534 lines
12 KiB
C
534 lines
12 KiB
C
/**
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* blenkernel/packedFile.c - (cleaned up mar-01 nzc)
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*
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include <stdio.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#ifndef WIN32
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#include <unistd.h>
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#else
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#include <io.h>
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#endif
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#include <string.h>
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#include "MEM_guardedalloc.h"
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#include "DNA_image_types.h"
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#include "DNA_sound_types.h"
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#include "DNA_vfont_types.h"
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#include "DNA_packedFile_types.h"
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#include "DNA_scene_types.h"
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#include "BLI_blenlib.h"
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#include "BKE_utildefines.h"
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#include "BKE_global.h"
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#include "BKE_main.h"
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#include "BKE_screen.h"
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#include "BKE_sound.h"
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#include "BKE_image.h"
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#include "BKE_font.h"
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#include "BKE_packedFile.h"
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#include "BKE_report.h"
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int seekPackedFile(PackedFile *pf, int offset, int whence)
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{
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int oldseek = -1, seek = 0;
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if (pf) {
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oldseek = pf->seek;
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switch(whence) {
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case SEEK_CUR:
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seek = oldseek + offset;
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break;
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case SEEK_END:
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seek = pf->size + offset;
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break;
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case SEEK_SET:
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seek = offset;
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break;
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default:
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oldseek = -1;
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}
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if (seek < 0) {
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seek = 0;
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} else if (seek > pf->size) {
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seek = pf->size;
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}
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pf->seek = seek;
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}
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return(oldseek);
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}
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void rewindPackedFile(PackedFile *pf)
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{
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seekPackedFile(pf, 0, SEEK_SET);
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}
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int readPackedFile(PackedFile *pf, void *data, int size)
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{
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if ((pf != NULL) && (size >= 0) && (data != NULL)) {
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if (size + pf->seek > pf->size) {
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size = pf->size - pf->seek;
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}
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if (size > 0) {
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memcpy(data, ((char *) pf->data) + pf->seek, size);
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} else {
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size = 0;
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}
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pf->seek += size;
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} else {
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size = -1;
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}
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return(size);
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}
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int countPackedFiles(Main *bmain)
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{
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Image *ima;
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VFont *vf;
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bSample *sample;
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int count = 0;
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// let's check if there are packed files...
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for(ima=bmain->image.first; ima; ima=ima->id.next)
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if(ima->packedfile)
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count++;
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for(vf=bmain->vfont.first; vf; vf=vf->id.next)
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if(vf->packedfile)
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count++;
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if(samples)
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for(sample=samples->first; sample; sample=sample->id.next)
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if(sample->packedfile)
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count++;
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return count;
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}
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void freePackedFile(PackedFile *pf)
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{
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if(pf) {
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MEM_freeN(pf->data);
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MEM_freeN(pf);
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}
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else
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printf("freePackedFile: Trying to free a NULL pointer\n");
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}
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PackedFile *newPackedFileMemory(void *mem, int memlen)
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{
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PackedFile *pf = MEM_callocN(sizeof(*pf), "PackedFile");
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pf->data = mem;
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pf->size = memlen;
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return pf;
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}
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PackedFile *newPackedFile(ReportList *reports, char *filename)
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{
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PackedFile *pf = NULL;
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int file, filelen;
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char name[FILE_MAXDIR+FILE_MAXFILE];
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void *data;
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//XXX waitcursor(1);
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// convert relative filenames to absolute filenames
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strcpy(name, filename);
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BLI_convertstringcode(name, G.sce);
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// open the file
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// and create a PackedFile structure
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file= open(name, O_BINARY|O_RDONLY);
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if (file <= 0) {
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BKE_reportf(reports, RPT_ERROR, "Can't open file: %s", name);
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} else {
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filelen = BLI_filesize(file);
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if (filelen == 0) {
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// MEM_mallocN complains about MEM_mallocN(0, "bla");
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// we don't care....
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data = MEM_mallocN(1, "packFile");
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} else {
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data = MEM_mallocN(filelen, "packFile");
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}
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if (read(file, data, filelen) == filelen) {
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pf = newPackedFileMemory(data, filelen);
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}
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close(file);
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}
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//XXX waitcursor(0);
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return (pf);
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}
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void packAll(Main *bmain, ReportList *reports)
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{
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Image *ima;
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VFont *vf;
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bSample *sample;
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for(ima=bmain->image.first; ima; ima=ima->id.next)
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if(ima->packedfile == NULL)
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ima->packedfile = newPackedFile(reports, ima->name);
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for(vf=bmain->vfont.first; vf; vf=vf->id.next)
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if(vf->packedfile == NULL)
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vf->packedfile = newPackedFile(reports, vf->name);
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if(samples)
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for(sample=samples->first; sample; sample=sample->id.next)
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if(sample->packedfile == NULL)
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sound_set_packedfile(sample, newPackedFile(reports, sample->name));
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}
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/*
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// attempt to create a function that generates an unique filename
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// this will work when all funtions in fileops.c understand relative filenames...
