/**
 * \see #wm_file_write wraps #BLO_write_file in a similar way.
 */
int wm_homefile_write_exec(bContext *C, wmOperator *op)
{
	wmWindowManager *wm = CTX_wm_manager(C);
	wmWindow *win = CTX_wm_window(C);
	char filepath[FILE_MAX];
	int fileflags;

	BLI_callback_exec(G.main, NULL, BLI_CB_EVT_SAVE_PRE);

	/* check current window and close it if temp */
	if (win && win->screen->temp)
		wm_window_close(C, wm, win);
	
	/* update keymaps in user preferences */
	WM_keyconfig_update(wm);
	
	BLI_make_file_string("/", filepath, BKE_appdir_folder_id_create(BLENDER_USER_CONFIG, NULL), BLENDER_STARTUP_FILE);
	printf("trying to save homefile at %s ", filepath);
	
	ED_editors_flush_edits(C, false);

	/*  force save as regular blend file */
	fileflags = G.fileflags & ~(G_FILE_COMPRESS | G_FILE_AUTOPLAY | G_FILE_HISTORY);

	if (BLO_write_file(CTX_data_main(C), filepath, fileflags | G_FILE_USERPREFS, op->reports, NULL) == 0) {
		printf("fail\n");
		return OPERATOR_CANCELLED;
	}
	
	printf("ok\n");

	G.save_over = 0;

	BLI_callback_exec(G.main, NULL, BLI_CB_EVT_SAVE_POST);

	return OPERATOR_FINISHED;
}

static int flyEnd(bContext *C, FlyInfo *fly)
{
	wmWindow *win;
	RegionView3D *rv3d;

	if (fly->state == FLY_RUNNING)
		return OPERATOR_RUNNING_MODAL;

#ifdef NDOF_FLY_DEBUG
	puts("\n-- fly end --");
#endif

	win = CTX_wm_window(C);
	rv3d = fly->rv3d;

	WM_event_remove_timer(CTX_wm_manager(C), win, fly->timer);

	ED_region_draw_cb_exit(fly->ar->type, fly->draw_handle_pixel);

	ED_view3d_cameracontrol_release(fly->v3d_camera_control, fly->state == FLY_CANCEL);

	rv3d->rflag &= ~RV3D_NAVIGATING;

#ifdef WITH_INPUT_NDOF
	if (fly->ndof)
		MEM_freeN(fly->ndof);
#endif

	if (fly->state == FLY_CONFIRM) {
		MEM_freeN(fly);
		return OPERATOR_FINISHED;
	}

	MEM_freeN(fly);
	return OPERATOR_CANCELLED;
}

static void view_zoom_init(bContext *C, wmOperator *op, const wmEvent *event)
{
	SpaceClip *sc = CTX_wm_space_clip(C);
	ARegion *ar = CTX_wm_region(C);
	ViewZoomData *vpd;

	op->customdata = vpd = MEM_callocN(sizeof(ViewZoomData), "ClipViewZoomData");
	WM_cursor_modal_set(CTX_wm_window(C), BC_NSEW_SCROLLCURSOR);

	if (U.viewzoom == USER_ZOOM_CONT) {
		/* needs a timer to continue redrawing */
		vpd->timer = WM_event_add_timer(CTX_wm_manager(C), CTX_wm_window(C), TIMER, 0.01f);
		vpd->timer_lastdraw = PIL_check_seconds_timer();
	}

	vpd->x = event->x;
	vpd->y = event->y;
	vpd->zoom = sc->zoom;
	vpd->event_type = event->type;

	ED_clip_mouse_pos(sc, ar, event->mval, vpd->location);

	WM_event_add_modal_handler(C, op);
}

static int node_group_edit_exec(bContext *C, wmOperator *op)
{
	SpaceNode *snode = CTX_wm_space_node(C);
	const char *node_idname = group_node_idname(C);
	bNode *gnode;
	const bool exit = RNA_boolean_get(op->ptr, "exit");
	
	ED_preview_kill_jobs(CTX_wm_manager(C), CTX_data_main(C));
	
	gnode = node_group_get_active(C, node_idname);
	
	if (gnode && !exit) {
		bNodeTree *ngroup = (bNodeTree *)gnode->id;
		
		if (ngroup)
			ED_node_tree_push(snode, ngroup, gnode);
	}
	else
		ED_node_tree_pop(snode);
	
	WM_event_add_notifier(C, NC_SCENE | ND_NODES, NULL);
	
	return OPERATOR_FINISHED;
}

static void renamebutton_cb(bContext *C, void *UNUSED(arg1), char *oldname)
{
	char newname[FILE_MAX + 12];
	char orgname[FILE_MAX + 12];
	char filename[FILE_MAX + 12];
	wmWindowManager *wm = CTX_wm_manager(C);
	SpaceFile *sfile = (SpaceFile *)CTX_wm_space_data(C);
	ARegion *ar = CTX_wm_region(C);

	BLI_make_file_string(G.main->name, orgname, sfile->params->dir, oldname);
	BLI_strncpy(filename, sfile->params->renameedit, sizeof(filename));
	BLI_filename_make_safe(filename);
	BLI_make_file_string(G.main->name, newname, sfile->params->dir, filename);

	if (!STREQ(orgname, newname)) {
		if (!BLI_exists(newname)) {
			BLI_rename(orgname, newname);
			/* to make sure we show what is on disk */
			ED_fileselect_clear(wm, sfile);
		}

		ED_region_tag_redraw(ar);
	}
}

void ED_preview_kill_jobs(const struct bContext *C)
{
	wmWindowManager *wm= CTX_wm_manager(C);
	if(wm)
		WM_jobs_kill(wm, NULL, common_preview_startjob);
}

