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disp_interface.cpp
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=====================================================================================//
#include "render_pch.h"
#include "decal_private.h"
#include "disp_defs.h"
#include "disp.h"
#include "gl_model_private.h"
#include "gl_matsysiface.h"
#include "gl_cvars.h"
#include "gl_rsurf.h"
#include "gl_lightmap.h"
#include "con_nprint.h"
#include "surfinfo.h"
#include "Overlay.h"
#include "cl_main.h"
#include "r_decal.h"
#include "materialsystem/materialsystem_config.h"
#include "tier0/vprof.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
// ----------------------------------------------------------------------------- //
// Shadow decals + fragments
// ----------------------------------------------------------------------------- //
static CUtlLinkedList< CDispShadowDecal, DispShadowHandle_t, true > s_DispShadowDecals;
static CUtlLinkedList< CDispShadowFragment, DispShadowFragmentHandle_t, true > s_DispShadowFragments;
static CUtlLinkedList< CDispDecal, DispShadowHandle_t, true > s_DispDecals;
static CUtlLinkedList< CDispDecalFragment, DispShadowFragmentHandle_t, true > s_DispDecalFragments;
void CDispInfo::GetIntersectingSurfaces( GetIntersectingSurfaces_Struct *pStruct )
{
if ( !m_Verts.Count() || !m_nIndices )
return;
// Walk through all of our triangles and add them one by one.
SurfInfo *pOut = &pStruct->m_pInfos[ pStruct->m_nSetInfos ];
for ( int iVert=0; iVert < m_MeshReader.NumIndices(); iVert += 3 )
{
// Is the list going to overflow?
if ( pStruct->m_nSetInfos >= pStruct->m_nMaxInfos )
break;
Vector const &a = m_MeshReader.Position( m_MeshReader.Index(iVert+0) - m_iVertOffset );
Vector const &b = m_MeshReader.Position( m_MeshReader.Index(iVert+1) - m_iVertOffset );
Vector const &c = m_MeshReader.Position( m_MeshReader.Index(iVert+2) - m_iVertOffset );
// Get the boundaries.
Vector vMin;
VectorMin( a, b, vMin );
VectorMin( c, vMin, vMin );
Vector vMax;
VectorMax( a, b, vMax );
VectorMax( c, vMax, vMax );
// See if it touches the sphere.
int iDim;
for ( iDim=0; iDim < 3; iDim++ )
{
if ( ((*pStruct->m_pCenter)[iDim]+pStruct->m_Radius) < vMin[iDim] ||
((*pStruct->m_pCenter)[iDim]-pStruct->m_Radius) > vMax[iDim] )
{
break;
}
}
if ( iDim == 3 )
{
// Couldn't reject the sphere in the loop above, so add this surface.
pOut->m_nVerts = 3;
pOut->m_Verts[0] = a;
pOut->m_Verts[1] = b;
pOut->m_Verts[2] = c;
pOut->m_Plane.m_Normal = ( c - a ).Cross( b - a );
VectorNormalize( pOut->m_Plane.m_Normal );
pOut->m_Plane.m_Dist = pOut->m_Plane.m_Normal.Dot( a );
++pStruct->m_nSetInfos;
++pOut;
}
}
}
// ----------------------------------------------------------------------------- //
// CDispInfo implementation of IDispInfo.
