mirror of
https://github.com/DrBeef/Raze.git
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963 lines
24 KiB
C++
963 lines
24 KiB
C++
//-------------------------------------------------------------------------
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/*
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Copyright (C) 2010-2019 EDuke32 developers and contributors
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Copyright (C) 2019 sirlemonhead, Nuke.YKT
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This file is part of NBlood.
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NBlood is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License version 2
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as published by the Free Software Foundation.
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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.
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See the GNU General Public License for more details.
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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
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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//-------------------------------------------------------------------------
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#include "ns.h" // Must come before everything else!
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#include "blood.h"
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#include "filesystem.h"
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BEGIN_BLD_NS
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// I don't think we still need these.
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enum
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{
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DICT_LOAD = 0,
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DICT_LOCK = 0,
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kMaxCmdLineDefines = 5,
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kMaxDefines = 1000,
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kMaxParseLevels = 5
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};
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static int nCmdDefines = 0;
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static int nDefines = 0;
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static int gParseLevel = 0;
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int dword_44CE0[kMaxParseLevels] = { 0, 0, 0, 0, 0 };
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// FIXME
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unsigned int nBytes = 0;
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char buffer[1024];
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int scriptValue = 0;
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char scriptBuffer[256];
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struct define_t
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{
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FString _text;
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int _value;
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};
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define_t gCmdDefines[kMaxCmdLineDefines];
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void addMemoryResource(char *fileName, char flags, int ID);
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struct tag_t {
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const char *_value;
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uint8_t _index;
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};
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enum eTags
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{
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kTag0,
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kTagEnd,
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kTagString,
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kTagConstant,
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kTag4, // string constant?
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kTagComma,
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kTagSemiColon,
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kTagColon,
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kTagEquals,
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kTagHash,
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kTagComment,
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kTagInclude,
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kTagResource,
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kTagAs,
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kTagPreload,
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kTagPrelock,
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kTagData,
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kTagLoad,
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kTagEmit,
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kTagIfDef,
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kTagEndif,
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kTagElse
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};
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tag_t tags[] =
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{
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{ ",", kTagComma },
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{ ";", kTagSemiColon },
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{ ":", kTagColon },
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{ "=", kTagEquals },
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{ "#", kTagHash },
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{ "//", kTagComment },
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{ "INCLUDE", kTagInclude },
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{ "RESOURCE", kTagResource },
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{ "AS", kTagAs },
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{ "PRELOAD", kTagPreload },
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{ "PRELOCK", kTagPrelock },
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{ "DATA", kTagData },
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{ "LOAD", kTagLoad },
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{ "EMIT", kTagEmit },
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{ "%ifdef", kTagIfDef },
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{ "%endif", kTagEndif },
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{ "%else", kTagElse }
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};
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const int kTagCount = sizeof(tags) / sizeof(tag_t);
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int qsort_compar(const void *a, const void *b)
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{
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return stricmp((const char*)a, (const char*)b);
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}
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void SortTags()
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{
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qsort(tags, kTagCount, sizeof(tag_t), qsort_compar);
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}
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void AddCmdDefine(char *text, int value)
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{
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assert(nCmdDefines < kMaxCmdLineDefines);
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gCmdDefines[nCmdDefines]._text = text;
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gCmdDefines[nCmdDefines]._value = value;
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nCmdDefines++;
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}
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static void SplitPath(const char *pzPath, char *pzDirectory, char *pzFile, char *pzType)
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{
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int const nLength = (int)strlen(pzPath);
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const char *pDot = NULL;
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for (int i = nLength-1; i >= 0; i--)
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{
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if (pzPath[i] == '/' || pzPath[i] == '\\')
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{
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strncpy(pzDirectory, pzPath, i);
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pzDirectory[i] = 0;
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if (!pDot)
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{
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strcpy(pzFile, pzPath+i+1);
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strcpy(pzType, "");
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}
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else
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{
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strncpy(pzFile, pzPath+i+1, pDot-(pzPath+i+1));
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pzFile[pDot-(pzPath+i+1)] = 0;
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strcpy(pzType, pDot+1);
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}
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return;
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}
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else if (pzPath[i] == '.')
