st_atom_stipple.c

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/**************************************************************************
 * 
 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 * 
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 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
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 * 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.
 * 
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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 /*
  * \brief polygon stipple state
  *
  * Authors:
  *   Brian Paul
  */
 

#include "st_context.h"
#include "st_atom.h"
#include "pipe/p_context.h"
#include "pipe/p_defines.h"


static void 
update_stipple( struct st_context *st )
{
   const GLuint sz = sizeof(st->state.poly_stipple.stipple);
   assert(sz == sizeof(st->ctx->PolygonStipple));

   if (memcmp(&st->state.poly_stipple.stipple, st->ctx->PolygonStipple, sz)) {
      /* state has changed */
      memcpy(st->state.poly_stipple.stipple, st->ctx->PolygonStipple, sz);
      st->pipe->set_polygon_stipple(st->pipe, &st->state.poly_stipple);
   }
}


const struct st_tracked_state st_update_polygon_stipple = {
   "st_update_polygon_stipple",                         /* name */
   {                                                    /* dirty */
      (_NEW_POLYGONSTIPPLE),                            /* mesa */
      0,                                                /* st */
   },
   update_stipple                                       /* update */
};

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