335 lines
12 KiB
C++
335 lines
12 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2021 by Blender Foundation.
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* All rights reserved.
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*/
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/** \file
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* \ingroup draw
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*
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* \brief Extraction of Mesh data into VBO to feed to GPU.
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*/
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#pragma once
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#include "DNA_mesh_types.h"
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#include "DNA_meshdata_types.h"
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#include "DNA_object_types.h"
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#include "DNA_scene_types.h"
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#include "BKE_customdata.h"
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#include "BKE_editmesh.h"
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#include "draw_cache_extract.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define MIN_RANGE_LEN 1024
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/* ---------------------------------------------------------------------- */
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/** \name Mesh Render Data
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* \{ */
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typedef enum eMRExtractType {
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MR_EXTRACT_BMESH,
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MR_EXTRACT_MAPPED,
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MR_EXTRACT_MESH,
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} eMRExtractType;
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typedef struct MeshRenderData {
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eMRExtractType extract_type;
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int poly_len, edge_len, vert_len, loop_len;
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int edge_loose_len;
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int vert_loose_len;
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int loop_loose_len;
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int tri_len;
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int mat_len;
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bool use_hide;
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bool use_subsurf_fdots;
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bool use_final_mesh;
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/** Use for #MeshStatVis calculation which use world-space coords. */
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float obmat[4][4];
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const ToolSettings *toolsettings;
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/** Edit Mesh */
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BMEditMesh *edit_bmesh;
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BMesh *bm;
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EditMeshData *edit_data;
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/* For deformed edit-mesh data. */
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/* Use for #ME_WRAPPER_TYPE_BMESH. */
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const float (*bm_vert_coords)[3];
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const float (*bm_vert_normals)[3];
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const float (*bm_poly_normals)[3];
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const float (*bm_poly_centers)[3];
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int *v_origindex, *e_origindex, *p_origindex;
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int crease_ofs;
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int bweight_ofs;
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int freestyle_edge_ofs;
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int freestyle_face_ofs;
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/** Mesh */
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Mesh *me;
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const MVert *mvert;
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const MEdge *medge;
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const MLoop *mloop;
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const MPoly *mpoly;
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BMVert *eve_act;
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BMEdge *eed_act;
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BMFace *efa_act;
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BMFace *efa_act_uv;
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/* Data created on-demand (usually not for #BMesh based data). */
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MLoopTri *mlooptri;
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float (*loop_normals)[3];
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float (*poly_normals)[3];
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int *lverts, *ledges;
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struct {
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int *tri_first_index;
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int *mat_tri_len;
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int visible_tri_len;
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} poly_sorted;
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} MeshRenderData;
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BLI_INLINE BMFace *bm_original_face_get(const MeshRenderData *mr, int idx)
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{
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return ((mr->p_origindex != NULL) && (mr->p_origindex[idx] != ORIGINDEX_NONE) && mr->bm) ?
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BM_face_at_index(mr->bm, mr->p_origindex[idx]) :
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NULL;
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}
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BLI_INLINE BMEdge *bm_original_edge_get(const MeshRenderData *mr, int idx)
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{
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return ((mr->e_origindex != NULL) && (mr->e_origindex[idx] != ORIGINDEX_NONE) && mr->bm) ?
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BM_edge_at_index(mr->bm, mr->e_origindex[idx]) :
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NULL;
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}
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BLI_INLINE BMVert *bm_original_vert_get(const MeshRenderData *mr, int idx)
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{
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return ((mr->v_origindex != NULL) && (mr->v_origindex[idx] != ORIGINDEX_NONE) && mr->bm) ?