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{
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pDot = pzPath+i;
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}
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}
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strcpy(pzDirectory, "/");
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if (!pDot)
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{
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strcpy(pzFile, pzPath);
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strcpy(pzType, "");
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}
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else
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{
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strncpy(pzFile, pzPath, pDot-pzPath);
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pzFile[pDot-pzPath] = 0;
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strcpy(pzType, pDot+1);
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}
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}
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// 174 bytes
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struct RFS
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{
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private:
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TArray<char> buffer;
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char *_ptr; // [0]
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char _curChar; // [4]
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char *_pUnknown2; // [5] - some sort of pointer into _ptr?
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char *_pStartLine; // [9]
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char *_pEnd; // [13]
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char *_pMark; // [17]
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char _unknown6; // [21]
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int _unknown7; // [22]
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int _curLine; // [26]
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char _fileName[BMAX_PATH]; // [30]
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public:
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int Open(int lumpnum);
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void Close();
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void Increment();
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void SkipBeyondValue(char value);
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uint8_t GetNextTag();
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void ScriptError(const char *message);
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void SetMark();
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void UnsetMark();
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};
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int RFS::Open(int lumpnum)
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{
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auto hFile = fileSystem.OpenFileReader(lumpnum);
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if (!hFile.isOpen()) {
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Printf("BARF: Error opening file %d", lumpnum);
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return 1;
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}
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int fileSize = (int)hFile.GetLength();
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buffer.Resize(fileSize+1);
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_ptr = buffer.Data();
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if (_ptr == NULL) {
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Printf("BARF: Not enough memory to read %d", lumpnum);
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return 1;
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}
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hFile.Read(_ptr, fileSize);
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buffer[fileSize] = '\n';
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_curLine = 0;
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_pUnknown2 = _ptr;
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_curChar = '\n';
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_pEnd = &_ptr[fileSize];
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return 0;
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}
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void RFS::Close()
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{
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}
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void RFS::Increment()
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{
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if (_curChar == '\n') {
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_curLine++;
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_pStartLine = _pUnknown2;
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}
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if (_pUnknown2 >= _pEnd) {
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_curChar = 0;
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}
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else {
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_curChar = *_pUnknown2; // grabs the next char
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_pUnknown2++; // increment pointer into char data
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}
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}
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void RFS::SkipBeyondValue(char nVal)
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{
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while (_curChar && _curChar != nVal) {
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Increment();
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}
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}
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void RFS::SetMark()
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{
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_pMark = _pUnknown2;
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_unknown6 = _curChar;
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_unknown7 = _curLine;
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}
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// inverse of the above function
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void RFS::UnsetMark()
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{
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_pUnknown2 = _pMark;
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_curChar = _unknown6;
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_curLine = _unknown7;
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}
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void RFS::ScriptError(const char *message)
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{
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// TODO
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TArray<char> msg;
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char *p = _pStartLine;
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while (*p != '\n')
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{
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if (isprint(*p))
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msg.Push(*p);
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else
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msg.Push(' ');
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p++;
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}
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msg.Push('\n');
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p = _pStartLine;
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while (p < _pMark)
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{
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msg.Push(' ');
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p++;
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}
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msg.Push('^');
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msg.Push(0);
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Printf("Error in %s line %d: %s\n\n%s", _fileName, _curLine, message, msg.Data());
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}
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uint8_t RFS::GetNextTag()
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{
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// skip any space characters
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do {
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Increment();
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} while (isspace(_curChar));
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if (_curChar == '\0') {
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return kTagEnd;
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}
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SetMark();
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// Path A
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if (_curChar == '"')
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{
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Increment();
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int i = 0;
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// section 1
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while (1) {
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if (_curChar == '\0' || _curChar == '"') {
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scriptBuffer[i] = '\0';
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return kTagString;
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}
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if (i == 256) {
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ScriptError("String exceeds maximum string length");
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break;
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}
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scriptBuffer[i] = _curChar;
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i++;
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Increment();
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}
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// section 2
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while (1)
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{
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if (_curChar == '\0' || _curChar == '"') {
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return kTag0;
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}
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Increment();
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}
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}
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else
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{
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scriptValue = 0;
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bool isNegative = false; // or 'isSigned' ?
