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 #ifdef USE_LIBGLVND
  87 #define EGLAPI
  88 #undef PUBLIC
  89 #define PUBLIC
  90 #endif
  91
  92 #include <stdio.h>
  93 #include <stdlib.h>
  94 #include <string.h>
  95 #include "c99_compat.h"
  96 #include "c11/threads.h"
  97 #include "util/macros.h"
  98
  99 #include "egldefines.h"
 100 #include "eglglobals.h"
 101 #include "eglcontext.h"
 102 #include "egldisplay.h"
 103 #include "egltypedefs.h"
 104 #include "eglcurrent.h"
 105 #include "egldevice.h"
 106 #include "egldriver.h"
 107 #include "eglsurface.h"
 108 #include "eglconfig.h"
 109 #include "eglimage.h"
 110 #include "eglsync.h"
 111
 112 #include "GL/mesa_glinterop.h"
 113
 114 /**
 115  * Macros to help return an API entrypoint.
 116  *
 117  * These macros will unlock the display and record the error code.
 118  */
 119 #define RETURN_EGL_ERROR(disp, err, ret)        \
 120    do {                                         \
 121       if (disp)                                 \
 122          _eglUnlockDisplay(disp);               \
 123       /* EGL error codes are non-zero */        \
 124       if (err)                                  \
 125          _eglError(err, __func__);              \
 126       return ret;                               \
 127    } while (0)
 128
 129 #define RETURN_EGL_SUCCESS(disp, ret) \
 130    RETURN_EGL_ERROR(disp, EGL_SUCCESS, ret)
 131
 132 /* record EGL_SUCCESS only when ret evaluates to true */
 133 #define RETURN_EGL_EVAL(disp, ret) \
 134    RETURN_EGL_ERROR(disp, (ret) ? EGL_SUCCESS : 0, ret)
 135
 136
 137 /*
 138  * A bunch of macros and checks to simplify error checking.
 139  */
 140
 141 #define _EGL_CHECK_DISPLAY(disp, ret, drv)         \
 142    do {                                            \
 143       drv = _eglCheckDisplay(disp, __func__);      \
 144       if (!drv)                                    \
 145          RETURN_EGL_ERROR(disp, 0, ret);           \
 146    } while (0)
 147
 148 #define _EGL_CHECK_OBJECT(disp, type, obj, ret, drv)      \
 149    do {                                                   \
 150       drv = _eglCheck ## type(disp, obj, __func__);       \
 151       if (!drv)                                           \
 152          RETURN_EGL_ERROR(disp, 0, ret);                  \
 153    } while (0)
 154
 155 #define _EGL_CHECK_SURFACE(disp, surf, ret, drv) \
 156    _EGL_CHECK_OBJECT(disp, Surface, surf, ret, drv)
 157
 158 #define _EGL_CHECK_CONTEXT(disp, context, ret, drv) \
 159    _EGL_CHECK_OBJECT(disp, Context, context, ret, drv)
 160
 161 #define _EGL_CHECK_CONFIG(disp, conf, ret, drv) \
 162    _EGL_CHECK_OBJECT(disp, Config, conf, ret, drv)
 163
 164 #define _EGL_CHECK_SYNC(disp, s, ret, drv) \
 165    _EGL_CHECK_OBJECT(disp, Sync, s, ret, drv)
 166
 167
 168 struct _egl_entrypoint {
 169    const char *name;
 170    _EGLProc function;
 171 };
 172
 173
 174 static inline const _EGLDriver *
 175 _eglCheckDisplay(_EGLDisplay *disp, const char *msg)
 176 {
 177    if (!disp) {
 178       _eglError(EGL_BAD_DISPLAY, msg);
 179       return NULL;
 180    }
 181    if (!disp->Initialized) {
 182       _eglError(EGL_NOT_INITIALIZED, msg);
 183       return NULL;
 184    }
 185    return disp->Driver;
 186 }
 187
 188
 189 static inline const _EGLDriver *
 190 _eglCheckSurface(_EGLDisplay *disp, _EGLSurface *surf, const char *msg)
 191 {
 192    const _EGLDriver *drv = _eglCheckDisplay(disp, msg);
 193    if (!drv)
 194       return NULL;
 195    if (!surf) {
 196       _eglError(EGL_BAD_SURFACE, msg);
 197       return NULL;
 198    }
 199    return drv;
 200 }
 201
 202
 203 static inline const _EGLDriver *
 204 _eglCheckContext(_EGLDisplay *disp, _EGLContext *context, const char *msg)
 205 {
 206    const _EGLDriver *drv = _eglCheckDisplay(disp, msg);
 207    if (!drv)
 208       return NULL;
 209    if (!context) {
 210       _eglError(EGL_BAD_CONTEXT, msg);
 211       return NULL;
 212    }
 213    return drv;
 214 }
 215
 216
 217 static inline const _EGLDriver *
 218 _eglCheckConfig(_EGLDisplay *disp, _EGLConfig *conf, const char *msg)
 219 {
 220    const _EGLDriver *drv = _eglCheckDisplay(disp, msg);
 221    if (!drv)
 222       return NULL;
 223    if (!conf) {
 224       _eglError(EGL_BAD_CONFIG, msg);
 225       return NULL;
 226    }
 227    return drv;
 228 }
 229
 230
 231 static inline const _EGLDriver *
 232 _eglCheckSync(_EGLDisplay *disp, _EGLSync *s, const char *msg)
 233 {
 234    const _EGLDriver *drv = _eglCheckDisplay(disp, msg);
 235    if (!drv)
 236       return NULL;
 237    if (!s) {
 238       _eglError(EGL_BAD_PARAMETER, msg);
 239       return NULL;
 240    }
 241    return drv;
 242 }
 243
 244
 245 /**
 246  * Lookup and lock a display.
 247  */
 248 static inline _EGLDisplay *
 249 _eglLockDisplay(EGLDisplay dpy)
 250 {
 251    _EGLDisplay *disp = _eglLookupDisplay(dpy);
 252    if (disp)
 253       mtx_lock(&disp->Mutex);
 254    return disp;
 255 }
 256
 257
 258 /**
 259  * Unlock a display.
 260  */
 261 static inline void
 262 _eglUnlockDisplay(_EGLDisplay *disp)
 263 {
 264    mtx_unlock(&disp->Mutex);
 265 }
 266
 267 static EGLBoolean
 268 _eglSetFuncName(const char *funcName, _EGLDisplay *disp, EGLenum objectType, _EGLResource *object)
 269 {
 270    _EGLThreadInfo *thr = _eglGetCurrentThread();
 271    if (!_eglIsCurrentThreadDummy()) {
 272       thr->CurrentFuncName = funcName;
 273       thr->CurrentObjectLabel = NULL;
 274
 275       if (objectType == EGL_OBJECT_THREAD_KHR)
 276          thr->CurrentObjectLabel = thr->Label;
 277       else if (objectType == EGL_OBJECT_DISPLAY_KHR && disp)
 278          thr->CurrentObjectLabel = disp->Label;
 279       else if (object)
 280          thr->CurrentObjectLabel = object->Label;
 281
 282       return EGL_TRUE;
 283    }
 284
 285    _eglDebugReport(EGL_BAD_ALLOC, funcName, EGL_DEBUG_MSG_CRITICAL_KHR, NULL);
 286    return EGL_FALSE;
 287 }
 288
 289 #define _EGL_FUNC_START(disp, objectType, object, ret) \
 290    do { \
 291       if (!_eglSetFuncName(__func__, disp, objectType, (_EGLResource *) object)) { \
 292          if (disp)                                 \
 293             _eglUnlockDisplay(disp);               \
 294          return ret; \
 295       } \
 296    } while(0)
 297
 298 /**
 299  * Convert an attribute list from EGLint[] to EGLAttrib[].
 300  *
 301  * Return an EGL error code. The output parameter out_attrib_list is modified
 302  * only on success.
 303  */
 304 static EGLint
 305 _eglConvertIntsToAttribs(const EGLint *int_list, EGLAttrib **out_attrib_list)
 306 {
 307    size_t len = 0;
 308    EGLAttrib *attrib_list;
 309
 310    if (int_list) {
 311       while (int_list[2*len] != EGL_NONE)
 312          ++len;
 313    }
 314
 315    if (len == 0) {
 316       *out_attrib_list = NULL;
 317       return EGL_SUCCESS;
 318    }
 319
 320    if (2*len + 1 > SIZE_MAX / sizeof(EGLAttrib))
 321       return EGL_BAD_ALLOC;
 322
 323    attrib_list = malloc((2*len + 1) * sizeof(EGLAttrib));
 324    if (!attrib_list)
 325       return EGL_BAD_ALLOC;
 326
 327    for (size_t i = 0; i < len; ++i) {
 328       attrib_list[2*i + 0] = int_list[2*i + 0];
 329       attrib_list[2*i + 1] = int_list[2*i + 1];
 330    }
 331
 332    attrib_list[2*len] = EGL_NONE;
 333
 334    *out_attrib_list = attrib_list;
 335    return EGL_SUCCESS;
 336 }
 337
 338
 339 static EGLint *
 340 _eglConvertAttribsToInt(const EGLAttrib *attr_list)
 341 {
 342    size_t size = _eglNumAttribs(attr_list);
 343    EGLint *int_attribs = NULL;
 344
 345    /* Convert attributes from EGLAttrib[] to EGLint[] */
 346    if (size) {
 347       int_attribs = calloc(size, sizeof(int_attribs[0]));
 348       if (!int_attribs)
 349          return NULL;
 350
 351       for (size_t i = 0; i < size; i++)
 352          int_attribs[i] = attr_list[i];
 353    }
 354    return int_attribs;
 355 }
 356
 357
 358 /**
 359  * This is typically the first EGL function that an application calls.
 360  * It associates a private _EGLDisplay object to the native display.
 361  */
 362 EGLDisplay EGLAPIENTRY
 363 eglGetDisplay(EGLNativeDisplayType nativeDisplay)
 364 {
 365    _EGLPlatformType plat;
 366    _EGLDisplay *disp;
 367    void *native_display_ptr;
 368
 369    _EGL_FUNC_START(NULL, EGL_OBJECT_THREAD_KHR, NULL, EGL_NO_DISPLAY);
 370
 371    STATIC_ASSERT(sizeof(void*) == sizeof(nativeDisplay));
 372    native_display_ptr = (void*) nativeDisplay;
 373
 374    plat = _eglGetNativePlatform(native_display_ptr);
 375    disp = _eglFindDisplay(plat, native_display_ptr, NULL);
 376    return _eglGetDisplayHandle(disp);
 377 }
 378
 379 static EGLDisplay
 380 _eglGetPlatformDisplayCommon(EGLenum platform, void *native_display,
 381                              const EGLAttrib *attrib_list)
 382 {
 383    _EGLDisplay *disp;
 384
 385    switch (platform) {
 386 #ifdef HAVE_X11_PLATFORM
 387    case EGL_PLATFORM_X11_EXT:
 388       disp = _eglGetX11Display((Display*) native_display, attrib_list);
 389       break;
 390 #endif
 391 #ifdef HAVE_DRM_PLATFORM
 392    case EGL_PLATFORM_GBM_MESA:
 393       disp = _eglGetGbmDisplay((struct gbm_device*) native_display,
 394                               attrib_list);
 395       break;
 396 #endif
 397 #ifdef HAVE_WAYLAND_PLATFORM
 398    case EGL_PLATFORM_WAYLAND_EXT:
 399       disp = _eglGetWaylandDisplay((struct wl_display*) native_display,
 400                                   attrib_list);
 401       break;
 402 #endif
 403    case EGL_PLATFORM_SURFACELESS_MESA:
 404       disp = _eglGetSurfacelessDisplay(native_display, attrib_list);
 405       break;
 406 #ifdef HAVE_ANDROID_PLATFORM
 407    case EGL_PLATFORM_ANDROID_KHR:
 408       disp = _eglGetAndroidDisplay(native_display, attrib_list);
 409       break;
 410 #endif
 411    case EGL_PLATFORM_DEVICE_EXT:
 412       disp = _eglGetDeviceDisplay(native_display, attrib_list);
 413       break;
 414    default:
 415       RETURN_EGL_ERROR(NULL, EGL_BAD_PARAMETER, NULL);
 416    }
 417
 418    return _eglGetDisplayHandle(disp);
 419 }
 420
 421 static EGLDisplay EGLAPIENTRY
 422 eglGetPlatformDisplayEXT(EGLenum platform, void *native_display,
 423                          const EGLint *int_attribs)
 424 {
 425    EGLAttrib *attrib_list;
 426    EGLDisplay disp;
 427
 428    _EGL_FUNC_START(NULL, EGL_OBJECT_THREAD_KHR, NULL, EGL_NO_DISPLAY);
 429
 430    if (_eglConvertIntsToAttribs(int_attribs, &attrib_list) != EGL_SUCCESS)
 431       RETURN_EGL_ERROR(NULL, EGL_BAD_ALLOC, NULL);
 432
 433    disp = _eglGetPlatformDisplayCommon(platform, native_display, attrib_list);
 434    free(attrib_list);
 435    return disp;
 436 }
 437
 438 EGLDisplay EGLAPIENTRY
 439 eglGetPlatformDisplay(EGLenum platform, void *native_display,
 440                       const EGLAttrib *attrib_list)
 441 {
 442    _EGL_FUNC_START(NULL, EGL_OBJECT_THREAD_KHR, NULL, EGL_NO_DISPLAY);
 443    return _eglGetPlatformDisplayCommon(platform, native_display, attrib_list);
 444 }
 445
 446 /**
 447  * Copy the extension into the string and update the string pointer.
