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

     2  *

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

     4  * copy of this software and /or associated documentation files

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

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

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

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

     9  * subject to the following conditions:

    10  *

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

    12  * in all copies or substantial portions of the Materials.

    13  *

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

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

    16  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

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

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

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

    20  * THE USE OR OTHER DEALINGS IN THE MATERIALS.

    21  *

    22  * Initial Contributors:

    23  * Nokia Corporation - initial contribution.

    24  *

    25  * Contributors:

    26  *

    27  * Description:

    28  *

    29  */

    30 

    31 #include "EGLWindowSurface.h"

    32 #include "EGLConfig.h"

    33 #include "ColorDescriptor.h"

    34 #include "EGLOs.h"

    35 

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

    37 #include <stdlib.h>

    38 

    39 CEGLWindowSurface::CEGLWindowSurface() :

    40     CEGLSurface( CEGLSurface::WINDOW_SURFACE,

    41                  0,

    42                  0,

    43                  0,

    44                  NULL ),

    45     m_buffer0( NULL ),

    46     m_buffer1( NULL ),

    47     m_currentBuffer( NULL ),

    48     m_swapInterval( 1 ),

    49     m_osContext( NULL )

    50     {

    51     }

    52 

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

    54     CEGLSurface( CEGLSurface::WINDOW_SURFACE,

    55                  colorSpace,

    56                  alphaFormat,

    57                  renderBuffer,

    58                  config ),

    59     m_buffer0( NULL ),

    60     m_buffer1( NULL ),

    61     m_currentBuffer( NULL ),

    62     m_swapInterval( 1 ),

    63     m_osContext( osContext )

    64     {

    65     EGLI_ASSERT( m_osContext != NULL );

    66     }

    67 

    68 CEGLWindowSurface::~CEGLWindowSurface(void)

    69     {

    70 #if !defined(EGLI_USE_PLATSIM_EXTENSIONS)

    71     if( m_currentBuffer ) free( m_currentBuffer );

    72 #endif

    73     if( m_osContext )

    74         CEGLOs::DestroyOSWindowContext( m_osContext );

    75     }

    76 

    77 void* CEGLWindowSurface::CurrentBuffer()

    78     {

    79 #if defined(EGLI_USE_PLATSIM_EXTENSIONS)

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

    81     EGLI_ASSERT( m_currentBuffer != NULL );

    82     return m_currentBuffer;

    83 #else

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

    85         {

    86         if( m_currentBuffer ) free( m_currentBuffer );

    87         m_currentBuffer = malloc(m_height*m_stride);

    88         }

    89     return m_currentBuffer;//NULL;

    90 #endif

    91     }

    92 

    93 void CEGLWindowSurface::SetSwapInterval( EGLint interval )

    94     {

    95     // \todo MIN, MAX

    96     m_swapInterval = interval;

    97     }

    98 

    99 void CEGLWindowSurface::SetOsContext( EGLIOsWindowContext* osContext ) 

   100     {

   101     if( m_osContext )

   102         CEGLOs::DestroyOSWindowContext( m_osContext );

   103     m_osContext = osContext;

   104     }