src/egl/drivers/dri2/egl_dri2.c

   1 /*
   2  * Copyright © 2010 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  19  * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  20  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Kristian Høgsberg <krh@bitplanet.net>
  26  */
  27
  28 #define WL_HIDE_DEPRECATED
  29
  30 #include <stdbool.h>
  31 #include <stdint.h>
  32 #include <stdbool.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35 #include <stdio.h>
  36 #include <limits.h>
  37 #include <dlfcn.h>
  38 #include <fcntl.h>
  39 #include <errno.h>
  40 #include <unistd.h>
  41 #include <c11/threads.h>
  42 #include <time.h>
  43 #ifdef HAVE_LIBDRM
  44 #include <xf86drm.h>
  45 #include <drm_fourcc.h>
  46 #endif
  47 #include <GL/gl.h>
  48 #include <GL/internal/dri_interface.h>
  49 #include "GL/mesa_glinterop.h"
  50 #include <sys/types.h>
  51 #include <sys/stat.h>
  52
  53 #ifdef HAVE_WAYLAND_PLATFORM
  54 #include "wayland-drm.h"
  55 #include "wayland-drm-client-protocol.h"
  56 #endif
  57
  58 #include "egl_dri2.h"
  59 #include "util/u_atomic.h"
  60
  61 /* The kernel header drm_fourcc.h defines the DRM formats below.  We duplicate
  62  * some of the definitions here so that building Mesa won't bleeding-edge
  63  * kernel headers.
  64  */
  65 #ifndef DRM_FORMAT_R8
  66 #define DRM_FORMAT_R8            fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
  67 #endif
  68
  69 #ifndef DRM_FORMAT_RG88
  70 #define DRM_FORMAT_RG88          fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
  71 #endif
  72
  73 #ifndef DRM_FORMAT_GR88
  74 #define DRM_FORMAT_GR88          fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
  75 #endif
  76
  77 const __DRIuseInvalidateExtension use_invalidate = {
  78    .base = { __DRI_USE_INVALIDATE, 1 }
  79 };
  80
  81 EGLint dri2_to_egl_attribute_map[] = {
  82    0,
  83    EGL_BUFFER_SIZE,             /* __DRI_ATTRIB_BUFFER_SIZE */
  84    EGL_LEVEL,                   /* __DRI_ATTRIB_LEVEL */
  85    EGL_RED_SIZE,                /* __DRI_ATTRIB_RED_SIZE */
  86    EGL_GREEN_SIZE,              /* __DRI_ATTRIB_GREEN_SIZE */
  87    EGL_BLUE_SIZE,               /* __DRI_ATTRIB_BLUE_SIZE */
  88    EGL_LUMINANCE_SIZE,          /* __DRI_ATTRIB_LUMINANCE_SIZE */
  89    EGL_ALPHA_SIZE,              /* __DRI_ATTRIB_ALPHA_SIZE */
  90    0,                           /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
  91    EGL_DEPTH_SIZE,              /* __DRI_ATTRIB_DEPTH_SIZE */
  92    EGL_STENCIL_SIZE,            /* __DRI_ATTRIB_STENCIL_SIZE */
  93    0,                           /* __DRI_ATTRIB_ACCUM_RED_SIZE */
  94    0,                           /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
  95    0,                           /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
  96    0,                           /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
  97    EGL_SAMPLE_BUFFERS,          /* __DRI_ATTRIB_SAMPLE_BUFFERS */
  98    EGL_SAMPLES,                 /* __DRI_ATTRIB_SAMPLES */
  99    0,                           /* __DRI_ATTRIB_RENDER_TYPE, */
 100    0,                           /* __DRI_ATTRIB_CONFIG_CAVEAT */
 101    0,                           /* __DRI_ATTRIB_CONFORMANT */
 102    0,                           /* __DRI_ATTRIB_DOUBLE_BUFFER */
 103    0,                           /* __DRI_ATTRIB_STEREO */
 104    0,                           /* __DRI_ATTRIB_AUX_BUFFERS */
 105    0,                           /* __DRI_ATTRIB_TRANSPARENT_TYPE */
 106    0,                           /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
 107    0,                           /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
 108    0,                           /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
 109    0,                           /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
 110    0,                           /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
 111    0,                           /* __DRI_ATTRIB_FLOAT_MODE (deprecated) */
 112    0,                           /* __DRI_ATTRIB_RED_MASK */
 113    0,                           /* __DRI_ATTRIB_GREEN_MASK */
 114    0,                           /* __DRI_ATTRIB_BLUE_MASK */
 115    0,                           /* __DRI_ATTRIB_ALPHA_MASK */
 116    EGL_MAX_PBUFFER_WIDTH,       /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
 117    EGL_MAX_PBUFFER_HEIGHT,      /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
 118    EGL_MAX_PBUFFER_PIXELS,      /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
 119    0,                           /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
 120    0,                           /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
 121    0,                           /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
 122    0,                           /* __DRI_ATTRIB_SWAP_METHOD */
 123    EGL_MAX_SWAP_INTERVAL,       /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
 124    EGL_MIN_SWAP_INTERVAL,       /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
 125    0,                           /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
 126    0,                           /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
 127    0,                           /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
 128    0,                           /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
 129    EGL_Y_INVERTED_NOK,          /* __DRI_ATTRIB_YINVERTED */
 130    0,                           /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
 131 };
 132
 133 const __DRIconfig *
 134 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
 135                     EGLenum colorspace)
 136 {
 137    const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
 138
 139    return surface_type == EGL_WINDOW_BIT ? conf->dri_double_config[srgb] :
 140                                            conf->dri_single_config[srgb];
 141 }
 142
 143 static EGLBoolean
 144 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
 145 {
 146    if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
 147       return EGL_FALSE;
 148
 149    if (!_eglMatchConfig(conf, criteria))
 150       return EGL_FALSE;
 151
 152    return EGL_TRUE;
 153 }
 154
 155 struct dri2_egl_config *
 156 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
 157                 EGLint surface_type, const EGLint *attr_list,
 158                 const unsigned int *rgba_masks)
 159 {
 160    struct dri2_egl_config *conf;
 161    struct dri2_egl_display *dri2_dpy;
 162    _EGLConfig base;
 163    unsigned int attrib, value, double_buffer;
 164    bool srgb = false;
 165    EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
 166    unsigned int dri_masks[4] = { 0, 0, 0, 0 };
 167    _EGLConfig *matching_config;
 168    EGLint num_configs = 0;
 169    EGLint config_id;
 170    int i;
 171
 172    dri2_dpy = disp->DriverData;
 173    _eglInitConfig(&base, disp, id);
 174
 175    i = 0;
 176    double_buffer = 0;
 177    bind_to_texture_rgb = 0;
 178    bind_to_texture_rgba = 0;
 179
 180    while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
 181       switch (attrib) {
 182       case __DRI_ATTRIB_RENDER_TYPE:
 183          if (value & __DRI_ATTRIB_RGBA_BIT)
 184             value = EGL_RGB_BUFFER;
 185          else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
 186             value = EGL_LUMINANCE_BUFFER;
 187          else
 188             return NULL;
 189          _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
 190          break;
 191
 192       case __DRI_ATTRIB_CONFIG_CAVEAT:
 193          if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
 194             value = EGL_NON_CONFORMANT_CONFIG;
 195          else if (value & __DRI_ATTRIB_SLOW_BIT)
 196             value = EGL_SLOW_CONFIG;
 197          else
 198             value = EGL_NONE;
 199          _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
 200          break;
 201
 202       case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
 203          bind_to_texture_rgb = value;
 204          break;
 205
 206       case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
 207          bind_to_texture_rgba = value;
 208          break;
 209
 210       case __DRI_ATTRIB_DOUBLE_BUFFER:
 211          double_buffer = value;
 212          break;
 213
 214       case __DRI_ATTRIB_RED_MASK:
 215          dri_masks[0] = value;
 216          break;
 217
 218       case __DRI_ATTRIB_GREEN_MASK:
 219          dri_masks[1] = value;
 220          break;
 221
 222       case __DRI_ATTRIB_BLUE_MASK:
 223          dri_masks[2] = value;
 224          break;
 225
 226       case __DRI_ATTRIB_ALPHA_MASK:
 227          dri_masks[3] = value;
 228          break;
 229
 230       case __DRI_ATTRIB_ACCUM_RED_SIZE:
 231       case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
 232       case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
 233       case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
 234          /* Don't expose visuals with the accumulation buffer. */
 235          if (value > 0)
 236             return NULL;
 237          break;
 238
 239       case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
 240          srgb = value != 0;
 241          if (!disp->Extensions.KHR_gl_colorspace && srgb)
 242             return NULL;
 243          break;
 244
 245       default:
 246          key = dri2_to_egl_attribute_map[attrib];
 247          if (key != 0)
 248             _eglSetConfigKey(&base, key, value);
 249          break;
 250       }
 251    }
 252
 253    if (attr_list)
 254       for (i = 0; attr_list[i] != EGL_NONE; i += 2)
 255          _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
 256
 257    if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
 258       return NULL;
 259
 260    base.NativeRenderable = EGL_TRUE;
 261
 262    base.SurfaceType = surface_type;
 263    if (surface_type & (EGL_PBUFFER_BIT |
 264        (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
 265       base.BindToTextureRGB = bind_to_texture_rgb;
 266       if (base.AlphaSize > 0)
 267          base.BindToTextureRGBA = bind_to_texture_rgba;
 268    }
 269
 270    base.RenderableType = disp->ClientAPIs;
 271    base.Conformant = disp->ClientAPIs;
 272
 273    base.MinSwapInterval = dri2_dpy->min_swap_interval;
 274    base.MaxSwapInterval = dri2_dpy->max_swap_interval;
 275
 276    if (!_eglValidateConfig(&base, EGL_FALSE)) {
 277       _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
 278       return NULL;
 279    }
 280
 281    config_id = base.ConfigID;
 282    base.ConfigID    = EGL_DONT_CARE;
 283    base.SurfaceType = EGL_DONT_CARE;
 284    num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
 285                                  (_EGLArrayForEach) dri2_match_config, &base);
 286
 287    if (num_configs == 1) {
 288       conf = (struct dri2_egl_config *) matching_config;
 289
 290       if (double_buffer && !conf->dri_double_config[srgb])
 291          conf->dri_double_config[srgb] = dri_config;
 292       else if (!double_buffer && !conf->dri_single_config[srgb])
 293          conf->dri_single_config[srgb] = dri_config;
 294       else
 295          /* a similar config type is already added (unlikely) => discard */
 296          return NULL;
 297    }
 298    else if (num_configs == 0) {
 299       conf = calloc(1, sizeof *conf);
 300       if (conf == NULL)
 301          return NULL;
 302
 303       if (double_buffer)
 304          conf->dri_double_config[srgb] = dri_config;
 305       else
 306          conf->dri_single_config[srgb] = dri_config;
 307
 308       memcpy(&conf->base, &base, sizeof base);
 309       conf->base.SurfaceType = 0;
 310       conf->base.ConfigID = config_id;
 311
 312       _eglLinkConfig(&conf->base);
 313    }
 314    else {
 315       assert(0);
 316       return NULL;
 317    }
 318
 319    if (double_buffer) {
 320       surface_type &= ~EGL_PIXMAP_BIT;
 321    }
 322
 323    conf->base.SurfaceType |= surface_type;
