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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=============================================================================//
#include "mdllib_common.h"
#include "mdllib_stripinfo.h"
#include "mdllib_utils.h"
#include "studio.h"
#include "optimize.h"
#include "materialsystem/imaterial.h"
#include "materialsystem/hardwareverts.h"
#include "smartptr.h"
//////////////////////////////////////////////////////////////////////////
//
// CMdlStripInfo implementation
//
//////////////////////////////////////////////////////////////////////////
CMdlStripInfo::CMdlStripInfo() :
m_eMode( MODE_UNINITIALIZED ),
m_lChecksumOld( 0 ),
m_lChecksumNew( 0 )
{
NULL;
}
bool CMdlStripInfo::Serialize( CUtlBuffer &bufStorage ) const
{
char chHeader[ 4 ] = { 'M', 'A', 'P', m_eMode };
bufStorage.Put( chHeader, sizeof( chHeader ) );
switch ( m_eMode )
{
default:
case MODE_UNINITIALIZED:
return true;
case MODE_NO_CHANGE:
bufStorage.PutInt( m_lChecksumOld );
bufStorage.PutInt( m_lChecksumNew );
return true;
case MODE_STRIP_LOD_1N:
bufStorage.PutInt( m_lChecksumOld );
bufStorage.PutInt( m_lChecksumNew );
bufStorage.PutInt( m_vtxVerts.GetNumBits() );
for ( uint32 const *pdwBase = m_vtxVerts.Base(), *pdwEnd = pdwBase + m_vtxVerts.GetNumDWords();
pdwBase < pdwEnd; ++ pdwBase )
bufStorage.PutUnsignedInt( *pdwBase );
bufStorage.PutInt( m_vtxIndices.Count() );
for ( unsigned short const *pusBase = m_vtxIndices.Base(), *pusEnd = pusBase + m_vtxIndices.Count();
pusBase < pusEnd; ++ pusBase )
bufStorage.PutUnsignedShort( *pusBase );
bufStorage.PutInt( m_vtxMdlOffsets.Count() );
for ( MdlRangeItem const *pmri = m_vtxMdlOffsets.Base(), *pmriEnd = pmri + m_vtxMdlOffsets.Count();
pmri < pmriEnd; ++ pmri )
bufStorage.PutInt( pmri->m_offOld ),
bufStorage.PutInt( pmri->m_offNew ),
bufStorage.PutInt( pmri->m_numOld ),
bufStorage.PutInt( pmri->m_numNew );
return true;
}
}
bool CMdlStripInfo::UnSerialize( CUtlBuffer &bufData )
{
char chHeader[ 4 ];
bufData.Get( chHeader, sizeof( chHeader ) );
if ( memcmp( chHeader, "MAP", 3 ) )
return false;
switch ( chHeader[3] )
{
default:
return false;
case MODE_UNINITIALIZED:
m_eMode = MODE_UNINITIALIZED;
m_lChecksumOld = 0;
m_lChecksumNew = 0;
return true;
case MODE_NO_CHANGE:
m_eMode = MODE_NO_CHANGE;
m_lChecksumOld = bufData.GetInt();
m_lChecksumNew = bufData.GetInt();
return true;
case MODE_STRIP_LOD_1N:
m_eMode = MODE_STRIP_LOD_1N;
m_lChecksumOld = bufData.GetInt();
m_lChecksumNew = bufData.GetInt();
m_vtxVerts.Resize( bufData.GetInt(), true );
for ( uint32 *pdwBase = m_vtxVerts.Base(), *pdwEnd = pdwBase + m_vtxVerts.GetNumDWords();
pdwBase < pdwEnd; ++ pdwBase )
*pdwBase = bufData.GetUnsignedInt();
m_vtxIndices.SetCount( bufData.GetInt() );
for ( unsigned short *pusBase = m_vtxIndices.Base(), *pusEnd = pusBase + m_vtxIndices.Count();
