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Unified Diff: third_party/openmax_dl/dl/sp/src/armSP_FFT_CToC_SC16_Radix8_fs_unsafe_s.S

Issue 12317152: Add openmax dl routines for review. MUST NOT BE LANDED (Closed) Base URL: http://git.chromium.org/chromium/src.git@master
Patch Set: Created 7 years, 9 months ago
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« third_party/openmax_dl/dl/sp/src/armSP_FFT_CToC_SC16_Radix4_unsafe_s.S ('K') | « third_party/openmax_dl/dl/sp/src/armSP_FFT_CToC_SC16_Radix4_unsafe_s.S ('k') | third_party/openmax_dl/dl/sp/src/armSP_FFT_CToC_SC32_Radix2_fs_unsafe_s.S » ('j') | third_party/openmax_dl/dl/sp/src/omxSP_FFTInv_CToC_SC16_Sfs_s.S » ('J')
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Index: third_party/openmax_dl/dl/sp/src/armSP_FFT_CToC_SC16_Radix8_fs_unsafe_s.S
diff --git a/third_party/openmax_dl/dl/sp/src/armSP_FFT_CToC_SC16_Radix8_fs_unsafe_s.S b/third_party/openmax_dl/dl/sp/src/armSP_FFT_CToC_SC16_Radix8_fs_unsafe_s.S
new file mode 100644
index 0000000000000000000000000000000000000000..588c3197db90f1e65a859cfee3706e3720c82a81
--- /dev/null
+++ b/third_party/openmax_dl/dl/sp/src/armSP_FFT_CToC_SC16_Radix8_fs_unsafe_s.S
@@ -0,0 +1,619 @@
+@//
+@// 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_FFT_CToC_SC16_Radix8_fs_unsafe_s.s
+@// OpenMAX DL: v1.0.2
+@// Last Modified Revision: 7766
+@// Last Modified Date: Thu, 27 Sep 2007
+@//
+@// (c) Copyright 2007-2008 ARM Limited. All Rights Reserved.
+@//
+@//
+@//
+@// Description:
+@// Compute a first stage Radix 8 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 subFFTNum r6
+#define subFFTSize r7
+@// dest buffer for the next stage (not pSrc for first stage)
+#define pPingPongBuf r5
+
+
+@//Output Registers
+
+
+@//Local Scratch Registers
+
+#define grpSize r3
+@// Reuse grpSize as setCount
+#define setCount r3
+#define pointStep r4
+#define outPointStep r4
+#define setStep r8
+#define step1 r9
+#define step2 r10
+#define t0 r11
+
+
+@// Neon Registers
+
+#define dXr0 D14.S16
+#define dXi0 D15.S16
+#define dXr1 D2.S16
+#define dXi1 D3.S16
+#define dXr2 D4.S16
+#define dXi2 D5.S16
+#define dXr3 D6.S16
+#define dXi3 D7.S16
+#define dXr4 D8.S16
+#define dXi4 D9.S16
+#define dXr5 D10.S16
+#define dXi5 D11.S16
+#define dXr6 D12.S16
+#define dXi6 D13.S16
+#define dXr7 D0.S16
+#define dXi7 D1.S16
+#define qX0 Q7.S16
+#define qX1 Q1.S16
