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Description: Switch dependency from FFTW2 to FFTW3
Author: Ionut Georgescu
Bug: http://bugs.debian.org/264201
Index: grace-5.1.24-patch/src/fourier.c
===================================================================
--- grace-5.1.24-patch.orig/src/fourier.c
+++ grace-5.1.24-patch/src/fourier.c
@@ -230,7 +230,8 @@ static int bit_swap(int i, int nu)
#else
/* Start of new FFTW-based transforms by Marcus H. Mendenhall */
-#include <fftw.h>
+#include <complex.h>
+#include <fftw3.h>
#include <string.h>
static char *wisdom_file=0;
@@ -258,7 +259,7 @@ void dft(double *jr, double *ji, int n,
fftw_plan plan;
int i;
double ninv;
- FFTW_COMPLEX *cbuf;
+ fftw_complex *cbuf;
static int wisdom_inited=0;
char *ram_cache_wisdom;
int plan_flags;
@@ -274,7 +275,7 @@ void dft(double *jr, double *ji, int n,
if(wisdom_file && wisdom_file[0] ) {
/* if a file was specified in GRACE_FFTW_WISDOM_FILE, try to read it */
FILE *wf;
- fftw_status fstat;
+ int fstat;
wf=fopen(wisdom_file,"r");
if(wf) {
fstat=fftw_import_wisdom_from_file(wf);
@@ -286,30 +287,35 @@ void dft(double *jr, double *ji, int n,
}
}
- plan_flags=using_wisdom? (FFTW_USE_WISDOM | FFTW_MEASURE) : FFTW_ESTIMATE;
-
- plan=fftw_create_plan(n, iflag?FFTW_BACKWARD:FFTW_FORWARD,
- plan_flags | FFTW_IN_PLACE);
- cbuf=xcalloc(n, sizeof(*cbuf));
+ /* fftw_malloc behaves like malloc except that it properly aligns the array
+ * when SIMD instructions (such as SSE and Altivec) are available.
+ */
+ cbuf=(fftw_complex *)fftw_malloc(n*sizeof(fftw_complex));
if(!cbuf) return;
+
for(i=0; i<n; i++) {
- cbuf[i].re=jr[i]; cbuf[i].im=ji[i];
+ cbuf[i] = jr[i] + I * ji[i];
}
- fftw(plan, 1, cbuf, 1, 1, 0, 1, 1);
+
+ plan_flags=using_wisdom? (FFTW_MEASURE) : FFTW_ESTIMATE;
+ plan=fftw_plan_dft_1d(n, cbuf, cbuf, iflag?FFTW_BACKWARD:FFTW_FORWARD,
+ plan_flags);
+
+ fftw_execute(plan);
fftw_destroy_plan(plan);
if(!iflag) {
ninv=1.0/n;
for(i=0; i<n; i++) {
- jr[i]=cbuf[i].re*ninv; ji[i]=cbuf[i].im*ninv;
+ jr[i]=creal(cbuf[i])*ninv; ji[i]=cimag(cbuf[i])*ninv;
}
} else {
for(i=0; i<n; i++) {
- jr[i]=cbuf[i].re; ji[i]=cbuf[i].im;
+ jr[i]=creal(cbuf[i]); ji[i]=cimag(cbuf[i]);
}
}
- XCFREE(cbuf);
+ fftw_free(cbuf);
}
Index: grace-5.1.24-patch/ac-tools/configure.in
===================================================================
--- grace-5.1.24-patch.orig/ac-tools/configure.in
+++ grace-5.1.24-patch/ac-tools/configure.in
@@ -554,8 +554,17 @@ fi
if test $fftw = true
then
- ACX_CHECK_FFTW(2.1.3, AC_DEFINE(HAVE_FFTW),
- AC_MSG_RESULT(--> using legacy unoptimized FFT code))
+ AC_CHECK_HEADERS(fftw3.h,
+ [
+ AC_CHECK_LIB(fftw3, fftw_execute,
+ [
+ FFTW_LIB="-lfftw3"
+ AC_DEFINE(HAVE_FFTW)
+ ],
+ [AC_MSG_RESULT([--> using legacy unoptimized FFT code])]
+ )
+ ],
+ [AC_MSG_RESULT([--> using legacy unoptimized FFT code])])
fi
dnl **** check for libz - needed for PDF and PNG drivers and XmHTML
Index: grace-5.1.24-patch/configure
===================================================================
--- grace-5.1.24-patch.orig/configure
+++ grace-5.1.24-patch/configure
@@ -748,7 +748,6 @@ with_printcmd
enable_debug
enable_maintainer
with_netcdf_libraries
-with_fftw_library
with_zlib_library
with_jpeg_library
with_png_library
@@ -1412,7 +1411,6 @@ Optional Packages:
--with-helpviewer=COMMAND define help viewer command ["mozilla %s"]
--with-printcmd=PROG use PROG for printing
--with-netcdf-libraries=OBJ use OBJ as netCDF libraries [-lnetcdf]
- --with-fftw-library=OBJ use OBJ as FFTW library [-lfftw]
--with-zlib-library=OBJ use OBJ as ZLIB library [-lz]
--with-jpeg-library=OBJ use OBJ as JPEG library [-ljpeg]
--with-png-library=OBJ use OBJ as PNG library [-lpng]
@@ -8225,84 +8223,69 @@ fi
if test $fftw = true
then
+ for ac_header in fftw3.h
+do :
+ ac_fn_c_check_header_mongrel "$LINENO" "fftw3.h" "ac_cv_header_fftw3_h" "$ac_includes_default"
+if test "x$ac_cv_header_fftw3_h" = xyes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_FFTW3_H 1
+_ACEOF
-
-# Check whether --with-fftw_library was given.
-if test "${with_fftw_library+set}" = set; then :
- withval=$with_fftw_library; fftw_library="$withval"
-fi
-
- if test "x$fftw_library" = "x"
- then
- fftw_library=-lfftw
- fi
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for FFTW library >= 2.1.3" >&5
-$as_echo_n "checking for FFTW library >= 2.1.3... " >&6; }
-if ${acx_cv_fftw+:} false; then :
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fftw_execute in -lfftw3" >&5
+$as_echo_n "checking for fftw_execute in -lfftw3... " >&6; }
+if ${ac_cv_lib_fftw3_fftw_execute+:} false; then :
$as_echo_n "(cached) " >&6
else
- if ${acx_cv_fftw_library+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- acx_cv_fftw_library=$fftw_library
-fi
-
-
- save_CFLAGS=$CFLAGS
- save_CPPFLAGS=$CPPFLAGS
- save_LDFLAGS=$LDFLAGS
- save_LIBS=$LIBS
-
- LIBS="$acx_cv_fftw_library $LIBS"
- if test "$cross_compiling" = yes; then :
- acx_cv_fftw="no"
-
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lfftw3 $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
-#include <fftw.h>
-#include <string.h>
- int main(void) {
- char *vlib = (char *) fftw_version;
- if (strcmp(vlib, "2.1.3") < 0) {
- exit(1);
- }
- exit(0);
- }
-
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char fftw_execute ();
+int
+main ()
+{
+return fftw_execute ();
+ ;
+ return 0;
+}
_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
- acx_cv_fftw="yes"
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_fftw3_fftw_execute=yes
else
- acx_cv_fftw="no"
+ ac_cv_lib_fftw3_fftw_execute=no
fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
- conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_fftw3_fftw_execute" >&5
+$as_echo "$ac_cv_lib_fftw3_fftw_execute" >&6; }
+if test "x$ac_cv_lib_fftw3_fftw_execute" = xyes; then :
+ FFTW_LIB="-lfftw3"
+ $as_echo "#define HAVE_FFTW 1" >>confdefs.h
- CFLAGS=$save_CFLAGS
- CPPFLAGS=$save_CPPFLAGS
- LDFLAGS=$save_LDFLAGS
- LIBS=$save_LIBS
-
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: --> using legacy unoptimized FFT code" >&5
+$as_echo "--> using legacy unoptimized FFT code" >&6; }
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_fftw" >&5
-$as_echo "$acx_cv_fftw" >&6; }
- if test "$acx_cv_fftw" = "yes"
- then
- FFTW_LIB="$acx_cv_fftw_library"
- $as_echo "#define HAVE_FFTW 1" >>confdefs.h
- else
- FFTW_LIB=
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: --> using legacy unoptimized FFT code" >&5
+
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: --> using legacy unoptimized FFT code" >&5
$as_echo "--> using legacy unoptimized FFT code" >&6; }
- fi
+fi
+
+done
fi
|