/**
 * \note doesn't run exit() call #WM_exit() for that.
 */
void WM_exit_ext(bContext *C, const bool do_python)
{
	wmWindowManager *wm = C ? CTX_wm_manager(C) : NULL;

	/* first wrap up running stuff, we assume only the active WM is running */
	/* modal handlers are on window level freed, others too? */
	/* note; same code copied in wm_files.c */
	if (C && wm) {
		wmWindow *win;

		if (!G.background) {
			struct MemFile *undo_memfile = wm->undo_stack ? ED_undosys_stack_memfile_get_active(wm->undo_stack) : NULL;
			if ((U.uiflag2 & USER_KEEP_SESSION) || (undo_memfile != NULL)) {
				/* save the undo state as quit.blend */
				char filename[FILE_MAX];
				bool has_edited;
				int fileflags = G.fileflags & ~(G_FILE_COMPRESS | G_FILE_AUTOPLAY | G_FILE_HISTORY);

				BLI_make_file_string("/", filename, BKE_tempdir_base(), BLENDER_QUIT_FILE);

				has_edited = ED_editors_flush_edits(C, false);

				if ((has_edited && BLO_write_file(CTX_data_main(C), filename, fileflags, NULL, NULL)) ||
				    (undo_memfile && BLO_memfile_write_file(undo_memfile, filename)))
				{
					printf("Saved session recovery to '%s'\n", filename);
				}
			}
		}

		WM_jobs_kill_all(wm);

		for (win = wm->windows.first; win; win = win->next) {

			CTX_wm_window_set(C, win);  /* needed by operator close callbacks */
			WM_event_remove_handlers(C, &win->handlers);
			WM_event_remove_handlers(C, &win->modalhandlers);
			ED_screen_exit(C, win, win->screen);
		}
	}

	BKE_addon_pref_type_free();
	wm_operatortype_free();
	wm_dropbox_free();
	WM_menutype_free();
	WM_uilisttype_free();

	/* all non-screen and non-space stuff editors did, like editmode */
	if (C)
		ED_editors_exit(C);

	ED_undosys_type_free();

//	XXX
//	BIF_GlobalReebFree();
//	BIF_freeRetarget();
	BIF_freeTemplates(C);

	free_openrecent();

	BKE_mball_cubeTable_free();

	/* render code might still access databases */
	RE_FreeAllRender();
	RE_engines_exit();

	ED_preview_free_dbase();  /* frees a Main dbase, before BKE_blender_free! */

	if (C && wm)
		wm_free_reports(C);  /* before BKE_blender_free! - since the ListBases get freed there */

	BKE_sequencer_free_clipboard(); /* sequencer.c */
	BKE_tracking_clipboard_free();
	BKE_mask_clipboard_free();
	BKE_vfont_clipboard_free();

#ifdef WITH_COMPOSITOR
	COM_deinitialize();
#endif

	BKE_blender_free();  /* blender.c, does entire library and spacetypes */
//	free_matcopybuf();
	ANIM_fcurves_copybuf_free();
	ANIM_drivers_copybuf_free();
	ANIM_driver_vars_copybuf_free();
	ANIM_fmodifiers_copybuf_free();
	ED_gpencil_anim_copybuf_free();
	ED_gpencil_strokes_copybuf_free();
	BKE_node_clipboard_clear();

	BLF_exit();

#ifdef WITH_INTERNATIONAL
	BLF_free_unifont();
	BLF_free_unifont_mono();
	BLT_lang_free();
#endif
//.........这里部分代码省略.........

bool WM_init_game(bContext *C)
{
	wmWindowManager *wm = CTX_wm_manager(C);
	wmWindow *win;

	ScrArea *sa;
	ARegion *ar = NULL;

	Scene *scene = CTX_data_scene(C);

	if (!scene) {
		/* XXX, this should not be needed. */
		Main *bmain = CTX_data_main(C);
		scene = bmain->scene.first;
	}

	win = wm->windows.first;

	/* first to get a valid window */
	if (win)
		CTX_wm_window_set(C, win);

	sa = BKE_screen_find_big_area(CTX_wm_screen(C), SPACE_VIEW3D, 0);
	ar = BKE_area_find_region_type(sa, RGN_TYPE_WINDOW);

	/* if we have a valid 3D view */
	if (sa && ar) {
		ARegion *arhide;

		CTX_wm_area_set(C, sa);
		CTX_wm_region_set(C, ar);

		/* disable quad view */
		if (ar->alignment == RGN_ALIGN_QSPLIT)
			WM_operator_name_call(C, "SCREEN_OT_region_quadview", WM_OP_EXEC_DEFAULT, NULL);

		/* toolbox, properties panel and header are hidden */
		for (arhide = sa->regionbase.first; arhide; arhide = arhide->next) {
			if (arhide->regiontype != RGN_TYPE_WINDOW) {
				if (!(arhide->flag & RGN_FLAG_HIDDEN)) {
					ED_region_toggle_hidden(C, arhide);
				}
			}
		}

		/* full screen the area */
		if (!sa->full) {
			ED_screen_state_toggle(C, win, sa, SCREENMAXIMIZED);
		}