+#define qX2 Q2.S16
+#define qX3 Q3.S16
+#define qX4 Q4.S16
+#define qX5 Q5.S16
+#define qX6 Q6.S16
+#define qX7 Q0.S16
+
+#define dUr0 D16.S16
+#define dUi0 D17.S16
+#define dUr2 D18.S16
+#define dUi2 D19.S16
+#define dUr4 D20.S16
+#define dUi4 D21.S16
+#define dUr6 D22.S16
+#define dUi6 D23.S16
+#define dUr1 D24.S16
+#define dUi1 D25.S16
+#define dUr3 D26.S16
+#define dUi3 D27.S16
+#define dUr5 D28.S16
+#define dUi5 D29.S16
+@// reuse dXr7 and dXi7
+#define dUr7 D30.S16
+#define dUi7 D31.S16
+#define qU0 Q8.S16
+#define qU1 Q12.S16
+#define qU2 Q9.S16
+#define qU3 Q13.S16
+#define qU4 Q10.S16
+#define qU5 Q14.S16
+#define qU6 Q11.S16
+#define qU7 Q15.S16
+
+
+
+#define dVr0 D24.S16
+#define dVi0 D25.S16
+#define dVr2 D26.S16
+#define dVi2 D27.S16
+#define dVr4 D28.S16
+#define dVi4 D29.S16
+#define dVr6 D30.S16
+#define dVi6 D31.S16
+#define dVr1 D16.S16
+#define dVi1 D17.S16
+#define dVr3 D18.S16
+#define dVi3 D19.S16
+#define dVr5 D20.S16
+#define dVi5 D21.S16
+@// reuse dUi7
+#define dVr7 D22.S16
+@// reuse dUr7
+#define dVi7 D23.S16
+#define qV0 Q12.S16
+#define qV1 Q8.S16
+#define qV2 Q13.S16
+#define qV3 Q9.S16
+#define qV4 Q14.S16
+#define qV5 Q10.S16
+#define qV6 Q15.S16
+#define qV7 Q11.S16
+
+
+
+#define dYr0 D16.S16
+#define dYi0 D17.S16
+#define dYr2 D18.S16
+#define dYi2 D19.S16
+#define dYr4 D20.S16
+#define dYi4 D21.S16
+#define dYr6 D22.S16
+#define dYi6 D23.S16
+#define dYr1 D24.S16
+#define dYi1 D25.S16
+#define dYr3 D26.S16
+#define dYi3 D27.S16
+#define dYr5 D28.S16
+#define dYi5 D29.S16
+@// reuse dYr4 and dYi4
+#define dYr7 D30.S16
+#define dYi7 D31.S16
+#define qY0 Q8.S16
+#define qY1 Q12.S16
+#define qY2 Q9.S16
+#define qY3 Q13.S16
+#define qY4 Q10.S16
+#define qY5 Q14.S16
+#define qY6 Q11.S16
+#define qY7 Q15.S16
+
+
+#define dT0 D0.S16
+#define dT1 D1.S16
+
+
+@// Define constants
+ .set ONEBYSQRT2, 0x00005A82 @// Q15 format
+
+
+ .MACRO FFTSTAGE scaled, inverse , name
+
+ @// Define stack arguments
+
+ @// Update pSubFFTSize and pSubFFTNum regs
+ MOV subFFTSize,#8 @// subFFTSize = 1 for the first stage
+ LDR t0,=ONEBYSQRT2 @// t0=(1/sqrt(2)) as Q15 format
+
+ @// Note: setCount = subFFTNum/8 (reuse the grpSize reg for setCount)
+ LSR grpSize,subFFTNum,#3
+ MOV subFFTNum,grpSize
+
+
+ @// pT0+1 increments pT0 by 4 bytes
+ @// pT0+pointStep = increment of 4*pointStep bytes = grpSize/2 bytes
