frame copying functions

CVS patchset: 6008
CVS date: 2004/01/07 22:20:59

3 files changed, 97 insertions, 2 deletions

diff --git a/src/xine-utils/Makefile.am b/src/xine-utils/Makefile.am
index cca80ad78..412817b6b 100644
--- a/src/xine-utils/Makefile.am
+++ b/src/xine-utils/Makefile.am
@@ -14,6 +14,7 @@ AM_CFLAGS = $(THREAD_CFLAGS) $(X_CFLAGS)
 libxineutils_la_SOURCES = $(pppc_files) \
 	cpu_accel.c \
 	color.c \
+	copy.c \
 	list.c \
 	memcpy.c \
 	monitor.c \
diff --git a/src/xine-utils/copy.c b/src/xine-utils/copy.c
new file mode 100644
index 000000000..bcf4f350d
--- /dev/null
+++ b/src/xine-utils/copy.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2004 the xine project
+ *
+ * This file is part of xine, a free video player.
+ *
+ * xine 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.
+ *
+ * xine 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: 
+ *
+ */
+ 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "xineutils.h"
+
+void yv12_to_yv12
+  (unsigned char *y_src, int y_src_pitch, unsigned char *y_dst, int y_dst_pitch,
+   unsigned char *u_src, int u_src_pitch, unsigned char *u_dst, int u_dst_pitch,
+   unsigned char *v_src, int v_src_pitch, unsigned char *v_dst, int v_dst_pitch,
+   int width, int height) {
+   
+  int y, half_width = width / 2;
+  
+  /* Y Plane */
+  if(y_src_pitch == y_dst_pitch)
+    xine_fast_memcpy(y_dst, y_src, y_src_pitch*height);
+  else {
+    for(y = 0; y < height; y++) {
+      xine_fast_memcpy(y_dst, y_src, width);
+      y_src += y_src_pitch;
+      y_dst += y_dst_pitch;
+    }
+  }
+  
+  /* U/V Planes */
+  if((u_src_pitch == u_dst_pitch) && (v_src_pitch == v_dst_pitch)) {
+    xine_fast_memcpy(u_dst, u_src, u_src_pitch*height/2);
+    xine_fast_memcpy(v_dst, v_src, v_src_pitch*height/2);
+  } else {
+    for(y = 0; y < (height / 2); y++) {
+      xine_fast_memcpy(u_dst, u_src, half_width);
+      xine_fast_memcpy(v_dst, v_src, half_width);
+    
+      u_src += u_src_pitch;
+      v_src += v_src_pitch;
+    
+      u_dst += u_dst_pitch;
+      v_dst += v_dst_pitch;  
+    }
+  }
+}
+
+void yuy2_to_yuy2
+  (unsigned char *src, int src_pitch,
+   unsigned char *dst, int dst_pitch,
+   int width, int height) {
+   
+  int y, double_width = width * 2;
+  
+  if(src_pitch == dst_pitch)
+    xine_fast_memcpy(dst, src, src_pitch*height);
+  else {
+    for(y = 0; y < height; y++) {
+      xine_fast_memcpy(dst, src, double_width);
+      src += src_pitch;
+      dst += dst_pitch;
+    }
+  }
+}
diff --git a/src/xine-utils/xineutils.h b/src/xine-utils/xineutils.h
index 22bfb9e8f..b5d51309b 100644
--- a/src/xine-utils/xineutils.h
+++ b/src/xine-utils/xineutils.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2000-2003 the xine project
+ * Copyright (C) 2000-2004 the xine project
  * 
  * This file is part of xine, a free video player.
  * 
@@ -17,7 +17,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
  *
- * $Id: xineutils.h,v 1.78 2003/12/29 16:24:33 mroi Exp $
+ * $Id: xineutils.h,v 1.79 2004/01/07 22:20:59 jstembridge Exp $
  *
  */
 #ifndef XINEUTILS_H
@@ -819,6 +819,17 @@ extern int v_r_table[256];
 extern int v_g_table[256];
 extern int v_b_table[256];
 
+/* frame copying functions */
+extern void yv12_to_yv12
+  (unsigned char *y_src, int y_src_pitch, unsigned char *y_dst, int y_dst_pitch,
+   unsigned char *u_src, int u_src_pitch, unsigned char *u_dst, int u_dst_pitch,
+   unsigned char *v_src, int v_src_pitch, unsigned char *v_dst, int v_dst_pitch,
+   int width, int height);
+extern void yuy2_to_yuy2
+  (unsigned char *src, int src_pitch,
+   unsigned char *dst, int dst_pitch,
+   int width, int height);
+ 
 /* print a hexdump of the given data */
 void xine_hexdump (const char *buf, int length);