shithub: libvpx

Download patch

ref: 19638c23098537803a8efec7ca675b905c7d2777
parent: d330a5876b54d4e20fce1533d534affddffd71ea
author: John Koleszar <jkoleszar@google.com>
date: Tue Oct 26 05:51:35 EDT 2010 

arm: move unrolled loops back to generic code

Some of the ARM functions differed from their generic counterparts
only by unrolling their loops. Since this change may be useful
on other platforms, or might even supercede the looped version
in the generic case, move it back to the generic file.

This code is left under #if ARCH_ARM for now, but it may be worth
considering a different (possibly new) conditional for these. If
it turns out that this should be runtime selectable, these
functions will have to move to the RTCD infrastructure. Don't want
to take that step at this time without more profile data.

Change-Id: I4612fdbc606fbebba4971a690fb743ad184ff15f


--- a/vp8/common/arm/recon_arm.c
+++ b/vp8/common/arm/recon_arm.c
@@ -15,36 +15,6 @@
 
 extern void vp8_recon16x16mb_neon(unsigned char *pred_ptr, short *diff_ptr, unsigned char *dst_ptr, int ystride, unsigned char *udst_ptr, unsigned char *vdst_ptr);
 
-/*
-void vp8_recon16x16mby(MACROBLOCKD *x)
-{
-    int i;
-    for(i=0;i<16;i+=4)
-    {
-        //vp8_recon4b(&x->block[i]);
-        BLOCKD *b = &x->block[i];
-        vp8_recon4b (b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-    }
-}
-*/
-void vp8_recon16x16mby(const vp8_recon_rtcd_vtable_t *rtcd, MACROBLOCKD *x)
-{
-    BLOCKD *b = &x->block[0];
-    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-
-    //b = &x->block[4];
-    b += 4;
-    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-
-    //b = &x->block[8];
-    b += 4;
-    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-
-    //b = &x->block[12];
-    b += 4;
-    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-}
-
 #if HAVE_ARMV7
 void vp8_recon16x16mb(const vp8_recon_rtcd_vtable_t *rtcd, MACROBLOCKD *x)
 {
@@ -57,53 +27,5 @@
     //int uv_stride = x->dst.uv_stride;
 
