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(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(disp, conf, native_window, attrib_list);
 972    ret = (surf) ? _eglLinkSurface(surf) : EGL_NO_SURFACE;
 973
 974    RETURN_EGL_EVAL(disp, ret);
 975 }
 976
 977
 978 EGLSurface EGLAPIENTRY
 979 eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config,
 980                        EGLNativeWindowType window, const EGLint *attrib_list)
 981 {
 982    _EGLDisplay *disp = _eglLockDisplay(dpy);
 983
 984    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
 985    STATIC_ASSERT(sizeof(void*) == sizeof(window));
 986    return _eglCreateWindowSurfaceCommon(disp, config, (void*) window,
 987                                         attrib_list);
 988 }
 989
 990 static void *
 991 _fixupNativeWindow(_EGLDisplay *disp, void *native_window)
 992 {
 993 #ifdef HAVE_X11_PLATFORM
 994    if (disp && disp->Platform == _EGL_PLATFORM_X11 && native_window != NULL) {
 995       /* The `native_window` parameter for the X11 platform differs between
 996        * eglCreateWindowSurface() and eglCreatePlatformPixmapSurfaceEXT(). In
 997        * eglCreateWindowSurface(), the type of `native_window` is an Xlib
 998        * `Window`. In eglCreatePlatformWindowSurfaceEXT(), the type is
 999        * `Window*`.  Convert `Window*` to `Window` because that's what
1000        * dri2_x11_create_window_surface() expects.
1001        */
1002       return (void *)(* (Window*) native_window);
1003    }
1004 #endif
1005    return native_window;
1006 }
1007
1008 static EGLSurface EGLAPIENTRY
1009 eglCreatePlatformWindowSurfaceEXT(EGLDisplay dpy, EGLConfig config,
1010                                   void *native_window,
1011                                   const EGLint *attrib_list)
1012 {
1013    _EGLDisplay *disp = _eglLockDisplay(dpy);
1014
1015    native_window = _fixupNativeWindow(disp, native_window);
1016
1017    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
1018    return _eglCreateWindowSurfaceCommon(disp, config, native_window,
1019                                         attrib_list);
1020 }
1021
1022
1023 EGLSurface EGLAPIENTRY
1024 eglCreatePlatformWindowSurface(EGLDisplay dpy, EGLConfig config,
1025                                void *native_window,
1026                                const EGLAttrib *attrib_list)
1027 {
1028    _EGLDisplay *disp = _eglLockDisplay(dpy);
1029    EGLSurface surface;
1030    EGLint *int_attribs;
1031
1032    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
1033
1034    int_attribs = _eglConvertAttribsToInt(attrib_list);
1035    if (attrib_list && !int_attribs)
1036       RETURN_EGL_ERROR(disp, EGL_BAD_ALLOC, EGL_NO_SURFACE);
1037
1038    native_window = _fixupNativeWindow(disp, native_window);
1039    surface = _eglCreateWindowSurfaceCommon(disp, config, native_window,
1040                                            int_attribs);
1041    free(int_attribs);
1042    return surface;
1043 }
1044
1045 static void *
1046 _fixupNativePixmap(_EGLDisplay *disp, void *native_pixmap)
1047 {
1048 #ifdef HAVE_X11_PLATFORM
1049    /* The `native_pixmap` parameter for the X11 platform differs between
1050     * eglCreatePixmapSurface() and eglCreatePlatformPixmapSurfaceEXT(). In
1051     * eglCreatePixmapSurface(), the type of `native_pixmap` is an Xlib
1052     * `Pixmap`. In eglCreatePlatformPixmapSurfaceEXT(), the type is
1053     * `Pixmap*`.  Convert `Pixmap*` to `Pixmap` because that's what
1054     * dri2_x11_create_pixmap_surface() expects.
1055     */
1056    if (disp && disp->Platform == _EGL_PLATFORM_X11 && native_pixmap != NULL)
1057       return (void *)(* (Pixmap*) native_pixmap);
1058 #endif
1059    return native_pixmap;
1060 }
1061
1062 static EGLSurface
1063 _eglCreatePixmapSurfaceCommon(_EGLDisplay *disp, EGLConfig config,
1064                               void *native_pixmap, const EGLint *attrib_list)
1065 {
1066    _EGLConfig *conf = _eglLookupConfig(config, disp);
1067    const _EGLDriver *drv;
1068    _EGLSurface *surf;
1069    EGLSurface ret;
1070
1071    if (disp && (disp->Platform == _EGL_PLATFORM_SURFACELESS ||
1072                 disp->Platform == _EGL_PLATFORM_DEVICE)) {
1073       /* From the EGL_MESA_platform_surfaceless spec (v1):
1074        *
1075        *   [Like eglCreatePlatformWindowSurface,] eglCreatePlatformPixmapSurface
1076        *   also fails when called with a <display> that belongs to the
1077        *   surfaceless platform.  It returns EGL_NO_SURFACE and generates
1078        *   EGL_BAD_NATIVE_PIXMAP.
1079        *
1080        * This check must occur before checking the EGLConfig, which emits
1081        * EGL_BAD_CONFIG.
1082        */
1083       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE);
1084    }
1085
1086    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
1087
1088    if ((conf->SurfaceType & EGL_PIXMAP_BIT) == 0)
1089       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_NO_SURFACE);
1090
1091    if (native_pixmap == NULL)
1092       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE);
1093
1094    if (_eglNativeSurfaceAlreadyUsed(disp, native_pixmap))
1095       RETURN_EGL_ERROR(disp, EGL_BAD_ALLOC, EGL_NO_SURFACE);
1096
1097    surf = drv->CreatePixmapSurface(disp, conf, native_pixmap, attrib_list);
1098    ret = (surf) ? _eglLinkSurface(surf) : EGL_NO_SURFACE;
1099
1100    RETURN_EGL_EVAL(disp, ret);
1101 }
1102
1103
1104 EGLSurface EGLAPIENTRY
1105 eglCreatePixmapSurface(EGLDisplay dpy, EGLConfig config,
1106                        EGLNativePixmapType pixmap, const EGLint *attrib_list)
1107 {
1108    _EGLDisplay *disp = _eglLockDisplay(dpy);
1109
1110    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
1111    STATIC_ASSERT(sizeof(void*) == sizeof(pixmap));
1112    return _eglCreatePixmapSurfaceCommon(disp, config, (void*) pixmap,
1113                                         attrib_list);
1114 }
1115
1116 static EGLSurface EGLAPIENTRY
1117 eglCreatePlatformPixmapSurfaceEXT(EGLDisplay dpy, EGLConfig config,
1118                                   void *native_pixmap,
1119                                   const EGLint *attrib_list)
1120 {
1121    _EGLDisplay *disp = _eglLockDisplay(dpy);
1122
1123    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
1124    native_pixmap = _fixupNativePixmap(disp, native_pixmap);
1125    return _eglCreatePixmapSurfaceCommon(disp, config, native_pixmap,
1126                                         attrib_list);
1127 }
1128
1129
1130 EGLSurface EGLAPIENTRY
1131 eglCreatePlatformPixmapSurface(EGLDisplay dpy, EGLConfig config,
1132                                void *native_pixmap,
1133                                const EGLAttrib *attrib_list)
1134 {
1135    _EGLDisplay *disp = _eglLockDisplay(dpy);
1136    EGLSurface surface;
1137    EGLint *int_attribs;
1138
1139    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
1140
1141    int_attribs = _eglConvertAttribsToInt(attrib_list);
1142    if (attrib_list && !int_attribs)
1143       RETURN_EGL_ERROR(disp, EGL_BAD_ALLOC, EGL_NO_SURFACE);
1144
1145    native_pixmap = _fixupNativePixmap(disp, native_pixmap);
1146    surface = _eglCreatePixmapSurfaceCommon(disp, config, native_pixmap,
1147                                            int_attribs);
1148    free(int_attribs);
1149    return surface;
1150 }
1151
1152
1153 EGLSurface EGLAPIENTRY
1154 eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config,
1155                         const EGLint *attrib_list)
1156 {
1157    _EGLDisplay *disp = _eglLockDisplay(dpy);
1158    _EGLConfig *conf = _eglLookupConfig(config, disp);
1159    const _EGLDriver *drv;
1160    _EGLSurface *surf;
1161    EGLSurface ret;
1162
1163    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
1164    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
1165
1166    if ((conf->SurfaceType & EGL_PBUFFER_BIT) == 0)
1167       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_NO_SURFACE);
1168
1169    surf = drv->CreatePbufferSurface(disp, conf, attrib_list);
