/*---------------------------------------------------------------------------*
  Project:  NintendoWare
  File:     lyt_TextureContainer.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: 27719 $
 *---------------------------------------------------------------------------*/

#include "precompiled.h"

#include <nw/lyt/lyt_Layout.h>
#include <nw/lyt/lyt_TextureContainer.h>
#include <nw/lyt/lyt_Util.h>

namespace nw
{
namespace lyt
{

TextureRefLink::TextureRefLink()
{
    m_Name[0] = '\0';
}

TextureRefLink::~TextureRefLink()
{
    GLuint texName = m_TexInfo.GetTextureObject();
    if (texName != m_TexInfo.INVALID)
    {
        glDeleteTextures(1, &texName);
    }
}

void
TextureRefLink::Set(
    const char* name,
    const TextureInfo& texInfo)
{
    NW_NULL_ASSERT(name);

    // TODO: バイナリコンバータでファイル名の長さをチェックする。
    ut::strcpy(m_Name, sizeof(m_Name), name);
    m_TexInfo = texInfo;
}

TextureContainer::~TextureContainer()
{
    this->Finalize();
}

void
TextureContainer::Finalize()
{
    while (!this->empty())
    {
        TextureRefLink* pLink = &this->front();
        this->erase(pLink);
        Layout::DeleteObj(pLink);
    }
}

const TextureInfo
TextureContainer::FindTextureByName(const char* name)
{
    for (Iterator it = this->GetBeginIter(); it != this->GetEndIter(); ++it)
    {
        if (0 == std::strcmp(name, it->GetResourceName()))
        {
            return it->GetTextureInfo();
        }
    }

    return TextureInfo();
}

const TextureInfo
TextureContainer::FindTextureByKey(TextureKey key)
{
    NW_NULL_ASSERT(key);
    TextureRefLink* pLink = (TextureRefLink*)(key);

    for (Iterator it = this->GetBeginIter(); it != this->GetEndIter(); ++it)
    {
        if (&(*it) == pLink)
        {
            return it->GetTextureInfo();
        }
    }

    return TextureInfo();
}

TextureKey
TextureContainer::RegistTexture(const char* name, const TextureInfo& textureInfo)
{
    NW_ASSERT(name);

    TextureRefLink* pLink = Layout::NewObj<TextureRefLink>();
    if (pLink == NULL)
    {
        return NULL;
    }

    pLink->Set(name, textureInfo);

    this->push_back(pLink);

    return (TextureKey) pLink;
}

void
TextureContainer::UnregistTexture(TextureKey key)
{
    NW_NULL_ASSERT(key);

    TextureRefLink* pLink = (TextureRefLink*)(key);
    this->erase(pLink);
    Layout::DeleteObj(pLink);
}

} // namespace nw::lyt
} // namespace nw