1/*
2 * Mesa 3-D graphics library
3 * Version:  7.6
4 *
5 * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
6 * (C) Copyright IBM Corporation 2006
7 * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
22 * BRIAN PAUL OR IBM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
23 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
24 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25 * SOFTWARE.
26 */
27
28#ifndef ARRAYOBJ_H
29#define ARRAYOBJ_H
30
31#include "glheader.h"
32#include "mtypes.h"
33#include "glformats.h"
34
35struct gl_context;
36
37/**
38 * \file arrayobj.h
39 * Functions for the GL_APPLE_vertex_array_object extension.
40 *
41 * \author Ian Romanick <idr@us.ibm.com>
42 * \author Brian Paul
43 */
44
45/*
46 * Internal functions
47 */
48
49extern struct gl_array_object *
50_mesa_new_array_object( struct gl_context *ctx, GLuint name );
51
52extern void
53_mesa_delete_array_object( struct gl_context *ctx, struct gl_array_object *obj );
54
55extern void
56_mesa_reference_array_object_(struct gl_context *ctx,
57                              struct gl_array_object **ptr,
58                              struct gl_array_object *arrayObj);
59
60static inline void
61_mesa_reference_array_object(struct gl_context *ctx,
62                             struct gl_array_object **ptr,
63                             struct gl_array_object *arrayObj)
64{
65   if (*ptr != arrayObj)
66      _mesa_reference_array_object_(ctx, ptr, arrayObj);
67}
68
69
70extern void
71_mesa_initialize_array_object( struct gl_context *ctx,
72                               struct gl_array_object *obj, GLuint name );
73
74
75extern void
76_mesa_update_array_object_max_element(struct gl_context *ctx,
77                                      struct gl_array_object *arrayObj);
78
79/** Returns the bitmask of all enabled arrays in fixed function mode.
80 *
81 *  In fixed function mode only the traditional fixed function arrays
82 *  are available.
83 */
84static inline GLbitfield64
85_mesa_array_object_get_enabled_ff(const struct gl_array_object *arrayObj)
86{
87   return arrayObj->_Enabled & VERT_BIT_FF_ALL;
88}
89
90/** Returns the bitmask of all enabled arrays in nv shader mode.
91 *
92 *  In nv shader mode, the nv generic arrays take precedence over
93 *  the legacy arrays.
94 */
95static inline GLbitfield64
96_mesa_array_object_get_enabled_nv(const struct gl_array_object *arrayObj)
97{
98   GLbitfield64 enabled = arrayObj->_Enabled;
99   return enabled & ~(VERT_BIT_FF_NVALIAS & (enabled >> VERT_ATTRIB_GENERIC0));
100}
101
102/** Returns the bitmask of all enabled arrays in arb/glsl shader mode.
103 *
104 *  In arb/glsl shader mode all the fixed function and the arb/glsl generic
105 *  arrays are available. Only the first generic array takes
106 *  precedence over the legacy position array.
107 */
108static inline GLbitfield64
109_mesa_array_object_get_enabled_arb(const struct gl_array_object *arrayObj)
110{
111   GLbitfield64 enabled = arrayObj->_Enabled;
112   return enabled & ~(VERT_BIT_POS & (enabled >> VERT_ATTRIB_GENERIC0));
113}
114
115
116/*
117 * API functions
118 */
119
120
121void GLAPIENTRY _mesa_BindVertexArray( GLuint id );
122
123void GLAPIENTRY _mesa_BindVertexArrayAPPLE( GLuint id );
124
125void GLAPIENTRY _mesa_DeleteVertexArraysAPPLE(GLsizei n, const GLuint *ids);
126
127void GLAPIENTRY _mesa_GenVertexArrays(GLsizei n, GLuint *arrays);
128
129void GLAPIENTRY _mesa_GenVertexArraysAPPLE(GLsizei n, GLuint *buffer);
130
131GLboolean GLAPIENTRY _mesa_IsVertexArrayAPPLE( GLuint id );
132
133#endif /* ARRAYOBJ_H */
134