src/gallium/state_trackers/dri/dri_screen.c

   1 /**************************************************************************
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   3  * Copyright 2009, VMware, Inc.
   4  * All Rights Reserved.
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   7  * copy of this software and associated documentation files (the
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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  26  **************************************************************************/
  27 /*
  28  * Author: Keith Whitwell <keithw@vmware.com>
  29  * Author: Jakob Bornecrantz <wallbraker@gmail.com>
  30  */
  31
  32 #include "utils.h"
  33
  34 #include "dri_screen.h"
  35 #include "dri_context.h"
  36 #include "dri_helpers.h"
  37
  38 #include "util/u_inlines.h"
  39 #include "pipe/p_screen.h"
  40 #include "pipe/p_format.h"
  41 #include "pipe-loader/pipe_loader.h"
  42 #include "state_tracker/st_gl_api.h" /* for st_gl_api_create */
  43 #include "state_tracker/drm_driver.h"
  44
  45 #include "util/u_debug.h"
  46 #include "util/format/u_format_s3tc.h"
  47
  48 #define MSAA_VISUAL_MAX_SAMPLES 32
  49
  50 #undef false
  51
  52 const __DRIconfigOptionsExtension gallium_config_options = {
  53    .base = { __DRI_CONFIG_OPTIONS, 2 },
  54    .xml = gallium_driinfo_xml,
  55    .getXml = pipe_loader_get_driinfo_xml
  56 };
  57
  58 #define false 0
  59
  60 static void
  61 dri_fill_st_options(struct dri_screen *screen)
  62 {
  63    struct st_config_options *options = &screen->options;
  64    const struct driOptionCache *optionCache = &screen->dev->option_cache;
  65
  66    options->disable_blend_func_extended =
  67       driQueryOptionb(optionCache, "disable_blend_func_extended");
  68    options->disable_arb_gpu_shader5 =
  69       driQueryOptionb(optionCache, "disable_arb_gpu_shader5");
  70    options->disable_glsl_line_continuations =
  71       driQueryOptionb(optionCache, "disable_glsl_line_continuations");
  72    options->force_glsl_extensions_warn =
  73       driQueryOptionb(optionCache, "force_glsl_extensions_warn");
  74    options->force_glsl_version =
  75       driQueryOptioni(optionCache, "force_glsl_version");
  76    options->allow_glsl_extension_directive_midshader =
  77       driQueryOptionb(optionCache, "allow_glsl_extension_directive_midshader");
  78    options->allow_glsl_builtin_const_expression =
  79       driQueryOptionb(optionCache, "allow_glsl_builtin_const_expression");
  80    options->allow_glsl_relaxed_es =
  81       driQueryOptionb(optionCache, "allow_glsl_relaxed_es");
  82    options->allow_glsl_builtin_variable_redeclaration =
  83       driQueryOptionb(optionCache, "allow_glsl_builtin_variable_redeclaration");
  84    options->allow_higher_compat_version =
  85       driQueryOptionb(optionCache, "allow_higher_compat_version");
  86    options->glsl_zero_init = driQueryOptionb(optionCache, "glsl_zero_init");
  87    options->vs_position_always_invariant =
  88       driQueryOptionb(optionCache, "vs_position_always_invariant");
  89    options->force_glsl_abs_sqrt =
  90       driQueryOptionb(optionCache, "force_glsl_abs_sqrt");
  91    options->allow_glsl_cross_stage_interpolation_mismatch =
  92       driQueryOptionb(optionCache, "allow_glsl_cross_stage_interpolation_mismatch");
  93    options->allow_glsl_layout_qualifier_on_function_parameters =
  94       driQueryOptionb(optionCache, "allow_glsl_layout_qualifier_on_function_parameters");
  95
  96    char *vendor_str = driQueryOptionstr(optionCache, "force_gl_vendor");
  97    /* not an empty string */
  98    if (*vendor_str)
  99       options->force_gl_vendor = strdup(vendor_str);
 100
 101    driComputeOptionsSha1(optionCache, options->config_options_sha1);
 102 }
 103
 104 static unsigned
