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/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 boolean 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 boolean noop_get_query_result(struct pipe_context *ctx,
  73                                      struct pipe_query *query,
  74                                      boolean 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, boolean 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 boolean 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 void noop_resource_destroy(struct pipe_screen *screen,
 160                                   struct pipe_resource *resource)
 161 {
 162    struct noop_resource *nresource = (struct noop_resource *)resource;
 163
 164    FREE(nresource->data);
 165    FREE(resource);
 166 }
 167
 168
 169 /*
 170  * transfer
 171  */
 172 static void *noop_transfer_map(struct pipe_context *pipe,
 173                                struct pipe_resource *resource,
 174                                unsigned level,
 175                                enum pipe_transfer_usage usage,
 176                                const struct pipe_box *box,
 177                                struct pipe_transfer **ptransfer)
 178 {
 179    struct pipe_transfer *transfer;
 180    struct noop_resource *nresource = (struct noop_resource *)resource;
 181
 182    transfer = CALLOC_STRUCT(pipe_transfer);
 183    if (!transfer)
 184       return NULL;
 185    pipe_resource_reference(&transfer->resource, resource);
 186    transfer->level = level;
 187    transfer->usage = usage;
 188    transfer->box = *box;
 189    transfer->stride = 1;
 190    transfer->layer_stride = 1;
 191    *ptransfer = transfer;
 192
 193    return nresource->data;
 194 }
 195
 196 static void noop_transfer_flush_region(struct pipe_context *pipe,
 197                                        struct pipe_transfer *transfer,
 198                                        const struct pipe_box *box)
 199 {
 200 }
 201
 202 static void noop_transfer_unmap(struct pipe_context *pipe,
 203                                 struct pipe_transfer *transfer)
 204 {
 205    pipe_resource_reference(&transfer->resource, NULL);
 206    FREE(transfer);
 207 }
 208
 209 static void noop_buffer_subdata(struct pipe_context *pipe,
 210                                 struct pipe_resource *resource,
 211                                 unsigned usage, unsigned offset,
 212                                 unsigned size, const void *data)
 213 {
 214 }
 215
 216 static void noop_texture_subdata(struct pipe_context *pipe,
 217                                  struct pipe_resource *resource,
 218                                  unsigned level,
 219                                  unsigned usage,
 220                                  const struct pipe_box *box,
 221                                  const void *data,
 222                                  unsigned stride,
 223                                  unsigned layer_stride)
 224 {
 225 }
 226
 227
 228 /*
 229  * clear/copy
 230  */
 231 static void noop_clear(struct pipe_context *ctx, unsigned buffers,
 232                        const union pipe_color_union *color, double depth, unsigned stencil)
 233 {
 234 }
 235
 236 static void noop_clear_render_target(struct pipe_context *ctx,
 237                                      struct pipe_surface *dst,
 238                                      const union pipe_color_union *color,
 239                                      unsigned dstx, unsigned dsty,
 240                                      unsigned width, unsigned height,
 241                                      bool render_condition_enabled)
 242 {
 243 }
 244
 245 static void noop_clear_depth_stencil(struct pipe_context *ctx,
 246                                      struct pipe_surface *dst,
 247                                      unsigned clear_flags,
 248                                      double depth,
 249                                      unsigned stencil,
 250                                      unsigned dstx, unsigned dsty,
 251                                      unsigned width, unsigned height,
 252                                      bool render_condition_enabled)
 253 {
 254 }
 255
 256 static void noop_resource_copy_region(struct pipe_context *ctx,
 257                                       struct pipe_resource *dst,
