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EntitiesMP/Common/Particles.cpp: Don't access afStarsPositions[i][3]

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fix out of bounds accesses of that array.
I guess the same will have to be done for Entities/Common/Particles.cpp
This commit is contained in:
Daniel Gibson 2016-04-18 19:37:02 +02:00
parent 80990f2317
commit 93daf905f1
1 changed files with 34 additions and 33 deletions
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67
Sources/EntitiesMP/Common/Particles.cpp
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@ -1589,9 +1589,10 @@ INDEX Particles_Regeneration(CEntity *pen, FLOAT tmStart, FLOAT tmStop, FLOAT fY
vPos2 = Lerp( vSource, vDestination, fT2);
}
UBYTE ubR = (UBYTE) (192+afStarsPositions[iRnd][1]*64);
UBYTE ubG = (UBYTE) (192+afStarsPositions[iRnd][2]*64);
UBYTE ubB = (UBYTE) (192+afStarsPositions[iRnd][3]*64); // FIXME DG: afStarsPositions[i][3] invalid, what's going on here?
// DG: changed indices from 1-3 to 0-2 so they're not out of bounds
UBYTE ubR = (UBYTE) (192+afStarsPositions[iRnd][0]*64);
UBYTE ubG = (UBYTE) (192+afStarsPositions[iRnd][1]*64);
UBYTE ubB = (UBYTE) (192+afStarsPositions[iRnd][2]*64);
UBYTE ubA = (UBYTE) CalculateRatio( fT, 0.0f, 1.0f, 0.4f, 0.01f)*255;
COLOR colLine = RGBToColor( ubR, ubG, ubB) | ubA;
@ -2242,7 +2243,7 @@ void Particles_DustFall(CEntity *pen, FLOAT tmStarted, FLOAT3D vStretch)
FLOAT fRndAppearX = afStarsPositions[iRnd][0]*vStretch(1);
FLOAT fRndSpeedY = (afStarsPositions[iRnd][1]+0.5f)*0.125f*vStretch(2);
FLOAT fRndAppearZ = afStarsPositions[iRnd][2]*vStretch(3);
FLOAT3D vRndDir=FLOAT3D(afStarsPositions[iRnd][1],0,afStarsPositions[iRnd][3]);
FLOAT3D vRndDir=FLOAT3D(afStarsPositions[iRnd][0],0,afStarsPositions[iRnd][2]);
vRndDir.Normalize();
FLOAT fRiseTime=Max(fRatio-0.5f,0.0f);
FLOAT3D vPos=vCenter+vRndDir*fSpeed*3*fStretch+vY*fRiseTime*0.25f;
@ -2374,7 +2375,7 @@ void Particles_LavaErupting(CEntity *pen, FLOAT fStretchAll, FLOAT fSize,
vPos(2) += (fStretchY+(fStretchY*0.25f*afStarsPositions[iRnd1][1]))*fT-fGA/2.0f*fT*fT;
vPos(3) += fRndAppearZ+afStarsPositions[iRnd1][2]*fT*fStretchZ*10;
Particle_RenderSquare( vPos, fSize+afStarsPositions[iRnd2][3]*fSize*0.5f, fRndRotation*300*fT, C_WHITE|CT_OPAQUE);
Particle_RenderSquare( vPos, fSize+afStarsPositions[iRnd2][2]*fSize*0.5f, fRndRotation*300*fT, C_WHITE|CT_OPAQUE);
// all done
Particle_Flush();
@ -3091,7 +3092,7 @@ void Particles_Rain(CEntity *pen, FLOAT fGridSize, INDEX ctGrids, FLOAT fFactor,
for( INDEX iZ=0; iZ<ctGrids; iZ++)
{
INDEX iRndZ = (ULONG(vPos(3)+iZ)) % CT_MAX_PARTICLES_TABLE;
FLOAT fZOrg = vPos(3) + (iZ+afStarsPositions[iRndZ][3])*fGridSize;