+ @// Note: outPointStep = pointStep for firststage
+
+ MOV pointStep,grpSize,LSL #2
+
+
+ @// Calculate the step of input data for the next set
+ @//MOV step1,pointStep,LSL #1 @// step1 = 2*pointStep
+ VLD2 {dXr0,dXi0},[pSrc :128],pointStep @// data[0]
+ MOV step1,grpSize,LSL #3
+
+ MOV step2,pointStep,LSL #3
+ VLD2 {dXr1,dXi1},[pSrc :128],pointStep @// data[1]
+ SUB step2,step2,pointStep @// step2 = 7*pointStep
+ RSB setStep,step2,#16 @// setStep = - 7*pointStep+16
+
+
+
+ VLD2 {dXr2,dXi2},[pSrc :128],pointStep @// data[2]
+ VLD2 {dXr3,dXi3},[pSrc :128],pointStep @// data[3]
+ VLD2 {dXr4,dXi4},[pSrc :128],pointStep @// data[4]
+ VLD2 {dXr5,dXi5},[pSrc :128],pointStep @// data[5]
+ VLD2 {dXr6,dXi6},[pSrc :128],pointStep @// data[6]
+ VLD2 {dXr7,dXi7},[pSrc :128],setStep @// data[7] & update pSrc for the next set
+ @// setStep = -7*pointStep + 16
+ @// grp = 0 a special case since all the twiddle factors are 1
+ @// Loop on the sets : 4 sets at a time
+
+grpZeroSetLoop\name:
+
+ @// Decrement setcount
+ SUBS setCount,setCount,#4 @// decrement the set loop counter
+
+
+ .ifeqs "\scaled", "TRUE"
+ @// finish first stage of 8 point FFT
+
+ VHADD qU0,qX0,qX4
+ VHADD qU2,qX1,qX5
+ VHADD qU4,qX2,qX6
+ VHADD qU6,qX3,qX7
+
+ @// finish second stage of 8 point FFT
+
+ VHADD qV0,qU0,qU4
+ VHSUB qV2,qU0,qU4
+ VHADD qV4,qU2,qU6
+ VHSUB qV6,qU2,qU6
+
+ @// finish third stage of 8 point FFT
+
+ VHADD qY0,qV0,qV4
+ VHSUB qY4,qV0,qV4
+ VST2 {dYr0,dYi0},[pDst :128],step1 @// store y0
+
+ .ifeqs "\inverse", "TRUE"
+
+ VHSUB dYr2,dVr2,dVi6
+ VHADD dYi2,dVi2,dVr6
+
+ VHADD dYr6,dVr2,dVi6
+ VST2 {dYr2,dYi2},[pDst :128],step1 @// store y2
+ VHSUB dYi6,dVi2,dVr6
+
+ VHSUB qU1,qX0,qX4
+ VST2 {dYr4,dYi4},[pDst :128],step1 @// store y4
+
+ VHSUB qU3,qX1,qX5
+ VHSUB qU5,qX2,qX6
+ VST2 {dYr6,dYi6},[pDst :128],step1 @// store y6
+
+ .ELSE
+
+ VHADD dYr6,dVr2,dVi6
+ VHSUB dYi6,dVi2,dVr6
+
+ VHSUB dYr2,dVr2,dVi6
+ VST2 {dYr6,dYi6},[pDst :128],step1 @// store y2
+ VHADD dYi2,dVi2,dVr6
+
+
+ VHSUB qU1,qX0,qX4
+ VST2 {dYr4,dYi4},[pDst :128],step1 @// store y4
+ VHSUB qU3,qX1,qX5
+ VHSUB qU5,qX2,qX6
+ VST2 {dYr2,dYi2},[pDst :128],step1 @// store y6
+
+
+ .ENDIF
+
+ @// finish first stage of 8 point FFT
+
+ VHSUB qU7,qX3,qX7
+ VMOV dT0[0],t0
+
+ @// finish second stage of 8 point FFT
+
+ VHSUB dVr1,dUr1,dUi5
+ VLD2 {dXr0,dXi0},[pSrc :128],pointStep @// data[0] for next iteration
+ VHADD dVi1,dUi1,dUr5
