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raze-gles/source/libxmp-lite/src/load.c
terminx 8de955053c Update libxmp-lite 
git-svn-id: https://svn.eduke32.com/eduke32@8132 1a8010ca-5511-0410-912e-c29ae57300e0
2019-09-20 23:29:40 +02:00

695 lines
14 KiB
C
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/* Extended Module Player
* Copyright (C) 1996-2018 Claudio Matsuoka and Hipolito Carraro Jr
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#ifdef __native_client__
#include <sys/syslimits.h>
#else
#include <limits.h>
#endif
#include "format.h"
#include "list.h"
#include "hio.h"
#ifndef LIBXMP_CORE_PLAYER
#if !defined(HAVE_POPEN) && defined(WIN32)
#include "win32/ptpopen.h"
#define HAVE_POPEN 1
#endif
#if defined(__WATCOMC__)
#define popen _popen
#define pclose _pclose
#define HAVE_POPEN 1
#endif
#include "md5.h"
#include "extras.h"
#endif
extern const struct format_loader *const format_loader[];
void libxmp_load_prologue(struct context_data *);
void libxmp_load_epilogue(struct context_data *);
int libxmp_prepare_scan(struct context_data *);
#ifndef LIBXMP_CORE_PLAYER
#include "depacker.h"
static struct depacker *depacker_list[] = {
#if defined __AMIGA__ && !defined __AROS__
&libxmp_depacker_xfd,
#endif
&libxmp_depacker_zip,
&libxmp_depacker_lha,
&libxmp_depacker_gzip,
&libxmp_depacker_bzip2,
&libxmp_depacker_xz,
&libxmp_depacker_compress,
&libxmp_depacker_pp,
&libxmp_depacker_sqsh,
&libxmp_depacker_arcfs,
&libxmp_depacker_mmcmp,
&libxmp_depacker_muse,
&libxmp_depacker_lzx,
&libxmp_depacker_s404,
&libxmp_depacker_arc,
NULL
};
int test_oxm (FILE *);
#define BUFLEN 16384
#ifndef HAVE_POPEN
static int execute_command(const char *cmd, const char *filename, FILE *t) {
return -1;
}
#else
static int execute_command(const char *cmd, const char *filename, FILE *t)
{
char line[1024], buf[BUFLEN];
FILE *p;
int n;
snprintf(line, 1024, cmd, filename);
#if defined(_WIN32) || defined(__OS2__) || defined(__EMX__)
/* Note: The _popen function returns an invalid file opaque, if
* used in a Windows program, that will cause the program to hang
* indefinitely. _popen works properly in a Console application.
* To create a Windows application that redirects input and output,
* read the section "Creating a Child Process with Redirected Input
* and Output" in the Win32 SDK. -- Mirko
*/
p = popen(line, "rb");
#else
/* Linux popen fails with "rb" */
p = popen(line, "r");
#endif
if (p == NULL) {
return -1;
}
while ((n = fread(buf, 1, BUFLEN, p)) > 0) {
fwrite(buf, 1, n, t);
}
pclose (p);
return 0;
}
#endif
static int decrunch(HIO_HANDLE **h, const char *filename, char **temp)
{
unsigned char b[1024];
const char *cmd;
FILE *f, *t;
int res;
int headersize;
int i;
struct depacker *depacker = NULL;
cmd = NULL;
res = 0;
*temp = NULL;
f = (*h)->handle.file;
headersize = fread(b, 1, 1024, f);
if (headersize < 100) { /* minimum valid file size */
return 0;
}
/* Check built-in depackers */
for (i = 0; depacker_list[i] != NULL; i++) {
if (depacker_list[i]->test(b)) {
depacker = depacker_list[i];
D_(D_INFO "Use depacker %d", i);
break;
}
}
/* Check external commands */
if (depacker == NULL) {