1170    ret = (surf) ? _eglLinkSurface(surf) : EGL_NO_SURFACE;
1171
1172    RETURN_EGL_EVAL(disp, ret);
1173 }
1174
1175
1176 EGLBoolean EGLAPIENTRY
1177 eglDestroySurface(EGLDisplay dpy, EGLSurface surface)
1178 {
1179    _EGLDisplay *disp = _eglLockDisplay(dpy);
1180    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1181    const _EGLDriver *drv;
1182    EGLBoolean ret;
1183
1184    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1185    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1186    _eglUnlinkSurface(surf);
1187    ret = drv->DestroySurface(disp, surf);
1188
1189    RETURN_EGL_EVAL(disp, ret);
1190 }
1191
1192 EGLBoolean EGLAPIENTRY
1193 eglQuerySurface(EGLDisplay dpy, EGLSurface surface,
1194                 EGLint attribute, EGLint *value)
1195 {
1196    _EGLDisplay *disp = _eglLockDisplay(dpy);
1197    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1198    const _EGLDriver *drv;
1199    EGLBoolean ret;
1200
1201    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1202    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1203
1204    if (drv->QuerySurface)
1205       ret = drv->QuerySurface(disp, surf, attribute, value);
1206    else
1207       ret = _eglQuerySurface(disp, surf, attribute, value);
1208
1209    RETURN_EGL_EVAL(disp, ret);
1210 }
1211
1212 EGLBoolean EGLAPIENTRY
1213 eglSurfaceAttrib(EGLDisplay dpy, EGLSurface surface,
1214                  EGLint attribute, EGLint value)
1215 {
1216    _EGLDisplay *disp = _eglLockDisplay(dpy);
1217    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1218    const _EGLDriver *drv;
1219    EGLBoolean ret;
1220
1221    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1222    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1223
1224    ret = _eglSurfaceAttrib(drv, disp, surf, attribute, value);
1225
1226    RETURN_EGL_EVAL(disp, ret);
1227 }
1228
1229
1230 EGLBoolean EGLAPIENTRY
1231 eglBindTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer)
1232 {
1233    _EGLDisplay *disp = _eglLockDisplay(dpy);
1234    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1235    const _EGLDriver *drv;
1236    EGLBoolean ret;
1237
1238    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1239    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1240    ret = drv->BindTexImage(disp, surf, buffer);
1241
1242    RETURN_EGL_EVAL(disp, ret);
1243 }
1244
1245
1246 EGLBoolean EGLAPIENTRY
1247 eglReleaseTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer)
1248 {
1249    _EGLDisplay *disp = _eglLockDisplay(dpy);
1250    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1251    const _EGLDriver *drv;
1252    EGLBoolean ret;
1253
1254    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1255    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1256    ret = drv->ReleaseTexImage(disp, surf, buffer);
1257
1258    RETURN_EGL_EVAL(disp, ret);
1259 }
1260
1261
1262 EGLBoolean EGLAPIENTRY
1263 eglSwapInterval(EGLDisplay dpy, EGLint interval)
1264 {
1265    _EGLDisplay *disp = _eglLockDisplay(dpy);
1266    _EGLContext *ctx = _eglGetCurrentContext();
1267    _EGLSurface *surf = ctx ? ctx->DrawSurface : NULL;
1268    const _EGLDriver *drv;
1269    EGLBoolean ret;
1270
1271    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1272    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
1273
1274    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
1275        ctx->Resource.Display != disp)
1276       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_FALSE);
1277
1278    if (_eglGetSurfaceHandle(surf) == EGL_NO_SURFACE)
1279       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
1280
1281    if (surf->Type != EGL_WINDOW_BIT)
1282       RETURN_EGL_EVAL(disp, EGL_TRUE);
1283
1284    interval = CLAMP(interval,
1285                     surf->Config->MinSwapInterval,
1286                     surf->Config->MaxSwapInterval);
1287
1288    if (surf->SwapInterval != interval) {
1289       if (drv->SwapInterval)
1290          ret = drv->SwapInterval(disp, surf, interval);
1291       else
1292          ret = _eglSwapInterval(disp, surf, interval);
1293    }
1294    else {
1295       ret = EGL_TRUE;
1296    }
1297
1298    if (ret)
1299       surf->SwapInterval = interval;
1300
1301    RETURN_EGL_EVAL(disp, ret);
1302 }
1303
1304
1305 EGLBoolean EGLAPIENTRY
1306 eglSwapBuffers(EGLDisplay dpy, EGLSurface surface)
1307 {
1308    _EGLContext *ctx = _eglGetCurrentContext();
1309    _EGLDisplay *disp = _eglLockDisplay(dpy);
1310    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1311    const _EGLDriver *drv;
1312    EGLBoolean ret;
1313
1314    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1315    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1316
1317    /* surface must be bound to current context in EGL 1.4 */
1318    #ifndef _EGL_BUILT_IN_DRIVER_HAIKU
1319    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
1320        surf != ctx->DrawSurface)
1321       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
1322    #endif
1323
1324    if (surf->Type != EGL_WINDOW_BIT)
1325       RETURN_EGL_EVAL(disp, EGL_TRUE);
1326
1327    /* From the EGL 1.5 spec:
1328     *
1329     *    If eglSwapBuffers is called and the native window associated with
1330     *    surface is no longer valid, an EGL_BAD_NATIVE_WINDOW error is
1331     *    generated.
1332     */
1333    if (surf->Lost)
1334       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_WINDOW, EGL_FALSE);
1335
1336    ret = drv->SwapBuffers(disp, surf);
1337
1338    /* EGL_KHR_partial_update
1339     * Frame boundary successfully reached,
1340     * reset damage region and reset BufferAgeRead
1341     */
1342    if (ret) {
1343       surf->SetDamageRegionCalled = EGL_FALSE;
1344       surf->BufferAgeRead = EGL_FALSE;
1345    }
1346
1347    RETURN_EGL_EVAL(disp, ret);
1348 }
1349
1350
1351 static EGLBoolean
1352 _eglSwapBuffersWithDamageCommon(_EGLDisplay *disp, _EGLSurface *surf,
1353                                 const EGLint *rects, EGLint n_rects)
1354 {
1355    _EGLContext *ctx = _eglGetCurrentContext();
1356    const _EGLDriver *drv;
1357    EGLBoolean ret;
1358
1359    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1360
1361    /* surface must be bound to current context in EGL 1.4 */
1362    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
1363        surf != ctx->DrawSurface)
1364       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
1365
1366    if (surf->Type != EGL_WINDOW_BIT)
1367       RETURN_EGL_EVAL(disp, EGL_TRUE);
1368
1369    if ((n_rects > 0 && rects == NULL) || n_rects < 0)
1370       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
1371
1372    ret = drv->SwapBuffersWithDamageEXT(disp, surf, rects, n_rects);
1373
1374    /* EGL_KHR_partial_update
1375     * Frame boundary successfully reached,
1376     * reset damage region and reset BufferAgeRead
1377     */
1378    if (ret) {
1379       surf->SetDamageRegionCalled = EGL_FALSE;
1380       surf->BufferAgeRead = EGL_FALSE;
1381    }
1382
1383    RETURN_EGL_EVAL(disp, ret);
1384 }
1385
1386 static EGLBoolean EGLAPIENTRY
1387 eglSwapBuffersWithDamageEXT(EGLDisplay dpy, EGLSurface surface,
1388                             const EGLint *rects, EGLint n_rects)
1389 {
1390    _EGLDisplay *disp = _eglLockDisplay(dpy);
1391    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1392    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1393    return _eglSwapBuffersWithDamageCommon(disp, surf, rects, n_rects);
1394 }
1395
1396 static EGLBoolean EGLAPIENTRY
1397 eglSwapBuffersWithDamageKHR(EGLDisplay dpy, EGLSurface surface,
1398                             const EGLint *rects, EGLint n_rects)
1399 {
1400    _EGLDisplay *disp = _eglLockDisplay(dpy);
1401    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1402    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1403    return _eglSwapBuffersWithDamageCommon(disp, surf, rects, n_rects);
1404 }
1405
1406 /**
1407  * Clamp the rectangles so that they lie within the surface.
