# ../gegl/operation/gegl-operation-point-render.h

    /* This file is part of GEGL
     *
     * GEGL is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 3 of the License, or (at your option) any later version.
     *
     * GEGL is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     * Lesser General Public License for more details.
     *
     * You should have received a copy of the GNU Lesser General Public
     * License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
     *
     * Copyright 2006 Øyvind Kolås
     */

    /* GeglOperationPointRender
     * The point-render base class is a specialized source operation, where the render is done
     * in small piece to lower the need to do copies. It's dedicated to operation which may be
     * rendered in pieces, like pattern generation.
     */

    #ifndef __GEGL_OPERATION_POINT_RENDER_H__
    #define __GEGL_OPERATION_POINT_RENDER_H__

    #include "gegl-operation-source.h"

    G_BEGIN_DECLS

    #define GEGL_TYPE_OPERATION_POINT_RENDER            (gegl_operation_point_render_get_type ())
    #define GEGL_OPERATION_POINT_RENDER(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GEGL_TYPE_OPERATION_POINT_RENDER, GeglOperationPointRender))
    #define GEGL_OPERATION_POINT_RENDER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  GEGL_TYPE_OPERATION_POINT_RENDER, GeglOperationPointRenderClass))
    #define GEGL_IS_OPERATION_POINT_RENDER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GEGL_TYPE_OPERATION_POINT_RENDER))
    #define GEGL_IS_OPERATION_POINT_RENDER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  GEGL_TYPE_OPERATION_POINT_RENDER))
    #define GEGL_OPERATION_POINT_RENDER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  GEGL_TYPE_OPERATION_POINT_RENDER, GeglOperationPointRenderClass))

    typedef struct _GeglOperationPointRender  GeglOperationPointRender;
    struct _GeglOperationPointRender
    {
      GeglOperationSource parent_instance;
    };

    typedef struct _GeglOperationPointRenderClass GeglOperationPointRenderClass;
    struct _GeglOperationPointRenderClass
    {
      GeglOperationSourceClass parent_class;

      gboolean (* process) (GeglOperation       *self,      /* for parameters    */
                            void                *out_buf,   /* output buffer     */
                            glong                samples,   /* number of samples */
                            const GeglRectangle *roi,       /* can be used if position is of importance*/
                            gint                 level);
      gpointer              pad[4];
    };

    GType gegl_operation_point_render_get_type (void) G_GNUC_CONST;

    G_END_DECLS

    #endif