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tornavis/source/blender/blenkernel/intern/main.cc

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/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup bke
*
* Contains management of #Main database itself.
*/
#include <cstring>
#include "MEM_guardedalloc.h"
#include "BLI_blenlib.h"
#include "BLI_ghash.h"
#include "BLI_mempool.h"
#include "BLI_threads.h"
#include "DNA_ID.h"
#include "BKE_global.h"
#include "BKE_idtype.h"
#include "BKE_lib_id.h"
#include "BKE_lib_query.h"
#include "BKE_main.h"
#include "BKE_main_idmap.h"
#include "BKE_main_namemap.h"
#include "IMB_imbuf.h"
#include "IMB_imbuf_types.h"
Main *BKE_main_new()
{
Main *bmain = static_cast<Main *>(MEM_callocN(sizeof(Main), "new main"));
bmain->lock = static_cast<MainLock *>(MEM_mallocN(sizeof(SpinLock), "main lock"));
BLI_spin_init((SpinLock *)bmain->lock);
bmain->is_global_main = false;
return bmain;
}
void BKE_main_free(Main *mainvar)
{
/* In case this is called on a 'split-by-libraries' list of mains.
*
* Should not happen in typical usages, but can occur e.g. if a file reading is aborted. */
if (mainvar->next) {
BKE_main_free(mainvar->next);
}
/* Include this check here as the path may be manipulated after creation. */
BLI_assert_msg(!(mainvar->filepath[0] == '/' && mainvar->filepath[1] == '/'),
"'.blend' relative \"//\" must not be used in Main!");
/* also call when reading a file, erase all, etc */
ListBase *lbarray[INDEX_ID_MAX];
int a;
/* Since we are removing whole main, no need to bother 'properly'
* (and slowly) removing each ID from it. */
const int free_flag = (LIB_ID_FREE_NO_MAIN | LIB_ID_FREE_NO_UI_USER |
LIB_ID_FREE_NO_USER_REFCOUNT | LIB_ID_FREE_NO_DEG_TAG);
MEM_SAFE_FREE(mainvar->blen_thumb);
a = set_listbasepointers(mainvar, lbarray);
while (a--) {
ListBase *lb = lbarray[a];
ID *id, *id_next;
for (id = static_cast<ID *>(lb->first); id != nullptr; id = id_next) {
id_next = static_cast<ID *>(id->next);
#if 1
BKE_id_free_ex(mainvar, id, free_flag, false);
#else
/* Errors freeing ID's can be hard to track down,
* enable this so VALGRIND or ASAN will give the line number in its error log. */
# define CASE_ID_INDEX(id_index) \
case id_index: \
BKE_id_free_ex(mainvar, id, free_flag, false); \
break
switch ((eID_Index)a) {
CASE_ID_INDEX(INDEX_ID_LI);
CASE_ID_INDEX(INDEX_ID_IP);
CASE_ID_INDEX(INDEX_ID_AC);
CASE_ID_INDEX(INDEX_ID_GD_LEGACY);
CASE_ID_INDEX(INDEX_ID_NT);
CASE_ID_INDEX(INDEX_ID_VF);
CASE_ID_INDEX(INDEX_ID_TXT);
CASE_ID_INDEX(INDEX_ID_SO);
CASE_ID_INDEX(INDEX_ID_MSK);
CASE_ID_INDEX(INDEX_ID_IM);
CASE_ID_INDEX(INDEX_ID_MC);
CASE_ID_INDEX(INDEX_ID_TE);
CASE_ID_INDEX(INDEX_ID_MA);
CASE_ID_INDEX(INDEX_ID_LS);
CASE_ID_INDEX(INDEX_ID_WO);
CASE_ID_INDEX(INDEX_ID_CF);
CASE_ID_INDEX(INDEX_ID_SIM);
CASE_ID_INDEX(INDEX_ID_PA);
CASE_ID_INDEX(INDEX_ID_KE);
CASE_ID_INDEX(INDEX_ID_AR);
CASE_ID_INDEX(INDEX_ID_ME);
CASE_ID_INDEX(INDEX_ID_CU_LEGACY);
CASE_ID_INDEX(INDEX_ID_MB);
CASE_ID_INDEX(INDEX_ID_CV);
CASE_ID_INDEX(INDEX_ID_PT);
CASE_ID_INDEX(INDEX_ID_VO);
CASE_ID_INDEX(INDEX_ID_LT);