// ----------------------------------------------------------------------------- //
void CDispInfo::RenderWireframeInLightmapPage( int pageId )
{
#ifndef SWDS
// render displacement as wireframe into lightmap pages
SurfaceHandle_t surfID = GetParent();
Assert( ( MSurf_MaterialSortID( surfID ) >= 0 ) && ( MSurf_MaterialSortID( surfID ) < g_WorldStaticMeshes.Count() ) );
if( materialSortInfoArray[MSurf_MaterialSortID( surfID ) ].lightmapPageID != pageId )
return;
Shader_DrawLightmapPageSurface( surfID, 0.0f, 0.0f, 1.0f );
#endif
}
void CDispInfo::GetBoundingBox( Vector& bbMin, Vector& bbMax )
{
bbMin = m_BBoxMin;
bbMax = m_BBoxMax;
}
void CDispInfo::SetParent( SurfaceHandle_t surfID )
{
m_ParentSurfID = surfID;
}
// returns surfID
SurfaceHandle_t CDispInfo::GetParent( void )
{
return m_ParentSurfID;
}
unsigned int CDispInfo::ComputeDynamicLightMask( dlight_t *pLights )
{
int lightMask = 0;
#ifndef SWDS
if( !IS_SURF_VALID( m_ParentSurfID ) )
{
Assert( !"CDispInfo::ComputeDynamicLightMask: no parent surface" );
return 0;
}
for ( int lnum = 0, testBit = 1, mask = r_dlightactive; lnum < MAX_DLIGHTS && mask != 0; lnum++, mask >>= 1, testBit <<= 1 )
{
if ( mask & 1 )
{
// not lit by this light
if ( !(MSurf_DLightBits( m_ParentSurfID ) & testBit ) )
continue;
// This light doesn't affect the world
if ( pLights[lnum].flags & DLIGHT_NO_WORLD_ILLUMINATION)
continue;
// This is used to ensure a maximum number of dlights in a frame
if ( !R_CanUseVisibleDLight( lnum ) )
continue;
lightMask |= testBit;
}
}
#endif
return lightMask;
}
void CDispInfo::AddDynamicLights( dlight_t *pLights, unsigned int mask )
{
#ifndef SWDS
if( !IS_SURF_VALID( m_ParentSurfID ) )
{
Assert( !"CDispInfo::AddDynamicLights: no parent surface" );
return;
}
for ( int lnum = 0; lnum < MAX_DLIGHTS && mask != 0; lnum++, mask >>= 1 )
{
if ( mask & 1 )
{
if ( (pLights[lnum].flags & DLIGHT_DISPLACEMENT_MASK) == 0)
{
if( NumLightMaps() == 1 )
{
AddSingleDynamicLight( pLights[lnum] );
}
else
{
AddSingleDynamicLightBumped( pLights[lnum] );
}
}
else
{
AddSingleDynamicAlphaLight( pLights[lnum]);
}
}
}
#endif
}
//-----------------------------------------------------------------------------
// Allocates fragments...
//-----------------------------------------------------------------------------
CDispDecalFragment* CDispInfo::AllocateDispDecalFragment( DispDecalHandle_t h, int nVerts )
{
DispDecalFragmentHandle_t f = s_DispDecalFragments.Alloc(true);
s_DispDecalFragments.LinkBefore( s_DispDecals[h].m_FirstFragment, f );
s_DispDecals[h].m_FirstFragment = f;
CDispDecalFragment* pf = &s_DispDecalFragments[f];
// Initialize the vert count:
pf->m_nVerts = nVerts;
pf->m_pVerts = new CDecalVert[nVerts];
return pf;
}
//-----------------------------------------------------------------------------
// Clears decal fragment lists
//-----------------------------------------------------------------------------
void CDispInfo::ClearDecalFragments( DispDecalHandle_t h )
{
// Iterate over all fragments associated with each shadow decal
CDispDecal& decal = s_DispDecals[h];
DispDecalFragmentHandle_t f = decal.m_FirstFragment;
DispDecalFragmentHandle_t next;
while( f != DISP_DECAL_FRAGMENT_HANDLE_INVALID )
{
next = s_DispDecalFragments.Next(f);
s_DispDecalFragments.Free(f); // Destructs the decal, freeing the memory.
f = next;
}
// Blat out the list
decal.m_FirstFragment = DISP_DECAL_FRAGMENT_HANDLE_INVALID;
// Mark is as not computed
decal.m_Flags &= ~CDispDecalBase::FRAGMENTS_COMPUTED;
// Update the number of triangles in the decal
decal.m_nTris = 0;
decal.m_nVerts = 0;
}
void CDispInfo::ClearAllDecalFragments()
{
// Iterate over all shadow decals on the displacement
DispDecalHandle_t h = m_FirstDecal;
while( h != DISP_SHADOW_HANDLE_INVALID )
{
ClearDecalFragments( h );
h = s_DispDecals.Next(h);
}
}
// ----------------------------------------------------------------------------- //
// Add/remove decals
// ----------------------------------------------------------------------------- //
DispDecalHandle_t CDispInfo::NotifyAddDecal( decal_t *pDecal, float flSize )
{
// Create a new decal, link it in
DispDecalHandle_t h = s_DispDecals.Alloc( true );
if ( h != s_DispDecals.InvalidIndex() )
{
int nDecalCount = 0;
int iDecal = m_FirstDecal;
int iLastDecal = s_DispDecals.InvalidIndex();
while( iDecal != s_DispDecals.InvalidIndex() )
{
iLastDecal = iDecal;
iDecal = s_DispDecals.Next( iDecal );
++nDecalCount;
}
#ifndef SWDS
if ( nDecalCount >= MAX_DISP_DECALS )
{
R_DecalUnlink( s_DispDecals[iLastDecal].m_pDecal, host_state.worldbrush );
}
#endif
s_DispDecals.LinkBefore( m_FirstDecal, h );
m_FirstDecal = h;
CDispDecal *pDispDecal = &s_DispDecals[h];
pDispDecal->m_pDecal = pDecal;
pDispDecal->m_FirstFragment = DISP_DECAL_FRAGMENT_HANDLE_INVALID;
pDispDecal->m_nVerts = 0;
pDispDecal->m_nTris = 0;
pDispDecal->m_flSize = flSize;
// Setup a basis for it.
