elexis
a84e2e57df
Make that function static, so that it can be used for these functions without slowly having to obtain the ScriptInterface instance using GetScriptInterfaceAndCBData just to get the JSContext again. Remove few redundant conversions for CreateObject arguments. Differential Revision: https://code.wildfiregames.com/D2128 Tested on: gcc 9.1.0, clang 8.0.1, Jenkins Tedious performance testing in: D2128, D2127 This was SVN commit r22894.
344 lines
10 KiB
C++
344 lines
10 KiB
C++
/* Copyright (C) 2019 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/ScriptConversions.h"
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#include "graphics/Color.h"
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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/Shapes.h"
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#include "ps/utf16string.h"
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#include "simulation2/helpers/CinemaPath.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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#define FAIL_VOID(msg) STMT(JS_ReportError(cx, msg); return)
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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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CreateObject(
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cx,
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ret,
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"r", val.r,
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"g", val.g,
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"b", val.b,
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"a", val.a);
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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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ScriptInterface::CxPrivate* pCxPrivate = ScriptInterface::GetScriptInterfaceAndCBData(cx);
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JS::RootedObject global(cx, &pCxPrivate->pScriptInterface->GetGlobalObject().toObject());
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JS::RootedValue valueVector3D(cx);
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if (!JS_GetProperty(cx, global, "Vector3D", &valueVector3D))
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FAIL_VOID("Failed to get Vector3D constructor");
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JS::AutoValueArray<3> args(cx);
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args[0].setNumber(val.X.ToDouble());
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args[1].setNumber(val.Y.ToDouble());
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args[2].setNumber(val.Z.ToDouble());
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if (!JS::Construct(cx, valueVector3D, args, ret))
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FAIL_VOID("Failed to construct Vector3D object");
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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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ScriptInterface::CxPrivate* pCxPrivate = ScriptInterface::GetScriptInterfaceAndCBData(cx);
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JS::RootedObject global(cx, &pCxPrivate->pScriptInterface->GetGlobalObject().toObject());
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JS::RootedValue valueVector2D(cx);
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if (!JS_GetProperty(cx, global, "Vector2D", &valueVector2D))
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FAIL_VOID("Failed to get Vector2D constructor");
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JS::AutoValueArray<2> args(cx);
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args[0].setNumber(val.X.ToDouble());
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args[1].setNumber(val.Y.ToDouble());
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if (!JS::Construct(cx, valueVector2D, args, ret))
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FAIL_VOID("Failed to construct Vector2D object");
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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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// Copy the array data and then remove the no-GC check to allow further changes to the JS data
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{
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JS::AutoCheckCannotGC nogc;
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bool sharedMemory;
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memcpy((void*)JS_GetUint8ArrayData(objArr, &sharedMemory, nogc), val.m_Data, nbytes);
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}
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JS::RootedValue data(cx, JS::ObjectValue(*objArr));
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CreateObject(
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cx,
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ret,
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"width", val.m_W,
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"height", val.m_H,
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"data", data);
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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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// Copy the array data and then remove the no-GC check to allow further changes to the JS data
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{
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JS::AutoCheckCannotGC nogc;
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bool sharedMemory;
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memcpy((void*)JS_GetUint16ArrayData(objArr, &sharedMemory, nogc), val.m_Data, nbytes);
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}
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JS::RootedValue data(cx, JS::ObjectValue(*objArr));
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CreateObject(
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cx,
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ret,
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"width", val.m_W,
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"height", val.m_H,
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"data", data);
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}
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template<> bool ScriptInterface::FromJSVal<TNSpline>(JSContext* cx, JS::HandleValue v, TNSpline& out)
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{
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if (!v.isObject())
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FAIL("Argument must be an object");
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JSAutoRequest rq(cx);
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JS::RootedObject obj(cx, &v.toObject());
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bool isArray;
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if (!JS_IsArrayObject(cx, obj, &isArray) || !isArray)
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FAIL("Argument must be an array");
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u32 numberOfNodes = 0;
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if (!JS_GetArrayLength(cx, obj, &numberOfNodes))
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FAIL("Failed to get array length");
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for (u32 i = 0; i < numberOfNodes; ++i)
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{
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JS::RootedValue node(cx);
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if (!JS_GetElement(cx, obj, i, &node))
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FAIL("Failed to read array element");
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fixed deltaTime;
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if (!FromJSProperty(cx, node, "deltaTime", deltaTime))
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FAIL("Failed to read Spline.deltaTime property");
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CFixedVector3D position;
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if (!FromJSProperty(cx, node, "position", position))
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FAIL("Failed to read Spline.position property");
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out.AddNode(position, CFixedVector3D(), deltaTime);
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}
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if (out.GetAllNodes().empty())
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FAIL("Spline must contain at least one node");
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return true;
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}
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template<> bool ScriptInterface::FromJSVal<CCinemaPath>(JSContext* cx, JS::HandleValue v, CCinemaPath& out)
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{
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if (!v.isObject())
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FAIL("Argument must be an object");
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JSAutoRequest rq(cx);
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JS::RootedObject obj(cx, &v.toObject());
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CCinemaData pathData;
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TNSpline positionSpline, targetSpline;
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if (!FromJSProperty(cx, v, "name", pathData.m_Name))
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FAIL("Failed to get CCinemaPath.name property");
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if (!FromJSProperty(cx, v, "orientation", pathData.m_Orientation))
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FAIL("Failed to get CCinemaPath.orientation property");
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if (!FromJSProperty(cx, v, "positionNodes", positionSpline))
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FAIL("Failed to get CCinemaPath.positionNodes property");
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if (pathData.m_Orientation == L"target" && !FromJSProperty(cx, v, "targetNodes", targetSpline))
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FAIL("Failed to get CCinemaPath.targetNodes property");
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// Other properties are not necessary to be defined
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if (!FromJSProperty(cx, v, "timescale", pathData.m_Timescale))
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pathData.m_Timescale = fixed::FromInt(1);
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if (!FromJSProperty(cx, v, "mode", pathData.m_Mode))
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pathData.m_Mode = L"ease_inout";
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if (!FromJSProperty(cx, v, "style", pathData.m_Style))
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pathData.m_Style = L"default";
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out = CCinemaPath(pathData, positionSpline, targetSpline);
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return true;
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}
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// define vectors
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JSVAL_VECTOR(CFixedVector2D)
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#undef FAIL
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#undef FAIL_VOID
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