src/gallium/auxiliary/driver_noop/noop_pipe.c

   1 /*
   2  * Copyright 2010 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23 #include <stdio.h>
  24 #include <errno.h>
  25 #include "pipe/p_defines.h"
  26 #include "pipe/p_state.h"
  27 #include "pipe/p_context.h"
  28 #include "pipe/p_screen.h"
  29 #include "util/u_memory.h"
  30 #include "util/u_inlines.h"
  31 #include "util/format/u_format.h"
  32 #include "util/u_upload_mgr.h"
  33 #include "noop_public.h"
  34
  35 DEBUG_GET_ONCE_BOOL_OPTION(noop, "GALLIUM_NOOP", false)
  36
  37 void noop_init_state_functions(struct pipe_context *ctx);
  38
  39 struct noop_pipe_screen {
  40    struct pipe_screen   pscreen;
  41    struct pipe_screen   *oscreen;
  42 };
  43
  44 /*
  45  * query
  46  */
  47 struct noop_query {
  48    unsigned     query;
  49 };
  50 static struct pipe_query *noop_create_query(struct pipe_context *ctx, unsigned query_type, unsigned index)
  51 {
  52    struct noop_query *query = CALLOC_STRUCT(noop_query);
  53
  54    return (struct pipe_query *)query;
  55 }
  56
  57 static void noop_destroy_query(struct pipe_context *ctx, struct pipe_query *query)
  58 {
  59    FREE(query);
  60 }
  61
  62 static bool noop_begin_query(struct pipe_context *ctx, struct pipe_query *query)
  63 {
  64    return true;
  65 }
  66
  67 static bool noop_end_query(struct pipe_context *ctx, struct pipe_query *query)
  68 {
  69    return true;
  70 }
  71
  72 static bool noop_get_query_result(struct pipe_context *ctx,
  73                                   struct pipe_query *query,
  74                                   bool wait,
  75                                   union pipe_query_result *vresult)
  76 {
  77    uint64_t *result = (uint64_t*)vresult;
  78
  79    *result = 0;
  80    return true;
  81 }
  82
  83 static void
  84 noop_set_active_query_state(struct pipe_context *pipe, bool enable)
  85 {
  86 }
  87
  88
  89 /*
  90  * resource
  91  */
  92 struct noop_resource {
  93    struct pipe_resource base;
  94    unsigned             size;
  95    char                 *data;
  96    struct sw_displaytarget      *dt;
  97 };
  98
  99 static struct pipe_resource *noop_resource_create(struct pipe_screen *screen,
 100                                                   const struct pipe_resource *templ)
 101 {
 102    struct noop_resource *nresource;
 103    unsigned stride;
 104
 105    nresource = CALLOC_STRUCT(noop_resource);
 106    if (!nresource)
 107       return NULL;
 108
 109    stride = util_format_get_stride(templ->format, templ->width0);
 110    nresource->base = *templ;
 111    nresource->base.screen = screen;
 112    nresource->size = stride * templ->height0 * templ->depth0;
 113    nresource->data = MALLOC(nresource->size);
 114    pipe_reference_init(&nresource->base.reference, 1);
 115    if (nresource->data == NULL) {
 116       FREE(nresource);
 117       return NULL;
 118    }
 119    return &nresource->base;
 120 }
 121
 122 static struct pipe_resource *noop_resource_from_handle(struct pipe_screen *screen,
 123                                                        const struct pipe_resource *templ,
 124                                                        struct winsys_handle *handle,
 125                                                        unsigned usage)
 126 {
 127    struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)screen;
 128    struct pipe_screen *oscreen = noop_screen->oscreen;
 129    struct pipe_resource *result;
 130    struct pipe_resource *noop_resource;
 131
 132    result = oscreen->resource_from_handle(oscreen, templ, handle, usage);
 133    noop_resource = noop_resource_create(screen, result);
 134    pipe_resource_reference(&result, NULL);
 135    return noop_resource;
 136 }
 137
 138 static bool noop_resource_get_handle(struct pipe_screen *pscreen,
 139                                      struct pipe_context *ctx,
 140                                      struct pipe_resource *resource,
 141                                      struct winsys_handle *handle,
 142                                      unsigned usage)
 143 {
 144    struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)pscreen;
 145    struct pipe_screen *screen = noop_screen->oscreen;
 146    struct pipe_resource *tex;
 147    bool result;
 148
 149    /* resource_get_handle musn't fail. Just create something and return it. */
 150    tex = screen->resource_create(screen, resource);
 151    if (!tex)
 152       return false;
 153
 154    result = screen->resource_get_handle(screen, NULL, tex, handle, usage);
 155    pipe_resource_reference(&tex, NULL);
 156    return result;
 157 }
 158
 159 static bool noop_resource_get_param(struct pipe_screen *pscreen,
 160                                     struct pipe_context *ctx,
 161                                     struct pipe_resource *resource,
 162                                     unsigned plane,
 163                                     unsigned layer,