 324
 325    return conf;
 326 }
 327
 328 __DRIimage *
 329 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
 330 {
 331    _EGLDisplay *disp = data;
 332    struct dri2_egl_image *dri2_img;
 333    _EGLImage *img;
 334
 335    (void) screen;
 336
 337    img = _eglLookupImage(image, disp);
 338    if (img == NULL) {
 339       _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
 340       return NULL;
 341    }
 342
 343    dri2_img = dri2_egl_image(image);
 344
 345    return dri2_img->dri_image;
 346 }
 347
 348 const __DRIimageLookupExtension image_lookup_extension = {
 349    .base = { __DRI_IMAGE_LOOKUP, 1 },
 350
 351    .lookupEGLImage       = dri2_lookup_egl_image
 352 };
 353
 354 struct dri2_extension_match {
 355    const char *name;
 356    int version;
 357    int offset;
 358 };
 359
 360 static struct dri2_extension_match dri3_driver_extensions[] = {
 361    { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
 362    { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
 363    { NULL, 0, 0 }
 364 };
 365
 366 static struct dri2_extension_match dri2_driver_extensions[] = {
 367    { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
 368    { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
 369    { NULL, 0, 0 }
 370 };
 371
 372 static struct dri2_extension_match dri2_core_extensions[] = {
 373    { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
 374    { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
 375    { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
 376    { NULL, 0, 0 }
 377 };
 378
 379 static struct dri2_extension_match swrast_driver_extensions[] = {
 380    { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
 381    { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
 382    { NULL, 0, 0 }
 383 };
 384
 385 static struct dri2_extension_match swrast_core_extensions[] = {
 386    { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
 387    { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
 388    { NULL, 0, 0 }
 389 };
 390
 391 static EGLBoolean
 392 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
 393                      struct dri2_extension_match *matches,
 394                      const __DRIextension **extensions)
 395 {
 396    int i, j, ret = EGL_TRUE;
 397    void *field;
 398
 399    for (i = 0; extensions[i]; i++) {
 400       _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
 401       for (j = 0; matches[j].name; j++) {
 402          if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
 403              extensions[i]->version >= matches[j].version) {
 404             field = ((char *) dri2_dpy + matches[j].offset);
 405             *(const __DRIextension **) field = extensions[i];
 406             _eglLog(_EGL_INFO, "found extension %s version %d",
 407                     extensions[i]->name, extensions[i]->version);
 408          }
 409       }
 410    }
 411
 412    for (j = 0; matches[j].name; j++) {
 413       field = ((char *) dri2_dpy + matches[j].offset);
 414       if (*(const __DRIextension **) field == NULL) {
 415          _eglLog(_EGL_WARNING, "did not find extension %s version %d",
 416                  matches[j].name, matches[j].version);
 417          ret = EGL_FALSE;
 418       }
 419    }
 420
 421    return ret;
 422 }
 423
 424 static const __DRIextension **
 425 dri2_open_driver(_EGLDisplay *disp)
 426 {
 427    struct dri2_egl_display *dri2_dpy = disp->DriverData;
 428    const __DRIextension **extensions = NULL;
 429    char path[PATH_MAX], *search_paths, *p, *next, *end;
 430    char *get_extensions_name;
 431    const __DRIextension **(*get_extensions)(void);
 432
 433    search_paths = NULL;
 434    if (geteuid() == getuid()) {
 435       /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
 436       search_paths = getenv("LIBGL_DRIVERS_PATH");
 437    }
 438    if (search_paths == NULL)
 439       search_paths = DEFAULT_DRIVER_DIR;
 440
 441    dri2_dpy->driver = NULL;
 442    end = search_paths + strlen(search_paths);
 443    for (p = search_paths; p < end; p = next + 1) {
 444       int len;
 445       next = strchr(p, ':');
 446       if (next == NULL)
 447          next = end;
 448
 449       len = next - p;
 450 #if GLX_USE_TLS
 451       snprintf(path, sizeof path,
 452                "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
 453       dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
 454 #endif
 455       if (dri2_dpy->driver == NULL) {
 456          snprintf(path, sizeof path,
 457                   "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
 458          dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
 459          if (dri2_dpy->driver == NULL)
 460             _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
 461       }
 462       /* not need continue to loop all paths once the driver is found */
 463       if (dri2_dpy->driver != NULL)
 464          break;
 465
 466 #ifdef ANDROID
 467       snprintf(path, sizeof path, "%.*s/gallium_dri.so", len, p);
 468       dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
 469       if (dri2_dpy->driver == NULL)
 470          _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
 471       else
 472          break;
 473 #endif
 474    }
 475
 476    if (dri2_dpy->driver == NULL) {
 477       _eglLog(_EGL_WARNING,
 478               "DRI2: failed to open %s (search paths %s)",
 479               dri2_dpy->driver_name, search_paths);
 480       return NULL;
 481    }
 482
 483    _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
 484
 485    if (asprintf(&get_extensions_name, "%s_%s",
 486                 __DRI_DRIVER_GET_EXTENSIONS, dri2_dpy->driver_name) != -1) {
 487       get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
 488       if (get_extensions) {
 489          extensions = get_extensions();
 490       } else {
 491          _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
 492                  get_extensions_name, dlerror());
 493       }
 494       free(get_extensions_name);
 495    }
 496
 497    if (!extensions)
 498       extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
 499    if (extensions == NULL) {
 500       _eglLog(_EGL_WARNING,
 501               "DRI2: driver exports no extensions (%s)", dlerror());
 502       dlclose(dri2_dpy->driver);
 503    }
 504
 505    return extensions;
 506 }
 507
 508 EGLBoolean
 509 dri2_load_driver_dri3(_EGLDisplay *disp)
 510 {
 511    struct dri2_egl_display *dri2_dpy = disp->DriverData;
 512    const __DRIextension **extensions;
 513
 514    extensions = dri2_open_driver(disp);
 515    if (!extensions)
 516       return EGL_FALSE;
 517
 518    if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions)) {
 519       dlclose(dri2_dpy->driver);
 520       return EGL_FALSE;
 521    }
 522    dri2_dpy->driver_extensions = extensions;
 523
 524    return EGL_TRUE;
 525 }
 526
 527 EGLBoolean
 528 dri2_load_driver(_EGLDisplay *disp)
 529 {
 530    struct dri2_egl_display *dri2_dpy = disp->DriverData;
 531    const __DRIextension **extensions;
 532
 533    extensions = dri2_open_driver(disp);
 534    if (!extensions)
 535       return EGL_FALSE;
 536
 537    if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
 538       dlclose(dri2_dpy->driver);
 539       return EGL_FALSE;
 540    }
 541    dri2_dpy->driver_extensions = extensions;
 542
 543    return EGL_TRUE;
 544 }
 545
 546 EGLBoolean
 547 dri2_load_driver_swrast(_EGLDisplay *disp)
 548 {
 549    struct dri2_egl_display *dri2_dpy = disp->DriverData;
 550    const __DRIextension **extensions;
 551
 552    extensions = dri2_open_driver(disp);
 553    if (!extensions)
 554       return EGL_FALSE;
 555
 556    if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
 557       dlclose(dri2_dpy->driver);
 558       return EGL_FALSE;
 559    }
 560    dri2_dpy->driver_extensions = extensions;
 561
 562    return EGL_TRUE;
 563 }
 564
 565 static unsigned
 566 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
 567 {
 568    const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
 569    unsigned int value = 0;
 570
 571    if (!rendererQuery ||
 572        rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
 573       return 0;
 574
 575    return value;
 576 }
 577
 578 void
 579 dri2_setup_screen(_EGLDisplay *disp)
 580 {
 581    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 582    unsigned int api_mask;
 583
 584    if (dri2_dpy->image_driver) {
 585       api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
 586    } else if (dri2_dpy->dri2) {
 587       api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
 588    } else {
 589       assert(dri2_dpy->swrast);
 590       api_mask = 1 << __DRI_API_OPENGL |
 591                  1 << __DRI_API_GLES |
 592                  1 << __DRI_API_GLES2 |
 593                  1 << __DRI_API_GLES3;
 594    }
 595
 596    disp->ClientAPIs = 0;
 597    if (api_mask & (1 <<__DRI_API_OPENGL))
 598       disp->ClientAPIs |= EGL_OPENGL_BIT;
 599    if (api_mask & (1 <<__DRI_API_GLES))
 600       disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
 601    if (api_mask & (1 << __DRI_API_GLES2))
 602       disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
 603    if (api_mask & (1 << __DRI_API_GLES3))
 604       disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
 605
 606    assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
 607    disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
 608    disp->Extensions.MESA_configless_context = EGL_TRUE;
 609
 610    if (dri2_renderer_query_integer(dri2_dpy,
 611                                    __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
 612       disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
 613
 614    if (dri2_dpy->image_driver ||
 615        (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
 616        (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
 617       disp->Extensions.KHR_create_context = EGL_TRUE;
 618
 619       if (dri2_dpy->robustness)
 620          disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
 621    }
 622
 623    if (dri2_dpy->fence) {
 624       disp->Extensions.KHR_fence_sync = EGL_TRUE;
 625       disp->Extensions.KHR_wait_sync = EGL_TRUE;
 626       if (dri2_dpy->fence->get_fence_from_cl_event)
 627          disp->Extensions.KHR_cl_event2 = EGL_TRUE;
 628    }
 629
 630    disp->Extensions.KHR_reusable_sync = EGL_TRUE;
 631
 632    if (dri2_dpy->image) {
 633       if (dri2_dpy->image->base.version >= 10 &&
 634           dri2_dpy->image->getCapabilities != NULL) {
 635          int capabilities;
 636
 637          capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
 638          disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
 639
 640          if (dri2_dpy->image->base.version >= 11)
 641             disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
 642       } else {
 643          disp->Extensions.MESA_drm_image = EGL_TRUE;
 644          if (dri2_dpy->image->base.version >= 11)
 645             disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
 646       }
 647
 648       disp->Extensions.KHR_image_base = EGL_TRUE;
 649       disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
 650       if (dri2_dpy->image->base.version >= 5 &&
 651           dri2_dpy->image->createImageFromTexture) {
 652          disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
 653          disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
 654       }
 655       if (dri2_renderer_query_integer(dri2_dpy,
 656                                       __DRI2_RENDERER_HAS_TEXTURE_3D))
 657          disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
 658 #ifdef HAVE_LIBDRM
 659       if (dri2_dpy->image->base.version >= 8 &&
 660           dri2_dpy->image->createImageFromDmaBufs) {
 661          disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
 662       }
 663 #endif
 664    }
 665 }
 666
 667 /* All platforms but DRM call this function to create the screen, query the
 668  * dri extensions, setup the vtables and populate the driver_configs.
