src/gallium/state_trackers/dri/dri_screen.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009, VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  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
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  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
  37 #include "util/u_inlines.h"
  38 #include "pipe/p_screen.h"
  39 #include "pipe/p_format.h"
  40 #include "pipe-loader/pipe_loader.h"
  41 #include "state_tracker/st_gl_api.h" /* for st_gl_api_create */
  42 #include "state_tracker/drm_driver.h"
  43
  44 #include "util/u_debug.h"
  45 #include "util/u_format_s3tc.h"
  46
  47 #define MSAA_VISUAL_MAX_SAMPLES 32
  48
  49 #undef false
  50
  51 const __DRIconfigOptionsExtension gallium_config_options = {
  52    .base = { __DRI_CONFIG_OPTIONS, 1 },
  53    .xml = gallium_driinfo_xml
  54 };
  55
  56 #define false 0
  57
  58 static void
  59 dri_fill_st_options(struct dri_screen *screen)
  60 {
  61    struct st_config_options *options = &screen->options;
  62    const struct driOptionCache *optionCache = &screen->optionCache;
  63
  64    options->disable_blend_func_extended =
  65       driQueryOptionb(optionCache, "disable_blend_func_extended");
  66    options->disable_glsl_line_continuations =
  67       driQueryOptionb(optionCache, "disable_glsl_line_continuations");
  68    options->disable_shader_bit_encoding =
  69       driQueryOptionb(optionCache, "disable_shader_bit_encoding");
  70    options->force_glsl_extensions_warn =
  71       driQueryOptionb(optionCache, "force_glsl_extensions_warn");
  72    options->force_glsl_version =
  73       driQueryOptioni(optionCache, "force_glsl_version");
  74    options->force_s3tc_enable =
  75       driQueryOptionb(optionCache, "force_s3tc_enable");
  76    options->allow_glsl_extension_directive_midshader =
  77       driQueryOptionb(optionCache, "allow_glsl_extension_directive_midshader");
  78    options->allow_glsl_builtin_variable_redeclaration =
  79       driQueryOptionb(optionCache, "allow_glsl_builtin_variable_redeclaration");
  80    options->allow_higher_compat_version =
  81       driQueryOptionb(optionCache, "allow_higher_compat_version");
  82    options->glsl_zero_init = driQueryOptionb(optionCache, "glsl_zero_init");
  83    options->force_glsl_abs_sqrt =
  84       driQueryOptionb(optionCache, "force_glsl_abs_sqrt");
  85
  86    driComputeOptionsSha1(optionCache, options->config_options_sha1);
  87 }
  88
  89 static unsigned
  90 dri_loader_get_cap(struct dri_screen *screen, enum dri_loader_cap cap)
  91 {
  92    const __DRIdri2LoaderExtension *dri2_loader = screen->sPriv->dri2.loader;
  93    const __DRIimageLoaderExtension *image_loader = screen->sPriv->image.loader;
  94
  95    if (dri2_loader && dri2_loader->base.version >= 4)
  96       return dri2_loader->getCapability(screen->sPriv->loaderPrivate, cap);
  97
  98    if (image_loader && image_loader->base.version >= 2)
  99       return image_loader->getCapability(screen->sPriv->loaderPrivate, cap);
 100
 101    return 0;
 102 }
 103
 104 static const __DRIconfig **
 105 dri_fill_in_modes(struct dri_screen *screen)
 106 {
 107    static const mesa_format mesa_formats[] = {
 108       MESA_FORMAT_B8G8R8A8_UNORM,
 109       MESA_FORMAT_B8G8R8X8_UNORM,
 110       MESA_FORMAT_B8G8R8A8_SRGB,
 111       MESA_FORMAT_B8G8R8X8_SRGB,
 112       MESA_FORMAT_B5G6R5_UNORM,
 113
 114       /* The 32-bit RGBA format must not precede the 32-bit BGRA format.
 115        * Likewise for RGBX and BGRX.  Otherwise, the GLX client and the GLX
 116        * server may disagree on which format the GLXFBConfig represents,
 117        * resulting in swapped color channels.