		/* Fullscreen */
		if ((scene->gm.playerflag & GAME_PLAYER_FULLSCREEN)) {
			WM_operator_name_call(C, "WM_OT_window_fullscreen_toggle", WM_OP_EXEC_DEFAULT, NULL);
			wm_get_screensize(&ar->winrct.xmax, &ar->winrct.ymax);
			ar->winx = ar->winrct.xmax + 1;
			ar->winy = ar->winrct.ymax + 1;
		}
		else {
			GHOST_RectangleHandle rect = GHOST_GetClientBounds(win->ghostwin);
			ar->winrct.ymax = GHOST_GetHeightRectangle(rect);
			ar->winrct.xmax = GHOST_GetWidthRectangle(rect);
			ar->winx = ar->winrct.xmax + 1;
			ar->winy = ar->winrct.ymax + 1;
			GHOST_DisposeRectangle(rect);
		}

		WM_operator_name_call(C, "VIEW3D_OT_game_start", WM_OP_EXEC_DEFAULT, NULL);

		BKE_sound_exit();

		return true;
	}
	else {
		ReportTimerInfo *rti;

		BKE_report(&wm->reports, RPT_ERROR, "No valid 3D View found, game auto start is not possible");

		/* After adding the report to the global list, reset the report timer. */
		WM_event_remove_timer(wm, NULL, wm->reports.reporttimer);

		/* Records time since last report was added */
		wm->reports.reporttimer = WM_event_add_timer(wm, CTX_wm_window(C), TIMER, 0.02);

		rti = MEM_callocN(sizeof(ReportTimerInfo), "ReportTimerInfo");
		wm->reports.reporttimer->customdata = rti;

		return false;
	}
}

//.........这里部分代码省略.........

#ifdef WITH_INPUT_NDOF
		/* sets 3D mouse deadzone */
		WM_ndof_deadzone_set(U.ndof_deadzone);
#endif

		GPU_init();

		GPU_set_mipmap(G_MAIN, !(U.gameflags & USER_DISABLE_MIPMAP));
		GPU_set_linear_mipmap(true);
		GPU_set_anisotropic(G_MAIN, U.anisotropic_filter);
		GPU_set_gpu_mipmapping(G_MAIN, U.use_gpu_mipmap);

#ifdef WITH_OPENSUBDIV
		BKE_subsurf_osd_init();
#endif

		UI_init();
	}
	else {
		/* Note: Currently only inits icons, which we now want in background mode too
		 * (scripts could use those in background processing...).
		 * In case we do more later, we may need to pass a 'background' flag.
		 * Called from 'UI_init' above */
		BKE_icons_init(1);
	}


	ED_spacemacros_init();

	/* note: there is a bug where python needs initializing before loading the
	 * startup.blend because it may contain PyDrivers. It also needs to be after
	 * initializing space types and other internal data.
	 *
	 * However cant redo this at the moment. Solution is to load python
	 * before wm_homefile_read() or make py-drivers check if python is running.
	 * Will try fix when the crash can be repeated. - campbell. */

#ifdef WITH_PYTHON
	BPY_context_set(C); /* necessary evil */
	BPY_python_start(argc, argv);

	BPY_python_reset(C);
#else
	(void)argc; /* unused */
	(void)argv; /* unused */
#endif

	if (!G.background && !wm_start_with_console)
		GHOST_toggleConsole(3);

	clear_matcopybuf();
	ED_render_clear_mtex_copybuf();

	// glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

	wm_history_file_read();

	/* allow a path of "", this is what happens when making a new file */
#if 0
	if (BKE_main_blendfile_path_from_global()[0] == '\0')
		BLI_make_file_string("/", G_MAIN->name, BKE_appdir_folder_default(), "untitled.blend");
#endif

	BLI_strncpy(G.lib, BKE_main_blendfile_path_from_global(), sizeof(G.lib));

#ifdef WITH_COMPOSITOR
	if (1) {
		extern void *COM_linker_hack;
		COM_linker_hack = COM_execute;
	}
#endif

	/* load last session, uses regular file reading so it has to be in end (after init py etc) */
	if (U.uiflag2 & USER_KEEP_SESSION) {
		/* calling WM_recover_last_session(C, NULL) has been moved to creator.c */
		/* that prevents loading both the kept session, and the file on the command line */
	}
	else {
		Main *bmain = CTX_data_main(C);
		/* note, logic here is from wm_file_read_post,
		 * call functions that depend on Python being initialized. */

		/* normally 'wm_homefile_read' will do this,
		 * however python is not initialized when called from this function.
		 *
		 * unlikely any handlers are set but its possible,
		 * note that recovering the last session does its own callbacks. */
		CTX_wm_window_set(C, CTX_wm_manager(C)->windows.first);

		BLI_callback_exec(bmain, NULL, BLI_CB_EVT_VERSION_UPDATE);
		BLI_callback_exec(bmain, NULL, BLI_CB_EVT_LOAD_POST);

		wm_file_read_report(C, bmain);

		if (!G.background) {
			CTX_wm_window_set(C, NULL);
		}
	}
}

/**
 * Logic shared between #WM_file_read & #wm_homefile_read,
 * updates to make after reading a file.
 */
static void wm_file_read_post(bContext *C, bool is_startup_file)
{
	bool addons_loaded = false;
	wmWindowManager *wm = CTX_wm_manager(C);

	if (!G.background) {
		/* remove windows which failed to be added via WM_check */
		wm_window_ghostwindows_remove_invalid(C, wm);
	}

	CTX_wm_window_set(C, wm->windows.first);

	ED_editors_init(C);
	DAG_on_visible_update(CTX_data_main(C), true);

#ifdef WITH_PYTHON
	if (is_startup_file) {
		/* possible python hasn't been initialized */
		if (CTX_py_init_get(C)) {
			/* sync addons, these may have changed from the defaults */
			BPY_execute_string(C, "__import__('addon_utils').reset_all()");

