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fteqw/engine/qclib/execloop.h
Spoike 97579ebfbb bugfixes: 
hexen2 players now have colourmaps again. doesn't crash with rgb player colours.
hexen2 colour previews now work (as well as they did in actual hexen2, anyway)
fix possible issue with 'bad type - needs fixing'
color command now longer omits 0 values when displaying.
readded support for all hexen2 palette lookup types.
fixed some hexen2 image positions.
using premultiplied alpha for pics as an easy fix for hexen2's various ugly halos.
the checkerboard texture is back!
fix q1 maps that have more than 32k clipplanes.
new features:
when associated with mdl etc file extensions, now opens up the modelviewer. also potentially changes gamedir (this applies to bsps too).
multiplayer setup menu now supports selecting rgb colours (lower colour remains with the 14 team colours). press shift for the normal/hue colour selection instead. 
attempt to use bgra for texture uploads by default where available. reimplement possible support for 16bit textures.
attempt to implement gamepad support for web port. untested, but should be completeish.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4764 fc73d0e0-1445-4013-8a0c-d673dee63da5
2014-10-11 19:39:45 +00:00

1268 lines
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//qc execution code.
//we have two conditions.
//one allows us to debug and trace through our code, the other doesn't.
//hopefully, the compiler will do a great job at optimising this code for us, where required.
//if it dosn't, then bum.
//the general overhead should be reduced significantly, and I would be supprised if it did run slower.
//run away loops are checked for ONLY on gotos and function calls. This might give a poorer check, but it will run faster overall.
//Appears to work fine.
#if INTSIZE == 16
#define cont cont16
#define reeval reeval16
#define pr_statements pr_statements16
#define fakeop fakeop16
#define dstatement_t dstatement16_t
#define sofs signed short
#elif INTSIZE == 32
#define cont cont32
#define reeval reeval32
#define pr_statements pr_statements32
#define fakeop fakeop32
#define dstatement_t dstatement32_t
#define sofs signed int
#elif INTSIZE == 24
#error INTSIZE should be set to 32.
#else
#error Bad cont size
#endif
#ifdef DEBUGABLE
#define OPCODE (progfuncs->funcs.pr_trace?(st->op & ~0x8000):st->op)
#else
#define OPCODE (st->op)
#endif
#define ENGINEPOINTER(p) ((char*)(p) - progfuncs->funcs.stringtable)
#define QCPOINTER(p) (eval_t *)(p->_int+progfuncs->funcs.stringtable)
#define QCPOINTERM(p) (eval_t *)((p)+progfuncs->funcs.stringtable)
#define QCPOINTERWRITEFAIL(p,sz) ((unsigned int)p->_int-1 >= prinst.addressableused-1-sz) //disallows null writes
#define QCPOINTERREADFAIL(p,sz) ((unsigned int)p->_int >= prinst.addressableused-sz) //permits null reads
//rely upon just st
{
#ifdef DEBUGABLE
cont: //last statement may have been a breakpoint
s = st-pr_statements;
s+=1;
if (prinst.watch_ptr && prinst.watch_ptr->_int != prinst.watch_old._int)
{
//this will fire on the next instruction after the variable got changed.
pr_xstatement = s;
switch(prinst.watch_type)
{
case ev_float:
printf("Watch point hit in %s, \"%s\" changed from %g to %g.\n", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), prinst.watch_name, prinst.watch_old._float, prinst.watch_ptr->_float);
break;
default:
printf("Watch point hit in %s, \"%s\" changed from %i to %i.\n", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), prinst.watch_name, prinst.watch_old._int, prinst.watch_ptr->_int);
break;
case ev_function:
case ev_string:
printf("Watch point hit in %s, \"%s\" now set to %s.\n", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), prinst.watch_name, PR_ValueString(progfuncs, prinst.watch_type, prinst.watch_ptr, false));
break;
}
prinst.watch_old = *prinst.watch_ptr;
// prinst.watch_ptr = NULL;
if (progfuncs->funcs.pr_trace<1)
progfuncs->funcs.pr_trace=1; //this is what it's for
}
if (progfuncs->funcs.pr_trace)
s=ShowStep(progfuncs, s);
st = pr_statements + s;
pr_xfunction->profile+=1;
reeval:
#else
st++;
#endif
switch (OPCODE)
{
case OP_ADD_F:
OPC->_float = OPA->_float + OPB->_float;
break;
case OP_ADD_V:
OPC->_vector[0] = OPA->_vector[0] + OPB->_vector[0];
