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597 lines
18 KiB
C++
597 lines
18 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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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 "std3d.h"
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#include "nel/3d/ps_fan_light.h"
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#include "nel/3d/ps_macro.h"
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#include "nel/3d/ps_attrib_maker.h"
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#include "nel/3d/ps_iterator.h"
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#include "nel/3d/particle_system.h"
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#include "nel/3d/driver.h"
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namespace NL3D
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{
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//////////////////////////////
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// fan light implementation //
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//////////////////////////////
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uint8 CPSFanLight::_RandomPhaseTab[32][128];
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bool CPSFanLight::_RandomPhaseTabInitialized = false;
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CPSFanLight::TVBMap CPSFanLight::_VBMap; // fanlight, no texture
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CPSFanLight::TVBMap CPSFanLight::_TexVBMap; // fanlight, textured
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CPSFanLight::TVBMap CPSFanLight::_ColoredVBMap; // fanlight, no texture, varying color
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CPSFanLight::TVBMap CPSFanLight::_ColoredTexVBMap; // fanlight, textured, varying color
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CPSFanLight::TIBMap CPSFanLight::_IBMap;
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static const uint FanLightBufSize = 128; // the size of a buffer of particle to deal with at a time
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static const uint NumVertsInBuffer = 4 * FanLightBufSize;
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///====================================================================================
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/** Well, we could have put a method template in CPSFanLight, but some compilers
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* want the definition of the methods in the header, and some compilers
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* don't want friend with function template, so we use a static method template of a friend class instead,
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* which gives us the same result :)
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*/
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class CPSFanLightHelper
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{
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public:
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template <class T, class U>
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static void drawFanLight(T posIt, U timeIt, CPSFanLight &f, uint size, uint32 srcStep)
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{
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NL_PS_FUNC(CPSFanLightHelper_drawFanLight)
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PARTICLES_CHECK_MEM;
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nlassert(f._RandomPhaseTabInitialized);
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//
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f.setupDriverModelMatrix();
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const CVector I = f.computeI();
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const CVector K = f.computeK();
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//
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CVertexBuffer *vb;
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CIndexBuffer *ib;
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// get (and build if necessary) the vb and the ib
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f.getVBnIB(vb, ib);
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// tmp
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vb->setPreferredMemory(CVertexBuffer::AGPVolatile, true);
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IDriver *driver = f.getDriver();
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const uint maxNumFanLightToDealWith = std::min(FanLightBufSize, f.getNumFanlightsInVB());
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uint8 *randomPhaseTab = &f._RandomPhaseTab[f._PhaseSmoothness][0];
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f._Owner->incrementNbDrawnParticles(size); // for benchmark purpose
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float pSizes[FanLightBufSize];
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float pAngles[FanLightBufSize];
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T endPosIt;
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sint32 k; // helps to count the fans
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// if so, we need to deal process separatly group of particles
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const uint32 stride = vb->getVertexSize();
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float currentAngle;
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const float angleStep = 256.0f / f._NbFans;
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float *currentSizePt; // it points either the particle constant size, or a size in a table
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float *currentAnglePt; // it points either the particle constant angle, or an angle in a table
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const uint32 currentSizePtIncrement = f._SizeScheme ? 1 : 0; // increment to get the next size for the size pointer. It is 0 if the size is constant
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const uint32 currentAnglePtIncrement = f._Angle2DScheme ? 1 : 0; // increment to get the next angle for the angle pointer. It is 0 if the size is constant
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uint leftToDo = size;
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if (f._ColorScheme)
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{
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// we change the color at each fan light center
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f._ColorScheme->setColorType(driver->getVertexColorFormat());
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}
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do
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{
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uint toProcess = std::min(leftToDo, maxNumFanLightToDealWith);
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vb->setNumVertices(toProcess * f._NbFans * 3);
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{
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CVertexBufferReadWrite vba;
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vb->lock (vba);
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uint8 *ptVect = (uint8 *) vba.getVertexCoordPointer();
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// compute individual colors if needed
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if (f._ColorScheme)
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{
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// we change the color at each fan light center
