open source
This commit is contained in:
lvfulong
@@ -0,0 +1,338 @@
|
||||
/**
|
||||
* OpenAL cross platform audio library
|
||||
* Copyright (C) 1999-2007 by authors.
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library 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
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
* Boston, MA 02111-1307, USA.
|
||||
* Or go to http://www.gnu.org/copyleft/lgpl.html
|
||||
*/
|
||||
|
||||
#ifdef _WIN32
|
||||
#ifdef __MINGW64__
|
||||
#define _WIN32_IE 0x501
|
||||
#else
|
||||
#define _WIN32_IE 0x400
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <ctype.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "alMain.h"
|
||||
|
||||
#ifdef _WIN32_IE
|
||||
#include <shlobj.h>
|
||||
#endif
|
||||
|
||||
typedef struct ConfigEntry {
|
||||
char *key;
|
||||
char *value;
|
||||
} ConfigEntry;
|
||||
|
||||
typedef struct ConfigBlock {
|
||||
char *name;
|
||||
ConfigEntry *entries;
|
||||
size_t entryCount;
|
||||
} ConfigBlock;
|
||||
|
||||
static ConfigBlock *cfgBlocks;
|
||||
static size_t cfgCount;
|
||||
|
||||
static char buffer[1024];
|
||||
|
||||
static void LoadConfigFromFile(FILE *f)
|
||||
{
|
||||
ConfigBlock *curBlock = cfgBlocks;
|
||||
ConfigEntry *ent;
|
||||
|
||||
while(fgets(buffer, sizeof(buffer), f))
|
||||
{
|
||||
size_t i = 0;
|
||||
|
||||
while(isspace(buffer[i]))
|
||||
i++;
|
||||
if(!buffer[i] || buffer[i] == '#')
|
||||
continue;
|
||||
|
||||
memmove(buffer, buffer+i, strlen(buffer+i)+1);
|
||||
|
||||
if(buffer[0] == '[')
|
||||
{
|
||||
ConfigBlock *nextBlock;
|
||||
|
||||
i = 1;
|
||||
while(buffer[i] && buffer[i] != ']')
|
||||
i++;
|
||||
|
||||
if(!buffer[i])
|
||||
{
|
||||
AL_PRINT("config parse error: bad line \"%s\"\n", buffer);
|
||||
continue;
|
||||
}
|
||||
buffer[i] = 0;
|
||||
|
||||
do {
|
||||
i++;
|
||||
if(buffer[i] && !isspace(buffer[i]))
|
||||
{
|
||||
if(buffer[i] != '#')
|
||||
AL_PRINT("config warning: extra data after block: \"%s\"\n", buffer+i);
|
||||
break;
|
||||
}
|
||||
} while(buffer[i]);
|
||||
|
||||
nextBlock = NULL;
|
||||
for(i = 0;i < cfgCount;i++)
|
||||
{
|
||||
if(strcasecmp(cfgBlocks[i].name, buffer+1) == 0)
|
||||
{
|
||||
nextBlock = cfgBlocks+i;
|
||||
// AL_PRINT("found block '%s'\n", nextBlock->name);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if(!nextBlock)
|
||||
{
|
||||
nextBlock = realloc(cfgBlocks, (cfgCount+1)*sizeof(ConfigBlock));
|
||||
if(!nextBlock)
|
||||
{
|
||||
AL_PRINT("config parse error: error reallocating config blocks\n");
|
||||
continue;
|
||||
}
|
||||
cfgBlocks = nextBlock;
|
||||
nextBlock = cfgBlocks+cfgCount;
|
||||
cfgCount++;
|
||||
|
||||
nextBlock->name = strdup(buffer+1);
|
||||
nextBlock->entries = NULL;
|
||||
nextBlock->entryCount = 0;
|
||||
|
||||
// AL_PRINT("found new block '%s'\n", nextBlock->name);
|
||||
}
|
||||
curBlock = nextBlock;
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Look for the option name */
|
||||
i = 0;
|
||||
while(buffer[i] && buffer[i] != '#' && buffer[i] != '=' &&
|
||||
!isspace(buffer[i]))
|
||||
i++;
|
||||
|
||||
if(!buffer[i] || buffer[i] == '#' || i == 0)
|
||||
{
|
||||
AL_PRINT("config parse error: malformed option line: \"%s\"\n", buffer);
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Seperate the option */
|
||||
if(buffer[i] != '=')
|
||||
{
|
||||
buffer[i++] = 0;
|
||||
|
||||
while(isspace(buffer[i]))
|
||||
i++;
|
||||
if(buffer[i] != '=')
|
||||
{
|
||||
AL_PRINT("config parse error: option without a value: \"%s\"\n", buffer);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
/* Find the start of the value */
|
||||
buffer[i++] = 0;
|
||||
while(isspace(buffer[i]))
|
||||
i++;
|
||||
|
||||
/* Check if we already have this option set */
|
||||
ent = curBlock->entries;
|
||||
while((size_t)(ent-curBlock->entries) < curBlock->entryCount)
|
||||
{
|
||||
if(strcasecmp(ent->key, buffer) == 0)
|
||||
break;
|
||||
ent++;
|
||||
}
|
||||
|
||||
if((size_t)(ent-curBlock->entries) >= curBlock->entryCount)
|
||||
{
|
||||
/* Allocate a new option entry */
|
||||
ent = realloc(curBlock->entries, (curBlock->entryCount+1)*sizeof(ConfigEntry));
|
||||
if(!ent)
|
||||
{
|
||||
