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videoscale: Add AYUV64 path to Lanczos

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This commit is contained in:
David Schleef 2012-01-25 15:49:00 -08:00
parent 19141759c1
commit e4f01106d0
3 changed files with 109 additions and 10 deletions
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5
gst/videoscale/gstvideoscale.c
View file

@ -1199,6 +1199,11 @@ gst_video_scale_transform (GstBaseTransform * trans, GstBuffer * in,
case GST_VIDEO_SCALE_4TAP:
vs_image_scale_4tap_AYUV64 (&dest, &src, videoscale->tmp_buf);
break;
case GST_VIDEO_SCALE_LANCZOS:
vs_image_scale_lanczos_AYUV64 (&dest, &src, videoscale->tmp_buf,
videoscale->sharpness, videoscale->dither, videoscale->submethod,
videoscale->envelope, videoscale->sharpen);
break;
default:
goto unknown_mode;
}

3
gst/videoscale/vs_image.h
View file

@ -52,6 +52,9 @@ void vs_image_scale_linear_RGBA (const VSImage *dest, const VSImage *src,
void vs_image_scale_lanczos_AYUV (const VSImage * dest, const VSImage * src,
uint8_t * tmpbuf, double sharpness, gboolean dither, int submethod,
double a, double sharpen);
void vs_image_scale_lanczos_AYUV64 (const VSImage * dest, const VSImage * src,
uint8_t * tmpbuf, double sharpness, gboolean dither, int submethod,
double a, double sharpen);
void vs_image_scale_nearest_RGB (const VSImage *dest, const VSImage *src,
uint8_t *tmpbuf);