pusBase < pusEnd; ++ pusBase )
*pusBase = bufData.GetUnsignedShort();
m_vtxMdlOffsets.SetCount( bufData.GetInt() );
for ( MdlRangeItem *pmri = m_vtxMdlOffsets.Base(), *pmriEnd = pmri + m_vtxMdlOffsets.Count();
pmri < pmriEnd; ++ pmri )
pmri->m_offOld = bufData.GetInt(),
pmri->m_offNew = bufData.GetInt(),
pmri->m_numOld = bufData.GetInt(),
pmri->m_numNew = bufData.GetInt();
return true;
}
}
// Returns the checksums that the stripping info was generated for:
// plChecksumOriginal if non-NULL will hold the checksum of the original model submitted for stripping
// plChecksumStripped if non-NULL will hold the resulting checksum of the stripped model
bool CMdlStripInfo::GetCheckSum( long *plChecksumOriginal, long *plChecksumStripped ) const
{
if ( m_eMode == MODE_UNINITIALIZED )
return false;
if ( plChecksumOriginal )
*plChecksumOriginal = m_lChecksumOld;
if ( plChecksumStripped )
*plChecksumStripped = m_lChecksumNew;
return true;
}
//
// StripHardwareVertsBuffer
// The main function that strips the vhv buffer
// vhvBuffer - vhv buffer, updated, size reduced
//
bool CMdlStripInfo::StripHardwareVertsBuffer( CUtlBuffer &vhvBuffer )
{
if ( m_eMode == MODE_UNINITIALIZED )
return false;
//
// Recover vhv header
//
DECLARE_PTR( HardwareVerts::FileHeader_t, vhvHdr, BYTE_OFF_PTR( vhvBuffer.Base(), vhvBuffer.TellGet() ) );
int vhvLength = vhvBuffer.TellPut() - vhvBuffer.TellGet();
if ( vhvHdr->m_nChecksum != m_lChecksumOld )
{
DLog( "mdllib", 1, "ERROR: [StripHardwareVertsBuffer] checksum mismatch!\n" );
return false;
}
vhvHdr->m_nChecksum = m_lChecksumNew;
// No remapping required
if ( m_eMode == MODE_NO_CHANGE )
return true;
Assert( m_eMode == MODE_STRIP_LOD_1N );
//
// Now reconstruct the vhv structures to do the mapping
//
CRemoveTracker vhvRemove;
size_t vhvVertOffset = ~size_t( 0 ), vhvEndMeshOffset = sizeof( HardwareVerts::FileHeader_t );
int numMeshesRemoved = 0, numVertsRemoved = 0;
ITERATE_CHILDREN( HardwareVerts::MeshHeader_t, vhvMesh, vhvHdr, pMesh, m_nMeshes )
if ( vhvMesh->m_nOffset < vhvVertOffset )
vhvVertOffset = vhvMesh->m_nOffset;
if ( BYTE_DIFF_PTR( vhvHdr, vhvMesh + 1 ) > vhvEndMeshOffset )
vhvEndMeshOffset = BYTE_DIFF_PTR( vhvHdr, vhvMesh + 1 );
if ( !vhvMesh->m_nLod )
continue;
vhvRemove.RemoveBytes( BYTE_OFF_PTR( vhvHdr, vhvMesh->m_nOffset ), vhvMesh->m_nVertexes * vhvHdr->m_nVertexSize );
vhvRemove.RemoveElements( vhvMesh );
numVertsRemoved += vhvMesh->m_nVertexes;
++ numMeshesRemoved;
ITERATE_END
vhvRemove.RemoveBytes( BYTE_OFF_PTR( vhvHdr, vhvEndMeshOffset ), vhvVertOffset - vhvEndMeshOffset ); // Padding
vhvRemove.RemoveBytes( BYTE_OFF_PTR( vhvHdr, vhvVertOffset + vhvHdr->m_nVertexes * vhvHdr->m_nVertexSize ), vhvLength - ( vhvVertOffset + vhvHdr->m_nVertexes * vhvHdr->m_nVertexSize ) );
vhvRemove.Finalize();