 258                                       unsigned dst_level,
 259                                       unsigned dstx, unsigned dsty, unsigned dstz,
 260                                       struct pipe_resource *src,
 261                                       unsigned src_level,
 262                                       const struct pipe_box *src_box)
 263 {
 264 }
 265
 266
 267 static void noop_blit(struct pipe_context *ctx,
 268                       const struct pipe_blit_info *info)
 269 {
 270 }
 271
 272
 273 static void
 274 noop_flush_resource(struct pipe_context *ctx,
 275                     struct pipe_resource *resource)
 276 {
 277 }
 278
 279
 280 /*
 281  * context
 282  */
 283 static void noop_flush(struct pipe_context *ctx,
 284                        struct pipe_fence_handle **fence,
 285                        unsigned flags)
 286 {
 287    if (fence)
 288       *fence = NULL;
 289 }
 290
 291 static void noop_destroy_context(struct pipe_context *ctx)
 292 {
 293    if (ctx->stream_uploader)
 294       u_upload_destroy(ctx->stream_uploader);
 295
 296    FREE(ctx);
 297 }
 298
 299 static boolean noop_generate_mipmap(struct pipe_context *ctx,
 300                                     struct pipe_resource *resource,
 301                                     enum pipe_format format,
 302                                     unsigned base_level,
 303                                     unsigned last_level,
 304                                     unsigned first_layer,
 305                                     unsigned last_layer)
 306 {
 307    return true;
 308 }
 309
 310 static void noop_invalidate_resource(struct pipe_context *ctx,
 311                                      struct pipe_resource *resource)
 312 {
 313 }
 314
 315 static struct pipe_context *noop_create_context(struct pipe_screen *screen,
 316                                                 void *priv, unsigned flags)
 317 {
 318    struct pipe_context *ctx = CALLOC_STRUCT(pipe_context);
 319
 320    if (!ctx)
 321       return NULL;
 322
 323    ctx->screen = screen;
 324    ctx->priv = priv;
 325
 326    ctx->stream_uploader = u_upload_create_default(ctx);
 327    if (!ctx->stream_uploader) {
 328       FREE(ctx);
 329       return NULL;
 330    }
 331    ctx->const_uploader = ctx->stream_uploader;
 332
 333    ctx->destroy = noop_destroy_context;
 334    ctx->flush = noop_flush;
 335    ctx->clear = noop_clear;
 336    ctx->clear_render_target = noop_clear_render_target;
 337    ctx->clear_depth_stencil = noop_clear_depth_stencil;
 338    ctx->resource_copy_region = noop_resource_copy_region;
 339    ctx->generate_mipmap = noop_generate_mipmap;
 340    ctx->blit = noop_blit;
 341    ctx->flush_resource = noop_flush_resource;
 342    ctx->create_query = noop_create_query;
 343    ctx->destroy_query = noop_destroy_query;
 344    ctx->begin_query = noop_begin_query;
 345    ctx->end_query = noop_end_query;
 346    ctx->get_query_result = noop_get_query_result;
 347    ctx->set_active_query_state = noop_set_active_query_state;
 348    ctx->transfer_map = noop_transfer_map;
 349    ctx->transfer_flush_region = noop_transfer_flush_region;
 350    ctx->transfer_unmap = noop_transfer_unmap;
 351    ctx->buffer_subdata = noop_buffer_subdata;
 352    ctx->texture_subdata = noop_texture_subdata;
 353    ctx->invalidate_resource = noop_invalidate_resource;
 354    noop_init_state_functions(ctx);
 355
 356    return ctx;
 357 }
 358
 359
 360 /*
 361  * pipe_screen
 362  */
 363 static void noop_flush_frontbuffer(struct pipe_screen *_screen,
 364                                    struct pipe_resource *resource,
 365                                    unsigned level, unsigned layer,
 366                                    void *context_private, struct pipe_box *box)
 367 {
 368 }
 369
 370 static const char *noop_get_vendor(struct pipe_screen* pscreen)
 371 {
 372    return "X.Org";
 373 }
 374
 375 static const char *noop_get_device_vendor(struct pipe_screen* pscreen)
 376 {
 377    return "NONE";
 378 }
 379
 380 static const char *noop_get_name(struct pipe_screen* pscreen)
 381 {
 382    return "NOOP";
 383 }
 384
 385 static int noop_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 386 {
 387    struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
 388
 389    return screen->get_param(screen, param);