			BPY_python_reset(C);
			addons_loaded = true;
		}
	}
	else {
		/* run any texts that were loaded in and flagged as modules */
		BPY_python_reset(C);
		addons_loaded = true;
	}
#else
	UNUSED_VARS(is_startup_file);
#endif  /* WITH_PYTHON */

	WM_operatortype_last_properties_clear_all();

	/* important to do before NULL'ing the context */
	BLI_callback_exec(CTX_data_main(C), NULL, BLI_CB_EVT_VERSION_UPDATE);
	BLI_callback_exec(CTX_data_main(C), NULL, BLI_CB_EVT_LOAD_POST);

	/* would otherwise be handled by event loop */
	if (G.background) {
		Main *bmain = CTX_data_main(C);
		BKE_scene_update_tagged(bmain->eval_ctx, bmain, CTX_data_scene(C));
	}

	WM_event_add_notifier(C, NC_WM | ND_FILEREAD, NULL);

	/* report any errors.
	 * currently disabled if addons aren't yet loaded */
	if (addons_loaded) {
		wm_file_read_report(C);
	}

	if (!G.background) {
		/* in background mode this makes it hard to load
		 * a blend file and do anything since the screen
		 * won't be set to a valid value again */
		CTX_wm_window_set(C, NULL); /* exits queues */
	}

	if (!G.background) {
//		undo_editmode_clear();
		BKE_undo_reset();
		BKE_undo_write(C, "original");  /* save current state */
	}
}

int wm_stereo3d_set_exec(bContext *C, wmOperator *op)
{
	wmWindowManager *wm = CTX_wm_manager(C);
	wmWindow *win_src = CTX_wm_window(C);
	wmWindow *win_dst = NULL;
	const bool is_fullscreen = WM_window_is_fullscreen(win_src);
	char prev_display_mode = win_src->stereo3d_format->display_mode;
	Stereo3dData *s3dd;
	bool ok = true;

	if (G.background)
		return OPERATOR_CANCELLED;

	if (op->customdata == NULL) {
		/* no invoke means we need to set the operator properties here */
		wm_stereo3d_set_init(C, op);
		wm_stereo3d_set_properties(C, op);
	}

	s3dd = op->customdata;
	*win_src->stereo3d_format = s3dd->stereo3d_format;

	if (prev_display_mode == S3D_DISPLAY_PAGEFLIP &&
	    prev_display_mode != win_src->stereo3d_format->display_mode)
	{
		/* in case the hardward supports pageflip but not the display */
		if ((win_dst = wm_window_copy_test(C, win_src))) {
			/* pass */
		}
		else {
			BKE_report(op->reports, RPT_ERROR,
			           "Failed to create a window without quad-buffer support, you may experience flickering");
			ok = false;
		}
	}
	else if (win_src->stereo3d_format->display_mode == S3D_DISPLAY_PAGEFLIP) {
		/* ED_screen_duplicate() can't handle other cases yet T44688 */
		if (win_src->screen->state != SCREENNORMAL) {
			BKE_report(op->reports, RPT_ERROR,
			           "Failed to switch to Time Sequential mode when in fullscreen");
			ok = false;
		}
		/* pageflip requires a new window to be created with the proper OS flags */
		else if ((win_dst = wm_window_copy_test(C, win_src))) {
			if (wm_stereo3d_quadbuffer_supported()) {
				BKE_report(op->reports, RPT_INFO, "Quad-buffer window successfully created");
			}
			else {
				wm_window_close(C, wm, win_dst);
				win_dst = NULL;
				BKE_report(op->reports, RPT_ERROR, "Quad-buffer not supported by the system");
				ok = false;
			}
		}
		else {
			BKE_report(op->reports, RPT_ERROR,
			           "Failed to create a window compatible with the time sequential display method");
			ok = false;
		}
	}

	if (wm_stereo3d_is_fullscreen_required(s3dd->stereo3d_format.display_mode)) {
		if (!is_fullscreen) {
			BKE_report(op->reports, RPT_INFO, "Stereo 3D Mode requires the window to be fullscreen");
		}
	}

	MEM_freeN(op->customdata);

	if (ok) {
		if (win_dst) {
			wm_window_close(C, wm, win_src);
		}

		WM_event_add_notifier(C, NC_WINDOW, NULL);
		return OPERATOR_FINISHED;
	}
	else {
		/* without this, the popup won't be freed freed properly T44688 */
		CTX_wm_window_set(C, win_src);
		win_src->stereo3d_format->display_mode = prev_display_mode;
		return OPERATOR_CANCELLED;
	}
}

/* only meant for timer usage */
static int file_smoothscroll_invoke(bContext *C, wmOperator *UNUSED(op), const wmEvent *event)
{
	ScrArea *sa = CTX_wm_area(C);
	SpaceFile *sfile = CTX_wm_space_file(C);
	ARegion *ar, *oldar = CTX_wm_region(C);
	int offset;
	int numfiles, numfiles_layout;
	int edit_idx = 0;
	int i;

	/* escape if not our timer */
	if (sfile->smoothscroll_timer == NULL || sfile->smoothscroll_timer != event->customdata)
		return OPERATOR_PASS_THROUGH;
	
	numfiles = filelist_numfiles(sfile->files);

	/* check if we are editing a name */
	for (i = 0; i < numfiles; ++i) {
		if (filelist_is_selected(sfile->files, i, CHECK_ALL) ) {
			edit_idx = i;
			break;
		}
	}

	/* if we are not editing, we are done */
	if (0 == edit_idx) {
		WM_event_remove_timer(CTX_wm_manager(C), CTX_wm_window(C), sfile->smoothscroll_timer);
		sfile->smoothscroll_timer = NULL;
		return OPERATOR_PASS_THROUGH;
	}

