src/mesa/drivers/dri/i965/brw_state_upload.c

   1 /*
   2  Copyright (C) Intel Corp.  2006.  All Rights Reserved.
   3  Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
   4  develop this 3D driver.
   5
   6  Permission is hereby granted, free of charge, to any person obtaining
   7  a 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, sublicense, 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
  16  portions of the Software.
  17
  18  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21  IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  22  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25
  26  **********************************************************************/
  27  /*
  28   * Authors:
  29   *   Keith Whitwell <keith@tungstengraphics.com>
  30   */
  31
  32
  33
  34 #include "brw_context.h"
  35 #include "brw_state.h"
  36 #include "intel_batchbuffer.h"
  37
  38 /* This is used to initialize brw->state.atoms[].  We could use this
  39  * list directly except for a single atom, brw_constant_buffer, which
  40  * has a .dirty value which changes according to the parameters of the
  41  * current fragment and vertex programs, and so cannot be a static
  42  * value.
  43  */
  44 const struct brw_tracked_state *atoms[] =
  45 {
  46    &brw_check_fallback,
  47
  48    &brw_wm_input_sizes,
  49    &brw_vs_prog,
  50    &brw_gs_prog,
  51    &brw_clip_prog,
  52    &brw_sf_prog,
  53    &brw_wm_prog,
  54
  55    /* Once all the programs are done, we know how large urb entry
  56     * sizes need to be and can decide if we need to change the urb
  57     * layout.
  58     */
  59    &brw_curbe_offsets,
  60    &brw_recalculate_urb_fence,
  61
  62
  63    &brw_cc_vp,
  64    &brw_cc_unit,
  65
  66    &brw_wm_surfaces,            /* must do before samplers */
  67    &brw_wm_samplers,
  68
  69    &brw_wm_unit,
  70    &brw_sf_vp,
  71    &brw_sf_unit,
  72    &brw_vs_unit,                /* always required, enabled or not */
  73    &brw_clip_unit,
  74    &brw_gs_unit,
  75
  76    /* Command packets:
  77     */
  78    &brw_invarient_state,
  79    &brw_state_base_address,
  80
  81    &brw_binding_table_pointers,
  82    &brw_blend_constant_color,
  83
  84    &brw_depthbuffer,
  85
  86    &brw_polygon_stipple,
  87    &brw_polygon_stipple_offset,
  88
  89    &brw_line_stipple,
  90    &brw_aa_line_parameters,
  91    /* Ordering of the commands below is documented as fixed.
  92     */
  93 #if 0
  94    &brw_pipelined_state_pointers,
  95    &brw_urb_fence,
  96    &brw_constant_buffer_state,
  97 #else
  98    &brw_psp_urb_cbs,
  99 #endif
 100
 101    &brw_drawing_rect,
 102    &brw_indices,
 103    &brw_vertices,
 104
 105    NULL,                        /* brw_constant_buffer */
 106 };
 107
 108
 109 void brw_init_state( struct brw_context *brw )
 110 {
 111    GLuint i;
 112
 113    brw_init_cache(brw);
 114
 115    brw->state.atoms = _mesa_malloc(sizeof(atoms));
 116    brw->state.nr_atoms = sizeof(atoms)/sizeof(*atoms);
 117    _mesa_memcpy(brw->state.atoms, atoms, sizeof(atoms));
 118
 119    /* Patch in a pointer to the dynamic state atom:
 120     */
