mirror of
https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-16 13:23:56 -07:00
c02a7e1a7b
This upgrade also introduces exact stack rooting (see to the wiki: JSRootingGuide) and fixes problems with moving GC. This allows us to enable generational garbage collection (GGC). Measurements a few months ago have shown a performance improvement of a non-visual replay of around 13.5%. This probably varies quite a bit, but it should be somewhere between 5-20%. Memory usage has also been improved. Check the forum thread for details. Thanks to everyone from the team who helped with this directly or indirectly (review, finding and fixing issues, the required C++11 upgrade, the new autobuilder etc.)! Also thanks to the SpiderMonkey developers who helped on the #jsapi channel or elsewhere! Fixes #2462, #2415, #2428, #2684, #1374 Refs #2973, #2669 This was SVN commit r16214.
292 lines
8.6 KiB
C++
292 lines
8.6 KiB
C++
/* Copyright (C) 2012 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "scriptinterface/ScriptInterface.h"
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#include "scriptinterface/ScriptExtraHeaders.h" // for typed arrays
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#include "maths/Fixed.h"
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#include "maths/FixedVector2D.h"
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#include "maths/FixedVector3D.h"
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#include "ps/CLogger.h"
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#include "ps/Overlay.h"
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#include "ps/utf16string.h"
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#include "simulation2/helpers/Grid.h"
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#include "simulation2/system/IComponent.h"
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#include "simulation2/system/ParamNode.h"
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#define FAIL(msg) STMT(JS_ReportError(cx, msg); return false)
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template<> void ScriptInterface::ToJSVal<IComponent*>(JSContext* cx, JS::MutableHandleValue ret, IComponent* const& val)
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{
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JSAutoRequest rq(cx);
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if (val == NULL)
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{
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ret.setNull();
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return;
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}
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// If this is a scripted component, just return the JS object directly
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JS::RootedValue instance(cx, val->GetJSInstance());
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if (!instance.isNull())
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{
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ret.set(instance);
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return;
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}
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// Otherwise we need to construct a wrapper object
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// (TODO: cache wrapper objects?)
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JS::RootedObject obj(cx);
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if (!val->NewJSObject(*ScriptInterface::GetScriptInterfaceAndCBData(cx)->pScriptInterface, &obj))
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{
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// Report as an error, since scripts really shouldn't try to use unscriptable interfaces
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LOGERROR("IComponent does not have a scriptable interface");
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ret.setUndefined();
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return;
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}
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JS_SetPrivate(obj, static_cast<void*>(val));
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ret.setObject(*obj);
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}
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template<> void ScriptInterface::ToJSVal<CParamNode>(JSContext* cx, JS::MutableHandleValue ret, CParamNode const& val)
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{
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JSAutoRequest rq(cx);
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val.ToJSVal(cx, true, ret);
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// Prevent modifications to the object, so that it's safe to share between
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// components and to reconstruct on deserialization
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if (ret.isObject())
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{
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JS::RootedObject obj(cx, &ret.toObject());
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JS_DeepFreezeObject(cx, obj);
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}
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}
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template<> void ScriptInterface::ToJSVal<const CParamNode*>(JSContext* cx, JS::MutableHandleValue ret, const CParamNode* const& val)
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{
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if (val)
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ToJSVal(cx, ret, *val);
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else
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ret.setUndefined();
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}
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template<> bool ScriptInterface::FromJSVal<CColor>(JSContext* cx, JS::HandleValue v, CColor& out)
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{
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if (!v.isObject())
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FAIL("JS::HandleValue not an object");
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JSAutoRequest rq(cx);
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JS::RootedObject obj(cx, &v.toObject());
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JS::RootedValue r(cx);
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JS::RootedValue g(cx);
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JS::RootedValue b(cx);
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JS::RootedValue a(cx);
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if (!JS_GetProperty(cx, obj, "r", &r) || !FromJSVal(cx, r, out.r))
