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authorDiego 'Flameeyes' Pettenò <flameeyes@gmail.com>2006-12-02 01:19:48 +0000
committerDiego 'Flameeyes' Pettenò <flameeyes@gmail.com>2006-12-02 01:19:48 +0000
commit0ea721f7ce81357bc4ec6eea609cd50482c3d15b (patch)
tree25a0871cb3c06f9716acf9c204192d548f214048 /contrib/ffmpeg/libavcodec/bfin
parentd8ec380876e7f697ba609546d61757ab3f2d8715 (diff)
downloadxine-lib-0ea721f7ce81357bc4ec6eea609cd50482c3d15b.tar.gz
xine-lib-0ea721f7ce81357bc4ec6eea609cd50482c3d15b.tar.bz2
Start working on a branch where FFmpeg is not copied, patched and carved to be built with automake but instead imported inline and built using its own build system. This is an import of a slightly modified FFmpeg current tree. xine-lib builds, install and run fine with it, but there are of course plenty of things that needs to be fixed before it can even be considered for a 1.2.x series. Work will continue in the next days of course.
CVS patchset: 8397 CVS date: 2006/12/02 01:19:48
Diffstat (limited to 'contrib/ffmpeg/libavcodec/bfin')
-rw-r--r--contrib/ffmpeg/libavcodec/bfin/dsputil_bfin.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libavcodec/bfin/dsputil_bfin.c b/contrib/ffmpeg/libavcodec/bfin/dsputil_bfin.c
new file mode 100644
index 000000000..196ef6fea
--- /dev/null
+++ b/contrib/ffmpeg/libavcodec/bfin/dsputil_bfin.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2006 Michael Benjamin
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "../avcodec.h"
+#include "../dsputil.h"
+
+static int sad8x8_bfin( void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h )
+{
+ int sum;
+ __asm__ __volatile__ (
+ "P0 = %1;" // blk1
+ "P1 = %2;" // blk2
+ "P2 = %3;\n" // h
+ "I0 = P0;"
+ "I1 = P1;\n"
+ "A0 = 0;"
+ "A1 = 0;\n"
+ "M0 = P2;\n"
+ "P3 = 32;\n"
+ "LSETUP (sad8x8LoopBegin, sad8x8LoopEnd) LC0=P3;\n"
+ "sad8x8LoopBegin:\n"
+ " DISALGNEXCPT || R0 = [I0] || R2 = [I1];\n"
+ " DISALGNEXCPT || R1 = [I0++] || R3 = [I1++];\n"
+ "sad8x8LoopEnd:\n"
+ " SAA ( R1:0 , R3:2 );\n"
+ "R3 = A1.L + A1.H, R2 = A0.L + A0.H;\n"
+ "%0 = R2 + R3 (S);\n"
+ : "=&d" (sum)
+ : "m"(blk1), "m"(blk2), "m"(h)
+ : "P0","P1","P2","I0","I1","A0","A1","R0","R1","R2","R3");
+ return sum;
+}
+
+void dsputil_init_bfin( DSPContext* c, AVCodecContext *avctx )
+{
+ c->pix_abs[1][0] = sad8x8_bfin;
+ c->sad[1] = sad8x8_bfin;
+}