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_context.h"
  33 #include "svga_screen.h"
  34 #include "svga_resource_texture.h"
  35 #include "svga_resource.h"
  36 #include "svga_debug.h"
  37 #include "svga_surface.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 },
  47    { "tgsi",     DEBUG_TGSI },
  48    { "pipe",     DEBUG_PIPE },
  49    { "state",    DEBUG_STATE },
  50    { "screen",   DEBUG_SCREEN },
  51    { "tex",      DEBUG_TEX },
  52    { "swtnl",    DEBUG_SWTNL },
  53    { "const",    DEBUG_CONSTS },
  54    { "viewport", DEBUG_VIEWPORT },
  55    { "views",    DEBUG_VIEWS },
  56    { "perf",     DEBUG_PERF },
  57    { "flush",    DEBUG_FLUSH },
  58    { "sync",     DEBUG_SYNC },
  59    { "cache",    DEBUG_CACHE },
  60    {NULL, 0}
  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    /*
 183     * Fragment shader limits
 184     */
 185
 186    case PIPE_CAP_MAX_FS_INSTRUCTIONS:
 187    case PIPE_CAP_MAX_FS_ALU_INSTRUCTIONS:
 188    case PIPE_CAP_MAX_FS_TEX_INSTRUCTIONS:
 189    case PIPE_CAP_MAX_FS_TEX_INDIRECTIONS:
 190       return svgascreen->use_ps30 ? 512 : 96;
 191    case PIPE_CAP_MAX_FS_CONTROL_FLOW_DEPTH:
 192       return SVGA3D_MAX_NESTING_LEVEL;
 193    case PIPE_CAP_MAX_FS_INPUTS:
 194       return 10;
 195    case PIPE_CAP_MAX_FS_CONSTS:
 196       return svgascreen->use_vs30 ? 224 : 16;
 197    case PIPE_CAP_MAX_FS_TEMPS:
 198       if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS, &result))
 199          return svgascreen->use_ps30 ? 32 : 12;
 200       return result.u;
 201    case PIPE_CAP_MAX_FS_ADDRS:
 202       return svgascreen->use_ps30 ? 1 : 0;
 203    case PIPE_CAP_MAX_FS_PREDS:
 204       return svgascreen->use_ps30 ? 1 : 0;
 205
 206    /*
 207     * Vertex shader limits
 208     */
 209    case PIPE_CAP_MAX_VS_INSTRUCTIONS:
 210    case PIPE_CAP_MAX_VS_ALU_INSTRUCTIONS:
 211       if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS, &result))
 212          return svgascreen->use_vs30 ? 512 : 256;
 213       return result.u;
 214    case PIPE_CAP_MAX_VS_TEX_INSTRUCTIONS:
 215    case PIPE_CAP_MAX_VS_TEX_INDIRECTIONS:
 216       /* XXX: until we have vertex texture support */
 217       return 0;
 218    case PIPE_CAP_MAX_VS_CONTROL_FLOW_DEPTH:
 219       return SVGA3D_MAX_NESTING_LEVEL;
 220    case PIPE_CAP_MAX_VS_INPUTS:
 221       return 16;
 222    case PIPE_CAP_MAX_VS_CONSTS:
 223       return 256;
 224    case PIPE_CAP_MAX_VS_TEMPS:
 225       if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS, &result))
 226          return svgascreen->use_vs30 ? 32 : 12;
 227       return result.u;
 228    case PIPE_CAP_MAX_VS_ADDRS:
 229       return svgascreen->use_vs30 ? 1 : 0;
 230    case PIPE_CAP_MAX_VS_PREDS:
 231       return svgascreen->use_vs30 ? 1 : 0;
 232
 233    default:
 234       return 0;
 235    }
 236 }
 237
 238
 239 /* This is a fairly pointless interface
 240  */
 241 static int
 242 svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
 243 {
 244    return (int) svga_get_paramf( screen, param );
 245 }
 246
 247
 248 static INLINE SVGA3dDevCapIndex
 249 svga_translate_format_cap(enum pipe_format format)
 250 {
 251    switch(format) {
 252
 253    case PIPE_FORMAT_B8G8R8A8_UNORM:
 254       return SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8;
 255    case PIPE_FORMAT_B8G8R8X8_UNORM:
 256       return SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8;
 257
 258    case PIPE_FORMAT_B5G6R5_UNORM:
 259       return SVGA3D_DEVCAP_SURFACEFMT_R5G6B5;
 260    case PIPE_FORMAT_B5G5R5A1_UNORM:
 261       return SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5;
 262    case PIPE_FORMAT_B4G4R4A4_UNORM:
 263       return SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4;
 264
 265    case PIPE_FORMAT_Z16_UNORM:
 266       return SVGA3D_DEVCAP_SURFACEFMT_Z_D16;
