Initial steps to support double precision. Replace data_t with float, and cdata_t with ffts_cpx_32f.

1 files changed, 78 insertions, 7 deletions

diff --git a/src/ffts_small.h b/src/ffts_small.h
index 5ae48cc..249dcc9 100644
--- a/src/ffts_small.h
+++ b/src/ffts_small.h
@@ -1,14 +1,85 @@
+/*
+
+This file is part of FFTS -- The Fastest Fourier Transform in the South
+
+Copyright (c) 2013, Michael J. Cree <mcree@orcon.net.nz>
+Copyright (c) 2012, 2013, Anthony M. Blake <amb@anthonix.com>
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+* Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+* Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+* Neither the name of the organization nor the
+names of its contributors may be used to endorse or promote products
+derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL ANTHONY M. BLAKE BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*/
+
 #ifndef FFTS_SMALL_H
 #define FFTS_SMALL_H
 
+#if defined (_MSC_VER) && (_MSC_VER >= 1020)
+#pragma once
+#endif
+
 #include "ffts.h"
 
-void ffts_firstpass_16_f(ffts_plan_t *p, const void *in, void *out);
-void ffts_firstpass_16_b(ffts_plan_t *p, const void *in, void *out);
-void ffts_firstpass_8_f(ffts_plan_t *p, const void *in, void *out);
-void ffts_firstpass_8_b(ffts_plan_t *p, const void *in, void *out);
-void ffts_firstpass_4_f(ffts_plan_t *p, const void *in, void *out);
-void ffts_firstpass_4_b(ffts_plan_t *p, const void *in, void *out);
-void ffts_firstpass_2(ffts_plan_t *p, const void *in, void *out);
+void
+ffts_small_2_32f(ffts_plan_t *p, const void *in, void *out);
+
+void
+ffts_small_2_64f(ffts_plan_t *p, const void *in, void *out);
+
+void
+ffts_small_forward4_32f(ffts_plan_t *p, const void *in, void *out);
+
+void
+ffts_small_forward4_64f(ffts_plan_t *p, const void *in, void *out);
+
+void
+ffts_small_backward4_32f(ffts_plan_t *p, const void *in, void *out);
+
+void
+ffts_small_backward4_64f(ffts_plan_t *p, const void *in, void *out);
+
+void
+ffts_small_forward8_32f(ffts_plan_t *p, const void *in, void *out);
+
+void
+ffts_small_forward8_64f(ffts_plan_t *p, const void *in, void *out);
+
+void
+ffts_small_backward8_32f(ffts_plan_t *p, const void *in, void *out);
+
+void
+ffts_small_backward8_64f(ffts_plan_t *p, const void *in, void *out);
+
+void
+ffts_small_forward16_32f(ffts_plan_t *p, const void *in, void *out);
+
+void
+ffts_small_forward16_64f(ffts_plan_t *p, const void *in, void *out);
+
+void
+ffts_small_backward16_32f(ffts_plan_t *p, const void *in, void *out);
+
+void
+ffts_small_backward16_64f(ffts_plan_t *p, const void *in, void *out);
 
 #endif /* FFTS_SMALL_H */