1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/graphics/m3g/m3gcore11/inc/m3g_camera.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,73 @@
     1.4 +/*
     1.5 +* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).
     1.6 +* All rights reserved.
     1.7 +* This component and the accompanying materials are made available
     1.8 +* under the terms of the License "Eclipse Public License v1.0"
     1.9 +* which accompanies this distribution, and is available
    1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.11 +*
    1.12 +* Initial Contributors:
    1.13 +* Nokia Corporation - initial contribution.
    1.14 +*
    1.15 +* Contributors:
    1.16 +*
    1.17 +* Description: Camera interface
    1.18 +*
    1.19 +*/
    1.20 +
    1.21 +#ifndef __M3G_CAMERA_H__
    1.22 +#define __M3G_CAMERA_H__
    1.23 +
    1.24 +/*!
    1.25 + * \internal
    1.26 + * \file 
    1.27 + * \brief Camera interface
    1.28 + */
    1.29 +
    1.30 +#include "m3g_gl.h"
    1.31 +#include "m3g_node.h"
    1.32 +
    1.33 +/*!
    1.34 + * \internal
    1.35 + * \brief Camera node instance data
    1.36 + */
    1.37 +struct M3GCameraImpl
    1.38 +{
    1.39 +	Node node;
    1.40 +    
    1.41 +    M3Gint	 projType;   
    1.42 +    M3Gfloat heightFov;
    1.43 +    M3Gfloat aspect;
    1.44 +    M3Gfloat clipNear;
    1.45 +    M3Gfloat clipFar;
    1.46 +
    1.47 +    Matrix	projMatrix;
    1.48 +    Vec4 frustumPlanes[6];
    1.49 +    
    1.50 +    M3Gbool frustumPlanesValid;
    1.51 +    M3Gbool zeroViewVolume;
    1.52 +};
    1.53 +
    1.54 +/*----------------------------------------------------------------------
    1.55 + * Internal functions
    1.56 + *--------------------------------------------------------------------*/
    1.57 +
    1.58 +static void m3gInitCamera(Interface *m3g, Camera *camera);
    1.59 +static void m3gApplyProjection(const Camera *camera);
    1.60 +
    1.61 +static const Vec4 *m3gFrustumPlanes(const Camera *camera);
    1.62 +static const Matrix *m3gProjectionMatrix(const Camera *camera);
    1.63 +
    1.64 +M3G_INLINE static M3Gbool m3gValidProjection(const Camera *camera)
    1.65 +{
    1.66 +    if (camera->zeroViewVolume) {
    1.67 +        M3G_LOG1(M3G_LOG_WARNINGS,
    1.68 +                 "Warning: Invalid projection for camera 0x%08X\n",
    1.69 +                 (unsigned) camera);
    1.70 +        return M3G_FALSE;
    1.71 +    }
    1.72 +    return M3G_TRUE;
    1.73 +}
    1.74 +
    1.75 +
    1.76 +#endif /*__M3G_CAMERA_H__*/