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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2005 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup bke
*/
#include "atomic_ops.h"
#include "MEM_guardedalloc.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_object_types.h"
#include "BLI_math_geom.h"
#include "BLI_task.h"
#include "BLI_threads.h"
#include "BKE_bvhutils.h"
#include "BKE_lib_id.h"
#include "BKE_mesh.h"
#include "BKE_mesh_runtime.h"
#include "BKE_shrinkwrap.h"
#include "BKE_subdiv_ccg.h"
/* -------------------------------------------------------------------- */
/** \name Mesh Runtime Struct Utils
* \{ */
/**
* Default values defined at read time.
*/
void BKE_mesh_runtime_reset(Mesh *mesh)
{
memset(&mesh->runtime, 0, sizeof(mesh->runtime));
mesh->runtime.eval_mutex = MEM_mallocN(sizeof(ThreadMutex), "mesh runtime eval_mutex");
BLI_mutex_init(mesh->runtime.eval_mutex);
}
/* Clear all pointers which we don't want to be shared on copying the datablock.
* However, keep all the flags which defines what the mesh is (for example, that
* it's deformed only, or that its custom data layers are out of date.) */
void BKE_mesh_runtime_reset_on_copy(Mesh *mesh, const int UNUSED(flag))
{
Mesh_Runtime *runtime = &mesh->runtime;
runtime->mesh_eval = NULL;
runtime->edit_data = NULL;
runtime->batch_cache = NULL;
runtime->subdiv_ccg = NULL;
memset(&runtime->looptris, 0, sizeof(runtime->looptris));
runtime->bvh_cache = NULL;
runtime->shrinkwrap_data = NULL;
mesh->runtime.eval_mutex = MEM_mallocN(sizeof(ThreadMutex), "mesh runtime eval_mutex");
BLI_mutex_init(mesh->runtime.eval_mutex);
}
void BKE_mesh_runtime_clear_cache(Mesh *mesh)
{
if (mesh->runtime.eval_mutex != NULL) {
BLI_mutex_end(mesh->runtime.eval_mutex);
MEM_freeN(mesh->runtime.eval_mutex);
mesh->runtime.eval_mutex = NULL;
}
if (mesh->runtime.mesh_eval != NULL) {
mesh->runtime.mesh_eval->edit_mesh = NULL;
BKE_id_free(NULL, mesh->runtime.mesh_eval);
mesh->runtime.mesh_eval = NULL;
}
BKE_mesh_runtime_clear_geometry(mesh);
BKE_mesh_batch_cache_free(mesh);
BKE_mesh_runtime_clear_edit_data(mesh);
}
/* This is a ported copy of DM_ensure_looptri_data(dm) */
/**
* Ensure the array is large enough
*
* \note This function must always be thread-protected by caller.
* It should only be used by internal code.
*/
static void mesh_ensure_looptri_data(Mesh *mesh)
{
const uint totpoly = mesh->totpoly;
const int looptris_len = poly_to_tri_count(totpoly, mesh->totloop);
BLI_assert(mesh->runtime.looptris.array_wip == NULL);
SWAP(MLoopTri *, mesh->runtime.looptris.array, mesh->runtime.looptris.array_wip);
if ((looptris_len > mesh->runtime.looptris.len_alloc) ||
(looptris_len < mesh->runtime.looptris.len_alloc * 2) || (totpoly == 0)) {
MEM_SAFE_FREE(mesh->runtime.looptris.array_wip);
mesh->runtime.looptris.len_alloc = 0;
mesh->runtime.looptris.len = 0;
}
if (totpoly) {
if (mesh->runtime.looptris.array_wip == NULL) {
mesh->runtime.looptris.array_wip = MEM_malloc_arrayN(
looptris_len, sizeof(*mesh->runtime.looptris.array_wip), __func__);
mesh->runtime.looptris.len_alloc = looptris_len;
}
mesh->runtime.looptris.len = looptris_len;
}
}
/* This is a ported copy of CDDM_recalc_looptri(dm). */
void BKE_mesh_runtime_looptri_recalc(Mesh *mesh)
{
mesh_ensure_looptri_data(mesh);
BLI_assert(mesh->totpoly == 0 || mesh->runtime.looptris.array_wip != NULL);
BKE_mesh_recalc_looptri(mesh->mloop,
mesh->mpoly,
mesh->mvert,
mesh->totloop,
mesh->totpoly,
mesh->runtime.looptris.array_wip);
BLI_assert(mesh->runtime.looptris.array == NULL);
atomic_cas_ptr((void **)&mesh->runtime.looptris.array,
mesh->runtime.looptris.array,
mesh->runtime.looptris.array_wip);
mesh->runtime.looptris.array_wip = NULL;
}
/* This is a ported copy of dm_getNumLoopTri(dm). */
int BKE_mesh_runtime_looptri_len(const Mesh *mesh)
{
const int looptri_len = poly_to_tri_count(mesh->totpoly, mesh->totloop);
BLI_assert(ELEM(mesh->runtime.looptris.len, 0, looptri_len));
return looptri_len;
}
static void mesh_runtime_looptri_recalc_isolated(void *userdata)
{
Mesh *mesh = userdata;
BKE_mesh_runtime_looptri_recalc(mesh);
}
/**
* \note This function only fills a cache, and therefore the mesh argument can
* be considered logically const. Concurrent access is protected by a mutex.