 669  * DRM inherits all that information from its display - GBM.
 670  */
 671 EGLBoolean
 672 dri2_create_screen(_EGLDisplay *disp)
 673 {
 674    const __DRIextension **extensions;
 675    struct dri2_egl_display *dri2_dpy;
 676    unsigned i;
 677
 678    dri2_dpy = disp->DriverData;
 679
 680    if (dri2_dpy->image_driver) {
 681       dri2_dpy->dri_screen =
 682          dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
 683                                                   dri2_dpy->extensions,
 684                                                   dri2_dpy->driver_extensions,
 685                                                   &dri2_dpy->driver_configs,
 686                                                   disp);
 687    } else if (dri2_dpy->dri2) {
 688       if (dri2_dpy->dri2->base.version >= 4) {
 689          dri2_dpy->dri_screen =
 690             dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
 691                                              dri2_dpy->extensions,
 692                                              dri2_dpy->driver_extensions,
 693                                              &dri2_dpy->driver_configs, disp);
 694       } else {
 695          dri2_dpy->dri_screen =
 696             dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
 697                                             dri2_dpy->extensions,
 698                                             &dri2_dpy->driver_configs, disp);
 699       }
 700    } else {
 701       assert(dri2_dpy->swrast);
 702       if (dri2_dpy->swrast->base.version >= 4) {
 703          dri2_dpy->dri_screen =
 704             dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->extensions,
 705                                                dri2_dpy->driver_extensions,
 706                                                &dri2_dpy->driver_configs, disp);
 707       } else {
 708          dri2_dpy->dri_screen =
 709             dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
 710                                               &dri2_dpy->driver_configs, disp);
 711       }
 712    }
 713
 714    if (dri2_dpy->dri_screen == NULL) {
 715       _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
 716       return EGL_FALSE;
 717    }
 718
 719    dri2_dpy->own_dri_screen = 1;
 720
 721    extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
 722
 723    if (dri2_dpy->image_driver || dri2_dpy->dri2) {
 724       if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
 725          goto cleanup_dri_screen;
 726    } else {
 727       assert(dri2_dpy->swrast);
 728       if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
 729          goto cleanup_dri_screen;
 730    }
 731
 732    for (i = 0; extensions[i]; i++) {
 733       if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) {
 734          dri2_dpy->robustness = (__DRIrobustnessExtension *) extensions[i];
 735       }
 736       if (strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0) {
 737          dri2_dpy->config = (__DRI2configQueryExtension *) extensions[i];
 738       }
 739       if (strcmp(extensions[i]->name, __DRI2_FENCE) == 0) {
 740          dri2_dpy->fence = (__DRI2fenceExtension *) extensions[i];
 741       }
 742       if (strcmp(extensions[i]->name, __DRI2_RENDERER_QUERY) == 0) {
 743          dri2_dpy->rendererQuery = (__DRI2rendererQueryExtension *) extensions[i];
 744       }
 745       if (strcmp(extensions[i]->name, __DRI2_INTEROP) == 0)
 746          dri2_dpy->interop = (__DRI2interopExtension *) extensions[i];
 747    }
 748
 749    dri2_setup_screen(disp);
 750
 751    return EGL_TRUE;
 752
 753  cleanup_dri_screen:
 754    dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
 755
 756    return EGL_FALSE;
 757 }
 758
 759 /**
 760  * Called via eglInitialize(), GLX_drv->API.Initialize().
 761  *
 762  * This must be guaranteed to be called exactly once, even if eglInitialize is
 763  * called many times (without a eglTerminate in between).
 764  */
 765 static EGLBoolean
 766 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
 767 {
 768    EGLBoolean ret = EGL_FALSE;
 769    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 770
 771    /* In the case where the application calls eglMakeCurrent(context1),
 772     * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
 773     * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
 774     * initialized, as we need it to be able to free context1 correctly.
 775     *
 776     * It would probably be safest to forcibly release the display with
 777     * dri2_display_release, to make sure the display is reinitialized correctly.
 778     * However, the EGL spec states that we need to keep a reference to the
 779     * current context (so we cannot call dri2_make_current(NULL)), and therefore
 780     * we would leak context1 as we would be missing the old display connection
 781     * to free it up correctly.
 782     */
 783    if (dri2_dpy) {
 784       dri2_dpy->ref_count++;
 785       return EGL_TRUE;
 786    }
 787
 788    /* not until swrast_dri is supported */
 789    if (disp->Options.UseFallback)
 790       return EGL_FALSE;
 791
 792    /* Nothing to initialize for a test only display */
 793    if (disp->Options.TestOnly)
 794       return EGL_TRUE;
 795
 796    switch (disp->Platform) {
 797 #ifdef HAVE_SURFACELESS_PLATFORM
 798    case _EGL_PLATFORM_SURFACELESS:
 799       ret = dri2_initialize_surfaceless(drv, disp);
 800       break;
 801 #endif
 802 #ifdef HAVE_X11_PLATFORM
 803    case _EGL_PLATFORM_X11:
 804       ret = dri2_initialize_x11(drv, disp);
 805       break;
 806 #endif
 807 #ifdef HAVE_DRM_PLATFORM
 808    case _EGL_PLATFORM_DRM:
 809       ret = dri2_initialize_drm(drv, disp);
 810       break;
 811 #endif
 812 #ifdef HAVE_WAYLAND_PLATFORM
 813    case _EGL_PLATFORM_WAYLAND:
 814       ret = dri2_initialize_wayland(drv, disp);
 815       break;
 816 #endif
 817 #ifdef HAVE_ANDROID_PLATFORM
 818    case _EGL_PLATFORM_ANDROID:
 819       ret = dri2_initialize_android(drv, disp);
 820       break;
 821 #endif
 822    default:
 823       _eglLog(_EGL_WARNING, "No EGL platform enabled.");
 824       return EGL_FALSE;
 825    }
 826
 827    if (ret) {
 828       dri2_dpy = dri2_egl_display(disp);
 829
 830       if (!dri2_dpy) {
 831          return EGL_FALSE;
 832       }
 833
 834       dri2_dpy->ref_count++;
 835    }
 836
 837    return ret;
 838 }
 839
 840 /**
 841  * Decrement display reference count, and free up display if necessary.
 842  */
 843 static void
 844 dri2_display_release(_EGLDisplay *disp) {
 845    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 846    unsigned i;
 847
 848    assert(dri2_dpy->ref_count > 0);
 849    dri2_dpy->ref_count--;
 850
 851    if (dri2_dpy->ref_count > 0)
 852       return;
 853
 854    _eglCleanupDisplay(disp);
 855
 856    if (dri2_dpy->own_dri_screen)
 857       dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
 858    if (dri2_dpy->fd >= 0)
 859       close(dri2_dpy->fd);
 860    if (dri2_dpy->driver)
 861       dlclose(dri2_dpy->driver);
 862    free(dri2_dpy->device_name);
 863    free(dri2_dpy->driver_name);
 864
 865    switch (disp->Platform) {
 866 #ifdef HAVE_X11_PLATFORM
 867    case _EGL_PLATFORM_X11:
 868       if (dri2_dpy->own_device) {
 869          xcb_disconnect(dri2_dpy->conn);
 870       }
 871       break;
 872 #endif
 873 #ifdef HAVE_DRM_PLATFORM
 874    case _EGL_PLATFORM_DRM:
 875       if (dri2_dpy->own_device) {
 876          gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
 877       }
 878       break;
 879 #endif
 880 #ifdef HAVE_WAYLAND_PLATFORM
 881    case _EGL_PLATFORM_WAYLAND:
 882       if (dri2_dpy->wl_drm)
 883           wl_drm_destroy(dri2_dpy->wl_drm);
 884       if (dri2_dpy->wl_shm)
 885           wl_shm_destroy(dri2_dpy->wl_shm);
 886       wl_registry_destroy(dri2_dpy->wl_registry);
 887       wl_event_queue_destroy(dri2_dpy->wl_queue);
 888       if (dri2_dpy->own_device) {
 889          wl_display_disconnect(dri2_dpy->wl_dpy);
 890       }
 891       break;
 892 #endif
 893    default:
 894       break;
 895    }
 896
 897    /* The drm platform does not create the screen/driver_configs but reuses
 898     * the ones from the gbm device. As such the gbm itself is responsible
 899     * for the cleanup.
 900     */
 901    if (disp->Platform != _EGL_PLATFORM_DRM) {
 902       for (i = 0; dri2_dpy->driver_configs[i]; i++)
 903          free((__DRIconfig *) dri2_dpy->driver_configs[i]);
 904       free(dri2_dpy->driver_configs);
 905    }
 906    free(dri2_dpy);
 907    disp->DriverData = NULL;
 908 }
 909
 910 /**
 911  * Called via eglTerminate(), drv->API.Terminate().
 912  *
 913  * This must be guaranteed to be called exactly once, even if eglTerminate is
 914  * called many times (without a eglInitialize in between).
 915  */
 916 static EGLBoolean
 917 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
 918 {
 919    /* Release all non-current Context/Surfaces. */
 920    _eglReleaseDisplayResources(drv, disp);
 921
 922    dri2_display_release(disp);
 923
 924    return EGL_TRUE;
 925 }
 926
 927 /**
 928  * Set the error code after a call to
 929  * dri2_egl_display::dri2::createContextAttribs.
 930  */
 931 static void
 932 dri2_create_context_attribs_error(int dri_error)
 933 {
 934    EGLint egl_error;
 935
 936    switch (dri_error) {
 937    case __DRI_CTX_ERROR_SUCCESS:
 938       return;
 939
 940    case __DRI_CTX_ERROR_NO_MEMORY:
 941       egl_error = EGL_BAD_ALLOC;
 942       break;
 943
 944   /* From the EGL_KHR_create_context spec, section "Errors":
 945    *
 946    *   * If <config> does not support a client API context compatible
 947    *     with the requested API major and minor version, [...] context flags,
 948    *     and context reset notification behavior (for client API types where
 949    *     these attributes are supported), then an EGL_BAD_MATCH error is
 950    *     generated.
 951    *
 952    *   * If an OpenGL ES context is requested and the values for
 953    *     attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
 954    *     EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
 955    *     is not defined, than an EGL_BAD_MATCH error is generated.
 956    *
 957    *   * If an OpenGL context is requested, the requested version is
 958    *     greater than 3.2, and the value for attribute
 959    *     EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
 960    *     bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
 961    *     EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
 962    *     one of these bits set; or if the implementation does not support
 963    *     the requested profile, then an EGL_BAD_MATCH error is generated.
