From 25c899471decb181b03eaf45ba4b4a1c634c4248 Mon Sep 17 00:00:00 2001
From: Stefan Gehrer <stefan.gehrer@gmx.de>
Date: Sat, 7 Jul 2007 06:15:05 +0000
Subject: [PATCH] move modification of intra prediction modes into its own
 inline function

Originally committed as revision 9514 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/cavs.c     | 19 +------------------
 libavcodec/cavs.h     | 24 ++++++++++++++++++++++++
 libavcodec/cavsdata.h |  8 ++++----
 3 files changed, 29 insertions(+), 22 deletions(-)

diff --git a/libavcodec/cavs.c b/libavcodec/cavs.c
index c1b9f49463..e92e869367 100644
--- a/libavcodec/cavs.c
+++ b/libavcodec/cavs.c
@@ -616,24 +616,7 @@ static int decode_mb_i(AVSContext *h, int cbp_code) {
         av_log(h->s.avctx, AV_LOG_ERROR, "illegal intra chroma pred mode\n");
         return -1;
     }
-
-    /* save pred modes before they get modified */
-    h->pred_mode_Y[3] =  h->pred_mode_Y[5];
-    h->pred_mode_Y[6] =  h->pred_mode_Y[8];
-    h->top_pred_Y[h->mbx*2+0] = h->pred_mode_Y[7];
-    h->top_pred_Y[h->mbx*2+1] = h->pred_mode_Y[8];
-
-    /* modify pred modes according to availability of neighbour samples */
-    if(!(h->flags & A_AVAIL)) {
-        modify_pred(left_modifier_l, &h->pred_mode_Y[4] );
-        modify_pred(left_modifier_l, &h->pred_mode_Y[7] );
-        modify_pred(left_modifier_c, &pred_mode_uv );
-    }
-    if(!(h->flags & B_AVAIL)) {
-        modify_pred(top_modifier_l, &h->pred_mode_Y[4] );
-        modify_pred(top_modifier_l, &h->pred_mode_Y[5] );
-        modify_pred(top_modifier_c, &pred_mode_uv );
-    }
+    modify_mb_i(h, &pred_mode_uv);
 
     /* get coded block pattern */
     if(h->pic_type == FF_I_TYPE)
diff --git a/libavcodec/cavs.h b/libavcodec/cavs.h
index a2d050a2b3..2d56d4bb1a 100644
--- a/libavcodec/cavs.h
+++ b/libavcodec/cavs.h
@@ -224,6 +224,10 @@ typedef struct {
     DCTELEM *block;
 } AVSContext;
 
+extern const int_fast8_t ff_left_modifier_l[8];
+extern const int_fast8_t ff_top_modifier_l[8];
+extern const int_fast8_t ff_left_modifier_c[7];
+extern const int_fast8_t ff_top_modifier_c[7];
 extern const vector_t ff_cavs_un_mv;
 
 static inline void load_intra_pred_luma(AVSContext *h, uint8_t *top,
@@ -301,6 +305,26 @@ static inline void modify_pred(const int_fast8_t *mod_table, int *mode) {
     }
 }
 
+static inline void modify_mb_i(AVSContext *h, int *pred_mode_uv) {
+    /* save pred modes before they get modified */
+    h->pred_mode_Y[3] =  h->pred_mode_Y[5];
+    h->pred_mode_Y[6] =  h->pred_mode_Y[8];
+    h->top_pred_Y[h->mbx*2+0] = h->pred_mode_Y[7];
+    h->top_pred_Y[h->mbx*2+1] = h->pred_mode_Y[8];
+
+    /* modify pred modes according to availability of neighbour samples */
+    if(!(h->flags & A_AVAIL)) {
+        modify_pred(ff_left_modifier_l, &h->pred_mode_Y[4] );
+        modify_pred(ff_left_modifier_l, &h->pred_mode_Y[7] );
+        modify_pred(ff_left_modifier_c, pred_mode_uv );
+    }
+    if(!(h->flags & B_AVAIL)) {
+        modify_pred(ff_top_modifier_l, &h->pred_mode_Y[4] );
+        modify_pred(ff_top_modifier_l, &h->pred_mode_Y[5] );
+        modify_pred(ff_top_modifier_c, pred_mode_uv );
+    }
+}
+
 static inline void set_mvs(vector_t *mv, enum block_t size) {
     switch(size) {
     case BLK_16X16:
diff --git a/libavcodec/cavsdata.h b/libavcodec/cavsdata.h
index 2b38f39e1a..86f7e179bb 100644
--- a/libavcodec/cavsdata.h
+++ b/libavcodec/cavsdata.h
@@ -513,9 +513,9 @@ static const uint8_t tc_tab[64] = {
   5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9
 };
 
-static const int_fast8_t left_modifier_l[8] = { 0,-1, 6,-1,-1, 7, 6, 7};
-static const int_fast8_t top_modifier_l[8]  = {-1, 1, 5,-1,-1, 5, 7, 7};
-static const int_fast8_t left_modifier_c[7] = { 5,-1, 2,-1, 6, 5, 6};
-static const int_fast8_t top_modifier_c[7]  = { 4, 1,-1,-1, 4, 6, 6};
+const int_fast8_t ff_left_modifier_l[8] = { 0,-1, 6,-1,-1, 7, 6, 7};
+const int_fast8_t ff_top_modifier_l[8]  = {-1, 1, 5,-1,-1, 5, 7, 7};
+const int_fast8_t ff_left_modifier_c[7] = { 5,-1, 2,-1, 6, 5, 6};
+const int_fast8_t ff_top_modifier_c[7]  = { 4, 1,-1,-1, 4, 6, 6};
 
 #endif // AVCODEC_CAVSDATA_H