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If menu optimization is enabled, optimize away unnecessary if statements

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This commit is contained in:
Jan 2022-01-01 23:12:27 +01:00
parent 8a3bbf948b
commit 98d62039eb
1 changed files with 51 additions and 50 deletions
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75
src/ObjLoading/Game/IW4/Menu/MenuConverterIW4.cpp
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@ -223,8 +223,11 @@ namespace IW4
OP_SUBTRACT
};
static bool IsOperation(const ISimpleExpression* expression)
bool IsOperation(const ISimpleExpression* expression) const
{
if (!m_disable_optimizations && expression->IsStatic())
return false;
return dynamic_cast<const SimpleExpressionBinaryOperation*>(expression) || dynamic_cast<const SimpleExpressionUnaryOperation*>(expression);
}
@ -537,11 +540,11 @@ namespace IW4
}
}
MenuEventHandler* ConvertEventHandlerSetLocalVar(const CommonEventHandlerSetLocalVar* setLocalVar, const CommonMenuDef* menu, const CommonItemDef* item) const
void ConvertEventHandlerSetLocalVar(std::vector<MenuEventHandler*>& elements, const CommonEventHandlerSetLocalVar* setLocalVar, const CommonMenuDef* menu, const CommonItemDef* item) const
{
assert(setLocalVar);
if (!setLocalVar)
return nullptr;
return;
auto* outputHandler = static_cast<MenuEventHandler*>(m_memory->Alloc(sizeof(MenuEventHandler) + sizeof(SetLocalVarData)));
auto* outputSetLocalVar = reinterpret_cast<SetLocalVarData*>(reinterpret_cast<int8_t*>(outputHandler) + sizeof(MenuEventHandler));
@ -552,29 +555,40 @@ namespace IW4
outputSetLocalVar->localVarName = m_memory->Dup(setLocalVar->m_var_name.c_str());
outputSetLocalVar->expression = ConvertExpression(setLocalVar->m_value.get(), menu, item);
return outputHandler;
elements.push_back(outputHandler);
}
MenuEventHandler* ConvertEventHandlerScript(const CommonEventHandlerScript* script) const
void ConvertEventHandlerScript(std::vector<MenuEventHandler*>& elements, const CommonEventHandlerScript* script) const
{
assert(script);
if (!script)
return nullptr;
return;
auto* outputHandler = m_memory->Create<MenuEventHandler>();
outputHandler->eventType = EVENT_UNCONDITIONAL;
outputHandler->eventData.unconditionalScript = m_memory->Dup(script->m_script.c_str());
return outputHandler;
elements.push_back(outputHandler);
}
void ConvertEventHandlerCondition(MenuEventHandler** eventHandlerArray, size_t& eventHandlerArrayIndex, const CommonEventHandlerCondition* condition, const CommonMenuDef* menu,
void ConvertEventHandlerCondition(std::vector<MenuEventHandler*>& elements, const CommonEventHandlerCondition* condition, const CommonMenuDef* menu,
const CommonItemDef* item) const
{
assert(condition);
if (!condition)
if (!condition || !condition->m_condition)
return;
if(!m_disable_optimizations && condition->m_condition->IsStatic())
{
const auto staticValueIsTruthy = condition->m_condition->Evaluate().IsTruthy();
if(staticValueIsTruthy)
ConvertEventHandlerElements(elements, condition->m_condition_elements.get(), menu, item);
else if(condition->m_else_elements)
ConvertEventHandlerElements(elements, condition->m_else_elements.get(), menu, item);
}
else
{
auto* outputHandler = static_cast<MenuEventHandler*>(m_memory->Alloc(sizeof(MenuEventHandler) + sizeof(ConditionalScript)));
auto* outputCondition = reinterpret_cast<ConditionalScript*>(reinterpret_cast<int8_t*>(outputHandler) + sizeof(MenuEventHandler));
@ -584,21 +598,20 @@ namespace IW4
outputCondition->eventExpression = ConvertExpression(condition->m_condition.get(), menu, item);
outputCondition->eventHandlerSet = ConvertEventHandlerSet(condition->m_condition_elements.get(), menu, item);
