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OpenTTD-patches/src/newgrf_text.cpp

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/* $Id$ */
/** @file newgrf_text.cpp
* Implementation of Action 04 "universal holder" structure and functions.
* This file implements a linked-lists of strings,
* holding everything that the newgrf action 04 will send over to OpenTTD.
* One of the biggest problems is that Dynamic lang Array uses ISO codes
* as way to identifying current user lang, while newgrf uses bit shift codes
* not related to ISO. So equivalence functionnality had to be set.
*/
#include "stdafx.h"
#include "debug.h"
#include "openttd.h"
#include "string.h"
#include "variables.h"
#include "table/strings.h"
#include "newgrf.h"
#include "newgrf_text.h"
#include "table/control_codes.h"
#include "strings_func.h"
#define GRFTAB 28
#define TABSIZE 11
/**
* Explains the newgrf shift bit positionning.
* the grf base will not be used in order to find the string, but rather for
* jumping from standard langID scheme to the new one.
*/
enum grf_base_languages {
GRFLB_AMERICAN = 0x01,
GRFLB_ENGLISH = 0x02,
GRFLB_GERMAN = 0x04,
GRFLB_FRENCH = 0x08,
GRFLB_SPANISH = 0x10,
GRFLB_GENERIC = 0x80,
};
enum grf_extended_languages {
GRFLX_AMERICAN = 0x00,
GRFLX_ENGLISH = 0x01,
GRFLX_GERMAN = 0x02,
GRFLX_FRENCH = 0x03,
GRFLX_SPANISH = 0x04,
GRFLX_ESPERANTO = 0x05,
GRFLX_RUSSIAN = 0x07,
GRFLX_CZECH = 0x15,
GRFLX_SLOVAK = 0x16,
GRFLX_BULGARIAN = 0x18,
GRFLX_AFRIKAANS = 0x1B,
GRFLX_GREEK = 0x1E,
GRFLX_DUTCH = 0x1F,
GRFLX_CATALAN = 0x22,
GRFLX_HUNGARIAN = 0x24,
GRFLX_ITALIAN = 0x27,
GRFLX_ROMANIAN = 0x28,
GRFLX_ICELANDIC = 0x29,
GRFLX_LATVIAN = 0x2A,
GRFLX_LITHUANIAN = 0x2B,
GRFLX_SLOVENIAN = 0x2C,
GRFLX_DANISH = 0x2D,
GRFLX_SWEDISH = 0x2E,
GRFLX_NORWEGIAN = 0x2F,
GRFLX_POLISH = 0x30,
GRFLX_GALICIAN = 0x31,
GRFLX_FRISIAN = 0x32,
GRFLX_UKRAINIAN = 0x33,
GRFLX_ESTONIAN = 0x34,
GRFLX_FINNISH = 0x35,
GRFLX_PORTUGUESE = 0x36,
GRFLX_BRAZILIAN = 0x37,
GRFLX_CROATIAN = 0x38,
GRFLX_JAPANESE = 0x39,
GRFLX_KOREAN = 0x3A,
GRFLX_TURKISH = 0x3E,
GRFLX_UNSPECIFIED = 0x7F,
};
struct iso_grf {
char code[6];
byte grfLangID;
};
/**
* ISO code VS NewGrf langID conversion array.