* \note This is a ported copy of dm_getLoopTriArray(dm).
*/
const MLoopTri *BKE_mesh_runtime_looptri_ensure(const Mesh *mesh)
{
ThreadMutex *mesh_eval_mutex = (ThreadMutex *)mesh->runtime.eval_mutex;
BLI_mutex_lock(mesh_eval_mutex);
MLoopTri *looptri = mesh->runtime.looptris.array;
if (looptri != NULL) {
BLI_assert(BKE_mesh_runtime_looptri_len(mesh) == mesh->runtime.looptris.len);
}
else {
/* Must isolate multithreaded tasks while holding a mutex lock. */
BLI_task_isolate(mesh_runtime_looptri_recalc_isolated, mesh);
looptri = mesh->runtime.looptris.array;
}
BLI_mutex_unlock(mesh_eval_mutex);
return looptri;
}
/* This is a copy of DM_verttri_from_looptri(). */
void BKE_mesh_runtime_verttri_from_looptri(MVertTri *r_verttri,
const MLoop *mloop,
const MLoopTri *looptri,
int looptri_num)
{
for (int i = 0; i < looptri_num; i++) {
r_verttri[i].tri[0] = mloop[looptri[i].tri[0]].v;
r_verttri[i].tri[1] = mloop[looptri[i].tri[1]].v;
r_verttri[i].tri[2] = mloop[looptri[i].tri[2]].v;
}
}
bool BKE_mesh_runtime_ensure_edit_data(struct Mesh *mesh)
{
if (mesh->runtime.edit_data != NULL) {
return false;
}
mesh->runtime.edit_data = MEM_callocN(sizeof(EditMeshData), "EditMeshData");
return true;
}
bool BKE_mesh_runtime_reset_edit_data(Mesh *mesh)
{
EditMeshData *edit_data = mesh->runtime.edit_data;
if (edit_data == NULL) {
return false;
}
MEM_SAFE_FREE(edit_data->polyCos);
MEM_SAFE_FREE(edit_data->polyNos);
MEM_SAFE_FREE(edit_data->vertexCos);
MEM_SAFE_FREE(edit_data->vertexNos);
return true;
}
bool BKE_mesh_runtime_clear_edit_data(Mesh *mesh)
{
if (mesh->runtime.edit_data == NULL) {
return false;
}
BKE_mesh_runtime_reset_edit_data(mesh);
MEM_freeN(mesh->runtime.edit_data);
mesh->runtime.edit_data = NULL;
return true;
}
void BKE_mesh_runtime_clear_geometry(Mesh *mesh)
{
if (mesh->runtime.bvh_cache) {
bvhcache_free(mesh->runtime.bvh_cache);
mesh->runtime.bvh_cache = NULL;
}
MEM_SAFE_FREE(mesh->runtime.looptris.array);
/* TODO(sergey): Does this really belong here? */
if (mesh->runtime.subdiv_ccg != NULL) {
BKE_subdiv_ccg_destroy(mesh->runtime.subdiv_ccg);
mesh->runtime.subdiv_ccg = NULL;
}
BKE_shrinkwrap_discard_boundary_data(mesh);
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Mesh Batch Cache Callbacks
* \{ */
/* Draw Engine */
void (*BKE_mesh_batch_cache_dirty_tag_cb)(Mesh *me, eMeshBatchDirtyMode mode) = NULL;
void (*BKE_mesh_batch_cache_free_cb)(Mesh *me) = NULL;
void BKE_mesh_batch_cache_dirty_tag(Mesh *me, eMeshBatchDirtyMode mode)
{
if (me->runtime.batch_cache) {
BKE_mesh_batch_cache_dirty_tag_cb(me, mode);
}
}
void BKE_mesh_batch_cache_free(Mesh *me)
{
if (me->runtime.batch_cache) {
BKE_mesh_batch_cache_free_cb(me);
}
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Mesh runtime debug helpers.
