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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2005 Blender Foundation. All rights reserved. */
/** \file
* \ingroup gpu
*/
#pragma once
#include <stddef.h>
#include "BKE_attribute.h"
#include "BKE_pbvh.h"
#ifdef __cplusplus
extern "C" {
#endif
struct BMesh;
struct CCGElem;
struct CCGKey;
struct DMFlagMat;
struct GSet;
struct TableGSet;
struct Mesh;
struct MLoop;
struct MLoopCol;
struct MLoopTri;
struct MPoly;
struct MPropCol;
struct MVert;
struct Mesh;
struct PBVH;
struct SubdivCCG;
struct CustomData;
typedef struct PBVHGPUFormat PBVHGPUFormat;
/**
* Buffers for drawing from PBVH grids.
*/
typedef struct GPU_PBVH_Buffers GPU_PBVH_Buffers;
/**
* Build must be called once before using the other functions,
* used every time mesh topology changes.
*
* Threaded: do not call any functions that use OpenGL calls!
*/
GPU_PBVH_Buffers *GPU_pbvh_mesh_buffers_build(const struct Mesh *mesh,
const struct MLoopTri *looptri,
const int *face_indices,
int face_indices_len);
/**
* Threaded: do not call any functions that use OpenGL calls!
*/
GPU_PBVH_Buffers *GPU_pbvh_grid_buffers_build(int totgrid,
unsigned int **grid_hidden,
bool smooth);
/**
* Threaded: do not call any functions that use OpenGL calls!
*/
GPU_PBVH_Buffers *GPU_pbvh_bmesh_buffers_build(bool smooth_shading);
/**
* Free part of data for update. Not thread safe, must run in OpenGL main thread.
*/
void GPU_pbvh_bmesh_buffers_update_free(GPU_PBVH_Buffers *buffers);
void GPU_pbvh_grid_buffers_update_free(GPU_PBVH_Buffers *buffers,
const struct DMFlagMat *grid_flag_mats,
const int *grid_indices);
/**
* Update mesh buffers without topology changes. Threaded.
*/
enum {
GPU_PBVH_BUFFERS_SHOW_MASK = (1 << 1),
GPU_PBVH_BUFFERS_SHOW_VCOL = (1 << 2),
GPU_PBVH_BUFFERS_SHOW_SCULPT_FACE_SETS = (1 << 3),
};
/**
* Creates a vertex buffer (coordinate, normal, color) and,
* if smooth shading, an element index buffer.
* Threaded: do not call any functions that use OpenGL calls!
*/
void GPU_pbvh_mesh_buffers_update(PBVHGPUFormat *vbo_id,
GPU_PBVH_Buffers *buffers,
const struct Mesh *mesh,
const struct MVert *mvert,
const float *vmask,
const int *sculpt_face_sets,
const int face_sets_color_seed,
const int face_sets_color_default,
const int update_flags,
const float (*vert_normals)[3]);
bool GPU_pbvh_attribute_names_update(PBVHType pbvh_type,
PBVHGPUFormat *vbo_id,
const struct CustomData *vdata,
const struct CustomData *ldata,
bool active_attrs_only);
/**
* Creates a vertex buffer (coordinate, normal, color) and,
* if smooth shading, an element index buffer.
* Threaded: do not call any functions that use OpenGL calls!
*/
void GPU_pbvh_bmesh_buffers_update(PBVHGPUFormat *vbo_id,
struct GPU_PBVH_Buffers *buffers,
struct BMesh *bm,
struct GSet *bm_faces,
struct GSet *bm_unique_verts,
struct GSet *bm_other_verts,
const int update_flags);
/**
* Threaded: do not call any functions that use OpenGL calls!
*/
void GPU_pbvh_grid_buffers_update(PBVHGPUFormat *vbo_id,
GPU_PBVH_Buffers *buffers,
struct SubdivCCG *subdiv_ccg,
struct CCGElem **grids,
const struct DMFlagMat *grid_flag_mats,
int *grid_indices,
int totgrid,
const int *sculpt_face_sets,
int face_sets_color_seed,
int face_sets_color_default,
const struct CCGKey *key,
int update_flags);
/**
* Finish update. Not thread safe, must run in OpenGL main
* thread.
*/
void GPU_pbvh_buffers_update_flush(GPU_PBVH_Buffers *buffers);
/**
* Free buffers. Not thread safe, must run in OpenGL main thread.
*/
void GPU_pbvh_buffers_free(GPU_PBVH_Buffers *buffers);
/** Draw. */
struct GPUBatch *GPU_pbvh_buffers_batch_get(GPU_PBVH_Buffers *buffers, bool fast, bool wires);
short GPU_pbvh_buffers_material_index_get(GPU_PBVH_Buffers *buffers);
bool GPU_pbvh_buffers_has_overlays(GPU_PBVH_Buffers *buffers);
PBVHGPUFormat *GPU_pbvh_make_format(void);
void GPU_pbvh_free_format(PBVHGPUFormat *vbo_id);
#ifdef __cplusplus
}
#endif
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