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          return svgascreen->use_ps30 ? 1 : 0;
 229       case PIPE_SHADER_CAP_MAX_PREDS:
 230          return svgascreen->use_ps30 ? 1 : 0;
 231       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 232          return 1;
 233       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 234          return svgascreen->use_ps30 ? 1 : 0;
 235       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 236       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 237       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 238          return 0;
 239       case PIPE_SHADER_CAP_SUBROUTINES:
 240          return 0;
 241       }
 242       break;
 243    case PIPE_SHADER_VERTEX:
 244       switch (param)
 245       {
 246       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 247       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 248          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS, &result))
 249             return svgascreen->use_vs30 ? 512 : 256;
 250          return result.u;
 251       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 252       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 253          /* XXX: until we have vertex texture support */
 254          return 0;
 255       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 256          return SVGA3D_MAX_NESTING_LEVEL;
 257       case PIPE_SHADER_CAP_MAX_INPUTS:
 258          return 16;
 259       case PIPE_SHADER_CAP_MAX_CONSTS:
 260          return 256;
 261       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 262          return 1;
 263       case PIPE_SHADER_CAP_MAX_TEMPS:
 264          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS, &result))
 265             return svgascreen->use_vs30 ? 32 : 12;
 266          return result.u;
 267       case PIPE_SHADER_CAP_MAX_ADDRS:
 268          return svgascreen->use_vs30 ? 1 : 0;
 269       case PIPE_SHADER_CAP_MAX_PREDS:
 270          return svgascreen->use_vs30 ? 1 : 0;
 271       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 272          return 1;
 273       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 274       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 275          return svgascreen->use_vs30 ? 1 : 0;
 276       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 277          return 0;
 278       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 279          return 1;
 280       case PIPE_SHADER_CAP_SUBROUTINES:
 281          return 0;
 282       default:
 283          break;
 284       }
 285       break;
 286    default:
 287       break;
 288    }
 289    return 0;
 290 }
 291
 292 static INLINE SVGA3dDevCapIndex
 293 svga_translate_format_cap(enum pipe_format format)
 294 {
 295    switch(format) {
 296
 297    case PIPE_FORMAT_B8G8R8A8_UNORM:
 298       return SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8;
 299    case PIPE_FORMAT_B8G8R8X8_UNORM:
 300       return SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8;
 301
 302    case PIPE_FORMAT_B5G6R5_UNORM:
 303       return SVGA3D_DEVCAP_SURFACEFMT_R5G6B5;
 304    case PIPE_FORMAT_B5G5R5A1_UNORM:
 305       return SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5;
 306    case PIPE_FORMAT_B4G4R4A4_UNORM:
 307       return SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4;
 308
 309    case PIPE_FORMAT_Z16_UNORM:
 310       return SVGA3D_DEVCAP_SURFACEFMT_Z_D16;
 311    case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
 312       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8;
 313    case PIPE_FORMAT_X8Z24_UNORM:
 314       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8;
 315
 316    case PIPE_FORMAT_A8_UNORM:
 317       return SVGA3D_DEVCAP_SURFACEFMT_ALPHA8;
 318    case PIPE_FORMAT_L8_UNORM:
 319       return SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8;
 320
 321    case PIPE_FORMAT_DXT1_RGB:
 322    case PIPE_FORMAT_DXT1_RGBA:
 323       return SVGA3D_DEVCAP_SURFACEFMT_DXT1;
 324    case PIPE_FORMAT_DXT3_RGBA:
 325       return SVGA3D_DEVCAP_SURFACEFMT_DXT3;
 326    case PIPE_FORMAT_DXT5_RGBA:
 327       return SVGA3D_DEVCAP_SURFACEFMT_DXT5;
 328
 329    default:
 330       return SVGA3D_DEVCAP_MAX;
 331    }
 332 }
 333
 334
 335 static boolean
 336 svga_is_format_supported( struct pipe_screen *screen,
 337                           enum pipe_format format,
 338                           enum pipe_texture_target target,
 339                           unsigned sample_count,
 340                           unsigned tex_usage,
 341                           unsigned geom_flags )
 342 {
 343    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 344    SVGA3dDevCapIndex index;
 345    SVGA3dDevCapResult result;
 346
 347    assert(tex_usage);
 348
 349    if (sample_count > 1)
 350       return FALSE;
 351
 352    /* Override host capabilities */
 353    if (tex_usage & PIPE_BIND_RENDER_TARGET) {
 354       switch(format) {
 355
 356       /* Often unsupported/problematic. This means we end up with the same
 357        * visuals for all virtual hardware implementations.
