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Unified Diff: source/libvpx/vp9/common/mips/dspr2/vp9_convolve8_avg_dspr2.c

Issue 54923004: libvpx: Pull from upstream (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/libvpx/
Patch Set: Created 7 years, 2 months ago
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Index: source/libvpx/vp9/common/mips/dspr2/vp9_convolve8_avg_dspr2.c
===================================================================
--- source/libvpx/vp9/common/mips/dspr2/vp9_convolve8_avg_dspr2.c (revision 0)
+++ source/libvpx/vp9/common/mips/dspr2/vp9_convolve8_avg_dspr2.c (revision 0)
@@ -0,0 +1,695 @@
+/*
+ * Copyright (c) 2013 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 <assert.h>
+#include <stdio.h>
+
+#include "./vpx_config.h"
+#include "./vp9_rtcd.h"
+#include "vp9/common/vp9_common.h"
+#include "vpx/vpx_integer.h"
+#include "vpx_ports/mem.h"
+#include "vp9/common/vp9_convolve.h"
+#include "vp9/common/mips/dspr2/vp9_common_dspr2.h"
+
+#if HAVE_DSPR2
+static void convolve_avg_vert_4_dspr2(const uint8_t *src,
+ int32_t src_stride,
+ uint8_t *dst,
+ int32_t dst_stride,
+ const int16_t *filter_y,
+ int32_t w,
+ int32_t h) {
+ int32_t x, y;
+ const uint8_t *src_ptr;
+ uint8_t *dst_ptr;
+ uint8_t *cm = vp9_ff_cropTbl;
+ uint32_t vector4a = 64;
+ uint32_t load1, load2, load3, load4;
+ uint32_t p1, p2;
+ uint32_t n1, n2;
+ uint32_t scratch1, scratch2;
+ uint32_t store1, store2;
+ int32_t vector1b, vector2b, vector3b, vector4b;
+ int32_t Temp1, Temp2;
+
+ vector1b = ((const int32_t *)filter_y)[0];
+ vector2b = ((const int32_t *)filter_y)[1];
+ vector3b = ((const int32_t *)filter_y)[2];
+ vector4b = ((const int32_t *)filter_y)[3];
+
+ src -= 3 * src_stride;
+
+ for (y = h; y--;) {
+ /* prefetch data to cache memory */
+ vp9_prefetch_store(dst + dst_stride);
+
+ for (x = 0; x < w; x += 4) {
+ src_ptr = src + x;
+ dst_ptr = dst + x;
+
+ __asm__ __volatile__ (
+ "ulw %[load1], 0(%[src_ptr]) \n\t"
+ "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
+ "ulw %[load2], 0(%[src_ptr]) \n\t"
+ "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
+ "ulw %[load3], 0(%[src_ptr]) \n\t"
+ "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
+ "ulw %[load4], 0(%[src_ptr]) \n\t"
+
+ "mtlo %[vector4a], $ac0 \n\t"
+ "mtlo %[vector4a], $ac1 \n\t"
+ "mtlo %[vector4a], $ac2 \n\t"
+ "mtlo %[vector4a], $ac3 \n\t"
+ "mthi $zero, $ac0 \n\t"
+ "mthi $zero, $ac1 \n\t"
+ "mthi $zero, $ac2 \n\t"
+ "mthi $zero, $ac3 \n\t"
+
+ "preceu.ph.qbr %[scratch1], %[load1] \n\t"
+ "preceu.ph.qbr %[p1], %[load2] \n\t"
+ "precrq.ph.w %[n1], %[p1], %[scratch1] \n\t" /* pixel 2 */
+ "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */
+ "preceu.ph.qbr %[scratch2], %[load3] \n\t"