 448  */
 449 static EGLint
 450 _eglAppendExtension(char **str, const char *ext)
 451 {
 452    char *s = *str;
 453    size_t len = strlen(ext);
 454
 455    if (s) {
 456       memcpy(s, ext, len);
 457       s[len++] = ' ';
 458       s[len] = '\0';
 459
 460       *str += len;
 461    }
 462    else {
 463       len++;
 464    }
 465
 466    return (EGLint) len;
 467 }
 468
 469 /**
 470  * Examine the individual extension enable/disable flags and recompute
 471  * the driver's Extensions string.
 472  */
 473 static void
 474 _eglCreateExtensionsString(_EGLDisplay *disp)
 475 {
 476 #define _EGL_CHECK_EXTENSION(ext)                                          \
 477    do {                                                                    \
 478       if (disp->Extensions.ext) {                                           \
 479          _eglAppendExtension(&exts, "EGL_" #ext);                          \
 480          assert(exts <= disp->ExtensionsString + _EGL_MAX_EXTENSIONS_LEN);  \
 481       }                                                                    \
 482    } while (0)
 483
 484    char *exts = disp->ExtensionsString;
 485
 486    /* Please keep these sorted alphabetically. */
 487    _EGL_CHECK_EXTENSION(ANDROID_blob_cache);
 488    _EGL_CHECK_EXTENSION(ANDROID_framebuffer_target);
 489    _EGL_CHECK_EXTENSION(ANDROID_image_native_buffer);
 490    _EGL_CHECK_EXTENSION(ANDROID_native_fence_sync);
 491    _EGL_CHECK_EXTENSION(ANDROID_recordable);
 492
 493    _EGL_CHECK_EXTENSION(CHROMIUM_sync_control);
 494
 495    _EGL_CHECK_EXTENSION(EXT_buffer_age);
 496    _EGL_CHECK_EXTENSION(EXT_create_context_robustness);
 497    _EGL_CHECK_EXTENSION(EXT_image_dma_buf_import);
 498    _EGL_CHECK_EXTENSION(EXT_image_dma_buf_import_modifiers);
 499    _EGL_CHECK_EXTENSION(EXT_surface_CTA861_3_metadata);
 500    _EGL_CHECK_EXTENSION(EXT_surface_SMPTE2086_metadata);
 501    _EGL_CHECK_EXTENSION(EXT_swap_buffers_with_damage);
 502
 503    _EGL_CHECK_EXTENSION(IMG_context_priority);
 504
 505    _EGL_CHECK_EXTENSION(KHR_cl_event2);
 506    _EGL_CHECK_EXTENSION(KHR_config_attribs);
 507    _EGL_CHECK_EXTENSION(KHR_context_flush_control);
 508    _EGL_CHECK_EXTENSION(KHR_create_context);
 509    _EGL_CHECK_EXTENSION(KHR_create_context_no_error);
 510    _EGL_CHECK_EXTENSION(KHR_fence_sync);
 511    _EGL_CHECK_EXTENSION(KHR_get_all_proc_addresses);
 512    _EGL_CHECK_EXTENSION(KHR_gl_colorspace);
 513    _EGL_CHECK_EXTENSION(KHR_gl_renderbuffer_image);
 514    _EGL_CHECK_EXTENSION(KHR_gl_texture_2D_image);
 515    _EGL_CHECK_EXTENSION(KHR_gl_texture_3D_image);
 516    _EGL_CHECK_EXTENSION(KHR_gl_texture_cubemap_image);
 517    if (disp->Extensions.KHR_image_base && disp->Extensions.KHR_image_pixmap)
 518       disp->Extensions.KHR_image = EGL_TRUE;
 519    _EGL_CHECK_EXTENSION(KHR_image);
 520    _EGL_CHECK_EXTENSION(KHR_image_base);
 521    _EGL_CHECK_EXTENSION(KHR_image_pixmap);
 522    _EGL_CHECK_EXTENSION(KHR_mutable_render_buffer);
 523    _EGL_CHECK_EXTENSION(KHR_no_config_context);
 524    _EGL_CHECK_EXTENSION(KHR_partial_update);
 525    _EGL_CHECK_EXTENSION(KHR_reusable_sync);
 526    _EGL_CHECK_EXTENSION(KHR_surfaceless_context);
 527    if (disp->Extensions.EXT_swap_buffers_with_damage)
 528       _eglAppendExtension(&exts, "EGL_KHR_swap_buffers_with_damage");
 529    _EGL_CHECK_EXTENSION(EXT_pixel_format_float);
 530    _EGL_CHECK_EXTENSION(KHR_wait_sync);
 531
 532    if (disp->Extensions.KHR_no_config_context)
 533       _eglAppendExtension(&exts, "EGL_MESA_configless_context");
 534    _EGL_CHECK_EXTENSION(MESA_drm_image);
 535    _EGL_CHECK_EXTENSION(MESA_image_dma_buf_export);
 536    _EGL_CHECK_EXTENSION(MESA_query_driver);
 537
 538    _EGL_CHECK_EXTENSION(NOK_swap_region);
 539    _EGL_CHECK_EXTENSION(NOK_texture_from_pixmap);
 540
 541    _EGL_CHECK_EXTENSION(NV_post_sub_buffer);
 542
 543    _EGL_CHECK_EXTENSION(WL_bind_wayland_display);
 544    _EGL_CHECK_EXTENSION(WL_create_wayland_buffer_from_image);
 545
 546 #undef _EGL_CHECK_EXTENSION
 547 }
 548
 549 static void
 550 _eglCreateAPIsString(_EGLDisplay *disp)
 551 {
 552 #define addstr(str) \
 553    { \
 554       const size_t old_len = strlen(disp->ClientAPIsString); \
 555       const size_t add_len = sizeof(str); \
 556       const size_t max_len = sizeof(disp->ClientAPIsString) - 1; \
 557       if (old_len + add_len <= max_len) \
 558          strcat(disp->ClientAPIsString, str " "); \
 559       else \
 560          assert(!"disp->ClientAPIsString is not large enough"); \
 561    }
 562
 563    if (disp->ClientAPIs & EGL_OPENGL_BIT)
 564       addstr("OpenGL");
 565
 566    if (disp->ClientAPIs & EGL_OPENGL_ES_BIT ||
 567        disp->ClientAPIs & EGL_OPENGL_ES2_BIT ||
 568        disp->ClientAPIs & EGL_OPENGL_ES3_BIT_KHR) {
 569       addstr("OpenGL_ES");
 570    }
 571
 572    if (disp->ClientAPIs & EGL_OPENVG_BIT)
 573       addstr("OpenVG");
 574
 575 #undef addstr
 576 }
 577
 578 static void
 579 _eglComputeVersion(_EGLDisplay *disp)
 580 {
 581    disp->Version = 14;
 582
 583    if (disp->Extensions.KHR_fence_sync &&
 584        disp->Extensions.KHR_cl_event2 &&
 585        disp->Extensions.KHR_wait_sync &&
 586        disp->Extensions.KHR_image_base &&
 587        disp->Extensions.KHR_gl_texture_2D_image &&
 588        disp->Extensions.KHR_gl_texture_3D_image &&
 589        disp->Extensions.KHR_gl_texture_cubemap_image &&
 590        disp->Extensions.KHR_gl_renderbuffer_image &&
 591        disp->Extensions.KHR_create_context &&
 592        disp->Extensions.EXT_create_context_robustness &&
 593        disp->Extensions.KHR_get_all_proc_addresses &&
 594        disp->Extensions.KHR_gl_colorspace &&
 595        disp->Extensions.KHR_surfaceless_context)
 596       disp->Version = 15;
 597
 598    /* For Android P and below limit the EGL version to 1.4 */
 599 #if defined(ANDROID) && ANDROID_API_LEVEL <= 28
 600    disp->Version = 14;
 601 #endif
 602 }
 603
 604 /**
 605  * This is typically the second EGL function that an application calls.
 606  * Here we load/initialize the actual hardware driver.
 607  */
 608 EGLBoolean EGLAPIENTRY
 609 eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
 610 {
 611    _EGLDisplay *disp = _eglLockDisplay(dpy);
 612
 613    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
 614
 615    if (!disp)
 616       RETURN_EGL_ERROR(NULL, EGL_BAD_DISPLAY, EGL_FALSE);
 617
 618    if (!disp->Initialized) {
 619       if (!_eglInitializeDisplay(disp))
 620          RETURN_EGL_ERROR(disp, EGL_NOT_INITIALIZED, EGL_FALSE);
 621
 622       /* limit to APIs supported by core */
 623       disp->ClientAPIs &= _EGL_API_ALL_BITS;
 624
 625       /* EGL_KHR_get_all_proc_addresses is a corner-case extension. The spec
 626        * classifies it as an EGL display extension, though conceptually it's an
 627        * EGL client extension.
 628        *
 629        * From the EGL_KHR_get_all_proc_addresses spec:
 630        *
 631        *    The EGL implementation must expose the name
 632        *    EGL_KHR_client_get_all_proc_addresses if and only if it exposes
 633        *    EGL_KHR_get_all_proc_addresses and supports
 634        *    EGL_EXT_client_extensions.
 635        *
 636        * Mesa unconditionally exposes both client extensions mentioned above,
 637        * so the spec requires that each EGLDisplay unconditionally expose
 638        * EGL_KHR_get_all_proc_addresses also.
 639        */
 640       disp->Extensions.KHR_get_all_proc_addresses = EGL_TRUE;
 641
 642       /* Extensions is used to provide EGL 1.3 functionality for 1.2 aware
 643        * programs. It is driver agnostic and handled in the main EGL code.
 644        */
 645       disp->Extensions.KHR_config_attribs = EGL_TRUE;
 646
 647       _eglComputeVersion(disp);
 648       _eglCreateExtensionsString(disp);
 649       _eglCreateAPIsString(disp);
 650       snprintf(disp->VersionString, sizeof(disp->VersionString),
 651                "%d.%d", disp->Version / 10, disp->Version % 10);
 652    }
 653
 654    /* Update applications version of major and minor if not NULL */
 655    if ((major != NULL) && (minor != NULL)) {
 656       *major = disp->Version / 10;
 657       *minor = disp->Version % 10;
 658    }
 659
 660    RETURN_EGL_SUCCESS(disp, EGL_TRUE);
 661 }
 662
 663
 664 EGLBoolean EGLAPIENTRY
 665 eglTerminate(EGLDisplay dpy)
 666 {
 667    _EGLDisplay *disp = _eglLockDisplay(dpy);
 668
 669    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
 670
 671    if (!disp)
 672       RETURN_EGL_ERROR(NULL, EGL_BAD_DISPLAY, EGL_FALSE);
 673
 674    if (disp->Initialized) {
 675       disp->Driver->Terminate(disp);
 676       /* do not reset disp->Driver */
 677       disp->ClientAPIsString[0] = 0;
 678       disp->Initialized = EGL_FALSE;
 679
 680       /* Reset blob cache funcs on terminate. */
 681       disp->BlobCacheSet = NULL;
 682       disp->BlobCacheGet = NULL;
 683    }
 684
 685    RETURN_EGL_SUCCESS(disp, EGL_TRUE);
 686 }
 687
 688
 689 const char * EGLAPIENTRY
 690 eglQueryString(EGLDisplay dpy, EGLint name)
 691 {
 692    _EGLDisplay *disp;
 693    const _EGLDriver *drv;
 694
 695 #if !USE_LIBGLVND
 696    if (dpy == EGL_NO_DISPLAY && name == EGL_EXTENSIONS) {
 697       RETURN_EGL_SUCCESS(NULL, _eglGlobal.ClientExtensionString);
 698    }
 699 #endif
 700
 701    disp = _eglLockDisplay(dpy);
 702    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, NULL);
 703    _EGL_CHECK_DISPLAY(disp, NULL, drv);
 704
 705    switch (name) {
 706    case EGL_VENDOR:
 707       RETURN_EGL_SUCCESS(disp, _EGL_VENDOR_STRING);
 708    case EGL_VERSION:
 709       RETURN_EGL_SUCCESS(disp, disp->VersionString);
 710    case EGL_EXTENSIONS:
 711       RETURN_EGL_SUCCESS(disp, disp->ExtensionsString);
 712    case EGL_CLIENT_APIS:
 713       RETURN_EGL_SUCCESS(disp, disp->ClientAPIsString);
 714    default:
 715       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, NULL);
 716    }
 717 }
 718
 719
 720 EGLBoolean EGLAPIENTRY
 721 eglGetConfigs(EGLDisplay dpy, EGLConfig *configs,
 722               EGLint config_size, EGLint *num_config)
 723 {
 724    _EGLDisplay *disp = _eglLockDisplay(dpy);
 725    const _EGLDriver *drv;
 726    EGLBoolean ret;
 727
 728    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
 729
 730    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
 731
 732    if (!num_config)
 733       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
 734
 735    ret = _eglGetConfigs(drv, disp, configs, config_size, num_config);
 736
 737    RETURN_EGL_EVAL(disp, ret);
 738 }
 739
 740
 741 EGLBoolean EGLAPIENTRY
 742 eglChooseConfig(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs,
 743                 EGLint config_size, EGLint *num_config)
 744 {
 745    _EGLDisplay *disp = _eglLockDisplay(dpy);
 746    const _EGLDriver *drv;
 747    EGLBoolean ret;
 748
 749    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
 750
 751    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
 752
 753    if (!num_config)
 754       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
 755
 756    ret = _eglChooseConfig(drv, disp, attrib_list, configs,
 757                           config_size, num_config);
 758
 759    RETURN_EGL_EVAL(disp, ret);
 760 }
 761
 762
 763 EGLBoolean EGLAPIENTRY
 764 eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,
 765                    EGLint attribute, EGLint *value)
 766 {
 767    _EGLDisplay *disp = _eglLockDisplay(dpy);
 768    _EGLConfig *conf = _eglLookupConfig(config, disp);
 769    const _EGLDriver *drv;
 770    EGLBoolean ret;
 771
 772    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
 773
 774    _EGL_CHECK_CONFIG(disp, conf, EGL_FALSE, drv);
 775
 776    ret = _eglGetConfigAttrib(drv, disp, conf, attribute, value);