* This array is used in two ways:
* 1-its ISO part is matching OpenTTD dynamic language id
* with newgrf bit positionning language id
* 2-its shift part is used to know what is the shift to
* watch for when inserting new strings, hence analysing newgrf langid
*/
const iso_grf iso_codes[] = {
{"en_US", GRFLX_AMERICAN},
{"en_GB", GRFLX_ENGLISH},
{"de_DE", GRFLX_GERMAN},
{"fr_FR", GRFLX_FRENCH},
{"es_ES", GRFLX_SPANISH},
{"af_ZA", GRFLX_AFRIKAANS},
{"hr_HR", GRFLX_CROATIAN},
{"cs_CZ", GRFLX_CZECH},
{"ca_ES", GRFLX_CATALAN},
{"da_DA", GRFLX_DANISH},
{"nl_NL", GRFLX_DUTCH},
{"et_ET", GRFLX_ESTONIAN},
{"fi_FI", GRFLX_FINNISH},
{"fy_NL", GRFLX_FRISIAN},
{"gl_ES", GRFLX_GALICIAN},
{"el_GR", GRFLX_GREEK},
{"hu_HU", GRFLX_HUNGARIAN},
{"is_IS", GRFLX_ICELANDIC},
{"it_IT", GRFLX_ITALIAN},
{"lv_LV", GRFLX_LATVIAN},
{"lt_LT", GRFLX_LITHUANIAN},
{"nb_NO", GRFLX_NORWEGIAN},
{"pl_PL", GRFLX_POLISH},
{"pt_PT", GRFLX_PORTUGUESE},
{"pt_BR", GRFLX_BRAZILIAN},
{"ro_RO", GRFLX_ROMANIAN},
{"ru_RU", GRFLX_RUSSIAN},
{"sk_SK", GRFLX_SLOVAK},
{"sl_SL", GRFLX_SLOVENIAN},
{"sv_SE", GRFLX_SWEDISH},
{"tr_TR", GRFLX_TURKISH},
{"uk_UA", GRFLX_UKRAINIAN},
{"eo_EO", GRFLX_ESPERANTO},
{"bg_BG", GRFLX_BULGARIAN},
{"ja_JP", GRFLX_JAPANESE},
{"ko_KR", GRFLX_KOREAN},
{"gen", GRFLB_GENERIC} ///< this is not iso code, but there has to be something...
};
/**
* Element of the linked list.
* Each of those elements represent the string,
* but according to a different lang.
*/
struct GRFText {
public:
static GRFText* New(byte langid, const char* text)
{
return new(strlen(text) + 1) GRFText(langid, text);
}
private:
GRFText(byte langid_, const char* text_) : next(NULL), langid(langid_)
{
strcpy(text, text_);
}
void* operator new(size_t size, size_t extra)
{
return ::operator new(size + extra);
}
public:
/* dummy operator delete to silence VC8:
* 'void *GRFText::operator new(size_t,size_t)' : no matching operator delete found;
* memory will not be freed if initialization throws an exception */
void operator delete(void *p, size_t extra)
{
return ::operator delete(p);
}
public:
GRFText *next;
byte langid;
char text[VARARRAY_SIZE];
};
/**
* Holder of the above structure.
* Putting both grfid and stringid together allows us to avoid duplicates,
* since it is NOT SUPPOSED to happen.
*/
struct GRFTextEntry {
uint32 grfid;
uint16 stringid;
StringID def_string;
GRFText *textholder;
};
static uint _num_grf_texts = 0;
static GRFTextEntry _grf_text[(1 << TABSIZE) * 3];
static byte _currentLangID = GRFLX_ENGLISH; ///< by default, english is used.
char *TranslateTTDPatchCodes(const char *str)
{
char *tmp = MallocT<char>(strlen(str) * 10 + 1); // Allocate space to allow for expansion
char *d = tmp;
bool unicode = false;
WChar c;
size_t len = Utf8Decode(&c, str);
if (c == 0x00DE) {
/* The thorn ('þ') indicates a unicode string to TTDPatch */
unicode = true;
str += len;
}
for (;;) {
if (unicode && Utf8EncodedCharLen(*str) != 0) {
c = Utf8Consume(&str);
/* 'Magic' range of control codes. */
if (GB(c, 8, 8) == 0xE0) c = GB(c, 0, 8);
} else {
c = (byte)*str++;
}
if (c == 0) break;
switch (c) {
case 0x01:
d += Utf8Encode(d, SCC_SETX);
*d++ = *str++;
break;
case 0x0A: break;
case 0x0D: *d++ = 0x0A; break;
