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    options->allow_glsl_cross_stage_interpolation_mismatch =
  85       driQueryOptionb(optionCache, "allow_glsl_cross_stage_interpolation_mismatch");
  86
  87    driComputeOptionsSha1(optionCache, options->config_options_sha1);
  88 }
  89
  90 static unsigned
  91 dri_loader_get_cap(struct dri_screen *screen, enum dri_loader_cap cap)
  92 {
  93    const __DRIdri2LoaderExtension *dri2_loader = screen->sPriv->dri2.loader;
  94    const __DRIimageLoaderExtension *image_loader = screen->sPriv->image.loader;
  95
  96    if (dri2_loader && dri2_loader->base.version >= 4 &&
  97        dri2_loader->getCapability)
  98       return dri2_loader->getCapability(screen->sPriv->loaderPrivate, cap);
  99
 100    if (image_loader && image_loader->base.version >= 2 &&
 101        image_loader->getCapability)
 102       return image_loader->getCapability(screen->sPriv->loaderPrivate, cap);
 103
 104    return 0;
 105 }
 106
 107 static const __DRIconfig **
 108 dri_fill_in_modes(struct dri_screen *screen)
 109 {
 110    static const mesa_format mesa_formats[] = {
 111       MESA_FORMAT_B8G8R8A8_UNORM,
 112       MESA_FORMAT_B8G8R8X8_UNORM,
 113       MESA_FORMAT_B8G8R8A8_SRGB,
 114       MESA_FORMAT_B8G8R8X8_SRGB,
 115       MESA_FORMAT_B5G6R5_UNORM,
 116
 117       /* The 32-bit RGBA format must not precede the 32-bit BGRA format.
 118        * Likewise for RGBX and BGRX.  Otherwise, the GLX client and the GLX
 119        * server may disagree on which format the GLXFBConfig represents,
 120        * resulting in swapped color channels.
 121        *
 122        * The problem, as of 2017-05-30:
 123        * When matching a GLXFBConfig to a __DRIconfig, GLX ignores the channel
 124        * order and chooses the first __DRIconfig with the expected channel
 125        * sizes. Specifically, GLX compares the GLXFBConfig's and __DRIconfig's
 126        * __DRI_ATTRIB_{CHANNEL}_SIZE but ignores __DRI_ATTRIB_{CHANNEL}_MASK.
 127        *
 128        * EGL does not suffer from this problem. It correctly compares the
 129        * channel masks when matching EGLConfig to __DRIconfig.
 130        */
 131
 132       /* Required by Android, for HAL_PIXEL_FORMAT_RGBA_8888. */
 133       MESA_FORMAT_R8G8B8A8_UNORM,
 134
 135       /* Required by Android, for HAL_PIXEL_FORMAT_RGBX_8888. */
 136       MESA_FORMAT_R8G8B8X8_UNORM,
 137    };
 138    static const enum pipe_format pipe_formats[] = {
 139       PIPE_FORMAT_BGRA8888_UNORM,
 140       PIPE_FORMAT_BGRX8888_UNORM,
 141       PIPE_FORMAT_BGRA8888_SRGB,
 142       PIPE_FORMAT_BGRX8888_SRGB,
 143       PIPE_FORMAT_B5G6R5_UNORM,
 144       PIPE_FORMAT_RGBA8888_UNORM,
 145       PIPE_FORMAT_RGBX8888_UNORM,
 146    };
 147    mesa_format format;
 148    __DRIconfig **configs = NULL;
 149    uint8_t depth_bits_array[5];
 150    uint8_t stencil_bits_array[5];
 151    unsigned depth_buffer_factor;
 152    unsigned msaa_samples_max;
 153    unsigned i;
 154    struct pipe_screen *p_screen = screen->base.screen;
 155    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
 156    boolean mixed_color_depth;
 157
 158    static const GLenum back_buffer_modes[] = {
 159       __DRI_ATTRIB_SWAP_NONE, __DRI_ATTRIB_SWAP_UNDEFINED,
 160       __DRI_ATTRIB_SWAP_COPY
 161    };
 162
 163    if (driQueryOptionb(&screen->dev->option_cache, "always_have_depth_buffer")) {
 164       /* all visuals will have a depth buffer */
 165       depth_buffer_factor = 0;
 166    }
 167    else {
 168       depth_bits_array[0] = 0;
 169       stencil_bits_array[0] = 0;
 170       depth_buffer_factor = 1;
 171    }
 172
 173    msaa_samples_max = (screen->st_api->feature_mask & ST_API_FEATURE_MS_VISUALS_MASK)
 174       ? MSAA_VISUAL_MAX_SAMPLES : 1;
 175
 176    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
 177                                             PIPE_TEXTURE_2D, 0,
 178                                             PIPE_BIND_DEPTH_STENCIL);
 179    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
 180                                             PIPE_TEXTURE_2D, 0,
 181                                             PIPE_BIND_DEPTH_STENCIL);
 182    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_UINT,
 183                                             PIPE_TEXTURE_2D, 0,
 184                                             PIPE_BIND_DEPTH_STENCIL);
