draw_vbuf.h

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/**************************************************************************
 *
 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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 **************************************************************************/

#ifndef DRAW_VBUF_H_
#define DRAW_VBUF_H_



struct pipe_rasterizer_state;
struct draw_context;
struct vertex_info;


struct vbuf_render {

   unsigned max_indices;
   unsigned max_vertex_buffer_bytes;

   boolean (*need_pipeline)(const struct vbuf_render *render,
                            const struct pipe_rasterizer_state *rasterizer,
                            unsigned int prim );


   const struct vertex_info *(*get_vertex_info)( struct vbuf_render * );
         
   void *(*allocate_vertices)( struct vbuf_render *,
                               ushort vertex_size,
                               ushort nr_vertices );

   boolean (*set_primitive)( struct vbuf_render *, unsigned prim );

   void (*draw)( struct vbuf_render *,
                 const ushort *indices,
                 uint nr_indices );

   /* Draw Arrays path too.
    */
   void (*draw_arrays)( struct vbuf_render *,
                        unsigned start,
                        uint nr );

   void (*release_vertices)( struct vbuf_render *,
                             void *vertices, 
                             unsigned vertex_size,
                             unsigned vertices_used );

   void (*destroy)( struct vbuf_render * );
};



struct draw_stage *
draw_vbuf_stage( struct draw_context *draw,
                 struct vbuf_render *render );


#endif /*DRAW_VBUF_H_*/

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