src/gallium/drivers/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 "noop_public.h"
  33 #include "state_tracker/sw_winsys.h"
  34
  35 void noop_init_state_functions(struct pipe_context *ctx);
  36
  37 /*
  38  * query
  39  */
  40 struct noop_query {
  41         unsigned        query;
  42 };
  43 static struct pipe_query *noop_create_query(struct pipe_context *ctx, unsigned query_type)
  44 {
  45         struct noop_query *query = CALLOC_STRUCT(noop_query);
  46
  47         return (struct pipe_query *)query;
  48 }
  49
  50 static void noop_destroy_query(struct pipe_context *ctx, struct pipe_query *query)
  51 {
  52         FREE(query);
  53 }
  54
  55 static void noop_begin_query(struct pipe_context *ctx, struct pipe_query *query)
  56 {
  57 }
  58
  59 static void noop_end_query(struct pipe_context *ctx, struct pipe_query *query)
  60 {
  61 }
  62
  63 static boolean noop_get_query_result(struct pipe_context *ctx,
  64                                         struct pipe_query *query,
  65                                         boolean wait, void *vresult)
  66 {
  67         uint64_t *result = (uint64_t*)vresult;
  68
  69         *result = 0;
  70         return TRUE;
  71 }
  72
  73
  74 /*
  75  * resource
  76  */
  77 struct noop_resource {
  78         struct pipe_resource    base;
  79         unsigned                size;
  80         char                    *data;
  81         struct sw_displaytarget *dt;
  82 };
  83
  84 static unsigned noop_is_resource_referenced(struct pipe_context *pipe,
  85                                                 struct pipe_resource *resource,
  86                                                 unsigned level, int layer)
  87 {
  88         return PIPE_UNREFERENCED;
  89 }
  90
  91 static struct pipe_resource *noop_resource_create(struct pipe_screen *screen,
  92                                                 const struct pipe_resource *templ)
  93 {
  94         struct noop_resource *nresource;
  95         unsigned stride;
  96
  97         nresource = CALLOC_STRUCT(noop_resource);
  98         if (nresource == NULL)
  99                 return NULL;
 100
 101         stride = util_format_get_stride(templ->format, templ->width0);
 102         nresource->base = *templ;
 103         nresource->base.screen = screen;
 104         nresource->size = stride * templ->height0 * templ->depth0;
 105         nresource->data = malloc(nresource->size);
 106         pipe_reference_init(&nresource->base.reference, 1);
 107         if (nresource->data == NULL) {
 108                 FREE(nresource);
 109                 return NULL;
 110         }
 111 #if 0
 112         if (nresource->base.bind & (PIPE_BIND_DISPLAY_TARGET |
 113                                         PIPE_BIND_SCANOUT |
 114                                         PIPE_BIND_SHARED)) {
 115                 struct sw_winsys *winsys = (struct sw_winsys *)screen->winsys;
 116                 unsigned stride;
 117
 118                 nresource->dt = winsys->displaytarget_create(winsys, nresource->base.bind,
 119                                                                 nresource->base.format,
 120                                                                 nresource->base.width0,
 121                                                                 nresource->base.height0,
 122                                                                 16, &stride);
 123         }
 124 #endif
 125         return &nresource->base;
 126 }
 127
 128 static struct pipe_resource *noop_resource_from_handle(struct pipe_screen * screen,
 129                                                         const struct pipe_resource *templ,
 130                                                         struct winsys_handle *whandle)
 131 {
 132         struct sw_winsys *winsys = (struct sw_winsys *)screen->winsys;
 133         struct noop_resource *nresource;
 134         struct sw_displaytarget *dt;
 135         unsigned stride;
 136
 137         dt = winsys->displaytarget_from_handle(winsys, templ, whandle, &stride);
 138         if (dt == NULL) {
 139                 return NULL;
 140         }
 141         nresource = (struct noop_resource *)noop_resource_create(screen, templ);
 142         nresource->dt = dt;
 143         return &nresource->base;
 144 }
 145
 146 static boolean noop_resource_get_handle(struct pipe_screen *screen,
 147                                         struct pipe_resource *resource,
 148                                         struct winsys_handle *handle)
 149 {
 150         struct sw_winsys *winsys = (struct sw_winsys *)screen->winsys;
 151         struct noop_resource *nresource = (struct noop_resource *)resource;
