From 410421d10f9aba95de18ad18e85c950605079c54 Mon Sep 17 00:00:00 2001
From: "Ronald S. Bultje" <rbultje@ronald.bitfreak.net>
Date: Thu, 15 Jan 2004 10:45:55 +0000
Subject: gst/colorspace/: Fix compiling... Didn't test if it actually works.

Original commit message from CVS:
2004-01-15  Ronald Bultje  <rbultje@ronald.bitfreak.net>

* gst/colorspace/gstcolorspace.c:
* gst/colorspace/yuv2yuv.c: (gst_colorspace_yuy2_to_i420),
(gst_colorspace_i420_to_yv12):
Fix compiling... Didn't test if it actually works.
---
 gst/colorspace/yuv2yuv.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 gst/colorspace/yuv2yuv.c

(limited to 'gst/colorspace/yuv2yuv.c')

diff --git a/gst/colorspace/yuv2yuv.c b/gst/colorspace/yuv2yuv.c
new file mode 100644
index 00000000..4a7560d4
--- /dev/null
+++ b/gst/colorspace/yuv2yuv.c
@@ -0,0 +1,79 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "config.h"
+
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <gst/gst.h>
+
+/*#undef HAVE_LIBMMX */
+
+#ifdef HAVE_LIBMMX
+#include "mmx.h"
+#endif
+
+void gst_colorspace_yuy2_to_i420(unsigned char *src, unsigned char *dest, guint width, guint height) 
+{
+  int size, i, j;
+  guchar *desty, *destr, *destb;
+
+  size = width * height;
+
+  desty = dest;
+  destr = desty + size;
+  destb = destr + (size>>2);
+
+  for (i=0; i<height; i++) {
+    for (j=0; j<(width>>1); j++) {
+      *desty++ = *src;
+      *desty++ = *(src+2);
+      if ((i&1) == 0) {
+        *destr++ = *(src+1);
+        *destb++ = *(src+3);
+      }
+      src += 4;
+    }
+  }
+}
+
+void gst_colorspace_i420_to_yv12(unsigned char *src, unsigned char *dest, guint width, guint height) 
+{
+  int size, i;
+  guint8 *destcr, *destcb;
+  
+  size = width * height;
+
+  memcpy (dest, src, size);
+
+  src += size;
+  destcr = dest + size;
+  size >>=2;
+  destcb = destcr + size;
+
+  i=size;
+  while (i--) 
+    *destcb++ = *src++;
+  i=size;
+  while (i--) 
+    *destcr++ = *src++;
+}
+
-- 
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