AL_PRINT("config parse error: error reallocating config entries\n");
|
||||
continue;
|
||||
}
|
||||
curBlock->entries = ent;
|
||||
ent = curBlock->entries + curBlock->entryCount;
|
||||
curBlock->entryCount++;
|
||||
|
||||
ent->key = strdup(buffer);
|
||||
ent->value = NULL;
|
||||
}
|
||||
|
||||
/* Look for the end of the line (Null term, new-line, or #-symbol) and
|
||||
eat up the trailing whitespace */
|
||||
memmove(buffer, buffer+i, strlen(buffer+i)+1);
|
||||
|
||||
i = 0;
|
||||
while(buffer[i] && buffer[i] != '#' && buffer[i] != '\n')
|
||||
i++;
|
||||
do {
|
||||
i--;
|
||||
} while(isspace(buffer[i]));
|
||||
buffer[++i] = 0;
|
||||
|
||||
free(ent->value);
|
||||
ent->value = strdup(buffer);
|
||||
|
||||
// AL_PRINT("found '%s' = '%s'\n", ent->key, ent->value);
|
||||
}
|
||||
}
|
||||
|
||||
void ReadALConfig(void)
|
||||
{
|
||||
FILE *f;
|
||||
|
||||
cfgBlocks = calloc(1, sizeof(ConfigBlock));
|
||||
cfgBlocks->name = strdup("general");
|
||||
cfgCount = 1;
|
||||
|
||||
#ifdef _WIN32
|
||||
if(SHGetSpecialFolderPathA(NULL, buffer, CSIDL_APPDATA, FALSE) != FALSE)
|
||||
{
|
||||
size_t p = strlen(buffer);
|
||||
snprintf(buffer+p, sizeof(buffer)-p, "\\alsoft.ini");
|
||||
f = fopen(buffer, "rt");
|
||||
if(f)
|
||||
{
|
||||
LoadConfigFromFile(f);
|
||||
fclose(f);
|
||||
}
|
||||
}
|
||||
#else
|
||||
f = fopen("/etc/openal/alsoft.conf", "r");
|
||||
if(f)
|
||||
{
|
||||
LoadConfigFromFile(f);
|
||||
fclose(f);
|
||||
}
|
||||
if(getenv("HOME") && *(getenv("HOME")))
|
||||
{
|
||||
snprintf(buffer, sizeof(buffer), "%s/.alsoftrc", getenv("HOME"));
|
||||
f = fopen(buffer, "r");
|
||||
if(f)
|
||||
{
|
||||
LoadConfigFromFile(f);
|
||||
fclose(f);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
if(getenv("ALSOFT_CONF"))
|
||||
{
|
||||
f = fopen(getenv("ALSOFT_CONF"), "r");
|
||||
if(f)
|
||||
{
|
||||
LoadConfigFromFile(f);
|
||||
fclose(f);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void FreeALConfig(void)
|
||||
{
|
||||
size_t i;
|
||||
|
||||
for(i = 0;i < cfgCount;i++)
|
||||
{
|
||||
size_t j;
|
||||
for(j = 0;j < cfgBlocks[i].entryCount;j++)
|
||||
{
|
||||
free(cfgBlocks[i].entries[j].key);
|
||||
free(cfgBlocks[i].entries[j].value);
|
||||
}
|
||||
free(cfgBlocks[i].entries);
|
||||
free(cfgBlocks[i].name);
|
||||
}
|
||||
free(cfgBlocks);
|
||||
cfgBlocks = NULL;
|
||||
cfgCount = 0;
|
||||
}
|
||||
|
||||
const char *GetConfigValue(const char *blockName, const char *keyName, const char *def)
|
||||
{
|
||||
size_t i, j;
|
||||
|
||||
if(!keyName)
|
||||
return def;
|
||||
|
||||
if(!blockName)
|
||||
blockName = "general";
|
||||
|
||||
for(i = 0;i < cfgCount;i++)
|
||||
{
|
||||
if(strcasecmp(cfgBlocks[i].name, blockName) != 0)
|
||||
continue;
|
||||
|
||||
for(j = 0;j < cfgBlocks[i].entryCount;j++)
|
||||
{
|
||||
if(strcasecmp(cfgBlocks[i].entries[j].key, keyName) == 0)
|
||||
{
|
||||
if(cfgBlocks[i].entries[j].value[0])
|
||||
return cfgBlocks[i].entries[j].value;
|
||||
return def;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return def;
|
||||
}
|
||||
|
||||
int ConfigValueExists(const char *blockName, const char *keyName)
|
||||
{
|
||||
const char *val = GetConfigValue(blockName, keyName, "");
|
||||
return !!val[0];
|
||||
}
|
||||
|
||||
int GetConfigValueInt(const char *blockName, const char *keyName, int def)
|
||||
{
|
||||
const char *val = GetConfigValue(blockName, keyName, "");
|
||||
|
||||
if(!val[0]) return def;
|
||||
return strtol(val, NULL, 0);
|
||||
}
|
||||
|
||||
float GetConfigValueFloat(const char *blockName, const char *keyName, float def)
|
||||
{
|
||||
const char *val = GetConfigValue(blockName, keyName, "");
|
||||
|
||||
if(!val[0]) return def;
|
||||
#ifdef HAVE_STRTOF
|
||||
return strtof(val, NULL);
|
||||
#else
|
||||
return (float)strtod(val, NULL);
|
||||
#endif
|
||||
}
|
||||
|
||||
int GetConfigValueBool(const char *blockName, const char *keyName, int def)
|
||||
{
|
||||
const char *val = GetConfigValue(blockName, keyName, "");
|
||||
|
||||
if(!val[0]) return !!def;
|
||||
return (strcasecmp(val, "true") == 0 || strcasecmp(val, "yes") == 0 ||
|
||||
strcasecmp(val, "on") == 0 || atoi(val) != 0);
|
||||
}
|
||||
Reference in New Issue
Block a user