acc/strlist.c

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C
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2006-02-24 05:03:04 +00:00
//**************************************************************************
//**
//** strlist.c
//**
//**************************************************************************
// HEADER FILES ------------------------------------------------------------
#include <string.h>
#include <stdlib.h>
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#include "common.h"
#include "strlist.h"
#include "error.h"
#include "misc.h"
#include "pcode.h"
// MACROS ------------------------------------------------------------------
// TYPES -------------------------------------------------------------------
typedef struct
{
char *name;
int address;
} stringInfo_t;
typedef struct
{
int stringCount;
stringInfo_t strings[MAX_STRINGS];
} stringList_t;
typedef struct
{
char name[4];
stringList_t list;
} languageInfo_t;
// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
static int STR_PutStringInSomeList(stringList_t *list, int index, char *name);
static int STR_FindInSomeList(stringList_t *list, char *name);
static int STR_FindInSomeListInsensitive(stringList_t *list, char *name);
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static void DumpStrings(stringList_t *list, int lenadr, boolean quad, boolean crypt);
static void Encrypt(void *data, int key, int len);
// EXTERNAL DATA DECLARATIONS ----------------------------------------------
// PUBLIC DATA DEFINITIONS -------------------------------------------------
int NumLanguages, NumStringLists;
// PRIVATE DATA DEFINITIONS ------------------------------------------------
static languageInfo_t *LanguageInfo[MAX_LANGUAGES];
static stringList_t *StringLists[NUM_STRLISTS];
// CODE --------------------------------------------------------------------
//==========================================================================
//
// STR_Init
//
//==========================================================================
void STR_Init(void)
{
NumLanguages = NumStringLists = 0;
STR_FindLanguage(NULL); // Default language is always number 0
}
//==========================================================================
//
// STR_FindLanguage
//
//==========================================================================
int STR_FindLanguage(char *name)
{
int i;
if (name == NULL)
{
if (NumLanguages > 0)
{
return 0;
}
i = 0;
}
else
{
for(i = 0; i < NumLanguages; i++)
{
if (strcmp (name, LanguageInfo[i]->name) == 0)
{
return i;
}
}
}
if(i == NumLanguages)
{
LanguageInfo[i] = MS_Alloc(sizeof(languageInfo_t), ERR_OUT_OF_MEMORY);
memset(LanguageInfo[i]->name, 0, 4);
if(name != NULL)
{
strncpy(LanguageInfo[i]->name, name, 3);
}
LanguageInfo[i]->list.stringCount = 0;
NumLanguages++;
if(NumLanguages > 1 && pc_EnforceHexen)
{
ERR_Error(ERR_HEXEN_COMPAT, YES);
}
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}
return i;
}
//==========================================================================
//
// STR_Get
//
//==========================================================================
char *STR_Get(int num)
{
return LanguageInfo[0]->list.strings[num].name;
}
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//==========================================================================
//
// STR_Find
//
//==========================================================================
int STR_Find(char *name)
{
return STR_FindInLanguage(0, name);
}
//==========================================================================
//
// STR_FindInLanguage
//
//==========================================================================
int STR_FindInLanguage(int language, char *name)
{
return STR_FindInSomeList (&LanguageInfo[language]->list, name);
}
//==========================================================================
//
// STR_FindInList
//
//==========================================================================
int STR_FindInList(int list, char *name)
{
if (StringLists[list] == NULL)
{
StringLists[list] = MS_Alloc(sizeof(stringList_t), ERR_OUT_OF_MEMORY);
StringLists[list]->stringCount = 0;
NumStringLists++;
if(pc_EnforceHexen)
{
ERR_Error(ERR_HEXEN_COMPAT, YES);
}
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}
return STR_FindInSomeList (StringLists[list], name);
}
//==========================================================================
//
// STR_FindInSomeList
//
//==========================================================================
static int STR_FindInSomeList(stringList_t *list, char *name)
{
int i;
for(i = 0; i < list->stringCount; i++)
{
if(strcmp(list->strings[i].name, name) == 0)
{
return i;
}
}
// Add to list
return STR_PutStringInSomeList(list, i, name);
}
//==========================================================================
//
// STR_FindInListInsensitive
//
//==========================================================================
int STR_FindInListInsensitive(int list, char *name)
{
if (StringLists[list] == NULL)
{
StringLists[list] = MS_Alloc(sizeof(stringList_t), ERR_OUT_OF_MEMORY);
StringLists[list]->stringCount = 0;
NumStringLists++;
if(pc_EnforceHexen)
{
ERR_Error(ERR_HEXEN_COMPAT, YES);
}
}
return STR_FindInSomeListInsensitive (StringLists[list], name);
}
//==========================================================================
//
// STR_FindInSomeListInsensitive
//
//==========================================================================
static int STR_FindInSomeListInsensitive(stringList_t *list, char *name)
{
int i;
for(i = 0; i < list->stringCount; i++)
{
if(strcasecmp(list->strings[i].name, name) == 0)
{
return i;
}
}
// Add to list
return STR_PutStringInSomeList(list, i, name);
}
//==========================================================================
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//
// STR_GetString
//
//==========================================================================
const char *STR_GetString(int list, int index)
{
if (StringLists[list] == NULL)
{
return NULL;
}
if (index < 0 || index >= StringLists[list]->stringCount)
{
return NULL;
}
return StringLists[list]->strings[index].name;
}
//==========================================================================
//
// STR_AppendToList
//
//==========================================================================
int STR_AppendToList(int list, char *name)
{
if (StringLists[list] == NULL)
{
StringLists[list] = MS_Alloc(sizeof(stringList_t), ERR_OUT_OF_MEMORY);
StringLists[list]->stringCount = 0;
NumStringLists++;
if(pc_EnforceHexen)
{
ERR_Error(ERR_HEXEN_COMPAT, YES);
}
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}
return STR_PutStringInSomeList(StringLists[list], StringLists[list]->stringCount, name);
}
//==========================================================================
//
// STR_PutStringInSomeList
//
//==========================================================================
static int STR_PutStringInSomeList(stringList_t *list, int index, char *name)
{
int i;
if(index >= MAX_STRINGS)
{
ERR_Error(ERR_TOO_MANY_STRINGS, YES, MAX_STRINGS);
return 0;
}
MS_Message(MSG_DEBUG, "Adding string %d:\n \"%s\"\n",
list->stringCount, name);
if(index >= list->stringCount)
{
for(i = list->stringCount; i <= index; i++)
{
list->strings[i].name = NULL;
}
list->stringCount = index + 1;
}
if(list->strings[index].name != NULL)
{
free(list->strings[index].name);
}
if(name != NULL)
{
list->strings[index].name = MS_Alloc(strlen(name)+1, ERR_OUT_OF_MEMORY);
strcpy(list->strings[index].name, name);
}
else
{
list->strings[index].name = NULL;
}
return index;
}
//==========================================================================
//
// STR_ListSize
//
//==========================================================================
int STR_ListSize(int list)
{
return LanguageInfo[list]->list.stringCount;
}
//==========================================================================
//
// STR_WriteStrings
//
// Writes all the strings to the p-code buffer.
