src/egl/main/eglapi.c

   1 /**
   2  * Public EGL API entrypoints
   3  *
   4  * Generally, we use the EGLDisplay parameter as a key to lookup the
   5  * appropriate device driver handle, then jump though the driver's
   6  * dispatch table to handle the function.
   7  *
   8  * That allows us the option of supporting multiple, simultaneous,
   9  * heterogeneous hardware devices in the future.
  10  *
  11  * The EGLDisplay, EGLConfig, EGLContext and EGLSurface types are
  12  * opaque handles. Internal objects are linked to a display to
  13  * create the handles.
  14  *
  15  * For each public API entry point, the opaque handles are looked up
  16  * before being dispatched to the drivers.  When it fails to look up
  17  * a handle, one of
  18  *
  19  * EGL_BAD_DISPLAY
  20  * EGL_BAD_CONFIG
  21  * EGL_BAD_CONTEXT
  22  * EGL_BAD_SURFACE
  23  * EGL_BAD_SCREEN_MESA
  24  * EGL_BAD_MODE_MESA
  25  *
  26  * is generated and the driver function is not called. An
  27  * uninitialized EGLDisplay has no driver associated with it. When
  28  * such display is detected,
  29  *
  30  * EGL_NOT_INITIALIZED
  31  *
  32  * is generated.
  33  *
  34  * Some of the entry points use current display, context, or surface
  35  * implicitly.  For such entry points, the implicit objects are also
  36  * checked before calling the driver function.  Other than the
  37  * errors listed above,
  38  *
  39  * EGL_BAD_CURRENT_SURFACE
  40  *
  41  * may also be generated.
  42  *
  43  * Notes on naming conventions:
  44  *
  45  * eglFooBar    - public EGL function
  46  * EGL_FOO_BAR  - public EGL token
  47  * EGLDatatype  - public EGL datatype
  48  *
  49  * _eglFooBar   - private EGL function
  50  * _EGLDatatype - private EGL datatype, typedef'd struct
  51  * _egl_struct  - private EGL struct, non-typedef'd
  52  *
  53  */
  54
  55
  56 #include <stdio.h>
  57 #include <stdlib.h>
  58 #include <string.h>
  59
  60 #include "eglstring.h"
  61 #include "eglcontext.h"
  62 #include "egldisplay.h"
  63 #include "egltypedefs.h"
  64 #include "eglglobals.h"
  65 #include "eglcurrent.h"
  66 #include "egldriver.h"
  67 #include "eglsurface.h"
  68 #include "eglconfig.h"
  69 #include "eglscreen.h"
  70 #include "eglmode.h"
  71 #include "eglimage.h"
  72
  73
  74 /**
  75  * Macros to help return an API entrypoint.
  76  *
  77  * These macros will unlock the display and record the error code.
  78  */
  79 #define RETURN_EGL_ERROR(disp, err, ret)        \
  80    do {                                         \
  81       if (disp)                                 \
  82          _eglUnlockDisplay(disp);               \
  83       /* EGL error codes are non-zero */        \
  84       if (err)                                  \
  85          _eglError(err, __FUNCTION__);          \
  86       return ret;                               \
  87    } while (0)
  88
  89 #define RETURN_EGL_SUCCESS(disp, ret) \
  90    RETURN_EGL_ERROR(disp, EGL_SUCCESS, ret)
  91
  92 /* record EGL_SUCCESS only when ret evaluates to true */
  93 #define RETURN_EGL_EVAL(disp, ret) \
  94    RETURN_EGL_ERROR(disp, (ret) ? EGL_SUCCESS : 0, ret)
  95
  96
  97 /*
  98  * A bunch of macros and checks to simplify error checking.