 964    */
 965    case __DRI_CTX_ERROR_BAD_API:
 966    case __DRI_CTX_ERROR_BAD_VERSION:
 967    case __DRI_CTX_ERROR_BAD_FLAG:
 968       egl_error = EGL_BAD_MATCH;
 969       break;
 970
 971   /* From the EGL_KHR_create_context spec, section "Errors":
 972    *
 973    *   * If an attribute name or attribute value in <attrib_list> is not
 974    *     recognized (including unrecognized bits in bitmask attributes),
 975    *     then an EGL_BAD_ATTRIBUTE error is generated."
 976    */
 977    case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
 978    case __DRI_CTX_ERROR_UNKNOWN_FLAG:
 979       egl_error = EGL_BAD_ATTRIBUTE;
 980       break;
 981
 982    default:
 983       assert(0);
 984       egl_error = EGL_BAD_MATCH;
 985       break;
 986    }
 987
 988    _eglError(egl_error, "dri2_create_context");
 989 }
 990
 991 static bool
 992 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
 993                           struct dri2_egl_display *dri2_dpy,
 994                           uint32_t *ctx_attribs,
 995                           unsigned *num_attribs)
 996 {
 997    int pos = 0;
 998
 999    assert(*num_attribs >= 8);
1000
1001    ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1002    ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1003    ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1004    ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1005
1006    if (dri2_ctx->base.Flags != 0) {
1007       /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1008        * extension, don't even try to send it the robust-access flag.
1009        * It may explode.  Instead, generate the required EGL error here.
1010        */
1011       if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1012             && !dri2_dpy->robustness) {
1013          _eglError(EGL_BAD_MATCH, "eglCreateContext");
1014          return false;
1015       }
1016
1017       ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1018       ctx_attribs[pos++] = dri2_ctx->base.Flags;
1019    }
1020
1021    if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1022       /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1023        * extension, don't even try to send it a reset strategy.  It may
1024        * explode.  Instead, generate the required EGL error here.
1025        */
1026       if (!dri2_dpy->robustness) {
1027          _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1028          return false;
1029       }
1030
1031       ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1032       ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1033    }
1034
1035    *num_attribs = pos;
1036
1037    return true;
1038 }
1039
1040 /**
1041  * Called via eglCreateContext(), drv->API.CreateContext().
1042  */
1043 static _EGLContext *
1044 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1045                     _EGLContext *share_list, const EGLint *attrib_list)
1046 {
1047    struct dri2_egl_context *dri2_ctx;
1048    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1049    struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1050    __DRIcontext *shared =
1051       dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1052    struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1053    const __DRIconfig *dri_config;
1054    int api;
1055
1056    (void) drv;
1057
1058    dri2_ctx = malloc(sizeof *dri2_ctx);
1059    if (!dri2_ctx) {
1060       _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1061       return NULL;
1062    }
1063
1064    if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1065       goto cleanup;
1066
1067    switch (dri2_ctx->base.ClientAPI) {
1068    case EGL_OPENGL_ES_API:
1069       switch (dri2_ctx->base.ClientMajorVersion) {
1070       case 1:
1071          api = __DRI_API_GLES;
1072          break;
1073       case 2:
1074          api = __DRI_API_GLES2;
1075          break;
1076       case 3:
1077          api = __DRI_API_GLES3;
1078          break;
1079       default:
1080          _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1081          free(dri2_ctx);
1082          return NULL;
1083       }
1084       break;
1085    case EGL_OPENGL_API:
1086       if ((dri2_ctx->base.ClientMajorVersion >= 4
1087            || (dri2_ctx->base.ClientMajorVersion == 3
1088                && dri2_ctx->base.ClientMinorVersion >= 2))
1089           && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1090          api = __DRI_API_OPENGL_CORE;
1091       else
1092          api = __DRI_API_OPENGL;
1093       break;
1094    default:
1095       _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1096       free(dri2_ctx);
1097       return NULL;
1098    }
1099
1100    if (conf != NULL) {
1101       /* The config chosen here isn't necessarily
1102        * used for surfaces later.
1103        * A pixmap surface will use the single config.
1104        * This opportunity depends on disabling the
1105        * doubleBufferMode check in
1106        * src/mesa/main/context.c:check_compatible()
1107        */
1108       if (dri2_config->dri_double_config[0])
1109          dri_config = dri2_config->dri_double_config[0];
1110       else
1111          dri_config = dri2_config->dri_single_config[0];
1112
1113       /* EGL_WINDOW_BIT is set only when there is a dri_double_config.  This
1114        * makes sure the back buffer will always be used.
1115        */
1116       if (conf->SurfaceType & EGL_WINDOW_BIT)
1117          dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1118    }
1119    else
1120       dri_config = NULL;
1121
1122    if (dri2_dpy->image_driver) {
1123       unsigned error;
1124       unsigned num_attribs = 8;
1125       uint32_t ctx_attribs[8];
1126
1127       if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1128                                         &num_attribs))
1129          goto cleanup;
1130
1131       dri2_ctx->dri_context =
1132          dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1133                                                       api,
1134                                                       dri_config,
1135                                                       shared,
1136                                                       num_attribs / 2,
1137                                                       ctx_attribs,
1138                                                       & error,
1139                                                       dri2_ctx);
1140       dri2_create_context_attribs_error(error);
1141    } else if (dri2_dpy->dri2) {
1142       if (dri2_dpy->dri2->base.version >= 3) {
1143          unsigned error;
1144          unsigned num_attribs = 8;
1145          uint32_t ctx_attribs[8];
1146
1147          if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1148                                         &num_attribs))
1149             goto cleanup;
1150
1151          dri2_ctx->dri_context =
1152             dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1153                                                  api,
1154                                                  dri_config,
1155                                                  shared,
1156                                                  num_attribs / 2,
1157                                                  ctx_attribs,
1158                                                  & error,
1159                                                  dri2_ctx);
1160          dri2_create_context_attribs_error(error);
1161       } else {
1162          dri2_ctx->dri_context =
1163             dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1164                                                    api,
1165                                                    dri_config,
1166                                                    shared,
1167                                                    dri2_ctx);
1168       }
1169    } else {
1170       assert(dri2_dpy->swrast);
1171       if (dri2_dpy->swrast->base.version >= 3) {
1172          unsigned error;
1173          unsigned num_attribs = 8;
1174          uint32_t ctx_attribs[8];
1175
1176          if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1177                                         &num_attribs))
1178             goto cleanup;
1179
1180          dri2_ctx->dri_context =
1181             dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1182                                                    api,
1183                                                    dri_config,
1184                                                    shared,
1185                                                    num_attribs / 2,
1186                                                    ctx_attribs,
1187                                                    & error,
1188                                                    dri2_ctx);
1189          dri2_create_context_attribs_error(error);
1190       } else {
1191          dri2_ctx->dri_context =
1192             dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1193                                                      api,
1194                                                      dri_config,
1195                                                      shared,
1196                                                      dri2_ctx);
1197       }
1198    }
1199
1200    if (!dri2_ctx->dri_context)
1201       goto cleanup;
1202
1203    return &dri2_ctx->base;
1204
1205  cleanup:
1206    free(dri2_ctx);
1207    return NULL;
1208 }
1209
1210 /**
1211  * Called via eglDestroyContext(), drv->API.DestroyContext().
1212  */
1213 static EGLBoolean
1214 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1215 {
1216    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1217    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1218
1219    if (_eglPutContext(ctx)) {
1220       dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1221       free(dri2_ctx);
1222    }
1223
1224    return EGL_TRUE;
1225 }
1226
1227 /**
1228  * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1229  */
1230 static EGLBoolean
1231 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1232                   _EGLSurface *rsurf, _EGLContext *ctx)
1233 {
1234    struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1235    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1236    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1237    _EGLContext *old_ctx;
1238    _EGLSurface *old_dsurf, *old_rsurf;
1239    _EGLSurface *tmp_dsurf, *tmp_rsurf;
1240    __DRIdrawable *ddraw, *rdraw;
1241    __DRIcontext *cctx;
1242    EGLBoolean unbind;
1243
1244    if (!dri2_dpy)
1245       return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1246
1247    /* make new bindings */
1248    if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1249       /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1250       return EGL_FALSE;
1251    }
1252
1253    /* flush before context switch */
1254    if (old_ctx && dri2_drv->glFlush)
1255       dri2_drv->glFlush();
1256
1257    ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1258    rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1259    cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1260
1261    if (old_ctx) {
1262       __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1263       dri2_dpy->core->unbindContext(old_cctx);
1264    }
1265
1266    unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1267
1268    if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1269       if (old_dsurf)
1270          drv->API.DestroySurface(drv, disp, old_dsurf);
1271       if (old_rsurf)
1272          drv->API.DestroySurface(drv, disp, old_rsurf);
1273
1274       if (!unbind)
1275          dri2_dpy->ref_count++;
1276       if (old_ctx) {
1277          EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
1278          drv->API.DestroyContext(drv, disp, old_ctx);
1279          dri2_display_release(old_disp);
1280       }
1281
1282       return EGL_TRUE;
1283    } else {
1284       /* undo the previous _eglBindContext */
1285       _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1286       assert(&dri2_ctx->base == ctx &&
1287              tmp_dsurf == dsurf &&
1288              tmp_rsurf == rsurf);
1289
1290       _eglPutSurface(dsurf);
1291       _eglPutSurface(rsurf);
1292       _eglPutContext(ctx);
1293
1294       _eglPutSurface(old_dsurf);
1295       _eglPutSurface(old_rsurf);
1296       _eglPutContext(old_ctx);
1297
1298       /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1299        * setting the error to EGL_BAD_MATCH is surely better than leaving it
1300        * as EGL_SUCCESS.
1301        */
1302       return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1303    }
1304 }
1305
1306 __DRIdrawable *
1307 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1308 {
1309    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1310
1311    return dri2_surf->dri_drawable;
1312 }
1313
1314 /*
1315  * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1316  */
1317 static _EGLProc
1318 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1319 {
1320    struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1321
1322    return dri2_drv->get_proc_address(procname);
1323 }
1324
1325 static _EGLSurface*
1326 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1327                            _EGLConfig *conf, void *native_window,
1328                            const EGLint *attrib_list)
1329 {
1330    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1331    return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1332                                                 attrib_list);
1333 }
1334
1335 static _EGLSurface*
1336 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1337                            _EGLConfig *conf, void *native_pixmap,
1338                            const EGLint *attrib_list)
1339 {
1340    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1341    return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1342                                                 attrib_list);
1343 }
1344
1345 static _EGLSurface*
1346 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1347                            _EGLConfig *conf, const EGLint *attrib_list)
1348 {
1349    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1350    return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1351 }
1352
1353 static EGLBoolean
1354 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1355 {
1356    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1357    return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1358 }
1359
1360 static EGLBoolean
1361 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1362                    EGLint interval)
1363 {
1364    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1365    return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1366 }
1367
1368 /**
1369  * Asks the client API to flush any rendering to the drawable so that we can
1370  * do our swapbuffers.
