/*
 * Linear blend deinterlacing plugin.  The idea for this algorithm came
 * from the linear blend deinterlacer which originated in the mplayer
 * sources.
 *
 * Copyright (C) 2002 Billy Biggs <vektor@dumbterm.net>.
 * Copyright (C) 2008,2010 Sebastian Dröge <slomo@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>
#ifdef HAVE_ORC
#include <orc/orc.h>
#endif
#include "tvtime.h"

#define GST_TYPE_DEINTERLACE_METHOD_LINEAR_BLEND	(gst_deinterlace_method_linear_blend_get_type ())
#define GST_IS_DEINTERLACE_METHOD_LINEAR_BLEND(obj)		(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_LINEAR_BLEND))
#define GST_IS_DEINTERLACE_METHOD_LINEAR_BLEND_CLASS(klass)	(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEINTERLACE_METHOD_LINEAR_BLEND))
#define GST_DEINTERLACE_METHOD_LINEAR_BLEND_GET_CLASS(obj)	(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEINTERLACE_METHOD_LINEAR_BLEND, GstDeinterlaceMethodLinearBlendClass))
#define GST_DEINTERLACE_METHOD_LINEAR_BLEND(obj)		(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEINTERLACE_METHOD_LINEAR_BLEND, GstDeinterlaceMethodLinearBlend))
#define GST_DEINTERLACE_METHOD_LINEAR_BLEND_CLASS(klass)	(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEINTERLACE_METHOD_LINEAR_BLEND, GstDeinterlaceMethodLinearBlendClass))
#define GST_DEINTERLACE_METHOD_LINEAR_BLEND_CAST(obj)	((GstDeinterlaceMethodLinearBlend*)(obj))

GType gst_deinterlace_method_linear_blend_get_type (void);

typedef GstDeinterlaceSimpleMethod GstDeinterlaceMethodLinearBlend;
typedef GstDeinterlaceSimpleMethodClass GstDeinterlaceMethodLinearBlendClass;

static inline void
deinterlace_scanline_linear_blend_c (GstDeinterlaceSimpleMethod * self,
    guint8 * out, const guint8 * t0, const guint8 * b0, const guint8 * m1,
    gint size)
{
  if (m1 == NULL) {
    deinterlace_line_linear (out, t0, b0, size);
  } else {
    deinterlace_line_linear_blend (out, t0, b0, m1, size);
  }
}

static void
deinterlace_scanline_linear_blend_packed_c (GstDeinterlaceSimpleMethod * self,
    guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
{
  deinterlace_scanline_linear_blend_c (self, out, scanlines->t0, scanlines->b0,
      scanlines->m1, size);
}

static void
deinterlace_scanline_linear_blend_planar_y_c (GstDeinterlaceSimpleMethod * self,
    guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
{
  deinterlace_scanline_linear_blend_c (self, out, scanlines->t0, scanlines->b0,
      scanlines->m1, size);
}

static void
deinterlace_scanline_linear_blend_planar_u_c (GstDeinterlaceSimpleMethod * self,
    guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
{
  deinterlace_scanline_linear_blend_c (self, out, scanlines->t0, scanlines->b0,
      scanlines->m1, size);
}

static void
deinterlace_scanline_linear_blend_planar_v_c (GstDeinterlaceSimpleMethod * self,
    guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
{
  deinterlace_scanline_linear_blend_c (self, out, scanlines->t0, scanlines->b0,
      scanlines->m1, size);
}

static inline void
deinterlace_scanline_linear_blend2_c (GstDeinterlaceSimpleMethod * self,
    guint8 * out, const guint8 * m0, const guint8 * t1, const guint8 * b1,
    gint size)
{
  if (t1 == NULL) {
    memcpy (out, m0, size);
  } else {
    deinterlace_line_linear_blend (out, t1, b1, m0, size);
  }
}

static void
deinterlace_scanline_linear_blend2_packed_c (GstDeinterlaceSimpleMethod * self,
    guint8 * out, const GstDeinterlaceScanlineData * scanlines, guint size)
{
  deinterlace_scanline_linear_blend2_c (self, out, scanlines->m0, scanlines->t1,
      scanlines->b1, size);
}

static void
deinterlace_scanline_linear_blend2_planar_y_c (GstDeinterlaceSimpleMethod *
    self, guint8 * out, const GstDeinterlaceScanlineData * scanlines,
    guint size)
{
  deinterlace_scanline_linear_blend2_c (self, out, scanlines->m0, scanlines->t1,
      scanlines->b1, size);
}

