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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "ags/engine/script/script_runtime.h"
#include "ags/engine/ac/dynobj/cc_dynamic_array.h"
#include "ags/shared/script/cc_common.h"
#include "ags/engine/script/system_imports.h"
#include "ags/globals.h"
namespace AGS3 {
bool ccAddExternalStaticFunction(const String &name, ScriptAPIFunction *pfn) {
return _GP(simp).add(name, RuntimeScriptValue().SetStaticFunction(pfn), nullptr) != UINT32_MAX;
}
bool ccAddExternalObjectFunction(const String &name, ScriptAPIObjectFunction *pfn) {
return _GP(simp).add(name, RuntimeScriptValue().SetObjectFunction(pfn), nullptr) != UINT32_MAX;
}
bool ccAddExternalFunctionForPlugin(const String &name, Plugins::ScriptContainer *instance) {
return _GP(simp_for_plugin).add(name, RuntimeScriptValue().SetPluginMethod(instance, name), nullptr) != UINT32_MAX;
}
bool ccAddExternalStaticFunction361(const String &name, ScriptAPIFunction *scfn, void *dirfn) {
return _GP(simp).add(name, RuntimeScriptValue().SetStaticFunction(scfn), nullptr) != UINT32_MAX &&
(!dirfn ||
_GP(simp_for_plugin).add(name, RuntimeScriptValue().SetPluginMethod((Plugins::ScriptContainer *)dirfn, name), nullptr) != UINT32_MAX);
}
bool ccAddExternalObjectFunction361(const String &name, ScriptAPIObjectFunction *scfn, void *dirfn) {
return _GP(simp).add(name, RuntimeScriptValue().SetObjectFunction(scfn), nullptr) != UINT32_MAX &&
(!dirfn ||
_GP(simp_for_plugin).add(name, RuntimeScriptValue().SetPluginMethod((Plugins::ScriptContainer *)dirfn, name), nullptr) != UINT32_MAX);
}
bool ccAddExternalFunction361(const ScFnRegister &scfnreg) {
String name = String::Wrapper(scfnreg.Name);
return _GP(simp).add(name, scfnreg.Fn, nullptr) != UINT32_MAX &&
(scfnreg.PlFn.IsNull() ||
_GP(simp_for_plugin).add(name, scfnreg.PlFn, nullptr) != UINT32_MAX);
}
bool ccAddExternalPluginFunction(const String &name, Plugins::ScriptContainer *instance) {
return _GP(simp).add(name, RuntimeScriptValue().SetPluginMethod(instance, name), nullptr) != UINT32_MAX;
}
bool ccAddExternalStaticArray(const String &name, void *ptr, CCStaticArray *array_mgr) {
return _GP(simp).add(name, RuntimeScriptValue().SetStaticArray(ptr, array_mgr), nullptr) != UINT32_MAX;
}
bool ccAddExternalScriptObject(const String &name, void *ptr, IScriptObject *manager) {
return _GP(simp).add(name, RuntimeScriptValue().SetScriptObject(ptr, manager), nullptr) != UINT32_MAX;
}
bool ccAddExternalScriptSymbol(const String &name, const RuntimeScriptValue &prval, ccInstance *inst) {
return _GP(simp).add(name, prval, inst) != UINT32_MAX;
}
void ccRemoveExternalSymbol(const String &name) {
_GP(simp).remove(name);
}
void ccRemoveAllSymbols() {
_GP(simp).clear();
}
void *ccGetSymbolAddress(const String &name) {
const ScriptImport *import = _GP(simp).getByName(name);
if (import) {
return import->Value.Ptr;
}
return nullptr;
}
Plugins::PluginMethod ccGetSymbolAddressForPlugin(const String &name) {
const ScriptImport *import = _GP(simp_for_plugin).getByName(name);
if (import) {
return Plugins::PluginMethod((Plugins::ScriptContainer *)import->Value.Ptr, name);
} else {
// Also search the internal symbol table for non-function symbols
import = _GP(simp).getByName(name);
if (import) {
return Plugins::PluginMethod((Plugins::ScriptContainer *)import->Value.Ptr, name);
}
}
return Plugins::PluginMethod();
}
void *ccGetScriptObjectAddress(const String &name, const String &type) {
const auto *imp = _GP(simp).getByName(name);
if (!imp)
return nullptr;
if (imp->Value.Type != kScValScriptObject && imp->Value.Type != kScValPluginObject)
return nullptr;
if (type != imp->Value.ObjMgr->GetType())
return nullptr;
return imp->Value.Ptr;
}
void ccSetScriptAliveTimer(unsigned sys_poll_timeout, unsigned abort_timeout, unsigned abort_loops) {
ccInstance::SetExecTimeout(sys_poll_timeout, abort_timeout, abort_loops);
}
void ccNotifyScriptStillAlive() {
ccInstance *cur_inst = ccInstance::GetCurrentInstance();
if (cur_inst)
cur_inst->NotifyAlive();
}
void ccSetDebugHook(new_line_hook_type jibble) {
_G(new_line_hook) = jibble;
}
NumberPtr call_function(const Plugins::PluginMethod &method, const RuntimeScriptValue *object, int numparm, const RuntimeScriptValue *parms) {
if (!method) {
cc_error("invalid method in call_function");
return -1;
}
if (numparm > 0 && !parms) {
cc_error("invalid parameters array in call_function");
return -1;
}
intptr_t parm_value[9];
if (object) {
parm_value[0] = (intptr_t)object->GetPtrWithOffset();
numparm++;
}
for (int ival = object ? 1 : 0, iparm = 0; ival < numparm; ++ival, ++iparm) {
switch (parms[iparm].Type) {
case kScValInteger:
case kScValFloat: // AGS passes floats, copying their values into long variable
case kScValPluginArg:
parm_value[ival] = (intptr_t)parms[iparm].IValue;
break;
break;
default:
parm_value[ival] = (intptr_t)parms[iparm].GetPtrWithOffset();
break;
}
}
// AN IMPORTANT NOTE ON PARAMS
// The original AGS interpreter did a bunch of dodgy function pointers with
// varying numbers of parameters, which were all intptr_t. To simply matters
// now that we only supported plugins implemented in code, and not DLLs,
// we use a simplified Common::Array containing the parameters and result
if (numparm > 9) {
cc_error("too many arguments in call to function");
return -1;
} else {
// Build the parameters
Plugins::ScriptMethodParams params;
for (int i = 0; i < numparm; ++i)
params.push_back(parm_value[i]);
// Call the method
return method(params);
}
}
} // namespace AGS3
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