| /* |
| * 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 contains the implementation of function |
| * WebRtcSpl_MaxAbsValueW16() |
| * |
| * The description header can be found in signal_processing_library.h. |
| * |
| */ |
| |
| #include "webrtc/base/checks.h" |
| #include "webrtc/common_audio/signal_processing/include/signal_processing_library.h" |
| |
| // Maximum absolute value of word16 vector. |
| int16_t WebRtcSpl_MaxAbsValueW16_mips(const int16_t* vector, size_t length) { |
| int32_t totMax = 0; |
| int32_t tmp32_0, tmp32_1, tmp32_2, tmp32_3; |
| size_t i, loop_size; |
| |
| RTC_DCHECK_GT(length, 0); |
| |
| #if defined(MIPS_DSP_R1) |
| const int32_t* tmpvec32 = (int32_t*)vector; |
| loop_size = length >> 4; |
| |
| for (i = 0; i < loop_size; i++) { |
| __asm__ volatile ( |
| "lw %[tmp32_0], 0(%[tmpvec32]) \n\t" |
| "lw %[tmp32_1], 4(%[tmpvec32]) \n\t" |
| "lw %[tmp32_2], 8(%[tmpvec32]) \n\t" |
| "lw %[tmp32_3], 12(%[tmpvec32]) \n\t" |
| |
| "absq_s.ph %[tmp32_0], %[tmp32_0] \n\t" |
| "absq_s.ph %[tmp32_1], %[tmp32_1] \n\t" |
| "cmp.lt.ph %[totMax], %[tmp32_0] \n\t" |
| "pick.ph %[totMax], %[tmp32_0], %[totMax] \n\t" |
| |
| "lw %[tmp32_0], 16(%[tmpvec32]) \n\t" |
| "absq_s.ph %[tmp32_2], %[tmp32_2] \n\t" |
| "cmp.lt.ph %[totMax], %[tmp32_1] \n\t" |
| "pick.ph %[totMax], %[tmp32_1], %[totMax] \n\t" |
| |
| "lw %[tmp32_1], 20(%[tmpvec32]) \n\t" |
| "absq_s.ph %[tmp32_3], %[tmp32_3] \n\t" |
| "cmp.lt.ph %[totMax], %[tmp32_2] \n\t" |
| "pick.ph %[totMax], %[tmp32_2], %[totMax] \n\t" |
| |
| "lw %[tmp32_2], 24(%[tmpvec32]) \n\t" |
| "cmp.lt.ph %[totMax], %[tmp32_3] \n\t" |
| "pick.ph %[totMax], %[tmp32_3], %[totMax] \n\t" |
| |
| "lw %[tmp32_3], 28(%[tmpvec32]) \n\t" |
| "absq_s.ph %[tmp32_0], %[tmp32_0] \n\t" |
| "absq_s.ph %[tmp32_1], %[tmp32_1] \n\t" |
| "cmp.lt.ph %[totMax], %[tmp32_0] \n\t" |
| "pick.ph %[totMax], %[tmp32_0], %[totMax] \n\t" |
| |
| "absq_s.ph %[tmp32_2], %[tmp32_2] \n\t" |
| "cmp.lt.ph %[totMax], %[tmp32_1] \n\t" |
| "pick.ph %[totMax], %[tmp32_1], %[totMax] \n\t" |
| "absq_s.ph %[tmp32_3], %[tmp32_3] \n\t" |
| "cmp.lt.ph %[totMax], %[tmp32_2] \n\t" |
| "pick.ph %[totMax], %[tmp32_2], %[totMax] \n\t" |
| |
| "cmp.lt.ph %[totMax], %[tmp32_3] \n\t" |
| "pick.ph %[totMax], %[tmp32_3], %[totMax] \n\t" |
| |
| "addiu %[tmpvec32], %[tmpvec32], 32 \n\t" |
| : [tmp32_0] "=&r" (tmp32_0), [tmp32_1] "=&r" (tmp32_1), |
| [tmp32_2] "=&r" (tmp32_2), [tmp32_3] "=&r" (tmp32_3), |
| [totMax] "+r" (totMax), [tmpvec32] "+r" (tmpvec32) |
| : |
| : "memory" |
| ); |
| } |
| __asm__ volatile ( |
| "rotr %[tmp32_0], %[totMax], 16 \n\t" |
| "cmp.lt.ph %[totMax], %[tmp32_0] \n\t" |
| "pick.ph %[totMax], %[tmp32_0], %[totMax] \n\t" |
| "packrl.ph %[totMax], $0, %[totMax] \n\t" |
| : [tmp32_0] "=&r" (tmp32_0), [totMax] "+r" (totMax) |
| : |
| ); |
| loop_size = length & 0xf; |
| for (i = 0; i < loop_size; i++) { |
| __asm__ volatile ( |
| "lh %[tmp32_0], 0(%[tmpvec32]) \n\t" |
