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fteqw/engine/qclib/pr_exec.c
Spoike 9cd988a836 Added csqc->ssqc requests. 
Fixed up cl_indepphysics. Sending is fully independent, bar sync points.
Fixed so #if 0 works in qc code.
Fixed up error conditions in qclib when features are not supported.
The webpage generator will now refcount properly.
Fixed error conditions when using glsl shaders.
If MULTITHREAD is defined, r_loadlit will not light inside a separate thread.
We now generate VBOs for bsp objects. Shaders/rtlights don't use them yet.
Fixed up MVD/multiview playback a bit. It now looks like it works! (cl_hightrack will no longer track the same person in all views).
Fixed error conditions when attempting to download versioned csprogs.
Reduced the number of places that a q3-style marked up string is expanded. I think there are a couple places left still though. Approximated ezquake colour codes.
Memory mapped read file access in win32, where we can. Not sure about this. Lets see how things pan out.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@3195 fc73d0e0-1445-4013-8a0c-d673dee63da5
2009-05-24 10:11:17 +00:00

1197 lines
26 KiB
C
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#define PROGSUSED
#include "progsint.h"
//#include "editor.h"
#define HunkAlloc BADGDFG sdfhhsf FHS
#define Host_Error Sys_Error
//=============================================================================
/*
=================
PR_PrintStatement
=================
*/
/*
void PR_PrintStatement (progfuncs_t *progfuncs, dstatement16_t *s)
{
int i;
printf("PR_PrintStatement is unsupported\n");
return;
if ( (unsigned)s->op < OP_NUMOPS)
{
printf ("%s ", pr_opcodes[s->op].name);
i = strlen(pr_opcodes[s->op].name);
for ( ; i<10 ; i++)
printf (" ");
}
if (s->op == OP_IF || s->op == OP_IFNOT)
printf ("%sbranch %i",PR_GlobalString(progfuncs, s->a),s->b);
else if (s->op == OP_GOTO)
{
printf ("branch %i",s->a);
}
else if ( (unsigned)(s->op - OP_STORE_F) < 6)
{
printf ("%s",PR_GlobalString(progfuncs, s->a));
printf ("%s", PR_GlobalStringNoContents(progfuncs, s->b));
}
else
{
if (s->a)
printf ("%s",PR_GlobalString(progfuncs, s->a));
if (s->b)
printf ("%s",PR_GlobalString(progfuncs, s->b));
if (s->c)
printf ("%s", PR_GlobalStringNoContents(progfuncs, s->c));
}
printf ("\n");
}
*/
/*
============
PR_StackTrace
============
*/
char *QC_ucase(char *str)
{
static char s[1024];
strcpy(s, str);
str = s;
while(*str)
{
if (*str >= 'a' && *str <= 'z')
*str = *str - 'a' + 'A';
str++;
}
return s;
}
void PR_StackTrace (progfuncs_t *progfuncs)
{
dfunction_t *f;
int i;
int progs;
#ifdef STACKTRACE
int arg;
int *globalbase;
#endif
progs = -1;
if (pr_depth == 0)
{
printf ("<NO STACK>\n");
return;
}
#ifdef STACKTRACE
globalbase = (int *)pr_globals + pr_xfunction->parm_start - pr_xfunction->locals;
#endif
pr_stack[pr_depth].f = pr_xfunction;
pr_stack[pr_depth].s = pr_xstatement;
for (i=pr_depth ; i>0 ; i--)
{
f = pr_stack[i].f;
if (!f)
{
printf ("<NO FUNCTION>\n");
}
else
{
if (pr_stack[i].progsnum != progs)
{
progs = pr_stack[i].progsnum;
printf ("<%s>\n", pr_progstate[progs].filename);
}
if (!f->s_file)
printf ("stripped : %s\n", f->s_name+progfuncs->stringtable);
else
{
if (pr_progstate[progs].linenums)
