Ykkrosh
609f1643d5
Cast to smaller integer types explicitly. Generally avoid platform-dependent types (size_t) in simulation code. Use float versions of math.h functions, not double. This was SVN commit r10017.
239 lines
6.7 KiB
C++
239 lines
6.7 KiB
C++
/* Copyright (C) 2011 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<> jsval ScriptInterface::ToJSVal<IComponent*>(JSContext* cx, IComponent* const& val)
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{
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if (val == NULL)
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return JSVAL_NULL;
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// If this is a scripted component, just return the JS object directly
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jsval instance = val->GetJSInstance();
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if (!JSVAL_IS_NULL(instance))
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return instance;
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// Otherwise we need to construct a wrapper object
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// (TODO: cache wrapper objects?)
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JSClass* cls = val->GetJSClass();
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if (!cls)
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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(L"IComponent does not have a scriptable interface");
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return JSVAL_VOID;
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}
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JSObject* obj = JS_NewObject(cx, cls, NULL, NULL);
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if (!obj)
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{
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LOGERROR(L"Failed to construct IComponent script object");
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return JSVAL_VOID;
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}
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JS_SetPrivate(cx, obj, static_cast<void*>(val));
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return OBJECT_TO_JSVAL(obj);
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}
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template<> jsval ScriptInterface::ToJSVal<CParamNode>(JSContext* cx, CParamNode const& val)
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{
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jsval rval = val.ToJSVal(cx, true);
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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 (JSVAL_IS_OBJECT(rval))
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JS_DeepFreezeObject(cx, JSVAL_TO_OBJECT(rval));
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return rval;
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}
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template<> jsval ScriptInterface::ToJSVal<const CParamNode*>(JSContext* cx, const CParamNode* const& val)
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{
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if (val)
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return ToJSVal(cx, *val);
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else
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return JSVAL_VOID;
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}
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template<> bool ScriptInterface::FromJSVal<CColor>(JSContext* cx, jsval v, CColor& out)
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{
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if (!JSVAL_IS_OBJECT(v))
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FAIL("jsval not an object");
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JSObject* obj = JSVAL_TO_OBJECT(v);
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jsval r, g, b, a;
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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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// TODO: this probably has GC bugs if a getter returns an unrooted value
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return true;
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}
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template<> jsval ScriptInterface::ToJSVal<CColor>(JSContext* cx, CColor const& val)
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{
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JSObject* obj = JS_NewObject(cx, NULL, NULL, NULL);
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if (!obj)
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return JSVAL_VOID;
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jsval r = ToJSVal(cx, val.r);
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jsval g = ToJSVal(cx, val.g);
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jsval b = ToJSVal(cx, val.b);
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jsval a = ToJSVal(cx, 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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return OBJECT_TO_JSVAL(obj);
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}
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template<> bool ScriptInterface::FromJSVal<fixed>(JSContext* cx, jsval v, fixed& out)
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{
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jsdouble ret;
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if (!JS_ValueToNumber(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<> jsval ScriptInterface::ToJSVal<fixed>(JSContext* cx, const fixed& val)
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{
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jsval rval = JSVAL_VOID;
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JS_NewNumberValue(cx, val.ToDouble(), &rval); // ignore return value
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return rval;
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}
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template<> bool ScriptInterface::FromJSVal<CFixedVector3D>(JSContext* cx, jsval v, CFixedVector3D& out)
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{
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if (!JSVAL_IS_OBJECT(v))
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return false; // TODO: report type error
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JSObject* obj = JSVAL_TO_OBJECT(v);
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jsval p;
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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<> jsval ScriptInterface::ToJSVal<CFixedVector3D>(JSContext* cx, const CFixedVector3D& val)
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{
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JSObject* obj = JS_NewObject(cx, NULL, NULL, NULL);
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if (!obj)
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return JSVAL_VOID;
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jsval x = ToJSVal(cx, val.X);
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jsval y = ToJSVal(cx, val.Y);
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jsval z = ToJSVal(cx, 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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return OBJECT_TO_JSVAL(obj);
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}
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template<> bool ScriptInterface::FromJSVal<CFixedVector2D>(JSContext* cx, jsval v, CFixedVector2D& out)
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{
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if (!JSVAL_IS_OBJECT(v))
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return false; // TODO: report type error
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JSObject* obj = JSVAL_TO_OBJECT(v);
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jsval p;
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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<> jsval ScriptInterface::ToJSVal<CFixedVector2D>(JSContext* cx, const CFixedVector2D& val)
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{
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JSObject* obj = JS_NewObject(cx, NULL, NULL, NULL);
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if (!obj)
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return JSVAL_VOID;
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jsval x = ToJSVal(cx, val.X);
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jsval y = ToJSVal(cx, 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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return OBJECT_TO_JSVAL(obj);
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}
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template<> jsval ScriptInterface::ToJSVal<Grid<u16> >(JSContext* cx, const Grid<u16>& val)
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{
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JSObject* obj = JS_NewObject(cx, NULL, NULL, NULL);
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if (!obj)
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return JSVAL_VOID;
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jsuint len = val.m_W * val.m_H;
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JSObject *darray = js_CreateTypedArray(cx, js::TypedArray::TYPE_UINT16, len);
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if (!darray)
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return JSVAL_VOID;
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js::TypedArray *tdest = js::TypedArray::fromJSObject(darray);
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ENSURE(tdest->byteLength == len*sizeof(u16));
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memcpy(tdest->data, val.m_Data, tdest->byteLength);
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jsval w = ToJSVal(cx, val.m_W);
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jsval h = ToJSVal(cx, val.m_H);
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jsval data = OBJECT_TO_JSVAL(darray);
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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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return OBJECT_TO_JSVAL(obj);
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}
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