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Location: cpp/openttd-patchpack/source/src/3rdparty/squirrel/squirrel/sqclass.cpp - annotation
r24860:fb2788d47d86
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Codechange: [OSX] Only keep a total dirty rect for drawing.
When drawing an 8bpp screen buffer, palette resolving was done for each
dirty rectangle. In areas with high activity, this would mean a pixel might
have been resolved multiple times. Also, if too many individual updates
were queued, the whole screen would be refreshed, even if unnecessary.
All other drivers only keep one overall dirty rect, so do it here as well.
When drawing an 8bpp screen buffer, palette resolving was done for each
dirty rectangle. In areas with high activity, this would mean a pixel might
have been resolved multiple times. Also, if too many individual updates
were queued, the whole screen would be refreshed, even if unnecessary.
All other drivers only keep one overall dirty rect, so do it here as well.
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* see copyright notice in squirrel.h
*/
#include "../../../stdafx.h"
#include "sqpcheader.h"
#include "sqvm.h"
#include "sqtable.h"
#include "sqclass.h"
#include "sqclosure.h"
#include "../../../safeguards.h"
SQClass::SQClass(SQSharedState *ss,SQClass *base)
{
_base = base;
_typetag = 0;
_hook = NULL;
_udsize = 0;
_metamethods.resize(MT_LAST); //size it to max size
if(_base) {
_defaultvalues.copy(base->_defaultvalues);
_methods.copy(base->_methods);
_metamethods.copy(base->_metamethods);
__ObjAddRef(_base);
}
_members = base?base->_members->Clone() : SQTable::Create(ss,0);
__ObjAddRef(_members);
_locked = false;
INIT_CHAIN();
ADD_TO_CHAIN(&_sharedstate->_gc_chain, this);
}
void SQClass::Finalize() {
_attributes = _null_;
_defaultvalues.resize(0);
_methods.resize(0);
_metamethods.resize(0);
__ObjRelease(_members);
if(_base) {
__ObjRelease(_base);
}
}
SQClass::~SQClass()
{
REMOVE_FROM_CHAIN(&_sharedstate->_gc_chain, this);
Finalize();
}
bool SQClass::NewSlot(SQSharedState *ss,const SQObjectPtr &key,const SQObjectPtr &val,bool bstatic)
{
SQObjectPtr temp;
if(_locked)
return false; //the class already has an instance so cannot be modified
if(_members->Get(key,temp) && _isfield(temp)) //overrides the default value
{
_defaultvalues[_member_idx(temp)].val = val;
return true;
}
if(type(val) == OT_CLOSURE || type(val) == OT_NATIVECLOSURE || bstatic) {
SQInteger mmidx;
if((type(val) == OT_CLOSURE || type(val) == OT_NATIVECLOSURE) &&
(mmidx = ss->GetMetaMethodIdxByName(key)) != -1) {
_metamethods[mmidx] = val;
}
else {
if(type(temp) == OT_NULL) {
SQClassMember m;
m.val = val;
_members->NewSlot(key,SQObjectPtr(_make_method_idx(_methods.size())));
_methods.push_back(m);
}
else {
_methods[_member_idx(temp)].val = val;
}
}
return true;
}
SQClassMember m;
m.val = val;
_members->NewSlot(key,SQObjectPtr(_make_field_idx(_defaultvalues.size())));
_defaultvalues.push_back(m);
return true;
}
SQInstance *SQClass::CreateInstance()
{
if(!_locked) Lock();
return SQInstance::Create(_opt_ss(this),this);
}
SQInteger SQClass::Next(const SQObjectPtr &refpos, SQObjectPtr &outkey, SQObjectPtr &outval)
{
SQObjectPtr oval;
SQInteger idx = _members->Next(false,refpos,outkey,oval);
if(idx != -1) {
if(_ismethod(oval)) {
outval = _methods[_member_idx(oval)].val;
}
else {
SQObjectPtr &o = _defaultvalues[_member_idx(oval)].val;
outval = _realval(o);
}
}
return idx;
}
bool SQClass::SetAttributes(const SQObjectPtr &key,const SQObjectPtr &val)
{
SQObjectPtr idx;
if(_members->Get(key,idx)) {
if(_isfield(idx))
_defaultvalues[_member_idx(idx)].attrs = val;
else
_methods[_member_idx(idx)].attrs = val;
return true;
}
return false;
}
bool SQClass::GetAttributes(const SQObjectPtr &key,SQObjectPtr &outval)
{
SQObjectPtr idx;
if(_members->Get(key,idx)) {
outval = (_isfield(idx)?_defaultvalues[_member_idx(idx)].attrs:_methods[_member_idx(idx)].attrs);
return true;
}
return false;
}
///////////////////////////////////////////////////////////////////////
void SQInstance::Init(SQSharedState *ss)
{
_userpointer = NULL;
_hook = NULL;
__ObjAddRef(_class);
_delegate = _class->_members;
INIT_CHAIN();
ADD_TO_CHAIN(&_sharedstate->_gc_chain, this);
}
SQInstance::SQInstance(SQSharedState *ss, SQClass *c, SQInteger memsize)
{
_memsize = memsize;
_class = c;
SQUnsignedInteger nvalues = _class->_defaultvalues.size();
for(SQUnsignedInteger n = 0; n < nvalues; n++) {
new (&_values[n]) SQObjectPtr(_class->_defaultvalues[n].val);
}
Init(ss);
}
SQInstance::SQInstance(SQSharedState *ss, SQInstance *i, SQInteger memsize)
{
_memsize = memsize;
_class = i->_class;
SQUnsignedInteger nvalues = _class->_defaultvalues.size();
for(SQUnsignedInteger n = 0; n < nvalues; n++) {
new (&_values[n]) SQObjectPtr(i->_values[n]);
}
Init(ss);
}
void SQInstance::Finalize()
{
SQUnsignedInteger nvalues = _class->_defaultvalues.size();
__ObjRelease(_class);
for(SQUnsignedInteger i = 0; i < nvalues; i++) {
_values[i] = _null_;
}
}
SQInstance::~SQInstance()
{
REMOVE_FROM_CHAIN(&_sharedstate->_gc_chain, this);
if(_class){ Finalize(); } //if _class is null it was already finalized by the GC
}
bool SQInstance::GetMetaMethod(SQVM *v,SQMetaMethod mm,SQObjectPtr &res)
{
if(type(_class->_metamethods[mm]) != OT_NULL) {
res = _class->_metamethods[mm];
return true;
}
return false;
}
bool SQInstance::InstanceOf(SQClass *trg)
{
SQClass *parent = _class;
while(parent != NULL) {
if(parent == trg)
return true;
parent = parent->_base;
}
return false;
}
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