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 #include <stdbool.h>
  29 #include <stdint.h>
  30 #include <stdbool.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <stdio.h>
  34 #include <limits.h>
  35 #include <dlfcn.h>
  36 #include <fcntl.h>
  37 #include <errno.h>
  38 #include <unistd.h>
  39 #include <c11/threads.h>
  40 #include <time.h>
  41 #ifdef HAVE_LIBDRM
  42 #include <xf86drm.h>
  43 #include "drm-uapi/drm_fourcc.h"
  44 #endif
  45 #include <GL/gl.h>
  46 #include <GL/internal/dri_interface.h>
  47 #include <sys/types.h>
  48 #include <sys/stat.h>
  49
  50 #ifdef HAVE_WAYLAND_PLATFORM
  51 #include <wayland-client.h>
  52 #include "wayland-drm.h"
  53 #include "wayland-drm-client-protocol.h"
  54 #include "linux-dmabuf-unstable-v1-client-protocol.h"
  55 #endif
  56
  57 #ifdef HAVE_X11_PLATFORM
  58 #include "X11/Xlibint.h"
  59 #endif
  60
  61 #include "egldefines.h"
  62 #include "egl_dri2.h"
  63 #include "GL/mesa_glinterop.h"
  64 #include "loader/loader.h"
  65 #include "util/u_atomic.h"
  66 #include "util/u_vector.h"
  67 #include "mapi/glapi/glapi.h"
  68
  69 /* Additional definitions not yet in the drm_fourcc.h.
  70  */
  71 #ifndef DRM_FORMAT_P010
  72 #define DRM_FORMAT_P010          fourcc_code('P', '0', '1', '0') /* 2x2 subsampled Cb:Cr plane 10 bits per channel */
  73 #endif
  74
  75 #ifndef DRM_FORMAT_P012
  76 #define DRM_FORMAT_P012          fourcc_code('P', '0', '1', '2') /* 2x2 subsampled Cb:Cr plane 12 bits per channel */
  77 #endif
  78
  79 #ifndef DRM_FORMAT_P016
  80 #define DRM_FORMAT_P016          fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cb:Cr plane 16 bits per channel */
  81 #endif
  82
  83 #define NUM_ATTRIBS 12
  84
  85 static void
  86 dri_set_background_context(void *loaderPrivate)
  87 {
  88    _EGLContext *ctx = _eglGetCurrentContext();
  89    _EGLThreadInfo *t = _eglGetCurrentThread();
  90
  91    _eglBindContextToThread(ctx, t);
  92 }
  93
  94 static void
  95 dri2_gl_flush()
  96 {
  97    static void (*glFlush)(void);
  98    static mtx_t glFlushMutex = _MTX_INITIALIZER_NP;
  99
 100    mtx_lock(&glFlushMutex);
 101    if (!glFlush)
 102       glFlush = _glapi_get_proc_address("glFlush");
 103    mtx_unlock(&glFlushMutex);
 104
 105    /* if glFlush is not available things are horribly broken */
 106    if (!glFlush) {
 107       _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
 108       return;
 109    }
 110
 111    glFlush();
 112 }
 113
 114 static GLboolean
 115 dri_is_thread_safe(void *loaderPrivate)
 116 {
 117    struct dri2_egl_surface *dri2_surf = loaderPrivate;
 118    MAYBE_UNUSED _EGLDisplay *display =  dri2_surf->base.Resource.Display;
 119
 120 #ifdef HAVE_X11_PLATFORM
 121    Display *xdpy = (Display*)display->PlatformDisplay;
 122
 123    /* Check Xlib is running in thread safe mode when running on EGL/X11-xlib
 124     * platform
 125     *
 126     * 'lock_fns' is the XLockDisplay function pointer of the X11 display 'dpy'.
 127     * It wll be NULL if XInitThreads wasn't called.
 128     */
 129    if (display->Platform == _EGL_PLATFORM_X11 && xdpy && !xdpy->lock_fns)
 130       return false;
 131 #endif
 132
 133 #ifdef HAVE_WAYLAND_PLATFORM
 134    if (display->Platform == _EGL_PLATFORM_WAYLAND)
 135       return true;
 136 #endif
 137
 138    return true;
 139 }
 140
 141 const __DRIbackgroundCallableExtension background_callable_extension = {
 142    .base = { __DRI_BACKGROUND_CALLABLE, 2 },
 143
 144    .setBackgroundContext = dri_set_background_context,
 145    .isThreadSafe         = dri_is_thread_safe,
 146 };
 147
 148 const __DRIuseInvalidateExtension use_invalidate = {
 149    .base = { __DRI_USE_INVALIDATE, 1 }
 150 };
 151
 152 static const EGLint dri2_to_egl_attribute_map[__DRI_ATTRIB_MAX] = {
 153    [__DRI_ATTRIB_BUFFER_SIZE ]          = EGL_BUFFER_SIZE,
 154    [__DRI_ATTRIB_LEVEL]                 = EGL_LEVEL,
 155    [__DRI_ATTRIB_RED_SIZE]              = EGL_RED_SIZE,
 156    [__DRI_ATTRIB_GREEN_SIZE]            = EGL_GREEN_SIZE,
 157    [__DRI_ATTRIB_BLUE_SIZE]             = EGL_BLUE_SIZE,
 158    [__DRI_ATTRIB_LUMINANCE_SIZE]        = EGL_LUMINANCE_SIZE,
 159    [__DRI_ATTRIB_ALPHA_SIZE]            = EGL_ALPHA_SIZE,
 160    [__DRI_ATTRIB_DEPTH_SIZE]            = EGL_DEPTH_SIZE,
 161    [__DRI_ATTRIB_STENCIL_SIZE]          = EGL_STENCIL_SIZE,
 162    [__DRI_ATTRIB_SAMPLE_BUFFERS]        = EGL_SAMPLE_BUFFERS,
 163    [__DRI_ATTRIB_SAMPLES]               = EGL_SAMPLES,
 164    [__DRI_ATTRIB_MAX_PBUFFER_WIDTH]     = EGL_MAX_PBUFFER_WIDTH,
 165    [__DRI_ATTRIB_MAX_PBUFFER_HEIGHT]    = EGL_MAX_PBUFFER_HEIGHT,
 166    [__DRI_ATTRIB_MAX_PBUFFER_PIXELS]    = EGL_MAX_PBUFFER_PIXELS,
 167    [__DRI_ATTRIB_MAX_SWAP_INTERVAL]     = EGL_MAX_SWAP_INTERVAL,
 168    [__DRI_ATTRIB_MIN_SWAP_INTERVAL]     = EGL_MIN_SWAP_INTERVAL,
 169    [__DRI_ATTRIB_YINVERTED]             = EGL_Y_INVERTED_NOK,
 170 };
 171
 172 const __DRIconfig *
 173 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
 174                     EGLenum colorspace)
 175 {
 176    const bool double_buffer = surface_type == EGL_WINDOW_BIT;
 177    const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
 178
 179    return conf->dri_config[double_buffer][srgb];
 180 }
 181
 182 static EGLBoolean
 183 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
 184 {
 185    if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
 186       return EGL_FALSE;
 187
 188    if (!_eglMatchConfig(conf, criteria))
 189       return EGL_FALSE;
 190
 191    return EGL_TRUE;
 192 }
 193
 194 struct dri2_egl_config *
 195 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
 196                 EGLint surface_type, const EGLint *attr_list,
 197                 const unsigned int *rgba_masks)
 198 {
 199    struct dri2_egl_config *conf;
 200    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 201    _EGLConfig base;
 202    unsigned int attrib, value, double_buffer;
 203    bool srgb = false;
 204    EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
 205    unsigned int dri_masks[4] = { 0, 0, 0, 0 };
 206    _EGLConfig *matching_config;
 207    EGLint num_configs = 0;
 208    EGLint config_id;
 209
 210    _eglInitConfig(&base, disp, id);
 211
 212    double_buffer = 0;
 213    bind_to_texture_rgb = 0;
 214    bind_to_texture_rgba = 0;
 215
 216    for (int i = 0; i < __DRI_ATTRIB_MAX; ++i) {
 217       if (!dri2_dpy->core->indexConfigAttrib(dri_config, i, &attrib, &value))
 218          break;
 219
 220       switch (attrib) {
 221       case __DRI_ATTRIB_RENDER_TYPE:
 222          if (value & __DRI_ATTRIB_RGBA_BIT)
 223             value = EGL_RGB_BUFFER;
 224          else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
 225             value = EGL_LUMINANCE_BUFFER;
 226          else
 227             return NULL;
 228          _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
 229          break;
 230
 231       case __DRI_ATTRIB_CONFIG_CAVEAT:
 232          if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
 233             value = EGL_NON_CONFORMANT_CONFIG;
 234          else if (value & __DRI_ATTRIB_SLOW_BIT)
 235             value = EGL_SLOW_CONFIG;
 236          else
 237             value = EGL_NONE;
 238          _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
 239          break;
 240
 241       case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
 242          bind_to_texture_rgb = value;
 243          break;
 244
 245       case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
 246          bind_to_texture_rgba = value;
 247          break;
 248
 249       case __DRI_ATTRIB_DOUBLE_BUFFER:
 250          double_buffer = value;
 251          break;
 252
 253       case __DRI_ATTRIB_RED_MASK:
 254          dri_masks[0] = value;
 255          break;
 256
 257       case __DRI_ATTRIB_GREEN_MASK:
 258          dri_masks[1] = value;
 259          break;
 260
 261       case __DRI_ATTRIB_BLUE_MASK:
 262          dri_masks[2] = value;
 263          break;
 264
 265       case __DRI_ATTRIB_ALPHA_MASK:
 266          dri_masks[3] = value;
 267          break;
 268
 269       case __DRI_ATTRIB_ACCUM_RED_SIZE:
 270       case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
 271       case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
 272       case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
 273          /* Don't expose visuals with the accumulation buffer. */
 274          if (value > 0)
 275             return NULL;
 276          break;
 277
 278       case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
 279          srgb = value != 0;
 280          if (!disp->Extensions.KHR_gl_colorspace && srgb)
 281             return NULL;
 282          break;
 283
 284       case __DRI_ATTRIB_MAX_PBUFFER_WIDTH:
 285          _eglSetConfigKey(&base, EGL_MAX_PBUFFER_WIDTH,
 286                           _EGL_MAX_PBUFFER_WIDTH);
 287          break;
 288       case __DRI_ATTRIB_MAX_PBUFFER_HEIGHT:
 289          _eglSetConfigKey(&base, EGL_MAX_PBUFFER_HEIGHT,
 290                           _EGL_MAX_PBUFFER_HEIGHT);
 291          break;
 292       case __DRI_ATTRIB_MUTABLE_RENDER_BUFFER:
 293          if (disp->Extensions.KHR_mutable_render_buffer)
 294             surface_type |= EGL_MUTABLE_RENDER_BUFFER_BIT_KHR;
 295          break;
 296       default:
 297          key = dri2_to_egl_attribute_map[attrib];
 298          if (key != 0)
 299             _eglSetConfigKey(&base, key, value);
 300          break;
 301       }
 302    }
 303
 304    if (attr_list)
 305       for (int i = 0; attr_list[i] != EGL_NONE; i += 2)
 306          _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
 307
 308    if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
 309       return NULL;
 310
 311    base.NativeRenderable = EGL_TRUE;
 312
 313    base.SurfaceType = surface_type;
 314    if (surface_type & (EGL_PBUFFER_BIT |
 315        (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
 316       base.BindToTextureRGB = bind_to_texture_rgb;
 317       if (base.AlphaSize > 0)
 318          base.BindToTextureRGBA = bind_to_texture_rgba;
 319    }
 320
 321    base.RenderableType = disp->ClientAPIs;
 322    base.Conformant = disp->ClientAPIs;
 323
 324    base.MinSwapInterval = dri2_dpy->min_swap_interval;
 325    base.MaxSwapInterval = dri2_dpy->max_swap_interval;
 326
 327    if (!_eglValidateConfig(&base, EGL_FALSE)) {
 328       _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
 329       return NULL;
 330    }
 331
 332    config_id = base.ConfigID;
 333    base.ConfigID    = EGL_DONT_CARE;
 334    base.SurfaceType = EGL_DONT_CARE;
 335    num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
 336                                  (_EGLArrayForEach) dri2_match_config, &base);
 337
 338    if (num_configs == 1) {
 339       conf = (struct dri2_egl_config *) matching_config;
 340
 341       if (!conf->dri_config[double_buffer][srgb])
 342          conf->dri_config[double_buffer][srgb] = dri_config;
 343       else
 344          /* a similar config type is already added (unlikely) => discard */
 345          return NULL;
 346    }
 347    else if (num_configs == 0) {
 348       conf = calloc(1, sizeof *conf);
 349       if (conf == NULL)
 350          return NULL;
 351
 352       conf->dri_config[double_buffer][srgb] = dri_config;
 353
 354       memcpy(&conf->base, &base, sizeof base);
 355       conf->base.SurfaceType = 0;
 356       conf->base.ConfigID = config_id;
 357
 358       _eglLinkConfig(&conf->base);
 359    }
 360    else {
 361       unreachable("duplicates should not be possible");
 362       return NULL;
 363    }
 364
 365    if (double_buffer) {
 366       surface_type &= ~EGL_PIXMAP_BIT;
 367    }
 368
 369    /* No support for pbuffer + MSAA for now.
 370     *
 371     * XXX TODO: pbuffer + MSAA does not work and causes crashes.
