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->force_s3tc_enable =
  76       driQueryOptionb(optionCache, "force_s3tc_enable");
  77    options->allow_glsl_extension_directive_midshader =
  78       driQueryOptionb(optionCache, "allow_glsl_extension_directive_midshader");
  79    options->allow_glsl_builtin_variable_redeclaration =
  80       driQueryOptionb(optionCache, "allow_glsl_builtin_variable_redeclaration");
  81    options->allow_higher_compat_version =
  82       driQueryOptionb(optionCache, "allow_higher_compat_version");
  83    options->glsl_zero_init = driQueryOptionb(optionCache, "glsl_zero_init");
  84    options->force_glsl_abs_sqrt =
  85       driQueryOptionb(optionCache, "force_glsl_abs_sqrt");
  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       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
 160    };
 161
 162    if (driQueryOptionb(&screen->dev->option_cache, "always_have_depth_buffer")) {
 163       /* all visuals will have a depth buffer */
 164       depth_buffer_factor = 0;
 165    }
 166    else {
 167       depth_bits_array[0] = 0;
 168       stencil_bits_array[0] = 0;
 169       depth_buffer_factor = 1;
 170    }
 171
 172    msaa_samples_max = (screen->st_api->feature_mask & ST_API_FEATURE_MS_VISUALS_MASK)
 173       ? MSAA_VISUAL_MAX_SAMPLES : 1;
 174
 175    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
 176                                             PIPE_TEXTURE_2D, 0,
 177                                             PIPE_BIND_DEPTH_STENCIL);
 178    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
 179                                             PIPE_TEXTURE_2D, 0,
 180                                             PIPE_BIND_DEPTH_STENCIL);
 181    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_UINT,
 182                                             PIPE_TEXTURE_2D, 0,
 183                                             PIPE_BIND_DEPTH_STENCIL);
 184    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_UINT_Z24_UNORM,
 185                                             PIPE_TEXTURE_2D, 0,
 186                                             PIPE_BIND_DEPTH_STENCIL);
 187    pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 188                                           PIPE_TEXTURE_2D, 0,
 189                                           PIPE_BIND_DEPTH_STENCIL);
 190    pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 191                                           PIPE_TEXTURE_2D, 0,
 192                                           PIPE_BIND_DEPTH_STENCIL);
 193
 194    if (pf_z16) {
 195       depth_bits_array[depth_buffer_factor] = 16;
 196       stencil_bits_array[depth_buffer_factor++] = 0;
 197    }
 198    if (pf_x8z24 || pf_z24x8) {
 199       depth_bits_array[depth_buffer_factor] = 24;
 200       stencil_bits_array[depth_buffer_factor++] = 0;
 201       screen->d_depth_bits_last = pf_x8z24;
 202    }
 203    if (pf_s8z24 || pf_z24s8) {
 204       depth_bits_array[depth_buffer_factor] = 24;
 205       stencil_bits_array[depth_buffer_factor++] = 8;
 206       screen->sd_depth_bits_last = pf_s8z24;
 207    }
 208    if (pf_z32) {
 209       depth_bits_array[depth_buffer_factor] = 32;
 210       stencil_bits_array[depth_buffer_factor++] = 0;
 211    }
 212
 213    mixed_color_depth =
 214       p_screen->get_param(p_screen, PIPE_CAP_MIXED_COLOR_DEPTH_BITS);
 215
 216    assert(ARRAY_SIZE(mesa_formats) == ARRAY_SIZE(pipe_formats));
 217
 218    /* Expose only BGRA ordering if the loader doesn't support RGBA ordering. */
 219    unsigned num_formats;
 220    if (dri_loader_get_cap(screen, DRI_LOADER_CAP_RGBA_ORDERING))
 221       num_formats = ARRAY_SIZE(mesa_formats);
 222    else
 223       num_formats = 5;
 224
 225    /* Add configs. */
 226    for (format = 0; format < num_formats; format++) {
 227       __DRIconfig **new_configs = NULL;
 228       unsigned num_msaa_modes = 0; /* includes a single-sample mode */
 229       uint8_t msaa_modes[MSAA_VISUAL_MAX_SAMPLES];
 230
 231       if (!p_screen->is_format_supported(p_screen, pipe_formats[format],
 232                                          PIPE_TEXTURE_2D, 0,
 233                                          PIPE_BIND_RENDER_TARGET))
 234          continue;
 235
 236       for (i = 1; i <= msaa_samples_max; i++) {
 237          int samples = i > 1 ? i : 0;
 238
 239          if (p_screen->is_format_supported(p_screen, pipe_formats[format],
 240                                            PIPE_TEXTURE_2D, samples,
 241                                            PIPE_BIND_RENDER_TARGET)) {
 242             msaa_modes[num_msaa_modes++] = samples;
 243          }
 244       }
 245
 246       if (num_msaa_modes) {
 247          /* Single-sample configs with an accumulation buffer. */
 248          new_configs = driCreateConfigs(mesa_formats[format],
 249                                         depth_bits_array, stencil_bits_array,
 250                                         depth_buffer_factor, back_buffer_modes,
 251                                         ARRAY_SIZE(back_buffer_modes),
 252                                         msaa_modes, 1,
 253                                         GL_TRUE, !mixed_color_depth);
 254          configs = driConcatConfigs(configs, new_configs);
 255
 256          /* Multi-sample configs without an accumulation buffer. */
 257          if (num_msaa_modes > 1) {
 258             new_configs = driCreateConfigs(mesa_formats[format],
 259                                            depth_bits_array, stencil_bits_array,
 260                                            depth_buffer_factor, back_buffer_modes,
 261                                            ARRAY_SIZE(back_buffer_modes),
 262                                            msaa_modes+1, num_msaa_modes-1,
 263                                            GL_FALSE, !mixed_color_depth);
 264             configs = driConcatConfigs(configs, new_configs);
 265          }
 266       }
 267    }
 268
 269    if (configs == NULL) {
 270       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 271       return NULL;
 272    }
 273
 274    return (const __DRIconfig **)configs;
 275 }
 276
 277 /**
 278  * Roughly the converse of dri_fill_in_modes.