printf ("%12s %i : %s\n", f->s_file+progfuncs->stringtable, pr_progstate[progs].linenums[pr_stack[i].s], f->s_name+progfuncs->stringtable);
else
printf ("%12s : %s\n", f->s_file+progfuncs->stringtable, f->s_name+progfuncs->stringtable);
}
#ifdef STACKTRACE
for (arg = 0; arg < f->locals; arg++)
{
ddef16_t *local;
local = ED_GlobalAtOfs16(progfuncs, f->parm_start+arg);
if (!local)
{
printf(" ofs %i: %f : %i\n", f->parm_start+arg, *(float *)(globalbase - f->locals+arg), *(int *)(globalbase - f->locals+arg) );
}
else
{
printf(" %s: %s\n", local->s_name+progfuncs->stringtable, PR_ValueString(progfuncs, local->type, (eval_t*)(globalbase - f->locals+arg)));
if (local->type == ev_vector)
arg+=2;
}
}
if (i == pr_depth)
globalbase = localstack + localstack_used;
else
globalbase -= f->locals;
#endif
}
}
}
/*
============
PR_Profile_f
============
*/
/*
void PR_Profile_f (void)
{
dfunction_t *f, *best;
int max;
int num;
unsigned int i;
num = 0;
do
{
max = 0;
best = NULL;
for (i=0 ; i<pr_progs->numfunctions ; i++)
{
f = &pr_functions[i];
if (f->profile > max && f->first_statement >=0)
{
max = f->profile;
best = f;
}
}
if (best)
{
if (num < 10)
printf ("%7i %s\n", best->profile, best->s_name);
num++;
best->profile = 0;
}
} while (best);
}
*/
/*
============
PR_RunError
Aborts the currently executing function
============
*/
void VARGS PR_RunError (progfuncs_t *progfuncs, char *error, ...)
{
va_list argptr;
char string[1024];
va_start (argptr,error);
Q_vsnprintf (string,sizeof(string)-1, error,argptr);
va_end (argptr);
// {
// void SV_EndRedirect (void);
// SV_EndRedirect();
// }
// PR_PrintStatement (pr_statements + pr_xstatement);
PR_StackTrace (progfuncs);
printf ("\n");
//editbadfile(pr_strings + pr_xfunction->s_file, -1);
// pr_depth = 0; // dump the stack so host_error can shutdown functions
// prinst->exitdepth = 0;
Abort ("%s", string);
}
/*
============================================================================
PR_ExecuteProgram
The interpretation main loop
============================================================================
*/
/*
====================
PR_EnterFunction
Returns the new program statement counter
====================
*/
void PR_AbortStack (progfuncs_t *progfuncs);
int PR_EnterFunction (progfuncs_t *progfuncs, dfunction_t *f, int progsnum)
{
int i, j, c, o;
pr_stack[pr_depth].s = pr_xstatement;
pr_stack[pr_depth].f = pr_xfunction;
pr_stack[pr_depth].progsnum = progsnum;
pr_stack[pr_depth].pushed = pr_spushed;
pr_depth++;
if (pr_depth == MAX_STACK_DEPTH)
{
pr_depth--;
PR_StackTrace (progfuncs);
printf ("stack overflow on call to %s\n", progfuncs->stringtable+f->s_name);
//comment this out if you want the progs to try to continue anyway (could cause infinate loops)
PR_AbortStack(progfuncs);
Abort("Stack Overflow in %s\n", progfuncs->stringtable+f->s_name);
return pr_xstatement;
}
localstack_used += pr_spushed; //make sure the call doesn't hurt pushed pointers
// save off any locals that the new function steps on (to a side place, fromwhere they are restored on exit)
c = f->locals;
if (localstack_used + c > LOCALSTACK_SIZE)
{
localstack_used -= pr_spushed;
pr_depth--;
PR_RunError (progfuncs, "PR_ExecuteProgram: locals stack overflow\n");
}
for (i=0 ; i < c ; i++)
localstack[localstack_used+i] = ((int *)pr_globals)[f->parm_start + i];
localstack_used += c;
// copy parameters (set initial values)