 777
 778    RETURN_EGL_EVAL(disp, ret);
 779 }
 780
 781
 782 EGLContext EGLAPIENTRY
 783 eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_list,
 784                  const EGLint *attrib_list)
 785 {
 786    _EGLDisplay *disp = _eglLockDisplay(dpy);
 787    _EGLConfig *conf = _eglLookupConfig(config, disp);
 788    _EGLContext *share = _eglLookupContext(share_list, disp);
 789    const _EGLDriver *drv;
 790    _EGLContext *context;
 791    EGLContext ret;
 792
 793    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_CONTEXT);
 794
 795    _EGL_CHECK_DISPLAY(disp, EGL_NO_CONTEXT, drv);
 796
 797    if (config != EGL_NO_CONFIG_KHR)
 798       _EGL_CHECK_CONFIG(disp, conf, EGL_NO_CONTEXT, drv);
 799    else if (!disp->Extensions.KHR_no_config_context)
 800       RETURN_EGL_ERROR(disp, EGL_BAD_CONFIG, EGL_NO_CONTEXT);
 801
 802    if (!share && share_list != EGL_NO_CONTEXT)
 803       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_NO_CONTEXT);
 804
 805    context = drv->CreateContext(disp, conf, share, attrib_list);
 806    ret = (context) ? _eglLinkContext(context) : EGL_NO_CONTEXT;
 807
 808    RETURN_EGL_EVAL(disp, ret);
 809 }
 810
 811
 812 EGLBoolean EGLAPIENTRY
 813 eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
 814 {
 815    _EGLDisplay *disp = _eglLockDisplay(dpy);
 816    _EGLContext *context = _eglLookupContext(ctx, disp);
 817    const _EGLDriver *drv;
 818    EGLBoolean ret;
 819
 820    _EGL_FUNC_START(disp, EGL_OBJECT_CONTEXT_KHR, context, EGL_FALSE);
 821
 822    _EGL_CHECK_CONTEXT(disp, context, EGL_FALSE, drv);
 823    _eglUnlinkContext(context);
 824    ret = drv->DestroyContext(disp, context);
 825
 826    RETURN_EGL_EVAL(disp, ret);
 827 }
 828
 829
 830 EGLBoolean EGLAPIENTRY
 831 eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read,
 832                EGLContext ctx)
 833 {
 834    _EGLDisplay *disp = _eglLockDisplay(dpy);
 835    _EGLContext *context = _eglLookupContext(ctx, disp);
 836    _EGLSurface *draw_surf = _eglLookupSurface(draw, disp);
 837    _EGLSurface *read_surf = _eglLookupSurface(read, disp);
 838    const _EGLDriver *drv;
 839    EGLBoolean ret;
 840
 841    _EGL_FUNC_START(disp, EGL_OBJECT_CONTEXT_KHR, context, EGL_FALSE);
 842
 843    if (!disp)
 844       RETURN_EGL_ERROR(disp, EGL_BAD_DISPLAY, EGL_FALSE);
 845    drv = disp->Driver;
 846
 847    /* display is allowed to be uninitialized under certain condition */
 848    if (!disp->Initialized) {
 849       if (draw != EGL_NO_SURFACE || read != EGL_NO_SURFACE ||
 850           ctx != EGL_NO_CONTEXT)
 851          RETURN_EGL_ERROR(disp, EGL_BAD_DISPLAY, EGL_FALSE);
 852    }
 853    if (!drv)
 854       RETURN_EGL_SUCCESS(disp, EGL_TRUE);
 855
 856    if (!context && ctx != EGL_NO_CONTEXT)
 857       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_FALSE);
 858    if (!draw_surf || !read_surf) {
 859       /* From the EGL 1.4 (20130211) spec:
 860        *
 861        *    To release the current context without assigning a new one, set ctx
 862        *    to EGL_NO_CONTEXT and set draw and read to EGL_NO_SURFACE.
 863        */
 864       if (!disp->Extensions.KHR_surfaceless_context && ctx != EGL_NO_CONTEXT)
 865          RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
 866
 867       if ((!draw_surf && draw != EGL_NO_SURFACE) ||
 868           (!read_surf && read != EGL_NO_SURFACE))
 869          RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
 870       if (draw_surf || read_surf)
 871          RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_FALSE);
 872    }
 873
 874    /*    If a native window underlying either draw or read is no longer valid,
 875     *    an EGL_BAD_NATIVE_WINDOW error is generated.
 876     */
 877    if (draw_surf && draw_surf->Lost)
 878       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_WINDOW, EGL_FALSE);
 879    if (read_surf && read_surf->Lost)
 880       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_WINDOW, EGL_FALSE);
 881
 882    ret = drv->MakeCurrent(drv, disp, draw_surf, read_surf, context);
 883
 884    RETURN_EGL_EVAL(disp, ret);
 885 }
 886
 887
 888 EGLBoolean EGLAPIENTRY
 889 eglQueryContext(EGLDisplay dpy, EGLContext ctx,
 890                 EGLint attribute, EGLint *value)
 891 {
 892    _EGLDisplay *disp = _eglLockDisplay(dpy);
 893    _EGLContext *context = _eglLookupContext(ctx, disp);
 894    const _EGLDriver *drv;
 895    EGLBoolean ret;
 896
 897    _EGL_FUNC_START(disp, EGL_OBJECT_CONTEXT_KHR, context, EGL_FALSE);
 898
 899    _EGL_CHECK_CONTEXT(disp, context, EGL_FALSE, drv);
 900
 901    ret = _eglQueryContext(drv, disp, context, attribute, value);
 902
 903    RETURN_EGL_EVAL(disp, ret);
 904 }
 905
 906
 907 /* In EGL specs 1.4 and 1.5, at the end of sections 3.5.1 and 3.5.4, it says
 908  * that if native_surface was already used to create a window or pixmap, we
 909  * can't create a new one. This is what this function checks for.
 910  */
 911 static bool
 912 _eglNativeSurfaceAlreadyUsed(_EGLDisplay *disp, void *native_surface)
 913 {
 914    _EGLResource *list;
 915
 916    list = disp->ResourceLists[_EGL_RESOURCE_SURFACE];
 917    while (list) {
 918       _EGLSurface *surf = (_EGLSurface *) list;
 919
 920       list = list->Next;
 921
 922       if (surf->Type == EGL_PBUFFER_BIT)
 923          continue;
 924
 925       if (surf->NativeSurface == native_surface)
 926          return true;
 927    }
 928
 929    return false;
 930 }
 931
 932
 933 static EGLSurface
 934 _eglCreateWindowSurfaceCommon(_EGLDisplay *disp, EGLConfig config,
 935                               void *native_window, const EGLint *attrib_list)
 936 {
 937    _EGLConfig *conf = _eglLookupConfig(config, disp);
 938    const _EGLDriver *drv;
 939    _EGLSurface *surf;
 940    EGLSurface ret;
 941
 942
 943    if (native_window == NULL)
 944       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
 945
 946    if (disp && (disp->Platform == _EGL_PLATFORM_SURFACELESS ||
 947                 disp->Platform == _EGL_PLATFORM_DEVICE)) {
 948       /* From the EGL_MESA_platform_surfaceless spec (v1):
 949        *
 950        *    eglCreatePlatformWindowSurface fails when called with a <display>
 951        *    that belongs to the surfaceless platform. It returns
 952        *    EGL_NO_SURFACE and generates EGL_BAD_NATIVE_WINDOW. The
 953        *    justification for this unconditional failure is that the
 954        *    surfaceless platform has no native windows, and therefore the
 955        *    <native_window> parameter is always invalid.
 956        *
 957        * This check must occur before checking the EGLConfig, which emits
 958        * EGL_BAD_CONFIG.
 959        */
 960       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
 961    }
 962
 963    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
 964
 965    if ((conf->SurfaceType & EGL_WINDOW_BIT) == 0)
 966       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_NO_SURFACE);
 967
 968    if (_eglNativeSurfaceAlreadyUsed(disp, native_window))
 969       RETURN_EGL_ERROR(disp, EGL_BAD_ALLOC, EGL_NO_SURFACE);
 970
 971    surf = drv->CreateWindowSurface(drv, disp, conf, native_window,
 972                                        attrib_list);
 973    ret = (surf) ? _eglLinkSurface(surf) : EGL_NO_SURFACE;
 974
 975    RETURN_EGL_EVAL(disp, ret);
 976 }
 977
 978
 979 EGLSurface EGLAPIENTRY
 980 eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config,
 981                        EGLNativeWindowType window, const EGLint *attrib_list)
 982 {
 983    _EGLDisplay *disp = _eglLockDisplay(dpy);
 984
 985    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
 986    STATIC_ASSERT(sizeof(void*) == sizeof(window));
 987    return _eglCreateWindowSurfaceCommon(disp, config, (void*) window,
 988                                         attrib_list);
 989 }
 990
 991 static void *
 992 _fixupNativeWindow(_EGLDisplay *disp, void *native_window)
 993 {
 994 #ifdef HAVE_X11_PLATFORM
 995    if (disp && disp->Platform == _EGL_PLATFORM_X11 && native_window != NULL) {
 996       /* The `native_window` parameter for the X11 platform differs between
 997        * eglCreateWindowSurface() and eglCreatePlatformPixmapSurfaceEXT(). In
 998        * eglCreateWindowSurface(), the type of `native_window` is an Xlib
 999        * `Window`. In eglCreatePlatformWindowSurfaceEXT(), the type is
1000        * `Window*`.  Convert `Window*` to `Window` because that's what
1001        * dri2_x11_create_window_surface() expects.
1002        */
1003       return (void *)(* (Window*) native_window);
1004    }
1005 #endif
1006    return native_window;
1007 }
1008
1009 static EGLSurface EGLAPIENTRY
1010 eglCreatePlatformWindowSurfaceEXT(EGLDisplay dpy, EGLConfig config,
1011                                   void *native_window,
1012                                   const EGLint *attrib_list)
1013 {
1014    _EGLDisplay *disp = _eglLockDisplay(dpy);
1015
1016    native_window = _fixupNativeWindow(disp, native_window);
1017
1018    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
1019    return _eglCreateWindowSurfaceCommon(disp, config, native_window,
1020                                         attrib_list);
1021 }
1022
1023
1024 EGLSurface EGLAPIENTRY
1025 eglCreatePlatformWindowSurface(EGLDisplay dpy, EGLConfig config,
1026                                void *native_window,
1027                                const EGLAttrib *attrib_list)
1028 {
1029    _EGLDisplay *disp = _eglLockDisplay(dpy);
1030    EGLSurface surface;
1031    EGLint *int_attribs;
1032
1033    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
1034
1035    int_attribs = _eglConvertAttribsToInt(attrib_list);
1036    if (attrib_list && !int_attribs)
1037       RETURN_EGL_ERROR(disp, EGL_BAD_ALLOC, EGL_NO_SURFACE);
1038
1039    native_window = _fixupNativeWindow(disp, native_window);
1040    surface = _eglCreateWindowSurfaceCommon(disp, config, native_window,
1041                                            int_attribs);
1042    free(int_attribs);
1043    return surface;
1044 }
1045
1046 static void *
1047 _fixupNativePixmap(_EGLDisplay *disp, void *native_pixmap)
1048 {
1049 #ifdef HAVE_X11_PLATFORM
1050    /* The `native_pixmap` parameter for the X11 platform differs between
1051     * eglCreatePixmapSurface() and eglCreatePlatformPixmapSurfaceEXT(). In
1052     * eglCreatePixmapSurface(), the type of `native_pixmap` is an Xlib
1053     * `Pixmap`. In eglCreatePlatformPixmapSurfaceEXT(), the type is
1054     * `Pixmap*`.  Convert `Pixmap*` to `Pixmap` because that's what
1055     * dri2_x11_create_pixmap_surface() expects.
1056     */
1057    if (disp && disp->Platform == _EGL_PLATFORM_X11 && native_pixmap != NULL)
1058       return (void *)(* (Pixmap*) native_pixmap);
1059 #endif
1060    return native_pixmap;
1061 }
1062
1063 static EGLSurface
1064 _eglCreatePixmapSurfaceCommon(_EGLDisplay *disp, EGLConfig config,
1065                               void *native_pixmap, const EGLint *attrib_list)
1066 {
1067    _EGLConfig *conf = _eglLookupConfig(config, disp);
1068    const _EGLDriver *drv;
1069    _EGLSurface *surf;
1070    EGLSurface ret;
1071
1072    if (disp && (disp->Platform == _EGL_PLATFORM_SURFACELESS ||
1073                 disp->Platform == _EGL_PLATFORM_DEVICE)) {
1074       /* From the EGL_MESA_platform_surfaceless spec (v1):
1075        *
1076        *   [Like eglCreatePlatformWindowSurface,] eglCreatePlatformPixmapSurface
1077        *   also fails when called with a <display> that belongs to the
1078        *   surfaceless platform.  It returns EGL_NO_SURFACE and generates
1079        *   EGL_BAD_NATIVE_PIXMAP.
1080        *
1081        * This check must occur before checking the EGLConfig, which emits
1082        * EGL_BAD_CONFIG.
