/* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and /or associated documentation files

 * (the "Materials "), to deal in the Materials without restriction,

 * including without limitation the rights to use, copy, modify, merge,

 * publish, distribute, sublicense, and/or sell copies of the Materials,

 * and to permit persons to whom the Materials are furnished to do so,

 * subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included

 * in all copies or substantial portions of the Materials.

 *

 * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,

 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR

 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR

 * THE USE OR OTHER DEALINGS IN THE MATERIALS.

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description:

 *

 */

#include "EGLThread.h"

#include "EGLContext.h"

#include "EGLSurface.h"

CEGLThread::CEGLThread( EGLI_THREAD_ID threadId, EGLint supportedApis ) :

    m_id( threadId ),

    m_currentVGContext( NULL ),

    m_currentVGSurface( NULL ),

    m_currentGLESContext( NULL ),

	m_currentGLESReadSurface( NULL ),

    m_currentGLESDrawSurface( NULL ),

    m_currentApi( EGL_OPENGL_ES_API ),

    m_lastError( EGL_SUCCESS ),

    m_supportedApis( supportedApis )

    {

    }

CEGLThread::~CEGLThread(void)

    {

    }

bool CEGLThread::IsSupportedApi( EGLenum api ) const

    {

    bool ret = false;

    switch( api )

        {

        case EGL_OPENVG_API:

            {

            if( m_supportedApis & EGL_OPENVG_BIT )

                ret = true;

            break;

            }

        case EGL_OPENGL_ES_API:

            {

            if( m_supportedApis & EGL_OPENGL_ES_BIT ||

                m_supportedApis & EGL_OPENGL_ES2_BIT )

                ret = true;

            break;

            }

        }

    return ret;

    }

CEGLContext* CEGLThread::SwitchVGContext( CEGLContext* vgContext )

    {

    CEGLContext* ret = m_currentVGContext;

    if( vgContext != m_currentVGContext )

        {

        m_currentVGContext = vgContext;

        if( vgContext ) vgContext->SetThread( this );

        if( ret ) ret->SetThread( NULL );

        }

    return ret;

    }

CEGLSurface* CEGLThread::SwitchVGSurface( CEGLSurface* vgSurface )

    {

    CEGLSurface* ret = m_currentVGSurface;

    if( vgSurface != m_currentVGSurface )

        {

        m_currentVGSurface = vgSurface;

        if( vgSurface ) vgSurface->SetThread( this );

        if( ret ) ret->SetThread( NULL );

        }

    return ret;

    }

CEGLContext* CEGLThread::SwitchGLESContext( CEGLContext* glesContext )

    {

    CEGLContext* ret = m_currentGLESContext;

    if( glesContext != m_currentGLESContext )

        {

        m_currentGLESContext = glesContext;

        if( glesContext ) glesContext->SetThread( this );

        if( ret ) ret->SetThread( NULL );

        }

    return ret;

    }

void CEGLThread::SwitchGLESSurfaces( CEGLSurface* read, CEGLSurface* draw, CEGLSurface*& previousRead, CEGLSurface*& previousDraw )

    {

    previousRead = m_currentGLESReadSurface;

    previousDraw = m_currentGLESDrawSurface;

    m_currentGLESReadSurface = read;

    if( read ) read->SetThread( this );

    if( previousRead && previousRead != read ) previousRead->SetThread( NULL );

    m_currentGLESDrawSurface = draw;

    if( draw ) draw->SetThread( this );

    if( previousDraw && previousDraw != draw ) previousDraw->SetThread( NULL );

    }

void CEGLThread::CurrentGLESSurfaces( CEGLSurface** read, CEGLSurface** draw ) const

    {

    if( read ) *read = m_currentGLESReadSurface;

    if( draw ) *draw = m_currentGLESDrawSurface;

    }