case 0x0E: d += Utf8Encode(d, SCC_TINYFONT); break;
case 0x0F: d += Utf8Encode(d, SCC_BIGFONT); break;
case 0x1F:
d += Utf8Encode(d, SCC_SETXY);
*d++ = *str++;
*d++ = *str++;
break;
case 0x7B:
case 0x7C:
case 0x7D:
case 0x7E:
case 0x7F:
case 0x80: d += Utf8Encode(d, SCC_NEWGRF_PRINT_DWORD + c - 0x7B); break;
case 0x81: {
StringID string;
string = *str++;
string |= *str++ << 8;
d += Utf8Encode(d, SCC_STRING_ID);
d += Utf8Encode(d, string);
break;
}
case 0x82:
case 0x83:
case 0x84: d += Utf8Encode(d, SCC_NEWGRF_PRINT_WORD_SPEED + c - 0x82); break;
case 0x85: d += Utf8Encode(d, SCC_NEWGRF_DISCARD_WORD); break;
case 0x86: d += Utf8Encode(d, SCC_NEWGRF_ROTATE_TOP_4_WORDS); break;
case 0x87: d += Utf8Encode(d, SCC_NEWGRF_PRINT_WORD_LITRES); break;
case 0x88: d += Utf8Encode(d, SCC_BLUE); break;
case 0x89: d += Utf8Encode(d, SCC_SILVER); break;
case 0x8A: d += Utf8Encode(d, SCC_GOLD); break;
case 0x8B: d += Utf8Encode(d, SCC_RED); break;
case 0x8C: d += Utf8Encode(d, SCC_PURPLE); break;
case 0x8D: d += Utf8Encode(d, SCC_LTBROWN); break;
case 0x8E: d += Utf8Encode(d, SCC_ORANGE); break;
case 0x8F: d += Utf8Encode(d, SCC_GREEN); break;
case 0x90: d += Utf8Encode(d, SCC_YELLOW); break;
case 0x91: d += Utf8Encode(d, SCC_DKGREEN); break;
case 0x92: d += Utf8Encode(d, SCC_CREAM); break;
case 0x93: d += Utf8Encode(d, SCC_BROWN); break;
case 0x94: d += Utf8Encode(d, SCC_WHITE); break;
case 0x95: d += Utf8Encode(d, SCC_LTBLUE); break;
case 0x96: d += Utf8Encode(d, SCC_GRAY); break;
case 0x97: d += Utf8Encode(d, SCC_DKBLUE); break;
case 0x98: d += Utf8Encode(d, SCC_BLACK); break;
case 0x9A:
switch (*str++) {
case 0: /* FALL THROUGH */
case 1: d += Utf8Encode(d, SCC_NEWGRF_PRINT_QWORD_CURRENCY); break;
case 3: {
uint16 tmp = *str++;
tmp |= (*str++) << 8;
d += Utf8Encode(d, SCC_NEWGRF_PUSH_WORD); d += Utf8Encode(d, tmp);
} break;
case 4: d += Utf8Encode(d, SCC_NEWGRF_UNPRINT); d += Utf8Encode(d, *str++); break;
default: grfmsg(1, "missing handler for extended format code"); break;
}
break;
case 0x9E: d += Utf8Encode(d, 0x20AC); break; // Euro
case 0x9F: d += Utf8Encode(d, 0x0178); break; // Y with diaeresis
case 0xA0: d += Utf8Encode(d, SCC_UPARROW); break;
case 0xAA: d += Utf8Encode(d, SCC_DOWNARROW); break;
case 0xAC: d += Utf8Encode(d, SCC_CHECKMARK); break;
case 0xAD: d += Utf8Encode(d, SCC_CROSS); break;
case 0xAF: d += Utf8Encode(d, SCC_RIGHTARROW); break;
case 0xB4: d += Utf8Encode(d, SCC_TRAIN); break;
case 0xB5: d += Utf8Encode(d, SCC_LORRY); break;
case 0xB6: d += Utf8Encode(d, SCC_BUS); break;
case 0xB7: d += Utf8Encode(d, SCC_PLANE); break;
case 0xB8: d += Utf8Encode(d, SCC_SHIP); break;
default:
/* Validate any unhandled character */
if (!IsValidChar(c, CS_ALPHANUMERAL)) c = '?';
d += Utf8Encode(d, c);
break;
}
}
*d = '\0';
tmp = ReallocT(tmp, strlen(tmp) + 1);
return tmp;
}
/**
* Add the new read string into our structure.
*/
StringID AddGRFString(uint32 grfid, uint16 stringid, byte langid_to_add, bool new_scheme, const char *text_to_add, StringID def_string)
{
char *translatedtext;
uint id;
/* When working with the old language scheme (grf_version is less than 7) and
* English or American is among the set bits, simply add it as English in
* the new scheme, i.e. as langid = 1.