+ "preceu.ph.qbr %[p2], %[load4] \n\t"
+ "precrq.ph.w %[n2], %[p2], %[scratch2] \n\t" /* pixel 2 */
+ "append %[p2], %[scratch2], 16 \n\t" /* pixel 1 */
+
+ "dpa.w.ph $ac0, %[p1], %[vector1b] \n\t"
+ "dpa.w.ph $ac0, %[p2], %[vector2b] \n\t"
+ "dpa.w.ph $ac1, %[n1], %[vector1b] \n\t"
+ "dpa.w.ph $ac1, %[n2], %[vector2b] \n\t"
+
+ "preceu.ph.qbl %[scratch1], %[load1] \n\t"
+ "preceu.ph.qbl %[p1], %[load2] \n\t"
+ "precrq.ph.w %[n1], %[p1], %[scratch1] \n\t" /* pixel 2 */
+ "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */
+ "preceu.ph.qbl %[scratch2], %[load3] \n\t"
+ "preceu.ph.qbl %[p2], %[load4] \n\t"
+ "precrq.ph.w %[n2], %[p2], %[scratch2] \n\t" /* pixel 2 */
+ "append %[p2], %[scratch2], 16 \n\t" /* pixel 1 */
+
+ "dpa.w.ph $ac2, %[p1], %[vector1b] \n\t"
+ "dpa.w.ph $ac2, %[p2], %[vector2b] \n\t"
+ "dpa.w.ph $ac3, %[n1], %[vector1b] \n\t"
+ "dpa.w.ph $ac3, %[n2], %[vector2b] \n\t"
+
+ "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
+ "ulw %[load1], 0(%[src_ptr]) \n\t"
+ "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
+ "ulw %[load2], 0(%[src_ptr]) \n\t"
+ "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
+ "ulw %[load3], 0(%[src_ptr]) \n\t"
+ "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
+ "ulw %[load4], 0(%[src_ptr]) \n\t"
+
+ "preceu.ph.qbr %[scratch1], %[load1] \n\t"
+ "preceu.ph.qbr %[p1], %[load2] \n\t"
+ "precrq.ph.w %[n1], %[p1], %[scratch1] \n\t" /* pixel 2 */
+ "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */
+ "preceu.ph.qbr %[scratch2], %[load3] \n\t"
+ "preceu.ph.qbr %[p2], %[load4] \n\t"
+ "precrq.ph.w %[n2], %[p2], %[scratch2] \n\t" /* pixel 2 */
+ "append %[p2], %[scratch2], 16 \n\t" /* pixel 1 */
+
+ "dpa.w.ph $ac0, %[p1], %[vector3b] \n\t"
+ "dpa.w.ph $ac0, %[p2], %[vector4b] \n\t"
+ "extp %[Temp1], $ac0, 31 \n\t"
+ "dpa.w.ph $ac1, %[n1], %[vector3b] \n\t"
+ "dpa.w.ph $ac1, %[n2], %[vector4b] \n\t"
+ "extp %[Temp2], $ac1, 31 \n\t"
+
+ "preceu.ph.qbl %[scratch1], %[load1] \n\t"
+ "preceu.ph.qbl %[p1], %[load2] \n\t"
+ "precrq.ph.w %[n1], %[p1], %[scratch1] \n\t" /* pixel 2 */
+ "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */
+ "lbu %[scratch1], 0(%[dst_ptr]) \n\t"
+ "preceu.ph.qbl %[scratch2], %[load3] \n\t"
+ "preceu.ph.qbl %[p2], %[load4] \n\t"
+ "precrq.ph.w %[n2], %[p2], %[scratch2] \n\t" /* pixel 2 */
+ "append %[p2], %[scratch2], 16 \n\t" /* pixel 1 */
+ "lbu %[scratch2], 1(%[dst_ptr]) \n\t"
+
+ "lbux %[store1], %[Temp1](%[cm]) \n\t"
+ "dpa.w.ph $ac2, %[p1], %[vector3b] \n\t"
+ "dpa.w.ph $ac2, %[p2], %[vector4b] \n\t"
+ "addqh_r.w %[store1], %[store1], %[scratch1] \n\t" /* pixel 1 */
+ "extp %[Temp1], $ac2, 31 \n\t"
+
+ "lbux %[store2], %[Temp2](%[cm]) \n\t"