OPC->_vector[1] = OPA->_vector[1] + OPB->_vector[1];
OPC->_vector[2] = OPA->_vector[2] + OPB->_vector[2];
break;
case OP_SUB_F:
OPC->_float = OPA->_float - OPB->_float;
break;
case OP_SUB_V:
OPC->_vector[0] = OPA->_vector[0] - OPB->_vector[0];
OPC->_vector[1] = OPA->_vector[1] - OPB->_vector[1];
OPC->_vector[2] = OPA->_vector[2] - OPB->_vector[2];
break;
case OP_MUL_F:
OPC->_float = OPA->_float * OPB->_float;
break;
case OP_MUL_V:
OPC->_float = OPA->_vector[0]*OPB->_vector[0]
+ OPA->_vector[1]*OPB->_vector[1]
+ OPA->_vector[2]*OPB->_vector[2];
break;
case OP_MUL_FV:
tmpf = OPA->_float;
OPC->_vector[0] = tmpf * OPB->_vector[0];
OPC->_vector[1] = tmpf * OPB->_vector[1];
OPC->_vector[2] = tmpf * OPB->_vector[2];
break;
case OP_MUL_VF:
tmpf = OPB->_float;
OPC->_vector[0] = tmpf * OPA->_vector[0];
OPC->_vector[1] = tmpf * OPA->_vector[1];
OPC->_vector[2] = tmpf * OPA->_vector[2];
break;
case OP_DIV_F:
/* if (!OPB->_float)
{
pr_xstatement = st-pr_statements;
printf ("Division by 0 in %s\n", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name));
PR_StackTrace (&progfuncs->funcs);
}
*/ OPC->_float = OPA->_float / OPB->_float;
break;
case OP_DIV_VF:
tmpf = OPB->_float;
/* if (!tmpf)
{
pr_xstatement = st-pr_statements;
printf ("Division by 0 in %s\n", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name));
PR_StackTrace (&progfuncs->funcs);
}
*/
OPC->_vector[0] = OPA->_vector[0] / tmpf;
OPC->_vector[1] = OPA->_vector[1] / tmpf;
OPC->_vector[2] = OPA->_vector[2] / tmpf;
break;
case OP_BITAND_F:
OPC->_float = (float)((int)OPA->_float & (int)OPB->_float);
break;
case OP_BITOR_F:
OPC->_float = (float)((int)OPA->_float | (int)OPB->_float);
break;
case OP_GE_F:
OPC->_float = (float)(OPA->_float >= OPB->_float);
break;
case OP_GE_I:
OPC->_int = (int)(OPA->_int >= OPB->_int);
break;
case OP_GE_IF:
OPC->_float = (float)(OPA->_int >= OPB->_float);
break;
case OP_GE_FI:
OPC->_float = (float)(OPA->_float >= OPB->_int);
break;
case OP_LE_F:
OPC->_float = (float)(OPA->_float <= OPB->_float);
break;
case OP_LE_I:
OPC->_int = (int)(OPA->_int <= OPB->_int);
break;
case OP_LE_IF:
OPC->_float = (float)(OPA->_int <= OPB->_float);
break;
case OP_LE_FI:
OPC->_float = (float)(OPA->_float <= OPB->_int);
break;
case OP_GT_F:
OPC->_float = (float)(OPA->_float > OPB->_float);
break;
case OP_GT_I:
OPC->_int = (int)(OPA->_int > OPB->_int);
break;
case OP_GT_IF:
OPC->_float = (float)(OPA->_int > OPB->_float);
break;
case OP_GT_FI:
OPC->_float = (float)(OPA->_float > OPB->_int);
break;
case OP_LT_F:
OPC->_float = (float)(OPA->_float < OPB->_float);
break;
case OP_LT_I:
OPC->_int = (int)(OPA->_int < OPB->_int);
break;
case OP_LT_IF:
OPC->_float = (float)(OPA->_int < OPB->_float);
break;
case OP_LT_FI:
OPC->_float = (float)(OPA->_float < OPB->_int);
break;
case OP_AND_F:
OPC->_float = (float)(OPA->_float && OPB->_float);
break;
case OP_OR_F:
OPC->_float = (float)(OPA->_float || OPB->_float);
break;
case OP_NOT_F:
OPC->_float = (float)(!OPA->_float);
break;
case OP_NOT_V:
OPC->_float = (float)(!OPA->_vector[0] && !OPA->_vector[1] && !OPA->_vector[2]);
break;
case OP_NOT_S:
OPC->_float = (float)(!(OPA->string) || !*PR_StringToNative(&progfuncs->funcs, OPA->string));
break;
case OP_NOT_FNC:
OPC->_float = (float)(!(OPA->function & ~0xff000000));
break;
case OP_NOT_ENT:
OPC->_float = (float)(PROG_TO_EDICT(progfuncs, OPA->edict) == (edictrun_t *)sv_edicts);
break;
case OP_EQ_F:
OPC->_float = (float)(OPA->_float == OPB->_float);
break;
case OP_EQ_IF:
OPC->_float = (float)(OPA->_int == OPB->_float);
break;
case OP_EQ_FI:
OPC->_float = (float)(OPA->_float == OPB->_int);
break;
case OP_EQ_V:
OPC->_float = (float)((OPA->_vector[0] == OPB->_vector[0]) &&
(OPA->_vector[1] == OPB->_vector[1]) &&
(OPA->_vector[2] == OPB->_vector[2]));
break;
case OP_EQ_S:
if (OPA->string==OPB->string)
OPC->_float = true;
else if (!OPA->string)
{
if (!OPB->string || !*PR_StringToNative(&progfuncs->funcs, OPB->string))
OPC->_float = true;
else
OPC->_float = false;
}
else if (!OPB->string)
{
if (!OPA->string || !*PR_StringToNative(&progfuncs->funcs, OPA->string))
OPC->_float = true;
else
OPC->_float = false;
}
else
OPC->_float = (float)(!strcmp(PR_StringToNative(&progfuncs->funcs, OPA->string),PR_StringToNative(&progfuncs->funcs, OPB->string)));
