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Diffstat (limited to 'gst/deinterlace/tvtime/linearblend.c')
| -rw-r--r-- | gst/deinterlace/tvtime/linearblend.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/gst/deinterlace/tvtime/linearblend.c b/gst/deinterlace/tvtime/linearblend.c new file mode 100644 index 00000000..5ecffd6e --- /dev/null +++ b/gst/deinterlace/tvtime/linearblend.c @@ -0,0 +1,231 @@ +/** + * 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 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_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 (GstDeinterlaceMethod * self, + GstDeinterlace * parent, guint8 * out, + GstDeinterlaceScanlineData * scanlines, gint width) +{ + guint8 *t0 = scanlines->t0; + guint8 *b0 = scanlines->b0; + guint8 *m1 = scanlines->m1; + + width *= 2; + + while (width--) { + *out++ = (*t0++ + *b0++ + (*m1++ << 1)) >> 2; + } +} + +static inline void +deinterlace_scanline_linear_blend2_c (GstDeinterlaceMethod * self, + GstDeinterlace * parent, guint8 * out, + GstDeinterlaceScanlineData * scanlines, gint width) +{ + guint8 *m0 = scanlines->m0; + guint8 *t1 = scanlines->t1; + guint8 *b1 = scanlines->b1; + + width *= 2; + while (width--) { + *out++ = (*t1++ + *b1++ + (*m0++ << 1)) >> 2; + } +} + +#ifdef BUILD_X86_ASM +#include "mmx.h" +static inline void +deinterlace_scanline_linear_blend_mmx (GstDeinterlaceMethod * self, + GstDeinterlace * parent, guint8 * out, + GstDeinterlaceScanlineData * scanlines, gint width) +{ + guint8 *t0 = scanlines->t0; + guint8 *b0 = scanlines->b0; + guint8 *m1 = scanlines->m1; + gint i; + + // Get width in bytes. + width *= 2; + i = width / 8; + width -= i * 8; + + pxor_r2r (mm7, mm7); + while (i--) { + movd_m2r (*t0, mm0); + movd_m2r (*b0, mm1); + movd_m2r (*m1, mm2); + + movd_m2r (*(t0 + 4), mm3); + movd_m2r (*(b0 + 4), mm4); + movd_m2r (*(m1 + 4), mm5); + + punpcklbw_r2r (mm7, mm0); + punpcklbw_r2r (mm7, mm1); + punpcklbw_r2r (mm7, mm2); + + punpcklbw_r2r (mm7, mm3); + punpcklbw_r2r (mm7, mm4); + punpcklbw_r2r (mm7, mm5); + + psllw_i2r (1, mm2); + psllw_i2r (1, mm5); + paddw_r2r (mm0, mm2); + paddw_r2r (mm3, mm5); + paddw_r2r (mm1, mm2); + paddw_r2r (mm4, mm5); + psrlw_i2r (2, mm2); + psrlw_i2r (2, mm5); + packuswb_r2r (mm2, mm2); + packuswb_r2r (mm5, mm5); + + movd_r2m (mm2, *out); + movd_r2m (mm5, *(out + 4)); + out += 8; + t0 += 8; + b0 += 8; + m1 += 8; + } + while (width--) { + *out++ = (*t0++ + *b0++ + (*m1++ << 1)) >> 2; + } + emms (); +} + +static inline void +deinterlace_scanline_linear_blend2_mmx (GstDeinterlaceMethod * self, + GstDeinterlace * parent, guint8 * out, + GstDeinterlaceScanlineData * scanlines, gint width) +{ + guint8 *m0 = scanlines->m0; + guint8 *t1 = scanlines->t1; + guint8 *b1 = scanlines->b1; + gint i; + + // Get width in bytes. + width *= 2; + i = width / 8; + width -= i * 8; + + pxor_r2r (mm7, mm7); + while (i--) { + movd_m2r (*t1, mm0); + movd_m2r (*b1, mm1); + movd_m2r (*m0, mm2); + + movd_m2r (*(t1 + 4), mm3); + movd_m2r (*(b1 + 4), mm4); + movd_m2r (*(m0 + 4), mm5); + + punpcklbw_r2r (mm7, mm0); + punpcklbw_r2r (mm7, mm1); + punpcklbw_r2r (mm7, mm2); + + punpcklbw_r2r (mm7, mm3); + punpcklbw_r2r (mm7, mm4); + punpcklbw_r2r (mm7, mm5); + + psllw_i2r (1, mm2); + psllw_i2r (1, mm5); + paddw_r2r (mm0, mm2); + paddw_r2r (mm3, mm5); + paddw_r2r (mm1, mm2); + paddw_r2r (mm4, mm5); + psrlw_i2r (2, mm2); + psrlw_i2r (2, mm5); + packuswb_r2r (mm2, mm2); + packuswb_r2r (mm5, mm5); + + movd_r2m (mm2, *out); + movd_r2m (mm5, *(out + 4)); + out += 8; + t1 += 8; + b1 += 8; + m0 += 8; + } + while (width--) { + *out++ = (*t1++ + *b1++ + (*m0++ << 1)) >> 2; + } + emms (); +} + +#endif + +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; +#ifdef BUILD_X86_ASM + guint cpu_flags = oil_cpu_get_flags (); +#endif + + dim_class->fields_required = 2; + dim_class->name = "Blur: Temporal"; + dim_class->nick = "linearblend"; + dim_class->latency = 0; + + dism_class->interpolate_scanline = deinterlace_scanline_linear_blend_c; + dism_class->copy_scanline = deinterlace_scanline_linear_blend2_c; + +#ifdef BUILD_X86_ASM + if (cpu_flags & OIL_IMPL_FLAG_MMX) { + dism_class->interpolate_scanline = deinterlace_scanline_linear_blend_mmx; + dism_class->copy_scanline = deinterlace_scanline_linear_blend2_mmx; + } +#endif +} + +static void +gst_deinterlace_method_linear_blend_init (GstDeinterlaceMethodLinearBlend * + self) +{ +} |