diff options
Diffstat (limited to 'media/openmax_dl/dl/sp/src/armSP_FFT_CToC_FC32_Radix2_fs_unsafe_s.S')
| -rw-r--r-- | media/openmax_dl/dl/sp/src/armSP_FFT_CToC_FC32_Radix2_fs_unsafe_s.S | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/media/openmax_dl/dl/sp/src/armSP_FFT_CToC_FC32_Radix2_fs_unsafe_s.S b/media/openmax_dl/dl/sp/src/armSP_FFT_CToC_FC32_Radix2_fs_unsafe_s.S deleted file mode 100644 index 770848c623..0000000000 --- a/media/openmax_dl/dl/sp/src/armSP_FFT_CToC_FC32_Radix2_fs_unsafe_s.S +++ /dev/null @@ -1,134 +0,0 @@ -@// -@// 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 is a modification of armSP_FFT_CToC_SC32_Radix2_fs_unsafe_s.S -@// to support float instead of SC32. -@// - -@// -@// Description: -@// Compute the first stage of a Radix 2 DIT in-order out-of-place FFT -@// stage for a N point complex signal. -@// -@// - - -@// Include standard headers - -#include "dl/api/armCOMM_s.h" -#include "dl/api/omxtypes_s.h" - - -@// Import symbols required from other files -@// (For example tables) - - - - -@// Set debugging level -@//DEBUG_ON SETL {TRUE} - - - -@// Guarding implementation by the processor name - - - -@// Guarding implementation by the processor name - - -@//Input Registers - -#define pSrc r0 -#define pDst r2 -#define pTwiddle r1 -#define pPingPongBuf r5 -#define subFFTNum r6 -#define subFFTSize r7 - - -@//Output Registers - - -@//Local Scratch Registers - -#define pointStep r3 -#define outPointStep r3 -#define grpSize r4 -#define setCount r4 -#define step r8 -#define dstStep r8 - -@// Neon Registers - -#define dX0 D0 -#define dX1 D1 -#define dY0 D2 -#define dY1 D3 - - - .MACRO FFTSTAGE scaled, inverse, name - - @// Define stack arguments - - - @// update subFFTSize and subFFTNum into RN6 and RN7 for the next stage - - - MOV subFFTSize,#2 - LSR grpSize,subFFTNum,#1 - MOV subFFTNum,grpSize - - - @// pT0+1 increments pT0 by 8 bytes - @// pT0+pointStep = increment of 8*pointStep bytes = 4*grpSize bytes - @// Note: outPointStep = pointStep for firststage - @// Note: setCount = grpSize/2 (reuse the updated grpSize for setCount) - - MOV pointStep,grpSize,LSL #3 - RSB step,pointStep,#8 - - - @// Loop on the sets for grp zero - -grpZeroSetLoop\name : - - VLD1.F32 dX0,[pSrc],pointStep - VLD1.F32 dX1,[pSrc],step @// step = -pointStep + 8 - SUBS setCount,setCount,#1 - - VADD.F32 dY0,dX0,dX1 - VSUB.F32 dY1,dX0,dX1 - - VST1.F32 dY0,[pDst],outPointStep - @// dstStep = step = -pointStep + 8 - VST1.F32 dY1,[pDst],dstStep - - BGT grpZeroSetLoop\name - - - @// reset pSrc to pDst for the next stage - SUB pSrc,pDst,pointStep @// pDst -= 2*grpSize - MOV pDst,pPingPongBuf - - .endm - - - - M_START armSP_FFTFwd_CToC_FC32_Radix2_fs_OutOfPlace_unsafe,r4 - FFTSTAGE "FALSE","FALSE",fwd - M_END - - - - M_START armSP_FFTInv_CToC_FC32_Radix2_fs_OutOfPlace_unsafe,r4 - FFTSTAGE "FALSE","TRUE",inv - M_END - - .end |