	/* we need the correct area for scrolling */
	ar = BKE_area_find_region_type(sa, RGN_TYPE_WINDOW);
	if (!ar || ar->regiontype != RGN_TYPE_WINDOW) {
		WM_event_remove_timer(CTX_wm_manager(C), CTX_wm_window(C), sfile->smoothscroll_timer);
		sfile->smoothscroll_timer = NULL;
		return OPERATOR_PASS_THROUGH;
	}

	offset = ED_fileselect_layout_offset(sfile->layout, (int)ar->v2d.cur.xmin, (int)-ar->v2d.cur.ymax);
	if (offset < 0) offset = 0;

	/* scroll offset is the first file in the row/column we are editing in */
	if (sfile->scroll_offset == 0) {
		if (sfile->layout->flag & FILE_LAYOUT_HOR) {
			sfile->scroll_offset = (edit_idx / sfile->layout->rows) * sfile->layout->rows;
			if (sfile->scroll_offset <= offset) sfile->scroll_offset -= sfile->layout->rows;
		}
		else {
			sfile->scroll_offset = (edit_idx / sfile->layout->columns) * sfile->layout->columns;
			if (sfile->scroll_offset <= offset) sfile->scroll_offset -= sfile->layout->columns;
		}
	}
	
	numfiles_layout = ED_fileselect_layout_numfiles(sfile->layout, ar);
	
	/* check if we have reached our final scroll position */
	if ( (sfile->scroll_offset >= offset) && (sfile->scroll_offset < offset + numfiles_layout) ) {
		WM_event_remove_timer(CTX_wm_manager(C), CTX_wm_window(C), sfile->smoothscroll_timer);
		sfile->smoothscroll_timer = NULL;
		return OPERATOR_FINISHED;
	}

	/* temporarily set context to the main window region, 
	 * so the scroll operators work */
	CTX_wm_region_set(C, ar);
	
	/* scroll one step in the desired direction */
	if (sfile->scroll_offset < offset) {
		if (sfile->layout->flag & FILE_LAYOUT_HOR) {
			WM_operator_name_call(C, "VIEW2D_OT_scroll_left", 0, NULL);
		}
		else {
			WM_operator_name_call(C, "VIEW2D_OT_scroll_up", 0, NULL);
		}
		
	}
	else {
		if (sfile->layout->flag & FILE_LAYOUT_HOR) {
			WM_operator_name_call(C, "VIEW2D_OT_scroll_right", 0, NULL);
		}
		else {
			WM_operator_name_call(C, "VIEW2D_OT_scroll_down", 0, NULL);
		}
	}
	
	ED_region_tag_redraw(ar);
	
	/* and restore context */
	CTX_wm_region_set(C, oldar);
	
	return OPERATOR_FINISHED;
}

/* draw grease-pencil sketches to specified 2d-view that uses ibuf corrections */
void ED_gpencil_draw_2dimage(const bContext *C)
{
	wmWindowManager *wm = CTX_wm_manager(C);
	ScrArea *sa = CTX_wm_area(C);
	ARegion *ar = CTX_wm_region(C);
	Scene *scene = CTX_data_scene(C);
	bGPdata *gpd;
	int offsx, offsy, sizex, sizey;
	int dflag = GP_DRAWDATA_NOSTATUS;
	
	gpd = ED_gpencil_data_get_active(C); // XXX
	if (gpd == NULL) return;
	
	/* calculate rect */
	switch (sa->spacetype) {
		case SPACE_IMAGE: /* image */
		case SPACE_CLIP: /* clip */
		{
		
			/* just draw using standard scaling (settings here are currently ignored anyways) */
			/* FIXME: the opengl poly-strokes don't draw at right thickness when done this way, so disabled */
			offsx = 0;
			offsy = 0;
			sizex = ar->winx;
			sizey = ar->winy;
			
			wmOrtho2(ar->v2d.cur.xmin, ar->v2d.cur.xmax, ar->v2d.cur.ymin, ar->v2d.cur.ymax);
			
			dflag |= GP_DRAWDATA_ONLYV2D | GP_DRAWDATA_IEDITHACK;
			break;
		}
		case SPACE_SEQ: /* sequence */
		{
			/* just draw using standard scaling (settings here are currently ignored anyways) */
			offsx = 0;
			offsy = 0;
			sizex = ar->winx;
			sizey = ar->winy;
			
			/* NOTE: I2D was used in 2.4x, but the old settings for that have been deprecated
			 * and everything moved to standard View2d
			 */
			dflag |= GP_DRAWDATA_ONLYV2D;
			break;
		}
		default: /* for spacetype not yet handled */
			offsx = 0;
			offsy = 0;
			sizex = ar->winx;
			sizey = ar->winy;
			
			dflag |= GP_DRAWDATA_ONLYI2D;
			break;
	}
	
	if (ED_screen_animation_playing(wm)) {
		/* don't show onionskins during animation playback/scrub (i.e. it obscures the poses)
		 * OpenGL Renders (i.e. final output), or depth buffer (i.e. not real strokes)
		 */
		dflag |= GP_DRAWDATA_NO_ONIONS;
	}
	
	
	/* draw it! */
	gp_draw_data_all(scene, gpd, offsx, offsy, sizex, sizey, CFRA, dflag, sa->spacetype);
}

static int update_reports_display_invoke(bContext *C, wmOperator *UNUSED(op), const wmEvent *event)
{
	wmWindowManager *wm = CTX_wm_manager(C);
	ReportList *reports = CTX_wm_reports(C);
	Report *report;
	ReportTimerInfo *rti;
	float progress = 0.0, color_progress = 0.0;
	float neutral_col[3] = {0.35, 0.35, 0.35};
	float neutral_gray = 0.6;
	float timeout = 0.0, color_timeout = 0.0;
	int send_note = 0;
	
