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|
/* blender.c jan 94 MIXED MODEL
*
* common help functions and data
*
* $Id$
*
* ***** 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 *****
*/
#ifndef _WIN32
#include <unistd.h> // for read close
#else
#include <io.h> // for open close read
#define open _open
#define read _read
#define close _close
#define write _write
#endif
#include <stdlib.h>
#include <stdio.h>
#include <stddef.h>
#include <string.h>
#include <fcntl.h> // for open
#include "MEM_guardedalloc.h"
#include "DNA_userdef_types.h"
#include "DNA_scene_types.h"
#include "DNA_screen_types.h"
#include "DNA_sequence_types.h"
#include "DNA_sound_types.h"
#include "BLI_blenlib.h"
#include "BLI_bpath.h"
#include "BLI_dynstr.h"
#include "BLI_path_util.h"
#include "BLI_utildefines.h"
#include "IMB_imbuf.h"
#include "BKE_blender.h"
#include "BKE_context.h"
#include "BKE_depsgraph.h"
#include "BKE_displist.h"
#include "BKE_global.h"
#include "BKE_idprop.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 "BLO_undofile.h"
#include "BLO_readfile.h"
#include "BLO_writefile.h"
#include "BKE_utildefines.h"
#include "WM_api.h" // XXXXX BAD, very BAD dependency (bad level call) - remove asap, elubie
Global G;
UserDef U;
/* ListBase = {NULL, NULL}; */
short ENDIAN_ORDER;
static 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 */
free_main(G.main);
G.main= NULL;
BKE_spacetypes_free(); /* after free main, it uses space callbacks */
IMB_exit();
seq_stripelem_cache_destruct();
free_nodesystem();
}
void initglobals(void)
{
memset(&G, 0, sizeof(Global));
U.savetime= 1;
G.main= MEM_callocN(sizeof(Main), "initglobals");
strcpy(G.ima, "//");
ENDIAN_ORDER= 1;
ENDIAN_ORDER= (((char*)&ENDIAN_ORDER)[0])? L_ENDIAN: B_ENDIAN;
if(BLENDER_SUBVERSION)
BLI_snprintf(versionstr, sizeof(versionstr), "www.blender.org %d.%d", BLENDER_VERSION, BLENDER_SUBVERSION);
else
BLI_snprintf(versionstr, sizeof(versionstr), "www.blender.org %d", BLENDER_VERSION);
#ifdef _WIN32 // FULLSCREEN
G.windowstate = G_WINDOWSTATE_USERDEF;
#endif
G.charstart = 0x0000;
G.charmin = 0x0000;
G.charmax = 0xffff;
G.f |= G_SCRIPT_AUTOEXEC;
}
/***/
static void clear_global(void)
{
// extern short winqueue_break; /* screen.c */
fastshade_free_render(); /* lamps hang otherwise */
free_main(G.main); /* free all lib data */
// free_vertexpaint();
G.main= NULL;
}
/* make sure path names are correct for OS */
static void clean_paths(Main *main)
{
struct BPathIterator *bpi;
char filepath_expanded[1024];
Scene *scene;
for(BLI_bpathIterator_init(&bpi, main, main->name, BPATH_USE_PACKED); !BLI_bpathIterator_isDone(bpi); BLI_bpathIterator_step(bpi)) {
BLI_bpathIterator_getPath(bpi, filepath_expanded);
BLI_clean(filepath_expanded);
BLI_bpathIterator_setPath(bpi, filepath_expanded);
}
BLI_bpathIterator_free(bpi);
for(scene= main->scene.first; scene; scene= scene->id.next) {
BLI_clean(scene->r.backbuf);
BLI_clean(scene->r.pic);
}
}
/* 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 *filename)
{
bScreen *curscreen= NULL;
Scene *curscene= NULL;
int recover;
char mode;
/* 'u' = undo save, 'n' = no UI load */
if(bfd->main->screen.first==NULL) mode= 'u';
else if(G.fileflags & G_FILE_NO_UI) mode= 'n';
else mode= 0;
recover= (G.fileflags & G_FILE_RECOVER);
/* Only make filepaths compatible when loading for real (not undo) */
if(mode != 'u') {
clean_paths(bfd->main);
}
/* XXX here the complex windowmanager matching */
/* no load screens? */
if(mode) {
/* comes from readfile.c */
extern void lib_link_screen_restore(Main *, bScreen *, Scene *);
SWAP(ListBase, G.main->wm, bfd->main->wm);
SWAP(ListBase, G.main->screen, bfd->main->screen);
SWAP(ListBase, G.main->script, bfd->main->script);
/* we re-use current screen */
curscreen= CTX_wm_screen(C);
/* but use new Scene pointer */
curscene= bfd->curscene;
if(curscene==NULL) curscene= bfd->main->scene.first;
/* and we enforce curscene to be in current screen */
if(curscreen) curscreen->scene= curscene; /* can run in bgmode */