 372     * See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
 373     */
 374    if (base.Samples) {
 375       surface_type &= ~EGL_PBUFFER_BIT;
 376    }
 377
 378    conf->base.SurfaceType |= surface_type;
 379
 380    return conf;
 381 }
 382
 383 __DRIimage *
 384 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
 385 {
 386    _EGLDisplay *disp = data;
 387    struct dri2_egl_image *dri2_img;
 388    _EGLImage *img;
 389
 390    (void) screen;
 391
 392    img = _eglLookupImage(image, disp);
 393    if (img == NULL) {
 394       _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
 395       return NULL;
 396    }
 397
 398    dri2_img = dri2_egl_image(image);
 399
 400    return dri2_img->dri_image;
 401 }
 402
 403 const __DRIimageLookupExtension image_lookup_extension = {
 404    .base = { __DRI_IMAGE_LOOKUP, 1 },
 405
 406    .lookupEGLImage       = dri2_lookup_egl_image
 407 };
 408
 409 struct dri2_extension_match {
 410    const char *name;
 411    int version;
 412    int offset;
 413 };
 414
 415 static const struct dri2_extension_match dri3_driver_extensions[] = {
 416    { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
 417    { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
 418    { NULL, 0, 0 }
 419 };
 420
 421 static const struct dri2_extension_match dri2_driver_extensions[] = {
 422    { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
 423    { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
 424    { NULL, 0, 0 }
 425 };
 426
 427 static const struct dri2_extension_match dri2_core_extensions[] = {
 428    { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
 429    { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
 430    { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
 431    { NULL, 0, 0 }
 432 };
 433
 434 static const struct dri2_extension_match swrast_driver_extensions[] = {
 435    { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
 436    { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
 437    { NULL, 0, 0 }
 438 };
 439
 440 static const struct dri2_extension_match swrast_core_extensions[] = {
 441    { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
 442    { NULL, 0, 0 }
 443 };
 444
 445 static const struct dri2_extension_match optional_driver_extensions[] = {
 446    { __DRI_CONFIG_OPTIONS, 1, offsetof(struct dri2_egl_display, configOptions) },
 447    { NULL, 0, 0 }
 448 };
 449
 450 static const struct dri2_extension_match optional_core_extensions[] = {
 451    { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
 452    { __DRI2_NO_ERROR, 1, offsetof(struct dri2_egl_display, no_error) },
 453    { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
 454    { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
 455    { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
 456    { __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
 457    { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
 458    { __DRI2_FLUSH_CONTROL, 1, offsetof(struct dri2_egl_display, flush_control) },
 459    { __DRI2_BLOB, 1, offsetof(struct dri2_egl_display, blob) },
 460    { __DRI_MUTABLE_RENDER_BUFFER_DRIVER, 1, offsetof(struct dri2_egl_display, mutable_render_buffer) },
 461    { NULL, 0, 0 }
 462 };
 463
 464 static EGLBoolean
 465 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
 466                      const struct dri2_extension_match *matches,
 467                      const __DRIextension **extensions,
 468                      bool optional)
 469 {
 470    int ret = EGL_TRUE;
 471    void *field;
 472
 473    for (int i = 0; extensions[i]; i++) {
 474       _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
 475       for (int j = 0; matches[j].name; j++) {
 476          if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
 477              extensions[i]->version >= matches[j].version) {
 478             field = ((char *) dri2_dpy + matches[j].offset);
 479             *(const __DRIextension **) field = extensions[i];
 480             _eglLog(_EGL_INFO, "found extension %s version %d",
 481                     extensions[i]->name, extensions[i]->version);
 482             break;
 483          }
 484       }
 485    }
 486
 487    for (int j = 0; matches[j].name; j++) {
 488       field = ((char *) dri2_dpy + matches[j].offset);
 489       if (*(const __DRIextension **) field == NULL) {
 490          if (optional) {
 491             _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
 492                     matches[j].name, matches[j].version);
 493          } else {
 494             _eglLog(_EGL_WARNING, "did not find extension %s version %d",
 495                     matches[j].name, matches[j].version);
 496             ret = EGL_FALSE;
 497          }
 498       }
 499    }
 500
 501    return ret;
 502 }
 503
 504 static const __DRIextension **
 505 dri2_open_driver(_EGLDisplay *disp)
 506 {
 507    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 508    static const char *search_path_vars[] = {
 509       "LIBGL_DRIVERS_PATH",
 510       NULL,
 511    };
 512
 513    return loader_open_driver(dri2_dpy->driver_name,
 514                              &dri2_dpy->driver,
 515                              search_path_vars);
 516 }
 517
 518 static EGLBoolean
 519 dri2_load_driver_common(_EGLDisplay *disp,
 520                         const struct dri2_extension_match *driver_extensions)
 521 {
 522    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 523    const __DRIextension **extensions;
 524
 525    extensions = dri2_open_driver(disp);
 526    if (!extensions)
 527       return EGL_FALSE;
 528
 529    if (!dri2_bind_extensions(dri2_dpy, driver_extensions, extensions, false)) {
 530       dlclose(dri2_dpy->driver);
 531       return EGL_FALSE;
 532    }
 533    dri2_dpy->driver_extensions = extensions;
 534
 535    dri2_bind_extensions(dri2_dpy, optional_driver_extensions, extensions, true);
 536
 537    return EGL_TRUE;
 538 }
 539
 540 EGLBoolean
 541 dri2_load_driver(_EGLDisplay *disp)
 542 {
 543    return dri2_load_driver_common(disp, dri2_driver_extensions);
 544 }
 545
 546 EGLBoolean
 547 dri2_load_driver_dri3(_EGLDisplay *disp)
 548 {
 549    return dri2_load_driver_common(disp, dri3_driver_extensions);
 550 }
 551
 552 EGLBoolean
 553 dri2_load_driver_swrast(_EGLDisplay *disp)
 554 {
 555    return dri2_load_driver_common(disp, swrast_driver_extensions);
 556 }
 557
 558 static unsigned
 559 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
 560 {
 561    const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
 562    unsigned int value = 0;
 563
 564    if (!rendererQuery ||
 565        rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
 566       return 0;
 567
 568    return value;
 569 }
 570
 571 static const char *
 572 dri2_query_driver_name(_EGLDisplay *disp)
 573 {
 574     struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 575     return dri2_dpy->driver_name;
 576 }
 577
 578 static char *
 579 dri2_query_driver_config(_EGLDisplay *disp)
 580 {
 581     struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 582     const __DRIconfigOptionsExtension *ext = dri2_dpy->configOptions;
 583
 584     if (ext->base.version >= 2)
 585         return ext->getXml(dri2_dpy->driver_name);
 586
 587     return strdup(ext->xml);
 588 }
 589
 590
 591 void
 592 dri2_setup_screen(_EGLDisplay *disp)
 593 {
 594    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 595    unsigned int api_mask;
 596
 597    /*
 598     * EGL 1.5 specification defines the default value to 1. Moreover,
 599     * eglSwapInterval() is required to clamp requested value to the supported
 600     * range. Since the default value is implicitly assumed to be supported,
 601     * use it as both minimum and maximum for the platforms that do not allow
 602     * changing the interval. Platforms, which allow it (e.g. x11, wayland)
 603     * override these values already.
 604     */
 605    dri2_dpy->min_swap_interval = 1;
 606    dri2_dpy->max_swap_interval = 1;
 607    dri2_dpy->default_swap_interval = 1;
 608
 609    if (dri2_dpy->image_driver) {
 610       api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
 611    } else if (dri2_dpy->dri2) {
 612       api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
 613    } else {
 614       assert(dri2_dpy->swrast);
 615       api_mask = 1 << __DRI_API_OPENGL |
 616                  1 << __DRI_API_GLES |
 617                  1 << __DRI_API_GLES2 |
 618                  1 << __DRI_API_GLES3;
 619    }
 620
 621    disp->ClientAPIs = 0;
 622    if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
 623       disp->ClientAPIs |= EGL_OPENGL_BIT;
 624    if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
 625       disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
 626    if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
 627       disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
 628    if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
 629       disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
 630
 631    assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
 632    disp->Extensions.KHR_no_config_context = EGL_TRUE;
 633    disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
 634
 635    if (dri2_dpy->configOptions) {
 636        disp->Extensions.MESA_query_driver = EGL_TRUE;
 637    }
 638
 639    /* Report back to EGL the bitmask of priorities supported */
 640    disp->Extensions.IMG_context_priority =
 641       dri2_renderer_query_integer(dri2_dpy,
 642                                   __DRI2_RENDERER_HAS_CONTEXT_PRIORITY);
 643
 644    disp->Extensions.EXT_pixel_format_float = EGL_TRUE;
 645
 646    if (dri2_renderer_query_integer(dri2_dpy,
 647                                    __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
 648       disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
 649
 650    if (dri2_dpy->image_driver ||
 651        (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
 652        (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
 653       disp->Extensions.KHR_create_context = EGL_TRUE;
 654
 655       if (dri2_dpy->robustness)
 656          disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
 657    }
 658
 659    if (dri2_dpy->no_error)
 660       disp->Extensions.KHR_create_context_no_error = EGL_TRUE;
 661
 662    if (dri2_dpy->fence) {
 663       disp->Extensions.KHR_fence_sync = EGL_TRUE;
 664       disp->Extensions.KHR_wait_sync = EGL_TRUE;
 665       if (dri2_dpy->fence->get_fence_from_cl_event)
 666          disp->Extensions.KHR_cl_event2 = EGL_TRUE;
 667       if (dri2_dpy->fence->base.version >= 2 &&
 668           dri2_dpy->fence->get_capabilities) {
 669          unsigned capabilities =
 670             dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
 671          disp->Extensions.ANDROID_native_fence_sync =
 672             (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
 673       }
 674    }
 675
 676    if (dri2_dpy->blob)
 677       disp->Extensions.ANDROID_blob_cache = EGL_TRUE;
 678
 679    disp->Extensions.KHR_reusable_sync = EGL_TRUE;
 680
 681    if (dri2_dpy->image) {
 682       if (dri2_dpy->image->base.version >= 10 &&
 683           dri2_dpy->image->getCapabilities != NULL) {
 684          int capabilities;
 685
 686          capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
 687          disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
 688
 689          if (dri2_dpy->image->base.version >= 11)
 690             disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
 691       } else {
 692          disp->Extensions.MESA_drm_image = EGL_TRUE;
 693          if (dri2_dpy->image->base.version >= 11)
 694             disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
 695       }
 696
 697       disp->Extensions.KHR_image_base = EGL_TRUE;
 698       disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
 699       if (dri2_dpy->image->base.version >= 5 &&
 700           dri2_dpy->image->createImageFromTexture) {
 701          disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
 702          disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
 703
 704          if (dri2_renderer_query_integer(dri2_dpy,
 705                                          __DRI2_RENDERER_HAS_TEXTURE_3D))
 706              disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
 707       }
 708 #ifdef HAVE_LIBDRM
 709       if (dri2_dpy->image->base.version >= 8 &&
 710           dri2_dpy->image->createImageFromDmaBufs) {
 711          disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
 712       }
 713       if (dri2_dpy->image->base.version >= 15 &&
 714           dri2_dpy->image->createImageFromDmaBufs2 &&
 715           dri2_dpy->image->queryDmaBufFormats &&
 716           dri2_dpy->image->queryDmaBufModifiers) {
 717          disp->Extensions.EXT_image_dma_buf_import_modifiers = EGL_TRUE;
 718       }
 719 #endif
 720    }
 721
 722    if (dri2_dpy->flush_control)
 723       disp->Extensions.KHR_context_flush_control = EGL_TRUE;
 724 }
 725
 726 void
 727 dri2_setup_swap_interval(_EGLDisplay *disp, int max_swap_interval)
 728 {
 729    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 730    GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
 731
 732    /* Allow driconf to override applications.*/
 733    if (dri2_dpy->config)
 734       dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
 735                                      "vblank_mode", &vblank_mode);
 736    switch (vblank_mode) {
 737    case DRI_CONF_VBLANK_NEVER:
 738       dri2_dpy->min_swap_interval = 0;
 739       dri2_dpy->max_swap_interval = 0;
 740       dri2_dpy->default_swap_interval = 0;
 741       break;
 742    case DRI_CONF_VBLANK_ALWAYS_SYNC:
 743       dri2_dpy->min_swap_interval = 1;
 744       dri2_dpy->max_swap_interval = max_swap_interval;
 745       dri2_dpy->default_swap_interval = 1;
 746       break;
 747    case DRI_CONF_VBLANK_DEF_INTERVAL_0:
 748       dri2_dpy->min_swap_interval = 0;
 749       dri2_dpy->max_swap_interval = max_swap_interval;
 750       dri2_dpy->default_swap_interval = 0;
 751       break;
 752    default:
 753    case DRI_CONF_VBLANK_DEF_INTERVAL_1:
 754       dri2_dpy->min_swap_interval = 0;
 755       dri2_dpy->max_swap_interval = max_swap_interval;
 756       dri2_dpy->default_swap_interval = 1;
 757       break;
 758    }
 759 }
 760
 761 /* All platforms but DRM call this function to create the screen and populate
 762  * the driver_configs. DRM inherits that information from its display - GBM.
