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_format.h"
  27 #include "util/u_memory.h"
  28 #include "util/u_inlines.h"
  29 #include "util/u_string.h"
  30 #include "util/u_math.h"
  31
  32 #include "svga_winsys.h"
  33 #include "svga_public.h"
  34 #include "svga_context.h"
  35 #include "svga_format.h"
  36 #include "svga_screen.h"
  37 #include "svga_resource_texture.h"
  38 #include "svga_resource.h"
  39 #include "svga_debug.h"
  40
  41 #include "svga3d_shaderdefs.h"
  42
  43
  44 #ifdef DEBUG
  45 int SVGA_DEBUG = 0;
  46
  47 static const struct debug_named_value svga_debug_flags[] = {
  48    { "dma",      DEBUG_DMA, NULL },
  49    { "tgsi",     DEBUG_TGSI, NULL },
  50    { "pipe",     DEBUG_PIPE, NULL },
  51    { "state",    DEBUG_STATE, NULL },
  52    { "screen",   DEBUG_SCREEN, NULL },
  53    { "tex",      DEBUG_TEX, NULL },
  54    { "swtnl",    DEBUG_SWTNL, NULL },
  55    { "const",    DEBUG_CONSTS, NULL },
  56    { "viewport", DEBUG_VIEWPORT, NULL },
  57    { "views",    DEBUG_VIEWS, NULL },
  58    { "perf",     DEBUG_PERF, NULL },
  59    { "flush",    DEBUG_FLUSH, NULL },
  60    { "sync",     DEBUG_SYNC, NULL },
  61    { "cache",    DEBUG_CACHE, NULL },
  62    DEBUG_NAMED_VALUE_END
  63 };
  64 #endif
  65
  66 static const char *
  67 svga_get_vendor( struct pipe_screen *pscreen )
  68 {
  69    return "VMware, Inc.";
  70 }
  71
  72
  73 static const char *
  74 svga_get_name( struct pipe_screen *pscreen )
  75 {
  76    const char *build = "", *llvm = "", *mutex = "";
  77    static char name[100];
  78 #ifdef DEBUG
  79    /* Only return internal details in the DEBUG version:
  80     */
  81    build = "build: DEBUG;";
  82    mutex = "mutex: " PIPE_ATOMIC ";";
  83 #ifdef HAVE_LLVM
  84    llvm = "LLVM;";
  85 #endif
  86 #else
  87    build = "build: RELEASE;";
  88 #endif
  89
  90    util_snprintf(name, sizeof(name), "SVGA3D; %s %s %s", build, mutex, llvm);
  91    return name;
  92 }
  93
  94
  95
  96
  97 static float
  98 svga_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
  99 {
 100    struct svga_screen *svgascreen = svga_screen(screen);
 101    struct svga_winsys_screen *sws = svgascreen->sws;
 102    SVGA3dDevCapResult result;
 103
 104    switch (param) {
 105    case PIPE_CAPF_MAX_LINE_WIDTH:
 106       return svgascreen->maxLineWidth;
 107    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 108       return svgascreen->maxLineWidthAA;
 109
 110    case PIPE_CAPF_MAX_POINT_WIDTH:
 111       /* fall-through */
 112    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 113       return svgascreen->maxPointSize;
 114
 115    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 116       if(!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY, &result))
 117          return 4.0f;
 118       return (float) result.u;
 119
 120    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 121       return 15.0;
 122    case PIPE_CAPF_GUARD_BAND_LEFT:
 123    case PIPE_CAPF_GUARD_BAND_TOP:
 124    case PIPE_CAPF_GUARD_BAND_RIGHT:
 125    case PIPE_CAPF_GUARD_BAND_BOTTOM:
 126       return 0.0;
 127    }
 128
 129    debug_printf("Unexpected PIPE_CAPF_ query %u\n", param);
 130    return 0;
 131 }
 132
 133
 134 static int
 135 svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
 136 {
 137    struct svga_screen *svgascreen = svga_screen(screen);
 138    struct svga_winsys_screen *sws = svgascreen->sws;
 139    SVGA3dDevCapResult result;
 140
 141    switch (param) {
 142    case PIPE_CAP_NPOT_TEXTURES:
 143    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 144       return 1;
 145    case PIPE_CAP_TWO_SIDED_STENCIL:
 146       return 1;
 147    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 148       return 0;
 149    case PIPE_CAP_ANISOTROPIC_FILTER:
 150       return 1;
 151    case PIPE_CAP_POINT_SPRITE:
 152       return 1;
 153    case PIPE_CAP_TGSI_TEXCOORD:
 154       return 0;
 155    case PIPE_CAP_MAX_RENDER_TARGETS:
 156       return svgascreen->max_color_buffers;
 157    case PIPE_CAP_OCCLUSION_QUERY:
 158       return 1;
 159    case PIPE_CAP_QUERY_TIME_ELAPSED:
 160       return 0;
 161    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 162       return 1;
 163    case PIPE_CAP_TEXTURE_SWIZZLE:
 164       return 1;
 165    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 166       return 0;
 167    case PIPE_CAP_USER_VERTEX_BUFFERS:
 168    case PIPE_CAP_USER_INDEX_BUFFERS:
 169       return 0;
 170    case PIPE_CAP_USER_CONSTANT_BUFFERS:
 171       return 1;
 172    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 173       return 16;
 174
 175    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 176       {
 177          unsigned levels = SVGA_MAX_TEXTURE_LEVELS;
 178          if (sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH, &result))
 179             levels = MIN2(util_logbase2(result.u) + 1, levels);
 180          else
 181             levels = 12 /* 2048x2048 */;
 182          if (sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT, &result))
