src/gallium/drivers/svga/svga_screen.c

   1 /**********************************************************
   2  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26 #include "util/u_memory.h"
  27 #include "util/u_inlines.h"
  28 #include "util/u_string.h"
  29 #include "util/u_math.h"
  30
  31 #include "svga_winsys.h"
  32 #include "svga_public.h"
  33 #include "svga_context.h"
  34 #include "svga_screen.h"
  35 #include "svga_resource_texture.h"
  36 #include "svga_resource.h"
  37 #include "svga_debug.h"
  38
  39 #include "svga3d_shaderdefs.h"
  40
  41
  42 #ifdef DEBUG
  43 int SVGA_DEBUG = 0;
  44
  45 static const struct debug_named_value svga_debug_flags[] = {
  46    { "dma",      DEBUG_DMA, NULL },
  47    { "tgsi",     DEBUG_TGSI, NULL },
  48    { "pipe",     DEBUG_PIPE, NULL },
  49    { "state",    DEBUG_STATE, NULL },
  50    { "screen",   DEBUG_SCREEN, NULL },
  51    { "tex",      DEBUG_TEX, NULL },
  52    { "swtnl",    DEBUG_SWTNL, NULL },
  53    { "const",    DEBUG_CONSTS, NULL },
  54    { "viewport", DEBUG_VIEWPORT, NULL },
  55    { "views",    DEBUG_VIEWS, NULL },
  56    { "perf",     DEBUG_PERF, NULL },
  57    { "flush",    DEBUG_FLUSH, NULL },
  58    { "sync",     DEBUG_SYNC, NULL },
  59    { "cache",    DEBUG_CACHE, NULL },
  60    DEBUG_NAMED_VALUE_END
  61 };
  62 #endif
  63
  64 static const char *
  65 svga_get_vendor( struct pipe_screen *pscreen )
  66 {
  67    return "VMware, Inc.";
  68 }
  69
  70
  71 static const char *
  72 svga_get_name( struct pipe_screen *pscreen )
  73 {
  74 #ifdef DEBUG
  75    /* Only return internal details in the DEBUG version:
  76     */
  77    return "SVGA3D; build: DEBUG; mutex: " PIPE_ATOMIC;
  78 #else
  79    return "SVGA3D; build: RELEASE; ";
  80 #endif
  81 }
  82
  83
  84
  85
  86 static float
  87 svga_get_paramf(struct pipe_screen *screen, enum pipe_cap param)
  88 {
  89    struct svga_screen *svgascreen = svga_screen(screen);
  90    struct svga_winsys_screen *sws = svgascreen->sws;
  91    SVGA3dDevCapResult result;
  92
  93    switch (param) {
  94    case PIPE_CAP_MAX_LINE_WIDTH:
  95       /* fall-through */
  96    case PIPE_CAP_MAX_LINE_WIDTH_AA:
  97       return 7.0;
  98
  99    case PIPE_CAP_MAX_POINT_WIDTH:
 100       /* fall-through */
 101    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 102       /* Keep this to a reasonable size to avoid failures in
 103        * conform/pntaa.c:
 104        */
 105       return SVGA_MAX_POINTSIZE;
 106
 107    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 108       if(!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY, &result))
 109          return 4.0;
 110       return result.u;
 111
 112    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 113       return 16.0;
 114
 115    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 116       return 16;
 117    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 118       return 16;
 119    case PIPE_CAP_NPOT_TEXTURES:
 120       return 1;
 121    case PIPE_CAP_TWO_SIDED_STENCIL:
 122       return 1;
 123    case PIPE_CAP_GLSL:
 124       return svgascreen->use_ps30 && svgascreen->use_vs30;
 125    case PIPE_CAP_ANISOTROPIC_FILTER:
 126       return 1;
 127    case PIPE_CAP_POINT_SPRITE:
 128       return 1;
 129    case PIPE_CAP_MAX_RENDER_TARGETS:
 130       if(!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_RENDER_TARGETS, &result))
 131          return 1;
 132       if(!result.u)
 133          return 1;
 134       return MIN2(result.u, PIPE_MAX_COLOR_BUFS);
 135    case PIPE_CAP_OCCLUSION_QUERY:
 136       return 1;
 137    case PIPE_CAP_TIMER_QUERY:
 138       return 0;
 139    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 140       return 1;
 141
 142    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 143       {
 144          unsigned levels = SVGA_MAX_TEXTURE_LEVELS;
 145          if (sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH, &result))
 146             levels = MIN2(util_logbase2(result.u) + 1, levels);
 147          else
 148             levels = 12 /* 2048x2048 */;
 149          if (sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT, &result))
 150             levels = MIN2(util_logbase2(result.u) + 1, levels);
 151          else
 152             levels = 12 /* 2048x2048 */;
 153          return levels;
 154       }
 155
 156    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 157       if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VOLUME_EXTENT, &result))
 158          return 8;  /* max 128x128x128 */
 159       return MIN2(util_logbase2(result.u) + 1, SVGA_MAX_TEXTURE_LEVELS);
 160
 161    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 162       /*
 163        * No mechanism to query the host, and at least limited to 2048x2048 on
 164        * certain hardware.