static void
deinterlace_scanline_linear_blend2_planar_u_c (GstDeinterlaceSimpleMethod *
    self, guint8 * out, const GstDeinterlaceScanlineData * scanlines,
    guint size)
{
  deinterlace_scanline_linear_blend2_c (self, out, scanlines->m0, scanlines->t1,
      scanlines->b1, size);
}

static void
deinterlace_scanline_linear_blend2_planar_v_c (GstDeinterlaceSimpleMethod *
    self, guint8 * out, const GstDeinterlaceScanlineData * scanlines,
    guint size)
{
  deinterlace_scanline_linear_blend2_c (self, out, scanlines->m0, scanlines->t1,
      scanlines->b1, size);
}

G_DEFINE_TYPE (GstDeinterlaceMethodLinearBlend,
    gst_deinterlace_method_linear_blend, GST_TYPE_DEINTERLACE_SIMPLE_METHOD);

static void
    gst_deinterlace_method_linear_blend_class_init
    (GstDeinterlaceMethodLinearBlendClass * klass)
{
  GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;
  GstDeinterlaceSimpleMethodClass *dism_class =
      (GstDeinterlaceSimpleMethodClass *) klass;

  dim_class->fields_required = 2;
  dim_class->name = "Blur: Temporal";
  dim_class->nick = "linearblend";
  dim_class->latency = 1;

  dism_class->interpolate_scanline_yuy2 =
      deinterlace_scanline_linear_blend_packed_c;
  dism_class->interpolate_scanline_yvyu =
      deinterlace_scanline_linear_blend_packed_c;
  dism_class->interpolate_scanline_uyvy =
      deinterlace_scanline_linear_blend_packed_c;
  dism_class->interpolate_scanline_ayuv =
      deinterlace_scanline_linear_blend_packed_c;
  dism_class->interpolate_scanline_argb =
      deinterlace_scanline_linear_blend_packed_c;
  dism_class->interpolate_scanline_rgba =
      deinterlace_scanline_linear_blend_packed_c;
  dism_class->interpolate_scanline_abgr =
      deinterlace_scanline_linear_blend_packed_c;
  dism_class->interpolate_scanline_bgra =
      deinterlace_scanline_linear_blend_packed_c;
  dism_class->interpolate_scanline_rgb =
      deinterlace_scanline_linear_blend_packed_c;
  dism_class->interpolate_scanline_bgr =
      deinterlace_scanline_linear_blend_packed_c;
  dism_class->interpolate_scanline_nv12 =
      deinterlace_scanline_linear_blend_packed_c;
  dism_class->interpolate_scanline_nv21 =
      deinterlace_scanline_linear_blend_packed_c;

  dism_class->interpolate_scanline_planar_y =
      deinterlace_scanline_linear_blend_planar_y_c;
  dism_class->interpolate_scanline_planar_u =
      deinterlace_scanline_linear_blend_planar_u_c;
  dism_class->interpolate_scanline_planar_v =
      deinterlace_scanline_linear_blend_planar_v_c;

  dism_class->copy_scanline_yuy2 = deinterlace_scanline_linear_blend2_packed_c;
  dism_class->copy_scanline_yvyu = deinterlace_scanline_linear_blend2_packed_c;
  dism_class->copy_scanline_uyvy = deinterlace_scanline_linear_blend2_packed_c;
  dism_class->copy_scanline_ayuv = deinterlace_scanline_linear_blend2_packed_c;
  dism_class->copy_scanline_argb = deinterlace_scanline_linear_blend2_packed_c;
  dism_class->copy_scanline_abgr = deinterlace_scanline_linear_blend2_packed_c;
  dism_class->copy_scanline_rgba = deinterlace_scanline_linear_blend2_packed_c;
  dism_class->copy_scanline_bgra = deinterlace_scanline_linear_blend2_packed_c;
  dism_class->copy_scanline_rgb = deinterlace_scanline_linear_blend2_packed_c;
  dism_class->copy_scanline_bgr = deinterlace_scanline_linear_blend2_packed_c;

  dism_class->copy_scanline_planar_y =
      deinterlace_scanline_linear_blend2_planar_y_c;
  dism_class->copy_scanline_planar_u =
      deinterlace_scanline_linear_blend2_planar_u_c;
  dism_class->copy_scanline_planar_v =
      deinterlace_scanline_linear_blend2_planar_v_c;

}

static void
gst_deinterlace_method_linear_blend_init (GstDeinterlaceMethodLinearBlend *
    self)
{
}