--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m3g/m3gcore11/inc/m3g_vertexbuffer.h	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,142 @@
+/*
+* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: VertexBuffer interface
+*
+*/
+
+#ifndef __M3G_VERTEXBUFFER_H__
+#define __M3G_VERTEXBUFFER_H__
+
+/*!
+ * \internal
+ * \file
+ * \brief VertexBuffer interface
+ */
+
+#include "m3g_object.h"
+#include "m3g_vertexarray.h"
+
+/*!
+ * \internal
+ * \brief \c VertexBuffer object instance
+ */
+struct M3GVertexBufferImpl
+{
+    Object object;
+
+    /*@dependent@*/
+    VertexArray *colors;
+    /*@dependent@*/
+    VertexArray *normals;
+    VertexArray *texCoords[M3G_NUM_TEXTURE_UNITS];
+    /*@dependent@*/
+    VertexArray *vertices;
+
+    GLfloat texCoordScale[M3G_NUM_TEXTURE_UNITS];
+    GLfloat texCoordBias[M3G_NUM_TEXTURE_UNITS][3];
+
+    GLfloat vertexScale;
+    GLfloat vertexBias[3];
+
+    /*! \internal \brief Default vertex color */
+    struct { GLubyte r, g, b, a; } defaultColor;
+    
+    M3Gbool locked;
+    M3Gint vertexCount;
+    M3Gint arrayCount;
+    M3Gbitmask arrayMask;
+    M3Gint timestamp;
+    M3Gint verticesTimestamp;
+    
+    AABB bbox;
+};
+
+/*! \brief vertex component mask bits */
+#define M3G_POSITION_BIT        0x01u
+#define M3G_COLOR_BIT           0x02u
+#define M3G_NORMAL_BIT          0x04u
+
+#define M3G_TEXCOORD0_BIT       0x10u
+#define M3G_TEXCOORD1_BIT       0x20u
+#define M3G_TEXCOORD2_BIT       0x40u
+#define M3G_TEXCOORD3_BIT       0x80u
+
+/*----------------------------------------------------------------------
+ * Internal functions
+ *--------------------------------------------------------------------*/
+
+static void m3gApplyScaleAndBias(const VertexBuffer *buffer);
+static void m3gLockVertexBuffer(const VertexBuffer *buffer, M3Gint alphaFactor);
+static void m3gReleaseVertexBuffer(const VertexBuffer *buffer);
+
+static M3Gbool m3gGetVertex(const VertexBuffer *buffer, M3Gint idx, Vec3 *v);
+static M3Gbool m3gGetNormal(const VertexBuffer *buffer, M3Gint idx, Vec3 *v);
+static M3Gbool m3gGetTexCoord(const VertexBuffer *buffer, M3Gint idx, int unit, Vec3 *v);
+
+static M3Gint m3gGetTimestamp(const VertexBuffer *buffer);
+static M3Gint m3gGetNumVertices(const VertexBuffer *buffer);
+static M3Gbitmask m3gGetArrayMask(const VertexBuffer *buffer);
+
+static M3Gbool m3gValidateVertexBuffer(const VertexBuffer *vb,
+                                       const Appearance *app,
+                                       M3Gsizei maxIndex);
+static void m3gGetBoundingBox(VertexBuffer *buffer, AABB *boundingBox);
+
+static M3Gbool m3gMakeModifiedVertexBuffer(VertexBuffer *buffer,
+                                           const VertexBuffer *srcBuffer,
+                                           M3Gbitmask arrayMask,
+                                           M3Gbool createArrays);
+
+
+/* -------- Inline functions -------- */
+
+/*!
+ * \internal
+ * \brief Queries whether a vertex buffer can be (safely) bound with
+ * memory locking in effect
+ */
+static M3G_INLINE M3Gbool m3gValidateAlphaCache(const VertexBuffer *buffer) 
+{
+    const VertexArray *colArray = buffer->colors;
+    return colArray ? (colArray->cachedColors != 0) : M3G_TRUE;
+}
+
+/*!
+ * \internal
+ * \brief Type-safe helper function
+ */
+static M3G_INLINE void m3gDeleteVertexBuffer(VertexBuffer *buffer)
+{
+    m3gDeleteObject((Object *) buffer);
+}
+
+/*!
+ * \internal
+ * \brief Gets number of vertices in this buffer.
+ */
+static M3G_INLINE M3Gint m3gGetNumVertices(const VertexBuffer *buffer)
+{
+    return buffer->vertexCount;
+}
+
+/*!
+ * \internal
+ * \brief Returns the current array mask for this buffer
+ */
+static M3G_INLINE M3Gbitmask m3gGetArrayMask(const VertexBuffer *buffer)
+{
+    return buffer->arrayMask;
+}
+
+#endif /*__M3G_VERTEXBUFFER_H__*/