src/mesa/main/arrayobj.h

   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
  35 struct 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
  49 extern struct gl_array_object *
  50 _mesa_new_array_object( struct gl_context *ctx, GLuint name );
  51
  52 extern void
  53 _mesa_delete_array_object( struct gl_context *ctx, struct gl_array_object *obj );
  54
  55 extern void
  56 _mesa_reference_array_object_(struct gl_context *ctx,
  57                               struct gl_array_object **ptr,
  58                               struct gl_array_object *arrayObj);
  59
  60 static 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
  70 extern void
  71 _mesa_initialize_array_object( struct gl_context *ctx,
  72                                struct gl_array_object *obj, GLuint name );
  73
  74
  75 extern 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  */
  84 static 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  */
  95 static 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  */
 108 static 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
 121 void GLAPIENTRY _mesa_BindVertexArray( GLuint id );
 122
 123 void GLAPIENTRY _mesa_BindVertexArrayAPPLE( GLuint id );
 124
 125 void GLAPIENTRY _mesa_DeleteVertexArraysAPPLE(GLsizei n, const GLuint *ids);
 126
 127 void GLAPIENTRY _mesa_GenVertexArrays(GLsizei n, GLuint *arrays);
 128
 129 void GLAPIENTRY _mesa_GenVertexArraysAPPLE(GLsizei n, GLuint *buffer);
 130
 131 GLboolean GLAPIENTRY _mesa_IsVertexArrayAPPLE( GLuint id );
 132
 133 #endif /* ARRAYOBJ_H */