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