+ "dpa.w.ph $ac3, %[n1], %[vector3b] \n\t"
+ "dpa.w.ph $ac3, %[n2], %[vector4b] \n\t"
+ "addqh_r.w %[store2], %[store2], %[scratch2] \n\t" /* pixel 2 */
+ "extp %[Temp2], $ac3, 31 \n\t"
+ "lbu %[scratch1], 2(%[dst_ptr]) \n\t"
+
+ "sb %[store1], 0(%[dst_ptr]) \n\t"
+ "sb %[store2], 1(%[dst_ptr]) \n\t"
+ "lbu %[scratch2], 3(%[dst_ptr]) \n\t"
+
+ "lbux %[store1], %[Temp1](%[cm]) \n\t"
+ "lbux %[store2], %[Temp2](%[cm]) \n\t"
+ "addqh_r.w %[store1], %[store1], %[scratch1] \n\t" /* pixel 3 */
+ "addqh_r.w %[store2], %[store2], %[scratch2] \n\t" /* pixel 4 */
+
+ "sb %[store1], 2(%[dst_ptr]) \n\t"
+ "sb %[store2], 3(%[dst_ptr]) \n\t"
+
+ : [load1] "=&r" (load1), [load2] "=&r" (load2),
+ [load3] "=&r" (load3), [load4] "=&r" (load4),
+ [p1] "=&r" (p1), [p2] "=&r" (p2), [n1] "=&r" (n1), [n2] "=&r" (n2),
+ [scratch1] "=&r" (scratch1), [scratch2] "=&r" (scratch2),
+ [Temp1] "=&r" (Temp1), [Temp2] "=&r" (Temp2),
+ [store1] "=&r" (store1), [store2] "=&r" (store2),
+ [src_ptr] "+r" (src_ptr)
+ : [vector1b] "r" (vector1b), [vector2b] "r" (vector2b),
+ [vector3b] "r" (vector3b), [vector4b] "r" (vector4b),
+ [vector4a] "r" (vector4a),
+ [src_stride] "r" (src_stride), [cm] "r" (cm), [dst_ptr] "r" (dst_ptr)
+ );
+ }
+
+ /* Next row... */
+ src += src_stride;
+ dst += dst_stride;
+ }
+}
+
+static void convolve_avg_vert_64_dspr2(const uint8_t *src,
+ int32_t src_stride,
+ uint8_t *dst,
+ int32_t dst_stride,
+ const int16_t *filter_y,
+ int32_t h) {
+ int32_t x, y;
+ const uint8_t *src_ptr;
+ uint8_t *dst_ptr;
+ uint8_t *cm = vp9_ff_cropTbl;
+ uint32_t vector4a = 64;
+ uint32_t load1, load2, load3, load4;
+ uint32_t p1, p2;
+ uint32_t n1, n2;
+ uint32_t scratch1, scratch2;
+ uint32_t store1, store2;
+ int32_t vector1b, vector2b, vector3b, vector4b;
+ int32_t Temp1, Temp2;
+
+ vector1b = ((const int32_t *)filter_y)[0];
+ vector2b = ((const int32_t *)filter_y)[1];
+ vector3b = ((const int32_t *)filter_y)[2];
+ vector4b = ((const int32_t *)filter_y)[3];
+
+ src -= 3 * src_stride;
+
+ for (y = h; y--;) {
+ /* prefetch data to cache memory */
+ vp9_prefetch_store(dst + dst_stride);
+ vp9_prefetch_store(dst + dst_stride + 32);
+
+ for (x = 0; x < 64; x += 4) {
+ src_ptr = src + x;
+ dst_ptr = dst + x;
+
+ __asm__ __volatile__ (
+ "ulw %[load1], 0(%[src_ptr]) \n\t"
+ "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
+ "ulw %[load2], 0(%[src_ptr]) \n\t"
+ "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
+ "ulw %[load3], 0(%[src_ptr]) \n\t"
+ "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
+ "ulw %[load4], 0(%[src_ptr]) \n\t"
+
+ "mtlo %[vector4a], $ac0 \n\t"
+ "mtlo %[vector4a], $ac1 \n\t"
+ "mtlo %[vector4a], $ac2 \n\t"
+ "mtlo %[vector4a], $ac3 \n\t"
+ "mthi $zero, $ac0 \n\t"
+ "mthi $zero, $ac1 \n\t"