| "addiu %[tmpvec32], %[tmpvec32], 2 \n\t" |
| "absq_s.w %[tmp32_0], %[tmp32_0] \n\t" |
| "slt %[tmp32_1], %[totMax], %[tmp32_0] \n\t" |
| "movn %[totMax], %[tmp32_0], %[tmp32_1] \n\t" |
| : [tmp32_0] "=&r" (tmp32_0), [tmp32_1] "=&r" (tmp32_1), |
| [tmpvec32] "+r" (tmpvec32), [totMax] "+r" (totMax) |
| : |
| : "memory" |
| ); |
| } |
| #else // #if defined(MIPS_DSP_R1) |
| int32_t v16MaxMax = WEBRTC_SPL_WORD16_MAX; |
| int32_t r, r1, r2, r3; |
| const int16_t* tmpvector = vector; |
| loop_size = length >> 4; |
| for (i = 0; i < loop_size; i++) { |
| __asm__ volatile ( |
| "lh %[tmp32_0], 0(%[tmpvector]) \n\t" |
| "lh %[tmp32_1], 2(%[tmpvector]) \n\t" |
| "lh %[tmp32_2], 4(%[tmpvector]) \n\t" |
| "lh %[tmp32_3], 6(%[tmpvector]) \n\t" |
| |
| "abs %[tmp32_0], %[tmp32_0] \n\t" |
| "abs %[tmp32_1], %[tmp32_1] \n\t" |
| "abs %[tmp32_2], %[tmp32_2] \n\t" |
| "abs %[tmp32_3], %[tmp32_3] \n\t" |
| |
| "slt %[r], %[totMax], %[tmp32_0] \n\t" |
| "movn %[totMax], %[tmp32_0], %[r] \n\t" |
| "slt %[r1], %[totMax], %[tmp32_1] \n\t" |
| "movn %[totMax], %[tmp32_1], %[r1] \n\t" |
| "slt %[r2], %[totMax], %[tmp32_2] \n\t" |
| "movn %[totMax], %[tmp32_2], %[r2] \n\t" |
| "slt %[r3], %[totMax], %[tmp32_3] \n\t" |
| "movn %[totMax], %[tmp32_3], %[r3] \n\t" |
| |
| "lh %[tmp32_0], 8(%[tmpvector]) \n\t" |
| "lh %[tmp32_1], 10(%[tmpvector]) \n\t" |
| "lh %[tmp32_2], 12(%[tmpvector]) \n\t" |
| "lh %[tmp32_3], 14(%[tmpvector]) \n\t" |
| |
| "abs %[tmp32_0], %[tmp32_0] \n\t" |
| "abs %[tmp32_1], %[tmp32_1] \n\t" |
| "abs %[tmp32_2], %[tmp32_2] \n\t" |
| "abs %[tmp32_3], %[tmp32_3] \n\t" |
| |
| "slt %[r], %[totMax], %[tmp32_0] \n\t" |
| "movn %[totMax], %[tmp32_0], %[r] \n\t" |
| "slt %[r1], %[totMax], %[tmp32_1] \n\t" |
| "movn %[totMax], %[tmp32_1], %[r1] \n\t" |
| "slt %[r2], %[totMax], %[tmp32_2] \n\t" |
| "movn %[totMax], %[tmp32_2], %[r2] \n\t" |
| "slt %[r3], %[totMax], %[tmp32_3] \n\t" |
| "movn %[totMax], %[tmp32_3], %[r3] \n\t" |
| |
| "lh %[tmp32_0], 16(%[tmpvector]) \n\t" |
| "lh %[tmp32_1], 18(%[tmpvector]) \n\t" |
| "lh %[tmp32_2], 20(%[tmpvector]) \n\t" |
| "lh %[tmp32_3], 22(%[tmpvector]) \n\t" |
| |
| "abs %[tmp32_0], %[tmp32_0] \n\t" |
| "abs %[tmp32_1], %[tmp32_1] \n\t" |
| "abs %[tmp32_2], %[tmp32_2] \n\t" |
| "abs %[tmp32_3], %[tmp32_3] \n\t" |
| |
| "slt %[r], %[totMax], %[tmp32_0] \n\t" |
| "movn %[totMax], %[tmp32_0], %[r] \n\t" |
| "slt %[r1], %[totMax], %[tmp32_1] \n\t" |
| "movn %[totMax], %[tmp32_1], %[r1] \n\t" |
| "slt %[r2], %[totMax], %[tmp32_2] \n\t" |
| "movn %[totMax], %[tmp32_2], %[r2] \n\t" |
| "slt %[r3], %[totMax], %[tmp32_3] \n\t" |
| "movn %[totMax], %[tmp32_3], %[r3] \n\t" |
| |
| "lh %[tmp32_0], 24(%[tmpvector]) \n\t" |
| "lh %[tmp32_1], 26(%[tmpvector]) \n\t" |
| "lh %[tmp32_2], 28(%[tmpvector]) \n\t" |
| "lh %[tmp32_3], 30(%[tmpvector]) \n\t" |
| |
| "abs %[tmp32_0], %[tmp32_0] \n\t" |
| "abs %[tmp32_1], %[tmp32_1] \n\t" |
| "abs %[tmp32_2], %[tmp32_2] \n\t" |
