text: /**************************************************************************
   *
   * Copyright 2008 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,
   * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
   * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   *
   **************************************************************************/
  
  #ifndef TR_SCREEN_H_
  #define TR_SCREEN_H_
  
  
  #include "pipe/p_screen.h"
  #include "os/os_thread.h"
  
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  
  struct tr_list {
     struct tr_list *next;
     struct tr_list *prev;
  };
  
  /**
   * It often happens that new data is written directly to the user buffers
   * without mapping/unmapping. This flag marks user buffers, so that their
   * contents can be dumpped before being used by the pipe context.
   */
  #define TRACE_FLAG_USER_BUFFER  (1 << 31)
  
  
  struct trace_screen
  {
     struct pipe_screen base;
  
     struct pipe_screen *screen;
  };
  
  
  /*
   * tr_screen.c
   */
  
  
  struct trace_screen *
  trace_screen(struct pipe_screen *screen);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* TR_SCREEN_H_ */
  