1408  */
1409
1410 static void
1411 _eglSetDamageRegionKHRClampRects(_EGLDisplay* disp, _EGLSurface* surf,
1412                                  EGLint *rects, EGLint n_rects)
1413 {
1414    EGLint i;
1415    EGLint surf_height = surf->Height;
1416    EGLint surf_width = surf->Width;
1417
1418    for (i = 0; i < (4 * n_rects); i += 4) {
1419       EGLint x1, y1, x2, y2;
1420       x1 = rects[i];
1421       y1 = rects[i + 1];
1422       x2 = rects[i + 2] + x1;
1423       y2 = rects[i + 3] + y1;
1424
1425       rects[i] = CLAMP(x1, 0, surf_width);
1426       rects[i + 1] = CLAMP(y1, 0, surf_height);
1427       rects[i + 2] = CLAMP(x2, 0, surf_width) - rects[i];
1428       rects[i + 3] = CLAMP(y2, 0, surf_height) - rects[i + 1];
1429    }
1430 }
1431
1432 static EGLBoolean EGLAPIENTRY
1433 eglSetDamageRegionKHR(EGLDisplay dpy, EGLSurface surface,
1434                       EGLint *rects, EGLint n_rects)
1435 {
1436    _EGLDisplay *disp = _eglLockDisplay(dpy);
1437    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1438    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1439    _EGLContext *ctx = _eglGetCurrentContext();
1440    const _EGLDriver *drv;
1441    EGLBoolean ret;
1442    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1443
1444    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
1445        surf->Type != EGL_WINDOW_BIT ||
1446        ctx->DrawSurface != surf ||
1447        surf->SwapBehavior != EGL_BUFFER_DESTROYED)
1448       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_FALSE);
1449
1450    /* If the damage region is already set or
1451     * buffer age is not queried between
1452     * frame boundaries, throw bad access error
1453     */
1454
1455    if (surf->SetDamageRegionCalled || !surf->BufferAgeRead)
1456       RETURN_EGL_ERROR(disp, EGL_BAD_ACCESS, EGL_FALSE);
1457
1458    _eglSetDamageRegionKHRClampRects(disp, surf, rects, n_rects);
1459    ret = drv->SetDamageRegion(disp, surf, rects, n_rects);
1460
1461    if (ret)
1462       surf->SetDamageRegionCalled = EGL_TRUE;
1463
1464    RETURN_EGL_EVAL(disp, ret);
1465 }
1466
1467 EGLBoolean EGLAPIENTRY
1468 eglCopyBuffers(EGLDisplay dpy, EGLSurface surface, EGLNativePixmapType target)
1469 {
1470    _EGLDisplay *disp = _eglLockDisplay(dpy);
1471    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1472    const _EGLDriver *drv;
1473    EGLBoolean ret;
1474    void *native_pixmap_ptr;
1475
1476    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
1477    STATIC_ASSERT(sizeof(void*) == sizeof(target));
1478    native_pixmap_ptr = (void*) target;
1479
1480    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1481    ret = drv->CopyBuffers(disp, surf, native_pixmap_ptr);
1482
1483    RETURN_EGL_EVAL(disp, ret);
1484 }
1485
1486
1487 static EGLBoolean
1488 _eglWaitClientCommon(void)
1489 {
1490    _EGLContext *ctx = _eglGetCurrentContext();
1491    _EGLDisplay *disp;
1492    EGLBoolean ret;
1493
1494    if (!ctx)
1495       RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
1496
1497    disp = ctx->Resource.Display;
1498    mtx_lock(&disp->Mutex);
1499
1500    /* let bad current context imply bad current surface */
1501    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
1502        _eglGetSurfaceHandle(ctx->DrawSurface) == EGL_NO_SURFACE)
1503       RETURN_EGL_ERROR(disp, EGL_BAD_CURRENT_SURFACE, EGL_FALSE);
1504
1505    /* a valid current context implies an initialized current display */
1506    assert(disp->Initialized);
1507    ret = disp->Driver->WaitClient(disp, ctx);
1508
1509    RETURN_EGL_EVAL(disp, ret);
1510 }
1511
1512 EGLBoolean EGLAPIENTRY
1513 eglWaitClient(void)
1514 {
1515    _EGL_FUNC_START(NULL, EGL_OBJECT_CONTEXT_KHR, _eglGetCurrentContext(), EGL_FALSE);
1516    return _eglWaitClientCommon();
1517 }
1518
1519 EGLBoolean EGLAPIENTRY
1520 eglWaitGL(void)
1521 {
1522    /* Since we only support OpenGL and GLES, eglWaitGL is equivalent to eglWaitClient. */
1523    _EGL_FUNC_START(NULL, EGL_OBJECT_CONTEXT_KHR, _eglGetCurrentContext(), EGL_FALSE);
1524    return _eglWaitClientCommon();
1525 }
1526
1527
1528 EGLBoolean EGLAPIENTRY
1529 eglWaitNative(EGLint engine)
1530 {
1531    _EGLContext *ctx = _eglGetCurrentContext();
1532    _EGLDisplay *disp;
1533    const _EGLDriver *drv;
1534    EGLBoolean ret;
1535
1536    if (!ctx)
1537       RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
1538
1539    _EGL_FUNC_START(NULL, EGL_OBJECT_THREAD_KHR, NULL, EGL_FALSE);
1540
1541    disp = ctx->Resource.Display;
1542    mtx_lock(&disp->Mutex);
1543
1544    /* let bad current context imply bad current surface */
1545    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
1546        _eglGetSurfaceHandle(ctx->DrawSurface) == EGL_NO_SURFACE)
1547       RETURN_EGL_ERROR(disp, EGL_BAD_CURRENT_SURFACE, EGL_FALSE);
1548
1549    /* a valid current context implies an initialized current display */
1550    assert(disp->Initialized);
1551    drv = disp->Driver;
1552    ret = drv->WaitNative(drv, disp, engine);
1553
1554    RETURN_EGL_EVAL(disp, ret);
1555 }
1556
1557
1558 EGLDisplay EGLAPIENTRY
1559 eglGetCurrentDisplay(void)
1560 {
1561    _EGLContext *ctx = _eglGetCurrentContext();
1562    EGLDisplay ret;
1563
1564    ret = (ctx) ? _eglGetDisplayHandle(ctx->Resource.Display) : EGL_NO_DISPLAY;
1565
1566    RETURN_EGL_SUCCESS(NULL, ret);
1567 }
1568
1569
1570 EGLContext EGLAPIENTRY
1571 eglGetCurrentContext(void)
1572 {
1573    _EGLContext *ctx = _eglGetCurrentContext();
1574    EGLContext ret;
1575
1576    ret = _eglGetContextHandle(ctx);
1577
1578    RETURN_EGL_SUCCESS(NULL, ret);
1579 }
1580
1581
1582 EGLSurface EGLAPIENTRY
1583 eglGetCurrentSurface(EGLint readdraw)
1584 {
1585    _EGLContext *ctx = _eglGetCurrentContext();
1586    EGLint err = EGL_SUCCESS;
1587    _EGLSurface *surf;
1588    EGLSurface ret;
1589
1590    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_NO_SURFACE);
1591
1592    if (!ctx)
1593       RETURN_EGL_SUCCESS(NULL, EGL_NO_SURFACE);
1594
1595    switch (readdraw) {
1596    case EGL_DRAW:
1597       surf = ctx->DrawSurface;
1598       break;
1599    case EGL_READ:
1600       surf = ctx->ReadSurface;
1601       break;
1602    default:
1603       surf = NULL;
1604       err = EGL_BAD_PARAMETER;
1605       break;
1606    }
1607
1608    ret = _eglGetSurfaceHandle(surf);
1609
1610    RETURN_EGL_ERROR(NULL, err, ret);
1611 }
1612
1613
1614 EGLint EGLAPIENTRY
1615 eglGetError(void)
1616 {
1617    _EGLThreadInfo *t = _eglGetCurrentThread();
1618    EGLint e = t->LastError;
1619    if (!_eglIsCurrentThreadDummy())
1620       t->LastError = EGL_SUCCESS;
1621    return e;
1622 }
1623
1624
1625 /**
1626  ** EGL 1.2
1627  **/
1628
1629 /**
1630  * Specify the client API to use for subsequent calls including:
1631  *  eglCreateContext()
1632  *  eglGetCurrentContext()
1633  *  eglGetCurrentDisplay()
1634  *  eglGetCurrentSurface()
1635  *  eglMakeCurrent(when the ctx parameter is EGL NO CONTEXT)
1636  *  eglWaitClient()
1637  *  eglWaitNative()
1638  * See section 3.7 "Rendering Context" in the EGL specification for details.
1639  */
1640 EGLBoolean EGLAPIENTRY
1641 eglBindAPI(EGLenum api)
1642 {
1643    _EGLThreadInfo *t;
1644
1645    _EGL_FUNC_START(NULL, EGL_OBJECT_THREAD_KHR, NULL, EGL_FALSE);
1646
1647    t = _eglGetCurrentThread();
1648    if (_eglIsCurrentThreadDummy())
1649       RETURN_EGL_ERROR(NULL, EGL_BAD_ALLOC, EGL_FALSE);
1650
1651    if (!_eglIsApiValid(api))
1652       RETURN_EGL_ERROR(NULL, EGL_BAD_PARAMETER, EGL_FALSE);
1653
1654    t->CurrentAPI = api;
1655
1656    RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
1657 }
1658
1659
1660 /**
1661  * Return the last value set with eglBindAPI().
1662  */
1663 EGLenum EGLAPIENTRY
1664 eglQueryAPI(void)
1665 {
1666    _EGLThreadInfo *t = _eglGetCurrentThread();
1667    EGLenum ret;
1668
1669    /* returns one of EGL_OPENGL_API, EGL_OPENGL_ES_API or EGL_OPENVG_API */
1670    ret = t->CurrentAPI;
1671
1672    RETURN_EGL_SUCCESS(NULL, ret);
1673 }
1674
1675
1676 EGLSurface EGLAPIENTRY
1677 eglCreatePbufferFromClientBuffer(EGLDisplay dpy, EGLenum buftype,
1678                                  EGLClientBuffer buffer, EGLConfig config,
1679                                  const EGLint *attrib_list)
1680 {
1681    _EGLDisplay *disp = _eglLockDisplay(dpy);
1682    _EGLConfig *conf = _eglLookupConfig(config, disp);
1683    const _EGLDriver *drv;
1684
1685    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_SURFACE);
1686
1687    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
1688
1689    /* OpenVG is not supported */
1690    RETURN_EGL_ERROR(disp, EGL_BAD_ALLOC, EGL_NO_SURFACE);
1691 }
1692
1693
1694 EGLBoolean EGLAPIENTRY
1695 eglReleaseThread(void)
1696 {
1697    /* unbind current contexts */
1698    if (!_eglIsCurrentThreadDummy()) {
1699       _EGLThreadInfo *t = _eglGetCurrentThread();
1700       _EGLContext *ctx = t->CurrentContext;
1701
1702       _EGL_FUNC_START(NULL, EGL_OBJECT_THREAD_KHR, NULL, EGL_FALSE);
1703
1704       if (ctx) {
1705          _EGLDisplay *disp = ctx->Resource.Display;
1706
1707          mtx_lock(&disp->Mutex);
1708          (void) disp->Driver->MakeCurrent(disp, NULL, NULL, NULL);
1709          mtx_unlock(&disp->Mutex);
1710       }
1711    }
1712
1713    _eglDestroyCurrentThread();
1714
1715    RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
1716 }
1717
1718
1719 static EGLImage
1720 _eglCreateImageCommon(_EGLDisplay *disp, EGLContext ctx, EGLenum target,
1721                       EGLClientBuffer buffer, const EGLint *attr_list)
1722 {
1723    _EGLContext *context = _eglLookupContext(ctx, disp);
1724    const _EGLDriver *drv;
1725    _EGLImage *img;
1726    EGLImage ret;
1727
1728    _EGL_CHECK_DISPLAY(disp, EGL_NO_IMAGE_KHR, drv);
1729    if (!disp->Extensions.KHR_image_base)
1730       RETURN_EGL_EVAL(disp, EGL_NO_IMAGE_KHR);
1731    if (!context && ctx != EGL_NO_CONTEXT)
1732       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR);
1733    /* "If <target> is EGL_LINUX_DMA_BUF_EXT, <dpy> must be a valid display,
1734     *  <ctx> must be EGL_NO_CONTEXT..."