1083        */
1084       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE);
1085    }
1086
1087    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
1088
1089    if ((conf->SurfaceType & EGL_PIXMAP_BIT) == 0)
1090       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_NO_SURFACE);
1091
1092    if (native_pixmap == NULL)
1093       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE);
1094
1095    if (_eglNativeSurfaceAlreadyUsed(disp, native_pixmap))
1096       RETURN_EGL_ERROR(disp, EGL_BAD_ALLOC, EGL_NO_SURFACE);
1097
1098    surf = drv->CreatePixmapSurface(drv, disp, conf, native_pixmap,
1099                                        attrib_list);
1100    ret = (surf) ? _eglLinkSurface(surf) : EGL_NO_SURFACE;
1101
1102    RETURN_EGL_EVAL(disp, ret);
1103 }
1104
1105
1106 EGLSurface EGLAPIENTRY
1107 eglCreatePixmapSurface(EGLDisplay dpy, EGLConfig config,
1108                        EGLNativePixmapType pixmap, const EGLint *attrib_list)
1109 {
1110    _EGLDisplay *disp = _eglLockDisplay(dpy);
1111
1112    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
1113    STATIC_ASSERT(sizeof(void*) == sizeof(pixmap));
1114    return _eglCreatePixmapSurfaceCommon(disp, config, (void*) pixmap,
1115                                         attrib_list);
1116 }
1117
1118 static EGLSurface EGLAPIENTRY
1119 eglCreatePlatformPixmapSurfaceEXT(EGLDisplay dpy, EGLConfig config,
1120                                   void *native_pixmap,
1121                                   const EGLint *attrib_list)
1122 {
1123    _EGLDisplay *disp = _eglLockDisplay(dpy);
1124
1125    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
1126    native_pixmap = _fixupNativePixmap(disp, native_pixmap);
1127    return _eglCreatePixmapSurfaceCommon(disp, config, native_pixmap,
1128                                         attrib_list);
1129 }
1130
1131
1132 EGLSurface EGLAPIENTRY
1133 eglCreatePlatformPixmapSurface(EGLDisplay dpy, EGLConfig config,
1134                                void *native_pixmap,
1135                                const EGLAttrib *attrib_list)
1136 {
1137    _EGLDisplay *disp = _eglLockDisplay(dpy);
1138    EGLSurface surface;
1139    EGLint *int_attribs;
1140
1141    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
1142
1143    int_attribs = _eglConvertAttribsToInt(attrib_list);
1144    if (attrib_list && !int_attribs)
1145       RETURN_EGL_ERROR(disp, EGL_BAD_ALLOC, EGL_NO_SURFACE);
1146
1147    native_pixmap = _fixupNativePixmap(disp, native_pixmap);
1148    surface = _eglCreatePixmapSurfaceCommon(disp, config, native_pixmap,
1149                                            int_attribs);
1150    free(int_attribs);
1151    return surface;
1152 }
1153
1154
1155 EGLSurface EGLAPIENTRY
1156 eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config,
1157                         const EGLint *attrib_list)
1158 {
1159    _EGLDisplay *disp = _eglLockDisplay(dpy);
1160    _EGLConfig *conf = _eglLookupConfig(config, disp);
1161    const _EGLDriver *drv;
1162    _EGLSurface *surf;
1163    EGLSurface ret;
1164
1165    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
1166    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
1167
1168    if ((conf->SurfaceType & EGL_PBUFFER_BIT) == 0)
1169       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_NO_SURFACE);
1170
1171    surf = drv->CreatePbufferSurface(drv, disp, conf, attrib_list);
1172    ret = (surf) ? _eglLinkSurface(surf) : EGL_NO_SURFACE;
1173
1174    RETURN_EGL_EVAL(disp, ret);
1175 }
1176
1177
1178 EGLBoolean EGLAPIENTRY
1179 eglDestroySurface(EGLDisplay dpy, EGLSurface surface)
1180 {
1181    _EGLDisplay *disp = _eglLockDisplay(dpy);
1182    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1183    const _EGLDriver *drv;
1184    EGLBoolean ret;
1185
1186    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1187    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1188    _eglUnlinkSurface(surf);
1189    ret = drv->DestroySurface(drv, disp, surf);
1190
1191    RETURN_EGL_EVAL(disp, ret);
1192 }
1193
1194 EGLBoolean EGLAPIENTRY
1195 eglQuerySurface(EGLDisplay dpy, EGLSurface surface,
1196                 EGLint attribute, EGLint *value)
1197 {
1198    _EGLDisplay *disp = _eglLockDisplay(dpy);
1199    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1200    const _EGLDriver *drv;
1201    EGLBoolean ret;
1202
1203    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1204    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1205
1206    if (drv->QuerySurface)
1207       ret = drv->QuerySurface(drv, disp, surf, attribute, value);
1208    else
1209       ret = _eglQuerySurface(drv, disp, surf, attribute, value);
1210
1211    RETURN_EGL_EVAL(disp, ret);
1212 }
1213
1214 EGLBoolean EGLAPIENTRY
1215 eglSurfaceAttrib(EGLDisplay dpy, EGLSurface surface,
1216                  EGLint attribute, EGLint value)
1217 {
1218    _EGLDisplay *disp = _eglLockDisplay(dpy);
1219    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1220    const _EGLDriver *drv;
1221    EGLBoolean ret;
1222
1223    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1224    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1225
1226    ret = _eglSurfaceAttrib(drv, disp, surf, attribute, value);
1227
1228    RETURN_EGL_EVAL(disp, ret);
1229 }
1230
1231
1232 EGLBoolean EGLAPIENTRY
1233 eglBindTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer)
1234 {
1235    _EGLDisplay *disp = _eglLockDisplay(dpy);
1236    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1237    const _EGLDriver *drv;
1238    EGLBoolean ret;
1239
1240    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1241    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1242    ret = drv->BindTexImage(drv, disp, surf, buffer);
1243
1244    RETURN_EGL_EVAL(disp, ret);
1245 }
1246
1247
1248 EGLBoolean EGLAPIENTRY
1249 eglReleaseTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer)
1250 {
1251    _EGLDisplay *disp = _eglLockDisplay(dpy);
1252    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1253    const _EGLDriver *drv;
1254    EGLBoolean ret;
1255
1256    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1257    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1258    ret = drv->ReleaseTexImage(drv, disp, surf, buffer);
1259
1260    RETURN_EGL_EVAL(disp, ret);
1261 }
1262
1263
1264 EGLBoolean EGLAPIENTRY
1265 eglSwapInterval(EGLDisplay dpy, EGLint interval)
1266 {
1267    _EGLDisplay *disp = _eglLockDisplay(dpy);
1268    _EGLContext *ctx = _eglGetCurrentContext();
1269    _EGLSurface *surf = ctx ? ctx->DrawSurface : NULL;
1270    const _EGLDriver *drv;
1271    EGLBoolean ret;
1272
1273    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1274    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
1275
1276    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
1277        ctx->Resource.Display != disp)
1278       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_FALSE);
1279
1280    if (_eglGetSurfaceHandle(surf) == EGL_NO_SURFACE)
1281       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
1282
1283    if (surf->Type != EGL_WINDOW_BIT)
1284       RETURN_EGL_EVAL(disp, EGL_TRUE);
1285
1286    interval = CLAMP(interval,
1287                     surf->Config->MinSwapInterval,
1288                     surf->Config->MaxSwapInterval);
1289
1290    if (surf->SwapInterval != interval) {
1291       if (drv->SwapInterval)
1292          ret = drv->SwapInterval(drv, disp, surf, interval);
1293       else
1294          ret = _eglSwapInterval(drv, disp, surf, interval);
1295    }
1296    else {
1297       ret = EGL_TRUE;
1298    }
1299
1300    if (ret)
1301       surf->SwapInterval = interval;
1302
1303    RETURN_EGL_EVAL(disp, ret);
1304 }
1305
1306
1307 EGLBoolean EGLAPIENTRY
1308 eglSwapBuffers(EGLDisplay dpy, EGLSurface surface)
1309 {
1310    _EGLContext *ctx = _eglGetCurrentContext();
1311    _EGLDisplay *disp = _eglLockDisplay(dpy);
1312    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1313    const _EGLDriver *drv;
1314    EGLBoolean ret;
1315
1316    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1317    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1318
1319    /* surface must be bound to current context in EGL 1.4 */
1320    #ifndef _EGL_BUILT_IN_DRIVER_HAIKU
1321    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
1322        surf != ctx->DrawSurface)
1323       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
1324    #endif
1325
1326    if (surf->Type != EGL_WINDOW_BIT)
1327       RETURN_EGL_EVAL(disp, EGL_TRUE);
1328
1329    /* From the EGL 1.5 spec:
1330     *
1331     *    If eglSwapBuffers is called and the native window associated with
1332     *    surface is no longer valid, an EGL_BAD_NATIVE_WINDOW error is
1333     *    generated.
1334     */
1335    if (surf->Lost)
1336       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_WINDOW, EGL_FALSE);
1337
1338    ret = drv->SwapBuffers(drv, disp, surf);
1339
1340    /* EGL_KHR_partial_update
1341     * Frame boundary successfully reached,
1342     * reset damage region and reset BufferAgeRead
1343     */
1344    if (ret) {
1345       surf->SetDamageRegionCalled = EGL_FALSE;
1346       surf->BufferAgeRead = EGL_FALSE;
1347    }
1348
1349    RETURN_EGL_EVAL(disp, ret);
1350 }
1351
1352
1353 static EGLBoolean
1354 _eglSwapBuffersWithDamageCommon(_EGLDisplay *disp, _EGLSurface *surf,
1355                                 const EGLint *rects, EGLint n_rects)
1356 {
1357    _EGLContext *ctx = _eglGetCurrentContext();
1358    const _EGLDriver *drv;
1359    EGLBoolean ret;
1360
1361    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1362
1363    /* surface must be bound to current context in EGL 1.4 */
1364    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
1365        surf != ctx->DrawSurface)
1366       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
1367
1368    if (surf->Type != EGL_WINDOW_BIT)
1369       RETURN_EGL_EVAL(disp, EGL_TRUE);
1370
1371    if ((n_rects > 0 && rects == NULL) || n_rects < 0)
1372       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
1373
1374    ret = drv->SwapBuffersWithDamageEXT(drv, disp, surf, rects, n_rects);
1375
1376    /* EGL_KHR_partial_update
1377     * Frame boundary successfully reached,
1378     * reset damage region and reset BufferAgeRead
1379     */
1380    if (ret) {
1381       surf->SetDamageRegionCalled = EGL_FALSE;
1382       surf->BufferAgeRead = EGL_FALSE;
1383    }
1384
1385    RETURN_EGL_EVAL(disp, ret);
1386 }
1387
1388 static EGLBoolean EGLAPIENTRY
1389 eglSwapBuffersWithDamageEXT(EGLDisplay dpy, EGLSurface surface,
1390                             const EGLint *rects, EGLint n_rects)
1391 {
1392    _EGLDisplay *disp = _eglLockDisplay(dpy);
1393    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1394    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1395    return _eglSwapBuffersWithDamageCommon(disp, surf, rects, n_rects);
1396 }
1397
1398 static EGLBoolean EGLAPIENTRY
1399 eglSwapBuffersWithDamageKHR(EGLDisplay dpy, EGLSurface surface,
1400                             const EGLint *rects, EGLint n_rects)
1401 {
1402    _EGLDisplay *disp = _eglLockDisplay(dpy);
1403    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1404    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1405    return _eglSwapBuffersWithDamageCommon(disp, surf, rects, n_rects);
1406 }
1407
1408 /**
1409  * Clamp the rectangles so that they lie within the surface.
