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|
/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/blenkernel/intern/blender.c
* \ingroup bke
*/
#ifndef _GNU_SOURCE
/* Needed for O_NOFOLLOW on some platforms. */
# define _GNU_SOURCE 1
#endif
#ifndef _WIN32
# include <unistd.h> // for read close
#else
# include <io.h> // for open close read
#endif
#include <stdlib.h>
#include <stdio.h>
#include <stddef.h>
#include <string.h>
#include <fcntl.h> /* for open */
#include <errno.h>
#include "MEM_guardedalloc.h"
#include "DNA_userdef_types.h"
#include "DNA_scene_types.h"
#include "DNA_screen_types.h"
#include "DNA_view3d_types.h"
#include "DNA_windowmanager_types.h"
#include "BLI_blenlib.h"
#include "BLI_utildefines.h"
#include "BLI_callbacks.h"
#include "IMB_imbuf.h"
#include "IMB_moviecache.h"
#include "BKE_appdir.h"
#include "BKE_blender.h"
#include "BKE_bpath.h"
#include "BKE_brush.h"
#include "BKE_context.h"
#include "BKE_depsgraph.h"
#include "BKE_global.h"
#include "BKE_idprop.h"
#include "BKE_image.h"
#include "BKE_ipo.h"
#include "BKE_library.h"
#include "BKE_main.h"
#include "BKE_node.h"
#include "BKE_report.h"
#include "BKE_scene.h"
#include "BKE_screen.h"
#include "BKE_sequencer.h"
#include "BKE_sound.h"
#include "RE_pipeline.h"
#include "RE_render_ext.h"
#include "BLF_api.h"
#include "BLO_undofile.h"
#include "BLO_readfile.h"
#include "BLO_writefile.h"
#include "RNA_access.h"
#include "WM_api.h" // XXXXX BAD, very BAD dependency (bad level call) - remove asap, elubie
#include "IMB_colormanagement.h"
#ifdef WITH_PYTHON
# include "BPY_extern.h"
#endif
Global G;
UserDef U;
/* ListBase = {NULL, NULL}; */
char versionstr[48] = "";
/* ********** free ********** */
/* only to be called on exit blender */
void free_blender(void)
{
/* samples are in a global list..., also sets G.main->sound->sample NULL */
BKE_main_free(G.main);
G.main = NULL;
BKE_spacetypes_free(); /* after free main, it uses space callbacks */
IMB_exit();
BKE_images_exit();
DAG_exit();
BKE_brush_system_exit();
RE_texture_rng_exit();
BLI_callback_global_finalize();
BKE_sequencer_cache_destruct();
IMB_moviecache_destruct();
free_nodesystem();
}
void initglobals(void)
{
memset(&G, 0, sizeof(Global));
U.savetime = 1;
G.main = BKE_main_new();
strcpy(G.ima, "//");
if (BLENDER_SUBVERSION)
BLI_snprintf(versionstr, sizeof(versionstr), "v%d.%02d.%d", BLENDER_VERSION / 100, BLENDER_VERSION % 100, BLENDER_SUBVERSION);
else
BLI_snprintf(versionstr, sizeof(versionstr), "v%d.%02d", BLENDER_VERSION / 100, BLENDER_VERSION % 100);
#ifndef WITH_PYTHON_SECURITY /* default */
G.f |= G_SCRIPT_AUTOEXEC;
#else
G.f &= ~G_SCRIPT_AUTOEXEC;
#endif
}
/***/
static void clear_global(void)
{
// extern short winqueue_break; /* screen.c */
BKE_main_free(G.main); /* free all lib data */
// free_vertexpaint();
G.main = NULL;
}
static bool clean_paths_visit_cb(void *UNUSED(userdata), char *path_dst, const char *path_src)
{
strcpy(path_dst, path_src);
BLI_path_native_slash(path_dst);
return !STREQ(path_dst, path_src);
}
/* make sure path names are correct for OS */
static void clean_paths(Main *main)
{
Scene *scene;
BKE_bpath_traverse_main(main, clean_paths_visit_cb, BKE_BPATH_TRAVERSE_SKIP_MULTIFILE, NULL);
for (scene = main->scene.first; scene; scene = scene->id.next) {
BLI_path_native_slash(scene->r.pic);
}
}
static bool wm_scene_is_visible(wmWindowManager *wm, Scene *scene)