+ "mthi $zero, $ac2 \n\t"
+ "mthi $zero, $ac3 \n\t"
+
+ "preceu.ph.qbr %[scratch1], %[load1] \n\t"
+ "preceu.ph.qbr %[p1], %[load2] \n\t"
+ "precrq.ph.w %[n1], %[p1], %[scratch1] \n\t" /* pixel 2 */
+ "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */
+ "preceu.ph.qbr %[scratch2], %[load3] \n\t"
+ "preceu.ph.qbr %[p2], %[load4] \n\t"
+ "precrq.ph.w %[n2], %[p2], %[scratch2] \n\t" /* pixel 2 */
+ "append %[p2], %[scratch2], 16 \n\t" /* pixel 1 */
+
+ "dpa.w.ph $ac0, %[p1], %[vector1b] \n\t"
+ "dpa.w.ph $ac0, %[p2], %[vector2b] \n\t"
+ "dpa.w.ph $ac1, %[n1], %[vector1b] \n\t"
+ "dpa.w.ph $ac1, %[n2], %[vector2b] \n\t"
+
+ "preceu.ph.qbl %[scratch1], %[load1] \n\t"
+ "preceu.ph.qbl %[p1], %[load2] \n\t"
+ "precrq.ph.w %[n1], %[p1], %[scratch1] \n\t" /* pixel 2 */
+ "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */
+ "preceu.ph.qbl %[scratch2], %[load3] \n\t"
+ "preceu.ph.qbl %[p2], %[load4] \n\t"
+ "precrq.ph.w %[n2], %[p2], %[scratch2] \n\t" /* pixel 2 */
+ "append %[p2], %[scratch2], 16 \n\t" /* pixel 1 */
+
+ "dpa.w.ph $ac2, %[p1], %[vector1b] \n\t"
+ "dpa.w.ph $ac2, %[p2], %[vector2b] \n\t"
+ "dpa.w.ph $ac3, %[n1], %[vector1b] \n\t"
+ "dpa.w.ph $ac3, %[n2], %[vector2b] \n\t"
+
+ "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
+ "ulw %[load1], 0(%[src_ptr]) \n\t"
+ "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
+ "ulw %[load2], 0(%[src_ptr]) \n\t"
+ "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
+ "ulw %[load3], 0(%[src_ptr]) \n\t"
+ "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"
+ "ulw %[load4], 0(%[src_ptr]) \n\t"
+
+ "preceu.ph.qbr %[scratch1], %[load1] \n\t"
+ "preceu.ph.qbr %[p1], %[load2] \n\t"
+ "precrq.ph.w %[n1], %[p1], %[scratch1] \n\t" /* pixel 2 */
+ "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */
+ "preceu.ph.qbr %[scratch2], %[load3] \n\t"
+ "preceu.ph.qbr %[p2], %[load4] \n\t"
+ "precrq.ph.w %[n2], %[p2], %[scratch2] \n\t" /* pixel 2 */
+ "append %[p2], %[scratch2], 16 \n\t" /* pixel 1 */
+
+ "dpa.w.ph $ac0, %[p1], %[vector3b] \n\t"
+ "dpa.w.ph $ac0, %[p2], %[vector4b] \n\t"
+ "extp %[Temp1], $ac0, 31 \n\t"
+ "dpa.w.ph $ac1, %[n1], %[vector3b] \n\t"
+ "dpa.w.ph $ac1, %[n2], %[vector4b] \n\t"
+ "extp %[Temp2], $ac1, 31 \n\t"
+
+ "preceu.ph.qbl %[scratch1], %[load1] \n\t"
+ "preceu.ph.qbl %[p1], %[load2] \n\t"
+ "precrq.ph.w %[n1], %[p1], %[scratch1] \n\t" /* pixel 2 */
+ "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */
+ "lbu %[scratch1], 0(%[dst_ptr]) \n\t"
+ "preceu.ph.qbl %[scratch2], %[load3] \n\t"
+ "preceu.ph.qbl %[p2], %[load4] \n\t"
+ "precrq.ph.w %[n2], %[p2], %[scratch2] \n\t" /* pixel 2 */
+ "append %[p2], %[scratch2], 16 \n\t" /* pixel 1 */
+ "lbu %[scratch2], 1(%[dst_ptr]) \n\t"