1410  */
1411
1412 static void
1413 _eglSetDamageRegionKHRClampRects(_EGLDisplay* disp, _EGLSurface* surf,
1414                                  EGLint *rects, EGLint n_rects)
1415 {
1416    EGLint i;
1417    EGLint surf_height = surf->Height;
1418    EGLint surf_width = surf->Width;
1419
1420    for (i = 0; i < (4 * n_rects); i += 4) {
1421       EGLint x1, y1, x2, y2;
1422       x1 = rects[i];
1423       y1 = rects[i + 1];
1424       x2 = rects[i + 2] + x1;
1425       y2 = rects[i + 3] + y1;
1426
1427       rects[i] = CLAMP(x1, 0, surf_width);
1428       rects[i + 1] = CLAMP(y1, 0, surf_height);
1429       rects[i + 2] = CLAMP(x2, 0, surf_width) - rects[i];
1430       rects[i + 3] = CLAMP(y2, 0, surf_height) - rects[i + 1];
1431    }
1432 }
1433
1434 static EGLBoolean EGLAPIENTRY
1435 eglSetDamageRegionKHR(EGLDisplay dpy, EGLSurface surface,
1436                       EGLint *rects, EGLint n_rects)
1437 {
1438    _EGLDisplay *disp = _eglLockDisplay(dpy);
1439    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1440    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1441    _EGLContext *ctx = _eglGetCurrentContext();
1442    const _EGLDriver *drv;
1443    EGLBoolean ret;
1444    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1445
1446    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
1447        surf->Type != EGL_WINDOW_BIT ||
1448        ctx->DrawSurface != surf ||
1449        surf->SwapBehavior != EGL_BUFFER_DESTROYED)
1450       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_FALSE);
1451
1452    /* If the damage region is already set or
1453     * buffer age is not queried between
1454     * frame boundaries, throw bad access error
1455     */
1456
1457    if (surf->SetDamageRegionCalled || !surf->BufferAgeRead)
1458       RETURN_EGL_ERROR(disp, EGL_BAD_ACCESS, EGL_FALSE);
1459
1460    _eglSetDamageRegionKHRClampRects(disp, surf, rects, n_rects);
1461    ret = drv->SetDamageRegion(drv, disp, surf, rects, n_rects);
1462
1463    if (ret)
1464       surf->SetDamageRegionCalled = EGL_TRUE;
1465
1466    RETURN_EGL_EVAL(disp, ret);
1467 }
1468
1469 EGLBoolean EGLAPIENTRY
1470 eglCopyBuffers(EGLDisplay dpy, EGLSurface surface, EGLNativePixmapType target)
1471 {
1472    _EGLDisplay *disp = _eglLockDisplay(dpy);
1473    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1474    const _EGLDriver *drv;
1475    EGLBoolean ret;
1476    void *native_pixmap_ptr;
1477
1478    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1479    STATIC_ASSERT(sizeof(void*) == sizeof(target));
1480    native_pixmap_ptr = (void*) target;
1481
1482    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1483    ret = drv->CopyBuffers(drv, disp, surf, native_pixmap_ptr);
1484
1485    RETURN_EGL_EVAL(disp, ret);
1486 }
1487
1488
1489 static EGLBoolean
1490 _eglWaitClientCommon(void)
1491 {
1492    _EGLContext *ctx = _eglGetCurrentContext();
1493    _EGLDisplay *disp;
1494    const _EGLDriver *drv;
1495    EGLBoolean ret;
1496
1497    if (!ctx)
1498       RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
1499
1500    disp = ctx->Resource.Display;
1501    mtx_lock(&disp->Mutex);
1502
1503    /* let bad current context imply bad current surface */
1504    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
1505        _eglGetSurfaceHandle(ctx->DrawSurface) == EGL_NO_SURFACE)
1506       RETURN_EGL_ERROR(disp, EGL_BAD_CURRENT_SURFACE, EGL_FALSE);
1507
1508    /* a valid current context implies an initialized current display */
1509    assert(disp->Initialized);
1510    drv = disp->Driver;
1511    ret = drv->WaitClient(drv, disp, ctx);
1512
1513    RETURN_EGL_EVAL(disp, ret);
1514 }
1515
1516 EGLBoolean EGLAPIENTRY
1517 eglWaitClient(void)
1518 {
1519    _EGL_FUNC_START(NULL, EGL_OBJECT_CONTEXT_KHR, _eglGetCurrentContext(), EGL_FALSE);
1520    return _eglWaitClientCommon();
1521 }
1522
1523 EGLBoolean EGLAPIENTRY
1524 eglWaitGL(void)
1525 {
1526    /* Since we only support OpenGL and GLES, eglWaitGL is equivalent to eglWaitClient. */
1527    _EGL_FUNC_START(NULL, EGL_OBJECT_CONTEXT_KHR, _eglGetCurrentContext(), EGL_FALSE);
1528    return _eglWaitClientCommon();
1529 }
1530
1531
1532 EGLBoolean EGLAPIENTRY
1533 eglWaitNative(EGLint engine)
1534 {
1535    _EGLContext *ctx = _eglGetCurrentContext();
1536    _EGLDisplay *disp;
1537    const _EGLDriver *drv;
1538    EGLBoolean ret;
1539
1540    if (!ctx)
1541       RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
1542
1543    _EGL_FUNC_START(NULL, EGL_OBJECT_THREAD_KHR, NULL, EGL_FALSE);
1544
1545    disp = ctx->Resource.Display;
1546    mtx_lock(&disp->Mutex);
1547
1548    /* let bad current context imply bad current surface */
1549    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
1550        _eglGetSurfaceHandle(ctx->DrawSurface) == EGL_NO_SURFACE)
1551       RETURN_EGL_ERROR(disp, EGL_BAD_CURRENT_SURFACE, EGL_FALSE);
1552
1553    /* a valid current context implies an initialized current display */
1554    assert(disp->Initialized);
1555    drv = disp->Driver;
1556    ret = drv->WaitNative(drv, disp, engine);
1557
1558    RETURN_EGL_EVAL(disp, ret);
1559 }
1560
1561
1562 EGLDisplay EGLAPIENTRY
1563 eglGetCurrentDisplay(void)
1564 {
1565    _EGLContext *ctx = _eglGetCurrentContext();
1566    EGLDisplay ret;
1567
1568    ret = (ctx) ? _eglGetDisplayHandle(ctx->Resource.Display) : EGL_NO_DISPLAY;
1569
1570    RETURN_EGL_SUCCESS(NULL, ret);
1571 }
1572
1573
1574 EGLContext EGLAPIENTRY
1575 eglGetCurrentContext(void)
1576 {
1577    _EGLContext *ctx = _eglGetCurrentContext();
1578    EGLContext ret;
1579
1580    ret = _eglGetContextHandle(ctx);
1581
1582    RETURN_EGL_SUCCESS(NULL, ret);
1583 }
1584
1585
1586 EGLSurface EGLAPIENTRY
1587 eglGetCurrentSurface(EGLint readdraw)
1588 {
1589    _EGLContext *ctx = _eglGetCurrentContext();
1590    EGLint err = EGL_SUCCESS;
1591    _EGLSurface *surf;
1592    EGLSurface ret;
1593
1594    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_NO_SURFACE);
1595
1596    if (!ctx)
1597       RETURN_EGL_SUCCESS(NULL, EGL_NO_SURFACE);
1598
1599    switch (readdraw) {
1600    case EGL_DRAW:
1601       surf = ctx->DrawSurface;
1602       break;
1603    case EGL_READ:
1604       surf = ctx->ReadSurface;
1605       break;
1606    default:
1607       surf = NULL;
1608       err = EGL_BAD_PARAMETER;
1609       break;
1610    }
1611
1612    ret = _eglGetSurfaceHandle(surf);
1613
1614    RETURN_EGL_ERROR(NULL, err, ret);
1615 }
1616
1617
1618 EGLint EGLAPIENTRY
1619 eglGetError(void)
1620 {
1621    _EGLThreadInfo *t = _eglGetCurrentThread();
1622    EGLint e = t->LastError;
1623    if (!_eglIsCurrentThreadDummy())
1624       t->LastError = EGL_SUCCESS;
1625    return e;
1626 }
1627
1628
1629 /**
1630  ** EGL 1.2
1631  **/
1632
1633 /**
1634  * Specify the client API to use for subsequent calls including:
1635  *  eglCreateContext()
1636  *  eglGetCurrentContext()
1637  *  eglGetCurrentDisplay()
1638  *  eglGetCurrentSurface()
1639  *  eglMakeCurrent(when the ctx parameter is EGL NO CONTEXT)
1640  *  eglWaitClient()
1641  *  eglWaitNative()
1642  * See section 3.7 "Rendering Context" in the EGL specification for details.
1643  */
1644 EGLBoolean EGLAPIENTRY
1645 eglBindAPI(EGLenum api)
1646 {
1647    _EGLThreadInfo *t;
1648
1649    _EGL_FUNC_START(NULL, EGL_OBJECT_THREAD_KHR, NULL, EGL_FALSE);
1650
1651    t = _eglGetCurrentThread();
1652    if (_eglIsCurrentThreadDummy())
1653       RETURN_EGL_ERROR(NULL, EGL_BAD_ALLOC, EGL_FALSE);
1654
1655    if (!_eglIsApiValid(api))
1656       RETURN_EGL_ERROR(NULL, EGL_BAD_PARAMETER, EGL_FALSE);
1657
1658    t->CurrentAPI = api;
1659
1660    RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
1661 }
1662
1663
1664 /**
1665  * Return the last value set with eglBindAPI().
1666  */
1667 EGLenum EGLAPIENTRY
1668 eglQueryAPI(void)
1669 {
1670    _EGLThreadInfo *t = _eglGetCurrentThread();
1671    EGLenum ret;
1672
1673    /* returns one of EGL_OPENGL_API, EGL_OPENGL_ES_API or EGL_OPENVG_API */
1674    ret = t->CurrentAPI;
1675
1676    RETURN_EGL_SUCCESS(NULL, ret);
1677 }
1678
1679
1680 EGLSurface EGLAPIENTRY
1681 eglCreatePbufferFromClientBuffer(EGLDisplay dpy, EGLenum buftype,
1682                                  EGLClientBuffer buffer, EGLConfig config,
1683                                  const EGLint *attrib_list)
1684 {
1685    _EGLDisplay *disp = _eglLockDisplay(dpy);
1686    _EGLConfig *conf = _eglLookupConfig(config, disp);
1687    const _EGLDriver *drv;
1688
1689    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
1690
1691    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
1692
1693    /* OpenVG is not supported */
1694    RETURN_EGL_ERROR(disp, EGL_BAD_ALLOC, EGL_NO_SURFACE);
1695 }
1696
1697
1698 EGLBoolean EGLAPIENTRY
1699 eglReleaseThread(void)
1700 {
1701    /* unbind current contexts */
1702    if (!_eglIsCurrentThreadDummy()) {
1703       _EGLThreadInfo *t = _eglGetCurrentThread();
1704       _EGLContext *ctx = t->CurrentContext;
1705
1706       _EGL_FUNC_START(NULL, EGL_OBJECT_THREAD_KHR, NULL, EGL_FALSE);
1707
1708       if (ctx) {
1709          _EGLDisplay *disp = ctx->Resource.Display;
1710          const _EGLDriver *drv;
1711
1712          mtx_lock(&disp->Mutex);
1713          drv = disp->Driver;
1714          (void) drv->MakeCurrent(drv, disp, NULL, NULL, NULL);
1715          mtx_unlock(&disp->Mutex);
1716       }
1717    }
1718
1719    _eglDestroyCurrentThread();
1720
1721    RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
1722 }
1723
1724
1725 static EGLImage
1726 _eglCreateImageCommon(_EGLDisplay *disp, EGLContext ctx, EGLenum target,
1727                       EGLClientBuffer buffer, const EGLint *attr_list)
1728 {
1729    _EGLContext *context = _eglLookupContext(ctx, disp);
1730    const _EGLDriver *drv;
1731    _EGLImage *img;
1732    EGLImage ret;
1733
1734    _EGL_CHECK_DISPLAY(disp, EGL_NO_IMAGE_KHR, drv);
1735    if (!disp->Extensions.KHR_image_base)
1736       RETURN_EGL_EVAL(disp, EGL_NO_IMAGE_KHR);
1737    if (!context && ctx != EGL_NO_CONTEXT)
1738       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR);
1739    /* "If <target> is EGL_LINUX_DMA_BUF_EXT, <dpy> must be a valid display,
1740     *  <ctx> must be EGL_NO_CONTEXT..."
1741     */
1742    if (ctx != EGL_NO_CONTEXT && target == EGL_LINUX_DMA_BUF_EXT)
1743       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
1744
1745    img = drv->CreateImageKHR(drv, disp, context, target,
1746                                  buffer, attr_list);
1747    ret = (img) ? _eglLinkImage(img) : EGL_NO_IMAGE_KHR;
1748
1749    RETURN_EGL_EVAL(disp, ret);
1750 }
1751
1752 static EGLImage EGLAPIENTRY
1753 eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
1754                   EGLClientBuffer buffer, const EGLint *attr_list)
1755 {
1756    _EGLDisplay *disp = _eglLockDisplay(dpy);
1757    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_IMAGE_KHR);
1758    return _eglCreateImageCommon(disp, ctx, target, buffer, attr_list);
1759 }
1760
1761
1762 EGLImage EGLAPIENTRY
1763 eglCreateImage(EGLDisplay dpy, EGLContext ctx, EGLenum target,
1764                EGLClientBuffer buffer, const EGLAttrib *attr_list)
1765 {
1766    _EGLDisplay *disp = _eglLockDisplay(dpy);
1767    EGLImage image;
1768    EGLint *int_attribs;
1769
1770    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_IMAGE_KHR);
1771
1772    int_attribs = _eglConvertAttribsToInt(attr_list);
1773    if (attr_list && !int_attribs)
1774       RETURN_EGL_ERROR(disp, EGL_BAD_ALLOC, EGL_NO_IMAGE);
1775
1776    image = _eglCreateImageCommon(disp, ctx, target, buffer, int_attribs);
1777    free(int_attribs);
1778    return image;
1779 }
1780
1781
1782 static EGLBoolean
1783 _eglDestroyImageCommon(_EGLDisplay *disp, _EGLImage *img)
1784 {
1785    const _EGLDriver *drv;
1786    EGLBoolean ret;
1787
1788    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
1789    if (!disp->Extensions.KHR_image_base)
1790       RETURN_EGL_EVAL(disp, EGL_FALSE);
1791    if (!img)
1792       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
1793
1794    _eglUnlinkImage(img);
1795    ret = drv->DestroyImageKHR(drv, disp, img);
1796
1797    RETURN_EGL_EVAL(disp, ret);
1798 }
1799
1800 EGLBoolean EGLAPIENTRY
1801 eglDestroyImage(EGLDisplay dpy, EGLImage image)
1802 {
1803    _EGLDisplay *disp = _eglLockDisplay(dpy);
1804    _EGLImage *img = _eglLookupImage(image, disp);
1805    _EGL_FUNC_START(disp, EGL_OBJECT_IMAGE_KHR, img, EGL_FALSE);
1806    return _eglDestroyImageCommon(disp, img);
1807 }
1808
1809 static EGLBoolean EGLAPIENTRY
1810 eglDestroyImageKHR(EGLDisplay dpy, EGLImage image)
1811 {
1812    _EGLDisplay *disp = _eglLockDisplay(dpy);
1813    _EGLImage *img = _eglLookupImage(image, disp);
1814    _EGL_FUNC_START(disp, EGL_OBJECT_IMAGE_KHR, img, EGL_FALSE);
1815    return _eglDestroyImageCommon(disp, img);
1816 }
1817
1818
1819 static EGLSync
1820 _eglCreateSync(_EGLDisplay *disp, EGLenum type, const EGLAttrib *attrib_list,
1821                EGLBoolean orig_is_EGLAttrib,
1822                EGLenum invalid_type_error)
1823 {
1824    _EGLContext *ctx = _eglGetCurrentContext();
1825    const _EGLDriver *drv;
1826    _EGLSync *sync;
1827    EGLSync ret;
1828
1829    _EGL_CHECK_DISPLAY(disp, EGL_NO_SYNC_KHR, drv);
1830
1831    if (!disp->Extensions.KHR_cl_event2 && orig_is_EGLAttrib) {
1832       /* There exist two EGLAttrib variants of eglCreateSync*:
1833        * eglCreateSync64KHR which requires EGL_KHR_cl_event2, and eglCreateSync
1834        * which requires EGL 1.5. Here we use the presence of EGL_KHR_cl_event2
1835        * support as a proxy for EGL 1.5 support, even though that's not
1836        * entirely correct (though _eglComputeVersion does the same).