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f._ColorScheme->make(f._Owner, size - leftToDo, vba.getColorPointer(), vb->getVertexSize() * (f._NbFans + 2), toProcess, false, srcStep);
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}
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if (f._SizeScheme)
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{
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currentSizePt = (float *) (f._SizeScheme->make(f._Owner, size - leftToDo, pSizes, sizeof(float), toProcess, true, srcStep));
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currentSizePt = pSizes;
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}
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else
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{
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currentSizePt = &f._ParticleSize;
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}
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if (f._Angle2DScheme)
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{
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currentAnglePt = (float *) (f._Angle2DScheme->make(f._Owner, size - leftToDo, pAngles, sizeof(float), toProcess, true, srcStep));
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}
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else
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{
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currentAnglePt = &f._Angle2D;
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}
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//
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float fSize, firstSize, sizeStepBase=0.0, sizeStep;
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if (f._PhaseSmoothness)
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{
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sizeStepBase = 1.f / f._PhaseSmoothness;
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}
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endPosIt = posIt + toProcess;
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for (;posIt != endPosIt; ++posIt, ++timeIt)
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{
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CHECK_VERTEX_BUFFER(*vb, ptVect);
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*(CVector *) ptVect = *posIt;
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// the start angle
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currentAngle = *currentAnglePt;
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const uint8 phaseAdd = (uint8) (f._PhaseSpeed * (*timeIt));
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ptVect += stride;
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const float fanSize = *currentSizePt * 0.5f;
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const float moveIntensity = f._MoveIntensity * fanSize;
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// compute radius & vect for first fan
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firstSize = fanSize + (moveIntensity * CPSUtil::getCos(randomPhaseTab[0] + phaseAdd));
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*(CVector *) ptVect = (*posIt) + I * firstSize * (CPSUtil::getCos((sint32) currentAngle))
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+ K * firstSize * (CPSUtil::getSin((sint32) currentAngle));
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currentAngle += angleStep;
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ptVect += stride;
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fSize = firstSize;
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// computes other fans
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const sint32 upperBound = (sint32) (f._NbFans - f._PhaseSmoothness - 1);
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for (k = 1; k <= upperBound; ++k)
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{
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fSize = fanSize + (moveIntensity * CPSUtil::getCos(randomPhaseTab[k] + phaseAdd));
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*(CVector *) ptVect = (*posIt) + I * fSize * (CPSUtil::getCos((sint32) currentAngle))
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+ K * fSize * (CPSUtil::getSin((sint32) currentAngle));
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currentAngle += angleStep;
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ptVect += stride;
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}
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// interpolate radius, so that the fanlight loops correctly
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sizeStep = sizeStepBase * (firstSize - fSize);
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for (; k <= (sint32) (f._NbFans - 1); ++k)
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{
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*(CVector *) ptVect = (*posIt) + I * fSize * (CPSUtil::getCos((sint32) currentAngle))
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+ K * fSize * (CPSUtil::getSin((sint32) currentAngle));
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currentAngle += angleStep;
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ptVect += stride;
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fSize += sizeStep;
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}
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// last fan
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*(CVector *) ptVect = (*posIt) + I * firstSize * (CPSUtil::getCos((sint32) *currentAnglePt))
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+ K * firstSize * (CPSUtil::getSin((sint32) *currentAnglePt));
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ptVect += stride;
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currentSizePt += currentSizePtIncrement;
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currentAnglePt += currentAnglePtIncrement;
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}
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}
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driver->activeIndexBuffer(*ib);
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driver->activeVertexBuffer(*vb);
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driver->renderTriangles(f._Mat, 0, toProcess * f._NbFans);
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leftToDo -= toProcess;
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}
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while (leftToDo != 0);
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PARTICLES_CHECK_MEM;
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}
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};
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///====================================================================================
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// this blur a tab of bytes once
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static void BlurBytesTab(const uint8 *src, uint8 *dest, uint size)
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{
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NL_PS_FUNC(BlurBytesTab)
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std::vector<uint8> b(src, src + size);
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for (sint k = 1 ; k < (sint) (size - 1); ++k)
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{
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dest[k] = (uint8) (((uint16) b[k - 1] + (uint16) b[k + 1])>>1);
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}
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}
