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_screen_texture.h"
  35 #include "svga_screen_buffer.h"
  36 #include "svga_debug.h"
  37
  38 #include "svga3d_shaderdefs.h"
  39
  40
  41 #ifdef DEBUG
  42 int SVGA_DEBUG = 0;
  43
  44 static const struct debug_named_value svga_debug_flags[] = {
  45    { "dma",      DEBUG_DMA },
  46    { "tgsi",     DEBUG_TGSI },
  47    { "pipe",     DEBUG_PIPE },
  48    { "state",    DEBUG_STATE },
  49    { "screen",   DEBUG_SCREEN },
  50    { "tex",      DEBUG_TEX },
  51    { "swtnl",    DEBUG_SWTNL },
  52    { "const",    DEBUG_CONSTS },
  53    { "viewport", DEBUG_VIEWPORT },
  54    { "views",    DEBUG_VIEWS },
  55    { "perf",     DEBUG_PERF },
  56    { "flush",    DEBUG_FLUSH },
  57    { "sync",     DEBUG_SYNC },
  58    { "cache",    DEBUG_CACHE },
  59    {NULL, 0}
  60 };
  61 #endif
  62
  63 static const char *
  64 svga_get_vendor( struct pipe_screen *pscreen )
  65 {
  66    return "VMware, Inc.";
  67 }
  68
  69
  70 static const char *
  71 svga_get_name( struct pipe_screen *pscreen )
  72 {
  73 #ifdef DEBUG
  74    /* Only return internal details in the DEBUG version:
  75     */
  76    return "SVGA3D; build: DEBUG; mutex: " PIPE_ATOMIC;
  77 #else
  78    return "SVGA3D; build: RELEASE; ";
  79 #endif
  80 }
  81
  82
  83
  84
  85 static float
  86 svga_get_paramf(struct pipe_screen *screen, int param)
  87 {
  88    struct svga_screen *svgascreen = svga_screen(screen);
  89    struct svga_winsys_screen *sws = svgascreen->sws;
  90    SVGA3dDevCapResult result;
  91
  92    switch (param) {
  93    case PIPE_CAP_MAX_LINE_WIDTH:
  94       /* fall-through */
  95    case PIPE_CAP_MAX_LINE_WIDTH_AA:
  96       return 7.0;
  97
  98    case PIPE_CAP_MAX_POINT_WIDTH:
  99       /* fall-through */
 100    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 101       /* Keep this to a reasonable size to avoid failures in
 102        * conform/pntaa.c:
 103        */
 104       return SVGA_MAX_POINTSIZE;
 105
 106    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 107       if(!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_ANISOTROPY, &result))
 108          return 4.0;
 109       return result.u;
 110
 111    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 112       return 16.0;
 113
 114    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 115       return 16;
 116    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 117       return 16;
 118    case PIPE_CAP_NPOT_TEXTURES:
 119       return 1;
 120    case PIPE_CAP_TWO_SIDED_STENCIL:
 121       return 1;
 122    case PIPE_CAP_GLSL:
 123       return svgascreen->use_ps30 && svgascreen->use_vs30;
 124    case PIPE_CAP_ANISOTROPIC_FILTER:
 125       return 1;
 126    case PIPE_CAP_POINT_SPRITE:
 127       return 1;
 128    case PIPE_CAP_MAX_RENDER_TARGETS:
 129       if(!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_RENDER_TARGETS, &result))
 130          return 1;
 131       if(!result.u)
 132          return 1;
 133       return MIN2(result.u, PIPE_MAX_COLOR_BUFS);
 134    case PIPE_CAP_OCCLUSION_QUERY:
 135       return 1;
 136    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 137       return 1;
 138
 139    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 140       {
 141          unsigned levels = SVGA_MAX_TEXTURE_LEVELS;
 142          if (sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH, &result))
 143             levels = MIN2(util_logbase2(result.u) + 1, levels);
 144          else
 145             levels = 12 /* 2048x2048 */;
 146          if (sws->get_cap(sws, SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT, &result))
 147             levels = MIN2(util_logbase2(result.u) + 1, levels);
 148          else
 149             levels = 12 /* 2048x2048 */;
 150          return levels;
 151       }
 152
 153    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 154       if (!sws->get_cap(sws, SVGA3D_DEVCAP_MAX_VOLUME_EXTENT, &result))
 155          return 8;  /* max 128x128x128 */
 156       return MIN2(util_logbase2(result.u) + 1, SVGA_MAX_TEXTURE_LEVELS);
 157
 158    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 159       /*
 160        * No mechanism to query the host, and at least limited to 2048x2048 on
 161        * certain hardware.
