bcec8b0b21
This is from the upstream library commit id 3326535126e435f1ba647885ce43a8f0f3d317eb, corresponding to Chromium 88.0.4290.1.
376 lines
16 KiB
C
376 lines
16 KiB
C
/*
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* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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/*
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* This file contains the implementation of function
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* WebRtcSpl_MaxAbsValueW16()
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*
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* The description header can be found in signal_processing_library.h.
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*
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*/
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#include "rtc_base/checks.h"
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#include "common_audio/signal_processing/include/signal_processing_library.h"
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// Maximum absolute value of word16 vector.
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int16_t WebRtcSpl_MaxAbsValueW16_mips(const int16_t* vector, size_t length) {
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int32_t totMax = 0;
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int32_t tmp32_0, tmp32_1, tmp32_2, tmp32_3;
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size_t i, loop_size;
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RTC_DCHECK_GT(length, 0);
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#if defined(MIPS_DSP_R1)
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const int32_t* tmpvec32 = (int32_t*)vector;
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loop_size = length >> 4;
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for (i = 0; i < loop_size; i++) {
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__asm__ volatile (
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"lw %[tmp32_0], 0(%[tmpvec32]) \n\t"
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"lw %[tmp32_1], 4(%[tmpvec32]) \n\t"
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"lw %[tmp32_2], 8(%[tmpvec32]) \n\t"
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"lw %[tmp32_3], 12(%[tmpvec32]) \n\t"
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"absq_s.ph %[tmp32_0], %[tmp32_0] \n\t"
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"absq_s.ph %[tmp32_1], %[tmp32_1] \n\t"
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"cmp.lt.ph %[totMax], %[tmp32_0] \n\t"
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"pick.ph %[totMax], %[tmp32_0], %[totMax] \n\t"
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"lw %[tmp32_0], 16(%[tmpvec32]) \n\t"
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"absq_s.ph %[tmp32_2], %[tmp32_2] \n\t"
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"cmp.lt.ph %[totMax], %[tmp32_1] \n\t"
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"pick.ph %[totMax], %[tmp32_1], %[totMax] \n\t"
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"lw %[tmp32_1], 20(%[tmpvec32]) \n\t"
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"absq_s.ph %[tmp32_3], %[tmp32_3] \n\t"
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"cmp.lt.ph %[totMax], %[tmp32_2] \n\t"
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"pick.ph %[totMax], %[tmp32_2], %[totMax] \n\t"
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"lw %[tmp32_2], 24(%[tmpvec32]) \n\t"
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"cmp.lt.ph %[totMax], %[tmp32_3] \n\t"
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"pick.ph %[totMax], %[tmp32_3], %[totMax] \n\t"
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"lw %[tmp32_3], 28(%[tmpvec32]) \n\t"
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"absq_s.ph %[tmp32_0], %[tmp32_0] \n\t"
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"absq_s.ph %[tmp32_1], %[tmp32_1] \n\t"
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"cmp.lt.ph %[totMax], %[tmp32_0] \n\t"
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"pick.ph %[totMax], %[tmp32_0], %[totMax] \n\t"
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"absq_s.ph %[tmp32_2], %[tmp32_2] \n\t"
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"cmp.lt.ph %[totMax], %[tmp32_1] \n\t"
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"pick.ph %[totMax], %[tmp32_1], %[totMax] \n\t"
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"absq_s.ph %[tmp32_3], %[tmp32_3] \n\t"
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"cmp.lt.ph %[totMax], %[tmp32_2] \n\t"
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"pick.ph %[totMax], %[tmp32_2], %[totMax] \n\t"
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"cmp.lt.ph %[totMax], %[tmp32_3] \n\t"
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"pick.ph %[totMax], %[tmp32_3], %[totMax] \n\t"
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"addiu %[tmpvec32], %[tmpvec32], 32 \n\t"
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: [tmp32_0] "=&r" (tmp32_0), [tmp32_1] "=&r" (tmp32_1),
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[tmp32_2] "=&r" (tmp32_2), [tmp32_3] "=&r" (tmp32_3),
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[totMax] "+r" (totMax), [tmpvec32] "+r" (tmpvec32)
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:
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: "memory"
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);
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}
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__asm__ volatile (
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"rotr %[tmp32_0], %[totMax], 16 \n\t"
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"cmp.lt.ph %[totMax], %[tmp32_0] \n\t"
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"pick.ph %[totMax], %[tmp32_0], %[totMax] \n\t"
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"packrl.ph %[totMax], $0, %[totMax] \n\t"
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: [tmp32_0] "=&r" (tmp32_0), [totMax] "+r" (totMax)
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:
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);
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loop_size = length & 0xf;
