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Import aom library
This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
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trav90
Roy Tam
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commit
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989 changed files with 470949 additions and 0 deletions
237
third_party/aom/aom_dsp/mips/convolve2_vert_dspr2.c
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237
third_party/aom/aom_dsp/mips/convolve2_vert_dspr2.c
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/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include <assert.h>
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#include <stdio.h>
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#include "./aom_dsp_rtcd.h"
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#include "aom_dsp/mips/convolve_common_dspr2.h"
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#include "aom_dsp/aom_convolve.h"
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#include "aom_dsp/aom_dsp_common.h"
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#include "aom_ports/mem.h"
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#if HAVE_DSPR2
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static void convolve_bi_vert_4_dspr2(const uint8_t *src, int32_t src_stride,
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uint8_t *dst, int32_t dst_stride,
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const int16_t *filter_y, int32_t w,
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int32_t h) {
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int32_t x, y;
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const uint8_t *src_ptr;
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uint8_t *dst_ptr;
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uint8_t *cm = aom_ff_cropTbl;
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uint32_t vector4a = 64;
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uint32_t load1, load2;
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uint32_t p1, p2;
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uint32_t scratch1;
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uint32_t store1, store2;
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int32_t Temp1, Temp2;
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const int16_t *filter = &filter_y[3];
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uint32_t filter45;
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filter45 = ((const int32_t *)filter)[0];
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for (y = h; y--;) {
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/* prefetch data to cache memory */
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prefetch_store(dst + dst_stride);
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for (x = 0; x < w; x += 4) {
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src_ptr = src + x;
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dst_ptr = dst + x;
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__asm__ __volatile__(
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"ulw %[load1], 0(%[src_ptr]) \n\t"
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"add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
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"ulw %[load2], 0(%[src_ptr]) \n\t"
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"mtlo %[vector4a], $ac0 \n\t"
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"mtlo %[vector4a], $ac1 \n\t"
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"mtlo %[vector4a], $ac2 \n\t"
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"mtlo %[vector4a], $ac3 \n\t"
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"mthi $zero, $ac0 \n\t"
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"mthi $zero, $ac1 \n\t"
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"mthi $zero, $ac2 \n\t"
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"mthi $zero, $ac3 \n\t"
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"preceu.ph.qbr %[scratch1], %[load1] \n\t"
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"preceu.ph.qbr %[p1], %[load2] \n\t"
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"precrq.ph.w %[p2], %[p1], %[scratch1] \n\t" /* pixel 2 */
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"append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */
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"dpa.w.ph $ac0, %[p1], %[filter45] \n\t"
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"dpa.w.ph $ac1, %[p2], %[filter45] \n\t"
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"preceu.ph.qbl %[scratch1], %[load1] \n\t"
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"preceu.ph.qbl %[p1], %[load2] \n\t"
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"precrq.ph.w %[p2], %[p1], %[scratch1] \n\t" /* pixel 2 */
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"append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */
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"dpa.w.ph $ac2, %[p1], %[filter45] \n\t"
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"dpa.w.ph $ac3, %[p2], %[filter45] \n\t"
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"extp %[Temp1], $ac0, 31 \n\t"
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"extp %[Temp2], $ac1, 31 \n\t"
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"lbux %[store1], %[Temp1](%[cm]) \n\t"
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"extp %[Temp1], $ac2, 31 \n\t"
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"lbux %[store2], %[Temp2](%[cm]) \n\t"
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"extp %[Temp2], $ac3, 31 \n\t"
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"sb %[store1], 0(%[dst_ptr]) \n\t"
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"sb %[store2], 1(%[dst_ptr]) \n\t"
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"lbux %[store1], %[Temp1](%[cm]) \n\t"
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"lbux %[store2], %[Temp2](%[cm]) \n\t"
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"sb %[store1], 2(%[dst_ptr]) \n\t"
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"sb %[store2], 3(%[dst_ptr]) \n\t"
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: [load1] "=&r"(load1), [load2] "=&r"(load2), [p1] "=&r"(p1),
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[p2] "=&r"(p2), [scratch1] "=&r"(scratch1), [Temp1] "=&r"(Temp1),
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[Temp2] "=&r"(Temp2), [store1] "=&r"(store1),
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[store2] "=&r"(store2), [src_ptr] "+r"(src_ptr)
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: [filter45] "r"(filter45), [vector4a] "r"(vector4a),
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[src_stride] "r"(src_stride), [cm] "r"(cm), [dst_ptr] "r"(dst_ptr));
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}
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/* Next row... */
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src += src_stride;
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dst += dst_stride;
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}
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}
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static void convolve_bi_vert_64_dspr2(const uint8_t *src, int32_t src_stride,
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uint8_t *dst, int32_t dst_stride,
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const int16_t *filter_y, int32_t h) {
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int32_t x, y;
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const uint8_t *src_ptr;
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uint8_t *dst_ptr;
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uint8_t *cm = aom_ff_cropTbl;