1735     */
1736    if (ctx != EGL_NO_CONTEXT && target == EGL_LINUX_DMA_BUF_EXT)
1737       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_NO_IMAGE_KHR);
1738
1739    img = drv->CreateImageKHR(drv, disp, context, target,
1740                                  buffer, attr_list);
1741    ret = (img) ? _eglLinkImage(img) : EGL_NO_IMAGE_KHR;
1742
1743    RETURN_EGL_EVAL(disp, ret);
1744 }
1745
1746 static EGLImage EGLAPIENTRY
1747 eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
1748                   EGLClientBuffer buffer, const EGLint *attr_list)
1749 {
1750    _EGLDisplay *disp = _eglLockDisplay(dpy);
1751    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_IMAGE_KHR);
1752    return _eglCreateImageCommon(disp, ctx, target, buffer, attr_list);
1753 }
1754
1755
1756 EGLImage EGLAPIENTRY
1757 eglCreateImage(EGLDisplay dpy, EGLContext ctx, EGLenum target,
1758                EGLClientBuffer buffer, const EGLAttrib *attr_list)
1759 {
1760    _EGLDisplay *disp = _eglLockDisplay(dpy);
1761    EGLImage image;
1762    EGLint *int_attribs;
1763
1764    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_NO_IMAGE_KHR);
1765
1766    int_attribs = _eglConvertAttribsToInt(attr_list);
1767    if (attr_list && !int_attribs)
1768       RETURN_EGL_ERROR(disp, EGL_BAD_ALLOC, EGL_NO_IMAGE);
1769
1770    image = _eglCreateImageCommon(disp, ctx, target, buffer, int_attribs);
1771    free(int_attribs);
1772    return image;
1773 }
1774
1775
1776 static EGLBoolean
1777 _eglDestroyImageCommon(_EGLDisplay *disp, _EGLImage *img)
1778 {
1779    const _EGLDriver *drv;
1780    EGLBoolean ret;
1781
1782    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
1783    if (!disp->Extensions.KHR_image_base)
1784       RETURN_EGL_EVAL(disp, EGL_FALSE);
1785    if (!img)
1786       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
1787
1788    _eglUnlinkImage(img);
1789    ret = drv->DestroyImageKHR(drv, disp, img);
1790
1791    RETURN_EGL_EVAL(disp, ret);
1792 }
1793
1794 EGLBoolean EGLAPIENTRY
1795 eglDestroyImage(EGLDisplay dpy, EGLImage image)
1796 {
1797    _EGLDisplay *disp = _eglLockDisplay(dpy);
1798    _EGLImage *img = _eglLookupImage(image, disp);
1799    _EGL_FUNC_START(disp, EGL_OBJECT_IMAGE_KHR, img, EGL_FALSE);
1800    return _eglDestroyImageCommon(disp, img);
1801 }
1802
1803 static EGLBoolean EGLAPIENTRY
1804 eglDestroyImageKHR(EGLDisplay dpy, EGLImage image)
1805 {
1806    _EGLDisplay *disp = _eglLockDisplay(dpy);
1807    _EGLImage *img = _eglLookupImage(image, disp);
1808    _EGL_FUNC_START(disp, EGL_OBJECT_IMAGE_KHR, img, EGL_FALSE);
1809    return _eglDestroyImageCommon(disp, img);
1810 }
1811
1812
1813 static EGLSync
1814 _eglCreateSync(_EGLDisplay *disp, EGLenum type, const EGLAttrib *attrib_list,
1815                EGLBoolean orig_is_EGLAttrib,
1816                EGLenum invalid_type_error)
1817 {
1818    _EGLContext *ctx = _eglGetCurrentContext();
1819    const _EGLDriver *drv;
1820    _EGLSync *sync;
1821    EGLSync ret;
1822
1823    _EGL_CHECK_DISPLAY(disp, EGL_NO_SYNC_KHR, drv);
1824
1825    if (!disp->Extensions.KHR_cl_event2 && orig_is_EGLAttrib) {
1826       /* There exist two EGLAttrib variants of eglCreateSync*:
1827        * eglCreateSync64KHR which requires EGL_KHR_cl_event2, and eglCreateSync
1828        * which requires EGL 1.5. Here we use the presence of EGL_KHR_cl_event2
1829        * support as a proxy for EGL 1.5 support, even though that's not
1830        * entirely correct (though _eglComputeVersion does the same).
1831        *
1832        * The EGL spec provides no guidance on how to handle unsupported
1833        * functions. EGL_BAD_MATCH seems reasonable.
1834        */
1835       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_NO_SYNC_KHR);
1836    }
1837
1838    /* If type is EGL_SYNC_FENCE and no context is current for the bound API
1839     * (i.e., eglGetCurrentContext returns EGL_NO_CONTEXT ), an EGL_BAD_MATCH
1840     * error is generated.
1841     */
1842    if (!ctx &&
1843        (type == EGL_SYNC_FENCE_KHR || type == EGL_SYNC_NATIVE_FENCE_ANDROID))
1844       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_NO_SYNC_KHR);
1845
1846    /* return an error if the client API doesn't support GL_[OES|MESA]_EGL_sync. */
1847    if (ctx && (ctx->Resource.Display != disp ||
1848                (ctx->ClientAPI != EGL_OPENGL_ES_API &&
1849                 ctx->ClientAPI != EGL_OPENGL_API)))
1850       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_NO_SYNC_KHR);
1851
1852    switch (type) {
1853    case EGL_SYNC_FENCE_KHR:
1854       if (!disp->Extensions.KHR_fence_sync)
1855          RETURN_EGL_ERROR(disp, invalid_type_error, EGL_NO_SYNC_KHR);
1856       break;
1857    case EGL_SYNC_REUSABLE_KHR:
1858       if (!disp->Extensions.KHR_reusable_sync)
1859          RETURN_EGL_ERROR(disp, invalid_type_error, EGL_NO_SYNC_KHR);
1860       break;
1861    case EGL_SYNC_CL_EVENT_KHR:
1862       if (!disp->Extensions.KHR_cl_event2)
1863          RETURN_EGL_ERROR(disp, invalid_type_error, EGL_NO_SYNC_KHR);
1864       break;
1865    case EGL_SYNC_NATIVE_FENCE_ANDROID:
1866       if (!disp->Extensions.ANDROID_native_fence_sync)
1867          RETURN_EGL_ERROR(disp, invalid_type_error, EGL_NO_SYNC_KHR);
1868       break;
1869    default:
1870       RETURN_EGL_ERROR(disp, invalid_type_error, EGL_NO_SYNC_KHR);
1871    }
1872
1873    sync = drv->CreateSyncKHR(drv, disp, type, attrib_list);
1874    ret = (sync) ? _eglLinkSync(sync) : EGL_NO_SYNC_KHR;
1875
1876    RETURN_EGL_EVAL(disp, ret);
1877 }
1878
1879
1880 static EGLSync EGLAPIENTRY
1881 eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *int_list)
1882 {
1883    _EGLDisplay *disp = _eglLockDisplay(dpy);
1884    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
1885
1886    EGLSync sync;
1887    EGLAttrib *attrib_list;
1888    EGLint err;
1889
1890    if (sizeof(int_list[0]) == sizeof(attrib_list[0])) {
1891       attrib_list = (EGLAttrib *) int_list;
1892    } else {
1893       err = _eglConvertIntsToAttribs(int_list, &attrib_list);
1894       if (err != EGL_SUCCESS)
1895          RETURN_EGL_ERROR(disp, err, EGL_NO_SYNC);
1896    }
1897
1898    sync = _eglCreateSync(disp, type, attrib_list, EGL_FALSE,
1899                          EGL_BAD_ATTRIBUTE);
1900
1901    if (sizeof(int_list[0]) != sizeof(attrib_list[0]))
1902       free(attrib_list);
1903
1904    /* Don't double-unlock the display. _eglCreateSync already unlocked it. */
1905    return sync;
1906 }
1907
1908
1909 static EGLSync EGLAPIENTRY
1910 eglCreateSync64KHR(EGLDisplay dpy, EGLenum type, const EGLAttrib *attrib_list)
1911 {
1912    _EGLDisplay *disp = _eglLockDisplay(dpy);
1913    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
1914    return _eglCreateSync(disp, type, attrib_list, EGL_TRUE,
1915                          EGL_BAD_ATTRIBUTE);
1916 }
1917
1918
1919 EGLSync EGLAPIENTRY
1920 eglCreateSync(EGLDisplay dpy, EGLenum type, const EGLAttrib *attrib_list)
1921 {
1922    _EGLDisplay *disp = _eglLockDisplay(dpy);
1923    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
1924    return _eglCreateSync(disp, type, attrib_list, EGL_TRUE,