 105 dri_loader_get_cap(struct dri_screen *screen, enum dri_loader_cap cap)
 106 {
 107    const __DRIdri2LoaderExtension *dri2_loader = screen->sPriv->dri2.loader;
 108    const __DRIimageLoaderExtension *image_loader = screen->sPriv->image.loader;
 109
 110    if (dri2_loader && dri2_loader->base.version >= 4 &&
 111        dri2_loader->getCapability)
 112       return dri2_loader->getCapability(screen->sPriv->loaderPrivate, cap);
 113
 114    if (image_loader && image_loader->base.version >= 2 &&
 115        image_loader->getCapability)
 116       return image_loader->getCapability(screen->sPriv->loaderPrivate, cap);
 117
 118    return 0;
 119 }
 120
 121 static const __DRIconfig **
 122 dri_fill_in_modes(struct dri_screen *screen)
 123 {
 124    static const mesa_format mesa_formats[] = {
 125       MESA_FORMAT_B10G10R10A2_UNORM,
 126       MESA_FORMAT_B10G10R10X2_UNORM,
 127       MESA_FORMAT_R10G10B10A2_UNORM,
 128       MESA_FORMAT_R10G10B10X2_UNORM,
 129       MESA_FORMAT_B8G8R8A8_UNORM,
 130       MESA_FORMAT_B8G8R8X8_UNORM,
 131       MESA_FORMAT_B8G8R8A8_SRGB,
 132       MESA_FORMAT_B8G8R8X8_SRGB,
 133       MESA_FORMAT_B5G6R5_UNORM,
 134       MESA_FORMAT_RGBA_FLOAT16,
 135       MESA_FORMAT_RGBX_FLOAT16,
 136
 137       /* The 32-bit RGBA format must not precede the 32-bit BGRA format.
 138        * Likewise for RGBX and BGRX.  Otherwise, the GLX client and the GLX
 139        * server may disagree on which format the GLXFBConfig represents,
 140        * resulting in swapped color channels.
 141        *
 142        * The problem, as of 2017-05-30:
 143        * When matching a GLXFBConfig to a __DRIconfig, GLX ignores the channel
 144        * order and chooses the first __DRIconfig with the expected channel
 145        * sizes. Specifically, GLX compares the GLXFBConfig's and __DRIconfig's
 146        * __DRI_ATTRIB_{CHANNEL}_SIZE but ignores __DRI_ATTRIB_{CHANNEL}_MASK.
 147        *
 148        * EGL does not suffer from this problem. It correctly compares the
 149        * channel masks when matching EGLConfig to __DRIconfig.
 150        */
 151
 152       /* Required by Android, for HAL_PIXEL_FORMAT_RGBA_8888. */
 153       MESA_FORMAT_R8G8B8A8_UNORM,
 154
 155       /* Required by Android, for HAL_PIXEL_FORMAT_RGBX_8888. */
 156       MESA_FORMAT_R8G8B8X8_UNORM,
 157    };
 158    static const enum pipe_format pipe_formats[] = {
 159       PIPE_FORMAT_B10G10R10A2_UNORM,
 160       PIPE_FORMAT_B10G10R10X2_UNORM,
 161       PIPE_FORMAT_R10G10B10A2_UNORM,
 162       PIPE_FORMAT_R10G10B10X2_UNORM,
 163       PIPE_FORMAT_BGRA8888_UNORM,
 164       PIPE_FORMAT_BGRX8888_UNORM,
 165       PIPE_FORMAT_BGRA8888_SRGB,
 166       PIPE_FORMAT_BGRX8888_SRGB,
 167       PIPE_FORMAT_B5G6R5_UNORM,
 168       PIPE_FORMAT_R16G16B16A16_FLOAT,
 169       PIPE_FORMAT_R16G16B16X16_FLOAT,
 170       PIPE_FORMAT_RGBA8888_UNORM,
 171       PIPE_FORMAT_RGBX8888_UNORM,
 172    };
 173    mesa_format format;
 174    __DRIconfig **configs = NULL;
 175    uint8_t depth_bits_array[5];
 176    uint8_t stencil_bits_array[5];
 177    unsigned depth_buffer_factor;
 178    unsigned msaa_samples_max;
 179    unsigned i;
 180    struct pipe_screen *p_screen = screen->base.screen;
 181    bool pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
 182    bool mixed_color_depth;
 183    bool allow_rgba_ordering;
 184    bool allow_rgb10;
 185    bool allow_fp16;
 186
 187    static const GLenum back_buffer_modes[] = {
 188       __DRI_ATTRIB_SWAP_NONE, __DRI_ATTRIB_SWAP_UNDEFINED,
 189       __DRI_ATTRIB_SWAP_COPY
 190    };
 191
 192    if (driQueryOptionb(&screen->dev->option_cache, "always_have_depth_buffer")) {
 193       /* all visuals will have a depth buffer */
 194       depth_buffer_factor = 0;
 195    }
 196    else {
 197       depth_bits_array[0] = 0;
 198       stencil_bits_array[0] = 0;