 279  */
 280 void
 281 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 282                    const struct gl_config *mode)
 283 {
 284    memset(stvis, 0, sizeof(*stvis));
 285
 286    if (!mode)
 287       return;
 288
 289    /* Deduce the color format. */
 290    switch (mode->redMask) {
 291    case 0x00FF0000:
 292       if (mode->alphaMask) {
 293          assert(mode->alphaMask == 0xFF000000);
 294          stvis->color_format = mode->sRGBCapable ?
 295                                   PIPE_FORMAT_BGRA8888_SRGB :
 296                                   PIPE_FORMAT_BGRA8888_UNORM;
 297       } else {
 298          stvis->color_format = mode->sRGBCapable ?
 299                                   PIPE_FORMAT_BGRX8888_SRGB :
 300                                   PIPE_FORMAT_BGRX8888_UNORM;
 301       }
 302       break;
 303
 304    case 0x000000FF:
 305       if (mode->alphaMask) {
 306          assert(mode->alphaMask == 0xFF000000);
 307          stvis->color_format = mode->sRGBCapable ?
 308                                   PIPE_FORMAT_RGBA8888_SRGB :
 309                                   PIPE_FORMAT_RGBA8888_UNORM;
 310       } else {
 311          stvis->color_format = mode->sRGBCapable ?
 312                                   PIPE_FORMAT_RGBX8888_SRGB :
 313                                   PIPE_FORMAT_RGBX8888_UNORM;
 314       }
 315       break;
 316
 317    case 0x0000F800:
 318       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 319       break;
 320
 321    default:
 322       assert(!"unsupported visual: invalid red mask");
 323       return;
 324    }
 325
 326    if (mode->sampleBuffers) {
 327       stvis->samples = mode->samples;
 328    }
 329
 330    switch (mode->depthBits) {
 331    default:
 332    case 0:
 333       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 334       break;
 335    case 16:
 336       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 337       break;
 338    case 24:
 339       if (mode->stencilBits == 0) {
 340          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 341                                           PIPE_FORMAT_Z24X8_UNORM:
 342                                           PIPE_FORMAT_X8Z24_UNORM;
 343       } else {
 344          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 345                                           PIPE_FORMAT_Z24_UNORM_S8_UINT:
 346                                           PIPE_FORMAT_S8_UINT_Z24_UNORM;
 347       }
 348       break;
 349    case 32:
 350       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 351       break;
 352    }
 353
 354    stvis->accum_format = (mode->haveAccumBuffer) ?