1925                          EGL_BAD_PARAMETER);
1926 }
1927
1928
1929 static EGLBoolean
1930 _eglDestroySync(_EGLDisplay *disp, _EGLSync *s)
1931 {
1932    const _EGLDriver *drv;
1933    EGLBoolean ret;
1934
1935    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
1936    assert(disp->Extensions.KHR_reusable_sync ||
1937           disp->Extensions.KHR_fence_sync ||
1938           disp->Extensions.ANDROID_native_fence_sync);
1939
1940    _eglUnlinkSync(s);
1941    ret = drv->DestroySyncKHR(drv, disp, s);
1942
1943    RETURN_EGL_EVAL(disp, ret);
1944 }
1945
1946 EGLBoolean EGLAPIENTRY
1947 eglDestroySync(EGLDisplay dpy, EGLSync sync)
1948 {
1949    _EGLDisplay *disp = _eglLockDisplay(dpy);
1950    _EGLSync *s = _eglLookupSync(sync, disp);
1951    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
1952    return _eglDestroySync(disp, s);
1953 }
1954
1955 static EGLBoolean EGLAPIENTRY
1956 eglDestroySyncKHR(EGLDisplay dpy, EGLSync sync)
1957 {
1958    _EGLDisplay *disp = _eglLockDisplay(dpy);
1959    _EGLSync *s = _eglLookupSync(sync, disp);
1960    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
1961    return _eglDestroySync(disp, s);
1962 }
1963
1964
1965 static EGLint
1966 _eglClientWaitSyncCommon(_EGLDisplay *disp, EGLDisplay dpy,
1967                          _EGLSync *s, EGLint flags, EGLTime timeout)
1968 {
1969    const _EGLDriver *drv;
1970    EGLint ret;
1971
1972    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
1973    assert(disp->Extensions.KHR_reusable_sync ||
1974           disp->Extensions.KHR_fence_sync ||
1975           disp->Extensions.ANDROID_native_fence_sync);
1976
1977    if (s->SyncStatus == EGL_SIGNALED_KHR)
1978       RETURN_EGL_EVAL(disp, EGL_CONDITION_SATISFIED_KHR);
1979
1980    /* if sync type is EGL_SYNC_REUSABLE_KHR, dpy should be
1981     * unlocked here to allow other threads also to be able to
1982     * go into waiting state.
1983     */
1984
1985    if (s->Type == EGL_SYNC_REUSABLE_KHR)
1986       _eglUnlockDisplay(dpy);
1987
1988    ret = drv->ClientWaitSyncKHR(drv, disp, s, flags, timeout);
1989
1990    /*
1991     * 'disp' is already unlocked for reusable sync type,
1992     * so passing 'NULL' to bypass unlocking display.
1993     */
1994    if (s->Type == EGL_SYNC_REUSABLE_KHR)
1995       RETURN_EGL_EVAL(NULL, ret);
1996    else
1997       RETURN_EGL_EVAL(disp, ret);
1998 }
1999
2000 EGLint EGLAPIENTRY
2001 eglClientWaitSync(EGLDisplay dpy, EGLSync sync,
2002                   EGLint flags, EGLTime timeout)
2003 {
2004    _EGLDisplay *disp = _eglLockDisplay(dpy);
2005    _EGLSync *s = _eglLookupSync(sync, disp);
2006    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2007    return _eglClientWaitSyncCommon(disp, dpy, s, flags, timeout);
2008 }
2009
2010 static EGLint EGLAPIENTRY
2011 eglClientWaitSyncKHR(EGLDisplay dpy, EGLSync sync,
2012                      EGLint flags, EGLTime timeout)
2013 {
2014    _EGLDisplay *disp = _eglLockDisplay(dpy);
2015    _EGLSync *s = _eglLookupSync(sync, disp);
2016    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2017    return _eglClientWaitSyncCommon(disp, dpy, s, flags, timeout);
2018 }
2019
2020
2021 static EGLint
2022 _eglWaitSyncCommon(_EGLDisplay *disp, _EGLSync *s, EGLint flags)
2023 {
2024    _EGLContext *ctx = _eglGetCurrentContext();
2025    const _EGLDriver *drv;
2026    EGLint ret;
2027
2028    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
2029    assert(disp->Extensions.KHR_wait_sync);
2030
2031    /* return an error if the client API doesn't support GL_[OES|MESA]_EGL_sync. */
2032    if (ctx == EGL_NO_CONTEXT ||
2033          (ctx->ClientAPI != EGL_OPENGL_ES_API &&
2034           ctx->ClientAPI != EGL_OPENGL_API))
2035       RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_FALSE);
2036
2037    /* the API doesn't allow any flags yet */
2038    if (flags != 0)
2039       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2040
2041    ret = drv->WaitSyncKHR(drv, disp, s);
2042
2043    RETURN_EGL_EVAL(disp, ret);
2044 }
2045
2046 static EGLint EGLAPIENTRY
2047 eglWaitSyncKHR(EGLDisplay dpy, EGLSync sync, EGLint flags)
2048 {
2049    _EGLDisplay *disp = _eglLockDisplay(dpy);
2050    _EGLSync *s = _eglLookupSync(sync, disp);
2051    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2052    return _eglWaitSyncCommon(disp, s, flags);
2053 }
2054
2055
2056 EGLBoolean EGLAPIENTRY
2057 eglWaitSync(EGLDisplay dpy, EGLSync sync, EGLint flags)
2058 {
2059    /* The KHR version returns EGLint, while the core version returns
2060     * EGLBoolean. In both cases, the return values can only be EGL_FALSE and
2061     * EGL_TRUE.
2062     */
2063    _EGLDisplay *disp = _eglLockDisplay(dpy);
2064    _EGLSync *s = _eglLookupSync(sync, disp);
2065    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2066    return _eglWaitSyncCommon(disp, s, flags);
2067 }
2068
2069
2070 static EGLBoolean EGLAPIENTRY
2071 eglSignalSyncKHR(EGLDisplay dpy, EGLSync sync, EGLenum mode)
2072 {
2073    _EGLDisplay *disp = _eglLockDisplay(dpy);
2074    _EGLSync *s = _eglLookupSync(sync, disp);
2075    const _EGLDriver *drv;
2076    EGLBoolean ret;
2077
2078    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2079
2080    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
2081    assert(disp->Extensions.KHR_reusable_sync);
2082    ret = drv->SignalSyncKHR(drv, disp, s, mode);
2083
2084    RETURN_EGL_EVAL(disp, ret);
2085 }
2086
2087
2088 static EGLBoolean
2089 _eglGetSyncAttribCommon(_EGLDisplay *disp, _EGLSync *s, EGLint attribute, EGLAttrib *value)
2090 {
2091    const _EGLDriver *drv;
2092    EGLBoolean ret;
2093
2094    _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
2095    assert(disp->Extensions.KHR_reusable_sync ||
2096           disp->Extensions.KHR_fence_sync ||
2097           disp->Extensions.ANDROID_native_fence_sync);
2098
2099    ret = _eglGetSyncAttrib(drv, disp, s, attribute, value);
2100
2101    RETURN_EGL_EVAL(disp, ret);
2102 }
2103
2104 EGLBoolean EGLAPIENTRY
2105 eglGetSyncAttrib(EGLDisplay dpy, EGLSync sync, EGLint attribute, EGLAttrib *value)
2106 {
2107    _EGLDisplay *disp = _eglLockDisplay(dpy);
2108    _EGLSync *s = _eglLookupSync(sync, disp);
2109    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2110
2111    if (!value)
2112       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2113
2114    return _eglGetSyncAttribCommon(disp, s, attribute, value);
2115 }
2116
2117
2118 static EGLBoolean EGLAPIENTRY
2119 eglGetSyncAttribKHR(EGLDisplay dpy, EGLSync sync, EGLint attribute, EGLint *value)
2120 {
2121    _EGLDisplay *disp = _eglLockDisplay(dpy);
2122    _EGLSync *s = _eglLookupSync(sync, disp);
2123    EGLAttrib attrib;
2124    EGLBoolean result;
2125
2126    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2127
2128    if (!value)
2129       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2130
2131    attrib = *value;
2132    result = _eglGetSyncAttribCommon(disp, s, attribute, &attrib);
2133
2134    /* The EGL_KHR_fence_sync spec says this about eglGetSyncAttribKHR:
2135     *
2136     *    If any error occurs, <*value> is not modified.