//
//==========================================================================
void STR_WriteStrings(void)
{
int i;
U_INT pad;
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MS_Message(MSG_DEBUG, "---- STR_WriteStrings ----\n");
for(i = 0; i < LanguageInfo[0]->list.stringCount; i++)
{
LanguageInfo[0]->list.strings[i].address = pc_Address;
PC_AppendString(LanguageInfo[0]->list.strings[i].name);
}
if(pc_Address%4 != 0)
{ // Need to align
pad = 0;
PC_Append((void *)&pad, 4-(pc_Address%4));
}
}
//==========================================================================
//
// STR_WriteList
//
//==========================================================================
void STR_WriteList(void)
{
int i;
MS_Message(MSG_DEBUG, "---- STR_WriteList ----\n");
PC_AppendInt((U_INT)LanguageInfo[0]->list.stringCount);
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for(i = 0; i < LanguageInfo[0]->list.stringCount; i++)
{
PC_AppendInt((U_INT)LanguageInfo[0]->list.strings[i].address);
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}
}
//==========================================================================
//
// STR_WriteChunk
//
//==========================================================================
void STR_WriteChunk(int language, boolean encrypt)
{
languageInfo_t *lang = LanguageInfo[language];
int lenadr;
MS_Message(MSG_DEBUG, "---- STR_WriteChunk %d ----\n", language);
PC_Append(encrypt ? "STRE" : "STRL", 4);
lenadr = pc_Address;
PC_SkipInt();
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PC_Append(&lang->name, 4);
PC_AppendInt(lang->list.stringCount);
PC_AppendInt(0); // Used in-game for stringing lists together
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DumpStrings (&lang->list, lenadr, NO, encrypt);
}
//==========================================================================
//
// STR_WriteListChunk
//
//==========================================================================
void STR_WriteListChunk(int list, int id, boolean quad)
{
int lenadr;
if (StringLists[list] != NULL && StringLists[list]->stringCount > 0)
{
MS_Message(MSG_DEBUG, "---- STR_WriteListChunk %d %c%c%c%c----\n", list,
id&255, (id>>8)&255, (id>>16)&255, (id>>24)&255);
PC_AppendInt((U_INT)id);
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lenadr = pc_Address;
PC_SkipInt();
PC_AppendInt(StringLists[list]->stringCount);
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if (quad && pc_Address%8 != 0)
{ // If writing quadword indices, align the indices to an
// 8-byte boundary.
U_INT pad = 0;
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PC_Append (&pad, 4);
}
DumpStrings(StringLists[list], lenadr, quad, NO);
}
}
//==========================================================================
//
// DumpStrings
//
//==========================================================================
static void DumpStrings(stringList_t *list, int lenadr, boolean quad, boolean crypt)
{
int i, ofs, startofs;
startofs = ofs = pc_Address - lenadr - 4 + list->stringCount*(quad?8:4);
for(i = 0; i < list->stringCount; i++)
{
if (list->strings[i].name != NULL)
{
PC_AppendInt((U_INT)ofs);
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ofs += strlen(list->strings[i].name) + 1;
}
else
{
PC_AppendInt(0);
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}
if (quad)
{
PC_AppendInt(0);
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}
}
ofs = startofs;
for(i = 0; i < list->stringCount; i++)
{
if(list->strings[i].name != NULL)
{
int stringlen = strlen(list->strings[i].name) + 1;
if(crypt)
{
int cryptkey = ofs*157135;
Encrypt(list->strings[i].name, cryptkey, stringlen);
PC_Append(list->strings[i].name, stringlen);
ofs += stringlen;
Encrypt(list->strings[i].name, cryptkey, stringlen);
}
else
{
PC_AppendString(list->strings[i].name);
}
}
}
if(pc_Address%4 != 0)
{ // Need to align
U_INT pad = 0;
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PC_Append((void *)&pad, 4-(pc_Address%4));
}
PC_WriteInt(pc_Address - lenadr - 4, lenadr);
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}
static void Encrypt(void *data, int key, int len)
{
int p = (byte)key, i;
for(i = 0; i < len; ++i)
{
((byte *)data)[i] ^= (byte)(p+(i>>1));
}
}