 185    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_UINT_Z24_UNORM,
 186                                             PIPE_TEXTURE_2D, 0,
 187                                             PIPE_BIND_DEPTH_STENCIL);
 188    pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 189                                           PIPE_TEXTURE_2D, 0,
 190                                           PIPE_BIND_DEPTH_STENCIL);
 191    pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 192                                           PIPE_TEXTURE_2D, 0,
 193                                           PIPE_BIND_DEPTH_STENCIL);
 194
 195    if (pf_z16) {
 196       depth_bits_array[depth_buffer_factor] = 16;
 197       stencil_bits_array[depth_buffer_factor++] = 0;
 198    }
 199    if (pf_x8z24 || pf_z24x8) {
 200       depth_bits_array[depth_buffer_factor] = 24;
 201       stencil_bits_array[depth_buffer_factor++] = 0;
 202       screen->d_depth_bits_last = pf_x8z24;
 203    }
 204    if (pf_s8z24 || pf_z24s8) {
 205       depth_bits_array[depth_buffer_factor] = 24;
 206       stencil_bits_array[depth_buffer_factor++] = 8;
 207       screen->sd_depth_bits_last = pf_s8z24;
 208    }
 209    if (pf_z32) {
 210       depth_bits_array[depth_buffer_factor] = 32;
 211       stencil_bits_array[depth_buffer_factor++] = 0;
 212    }
 213
 214    mixed_color_depth =
 215       p_screen->get_param(p_screen, PIPE_CAP_MIXED_COLOR_DEPTH_BITS);
 216
 217    assert(ARRAY_SIZE(mesa_formats) == ARRAY_SIZE(pipe_formats));
 218
 219    /* Expose only BGRA ordering if the loader doesn't support RGBA ordering. */
 220    unsigned num_formats;
 221    if (dri_loader_get_cap(screen, DRI_LOADER_CAP_RGBA_ORDERING))
 222       num_formats = ARRAY_SIZE(mesa_formats);
 223    else
 224       num_formats = ARRAY_SIZE(mesa_formats) - 2;
 225
 226    /* Add configs. */
 227    for (format = 0; format < num_formats; format++) {
 228       __DRIconfig **new_configs = NULL;
 229       unsigned num_msaa_modes = 0; /* includes a single-sample mode */
 230       uint8_t msaa_modes[MSAA_VISUAL_MAX_SAMPLES];
 231
 232       if (!p_screen->is_format_supported(p_screen, pipe_formats[format],
 233                                          PIPE_TEXTURE_2D, 0,
 234                                          PIPE_BIND_RENDER_TARGET))
 235          continue;
 236
 237       for (i = 1; i <= msaa_samples_max; i++) {
 238          int samples = i > 1 ? i : 0;
 239
 240          if (p_screen->is_format_supported(p_screen, pipe_formats[format],
 241                                            PIPE_TEXTURE_2D, samples,
 242                                            PIPE_BIND_RENDER_TARGET)) {
 243             msaa_modes[num_msaa_modes++] = samples;
 244          }
 245       }
 246
 247       if (num_msaa_modes) {
 248          /* Single-sample configs with an accumulation buffer. */
 249          new_configs = driCreateConfigs(mesa_formats[format],
 250                                         depth_bits_array, stencil_bits_array,
 251                                         depth_buffer_factor, back_buffer_modes,
 252                                         ARRAY_SIZE(back_buffer_modes),
 253                                         msaa_modes, 1,
 254                                         GL_TRUE, !mixed_color_depth);
 255          configs = driConcatConfigs(configs, new_configs);
 256
 257          /* Multi-sample configs without an accumulation buffer. */
 258          if (num_msaa_modes > 1) {
 259             new_configs = driCreateConfigs(mesa_formats[format],
 260                                            depth_bits_array, stencil_bits_array,
 261                                            depth_buffer_factor, back_buffer_modes,
 262                                            ARRAY_SIZE(back_buffer_modes),
 263                                            msaa_modes+1, num_msaa_modes-1,
 264                                            GL_FALSE, !mixed_color_depth);
 265             configs = driConcatConfigs(configs, new_configs);
 266          }
 267       }
 268    }
 269
 270    if (configs == NULL) {
 271       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 272       return NULL;
 273    }
 274
 275    return (const __DRIconfig **)configs;
 276 }
 277
 278 /**
 279  * Roughly the converse of dri_fill_in_modes.
