mirror of
https://port.numenaute.org/aleajactaest/khanat-opennel-code.git
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308 lines
9.1 KiB
C++
308 lines
9.1 KiB
C++
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// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program 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 Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "stdpch.h"
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#include "ctrl_polygon.h"
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#include "view_renderer.h"
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#include "interface_manager.h"
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//
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#include "nel/misc/vector_2f.h"
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using namespace NLMISC;
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//*********************************************************************************
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CCtrlPolygon::CCtrlPolygon() : CCtrlBase(TCtorParam())
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{
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// Construct
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_Color = CRGBA::White;
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//_Matrix = CMatrix::Identity;
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_Valid = true;
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}
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//*********************************************************************************
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void CCtrlPolygon::updateBoudingRect()
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{
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H_AUTO(Rz_CCtrlPolygon_updateBoudingRect)
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if (_Poly.Vertices.empty())
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{
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setX(0);
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setY(0);
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setW(0);
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setH(0);
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return;
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}
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//
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sint32 xmin = INT_MAX;
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sint32 ymin = INT_MAX;
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sint32 xmax = INT_MIN;
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sint32 ymax = INT_MIN;
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uint numVerts = _Poly.Vertices.size();
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_XFormPoly.Vertices.resize(numVerts);
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for(uint k = 0; k < numVerts; ++k)
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{
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CVector2f &finalPos = _XFormPoly.Vertices[k];
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//finalPos = _Matrix * _Poly.Vertices[k];
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computeScaledVertex(finalPos, CVector2f(_Poly.Vertices[k].x, _Poly.Vertices[k].y));
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xmin = std::min(xmin, (sint32) floorf(finalPos.x));
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xmax = std::max(xmax, (sint32) ceilf(finalPos.x));
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ymin = std::min(ymin, (sint32) floorf(finalPos.y));
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ymax = std::max(ymax, (sint32) ceilf(finalPos.y));
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}
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setX(xmin);
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setY(ymin);
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setW(xmax - xmin);
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setH(ymax - ymin);
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}
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//*********************************************************************************
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bool CCtrlPolygon::contains(const CVector2f &pos) const
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{
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H_AUTO(Rz_CCtrlPolygon_contains)
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if (!_Valid) return false;
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return _XFormPoly.contains(pos, false);
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}
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//*********************************************************************************
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void CCtrlPolygon::setVertices(const std::vector<NLMISC::CVector> &vertices)
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{
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H_AUTO(Rz_CCtrlPolygon_setVertices)
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if (vertices.size() == _Poly.Vertices.size() &&
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std::equal(vertices.begin(), vertices.end(), _Poly.Vertices.begin())) return; // remains unchanged
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//TTicks startTime = CTime::getPerformanceTime();
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_Poly.Vertices = vertices;
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_Tris.clear();
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std::list<CPolygon> polys;
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bool splitDone = _Poly.toConvexPolygons(polys, NLMISC::CMatrix::Identity);
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if (!splitDone)
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{
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polys.clear();
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// maybe wrong orientation
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std::reverse(_Poly.Vertices.begin(), _Poly.Vertices.end());
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splitDone = _Poly.toConvexPolygons(polys, NLMISC::CMatrix::Identity);
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std::reverse(_Poly.Vertices.begin(), _Poly.Vertices.end());
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}
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_Tris.clear();
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if (splitDone)
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{
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for(std::list<CPolygon>::iterator it = polys.begin(); it != polys.end(); ++it)
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{
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it->toTriFan(_Tris);
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}
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}
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_Touched = true;
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updateBoudingRect();
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_Valid = splitDone;
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//TTicks endTime = CTime::getPerformanceTime();
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//nlinfo("%d ms for CCtrlPolygon::setVertices", (int) (1000 * CTime::ticksToSecond(endTime - startTime)));
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}
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static inline bool totallyInside(const CVector &minCorner, const CVector &maxCorner, sint32 cx, sint32 cy, sint32 cw, sint32 ch)
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{
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return (sint32) maxCorner.x < (cx + cw) &&
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(sint32) minCorner.x >= cx &&
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(sint32) maxCorner.y < (cy + ch) &&
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(sint32) minCorner.y >= cy;
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}
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static inline bool totallyOutside(const CVector &minCorner, const CVector &maxCorner, sint32 cx, sint32 cy, sint32 cw, sint32 ch)
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{
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return (sint32) minCorner.x >= (cx + cw) ||
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(sint32) maxCorner.x < cx ||
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(sint32) minCorner.y >= (cy + ch) ||
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(sint32) maxCorner.y < cy;
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}
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//*********************************************************************************
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/*void CCtrlPolygon::setMatrix(const NLMISC::CMatrix &mat)
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{
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const float *lhs = mat.get();
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const float *rhs = _Matrix.get();
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if (std::equal(lhs, lhs + 16, rhs)) return; // unmodified...