o = f->parm_start;
for (i=0 ; i<f->numparms ; i++)
{
for (j=0 ; j<f->parm_size[i] ; j++)
{
((int *)pr_globals)[o] = ((int *)pr_globals)[OFS_PARM0+i*3+j];
o++;
}
}
pr_xfunction = f;
return f->first_statement - 1; // offset the s++
}
/*
====================
PR_LeaveFunction
====================
*/
int PR_LeaveFunction (progfuncs_t *progfuncs)
{
int i, c;
if (pr_depth <= 0)
Sys_Error ("prog stack underflow");
// restore locals from the stack
c = pr_xfunction->locals;
localstack_used -= c;
if (localstack_used < 0)
PR_RunError (progfuncs, "PR_ExecuteProgram: locals stack underflow\n");
for (i=0 ; i < c ; i++)
((int *)pr_globals)[pr_xfunction->parm_start + i] = localstack[localstack_used+i];
// up stack
pr_depth--;
PR_MoveParms(progfuncs, pr_stack[pr_depth].progsnum, pr_typecurrent);
PR_SwitchProgs(progfuncs, pr_stack[pr_depth].progsnum);
pr_xfunction = pr_stack[pr_depth].f;
pr_spushed = pr_stack[pr_depth].pushed;
localstack_used -= pr_spushed;
return pr_stack[pr_depth].s;
}
ddef32_t *ED_FindLocalOrGlobal(progfuncs_t *progfuncs, char *name, eval_t **val)
{
static ddef32_t def;
ddef32_t *def32;
ddef16_t *def16;
int i;
switch (pr_progstate[pr_typecurrent].intsize)
{
case 16:
case 24:
//this gets parms fine, but not locals
if (pr_xfunction)
for (i = 0; i < pr_xfunction->numparms; i++)
{
def16 = ED_GlobalAtOfs16(progfuncs, pr_xfunction->parm_start+i);
if (!def16)
continue;
if (!strcmp(def16->s_name+progfuncs->stringtable, name))
{
*val = (eval_t *)&pr_progstate[pr_typecurrent].globals[pr_xfunction->parm_start+i];
//we need something like this for functions that are not the top layer
// *val = (eval_t *)&localstack[localstack_used-pr_xfunction->numparms*4];
def.ofs = def16->ofs;
def.s_name = def16->s_name;
def.type = def16->type;
return &def;
}
}
def16 = ED_FindGlobal16(progfuncs, name);
if (!def16)
return NULL;
def.ofs = def16->ofs;
def.type = def16->type;
def.s_name = def16->s_name;
def32 = &def;
break;
case 32:
//this gets parms fine, but not locals
if (pr_xfunction)
for (i = 0; i < pr_xfunction->numparms; i++)
{
def32 = ED_GlobalAtOfs32(progfuncs, pr_xfunction->parm_start+i);
if (!def32)
continue;
if (!strcmp(def32->s_name+progfuncs->stringtable, name))
{
*val = (eval_t *)&pr_progstate[pr_typecurrent].globals[pr_xfunction->parm_start+i];
//we need something like this for functions that are not the top layer
// *val = (eval_t *)&localstack[localstack_used-pr_xfunction->numparms*4];
return def32;
}
}
def32 = ED_FindGlobal32(progfuncs, name);
if (!def32)
return NULL;
break;
default:
Sys_Error("Bad int size in ED_FindLocalOrGlobal");
def32 = NULL;
}
*val = (eval_t *)&pr_progstate[pr_typecurrent].globals[def32->ofs];
return &def;
}
char *COM_TrimString(char *str)
{
int i;
static char buffer[256];
while (*str <= ' ' && *str>'\0')
str++;
for (i = 0; i < 255; i++)
{
if (*str <= ' ')
break;
buffer[i] = *str++;
}
buffer[i] = '\0';
return buffer;
}
#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, ...);
#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, ...);
#define vsnprintf linuxlike_vsnprintf
int VARGS linuxlike_vsnprintf(char *buffer, int size, const char *format, va_list argptr);
#endif
#ifdef _MSC_VER
//these are provided so we don't use them
//but mingw has some defines elsewhere and makes gcc moan