 763  */
 764 EGLBoolean
 765 dri2_create_screen(_EGLDisplay *disp)
 766 {
 767    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 768
 769    if (dri2_dpy->image_driver) {
 770       dri2_dpy->dri_screen =
 771          dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
 772                                                   dri2_dpy->loader_extensions,
 773                                                   dri2_dpy->driver_extensions,
 774                                                   &dri2_dpy->driver_configs,
 775                                                   disp);
 776    } else if (dri2_dpy->dri2) {
 777       if (dri2_dpy->dri2->base.version >= 4) {
 778          dri2_dpy->dri_screen =
 779             dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
 780                                              dri2_dpy->loader_extensions,
 781                                              dri2_dpy->driver_extensions,
 782                                              &dri2_dpy->driver_configs, disp);
 783       } else {
 784          dri2_dpy->dri_screen =
 785             dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
 786                                             dri2_dpy->loader_extensions,
 787                                             &dri2_dpy->driver_configs, disp);
 788       }
 789    } else {
 790       assert(dri2_dpy->swrast);
 791       if (dri2_dpy->swrast->base.version >= 4) {
 792          dri2_dpy->dri_screen =
 793             dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
 794                                                dri2_dpy->driver_extensions,
 795                                                &dri2_dpy->driver_configs, disp);
 796       } else {
 797          dri2_dpy->dri_screen =
 798             dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
 799                                               &dri2_dpy->driver_configs, disp);
 800       }
 801    }
 802
 803    if (dri2_dpy->dri_screen == NULL) {
 804       _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
 805       return EGL_FALSE;
 806    }
 807
 808    dri2_dpy->own_dri_screen = true;
 809    return EGL_TRUE;
 810 }
 811
 812 EGLBoolean
 813 dri2_setup_extensions(_EGLDisplay *disp)
 814 {
 815    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 816    const struct dri2_extension_match *mandatory_core_extensions;
 817    const __DRIextension **extensions;
 818
 819    extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
 820
 821    if (dri2_dpy->image_driver || dri2_dpy->dri2)
 822       mandatory_core_extensions = dri2_core_extensions;
 823    else
 824       mandatory_core_extensions = swrast_core_extensions;
 825
 826    if (!dri2_bind_extensions(dri2_dpy, mandatory_core_extensions, extensions, false))
 827       return EGL_FALSE;
 828
 829 #ifdef HAVE_DRI3_MODIFIERS
 830    dri2_dpy->multibuffers_available =
 831       (dri2_dpy->dri3_major_version > 1 || (dri2_dpy->dri3_major_version == 1 &&
 832                                             dri2_dpy->dri3_minor_version >= 2)) &&
 833       (dri2_dpy->present_major_version > 1 || (dri2_dpy->present_major_version == 1 &&
 834                                                dri2_dpy->present_minor_version >= 2)) &&
 835       (dri2_dpy->image && dri2_dpy->image->base.version >= 15);
 836 #endif
 837
 838    dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
 839    return EGL_TRUE;
 840 }
 841
 842 /**
 843  * Called via eglInitialize(), GLX_drv->API.Initialize().
 844  *
 845  * This must be guaranteed to be called exactly once, even if eglInitialize is
 846  * called many times (without a eglTerminate in between).
 847  */
 848 static EGLBoolean
 849 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
 850 {
 851    EGLBoolean ret = EGL_FALSE;
 852    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 853
 854    /* In the case where the application calls eglMakeCurrent(context1),
 855     * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
 856     * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
 857     * initialized, as we need it to be able to free context1 correctly.
 858     *
 859     * It would probably be safest to forcibly release the display with
 860     * dri2_display_release, to make sure the display is reinitialized correctly.
 861     * However, the EGL spec states that we need to keep a reference to the
 862     * current context (so we cannot call dri2_make_current(NULL)), and therefore
 863     * we would leak context1 as we would be missing the old display connection
 864     * to free it up correctly.
 865     */
 866    if (dri2_dpy) {
 867       dri2_dpy->ref_count++;
 868       return EGL_TRUE;
 869    }
 870
 871    loader_set_logger(_eglLog);
 872
 873    switch (disp->Platform) {
 874    case _EGL_PLATFORM_SURFACELESS:
 875       ret = dri2_initialize_surfaceless(drv, disp);
 876       break;
 877    case _EGL_PLATFORM_DEVICE:
 878       ret = dri2_initialize_device(drv, disp);
 879       break;
 880    case _EGL_PLATFORM_X11:
 881       ret = dri2_initialize_x11(drv, disp);
 882       break;
 883    case _EGL_PLATFORM_DRM:
 884       ret = dri2_initialize_drm(drv, disp);
 885       break;
 886    case _EGL_PLATFORM_WAYLAND:
 887       ret = dri2_initialize_wayland(drv, disp);
 888       break;
 889    case _EGL_PLATFORM_ANDROID:
 890       ret = dri2_initialize_android(drv, disp);
 891       break;
 892    default:
 893       unreachable("Callers ensure we cannot get here.");
 894       return EGL_FALSE;
 895    }
 896
 897    if (!ret)
 898       return EGL_FALSE;
 899
 900    dri2_dpy = dri2_egl_display(disp);
 901    dri2_dpy->ref_count++;
 902
 903    return EGL_TRUE;
 904 }
 905
 906 /**
 907  * Decrement display reference count, and free up display if necessary.
 908  */
 909 static void
 910 dri2_display_release(_EGLDisplay *disp)
 911 {
 912    struct dri2_egl_display *dri2_dpy;
 913
 914    if (!disp)
 915       return;
 916
 917    dri2_dpy = dri2_egl_display(disp);
 918
 919    assert(dri2_dpy->ref_count > 0);
 920    dri2_dpy->ref_count--;
 921
 922    if (dri2_dpy->ref_count > 0)
 923       return;
 924
 925    _eglCleanupDisplay(disp);
 926    dri2_display_destroy(disp);
 927 }
 928
 929 void
 930 dri2_display_destroy(_EGLDisplay *disp)
 931 {
 932    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 933
 934    if (dri2_dpy->own_dri_screen) {
 935       if (dri2_dpy->vtbl && dri2_dpy->vtbl->close_screen_notify)
 936          dri2_dpy->vtbl->close_screen_notify(disp);
 937       dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
 938    }
 939    if (dri2_dpy->fd >= 0)
 940       close(dri2_dpy->fd);
 941    if (dri2_dpy->driver)
 942       dlclose(dri2_dpy->driver);
 943    free(dri2_dpy->driver_name);
 944
 945 #ifdef HAVE_WAYLAND_PLATFORM
 946    free(dri2_dpy->device_name);
 947 #endif
 948
 949    switch (disp->Platform) {
 950    case _EGL_PLATFORM_X11:
 951       dri2_teardown_x11(dri2_dpy);
 952       break;
 953    case _EGL_PLATFORM_DRM:
 954       dri2_teardown_drm(dri2_dpy);
 955       break;
 956    case _EGL_PLATFORM_WAYLAND:
 957       dri2_teardown_wayland(dri2_dpy);
 958       break;
 959    default:
 960       /* TODO: add teardown for other platforms */
 961       break;
 962    }
 963
 964    /* The drm platform does not create the screen/driver_configs but reuses
 965     * the ones from the gbm device. As such the gbm itself is responsible
 966     * for the cleanup.
 967     */
 968    if (disp->Platform != _EGL_PLATFORM_DRM && dri2_dpy->driver_configs) {
 969       for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++)
 970          free((__DRIconfig *) dri2_dpy->driver_configs[i]);
 971       free(dri2_dpy->driver_configs);
 972    }
 973    free(dri2_dpy);
 974    disp->DriverData = NULL;
 975 }
 976
 977 __DRIbuffer *
 978 dri2_egl_surface_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
 979                                     unsigned int att, unsigned int format)
 980 {
 981    struct dri2_egl_display *dri2_dpy =
 982       dri2_egl_display(dri2_surf->base.Resource.Display);
 983
 984    if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
 985       return NULL;
 986
 987    if (!dri2_surf->local_buffers[att]) {
 988       dri2_surf->local_buffers[att] =
 989          dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
 990                                         dri2_surf->base.Width, dri2_surf->base.Height);
 991    }
 992
 993    return dri2_surf->local_buffers[att];
 994 }
 995
 996 void
 997 dri2_egl_surface_free_local_buffers(struct dri2_egl_surface *dri2_surf)
 998 {
 999    struct dri2_egl_display *dri2_dpy =
1000       dri2_egl_display(dri2_surf->base.Resource.Display);
1001
1002    for (int i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
1003       if (dri2_surf->local_buffers[i]) {
1004          dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
1005                                        dri2_surf->local_buffers[i]);
1006          dri2_surf->local_buffers[i] = NULL;
1007       }
1008    }
1009 }
1010
1011 /**
1012  * Called via eglTerminate(), drv->API.Terminate().
1013  *
1014  * This must be guaranteed to be called exactly once, even if eglTerminate is
1015  * called many times (without a eglInitialize in between).
1016  */
1017 static EGLBoolean
1018 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
1019 {
1020    /* Release all non-current Context/Surfaces. */
1021    _eglReleaseDisplayResources(drv, disp);
1022
1023    dri2_display_release(disp);
1024
1025    return EGL_TRUE;
1026 }
1027
1028 /**
1029  * Set the error code after a call to
1030  * dri2_egl_display::dri2::createContextAttribs.
1031  */
1032 static void
1033 dri2_create_context_attribs_error(int dri_error)
1034 {
1035    EGLint egl_error;
1036
1037    switch (dri_error) {
1038    case __DRI_CTX_ERROR_SUCCESS:
1039       return;
1040
1041    case __DRI_CTX_ERROR_NO_MEMORY:
1042       egl_error = EGL_BAD_ALLOC;
1043       break;
1044
1045   /* From the EGL_KHR_create_context spec, section "Errors":
1046    *
1047    *   * If <config> does not support a client API context compatible
1048    *     with the requested API major and minor version, [...] context flags,
1049    *     and context reset notification behavior (for client API types where
1050    *     these attributes are supported), then an EGL_BAD_MATCH error is
1051    *     generated.
1052    *
1053    *   * If an OpenGL ES context is requested and the values for
1054    *     attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
1055    *     EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
1056    *     is not defined, than an EGL_BAD_MATCH error is generated.
1057    *
1058    *   * If an OpenGL context is requested, the requested version is
1059    *     greater than 3.2, and the value for attribute
1060    *     EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
1061    *     bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
1062    *     EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
1063    *     one of these bits set; or if the implementation does not support
1064    *     the requested profile, then an EGL_BAD_MATCH error is generated.
1065    */
1066    case __DRI_CTX_ERROR_BAD_API:
1067    case __DRI_CTX_ERROR_BAD_VERSION:
1068    case __DRI_CTX_ERROR_BAD_FLAG:
1069       egl_error = EGL_BAD_MATCH;
1070       break;
1071
1072   /* From the EGL_KHR_create_context spec, section "Errors":
1073    *
1074    *   * If an attribute name or attribute value in <attrib_list> is not
1075    *     recognized (including unrecognized bits in bitmask attributes),
1076    *     then an EGL_BAD_ATTRIBUTE error is generated."
1077    */
1078    case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
1079    case __DRI_CTX_ERROR_UNKNOWN_FLAG:
1080       egl_error = EGL_BAD_ATTRIBUTE;
1081       break;
1082
1083    default:
1084       assert(!"unknown dri_error code");
1085       egl_error = EGL_BAD_MATCH;
1086       break;
1087    }
1088
1089    _eglError(egl_error, "dri2_create_context");
1090 }
1091
1092 static bool
1093 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1094                           struct dri2_egl_display *dri2_dpy,
1095                           uint32_t *ctx_attribs,
1096                           unsigned *num_attribs)
1097 {
1098    int pos = 0;
1099
1100    assert(*num_attribs >= NUM_ATTRIBS);
1101
1102    ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1103    ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1104    ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1105    ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1106
1107    if (dri2_ctx->base.Flags != 0 || dri2_ctx->base.NoError) {
1108       /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1109        * extension, don't even try to send it the robust-access flag.
1110        * It may explode.  Instead, generate the required EGL error here.
1111        */
1112       if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1113             && !dri2_dpy->robustness) {
1114          _eglError(EGL_BAD_MATCH, "eglCreateContext");
1115          return false;
1116       }
1117
1118       ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1119       ctx_attribs[pos++] = dri2_ctx->base.Flags |
1120          (dri2_ctx->base.NoError ? __DRI_CTX_FLAG_NO_ERROR : 0);
1121    }
1122
1123    if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1124       /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1125        * extension, don't even try to send it a reset strategy.  It may
1126        * explode.  Instead, generate the required EGL error here.
1127        */
1128       if (!dri2_dpy->robustness) {
1129          _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1130          return false;
1131       }
1132
1133       ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1134       ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1135    }
1136
1137    if (dri2_ctx->base.ContextPriority != EGL_CONTEXT_PRIORITY_MEDIUM_IMG) {
1138       unsigned val;
1139
1140       switch (dri2_ctx->base.ContextPriority) {
1141       case EGL_CONTEXT_PRIORITY_HIGH_IMG:
1142          val = __DRI_CTX_PRIORITY_HIGH;
1143          break;
1144       case EGL_CONTEXT_PRIORITY_MEDIUM_IMG:
1145          val = __DRI_CTX_PRIORITY_MEDIUM;
1146          break;
1147       case EGL_CONTEXT_PRIORITY_LOW_IMG:
1148          val = __DRI_CTX_PRIORITY_LOW;
1149          break;
1150       default:
1151          _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1152          return false;
1153       }
1154
1155       ctx_attribs[pos++] = __DRI_CTX_ATTRIB_PRIORITY;
1156       ctx_attribs[pos++] = val;
1157    }
1158
1159    if (dri2_ctx->base.ReleaseBehavior == EGL_CONTEXT_RELEASE_BEHAVIOR_NONE_KHR) {
1160       ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR;
1161       ctx_attribs[pos++] = __DRI_CTX_RELEASE_BEHAVIOR_NONE;
1162    }
1163
1164    *num_attribs = pos;
1165
1166    return true;
1167 }
1168
1169 /**
1170  * Called via eglCreateContext(), drv->API.CreateContext().
1171  */
1172 static _EGLContext *
1173 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1174                     _EGLContext *share_list, const EGLint *attrib_list)
1175 {
1176    struct dri2_egl_context *dri2_ctx;
1177    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1178    struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1179    __DRIcontext *shared =
1180       dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1181    struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1182    const __DRIconfig *dri_config;
1183    int api;
1184    unsigned error;
1185    unsigned num_attribs = NUM_ATTRIBS;
1186    uint32_t ctx_attribs[NUM_ATTRIBS];
1187
1188    (void) drv;
1189
1190    dri2_ctx = malloc(sizeof *dri2_ctx);
1191    if (!dri2_ctx) {
1192       _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1193       return NULL;
1194    }
1195
1196    if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1197       goto cleanup;
1198
1199    /* The EGL_EXT_create_context_robustness spec says:
1200     *
1201     *    "Add to the eglCreateContext context creation errors: [...]