{
wmWindow *win;
for (win = wm->windows.first; win; win = win->next) {
if (win->screen->scene == scene) {
return true;
}
}
return false;
}
/* context matching */
/* handle no-ui case */
/* note, this is called on Undo so any slow conversion functions here
* should be avoided or check (mode!='u') */
static void setup_app_data(bContext *C, BlendFileData *bfd, const char *filepath)
{
bScreen *curscreen = NULL;
Scene *curscene = NULL;
int recover;
enum {
LOAD_UI = 1,
LOAD_UI_OFF,
LOAD_UNDO,
} mode;
if (BLI_listbase_is_empty(&bfd->main->screen)) {
mode = LOAD_UNDO;
}
else if (G.fileflags & G_FILE_NO_UI) {
mode = LOAD_UI_OFF;
}
else {
mode = LOAD_UI;
}
recover = (G.fileflags & G_FILE_RECOVER);
/* Free all render results, without this stale data gets displayed after loading files */
if (mode != LOAD_UNDO) {
RE_FreeAllRenderResults();
}
/* Only make filepaths compatible when loading for real (not undo) */
if (mode != LOAD_UNDO) {
clean_paths(bfd->main);
}
/* XXX here the complex windowmanager matching */
/* no load screens? */
if (mode != LOAD_UI) {
/* Logic for 'track_undo_scene' is to keep using the scene which the active screen has,
* as long as the scene associated with the undo operation is visible in one of the open windows.
*
* - 'curscreen->scene' - scene the user is currently looking at.
* - 'bfd->curscene' - scene undo-step was created in.
*
* This means users can have 2+ windows open and undo in both without screens switching.
* But if they close one of the screens,
* undo will ensure that the scene being operated on will be activated
* (otherwise we'd be undoing on an off-screen scene which isn't acceptable).
* see: T43424
*/
bool track_undo_scene;
/* comes from readfile.c */
SWAP(ListBase, G.main->wm, bfd->main->wm);
SWAP(ListBase, G.main->screen, bfd->main->screen);
/* we re-use current screen */
curscreen = CTX_wm_screen(C);
/* but use new Scene pointer */
curscene = bfd->curscene;
track_undo_scene = (mode == LOAD_UNDO && curscreen && curscene && bfd->main->wm.first);
if (curscene == NULL) curscene = bfd->main->scene.first;
/* empty file, we add a scene to make Blender work */
if (curscene == NULL) curscene = BKE_scene_add(bfd->main, "Empty");
if (track_undo_scene) {
/* keep the old (free'd) scene, let 'blo_lib_link_screen_restore'
* replace it with 'curscene' if its needed */
}
else {
/* and we enforce curscene to be in current screen */
if (curscreen) {
/* can run in bgmode */
curscreen->scene = curscene;
}
}
/* clear_global will free G.main, here we can still restore pointers */
blo_lib_link_screen_restore(bfd->main, curscreen, curscene);
/* curscreen might not be set when loading without ui (see T44217) so only re-assign if available */
if (curscreen) {
curscene = curscreen->scene;
}
if (track_undo_scene) {
wmWindowManager *wm = bfd->main->wm.first;
if (wm_scene_is_visible(wm, bfd->curscene) == false) {
curscene = bfd->curscene;
curscreen->scene = curscene;
BKE_screen_view3d_scene_sync(curscreen);
}
}
}
/* free G.main Main database */
// CTX_wm_manager_set(C, NULL);
clear_global();
/* clear old property update cache, in case some old references are left dangling */
RNA_property_update_cache_free();
G.main = bfd->main;
CTX_data_main_set(C, G.main);
if (bfd->user) {
/* only here free userdef themes... */
BKE_userdef_free();
U = *bfd->user;
/* Security issue: any blend file could include a USER block.