 183             levels = MIN2(util_logbase2(result.u) + 1, levels);
 184          else
 185             levels = 12 /* 2048x2048 */;
 186          return levels;
 187       }
 188
 189    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 190       if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VOLUME_EXTENT, &result))
 191          return 8;  /* max 128x128x128 */
 192       return MIN2(util_logbase2(result.u) + 1, SVGA_MAX_TEXTURE_LEVELS);
 193
 194    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 195       /*
 196        * No mechanism to query the host, and at least limited to 2048x2048 on
 197        * certain hardware.
 198        */
 199       return MIN2(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
 200                   12 /* 2048x2048 */);
 201
 202    case PIPE_CAP_BLEND_EQUATION_SEPARATE: /* req. for GL 1.5 */
 203       return 1;
 204
 205    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 206       return 1;
 207    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 208       return 0;
 209    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 210       return 0;
 211    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 212       return 1;
 213
 214    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 215       return 1; /* The color outputs of vertex shaders are not clamped */
 216    case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 217       return 0; /* The driver can't clamp vertex colors */
 218    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 219       return 0; /* The driver can't clamp fragment colors */
 220
 221    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 222       return 1; /* expected for GL_ARB_framebuffer_object */
 223
 224    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 225       return 120;
 226
 227    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 228       return 0;
 229
 230    case PIPE_CAP_SM3:
 231       return 1;
 232
 233    /* Unsupported features */
 234    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 235    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 236    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 237    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 238    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 239    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 240    case PIPE_CAP_INDEP_BLEND_ENABLE:
 241    case PIPE_CAP_INDEP_BLEND_FUNC:
 242    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 243    case PIPE_CAP_PRIMITIVE_RESTART:
 244    case PIPE_CAP_TGSI_INSTANCEID:
 245    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 246    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 247    case PIPE_CAP_MIN_TEXEL_OFFSET:
 248    case PIPE_CAP_MAX_TEXEL_OFFSET:
 249    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 250    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 251    case PIPE_CAP_CONDITIONAL_RENDER:
 252    case PIPE_CAP_TEXTURE_BARRIER:
 253    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 254    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 255    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 256    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 257    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 258    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 259    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 260    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 261    case PIPE_CAP_COMPUTE:
 262    case PIPE_CAP_START_INSTANCE:
 263    case PIPE_CAP_QUERY_TIMESTAMP:
 264    case PIPE_CAP_TEXTURE_MULTISAMPLE:
 265    case PIPE_CAP_CUBE_MAP_ARRAY:
 266    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 267    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 268    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 269    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 270    case PIPE_CAP_TGSI_VS_LAYER:
 271    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 272    case PIPE_CAP_TEXTURE_GATHER_SM5:
 273    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 274    case PIPE_CAP_FAKE_SW_MSAA:
 275    case PIPE_CAP_TEXTURE_QUERY_LOD:
 276    case PIPE_CAP_SAMPLE_SHADING:
 277    case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 278    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 279       return 0;
 280    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 281       return 64;
 282    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 283       return 1;
 284    case PIPE_CAP_MAX_VIEWPORTS:
 285       return 1;
 286    case PIPE_CAP_ENDIANNESS:
 287       return PIPE_ENDIAN_LITTLE;
 288    }
 289
 290    debug_printf("Unexpected PIPE_CAP_ query %u\n", param);
 291    return 0;
 292 }
 293
 294 static int svga_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
 295 {
 296    struct svga_screen *svgascreen = svga_screen(screen);
 297    struct svga_winsys_screen *sws = svgascreen->sws;
 298    SVGA3dDevCapResult result;
 299
 300    switch (shader)
 301    {
