mips dsp-ase r2 vp9 decoder extend module optimizations

Adopted again to shepherd through system.

Change-Id: If1b742618a95a2198ae2e30eec4b53ad1f7353e5

build/make/rtcd.sh

@@ -290,9 +290,11 @@ static void setup_rtcd_internal(void)
 {
 $(set_function_pointers c $ALL_ARCHS)
 #if HAVE_DSPR2
+#if CONFIG_VP8
 void dsputil_static_init();
 dsputil_static_init();
 #endif
+#endif
 }
 #endif
 $(common_bottom)

vpx_scale/mips/dspr2/yv12extend_dspr2.c

+/*
+ *  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 "./vpx_config.h"
+#include "vpx_scale/yv12config.h"
+#include "vpx_mem/vpx_mem.h"
+#include "vpx_scale/vpx_scale.h"
+
+#if HAVE_DSPR2
+static void extend_plane(uint8_t *const src, int src_stride,
+                         int width, int height,
+                         int extend_top, int extend_left,
+                         int extend_bottom, int extend_right) {
+  int       i, j;
+  uint8_t   *left_src, *right_src;
+  uint8_t   *left_dst_start, *right_dst_start;
+  uint8_t   *left_dst, *right_dst;
+  uint8_t   *top_src, *bot_src;
+  uint8_t   *top_dst, *bot_dst;
+  uint32_t  left_pix;
+  uint32_t  right_pix;
+  uint32_t  linesize;
+
+  /* copy the left and right most columns out */
+  left_src  = src;
+  right_src = src + width - 1;
+  left_dst_start = src - extend_left;
+  right_dst_start = src + width;
+
+  for (i = height; i--; ) {
+    left_dst  = left_dst_start;
+    right_dst = right_dst_start;
+
+    __asm__ __volatile__ (
+        "lb        %[left_pix],     0(%[left_src])      \n\t"
+        "lb        %[right_pix],    0(%[right_src])     \n\t"
+        "replv.qb  %[left_pix],     %[left_pix]         \n\t"
+        "replv.qb  %[right_pix],    %[right_pix]        \n\t"
+
+        : [left_pix] "=&r" (left_pix), [right_pix] "=&r" (right_pix)
+        : [left_src] "r" (left_src), [right_src] "r" (right_src)
+    );
+
+    for (j = extend_left/4; j--; ) {
+      __asm__ __volatile__ (
+        "sw     %[left_pix],    0(%[left_dst])     \n\t"
+        "sw     %[right_pix],   0(%[right_dst])    \n\t"
+
+        :
+        : [left_dst] "r" (left_dst), [left_pix] "r" (left_pix),
+          [right_dst] "r" (right_dst), [right_pix] "r" (right_pix)
+      );
+
+      left_dst += 4;
+      right_dst += 4;
+    }
+
+    for (j = extend_left%4; j--; ) {
+      __asm__ __volatile__ (
+        "sb     %[left_pix],    0(%[left_dst])     \n\t"
+        "sb     %[right_pix],   0(%[right_dst])     \n\t"
+
+        :
+        : [left_dst] "r" (left_dst), [left_pix] "r" (left_pix),
+          [right_dst] "r" (right_dst), [right_pix] "r" (right_pix)
+      );
+
+      left_dst += 1;
+      right_dst += 1;
+    }
+
+    left_src  += src_stride;
+    right_src += src_stride;
+    left_dst_start += src_stride;
+    right_dst_start += src_stride;
+  }
+
+  /* Now copy the top and bottom lines into each line of the respective
+   * borders
+   */
+  top_src = src - extend_left;
+  bot_src = src + src_stride * (height - 1) - extend_left;
+  top_dst = src + src_stride * (-extend_top) - extend_left;
+  bot_dst = src + src_stride * (height) - extend_left;
+  linesize = extend_left + extend_right + width;
+
+  for (i = 0; i < extend_top; i++) {
+    vpx_memcpy(top_dst, top_src, linesize);
+    top_dst += src_stride;
+  }
+
+  for (i = 0; i < extend_bottom; i++) {
+    vpx_memcpy(bot_dst, bot_src, linesize);
+    bot_dst += src_stride;
+  }
+}
+
+static void extend_frame(YV12_BUFFER_CONFIG *const ybf,
+                         int subsampling_x, int subsampling_y,
+                         int ext_size) {
+  const int c_w = (ybf->y_crop_width + subsampling_x) >> subsampling_x;
+  const int c_h = (ybf->y_crop_height + subsampling_y) >> subsampling_y;
+  const int c_et = ext_size >> subsampling_y;
+  const int c_el = ext_size >> subsampling_x;
+  const int c_eb = (ext_size + ybf->y_height - ybf->y_crop_height +
+                    subsampling_y) >> subsampling_y;
+  const int c_er = (ext_size + ybf->y_width - ybf->y_crop_width +
+                    subsampling_x) >> subsampling_x;
+
+  assert(ybf->y_height - ybf->y_crop_height < 16);
+  assert(ybf->y_width - ybf->y_crop_width < 16);
+  assert(ybf->y_height - ybf->y_crop_height >= 0);
+  assert(ybf->y_width - ybf->y_crop_width >= 0);
+
+  extend_plane(ybf->y_buffer, ybf->y_stride,
+               ybf->y_crop_width, ybf->y_crop_height,
+               ext_size, ext_size,
+               ext_size + ybf->y_height - ybf->y_crop_height,
+               ext_size + ybf->y_width - ybf->y_crop_width);
+
+  extend_plane(ybf->u_buffer, ybf->uv_stride,
+               c_w, c_h, c_et, c_el, c_eb, c_er);
+
+  extend_plane(ybf->v_buffer, ybf->uv_stride,
+               c_w, c_h, c_et, c_el, c_eb, c_er);
+}
+
+void vp9_extend_frame_borders_dspr2(YV12_BUFFER_CONFIG *ybf,
+                                int subsampling_x, int subsampling_y) {
+  extend_frame(ybf, subsampling_x, subsampling_y, ybf->border);
+}
+
+void vp9_extend_frame_inner_borders_dspr2(YV12_BUFFER_CONFIG *ybf,
+                                          int subsampling_x,
+                                          int subsampling_y) {
+  const int inner_bw = (ybf->border > VP9INNERBORDERINPIXELS) ?
+                       VP9INNERBORDERINPIXELS : ybf->border;
+  extend_frame(ybf, subsampling_x, subsampling_y, inner_bw);
+}
+#endif