*
* Currently we load prefs from BLENDER_STARTUP_FILE and later on load BLENDER_USERPREF_FILE,
* to load the preferences defined in the users home dir.
*
* This means we will never accidentally (or maliciously)
* enable scripts auto-execution by loading a '.blend' file.
*/
U.flag |= USER_SCRIPT_AUTOEXEC_DISABLE;
MEM_freeN(bfd->user);
}
/* case G_FILE_NO_UI or no screens in file */
if (mode != LOAD_UI) {
/* leave entire context further unaltered? */
CTX_data_scene_set(C, curscene);
}
else {
G.fileflags = bfd->fileflags;
CTX_wm_manager_set(C, G.main->wm.first);
CTX_wm_screen_set(C, bfd->curscreen);
CTX_data_scene_set(C, bfd->curscene);
CTX_wm_area_set(C, NULL);
CTX_wm_region_set(C, NULL);
CTX_wm_menu_set(C, NULL);
curscene = bfd->curscene;
}
/* this can happen when active scene was lib-linked, and doesn't exist anymore */
if (CTX_data_scene(C) == NULL) {
/* in case we don't even have a local scene, add one */
if (!G.main->scene.first)
BKE_scene_add(G.main, "Scene");
CTX_data_scene_set(C, G.main->scene.first);
CTX_wm_screen(C)->scene = CTX_data_scene(C);
curscene = CTX_data_scene(C);
}
BLI_assert(curscene == CTX_data_scene(C));
/* special cases, override loaded flags: */
if (G.f != bfd->globalf) {
const int flags_keep = (G_SWAP_EXCHANGE | G_SCRIPT_AUTOEXEC | G_SCRIPT_OVERRIDE_PREF);
bfd->globalf = (bfd->globalf & ~flags_keep) | (G.f & flags_keep);
}
G.f = bfd->globalf;
#ifdef WITH_PYTHON
/* let python know about new main */
BPY_context_update(C);
#endif
if (!G.background) {
//setscreen(G.curscreen);
}
/* FIXME: this version patching should really be part of the file-reading code,
* but we still get too many unrelated data-corruption crashes otherwise... */
if (G.main->versionfile < 250)
do_versions_ipos_to_animato(G.main);
G.main->recovered = 0;
/* startup.blend or recovered startup */
if (bfd->filename[0] == 0) {
G.main->name[0] = 0;
}
else if (recover && G.relbase_valid) {
/* in case of autosave or quit.blend, use original filename instead
* use relbase_valid to make sure the file is saved, else we get <memory2> in the filename */
filepath = bfd->filename;
G.main->recovered = 1;
/* these are the same at times, should never copy to the same location */
if (G.main->name != filepath)
BLI_strncpy(G.main->name, filepath, FILE_MAX);
}
/* baseflags, groups, make depsgraph, etc */
/* first handle case if other windows have different scenes visible */
if (mode == LOAD_UI) {
wmWindowManager *wm = G.main->wm.first;
if (wm) {
wmWindow *win;
for (win = wm->windows.first; win; win = win->next) {
if (win->screen && win->screen->scene) /* zealous check... */
if (win->screen->scene != curscene)
BKE_scene_set_background(G.main, win->screen->scene);
}
}
}
BKE_scene_set_background(G.main, curscene);
if (mode != LOAD_UNDO) {
RE_FreeAllPersistentData();
IMB_colormanagement_check_file_config(G.main);
}
MEM_freeN(bfd);
}
static int handle_subversion_warning(Main *main, ReportList *reports)
{
if (main->minversionfile > BLENDER_VERSION ||
(main->minversionfile == BLENDER_VERSION &&
main->minsubversionfile > BLENDER_SUBVERSION))
{
BKE_reportf(reports, RPT_ERROR, "File written by newer Blender binary (%d.%d), expect loss of data!",
main->minversionfile, main->minsubversionfile);
}
return 1;
}
