/*---------------------------------------------------------------------------*
  Project:  NintendoWare
  File:     gfx_ResLookupTable.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: $
 *---------------------------------------------------------------------------*/

#include "../precompiled.h"

#include <nw/gfx/res/gfx_ResLookupTable.h>

namespace nw {
namespace gfx {
namespace res {

typedef void (*ActivateFunc)(ResTexture resTex, RenderContext& context);
typedef void (*CleanupFunc)(ResLookupTable resLut);
typedef Result (*SetupFunc)(ResLookupTable resLut);

static void ResImageLut_Cleanup(ResLookupTable resLut);
static void ResReferenceLut_Cleanup(ResLookupTable resLut);

static Result ResImageLut_Setup(ResLookupTable resLut);
static Result ResReferenceLut_Setup(ResLookupTable resLut);

static SetupFunc s_LutSetupTable[] = 
{
    ResImageLut_Setup,
    ResReferenceLut_Setup
};

static CleanupFunc s_LutCleanupTable[] = 
{
    ResImageLut_Cleanup,
    ResReferenceLut_Cleanup
};

//----------------------------------------
static Result
ResImageLut_Setup(ResLookupTable resLut)
{
    Result result = RESOURCE_RESULT_OK;

    NW_UNUSED_VARIABLE(resLut);

    return result;
}


//----------------------------------------
static Result
ResReferenceLut_Setup(ResLookupTable resLut)
{
    Result result = RESOURCE_RESULT_OK;

    result |= ResImageLut_Setup(resLut.Dereference());

    return result;
}

//----------------------------------------
static void
ResImageLut_Cleanup(ResLookupTable resLut)
{
    ResImageLookupTable imageLut = ResStaticCast<ResImageLookupTable>( resLut );
    
    GraphicsDevice::InvalidateLookupTable(imageLut);
}


//----------------------------------------
static void
ResReferenceLut_Cleanup(ResLookupTable resLut)
{
    ResReferenceLookupTable referLut = ResStaticCast<ResReferenceLookupTable>( resLut );
    NW_ASSERT(resLut.IsValid());

    referLut.ref().toTargetLut.set_ptr(NULL);
}

//----------------------------------------------------------------------------
Result 
ResLookupTable::Setup()
{
    NW_ASSERT( this->IsValid() );
    
    Result result = RESOURCE_RESULT_OK;

    switch ( this->ref().typeInfo )
    {
    case ResImageLookupTable::TYPE_INFO:
        {
            result |= s_LutSetupTable[0]( *this );
        }
        break;
    case ResReferenceLookupTable::TYPE_INFO:
        {
            result |= s_LutSetupTable[1]( *this );
        }
        break;
    default:
        {
            NW_FATAL_ERROR("Unsupported lut type.");
        }
    }

    return result;
}

//----------------------------------------
void
ResLookupTable::Cleanup()
{
    switch ( this->ref().typeInfo )
    {
    case ResImageLookupTable::TYPE_INFO:
        {
            s_LutCleanupTable[0]( *this );
        }
        break;
    case ResReferenceLookupTable::TYPE_INFO:
        {
            s_LutCleanupTable[1]( *this );
        }
        break;
    default:
        {
            NW_FATAL_ERROR("Unsupported lut type.");
        }
    }
}

//----------------------------------------
void
ResReferenceLookupTable::ForceSetup(ResLookupTable lut)
{
    NW_ASSERT(lut.IsValid());
    ref().toTargetLut.set_ptr(lut.ptr());

    ResReferenceLut_Setup(*this);
}

//----------------------------------------
void
ResReferenceLookupTable::ForceSetup(const char* targetName, ResLookupTable lut)
{
    NW_NULL_ASSERT(targetName);
    if (std::strcmp(targetName, this->GetPath()) == 0)
    {
        this->ForceSetup(lut);
    }
}
//----------------------------------------
Result
ResLookupTableSet::Setup(os::IAllocator* allocator, ResGraphicsFile graphicsFile)
{
    NW_UNUSED_VARIABLE(allocator);
    NW_UNUSED_VARIABLE(graphicsFile);
    NW_ASSERT( internal::ResCheckRevision( *this ) );

    Result result = RESOURCE_RESULT_OK;

    s32 samplerNum = this->GetSamplersCount();
    for ( int i = 0; i < samplerNum; ++i )
    {
        result |= this->GetSamplers( i ).Setup();
    }

    return result;
}

//----------------------------------------
void
ResLookupTableSet::Cleanup()
{
    ut::SafeCleanupAll(this->GetSamplers());
}

} /* namespace res */
} /* namespace gfx */
} /* namespace nw */