/*---------------------------------------------------------------------------*
  Project:  NintendoWare
  File:     SmCommandUtility.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 <nn/os.h>

#include <nw/types.h>
#include <nw/ut.h>

#include "../include/SmCommandUtility.h"

GLuint SmStaticCommandCache::m_StaticCommandList = 0;

SmStaticCommandCache* s_StaticCmdCache = NULL;

namespace
{

//----------------------------------------
// コンストラクタ
SmStaticCommandCache::SmStaticCommandCache()
{
    #define STATIC_CMD_BUFFER_SIZE  0x50000
    
    NW_ASSERT( !s_StaticCmdCache );

    // 現在バインドされているコマンドリスト
    GLint   currentCmdList;
    nngxGetCmdlistParameteri( NN_GX_CMDLIST_BINDING, &currentCmdList );

    // コマンドリストを生成
    nngxGenCmdlists( 1, &m_StaticCommandList );
    nngxBindCmdlist( m_StaticCommandList );
    nngxCmdlistStorage( STATIC_CMD_BUFFER_SIZE, 256 );
    nngxSetCmdlistParameteri(NN_GX_CMDLIST_RUN_MODE, NN_GX_CMDLIST_SERIAL_RUN);

    // 戻す
    nngxBindCmdlist( currentCmdList );

    s_StaticCmdCache = this;
}


//----------------------------------------
// デストラクタ 
SmStaticCommandCache::~SmStaticCommandCache()
{
    nngxDeleteCmdlists( 1, &m_StaticCommandList );

    s_StaticCmdCache = NULL;
}


//----------------------------------------
// 
void SmStaticCommandCache::StartStaticCmdCache( SmCommandReuser& cmdReuser )
{
    cmdReuser.StartCaching( m_StaticCommandList );
    NW_GL_ASSERT();
}


//----------------------------------------
// 
void SmStaticCommandCache::EndStaticCmdCache( SmCommandReuser& cmdReuser )
{
    cmdReuser.EndCaching();
    NW_GL_ASSERT();
}




//----------------------------------------
//
void SmStaticCommandCache::CreateCopiedCmdCache( CopiedCmdCache& cmdCacheCopied  )
{
    GLsizei buffSize;
    GLsizei reqSize;
    GLsizei copiedBuffSize;

    // 現在バインドされているコマンドリストをストア
    GLint currentCmdList;
    nngxGetCmdlistParameteri( NN_GX_CMDLIST_BINDING, &currentCmdList );
    nngxBindCmdlist( m_StaticCommandList );

    nngxGetCmdlistParameteri( NN_GX_CMDLIST_USED_BUFSIZE, &buffSize );
    nngxGetCmdlistParameteri( NN_GX_CMDLIST_USED_REQCOUNT, &reqSize );

    copiedBuffSize = nngxExportCmdlist(     m_StaticCommandList, 
                                            0,
                                            buffSize,
                                            0,
                                            reqSize,
                                            0,
                                            0 );
    NW_GL_ASSERT();

    if ( !cmdCacheCopied.cmdBuff )
    {
        cmdCacheCopied.cmdBuff       = m_Allocator->Alloc( copiedBuffSize );
        cmdCacheCopied.cmdBuffSize   = copiedBuffSize;

        nngxExportCmdlist(  m_StaticCommandList, 
                            0,
                            buffSize,
                            0,
                            reqSize,
                            copiedBuffSize,
                            cmdCacheCopied.cmdBuff );
    }


    // 戻す
    nngxBindCmdlist( currentCmdList );

    NW_GL_ASSERT();
}


//----------------------------------------
// 
void SmStaticCommandCache::DestroyCopiedCmdCache( CopiedCmdCache& cmdCacheCopied )
{
    nw::os::SafeFree( cmdCacheCopied.cmdBuff, m_Allocator );
}

//----------------------------------------
// 
void SmStaticCommandCache::UseCopiedCmdCache( CopiedCmdCache& cmdCacheCopied )
{
    // 現在バインドされているコマンドリストをストア
    GLint currentCmdList;
    nngxGetCmdlistParameteri( NN_GX_CMDLIST_BINDING, &currentCmdList );

    // インポート
    nngxImportCmdlist( currentCmdList, cmdCacheCopied.cmdBuff, cmdCacheCopied.cmdBuffSize );
    NW_GL_ASSERT();
}



} // namespace