 302    case PIPE_SHADER_FRAGMENT:
 303       switch (param)
 304       {
 305       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 306       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 307       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 308       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 309          return 512;
 310       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 311          return SVGA3D_MAX_NESTING_LEVEL;
 312       case PIPE_SHADER_CAP_MAX_INPUTS:
 313          return 10;
 314       case PIPE_SHADER_CAP_MAX_CONSTS:
 315          return 224;
 316       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 317          return 1;
 318       case PIPE_SHADER_CAP_MAX_TEMPS:
 319          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS, &result))
 320             return 32;
 321          return MIN2(result.u, SVGA3D_TEMPREG_MAX);
 322       case PIPE_SHADER_CAP_MAX_ADDRS:
 323       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 324          /*
 325           * Although PS 3.0 has some addressing abilities it can only represent
 326           * loops that can be statically determined and unrolled. Given we can
 327           * only handle a subset of the cases that the state tracker already
 328           * does it is better to defer loop unrolling to the state tracker.
 329           */
 330          return 0;
 331       case PIPE_SHADER_CAP_MAX_PREDS:
 332          return 1;
 333       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 334          return 0;
 335       case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 336          return 0;
 337       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 338       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 339       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 340          return 0;
 341       case PIPE_SHADER_CAP_SUBROUTINES:
 342          return 0;
 343       case PIPE_SHADER_CAP_INTEGERS:
 344          return 0;
 345       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 346       case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 347          return 16;
 348       case PIPE_SHADER_CAP_PREFERRED_IR:
 349          return PIPE_SHADER_IR_TGSI;
 350       }
 351       /* If we get here, we failed to handle a cap above */
 352       debug_printf("Unexpected fragment shader query %u\n", param);
 353       return 0;
 354    case PIPE_SHADER_VERTEX:
 355       switch (param)
 356       {
 357       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 358       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 359          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS, &result))
 360             return 512;
 361          return result.u;
 362       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 363       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 364          /* XXX: until we have vertex texture support */
 365          return 0;
 366       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 367          return SVGA3D_MAX_NESTING_LEVEL;
 368       case PIPE_SHADER_CAP_MAX_INPUTS:
 369          return 16;
 370       case PIPE_SHADER_CAP_MAX_CONSTS:
 371          return 256;
 372       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 373          return 1;
 374       case PIPE_SHADER_CAP_MAX_TEMPS:
 375          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS, &result))
 376             return 32;
 377          return MIN2(result.u, SVGA3D_TEMPREG_MAX);
 378       case PIPE_SHADER_CAP_MAX_ADDRS:
 379          return 1;
 380       case PIPE_SHADER_CAP_MAX_PREDS:
 381          return 1;
 382       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 383          return 0;
 384       case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 385          return 0;
 386       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 387       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 388          return 1;
 389       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 390          return 0;
 391       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 392          return 1;
 393       case PIPE_SHADER_CAP_SUBROUTINES:
 394          return 0;
 395       case PIPE_SHADER_CAP_INTEGERS:
 396          return 0;
 397       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 398       case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 399          return 0;
 400       case PIPE_SHADER_CAP_PREFERRED_IR:
 401          return PIPE_SHADER_IR_TGSI;
 402       }
 403       /* If we get here, we failed to handle a cap above */
 404       debug_printf("Unexpected vertex shader query %u\n", param);
 405       return 0;
 406    case PIPE_SHADER_GEOMETRY:
 407    case PIPE_SHADER_COMPUTE:
 408       /* no support for geometry or compute shaders at this time */
 409       return 0;
 410    default:
 411       debug_printf("Unexpected shader type (%u) query\n", shader);
 412       return 0;
 413    }
 414    return 0;
 415 }
 416
 417
 418 /**
 419  * Implemnt pipe_screen::is_format_supported().