1837        *
1838        * The EGL spec provides no guidance on how to handle unsupported
1839        * functions. EGL_BAD_MATCH seems reasonable.
1840        */
1841       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_NO_SYNC_KHR);
1842    }
1843
1844    /* If type is EGL_SYNC_FENCE and no context is current for the bound API
1845     * (i.e., eglGetCurrentContext returns EGL_NO_CONTEXT ), an EGL_BAD_MATCH
1846     * error is generated.
1847     */
1848    if (!ctx &&
1849        (type == EGL_SYNC_FENCE_KHR || type == EGL_SYNC_NATIVE_FENCE_ANDROID))
1850       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_NO_SYNC_KHR);
1851
1852    /* return an error if the client API doesn't support GL_[OES|MESA]_EGL_sync. */
1853    if (ctx && (ctx->Resource.Display != disp ||
1854                (ctx->ClientAPI != EGL_OPENGL_ES_API &&
1855                 ctx->ClientAPI != EGL_OPENGL_API)))
1856       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_NO_SYNC_KHR);
1857
1858    switch (type) {
1859    case EGL_SYNC_FENCE_KHR:
1860       if (!disp->Extensions.KHR_fence_sync)
1861          RETURN_EGL_ERROR(disp, invalid_type_error, EGL_NO_SYNC_KHR);
1862       break;
1863    case EGL_SYNC_REUSABLE_KHR:
1864       if (!disp->Extensions.KHR_reusable_sync)
1865          RETURN_EGL_ERROR(disp, invalid_type_error, EGL_NO_SYNC_KHR);
1866       break;
1867    case EGL_SYNC_CL_EVENT_KHR:
1868       if (!disp->Extensions.KHR_cl_event2)
1869          RETURN_EGL_ERROR(disp, invalid_type_error, EGL_NO_SYNC_KHR);
1870       break;
1871    case EGL_SYNC_NATIVE_FENCE_ANDROID:
1872       if (!disp->Extensions.ANDROID_native_fence_sync)
1873          RETURN_EGL_ERROR(disp, invalid_type_error, EGL_NO_SYNC_KHR);
1874       break;
1875    default:
1876       RETURN_EGL_ERROR(disp, invalid_type_error, EGL_NO_SYNC_KHR);
1877    }
1878
1879    sync = drv->CreateSyncKHR(drv, disp, type, attrib_list);
1880    ret = (sync) ? _eglLinkSync(sync) : EGL_NO_SYNC_KHR;
1881
1882    RETURN_EGL_EVAL(disp, ret);
1883 }
1884
1885
1886 static EGLSync EGLAPIENTRY
1887 eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *int_list)
1888 {
1889    _EGLDisplay *disp = _eglLockDisplay(dpy);
1890    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
1891
1892    EGLSync sync;
1893    EGLAttrib *attrib_list;
1894    EGLint err;
1895
1896    if (sizeof(int_list[0]) == sizeof(attrib_list[0])) {
1897       attrib_list = (EGLAttrib *) int_list;
1898    } else {
1899       err = _eglConvertIntsToAttribs(int_list, &attrib_list);
1900       if (err != EGL_SUCCESS)
1901          RETURN_EGL_ERROR(disp, err, EGL_NO_SYNC);
1902    }
1903
1904    sync = _eglCreateSync(disp, type, attrib_list, EGL_FALSE,
1905                          EGL_BAD_ATTRIBUTE);
1906
1907    if (sizeof(int_list[0]) != sizeof(attrib_list[0]))
1908       free(attrib_list);
1909
1910    /* Don't double-unlock the display. _eglCreateSync already unlocked it. */
1911    return sync;
1912 }
1913
1914
1915 static EGLSync EGLAPIENTRY
1916 eglCreateSync64KHR(EGLDisplay dpy, EGLenum type, const EGLAttrib *attrib_list)
1917 {
1918    _EGLDisplay *disp = _eglLockDisplay(dpy);
1919    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
1920    return _eglCreateSync(disp, type, attrib_list, EGL_TRUE,
1921                          EGL_BAD_ATTRIBUTE);
1922 }
1923
1924
1925 EGLSync EGLAPIENTRY
1926 eglCreateSync(EGLDisplay dpy, EGLenum type, const EGLAttrib *attrib_list)
1927 {
1928    _EGLDisplay *disp = _eglLockDisplay(dpy);
1929    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
1930    return _eglCreateSync(disp, type, attrib_list, EGL_TRUE,
1931                          EGL_BAD_PARAMETER);
1932 }
1933
1934
1935 static EGLBoolean
1936 _eglDestroySync(_EGLDisplay *disp, _EGLSync *s)
1937 {
1938    const _EGLDriver *drv;
1939    EGLBoolean ret;
1940
1941    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
1942    assert(disp->Extensions.KHR_reusable_sync ||
1943           disp->Extensions.KHR_fence_sync ||
1944           disp->Extensions.ANDROID_native_fence_sync);
1945
1946    _eglUnlinkSync(s);
1947    ret = drv->DestroySyncKHR(drv, disp, s);
1948
1949    RETURN_EGL_EVAL(disp, ret);
1950 }
1951
1952 EGLBoolean EGLAPIENTRY
1953 eglDestroySync(EGLDisplay dpy, EGLSync sync)
1954 {
1955    _EGLDisplay *disp = _eglLockDisplay(dpy);
1956    _EGLSync *s = _eglLookupSync(sync, disp);
1957    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
1958    return _eglDestroySync(disp, s);
1959 }
1960
1961 static EGLBoolean EGLAPIENTRY
1962 eglDestroySyncKHR(EGLDisplay dpy, EGLSync sync)
1963 {
1964    _EGLDisplay *disp = _eglLockDisplay(dpy);
1965    _EGLSync *s = _eglLookupSync(sync, disp);
1966    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
1967    return _eglDestroySync(disp, s);
1968 }
1969
1970
1971 static EGLint
1972 _eglClientWaitSyncCommon(_EGLDisplay *disp, EGLDisplay dpy,
1973                          _EGLSync *s, EGLint flags, EGLTime timeout)
1974 {
1975    const _EGLDriver *drv;
1976    EGLint ret;
1977
1978    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
1979    assert(disp->Extensions.KHR_reusable_sync ||
1980           disp->Extensions.KHR_fence_sync ||
1981           disp->Extensions.ANDROID_native_fence_sync);
1982
1983    if (s->SyncStatus == EGL_SIGNALED_KHR)
1984       RETURN_EGL_EVAL(disp, EGL_CONDITION_SATISFIED_KHR);
1985
1986    /* if sync type is EGL_SYNC_REUSABLE_KHR, dpy should be
1987     * unlocked here to allow other threads also to be able to
1988     * go into waiting state.
1989     */
1990
1991    if (s->Type == EGL_SYNC_REUSABLE_KHR)
1992       _eglUnlockDisplay(dpy);
1993
1994    ret = drv->ClientWaitSyncKHR(drv, disp, s, flags, timeout);
1995
1996    /*
1997     * 'disp' is already unlocked for reusable sync type,
1998     * so passing 'NULL' to bypass unlocking display.
1999     */
2000    if (s->Type == EGL_SYNC_REUSABLE_KHR)
2001       RETURN_EGL_EVAL(NULL, ret);
2002    else
2003       RETURN_EGL_EVAL(disp, ret);
2004 }
2005
2006 EGLint EGLAPIENTRY
2007 eglClientWaitSync(EGLDisplay dpy, EGLSync sync,
2008                   EGLint flags, EGLTime timeout)
2009 {
2010    _EGLDisplay *disp = _eglLockDisplay(dpy);
2011    _EGLSync *s = _eglLookupSync(sync, disp);
2012    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2013    return _eglClientWaitSyncCommon(disp, dpy, s, flags, timeout);
2014 }
2015
2016 static EGLint EGLAPIENTRY
2017 eglClientWaitSyncKHR(EGLDisplay dpy, EGLSync sync,
2018                      EGLint flags, EGLTime timeout)
2019 {
2020    _EGLDisplay *disp = _eglLockDisplay(dpy);
2021    _EGLSync *s = _eglLookupSync(sync, disp);
2022    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2023    return _eglClientWaitSyncCommon(disp, dpy, s, flags, timeout);
2024 }
2025
2026
2027 static EGLint
2028 _eglWaitSyncCommon(_EGLDisplay *disp, _EGLSync *s, EGLint flags)
2029 {
2030    _EGLContext *ctx = _eglGetCurrentContext();
2031    const _EGLDriver *drv;
2032    EGLint ret;
2033
2034    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
2035    assert(disp->Extensions.KHR_wait_sync);
2036
2037    /* return an error if the client API doesn't support GL_[OES|MESA]_EGL_sync. */
2038    if (ctx == EGL_NO_CONTEXT ||
2039          (ctx->ClientAPI != EGL_OPENGL_ES_API &&
2040           ctx->ClientAPI != EGL_OPENGL_API))
2041       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_FALSE);
2042
2043    /* the API doesn't allow any flags yet */
2044    if (flags != 0)
2045       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2046
2047    ret = drv->WaitSyncKHR(drv, disp, s);
2048
2049    RETURN_EGL_EVAL(disp, ret);
2050 }
2051
2052 static EGLint EGLAPIENTRY
2053 eglWaitSyncKHR(EGLDisplay dpy, EGLSync sync, EGLint flags)
2054 {
2055    _EGLDisplay *disp = _eglLockDisplay(dpy);
2056    _EGLSync *s = _eglLookupSync(sync, disp);
2057    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2058    return _eglWaitSyncCommon(disp, s, flags);
2059 }
2060
2061
2062 EGLBoolean EGLAPIENTRY
2063 eglWaitSync(EGLDisplay dpy, EGLSync sync, EGLint flags)
2064 {
2065    /* The KHR version returns EGLint, while the core version returns
2066     * EGLBoolean. In both cases, the return values can only be EGL_FALSE and
2067     * EGL_TRUE.
2068     */
2069    _EGLDisplay *disp = _eglLockDisplay(dpy);
2070    _EGLSync *s = _eglLookupSync(sync, disp);
2071    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2072    return _eglWaitSyncCommon(disp, s, flags);
2073 }
2074
2075
2076 static EGLBoolean EGLAPIENTRY
2077 eglSignalSyncKHR(EGLDisplay dpy, EGLSync sync, EGLenum mode)
2078 {
2079    _EGLDisplay *disp = _eglLockDisplay(dpy);
2080    _EGLSync *s = _eglLookupSync(sync, disp);
2081    const _EGLDriver *drv;
2082    EGLBoolean ret;
2083
2084    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2085
2086    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
2087    assert(disp->Extensions.KHR_reusable_sync);
2088    ret = drv->SignalSyncKHR(drv, disp, s, mode);
2089
2090    RETURN_EGL_EVAL(disp, ret);
2091 }
2092
2093
2094 static EGLBoolean
2095 _eglGetSyncAttribCommon(_EGLDisplay *disp, _EGLSync *s, EGLint attribute, EGLAttrib *value)
2096 {
2097    const _EGLDriver *drv;
2098    EGLBoolean ret;
2099
2100    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
2101    assert(disp->Extensions.KHR_reusable_sync ||
2102           disp->Extensions.KHR_fence_sync ||
2103           disp->Extensions.ANDROID_native_fence_sync);
2104
2105    ret = _eglGetSyncAttrib(drv, disp, s, attribute, value);
2106
2107    RETURN_EGL_EVAL(disp, ret);
2108 }
2109
2110 EGLBoolean EGLAPIENTRY
2111 eglGetSyncAttrib(EGLDisplay dpy, EGLSync sync, EGLint attribute, EGLAttrib *value)
2112 {
2113    _EGLDisplay *disp = _eglLockDisplay(dpy);
2114    _EGLSync *s = _eglLookupSync(sync, disp);
2115    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2116
2117    if (!value)
2118       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2119
2120    return _eglGetSyncAttribCommon(disp, s, attribute, value);
2121 }
2122
2123
2124 static EGLBoolean EGLAPIENTRY
2125 eglGetSyncAttribKHR(EGLDisplay dpy, EGLSync sync, EGLint attribute, EGLint *value)
2126 {
2127    _EGLDisplay *disp = _eglLockDisplay(dpy);
2128    _EGLSync *s = _eglLookupSync(sync, disp);
2129    EGLAttrib attrib;
2130    EGLBoolean result;
2131
2132    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2133
2134    if (!value)
2135       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2136
2137    attrib = *value;
2138    result = _eglGetSyncAttribCommon(disp, s, attribute, &attrib);
2139
2140    /* The EGL_KHR_fence_sync spec says this about eglGetSyncAttribKHR:
2141     *
2142     *    If any error occurs, <*value> is not modified.