break;
case OP_EQ_E:
OPC->_float = (float)(OPA->_int == OPB->_int);
break;
case OP_EQ_FNC:
OPC->_float = (float)(OPA->function == OPB->function);
break;
case OP_NE_F:
OPC->_float = (float)(OPA->_float != OPB->_float);
break;
case OP_NE_V:
OPC->_float = (float)((OPA->_vector[0] != OPB->_vector[0]) ||
(OPA->_vector[1] != OPB->_vector[1]) ||
(OPA->_vector[2] != OPB->_vector[2]));
break;
case OP_NE_S:
if (OPA->string==OPB->string)
OPC->_float = false;
else if (!OPA->string)
{
if (!OPB->string || !*(PR_StringToNative(&progfuncs->funcs, OPB->string)))
OPC->_float = false;
else
OPC->_float = true;
}
else if (!OPB->string)
{
if (!OPA->string || !*PR_StringToNative(&progfuncs->funcs, OPA->string))
OPC->_float = false;
else
OPC->_float = true;
}
else
OPC->_float = (float)(strcmp(PR_StringToNative(&progfuncs->funcs, OPA->string),PR_StringToNative(&progfuncs->funcs, OPB->string)));
break;
case OP_NE_E:
OPC->_float = (float)(OPA->_int != OPB->_int);
break;
case OP_NE_FNC:
OPC->_float = (float)(OPA->function != OPB->function);
break;
//==================
case OP_STORE_IF:
OPB->_float = (float)OPA->_int;
break;
case OP_STORE_FI:
OPB->_int = (int)OPA->_float;
break;
case OP_STORE_F:
case OP_STORE_ENT:
case OP_STORE_FLD: // integers
case OP_STORE_S:
case OP_STORE_I:
case OP_STORE_FNC: // pointers
case OP_STORE_P:
OPB->_int = OPA->_int;
break;
case OP_STORE_V:
OPB->_vector[0] = OPA->_vector[0];
OPB->_vector[1] = OPA->_vector[1];
OPB->_vector[2] = OPA->_vector[2];
break;
//store a value to a pointer
case OP_STOREP_IF:
if (QCPOINTERWRITEFAIL(OPB, sizeof(float)))
{
if (OPB->_int == -1)
break;
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer write in %s", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name));
}
ptr = QCPOINTER(OPB);
ptr->_float = (float)OPA->_int;
break;
case OP_STOREP_FI:
if (QCPOINTERWRITEFAIL(OPB, sizeof(int)))
{
if (OPB->_int == -1)
break;
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer write in %s", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name));
}
ptr = QCPOINTER(OPB);
ptr->_int = (int)OPA->_float;
break;
case OP_STOREP_I:
case OP_STOREP_F:
case OP_STOREP_ENT:
case OP_STOREP_FLD: // integers
case OP_STOREP_S:
case OP_STOREP_FNC: // pointers
if (QCPOINTERWRITEFAIL(OPB, sizeof(int)))
{
if (OPB->_int == -1)
break;
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer write in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPB->_int, prinst.addressableused);
}
ptr = QCPOINTER(OPB);
ptr->_int = OPA->_int;
break;
case OP_STOREP_V:
if (QCPOINTERWRITEFAIL(OPB, sizeof(vec3_t)))
{
if (OPB->_int == -1)
break;
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer write in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPB->_int, prinst.addressableused);
}
ptr = QCPOINTER(OPB);
ptr->_vector[0] = OPA->_vector[0];
ptr->_vector[1] = OPA->_vector[1];
ptr->_vector[2] = OPA->_vector[2];
break;
case OP_STOREP_C: //store character in a string
if (QCPOINTERWRITEFAIL(OPB, sizeof(char)))
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer write in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPB->_int, prinst.addressableused);
}
ptr = QCPOINTER(OPB);
*(unsigned char *)ptr = (char)OPA->_float;
break;
//get a pointer to a field var
case OP_ADDRESS:
if ((unsigned)OPA->edict >= (unsigned)sv_num_edicts)
{
pr_xstatement = st-pr_statements;
if (PR_RunWarning (&progfuncs->funcs, "OP_ADDRESS references invalid entity in %s", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name)))
{
st--;
goto cont;
}
break;
}
ed = PROG_TO_EDICT(progfuncs, OPA->edict);
#ifdef PARANOID
NUM_FOR_EDICT(ed); // make sure it's in range
#endif
if (!ed || ed->readonly)
{
//boot it over to the debugger
{
ddef16_t *d16;
fdef_t *f;
d16 = ED_GlobalAtOfs16(progfuncs, st->a);
f = ED_FieldAtOfs(progfuncs, OPB->_int + progfuncs->funcs.fieldadjust);
pr_xstatement = st-pr_statements;
if (PR_RunWarning(&progfuncs->funcs, "assignment to read-only entity %i in %s (%s.%s)", OPA->edict, PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), d16?PR_StringToNative(&progfuncs->funcs, d16->s_name):NULL, f?f->name:NULL))
{
st--;
goto cont;
}
OPC->_int = ~0;
break;
}
}
//Whilst the next block would technically be correct, we don't use it as it breaks too many quake mods.