if (b[0] == 'M' && b[1] == 'O' && b[2] == '3') {
/* MO3 */
D_(D_INFO "mo3");
cmd = "unmo3 -s \"%s\" STDOUT";
} else if (memcmp(b, "Rar", 3) == 0) {
/* rar */
D_(D_INFO "rar");
cmd = "unrar p -inul -xreadme -x*.diz -x*.nfo -x*.txt "
"-x*.exe -x*.com \"%s\"";
} else if (test_oxm(f) == 0) {
/* oggmod */
D_(D_INFO "oggmod");
depacker = &libxmp_depacker_oxm;
}
}
if (fseek(f, 0, SEEK_SET) < 0) {
goto err;
}
if (depacker == NULL && cmd == NULL) {
D_(D_INFO "Not packed");
return 0;
}
#if defined __ANDROID__ || defined __native_client__
/* Don't use external helpers in android */
if (cmd) {
return 0;
}
#endif
D_(D_WARN "Depacking file... ");
if ((t = make_temp_file(temp)) == NULL) {
goto err;
}
/* Depack file */
if (cmd) {
D_(D_INFO "External depacker: %s", cmd);
if (execute_command(cmd, filename, t) < 0) {
D_(D_CRIT "failed");
goto err2;
}
} else if (depacker) {
D_(D_INFO "Internal depacker");
if (depacker->depack(f, t) < 0) {
D_(D_CRIT "failed");
goto err2;
}
}
D_(D_INFO "done");
if (fseek(t, 0, SEEK_SET) < 0) {
D_(D_CRIT "fseek error");
goto err2;
}
hio_close(*h);
*h = hio_open_file(t);
return res;
err2:
fclose(t);
err:
return -1;
}
static void set_md5sum(HIO_HANDLE *f, unsigned char *digest)
{
unsigned char buf[BUFLEN];
MD5_CTX ctx;
int bytes_read;
if (hio_size(f) <= 0) {
memset(digest, 0, 16);
return;
}
hio_seek(f, 0, SEEK_SET);
MD5Init(&ctx);
while ((bytes_read = hio_read(buf, 1, BUFLEN, f)) > 0) {
MD5Update(&ctx, buf, bytes_read);
}
MD5Final(digest, &ctx);
}
static char *get_dirname(char *name)
{
char *div, *dirname;
int len;
if ((div = strrchr(name, '/'))) {
len = div - name + 1;
dirname = malloc(len + 1);
if (dirname != NULL) {
memcpy(dirname, name, len);
dirname[len] = 0;
}
} else {
dirname = strdup("");
}
return dirname;
}
static char *get_basename(char *name)
{
char *div, *basename;
if ((div = strrchr(name, '/'))) {
basename = strdup(div + 1);
} else {
basename = strdup(name);
}
return basename;
}
#endif /* LIBXMP_CORE_PLAYER */
#ifdef EDUKE32_DISABLED
int xmp_test_module(char *path, struct xmp_test_info *info)
{
HIO_HANDLE *h;
struct stat st;
char buf[XMP_NAME_SIZE];
int i;
int ret = -XMP_ERROR_FORMAT;
#ifndef LIBXMP_CORE_PLAYER
char *temp = NULL;
#endif
if (stat(path, &st) < 0)
return -XMP_ERROR_SYSTEM;
#ifndef _MSC_VER
if (S_ISDIR(st.st_mode)) {
errno = EISDIR;
return -XMP_ERROR_SYSTEM;
}
#endif
if ((h = hio_open(path, "rb")) == NULL)
return -XMP_ERROR_SYSTEM;
#ifndef LIBXMP_CORE_PLAYER
if (decrunch(&h, path, &temp) < 0) {
ret = -XMP_ERROR_DEPACK;
goto err;
}
/* get size after decrunch */
if (hio_size(h) < 256) { /* set minimum valid module size */
ret = -XMP_ERROR_FORMAT;
goto err;
}
#endif
if (info != NULL) {
*info->name = 0; /* reset name prior to testing */
*info->type = 0; /* reset type prior to testing */
}
for (i = 0; format_loader[i] != NULL; i++) {
hio_seek(h, 0, SEEK_SET);
if (format_loader[i]->test(h, buf, 0) == 0) {
int is_prowizard = 0;
#ifndef LIBXMP_CORE_PLAYER
if (strcmp(format_loader[i]->name, "prowizard") == 0) {
hio_seek(h, 0, SEEK_SET);
pw_test_format(h, buf, 0, info);
is_prowizard = 1;
}
#endif
fclose(h->handle.file);