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FAIL("Failed to get property CColor.r");
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if (!JS_GetProperty(cx, obj, "g", &g) || !FromJSVal(cx, g, out.g))
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FAIL("Failed to get property CColor.g");
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if (!JS_GetProperty(cx, obj, "b", &b) || !FromJSVal(cx, b, out.b))
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FAIL("Failed to get property CColor.b");
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if (!JS_GetProperty(cx, obj, "a", &a) || !FromJSVal(cx, a, out.a))
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FAIL("Failed to get property CColor.a");
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return true;
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}
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template<> void ScriptInterface::ToJSVal<CColor>(JSContext* cx, JS::MutableHandleValue ret, CColor const& val)
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{
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JSAutoRequest rq(cx);
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JS::RootedObject obj(cx, JS_NewObject(cx, nullptr, JS::NullPtr(), JS::NullPtr()));
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if (!obj)
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{
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ret.setUndefined();
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return;
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}
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JS::RootedValue r(cx);
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JS::RootedValue g(cx);
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JS::RootedValue b(cx);
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JS::RootedValue a(cx);
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ToJSVal(cx, &r, val.r);
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ToJSVal(cx, &g, val.g);
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ToJSVal(cx, &b, val.b);
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ToJSVal(cx, &a, val.a);
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JS_SetProperty(cx, obj, "r", r);
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JS_SetProperty(cx, obj, "g", g);
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JS_SetProperty(cx, obj, "b", b);
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JS_SetProperty(cx, obj, "a", a);
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ret.setObject(*obj);
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}
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template<> bool ScriptInterface::FromJSVal<fixed>(JSContext* cx, JS::HandleValue v, fixed& out)
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{
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JSAutoRequest rq(cx);
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double ret;
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if (!JS::ToNumber(cx, v, &ret))
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return false;
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out = fixed::FromDouble(ret);
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// double can precisely represent the full range of fixed, so this is a non-lossy conversion
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return true;
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}
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template<> void ScriptInterface::ToJSVal<fixed>(JSContext* UNUSED(cx), JS::MutableHandleValue ret, const fixed& val)
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{
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ret.set(JS::NumberValue(val.ToDouble()));
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}
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template<> bool ScriptInterface::FromJSVal<CFixedVector3D>(JSContext* cx, JS::HandleValue v, CFixedVector3D& out)
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{
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if (!v.isObject())
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return false; // TODO: report type error
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JSAutoRequest rq(cx);
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JS::RootedObject obj(cx, &v.toObject());
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JS::RootedValue p(cx);
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if (!JS_GetProperty(cx, obj, "x", &p)) return false; // TODO: report type errors
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if (!FromJSVal(cx, p, out.X)) return false;
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if (!JS_GetProperty(cx, obj, "y", &p)) return false;
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if (!FromJSVal(cx, p, out.Y)) return false;
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if (!JS_GetProperty(cx, obj, "z", &p)) return false;
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if (!FromJSVal(cx, p, out.Z)) return false;
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return true;
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}
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template<> void ScriptInterface::ToJSVal<CFixedVector3D>(JSContext* cx, JS::MutableHandleValue ret, const CFixedVector3D& val)
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{
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JSAutoRequest rq(cx);
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// apply the Vector3D prototype to the return value;
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ScriptInterface::CxPrivate* pCxPrivate = ScriptInterface::GetScriptInterfaceAndCBData(cx);
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JS::RootedObject proto(cx, &pCxPrivate->pScriptInterface->GetCachedValue(ScriptInterface::CACHE_VECTOR3DPROTO).toObject());
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JS::RootedObject obj(cx, JS_NewObject(cx, nullptr, proto, JS::NullPtr()));
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if (!obj)
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{
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ret.setUndefined();
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return;
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}
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JS::RootedValue x(cx);
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JS::RootedValue y(cx);
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JS::RootedValue z(cx);
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ToJSVal(cx, &x, val.X);
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ToJSVal(cx, &y, val.Y);
