src/gallium/drivers/r300/r300_screen.c

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   3  * Copyright 2010 Marek Olšák <maraeo@gmail.com>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  22  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  23
  24 #include "util/u_format.h"
  25 #include "util/u_format_s3tc.h"
  26 #include "util/u_memory.h"
  27 #include "os/os_time.h"
  28
  29 #include "r300_context.h"
  30 #include "r300_texture.h"
  31 #include "r300_screen_buffer.h"
  32 #include "r300_state_inlines.h"
  33 #include "r300_winsys.h"
  34 #include "r300_public.h"
  35
  36 #include "draw/draw_context.h"
  37
  38 /* Return the identifier behind whom the brave coders responsible for this
  39  * amalgamation of code, sweat, and duct tape, routinely obscure their names.
  40  *
  41  * ...I should have just put "Corbin Simpson", but I'm not that cool.
  42  *
  43  * (Or egotistical. Yet.) */
  44 static const char* r300_get_vendor(struct pipe_screen* pscreen)
  45 {
  46     return "X.Org R300 Project";
  47 }
  48
  49 static const char* chip_families[] = {
  50     "ATI R300",
  51     "ATI R350",
  52     "ATI R360",
  53     "ATI RV350",
  54     "ATI RV370",
  55     "ATI RV380",
  56     "ATI R420",
  57     "ATI R423",
  58     "ATI R430",
  59     "ATI R480",
  60     "ATI R481",
  61     "ATI RV410",
  62     "ATI RS400",
  63     "ATI RC410",
  64     "ATI RS480",
  65     "ATI RS482",
  66     "ATI RS600",
  67     "ATI RS690",
  68     "ATI RS740",
  69     "ATI RV515",
  70     "ATI R520",
  71     "ATI RV530",
  72     "ATI R580",
  73     "ATI RV560",
  74     "ATI RV570"
  75 };
  76
  77 static const char* r300_get_name(struct pipe_screen* pscreen)
  78 {
  79     struct r300_screen* r300screen = r300_screen(pscreen);
  80
  81     return chip_families[r300screen->caps.family];
  82 }
  83
  84 static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
  85 {
  86     struct r300_screen* r300screen = r300_screen(pscreen);
  87     boolean is_r500 = r300screen->caps.is_r500;
  88
  89     switch (param) {
  90         /* Supported features (boolean caps). */
  91         case PIPE_CAP_NPOT_TEXTURES:
  92         case PIPE_CAP_TWO_SIDED_STENCIL:
  93         case PIPE_CAP_GLSL:
  94             /* I'll be frank. This is a lie.
  95              *
  96              * We don't truly support GLSL on any of this driver's chipsets.
  97              * To be fair, no chipset supports the full GLSL specification
  98              * to the best of our knowledge, but some of the less esoteric
  99              * features are still missing here.
 100              *
 101              * Rather than cripple ourselves intentionally, I'm going to set
 102              * this flag, and as Gallium's interface continues to change, I
 103              * hope that this single monolithic GLSL enable can slowly get
 104              * split down into many different pieces and the state tracker
 105              * will handle fallbacks transparently, like it should.
 106              *
 107              * ~ C.
 108              */
 109         case PIPE_CAP_ANISOTROPIC_FILTER:
 110         case PIPE_CAP_POINT_SPRITE:
 111         case PIPE_CAP_OCCLUSION_QUERY:
 112         case PIPE_CAP_TEXTURE_SHADOW_MAP:
 113         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 114         case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
 115         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 116         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 117         case PIPE_CAP_FRAGMENT_COLOR_CLAMP_CONTROL:
 118             return 1;
 119         case PIPE_CAP_TEXTURE_SWIZZLE:
 120             return util_format_s3tc_enabled ? r300screen->caps.dxtc_swizzle : 1;
 121         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 122             return is_r500 ? 1 : 0;
 123
 124         /* Unsupported features (boolean caps). */
 125         case PIPE_CAP_TIMER_QUERY:
 126         case PIPE_CAP_DUAL_SOURCE_BLEND:
 127         case PIPE_CAP_INDEP_BLEND_ENABLE:
 128         case PIPE_CAP_INDEP_BLEND_FUNC:
 129         case PIPE_CAP_DEPTH_CLAMP:
 130         case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 131         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 132         case PIPE_CAP_ARRAY_TEXTURES:
 133             return 0;
 134
 135         /* SWTCL-only features. */
 136         case PIPE_CAP_STREAM_OUTPUT:
 137         case PIPE_CAP_PRIMITIVE_RESTART:
 138         case PIPE_CAP_TGSI_INSTANCEID:
 139             return !r300screen->caps.has_tcl;
 140
 141         /* Texturing. */
 142         case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 143         case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 144             return r300screen->caps.num_tex_units;
 145         case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
 146             return 0;
 147         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 148         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 149         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 150             /* 13 == 4096, 12 == 2048 */