* \{ */
/* evaluated mesh info printing function,
* to help track down differences output */
#ifndef NDEBUG
# include "BLI_dynstr.h"
static void mesh_runtime_debug_info_layers(DynStr *dynstr, CustomData *cd)
{
int type;
for (type = 0; type < CD_NUMTYPES; type++) {
if (CustomData_has_layer(cd, type)) {
/* note: doesn't account for multiple layers */
const char *name = CustomData_layertype_name(type);
const int size = CustomData_sizeof(type);
const void *pt = CustomData_get_layer(cd, type);
const int pt_size = pt ? (int)(MEM_allocN_len(pt) / size) : 0;
const char *structname;
int structnum;
CustomData_file_write_info(type, &structname, &structnum);
BLI_dynstr_appendf(
dynstr,
" dict(name='%s', struct='%s', type=%d, ptr='%p', elem=%d, length=%d),\n",
name,
structname,
type,
(const void *)pt,
size,
pt_size);
}
}
}
char *BKE_mesh_runtime_debug_info(Mesh *me_eval)
{
DynStr *dynstr = BLI_dynstr_new();
char *ret;
BLI_dynstr_append(dynstr, "{\n");
BLI_dynstr_appendf(dynstr, " 'ptr': '%p',\n", (void *)me_eval);
# if 0
const char *tstr;
switch (me_eval->type) {
case DM_TYPE_CDDM:
tstr = "DM_TYPE_CDDM";
break;
case DM_TYPE_CCGDM:
tstr = "DM_TYPE_CCGDM";
break;
default:
tstr = "UNKNOWN";
break;
}
BLI_dynstr_appendf(dynstr, " 'type': '%s',\n", tstr);
# endif
BLI_dynstr_appendf(dynstr, " 'totvert': %d,\n", me_eval->totvert);
BLI_dynstr_appendf(dynstr, " 'totedge': %d,\n", me_eval->totedge);
BLI_dynstr_appendf(dynstr, " 'totface': %d,\n", me_eval->totface);
BLI_dynstr_appendf(dynstr, " 'totpoly': %d,\n", me_eval->totpoly);
BLI_dynstr_appendf(dynstr, " 'deformed_only': %d,\n", me_eval->runtime.deformed_only);
BLI_dynstr_append(dynstr, " 'vertexLayers': (\n");
mesh_runtime_debug_info_layers(dynstr, &me_eval->vdata);
BLI_dynstr_append(dynstr, " ),\n");
BLI_dynstr_append(dynstr, " 'edgeLayers': (\n");
mesh_runtime_debug_info_layers(dynstr, &me_eval->edata);
BLI_dynstr_append(dynstr, " ),\n");
BLI_dynstr_append(dynstr, " 'loopLayers': (\n");
mesh_runtime_debug_info_layers(dynstr, &me_eval->ldata);
BLI_dynstr_append(dynstr, " ),\n");
BLI_dynstr_append(dynstr, " 'polyLayers': (\n");
mesh_runtime_debug_info_layers(dynstr, &me_eval->pdata);
BLI_dynstr_append(dynstr, " ),\n");
BLI_dynstr_append(dynstr, " 'tessFaceLayers': (\n");
mesh_runtime_debug_info_layers(dynstr, &me_eval->fdata);
BLI_dynstr_append(dynstr, " ),\n");
BLI_dynstr_append(dynstr, "}\n");
ret = BLI_dynstr_get_cstring(dynstr);
BLI_dynstr_free(dynstr);
return ret;
}
void BKE_mesh_runtime_debug_print(Mesh *me_eval)
{
char *str = BKE_mesh_runtime_debug_info(me_eval);
puts(str);
fflush(stdout);
MEM_freeN(str);
}
/* XXX Should go in customdata file? */
void BKE_mesh_runtime_debug_print_cdlayers(CustomData *data)
{
int i;
const CustomDataLayer *layer;
printf("{\n");
for (i = 0, layer = data->layers; i < data->totlayer; i++, layer++) {
const char *name = CustomData_layertype_name(layer->type);
const int size = CustomData_sizeof(layer->type);
const char *structname;
int structnum;
CustomData_file_write_info(layer->type, &structname, &structnum);
printf(" dict(name='%s', struct='%s', type=%d, ptr='%p', elem=%d, length=%d),\n",
name,
structname,
layer->type,
(const void *)layer->data,
size,
(int)(MEM_allocN_len(layer->data) / size));
}
printf("}\n");
}
bool BKE_mesh_runtime_is_valid(Mesh *me_eval)
{
const bool do_verbose = true;
const bool do_fixes = false;
bool is_valid = true;
bool changed = true;
if (do_verbose) {
printf("MESH: %s\n", me_eval->id.name + 2);
}
is_valid &= BKE_mesh_validate_all_customdata(
&me_eval->vdata,
me_eval->totvert,
&me_eval->edata,
me_eval->totedge,
&me_eval->ldata,
me_eval->totloop,
&me_eval->pdata,
me_eval->totpoly,
false, /* setting mask here isn't useful, gives false positives */
do_verbose,
do_fixes,
&changed);
is_valid &= BKE_mesh_validate_arrays(me_eval,
me_eval->mvert,
me_eval->totvert,
me_eval->medge,
me_eval->totedge,
me_eval->mface,
me_eval->totface,
me_eval->mloop,
me_eval->totloop,
me_eval->mpoly,
me_eval->totpoly,
me_eval->dvert,
do_verbose,
do_fixes,
&changed);
BLI_assert(changed == false);
return is_valid;
}
#endif /* NDEBUG */
/** \} */
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