 199       depth_buffer_factor = 1;
 200    }
 201
 202    allow_rgba_ordering = dri_loader_get_cap(screen, DRI_LOADER_CAP_RGBA_ORDERING);
 203    allow_rgb10 = driQueryOptionb(&screen->dev->option_cache, "allow_rgb10_configs");
 204    allow_fp16 = driQueryOptionb(&screen->dev->option_cache, "allow_fp16_configs");
 205    allow_fp16 &= dri_loader_get_cap(screen, DRI_LOADER_CAP_FP16);
 206
 207    msaa_samples_max = (screen->st_api->feature_mask & ST_API_FEATURE_MS_VISUALS_MASK)
 208       ? MSAA_VISUAL_MAX_SAMPLES : 1;
 209
 210    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
 211                                             PIPE_TEXTURE_2D, 0, 0,
 212                                             PIPE_BIND_DEPTH_STENCIL);
 213    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
 214                                             PIPE_TEXTURE_2D, 0, 0,
 215                                             PIPE_BIND_DEPTH_STENCIL);
 216    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_UINT,
 217                                             PIPE_TEXTURE_2D, 0, 0,
 218                                             PIPE_BIND_DEPTH_STENCIL);
 219    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_UINT_Z24_UNORM,
 220                                             PIPE_TEXTURE_2D, 0, 0,
 221                                             PIPE_BIND_DEPTH_STENCIL);
 222    pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 223                                           PIPE_TEXTURE_2D, 0, 0,
 224                                           PIPE_BIND_DEPTH_STENCIL);
 225    pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 226                                           PIPE_TEXTURE_2D, 0, 0,
 227                                           PIPE_BIND_DEPTH_STENCIL);
 228
 229    if (pf_z16) {
 230       depth_bits_array[depth_buffer_factor] = 16;
 231       stencil_bits_array[depth_buffer_factor++] = 0;
 232    }
 233    if (pf_x8z24 || pf_z24x8) {
 234       depth_bits_array[depth_buffer_factor] = 24;
 235       stencil_bits_array[depth_buffer_factor++] = 0;
 236       screen->d_depth_bits_last = pf_x8z24;
 237    }
 238    if (pf_s8z24 || pf_z24s8) {
 239       depth_bits_array[depth_buffer_factor] = 24;
 240       stencil_bits_array[depth_buffer_factor++] = 8;
 241       screen->sd_depth_bits_last = pf_s8z24;
 242    }
 243    if (pf_z32) {
 244       depth_bits_array[depth_buffer_factor] = 32;
 245       stencil_bits_array[depth_buffer_factor++] = 0;
 246    }
 247
 248    mixed_color_depth =
 249       p_screen->get_param(p_screen, PIPE_CAP_MIXED_COLOR_DEPTH_BITS);
 250
 251    assert(ARRAY_SIZE(mesa_formats) == ARRAY_SIZE(pipe_formats));
 252
 253    /* Add configs. */
 254    for (format = 0; format < ARRAY_SIZE(mesa_formats); format++) {
 255       __DRIconfig **new_configs = NULL;
 256       unsigned num_msaa_modes = 0; /* includes a single-sample mode */
 257       uint8_t msaa_modes[MSAA_VISUAL_MAX_SAMPLES];
 258
 259       /* Expose only BGRA ordering if the loader doesn't support RGBA ordering. */
 260       if (!allow_rgba_ordering &&
 261           (mesa_formats[format] == MESA_FORMAT_R8G8B8A8_UNORM ||
 262            mesa_formats[format] == MESA_FORMAT_R8G8B8X8_UNORM))
 263          continue;
 264
 265       if (!allow_rgb10 &&
 266           (mesa_formats[format] == MESA_FORMAT_B10G10R10A2_UNORM ||
 267            mesa_formats[format] == MESA_FORMAT_B10G10R10X2_UNORM ||
 268            mesa_formats[format] == MESA_FORMAT_R10G10B10A2_UNORM ||
 269            mesa_formats[format] == MESA_FORMAT_R10G10B10X2_UNORM))
 270          continue;
 271
 272       if (!allow_fp16 &&
 273           (mesa_formats[format] == MESA_FORMAT_RGBA_FLOAT16 ||
 274            mesa_formats[format] == MESA_FORMAT_RGBX_FLOAT16))
 275          continue;
 276
