src/egl/main/eglapi.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 VMware, Inc.
   4  * Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
   5  * Copyright 2010-2011 LunarG, Inc.
   6  * All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the
  10  * "Software"), to deal in the Software without restriction, including
  11  * without limitation the rights to use, copy, modify, merge, publish,
  12  * distribute, sub license, and/or sell copies of the Software, and to
  13  * permit persons to whom the Software is furnished to do so, subject to
  14  * the following conditions:
  15  *
  16  * The above copyright notice and this permission notice (including the
  17  * next paragraph) shall be included in all copies or substantial portions
  18  * of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  23  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  24  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  25  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  26  * DEALINGS IN THE SOFTWARE.
  27  *
  28  **************************************************************************/
  29
  30
  31 /**
  32  * Public EGL API entrypoints
  33  *
  34  * Generally, we use the EGLDisplay parameter as a key to lookup the
  35  * appropriate device driver handle, then jump though the driver's
  36  * dispatch table to handle the function.
  37  *
  38  * That allows us the option of supporting multiple, simultaneous,
  39  * heterogeneous hardware devices in the future.
  40  *
  41  * The EGLDisplay, EGLConfig, EGLContext and EGLSurface types are
  42  * opaque handles. Internal objects are linked to a display to
  43  * create the handles.
  44  *
  45  * For each public API entry point, the opaque handles are looked up
  46  * before being dispatched to the drivers.  When it fails to look up
  47  * a handle, one of
  48  *
  49  * EGL_BAD_DISPLAY
  50  * EGL_BAD_CONFIG
  51  * EGL_BAD_CONTEXT
  52  * EGL_BAD_SURFACE
  53  * EGL_BAD_SCREEN_MESA
  54  * EGL_BAD_MODE_MESA
  55  *
  56  * is generated and the driver function is not called. An
  57  * uninitialized EGLDisplay has no driver associated with it. When
  58  * such display is detected,
  59  *
  60  * EGL_NOT_INITIALIZED
  61  *
  62  * is generated.
  63  *
  64  * Some of the entry points use current display, context, or surface
  65  * implicitly.  For such entry points, the implicit objects are also
  66  * checked before calling the driver function.  Other than the
  67  * errors listed above,
  68  *
  69  * EGL_BAD_CURRENT_SURFACE
  70  *
  71  * may also be generated.
  72  *
  73  * Notes on naming conventions:
  74  *
  75  * eglFooBar    - public EGL function
  76  * EGL_FOO_BAR  - public EGL token
  77  * EGLDatatype  - public EGL datatype
  78  *
  79  * _eglFooBar   - private EGL function
  80  * _EGLDatatype - private EGL datatype, typedef'd struct
  81  * _egl_struct  - private EGL struct, non-typedef'd
  82  *
  83  */
  84
  85
  86 #include <stdio.h>
  87 #include <stdlib.h>
  88 #include <string.h>
  89 #include "c99_compat.h"
  90 #include "c11/threads.h"
  91 #include "eglcompiler.h"
  92
  93 #include "eglglobals.h"
  94 #include "eglcontext.h"
  95 #include "egldisplay.h"
  96 #include "egltypedefs.h"
  97 #include "eglcurrent.h"
  98 #include "egldriver.h"
  99 #include "eglsurface.h"
 100 #include "eglconfig.h"
 101 #include "eglimage.h"
 102 #include "eglsync.h"
 103 #include "eglstring.h"
 104
 105
 106 /**
 107  * Macros to help return an API entrypoint.
 108  *
 109  * These macros will unlock the display and record the error code.
 110  */
 111 #define RETURN_EGL_ERROR(disp, err, ret)        \
 112    do {                                         \
 113       if (disp)                                 \
 114          _eglUnlockDisplay(disp);               \
 115       /* EGL error codes are non-zero */        \
 116       if (err)                                  \
 117          _eglError(err, __func__);              \
 118       return ret;                               \
 119    } while (0)
 120
 121 #define RETURN_EGL_SUCCESS(disp, ret) \
 122    RETURN_EGL_ERROR(disp, EGL_SUCCESS, ret)
 123
 124 /* record EGL_SUCCESS only when ret evaluates to true */
 125 #define RETURN_EGL_EVAL(disp, ret) \
 126    RETURN_EGL_ERROR(disp, (ret) ? EGL_SUCCESS : 0, ret)
 127
 128
 129 /*
 130  * A bunch of macros and checks to simplify error checking.
 131  */
 132
 133 #define _EGL_CHECK_DISPLAY(disp, ret, drv)         \
 134    do {                                            \
 135       drv = _eglCheckDisplay(disp, __func__);      \
 136       if (!drv)                                    \
 137          RETURN_EGL_ERROR(disp, 0, ret);           \
 138    } while (0)
 139
 140 #define _EGL_CHECK_OBJECT(disp, type, obj, ret, drv)      \
 141    do {                                                   \
 142       drv = _eglCheck ## type(disp, obj, __func__);       \
 143       if (!drv)                                           \
 144          RETURN_EGL_ERROR(disp, 0, ret);                  \
 145    } while (0)
 146
 147 #define _EGL_CHECK_SURFACE(disp, surf, ret, drv) \
 148    _EGL_CHECK_OBJECT(disp, Surface, surf, ret, drv)
 149
 150 #define _EGL_CHECK_CONTEXT(disp, context, ret, drv) \
 151    _EGL_CHECK_OBJECT(disp, Context, context, ret, drv)
 152
 153 #define _EGL_CHECK_CONFIG(disp, conf, ret, drv) \
 154    _EGL_CHECK_OBJECT(disp, Config, conf, ret, drv)
 155
 156 #define _EGL_CHECK_SYNC(disp, s, ret, drv) \
 157    _EGL_CHECK_OBJECT(disp, Sync, s, ret, drv)
 158
 159
 160 static inline _EGLDriver *
 161 _eglCheckDisplay(_EGLDisplay *disp, const char *msg)
 162 {
 163    if (!disp) {
 164       _eglError(EGL_BAD_DISPLAY, msg);
 165       return NULL;
 166    }
 167    if (!disp->Initialized) {
 168       _eglError(EGL_NOT_INITIALIZED, msg);
 169       return NULL;
 170    }
 171    return disp->Driver;
 172 }
 173
 174
 175 static inline _EGLDriver *
 176 _eglCheckSurface(_EGLDisplay *disp, _EGLSurface *surf, const char *msg)
 177 {
 178    _EGLDriver *drv = _eglCheckDisplay(disp, msg);
 179    if (!drv)
 180       return NULL;
 181    if (!surf) {
 182       _eglError(EGL_BAD_SURFACE, msg);
 183       return NULL;
 184    }
 185    return drv;
 186 }
 187
 188
 189 static inline _EGLDriver *
 190 _eglCheckContext(_EGLDisplay *disp, _EGLContext *context, const char *msg)
 191 {
 192    _EGLDriver *drv = _eglCheckDisplay(disp, msg);
 193    if (!drv)
 194       return NULL;
 195    if (!context) {
 196       _eglError(EGL_BAD_CONTEXT, msg);
 197       return NULL;
 198    }
 199    return drv;
 200 }
 201
 202
 203 static inline _EGLDriver *
 204 _eglCheckConfig(_EGLDisplay *disp, _EGLConfig *conf, const char *msg)
 205 {
 206    _EGLDriver *drv = _eglCheckDisplay(disp, msg);
 207    if (!drv)
 208       return NULL;
 209    if (!conf) {
 210       _eglError(EGL_BAD_CONFIG, msg);
 211       return NULL;
 212    }
 213    return drv;
 214 }
 215
 216
 217 static inline _EGLDriver *
 218 _eglCheckSync(_EGLDisplay *disp, _EGLSync *s, const char *msg)
 219 {
 220    _EGLDriver *drv = _eglCheckDisplay(disp, msg);
 221    if (!drv)
 222       return NULL;
 223    if (!s) {
 224       _eglError(EGL_BAD_PARAMETER, msg);
 225       return NULL;
 226    }
 227    return drv;
 228 }
 229
 230
 231 /**
 232  * Lookup and lock a display.
 233  */
 234 static inline _EGLDisplay *
 235 _eglLockDisplay(EGLDisplay display)
 236 {
 237    _EGLDisplay *dpy = _eglLookupDisplay(display);
 238    if (dpy)
 239       mtx_lock(&dpy->Mutex);
 240    return dpy;
 241 }
 242
 243
 244 /**
 245  * Unlock a display.
 246  */
 247 static inline void
 248 _eglUnlockDisplay(_EGLDisplay *dpy)
 249 {
 250    mtx_unlock(&dpy->Mutex);
 251 }
 252
 253
 254 /**
 255  * This is typically the first EGL function that an application calls.
 256  * It associates a private _EGLDisplay object to the native display.
