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fteqw/engine/qclib/qcdecomp.c
Spoike fb214142a3 tcpconnect fixes 
lots of hexen2 fixes
fixed clipped decals again, still not using any...
fixed zips over 2g
rewrote bloom to use glsl. should be slightly more usable now.
lots more hexen2 fixes

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@3957 fc73d0e0-1445-4013-8a0c-d673dee63da5
2012-01-17 07:57:46 +00:00

1004 lines
26 KiB
C
Raw Blame History

#ifndef MINIMAL
#include "progsint.h"
#include "setjmp.h"
#define MAX_PARMS 8
// I put the following here to resolve "undefined reference to `__imp__vsnprintf'" with MinGW64 ~ Moodles
#ifdef _WIN32
#if (_MSC_VER >= 1400)
//with MSVC 8, use MS extensions
#define snprintf linuxlike_snprintf_vc8
int VARGS linuxlike_snprintf_vc8(char *buffer, int size, const char *format, ...) LIKEPRINTF(3);
#define vsnprintf(a, b, c, d) vsnprintf_s(a, b, _TRUNCATE, c, d)
#else
//msvc crap
#define snprintf linuxlike_snprintf
int VARGS linuxlike_snprintf(char *buffer, int size, const char *format, ...) LIKEPRINTF(3);
#define vsnprintf linuxlike_vsnprintf
int VARGS linuxlike_vsnprintf(char *buffer, int size, const char *format, va_list argptr);
#endif
#endif
typedef struct QCC_type_s
{
etype_t type;
struct QCC_type_s *next;
// function types are more complex
struct QCC_type_s *aux_type; // return type or field type
int num_parms; // -1 = variable args
// struct QCC_type_s *parm_types[MAX_PARMS]; // only [num_parms] allocated
int ofs; //inside a structure.
int size;
char *name;
} QCC_type_t;
extern QCC_type_t *qcc_typeinfo;
extern int numtypeinfos;
extern int maxtypeinfos;
extern QCC_type_t *type_void;// = {ev_void/*, &def_void*/};
extern QCC_type_t *type_string;// = {ev_string/*, &def_string*/};
extern QCC_type_t *type_float;// = {ev_float/*, &def_float*/};
extern QCC_type_t *type_vector;// = {ev_vector/*, &def_vector*/};
extern QCC_type_t *type_entity;// = {ev_entity/*, &def_entity*/};
extern QCC_type_t *type_field;// = {ev_field/*, &def_field*/};
extern QCC_type_t *type_function;// = {ev_function/*, &def_function*/,NULL,&type_void};
// type_function is a void() function used for state defs
extern QCC_type_t *type_pointer;// = {ev_pointer/*, &def_pointer*/};
extern QCC_type_t *type_integer;// = {ev_integer/*, &def_integer*/};
extern QCC_type_t *type_floatpointer;
extern QCC_type_t *type_intpointer;
extern QCC_type_t *type_floatfield;// = {ev_field/*, &def_field*/, NULL, &type_float};
QCC_type_t *QCC_PR_NewType (char *name, int basictype);
jmp_buf decompilestatementfailure;
#if 0
pbool Decompile(progfuncs_t *progfuncs, char *fname)
{
return false;
}
#else
QCC_type_t **ofstype;
qbyte *ofsflags;
int SafeOpenWrite (char *filename, int maxsize);
void SafeWrite(int hand, void *buf, long count);
int SafeSeek(int hand, int ofs, int mode);
void SafeClose(int hand);
void VARGS writes(int hand, char *msg, ...)
