blob: 8f804ac3aedfd7833ac27006b5f031adbe550ee1 [file] [log] [blame]
/*
* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*
* This file was originally licensed as follows. It has been
* relicensed with permission from the copyright holders.
*/
/**
*
* File Name: armSP.h
* OpenMAX DL: v1.0.2
* Last Modified Revision: 7014
* Last Modified Date: Wed, 01 Aug 2007
*
* (c) Copyright 2007-2008 ARM Limited. All Rights Reserved.
*
*
*
* File: armSP.h
* Brief: Declares API's/Basic Data types used across the OpenMAX Signal Processing domain
*
*/
#ifndef _armSP_H_
#define _armSP_H_
#include <stdint.h>
#include "dl/api/omxtypes.h"
#ifdef __cplusplus
extern "C" {
#endif
/** FFT Specific declarations */
extern OMX_S32 armSP_FFT_S32TwiddleTable[1026];
extern OMX_F32 armSP_FFT_F32TwiddleTable[];
typedef struct ARMsFFTSpec_SC32_Tag
{
OMX_U32 N;
OMX_U16 *pBitRev;
OMX_SC32 *pTwiddle;
OMX_SC32 *pBuf;
}ARMsFFTSpec_SC32;
typedef struct ARMsFFTSpec_SC16_Tag
{
OMX_U32 N;
OMX_U16 *pBitRev;
OMX_SC16 *pTwiddle;
OMX_SC16 *pBuf;
}ARMsFFTSpec_SC16;
typedef struct ARMsFFTSpec_R_SC32_Tag
{
OMX_U32 N;
OMX_U16 *pBitRev;
OMX_SC32 *pTwiddle;
OMX_S32 *pBuf;
}ARMsFFTSpec_R_SC32;
typedef struct ARMsFFTSpec_R_SC16_Tag
{
OMX_U32 N;
OMX_U16 *pBitRev;
OMX_SC16 *pTwiddle;
OMX_S16 *pBuf;
} ARMsFFTSpec_R_SC16;
typedef struct ARMsFFTSpec_R_FC32_Tag
{
OMX_U32 N;
OMX_U16* pBitRev;
OMX_FC32* pTwiddle;
OMX_F32* pBuf;
} ARMsFFTSpec_R_FC32;
typedef struct ARMsFFTSpec_FC32_Tag
{
OMX_U32 N;
OMX_U16* pBitRev;
OMX_FC32* pTwiddle;
OMX_FC32* pBuf;
} ARMsFFTSpec_FC32;
/*
* Compute log2(x), where x must be a power of 2.
*/
static inline long fastlog2(long x) {
long out;
asm("clz %0,%1\n\t"
"sub %0, %0, #63\n\t"
"neg %0, %0\n\t"
: "=r"(out)
: "r"(x)
:);
return out;
}
/*
* Validate args. All pointers must be non-NULL; the source and
* destination pointers must be aligned on a 32-byte boundary; the
* FFT spec must have non-NULL pointers; and the FFT size must be
* within range.
*/
static inline int validateParametersFC32(const void* pSrc,
const void* pDst,
const ARMsFFTSpec_FC32* pFFTSpec) {
return pSrc && pDst && pFFTSpec && !(((uintptr_t)pSrc) & 31) &&
!(((uintptr_t)pDst) & 31) && pFFTSpec->pTwiddle && pFFTSpec->pBuf &&
(pFFTSpec->N >= 2) && (pFFTSpec->N <= (1 << TWIDDLE_TABLE_ORDER));
}
static inline int validateParametersF32(const void* pSrc,
const void* pDst,
const ARMsFFTSpec_R_FC32* pFFTSpec) {
return pSrc && pDst && pFFTSpec && !(((uintptr_t)pSrc) & 31) &&
!(((uintptr_t)pDst) & 31) && pFFTSpec->pTwiddle && pFFTSpec->pBuf &&
(pFFTSpec->N >= 2) && (pFFTSpec->N <= (1 << TWIDDLE_TABLE_ORDER));
}
#ifdef __cplusplus
}
#endif
#endif
/*End of File*/