From: Jim Bankoski <jimbankoski@google.com>
Date: Wed, 10 Jul 2013 14:26:08 +0000 (-0700)
Subject: mi_width_log2 & mi_height_log2
X-Git-Tag: v1.3.0~919
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=863204e64dbd8366b7e9a0f67f1f026473a0a145;p=platform%2Fupstream%2Flibvpx.git

mi_width_log2 & mi_height_log2

converted to lookup to avoid unnecessary code

Change-Id: I2ee6a01f06984cc2c4ba74b3fffd215318f749d2
---

diff --git a/vp9/common/vp9_blockd.h b/vp9/common/vp9_blockd.h
index 8c58276..7c7ae6d 100644
--- a/vp9/common/vp9_blockd.h
+++ b/vp9/common/vp9_blockd.h
@@ -149,20 +149,11 @@ static INLINE int b_height_log2(BLOCK_SIZE_TYPE sb_type) {
 }
 
 static INLINE int mi_width_log2(BLOCK_SIZE_TYPE sb_type) {
-  int a = b_width_log2(sb_type) - 1;
-  // align 4x4 block to mode_info
-  if (a < 0)
-    a = 0;
-  assert(a >= 0);
-  return a;
+  return mi_width_log2_lookup[sb_type];
 }
 
 static INLINE int mi_height_log2(BLOCK_SIZE_TYPE sb_type) {
-  int a = b_height_log2(sb_type) - 1;
-  if (a < 0)
-    a = 0;
-  assert(a >= 0);
-  return a;
+  return mi_height_log2_lookup[sb_type];
 }
 
 typedef struct {
diff --git a/vp9/common/vp9_common_data.c b/vp9/common/vp9_common_data.c
index feb107e..57e3d2f 100644
--- a/vp9/common/vp9_common_data.c
+++ b/vp9/common/vp9_common_data.c
@@ -15,3 +15,8 @@ const int b_width_log2_lookup[BLOCK_SIZE_TYPES] =
   {0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4};
 const int b_height_log2_lookup[BLOCK_SIZE_TYPES] =
   {0, 1, 0, 1, 2, 1, 2, 3, 2, 3, 4, 3, 4};
+// Log 2 conversion lookup tables for modeinfo width and height
+const int mi_width_log2_lookup[BLOCK_SIZE_TYPES] =
+  {0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3};
+const int mi_height_log2_lookup[BLOCK_SIZE_TYPES] =
+  {0, 0, 0, 0, 1, 0, 1, 2, 1, 2, 3, 2, 3};
diff --git a/vp9/common/vp9_common_data.h b/vp9/common/vp9_common_data.h
index f080fdd..7f9f904 100644
--- a/vp9/common/vp9_common_data.h
+++ b/vp9/common/vp9_common_data.h
@@ -15,5 +15,7 @@
 
 extern const int b_width_log2_lookup[BLOCK_SIZE_TYPES];
 extern const int b_height_log2_lookup[BLOCK_SIZE_TYPES];
+extern const int mi_width_log2_lookup[BLOCK_SIZE_TYPES];
+extern const int mi_height_log2_lookup[BLOCK_SIZE_TYPES];
 
 #endif    // VP9_COMMON_VP9_COMMON_DATA_H