static void keymap_item_free(wmKeyMapItem *kmi)
{
if (kmi->properties) {
IDP_FreeProperty(kmi->properties);
MEM_freeN(kmi->properties);
}
if (kmi->ptr)
MEM_freeN(kmi->ptr);
}
void BKE_userdef_free(void)
{
wmKeyMap *km;
wmKeyMapItem *kmi;
wmKeyMapDiffItem *kmdi;
bAddon *addon, *addon_next;
uiFont *font;
for (km = U.user_keymaps.first; km; km = km->next) {
for (kmdi = km->diff_items.first; kmdi; kmdi = kmdi->next) {
if (kmdi->add_item) {
keymap_item_free(kmdi->add_item);
MEM_freeN(kmdi->add_item);
}
if (kmdi->remove_item) {
keymap_item_free(kmdi->remove_item);
MEM_freeN(kmdi->remove_item);
}
}
for (kmi = km->items.first; kmi; kmi = kmi->next)
keymap_item_free(kmi);
BLI_freelistN(&km->diff_items);
BLI_freelistN(&km->items);
}
for (addon = U.addons.first; addon; addon = addon_next) {
addon_next = addon->next;
if (addon->prop) {
IDP_FreeProperty(addon->prop);
MEM_freeN(addon->prop);
}
MEM_freeN(addon);
}
for (font = U.uifonts.first; font; font = font->next) {
BLF_unload_id(font->blf_id);
}
BLF_default_set(-1);
BLI_freelistN(&U.autoexec_paths);
BLI_freelistN(&U.uistyles);
BLI_freelistN(&U.uifonts);
BLI_freelistN(&U.themes);
BLI_freelistN(&U.user_keymaps);
}
/* handle changes in settings that need recalc */
void BKE_userdef_state(void)
{
/* prevent accidents */
if (U.pixelsize == 0) U.pixelsize = 1;
BLF_default_dpi(U.pixelsize * U.dpi);
U.widget_unit = (U.pixelsize * U.dpi * 20 + 36) / 72;
}
int BKE_read_file(bContext *C, const char *filepath, ReportList *reports)
{
BlendFileData *bfd;
int retval = BKE_READ_FILE_OK;
if (strstr(filepath, BLENDER_STARTUP_FILE) == NULL) /* don't print user-pref loading */
printf("read blend: %s\n", filepath);
bfd = BLO_read_from_file(filepath, reports);
if (bfd) {
if (bfd->user) retval = BKE_READ_FILE_OK_USERPREFS;
if (0 == handle_subversion_warning(bfd->main, reports)) {
BKE_main_free(bfd->main);
MEM_freeN(bfd);
bfd = NULL;
retval = BKE_READ_FILE_FAIL;
}
else
setup_app_data(C, bfd, filepath); // frees BFD
}
else
BKE_reports_prependf(reports, "Loading '%s' failed: ", filepath);
return (bfd ? retval : BKE_READ_FILE_FAIL);
}
bool BKE_read_file_from_memory(
bContext *C, const void *filebuf, int filelength,
ReportList *reports, bool update_defaults)
{
BlendFileData *bfd;
bfd = BLO_read_from_memory(filebuf, filelength, reports);
if (bfd) {
if (update_defaults)
BLO_update_defaults_startup_blend(bfd->main);
setup_app_data(C, bfd, "<memory2>");
}
else {
BKE_reports_prepend(reports, "Loading failed: ");
}
return (bfd != NULL);
}
/* memfile is the undo buffer */
bool BKE_read_file_from_memfile(
bContext *C, MemFile *memfile,
ReportList *reports)
{
BlendFileData *bfd;
bfd = BLO_read_from_memfile(CTX_data_main(C), G.main->name, memfile, reports);
if (bfd) {
/* remove the unused screens and wm */
while (bfd->main->wm.first)
BKE_libblock_free_ex(bfd->main, bfd->main->wm.first, true);
while (bfd->main->screen.first)
BKE_libblock_free_ex(bfd->main, bfd->main->screen.first, true);
setup_app_data(C, bfd, "<memory1>");
}
else {
BKE_reports_prepend(reports, "Loading failed: ");
}
return (bfd != NULL);
}
/* only read the userdef from a .blend */
int BKE_read_file_userdef(const char *filepath, ReportList *reports)
{
BlendFileData *bfd;
int retval = BKE_READ_FILE_FAIL;