{
va_list va;
char buf[4192];
va_start(va, msg);
Q_vsnprintf (buf,sizeof(buf)-1, msg, va);
va_end(va);
SafeWrite(hand, buf, strlen(buf));
};
char *PR_UglyValueString (etype_t type, eval_t *val);
ddef16_t *ED_GlobalAtOfs16 (progfuncs_t *progfuncs, int ofs);
char *VarAtOfs(progfuncs_t *progfuncs, int ofs)
{
static char buf [4192];
ddef16_t *def;
int typen;
if (ofsflags[ofs]&8)
def = ED_GlobalAtOfs16(progfuncs, ofs);
else
def = NULL;
if (!def)
{
if (ofsflags[ofs]&3)
{
if (ofstype[ofs])
sprintf(buf, "_v_%s_%i", ofstype[ofs]->name, ofs);
else
sprintf(buf, "_v_%i", ofs);
}
else
{
if (ofstype[ofs])
{
typen = ofstype[ofs]->type;
goto evaluateimmediate;
}
else
sprintf(buf, "_c_%i", ofs);
}
return buf;
}
if (!def->s_name[progfuncs->stringtable] || !strcmp(progfuncs->stringtable+def->s_name, "IMMEDIATE"))
{
if (current_progstate->types)
typen = current_progstate->types[def->type & ~DEF_SHARED].type;
else
typen = def->type & ~(DEF_SHARED|DEF_SAVEGLOBAL);
evaluateimmediate:
// return PR_UglyValueString(def->type, (eval_t *)&current_progstate->globals[def->ofs]);
switch(typen)
{
case ev_float:
sprintf(buf, "%f", G_FLOAT(ofs));
return buf;
case ev_vector:
sprintf(buf, "\'%f %f %f\'", G_FLOAT(ofs), G_FLOAT(ofs+1), G_FLOAT(ofs+2));
return buf;
case ev_string:
{
char *s, *s2;
s = buf;
*s++ = '\"';
s2 = pr_strings+G_INT(ofs);
if (s2)
while(*s2)
{
if (*s2 == '\n')
{
*s++ = '\\';
*s++ = 'n';
s2++;
}
else if (*s2 == '\"')
{
*s++ = '\\';
*s++ = '\"';
s2++;
}
else if (*s2 == '\t')
{
*s++ = '\\';
*s++ = 't';
s2++;
}
else
*s++=*s2++;
}
*s++ = '\"';
*s++ = '\0';
}
return buf;
case ev_pointer:
sprintf(buf, "_c_pointer_%i", ofs);
return buf;
default:
sprintf(buf, "_c_%i", ofs);
return buf;
}
}
return def->s_name+progfuncs->stringtable;
}
int file;
int ImmediateReadLater(progfuncs_t *progfuncs, progstate_t *progs, unsigned int ofs, int firstst)
{
dstatement16_t *st;
if (ofsflags[ofs] & 8)
return false; //this is a global/local/pramater, not a temp
if (!(ofsflags[ofs] & 3))
return false; //this is a constant.
for (st = &((dstatement16_t*)progs->statements)[firstst]; ; st++,firstst++)
{ //if written, return false, if read, return true.
if (st->op >= OP_CALL0 && st->op <= OP_CALL8)
{
if (ofs == OFS_RETURN)
return false;
if (ofs < OFS_PARM0 + 3*((unsigned int)st->op - OP_CALL0))
return true;
}
else if (pr_opcodes[st->op].associative == ASSOC_RIGHT)
{
if (ofs == st->b)
return false;
if (ofs == st->a)
return true;
}
else
{
if (st->a == ofs)
return true;
if (st->b == ofs)
return true;
if (st->c == ofs)
return false;
}
if (st->op == OP_DONE || st->op == OP_RETURN) //we missed our chance. (return/done ends any code coherancy).
return false;
}
return false;
}
int ProductReadLater(progfuncs_t *progfuncs, progstate_t *progs, int stnum)
{
dstatement16_t *st;
st = &((dstatement16_t*)progs->statements)[stnum];
if (pr_opcodes[st->op].priority == -1)
{
if (st->op >= OP_CALL0 && st->op <= OP_CALL7)
return ImmediateReadLater(progfuncs, progs, OFS_RETURN, stnum+1);
return false;//these don't have products...