* If English is set, it is pretty safe to assume the translations are not
* actually translated.
*/
if (!new_scheme) {
if (HASBITS(langid_to_add, GRFLB_AMERICAN | GRFLB_ENGLISH)) {
langid_to_add = GRFLX_ENGLISH;
} else {
StringID ret = STR_EMPTY;
if (langid_to_add & GRFLB_GERMAN) ret = AddGRFString(grfid, stringid, GRFLX_GERMAN, true, text_to_add, def_string);
if (langid_to_add & GRFLB_FRENCH) ret = AddGRFString(grfid, stringid, GRFLX_FRENCH, true, text_to_add, def_string);
if (langid_to_add & GRFLB_SPANISH) ret = AddGRFString(grfid, stringid, GRFLX_SPANISH, true, text_to_add, def_string);
return ret;
}
}
for (id = 0; id < _num_grf_texts; id++) {
if (_grf_text[id].grfid == grfid && _grf_text[id].stringid == stringid) {
break;
}
}
/* Too many strings allocated, return empty */
if (id == lengthof(_grf_text)) return STR_EMPTY;
translatedtext = TranslateTTDPatchCodes(text_to_add);
GRFText *newtext = GRFText::New(langid_to_add, translatedtext);
free(translatedtext);
/* If we didn't find our stringid and grfid in the list, allocate a new id */
if (id == _num_grf_texts) _num_grf_texts++;
if (_grf_text[id].textholder == NULL) {
_grf_text[id].grfid = grfid;
_grf_text[id].stringid = stringid;
_grf_text[id].def_string = def_string;
_grf_text[id].textholder = newtext;
} else {
GRFText **ptext, *text;
bool replaced = false;
/* Loop through all languages and see if we can replace a string */
for (ptext = &_grf_text[id].textholder; (text = *ptext) != NULL; ptext = &text->next) {
if (text->langid != langid_to_add) continue;
newtext->next = text->next;
*ptext = newtext;
delete text;
replaced = true;
break;
}
/* If a string wasn't replaced, then we must append the new string */
if (!replaced) *ptext = newtext;
}
grfmsg(3, "Added 0x%X: grfid %08X string 0x%X lang 0x%X string '%s'", id, grfid, stringid, newtext->langid, newtext->text);
return (GRFTAB << TABSIZE) + id;
}
/* Used to remember the grfid that the last retrieved string came from */
static uint32 _last_grfid = 0;
/**
* Returns the index for this stringid associated with its grfID
*/
StringID GetGRFStringID(uint32 grfid, uint16 stringid)
{
uint id;
/* grfid is zero when we're being called via an include */
if (grfid == 0) grfid = _last_grfid;
for (id = 0; id < _num_grf_texts; id++) {
if (_grf_text[id].grfid == grfid && _grf_text[id].stringid == stringid) {
return (GRFTAB << TABSIZE) + id;
}
}
return STR_UNDEFINED;
}
char *GetGRFString(char *buff, uint16 stringid, const char* last)
{
const GRFText *default_text = NULL;
const GRFText *search_text;
assert(_grf_text[stringid].grfid != 0);
/* Remember this grfid in case the string has included text */
_last_grfid = _grf_text[stringid].grfid;
/*Search the list of lang-strings of this stringid for current lang */
for (search_text = _grf_text[stringid].textholder; search_text != NULL; search_text = search_text->next) {
if (search_text->langid == _currentLangID) {
return strecpy(buff, search_text->text, last);
}
/* If the current string is English or American, set it as the
* fallback language if the specific language isn't available. */
if (search_text->langid == GRFLX_UNSPECIFIED || (default_text == NULL && (search_text->langid == GRFLX_ENGLISH || search_text->langid == GRFLX_AMERICAN))) {
default_text = search_text;
}
}
/* If there is a fallback string, return that */
if (default_text != NULL) return strecpy(buff, default_text->text, last);
/* Use the default string ID if the fallback string isn't available */
return GetString(buff, _grf_text[stringid].def_string, last);
}
/**
* Equivalence Setter function between game and newgrf langID.
* This function will adjust _currentLangID as to what is the LangID
* of the current language set by the user.
* The array iso_codes will be used to find that match.
