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 "util/u_math.h"
  35 #include "util/u_memory.h"
  36
  37 #include "pipe/p_shader_tokens.h"
  38
  39 #include "draw_private.h"
  40 #include "draw_context.h"
  41 #include "draw_vs.h"
  42
  43 #include "translate/translate.h"
  44 #include "translate/translate_cache.h"
  45
  46 #include "tgsi/tgsi_dump.h"
  47 #include "tgsi/tgsi_exec.h"
  48
  49
  50
  51 void
  52 draw_vs_set_constants(struct draw_context *draw,
  53                       unsigned slot,
  54                       const void *constants,
  55                       unsigned size)
  56 {
  57    if (((uintptr_t)constants) & 0xf) {
  58       if (size > draw->vs.const_storage_size[slot]) {
  59          if (draw->vs.aligned_constant_storage[slot]) {
  60             align_free((void *)draw->vs.aligned_constant_storage[slot]);
  61          }
  62          draw->vs.aligned_constant_storage[slot] = align_malloc(size, 16);
  63       }
  64       memcpy((void *)draw->vs.aligned_constant_storage[slot],
  65              constants,
  66              size);
  67       constants = draw->vs.aligned_constant_storage[slot];
  68    }
  69
  70    draw->vs.aligned_constants[slot] = constants;
  71    draw_vs_aos_machine_constants(draw->vs.aos_machine, slot, constants);
  72 }
  73
  74
  75 void draw_vs_set_viewport( struct draw_context *draw,
  76                            const struct pipe_viewport_state *viewport )
  77 {
  78    draw_vs_aos_machine_viewport( draw->vs.aos_machine, viewport );
  79 }
  80
  81
  82
  83 struct draw_vertex_shader *
  84 draw_create_vertex_shader(struct draw_context *draw,
  85                           const struct pipe_shader_state *shader)
  86 {
  87    struct draw_vertex_shader *vs;
  88
  89    if (draw->dump_vs) {
  90       tgsi_dump(shader->tokens, 0);
  91    }
  92
  93    vs = draw_create_vs_llvm( draw, shader );
  94    if (!vs) {
  95       vs = draw_create_vs_sse( draw, shader );
  96       if (!vs) {
  97          vs = draw_create_vs_ppc( draw, shader );
  98          if (!vs) {
  99             vs = draw_create_vs_exec( draw, shader );
 100          }
 101       }
 102    }
 103
 104    if (vs)
 105    {
 106       uint i;
 107       for (i = 0; i < vs->info.num_outputs; i++) {
 108          if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_POSITION &&
 109              vs->info.output_semantic_index[i] == 0)
 110             vs->position_output = i;
 111          else if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_EDGEFLAG &&
 112              vs->info.output_semantic_index[i] == 0)
 113             vs->edgeflag_output = i;
 114       }
 115    }
 116
 117    assert(vs);
 118    return vs;
 119 }
 120
 121
 122 void
 123 draw_bind_vertex_shader(struct draw_context *draw,
 124                         struct draw_vertex_shader *dvs)
 125 {
 126    draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
 127
 128    if (dvs)
 129    {
 130       draw->vs.vertex_shader = dvs;
 131       draw->vs.num_vs_outputs = dvs->info.num_outputs;
 132       draw->vs.position_output = dvs->position_output;
 133       draw->vs.edgeflag_output = dvs->edgeflag_output;
 134       dvs->prepare( dvs, draw );
 135    }
 136    else {
 137       draw->vs.vertex_shader = NULL;
 138       draw->vs.num_vs_outputs = 0;
 139    }
 140 }
 141
 142
 143 void
 144 draw_delete_vertex_shader(struct draw_context *draw,
 145                           struct draw_vertex_shader *dvs)
 146 {