DLog( "mdllib", 3, " Stripped %d vhv bytes.\n", vhvRemove.GetNumBytesRemoved() );
// Verts must be aligned from hdr, length must be aligned from hdr
size_t vhvNewVertOffset = vhvRemove.ComputeOffset( vhvHdr, vhvVertOffset );
size_t vhvAlignedVertOffset = ALIGN_VALUE( vhvNewVertOffset, 4 );
ITERATE_CHILDREN( HardwareVerts::MeshHeader_t, vhvMesh, vhvHdr, pMesh, m_nMeshes )
vhvMesh->m_nOffset = vhvRemove.ComputeOffset( vhvHdr, vhvMesh->m_nOffset ) + vhvAlignedVertOffset - vhvNewVertOffset;
ITERATE_END
vhvHdr->m_nMeshes -= numMeshesRemoved;
vhvHdr->m_nVertexes -= numVertsRemoved;
// Remove the memory
vhvRemove.MemMove( vhvHdr, vhvLength ); // All padding has been removed
size_t numBytesNewLength = vhvLength + vhvAlignedVertOffset - vhvNewVertOffset;
size_t numAlignedNewLength = ALIGN_VALUE( numBytesNewLength, 4 );
// Now reinsert the padding
CInsertionTracker vhvInsertPadding;
vhvInsertPadding.InsertBytes( BYTE_OFF_PTR( vhvHdr, vhvNewVertOffset ), vhvAlignedVertOffset - vhvNewVertOffset );
vhvInsertPadding.InsertBytes( BYTE_OFF_PTR( vhvHdr, vhvLength ), numAlignedNewLength - numBytesNewLength );
vhvInsertPadding.Finalize();
DLog( "mdllib", 3, " Inserted %d alignment bytes.\n", vhvInsertPadding.GetNumBytesInserted() );
vhvInsertPadding.MemMove( vhvHdr, vhvLength );
// Update the buffer length
vhvBuffer.SeekPut( CUtlBuffer::SEEK_CURRENT, vhvBuffer.TellGet() + vhvLength - vhvBuffer.TellPut() );
DLog( "mdllib", 2, " Reduced vhv buffer by %d bytes.\n", vhvRemove.GetNumBytesRemoved() - vhvInsertPadding.GetNumBytesInserted() );
// Done
return true;
}
//
// StripModelBuffer
// The main function that strips the mdl buffer
// mdlBuffer - mdl buffer, updated
//
bool CMdlStripInfo::StripModelBuffer( CUtlBuffer &mdlBuffer )
{
if ( m_eMode == MODE_UNINITIALIZED )
return false;
//
// Recover mdl header
//
DECLARE_PTR( studiohdr_t, mdlHdr, BYTE_OFF_PTR( mdlBuffer.Base(), mdlBuffer.TellGet() ) );
if ( mdlHdr->checksum != m_lChecksumOld )
{
DLog( "mdllib", 1, "ERROR: [StripModelBuffer] checksum mismatch!\n" );
return false;
}
mdlHdr->checksum = m_lChecksumNew;
// No remapping required
if ( m_eMode == MODE_NO_CHANGE )
return true;
Assert( m_eMode == MODE_STRIP_LOD_1N );
//
// Do the model buffer stripping
//
CUtlSortVector< unsigned short, CLessSimple< unsigned short > > &srcIndices = m_vtxIndices;
ITERATE_CHILDREN( mstudiobodyparts_t, mdlBodyPart, mdlHdr, pBodypart, numbodyparts )
ITERATE_CHILDREN( mstudiomodel_t, mdlModel, mdlBodyPart, pModel, nummodels )
DLog( "mdllib", 3, " Stripped %d vertexes (was: %d, now: %d).\n", mdlModel->numvertices - srcIndices.Count(), mdlModel->numvertices, srcIndices.Count() );
mdlModel->numvertices = srcIndices.Count();
ITERATE_CHILDREN( mstudiomesh_t, mdlMesh, mdlModel, pMesh, nummeshes )
mdlMesh->numvertices = srcIndices.FindLess( mdlMesh->vertexoffset + mdlMesh->numvertices );