 257  */
 258 EGLDisplay EGLAPIENTRY
 259 eglGetDisplay(EGLNativeDisplayType nativeDisplay)
 260 {
 261    _EGLPlatformType plat;
 262    _EGLDisplay *dpy;
 263    void *native_display_ptr;
 264
 265    STATIC_ASSERT(sizeof(void*) == sizeof(nativeDisplay));
 266    native_display_ptr = (void*) nativeDisplay;
 267
 268    plat = _eglGetNativePlatform(native_display_ptr);
 269    dpy = _eglFindDisplay(plat, native_display_ptr);
 270    return _eglGetDisplayHandle(dpy);
 271 }
 272
 273 static EGLDisplay EGLAPIENTRY
 274 eglGetPlatformDisplayEXT(EGLenum platform, void *native_display,
 275                          const EGLint *attrib_list)
 276 {
 277    _EGLDisplay *dpy;
 278
 279    switch (platform) {
 280 #ifdef HAVE_X11_PLATFORM
 281    case EGL_PLATFORM_X11_EXT:
 282       dpy = _eglGetX11Display((Display*) native_display, attrib_list);
 283       break;
 284 #endif
 285 #ifdef HAVE_DRM_PLATFORM
 286    case EGL_PLATFORM_GBM_MESA:
 287       dpy = _eglGetGbmDisplay((struct gbm_device*) native_display,
 288                               attrib_list);
 289       break;
 290 #endif
 291 #ifdef HAVE_WAYLAND_PLATFORM
 292    case EGL_PLATFORM_WAYLAND_EXT:
 293       dpy = _eglGetWaylandDisplay((struct wl_display*) native_display,
 294                                   attrib_list);
 295       break;
 296 #endif
 297    default:
 298       RETURN_EGL_ERROR(NULL, EGL_BAD_PARAMETER, NULL);
 299    }
 300
 301    return _eglGetDisplayHandle(dpy);
 302 }
 303
 304 /**
 305  * Copy the extension into the string and update the string pointer.
 306  */
 307 static EGLint
 308 _eglAppendExtension(char **str, const char *ext)
 309 {
 310    char *s = *str;
 311    size_t len = strlen(ext);
 312
 313    if (s) {
 314       memcpy(s, ext, len);
 315       s[len++] = ' ';
 316       s[len] = '\0';
 317
 318       *str += len;
 319    }
 320    else {
 321       len++;
 322    }
 323
 324    return (EGLint) len;
 325 }
 326
 327 /**
 328  * Examine the individual extension enable/disable flags and recompute
 329  * the driver's Extensions string.
 330  */
 331 static void
 332 _eglCreateExtensionsString(_EGLDisplay *dpy)
 333 {
 334 #define _EGL_CHECK_EXTENSION(ext)                                          \
 335    do {                                                                    \
 336       if (dpy->Extensions.ext) {                                           \
 337          _eglAppendExtension(&exts, "EGL_" #ext);                          \
 338          assert(exts <= dpy->ExtensionsString + _EGL_MAX_EXTENSIONS_LEN);  \
 339       }                                                                    \
 340    } while (0)
 341
 342    char *exts = dpy->ExtensionsString;
 343
 344    _EGL_CHECK_EXTENSION(MESA_drm_display);
 345    _EGL_CHECK_EXTENSION(MESA_drm_image);
 346    _EGL_CHECK_EXTENSION(MESA_configless_context);
 347
 348    _EGL_CHECK_EXTENSION(WL_bind_wayland_display);
 349    _EGL_CHECK_EXTENSION(WL_create_wayland_buffer_from_image);
 350
 351    _EGL_CHECK_EXTENSION(KHR_image_base);
 352    _EGL_CHECK_EXTENSION(KHR_image_pixmap);
 353    if (dpy->Extensions.KHR_image_base && dpy->Extensions.KHR_image_pixmap)
 354       _eglAppendExtension(&exts, "EGL_KHR_image");
 355
 356    _EGL_CHECK_EXTENSION(KHR_vg_parent_image);
 357    _EGL_CHECK_EXTENSION(KHR_get_all_proc_addresses);
 358    _EGL_CHECK_EXTENSION(KHR_gl_texture_2D_image);
 359    _EGL_CHECK_EXTENSION(KHR_gl_texture_cubemap_image);
 360    _EGL_CHECK_EXTENSION(KHR_gl_texture_3D_image);
 361    _EGL_CHECK_EXTENSION(KHR_gl_renderbuffer_image);
 362
 363    _EGL_CHECK_EXTENSION(KHR_reusable_sync);
 364    _EGL_CHECK_EXTENSION(KHR_fence_sync);
 365    _EGL_CHECK_EXTENSION(KHR_wait_sync);
 366    _EGL_CHECK_EXTENSION(KHR_cl_event2);
 367
 368    _EGL_CHECK_EXTENSION(KHR_surfaceless_context);
 369    _EGL_CHECK_EXTENSION(KHR_create_context);
 370
 371    _EGL_CHECK_EXTENSION(NOK_swap_region);
 372    _EGL_CHECK_EXTENSION(NOK_texture_from_pixmap);
 373
 374    _EGL_CHECK_EXTENSION(ANDROID_image_native_buffer);
 375
 376    _EGL_CHECK_EXTENSION(CHROMIUM_sync_control);
 377
 378    _EGL_CHECK_EXTENSION(EXT_create_context_robustness);
 379    _EGL_CHECK_EXTENSION(EXT_buffer_age);
 380    _EGL_CHECK_EXTENSION(EXT_swap_buffers_with_damage);
 381    _EGL_CHECK_EXTENSION(EXT_image_dma_buf_import);
 382
 383    _EGL_CHECK_EXTENSION(NV_post_sub_buffer);
 384
 385    _EGL_CHECK_EXTENSION(MESA_image_dma_buf_export);
 386 #undef _EGL_CHECK_EXTENSION
 387 }
 388
 389 static void
 390 _eglCreateAPIsString(_EGLDisplay *dpy)
 391 {
 392    if (dpy->ClientAPIs & EGL_OPENGL_BIT)
 393       strcat(dpy->ClientAPIsString, "OpenGL ");
 394
 395    if (dpy->ClientAPIs & EGL_OPENGL_ES_BIT)
 396       strcat(dpy->ClientAPIsString, "OpenGL_ES ");
 397
 398    if (dpy->ClientAPIs & EGL_OPENGL_ES2_BIT)
 399       strcat(dpy->ClientAPIsString, "OpenGL_ES2 ");
 400
 401    if (dpy->ClientAPIs & EGL_OPENGL_ES3_BIT_KHR)
 402       strcat(dpy->ClientAPIsString, "OpenGL_ES3 ");
 403
 404    if (dpy->ClientAPIs & EGL_OPENVG_BIT)
 405       strcat(dpy->ClientAPIsString, "OpenVG ");
 406
 407    assert(strlen(dpy->ClientAPIsString) < sizeof(dpy->ClientAPIsString));
 408 }
 409
 410 static void
 411 _eglComputeVersion(_EGLDisplay *disp)
 412 {
 413    disp->VersionMajor = 1;
 414    disp->VersionMinor = 4;
 415 }
 416
 417 /**
 418  * This is typically the second EGL function that an application calls.
 419  * Here we load/initialize the actual hardware driver.
 420  */
 421 EGLBoolean EGLAPIENTRY
 422 eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
 423 {
 424    _EGLDisplay *disp = _eglLockDisplay(dpy);
 425
 426    if (!disp)
 427       RETURN_EGL_ERROR(NULL, EGL_BAD_DISPLAY, EGL_FALSE);
 428
 429    if (!disp->Initialized) {
 430       if (!_eglMatchDriver(disp, EGL_FALSE))
 431          RETURN_EGL_ERROR(disp, EGL_NOT_INITIALIZED, EGL_FALSE);
 432
 433       /* limit to APIs supported by core */
 434       disp->ClientAPIs &= _EGL_API_ALL_BITS;
 435
 436       /* EGL_KHR_get_all_proc_addresses is a corner-case extension. The spec
 437        * classifies it as an EGL display extension, though conceptually it's an
 438        * EGL client extension.
 439        *
 440        * From the EGL_KHR_get_all_proc_addresses spec:
 441        *
 442        *    The EGL implementation must expose the name
 443        *    EGL_KHR_client_get_all_proc_addresses if and only if it exposes
 444        *    EGL_KHR_get_all_proc_addresses and supports
 445        *    EGL_EXT_client_extensions.
 446        *
 447        * Mesa unconditionally exposes both client extensions mentioned above,
 448        * so the spec requires that each EGLDisplay unconditionally expose
 449        * EGL_KHR_get_all_proc_addresses also.