2137     */
2138    if (result == EGL_FALSE)
2139       return result;
2140
2141    *value = attrib;
2142    return result;
2143 }
2144
2145 static EGLint EGLAPIENTRY
2146 eglDupNativeFenceFDANDROID(EGLDisplay dpy, EGLSync sync)
2147 {
2148    _EGLDisplay *disp = _eglLockDisplay(dpy);
2149    _EGLSync *s = _eglLookupSync(sync, disp);
2150    const _EGLDriver *drv;
2151    EGLBoolean ret;
2152
2153    _EGL_FUNC_START(disp, EGL_OBJECT_SYNC_KHR, s, EGL_FALSE);
2154
2155    /* the spec doesn't seem to specify what happens if the fence
2156     * type is not EGL_SYNC_NATIVE_FENCE_ANDROID, but this seems
2157     * sensible:
2158     */
2159    if (!(s && (s->Type == EGL_SYNC_NATIVE_FENCE_ANDROID)))
2160       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_NO_NATIVE_FENCE_FD_ANDROID);
2161
2162    _EGL_CHECK_SYNC(disp, s, EGL_NO_NATIVE_FENCE_FD_ANDROID, drv);
2163    assert(disp->Extensions.ANDROID_native_fence_sync);
2164    ret = drv->DupNativeFenceFDANDROID(drv, disp, s);
2165
2166    RETURN_EGL_EVAL(disp, ret);
2167 }
2168
2169 static EGLBoolean EGLAPIENTRY
2170 eglSwapBuffersRegionNOK(EGLDisplay dpy, EGLSurface surface,
2171                         EGLint numRects, const EGLint *rects)
2172 {
2173    _EGLContext *ctx = _eglGetCurrentContext();
2174    _EGLDisplay *disp = _eglLockDisplay(dpy);
2175    _EGLSurface *surf = _eglLookupSurface(surface, disp);
2176    const _EGLDriver *drv;
2177    EGLBoolean ret;
2178
2179    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
2180
2181    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
2182
2183    if (!disp->Extensions.NOK_swap_region)
2184       RETURN_EGL_EVAL(disp, EGL_FALSE);
2185
2186    /* surface must be bound to current context in EGL 1.4 */
2187    if (_eglGetContextHandle(ctx) == EGL_NO_CONTEXT ||
2188        surf != ctx->DrawSurface)
2189       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
2190
2191    ret = drv->SwapBuffersRegionNOK(disp, surf, numRects, rects);
2192
2193    RETURN_EGL_EVAL(disp, ret);
2194 }
2195
2196
2197 static EGLImage EGLAPIENTRY
2198 eglCreateDRMImageMESA(EGLDisplay dpy, const EGLint *attr_list)
2199 {
2200    _EGLDisplay *disp = _eglLockDisplay(dpy);
2201    const _EGLDriver *drv;
2202    _EGLImage *img;
2203    EGLImage ret;
2204
2205    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
2206
2207    _EGL_CHECK_DISPLAY(disp, EGL_NO_IMAGE_KHR, drv);
2208    if (!disp->Extensions.MESA_drm_image)
2209       RETURN_EGL_EVAL(disp, EGL_NO_IMAGE_KHR);
2210
2211    img = drv->CreateDRMImageMESA(drv, disp, attr_list);
2212    ret = (img) ? _eglLinkImage(img) : EGL_NO_IMAGE_KHR;
2213
2214    RETURN_EGL_EVAL(disp, ret);
2215 }
2216
2217 static EGLBoolean EGLAPIENTRY
2218 eglExportDRMImageMESA(EGLDisplay dpy, EGLImage image,
2219                       EGLint *name, EGLint *handle, EGLint *stride)
2220 {
2221    _EGLDisplay *disp = _eglLockDisplay(dpy);
2222    _EGLImage *img = _eglLookupImage(image, disp);
2223    const _EGLDriver *drv;
2224    EGLBoolean ret;
2225
2226    _EGL_FUNC_START(disp, EGL_OBJECT_IMAGE_KHR, img, EGL_FALSE);
2227
2228    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2229    assert(disp->Extensions.MESA_drm_image);
2230
2231    if (!img)
2232       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2233
2234    ret = drv->ExportDRMImageMESA(drv, disp, img, name, handle, stride);
2235
2236    RETURN_EGL_EVAL(disp, ret);
2237 }
2238
2239
2240 struct wl_display;
2241
2242 static EGLBoolean EGLAPIENTRY
2243 eglBindWaylandDisplayWL(EGLDisplay dpy, struct wl_display *display)
2244 {
2245    _EGLDisplay *disp = _eglLockDisplay(dpy);
2246    const _EGLDriver *drv;
2247    EGLBoolean ret;
2248
2249    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
2250
2251    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2252    assert(disp->Extensions.WL_bind_wayland_display);
2253
2254    if (!display)
2255       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2256
2257    ret = drv->BindWaylandDisplayWL(drv, disp, display);
2258
2259    RETURN_EGL_EVAL(disp, ret);
2260 }
2261
2262 static EGLBoolean EGLAPIENTRY
2263 eglUnbindWaylandDisplayWL(EGLDisplay dpy, struct wl_display *display)
2264 {
2265    _EGLDisplay *disp = _eglLockDisplay(dpy);
2266    const _EGLDriver *drv;
2267    EGLBoolean ret;
2268
2269    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
2270
2271    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2272    assert(disp->Extensions.WL_bind_wayland_display);
2273
2274    if (!display)
2275       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2276
2277    ret = drv->UnbindWaylandDisplayWL(drv, disp, display);
2278
2279    RETURN_EGL_EVAL(disp, ret);
2280 }
2281
2282 static EGLBoolean EGLAPIENTRY
2283 eglQueryWaylandBufferWL(EGLDisplay dpy, struct wl_resource *buffer,
2284                         EGLint attribute, EGLint *value)
2285 {
2286    _EGLDisplay *disp = _eglLockDisplay(dpy);
2287    const _EGLDriver *drv;
2288    EGLBoolean ret;
2289
2290    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
2291
2292    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2293    assert(disp->Extensions.WL_bind_wayland_display);
2294
2295    if (!buffer)
2296       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2297
2298    ret = drv->QueryWaylandBufferWL(drv, disp, buffer, attribute, value);
2299
2300    RETURN_EGL_EVAL(disp, ret);
2301 }
2302
2303
2304 static struct wl_buffer * EGLAPIENTRY
2305 eglCreateWaylandBufferFromImageWL(EGLDisplay dpy, EGLImage image)
2306 {
2307    _EGLDisplay *disp = _eglLockDisplay(dpy);
2308    _EGLImage *img;
2309    const _EGLDriver *drv;
2310    struct wl_buffer *ret;
2311
2312    _EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL, EGL_FALSE);
2313
2314    _EGL_CHECK_DISPLAY(disp, NULL, drv);
2315    if (!disp->Extensions.WL_create_wayland_buffer_from_image)
2316       RETURN_EGL_EVAL(disp, NULL);
2317
2318    img = _eglLookupImage(image, disp);
2319
2320    if (!img)
2321       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, NULL);
2322
2323    ret = drv->CreateWaylandBufferFromImageWL(drv, disp, img);
2324
2325    RETURN_EGL_EVAL(disp, ret);
2326 }
2327
2328 static EGLBoolean EGLAPIENTRY
2329 eglPostSubBufferNV(EGLDisplay dpy, EGLSurface surface,
2330                    EGLint x, EGLint y, EGLint width, EGLint height)
2331 {
2332    _EGLDisplay *disp = _eglLockDisplay(dpy);
2333    _EGLSurface *surf = _eglLookupSurface(surface, disp);
2334    const _EGLDriver *drv;
2335    EGLBoolean ret;
2336
2337    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
2338
2339    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
2340
2341    if (!disp->Extensions.NV_post_sub_buffer)
2342       RETURN_EGL_EVAL(disp, EGL_FALSE);
2343
2344    ret = drv->PostSubBufferNV(drv, disp, surf, x, y, width, height);
2345
2346    RETURN_EGL_EVAL(disp, ret);
2347 }
2348
2349 static EGLBoolean EGLAPIENTRY
2350 eglGetSyncValuesCHROMIUM(EGLDisplay dpy, EGLSurface surface,
2351                          EGLuint64KHR *ust, EGLuint64KHR *msc,
2352                          EGLuint64KHR *sbc)
2353 {
2354    _EGLDisplay *disp = _eglLockDisplay(dpy);
2355    _EGLSurface *surf = _eglLookupSurface(surface, disp);
2356    const _EGLDriver *drv;
2357    EGLBoolean ret;
2358
2359    _EGL_FUNC_START(disp, EGL_OBJECT_SURFACE_KHR, surf, EGL_FALSE);
2360
2361    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
2362    if (!disp->Extensions.CHROMIUM_sync_control)
2363       RETURN_EGL_EVAL(disp, EGL_FALSE);
2364
2365    if (!ust || !msc || !sbc)
2366       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2367
2368    ret = drv->GetSyncValuesCHROMIUM(disp, surf, ust, msc, sbc);
2369
2370    RETURN_EGL_EVAL(disp, ret);
2371 }
2372
2373 static EGLBoolean EGLAPIENTRY
2374 eglExportDMABUFImageQueryMESA(EGLDisplay dpy, EGLImage image,
2375                               EGLint *fourcc, EGLint *nplanes,
2376                               EGLuint64KHR *modifiers)
2377 {
2378    _EGLDisplay *disp = _eglLockDisplay(dpy);