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char *find_new_name(char *name)
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{
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char tempname[FILE_MAXDIR + FILE_MAXFILE];
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char *newname;
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if (fop_exists(name)) {
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for (number = 1; number <= 999; number++) {
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sprintf(tempname, "%s.%03d", name, number);
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if (! fop_exists(tempname)) {
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break;
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}
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}
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}
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newname = mallocN(strlen(tempname) + 1, "find_new_name");
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strcpy(newname, tempname);
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return(newname);
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}
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*/
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int writePackedFile(ReportList *reports, char *filename, PackedFile *pf, int guimode)
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{
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int file, number, remove_tmp = FALSE;
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int ret_value = RET_OK;
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char name[FILE_MAXDIR + FILE_MAXFILE];
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char tempname[FILE_MAXDIR + FILE_MAXFILE];
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/* void *data; */
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if (guimode); //XXX waitcursor(1);
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strcpy(name, filename);
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BLI_convertstringcode(name, G.sce);
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if (BLI_exists(name)) {
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for (number = 1; number <= 999; number++) {
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sprintf(tempname, "%s.%03d_", name, number);
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if (! BLI_exists(tempname)) {
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if (BLI_copy_fileops(name, tempname) == RET_OK) {
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remove_tmp = TRUE;
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}
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break;
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}
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}
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}
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// make sure the path to the file exists...
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BLI_make_existing_file(name);
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file = open(name, O_BINARY + O_WRONLY + O_CREAT + O_TRUNC, 0666);
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if (file >= 0) {
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if (write(file, pf->data, pf->size) != pf->size) {
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BKE_reportf(reports, RPT_ERROR, "Error writing file: %s", name);
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ret_value = RET_ERROR;
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}
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close(file);
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} else {
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BKE_reportf(reports, RPT_ERROR, "Error creating file: %s", name);
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ret_value = RET_ERROR;
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}
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if (remove_tmp) {
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if (ret_value == RET_ERROR) {
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if (BLI_rename(tempname, name) != 0) {
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BKE_reportf(reports, RPT_ERROR, "Error restoring tempfile. Check files: '%s' '%s'", tempname, name);
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}
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} else {
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if (BLI_delete(tempname, 0, 0) != 0) {
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BKE_reportf(reports, RPT_ERROR, "Error deleting '%s' (ignored)", tempname);
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}
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}
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}
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if(guimode); //XXX waitcursor(0);
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return (ret_value);
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}
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/*
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This function compares a packed file to a 'real' file.
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It returns an integer indicating if:
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PF_EQUAL - the packed file and original file are identical
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PF_DIFFERENT - the packed file and original file differ
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PF_NOFILE - the original file doens't exist
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*/
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int checkPackedFile(char *filename, PackedFile *pf)
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{
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struct stat st;
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int ret_val, i, len, file;
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char buf[4096];
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char name[FILE_MAXDIR + FILE_MAXFILE];
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strcpy(name, filename);
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BLI_convertstringcode(name, G.sce);
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if (stat(name, &st)) {
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ret_val = PF_NOFILE;
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} else if (st.st_size != pf->size) {
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ret_val = PF_DIFFERS;
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} else {
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// we'll have to compare the two...
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file = open(name, O_BINARY | O_RDONLY);
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if (file < 0) {
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ret_val = PF_NOFILE;
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} else {
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ret_val = PF_EQUAL;
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for (i = 0; i < pf->size; i += sizeof(buf)) {
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len = pf->size - i;
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if (len > sizeof(buf)) {
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len = sizeof(buf);
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}
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if (read(file, buf, len) != len) {
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// read error ...
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ret_val = PF_DIFFERS;
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break;
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} else {
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if (memcmp(buf, ((char *)pf->data) + i, len)) {
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ret_val = PF_DIFFERS;
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break;
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}
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}
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}
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}
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}
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return(ret_val);
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}
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/*
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unpackFile() looks at the existing files (abs_name, local_name) and a packed file.
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It returns a char *to the existing file name / new file name or NULL when
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there was an error or when the user desides to cancel the operation.