}
if (pr_opcodes[st->op].associative == ASSOC_RIGHT)
return ImmediateReadLater(progfuncs, progs, st->b, stnum+1);
else
return ImmediateReadLater(progfuncs, progs, st->c, stnum+1);
}
void WriteStatementProducingOfs(progfuncs_t *progfuncs, progstate_t *progs, int lastnum, int firstpossible, int ofs) //recursive, works backwards
{
int i;
dstatement16_t *st;
ddef16_t *def;
if (ofs == 0)
longjmp(decompilestatementfailure, 1);
for (; lastnum >= firstpossible; lastnum--)
{
st = &((dstatement16_t*)progs->statements)[lastnum];
if (st->op >= OP_CALL0 && st->op < OP_CALL7)
{
if (ofs != OFS_RETURN)
continue;
WriteStatementProducingOfs(progfuncs, progs, lastnum-1, firstpossible, st->a);
writes(file, "(");
for (i = 0; i < st->op - OP_CALL0; i++)
{
WriteStatementProducingOfs(progfuncs, progs, lastnum-1, firstpossible, OFS_PARM0 + i*3);
if (i != st->op - OP_CALL0-1)
writes(file, ", ");
}
writes(file, ")");
return;
}
else if (pr_opcodes[st->op].associative == ASSOC_RIGHT)
{
if (st->b != ofs)
continue;
if (!ImmediateReadLater(progfuncs, progs, st->b, lastnum+1))
{
writes(file, "(");
WriteStatementProducingOfs(progfuncs, progs, lastnum-1, firstpossible, st->b);
writes(file, " ");
writes(file, pr_opcodes[st->op].name);
writes(file, " ");
WriteStatementProducingOfs(progfuncs, progs, lastnum-1, firstpossible, st->a);
writes(file, ")");
return;
}
WriteStatementProducingOfs(progfuncs, progs, lastnum-1, firstpossible, st->a);
return;
}
else
{
if (st->c != ofs)
continue;
if (!ImmediateReadLater(progfuncs, progs, st->c, lastnum+1))
{
WriteStatementProducingOfs(progfuncs, progs, lastnum-1, firstpossible, st->c);
writes(file, " = ");
}
writes(file, "(");
WriteStatementProducingOfs(progfuncs, progs, lastnum-1, firstpossible, st->a);
if (!strcmp(pr_opcodes[st->op].name, "."))
writes(file, pr_opcodes[st->op].name); //extra spaces around .s are ugly.
else
{
writes(file, " ");
writes(file, pr_opcodes[st->op].name);
writes(file, " ");
}
WriteStatementProducingOfs(progfuncs, progs, lastnum-1, firstpossible, st->b);
writes(file, ")");
return;
}
}
def = ED_GlobalAtOfs16(progfuncs, ofs);
if (def)
{
if (!strcmp(def->s_name+progfuncs->stringtable, "IMMEDIATE"))
writes(file, "%s", VarAtOfs(progfuncs, ofs));
else
writes(file, "%s", progfuncs->stringtable+def->s_name);
}
else
writes(file, "%s", VarAtOfs(progfuncs, ofs));
// longjmp(decompilestatementfailure, 1);
}
int WriteStatement(progfuncs_t *progfuncs, progstate_t *progs, int stnum, int firstpossible)
{
int count, skip;
dstatement16_t *st;
st = &((dstatement16_t*)progs->statements)[stnum];
switch(st->op)
{
case OP_IFNOT_I:
count = (signed short)st->b;
writes(file, "if (");
WriteStatementProducingOfs(progfuncs, progs, stnum, firstpossible, st->a);
writes(file, ")\r\n");
writes(file, "{\r\n");
firstpossible = stnum+1;
count--;
stnum++;
while(count)
{
if (ProductReadLater(progfuncs, progs, stnum))
{
count--;
stnum++;
continue;
}
skip = WriteStatement(progfuncs, progs, stnum, firstpossible);
count-=skip;
stnum+=skip;
}
writes(file, "}\r\n");
st = &((dstatement16_t*)progs->statements)[stnum];
if (st->op == OP_GOTO)
{
count = (signed short)st->b;
count--;
stnum++;
writes(file, "else\r\n");
writes(file, "{\r\n");
while(count)
{
if (ProductReadLater(progfuncs, progs, stnum))
{
count--;
stnum++;
continue;
}
skip = WriteStatement(progfuncs, progs, stnum, firstpossible);
count-=skip;
stnum+=skip;
}
writes(file, "}\r\n");
}
break;
case OP_IF_I:
longjmp(decompilestatementfailure, 1);
break;
case OP_GOTO:
longjmp(decompilestatementfailure, 1);
break;
case OP_RETURN:
case OP_DONE:
if (st->a)
WriteStatementProducingOfs(progfuncs, progs, stnum-1, firstpossible, st->a);
break;
case OP_CALL0:
case OP_CALL1:
case OP_CALL2:
case OP_CALL3:
case OP_CALL4:
case OP_CALL5:
case OP_CALL6:
case OP_CALL7:
WriteStatementProducingOfs(progfuncs, progs, stnum, firstpossible, OFS_RETURN);
writes(file, ";\r\n");
break;
default:
if (pr_opcodes[st->op].associative == ASSOC_RIGHT)
WriteStatementProducingOfs(progfuncs, progs, stnum, firstpossible, st->b);
else
WriteStatementProducingOfs(progfuncs, progs, stnum, firstpossible, st->c);
writes(file, ";\r\n");
break;
}
return 1;
}
void WriteAsmStatements(progfuncs_t *progfuncs, progstate_t *progs, int num, int f, char *functionname)
{
int stn = progs->functions[num].first_statement;
QCC_opcode_t *op;
dstatement16_t *st = NULL;
eval_t *v;
ddef16_t *def;
int ofs,i;
int fileofs;
if (!functionname && stn<0)
{
//we wrote this one...