CDecalVert *pOutVerts = NULL;
R_SetupDecalClip( pOutVerts, pDispDecal->m_pDecal, MSurf_Plane( m_ParentSurfID ).normal, pDispDecal->m_pDecal->material,
pDispDecal->m_TextureSpaceBasis, pDispDecal->m_DecalWorldScale );
// Recurse and precalculate which nodes this thing can touch.
SetupDecalNodeIntersect( m_pPowerInfo->m_RootNode, 0, pDispDecal, 0 );
}
return h;
}
void CDispInfo::NotifyRemoveDecal( DispDecalHandle_t h )
{
// Any fragments we got we don't need
ClearDecalFragments(h);
// Reset the head of the list
if (m_FirstDecal == h)
m_FirstDecal = s_DispDecals.Next(h);
// Blow away the decal
s_DispDecals.Free( h );
}
//-----------------------------------------------------------------------------
// Allocates fragments...
//-----------------------------------------------------------------------------
CDispShadowFragment* CDispInfo::AllocateShadowDecalFragment( DispShadowHandle_t h, int nCount )
{
DispShadowFragmentHandle_t f = s_DispShadowFragments.Alloc(true);
s_DispShadowFragments.LinkBefore( s_DispShadowDecals[h].m_FirstFragment, f );
s_DispShadowDecals[h].m_FirstFragment = f;
CDispShadowFragment* pf = &s_DispShadowFragments[f];
pf->m_nVerts = nCount;
pf->m_ShadowVerts = new ShadowVertex_t[nCount];
return pf;
}
//-----------------------------------------------------------------------------
// Clears shadow decal fragment lists
//-----------------------------------------------------------------------------
void CDispInfo::ClearShadowDecalFragments( DispShadowHandle_t h )
{
// Iterate over all fragments associated with each shadow decal
CDispShadowDecal& decal = s_DispShadowDecals[h];
DispShadowFragmentHandle_t f = decal.m_FirstFragment;
DispShadowFragmentHandle_t next;
while( f != DISP_SHADOW_FRAGMENT_HANDLE_INVALID )
{
next = s_DispShadowFragments.Next(f);
s_DispShadowFragments.Free(f);
f = next;
}
// Blat out the list
decal.m_FirstFragment = DISP_SHADOW_FRAGMENT_HANDLE_INVALID;
// Mark is as not computed
decal.m_Flags &= ~CDispDecalBase::FRAGMENTS_COMPUTED;
// Update the number of triangles in the decal
decal.m_nTris = 0;
decal.m_nVerts = 0;
}
void CDispInfo::ClearAllShadowDecalFragments()
{
// Iterate over all shadow decals on the displacement
DispShadowHandle_t h = m_FirstShadowDecal;
while( h != DISP_SHADOW_HANDLE_INVALID )
{
ClearShadowDecalFragments( h );
h = s_DispShadowDecals.Next(h);
}
}
// ----------------------------------------------------------------------------- //
// Add/remove shadow decals
// ----------------------------------------------------------------------------- //
DispShadowHandle_t CDispInfo::AddShadowDecal( ShadowHandle_t shadowHandle )
{
// Create a new shadow decal, link it in
DispShadowHandle_t h = s_DispShadowDecals.Alloc( true );
s_DispShadowDecals.LinkBefore( m_FirstShadowDecal, h );
m_FirstShadowDecal = h;
CDispShadowDecal* pShadowDecal = &s_DispShadowDecals[h];
pShadowDecal->m_nTris = 0;
pShadowDecal->m_nVerts = 0;
pShadowDecal->m_Shadow = shadowHandle;
pShadowDecal->m_FirstFragment = DISP_SHADOW_FRAGMENT_HANDLE_INVALID;
return h;
}
void CDispInfo::RemoveShadowDecal( DispShadowHandle_t h )
{
// Any fragments we got we don't need
ClearShadowDecalFragments(h);
// Reset the head of the list
if (m_FirstShadowDecal == h)
m_FirstShadowDecal = s_DispShadowDecals.Next(h);
// Blow away the decal
s_DispShadowDecals.Free( h );
}
// ----------------------------------------------------------------------------- //
// This little beastie generate decal fragments
// ----------------------------------------------------------------------------- //
void CDispInfo::GenerateDecalFragments_R( CVertIndex const &nodeIndex,
int iNodeBitIndex, unsigned short decalHandle, CDispDecalBase *pDispDecal, int iLevel )
{
// Get the node info for this node...