* If not found, it will have to be standard english
* This function is called after the user changed language,
* from strings.cpp:ReadLanguagePack
* @param iso_name iso code of current selection
*/
void SetCurrentGrfLangID(const char *iso_name)
{
/* Use English by default, if we can't match up the iso_code. */
byte ret = GRFLX_ENGLISH;
byte i;
for (i=0; i < lengthof(iso_codes); i++) {
if (strncmp(iso_codes[i].code, iso_name, strlen(iso_codes[i].code)) == 0) {
/* We found a match, so let's use it. */
ret = iso_codes[i].grfLangID;
break;
}
}
_currentLangID = ret;
}
bool CheckGrfLangID(byte lang_id, byte grf_version)
{
if (grf_version < 7) {
switch (_currentLangID) {
case GRFLX_GERMAN: return (lang_id & GRFLB_GERMAN) != 0;
case GRFLX_FRENCH: return (lang_id & GRFLB_FRENCH) != 0;
case GRFLX_SPANISH: return (lang_id & GRFLB_SPANISH) != 0;
default: return (lang_id & (GRFLB_ENGLISH | GRFLB_AMERICAN)) != 0;
}
}
return (lang_id == _currentLangID || lang_id == GRFLX_UNSPECIFIED);
}
/**
* House cleaning.
* Remove all strings and reset the text counter.
*/
void CleanUpStrings()
{
uint id;
for (id = 0; id < _num_grf_texts; id++) {
GRFText *grftext = _grf_text[id].textholder;
while (grftext != NULL) {
GRFText *grftext2 = grftext->next;
delete grftext;
grftext = grftext2;
}
_grf_text[id].grfid = 0;
_grf_text[id].stringid = 0;
_grf_text[id].textholder = NULL;
}
_num_grf_texts = 0;
}
struct TextRefStack {
byte stack[0x30];
byte position;
bool used;
TextRefStack() : used(false) {}
uint8 PopUnsignedByte() { assert(this->position < lengthof(this->stack)); return this->stack[this->position++]; }
int8 PopSignedByte() { return (int8)this->PopUnsignedByte(); }
uint16 PopUnsignedWord()
{
uint16 val = this->PopUnsignedByte();
return val | (this->PopUnsignedByte() << 8);
}
int16 PopSignedWord() { return (int32)this->PopUnsignedWord(); }
uint32 PopUnsignedDWord()
{
uint32 val = this->PopUnsignedWord();
return val | (this->PopUnsignedWord() << 16);
}
int32 PopSignedDWord() { return (int32)this->PopUnsignedDWord(); }
uint64 PopUnsignedQWord()
{
uint64 val = this->PopUnsignedDWord();
return val | (((uint64)this->PopUnsignedDWord()) << 32);
}
int64 PopSignedQWord() { return (int64)this->PopUnsignedQWord(); }
/** Rotate the top four words down: W1, W2, W3, W4 -> W4, W1, W2, W3 */
void RotateTop4Words()
{
byte tmp[2];
for (int i = 0; i < 2; i++) tmp[i] = this->stack[this->position + i + 6];
for (int i = 5; i >= 0; i--) this->stack[this->position + i + 2] = this->stack[this->position + i];
for (int i = 0; i < 2; i++) this->stack[this->position + i] = tmp[i];
}
void PushWord(uint16 word)
{
if (this->position >= 2) {
this->position -= 2;
} else {
for (uint i = lengthof(stack) - 3; i >= this->position; i--) {
this->stack[this->position + 2] = this->stack[this->position];
}
}
this->stack[this->position] = GB(word, 0, 8);
this->stack[this->position + 1] = GB(word, 8, 8);
}
void ResetStack() { this->position = 0; this->used = true; }
void RewindStack() { this->position = 0; }
};
static TextRefStack _newgrf_normal_textrefstack;
static TextRefStack _newgrf_error_textrefstack;
/** The stack that is used for TTDP compatible string code parsing */