 358        */
 359       case PIPE_FORMAT_B4G4R4A4_UNORM:
 360       case PIPE_FORMAT_B5G5R5A1_UNORM:
 361          return FALSE;
 362
 363       /* Simulate ability to render into compressed textures */
 364       case PIPE_FORMAT_DXT1_RGB:
 365       case PIPE_FORMAT_DXT1_RGBA:
 366       case PIPE_FORMAT_DXT3_RGBA:
 367       case PIPE_FORMAT_DXT5_RGBA:
 368          return TRUE;
 369
 370       default:
 371          break;
 372       }
 373    }
 374
 375    /* Try to query the host */
 376    index = svga_translate_format_cap(format);
 377    if( index < SVGA3D_DEVCAP_MAX &&
 378        sws->get_cap(sws, index, &result) )
 379    {
 380       SVGA3dSurfaceFormatCaps mask;
 381
 382       mask.value = 0;
 383       if (tex_usage & PIPE_BIND_RENDER_TARGET)
 384          mask.offscreenRenderTarget = 1;
 385       if (tex_usage & PIPE_BIND_DEPTH_STENCIL)
 386          mask.zStencil = 1;
 387       if (tex_usage & PIPE_BIND_SAMPLER_VIEW)
 388          mask.texture = 1;
 389
 390       if ((result.u & mask.value) == mask.value)
 391          return TRUE;
 392       else
 393          return FALSE;
 394    }
 395
 396    /* Use our translate functions directly rather than relying on a
 397     * duplicated list of supported formats which is prone to getting
 398     * out of sync:
 399     */
 400    if(tex_usage & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL))
 401       return svga_translate_format_render(format) != SVGA3D_FORMAT_INVALID;
 402    else
 403       return svga_translate_format(format) != SVGA3D_FORMAT_INVALID;
 404 }
 405
 406
 407 static void
 408 svga_fence_reference(struct pipe_screen *screen,
 409                      struct pipe_fence_handle **ptr,
 410                      struct pipe_fence_handle *fence)
 411 {
 412    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 413    sws->fence_reference(sws, ptr, fence);
 414 }
 415
 416
 417 static int
 418 svga_fence_signalled(struct pipe_screen *screen,
 419                      struct pipe_fence_handle *fence,
 420                      unsigned flag)
 421 {
 422    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 423    return sws->fence_signalled(sws, fence, flag);
 424 }
 425
 426
 427 static int
 428 svga_fence_finish(struct pipe_screen *screen,
 429                   struct pipe_fence_handle *fence,
 430                   unsigned flag)
 431 {
 432    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 433
 434    SVGA_DBG(DEBUG_DMA|DEBUG_PERF, "%s fence_ptr %p\n",
 435             __FUNCTION__, fence);
 436
 437    return sws->fence_finish(sws, fence, flag);
 438 }
 439
 440
 441 static void
 442 svga_destroy_screen( struct pipe_screen *screen )
 443 {
 444    struct svga_screen *svgascreen = svga_screen(screen);
 445
 446    svga_screen_cache_cleanup(svgascreen);
 447
 448    pipe_mutex_destroy(svgascreen->swc_mutex);
 449    pipe_mutex_destroy(svgascreen->tex_mutex);
 450
 451    svgascreen->sws->destroy(svgascreen->sws);
 452
 453    FREE(svgascreen);
 454 }
 455
 456
 457 /**
 458  * Create a new svga_screen object
