1HEADmaster

1 files changed, 166 insertions, 0 deletions

diff --git a/studiorender/r_studiogettriangles.cpp b/studiorender/r_studiogettriangles.cpp
new file mode 100644
index 0000000..afb96d4
--- /dev/null
+++ b/studiorender/r_studiogettriangles.cpp
@@ -0,0 +1,166 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//===========================================================================//
+
+#include "studiorendercontext.h"
+#include "optimize.h"
+#include "tier0/vprof.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+void CStudioRenderContext::GetTriangles( const DrawModelInfo_t& info, matrix3x4_t *pBoneToWorld, GetTriangles_Output_t &out )
+{
+	VPROF( "CStudioRender::GetTriangles");
+
+	out.m_MaterialBatches.RemoveAll(); // clear out data.
+
+	if( !info.m_pStudioHdr || !info.m_pHardwareData || 
+		!info.m_pHardwareData->m_NumLODs || !info.m_pHardwareData->m_pLODs )
+	{
+		return;
+	} 
+
+	int lod = info.m_Lod;
+	int lastlod = info.m_pHardwareData->m_NumLODs - 1;
+
+	if ( lod == USESHADOWLOD )
+	{
+		lod = lastlod;
+	} 
+	else
+	{
+		lod = clamp( lod, 0, lastlod );
+	}
+
+	// clamp to root lod
+	if ( lod < info.m_pHardwareData->m_RootLOD)
+	{
+		lod = info.m_pHardwareData->m_RootLOD;
+	}
+
+	int nSkin = info.m_Skin;
+	if ( nSkin >= info.m_pStudioHdr->numskinfamilies )
+	{
+		nSkin = 0;
+	}
+	short *pSkinRef	= info.m_pStudioHdr->pSkinref( nSkin * info.m_pStudioHdr->numskinref );
+
+	studiomeshdata_t *pStudioMeshes = info.m_pHardwareData->m_pLODs[lod].m_pMeshData;
+	IMaterial **ppMaterials = info.m_pHardwareData->m_pLODs[lod].ppMaterials;
+
+	// Bone to world must be set before calling this function; it uses it here
+	int boneMask = BONE_USED_BY_VERTEX_AT_LOD(lod);
+	ComputePoseToWorld( out.m_PoseToWorld, info.m_pStudioHdr, boneMask, m_RC.m_ViewOrigin, pBoneToWorld );
+
+	int i;
+	for (i=0 ; i < info.m_pStudioHdr->numbodyparts ; i++) 
+	{
+		mstudiomodel_t *pModel = NULL;
+		R_StudioSetupModel( i, info.m_Body, &pModel, info.m_pStudioHdr );
+
+		// Iterate over all the meshes.... each mesh is a new material
+		int k;
+		for ( k = 0; k < pModel->nummeshes; ++k )
+		{
+			GetTriangles_MaterialBatch_t &materialBatch = out.m_MaterialBatches[out.m_MaterialBatches.AddToTail()];
+			mstudiomesh_t *pMesh = pModel->pMesh(k);
+
+			if ( !pModel->CacheVertexData( info.m_pStudioHdr ) )
+			{
+				// not available yet
+				continue;
+			}
+			const mstudio_meshvertexdata_t *vertData = pMesh->GetVertexData( info.m_pStudioHdr );
+			Assert( vertData ); // This can only return NULL on X360 for now
+
+			// add the verts from this mesh to the materialBatch
+			materialBatch.m_Verts.SetCount( pMesh->numvertices );
+			for ( int vertID = 0; vertID < pMesh->numvertices; vertID++ )
+			{
+				GetTriangles_Vertex_t& vert = materialBatch.m_Verts[vertID];
+
+				vert.m_Position = *vertData->Position( vertID );
+				vert.m_Normal   = *vertData->Normal( vertID );