 118        *
 119        * The problem, as of 2017-05-30:
 120        * When matching a GLXFBConfig to a __DRIconfig, GLX ignores the channel
 121        * order and chooses the first __DRIconfig with the expected channel
 122        * sizes. Specifically, GLX compares the GLXFBConfig's and __DRIconfig's
 123        * __DRI_ATTRIB_{CHANNEL}_SIZE but ignores __DRI_ATTRIB_{CHANNEL}_MASK.
 124        *
 125        * EGL does not suffer from this problem. It correctly compares the
 126        * channel masks when matching EGLConfig to __DRIconfig.
 127        */
 128
 129       /* Required by Android, for HAL_PIXEL_FORMAT_RGBA_8888. */
 130       MESA_FORMAT_R8G8B8A8_UNORM,
 131
 132       /* Required by Android, for HAL_PIXEL_FORMAT_RGBX_8888. */
 133       MESA_FORMAT_R8G8B8X8_UNORM,
 134    };
 135    static const enum pipe_format pipe_formats[] = {
 136       PIPE_FORMAT_BGRA8888_UNORM,
 137       PIPE_FORMAT_BGRX8888_UNORM,
 138       PIPE_FORMAT_BGRA8888_SRGB,
 139       PIPE_FORMAT_BGRX8888_SRGB,
 140       PIPE_FORMAT_B5G6R5_UNORM,
 141       PIPE_FORMAT_RGBA8888_UNORM,
 142       PIPE_FORMAT_RGBX8888_UNORM,
 143    };
 144    mesa_format format;
 145    __DRIconfig **configs = NULL;
 146    uint8_t depth_bits_array[5];
 147    uint8_t stencil_bits_array[5];
 148    unsigned depth_buffer_factor;
 149    unsigned msaa_samples_max;
 150    unsigned i;
 151    struct pipe_screen *p_screen = screen->base.screen;
 152    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
 153    boolean mixed_color_depth;
 154
 155    static const GLenum back_buffer_modes[] = {
 156       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
 157    };
 158
 159    if (driQueryOptionb(&screen->optionCache, "always_have_depth_buffer")) {
 160       /* all visuals will have a depth buffer */
 161       depth_buffer_factor = 0;
 162    }
 163    else {
 164       depth_bits_array[0] = 0;
 165       stencil_bits_array[0] = 0;
 166       depth_buffer_factor = 1;
 167    }
 168
 169    msaa_samples_max = (screen->st_api->feature_mask & ST_API_FEATURE_MS_VISUALS_MASK)
 170       ? MSAA_VISUAL_MAX_SAMPLES : 1;
 171
 172    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
 173                                             PIPE_TEXTURE_2D, 0,
 174                                             PIPE_BIND_DEPTH_STENCIL);
 175    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
 176                                             PIPE_TEXTURE_2D, 0,
 177                                             PIPE_BIND_DEPTH_STENCIL);
 178    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_UINT,
 179                                             PIPE_TEXTURE_2D, 0,
 180                                             PIPE_BIND_DEPTH_STENCIL);
 181    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_UINT_Z24_UNORM,
 182                                             PIPE_TEXTURE_2D, 0,
 183                                             PIPE_BIND_DEPTH_STENCIL);
 184    pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 185                                           PIPE_TEXTURE_2D, 0,
 186                                           PIPE_BIND_DEPTH_STENCIL);
 187    pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 188                                           PIPE_TEXTURE_2D, 0,
 189                                           PIPE_BIND_DEPTH_STENCIL);
 190
 191    if (pf_z16) {
 192       depth_bits_array[depth_buffer_factor] = 16;
 193       stencil_bits_array[depth_buffer_factor++] = 0;
 194    }
 195    if (pf_x8z24 || pf_z24x8) {
 196       depth_bits_array[depth_buffer_factor] = 24;
 197       stencil_bits_array[depth_buffer_factor++] = 0;
 198       screen->d_depth_bits_last = pf_x8z24;
 199    }
 200    if (pf_s8z24 || pf_z24s8) {
 201       depth_bits_array[depth_buffer_factor] = 24;
 202       stencil_bits_array[depth_buffer_factor++] = 8;
 203       screen->sd_depth_bits_last = pf_s8z24;
 204    }
 205    if (pf_z32) {
 206       depth_bits_array[depth_buffer_factor] = 32;
 207       stencil_bits_array[depth_buffer_factor++] = 0;
 208    }
 209
 210    mixed_color_depth =
