BKE_subdiv_modifier.hh

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/* SPDX-FileCopyrightText: 2021 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

 
#pragma once
 
#include "BKE_mesh_types.hh"
#include "BKE_subdiv.hh"
 
#include "DNA_mesh_types.h"

#define MAX_GPU_SUBDIV_SSBOS 12
 
struct Mesh;
struct Object;
struct Scene;
struct SubsurfModifierData;
 
namespace blender::bke::subdiv {
struct Subdiv;
struct Settings;
}  // namespace blender::bke::subdiv

struct SubsurfRuntimeData {
  blender::bke::subdiv::Settings settings;

  blender::bke::subdiv::Subdiv *subdiv_cpu;
  blender::bke::subdiv::Subdiv *subdiv_gpu;

  char used_cpu, used_gpu;

  bool has_gpu_subdiv;
  int resolution;
  bool use_optimal_display;
  bool use_loop_normals;

  int stats_totvert;
  int stats_totedge;
  int stats_faces_num;
  int stats_totloop;
};
 
blender::bke::subdiv::Settings BKE_subsurf_modifier_settings_init(const SubsurfModifierData *smd,
                                                                  bool use_render_params);
 
bool BKE_subsurf_modifier_runtime_init(SubsurfModifierData *smd, bool use_render_params);
 
bool BKE_subsurf_modifier_use_custom_loop_normals(const SubsurfModifierData *smd,
                                                  const Mesh *mesh);
bool BKE_subsurf_modifier_has_split_normals(const SubsurfModifierData *smd, const Mesh *mesh);

bool BKE_subsurf_modifier_force_disable_gpu_evaluation_for_mesh(const SubsurfModifierData *smd,
                                                                const Mesh *mesh);
bool BKE_subsurf_modifier_can_do_gpu_subdiv(const SubsurfModifierData *smd, const Mesh *mesh);
 
inline bool BKE_subsurf_modifier_has_gpu_subdiv(const Mesh *mesh)
{
  SubsurfRuntimeData *runtime_data = mesh->runtime->subsurf_runtime_data;
  return runtime_data && runtime_data->has_gpu_subdiv;
}
 
extern void (*BKE_subsurf_modifier_free_gpu_cache_cb)(blender::bke::subdiv::Subdiv *subdiv);

blender::bke::subdiv::Subdiv *BKE_subsurf_modifier_subdiv_descriptor_ensure(
    SubsurfRuntimeData *runtime_data, const Mesh *mesh, bool for_draw_code);

int BKE_subsurf_modifier_eval_required_mode(bool is_final_render, bool is_edit_mode);