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_Matrix = mat;
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updateBoudingRect();
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_Touched = true;
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}*/
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//*********************************************************************************
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void CCtrlPolygon::draw()
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{
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H_AUTO(Rz_CCtrlPolygon_draw)
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if (_Tris.empty()) return;
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if (!_Parent) return;
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CInterfaceManager *im = CInterfaceManager::getInstance();
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CViewRenderer &vr = im->getViewRenderer();
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if (_Touched)
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{
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_RealTris.clear();
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uint numTris = _Tris.size();
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sint32 cornerX, cornerY;
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static std::vector<NLMISC::CTriangle> winTris;
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winTris.resize(numTris);
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_Parent->getCorner(cornerX, cornerY, _ParentPosRef);
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/*CMatrix m = _Matrix;
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m.setPos(m.getPos() + CVector((float) cornerX, (float) cornerY, 0.f));*/
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for(uint k = 0; k < numTris; ++k)
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{
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/*winTris[k].V0 = m * _Tris[k].V0;
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winTris[k].V1 = m * _Tris[k].V1;
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winTris[k].V2 = m * _Tris[k].V2;*/
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CVector2f result;
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computeScaledVertex(result, _Tris[k].V0);
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winTris[k].V0.set(result.x + cornerX, result.y + cornerY, 0.f);
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computeScaledVertex(result, _Tris[k].V1);
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winTris[k].V1.set(result.x + cornerX, result.y + cornerY, 0.f);
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computeScaledVertex(result, _Tris[k].V2);
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winTris[k].V2.set(result.x + cornerX, result.y + cornerY, 0.f);
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}
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// recompute & reclip poly
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_RealTris.clear();
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sint32 cx, cy, cw, ch;
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vr.getClipWindow(cx, cy, cw, ch);
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// per tri clip
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NLMISC::CVector minCorner;
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NLMISC::CVector maxCorner;
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for(uint k = 0; k < numTris; ++k)
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{
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winTris[k].getMinCorner(minCorner);
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winTris[k].getMaxCorner(maxCorner);
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if (totallyOutside(minCorner, maxCorner, cx, cy, cw, ch)) continue;
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if (totallyInside(minCorner, maxCorner, cx, cy, cw, ch))
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{
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_RealTris.push_back(winTris[k]);
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}
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else
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{
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const uint maxNumCorners = 8;
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static CVector outPos0[maxNumCorners];
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static CVector outPos1[maxNumCorners];
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//
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outPos0[0] = winTris[k].V0;
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outPos0[1] = winTris[k].V1;
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outPos0[2] = winTris[k].V2;
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//
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CVector *pPos0 = outPos0;
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CVector *pPos1 = outPos1;
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//
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sint count = 3;
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//
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if ((sint32) minCorner.x < cx)
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{
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// clip left
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CPlane clipper(-1.f, 0.f, 0.f, (float) cx);
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count = clipper.clipPolygonBack(pPos0, pPos1, count);
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std::swap(pPos0, pPos1);
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}
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if ((sint32) maxCorner.x > cx + cw)
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{
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// clip right
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CPlane clipper(1.f, 0.f, 0.f, - (float) (cx + cw));
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count = clipper.clipPolygonBack(pPos0, pPos1, count);
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std::swap(pPos0, pPos1);
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}
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//
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if ((sint32) minCorner.y < cy)
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{
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// clip bottom
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CPlane clipper(0.f, -1.f, 0.f, (float) cy);
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count = clipper.clipPolygonBack(pPos0, pPos1, count);
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std::swap(pPos0, pPos1);
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}
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if ((sint32) maxCorner.y > cy + ch)
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{
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// clip top
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CPlane clipper(0.f, 1.f, 0.f, - (float) (cy + ch));
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count = clipper.clipPolygonBack(pPos0, pPos1, count);
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std::swap(pPos0, pPos1);
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}
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nlassert(count <= 8);
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if (count >= 3)
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{
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for(uint k = 0; k < (uint) (count - 2); ++k)
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{
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_RealTris.push_back(NLMISC::CTriangle(pPos0[0], pPos0[k + 1], pPos0[k + 2]));
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}
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}
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}
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}
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_Touched = false;
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}
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if (_RealTris.empty()) return;
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CRGBA col;
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if(getModulateGlobalColor())
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{
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col.modulateFromColor (_Color, im->getGlobalColorForContent());
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}
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else
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{
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col= _Color;
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col.A = (uint8)(((sint32)col.A*((sint32)im->getGlobalColorForContent().A+1))>>8);
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}
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vr.drawUnclippedTriangles(_RenderLayer, _RealTris, col);
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}
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//*********************************************************************************
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void CCtrlPolygon::updateCoords()
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{
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H_AUTO(Rz_CCtrlPolygon_updateCoords)
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CCtrlBase::updateCoords();
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updateBoudingRect();
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// assume that clipping will have to be done again, real update of triangle will be done at render time
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_Touched = true;
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}
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//*********************************************************************************
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void CCtrlPolygon::setAlpha(sint32 a)
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{
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H_AUTO(Rz_CCtrlPolygon_setAlpha)
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_Color.A = (uint8) a;
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}
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//*********************************************************************************
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bool CCtrlPolygon::handleEvent(const CEventDescriptor &/* event */)
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{
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H_AUTO(Rz_CCtrlPolygon_handleEvent)
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return false;
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}
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//*********************************************************************************
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// TMP TMP
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void CCtrlPolygon::computeScaledVertex(NLMISC::CVector2f &dest, const NLMISC::CVector2f &src)
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{
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H_AUTO(Rz_CCtrlPolygon_computeScaledVertex)
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dest.set(src.x, src.y);
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}
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//*********************************************************************************
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// TMP TMP
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void CCtrlPolygon::touch()
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{
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H_AUTO(Rz_CCtrlPolygon_touch)
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updateBoudingRect();
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_Touched = true;
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}
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