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///====================================================================================
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void CPSFanLight::initFanLightPrecalc(void)
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{
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NL_PS_FUNC(CPSFanLight_initFanLightPrecalc)
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// build several random tab, and linearly interpolate between l values
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float currPhase, nextPhase, phaseStep;
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for (uint l = 0; l < 32 ; l++)
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{
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nextPhase = (float) (uint8) (rand()&0xFF);
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uint32 k = 0;
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while (k < 128)
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{
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currPhase = nextPhase;
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nextPhase = (float) (uint8) (rand()&0xFF);
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phaseStep = (nextPhase - currPhase) / (l + 1);
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for (uint32 m = 0; m <= l; ++m)
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{
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_RandomPhaseTab[l][k] = (uint8) currPhase;
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currPhase += phaseStep;
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++k;
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if (k >= 128) break;
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}
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}
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for (uint m = 0; m < 2 * l; ++m)
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BlurBytesTab(&_RandomPhaseTab[l][0], &_RandomPhaseTab[l][0], 128);
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}
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//#ifdef NL_DEBUG
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_RandomPhaseTabInitialized = true;
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//#endif
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}
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///====================================================================================
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uint32 CPSFanLight::getNumWantedTris() const
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{
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NL_PS_FUNC(CPSFanLight_getNumWantedTris)
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nlassert(_Owner);
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//return _Owner->getMaxSize() * _NbFans;
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return _Owner->getSize() * _NbFans;
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}
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///====================================================================================
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bool CPSFanLight::hasTransparentFaces(void)
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{
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NL_PS_FUNC(CPSFanLight_hasTransparentFaces)
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return getBlendingMode() != CPSMaterial::alphaTest ;
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}
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///====================================================================================
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bool CPSFanLight::hasOpaqueFaces(void)
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{
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NL_PS_FUNC(CPSFanLight_hasOpaqueFaces)
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return !hasTransparentFaces();
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}
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///====================================================================================
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void CPSFanLight::newElement(const CPSEmitterInfo &info)
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{
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NL_PS_FUNC(CPSFanLight_newElement)
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newColorElement(info);
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newSizeElement(info);
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newAngle2DElement(info);
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}
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///====================================================================================
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void CPSFanLight::deleteElement(uint32 index)
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{
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NL_PS_FUNC(CPSFanLight_deleteElement)
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deleteColorElement(index);
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deleteSizeElement(index);
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deleteAngle2DElement(index);
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}
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///====================================================================================
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void CPSFanLight::setPhaseSpeed(float multiplier)
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{
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NL_PS_FUNC(CPSFanLight_setPhaseSpeed)
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_PhaseSpeed = 256.0f * multiplier;
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}
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///====================================================================================
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inline void CPSFanLight::setupMaterial()
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{
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NL_PS_FUNC(CPSFanLight_setupMaterial)
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CParticleSystem &ps = *(_Owner->getOwner());
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/// update material color
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if (_Tex == NULL)
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{
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forceTexturedMaterialStages(1);
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SetupModulatedStage(_Mat, 0, CMaterial::Diffuse, CMaterial::Constant);
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}
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else
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{
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_Mat.setTexture(0, _Tex);
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forceTexturedMaterialStages(2);
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SetupModulatedStage(_Mat, 0, CMaterial::Texture, CMaterial::Constant);
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SetupModulatedStage(_Mat, 1, CMaterial::Diffuse, CMaterial::Previous);
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}
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// always setup global colors
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if (_ColorScheme)
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{