bfd = BLO_read_from_file(filepath, reports);
if (bfd) {
if (bfd->user) {
retval = BKE_READ_FILE_OK_USERPREFS;
/* only here free userdef themes... */
BKE_userdef_free();
U = *bfd->user;
MEM_freeN(bfd->user);
}
BKE_main_free(bfd->main);
MEM_freeN(bfd);
}
return retval;
}
/* only write the userdef in a .blend */
int BKE_write_file_userdef(const char *filepath, ReportList *reports)
{
Main *mainb = MEM_callocN(sizeof(Main), "empty main");
int retval = 0;
if (BLO_write_file(mainb, filepath, G_FILE_USERPREFS, reports, NULL)) {
retval = 1;
}
MEM_freeN(mainb);
return retval;
}
/* ***************** testing for break ************* */
static void (*blender_test_break_cb)(void) = NULL;
void BKE_blender_callback_test_break_set(void (*func)(void))
{
blender_test_break_cb = func;
}
int blender_test_break(void)
{
if (!G.background) {
if (blender_test_break_cb)
blender_test_break_cb();
}
return (G.is_break == true);
}
/* -------------------------------------------------------------------- */
/** \name Global Undo
* \{ */
#define UNDO_DISK 0
typedef struct UndoElem {
struct UndoElem *next, *prev;
char str[FILE_MAX];
char name[BKE_UNDO_STR_MAX];
MemFile memfile;
uintptr_t undosize;
} UndoElem;
static ListBase undobase = {NULL, NULL};
static UndoElem *curundo = NULL;
static int read_undosave(bContext *C, UndoElem *uel)
{
char mainstr[sizeof(G.main->name)];
int success = 0, fileflags;
/* This is needed so undoing/redoing doesn't crash with threaded previews going */
WM_jobs_kill_all_except(CTX_wm_manager(C), CTX_wm_screen(C));
BLI_strncpy(mainstr, G.main->name, sizeof(mainstr)); /* temporal store */
fileflags = G.fileflags;
G.fileflags |= G_FILE_NO_UI;
if (UNDO_DISK)
success = (BKE_read_file(C, uel->str, NULL) != BKE_READ_FILE_FAIL);
else
success = BKE_read_file_from_memfile(C, &uel->memfile, NULL);
/* restore */
BLI_strncpy(G.main->name, mainstr, sizeof(G.main->name)); /* restore */
G.fileflags = fileflags;
if (success) {
/* important not to update time here, else non keyed tranforms are lost */
DAG_on_visible_update(G.main, false);
}
return success;
}
/* name can be a dynamic string */
void BKE_undo_write(bContext *C, const char *name)
{
uintptr_t maxmem, totmem, memused;
int nr /*, success */ /* UNUSED */;
UndoElem *uel;
if ((U.uiflag & USER_GLOBALUNDO) == 0) {
return;
}
if (U.undosteps == 0) {
return;
}
/* remove all undos after (also when curundo == NULL) */
while (undobase.last != curundo) {
uel = undobase.last;
BLI_remlink(&undobase, uel);
BLO_memfile_free(&uel->memfile);
MEM_freeN(uel);
}
/* make new */
curundo = uel = MEM_callocN(sizeof(UndoElem), "undo file");
BLI_strncpy(uel->name, name, sizeof(uel->name));
BLI_addtail(&undobase, uel);
/* and limit amount to the maximum */
nr = 0;
uel = undobase.last;
while (uel) {
nr++;
if (nr == U.undosteps) break;
uel = uel->prev;
}
if (uel) {
while (undobase.first != uel) {
UndoElem *first = undobase.first;
BLI_remlink(&undobase, first);
/* the merge is because of compression */
BLO_memfile_merge(&first->memfile, &first->next->memfile);
MEM_freeN(first);
}
}
/* disk save version */
if (UNDO_DISK) {
static int counter = 0;
char filepath[FILE_MAX];
char numstr[32];
int fileflags = G.fileflags & ~(G_FILE_HISTORY); /* don't do file history on undo */