#define _vsnprintf unsafe_vsnprintf
#define _snprintf unsafe_snprintf
#endif
#endif
char *EvaluateDebugString(progfuncs_t *progfuncs, char *key)
{
static char buf[256];
char *c, *c2;
ddef32_t *def;
fdef_t *fdef;
eval_t *val;
char *assignment;
int type;
ddef32_t fakedef;
eval_t fakeval;
assignment = strchr(key, '=');
if (assignment)
*assignment = '\0';
c = strchr(key, '.');
if (c) *c = '\0';
def = ED_FindLocalOrGlobal(progfuncs, key, &val);
if (!def)
{
if (atoi(key))
{
def = &fakedef;
def->ofs = 0;
def->type = ev_entity;
val = &fakeval;
val->edict = atoi(key);
}
}
if (c) *c = '.';
if (!def)
{
return "(Bad string)";
}
type = def->type;
//go through ent vars
c = strchr(key, '.');
while(c)
{
c2 = c+1;
c = strchr(c2, '.');
type = type &~DEF_SAVEGLOBAL;
if (current_progstate->types)
type = current_progstate->types[type].type;
if (type != ev_entity)
return "'.' without entity";
if (c)*c = '\0';
fdef = ED_FindField(progfuncs, COM_TrimString(c2));
if (c)*c = '.';
if (!fdef)
return "(Bad string)";
val = (eval_t *) (((char *)PROG_TO_EDICT(progfuncs, val->_int)->fields) + fdef->ofs*4);
type = fdef->type;
}
if (assignment)
{
assignment++;
switch (type&~DEF_SAVEGLOBAL)
{
case ev_string:
*(string_t *)val = PR_StringToProgs(progfuncs, ED_NewString (progfuncs, assignment, 0));
break;
case ev_float:
*(float *)val = (float)atof (assignment);
break;
case ev_integer:
*(int *)val = atoi (assignment);
break;
/* case ev_vector:
strcpy (string, assignment);
v = string;
w = string;
for (i=0 ; i<3 ; i++)
{
while (*v && *v != ' ')
v++;
*v = 0;
((float *)d)[i] = (float)atof (w);
w = v = v+1;
}
break;
*/
case ev_entity:
*(int *)val = EDICT_TO_PROG(progfuncs, EDICT_NUM(progfuncs, atoi (assignment)));
break;
case ev_field:
fdef = ED_FindField (progfuncs, assignment);
if (!fdef)
{
snprintf(buf, sizeof(buf), "Can't find field %s\n", assignment);
return buf;
}
*(int *)val = G_INT(fdef->ofs);
break;
case ev_function:
{
dfunction_t *func;
int i;
int progsnum = -1;
char *s = assignment;
if (s[0] && s[1] == ':')
{
progsnum = atoi(s);
s+=2;
}
else if (s[0] && s[1] && s[2] == ':')
{
progsnum = atoi(s);
s+=3;
}
func = ED_FindFunction (progfuncs, s, &i, progsnum);
if (!func)
{
assignment[-1] = '=';
snprintf(buf, sizeof(buf), "Can't find function %s\n", s);
return buf;
}
*(func_t *)val = (func - pr_progstate[i].functions) | (i<<24);
}
break;
default:
break;
}
assignment[-1] = '=';
}
strcpy(buf, PR_ValueString(progfuncs, type, val));
return buf;
}
int debugstatement;
//int EditorHighlightLine(window_t *wnd, int line);
void SetExecutionToLine(progfuncs_t *progfuncs, int linenum)
{
int pn = pr_typecurrent;
int snum;
dfunction_t *f = pr_xfunction;
switch(current_progstate->intsize)
{
case 16:
for (snum = f->first_statement; pr_progstate[pn].linenums[snum] < linenum; snum++)
{
if (pr_statements16[snum].op == OP_DONE)
return;
}
break;
case 24:
case 32:
for (snum = f->first_statement; pr_progstate[pn].linenums[snum] < linenum; snum++)
{
if (pr_statements32[snum].op == OP_DONE)
return;
}
break;
default:
Sys_Error("Bad intsize");
snum = 0;
}
debugstatement = snum;
// EditorHighlightLine(editwnd, pr_progstate[pn].linenums[snum]);
}
//0 clear. 1 set, 2 toggle, 3 check
int PR_ToggleBreakpoint(progfuncs_t *progfuncs, char *filename, int linenum, int flag) //write alternate route to work by function name.