return;
}
if (stn>=0)
{
for (stn = progs->functions[num].first_statement; stn < (signed int)pr_progs->numstatements; stn++)
{
st = &((dstatement16_t*)progs->statements)[stn];
if (st->op == OP_DONE || st->op == OP_RETURN)
{
if (!st->a)
writes(f, "void(");
else if (ofstype[st->a])
{
writes(f, "%s", ofstype[st->a]->name);
writes(f, "(");
}
else
writes(f, "function(");
break;
}
}
st=NULL;
stn = progs->functions[num].first_statement;
}
else
writes(f, "function(");
for (ofs = progs->functions[num].parm_start, i = 0; i < progs->functions[num].numparms; i++, ofs+=progs->functions[num].parm_size[i])
{
ofsflags[ofs] |= 4;
def = ED_GlobalAtOfs16(progfuncs, ofs);
if (def && stn>=0)
{
if (st)
writes(f, ", ");
st = (void *)0xffff;
if (!def->s_name[progfuncs->stringtable])
{
char mem[64];
sprintf(mem, "_p_%i", def->ofs);
def->s_name = (char*)malloc(strlen(mem)+1)-progfuncs->stringtable;
strcpy(def->s_name+progfuncs->stringtable, mem);
}
if (current_progstate->types)
writes(f, "%s %s", current_progstate->types[def->type&~(DEF_SHARED|DEF_SAVEGLOBAL)].name, def->s_name);
else
switch(def->type&~(DEF_SHARED|DEF_SAVEGLOBAL))
{
case ev_string:
writes(f, "%s %s", "string", progfuncs->stringtable+def->s_name);
break;
case ev_float:
writes(f, "%s %s", "float", progfuncs->stringtable+def->s_name);
break;
case ev_entity:
writes(f, "%s %s", "entity", progfuncs->stringtable+def->s_name);
break;
case ev_vector:
writes(f, "%s %s", "vector", progfuncs->stringtable+def->s_name);
break;
default:
writes(f, "%s %s", "randomtype", progfuncs->stringtable+def->s_name);
break;
}
}
}
for (ofs = progs->functions[num].parm_start+progs->functions[num].numparms, i = progs->functions[num].numparms; i < progs->functions[num].locals; i++, ofs+=1)
ofsflags[ofs] |= 4;
if (!progfuncs->stringtable[progs->functions[num].s_name])
{
char mem[64];
if (!functionname)
{
sprintf(mem, "_bi_%i", num);
progs->functions[num].s_name = (char*)malloc(strlen(mem)+1)-progfuncs->stringtable;
strcpy(progs->functions[num].s_name+progfuncs->stringtable, mem);
}
else
{
progs->functions[num].s_name = (char*)malloc(strlen(functionname)+1)-progfuncs->stringtable;
strcpy(progs->functions[num].s_name+progfuncs->stringtable, functionname);
}
}
writes(f, ") %s", progfuncs->stringtable+progs->functions[num].s_name);
if (stn < 0)
{
stn*=-1;
writes(f, " = #%i;\r\n", stn);
/*
for (ofs = progs->functions[num].parm_start, i = 0; i < progs->functions[num].numparms; i++, ofs+=progs->functions[num].parm_size[i])