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// is it a negative number?
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if (_curChar == '-')
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{
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Increment();
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isNegative = true;
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if (!isdigit(_curChar)) {
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UnsetMark();
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}
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}
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if (isdigit(_curChar))
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{
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// left path
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if (_curChar == '0')
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{
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Increment();
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// handle a hex value
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if (toupper(_curChar) == 'X')
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{
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// orange loop
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while (1)
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{
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Increment();
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if (!isxdigit(_curChar)) { // isxdigit() checks for a hex value
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break;
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}
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// hex version of atoi?
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scriptValue *= 16;
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if (!isdigit(_curChar)) {
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scriptValue += toupper(_curChar) - 55;
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}
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else {
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scriptValue += _curChar - '0';
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}
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SetMark();
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}
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UnsetMark();
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if (isNegative) {
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scriptValue = -scriptValue;
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}
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return kTagConstant;
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}
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UnsetMark();
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}
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// the loop
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while (isdigit(_curChar))
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{
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// atoi implementation
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scriptValue = scriptValue * 10 + _curChar - '0';
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SetMark();
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Increment();
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}
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UnsetMark();
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if (isNegative) {
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scriptValue = -scriptValue;
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}
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return kTagConstant;
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}
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else
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{
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// BLUEISH PATH
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int ebp = 0; // v11
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int i = 0;
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// blue loop #1
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while (1)
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{
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scriptBuffer[ebp] = _curChar;
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ebp++;
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int eax = -1;
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// blue loop #2
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for (i = 0; i < kTagCount; i++)
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{
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//if (eax >= 0) {
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if (eax == 0) {
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break;
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}
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// eax = strnicmp(tags[i]._value, scriptBuffer, ebp);
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eax = strnicmp(scriptBuffer, tags[i]._value, ebp);
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//if (eax >= 0) {
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if (eax == 0) {
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break;
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}
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}
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if (eax > 0 || i == kTagCount) {
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break;
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}
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if (eax == 0 && (int)strlen(tags[i]._value) == ebp)
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{
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scriptBuffer[ebp] = 0;
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return tags[i]._index;
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}
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Increment();
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}
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UnsetMark();
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i = 0;
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while (isalnum(_curChar))
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{
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scriptBuffer[i] = _curChar;
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SetMark();
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i++;
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Increment();
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}
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UnsetMark();
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scriptBuffer[i] = 0;
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return kTag4;
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}
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}
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// qAssert(1==0); // TODO - what to return here
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}
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void ParseScript(int lumpnum)
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{
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char text[256];
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char char256_1[256];
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char char256_2[256];
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char fileName[BMAX_PATH];
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char inp[BMAX_PATH];
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//char zScriptDirectory[BMAX_PATH], zTemp1[BMAX_PATH], zTemp2[BMAX_PATH];
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//SplitPath(scriptFileName, zScriptDirectory, zTemp1, zTemp2);
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RFS rfs;
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// AddExtension(name, ".RFS");
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if (rfs.Open(lumpnum))
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{
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return;
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}
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gParseLevel = 0;
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dword_44CE0[0] = 0;
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bool parsing = true;
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while (parsing)
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{
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// START LOOP. to be fixed later
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START:
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uint8_t tag = rfs.GetNextTag();
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switch (tag)
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{
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default:
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{
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break;
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}
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case kTagEnd:
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{
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parsing = false;
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break;
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}
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case kTagComment:
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{
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// skip to next line
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rfs.SkipBeyondValue('\n');
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break;
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}
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case kTagEmit: // minty/light green colour
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{
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tag = rfs.GetNextTag();
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if (tag != kTag4)
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{
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rfs.ScriptError("Symbol name expected");
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rfs.SkipBeyondValue(';');
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break;
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}
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else
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{
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strcpy(char256_2, scriptBuffer);
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tag = rfs.GetNextTag();
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if (tag != kTagEquals)
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{
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rfs.ScriptError("Missing '='");
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rfs.SkipBeyondValue(';');
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break;
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}
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tag = rfs.GetNextTag();
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if (tag != kTagConstant)
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{
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rfs.ScriptError("Constant expected");
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rfs.SkipBeyondValue(';');
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break;
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}
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else
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{
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//AddDefine(char256_2, scriptValue);
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rfs.SkipBeyondValue('\n');
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}
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}
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[[fallthrough]];
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}
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case kTagResource: // really light blue..