 211       p_screen->get_param(p_screen, PIPE_CAP_MIXED_COLOR_DEPTH_BITS);
 212
 213    assert(ARRAY_SIZE(mesa_formats) == ARRAY_SIZE(pipe_formats));
 214
 215    /* Expose only BGRA ordering if the loader doesn't support RGBA ordering. */
 216    unsigned num_formats;
 217    if (dri_loader_get_cap(screen, DRI_LOADER_CAP_RGBA_ORDERING))
 218       num_formats = ARRAY_SIZE(mesa_formats);
 219    else
 220       num_formats = 5;
 221
 222    /* Add configs. */
 223    for (format = 0; format < num_formats; format++) {
 224       __DRIconfig **new_configs = NULL;
 225       unsigned num_msaa_modes = 0; /* includes a single-sample mode */
 226       uint8_t msaa_modes[MSAA_VISUAL_MAX_SAMPLES];
 227
 228       if (!p_screen->is_format_supported(p_screen, pipe_formats[format],
 229                                          PIPE_TEXTURE_2D, 0,
 230                                          PIPE_BIND_RENDER_TARGET))
 231          continue;
 232
 233       for (i = 1; i <= msaa_samples_max; i++) {
 234          int samples = i > 1 ? i : 0;
 235
 236          if (p_screen->is_format_supported(p_screen, pipe_formats[format],
 237                                            PIPE_TEXTURE_2D, samples,
 238                                            PIPE_BIND_RENDER_TARGET)) {
 239             msaa_modes[num_msaa_modes++] = samples;
 240          }
 241       }
 242
 243       if (num_msaa_modes) {
 244          /* Single-sample configs with an accumulation buffer. */
 245          new_configs = driCreateConfigs(mesa_formats[format],
 246                                         depth_bits_array, stencil_bits_array,
 247                                         depth_buffer_factor, back_buffer_modes,
 248                                         ARRAY_SIZE(back_buffer_modes),
 249                                         msaa_modes, 1,
 250                                         GL_TRUE, !mixed_color_depth);
 251          configs = driConcatConfigs(configs, new_configs);
 252
 253          /* Multi-sample configs without an accumulation buffer. */
 254          if (num_msaa_modes > 1) {
 255             new_configs = driCreateConfigs(mesa_formats[format],
 256                                            depth_bits_array, stencil_bits_array,
 257                                            depth_buffer_factor, back_buffer_modes,
 258                                            ARRAY_SIZE(back_buffer_modes),
 259                                            msaa_modes+1, num_msaa_modes-1,
 260                                            GL_FALSE, !mixed_color_depth);
 261             configs = driConcatConfigs(configs, new_configs);
 262          }
 263       }
 264    }
 265
 266    if (configs == NULL) {
 267       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 268       return NULL;
 269    }
 270
 271    return (const __DRIconfig **)configs;
 272 }
 273
 274 /**
 275  * Roughly the converse of dri_fill_in_modes.
 276  */
 277 void
 278 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 279                    const struct gl_config *mode)
 280 {
 281    memset(stvis, 0, sizeof(*stvis));
 282
 283    if (!mode)
 284       return;
 285
 286    /* Deduce the color format. */
 287    switch (mode->redMask) {
 288    case 0x00FF0000:
 289       if (mode->alphaMask) {
 290          assert(mode->alphaMask == 0xFF000000);
 291          stvis->color_format = mode->sRGBCapable ?
 292                                   PIPE_FORMAT_BGRA8888_SRGB :
 293                                   PIPE_FORMAT_BGRA8888_UNORM;
 294       } else {
 295          stvis->color_format = mode->sRGBCapable ?
 296                                   PIPE_FORMAT_BGRX8888_SRGB :
 297                                   PIPE_FORMAT_BGRX8888_UNORM;
 298       }
 299       break;
 300
 301    case 0x000000FF:
 302       if (mode->alphaMask) {
 303          assert(mode->alphaMask == 0xFF000000);
 304          stvis->color_format = mode->sRGBCapable ?
 305                                   PIPE_FORMAT_RGBA8888_SRGB :
 306                                   PIPE_FORMAT_RGBA8888_UNORM;
 307       } else {
 308          stvis->color_format = mode->sRGBCapable ?