 355       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 356
 357    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 358    stvis->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
 359    if (mode->doubleBufferMode) {
 360       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 361       stvis->render_buffer = ST_ATTACHMENT_BACK_LEFT;
 362    }
 363    if (mode->stereoMode) {
 364       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 365       if (mode->doubleBufferMode)
 366          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 367    }
 368
 369    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 370       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 371    /* let the state tracker allocate the accum buffer */
 372 }
 373
 374 static boolean
 375 dri_get_egl_image(struct st_manager *smapi,
 376                   void *egl_image,
 377                   struct st_egl_image *stimg)
 378 {
 379    struct dri_screen *screen = (struct dri_screen *)smapi;
 380    __DRIimage *img = NULL;
 381
 382    if (screen->lookup_egl_image) {
 383       img = screen->lookup_egl_image(screen, egl_image);
 384    }
 385
 386    if (!img)
 387       return FALSE;
 388
 389    stimg->texture = NULL;
 390    pipe_resource_reference(&stimg->texture, img->texture);
 391    switch (img->dri_components) {
 392    case __DRI_IMAGE_COMPONENTS_Y_U_V:
 393       stimg->format = PIPE_FORMAT_IYUV;
 394       break;
 395    case __DRI_IMAGE_COMPONENTS_Y_UV:
 396       stimg->format = PIPE_FORMAT_NV12;
 397       break;
 398    default:
 399       stimg->format = img->texture->format;
 400       break;
 401    }
 402    stimg->level = img->level;
 403    stimg->layer = img->layer;
 404
 405    return TRUE;
 406 }
 407
 408 static int
 409 dri_get_param(struct st_manager *smapi,
 410               enum st_manager_param param)
 411 {
 412    struct dri_screen *screen = (struct dri_screen *)smapi;
 413
 414    switch(param) {
 415    case ST_MANAGER_BROKEN_INVALIDATE:
 416       return screen->broken_invalidate;
 417    default:
 418       return 0;
 419    }
 420 }
 421
 422 void
 423 dri_destroy_screen_helper(struct dri_screen * screen)
 424 {
 425    if (screen->base.destroy)
 426       screen->base.destroy(&screen->base);
 427
 428    if (screen->st_api && screen->st_api->destroy)
 429       screen->st_api->destroy(screen->st_api);
 430
 431    if (screen->base.screen)
 432       screen->base.screen->destroy(screen->base.screen);
 433
 434    mtx_destroy(&screen->opencl_func_mutex);
 435 }
 436
 437 void
 438 dri_destroy_screen(__DRIscreen * sPriv)
 439 {
 440    struct dri_screen *screen = dri_screen(sPriv);
 441
 442    dri_destroy_screen_helper(screen);
 443
 444    pipe_loader_release(&screen->dev, 1);
 445
 446    free(screen);
 447    sPriv->driverPrivate = NULL;
 448    sPriv->extensions = NULL;
 449 }
 450
 451 static void
 452 dri_postprocessing_init(struct dri_screen *screen)
 453 {
 454    unsigned i;
 455
 456    for (i = 0; i < PP_FILTERS; i++) {
 457       screen->pp_enabled[i] = driQueryOptioni(&screen->dev->option_cache,
 458                                               pp_filters[i].name);
 459    }
 460 }
 461
 462 static void
 463 dri_set_background_context(struct st_context_iface *st,
 464                            struct util_queue_monitoring *queue_info)
 465 {
 466    struct dri_context *ctx = (struct dri_context *)st->st_manager_private;
 467    const __DRIbackgroundCallableExtension *backgroundCallable =
 468       ctx->sPriv->dri2.backgroundCallable;
 469
 470    /* Note: Mesa will only call this function if GL multithreading is enabled
 471     * We only do that if the loader exposed the __DRI_BACKGROUND_CALLABLE
 472     * extension. So we know that backgroundCallable is not NULL.
 473     */
 474    assert(backgroundCallable);
 475    backgroundCallable->setBackgroundContext(ctx->cPriv->loaderPrivate);
 476
 477    if (ctx->hud)
 478       hud_add_queue_for_monitoring(ctx->hud, queue_info);
 479 }
 480
 481 void
 482 dri_init_options(struct dri_screen *screen)
 483 {
 484    pipe_loader_load_options(screen->dev);
 485
 486    dri_fill_st_options(screen);
 487 }
 488
 489 const __DRIconfig **
 490 dri_init_screen_helper(struct dri_screen *screen,
 491                        struct pipe_screen *pscreen)
 492 {
 493    screen->base.screen = pscreen;
 494    screen->base.get_egl_image = dri_get_egl_image;
 495    screen->base.get_param = dri_get_param;
 496    screen->base.set_background_context = dri_set_background_context;
 497
 498    screen->st_api = st_gl_api_create();
 499    if (!screen->st_api)
 500       return NULL;
 501
 502    if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
 503       screen->target = PIPE_TEXTURE_2D;
 504    else
 505       screen->target = PIPE_TEXTURE_RECT;
 506
 507    /* Handle force_s3tc_enable. */
 508    if (!util_format_s3tc_enabled && screen->options.force_s3tc_enable) {
 509       /* Ensure libtxc_dxtn has been loaded if available.
 510        * Forcing S3TC on before calling this would prevent loading
 511        * the library.
 512        * This is just a precaution, the driver should have called it
 513        * already.
 514        */
 515       util_format_s3tc_init();
 516
 517       util_format_s3tc_enabled = TRUE;
 518    }
 519
 520    dri_postprocessing_init(screen);
 521
 522    screen->st_api->query_versions(screen->st_api, &screen->base,
 523                                   &screen->options,
 524                                   &screen->sPriv->max_gl_core_version,
 525                                   &screen->sPriv->max_gl_compat_version,
 526                                   &screen->sPriv->max_gl_es1_version,
 527                                   &screen->sPriv->max_gl_es2_version);
 528
 529    return dri_fill_in_modes(screen);
 530 }
 531
 532 /* vim: set sw=3 ts=8 sts=3 expandtab: */