1371  */
1372 void
1373 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1374 {
1375    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1376    __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1377
1378    if (dri2_dpy->flush) {
1379       if (dri2_dpy->flush->base.version >= 4) {
1380          /* We know there's a current context because:
1381           *
1382           *     "If surface is not bound to the calling thread’s current
1383           *      context, an EGL_BAD_SURFACE error is generated."
1384          */
1385          _EGLContext *ctx = _eglGetCurrentContext();
1386          struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1387
1388          /* From the EGL 1.4 spec (page 52):
1389           *
1390           *     "The contents of ancillary buffers are always undefined
1391           *      after calling eglSwapBuffers."
1392           */
1393          dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1394                                            dri_drawable,
1395                                            __DRI2_FLUSH_DRAWABLE |
1396                                            __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1397                                            __DRI2_THROTTLE_SWAPBUFFER);
1398       } else {
1399          dri2_dpy->flush->flush(dri_drawable);
1400       }
1401    }
1402 }
1403
1404 static EGLBoolean
1405 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1406 {
1407    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1408    return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1409 }
1410
1411 static EGLBoolean
1412 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1413                               _EGLSurface *surf,
1414                               const EGLint *rects, EGLint n_rects)
1415 {
1416    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1417    return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1418                                                    rects, n_rects);
1419 }
1420
1421 static EGLBoolean
1422 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1423                          EGLint numRects, const EGLint *rects)
1424 {
1425    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1426    return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1427 }
1428
1429 static EGLBoolean
1430 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1431                      EGLint x, EGLint y, EGLint width, EGLint height)
1432 {
1433    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1434    return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1435 }
1436
1437 static EGLBoolean
1438 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1439                   void *native_pixmap_target)
1440 {
1441    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1442    return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1443 }
1444
1445 static EGLint
1446 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1447 {
1448    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1449    return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1450 }
1451
1452 static EGLBoolean
1453 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1454 {
1455    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1456    _EGLSurface *surf = ctx->DrawSurface;
1457    __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1458
1459    (void) drv;
1460
1461    /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1462     * we need to copy fake to real here.*/
1463
1464    if (dri2_dpy->flush != NULL)
1465       dri2_dpy->flush->flush(dri_drawable);
1466
1467    return EGL_TRUE;
1468 }
1469
1470 static EGLBoolean
1471 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1472 {
1473    (void) drv;
1474    (void) disp;
1475
1476    if (engine != EGL_CORE_NATIVE_ENGINE)
1477       return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1478    /* glXWaitX(); */
1479
1480    return EGL_TRUE;
1481 }
1482
1483 static EGLBoolean
1484 dri2_bind_tex_image(_EGLDriver *drv,
1485                     _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1486 {
1487    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1488    struct dri2_egl_context *dri2_ctx;
1489    _EGLContext *ctx;
1490    GLint format, target;
1491    __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1492
1493    ctx = _eglGetCurrentContext();
1494    dri2_ctx = dri2_egl_context(ctx);
1495
1496    if (!_eglBindTexImage(drv, disp, surf, buffer))
1497       return EGL_FALSE;
1498
1499    switch (surf->TextureFormat) {
1500    case EGL_TEXTURE_RGB:
1501       format = __DRI_TEXTURE_FORMAT_RGB;
1502       break;
1503    case EGL_TEXTURE_RGBA:
1504       format = __DRI_TEXTURE_FORMAT_RGBA;
1505       break;
1506    default:
1507       assert(!"Unexpected texture format in dri2_bind_tex_image()");
1508       format = __DRI_TEXTURE_FORMAT_RGBA;
1509    }
1510
1511    switch (surf->TextureTarget) {
1512    case EGL_TEXTURE_2D:
1513       target = GL_TEXTURE_2D;
1514       break;
1515    default:
1516       target = GL_TEXTURE_2D;
1517       assert(!"Unexpected texture target in dri2_bind_tex_image()");
1518    }
1519
1520    (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1521                                           target, format,
1522                                           dri_drawable);
1523
1524    return EGL_TRUE;
1525 }
1526
1527 static EGLBoolean
1528 dri2_release_tex_image(_EGLDriver *drv,
1529                        _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1530 {
1531    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1532    struct dri2_egl_context *dri2_ctx;
1533    _EGLContext *ctx;
1534    GLint  target;
1535    __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1536
1537    ctx = _eglGetCurrentContext();
1538    dri2_ctx = dri2_egl_context(ctx);
1539
1540    if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1541       return EGL_FALSE;
1542
1543    switch (surf->TextureTarget) {
1544    case EGL_TEXTURE_2D:
1545       target = GL_TEXTURE_2D;
1546       break;
1547    default:
1548       assert(0);
1549    }
1550
1551    if (dri2_dpy->tex_buffer->base.version >= 3 &&
1552        dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1553       (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1554                                                 target,
1555                                                 dri_drawable);
1556    }
1557
1558    return EGL_TRUE;
1559 }
1560
1561 static _EGLImage*
1562 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1563                   EGLenum target, EGLClientBuffer buffer,
1564                   const EGLint *attr_list)
1565 {
1566    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1567    return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1568                                        attr_list);
1569 }
1570
1571 static _EGLImage *
1572 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1573 {
1574    struct dri2_egl_image *dri2_img;
1575
1576    if (dri_image == NULL) {
1577       _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1578       return NULL;
1579    }
1580
1581    dri2_img = malloc(sizeof *dri2_img);
1582    if (!dri2_img) {
1583       _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1584       return NULL;
1585    }
1586
1587    if (!_eglInitImage(&dri2_img->base, disp)) {
1588       free(dri2_img);
1589       return NULL;
1590    }
1591
1592    dri2_img->dri_image = dri_image;
1593
1594    return &dri2_img->base;
1595 }
1596
1597 static _EGLImage *
1598 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1599                                    EGLClientBuffer buffer,
1600                                    const EGLint *attr_list)
1601 {
1602    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1603    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1604    GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1605    __DRIimage *dri_image;
1606
1607    if (renderbuffer == 0) {
1608       _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1609       return EGL_NO_IMAGE_KHR;
1610    }
1611
1612    dri_image =
1613       dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1614                                                    renderbuffer, NULL);
1615
1616    return dri2_create_image_from_dri(disp, dri_image);
1617 }
1618
1619 #ifdef HAVE_WAYLAND_PLATFORM
1620
1621 /* This structure describes how a wl_buffer maps to one or more
1622  * __DRIimages.  A wl_drm_buffer stores the wl_drm format code and the
1623  * offsets and strides of the planes in the buffer.  This table maps a
1624  * wl_drm format code to a description of the planes in the buffer
1625  * that lets us create a __DRIimage for each of the planes. */
1626
1627 static const struct wl_drm_components_descriptor {
1628    uint32_t dri_components;
1629    EGLint components;
1630    int nplanes;
1631 } wl_drm_components[] = {
1632    { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1633    { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1634    { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1635    { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1636    { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1637 };
1638
1639 static _EGLImage *
1640 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1641                                     EGLClientBuffer _buffer,
1642                                     const EGLint *attr_list)
1643 {
1644    struct wl_drm_buffer *buffer;
1645    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1646    const struct wl_drm_components_descriptor *f;
1647    __DRIimage *dri_image;
1648    _EGLImageAttribs attrs;
1649    EGLint err;
1650    int32_t plane;
1651
1652    buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1653                                    (struct wl_resource *) _buffer);
1654    if (!buffer)
1655        return NULL;
1656
1657    err = _eglParseImageAttribList(&attrs, disp, attr_list);
1658    plane = attrs.PlaneWL;
1659    if (err != EGL_SUCCESS) {
1660       _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1661       return NULL;
1662    }
1663
1664    f = buffer->driver_format;
1665    if (plane < 0 || plane >= f->nplanes) {
1666       _eglError(EGL_BAD_PARAMETER,
1667                 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1668       return NULL;
1669    }
1670
1671    dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1672
1673    if (dri_image == NULL) {
1674       _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1675       return NULL;
1676    }
1677
1678    return dri2_create_image_from_dri(disp, dri_image);
1679 }
1680 #endif
1681
1682 static EGLBoolean
1683 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1684                               EGLuint64KHR *ust, EGLuint64KHR *msc,
1685                               EGLuint64KHR *sbc)
1686 {
1687    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1688    return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1689 }
1690
1691 /**
1692  * Set the error code after a call to
1693  * dri2_egl_image::dri_image::createImageFromTexture.
