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Diffstat (limited to 'gst/deinterlace/tvtime/linear.c')
| -rw-r--r-- | gst/deinterlace/tvtime/linear.c | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/gst/deinterlace/tvtime/linear.c b/gst/deinterlace/tvtime/linear.c new file mode 100644 index 00000000..8a13d8a1 --- /dev/null +++ b/gst/deinterlace/tvtime/linear.c @@ -0,0 +1,214 @@ +/** + * 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. + */ + +#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) +{ +} |