	/* escape if not our timer */
	if ((reports->reporttimer == NULL) ||
	    (reports->reporttimer != event->customdata) ||
	    ((report = BKE_reports_last_displayable(reports)) == NULL) /* may have been deleted */
	    )
	{
		return OPERATOR_PASS_THROUGH;
	}

	rti = (ReportTimerInfo *)reports->reporttimer->customdata;
	
	timeout = (report->type & RPT_ERROR_ALL) ? ERROR_TIMEOUT : INFO_TIMEOUT;
	color_timeout = (report->type & RPT_ERROR_ALL) ? ERROR_COLOR_TIMEOUT : INFO_COLOR_TIMEOUT;
	
	/* clear the report display after timeout */
	if ((float)reports->reporttimer->duration > timeout) {
		WM_event_remove_timer(wm, NULL, reports->reporttimer);
		reports->reporttimer = NULL;
		
		WM_event_add_notifier(C, NC_SPACE | ND_SPACE_INFO, NULL);
		
		return (OPERATOR_FINISHED | OPERATOR_PASS_THROUGH);
	}

	if (rti->widthfac == 0.0f) {
		/* initialize colors based on report type */
		if (report->type & RPT_ERROR_ALL) {
			rti->col[0] = 1.0;
			rti->col[1] = 0.2;
			rti->col[2] = 0.0;
		}
		else if (report->type & RPT_WARNING_ALL) {
			rti->col[0] = 1.0;
			rti->col[1] = 1.0;
			rti->col[2] = 0.0;
		}
		else if (report->type & RPT_INFO_ALL) {
			rti->col[0] = 0.3;
			rti->col[1] = 0.45;
			rti->col[2] = 0.7;
		}
		rti->grayscale = 0.75;
		rti->widthfac = 1.0;
	}
	
	progress = (float)reports->reporttimer->duration / timeout;
	color_progress = (float)reports->reporttimer->duration / color_timeout;
	
	/* save us from too many draws */
	if (color_progress <= 1.0f) {
		send_note = 1;
		
		/* fade colors out sharply according to progress through fade-out duration */
		interp_v3_v3v3(rti->col, rti->col, neutral_col, color_progress);
		rti->grayscale = interpf(neutral_gray, rti->grayscale, color_progress);
	}

	/* collapse report at end of timeout */
	if (progress * timeout > timeout - COLLAPSE_TIMEOUT) {
		rti->widthfac = (progress * timeout - (timeout - COLLAPSE_TIMEOUT)) / COLLAPSE_TIMEOUT;
		rti->widthfac = 1.0f - rti->widthfac;
		send_note = 1;
	}
	
	if (send_note) {
		WM_event_add_notifier(C, NC_SPACE | ND_SPACE_INFO, NULL);
	}
	
	return (OPERATOR_FINISHED | OPERATOR_PASS_THROUGH);
}

static bool initWalkInfo(bContext *C, WalkInfo *walk, wmOperator *op)
{
	wmWindow *win = CTX_wm_window(C);

	walk->rv3d = CTX_wm_region_view3d(C);
	walk->v3d = CTX_wm_view3d(C);
	walk->ar = CTX_wm_region(C);
	walk->scene = CTX_data_scene(C);

#ifdef NDOF_WALK_DEBUG
	puts("\n-- walk begin --");
#endif

	/* sanity check: for rare but possible case (if lib-linking the camera fails) */
	if ((walk->rv3d->persp == RV3D_CAMOB) && (walk->v3d->camera == NULL)) {
		walk->rv3d->persp = RV3D_PERSP;
	}

	if (walk->rv3d->persp == RV3D_CAMOB && walk->v3d->camera->id.lib) {
		BKE_report(op->reports, RPT_ERROR, "Cannot navigate a camera from an external library");
		return false;
	}

	if (ED_view3d_offset_lock_check(walk->v3d, walk->rv3d)) {
		BKE_report(op->reports, RPT_ERROR, "Cannot navigate when the view offset is locked");
		return false;
	}

	if (walk->rv3d->persp == RV3D_CAMOB && walk->v3d->camera->constraints.first) {
		BKE_report(op->reports, RPT_ERROR, "Cannot navigate an object with constraints");
		return false;
	}

	walk->state = WALK_RUNNING;

	if (fabsf(U.walk_navigation.walk_speed - userdef_speed) > 0.1f) {
		base_speed = U.walk_navigation.walk_speed;
		userdef_speed = U.walk_navigation.walk_speed;
	}

	walk->speed = 0.0f;
	walk->is_fast = false;
	walk->is_slow = false;
	walk->grid = (walk->scene->unit.system == USER_UNIT_NONE) ? 1.f : 1.f / walk->scene->unit.scale_length;

	/* user preference settings */
	walk->teleport.duration = U.walk_navigation.teleport_time;
	walk->mouse_speed = U.walk_navigation.mouse_speed;

	if ((U.walk_navigation.flag & USER_WALK_GRAVITY))
		walk_navigation_mode_set(C, op, walk, WALK_MODE_GRAVITY);
	else
		walk_navigation_mode_set(C, op, walk, WALK_MODE_FREE);

	walk->view_height = U.walk_navigation.view_height;
	walk->jump_height = U.walk_navigation.jump_height;
	walk->speed = U.walk_navigation.walk_speed;
	walk->speed_factor = U.walk_navigation.walk_speed_factor;

	walk->gravity_state = WALK_GRAVITY_STATE_OFF;

	if ((walk->scene->physics_settings.flag & PHYS_GLOBAL_GRAVITY)) {
		walk->gravity = fabsf(walk->scene->physics_settings.gravity[2]);
	}
	else {
		walk->gravity = 9.80668f; /* m/s2 */
	}

	walk->is_reversed = ((U.walk_navigation.flag & USER_WALK_MOUSE_REVERSE) != 0);

