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/**
* Copyright (C) 2002 Billy Biggs <vektor@dumbterm.net>.
* Copyright (C) 2008 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, 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 "_stdint.h"
#include "gstdeinterlace.h"
#include <string.h>
#define GST_TYPE_DEINTERLACE_METHOD_LINEAR (gst_deinterlace_method_linear_get_type ())
#define GST_IS_DEINTERLACE_METHOD_LINEAR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_LINEAR))
#define GST_IS_DEINTERLACE_METHOD_LINEAR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEINTERLACE_METHOD_LINEAR))
#define GST_DEINTERLACE_METHOD_LINEAR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEINTERLACE_METHOD_LINEAR, GstDeinterlaceMethodLinearClass))
#define GST_DEINTERLACE_METHOD_LINEAR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEINTERLACE_METHOD_LINEAR, GstDeinterlaceMethodLinear))
#define GST_DEINTERLACE_METHOD_LINEAR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEINTERLACE_METHOD_LINEAR, GstDeinterlaceMethodLinearClass))
#define GST_DEINTERLACE_METHOD_LINEAR_CAST(obj) ((GstDeinterlaceMethodLinear*)(obj))
GType gst_deinterlace_method_linear_get_type (void);
typedef GstDeinterlaceSimpleMethod GstDeinterlaceMethodLinear;
typedef GstDeinterlaceSimpleMethodClass GstDeinterlaceMethodLinearClass;
static void
deinterlace_scanline_linear_c (GstDeinterlaceMethod * self,
GstDeinterlace * parent, guint8 * out,
GstDeinterlaceScanlineData * scanlines, gint width)
{
gint i;
width *= 2;
for (i = 0; i < width; i++)
out[i] = (scanlines->t0[i] + scanlines->b0[i]) / 2;
}
#ifdef BUILD_X86_ASM
#include "mmx.h"
static void
deinterlace_scanline_linear_mmx (GstDeinterlaceMethod * self,
GstDeinterlace * parent, guint8 * out,
GstDeinterlaceScanlineData * scanlines, gint width)
{
const mmx_t shiftmask = { 0xfefffefffefffeffULL }; /* To avoid shifting chroma to luma. */
int i;
guint8 *bot = scanlines->b0, *top = scanlines->t0;
for (i = width / 16; i; --i) {
movq_m2r (*bot, mm0);
movq_m2r (*top, mm1);
movq_m2r (*(bot + 8), mm2);
movq_m2r (*(top + 8), mm3);
movq_m2r (*(bot + 16), mm4);
movq_m2r (*(top + 16), mm5);
movq_m2r (*(bot + 24), mm6);
movq_m2r (*(top + 24), mm7);
pand_m2r (shiftmask, mm0);
pand_m2r (shiftmask, mm1);
pand_m2r (shiftmask, mm2);
pand_m2r (shiftmask, mm3);
pand_m2r (shiftmask, mm4);
pand_m2r (shiftmask, mm5);
pand_m2r (shiftmask, mm6);
pand_m2r (shiftmask, mm7);
psrlw_i2r (1, mm0);
psrlw_i2r (1, mm1);
psrlw_i2r (1, mm2);
psrlw_i2r (1, mm3);
psrlw_i2r (1, mm4);
psrlw_i2r (1, mm5);
psrlw_i2r (1, mm6);
psrlw_i2r (1, mm7);
paddb_r2r (mm1, mm0);
paddb_r2r (mm3, mm2);
paddb_r2r (mm5, mm4);
paddb_r2r (mm7, mm6);
movq_r2m (mm0, *out);
movq_r2m (mm2, *(out + 8));
movq_r2m (mm4, *(out + 16));
movq_r2m (mm6, *(out + 24));
out += 32;
top += 32;
bot += 32;
}
width = (width & 0xf);
for (i = width / 4; i; --i) {
movq_m2r (*bot, mm0);
movq_m2r (*top, mm1);
pand_m2r (shiftmask, mm0);
pand_m2r (shiftmask, mm1);
psrlw_i2r (1, mm0);
psrlw_i2r (1, mm1);
paddb_r2r (mm1, mm0);
movq_r2m (mm0, *out);
out += 8;
top += 8;
bot += 8;
}
width = width & 0x7;
/* Handle last few pixels. */
for (i = width * 2; i; --i) {
*out++ = ((*top++) + (*bot++)) >> 1;
}
emms ();
}
#include "sse.h"
static void
deinterlace_scanline_linear_mmxext (GstDeinterlaceMethod * self,
GstDeinterlace * parent, guint8 * out,
GstDeinterlaceScanlineData * scanlines, gint width)
{
gint i;
guint8 *bot = scanlines->b0, *top = scanlines->t0;
for (i = width / 16; i; --i) {
movq_m2r (*bot, mm0);
movq_m2r (*top, mm1);
movq_m2r (*(bot + 8), mm2);
movq_m2r (*(top + 8), mm3);
movq_m2r (*(bot + 16), mm4);
movq_m2r (*(top + 16), mm5);
movq_m2r (*(bot + 24), mm6);
movq_m2r (*(top + 24), mm7);
pavgb_r2r (mm1, mm0);
pavgb_r2r (mm3, mm2);
pavgb_r2r (mm5, mm4);
pavgb_r2r (mm7, mm6);
movntq_r2m (mm0, *out);
movntq_r2m (mm2, *(out + 8));
movntq_r2m (mm4, *(out + 16));
movntq_r2m (mm6, *(out + 24));
out += 32;
top += 32;
bot += 32;
}
width = (width & 0xf);
for (i = width / 4; i; --i) {
movq_m2r (*bot, mm0);
movq_m2r (*top, mm1);
pavgb_r2r (mm1, mm0);
movntq_r2m (mm0, *out);
out += 8;
top += 8;
bot += 8;
}
width = width & 0x7;
/* Handle last few pixels. */
for (i = width * 2; i; --i) {
*out++ = ((*top++) + (*bot++)) >> 1;
}
emms ();
}
#endif
G_DEFINE_TYPE (GstDeinterlaceMethodLinear, gst_deinterlace_method_linear,
GST_TYPE_DEINTERLACE_SIMPLE_METHOD);
static void
gst_deinterlace_method_linear_class_init (GstDeinterlaceMethodLinearClass *
klass)
{
GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;
GstDeinterlaceSimpleMethodClass *dism_class =
(GstDeinterlaceSimpleMethodClass *) klass;
#ifdef BUILD_X86_ASM
guint cpu_flags = oil_cpu_get_flags ();
#endif
dim_class->fields_required = 1;
dim_class->name = "Television: Full resolution";
dim_class->nick = "linear";
dim_class->latency = 0;
dism_class->interpolate_scanline = deinterlace_scanline_linear_c;
#ifdef BUILD_X86_ASM
if (cpu_flags & OIL_IMPL_FLAG_MMXEXT) {
dism_class->interpolate_scanline = deinterlace_scanline_linear_mmxext;
} else if (cpu_flags & OIL_IMPL_FLAG_MMXEXT) {
dism_class->interpolate_scanline = deinterlace_scanline_linear_mmx;
}
#endif
}
static void
gst_deinterlace_method_linear_init (GstDeinterlaceMethodLinear * self)
{
}
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