 152
 153         if (nresource->dt == NULL)
 154                 return FALSE;
 155
 156         return winsys->displaytarget_get_handle(winsys, nresource->dt, handle);
 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         if (nresource->dt) {
 165                 /* display target */
 166                 struct sw_winsys *winsys = (struct sw_winsys *)screen->winsys;
 167                 winsys->displaytarget_destroy(winsys, nresource->dt);
 168         }
 169         free(nresource->data);
 170         FREE(resource);
 171 }
 172
 173 static struct pipe_resource *noop_user_buffer_create(struct pipe_screen *screen,
 174                                                         void *ptr, unsigned bytes,
 175                                                         unsigned bind)
 176 {
 177         struct pipe_resource templ;
 178
 179         templ.target = PIPE_BUFFER;
 180         templ.format = PIPE_FORMAT_R8_UNORM;
 181         templ.usage = PIPE_USAGE_IMMUTABLE;
 182         templ.bind = bind;
 183         templ.width0 = bytes;
 184         templ.height0 = 1;
 185         templ.depth0 = 1;
 186         templ.flags = 0;
 187         return noop_resource_create(screen, &templ);
 188 }
 189
 190
 191 /*
 192  * transfer
 193  */
 194 static struct pipe_transfer *noop_get_transfer(struct pipe_context *context,
 195                                                 struct pipe_resource *resource,
 196                                                 unsigned level,
 197                                                 enum pipe_transfer_usage usage,
 198                                                 const struct pipe_box *box)
 199 {
 200         struct pipe_transfer *transfer;
 201
 202         transfer = CALLOC_STRUCT(pipe_transfer);
 203         if (transfer == NULL)
 204                 return NULL;
 205         pipe_resource_reference(&transfer->resource, resource);
 206         transfer->level = level;
 207         transfer->usage = usage;
 208         transfer->box = *box;
 209         transfer->stride = 1;
 210         transfer->layer_stride = 1;
 211         return transfer;
 212 }
 213
 214 static void *noop_transfer_map(struct pipe_context *pipe,
 215                                 struct pipe_transfer *transfer)
 216 {
 217         struct noop_resource *nresource = (struct noop_resource *)transfer->resource;
 218
 219         return nresource->data;
 220 }
 221
 222 static void noop_transfer_flush_region(struct pipe_context *pipe,
 223                                         struct pipe_transfer *transfer,
 224                                         const struct pipe_box *box)
 225 {
 226 }
 227
 228 static void noop_transfer_unmap(struct pipe_context *pipe,
 229                                 struct pipe_transfer *transfer)
 230 {
 231 }
 232
 233 static void noop_transfer_destroy(struct pipe_context *pipe,
 234                                         struct pipe_transfer *transfer)
 235 {
 236         pipe_resource_reference(&transfer->resource, NULL);
 237         FREE(transfer);
 238 }
 239
 240 static void noop_transfer_inline_write(struct pipe_context *pipe,
 241                                         struct pipe_resource *resource,
 242                                         unsigned level,
 243                                         unsigned usage,
 244                                         const struct pipe_box *box,
 245                                         const void *data,
 246                                         unsigned stride,
 247                                         unsigned layer_stride)
 248 {
 249 }
 250
 251
 252 /*
 253  * clear/copy
 254  */
 255 static void noop_clear(struct pipe_context *ctx, unsigned buffers,
 256                         const float *rgba, double depth, unsigned stencil)
 257 {
 258 }
 259
 260 static void noop_clear_render_target(struct pipe_context *ctx,
 261                                      struct pipe_surface *dst,
 262                                      const float *rgba,
 263                                      unsigned dstx, unsigned dsty,
 264                                      unsigned width, unsigned height)
 265 {
 266 }
 267
 268 static void noop_clear_depth_stencil(struct pipe_context *ctx,
 269                                      struct pipe_surface *dst,
 270                                      unsigned clear_flags,
 271                                      double depth,
 272                                      unsigned stencil,
 273                                      unsigned dstx, unsigned dsty,
 274                                      unsigned width, unsigned height)
