src/gallium/auxiliary/draw/draw_vs.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28  /*
  29   * Authors:
  30   *   Keith Whitwell <keith@tungstengraphics.com>
  31   *   Brian Paul
  32   */
  33
  34 #include "pipe/p_util.h"
  35 #include "pipe/p_shader_tokens.h"
  36 #include "draw_private.h"
  37 #include "draw_context.h"
  38 #include "draw_vs.h"
  39
  40
  41
  42 struct draw_vertex_shader *
  43 draw_create_vertex_shader(struct draw_context *draw,
  44                           const struct pipe_shader_state *shader)
  45 {
  46    struct draw_vertex_shader *vs;
  47
  48    vs = draw_create_vs_llvm( draw, shader );
  49    if (!vs) {
  50       vs = draw_create_vs_sse( draw, shader );
  51       if (!vs) {
  52          vs = draw_create_vs_exec( draw, shader );
  53       }
  54    }
  55
  56    assert(vs);
  57    return vs;
  58 }
  59
  60
  61 void
  62 draw_bind_vertex_shader(struct draw_context *draw,
  63                         struct draw_vertex_shader *dvs)
  64 {
  65    draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
  66
  67    if (dvs)
  68    {
  69       draw->vertex_shader = dvs;
  70       draw->num_vs_outputs = dvs->info.num_outputs;
  71       dvs->prepare( dvs, draw );
  72    }
  73    else {
  74       draw->vertex_shader = NULL;
  75       draw->num_vs_outputs = 0;
  76    }
  77 }
  78
  79
  80 void
  81 draw_delete_vertex_shader(struct draw_context *draw,
  82                           struct draw_vertex_shader *dvs)
  83 {
  84    dvs->delete( dvs );
  85 }