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_format.h"
  35 #include "svga_screen.h"
  36 #include "svga_resource_texture.h"
  37 #include "svga_resource.h"
  38 #include "svga_debug.h"
  39
  40 #include "svga3d_shaderdefs.h"
  41
  42
  43 #ifdef DEBUG
  44 int SVGA_DEBUG = 0;
  45
  46 static const struct debug_named_value svga_debug_flags[] = {
  47    { "dma",      DEBUG_DMA, NULL },
  48    { "tgsi",     DEBUG_TGSI, NULL },
  49    { "pipe",     DEBUG_PIPE, NULL },
  50    { "state",    DEBUG_STATE, NULL },
  51    { "screen",   DEBUG_SCREEN, NULL },
  52    { "tex",      DEBUG_TEX, NULL },
  53    { "swtnl",    DEBUG_SWTNL, NULL },
  54    { "const",    DEBUG_CONSTS, NULL },
  55    { "viewport", DEBUG_VIEWPORT, NULL },
  56    { "views",    DEBUG_VIEWS, NULL },
  57    { "perf",     DEBUG_PERF, NULL },
  58    { "flush",    DEBUG_FLUSH, NULL },
  59    { "sync",     DEBUG_SYNC, NULL },
  60    { "cache",    DEBUG_CACHE, NULL },
  61    DEBUG_NAMED_VALUE_END
  62 };
  63 #endif
  64
  65 static const char *
  66 svga_get_vendor( struct pipe_screen *pscreen )
  67 {
  68    return "VMware, Inc.";
  69 }
  70
  71
  72 static const char *
  73 svga_get_name( struct pipe_screen *pscreen )
  74 {
  75    const char *build = "", *llvm = "", *mutex = "";
  76    static char name[100];
  77 #ifdef DEBUG
  78    /* Only return internal details in the DEBUG version:
  79     */
  80    build = "build: DEBUG;";
  81    mutex = "mutex: " PIPE_ATOMIC ";";
  82 #ifdef HAVE_LLVM
  83    llvm = "LLVM;";
  84 #endif
  85 #else
  86    build = "build: RELEASE;";
  87 #endif
  88
  89    util_snprintf(name, sizeof(name), "SVGA3D; %s %s %s", build, mutex, llvm);
  90    return name;
  91 }
  92
  93
  94
  95
  96 static float
  97 svga_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
  98 {
  99    struct svga_screen *svgascreen = svga_screen(screen);
 100    struct svga_winsys_screen *sws = svgascreen->sws;
 101    SVGA3dDevCapResult result;
 102
 103    switch (param) {
 104    case PIPE_CAPF_MAX_LINE_WIDTH:
 105       /* fall-through */
 106    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 107       return 7.0;
 108
 109    case PIPE_CAPF_MAX_POINT_WIDTH:
 110       /* fall-through */
 111    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 112       /* Keep this to a reasonable size to avoid failures in
 113        * conform/pntaa.c:
 114        */
 115       return SVGA_MAX_POINTSIZE;
 116
 117    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 118       if(!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY, &result))
 119          return 4.0;
 120       return result.u;
 121
 122    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 123       return 16.0;
 124
 125    default:
 126       return 0;
 127    }
 128 }
 129
 130
 131 static int
 132 svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
 133 {
 134    struct svga_screen *svgascreen = svga_screen(screen);
 135    struct svga_winsys_screen *sws = svgascreen->sws;
 136    SVGA3dDevCapResult result;
 137
 138    switch (param) {
 139    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 140       return 16;
 141    case PIPE_CAP_NPOT_TEXTURES:
 142       return 1;
 143    case PIPE_CAP_TWO_SIDED_STENCIL:
 144       return 1;
 145    case PIPE_CAP_ANISOTROPIC_FILTER:
 146       return 1;
 147    case PIPE_CAP_POINT_SPRITE:
 148       return 1;
 149    case PIPE_CAP_MAX_RENDER_TARGETS:
 150       if(!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_RENDER_TARGETS, &result))
 151          return 1;
 152       if(!result.u)
 153          return 1;
 154       return MIN2(result.u, PIPE_MAX_COLOR_BUFS);
 155    case PIPE_CAP_OCCLUSION_QUERY:
 156       return 1;
 157    case PIPE_CAP_TIMER_QUERY:
 158       return 0;
 159    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 160       return 1;
 161    case PIPE_CAP_TEXTURE_SWIZZLE:
 162       return 1;
 163
 164    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 165       {
 166          unsigned levels = SVGA_MAX_TEXTURE_LEVELS;
 167          if (sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH, &result))
 168             levels = MIN2(util_logbase2(result.u) + 1, levels);
 169          else
 170             levels = 12 /* 2048x2048 */;
 171          if (sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT, &result))
 172             levels = MIN2(util_logbase2(result.u) + 1, levels);
 173          else
 174             levels = 12 /* 2048x2048 */;
 175          return levels;
 176       }
 177
 178    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 179       if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VOLUME_EXTENT, &result))
 180          return 8;  /* max 128x128x128 */
 181       return MIN2(util_logbase2(result.u) + 1, SVGA_MAX_TEXTURE_LEVELS);
 182
 183    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 184       /*
 185        * No mechanism to query the host, and at least limited to 2048x2048 on
 186        * certain hardware.