+
+ "lbux %[store1], %[Temp1](%[cm]) \n\t"
+ "dpa.w.ph $ac2, %[p1], %[vector3b] \n\t"
+ "dpa.w.ph $ac2, %[p2], %[vector4b] \n\t"
+ "addqh_r.w %[store1], %[store1], %[scratch1] \n\t" /* pixel 1 */
+ "extp %[Temp1], $ac2, 31 \n\t"
+
+ "lbux %[store2], %[Temp2](%[cm]) \n\t"
+ "dpa.w.ph $ac3, %[n1], %[vector3b] \n\t"
+ "dpa.w.ph $ac3, %[n2], %[vector4b] \n\t"
+ "addqh_r.w %[store2], %[store2], %[scratch2] \n\t" /* pixel 2 */
+ "extp %[Temp2], $ac3, 31 \n\t"
+ "lbu %[scratch1], 2(%[dst_ptr]) \n\t"
+
+ "sb %[store1], 0(%[dst_ptr]) \n\t"
+ "sb %[store2], 1(%[dst_ptr]) \n\t"
+ "lbu %[scratch2], 3(%[dst_ptr]) \n\t"
+
+ "lbux %[store1], %[Temp1](%[cm]) \n\t"
+ "lbux %[store2], %[Temp2](%[cm]) \n\t"
+ "addqh_r.w %[store1], %[store1], %[scratch1] \n\t" /* pixel 3 */
+ "addqh_r.w %[store2], %[store2], %[scratch2] \n\t" /* pixel 4 */
+
+ "sb %[store1], 2(%[dst_ptr]) \n\t"
+ "sb %[store2], 3(%[dst_ptr]) \n\t"
+
+ : [load1] "=&r" (load1), [load2] "=&r" (load2),
+ [load3] "=&r" (load3), [load4] "=&r" (load4),
+ [p1] "=&r" (p1), [p2] "=&r" (p2), [n1] "=&r" (n1), [n2] "=&r" (n2),
+ [scratch1] "=&r" (scratch1), [scratch2] "=&r" (scratch2),
+ [Temp1] "=&r" (Temp1), [Temp2] "=&r" (Temp2),
+ [store1] "=&r" (store1), [store2] "=&r" (store2),
+ [src_ptr] "+r" (src_ptr)
+ : [vector1b] "r" (vector1b), [vector2b] "r" (vector2b),
+ [vector3b] "r" (vector3b), [vector4b] "r" (vector4b),
+ [vector4a] "r" (vector4a),
+ [src_stride] "r" (src_stride), [cm] "r" (cm), [dst_ptr] "r" (dst_ptr)
+ );
+ }
+
+ /* Next row... */
+ src += src_stride;
+ dst += dst_stride;
+ }
+}
+
+void vp9_convolve8_avg_vert_dspr2(const uint8_t *src, ptrdiff_t src_stride,
+ uint8_t *dst, ptrdiff_t dst_stride,
+ const int16_t *filter_x, int x_step_q4,
+ const int16_t *filter_y, int y_step_q4,
+ int w, int h) {
+ if (((const int32_t *)filter_y)[1] == 0x800000) {
+ vp9_convolve_avg(src, src_stride,
+ dst, dst_stride,
+ filter_x, x_step_q4,
+ filter_y, y_step_q4,
+ w, h);
+ } else if (((const int32_t *)filter_y)[0] == 0) {
+ vp9_convolve2_avg_vert_dspr2(src, src_stride,
+ dst, dst_stride,
+ filter_x, x_step_q4,
+ filter_y, y_step_q4,
+ w, h);
+ } else {
+ if (16 == y_step_q4) {
+ uint32_t pos = 38;
+
+ /* bit positon for extract from acc */
+ __asm__ __volatile__ (
+ "wrdsp %[pos], 1 \n\t"
+ :
+ : [pos] "r" (pos)
+ );
+
+ vp9_prefetch_store(dst);
+
+ switch (w) {
+ case 4:
+ case 8:
+ case 16:
+ case 32:
+ convolve_avg_vert_4_dspr2(src, src_stride,
+ dst, dst_stride,
+ filter_y, w, h);
+ break;
+ case 64:
+ vp9_prefetch_store(dst + 32);
+ convolve_avg_vert_64_dspr2(src, src_stride,
+ dst, dst_stride,
+ filter_y, h);
+ break;
+ default:
+ vp9_convolve8_avg_vert_c(src, src_stride,
+ dst, dst_stride,
+ filter_x, x_step_q4,