FLOAT fZOrg = vPos(3) + (iZ+afStarsPositions[iRndZ][2])*fGridSize;
for( INDEX iX=0; iX<ctGrids; iX++)
{
@ -3200,12 +3201,12 @@ void Particles_Snow(CEntity *pen, FLOAT fGridSize, INDEX ctGrids, FLOAT fFactor,
FLOAT vYStart=vPos(2)+YGRIDS_VISIBLE_ABOVE*YGRID_SIZE+fD;
INDEX iDanceRnd=(iRndXZ+2)%CT_MAX_PARTICLES_TABLE;
FLOAT fDanceAngle=afStarsPositions[iDanceRnd][1]*360.0f;
FLOAT fAmpX=afStarsPositions[iDanceRnd][2]*2.0f;
FLOAT fAmpZ=afStarsPositions[iDanceRnd][3]*2.0f;
FLOAT fX = vPos(1) + (iX+afStarsPositions[iRndXZ][3])*fGridSize+fAmpX*sin(fDanceAngle+fNow*3.0f);
FLOAT fZ = vPos(3) + (iZ+afStarsPositions[iRndXZ][2])*fGridSize+fAmpZ*cos(fDanceAngle+fNow*3.0f);
FLOAT fT0 = afStarsPositions[(INDEX(2+Abs(fX)+Abs(fZ))*262147) % CT_MAX_PARTICLES_TABLE][2];
FLOAT fDanceAngle=afStarsPositions[iDanceRnd][0]*360.0f;
FLOAT fAmpX=afStarsPositions[iDanceRnd][1]*2.0f;
FLOAT fAmpZ=afStarsPositions[iDanceRnd][2]*2.0f;
FLOAT fX = vPos(1) + (iX+afStarsPositions[iRndXZ][2])*fGridSize+fAmpX*sin(fDanceAngle+fNow*3.0f);
FLOAT fZ = vPos(3) + (iZ+afStarsPositions[iRndXZ][1])*fGridSize+fAmpZ*cos(fDanceAngle+fNow*3.0f);
FLOAT fT0 = afStarsPositions[(INDEX(2+Abs(fX)+Abs(fZ))*262147) % CT_MAX_PARTICLES_TABLE][1];
for( INDEX iY=0; iY<(YGRIDS_VISIBLE_ABOVE+YGRIDS_VISIBLE_BELOW); iY++)
{
@ -3618,7 +3619,7 @@ void Particles_BulletSpray(INDEX iRndBase, FLOAT3D vSource, FLOAT3D vGDir, enum
afStarsPositions[ iSpray+iRnd][0]*3.0f* fConeMultiplier,
(afStarsPositions[ iSpray+iRnd][1]+1.0f)*3.0f,
afStarsPositions[ iSpray+iRnd][2]*3.0f* fConeMultiplier);
FLOAT fSpeedRnd = fSpeedStart+afStarsPositions[ iSpray+iRnd*2][3];
FLOAT fSpeedRnd = fSpeedStart+afStarsPositions[ iSpray+iRnd*2][2];
FLOAT3D vPos = vSource + (vDirection+vRandomAngle)*(fT*fSpeedRnd)+vGDir*(fT*fT*fGA);
if( (eptType == EPT_BULLET_WATER) && (vPos(2) < vSource(2)) )
@ -3756,7 +3757,7 @@ void Particles_EmptyShells( CEntity *pen, ShellLaunchData *asldData)
FLOAT fXF = cos( afStarsPositions[iRnd+2][0]*PI);
FLOAT fAmpl = ClampUp( fT+afStarsPositions[iRnd+1][1]+0.5f, 2.0f)/64;
FLOAT fFormulae = fAmpl * sin(afStarsPositions[iRnd][2]+fT*afStarsPositions[iRnd][3]*2);
FLOAT fFormulae = fAmpl * sin(afStarsPositions[iRnd][1]+fT*afStarsPositions[iRnd][2]*2);
FLOAT fColorFactor = 1.0f;
if( fT>fLife/2)
@ -4781,11 +4782,11 @@ void Particles_AfterBurner(CEntity *pen, FLOAT tmSpawn, FLOAT fStretch, INDEX iG
// smoke
FLOAT3D vPosS = *pvPos1;
Particle_SetTexturePart( 512, 512, 1, 0);
FLOAT fAngleS = afStarsPositions[iRnd][2]*360.0f+fT*120.0f*afStarsPositions[iRnd][3];
FLOAT fAngleS = afStarsPositions[iRnd][1]*360.0f+fT*120.0f*afStarsPositions[iRnd][2];
FLOAT fSizeS = (0.5f+aSmoke_sol[iIndex]*2.5f)*fStretch;
