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 #include "svga_surface.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 #ifdef DEBUG
  76    /* Only return internal details in the DEBUG version:
  77     */
  78    return "SVGA3D; build: DEBUG; mutex: " PIPE_ATOMIC;
  79 #else
  80    return "SVGA3D; build: RELEASE; ";
  81 #endif
  82 }
  83
  84
  85
  86
  87 static float
  88 svga_get_paramf(struct pipe_screen *screen, enum pipe_cap param)
  89 {
  90    struct svga_screen *svgascreen = svga_screen(screen);
  91    struct svga_winsys_screen *sws = svgascreen->sws;
  92    SVGA3dDevCapResult result;
  93
  94    switch (param) {
  95    case PIPE_CAP_MAX_LINE_WIDTH:
  96       /* fall-through */
  97    case PIPE_CAP_MAX_LINE_WIDTH_AA:
  98       return 7.0;
  99
 100    case PIPE_CAP_MAX_POINT_WIDTH:
 101       /* fall-through */
 102    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 103       /* Keep this to a reasonable size to avoid failures in
 104        * conform/pntaa.c:
 105        */
 106       return SVGA_MAX_POINTSIZE;
 107
 108    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 109       if(!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY, &result))
 110          return 4.0;
 111       return result.u;
 112
 113    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 114       return 16.0;
 115
 116    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 117       return 16;
 118    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 119       return 16;
 120    case PIPE_CAP_NPOT_TEXTURES:
 121       return 1;
 122    case PIPE_CAP_TWO_SIDED_STENCIL:
 123       return 1;
 124    case PIPE_CAP_GLSL:
 125       return svgascreen->use_ps30 && svgascreen->use_vs30;
 126    case PIPE_CAP_ANISOTROPIC_FILTER:
 127       return 1;
 128    case PIPE_CAP_POINT_SPRITE:
 129       return 1;
 130    case PIPE_CAP_MAX_RENDER_TARGETS:
 131       if(!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_RENDER_TARGETS, &result))
 132          return 1;
 133       if(!result.u)
 134          return 1;
 135       return MIN2(result.u, PIPE_MAX_COLOR_BUFS);
 136    case PIPE_CAP_OCCLUSION_QUERY:
 137       return 1;
 138    case PIPE_CAP_TIMER_QUERY:
 139       return 0;
 140    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 141       return 1;
 142
 143    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 144       {
 145          unsigned levels = SVGA_MAX_TEXTURE_LEVELS;
 146          if (sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH, &result))
 147             levels = MIN2(util_logbase2(result.u) + 1, levels);
 148          else
 149             levels = 12 /* 2048x2048 */;
 150          if (sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT, &result))
 151             levels = MIN2(util_logbase2(result.u) + 1, levels);
 152          else
 153             levels = 12 /* 2048x2048 */;
 154          return levels;
 155       }
 156
 157    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 158       if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VOLUME_EXTENT, &result))
 159          return 8;  /* max 128x128x128 */
 160       return MIN2(util_logbase2(result.u) + 1, SVGA_MAX_TEXTURE_LEVELS);
 161
 162    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 163       /*
 164        * No mechanism to query the host, and at least limited to 2048x2048 on
 165        * certain hardware.