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for (i = 0; i < loop_size; i++) {
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__asm__ volatile (
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"lh %[tmp32_0], 0(%[tmpvec32]) \n\t"
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"addiu %[tmpvec32], %[tmpvec32], 2 \n\t"
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"absq_s.w %[tmp32_0], %[tmp32_0] \n\t"
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"slt %[tmp32_1], %[totMax], %[tmp32_0] \n\t"
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"movn %[totMax], %[tmp32_0], %[tmp32_1] \n\t"
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: [tmp32_0] "=&r" (tmp32_0), [tmp32_1] "=&r" (tmp32_1),
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[tmpvec32] "+r" (tmpvec32), [totMax] "+r" (totMax)
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:
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: "memory"
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);
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}
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#else // #if defined(MIPS_DSP_R1)
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int32_t v16MaxMax = WEBRTC_SPL_WORD16_MAX;
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int32_t r, r1, r2, r3;
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const int16_t* tmpvector = vector;
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loop_size = length >> 4;
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for (i = 0; i < loop_size; i++) {
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__asm__ volatile (
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"lh %[tmp32_0], 0(%[tmpvector]) \n\t"
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"lh %[tmp32_1], 2(%[tmpvector]) \n\t"
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"lh %[tmp32_2], 4(%[tmpvector]) \n\t"
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"lh %[tmp32_3], 6(%[tmpvector]) \n\t"
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"abs %[tmp32_0], %[tmp32_0] \n\t"
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"abs %[tmp32_1], %[tmp32_1] \n\t"
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"abs %[tmp32_2], %[tmp32_2] \n\t"
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"abs %[tmp32_3], %[tmp32_3] \n\t"
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"slt %[r], %[totMax], %[tmp32_0] \n\t"
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"movn %[totMax], %[tmp32_0], %[r] \n\t"
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"slt %[r1], %[totMax], %[tmp32_1] \n\t"
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"movn %[totMax], %[tmp32_1], %[r1] \n\t"
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"slt %[r2], %[totMax], %[tmp32_2] \n\t"
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"movn %[totMax], %[tmp32_2], %[r2] \n\t"
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"slt %[r3], %[totMax], %[tmp32_3] \n\t"
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"movn %[totMax], %[tmp32_3], %[r3] \n\t"
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"lh %[tmp32_0], 8(%[tmpvector]) \n\t"
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"lh %[tmp32_1], 10(%[tmpvector]) \n\t"
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"lh %[tmp32_2], 12(%[tmpvector]) \n\t"
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"lh %[tmp32_3], 14(%[tmpvector]) \n\t"
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"abs %[tmp32_0], %[tmp32_0] \n\t"
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"abs %[tmp32_1], %[tmp32_1] \n\t"
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"abs %[tmp32_2], %[tmp32_2] \n\t"
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"abs %[tmp32_3], %[tmp32_3] \n\t"
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"slt %[r], %[totMax], %[tmp32_0] \n\t"
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"movn %[totMax], %[tmp32_0], %[r] \n\t"
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"slt %[r1], %[totMax], %[tmp32_1] \n\t"
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"movn %[totMax], %[tmp32_1], %[r1] \n\t"
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"slt %[r2], %[totMax], %[tmp32_2] \n\t"
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"movn %[totMax], %[tmp32_2], %[r2] \n\t"
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"slt %[r3], %[totMax], %[tmp32_3] \n\t"
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"movn %[totMax], %[tmp32_3], %[r3] \n\t"
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"lh %[tmp32_0], 16(%[tmpvector]) \n\t"
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"lh %[tmp32_1], 18(%[tmpvector]) \n\t"
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"lh %[tmp32_2], 20(%[tmpvector]) \n\t"
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"lh %[tmp32_3], 22(%[tmpvector]) \n\t"
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"abs %[tmp32_0], %[tmp32_0] \n\t"
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"abs %[tmp32_1], %[tmp32_1] \n\t"
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"abs %[tmp32_2], %[tmp32_2] \n\t"
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"abs %[tmp32_3], %[tmp32_3] \n\t"
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"slt %[r], %[totMax], %[tmp32_0] \n\t"
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"movn %[totMax], %[tmp32_0], %[r] \n\t"
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"slt %[r1], %[totMax], %[tmp32_1] \n\t"
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"movn %[totMax], %[tmp32_1], %[r1] \n\t"
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"slt %[r2], %[totMax], %[tmp32_2] \n\t"
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"movn %[totMax], %[tmp32_2], %[r2] \n\t"
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"slt %[r3], %[totMax], %[tmp32_3] \n\t"
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"movn %[totMax], %[tmp32_3], %[r3] \n\t"
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"lh %[tmp32_0], 24(%[tmpvector]) \n\t"
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"lh %[tmp32_1], 26(%[tmpvector]) \n\t"
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"lh %[tmp32_2], 28(%[tmpvector]) \n\t"
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"lh %[tmp32_3], 30(%[tmpvector]) \n\t"