FLOAT3D vVelocityS=FLOAT3D(afStarsPositions[iRnd][2],
afStarsPositions[iRnd][3],
afStarsPositions[iRnd][1])*5.0f;
FLOAT3D vVelocityS=FLOAT3D(afStarsPositions[iRnd][1],
afStarsPositions[iRnd][2],
afStarsPositions[iRnd][0])*5.0f;
vPosS=vPosS+vVelocityS*fT+vGDir*fGA/2.0f*(fT*fT)/32.0f;
Particle_RenderSquare( vPosS, fSizeS, fAngleS, ByteSwap(pcolSmoke[iIndex]));
@ -4899,7 +4900,7 @@ void Particles_RocketMotorBurning(CEntity *pen, FLOAT tmSpawn, FLOAT3D vStretch,
INDEX iIndex=(INDEX) (fT*255);
// smoke
Particle_SetTexturePart( 512, 512, 1, 0);
FLOAT fAngleS = afStarsPositions[iRnd][2]*360.0f+fT*120.0f*afStarsPositions[iRnd][3];
FLOAT fAngleS = afStarsPositions[iRnd][1]*360.0f+fT*120.0f*afStarsPositions[iRnd][2];
FLOAT fSizeS = (3.0f+fT*4.5f)*fStretch;
Particle_RenderSquare( vPosS, fSizeS, fAngleS, ByteSwap(pcolSmoke[iIndex]));
@ -4933,7 +4934,7 @@ void Particles_RocketMotorBurning(CEntity *pen, FLOAT tmSpawn, FLOAT3D vStretch,
INDEX iIndex=(INDEX) (fT*255);
// smoke
Particle_SetTexturePart( 512, 512, 1, 0);
FLOAT fAngleS = afStarsPositions[iRnd][2]*360.0f+fT*120.0f*afStarsPositions[iRnd][3];
FLOAT fAngleS = afStarsPositions[iRnd][1]*360.0f+fT*120.0f*afStarsPositions[iRnd][2];
FLOAT fSizeS = (1.5f+aSmoke_sol[iIndex]*2.5f)*fStretch*fFireStretch;
Particle_RenderSquare( vPosS, fSizeS, fAngleS, ByteSwap(pcolSmoke[iIndex]));
@ -5303,7 +5304,7 @@ void Particles_CollectEnergy(CEntity *pen, FLOAT tmStart, FLOAT tmStop)
UBYTE ubR = (UBYTE) (255);//+afStarsPositions[iRnd][1]*64;
UBYTE ubG = (UBYTE) (128+(1.0f-fT)*128);//223+afStarsPositions[iRnd][2]*64;
UBYTE ubB = (UBYTE) (16+afStarsPositions[iRnd][3]*32+(1.0f-fT)*64);
UBYTE ubB = (UBYTE) (16+afStarsPositions[iRnd][2]*32+(1.0f-fT)*64);
UBYTE ubA = (UBYTE) (CalculateRatio( fT, 0.0f, 1.0f, 0.4f, 0.01f)*255);
COLOR colLine = RGBToColor( ubR, ubG, ubB) | ubA;
@ -5339,7 +5340,7 @@ void Particles_CollectEnergy(CEntity *pen, FLOAT tmStart, FLOAT tmStop)
vZ*Cos(fT*360.0f)*fRadius;
UBYTE ubR = (UBYTE) (255);
UBYTE ubG = (UBYTE) (128+(1.0f-fT)*128);
UBYTE ubB = (UBYTE) (16+afStarsPositions[iRnd][3]*32+(1.0f-fT)*64);
UBYTE ubB = (UBYTE) (16+afStarsPositions[iRnd][2]*32+(1.0f-fT)*64);
FLOAT fFader=CalculateRatio( fT, 0.0f, 1.0f, 0.4f, 0.01f);
FLOAT fPulser=(1.0f+(sin((fT*fT)/4.0f)))/2.0f;
UBYTE ubA = (UBYTE) (fFader*fPulser*255);
@ -5404,9 +5405,9 @@ void Particles_SummonerDisappear( CEntity *pen, FLOAT tmStart)
for( INDEX iVtx=0; iVtx<ctVtx; iVtx+=1)
{
INDEX iRnd=iVtx%CT_MAX_PARTICLES_TABLE;
FLOAT fRndPulseOffset=afStarsPositions[iRnd][1];
FLOAT fRndPulseSpeed=afStarsPositions[iRnd][2]*128.0f;
FLOAT fRndSize=afStarsPositions[iRnd][3];
FLOAT fRndPulseOffset=afStarsPositions[iRnd][0];
FLOAT fRndPulseSpeed=afStarsPositions[iRnd][1]*128.0f;