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ToJSVal(cx, &z, val.Z);
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JS_SetProperty(cx, obj, "x", x);
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JS_SetProperty(cx, obj, "y", y);
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JS_SetProperty(cx, obj, "z", z);
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ret.setObject(*obj);
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}
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template<> bool ScriptInterface::FromJSVal<CFixedVector2D>(JSContext* cx, JS::HandleValue v, CFixedVector2D& out)
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{
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JSAutoRequest rq(cx);
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if (!v.isObject())
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return false; // TODO: report type error
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JS::RootedObject obj(cx, &v.toObject());
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JS::RootedValue p(cx);
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if (!JS_GetProperty(cx, obj, "x", &p)) return false; // TODO: report type errors
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if (!FromJSVal(cx, p, out.X)) return false;
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if (!JS_GetProperty(cx, obj, "y", &p)) return false;
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if (!FromJSVal(cx, p, out.Y)) return false;
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return true;
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}
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template<> void ScriptInterface::ToJSVal<CFixedVector2D>(JSContext* cx, JS::MutableHandleValue ret, const CFixedVector2D& val)
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{
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JSAutoRequest rq(cx);
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// apply the Vector2D prototype to the return value
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ScriptInterface::CxPrivate* pCxPrivate = ScriptInterface::GetScriptInterfaceAndCBData(cx);
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JS::RootedObject proto(cx, &pCxPrivate->pScriptInterface->GetCachedValue(ScriptInterface::CACHE_VECTOR2DPROTO).toObject());
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JS::RootedObject obj(cx, JS_NewObject(cx, nullptr, proto, JS::NullPtr()));
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if (!obj)
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{
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ret.setUndefined();
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return;
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}
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JS::RootedValue x(cx);
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JS::RootedValue y(cx);
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ToJSVal(cx, &x, val.X);
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ToJSVal(cx, &y, val.Y);
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JS_SetProperty(cx, obj, "x", x);
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JS_SetProperty(cx, obj, "y", y);
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ret.setObject(*obj);
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}
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template<> void ScriptInterface::ToJSVal<Grid<u8> >(JSContext* cx, JS::MutableHandleValue ret, const Grid<u8>& val)
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{
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JSAutoRequest rq(cx);
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u32 length = (u32)(val.m_W * val.m_H);
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u32 nbytes = (u32)(length * sizeof(u8));
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JS::RootedObject objArr(cx, JS_NewUint8Array(cx, length));
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memcpy((void*)JS_GetUint8ArrayData(objArr), val.m_Data, nbytes);
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JS::RootedValue data(cx, JS::ObjectValue(*objArr));
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JS::RootedValue w(cx);
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JS::RootedValue h(cx);
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ScriptInterface::ToJSVal(cx, &w, val.m_W);
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ScriptInterface::ToJSVal(cx, &h, val.m_H);
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JS::RootedObject obj(cx, JS_NewObject(cx, nullptr, JS::NullPtr(), JS::NullPtr()));
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JS_SetProperty(cx, obj, "width", w);
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JS_SetProperty(cx, obj, "height", h);
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JS_SetProperty(cx, obj, "data", data);
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ret.setObject(*obj);
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}
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template<> void ScriptInterface::ToJSVal<Grid<u16> >(JSContext* cx, JS::MutableHandleValue ret, const Grid<u16>& val)
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{
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JSAutoRequest rq(cx);
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u32 length = (u32)(val.m_W * val.m_H);
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u32 nbytes = (u32)(length * sizeof(u16));
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JS::RootedObject objArr(cx, JS_NewUint16Array(cx, length));
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memcpy((void*)JS_GetUint16ArrayData(objArr), val.m_Data, nbytes);
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JS::RootedValue data(cx, JS::ObjectValue(*objArr));
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JS::RootedValue w(cx);
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JS::RootedValue h(cx);
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ScriptInterface::ToJSVal(cx, &w, val.m_W);
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ScriptInterface::ToJSVal(cx, &h, val.m_H);
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JS::RootedObject obj(cx, JS_NewObject(cx, nullptr, JS::NullPtr(), JS::NullPtr()));
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JS_SetProperty(cx, obj, "width", w);
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JS_SetProperty(cx, obj, "height", h);
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JS_SetProperty(cx, obj, "data", data);
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ret.setObject(*obj);
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}
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