111
gst/videoscale/vs_lanczos.c
View file

@ -204,6 +204,9 @@ static void vs_image_scale_lanczos_AYUV_float (const VSImage * dest,
static void vs_image_scale_lanczos_AYUV_double (const VSImage * dest,
const VSImage * src, uint8_t * tmpbuf, double sharpness, gboolean dither,
double a, double sharpen);
static void vs_image_scale_lanczos_AYUV64_double (const VSImage * dest,
const VSImage * src, uint8_t * tmpbuf, double sharpness, gboolean dither,
double a, double sharpen);
static double
sinc (double x)
@ -590,6 +593,15 @@ vs_image_scale_lanczos_AYUV (const VSImage * dest, const VSImage * src,
}
}
void
vs_image_scale_lanczos_AYUV64 (const VSImage * dest, const VSImage * src,
uint8_t * tmpbuf, double sharpness, gboolean dither, int submethod,
double a, double sharpen)
{
vs_image_scale_lanczos_AYUV64_double (dest, src, tmpbuf, sharpness, dither,
a, sharpen);
}
#define RESAMPLE_HORIZ_FLOAT(function, dest_type, tap_type, src_type, _n_taps) \
@ -813,9 +825,9 @@ RESAMPLE_VERT_DITHER (resample_vert_dither_int16_generic, gint16, gint16,
n_taps, shift)
/* *INDENT-ON* */
#define RESAMPLE_VERT_FLOAT(function, tap_type, src_type, _n_taps, _shift) \
#define RESAMPLE_VERT_FLOAT(function, dest_type, clamp, tap_type, src_type, _n_taps, _shift) \
static void \
function (guint8 *dest, \
function (dest_type *dest, \
const tap_type *taps, const src_type *src, int stride, int n_taps, \
int shift, int n) \
{ \
@ -828,13 +840,13 @@ function (guint8 *dest, \
const src_type *line = PTR_OFFSET(src, stride * l); \
sum_y += line[i] * taps[l]; \
} \
dest[i] = CLAMP (floor(0.5 + sum_y), 0, 255); \
dest[i] = CLAMP (floor(0.5 + sum_y), 0, clamp); \
} \
}
#define RESAMPLE_VERT_FLOAT_DITHER(function, tap_type, src_type, _n_taps, _shift) \
#define RESAMPLE_VERT_FLOAT_DITHER(function, dest_type, clamp, tap_type, src_type, _n_taps, _shift) \
static void \
function (guint8 *dest, \
function (dest_type *dest, \
const tap_type *taps, const src_type *src, int stride, int n_taps, \
int shift, int n) \
{ \
@ -849,19 +861,24 @@ function (guint8 *dest, \
sum_y += line[i] * taps[l]; \
} \
err_y += sum_y; \
dest[i] = CLAMP (floor (err_y), 0, 255); \
dest[i] = CLAMP (floor (err_y), 0, clamp); \
err_y -= floor (err_y); \
} \
}
/* *INDENT-OFF* */
RESAMPLE_VERT_FLOAT (resample_vert_double_generic, double, double, n_taps,
RESAMPLE_VERT_FLOAT (resample_vert_double_generic, guint8, 255, double, double, n_taps,
shift)
RESAMPLE_VERT_FLOAT_DITHER (resample_vert_dither_double_generic, double, double,
RESAMPLE_VERT_FLOAT_DITHER (resample_vert_dither_double_generic, guint8, 255, double, double,
n_taps, shift)
RESAMPLE_VERT_FLOAT (resample_vert_float_generic, float, float, n_taps, shift)
RESAMPLE_VERT_FLOAT_DITHER (resample_vert_dither_float_generic, float, float,
RESAMPLE_VERT_FLOAT (resample_vert_double_generic_u16, guint16, 65535, double, double, n_taps,
shift)
RESAMPLE_VERT_FLOAT_DITHER (resample_vert_dither_double_generic_u16, guint16, 65535, double, double,
n_taps, shift)
RESAMPLE_VERT_FLOAT (resample_vert_float_generic, guint8, 255, float, float, n_taps, shift)
RESAMPLE_VERT_FLOAT_DITHER (resample_vert_dither_float_generic, guint8, 255, float, float,
n_taps, shift)
/* *INDENT-ON* */
@ -1556,3 +1573,77 @@ vs_image_scale_lanczos_AYUV_float (const VSImage * dest, const VSImage * src,
scale1d_cleanup (&scale->y_scale1d);
g_free (scale->tmpdata);
}
static void
vs_scale_lanczos_AYUV64_double (Scale * scale)
{
int j;
int yi;
int tmp_yi;
tmp_yi = 0;
for (j = 0; j < scale->dest->height; j++) {
guint16 *destline;
double *taps;
destline = (guint16 *) (scale->dest->pixels + scale->dest->stride * j);
yi = scale->y_scale1d.offsets[j];
while (tmp_yi < yi + scale->y_scale1d.n_taps) {
scale->horiz_resample_func (TMP_LINE_DOUBLE_AYUV (tmp_yi),
scale->x_scale1d.offsets, scale->x_scale1d.taps, SRC_LINE (tmp_yi),
scale->x_scale1d.n_taps, 0, scale->dest->width);
tmp_yi++;
}
taps = (double *) scale->y_scale1d.taps + j * scale->y_scale1d.n_taps;
if (scale->dither) {
resample_vert_dither_double_generic_u16 (destline,
taps, TMP_LINE_DOUBLE_AYUV (scale->y_scale1d.offsets[j]),
sizeof (double) * 4 * scale->dest->width,
scale->y_scale1d.n_taps, 0, scale->dest->width * 4);
} else {
resample_vert_double_generic_u16 (destline,
taps, TMP_LINE_DOUBLE_AYUV (scale->y_scale1d.offsets[j]),
sizeof (double) * 4 * scale->dest->width,
scale->y_scale1d.n_taps, 0, scale->dest->width * 4);
}
}
}
void
vs_image_scale_lanczos_AYUV64_double (const VSImage * dest, const VSImage * src,
uint8_t * tmpbuf, double sharpness, gboolean dither, double a,
double sharpen)
{
Scale s = { 0 };
Scale *scale = &s;
int n_taps;
scale->dest = dest;
scale->src = src;
n_taps = scale1d_get_n_taps (src->width, dest->width, a, sharpness);
scale1d_calculate_taps (&scale->x_scale1d,
src->width, dest->width, n_taps, a, sharpness, sharpen);
n_taps = scale1d_get_n_taps (src->height, dest->height, a, sharpness);
scale1d_calculate_taps (&scale->y_scale1d,
src->height, dest->height, n_taps, a, sharpness, sharpen);
scale->dither = dither;
scale->horiz_resample_func =
(HorizResampleFunc) resample_horiz_double_ayuv_generic;
scale->tmpdata =
g_malloc (sizeof (double) * scale->dest->width * scale->src->height * 4);
vs_scale_lanczos_AYUV64_double (scale);
scale1d_cleanup (&scale->x_scale1d);
scale1d_cleanup (&scale->y_scale1d);
g_free (scale->tmpdata);
}