 121    for (i = 0; i < brw->state.nr_atoms; i++)
 122       if (brw->state.atoms[i] == NULL)
 123          brw->state.atoms[i] = &brw->curbe.tracked_state;
 124
 125    _mesa_memcpy(&brw->curbe.tracked_state,
 126                 &brw_constant_buffer,
 127                 sizeof(brw_constant_buffer));
 128 }
 129
 130
 131 void brw_destroy_state( struct brw_context *brw )
 132 {
 133    if (brw->state.atoms) {
 134       _mesa_free(brw->state.atoms);
 135       brw->state.atoms = NULL;
 136    }
 137
 138    brw_destroy_cache(brw);
 139    brw_destroy_batch_cache(brw);
 140 }
 141
 142 /***********************************************************************
 143  */
 144
 145 static GLboolean check_state( const struct brw_state_flags *a,
 146                               const struct brw_state_flags *b )
 147 {
 148    return ((a->mesa & b->mesa) ||
 149            (a->brw & b->brw) ||
 150            (a->cache & b->cache));
 151 }
 152
 153 static void accumulate_state( struct brw_state_flags *a,
 154                               const struct brw_state_flags *b )
 155 {
 156    a->mesa |= b->mesa;
 157    a->brw |= b->brw;
 158    a->cache |= b->cache;
 159 }
 160
 161
 162 static void xor_states( struct brw_state_flags *result,
 163                              const struct brw_state_flags *a,
 164                               const struct brw_state_flags *b )
 165 {
 166    result->mesa = a->mesa ^ b->mesa;
 167    result->brw = a->brw ^ b->brw;
 168    result->cache = a->cache ^ b->cache;
 169 }
 170
 171 static void
 172 brw_clear_validated_bos(struct brw_context *brw)
 173 {
 174    int i;
 175
 176    /* Clear the last round of validated bos */
 177    for (i = 0; i < brw->state.validated_bo_count; i++) {
 178       dri_bo_unreference(brw->state.validated_bos[i]);
 179       brw->state.validated_bos[i] = NULL;
 180    }
 181    brw->state.validated_bo_count = 0;
 182 }
 183
 184 struct dirty_bit_map {
 185    uint32_t bit;
 186    char *name;
 187    uint32_t count;
 188 };
 189
 190 #define DEFINE_BIT(name) {name, #name, 0}
 191
 192 static struct dirty_bit_map mesa_bits[] = {
 193    DEFINE_BIT(_NEW_MODELVIEW),
 194    DEFINE_BIT(_NEW_PROJECTION),
 195    DEFINE_BIT(_NEW_TEXTURE_MATRIX),
 196    DEFINE_BIT(_NEW_COLOR_MATRIX),
 197    DEFINE_BIT(_NEW_ACCUM),
 198    DEFINE_BIT(_NEW_COLOR),
 199    DEFINE_BIT(_NEW_DEPTH),
 200    DEFINE_BIT(_NEW_EVAL),
 201    DEFINE_BIT(_NEW_FOG),
 202    DEFINE_BIT(_NEW_HINT),
 203    DEFINE_BIT(_NEW_LIGHT),
 204    DEFINE_BIT(_NEW_LINE),
 205    DEFINE_BIT(_NEW_PIXEL),
 206    DEFINE_BIT(_NEW_POINT),
 207    DEFINE_BIT(_NEW_POLYGON),
 208    DEFINE_BIT(_NEW_POLYGONSTIPPLE),
 209    DEFINE_BIT(_NEW_SCISSOR),
 210    DEFINE_BIT(_NEW_STENCIL),
 211    DEFINE_BIT(_NEW_TEXTURE),
 212    DEFINE_BIT(_NEW_TRANSFORM),
 213    DEFINE_BIT(_NEW_VIEWPORT),
 214    DEFINE_BIT(_NEW_PACKUNPACK),
 215    DEFINE_BIT(_NEW_ARRAY),
 216    DEFINE_BIT(_NEW_RENDERMODE),
 217    DEFINE_BIT(_NEW_BUFFERS),
 218    DEFINE_BIT(_NEW_MULTISAMPLE),
 219    DEFINE_BIT(_NEW_TRACK_MATRIX),
 220    DEFINE_BIT(_NEW_PROGRAM),
 221    {0, 0, 0}
 222 };
 223
 224 static struct dirty_bit_map brw_bits[] = {
 225    DEFINE_BIT(BRW_NEW_URB_FENCE),