CASE_ID_INDEX(INDEX_ID_LA);
CASE_ID_INDEX(INDEX_ID_CA);
CASE_ID_INDEX(INDEX_ID_SPK);
CASE_ID_INDEX(INDEX_ID_LP);
CASE_ID_INDEX(INDEX_ID_OB);
CASE_ID_INDEX(INDEX_ID_GR);
CASE_ID_INDEX(INDEX_ID_PAL);
CASE_ID_INDEX(INDEX_ID_PC);
CASE_ID_INDEX(INDEX_ID_BR);
CASE_ID_INDEX(INDEX_ID_SCE);
CASE_ID_INDEX(INDEX_ID_SCR);
CASE_ID_INDEX(INDEX_ID_WS);
CASE_ID_INDEX(INDEX_ID_WM);
case INDEX_ID_NULL: {
BLI_assert_unreachable();
break;
}
}
# undef CASE_ID_INDEX
#endif
}
BLI_listbase_clear(lb);
}
if (mainvar->relations) {
BKE_main_relations_free(mainvar);
}
if (mainvar->id_map) {
BKE_main_idmap_destroy(mainvar->id_map);
}
/* NOTE: `name_map` in libraries are freed together with the library IDs above. */
if (mainvar->name_map) {
BKE_main_namemap_destroy(&mainvar->name_map);
}
if (mainvar->name_map_global) {
BKE_main_namemap_destroy(&mainvar->name_map_global);
}
BLI_spin_end((SpinLock *)mainvar->lock);
MEM_freeN(mainvar->lock);
MEM_freeN(mainvar);
}
bool BKE_main_is_empty(Main *bmain)
{
bool result = true;
ID *id_iter;
FOREACH_MAIN_ID_BEGIN (bmain, id_iter) {
result = false;
break;
}
FOREACH_MAIN_ID_END;
return result;
}
void BKE_main_lock(Main *bmain)
{
BLI_spin_lock((SpinLock *)bmain->lock);
}
void BKE_main_unlock(Main *bmain)
{
BLI_spin_unlock((SpinLock *)bmain->lock);
}
static int main_relations_create_idlink_cb(LibraryIDLinkCallbackData *cb_data)
{
MainIDRelations *bmain_relations = static_cast<MainIDRelations *>(cb_data->user_data);
ID *self_id = cb_data->self_id;
ID **id_pointer = cb_data->id_pointer;
const int cb_flag = cb_data->cb_flag;
if (*id_pointer) {
MainIDRelationsEntry **entry_p;
/* Add `id_pointer` as child of `self_id`. */
{
if (!BLI_ghash_ensure_p(
bmain_relations->relations_from_pointers, self_id, (void ***)&entry_p)) {
*entry_p = static_cast<MainIDRelationsEntry *>(MEM_callocN(sizeof(**entry_p), __func__));
(*entry_p)->session_uuid = self_id->session_uuid;
}
else {
BLI_assert((*entry_p)->session_uuid == self_id->session_uuid);
}
MainIDRelationsEntryItem *to_id_entry = static_cast<MainIDRelationsEntryItem *>(
BLI_mempool_alloc(bmain_relations->entry_items_pool));
to_id_entry->next = (*entry_p)->to_ids;
to_id_entry->id_pointer.to = id_pointer;
to_id_entry->session_uuid = (*id_pointer != nullptr) ? (*id_pointer)->session_uuid :
MAIN_ID_SESSION_UUID_UNSET;
to_id_entry->usage_flag = cb_flag;
(*entry_p)->to_ids = to_id_entry;
}
/* Add `self_id` as parent of `id_pointer`. */
if (*id_pointer != nullptr) {
if (!BLI_ghash_ensure_p(
bmain_relations->relations_from_pointers, *id_pointer, (void ***)&entry_p)) {
*entry_p = static_cast<MainIDRelationsEntry *>(MEM_callocN(sizeof(**entry_p), __func__));
(*entry_p)->session_uuid = (*id_pointer)->session_uuid;
}
else {
BLI_assert((*entry_p)->session_uuid == (*id_pointer)->session_uuid);
}
MainIDRelationsEntryItem *from_id_entry = static_cast<MainIDRelationsEntryItem *>(
BLI_mempool_alloc(bmain_relations->entry_items_pool));
from_id_entry->next = (*entry_p)->from_ids;
from_id_entry->id_pointer.from = self_id;
from_id_entry->session_uuid = self_id->session_uuid;
from_id_entry->usage_flag = cb_flag;