vpx_scale/vpx_scale.mk

@@ -16,6 +16,9 @@ SCALE_SRCS-$(HAVE_NEON)  += arm/neon/vp8_vpxyv12_copysrcframe_func_neon$(ASM)
 SCALE_SRCS-$(HAVE_NEON)  += arm/neon/vp8_vpxyv12_extendframeborders_neon$(ASM)
 SCALE_SRCS-$(HAVE_NEON)  += arm/neon/yv12extend_arm.c
 
+#mips(dspr2)
+SCALE_SRCS-$(HAVE_DSPR2)  += mips/dspr2/yv12extend_dspr2.c
+
 SCALE_SRCS-no += $(SCALE_SRCS_REMOVE-yes)
 
 $(eval $(call asm_offsets_template,\

vpx_scale/vpx_scale_rtcd.sh

@@ -27,8 +27,8 @@ specialize vpx_yv12_copy_y neon
 
 if [ "$CONFIG_VP9" = "yes" ]; then
     prototype void vp9_extend_frame_borders "struct yv12_buffer_config *ybf, int subsampling_x, int subsampling_y"
-    specialize vp9_extend_frame_borders
+    specialize vp9_extend_frame_borders dspr2
 
     prototype void vp9_extend_frame_inner_borders "struct yv12_buffer_config *ybf, int subsampling_x, int subsampling_y"
-    specialize vp9_extend_frame_inner_borders_c
+    specialize vp9_extend_frame_inner_borders dspr2
 fi