Fix splitmv/compound prediction when eightpel is enabled.

Change-Id: I9d6083d54e3d478ec20dc6dc48d3f45eb5c7e16b

vp8/common/filter.c

@@ -860,6 +860,26 @@ static void filter_block2d_8
     filter_block2d_second_pass_8(FData + 4*(Interp_Extend-1), output_ptr, output_pitch, 4, 4, 4, 4, VFilter);
 }
 
+static void filter_block2d_avg_8
+(
+    unsigned char  *src_ptr,
+    unsigned char  *output_ptr,
+    unsigned int src_pixels_per_line,
+    int output_pitch,
+    const short  *HFilter,
+    const short  *VFilter
+)
+{
+    int FData[(3+Interp_Extend*2)*4]; /* Temp data buffer used in filtering */
+
+    /* First filter 1-D horizontally... */
+    filter_block2d_first_pass_8(src_ptr - ((Interp_Extend-1) * src_pixels_per_line), FData, src_pixels_per_line, 1,
+                                3+Interp_Extend*2, 4, HFilter);
+
+    /* then filter verticaly... */
+    filter_block2d_second_pass_avg_8(FData + 4*(Interp_Extend-1), output_ptr, output_pitch, 4, 4, 4, 4, VFilter);
+}
+
 void vp8_eighttap_predict_c
 (
     unsigned char  *src_ptr,
@@ -879,6 +899,25 @@ void vp8_eighttap_predict_c
     filter_block2d_8(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter);
 }
 
+void vp8_eighttap_predict_avg4x4_c
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+    const short  *HFilter;
+    const short  *VFilter;
+
+    HFilter = vp8_sub_pel_filters_8[xoffset];   /* 8 tap */
+    VFilter = vp8_sub_pel_filters_8[yoffset];   /* 8 tap */
+
+    filter_block2d_avg_8(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter);
+}
+
 void vp8_eighttap_predict_sharp_c
 (
     unsigned char  *src_ptr,
@@ -898,6 +937,25 @@ void vp8_eighttap_predict_sharp_c
     filter_block2d_8(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter);
 }
 
+void vp8_eighttap_predict_avg4x4_sharp_c
+(
+    unsigned char  *src_ptr,
+    int   src_pixels_per_line,
+    int  xoffset,
+    int  yoffset,
+    unsigned char *dst_ptr,
+    int dst_pitch
+)
+{
+    const short  *HFilter;
+    const short  *VFilter;
+
+    HFilter = vp8_sub_pel_filters_8s[xoffset];   /* 8 tap */
+    VFilter = vp8_sub_pel_filters_8s[yoffset];   /* 8 tap */
+
+    filter_block2d_avg_8(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter);
+}
+
 void vp8_eighttap_predict8x8_c
 (
     unsigned char  *src_ptr,

vp8/common/generic/systemdependent.c

@@ -84,12 +84,14 @@ void vp8_machine_specific_config(VP8_COMMON *ctx)
     rtcd->subpix.eighttap8x8         = vp8_eighttap_predict8x8_c;
     rtcd->subpix.eighttap_avg16x16   = vp8_eighttap_predict_avg16x16_c;
     rtcd->subpix.eighttap_avg8x8     = vp8_eighttap_predict_avg8x8_c;
+    rtcd->subpix.eighttap_avg4x4     = vp8_eighttap_predict_avg4x4_c;
     rtcd->subpix.eighttap8x4         = vp8_eighttap_predict8x4_c;
     rtcd->subpix.eighttap4x4         = vp8_eighttap_predict_c;
     rtcd->subpix.eighttap16x16_sharp       = vp8_eighttap_predict16x16_sharp_c;
     rtcd->subpix.eighttap8x8_sharp         = vp8_eighttap_predict8x8_sharp_c;
     rtcd->subpix.eighttap_avg16x16_sharp   = vp8_eighttap_predict_avg16x16_sharp_c;
     rtcd->subpix.eighttap_avg8x8_sharp     = vp8_eighttap_predict_avg8x8_sharp_c;
+    rtcd->subpix.eighttap_avg4x4_sharp     = vp8_eighttap_predict_avg4x4_sharp_c;
     rtcd->subpix.eighttap8x4_sharp         = vp8_eighttap_predict8x4_sharp_c;
     rtcd->subpix.eighttap4x4_sharp         = vp8_eighttap_predict_sharp_c;
 #endif

vp8/common/subpixel.h

@@ -89,6 +89,11 @@ extern prototype_subpixel_predict(vp8_subpix_eighttap8x4);
 #endif
 extern prototype_subpixel_predict(vp8_subpix_eighttap4x4);
 