 450        */
 451       disp->Extensions.KHR_get_all_proc_addresses = EGL_TRUE;
 452
 453       _eglComputeVersion(disp);
 454       _eglCreateExtensionsString(disp);
 455       _eglCreateAPIsString(disp);
 456       _eglsnprintf(disp->VersionString, sizeof(disp->VersionString),
 457               "%d.%d (%s)", disp->VersionMajor, disp->VersionMinor,
 458               disp->Driver->Name);
 459    }
 460
 461    /* Update applications version of major and minor if not NULL */
 462    if ((major != NULL) && (minor != NULL)) {
 463       *major = disp->VersionMajor;
 464       *minor = disp->VersionMinor;
 465    }
 466
 467    RETURN_EGL_SUCCESS(disp, EGL_TRUE);
 468 }
 469
 470
 471 EGLBoolean EGLAPIENTRY
 472 eglTerminate(EGLDisplay dpy)
 473 {
 474    _EGLDisplay *disp = _eglLockDisplay(dpy);
 475
 476    if (!disp)
 477       RETURN_EGL_ERROR(NULL, EGL_BAD_DISPLAY, EGL_FALSE);
 478
 479    if (disp->Initialized) {
 480       _EGLDriver *drv = disp->Driver;
 481
 482       drv->API.Terminate(drv, disp);
 483       /* do not reset disp->Driver */
 484       disp->ClientAPIsString[0] = 0;
 485       disp->Initialized = EGL_FALSE;
 486    }
 487
 488    RETURN_EGL_SUCCESS(disp, EGL_TRUE);
 489 }
 490
 491
 492 const char * EGLAPIENTRY
 493 eglQueryString(EGLDisplay dpy, EGLint name)
 494 {
 495    _EGLDisplay *disp;
 496    _EGLDriver *drv;
 497
 498    if (dpy == EGL_NO_DISPLAY && name == EGL_EXTENSIONS) {
 499       RETURN_EGL_SUCCESS(NULL, _eglGlobal.ClientExtensionString);
 500    }
 501
 502    disp = _eglLockDisplay(dpy);
 503    _EGL_CHECK_DISPLAY(disp, NULL, drv);
 504
 505    switch (name) {
 506    case EGL_VENDOR:
 507       RETURN_EGL_SUCCESS(disp, _EGL_VENDOR_STRING);
 508    case EGL_VERSION:
 509       RETURN_EGL_SUCCESS(disp, disp->VersionString);
 510    case EGL_EXTENSIONS:
 511       RETURN_EGL_SUCCESS(disp, disp->ExtensionsString);
 512    case EGL_CLIENT_APIS:
 513       RETURN_EGL_SUCCESS(disp, disp->ClientAPIsString);
 514    default:
 515       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, NULL);
 516    }
 517 }
 518
 519
 520 EGLBoolean EGLAPIENTRY
 521 eglGetConfigs(EGLDisplay dpy, EGLConfig *configs,
 522               EGLint config_size, EGLint *num_config)
 523 {
 524    _EGLDisplay *disp = _eglLockDisplay(dpy);
 525    _EGLDriver *drv;
 526    EGLBoolean ret;
 527
 528    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
 529    ret = drv->API.GetConfigs(drv, disp, configs, config_size, num_config);
 530
 531    RETURN_EGL_EVAL(disp, ret);
 532 }
 533
 534
 535 EGLBoolean EGLAPIENTRY
 536 eglChooseConfig(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs,
 537                 EGLint config_size, EGLint *num_config)
 538 {
 539    _EGLDisplay *disp = _eglLockDisplay(dpy);
 540    _EGLDriver *drv;
 541    EGLBoolean ret;
 542
 543    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
 544    ret = drv->API.ChooseConfig(drv, disp, attrib_list, configs,
 545                                 config_size, num_config);
 546
 547    RETURN_EGL_EVAL(disp, ret);
 548 }
 549
 550
 551 EGLBoolean EGLAPIENTRY
 552 eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,
 553                    EGLint attribute, EGLint *value)
 554 {
 555    _EGLDisplay *disp = _eglLockDisplay(dpy);
 556    _EGLConfig *conf = _eglLookupConfig(config, disp);
 557    _EGLDriver *drv;
 558    EGLBoolean ret;
 559
 560    _EGL_CHECK_CONFIG(disp, conf, EGL_FALSE, drv);
 561    ret = drv->API.GetConfigAttrib(drv, disp, conf, attribute, value);
 562
 563    RETURN_EGL_EVAL(disp, ret);
 564 }
 565
 566
 567 EGLContext EGLAPIENTRY
 568 eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_list,
 569                  const EGLint *attrib_list)
 570 {
 571    _EGLDisplay *disp = _eglLockDisplay(dpy);
 572    _EGLConfig *conf = _eglLookupConfig(config, disp);
 573    _EGLContext *share = _eglLookupContext(share_list, disp);
 574    _EGLDriver *drv;
 575    _EGLContext *context;
 576    EGLContext ret;
 577
 578    _EGL_CHECK_DISPLAY(disp, EGL_NO_CONTEXT, drv);
 579
 580    if (!config && !disp->Extensions.MESA_configless_context)
 581       RETURN_EGL_ERROR(disp, EGL_BAD_CONFIG, EGL_NO_CONTEXT);
 582
 583    if (!share && share_list != EGL_NO_CONTEXT)
 584       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_NO_CONTEXT);
 585
 586    context = drv->API.CreateContext(drv, disp, conf, share, attrib_list);
 587    ret = (context) ? _eglLinkContext(context) : EGL_NO_CONTEXT;
 588
 589    RETURN_EGL_EVAL(disp, ret);
 590 }
 591
 592
 593 EGLBoolean EGLAPIENTRY
 594 eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
 595 {
 596    _EGLDisplay *disp = _eglLockDisplay(dpy);
 597    _EGLContext *context = _eglLookupContext(ctx, disp);
 598    _EGLDriver *drv;
 599    EGLBoolean ret;
 600
 601    _EGL_CHECK_CONTEXT(disp, context, EGL_FALSE, drv);
 602    _eglUnlinkContext(context);
 603    ret = drv->API.DestroyContext(drv, disp, context);
 604
 605    RETURN_EGL_EVAL(disp, ret);
 606 }
 607
 608
 609 EGLBoolean EGLAPIENTRY
 610 eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read,
 611                EGLContext ctx)
 612 {
 613    _EGLDisplay *disp = _eglLockDisplay(dpy);
 614    _EGLContext *context = _eglLookupContext(ctx, disp);
 615    _EGLSurface *draw_surf = _eglLookupSurface(draw, disp);
 616    _EGLSurface *read_surf = _eglLookupSurface(read, disp);
 617    _EGLDriver *drv;
 618    EGLBoolean ret;
 619
 620    if (!disp)
 621       RETURN_EGL_ERROR(disp, EGL_BAD_DISPLAY, EGL_FALSE);
 622    drv = disp->Driver;
 623
 624    /* display is allowed to be uninitialized under certain condition */
 625    if (!disp->Initialized) {
 626       if (draw != EGL_NO_SURFACE || read != EGL_NO_SURFACE ||
 627           ctx != EGL_NO_CONTEXT)
 628          RETURN_EGL_ERROR(disp, EGL_BAD_DISPLAY, EGL_FALSE);
 629    }
 630    if (!drv)
 631       RETURN_EGL_SUCCESS(disp, EGL_TRUE);
 632
 633    if (!context && ctx != EGL_NO_CONTEXT)
 634       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_FALSE);
 635    if (!draw_surf || !read_surf) {
 636       /* From the EGL 1.4 (20130211) spec:
 637        *
 638        *    To release the current context without assigning a new one, set ctx
 639        *    to EGL_NO_CONTEXT and set draw and read to EGL_NO_SURFACE.
 640        */
 641       if (!disp->Extensions.KHR_surfaceless_context && ctx != EGL_NO_CONTEXT)
 642          RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
 643
 644       if ((!draw_surf && draw != EGL_NO_SURFACE) ||
 645           (!read_surf && read != EGL_NO_SURFACE))
 646          RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
 647       if (draw_surf || read_surf)
 648          RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_FALSE);
 649    }
 650
 651    ret = drv->API.MakeCurrent(drv, disp, draw_surf, read_surf, context);
 652
 653    RETURN_EGL_EVAL(disp, ret);
 654 }
 655
 656
 657 EGLBoolean EGLAPIENTRY
 658 eglQueryContext(EGLDisplay dpy, EGLContext ctx,
 659                 EGLint attribute, EGLint *value)
 660 {
 661    _EGLDisplay *disp = _eglLockDisplay(dpy);
 662    _EGLContext *context = _eglLookupContext(ctx, disp);
 663    _EGLDriver *drv;
 664    EGLBoolean ret;
 665
 666    _EGL_CHECK_CONTEXT(disp, context, EGL_FALSE, drv);
 667    ret = drv->API.QueryContext(drv, disp, context, attribute, value);
 668
 669    RETURN_EGL_EVAL(disp, ret);
 670 }
 671
 672
 673 static EGLSurface
 674 _eglCreateWindowSurfaceCommon(_EGLDisplay *disp, EGLConfig config,
 675                               void *native_window, const EGLint *attrib_list)
 676 {
 677    _EGLConfig *conf = _eglLookupConfig(config, disp);
 678    _EGLDriver *drv;
 679    _EGLSurface *surf;
 680    EGLSurface ret;
 681
 682    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
 683
 684    if (native_window == NULL)
 685       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
 686
 687    surf = drv->API.CreateWindowSurface(drv, disp, conf, native_window,
 688                                        attrib_list);
 689    ret = (surf) ? _eglLinkSurface(surf) : EGL_NO_SURFACE;
 690
 691    RETURN_EGL_EVAL(disp, ret);
 692 }
 693
 694
 695 EGLSurface EGLAPIENTRY
 696 eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config,
 697                        EGLNativeWindowType window, const EGLint *attrib_list)
 698 {
 699    _EGLDisplay *disp = _eglLockDisplay(dpy);
 700    STATIC_ASSERT(sizeof(void*) == sizeof(window));
 701    return _eglCreateWindowSurfaceCommon(disp, config, (void*) window,
 702                                         attrib_list);
 703 }
 704
 705
 706 static EGLSurface EGLAPIENTRY
 707 eglCreatePlatformWindowSurfaceEXT(EGLDisplay dpy, EGLConfig config,
 708                                   void *native_window,
 709                                   const EGLint *attrib_list)
 710 {
 711    _EGLDisplay *disp = _eglLockDisplay(dpy);
 712
 713 #ifdef HAVE_X11_PLATFORM
 714    if (disp->Platform == _EGL_PLATFORM_X11 && native_window != NULL) {
 715       /* The `native_window` parameter for the X11 platform differs between
 716        * eglCreateWindowSurface() and eglCreatePlatformPixmapSurfaceEXT(). In
 717        * eglCreateWindowSurface(), the type of `native_window` is an Xlib
 718        * `Window`. In eglCreatePlatformWindowSurfaceEXT(), the type is
 719        * `Window*`.  Convert `Window*` to `Window` because that's what
 720        * dri2_x11_create_window_surface() expects.