+ VHADD dVr3,dUr1,dUi5
+ VLD2 {dXr1,dXi1},[pSrc :128],pointStep @// data[1]
+ VHSUB dVi3,dUi1,dUr5
+
+ VHSUB dVr5,dUr3,dUi7
+ VLD2 {dXr2,dXi2},[pSrc :128],pointStep @// data[2]
+ VHADD dVi5,dUi3,dUr7
+ VHADD dVr7,dUr3,dUi7
+ VLD2 {dXr3,dXi3},[pSrc :128],pointStep @// data[3]
+ VHSUB dVi7,dUi3,dUr7
+
+ @// finish third stage of 8 point FFT
+
+ .ifeqs "\inverse", "TRUE"
+
+ @// calculate a*v5
+ VQRDMULH dT1,dVr5,dT0[0] @// use dVi0 for dT1
+ VLD2 {dXr4,dXi4},[pSrc :128],pointStep @// data[4]
+ VQRDMULH dVi5,dVi5,dT0[0]
+
+ VLD2 {dXr5,dXi5},[pSrc :128],pointStep @// data[5]
+ VSUB dVr5,dT1,dVi5 @// a * V5
+ VADD dVi5,dT1,dVi5
+
+ VLD2 {dXr6,dXi6},[pSrc :128],pointStep @// data[6]
+
+ @// calculate b*v7
+ VQRDMULH dT1,dVr7,dT0[0]
+ VQRDMULH dVi7,dVi7,dT0[0]
+
+ VHADD qY1,qV1,qV5
+ VHSUB qY5,qV1,qV5
+
+
+ VADD dVr7,dT1,dVi7 @// b * V7
+ VSUB dVi7,dVi7,dT1
+ SUB pDst, pDst, step2 @// set pDst to y1
+
+ VLD2 {dXr7,dXi7},[pSrc :128],setStep @// data[7]
aedla 2013/06/26 12:52:17 Last iteration 16-byte OOB read here,
+
+
+ VHSUB dYr3,dVr3,dVr7
+ VHSUB dYi3,dVi3,dVi7
+ VST2 {dYr1,dYi1},[pDst :128],step1 @// store y1
+ VHADD dYr7,dVr3,dVr7
+ VHADD dYi7,dVi3,dVi7
+
+
+ VST2 {dYr3,dYi3},[pDst :128],step1 @// store y3
+ VST2 {dYr5,dYi5},[pDst :128],step1 @// store y5
+#if 0
+ VST2 {dYr7,dYi7},[pDst :128],#16 @// store y7
+#else
+ VST2 {dYr7,dYi7},[pDst :128]! @// store y7
+#endif
+ .ELSE
+
+ @// calculate b*v7
+ VQRDMULH dT1,dVr7,dT0[0]
+ VLD2 {dXr4,dXi4},[pSrc :128],pointStep @// data[4]
+ VQRDMULH dVi7,dVi7,dT0[0]
+
+ VLD2 {dXr5,dXi5},[pSrc :128],pointStep @// data[5]
+ VADD dVr7,dT1,dVi7 @// b * V7
+ VSUB dVi7,dVi7,dT1
+
+ VLD2 {dXr6,dXi6},[pSrc :128],pointStep @// data[6]
+
+ @// calculate a*v5
+ VQRDMULH dT1,dVr5,dT0[0] @// use dVi0 for dT1
+ VQRDMULH dVi5,dVi5,dT0[0]
+
+ VHADD dYr7,dVr3,dVr7
+ VHADD dYi7,dVi3,dVi7
+ SUB pDst, pDst, step2 @// set pDst to y1
+
+ VSUB dVr5,dT1,dVi5 @// a * V5
+ VADD dVi5,dT1,dVi5
+ VLD2 {dXr7,dXi7},[pSrc :128],setStep @// data[7]
aedla 2013/06/26 12:52:17 here,
+
+ VHSUB qY5,qV1,qV5
+
+ VHSUB dYr3,dVr3,dVr7
+ VST2 {dYr7,dYi7},[pDst :128],step1 @// store y1
+ VHSUB dYi3,dVi3,dVi7
+ VHADD qY1,qV1,qV5
+
+
+ VST2 {dYr5,dYi5},[pDst :128],step1 @// store y3
+ VST2 {dYr3,dYi3},[pDst :128],step1 @// store y5
+#if 0
+ VST2 {dYr1,dYi1},[pDst :128],#16 @// store y7
+#else
+ VST2 {dYr1,dYi1},[pDst :128]! @// store y7
