draw_vbuf.h

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00001 /**************************************************************************
00002  *
00003  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
00004  * All Rights Reserved.
00005  *
00006  * Permission is hereby granted, free of charge, to any person obtaining a
00007  * copy of this software and associated documentation files (the
00008  * "Software"), to deal in the Software without restriction, including
00009  * without limitation the rights to use, copy, modify, merge, publish,
00010  * distribute, sub license, and/or sell copies of the Software, and to
00011  * permit persons to whom the Software is furnished to do so, subject to
00012  * the following conditions:
00013  *
00014  * The above copyright notice and this permission notice (including the
00015  * next paragraph) shall be included in all copies or substantial portions
00016  * of the Software.
00017  *
00018  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
00019  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00020  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
00021  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
00022  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
00023  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
00024  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00025  *
00026  **************************************************************************/
00027 
00036 #ifndef DRAW_VBUF_H_
00037 #define DRAW_VBUF_H_
00038 
00039 
00040 
00041 struct pipe_rasterizer_state;
00042 struct draw_context;
00043 struct vertex_info;
00044 
00045 
00049 struct vbuf_render {
00050 
00055    unsigned max_indices;
00056    unsigned max_vertex_buffer_bytes;
00057 
00064    boolean (*need_pipeline)(const struct vbuf_render *render,
00065                             const struct pipe_rasterizer_state *rasterizer,
00066                             unsigned int prim );
00067 
00068 
00074    const struct vertex_info *(*get_vertex_info)( struct vbuf_render * );
00075          
00081    void *(*allocate_vertices)( struct vbuf_render *,
00082                                ushort vertex_size,
00083                                ushort nr_vertices );
00084 
00091    boolean (*set_primitive)( struct vbuf_render *, unsigned prim );
00092 
00097    void (*draw)( struct vbuf_render *,
00098                  const ushort *indices,
00099                  uint nr_indices );
00100 
00101    /* Draw Arrays path too.
00102     */
00103    void (*draw_arrays)( struct vbuf_render *,
00104                         unsigned start,
00105                         uint nr );
00106 
00110    void (*release_vertices)( struct vbuf_render *,
00111                              void *vertices, 
00112                              unsigned vertex_size,
00113                              unsigned vertices_used );
00114 
00115    void (*destroy)( struct vbuf_render * );
00116 };
00117 
00118 
00119 
00120 struct draw_stage *
00121 draw_vbuf_stage( struct draw_context *draw,
00122                  struct vbuf_render *render );
00123 
00124 
00125 #endif /*DRAW_VBUF_H_*/

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