 721        */
 722       native_window = (void*) (* (Window*) native_window);
 723    }
 724 #endif
 725
 726    return _eglCreateWindowSurfaceCommon(disp, config, native_window,
 727                                         attrib_list);
 728 }
 729
 730
 731 static EGLSurface
 732 _eglCreatePixmapSurfaceCommon(_EGLDisplay *disp, EGLConfig config,
 733                               void *native_pixmap, const EGLint *attrib_list)
 734 {
 735    _EGLConfig *conf = _eglLookupConfig(config, disp);
 736    _EGLDriver *drv;
 737    _EGLSurface *surf;
 738    EGLSurface ret;
 739
 740    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
 741    surf = drv->API.CreatePixmapSurface(drv, disp, conf, native_pixmap,
 742                                        attrib_list);
 743    ret = (surf) ? _eglLinkSurface(surf) : EGL_NO_SURFACE;
 744
 745    RETURN_EGL_EVAL(disp, ret);
 746 }
 747
 748
 749 EGLSurface EGLAPIENTRY
 750 eglCreatePixmapSurface(EGLDisplay dpy, EGLConfig config,
 751                        EGLNativePixmapType pixmap, const EGLint *attrib_list)
 752 {
 753    _EGLDisplay *disp = _eglLockDisplay(dpy);
 754    STATIC_ASSERT(sizeof(void*) == sizeof(pixmap));
 755    return _eglCreatePixmapSurfaceCommon(disp, config, (void*) pixmap,
 756                                          attrib_list);
 757 }
 758
 759 static EGLSurface EGLAPIENTRY
 760 eglCreatePlatformPixmapSurfaceEXT(EGLDisplay dpy, EGLConfig config,
 761                                    void *native_pixmap,
 762                                    const EGLint *attrib_list)
 763 {
 764    _EGLDisplay *disp = _eglLockDisplay(dpy);
 765
 766 #ifdef HAVE_X11_PLATFORM
 767       /* The `native_pixmap` parameter for the X11 platform differs between
 768        * eglCreatePixmapSurface() and eglCreatePlatformPixmapSurfaceEXT(). In
 769        * eglCreatePixmapSurface(), the type of `native_pixmap` is an Xlib
 770        * `Pixmap`. In eglCreatePlatformPixmapSurfaceEXT(), the type is
 771        * `Pixmap*`.  Convert `Pixmap*` to `Pixmap` because that's what
 772        * dri2_x11_create_pixmap_surface() expects.
 773        */
 774    if (disp->Platform == _EGL_PLATFORM_X11 && native_pixmap != NULL) {
 775       native_pixmap = (void*) (* (Pixmap*) native_pixmap);
 776    }
 777 #endif
 778
 779    return _eglCreatePixmapSurfaceCommon(disp, config, native_pixmap,
 780                                         attrib_list);
 781 }
 782
 783
 784 EGLSurface EGLAPIENTRY
 785 eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config,
 786                         const EGLint *attrib_list)
 787 {
 788    _EGLDisplay *disp = _eglLockDisplay(dpy);
 789    _EGLConfig *conf = _eglLookupConfig(config, disp);
 790    _EGLDriver *drv;
 791    _EGLSurface *surf;
 792    EGLSurface ret;
 793
 794    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
 795
 796    surf = drv->API.CreatePbufferSurface(drv, disp, conf, attrib_list);
 797    ret = (surf) ? _eglLinkSurface(surf) : EGL_NO_SURFACE;
 798
 799    RETURN_EGL_EVAL(disp, ret);
 800 }
 801
 802
 803 EGLBoolean EGLAPIENTRY
 804 eglDestroySurface(EGLDisplay dpy, EGLSurface surface)
 805 {
 806    _EGLDisplay *disp = _eglLockDisplay(dpy);
 807    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 808    _EGLDriver *drv;
 809    EGLBoolean ret;
 810
 811    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 812    _eglUnlinkSurface(surf);
 813    ret = drv->API.DestroySurface(drv, disp, surf);
 814
 815    RETURN_EGL_EVAL(disp, ret);
 816 }
 817
 818 EGLBoolean EGLAPIENTRY
 819 eglQuerySurface(EGLDisplay dpy, EGLSurface surface,
 820                 EGLint attribute, EGLint *value)
 821 {
 822    _EGLDisplay *disp = _eglLockDisplay(dpy);
 823    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 824    _EGLDriver *drv;
 825    EGLBoolean ret;
 826
 827    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 828    ret = drv->API.QuerySurface(drv, disp, surf, attribute, value);
 829
 830    RETURN_EGL_EVAL(disp, ret);
 831 }
 832
 833 EGLBoolean EGLAPIENTRY
 834 eglSurfaceAttrib(EGLDisplay dpy, EGLSurface surface,
 835                  EGLint attribute, EGLint value)
 836 {
 837    _EGLDisplay *disp = _eglLockDisplay(dpy);
 838    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 839    _EGLDriver *drv;
 840    EGLBoolean ret;
 841
 842    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 843    ret = drv->API.SurfaceAttrib(drv, disp, surf, attribute, value);
 844
 845    RETURN_EGL_EVAL(disp, ret);
 846 }
 847
 848
 849 EGLBoolean EGLAPIENTRY
 850 eglBindTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer)
 851 {
 852    _EGLDisplay *disp = _eglLockDisplay(dpy);
 853    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 854    _EGLDriver *drv;
 855    EGLBoolean ret;
 856
 857    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 858    ret = drv->API.BindTexImage(drv, disp, surf, buffer);
 859
 860    RETURN_EGL_EVAL(disp, ret);
 861 }
 862
 863
 864 EGLBoolean EGLAPIENTRY
 865 eglReleaseTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer)
 866 {
 867    _EGLDisplay *disp = _eglLockDisplay(dpy);
 868    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 869    _EGLDriver *drv;
 870    EGLBoolean ret;
 871
 872    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 873    ret = drv->API.ReleaseTexImage(drv, disp, surf, buffer);
 874
 875    RETURN_EGL_EVAL(disp, ret);
 876 }
 877
 878
 879 EGLBoolean EGLAPIENTRY
 880 eglSwapInterval(EGLDisplay dpy, EGLint interval)
 881 {
 882    _EGLDisplay *disp = _eglLockDisplay(dpy);
 883    _EGLContext *ctx = _eglGetCurrentContext();
 884    _EGLSurface *surf;
 885    _EGLDriver *drv;
 886    EGLBoolean ret;
 887
 888    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
 889
 890    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
 891        ctx->Resource.Display != disp)
 892       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_FALSE);
 893
 894    surf = ctx->DrawSurface;
 895    if (_eglGetSurfaceHandle(surf) == EGL_NO_SURFACE)
 896       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
 897
 898    ret = drv->API.SwapInterval(drv, disp, surf, interval);
 899
 900    RETURN_EGL_EVAL(disp, ret);
 901 }
 902
 903
 904 EGLBoolean EGLAPIENTRY
 905 eglSwapBuffers(EGLDisplay dpy, EGLSurface surface)
 906 {
 907    _EGLContext *ctx = _eglGetCurrentContext();
 908    _EGLDisplay *disp = _eglLockDisplay(dpy);
 909    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 910    _EGLDriver *drv;
 911    EGLBoolean ret;
 912
 913    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 914
 915    /* surface must be bound to current context in EGL 1.4 */
 916    #ifndef _EGL_BUILT_IN_DRIVER_HAIKU
 917    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
 918        surf != ctx->DrawSurface)
 919       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
 920    #endif
 921
 922    ret = drv->API.SwapBuffers(drv, disp, surf);
 923