Assert( iNodeBitIndex < m_pPowerInfo->m_NodeCount );
DispNodeInfo_t const& nodeInfo = m_pNodeInfo[iNodeBitIndex];
int iNodeIndex = VertIndex( nodeIndex );
// Don't bother adding decals if the node doesn't have decal info.
if( !pDispDecal->m_NodeIntersect.Get( iNodeBitIndex ) )
return;
// Recurse into child nodes, but only if they have triangles.
if ( ( iLevel+1 < m_Power ) && (nodeInfo.m_Flags & DispNodeInfo_t::CHILDREN_HAVE_TRIANGLES) )
{
int iChildNodeBit = iNodeBitIndex + 1;
for( int iChild=0; iChild < 4; iChild++ )
{
CVertIndex const &childNode = m_pPowerInfo->m_pChildVerts[iNodeIndex].m_Verts[iChild];
bool bActiveChild = m_ActiveVerts.Get( VertIndex( childNode ) ) != 0;
if ( bActiveChild )
GenerateDecalFragments_R( childNode, iChildNodeBit, decalHandle, pDispDecal, iLevel + 1
);
iChildNodeBit += m_pPowerInfo->m_NodeIndexIncrements[iLevel];
}
}
// Create the decal fragments on the node triangles
bool isShadow = (pDispDecal->m_Flags & CDispDecalBase::DECAL_SHADOW) != 0;
int index = nodeInfo.m_FirstTesselationIndex;
for ( int i = 0; i < nodeInfo.m_Count; i += 3 )
{
if (isShadow)
TestAddDecalTri( index + i, decalHandle, static_cast<CDispShadowDecal*>(pDispDecal)
);
else
TestAddDecalTri( index + i, decalHandle, static_cast<CDispDecal*>(pDispDecal) );
}
}
void CDispInfo::GenerateDecalFragments( CVertIndex const &nodeIndex,
int iNodeBitIndex, unsigned short decalHandle, CDispDecalBase *pDispDecal )
{
GenerateDecalFragments_R( nodeIndex, iNodeBitIndex, decalHandle, pDispDecal, 0 );
pDispDecal->m_Flags |= CDispDecalBase::FRAGMENTS_COMPUTED;
}
// ----------------------------------------------------------------------------- //
// Compute shadow fragments for a particular shadow
// ----------------------------------------------------------------------------- //
bool CDispInfo::ComputeShadowFragments( DispShadowHandle_t h, int& vertexCount, int& indexCount )
{
CDispShadowDecal* pShadowDecal = &s_DispShadowDecals[h];
// If we already have fragments, that means the data's already cached.
if ((pShadowDecal->m_Flags & CDispDecalBase::FRAGMENTS_COMPUTED) != 0)
{
vertexCount = pShadowDecal->m_nVerts;
indexCount = 3 * pShadowDecal->m_nTris;
return true;
}
// Check to see if the bitfield wasn't computed. If so, compute it.
// This should happen whenever the shadow moves
#ifndef SWDS
if ((pShadowDecal->m_Flags & CDispDecalBase::NODE_BITFIELD_COMPUTED ) == 0)
{
// First, determine the nodes that the shadow decal should affect
ShadowInfo_t const& info = g_pShadowMgr->GetInfo( pShadowDecal->m_Shadow );
SetupDecalNodeIntersect(
m_pPowerInfo->m_RootNode,
0, // node bit index into CDispDecal::m_NodeIntersects
pShadowDecal,
&info
);
}
#endif
// Check to see if there are any bits set in the bitfield, If not,
// this displacement should be taken out of the list of potential displacements
if (pShadowDecal->m_Flags & CDispDecalBase::NO_INTERSECTION)
return false;
// Now that we have the bitfield, compute the fragments
// It may happen that we have invalid fragments but valid bitfield.