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"abs %[tmp32_0], %[tmp32_0] \n\t"
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"abs %[tmp32_1], %[tmp32_1] \n\t"
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"abs %[tmp32_2], %[tmp32_2] \n\t"
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"abs %[tmp32_3], %[tmp32_3] \n\t"
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"slt %[r], %[totMax], %[tmp32_0] \n\t"
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"movn %[totMax], %[tmp32_0], %[r] \n\t"
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"slt %[r1], %[totMax], %[tmp32_1] \n\t"
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"movn %[totMax], %[tmp32_1], %[r1] \n\t"
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"slt %[r2], %[totMax], %[tmp32_2] \n\t"
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"movn %[totMax], %[tmp32_2], %[r2] \n\t"
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"slt %[r3], %[totMax], %[tmp32_3] \n\t"
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"movn %[totMax], %[tmp32_3], %[r3] \n\t"
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"addiu %[tmpvector], %[tmpvector], 32 \n\t"
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: [tmp32_0] "=&r" (tmp32_0), [tmp32_1] "=&r" (tmp32_1),
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[tmp32_2] "=&r" (tmp32_2), [tmp32_3] "=&r" (tmp32_3),
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[totMax] "+r" (totMax), [r] "=&r" (r), [tmpvector] "+r" (tmpvector),
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[r1] "=&r" (r1), [r2] "=&r" (r2), [r3] "=&r" (r3)
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:
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: "memory"
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);
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}
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loop_size = length & 0xf;
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for (i = 0; i < loop_size; i++) {
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__asm__ volatile (
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"lh %[tmp32_0], 0(%[tmpvector]) \n\t"
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"addiu %[tmpvector], %[tmpvector], 2 \n\t"
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"abs %[tmp32_0], %[tmp32_0] \n\t"
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"slt %[tmp32_1], %[totMax], %[tmp32_0] \n\t"
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"movn %[totMax], %[tmp32_0], %[tmp32_1] \n\t"
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: [tmp32_0] "=&r" (tmp32_0), [tmp32_1] "=&r" (tmp32_1),
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[tmpvector] "+r" (tmpvector), [totMax] "+r" (totMax)
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:
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: "memory"
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);
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}
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__asm__ volatile (
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"slt %[r], %[v16MaxMax], %[totMax] \n\t"
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"movn %[totMax], %[v16MaxMax], %[r] \n\t"
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: [totMax] "+r" (totMax), [r] "=&r" (r)
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: [v16MaxMax] "r" (v16MaxMax)
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);
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#endif // #if defined(MIPS_DSP_R1)
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return (int16_t)totMax;
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}
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#if defined(MIPS_DSP_R1_LE)
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// Maximum absolute value of word32 vector. Version for MIPS platform.
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int32_t WebRtcSpl_MaxAbsValueW32_mips(const int32_t* vector, size_t length) {
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// Use uint32_t for the local variables, to accommodate the return value
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// of abs(0x80000000), which is 0x80000000.
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uint32_t absolute = 0, maximum = 0;
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int tmp1 = 0, max_value = 0x7fffffff;
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RTC_DCHECK_GT(length, 0);
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__asm__ volatile (
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".set push \n\t"
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".set noreorder \n\t"
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"1: \n\t"
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"lw %[absolute], 0(%[vector]) \n\t"
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"absq_s.w %[absolute], %[absolute] \n\t"
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"addiu %[length], %[length], -1 \n\t"
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"slt %[tmp1], %[maximum], %[absolute] \n\t"
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"movn %[maximum], %[absolute], %[tmp1] \n\t"
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"bgtz %[length], 1b \n\t"
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" addiu %[vector], %[vector], 4 \n\t"
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"slt %[tmp1], %[max_value], %[maximum] \n\t"
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"movn %[maximum], %[max_value], %[tmp1] \n\t"
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".set pop \n\t"
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: [tmp1] "=&r" (tmp1), [maximum] "+r" (maximum), [absolute] "+r" (absolute)
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: [vector] "r" (vector), [length] "r" (length), [max_value] "r" (max_value)
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: "memory"
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);
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return (int32_t)maximum;
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}
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#endif // #if defined(MIPS_DSP_R1_LE)
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// Maximum value of word16 vector. Version for MIPS platform.
