/**************************************************************************
 * 
 * Copyright 2009 VMware, Inc.
 * Copyright 2007 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.
 * 
 **************************************************************************/


#include "pipe/p_defines.h"
#include "tgsi/tgsi_dump.h"
#include "tgsi/tgsi_parse.h"
#include "util/u_memory.h"
#include "draw/draw_context.h"

#include "lp_context.h"
#include "lp_debug.h"
#include "lp_state.h"


static void *
llvmpipe_create_vs_state(struct pipe_context *pipe,
                         const struct pipe_shader_state *templ)
{
   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
   struct draw_vertex_shader *vs;

   vs = draw_create_vertex_shader(llvmpipe->draw, templ);
   if (vs == NULL) {
      return NULL;
   }

   if (LP_DEBUG & DEBUG_TGSI) {
      debug_printf("llvmpipe: Create vertex shader %p:\n", (void *) vs);
      tgsi_dump(templ->tokens, 0);
   }

   return vs;
}


static void
llvmpipe_bind_vs_state(struct pipe_context *pipe, void *_vs)
{
   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
   struct draw_vertex_shader *vs = (struct draw_vertex_shader *)_vs;

   if (llvmpipe->vs == vs)
      return;

   draw_bind_vertex_shader(llvmpipe->draw, vs);

   llvmpipe->vs = vs;

   llvmpipe->dirty |= LP_NEW_VS;
}


static void
llvmpipe_delete_vs_state(struct pipe_context *pipe, void *_vs)
{
   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
   struct draw_vertex_shader *vs = (struct draw_vertex_shader *)_vs;

   draw_delete_vertex_shader(llvmpipe->draw, vs);
}



void
llvmpipe_init_vs_funcs(struct llvmpipe_context *llvmpipe)
{
   llvmpipe->pipe.create_vs_state = llvmpipe_create_vs_state;
   llvmpipe->pipe.bind_vs_state   = llvmpipe_bind_vs_state;
   llvmpipe->pipe.delete_vs_state = llvmpipe_delete_vs_state;
}