 275 {
 276 }
 277
 278 static void noop_resource_copy_region(struct pipe_context *ctx,
 279                                       struct pipe_resource *dst,
 280                                       unsigned dst_level,
 281                                       unsigned dstx, unsigned dsty, unsigned dstz,
 282                                       struct pipe_resource *src,
 283                                       unsigned src_level,
 284                                       const struct pipe_box *src_box)
 285 {
 286 }
 287
 288
 289 /*
 290  * context
 291  */
 292 static void noop_flush(struct pipe_context *ctx, unsigned flags,
 293                         struct pipe_fence_handle **fence)
 294 {
 295 }
 296
 297 static void noop_destroy_context(struct pipe_context *ctx)
 298 {
 299         FREE(ctx);
 300 }
 301
 302 static struct pipe_context *noop_create_context(struct pipe_screen *screen, void *priv)
 303 {
 304         struct pipe_context *ctx = CALLOC_STRUCT(pipe_context);
 305
 306         if (ctx == NULL)
 307                 return NULL;
 308         ctx->winsys = screen->winsys;
 309         ctx->screen = screen;
 310         ctx->priv = priv;
 311         ctx->destroy = noop_destroy_context;
 312         ctx->flush = noop_flush;
 313         ctx->clear = noop_clear;
 314         ctx->clear_render_target = noop_clear_render_target;
 315         ctx->clear_depth_stencil = noop_clear_depth_stencil;
 316         ctx->resource_copy_region = noop_resource_copy_region;
 317         ctx->create_query = noop_create_query;
 318         ctx->destroy_query = noop_destroy_query;
 319         ctx->begin_query = noop_begin_query;
 320         ctx->end_query = noop_end_query;
 321         ctx->get_query_result = noop_get_query_result;
 322         ctx->get_transfer = noop_get_transfer;
 323         ctx->transfer_map = noop_transfer_map;
 324         ctx->transfer_flush_region = noop_transfer_flush_region;
 325         ctx->transfer_unmap = noop_transfer_unmap;
 326         ctx->transfer_destroy = noop_transfer_destroy;
 327         ctx->transfer_inline_write = noop_transfer_inline_write;
 328         ctx->is_resource_referenced = noop_is_resource_referenced;
 329         noop_init_state_functions(ctx);
 330
 331         return ctx;
 332 }
 333
 334
 335 /*
 336  * pipe_screen
 337  */
 338 static void noop_flush_frontbuffer(struct pipe_screen *_screen,
 339                                    struct pipe_resource *resource,
 340                                    unsigned level, unsigned layer,
 341                                    void *context_private)
 342 {
 343 }
 344
 345 static const char *noop_get_vendor(struct pipe_screen* pscreen)
 346 {
 347         return "X.Org";
 348 }
 349
 350 static const char *noop_get_name(struct pipe_screen* pscreen)
 351 {
 352         return "NOOP";
 353 }
 354
 355 static int noop_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 356 {
 357         switch (param) {
 358         /* Supported features (boolean caps). */
 359         case PIPE_CAP_NPOT_TEXTURES:
 360         case PIPE_CAP_TWO_SIDED_STENCIL:
 361         case PIPE_CAP_GLSL:
 362         case PIPE_CAP_OCCLUSION_QUERY:
 363         case PIPE_CAP_POINT_SPRITE:
 364         case PIPE_CAP_ANISOTROPIC_FILTER:
 365         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 366         case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
 367         case PIPE_CAP_TEXTURE_SHADOW_MAP:
 368         case PIPE_CAP_TEXTURE_SWIZZLE:
 369         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 370
 371           return 1;
 372         case PIPE_CAP_DUAL_SOURCE_BLEND:
 373
 374         case PIPE_CAP_SM3:
 375         case PIPE_CAP_INDEP_BLEND_ENABLE:
 376         case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 377         case PIPE_CAP_DEPTH_CLAMP:
 378         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 379         case PIPE_CAP_TIMER_QUERY:
 380         case PIPE_CAP_STREAM_OUTPUT:
 381         case PIPE_CAP_PRIMITIVE_RESTART:
 382         case PIPE_CAP_INDEP_BLEND_FUNC:
 383                 return 0;
 384
 385         /* Texturing. */
 386         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 387         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 388         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 389                 return 14;
 390         case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
 391                 return 16;
 392         case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 393         case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 394                 return 16;
 395
 396         /* Render targets. */