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int16_t WebRtcSpl_MaxValueW16_mips(const int16_t* vector, size_t length) {
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int16_t maximum = WEBRTC_SPL_WORD16_MIN;
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int tmp1;
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int16_t value;
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RTC_DCHECK_GT(length, 0);
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__asm__ volatile (
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".set push \n\t"
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".set noreorder \n\t"
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"1: \n\t"
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"lh %[value], 0(%[vector]) \n\t"
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"addiu %[length], %[length], -1 \n\t"
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"slt %[tmp1], %[maximum], %[value] \n\t"
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"movn %[maximum], %[value], %[tmp1] \n\t"
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"bgtz %[length], 1b \n\t"
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" addiu %[vector], %[vector], 2 \n\t"
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".set pop \n\t"
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: [tmp1] "=&r" (tmp1), [maximum] "+r" (maximum), [value] "=&r" (value)
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: [vector] "r" (vector), [length] "r" (length)
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: "memory"
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);
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return maximum;
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}
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// Maximum value of word32 vector. Version for MIPS platform.
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int32_t WebRtcSpl_MaxValueW32_mips(const int32_t* vector, size_t length) {
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int32_t maximum = WEBRTC_SPL_WORD32_MIN;
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int tmp1, value;
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RTC_DCHECK_GT(length, 0);
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__asm__ volatile (
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".set push \n\t"
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".set noreorder \n\t"
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"1: \n\t"
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"lw %[value], 0(%[vector]) \n\t"
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"addiu %[length], %[length], -1 \n\t"
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"slt %[tmp1], %[maximum], %[value] \n\t"
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"movn %[maximum], %[value], %[tmp1] \n\t"
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"bgtz %[length], 1b \n\t"
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" addiu %[vector], %[vector], 4 \n\t"
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".set pop \n\t"
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: [tmp1] "=&r" (tmp1), [maximum] "+r" (maximum), [value] "=&r" (value)
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: [vector] "r" (vector), [length] "r" (length)
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: "memory"
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);
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return maximum;
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}
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// Minimum value of word16 vector. Version for MIPS platform.
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int16_t WebRtcSpl_MinValueW16_mips(const int16_t* vector, size_t length) {
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int16_t minimum = WEBRTC_SPL_WORD16_MAX;
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int tmp1;
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int16_t value;
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RTC_DCHECK_GT(length, 0);
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__asm__ volatile (
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".set push \n\t"
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".set noreorder \n\t"
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"1: \n\t"
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"lh %[value], 0(%[vector]) \n\t"
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"addiu %[length], %[length], -1 \n\t"
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"slt %[tmp1], %[value], %[minimum] \n\t"
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"movn %[minimum], %[value], %[tmp1] \n\t"
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"bgtz %[length], 1b \n\t"
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" addiu %[vector], %[vector], 2 \n\t"
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".set pop \n\t"
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: [tmp1] "=&r" (tmp1), [minimum] "+r" (minimum), [value] "=&r" (value)
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: [vector] "r" (vector), [length] "r" (length)
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: "memory"
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);
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return minimum;
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}
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// Minimum value of word32 vector. Version for MIPS platform.
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int32_t WebRtcSpl_MinValueW32_mips(const int32_t* vector, size_t length) {
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int32_t minimum = WEBRTC_SPL_WORD32_MAX;
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int tmp1, value;
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RTC_DCHECK_GT(length, 0);
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__asm__ volatile (
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".set push \n\t"
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".set noreorder \n\t"
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"1: \n\t"
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"lw %[value], 0(%[vector]) \n\t"
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"addiu %[length], %[length], -1 \n\t"
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"slt %[tmp1], %[value], %[minimum] \n\t"
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"movn %[minimum], %[value], %[tmp1] \n\t"
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"bgtz %[length], 1b \n\t"
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" addiu %[vector], %[vector], 4 \n\t"
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".set pop \n\t"
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: [tmp1] "=&r" (tmp1), [minimum] "+r" (minimum), [value] "=&r" (value)
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: [vector] "r" (vector), [length] "r" (length)
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: "memory"
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);
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return minimum;
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}
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