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
 185    default:
 186       return 0;
 187    }
 188 }
 189
 190
 191 /* This is a fairly pointless interface
 192  */
 193 static int
 194 svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
 195 {
 196    return (int) svga_get_paramf( screen, param );
 197 }
 198
 199 static int svga_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
 200 {
 201    struct svga_screen *svgascreen = svga_screen(screen);
 202    struct svga_winsys_screen *sws = svgascreen->sws;
 203    SVGA3dDevCapResult result;
 204
 205    switch (shader)
 206    {
 207    case PIPE_SHADER_FRAGMENT:
 208       switch (param)
 209       {
 210       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 211       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 212       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 213       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 214          return svgascreen->use_ps30 ? 512 : 96;
 215       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 216          return SVGA3D_MAX_NESTING_LEVEL;
 217       case PIPE_SHADER_CAP_MAX_INPUTS:
 218          return 10;
 219       case PIPE_SHADER_CAP_MAX_CONSTS:
 220          return svgascreen->use_ps30 ? 224 : 16;
 221       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 222          return 1;
 223       case PIPE_SHADER_CAP_MAX_TEMPS:
 224          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS, &result))
 225             return svgascreen->use_ps30 ? 32 : 12;
 226          return result.u;
 227       case PIPE_SHADER_CAP_MAX_ADDRS:
 228       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 229          /*
 230           * Although PS 3.0 has some addressing abilities it can only represent
 231           * loops that can be statically determined and unrolled. Given we can
 232           * only handle a subset of the cases that the state tracker already
 233           * does it is better to defer loop unrolling to the state tracker.
 234           */
 235          return 0;
 236       case PIPE_SHADER_CAP_MAX_PREDS:
 237          return svgascreen->use_ps30 ? 1 : 0;
 238       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 239          return 1;
 240       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 241       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 242       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 243          return 0;
 244       case PIPE_SHADER_CAP_SUBROUTINES:
 245          return 0;
 246       }
 247       break;
 248    case PIPE_SHADER_VERTEX:
 249       switch (param)
 250       {
 251       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 252       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 253          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS, &result))
 254             return svgascreen->use_vs30 ? 512 : 256;
 255          return result.u;
 256       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 257       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 258          /* XXX: until we have vertex texture support */
 259          return 0;
 260       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 261          return SVGA3D_MAX_NESTING_LEVEL;
 262       case PIPE_SHADER_CAP_MAX_INPUTS:
 263          return 16;
 264       case PIPE_SHADER_CAP_MAX_CONSTS:
 265          return 256;
 266       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 267          return 1;
 268       case PIPE_SHADER_CAP_MAX_TEMPS:
 269          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS, &result))
 270             return svgascreen->use_vs30 ? 32 : 12;
 271          return result.u;
 272       case PIPE_SHADER_CAP_MAX_ADDRS:
 273          return svgascreen->use_vs30 ? 1 : 0;
 274       case PIPE_SHADER_CAP_MAX_PREDS:
 275          return svgascreen->use_vs30 ? 1 : 0;
 276       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 277          return 1;
 278       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 279       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 280          return svgascreen->use_vs30 ? 1 : 0;
 281       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 282          return 0;
 283       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 284          return 1;