 390 }
 391
 392 static float noop_get_paramf(struct pipe_screen* pscreen,
 393                              enum pipe_capf param)
 394 {
 395    struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
 396
 397    return screen->get_paramf(screen, param);
 398 }
 399
 400 static int noop_get_shader_param(struct pipe_screen* pscreen,
 401                                  enum pipe_shader_type shader,
 402                                  enum pipe_shader_cap param)
 403 {
 404    struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
 405
 406    return screen->get_shader_param(screen, shader, param);
 407 }
 408
 409 static int noop_get_compute_param(struct pipe_screen *pscreen,
 410                                   enum pipe_shader_ir ir_type,
 411                                   enum pipe_compute_cap param,
 412                                   void *ret)
 413 {
 414    struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
 415
 416    return screen->get_compute_param(screen, ir_type, param, ret);
 417 }
 418
 419 static boolean noop_is_format_supported(struct pipe_screen* pscreen,
 420                                         enum pipe_format format,
 421                                         enum pipe_texture_target target,
 422                                         unsigned sample_count,
 423                                         unsigned usage)
 424 {
 425    struct pipe_screen *screen = ((struct noop_pipe_screen*)pscreen)->oscreen;
 426
 427    return screen->is_format_supported(screen, format, target, sample_count, usage);
 428 }
 429
 430 static uint64_t noop_get_timestamp(struct pipe_screen *pscreen)
 431 {
 432    return 0;
 433 }
 434
 435 static void noop_destroy_screen(struct pipe_screen *screen)
 436 {
 437    struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)screen;
 438    struct pipe_screen *oscreen = noop_screen->oscreen;
 439
 440    oscreen->destroy(oscreen);
 441    FREE(screen);
 442 }
 443
 444 static void noop_fence_reference(struct pipe_screen *screen,
 445                           struct pipe_fence_handle **ptr,
 446                           struct pipe_fence_handle *fence)
 447 {
 448 }
 449
 450 static boolean noop_fence_finish(struct pipe_screen *screen,
 451                                  struct pipe_context *ctx,
 452                                  struct pipe_fence_handle *fence,
 453                                  uint64_t timeout)
 454 {
 455    return true;
 456 }
 457
 458 static void noop_query_memory_info(struct pipe_screen *pscreen,
 459                                    struct pipe_memory_info *info)
 460 {
 461    struct noop_pipe_screen *noop_screen = (struct noop_pipe_screen*)pscreen;
 462    struct pipe_screen *screen = noop_screen->oscreen;
 463
 464    screen->query_memory_info(screen, info);
 465 }
 466
 467 struct pipe_screen *noop_screen_create(struct pipe_screen *oscreen)
 468 {
 469    struct noop_pipe_screen *noop_screen;
 470    struct pipe_screen *screen;
 471
 472    if (!debug_get_option_noop()) {
 473       return oscreen;
 474    }
 475
 476    noop_screen = CALLOC_STRUCT(noop_pipe_screen);
 477    if (!noop_screen) {
 478       return NULL;
 479    }
 480    noop_screen->oscreen = oscreen;
 481    screen = &noop_screen->pscreen;
 482
 483    screen->destroy = noop_destroy_screen;
 484    screen->get_name = noop_get_name;
 485    screen->get_vendor = noop_get_vendor;
 486    screen->get_device_vendor = noop_get_device_vendor;
 487    screen->get_param = noop_get_param;
 488    screen->get_shader_param = noop_get_shader_param;
 489    screen->get_compute_param = noop_get_compute_param;
 490    screen->get_paramf = noop_get_paramf;
 491    screen->is_format_supported = noop_is_format_supported;
 492    screen->context_create = noop_create_context;
 493    screen->resource_create = noop_resource_create;
 494    screen->resource_from_handle = noop_resource_from_handle;
 495    screen->resource_get_handle = noop_resource_get_handle;
 496    screen->resource_destroy = noop_resource_destroy;
 497    screen->flush_frontbuffer = noop_flush_frontbuffer;
 498    screen->get_timestamp = noop_get_timestamp;
 499    screen->fence_reference = noop_fence_reference;
 500    screen->fence_finish = noop_fence_finish;
 501    screen->query_memory_info = noop_query_memory_info;
 502
 503    return screen;
 504 }