1694  */
1695 static void
1696 dri2_create_image_khr_texture_error(int dri_error)
1697 {
1698    EGLint egl_error;
1699
1700    switch (dri_error) {
1701    case __DRI_IMAGE_ERROR_SUCCESS:
1702       return;
1703
1704    case __DRI_IMAGE_ERROR_BAD_ALLOC:
1705       egl_error = EGL_BAD_ALLOC;
1706       break;
1707
1708    case __DRI_IMAGE_ERROR_BAD_MATCH:
1709       egl_error = EGL_BAD_MATCH;
1710       break;
1711
1712    case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1713       egl_error = EGL_BAD_PARAMETER;
1714       break;
1715
1716    case __DRI_IMAGE_ERROR_BAD_ACCESS:
1717       egl_error = EGL_BAD_ACCESS;
1718       break;
1719
1720    default:
1721       assert(0);
1722       egl_error = EGL_BAD_MATCH;
1723       break;
1724    }
1725
1726    _eglError(egl_error, "dri2_create_image_khr_texture");
1727 }
1728
1729 static _EGLImage *
1730 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1731                                    EGLenum target,
1732                                    EGLClientBuffer buffer,
1733                                    const EGLint *attr_list)
1734 {
1735    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1736    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1737    struct dri2_egl_image *dri2_img;
1738    GLuint texture = (GLuint) (uintptr_t) buffer;
1739    _EGLImageAttribs attrs;
1740    GLuint depth;
1741    GLenum gl_target;
1742    unsigned error;
1743
1744    if (texture == 0) {
1745       _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1746       return EGL_NO_IMAGE_KHR;
1747    }
1748
1749    if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1750       return EGL_NO_IMAGE_KHR;
1751
1752    switch (target) {
1753    case EGL_GL_TEXTURE_2D_KHR:
1754       depth = 0;
1755       gl_target = GL_TEXTURE_2D;
1756       break;
1757    case EGL_GL_TEXTURE_3D_KHR:
1758       if (disp->Extensions.KHR_gl_texture_3D_image) {
1759          depth = attrs.GLTextureZOffset;
1760          gl_target = GL_TEXTURE_3D;
1761          break;
1762       }
1763       else {
1764          _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1765          return EGL_NO_IMAGE_KHR;
1766       }
1767    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1768    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1769    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1770    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1771    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1772    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1773       depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1774       gl_target = GL_TEXTURE_CUBE_MAP;
1775       break;
1776    default:
1777       _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1778       return EGL_NO_IMAGE_KHR;
1779    }
1780
1781    dri2_img = malloc(sizeof *dri2_img);
1782    if (!dri2_img) {
1783       _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1784       return EGL_NO_IMAGE_KHR;
1785    }
1786
1787    if (!_eglInitImage(&dri2_img->base, disp)) {
1788       _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1789       free(dri2_img);
1790       return EGL_NO_IMAGE_KHR;
1791    }
1792
1793    dri2_img->dri_image =
1794       dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1795                                               gl_target,
1796                                               texture,
1797                                               depth,
1798                                               attrs.GLTextureLevel,
1799                                               &error,
1800                                               dri2_img);
1801    dri2_create_image_khr_texture_error(error);
1802
1803    if (!dri2_img->dri_image) {
1804       free(dri2_img);
1805       return EGL_NO_IMAGE_KHR;
1806    }
1807    return &dri2_img->base;
1808 }
1809
1810 static struct wl_buffer*
1811 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1812                                       _EGLImage *img)
1813 {
1814    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1815    return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1816 }
1817
1818 #ifdef HAVE_LIBDRM
1819 static _EGLImage *
1820 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1821                                   EGLClientBuffer buffer, const EGLint *attr_list)
1822 {
1823    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1824    EGLint format, name, pitch, err;
1825    _EGLImageAttribs attrs;
1826    __DRIimage *dri_image;
1827
1828    name = (EGLint) (uintptr_t) buffer;
1829
1830    err = _eglParseImageAttribList(&attrs, disp, attr_list);
1831    if (err != EGL_SUCCESS)
1832       return NULL;
1833
1834    if (attrs.Width <= 0 || attrs.Height <= 0 ||
1835        attrs.DRMBufferStrideMESA <= 0) {
1836       _eglError(EGL_BAD_PARAMETER,
1837                 "bad width, height or stride");
1838       return NULL;
1839    }
1840
1841    switch (attrs.DRMBufferFormatMESA) {
1842    case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1843       format = __DRI_IMAGE_FORMAT_ARGB8888;
1844       pitch = attrs.DRMBufferStrideMESA;
1845       break;
1846    default:
1847       _eglError(EGL_BAD_PARAMETER,
1848                 "dri2_create_image_khr: unsupported pixmap depth");
1849       return NULL;
1850    }
1851
1852    dri_image =
1853       dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1854                                            attrs.Width,
1855                                            attrs.Height,
1856                                            format,
1857                                            name,
1858                                            pitch,
1859                                            NULL);
1860
1861    return dri2_create_image_from_dri(disp, dri_image);
1862 }
1863
1864 static EGLBoolean
1865 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1866 {
1867    unsigned i;
1868
1869    /**
1870      * The spec says:
1871      *
1872      * "Required attributes and their values are as follows:
1873      *
1874      *  * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1875      *
1876      *  * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1877      *    by drm_fourcc.h and used as the pixel_format parameter of the
1878      *    drm_mode_fb_cmd2 ioctl."
1879      *
1880      * and
1881      *
1882      * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1883      *    incomplete, EGL_BAD_PARAMETER is generated."
1884      */
1885    if (attrs->Width <= 0 || attrs->Height <= 0 ||
1886        !attrs->DMABufFourCC.IsPresent) {
1887       _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1888       return EGL_FALSE;
1889    }
1890
1891    /**
1892     * Also:
1893     *
1894     * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1895     *  specified for a plane's pitch or offset isn't supported by EGL,
1896     *  EGL_BAD_ACCESS is generated."
1897     */
1898    for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1899       if (attrs->DMABufPlanePitches[i].IsPresent &&
1900           attrs->DMABufPlanePitches[i].Value <= 0) {
1901          _eglError(EGL_BAD_ACCESS, "invalid pitch");
1902          return EGL_FALSE;
1903       }
1904    }
1905
1906    return EGL_TRUE;
1907 }
1908
1909 /* Returns the total number of file descriptors. Zero indicates an error. */
1910 static unsigned
1911 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1912 {
1913    unsigned i, plane_n;
1914
1915    switch (attrs->DMABufFourCC.Value) {
1916    case DRM_FORMAT_R8:
1917    case DRM_FORMAT_RG88:
1918    case DRM_FORMAT_GR88:
1919    case DRM_FORMAT_RGB332:
1920    case DRM_FORMAT_BGR233:
1921    case DRM_FORMAT_XRGB4444:
1922    case DRM_FORMAT_XBGR4444:
1923    case DRM_FORMAT_RGBX4444:
1924    case DRM_FORMAT_BGRX4444:
1925    case DRM_FORMAT_ARGB4444:
1926    case DRM_FORMAT_ABGR4444:
1927    case DRM_FORMAT_RGBA4444:
1928    case DRM_FORMAT_BGRA4444:
1929    case DRM_FORMAT_XRGB1555:
1930    case DRM_FORMAT_XBGR1555:
1931    case DRM_FORMAT_RGBX5551:
1932    case DRM_FORMAT_BGRX5551:
1933    case DRM_FORMAT_ARGB1555:
1934    case DRM_FORMAT_ABGR1555:
1935    case DRM_FORMAT_RGBA5551:
1936    case DRM_FORMAT_BGRA5551:
1937    case DRM_FORMAT_RGB565:
1938    case DRM_FORMAT_BGR565:
1939    case DRM_FORMAT_RGB888:
1940    case DRM_FORMAT_BGR888:
1941    case DRM_FORMAT_XRGB8888:
1942    case DRM_FORMAT_XBGR8888:
1943    case DRM_FORMAT_RGBX8888:
1944    case DRM_FORMAT_BGRX8888:
1945    case DRM_FORMAT_ARGB8888:
1946    case DRM_FORMAT_ABGR8888:
1947    case DRM_FORMAT_RGBA8888:
1948    case DRM_FORMAT_BGRA8888:
1949    case DRM_FORMAT_XRGB2101010:
1950    case DRM_FORMAT_XBGR2101010:
1951    case DRM_FORMAT_RGBX1010102:
1952    case DRM_FORMAT_BGRX1010102:
1953    case DRM_FORMAT_ARGB2101010:
1954    case DRM_FORMAT_ABGR2101010:
1955    case DRM_FORMAT_RGBA1010102:
1956    case DRM_FORMAT_BGRA1010102:
1957    case DRM_FORMAT_YUYV:
1958    case DRM_FORMAT_YVYU:
1959    case DRM_FORMAT_UYVY:
1960    case DRM_FORMAT_VYUY:
1961       plane_n = 1;
1962       break;
1963    case DRM_FORMAT_NV12:
1964    case DRM_FORMAT_NV21:
1965    case DRM_FORMAT_NV16:
1966    case DRM_FORMAT_NV61:
1967       plane_n = 2;
1968       break;
1969    case DRM_FORMAT_YUV410:
1970    case DRM_FORMAT_YVU410:
1971    case DRM_FORMAT_YUV411:
1972    case DRM_FORMAT_YVU411:
1973    case DRM_FORMAT_YUV420:
1974    case DRM_FORMAT_YVU420:
1975    case DRM_FORMAT_YUV422:
1976    case DRM_FORMAT_YVU422:
1977    case DRM_FORMAT_YUV444:
1978    case DRM_FORMAT_YVU444:
1979       plane_n = 3;
1980       break;
1981    default:
1982       _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
1983       return 0;
1984    }
1985
1986    /**
1987      * The spec says:
1988      *
1989      * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1990      *    incomplete, EGL_BAD_PARAMETER is generated."
1991      */
1992    for (i = 0; i < plane_n; ++i) {
1993       if (!attrs->DMABufPlaneFds[i].IsPresent ||
1994           !attrs->DMABufPlaneOffsets[i].IsPresent ||
1995           !attrs->DMABufPlanePitches[i].IsPresent) {
1996          _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
1997          return 0;
1998       }
1999    }
2000
2001    /**
2002     * The spec also says:
2003     *
2004     * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2005     *  attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2006     *  generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2007     *  attributes are specified."
2008     */
2009    for (i = plane_n; i < 3; ++i) {
2010       if (attrs->DMABufPlaneFds[i].IsPresent ||
2011           attrs->DMABufPlaneOffsets[i].IsPresent ||
2012           attrs->DMABufPlanePitches[i].IsPresent) {
2013          _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2014          return 0;
2015       }
2016    }
2017
2018    return plane_n;
2019 }
2020
2021 /**
2022  * The spec says:
2023  *
2024  * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2025  *  EGL will take a reference to the dma_buf(s) which it will release at any
2026  *  time while the EGLDisplay is initialized. It is the responsibility of the
2027  *  application to close the dma_buf file descriptors."
2028  *
2029  * Therefore we must never close or otherwise modify the file descriptors.
2030  */
2031 _EGLImage *
2032 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2033                           EGLClientBuffer buffer, const EGLint *attr_list)
2034 {
2035    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2036    _EGLImage *res;
2037    EGLint err;
2038    _EGLImageAttribs attrs;
2039    __DRIimage *dri_image;
2040    unsigned num_fds;
2041    unsigned i;
2042    int fds[3];
2043    int pitches[3];
2044    int offsets[3];
2045    unsigned error;
2046
2047    /**
2048     * The spec says:
2049     *
2050     * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2051     *     error EGL_BAD_PARAMETER is generated."
