Update libvpx sources to v0.9.2-35-ga8a38bc. ...

source/libvpx/vp8/decoder/arm/neon/idct_blk_neon.c

 /*
- *  Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
+ *  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 "idct.h"
 #include "dequantize.h"
 
+/* place these declarations here because we don't want to maintain them
+ * outside of this scope
+ */
+void idct_dequant_dc_full_2x_neon
+            (short *input, short *dq, unsigned char *pre, unsigned char *dst,
+             int stride, short *dc);
+void idct_dequant_dc_0_2x_neon
+            (short *dc, unsigned char *pre, unsigned char *dst, int stride);
+void idct_dequant_full_2x_neon
+            (short *q, short *dq, unsigned char *pre, unsigned char *dst,
+             int pitch, int stride);
+void idct_dequant_0_2x_neon
+            (short *q, short dq, unsigned char *pre, int pitch,
+             unsigned char *dst, int stride);
+
 void vp8_dequant_dc_idct_add_y_block_neon
             (short *q, short *dq, unsigned char *pre,
              unsigned char *dst, int stride, char *eobs, short *dc)
 {
     int i;
 
     for (i = 0; i < 4; i++)
     {
-        if (eobs[0] > 1)
-            vp8_dequant_dc_idct_add_neon (q, dq, pre, dst, 16, stride, dc[0]);
+        if (((short *)eobs)[0] & 0xfefe)
+            idct_dequant_dc_full_2x_neon (q, dq, pre, dst, stride, dc);
         else
-            vp8_dc_only_idct_add_neon (dc[0], pre, dst, 16, stride);
+            idct_dequant_dc_0_2x_neon(dc, pre, dst, stride);
 
-        if (eobs[1] > 1)
-            vp8_dequant_dc_idct_add_neon (q+16, dq, pre+4, dst+4, 16, stride, dc[1]);
+        if (((short *)eobs)[1] & 0xfefe)
+            idct_dequant_dc_full_2x_neon (q+32, dq, pre+8, dst+8, stride, dc+2);
         else
-            vp8_dc_only_idct_add_neon (dc[1], pre+4, dst+4, 16, stride);
-
-        if (eobs[2] > 1)
-            vp8_dequant_dc_idct_add_neon (q+32, dq, pre+8, dst+8, 16, stride, dc[2]);
-        else
-            vp8_dc_only_idct_add_neon (dc[2], pre+8, dst+8, 16, stride);
-
-        if (eobs[3] > 1)
-            vp8_dequant_dc_idct_add_neon (q+48, dq, pre+12, dst+12, 16, stride, dc[3]);
-        else
-            vp8_dc_only_idct_add_neon (dc[3], pre+12, dst+12, 16, stride);
+            idct_dequant_dc_0_2x_neon(dc+2, pre+8, dst+8, stride);
 
         q    += 64;
         dc   += 4;
         pre  += 64;
         dst  += 4*stride;
         eobs += 4;
     }
 }
 
 void vp8_dequant_idct_add_y_block_neon
             (short *q, short *dq, unsigned char *pre,
              unsigned char *dst, int stride, char *eobs)
 {
     int i;
 
     for (i = 0; i < 4; i++)
     {
-        if (eobs[0] > 1)
-            vp8_dequant_idct_add_neon (q, dq, pre, dst, 16, stride);
+        if (((short *)eobs)[0] & 0xfefe)
+            idct_dequant_full_2x_neon (q, dq, pre, dst, 16, stride);
         else
-        {
-            vp8_dc_only_idct_add_neon (q[0]*dq[0], pre, dst, 16, stride);
-            ((int *)q)[0] = 0;
-        }
+            idct_dequant_0_2x_neon (q, dq[0], pre, 16, dst, stride);
 
