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