/*---------------------------------------------------------------------------*
  Project:  NintendoWare
  File:     gfx_VertexLight.cpp
  
  Copyright (C)2009-2011 Nintendo/HAL Laboratory, Inc.  All rights reserved.
  
  These coded instructions, statements, and computer programs contain proprietary
  information of Nintendo and/or its licensed developers and are protected by
  national and international copyright laws. They may not be disclosed to third
  parties or copied or duplicated in any form, in whole or in part, without the
  prior written consent of Nintendo.
  
  The content herein is highly confidential and should be handled accordingly.
  
  $Revision: 31311 $
 *---------------------------------------------------------------------------*/

#include "precompiled.h"

#include <nw/os/os_Memory.h>

#include <nw/gfx/gfx_VertexLight.h>
#include <nw/gfx/gfx_ISceneVisitor.h>

#include <cstring>

#if defined(NW_GFX_VERTEX_LIGHT_ENABLED)
namespace nw
{
namespace gfx
{

NW_UT_RUNTIME_TYPEINFO_DEFINITION(VertexLight, Light);

//----------------------------------------
VertexLight*
VertexLight::DynamicBuilder::Create(
    os::IAllocator* allocator
)
{
    NW_NULL_ASSERT(allocator);

    // CreateResVertexLight で名前を指定するようにしたら
    // GetMemorySize も修正する必要がある。

    ResPtr resource(
        CreateResVertexLight(allocator),
        ResVertexLightDataDestroyer(allocator));

    void* memory = allocator->Alloc(sizeof(VertexLight));
    NW_NULL_ASSERT(memory);
    VertexLight* light = new(memory) VertexLight(
        allocator,
        resource,
        m_Description);
    
    Result result = light->Initialize(allocator);
    NW_ASSERT(result.IsSuccess());

    return light;
}

//----------------------------------------------------------
size_t
VertexLight::DynamicBuilder::GetMemorySize( size_t alignment ) const
{
    NW_ASSERT(this->m_Description.isFixedSizeMemory);

    os::MemorySizeCalculator size(alignment);

    // VertexLight::CreateResAmbientLight
    size += sizeof(ResVertexLightData);

    size += sizeof(VertexLight);

    // VertexLight::Initialize
    TransformNode::GetMemorySizeForInitialize(
        &size,
        ResTransformNode(),
        m_Description);

    // AmbientLight::CreateOriginalValue
    size += sizeof(ResVertexLightData);

    // Light::CreateAnimGroup
    // DynamicBuilder 使用時には何も行なわれない。

    return size.GetSizeWithPadding(alignment);
}

//----------------------------------------
VertexLight*
VertexLight::Create(
    SceneNode* parent,
    ResSceneObject resource,
    const VertexLight::Description& description,
    os::IAllocator* allocator
)
{
    NW_NULL_ASSERT(allocator);
    
    ResVertexLight resNode = ResDynamicCast<ResVertexLight>(resource);
    NW_ASSERT(resNode.IsValid());
    NW_ASSERT( internal::ResCheckRevision( resNode ) );
    
    void* memory = allocator->Alloc(sizeof(VertexLight));
    NW_NULL_ASSERT(memory);    

    VertexLight* light = new(memory) VertexLight(
        allocator,
        resNode,
        description);

    Result result = light->Initialize(allocator);
    NW_ASSERT(result.IsSuccess());
    
    if (parent)
    {
        bool isAttached = parent->AttachChild(light);
        NW_ASSERT(isAttached);
    }

    return light;
}

//----------------------------------------
void
VertexLight::UpdateDirection()
{
    ResVertexLight resLight = this->GetResVertexLight();

    if (ut::CheckFlag(resLight.GetFlags(), ResFragmentLightData::FLAG_IS_INHERITING_DIRECTION_ROTATE))
    {
        this->CalcInheritingDiretion(this->Direction(), resLight.GetDirection());
    }
    else
    {
        this->Direction() = resLight.GetDirection();
    }
}

//----------------------------------------
void
VertexLight::Accept(
    ISceneVisitor* visitor
)
{
    visitor->VisitVertexLight(this);
    AcceptChildren(visitor);
}


//-----------------------------------------
/* static*/ ResVertexLightData*
VertexLight::CreateResVertexLight(os::IAllocator* allocator, const char* name /* = NULL */)
{
    const int MAX_NAME_LENGTH = 256;
    