2143     */
2144    if (result == EGL_FALSE)
2145       return result;
2146
2147    *value = attrib;
2148    return result;
2149 }
2150
2151 static EGLint EGLAPIENTRY
2152 eglDupNativeFenceFDANDROID(EGLDisplay dpy, EGLSync sync)
2153 {
2154    _EGLDisplay *disp = _eglLockDisplay(dpy);
2155    _EGLSync *s = _eglLookupSync(sync, disp);
2156    const _EGLDriver *drv;
2157    EGLBoolean ret;
2158
2159    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2160
2161    /* the spec doesn't seem to specify what happens if the fence
2162     * type is not EGL_SYNC_NATIVE_FENCE_ANDROID, but this seems
2163     * sensible:
2164     */
2165    if (!(s && (s->Type == EGL_SYNC_NATIVE_FENCE_ANDROID)))
2166       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_NO_NATIVE_FENCE_FD_ANDROID);
2167
2168    _EGL_CHECK_SYNC(disp, s, EGL_NO_NATIVE_FENCE_FD_ANDROID, drv);
2169    assert(disp->Extensions.ANDROID_native_fence_sync);
2170    ret = drv->DupNativeFenceFDANDROID(drv, disp, s);
2171
2172    RETURN_EGL_EVAL(disp, ret);
2173 }
2174
2175 static EGLBoolean EGLAPIENTRY
2176 eglSwapBuffersRegionNOK(EGLDisplay dpy, EGLSurface surface,
2177                         EGLint numRects, const EGLint *rects)
2178 {
2179    _EGLContext *ctx = _eglGetCurrentContext();
2180    _EGLDisplay *disp = _eglLockDisplay(dpy);
2181    _EGLSurface *surf = _eglLookupSurface(surface, disp);
2182    const _EGLDriver *drv;
2183    EGLBoolean ret;
2184
2185    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
2186
2187    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
2188
2189    if (!disp->Extensions.NOK_swap_region)
2190       RETURN_EGL_EVAL(disp, EGL_FALSE);
2191
2192    /* surface must be bound to current context in EGL 1.4 */
2193    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
2194        surf != ctx->DrawSurface)
2195       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
2196
2197    ret = drv->SwapBuffersRegionNOK(drv, disp, surf, numRects, rects);
2198
2199    RETURN_EGL_EVAL(disp, ret);
2200 }
2201
2202
2203 static EGLImage EGLAPIENTRY
2204 eglCreateDRMImageMESA(EGLDisplay dpy, const EGLint *attr_list)
2205 {
2206    _EGLDisplay *disp = _eglLockDisplay(dpy);
2207    const _EGLDriver *drv;
2208    _EGLImage *img;
2209    EGLImage ret;
2210
2211    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
2212
2213    _EGL_CHECK_DISPLAY(disp, EGL_NO_IMAGE_KHR, drv);
2214    if (!disp->Extensions.MESA_drm_image)
2215       RETURN_EGL_EVAL(disp, EGL_NO_IMAGE_KHR);
2216
2217    img = drv->CreateDRMImageMESA(drv, disp, attr_list);
2218    ret = (img) ? _eglLinkImage(img) : EGL_NO_IMAGE_KHR;
2219
2220    RETURN_EGL_EVAL(disp, ret);
2221 }
2222
2223 static EGLBoolean EGLAPIENTRY
2224 eglExportDRMImageMESA(EGLDisplay dpy, EGLImage image,
2225                       EGLint *name, EGLint *handle, EGLint *stride)
2226 {
2227    _EGLDisplay *disp = _eglLockDisplay(dpy);
2228    _EGLImage *img = _eglLookupImage(image, disp);
2229    const _EGLDriver *drv;
2230    EGLBoolean ret;
2231
2232    _EGL_FUNC_START(disp, EGL_OBJECT_IMAGE_KHR, img, EGL_FALSE);
2233
2234    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2235    assert(disp->Extensions.MESA_drm_image);
2236
2237    if (!img)
2238       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2239
2240    ret = drv->ExportDRMImageMESA(drv, disp, img, name, handle, stride);
2241
2242    RETURN_EGL_EVAL(disp, ret);
2243 }
2244
2245
2246 struct wl_display;
2247
2248 static EGLBoolean EGLAPIENTRY
2249 eglBindWaylandDisplayWL(EGLDisplay dpy, struct wl_display *display)
2250 {
2251    _EGLDisplay *disp = _eglLockDisplay(dpy);
2252    const _EGLDriver *drv;
2253    EGLBoolean ret;
2254
2255    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
2256
2257    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2258    assert(disp->Extensions.WL_bind_wayland_display);
2259
2260    if (!display)
2261       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2262
2263    ret = drv->BindWaylandDisplayWL(drv, disp, display);
2264
2265    RETURN_EGL_EVAL(disp, ret);
2266 }
2267
2268 static EGLBoolean EGLAPIENTRY
2269 eglUnbindWaylandDisplayWL(EGLDisplay dpy, struct wl_display *display)
2270 {
2271    _EGLDisplay *disp = _eglLockDisplay(dpy);
2272    const _EGLDriver *drv;
2273    EGLBoolean ret;
2274
2275    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
2276
2277    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2278    assert(disp->Extensions.WL_bind_wayland_display);
2279
2280    if (!display)
2281       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2282
2283    ret = drv->UnbindWaylandDisplayWL(drv, disp, display);
2284
2285    RETURN_EGL_EVAL(disp, ret);
2286 }
2287
2288 static EGLBoolean EGLAPIENTRY
2289 eglQueryWaylandBufferWL(EGLDisplay dpy, struct wl_resource *buffer,
2290                         EGLint attribute, EGLint *value)
2291 {
2292    _EGLDisplay *disp = _eglLockDisplay(dpy);
2293    const _EGLDriver *drv;
2294    EGLBoolean ret;
2295
2296    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
2297
2298    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2299    assert(disp->Extensions.WL_bind_wayland_display);
2300
2301    if (!buffer)
2302       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2303
2304    ret = drv->QueryWaylandBufferWL(drv, disp, buffer, attribute, value);
2305
2306    RETURN_EGL_EVAL(disp, ret);
2307 }
2308
2309
2310 static struct wl_buffer * EGLAPIENTRY
2311 eglCreateWaylandBufferFromImageWL(EGLDisplay dpy, EGLImage image)
2312 {
2313    _EGLDisplay *disp = _eglLockDisplay(dpy);
2314    _EGLImage *img;
2315    const _EGLDriver *drv;
2316    struct wl_buffer *ret;
2317
2318    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
2319
2320    _EGL_CHECK_DISPLAY(disp, NULL, drv);
2321    if (!disp->Extensions.WL_create_wayland_buffer_from_image)
2322       RETURN_EGL_EVAL(disp, NULL);
2323
2324    img = _eglLookupImage(image, disp);
2325
2326    if (!img)
2327       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, NULL);
2328
2329    ret = drv->CreateWaylandBufferFromImageWL(drv, disp, img);
2330
2331    RETURN_EGL_EVAL(disp, ret);
2332 }
2333
2334 static EGLBoolean EGLAPIENTRY
2335 eglPostSubBufferNV(EGLDisplay dpy, EGLSurface surface,
2336                    EGLint x, EGLint y, EGLint width, EGLint height)
2337 {
2338    _EGLDisplay *disp = _eglLockDisplay(dpy);
2339    _EGLSurface *surf = _eglLookupSurface(surface, disp);
2340    const _EGLDriver *drv;
2341    EGLBoolean ret;
2342
2343    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
2344
2345    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
2346
2347    if (!disp->Extensions.NV_post_sub_buffer)
2348       RETURN_EGL_EVAL(disp, EGL_FALSE);
2349
2350    ret = drv->PostSubBufferNV(drv, disp, surf, x, y, width, height);
2351
2352    RETURN_EGL_EVAL(disp, ret);
2353 }
2354
2355 static EGLBoolean EGLAPIENTRY
2356 eglGetSyncValuesCHROMIUM(EGLDisplay dpy, EGLSurface surface,
2357                          EGLuint64KHR *ust, EGLuint64KHR *msc,
2358                          EGLuint64KHR *sbc)
2359 {
2360    _EGLDisplay *disp = _eglLockDisplay(dpy);
2361    _EGLSurface *surf = _eglLookupSurface(surface, disp);
2362    const _EGLDriver *drv;
2363    EGLBoolean ret;
2364
2365    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
2366
2367    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
2368    if (!disp->Extensions.CHROMIUM_sync_control)
2369       RETURN_EGL_EVAL(disp, EGL_FALSE);
2370
2371    if (!ust || !msc || !sbc)
2372       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2373
2374    ret = drv->GetSyncValuesCHROMIUM(disp, surf, ust, msc, sbc);
2375
2376    RETURN_EGL_EVAL(disp, ret);
2377 }
2378
2379 static EGLBoolean EGLAPIENTRY
2380 eglExportDMABUFImageQueryMESA(EGLDisplay dpy, EGLImage image,
2381                               EGLint *fourcc, EGLint *nplanes,
2382                               EGLuint64KHR *modifiers)
2383 {
2384    _EGLDisplay *disp = _eglLockDisplay(dpy);
2385    _EGLImage *img = _eglLookupImage(image, disp);
2386    const _EGLDriver *drv;
2387    EGLBoolean ret;
2388
2389    _EGL_FUNC_START(disp, EGL_OBJECT_IMAGE_KHR, img, EGL_FALSE);
2390
2391    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2392    assert(disp->Extensions.MESA_image_dma_buf_export);
2393
2394    if (!img)
2395       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2396
2397    ret = drv->ExportDMABUFImageQueryMESA(drv, disp, img, fourcc, nplanes,
2398                                              modifiers);
2399
2400    RETURN_EGL_EVAL(disp, ret);
2401 }
2402
2403 static EGLBoolean EGLAPIENTRY
2404 eglExportDMABUFImageMESA(EGLDisplay dpy, EGLImage image,
2405                          int *fds, EGLint *strides, EGLint *offsets)
2406 {
2407    _EGLDisplay *disp = _eglLockDisplay(dpy);
2408    _EGLImage *img = _eglLookupImage(image, disp);
2409    const _EGLDriver *drv;
2410    EGLBoolean ret;
2411
2412    _EGL_FUNC_START(disp, EGL_OBJECT_IMAGE_KHR, img, EGL_FALSE);
2413
2414    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2415    assert(disp->Extensions.MESA_image_dma_buf_export);
2416
2417    if (!img)
2418       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2419
2420    ret = drv->ExportDMABUFImageMESA(drv, disp, img, fds, strides, offsets);
2421
2422    RETURN_EGL_EVAL(disp, ret);
2423 }
2424
2425 static EGLint EGLAPIENTRY
2426 eglLabelObjectKHR(EGLDisplay dpy, EGLenum objectType, EGLObjectKHR object,
2427                   EGLLabelKHR label)
2428 {
2429    _EGLDisplay *disp = NULL;
2430    _EGLResourceType type;
2431
2432    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_BAD_ALLOC);
2433
2434    if (objectType == EGL_OBJECT_THREAD_KHR) {
2435       _EGLThreadInfo *t = _eglGetCurrentThread();
2436
2437       if (!_eglIsCurrentThreadDummy()) {
2438          t->Label = label;
2439          return EGL_SUCCESS;
2440       }
2441
2442       RETURN_EGL_ERROR(NULL, EGL_BAD_ALLOC, EGL_BAD_ALLOC);
2443    }
2444
2445    disp = _eglLockDisplay(dpy);
2446    if (disp == NULL)
2447       RETURN_EGL_ERROR(disp, EGL_BAD_DISPLAY, EGL_BAD_DISPLAY);
2448
2449    if (objectType == EGL_OBJECT_DISPLAY_KHR) {
2450       if (dpy != (EGLDisplay) object)
2451          RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_BAD_PARAMETER);
2452
2453       disp->Label = label;
2454       RETURN_EGL_EVAL(disp, EGL_SUCCESS);
2455    }
2456
2457    switch (objectType) {
2458       case EGL_OBJECT_CONTEXT_KHR:
2459          type = _EGL_RESOURCE_CONTEXT;
2460          break;
2461       case EGL_OBJECT_SURFACE_KHR:
2462          type = _EGL_RESOURCE_SURFACE;
2463          break;
2464       case EGL_OBJECT_IMAGE_KHR:
2465          type = _EGL_RESOURCE_IMAGE;
2466          break;
2467       case EGL_OBJECT_SYNC_KHR:
2468          type = _EGL_RESOURCE_SYNC;
2469          break;
2470       case EGL_OBJECT_STREAM_KHR:
2471       default:
2472          RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_BAD_PARAMETER);
2473    }
2474
2475    if (_eglCheckResource(object, type, disp)) {
2476       _EGLResource *res = (_EGLResource *) object;
2477
2478       res->Label = label;
2479       RETURN_EGL_EVAL(disp, EGL_SUCCESS);
2480    }
2481
2482    RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_BAD_PARAMETER);
2483 }
2484
2485 static EGLint EGLAPIENTRY
2486 eglDebugMessageControlKHR(EGLDEBUGPROCKHR callback,
2487                           const EGLAttrib *attrib_list)
2488 {
2489    unsigned int newEnabled;
2490
2491    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_BAD_ALLOC);
2492
2493    mtx_lock(_eglGlobal.Mutex);
2494
2495    newEnabled = _eglGlobal.debugTypesEnabled;
2496    if (attrib_list != NULL) {
2497       int i;
2498
2499       for (i = 0; attrib_list[i] != EGL_NONE; i += 2) {
2500          switch (attrib_list[i]) {
2501          case EGL_DEBUG_MSG_CRITICAL_KHR:
2502          case EGL_DEBUG_MSG_ERROR_KHR:
2503          case EGL_DEBUG_MSG_WARN_KHR:
2504          case EGL_DEBUG_MSG_INFO_KHR:
2505             if (attrib_list[i + 1])
2506                newEnabled |= DebugBitFromType(attrib_list[i]);
2507             else
2508                newEnabled &= ~DebugBitFromType(attrib_list[i]);
2509             break;
2510          default:
2511             // On error, set the last error code, call the current
2512             // debug callback, and return the error code.
