void
gegl_operation_set_key (const gchar *operation_name,
const gchar *key_name,
const gchar *key_value)
{
GType type;
GObjectClass *klass;
type = gegl_operation_gtype_from_name (operation_name);
if (!type)
return;
klass = g_type_class_ref (type);
gegl_operation_class_set_key (GEGL_OPERATION_CLASS (klass), key_name, key_value);
g_type_class_unref (klass);
}
void
gegl_operation_class_set_keys (GeglOperationClass *klass,
const gchar *key_name,
...)
{
va_list var_args;
va_start (var_args, key_name);
while (key_name)
{
const char *value = va_arg (var_args, char *);
gegl_operation_class_set_key (klass, key_name, value);
key_name = va_arg (var_args, char *);
}
va_end (var_args);
}
static void
gegl_chant_class_init (GeglChantClass *klass)
{
GeglOperationClass *operation_class;
GeglOperationPointComposerClass *point_composer_class;
operation_class = GEGL_OPERATION_CLASS (klass);
point_composer_class = GEGL_OPERATION_POINT_COMPOSER_CLASS (klass);
point_composer_class->process = process;
operation_class->prepare = prepare;
gegl_operation_class_set_keys (operation_class,
"name" , "gegl:soft-light",
"description" ,
_("SVG blend operation soft-light (<code>if 2 * cA < aA: d = cB * (aA - (aB == 0 ? 1 : 1 - cB / aB) * (2 * cA - aA)) + cA * (1 - aB) + cB * (1 - aA); if 8 * cB <= aB: d = cB * (aA - (aB == 0 ? 1 : 1 - cB / aB) * (2 * cA - aA) * (aB == 0 ? 3 : 3 - 8 * cB / aB)) + cA * (1 - aB) + cB * (1 - aA); otherwise: d = (aA * cB + (aB == 0 ? 0 : sqrt (cB / aB) * aB - cB) * (2 * cA - aA)) + cA * (1 - aB) + cB * (1 - aA)</code>)"),
NULL);
gegl_operation_class_set_key (operation_class, "categories", "compositors:svgfilter");
}
static void
gegl_chant_class_init (GeglChantClass *klass)
{
GeglOperationClass *operation_class;
GeglOperationPointComposerClass *point_composer_class;
operation_class = GEGL_OPERATION_CLASS (klass);
point_composer_class = GEGL_OPERATION_POINT_COMPOSER_CLASS (klass);
point_composer_class->process = process;
operation_class->process = operation_process;
operation_class->prepare = prepare;
gegl_operation_class_set_keys (operation_class,
"name" , "svg:difference",
"compat-name" , "gegl:difference",
"description" ,
_("SVG blend operation difference (<code>d = cA + cB - 2 * (MIN (cA * aB, cB * aA))</code>)"),
NULL);
gegl_operation_class_set_key (operation_class, "categories", "compositors:svgfilter");
}
static void
gegl_chant_class_init (GeglChantClass *klass)
{
GeglOperationClass *operation_class;
GeglOperationPointComposerClass *point_composer_class;
operation_class = GEGL_OPERATION_CLASS (klass);
point_composer_class = GEGL_OPERATION_POINT_COMPOSER_CLASS (klass);
point_composer_class->process = process;
operation_class->prepare = prepare;
operation_class->compat_name = "gegl:exclusion";
gegl_operation_class_set_keys (operation_class,
"name" , "svg:exclusion",
"description" ,
_("SVG blend operation exclusion (<tt>d = (cA * aB + cB * aA - 2 * cA * cB) + cA * (1 - aB) + cB * (1 - aA)</tt>)"),
NULL);
gegl_operation_class_set_key (operation_class, "categories", "compositors:svgfilter");
}
static void
gegl_chant_class_init (GeglChantClass *klass)
{
GeglOperationClass *operation_class;
GeglOperationPointComposerClass *point_composer_class;
operation_class = GEGL_OPERATION_CLASS (klass);
point_composer_class = GEGL_OPERATION_POINT_COMPOSER_CLASS (klass);
point_composer_class->process = process;
operation_class->process = operation_process;
operation_class->prepare = prepare;
operation_class->compat_name = "gegl:hard-light";
gegl_operation_class_set_keys (operation_class,
"name" , "svg:hard-light",
"description" ,
_("SVG blend operation hard-light (<code>if 2 * cA < aA: d = 2 * cA * cB + cA * (1 - aB) + cB * (1 - aA) otherwise: d = aA * aB - 2 * (aB - cB) * (aA - cA) + cA * (1 - aB) + cB * (1 - aA)</code>)"),
NULL);
gegl_operation_class_set_key (operation_class, "categories", "compositors:svgfilter");
}
static void
gegl_op_class_init (GeglOpClass *klass)
{
GeglOperationClass *operation_class;
GeglOperationPointComposerClass *point_composer_class;
operation_class = GEGL_OPERATION_CLASS (klass);
point_composer_class = GEGL_OPERATION_POINT_COMPOSER_CLASS (klass);
point_composer_class->process = process;
operation_class->process = operation_process;
operation_class->prepare = prepare;
gegl_operation_class_set_keys (operation_class,
"name" , "svg:screen",
"compat-name" , "gegl:screen",
"reference-hash" , "dd4057b688a2721774557d5637e59a50",
"description" ,
_("SVG blend operation screen (<code>d = cA + cB - cA * cB</code>)"),
NULL);
gegl_operation_class_set_key (operation_class, "categories", "compositors:svgfilter");
}
static void
gegl_op_class_init (GeglOpClass *klass)
{
GeglOperationClass *operation_class;
GeglOperationPointComposerClass *point_composer_class;
operation_class = GEGL_OPERATION_CLASS (klass);
point_composer_class = GEGL_OPERATION_POINT_COMPOSER_CLASS (klass);
point_composer_class->process = process;
operation_class->process = operation_process;
operation_class->prepare = prepare;
gegl_operation_class_set_keys (operation_class,
"name" , "svg:color-burn",
"compat-name" , "gegl:color-burn",
"title" , "Color-burn",
"description" ,
_("SVG blend operation color-burn (<code>if cA * aB + cB * aA <= aA * aB: d = cA * (1 - aB) + cB * (1 - aA) otherwise: d = (cA == 0 ? 1 : (aA * (cA * aB + cB * aA - aA * aB) / cA) + cA * (1 - aB) + cB * (1 - aA))</code>)"),
NULL);
gegl_operation_class_set_key (operation_class, "categories", "compositors:svgfilter");
}
static void
gegl_op_class_init (GeglOpClass *klass)
{
GeglOperationClass *operation_class;
GeglOperationPointComposerClass *point_composer_class;
operation_class = GEGL_OPERATION_CLASS (klass);
point_composer_class = GEGL_OPERATION_POINT_COMPOSER_CLASS (klass);
point_composer_class->process = process;
operation_class->process = operation_process;
operation_class->prepare = prepare;
gegl_operation_class_set_keys (operation_class,
"name" , "svg:overlay",
"compat-name" , "gegl:overlay",
"title" , "Overlay",
"reference-hash" , "0148854c1b7d80cca8f015e216ce8fa3",
"description" ,
_("SVG blend operation overlay (<code>if 2 * cB > aB: d = 2 * cA * cB + cA * (1 - aB) + cB * (1 - aA) otherwise: d = aA * aB - 2 * (aB - cB) * (aA - cA) + cA * (1 - aB) + cB * (1 - aA)</code>)"),
NULL);
gegl_operation_class_set_key (operation_class, "categories", "compositors:svgfilter");
}
