test2/source/blender/sequencer/intern/render.hh

/* SPDX-FileCopyrightText: 2024 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

#pragma once

/** \file
 * \ingroup sequencer
 */

#include "BLI_math_vector_types.hh"
#include "BLI_vector.hh"

struct ImBuf;
struct LinkNode;
struct ListBase;
struct Scene;
struct SeqEffectHandle;
struct SeqRenderData;
struct Sequence;

/* mutable state for sequencer */
struct SeqRenderState {
  LinkNode *scene_parents = nullptr;
};

/* Strip corner coordinates in screen pixel space. Note that they might not be
 * axis aligned when rotation is present. */
struct StripScreenQuad {
  blender::float2 v0, v1, v2, v3;

  bool is_empty() const
  {
    return v0 == v1 && v2 == v3 && v0 == v2;
  }
};

ImBuf *seq_render_give_ibuf_seqbase(const SeqRenderData *context,
                                    float timeline_frame,
                                    int chan_shown,
                                    ListBase *channels,
                                    ListBase *seqbasep);
ImBuf *seq_render_effect_execute_threaded(SeqEffectHandle *sh,
                                          const SeqRenderData *context,
                                          Sequence *seq,
                                          float timeline_frame,
                                          float fac,
                                          ImBuf *ibuf1,
                                          ImBuf *ibuf2);
void seq_imbuf_to_sequencer_space(const Scene *scene, ImBuf *ibuf, bool make_float);
blender::Vector<Sequence *> seq_get_shown_sequences(
    const Scene *scene, ListBase *channels, ListBase *seqbase, int timeline_frame, int chanshown);
ImBuf *seq_render_strip(const SeqRenderData *context,
                        SeqRenderState *state,
                        Sequence *seq,
                        float timeline_frame);
ImBuf *seq_render_mask(const SeqRenderData *context,
                       Mask *mask,
                       float frame_index,
                       bool make_float);
void seq_imbuf_assign_spaces(const Scene *scene, ImBuf *ibuf);

StripScreenQuad get_strip_screen_quad(const SeqRenderData *context, const Sequence *seq);