1da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com/* 2da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. 3da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com * 4da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com * Use of this source code is governed by a BSD-style license 5da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com * that can be found in the LICENSE file in the root of the source 6da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com * tree. An additional intellectual property rights grant can be found 7da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com * in the file PATENTS. All contributing project authors may 8da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com * be found in the AUTHORS file in the root of the source tree. 9da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com * 10da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com */ 11da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com 12da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com#include "dl/api/omxtypes.h" 13da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com 14da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.comvoid x86SP_FFT_CToC_FC32_Inv_Radix4_fs( 15da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com const OMX_F32 *in, 16da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com OMX_F32 *out, 17da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com OMX_INT n) { 18da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com OMX_INT i; 19da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com OMX_INT n_by_4 = n >> 2; 20da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com OMX_F32 *out0 = out; 21da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com 22da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com for (i = 0; i < n_by_4; i++) { 23da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com const OMX_F32 *in0 = in + i; 24da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com const OMX_F32 *in1 = in0 + n_by_4; 25da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com const OMX_F32 *in2 = in1 + n_by_4; 26da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com const OMX_F32 *in3 = in2 + n_by_4; 27da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com OMX_F32 *out1 = out0 + n_by_4; 28da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com OMX_F32 *out2 = out1 + n_by_4; 29da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com OMX_F32 *out3 = out2 + n_by_4; 30da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com 31da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com OMX_FC32 t0; 32da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com OMX_FC32 t1; 33da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com OMX_FC32 t2; 34da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com OMX_FC32 t3; 35da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com 36da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com // CADD t0, in0, in2 37da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com t0.Re = in0[0] + in2[0]; 38da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com t0.Im = in0[n] + in2[n]; 39da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com 40da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com // CSUB t1, in0, in2 41da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com t1.Re = in0[0] - in2[0]; 42da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com t1.Im = in0[n] - in2[n]; 43da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com 44da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com // CADD t2, in1, in3 45da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com t2.Re = in1[0] + in3[0]; 46da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com t2.Im = in1[n] + in3[n]; 47da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com 48da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com // CSUB t3, in1, in3 49da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com t3.Re = in1[0] - in3[0]; 50da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com t3.Im = in1[n] - in3[n]; 51da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com 52da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com // CADD out0, t0, t2 53da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com out0[0] = t0.Re + t2.Re; 54da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com out0[n] = t0.Im + t2.Im; 55da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com 56da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com // CSUB out2, t0, t2 57da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com out2[0] = t0.Re - t2.Re; 58da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com out2[n] = t0.Im - t2.Im; 59da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com 60da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com // CSUB_ADD_X out1, t1, t3 61da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com out1[0] = t1.Re - t3.Im; 62da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com out1[n] = t1.Im + t3.Re; 63da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com 64da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com // CADD_SUB_X out3, t1, t3 65da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com out3[0] = t1.Re + t3.Im; 66da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com out3[n] = t1.Im - t3.Re; 67da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com 68da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com out0 += 1; 69da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com } 70da04d4f8ef493ab7bf1fbdaffe206899f03681c2rtoy@google.com} 71