-        if (eobs[1] > 1)
-            vp8_dequant_idct_add_neon (q+16, dq, pre+4, dst+4, 16, stride);
+        if (((short *)eobs)[1] & 0xfefe)
+            idct_dequant_full_2x_neon (q+32, dq, pre+8, dst+8, 16, stride);
         else
-        {
-            vp8_dc_only_idct_add_neon (q[16]*dq[0], pre+4, dst+4, 16, stride);
-            ((int *)(q+16))[0] = 0;
-        }
-
-        if (eobs[2] > 1)
-            vp8_dequant_idct_add_neon (q+32, dq, pre+8, dst+8, 16, stride);
-        else
-        {
-            vp8_dc_only_idct_add_neon (q[32]*dq[0], pre+8, dst+8, 16, stride);
-            ((int *)(q+32))[0] = 0;
-        }
-
-        if (eobs[3] > 1)
-            vp8_dequant_idct_add_neon (q+48, dq, pre+12, dst+12, 16, stride);
-        else
-        {
-            vp8_dc_only_idct_add_neon (q[48]*dq[0], pre+12, dst+12, 16, stride);
-            ((int *)(q+48))[0] = 0;
-        }
+            idct_dequant_0_2x_neon (q+32, dq[0], pre+8, 16, dst+8, stride);
 
         q    += 64;
         pre  += 64;
         dst  += 4*stride;
         eobs += 4;
     }
 }
 
 void vp8_dequant_idct_add_uv_block_neon
             (short *q, short *dq, unsigned char *pre,
              unsigned char *dstu, unsigned char *dstv, int stride, char *eobs)
 {
-    int i;
+    if (((short *)eobs)[0] & 0xfefe)
+        idct_dequant_full_2x_neon (q, dq, pre, dstu, 8, stride);
+    else
+        idct_dequant_0_2x_neon (q, dq[0], pre, 8, dstu, stride);
 
-    for (i = 0; i < 2; i++)
-    {
-        if (eobs[0] > 1)
-            vp8_dequant_idct_add_neon (q, dq, pre, dstu, 8, stride);
-        else
-        {
-            vp8_dc_only_idct_add_neon (q[0]*dq[0], pre, dstu, 8, stride);
-            ((int *)q)[0] = 0;
-        }
+    q    += 32;
+    pre  += 32;
+    dstu += 4*stride;
 
-        if (eobs[1] > 1)
-            vp8_dequant_idct_add_neon (q+16, dq, pre+4, dstu+4, 8, stride);
-        else
-        {
-            vp8_dc_only_idct_add_neon (q[16]*dq[0], pre+4, dstu+4, 8, stride);
-            ((int *)(q+16))[0] = 0;
-        }
+    if (((short *)eobs)[1] & 0xfefe)
+        idct_dequant_full_2x_neon (q, dq, pre, dstu, 8, stride);
+    else
+        idct_dequant_0_2x_neon (q, dq[0], pre, 8, dstu, stride);
 
-        q    += 32;
-        pre  += 32;
-        dstu += 4*stride;
-        eobs += 2;
-    }
+    q += 32;
+    pre += 32;
 
-    for (i = 0; i < 2; i++)
-    {
-        if (eobs[0] > 1)
-            vp8_dequant_idct_add_neon (q, dq, pre, dstv, 8, stride);
-        else
-        {
-            vp8_dc_only_idct_add_neon (q[0]*dq[0], pre, dstv, 8, stride);
-            ((int *)q)[0] = 0;
-        }
+    if (((short *)eobs)[2] & 0xfefe)
+        idct_dequant_full_2x_neon (q, dq, pre, dstv, 8, stride);
+    else
+        idct_dequant_0_2x_neon (q, dq[0], pre, 8, dstv, stride);
 
-        if (eobs[1] > 1)
-            vp8_dequant_idct_add_neon (q+16, dq, pre+4, dstv+4, 8, stride);
-        else
-        {
-            vp8_dc_only_idct_add_neon (q[16]*dq[0], pre+4, dstv+4, 8, stride);
-            ((int *)(q+16))[0] = 0;
-        }
+    q    += 32;
+    pre  += 32;
+    dstv += 4*stride;
 
-        q    += 32;
-        pre  += 32;
-        dstv += 4*stride;
-        eobs += 2;
-    }
+    if (((short *)eobs)[3] & 0xfefe)
+        idct_dequant_full_2x_neon (q, dq, pre, dstv, 8, stride);
+    else
+        idct_dequant_0_2x_neon (q, dq[0], pre, 8, dstv, stride);
 }