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 #include "translate/translate.h"
  40 #include "translate/translate_cache.h"
  41
  42
  43
  44 struct draw_vertex_shader *
  45 draw_create_vertex_shader(struct draw_context *draw,
  46                           const struct pipe_shader_state *shader)
  47 {
  48    struct draw_vertex_shader *vs;
  49
  50    vs = draw_create_vs_llvm( draw, shader );
  51    if (!vs) {
  52       vs = draw_create_vs_sse( draw, shader );
  53       if (!vs) {
  54          vs = draw_create_vs_exec( draw, shader );
  55       }
  56    }
  57
  58    assert(vs);
  59    return vs;
  60 }
  61
  62
  63 void
  64 draw_bind_vertex_shader(struct draw_context *draw,
  65                         struct draw_vertex_shader *dvs)
  66 {
  67    draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
  68
  69    if (dvs)
  70    {
  71       draw->vs.vertex_shader = dvs;
  72       draw->vs.num_vs_outputs = dvs->info.num_outputs;
  73       dvs->prepare( dvs, draw );
  74    }
  75    else {
  76       draw->vs.vertex_shader = NULL;
  77       draw->vs.num_vs_outputs = 0;
  78    }
  79 }
  80
  81
  82 void
  83 draw_delete_vertex_shader(struct draw_context *draw,
  84                           struct draw_vertex_shader *dvs)
  85 {
  86    dvs->delete( dvs );
  87 }
  88
  89
  90
  91 boolean
  92 draw_vs_init( struct draw_context *draw )
  93 {
  94    tgsi_exec_machine_init(&draw->vs.machine);
  95
  96    /* FIXME: give this machine thing a proper constructor:
  97     */
  98    draw->vs.machine.Inputs = align_malloc(PIPE_MAX_ATTRIBS * sizeof(struct tgsi_exec_vector), 16);
  99    if (!draw->vs.machine.Inputs)
 100       return FALSE;
 101
 102    draw->vs.machine.Outputs = align_malloc(PIPE_MAX_ATTRIBS * sizeof(struct tgsi_exec_vector), 16);
 103    if (!draw->vs.machine.Outputs)
 104       return FALSE;
 105
 106    draw->vs.emit_cache = translate_cache_create();
 107    if (!draw->vs.emit_cache)
 108       return FALSE;
 109
 110    draw->vs.fetch_cache = translate_cache_create();
 111    if (!draw->vs.fetch_cache)
 112       return FALSE;
 113
 114    return TRUE;
 115 }
 116
 117 void
 118 draw_vs_destroy( struct draw_context *draw )
 119 {
 120    if (draw->vs.machine.Inputs)
 121       align_free(draw->vs.machine.Inputs);
 122
 123    if (draw->vs.machine.Outputs)
 124       align_free(draw->vs.machine.Outputs);
 125
 126    if (draw->vs.fetch_cache)
 127       translate_cache_destroy(draw->vs.fetch_cache);
 128
 129    if (draw->vs.emit_cache)
 130       translate_cache_destroy(draw->vs.emit_cache);
 131
 132    tgsi_exec_machine_free_data(&draw->vs.machine);
 133
 134 }
 135
 136
 137 struct draw_vs_varient *
 138 draw_vs_lookup_varient( struct draw_vertex_shader *vs,
 139                         const struct draw_vs_varient_key *key )
 140 {
 141    struct draw_vs_varient *varient;
 142    unsigned i;
 143
 144    /* Lookup existing varient:
 145     */
 146    for (i = 0; i < vs->nr_varients; i++)
 147       if (draw_vs_varient_key_compare(key, &vs->varient[i]->key) == 0)
 148          return vs->varient[i];
 149
 150    /* Else have to create a new one:
 151     */
 152    varient = vs->create_varient( vs, key );
 153    if (varient == NULL)
 154       return NULL;
 155
 156    /* Add it to our list:
 157     */
 158    assert(vs->nr_varients < Elements(vs->varient));
 159    vs->varient[vs->nr_varients++] = varient;
 160
 161    /* Done
 162     */
 163    return varient;
 164 }
 165
 166
 167 struct translate *
 168 draw_vs_get_fetch( struct draw_context *draw,
 169                    struct translate_key *key )
 170 {
 171    if (!draw->vs.fetch ||
 172        translate_key_compare(&draw->vs.fetch->key, key) != 0)
 173    {
 174       translate_key_sanitize(key);
 175       draw->vs.fetch = translate_cache_find(draw->vs.fetch_cache, key);
 176    }
 177
 178    return draw->vs.fetch;
 179 }
 180
 181 struct translate *
 182 draw_vs_get_emit( struct draw_context *draw,
 183                   struct translate_key *key )
 184 {
 185    if (!draw->vs.emit ||
 186        translate_key_compare(&draw->vs.emit->key, key) != 0)
 187    {
 188       translate_key_sanitize(key);
 189       draw->vs.emit = translate_cache_find(draw->vs.emit_cache, key);
 190    }
 191
 192    return draw->vs.emit;
 193 }