    // TODO: 細かくアロケートする実装になっているが、まとめて確保できる仕組みも追加予定。
    ResVertexLightData* resVertexLight =
        AllocateAndFillN<ResVertexLightData>(allocator, sizeof(ResVertexLightData), 0);
    
    //--------------------------------
    // ResSceneObjectData のメンバ初期化
    resVertexLight->typeInfo = ResVertexLight::TYPE_INFO;
    resVertexLight->m_Header.revision = ResLight::BINARY_REVISION;
    resVertexLight->m_Header.signature = ResLight::SIGNATURE;
    
    resVertexLight->m_UserDataDicCount = 0;
    resVertexLight->toUserDataDic.set_ptr( NULL );
    
    resVertexLight->toName.set_ptr(AllocateAndCopyString(name, allocator, MAX_NAME_LENGTH));
    
    //--------------------------------
    // ResSceneNodeData のメンバ初期化
    resVertexLight->m_ChildrenTableCount = 0;
    resVertexLight->toChildrenTable.set_ptr( NULL );
    resVertexLight->m_AnimGroupsDicCount = 0;
    resVertexLight->toAnimGroupsDic.set_ptr( NULL );

    //--------------------------------
    // ResTransformNode のメンバ初期化
    const math::VEC3 scale(1.0f, 1.0f, 1.0f);
    const math::VEC3 rotate(0.0f, 0.0f, 0.0f);
    const math::VEC3 translate(0.0f, 0.0f, 0.0f);
    resVertexLight->m_Transform = math::Transform3(scale, rotate, translate);
    resVertexLight->m_WorldMatrix = math::MTX34::Identity();
    ResTransformNode(resVertexLight).SetBranchVisible(true);

    return resVertexLight;
}


//-----------------------------------------
/* static */ void
VertexLight::DestroyResVertexLight(os::IAllocator* allocator, ResVertexLightData* resVertexLight)
{
    NW_NULL_ASSERT( allocator );
    NW_NULL_ASSERT( resVertexLight );
    
    if ( resVertexLight->toName.to_ptr() != NULL )
    {
        allocator->Free( const_cast<char*>( resVertexLight->toName.to_ptr() ) );
    }
    allocator->Free( resVertexLight );
}


//-----------------------------------------
Result
VertexLight::CreateOriginalValue(os::IAllocator* allocator)
{
    Result result = INITIALIZE_RESULT_OK;

    void* buffer = allocator->Alloc(sizeof(ResVertexLightData));
    NW_NULL_ASSERT(buffer);

    // リソースをコピー
    ResVertexLightData* originalValue = new(buffer) ResVertexLightData(GetResVertexLight().ref());
    m_OriginalValue = ResVertexLight(originalValue);

    m_OriginalTransform = this->GetResTransformNode().GetTransform();

    return result;
}

//----------------------------------------
Result
VertexLight::Initialize(os::IAllocator* allocator)
{
    Result result = INITIALIZE_RESULT_OK;

    result |= TransformNode::Initialize(allocator);
    NW_ENSURE_AND_RETURN(result);
    
    result |= CreateOriginalValue(allocator);
    NW_ENSURE_AND_RETURN(result);

    result |= CreateAnimGroup(allocator);
    NW_ENSURE_AND_RETURN(result);

    return result;
}

//----------------------------------------------------------
void
VertexLight::
GetMemorySizeInternal( 
    os::MemorySizeCalculator* pSize,
    ResVertexLight resVertexLight,
    Description description
)
{
    NW_ASSERT(description.isFixedSizeMemory);

    os::MemorySizeCalculator& size = *pSize;

    size += sizeof(VertexLight);

    // VertexLight::Initialize
    TransformNode::GetMemorySizeForInitialize(
        &size,
        resVertexLight,
        description);

    size += sizeof(ResVertexLightData);

    if (description.isAnimationEnabled &&
        resVertexLight.GetAnimGroupsCount() > 0)
    {
        AnimGroup::Builder()
            .ResAnimGroup(resVertexLight.GetAnimGroups(0))
            .UseOriginalValue(true)
            .GetMemorySizeInternal(&size);
    }
}

} // namespace gfx
} // namespace nw
#endif