 285       case PIPE_SHADER_CAP_SUBROUTINES:
 286          return 0;
 287       default:
 288          break;
 289       }
 290       break;
 291    default:
 292       break;
 293    }
 294    return 0;
 295 }
 296
 297 static INLINE SVGA3dDevCapIndex
 298 svga_translate_format_cap(enum pipe_format format)
 299 {
 300    switch(format) {
 301
 302    case PIPE_FORMAT_B8G8R8A8_UNORM:
 303       return SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8;
 304    case PIPE_FORMAT_B8G8R8X8_UNORM:
 305       return SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8;
 306
 307    case PIPE_FORMAT_B5G6R5_UNORM:
 308       return SVGA3D_DEVCAP_SURFACEFMT_R5G6B5;
 309    case PIPE_FORMAT_B5G5R5A1_UNORM:
 310       return SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5;
 311    case PIPE_FORMAT_B4G4R4A4_UNORM:
 312       return SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4;
 313
 314    case PIPE_FORMAT_Z16_UNORM:
 315       return SVGA3D_DEVCAP_SURFACEFMT_Z_D16;
 316    case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
 317       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8;
 318    case PIPE_FORMAT_X8Z24_UNORM:
 319       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8;
 320
 321    case PIPE_FORMAT_A8_UNORM:
 322       return SVGA3D_DEVCAP_SURFACEFMT_ALPHA8;
 323    case PIPE_FORMAT_L8_UNORM:
 324       return SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8;
 325
 326    case PIPE_FORMAT_DXT1_RGB:
 327    case PIPE_FORMAT_DXT1_RGBA:
 328       return SVGA3D_DEVCAP_SURFACEFMT_DXT1;
 329    case PIPE_FORMAT_DXT3_RGBA:
 330       return SVGA3D_DEVCAP_SURFACEFMT_DXT3;
 331    case PIPE_FORMAT_DXT5_RGBA:
 332       return SVGA3D_DEVCAP_SURFACEFMT_DXT5;
 333
 334    default:
 335       return SVGA3D_DEVCAP_MAX;
 336    }
 337 }
 338
 339
 340 static boolean
 341 svga_is_format_supported( struct pipe_screen *screen,
 342                           enum pipe_format format,
 343                           enum pipe_texture_target target,
 344                           unsigned sample_count,
 345                           unsigned tex_usage,
 346                           unsigned geom_flags )
 347 {
 348    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 349    SVGA3dDevCapIndex index;
 350    SVGA3dDevCapResult result;
 351
 352    assert(tex_usage);
 353
 354    if (sample_count > 1)
 355       return FALSE;
 356
 357    /* Override host capabilities */
 358    if (tex_usage & PIPE_BIND_RENDER_TARGET) {
 359       switch(format) {
 360
 361       /* Often unsupported/problematic. This means we end up with the same
 362        * visuals for all virtual hardware implementations.
 363        */
 364       case PIPE_FORMAT_B4G4R4A4_UNORM:
 365       case PIPE_FORMAT_B5G5R5A1_UNORM:
 366          return FALSE;
 367
 368       default:
 369          break;
 370       }
 371    }
 372
 373    /* Try to query the host */
 374    index = svga_translate_format_cap(format);
 375    if( index < SVGA3D_DEVCAP_MAX &&
 376        sws->get_cap(sws, index, &result) )
 377    {
 378       SVGA3dSurfaceFormatCaps mask;
 379
 380       mask.value = 0;
 381       if (tex_usage & PIPE_BIND_RENDER_TARGET)
 382          mask.offscreenRenderTarget = 1;
 383       if (tex_usage & PIPE_BIND_DEPTH_STENCIL)
 384          mask.zStencil = 1;
 385       if (tex_usage & PIPE_BIND_SAMPLER_VIEW)
 386          mask.texture = 1;
 387
 388       if ((result.u & mask.value) == mask.value)
 389          return TRUE;
 390       else
 391          return FALSE;
 392    }
 393
 394    /* Use our translate functions directly rather than relying on a
 395     * duplicated list of supported formats which is prone to getting
 396     * out of sync:
 397     */
 398    if(tex_usage & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL))
 399       return svga_translate_format_render(format) != SVGA3D_FORMAT_INVALID;
 400    else
 401       return svga_translate_format(format) != SVGA3D_FORMAT_INVALID;
 402 }
 403
 404
 405 static void
 406 svga_fence_reference(struct pipe_screen *screen,
 407                      struct pipe_fence_handle **ptr,
 408                      struct pipe_fence_handle *fence)
 409 {