 309                                   PIPE_FORMAT_RGBX8888_SRGB :
 310                                   PIPE_FORMAT_RGBX8888_UNORM;
 311       }
 312       break;
 313
 314    case 0x0000F800:
 315       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 316       break;
 317
 318    default:
 319       assert(!"unsupported visual: invalid red mask");
 320       return;
 321    }
 322
 323    if (mode->sampleBuffers) {
 324       stvis->samples = mode->samples;
 325    }
 326
 327    switch (mode->depthBits) {
 328    default:
 329    case 0:
 330       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 331       break;
 332    case 16:
 333       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 334       break;
 335    case 24:
 336       if (mode->stencilBits == 0) {
 337          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 338                                           PIPE_FORMAT_Z24X8_UNORM:
 339                                           PIPE_FORMAT_X8Z24_UNORM;
 340       } else {
 341          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 342                                           PIPE_FORMAT_Z24_UNORM_S8_UINT:
 343                                           PIPE_FORMAT_S8_UINT_Z24_UNORM;
 344       }
 345       break;
 346    case 32:
 347       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 348       break;
 349    }
 350
 351    stvis->accum_format = (mode->haveAccumBuffer) ?
 352       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 353
 354    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 355    stvis->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
 356    if (mode->doubleBufferMode) {
 357       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 358       stvis->render_buffer = ST_ATTACHMENT_BACK_LEFT;
 359    }
 360    if (mode->stereoMode) {
 361       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 362       if (mode->doubleBufferMode)
 363          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 364    }
 365
 366    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 367       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 368    /* let the state tracker allocate the accum buffer */
 369 }
 370
 371 static boolean
 372 dri_get_egl_image(struct st_manager *smapi,
 373                   void *egl_image,
 374                   struct st_egl_image *stimg)
 375 {
 376    struct dri_screen *screen = (struct dri_screen *)smapi;
 377    __DRIimage *img = NULL;
 378
 379    if (screen->lookup_egl_image) {
 380       img = screen->lookup_egl_image(screen, egl_image);
 381    }
 382
 383    if (!img)
 384       return FALSE;
 385
 386    stimg->texture = NULL;
 387    pipe_resource_reference(&stimg->texture, img->texture);
 388    switch (img->dri_components) {
 389    case __DRI_IMAGE_COMPONENTS_Y_U_V:
 390       stimg->format = PIPE_FORMAT_IYUV;
 391       break;
 392    case __DRI_IMAGE_COMPONENTS_Y_UV:
 393       stimg->format = PIPE_FORMAT_NV12;
 394       break;
 395    default:
 396       stimg->format = img->texture->format;
 397       break;
 398    }
 399    stimg->level = img->level;
 400    stimg->layer = img->layer;
 401
 402    return TRUE;
 403 }
 404
 405 static int
 406 dri_get_param(struct st_manager *smapi,
 407               enum st_manager_param param)
 408 {
 409    struct dri_screen *screen = (struct dri_screen *)smapi;
 410
 411    switch(param) {
 412    case ST_MANAGER_BROKEN_INVALIDATE:
 413       return screen->broken_invalidate;
 414    default:
 415       return 0;
 416    }
 417 }
 418
 419 static void
 420 dri_destroy_option_cache(struct dri_screen * screen)
 421 {
 422    int i;
 423
 424    if (screen->optionCache.info) {
 425       for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
 426          free(screen->optionCache.info[i].name);
 427          free(screen->optionCache.info[i].ranges);
 428       }
 429       free(screen->optionCache.info);
 430    }
 431
 432    free(screen->optionCache.values);
 433
 434    /* Default values are copied to screen->optionCache->values in
 435     * initOptionCache. The info field, however, is a pointer copy, so don't free
 436     * that twice.