// This can happen when a retesselation occurs
Assert( pShadowDecal->m_nTris == 0);
Assert( pShadowDecal->m_FirstFragment == DISP_SHADOW_FRAGMENT_HANDLE_INVALID);
GenerateDecalFragments( m_pPowerInfo->m_RootNode, 0, h, pShadowDecal );
// Compute the index + vertex counts
vertexCount = pShadowDecal->m_nVerts;
indexCount = 3 * pShadowDecal->m_nTris;
return true;
}
//-----------------------------------------------------------------------------
// Generate vertex lists
//-----------------------------------------------------------------------------
bool CDispInfo::GetTag()
{
return m_Tag == m_pDispArray->m_CurTag;
}
void CDispInfo::SetTag()
{
m_Tag = m_pDispArray->m_CurTag;
}
//-----------------------------------------------------------------------------
// Helpers for global functions.
//-----------------------------------------------------------------------------
// This function crashes in release without this pragma.
#if !defined( _X360 )
#pragma optimize( "g", off )
#endif
#pragma optimize( "", on )
void DispInfo_BuildPrimLists( int nSortGroup, SurfaceHandle_t *pList, int listCount, bool bDepthOnly,
CDispInfo *visibleDisps[MAX_MAP_DISPINFO], int &nVisibleDisps )
{
VPROF("DispInfo_BuildPrimLists");
nVisibleDisps = 0;
bool bDebugConvars = !bDepthOnly ? DispInfoRenderDebugModes() : false;
for( int i = 0; i < listCount; i++ )
{
CDispInfo *pDisp = static_cast<CDispInfo*>( pList[i]->pDispInfo );
if( !pDisp->Render( pDisp->m_pMesh, bDebugConvars ) )
continue;
// Add it to the list of visible displacements.
if( nVisibleDisps < MAX_MAP_DISPINFO )
{
visibleDisps[nVisibleDisps++] = pDisp;
}
if ( bDepthOnly )
continue;
#ifndef SWDS
OverlayMgr()->AddFragmentListToRenderList( nSortGroup, MSurf_OverlayFragmentList( pList[i] ), true );
#endif
}
}
ConVar disp_dynamic( "disp_dynamic", "0" );
void DispInfo_DrawPrimLists( ERenderDepthMode DepthMode )
{
#ifndef SWDS
VPROF("DispInfo_DrawPrimLists");
int nDispGroupsSize = g_DispGroups.Size();
int nFullbright = g_pMaterialSystemConfig->nFullbright;
CMatRenderContextPtr pRenderContext( materials );
for( int iGroup=0; iGroup < nDispGroupsSize; iGroup++ )
{
CDispGroup *pGroup = g_DispGroups[iGroup];
if( pGroup->m_nVisible == 0 )
continue;
if ( DepthMode != DEPTH_MODE_NORMAL )
{
// Select proper override material
int nAlphaTest = (int) pGroup->m_pMaterial->IsAlphaTested();
int nNoCull = (int) pGroup->m_pMaterial->IsTwoSided();
IMaterial *pDepthWriteMaterial;
if ( DepthMode == DEPTH_MODE_SHADOW )
{
pDepthWriteMaterial = g_pMaterialDepthWrite[nAlphaTest][nNoCull];
}
else
{
pDepthWriteMaterial = g_pMaterialSSAODepthWrite[nAlphaTest][nNoCull];
}
if ( nAlphaTest == 1 )
{
static unsigned int originalTextureVarCache = 0;
IMaterialVar *pOriginalTextureVar = pGroup->m_pMaterial->FindVarFast( "$basetexture", &originalTextureVarCache );
static unsigned int originalTextureFrameVarCache = 0;
IMaterialVar *pOriginalTextureFrameVar = pGroup->m_pMaterial->FindVarFast( "$frame", &originalTextureFrameVarCache );
static unsigned int originalAlphaRefCache = 0;
IMaterialVar *pOriginalAlphaRefVar = pGroup->m_pMaterial->FindVarFast( "$AlphaTestReference", &originalAlphaRefCache );
static unsigned int textureVarCache = 0;
IMaterialVar *pTextureVar = pDepthWriteMaterial->FindVarFast( "$basetexture", &textureVarCache );
static unsigned int textureFrameVarCache = 0;
IMaterialVar *pTextureFrameVar = pDepthWriteMaterial->FindVarFast( "$frame", &textureFrameVarCache );
static unsigned int alphaRefCache = 0;
IMaterialVar *pAlphaRefVar = pDepthWriteMaterial->FindVarFast( "$AlphaTestReference", &alphaRefCache );
if( pTextureVar && pOriginalTextureVar )
{
pTextureVar->SetTextureValue( pOriginalTextureVar->GetTextureValue() );
}
if( pTextureFrameVar && pOriginalTextureFrameVar )
{
pTextureFrameVar->SetIntValue( pOriginalTextureFrameVar->GetIntValue() );
}
if( pAlphaRefVar && pOriginalAlphaRefVar )
{
pAlphaRefVar->SetFloatValue( pOriginalAlphaRefVar->GetFloatValue() );
}
}
pRenderContext->Bind( pDepthWriteMaterial );
}
else
{
pRenderContext->Bind( pGroup->m_pMaterial );
}
if( nFullbright != 1 && DepthMode == DEPTH_MODE_NORMAL )
{
pRenderContext->BindLightmapPage( pGroup->m_LightmapPageID );
}
else
{
// If this code gets removed again, I'm chopping fingers off!