{
int ret=0;
unsigned int fl;
unsigned int i;
int pn = pr_typecurrent;
dfunction_t *f;
int op;
for (pn = 0; (unsigned)pn < maxprogs; pn++)
{
if (!pr_progstate || !pr_progstate[pn].progs)
continue;
if (linenum) //linenum is set means to set the breakpoint on a file and line
{
if (!pr_progstate[pn].linenums)
continue;
for (f = pr_progstate[pn].functions, fl = 0; fl < pr_progstate[pn].progs->numfunctions; f++, fl++)
{
if (!stricmp(f->s_file+progfuncs->stringtable, filename))
{
for (i = f->first_statement; ; i++)
{
if (pr_progstate[pn].linenums[i] >= linenum)
{
fl = pr_progstate[pn].linenums[i];
for (; ; i++)
{
if ((unsigned int)pr_progstate[pn].linenums[i] > fl)
break;
switch(pr_progstate[pn].intsize)
{
case 16:
op = ((dstatement16_t*)pr_progstate[pn].statements + i)->op;
break;
case 24:
case 32:
op = ((dstatement32_t*)pr_progstate[pn].statements + i)->op;
break;
default:
Sys_Error("Bad intsize");
op = 0;
}
switch (flag)
{
default:
if (op & 0x8000)
{
op &= ~0x8000;
ret = false;
flag = 0;
}
else
{
op |= 0x8000;
ret = true;
flag = 1;
}
break;
case 0:
op &= ~0x8000;
ret = false;
break;
case 1:
op |= 0x8000;
ret = true;
break;
case 3:
if (op & 0x8000)
return true;
}
switch(pr_progstate[pn].intsize)
{
case 16:
((dstatement16_t*)pr_progstate[pn].statements + i)->op = op;
break;
case 24:
case 32:
((dstatement32_t*)pr_progstate[pn].statements + i)->op = op;
break;
default:
Sys_Error("Bad intsize");
op = 0;
}
}
goto cont;
}
}
}
}
}
else //set the breakpoint on the first statement of the function specified.
{
for (f = pr_progstate[pn].functions, fl = 0; fl < pr_progstate[pn].progs->numfunctions; f++, fl++)
{
if (!strcmp(f->s_name+progfuncs->stringtable, filename))
{
i = f->first_statement;
switch(pr_progstate[pn].intsize)
{
case 16:
op = ((dstatement16_t*)pr_progstate[pn].statements + i)->op;
break;
case 24:
case 32:
op = ((dstatement32_t*)pr_progstate[pn].statements + i)->op;
break;
default:
Sys_Error("Bad intsize");
}
switch (flag)
{
default:
if (op & 0x8000)
{
op &= ~0x8000;
ret = false;
flag = 0;
}
else
{
op |= 0x8000;
ret = true;
flag = 1;
}
break;
case 0:
op &= ~0x8000;
ret = false;
break;
case 1:
op |= 0x8000;
ret = true;
break;
case 3:
if (op & 0x8000)
return true;
}
switch(pr_progstate[pn].intsize)
{
case 16:
((dstatement16_t*)pr_progstate[pn].statements + i)->op = op;
break;
case 24:
case 32:
((dstatement32_t*)pr_progstate[pn].statements + i)->op = op;
break;
default:
Sys_Error("Bad intsize");
}
break;
}
}
}
cont:
continue;
}
return ret;
}
int ShowStep(progfuncs_t *progfuncs, int statement)
{
// return statement;
// texture realcursortex;
static int lastline = 0;
static char *lastfile = 0;
int pn = pr_typecurrent;
int i;
dfunction_t *f = pr_xfunction;
if (f && pr_progstate[pn].linenums && externs->useeditor)
{
if (lastline == pr_progstate[pn].linenums[statement] && lastfile == f->s_file+progfuncs->stringtable)
return statement; //no info/same line as last time
lastline = pr_progstate[pn].linenums[statement];
lastfile = f->s_file+progfuncs->stringtable;
lastline = externs->useeditor(progfuncs, lastfile, lastline, 0, NULL);
if (pr_progstate[pn].linenums[statement] != lastline)
{
for (i = f->first_statement; ; i++)
{
if (lastline == pr_progstate[pn].linenums[i])
{
return i;
}
else if (lastline <= pr_progstate[pn].linenums[i])
{
return statement;
}
}
}
}
else if (f) //annoying.
