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app: in GimpOperationGradient, use sampler for reading the distance buffer

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... instead of using gegl_buffer_get() directly.  This is slightly
faster.
This commit is contained in:
Ell
2018-05-25 12:07:38 -04:00
parent 6ebff7b3c5
commit ef43fc395c
1 changed files with 26 additions and 26 deletions
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40
app/operations/gimpoperationgradient.c
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@ -74,7 +74,7 @@ typedef struct
gdouble dist;
gdouble vec[2];
GimpRepeatMode repeat;
GeglBuffer *dist_buffer;
GeglSampler *dist_sampler;
} RenderBlendData;
@ -140,13 +140,13 @@ static gdouble gradient_calc_spiral_factor (gdouble
gdouble y,
gboolean clockwise);
static gdouble gradient_calc_shapeburst_angular_factor (GeglBuffer *dist_buffer,
static gdouble gradient_calc_shapeburst_angular_factor (GeglSampler *dist_sampler,
gdouble x,
gdouble y);
static gdouble gradient_calc_shapeburst_spherical_factor (GeglBuffer *dist_buffer,
static gdouble gradient_calc_shapeburst_spherical_factor (GeglSampler *dist_sampler,
gdouble x,
gdouble y);
static gdouble gradient_calc_shapeburst_dimpled_factor (GeglBuffer *dist_buffer,
static gdouble gradient_calc_shapeburst_dimpled_factor (GeglSampler *dist_sampler,
gdouble x,
gdouble y);
@ -794,15 +794,13 @@ gradient_calc_spiral_factor (gdouble dist,
}
static gdouble
gradient_calc_shapeburst_angular_factor (GeglBuffer *dist_buffer,
gradient_calc_shapeburst_angular_factor (GeglSampler *dist_sampler,
gdouble x,
gdouble y)
{
gfloat value;
gegl_buffer_get (dist_buffer, GEGL_RECTANGLE (x, y, 1, 1), 1.0,
NULL, &value,
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
gegl_sampler_get (dist_sampler, x, y, NULL, &value, GEGL_ABYSS_NONE);
value = 1.0 - value;
@ -811,15 +809,13 @@ gradient_calc_shapeburst_angular_factor (GeglBuffer *dist_buffer,
static gdouble
gradient_calc_shapeburst_spherical_factor (GeglBuffer *dist_buffer,
gradient_calc_shapeburst_spherical_factor (GeglSampler *dist_sampler,
gdouble x,
gdouble y)
{
gfloat value;
gegl_buffer_get (dist_buffer, GEGL_RECTANGLE (x, y, 1, 1), 1.0,
NULL, &value,
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
gegl_sampler_get (dist_sampler, x, y, NULL, &value, GEGL_ABYSS_NONE);
value = 1.0 - sin (0.5 * G_PI * value);
@ -828,15 +824,13 @@ gradient_calc_shapeburst_spherical_factor (GeglBuffer *dist_buffer,
static gdouble
gradient_calc_shapeburst_dimpled_factor (GeglBuffer *dist_buffer,
gradient_calc_shapeburst_dimpled_factor (GeglSampler *dist_sampler,
gdouble x,
gdouble y)
{
gfloat value;
gegl_buffer_get (dist_buffer, GEGL_RECTANGLE (x, y, 1, 1), 1.0,
NULL, &value,
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
gegl_sampler_get (dist_sampler, x, y, NULL, &value, GEGL_ABYSS_NONE);
value = cos (0.5 * G_PI * value);
@ -896,15 +890,18 @@ gradient_render_pixel (gdouble x,
break;
case GIMP_GRADIENT_SHAPEBURST_ANGULAR:
factor = gradient_calc_shapeburst_angular_factor (rbd->dist_buffer, x, y);
factor = gradient_calc_shapeburst_angular_factor (rbd->dist_sampler,
x, y);
break;
case GIMP_GRADIENT_SHAPEBURST_SPHERICAL:
factor = gradient_calc_shapeburst_spherical_factor (rbd->dist_buffer, x, y);
factor = gradient_calc_shapeburst_spherical_factor (rbd->dist_sampler,
x, y);
break;
case GIMP_GRADIENT_SHAPEBURST_DIMPLED:
factor = gradient_calc_shapeburst_dimpled_factor (rbd->dist_buffer, x, y);
factor = gradient_calc_shapeburst_dimpled_factor (rbd->dist_sampler,
x, y);
break;
case GIMP_GRADIENT_SPIRAL_CLOCKWISE:
@ -1081,7 +1078,8 @@ gimp_operation_gradient_process (GeglOperation *operation,
case GIMP_GRADIENT_SHAPEBURST_SPHERICAL:
case GIMP_GRADIENT_SHAPEBURST_DIMPLED:
rbd.dist = sqrt (SQR (ex - sx) + SQR (ey - sy));
rbd.dist_buffer = input;
rbd.dist_sampler = gegl_buffer_sampler_new_at_level (
input, babl_format ("Y float"), GEGL_SAMPLER_NEAREST, level);
break;
default:
@ -1196,6 +1194,8 @@ gimp_operation_gradient_process (GeglOperation *operation,
g_rand_free (seed);
}
g_clear_object (&rbd.dist_sampler);
return TRUE;
}