 164                                     enum pipe_resource_param param,
 165                                     unsigned handle_usage,
 166                                     uint64_t *value)
 167 {
 168    struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)pscreen;
 169    struct pipe_screen *screen = noop_screen->oscreen;
 170    struct pipe_resource *tex;
 171    bool result;
 172
 173    /* resource_get_param mustn't fail. Just create something and return it. */
 174    tex = screen->resource_create(screen, resource);
 175    if (!tex)
 176       return false;
 177
 178    result = screen->resource_get_param(screen, NULL, tex, 0, 0, param,
 179                                        handle_usage, value);
 180    pipe_resource_reference(&tex, NULL);
 181    return result;
 182 }
 183
 184 static void noop_resource_destroy(struct pipe_screen *screen,
 185                                   struct pipe_resource *resource)
 186 {
 187    struct noop_resource *nresource = (struct noop_resource *)resource;
 188
 189    FREE(nresource->data);
 190    FREE(resource);
 191 }
 192
 193
 194 /*
 195  * transfer
 196  */
 197 static void *noop_transfer_map(struct pipe_context *pipe,
 198                                struct pipe_resource *resource,
 199                                unsigned level,
 200                                unsigned usage,
 201                                const struct pipe_box *box,
 202                                struct pipe_transfer **ptransfer)
 203 {
 204    struct pipe_transfer *transfer;
 205    struct noop_resource *nresource = (struct noop_resource *)resource;
 206
 207    transfer = CALLOC_STRUCT(pipe_transfer);
 208    if (!transfer)
 209       return NULL;
 210    pipe_resource_reference(&transfer->resource, resource);
 211    transfer->level = level;
 212    transfer->usage = usage;
 213    transfer->box = *box;
 214    transfer->stride = 1;
 215    transfer->layer_stride = 1;
 216    *ptransfer = transfer;
 217
 218    return nresource->data;
 219 }
 220
 221 static void noop_transfer_flush_region(struct pipe_context *pipe,
 222                                        struct pipe_transfer *transfer,
 223                                        const struct pipe_box *box)
 224 {
 225 }
 226
 227 static void noop_transfer_unmap(struct pipe_context *pipe,
 228                                 struct pipe_transfer *transfer)
 229 {
 230    pipe_resource_reference(&transfer->resource, NULL);
 231    FREE(transfer);
 232 }
 233
 234 static void noop_buffer_subdata(struct pipe_context *pipe,
 235                                 struct pipe_resource *resource,
 236                                 unsigned usage, unsigned offset,
 237                                 unsigned size, const void *data)
 238 {
 239 }
 240
 241 static void noop_texture_subdata(struct pipe_context *pipe,
 242                                  struct pipe_resource *resource,
 243                                  unsigned level,
 244                                  unsigned usage,
 245                                  const struct pipe_box *box,
 246                                  const void *data,
 247                                  unsigned stride,
 248                                  unsigned layer_stride)
 249 {
 250 }
 251
 252
 253 /*
 254  * clear/copy
 255  */
 256 static void noop_clear(struct pipe_context *ctx, unsigned buffers,
 257                        const union pipe_color_union *color, double depth, unsigned stencil)
 258 {
 259 }
 260
 261 static void noop_clear_render_target(struct pipe_context *ctx,
 262                                      struct pipe_surface *dst,
 263                                      const union pipe_color_union *color,
 264                                      unsigned dstx, unsigned dsty,
 265                                      unsigned width, unsigned height,
 266                                      bool render_condition_enabled)
 267 {
 268 }
 269
 270 static void noop_clear_depth_stencil(struct pipe_context *ctx,
 271                                      struct pipe_surface *dst,
 272                                      unsigned clear_flags,
 273                                      double depth,
 274                                      unsigned stencil,
 275                                      unsigned dstx, unsigned dsty,
 276                                      unsigned width, unsigned height,
 277                                      bool render_condition_enabled)
 278 {
 279 }
 280
 281 static void noop_resource_copy_region(struct pipe_context *ctx,
 282                                       struct pipe_resource *dst,
 283                                       unsigned dst_level,
 284                                       unsigned dstx, unsigned dsty, unsigned dstz,
 285                                       struct pipe_resource *src,
 286                                       unsigned src_level,