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BM_vert_at_index(mr->bm, mr->v_origindex[idx]) :
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NULL;
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}
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BLI_INLINE const float *bm_vert_co_get(const MeshRenderData *mr, const BMVert *eve)
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{
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const float(*vert_coords)[3] = mr->bm_vert_coords;
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if (vert_coords != NULL) {
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return vert_coords[BM_elem_index_get(eve)];
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}
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UNUSED_VARS(mr);
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return eve->co;
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}
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BLI_INLINE const float *bm_vert_no_get(const MeshRenderData *mr, const BMVert *eve)
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{
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const float(*vert_normals)[3] = mr->bm_vert_normals;
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if (vert_normals != NULL) {
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return vert_normals[BM_elem_index_get(eve)];
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}
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UNUSED_VARS(mr);
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return eve->no;
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}
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BLI_INLINE const float *bm_face_no_get(const MeshRenderData *mr, const BMFace *efa)
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{
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const float(*poly_normals)[3] = mr->bm_poly_normals;
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if (poly_normals != NULL) {
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return poly_normals[BM_elem_index_get(efa)];
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}
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UNUSED_VARS(mr);
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return efa->no;
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}
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/** \} */
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/* ---------------------------------------------------------------------- */
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/** \name Mesh Elements Extract Struct
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* \{ */
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/* TODO(jbakker): move parameters inside a struct. */
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typedef void(ExtractTriBMeshFn)(const MeshRenderData *mr,
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BMLoop **elt,
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const int elt_index,
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void *data);
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typedef void(ExtractTriMeshFn)(const MeshRenderData *mr,
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const MLoopTri *mlt,
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const int elt_index,
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void *data);
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typedef void(ExtractPolyBMeshFn)(const MeshRenderData *mr,
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const BMFace *f,
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const int f_index,
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void *data);
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typedef void(ExtractPolyMeshFn)(const MeshRenderData *mr,
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const MPoly *mp,
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const int mp_index,
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void *data);
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typedef void(ExtractLEdgeBMeshFn)(const MeshRenderData *mr,
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const BMEdge *eed,
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const int ledge_index,
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void *data);
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typedef void(ExtractLEdgeMeshFn)(const MeshRenderData *mr,
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const MEdge *med,
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const int ledge_index,
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void *data);
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typedef void(ExtractLVertBMeshFn)(const MeshRenderData *mr,
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const BMVert *eve,
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const int lvert_index,
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void *data);
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typedef void(ExtractLVertMeshFn)(const MeshRenderData *mr,
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const MVert *mv,
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const int lvert_index,
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void *data);
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typedef void(ExtractInitFn)(const MeshRenderData *mr,
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struct MeshBatchCache *cache,
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void *buffer,
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void *r_data);
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typedef void(ExtractFinishFn)(const MeshRenderData *mr,
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struct MeshBatchCache *cache,
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void *buffer,
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void *data);
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typedef void(ExtractTaskReduceFn)(void *userdata, void *task_userdata);
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typedef struct MeshExtract {
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/** Executed on main thread and return user data for iteration functions. */
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ExtractInitFn *init;
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/** Executed on one (or more if use_threading) worker thread(s). */
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ExtractTriBMeshFn *iter_looptri_bm;
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ExtractTriMeshFn *iter_looptri_mesh;
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ExtractPolyBMeshFn *iter_poly_bm;
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ExtractPolyMeshFn *iter_poly_mesh;
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ExtractLEdgeBMeshFn *iter_ledge_bm;
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ExtractLEdgeMeshFn *iter_ledge_mesh;
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ExtractLVertBMeshFn *iter_lvert_bm;
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ExtractLVertMeshFn *iter_lvert_mesh;
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/** Executed on one worker thread after all elements iterations. */
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ExtractTaskReduceFn *task_reduce;
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ExtractFinishFn *finish;
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/** Used to request common data. */
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eMRDataType data_type;
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size_t data_size;
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/** Used to know if the element callbacks are thread-safe and can be parallelized. */
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bool use_threading;
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/**
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* Offset in bytes of the buffer inside a MeshBufferCache instance. Points to a vertex or index
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* buffer.