{
def = ED_GlobalAtOfs16(progfuncs, ofs);
if (def)
{
def->ofs = 0xffff;
if (progs->types)
{
if (progs->types[def->type & ~(DEF_SHARED|DEF_SAVEGLOBAL)].type == ev_vector)
{
def = ED_GlobalAtOfs16(progfuncs, ofs);
def->ofs = 0xffff;
def = ED_GlobalAtOfs16(progfuncs, ofs+1);
def->ofs = 0xffff;
def = ED_GlobalAtOfs16(progfuncs, ofs+2);
def->ofs = 0xffff;
}
}
else if ((def->type & (~(DEF_SHARED|DEF_SAVEGLOBAL))) == ev_vector)
{
def = ED_GlobalAtOfs16(progfuncs, ofs);
def->ofs = 0xffff;
def = ED_GlobalAtOfs16(progfuncs, ofs+1);
def->ofs = 0xffff;
def = ED_GlobalAtOfs16(progfuncs, ofs+2);
def->ofs = 0xffff;
}
}
}
*/
return;
}
if (functionname) //parsing defs
{
writes(f, ";\r\n");
return;
}
fileofs = SafeSeek(f, 0, SEEK_CUR);
if (setjmp(decompilestatementfailure))
{
writes(f, "*/\r\n");
// SafeSeek(f, fileofs, SEEK_SET);
writes(f, " = asm {\r\n");
stn = progs->functions[num].first_statement;
for (ofs = progs->functions[num].parm_start+progs->functions[num].numparms, i = progs->functions[num].numparms; i < progs->functions[num].locals; i++, ofs+=1)
{
def = ED_GlobalAtOfs16(progfuncs, ofs);
if (def)
{
v = (eval_t *)&((int *)progs->globals)[def->ofs];
if (current_progstate->types)
writes(f, "\tlocal %s %s;\r\n", current_progstate->types[def->type&~(DEF_SHARED|DEF_SAVEGLOBAL)].name, def->s_name);
else
{
if (!progfuncs->stringtable[def->s_name])
{
char mem[64];
sprintf(mem, "_l_%i", def->ofs);
def->s_name = (char*)malloc(strlen(mem)+1)-progfuncs->stringtable;
strcpy(def->s_name+progfuncs->stringtable, mem);
}
switch(def->type&~(DEF_SHARED|DEF_SAVEGLOBAL))
{
case ev_string:
writes(f, "\tlocal %s %s;\r\n", "string", progfuncs->stringtable+def->s_name);
break;
case ev_float:
writes(f, "\tlocal %s %s;\r\n", "float", progfuncs->stringtable+def->s_name);
break;
case ev_entity:
writes(f, "\tlocal %s %s;\r\n", "entity", progfuncs->stringtable+def->s_name);
break;
case ev_vector:
if (v->_vector[0] || v->_vector[1] || v->_vector[2])
writes(f, "\tlocal vector %s = '%f %f %f';\r\n", progfuncs->stringtable+def->s_name, v->_vector[0], v->_vector[1], v->_vector[2]);
else
writes(f, "\tlocal %s %s;\r\n", "vector", progfuncs->stringtable+def->s_name);
ofs+=2; //skip floats;
break;
default:
writes(f, "\tlocal %s %s;\r\n", "randomtype", progfuncs->stringtable+def->s_name);
break;
}
}
}
}
while(1)
{
st = &((dstatement16_t*)progs->statements)[stn];
if (!st->op) //end of function statement!
