Added DXSDK Mesh Loader

1 files changed, 318 insertions, 0 deletions

diff --git a/AssetLoader/src/DXSDKMeshLoader.cpp b/AssetLoader/src/DXSDKMeshLoader.cpp
new file mode 100644
index 0000000..e25b782
--- /dev/null
+++ b/AssetLoader/src/DXSDKMeshLoader.cpp
@@ -0,0 +1,318 @@
+/*     Copyright 2015-2019 Egor Yusov
+ *  
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS.
+ *
+ *  In no event and under no legal theory, whether in tort (including negligence), 
+ *  contract, or otherwise, unless required by applicable law (such as deliberate 
+ *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
+ *  liable for any damages, including any direct, indirect, special, incidental, 
+ *  or consequential damages of any character arising as a result of this License or 
+ *  out of the use or inability to use the software (including but not limited to damages 
+ *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
+ *  all other commercial damages or losses), even if such Contributor has been advised 
+ *  of the possibility of such damages.
+ */
+
+#include "DXSDKMeshLoader.h"
+#include "DataBlobImpl.h"
+#include "RefCntAutoPtr.h"
+#include "FileWrapper.h"
+
+namespace Diligent
+{
+
+
+//--------------------------------------------------------------------------------------
+bool DXSDKMesh::CreateFromFile( const char* szFileName, bool bCreateAdjacencyIndices)
+{
+    FileWrapper File;
+    File.Open(FileOpenAttribs{szFileName});
+    if (!File)
+    {
+        LOG_ERROR("Failed to open SDK Mesh file ", szFileName);
+        return false;
+    }
+
+    RefCntAutoPtr<IDataBlob> pFileData(MakeNewRCObj<DataBlobImpl>()(0));
+    File->Read(pFileData);
+
+    File.Close();
+
+    auto res = CreateFromMemory( reinterpret_cast<Uint8*>(pFileData->GetDataPtr()),
+                                 static_cast<Uint32>(pFileData->GetSize()),
+                                 bCreateAdjacencyIndices,
+                                 false);
+   
+    return res;
+}
+
+
+bool DXSDKMesh::CreateFromMemory( Uint8* pData,
+                                  Uint32 DataUint8s,
+                                  bool   bCreateAdjacencyIndices,
+                                  bool   bCopyStatic )
+{
+    // Set outstanding resources to zero
+    m_NumOutstandingResources = 0;
+
+    m_StaticMeshData.resize(DataUint8s);
+    memcpy(m_StaticMeshData.data(), pData, DataUint8s);
+
+    // Pointer fixup
+    auto* pStaticMeshData = m_StaticMeshData.data();
+    m_pMeshHeader        = reinterpret_cast<DXSDKMESH_HEADER*>              (pStaticMeshData);
+    m_pVertexBufferArray = reinterpret_cast<DXSDKMESH_VERTEX_BUFFER_HEADER*>(pStaticMeshData + m_pMeshHeader->VertexStreamHeadersOffset);
+    m_pIndexBufferArray  = reinterpret_cast<DXSDKMESH_INDEX_BUFFER_HEADER*> (pStaticMeshData + m_pMeshHeader->IndexStreamHeadersOffset);
+    m_pMeshArray         = reinterpret_cast<DXSDKMESH_MESH*>                (pStaticMeshData + m_pMeshHeader->MeshDataOffset);
+    m_pSubsetArray       = reinterpret_cast<DXSDKMESH_SUBSET*>              (pStaticMeshData + m_pMeshHeader->SubsetDataOffset);
+    m_pFrameArray        = reinterpret_cast<DXSDKMESH_FRAME*>               (pStaticMeshData + m_pMeshHeader->FrameDataOffset);
+    m_pMaterialArray     = reinterpret_cast<DXSDKMESH_MATERIAL*>            (pStaticMeshData + m_pMeshHeader->MaterialDataOffset);
+
+    // Setup subsets
+    for( Uint32 i = 0; i < m_pMeshHeader->NumMeshes; i++ )
+    {
+        m_pMeshArray[i].pSubsets         = reinterpret_cast<Uint32*>(pStaticMeshData + m_pMeshArray[i].SubsetOffset);
+        m_pMeshArray[i].pFrameInfluences = reinterpret_cast<Uint32*>(pStaticMeshData + m_pMeshArray[i].FrameInfluenceOffset);
+    }
+
+    // error condition
+    if( m_pMeshHeader->Version != DXSDKMESH_FILE_VERSION )
+    {
+        LOG_ERROR("Unexpected SDK mesh file version");
+        return false;
+    }
+
+    // Setup buffer data pointer