+ filter_y, y_step_q4,
+ w, h);
+ break;
+ }
+ } else {
+ vp9_convolve8_avg_vert_c(src, src_stride,
+ dst, dst_stride,
+ filter_x, x_step_q4,
+ filter_y, y_step_q4,
+ w, h);
+ }
+ }
+}
+
+void vp9_convolve8_avg_dspr2(const uint8_t *src, ptrdiff_t src_stride,
+ uint8_t *dst, ptrdiff_t dst_stride,
+ const int16_t *filter_x, int x_step_q4,
+ const int16_t *filter_y, int y_step_q4,
+ int w, int h) {
+ /* Fixed size intermediate buffer places limits on parameters. */
+ DECLARE_ALIGNED_ARRAY(32, uint8_t, temp, 64 * 135);
+ int32_t intermediate_height = ((h * y_step_q4) >> 4) + 7;
+
+ assert(w <= 64);
+ assert(h <= 64);
+
+ if (intermediate_height < h)
+ intermediate_height = h;
+
+ if (x_step_q4 != 16 || y_step_q4 != 16)
+ return vp9_convolve8_avg_c(src, src_stride,
+ dst, dst_stride,
+ filter_x, x_step_q4,
+ filter_y, y_step_q4,
+ w, h);
+
+ vp9_convolve8_horiz(src - (src_stride * 3), src_stride,
+ temp, 64,
+ filter_x, x_step_q4,
+ filter_y, y_step_q4,
+ w, intermediate_height);
+
+ vp9_convolve8_avg_vert(temp + 64 * 3, 64,
+ dst, dst_stride,
+ filter_x, x_step_q4,
+ filter_y, y_step_q4,
+ w, h);
+}
+
+void vp9_convolve_avg_dspr2(const uint8_t *src, ptrdiff_t src_stride,
+ uint8_t *dst, ptrdiff_t dst_stride,
+ const int16_t *filter_x, int filter_x_stride,
+ const int16_t *filter_y, int filter_y_stride,
+ int w, int h) {
+ int x, y;
+ uint32_t tp1, tp2, tn1;
+ uint32_t tp3, tp4, tn2;
+
+ /* prefetch data to cache memory */
+ vp9_prefetch_load(src);
+ vp9_prefetch_load(src + 32);
+ vp9_prefetch_store(dst);
+
+ switch (w) {
+ case 4:
+ /* 1 word storage */
+ for (y = h; y--; ) {
+ vp9_prefetch_load(src + src_stride);
+ vp9_prefetch_load(src + src_stride + 32);
+ vp9_prefetch_store(dst + dst_stride);
+
+ __asm__ __volatile__ (
+ "ulw %[tp1], 0(%[src]) \n\t"
+ "ulw %[tp2], 0(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "sw %[tn1], 0(%[dst]) \n\t" /* store */
+
+ : [tn1] "=&r" (tn1), [tp1] "=&r" (tp1),
+ [tp2] "=&r" (tp2)
+ : [src] "r" (src), [dst] "r" (dst)
+ );
+
+ src += src_stride;
+ dst += dst_stride;
+ }
+ break;
+ case 8:
+ /* 2 word storage */
+ for (y = h; y--; ) {
+ vp9_prefetch_load(src + src_stride);
+ vp9_prefetch_load(src + src_stride + 32);
+ vp9_prefetch_store(dst + dst_stride);
+
+ __asm__ __volatile__ (
+ "ulw %[tp1], 0(%[src]) \n\t"
+ "ulw %[tp2], 0(%[dst]) \n\t"
+ "ulw %[tp3], 4(%[src]) \n\t"
+ "ulw %[tp4], 4(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "sw %[tn1], 0(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 4(%[dst]) \n\t" /* store */
+
+ : [tp1] "=&r" (tp1), [tp2] "=&r" (tp2),
+ [tp3] "=&r" (tp3), [tp4] "=&r" (tp4),
+ [tn1] "=&r" (tn1), [tn2] "=&r" (tn2)
+ : [src] "r" (src), [dst] "r" (dst)
+ );
+
+ src += src_stride;
+ dst += dst_stride;