 162        */
 163       return MIN2(screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
 164                   12.0 /* 2048x2048 */);
 165
 166    case PIPE_CAP_TEXTURE_MIRROR_REPEAT: /* req. for GL 1.4 */
 167       return 1;
 168
 169    case PIPE_CAP_BLEND_EQUATION_SEPARATE: /* req. for GL 1.5 */
 170       return 1;
 171
 172    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 173    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 174       return 1;
 175    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 176    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 177       return 0;
 178
 179    default:
 180       return 0;
 181    }
 182 }
 183
 184
 185 /* This is a fairly pointless interface
 186  */
 187 static int
 188 svga_get_param(struct pipe_screen *screen, int param)
 189 {
 190    return (int) svga_get_paramf( screen, param );
 191 }
 192
 193
 194 static INLINE SVGA3dDevCapIndex
 195 svga_translate_format_cap(enum pipe_format format)
 196 {
 197    switch(format) {
 198
 199    case PIPE_FORMAT_B8G8R8A8_UNORM:
 200       return SVGA3D_DEVCAP_SURFACEFMT_A8R8G8B8;
 201    case PIPE_FORMAT_B8G8R8X8_UNORM:
 202       return SVGA3D_DEVCAP_SURFACEFMT_X8R8G8B8;
 203
 204    case PIPE_FORMAT_B5G6R5_UNORM:
 205       return SVGA3D_DEVCAP_SURFACEFMT_R5G6B5;
 206    case PIPE_FORMAT_B5G5R5A1_UNORM:
 207       return SVGA3D_DEVCAP_SURFACEFMT_A1R5G5B5;
 208    case PIPE_FORMAT_B4G4R4A4_UNORM:
 209       return SVGA3D_DEVCAP_SURFACEFMT_A4R4G4B4;
 210
 211    case PIPE_FORMAT_Z16_UNORM:
 212       return SVGA3D_DEVCAP_SURFACEFMT_Z_D16;
 213    case PIPE_FORMAT_S8Z24_UNORM:
 214       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24S8;
 215    case PIPE_FORMAT_X8Z24_UNORM:
 216       return SVGA3D_DEVCAP_SURFACEFMT_Z_D24X8;
 217
 218    case PIPE_FORMAT_A8_UNORM:
 219       return SVGA3D_DEVCAP_SURFACEFMT_ALPHA8;
 220    case PIPE_FORMAT_L8_UNORM:
 221       return SVGA3D_DEVCAP_SURFACEFMT_LUMINANCE8;
 222
 223    case PIPE_FORMAT_DXT1_RGB:
 224    case PIPE_FORMAT_DXT1_RGBA:
 225       return SVGA3D_DEVCAP_SURFACEFMT_DXT1;
 226    case PIPE_FORMAT_DXT3_RGBA:
 227       return SVGA3D_DEVCAP_SURFACEFMT_DXT3;
 228    case PIPE_FORMAT_DXT5_RGBA:
 229       return SVGA3D_DEVCAP_SURFACEFMT_DXT5;
 230
 231    default:
 232       return SVGA3D_DEVCAP_MAX;
 233    }
 234 }
 235
 236
 237 static boolean
 238 svga_is_format_supported( struct pipe_screen *screen,
 239                           enum pipe_format format,
 240                           enum pipe_texture_target target,
 241                           unsigned tex_usage,
 242                           unsigned geom_flags )
 243 {
 244    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 245    SVGA3dDevCapIndex index;
 246    SVGA3dDevCapResult result;
 247
 248    assert(tex_usage);
 249
 250    /* Override host capabilities */
 251    if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET) {
 252       switch(format) {
 253
 254       /* Often unsupported/problematic. This means we end up with the same
 255        * visuals for all virtual hardware implementations.