 187        */
 188       return MIN2(screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
 189                   12.0 /* 2048x2048 */);
 190
 191    case PIPE_CAP_BLEND_EQUATION_SEPARATE: /* req. for GL 1.5 */
 192       return 1;
 193
 194    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 195    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 196       return 1;
 197    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 198    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 199       return 0;
 200
 201    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 202       return 1;
 203    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 204       return 0;
 205
 206    default:
 207       return 0;
 208    }
 209 }
 210
 211 static int svga_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
 212 {
 213    struct svga_screen *svgascreen = svga_screen(screen);
 214    struct svga_winsys_screen *sws = svgascreen->sws;
 215    SVGA3dDevCapResult result;
 216
 217    switch (shader)
 218    {
 219    case PIPE_SHADER_FRAGMENT:
 220       switch (param)
 221       {
 222       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 223       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 224       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 225       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 226          return 512;
 227       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 228          return SVGA3D_MAX_NESTING_LEVEL;
 229       case PIPE_SHADER_CAP_MAX_INPUTS:
 230          return 10;
 231       case PIPE_SHADER_CAP_MAX_CONSTS:
 232          return 224;
 233       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 234          return 1;
 235       case PIPE_SHADER_CAP_MAX_TEMPS:
 236          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS, &result))
 237             return 32;
 238          return result.u;
 239       case PIPE_SHADER_CAP_MAX_ADDRS:
 240       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 241          /*
 242           * Although PS 3.0 has some addressing abilities it can only represent
 243           * loops that can be statically determined and unrolled. Given we can
 244           * only handle a subset of the cases that the state tracker already
 245           * does it is better to defer loop unrolling to the state tracker.
 246           */
 247          return 0;
 248       case PIPE_SHADER_CAP_MAX_PREDS:
 249          return 1;
 250       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 251          return 1;
 252       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 253       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 254       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 255          return 0;
 256       case PIPE_SHADER_CAP_SUBROUTINES:
 257          return 0;
 258       case PIPE_SHADER_CAP_INTEGERS:
 259          return 0;
 260       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 261          return 16;
 262       }
 263       break;
 264    case PIPE_SHADER_VERTEX:
 265       switch (param)
 266       {
 267       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 268       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 269          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS, &result))
 270             return 512;
 271          return result.u;
 272       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 273       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 274          /* XXX: until we have vertex texture support */
 275          return 0;
 276       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 277          return SVGA3D_MAX_NESTING_LEVEL;
 278       case PIPE_SHADER_CAP_MAX_INPUTS:
 279          return 16;
 280       case PIPE_SHADER_CAP_MAX_CONSTS:
 281          return 256;
 282       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 283          return 1;
 284       case PIPE_SHADER_CAP_MAX_TEMPS:
 285          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS, &result))
 286             return 32;
 287          return result.u;
 288       case PIPE_SHADER_CAP_MAX_ADDRS:
 289          return 1;
 290       case PIPE_SHADER_CAP_MAX_PREDS:
 291          return 1;
 292       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 293          return 1;
 294       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 295       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 296          return 1;
 297       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 298          return 0;
 299       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 300          return 1;
 301       case PIPE_SHADER_CAP_SUBROUTINES:
 302          return 0;
 303       case PIPE_SHADER_CAP_INTEGERS:
 304          return 0;
 305       default:
 306          break;
 307       }
 308       break;
 309    default:
 310       break;
 311    }
 312    return 0;
 313 }
 314
 315
 316 static boolean
 317 svga_is_format_supported( struct pipe_screen *screen,
 318                           enum pipe_format format,
 319                           enum pipe_texture_target target,
 320                           unsigned sample_count,
 321                           unsigned tex_usage)
 322 {
 323    struct svga_screen *ss = svga_screen(screen);
 324    SVGA3dSurfaceFormat svga_format;
 325    SVGA3dSurfaceFormatCaps caps;
 326    SVGA3dSurfaceFormatCaps mask;
 327
 328    assert(tex_usage);
 329
 330    if (sample_count > 1) {
 331       return FALSE;
 332    }
 333
 334    svga_format = svga_translate_format(ss, format, tex_usage);
 335    if (svga_format == SVGA3D_FORMAT_INVALID) {
 336       return FALSE;
 337    }
 338
 339    /*
 340     * Override host capabilities, so that we end up with the same
 341     * visuals for all virtual hardware implementations.