#ifdef USE_TABLET_SUPPORT
	walk->is_cursor_first = true;

	walk->is_cursor_absolute = false;
#endif

	walk->active_directions = 0;

#ifdef NDOF_WALK_DRAW_TOOMUCH
	walk->redraw = 1;
#endif
	zero_v3(walk->dvec_prev);

	walk->timer = WM_event_add_timer(CTX_wm_manager(C), win, TIMER, 0.01f);

	walk->ndof = NULL;

	walk->time_lastdraw = PIL_check_seconds_timer();

	walk->draw_handle_pixel = ED_region_draw_cb_activate(walk->ar->type, drawWalkPixel, walk, REGION_DRAW_POST_PIXEL);

	walk->rv3d->rflag |= RV3D_NAVIGATING;


	walk->v3d_camera_control = ED_view3d_cameracontrol_acquire(
	        walk->scene, walk->v3d, walk->rv3d,
	        (U.uiflag & USER_CAM_LOCK_NO_PARENT) == 0);

	/* center the mouse */
	walk->center_mval[0] = walk->ar->winx * 0.5f;
//.........这里部分代码省略.........

static int load_file(int UNUSED(argc), const char **argv, void *data)
{
	bContext *C = data;

	/* Make the path absolute because its needed for relative linked blends to be found */
	char filename[FILE_MAX];

	/* note, we could skip these, but so far we always tried to load these files */
	if (argv[0][0] == '-') {
		fprintf(stderr, "unknown argument, loading as file: %s\n", argv[0]);
	}

	BLI_strncpy(filename, argv[0], sizeof(filename));
	BLI_path_cwd(filename);

	if (G.background) {
		int retval = BKE_read_file(C, filename, NULL);

		/* we successfully loaded a blend file, get sure that
		 * pointcache works */
		if (retval != BKE_READ_FILE_FAIL) {
			wmWindowManager *wm = CTX_wm_manager(C);

			/* special case, 2.4x files */
			if (wm == NULL && CTX_data_main(C)->wm.first == NULL) {
				extern void wm_add_default(bContext *C);

				/* wm_add_default() needs the screen to be set. */
				CTX_wm_screen_set(C, CTX_data_main(C)->screen.first);
				wm_add_default(C);
			}

			CTX_wm_manager_set(C, NULL); /* remove wm to force check */
			WM_check(C);
			G.relbase_valid = 1;
			if (CTX_wm_manager(C) == NULL) CTX_wm_manager_set(C, wm);  /* reset wm */

			DAG_on_visible_update(CTX_data_main(C), TRUE);
		}
		else {
			/* failed to load file, stop processing arguments */
			return -1;
		}

		/* WM_file_read() runs normally but since we're in background mode do here */
#ifdef WITH_PYTHON
		/* run any texts that were loaded in and flagged as modules */
		BPY_python_reset(C);
#endif

		/* happens for the UI on file reading too (huh? (ton))*/
		// XXX		BKE_reset_undo();
		//			BKE_write_undo("original");	/* save current state */
	}
	else {
		/* we are not running in background mode here, but start blender in UI mode with
		 * a file - this should do everything a 'load file' does */
		ReportList reports;
		BKE_reports_init(&reports, RPT_PRINT);
		WM_file_autoexec_init(filename);
		WM_file_read(C, filename, &reports);
		BKE_reports_clear(&reports);
	}

	G.file_loaded = 1;

	return 0;
}

/* using context, starts job */
static int screen_render_invoke(bContext *C, wmOperator *op, const wmEvent *event)
{
	/* new render clears all callbacks */
	Main *mainp;
	Scene *scene = CTX_data_scene(C);
	SceneRenderLayer *srl = NULL;
	View3D *v3d = CTX_wm_view3d(C);
	Render *re;
	wmJob *wm_job;
	RenderJob *rj;
	Image *ima;
	int jobflag;
	const short is_animation = RNA_boolean_get(op->ptr, "animation");
	const short is_write_still = RNA_boolean_get(op->ptr, "write_still");
	struct Object *camera_override = v3d ? V3D_CAMERA_LOCAL(v3d) : NULL;
	const char *name;
	Object *active_object = CTX_data_active_object(C);
	
	/* only one render job at a time */
	if (WM_jobs_test(CTX_wm_manager(C), scene, WM_JOB_TYPE_RENDER))
		return OPERATOR_CANCELLED;

	if (!RE_is_rendering_allowed(scene, camera_override, op->reports)) {
		return OPERATOR_CANCELLED;
	}

	if (!is_animation && is_write_still && BKE_imtype_is_movie(scene->r.im_format.imtype)) {
		BKE_report(op->reports, RPT_ERROR, "Cannot write a single file with an animation format selected");
		return OPERATOR_CANCELLED;
	}
	
	/* stop all running jobs, except screen one. currently previews frustrate Render */
	WM_jobs_kill_all_except(CTX_wm_manager(C), CTX_wm_screen(C));

	/* get main */
	if (G.debug_value == 101) {
		/* thread-safety experiment, copy main from the undo buffer */
		mainp = BKE_undo_get_main(&scene);
	}
	else
		mainp = CTX_data_main(C);

	/* cancel animation playback */
	if (ED_screen_animation_playing(CTX_wm_manager(C)))
		ED_screen_animation_play(C, 0, 0);
	