     vp8_recon16x16mb_neon(pred_ptr, diff_ptr, dst_ptr, ystride, udst_ptr, vdst_ptr);
-}
-
-#else
-/*
-void vp8_recon16x16mb(MACROBLOCKD *x)
-{
-    int i;
-
-    for(i=0;i<16;i+=4)
-    {
-//      vp8_recon4b(&x->block[i]);
-        BLOCKD *b = &x->block[i];
-        vp8_recon4b (b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-
-    }
-    for(i=16;i<24;i+=2)
-    {
-//      vp8_recon2b(&x->block[i]);
-        BLOCKD *b = &x->block[i];
-        vp8_recon2b (b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-    }
-}
-*/
-void vp8_recon16x16mb(const vp8_recon_rtcd_vtable_t *rtcd, MACROBLOCKD *x)
-{
-    BLOCKD *b = &x->block[0];
-
-    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-    b += 4;
-    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-    b += 4;
-    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-    b += 4;
-    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-    b += 4;
-
-    //b = &x->block[16];
-
-    RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-    b++;
-    b++;
-    RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-    b++;
-    b++;
-    RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-    b++;
-    b++;
-    RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
 }
 #endif
--- a/vp8/common/arm/reconintra4x4_arm.c
+++ /dev/null
@@ -1,395 +1,0 @@
-/*
- *  Copyright (c) 2010 The WebM 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.
- */
-
-
-#include "vpx_ports/config.h"
-#include "recon.h"
-#include "vpx_mem/vpx_mem.h"
-#include "reconintra.h"
-
-void vp8_predict_intra4x4(BLOCKD *x,
-                          int b_mode,
-                          unsigned char *predictor)
-{
-    int i, r, c;
-
-    unsigned char *Above = *(x->base_dst) + x->dst - x->dst_stride;
-    unsigned char Left[4];
-    unsigned char top_left = Above[-1];
-
-    Left[0] = (*(x->base_dst))[x->dst - 1];
-    Left[1] = (*(x->base_dst))[x->dst - 1 + x->dst_stride];
-    Left[2] = (*(x->base_dst))[x->dst - 1 + 2 * x->dst_stride];
-    Left[3] = (*(x->base_dst))[x->dst - 1 + 3 * x->dst_stride];
-
-    switch (b_mode)
-    {
-    case B_DC_PRED:
-    {
-        int expected_dc = 0;
-
-        for (i = 0; i < 4; i++)
-        {
-            expected_dc += Above[i];
-            expected_dc += Left[i];
-        }
-
-        expected_dc = (expected_dc + 4) >> 3;
-
-        for (r = 0; r < 4; r++)
-        {
-            for (c = 0; c < 4; c++)
-            {
-                predictor[c] = expected_dc;
-            }
-
-            predictor += 16;
-        }
-    }
-    break;
-    case B_TM_PRED:
-    {
-        // prediction similar to true_motion prediction
-        for (r = 0; r < 4; r++)
-        {
-            for (c = 0; c < 4; c++)
-            {
-                int pred = Above[c] - top_left + Left[r];
-
-                if (pred < 0)
-                    pred = 0;
-
-                if (pred > 255)
-                    pred = 255;
-
-                predictor[c] = pred;
-            }
-
-            predictor += 16;
-        }
-    }
-    break;
-
-    case B_VE_PRED:
-    {
-
-        unsigned int ap[4];
-        ap[0] = (top_left  + 2 * Above[0] + Above[1] + 2) >> 2;
-        ap[1] = (Above[0] + 2 * Above[1] + Above[2] + 2) >> 2;
-        ap[2] = (Above[1] + 2 * Above[2] + Above[3] + 2) >> 2;
-        ap[3] = (Above[2] + 2 * Above[3] + Above[4] + 2) >> 2;
-
-        for (r = 0; r < 4; r++)
-        {
-            for (c = 0; c < 4; c++)
-            {
-
-                predictor[c] = ap[c];
-            }
-
-            predictor += 16;
-        }
-
-    }
-    break;
-
-
-    case B_HE_PRED:
-    {
-
-        unsigned int lp[4];
-        lp[0] = (top_left + 2 * Left[0] + Left[1] + 2) >> 2;
-        lp[1] = (Left[0] + 2 * Left[1] + Left[2] + 2) >> 2;
-        lp[2] = (Left[1] + 2 * Left[2] + Left[3] + 2) >> 2;