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*/
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size_t mesh_buffer_offset;
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} MeshExtract;
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/** \} */
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/* draw_cache_extract_mesh_render_data.c */
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MeshRenderData *mesh_render_data_create(Mesh *me,
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const bool is_editmode,
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const bool is_paint_mode,
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const bool is_mode_active,
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const float obmat[4][4],
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const bool do_final,
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const bool do_uvedit,
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const ToolSettings *ts);
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void mesh_render_data_free(MeshRenderData *mr);
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void mesh_render_data_update_normals(MeshRenderData *mr, const eMRDataType data_flag);
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void mesh_render_data_update_loose_geom(MeshRenderData *mr,
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MeshBufferExtractionCache *cache,
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const eMRIterType iter_type,
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const eMRDataType data_flag);
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void mesh_render_data_update_polys_sorted(MeshRenderData *mr,
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MeshBufferExtractionCache *cache,
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const eMRDataType data_flag);
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void mesh_render_data_update_looptris(MeshRenderData *mr,
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const eMRIterType iter_type,
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const eMRDataType data_flag);
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/* draw_cache_extract_mesh_extractors.c */
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typedef struct EditLoopData {
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uchar v_flag;
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uchar e_flag;
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uchar crease;
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uchar bweight;
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} EditLoopData;
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void *mesh_extract_buffer_get(const MeshExtract *extractor, MeshBufferCache *mbc);
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eMRIterType mesh_extract_iter_type(const MeshExtract *ext);
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const MeshExtract *mesh_extract_override_get(const MeshExtract *extractor,
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const bool do_hq_normals,
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const bool do_single_mat);
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void mesh_render_data_face_flag(const MeshRenderData *mr,
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const BMFace *efa,
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const int cd_ofs,
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EditLoopData *eattr);
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void mesh_render_data_loop_flag(const MeshRenderData *mr,
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BMLoop *l,
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const int cd_ofs,
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EditLoopData *eattr);
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void mesh_render_data_loop_edge_flag(const MeshRenderData *mr,
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BMLoop *l,
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const int cd_ofs,
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EditLoopData *eattr);
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extern const MeshExtract extract_tris;
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extern const MeshExtract extract_tris_single_mat;
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extern const MeshExtract extract_lines;
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extern const MeshExtract extract_lines_with_lines_loose;
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extern const MeshExtract extract_lines_loose_only;
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extern const MeshExtract extract_points;
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extern const MeshExtract extract_fdots;
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extern const MeshExtract extract_lines_paint_mask;
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extern const MeshExtract extract_lines_adjacency;
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extern const MeshExtract extract_edituv_tris;
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extern const MeshExtract extract_edituv_lines;
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extern const MeshExtract extract_edituv_points;
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extern const MeshExtract extract_edituv_fdots;
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extern const MeshExtract extract_pos_nor;
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extern const MeshExtract extract_pos_nor_hq;
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extern const MeshExtract extract_lnor_hq;
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extern const MeshExtract extract_lnor;
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extern const MeshExtract extract_uv;
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extern const MeshExtract extract_tan;
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extern const MeshExtract extract_tan_hq;
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extern const MeshExtract extract_sculpt_data;
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extern const MeshExtract extract_vcol;
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extern const MeshExtract extract_orco;
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extern const MeshExtract extract_edge_fac;
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extern const MeshExtract extract_weights;
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extern const MeshExtract extract_edit_data;
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extern const MeshExtract extract_edituv_data;
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extern const MeshExtract extract_edituv_stretch_area;
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extern const MeshExtract extract_edituv_stretch_angle;
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extern const MeshExtract extract_mesh_analysis;
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extern const MeshExtract extract_fdots_pos;
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extern const MeshExtract extract_fdots_nor;
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extern const MeshExtract extract_fdots_nor_hq;
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extern const MeshExtract extract_fdots_uv;
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extern const MeshExtract extract_fdots_edituv_data;
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extern const MeshExtract extract_skin_roots;
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extern const MeshExtract extract_poly_idx;
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extern const MeshExtract extract_edge_idx;
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extern const MeshExtract extract_vert_idx;
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extern const MeshExtract extract_fdot_idx;
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#ifdef __cplusplus
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}
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#endif
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