANDS_RDFT); $(TWOVERS) $(GEN_HC2C) $(FLAGS_HC2CB2) -n $* -dif -name hc2cb2_$* -include "rdft/scalar/hc2cb.h") | $(ADD_DATE) | $(INDENT) >$@ 102 103hc2cbdft_%.c: $(CODELET_DEPS) $(GEN_HC2CDFT) 104 ($(PRELUDE_COMMANDS_RDFT); $(TWOVERS) $(GEN_HC2CDFT) $(FLAGS_HC2CB) -n $* -dif -name hc2cbdft_$* -include "rdft/scalar/hc2cb.h") | $(ADD_DATE) | $(INDENT) >$@ 105 106hc2cbdft2_%.c: $(CODELET_DEPS) $(GEN_HC2CDFT) 107 ($(PRELUDE_COMMANDS_RDFT); $(TWOVERS) $(GEN_HC2CDFT) $(FLAGS_HC2CB) -n $* -dif -name hc2cbdft2_$* -include "rdft/scalar/hc2cb.h") | $(ADD_DATE) | $(INDENT) >$@ 108 109endif # MAINTAINER_MODE 110