1 files changed, 87 insertions, 0 deletions
diff --git a/RenderScript/src/InputLayoutDescParser.cpp b/RenderScript/src/InputLayoutDescParser.cpp
new file mode 100644
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+++ b/RenderScript/src/InputLayoutDescParser.cpp
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+/*     Copyright 2015-2016 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 "pch.h"
+#include "InputLayoutDescParser.h"
+
+namespace Diligent
+{
+    MemberBinder<InputLayoutDesc> :: MemberBinder( size_t InputLayoutOffset, size_t ElementsBufferOffset ) :
+        MemberBinderBase( InputLayoutOffset ),
+        m_LayoutElementsBufferOffset(ElementsBufferOffset)
+    {
+        DEFINE_BINDER( m_Bindings, LayoutElement, InputIndex, Uint32, Validator<Uint32>( "Input Index", 0, 32 ) )
+        DEFINE_BINDER( m_Bindings, LayoutElement, BufferSlot, Uint32, Validator<Uint32>( "Buffer Slot", 0, MaxBufferSlots ) )
+        DEFINE_BINDER( m_Bindings, LayoutElement, NumComponents, Uint32, Validator<Uint32>( "Num Components", 1, 4 ) )
+
+        DEFINE_ENUM_BINDER( m_Bindings, LayoutElement, ValueType, VALUE_TYPE, m_ValueTypeEnumMapping )
+
+        DEFINE_BINDER( m_Bindings, LayoutElement, IsNormalized, Bool, Validator<Bool>() )
+        DEFINE_BINDER( m_Bindings, LayoutElement, RelativeOffset, Uint32, Validator<Uint32>() )
+
+
+        m_FrequencyEnumMapping.AddMapping( "FREQUENCY_PER_VERTEX", LayoutElement::FREQUENCY_PER_VERTEX );
+        m_FrequencyEnumMapping.AddMapping( "FREQUENCY_PER_INSTANCE", LayoutElement::FREQUENCY_PER_INSTANCE );
+        VERIFY( m_FrequencyEnumMapping.m_Str2ValMap.size() == LayoutElement::FREQUENCY_NUM_FREQUENCIES - 1,
+                "Unexpected map size. Did you update LayoutElement::FREQUENCY_PER_VERTEX enum?" );
+        VERIFY( m_FrequencyEnumMapping.m_Val2StrMap.size() == LayoutElement::FREQUENCY_NUM_FREQUENCIES - 1,
+                "Unexpected map size. Did you update LayoutElement::FREQUENCY_PER_VERTEX enum?" );
+        DEFINE_ENUM_BINDER( m_Bindings, LayoutElement, Frequency, LayoutElement::FREQUENCY, m_FrequencyEnumMapping )
+
+        DEFINE_BINDER( m_Bindings, LayoutElement, InstanceDataStepRate, Uint32, Validator<Uint32>() )
+    }
+
+    void MemberBinder<InputLayoutDesc> :: GetValue( lua_State *L, const void* pBasePointer )
+    {
+        // Use raw pointer to push the value to Lua because the buffer
+        // most likely does not exist
+        const auto &InputLayout = GetMemberByOffest<const InputLayoutDesc>(pBasePointer, m_MemberOffset);
+        PushLuaArray( L, InputLayout.LayoutElements, InputLayout.LayoutElements + InputLayout.NumElements, [&]( const LayoutElement &Elem )
+        {
+            PushLuaTable( L, &Elem, m_Bindings );
+        }
+        );
+    }
+
+    void MemberBinder<InputLayoutDesc> :: SetValue( lua_State *L, int Index, void* pBasePointer )
+    {
+        ParseLuaArray( L, Index, pBasePointer, [&]( void* _pBasePointer, int StackIndex, int NewArrayIndex )
+        {
+            VERIFY( pBasePointer == _pBasePointer, "Sanity check failed" );
+            auto &Elements = GetMemberByOffest<std::vector<LayoutElement> >( pBasePointer, m_LayoutElementsBufferOffset);
+            auto CurrIndex = Elements.size();
+            if( CurrIndex != NewArrayIndex - 1 )
+                SCRIPT_PARSING_ERROR( L, "Explicit array indices are not allowed in layout description.  Provided index ", NewArrayIndex - 1, " conflicts with actual index ", CurrIndex, "." );
+            Elements.resize( CurrIndex + 1 );
+            ParseLuaTable( L, StackIndex, &(Elements)[CurrIndex], m_Bindings );
+            if( Elements[CurrIndex].ValueType == VT_UNDEFINED )
+                SCRIPT_PARSING_ERROR( L, "Valid value type must be specified for layout element #", CurrIndex );
+        }
+        );
+
+        auto &ElementsBuffer = GetMemberByOffest<std::vector<LayoutElement> >( pBasePointer, m_LayoutElementsBufferOffset );
+        auto &InputLayout = GetMemberByOffest< InputLayoutDesc >( pBasePointer, m_MemberOffset );
+        InputLayout.LayoutElements = ElementsBuffer.data();
+        InputLayout.NumElements = static_cast<Uint32>( ElementsBuffer.size() );
+    }
+}