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if (ps.getForceGlobalColorLightingFlag() || usesGlobalColorLighting())
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{
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_Mat.texConstantColor(0, ps.getGlobalColorLighted());
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}
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else
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{
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_Mat.texConstantColor(0, ps.getGlobalColor());
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}
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}
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else
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{
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NLMISC::CRGBA col;
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if (ps.getForceGlobalColorLightingFlag() || usesGlobalColorLighting())
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{
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col.modulateFromColor(ps.getGlobalColorLighted(), _Color);
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}
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else if (ps.getColorAttenuationScheme() != NULL || ps.isUserColorUsed())
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{
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col.modulateFromColor(ps.getGlobalColor(), _Color);
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}
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else
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{
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col = _Color;
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}
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_Mat.texConstantColor(0, col);
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}
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}
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///====================================================================================
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void CPSFanLight::draw(bool opaque)
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{
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// if (!FilterPS[3]) return;
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NL_PS_FUNC(CPSFanLight_draw)
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PARTICLES_CHECK_MEM;
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if (!_Owner->getSize()) return;
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uint32 step;
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uint numToProcess;
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computeSrcStep(step, numToProcess);
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if (!numToProcess) return;
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setupMaterial();
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if (step == (1 << 16))
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{
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CPSFanLightHelper::drawFanLight(_Owner->getPos().begin(),
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_Owner->getTime().begin(),
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*this,
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numToProcess,
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step
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);
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}
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else
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{
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CPSFanLightHelper::drawFanLight(TIteratorVectStep1616(_Owner->getPos().begin(), 0, step),
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TIteratorTimeStep1616(_Owner->getTime().begin(), 0, step),
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*this,
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numToProcess,
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step
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);
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}
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PARTICLES_CHECK_MEM;
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}
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///====================================================================================
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void CPSFanLight::serial(NLMISC::IStream &f) throw(NLMISC::EStream)
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{
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NL_PS_FUNC(CPSFanLight_serial)
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sint ver = f.serialVersion(2);
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CPSParticle::serial(f);
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CPSColoredParticle::serialColorScheme(f);
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CPSSizedParticle::serialSizeScheme(f);
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CPSRotated2DParticle::serialAngle2DScheme(f);
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f.serial(_NbFans);
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serialMaterial(f);
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if (ver > 1)
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{
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f.serial(_PhaseSmoothness, _MoveIntensity);
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ITexture *tex = _Tex;
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f.serialPolyPtr(tex);
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if (f.isReading()) _Tex = tex ;
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}
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if (f.isReading())
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{
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init();
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}
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}
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///====================================================================================
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bool CPSFanLight::completeBBox(NLMISC::CAABBox &box) const
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{
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NL_PS_FUNC(CPSFanLight_completeBBox)
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// TODO
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return false;
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}
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///====================================================================================
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CPSFanLight::CPSFanLight(uint32 nbFans) : _NbFans(nbFans),
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_PhaseSmoothness(0),
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_MoveIntensity(1.5f),
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_Tex(NULL),
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_PhaseSpeed(256)
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{
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NL_PS_FUNC(CPSFanLight_CPSFanLight)
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nlassert(nbFans >= 3);
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init();
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if (CParticleSystem::getSerializeIdentifierFlag()) _Name = std::string("FanLight");
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}
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///====================================================================================