+#endif
+
+ .ENDIF
+
+
+
+ .ELSE
+ @// finish first stage of 8 point FFT
+
+ VADD qU0,qX0,qX4
+ VADD qU2,qX1,qX5
+ VADD qU4,qX2,qX6
+ VADD qU6,qX3,qX7
+
+ @// finish second stage of 8 point FFT
+
+ VADD qV0,qU0,qU4
+ VSUB qV2,qU0,qU4
+ VADD qV4,qU2,qU6
+ VSUB qV6,qU2,qU6
+
+ @// finish third stage of 8 point FFT
+
+ VADD qY0,qV0,qV4
+ VSUB qY4,qV0,qV4
+ VST2 {dYr0,dYi0},[pDst :128],step1 @// store y0
+
+ .ifeqs "\inverse", "TRUE"
+
+ VSUB dYr2,dVr2,dVi6
+ VADD dYi2,dVi2,dVr6
+
+ VADD dYr6,dVr2,dVi6
+ VST2 {dYr2,dYi2},[pDst :128],step1 @// store y2
+ VSUB dYi6,dVi2,dVr6
+
+ VSUB qU1,qX0,qX4
+ VST2 {dYr4,dYi4},[pDst :128],step1 @// store y4
+
+ VSUB qU3,qX1,qX5
+ VSUB qU5,qX2,qX6
+ VST2 {dYr6,dYi6},[pDst :128],step1 @// store y6
+
+ .ELSE
+
+ VADD dYr6,dVr2,dVi6
+ VSUB dYi6,dVi2,dVr6
+
+ VSUB dYr2,dVr2,dVi6
+ VST2 {dYr6,dYi6},[pDst :128],step1 @// store y2
+ VADD dYi2,dVi2,dVr6
+
+
+ VSUB qU1,qX0,qX4
+ VST2 {dYr4,dYi4},[pDst :128],step1 @// store y4
+ VSUB qU3,qX1,qX5
+ VSUB qU5,qX2,qX6
+ VST2 {dYr2,dYi2},[pDst :128],step1 @// store y6
+
+
+ .ENDIF
+
+ @// finish first stage of 8 point FFT
+
+ VSUB qU7,qX3,qX7
+ VMOV dT0[0],t0
+
+ @// finish second stage of 8 point FFT
+
+ VSUB dVr1,dUr1,dUi5
+ VLD2 {dXr0,dXi0},[pSrc :128],pointStep @// data[0] for next iteration
+ VADD dVi1,dUi1,dUr5
+ VADD dVr3,dUr1,dUi5
+ VLD2 {dXr1,dXi1},[pSrc :128],pointStep @// data[1]
+ VSUB dVi3,dUi1,dUr5
+
+ VSUB dVr5,dUr3,dUi7
+ VLD2 {dXr2,dXi2},[pSrc :128],pointStep @// data[2]
+ VADD dVi5,dUi3,dUr7
+ VADD dVr7,dUr3,dUi7
+ VLD2 {dXr3,dXi3},[pSrc :128],pointStep @// data[3]
+ VSUB dVi7,dUi3,dUr7
+
+ @// finish third stage of 8 point FFT
+
+ .ifeqs "\inverse", "TRUE"
+
+ @// calculate a*v5
+ VQRDMULH dT1,dVr5,dT0[0] @// use dVi0 for dT1
+ VLD2 {dXr4,dXi4},[pSrc :128],pointStep @// data[4]
+ VQRDMULH dVi5,dVi5,dT0[0]
+
+ VLD2 {dXr5,dXi5},[pSrc :128],pointStep @// data[5]
+ VSUB dVr5,dT1,dVi5 @// a * V5
+ VADD dVi5,dT1,dVi5
+
+ VLD2 {dXr6,dXi6},[pSrc :128],pointStep @// data[6]
+
+ @// calculate b*v7
+ VQRDMULH dT1,dVr7,dT0[0]
+ VQRDMULH dVi7,dVi7,dT0[0]
+
+ VADD qY1,qV1,qV5
+ VSUB qY5,qV1,qV5
+
+
+ VADD dVr7,dT1,dVi7 @// b * V7
+ VSUB dVi7,dVi7,dT1
+ SUB pDst, pDst, step2 @// set pDst to y1
+
+ VLD2 {dXr7,dXi7},[pSrc :128],setStep @// data[7]
aedla 2013/06/26 12:52:17 here,
+
+
+ VSUB dYr3,dVr3,dVr7
+ VSUB dYi3,dVi3,dVi7
+ VST2 {dYr1,dYi1},[pDst :128],step1 @// store y1