-        lp[3] = (Left[2] + 2 * Left[3] + Left[3] + 2) >> 2;
-
-        for (r = 0; r < 4; r++)
-        {
-            for (c = 0; c < 4; c++)
-            {
-                predictor[c] = lp[r];
-            }
-
-            predictor += 16;
-        }
-    }
-    break;
-    case B_LD_PRED:
-    {
-        unsigned char *ptr = Above;
-        predictor[0 * 16 + 0] = (ptr[0] + ptr[1] * 2 + ptr[2] + 2) >> 2;
-        predictor[0 * 16 + 1] =
-            predictor[1 * 16 + 0] = (ptr[1] + ptr[2] * 2 + ptr[3] + 2) >> 2;
-        predictor[0 * 16 + 2] =
-            predictor[1 * 16 + 1] =
-                predictor[2 * 16 + 0] = (ptr[2] + ptr[3] * 2 + ptr[4] + 2) >> 2;
-        predictor[0 * 16 + 3] =
-            predictor[1 * 16 + 2] =
-                predictor[2 * 16 + 1] =
-                    predictor[3 * 16 + 0] = (ptr[3] + ptr[4] * 2 + ptr[5] + 2) >> 2;
-        predictor[1 * 16 + 3] =
-            predictor[2 * 16 + 2] =
-                predictor[3 * 16 + 1] = (ptr[4] + ptr[5] * 2 + ptr[6] + 2) >> 2;
-        predictor[2 * 16 + 3] =
-            predictor[3 * 16 + 2] = (ptr[5] + ptr[6] * 2 + ptr[7] + 2) >> 2;
-        predictor[3 * 16 + 3] = (ptr[6] + ptr[7] * 2 + ptr[7] + 2) >> 2;
-
-    }
-    break;
-    case B_RD_PRED:
-    {
-
-        unsigned char pp[9];
-
-        pp[0] = Left[3];
-        pp[1] = Left[2];
-        pp[2] = Left[1];
-        pp[3] = Left[0];
-        pp[4] = top_left;
-        pp[5] = Above[0];
-        pp[6] = Above[1];
-        pp[7] = Above[2];
-        pp[8] = Above[3];
-
-        predictor[3 * 16 + 0] = (pp[0] + pp[1] * 2 + pp[2] + 2) >> 2;
-        predictor[3 * 16 + 1] =
-            predictor[2 * 16 + 0] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
-        predictor[3 * 16 + 2] =
-            predictor[2 * 16 + 1] =
-                predictor[1 * 16 + 0] = (pp[2] + pp[3] * 2 + pp[4] + 2) >> 2;
-        predictor[3 * 16 + 3] =
-            predictor[2 * 16 + 2] =
-                predictor[1 * 16 + 1] =
-                    predictor[0 * 16 + 0] = (pp[3] + pp[4] * 2 + pp[5] + 2) >> 2;
-        predictor[2 * 16 + 3] =
-            predictor[1 * 16 + 2] =
-                predictor[0 * 16 + 1] = (pp[4] + pp[5] * 2 + pp[6] + 2) >> 2;
-        predictor[1 * 16 + 3] =
-            predictor[0 * 16 + 2] = (pp[5] + pp[6] * 2 + pp[7] + 2) >> 2;
-        predictor[0 * 16 + 3] = (pp[6] + pp[7] * 2 + pp[8] + 2) >> 2;
-
-    }
-    break;
-    case B_VR_PRED:
-    {
-
-        unsigned char pp[9];
-
-        pp[0] = Left[3];
-        pp[1] = Left[2];
-        pp[2] = Left[1];
-        pp[3] = Left[0];
-        pp[4] = top_left;
-        pp[5] = Above[0];
-        pp[6] = Above[1];
-        pp[7] = Above[2];
-        pp[8] = Above[3];
-
-
-        predictor[3 * 16 + 0] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
-        predictor[2 * 16 + 0] = (pp[2] + pp[3] * 2 + pp[4] + 2) >> 2;
-        predictor[3 * 16 + 1] =
-            predictor[1 * 16 + 0] = (pp[3] + pp[4] * 2 + pp[5] + 2) >> 2;
-        predictor[2 * 16 + 1] =
-            predictor[0 * 16 + 0] = (pp[4] + pp[5] + 1) >> 1;
-        predictor[3 * 16 + 2] =
-            predictor[1 * 16 + 1] = (pp[4] + pp[5] * 2 + pp[6] + 2) >> 2;
-        predictor[2 * 16 + 2] =
-            predictor[0 * 16 + 1] = (pp[5] + pp[6] + 1) >> 1;
-        predictor[3 * 16 + 3] =
-            predictor[1 * 16 + 2] = (pp[5] + pp[6] * 2 + pp[7] + 2) >> 2;
-        predictor[2 * 16 + 3] =
-            predictor[0 * 16 + 2] = (pp[6] + pp[7] + 1) >> 1;
-        predictor[1 * 16 + 3] = (pp[6] + pp[7] * 2 + pp[8] + 2) >> 2;
-        predictor[0 * 16 + 3] = (pp[7] + pp[8] + 1) >> 1;
-
-    }
-    break;
-    case B_VL_PRED:
-    {
-
-        unsigned char *pp = Above;
-
-        predictor[0 * 16 + 0] = (pp[0] + pp[1] + 1) >> 1;
-        predictor[1 * 16 + 0] = (pp[0] + pp[1] * 2 + pp[2] + 2) >> 2;
-        predictor[2 * 16 + 0] =