 165        */
 166       return MIN2(screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
 167                   12.0 /* 2048x2048 */);
 168
 169    case PIPE_CAP_TEXTURE_MIRROR_REPEAT: /* req. for GL 1.4 */
 170       return 1;
 171
 172    case PIPE_CAP_BLEND_EQUATION_SEPARATE: /* req. for GL 1.5 */
 173       return 1;
 174
 175    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 176    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 177       return 1;
 178    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 179    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 180       return 0;
 181
 182    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 183       return 1;
 184    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 185       return 0;
 186
 187    default:
 188       return 0;
 189    }
 190 }
 191
 192
 193 /* This is a fairly pointless interface
 194  */
 195 static int
 196 svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
 197 {
 198    return (int) svga_get_paramf( screen, param );
 199 }
 200
 201 static int svga_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
 202 {
 203    struct svga_screen *svgascreen = svga_screen(screen);
 204    struct svga_winsys_screen *sws = svgascreen->sws;
 205    SVGA3dDevCapResult result;
 206
 207    switch (shader)
 208    {
 209    case PIPE_SHADER_FRAGMENT:
 210       switch (param)
 211       {
 212       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 213       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 214       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 215       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 216          return svgascreen->use_ps30 ? 512 : 96;
 217       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 218          return SVGA3D_MAX_NESTING_LEVEL;
 219       case PIPE_SHADER_CAP_MAX_INPUTS:
 220          return 10;
 221       case PIPE_SHADER_CAP_MAX_CONSTS:
 222          return svgascreen->use_ps30 ? 224 : 16;
 223       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 224          return 1;
 225       case PIPE_SHADER_CAP_MAX_TEMPS:
 226          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS, &result))
 227             return svgascreen->use_ps30 ? 32 : 12;
 228          return result.u;
 229       case PIPE_SHADER_CAP_MAX_ADDRS:
 230       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 231          /*
 232           * Although PS 3.0 has some addressing abilities it can only represent
 233           * loops that can be statically determined and unrolled. Given we can
 234           * only handle a subset of the cases that the state tracker already
 235           * does it is better to defer loop unrolling to the state tracker.
 236           */
 237          return 0;
 238       case PIPE_SHADER_CAP_MAX_PREDS:
 239          return svgascreen->use_ps30 ? 1 : 0;
 240       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 241          return 1;
 242       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 243       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 244       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 245          return 0;
 246       case PIPE_SHADER_CAP_SUBROUTINES:
 247          return 0;
 248       case PIPE_SHADER_CAP_INTEGERS:
 249          return 0;
 250       }
 251       break;
 252    case PIPE_SHADER_VERTEX:
 253       switch (param)
 254       {
 255       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 256       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 257          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS, &result))
 258             return svgascreen->use_vs30 ? 512 : 256;
 259          return result.u;
 260       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 261       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 262          /* XXX: until we have vertex texture support */
 263          return 0;
 264       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 265          return SVGA3D_MAX_NESTING_LEVEL;
 266       case PIPE_SHADER_CAP_MAX_INPUTS:
 267          return 16;
 268       case PIPE_SHADER_CAP_MAX_CONSTS:
 269          return 256;
 270       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 271          return 1;
 272       case PIPE_SHADER_CAP_MAX_TEMPS:
 273          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS, &result))
 274             return svgascreen->use_vs30 ? 32 : 12;
 275          return result.u;
 276       case PIPE_SHADER_CAP_MAX_ADDRS:
 277          return svgascreen->use_vs30 ? 1 : 0;