 924    RETURN_EGL_EVAL(disp, ret);
 925 }
 926
 927
 928 #ifdef EGL_EXT_swap_buffers_with_damage
 929
 930 static EGLBoolean EGLAPIENTRY
 931 eglSwapBuffersWithDamageEXT(EGLDisplay dpy, EGLSurface surface,
 932                             EGLint *rects, EGLint n_rects)
 933 {
 934    _EGLContext *ctx = _eglGetCurrentContext();
 935    _EGLDisplay *disp = _eglLockDisplay(dpy);
 936    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 937    _EGLDriver *drv;
 938    EGLBoolean ret;
 939
 940    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 941
 942    /* surface must be bound to current context in EGL 1.4 */
 943    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
 944        surf != ctx->DrawSurface)
 945       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
 946
 947    if ((n_rects > 0 && rects == NULL) || n_rects < 0)
 948       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
 949
 950    ret = drv->API.SwapBuffersWithDamageEXT(drv, disp, surf, rects, n_rects);
 951
 952    RETURN_EGL_EVAL(disp, ret);
 953 }
 954
 955 #endif /* EGL_EXT_swap_buffers_with_damage */
 956
 957 EGLBoolean EGLAPIENTRY
 958 eglCopyBuffers(EGLDisplay dpy, EGLSurface surface, EGLNativePixmapType target)
 959 {
 960    _EGLDisplay *disp = _eglLockDisplay(dpy);
 961    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 962    _EGLDriver *drv;
 963    EGLBoolean ret;
 964    void *native_pixmap_ptr;
 965
 966    STATIC_ASSERT(sizeof(void*) == sizeof(target));
 967    native_pixmap_ptr = (void*) target;
 968
 969    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 970    if (disp->Platform != _eglGetNativePlatform(disp->PlatformDisplay))
 971       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_PIXMAP, EGL_FALSE);
 972    ret = drv->API.CopyBuffers(drv, disp, surf, native_pixmap_ptr);
 973
 974    RETURN_EGL_EVAL(disp, ret);
 975 }
 976
 977
 978 EGLBoolean EGLAPIENTRY
 979 eglWaitClient(void)
 980 {
 981    _EGLContext *ctx = _eglGetCurrentContext();
 982    _EGLDisplay *disp;
 983    _EGLDriver *drv;
 984    EGLBoolean ret;
 985
 986    if (!ctx)
 987       RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
 988
 989    disp = ctx->Resource.Display;
 990    mtx_lock(&disp->Mutex);
 991
 992    /* let bad current context imply bad current surface */
 993    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
 994        _eglGetSurfaceHandle(ctx->DrawSurface) == EGL_NO_SURFACE)
 995       RETURN_EGL_ERROR(disp, EGL_BAD_CURRENT_SURFACE, EGL_FALSE);
 996
 997    /* a valid current context implies an initialized current display */
 998    assert(disp->Initialized);
 999    drv = disp->Driver;
1000    ret = drv->API.WaitClient(drv, disp, ctx);
1001
1002    RETURN_EGL_EVAL(disp, ret);
1003 }
1004
1005
1006 EGLBoolean EGLAPIENTRY
1007 eglWaitGL(void)
1008 {
1009    _EGLThreadInfo *t = _eglGetCurrentThread();
1010    EGLint api_index = t->CurrentAPIIndex;
1011    EGLint es_index = _eglConvertApiToIndex(EGL_OPENGL_ES_API);
1012    EGLBoolean ret;
1013
1014    if (api_index != es_index && _eglIsCurrentThreadDummy())
1015       RETURN_EGL_ERROR(NULL, EGL_BAD_ALLOC, EGL_FALSE);
1016
1017    t->CurrentAPIIndex = es_index;
1018    ret = eglWaitClient();
1019    t->CurrentAPIIndex = api_index;
1020    return ret;
1021 }
1022
1023
1024 EGLBoolean EGLAPIENTRY
1025 eglWaitNative(EGLint engine)
1026 {
1027    _EGLContext *ctx = _eglGetCurrentContext();
1028    _EGLDisplay *disp;
1029    _EGLDriver *drv;
1030    EGLBoolean ret;
1031
1032    if (!ctx)
1033       RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
1034
1035    disp = ctx->Resource.Display;
1036    mtx_lock(&disp->Mutex);
1037
1038    /* let bad current context imply bad current surface */
1039    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
1040        _eglGetSurfaceHandle(ctx->DrawSurface) == EGL_NO_SURFACE)
1041       RETURN_EGL_ERROR(disp, EGL_BAD_CURRENT_SURFACE, EGL_FALSE);
1042
1043    /* a valid current context implies an initialized current display */
1044    assert(disp->Initialized);
1045    drv = disp->Driver;
1046    ret = drv->API.WaitNative(drv, disp, engine);
1047
1048    RETURN_EGL_EVAL(disp, ret);
1049 }
1050
1051
1052 EGLDisplay EGLAPIENTRY
1053 eglGetCurrentDisplay(void)
1054 {
1055    _EGLContext *ctx = _eglGetCurrentContext();
1056    EGLDisplay ret;
1057
1058    ret = (ctx) ? _eglGetDisplayHandle(ctx->Resource.Display) : EGL_NO_DISPLAY;
1059
1060    RETURN_EGL_SUCCESS(NULL, ret);
1061 }
1062
1063
1064 EGLContext EGLAPIENTRY
1065 eglGetCurrentContext(void)
1066 {
1067    _EGLContext *ctx = _eglGetCurrentContext();
1068    EGLContext ret;
1069
1070    ret = _eglGetContextHandle(ctx);
1071
1072    RETURN_EGL_SUCCESS(NULL, ret);
1073 }
1074
1075
1076 EGLSurface EGLAPIENTRY
1077 eglGetCurrentSurface(EGLint readdraw)
1078 {
1079    _EGLContext *ctx = _eglGetCurrentContext();
1080    EGLint err = EGL_SUCCESS;
1081    _EGLSurface *surf;
1082    EGLSurface ret;
1083
1084    if (!ctx)
1085       RETURN_EGL_SUCCESS(NULL, EGL_NO_SURFACE);
1086
1087    switch (readdraw) {
1088    case EGL_DRAW:
1089       surf = ctx->DrawSurface;
1090       break;
1091    case EGL_READ:
1092       surf = ctx->ReadSurface;
1093       break;
1094    default:
1095       surf = NULL;
1096       err = EGL_BAD_PARAMETER;
1097       break;
1098    }
1099
1100    ret = _eglGetSurfaceHandle(surf);
1101
1102    RETURN_EGL_ERROR(NULL, err, ret);
1103 }
1104
1105
1106 EGLint EGLAPIENTRY
1107 eglGetError(void)
1108 {
1109    _EGLThreadInfo *t = _eglGetCurrentThread();
1110    EGLint e = t->LastError;
1111    if (!_eglIsCurrentThreadDummy())
1112       t->LastError = EGL_SUCCESS;
1113    return e;
1114 }
1115
1116
1117 #ifdef EGL_MESA_drm_display
1118
1119 static EGLDisplay EGLAPIENTRY
1120 eglGetDRMDisplayMESA(int fd)
1121 {
1122    _EGLDisplay *dpy = _eglFindDisplay(_EGL_PLATFORM_DRM, (void *) (intptr_t) fd);
1123    return _eglGetDisplayHandle(dpy);
1124 }
1125
1126 #endif /* EGL_MESA_drm_display */
1127
1128 /**
1129  ** EGL 1.2
1130  **/
1131
1132 /**
1133  * Specify the client API to use for subsequent calls including:
1134  *  eglCreateContext()
1135  *  eglGetCurrentContext()
1136  *  eglGetCurrentDisplay()
1137  *  eglGetCurrentSurface()
1138  *  eglMakeCurrent(when the ctx parameter is EGL NO CONTEXT)
1139  *  eglWaitClient()
1140  *  eglWaitNative()
1141  * See section 3.7 "Rendering Context" in the EGL specification for details.
1142  */
1143 EGLBoolean EGLAPIENTRY
1144 eglBindAPI(EGLenum api)
1145 {
1146    _EGLThreadInfo *t = _eglGetCurrentThread();
1147
1148    if (_eglIsCurrentThreadDummy())
1149       RETURN_EGL_ERROR(NULL, EGL_BAD_ALLOC, EGL_FALSE);
1150
1151    if (!_eglIsApiValid(api))
1152       RETURN_EGL_ERROR(NULL, EGL_BAD_PARAMETER, EGL_FALSE);
1153
1154    t->CurrentAPIIndex = _eglConvertApiToIndex(api);
1155
1156    RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
1157 }
1158
1159
1160 /**
1161  * Return the last value set with eglBindAPI().
