void
gegl_sampler_prepare (GeglSampler *self)
{
GeglSamplerClass *klass;
g_return_if_fail (GEGL_IS_SAMPLER (self));
klass = GEGL_SAMPLER_GET_CLASS (self);
if (klass->prepare)
klass->prepare (self);
self->fish = babl_fish (self->interpolate_format, self->format);
/*
* This makes the cache rect invalid, in case the data in the buffer
* has changed:
*/
self->sampler_rectangle[0].width = 0;
self->sampler_rectangle[0].height = 0;
#if 0
if (self->cache_buffer) /* Force a regetting of the region, even
though the cached getter may be valid. */
{
g_free (self->cache_buffer);
self->cache_buffer = NULL;
}
#endif
self->get = klass->get; /* cache the sampler in the instance */
}
void
gegl_sampler_prepare (GeglSampler *self)
{
GeglSamplerClass *klass;
g_return_if_fail (GEGL_IS_SAMPLER (self));
klass = GEGL_SAMPLER_GET_CLASS (self);
if (!self->buffer) /* happens when extent of sampler is queried */
return;
if (!self->format)
self->format = self->buffer->soft_format;
if (klass->prepare)
klass->prepare (self);
if (!self->fish)
self->fish = babl_fish (self->interpolate_format, self->format);
/*
* This makes the cache rect invalid, in case the data in the buffer
* has changed:
*/
self->level[0].sampler_rectangle.width = 0;
self->level[0].sampler_rectangle.height = 0;
}
void
gegl_sampler_set_buffer (GeglSampler *self, GeglBuffer *buffer)
{
GeglSamplerClass *klass;
g_return_if_fail (GEGL_IS_SAMPLER (self));
klass = GEGL_SAMPLER_GET_CLASS (self);
if (klass->set_buffer)
klass->set_buffer (self, buffer);
}