src/mesa/tnl/t_split.h

   1 /*
   2  * mesa 3-D graphics library
   3  *
   4  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 /**
  26  * \brief VBO builder module datatypes and definitions.
  27  * \author Keith Whitwell
  28  */
  29
  30
  31 /**
  32  * \mainpage The TNL splitter
  33  *
  34  * This is the private data used internally to the _tnl_split_prims()
  35  * helper function.  Nobody outside the _tnl_split* files needs to
  36  * include or know about this structure.
  37  */
  38
  39
  40 #ifndef _TNL_SPLIT_H
  41 #define _TNL_SPLIT_H
  42
  43 #include "tnl.h"
  44
  45
  46 /* True if a primitive can be split without copying of vertices, false
  47  * otherwise.
  48  */
  49 GLboolean
  50 _tnl_split_prim_inplace(GLenum mode, GLuint *first, GLuint *incr);
  51
  52 void
  53 _tnl_split_inplace(struct gl_context *ctx,
  54                    const struct tnl_vertex_array arrays[],
  55                    const struct _mesa_prim *prim,
  56                    GLuint nr_prims,
  57                    const struct _mesa_index_buffer *ib,
  58                    GLuint num_instances,
  59                    GLuint base_instance,
  60                    tnl_draw_func draw,
  61                    const struct split_limits *limits);
  62
  63 /* Requires ib != NULL:
  64  */
  65 void
  66 _tnl_split_copy(struct gl_context *ctx,
  67                 const struct tnl_vertex_array arrays[],
  68                 const struct _mesa_prim *prim,
  69                 GLuint nr_prims,
  70                 const struct _mesa_index_buffer *ib,
  71                 tnl_draw_func draw,
  72                 const struct split_limits *limits);
  73
  74 #endif