1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2021 Blender Foundation. All rights reserved. */
/** \file
* \ingroup draw
*/
#include "MEM_guardedalloc.h"
#include "extract_mesh.hh"
#include "draw_subdivision.h"
namespace blender::draw {
static void extract_tris_mat_task_reduce(void *_userdata_to, void *_userdata_from)
{
GPUIndexBufBuilder *elb_to = static_cast<GPUIndexBufBuilder *>(_userdata_to);
GPUIndexBufBuilder *elb_from = static_cast<GPUIndexBufBuilder *>(_userdata_from);
GPU_indexbuf_join(elb_to, elb_from);
}
/* ---------------------------------------------------------------------- */
/** \name Extract Triangles Indices (multi material)
* \{ */
static void extract_tris_init(const MeshRenderData *mr,
MeshBatchCache *UNUSED(cache),
void *UNUSED(ibo),
void *tls_data)
{
GPUIndexBufBuilder *elb = static_cast<GPUIndexBufBuilder *>(tls_data);
GPU_indexbuf_init(elb, GPU_PRIM_TRIS, mr->poly_sorted.visible_tri_len, mr->loop_len);
}
static void extract_tris_iter_poly_bm(const MeshRenderData *mr,
const BMFace *f,
const int f_index,
void *_data)
{
int tri_first_index = mr->poly_sorted.tri_first_index[f_index];
if (tri_first_index == -1) {
return;
}
GPUIndexBufBuilder *elb = static_cast<GPUIndexBufBuilder *>(_data);
int tri_first_index_real = poly_to_tri_count(f_index, BM_elem_index_get(f->l_first));
struct BMLoop *(*looptris)[3] = mr->edit_bmesh->looptris;
int tri_len = f->len - 2;
for (int offs = 0; offs < tri_len; offs++) {
BMLoop **elt = looptris[tri_first_index_real + offs];
int tri_index = tri_first_index + offs;
GPU_indexbuf_set_tri_verts(elb,
tri_index,
BM_elem_index_get(elt[0]),
BM_elem_index_get(elt[1]),
BM_elem_index_get(elt[2]));
}
}
static void extract_tris_iter_poly_mesh(const MeshRenderData *mr,
const MPoly *mp,
const int mp_index,
void *_data)
{
int tri_first_index = mr->poly_sorted.tri_first_index[mp_index];
if (tri_first_index == -1) {
return;
}
GPUIndexBufBuilder *elb = static_cast<GPUIndexBufBuilder *>(_data);
int tri_first_index_real = poly_to_tri_count(mp_index, mp->loopstart);
int tri_len = mp->totloop - 2;
for (int offs = 0; offs < tri_len; offs++) {
const MLoopTri *mlt = &mr->mlooptri[tri_first_index_real + offs];
int tri_index = tri_first_index + offs;
GPU_indexbuf_set_tri_verts(elb, tri_index, mlt->tri[0], mlt->tri[1], mlt->tri[2]);
}
}
static void extract_tris_finish(const MeshRenderData *mr,
MeshBatchCache *cache,
void *buf,
void *_data)
{
GPUIndexBuf *ibo = static_cast<GPUIndexBuf *>(buf);
GPUIndexBufBuilder *elb = static_cast<GPUIndexBufBuilder *>(_data);
GPU_indexbuf_build_in_place(elb, ibo);
/* Create ibo sub-ranges. Always do this to avoid error when the standard surface batch
* is created before the surfaces-per-material. */
if (mr->use_final_mesh && cache->tris_per_mat) {
int mat_start = 0;
for (int i = 0; i < mr->mat_len; i++) {
/* These IBOs have not been queried yet but we create them just in case they are needed
* later since they are not tracked by mesh_buffer_cache_create_requested(). */
if (cache->tris_per_mat[i] == nullptr) {
cache->tris_per_mat[i] = GPU_indexbuf_calloc();
}
const int mat_tri_len = mr->poly_sorted.mat_tri_len[i];
/* Multiply by 3 because these are triangle indices. */
const int start = mat_start * 3;
const int len = mat_tri_len * 3;
GPU_indexbuf_create_subrange_in_place(cache->tris_per_mat[i], ibo, start, len);
mat_start += mat_tri_len;
}
}
}
static void extract_tris_init_subdiv(const DRWSubdivCache *subdiv_cache,
const MeshRenderData *UNUSED(mr),
MeshBatchCache *cache,
void *buffer,
void *UNUSED(data))
{
GPUIndexBuf *ibo = static_cast<GPUIndexBuf *>(buffer);
/* Initialize the index buffer, it was already allocated, it will be filled on the device. */
GPU_indexbuf_init_build_on_device(ibo, subdiv_cache->num_subdiv_triangles * 3);
if (cache->tris_per_mat) {
for (int i = 0; i < cache->mat_len; i++) {
if (cache->tris_per_mat[i] == nullptr) {
cache->tris_per_mat[i] = GPU_indexbuf_calloc();
}
