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authorMichael Sevakis <jethead71@rockbox.org>2011-02-22 21:44:15 +0000
committerMichael Sevakis <jethead71@rockbox.org>2011-02-22 21:44:15 +0000
commit652463ecc0085c9e04da17631aa1fdb2703eee80 (patch)
treea05cac6777f599f0e8cabc2306e4f3af69428254 /apps/plugins/mpegplayer/libmpeg2/motion_comp.h
parentec6e64ce9011281e6ecbbc0d93b91ce4db2f42dc (diff)
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mpegplayer: Move libmpeg2 files into their own subdirectory so things are less cluttered.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29381 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/plugins/mpegplayer/libmpeg2/motion_comp.h')
-rw-r--r--apps/plugins/mpegplayer/libmpeg2/motion_comp.h86
1 files changed, 86 insertions, 0 deletions
diff --git a/apps/plugins/mpegplayer/libmpeg2/motion_comp.h b/apps/plugins/mpegplayer/libmpeg2/motion_comp.h
new file mode 100644
index 0000000000..4737e72cab
--- /dev/null
+++ b/apps/plugins/mpegplayer/libmpeg2/motion_comp.h
@@ -0,0 +1,86 @@
+/*
+ * 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
+ *
+ * $Id$
+ */
+
+
+#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); \
+ }