{
if (*(f->s_file+progfuncs->stringtable)) //if we can't get the filename, then it was stripped, and debugging it like this is useless
if (externs->useeditor)
externs->useeditor(progfuncs, f->s_file+progfuncs->stringtable, -1, 0, NULL);
return statement;
}
return statement;
}
//DMW: all pointer functions are modified to be absoloute pointers from NULL not sv_edicts
/*
====================
PR_ExecuteProgram
====================
*/
void PR_ExecuteCode (progfuncs_t *progfuncs, int s)
{
eval_t *t, *swtch=NULL;
int swtchtype;
dstatement16_t *st16;
dstatement32_t *st32;
dfunction_t *newf;
int runaway;
int i;
int p;
edictrun_t *ed;
eval_t *ptr;
float *glob;
int fnum = pr_xfunction - pr_functions;
runaway = 100000000;
prinst->continuestatement = -1;
#define PRBOUNDSCHECK
#define RUNAWAYCHECK() \
if (!--runaway) \
{ \
pr_xstatement = st-pr_statements; \
PR_StackTrace(progfuncs); \
printf ("runaway loop error"); \
while(pr_depth > prinst->exitdepth) \
PR_LeaveFunction(progfuncs); \
pr_spushed = 0; \
return; \
}
#define OPA ((eval_t *)&glob[st->a])
#define OPB ((eval_t *)&glob[st->b])
#define OPC ((eval_t *)&glob[st->c])
restart: //jumped to when the progs might have changed.
glob = pr_globals;
switch (current_progstate->intsize)
{
case 16:
#define INTSIZE 16
st16 = &pr_statements16[s];
while (pr_trace)
{
#define DEBUGABLE
#ifdef SEPARATEINCLUDES
#include "execloop16d.h"
#else
#include "execloop.h"
#endif
#undef DEBUGABLE
}
while(1)
{
#include "execloop.h"
}
#undef INTSIZE
Sys_Error("PR_ExecuteProgram - should be unreachable");
break;
case 24:
case 32:
#define INTSIZE 32
st32 = &pr_statements32[s];
while (pr_trace)
{
#define DEBUGABLE
#ifdef SEPARATEINCLUDES
#include "execloop32d.h"
#else
#include "execloop.h"
#endif
#undef DEBUGABLE
}
while(1)
{
#ifdef SEPARATEINCLUDES
#include "execloop32.h"
#else
#include "execloop.h"
#endif
}
#undef INTSIZE
Sys_Error("PR_ExecuteProgram - should be unreachable");
break;
default:
Sys_Error("PR_ExecuteProgram - bad intsize");
}
}
void PR_ExecuteProgram (progfuncs_t *progfuncs, func_t fnum)
{
dfunction_t *f;
int i;
unsigned int initial_progs;
int oldexitdepth;
int s;
int tempdepth;
unsigned int newprogs = (fnum & 0xff000000)>>24;
initial_progs = pr_typecurrent;
if (newprogs != initial_progs)
{
if (newprogs >= maxprogs || !&pr_progstate[newprogs].globals) //can happen with hexen2...