 226    DEFINE_BIT(BRW_NEW_FRAGMENT_PROGRAM),
 227    DEFINE_BIT(BRW_NEW_VERTEX_PROGRAM),
 228    DEFINE_BIT(BRW_NEW_INPUT_DIMENSIONS),
 229    DEFINE_BIT(BRW_NEW_CURBE_OFFSETS),
 230    DEFINE_BIT(BRW_NEW_REDUCED_PRIMITIVE),
 231    DEFINE_BIT(BRW_NEW_PRIMITIVE),
 232    DEFINE_BIT(BRW_NEW_CONTEXT),
 233    DEFINE_BIT(BRW_NEW_WM_INPUT_DIMENSIONS),
 234    DEFINE_BIT(BRW_NEW_INPUT_VARYING),
 235    DEFINE_BIT(BRW_NEW_PSP),
 236    DEFINE_BIT(BRW_NEW_FENCE),
 237    DEFINE_BIT(BRW_NEW_INDICES),
 238    DEFINE_BIT(BRW_NEW_VERTICES),
 239    DEFINE_BIT(BRW_NEW_BATCH),
 240    DEFINE_BIT(BRW_NEW_DEPTH_BUFFER),
 241    {0, 0, 0}
 242 };
 243
 244 static struct dirty_bit_map cache_bits[] = {
 245    DEFINE_BIT(CACHE_NEW_CC_VP),
 246    DEFINE_BIT(CACHE_NEW_CC_UNIT),
 247    DEFINE_BIT(CACHE_NEW_WM_PROG),
 248    DEFINE_BIT(CACHE_NEW_SAMPLER_DEFAULT_COLOR),
 249    DEFINE_BIT(CACHE_NEW_SAMPLER),
 250    DEFINE_BIT(CACHE_NEW_WM_UNIT),
 251    DEFINE_BIT(CACHE_NEW_SF_PROG),
 252    DEFINE_BIT(CACHE_NEW_SF_VP),
 253    DEFINE_BIT(CACHE_NEW_SF_UNIT),
 254    DEFINE_BIT(CACHE_NEW_VS_UNIT),
 255    DEFINE_BIT(CACHE_NEW_VS_PROG),
 256    DEFINE_BIT(CACHE_NEW_GS_UNIT),
 257    DEFINE_BIT(CACHE_NEW_GS_PROG),
 258    DEFINE_BIT(CACHE_NEW_CLIP_VP),
 259    DEFINE_BIT(CACHE_NEW_CLIP_UNIT),
 260    DEFINE_BIT(CACHE_NEW_CLIP_PROG),
 261    DEFINE_BIT(CACHE_NEW_SURFACE),
 262    DEFINE_BIT(CACHE_NEW_SURF_BIND),
 263    {0, 0, 0}
 264 };
 265
 266
 267 static void
 268 brw_update_dirty_count(struct dirty_bit_map *bit_map, int32_t bits)
 269 {
 270    int i;
 271
 272    for (i = 0; i < 32; i++) {
 273       if (bit_map[i].bit == 0)
 274          return;
 275
 276       if (bit_map[i].bit & bits)
 277          bit_map[i].count++;
 278    }
 279 }
 280
 281 static void
 282 brw_print_dirty_count(struct dirty_bit_map *bit_map, int32_t bits)
 283 {
 284    int i;
 285
 286    for (i = 0; i < 32; i++) {
 287       if (bit_map[i].bit == 0)
 288          return;
 289
 290       fprintf(stderr, "0x%08x: %12d (%s)\n",
 291               bit_map[i].bit, bit_map[i].count, bit_map[i].name);
 292    }
 293 }
 294
 295 /***********************************************************************
 296  * Emit all state:
 297  */
 298 void brw_validate_state( struct brw_context *brw )
 299 {
 300    struct intel_context *intel = &brw->intel;
 301    struct brw_state_flags *state = &brw->state.dirty;
 302    GLuint i;
 303
 304    brw_clear_validated_bos(brw);
 305
 306    state->mesa |= brw->intel.NewGLState;
 307    brw->intel.NewGLState = 0;
 308
 309    brw_add_validated_bo(brw, intel->batch->buf);
 310
 311    if (brw->emit_state_always) {
 312       state->mesa |= ~0;
 313       state->brw |= ~0;
 314    }
 315
 316    if (brw->fragment_program != brw->attribs.FragmentProgram->_Current) {
 317       brw->fragment_program = brw->attribs.FragmentProgram->_Current;
 318       brw->state.dirty.brw |= BRW_NEW_FRAGMENT_PROGRAM;
 319    }
 320
 321    if (brw->vertex_program != brw->attribs.VertexProgram->_Current) {
 322       brw->vertex_program = brw->attribs.VertexProgram->_Current;
 323       brw->state.dirty.brw |= BRW_NEW_VERTEX_PROGRAM;
 324    }
