154 lines
4.3 KiB
C
154 lines
4.3 KiB
C
/*
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* Copyright © 2020 Benjamin Otte
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*
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* This library 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 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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#include "config.h"
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#include "ottiecompositionlayerprivate.h"
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#include "ottiedoublevalueprivate.h"
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#include <glib/gi18n-lib.h>
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#include <gsk/gsk.h>
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struct _OttieCompositionLayer
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{
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OttieLayer parent;
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OttieDoubleValue time_map;
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double width;
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double height;
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char *ref_id;
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OttieComposition *composition;
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};
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struct _OttieCompositionLayerClass
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{
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OttieLayerClass parent_class;
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};
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G_DEFINE_TYPE (OttieCompositionLayer, ottie_composition_layer, OTTIE_TYPE_LAYER)
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static void
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ottie_composition_layer_update (OttieLayer *layer,
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GHashTable *compositions)
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{
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OttieCompositionLayer *self = OTTIE_COMPOSITION_LAYER (layer);
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g_clear_object (&self->composition);
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if (self->ref_id)
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self->composition = g_object_ref (g_hash_table_lookup (compositions, self->ref_id));
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}
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static void
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ottie_composition_layer_render (OttieLayer *layer,
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OttieRender *render,
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double timestamp)
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{
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OttieCompositionLayer *self = OTTIE_COMPOSITION_LAYER (layer);
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GskRenderNode *node;
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double time_map;
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if (self->composition == NULL)
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return;
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if (ottie_double_value_is_static (&self->time_map))
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time_map = timestamp;
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else
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time_map = ottie_double_value_get (&self->time_map, timestamp);
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ottie_layer_render (OTTIE_LAYER (self->composition),
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render,
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time_map);
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node = ottie_render_get_node (render);
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ottie_render_clear_nodes (render);
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if (node)
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{
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ottie_render_add_node (render,
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gsk_clip_node_new (node,
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&GRAPHENE_RECT_INIT (
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0, 0,
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self->width, self->height
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)));
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gsk_render_node_unref (node);
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}
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}
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static void
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ottie_composition_layer_dispose (GObject *object)
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{
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OttieCompositionLayer *self = OTTIE_COMPOSITION_LAYER (object);
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g_clear_object (&self->composition);
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g_clear_pointer (&self->ref_id, g_free);
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ottie_double_value_clear (&self->time_map);
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G_OBJECT_CLASS (ottie_composition_layer_parent_class)->dispose (object);
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}
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static void
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ottie_composition_layer_class_init (OttieCompositionLayerClass *klass)
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{
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OttieLayerClass *layer_class = OTTIE_LAYER_CLASS (klass);
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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layer_class->update = ottie_composition_layer_update;
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layer_class->render = ottie_composition_layer_render;
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gobject_class->dispose = ottie_composition_layer_dispose;
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}
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static void
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ottie_composition_layer_init (OttieCompositionLayer *self)
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{
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ottie_double_value_init (&self->time_map, 0);
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}
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OttieLayer *
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ottie_composition_layer_parse (JsonReader *reader)
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{
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OttieParserOption options[] = {
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OTTIE_PARSE_OPTIONS_LAYER,
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{ "refId", ottie_parser_option_string, G_STRUCT_OFFSET (OttieCompositionLayer, ref_id) },
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{ "tm", ottie_double_value_parse, 0 },
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{ "w", ottie_parser_option_double, G_STRUCT_OFFSET (OttieCompositionLayer, width) },
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{ "h", ottie_parser_option_double, G_STRUCT_OFFSET (OttieCompositionLayer, height) },
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};
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OttieCompositionLayer *self;
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self = g_object_new (OTTIE_TYPE_COMPOSITION_LAYER, NULL);
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if (!ottie_parser_parse_object (reader, "composition layer", options, G_N_ELEMENTS (options), self))
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{
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g_object_unref (self);
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return NULL;
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}
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return OTTIE_LAYER (self);
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}
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OttieComposition *
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ottie_composition_layer_get_composition (OttieCompositionLayer *self)
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{
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g_return_val_if_fail (OTTIE_IS_COMPOSITION_LAYER (self), NULL);
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return self->composition;
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}
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