#ifndef LIBXMP_CORE_PLAYER
unlink_temp_file(temp);
#endif
if (info != NULL && !is_prowizard) {
strncpy(info->name, buf, XMP_NAME_SIZE - 1);
strncpy(info->type, format_loader[i]->name,
XMP_NAME_SIZE - 1);
}
return 0;
}
}
#ifndef LIBXMP_CORE_PLAYER
err:
hio_close(h);
unlink_temp_file(temp);
#else
hio_close(h);
#endif
return ret;
}
#endif
static int load_module(xmp_context opaque, HIO_HANDLE *h)
{
struct context_data *ctx = (struct context_data *)opaque;
struct module_data *m = &ctx->m;
struct xmp_module *mod = &m->mod;
int i, j, ret;
int test_result, load_result;
libxmp_load_prologue(ctx);
D_(D_WARN "load");
test_result = load_result = -1;
for (i = 0; format_loader[i] != NULL; i++) {
hio_seek(h, 0, SEEK_SET);
if (hio_error(h)) {
/* reset error flag */
}
D_(D_WARN "test %s", format_loader[i]->name);
test_result = format_loader[i]->test(h, NULL, 0);
if (test_result == 0) {
hio_seek(h, 0, SEEK_SET);
D_(D_WARN "load format: %s", format_loader[i]->name);
load_result = format_loader[i]->loader(m, h, 0);
break;
}
}
#ifndef LIBXMP_CORE_PLAYER
if (test_result == 0 && load_result == 0)
set_md5sum(h, m->md5);
#endif
if (test_result < 0) {
free(m->basename);
free(m->dirname);
return -XMP_ERROR_FORMAT;
}
if (load_result < 0) {
goto err_load;
}
/* Sanity check: number of channels, module length */
if (mod->chn > XMP_MAX_CHANNELS || mod->len > XMP_MAX_MOD_LENGTH) {
goto err_load;
}
/* Sanity check: channel pan */
for (i = 0; i < mod->chn; i++) {
if (mod->xxc[i].vol < 0 || mod->xxc[i].vol > 0xff) {
goto err_load;
}
if (mod->xxc[i].pan < 0 || mod->xxc[i].pan > 0xff) {
goto err_load;
}
}
/* Sanity check: patterns */
if (mod->xxp == NULL) {
goto err_load;
}
for (i = 0; i < mod->pat; i++) {
if (mod->xxp[i] == NULL) {
goto err_load;
}
for (j = 0; j < mod->chn; j++) {
int t = mod->xxp[i]->index[j];
if (t < 0 || t >= mod->trk || mod->xxt[t] == NULL) {
goto err_load;
}
}
}
libxmp_adjust_string(mod->name);
for (i = 0; i < mod->ins; i++) {
libxmp_adjust_string(mod->xxi[i].name);
}
for (i = 0; i < mod->smp; i++) {
libxmp_adjust_string(mod->xxs[i].name);
}
libxmp_load_epilogue(ctx);
ret = libxmp_prepare_scan(ctx);
if (ret < 0) {
xmp_release_module(opaque);
return ret;
}
libxmp_scan_sequences(ctx);
ctx->state = XMP_STATE_LOADED;
return 0;
err_load:
xmp_release_module(opaque);
return -XMP_ERROR_LOAD;
}
#ifdef EDUKE32_DISABLED
int xmp_load_module(xmp_context opaque, char *path)
{
struct context_data *ctx = (struct context_data *)opaque;
#ifndef LIBXMP_CORE_PLAYER
struct module_data *m = &ctx->m;
long size;
char *temp_name;
#endif
HIO_HANDLE *h;
struct stat st;
int ret;
D_(D_WARN "path = %s", path);
if (stat(path, &st) < 0) {
return -XMP_ERROR_SYSTEM;
}
#ifndef _MSC_VER
if (S_ISDIR(st.st_mode)) {
errno = EISDIR;
return -XMP_ERROR_SYSTEM;
}
#endif
if ((h = hio_open(path, "rb")) == NULL) {
return -XMP_ERROR_SYSTEM;
}
#ifndef LIBXMP_CORE_PLAYER
D_(D_INFO "decrunch");
if (decrunch(&h, path, &temp_name) < 0) {
ret = -XMP_ERROR_DEPACK;
goto err;
}
size = hio_size(h);
if (size < 256) { /* get size after decrunch */
ret = -XMP_ERROR_FORMAT;
goto err;
}
#endif
if (ctx->state > XMP_STATE_UNLOADED)
xmp_release_module(opaque);