 277       if (!p_screen->is_format_supported(p_screen, pipe_formats[format],
 278                                          PIPE_TEXTURE_2D, 0, 0,
 279                                          PIPE_BIND_RENDER_TARGET |
 280                                          PIPE_BIND_DISPLAY_TARGET))
 281          continue;
 282
 283       for (i = 1; i <= msaa_samples_max; i++) {
 284          int samples = i > 1 ? i : 0;
 285
 286          if (p_screen->is_format_supported(p_screen, pipe_formats[format],
 287                                            PIPE_TEXTURE_2D, samples, samples,
 288                                            PIPE_BIND_RENDER_TARGET)) {
 289             msaa_modes[num_msaa_modes++] = samples;
 290          }
 291       }
 292
 293       if (num_msaa_modes) {
 294          /* Single-sample configs with an accumulation buffer. */
 295          new_configs = driCreateConfigs(mesa_formats[format],
 296                                         depth_bits_array, stencil_bits_array,
 297                                         depth_buffer_factor, back_buffer_modes,
 298                                         ARRAY_SIZE(back_buffer_modes),
 299                                         msaa_modes, 1,
 300                                         GL_TRUE, !mixed_color_depth, GL_FALSE);
 301          configs = driConcatConfigs(configs, new_configs);
 302
 303          /* Multi-sample configs without an accumulation buffer. */
 304          if (num_msaa_modes > 1) {
 305             new_configs = driCreateConfigs(mesa_formats[format],
 306                                            depth_bits_array, stencil_bits_array,
 307                                            depth_buffer_factor, back_buffer_modes,
 308                                            ARRAY_SIZE(back_buffer_modes),
 309                                            msaa_modes+1, num_msaa_modes-1,
 310                                            GL_FALSE, !mixed_color_depth, GL_FALSE);
 311             configs = driConcatConfigs(configs, new_configs);
 312          }
 313       }
 314    }
 315
 316    if (configs == NULL) {
 317       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 318       return NULL;
 319    }
 320
 321    return (const __DRIconfig **)configs;
 322 }
 323
 324 /**
 325  * Roughly the converse of dri_fill_in_modes.
 326  */
 327 void
 328 dri_fill_st_visual(struct st_visual *stvis,
 329                    const struct dri_screen *screen,
 330                    const struct gl_config *mode)
 331 {
 332    memset(stvis, 0, sizeof(*stvis));
 333
 334    if (!mode) {
 335       stvis->no_config = true;
 336       return;
 337    }
 338
 339    /* Deduce the color format. */
 340    switch (mode->redMask) {
 341    case 0:
 342       /* Formats > 32 bpp */
 343       assert(mode->floatMode);
 344       if (mode->alphaShift > -1) {
 345          assert(mode->alphaShift == 48);
 346          stvis->color_format = PIPE_FORMAT_R16G16B16A16_FLOAT;
 347       } else {
 348          stvis->color_format = PIPE_FORMAT_R16G16B16X16_FLOAT;
 349       }
 350       break;
 351
 352    case 0x3FF00000:
 353       if (mode->alphaMask) {
 354          assert(mode->alphaMask == 0xC0000000);
 355          stvis->color_format = PIPE_FORMAT_B10G10R10A2_UNORM;
 356       } else {
 357          stvis->color_format = PIPE_FORMAT_B10G10R10X2_UNORM;
 358       }
 359       break;
 360
 361    case 0x000003FF:
 362       if (mode->alphaMask) {
 363          assert(mode->alphaMask == 0xC0000000);
 364          stvis->color_format = PIPE_FORMAT_R10G10B10A2_UNORM;
 365       } else {
 366          stvis->color_format = PIPE_FORMAT_R10G10B10X2_UNORM;
 367       }
 368       break;
 369
 370    case 0x00FF0000:
 371       if (mode->alphaMask) {
 372          assert(mode->alphaMask == 0xFF000000);
 373          stvis->color_format = mode->sRGBCapable ?