2052     */
2053    if (buffer != NULL) {
2054       _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2055       return NULL;
2056    }
2057
2058    err = _eglParseImageAttribList(&attrs, disp, attr_list);
2059    if (err != EGL_SUCCESS) {
2060       _eglError(err, "bad attribute");
2061       return NULL;
2062    }
2063
2064    if (!dri2_check_dma_buf_attribs(&attrs))
2065       return NULL;
2066
2067    num_fds = dri2_check_dma_buf_format(&attrs);
2068    if (!num_fds)
2069       return NULL;
2070
2071    for (i = 0; i < num_fds; ++i) {
2072       fds[i] = attrs.DMABufPlaneFds[i].Value;
2073       pitches[i] = attrs.DMABufPlanePitches[i].Value;
2074       offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2075    }
2076
2077    dri_image =
2078       dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2079          attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2080          fds, num_fds, pitches, offsets,
2081          attrs.DMABufYuvColorSpaceHint.Value,
2082          attrs.DMABufSampleRangeHint.Value,
2083          attrs.DMABufChromaHorizontalSiting.Value,
2084          attrs.DMABufChromaVerticalSiting.Value,
2085          &error,
2086          NULL);
2087    dri2_create_image_khr_texture_error(error);
2088
2089    if (!dri_image)
2090       return EGL_NO_IMAGE_KHR;
2091
2092    res = dri2_create_image_from_dri(disp, dri_image);
2093
2094    return res;
2095 }
2096 static _EGLImage *
2097 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2098                            const EGLint *attr_list)
2099 {
2100    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2101    struct dri2_egl_image *dri2_img;
2102    _EGLImageAttribs attrs;
2103    unsigned int dri_use, valid_mask;
2104    int format;
2105    EGLint err = EGL_SUCCESS;
2106
2107    (void) drv;
2108
2109    dri2_img = malloc(sizeof *dri2_img);
2110    if (!dri2_img) {
2111       _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2112       return EGL_NO_IMAGE_KHR;
2113    }
2114
2115    if (!attr_list) {
2116       err = EGL_BAD_PARAMETER;
2117       goto cleanup_img;
2118    }
2119
2120    if (!_eglInitImage(&dri2_img->base, disp)) {
2121       err = EGL_BAD_PARAMETER;
2122       goto cleanup_img;
2123    }
2124
2125    err = _eglParseImageAttribList(&attrs, disp, attr_list);
2126    if (err != EGL_SUCCESS)
2127       goto cleanup_img;
2128
2129    if (attrs.Width <= 0 || attrs.Height <= 0) {
2130       _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
2131             attrs.Width, attrs.Height);
2132       goto cleanup_img;
2133    }
2134
2135    switch (attrs.DRMBufferFormatMESA) {
2136    case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2137       format = __DRI_IMAGE_FORMAT_ARGB8888;
2138       break;
2139    default:
2140       _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
2141             attrs.DRMBufferFormatMESA);
2142       goto cleanup_img;
2143    }
2144
2145    valid_mask =
2146       EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2147       EGL_DRM_BUFFER_USE_SHARE_MESA |
2148       EGL_DRM_BUFFER_USE_CURSOR_MESA;
2149    if (attrs.DRMBufferUseMESA & ~valid_mask) {
2150       _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
2151             attrs.DRMBufferUseMESA & ~valid_mask);
2152       goto cleanup_img;
2153    }
2154
2155    dri_use = 0;
2156    if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2157       dri_use |= __DRI_IMAGE_USE_SHARE;
2158    if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2159       dri_use |= __DRI_IMAGE_USE_SCANOUT;
2160    if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2161       dri_use |= __DRI_IMAGE_USE_CURSOR;
2162
2163    dri2_img->dri_image =
2164       dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2165                                    attrs.Width, attrs.Height,
2166                                    format, dri_use, dri2_img);
2167    if (dri2_img->dri_image == NULL) {
2168       err = EGL_BAD_ALLOC;
2169       goto cleanup_img;
2170    }
2171
2172    return &dri2_img->base;
2173
2174  cleanup_img:
2175    free(dri2_img);
2176    _eglError(err, "dri2_create_drm_image_mesa");
2177
2178    return EGL_NO_IMAGE_KHR;
2179 }
2180
2181 static EGLBoolean
2182 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2183                           EGLint *name, EGLint *handle, EGLint *stride)
2184 {
2185    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2186    struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2187
2188    (void) drv;
2189
2190    if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2191                                             __DRI_IMAGE_ATTRIB_NAME, name)) {
2192       _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2193       return EGL_FALSE;
2194    }
2195
2196    if (handle)
2197       dri2_dpy->image->queryImage(dri2_img->dri_image,
2198                                   __DRI_IMAGE_ATTRIB_HANDLE, handle);
2199
2200    if (stride)
2201       dri2_dpy->image->queryImage(dri2_img->dri_image,
2202                                   __DRI_IMAGE_ATTRIB_STRIDE, stride);
2203
2204    return EGL_TRUE;
2205 }
2206
2207 static EGLBoolean
2208 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2209                                      _EGLImage *img,
2210                                      EGLint *fourcc, EGLint *nplanes,
2211                                      EGLuint64KHR *modifiers)
2212 {
2213    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2214    struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2215
2216    (void) drv;
2217
2218
2219    if (nplanes)
2220       dri2_dpy->image->queryImage(dri2_img->dri_image,
2221                                   __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2222    if (fourcc)
2223       dri2_dpy->image->queryImage(dri2_img->dri_image,
2224                                   __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2225
2226    if (modifiers)
2227       *modifiers = 0;
2228
2229    return EGL_TRUE;
2230 }
2231
2232 static EGLBoolean
2233 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2234                                int *fds, EGLint *strides, EGLint *offsets)
2235 {
2236    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2237    struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2238
2239    (void) drv;
2240
2241    /* rework later to provide multiple fds/strides/offsets */
2242    if (fds)
2243       dri2_dpy->image->queryImage(dri2_img->dri_image,
2244                                   __DRI_IMAGE_ATTRIB_FD, fds);
2245
2246    if (strides)
2247       dri2_dpy->image->queryImage(dri2_img->dri_image,
2248                                   __DRI_IMAGE_ATTRIB_STRIDE, strides);
2249
2250    if (offsets)
2251       offsets[0] = 0;
2252
2253    return EGL_TRUE;
2254 }
2255
2256 #endif
2257
2258 _EGLImage *
2259 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2260                       _EGLContext *ctx, EGLenum target,
2261                       EGLClientBuffer buffer, const EGLint *attr_list)
2262 {
2263    (void) drv;
2264
2265    switch (target) {
2266    case EGL_GL_TEXTURE_2D_KHR:
2267    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2268    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2269    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2270    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2271    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2272    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2273       return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2274    case EGL_GL_TEXTURE_3D_KHR:
2275       if (disp->Extensions.KHR_gl_texture_3D_image) {
2276          return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2277       }
2278       else {
2279          _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2280          return EGL_NO_IMAGE_KHR;
2281       }
2282    case EGL_GL_RENDERBUFFER_KHR:
2283       return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2284 #ifdef HAVE_LIBDRM
2285    case EGL_DRM_BUFFER_MESA:
2286       return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2287    case EGL_LINUX_DMA_BUF_EXT:
2288       return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2289 #endif
2290 #ifdef HAVE_WAYLAND_PLATFORM
2291    case EGL_WAYLAND_BUFFER_WL:
2292       return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2293 #endif
2294    default:
2295       _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2296       return EGL_NO_IMAGE_KHR;
2297    }
2298 }
2299
2300 static EGLBoolean
2301 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2302 {
2303    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2304    struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2305
2306    (void) drv;
2307
2308    dri2_dpy->image->destroyImage(dri2_img->dri_image);
2309    free(dri2_img);
2310
2311    return EGL_TRUE;
2312 }
2313
2314 #ifdef HAVE_WAYLAND_PLATFORM
2315
2316 static void
2317 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2318                          struct wl_drm_buffer *buffer)
2319 {
2320    _EGLDisplay *disp = user_data;
2321    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2322    __DRIimage *img;
2323    int i, dri_components = 0;
2324
2325    if (fd == -1)
2326       img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2327                                                   buffer->width,
2328                                                   buffer->height,
2329                                                   buffer->format,
2330                                                   (int*)&name, 1,
2331                                                   buffer->stride,
2332                                                   buffer->offset,
2333                                                   NULL);
2334    else
2335       img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2336                                                 buffer->width,
2337                                                 buffer->height,
2338                                                 buffer->format,
2339                                                 &fd, 1,
2340                                                 buffer->stride,
2341                                                 buffer->offset,
2342                                                 NULL);
2343
2344    if (img == NULL)
2345       return;
2346
2347    dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2348
2349    buffer->driver_format = NULL;
2350    for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2351       if (wl_drm_components[i].dri_components == dri_components)
2352          buffer->driver_format = &wl_drm_components[i];
2353
2354    if (buffer->driver_format == NULL)
2355       dri2_dpy->image->destroyImage(img);
2356    else
2357       buffer->driver_buffer = img;
2358 }
2359
2360 static void
2361 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2362 {
2363    _EGLDisplay *disp = user_data;
2364    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2365
2366    dri2_dpy->image->destroyImage(buffer->driver_buffer);
2367 }
2368
2369 static struct wayland_drm_callbacks wl_drm_callbacks = {
2370         .authenticate = NULL,
2371         .reference_buffer = dri2_wl_reference_buffer,
2372         .release_buffer = dri2_wl_release_buffer
2373 };
2374
2375 static EGLBoolean
2376 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2377                              struct wl_display *wl_dpy)
2378 {
2379    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2380    int flags = 0;
2381    uint64_t cap;
2382
2383    (void) drv;
2384
2385    if (dri2_dpy->wl_server_drm)
2386            return EGL_FALSE;
2387
2388    wl_drm_callbacks.authenticate =
2389       (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2390
2391    if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2392        cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2393        dri2_dpy->image->base.version >= 7 &&
2394        dri2_dpy->image->createImageFromFds != NULL)
2395       flags |= WAYLAND_DRM_PRIME;
2396
2397    dri2_dpy->wl_server_drm =
2398            wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2399                             &wl_drm_callbacks, disp, flags);
2400
2401    if (!dri2_dpy->wl_server_drm)
2402            return EGL_FALSE;
2403
2404 #ifdef HAVE_DRM_PLATFORM
2405    /* We have to share the wl_drm instance with gbm, so gbm can convert
2406     * wl_buffers to gbm bos. */
2407    if (dri2_dpy->gbm_dri)
2408       dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2409 #endif
2410
2411    return EGL_TRUE;
2412 }
2413
2414 static EGLBoolean
2415 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2416                                struct wl_display *wl_dpy)
2417 {
2418    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2419
2420    (void) drv;
2421
2422    if (!dri2_dpy->wl_server_drm)
2423            return EGL_FALSE;
2424
2425    wayland_drm_uninit(dri2_dpy->wl_server_drm);
2426    dri2_dpy->wl_server_drm = NULL;
2427
2428    return EGL_TRUE;
2429 }
2430
2431 static EGLBoolean
2432 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2433                              struct wl_resource *buffer_resource,
2434                              EGLint attribute, EGLint *value)
2435 {
2436    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2437    struct wl_drm_buffer *buffer;
2438    const struct wl_drm_components_descriptor *format;
2439
2440    buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2441    if (!buffer)
2442       return EGL_FALSE;
2443
2444    format = buffer->driver_format;
2445    switch (attribute) {
2446    case EGL_TEXTURE_FORMAT:
2447       *value = format->components;
2448       return EGL_TRUE;
2449    case EGL_WIDTH:
2450       *value = buffer->width;
2451       return EGL_TRUE;
2452    case EGL_HEIGHT:
2453       *value = buffer->height;
2454       return EGL_TRUE;
2455    }
2456
2457    return EGL_FALSE;
2458 }
2459 #endif
2460
2461 static void
2462 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2463 {
2464    p_atomic_inc(&sync->refcount);
2465 }
2466
2467 static void
2468 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2469                     struct dri2_egl_sync *dri2_sync)
2470 {
2471    if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2472       if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR)
2473          cnd_destroy(&dri2_sync->cond);
2474
2475       if (dri2_sync->fence)
2476          dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2477
2478       free(dri2_sync);
2479    }
2480 }
2481
2482 static _EGLSync *
2483 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2484                  EGLenum type, const EGLint *attrib_list,
2485                  const EGLAttrib *attrib_list64)
2486 {
2487    _EGLContext *ctx = _eglGetCurrentContext();
2488    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2489    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2490    struct dri2_egl_sync *dri2_sync;
2491    EGLint ret;
2492    pthread_condattr_t attr;
2493
2494    dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2495    if (!dri2_sync) {
2496       _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2497       return NULL;
2498    }
2499
2500    if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list,
2501                      attrib_list64)) {
2502       free(dri2_sync);
2503       return NULL;
2504    }
2505
2506    switch (type) {
2507    case EGL_SYNC_FENCE_KHR:
2508       dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2509       if (!dri2_sync->fence) {
2510          /* Why did it fail? DRI doesn't return an error code, so we emit
2511           * a generic EGL error that doesn't communicate user error.