 420  * \param bindings  bitmask of PIPE_BIND_x flags
 421  */
 422 static boolean
 423 svga_is_format_supported( struct pipe_screen *screen,
 424                           enum pipe_format format,
 425                           enum pipe_texture_target target,
 426                           unsigned sample_count,
 427                           unsigned bindings)
 428 {
 429    struct svga_screen *ss = svga_screen(screen);
 430    SVGA3dSurfaceFormat svga_format;
 431    SVGA3dSurfaceFormatCaps caps;
 432    SVGA3dSurfaceFormatCaps mask;
 433
 434    assert(bindings);
 435
 436    if (sample_count > 1) {
 437       return FALSE;
 438    }
 439
 440    svga_format = svga_translate_format(ss, format, bindings);
 441    if (svga_format == SVGA3D_FORMAT_INVALID) {
 442       return FALSE;
 443    }
 444
 445    /*
 446     * Override host capabilities, so that we end up with the same
 447     * visuals for all virtual hardware implementations.
 448     */
 449
 450    if (bindings & PIPE_BIND_DISPLAY_TARGET) {
 451       switch (svga_format) {
 452       case SVGA3D_A8R8G8B8:
 453       case SVGA3D_X8R8G8B8:
 454       case SVGA3D_R5G6B5:
 455          break;
 456
 457       /* Often unsupported/problematic. This means we end up with the same
 458        * visuals for all virtual hardware implementations.
 459        */
 460       case SVGA3D_A4R4G4B4:
 461       case SVGA3D_A1R5G5B5:
 462          return FALSE;
 463
 464       default:
 465          return FALSE;
 466       }
 467    }
 468
 469    /*
 470     * Query the host capabilities.
 471     */
 472
 473    svga_get_format_cap(ss, svga_format, &caps);
 474
 475    mask.value = 0;
 476    if (bindings & PIPE_BIND_RENDER_TARGET) {
 477       mask.offscreenRenderTarget = 1;
 478    }
 479    if (bindings & PIPE_BIND_DEPTH_STENCIL) {
 480       mask.zStencil = 1;
 481    }
 482    if (bindings & PIPE_BIND_SAMPLER_VIEW) {
 483       mask.texture = 1;
 484    }
 485
 486    if (target == PIPE_TEXTURE_CUBE) {
 487       mask.cubeTexture = 1;
 488    }
 489    if (target == PIPE_TEXTURE_3D) {
 490       mask.volumeTexture = 1;
 491    }
 492
 493    return (caps.value & mask.value) == mask.value;
 494 }
 495
 496
 497 static void
 498 svga_fence_reference(struct pipe_screen *screen,
 499                      struct pipe_fence_handle **ptr,
 500                      struct pipe_fence_handle *fence)
 501 {
 502    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 503    sws->fence_reference(sws, ptr, fence);
 504 }
 505
 506
 507 static boolean
 508 svga_fence_signalled(struct pipe_screen *screen,
 509                      struct pipe_fence_handle *fence)
 510 {
 511    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 512    return sws->fence_signalled(sws, fence, 0) == 0;
 513 }
 514
 515
 516 static boolean
 517 svga_fence_finish(struct pipe_screen *screen,
 518                   struct pipe_fence_handle *fence,
 519                   uint64_t timeout)
 520 {
 521    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 522
 523    SVGA_DBG(DEBUG_DMA|DEBUG_PERF, "%s fence_ptr %p\n",
 524             __FUNCTION__, fence);
 525
 526    return sws->fence_finish(sws, fence, 0) == 0;
 527 }
 528
 529
 530 static int
 531 svga_get_driver_query_info(struct pipe_screen *screen,
 532                            unsigned index,
 533                            struct pipe_driver_query_info *info)
 534 {
 535    static const struct pipe_driver_query_info queries[] = {