 280  */
 281 void
 282 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 283                    const struct gl_config *mode)
 284 {
 285    memset(stvis, 0, sizeof(*stvis));
 286
 287    if (!mode)
 288       return;
 289
 290    /* Deduce the color format. */
 291    switch (mode->redMask) {
 292    case 0x00FF0000:
 293       if (mode->alphaMask) {
 294          assert(mode->alphaMask == 0xFF000000);
 295          stvis->color_format = mode->sRGBCapable ?
 296                                   PIPE_FORMAT_BGRA8888_SRGB :
 297                                   PIPE_FORMAT_BGRA8888_UNORM;
 298       } else {
 299          stvis->color_format = mode->sRGBCapable ?
 300                                   PIPE_FORMAT_BGRX8888_SRGB :
 301                                   PIPE_FORMAT_BGRX8888_UNORM;
 302       }
 303       break;
 304
 305    case 0x000000FF:
 306       if (mode->alphaMask) {
 307          assert(mode->alphaMask == 0xFF000000);
 308          stvis->color_format = mode->sRGBCapable ?
 309                                   PIPE_FORMAT_RGBA8888_SRGB :
 310                                   PIPE_FORMAT_RGBA8888_UNORM;
 311       } else {
 312          stvis->color_format = mode->sRGBCapable ?
 313                                   PIPE_FORMAT_RGBX8888_SRGB :
 314                                   PIPE_FORMAT_RGBX8888_UNORM;
 315       }
 316       break;
 317
 318    case 0x0000F800:
 319       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 320       break;
 321
 322    default:
 323       assert(!"unsupported visual: invalid red mask");
 324       return;
 325    }
 326
 327    if (mode->sampleBuffers) {
 328       stvis->samples = mode->samples;
 329    }
 330
 331    switch (mode->depthBits) {
 332    default:
 333    case 0:
 334       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 335       break;
 336    case 16:
 337       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 338       break;
 339    case 24:
 340       if (mode->stencilBits == 0) {
 341          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 342                                           PIPE_FORMAT_Z24X8_UNORM:
 343                                           PIPE_FORMAT_X8Z24_UNORM;
 344       } else {
 345          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 346                                           PIPE_FORMAT_Z24_UNORM_S8_UINT:
 347                                           PIPE_FORMAT_S8_UINT_Z24_UNORM;
 348       }
 349       break;
 350    case 32:
 351       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 352       break;
 353    }
 354
 355    stvis->accum_format = (mode->haveAccumBuffer) ?