/* calculate current filepath */
counter++;
counter = counter % U.undosteps;
BLI_snprintf(numstr, sizeof(numstr), "%d.blend", counter);
BLI_make_file_string("/", filepath, BKE_tempdir_session(), numstr);
/* success = */ /* UNUSED */ BLO_write_file(CTX_data_main(C), filepath, fileflags, NULL, NULL);
BLI_strncpy(curundo->str, filepath, sizeof(curundo->str));
}
else {
MemFile *prevfile = NULL;
if (curundo->prev) prevfile = &(curundo->prev->memfile);
memused = MEM_get_memory_in_use();
/* success = */ /* UNUSED */ BLO_write_file_mem(CTX_data_main(C), prevfile, &curundo->memfile, G.fileflags);
curundo->undosize = MEM_get_memory_in_use() - memused;
}
if (U.undomemory != 0) {
/* limit to maximum memory (afterwards, we can't know in advance) */
totmem = 0;
maxmem = ((uintptr_t)U.undomemory) * 1024 * 1024;
/* keep at least two (original + other) */
uel = undobase.last;
while (uel && uel->prev) {
totmem += uel->undosize;
if (totmem > maxmem) break;
uel = uel->prev;
}
if (uel) {
if (uel->prev && uel->prev->prev)
uel = uel->prev;
while (undobase.first != uel) {
UndoElem *first = undobase.first;
BLI_remlink(&undobase, first);
/* the merge is because of compression */
BLO_memfile_merge(&first->memfile, &first->next->memfile);
MEM_freeN(first);
}
}
}
}
/* 1 = an undo, -1 is a redo. we have to make sure 'curundo' remains at current situation */
void BKE_undo_step(bContext *C, int step)
{
if (step == 0) {
read_undosave(C, curundo);
}
else if (step == 1) {
/* curundo should never be NULL, after restart or load file it should call undo_save */
if (curundo == NULL || curundo->prev == NULL) {
// XXX error("No undo available");
}
else {
if (G.debug & G_DEBUG) printf("undo %s\n", curundo->name);
curundo = curundo->prev;
read_undosave(C, curundo);
}
}
else {
/* curundo has to remain current situation! */
if (curundo == NULL || curundo->next == NULL) {
// XXX error("No redo available");
}
else {
read_undosave(C, curundo->next);
curundo = curundo->next;
if (G.debug & G_DEBUG) printf("redo %s\n", curundo->name);
}
}
}
void BKE_undo_reset(void)
{
UndoElem *uel;
uel = undobase.first;
while (uel) {
BLO_memfile_free(&uel->memfile);
uel = uel->next;
}
BLI_freelistN(&undobase);
curundo = NULL;
}
/* based on index nr it does a restore */
void BKE_undo_number(bContext *C, int nr)
{
curundo = BLI_findlink(&undobase, nr);
BKE_undo_step(C, 0);
}
/* go back to the last occurance of name in stack */
void BKE_undo_name(bContext *C, const char *name)
{
UndoElem *uel = BLI_rfindstring(&undobase, name, offsetof(UndoElem, name));
if (uel && uel->prev) {
curundo = uel->prev;
BKE_undo_step(C, 0);
}
}
/* name optional */
bool BKE_undo_is_valid(const char *name)
{
if (name) {
UndoElem *uel = BLI_rfindstring(&undobase, name, offsetof(UndoElem, name));
return uel && uel->prev;
}
return undobase.last != undobase.first;
}
/* get name of undo item, return null if no item with this index */
/* if active pointer, set it to 1 if true */
const char *BKE_undo_get_name(int nr, bool *r_active)
{
UndoElem *uel = BLI_findlink(&undobase, nr);
if (r_active) *r_active = false;
if (uel) {
if (r_active && (uel == curundo)) {
*r_active = true;
}
return uel->name;
}
return NULL;
}
/**
* Saves .blend using undo buffer.
