997b5fe45d
Draw thumbnails as strip overlay. This works for movie and image strips. To draw thumbnails, this overlay has to be enabled and strips must be tall enough. The thumbnails are loaded from source file using separate thread and stored in cache. Drawing code uses only images stored in cache, and if any is missing, background rendering job is started. If job can not render thumbnail, to prevent endless loop of creating job for missing image it sets `SEQ_FLAG_SKIP_THUMBNAILS` bit of `Sequence` flag. To prevent visual glitches during timeline panning and zooming, `View2D` flag `V2D_IS_NAVIGATING` is implemented. If bit is set, drawing code will look for set of evenly distributed thumbnails that should be guaranteed to exist and also set of previously displayed thumbnails. Due to volatile nature of cache these thumbnails can be missing anyway, in which case no new thumbnails will be drawn for particular strip. Cache capacity is limited to 5000 thumbnails and performs cleanup of non visible images when limit is reached. ref T89143 Reviewed By: ISS Differential Revision: https://developer.blender.org/D12266
64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2004 Blender Foundation.
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* All rights reserved.
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*/
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#pragma once
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/** \file
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* \ingroup sequencer
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*/
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#include "DNA_scene_types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct ListBase;
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struct Mask;
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struct Scene;
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struct Sequence;
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struct StripElem;
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struct SeqRenderData;
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void SEQ_sort(struct ListBase *seqbase);
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void SEQ_sequence_base_unique_name_recursive(struct Scene *scene,
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struct ListBase *seqbasep,
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struct Sequence *seq);
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const char *SEQ_sequence_give_name(struct Sequence *seq);
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struct ListBase *SEQ_get_seqbase_from_sequence(struct Sequence *seq, int *r_offset);
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const struct Sequence *SEQ_get_topmost_sequence(const struct Scene *scene, int frame);
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struct ListBase *SEQ_get_seqbase_by_seq(struct ListBase *seqbase, struct Sequence *seq);
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struct Sequence *SEQ_sequence_from_strip_elem(struct ListBase *seqbase, struct StripElem *se);
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struct Sequence *SEQ_get_sequence_by_name(struct ListBase *seqbase,
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const char *name,
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bool recursive);
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struct Mask *SEQ_active_mask_get(struct Scene *scene);
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void SEQ_alpha_mode_from_file_extension(struct Sequence *seq);
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bool SEQ_sequence_has_source(const struct Sequence *seq);
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void SEQ_set_scale_to_fit(const struct Sequence *seq,
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const int image_width,
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const int image_height,
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const int preview_width,
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const int preview_height,
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const eSeqImageFitMethod fit_method);
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void SEQ_ensure_unique_name(struct Sequence *seq, struct Scene *scene);
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#ifdef __cplusplus
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}
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#endif
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