sl@0: /*
sl@0: * Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: VertexArray interface
sl@0: *
sl@0: */
sl@0: 
sl@0: #ifndef __M3G_VERTEXARRAY_H__
sl@0: #define __M3G_VERTEXARRAY_H__
sl@0: 
sl@0: /*!
sl@0:  * \internal
sl@0:  * \file
sl@0:  * \brief VertexArray interface
sl@0:  */
sl@0: 
sl@0: #include "m3g_object.h"
sl@0: #include "m3g_gl.h"
sl@0: 
sl@0: /*!
sl@0:  * \internal
sl@0:  * \brief \c VertexArray object instance
sl@0:  */
sl@0: struct M3GVertexArrayImpl
sl@0: {
sl@0:     Object object;
sl@0:     
sl@0:     M3Gsizei vertexCount;
sl@0:     M3Gint mapCount;
sl@0:     M3Guint numLocks;
sl@0:     
sl@0:     GLint elementSize;
sl@0:     GLenum elementType;
sl@0:     GLsizei stride;
sl@0: 
sl@0:     M3GMemObject data;
sl@0:     M3Gshort rangeMin, rangeMax;
sl@0: 
sl@0:     /*!
sl@0:      * \internal
sl@0:      * \brief Cached color array(s?) with premultiplied alpha
sl@0:      */
sl@0:     M3GMemObject cachedColors;
sl@0: 
sl@0:     /*!
sl@0:      * \internal
sl@0:      * \brief Alpha factor for currently stored scaled colors
sl@0:      *
sl@0:      * anything below zero is considered a dirty value
sl@0:      */
sl@0:     M3Gint cachedAlphaFactor;
sl@0:     M3Gint timestamp;
sl@0: };
sl@0: 
sl@0: /* If this assert fails, check the compiler padding settings */
sl@0: M3G_CT_ASSERT(sizeof(VertexArray) == sizeof(Object) + 44);
sl@0: 
sl@0: /*----------------------------------------------------------------------
sl@0:  * Internal functions
sl@0:  *--------------------------------------------------------------------*/
sl@0: 
sl@0: static void m3gLockColorArray   (const VertexArray *array, M3Gint alphaFactor);
sl@0: static void m3gLockNormalArray  (const VertexArray *array);
sl@0: static void m3gLockTexCoordArray(const VertexArray *array);
sl@0: static void m3gLockVertexArray  (const VertexArray *array);
sl@0: static void m3gUnlockArray      (const VertexArray *array);
sl@0: 
sl@0: static M3Gbool m3gCreateAlphaColorCache(VertexArray *array);
sl@0:     
sl@0: static VertexArray *m3gCloneVertexArray(const VertexArray *array);
sl@0: static M3Gint m3gGetArrayVertexCount (const VertexArray *array);
sl@0: static M3Gbool m3gIsCompatible  (const VertexArray *array, const VertexArray *other);
sl@0: static M3Gint m3gGetArrayTimestamp(const VertexArray *array);
sl@0: static void m3gGetArrayBoundingBox(const VertexArray *array, M3Gshort *boundingBox);
sl@0: static M3Gbool m3gGetCoordinates(VertexArray *va,
sl@0:                                  M3Gint elementCount,
sl@0:                                  M3Gint idx,
sl@0:                                  M3Gfloat *v);
sl@0: 
sl@0: static void m3gGetArrayValueRange(const VertexArray *array,
sl@0:                                   M3Gint *minValue, M3Gint *maxValue);
sl@0: 
sl@0: #endif /*__M3G_VERTEXARRAY_H__*/