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CPSFanLight::~CPSFanLight()
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{
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NL_PS_FUNC(CPSFanLight_CPSFanLight)
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}
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///====================================================================================
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void CPSFanLight::setNbFans(uint32 nbFans)
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{
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NL_PS_FUNC(CPSFanLight_setNbFans)
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_NbFans = nbFans;
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resize(_Owner->getMaxSize());
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//notifyOwnerMaxNumFacesChanged();
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}
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///====================================================================================
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void CPSFanLight::resize(uint32 size)
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{
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NL_PS_FUNC(CPSFanLight_resize)
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nlassert(size < (1 << 16));
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resizeColor(size);
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resizeAngle2D(size);
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resizeSize(size);
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}
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///====================================================================================
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void CPSFanLight::init(void)
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{
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NL_PS_FUNC(CPSFanLight_init)
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_Mat.setLighting(false);
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_Mat.setZFunc(CMaterial::less);
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_Mat.setDoubleSided(true);
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_Mat.setColor(NLMISC::CRGBA::White);
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updateMatAndVbForColor();
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}
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///====================================================================================
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void CPSFanLight::updateMatAndVbForColor(void)
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{
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NL_PS_FUNC(CPSFanLight_updateMatAndVbForColor)
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//touch();
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}
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///====================================================================================
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void CPSFanLight::getVBnIB(CVertexBuffer *&retVb, CIndexBuffer *&retIb)
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{
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NL_PS_FUNC(CPSFanLight_getVBnIB)
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TVBMap &vbMap = _ColorScheme ? (_Tex == NULL ? _ColoredVBMap : _ColoredTexVBMap)
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: (_Tex == NULL ? _VBMap : _TexVBMap);
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#ifdef NL_NAMED_INDEX_BUFFER
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const char *ibName = _ColorScheme ? (_Tex == NULL ? "_ColoredVBMap" : "_ColoredTexVBMap")
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: (_Tex == NULL ? "_VBMap" : "_TexVBMap");
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#endif
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TVBMap::iterator vbIt = vbMap.find(_NbFans);
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if (vbIt != vbMap.end())
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{
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retVb = &(vbIt->second);
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TIBMap::iterator pbIt = _IBMap.find(_NbFans);
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nlassert(pbIt != _IBMap.end());
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#ifdef NL_NAMED_INDEX_BUFFER
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if (pbIt->second.getName().empty()) NL_SET_IB_NAME(pbIt->second, ibName);
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#endif
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retIb = &(pbIt->second);
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}
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else // we need to create the vb
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{
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// create an entry (we setup the primitive block at the same time, this could be avoided, but doesn't make much difference)
|
|
CVertexBuffer &vb = vbMap[_NbFans]; // create a vb
|
|
CIndexBuffer &ib = _IBMap[_NbFans]; // eventually create a pb
|
|
const uint32 size = getNumFanlightsInVB();
|
|
vb.setVertexFormat(CVertexBuffer::PositionFlag |
|
|
CVertexBuffer::PrimaryColorFlag |
|
|
(_Tex != NULL ? CVertexBuffer::TexCoord0Flag : 0)
|
|
);
|
|
vb.setNumVertices(size * (2 + _NbFans));
|
|
vb.setPreferredMemory(CVertexBuffer::AGPVolatile, true); // keep local memory because of interleaved format
|
|
vb.setName("CPSFanLight");
|
|
ib.setFormat(NL_DEFAULT_INDEX_BUFFER_FORMAT);
|
|
ib.setNumIndexes(size * _NbFans * 3);
|
|
// pointer on the current index to fill
|
|
CIndexBufferReadWrite iba;
|
|
ib.lock (iba);
|
|
TIndexType *ptIndex = (TIndexType *) iba.getPtr();
|
|
|
|
CVertexBufferReadWrite vba;
|
|
vb.lock (vba);
|
|
|
|
// index of the first vertex of the current fanFilght
|
|
uint currVertFan = 0;
|
|
|
|
uint l; // the current fan in the current fanlight
|
|
uint k; // the current fan light
|
|
|
|
for (k = 0; k < size; ++k)
|
|
{
|
|
for (l = 0; l < _NbFans; ++l)
|
|
{
|
|
*ptIndex++ = (TIndexType) currVertFan;
|
|
*ptIndex++ = (TIndexType) (currVertFan + (l + 1));
|
|
*ptIndex++ = (TIndexType) (currVertFan + (l + 2));
|
|
}
|
|
currVertFan += 2 + _NbFans;
|
|
}
|
|
|
|
for (k = 0; k < size; ++k)
|
|
{
|
|
if (_Tex)
|
|
{
|
|
vba.setTexCoord(k * (_NbFans + 2), 0, NLMISC::CUV(0, 0));
|
|
}
|
|
if (!_ColorScheme)
|
|
{
|
|
vba.setColor(k * (_NbFans + 2), CRGBA::White);
|
|
}
|
|
if (!_Tex)
|
|
{
|
|
for(l = 1; l <= _NbFans + 1; ++l)
|
|
{
|
|
vba.setColor(l + k * (_NbFans + 2), CRGBA(0, 0, 0));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for(l = 1; l <= _NbFans + 1; ++l)
|
|
{
|
|
vba.setColor(l + k * (_NbFans + 2), CRGBA(0, 0, 0));
|
|
vba.setTexCoord(l + k * (_NbFans + 2), 0, NLMISC::CUV((l - 1) / (float) _NbFans, 1));
|
|
}
|
|
}
|
|
}
|
|
|
|
retVb = &vb;
|
|
retIb = &ib;
|
|
}
|
|
}
|
|
|
|
///====================================================================================
|
|
uint CPSFanLight::getNumFanlightsInVB() const
|
|
{
|
|
NL_PS_FUNC(CPSFanLight_getNumFanlightsInVB)
|
|
const uint numRib = NumVertsInBuffer / (2 + _NbFans);
|
|
return std::max(1u, numRib);
|
|
}
|
|
|
|
///====================================================================================
|
|
void CPSFanLight::enumTexs(std::vector<NLMISC::CSmartPtr<ITexture> > &dest, IDriver &drv)
|
|
{
|
|
NL_PS_FUNC(CPSFanLight_enumTexs)
|
|
if (_Tex)
|
|
{
|
|
dest.push_back(_Tex);
|
|
}
|
|
}
|
|
|
|
} // NL3D
|