 256        */
 257       case PIPE_FORMAT_B4G4R4A4_UNORM:
 258       case PIPE_FORMAT_B5G5R5A1_UNORM:
 259          return FALSE;
 260
 261       /* Simulate ability to render into compressed textures */
 262       case PIPE_FORMAT_DXT1_RGB:
 263       case PIPE_FORMAT_DXT1_RGBA:
 264       case PIPE_FORMAT_DXT3_RGBA:
 265       case PIPE_FORMAT_DXT5_RGBA:
 266          return TRUE;
 267
 268       default:
 269          break;
 270       }
 271    }
 272
 273    /* Try to query the host */
 274    index = svga_translate_format_cap(format);
 275    if( index < SVGA3D_DEVCAP_MAX &&
 276        sws->get_cap(sws, index, &result) )
 277    {
 278       SVGA3dSurfaceFormatCaps mask;
 279
 280       mask.value = 0;
 281       if (tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET)
 282          mask.offscreenRenderTarget = 1;
 283       if (tex_usage & PIPE_TEXTURE_USAGE_DEPTH_STENCIL)
 284          mask.zStencil = 1;
 285       if (tex_usage & PIPE_TEXTURE_USAGE_SAMPLER)
 286          mask.texture = 1;
 287
 288       if ((result.u & mask.value) == mask.value)
 289          return TRUE;
 290       else
 291          return FALSE;
 292    }
 293
 294    /* Use our translate functions directly rather than relying on a
 295     * duplicated list of supported formats which is prone to getting
 296     * out of sync:
 297     */
 298    if(tex_usage & (PIPE_TEXTURE_USAGE_RENDER_TARGET | PIPE_TEXTURE_USAGE_DEPTH_STENCIL))
 299       return svga_translate_format_render(format) != SVGA3D_FORMAT_INVALID;
 300    else
 301       return svga_translate_format(format) != SVGA3D_FORMAT_INVALID;
 302 }
 303
 304
 305 static void
 306 svga_fence_reference(struct pipe_screen *screen,
 307                      struct pipe_fence_handle **ptr,
 308                      struct pipe_fence_handle *fence)
 309 {
 310    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 311    sws->fence_reference(sws, ptr, fence);
 312 }
 313
 314
 315 static int
 316 svga_fence_signalled(struct pipe_screen *screen,
 317                      struct pipe_fence_handle *fence,
 318                      unsigned flag)
 319 {
 320    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 321    return sws->fence_signalled(sws, fence, flag);
 322 }
 323
 324
 325 static int
 326 svga_fence_finish(struct pipe_screen *screen,
 327                   struct pipe_fence_handle *fence,
 328                   unsigned flag)
 329 {
 330    struct svga_winsys_screen *sws = svga_screen(screen)->sws;
 331
 332    SVGA_DBG(DEBUG_DMA|DEBUG_PERF, "%s fence_ptr %p\n",
 333             __FUNCTION__, fence);
 334
 335    return sws->fence_finish(sws, fence, flag);
 336 }
 337
 338
 339 static void
 340 svga_destroy_screen( struct pipe_screen *screen )
 341 {
 342    struct svga_screen *svgascreen = svga_screen(screen);
 343
 344    svga_screen_cache_cleanup(svgascreen);
 345
 346    pipe_mutex_destroy(svgascreen->swc_mutex);
 347    pipe_mutex_destroy(svgascreen->tex_mutex);
 348
 349    svgascreen->swc->destroy(svgascreen->swc);
 350
 351    svgascreen->sws->destroy(svgascreen->sws);
 352
 353    FREE(svgascreen);
 354 }
 355
 356
 357 /**
 358  * Create a new svga_screen object
 359  */
 360 struct pipe_screen *
 361 svga_screen_create(struct svga_winsys_screen *sws)
 362 {
 363    struct svga_screen *svgascreen;
 364    struct pipe_screen *screen;
 365    SVGA3dDevCapResult result;
 366
 367 #ifdef DEBUG
