1 files changed, 68 insertions, 0 deletions
diff --git a/media/libvpx/vp8/common/mbpitch.c b/media/libvpx/vp8/common/mbpitch.c
new file mode 100644
index 000000000..32e1b6640
--- /dev/null
+++ b/media/libvpx/vp8/common/mbpitch.c
@@ -0,0 +1,68 @@
+/*
+ *  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 "blockd.h"
+
+void vp8_setup_block_dptrs(MACROBLOCKD *x)
+{
+    int r, c;
+
+    for (r = 0; r < 4; r++)
+    {
+        for (c = 0; c < 4; c++)
+        {
+            x->block[r*4+c].predictor = x->predictor + r * 4 * 16 + c * 4;
+        }
+    }
+
+    for (r = 0; r < 2; r++)
+    {
+        for (c = 0; c < 2; c++)
+        {
+            x->block[16+r*2+c].predictor = x->predictor + 256 + r * 4 * 8 + c * 4;
+
+        }
+    }
+
+    for (r = 0; r < 2; r++)
+    {
+        for (c = 0; c < 2; c++)
+        {
+            x->block[20+r*2+c].predictor = x->predictor + 320 + r * 4 * 8 + c * 4;
+
+        }
+    }
+
+    for (r = 0; r < 25; r++)
+    {
+        x->block[r].qcoeff  = x->qcoeff  + r * 16;
+        x->block[r].dqcoeff = x->dqcoeff + r * 16;
+        x->block[r].eob     = x->eobs + r;
+    }
+}
+
+void vp8_build_block_doffsets(MACROBLOCKD *x)
+{
+    int block;
+
+    for (block = 0; block < 16; block++) /* y blocks */
+    {
+        x->block[block].offset =
+            (block >> 2) * 4 * x->dst.y_stride + (block & 3) * 4;
+    }
+
+    for (block = 16; block < 20; block++) /* U and V blocks */
+    {
+        x->block[block+4].offset =
+        x->block[block].offset =
+            ((block - 16) >> 1) * 4 * x->dst.uv_stride + (block & 1) * 4;
+    }
+}