 325
 326    if (state->mesa == 0 &&
 327        state->cache == 0 &&
 328        state->brw == 0)
 329       return;
 330
 331    if (brw->state.dirty.brw & BRW_NEW_CONTEXT)
 332       brw_clear_batch_cache_flush(brw);
 333
 334    brw->intel.Fallback = 0;
 335
 336    /* do prepare stage for all atoms */
 337    for (i = 0; i < Elements(atoms); i++) {
 338       const struct brw_tracked_state *atom = brw->state.atoms[i];
 339
 340       if (brw->intel.Fallback)
 341          break;
 342
 343       if (check_state(state, &atom->dirty)) {
 344          if (atom->prepare) {
 345             atom->prepare(brw);
 346         }
 347       }
 348    }
 349 }
 350
 351
 352 void brw_upload_state(struct brw_context *brw)
 353 {
 354    struct brw_state_flags *state = &brw->state.dirty;
 355    int i;
 356    static int dirty_count = 0;
 357
 358    brw_clear_validated_bos(brw);
 359
 360    if (INTEL_DEBUG) {
 361       /* Debug version which enforces various sanity checks on the
 362        * state flags which are generated and checked to help ensure
 363        * state atoms are ordered correctly in the list.
 364        */
 365       struct brw_state_flags examined, prev;
 366       _mesa_memset(&examined, 0, sizeof(examined));
 367       prev = *state;
 368
 369       for (i = 0; i < brw->state.nr_atoms; i++) {
 370          const struct brw_tracked_state *atom = brw->state.atoms[i];
 371          struct brw_state_flags generated;
 372
 373          assert(atom->dirty.mesa ||
 374                 atom->dirty.brw ||
 375                 atom->dirty.cache);
 376
 377          if (brw->intel.Fallback)
 378             break;
 379
 380          if (check_state(state, &atom->dirty)) {
 381             if (atom->emit) {
 382                atom->emit( brw );
 383             }
 384          }
 385
 386          accumulate_state(&examined, &atom->dirty);
 387
 388          /* generated = (prev ^ state)
 389           * if (examined & generated)
 390           *     fail;
 391           */
 392          xor_states(&generated, &prev, state);
 393          assert(!check_state(&examined, &generated));
 394          prev = *state;
 395       }
 396    }
 397    else {
 398       for (i = 0; i < Elements(atoms); i++) {
 399          const struct brw_tracked_state *atom = brw->state.atoms[i];
 400
 401          if (brw->intel.Fallback)
 402             break;
 403
 404          if (check_state(state, &atom->dirty)) {
 405             if (atom->emit) {
 406                atom->emit( brw );
 407             }
 408          }
 409       }
 410    }
 411
 412    if (INTEL_DEBUG & DEBUG_STATE) {
 413       brw_update_dirty_count(mesa_bits, state->mesa);
 414       brw_update_dirty_count(brw_bits, state->brw);
 415       brw_update_dirty_count(cache_bits, state->cache);
 416       if (dirty_count++ % 1000 == 0) {
 417          brw_print_dirty_count(mesa_bits, state->mesa);
 418          brw_print_dirty_count(brw_bits, state->brw);
 419          brw_print_dirty_count(cache_bits, state->cache);
 420          fprintf(stderr, "\n");
 421       }
 422    }
 423
 424    if (!brw->intel.Fallback)
 425       memset(state, 0, sizeof(*state));
 426 }