-            predictor[0 * 16 + 1] = (pp[1] + pp[2] + 1) >> 1;
-        predictor[1 * 16 + 1] =
-            predictor[3 * 16 + 0] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
-        predictor[2 * 16 + 1] =
-            predictor[0 * 16 + 2] = (pp[2] + pp[3] + 1) >> 1;
-        predictor[3 * 16 + 1] =
-            predictor[1 * 16 + 2] = (pp[2] + pp[3] * 2 + pp[4] + 2) >> 2;
-        predictor[0 * 16 + 3] =
-            predictor[2 * 16 + 2] = (pp[3] + pp[4] + 1) >> 1;
-        predictor[1 * 16 + 3] =
-            predictor[3 * 16 + 2] = (pp[3] + pp[4] * 2 + pp[5] + 2) >> 2;
-        predictor[2 * 16 + 3] = (pp[4] + pp[5] * 2 + pp[6] + 2) >> 2;
-        predictor[3 * 16 + 3] = (pp[5] + pp[6] * 2 + pp[7] + 2) >> 2;
-    }
-    break;
-
-    case B_HD_PRED:
-    {
-        unsigned char pp[9];
-        pp[0] = Left[3];
-        pp[1] = Left[2];
-        pp[2] = Left[1];
-        pp[3] = Left[0];
-        pp[4] = top_left;
-        pp[5] = Above[0];
-        pp[6] = Above[1];
-        pp[7] = Above[2];
-        pp[8] = Above[3];
-
-
-        predictor[3 * 16 + 0] = (pp[0] + pp[1] + 1) >> 1;
-        predictor[3 * 16 + 1] = (pp[0] + pp[1] * 2 + pp[2] + 2) >> 2;
-        predictor[2 * 16 + 0] =
-            predictor[3 * 16 + 2] = (pp[1] + pp[2] + 1) >> 1;
-        predictor[2 * 16 + 1] =
-            predictor[3 * 16 + 3] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
-        predictor[2 * 16 + 2] =
-            predictor[1 * 16 + 0] = (pp[2] + pp[3] + 1) >> 1;
-        predictor[2 * 16 + 3] =
-            predictor[1 * 16 + 1] = (pp[2] + pp[3] * 2 + pp[4] + 2) >> 2;
-        predictor[1 * 16 + 2] =
-            predictor[0 * 16 + 0] = (pp[3] + pp[4] + 1) >> 1;
-        predictor[1 * 16 + 3] =
-            predictor[0 * 16 + 1] = (pp[3] + pp[4] * 2 + pp[5] + 2) >> 2;
-        predictor[0 * 16 + 2] = (pp[4] + pp[5] * 2 + pp[6] + 2) >> 2;
-        predictor[0 * 16 + 3] = (pp[5] + pp[6] * 2 + pp[7] + 2) >> 2;
-    }
-    break;
-
-
-    case B_HU_PRED:
-    {
-        unsigned char *pp = Left;
-        predictor[0 * 16 + 0] = (pp[0] + pp[1] + 1) >> 1;
-        predictor[0 * 16 + 1] = (pp[0] + pp[1] * 2 + pp[2] + 2) >> 2;
-        predictor[0 * 16 + 2] =
-            predictor[1 * 16 + 0] = (pp[1] + pp[2] + 1) >> 1;
-        predictor[0 * 16 + 3] =
-            predictor[1 * 16 + 1] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
-        predictor[1 * 16 + 2] =
-            predictor[2 * 16 + 0] = (pp[2] + pp[3] + 1) >> 1;
-        predictor[1 * 16 + 3] =
-            predictor[2 * 16 + 1] = (pp[2] + pp[3] * 2 + pp[3] + 2) >> 2;
-        predictor[2 * 16 + 2] =
-            predictor[2 * 16 + 3] =
-                predictor[3 * 16 + 0] =
-                    predictor[3 * 16 + 1] =
-                        predictor[3 * 16 + 2] =
-                            predictor[3 * 16 + 3] = pp[3];
-    }
-    break;
-
-
-    }
-}
-
-extern void vp8_intra_prediction_down_copy(MACROBLOCKD *x);
-
-
-/*
-void vp8_recon_intra4x4mb(const vp8_recon_rtcd_vtable_t *rtcd, MACROBLOCKD *x)
-{
-    int i;
-
-    vp8_intra_prediction_down_copy(x);
-
-    for(i=0;i<16;i++)
-    {
-        BLOCKD *b = &x->block[i];
-
-        vp8_predict_intra4x4(b, x->block[i].bmi.mode,x->block[i].predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-    }
-
-    vp8_recon_intra_mbuv(x);
-
-}
-*/
-void vp8_recon_intra4x4mb(const vp8_recon_rtcd_vtable_t *rtcd, MACROBLOCKD *x)
-{
-    int i;
-    BLOCKD *b = &x->block[0];
-
-    vp8_intra_prediction_down_copy(x);
-
-    {
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-        b += 1;
-
-        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
-        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
-    }
-
-    vp8_recon_intra_mbuv(rtcd, x);
-
-}
--- a/vp8/common/recon.c
+++ b/vp8/common/recon.c
@@ -108,6 +108,22 @@
 