2513             mtx_unlock(_eglGlobal.Mutex);
2514             _eglReportError(EGL_BAD_ATTRIBUTE, NULL,
2515                   "Invalid attribute 0x%04lx", (unsigned long) attrib_list[i]);
2516             return EGL_BAD_ATTRIBUTE;
2517          }
2518       }
2519    }
2520
2521    if (callback != NULL) {
2522       _eglGlobal.debugCallback = callback;
2523       _eglGlobal.debugTypesEnabled = newEnabled;
2524    } else {
2525       _eglGlobal.debugCallback = NULL;
2526       _eglGlobal.debugTypesEnabled = _EGL_DEBUG_BIT_CRITICAL | _EGL_DEBUG_BIT_ERROR;
2527    }
2528
2529    mtx_unlock(_eglGlobal.Mutex);
2530    return EGL_SUCCESS;
2531 }
2532
2533 static EGLBoolean EGLAPIENTRY
2534 eglQueryDebugKHR(EGLint attribute, EGLAttrib *value)
2535 {
2536    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_BAD_ALLOC);
2537
2538    mtx_lock(_eglGlobal.Mutex);
2539
2540    switch (attribute) {
2541    case EGL_DEBUG_MSG_CRITICAL_KHR:
2542    case EGL_DEBUG_MSG_ERROR_KHR:
2543    case EGL_DEBUG_MSG_WARN_KHR:
2544    case EGL_DEBUG_MSG_INFO_KHR:
2545       if (_eglGlobal.debugTypesEnabled & DebugBitFromType(attribute))
2546          *value = EGL_TRUE;
2547       else
2548          *value = EGL_FALSE;
2549       break;
2550    case EGL_DEBUG_CALLBACK_KHR:
2551       *value = (EGLAttrib) _eglGlobal.debugCallback;
2552       break;
2553    default:
2554       mtx_unlock(_eglGlobal.Mutex);
2555       _eglReportError(EGL_BAD_ATTRIBUTE, NULL,
2556                       "Invalid attribute 0x%04lx", (unsigned long) attribute);
2557       return EGL_FALSE;
2558    }
2559
2560    mtx_unlock(_eglGlobal.Mutex);
2561    return EGL_TRUE;
2562 }
2563
2564 static int
2565 _eglFunctionCompare(const void *key, const void *elem)
2566 {
2567    const char *procname = key;
2568    const struct _egl_entrypoint *entrypoint = elem;
2569    return strcmp(procname, entrypoint->name);
2570 }
2571
2572 static EGLBoolean EGLAPIENTRY
2573 eglQueryDmaBufFormatsEXT(EGLDisplay dpy, EGLint max_formats,
2574                          EGLint *formats, EGLint *num_formats)
2575 {
2576    _EGLDisplay *disp = _eglLockDisplay(dpy);
2577    const _EGLDriver *drv;
2578    EGLBoolean ret;
2579
2580    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_FALSE);
2581
2582    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2583
2584    ret = drv->QueryDmaBufFormatsEXT(drv, disp, max_formats, formats,
2585                                         num_formats);
2586
2587    RETURN_EGL_EVAL(disp, ret);
2588 }
2589
2590 static EGLBoolean EGLAPIENTRY
2591 eglQueryDmaBufModifiersEXT(EGLDisplay dpy, EGLint format, EGLint max_modifiers,
2592                            EGLuint64KHR *modifiers, EGLBoolean *external_only,
2593                            EGLint *num_modifiers)
2594 {
2595    _EGLDisplay *disp = _eglLockDisplay(dpy);
2596    const _EGLDriver *drv;
2597    EGLBoolean ret;
2598
2599    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_FALSE);
2600
2601    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2602
2603    ret = drv->QueryDmaBufModifiersEXT(drv, disp, format, max_modifiers,
2604                                           modifiers, external_only,
2605                                           num_modifiers);
2606
2607    RETURN_EGL_EVAL(disp, ret);
2608 }
2609
2610 static void EGLAPIENTRY
2611 eglSetBlobCacheFuncsANDROID(EGLDisplay *dpy, EGLSetBlobFuncANDROID set,
2612                             EGLGetBlobFuncANDROID get)
2613 {
2614    /* This function does not return anything so we cannot
2615     * utilize the helper macros _EGL_FUNC_START or _EGL_CHECK_DISPLAY.
2616     */
2617    _EGLDisplay *disp = _eglLockDisplay(dpy);
2618    if (!_eglSetFuncName(__func__, disp, EGL_OBJECT_DISPLAY_KHR, NULL)) {
2619       if (disp)
2620          _eglUnlockDisplay(disp);
2621       return;
2622    }
2623
2624    const _EGLDriver *drv = _eglCheckDisplay(disp, __func__);
2625    if (!drv) {
2626       if (disp)
2627          _eglUnlockDisplay(disp);
2628       return;
2629    }
2630
2631    if (!set || !get) {
2632       _eglError(EGL_BAD_PARAMETER,
2633                 "eglSetBlobCacheFuncsANDROID: NULL handler given");
2634       _eglUnlockDisplay(disp);
2635       return;
2636    }
2637
2638    if (disp->BlobCacheSet) {
2639       _eglError(EGL_BAD_PARAMETER,
2640                 "eglSetBlobCacheFuncsANDROID: functions already set");
2641       _eglUnlockDisplay(disp);
2642       return;
2643    }
2644
2645    disp->BlobCacheSet = set;
2646    disp->BlobCacheGet = get;
2647
2648    drv->SetBlobCacheFuncsANDROID(drv, disp, set, get);
2649
2650    _eglUnlockDisplay(disp);
2651 }
2652
2653 static EGLBoolean EGLAPIENTRY
2654 eglQueryDeviceAttribEXT(EGLDeviceEXT device,
2655                         EGLint attribute,
2656                         EGLAttrib *value)
2657 {
2658    _EGLDevice *dev = _eglLookupDevice(device);
2659    EGLBoolean ret;
2660
2661    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_FALSE);
2662    if (!dev)
2663       RETURN_EGL_ERROR(NULL, EGL_BAD_DEVICE_EXT, EGL_FALSE);
2664
2665    ret = _eglQueryDeviceAttribEXT(dev, attribute, value);
2666    RETURN_EGL_EVAL(NULL, ret);
2667 }
2668
2669 static const char * EGLAPIENTRY
2670 eglQueryDeviceStringEXT(EGLDeviceEXT device,
2671                         EGLint name)
2672 {
2673    _EGLDevice *dev = _eglLookupDevice(device);
2674
2675    _EGL_FUNC_START(NULL, EGL_NONE, NULL, NULL);
2676    if (!dev)
2677       RETURN_EGL_ERROR(NULL, EGL_BAD_DEVICE_EXT, NULL);
2678
2679    RETURN_EGL_EVAL(NULL, _eglQueryDeviceStringEXT(dev, name));
2680 }
2681
2682 static EGLBoolean EGLAPIENTRY
2683 eglQueryDevicesEXT(EGLint max_devices,
2684                    EGLDeviceEXT *devices,
2685                    EGLint *num_devices)
2686 {
2687    EGLBoolean ret;
2688
2689    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_FALSE);
2690    ret = _eglQueryDevicesEXT(max_devices, (_EGLDevice **) devices,
2691                              num_devices);
2692    RETURN_EGL_EVAL(NULL, ret);
2693 }
2694
2695 static EGLBoolean EGLAPIENTRY
2696 eglQueryDisplayAttribEXT(EGLDisplay dpy,
2697                          EGLint attribute,
2698                          EGLAttrib *value)
2699 {
2700    _EGLDisplay *disp = _eglLockDisplay(dpy);
2701    const _EGLDriver *drv;
2702
2703    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_FALSE);
2704    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2705
2706    switch (attribute) {
2707    case EGL_DEVICE_EXT:
2708       *value = (EGLAttrib) disp->Device;
2709       break;
2710    default:
2711       RETURN_EGL_ERROR(disp, EGL_BAD_ATTRIBUTE, EGL_FALSE);
2712    }
2713    RETURN_EGL_SUCCESS(disp, EGL_TRUE);
2714 }
2715
2716 static char * EGLAPIENTRY
2717 eglGetDisplayDriverConfig(EGLDisplay dpy)
2718 {
2719     _EGLDisplay *disp = _eglLockDisplay(dpy);
2720     const _EGLDriver *drv;
2721     char *ret;
2722
2723     _EGL_FUNC_START(disp, EGL_NONE, NULL, NULL);
2724     _EGL_CHECK_DISPLAY(disp, NULL, drv);
2725
2726     assert(disp->Extensions.MESA_query_driver);
2727
2728     ret = drv->QueryDriverConfig(disp);
2729     RETURN_EGL_EVAL(disp, ret);
2730 }
2731
2732 static const char * EGLAPIENTRY
2733 eglGetDisplayDriverName(EGLDisplay dpy)
2734 {
2735     _EGLDisplay *disp = _eglLockDisplay(dpy);
2736     const _EGLDriver *drv;
2737     const char *ret;
2738
2739     _EGL_FUNC_START(disp, EGL_NONE, NULL, NULL);
2740     _EGL_CHECK_DISPLAY(disp, NULL, drv);
2741
2742     assert(disp->Extensions.MESA_query_driver);
2743
2744     ret = drv->QueryDriverName(disp);
2745     RETURN_EGL_EVAL(disp, ret);
2746 }
2747
2748 __eglMustCastToProperFunctionPointerType EGLAPIENTRY
2749 eglGetProcAddress(const char *procname)
2750 {
2751    static const struct _egl_entrypoint egl_functions[] = {
2752 #define EGL_ENTRYPOINT(f) { .name = #f, .function = (_EGLProc) f },
2753 #include "eglentrypoint.h"
2754 #undef EGL_ENTRYPOINT
2755    };
2756    _EGLProc ret = NULL;
2757
2758    if (!procname)
2759       RETURN_EGL_SUCCESS(NULL, NULL);
2760
2761    _EGL_FUNC_START(NULL, EGL_NONE, NULL, NULL);
2762
2763    if (strncmp(procname, "egl", 3) == 0) {
2764       const struct _egl_entrypoint *entrypoint =
2765          bsearch(procname,
2766                  egl_functions, ARRAY_SIZE(egl_functions),
2767                  sizeof(egl_functions[0]),
2768                  _eglFunctionCompare);
2769       if (entrypoint)
2770          ret = entrypoint->function;
2771    }
2772
2773    if (!ret)
2774       ret = _eglGetDriverProc(procname);
2775
2776    RETURN_EGL_SUCCESS(NULL, ret);
2777 }
2778
2779 static int
2780 _eglLockDisplayInterop(EGLDisplay dpy, EGLContext context,
2781                        _EGLDisplay **disp, const _EGLDriver **drv,
2782                        _EGLContext **ctx)
2783 {
2784
2785    *disp = _eglLockDisplay(dpy);
2786    if (!*disp || !(*disp)->Initialized || !(*disp)->Driver) {
2787       if (*disp)
2788          _eglUnlockDisplay(*disp);
2789       return MESA_GLINTEROP_INVALID_DISPLAY;
2790    }
2791
2792    *drv = (*disp)->Driver;
2793
2794    *ctx = _eglLookupContext(context, *disp);
2795    if (!*ctx ||
2796        ((*ctx)->ClientAPI != EGL_OPENGL_API &&
2797         (*ctx)->ClientAPI != EGL_OPENGL_ES_API)) {
2798       _eglUnlockDisplay(*disp);
2799       return MESA_GLINTEROP_INVALID_CONTEXT;
2800    }
2801
2802    return MESA_GLINTEROP_SUCCESS;
2803 }
2804
2805 PUBLIC int
2806 MesaGLInteropEGLQueryDeviceInfo(EGLDisplay dpy, EGLContext context,
2807                                 struct mesa_glinterop_device_info *out)
2808 {
2809    _EGLDisplay *disp;
2810    const _EGLDriver *drv;
2811    _EGLContext *ctx;
2812    int ret;
2813
2814    ret = _eglLockDisplayInterop(dpy, context, &disp, &drv, &ctx);
2815    if (ret != MESA_GLINTEROP_SUCCESS)
2816       return ret;
2817
2818    if (drv->GLInteropQueryDeviceInfo)
2819       ret = drv->GLInteropQueryDeviceInfo(disp, ctx, out);
2820    else
2821       ret = MESA_GLINTEROP_UNSUPPORTED;
2822
2823    _eglUnlockDisplay(disp);
2824    return ret;
2825 }
2826
2827 PUBLIC int
2828 MesaGLInteropEGLExportObject(EGLDisplay dpy, EGLContext context,
2829                              struct mesa_glinterop_export_in *in,
2830                              struct mesa_glinterop_export_out *out)
2831 {
2832    _EGLDisplay *disp;
2833    const _EGLDriver *drv;
2834    _EGLContext *ctx;
2835    int ret;
2836
2837    ret = _eglLockDisplayInterop(dpy, context, &disp, &drv, &ctx);
2838    if (ret != MESA_GLINTEROP_SUCCESS)
2839       return ret;
2840
2841    if (drv->GLInteropExportObject)
2842       ret = drv->GLInteropExportObject(disp, ctx, in, out);
2843    else
2844       ret = MESA_GLINTEROP_UNSUPPORTED;
2845
2846    _eglUnlockDisplay(disp);
2847    return ret;
2848 }