/* clear_global will free G.main, here we can still restore pointers */
lib_link_screen_restore(bfd->main, curscreen, curscene);
}
/* free G.main Main database */
// CTX_wm_manager_set(C, NULL);
clear_global();
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;
MEM_freeN(bfd->user);
}
/* case G_FILE_NO_UI or no screens in file */
if(mode) {
/* leave entire context further unaltered? */
CTX_data_scene_set(C, curscene);
}
else {
G.winpos= bfd->winpos;
G.displaymode= bfd->displaymode;
G.fileflags= bfd->fileflags;
CTX_wm_manager_set(C, bfd->main->wm.first);
CTX_wm_screen_set(C, bfd->curscreen);
CTX_data_scene_set(C, bfd->curscreen->scene);
CTX_wm_area_set(C, NULL);
CTX_wm_region_set(C, NULL);
CTX_wm_menu_set(C, NULL);
}
/* this can happen when active scene was lib-linked, and doesnt exist anymore */
if(CTX_data_scene(C)==NULL) {
CTX_data_scene_set(C, bfd->main->scene.first);
CTX_wm_screen(C)->scene= CTX_data_scene(C);
curscene= CTX_data_scene(C);
}
/* special cases, override loaded flags: */
if (G.f & G_DEBUG) bfd->globalf |= G_DEBUG;
else bfd->globalf &= ~G_DEBUG;
if (G.f & G_SWAP_EXCHANGE) bfd->globalf |= G_SWAP_EXCHANGE;
else bfd->globalf &= ~G_SWAP_EXCHANGE;
if (G.f & G_SCRIPT_AUTOEXEC) bfd->globalf |= G_SCRIPT_AUTOEXEC;
else bfd->globalf &= ~G_SCRIPT_AUTOEXEC;
G.f= bfd->globalf;
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);
if(recover && bfd->filename[0] && 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 */
filename= bfd->filename;
}
#if 0
else if (!G.relbase_valid) {
/* otherwise, use an empty string as filename, rather than <memory2> */
filename="";
}
#endif
/* these are the same at times, should never copy to the same location */
if(G.main->name != filename)
BLI_strncpy(G.main->name, filename, FILE_MAX);
/* baseflags, groups, make depsgraph, etc */
set_scene_bg(G.main, CTX_data_scene(C));
MEM_freeN(bfd);
}
static int handle_subversion_warning(Main *main)
{
if(main->minversionfile > BLENDER_VERSION ||
(main->minversionfile == BLENDER_VERSION &&
main->minsubversionfile > BLENDER_SUBVERSION)) {
char str[128];
BLI_snprintf(str, sizeof(str), "File written by newer Blender binary: %d.%d , expect loss of data!", main->minversionfile, main->minsubversionfile);
// XXX error(str);
}
return 1;
}
void BKE_userdef_free(void)
{
wmKeyMap *km;
wmKeyMapItem *kmi;
for(km=U.keymaps.first; km; km=km->next) {
for(kmi=km->items.first; kmi; kmi=kmi->next) {
if(kmi->properties) {
IDP_FreeProperty(kmi->properties);
MEM_freeN(kmi->properties);
}
if(kmi->ptr)
MEM_freeN(kmi->ptr);
}
BLI_freelistN(&km->items);
}
BLI_freelistN(&U.uistyles);
BLI_freelistN(&U.uifonts);
BLI_freelistN(&U.themes);
BLI_freelistN(&U.keymaps);
BLI_freelistN(&U.addons);
}
int BKE_read_file(bContext *C, const char *dir, ReportList *reports)
{
BlendFileData *bfd;
int retval= 1;
if(strstr(dir, BLENDER_STARTUP_FILE)==NULL) /* dont print user-pref loading */
printf("read blend: %s\n", dir);
bfd= BLO_read_from_file(dir, reports);
if (bfd) {
if(bfd->user) retval= 2;
if(0==handle_subversion_warning(bfd->main)) {
free_main(bfd->main);
MEM_freeN(bfd);
bfd= NULL;
retval= 0;
}
else
setup_app_data(C, bfd, dir); // frees BFD
}
else
BKE_reports_prependf(reports, "Loading %s failed: ", dir);
return (bfd?retval:0);
}
int BKE_read_file_from_memory(bContext *C, char* filebuf, int filelength, ReportList *reports)
{
BlendFileData *bfd;
bfd= BLO_read_from_memory(filebuf, filelength, reports);
if (bfd)
setup_app_data(C, bfd, "<memory2>");
else
BKE_reports_prepend(reports, "Loading failed: ");
return (bfd?1:0);
}
/* memfile is the undo buffer */
int 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)
setup_app_data(C, bfd, "<memory1>");
else
BKE_reports_prepend(reports, "Loading failed: ");
return (bfd?1:0);
}
/* ***************** testing for break ************* */
static void (*blender_test_break_cb)(void)= NULL;
void set_blender_test_break_cb(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.afbreek==1);
}
/* ***************** GLOBAL UNDO *************** */
#define UNDO_DISK 0
