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video-scaler: add ORC optimized ntap horizontal scalers
This commit is contained in:
Wim Taymans
parent
e0028c77f6
commit
524d30a168
2 changed files with 204 additions and 29 deletions
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@ -1452,4 +1452,97 @@ shrsl t1, t1, 12
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convlw w1, t1
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convsuswb d1, w1
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.function video_orc_resample_h_4tap_8
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.source 1 s1 guint32
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.source 1 s2 guint32
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.source 1 s3 guint32
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.source 1 s4 guint32
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.source 2 t1 gint16
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.source 2 t2 gint16
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.source 2 t3 gint16
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.source 2 t4 gint16
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.dest 1 d1 guint8
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.temp 2 w1
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.temp 2 w2
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.temp 4 l1
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.temp 4 l2
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convubw w1, s1
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mulswl l1, w1, t1
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convubw w2, s2
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mulswl l2, w2, t2
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addl l1, l1, l2
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convubw w2, s3
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mulswl l2, w2, t3
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addl l1, l1, l2
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convubw w2, s4
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mulswl l2, w2, t4
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addl l1, l1, l2
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addl l1, l1, 4095
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shrsl l1, l1, 12
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convlw w1, l1
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convsuswb d1, w1
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.function video_orc_resample_h_multaps_8
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.source 1 s guint32
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.source 2 t gint16
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.dest 4 d gint32
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.temp 2 w1
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convubw w1, s
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mulswl d, w1, t
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.function video_orc_resample_h_muladdtaps_8
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.flags 2d
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.source 1 s guint32
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.source 2 t gint16
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.dest 4 d gint32
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.temp 2 w1
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.temp 4 t1
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convubw w1, s
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mulswl t1, w1, t
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addl d, d, t1
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.function video_orc_resample_h_scaletaps_8
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.source 4 s gint32
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.dest 1 d guint8
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.temp 2 w1
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.temp 4 t1
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addl t1, s, 4095
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shrsl t1, t1, 12
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convlw w1, t1
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convsuswb d, w1
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.function video_orc_resample_h_multaps_8_lq
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.source 1 s guint32
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.source 2 t gint16
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.dest 2 d gint32
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.temp 2 w1
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convubw w1, s
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mullw d, w1, t
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.function video_orc_resample_h_muladdtaps_8_lq
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.flags 2d
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.source 1 s guint32
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.source 2 t gint16
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.dest 2 d gint32
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.temp 2 w1
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.temp 2 t1
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convubw w1, s
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mullw t1, w1, t
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addw d, d, t1
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.function video_orc_resample_h_scaletaps_8_lq
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.source 2 s gint32
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.dest 1 d guint8
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.temp 2 w1
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addw w1, s, 32
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shrsw w1, w1, 6
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convsuswb d, w1
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@ -53,8 +53,13 @@ struct _GstVideoScaler
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/* cached integer coefficients */
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gint16 *taps_s16;
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gint16 *taps_s16_4;
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guint32 *offset_n;
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/* for ORC */
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gint inc;
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guint32 *tmpline1;
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guint32 *tmpline2;
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};
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static void
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@ -152,6 +157,10 @@ gst_video_scaler_new (GstVideoResamplerMethod method, GstVideoScalerFlags flags,
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else
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scale->inc = ((in_size - 1) << 16) / (out_size - 1) - 1;
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scale->tmpline1 =
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g_malloc (sizeof (gint32) * out_size * 4 * scale->resampler.max_taps);
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scale->tmpline2 = g_malloc (sizeof (gint32) * out_size * 4);
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return scale;
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}
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@ -168,6 +177,10 @@ gst_video_scaler_free (GstVideoScaler * scale)
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gst_video_resampler_clear (&scale->resampler);
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g_free (scale->taps_s16);
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g_free (scale->taps_s16_4);
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g_free (scale->offset_n);
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g_free (scale->tmpline1);
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g_free (scale->tmpline2);
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g_slice_free (GstVideoScaler, scale);
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}
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@ -263,9 +276,10 @@ resampler_convert_coeff (const gdouble * src,
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static void
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make_s16_taps (GstVideoScaler * scale, gint precision)
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{
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gint i, max_taps, n_phases;
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gint16 *taps_s16;
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gint i, j, max_taps, n_phases, out_size;
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gint16 *taps_s16, *taps_s16_4;
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gdouble *taps;
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guint32 *phase, *offset, *offset_n;
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n_phases = scale->resampler.n_phases;
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max_taps = scale->resampler.max_taps;
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@ -279,6 +293,30 @@ make_s16_taps (GstVideoScaler * scale, gint precision)
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taps += max_taps;
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taps_s16 += max_taps;
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}
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out_size = scale->resampler.out_size;
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taps_s16 = scale->taps_s16;
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phase = scale->resampler.phase;
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offset = scale->resampler.offset;
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taps_s16_4 = scale->taps_s16_4 =
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g_malloc (sizeof (gint16) * out_size * max_taps * 4);
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offset_n = scale->offset_n =