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{
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if (kTagString != rfs.GetNextTag()) {
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rfs.ScriptError("String constant exected");
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rfs.SkipBeyondValue('\n');
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break;
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}
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strcpy(inp, scriptBuffer);
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uint8_t nFlags = 0;
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int ID = 0;
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bool isDefine = false;
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tag = rfs.GetNextTag();
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if (tag == kTagAs)
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{
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tag = rfs.GetNextTag();
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if (tag == kTag4)
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{
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strcpy(text, scriptBuffer);
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if (rfs.GetNextTag() != kTagEquals)
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{
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rfs.ScriptError("Missing '='");
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rfs.SkipBeyondValue(';');
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break;
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}
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isDefine = true;
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tag = rfs.GetNextTag();
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}
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if (tag != kTagConstant)
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{
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rfs.ScriptError("Constant expected");
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rfs.SkipBeyondValue(';');
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break;
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}
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if (isDefine) {
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//AddDefine(text, scriptValue);
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}
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ID = scriptValue;
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tag = rfs.GetNextTag();
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}
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//if (!bNoEncrypt) {
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// nFlags |= kResFlagIsEncrypted;
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//}
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while (tag == kTagComma)
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{
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tag = rfs.GetNextTag();
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if (tag == kTagPreload) {
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nFlags |= DICT_LOAD;
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}
|
|
else if (tag == kTagPrelock) {
|
|
nFlags |= DICT_LOCK;
|
|
}
|
|
else {
|
|
rfs.ScriptError("Unrecognized flag");
|
|
rfs.SkipBeyondValue(';');
|
|
goto START; // FIXME
|
|
}
|
|
|
|
tag = rfs.GetNextTag();
|
|
}
|
|
|
|
if (tag != kTagSemiColon)
|
|
{
|
|
rfs.ScriptError("';' expected");
|
|
rfs.SkipBeyondValue(';');
|
|
break;
|
|
}
|
|
|
|
if (dword_44CE0[gParseLevel] == 0)
|
|
{
|
|
// In the RFS files I have seen the outermost directory is not part of what goes into the file system.
|
|
auto inp1 = strpbrk(inp, "/\\");
|
|
if (!inp1 || !fileSystem.CreatePathlessCopy(inp1 + 1, ID, nFlags))
|
|
{
|
|
// GDX spports this so we should, too.