 267    case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
 268       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8;
 269    case PIPE_FORMAT_X8Z24_UNORM:
 270       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8;
 271
 272    case PIPE_FORMAT_A8_UNORM:
 273       return SVGA3D_DEVCAP_SURFACEFMT_ALPHA8;
 274    case PIPE_FORMAT_L8_UNORM:
 275       return SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8;
 276
 277    case PIPE_FORMAT_DXT1_RGB:
 278    case PIPE_FORMAT_DXT1_RGBA:
 279       return SVGA3D_DEVCAP_SURFACEFMT_DXT1;
 280    case PIPE_FORMAT_DXT3_RGBA:
 281       return SVGA3D_DEVCAP_SURFACEFMT_DXT3;
 282    case PIPE_FORMAT_DXT5_RGBA:
 283       return SVGA3D_DEVCAP_SURFACEFMT_DXT5;
 284
 285    default:
 286       return SVGA3D_DEVCAP_MAX;
 287    }
 288 }
 289
 290
 291 static boolean
 292 svga_is_format_supported( struct pipe_screen *screen,
 293                           enum pipe_format format,
 294                           enum pipe_texture_target target,
 295                           unsigned sample_count,
 296                           unsigned tex_usage,
 297                           unsigned geom_flags )
 298 {
 299    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 300    SVGA3dDevCapIndex index;
 301    SVGA3dDevCapResult result;
 302
 303    assert(tex_usage);
 304
 305    if (sample_count > 1)
 306       return FALSE;
 307
 308    /* Override host capabilities */
 309    if (tex_usage & PIPE_BIND_RENDER_TARGET) {
 310       switch(format) {
 311
 312       /* Often unsupported/problematic. This means we end up with the same
 313        * visuals for all virtual hardware implementations.
 314        */
 315       case PIPE_FORMAT_B4G4R4A4_UNORM:
 316       case PIPE_FORMAT_B5G5R5A1_UNORM:
 317          return FALSE;
 318
 319       /* Simulate ability to render into compressed textures */
 320       case PIPE_FORMAT_DXT1_RGB:
 321       case PIPE_FORMAT_DXT1_RGBA:
 322       case PIPE_FORMAT_DXT3_RGBA:
 323       case PIPE_FORMAT_DXT5_RGBA:
 324          return TRUE;
 325
 326       default:
 327          break;
 328       }
 329    }
 330
 331    /* Try to query the host */
 332    index = svga_translate_format_cap(format);
 333    if( index < SVGA3D_DEVCAP_MAX &&
 334        sws->get_cap(sws, index, &result) )
 335    {
 336       SVGA3dSurfaceFormatCaps mask;
 337
 338       mask.value = 0;
 339       if (tex_usage & PIPE_BIND_RENDER_TARGET)
 340          mask.offscreenRenderTarget = 1;
 341       if (tex_usage & PIPE_BIND_DEPTH_STENCIL)
 342          mask.zStencil = 1;
 343       if (tex_usage & PIPE_BIND_SAMPLER_VIEW)
 344          mask.texture = 1;
 345
 346       if ((result.u & mask.value) == mask.value)
 347          return TRUE;
 348       else
 349          return FALSE;
 350    }
 351
 352    /* Use our translate functions directly rather than relying on a
 353     * duplicated list of supported formats which is prone to getting
 354     * out of sync:
 355     */
 356    if(tex_usage & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL))
 357       return svga_translate_format_render(format) != SVGA3D_FORMAT_INVALID;
 358    else
 359       return svga_translate_format(format) != SVGA3D_FORMAT_INVALID;
 360 }
 361
 362
 363 static void
 364 svga_fence_reference(struct pipe_screen *screen,
 365                      struct pipe_fence_handle **ptr,
 366                      struct pipe_fence_handle *fence)
 367 {
 368    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 369    sws->fence_reference(sws, ptr, fence);
 370 }
 371
 372
 373 static int
 374 svga_fence_signalled(struct pipe_screen *screen,
 375                      struct pipe_fence_handle *fence,
 376                      unsigned flag)
 377 {
 378    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 379    return sws->fence_signalled(sws, fence, flag);
 380 }
 381
 382
 383 static int