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g_malloc (sizeof (guint32) * out_size * max_taps);
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for (j = 0; j < max_taps; j++) {
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for (i = 0; i < out_size; i++) {
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gint16 tap;
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offset_n[j * out_size + i] = offset[i] + j;
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tap = taps_s16[phase[i] * max_taps + j];
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taps_s16_4[(j * out_size + i) * 4 + 0] = tap;
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taps_s16_4[(j * out_size + i) * 4 + 1] = tap;
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taps_s16_4[(j * out_size + i) * 4 + 2] = tap;
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taps_s16_4[(j * out_size + i) * 4 + 3] = tap;
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}
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}
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}
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static void
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@ -361,44 +399,54 @@ static void
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video_scale_h_ntap_8888 (GstVideoScaler * scale,
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gpointer src, gpointer dest, guint dest_offset, guint width)
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{
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gint16 *taps, *t;
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gint i, j, max_taps, sum0, sum1, sum2, sum3;
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guint8 *s, *d;
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guint32 *offset, *phase;
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gint16 *taps;
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gint i, max_taps, count;
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guint8 *d;
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guint32 *offset_n;
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guint32 *pixels;
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gint32 *temp;
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if (scale->taps_s16 == NULL)
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#ifdef LQ
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make_s16_taps (scale, 6);
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#else
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make_s16_taps (scale, S16_SCALE);
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#endif
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max_taps = scale->resampler.max_taps;
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offset = scale->resampler.offset + dest_offset;
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phase = scale->resampler.phase + dest_offset;
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taps = scale->taps_s16;
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offset_n = scale->offset_n;
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d = (guint8 *) dest + 4 * dest_offset;
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for (i = 0; i < width; i++) {
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s = (guint8 *) src + 4 * offset[i];
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t = taps + (phase[i] * max_taps);
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/* prepare the arrays FIXME, we can add this into ORC */
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count = width * max_taps;
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pixels = (guint32 *) scale->tmpline1;
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for (i = 0; i < count; i++)
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pixels[i] = ((guint32 *) src)[offset_n[i]];
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sum0 = sum1 = sum2 = sum3 = 0;
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for (j = 0; j < max_taps; j++) {
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sum0 += t[j] * s[j * 4 + 0];
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sum1 += t[j] * s[j * 4 + 1];
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sum2 += t[j] * s[j * 4 + 2];
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sum3 += t[j] * s[j * 4 + 3];
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}
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sum0 = (sum0 + S16_SCALE_ROUND) >> S16_SCALE;
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sum1 = (sum1 + S16_SCALE_ROUND) >> S16_SCALE;
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sum2 = (sum2 + S16_SCALE_ROUND) >> S16_SCALE;
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sum3 = (sum3 + S16_SCALE_ROUND) >> S16_SCALE;
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temp = (gint32 *) scale->tmpline2;
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taps = scale->taps_s16_4;
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count = width * 4;
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d[i * 4 + 0] = CLAMP (sum0, 0, 255);
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d[i * 4 + 1] = CLAMP (sum1, 0, 255);
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d[i * 4 + 2] = CLAMP (sum2, 0, 255);
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d[i * 4 + 3] = CLAMP (sum3, 0, 255);
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}
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#ifdef LQ
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/* first pixels with first tap to t4 */
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video_orc_resample_h_multaps_8_lq (temp, pixels, taps, count);
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/* add other pixels with other taps to t4 */
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video_orc_resample_h_muladdtaps_8_lq (temp, 0, pixels + width, count,
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taps + count, count * 2, count, max_taps - 1);
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/* scale and write final result */
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video_orc_resample_h_scaletaps_8_lq (d, temp, count);
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#else
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/* first pixels with first tap to t4 */
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video_orc_resample_h_multaps_8 (temp, pixels, taps, count);
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/* add other pixels with other taps to t4 */
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video_orc_resample_h_muladdtaps_8 (temp, 0, pixels + width, count,
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taps + count, count * 2, count, max_taps - 1);
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/* scale and write final result */
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video_orc_resample_h_scaletaps_8 (d, temp, count);
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#endif
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}
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static void
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video_scale_v_near_8888 (GstVideoScaler * scale,
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gpointer srcs[], gpointer dest, guint dest_offset, guint width)
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@ -435,6 +483,40 @@ video_scale_v_2tap_8888 (GstVideoScaler * scale,
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#endif
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}
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#if 0
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static void
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video_scale_h_4tap_8888 (GstVideoScaler * scale,
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gpointer src, gpointer dest, guint dest_offset, guint width)
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{
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gint16 *taps;
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gint i, max_taps, count;
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guint8 *d;
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guint32 *offset_n;
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guint32 *pixels;
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if (scale->taps_s16 == NULL)
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make_s16_taps (scale, S16_SCALE);
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max_taps = scale->resampler.max_taps;
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offset_n = scale->offset_n;
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d = (guint8 *) dest + 4 * dest_offset;
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/* prepare the arrays FIXME, we can add this into ORC */
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count = width * max_taps;
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pixels = (guint32 *) scale->tmpline1;
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for (i = 0; i < count; i++)
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pixels[i] = ((guint32 *) src)[offset_n[i]];
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taps = scale->taps_s16_4;
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count = width * 4;
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video_orc_resample_h_4tap_8 (d, pixels, pixels + width, pixels + 2 * width,
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pixels + 3 * width, taps, taps + count, taps + 2 * count,
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taps + 3 * count, count);
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}
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#endif
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static void
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video_scale_v_4tap_8888 (GstVideoScaler * scale,
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gpointer srcs[], gpointer dest, guint dest_offset, guint width)
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