  99  */
 100
 101 #define _EGL_CHECK_DISPLAY(disp, ret, drv)         \
 102    do {                                            \
 103       drv = _eglCheckDisplay(disp, __FUNCTION__);  \
 104       if (!drv)                                    \
 105          RETURN_EGL_ERROR(disp, 0, ret);           \
 106    } while (0)
 107
 108 #define _EGL_CHECK_OBJECT(disp, type, obj, ret, drv)      \
 109    do {                                                   \
 110       drv = _eglCheck ## type(disp, obj, __FUNCTION__);   \
 111       if (!drv)                                           \
 112          RETURN_EGL_ERROR(disp, 0, ret);                  \
 113    } while (0)
 114
 115 #define _EGL_CHECK_SURFACE(disp, surf, ret, drv) \
 116    _EGL_CHECK_OBJECT(disp, Surface, surf, ret, drv)
 117
 118 #define _EGL_CHECK_CONTEXT(disp, context, ret, drv) \
 119    _EGL_CHECK_OBJECT(disp, Context, context, ret, drv)
 120
 121 #define _EGL_CHECK_CONFIG(disp, conf, ret, drv) \
 122    _EGL_CHECK_OBJECT(disp, Config, conf, ret, drv)
 123
 124 #define _EGL_CHECK_SCREEN(disp, scrn, ret, drv) \
 125    _EGL_CHECK_OBJECT(disp, Screen, scrn, ret, drv)
 126
 127 #define _EGL_CHECK_MODE(disp, m, ret, drv) \
 128    _EGL_CHECK_OBJECT(disp, Mode, m, ret, drv)
 129
 130
 131
 132 static INLINE _EGLDriver *
 133 _eglCheckDisplay(_EGLDisplay *disp, const char *msg)
 134 {
 135    if (!disp) {
 136       _eglError(EGL_BAD_DISPLAY, msg);
 137       return NULL;
 138    }
 139    if (!disp->Initialized) {
 140       _eglError(EGL_NOT_INITIALIZED, msg);
 141       return NULL;
 142    }
 143    return disp->Driver;
 144 }
 145
 146
 147 static INLINE _EGLDriver *
 148 _eglCheckSurface(_EGLDisplay *disp, _EGLSurface *surf, const char *msg)
 149 {
 150    _EGLDriver *drv = _eglCheckDisplay(disp, msg);
 151    if (!drv)
 152       return NULL;
 153    if (!surf) {
 154       _eglError(EGL_BAD_SURFACE, msg);
 155       return NULL;
 156    }
 157    return drv;
 158 }
 159
 160
 161 static INLINE _EGLDriver *
 162 _eglCheckContext(_EGLDisplay *disp, _EGLContext *context, const char *msg)
 163 {
 164    _EGLDriver *drv = _eglCheckDisplay(disp, msg);
 165    if (!drv)
 166       return NULL;
 167    if (!context) {
 168       _eglError(EGL_BAD_CONTEXT, msg);
 169       return NULL;
 170    }
 171    return drv;
 172 }
 173
 174
 175 static INLINE _EGLDriver *
 176 _eglCheckConfig(_EGLDisplay *disp, _EGLConfig *conf, const char *msg)
 177 {
 178    _EGLDriver *drv = _eglCheckDisplay(disp, msg);
 179    if (!drv)
 180       return NULL;
 181    if (!conf) {
 182       _eglError(EGL_BAD_CONFIG, msg);
 183       return NULL;
 184    }
 185    return drv;
 186 }
 187
 188
 189 #ifdef EGL_MESA_screen_surface
 190
 191
 192 static INLINE _EGLDriver *
 193 _eglCheckScreen(_EGLDisplay *disp, _EGLScreen *scrn, const char *msg)
 194 {
 195    _EGLDriver *drv = _eglCheckDisplay(disp, msg);
 196    if (!drv)
 197       return NULL;
 198    if (!scrn) {
 199       _eglError(EGL_BAD_SCREEN_MESA, msg);
 200       return NULL;
 201    }
 202    return drv;
 203 }
 204
 205
 206 static INLINE _EGLDriver *
 207 _eglCheckMode(_EGLDisplay *disp, _EGLMode *m, const char *msg)
 208 {
 209    _EGLDriver *drv = _eglCheckDisplay(disp, msg);
 210    if (!drv)
 211       return NULL;
 212    if (!m) {
 213       _eglError(EGL_BAD_MODE_MESA, msg);
 214       return NULL;
 215    }
 216    return drv;
 217 }
 218
 219
 220 #endif /* EGL_MESA_screen_surface */
 221
 222
 223 /**
 224  * Lookup and lock a display.
 225  */
 226 static INLINE _EGLDisplay *
 227 _eglLockDisplay(EGLDisplay display)
 228 {
 229    _EGLDisplay *dpy = _eglLookupDisplay(display);
 230    if (dpy)
 231       _eglLockMutex(&dpy->Mutex);
 232    return dpy;
 233 }
 234
 235
 236 /**
 237  * Unlock a display.
 238  */
 239 static INLINE void
 240 _eglUnlockDisplay(_EGLDisplay *dpy)
 241 {
 242    _eglUnlockMutex(&dpy->Mutex);
 243 }
 244
 245
 246 /**
 247  * This is typically the first EGL function that an application calls.