if( pGroup->m_pMaterial->GetPropertyFlag( MATERIAL_PROPERTY_NEEDS_BUMPED_LIGHTMAPS ) )
{
pRenderContext->BindLightmapPage( MATERIAL_SYSTEM_LIGHTMAP_PAGE_WHITE_BUMP );
}
else
{
pRenderContext->BindLightmapPage( MATERIAL_SYSTEM_LIGHTMAP_PAGE_WHITE );
}
}
int nMeshesSize = pGroup->m_Meshes.Size();
for( int iMesh=0; iMesh < nMeshesSize; iMesh++ )
{
CGroupMesh *pMesh = pGroup->m_Meshes[iMesh];
if( pMesh->m_nVisible == 0 )
continue;
if ( disp_dynamic.GetInt() )
{
for ( int iVisible=0; iVisible < pMesh->m_nVisible; iVisible++ )
{
pMesh->m_VisibleDisps[iVisible]->SpecifyDynamicMesh();
}
}
else
{
pMesh->m_pMesh->Draw( pMesh->m_Visible.Base(), pMesh->m_nVisible );
}
pMesh->m_nVisible = 0;
}
}
#endif
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void DecalDispSurfacesInit( void )
{
#ifndef SWDS
g_aDispDecalSortPool.RemoveAll();
++g_nDispDecalSortCheckCount;
#endif
}
//-----------------------------------------------------------------------------
// Purpose: Batch up visible displacement decals and build them if necessary.
//-----------------------------------------------------------------------------
void DispInfo_BatchDecals( CDispInfo **pVisibleDisps, int nVisibleDisps )
{
#ifndef SWDS
// Performance analysis.
VPROF( "DispInfo_BatchDecals" );
// Increment the decal sort check count and clear the pool.
DecalDispSurfacesInit();
// Do we have any visible displacements?
if( !nVisibleDisps )
return;
for( int iDisp = 0; iDisp < nVisibleDisps; ++iDisp )
{
// Get the current visible displacement and see if it has any decals.
CDispInfo *pDisp = pVisibleDisps[iDisp];
if( pDisp->m_FirstDecal == DISP_DECAL_HANDLE_INVALID )
continue;
DispDecalHandle_t hDecal = pDisp->m_FirstDecal;
while ( hDecal != DISP_DECAL_HANDLE_INVALID )
{
CDispDecal &decal = s_DispDecals[hDecal];
// Create the displacement fragment if necessary.
if ( ( decal.m_Flags & CDispDecalBase::FRAGMENTS_COMPUTED ) == 0 )
{
pDisp->GenerateDecalFragments( pDisp->m_pPowerInfo->m_RootNode, 0, hDecal, &decal );
}
// Don't draw if there's no triangles.
if ( decal.m_nTris == 0 )
{
hDecal = s_DispDecals.Next( hDecal );
continue;
}
// Get the decal material.