1202     *
1203     *     * If the reset notification behavior of <share_context> and the
1204     *       newly created context are different then an EGL_BAD_MATCH error is
1205     *       generated."
1206     */
1207    if (share_list && share_list->ResetNotificationStrategy !=
1208                      dri2_ctx->base.ResetNotificationStrategy) {
1209       _eglError(EGL_BAD_MATCH, "eglCreateContext");
1210       goto cleanup;
1211    }
1212
1213    /* The EGL_KHR_create_context_no_error spec says:
1214     *
1215     *    "BAD_MATCH is generated if the value of EGL_CONTEXT_OPENGL_NO_ERROR_KHR
1216     *    used to create <share_context> does not match the value of
1217     *    EGL_CONTEXT_OPENGL_NO_ERROR_KHR for the context being created."
1218     */
1219    if (share_list && share_list->NoError != dri2_ctx->base.NoError) {
1220       _eglError(EGL_BAD_MATCH, "eglCreateContext");
1221       goto cleanup;
1222    }
1223
1224    switch (dri2_ctx->base.ClientAPI) {
1225    case EGL_OPENGL_ES_API:
1226       switch (dri2_ctx->base.ClientMajorVersion) {
1227       case 1:
1228          api = __DRI_API_GLES;
1229          break;
1230       case 2:
1231          api = __DRI_API_GLES2;
1232          break;
1233       case 3:
1234          api = __DRI_API_GLES3;
1235          break;
1236       default:
1237          _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1238          free(dri2_ctx);
1239          return NULL;
1240       }
1241       break;
1242    case EGL_OPENGL_API:
1243       if ((dri2_ctx->base.ClientMajorVersion >= 4
1244            || (dri2_ctx->base.ClientMajorVersion == 3
1245                && dri2_ctx->base.ClientMinorVersion >= 2))
1246           && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1247          api = __DRI_API_OPENGL_CORE;
1248       else
1249          api = __DRI_API_OPENGL;
1250       break;
1251    default:
1252       _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1253       free(dri2_ctx);
1254       return NULL;
1255    }
1256
1257    if (conf != NULL) {
1258       /* The config chosen here isn't necessarily
1259        * used for surfaces later.
1260        * A pixmap surface will use the single config.
1261        * This opportunity depends on disabling the
1262        * doubleBufferMode check in
1263        * src/mesa/main/context.c:check_compatible()
1264        */
1265       if (dri2_config->dri_config[1][0])
1266          dri_config = dri2_config->dri_config[1][0];
1267       else
1268          dri_config = dri2_config->dri_config[0][0];
1269    }
1270    else
1271       dri_config = NULL;
1272
1273    if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1274                                   &num_attribs))
1275       goto cleanup;
1276
1277    if (dri2_dpy->image_driver) {
1278       dri2_ctx->dri_context =
1279          dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1280                                                       api,
1281                                                       dri_config,
1282                                                       shared,
1283                                                       num_attribs / 2,
1284                                                       ctx_attribs,
1285                                                       & error,
1286                                                       dri2_ctx);
1287       dri2_create_context_attribs_error(error);
1288    } else if (dri2_dpy->dri2) {
1289       if (dri2_dpy->dri2->base.version >= 3) {
1290          dri2_ctx->dri_context =
1291             dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1292                                                  api,
1293                                                  dri_config,
1294                                                  shared,
1295                                                  num_attribs / 2,
1296                                                  ctx_attribs,
1297                                                  & error,
1298                                                  dri2_ctx);
1299          dri2_create_context_attribs_error(error);
1300       } else {
1301          dri2_ctx->dri_context =
1302             dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1303                                                    api,
1304                                                    dri_config,
1305                                                    shared,
1306                                                    dri2_ctx);
1307       }
1308    } else {
1309       assert(dri2_dpy->swrast);
1310       if (dri2_dpy->swrast->base.version >= 3) {
1311          dri2_ctx->dri_context =
1312             dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1313                                                    api,
1314                                                    dri_config,
1315                                                    shared,
1316                                                    num_attribs / 2,
1317                                                    ctx_attribs,
1318                                                    & error,
1319                                                    dri2_ctx);
1320          dri2_create_context_attribs_error(error);
1321       } else {
1322          dri2_ctx->dri_context =
1323             dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1324                                                      api,
1325                                                      dri_config,
1326                                                      shared,
1327                                                      dri2_ctx);
1328       }
1329    }
1330
1331    if (!dri2_ctx->dri_context)
1332       goto cleanup;
1333
1334    return &dri2_ctx->base;
1335
1336  cleanup:
1337    free(dri2_ctx);
1338    return NULL;
1339 }
1340
1341 /**
1342  * Called via eglDestroyContext(), drv->API.DestroyContext().
1343  */
1344 static EGLBoolean
1345 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1346 {
1347    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1348    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1349
1350    if (_eglPutContext(ctx)) {
1351       dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1352       free(dri2_ctx);
1353    }
1354
1355    return EGL_TRUE;
1356 }
1357
1358 EGLBoolean
1359 dri2_init_surface(_EGLSurface *surf, _EGLDisplay *disp, EGLint type,
1360         _EGLConfig *conf, const EGLint *attrib_list,
1361         EGLBoolean enable_out_fence, void *native_surface)
1362 {
1363    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1364    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1365
1366    dri2_surf->out_fence_fd = -1;
1367    dri2_surf->enable_out_fence = false;
1368    if (dri2_dpy->fence && dri2_dpy->fence->base.version >= 2 &&
1369        dri2_dpy->fence->get_capabilities &&
1370        (dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen) &
1371         __DRI_FENCE_CAP_NATIVE_FD)) {
1372       dri2_surf->enable_out_fence = enable_out_fence;
1373    }
1374
1375    return _eglInitSurface(surf, disp, type, conf, attrib_list, native_surface);
1376 }
1377
1378 static void
1379 dri2_surface_set_out_fence_fd( _EGLSurface *surf, int fence_fd)
1380 {
1381    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1382
1383    if (dri2_surf->out_fence_fd >= 0)
1384       close(dri2_surf->out_fence_fd);
1385
1386    dri2_surf->out_fence_fd = fence_fd;
1387 }
1388
1389 void
1390 dri2_fini_surface(_EGLSurface *surf)
1391 {
1392    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1393
1394    dri2_surface_set_out_fence_fd(surf, -1);
1395    dri2_surf->enable_out_fence = false;
1396 }
1397
1398 static EGLBoolean
1399 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
1400 {
1401    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1402
1403    if (!_eglPutSurface(surf))
1404       return EGL_TRUE;
1405
1406    return dri2_dpy->vtbl->destroy_surface(drv, disp, surf);
1407 }
1408
1409 static void
1410 dri2_surf_update_fence_fd(_EGLContext *ctx,
1411                           _EGLDisplay *disp, _EGLSurface *surf)
1412 {
1413    __DRIcontext *dri_ctx = dri2_egl_context(ctx)->dri_context;
1414    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1415    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1416    int fence_fd = -1;
1417    void *fence;
1418
1419    if (!dri2_surf->enable_out_fence)
1420       return;
1421
1422    fence = dri2_dpy->fence->create_fence_fd(dri_ctx, -1);
1423    if (fence) {
1424       fence_fd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
1425                                                fence);
1426       dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, fence);
1427    }
1428    dri2_surface_set_out_fence_fd(surf, fence_fd);
1429 }
1430
1431 EGLBoolean
1432 dri2_create_drawable(struct dri2_egl_display *dri2_dpy,
1433                      const __DRIconfig *config,
1434                      struct dri2_egl_surface *dri2_surf,
1435                      void *loaderPrivate)
1436 {
1437    __DRIcreateNewDrawableFunc createNewDrawable;
1438
1439    if (dri2_dpy->image_driver)
1440       createNewDrawable = dri2_dpy->image_driver->createNewDrawable;
1441    else if (dri2_dpy->dri2)
1442       createNewDrawable = dri2_dpy->dri2->createNewDrawable;
1443    else if (dri2_dpy->swrast)
1444       createNewDrawable = dri2_dpy->swrast->createNewDrawable;
1445    else
1446       return _eglError(EGL_BAD_ALLOC, "no createNewDrawable");
1447
1448    dri2_surf->dri_drawable = (*createNewDrawable)(dri2_dpy->dri_screen,
1449                                                   config, loaderPrivate);
1450    if (dri2_surf->dri_drawable == NULL)
1451       return _eglError(EGL_BAD_ALLOC, "createNewDrawable");
1452
1453    return EGL_TRUE;
1454 }
1455
1456 /**
1457  * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1458  */
1459 static EGLBoolean
1460 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1461                   _EGLSurface *rsurf, _EGLContext *ctx)
1462 {
1463    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1464    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1465    _EGLDisplay *old_disp = NULL;
1466    struct dri2_egl_display *old_dri2_dpy = NULL;
1467    _EGLContext *old_ctx;
1468    _EGLSurface *old_dsurf, *old_rsurf;
1469    _EGLSurface *tmp_dsurf, *tmp_rsurf;
1470    __DRIdrawable *ddraw, *rdraw;
1471    __DRIcontext *cctx;
1472    EGLBoolean unbind;
1473
1474    if (!dri2_dpy)
1475       return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1476
1477    /* make new bindings */
1478    if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1479       /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1480       return EGL_FALSE;
1481    }
1482
1483    if (old_ctx) {
1484       old_disp = old_ctx->Resource.Display;
1485       old_dri2_dpy = dri2_egl_display(old_disp);
1486    }
1487
1488    /* flush before context switch */
1489    if (old_ctx)
1490       dri2_gl_flush();
1491
1492    ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1493    rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1494    cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1495
1496    if (old_ctx) {
1497       __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1498
1499       if (old_dsurf)
1500          dri2_surf_update_fence_fd(old_ctx, disp, old_dsurf);
1501
1502       /* Disable shared buffer mode */
1503       if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
1504           old_dri2_dpy->vtbl->set_shared_buffer_mode) {
1505          old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, false);
1506       }
1507
1508       dri2_dpy->core->unbindContext(old_cctx);
1509    }
1510
1511    unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1512
1513    if (!unbind && !dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1514       /* undo the previous _eglBindContext */
1515       _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1516       assert(&dri2_ctx->base == ctx &&
1517              tmp_dsurf == dsurf &&
1518              tmp_rsurf == rsurf);
1519
1520       if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
1521           old_dri2_dpy->vtbl->set_shared_buffer_mode) {
1522          old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, true);
1523       }
1524
1525       _eglPutSurface(dsurf);
1526       _eglPutSurface(rsurf);
1527       _eglPutContext(ctx);
1528
1529       _eglPutSurface(old_dsurf);
1530       _eglPutSurface(old_rsurf);
1531       _eglPutContext(old_ctx);
1532
1533       /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1534        * setting the error to EGL_BAD_MATCH is surely better than leaving it
1535        * as EGL_SUCCESS.
1536        */
1537       return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1538    }
1539
1540    dri2_destroy_surface(drv, disp, old_dsurf);
1541    dri2_destroy_surface(drv, disp, old_rsurf);
1542
1543    if (!unbind)
1544       dri2_dpy->ref_count++;
1545
1546    if (old_ctx) {
1547       dri2_destroy_context(drv, disp, old_ctx);
1548       dri2_display_release(old_disp);
1549    }
1550
1551    if (dsurf && _eglSurfaceHasMutableRenderBuffer(dsurf) &&
1552        dri2_dpy->vtbl->set_shared_buffer_mode) {
1553       /* Always update the shared buffer mode. This is obviously needed when
1554        * the active EGL_RENDER_BUFFER is EGL_SINGLE_BUFFER. When
1555        * EGL_RENDER_BUFFER is EGL_BACK_BUFFER, the update protects us in the
1556        * case where external non-EGL API may have changed window's shared
1557        * buffer mode since we last saw it.
1558        */
1559       bool mode = (dsurf->ActiveRenderBuffer == EGL_SINGLE_BUFFER);
1560       dri2_dpy->vtbl->set_shared_buffer_mode(disp, dsurf, mode);
1561    }
1562
1563    return EGL_TRUE;
1564 }
1565
1566 __DRIdrawable *
1567 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1568 {
1569    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1570
1571    return dri2_surf->dri_drawable;
1572 }
1573
1574 /*
1575  * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1576  */
1577 static _EGLProc
1578 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1579 {
1580    return _glapi_get_proc_address(procname);
1581 }
1582
1583 static _EGLSurface*
1584 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
1585                            _EGLConfig *conf, void *native_window,
1586                            const EGLint *attrib_list)
1587 {
1588    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1589    return dri2_dpy->vtbl->create_window_surface(drv, disp, conf, native_window,
1590                                                 attrib_list);
1591 }
1592
1593 static _EGLSurface*
1594 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
1595                            _EGLConfig *conf, void *native_pixmap,
1596                            const EGLint *attrib_list)
1597 {
1598    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1599    return dri2_dpy->vtbl->create_pixmap_surface(drv, disp, conf, native_pixmap,
1600                                                 attrib_list);
1601 }
1602
1603 static _EGLSurface*
1604 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
1605                            _EGLConfig *conf, const EGLint *attrib_list)
1606 {
1607    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1608    return dri2_dpy->vtbl->create_pbuffer_surface(drv, disp, conf, attrib_list);
1609 }
1610
1611 static EGLBoolean
1612 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1613                    EGLint interval)
1614 {
1615    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1616    if (!dri2_dpy->vtbl->swap_interval)
1617       return EGL_TRUE;
1618    return dri2_dpy->vtbl->swap_interval(drv, disp, surf, interval);
1619 }
1620
1621 /**
1622  * Asks the client API to flush any rendering to the drawable so that we can
1623  * do our swapbuffers.
1624  */
1625 void
1626 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1627 {
1628    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1629    __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1630
1631    if (dri2_dpy->flush) {
1632       if (dri2_dpy->flush->base.version >= 4) {
1633          /* We know there's a current context because:
1634           *
1635           *     "If surface is not bound to the calling thread’s current
1636           *      context, an EGL_BAD_SURFACE error is generated."
