bfin dsputils, basic pixel operations sads, diffs, motion compensation

and standard IEEE 8x8 block transforms
patch by Marc Hoffman, mmh pleasantst com

Originally committed as revision 8594 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/Makefile

@@ -394,6 +394,11 @@ endif
 
 OBJS-$(TARGET_ARCH_BFIN)               += bfin/dsputil_bfin.o \
 
+ASM_OBJS-$(TARGET_ARCH_BFIN)           += bfin/pixels_bfin.o \
+                                          bfin/idct_bfin.o   \
+                                          bfin/fdct_bfin.o   \
+                                          bfin/xidct.o       \
+
 EXTRALIBS := -L$(BUILD_ROOT)/libavutil -lavutil$(BUILDSUF) $(EXTRALIBS)
 
 NAME=avcodec

libavcodec/bfin/config_bfin.h

+/*
+ * config_bfin.h
+ *
+ * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
+ *
+ * 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
+ */
+/*
+   low level assembler interface wrapper
+
+DEFUN(put_pixels_clamped,mL1,
+        (DCTELEM *block, uint8_t *dest, int line_size)):
+
+      body
+
+      rts;
+*/
+#ifndef DEFUN
+
+#ifndef mL1
+#define mL1 .l1.text
+#endif
+#define mL3 .text
+
+#define DEFUN(fname,where,interface) \
+        .section where;              \
+        .global _ff_bfin_ ## fname ; \
+        .align 8;                    \
+        _ff_bfin_ ## fname
+
+#endif
+