IMaterial *pMaterial = decal.m_pDecal->material;
if ( !pMaterial )
{
DevMsg( "DispInfo_BatchDecals: material is NULL, decal %i.\n", hDecal );
hDecal = s_DispDecals.Next( hDecal );
continue;
}
// Lightmap decals.
int iTreeType = -1;
if ( pMaterial->GetPropertyFlag( MATERIAL_PROPERTY_NEEDS_LIGHTMAP ) )
{
// Permanent lightmapped decals.
if ( decal.m_pDecal->flags & FDECAL_PERMANENT )
{
iTreeType = PERMANENT_LIGHTMAP;
}
// Non-permanent lightmapped decals.
else
{
iTreeType = LIGHTMAP;
}
}
// Non-lightmapped decals.
else
{
iTreeType = NONLIGHTMAP;
}
// There is only one group at a time.
int iGroup = 0;
intp iPool = g_aDispDecalSortPool.Alloc( true );
g_aDispDecalSortPool[iPool] = decal.m_pDecal;
int iSortTree = decal.m_pDecal->m_iSortTree;
int iSortMaterial = decal.m_pDecal->m_iSortMaterial;
DecalMaterialBucket_t &materialBucket = g_aDispDecalSortTrees[iSortTree].m_aDecalSortBuckets[iGroup][iTreeType].Element( iSortMaterial );
if ( materialBucket.m_nCheckCount == g_nDispDecalSortCheckCount )
{
intp iHead = materialBucket.m_iHead;
g_aDispDecalSortPool.LinkBefore( iHead, iPool );
}
materialBucket.m_iHead = iPool;
materialBucket.m_nCheckCount = g_nDispDecalSortCheckCount;
hDecal = s_DispDecals.Next( hDecal );
}
}
#endif
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
inline void DispInfo_DrawDecalMeshList( DecalMeshList_t &meshList )
{
CMatRenderContextPtr pRenderContext( materials );
bool bMatFullbright = ( g_pMaterialSystemConfig->nFullbright == 1 );
int nBatchCount = meshList.m_aBatches.Count();
for ( int iBatch = 0; iBatch < nBatchCount; ++iBatch )
{
const DecalBatchList_t &batch = meshList.m_aBatches[iBatch];
if ( !bMatFullbright )
{
pRenderContext->BindLightmapPage( batch.m_iLightmapPage );
}
else
{
pRenderContext->BindLightmapPage( MATERIAL_SYSTEM_LIGHTMAP_PAGE_WHITE );
}
pRenderContext->Bind( batch.m_pMaterial, batch.m_pProxy );
meshList.m_pMesh->Draw( batch.m_iStartIndex, batch.m_nIndexCount );
}
}
void DispInfo_DrawDecalsGroup( int iGroup, int iTreeType )
{
#ifndef SWDS
CMatRenderContextPtr pRenderContext( materials );
DecalMeshList_t meshList;
CMeshBuilder meshBuilder;
int nVertCount = 0;
int nIndexCount = 0;
int nDecalSortMaxVerts;
int nDecalSortMaxIndices;
R_DecalsGetMaxMesh( pRenderContext, nDecalSortMaxVerts, nDecalSortMaxIndices );
bool bMatWireframe = ShouldDrawInWireFrameMode();
int nSortTreeCount = g_aDispDecalSortTrees.Count();
for ( int iSortTree = 0; iSortTree < nSortTreeCount; ++iSortTree )
{
bool bMeshInit = true;
const CUtlVector<DecalMaterialBucket_t> &materialBucketList = g_aDispDecalSortTrees[iSortTree].m_aDecalSortBuckets[iGroup][iTreeType];
int nBucketCount = materialBucketList.Count();
for ( int iBucket = 0; iBucket < nBucketCount; ++iBucket )
{
if ( materialBucketList.Element( iBucket ).m_nCheckCount != g_nDispDecalSortCheckCount )
continue;
intp iHead = materialBucketList.Element( iBucket ).m_iHead;
if ( !g_aDispDecalSortPool.IsValidIndex( iHead ) )
continue;
decal_t *pDecalHead = g_aDispDecalSortPool.Element( iHead );
Assert( pDecalHead->material );
if ( !pDecalHead->material )
continue;
// Vertex format.
VertexFormat_t vertexFormat = pDecalHead->material->GetVertexFormat();
if ( vertexFormat == 0 )
continue;
// New bucket = new batch.
DecalBatchList_t *pBatch = NULL;
bool bBatchInit = true;
int nCount;
intp iElement = iHead;
while ( iElement != g_aDispDecalSortPool.InvalidIndex() )
{
decal_t *pDecal = g_aDispDecalSortPool.Element( iElement );
iElement = g_aDispDecalSortPool.Next( iElement );
CDispDecal &decal = s_DispDecals[pDecal->m_DispDecal];
// Now draw all the fragments with this material.