 278       case PIPE_SHADER_CAP_MAX_PREDS:
 279          return svgascreen->use_vs30 ? 1 : 0;
 280       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 281          return 1;
 282       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 283       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 284          return svgascreen->use_vs30 ? 1 : 0;
 285       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 286          return 0;
 287       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 288          return 1;
 289       case PIPE_SHADER_CAP_SUBROUTINES:
 290          return 0;
 291       case PIPE_SHADER_CAP_INTEGERS:
 292          return 0;
 293       default:
 294          break;
 295       }
 296       break;
 297    default:
 298       break;
 299    }
 300    return 0;
 301 }
 302
 303 static INLINE SVGA3dDevCapIndex
 304 svga_translate_format_cap(enum pipe_format format)
 305 {
 306    switch(format) {
 307
 308    case PIPE_FORMAT_B8G8R8A8_UNORM:
 309       return SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8;
 310    case PIPE_FORMAT_B8G8R8X8_UNORM:
 311       return SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8;
 312
 313    case PIPE_FORMAT_B5G6R5_UNORM:
 314       return SVGA3D_DEVCAP_SURFACEFMT_R5G6B5;
 315    case PIPE_FORMAT_B5G5R5A1_UNORM:
 316       return SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5;
 317    case PIPE_FORMAT_B4G4R4A4_UNORM:
 318       return SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4;
 319
 320    case PIPE_FORMAT_Z16_UNORM:
 321       return SVGA3D_DEVCAP_SURFACEFMT_Z_D16;
 322    case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
 323       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8;
 324    case PIPE_FORMAT_X8Z24_UNORM:
 325       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8;
 326
 327    case PIPE_FORMAT_A8_UNORM:
 328       return SVGA3D_DEVCAP_SURFACEFMT_ALPHA8;
 329    case PIPE_FORMAT_L8_UNORM:
 330       return SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8;
 331
 332    case PIPE_FORMAT_DXT1_RGB:
 333    case PIPE_FORMAT_DXT1_RGBA:
 334       return SVGA3D_DEVCAP_SURFACEFMT_DXT1;
 335    case PIPE_FORMAT_DXT3_RGBA:
 336       return SVGA3D_DEVCAP_SURFACEFMT_DXT3;
 337    case PIPE_FORMAT_DXT5_RGBA:
 338       return SVGA3D_DEVCAP_SURFACEFMT_DXT5;
 339
 340    default:
 341       return SVGA3D_DEVCAP_MAX;
 342    }
 343 }
 344
 345
 346 static boolean
 347 svga_is_format_supported( struct pipe_screen *screen,
 348                           enum pipe_format format,
 349                           enum pipe_texture_target target,
 350                           unsigned sample_count,
 351                           unsigned tex_usage)
 352 {
 353    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 354    SVGA3dDevCapIndex index;
 355    SVGA3dDevCapResult result;
 356
 357    assert(tex_usage);
 358
 359    if (sample_count > 1)
 360       return FALSE;
 361
 362    /* Override host capabilities */
 363    if (tex_usage & PIPE_BIND_RENDER_TARGET) {
 364       switch(format) {
 365
 366       /* Often unsupported/problematic. This means we end up with the same
 367        * visuals for all virtual hardware implementations.
 368        */
 369       case PIPE_FORMAT_B4G4R4A4_UNORM:
 370       case PIPE_FORMAT_B5G5R5A1_UNORM:
 371          return FALSE;
 372
 373       default:
 374          break;
 375       }
 376    }
 377
 378    /* Try to query the host */
 379    index = svga_translate_format_cap(format);
 380    if( index < SVGA3D_DEVCAP_MAX &&
 381        sws->get_cap(sws, index, &result) )
 382    {
 383       SVGA3dSurfaceFormatCaps mask;
 384
 385       mask.value = 0;
 386       if (tex_usage & PIPE_BIND_RENDER_TARGET)
 387          mask.offscreenRenderTarget = 1;
 388       if (tex_usage & PIPE_BIND_DEPTH_STENCIL)
 389          mask.zStencil = 1;
 390       if (tex_usage & PIPE_BIND_SAMPLER_VIEW)
 391          mask.texture = 1;
 392
 393       if ((result.u & mask.value) == mask.value)
 394          return TRUE;
 395       else
 396          return FALSE;
 397    }
 398
 399    /* Use our translate functions directly rather than relying on a
 400     * duplicated list of supported formats which is prone to getting
 401     * out of sync:
 402     */
 403    if(tex_usage & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL))
 404       return svga_translate_format_render(format) != SVGA3D_FORMAT_INVALID;
 405    else
 406       return svga_translate_format(format) != SVGA3D_FORMAT_INVALID;
 407 }
 408
 409
 410 static void
 411 svga_fence_reference(struct pipe_screen *screen,