static TextRefStack *_newgrf_textrefstack = &_newgrf_normal_textrefstack;
/**
* Prepare the TTDP compatible string code parsing
* @param numEntries number of entries to copy from the registers
*/
void PrepareTextRefStackUsage(byte numEntries)
{
extern TemporaryStorageArray<uint32, 0x110> _temp_store;
_newgrf_textrefstack->ResetStack();
byte *p = _newgrf_textrefstack->stack;
for (uint i = 0; i < numEntries; i++) {
for (uint j = 0; j < 32; j += 8) {
*p = GB(_temp_store.Get(0x100 + i), j, 8);
p++;
}
}
}
/** Stop using the TTDP compatible string code parsing */
void StopTextRefStackUsage() { _newgrf_textrefstack->used = false; }
void SwitchToNormalRefStack()
{
_newgrf_textrefstack = &_newgrf_normal_textrefstack;
}
void SwitchToErrorRefStack()
{
_newgrf_textrefstack = &_newgrf_error_textrefstack;
}
void RewindTextRefStack()
{
_newgrf_textrefstack->RewindStack();
}
/**
* FormatString for NewGRF specific "magic" string control codes
* @param scc the string control code that has been read
* @param stack the current "stack"
* @return the string control code to "execute" now
*/
uint RemapNewGRFStringControlCode(uint scc, char **buff, const char **str, int64 *argv)
{
if (_newgrf_textrefstack->used) {
switch (scc) {
default: NOT_REACHED();
case SCC_NEWGRF_PRINT_SIGNED_BYTE: *argv = _newgrf_textrefstack->PopSignedByte(); break;
case SCC_NEWGRF_PRINT_SIGNED_WORD: *argv = _newgrf_textrefstack->PopSignedWord(); break;
case SCC_NEWGRF_PRINT_QWORD_CURRENCY: *argv = _newgrf_textrefstack->PopUnsignedQWord(); break;
case SCC_NEWGRF_PRINT_DWORD_CURRENCY:
case SCC_NEWGRF_PRINT_DWORD: *argv = _newgrf_textrefstack->PopSignedDWord(); break;
case SCC_NEWGRF_PRINT_WORD_SPEED:
case SCC_NEWGRF_PRINT_WORD_LITRES:
case SCC_NEWGRF_PRINT_UNSIGNED_WORD: *argv = _newgrf_textrefstack->PopUnsignedWord(); break;
case SCC_NEWGRF_PRINT_DATE:
case SCC_NEWGRF_PRINT_MONTH_YEAR: *argv = _newgrf_textrefstack->PopSignedWord() + DAYS_TILL_ORIGINAL_BASE_YEAR; break;
case SCC_NEWGRF_DISCARD_WORD: _newgrf_textrefstack->PopUnsignedWord(); break;
case SCC_NEWGRF_ROTATE_TOP_4_WORDS: _newgrf_textrefstack->RotateTop4Words(); break;
case SCC_NEWGRF_PUSH_WORD: _newgrf_textrefstack->PushWord(Utf8Consume(str)); break;
case SCC_NEWGRF_UNPRINT: *buff -= Utf8Consume(str); break;
case SCC_NEWGRF_PRINT_STRING_ID:
*argv = _newgrf_textrefstack->PopUnsignedWord();
if (*argv == STR_NULL) *argv = STR_EMPTY;
break;
}
}
switch (scc) {
default: NOT_REACHED();
case SCC_NEWGRF_PRINT_DWORD:
case SCC_NEWGRF_PRINT_SIGNED_WORD:
case SCC_NEWGRF_PRINT_SIGNED_BYTE:
case SCC_NEWGRF_PRINT_UNSIGNED_WORD:
return SCC_NUM;
case SCC_NEWGRF_PRINT_DWORD_CURRENCY:
case SCC_NEWGRF_PRINT_QWORD_CURRENCY:
return SCC_CURRENCY;
case SCC_NEWGRF_PRINT_STRING_ID:
return SCC_STRING1;
case SCC_NEWGRF_PRINT_DATE:
return SCC_DATE_LONG;
case SCC_NEWGRF_PRINT_MONTH_YEAR:
return SCC_DATE_TINY;
case SCC_NEWGRF_PRINT_WORD_SPEED:
return SCC_VELOCITY;
case SCC_NEWGRF_PRINT_WORD_LITRES:
return SCC_VOLUME;
case SCC_NEWGRF_DISCARD_WORD:
case SCC_NEWGRF_ROTATE_TOP_4_WORDS:
case SCC_NEWGRF_PUSH_WORD:
case SCC_NEWGRF_UNPRINT:
return 0;
}
}
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