#ifndef LIBXMP_CORE_PLAYER
m->dirname = get_dirname(path);
if (m->dirname == NULL) {
ret = -XMP_ERROR_SYSTEM;
goto err;
}
m->basename = get_basename(path);
if (m->basename == NULL) {
ret = -XMP_ERROR_SYSTEM;
goto err;
}
m->filename = path; /* For ALM, SSMT, etc */
m->size = size;
#endif
ret = load_module(opaque, h);
hio_close(h);
#ifndef LIBXMP_CORE_PLAYER
unlink_temp_file(temp_name);
#endif
return ret;
#ifndef LIBXMP_CORE_PLAYER
err:
hio_close(h);
unlink_temp_file(temp_name);
return ret;
#endif
}
#endif
int xmp_load_module_from_memory(xmp_context opaque, void *mem, long size)
{
struct context_data *ctx = (struct context_data *)opaque;
struct module_data *m = &ctx->m;
HIO_HANDLE *h;
int ret;
/* Use size < 0 for unknown/undetermined size */
if (size == 0)
size--;
if ((h = hio_open_mem(mem, size)) == NULL)
return -XMP_ERROR_SYSTEM;
if (ctx->state > XMP_STATE_UNLOADED)
xmp_release_module(opaque);
m->filename = NULL;
m->basename = NULL;
m->dirname = NULL;
m->size = size;
ret = load_module(opaque, h);
hio_close(h);
return ret;
}
#ifdef EDUKE32_DISABLED
int xmp_load_module_from_file(xmp_context opaque, void *file, long size)
{
struct context_data *ctx = (struct context_data *)opaque;
struct module_data *m = &ctx->m;
HIO_HANDLE *h;
FILE *f = fdopen(fileno((FILE *)file), "rb");
int ret;
if ((h = hio_open_file(f)) == NULL)
return -XMP_ERROR_SYSTEM;
if (ctx->state > XMP_STATE_UNLOADED)
xmp_release_module(opaque);
m->filename = NULL;
m->basename = NULL;
m->dirname = NULL;
m->size = hio_size(h);
ret = load_module(opaque, h);
hio_close(h);
return ret;
}
#endif
void xmp_release_module(xmp_context opaque)
{
struct context_data *ctx = (struct context_data *)opaque;
struct module_data *m = &ctx->m;
struct xmp_module *mod = &m->mod;
int i;
/* can't test this here, we must call release_module to clean up
* load errors
if (ctx->state < XMP_STATE_LOADED)
return;
*/
if (ctx->state > XMP_STATE_LOADED)
xmp_end_player(opaque);
ctx->state = XMP_STATE_UNLOADED;
D_(D_INFO "Freeing memory");
#ifndef LIBXMP_CORE_PLAYER
libxmp_release_module_extras(ctx);
#endif
if (mod->xxt != NULL) {
for (i = 0; i < mod->trk; i++) {
free(mod->xxt[i]);
}
free(mod->xxt);
}
if (mod->xxp != NULL) {
for (i = 0; i < mod->pat; i++) {
free(mod->xxp[i]);
}
free(mod->xxp);
}
if (mod->xxi != NULL) {
for (i = 0; i < mod->ins; i++) {
free(mod->xxi[i].sub);
free(mod->xxi[i].extra);
}
free(mod->xxi);
}
if (mod->xxs != NULL) {
for (i = 0; i < mod->smp; i++) {
if (mod->xxs[i].data != NULL) {
free(mod->xxs[i].data - 4);
}
}
free(mod->xxs);
free(m->xtra);
}
#ifndef LIBXMP_CORE_DISABLE_IT
if (m->xsmp != NULL) {
for (i = 0; i < mod->smp; i++) {
if (m->xsmp[i].data != NULL) {
free(m->xsmp[i].data - 4);
}
}
free(m->xsmp);
}
#endif
if (m->scan_cnt) {
for (i = 0; i < mod->len; i++)
free(m->scan_cnt[i]);
free(m->scan_cnt);
}
free(m->comment);
D_("free dirname/basename");
free(m->dirname);
free(m->basename);
}
void xmp_scan_module(xmp_context opaque)
{
struct context_data *ctx = (struct context_data *)opaque;
if (ctx->state < XMP_STATE_LOADED)
return;
libxmp_scan_sequences(ctx);
}
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