mdlMesh->vertexoffset = srcIndices.FindLess( mdlMesh->vertexoffset ) + 1;
mdlMesh->numvertices -= mdlMesh->vertexoffset - 1;
// Truncate the number of vertexes
for ( int k = 0; k < ARRAYSIZE( mdlMesh->vertexdata.numLODVertexes ); ++ k )
mdlMesh->vertexdata.numLODVertexes[ k ] = mdlMesh->numvertices;
ITERATE_END
ITERATE_END
ITERATE_END
//
// Update bones not to mention anything below LOD0
//
ITERATE_CHILDREN( mstudiobone_t, mdlBone, mdlHdr, pBone, numbones )
mdlBone->flags &= ( BONE_USED_BY_VERTEX_LOD0 | ~BONE_USED_BY_VERTEX_MASK );
ITERATE_END
DLog( "mdllib", 3, " Updated %d bone(s).\n", mdlHdr->numbones );
return true;
}
//
// StripVertexDataBuffer
// The main function that strips the vvd buffer
// vvdBuffer - vvd buffer, updated, size reduced
//
bool CMdlStripInfo::StripVertexDataBuffer( CUtlBuffer &vvdBuffer )
{
if ( m_eMode == MODE_UNINITIALIZED )
return false;
//
// Recover vvd header
//
DECLARE_PTR( vertexFileHeader_t, vvdHdr, BYTE_OFF_PTR( vvdBuffer.Base(), vvdBuffer.TellGet() ) );
int vvdLength = vvdBuffer.TellPut() - vvdBuffer.TellGet();
if ( vvdHdr->checksum != m_lChecksumOld )
{
DLog( "mdllib", 1, "ERROR: [StripVertexDataBuffer] checksum mismatch!\n" );
return false;
}
vvdHdr->checksum = m_lChecksumNew;
// No remapping required
if ( m_eMode == MODE_NO_CHANGE )
return true;
Assert( m_eMode == MODE_STRIP_LOD_1N );
//
// Do the vertex data buffer stripping
//
CUtlSortVector< unsigned short, CLessSimple< unsigned short > > &srcIndices = m_vtxIndices;
int mdlNumVerticesOld = vvdHdr->numLODVertexes[ 0 ];
vvdHdr->numLODs = 1;
for ( int k = 0; k < ARRAYSIZE( vvdHdr->numLODVertexes ); ++ k )
vvdHdr->numLODVertexes[ k ] = srcIndices.Count();
DECLARE_PTR( mstudiovertex_t, vvdVertexSrc, BYTE_OFF_PTR( vvdHdr, vvdHdr->vertexDataStart ) );
DECLARE_PTR( Vector4D, vvdTangentSrc, vvdHdr->tangentDataStart ? BYTE_OFF_PTR( vvdHdr, vvdHdr->tangentDataStart ) : NULL );
// Apply the fixups first of all
if ( vvdHdr->numFixups )
{
CArrayAutoPtr< byte > memTempVVD( new byte[ vvdLength ] );
DECLARE_PTR( mstudiovertex_t, vvdVertexNew, BYTE_OFF_PTR( memTempVVD.Get(), vvdHdr->vertexDataStart ) );
DECLARE_PTR( Vector4D, vvdTangentNew, BYTE_OFF_PTR( memTempVVD.Get(), vvdHdr->tangentDataStart ) );
DECLARE_PTR( vertexFileFixup_t, vvdFixup, BYTE_OFF_PTR( vvdHdr, vvdHdr->fixupTableStart ) );
for ( int k = 0; k < vvdHdr->numFixups; ++ k )
{
memcpy( vvdVertexNew, vvdVertexSrc + vvdFixup[ k ].sourceVertexID, vvdFixup[ k ].numVertexes * sizeof( *vvdVertexNew ) );
vvdVertexNew += vvdFixup[ k ].numVertexes;
if ( vvdTangentSrc )
{
memcpy( vvdTangentNew, vvdTangentSrc + vvdFixup[ k ].sourceVertexID, vvdFixup[ k ].numVertexes * sizeof( *vvdTangentNew ) );
vvdTangentNew += vvdFixup[ k ].numVertexes;
}
}
// Move back the memory after fixups were applied
