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