Index: third_party/openmax_dl/dl/sp/src/omxSP_FFTInv_CCSToR_S32S16_Sfs_s.S |
diff --git a/third_party/openmax_dl/dl/sp/src/omxSP_FFTInv_CCSToR_S32S16_Sfs_s.S b/third_party/openmax_dl/dl/sp/src/omxSP_FFTInv_CCSToR_S32S16_Sfs_s.S |
new file mode 100644 |
index 0000000000000000000000000000000000000000..becc0327e7f6efe8c68e4ace5bbd43544e9b1881 |
--- /dev/null |
+++ b/third_party/openmax_dl/dl/sp/src/omxSP_FFTInv_CCSToR_S32S16_Sfs_s.S |
@@ -0,0 +1,146 @@ |
+@// |
+@// 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: omxSP_FFTInv_CCSToR_S32S16_Sfs_s.s |
+@// OpenMAX DL: v1.0.2 |
+@// Last Modified Revision: 7098 |
+@// Last Modified Date: Thu, 16 Aug 2007 |
+@// |
+@// (c) Copyright 2007-2008 ARM Limited. All Rights Reserved. |
+@// |
+@// |
+@// |
+@// Description: |
+@// Compute an inverse FFT for a 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) |
+ |
+ .extern omxSP_FFTInv_CCSToR_S32_Sfs |
+ |
+ |
+@// Set debugging level |
+@//DEBUG_ON SETL {TRUE} |
+ |
+ |
+ |
+@// Guarding implementation by the processor name |
+ |
+ |
+ |
+ @// Guarding implementation by the processor name |
+ |
+ |
+@// Import symbols required from other files |
+@// (For example tables) |
+ |
+ |
+@//Input Registers |
+ |
+#define pSrc r0 |
+#define pDst r1 |
+#define pFFTSpec r2 |
+#define scale r3 |
+ |
+ |
+@// Output registers |
+#define result r0 |
+ |
+ |
+#define N r6 |
+#define pOut r5 |
+#define pTmpDst r4 |
+ |
+ |
+@// Neon registers |
+ |
+#define dX0 D0.S32 |
+#define dX01 D1.S32 |
+#define qX0 Q0.S32 |
+#define dY0 D2.S16 |
+#define dY0S32 D2.S32 |
+ |
+ |
+ |
+ @// Allocate stack memory required by the function |
+ |
+ @// Write function header |
+ M_START omxSP_FFTInv_CCSToR_S32S16_Sfs,r11,d15 |
+ |
+ .set ARMsFFTSpec_N, 0 |
+ .set ARMsFFTSpec_pBitRev, 4 |
+ .set ARMsFFTSpec_pTwiddle, 8 |
+ .set ARMsFFTSpec_pBuf, 12 |
+ |
+ @// Define stack arguments |
+ |
+ @// Read the size from structure and take log |
+ LDR N, [pFFTSpec, #ARMsFFTSpec_N] |
+ |
+ @// Read other structure parameters |
+ @//LDR pTwiddle, [pFFTSpec, #ARMsFFTSpec_pTwiddle] |
+ LDR pOut, [pFFTSpec, #ARMsFFTSpec_pBuf] |
+ |
+ |
+ MOV pTmpDst,pDst |
+ ADD pDst,pOut,N, LSL #2 |
+ |
+ |
+ BL omxSP_FFTInv_CCSToR_S32_Sfs |
+ |
+ ADD pDst,pOut,N, LSL #2 |
+ |
+ CMP N,#2 |
+ BGT copyLoop |
+ BEQ copyS32ToS16 |
+ VLD1 dX0[0],[pDst] |
+ VQMOVN dY0,qX0 |
+ VST1 dY0[0],[pTmpDst] |
+ |
+ B End |
+ |
+copyS32ToS16: |
+ |
+ VLD1 dX0,[pDst] |
+ VQMOVN dY0,qX0 |
+ VST1 dY0S32[0],[pTmpDst] |
+ B End |
+ |
+copyLoop: |
+ |
+ VLD1 {dX0,dX01},[pDst]! |
+ SUBS N,N,#4 |
+ VQMOVN dY0,qX0 |
+ VST1 dY0,[pTmpDst]! |
+ |
+ BGT copyLoop |
+ |
+ |
+End: |
+ @// Set return value |
+ MOV result, #OMX_Sts_NoErr |
+ |
+ @// Write function tail |
+ M_END |
+ |
+ .end |