+    Uint8* pBufferData = pData + m_pMeshHeader->HeaderSize + m_pMeshHeader->NonBufferDataSize;
+
+    // Get the start of the buffer data
+    Uint64 BufferDataStart = m_pMeshHeader->HeaderSize + m_pMeshHeader->NonBufferDataSize;
+
+    // Create VBs
+    m_ppVertices.resize(m_pMeshHeader->NumVertexBuffers);
+    for( Uint32 i = 0; i < m_pMeshHeader->NumVertexBuffers; i++ )
+    {
+        Uint8* pVertices = NULL;
+        pVertices = reinterpret_cast<Uint8*>(pBufferData + ( m_pVertexBufferArray[i].DataOffset - BufferDataStart));
+
+        m_ppVertices[i] = pVertices;
+    }
+
+    // Create IBs
+    m_ppIndices.resize(m_pMeshHeader->NumIndexBuffers);
+    for( Uint32 i = 0; i < m_pMeshHeader->NumIndexBuffers; i++ )
+    {
+        Uint8* pIndices = NULL;
+        pIndices = ( Uint8* )( pBufferData + ( m_pIndexBufferArray[i].DataOffset - BufferDataStart ) );
+
+        m_ppIndices[i] = pIndices;
+    }
+
+    return true;
+}
+
+//#define MAX_D3D11_VERTEX_STREAMS D3D11_IA_VERTEX_INPUT_RESOURCE_SLOT_COUNT
+
+//--------------------------------------------------------------------------------------
+DXSDKMesh::~DXSDKMesh()
+{
+    Destroy();
+}
+
+//--------------------------------------------------------------------------------------
+bool DXSDKMesh::Create( const Char* szFileName, bool bCreateAdjacencyIndices )
+{
+    return CreateFromFile( szFileName, bCreateAdjacencyIndices );
+}
+
+//--------------------------------------------------------------------------------------
+bool DXSDKMesh::Create( Uint8* pData, Uint32 DataUint8s, bool bCreateAdjacencyIndices, bool bCopyStatic)
+{
+    return CreateFromMemory( pData, DataUint8s, bCreateAdjacencyIndices, bCopyStatic );
+}
+
+//--------------------------------------------------------------------------------------
+void DXSDKMesh::Destroy()
+{
+    delete[] m_pAdjacencyIndexBufferArray; m_pAdjacencyIndexBufferArray = nullptr;
+
+    m_StaticMeshData.clear();
+    delete[] m_pAnimationData;              m_pAnimationData            = nullptr;
+    delete[] m_pBindPoseFrameMatrices;      m_pBindPoseFrameMatrices    = nullptr;
+    delete[] m_pTransformedFrameMatrices;   m_pTransformedFrameMatrices = nullptr;
+    delete[] m_pWorldPoseFrameMatrices;     m_pWorldPoseFrameMatrices   = nullptr;
+
+    m_ppVertices.clear();
+    m_ppIndices.clear();
+
+    m_pMeshHeader        = nullptr;
+    m_pVertexBufferArray = nullptr;
+    m_pIndexBufferArray  = nullptr;
+    m_pMeshArray         = nullptr;
+    m_pSubsetArray       = nullptr;
+    m_pFrameArray        = nullptr;
+    m_pMaterialArray     = nullptr;
+
+    m_pAnimationHeader    = nullptr;
+    m_pAnimationFrameData = nullptr;
+}
+
+
+//--------------------------------------------------------------------------------------
+PRIMITIVE_TOPOLOGY DXSDKMesh::GetPrimitiveType( DXSDKMESH_PRIMITIVE_TYPE PrimType )
+{
+    switch( PrimType )
+    {
+        case PT_TRIANGLE_LIST:
+            return PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
+            
+        case PT_TRIANGLE_STRIP:
+            return PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP;
+            
+        case PT_LINE_LIST:
+            return PRIMITIVE_TOPOLOGY_LINE_LIST;
+            
+        case PT_LINE_STRIP:
+            return PRIMITIVE_TOPOLOGY_UNDEFINED;
+            
+        case PT_POINT_LIST:
+            return PRIMITIVE_TOPOLOGY_POINT_LIST;
+            
+        case PT_TRIANGLE_LIST_ADJ:
+            UNEXPECTED("Unsupported primitive topolgy type");
+            return PRIMITIVE_TOPOLOGY_UNDEFINED;// PRIMITIVE_TOPOLOGY_TRIANGLELIST_ADJ;
+            
+        case PT_TRIANGLE_STRIP_ADJ:
+            UNEXPECTED("Unsupported primitive topolgy type");
+            return PRIMITIVE_TOPOLOGY_UNDEFINED;// PRIMITIVE_TOPOLOGY_TRIANGLESTRIP_ADJ;
+            
+        case PT_LINE_LIST_ADJ:
+            UNEXPECTED("Unsupported primitive topolgy type");