+#ifndef vp8_subpix_eighttap_avg4x4
+#define vp8_subpix_eighttap_avg4x4 vp8_eighttap_predict_avg4x4_c
+#endif
+extern prototype_subpixel_predict(vp8_subpix_eighttap_avg4x4);
+
 #ifndef vp8_subpix_eighttap16x16_sharp
 #define vp8_subpix_eighttap16x16_sharp vp8_eighttap_predict16x16_sharp_c
 #endif
@@ -118,6 +123,11 @@ extern prototype_subpixel_predict(vp8_subpix_eighttap8x4_sharp);
 #define vp8_subpix_eighttap4x4_sharp vp8_eighttap_predict_sharp_c
 #endif
 extern prototype_subpixel_predict(vp8_subpix_eighttap4x4_sharp);
+
+#ifndef vp8_subpix_eighttap_avg4x4_sharp
+#define vp8_subpix_eighttap_avg4x4_sharp vp8_eighttap_predict_avg4x4_sharp_c
+#endif
+extern prototype_subpixel_predict(vp8_subpix_eighttap_avg4x4_sharp);
 #endif  /* CONFIG_ENAHNCED_INTERP */
 
 #ifndef vp8_subpix_bilinear16x16
@@ -163,12 +173,14 @@ typedef struct
     vp8_subpix_fn_t  eighttap8x8;
     vp8_subpix_fn_t  eighttap_avg16x16;
     vp8_subpix_fn_t  eighttap_avg8x8;
+    vp8_subpix_fn_t  eighttap_avg4x4;
     vp8_subpix_fn_t  eighttap8x4;
     vp8_subpix_fn_t  eighttap4x4;
     vp8_subpix_fn_t  eighttap16x16_sharp;
     vp8_subpix_fn_t  eighttap8x8_sharp;
     vp8_subpix_fn_t  eighttap_avg16x16_sharp;
     vp8_subpix_fn_t  eighttap_avg8x8_sharp;
+    vp8_subpix_fn_t  eighttap_avg4x4_sharp;
     vp8_subpix_fn_t  eighttap8x4_sharp;
     vp8_subpix_fn_t  eighttap4x4_sharp;
 #endif

vp8/decoder/decodframe.c

@@ -729,6 +729,7 @@ static void init_frame(VP8D_COMP *pbi)
                 RTCD_VTABLE(subpix), eighttap_avg8x8);
             xd->subpixel_predict_avg16x16 = SUBPIX_INVOKE(
                 RTCD_VTABLE(subpix), eighttap_avg16x16);
+            xd->subpixel_predict_avg  = SUBPIX_INVOKE(RTCD_VTABLE(subpix), eighttap_avg4x4);
         }
         else if (pc->mcomp_filter_type == EIGHTTAP_SHARP)
         {
@@ -736,6 +737,7 @@ static void init_frame(VP8D_COMP *pbi)
             xd->subpixel_predict8x4   = SUBPIX_INVOKE(RTCD_VTABLE(subpix), eighttap8x4_sharp);
             xd->subpixel_predict8x8   = SUBPIX_INVOKE(RTCD_VTABLE(subpix), eighttap8x8_sharp);
             xd->subpixel_predict16x16 = SUBPIX_INVOKE(RTCD_VTABLE(subpix), eighttap16x16_sharp);
+            xd->subpixel_predict_avg  = SUBPIX_INVOKE(RTCD_VTABLE(subpix), eighttap_avg4x4_sharp);
             xd->subpixel_predict_avg8x8 = SUBPIX_INVOKE(
                 RTCD_VTABLE(subpix), eighttap_avg8x8_sharp);
             xd->subpixel_predict_avg16x16 = SUBPIX_INVOKE(

vp8/encoder/encodeframe.c

@@ -1105,6 +1105,8 @@ static void encode_frame_internal(VP8_COMP *cpi)
                                         &cpi->common.rtcd.subpix, eighttap8x8);
         xd->subpixel_predict16x16   = SUBPIX_INVOKE(
                                         &cpi->common.rtcd.subpix, eighttap16x16);
+        xd->subpixel_predict_avg    = SUBPIX_INVOKE(
+                                        &cpi->common.rtcd.subpix, eighttap_avg4x4);
         xd->subpixel_predict_avg8x8 = SUBPIX_INVOKE(
                                         &cpi->common.rtcd.subpix, eighttap_avg8x8);
         xd->subpixel_predict_avg16x16 = SUBPIX_INVOKE(
@@ -1120,6 +1122,8 @@ static void encode_frame_internal(VP8_COMP *cpi)
                                         &cpi->common.rtcd.subpix, eighttap8x8_sharp);
         xd->subpixel_predict16x16   = SUBPIX_INVOKE(
                                         &cpi->common.rtcd.subpix, eighttap16x16_sharp);
+        xd->subpixel_predict_avg    = SUBPIX_INVOKE(
+                                        &cpi->common.rtcd.subpix, eighttap_avg4x4_sharp);
         xd->subpixel_predict_avg8x8 = SUBPIX_INVOKE(
                                         &cpi->common.rtcd.subpix, eighttap_avg8x8_sharp);
         xd->subpixel_predict_avg16x16 = SUBPIX_INVOKE(