2379    _EGLImage *img = _eglLookupImage(image, disp);
2380    const _EGLDriver *drv;
2381    EGLBoolean ret;
2382
2383    _EGL_FUNC_START(disp, EGL_OBJECT_IMAGE_KHR, img, EGL_FALSE);
2384
2385    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2386    assert(disp->Extensions.MESA_image_dma_buf_export);
2387
2388    if (!img)
2389       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2390
2391    ret = drv->ExportDMABUFImageQueryMESA(drv, disp, img, fourcc, nplanes,
2392                                              modifiers);
2393
2394    RETURN_EGL_EVAL(disp, ret);
2395 }
2396
2397 static EGLBoolean EGLAPIENTRY
2398 eglExportDMABUFImageMESA(EGLDisplay dpy, EGLImage image,
2399                          int *fds, EGLint *strides, EGLint *offsets)
2400 {
2401    _EGLDisplay *disp = _eglLockDisplay(dpy);
2402    _EGLImage *img = _eglLookupImage(image, disp);
2403    const _EGLDriver *drv;
2404    EGLBoolean ret;
2405
2406    _EGL_FUNC_START(disp, EGL_OBJECT_IMAGE_KHR, img, EGL_FALSE);
2407
2408    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2409    assert(disp->Extensions.MESA_image_dma_buf_export);
2410
2411    if (!img)
2412       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
2413
2414    ret = drv->ExportDMABUFImageMESA(drv, disp, img, fds, strides, offsets);
2415
2416    RETURN_EGL_EVAL(disp, ret);
2417 }
2418
2419 static EGLint EGLAPIENTRY
2420 eglLabelObjectKHR(EGLDisplay dpy, EGLenum objectType, EGLObjectKHR object,
2421                   EGLLabelKHR label)
2422 {
2423    _EGLDisplay *disp = NULL;
2424    _EGLResourceType type;
2425
2426    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_BAD_ALLOC);
2427
2428    if (objectType == EGL_OBJECT_THREAD_KHR) {
2429       _EGLThreadInfo *t = _eglGetCurrentThread();
2430
2431       if (!_eglIsCurrentThreadDummy()) {
2432          t->Label = label;
2433          return EGL_SUCCESS;
2434       }
2435
2436       RETURN_EGL_ERROR(NULL, EGL_BAD_ALLOC, EGL_BAD_ALLOC);
2437    }
2438
2439    disp = _eglLockDisplay(dpy);
2440    if (disp == NULL)
2441       RETURN_EGL_ERROR(disp, EGL_BAD_DISPLAY, EGL_BAD_DISPLAY);
2442
2443    if (objectType == EGL_OBJECT_DISPLAY_KHR) {
2444       if (dpy != (EGLDisplay) object)
2445          RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_BAD_PARAMETER);
2446
2447       disp->Label = label;
2448       RETURN_EGL_EVAL(disp, EGL_SUCCESS);
2449    }
2450
2451    switch (objectType) {
2452       case EGL_OBJECT_CONTEXT_KHR:
2453          type = _EGL_RESOURCE_CONTEXT;
2454          break;
2455       case EGL_OBJECT_SURFACE_KHR:
2456          type = _EGL_RESOURCE_SURFACE;
2457          break;
2458       case EGL_OBJECT_IMAGE_KHR:
2459          type = _EGL_RESOURCE_IMAGE;
2460          break;
2461       case EGL_OBJECT_SYNC_KHR:
2462          type = _EGL_RESOURCE_SYNC;
2463          break;
2464       case EGL_OBJECT_STREAM_KHR:
2465       default:
2466          RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_BAD_PARAMETER);
2467    }
2468
2469    if (_eglCheckResource(object, type, disp)) {
2470       _EGLResource *res = (_EGLResource *) object;
2471
2472       res->Label = label;
2473       RETURN_EGL_EVAL(disp, EGL_SUCCESS);
2474    }
2475
2476    RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_BAD_PARAMETER);
2477 }
2478
2479 static EGLint EGLAPIENTRY
2480 eglDebugMessageControlKHR(EGLDEBUGPROCKHR callback,
2481                           const EGLAttrib *attrib_list)
2482 {
2483    unsigned int newEnabled;
2484
2485    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_BAD_ALLOC);
2486
2487    mtx_lock(_eglGlobal.Mutex);
2488
2489    newEnabled = _eglGlobal.debugTypesEnabled;
2490    if (attrib_list != NULL) {
2491       int i;
2492
2493       for (i = 0; attrib_list[i] != EGL_NONE; i += 2) {
2494          switch (attrib_list[i]) {
2495          case EGL_DEBUG_MSG_CRITICAL_KHR:
2496          case EGL_DEBUG_MSG_ERROR_KHR:
2497          case EGL_DEBUG_MSG_WARN_KHR:
2498          case EGL_DEBUG_MSG_INFO_KHR:
2499             if (attrib_list[i + 1])
2500                newEnabled |= DebugBitFromType(attrib_list[i]);
2501             else
2502                newEnabled &= ~DebugBitFromType(attrib_list[i]);
2503             break;
2504          default:
2505             // On error, set the last error code, call the current
2506             // debug callback, and return the error code.
2507             mtx_unlock(_eglGlobal.Mutex);
2508             _eglReportError(EGL_BAD_ATTRIBUTE, NULL,
2509                   "Invalid attribute 0x%04lx", (unsigned long) attrib_list[i]);
2510             return EGL_BAD_ATTRIBUTE;
2511          }
2512       }
2513    }
2514
2515    if (callback != NULL) {
2516       _eglGlobal.debugCallback = callback;
2517       _eglGlobal.debugTypesEnabled = newEnabled;
2518    } else {
2519       _eglGlobal.debugCallback = NULL;
2520       _eglGlobal.debugTypesEnabled = _EGL_DEBUG_BIT_CRITICAL | _EGL_DEBUG_BIT_ERROR;
2521    }
2522
2523    mtx_unlock(_eglGlobal.Mutex);
2524    return EGL_SUCCESS;
2525 }
2526
2527 static EGLBoolean EGLAPIENTRY
2528 eglQueryDebugKHR(EGLint attribute, EGLAttrib *value)
2529 {
2530    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_BAD_ALLOC);
2531
2532    mtx_lock(_eglGlobal.Mutex);
2533
2534    switch (attribute) {
2535    case EGL_DEBUG_MSG_CRITICAL_KHR:
2536    case EGL_DEBUG_MSG_ERROR_KHR:
2537    case EGL_DEBUG_MSG_WARN_KHR:
2538    case EGL_DEBUG_MSG_INFO_KHR:
2539       if (_eglGlobal.debugTypesEnabled & DebugBitFromType(attribute))
2540          *value = EGL_TRUE;
2541       else
2542          *value = EGL_FALSE;
2543       break;
2544    case EGL_DEBUG_CALLBACK_KHR:
2545       *value = (EGLAttrib) _eglGlobal.debugCallback;
2546       break;
2547    default:
2548       mtx_unlock(_eglGlobal.Mutex);
2549       _eglReportError(EGL_BAD_ATTRIBUTE, NULL,
2550                       "Invalid attribute 0x%04lx", (unsigned long) attribute);
2551       return EGL_FALSE;
2552    }
2553
2554    mtx_unlock(_eglGlobal.Mutex);
2555    return EGL_TRUE;
2556 }
2557
2558 static int
2559 _eglFunctionCompare(const void *key, const void *elem)
2560 {
2561    const char *procname = key;
2562    const struct _egl_entrypoint *entrypoint = elem;
2563    return strcmp(procname, entrypoint->name);
2564 }
2565
2566 static EGLBoolean EGLAPIENTRY
2567 eglQueryDmaBufFormatsEXT(EGLDisplay dpy, EGLint max_formats,
2568                          EGLint *formats, EGLint *num_formats)
2569 {
2570    _EGLDisplay *disp = _eglLockDisplay(dpy);
2571    const _EGLDriver *drv;
2572    EGLBoolean ret;
2573
2574    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_FALSE);
2575
2576    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2577
2578    ret = drv->QueryDmaBufFormatsEXT(drv, disp, max_formats, formats,
2579                                         num_formats);
2580
2581    RETURN_EGL_EVAL(disp, ret);
2582 }
2583
2584 static EGLBoolean EGLAPIENTRY
2585 eglQueryDmaBufModifiersEXT(EGLDisplay dpy, EGLint format, EGLint max_modifiers,
2586                            EGLuint64KHR *modifiers, EGLBoolean *external_only,
2587                            EGLint *num_modifiers)
2588 {
2589    _EGLDisplay *disp = _eglLockDisplay(dpy);
2590    const _EGLDriver *drv;
2591    EGLBoolean ret;
2592
2593    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_FALSE);
2594
2595    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2596
2597    ret = drv->QueryDmaBufModifiersEXT(drv, disp, format, max_modifiers,
2598                                           modifiers, external_only,
2599                                           num_modifiers);
2600
2601    RETURN_EGL_EVAL(disp, ret);
2602 }
2603
2604 static void EGLAPIENTRY
2605 eglSetBlobCacheFuncsANDROID(EGLDisplay *dpy, EGLSetBlobFuncANDROID set,
2606                             EGLGetBlobFuncANDROID get)
2607 {
2608    /* This function does not return anything so we cannot
2609     * utilize the helper macros _EGL_FUNC_START or _EGL_CHECK_DISPLAY.