 536       {"draw-calls", SVGA_QUERY_DRAW_CALLS, 0, FALSE},
 537       {"fallbacks", SVGA_QUERY_FALLBACKS, 0, FALSE},
 538       {"memory-used", SVGA_QUERY_MEMORY_USED, 0, TRUE}
 539    };
 540
 541    if (!info)
 542       return Elements(queries);
 543
 544    if (index >= Elements(queries))
 545       return 0;
 546
 547    *info = queries[index];
 548    return 1;
 549 }
 550
 551
 552 static void
 553 svga_destroy_screen( struct pipe_screen *screen )
 554 {
 555    struct svga_screen *svgascreen = svga_screen(screen);
 556
 557    svga_screen_cache_cleanup(svgascreen);
 558
 559    pipe_mutex_destroy(svgascreen->swc_mutex);
 560    pipe_mutex_destroy(svgascreen->tex_mutex);
 561
 562    svgascreen->sws->destroy(svgascreen->sws);
 563
 564    FREE(svgascreen);
 565 }
 566
 567
 568 /**
 569  * Create a new svga_screen object
 570  */
 571 struct pipe_screen *
 572 svga_screen_create(struct svga_winsys_screen *sws)
 573 {
 574    struct svga_screen *svgascreen;
 575    struct pipe_screen *screen;
 576    SVGA3dDevCapResult result;
 577    boolean use_vs30, use_ps30;
 578
 579 #ifdef DEBUG
 580    SVGA_DEBUG = debug_get_flags_option("SVGA_DEBUG", svga_debug_flags, 0 );
 581 #endif
 582
 583    svgascreen = CALLOC_STRUCT(svga_screen);
 584    if (!svgascreen)
 585       goto error1;
 586
 587    svgascreen->debug.force_level_surface_view =
 588       debug_get_bool_option("SVGA_FORCE_LEVEL_SURFACE_VIEW", FALSE);
 589    svgascreen->debug.force_surface_view =
 590       debug_get_bool_option("SVGA_FORCE_SURFACE_VIEW", FALSE);
 591    svgascreen->debug.force_sampler_view =
 592       debug_get_bool_option("SVGA_FORCE_SAMPLER_VIEW", FALSE);
 593    svgascreen->debug.no_surface_view =
 594       debug_get_bool_option("SVGA_NO_SURFACE_VIEW", FALSE);
 595    svgascreen->debug.no_sampler_view =
 596       debug_get_bool_option("SVGA_NO_SAMPLER_VIEW", FALSE);
 597
 598    screen = &svgascreen->screen;
 599
 600    screen->destroy = svga_destroy_screen;
 601    screen->get_name = svga_get_name;
 602    screen->get_vendor = svga_get_vendor;
 603    screen->get_param = svga_get_param;
 604    screen->get_shader_param = svga_get_shader_param;
 605    screen->get_paramf = svga_get_paramf;
 606    screen->is_format_supported = svga_is_format_supported;
 607    screen->context_create = svga_context_create;
 608    screen->fence_reference = svga_fence_reference;
 609    screen->fence_signalled = svga_fence_signalled;
 610    screen->fence_finish = svga_fence_finish;
 611    screen->get_driver_query_info = svga_get_driver_query_info;
 612    svgascreen->sws = sws;
 613
 614    svga_init_screen_resource_functions(svgascreen);
 615
 616    if (sws->get_hw_version) {
 617       svgascreen->hw_version = sws->get_hw_version(sws);
 618    } else {
 619       svgascreen->hw_version = SVGA3D_HWVERSION_WS65_B1;
 620    }
 621
 622    use_ps30 =
 623       sws->get_cap(sws, SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION, &result) &&
 624       result.u >= SVGA3DPSVERSION_30 ? TRUE : FALSE;
 625
 626    use_vs30 =
 627       sws->get_cap(sws, SVGA3D_DEVCAP_VERTEX_SHADER_VERSION, &result) &&
 628       result.u >= SVGA3DVSVERSION_30 ? TRUE : FALSE;
 629
 630    /* we require Shader model 3.0 or later */
 631    if (!use_ps30 || !use_vs30)
 632       goto error2;
 633
 634    /*
 635     * The D16, D24X8, and D24S8 formats always do an implicit shadow compare
 636     * when sampled from, where as the DF16, DF24, and D24S8_INT do not.  So
 637     * we prefer the later when available.