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uint32_t vector4a = 64;
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uint32_t load1, load2;
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uint32_t p1, p2;
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uint32_t scratch1;
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uint32_t store1, store2;
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int32_t Temp1, Temp2;
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const int16_t *filter = &filter_y[3];
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uint32_t filter45;
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filter45 = ((const int32_t *)filter)[0];
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for (y = h; y--;) {
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/* prefetch data to cache memory */
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prefetch_store(dst + dst_stride);
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for (x = 0; x < 64; x += 4) {
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src_ptr = src + x;
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dst_ptr = dst + x;
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__asm__ __volatile__(
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"ulw %[load1], 0(%[src_ptr]) \n\t"
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"add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
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"ulw %[load2], 0(%[src_ptr]) \n\t"
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"mtlo %[vector4a], $ac0 \n\t"
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"mtlo %[vector4a], $ac1 \n\t"
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"mtlo %[vector4a], $ac2 \n\t"
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"mtlo %[vector4a], $ac3 \n\t"
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"mthi $zero, $ac0 \n\t"
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"mthi $zero, $ac1 \n\t"
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"mthi $zero, $ac2 \n\t"
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"mthi $zero, $ac3 \n\t"
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"preceu.ph.qbr %[scratch1], %[load1] \n\t"
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"preceu.ph.qbr %[p1], %[load2] \n\t"
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"precrq.ph.w %[p2], %[p1], %[scratch1] \n\t" /* pixel 2 */
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"append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */
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"dpa.w.ph $ac0, %[p1], %[filter45] \n\t"
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"dpa.w.ph $ac1, %[p2], %[filter45] \n\t"
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"preceu.ph.qbl %[scratch1], %[load1] \n\t"
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"preceu.ph.qbl %[p1], %[load2] \n\t"
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"precrq.ph.w %[p2], %[p1], %[scratch1] \n\t" /* pixel 2 */
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"append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */
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"dpa.w.ph $ac2, %[p1], %[filter45] \n\t"
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"dpa.w.ph $ac3, %[p2], %[filter45] \n\t"
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"extp %[Temp1], $ac0, 31 \n\t"
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"extp %[Temp2], $ac1, 31 \n\t"
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"lbux %[store1], %[Temp1](%[cm]) \n\t"
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"extp %[Temp1], $ac2, 31 \n\t"
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"lbux %[store2], %[Temp2](%[cm]) \n\t"
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"extp %[Temp2], $ac3, 31 \n\t"
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"sb %[store1], 0(%[dst_ptr]) \n\t"
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"sb %[store2], 1(%[dst_ptr]) \n\t"
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"lbux %[store1], %[Temp1](%[cm]) \n\t"
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"lbux %[store2], %[Temp2](%[cm]) \n\t"
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"sb %[store1], 2(%[dst_ptr]) \n\t"
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"sb %[store2], 3(%[dst_ptr]) \n\t"
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: [load1] "=&r"(load1), [load2] "=&r"(load2), [p1] "=&r"(p1),
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[p2] "=&r"(p2), [scratch1] "=&r"(scratch1), [Temp1] "=&r"(Temp1),
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[Temp2] "=&r"(Temp2), [store1] "=&r"(store1),
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[store2] "=&r"(store2), [src_ptr] "+r"(src_ptr)
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: [filter45] "r"(filter45), [vector4a] "r"(vector4a),
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[src_stride] "r"(src_stride), [cm] "r"(cm), [dst_ptr] "r"(dst_ptr));
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}
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/* Next row... */
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src += src_stride;
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dst += dst_stride;
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}
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}
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void aom_convolve2_vert_dspr2(const uint8_t *src, ptrdiff_t src_stride,
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uint8_t *dst, ptrdiff_t dst_stride,
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const int16_t *filter_x, int x_step_q4,
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const int16_t *filter_y, int y_step_q4, int w,
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int h) {
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uint32_t pos = 38;
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assert(y_step_q4 == 16);
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/* bit positon for extract from acc */
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__asm__ __volatile__("wrdsp %[pos], 1 \n\t"
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:
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: [pos] "r"(pos));
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prefetch_store(dst);
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switch (w) {
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case 4:
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case 8:
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case 16:
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case 32:
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convolve_bi_vert_4_dspr2(src, src_stride, dst, dst_stride, filter_y, w,
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h);
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break;
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case 64:
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prefetch_store(dst + 32);
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convolve_bi_vert_64_dspr2(src, src_stride, dst, dst_stride, filter_y, h);
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break;
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default:
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aom_convolve8_vert_c(src, src_stride, dst, dst_stride, filter_x,
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x_step_q4, filter_y, y_step_q4, w, h);
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break;
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}
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}
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#endif
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