 166        */
 167       return MIN2(screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
 168                   12.0 /* 2048x2048 */);
 169
 170    case PIPE_CAP_TEXTURE_MIRROR_REPEAT: /* req. for GL 1.4 */
 171       return 1;
 172
 173    case PIPE_CAP_BLEND_EQUATION_SEPARATE: /* req. for GL 1.5 */
 174       return 1;
 175
 176    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 177    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 178       return 1;
 179    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 180    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 181       return 0;
 182
 183    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 184       return 1;
 185
 186    default:
 187       return 0;
 188    }
 189 }
 190
 191
 192 /* This is a fairly pointless interface
 193  */
 194 static int
 195 svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
 196 {
 197    return (int) svga_get_paramf( screen, param );
 198 }
 199
 200 static int svga_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param)
 201 {
 202    struct svga_screen *svgascreen = svga_screen(screen);
 203    struct svga_winsys_screen *sws = svgascreen->sws;
 204    SVGA3dDevCapResult result;
 205
 206    switch (shader)
 207    {
 208    case PIPE_SHADER_FRAGMENT:
 209       switch (param)
 210       {
 211       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 212       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 213       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 214       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 215          return svgascreen->use_ps30 ? 512 : 96;
 216       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 217          return SVGA3D_MAX_NESTING_LEVEL;
 218       case PIPE_SHADER_CAP_MAX_INPUTS:
 219          return 10;
 220       case PIPE_SHADER_CAP_MAX_CONSTS:
 221          return svgascreen->use_ps30 ? 224 : 16;
 222       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 223          return 1;
 224       case PIPE_SHADER_CAP_MAX_TEMPS:
 225          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_FRAGMENT_SHADER_TEMPS, &result))
 226             return svgascreen->use_ps30 ? 32 : 12;
 227          return result.u;
 228       case PIPE_SHADER_CAP_MAX_ADDRS:
 229          return svgascreen->use_ps30 ? 1 : 0;
 230       case PIPE_SHADER_CAP_MAX_PREDS:
 231          return svgascreen->use_ps30 ? 1 : 0;
 232       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 233          return 1;
 234       }
 235       break;
 236    case PIPE_SHADER_VERTEX:
 237       switch (param)
 238       {
 239       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 240       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 241          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_INSTRUCTIONS, &result))
 242             return svgascreen->use_vs30 ? 512 : 256;
 243          return result.u;
 244       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 245       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 246          /* XXX: until we have vertex texture support */
 247          return 0;
 248       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 249          return SVGA3D_MAX_NESTING_LEVEL;
 250       case PIPE_SHADER_CAP_MAX_INPUTS:
 251          return 16;
 252       case PIPE_SHADER_CAP_MAX_CONSTS:
 253          return 256;
 254       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 255          return 1;
 256       case PIPE_SHADER_CAP_MAX_TEMPS:
 257          if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VERTEX_SHADER_TEMPS, &result))
 258             return svgascreen->use_vs30 ? 32 : 12;
 259          return result.u;
 260       case PIPE_SHADER_CAP_MAX_ADDRS:
 261          return svgascreen->use_vs30 ? 1 : 0;
 262       case PIPE_SHADER_CAP_MAX_PREDS:
 263          return svgascreen->use_vs30 ? 1 : 0;
 264       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 265          return 1;
 266       default:
 267          break;
 268       }
 269       break;
 270    default:
 271       break;
 272    }
 273    return 0;
 274 }
 275
 276 static INLINE SVGA3dDevCapIndex
 277 svga_translate_format_cap(enum pipe_format format)
 278 {
 279    switch(format) {
 280
 281    case PIPE_FORMAT_B8G8R8A8_UNORM:
 282       return SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8;
 283    case PIPE_FORMAT_B8G8R8X8_UNORM:
 284       return SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8;
 285
 286    case PIPE_FORMAT_B5G6R5_UNORM:
 287       return SVGA3D_DEVCAP_SURFACEFMT_R5G6B5;
 288    case PIPE_FORMAT_B5G5R5A1_UNORM:
 289       return SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5;
 290    case PIPE_FORMAT_B4G4R4A4_UNORM:
 291       return SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4;
 292
 293    case PIPE_FORMAT_Z16_UNORM:
 294       return SVGA3D_DEVCAP_SURFACEFMT_Z_D16;
 295    case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
 296       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8;
 297    case PIPE_FORMAT_X8Z24_UNORM:
 298       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8;
 299
 300    case PIPE_FORMAT_A8_UNORM:
 301       return SVGA3D_DEVCAP_SURFACEFMT_ALPHA8;
 302    case PIPE_FORMAT_L8_UNORM:
 303       return SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8;
 304
 305    case PIPE_FORMAT_DXT1_RGB:
 306    case PIPE_FORMAT_DXT1_RGBA:
 307       return SVGA3D_DEVCAP_SURFACEFMT_DXT1;
 308    case PIPE_FORMAT_DXT3_RGBA:
 309       return SVGA3D_DEVCAP_SURFACEFMT_DXT3;
 310    case PIPE_FORMAT_DXT5_RGBA:
 311       return SVGA3D_DEVCAP_SURFACEFMT_DXT5;
 312
 313    default:
 314       return SVGA3D_DEVCAP_MAX;
 315    }
 316 }
 317
 318
 319 static boolean
 320 svga_is_format_supported( struct pipe_screen *screen,
 321                           enum pipe_format format,
 322                           enum pipe_texture_target target,
 323                           unsigned sample_count,
 324                           unsigned tex_usage,
 325                           unsigned geom_flags )
 326 {
 327    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 328    SVGA3dDevCapIndex index;
 329    SVGA3dDevCapResult result;
 330
 331    assert(tex_usage);
 332
 333    if (sample_count > 1)
 334       return FALSE;
 335
 336    /* Override host capabilities */
 337    if (tex_usage & PIPE_BIND_RENDER_TARGET) {
 338       switch(format) {
 339
 340       /* Often unsupported/problematic. This means we end up with the same
 341        * visuals for all virtual hardware implementations.