| "abs %[tmp32_3], %[tmp32_3] \n\t" |
| |
| "slt %[r], %[totMax], %[tmp32_0] \n\t" |
| "movn %[totMax], %[tmp32_0], %[r] \n\t" |
| "slt %[r1], %[totMax], %[tmp32_1] \n\t" |
| "movn %[totMax], %[tmp32_1], %[r1] \n\t" |
| "slt %[r2], %[totMax], %[tmp32_2] \n\t" |
| "movn %[totMax], %[tmp32_2], %[r2] \n\t" |
| "slt %[r3], %[totMax], %[tmp32_3] \n\t" |
| "movn %[totMax], %[tmp32_3], %[r3] \n\t" |
| |
| "addiu %[tmpvector], %[tmpvector], 32 \n\t" |
| : [tmp32_0] "=&r" (tmp32_0), [tmp32_1] "=&r" (tmp32_1), |
| [tmp32_2] "=&r" (tmp32_2), [tmp32_3] "=&r" (tmp32_3), |
| [totMax] "+r" (totMax), [r] "=&r" (r), [tmpvector] "+r" (tmpvector), |
| [r1] "=&r" (r1), [r2] "=&r" (r2), [r3] "=&r" (r3) |
| : |
| : "memory" |
| ); |
| } |
| loop_size = length & 0xf; |
| for (i = 0; i < loop_size; i++) { |
| __asm__ volatile ( |
| "lh %[tmp32_0], 0(%[tmpvector]) \n\t" |
| "addiu %[tmpvector], %[tmpvector], 2 \n\t" |
| "abs %[tmp32_0], %[tmp32_0] \n\t" |
| "slt %[tmp32_1], %[totMax], %[tmp32_0] \n\t" |
| "movn %[totMax], %[tmp32_0], %[tmp32_1] \n\t" |
| : [tmp32_0] "=&r" (tmp32_0), [tmp32_1] "=&r" (tmp32_1), |
| [tmpvector] "+r" (tmpvector), [totMax] "+r" (totMax) |
| : |
| : "memory" |
| ); |
| } |
| |
| __asm__ volatile ( |
| "slt %[r], %[v16MaxMax], %[totMax] \n\t" |
| "movn %[totMax], %[v16MaxMax], %[r] \n\t" |
| : [totMax] "+r" (totMax), [r] "=&r" (r) |
| : [v16MaxMax] "r" (v16MaxMax) |
| ); |
| #endif // #if defined(MIPS_DSP_R1) |
| return (int16_t)totMax; |
| } |
| |
| #if defined(MIPS_DSP_R1_LE) |
| // Maximum absolute value of word32 vector. Version for MIPS platform. |
| int32_t WebRtcSpl_MaxAbsValueW32_mips(const int32_t* vector, size_t length) { |
| // Use uint32_t for the local variables, to accommodate the return value |
| // of abs(0x80000000), which is 0x80000000. |
| |
| uint32_t absolute = 0, maximum = 0; |
| int tmp1 = 0, max_value = 0x7fffffff; |
| |
| RTC_DCHECK_GT(length, 0); |
| |
| __asm__ volatile ( |
| ".set push \n\t" |
| ".set noreorder \n\t" |
| |
| "1: \n\t" |
| "lw %[absolute], 0(%[vector]) \n\t" |
| "absq_s.w %[absolute], %[absolute] \n\t" |
| "addiu %[length], %[length], -1 \n\t" |
| "slt %[tmp1], %[maximum], %[absolute] \n\t" |
| "movn %[maximum], %[absolute], %[tmp1] \n\t" |
| "bgtz %[length], 1b \n\t" |
| " addiu %[vector], %[vector], 4 \n\t" |
| "slt %[tmp1], %[max_value], %[maximum] \n\t" |
| "movn %[maximum], %[max_value], %[tmp1] \n\t" |
| |
| ".set pop \n\t" |
| |
| : [tmp1] "=&r" (tmp1), [maximum] "+r" (maximum), [absolute] "+r" (absolute) |
| : [vector] "r" (vector), [length] "r" (length), [max_value] "r" (max_value) |
| : "memory" |
| ); |
| |
| return (int32_t)maximum; |
| } |
| #endif // #if defined(MIPS_DSP_R1_LE) |
| |
| // Maximum value of word16 vector. Version for MIPS platform. |
| int16_t WebRtcSpl_MaxValueW16_mips(const int16_t* vector, size_t length) { |
| int16_t maximum = WEBRTC_SPL_WORD16_MIN; |
| int tmp1; |
| int16_t value; |
| |