1162  */
1163 EGLenum EGLAPIENTRY
1164 eglQueryAPI(void)
1165 {
1166    _EGLThreadInfo *t = _eglGetCurrentThread();
1167    EGLenum ret;
1168
1169    /* returns one of EGL_OPENGL_API, EGL_OPENGL_ES_API or EGL_OPENVG_API */
1170    ret = _eglConvertApiFromIndex(t->CurrentAPIIndex);
1171
1172    RETURN_EGL_SUCCESS(NULL, ret);
1173 }
1174
1175
1176 EGLSurface EGLAPIENTRY
1177 eglCreatePbufferFromClientBuffer(EGLDisplay dpy, EGLenum buftype,
1178                                  EGLClientBuffer buffer, EGLConfig config,
1179                                  const EGLint *attrib_list)
1180 {
1181    _EGLDisplay *disp = _eglLockDisplay(dpy);
1182    _EGLConfig *conf = _eglLookupConfig(config, disp);
1183    _EGLDriver *drv;
1184    _EGLSurface *surf;
1185    EGLSurface ret;
1186
1187    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
1188
1189    surf = drv->API.CreatePbufferFromClientBuffer(drv, disp, buftype, buffer,
1190                                                  conf, attrib_list);
1191    ret = (surf) ? _eglLinkSurface(surf) : EGL_NO_SURFACE;
1192
1193    RETURN_EGL_EVAL(disp, ret);
1194 }
1195
1196
1197 EGLBoolean EGLAPIENTRY
1198 eglReleaseThread(void)
1199 {
1200    /* unbind current contexts */
1201    if (!_eglIsCurrentThreadDummy()) {
1202       _EGLThreadInfo *t = _eglGetCurrentThread();
1203       EGLint api_index = t->CurrentAPIIndex;
1204       EGLint i;
1205
1206       for (i = 0; i < _EGL_API_NUM_APIS; i++) {
1207          _EGLContext *ctx = t->CurrentContexts[i];
1208          if (ctx) {
1209             _EGLDisplay *disp = ctx->Resource.Display;
1210             _EGLDriver *drv;
1211
1212             t->CurrentAPIIndex = i;
1213
1214             mtx_lock(&disp->Mutex);
1215             drv = disp->Driver;
1216             (void) drv->API.MakeCurrent(drv, disp, NULL, NULL, NULL);
1217             mtx_unlock(&disp->Mutex);
1218          }
1219       }
1220
1221       t->CurrentAPIIndex = api_index;
1222    }
1223
1224    _eglDestroyCurrentThread();
1225
1226    RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
1227 }
1228
1229
1230 static EGLImageKHR EGLAPIENTRY
1231 eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
1232                   EGLClientBuffer buffer, const EGLint *attr_list)
1233 {
1234    _EGLDisplay *disp = _eglLockDisplay(dpy);
1235    _EGLContext *context = _eglLookupContext(ctx, disp);
1236    _EGLDriver *drv;
1237    _EGLImage *img;
1238    EGLImageKHR ret;
1239
1240    _EGL_CHECK_DISPLAY(disp, EGL_NO_IMAGE_KHR, drv);
1241    if (!disp->Extensions.KHR_image_base)
1242       RETURN_EGL_EVAL(disp, EGL_NO_IMAGE_KHR);
1243    if (!context && ctx != EGL_NO_CONTEXT)
1244       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR);
1245    /* "If <target> is EGL_LINUX_DMA_BUF_EXT, <dpy> must be a valid display,
1246     *  <ctx> must be EGL_NO_CONTEXT..."
1247     */
1248    if (ctx != EGL_NO_CONTEXT && target == EGL_LINUX_DMA_BUF_EXT)
1249       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
1250
1251    img = drv->API.CreateImageKHR(drv,
1252          disp, context, target, buffer, attr_list);
1253    ret = (img) ? _eglLinkImage(img) : EGL_NO_IMAGE_KHR;
1254
1255    RETURN_EGL_EVAL(disp, ret);
1256 }
1257
1258
1259 static EGLBoolean EGLAPIENTRY
1260 eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR image)
1261 {
1262    _EGLDisplay *disp = _eglLockDisplay(dpy);
1263    _EGLImage *img = _eglLookupImage(image, disp);
1264    _EGLDriver *drv;
1265    EGLBoolean ret;
1266
1267    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
1268    if (!disp->Extensions.KHR_image_base)
1269       RETURN_EGL_EVAL(disp, EGL_FALSE);
1270    if (!img)
1271       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
1272
1273    _eglUnlinkImage(img);
1274    ret = drv->API.DestroyImageKHR(drv, disp, img);
1275
1276    RETURN_EGL_EVAL(disp, ret);
1277 }
1278
1279
1280 static EGLSyncKHR
1281 _eglCreateSync(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list,
1282                const EGLAttribKHR *attrib_list64, EGLBoolean is64)
1283 {
1284    _EGLDisplay *disp = _eglLockDisplay(dpy);
1285    _EGLContext *ctx = _eglGetCurrentContext();
1286    _EGLDriver *drv;
1287    _EGLSync *sync;
1288    EGLSyncKHR ret;
1289
1290    _EGL_CHECK_DISPLAY(disp, EGL_NO_SYNC_KHR, drv);
1291
1292    if (!disp->Extensions.KHR_cl_event2 && is64)
1293       RETURN_EGL_EVAL(disp, EGL_NO_SYNC_KHR);
1294
1295    /* return an error if the client API doesn't support GL_OES_EGL_sync */
1296    if (!ctx || ctx->Resource.Display != dpy ||
1297        ctx->ClientAPI != EGL_OPENGL_ES_API)
1298       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_NO_SYNC_KHR);
1299
1300    switch (type) {
1301    case EGL_SYNC_FENCE_KHR:
1302       if (!disp->Extensions.KHR_fence_sync)
1303          RETURN_EGL_ERROR(disp, EGL_BAD_ATTRIBUTE, EGL_NO_SYNC_KHR);
1304       break;
1305    case EGL_SYNC_REUSABLE_KHR:
1306       if (!disp->Extensions.KHR_reusable_sync)
1307          RETURN_EGL_ERROR(disp, EGL_BAD_ATTRIBUTE, EGL_NO_SYNC_KHR);
1308       break;
1309    case EGL_SYNC_CL_EVENT_KHR:
1310       if (!disp->Extensions.KHR_cl_event2)
1311          RETURN_EGL_ERROR(disp, EGL_BAD_ATTRIBUTE, EGL_NO_SYNC_KHR);
1312       break;
1313    default:
1314       RETURN_EGL_ERROR(disp, EGL_BAD_ATTRIBUTE, EGL_NO_SYNC_KHR);
1315    }
1316
1317    sync = drv->API.CreateSyncKHR(drv, disp, type, attrib_list, attrib_list64);
1318    ret = (sync) ? _eglLinkSync(sync) : EGL_NO_SYNC_KHR;
1319
1320    RETURN_EGL_EVAL(disp, ret);
1321 }
1322
1323
1324 static EGLSyncKHR EGLAPIENTRY
1325 eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list)
1326 {
1327    return _eglCreateSync(dpy, type, attrib_list, NULL, EGL_FALSE);
1328 }
1329
1330
1331 static EGLSyncKHR EGLAPIENTRY
1332 eglCreateSync64KHR(EGLDisplay dpy, EGLenum type, const EGLAttribKHR *attrib_list)
1333 {
1334    return _eglCreateSync(dpy, type, NULL, attrib_list, EGL_TRUE);
1335 }
1336
1337
1338 static EGLBoolean EGLAPIENTRY
1339 eglDestroySyncKHR(EGLDisplay dpy, EGLSyncKHR sync)
1340 {
1341    _EGLDisplay *disp = _eglLockDisplay(dpy);
1342    _EGLSync *s = _eglLookupSync(sync, disp);
1343    _EGLDriver *drv;
1344    EGLBoolean ret;
1345
1346    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
1347    assert(disp->Extensions.KHR_reusable_sync ||
1348           disp->Extensions.KHR_fence_sync);
1349
1350    _eglUnlinkSync(s);
1351    ret = drv->API.DestroySyncKHR(drv, disp, s);
1352
1353    RETURN_EGL_EVAL(disp, ret);
1354 }
1355
1356
1357 static EGLint EGLAPIENTRY
1358 eglClientWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout)
1359 {
1360    _EGLDisplay *disp = _eglLockDisplay(dpy);
1361    _EGLSync *s = _eglLookupSync(sync, disp);
1362    _EGLDriver *drv;
1363    EGLint ret;
1364
1365    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
1366    assert(disp->Extensions.KHR_reusable_sync ||
1367           disp->Extensions.KHR_fence_sync);
1368
1369    if (s->SyncStatus == EGL_SIGNALED_KHR)
1370       RETURN_EGL_EVAL(disp, EGL_CONDITION_SATISFIED_KHR);
1371
1372    ret = drv->API.ClientWaitSyncKHR(drv, disp, s, flags, timeout);
1373
1374    RETURN_EGL_EVAL(disp, ret);
1375 }
1376
1377
1378 static EGLint EGLAPIENTRY
1379 eglWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags)
1380 {
1381    _EGLDisplay *disp = _eglLockDisplay(dpy);
1382    _EGLSync *s = _eglLookupSync(sync, disp);
1383    _EGLContext *ctx = _eglGetCurrentContext();
1384    _EGLDriver *drv;