(*entry_p)->from_ids = from_id_entry;
}
}
return IDWALK_RET_NOP;
}
void BKE_main_relations_create(Main *bmain, const short flag)
{
if (bmain->relations != nullptr) {
BKE_main_relations_free(bmain);
}
bmain->relations = static_cast<MainIDRelations *>(
MEM_mallocN(sizeof(*bmain->relations), __func__));
bmain->relations->relations_from_pointers = BLI_ghash_new(
BLI_ghashutil_ptrhash, BLI_ghashutil_ptrcmp, __func__);
bmain->relations->entry_items_pool = BLI_mempool_create(
sizeof(MainIDRelationsEntryItem), 128, 128, BLI_MEMPOOL_NOP);
bmain->relations->flag = flag;
ID *id;
FOREACH_MAIN_ID_BEGIN (bmain, id) {
const int idwalk_flag = IDWALK_READONLY |
((flag & MAINIDRELATIONS_INCLUDE_UI) != 0 ? IDWALK_INCLUDE_UI : 0);
/* Ensure all IDs do have an entry, even if they are not connected to any other. */
MainIDRelationsEntry **entry_p;
if (!BLI_ghash_ensure_p(bmain->relations->relations_from_pointers, id, (void ***)&entry_p)) {
*entry_p = static_cast<MainIDRelationsEntry *>(MEM_callocN(sizeof(**entry_p), __func__));
(*entry_p)->session_uuid = id->session_uuid;
}
else {
BLI_assert((*entry_p)->session_uuid == id->session_uuid);
}
BKE_library_foreach_ID_link(
nullptr, id, main_relations_create_idlink_cb, bmain->relations, idwalk_flag);
}
FOREACH_MAIN_ID_END;
}
void BKE_main_relations_free(Main *bmain)
{
if (bmain->relations != nullptr) {
if (bmain->relations->relations_from_pointers != nullptr) {
BLI_ghash_free(bmain->relations->relations_from_pointers, nullptr, MEM_freeN);
}
BLI_mempool_destroy(bmain->relations->entry_items_pool);
MEM_freeN(bmain->relations);
bmain->relations = nullptr;
}
}
void BKE_main_relations_tag_set(Main *bmain, const eMainIDRelationsEntryTags tag, const bool value)
{
if (bmain->relations == nullptr) {
return;
}
GHashIterator *gh_iter;
for (gh_iter = BLI_ghashIterator_new(bmain->relations->relations_from_pointers);
!BLI_ghashIterator_done(gh_iter);
BLI_ghashIterator_step(gh_iter))
{
MainIDRelationsEntry *entry = static_cast<MainIDRelationsEntry *>(
BLI_ghashIterator_getValue(gh_iter));
if (value) {
entry->tags |= tag;
}
else {
entry->tags &= ~tag;
}
}
BLI_ghashIterator_free(gh_iter);
}
GSet *BKE_main_gset_create(Main *bmain, GSet *gset)
{
if (gset == nullptr) {
gset = BLI_gset_new(BLI_ghashutil_ptrhash, BLI_ghashutil_ptrcmp, __func__);
}
ID *id;
FOREACH_MAIN_ID_BEGIN (bmain, id) {
BLI_gset_add(gset, id);
}
FOREACH_MAIN_ID_END;
return gset;
}
/* Utils for ID's library weak reference API. */
struct LibWeakRefKey {
char filepath[FILE_MAX];
char id_name[MAX_ID_NAME];
};
static LibWeakRefKey *lib_weak_key_create(LibWeakRefKey *key,
const char *lib_path,
const char *id_name)
{
if (key == nullptr) {
key = static_cast<LibWeakRefKey *>(MEM_mallocN(sizeof(*key), __func__));
}
STRNCPY(key->filepath, lib_path);
STRNCPY(key->id_name, id_name);
return key;
}
static uint lib_weak_key_hash(const void *ptr)
{
const LibWeakRefKey *string_pair = static_cast<const LibWeakRefKey *>(ptr);
uint hash = BLI_ghashutil_strhash_p_murmur(string_pair->filepath);
return hash ^ BLI_ghashutil_strhash_p_murmur(string_pair->id_name);