 356       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 357
 358    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 359    stvis->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
 360    if (mode->doubleBufferMode) {
 361       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 362       stvis->render_buffer = ST_ATTACHMENT_BACK_LEFT;
 363    }
 364    if (mode->stereoMode) {
 365       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 366       if (mode->doubleBufferMode)
 367          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 368    }
 369
 370    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 371       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 372    /* let the state tracker allocate the accum buffer */
 373 }
 374
 375 static boolean
 376 dri_get_egl_image(struct st_manager *smapi,
 377                   void *egl_image,
 378                   struct st_egl_image *stimg)
 379 {
 380    struct dri_screen *screen = (struct dri_screen *)smapi;
 381    __DRIimage *img = NULL;
 382
 383    if (screen->lookup_egl_image) {
 384       img = screen->lookup_egl_image(screen, egl_image);
 385    }
 386
 387    if (!img)
 388       return FALSE;
 389
 390    stimg->texture = NULL;
 391    pipe_resource_reference(&stimg->texture, img->texture);
 392    switch (img->dri_components) {
 393    case __DRI_IMAGE_COMPONENTS_Y_U_V:
 394       stimg->format = PIPE_FORMAT_IYUV;
 395       break;
 396    case __DRI_IMAGE_COMPONENTS_Y_UV:
 397       stimg->format = PIPE_FORMAT_NV12;
 398       break;
 399    default:
 400       stimg->format = img->texture->format;
 401       break;
 402    }
 403    stimg->level = img->level;
 404    stimg->layer = img->layer;
 405
 406    return TRUE;
 407 }
 408
 409 static int
 410 dri_get_param(struct st_manager *smapi,
 411               enum st_manager_param param)
 412 {
 413    struct dri_screen *screen = (struct dri_screen *)smapi;
 414
 415    switch(param) {
 416    case ST_MANAGER_BROKEN_INVALIDATE:
 417       return screen->broken_invalidate;
 418    default:
 419       return 0;
 420    }
 421 }
 422
 423 void
 424 dri_destroy_screen_helper(struct dri_screen * screen)
 425 {
 426    if (screen->base.destroy)
 427       screen->base.destroy(&screen->base);
 428
 429    if (screen->st_api && screen->st_api->destroy)
 430       screen->st_api->destroy(screen->st_api);
 431
 432    if (screen->base.screen)
 433       screen->base.screen->destroy(screen->base.screen);
 434
 435    mtx_destroy(&screen->opencl_func_mutex);
 436 }
 437
 438 void
 439 dri_destroy_screen(__DRIscreen * sPriv)
 440 {
 441    struct dri_screen *screen = dri_screen(sPriv);
 442
 443    dri_destroy_screen_helper(screen);
 444
 445    pipe_loader_release(&screen->dev, 1);
 446
 447    free(screen);
 448    sPriv->driverPrivate = NULL;
 449    sPriv->extensions = NULL;
 450 }
 451
 452 static void
 453 dri_postprocessing_init(struct dri_screen *screen)
 454 {
 455    unsigned i;
 456
 457    for (i = 0; i < PP_FILTERS; i++) {
 458       screen->pp_enabled[i] = driQueryOptioni(&screen->dev->option_cache,
 459                                               pp_filters[i].name);
 460    }
 461 }
 462
 463 static void
 464 dri_set_background_context(struct st_context_iface *st,
 465                            struct util_queue_monitoring *queue_info)
 466 {
 467    struct dri_context *ctx = (struct dri_context *)st->st_manager_private;
 468    const __DRIbackgroundCallableExtension *backgroundCallable =
 469       ctx->sPriv->dri2.backgroundCallable;
 470
 471    /* Note: Mesa will only call this function if GL multithreading is enabled
 472     * We only do that if the loader exposed the __DRI_BACKGROUND_CALLABLE
 473     * extension. So we know that backgroundCallable is not NULL.
 474     */
 475    assert(backgroundCallable);
 476    backgroundCallable->setBackgroundContext(ctx->cPriv->loaderPrivate);
 477
 478    if (ctx->hud)
 479       hud_add_queue_for_monitoring(ctx->hud, queue_info);
 480 }
 481
 482 void
 483 dri_init_options(struct dri_screen *screen)
 484 {
 485    pipe_loader_load_options(screen->dev);
 486
 487    dri_fill_st_options(screen);
 488 }
 489
 490 const __DRIconfig **
 491 dri_init_screen_helper(struct dri_screen *screen,
 492                        struct pipe_screen *pscreen)
 493 {
 494    screen->base.screen = pscreen;
 495    screen->base.get_egl_image = dri_get_egl_image;
 496    screen->base.get_param = dri_get_param;
 497    screen->base.set_background_context = dri_set_background_context;
 498
 499    screen->st_api = st_gl_api_create();
 500    if (!screen->st_api)
 501       return NULL;
 502
 503    if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
 504       screen->target = PIPE_TEXTURE_2D;
 505    else
 506       screen->target = PIPE_TEXTURE_RECT;
 507
 508    dri_postprocessing_init(screen);
 509
 510    screen->st_api->query_versions(screen->st_api, &screen->base,
 511                                   &screen->options,
 512                                   &screen->sPriv->max_gl_core_version,
 513                                   &screen->sPriv->max_gl_compat_version,
 514                                   &screen->sPriv->max_gl_es1_version,
 515                                   &screen->sPriv->max_gl_es2_version);
 516
 517    return dri_fill_in_modes(screen);
 518 }
 519
 520 /* vim: set sw=3 ts=8 sts=3 expandtab: */