// if (ed->isfree)
// {
// pr_xstatement = st-pr_statements;
// PR_RunError (progfuncs, "assignment to free entitiy in %s", PR_StringToNative(progfuncs, pr_xfunction->s_name));
// }
OPC->_int = ENGINEPOINTER((((int *)edvars(ed)) + OPB->_int + progfuncs->funcs.fieldadjust));
break;
//load a field to a value
case OP_LOAD_P:
case OP_LOAD_I:
case OP_LOAD_F:
case OP_LOAD_FLD:
case OP_LOAD_ENT:
case OP_LOAD_S:
case OP_LOAD_FNC:
if ((unsigned)OPA->edict >= (unsigned)sv_num_edicts)
{
pr_xstatement = st-pr_statements;
if (PR_RunWarning (&progfuncs->funcs, "OP_LOAD references invalid entity %i in %s", OPA->edict, PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name)))
{
st--;
goto cont;
}
OPC->_int = 0;
break;
}
ed = PROG_TO_EDICT(progfuncs, OPA->edict);
#ifdef PARANOID
NUM_FOR_EDICT(ed); // make sure it's in range
#endif
ptr = (eval_t *)(((int *)edvars(ed)) + OPB->_int + progfuncs->funcs.fieldadjust);
OPC->_int = ptr->_int;
break;
case OP_LOAD_V:
if ((unsigned)OPA->edict >= (unsigned)sv_num_edicts)
{
pr_xstatement = st-pr_statements;
if (PR_RunWarning (&progfuncs->funcs, "OP_LOAD_V references invalid entity %i in %s", OPA->edict, PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name)))
{
st--;
goto cont;
}
OPC->_vector[0] = 0;
OPC->_vector[1] = 0;
OPC->_vector[2] = 0;
break;
}
ed = PROG_TO_EDICT(progfuncs, OPA->edict);
#ifdef PARANOID
NUM_FOR_EDICT(ed); // make sure it's in range
#endif
ptr = (eval_t *)(((int *)edvars(ed)) + OPB->_int + progfuncs->funcs.fieldadjust);
OPC->_vector[0] = ptr->_vector[0];
OPC->_vector[1] = ptr->_vector[1];
OPC->_vector[2] = ptr->_vector[2];
break;
//==================
case OP_IFNOT_S:
RUNAWAYCHECK();
if (!OPA->string || !PR_StringToNative(&progfuncs->funcs, OPA->string))
st += (sofs)st->b - 1; // offset the s++
break;
case OP_IFNOT_F:
RUNAWAYCHECK();
if (!OPA->_float)
st += (sofs)st->b - 1; // offset the s++
break;
case OP_IFNOT_I:
RUNAWAYCHECK();
if (!OPA->_int)
st += (sofs)st->b - 1; // offset the s++
break;
case OP_IF_S:
RUNAWAYCHECK();
if (OPA->string && PR_StringToNative(&progfuncs->funcs, OPA->string))
st += (sofs)st->b - 1; // offset the s++
break;
case OP_IF_F:
RUNAWAYCHECK();
if (OPA->_float)
st += (sofs)st->b - 1; // offset the s++
break;
case OP_IF_I:
RUNAWAYCHECK();
if (OPA->_int)
st += (sofs)st->b - 1; // offset the s++
break;
case OP_GOTO:
RUNAWAYCHECK();
st += (sofs)st->a - 1; // offset the s++
break;
case OP_CALL8H:
case OP_CALL7H:
case OP_CALL6H:
case OP_CALL5H:
case OP_CALL4H:
case OP_CALL3H:
case OP_CALL2H:
G_VECTOR(OFS_PARM1)[0] = OPC->_vector[0];
G_VECTOR(OFS_PARM1)[1] = OPC->_vector[1];
G_VECTOR(OFS_PARM1)[2] = OPC->_vector[2];
case OP_CALL1H:
G_VECTOR(OFS_PARM0)[0] = OPB->_vector[0];
G_VECTOR(OFS_PARM0)[1] = OPB->_vector[1];
G_VECTOR(OFS_PARM0)[2] = OPB->_vector[2];
case OP_CALL8:
case OP_CALL7:
case OP_CALL6:
case OP_CALL5:
case OP_CALL4:
case OP_CALL3:
case OP_CALL2:
case OP_CALL1:
case OP_CALL0:
{
int callerprogs;
int newpr;
unsigned int fnum;
RUNAWAYCHECK();
pr_xstatement = st-pr_statements;
if (OPCODE > OP_CALL8)
progfuncs->funcs.callargc = OPCODE - (OP_CALL1H-1);
else
progfuncs->funcs.callargc = OPCODE - OP_CALL0;
fnum = OPA->function;
glob = NULL; //try to derestrict it.
callerprogs=pr_typecurrent; //so we can revert to the right caller.
newpr = (fnum & 0xff000000)>>24; //this is the progs index of the callee
fnum &= ~0xff000000; //the callee's function index.
//if it's an external call, switch now (before any function pointers are used)
if (!PR_SwitchProgsParms(progfuncs, newpr) || !fnum || fnum > pr_progs->numfunctions)
{
char *msg = fnum?"OP_CALL references invalid function in %s\n":"NULL function from qc (inside %s).\n";
PR_SwitchProgsParms(progfuncs, callerprogs);
//break/skip the instruction.
PR_StackTrace(&progfuncs->funcs, 0);
printf(msg, PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name));
glob = pr_globals;
#ifndef DEBUGABLE
progfuncs->funcs.pr_trace++;
st--;
goto cont;
#else
pr_globals[OFS_RETURN] = 0;
pr_globals[OFS_RETURN+1] = 0;
pr_globals[OFS_RETURN+2] = 0;
break;
#endif
}
newf = &pr_cp_functions[fnum & ~0xff000000];
if (newf->first_statement < 0)
{ // negative statements are built in functions
/*calling a builtin in another progs may affect that other progs' globals instead, is the theory anyway, so args and stuff need to move over*/
if (pr_typecurrent != 0)
{
//builtins quite hackily refer to only a single global.
//for builtins to affect the globals of other progs, we need to first switch to the progs that it will affect, so they'll be correct when we switch back
PR_SwitchProgsParms(progfuncs, 0);
}
i = -newf->first_statement;
// p = pr_typecurrent;
progfuncs->funcs.lastcalledbuiltinnumber = i;
if (i < externs->numglobalbuiltins)
{
prinst.numtempstringsstack = prinst.numtempstrings;
(*externs->globalbuiltins[i]) (&progfuncs->funcs, (struct globalvars_s *)current_progstate->globals);
if (prinst.continuestatement!=-1)
{
st=&pr_statements[prinst.continuestatement];
prinst.continuestatement=-1;
glob = pr_globals;
break;
}
}
else
{
i -= externs->numglobalbuiltins;
if (i >= current_progstate->numbuiltins)
{
// if (newf->first_statement == -0x7fffffff)
// ((builtin_t)newf->profile) (progfuncs, (struct globalvars_s *)current_progstate->globals);
// else
PR_RunError (&progfuncs->funcs, "Bad builtin call number - %i", -newf->first_statement);
}
else
current_progstate->builtins [i] (&progfuncs->funcs, (struct globalvars_s *)current_progstate->globals);
}
// memcpy(&pr_progstate[p].globals[OFS_RETURN], &current_progstate->globals[OFS_RETURN], sizeof(vec3_t));
PR_SwitchProgsParms(progfuncs, (progsnum_t)callerprogs);
//decide weather non debugger wants to start debugging.