vvdVertexSrc ? memcpy( vvdVertexSrc, BYTE_OFF_PTR( memTempVVD.Get(), vvdHdr->vertexDataStart ), mdlNumVerticesOld * sizeof( *vvdVertexSrc ) ) : 0;
vvdTangentSrc ? memcpy( vvdTangentSrc, BYTE_OFF_PTR( memTempVVD.Get(), vvdHdr->tangentDataStart ), mdlNumVerticesOld * sizeof( *vvdTangentSrc ) ) : 0;
}
vvdHdr->vertexDataStart -= ALIGN_VALUE( sizeof( vertexFileFixup_t ) * vvdHdr->numFixups, 16 );
vvdHdr->numFixups = 0;
DECLARE_PTR( mstudiovertex_t, vvdVertexNew, BYTE_OFF_PTR( vvdHdr, vvdHdr->vertexDataStart ) );
for ( int k = 0; k < srcIndices.Count(); ++ k )
vvdVertexNew[ k ] = vvdVertexSrc[ srcIndices[ k ] ];
size_t newVertexDataSize = srcIndices.Count() * sizeof( mstudiovertex_t );
int vvdLengthOld = vvdLength;
vvdLength = vvdHdr->vertexDataStart + newVertexDataSize;
if ( vvdTangentSrc )
{
// Move the tangents
vvdHdr->tangentDataStart = vvdLength;
DECLARE_PTR( Vector4D, vvdTangentNew, BYTE_OFF_PTR( vvdHdr, vvdHdr->tangentDataStart ) );
for ( int k = 0; k < srcIndices.Count(); ++ k )
vvdTangentNew[ k ] = vvdTangentSrc[ srcIndices[ k ] ];
vvdLength += srcIndices.Count() * sizeof( Vector4D );
}
vvdBuffer.SeekPut( CUtlBuffer::SEEK_CURRENT, vvdBuffer.TellGet() + vvdLength - vvdBuffer.TellPut() );
DLog( "mdllib", 3, " Stripped %d vvd bytes.\n", vvdLengthOld - vvdLength );
return true;
}
//
// StripOptimizedModelBuffer
// The main function that strips the vtx buffer
// vtxBuffer - vtx buffer, updated, size reduced
//
bool CMdlStripInfo::StripOptimizedModelBuffer( CUtlBuffer &vtxBuffer )
{
if ( m_eMode == MODE_UNINITIALIZED )
return false;
//
// Recover vtx header
//
DECLARE_PTR( OptimizedModel::FileHeader_t, vtxHdr, BYTE_OFF_PTR( vtxBuffer.Base(), vtxBuffer.TellGet() ) );
int vtxLength = vtxBuffer.TellPut() - vtxBuffer.TellGet();
if ( vtxHdr->checkSum != m_lChecksumOld )
{
DLog( "mdllib", 1, "ERROR: [StripOptimizedModelBuffer] checksum mismatch!\n" );
return false;
}
vtxHdr->checkSum = m_lChecksumNew;
// No remapping required
if ( m_eMode == MODE_NO_CHANGE )
return true;
Assert( m_eMode == MODE_STRIP_LOD_1N );
//
// Do the optimized model buffer stripping
//
CUtlSortVector< unsigned short, CLessSimple< unsigned short > > &srcIndices = m_vtxIndices;
CUtlSortVector< CMdlStripInfo::MdlRangeItem, CLessSimple< CMdlStripInfo::MdlRangeItem > > &arrMdlOffsets = m_vtxMdlOffsets;
size_t vtxOffIndexBuffer = ~size_t(0), vtxOffIndexBufferEnd = 0;
size_t vtxOffVertexBuffer = ~size_t(0), vtxOffVertexBufferEnd = 0;
CRemoveTracker vtxRemove;
CUtlVector< size_t > vtxOffIndex;
CUtlVector< size_t > vtxOffVertex;
vtxRemove.RemoveElements( CHILD_AT( vtxHdr, pMaterialReplacementList, 1 ), vtxHdr->numLODs - 1 );
ITERATE_CHILDREN( OptimizedModel::MaterialReplacementListHeader_t, vtxMatList, vtxHdr, pMaterialReplacementList, numLODs )
if ( !vtxMatList_idx ) continue;