+				vert.m_TexCoord = *vertData->Texcoord( vertID );
+
+				if (vertData->HasTangentData())
+				{
+					vert.m_TangentS = *vertData->TangentS( vertID );
+				}
+#if _DEBUG
+				else
+				{
+					// ensure any unintended access faults
+					vert.m_TangentS.Init( VEC_T_NAN, VEC_T_NAN, VEC_T_NAN, VEC_T_NAN );
+				}
+#endif				
+				vert.m_NumBones = vertData->BoneWeights( vertID )->numbones;
+				int j;
+				for ( j = 0; j < vert.m_NumBones; j++ )
+				{
+					vert.m_BoneWeight[j] = vertData->BoneWeights( vertID )->weight[j];
+					vert.m_BoneIndex[j] = vertData->BoneWeights( vertID )->bone[j];
+				}
+			}
+
+			IMaterial *pMaterial = ppMaterials[pSkinRef[pMesh->material]];
+			Assert( pMaterial );
+			materialBatch.m_pMaterial = pMaterial;
+			studiomeshdata_t *pMeshData = &pStudioMeshes[pMesh->meshid];
+			if ( pMeshData->m_NumGroup == 0 )
+				continue;
+
+			// Clear out indices
+			materialBatch.m_TriListIndices.SetCount( 0 );
+
+			// Iterate over all stripgroups
+			int stripGroupID;
+			for ( stripGroupID = 0; stripGroupID < pMeshData->m_NumGroup; stripGroupID++ )
+			{
+				studiomeshgroup_t *pMeshGroup = &pMeshData->m_pMeshGroup[stripGroupID];
+//				bool bIsFlexed = ( pMeshGroup->m_Flags & MESHGROUP_IS_FLEXED ) != 0;
+//				bool bIsHWSkinned = ( pMeshGroup->m_Flags & MESHGROUP_IS_HWSKINNED ) != 0;
+				
+				// Iterate over all strips. . . each strip potentially changes bones states.
+				int stripID;
+				for ( stripID = 0; stripID < pMeshGroup->m_NumStrips; stripID++ )
+				{
+					OptimizedModel::StripHeader_t *pStripData = &pMeshGroup->m_pStripData[stripID];
+//					int boneID;
+//					for( boneID = 0; boneID < pStripData->numBoneStateChanges; boneID++ )
+//					{
+//						OptimizedModel::BoneStateChangeHeader_t *pBoneStateChange = pStripData->pBoneStateChange( boneID );
+//						hardwareBoneToGlobalBone[pBoneStateChange->hardwareID] = pBoneStateChange->newBoneID;
+//					}
+					if ( pStripData->flags & OptimizedModel::STRIP_IS_TRILIST )
+					{
+						for ( int i = 0; i < pStripData->numIndices; i += 3 )
+						{
+							int idx = pStripData->indexOffset + i;
+							materialBatch.m_TriListIndices.AddToTail( pMeshGroup->MeshIndex( idx ) );
+							materialBatch.m_TriListIndices.AddToTail( pMeshGroup->MeshIndex( idx + 1 ) );
+							materialBatch.m_TriListIndices.AddToTail( pMeshGroup->MeshIndex( idx + 2 ) );
+						}
+					}
+					else
+					{
+						Assert( pStripData->flags & OptimizedModel::STRIP_IS_TRISTRIP );
+						for (int i = 0; i < pStripData->numIndices - 2; ++i)
+						{
+							int idx = pStripData->indexOffset + i;
+							bool ccw = (i & 0x1) == 0;
+							materialBatch.m_TriListIndices.AddToTail( pMeshGroup->MeshIndex( idx ) );
+							materialBatch.m_TriListIndices.AddToTail( pMeshGroup->MeshIndex( idx + 1 + ccw ) );
+							materialBatch.m_TriListIndices.AddToTail( pMeshGroup->MeshIndex( idx + 2 - ccw ) );
+						}
+					}
+				}
+			}
+		}
+	}
+}