 342        */
 343       case PIPE_FORMAT_B4G4R4A4_UNORM:
 344       case PIPE_FORMAT_B5G5R5A1_UNORM:
 345          return FALSE;
 346
 347       /* Simulate ability to render into compressed textures */
 348       case PIPE_FORMAT_DXT1_RGB:
 349       case PIPE_FORMAT_DXT1_RGBA:
 350       case PIPE_FORMAT_DXT3_RGBA:
 351       case PIPE_FORMAT_DXT5_RGBA:
 352          return TRUE;
 353
 354       default:
 355          break;
 356       }
 357    }
 358
 359    /* Try to query the host */
 360    index = svga_translate_format_cap(format);
 361    if( index < SVGA3D_DEVCAP_MAX &&
 362        sws->get_cap(sws, index, &result) )
 363    {
 364       SVGA3dSurfaceFormatCaps mask;
 365
 366       mask.value = 0;
 367       if (tex_usage & PIPE_BIND_RENDER_TARGET)
 368          mask.offscreenRenderTarget = 1;
 369       if (tex_usage & PIPE_BIND_DEPTH_STENCIL)
 370          mask.zStencil = 1;
 371       if (tex_usage & PIPE_BIND_SAMPLER_VIEW)
 372          mask.texture = 1;
 373
 374       if ((result.u & mask.value) == mask.value)
 375          return TRUE;
 376       else
 377          return FALSE;
 378    }
 379
 380    /* Use our translate functions directly rather than relying on a
 381     * duplicated list of supported formats which is prone to getting
 382     * out of sync:
 383     */
 384    if(tex_usage & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL))
 385       return svga_translate_format_render(format) != SVGA3D_FORMAT_INVALID;
 386    else
 387       return svga_translate_format(format) != SVGA3D_FORMAT_INVALID;
 388 }
 389
 390
 391 static void
 392 svga_fence_reference(struct pipe_screen *screen,
 393                      struct pipe_fence_handle **ptr,
 394                      struct pipe_fence_handle *fence)
 395 {
 396    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 397    sws->fence_reference(sws, ptr, fence);
 398 }
 399
 400
 401 static int
 402 svga_fence_signalled(struct pipe_screen *screen,
 403                      struct pipe_fence_handle *fence,
 404                      unsigned flag)
 405 {
 406    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 407    return sws->fence_signalled(sws, fence, flag);
 408 }
 409
 410
 411 static int
 412 svga_fence_finish(struct pipe_screen *screen,
 413                   struct pipe_fence_handle *fence,
 414                   unsigned flag)
 415 {
 416    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 417
 418    SVGA_DBG(DEBUG_DMA|DEBUG_PERF, "%s fence_ptr %p\n",
 419             __FUNCTION__, fence);
 420
 421    return sws->fence_finish(sws, fence, flag);
 422 }
 423
 424
 425 static void
 426 svga_destroy_screen( struct pipe_screen *screen )
 427 {
 428    struct svga_screen *svgascreen = svga_screen(screen);
 429
 430    svga_screen_cache_cleanup(svgascreen);
 431
 432    pipe_mutex_destroy(svgascreen->swc_mutex);
 433    pipe_mutex_destroy(svgascreen->tex_mutex);
 434
 435    svgascreen->sws->destroy(svgascreen->sws);
 436
 437    FREE(svgascreen);
 438 }
 439
 440
 441 /**
 442  * Create a new svga_screen object
 443  */