 397         case PIPE_CAP_MAX_RENDER_TARGETS:
 398                 return 8;
 399
 400         /* Fragment coordinate conventions. */
 401         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 402         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 403                 return 1;
 404         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 405         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 406                 return 0;
 407
 408         default:
 409                 return 0;
 410         }
 411 }
 412
 413 static float noop_get_paramf(struct pipe_screen* pscreen, enum pipe_cap param)
 414 {
 415         switch (param) {
 416         case PIPE_CAP_MAX_LINE_WIDTH:
 417         case PIPE_CAP_MAX_LINE_WIDTH_AA:
 418         case PIPE_CAP_MAX_POINT_WIDTH:
 419         case PIPE_CAP_MAX_POINT_WIDTH_AA:
 420                 return 8192.0f;
 421         case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 422                 return 16.0f;
 423         case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 424                 return 16.0f;
 425         default:
 426                 return 0.0f;
 427         }
 428 }
 429
 430 static int noop_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enum pipe_shader_cap param)
 431 {
 432         switch(shader)
 433         {
 434         case PIPE_SHADER_FRAGMENT:
 435         case PIPE_SHADER_VERTEX:
 436         case PIPE_SHADER_GEOMETRY:
 437                 break;
 438         default:
 439                 return 0;
 440         }
 441
 442         switch (param) {
 443         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 444         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 445         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 446         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 447                 return 16384;
 448         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 449                 return 8;
 450         case PIPE_SHADER_CAP_MAX_INPUTS:
 451                 return 16;
 452         case PIPE_SHADER_CAP_MAX_TEMPS:
 453                 return 256;
 454         case PIPE_SHADER_CAP_MAX_ADDRS:
 455                 return 1;
 456         case PIPE_SHADER_CAP_MAX_CONSTS:
 457                 return 256;
 458         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 459                 return 1;
 460         case PIPE_SHADER_CAP_MAX_PREDS:
 461                 return 0;
 462         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 463                 return 1;
 464         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 465         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 466         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 467         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 468                 return 1;
 469         default:
 470                 return 0;
 471         }
 472 }
 473
 474 static boolean noop_is_format_supported(struct pipe_screen* screen,
 475                                         enum pipe_format format,
 476                                         enum pipe_texture_target target,
 477                                         unsigned sample_count,
 478                                         unsigned usage,
 479                                         unsigned geom_flags)
 480 {
 481         return true;
 482 }
 483
 484 static void noop_destroy_screen(struct pipe_screen *screen)
 485 {
 486         FREE(screen);
 487 }
 488
 489 struct pipe_screen *noop_screen_create(struct sw_winsys *winsys)
 490 {
 491         struct pipe_screen *screen;
 492
 493         screen = CALLOC_STRUCT(pipe_screen);
 494         if (screen == NULL) {
 495                 return NULL;
 496         }
 497
 498         screen->winsys = (struct pipe_winsys*)winsys;
 499         screen->destroy = noop_destroy_screen;
 500         screen->get_name = noop_get_name;
 501         screen->get_vendor = noop_get_vendor;
 502         screen->get_param = noop_get_param;
 503         screen->get_shader_param = noop_get_shader_param;
 504         screen->get_paramf = noop_get_paramf;
 505         screen->is_format_supported = noop_is_format_supported;
 506         screen->context_create = noop_create_context;
 507         screen->resource_create = noop_resource_create;
 508         screen->resource_from_handle = noop_resource_from_handle;
 509         screen->resource_get_handle = noop_resource_get_handle;
 510         screen->resource_destroy = noop_resource_destroy;
 511         screen->user_buffer_create = noop_user_buffer_create;
 512         screen->flush_frontbuffer = noop_flush_frontbuffer;
 513
 514         return screen;
 515 }