2512           */
2513          _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2514          free(dri2_sync);
2515          return NULL;
2516       }
2517       break;
2518
2519    case EGL_SYNC_CL_EVENT_KHR:
2520       dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2521                                  dri2_dpy->dri_screen,
2522                                  dri2_sync->base.CLEvent);
2523       /* this can only happen if the cl_event passed in is invalid. */
2524       if (!dri2_sync->fence) {
2525          _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2526          free(dri2_sync);
2527          return NULL;
2528       }
2529
2530       /* the initial status must be "signaled" if the cl_event is signaled */
2531       if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2532                                             dri2_sync->fence, 0, 0))
2533          dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2534       break;
2535
2536    case EGL_SYNC_REUSABLE_KHR:
2537       /* intialize attr */
2538       ret = pthread_condattr_init(&attr);
2539
2540       if (ret) {
2541          _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2542          free(dri2_sync);
2543          return NULL;
2544       }
2545
2546       /* change clock attribute to CLOCK_MONOTONIC */
2547       ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2548
2549       if (ret) {
2550          _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2551          free(dri2_sync);
2552          return NULL;
2553       }
2554
2555       ret = pthread_cond_init(&dri2_sync->cond, &attr);
2556
2557       if (ret) {
2558          _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2559          free(dri2_sync);
2560          return NULL;
2561       }
2562
2563       /* initial status of reusable sync must be "unsignaled" */
2564       dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2565       break;
2566    }
2567
2568    p_atomic_set(&dri2_sync->refcount, 1);
2569    return &dri2_sync->base;
2570 }
2571
2572 static EGLBoolean
2573 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2574 {
2575    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2576    struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2577    EGLint ret = EGL_TRUE;
2578    EGLint err;
2579
2580    /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2581     * then unlock all threads possibly blocked by the reusable sync before
2582     * destroying it.
2583     */
2584    if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2585        dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2586       dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2587       /* unblock all threads currently blocked by sync */
2588       err = cnd_broadcast(&dri2_sync->cond);
2589
2590       if (err) {
2591          _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2592          ret = EGL_FALSE;
2593       }
2594    }
2595    dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2596
2597    return ret;
2598 }
2599
2600 static EGLint
2601 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2602                       EGLint flags, EGLTime timeout)
2603 {
2604    _EGLContext *ctx = _eglGetCurrentContext();
2605    struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2606    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2607    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2608    struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2609    unsigned wait_flags = 0;
2610
2611    /* timespecs for cnd_timedwait */
2612    struct timespec current;
2613    xtime expire;
2614
2615    EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2616
2617    /* The EGL_KHR_fence_sync spec states:
2618     *
2619     *    "If no context is current for the bound API,
2620     *     the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2621     */
2622    if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2623       wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2624
2625    /* the sync object should take a reference while waiting */
2626    dri2_egl_ref_sync(dri2_sync);
2627
2628    switch (sync->Type) {
2629    case EGL_SYNC_FENCE_KHR:
2630    case EGL_SYNC_CL_EVENT_KHR:
2631       if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2632                                          dri2_sync->fence, wait_flags,
2633                                          timeout))
2634          dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2635       else
2636          ret = EGL_TIMEOUT_EXPIRED_KHR;
2637       break;
2638
2639    case EGL_SYNC_REUSABLE_KHR:
2640       if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2641           (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2642          /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2643          if (dri2_drv->glFlush)
2644             dri2_drv->glFlush();
2645       }
2646
2647       /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2648       if (timeout == EGL_FOREVER_KHR) {
2649          if (mtx_lock(&dri2_sync->mutex)) {
2650             ret = EGL_FALSE;
2651             goto cleanup;
2652          }
2653
2654          ret = cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2655
2656          mtx_unlock(&dri2_sync->mutex);
2657
2658          if (ret) {
2659             _eglError(EGL_BAD_PARAMETER, "eglClientWaitSyncKHR");
2660             ret = EGL_FALSE;
2661          }
2662       } else {
2663          /* if reusable sync has not been yet signaled */
2664          if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2665             clock_gettime(CLOCK_MONOTONIC, &current);
2666
2667             /* calculating when to expire */
2668             expire.nsec = timeout % 1000000000L;
2669             expire.sec = timeout / 1000000000L;
2670
2671             expire.nsec += current.tv_nsec;
2672             expire.sec += current.tv_sec;
2673
2674             /* expire.nsec now is a number between 0 and 1999999998 */
2675             if (expire.nsec > 999999999L) {
2676                expire.sec++;
2677                expire.nsec -= 1000000000L;
2678             }
2679
2680             if (mtx_lock(&dri2_sync->mutex)) {
2681                ret = EGL_FALSE;
2682                goto cleanup;
2683             }
2684
2685             ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2686
2687             mtx_unlock(&dri2_sync->mutex);
2688
2689             if (ret)
2690                if (ret == thrd_busy) {
2691                   if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2692                      ret = EGL_TIMEOUT_EXPIRED_KHR;
2693                   } else {
2694                      _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2695                      ret = EGL_FALSE;
2696                   }
2697                }
2698          }
2699       }
2700       break;
2701   }
2702
2703  cleanup:
2704    dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2705
2706    if (ret == EGL_FALSE) {
2707       _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2708       return EGL_FALSE;
2709    }
2710
2711    return ret;
2712 }
2713
2714 static EGLBoolean
2715 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2716                       EGLenum mode)
2717 {
2718    struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2719    EGLint ret;
2720
2721    if (sync->Type != EGL_SYNC_REUSABLE_KHR) {
2722       _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
2723       return EGL_FALSE;
2724    }
2725
2726    if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR) {
2727       _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
2728       return EGL_FALSE;
2729    }
2730
2731    dri2_sync->base.SyncStatus = mode;
2732
2733    if (mode == EGL_SIGNALED_KHR) {
2734       ret = cnd_broadcast(&dri2_sync->cond);
2735
2736       /* fail to broadcast */
2737       if (ret) {
2738          _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
2739          return EGL_FALSE;
2740       }
2741    }
2742
2743    return EGL_TRUE;
2744 }
2745
2746 static EGLint
2747 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2748 {
2749    _EGLContext *ctx = _eglGetCurrentContext();
2750    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2751    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2752    struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2753
2754    dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2755                                      dri2_sync->fence, 0);
2756    return EGL_TRUE;
2757 }
2758
2759 static int
2760 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
2761                                struct mesa_glinterop_device_info *out)
2762 {
2763    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2764    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2765
2766    if (!dri2_dpy->interop)
2767       return MESA_GLINTEROP_UNSUPPORTED;
2768
2769    return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
2770 }
2771
2772 static int
2773 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
2774                            struct mesa_glinterop_export_in *in,
2775                            struct mesa_glinterop_export_out *out)
2776 {
2777    struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2778    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2779
2780    if (!dri2_dpy->interop)
2781       return MESA_GLINTEROP_UNSUPPORTED;
2782
2783    return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
2784 }
2785
2786 static void
2787 dri2_unload(_EGLDriver *drv)
2788 {
2789    struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2790
2791    if (dri2_drv->handle)
2792       dlclose(dri2_drv->handle);
2793    free(dri2_drv);
2794 }
2795
2796 static EGLBoolean
2797 dri2_load(_EGLDriver *drv)
2798 {
2799    struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2800 #ifdef HAVE_ANDROID_PLATFORM
2801    const char *libname = "libglapi.so";
2802 #elif defined(__APPLE__)
2803    const char *libname = "libglapi.0.dylib";
2804 #else
2805    const char *libname = "libglapi.so.0";
2806 #endif
2807    void *handle;
2808
2809    /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2810    handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2811    if (handle) {
2812       dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2813          dlsym(handle, "_glapi_get_proc_address");
2814       if (!dri2_drv->get_proc_address || !libname) {
2815          /* no need to keep a reference */
2816          dlclose(handle);
2817          handle = NULL;
2818       }
2819    }
2820
2821    /* if glapi is not available, loading DRI drivers will fail */
2822    if (!dri2_drv->get_proc_address) {
2823       _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2824       return EGL_FALSE;
2825    }
2826
2827    dri2_drv->glFlush = (void (*)(void))
2828       dri2_drv->get_proc_address("glFlush");
2829
2830    dri2_drv->handle = handle;
2831
2832    return EGL_TRUE;
2833 }
2834
2835 /**
2836  * This is the main entrypoint into the driver, called by libEGL.
2837  * Create a new _EGLDriver object and init its dispatch table.
2838  */
2839 _EGLDriver *
2840 _eglBuiltInDriverDRI2(const char *args)
2841 {
2842    struct dri2_egl_driver *dri2_drv;
2843
2844    (void) args;
2845
2846    dri2_drv = calloc(1, sizeof *dri2_drv);
2847    if (!dri2_drv)
2848       return NULL;
2849
2850    if (!dri2_load(&dri2_drv->base)) {
2851       free(dri2_drv);
2852       return NULL;
2853    }
2854
2855    _eglInitDriverFallbacks(&dri2_drv->base);
2856    dri2_drv->base.API.Initialize = dri2_initialize;
2857    dri2_drv->base.API.Terminate = dri2_terminate;
2858    dri2_drv->base.API.CreateContext = dri2_create_context;
2859    dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2860    dri2_drv->base.API.MakeCurrent = dri2_make_current;
2861    dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2862    dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2863    dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2864    dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2865    dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2866    dri2_drv->base.API.WaitClient = dri2_wait_client;
2867    dri2_drv->base.API.WaitNative = dri2_wait_native;
2868    dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2869    dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2870    dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2871    dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2872    dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2873    dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2874    dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
2875    dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
2876    dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
2877    dri2_drv->base.API.CreateImageKHR = dri2_create_image;
2878    dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2879    dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
2880 #ifdef HAVE_LIBDRM
2881    dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2882    dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2883    dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
2884    dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
2885 #endif
2886 #ifdef HAVE_WAYLAND_PLATFORM
2887    dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2888    dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2889    dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2890 #endif
2891    dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
2892    dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
2893    dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
2894    dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
2895    dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
2896    dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
2897    dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
2898    dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
2899
2900    dri2_drv->base.Name = "DRI2";
2901    dri2_drv->base.Unload = dri2_unload;
2902
2903    return &dri2_drv->base;
2904 }