break;
op = &pr_opcodes[st->op];
writes(f, "\t%s", op->opname);
if (op->priority==-1&&op->associative==ASSOC_RIGHT) //last param is a goto
{
if (op->type_b == &type_void)
{
if (st->a)
writes(f, " %i", (signed short)st->a);
}
else if (op->type_c == &type_void)
{
if (st->a)
writes(f, " %s", VarAtOfs(progfuncs, st->a));
if (st->b)
writes(f, " %i", (signed short)st->b);
}
else
{
if (st->a)
writes(f, " %s", VarAtOfs(progfuncs, st->a));
if (st->b)
writes(f, " %s", VarAtOfs(progfuncs, st->b));
if (st->c) //rightness means it uses a as c
writes(f, " %i", (signed short)st->c);
}
}
else
{
if (st->a)
{
if (op->type_a == NULL)
writes(f, " %i", (signed short)st->a);
else
writes(f, " %s", VarAtOfs(progfuncs, st->a));
}
if (st->b)
{
if (op->type_b == NULL)
writes(f, " %i", (signed short)st->b);
else
writes(f, " %s", VarAtOfs(progfuncs, st->b));
}
if (st->c && op->associative != ASSOC_RIGHT) //rightness means it uses a as c
{
if (op->type_c == NULL)
writes(f, " %i", (signed short)st->c);
else
writes(f, " %s", VarAtOfs(progfuncs, st->c));
}
}
writes(f, ";\r\n");
stn++;
}
}
else
{
if (!strcmp(progfuncs->stringtable+progs->functions[num].s_name, "SUB_Remove"))
file = 0;
file = f;
writes(f, "/*\r\n");
writes(f, " =\r\n{\r\n");
for (ofs = progs->functions[num].parm_start+progs->functions[num].numparms, i = progs->functions[num].numparms; i < progs->functions[num].locals; i++, ofs+=1)
{
def = ED_GlobalAtOfs16(progfuncs, ofs);
if (def)
{
v = (eval_t *)&((int *)progs->globals)[def->ofs];
if (current_progstate->types)
writes(f, "\tlocal %s %s;\r\n", current_progstate->types[def->type&~(DEF_SHARED|DEF_SAVEGLOBAL)].name, def->s_name);
else
{
if (!def->s_name[progfuncs->stringtable])
{
char mem[64];
sprintf(mem, "_l_%i", def->ofs);
def->s_name = (char*)malloc(strlen(mem)+1)-progfuncs->stringtable;
strcpy(def->s_name+progfuncs->stringtable, mem);
}
switch(def->type&~(DEF_SHARED|DEF_SAVEGLOBAL))
{
case ev_string:
writes(f, "\tlocal %s %s;\r\n", "string", progfuncs->stringtable+def->s_name);
break;
case ev_float:
writes(f, "\tlocal %s %s;\r\n", "float", progfuncs->stringtable+def->s_name);
break;
case ev_entity:
writes(f, "\tlocal %s %s;\r\n", "entity", progfuncs->stringtable+def->s_name);
break;
case ev_vector:
if (v->_vector[0] || v->_vector[1] || v->_vector[2])
writes(f, "\tlocal vector %s = '%f %f %f';\r\n", progfuncs->stringtable+def->s_name, v->_vector[0], v->_vector[1], v->_vector[2]);
else
writes(f, "\tlocal %s %s;\r\n", "vector",progfuncs->stringtable+def->s_name);
ofs+=2; //skip floats;
break;
default:
writes(f, "\tlocal %s %s;\r\n", "randomtype", progfuncs->stringtable+def->s_name);
break;
}
}
}
}
for (stn = progs->functions[num].first_statement; stn < (signed int)pr_progs->numstatements; stn++)
{
if (ProductReadLater(progfuncs, progs, stn))
continue;
st = &((dstatement16_t*)progs->statements)[stn];
if (!st->op)
break;
WriteStatement(progfuncs, progs, stn, progs->functions[num].first_statement);
}
longjmp(decompilestatementfailure, 1);
}
writes(f, "};\r\n");
}
void FigureOutTypes(progfuncs_t *progfuncs)
{
ddef16_t *def;
QCC_opcode_t *op;
unsigned int i,p;
dstatement16_t *st;
int parmofs[8];
ofstype = realloc(ofstype, sizeof(*ofstype)*65535);
ofsflags = realloc(ofsflags, sizeof(*ofsflags)*65535);
maxtypeinfos=256;
qcc_typeinfo = (void *)realloc(qcc_typeinfo, sizeof(QCC_type_t)*maxtypeinfos);
numtypeinfos = 0;
memset(ofstype, 0, sizeof(*ofstype)*65535);
memset(ofsflags, 0, sizeof(*ofsflags)*65535);