/* Multiply by 6 since we have 2 triangles per quad. */
const int start = subdiv_cache->mat_start[i] * 6;
const int len = (subdiv_cache->mat_end[i] - subdiv_cache->mat_start[i]) * 6;
GPU_indexbuf_create_subrange_in_place(cache->tris_per_mat[i], ibo, start, len);
}
}
draw_subdiv_build_tris_buffer(subdiv_cache, ibo, cache->mat_len);
}
constexpr MeshExtract create_extractor_tris()
{
MeshExtract extractor = {nullptr};
extractor.init = extract_tris_init;
extractor.init_subdiv = extract_tris_init_subdiv;
extractor.iter_poly_bm = extract_tris_iter_poly_bm;
extractor.iter_poly_mesh = extract_tris_iter_poly_mesh;
extractor.task_reduce = extract_tris_mat_task_reduce;
extractor.finish = extract_tris_finish;
extractor.data_type = MR_DATA_LOOPTRI | MR_DATA_POLYS_SORTED;
extractor.data_size = sizeof(GPUIndexBufBuilder);
extractor.use_threading = true;
extractor.mesh_buffer_offset = offsetof(MeshBufferList, ibo.tris);
return extractor;
}
/** \} */
/** \name Extract Triangles Indices (single material)
* \{ */
static void extract_tris_single_mat_init(const MeshRenderData *mr,
MeshBatchCache *UNUSED(cache),
void *UNUSED(ibo),
void *tls_data)
{
GPUIndexBufBuilder *elb = static_cast<GPUIndexBufBuilder *>(tls_data);
GPU_indexbuf_init(elb, GPU_PRIM_TRIS, mr->tri_len, mr->loop_len);
}
static void extract_tris_single_mat_iter_looptri_bm(const MeshRenderData *UNUSED(mr),
BMLoop **elt,
const int elt_index,
void *_data)
{
GPUIndexBufBuilder *elb = static_cast<GPUIndexBufBuilder *>(_data);
if (!BM_elem_flag_test(elt[0]->f, BM_ELEM_HIDDEN)) {
GPU_indexbuf_set_tri_verts(elb,
elt_index,
BM_elem_index_get(elt[0]),
BM_elem_index_get(elt[1]),
BM_elem_index_get(elt[2]));
}
else {
GPU_indexbuf_set_tri_restart(elb, elt_index);
}
}
static void extract_tris_single_mat_iter_looptri_mesh(const MeshRenderData *mr,
const MLoopTri *mlt,
const int mlt_index,
void *_data)
{
GPUIndexBufBuilder *elb = static_cast<GPUIndexBufBuilder *>(_data);
const bool hidden = mr->use_hide && mr->hide_poly && mr->hide_poly[mlt->poly];
if (hidden) {
GPU_indexbuf_set_tri_restart(elb, mlt_index);
}
else {
GPU_indexbuf_set_tri_verts(elb, mlt_index, mlt->tri[0], mlt->tri[1], mlt->tri[2]);
}
}
static void extract_tris_single_mat_finish(const MeshRenderData *mr,
MeshBatchCache *cache,
void *buf,
void *_data)
{
GPUIndexBuf *ibo = static_cast<GPUIndexBuf *>(buf);
GPUIndexBufBuilder *elb = static_cast<GPUIndexBufBuilder *>(_data);
GPU_indexbuf_build_in_place(elb, ibo);
/* Create ibo sub-ranges. Always do this to avoid error when the standard surface batch
* is created before the surfaces-per-material. */
if (mr->use_final_mesh && cache->tris_per_mat) {
for (int i = 0; i < mr->mat_len; i++) {
/* These IBOs have not been queried yet but we create them just in case they are needed
* later since they are not tracked by mesh_buffer_cache_create_requested(). */
if (cache->tris_per_mat[i] == nullptr) {
cache->tris_per_mat[i] = GPU_indexbuf_calloc();
}
/* Multiply by 3 because these are triangle indices. */
const int len = mr->tri_len * 3;
GPU_indexbuf_create_subrange_in_place(cache->tris_per_mat[i], ibo, 0, len);
}
}
}
constexpr MeshExtract create_extractor_tris_single_mat()
{
MeshExtract extractor = {nullptr};
extractor.init = extract_tris_single_mat_init;
extractor.init_subdiv = extract_tris_init_subdiv;
extractor.iter_looptri_bm = extract_tris_single_mat_iter_looptri_bm;
extractor.iter_looptri_mesh = extract_tris_single_mat_iter_looptri_mesh;
extractor.task_reduce = extract_tris_mat_task_reduce;
extractor.finish = extract_tris_single_mat_finish;
extractor.data_type = MR_DATA_NONE;
extractor.data_size = sizeof(GPUIndexBufBuilder);
extractor.use_threading = true;
extractor.mesh_buffer_offset = offsetof(MeshBufferList, ibo.tris);
return extractor;
}
/** \} */
} // namespace blender::draw
const MeshExtract extract_tris = blender::draw::create_extractor_tris();
const MeshExtract extract_tris_single_mat = blender::draw::create_extractor_tris_single_mat();
|
