/*

 * Weave frames, bottom-field-first.

 * Copyright (C) 2003 Billy Biggs <vektor@dumbterm.net>.

 * Copyright (C) 2008,2010 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 Lesser 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

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the

 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 */

/*

 * Relicensed for GStreamer from GPL to LGPL with permit from Billy Biggs.

 * See: http://bugzilla.gnome.org/show_bug.cgi?id=163578

 */

#ifdef HAVE_CONFIG_H

# include "config.h"

#endif

#include "gstdeinterlacemethod.h"

#include <string.h>

#define GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF	(gst_deinterlace_method_weave_bff_get_type ())

#define GST_IS_DEINTERLACE_METHOD_WEAVE_BFF(obj)		(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF))

#define GST_IS_DEINTERLACE_METHOD_WEAVE_BFF_CLASS(klass)	(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF))

#define GST_DEINTERLACE_METHOD_WEAVE_BFF_GET_CLASS(obj)	(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF, GstDeinterlaceMethodWeaveBFFClass))

#define GST_DEINTERLACE_METHOD_WEAVE_BFF(obj)		(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF, GstDeinterlaceMethodWeaveBFF))

#define GST_DEINTERLACE_METHOD_WEAVE_BFF_CLASS(klass)	(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEINTERLACE_METHOD_WEAVE_BFF, GstDeinterlaceMethodWeaveBFFClass))

#define GST_DEINTERLACE_METHOD_WEAVE_BFF_CAST(obj)	((GstDeinterlaceMethodWeaveBFF*)(obj))

GType gst_deinterlace_method_weave_bff_get_type (void);

typedef GstDeinterlaceSimpleMethod GstDeinterlaceMethodWeaveBFF;

typedef GstDeinterlaceSimpleMethodClass GstDeinterlaceMethodWeaveBFFClass;

static void

deinterlace_scanline_weave_packed (GstDeinterlaceSimpleMethod * self,

    guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)

{

  if (scanlines->m1 == NULL) {

    memcpy (out, scanlines->b0, size);

  } else {

    memcpy (out, scanlines->m1, size);

  }

}

static void

deinterlace_scanline_weave_planar_y (GstDeinterlaceSimpleMethod * self,

    guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)

{

  if (scanlines->m1 == NULL) {

    memcpy (out, scanlines->b0, size);

  } else {

    memcpy (out, scanlines->m1, size);

  }

}

static void

deinterlace_scanline_weave_planar_u (GstDeinterlaceSimpleMethod * self,

    guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)

{

  if (scanlines->m1 == NULL) {

    memcpy (out, scanlines->b0, size);

  } else {

    memcpy (out, scanlines->m1, size);

  }

}

static void

deinterlace_scanline_weave_planar_v (GstDeinterlaceSimpleMethod * self,

    guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)

{

  if (scanlines->m1 == NULL) {

    memcpy (out, scanlines->b0, size);

  } else {

    memcpy (out, scanlines->m1, size);

  }

}

static void

copy_scanline_packed (GstDeinterlaceSimpleMethod * self, guint8 * out,

    const GstDeinterlaceScanlineData * scanlines, guint size)

{

  memcpy (out, scanlines->m0, size);

}

static void

copy_scanline_planar_y (GstDeinterlaceSimpleMethod * self, guint8 * out,

    const GstDeinterlaceScanlineData * scanlines, guint size)

{

  memcpy (out, scanlines->m0, size);

}

static void

copy_scanline_planar_u (GstDeinterlaceSimpleMethod * self, guint8 * out,

    const GstDeinterlaceScanlineData * scanlines, guint size)

{

  memcpy (out, scanlines->m0, size);

}

static void

copy_scanline_planar_v (GstDeinterlaceSimpleMethod * self, guint8 * out,

    const GstDeinterlaceScanlineData * scanlines, guint size)

{

  memcpy (out, scanlines->m0, size);

}

G_DEFINE_TYPE (GstDeinterlaceMethodWeaveBFF, gst_deinterlace_method_weave_bff,

    GST_TYPE_DEINTERLACE_SIMPLE_METHOD);

static void

gst_deinterlace_method_weave_bff_class_init (GstDeinterlaceMethodWeaveBFFClass *

    klass)

{

  GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;

  GstDeinterlaceSimpleMethodClass *dism_class =

      (GstDeinterlaceSimpleMethodClass *) klass;

  dim_class->fields_required = 2;

  dim_class->name = "Progressive: Bottom Field First";

  dim_class->nick = "weavebff";

  dim_class->latency = 1;

  dism_class->interpolate_scanline_ayuv = deinterlace_scanline_weave_packed;

  dism_class->interpolate_scanline_yuy2 = deinterlace_scanline_weave_packed;

  dism_class->interpolate_scanline_yvyu = deinterlace_scanline_weave_packed;

  dism_class->interpolate_scanline_uyvy = deinterlace_scanline_weave_packed;

  dism_class->interpolate_scanline_nv12 = deinterlace_scanline_weave_packed;

  dism_class->interpolate_scanline_nv21 = deinterlace_scanline_weave_packed;

  dism_class->interpolate_scanline_argb = deinterlace_scanline_weave_packed;

  dism_class->interpolate_scanline_abgr = deinterlace_scanline_weave_packed;

  dism_class->interpolate_scanline_rgba = deinterlace_scanline_weave_packed;

  dism_class->interpolate_scanline_bgra = deinterlace_scanline_weave_packed;

  dism_class->interpolate_scanline_rgb = deinterlace_scanline_weave_packed;

  dism_class->interpolate_scanline_bgr = deinterlace_scanline_weave_packed;

  dism_class->interpolate_scanline_planar_y =

      deinterlace_scanline_weave_planar_y;

  dism_class->interpolate_scanline_planar_u =

      deinterlace_scanline_weave_planar_u;

  dism_class->interpolate_scanline_planar_v =

      deinterlace_scanline_weave_planar_v;

  dism_class->copy_scanline_ayuv = copy_scanline_packed;

  dism_class->copy_scanline_yuy2 = copy_scanline_packed;

  dism_class->copy_scanline_yvyu = copy_scanline_packed;

  dism_class->copy_scanline_uyvy = copy_scanline_packed;

  dism_class->copy_scanline_nv12 = copy_scanline_packed;

  dism_class->copy_scanline_nv21 = copy_scanline_packed;

  dism_class->copy_scanline_argb = copy_scanline_packed;

  dism_class->copy_scanline_abgr = copy_scanline_packed;

  dism_class->copy_scanline_rgba = copy_scanline_packed;

  dism_class->copy_scanline_bgra = copy_scanline_packed;

  dism_class->copy_scanline_rgb = copy_scanline_packed;

  dism_class->copy_scanline_bgr = copy_scanline_packed;

  dism_class->copy_scanline_planar_y = copy_scanline_planar_y;

  dism_class->copy_scanline_planar_u = copy_scanline_planar_u;

  dism_class->copy_scanline_planar_v = copy_scanline_planar_v;

}

static void

gst_deinterlace_method_weave_bff_init (GstDeinterlaceMethodWeaveBFF * self)

{

}