|
|
fileSystem.CreatePathlessCopy(inp, ID, nFlags);
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
case kTagIfDef: // purplish colour
|
|
{
|
|
tag = rfs.GetNextTag();
|
|
if (tag != kTag4)
|
|
{
|
|
rfs.ScriptError("Parameter error in ifdef");
|
|
rfs.SkipBeyondValue('\n');
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
rfs.SetMark();
|
|
strcpy(char256_1, scriptBuffer);
|
|
|
|
bool bGotDefine = false;
|
|
|
|
// check if this was defined via command prompt arguments
|
|
for (int i = 0; i < nCmdDefines; i++)
|
|
{
|
|
if (stricmp(gCmdDefines[i]._text, char256_1) == 0) { // string is equivalent
|
|
bGotDefine = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// loc_11FC3:
|
|
gParseLevel++;
|
|
assert(gParseLevel < kMaxParseLevels);
|
|
|
|
if (bGotDefine) {
|
|
dword_44CE0[gParseLevel] = dword_44CE0[gParseLevel - 1];
|
|
}
|
|
else {
|
|
dword_44CE0[gParseLevel] = 1;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case kTagElse: // pinky colour
|
|
{
|
|
if (gParseLevel)
|
|
{
|
|
// loc_12066:
|
|
if (dword_44CE0[gParseLevel - 1] == 0) {
|
|
if (dword_44CE0[gParseLevel] == 0) {
|
|
dword_44CE0[gParseLevel] = 1;
|
|
}
|
|
|
|
rfs.SkipBeyondValue('\n');
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
rfs.ScriptError("Unexpected else");
|
|
rfs.SkipBeyondValue('\n');
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
case kTagEndif: // poo coloured
|
|
{
|
|
if (gParseLevel) {
|
|
gParseLevel--;
|
|
rfs.SkipBeyondValue('\n');
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
rfs.ScriptError("Unexpected Endif");
|
|
rfs.SkipBeyondValue('\n');
|
|
break;
|
|
}
|
|
}
|
|
case kTagHash: // gold colour
|
|
{
|
|
tag = rfs.GetNextTag();
|
|
if (tag == kTagInclude)
|
|
{
|
|
tag = rfs.GetNextTag();
|
|
if (tag != kTagString)
|
|
{
|
|
rfs.ScriptError("String constant exected");
|
|
// why no SkipBeyondValue?
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
// too dangerous if we want to cumulatively collect all RFS files
|
|
//fileSystem.Rehash();
|
|
//ParseScript(scriptBuffer);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case kTagData: // eg: data "AMB1.SFX" as 1: 80, 0x10000, 0x0, 1, -1, "amb1";
|
|
{
|
|
// green coloured section
|
|
if (rfs.GetNextTag() != kTagString) {
|
|
rfs.ScriptError("String constant expected");
|
|
rfs.SkipBeyondValue(';');
|
|
break;
|
|
}
|
|
|
|
// eg strcpy(fileName, "AMB1.SFX");
|
|
strcpy(fileName, scriptBuffer);
|
|
|
|
uint8_t nFlags = 0;
|
|
int ID = 0;
|
|
|
|
bool isDefine = false;
|
|
|
|
tag = rfs.GetNextTag();
|
|
|
|
// process an ID section
|
|
if (tag == kTagAs)
|
|
{
|
|
tag = rfs.GetNextTag();
|
|
if (tag == kTag4)
|
|
{
|
|
strcpy(fileName, scriptBuffer);
|
|
|
|
tag = rfs.GetNextTag();
|
|
if (tag != kTagEquals) {
|
|
rfs.ScriptError("Missing '='");
|
|
rfs.SkipBeyondValue(';');
|
|
break;
|
|
}
|
|
|
|
isDefine = true;
|
|
tag = rfs.GetNextTag();
|
|
}
|
|
|
|
if (tag != kTagConstant)
|
|
{
|
|
rfs.ScriptError("Constant Expected");