	/* handle UI stuff */
	WM_cursor_wait(1);

	/* flush multires changes (for sculpt) */
	multires_force_render_update(active_object);

	/* flush changes from dynamic topology sculpt */
	sculptsession_bm_to_me_for_render(active_object);

	/* cleanup sequencer caches before starting user triggered render.
	 * otherwise, invalidated cache entries can make their way into
	 * the output rendering. We can't put that into RE_BlenderFrame,
	 * since sequence rendering can call that recursively... (peter) */
	BKE_sequencer_cache_cleanup();

	/* get editmode results */
	ED_object_editmode_load(CTX_data_edit_object(C));

	// store spare
	// get view3d layer, local layer, make this nice api call to render
	// store spare

	/* ensure at least 1 area shows result */
	render_view_open(C, event->x, event->y);

	jobflag = WM_JOB_EXCL_RENDER | WM_JOB_PRIORITY | WM_JOB_PROGRESS;
	
	/* custom scene and single layer re-render */
	screen_render_scene_layer_set(op, mainp, &scene, &srl);

	if (RNA_struct_property_is_set(op->ptr, "layer"))
		jobflag |= WM_JOB_SUSPEND;

	/* job custom data */
	rj = MEM_callocN(sizeof(RenderJob), "render job");
	rj->main = mainp;
	rj->scene = scene;
	rj->win = CTX_wm_window(C);
	rj->srl = srl;
	rj->camera_override = camera_override;
	rj->lay = scene->lay;
	rj->anim = is_animation;
	rj->write_still = is_write_still && !is_animation;
	rj->iuser.scene = scene;
	rj->iuser.ok = 1;
	rj->reports = op->reports;

	if (v3d) {
		rj->lay = v3d->lay;

		if (v3d->localvd)
			rj->lay |= v3d->localvd->lay;
	}
//.........这里部分代码省略.........

wmKeyMap *WM_keymap_find_all(const bContext *C, const char *idname, int spaceid, int regionid)
{
	wmWindowManager *wm= CTX_wm_manager(C);

	return WM_keymap_list_find(&wm->userconf->keymaps, idname, spaceid, regionid);
}

static void wm_undo_kill_callback(bContext *C)
{
	WM_jobs_kill_all_except(CTX_wm_manager(C), CTX_wm_screen(C));
}

extern "C" void StartKetsjiShell(struct bContext *C, struct ARegion *ar, rcti *cam_frame, int always_use_expand_framing)
{
	/* context values */
	struct wmWindowManager *wm= CTX_wm_manager(C);
	struct wmWindow *win= CTX_wm_window(C);
	struct Scene *startscene= CTX_data_scene(C);
	struct Main* maggie1= CTX_data_main(C);


	RAS_Rect area_rect;
	area_rect.SetLeft(cam_frame->xmin);
	area_rect.SetBottom(cam_frame->ymin);
	area_rect.SetRight(cam_frame->xmax);
	area_rect.SetTop(cam_frame->ymax);

	int exitrequested = KX_EXIT_REQUEST_NO_REQUEST;
	Main* blenderdata = maggie1;

	char* startscenename = startscene->id.name+2;
	char pathname[FILE_MAXDIR+FILE_MAXFILE], oldsce[FILE_MAXDIR+FILE_MAXFILE];
	STR_String exitstring = "";
	BlendFileData *bfd= NULL;

	BLI_strncpy(pathname, blenderdata->name, sizeof(pathname));
	BLI_strncpy(oldsce, G.main->name, sizeof(oldsce));
#ifdef WITH_PYTHON
	resetGamePythonPath(); // need this so running a second time wont use an old blendfiles path
	setGamePythonPath(G.main->name);

	// Acquire Python's GIL (global interpreter lock)
	// so we can safely run Python code and API calls
	PyGILState_STATE gilstate = PyGILState_Ensure();
	
	PyObject *pyGlobalDict = PyDict_New(); /* python utility storage, spans blend file loading */
#endif
	
	bgl::InitExtensions(true);

	// VBO code for derived mesh is not compatible with BGE (couldn't find why), so disable
	int disableVBO = (U.gameflags & USER_DISABLE_VBO);
	U.gameflags |= USER_DISABLE_VBO;

	// Globals to be carried on over blender files
	GlobalSettings gs;
	gs.matmode= startscene->gm.matmode;
	gs.glslflag= startscene->gm.flag;

	do
	{
		View3D *v3d= CTX_wm_view3d(C);
		RegionView3D *rv3d= CTX_wm_region_view3d(C);

		// get some preferences
		SYS_SystemHandle syshandle = SYS_GetSystem();
		bool properties	= (SYS_GetCommandLineInt(syshandle, "show_properties", 0) != 0);
		bool usefixed = (SYS_GetCommandLineInt(syshandle, "fixedtime", 0) != 0);
		bool profile = (SYS_GetCommandLineInt(syshandle, "show_profile", 0) != 0);
		bool frameRate = (SYS_GetCommandLineInt(syshandle, "show_framerate", 0) != 0);
		bool animation_record = (SYS_GetCommandLineInt(syshandle, "animation_record", 0) != 0);
		bool displaylists = (SYS_GetCommandLineInt(syshandle, "displaylists", 0) != 0) && GPU_display_list_support();
#ifdef WITH_PYTHON
		bool nodepwarnings = (SYS_GetCommandLineInt(syshandle, "ignore_deprecation_warnings", 0) != 0);
#endif
		// bool novertexarrays = (SYS_GetCommandLineInt(syshandle, "novertexarrays", 0) != 0);
		boo