1637          */
1638          _EGLContext *ctx = _eglGetCurrentContext();
1639          struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1640
1641          /* From the EGL 1.4 spec (page 52):
1642           *
1643           *     "The contents of ancillary buffers are always undefined
1644           *      after calling eglSwapBuffers."
1645           */
1646          dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1647                                            dri_drawable,
1648                                            __DRI2_FLUSH_DRAWABLE |
1649                                            __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1650                                            __DRI2_THROTTLE_SWAPBUFFER);
1651       } else {
1652          dri2_dpy->flush->flush(dri_drawable);
1653       }
1654    }
1655 }
1656
1657 static EGLBoolean
1658 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
1659 {
1660    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1661    _EGLContext *ctx = _eglGetCurrentContext();
1662
1663    if (ctx && surf)
1664       dri2_surf_update_fence_fd(ctx, disp, surf);
1665    return dri2_dpy->vtbl->swap_buffers(drv, disp, surf);
1666 }
1667
1668 static EGLBoolean
1669 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *disp,
1670                               _EGLSurface *surf,
1671                               const EGLint *rects, EGLint n_rects)
1672 {
1673    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1674    _EGLContext *ctx = _eglGetCurrentContext();
1675
1676    if (ctx && surf)
1677       dri2_surf_update_fence_fd(ctx, disp, surf);
1678    return dri2_dpy->vtbl->swap_buffers_with_damage(drv, disp, surf,
1679                                                    rects, n_rects);
1680 }
1681
1682 static EGLBoolean
1683 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1684                          EGLint numRects, const EGLint *rects)
1685 {
1686    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1687    return dri2_dpy->vtbl->swap_buffers_region(drv, disp, surf, numRects, rects);
1688 }
1689
1690 static EGLBoolean
1691 dri2_set_damage_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1692                        EGLint *rects, EGLint n_rects)
1693 {
1694    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1695    return dri2_dpy->vtbl->set_damage_region(drv, disp, surf, rects, n_rects);
1696 }
1697
1698 static EGLBoolean
1699 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1700                      EGLint x, EGLint y, EGLint width, EGLint height)
1701 {
1702    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1703    return dri2_dpy->vtbl->post_sub_buffer(drv, disp, surf, x, y, width, height);
1704 }
1705
1706 static EGLBoolean
1707 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1708                   void *native_pixmap_target)
1709 {
1710    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1711    return dri2_dpy->vtbl->copy_buffers(drv, disp, surf, native_pixmap_target);
1712 }
1713
1714 static EGLint
1715 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
1716 {
1717    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1718    return dri2_dpy->vtbl->query_buffer_age(drv, disp, surf);
1719 }
1720
1721 static EGLBoolean
1722 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1723 {
1724    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1725    _EGLSurface *surf = ctx->DrawSurface;
1726    __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1727
1728    (void) drv;
1729
1730    /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1731     * we need to copy fake to real here.*/
1732
1733    if (dri2_dpy->flush != NULL)
1734       dri2_dpy->flush->flush(dri_drawable);
1735
1736    return EGL_TRUE;
1737 }
1738
1739 static EGLBoolean
1740 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1741 {
1742    (void) drv;
1743    (void) disp;
1744
1745    if (engine != EGL_CORE_NATIVE_ENGINE)
1746       return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1747    /* glXWaitX(); */
1748
1749    return EGL_TRUE;
1750 }
1751
1752 static EGLBoolean
1753 dri2_bind_tex_image(_EGLDriver *drv,
1754                     _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1755 {
1756    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1757    struct dri2_egl_context *dri2_ctx;
1758    _EGLContext *ctx;
1759    GLint format, target;
1760    __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1761
1762    ctx = _eglGetCurrentContext();
1763    dri2_ctx = dri2_egl_context(ctx);
1764
1765    if (!_eglBindTexImage(drv, disp, surf, buffer))
1766       return EGL_FALSE;
1767
1768    switch (surf->TextureFormat) {
1769    case EGL_TEXTURE_RGB:
1770       format = __DRI_TEXTURE_FORMAT_RGB;
1771       break;
1772    case EGL_TEXTURE_RGBA:
1773       format = __DRI_TEXTURE_FORMAT_RGBA;
1774       break;
1775    default:
1776       assert(!"Unexpected texture format in dri2_bind_tex_image()");
1777       format = __DRI_TEXTURE_FORMAT_RGBA;
1778    }
1779
1780    switch (surf->TextureTarget) {
1781    case EGL_TEXTURE_2D:
1782       target = GL_TEXTURE_2D;
1783       break;
1784    default:
1785       target = GL_TEXTURE_2D;
1786       assert(!"Unexpected texture target in dri2_bind_tex_image()");
1787    }
1788
1789    dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
1790                                        target, format,
1791                                        dri_drawable);
1792
1793    return EGL_TRUE;
1794 }
1795
1796 static EGLBoolean
1797 dri2_release_tex_image(_EGLDriver *drv,
1798                        _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1799 {
1800    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1801    struct dri2_egl_context *dri2_ctx;
1802    _EGLContext *ctx;
1803    GLint  target;
1804    __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1805
1806    ctx = _eglGetCurrentContext();
1807    dri2_ctx = dri2_egl_context(ctx);
1808
1809    if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1810       return EGL_FALSE;
1811
1812    switch (surf->TextureTarget) {
1813    case EGL_TEXTURE_2D:
1814       target = GL_TEXTURE_2D;
1815       break;
1816    default:
1817       assert(!"missing texture target");
1818    }
1819
1820    if (dri2_dpy->tex_buffer->base.version >= 3 &&
1821        dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1822       dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
1823                                              target, dri_drawable);
1824    }
1825
1826    return EGL_TRUE;
1827 }
1828
1829 static _EGLImage*
1830 dri2_create_image(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx,
1831                   EGLenum target, EGLClientBuffer buffer,
1832                   const EGLint *attr_list)
1833 {
1834    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1835    return dri2_dpy->vtbl->create_image(drv, disp, ctx, target, buffer,
1836                                        attr_list);
1837 }
1838
1839 static _EGLImage *
1840 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1841 {
1842    struct dri2_egl_image *dri2_img;
1843
1844    if (dri_image == NULL) {
1845       _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1846       return NULL;
1847    }
1848
1849    dri2_img = malloc(sizeof *dri2_img);
1850    if (!dri2_img) {
1851       _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1852       return NULL;
1853    }
1854
1855    _eglInitImage(&dri2_img->base, disp);
1856
1857    dri2_img->dri_image = dri_image;
1858
1859    return &dri2_img->base;
1860 }
1861
1862 /**
1863  * Translate a DRI Image extension error code into an EGL error code.
1864  */
1865 static EGLint
1866 egl_error_from_dri_image_error(int dri_error)
1867 {
1868    switch (dri_error) {
1869    case __DRI_IMAGE_ERROR_SUCCESS:
1870       return EGL_SUCCESS;
1871    case __DRI_IMAGE_ERROR_BAD_ALLOC:
1872       return EGL_BAD_ALLOC;
1873    case __DRI_IMAGE_ERROR_BAD_MATCH:
1874       return EGL_BAD_MATCH;
1875    case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1876       return EGL_BAD_PARAMETER;
1877    case __DRI_IMAGE_ERROR_BAD_ACCESS:
1878       return EGL_BAD_ACCESS;
1879    default:
1880       assert(!"unknown dri_error code");
1881       return EGL_BAD_ALLOC;
1882    }
1883 }
1884
1885 static _EGLImage *
1886 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1887                                    EGLClientBuffer buffer,
1888                                    const EGLint *attr_list)
1889 {
1890    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1891    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1892    GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1893    __DRIimage *dri_image;
1894
1895    if (renderbuffer == 0) {
1896       _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1897       return EGL_NO_IMAGE_KHR;
1898    }
1899
1900    if (!disp->Extensions.KHR_gl_renderbuffer_image) {
1901       _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1902       return EGL_NO_IMAGE_KHR;
1903    }
1904
1905    if (dri2_dpy->image->base.version >= 17 &&
1906        dri2_dpy->image->createImageFromRenderbuffer2) {
1907       unsigned error = ~0;
1908
1909       dri_image = dri2_dpy->image->createImageFromRenderbuffer2(
1910                dri2_ctx->dri_context, renderbuffer, NULL, &error);
1911
1912       assert(!!dri_image == (error == __DRI_IMAGE_ERROR_SUCCESS));
1913
1914       if (!dri_image) {
1915          _eglError(egl_error_from_dri_image_error(error), "dri2_create_image_khr");
1916          return EGL_NO_IMAGE_KHR;
1917       }
1918    } else {
1919       dri_image = dri2_dpy->image->createImageFromRenderbuffer(
1920                dri2_ctx->dri_context, renderbuffer, NULL);
1921       if (!dri_image) {
1922          _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1923          return EGL_NO_IMAGE_KHR;
1924       }
1925    }
1926
1927    return dri2_create_image_from_dri(disp, dri_image);
1928 }
1929
1930 #ifdef HAVE_WAYLAND_PLATFORM
1931
1932 /* This structure describes how a wl_buffer maps to one or more
1933  * __DRIimages.  A wl_drm_buffer stores the wl_drm format code and the
1934  * offsets and strides of the planes in the buffer.  This table maps a
1935  * wl_drm format code to a description of the planes in the buffer
1936  * that lets us create a __DRIimage for each of the planes. */
1937
1938 static const struct wl_drm_components_descriptor {
1939    uint32_t dri_components;
1940    EGLint components;
1941    int nplanes;
1942 } wl_drm_components[] = {
1943    { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1944    { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1945    { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1946    { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1947    { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1948 };
1949
1950 static _EGLImage *
1951 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1952                                     EGLClientBuffer _buffer,
1953                                     const EGLint *attr_list)
1954 {
1955    struct wl_drm_buffer *buffer;
1956    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1957    const struct wl_drm_components_descriptor *f;
1958    __DRIimage *dri_image;
1959    _EGLImageAttribs attrs;
1960    int32_t plane;
1961
1962    buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1963                                    (struct wl_resource *) _buffer);
1964    if (!buffer)
1965        return NULL;
1966
1967    if (!_eglParseImageAttribList(&attrs, disp, attr_list))
1968       return NULL;
1969
1970    plane = attrs.PlaneWL;
1971    f = buffer->driver_format;
1972    if (plane < 0 || plane >= f->nplanes) {
1973       _eglError(EGL_BAD_PARAMETER,
1974                 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1975       return NULL;
1976    }
1977
1978    dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1979    if (dri_image == NULL && plane == 0)
1980       dri_image = dri2_dpy->image->dupImage(buffer->driver_buffer, NULL);
1981    if (dri_image == NULL) {
1982       _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1983       return NULL;
1984    }
1985
1986    return dri2_create_image_from_dri(disp, dri_image);
1987 }
1988 #endif
1989
1990 static EGLBoolean
1991 dri2_get_sync_values_chromium(_EGLDisplay *disp, _EGLSurface *surf,
1992                               EGLuint64KHR *ust, EGLuint64KHR *msc,
1993                               EGLuint64KHR *sbc)
1994 {
1995    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1996    return dri2_dpy->vtbl->get_sync_values(disp, surf, ust, msc, sbc);
1997 }
1998
1999 /**
2000  * Set the error code after a call to
2001  * dri2_egl_image::dri_image::createImageFromTexture.
2002  */
2003 static void
2004 dri2_create_image_khr_texture_error(int dri_error)
2005 {
2006    EGLint egl_error = egl_error_from_dri_image_error(dri_error);
2007
2008    if (egl_error != EGL_SUCCESS)
2009       _eglError(egl_error, "dri2_create_image_khr_texture");
2010 }
2011
2012 static _EGLImage *
2013 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
2014                                    EGLenum target,
2015                                    EGLClientBuffer buffer,
2016                                    const EGLint *attr_list)
2017 {
2018    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2019    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2020    struct dri2_egl_image *dri2_img;
2021    GLuint texture = (GLuint) (uintptr_t) buffer;
2022    _EGLImageAttribs attrs;
2023    GLuint depth;
2024    GLenum gl_target;
2025    unsigned error;
2026
2027    if (texture == 0) {
2028       _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2029       return EGL_NO_IMAGE_KHR;
2030    }
2031
2032    if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2033       return EGL_NO_IMAGE_KHR;
2034
2035    switch (target) {
2036    case EGL_GL_TEXTURE_2D_KHR:
2037       if (!disp->Extensions.KHR_gl_texture_2D_image) {
2038          _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2039          return EGL_NO_IMAGE_KHR;
2040       }
2041       depth = 0;
2042       gl_target = GL_TEXTURE_2D;
2043       break;
2044    case EGL_GL_TEXTURE_3D_KHR:
2045       if (!disp->Extensions.KHR_gl_texture_3D_image) {
2046          _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2047          return EGL_NO_IMAGE_KHR;
2048       }
2049
2050       depth = attrs.GLTextureZOffset;
2051       gl_target = GL_TEXTURE_3D;
2052       break;
2053    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2054    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2055    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2056    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2057    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2058    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2059       if (!disp->Extensions.KHR_gl_texture_cubemap_image) {
2060          _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2061          return EGL_NO_IMAGE_KHR;
2062       }
2063
2064       depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
2065       gl_target = GL_TEXTURE_CUBE_MAP;
2066       break;
2067    default:
2068       unreachable("Unexpected target in dri2_create_image_khr_texture()");
2069       return EGL_NO_IMAGE_KHR;
2070    }
2071
2072    dri2_img = malloc(sizeof *dri2_img);
2073    if (!dri2_img) {
2074       _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2075       return EGL_NO_IMAGE_KHR;
2076    }
2077
2078    _eglInitImage(&dri2_img->base, disp);
2079
2080    dri2_img->dri_image =
2081       dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
2082                                               gl_target,
2083                                               texture,
2084                                               depth,
2085                                               attrs.GLTextureLevel,
2086                                               &error,
2087                                               dri2_img);
2088    dri2_create_image_khr_texture_error(error);
2089
2090    if (!dri2_img->dri_image) {
2091       free(dri2_img);
2092       return EGL_NO_IMAGE_KHR;
2093    }
2094    return &dri2_img->base;
2095 }
2096
2097 static EGLBoolean
2098 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
2099                    EGLint attribute, EGLint *value)
2100 {
2101    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2102    if (!dri2_dpy->vtbl->query_surface)
2103       return _eglQuerySurface(drv, disp, surf, attribute, value);
2104    return dri2_dpy->vtbl->query_surface(drv, disp, surf, attribute, value);
2105 }
2106
2107 static struct wl_buffer*
2108 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *disp,
2109                                       _EGLImage *img)
2110 {
2111    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2112    return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, disp, img);
2113 }
2114
2115 #ifdef HAVE_LIBDRM
2116 static _EGLImage *
2117 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2118                                   EGLClientBuffer buffer, const EGLint *attr_list)
2119 {
2120    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2121    EGLint format, name, pitch;
2122    _EGLImageAttribs attrs;
2123    __DRIimage *dri_image;
2124
2125    name = (EGLint) (uintptr_t) buffer;
2126
2127    if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2128       return NULL;
2129
2130    if (attrs.Width <= 0 || attrs.Height <= 0 ||
2131        attrs.DRMBufferStrideMESA <= 0) {
2132       _eglError(EGL_BAD_PARAMETER,
2133                 "bad width, height or stride");
2134       return NULL;
2135    }
2136
2137    switch (attrs.DRMBufferFormatMESA) {
2138    case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2139       format = __DRI_IMAGE_FORMAT_ARGB8888;
2140       pitch = attrs.DRMBufferStrideMESA;
2141       break;
2142    default:
2143       _eglError(EGL_BAD_PARAMETER,
2144                 "dri2_create_image_khr: unsupported pixmap depth");
2145       return NULL;
2146    }
2147
2148    dri_image =
2149       dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
2150                                            attrs.Width,
2151                                            attrs.Height,
2152                                            format,
2153                                            name,
2154                                            pitch,
2155                                            NULL);
2156
2157    return dri2_create_image_from_dri(disp, dri_image);
2158 }
2159
2160 static EGLBoolean
2161 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
2162 {
2163    /**
2164      * The spec says:
2165      *
2166      * "Required attributes and their values are as follows:
2167      *
2168      *  * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
2169      *
2170      *  * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
2171      *    by drm_fourcc.h and used as the pixel_format parameter of the
2172      *    drm_mode_fb_cmd2 ioctl."