+ VADD dYr7,dVr3,dVr7
+ VADD dYi7,dVi3,dVi7
+
+
+ VST2 {dYr3,dYi3},[pDst :128],step1 @// store y3
+ VST2 {dYr5,dYi5},[pDst :128],step1 @// store y5
+#if 0
+ VST2 {dYr7,dYi7},[pDst :128],#16 @// store y7
+#else
+ VST2 {dYr7,dYi7},[pDst :128]! @// store y7
+#endif
+ .ELSE
+
+ @// calculate b*v7
+ VQRDMULH dT1,dVr7,dT0[0]
+ VLD2 {dXr4,dXi4},[pSrc :128],pointStep @// data[4]
+ VQRDMULH dVi7,dVi7,dT0[0]
+
+ VLD2 {dXr5,dXi5},[pSrc :128],pointStep @// data[5]
+ VADD dVr7,dT1,dVi7 @// b * V7
+ VSUB dVi7,dVi7,dT1
+
+ VLD2 {dXr6,dXi6},[pSrc :128],pointStep @// data[6]
+
+ @// calculate a*v5
+ VQRDMULH dT1,dVr5,dT0[0] @// use dVi0 for dT1
+ VQRDMULH dVi5,dVi5,dT0[0]
+
+ VADD dYr7,dVr3,dVr7
+ VADD dYi7,dVi3,dVi7
+ SUB pDst, pDst, step2 @// set pDst to y1
+
+ VSUB dVr5,dT1,dVi5 @// a * V5
+ VADD dVi5,dT1,dVi5
+ VLD2 {dXr7,dXi7},[pSrc :128],setStep @// data[7]
aedla 2013/06/26 12:52:17 and here.
+
+ VSUB qY5,qV1,qV5
+
+ VSUB dYr3,dVr3,dVr7
+ VST2 {dYr7,dYi7},[pDst :128],step1 @// store y1
+ VSUB dYi3,dVi3,dVi7
+ VADD qY1,qV1,qV5
+
+
+ VST2 {dYr5,dYi5},[pDst :128],step1 @// store y3
+ VST2 {dYr3,dYi3},[pDst :128],step1 @// store y5
+#if 0
+ VST2 {dYr1,dYi1},[pDst :128],#16 @// store y7
+#else
+ VST2 {dYr1,dYi1},[pDst :128]! @// store y7
+#endif
+
+ .ENDIF
+
+
+ .ENDIF
+
+ SUB pDst, pDst, step2 @// update pDst for the next set
+ BGT grpZeroSetLoop\name
+
+
+ @// reset pSrc to pDst for the next stage
+ SUB pSrc,pDst,pointStep @// pDst -= 2*grpSize
+ MOV pDst,pPingPongBuf
+
+
+
+ .endm
+
+
+ @// Allocate stack memory required by the function
+
+
+ M_START armSP_FFTFwd_CToC_SC16_Radix8_fs_OutOfPlace_unsafe,r4
+ FFTSTAGE "FALSE","FALSE",FWD
+ M_END
+
+
+ M_START armSP_FFTInv_CToC_SC16_Radix8_fs_OutOfPlace_unsafe,r4
+ FFTSTAGE "FALSE","TRUE",INV
+ M_END
+
+
+ M_START armSP_FFTFwd_CToC_SC16_Sfs_Radix8_fs_OutOfPlace_unsafe,r4
+ FFTSTAGE "TRUE","FALSE",FWDSFS
+ M_END
+
+
+ M_START armSP_FFTInv_CToC_SC16_Sfs_Radix8_fs_OutOfPlace_unsafe,r4
+ FFTSTAGE "TRUE","TRUE",INVSFS
+ M_END
+
+
+
+
+
+ .END
« third_party/openmax_dl/dl/sp/src/armSP_FFT_CToC_SC16_Radix4_unsafe_s.S ('K') | « third_party/openmax_dl/dl/sp/src/armSP_FFT_CToC_SC16_Radix4_unsafe_s.S ('k') | third_party/openmax_dl/dl/sp/src/armSP_FFT_CToC_SC32_Radix2_fs_unsafe_s.S » ('j') | third_party/openmax_dl/dl/sp/src/omxSP_FFTInv_CToC_SC16_Sfs_s.S » ('J')

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