97297bd167
When effect of adjustment layer strip is moved below the adjustment layer, this causes infinite loop in strip rendering. Same happens when you use multicam strip and set source channel to one of its effects. This is fixed by passing `SeqRenderState` to the effects. If any strip renders "seqbase" pointer of strip is stored in set in the render state struct. If the pointer exists in this set, function returns without rendering anything. In other words, The strip must never render itself. Pull Request: https://projects.blender.org/blender/blender/pulls/146624
64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
/* SPDX-FileCopyrightText: 2024 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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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 "BLI_math_vector_types.hh"
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#include "BLI_set.hh"
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#include "BLI_vector.hh"
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struct ImBuf;
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struct LinkNode;
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struct ListBase;
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struct Mask;
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struct Scene;
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struct RenderData;
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struct Strip;
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namespace blender::seq {
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/* Mutable state while rendering one sequencer frame. */
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struct SeqRenderState {
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LinkNode *scene_parents = nullptr;
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Set<Strip *> strips_rendering_seqbase;
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};
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/* Strip corner coordinates in screen pixel space. Note that they might not be
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* axis aligned when rotation is present. */
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struct StripScreenQuad {
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float2 v0, v1, v2, v3;
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bool is_empty() const
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{
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return v0 == v1 && v2 == v3 && v0 == v2;
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}
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};
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ImBuf *seq_render_give_ibuf_seqbase(const RenderData *context,
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SeqRenderState *state,
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float timeline_frame,
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int chan_shown,
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ListBase *channels,
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ListBase *seqbasep);
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void seq_imbuf_to_sequencer_space(const Scene *scene, ImBuf *ibuf, bool make_float);
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blender::Vector<Strip *> seq_shown_strips_get(
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const Scene *scene, ListBase *channels, ListBase *seqbase, int timeline_frame, int chanshown);
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ImBuf *seq_render_strip(const RenderData *context,
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SeqRenderState *state,
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Strip *strip,
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float timeline_frame);
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/* Renders Mask into an image suitable for sequencer:
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* RGB channels contain mask intensity; alpha channel is opaque. */
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ImBuf *seq_render_mask(const RenderData *context, Mask *mask, float frame_index, bool make_float);
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void seq_imbuf_assign_spaces(const Scene *scene, ImBuf *ibuf);
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StripScreenQuad get_strip_screen_quad(const RenderData *context, const Strip *strip);
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} // namespace blender::seq
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