vtxRemove.RemoveElements( CHILD_AT( vtxMatList, pMaterialReplacement, 0 ), vtxMatList->numReplacements );
ITERATE_CHILDREN( OptimizedModel::MaterialReplacementHeader_t, vtxMat, vtxMatList, pMaterialReplacement, numReplacements )
char const *szName = vtxMat->pMaterialReplacementName();
vtxRemove.RemoveElements( szName, szName ? strlen( szName ) + 1 : 0 );
ITERATE_END
ITERATE_END
ITERATE_CHILDREN( OptimizedModel::BodyPartHeader_t, vtxBodyPart, vtxHdr, pBodyPart, numBodyParts )
ITERATE_CHILDREN( OptimizedModel::ModelHeader_t, vtxModel, vtxBodyPart, pModel, numModels )
vtxRemove.RemoveElements( CHILD_AT( vtxModel, pLOD, 1 ), vtxModel->numLODs - 1 );
ITERATE_CHILDREN( OptimizedModel::ModelLODHeader_t, vtxLod, vtxModel, pLOD, numLODs )
if ( !vtxLod_idx ) // Process only lod1-N
continue;
vtxRemove.RemoveElements( CHILD_AT( vtxLod, pMesh, 0 ), vtxLod->numMeshes );
ITERATE_CHILDREN( OptimizedModel::MeshHeader_t, vtxMesh, vtxLod, pMesh, numMeshes )
vtxRemove.RemoveElements( CHILD_AT( vtxMesh, pStripGroup, 0 ), vtxMesh->numStripGroups );
ITERATE_CHILDREN( OptimizedModel::StripGroupHeader_t, vtxStripGroup, vtxMesh, pStripGroup, numStripGroups )
vtxRemove.RemoveElements( CHILD_AT( vtxStripGroup, pStrip, 0 ), vtxStripGroup->numStrips );
ITERATE_CHILDREN( OptimizedModel::StripHeader_t, vtxStrip, vtxStripGroup, pStrip, numStrips )
vtxRemove.RemoveElements( CHILD_AT( vtxStrip, pBoneStateChange, 0 ), vtxStrip->numBoneStateChanges );
ITERATE_END
ITERATE_END
ITERATE_END
ITERATE_END
// Use all lods to determine the ranges of vertex and index buffers.
// We rely on the fact that vertex and index buffers are laid out as one solid memory block for all lods.
ITERATE_CHILDREN( OptimizedModel::ModelLODHeader_t, vtxLod, vtxModel, pLOD, numLODs )
ITERATE_CHILDREN( OptimizedModel::MeshHeader_t, vtxMesh, vtxLod, pMesh, numMeshes )
ITERATE_CHILDREN( OptimizedModel::StripGroupHeader_t, vtxStripGroup, vtxMesh, pStripGroup, numStripGroups )
size_t offIndex = BYTE_DIFF_PTR( vtxHdr, CHILD_AT( vtxStripGroup, pIndex, 0 ) );
size_t offIndexEnd = BYTE_DIFF_PTR( vtxHdr, CHILD_AT( vtxStripGroup, pIndex, vtxStripGroup->numIndices ) );
size_t offVertex = BYTE_DIFF_PTR( vtxHdr, CHILD_AT( vtxStripGroup, pVertex, 0 ) );
size_t offVertexEnd = BYTE_DIFF_PTR( vtxHdr, CHILD_AT( vtxStripGroup, pVertex, vtxStripGroup->numVerts ) );
if ( offIndex < vtxOffIndexBuffer )
vtxOffIndexBuffer = offIndex;
if ( offIndexEnd > vtxOffIndexBufferEnd )
vtxOffIndexBufferEnd = offIndexEnd;
if ( offVertex < vtxOffVertexBuffer )
vtxOffVertexBuffer = offVertex;
if ( offVertexEnd > vtxOffVertexBufferEnd )
vtxOffVertexBufferEnd = offVertexEnd;
if ( !vtxLod_idx )
{
vtxOffIndex.AddToTail( offIndex );
vtxOffIndex.AddToTail( offIndexEnd );
vtxOffVertex.AddToTail( offVertex );
vtxOffVertex.AddToTail( offVertexEnd );
}
ITERATE_END
ITERATE_END
ITERATE_END
ITERATE_END
