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

  Copyright (C)2009-2010 Nintendo Co., Ltd./HAL Laboratory, Inc.  All rights reserved.

  These coded instructions, statements, and computer programs contain
  proprietary information of Nintendo of America Inc. and/or Nintendo
  Company Ltd., and are protected by Federal copyright law.  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.

  $Revision: 17861 $
 *---------------------------------------------------------------------------*/

#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)
{
    NW_UNUSED_VARIABLE(resLut);
    NW_ASSERT(resLut.IsValid());
}

//----------------------------------------------------------------------------
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.");
        }
    }
}

//----------------------------------------
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 */