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 DEBUG_GET_ONCE_BOOL_OPTION(gallium_dump_vs, "GALLIUM_DUMP_VS", FALSE)
  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       assert(constants);
  65       memcpy((void *)draw->vs.aligned_constant_storage[slot],
  66              constants,
  67              size);
  68       constants = draw->vs.aligned_constant_storage[slot];
  69    }
  70
  71    draw->vs.aligned_constants[slot] = constants;
  72    draw_vs_aos_machine_constants(draw->vs.aos_machine, slot, constants);
  73 }
  74
  75
  76 void draw_vs_set_viewport( struct draw_context *draw,
  77                            const struct pipe_viewport_state *viewport )
  78 {
  79    draw_vs_aos_machine_viewport( draw->vs.aos_machine, viewport );
  80 }
  81
  82
  83
  84 struct draw_vertex_shader *
  85 draw_create_vertex_shader(struct draw_context *draw,
  86                           const struct pipe_shader_state *shader)
  87 {
  88    struct draw_vertex_shader *vs = NULL;
  89
  90    if (draw->dump_vs) {
  91       tgsi_dump(shader->tokens, 0);
  92    }
  93
  94    if (!draw->pt.middle.llvm) {
  95 #if defined(PIPE_ARCH_X86)
  96       vs = draw_create_vs_sse( draw, shader );
  97 #elif defined(PIPE_ARCH_PPC)
  98       vs = draw_create_vs_ppc( draw, shader );
  99 #endif
 100    }
 101 #if HAVE_LLVM
 102    else {
 103       vs = draw_create_vs_llvm(draw, shader);
 104    }
 105 #endif
 106
 107    if (!vs) {
 108       vs = draw_create_vs_exec( draw, shader );
 109    }
 110
 111    if (vs)
 112    {
 113       uint i;
 114       for (i = 0; i < vs->info.num_outputs; i++) {
 115          if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_POSITION &&
 116              vs->info.output_semantic_index[i] == 0)
 117             vs->position_output = i;
 118          else if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_EDGEFLAG &&
 119              vs->info.output_semantic_index[i] == 0)
 120             vs->edgeflag_output = i;
 121       }
 122    }
 123
 124    assert(vs);
 125    return vs;
 126 }
 127
 128
 129 void
 130 draw_bind_vertex_shader(struct draw_context *draw,
 131                         struct draw_vertex_shader *dvs)
 132 {
 133    draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
 134
 135    if (dvs)
 136    {
 137       draw->vs.vertex_shader = dvs;
 138       draw->vs.num_vs_outputs = dvs->info.num_outputs;
 139       draw->vs.position_output = dvs->position_output;
 140       draw->vs.edgeflag_output = dvs->edgeflag_output;
 141       dvs->prepare( dvs, draw );
 142    }
 143    else {
 144       draw->vs.vertex_shader = NULL;
 145       draw->vs.num_vs_outputs = 0;
 146    }
 147 }
 148
 149
 150 void
 151 draw_delete_vertex_shader(struct draw_context *draw,
 152                           struct draw_vertex_shader *dvs)
 153 {
 154    unsigned i;
 155
 156    for (i = 0; i < dvs->nr_varients; i++)
 157       dvs->varient[i]->destroy( dvs->varient[i] );
 158
 159    dvs->nr_varients = 0;
 160
 161    dvs->delete( dvs );
 162 }
 163
 164
 165
 166 boolean
 167 draw_vs_init( struct draw_context *draw )
 168 {
 169    draw->dump_vs = debug_get_option_gallium_dump_vs();
 170
 171    draw->vs.machine = tgsi_exec_machine_create();
 172    if (!draw->vs.machine)
 173       return FALSE;
 174
 175    draw->vs.emit_cache = translate_cache_create();
 176    if (!draw->vs.emit_cache)
 177       return FALSE;
 178
 179    draw->vs.fetch_cache = translate_cache_create();
 180    if (!draw->vs.fetch_cache)
 181       return FALSE;
 182
 183    draw->vs.aos_machine = draw_vs_aos_machine();
 184 #ifdef PIPE_ARCH_X86
 185    if (!draw->vs.aos_machine)
 186       return FALSE;
 187 #endif
 188
 189    return TRUE;
 190 }
 191
 192 void
 193 draw_vs_destroy( struct draw_context *draw )
 194 {
 195    uint i;
 196
 197    if (draw->vs.fetch_cache)
 198       translate_cache_destroy(draw->vs.fetch_cache);
 199
 200    if (draw->vs.emit_cache)
 201       translate_cache_destroy(draw->vs.emit_cache);
 202
 203    if (draw->vs.aos_machine)
 204       draw_vs_aos_machine_destroy(draw->vs.aos_machine);
 205
 206    for (i = 0; i < PIPE_MAX_CONSTANT_BUFFERS; i++) {
 207       if (draw->vs.aligned_constant_storage[i]) {
 208          align_free((void *)draw->vs.aligned_constant_storage[i]);
 209       }
 210    }
 211
 212    tgsi_exec_machine_destroy(draw->vs.machine);
 213 }
 214
 215
 216 struct draw_vs_varient *
 217 draw_vs_lookup_varient( struct draw_vertex_shader *vs,
 218                         const struct draw_vs_varient_key *key )
 219 {
 220    struct draw_vs_varient *varient;
 221    unsigned i;
 222
 223    /* Lookup existing varient:
 224     */
 225    for (i = 0; i < vs->nr_varients; i++)
 226       if (draw_vs_varient_key_compare(key, &vs->varient[i]->key) == 0)
 227          return vs->varient[i];
 228
 229    /* Else have to create a new one:
 230     */
 231    varient = vs->create_varient( vs, key );
 232    if (varient == NULL)
 233       return NULL;
 234
 235    /* Add it to our list, could be smarter:
 236     */
 237    if (vs->nr_varients < Elements(vs->varient)) {
 238       vs->varient[vs->nr_varients++] = varient;
 239    }
 240    else {
 241       vs->last_varient++;
 242       vs->last_varient %= Elements(vs->varient);
 243       vs->varient[vs->last_varient]->destroy(vs->varient[vs->last_varient]);
 244       vs->varient[vs->last_varient] = varient;
 245    }
 246
 247    /* Done
 248     */
 249    return varient;
 250 }
 251
 252
 253 struct translate *
 254 draw_vs_get_fetch( struct draw_context *draw,
 255                    struct translate_key *key )
 256 {
 257    if (!draw->vs.fetch ||
 258        translate_key_compare(&draw->vs.fetch->key, key) != 0)
 259    {
 260       translate_key_sanitize(key);
 261       draw->vs.fetch = translate_cache_find(draw->vs.fetch_cache, key);
 262    }
 263
 264    return draw->vs.fetch;
 265 }
 266
 267 struct translate *
 268 draw_vs_get_emit( struct draw_context *draw,
 269                   struct translate_key *key )
 270 {
 271    if (!draw->vs.emit ||
 272        translate_key_compare(&draw->vs.emit->key, key) != 0)
 273    {
 274       translate_key_sanitize(key);
 275       draw->vs.emit = translate_cache_find(draw->vs.emit_cache, key);
 276    }
 277
 278    return draw->vs.emit;
 279 }