 444 struct pipe_screen *
 445 svga_screen_create(struct svga_winsys_screen *sws)
 446 {
 447    struct svga_screen *svgascreen;
 448    struct pipe_screen *screen;
 449    SVGA3dDevCapResult result;
 450
 451 #ifdef DEBUG
 452    SVGA_DEBUG = debug_get_flags_option("SVGA_DEBUG", svga_debug_flags, 0 );
 453 #endif
 454
 455    svgascreen = CALLOC_STRUCT(svga_screen);
 456    if (!svgascreen)
 457       goto error1;
 458
 459    svgascreen->debug.force_level_surface_view =
 460       debug_get_bool_option("SVGA_FORCE_LEVEL_SURFACE_VIEW", FALSE);
 461    svgascreen->debug.force_surface_view =
 462       debug_get_bool_option("SVGA_FORCE_SURFACE_VIEW", FALSE);
 463    svgascreen->debug.force_sampler_view =
 464       debug_get_bool_option("SVGA_FORCE_SAMPLER_VIEW", FALSE);
 465    svgascreen->debug.no_surface_view =
 466       debug_get_bool_option("SVGA_NO_SURFACE_VIEW", FALSE);
 467    svgascreen->debug.no_sampler_view =
 468       debug_get_bool_option("SVGA_NO_SAMPLER_VIEW", FALSE);
 469
 470    screen = &svgascreen->screen;
 471
 472    screen->destroy = svga_destroy_screen;
 473    screen->get_name = svga_get_name;
 474    screen->get_vendor = svga_get_vendor;
 475    screen->get_param = svga_get_param;
 476    screen->get_shader_param = svga_get_shader_param;
 477    screen->get_paramf = svga_get_paramf;
 478    screen->is_format_supported = svga_is_format_supported;
 479    screen->context_create = svga_context_create;
 480    screen->fence_reference = svga_fence_reference;
 481    screen->fence_signalled = svga_fence_signalled;
 482    screen->fence_finish = svga_fence_finish;
 483    svgascreen->sws = sws;
 484
 485    svga_screen_init_surface_functions(screen);
 486    svga_init_screen_resource_functions(svgascreen);
 487
 488    svgascreen->use_ps30 =
 489       sws->get_cap(sws, SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION, &result) &&
 490       result.u >= SVGA3DPSVERSION_30 ? TRUE : FALSE;
 491
 492    svgascreen->use_vs30 =
 493       sws->get_cap(sws, SVGA3D_DEVCAP_VERTEX_SHADER_VERSION, &result) &&
 494       result.u >= SVGA3DVSVERSION_30 ? TRUE : FALSE;
 495
 496 #if 1
 497    /* Shader model 2.0 is unsupported at the moment. */
 498    if(!svgascreen->use_ps30 || !svgascreen->use_vs30)
 499       goto error2;
 500 #else
 501    if(debug_get_bool_option("SVGA_NO_SM30", FALSE))
 502       svgascreen->use_vs30 = svgascreen->use_ps30 = FALSE;
 503 #endif
 504
 505    pipe_mutex_init(svgascreen->tex_mutex);
 506    pipe_mutex_init(svgascreen->swc_mutex);
 507
 508    svga_screen_cache_init(svgascreen);
 509
 510    return screen;
 511 error2:
 512    FREE(svgascreen);
 513 error1:
 514    return NULL;
 515 }
 516
 517 struct svga_winsys_screen *
 518 svga_winsys_screen(struct pipe_screen *screen)
 519 {
 520    return svga_screen(screen)->sws;
 521 }
 522
 523 #ifdef DEBUG
 524 struct svga_screen *
 525 svga_screen(struct pipe_screen *screen)
 526 {
 527    assert(screen);
 528    assert(screen->destroy == svga_destroy_screen);
 529    return (struct svga_screen *)screen;
 530 }
 531 #endif