#define MAXUNDONAME 64
typedef struct UndoElem {
struct UndoElem *next, *prev;
char str[FILE_MAXDIR+FILE_MAXFILE];
char name[MAXUNDONAME];
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 doesnt crash with threaded previews going */
WM_jobs_stop_all(CTX_wm_manager(C));
BLI_strncpy(mainstr, G.main->name, sizeof(mainstr)); /* temporal store */
strcpy(mainstr, G.main->name); /* 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_load_update(G.main, FALSE);
}
return success;
}
/* name can be a dynamic string */
void BKE_write_undo(bContext *C, const char *name)
{
uintptr_t maxmem, totmem, memused;
int nr, success;
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_free_memfile(&uel->memfile);
MEM_freeN(uel);
}
/* make new */
curundo= uel= MEM_callocN(sizeof(UndoElem), "undo file");
strncpy(uel->name, name, MAXUNDONAME-1);
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_merge_memfile(&first->memfile, &first->next->memfile);
MEM_freeN(first);
}
}
/* disk save version */
if(UNDO_DISK) {
static int counter= 0;
char tstr[FILE_MAXDIR+FILE_MAXFILE];
char numstr[32];
/* calculate current filename */
counter++;
counter= counter % U.undosteps;
BLI_snprintf(numstr, sizeof(numstr), "%d.blend", counter);
BLI_make_file_string("/", tstr, btempdir, numstr);
success= BLO_write_file(CTX_data_main(C), tstr, G.fileflags, NULL, NULL);
BLI_strncpy(curundo->str, tstr, sizeof(curundo->str));
}
else {
MemFile *prevfile=NULL;
if(curundo->prev) prevfile= &(curundo->prev->memfile);
memused= MEM_get_memory_in_use();
success= 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_merge_memfile(&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.f & 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.f & G_DEBUG) printf("redo %s\n", curundo->name);
}
}
}
void BKE_reset_undo(void)
{
UndoElem *uel;
uel= undobase.first;
while(uel) {
BLO_free_memfile(&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)
{
UndoElem *uel;
int a=1;
for(uel= undobase.first; uel; uel= uel->next, a++) {
if(a==nr) break;
}
curundo= uel;
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;
for(uel= undobase.last; uel; uel= uel->prev)
if(strcmp(name, uel->name)==0)
break;
if(uel && uel->prev) {
curundo= uel->prev;
BKE_undo_step(C, 0);
}
}
/* name optional */
int BKE_undo_valid(const char *name)
{
if(name) {
UndoElem *uel;
for(uel= undobase.last; uel; uel= uel->prev)
if(strcmp(name, uel->name)==0)
break;
return uel && uel->prev;
}
return undobase.last != undobase.first;
}
char *BKE_undo_menu_string(void)
{
UndoElem *uel;
DynStr *ds= BLI_dynstr_new();
char *menu;
BLI_dynstr_append(ds, "Global Undo History %t");
for(uel= undobase.first; uel; uel= uel->next) {
BLI_dynstr_append(ds, "|");
BLI_dynstr_append(ds, uel->name);
}
menu= BLI_dynstr_get_cstring(ds);
BLI_dynstr_free(ds);
return menu;
}
/* saves quit.blend */
void BKE_undo_save_quit(void)
{
char str[FILE_MAXDIR+FILE_MAXFILE];
BLI_make_file_string("/", str, btempdir, "quit.blend");
BKE_undo_save(str);
}
void BKE_undo_save(char *fname)
{
UndoElem *uel;
MemFileChunk *chunk;
int file;
if( (U.uiflag & USER_GLOBALUNDO)==0) return;
uel= curundo;
if(uel==NULL) {
printf("No undo buffer to save recovery file\n");
return;
}
/* no undo state to save */
if(undobase.first==undobase.last) return;
file = open(fname, O_BINARY+O_WRONLY+O_CREAT+O_TRUNC, 0666);
if(file == -1) {
//XXX error("Unable to save %s, check you have permissions", str);
return;
}
chunk= uel->memfile.chunks.first;
while(chunk) {
if( write(file, chunk->buf, chunk->size) != chunk->size) break;
chunk= chunk->next;
}
close(file);
if(chunk) ; //XXX error("Unable to save %s, internal error", fname);
else printf("Saved session recovery to %s\n", fname);
}
/* sets curscene */
Main *BKE_undo_get_main(Scene **scene)
{
Main *mainp= NULL;
BlendFileData *bfd= BLO_read_from_memfile(G.main, G.main->name, &curundo->memfile, NULL);
if(bfd) {
mainp= bfd->main;
if(scene)
*scene= bfd->curscene;
MEM_freeN(bfd);
}
return mainp;
}
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