1385    EGLint ret;
1386
1387    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
1388    assert(disp->Extensions.KHR_wait_sync);
1389
1390    /* return an error if the client API doesn't support GL_OES_EGL_sync */
1391    if (ctx == EGL_NO_CONTEXT || ctx->ClientAPI != EGL_OPENGL_ES_API)
1392       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_FALSE);
1393
1394    /* the API doesn't allow any flags yet */
1395    if (flags != 0)
1396       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
1397
1398    ret = drv->API.WaitSyncKHR(drv, disp, s);
1399
1400    RETURN_EGL_EVAL(disp, ret);
1401 }
1402
1403
1404 static EGLBoolean EGLAPIENTRY
1405 eglSignalSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLenum mode)
1406 {
1407    _EGLDisplay *disp = _eglLockDisplay(dpy);
1408    _EGLSync *s = _eglLookupSync(sync, disp);
1409    _EGLDriver *drv;
1410    EGLBoolean ret;
1411
1412    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
1413    assert(disp->Extensions.KHR_reusable_sync);
1414    ret = drv->API.SignalSyncKHR(drv, disp, s, mode);
1415
1416    RETURN_EGL_EVAL(disp, ret);
1417 }
1418
1419
1420 static EGLBoolean EGLAPIENTRY
1421 eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint attribute, EGLint *value)
1422 {
1423    _EGLDisplay *disp = _eglLockDisplay(dpy);
1424    _EGLSync *s = _eglLookupSync(sync, disp);
1425    _EGLDriver *drv;
1426    EGLBoolean ret;
1427
1428    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
1429    assert(disp->Extensions.KHR_reusable_sync ||
1430           disp->Extensions.KHR_fence_sync);
1431    ret = drv->API.GetSyncAttribKHR(drv, disp, s, attribute, value);
1432
1433    RETURN_EGL_EVAL(disp, ret);
1434 }
1435
1436
1437 #ifdef EGL_NOK_swap_region
1438
1439 static EGLBoolean EGLAPIENTRY
1440 eglSwapBuffersRegionNOK(EGLDisplay dpy, EGLSurface surface,
1441                         EGLint numRects, const EGLint *rects)
1442 {
1443    _EGLContext *ctx = _eglGetCurrentContext();
1444    _EGLDisplay *disp = _eglLockDisplay(dpy);
1445    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1446    _EGLDriver *drv;
1447    EGLBoolean ret;
1448
1449    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1450
1451    if (!disp->Extensions.NOK_swap_region)
1452       RETURN_EGL_EVAL(disp, EGL_FALSE);
1453
1454    /* surface must be bound to current context in EGL 1.4 */
1455    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
1456        surf != ctx->DrawSurface)
1457       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
1458
1459    ret = drv->API.SwapBuffersRegionNOK(drv, disp, surf, numRects, rects);
1460
1461    RETURN_EGL_EVAL(disp, ret);
1462 }
1463
1464 #endif /* EGL_NOK_swap_region */
1465
1466
1467 #ifdef EGL_MESA_drm_image
1468
1469 static EGLImageKHR EGLAPIENTRY
1470 eglCreateDRMImageMESA(EGLDisplay dpy, const EGLint *attr_list)
1471 {
1472    _EGLDisplay *disp = _eglLockDisplay(dpy);
1473    _EGLDriver *drv;
1474    _EGLImage *img;
1475    EGLImageKHR ret;
1476
1477    _EGL_CHECK_DISPLAY(disp, EGL_NO_IMAGE_KHR, drv);
1478    if (!disp->Extensions.MESA_drm_image)
1479       RETURN_EGL_EVAL(disp, EGL_NO_IMAGE_KHR);
1480
1481    img = drv->API.CreateDRMImageMESA(drv, disp, attr_list);
1482    ret = (img) ? _eglLinkImage(img) : EGL_NO_IMAGE_KHR;
1483
1484    RETURN_EGL_EVAL(disp, ret);
1485 }
1486
1487 static EGLBoolean EGLAPIENTRY
1488 eglExportDRMImageMESA(EGLDisplay dpy, EGLImageKHR image,
1489                       EGLint *name, EGLint *handle, EGLint *stride)
1490 {
1491    _EGLDisplay *disp = _eglLockDisplay(dpy);
1492    _EGLImage *img = _eglLookupImage(image, disp);
1493    _EGLDriver *drv;
1494    EGLBoolean ret;
1495
1496    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
1497    assert(disp->Extensions.MESA_drm_image);
1498
1499    if (!img)
1500       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
1501
1502    ret = drv->API.ExportDRMImageMESA(drv, disp, img, name, handle, stride);
1503
1504    RETURN_EGL_EVAL(disp, ret);
1505 }
1506
1507 #endif
1508
1509 #ifdef EGL_WL_bind_wayland_display
1510 struct wl_display;
1511
1512 static EGLBoolean EGLAPIENTRY
1513 eglBindWaylandDisplayWL(EGLDisplay dpy, struct wl_display *display)
1514 {
1515    _EGLDisplay *disp = _eglLockDisplay(dpy);
1516    _EGLDriver *drv;
1517    EGLBoolean ret;
1518
1519    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
1520    assert(disp->Extensions.WL_bind_wayland_display);
1521
1522    if (!display)
1523       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
1524
1525    ret = drv->API.BindWaylandDisplayWL(drv, disp, display);
1526
1527    RETURN_EGL_EVAL(disp, ret);
1528 }
1529
1530 static EGLBoolean EGLAPIENTRY
1531 eglUnbindWaylandDisplayWL(EGLDisplay dpy, struct wl_display *display)
1532 {
1533    _EGLDisplay *disp = _eglLockDisplay(dpy);
1534    _EGLDriver *drv;
1535    EGLBoolean ret;
1536
1537    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
1538    assert(disp->Extensions.WL_bind_wayland_display);
1539
1540    if (!display)
1541       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
1542
1543    ret = drv->API.UnbindWaylandDisplayWL(drv, disp, display);
1544
1545    RETURN_EGL_EVAL(disp, ret);
1546 }
1547
1548 static EGLBoolean EGLAPIENTRY
1549 eglQueryWaylandBufferWL(EGLDisplay dpy, struct wl_resource *buffer,
1550                         EGLint attribute, EGLint *value)
1551 {
1552    _EGLDisplay *disp = _eglLockDisplay(dpy);
1553    _EGLDriver *drv;
1554    EGLBoolean ret;
1555
1556    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
1557    assert(disp->Extensions.WL_bind_wayland_display);
1558
1559    if (!buffer)
1560       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
1561
1562    ret = drv->API.QueryWaylandBufferWL(drv, disp, buffer, attribute, value);
1563
1564    RETURN_EGL_EVAL(disp, ret);
1565 }
1566 #endif
1567
1568 #ifdef EGL_WL_create_wayland_buffer_from_image
1569 static struct wl_buffer * EGLAPIENTRY
1570 eglCreateWaylandBufferFromImageWL(EGLDisplay dpy, EGLImageKHR image)
1571 {
1572    _EGLDisplay *disp = _eglLockDisplay(dpy);
1573    _EGLImage *img;
1574    _EGLDriver *drv;
1575    struct wl_buffer *ret;
1576
1577    _EGL_CHECK_DISPLAY(disp, NULL, drv);
1578    assert(disp->Extensions.WL_create_wayland_buffer_from_image);
1579
1580    img = _eglLookupImage(image, disp);
1581
1582    if (!img)
1583       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, NULL);
1584
1585    ret = drv->API.CreateWaylandBufferFromImageWL(drv, disp, img);
1586
1587    RETURN_EGL_EVAL(disp, ret);
1588 }
1589 #endif
1590
1591 static EGLBoolean EGLAPIENTRY
1592 eglPostSubBufferNV(EGLDisplay dpy, EGLSurface surface,
1593                    EGLint x, EGLint y, EGLint width, EGLint height)
1594 {
1595    _EGLDisplay *disp = _eglLockDisplay(dpy);
1596    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1597    _EGLDriver *drv;
1598    EGLBoolean ret;
1599
1600    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1601
1602    if (!disp->Extensions.NV_post_sub_buffer)
1603       RETURN_EGL_EVAL(disp, EGL_FALSE);
1604
1605    ret = drv->API.PostSubBufferNV(drv, disp, surf, x, y, width, height);
1606
1607    RETURN_EGL_EVAL(disp, ret);
1608 }
1609
1610 static EGLBoolean EGLAPIENTRY
1611 eglGetSyncValuesCHROMIUM(EGLDisplay display, EGLSurface surface,
1612                          EGLuint64KHR *ust, EGLuint64KHR *msc,
1613                          EGLuint64KHR *sbc)
1614 {
1615    _EGLDisplay *disp = _eglLockDisplay(display);