}
static bool lib_weak_key_cmp(const void *a, const void *b)
{
const LibWeakRefKey *string_pair_a = static_cast<const LibWeakRefKey *>(a);
const LibWeakRefKey *string_pair_b = static_cast<const LibWeakRefKey *>(b);
return !(STREQ(string_pair_a->filepath, string_pair_b->filepath) &&
STREQ(string_pair_a->id_name, string_pair_b->id_name));
}
GHash *BKE_main_library_weak_reference_create(Main *bmain)
{
GHash *library_weak_reference_mapping = BLI_ghash_new(
lib_weak_key_hash, lib_weak_key_cmp, __func__);
ListBase *lb;
FOREACH_MAIN_LISTBASE_BEGIN (bmain, lb) {
ID *id_iter = static_cast<ID *>(lb->first);
if (id_iter == nullptr) {
continue;
}
if (!BKE_idtype_idcode_append_is_reusable(GS(id_iter->name))) {
continue;
}
BLI_assert(BKE_idtype_idcode_is_linkable(GS(id_iter->name)));
FOREACH_MAIN_LISTBASE_ID_BEGIN (lb, id_iter) {
if (id_iter->library_weak_reference == nullptr) {
continue;
}
LibWeakRefKey *key = lib_weak_key_create(nullptr,
id_iter->library_weak_reference->library_filepath,
id_iter->library_weak_reference->library_id_name);
BLI_ghash_insert(library_weak_reference_mapping, key, id_iter);
}
FOREACH_MAIN_LISTBASE_ID_END;
}
FOREACH_MAIN_LISTBASE_END;
return library_weak_reference_mapping;
}
void BKE_main_library_weak_reference_destroy(GHash *library_weak_reference_mapping)
{
BLI_ghash_free(library_weak_reference_mapping, MEM_freeN, nullptr);
}
ID *BKE_main_library_weak_reference_search_item(GHash *library_weak_reference_mapping,
const char *library_filepath,
const char *library_id_name)
{
LibWeakRefKey key;
lib_weak_key_create(&key, library_filepath, library_id_name);
return (ID *)BLI_ghash_lookup(library_weak_reference_mapping, &key);
}
void BKE_main_library_weak_reference_add_item(GHash *library_weak_reference_mapping,
const char *library_filepath,
const char *library_id_name,
ID *new_id)
{
BLI_assert(GS(library_id_name) == GS(new_id->name));
BLI_assert(new_id->library_weak_reference == nullptr);
BLI_assert(BKE_idtype_idcode_append_is_reusable(GS(new_id->name)));
new_id->library_weak_reference = static_cast<LibraryWeakReference *>(
MEM_mallocN(sizeof(*(new_id->library_weak_reference)), __func__));
LibWeakRefKey *key = lib_weak_key_create(nullptr, library_filepath, library_id_name);
void **id_p;
const bool already_exist_in_mapping = BLI_ghash_ensure_p(
library_weak_reference_mapping, key, &id_p);
BLI_assert(!already_exist_in_mapping);
UNUSED_VARS_NDEBUG(already_exist_in_mapping);
STRNCPY(new_id->library_weak_reference->library_filepath, library_filepath);
STRNCPY(new_id->library_weak_reference->library_id_name, library_id_name);
*id_p = new_id;
}
void BKE_main_library_weak_reference_update_item(GHash *library_weak_reference_mapping,
const char *library_filepath,
const char *library_id_name,
ID *old_id,
ID *new_id)
{
BLI_assert(GS(library_id_name) == GS(old_id->name));
BLI_assert(GS(library_id_name) == GS(new_id->name));
BLI_assert(old_id->library_weak_reference != nullptr);
BLI_assert(new_id->library_weak_reference == nullptr);
BLI_assert(STREQ(old_id->library_weak_reference->library_filepath, library_filepath));