 374                                   PIPE_FORMAT_BGRA8888_SRGB :
 375                                   PIPE_FORMAT_BGRA8888_UNORM;
 376       } else {
 377          stvis->color_format = mode->sRGBCapable ?
 378                                   PIPE_FORMAT_BGRX8888_SRGB :
 379                                   PIPE_FORMAT_BGRX8888_UNORM;
 380       }
 381       break;
 382
 383    case 0x000000FF:
 384       if (mode->alphaMask) {
 385          assert(mode->alphaMask == 0xFF000000);
 386          stvis->color_format = mode->sRGBCapable ?
 387                                   PIPE_FORMAT_RGBA8888_SRGB :
 388                                   PIPE_FORMAT_RGBA8888_UNORM;
 389       } else {
 390          stvis->color_format = mode->sRGBCapable ?
 391                                   PIPE_FORMAT_RGBX8888_SRGB :
 392                                   PIPE_FORMAT_RGBX8888_UNORM;
 393       }
 394       break;
 395
 396    case 0x0000F800:
 397       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 398       break;
 399
 400    default:
 401       assert(!"unsupported visual: invalid red mask");
 402       return;
 403    }
 404
 405    if (mode->sampleBuffers) {
 406       stvis->samples = mode->samples;
 407    }
 408
 409    switch (mode->depthBits) {
 410    default:
 411    case 0:
 412       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 413       break;
 414    case 16:
 415       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 416       break;
 417    case 24:
 418       if (mode->stencilBits == 0) {
 419          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 420                                           PIPE_FORMAT_Z24X8_UNORM:
 421                                           PIPE_FORMAT_X8Z24_UNORM;
 422       } else {
 423          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 424                                           PIPE_FORMAT_Z24_UNORM_S8_UINT:
 425                                           PIPE_FORMAT_S8_UINT_Z24_UNORM;
 426       }
 427       break;
 428    case 32:
 429       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 430       break;
 431    }
 432
 433    stvis->accum_format = (mode->accumRedBits > 0) ?
 434       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 435
 436    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 437    stvis->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
 438    if (mode->doubleBufferMode) {
 439       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 440       stvis->render_buffer = ST_ATTACHMENT_BACK_LEFT;
 441    }
 442    if (mode->stereoMode) {
 443       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 444       if (mode->doubleBufferMode)
 445          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 446    }
 447
 448    if (mode->depthBits > 0 || mode->stencilBits > 0)
 449       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 450    /* let the state tracker allocate the accum buffer */
 451 }
 452
 453 static bool
 454 dri_get_egl_image(struct st_manager *smapi,
 455                   void *egl_image,
 456                   struct st_egl_image *stimg)
 457 {
 458    struct dri_screen *screen = (struct dri_screen *)smapi;
 459    __DRIimage *img = NULL;
 460    const struct dri2_format_mapping *map;
 461
 462    if (screen->lookup_egl_image) {
 463       img = screen->lookup_egl_image(screen, egl_image);
 464    }
 465
 466    if (!img)
 467       return FALSE;
 468
 469    stimg->texture = NULL;
 470    pipe_resource_reference(&stimg->texture, img->texture);
 471    map = dri2_get_mapping_by_fourcc(img->dri_fourcc);
 472    stimg->format = map ? map->pipe_format : img->texture->format;
 473    stimg->level = img->level;
 474    stimg->layer = img->layer;
 475
 476    return TRUE;
