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../gegl/operation/gegl-operation-temporal.h

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<FONT COLOR="#B22222">/* This file is part of GEGL
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 *
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 * GEGL is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 3 of the License, or (at your option) any later version.
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 *
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 * GEGL is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
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 *
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 * Copyright 2008 Øyvind Kolås
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 */</FONT>
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<FONT COLOR="#B22222">/* GeglOperationTemporal
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 * Base class for operations that want access to previous frames in a video sequence,
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 * it contains API to configure the amounts of frames to store as well as getting a
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 * GeglBuffer pointing to any of the previously stored frames.
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 */</FONT>
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#<FONT COLOR="#5F9EA0">ifndef</FONT> <FONT COLOR="#B8860B">__GEGL_OPERATION_TEMPORAL_H__</FONT>
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#<FONT COLOR="#5F9EA0">define</FONT> <FONT COLOR="#B8860B">__GEGL_OPERATION_TEMPORAL_H__</FONT>
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#<FONT COLOR="#5F9EA0">include</FONT> <FONT COLOR="#BC8F8F">"gegl-operation-filter.h"</FONT>
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G_BEGIN_DECLS
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#<FONT COLOR="#5F9EA0">define</FONT> <FONT COLOR="#B8860B">GEGL_TYPE_OPERATION_TEMPORAL</FONT>            (gegl_operation_temporal_get_type ())
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#<FONT COLOR="#5F9EA0">define</FONT> <FONT COLOR="#0000FF">GEGL_OPERATION_TEMPORAL</FONT>(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GEGL_TYPE_OPERATION_TEMPORAL, GeglOperationTemporal))
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#<FONT COLOR="#5F9EA0">define</FONT> <FONT COLOR="#0000FF">GEGL_OPERATION_TEMPORAL_CLASS</FONT>(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  GEGL_TYPE_OPERATION_TEMPORAL, GeglOperationTemporalClass))
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#<FONT COLOR="#5F9EA0">define</FONT> <FONT COLOR="#0000FF">GEGL_IS_OPERATION_TEMPORAL</FONT>(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GEGL_TYPE_OPERATION_TEMPORAL))
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#<FONT COLOR="#5F9EA0">define</FONT> <FONT COLOR="#0000FF">GEGL_IS_OPERATION_TEMPORAL_CLASS</FONT>(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  GEGL_TYPE_OPERATION_TEMPORAL))
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#<FONT COLOR="#5F9EA0">define</FONT> <FONT COLOR="#0000FF">GEGL_OPERATION_TEMPORAL_GET_CLASS</FONT>(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  GEGL_TYPE_OPERATION_TEMPORAL, GeglOperationTemporalClass))
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<FONT COLOR="#228B22">typedef</FONT> <FONT COLOR="#228B22">struct</FONT> _GeglOperationTemporal         GeglOperationTemporal;
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<FONT COLOR="#228B22">typedef</FONT> <FONT COLOR="#228B22">struct</FONT> _GeglOperationTemporalPrivate  GeglOperationTemporalPrivate;
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<FONT COLOR="#228B22">struct</FONT> _GeglOperationTemporal
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{
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  GeglOperationFilter parent_instance;
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  GeglOperationTemporalPrivate *priv;
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};
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<FONT COLOR="#228B22">typedef</FONT> <FONT COLOR="#228B22">struct</FONT> _GeglOperationTemporalClass GeglOperationTemporalClass;
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<FONT COLOR="#228B22">struct</FONT> _GeglOperationTemporalClass
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{
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  GeglOperationFilterClass parent_class;
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  gboolean (* process) (GeglOperation       *self,
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                        GeglBuffer          *input,
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                        GeglBuffer          *output,
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                        <FONT COLOR="#228B22">const</FONT> GeglRectangle *roi,
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                        gint                 level);
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  gpointer              pad[4];
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};
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GType <FONT COLOR="#0000FF">gegl_operation_temporal_get_type</FONT> (<FONT COLOR="#228B22">void</FONT>) G_GNUC_CONST;
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<FONT COLOR="#228B22">void</FONT> <FONT COLOR="#0000FF">gegl_operation_temporal_set_history_length</FONT> (GeglOperation *op,
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                                                 gint           history_length);
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guint <FONT COLOR="#0000FF">gegl_operation_temporal_get_history_length</FONT> (GeglOperation *op);
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<FONT COLOR="#B22222">/* you need to unref the buffer when you're done with it */</FONT>
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GeglBuffer *<FONT COLOR="#0000FF">gegl_operation_temporal_get_frame</FONT> (GeglOperation *op,
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                                               gint           frame);
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G_END_DECLS
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#<FONT COLOR="#5F9EA0">endif</FONT>
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