BLI_assert(STREQ(old_id->library_weak_reference->library_id_name, library_id_name));
LibWeakRefKey key;
lib_weak_key_create(&key, library_filepath, library_id_name);
void **id_p = BLI_ghash_lookup_p(library_weak_reference_mapping, &key);
BLI_assert(id_p != nullptr && *id_p == old_id);
new_id->library_weak_reference = old_id->library_weak_reference;
old_id->library_weak_reference = nullptr;
*id_p = new_id;
}
void BKE_main_library_weak_reference_remove_item(GHash *library_weak_reference_mapping,
const char *library_filepath,
const char *library_id_name,
ID *old_id)
{
BLI_assert(GS(library_id_name) == GS(old_id->name));
BLI_assert(old_id->library_weak_reference != nullptr);
LibWeakRefKey key;
lib_weak_key_create(&key, library_filepath, library_id_name);
BLI_assert(BLI_ghash_lookup(library_weak_reference_mapping, &key) == old_id);
BLI_ghash_remove(library_weak_reference_mapping, &key, MEM_freeN, nullptr);
MEM_SAFE_FREE(old_id->library_weak_reference);
}
BlendThumbnail *BKE_main_thumbnail_from_imbuf(Main *bmain, ImBuf *img)
{
BlendThumbnail *data = nullptr;
if (bmain) {
MEM_SAFE_FREE(bmain->blen_thumb);
}
if (img) {
const size_t data_size = BLEN_THUMB_MEMSIZE(img->x, img->y);
data = static_cast<BlendThumbnail *>(MEM_mallocN(data_size, __func__));
IMB_rect_from_float(img); /* Just in case... */
data->width = img->x;
data->height = img->y;
memcpy(data->rect, img->byte_buffer.data, data_size - sizeof(*data));
}
if (bmain) {
bmain->blen_thumb = data;
}
return data;
}
ImBuf *BKE_main_thumbnail_to_imbuf(Main *bmain, BlendThumbnail *data)
{
ImBuf *img = nullptr;
if (!data && bmain) {
data = bmain->blen_thumb;
}
if (data) {
img = IMB_allocFromBuffer(
(const uint8_t *)data->rect, nullptr, uint(data->width), uint(data->height), 4);
}
return img;
}
void BKE_main_thumbnail_create(Main *bmain)
{
MEM_SAFE_FREE(bmain->blen_thumb);
bmain->blen_thumb = static_cast<BlendThumbnail *>(
MEM_callocN(BLEN_THUMB_MEMSIZE(BLEN_THUMB_SIZE, BLEN_THUMB_SIZE), __func__));
bmain->blen_thumb->width = BLEN_THUMB_SIZE;
bmain->blen_thumb->height = BLEN_THUMB_SIZE;
}
const char *BKE_main_blendfile_path(const Main *bmain)
{
return bmain->filepath;
}
const char *BKE_main_blendfile_path_from_global()
{
return BKE_main_blendfile_path(G_MAIN);
}
ListBase *which_libbase(Main *bmain, short type)
{
switch ((ID_Type)type) {
case ID_SCE:
return &(bmain->scenes);
case ID_LI:
return &(bmain->libraries);
case ID_OB:
return &(bmain->objects);
case ID_ME:
return &(bmain->meshes);
case ID_CU_LEGACY:
return &(bmain->curves);
case ID_MB:
return &(bmain->metaballs);
case ID_MA:
return &(bmain->materials);
case ID_TE:
return &(bmain->textures);
case ID_IM:
return &(bmain->images);
case ID_LT:
return &(bmain->lattices);
case ID_LA:
return &(bmain->lights);
case ID_CA:
return &(bmain->cameras);
case ID_IP:
return &(bmain->ipo);
case ID_KE:
return &(bmain->shapekeys);
case ID_WO:
return &(bmain->worlds);
case ID_SCR:
return &(bmain->screens);
case ID_VF:
return &(bmain->fonts);
case ID_TXT:
return &(bmain->texts);
case ID_SPK:
return &(bmain->speakers);