type_void = QCC_PR_NewType("void", ev_void);
type_string = QCC_PR_NewType("string", ev_string);
type_float = QCC_PR_NewType("float", ev_float);
type_vector = QCC_PR_NewType("vector", ev_vector);
type_entity = QCC_PR_NewType("entity", ev_entity);
type_field = QCC_PR_NewType("field", ev_field);
type_function = QCC_PR_NewType("function", ev_function);
type_pointer = QCC_PR_NewType("pointer", ev_pointer);
type_integer = QCC_PR_NewType("integer", ev_integer);
// type_variant = QCC_PR_NewType("__variant", ev_variant);
type_floatfield = QCC_PR_NewType("fieldfloat", ev_field);
type_floatfield->aux_type = type_float;
type_pointer->aux_type = QCC_PR_NewType("pointeraux", ev_float);
type_function->aux_type = type_void;
for (i = 0,st = pr_statements16; i < pr_progs->numstatements; i++,st++)
{
op = &pr_opcodes[st->op];
if (st->op >= OP_CALL1 && st->op <= OP_CALL8)
{
for (p = 0; p < (unsigned int)st->op-OP_CALL0; p++)
{
ofstype[parmofs[p]] = ofstype[OFS_PARM0+p*3];
}
}
else if (op->associative == ASSOC_RIGHT)
{ //assignment
ofsflags[st->b] |= 1;
if (st->b >= OFS_PARM0 && st->b < RESERVED_OFS)
parmofs[(st->b-OFS_PARM0)/3] = st->a;
// if (st->op != OP_STORE_F || st->b>RESERVED_OFS) //optimising compilers fix the OP_STORE_V, it's the storef that becomes meaningless (this is the only time that we need this sort of info anyway)
{
if (op->type_c && op->type_c != &type_void)
ofstype[st->a] = *op->type_c;
if (op->type_b && op->type_b != &type_void)
ofstype[st->b] = *op->type_b;
}
}
else if (op->type_c)
{
ofsflags[st->c] |= 2;
if (st->c >= OFS_PARM0 && st->b < RESERVED_OFS) //too complicated
parmofs[(st->b-OFS_PARM0)/3] = 0;
// if (st->op != OP_STORE_F || st->b>RESERVED_OFS) //optimising compilers fix the OP_STORE_V, it's the storef that becomes meaningless (this is the only time that we need this sort of info anyway)
{
if (op->type_a && op->type_a != &type_void)
ofstype[st->a] = *op->type_a;
if (op->type_b && op->type_b != &type_void)
ofstype[st->b] = *op->type_b;
if (op->type_c && op->type_c != &type_void)
ofstype[st->c] = *op->type_c;
}
}
}
for (i=0 ; i<pr_progs->numglobaldefs ; i++)
{
def = &pr_globaldefs16[i];
ofsflags[def->ofs] |= 8;
switch(def->type)
{
case ev_float:
ofstype[def->ofs] = type_float;
break;
case ev_string:
ofstype[def->ofs] = type_string;
break;
case ev_vector:
ofstype[def->ofs] = type_vector;
break;
default:
break;
}
}
}
pbool Decompile(progfuncs_t *progfuncs, char *fname)
{
extern progfuncs_t *qccprogfuncs;
unsigned int i;
unsigned int fld=0;
eval_t *v;
// char *filename;
int f, type;
progstate_t progs, *op;
qccprogfuncs = progfuncs;
op=current_progstate;
if (!PR_ReallyLoadProgs(progfuncs, fname, -1, &progs, false))
{
return false;
}
f=SafeOpenWrite("qcdtest/defs.qc", 1024*512);
writes(f, "//Decompiled code can contain little type info.\r\n#define NOWARNINGS\r\n");
FigureOutTypes(progfuncs);
for (i = 1; i < progs.progs->numglobaldefs; i++)
{
if (!strcmp(progfuncs->stringtable+pr_globaldefs16[i].s_name, "IMMEDIATE"))
continue;
if (ofsflags[pr_globaldefs16[i].ofs] & 4)
continue; //this is a local.
if (current_progstate->types)
type = progs.types[pr_globaldefs16[i].type & ~(DEF_SHARED|DEF_SAVEGLOBAL)].type;
else
type = pr_globaldefs16[i].type & ~(DEF_SHARED|DEF_SAVEGLOBAL);
v = (eval_t *)&((int *)progs.globals)[pr_globaldefs16[i].ofs];
if (!progfuncs->stringtable[pr_globaldefs16[i].s_name])
{
char mem[64];
if (ofsflags[pr_globaldefs16[i].ofs] & 3)
{
ofsflags[pr_globaldefs16[i].ofs] &= ~8;
continue; //this is a constant...
