~siretart/ubuntu/utopic/blender/libav10

/*

 * ***** 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 _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 <errno.h>

#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 "DNA_windowmanager_types.h"

#include "BLI_blenlib.h"

#include "BLI_dynstr.h"

#include "BLI_utildefines.h"

#include "BLI_callbacks.h"

#include "IMB_imbuf.h"

#include "IMB_moviecache.h"

#include "BKE_blender.h"

#include "BKE_bpath.h"

#include "BKE_brush.h"

#include "BKE_context.h"

#include "BKE_depsgraph.h"

#include "BKE_displist.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 "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 */

	free_main(G.main);

	G.main = NULL;

	BKE_spacetypes_free();      /* after free main, it uses space callbacks */

	IMB_exit();

	BKE_images_exit();

	BKE_brush_system_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 = MEM_callocN(sizeof(Main), "initglobals");

	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);

#ifdef _WIN32

	G.windowstate = 0;

#endif

#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 */

	free_main(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_clean(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_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 *filepath)

{

	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);

	/* Free all render results, without this stale data gets displayed after loading files */

	if (mode != 'u') {

		RE_FreeAllRenderResults();

	}

	/* 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 */

		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;

		/* empty file, we add a scene to make Blender work */

		if (curscene == NULL) curscene = BKE_scene_add(bfd->main, "Empty");

		/* 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 */

		blo_lib_link_screen_restore(bfd->main, curscreen, curscene);

	}

	/* 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);

	sound_init_main(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, 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);

	}

	/* 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);

	}

	/* 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 == 0) {

		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 != CTX_data_scene(C))

						BKE_scene_set_background(G.main, win->screen->scene);

			}

		}

	}

	BKE_scene_set_background(G.main, CTX_data_scene(C));

	if (mode != 'u') {

		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;

	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);

	}

	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)) {

			free_main(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);

}

int BKE_read_file_from_memory(bContext *C, const void *filebuf, int filelength, ReportList *reports, int 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 ? 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) {

		/* remove the unused screens and wm */

		while (bfd->main->wm.first)

			BKE_libblock_free(&bfd->main->wm, bfd->main->wm.first);

		while (bfd->main->screen.first)

			BKE_libblock_free(&bfd->main->screen, bfd->main->screen.first);

		setup_app_data(C, bfd, "<memory1>");

	}

	else

		BKE_reports_prepend(reports, "Loading failed: ");

	return (bfd ? 1 : 0);

}

/* only read the userdef from a .blend */

int BKE_read_file_userdef(const char *filepath, ReportList *reports)

{

	BlendFileData *bfd;

	int retval = 0;

	bfd = BLO_read_from_file(filepath, reports);

	if (bfd->user) {

		retval = BKE_READ_FILE_OK_USERPREFS;

		/* only here free userdef themes... */

		BKE_userdef_free();

		U = *bfd->user;

		MEM_freeN(bfd->user);

	}

	free_main(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 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.is_break == TRUE);

}

/* ***************** 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_write_undo(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_free_memfile(&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;

	}