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*/
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char *unpackFile(ReportList *reports, char *abs_name, char *local_name, PackedFile *pf, int how)
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{
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char menu[6 *(FILE_MAXDIR + FILE_MAXFILE + 100)];
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char line[FILE_MAXDIR + FILE_MAXFILE + 100];
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char *newname = NULL, *temp = NULL;
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// char newabs[FILE_MAXDIR + FILE_MAXFILE];
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// char newlocal[FILE_MAXDIR + FILE_MAXFILE];
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if (pf != NULL) {
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switch (how) {
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case -1:
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case PF_KEEP:
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break;
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case PF_REMOVE:
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temp= abs_name;
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break;
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case PF_USE_LOCAL:
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// if file exists use it
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if (BLI_exists(local_name)) {
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temp = local_name;
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break;
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}
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// else fall through and create it
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case PF_WRITE_LOCAL:
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if (writePackedFile(reports, local_name, pf, 1) == RET_OK) {
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temp = local_name;
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}
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break;
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case PF_USE_ORIGINAL:
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// if file exists use it
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if (BLI_exists(abs_name)) {
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temp = abs_name;
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break;
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}
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// else fall through and create it
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case PF_WRITE_ORIGINAL:
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if (writePackedFile(reports, abs_name, pf, 1) == RET_OK) {
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temp = abs_name;
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}
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break;
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default:
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printf("unpackFile: unknown return_value %d\n", how);
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break;
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}
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if (temp) {
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newname = MEM_mallocN(strlen(temp) + 1, "unpack_file newname");
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strcpy(newname, temp);
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}
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}
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return (newname);
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}
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int unpackVFont(ReportList *reports, VFont *vfont, int how)
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{
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char localname[FILE_MAXDIR + FILE_MAXFILE], fi[FILE_MAXFILE];
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char *newname;
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int ret_value = RET_ERROR;
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if (vfont != NULL) {
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strcpy(localname, vfont->name);
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BLI_splitdirstring(localname, fi);
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sprintf(localname, "//fonts/%s", fi);
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newname = unpackFile(reports, vfont->name, localname, vfont->packedfile, how);
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if (newname != NULL) {
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ret_value = RET_OK;
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freePackedFile(vfont->packedfile);
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vfont->packedfile = 0;
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strcpy(vfont->name, newname);
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MEM_freeN(newname);
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}
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}
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return (ret_value);
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}
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int unpackSample(ReportList *reports, bSample *sample, int how)
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{
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char localname[FILE_MAXDIR + FILE_MAX], fi[FILE_MAX];
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char *newname;
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int ret_value = RET_ERROR;
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PackedFile *pf;
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if (sample != NULL) {
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strcpy(localname, sample->name);
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BLI_splitdirstring(localname, fi);
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sprintf(localname, "//samples/%s", fi);
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newname = unpackFile(reports, sample->name, localname, sample->packedfile, how);
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if (newname != NULL) {
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strcpy(sample->name, newname);
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MEM_freeN(newname);
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pf = sample->packedfile;
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// because samples and sounds can point to the
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// same packedfile we have to check them all
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sound_set_packedfile(sample, NULL);
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freePackedFile(pf);
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ret_value = RET_OK;
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}
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}
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return(ret_value);
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}
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int unpackImage(ReportList *reports, Image *ima, int how)
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{
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char localname[FILE_MAXDIR + FILE_MAX], fi[FILE_MAX];
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char *newname;
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int ret_value = RET_ERROR;
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if (ima != NULL) {
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strcpy(localname, ima->name);
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BLI_splitdirstring(localname, fi);
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sprintf(localname, "//textures/%s", fi);
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newname = unpackFile(reports, ima->name, localname, ima->packedfile, how);
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if (newname != NULL) {
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ret_value = RET_OK;
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freePackedFile(ima->packedfile);
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ima->packedfile = NULL;
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strcpy(ima->name, newname);
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MEM_freeN(newname);
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BKE_image_signal(ima, NULL, IMA_SIGNAL_RELOAD);
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}
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}
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return(ret_value);
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}
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void unpackAll(Main *bmain, ReportList *reports, int how)
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{
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Image *ima;
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VFont *vf;
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bSample *sample;
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for(ima=bmain->image.first; ima; ima=ima->id.next)
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if(ima->packedfile)
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unpackImage(reports, ima, how);
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for(vf=bmain->vfont.first; vf; vf=vf->id.next)
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if(vf->packedfile)
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unpackVFont(reports, vf, how);
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if(samples)
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for(sample=samples->first; sample; sample=sample->id.next)
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if(sample->packedfile)
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unpackSample(reports, sample, how);
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}
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