 410    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 411    sws->fence_reference(sws, ptr, fence);
 412 }
 413
 414
 415 static int
 416 svga_fence_signalled(struct pipe_screen *screen,
 417                      struct pipe_fence_handle *fence,
 418                      unsigned flag)
 419 {
 420    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 421    return sws->fence_signalled(sws, fence, flag);
 422 }
 423
 424
 425 static int
 426 svga_fence_finish(struct pipe_screen *screen,
 427                   struct pipe_fence_handle *fence,
 428                   unsigned flag)
 429 {
 430    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 431
 432    SVGA_DBG(DEBUG_DMA|DEBUG_PERF, "%s fence_ptr %p\n",
 433             __FUNCTION__, fence);
 434
 435    return sws->fence_finish(sws, fence, flag);
 436 }
 437
 438
 439 static void
 440 svga_destroy_screen( struct pipe_screen *screen )
 441 {
 442    struct svga_screen *svgascreen = svga_screen(screen);
 443
 444    svga_screen_cache_cleanup(svgascreen);
 445
 446    pipe_mutex_destroy(svgascreen->swc_mutex);
 447    pipe_mutex_destroy(svgascreen->tex_mutex);
 448
 449    svgascreen->sws->destroy(svgascreen->sws);
 450
 451    FREE(svgascreen);
 452 }
 453
 454
 455 /**
 456  * Create a new svga_screen object
 457  */
 458 struct pipe_screen *
 459 svga_screen_create(struct svga_winsys_screen *sws)
 460 {
 461    struct svga_screen *svgascreen;
 462    struct pipe_screen *screen;
 463    SVGA3dDevCapResult result;
 464
 465 #ifdef DEBUG
 466    SVGA_DEBUG = debug_get_flags_option("SVGA_DEBUG", svga_debug_flags, 0 );
 467 #endif
 468
 469    svgascreen = CALLOC_STRUCT(svga_screen);
 470    if (!svgascreen)
 471       goto error1;
 472
 473    svgascreen->debug.force_level_surface_view =
 474       debug_get_bool_option("SVGA_FORCE_LEVEL_SURFACE_VIEW", FALSE);
 475    svgascreen->debug.force_surface_view =
 476       debug_get_bool_option("SVGA_FORCE_SURFACE_VIEW", FALSE);
 477    svgascreen->debug.force_sampler_view =
 478       debug_get_bool_option("SVGA_FORCE_SAMPLER_VIEW", FALSE);
 479    svgascreen->debug.no_surface_view =
 480       debug_get_bool_option("SVGA_NO_SURFACE_VIEW", FALSE);
 481    svgascreen->debug.no_sampler_view =
 482       debug_get_bool_option("SVGA_NO_SAMPLER_VIEW", FALSE);
 483
 484    screen = &svgascreen->screen;
 485
 486    screen->destroy = svga_destroy_screen;
 487    screen->get_name = svga_get_name;
 488    screen->get_vendor = svga_get_vendor;
 489    screen->get_param = svga_get_param;
 490    screen->get_shader_param = svga_get_shader_param;
 491    screen->get_paramf = svga_get_paramf;
 492    screen->is_format_supported = svga_is_format_supported;
 493    screen->context_create = svga_context_create;
 494    screen->fence_reference = svga_fence_reference;
 495    screen->fence_signalled = svga_fence_signalled;
 496    screen->fence_finish = svga_fence_finish;
 497    svgascreen->sws = sws;
 498
 499    svga_init_screen_resource_functions(svgascreen);
 500
 501    svgascreen->use_ps30 =
 502       sws->get_cap(sws, SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION, &result) &&
 503       result.u >= SVGA3DPSVERSION_30 ? TRUE : FALSE;
 504
 505    svgascreen->use_vs30 =
 506       sws->get_cap(sws, SVGA3D_DEVCAP_VERTEX_SHADER_VERSION, &result) &&
 507       result.u >= SVGA3DVSVERSION_30 ? TRUE : FALSE;
 508
 509 #if 1
 510    /* Shader model 2.0 is unsupported at the moment. */
 511    if(!svgascreen->use_ps30 || !svgascreen->use_vs30)
 512       goto error2;
 513 #else
 514    if(debug_get_bool_option("SVGA_NO_SM30", FALSE))
 515       svgascreen->use_vs30 = svgascreen->use_ps30 = FALSE;
 516 #endif
 517
 518    pipe_mutex_init(svgascreen->tex_mutex);
 519    pipe_mutex_init(svgascreen->swc_mutex);
 520
 521    svga_screen_cache_init(svgascreen);
 522
 523    return screen;
 524 error2:
 525    FREE(svgascreen);
 526 error1:
 527    return NULL;
 528 }
 529
 530 struct svga_winsys_screen *
 531 svga_winsys_screen(struct pipe_screen *screen)
 532 {
 533    return svga_screen(screen)->sws;
 534 }
 535
 536 #ifdef DEBUG
 537 struct svga_screen *
 538 svga_screen(struct pipe_screen *screen)
 539 {
 540    assert(screen);
 541    assert(screen->destroy == svga_destroy_screen);
 542    return (struct svga_screen *)screen;
 543 }
 544 #endif