 638     *
 639     * This mimics hardware vendors extensions for D3D depth sampling. See also
 640     * http://aras-p.info/texts/D3D9GPUHacks.html
 641     */
 642
 643    {
 644       boolean has_df16, has_df24, has_d24s8_int;
 645       SVGA3dSurfaceFormatCaps caps;
 646       SVGA3dSurfaceFormatCaps mask;
 647       mask.value = 0;
 648       mask.zStencil = 1;
 649       mask.texture = 1;
 650
 651       svgascreen->depth.z16 = SVGA3D_Z_D16;
 652       svgascreen->depth.x8z24 = SVGA3D_Z_D24X8;
 653       svgascreen->depth.s8z24 = SVGA3D_Z_D24S8;
 654
 655       svga_get_format_cap(svgascreen, SVGA3D_Z_DF16, &caps);
 656       has_df16 = (caps.value & mask.value) == mask.value;
 657
 658       svga_get_format_cap(svgascreen, SVGA3D_Z_DF24, &caps);
 659       has_df24 = (caps.value & mask.value) == mask.value;
 660
 661       svga_get_format_cap(svgascreen, SVGA3D_Z_D24S8_INT, &caps);
 662       has_d24s8_int = (caps.value & mask.value) == mask.value;
 663
 664       /* XXX: We might want some other logic here.
 665        * Like if we only have d24s8_int we should
 666        * emulate the other formats with that.
 667        */
 668       if (has_df16) {
 669          svgascreen->depth.z16 = SVGA3D_Z_DF16;
 670       }
 671       if (has_df24) {
 672          svgascreen->depth.x8z24 = SVGA3D_Z_DF24;
 673       }
 674       if (has_d24s8_int) {
 675          svgascreen->depth.s8z24 = SVGA3D_Z_D24S8_INT;
 676       }
 677    }
 678
 679    /* Query device caps
 680     */
 681    if (!sws->get_cap(sws, SVGA3D_DEVCAP_LINE_STIPPLE, &result))
 682       svgascreen->haveLineStipple = FALSE;
 683    else
 684       svgascreen->haveLineStipple = result.u;
 685
 686    if (!sws->get_cap(sws, SVGA3D_DEVCAP_LINE_AA, &result))
 687       svgascreen->haveLineSmooth = FALSE;
 688    else
 689       svgascreen->haveLineSmooth = result.u;
 690
 691    if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_LINE_WIDTH, &result))
 692       svgascreen->maxLineWidth = 1.0F;
 693    else
 694       svgascreen->maxLineWidth = result.f;
 695
 696    if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_AA_LINE_WIDTH, &result))
 697       svgascreen->maxLineWidthAA = 1.0F;
 698    else
 699       svgascreen->maxLineWidthAA = result.f;
 700
 701    if (0)
 702       debug_printf("svga: haveLineStip %u  "
 703                    "haveLineSmooth %u  maxLineWidth %f\n",
 704                    svgascreen->haveLineStipple, svgascreen->haveLineSmooth,
 705                    svgascreen->maxLineWidth);
 706
 707    if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_POINT_SIZE, &result)) {
 708       svgascreen->maxPointSize = 1.0F;
 709    } else {
 710       /* Keep this to a reasonable size to avoid failures in
 711        * conform/pntaa.c:
 712        */
 713       svgascreen->maxPointSize = MIN2(result.f, 80.0f);
 714    }
 715
 716    /* The SVGA3D device always supports 4 targets at this time, regardless
 717     * of what querying SVGA3D_DEVCAP_MAX_RENDER_TARGETS might return.
 718     */
 719    svgascreen->max_color_buffers = 4;
 720
 721    pipe_mutex_init(svgascreen->tex_mutex);
 722    pipe_mutex_init(svgascreen->swc_mutex);
 723
 724    svga_screen_cache_init(svgascreen);
 725
 726    return screen;
 727 error2:
 728    FREE(svgascreen);
 729 error1:
 730    return NULL;
 731 }
 732
 733 struct svga_winsys_screen *
 734 svga_winsys_screen(struct pipe_screen *screen)
 735 {
 736    return svga_screen(screen)->sws;
 737 }
 738
 739 #ifdef DEBUG
 740 struct svga_screen *
 741 svga_screen(struct pipe_screen *screen)
 742 {
 743    assert(screen);
 744    assert(screen->destroy == svga_destroy_screen);
 745    return (struct svga_screen *)screen;
 746 }
 747 #endif