src/gallium/auxiliary/util/u_prim_restart.h

/*
 * Copyright 2014 VMware, Inc.
 * 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 VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */


#ifndef U_PRIM_RESTART_H
#define U_PRIM_RESTART_H


#include "pipe/p_defines.h"


#ifdef __cplusplus
extern "C" {
#endif


struct pipe_context;
struct pipe_draw_info;
union pipe_index_binding;
struct pipe_resource;


enum pipe_error
util_translate_prim_restart_ib(struct pipe_context *context,
                               const struct pipe_draw_info *info,
                               struct pipe_resource **dst_buffer);

enum pipe_error
util_draw_vbo_without_prim_restart(struct pipe_context *context,
                                   const struct pipe_draw_info *info);

static inline unsigned
util_prim_restart_index_from_size(unsigned index_size)
{
   if (index_size == 1)
      return 0xff;
   if (index_size == 2)
      return 0xffff;
   if (index_size == 4)
      return 0xffffffff;
   unreachable("unknown index size passed");
   return 0;
}

#ifdef __cplusplus
}
#endif

#endif