src/mesa/main/arrayobj.h

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