FLOAT fRndSize=afStarsPositions[iRnd][2];
FLOAT fPulser=1.0f-(fRatio*(1.0f+(Sin(fRatio*360.0f*fRndPulseSpeed+fRndPulseOffset*360.0f)))/2.0f);
UBYTE ubColor = UBYTE(CT_OPAQUE*fColorFactor*fPulser);
@ -5720,7 +5721,7 @@ void Particles_LarvaEnergy(CEntity *pen, FLOAT3D vOffset)
UBYTE ubR = (UBYTE) (255);//+afStarsPositions[iRnd][1]*64;
UBYTE ubG = (UBYTE) (128+(1.0f-fT)*128);//223+afStarsPositions[iRnd][2]*64;
UBYTE ubB = (UBYTE) (16+afStarsPositions[iRnd][3]*32+(1.0f-fT)*64);
UBYTE ubB = (UBYTE) (16+afStarsPositions[iRnd][2]*32+(1.0f-fT)*64);
UBYTE ubA = (UBYTE) (CalculateRatio( fT, 0.0f, 1.0f, 0.4f, 0.01f)*255);
COLOR colLine = RGBToColor( ubR, ubG, ubB) | ubA;
@ -5756,7 +5757,7 @@ void Particles_LarvaEnergy(CEntity *pen, FLOAT3D vOffset)
vZ*Cos(fT*360.0f)*fRadius;
UBYTE ubR = (UBYTE) (255);
UBYTE ubG = (UBYTE) (128+(1.0f-fT)*128);
UBYTE ubB = (UBYTE) (16+afStarsPositions[iRnd][3]*32+(1.0f-fT)*64);
UBYTE ubB = (UBYTE) (16+afStarsPositions[iRnd][2]*32+(1.0f-fT)*64);
FLOAT fFader=CalculateRatio( fT, 0.0f, 1.0f, 0.4f, 0.01f);
FLOAT fPulser=(1.0f+(sin((fT*fT)/4.0f)))/2.0f;
UBYTE ubA = (UBYTE) (fFader*fPulser*255);
@ -5854,7 +5855,7 @@ void Particles_ModelGlow( CEntity *pen, FLOAT tmEnd, enum ParticleTexture ptText
for( INDEX iVtx=0; iVtx<ctVtx-1; iVtx+=(INDEX)iVtxStep)
{
INDEX iRnd=iVtx%CT_MAX_PARTICLES_TABLE;
FLOAT fRndSize=afStarsPositions[iRnd][3];
FLOAT fRndSize=afStarsPositions[iRnd][2];
FLOAT3D vPos = avVertices[iVtx];
Particle_RenderSquare( vPos, (1.0f+fRndSize)*fSize, 0, iCol|ubCol);
@ -5895,7 +5896,7 @@ void Particles_ModelGlow2( CModelObject *mo, CPlacement3D pl, FLOAT tmEnd, enum
for( INDEX iVtx=0; iVtx<ctVtx-1; iVtx+=(INDEX)iVtxStep)
{
INDEX iRnd=iVtx%CT_MAX_PARTICLES_TABLE;
FLOAT fRndSize=afStarsPositions[iRnd][3];
FLOAT fRndSize=afStarsPositions[iRnd][2];
FLOAT3D vPos = avVertices[iVtx];
Particle_RenderSquare( vPos, (1.0f+fRndSize)*fSize, 0, iCol|ubCol);
@ -5977,11 +5978,11 @@ void Particles_RunAfterBurner(CEntity *pen, FLOAT tmEnd, FLOAT fStretch, INDEX i
// smoke
FLOAT3D vPosS = *pvPos1;
Particle_SetTexturePart( 512, 512, 1, 0);
FLOAT fAngleS = afStarsPositions[iRnd][2]*360.0f+fT*120.0f*afStarsPositions[iRnd][3];
FLOAT fAngleS = afStarsPositions[iRnd][1]*360.0f+fT*120.0f*afStarsPositions[iRnd][2];
FLOAT fSizeS = (0.5f+aSmoke_sol[iIndex]*2.5f)*fStretch;
FLOAT3D vVelocityS=FLOAT3D(afStarsPositions[iRnd][2],
afStarsPositions[iRnd][3],
afStarsPositions[iRnd][1])*5.0f;
FLOAT3D vVelocityS=FLOAT3D(afStarsPositions[iRnd][1],
afStarsPositions[iRnd][2],
afStarsPositions[iRnd][0])*5.0f;
vPosS=vPosS+vVelocityS*fT+vGDir*fGA/2.0f*(fT*fT)/32.0f;
col = ByteSwap(pcolSmoke[iIndex]);
col = (col&0xffffff00)|((col&0x000000ff)*ubColMul/255);