1 files changed, 84 insertions, 0 deletions

diff --git a/apps/plugins/mpegplayer/motion_comp.h b/apps/plugins/mpegplayer/motion_comp.h
new file mode 100644
index 0000000000..2823cc6da1
--- /dev/null
+++ b/apps/plugins/mpegplayer/motion_comp.h
@@ -0,0 +1,84 @@
+/*
+ * motion_comp.h
+ * Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org>
+ * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
+ *
+ * This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
+ * See http://libmpeg2.sourceforge.net/ for updates.
+ *
+ * mpeg2dec is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * mpeg2dec is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#define avg2(a,b) ((a+b+1)>>1)
+#define avg4(a,b,c,d) ((a+b+c+d+2)>>2)
+
+#define predict_o(i) (ref[i])
+#define predict_x(i) (avg2 (ref[i], ref[i+1]))
+#define predict_y(i) (avg2 (ref[i], (ref+stride)[i]))
+#define predict_xy(i) (avg4 (ref[i], ref[i+1], \
+                             (ref+stride)[i], (ref+stride)[i+1]))
+
+#define put(predictor,i) dest[i] = predictor (i)
+#define avg(predictor,i) dest[i] = avg2 (predictor (i), dest[i])
+
+/* mc function template */
+#define MC_FUNC(op, xy) \
+    MC_FUNC_16(op, xy) \
+    MC_FUNC_8(op, xy)
+
+#define MC_FUNC_16(op, xy) \
+    void MC_##op##_##xy##_16 (uint8_t * dest, const uint8_t * ref, \
+                              const int stride, int height)        \
+    {                                                              \
+        do {                                                       \
+            op (predict_##xy, 0);                                  \
+            op (predict_##xy, 1);                                  \
+            op (predict_##xy, 2);                                  \
+            op (predict_##xy, 3);                                  \
+            op (predict_##xy, 4);                                  \
+            op (predict_##xy, 5);                                  \
+            op (predict_##xy, 6);                                  \
+            op (predict_##xy, 7);                                  \
+            op (predict_##xy, 8);                                  \
+            op (predict_##xy, 9);                                  \
+            op (predict_##xy, 10);                                 \
+            op (predict_##xy, 11);                                 \
+            op (predict_##xy, 12);                                 \
+            op (predict_##xy, 13);                                 \
+            op (predict_##xy, 14);                                 \
+            op (predict_##xy, 15);                                 \
+            ref += stride;                                         \
+            dest += stride;                                        \
+        } while (--height);                                        \
+    }
+
+#define MC_FUNC_8(op, xy) \
+    void MC_##op##_##xy##_8 (uint8_t * dest, const uint8_t * ref, \
+                             const int stride, int height)        \
+    {                                                             \
+        do {                                                      \
+            op (predict_##xy, 0);                                 \
+            op (predict_##xy, 1);                                 \
+            op (predict_##xy, 2);                                 \
+            op (predict_##xy, 3);                                 \
+            op (predict_##xy, 4);                                 \
+            op (predict_##xy, 5);                                 \
+            op (predict_##xy, 6);                                 \
+            op (predict_##xy, 7);                                 \
+            ref += stride;                                        \
+            dest += stride;                                       \
+        } while (--height);                                       \
+    }