 342     */
 343
 344    if (tex_usage & PIPE_BIND_DISPLAY_TARGET) {
 345       switch (svga_format) {
 346       case SVGA3D_A8R8G8B8:
 347       case SVGA3D_X8R8G8B8:
 348       case SVGA3D_R5G6B5:
 349          break;
 350
 351       /* Often unsupported/problematic. This means we end up with the same
 352        * visuals for all virtual hardware implementations.
 353        */
 354       case PIPE_FORMAT_B4G4R4A4_UNORM:
 355       case PIPE_FORMAT_B5G5R5A1_UNORM:
 356          return FALSE;
 357
 358       default:
 359          return FALSE;
 360       }
 361    }
 362
 363    /*
 364     * Query the host capabilities.
 365     */
 366
 367    svga_get_format_cap(ss, svga_format, &caps);
 368
 369    mask.value = 0;
 370    if (tex_usage & PIPE_BIND_RENDER_TARGET) {
 371       mask.offscreenRenderTarget = 1;
 372    }
 373    if (tex_usage & PIPE_BIND_DEPTH_STENCIL) {
 374       mask.zStencil = 1;
 375    }
 376    if (tex_usage & PIPE_BIND_SAMPLER_VIEW) {
 377       mask.texture = 1;
 378    }
 379
 380    return (caps.value & mask.value) == mask.value;
 381 }
 382
 383
 384 static void
 385 svga_fence_reference(struct pipe_screen *screen,
 386                      struct pipe_fence_handle **ptr,
 387                      struct pipe_fence_handle *fence)
 388 {
 389    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 390    sws->fence_reference(sws, ptr, fence);
 391 }
 392
 393
 394 static boolean
 395 svga_fence_signalled(struct pipe_screen *screen,
 396                      struct pipe_fence_handle *fence)
 397 {
 398    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 399    return sws->fence_signalled(sws, fence, 0) == 0;
 400 }
 401
 402
 403 static boolean
 404 svga_fence_finish(struct pipe_screen *screen,
 405                   struct pipe_fence_handle *fence,
 406                   uint64_t timeout)
 407 {
 408    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 409
 410    SVGA_DBG(DEBUG_DMA|DEBUG_PERF, "%s fence_ptr %p\n",
 411             __FUNCTION__, fence);
 412
 413    return sws->fence_finish(sws, fence, 0) == 0;
 414 }
 415
 416
 417 static void
 418 svga_destroy_screen( struct pipe_screen *screen )
 419 {
 420    struct svga_screen *svgascreen = svga_screen(screen);
 421
 422    svga_screen_cache_cleanup(svgascreen);
 423
 424    pipe_mutex_destroy(svgascreen->swc_mutex);
 425    pipe_mutex_destroy(svgascreen->tex_mutex);
 426
 427    svgascreen->sws->destroy(svgascreen->sws);
 428
 429    FREE(svgascreen);
 430 }
 431
 432
 433 /**
 434  * Create a new svga_screen object
 435  */
 436 struct pipe_screen *
 437 svga_screen_create(struct svga_winsys_screen *sws)
 438 {
 439    struct svga_screen *svgascreen;
 440    struct pipe_screen *screen;
 441    SVGA3dDevCapResult result;
 442    boolean use_vs30, use_ps30;
 443
 444 #ifdef DEBUG
 445    SVGA_DEBUG = debug_get_flags_option("SVGA_DEBUG", svga_debug_flags, 0 );
 446 #endif
 447
 448    svgascreen = CALLOC_STRUCT(svga_screen);
 449    if (!svgascreen)
 450       goto error1;
 451
 452    svgascreen->debug.force_level_surface_view =
 453       debug_get_bool_option("SVGA_FORCE_LEVEL_SURFACE_VIEW", FALSE);
 454    svgascreen->debug.force_surface_view =
 455       debug_get_bool_option("SVGA_FORCE_SURFACE_VIEW", FALSE);
 456    svgascreen->debug.force_sampler_view =
 457       debug_get_bool_option("SVGA_FORCE_SAMPLER_VIEW", FALSE);
 458    svgascreen->debug.no_surface_view =
 459       debug_get_bool_option("SVGA_NO_SURFACE_VIEW", FALSE);
 460    svgascreen->debug.no_sampler_view =
 461       debug_get_bool_option("SVGA_NO_SAMPLER_VIEW", FALSE);
 462
 463    screen = &svgascreen->screen;
