/* 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 "EGLWindowSurface.h"

#include "EGLConfig.h"

#include "ColorDescriptor.h"

#include "EGLOs.h"

// \todo Use new[]/free[] instead?

#include <stdlib.h>

CEGLWindowSurface::CEGLWindowSurface() :

    CEGLSurface( CEGLSurface::WINDOW_SURFACE,

                 0,

                 0,

                 0,

                 NULL ),

    m_buffer0( NULL ),

    m_buffer1( NULL ),

    m_currentBuffer( NULL ),

    m_swapInterval( 1 ),

    m_osContext( NULL )

    {

    }

CEGLWindowSurface::CEGLWindowSurface( CEGLConfig* config, EGLint colorSpace, EGLint alphaFormat, EGLint renderBuffer, EGLIOsWindowContext* osContext) :

    CEGLSurface( CEGLSurface::WINDOW_SURFACE,

                 colorSpace,

                 alphaFormat,

                 renderBuffer,

                 config ),

    m_buffer0( NULL ),

    m_buffer1( NULL ),

    m_currentBuffer( NULL ),

    m_swapInterval( 1 ),

    m_osContext( osContext )

    {

    EGLI_ASSERT( m_osContext != NULL );

    }

CEGLWindowSurface::~CEGLWindowSurface(void)

    {

#if !defined(EGLI_USE_PLATSIM_EXTENSIONS)

    if( m_currentBuffer ) free( m_currentBuffer );

#endif

    if( m_osContext )

        CEGLOs::DestroyOSWindowContext( m_osContext );

    }

void* CEGLWindowSurface::CurrentBuffer()

    {

#if defined(EGLI_USE_PLATSIM_EXTENSIONS)

    m_currentBuffer = (m_currentBuffer && m_currentBuffer == m_buffer0) ? m_buffer1 : m_buffer0;

    EGLI_ASSERT( m_currentBuffer != NULL );

    return m_currentBuffer;

#else

    if( !m_currentBuffer || m_osContext->width != Width() || m_osContext->height != Height() )

        {

        if( m_currentBuffer ) free( m_currentBuffer );

        m_currentBuffer = malloc(m_height*m_stride);

        }

    return m_currentBuffer;//NULL;

#endif

    }

void CEGLWindowSurface::SetSwapInterval( EGLint interval )

    {

    // \todo MIN, MAX

    m_swapInterval = interval;

    }

void CEGLWindowSurface::SetOsContext( EGLIOsWindowContext* osContext ) 

    {

    if( m_osContext )

        CEGLOs::DestroyOSWindowContext( m_osContext );

    m_osContext = osContext;

    }