 287                                       const struct pipe_box *src_box)
 288 {
 289 }
 290
 291
 292 static void noop_blit(struct pipe_context *ctx,
 293                       const struct pipe_blit_info *info)
 294 {
 295 }
 296
 297
 298 static void
 299 noop_flush_resource(struct pipe_context *ctx,
 300                     struct pipe_resource *resource)
 301 {
 302 }
 303
 304
 305 /*
 306  * context
 307  */
 308 static void noop_flush(struct pipe_context *ctx,
 309                        struct pipe_fence_handle **fence,
 310                        unsigned flags)
 311 {
 312    if (fence)
 313       *fence = NULL;
 314 }
 315
 316 static void noop_destroy_context(struct pipe_context *ctx)
 317 {
 318    if (ctx->stream_uploader)
 319       u_upload_destroy(ctx->stream_uploader);
 320
 321    FREE(ctx);
 322 }
 323
 324 static bool noop_generate_mipmap(struct pipe_context *ctx,
 325                                  struct pipe_resource *resource,
 326                                  enum pipe_format format,
 327                                  unsigned base_level,
 328                                  unsigned last_level,
 329                                  unsigned first_layer,
 330                                  unsigned last_layer)
 331 {
 332    return true;
 333 }
 334
 335 static void noop_invalidate_resource(struct pipe_context *ctx,
 336                                      struct pipe_resource *resource)
 337 {
 338 }
 339
 340 static void noop_set_context_param(struct pipe_context *ctx,
 341                                    enum pipe_context_param param,
 342                                    unsigned value)
 343 {
 344 }
 345
 346 static struct pipe_context *noop_create_context(struct pipe_screen *screen,
 347                                                 void *priv, unsigned flags)
 348 {
 349    struct pipe_context *ctx = CALLOC_STRUCT(pipe_context);
 350
 351    if (!ctx)
 352       return NULL;
 353
 354    ctx->screen = screen;
 355    ctx->priv = priv;
 356
 357    ctx->stream_uploader = u_upload_create_default(ctx);
 358    if (!ctx->stream_uploader) {
 359       FREE(ctx);
 360       return NULL;
 361    }
 362    ctx->const_uploader = ctx->stream_uploader;
 363
 364    ctx->destroy = noop_destroy_context;
 365    ctx->flush = noop_flush;
 366    ctx->clear = noop_clear;
 367    ctx->clear_render_target = noop_clear_render_target;
 368    ctx->clear_depth_stencil = noop_clear_depth_stencil;
 369    ctx->resource_copy_region = noop_resource_copy_region;
 370    ctx->generate_mipmap = noop_generate_mipmap;
 371    ctx->blit = noop_blit;
 372    ctx->flush_resource = noop_flush_resource;
 373    ctx->create_query = noop_create_query;
 374    ctx->destroy_query = noop_destroy_query;
 375    ctx->begin_query = noop_begin_query;
 376    ctx->end_query = noop_end_query;
 377    ctx->get_query_result = noop_get_query_result;
 378    ctx->set_active_query_state = noop_set_active_query_state;
 379    ctx->transfer_map = noop_transfer_map;
 380    ctx->transfer_flush_region = noop_transfer_flush_region;
 381    ctx->transfer_unmap = noop_transfer_unmap;
 382    ctx->buffer_subdata = noop_buffer_subdata;
 383    ctx->texture_subdata = noop_texture_subdata;
 384    ctx->invalidate_resource = noop_invalidate_resource;
 385    ctx->set_context_param = noop_set_context_param;
 386    noop_init_state_functions(ctx);
 387
 388    return ctx;
 389 }
 390
 391
 392 /*
 393  * pipe_screen
 394  */
 395 static void noop_flush_frontbuffer(struct pipe_screen *_screen,
 396                                    struct pipe_resource *resource,
 397                                    unsigned level, unsigned layer,
 398                                    void *context_private, struct pipe_box *box)
 399 {
 400 }
 401
 402 static const char *noop_get_vendor(struct pipe_screen* pscreen)
 403 {
 404    return "X.Org";
 405 }
 406
 407 static const char *noop_get_device_vendor(struct pipe_screen* pscreen)
 408 {
 409    return "NONE";
 410 }
 411
 412 static const char *noop_get_name(struct pipe_screen* pscreen)
 413 {
 414    return "NOOP";
 415 }
 416
 417 static int noop_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 418 {
 419    struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
 420
 421    return screen->get_param(screen, param);
 422 }
 423
 424 static float noop_get_paramf(struct pipe_screen* pscreen,
 425                              enum pipe_capf param)
 426 {
 427    struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
 428
 429    return screen->get_paramf(screen, param);
 430 }
 431
 432 static int noop_get_shader_param(struct pipe_screen* pscreen,
 433                                  enum pipe_shader_type shader,
 434                                  enum pipe_shader_cap param)
 435 {
 436    struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
 437
 438    return screen->get_shader_param(screen, shader, param);
 439 }