 151             return is_r500 ? 13 : 12;
 152
 153         /* Render targets. */
 154         case PIPE_CAP_MAX_RENDER_TARGETS:
 155             return 4;
 156
 157         /* General shader limits and features. */
 158         case PIPE_CAP_SM3:
 159             return is_r500 ? 1 : 0;
 160         /* Fragment coordinate conventions. */
 161         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 162         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 163             return 1;
 164         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 165         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 166             return 0;
 167         default:
 168             debug_printf("r300: Warning: Unknown CAP %d in get_param.\n",
 169                          param);
 170             return 0;
 171     }
 172 }
 173
 174 static int r300_get_shader_param(struct pipe_screen *pscreen, unsigned shader, enum pipe_shader_cap param)
 175 {
 176    struct r300_screen* r300screen = r300_screen(pscreen);
 177    boolean is_r400 = r300screen->caps.is_r400;
 178    boolean is_r500 = r300screen->caps.is_r500;
 179
 180    switch (shader)
 181     {
 182     case PIPE_SHADER_FRAGMENT:
 183         switch (param)
 184         {
 185         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 186             return is_r500 || is_r400 ? 512 : 96;
 187         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 188             return is_r500 || is_r400 ? 512 : 64;
 189         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 190             return is_r500 || is_r400 ? 512 : 32;
 191         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 192             return is_r500 ? 511 : 4;
 193         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 194             return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
 195             /* Fragment shader limits. */
 196         case PIPE_SHADER_CAP_MAX_INPUTS:
 197             /* 2 colors + 8 texcoords are always supported
 198              * (minus fog and wpos).
 199              *
 200              * R500 has the ability to turn 3rd and 4th color into
 201              * additional texcoords but there is no two-sided color
 202              * selection then. However the facing bit can be used instead. */
 203             return 10;
 204         case PIPE_SHADER_CAP_MAX_CONSTS:
 205             return is_r500 ? 256 : 32;
 206         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 207             return 1;
 208         case PIPE_SHADER_CAP_MAX_TEMPS:
 209             return is_r500 ? 128 : is_r400 ? 64 : 32;
 210         case PIPE_SHADER_CAP_MAX_ADDRS:
 211             return 0;
 212         case PIPE_SHADER_CAP_MAX_PREDS:
 213             return is_r500 ? 1 : 0;
 214         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 215             return 0;
 216         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 217         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 218         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 219         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 220             return 0;
 221         case PIPE_SHADER_CAP_SUBROUTINES:
 222             return 0;
 223         }
 224         break;
 225     case PIPE_SHADER_VERTEX:
 226         if (!r300screen->caps.has_tcl) {
 227             return draw_get_shader_param(shader, param);
 228         }
 229
 230         switch (param)
 231         {
 232         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 233         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 234             return is_r500 ? 1024 : 256;
 235         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 236         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 237             return 0;
 238         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 239             return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
 240         case PIPE_SHADER_CAP_MAX_INPUTS:
 241             return 16;
 242         case PIPE_SHADER_CAP_MAX_CONSTS:
 243             return 256;
 244         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 245             return 1;
 246         case PIPE_SHADER_CAP_MAX_TEMPS:
 247             return 32;
 248         case PIPE_SHADER_CAP_MAX_ADDRS:
 249             return 1; /* XXX guessed */
 250         case PIPE_SHADER_CAP_MAX_PREDS:
 251             return is_r500 ? 4 : 0; /* XXX guessed. */
 252         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 253             return 0;
 254         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 255         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 256         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 257             return 0;
 258         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 259             return 1;
 260         case PIPE_SHADER_CAP_SUBROUTINES:
 261             return 0;
 262         default:
 263             break;
 264         }
 265         break;
 266     default:
 267         break;
 268     }
 269     return 0;
 270 }
 271
 272 static float r300_get_paramf(struct pipe_screen* pscreen, enum pipe_cap param)
 273 {
 274     struct r300_screen* r300screen = r300_screen(pscreen);
 275
 276     switch (param) {
 277         case PIPE_CAP_MAX_LINE_WIDTH:
 278         case PIPE_CAP_MAX_LINE_WIDTH_AA:
 279         case PIPE_CAP_MAX_POINT_WIDTH:
 280         case PIPE_CAP_MAX_POINT_WIDTH_AA:
 281             /* The maximum dimensions of the colorbuffer are our practical
 282              * rendering limits. 2048 pixels should be enough for anybody. */
 283             if (r300screen->caps.is_r500) {
 284                 return 4096.0f;
 285             } else if (r300screen->caps.is_r400) {
 286                 return 4021.0f;
 287             } else {
 288                 return 2560.0f;
 289             }
 290         case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 291             return 16.0f;
 292         case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 293             return 16.0f;
 294         case PIPE_CAP_GUARD_BAND_LEFT:
 295         case PIPE_CAP_GUARD_BAND_TOP:
 296         case PIPE_CAP_GUARD_BAND_RIGHT:
 297         case PIPE_CAP_GUARD_BAND_BOTTOM:
 298             /* XXX I don't know what these should be but the least we can do is
 299              * silence the potential error message */
 300             return 0.0f;
 301         default:
 302             debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n",
 303                          param);
 304             return 0.0f;
 305     }
 306 }
 307
 308 static boolean r300_is_format_supported(struct pipe_screen* screen,
 309                                         enum pipe_format format,
 310                                         enum pipe_texture_target target,
 311                                         unsigned sample_count,
 312                                         unsigned usage)
 313 {
 314     struct r300_winsys_screen *rws = r300_screen(screen)->rws;
 315     uint32_t retval = 0;
 316     boolean drm_2_8_0 = rws->get_value(rws, R300_VID_DRM_2_8_0);
 317     boolean is_r500 = r300_screen(screen)->caps.is_r500;
 318     boolean is_r400 = r300_screen(screen)->caps.is_r400;
 319     boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
 320                               format == PIPE_FORMAT_R10G10B10X2_SNORM ||
 321                               format == PIPE_FORMAT_B10G10R10A2_UNORM ||
 322                               format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
 323     boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
 324                        format == PIPE_FORMAT_RGTC1_SNORM ||
 325                        format == PIPE_FORMAT_LATC1_UNORM ||
 326                        format == PIPE_FORMAT_LATC1_SNORM;
 327     boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
 328                        format == PIPE_FORMAT_RGTC2_SNORM ||
 329                        format == PIPE_FORMAT_LATC2_UNORM ||
 330                        format == PIPE_FORMAT_LATC2_SNORM;
 331     boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
 332                             format == PIPE_FORMAT_R16G16_FLOAT ||
 333                             format == PIPE_FORMAT_R16G16B16_FLOAT ||
 334                             format == PIPE_FORMAT_R16G16B16A16_FLOAT;
 335
 336     /* Check multisampling support. */
 337     switch (sample_count) {
 338         case 0:
 339         case 1:
 340             break;
 341         case 2:
 342         case 3:
 343         case 4:
 344         case 6:
 345             return FALSE;
 346 #if 0
 347             if (usage != PIPE_BIND_RENDER_TARGET ||
 348                 !util_format_is_rgba8_variant(
 349                     util_format_description(format))) {
 350                 return FALSE;
 351             }
 352 #endif
 353             break;
 354         default:
 355             return FALSE;
 356     }
 357
 358     /* Check sampler format support. */
 359     if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 360         /* ATI1N is r5xx-only. */
 361         (is_r500 || !is_ati1n) &&
 362         /* ATI2N is supported on r4xx-r5xx. */
 363         (is_r400 || is_r500 || !is_ati2n) &&
 364         r300_is_sampler_format_supported(format)) {
 365         retval |= PIPE_BIND_SAMPLER_VIEW;
 366     }
 367
 368     /* Check colorbuffer format support. */
 369     if ((usage & (PIPE_BIND_RENDER_TARGET |
 370                   PIPE_BIND_DISPLAY_TARGET |
 371                   PIPE_BIND_SCANOUT |
 372                   PIPE_BIND_SHARED)) &&
 373         /* 2101010 cannot be rendered to on non-r5xx. */
 374         (!is_color2101010 || (is_r500 && drm_2_8_0)) &&
 375         r300_is_colorbuffer_format_supported(format)) {
 376         retval |= usage &
 377             (PIPE_BIND_RENDER_TARGET |
 378              PIPE_BIND_DISPLAY_TARGET |
 379              PIPE_BIND_SCANOUT |
