199b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com/* 299b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. 399b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 499b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * Use of this source code is governed by a BSD-style license 599b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * that can be found in the LICENSE file in the root of the source 699b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * tree. An additional intellectual property rights grant can be found 799b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * in the file PATENTS. All contributing project authors may 899b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * be found in the AUTHORS file in the root of the source tree. 999b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 1099b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * This file was originally licensed as follows. It has been 1199b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * relicensed with permission from the copyright holders. 1299b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com */ 1399b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 1499b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com/** 1599b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 1699b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * File Name: omxSP_FFTGetBufSize_C_SC32.c 1799b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * OpenMAX DL: v1.0.2 1899b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * Last Modified Revision: 9468 1999b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * Last Modified Date: Thu, 03 Jan 2008 2099b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 2199b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved. 2299b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 2399b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 2499b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * Description: 2599b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * Compute the size of the specification structure required 2699b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com */ 2799b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 28bdf981cb383b7ec472ee86d2fedb53937285f894rtoy@google.com#include "dl/api/arm/armOMX.h" 29048e632be7693f6198bfdd54130a0220a2ccb5abrtoy@google.com#include "dl/api/omxtypes.h" 30048e632be7693f6198bfdd54130a0220a2ccb5abrtoy@google.com#include "dl/sp/api/armSP.h" 31048e632be7693f6198bfdd54130a0220a2ccb5abrtoy@google.com#include "dl/sp/api/omxSP.h" 3299b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 3399b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 3499b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com/** 3599b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * Function: omxSP_FFTGetBufSize_C_SC32 (2.2.4.1.6) 3699b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 3799b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * Description: 3899b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * These functions compute the size of the specification structure 3999b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * required for the length 2^order complex FFT and IFFT functions. The function 4099b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * <FFTGetBufSize_C_SC32> is used in conjunction with the 32-bit functions 4199b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * <FFTFwd_CToC_SC32_Sfs> and <FFTInv_CToC_SC32_Sfs>. 4299b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 4399b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * Input Arguments: 4499b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 4599b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * order - base-2 logarithm of the desired block length; valid in the range 4699b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * [0,12] 4799b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 4899b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * Output Arguments: 4999b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 5099b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * pSize - pointer to the number of bytes required for the specification 5199b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * structure 5299b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 5399b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * Return Value: 5499b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 5599b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * OMX_Sts_NoErr - no error 5699b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 5799b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * 5899b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com */ 5999b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 6099b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 6199b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.comOMXResult omxSP_FFTGetBufSize_C_SC32( 6299b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com OMX_INT order, 6399b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com OMX_INT *pSize) 6499b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com{ 6599b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 6699b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com OMX_INT N,twiddleSize; 6799b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 6899b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com /* Check for order zero */ 6999b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com if (order == 0) 7099b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com { 7199b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com *pSize = sizeof(ARMsFFTSpec_SC32); 7299b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com return OMX_Sts_NoErr; 7399b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com } 7499b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 7599b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 7699b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com N = 1 << order; 7799b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 7899b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com /*The max size of the twiddle table needed is 3N/4 for a radix-4 stage*/ 7999b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com twiddleSize = 3*N/4; 8099b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 8199b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com *pSize = sizeof(ARMsFFTSpec_SC32) 8299b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com /* N Twiddle factors */ 8399b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com + sizeof(OMX_SC32) * twiddleSize 8499b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com /* Ping Pong buffer */ 8599b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com + sizeof(OMX_SC32) * N 8699b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com + 62 ; /* Extra bytes to get 32 byte alignment of ptwiddle and pBuf */ 8799b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 8899b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com return OMX_Sts_NoErr; 8999b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com} 9099b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 9199b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com/***************************************************************************** 9299b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com * END OF FILE 9399b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com *****************************************************************************/ 9499b31ea5d0f4629ceddf4852f96757c9c73654artoy@google.com 95