{
printf("PR_ExecuteProgram: tried branching into invalid progs\n");
return;
}
PR_MoveParms(progfuncs, newprogs, pr_typecurrent);
PR_SwitchProgs(progfuncs, newprogs);
}
if (!(fnum & ~0xff000000) || (signed)(fnum & ~0xff000000) >= pr_progs->numfunctions)
{
// if (pr_global_struct->self)
// ED_Print (PROG_TO_EDICT(pr_global_struct->self));
printf("PR_ExecuteProgram: NULL function from exe\n");
// Host_Error ("PR_ExecuteProgram: NULL function from exe");
// PR_MoveParms(0, pr_typecurrent);
PR_SwitchProgs(progfuncs, initial_progs);
return;
}
oldexitdepth = prinst->exitdepth;
f = &pr_functions[fnum & ~0xff000000];
if (f->first_statement < 0)
{ // negative statements are built in functions
i = -f->first_statement;
if (i < externs->numglobalbuiltins)
(*externs->globalbuiltins[i]) (progfuncs, (struct globalvars_s *)current_progstate->globals);
else
{
i -= externs->numglobalbuiltins;
if (i > current_progstate->numbuiltins)
{
printf ("Bad builtin call number %i (from exe)\n", -f->first_statement);
// PR_MoveParms(p, pr_typecurrent);
PR_SwitchProgs(progfuncs, initial_progs);
return;
}
current_progstate->builtins [i] (progfuncs, (struct globalvars_s *)current_progstate->globals);
}
PR_MoveParms(progfuncs, initial_progs, pr_typecurrent);
PR_SwitchProgs(progfuncs, initial_progs);
return;
}
if (pr_trace)
pr_trace--;
// make a stack frame
prinst->exitdepth = pr_depth;
s = PR_EnterFunction (progfuncs, f, initial_progs);
tempdepth = prinst->numtempstringsstack;
PR_ExecuteCode(progfuncs, s);
PR_MoveParms(progfuncs, initial_progs, pr_typecurrent);
PR_SwitchProgs(progfuncs, initial_progs);
PR_FreeTemps(progfuncs, tempdepth);
prinst->numtempstringsstack = tempdepth;
prinst->exitdepth = oldexitdepth;
}
typedef struct {
int fnum;
int progsnum;
int statement;
} qcthreadstack_t;
typedef struct qcthread_s {
int fstackdepth;
qcthreadstack_t fstack[MAX_STACK_DEPTH];
int lstackused;
int lstack[LOCALSTACK_SIZE];
int xstatement;
int xfunction;
progsnum_t xprogs;
} qcthread_t;
struct qcthread_s *PR_ForkStack(progfuncs_t *progfuncs)
{ //QC code can call builtins that call qc code.
//to get around the problems of restoring the builtins we simply don't save the thread over the builtin.
int i, l;
int ed = prinst->exitdepth;
int localsoffset, baselocalsoffset;
qcthread_t *thread = memalloc(sizeof(qcthread_t));
dfunction_t *f;
//copy out the functions stack.
for (i = 0,localsoffset=0; i < ed; i++)
{
if (i+1 == pr_depth)
f = pr_xfunction;
else
f = pr_stack[i+1].f;
localsoffset += f->locals; //this is where it crashes
}
baselocalsoffset = localsoffset;
for (i = ed; i < pr_depth; i++)
{
thread->fstack[i-ed].fnum = pr_stack[i].f - pr_progstate[pr_stack[i].progsnum].functions;
thread->fstack[i-ed].progsnum = pr_stack[i].progsnum;
thread->fstack[i-ed].statement = pr_stack[i].s;
if (i+1 == pr_depth)
f = pr_xfunction;
else
f = pr_stack[i+1].f;
localsoffset += f->locals;
}
thread->fstackdepth = pr_depth - ed;
for (i = pr_depth - 1; i >= ed ; i--)
{
if (i+1 == pr_depth)
f = pr_xfunction;
else
f = pr_stack[i+1].f;
localsoffset -= f->locals;
for (l = 0; l < f->locals; l++)
{
thread->lstack[localsoffset-baselocalsoffset + l ] = ((int *)pr_globals)[f->parm_start + l];
((int *)pr_globals)[f->parm_start + l] = localstack[localsoffset+l]; //copy the old value into the globals (so the older functions have the correct locals.
}
}
for (i = ed; i < pr_depth ; i++) //we need to get the locals back to how they were.