eventHandlerArray[eventHandlerArrayIndex] = outputHandler;
elements.push_back(outputHandler);
if (condition->m_else_elements)
{
eventHandlerArrayIndex++;
auto* outputElseHandler = m_memory->Create<MenuEventHandler>();
outputElseHandler->eventType = EVENT_ELSE;
outputElseHandler->eventData.elseScript = ConvertEventHandlerSet(condition->m_else_elements.get(), menu, item);
eventHandlerArray[eventHandlerArrayIndex] = outputElseHandler;
elements.push_back(outputElseHandler);
}
}
}
void ConvertEventHandler(MenuEventHandler** eventHandlerArray, size_t& eventHandlerArrayIndex, const ICommonEventHandlerElement* eventHandler, const CommonMenuDef* menu,
void ConvertEventHandler(std::vector<MenuEventHandler*>& elements, const ICommonEventHandlerElement* eventHandler, const CommonMenuDef* menu,
const CommonItemDef* item) const
{
assert(eventHandler);
@ -608,31 +621,23 @@ namespace IW4
switch (eventHandler->GetType())
{
case CommonEventHandlerElementType::CONDITION:
ConvertEventHandlerCondition(eventHandlerArray, eventHandlerArrayIndex, dynamic_cast<const CommonEventHandlerCondition*>(eventHandler), menu, item);
ConvertEventHandlerCondition(elements, dynamic_cast<const CommonEventHandlerCondition*>(eventHandler), menu, item);
break;
case CommonEventHandlerElementType::SCRIPT:
eventHandlerArray[eventHandlerArrayIndex] = ConvertEventHandlerScript(dynamic_cast<const CommonEventHandlerScript*>(eventHandler));
ConvertEventHandlerScript(elements, dynamic_cast<const CommonEventHandlerScript*>(eventHandler));
break;
case CommonEventHandlerElementType::SET_LOCAL_VAR:
eventHandlerArray[eventHandlerArrayIndex] = ConvertEventHandlerSetLocalVar(dynamic_cast<const CommonEventHandlerSetLocalVar*>(eventHandler), menu, item);
ConvertEventHandlerSetLocalVar(elements, dynamic_cast<const CommonEventHandlerSetLocalVar*>(eventHandler), menu, item);
break;
}
}
_NODISCARD static size_t EventHandlerSetElementCount(const CommonEventHandlerSet* eventHandlerSet)
void ConvertEventHandlerElements(std::vector<MenuEventHandler*>& elements, const CommonEventHandlerSet* eventHandlerSet, const CommonMenuDef* menu, const CommonItemDef* item) const
{
auto elementCount = 0u;
for (const auto& element : eventHandlerSet->m_elements)
{
auto* condition = dynamic_cast<const CommonEventHandlerCondition*>(element.get());
if (condition && condition->m_else_elements)
elementCount += 2;
else
elementCount++;
}
return elementCount;
ConvertEventHandler(elements, element.get(), menu, item);
}
_NODISCARD MenuEventHandlerSet* ConvertEventHandlerSet(const CommonEventHandlerSet* eventHandlerSet, const CommonMenuDef* menu, const CommonItemDef* item = nullptr) const
@ -640,20 +645,16 @@ namespace IW4
if (!eventHandlerSet)
return nullptr;
const auto elementCount = EventHandlerSetElementCount(eventHandlerSet);
auto* outputSet = static_cast<MenuEventHandlerSet*>(m_memory->Alloc(sizeof(MenuEventHandlerSet) + sizeof(void*) * elementCount));
std::vector<MenuEventHandler*> elements;
ConvertEventHandlerElements(elements, eventHandlerSet, menu, item);
auto* outputSet = static_cast<MenuEventHandlerSet*>(m_memory->Alloc(sizeof(MenuEventHandlerSet) + sizeof(void*) * elements.size()));
auto* outputElements = reinterpret_cast<MenuEventHandler**>(reinterpret_cast<int8_t*>(outputSet) + sizeof(MenuEventHandlerSet));
memcpy(outputElements, &elements[0], sizeof(void*) * elements.size());
outputSet->eventHandlerCount = static_cast<int>(elementCount);
outputSet->eventHandlerCount = static_cast<int>(elements.size());
outputSet->eventHandlers = outputElements;
auto eventHandlerIndex = 0u;
for (const auto& element : eventHandlerSet->m_elements)
{
ConvertEventHandler(outputElements, eventHandlerIndex, element.get(), menu, item);
eventHandlerIndex++;
}
return outputSet;
}