*
* \return success.
*/
bool BKE_undo_save_file(const char *filename)
{
UndoElem *uel;
MemFileChunk *chunk;
int file, oflags;
if ((U.uiflag & USER_GLOBALUNDO) == 0) {
return false;
}
uel = curundo;
if (uel == NULL) {
fprintf(stderr, "No undo buffer to save recovery file\n");
return false;
}
/* note: This is currently used for autosave and 'quit.blend', where _not_ following symlinks is OK,
* however if this is ever executed explicitly by the user, we may want to allow writing to symlinks.
*/
oflags = O_BINARY | O_WRONLY | O_CREAT | O_TRUNC;
#ifdef O_NOFOLLOW
/* use O_NOFOLLOW to avoid writing to a symlink - use 'O_EXCL' (CVE-2008-1103) */
oflags |= O_NOFOLLOW;
#else
/* TODO(sergey): How to deal with symlinks on windows? */
# ifndef _MSC_VER
# warning "Symbolic links will be followed on undo save, possibly causing CVE-2008-1103"
# endif
#endif
file = BLI_open(filename, oflags, 0666);
if (file == -1) {
fprintf(stderr, "Unable to save '%s': %s\n",
filename, errno ? strerror(errno) : "Unknown error opening file");
return false;
}
for (chunk = uel->memfile.chunks.first; chunk; chunk = chunk->next) {
if (write(file, chunk->buf, chunk->size) != chunk->size) {
break;
}
}
close(file);
if (chunk) {
fprintf(stderr, "Unable to save '%s': %s\n",
filename, errno ? strerror(errno) : "Unknown error writing file");
return false;
}
return true;
}
/* sets curscene */
Main *BKE_undo_get_main(Scene **r_scene)
{
Main *mainp = NULL;
BlendFileData *bfd = BLO_read_from_memfile(G.main, G.main->name, &curundo->memfile, NULL);
if (bfd) {
mainp = bfd->main;
if (r_scene) {
*r_scene = bfd->curscene;
}
MEM_freeN(bfd);
}
return mainp;
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Partial `.blend` file save.
* \{ */
void BKE_blendfile_write_partial_begin(Main *bmain_src)
{
BKE_main_id_tag_all(bmain_src, LIB_TAG_NEED_EXPAND | LIB_TAG_DOIT, false);
}
void BKE_blendfile_write_partial_tag_ID(ID *id, bool set)
{
if (set) {
id->tag |= LIB_TAG_NEED_EXPAND | LIB_TAG_DOIT;
}
else {
id->tag &= ~(LIB_TAG_NEED_EXPAND | LIB_TAG_DOIT);
}
}
static void blendfile_write_partial_cb(void *UNUSED(handle), Main *UNUSED(bmain), void *vid)
{
if (vid) {
ID *id = vid;
/* only tag for need-expand if not done, prevents eternal loops */
if ((id->tag & LIB_TAG_DOIT) == 0)
id->tag |= LIB_TAG_NEED_EXPAND | LIB_TAG_DOIT;
}
}
/**
* \return Success.
