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, int 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_TEXTURE_SHADOW_MAP:
 138       return 1;
 139
 140    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 141       {
 142          unsigned levels = SVGA_MAX_TEXTURE_LEVELS;
 143          if (sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH, &result))
 144             levels = MIN2(util_logbase2(result.u) + 1, levels);
 145          else
 146             levels = 12 /* 2048x2048 */;
 147          if (sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT, &result))
 148             levels = MIN2(util_logbase2(result.u) + 1, levels);
 149          else
 150             levels = 12 /* 2048x2048 */;
 151          return levels;
 152       }
 153
 154    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 155       if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VOLUME_EXTENT, &result))
 156          return 8;  /* max 128x128x128 */
 157       return MIN2(util_logbase2(result.u) + 1, SVGA_MAX_TEXTURE_LEVELS);
 158
 159    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 160       /*
 161        * No mechanism to query the host, and at least limited to 2048x2048 on
 162        * certain hardware.
 163        */
 164       return MIN2(screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
 165                   12.0 /* 2048x2048 */);
 166
 167    case PIPE_CAP_TEXTURE_MIRROR_REPEAT: /* req. for GL 1.4 */
 168       return 1;
 169
 170    case PIPE_CAP_BLEND_EQUATION_SEPARATE: /* req. for GL 1.5 */
 171       return 1;
 172
 173    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 174    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 175       return 1;
 176    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 177    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 178       return 0;
 179
 180    default:
 181       return 0;
 182    }
 183 }
 184
 185
 186 /* This is a fairly pointless interface
 187  */
 188 static int
 189 svga_get_param(struct pipe_screen *screen, int param)
 190 {
 191    return (int) svga_get_paramf( screen, param );
 192 }
 193
 194
 195 static INLINE SVGA3dDevCapIndex
 196 svga_translate_format_cap(enum pipe_format format)
 197 {
 198    switch(format) {
 199
 200    case PIPE_FORMAT_B8G8R8A8_UNORM:
 201       return SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8;
 202    case PIPE_FORMAT_B8G8R8X8_UNORM:
 203       return SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8;
 204
 205    case PIPE_FORMAT_B5G6R5_UNORM:
 206       return SVGA3D_DEVCAP_SURFACEFMT_R5G6B5;
 207    case PIPE_FORMAT_B5G5R5A1_UNORM:
 208       return SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5;
 209    case PIPE_FORMAT_B4G4R4A4_UNORM:
 210       return SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4;
 211
 212    case PIPE_FORMAT_Z16_UNORM:
 213       return SVGA3D_DEVCAP_SURFACEFMT_Z_D16;
 214    case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
 215       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8;
 216    case PIPE_FORMAT_X8Z24_UNORM:
 217       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8;
 218
 219    case PIPE_FORMAT_A8_UNORM:
 220       return SVGA3D_DEVCAP_SURFACEFMT_ALPHA8;
 221    case PIPE_FORMAT_L8_UNORM:
 222       return SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8;
 223
 224    case PIPE_FORMAT_DXT1_RGB:
 225    case PIPE_FORMAT_DXT1_RGBA:
 226       return SVGA3D_DEVCAP_SURFACEFMT_DXT1;
 227    case PIPE_FORMAT_DXT3_RGBA:
 228       return SVGA3D_DEVCAP_SURFACEFMT_DXT3;
 229    case PIPE_FORMAT_DXT5_RGBA:
 230       return SVGA3D_DEVCAP_SURFACEFMT_DXT5;
 231
 232    default:
 233       return SVGA3D_DEVCAP_MAX;
 234    }
 235 }
 236
 237
 238 static boolean
 239 svga_is_format_supported( struct pipe_screen *screen,
 240                           enum pipe_format format,
 241                           enum pipe_texture_target target,
 242                           unsigned tex_usage,
 243                           unsigned geom_flags )
 244 {
 245    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 246    SVGA3dDevCapIndex index;
 247    SVGA3dDevCapResult result;
 248
 249    assert(tex_usage);
 250
 251    /* Override host capabilities */
 252    if (tex_usage & PIPE_BIND_RENDER_TARGET) {
 253       switch(format) {
 254
 255       /* Often unsupported/problematic. This means we end up with the same
 256        * visuals for all virtual hardware implementations.