+ }
+ break;
+ case 16:
+ /* 4 word storage */
+ for (y = h; y--; ) {
+ vp9_prefetch_load(src + src_stride);
+ vp9_prefetch_load(src + src_stride + 32);
+ vp9_prefetch_store(dst + dst_stride);
+
+ __asm__ __volatile__ (
+ "ulw %[tp1], 0(%[src]) \n\t"
+ "ulw %[tp2], 0(%[dst]) \n\t"
+ "ulw %[tp3], 4(%[src]) \n\t"
+ "ulw %[tp4], 4(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "ulw %[tp1], 8(%[src]) \n\t"
+ "ulw %[tp2], 8(%[dst]) \n\t"
+ "sw %[tn1], 0(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 4(%[dst]) \n\t" /* store */
+ "ulw %[tp3], 12(%[src]) \n\t"
+ "ulw %[tp4], 12(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "sw %[tn1], 8(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 12(%[dst]) \n\t" /* store */
+
+ : [tp1] "=&r" (tp1), [tp2] "=&r" (tp2),
+ [tp3] "=&r" (tp3), [tp4] "=&r" (tp4),
+ [tn1] "=&r" (tn1), [tn2] "=&r" (tn2)
+ : [src] "r" (src), [dst] "r" (dst)
+ );
+
+ src += src_stride;
+ dst += dst_stride;
+ }
+ break;
+ case 32:
+ /* 8 word storage */
+ for (y = h; y--; ) {
+ vp9_prefetch_load(src + src_stride);
+ vp9_prefetch_load(src + src_stride + 32);
+ vp9_prefetch_store(dst + dst_stride);
+
+ __asm__ __volatile__ (
+ "ulw %[tp1], 0(%[src]) \n\t"
+ "ulw %[tp2], 0(%[dst]) \n\t"
+ "ulw %[tp3], 4(%[src]) \n\t"
+ "ulw %[tp4], 4(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "ulw %[tp1], 8(%[src]) \n\t"
+ "ulw %[tp2], 8(%[dst]) \n\t"
+ "sw %[tn1], 0(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 4(%[dst]) \n\t" /* store */
+ "ulw %[tp3], 12(%[src]) \n\t"
+ "ulw %[tp4], 12(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "ulw %[tp1], 16(%[src]) \n\t"
+ "ulw %[tp2], 16(%[dst]) \n\t"
+ "sw %[tn1], 8(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 12(%[dst]) \n\t" /* store */
+ "ulw %[tp3], 20(%[src]) \n\t"
+ "ulw %[tp4], 20(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "ulw %[tp1], 24(%[src]) \n\t"
+ "ulw %[tp2], 24(%[dst]) \n\t"
+ "sw %[tn1], 16(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 20(%[dst]) \n\t" /* store */
+ "ulw %[tp3], 28(%[src]) \n\t"
+ "ulw %[tp4], 28(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "sw %[tn1], 24(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 28(%[dst]) \n\t" /* store */
+
+ : [tp1] "=&r" (tp1), [tp2] "=&r" (tp2),
+ [tp3] "=&r" (tp3), [tp4] "=&r" (tp4),
+ [tn1] "=&r" (tn1), [tn2] "=&r" (tn2)
+ : [src] "r" (src), [dst] "r" (dst)
+ );
+
+ src += src_stride;
+ dst += dst_stride;
+ }
+ break;
+ case 64:
+ vp9_prefetch_load(src + 64);
+ vp9_prefetch_store(dst + 32);
+
+ /* 16 word storage */
+ for (y = h; y--; ) {
+ vp9_prefetch_load(src + src_stride);
+ vp9_prefetch_load(src + src_stride + 32);
+ vp9_prefetch_load(src + src_stride + 64);
+ vp9_prefetch_store(dst + dst_stride);