*/
bool BKE_blendfile_write_partial(
Main *bmain_src, const char *filepath, const int write_flags, ReportList *reports)
{
Main *bmain_dst = MEM_callocN(sizeof(Main), "copybuffer");
ListBase *lbarray_dst[MAX_LIBARRAY], *lbarray_src[MAX_LIBARRAY];
int a, retval;
void *path_list_backup = NULL;
const int path_list_flag = (BKE_BPATH_TRAVERSE_SKIP_LIBRARY | BKE_BPATH_TRAVERSE_SKIP_MULTIFILE);
if (write_flags & G_FILE_RELATIVE_REMAP) {
path_list_backup = BKE_bpath_list_backup(bmain_src, path_list_flag);
}
BLO_main_expander(blendfile_write_partial_cb);
BLO_expand_main(NULL, bmain_src);
/* move over all tagged blocks */
set_listbasepointers(bmain_src, lbarray_src);
a = set_listbasepointers(bmain_dst, lbarray_dst);
while (a--) {
ID *id, *nextid;
ListBase *lb_dst = lbarray_dst[a], *lb_src = lbarray_src[a];
for (id = lb_src->first; id; id = nextid) {
nextid = id->next;
if (id->tag & LIB_TAG_DOIT) {
BLI_remlink(lb_src, id);
BLI_addtail(lb_dst, id);
}
}
}
/* save the buffer */
retval = BLO_write_file(bmain_dst, filepath, write_flags, reports, NULL);
/* move back the main, now sorted again */
set_listbasepointers(bmain_src, lbarray_dst);
a = set_listbasepointers(bmain_dst, lbarray_src);
while (a--) {
ID *id;
ListBase *lb_dst = lbarray_dst[a], *lb_src = lbarray_src[a];
while ((id = BLI_pophead(lb_src))) {
BLI_addtail(lb_dst, id);
id_sort_by_name(lb_dst, id);
}
}
MEM_freeN(bmain_dst);
if (path_list_backup) {
BKE_bpath_list_restore(bmain_src, path_list_flag, path_list_backup);
BKE_bpath_list_free(path_list_backup);
}
return retval;
}
void BKE_blendfile_write_partial_end(Main *bmain_src)
{
BKE_main_id_tag_all(bmain_src, LIB_TAG_NEED_EXPAND | LIB_TAG_DOIT, false);
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Copy/Paste `.blend`, partial saves.
* \{ */
void BKE_copybuffer_begin(Main *bmain_src)
{
BKE_blendfile_write_partial_begin(bmain_src);
}
void BKE_copybuffer_tag_ID(ID *id)
{
BKE_blendfile_write_partial_tag_ID(id, true);
}
/**
* \return Success.
*/
bool BKE_copybuffer_save(Main *bmain_src, const char *filename, ReportList *reports)
{
const int write_flags = G_FILE_RELATIVE_REMAP;
bool retval = BKE_blendfile_write_partial(bmain_src, filename, write_flags, reports);
BKE_blendfile_write_partial_end(bmain_src);
return retval;
}
/**
* \return Success.
*/
bool BKE_copybuffer_paste(bContext *C, const char *libname, const short flag, ReportList *reports)
{
Main *bmain = CTX_data_main(C);
Scene *scene = CTX_data_scene(C);
View3D *v3d = CTX_wm_view3d(C);
Main *mainl = NULL;
Library *lib;
BlendHandle *bh;
bh = BLO_blendhandle_from_file(libname, reports);
if (bh == NULL) {
/* error reports will have been made by BLO_blendhandle_from_file() */
return false;
}
BKE_scene_base_deselect_all(scene);
/* tag everything, all untagged data can be made local
* its also generally useful to know what is new
*
* take extra care BKE_main_id_flag_all(bmain, LIB_TAG_PRE_EXISTING, false) is called after! */
BKE_main_id_tag_all(bmain, LIB_TAG_PRE_EXISTING, true);
/* here appending/linking starts */
mainl = BLO_library_link_begin(bmain, &bh, libname);
BLO_library_link_copypaste(mainl, bh);
BLO_library_link_end(mainl, &bh, flag, scene, v3d);
/* mark all library linked objects to be updated */
BKE_main_lib_objects_recalc_all(bmain);
IMB_colormanagement_check_file_config(bmain);
/* append, rather than linking */
lib = BLI_findstring(&bmain->library, libname, offsetof(Library, filepath));
BKE_library_make_local(bmain, lib, true, false);
/* important we unset, otherwise these object wont
* link into other scenes from this blend file */
BKE_main_id_tag_all(bmain, LIB_TAG_PRE_EXISTING, false);
/* recreate dependency graph to include new objects */
DAG_relations_tag_update(bmain);
BLO_blendhandle_close(bh);
/* remove library... */
return true;
}
/** \} */
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