}
sprintf(mem, "_g_%i", pr_globaldefs16[i].ofs);
pr_globaldefs16[i].s_name = (char*)malloc(strlen(mem)+1)-progfuncs->stringtable;
strcpy(pr_globaldefs16[i].s_name+progfuncs->stringtable, mem);
}
switch(type)
{
case ev_void:
writes(f, "void %s;\r\n", progfuncs->stringtable+pr_globaldefs16[i].s_name);
break;
case ev_string:
if (v->string && *(pr_strings+v->_int))
writes(f, "string %s = \"%s\";\r\n", progfuncs->stringtable+pr_globaldefs16[i].s_name, pr_strings+v->_int);
else
writes(f, "string %s;\r\n", progfuncs->stringtable+pr_globaldefs16[i].s_name);
break;
case ev_float:
if (v->_float)
writes(f, "float %s = %f;\r\n", progfuncs->stringtable+pr_globaldefs16[i].s_name, v->_float);
else
writes(f, "float %s;\r\n", progfuncs->stringtable+pr_globaldefs16[i].s_name);
break;
case ev_vector:
if (v->_vector[0] || v->_vector[1] || v->_vector[2])
writes(f, "vector %s = '%f %f %f';\r\n", progfuncs->stringtable+pr_globaldefs16[i].s_name, v->_vector[0], v->_vector[1], v->_vector[2]);
else
writes(f, "vector %s;\r\n", progfuncs->stringtable+pr_globaldefs16[i].s_name);
i+=3;//skip the floats
break;
case ev_entity:
writes(f, "entity %s;\r\n", progfuncs->stringtable+pr_globaldefs16[i].s_name);
break;
case ev_field:
//wierd
fld++;
if (!v->_int)
writes(f, "var ");
switch(pr_fielddefs16[fld].type)
{
case ev_string:
writes(f, ".string %s;", progfuncs->stringtable+pr_globaldefs16[i].s_name);
break;
case ev_float:
writes(f, ".float %s;", progfuncs->stringtable+pr_globaldefs16[i].s_name);
break;
case ev_vector:
writes(f, ".float %s;", progfuncs->stringtable+pr_globaldefs16[i].s_name);
break;
case ev_entity:
writes(f, ".float %s;", progfuncs->stringtable+pr_globaldefs16[i].s_name);
break;
case ev_function:
writes(f, ".void() %s;", progfuncs->stringtable+pr_globaldefs16[i].s_name);
break;
default:
writes(f, "field %s;", progfuncs->stringtable+pr_globaldefs16[i].s_name);
break;
}
if (v->_int)
writes(f, "/* %i */", v->_int);
writes(f, "\r\n");
break;
case ev_function:
//wierd
WriteAsmStatements(progfuncs, &progs, ((int *)progs.globals)[pr_globaldefs16[i].ofs], f, pr_globaldefs16[i].s_name+progfuncs->stringtable);
break;
case ev_pointer:
writes(f, "pointer %s;\r\n", progfuncs->stringtable+pr_globaldefs16[i].s_name);
break;
case ev_integer:
writes(f, "integer %s;\r\n", progfuncs->stringtable+pr_globaldefs16[i].s_name);
break;
case ev_union:
writes(f, "union %s;\r\n", progfuncs->stringtable+pr_globaldefs16[i].s_name);
break;
case ev_struct:
writes(f, "struct %s;\r\n", progfuncs->stringtable+pr_globaldefs16[i].s_name);
break;
default:
break;
}
}
for (i = 0; i < progs.progs->numfunctions; i++)
{
WriteAsmStatements(progfuncs, &progs, i, f, NULL);
}
SafeClose(f);
current_progstate=op;
return true;
}
#endif
#endif
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