 384 svga_fence_finish(struct pipe_screen *screen,
 385                   struct pipe_fence_handle *fence,
 386                   unsigned flag)
 387 {
 388    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 389
 390    SVGA_DBG(DEBUG_DMA|DEBUG_PERF, "%s fence_ptr %p\n",
 391             __FUNCTION__, fence);
 392
 393    return sws->fence_finish(sws, fence, flag);
 394 }
 395
 396
 397 static void
 398 svga_destroy_screen( struct pipe_screen *screen )
 399 {
 400    struct svga_screen *svgascreen = svga_screen(screen);
 401
 402    svga_screen_cache_cleanup(svgascreen);
 403
 404    pipe_mutex_destroy(svgascreen->swc_mutex);
 405    pipe_mutex_destroy(svgascreen->tex_mutex);
 406
 407    svgascreen->sws->destroy(svgascreen->sws);
 408
 409    FREE(svgascreen);
 410 }
 411
 412
 413 /**
 414  * Create a new svga_screen object
 415  */
 416 struct pipe_screen *
 417 svga_screen_create(struct svga_winsys_screen *sws)
 418 {
 419    struct svga_screen *svgascreen;
 420    struct pipe_screen *screen;
 421    SVGA3dDevCapResult result;
 422
 423 #ifdef DEBUG
 424    SVGA_DEBUG = debug_get_flags_option("SVGA_DEBUG", svga_debug_flags, 0 );
 425 #endif
 426
 427    svgascreen = CALLOC_STRUCT(svga_screen);
 428    if (!svgascreen)
 429       goto error1;
 430
 431    svgascreen->debug.force_level_surface_view =
 432       debug_get_bool_option("SVGA_FORCE_LEVEL_SURFACE_VIEW", FALSE);
 433    svgascreen->debug.force_surface_view =
 434       debug_get_bool_option("SVGA_FORCE_SURFACE_VIEW", FALSE);
 435    svgascreen->debug.force_sampler_view =
 436       debug_get_bool_option("SVGA_FORCE_SAMPLER_VIEW", FALSE);
 437    svgascreen->debug.no_surface_view =
 438       debug_get_bool_option("SVGA_NO_SURFACE_VIEW", FALSE);
 439    svgascreen->debug.no_sampler_view =
 440       debug_get_bool_option("SVGA_NO_SAMPLER_VIEW", FALSE);
 441
 442    screen = &svgascreen->screen;
 443
 444    screen->destroy = svga_destroy_screen;
 445    screen->get_name = svga_get_name;
 446    screen->get_vendor = svga_get_vendor;
 447    screen->get_param = svga_get_param;
 448    screen->get_paramf = svga_get_paramf;
 449    screen->is_format_supported = svga_is_format_supported;
 450    screen->context_create = svga_context_create;
 451    screen->fence_reference = svga_fence_reference;
 452    screen->fence_signalled = svga_fence_signalled;
 453    screen->fence_finish = svga_fence_finish;
 454    svgascreen->sws = sws;
 455
 456    svga_screen_init_surface_functions(screen);
 457    svga_init_screen_resource_functions(svgascreen);
 458
 459    svgascreen->use_ps30 =
 460       sws->get_cap(sws, SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION, &result) &&
 461       result.u >= SVGA3DPSVERSION_30 ? TRUE : FALSE;
 462
 463    svgascreen->use_vs30 =
 464       sws->get_cap(sws, SVGA3D_DEVCAP_VERTEX_SHADER_VERSION, &result) &&
 465       result.u >= SVGA3DVSVERSION_30 ? TRUE : FALSE;
 466
 467 #if 1
 468    /* Shader model 2.0 is unsupported at the moment. */
 469    if(!svgascreen->use_ps30 || !svgascreen->use_vs30)
 470       goto error2;
 471 #else
 472    if(debug_get_bool_option("SVGA_NO_SM30", FALSE))
 473       svgascreen->use_vs30 = svgascreen->use_ps30 = FALSE;
 474 #endif
 475
 476    pipe_mutex_init(svgascreen->tex_mutex);
 477    pipe_mutex_init(svgascreen->swc_mutex);
 478
 479    svga_screen_cache_init(svgascreen);
 480
 481    return screen;
 482 error2:
 483    FREE(svgascreen);
 484 error1:
 485    return NULL;
 486 }
 487
 488 struct svga_winsys_screen *
 489 svga_winsys_screen(struct pipe_screen *screen)
 490 {
 491    return svga_screen(screen)->sws;
 492 }
 493
 494 #ifdef DEBUG
 495 struct svga_screen *
 496 svga_screen(struct pipe_screen *screen)
 497 {
 498    assert(screen);
 499    assert(screen->destroy == svga_destroy_screen);
 500    return (struct svga_screen *)screen;
 501 }
 502 #endif