| RTC_DCHECK_GT(length, 0); |
| |
| __asm__ volatile ( |
| ".set push \n\t" |
| ".set noreorder \n\t" |
| |
| "1: \n\t" |
| "lh %[value], 0(%[vector]) \n\t" |
| "addiu %[length], %[length], -1 \n\t" |
| "slt %[tmp1], %[maximum], %[value] \n\t" |
| "movn %[maximum], %[value], %[tmp1] \n\t" |
| "bgtz %[length], 1b \n\t" |
| " addiu %[vector], %[vector], 2 \n\t" |
| ".set pop \n\t" |
| |
| : [tmp1] "=&r" (tmp1), [maximum] "+r" (maximum), [value] "=&r" (value) |
| : [vector] "r" (vector), [length] "r" (length) |
| : "memory" |
| ); |
| |
| return maximum; |
| } |
| |
| // Maximum value of word32 vector. Version for MIPS platform. |
| int32_t WebRtcSpl_MaxValueW32_mips(const int32_t* vector, size_t length) { |
| int32_t maximum = WEBRTC_SPL_WORD32_MIN; |
| int tmp1, value; |
| |
| RTC_DCHECK_GT(length, 0); |
| |
| __asm__ volatile ( |
| ".set push \n\t" |
| ".set noreorder \n\t" |
| |
| "1: \n\t" |
| "lw %[value], 0(%[vector]) \n\t" |
| "addiu %[length], %[length], -1 \n\t" |
| "slt %[tmp1], %[maximum], %[value] \n\t" |
| "movn %[maximum], %[value], %[tmp1] \n\t" |
| "bgtz %[length], 1b \n\t" |
| " addiu %[vector], %[vector], 4 \n\t" |
| |
| ".set pop \n\t" |
| |
| : [tmp1] "=&r" (tmp1), [maximum] "+r" (maximum), [value] "=&r" (value) |
| : [vector] "r" (vector), [length] "r" (length) |
| : "memory" |
| ); |
| |
| return maximum; |
| } |
| |
| // Minimum value of word16 vector. Version for MIPS platform. |
| int16_t WebRtcSpl_MinValueW16_mips(const int16_t* vector, size_t length) { |
| int16_t minimum = WEBRTC_SPL_WORD16_MAX; |
| int tmp1; |
| int16_t value; |
| |
| RTC_DCHECK_GT(length, 0); |
| |
| __asm__ volatile ( |
| ".set push \n\t" |
| ".set noreorder \n\t" |
| |
| "1: \n\t" |
| "lh %[value], 0(%[vector]) \n\t" |
| "addiu %[length], %[length], -1 \n\t" |
| "slt %[tmp1], %[value], %[minimum] \n\t" |
| "movn %[minimum], %[value], %[tmp1] \n\t" |
| "bgtz %[length], 1b \n\t" |
| " addiu %[vector], %[vector], 2 \n\t" |
| |
| ".set pop \n\t" |
| |
| : [tmp1] "=&r" (tmp1), [minimum] "+r" (minimum), [value] "=&r" (value) |
| : [vector] "r" (vector), [length] "r" (length) |
| : "memory" |
| ); |
| |
| return minimum; |
| } |
| |
| // Minimum value of word32 vector. Version for MIPS platform. |
| int32_t WebRtcSpl_MinValueW32_mips(const int32_t* vector, size_t length) { |
| int32_t minimum = WEBRTC_SPL_WORD32_MAX; |
| int tmp1, value; |
| |
| RTC_DCHECK_GT(length, 0); |
| |
| __asm__ volatile ( |
| ".set push \n\t" |
| ".set noreorder \n\t" |
| |
| "1: \n\t" |
| "lw %[value], 0(%[vector]) \n\t" |
| "addiu %[length], %[length], -1 \n\t" |
| "slt %[tmp1], %[value], %[minimum] \n\t" |
| "movn %[minimum], %[value], %[tmp1] \n\t" |
| "bgtz %[length], 1b \n\t" |
| " addiu %[vector], %[vector], 4 \n\t" |
| |
| ".set pop \n\t" |
| |
| : [tmp1] "=&r" (tmp1), [minimum] "+r" (minimum), [value] "=&r" (value) |
| : [vector] "r" (vector), [length] "r" (length) |
| : "memory" |
| ); |
| |
| return minimum; |
| } |
