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video-scaler: add more ORC functions

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Add the old ORC functions for nearest and linear. Label them as Low
quality because they are not as accurate but ORC lacks opcodes to
express this for now.
This commit is contained in:
Wim Taymans 2014-10-30 11:46:14 +01:00
parent ca2bd1cc6b
commit 49d909dabf
2 changed files with 51 additions and 6 deletions
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16
gst-libs/gst/video/video-orc.orc
View file

@ -1294,6 +1294,14 @@ x4 addb ayuv, ayuv2, c128
#loadidxl t, src, idx
#storel dest, t
.function video_orc_resample_h_near_8888_lq
.dest 4 d1 guint32
.source 4 s1 guint32
.param 4 p1
.param 4 p2
ldresnearl d1, s1, p1, p2
#.function video_orc_resample_h_2tap_8888_16
#.source 4 src1 guint32
#.source 4 src2 guint32
@ -1339,6 +1347,14 @@ x4 addb ayuv, ayuv2, c128
#x4 convhwb t2, q2
#x4 addb dest, t2, t1
.function video_orc_resample_h_2tap_8888_lq
.dest 4 d1 guint32
.source 4 s1 guint32
.param 4 p1
.param 4 p2
ldreslinl d1, s1, p1, p2
.function video_orc_resample_v_2tap_8_lq
.source 1 src1 guint32
.source 1 src2 guint32

41
gst-libs/gst/video/video-scaler.c
View file

@ -48,6 +48,8 @@ struct _GstVideoScaler
/* cached integer coefficients */
gint16 *taps_s16;
/* for ORC */
gint inc;
};
static void
@ -139,6 +141,12 @@ gst_video_scaler_new (GstVideoResamplerMethod method, GstVideoScalerFlags flags,
gst_video_resampler_init (&scale->resampler, method, flags, out_size,
n_taps, 0.0, in_size, out_size, options);
}
if (out_size == 1)
scale->inc = 0;
else
scale->inc = ((in_size - 1) << 16) / (out_size - 1) - 1;
return scale;
}
@ -272,19 +280,27 @@ static void
video_scale_h_near_8888 (GstVideoScaler * scale,
gpointer src, gpointer dest, guint dest_offset, guint width)
{
gint i;
guint32 *s, *d;
guint32 *offset;
offset = scale->resampler.offset + dest_offset;
d = (guint32 *) dest + dest_offset;
s = (guint32 *) src;
for (i = 0; i < width; i++)
d[i] = s[offset[i]];
#if 0
/* ORC is slower on this */
video_orc_resample_h_near_8888_lq (d, s, 0, scale->inc, width);
#else
{
gint i;
guint32 *offset;
offset = scale->resampler.offset + dest_offset;
for (i = 0; i < width; i++)
d[i] = s[offset[i]];
}
#endif
}
#if 0
#define BLEND_2TAP(a,b,p) (((((b)-(guint16)(a)) * p + S16_SCALE_ROUND) >> S16_SCALE) + (a))
static void
@ -322,6 +338,19 @@ video_scale_h_2tap_8888 (GstVideoScaler * scale,
d[i * 4 + 3] = CLAMP (sum3, 0, 255);
}
}
#endif
static void
video_scale_h_2tap_8888 (GstVideoScaler * scale,
gpointer src, gpointer dest, guint dest_offset, guint width)
{
guint32 *s, *d;
d = (guint32 *) dest + dest_offset;
s = (guint32 *) src;
video_orc_resample_h_2tap_8888_lq (d, s, 0, scale->inc, width);
}
static void
video_scale_h_ntap_8888 (GstVideoScaler * scale,