1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/extensions/sdktools/vcallbuilder.cpp	Sat Jun 16 08:36:34 2007 +0000
     1.3 @@ -0,0 +1,136 @@
     1.4 +#include "vcallbuilder.h"
     1.5 +#include "extension.h"
     1.6 +
     1.7 +ValveCall::~ValveCall()
     1.8 +{
     1.9 +	while (!stk.empty())
    1.10 +	{
    1.11 +		unsigned char *ptr = stk.front();
    1.12 +		delete [] ptr;
    1.13 +		stk.pop();
    1.14 +	}
    1.15 +	call->Destroy();
    1.16 +	delete [] retbuf;
    1.17 +	delete [] vparams;
    1.18 +}
    1.19 +
    1.20 +unsigned char *ValveCall::stk_get()
    1.21 +{
    1.22 +	unsigned char *ptr;
    1.23 +	if (stk.empty())
    1.24 +	{
    1.25 +		ptr = new unsigned char[stackSize];
    1.26 +	} else {
    1.27 +		ptr = stk.front();
    1.28 +		stk.pop();
    1.29 +	}
    1.30 +	return ptr;
    1.31 +}
    1.32 +
    1.33 +void ValveCall::stk_put(unsigned char *ptr)
    1.34 +{
    1.35 +	stk.push(ptr);
    1.36 +}
    1.37 +
    1.38 +ValveCall *CreateValveVCall(unsigned int vtableIdx,
    1.39 +							ValveCallType vcalltype,
    1.40 +							const ValvePassInfo *retInfo,
    1.41 +							const ValvePassInfo *params,
    1.42 +							unsigned int numParams)
    1.43 +{
    1.44 +	if (numParams > 32)
    1.45 +	{
    1.46 +		return NULL;
    1.47 +	}
    1.48 +
    1.49 +	ValveCall *vc = new ValveCall;
    1.50 +
    1.51 +	size_t size = 0;
    1.52 +	vc->stackSize = 0;
    1.53 +
    1.54 +	/* Get return information - encode only*/
    1.55 +	PassInfo retBuf;
    1.56 +	size_t retBufSize = 0;
    1.57 +	if (retInfo)
    1.58 +	{
    1.59 +		if ((size = ValveParamToBinParam(retInfo->vtype, retInfo->type, retInfo->flags, &retBuf)) == 0)
    1.60 +		{
    1.61 +			delete vc;
    1.62 +			return NULL;
    1.63 +		}
    1.64 +		retBufSize = size;
    1.65 +	}
    1.66 +
    1.67 +	/* Get parameter info */
    1.68 +	PassInfo paramBuf[32];
    1.69 +	for (unsigned int i=0; i<numParams; i++)
    1.70 +	{
    1.71 +		if ((size = ValveParamToBinParam(params[i].vtype, params[i].type, params[i].flags, &paramBuf[i])) == 0)
    1.72 +		{
    1.73 +			delete vc;
    1.74 +			return NULL;
    1.75 +		}
    1.76 +		vc->stackSize += size;
    1.77 +	}
    1.78 +
    1.79 +	/* Now we can try creating the call */
    1.80 +	if ((vc->call = g_pBinTools->CreateVCall(vtableIdx, 
    1.81 +		0, 
    1.82 +		0, 
    1.83 +		(retInfo ? &retBuf : NULL),
    1.84 +		paramBuf,
    1.85 +		numParams))
    1.86 +		== NULL)
    1.87 +	{
    1.88 +		if (!vc->call)
    1.89 +		{
    1.90 +			delete vc;
    1.91 +			return NULL;
    1.92 +		}
    1.93 +	}
    1.94 +
    1.95 +	/* Allocate extra space for thisptr AND ret buffer, even if we don't use it */
    1.96 +	vc->vparams = new ValvePassInfo[numParams + 2];
    1.97 +
    1.98 +	/* We've got the call and everything is encoded.
    1.99 +	 * It's time to save the valve specific information and helper variables.
   1.100 +	 */
   1.101 +	if (retInfo)
   1.102 +	{
   1.103 +		/* Allocate and copy */
   1.104 +		vc->retinfo = &(vc->vparams[numParams]);
   1.105 +		*vc->retinfo = *retInfo;
   1.106 +		vc->retinfo->offset = 0;
   1.107 +		/* Allocate stack space */
   1.108 +		vc->retbuf = new unsigned char[retBufSize];
   1.109 +	} else {
   1.110 +		vc->retinfo = NULL;
   1.111 +		vc->retbuf = NULL;
   1.112 +	}
   1.113 +
   1.114 +	/* Save the this info for the dynamic decoder */
   1.115 +	vc->thisinfo = &(vc->vparams[numParams + 1]);
   1.116 +	vc->thisinfo->type = PassType_Basic;
   1.117 +	if (vcalltype == ValveCall_Entity)
   1.118 +	{
   1.119 +		vc->thisinfo->vtype = Valve_CBaseEntity;
   1.120 +		vc->thisinfo->decflags |= VDECODE_FLAG_ALLOWWORLD;
   1.121 +	} else if (vcalltype == ValveCall_Player) {
   1.122 +		vc->thisinfo->vtype = Valve_CBasePlayer;
   1.123 +		vc->thisinfo->decflags = 0;
   1.124 +	}
   1.125 +	vc->thisinfo->encflags = 0;
   1.126 +	vc->thisinfo->flags = PASSFLAG_BYVAL;
   1.127 +	vc->thisinfo->offset = 0;
   1.128 +	vc->stackSize += sizeof(void *);
   1.129 +
   1.130 +	/* Now, save info about each parameter. */
   1.131 +	for (unsigned int i=0; i<numParams; i++)
   1.132 +	{
   1.133 +		/* Copy */
   1.134 +		vc->vparams[i] = params[i];
   1.135 +		vc->vparams[i].offset = vc->call->GetParamInfo(i)->offset;
   1.136 +	}
   1.137 +
   1.138 +	return vc;
   1.139 +}