s = st-pr_statements;
return s;
}
// PR_SwitchProgsParms((OPA->function & 0xff000000)>>24);
s = PR_EnterFunction (progfuncs, newf, callerprogs);
st = &pr_statements[s];
}
//resume at the new statement, which might be in a different progs
return s;
// break;
case OP_DONE:
case OP_RETURN:
RUNAWAYCHECK();
glob[OFS_RETURN] = glob[st->a];
glob[OFS_RETURN+1] = glob[st->a+1];
glob[OFS_RETURN+2] = glob[st->a+2];
/*
{
static char buffer[1024*1024*8];
int size = sizeof buffer;
progfuncs->save_ents(progfuncs, buffer, &size, 0);
}
*/
s = PR_LeaveFunction (progfuncs);
st = &pr_statements[s];
if (pr_depth == prinst.exitdepth)
{
return -1; // all done
}
return s;
// break;
case OP_STATE:
externs->stateop(&progfuncs->funcs, OPA->_float, OPB->function);
break;
case OP_ADD_I:
OPC->_int = OPA->_int + OPB->_int;
break;
case OP_ADD_FI:
OPC->_float = OPA->_float + (float)OPB->_int;
break;
case OP_ADD_IF:
OPC->_float = (float)OPA->_int + OPB->_float;
break;
case OP_SUB_I:
OPC->_int = OPA->_int - OPB->_int;
break;
case OP_SUB_FI:
OPC->_float = OPA->_float - (float)OPB->_int;
break;
case OP_SUB_IF:
OPC->_float = (float)OPA->_int - OPB->_float;
break;
case OP_CONV_ITOF:
OPC->_float = (float)OPA->_int;
break;
case OP_CONV_FTOI:
OPC->_int = (int)OPA->_float;
break;
case OP_CP_ITOF:
ptr = (eval_t *)(((qbyte *)sv_edicts) + OPA->_int);
OPC->_float = (float)ptr->_int;
break;
case OP_CP_FTOI:
ptr = (eval_t *)(((qbyte *)sv_edicts) + OPA->_int);
OPC->_int = (int)ptr->_float;
break;
case OP_BITAND_I:
OPC->_int = (OPA->_int & OPB->_int);
break;
case OP_BITOR_I:
OPC->_int = (OPA->_int | OPB->_int);
break;
case OP_MUL_I:
OPC->_int = OPA->_int * OPB->_int;
break;
case OP_DIV_I:
if (OPB->_int == 0) //no division by zero allowed...
OPC->_int = 0;
else
OPC->_int = OPA->_int / OPB->_int;
break;
case OP_EQ_I:
OPC->_int = (OPA->_int == OPB->_int);
break;
case OP_NE_I:
OPC->_int = (OPA->_int != OPB->_int);
break;
//array/structure reading/writing.
case OP_GLOBALADDRESS:
OPC->_int = ENGINEPOINTER(&OPA->_int + OPB->_int); /*pointer arithmatic*/
break;
case OP_ADD_PIW: //pointer to 32 bit (remember to *3 for vectors)
OPC->_int = OPA->_int + OPB->_int*sizeof(float);
break;
case OP_LOADA_I:
case OP_LOADA_F:
case OP_LOADA_FLD:
case OP_LOADA_ENT:
case OP_LOADA_S:
case OP_LOADA_FNC:
ptr = (eval_t *)(&OPA->_int + OPB->_int); /*pointer arithmatic*/
OPC->_int = ptr->_int;
break;
case OP_LOADA_V:
ptr = (eval_t *)(&OPA->_int + OPB->_int);
OPC->_vector[0] = ptr->_vector[0];
OPC->_vector[1] = ptr->_vector[1];
OPC->_vector[2] = ptr->_vector[2];
break;
case OP_ADD_SF: //(char*)c = (char*)a + (float)b
OPC->_int = OPA->_int + (int)OPB->_float;
break;
case OP_SUB_S: //(float)c = (char*)a - (char*)b
OPC->_int = OPA->_int - OPB->_int;
break;
case OP_LOADP_C: //load character from a string/pointer
i = (unsigned int)OPA->_int + (unsigned int)OPB->_float;
if ((unsigned int)i > prinst.addressableused-sizeof(char))
{
i = (unsigned int)OPB->_float;
ptr = (eval_t*)PR_StringToNative(&progfuncs->funcs, OPA->_int);
if ((size_t)i > strlen((char*)ptr))
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer read in %s (%i bytes into %s)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), i, ptr);
}
ptr = (eval_t*)((char*)ptr + i);
}
else
ptr = QCPOINTERM(i);
OPC->_float = *(unsigned char *)ptr;
break;
case OP_LOADP_I:
case OP_LOADP_F:
case OP_LOADP_FLD:
case OP_LOADP_ENT:
case OP_LOADP_S:
case OP_LOADP_FNC:
i = OPA->_int + OPB->_int*4;
if ((unsigned int)i > prinst.addressableused-sizeof(int))
{
if (i == -1)
{
OPC->_int = 0;
break;
}
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer read in %s", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name));
}
ptr = QCPOINTERM(i);
OPC->_int = ptr->_int;
break;
case OP_LOADP_V:
i = OPA->_int + OPB->_int*4; //NOTE: inconsistant!