 477 }
 478
 479 static int
 480 dri_get_param(struct st_manager *smapi,
 481               enum st_manager_param param)
 482 {
 483    struct dri_screen *screen = (struct dri_screen *)smapi;
 484
 485    switch(param) {
 486    case ST_MANAGER_BROKEN_INVALIDATE:
 487       return screen->broken_invalidate;
 488    default:
 489       return 0;
 490    }
 491 }
 492
 493 void
 494 dri_destroy_screen_helper(struct dri_screen * screen)
 495 {
 496    if (screen->base.destroy)
 497       screen->base.destroy(&screen->base);
 498
 499    if (screen->st_api && screen->st_api->destroy)
 500       screen->st_api->destroy(screen->st_api);
 501
 502    if (screen->base.screen)
 503       screen->base.screen->destroy(screen->base.screen);
 504
 505    mtx_destroy(&screen->opencl_func_mutex);
 506 }
 507
 508 void
 509 dri_destroy_screen(__DRIscreen * sPriv)
 510 {
 511    struct dri_screen *screen = dri_screen(sPriv);
 512
 513    dri_destroy_screen_helper(screen);
 514
 515    pipe_loader_release(&screen->dev, 1);
 516
 517    free(screen->options.force_gl_vendor);
 518
 519    /* The caller in dri_util preserves the fd ownership */
 520    free(screen);
 521    sPriv->driverPrivate = NULL;
 522    sPriv->extensions = NULL;
 523 }
 524
 525 static void
 526 dri_postprocessing_init(struct dri_screen *screen)
 527 {
 528    unsigned i;
 529
 530    for (i = 0; i < PP_FILTERS; i++) {
 531       screen->pp_enabled[i] = driQueryOptioni(&screen->dev->option_cache,
 532                                               pp_filters[i].name);
 533    }
 534 }
 535
 536 static void
 537 dri_set_background_context(struct st_context_iface *st,
 538                            struct util_queue_monitoring *queue_info)
 539 {
 540    struct dri_context *ctx = (struct dri_context *)st->st_manager_private;
 541    const __DRIbackgroundCallableExtension *backgroundCallable =
 542       ctx->sPriv->dri2.backgroundCallable;
 543
 544    /* Note: Mesa will only call this function if GL multithreading is enabled
 545     * We only do that if the loader exposed the __DRI_BACKGROUND_CALLABLE
 546     * extension. So we know that backgroundCallable is not NULL.
 547     */
 548    assert(backgroundCallable);
 549    backgroundCallable->setBackgroundContext(ctx->cPriv->loaderPrivate);
 550
 551    if (ctx->hud)
 552       hud_add_queue_for_monitoring(ctx->hud, queue_info);
 553 }
 554
 555 void
 556 dri_init_options(struct dri_screen *screen)
 557 {
 558    pipe_loader_load_options(screen->dev);
 559
 560    dri_fill_st_options(screen);
 561 }
 562
 563 const __DRIconfig **
 564 dri_init_screen_helper(struct dri_screen *screen,
 565                        struct pipe_screen *pscreen)
 566 {
 567    screen->base.screen = pscreen;
 568    screen->base.get_egl_image = dri_get_egl_image;
 569    screen->base.get_param = dri_get_param;
 570    screen->base.set_background_context = dri_set_background_context;
 571
 572    screen->st_api = st_gl_api_create();
 573    if (!screen->st_api)
 574       return NULL;
 575
 576    if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
 577       screen->target = PIPE_TEXTURE_2D;
 578    else
 579       screen->target = PIPE_TEXTURE_RECT;
 580
 581    dri_postprocessing_init(screen);
 582
 583    screen->st_api->query_versions(screen->st_api, &screen->base,
 584                                   &screen->options,
 585                                   &screen->sPriv->max_gl_core_version,
 586                                   &screen->sPriv->max_gl_compat_version,
 587                                   &screen->sPriv->max_gl_es1_version,
 588                                   &screen->sPriv->max_gl_es2_version);
 589
 590    return dri_fill_in_modes(screen);
 591 }
 592
 593 /* vim: set sw=3 ts=8 sts=3 expandtab: */