videomixer: Refactor processing functions

This allows easier plugging of optimized processing functions
in the future, like for SSE or AltiVec.

1 files changed, 64 insertions, 0 deletions

diff --git a/gst/videomixer/blend.h b/gst/videomixer/blend.h
new file mode 100644
index 000000000..fc61f9968
--- /dev/null
+++ b/gst/videomixer/blend.h
@@ -0,0 +1,64 @@
+/* 
+ * Copyright (C) 2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
+ *
+ * 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.
+ */
+
+#ifndef __BLEND_H__
+#define __BLEND_H__
+
+#include <gst/gst.h>
+
+typedef void (*BlendFunction) (const guint8 * src, gint xpos, gint ypos, gint src_width, gint src_height, gdouble src_alpha, guint8 * dest, gint dest_width, gint dest_height);
+typedef void (*FillCheckerFunction) (guint8 * dest, gint width, gint height);
+typedef void (*FillColorFunction) (guint8 * dest, gint width, gint height, gint c1, gint c2, gint c3);
+
+extern BlendFunction gst_video_mixer_blend_argb;
+extern BlendFunction gst_video_mixer_blend_bgra;
+#define gst_video_mixer_blend_ayuv gst_video_mixer_blend_argb
+extern BlendFunction gst_video_mixer_blend_i420;
+extern BlendFunction gst_video_mixer_blend_rgb;
+#define gst_video_mixer_blend_bgr gst_video_mixer_blend_rgb
+extern BlendFunction gst_video_mixer_blend_rgbx;
+#define gst_video_mixer_blend_bgrx gst_video_mixer_blend_rgbx
+#define gst_video_mixer_blend_xrgb gst_video_mixer_blend_rgbx
+#define gst_video_mixer_blend_xbgr gst_video_mixer_blend_rgbx
+
+extern FillCheckerFunction gst_video_mixer_fill_checker_argb;
+extern FillCheckerFunction gst_video_mixer_fill_checker_bgra;
+extern FillCheckerFunction gst_video_mixer_fill_checker_ayuv;
+extern FillCheckerFunction gst_video_mixer_fill_checker_i420;
+extern FillCheckerFunction gst_video_mixer_fill_checker_rgb;
+#define gst_video_mixer_fill_checker_bgr gst_video_mixer_fill_checker_rgb
+extern FillCheckerFunction gst_video_mixer_fill_checker_rgbx;
+#define gst_video_mixer_fill_checker_bgrx gst_video_mixer_fill_checker_rgbx
+#define gst_video_mixer_fill_checker_xrgb gst_video_mixer_fill_checker_rgbx
+#define gst_video_mixer_fill_checker_xbgr gst_video_mixer_fill_checker_rgbx
+
+extern FillColorFunction gst_video_mixer_fill_color_argb;
+extern FillColorFunction gst_video_mixer_fill_color_bgra;
+extern FillColorFunction gst_video_mixer_fill_color_ayuv;
+extern FillColorFunction gst_video_mixer_fill_color_i420;
+extern FillColorFunction gst_video_mixer_fill_color_rgb;
+extern FillColorFunction gst_video_mixer_fill_color_bgr;
+extern FillColorFunction gst_video_mixer_fill_color_xrgb;
+extern FillColorFunction gst_video_mixer_fill_color_xbgr;
+extern FillColorFunction gst_video_mixer_fill_color_rgbx;
+extern FillColorFunction gst_video_mixer_fill_color_bgrx;
+
+void gst_video_mixer_init_blend (void);
+
+#endif /* __BLEND_H__ */