if ((unsigned int)i > prinst.addressableused-sizeof(vec3_t))
{
if (i == -1)
{
OPC->_int = 0;
break;
}
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer read in %s", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name));
}
ptr = QCPOINTERM(i);
OPC->_vector[0] = ptr->_vector[0];
OPC->_vector[1] = ptr->_vector[1];
OPC->_vector[2] = ptr->_vector[2];
break;
case OP_XOR_I:
OPC->_int = OPA->_int ^ OPB->_int;
break;
case OP_RSHIFT_I:
OPC->_int = OPA->_int >> OPB->_int;
break;
case OP_LSHIFT_I:
OPC->_int = OPA->_int << OPB->_int;
break;
//hexen2 arrays contain a prefix global set to (arraysize-1) inserted before the actual array data
//for vectors, this prefix is the number of vectors rather than the number of globals. this can cause issues with using OP_FETCH_GBL_V within structs.
case OP_FETCH_GBL_F:
case OP_FETCH_GBL_S:
case OP_FETCH_GBL_E:
case OP_FETCH_GBL_FNC:
i = OPB->_float;
if((unsigned)i > (unsigned)((eval_t *)&glob[st->a-1])->_int)
{
pr_xstatement = st-pr_statements;
PR_RunError(&progfuncs->funcs, "array index out of bounds: %s[%d] (max %d)", PR_GlobalStringNoContents(progfuncs, st->a), i, ((eval_t *)&glob[st->a-1])->_int);
}
OPC->_int = ((eval_t *)&glob[st->a + i])->_int;
break;
case OP_FETCH_GBL_V:
i = OPB->_float;
if((unsigned)i > (unsigned)((eval_t *)&glob[st->a-1])->_int)
{
pr_xstatement = st-pr_statements;
PR_RunError(&progfuncs->funcs, "array index out of bounds: %s[%d]", PR_GlobalStringNoContents(progfuncs, st->a), i);
}
ptr = (eval_t *)&glob[st->a + i*3];
OPC->_vector[0] = ptr->_vector[0];
OPC->_vector[1] = ptr->_vector[1];
OPC->_vector[2] = ptr->_vector[2];
break;
case OP_CSTATE:
externs->cstateop(&progfuncs->funcs, OPA->_float, OPB->_float, pr_xfunction - pr_cp_functions);
break;
case OP_CWSTATE:
externs->cwstateop(&progfuncs->funcs, OPA->_float, OPB->_float, pr_xfunction - pr_cp_functions);
break;
case OP_THINKTIME:
externs->thinktimeop(&progfuncs->funcs, (struct edict_s *)PROG_TO_EDICT(progfuncs, OPA->edict), OPB->_float);
break;
case OP_MULSTORE_F:
/*OPC->_float = */OPB->_float *= OPA->_float;
break;
case OP_MULSTORE_VF:
tmpf = OPA->_float; //don't break on vec*=vec_x;
/*OPC->_vector[0] = */OPB->_vector[0] *= tmpf;
/*OPC->_vector[1] = */OPB->_vector[1] *= tmpf;
/*OPC->_vector[2] = */OPB->_vector[2] *= tmpf;
break;
case OP_MULSTOREP_F:
if (QCPOINTERWRITEFAIL(OPB, sizeof(float)))
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer write in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPB->_int, prinst.addressableused);
}
ptr = QCPOINTER(OPB);
OPC->_float = ptr->_float *= OPA->_float;
break;
case OP_MULSTOREP_VF:
if (QCPOINTERWRITEFAIL(OPB, sizeof(float)))
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer write in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPB->_int, prinst.addressableused);
}
ptr = QCPOINTER(OPB);
tmpf = OPA->_float; //don't break on vec*=vec_x;
OPC->_vector[0] = ptr->_vector[0] *= tmpf;
OPC->_vector[1] = ptr->_vector[1] *= tmpf;
OPC->_vector[2] = ptr->_vector[2] *= tmpf;
break;
case OP_DIVSTORE_F:
/*OPC->_float = */OPB->_float /= OPA->_float;
break;
case OP_DIVSTOREP_F:
if (QCPOINTERWRITEFAIL(OPB, sizeof(float)))
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer write in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPB->_int, prinst.addressableused);
}
ptr = QCPOINTER(OPB);
OPC->_float = ptr->_float /= OPA->_float;
break;
case OP_ADDSTORE_F:
/*OPC->_float = */OPB->_float += OPA->_float;
break;
case OP_ADDSTORE_V:
/*OPC->_vector[0] =*/ OPB->_vector[0] += OPA->_vector[0];
/*OPC->_vector[1] =*/ OPB->_vector[1] += OPA->_vector[1];
/*OPC->_vector[2] =*/ OPB->_vector[2] += OPA->_vector[2];
break;
case OP_ADDSTOREP_F:
if (QCPOINTERWRITEFAIL(OPB, sizeof(float)))
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer write in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPB->_int, prinst.addressableused);
}
ptr = QCPOINTER(OPB);
OPC->_float = ptr->_float += OPA->_float;