 437     */
 438    free(screen->optionCacheDefaults.values);
 439 }
 440
 441 void
 442 dri_destroy_screen_helper(struct dri_screen * screen)
 443 {
 444    if (screen->base.destroy)
 445       screen->base.destroy(&screen->base);
 446
 447    if (screen->st_api && screen->st_api->destroy)
 448       screen->st_api->destroy(screen->st_api);
 449
 450    if (screen->base.screen)
 451       screen->base.screen->destroy(screen->base.screen);
 452
 453    dri_destroy_option_cache(screen);
 454    mtx_destroy(&screen->opencl_func_mutex);
 455 }
 456
 457 void
 458 dri_destroy_screen(__DRIscreen * sPriv)
 459 {
 460    struct dri_screen *screen = dri_screen(sPriv);
 461
 462    dri_destroy_screen_helper(screen);
 463
 464    pipe_loader_release(&screen->dev, 1);
 465
 466    free(screen);
 467    sPriv->driverPrivate = NULL;
 468    sPriv->extensions = NULL;
 469 }
 470
 471 static void
 472 dri_postprocessing_init(struct dri_screen *screen)
 473 {
 474    unsigned i;
 475
 476    for (i = 0; i < PP_FILTERS; i++) {
 477       screen->pp_enabled[i] = driQueryOptioni(&screen->optionCache,
 478                                               pp_filters[i].name);
 479    }
 480 }
 481
 482 static void
 483 dri_set_background_context(struct st_context_iface *st,
 484                            struct util_queue_monitoring *queue_info)
 485 {
 486    struct dri_context *ctx = (struct dri_context *)st->st_manager_private;
 487    const __DRIbackgroundCallableExtension *backgroundCallable =
 488       ctx->sPriv->dri2.backgroundCallable;
 489
 490    /* Note: Mesa will only call this function if GL multithreading is enabled
 491     * We only do that if the loader exposed the __DRI_BACKGROUND_CALLABLE
 492     * extension. So we know that backgroundCallable is not NULL.
 493     */
 494    assert(backgroundCallable);
 495    backgroundCallable->setBackgroundContext(ctx->cPriv->loaderPrivate);
 496
 497    if (ctx->hud)
 498       hud_add_queue_for_monitoring(ctx->hud, queue_info);
 499 }
 500
 501 unsigned
 502 dri_init_options_get_screen_flags(struct dri_screen *screen,
 503                                   const char* driver_name)
 504 {
 505    unsigned flags = 0;
 506
 507    driParseOptionInfo(&screen->optionCacheDefaults, gallium_config_options.xml);
 508    driParseConfigFiles(&screen->optionCache,
 509                        &screen->optionCacheDefaults,
 510                        screen->sPriv->myNum,
 511                        driver_name);
 512    dri_fill_st_options(screen);
 513
 514    if (driQueryOptionb(&screen->optionCache,
 515                        "glsl_correct_derivatives_after_discard"))
 516       flags |= PIPE_SCREEN_ENABLE_CORRECT_TGSI_DERIVATIVES_AFTER_KILL;
 517
 518    return flags;
 519 }
 520
 521 const __DRIconfig **
 522 dri_init_screen_helper(struct dri_screen *screen,
 523                        struct pipe_screen *pscreen)
 524 {
 525    screen->base.screen = pscreen;
 526    screen->base.get_egl_image = dri_get_egl_image;
 527    screen->base.get_param = dri_get_param;
 528    screen->base.set_background_context = dri_set_background_context;
 529
 530    screen->st_api = st_gl_api_create();
 531    if (!screen->st_api)
 532       return NULL;
 533
 534    if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
 535       screen->target = PIPE_TEXTURE_2D;
 536    else
 537       screen->target = PIPE_TEXTURE_RECT;
 538
 539    /* Handle force_s3tc_enable. */
 540    if (!util_format_s3tc_enabled && screen->options.force_s3tc_enable) {
 541       /* Ensure libtxc_dxtn has been loaded if available.
 542        * Forcing S3TC on before calling this would prevent loading
 543        * the library.
 544        * This is just a precaution, the driver should have called it
 545        * already.
 546        */
 547       util_format_s3tc_init();
 548
 549       util_format_s3tc_enabled = TRUE;
 550    }
 551
 552    dri_postprocessing_init(screen);
 553
 554    screen->st_api->query_versions(screen->st_api, &screen->base,
 555                                   &screen->options,
 556                                   &screen->sPriv->max_gl_core_version,
 557                                   &screen->sPriv->max_gl_compat_version,
 558                                   &screen->sPriv->max_gl_es1_version,
 559                                   &screen->sPriv->max_gl_es2_version);
 560
 561    return dri_fill_in_modes(screen);
 562 }
 563
 564 /* vim: set sw=3 ts=8 sts=3 expandtab: */