 void vp8_recon16x16mby(const vp8_recon_rtcd_vtable_t *rtcd, MACROBLOCKD *x)
 {
+#if ARCH_ARM
+    BLOCKD *b = &x->block[0];
+    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+
+    //b = &x->block[4];
+    b += 4;
+    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+
+    //b = &x->block[8];
+    b += 4;
+    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+
+    //b = &x->block[12];
+    b += 4;
+    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+#else
     int i;
 
     for (i = 0; i < 16; i += 4)
@@ -116,10 +132,36 @@
 
         RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
     }
+#endif
 }
 
 void vp8_recon16x16mb(const vp8_recon_rtcd_vtable_t *rtcd, MACROBLOCKD *x)
 {
+#if ARCH_ARM
+    BLOCKD *b = &x->block[0];
+
+    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+    b += 4;
+    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+    b += 4;
+    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+    b += 4;
+    RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+    b += 4;
+
+    //b = &x->block[16];
+
+    RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+    b++;
+    b++;
+    RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+    b++;
+    b++;
+    RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+    b++;
+    b++;
+    RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+#else
     int i;
 
     for (i = 0; i < 16; i += 4)
@@ -135,4 +177,5 @@
 
         RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
     }
+#endif
 }
--- a/vp8/common/reconintra4x4.c
+++ b/vp8/common/reconintra4x4.c
@@ -318,6 +318,74 @@
 
     vp8_intra_prediction_down_copy(x);
 
+#if ARCH_ARM
+    {
+        BLOCKD *b = &x->block[0];
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+        b += 1;
+
+        vp8_predict_intra4x4(b, b->bmi.mode, b->predictor);
+        RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+    }
+#else
     for (i = 0; i < 16; i++)
     {
         BLOCKD *b = &x->block[i];
@@ -325,6 +393,7 @@
         vp8_predict_intra4x4(b, x->block[i].bmi.mode, x->block[i].predictor);
         RECON_INVOKE(rtcd, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
     }
+#endif
 
     vp8_recon_intra_mbuv(rtcd, x);
 
--- a/vp8/vp8_common.mk
+++ b/vp8/vp8_common.mk
@@ -119,7 +119,6 @@
 VP8_COMMON_SRCS-$(HAVE_ARMV6)  += common/arm/filter_arm.c
 VP8_COMMON_SRCS-$(HAVE_ARMV6)  += common/arm/loopfilter_arm.c
 VP8_COMMON_SRCS-$(HAVE_ARMV6)  += common/arm/recon_arm.c
-VP8_COMMON_SRCS-$(HAVE_ARMV6)  += common/arm/reconintra4x4_arm.c
 VP8_COMMON_SRCS-$(HAVE_ARMV6)  += common/arm/reconintra_arm.c
 VP8_COMMON_SRCS-$(HAVE_ARMV6)  += common/arm/vpx_asm_offsets.c