IMaterial* pMaterial = decal.m_pDecal->material;
if ( !pMaterial )
{
DevMsg( "DispInfo_DrawDecalsGroup: material is NULL decal %i.\n", pDecal->m_DispDecal );
continue;
}
DispDecalFragmentHandle_t hFrag = decal.m_FirstFragment;
while ( hFrag != DISP_DECAL_FRAGMENT_HANDLE_INVALID )
{
CDispDecalFragment &fragment = s_DispDecalFragments[hFrag];
hFrag = s_DispDecalFragments.Next( hFrag );
nCount = fragment.m_nVerts;
// Overflow - new mesh, batch.
if ( ( ( nVertCount + nCount ) >= nDecalSortMaxVerts ) || ( nIndexCount + ( nCount - 2 ) >= nDecalSortMaxIndices ) )
{
// Finish this batch.
if ( pBatch )
{
pBatch->m_nIndexCount = ( nIndexCount - pBatch->m_iStartIndex );
}
// End the mesh building phase and render.
meshBuilder.End();
DispInfo_DrawDecalMeshList( meshList );
// Reset.
bMeshInit = true;
pBatch = NULL;
bBatchInit = true;
}
// Create the mesh.
if ( bMeshInit )
{
// Reset the mesh list.
meshList.m_pMesh = NULL;
meshList.m_aBatches.RemoveAll();
if ( !bMatWireframe )
{
meshList.m_pMesh = pRenderContext->GetDynamicMesh( false, NULL, NULL, pDecalHead->material );
}
else
{
meshList.m_pMesh = pRenderContext->GetDynamicMesh( false, NULL, NULL, g_materialDecalWireframe );
}
meshBuilder.Begin( meshList.m_pMesh, MATERIAL_TRIANGLES, nDecalSortMaxVerts, nDecalSortMaxIndices );
nVertCount = 0;
nIndexCount = 0;
bMeshInit = false;
}
// Create the batch.
if ( bBatchInit )
{
// Create a batch for this bucket = material/lightmap pair.
int iBatchList = meshList.m_aBatches.AddToTail();
pBatch = &meshList.m_aBatches[iBatchList];
pBatch->m_iStartIndex = nIndexCount;
if ( !bMatWireframe )
{
pBatch->m_pMaterial = pDecalHead->material;
pBatch->m_pProxy = pDecalHead->userdata;
pBatch->m_iLightmapPage = materialSortInfoArray[MSurf_MaterialSortID( pDecalHead->surfID )].lightmapPageID;
}
else
{
pBatch->m_pMaterial = g_materialDecalWireframe;
}
bBatchInit = false;
}
Assert ( pBatch );
// Setup verts.
float flOffset = fragment.m_pDecal->lightmapOffset;
for ( int iVert = 0; iVert < fragment.m_nVerts; ++iVert )
{
const CDecalVert &vert = fragment.m_pVerts[iVert];
meshBuilder.Position3fv( vert.m_vPos.Base() );
// FIXME!! Really want the normal from the displacement, not from the base surface.
Vector &normal = MSurf_Plane( fragment.m_pDecal->surfID ).normal;
meshBuilder.Normal3fv( normal.Base() );
meshBuilder.Color4ub( fragment.m_pDecal->color.r, fragment.m_pDecal->color.g, fragment.m_pDecal->color.b, fragment.m_pDecal->color.a );
meshBuilder.TexCoord2f( 0, vert.m_ctCoords.x, vert.m_ctCoords.y );
meshBuilder.TexCoord2f( 1, vert.m_cLMCoords.x, vert.m_cLMCoords.y );
meshBuilder.TexCoord1f( 2, flOffset );
meshBuilder.AdvanceVertex();
}
// Setup indices.
int nTriCount = ( nCount - 2 );
CIndexBuilder &indexBuilder = meshBuilder;
indexBuilder.FastPolygon( nVertCount, nTriCount );
// Update counters.
nVertCount += nCount;
nIndexCount += ( nTriCount * 3 );
}
if ( pBatch )
{
pBatch->m_nIndexCount = ( nIndexCount - pBatch->m_iStartIndex );
}
}
}
if ( !bMeshInit )
{
meshBuilder.End();
DispInfo_DrawDecalMeshList( meshList );
}
}
#endif
}
void DispInfo_DrawDecals( CDispInfo **visibleDisps, int nVisibleDisps )
{
#ifndef SWDS