ITERATE_END
// Fixup the vertex buffer
DECLARE_PTR( OptimizedModel::Vertex_t, vtxVertexBuffer, BYTE_OFF_PTR( vtxHdr, vtxOffVertexBuffer ) );
DECLARE_PTR( OptimizedModel::Vertex_t, vtxVertexBufferEnd, BYTE_OFF_PTR( vtxHdr, vtxOffVertexBufferEnd ) );
CUtlVector< int > vtxIndexDeltas;
vtxIndexDeltas.EnsureCapacity( vtxVertexBufferEnd - vtxVertexBuffer );
int vtxNumVertexRemoved = 0;
for ( OptimizedModel::Vertex_t *vtxVertexElement = vtxVertexBuffer; vtxVertexElement < vtxVertexBufferEnd; ++ vtxVertexElement )
{
size_t const off = BYTE_DIFF_PTR( vtxHdr, vtxVertexElement );
bool bUsed = false;
for ( int k = 0; k < vtxOffVertex.Count(); k += 2 )
{
if ( off >= vtxOffVertex[ k ] && off < vtxOffVertex[ k + 1 ] )
{
bUsed = true;
break;
}
}
if ( !bUsed )
{
// Index is not in use
vtxRemove.RemoveElements( vtxVertexElement );
vtxIndexDeltas.AddToTail( 0 );
vtxNumVertexRemoved ++;
}
else
{ // Index is in use and must be remapped
// Find the mesh where this index belongs
int iMesh = arrMdlOffsets.FindLessOrEqual( MdlRangeItem( 0, 0, vtxVertexElement - vtxVertexBuffer ) );
Assert( iMesh >= 0 && iMesh < arrMdlOffsets.Count() );
MdlRangeItem &mri = arrMdlOffsets[ iMesh ];
Assert( ( vtxVertexElement - vtxVertexBuffer >= mri.m_offNew ) && ( vtxVertexElement - vtxVertexBuffer < mri.m_offNew + mri.m_numNew ) );
Assert( m_vtxVerts.IsBitSet( vtxVertexElement->origMeshVertID + mri.m_offOld ) );
vtxVertexElement->origMeshVertID = srcIndices.Find( vtxVertexElement->origMeshVertID + mri.m_offOld ) - mri.m_offNew;
Assert( vtxVertexElement->origMeshVertID < mri.m_numNew );
vtxIndexDeltas.AddToTail( vtxNumVertexRemoved );
}
}
// Fixup the index buffer
DECLARE_PTR( unsigned short, vtxIndexBuffer, BYTE_OFF_PTR( vtxHdr, vtxOffIndexBuffer ) );
DECLARE_PTR( unsigned short, vtxIndexBufferEnd, BYTE_OFF_PTR( vtxHdr, vtxOffIndexBufferEnd ) );
for ( unsigned short *vtxIndexElement = vtxIndexBuffer; vtxIndexElement < vtxIndexBufferEnd; ++ vtxIndexElement )
{
size_t const off = BYTE_DIFF_PTR( vtxHdr, vtxIndexElement );
bool bUsed = false;
for ( int k = 0; k < vtxOffIndex.Count(); k += 2 )
{
if ( off >= vtxOffIndex[ k ] && off < vtxOffIndex[ k + 1 ] )
{
bUsed = true;
break;
}
}
if ( !bUsed )
{
// Index is not in use
vtxRemove.RemoveElements( vtxIndexElement );
}
else
{
// Index is in use and must be remapped
*vtxIndexElement -= vtxIndexDeltas[ *vtxIndexElement ];
}
}
// By now should have scheduled all removal information
vtxRemove.Finalize();
DLog( "mdllib", 3, " Stripped %d vtx bytes.\n", vtxRemove.GetNumBytesRemoved() );
//
// Fixup all the offsets
//
ITERATE_CHILDREN( OptimizedModel::MaterialReplacementListHeader_t, vtxMatList, vtxHdr, pMaterialReplacementList, numLODs )
ITERATE_CHILDREN( OptimizedModel::MaterialReplacementHeader_t, vtxMat, vtxMatList, pMaterialReplacement, numReplacements )