 147    unsigned i;
 148
 149    for (i = 0; i < dvs->nr_varients; i++)
 150       dvs->varient[i]->destroy( dvs->varient[i] );
 151
 152    dvs->nr_varients = 0;
 153
 154    dvs->delete( dvs );
 155 }
 156
 157
 158
 159 boolean
 160 draw_vs_init( struct draw_context *draw )
 161 {
 162    draw->dump_vs = debug_get_bool_option("GALLIUM_DUMP_VS", FALSE);
 163
 164    draw->vs.machine = tgsi_exec_machine_create();
 165    if (!draw->vs.machine)
 166       return FALSE;
 167
 168    draw->vs.emit_cache = translate_cache_create();
 169    if (!draw->vs.emit_cache)
 170       return FALSE;
 171
 172    draw->vs.fetch_cache = translate_cache_create();
 173    if (!draw->vs.fetch_cache)
 174       return FALSE;
 175
 176    draw->vs.aos_machine = draw_vs_aos_machine();
 177 #ifdef PIPE_ARCH_X86
 178    if (!draw->vs.aos_machine)
 179       return FALSE;
 180 #endif
 181
 182    return TRUE;
 183 }
 184
 185 void
 186 draw_vs_destroy( struct draw_context *draw )
 187 {
 188    uint i;
 189
 190    if (draw->vs.fetch_cache)
 191       translate_cache_destroy(draw->vs.fetch_cache);
 192
 193    if (draw->vs.emit_cache)
 194       translate_cache_destroy(draw->vs.emit_cache);
 195
 196    if (draw->vs.aos_machine)
 197       draw_vs_aos_machine_destroy(draw->vs.aos_machine);
 198
 199    for (i = 0; i < PIPE_MAX_CONSTANT; i++) {
 200       if (draw->vs.aligned_constant_storage[i]) {
 201          align_free((void *)draw->vs.aligned_constant_storage[i]);
 202       }
 203    }
 204
 205    tgsi_exec_machine_destroy(draw->vs.machine);
 206 }
 207
 208
 209 struct draw_vs_varient *
 210 draw_vs_lookup_varient( struct draw_vertex_shader *vs,
 211                         const struct draw_vs_varient_key *key )
 212 {
 213    struct draw_vs_varient *varient;
 214    unsigned i;
 215
 216    /* Lookup existing varient:
 217     */
 218    for (i = 0; i < vs->nr_varients; i++)
 219       if (draw_vs_varient_key_compare(key, &vs->varient[i]->key) == 0)
 220          return vs->varient[i];
 221
 222    /* Else have to create a new one:
 223     */
 224    varient = vs->create_varient( vs, key );
 225    if (varient == NULL)
 226       return NULL;
 227
 228    /* Add it to our list, could be smarter:
 229     */
 230    if (vs->nr_varients < Elements(vs->varient)) {
 231       vs->varient[vs->nr_varients++] = varient;
 232    }
 233    else {
 234       vs->last_varient++;
 235       vs->last_varient %= Elements(vs->varient);
 236       vs->varient[vs->last_varient]->destroy(vs->varient[vs->last_varient]);
 237       vs->varient[vs->last_varient] = varient;
 238    }
 239
 240    /* Done
 241     */
 242    return varient;
 243 }
 244
 245
 246 struct translate *
 247 draw_vs_get_fetch( struct draw_context *draw,
 248                    struct translate_key *key )
 249 {
 250    if (!draw->vs.fetch ||
 251        translate_key_compare(&draw->vs.fetch->key, key) != 0)
 252    {
 253       translate_key_sanitize(key);
 254       draw->vs.fetch = translate_cache_find(draw->vs.fetch_cache, key);
 255    }
 256
 257    return draw->vs.fetch;
 258 }
 259
 260 struct translate *
 261 draw_vs_get_emit( struct draw_context *draw,
 262                   struct translate_key *key )
 263 {
 264    if (!draw->vs.emit ||
 265        translate_key_compare(&draw->vs.emit->key, key) != 0)
 266    {
 267       translate_key_sanitize(key);
 268       draw->vs.emit = translate_cache_find(draw->vs.emit_cache, key);
 269    }
 270
 271    return draw->vs.emit;
 272 }