Release v1.0.0

1 files changed, 151 insertions, 0 deletions

diff --git a/RenderScript/src/LayoutDescParser.cpp b/RenderScript/src/LayoutDescParser.cpp
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+++ b/RenderScript/src/LayoutDescParser.cpp
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+/*     Copyright 2015 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 "LayoutDescParser.h"
+
+namespace std 
+{
+    DEFINE_ENUM_HASH( Diligent::LayoutElement::FREQUENCY )
+}
+
+namespace Diligent
+{
+    const Char* LayoutDescParser::LayoutDescLibName = "LayoutDesc";
+
+    class LayoutElementLoader; // Used only as a template switch
+
+    template<>
+    class MemberBinder<LayoutElementLoader> : public MemberBinderBase
+    {
+    public:
+        MemberBinder( size_t LayoutElementsOffset, size_t ElementsBufferOffset, size_t NumElementsOffset ) :
+            MemberBinderBase( ElementsBufferOffset ),
+            m_LayoutElementsOffset(LayoutElementsOffset),
+            m_NumElementsOffset(NumElementsOffset)
+        {
+            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>() )
+        }
+
+        virtual void 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 *Elements = GetMemberByOffest<const LayoutElement*>(pBasePointer, m_LayoutElementsOffset);
+            const auto &NumElements = GetMemberByOffest< Uint32 >( pBasePointer, m_NumElementsOffset );
+            PushLuaArray( L, Elements, Elements + NumElements, [&]( const LayoutElement &Elem )
+            {
+                PushLuaTable( L, &Elem, m_Bindings );
+            }
+            );
+        }
+
+        virtual void 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_MemberOffset );
+                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_MemberOffset );
+            auto &LayoutElements = GetMemberByOffest< LayoutElement* >( pBasePointer, m_LayoutElementsOffset );
+            auto &NumElements = GetMemberByOffest< Uint32 >( pBasePointer, m_NumElementsOffset );
+            LayoutElements = ElementsBuffer.data();
+            NumElements = static_cast<Uint32>( ElementsBuffer.size() );
+        }
+    private:
+        BindingsMapType m_Bindings;
+        ValueTypeEnumMapping m_ValueTypeEnumMapping;
+        EnumMapping < LayoutElement::FREQUENCY > m_FrequencyEnumMapping;
+        size_t m_LayoutElementsOffset;
+        size_t m_NumElementsOffset;
+    };
+
+    LayoutDescParser::LayoutDescParser( IRenderDevice *pRenderDevice, lua_State *L ) :
+        EngineObjectParserCommon<IVertexDescription>( pRenderDevice, L, LayoutDescLibName ),
+        m_SetInputLayoutBinding( this, L, "Context", "SetInputLayout", &LayoutDescParser::SetInputLayout )
+    {
+        DEFINE_BUFFERED_STRING_BINDER( m_Bindings, LayoutDescWrapper, Name, NameBuffer )
+
+        auto *pLayoutElemBinder = 
+            new MemberBinder<LayoutElementLoader>( 
+                offsetof(LayoutDescWrapper, LayoutElements), 
+                offsetof(LayoutDescWrapper, ElementsBuffer), 
+                offsetof(LayoutDescWrapper, NumElements) 
+            );
+        m_Bindings.insert( std::make_pair( "LayoutElements", std::unique_ptr<MemberBinderBase>(pLayoutElemBinder) ) );
+    };
+
+    void LayoutDescParser::CreateObj( lua_State *L )
+    {
+        INIT_LUA_STACK_TRACKING( L );
+
+        LayoutDescWrapper LayoutDesc;
+        ParseLuaTable( L, -2, &LayoutDesc, m_Bindings );
+        CHECK_LUA_STACK_HEIGHT();
+
+        auto ppVertexShader = GetUserData<IShader**>( L, -1, "Metatables.Shader" );
+        auto ppVertDesc = reinterpret_cast<IVertexDescription**>(lua_newuserdata( L, sizeof( IVertexDescription* ) ));
+        *ppVertDesc = nullptr;
+        m_pRenderDevice->CreateVertexDescription( LayoutDesc, *ppVertexShader, ppVertDesc );
+        if( *ppVertDesc == nullptr )
+            SCRIPT_PARSING_ERROR(L, "Failed to create vertex description")
+
+        CHECK_LUA_STACK_HEIGHT( +1 );
+    }
+
+    int LayoutDescParser::SetInputLayout( lua_State *L )
+    {
+        auto pVertDesc = *GetUserData<IVertexDescription**>( L, 1, m_MetatableRegistryName.c_str() );
+        auto *pContext = LoadDeviceContextFromRegistry( L );
+        pContext->SetVertexDescription( pVertDesc );
+        return 0;
+    }
+}