 257        */
 258       case PIPE_FORMAT_B4G4R4A4_UNORM:
 259       case PIPE_FORMAT_B5G5R5A1_UNORM:
 260          return FALSE;
 261
 262       /* Simulate ability to render into compressed textures */
 263       case PIPE_FORMAT_DXT1_RGB:
 264       case PIPE_FORMAT_DXT1_RGBA:
 265       case PIPE_FORMAT_DXT3_RGBA:
 266       case PIPE_FORMAT_DXT5_RGBA:
 267          return TRUE;
 268
 269       default:
 270          break;
 271       }
 272    }
 273
 274    /* Try to query the host */
 275    index = svga_translate_format_cap(format);
 276    if( index < SVGA3D_DEVCAP_MAX &&
 277        sws->get_cap(sws, index, &result) )
 278    {
 279       SVGA3dSurfaceFormatCaps mask;
 280
 281       mask.value = 0;
 282       if (tex_usage & PIPE_BIND_RENDER_TARGET)
 283          mask.offscreenRenderTarget = 1;
 284       if (tex_usage & PIPE_BIND_DEPTH_STENCIL)
 285          mask.zStencil = 1;
 286       if (tex_usage & PIPE_BIND_SAMPLER_VIEW)
 287          mask.texture = 1;
 288
 289       if ((result.u & mask.value) == mask.value)
 290          return TRUE;
 291       else
 292          return FALSE;
 293    }
 294
 295    /* Use our translate functions directly rather than relying on a
 296     * duplicated list of supported formats which is prone to getting
 297     * out of sync:
 298     */
 299    if(tex_usage & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL))
 300       return svga_translate_format_render(format) != SVGA3D_FORMAT_INVALID;
 301    else
 302       return svga_translate_format(format) != SVGA3D_FORMAT_INVALID;
 303 }
 304
 305
 306 static void
 307 svga_fence_reference(struct pipe_screen *screen,
 308                      struct pipe_fence_handle **ptr,
 309                      struct pipe_fence_handle *fence)
 310 {
 311    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 312    sws->fence_reference(sws, ptr, fence);
 313 }
 314
 315
 316 static int
 317 svga_fence_signalled(struct pipe_screen *screen,
 318                      struct pipe_fence_handle *fence,
 319                      unsigned flag)
 320 {
 321    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 322    return sws->fence_signalled(sws, fence, flag);
 323 }
 324
 325
 326 static int
 327 svga_fence_finish(struct pipe_screen *screen,
 328                   struct pipe_fence_handle *fence,
 329                   unsigned flag)
 330 {
 331    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 332
 333    SVGA_DBG(DEBUG_DMA|DEBUG_PERF, "%s fence_ptr %p\n",
 334             __FUNCTION__, fence);
 335
 336    return sws->fence_finish(sws, fence, flag);
 337 }
 338
 339
 340 static void
 341 svga_destroy_screen( struct pipe_screen *screen )
 342 {
 343    struct svga_screen *svgascreen = svga_screen(screen);
 344
 345    svga_screen_cache_cleanup(svgascreen);
 346
 347    pipe_mutex_destroy(svgascreen->swc_mutex);
 348    pipe_mutex_destroy(svgascreen->tex_mutex);
 349
 350    svgascreen->sws->destroy(svgascreen->sws);
 351
 352    FREE(svgascreen);
 353 }
 354
 355
 356 /**
 357  * Create a new svga_screen object
 358  */
 359 struct pipe_screen *
 360 svga_screen_create(struct svga_winsys_screen *sws)
 361 {
 362    struct svga_screen *svgascreen;
 363    struct pipe_screen *screen;
 364    SVGA3dDevCapResult result;
 365
 366 #ifdef DEBUG
 367    SVGA_DEBUG = debug_get_flags_option("SVGA_DEBUG", svga_debug_flags, 0 );
 368 #endif
 369
 370    svgascreen = CALLOC_STRUCT(svga_screen);
 371    if (!svgascreen)
 372       goto error1;
 373
 374    svgascreen->debug.force_level_surface_view =
 375       debug_get_bool_option("SVGA_FORCE_LEVEL_SURFACE_VIEW", FALSE);
 376    svgascreen->debug.force_surface_view =
 377       debug_get_bool_option("SVGA_FORCE_SURFACE_VIEW", FALSE);
 378    svgascreen->debug.force_sampler_view =
 379       debug_get_bool_option("SVGA_FORCE_SAMPLER_VIEW", FALSE);
 380    svgascreen->debug.no_surface_view =
 381       debug_get_bool_option("SVGA_NO_SURFACE_VIEW", FALSE);
 382    svgascreen->debug.no_sampler_view =
 383       debug_get_bool_option("SVGA_NO_SAMPLER_VIEW", FALSE);
 384
 385    screen = &svgascreen->screen;
 386
 387    screen->destroy = svga_destroy_screen;
 388    screen->get_name = svga_get_name;
 389    screen->get_vendor = svga_get_vendor;
 390    screen->get_param = svga_get_param;
 391    screen->get_paramf = svga_get_paramf;
 392    screen->is_format_supported = svga_is_format_supported;
 393    screen->context_create = svga_context_create;
 394    screen->fence_reference = svga_fence_reference;
 395    screen->fence_signalled = svga_fence_signalled;
 396    screen->fence_finish = svga_fence_finish;
 397    svgascreen->sws = sws;
 398
 399    svga_screen_init_surface_functions(screen);
 400    svga_init_screen_resource_functions(svgascreen);
 401
 402    svgascreen->use_ps30 =
 403       sws->get_cap(sws, SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION, &result) &&
 404       result.u >= SVGA3DPSVERSION_30 ? TRUE : FALSE;
 405
 406    svgascreen->use_vs30 =
 407       sws->get_cap(sws, SVGA3D_DEVCAP_VERTEX_SHADER_VERSION, &result) &&
 408       result.u >= SVGA3DVSVERSION_30 ? TRUE : FALSE;
 409
 410 #if 1
 411    /* Shader model 2.0 is unsupported at the moment. */
 412    if(!svgascreen->use_ps30 || !svgascreen->use_vs30)
 413       goto error2;
 414 #else
 415    if(debug_get_bool_option("SVGA_NO_SM30", FALSE))
 416       svgascreen->use_vs30 = svgascreen->use_ps30 = FALSE;
 417 #endif
 418
 419    pipe_mutex_init(svgascreen->tex_mutex);
 420    pipe_mutex_init(svgascreen->swc_mutex);
 421
 422    svga_screen_cache_init(svgascreen);
 423
 424    return screen;
 425 error2:
 426    FREE(svgascreen);
 427 error1:
 428    return NULL;
 429 }
 430
 431 struct svga_winsys_screen *
 432 svga_winsys_screen(struct pipe_screen *screen)
 433 {
 434    return svga_screen(screen)->sws;
 435 }
 436
 437 #ifdef DEBUG
 438 struct svga_screen *
 439 svga_screen(struct pipe_screen *screen)
 440 {
 441    assert(screen);
 442    assert(screen->destroy == svga_destroy_screen);
 443    return (struct svga_screen *)screen;
 444 }
 445 #endif