1616    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1617    _EGLDriver *drv;
1618    EGLBoolean ret;
1619
1620    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1621    if (!disp->Extensions.CHROMIUM_sync_control)
1622       RETURN_EGL_EVAL(disp, EGL_FALSE);
1623
1624    if (!ust || !msc || !sbc)
1625       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
1626
1627    ret = drv->API.GetSyncValuesCHROMIUM(disp, surf, ust, msc, sbc);
1628
1629    RETURN_EGL_EVAL(disp, ret);
1630 }
1631
1632 #ifdef EGL_MESA_image_dma_buf_export
1633 static EGLBoolean EGLAPIENTRY
1634 eglExportDMABUFImageQueryMESA(EGLDisplay dpy, EGLImageKHR image,
1635                               EGLint *fourcc, EGLint *nplanes,
1636                               EGLuint64KHR *modifiers)
1637 {
1638    _EGLDisplay *disp = _eglLockDisplay(dpy);
1639    _EGLImage *img = _eglLookupImage(image, disp);
1640    _EGLDriver *drv;
1641    EGLBoolean ret;
1642
1643    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
1644    assert(disp->Extensions.MESA_image_dma_buf_export);
1645
1646    if (!img)
1647       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
1648
1649    ret = drv->API.ExportDMABUFImageQueryMESA(drv, disp, img, fourcc, nplanes,
1650                                              modifiers);
1651
1652    RETURN_EGL_EVAL(disp, ret);
1653 }
1654
1655 static EGLBoolean EGLAPIENTRY
1656 eglExportDMABUFImageMESA(EGLDisplay dpy, EGLImageKHR image,
1657                          int *fds, EGLint *strides, EGLint *offsets)
1658 {
1659    _EGLDisplay *disp = _eglLockDisplay(dpy);
1660    _EGLImage *img = _eglLookupImage(image, disp);
1661    _EGLDriver *drv;
1662    EGLBoolean ret;
1663
1664    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
1665    assert(disp->Extensions.MESA_image_dma_buf_export);
1666
1667    if (!img)
1668       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
1669
1670    ret = drv->API.ExportDMABUFImageMESA(drv, disp, img, fds, strides, offsets);
1671
1672    RETURN_EGL_EVAL(disp, ret);
1673 }
1674 #endif
1675
1676 __eglMustCastToProperFunctionPointerType EGLAPIENTRY
1677 eglGetProcAddress(const char *procname)
1678 {
1679    static const struct {
1680       const char *name;
1681       _EGLProc function;
1682    } egl_functions[] = {
1683       /* core functions queryable in the presence of
1684        * EGL_KHR_get_all_proc_addresses or EGL 1.5
1685        */
1686       /* alphabetical order */
1687       { "eglBindAPI", (_EGLProc) eglBindAPI },
1688       { "eglBindTexImage", (_EGLProc) eglBindTexImage },
1689       { "eglChooseConfig", (_EGLProc) eglChooseConfig },
1690       { "eglCopyBuffers", (_EGLProc) eglCopyBuffers },
1691       { "eglCreateContext", (_EGLProc) eglCreateContext },
1692       { "eglCreatePbufferFromClientBuffer", (_EGLProc) eglCreatePbufferFromClientBuffer },
1693       { "eglCreatePbufferSurface", (_EGLProc) eglCreatePbufferSurface },
1694       { "eglCreatePixmapSurface", (_EGLProc) eglCreatePixmapSurface },
1695       { "eglCreateWindowSurface", (_EGLProc) eglCreateWindowSurface },
1696       { "eglDestroyContext", (_EGLProc) eglDestroyContext },
1697       { "eglDestroySurface", (_EGLProc) eglDestroySurface },
1698       { "eglGetConfigAttrib", (_EGLProc) eglGetConfigAttrib },
1699       { "eglGetConfigs", (_EGLProc) eglGetConfigs },
1700       { "eglGetCurrentContext", (_EGLProc) eglGetCurrentContext },
1701       { "eglGetCurrentDisplay", (_EGLProc) eglGetCurrentDisplay },
1702       { "eglGetCurrentSurface", (_EGLProc) eglGetCurrentSurface },
1703       { "eglGetDisplay", (_EGLProc) eglGetDisplay },
1704       { "eglGetError", (_EGLProc) eglGetError },
1705       { "eglGetProcAddress", (_EGLProc) eglGetProcAddress },
1706       { "eglInitialize", (_EGLProc) eglInitialize },
1707       { "eglMakeCurrent", (_EGLProc) eglMakeCurrent },
1708       { "eglQueryAPI", (_EGLProc) eglQueryAPI },
1709       { "eglQueryContext", (_EGLProc) eglQueryContext },
1710       { "eglQueryString", (_EGLProc) eglQueryString },
1711       { "eglQuerySurface", (_EGLProc) eglQuerySurface },
1712       { "eglReleaseTexImage", (_EGLProc) eglReleaseTexImage },
1713       { "eglReleaseThread", (_EGLProc) eglReleaseThread },
1714       { "eglSurfaceAttrib", (_EGLProc) eglSurfaceAttrib },
1715       { "eglSwapBuffers", (_EGLProc) eglSwapBuffers },
1716       { "eglSwapInterval", (_EGLProc) eglSwapInterval },
1717       { "eglTerminate", (_EGLProc) eglTerminate },
1718       { "eglWaitClient", (_EGLProc) eglWaitClient },
1719       { "eglWaitGL", (_EGLProc) eglWaitGL },
1720       { "eglWaitNative", (_EGLProc) eglWaitNative },
1721 #ifdef EGL_MESA_drm_display
1722       { "eglGetDRMDisplayMESA", (_EGLProc) eglGetDRMDisplayMESA },
1723 #endif
1724       { "eglCreateImageKHR", (_EGLProc) eglCreateImageKHR },
1725       { "eglDestroyImageKHR", (_EGLProc) eglDestroyImageKHR },
1726       { "eglCreateSyncKHR", (_EGLProc) eglCreateSyncKHR },
1727       { "eglCreateSync64KHR", (_EGLProc) eglCreateSync64KHR },
1728       { "eglDestroySyncKHR", (_EGLProc) eglDestroySyncKHR },
1729       { "eglClientWaitSyncKHR", (_EGLProc) eglClientWaitSyncKHR },
1730       { "eglWaitSyncKHR", (_EGLProc) eglWaitSyncKHR },
1731       { "eglSignalSyncKHR", (_EGLProc) eglSignalSyncKHR },
1732       { "eglGetSyncAttribKHR", (_EGLProc) eglGetSyncAttribKHR },
1733 #ifdef EGL_NOK_swap_region
1734       { "eglSwapBuffersRegionNOK", (_EGLProc) eglSwapBuffersRegionNOK },
1735 #endif
1736 #ifdef EGL_MESA_drm_image
1737       { "eglCreateDRMImageMESA", (_EGLProc) eglCreateDRMImageMESA },
1738       { "eglExportDRMImageMESA", (_EGLProc) eglExportDRMImageMESA },
1739 #endif
1740 #ifdef EGL_WL_bind_wayland_display
1741       { "eglBindWaylandDisplayWL", (_EGLProc) eglBindWaylandDisplayWL },
1742       { "eglUnbindWaylandDisplayWL", (_EGLProc) eglUnbindWaylandDisplayWL },
1743       { "eglQueryWaylandBufferWL", (_EGLProc) eglQueryWaylandBufferWL },
1744 #endif
1745 #ifdef EGL_WL_create_wayland_buffer_from_image
1746       { "eglCreateWaylandBufferFromImageWL", (_EGLProc) eglCreateWaylandBufferFromImageWL },
1747 #endif
1748       { "eglPostSubBufferNV", (_EGLProc) eglPostSubBufferNV },
1749 #ifdef EGL_EXT_swap_buffers_with_damage
1750       { "eglSwapBuffersWithDamageEXT", (_EGLProc) eglSwapBuffersWithDamageEXT },
1751 #endif
1752       { "eglGetPlatformDisplayEXT", (_EGLProc) eglGetPlatformDisplayEXT },
1753       { "eglCreatePlatformWindowSurfaceEXT", (_EGLProc) eglCreatePlatformWindowSurfaceEXT },
1754       { "eglCreatePlatformPixmapSurfaceEXT", (_EGLProc) eglCreatePlatformPixmapSurfaceEXT },
1755       { "eglGetSyncValuesCHROMIUM", (_EGLProc) eglGetSyncValuesCHROMIUM },
1756 #ifdef EGL_MESA_image_dma_buf_export
1757       { "eglExportDMABUFImageQueryMESA", (_EGLProc) eglExportDMABUFImageQueryMESA },
1758       { "eglExportDMABUFImageMESA", (_EGLProc) eglExportDMABUFImageMESA },
1759 #endif
1760       { NULL, NULL }
1761    };
1762    EGLint i;
1763    _EGLProc ret;
1764
1765    if (!procname)
1766       RETURN_EGL_SUCCESS(NULL, NULL);
1767
1768    ret = NULL;
1769    if (strncmp(procname, "egl", 3) == 0) {
1770       for (i = 0; egl_functions[i].name; i++) {
1771          if (strcmp(egl_functions[i].name, procname) == 0) {
1772             ret = egl_functions[i].function;
1773             break;
1774          }
1775       }
1776    }
1777    if (!ret)
1778       ret = _eglGetDriverProc(procname);
1779
1780    RETURN_EGL_SUCCESS(NULL, ret);
1781 }