 459  */
 460 struct pipe_screen *
 461 svga_screen_create(struct svga_winsys_screen *sws)
 462 {
 463    struct svga_screen *svgascreen;
 464    struct pipe_screen *screen;
 465    SVGA3dDevCapResult result;
 466
 467 #ifdef DEBUG
 468    SVGA_DEBUG = debug_get_flags_option("SVGA_DEBUG", svga_debug_flags, 0 );
 469 #endif
 470
 471    svgascreen = CALLOC_STRUCT(svga_screen);
 472    if (!svgascreen)
 473       goto error1;
 474
 475    svgascreen->debug.force_level_surface_view =
 476       debug_get_bool_option("SVGA_FORCE_LEVEL_SURFACE_VIEW", FALSE);
 477    svgascreen->debug.force_surface_view =
 478       debug_get_bool_option("SVGA_FORCE_SURFACE_VIEW", FALSE);
 479    svgascreen->debug.force_sampler_view =
 480       debug_get_bool_option("SVGA_FORCE_SAMPLER_VIEW", FALSE);
 481    svgascreen->debug.no_surface_view =
 482       debug_get_bool_option("SVGA_NO_SURFACE_VIEW", FALSE);
 483    svgascreen->debug.no_sampler_view =
 484       debug_get_bool_option("SVGA_NO_SAMPLER_VIEW", FALSE);
 485
 486    screen = &svgascreen->screen;
 487
 488    screen->destroy = svga_destroy_screen;
 489    screen->get_name = svga_get_name;
 490    screen->get_vendor = svga_get_vendor;
 491    screen->get_param = svga_get_param;
 492    screen->get_shader_param = svga_get_shader_param;
 493    screen->get_paramf = svga_get_paramf;
 494    screen->is_format_supported = svga_is_format_supported;
 495    screen->context_create = svga_context_create;
 496    screen->fence_reference = svga_fence_reference;
 497    screen->fence_signalled = svga_fence_signalled;
 498    screen->fence_finish = svga_fence_finish;
 499    svgascreen->sws = sws;
 500
 501    svga_init_screen_resource_functions(svgascreen);
 502
 503    svgascreen->use_ps30 =
 504       sws->get_cap(sws, SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION, &result) &&
 505       result.u >= SVGA3DPSVERSION_30 ? TRUE : FALSE;
 506
 507    svgascreen->use_vs30 =
 508       sws->get_cap(sws, SVGA3D_DEVCAP_VERTEX_SHADER_VERSION, &result) &&
 509       result.u >= SVGA3DVSVERSION_30 ? TRUE : FALSE;
 510
 511 #if 1
 512    /* Shader model 2.0 is unsupported at the moment. */
 513    if(!svgascreen->use_ps30 || !svgascreen->use_vs30)
 514       goto error2;
 515 #else
 516    if(debug_get_bool_option("SVGA_NO_SM30", FALSE))
 517       svgascreen->use_vs30 = svgascreen->use_ps30 = FALSE;
 518 #endif
 519
 520    pipe_mutex_init(svgascreen->tex_mutex);
 521    pipe_mutex_init(svgascreen->swc_mutex);
 522
 523    svga_screen_cache_init(svgascreen);
 524
 525    return screen;
 526 error2:
 527    FREE(svgascreen);
 528 error1:
 529    return NULL;
 530 }
 531
 532 struct svga_winsys_screen *
 533 svga_winsys_screen(struct pipe_screen *screen)
 534 {
 535    return svga_screen(screen)->sws;
 536 }
 537
 538 #ifdef DEBUG
 539 struct svga_screen *
 540 svga_screen(struct pipe_screen *screen)
 541 {
 542    assert(screen);
 543    assert(screen->destroy == svga_destroy_screen);
 544    return (struct svga_screen *)screen;
 545 }
 546 #endif