2173      *
2174      * and
2175      *
2176      * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2177      *    incomplete, EGL_BAD_PARAMETER is generated."
2178      */
2179    if (attrs->Width <= 0 || attrs->Height <= 0 ||
2180        !attrs->DMABufFourCC.IsPresent)
2181       return _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
2182
2183    /**
2184     * Also:
2185     *
2186     * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
2187     *  specified for a plane's pitch or offset isn't supported by EGL,
2188     *  EGL_BAD_ACCESS is generated."
2189     */
2190    for (unsigned i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
2191       if (attrs->DMABufPlanePitches[i].IsPresent &&
2192           attrs->DMABufPlanePitches[i].Value <= 0)
2193          return _eglError(EGL_BAD_ACCESS, "invalid pitch");
2194    }
2195
2196    /**
2197     * If <target> is EGL_LINUX_DMA_BUF_EXT, both or neither of the following
2198     * attribute values may be given.
2199     *
2200     * This is referring to EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT and
2201     * EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, and the same for other planes.
2202     */
2203    for (unsigned i = 0; i < DMA_BUF_MAX_PLANES; ++i) {
2204       if (attrs->DMABufPlaneModifiersLo[i].IsPresent !=
2205           attrs->DMABufPlaneModifiersHi[i].IsPresent)
2206          return _eglError(EGL_BAD_PARAMETER, "modifier attribute lo or hi missing");
2207    }
2208
2209    /* Although the EGL_EXT_image_dma_buf_import_modifiers spec doesn't
2210     * mandate it, we only accept the same modifier across all planes. */
2211    for (unsigned i = 1; i < DMA_BUF_MAX_PLANES; ++i) {
2212       if (attrs->DMABufPlaneFds[i].IsPresent) {
2213          if ((attrs->DMABufPlaneModifiersLo[0].IsPresent !=
2214                attrs->DMABufPlaneModifiersLo[i].IsPresent) ||
2215              (attrs->DMABufPlaneModifiersLo[0].Value !=
2216                attrs->DMABufPlaneModifiersLo[i].Value) ||
2217              (attrs->DMABufPlaneModifiersHi[0].Value !=
2218                attrs->DMABufPlaneModifiersHi[i].Value))
2219             return _eglError(EGL_BAD_PARAMETER, "modifier attributes not equal");
2220       }
2221    }
2222
2223    return EGL_TRUE;
2224 }
2225
2226 /* Returns the total number of planes for the format or zero if it isn't a
2227  * valid fourcc format.
2228  */
2229 static unsigned
2230 dri2_num_fourcc_format_planes(EGLint format)
2231 {
2232    switch (format) {
2233    case DRM_FORMAT_R8:
2234    case DRM_FORMAT_RG88:
2235    case DRM_FORMAT_GR88:
2236    case DRM_FORMAT_R16:
2237    case DRM_FORMAT_GR1616:
2238    case DRM_FORMAT_RGB332:
2239    case DRM_FORMAT_BGR233:
2240    case DRM_FORMAT_XRGB4444:
2241    case DRM_FORMAT_XBGR4444:
2242    case DRM_FORMAT_RGBX4444:
2243    case DRM_FORMAT_BGRX4444:
2244    case DRM_FORMAT_ARGB4444:
2245    case DRM_FORMAT_ABGR4444:
2246    case DRM_FORMAT_RGBA4444:
2247    case DRM_FORMAT_BGRA4444:
2248    case DRM_FORMAT_XRGB1555:
2249    case DRM_FORMAT_XBGR1555:
2250    case DRM_FORMAT_RGBX5551:
2251    case DRM_FORMAT_BGRX5551:
2252    case DRM_FORMAT_ARGB1555:
2253    case DRM_FORMAT_ABGR1555:
2254    case DRM_FORMAT_RGBA5551:
2255    case DRM_FORMAT_BGRA5551:
2256    case DRM_FORMAT_RGB565:
2257    case DRM_FORMAT_BGR565:
2258    case DRM_FORMAT_RGB888:
2259    case DRM_FORMAT_BGR888:
2260    case DRM_FORMAT_XRGB8888:
2261    case DRM_FORMAT_XBGR8888:
2262    case DRM_FORMAT_RGBX8888:
2263    case DRM_FORMAT_BGRX8888:
2264    case DRM_FORMAT_ARGB8888:
2265    case DRM_FORMAT_ABGR8888:
2266    case DRM_FORMAT_RGBA8888:
2267    case DRM_FORMAT_BGRA8888:
2268    case DRM_FORMAT_XRGB2101010:
2269    case DRM_FORMAT_XBGR2101010:
2270    case DRM_FORMAT_RGBX1010102:
2271    case DRM_FORMAT_BGRX1010102:
2272    case DRM_FORMAT_ARGB2101010:
2273    case DRM_FORMAT_ABGR2101010:
2274    case DRM_FORMAT_RGBA1010102:
2275    case DRM_FORMAT_BGRA1010102:
2276    case DRM_FORMAT_YUYV:
2277    case DRM_FORMAT_YVYU:
2278    case DRM_FORMAT_UYVY:
2279    case DRM_FORMAT_VYUY:
2280    case DRM_FORMAT_AYUV:
2281    case DRM_FORMAT_XYUV8888:
2282       return 1;
2283
2284    case DRM_FORMAT_NV12:
2285    case DRM_FORMAT_NV21:
2286    case DRM_FORMAT_NV16:
2287    case DRM_FORMAT_NV61:
2288    case DRM_FORMAT_P010:
2289    case DRM_FORMAT_P012:
2290    case DRM_FORMAT_P016:
2291       return 2;
2292
2293    case DRM_FORMAT_YUV410:
2294    case DRM_FORMAT_YVU410:
2295    case DRM_FORMAT_YUV411:
2296    case DRM_FORMAT_YVU411:
2297    case DRM_FORMAT_YUV420:
2298    case DRM_FORMAT_YVU420:
2299    case DRM_FORMAT_YUV422:
2300    case DRM_FORMAT_YVU422:
2301    case DRM_FORMAT_YUV444:
2302    case DRM_FORMAT_YVU444:
2303       return 3;
2304
2305    default:
2306       return 0;
2307    }
2308 }
2309
2310 /* Returns the total number of file descriptors. Zero indicates an error. */
2311 static unsigned
2312 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
2313 {
2314    unsigned plane_n = dri2_num_fourcc_format_planes(attrs->DMABufFourCC.Value);
2315    if (plane_n == 0) {
2316       _eglError(EGL_BAD_MATCH, "unknown drm fourcc format");
2317       return 0;
2318    }
2319
2320    for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; i++) {
2321       /**
2322        * The modifiers extension spec says:
2323        *
2324        * "Modifiers may modify any attribute of a buffer import, including
2325        *  but not limited to adding extra planes to a format which
2326        *  otherwise does not have those planes. As an example, a modifier
2327        *  may add a plane for an external compression buffer to a
2328        *  single-plane format. The exact meaning and effect of any
2329        *  modifier is canonically defined by drm_fourcc.h, not as part of
2330        *  this extension."
2331        */
2332       if (attrs->DMABufPlaneModifiersLo[i].IsPresent &&
2333           attrs->DMABufPlaneModifiersHi[i].IsPresent) {
2334          plane_n = i + 1;
2335       }
2336    }
2337
2338    /**
2339      * The spec says:
2340      *
2341      * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2342      *    incomplete, EGL_BAD_PARAMETER is generated."
2343      */
2344    for (unsigned i = 0; i < plane_n; ++i) {
2345       if (!attrs->DMABufPlaneFds[i].IsPresent ||
2346           !attrs->DMABufPlaneOffsets[i].IsPresent ||
2347           !attrs->DMABufPlanePitches[i].IsPresent) {
2348          _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2349          return 0;
2350       }
2351    }
2352
2353    /**
2354     * The spec also says:
2355     *
2356     * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2357     *  attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2358     *  generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2359     *  or EGL_DMA_BUF_PLANE3_* attributes are specified."
2360     */
2361    for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; ++i) {
2362       if (attrs->DMABufPlaneFds[i].IsPresent ||
2363           attrs->DMABufPlaneOffsets[i].IsPresent ||
2364           attrs->DMABufPlanePitches[i].IsPresent) {
2365          _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2366          return 0;
2367       }
2368    }
2369
2370    return plane_n;
2371 }
2372
2373 static EGLBoolean
2374 dri2_query_dma_buf_formats(_EGLDriver *drv, _EGLDisplay *disp,
2375                             EGLint max, EGLint *formats, EGLint *count)
2376 {
2377    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2378    if (max < 0 || (max > 0 && formats == NULL))
2379       return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2380
2381    if (dri2_dpy->image->base.version < 15 ||
2382        dri2_dpy->image->queryDmaBufFormats == NULL)
2383       return EGL_FALSE;
2384
2385    if (!dri2_dpy->image->queryDmaBufFormats(dri2_dpy->dri_screen, max,
2386                                             formats, count))
2387       return EGL_FALSE;
2388
2389    if (max > 0) {
2390       /* Assert that all of the formats returned are actually fourcc formats.
2391        * Some day, if we want the internal interface function to be able to
2392        * return the fake fourcc formats defined in dri_interface.h, we'll have
2393        * to do something more clever here to pair the list down to just real
2394        * fourcc formats so that we don't leak the fake internal ones.
2395        */
2396       for (int i = 0; i < *count; i++) {
2397          assert(dri2_num_fourcc_format_planes(formats[i]) > 0);
2398       }
2399    }
2400
2401    return EGL_TRUE;
2402 }
2403
2404 static EGLBoolean
2405 dri2_query_dma_buf_modifiers(_EGLDriver *drv, _EGLDisplay *disp, EGLint format,
2406                              EGLint max, EGLuint64KHR *modifiers,
2407                              EGLBoolean *external_only, EGLint *count)
2408 {
2409    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2410
2411    if (dri2_num_fourcc_format_planes(format) == 0)
2412       return _eglError(EGL_BAD_PARAMETER, "invalid fourcc format");
2413
2414    if (max < 0)
2415       return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2416
2417    if (max > 0 && modifiers == NULL)
2418       return _eglError(EGL_BAD_PARAMETER, "invalid modifiers array");
2419
2420    if (dri2_dpy->image->base.version < 15 ||
2421        dri2_dpy->image->queryDmaBufModifiers == NULL)
2422       return EGL_FALSE;
2423
2424    if (dri2_dpy->image->queryDmaBufModifiers(dri2_dpy->dri_screen, format,
2425                                              max, modifiers,
2426                                              (unsigned int *) external_only,
2427                                              count) == false)
2428       return _eglError(EGL_BAD_PARAMETER, "invalid format");
2429
2430    return EGL_TRUE;
2431 }
2432
2433 /**
2434  * The spec says:
2435  *
2436  * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2437  *  EGL will take a reference to the dma_buf(s) which it will release at any
2438  *  time while the EGLDisplay is initialized. It is the responsibility of the
2439  *  application to close the dma_buf file descriptors."
2440  *
2441  * Therefore we must never close or otherwise modify the file descriptors.
2442  */
2443 _EGLImage *
2444 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2445                           EGLClientBuffer buffer, const EGLint *attr_list)
2446 {
2447    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2448    _EGLImage *res;
2449    _EGLImageAttribs attrs;
2450    __DRIimage *dri_image;
2451    unsigned num_fds;
2452    int fds[DMA_BUF_MAX_PLANES];
2453    int pitches[DMA_BUF_MAX_PLANES];
2454    int offsets[DMA_BUF_MAX_PLANES];
2455    uint64_t modifier;
2456    bool has_modifier = false;
2457    unsigned error;
2458
2459    /**
2460     * The spec says:
2461     *
2462     * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2463     *     error EGL_BAD_PARAMETER is generated."