 412                      struct pipe_fence_handle **ptr,
 413                      struct pipe_fence_handle *fence)
 414 {
 415    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 416    sws->fence_reference(sws, ptr, fence);
 417 }
 418
 419
 420 static boolean
 421 svga_fence_signalled(struct pipe_screen *screen,
 422                      struct pipe_fence_handle *fence)
 423 {
 424    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 425    return sws->fence_signalled(sws, fence, 0) == 0;
 426 }
 427
 428
 429 static boolean
 430 svga_fence_finish(struct pipe_screen *screen,
 431                   struct pipe_fence_handle *fence,
 432                   uint64_t timeout)
 433 {
 434    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 435
 436    SVGA_DBG(DEBUG_DMA|DEBUG_PERF, "%s fence_ptr %p\n",
 437             __FUNCTION__, fence);
 438
 439    return sws->fence_finish(sws, fence, 0) == 0;
 440 }
 441
 442
 443 static void
 444 svga_destroy_screen( struct pipe_screen *screen )
 445 {
 446    struct svga_screen *svgascreen = svga_screen(screen);
 447
 448    svga_screen_cache_cleanup(svgascreen);
 449
 450    pipe_mutex_destroy(svgascreen->swc_mutex);
 451    pipe_mutex_destroy(svgascreen->tex_mutex);
 452
 453    svgascreen->sws->destroy(svgascreen->sws);
 454
 455    FREE(svgascreen);
 456 }
 457
 458
 459 /**
 460  * Create a new svga_screen object
 461  */
 462 struct pipe_screen *
 463 svga_screen_create(struct svga_winsys_screen *sws)
 464 {
 465    struct svga_screen *svgascreen;
 466    struct pipe_screen *screen;
 467    SVGA3dDevCapResult result;
 468
 469 #ifdef DEBUG
 470    SVGA_DEBUG = debug_get_flags_option("SVGA_DEBUG", svga_debug_flags, 0 );
 471 #endif
 472
 473    svgascreen = CALLOC_STRUCT(svga_screen);
 474    if (!svgascreen)
 475       goto error1;
 476
 477    svgascreen->debug.force_level_surface_view =
 478       debug_get_bool_option("SVGA_FORCE_LEVEL_SURFACE_VIEW", FALSE);
 479    svgascreen->debug.force_surface_view =
 480       debug_get_bool_option("SVGA_FORCE_SURFACE_VIEW", FALSE);
 481    svgascreen->debug.force_sampler_view =
 482       debug_get_bool_option("SVGA_FORCE_SAMPLER_VIEW", FALSE);
 483    svgascreen->debug.no_surface_view =
 484       debug_get_bool_option("SVGA_NO_SURFACE_VIEW", FALSE);
 485    svgascreen->debug.no_sampler_view =
 486       debug_get_bool_option("SVGA_NO_SAMPLER_VIEW", FALSE);
 487
 488    screen = &svgascreen->screen;
 489
 490    screen->destroy = svga_destroy_screen;
 491    screen->get_name = svga_get_name;
 492    screen->get_vendor = svga_get_vendor;
 493    screen->get_param = svga_get_param;
 494    screen->get_shader_param = svga_get_shader_param;
 495    screen->get_paramf = svga_get_paramf;
 496    screen->is_format_supported = svga_is_format_supported;
 497    screen->context_create = svga_context_create;
 498    screen->fence_reference = svga_fence_reference;
 499    screen->fence_signalled = svga_fence_signalled;
 500    screen->fence_finish = svga_fence_finish;
 501    svgascreen->sws = sws;
 502
 503    svga_init_screen_resource_functions(svgascreen);
 504
 505    if (sws->get_hw_version) {
 506       svgascreen->hw_version = sws->get_hw_version(sws);
 507    } else {
 508       svgascreen->hw_version = SVGA3D_HWVERSION_WS65_B1;
 509    }
 510
 511    svgascreen->use_ps30 =
 512       sws->get_cap(sws, SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION, &result) &&
 513       result.u >= SVGA3DPSVERSION_30 ? TRUE : FALSE;
 514
 515    svgascreen->use_vs30 =
 516       sws->get_cap(sws, SVGA3D_DEVCAP_VERTEX_SHADER_VERSION, &result) &&
 517       result.u >= SVGA3DVSVERSION_30 ? TRUE : FALSE;
 518
 519 #if 1
 520    /* Shader model 2.0 is unsupported at the moment. */
 521    if(!svgascreen->use_ps30 || !svgascreen->use_vs30)
 522       goto error2;
 523 #else
 524    if(debug_get_bool_option("SVGA_NO_SM30", FALSE))
 525       svgascreen->use_vs30 = svgascreen->use_ps30 = FALSE;
 526 #endif
 527
 528    pipe_mutex_init(svgascreen->tex_mutex);
 529    pipe_mutex_init(svgascreen->swc_mutex);
 530
 531    svga_screen_cache_init(svgascreen);
 532
 533    return screen;
 534 error2:
 535    FREE(svgascreen);
 536 error1:
 537    return NULL;
 538 }
 539
 540 struct svga_winsys_screen *
 541 svga_winsys_screen(struct pipe_screen *screen)
 542 {
 543    return svga_screen(screen)->sws;
 544 }
 545
 546 #ifdef DEBUG
 547 struct svga_screen *
 548 svga_screen(struct pipe_screen *screen)
 549 {
 550    assert(screen);
 551    assert(screen->destroy == svga_destroy_screen);
 552    return (struct svga_screen *)screen;
 553 }
 554 #endif