 440
 441 static int noop_get_compute_param(struct pipe_screen *pscreen,
 442                                   enum pipe_shader_ir ir_type,
 443                                   enum pipe_compute_cap param,
 444                                   void *ret)
 445 {
 446    struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
 447
 448    return screen->get_compute_param(screen, ir_type, param, ret);
 449 }
 450
 451 static bool noop_is_format_supported(struct pipe_screen* pscreen,
 452                                      enum pipe_format format,
 453                                      enum pipe_texture_target target,
 454                                      unsigned sample_count,
 455                                      unsigned storage_sample_count,
 456                                      unsigned usage)
 457 {
 458    struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
 459
 460    return screen->is_format_supported(screen, format, target, sample_count,
 461                                       storage_sample_count, usage);
 462 }
 463
 464 static uint64_t noop_get_timestamp(struct pipe_screen *pscreen)
 465 {
 466    return 0;
 467 }
 468
 469 static void noop_destroy_screen(struct pipe_screen *screen)
 470 {
 471    struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)screen;
 472    struct pipe_screen *oscreen = noop_screen->oscreen;
 473
 474    oscreen->destroy(oscreen);
 475    FREE(screen);
 476 }
 477
 478 static void noop_fence_reference(struct pipe_screen *screen,
 479                           struct pipe_fence_handle **ptr,
 480                           struct pipe_fence_handle *fence)
 481 {
 482 }
 483
 484 static bool noop_fence_finish(struct pipe_screen *screen,
 485                               struct pipe_context *ctx,
 486                               struct pipe_fence_handle *fence,
 487                               uint64_t timeout)
 488 {
 489    return true;
 490 }
 491
 492 static void noop_query_memory_info(struct pipe_screen *pscreen,
 493                                    struct pipe_memory_info *info)
 494 {
 495    struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)pscreen;
 496    struct pipe_screen *screen = noop_screen->oscreen;
 497
 498    screen->query_memory_info(screen, info);
 499 }
 500
 501 static struct disk_cache *noop_get_disk_shader_cache(struct pipe_screen *pscreen)
 502 {
 503    struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
 504
 505    return screen->get_disk_shader_cache(screen);
 506 }
 507
 508 static const void *noop_get_compiler_options(struct pipe_screen *pscreen,
 509                                              enum pipe_shader_ir ir,
 510                                              enum pipe_shader_type shader)
 511 {
 512    struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
 513
 514    return screen->get_compiler_options(screen, ir, shader);
 515 }
 516
 517 static void noop_finalize_nir(struct pipe_screen *pscreen, void *nir, bool optimize)
 518 {
 519    struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
 520
 521    screen->finalize_nir(screen, nir, optimize);
 522 }
 523
 524 struct pipe_screen *noop_screen_create(struct pipe_screen *oscreen)
 525 {
 526    struct noop_pipe_screen *noop_screen;
 527    struct pipe_screen *screen;
 528
 529    if (!debug_get_option_noop()) {
 530       return oscreen;
 531    }
 532
 533    noop_screen = CALLOC_STRUCT(noop_pipe_screen);
 534    if (!noop_screen) {
 535       return NULL;
 536    }
 537    noop_screen->oscreen = oscreen;
 538    screen = &noop_screen->pscreen;
 539
 540    screen->destroy = noop_destroy_screen;
 541    screen->get_name = noop_get_name;
 542    screen->get_vendor = noop_get_vendor;
 543    screen->get_device_vendor = noop_get_device_vendor;
 544    screen->get_param = noop_get_param;
 545    screen->get_shader_param = noop_get_shader_param;
 546    screen->get_compute_param = noop_get_compute_param;
 547    screen->get_paramf = noop_get_paramf;
 548    screen->is_format_supported = noop_is_format_supported;
 549    screen->context_create = noop_create_context;
 550    screen->resource_create = noop_resource_create;
 551    screen->resource_from_handle = noop_resource_from_handle;
 552    screen->resource_get_handle = noop_resource_get_handle;
 553    if (oscreen->resource_get_param)
 554       screen->resource_get_param = noop_resource_get_param;
 555    screen->resource_destroy = noop_resource_destroy;
 556    screen->flush_frontbuffer = noop_flush_frontbuffer;
 557    screen->get_timestamp = noop_get_timestamp;
 558    screen->fence_reference = noop_fence_reference;
 559    screen->fence_finish = noop_fence_finish;
 560    screen->query_memory_info = noop_query_memory_info;
 561    screen->get_disk_shader_cache = noop_get_disk_shader_cache;
 562    screen->get_compiler_options = noop_get_compiler_options;
 563    screen->finalize_nir = noop_finalize_nir;
 564
 565    return screen;
 566 }