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test2/source/blender/blenkernel/BKE_subdiv_modifier.h
Sergey Sharybin c1bc70b711 Cleanup: Add a copyright notice to files and use SPDX format
A lot of files were missing copyright field in the header and
the Blender Foundation contributed to them in a sense of bug
fixing and general maintenance.

This change makes it explicit that those files are at least
partially copyrighted by the Blender Foundation.

Note that this does not make it so the Blender Foundation is
the only holder of the copyright in those files, and developers
who do not have a signed contract with the foundation still
hold the copyright as well.

Another aspect of this change is using SPDX format for the
header. We already used it for the license specification,
and now we state it for the copyright as well, following the
FAQ:

    https://reuse.software/faq/
2023-05-31 16:19:06 +02:00

103 lines
3.4 KiB
C

/* SPDX-FileCopyrightText: 2021 Blender Foundation
*
* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup bke
*/
#pragma once
#include "BKE_subdiv.h"
#include "BLI_sys_types.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Hardcoded for until GPU shaders are automatically generated, then we will have a more
* programmatic way of detecting this. */
#define MAX_GPU_SUBDIV_SSBOS 12
struct Mesh;
struct Object;
struct Scene;
struct Subdiv;
struct SubdivSettings;
struct SubsurfModifierData;
/* Runtime subsurf modifier data, cached in modifier on evaluated meshes. */
typedef struct SubsurfRuntimeData {
/* Subdivision settings, exists before descriptor or mesh wrapper is created. */
SubdivSettings settings;
/* Cached subdivision surface descriptor, with topology and settings. */
struct Subdiv *subdiv_cpu;
struct Subdiv *subdiv_gpu;
/* Recent usage markers for UI diagnostics. To avoid UI flicker due to races
* between evaluation and UI redraw, they are set to 2 when an evaluator is used,
* and count down every frame. */
char used_cpu, used_gpu;
/* Cached mesh wrapper data, to be used for GPU subdiv or lazy evaluation on CPU. */
bool has_gpu_subdiv;
int resolution;
bool use_optimal_display;
bool calc_loop_normals;
bool use_loop_normals;
/* Cached from the draw code for stats display. */
int stats_totvert;
int stats_totedge;
int stats_totpoly;
int stats_totloop;
} SubsurfRuntimeData;
SubdivSettings BKE_subsurf_modifier_settings_init(const struct SubsurfModifierData *smd,
bool use_render_params);
bool BKE_subsurf_modifier_runtime_init(struct SubsurfModifierData *smd, bool use_render_params);
bool BKE_subsurf_modifier_use_custom_loop_normals(const struct SubsurfModifierData *smd,
const struct Mesh *mesh);
/**
* Return true if GPU subdivision evaluation is disabled by force due to incompatible mesh or
* modifier settings. This will only return true if GPU subdivision is enabled in the preferences
* and supported by the GPU. It is mainly useful for showing UI messages.
*/
bool BKE_subsurf_modifier_force_disable_gpu_evaluation_for_mesh(
const struct SubsurfModifierData *smd, const struct Mesh *mesh);
/**
* \param skip_check_is_last: When true, we assume that the modifier passed is the last enabled
* modifier in the stack.
*/
bool BKE_subsurf_modifier_can_do_gpu_subdiv(const struct Scene *scene,
const struct Object *ob,
const struct Mesh *mesh,
const struct SubsurfModifierData *smd,
int required_mode);
bool BKE_subsurf_modifier_has_gpu_subdiv(const struct Mesh *mesh);
extern void (*BKE_subsurf_modifier_free_gpu_cache_cb)(struct Subdiv *subdiv);
/**
* Main goal of this function is to give usable subdivision surface descriptor
* which matches settings and topology.
*/
struct Subdiv *BKE_subsurf_modifier_subdiv_descriptor_ensure(
struct SubsurfRuntimeData *runtime_data, const struct Mesh *mesh, bool for_draw_code);
/**
* Return the #ModifierMode required for the evaluation of the subsurf modifier,
* which should be used to check if the modifier is enabled.
*/
int BKE_subsurf_modifier_eval_required_mode(bool is_final_render, bool is_edit_mode);
#ifdef __cplusplus
}
#endif