+            return PRIMITIVE_TOPOLOGY_UNDEFINED;// PRIMITIVE_TOPOLOGY_LINELIST_ADJ;
+            
+        case PT_LINE_STRIP_ADJ:
+            UNEXPECTED("Unsupported primitive topolgy type");
+            return PRIMITIVE_TOPOLOGY_UNDEFINED;// D3D11_PRIMITIVE_TOPOLOGY_LINESTRIP_ADJ;
+            
+        default:
+            UNEXPECTED("Unknown primitive topolgy type");
+            return PRIMITIVE_TOPOLOGY_UNDEFINED;
+    }
+}
+
+//--------------------------------------------------------------------------------------
+VALUE_TYPE DXSDKMesh::GetIBFormat( Uint32 iMesh )
+{
+    switch( m_pIndexBufferArray[ m_pMeshArray[ iMesh ].IndexBuffer ].IndexType )
+    {
+        case IT_16BIT:
+            return VT_UINT16;
+        case IT_32BIT:
+            return VT_UINT32;
+        default:
+            UNEXPECTED("Unexpected IB format");
+            return VT_UINT32;
+    }
+}
+
+//--------------------------------------------------------------------------------------
+Uint32 DXSDKMesh::GetNumMeshes()
+{
+    if( !m_pMeshHeader )
+        return 0;
+    return m_pMeshHeader->NumMeshes;
+}
+
+//--------------------------------------------------------------------------------------
+Uint32 DXSDKMesh::GetNumMaterials()
+{
+    if( !m_pMeshHeader )
+        return 0;
+    return m_pMeshHeader->NumMaterials;
+}
+
+//--------------------------------------------------------------------------------------
+Uint32 DXSDKMesh::GetNumVBs()
+{
+    if( !m_pMeshHeader )
+        return 0;
+    return m_pMeshHeader->NumVertexBuffers;
+}
+
+//--------------------------------------------------------------------------------------
+Uint32 DXSDKMesh::GetNumIBs()
+{
+    if( !m_pMeshHeader )
+        return 0;
+    return m_pMeshHeader->NumIndexBuffers;
+}
+
+//--------------------------------------------------------------------------------------
+Uint8* DXSDKMesh::GetRawVerticesAt( Uint32 iVB )
+{
+    return m_ppVertices[iVB];
+}
+
+//--------------------------------------------------------------------------------------
+Uint8* DXSDKMesh::GetRawIndicesAt( Uint32 iIB )
+{
+    return m_ppIndices[iIB];
+}
+
+//--------------------------------------------------------------------------------------
+DXSDKMESH_MATERIAL* DXSDKMesh::GetMaterial( Uint32 iMaterial )
+{
+    return &m_pMaterialArray[ iMaterial ];
+}
+
+//--------------------------------------------------------------------------------------
+DXSDKMESH_MESH* DXSDKMesh::GetMesh( Uint32 iMesh )
+{
+    return &m_pMeshArray[ iMesh ];
+}
+
+//--------------------------------------------------------------------------------------
+Uint32 DXSDKMesh::GetNumSubsets( Uint32 iMesh )
+{
+    return m_pMeshArray[ iMesh ].NumSubsets;
+}
+
+//--------------------------------------------------------------------------------------
+DXSDKMESH_SUBSET* DXSDKMesh::GetSubset( Uint32 iMesh, Uint32 iSubset )
+{
+    return &m_pSubsetArray[ m_pMeshArray[ iMesh ].pSubsets[iSubset] ];
+}
+
+//--------------------------------------------------------------------------------------
+Uint32 DXSDKMesh::GetVertexStride( Uint32 iMesh, Uint32 iVB )
+{
+    return ( Uint32 )m_pVertexBufferArray[ m_pMeshArray[ iMesh ].VertexBuffers[iVB] ].StrideUint8s;
+}
+
+//--------------------------------------------------------------------------------------
+Uint64 DXSDKMesh::GetNumVertices( Uint32 iMesh, Uint32 iVB )
+{
+    return m_pVertexBufferArray[ m_pMeshArray[ iMesh ].VertexBuffers[iVB] ].NumVertices;
+}
+
+//--------------------------------------------------------------------------------------
+Uint64 DXSDKMesh::GetNumIndices( Uint32 iMesh )
+{
+    return m_pIndexBufferArray[ m_pMeshArray[ iMesh ].IndexBuffer ].NumIndices;
+}
+
+DXSDKMESH_INDEX_TYPE DXSDKMesh::GetIndexType( Uint32 iMesh )
+{
+    return ( DXSDKMESH_INDEX_TYPE ) m_pIndexBufferArray[m_pMeshArray[ iMesh ].IndexBuffer].IndexType;
+}
+
+
+}
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