 368    SVGA_DEBUG = debug_get_flags_option("SVGA_DEBUG", svga_debug_flags, 0 );
 369 #endif
 370
 371    svgascreen = CALLOC_STRUCT(svga_screen);
 372    if (!svgascreen)
 373       goto error1;
 374
 375    svgascreen->debug.force_level_surface_view =
 376       debug_get_bool_option("SVGA_FORCE_LEVEL_SURFACE_VIEW", FALSE);
 377    svgascreen->debug.force_surface_view =
 378       debug_get_bool_option("SVGA_FORCE_SURFACE_VIEW", FALSE);
 379    svgascreen->debug.force_sampler_view =
 380       debug_get_bool_option("SVGA_FORCE_SAMPLER_VIEW", FALSE);
 381    svgascreen->debug.no_surface_view =
 382       debug_get_bool_option("SVGA_NO_SURFACE_VIEW", FALSE);
 383    svgascreen->debug.no_sampler_view =
 384       debug_get_bool_option("SVGA_NO_SAMPLER_VIEW", FALSE);
 385
 386    screen = &svgascreen->screen;
 387
 388    screen->destroy = svga_destroy_screen;
 389    screen->get_name = svga_get_name;
 390    screen->get_vendor = svga_get_vendor;
 391    screen->get_param = svga_get_param;
 392    screen->get_paramf = svga_get_paramf;
 393    screen->is_format_supported = svga_is_format_supported;
 394    screen->context_create = svga_context_create;
 395    screen->fence_reference = svga_fence_reference;
 396    screen->fence_signalled = svga_fence_signalled;
 397    screen->fence_finish = svga_fence_finish;
 398    svgascreen->sws = sws;
 399
 400    svga_screen_init_texture_functions(screen);
 401    svga_screen_init_buffer_functions(screen);
 402
 403    svgascreen->use_ps30 =
 404       sws->get_cap(sws, SVGA3D_DEVCAP_FRAGMENT_SHADER_VERSION, &result) &&
 405       result.u >= SVGA3DPSVERSION_30 ? TRUE : FALSE;
 406
 407    svgascreen->use_vs30 =
 408       sws->get_cap(sws, SVGA3D_DEVCAP_VERTEX_SHADER_VERSION, &result) &&
 409       result.u >= SVGA3DVSVERSION_30 ? TRUE : FALSE;
 410
 411 #if 1
 412    /* Shader model 2.0 is unsupported at the moment. */
 413    if(!svgascreen->use_ps30 || !svgascreen->use_vs30)
 414       goto error2;
 415 #else
 416    if(debug_get_bool_option("SVGA_NO_SM30", FALSE))
 417       svgascreen->use_vs30 = svgascreen->use_ps30 = FALSE;
 418 #endif
 419
 420    svgascreen->swc = sws->context_create(sws);
 421    if(!svgascreen->swc)
 422       goto error2;
 423
 424    pipe_mutex_init(svgascreen->tex_mutex);
 425    pipe_mutex_init(svgascreen->swc_mutex);
 426
 427    svga_screen_cache_init(svgascreen);
 428
 429    return screen;
 430 error2:
 431    FREE(svgascreen);
 432 error1:
 433    return NULL;
 434 }
 435
 436 void svga_screen_flush( struct svga_screen *svgascreen,
 437                         struct pipe_fence_handle **pfence )
 438 {
 439    struct pipe_fence_handle *fence = NULL;
 440
 441    SVGA_DBG(DEBUG_PERF, "%s\n", __FUNCTION__);
 442
 443    pipe_mutex_lock(svgascreen->swc_mutex);
 444    svgascreen->swc->flush(svgascreen->swc, &fence);
 445    pipe_mutex_unlock(svgascreen->swc_mutex);
 446
 447    svga_screen_cache_flush(svgascreen, fence);
 448
 449    if(pfence)
 450       *pfence = fence;
 451    else
 452       svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
 453 }
 454
 455 struct svga_winsys_screen *
 456 svga_winsys_screen(struct pipe_screen *screen)
 457 {
 458    return svga_screen(screen)->sws;
 459 }
 460
 461 #ifdef DEBUG
 462 struct svga_screen *
 463 svga_screen(struct pipe_screen *screen)
 464 {
 465    assert(screen);
 466    assert(screen->destroy == svga_destroy_screen);
 467    return (struct svga_screen *)screen;
 468 }
 469 #endif