 380              PIPE_BIND_SHARED);
 381     }
 382
 383     /* Check depth-stencil format support. */
 384     if (usage & PIPE_BIND_DEPTH_STENCIL &&
 385         r300_is_zs_format_supported(format)) {
 386         retval |= PIPE_BIND_DEPTH_STENCIL;
 387     }
 388
 389     /* Check vertex buffer format support. */
 390     if (usage & PIPE_BIND_VERTEX_BUFFER &&
 391         /* Half float is supported on >= RV350. */
 392         (is_r400 || is_r500 || !is_half_float) &&
 393         r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
 394         retval |= PIPE_BIND_VERTEX_BUFFER;
 395     }
 396
 397     /* Transfers are always supported. */
 398     if (usage & PIPE_BIND_TRANSFER_READ)
 399         retval |= PIPE_BIND_TRANSFER_READ;
 400     if (usage & PIPE_BIND_TRANSFER_WRITE)
 401         retval |= PIPE_BIND_TRANSFER_WRITE;
 402
 403     return retval == usage;
 404 }
 405
 406 static void r300_destroy_screen(struct pipe_screen* pscreen)
 407 {
 408     struct r300_screen* r300screen = r300_screen(pscreen);
 409     struct r300_winsys_screen *rws = r300_winsys_screen(pscreen);
 410
 411     util_slab_destroy(&r300screen->pool_buffers);
 412     pipe_mutex_destroy(r300screen->num_contexts_mutex);
 413
 414     if (rws)
 415       rws->destroy(rws);
 416
 417     FREE(r300screen);
 418 }
 419
 420 static void r300_fence_reference(struct pipe_screen *screen,
 421                                  struct pipe_fence_handle **ptr,
 422                                  struct pipe_fence_handle *fence)
 423 {
 424     r300_winsys_bo_reference((struct r300_winsys_bo**)ptr,
 425                              (struct r300_winsys_bo*)fence);
 426 }
 427
 428 static boolean r300_fence_signalled(struct pipe_screen *screen,
 429                                     struct pipe_fence_handle *fence)
 430 {
 431     struct r300_winsys_screen *rws = r300_screen(screen)->rws;
 432     struct r300_winsys_bo *rfence = (struct r300_winsys_bo*)fence;
 433
 434     return !rws->buffer_is_busy(rfence);
 435 }
 436
 437 static boolean r300_fence_finish(struct pipe_screen *screen,
 438                                  struct pipe_fence_handle *fence,
 439                                  uint64_t timeout)
 440 {
 441     struct r300_winsys_screen *rws = r300_screen(screen)->rws;
 442     struct r300_winsys_bo *rfence = (struct r300_winsys_bo*)fence;
 443
 444     if (timeout != PIPE_TIMEOUT_INFINITE) {
 445         int64_t start_time = os_time_get();
 446
 447         /* Convert to microseconds. */
 448         timeout /= 1000;
 449
 450         /* Wait in a loop. */
 451         while (rws->buffer_is_busy(rfence)) {
 452             if (os_time_get() - start_time >= timeout) {
 453                 return FALSE;
 454             }
 455             os_time_sleep(10);
 456         }
 457         return TRUE;
 458     }
 459
 460     rws->buffer_wait(rfence);
 461     return TRUE;
 462 }
 463
 464 struct pipe_screen* r300_screen_create(struct r300_winsys_screen *rws)
 465 {
 466     struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen);
 467
 468     if (!r300screen) {
 469         FREE(r300screen);
 470         return NULL;
 471     }
 472
 473     r300screen->caps.pci_id = rws->get_value(rws, R300_VID_PCI_ID);
 474     r300screen->caps.num_frag_pipes = rws->get_value(rws, R300_VID_GB_PIPES);
 475     r300screen->caps.num_z_pipes = rws->get_value(rws, R300_VID_Z_PIPES);
 476
 477     r300_init_debug(r300screen);
 478     r300_parse_chipset(&r300screen->caps);
 479
 480     if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK))
 481         r300screen->caps.zmask_ram = 0;
 482     if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ))
 483         r300screen->caps.hiz_ram = 0;
 484
 485     if (!rws->get_value(rws, R300_VID_DRM_2_8_0))
 486         r300screen->caps.has_us_format = FALSE;
 487
 488     pipe_mutex_init(r300screen->num_contexts_mutex);
 489
 490     util_slab_create(&r300screen->pool_buffers,
 491                      sizeof(struct r300_resource), 64,
 492                      UTIL_SLAB_SINGLETHREADED);
 493
 494     r300screen->rws = rws;
 495     r300screen->screen.winsys = (struct pipe_winsys*)rws;
 496     r300screen->screen.destroy = r300_destroy_screen;
 497     r300screen->screen.get_name = r300_get_name;
 498     r300screen->screen.get_vendor = r300_get_vendor;
 499     r300screen->screen.get_param = r300_get_param;
 500     r300screen->screen.get_shader_param = r300_get_shader_param;
 501     r300screen->screen.get_paramf = r300_get_paramf;
 502     r300screen->screen.is_format_supported = r300_is_format_supported;
 503     r300screen->screen.context_create = r300_create_context;
 504
 505     r300screen->screen.fence_reference = r300_fence_reference;
 506     r300screen->screen.fence_signalled = r300_fence_signalled;
 507     r300screen->screen.fence_finish = r300_fence_finish;
 508
 509     r300_init_screen_resource_functions(r300screen);
 510
 511     util_format_s3tc_init();
 512
 513     return &r300screen->screen;
 514 }