2464     */
2465    if (buffer != NULL) {
2466       _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2467       return NULL;
2468    }
2469
2470    if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2471       return NULL;
2472
2473    if (!dri2_check_dma_buf_attribs(&attrs))
2474       return NULL;
2475
2476    num_fds = dri2_check_dma_buf_format(&attrs);
2477    if (!num_fds)
2478       return NULL;
2479
2480    for (unsigned i = 0; i < num_fds; ++i) {
2481       fds[i] = attrs.DMABufPlaneFds[i].Value;
2482       pitches[i] = attrs.DMABufPlanePitches[i].Value;
2483       offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2484    }
2485
2486    /* dri2_check_dma_buf_attribs ensures that the modifier, if available,
2487     * will be present in attrs.DMABufPlaneModifiersLo[0] and
2488     * attrs.DMABufPlaneModifiersHi[0] */
2489    if (attrs.DMABufPlaneModifiersLo[0].IsPresent) {
2490       modifier = combine_u32_into_u64(attrs.DMABufPlaneModifiersHi[0].Value,
2491                                       attrs.DMABufPlaneModifiersLo[0].Value);
2492       has_modifier = true;
2493    }
2494
2495    if (has_modifier) {
2496       if (dri2_dpy->image->base.version < 15 ||
2497           dri2_dpy->image->createImageFromDmaBufs2 == NULL) {
2498          _eglError(EGL_BAD_MATCH, "unsupported dma_buf format modifier");
2499          return EGL_NO_IMAGE_KHR;
2500       }
2501       dri_image =
2502          dri2_dpy->image->createImageFromDmaBufs2(dri2_dpy->dri_screen,
2503             attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2504             modifier, fds, num_fds, pitches, offsets,
2505             attrs.DMABufYuvColorSpaceHint.Value,
2506             attrs.DMABufSampleRangeHint.Value,
2507             attrs.DMABufChromaHorizontalSiting.Value,
2508             attrs.DMABufChromaVerticalSiting.Value,
2509             &error,
2510             NULL);
2511    }
2512    else {
2513       dri_image =
2514          dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2515             attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2516             fds, num_fds, pitches, offsets,
2517             attrs.DMABufYuvColorSpaceHint.Value,
2518             attrs.DMABufSampleRangeHint.Value,
2519             attrs.DMABufChromaHorizontalSiting.Value,
2520             attrs.DMABufChromaVerticalSiting.Value,
2521             &error,
2522             NULL);
2523    }
2524    dri2_create_image_khr_texture_error(error);
2525
2526    if (!dri_image)
2527       return EGL_NO_IMAGE_KHR;
2528
2529    res = dri2_create_image_from_dri(disp, dri_image);
2530
2531    return res;
2532 }
2533 static _EGLImage *
2534 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2535                            const EGLint *attr_list)
2536 {
2537    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2538    struct dri2_egl_image *dri2_img;
2539    _EGLImageAttribs attrs;
2540    unsigned int dri_use, valid_mask;
2541    int format;
2542
2543    (void) drv;
2544
2545    if (!attr_list) {
2546       _eglError(EGL_BAD_PARAMETER, __func__);
2547       return EGL_NO_IMAGE_KHR;
2548    }
2549
2550    if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2551       return EGL_NO_IMAGE_KHR;
2552
2553    if (attrs.Width <= 0 || attrs.Height <= 0) {
2554       _eglError(EGL_BAD_PARAMETER, __func__);
2555       return EGL_NO_IMAGE_KHR;
2556    }
2557
2558    switch (attrs.DRMBufferFormatMESA) {
2559    case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2560       format = __DRI_IMAGE_FORMAT_ARGB8888;
2561       break;
2562    default:
2563       _eglError(EGL_BAD_PARAMETER, __func__);
2564       return EGL_NO_IMAGE_KHR;
2565    }
2566
2567    valid_mask =
2568       EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2569       EGL_DRM_BUFFER_USE_SHARE_MESA |
2570       EGL_DRM_BUFFER_USE_CURSOR_MESA;
2571    if (attrs.DRMBufferUseMESA & ~valid_mask) {
2572       _eglError(EGL_BAD_PARAMETER, __func__);
2573       return EGL_NO_IMAGE_KHR;
2574    }
2575
2576    dri_use = 0;
2577    if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2578       dri_use |= __DRI_IMAGE_USE_SHARE;
2579    if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2580       dri_use |= __DRI_IMAGE_USE_SCANOUT;
2581    if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2582       dri_use |= __DRI_IMAGE_USE_CURSOR;
2583
2584    dri2_img = malloc(sizeof *dri2_img);
2585    if (!dri2_img) {
2586       _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2587       return EGL_NO_IMAGE_KHR;
2588    }
2589
2590    _eglInitImage(&dri2_img->base, disp);
2591
2592    dri2_img->dri_image =
2593       dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2594                                    attrs.Width, attrs.Height,
2595                                    format, dri_use, dri2_img);
2596    if (dri2_img->dri_image == NULL) {
2597       free(dri2_img);
2598        _eglError(EGL_BAD_ALLOC, "dri2_create_drm_image_mesa");
2599       return EGL_NO_IMAGE_KHR;
2600    }
2601
2602    return &dri2_img->base;
2603 }
2604
2605 static EGLBoolean
2606 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2607                           EGLint *name, EGLint *handle, EGLint *stride)
2608 {
2609    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2610    struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2611
2612    (void) drv;
2613
2614    if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2615                                             __DRI_IMAGE_ATTRIB_NAME, name))
2616       return _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2617
2618    if (handle)
2619       dri2_dpy->image->queryImage(dri2_img->dri_image,
2620                                   __DRI_IMAGE_ATTRIB_HANDLE, handle);
2621
2622    if (stride)
2623       dri2_dpy->image->queryImage(dri2_img->dri_image,
2624                                   __DRI_IMAGE_ATTRIB_STRIDE, stride);
2625
2626    return EGL_TRUE;
2627 }
2628
2629 /**
2630  * Checks if we can support EGL_MESA_image_dma_buf_export on this image.
2631
2632  * The spec provides a boolean return for the driver to reject exporting for
2633  * basically any reason, but doesn't specify any particular error cases.  For
2634  * now, we just fail if we don't have a DRM fourcc for the format.
2635  */
2636 static bool
2637 dri2_can_export_dma_buf_image(_EGLDisplay *disp, _EGLImage *img)
2638 {
2639    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2640    struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2641    EGLint fourcc;
2642
2643    if (!dri2_dpy->image->queryImage(dri2_img->dri_image,
2644                                     __DRI_IMAGE_ATTRIB_FOURCC, &fourcc)) {
2645       return false;
2646    }
2647
2648    return true;
2649 }
2650
2651 static EGLBoolean
2652 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2653                                      _EGLImage *img,
2654                                      EGLint *fourcc, EGLint *nplanes,
2655                                      EGLuint64KHR *modifiers)
2656 {
2657    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2658    struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2659
2660    (void) drv;
2661
2662    if (!dri2_can_export_dma_buf_image(disp, img))
2663       return EGL_FALSE;
2664
2665    if (nplanes)
2666       dri2_dpy->image->queryImage(dri2_img->dri_image,
2667                                   __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2668    if (fourcc)
2669       dri2_dpy->image->queryImage(dri2_img->dri_image,
2670                                   __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2671
2672    if (modifiers)
2673       *modifiers = 0;
2674
2675    return EGL_TRUE;
2676 }
2677
2678 static EGLBoolean
2679 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2680                                int *fds, EGLint *strides, EGLint *offsets)
2681 {
2682    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2683    struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2684    EGLint nplanes;
2685
2686    (void) drv;
2687
2688    if (!dri2_can_export_dma_buf_image(disp, img))
2689       return EGL_FALSE;
2690
2691    /* EGL_MESA_image_dma_buf_export spec says:
2692     *    "If the number of fds is less than the number of planes, then
2693     *    subsequent fd slots should contain -1."
2694     */
2695    if (fds) {
2696       /* Query nplanes so that we know how big the given array is. */
2697       dri2_dpy->image->queryImage(dri2_img->dri_image,
2698                                   __DRI_IMAGE_ATTRIB_NUM_PLANES, &nplanes);
2699       memset(fds, -1, nplanes * sizeof(int));
2700    }
2701
2702    /* rework later to provide multiple fds/strides/offsets */
2703    if (fds)
2704       dri2_dpy->image->queryImage(dri2_img->dri_image,
2705                                   __DRI_IMAGE_ATTRIB_FD, fds);
2706
2707    if (strides)
2708       dri2_dpy->image->queryImage(dri2_img->dri_image,
2709                                   __DRI_IMAGE_ATTRIB_STRIDE, strides);
2710
2711    if (offsets) {
2712       int img_offset;
2713       bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
2714                      __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
2715       if (ret)
2716          offsets[0] = img_offset;
2717       else
2718          offsets[0] = 0;
2719    }
2720
2721    return EGL_TRUE;
2722 }
2723
2724 #endif
2725
2726 _EGLImage *
2727 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2728                       _EGLContext *ctx, EGLenum target,
2729                       EGLClientBuffer buffer, const EGLint *attr_list)
2730 {
2731    (void) drv;
2732
2733    switch (target) {
2734    case EGL_GL_TEXTURE_2D_KHR:
2735    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2736    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2737    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2738    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2739    case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2740    case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2741    case EGL_GL_TEXTURE_3D_KHR:
2742       return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2743    case EGL_GL_RENDERBUFFER_KHR:
2744       return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2745 #ifdef HAVE_LIBDRM
2746    case EGL_DRM_BUFFER_MESA:
2747       return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2748    case EGL_LINUX_DMA_BUF_EXT:
2749       return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2750 #endif
2751 #ifdef HAVE_WAYLAND_PLATFORM
2752    case EGL_WAYLAND_BUFFER_WL:
2753       return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2754 #endif
2755    default:
2756       _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2757       return EGL_NO_IMAGE_KHR;
2758    }
2759 }
2760
2761 static EGLBoolean
2762 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2763 {
2764    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2765    struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2766
2767    (void) drv;
2768
2769    dri2_dpy->image->destroyImage(dri2_img->dri_image);
2770    free(dri2_img);
2771
2772    return EGL_TRUE;
2773 }
2774
2775 #ifdef HAVE_WAYLAND_PLATFORM
2776
2777 static void
2778 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2779                          struct wl_drm_buffer *buffer)
2780 {
2781    _EGLDisplay *disp = user_data;
2782    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2783    __DRIimage *img;
2784    int dri_components = 0;
2785
2786    if (fd == -1)
2787       img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2788                                                   buffer->width,
2789                                                   buffer->height,
2790                                                   buffer->format,
2791                                                   (int*)&name, 1,
2792                                                   buffer->stride,
2793                                                   buffer->offset,
2794                                                   NULL);
2795    else
2796       img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2797                                                 buffer->width,
2798                                                 buffer->height,
2799                                                 buffer->format,
2800                                                 &fd, 1,
2801                                                 buffer->stride,
2802                                                 buffer->offset,
2803                                                 NULL);
2804
2805    if (img == NULL)
2806       return;
2807
2808    dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2809
2810    buffer->driver_format = NULL;
2811    for (int i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2812       if (wl_drm_components[i].dri_components == dri_components)
2813          buffer->driver_format = &wl_drm_components[i];
2814
2815    if (buffer->driver_format == NULL)
2816       dri2_dpy->image->destroyImage(img);
2817    else
2818       buffer->driver_buffer = img;
2819 }
2820
2821 static void
2822 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2823 {
2824    _EGLDisplay *disp = user_data;
2825    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2826
2827    dri2_dpy->image->destroyImage(buffer->driver_buffer);
2828 }
2829
2830 static EGLBoolean
2831 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2832                              struct wl_display *wl_dpy)
2833 {
2834    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2835    const struct wayland_drm_callbacks wl_drm_callbacks = {
2836       .authenticate = (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate,
2837       .reference_buffer = dri2_wl_reference_buffer,
2838       .release_buffer = dri2_wl_release_buffer,
2839       .is_format_supported = dri2_wl_is_format_supported
2840    };
2841    int flags = 0;
2842    uint64_t cap;
2843
2844    (void) drv;
2845
2846    if (dri2_dpy->wl_server_drm)
2847            return EGL_FALSE;
2848
2849    if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2850        cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2851        dri2_dpy->image->base.version >= 7 &&
2852        dri2_dpy->image->createImageFromFds != NULL)
2853       flags |= WAYLAND_DRM_PRIME;
2854
2855    dri2_dpy->wl_server_drm =
2856            wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2857                             &wl_drm_callbacks, disp, flags);
2858
2859    if (!dri2_dpy->wl_server_drm)
2860            return EGL_FALSE;
2861
2862 #ifdef HAVE_DRM_PLATFORM
2863    /* We have to share the wl_drm instance with gbm, so gbm can convert
2864     * wl_buffers to gbm bos. */
2865    if (dri2_dpy->gbm_dri)
2866       dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2867 #endif
2868
2869    return EGL_TRUE;
2870 }
2871
2872 static EGLBoolean
2873 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2874                                struct wl_display *wl_dpy)
2875 {
2876    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2877
2878    (void) drv;
2879
2880    if (!dri2_dpy->wl_server_drm)
2881            return EGL_FALSE;
2882
2883    wayland_drm_uninit(dri2_dpy->wl_server_drm);
2884    dri2_dpy->wl_server_drm = NULL;
2885
2886    return EGL_TRUE;
2887 }
2888
2889 static EGLBoolean
2890 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2891                              struct wl_resource *buffer_resource,
2892                              EGLint attribute, EGLint *value)
2893 {
2894    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2895    struct wl_drm_buffer *buffer;
2896    const struct wl_drm_components_descriptor *format;
2897
2898    buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2899    if (!buffer)
2900       return EGL_FALSE;
2901
2902    format = buffer->driver_format;
2903    switch (attribute) {
2904    case EGL_TEXTURE_FORMAT:
2905       *value = format->components;
2906       return EGL_TRUE;
2907    case EGL_WIDTH:
2908       *value = buffer->width;
2909       return EGL_TRUE;
2910    case EGL_HEIGHT:
2911       *value = buffer->height;
2912       return EGL_TRUE;
2913    }
2914
2915    return EGL_FALSE;
2916 }
2917 #endif
2918
2919 static void
2920 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2921 {
2922    p_atomic_inc(&sync->refcount);
2923 }
2924
2925 static void
2926 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2927                     struct dri2_egl_sync *dri2_sync)
2928 {
2929    if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2930       switch (dri2_sync->base.Type) {
2931       case EGL_SYNC_REUSABLE_KHR:
2932          cnd_destroy(&dri2_sync->cond);
2933          break;
2934       case EGL_SYNC_NATIVE_FENCE_ANDROID:
2935          if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
2936             close(dri2_sync->base.SyncFd);
2937          break;
2938       default:
2939          break;
2940       }
2941
2942       if (dri2_sync->fence)
2943          dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2944
2945       free(dri2_sync);
2946    }
2947 }
2948
2949 static _EGLSync *
2950 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *disp,
2951                  EGLenum type, const EGLAttrib *attrib_list)
2952 {
2953    _EGLContext *ctx = _eglGetCurrentContext();
2954    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2955    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2956    struct dri2_egl_sync *dri2_sync;
2957    EGLint ret;
2958    pthread_condattr_t attr;
2959
2960    dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2961    if (!dri2_sync) {
2962       _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2963       return NULL;
2964    }
2965
2966    if (!_eglInitSync(&dri2_sync->base, disp, type, attrib_list)) {
2967       free(dri2_sync);
2968       return NULL;
2969    }
2970
2971    switch (type) {
2972    case EGL_SYNC_FENCE_KHR:
2973       dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2974       if (!dri2_sync->fence) {
2975          /* Why did it fail? DRI doesn't return an error code, so we emit
2976           * a generic EGL error that doesn't communicate user error.