|
|
rfs.SkipBeyondValue(';');
|
|
break;
|
|
}
|
|
else {
|
|
//if (isDefine) {
|
|
// AddDefine(fileName, scriptValue);
|
|
//}
|
|
|
|
ID = scriptValue;
|
|
tag = rfs.GetNextTag();
|
|
}
|
|
}
|
|
|
|
if (tag == kTagComma)
|
|
{
|
|
// process all sections on this line that are comma separated
|
|
while (1)
|
|
{
|
|
tag = rfs.GetNextTag();
|
|
if (tag == kTagPreload)
|
|
{
|
|
nFlags |= DICT_LOAD;
|
|
tag = rfs.GetNextTag();
|
|
|
|
if (tag == kTagComma) {
|
|
continue;
|
|
}
|
|
}
|
|
else if (tag == kTagPrelock)
|
|
{
|
|
nFlags |= DICT_LOCK;
|
|
tag = rfs.GetNextTag();
|
|
|
|
if (tag == kTagComma) {
|
|
continue;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
rfs.ScriptError("Unrecognized flag");
|
|
rfs.SkipBeyondValue(';');
|
|
goto START; // FIXME
|
|
}
|
|
}
|
|
}
|
|
|
|
// loc_12471:
|
|
if (tag != kTagColon) // marked orange in IDA
|
|
{
|
|
while (1)
|
|
{
|
|
if (tag == kTagPreload)
|
|
{
|
|
nFlags |= DICT_LOAD;
|
|
tag = rfs.GetNextTag();
|
|
|
|
if (tag == kTagColon) {
|
|
break;
|
|
}
|
|
}
|
|
else if (tag == kTagPrelock)
|
|
{
|
|
nFlags |= DICT_LOCK;
|
|
tag = rfs.GetNextTag();
|
|
|
|
if (tag == kTagColon) {
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
rfs.ScriptError("':' expected");
|
|
rfs.SkipBeyondValue(';');
|
|
goto START; // FIXME
|
|
}
|
|
}
|
|
}
|
|
|
|
nBytes = 0;
|
|
|
|
// yellow loop
|
|
while (1)
|
|
{
|
|
tag = rfs.GetNextTag();
|
|
|
|
switch (tag)
|
|
{
|
|
case kTagString:
|
|
{
|
|
memcpy(&buffer[nBytes], scriptBuffer, strlen(scriptBuffer) + 1);
|
|
nBytes += (int)strlen(scriptBuffer) + 1;
|
|
break;
|
|
}
|
|
case kTagConstant:
|
|
{
|
|
memcpy(&buffer[nBytes], &scriptValue, sizeof(scriptValue));
|
|
nBytes += sizeof(scriptValue);
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
rfs.ScriptError("Constant expected");
|
|
rfs.SkipBeyondValue(';');
|
|
goto START; // FIXME
|
|
}
|
|
}
|
|
|
|
tag = rfs.GetNextTag();
|
|
if (tag != kTagComma) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (tag != kTagSemiColon) {
|
|
rfs.ScriptError("Semicolon expected");
|
|
rfs.SkipBeyondValue(';');
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
if (dword_44CE0[gParseLevel] == 0) {
|
|
addMemoryResource(fileName, nFlags, ID);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
//CreateHeader();
|
|
rfs.Close();
|
|
}
|
|
|
|
void addMemoryResource(char* filePath, char flags, int ID)
|
|
{
|
|
char zDirectory[BMAX_PATH];
|
|
char zFilename[BMAX_PATH];
|
|
char zType[BMAX_PATH];
|
|
|
|
SplitPath(filePath, zDirectory, zFilename, zType);
|
|
|
|
fileSystem.AddFromBuffer(zFilename, zType, buffer, nBytes, ID, flags);
|
|
}
|
|
|
|
|
|
void ReadAllRFS()
|
|
{
|
|
bool found = false;
|
|
auto numf = fileSystem.GetNumEntries();
|
|
for (int i = 0; i < numf; i++)
|
|
{
|
|
auto rl = fileSystem.GetResourceType(i);
|
|
if (!stricmp(rl, "RFS"))
|
|
{
|
|
ParseScript(i);
|
|
found = true;
|
|
}
|
|
}
|
|
if (found) fileSystem.InitHashChains();
|
|
}
|
|
END_BLD_NS
|