 464
 465    screen->destroy = svga_destroy_screen;
 466    screen->get_name = svga_get_name;
 467    screen->get_vendor = svga_get_vendor;
 468    screen->get_param = svga_get_param;
 469    screen->get_shader_param = svga_get_shader_param;
 470    screen->get_paramf = svga_get_paramf;
 471    screen->is_format_supported = svga_is_format_supported;
 472    screen->context_create = svga_context_create;
 473    screen->fence_reference = svga_fence_reference;
 474    screen->fence_signalled = svga_fence_signalled;
 475    screen->fence_finish = svga_fence_finish;
 476    svgascreen->sws = sws;
 477
 478    svga_init_screen_resource_functions(svgascreen);
 479
 480    if (sws->get_hw_version) {
 481       svgascreen->hw_version = sws->get_hw_version(sws);
 482    } else {
 483       svgascreen->hw_version = SVGA3D_HWVERSION_WS65_B1;
 484    }
 485
 486    use_ps30 =
 487       sws->get_cap(sws, SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION, &result) &&
 488       result.u >= SVGA3DPSVERSION_30 ? TRUE : FALSE;
 489
 490    use_vs30 =
 491       sws->get_cap(sws, SVGA3D_DEVCAP_VERTEX_SHADER_VERSION, &result) &&
 492       result.u >= SVGA3DVSVERSION_30 ? TRUE : FALSE;
 493
 494    /* we require Shader model 3.0 or later */
 495    if (!use_ps30 || !use_vs30)
 496       goto error2;
 497
 498    /*
 499     * The D16, D24X8, and D24S8 formats always do an implicit shadow compare
 500     * when sampled from, where as the DF16, DF24, and D24S8_INT do not.  So
 501     * we prefer the later when available.
 502     *
 503     * This mimics hardware vendors extensions for D3D depth sampling. See also
 504     * http://aras-p.info/texts/D3D9GPUHacks.html
 505     */
 506
 507    {
 508       boolean has_df16, has_df24, has_d24s8_int;
 509       SVGA3dSurfaceFormatCaps caps;
 510       SVGA3dSurfaceFormatCaps mask;
 511       mask.value = 0;
 512       mask.zStencil = 1;
 513       mask.texture = 1;
 514
 515       svgascreen->depth.z16 = SVGA3D_Z_D16;
 516       svgascreen->depth.x8z24 = SVGA3D_Z_D24X8;
 517       svgascreen->depth.s8z24 = SVGA3D_Z_D24S8;
 518
 519       svga_get_format_cap(svgascreen, SVGA3D_Z_DF16, &caps);
 520       has_df16 = (caps.value & mask.value) == mask.value;
 521
 522       svga_get_format_cap(svgascreen, SVGA3D_Z_DF24, &caps);
 523       has_df24 = (caps.value & mask.value) == mask.value;
 524
 525       svga_get_format_cap(svgascreen, SVGA3D_Z_D24S8_INT, &caps);
 526       has_d24s8_int = (caps.value & mask.value) == mask.value;
 527
 528       /* XXX: We might want some other logic here.
 529        * Like if we only have d24s8_int we should
 530        * emulate the other formats with that.
 531        */
 532       if (has_df16) {
 533          svgascreen->depth.z16 = SVGA3D_Z_DF16;
 534       }
 535       if (has_df24) {
 536          svgascreen->depth.x8z24 = SVGA3D_Z_DF24;
 537       }
 538       if (has_d24s8_int) {
 539          svgascreen->depth.s8z24 = SVGA3D_Z_D24S8_INT;
 540       }
 541    }
 542
 543    pipe_mutex_init(svgascreen->tex_mutex);
 544    pipe_mutex_init(svgascreen->swc_mutex);
 545
 546    svga_screen_cache_init(svgascreen);
 547
 548    return screen;
 549 error2:
 550    FREE(svgascreen);
 551 error1:
 552    return NULL;
 553 }
 554
 555 struct svga_winsys_screen *
 556 svga_winsys_screen(struct pipe_screen *screen)
 557 {
 558    return svga_screen(screen)->sws;
 559 }
 560
 561 #ifdef DEBUG
 562 struct svga_screen *
 563 svga_screen(struct pipe_screen *screen)
 564 {
 565    assert(screen);
 566    assert(screen->destroy == svga_destroy_screen);
 567    return (struct svga_screen *)screen;
 568 }
 569 #endif