2977           */
2978          _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2979          free(dri2_sync);
2980          return NULL;
2981       }
2982       break;
2983
2984    case EGL_SYNC_CL_EVENT_KHR:
2985       dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2986                                  dri2_dpy->dri_screen,
2987                                  dri2_sync->base.CLEvent);
2988       /* this can only happen if the cl_event passed in is invalid. */
2989       if (!dri2_sync->fence) {
2990          _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2991          free(dri2_sync);
2992          return NULL;
2993       }
2994
2995       /* the initial status must be "signaled" if the cl_event is signaled */
2996       if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2997                                             dri2_sync->fence, 0, 0))
2998          dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2999       break;
3000
3001    case EGL_SYNC_REUSABLE_KHR:
3002       /* intialize attr */
3003       ret = pthread_condattr_init(&attr);
3004
3005       if (ret) {
3006          _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3007          free(dri2_sync);
3008          return NULL;
3009       }
3010
3011       /* change clock attribute to CLOCK_MONOTONIC */
3012       ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
3013
3014       if (ret) {
3015          _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3016          free(dri2_sync);
3017          return NULL;
3018       }
3019
3020       ret = pthread_cond_init(&dri2_sync->cond, &attr);
3021
3022       if (ret) {
3023          _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3024          free(dri2_sync);
3025          return NULL;
3026       }
3027
3028       /* initial status of reusable sync must be "unsignaled" */
3029       dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
3030       break;
3031
3032    case EGL_SYNC_NATIVE_FENCE_ANDROID:
3033       if (dri2_dpy->fence->create_fence_fd) {
3034          dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
3035                                     dri2_ctx->dri_context,
3036                                     dri2_sync->base.SyncFd);
3037       }
3038       if (!dri2_sync->fence) {
3039          _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
3040          free(dri2_sync);
3041          return NULL;
3042       }
3043       break;
3044    }
3045
3046    p_atomic_set(&dri2_sync->refcount, 1);
3047    return &dri2_sync->base;
3048 }
3049
3050 static EGLBoolean
3051 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3052 {
3053    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3054    struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3055    EGLint ret = EGL_TRUE;
3056    EGLint err;
3057
3058    /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
3059     * then unlock all threads possibly blocked by the reusable sync before
3060     * destroying it.
3061     */
3062    if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
3063        dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3064       dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3065       /* unblock all threads currently blocked by sync */
3066       err = cnd_broadcast(&dri2_sync->cond);
3067
3068       if (err) {
3069          _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
3070          ret = EGL_FALSE;
3071       }
3072    }
3073
3074    dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3075
3076    return ret;
3077 }
3078
3079 static EGLint
3080 dri2_dup_native_fence_fd(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3081 {
3082    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3083    struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3084
3085    assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
3086
3087    if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
3088       /* try to retrieve the actual native fence fd.. if rendering is
3089        * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
3090        */
3091       sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
3092                                                    dri2_sync->fence);
3093    }
3094
3095    if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
3096       /* if native fence fd still not created, return an error: */
3097       _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
3098       return EGL_NO_NATIVE_FENCE_FD_ANDROID;
3099    }
3100
3101    return dup(sync->SyncFd);
3102 }
3103
3104 static void
3105 dri2_set_blob_cache_funcs(_EGLDriver *drv, _EGLDisplay *disp,
3106                           EGLSetBlobFuncANDROID set,
3107                           EGLGetBlobFuncANDROID get)
3108 {
3109    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3110    dri2_dpy->blob->set_cache_funcs(dri2_dpy->dri_screen,
3111                                    disp->BlobCacheSet,
3112                                    disp->BlobCacheGet);
3113 }
3114
3115 static EGLint
3116 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync,
3117                       EGLint flags, EGLTime timeout)
3118 {
3119    _EGLContext *ctx = _eglGetCurrentContext();
3120    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3121    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3122    struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3123    unsigned wait_flags = 0;
3124
3125    EGLint ret = EGL_CONDITION_SATISFIED_KHR;
3126
3127    /* The EGL_KHR_fence_sync spec states:
3128     *
3129     *    "If no context is current for the bound API,
3130     *     the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
3131     */
3132    if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
3133       wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
3134
3135    /* the sync object should take a reference while waiting */
3136    dri2_egl_ref_sync(dri2_sync);
3137
3138    switch (sync->Type) {
3139    case EGL_SYNC_FENCE_KHR:
3140    case EGL_SYNC_NATIVE_FENCE_ANDROID:
3141    case EGL_SYNC_CL_EVENT_KHR:
3142       if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
3143                                          dri2_sync->fence, wait_flags,
3144                                          timeout))
3145          dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3146       else
3147          ret = EGL_TIMEOUT_EXPIRED_KHR;
3148       break;
3149
3150    case EGL_SYNC_REUSABLE_KHR:
3151       if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
3152           (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
3153          /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
3154          dri2_gl_flush();
3155       }
3156
3157       /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
3158       if (timeout == EGL_FOREVER_KHR) {
3159          mtx_lock(&dri2_sync->mutex);
3160          cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
3161          mtx_unlock(&dri2_sync->mutex);
3162       } else {
3163          /* if reusable sync has not been yet signaled */
3164          if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
3165             /* timespecs for cnd_timedwait */
3166             struct timespec current;
3167             struct timespec expire;
3168
3169             /* We override the clock to monotonic when creating the condition
3170              * variable. */
3171             clock_gettime(CLOCK_MONOTONIC, &current);
3172
3173             /* calculating when to expire */
3174             expire.tv_nsec = timeout % 1000000000L;
3175             expire.tv_sec = timeout / 1000000000L;
3176
3177             expire.tv_nsec += current.tv_nsec;
3178             expire.tv_sec += current.tv_sec;
3179
3180             /* expire.nsec now is a number between 0 and 1999999998 */
3181             if (expire.tv_nsec > 999999999L) {
3182                expire.tv_sec++;
3183                expire.tv_nsec -= 1000000000L;
3184             }
3185
3186             mtx_lock(&dri2_sync->mutex);
3187             ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
3188             mtx_unlock(&dri2_sync->mutex);
3189
3190             if (ret == thrd_busy) {
3191                if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3192                   ret = EGL_TIMEOUT_EXPIRED_KHR;
3193                } else {
3194                   _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
3195                   ret = EGL_FALSE;
3196                }
3197             }
3198          }
3199       }
3200       break;
3201   }
3202   dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3203
3204   return ret;
3205 }
3206
3207 static EGLBoolean
3208 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync,
3209                       EGLenum mode)
3210 {
3211    struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3212    EGLint ret;
3213
3214    if (sync->Type != EGL_SYNC_REUSABLE_KHR)
3215       return _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
3216
3217    if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR)
3218       return _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
3219
3220    dri2_sync->base.SyncStatus = mode;
3221
3222    if (mode == EGL_SIGNALED_KHR) {
3223       ret = cnd_broadcast(&dri2_sync->cond);
3224
3225       /* fail to broadcast */
3226       if (ret)
3227          return _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
3228    }
3229
3230    return EGL_TRUE;
3231 }
3232
3233 static EGLint
3234 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3235 {
3236    _EGLContext *ctx = _eglGetCurrentContext();
3237    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3238    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3239    struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3240
3241    dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
3242                                      dri2_sync->fence, 0);
3243    return EGL_TRUE;
3244 }
3245
3246 static int
3247 dri2_interop_query_device_info(_EGLDisplay *disp, _EGLContext *ctx,
3248                                struct mesa_glinterop_device_info *out)
3249 {
3250    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3251    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3252
3253    if (!dri2_dpy->interop)
3254       return MESA_GLINTEROP_UNSUPPORTED;
3255
3256    return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
3257 }
3258
3259 static int
3260 dri2_interop_export_object(_EGLDisplay *disp, _EGLContext *ctx,
3261                            struct mesa_glinterop_export_in *in,
3262                            struct mesa_glinterop_export_out *out)
3263 {
3264    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3265    struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3266
3267    if (!dri2_dpy->interop)
3268       return MESA_GLINTEROP_UNSUPPORTED;
3269
3270    return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
3271 }
3272
3273 /**
3274  * This is the main entrypoint into the driver, called by libEGL.
3275  * Gets an _EGLDriver object and init its dispatch table.
3276  */
3277 void
3278 _eglInitDriver(_EGLDriver *dri2_drv)
3279 {
3280    dri2_drv->API.Initialize = dri2_initialize;
3281    dri2_drv->API.Terminate = dri2_terminate;
3282    dri2_drv->API.CreateContext = dri2_create_context;
3283    dri2_drv->API.DestroyContext = dri2_destroy_context;
3284    dri2_drv->API.MakeCurrent = dri2_make_current;
3285    dri2_drv->API.CreateWindowSurface = dri2_create_window_surface;
3286    dri2_drv->API.CreatePixmapSurface = dri2_create_pixmap_surface;
3287    dri2_drv->API.CreatePbufferSurface = dri2_create_pbuffer_surface;
3288    dri2_drv->API.DestroySurface = dri2_destroy_surface;
3289    dri2_drv->API.GetProcAddress = dri2_get_proc_address;
3290    dri2_drv->API.WaitClient = dri2_wait_client;
3291    dri2_drv->API.WaitNative = dri2_wait_native;
3292    dri2_drv->API.BindTexImage = dri2_bind_tex_image;
3293    dri2_drv->API.ReleaseTexImage = dri2_release_tex_image;
3294    dri2_drv->API.SwapInterval = dri2_swap_interval;
3295    dri2_drv->API.SwapBuffers = dri2_swap_buffers;
3296    dri2_drv->API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
3297    dri2_drv->API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
3298    dri2_drv->API.SetDamageRegion = dri2_set_damage_region;
3299    dri2_drv->API.PostSubBufferNV = dri2_post_sub_buffer;
3300    dri2_drv->API.CopyBuffers = dri2_copy_buffers,
3301    dri2_drv->API.QueryBufferAge = dri2_query_buffer_age;
3302    dri2_drv->API.CreateImageKHR = dri2_create_image;
3303    dri2_drv->API.DestroyImageKHR = dri2_destroy_image_khr;
3304    dri2_drv->API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
3305    dri2_drv->API.QuerySurface = dri2_query_surface;
3306    dri2_drv->API.QueryDriverName = dri2_query_driver_name;
3307    dri2_drv->API.QueryDriverConfig = dri2_query_driver_config;
3308 #ifdef HAVE_LIBDRM
3309    dri2_drv->API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
3310    dri2_drv->API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
3311    dri2_drv->API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
3312    dri2_drv->API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
3313    dri2_drv->API.QueryDmaBufFormatsEXT = dri2_query_dma_buf_formats;
3314    dri2_drv->API.QueryDmaBufModifiersEXT = dri2_query_dma_buf_modifiers;
3315 #endif
3316 #ifdef HAVE_WAYLAND_PLATFORM
3317    dri2_drv->API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
3318    dri2_drv->API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
3319    dri2_drv->API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
3320 #endif
3321    dri2_drv->API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
3322    dri2_drv->API.CreateSyncKHR = dri2_create_sync;
3323    dri2_drv->API.ClientWaitSyncKHR = dri2_client_wait_sync;
3324    dri2_drv->API.SignalSyncKHR = dri2_signal_sync;
3325    dri2_drv->API.WaitSyncKHR = dri2_server_wait_sync;
3326    dri2_drv->API.DestroySyncKHR = dri2_destroy_sync;
3327    dri2_drv->API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
3328    dri2_drv->API.GLInteropExportObject = dri2_interop_export_object;
3329    dri2_drv->API.DupNativeFenceFDANDROID = dri2_dup_native_fence_fd;
3330    dri2_drv->API.SetBlobCacheFuncsANDROID = dri2_set_blob_cache_funcs;
3331 }