break;
case OP_ADDSTOREP_V:
if (QCPOINTERWRITEFAIL(OPB, sizeof(float)))
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer write in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPB->_int, prinst.addressableused);
}
ptr = QCPOINTER(OPB);
OPC->_vector[0] = ptr->_vector[0] += OPA->_vector[0];
OPC->_vector[1] = ptr->_vector[1] += OPA->_vector[1];
OPC->_vector[2] = ptr->_vector[2] += OPA->_vector[2];
break;
case OP_SUBSTORE_F:
/*OPC->_float = */OPB->_float -= OPA->_float;
break;
case OP_SUBSTORE_V:
/*OPC->_vector[0] = */OPB->_vector[0] -= OPA->_vector[0];
/*OPC->_vector[1] = */OPB->_vector[1] -= OPA->_vector[1];
/*OPC->_vector[2] = */OPB->_vector[2] -= OPA->_vector[2];
break;
case OP_SUBSTOREP_F:
if (QCPOINTERWRITEFAIL(OPB, sizeof(float)))
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer write in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPB->_int, prinst.addressableused);
}
ptr = QCPOINTER(OPB);
OPC->_float = ptr->_float -= OPA->_float;
break;
case OP_SUBSTOREP_V:
if (QCPOINTERWRITEFAIL(OPB, sizeof(float)))
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer write in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPB->_int, prinst.addressableused);
}
ptr = QCPOINTER(OPB);
OPC->_vector[0] = ptr->_vector[0] -= OPA->_vector[0];
OPC->_vector[1] = ptr->_vector[1] -= OPA->_vector[1];
OPC->_vector[2] = ptr->_vector[2] -= OPA->_vector[2];
break;
case OP_BITSETSTORE_F:
OPB->_float = (int)OPB->_float | (int)OPA->_float;
break;
case OP_BITSETSTOREP_F:
if (QCPOINTERWRITEFAIL(OPB, sizeof(float)))
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer write in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPB->_int, prinst.addressableused);
}
ptr = QCPOINTER(OPB);
ptr->_float = (int)ptr->_float | (int)OPA->_float;
break;
case OP_BITCLRSTORE_F:
OPB->_float = (int)OPB->_float & ~(int)OPA->_float;
break;
case OP_BITCLRSTOREP_F:
if (QCPOINTERWRITEFAIL(OPB, sizeof(float)))
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad pointer write in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPB->_int, prinst.addressableused);
}
ptr = QCPOINTER(OPB);
ptr->_float = (int)ptr->_float & ~(int)OPA->_float;
break;
//for scaler randoms, prevent the random value from ever reaching 1
//this avoids issues when array[random()*array.length]
case OP_RAND0:
OPC->_float = (rand ()&0x7fff) / ((float)0x8000);
break;
case OP_RAND1:
OPC->_float = (rand ()&0x7fff) / ((float)0x8000)*OPA->_float;
break;
case OP_RAND2: //backwards range shouldn't matter (except that it is b that is never reached, rather than the higher of the two)
OPC->_float = OPA->_float + (rand ()&0x7fff) / ((float)0x8000)*(OPB->_float-OPA->_float);
break;
//random vectors DO result in 0 to 1 inclusive, to try to ensure a more balanced range
case OP_RANDV0:
OPC->_vector[0] = (rand ()&0x7fff) / ((float)0x7fff);
OPC->_vector[1] = (rand ()&0x7fff) / ((float)0x7fff);
OPC->_vector[2] = (rand ()&0x7fff) / ((float)0x7fff);
break;
case OP_RANDV1:
OPC->_vector[0] = (rand ()&0x7fff) / ((float)0x7fff)*OPA->_vector[0];
OPC->_vector[1] = (rand ()&0x7fff) / ((float)0x7fff)*OPA->_vector[1];
OPC->_vector[2] = (rand ()&0x7fff) / ((float)0x7fff)*OPA->_vector[2];
break;
case OP_RANDV2: //backwards range shouldn't matter
OPC->_vector[0] = OPA->_vector[0] + (rand ()&0x7fff) / ((float)0x7fff)*(OPB->_vector[0]-OPA->_vector[0]);
OPC->_vector[1] = OPA->_vector[1] + (rand ()&0x7fff) / ((float)0x7fff)*(OPB->_vector[1]-OPA->_vector[1]);
OPC->_vector[2] = OPA->_vector[2] + (rand ()&0x7fff) / ((float)0x7fff)*(OPB->_vector[2]-OPA->_vector[2]);
break;
case OP_SWITCH_F:
case OP_SWITCH_V:
case OP_SWITCH_S:
case OP_SWITCH_E:
case OP_SWITCH_FNC:
//the case opcodes depend upon the preceding switch.
//otherwise the switch itself is much like a goto
//don't embed the case/caserange checks directly into the switch so that custom caseranges can be potentially be implemented with hybrid emulation.