+ vp9_prefetch_store(dst + dst_stride + 32);
+
+ __asm__ __volatile__ (
+ "ulw %[tp1], 0(%[src]) \n\t"
+ "ulw %[tp2], 0(%[dst]) \n\t"
+ "ulw %[tp3], 4(%[src]) \n\t"
+ "ulw %[tp4], 4(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "ulw %[tp1], 8(%[src]) \n\t"
+ "ulw %[tp2], 8(%[dst]) \n\t"
+ "sw %[tn1], 0(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 4(%[dst]) \n\t" /* store */
+ "ulw %[tp3], 12(%[src]) \n\t"
+ "ulw %[tp4], 12(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "ulw %[tp1], 16(%[src]) \n\t"
+ "ulw %[tp2], 16(%[dst]) \n\t"
+ "sw %[tn1], 8(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 12(%[dst]) \n\t" /* store */
+ "ulw %[tp3], 20(%[src]) \n\t"
+ "ulw %[tp4], 20(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "ulw %[tp1], 24(%[src]) \n\t"
+ "ulw %[tp2], 24(%[dst]) \n\t"
+ "sw %[tn1], 16(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 20(%[dst]) \n\t" /* store */
+ "ulw %[tp3], 28(%[src]) \n\t"
+ "ulw %[tp4], 28(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "ulw %[tp1], 32(%[src]) \n\t"
+ "ulw %[tp2], 32(%[dst]) \n\t"
+ "sw %[tn1], 24(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 28(%[dst]) \n\t" /* store */
+ "ulw %[tp3], 36(%[src]) \n\t"
+ "ulw %[tp4], 36(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "ulw %[tp1], 40(%[src]) \n\t"
+ "ulw %[tp2], 40(%[dst]) \n\t"
+ "sw %[tn1], 32(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 36(%[dst]) \n\t" /* store */
+ "ulw %[tp3], 44(%[src]) \n\t"
+ "ulw %[tp4], 44(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "ulw %[tp1], 48(%[src]) \n\t"
+ "ulw %[tp2], 48(%[dst]) \n\t"
+ "sw %[tn1], 40(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 44(%[dst]) \n\t" /* store */
+ "ulw %[tp3], 52(%[src]) \n\t"
+ "ulw %[tp4], 52(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "ulw %[tp1], 56(%[src]) \n\t"
+ "ulw %[tp2], 56(%[dst]) \n\t"
+ "sw %[tn1], 48(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 52(%[dst]) \n\t" /* store */
+ "ulw %[tp3], 60(%[src]) \n\t"
+ "ulw %[tp4], 60(%[dst]) \n\t"
+ "adduh_r.qb %[tn1], %[tp2], %[tp1] \n\t" /* average */
+ "sw %[tn1], 56(%[dst]) \n\t" /* store */
+ "adduh_r.qb %[tn2], %[tp3], %[tp4] \n\t" /* average */
+ "sw %[tn2], 60(%[dst]) \n\t" /* store */
+
+ : [tp1] "=&r" (tp1), [tp2] "=&r" (tp2),
+ [tp3] "=&r" (tp3), [tp4] "=&r" (tp4),
+ [tn1] "=&r" (tn1), [tn2] "=&r" (tn2)
+ : [src] "r" (src), [dst] "r" (dst)
+ );
+
+ src += src_stride;
+ dst += dst_stride;
+ }
+ break;
+ default:
+ for (y = h; y > 0; --y) {
+ for (x = 0; x < w; ++x) {
+ dst[x] = (dst[x] + src[x] + 1) >> 1;
+ }
+
+ src += src_stride;
+ dst += dst_stride;
+ }
+ break;
+ }
+}
+#endif
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