case ID_LP:
return &(bmain->lightprobes);
case ID_SO:
return &(bmain->sounds);
case ID_GR:
return &(bmain->collections);
case ID_AR:
return &(bmain->armatures);
case ID_AC:
return &(bmain->actions);
case ID_NT:
return &(bmain->nodetrees);
case ID_BR:
return &(bmain->brushes);
case ID_PA:
return &(bmain->particles);
case ID_WM:
return &(bmain->wm);
case ID_GD_LEGACY:
return &(bmain->gpencils);
case ID_GP:
return &(bmain->grease_pencils);
case ID_MC:
return &(bmain->movieclips);
case ID_MSK:
return &(bmain->masks);
case ID_LS:
return &(bmain->linestyles);
case ID_PAL:
return &(bmain->palettes);
case ID_PC:
return &(bmain->paintcurves);
case ID_CF:
return &(bmain->cachefiles);
case ID_WS:
return &(bmain->workspaces);
case ID_CV:
return &(bmain->hair_curves);
case ID_PT:
return &(bmain->pointclouds);
case ID_VO:
return &(bmain->volumes);
}
return nullptr;
}
int set_listbasepointers(Main *bmain, ListBase *lb[/*INDEX_ID_MAX*/])
{
/* Libraries may be accessed from pretty much any other ID. */
lb[INDEX_ID_LI] = &(bmain->libraries);
lb[INDEX_ID_IP] = &(bmain->ipo);
/* Moved here to avoid problems when freeing with animato (aligorith). */
lb[INDEX_ID_AC] = &(bmain->actions);
lb[INDEX_ID_KE] = &(bmain->shapekeys);
/* Referenced by gpencil, so needs to be before that to avoid crashes. */
lb[INDEX_ID_PAL] = &(bmain->palettes);
/* Referenced by nodes, objects, view, scene etc, before to free after. */
lb[INDEX_ID_GD_LEGACY] = &(bmain->gpencils);
lb[INDEX_ID_GP] = &(bmain->grease_pencils);
lb[INDEX_ID_NT] = &(bmain->nodetrees);
lb[INDEX_ID_IM] = &(bmain->images);
lb[INDEX_ID_TE] = &(bmain->textures);
lb[INDEX_ID_MA] = &(bmain->materials);
lb[INDEX_ID_VF] = &(bmain->fonts);
/* Important!: When adding a new object type,
* the specific data should be inserted here. */
lb[INDEX_ID_AR] = &(bmain->armatures);
lb[INDEX_ID_CF] = &(bmain->cachefiles);
lb[INDEX_ID_ME] = &(bmain->meshes);
lb[INDEX_ID_CU_LEGACY] = &(bmain->curves);
lb[INDEX_ID_MB] = &(bmain->metaballs);
lb[INDEX_ID_CV] = &(bmain->hair_curves);
lb[INDEX_ID_PT] = &(bmain->pointclouds);
lb[INDEX_ID_VO] = &(bmain->volumes);
lb[INDEX_ID_LT] = &(bmain->lattices);
lb[INDEX_ID_LA] = &(bmain->lights);
lb[INDEX_ID_CA] = &(bmain->cameras);
lb[INDEX_ID_TXT] = &(bmain->texts);
lb[INDEX_ID_SO] = &(bmain->sounds);
lb[INDEX_ID_GR] = &(bmain->collections);
lb[INDEX_ID_PAL] = &(bmain->palettes);
lb[INDEX_ID_PC] = &(bmain->paintcurves);
lb[INDEX_ID_BR] = &(bmain->brushes);
lb[INDEX_ID_PA] = &(bmain->particles);
lb[INDEX_ID_SPK] = &(bmain->speakers);
lb[INDEX_ID_LP] = &(bmain->lightprobes);
lb[INDEX_ID_WO] = &(bmain->worlds);
lb[INDEX_ID_MC] = &(bmain->movieclips);
lb[INDEX_ID_SCR] = &(bmain->screens);
lb[INDEX_ID_OB] = &(bmain->objects);
lb[INDEX_ID_LS] = &(bmain->linestyles); /* referenced by scenes */
lb[INDEX_ID_SCE] = &(bmain->scenes);
lb[INDEX_ID_WS] = &(bmain->workspaces); /* before wm, so it's freed after it! */
lb[INDEX_ID_WM] = &(bmain->wm);
lb[INDEX_ID_MSK] = &(bmain->masks);
lb[INDEX_ID_NULL] = nullptr;
return (INDEX_ID_MAX - 1);
}
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