2610     */
2611    _EGLDisplay *disp = _eglLockDisplay(dpy);
2612    if (!_eglSetFuncName(__func__, disp, EGL_OBJECT_DISPLAY_KHR, NULL)) {
2613       if (disp)
2614          _eglUnlockDisplay(disp);
2615       return;
2616    }
2617
2618    const _EGLDriver *drv = _eglCheckDisplay(disp, __func__);
2619    if (!drv) {
2620       if (disp)
2621          _eglUnlockDisplay(disp);
2622       return;
2623    }
2624
2625    if (!set || !get) {
2626       _eglError(EGL_BAD_PARAMETER,
2627                 "eglSetBlobCacheFuncsANDROID: NULL handler given");
2628       _eglUnlockDisplay(disp);
2629       return;
2630    }
2631
2632    if (disp->BlobCacheSet) {
2633       _eglError(EGL_BAD_PARAMETER,
2634                 "eglSetBlobCacheFuncsANDROID: functions already set");
2635       _eglUnlockDisplay(disp);
2636       return;
2637    }
2638
2639    disp->BlobCacheSet = set;
2640    disp->BlobCacheGet = get;
2641
2642    drv->SetBlobCacheFuncsANDROID(drv, disp, set, get);
2643
2644    _eglUnlockDisplay(disp);
2645 }
2646
2647 static EGLBoolean EGLAPIENTRY
2648 eglQueryDeviceAttribEXT(EGLDeviceEXT device,
2649                         EGLint attribute,
2650                         EGLAttrib *value)
2651 {
2652    _EGLDevice *dev = _eglLookupDevice(device);
2653    EGLBoolean ret;
2654
2655    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_FALSE);
2656    if (!dev)
2657       RETURN_EGL_ERROR(NULL, EGL_BAD_DEVICE_EXT, EGL_FALSE);
2658
2659    ret = _eglQueryDeviceAttribEXT(dev, attribute, value);
2660    RETURN_EGL_EVAL(NULL, ret);
2661 }
2662
2663 static const char * EGLAPIENTRY
2664 eglQueryDeviceStringEXT(EGLDeviceEXT device,
2665                         EGLint name)
2666 {
2667    _EGLDevice *dev = _eglLookupDevice(device);
2668
2669    _EGL_FUNC_START(NULL, EGL_NONE, NULL, NULL);
2670    if (!dev)
2671       RETURN_EGL_ERROR(NULL, EGL_BAD_DEVICE_EXT, NULL);
2672
2673    RETURN_EGL_EVAL(NULL, _eglQueryDeviceStringEXT(dev, name));
2674 }
2675
2676 static EGLBoolean EGLAPIENTRY
2677 eglQueryDevicesEXT(EGLint max_devices,
2678                    EGLDeviceEXT *devices,
2679                    EGLint *num_devices)
2680 {
2681    EGLBoolean ret;
2682
2683    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_FALSE);
2684    ret = _eglQueryDevicesEXT(max_devices, (_EGLDevice **) devices,
2685                              num_devices);
2686    RETURN_EGL_EVAL(NULL, ret);
2687 }
2688
2689 static EGLBoolean EGLAPIENTRY
2690 eglQueryDisplayAttribEXT(EGLDisplay dpy,
2691                          EGLint attribute,
2692                          EGLAttrib *value)
2693 {
2694    _EGLDisplay *disp = _eglLockDisplay(dpy);
2695    const _EGLDriver *drv;
2696
2697    _EGL_FUNC_START(NULL, EGL_NONE, NULL, EGL_FALSE);
2698    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
2699
2700    switch (attribute) {
2701    case EGL_DEVICE_EXT:
2702       *value = (EGLAttrib) disp->Device;
2703       break;
2704    default:
2705       RETURN_EGL_ERROR(disp, EGL_BAD_ATTRIBUTE, EGL_FALSE);
2706    }
2707    RETURN_EGL_SUCCESS(disp, EGL_TRUE);
2708 }
2709
2710 static char * EGLAPIENTRY
2711 eglGetDisplayDriverConfig(EGLDisplay dpy)
2712 {
2713     _EGLDisplay *disp = _eglLockDisplay(dpy);
2714     const _EGLDriver *drv;
2715     char *ret;
2716
2717     _EGL_FUNC_START(disp, EGL_NONE, NULL, NULL);
2718     _EGL_CHECK_DISPLAY(disp, NULL, drv);
2719
2720     assert(disp->Extensions.MESA_query_driver);
2721
2722     ret = drv->QueryDriverConfig(disp);
2723     RETURN_EGL_EVAL(disp, ret);
2724 }
2725
2726 static const char * EGLAPIENTRY
2727 eglGetDisplayDriverName(EGLDisplay dpy)
2728 {
2729     _EGLDisplay *disp = _eglLockDisplay(dpy);
2730     const _EGLDriver *drv;
2731     const char *ret;
2732
2733     _EGL_FUNC_START(disp, EGL_NONE, NULL, NULL);
2734     _EGL_CHECK_DISPLAY(disp, NULL, drv);
2735
2736     assert(disp->Extensions.MESA_query_driver);
2737
2738     ret = drv->QueryDriverName(disp);
2739     RETURN_EGL_EVAL(disp, ret);
2740 }
2741
2742 __eglMustCastToProperFunctionPointerType EGLAPIENTRY
2743 eglGetProcAddress(const char *procname)
2744 {
2745    static const struct _egl_entrypoint egl_functions[] = {
2746 #define EGL_ENTRYPOINT(f) { .name = #f, .function = (_EGLProc) f },
2747 #include "eglentrypoint.h"
2748 #undef EGL_ENTRYPOINT
2749    };
2750    _EGLProc ret = NULL;
2751
2752    if (!procname)
2753       RETURN_EGL_SUCCESS(NULL, NULL);
2754
2755    _EGL_FUNC_START(NULL, EGL_NONE, NULL, NULL);
2756
2757    if (strncmp(procname, "egl", 3) == 0) {
2758       const struct _egl_entrypoint *entrypoint =
2759          bsearch(procname,
2760                  egl_functions, ARRAY_SIZE(egl_functions),
2761                  sizeof(egl_functions[0]),
2762                  _eglFunctionCompare);
2763       if (entrypoint)
2764          ret = entrypoint->function;
2765    }
2766
2767    if (!ret)
2768       ret = _eglGetDriverProc(procname);
2769
2770    RETURN_EGL_SUCCESS(NULL, ret);
2771 }
2772
2773 static int
2774 _eglLockDisplayInterop(EGLDisplay dpy, EGLContext context,
2775                        _EGLDisplay **disp, const _EGLDriver **drv,
2776                        _EGLContext **ctx)
2777 {
2778
2779    *disp = _eglLockDisplay(dpy);
2780    if (!*disp || !(*disp)->Initialized || !(*disp)->Driver) {
2781       if (*disp)
2782          _eglUnlockDisplay(*disp);
2783       return MESA_GLINTEROP_INVALID_DISPLAY;
2784    }
2785
2786    *drv = (*disp)->Driver;
2787
2788    *ctx = _eglLookupContext(context, *disp);
2789    if (!*ctx ||
2790        ((*ctx)->ClientAPI != EGL_OPENGL_API &&
2791         (*ctx)->ClientAPI != EGL_OPENGL_ES_API)) {
2792       _eglUnlockDisplay(*disp);
2793       return MESA_GLINTEROP_INVALID_CONTEXT;
2794    }
2795
2796    return MESA_GLINTEROP_SUCCESS;
2797 }
2798
2799 PUBLIC int
2800 MesaGLInteropEGLQueryDeviceInfo(EGLDisplay dpy, EGLContext context,
2801                                 struct mesa_glinterop_device_info *out)
2802 {
2803    _EGLDisplay *disp;
2804    const _EGLDriver *drv;
2805    _EGLContext *ctx;
2806    int ret;
2807
2808    ret = _eglLockDisplayInterop(dpy, context, &disp, &drv, &ctx);
2809    if (ret != MESA_GLINTEROP_SUCCESS)
2810       return ret;
2811
2812    if (drv->GLInteropQueryDeviceInfo)
2813       ret = drv->GLInteropQueryDeviceInfo(disp, ctx, out);
2814    else
2815       ret = MESA_GLINTEROP_UNSUPPORTED;
2816
2817    _eglUnlockDisplay(disp);
2818    return ret;
2819 }
2820
2821 PUBLIC int
2822 MesaGLInteropEGLExportObject(EGLDisplay dpy, EGLContext context,
2823                              struct mesa_glinterop_export_in *in,
2824                              struct mesa_glinterop_export_out *out)
2825 {
2826    _EGLDisplay *disp;
2827    const _EGLDriver *drv;
2828    _EGLContext *ctx;
2829    int ret;
2830
2831    ret = _eglLockDisplayInterop(dpy, context, &disp, &drv, &ctx);
2832    if (ret != MESA_GLINTEROP_SUCCESS)
2833       return ret;
2834
2835    if (drv->GLInteropExportObject)
2836       ret = drv->GLInteropExportObject(disp, ctx, in, out);
2837    else
2838       ret = MESA_GLINTEROP_UNSUPPORTED;
2839
2840    _eglUnlockDisplay(disp);
2841    return ret;
2842 }