switchcomparison = OPCODE - OP_SWITCH_F;
switchref = OPA;
RUNAWAYCHECK();
st += (sofs)st->b - 1; // offset the s++
break;
case OP_CASE:
//if the comparison is true, jump (back up) to the relevent code block
if (casecmp[switchcomparison](progfuncs, switchref, OPA))
{
RUNAWAYCHECK();
st += (sofs)st->b-1; // -1 to offset the s++
}
break;
case OP_CASERANGE:
//if the comparison is true, jump (back up) to the relevent code block
if (casecmprange[switchcomparison](progfuncs, switchref, OPA, OPC))
{
RUNAWAYCHECK();
st += (sofs)st->c-1; // -1 to offset the s++
}
break;
case OP_BITAND_IF:
OPC->_int = (OPA->_int & (int)OPB->_float);
break;
case OP_BITOR_IF:
OPC->_int = (OPA->_int | (int)OPB->_float);
break;
case OP_BITAND_FI:
OPC->_int = ((int)OPA->_float & OPB->_int);
break;
case OP_BITOR_FI:
OPC->_int = ((int)OPA->_float | OPB->_int);
break;
case OP_MUL_IF:
OPC->_float = (OPA->_int * OPB->_float);
break;
case OP_MUL_FI:
OPC->_float = (OPA->_float * OPB->_int);
break;
case OP_MUL_VI:
tmpi = OPB->_int;
OPC->_vector[0] = OPA->_vector[0] * tmpi;
OPC->_vector[1] = OPA->_vector[1] * tmpi;
OPC->_vector[2] = OPA->_vector[2] * tmpi;
break;
case OP_MUL_IV:
tmpi = OPA->_int;
OPC->_vector[0] = tmpi * OPB->_vector[0];
OPC->_vector[1] = tmpi * OPB->_vector[1];
OPC->_vector[2] = tmpi * OPB->_vector[2];
break;
case OP_DIV_IF:
OPC->_float = (OPA->_int / OPB->_float);
break;
case OP_DIV_FI:
OPC->_float = (OPA->_float / OPB->_int);
break;
case OP_AND_I:
OPC->_int = (OPA->_int && OPB->_int);
break;
case OP_OR_I:
OPC->_int = (OPA->_int || OPB->_int);
break;
case OP_AND_IF:
OPC->_int = (OPA->_int && OPB->_float);
break;
case OP_OR_IF:
OPC->_int = (OPA->_int || OPB->_float);
break;
case OP_AND_FI:
OPC->_int = (OPA->_float && OPB->_int);
break;
case OP_OR_FI:
OPC->_int = (OPA->_float || OPB->_int);
break;
case OP_NOT_I:
OPC->_int = !OPA->_int;
break;
case OP_NE_IF:
OPC->_int = (OPA->_int != OPB->_float);
break;
case OP_NE_FI:
OPC->_int = (OPA->_float != OPB->_int);
break;
case OP_GADDRESS: //return glob[aint+bfloat]
//this instruction is not implemented due to the weirdness of it.
//its theoretically a more powerful load... but untyped?
//or is it meant to be an LEA instruction (that could simply be switched with OP_GLOAD_I)
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "OP_GADDRESS not implemented (found in %s)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name));
break;
case OP_GLOAD_I:
case OP_GLOAD_F:
case OP_GLOAD_FLD:
case OP_GLOAD_ENT:
case OP_GLOAD_S:
case OP_GLOAD_FNC:
if (OPA->_int < 0 || OPA->_int*4 >= current_progstate->globals_size)
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad indexed global read in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPA->_int, current_progstate->globals_size);
}
ptr = ((eval_t *)&glob[OPA->_int]);
OPC->_int = ptr->_int;
break;
case OP_GLOAD_V:
if (OPA->_int < 0 || (OPA->_int+2)*4 >= current_progstate->globals_size)
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad indexed global read in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPA->_int, current_progstate->globals_size);
}
ptr = ((eval_t *)&glob[OPA->_int]);
OPC->_vector[0] = ptr->_vector[0];
OPC->_vector[1] = ptr->_vector[1];
OPC->_vector[2] = ptr->_vector[2];
break;
case OP_GSTOREP_I:
case OP_GSTOREP_F:
case OP_GSTOREP_ENT:
case OP_GSTOREP_FLD:
case OP_GSTOREP_S:
case OP_GSTOREP_FNC:
if (OPB->_int < 0 || OPB->_int*4 >= current_progstate->globals_size)
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad indexed global write in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPB->_int, prinst.addressableused);
}
ptr = ((eval_t *)&glob[OPB->_int]);
ptr->_int = OPA->_int;
break;
case OP_GSTOREP_V:
if (OPB->_int < 0 || (OPB->_int+2)*4 >= current_progstate->globals_size)
{
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "bad indexed global write in %s (%x >= %x)", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name), OPB->_int, prinst.addressableused);
}
ptr = ((eval_t *)&glob[OPB->_int]);
ptr->_vector[0] = OPA->_vector[0];
ptr->_vector[1] = OPA->_vector[1];
ptr->_vector[2] = OPA->_vector[2];
break;
case OP_BOUNDCHECK:
if ((unsigned int)OPA->_int < (unsigned int)st->c || (unsigned int)OPA->_int >= (unsigned int)st->b)
{
printf("Progs boundcheck failed. Value is %i. Must be between %u and %u\n", OPA->_int, st->c, st->b);
s=ShowStep(progfuncs, st - pr_statements);
if (st == pr_statements + s)
PR_RunError(&progfuncs->funcs, "unable to resume boundcheck");
st = pr_statements + s;
return s;
}
break;
/* case OP_PUSH:
OPC->_int = ENGINEPOINTER(&localstack[localstack_used+pr_spushed]);
pr_spushed += OPA->_int;
if (pr_spushed + localstack_used >= LOCALSTACK_SIZE)
{
pr_spushed = 0;
pr_xstatement = st-pr_statements;
PR_RunError(progfuncs, "Progs pushed too much");
}
break;
case OP_POP:
pr_spushed -= OPA->_int;
if (pr_spushed < 0)
{
pr_spushed = 0;
pr_xstatement = st-pr_statements;
PR_RunError(progfuncs, "Progs poped more than it pushed");
}
break;
*/
default:
if (st->op & 0x8000) //break point!
{
pr_xstatement = s = st-pr_statements;
printf("Break point hit in %s.\n", PR_StringToNative(&progfuncs->funcs, pr_xfunction->s_name));
if (progfuncs->funcs.pr_trace<1)
progfuncs->funcs.pr_trace=1; //this is what it's for
s = ShowStep(progfuncs, s);
st = &pr_statements[s]; //let the user move execution
pr_xstatement = s = st-pr_statements;
goto reeval; //reexecute
}
pr_xstatement = st-pr_statements;
PR_RunError (&progfuncs->funcs, "Bad opcode %i", st->op);
}
}
#undef cont
#undef reeval
#undef st
#undef pr_statements
#undef fakeop
#undef dstatement_t
#undef sofs
#undef OPCODE
#undef ENGINEPOINTER
#undef QCPOINTER
#undef QCPOINTERM
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