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path: root/src/sndobj/rfftw/frc_16.c
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Diffstat (limited to 'src/sndobj/rfftw/frc_16.c')
-rw-r--r--src/sndobj/rfftw/frc_16.c218
1 files changed, 218 insertions, 0 deletions
diff --git a/src/sndobj/rfftw/frc_16.c b/src/sndobj/rfftw/frc_16.c
new file mode 100644
index 0000000..fc4c6ba
--- /dev/null
+++ b/src/sndobj/rfftw/frc_16.c
@@ -0,0 +1,218 @@
+/*
+ * Copyright (c) 1997-1999 Massachusetts Institute of Technology
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+/* This file was automatically generated --- DO NOT EDIT */
+/* Generated on Sun Nov 7 20:43:58 EST 1999 */
+
+#include <fftw-int.h>
+#include <fftw.h>
+
+/* Generated by: ./genfft -magic-alignment-check -magic-twiddle-load-all -magic-variables 4 -magic-loopi -real2hc 16 */
+
+/*
+ * This function contains 58 FP additions, 12 FP multiplications,
+ * (or, 54 additions, 8 multiplications, 4 fused multiply/add),
+ * 30 stack variables, and 32 memory accesses
+ */
+static const fftw_real K707106781 = FFTW_KONST(+0.707106781186547524400844362104849039284835938);
+static const fftw_real K923879532 = FFTW_KONST(+0.923879532511286756128183189396788286822416626);
+static const fftw_real K382683432 = FFTW_KONST(+0.382683432365089771728459984030398866761344562);
+
+/*
+ * Generator Id's :
+ * $Id: frc_16.c,v 1.1.1.1 2006/05/12 15:14:55 veplaini Exp $
+ * $Id: frc_16.c,v 1.1.1.1 2006/05/12 15:14:55 veplaini Exp $
+ * $Id: frc_16.c,v 1.1.1.1 2006/05/12 15:14:55 veplaini Exp $
+ */
+
+void fftw_real2hc_16(const fftw_real *input, fftw_real *real_output, fftw_real *imag_output, int istride, int real_ostride, int imag_ostride)
+{
+ fftw_real tmp3;
+ fftw_real tmp6;
+ fftw_real tmp7;
+ fftw_real tmp35;
+ fftw_real tmp18;
+ fftw_real tmp33;
+ fftw_real tmp40;
+ fftw_real tmp48;
+ fftw_real tmp56;
+ fftw_real tmp10;
+ fftw_real tmp13;
+ fftw_real tmp14;
+ fftw_real tmp36;
+ fftw_real tmp17;
+ fftw_real tmp26;
+ fftw_real tmp41;
+ fftw_real tmp51;
+ fftw_real tmp57;
+ fftw_real tmp16;
+ fftw_real tmp15;
+ fftw_real tmp43;
+ fftw_real tmp44;
+ ASSERT_ALIGNED_DOUBLE;
+ {
+ fftw_real tmp1;
+ fftw_real tmp2;
+ fftw_real tmp4;
+ fftw_real tmp5;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp1 = input[0];
+ tmp2 = input[8 * istride];
+ tmp3 = tmp1 + tmp2;
+ tmp4 = input[4 * istride];
+ tmp5 = input[12 * istride];
+ tmp6 = tmp4 + tmp5;
+ tmp7 = tmp3 + tmp6;
+ tmp35 = tmp1 - tmp2;
+ tmp18 = tmp4 - tmp5;
+ }
+ {
+ fftw_real tmp29;
+ fftw_real tmp46;
+ fftw_real tmp32;
+ fftw_real tmp47;
+ ASSERT_ALIGNED_DOUBLE;
+ {
+ fftw_real tmp27;
+ fftw_real tmp28;
+ fftw_real tmp30;
+ fftw_real tmp31;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp27 = input[istride];
+ tmp28 = input[9 * istride];
+ tmp29 = tmp27 - tmp28;
+ tmp46 = tmp27 + tmp28;
+ tmp30 = input[5 * istride];
+ tmp31 = input[13 * istride];
+ tmp32 = tmp30 - tmp31;
+ tmp47 = tmp30 + tmp31;
+ }