{
if (i+1 == pr_depth)
f = pr_xfunction;
else
f = pr_stack[i+1].f;
for (l = 0; l < f->locals; l++)
{
((int *)pr_globals)[f->parm_start + l] = thread->lstack[localsoffset-baselocalsoffset + l];
}
localsoffset += f->locals;
}
thread->lstackused = localsoffset - baselocalsoffset;
thread->xstatement = pr_xstatement;
thread->xfunction = pr_xfunction - pr_progstate[pr_typecurrent].functions;
thread->xprogs = pr_typecurrent;
return thread;
}
void PR_ResumeThread (progfuncs_t *progfuncs, struct qcthread_s *thread)
{
dfunction_t *f, *oldf;
int i,l,ls;
progsnum_t initial_progs;
int oldexitdepth;
int s;
int tempdepth;
progsnum_t prnum = thread->xprogs;
int fnum = thread->xfunction;
if (localstack_used + thread->lstackused > LOCALSTACK_SIZE)
PR_RunError(progfuncs, "Too many locals on resumtion of QC thread\n");
if (pr_depth + thread->fstackdepth > MAX_STACK_DEPTH)
PR_RunError(progfuncs, "Too large stack on resumtion of QC thread\n");
//do progs switching stuff as appropriate. (fteqw only)
initial_progs = pr_typecurrent;
PR_MoveParms(progfuncs, prnum, pr_typecurrent);
PR_SwitchProgs(progfuncs, prnum);
oldexitdepth = prinst->exitdepth;
prinst->exitdepth = pr_depth;
ls = 0;
//add on the callstack.
for (i = 0; i < thread->fstackdepth; i++)
{
if (pr_depth == prinst->exitdepth)
{
pr_stack[pr_depth].f = pr_xfunction;
pr_stack[pr_depth].s = pr_xstatement;
pr_stack[pr_depth].progsnum = initial_progs;
}
else
{
pr_stack[pr_depth].progsnum = thread->fstack[i].progsnum;
pr_stack[pr_depth].f = pr_progstate[thread->fstack[i].progsnum].functions + thread->fstack[i].fnum;
pr_stack[pr_depth].s = thread->fstack[i].statement;
}
if (i+1 == thread->fstackdepth)
f = &pr_functions[fnum];
else
f = pr_progstate[thread->fstack[i+1].progsnum].functions + thread->fstack[i+1].fnum;
for (l = 0; l < f->locals; l++)
{
localstack[localstack_used++] = ((int *)pr_globals)[f->parm_start + l];
((int *)pr_globals)[f->parm_start + l] = thread->lstack[ls++];
}
pr_depth++;
}
if (ls != thread->lstackused)
PR_RunError(progfuncs, "Thread stores incorrect locals count\n");
f = &pr_functions[fnum];
// thread->lstackused -= f->locals; //the current function is the odd one out.
//add on the locals stack
memcpy(localstack+localstack_used, thread->lstack, sizeof(int)*thread->lstackused);
localstack_used += thread->lstackused;
//bung the locals of the current function on the stack.
// for (i=0 ; i < f->locals ; i++)
// ((int *)pr_globals)[f->parm_start + i] = 0xff00ff00;//thread->lstack[thread->lstackused+i];
// PR_EnterFunction (progfuncs, f, initial_progs);
oldf = pr_xfunction;
pr_xfunction = f;
s = thread->xstatement;
tempdepth = prinst->numtempstringsstack;
PR_ExecuteCode(progfuncs, s);
PR_MoveParms(progfuncs, initial_progs, pr_typecurrent);
PR_SwitchProgs(progfuncs, initial_progs);
PR_FreeTemps(progfuncs, tempdepth);
prinst->numtempstringsstack = tempdepth;
prinst->exitdepth = oldexitdepth;
pr_xfunction = oldf;
}
void PR_AbortStack (progfuncs_t *progfuncs)
{
while(pr_depth > prinst->exitdepth+1)
PR_LeaveFunction(progfuncs);
prinst->continuestatement = 0;
}
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