vtxMat->replacementMaterialNameOffset = vtxRemove.ComputeOffset( vtxMat, vtxMat->replacementMaterialNameOffset );
ITERATE_END
vtxMatList->replacementOffset = vtxRemove.ComputeOffset( vtxMatList, vtxMatList->replacementOffset );
ITERATE_END
ITERATE_CHILDREN( OptimizedModel::BodyPartHeader_t, vtxBodyPart, vtxHdr, pBodyPart, numBodyParts )
ITERATE_CHILDREN( OptimizedModel::ModelHeader_t, vtxModel, vtxBodyPart, pModel, numModels )
ITERATE_CHILDREN( OptimizedModel::ModelLODHeader_t, vtxLod, vtxModel, pLOD, numLODs )
ITERATE_CHILDREN( OptimizedModel::MeshHeader_t, vtxMesh, vtxLod, pMesh, numMeshes )
ITERATE_CHILDREN( OptimizedModel::StripGroupHeader_t, vtxStripGroup, vtxMesh, pStripGroup, numStripGroups )
ITERATE_CHILDREN( OptimizedModel::StripHeader_t, vtxStrip, vtxStripGroup, pStrip, numStrips )
vtxStrip->indexOffset =
vtxRemove.ComputeOffset( vtxStripGroup, vtxStripGroup->indexOffset + vtxStrip->indexOffset ) -
vtxRemove.ComputeOffset( vtxStripGroup, vtxStripGroup->indexOffset );
vtxStrip->vertOffset =
vtxRemove.ComputeOffset( vtxStripGroup, vtxStripGroup->vertOffset + vtxStrip->vertOffset ) -
vtxRemove.ComputeOffset( vtxStripGroup, vtxStripGroup->vertOffset );
vtxStrip->boneStateChangeOffset = vtxRemove.ComputeOffset( vtxStrip, vtxStrip->boneStateChangeOffset );
ITERATE_END
vtxStripGroup->vertOffset = vtxRemove.ComputeOffset( vtxStripGroup, vtxStripGroup->vertOffset );
vtxStripGroup->indexOffset = vtxRemove.ComputeOffset( vtxStripGroup, vtxStripGroup->indexOffset );
vtxStripGroup->stripOffset = vtxRemove.ComputeOffset( vtxStripGroup, vtxStripGroup->stripOffset );
ITERATE_END
vtxMesh->stripGroupHeaderOffset = vtxRemove.ComputeOffset( vtxMesh, vtxMesh->stripGroupHeaderOffset );
ITERATE_END
vtxLod->meshOffset = vtxRemove.ComputeOffset( vtxLod, vtxLod->meshOffset );
ITERATE_END
vtxModel->lodOffset = vtxRemove.ComputeOffset( vtxModel, vtxModel->lodOffset );
vtxModel->numLODs = 1;
ITERATE_END
vtxBodyPart->modelOffset = vtxRemove.ComputeOffset( vtxBodyPart, vtxBodyPart->modelOffset );
ITERATE_END
vtxHdr->materialReplacementListOffset = vtxRemove.ComputeOffset( vtxHdr, vtxHdr->materialReplacementListOffset );
vtxHdr->bodyPartOffset = vtxRemove.ComputeOffset( vtxHdr, vtxHdr->bodyPartOffset );
vtxHdr->numLODs = 1;
// Perform final memory move
vtxRemove.MemMove( vtxHdr, vtxLength );
vtxBuffer.SeekPut( CUtlBuffer::SEEK_CURRENT, vtxBuffer.TellGet() + vtxLength - vtxBuffer.TellPut() );
return true;
}
//////////////////////////////////////////////////////////////////////////
//
// Auxilliary methods
//
//////////////////////////////////////////////////////////////////////////
void CMdlStripInfo::DeleteThis()
{
delete this;
}
void CMdlStripInfo::Reset()
{
m_eMode = MODE_UNINITIALIZED;
m_lChecksumOld = 0;
m_lChecksumNew = 0;
m_vtxVerts.Resize( 0 );
m_vtxIndices.RemoveAll();
}