+ tmp33 = (K382683432 * tmp29) + (K923879532 * tmp32);
+ tmp40 = (K923879532 * tmp29) - (K382683432 * tmp32);
+ tmp48 = tmp46 - tmp47;
+ tmp56 = tmp46 + tmp47;
+ }
+ {
+ fftw_real tmp8;
+ fftw_real tmp9;
+ fftw_real tmp11;
+ fftw_real tmp12;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp8 = input[2 * istride];
+ tmp9 = input[10 * istride];
+ tmp10 = tmp8 + tmp9;
+ tmp16 = tmp8 - tmp9;
+ tmp11 = input[14 * istride];
+ tmp12 = input[6 * istride];
+ tmp13 = tmp11 + tmp12;
+ tmp15 = tmp11 - tmp12;
+ }
+ tmp14 = tmp10 + tmp13;
+ tmp36 = K707106781 * (tmp16 + tmp15);
+ tmp17 = K707106781 * (tmp15 - tmp16);
+ {
+ fftw_real tmp22;
+ fftw_real tmp49;
+ fftw_real tmp25;
+ fftw_real tmp50;
+ ASSERT_ALIGNED_DOUBLE;
+ {
+ fftw_real tmp20;
+ fftw_real tmp21;
+ fftw_real tmp23;
+ fftw_real tmp24;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp20 = input[15 * istride];
+ tmp21 = input[7 * istride];
+ tmp22 = tmp20 - tmp21;
+ tmp49 = tmp20 + tmp21;
+ tmp23 = input[3 * istride];
+ tmp24 = input[11 * istride];
+ tmp25 = tmp23 - tmp24;
+ tmp50 = tmp23 + tmp24;
+ }
+ tmp26 = (K382683432 * tmp22) - (K923879532 * tmp25);
+ tmp41 = (K923879532 * tmp22) + (K382683432 * tmp25);
+ tmp51 = tmp49 - tmp50;
+ tmp57 = tmp49 + tmp50;
+ }
+ {
+ fftw_real tmp55;
+ fftw_real tmp58;
+ fftw_real tmp53;
+ fftw_real tmp54;
+ ASSERT_ALIGNED_DOUBLE;
+ real_output[4 * real_ostride] = tmp7 - tmp14;
+ tmp55 = tmp7 + tmp14;
+ tmp58 = tmp56 + tmp57;
+ real_output[8 * real_ostride] = tmp55 - tmp58;
+ real_output[0] = tmp55 + tmp58;
+ imag_output[4 * imag_ostride] = tmp57 - tmp56;
+ tmp53 = tmp13 - tmp10;
+ tmp54 = K707106781 * (tmp51 - tmp48);
+ imag_output[2 * imag_ostride] = tmp53 + tmp54;
+ imag_output[6 * imag_ostride] = tmp54 - tmp53;
+ }
+ {
+ fftw_real tmp45;
+ fftw_real tmp52;
+ fftw_real tmp39;
+ fftw_real tmp42;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp45 = tmp3 - tmp6;
+ tmp52 = K707106781 * (tmp48 + tmp51);
+ real_output[6 * real_ostride] = tmp45 - tmp52;
+ real_output[2 * real_ostride] = tmp45 + tmp52;
+ tmp39 = tmp35 + tmp36;
+ tmp42 = tmp40 + tmp41;
+ real_output[7 * real_ostride] = tmp39 - tmp42;
+ real_output[real_ostride] = tmp39 + tmp42;
+ }
+ tmp43 = tmp18 + tmp17;
+ tmp44 = tmp41 - tmp40;
+ imag_output[3 * imag_ostride] = tmp43 + tmp44;
+ imag_output[5 * imag_ostride] = tmp44 - tmp43;
+ {
+ fftw_real tmp19;
+ fftw_real tmp34;
+ fftw_real tmp37;
+ fftw_real tmp38;
+ ASSERT_ALIGNED_DOUBLE;
+ tmp19 = tmp17 - tmp18;
+ tmp34 = tmp26 - tmp33;
+ imag_output[imag_ostride] = tmp19 + tmp34;
+ imag_output[7 * imag_ostride] = tmp34 - tmp19;
+ tmp37 = tmp35 - tmp36;
+ tmp38 = tmp33 + tmp26;
+ real_output[5 * real_ostride] = tmp37 - tmp38;
+ real_output[3 * real_ostride] = tmp37 + tmp38;
+ }
+}
+
+fftw_codelet_desc fftw_real2hc_16_desc =
+{
+ "fftw_real2hc_16",
+ (void (*)()) fftw_real2hc_16,
+ 16,
+ FFTW_FORWARD,
+ FFTW_REAL2HC,
+ 354,
+ 0,
+ (const int *) 0,
+};
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-05 11:02:29 +0000