 248  * It associates a private _EGLDisplay object to the native display.
 249  */
 250 EGLDisplay EGLAPIENTRY
 251 eglGetDisplay(EGLNativeDisplayType nativeDisplay)
 252 {
 253    _EGLPlatformType plat = _eglGetNativePlatform();
 254    _EGLDisplay *dpy = _eglFindDisplay(plat, (void *) nativeDisplay);
 255    return _eglGetDisplayHandle(dpy);
 256 }
 257
 258
 259 /**
 260  * This is typically the second EGL function that an application calls.
 261  * Here we load/initialize the actual hardware driver.
 262  */
 263 EGLBoolean EGLAPIENTRY
 264 eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
 265 {
 266    _EGLDisplay *disp = _eglLockDisplay(dpy);
 267    EGLint major_int = 0, minor_int = 0;
 268
 269    if (!disp)
 270       RETURN_EGL_ERROR(NULL, EGL_BAD_DISPLAY, EGL_FALSE);
 271
 272    if (!disp->Initialized) {
 273       _EGLDriver *drv = disp->Driver;
 274
 275       if (!drv) {
 276          _eglPreloadDrivers();
 277          drv = _eglMatchDriver(disp);
 278          /* Initialize the particular display now */
 279          if (drv && !drv->API.Initialize(drv, disp, &major_int, &minor_int))
 280             RETURN_EGL_ERROR(disp, EGL_NOT_INITIALIZED, EGL_FALSE);
 281       }
 282       if (!drv)
 283          /* Load and initialize the first default driver that works */
 284          drv = _eglLoadDefaultDriver(disp, &major_int, &minor_int);
 285       if (!drv)
 286          RETURN_EGL_ERROR(disp, EGL_NOT_INITIALIZED, EGL_FALSE);
 287
 288       disp->APImajor = major_int;
 289       disp->APIminor = minor_int;
 290       _eglsnprintf(disp->Version, sizeof(disp->Version),
 291                "%d.%d (%s)", major_int, minor_int, drv->Name);
 292
 293       /* limit to APIs supported by core */
 294       disp->ClientAPIsMask &= _EGL_API_ALL_BITS;
 295
 296       disp->Driver = drv;
 297       disp->Initialized = EGL_TRUE;
 298    } else {
 299       major_int = disp->APImajor;
 300       minor_int = disp->APIminor;
 301    }
 302
 303    /* Update applications version of major and minor if not NULL */
 304    if ((major != NULL) && (minor != NULL)) {
 305       *major = major_int;
 306       *minor = minor_int;
 307    }
 308
 309    RETURN_EGL_SUCCESS(disp, EGL_TRUE);
 310 }
 311
 312
 313 EGLBoolean EGLAPIENTRY
 314 eglTerminate(EGLDisplay dpy)
 315 {
 316    _EGLDisplay *disp = _eglLockDisplay(dpy);
 317
 318    if (!disp)
 319       RETURN_EGL_ERROR(NULL, EGL_BAD_DISPLAY, EGL_FALSE);
 320
 321    if (disp->Initialized) {
 322       _EGLDriver *drv = disp->Driver;
 323
 324       drv->API.Terminate(drv, disp);
 325       /* do not reset disp->Driver */
 326       disp->Initialized = EGL_FALSE;
 327    }
 328
 329    RETURN_EGL_SUCCESS(disp, EGL_TRUE);
 330 }
 331
 332
 333 const char * EGLAPIENTRY
 334 eglQueryString(EGLDisplay dpy, EGLint name)
 335 {
 336    _EGLDisplay *disp = _eglLockDisplay(dpy);
 337    _EGLDriver *drv;
 338    const char *ret;
 339
 340    _EGL_CHECK_DISPLAY(disp, NULL, drv);
 341    ret = drv->API.QueryString(drv, disp, name);
 342
 343    RETURN_EGL_EVAL(disp, ret);
 344 }
 345
 346
 347 EGLBoolean EGLAPIENTRY
 348 eglGetConfigs(EGLDisplay dpy, EGLConfig *configs,
 349               EGLint config_size, EGLint *num_config)
 350 {
 351    _EGLDisplay *disp = _eglLockDisplay(dpy);
 352    _EGLDriver *drv;
 353    EGLBoolean ret;
 354
 355    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
 356    ret = drv->API.GetConfigs(drv, disp, configs, config_size, num_config);
 357
 358    RETURN_EGL_EVAL(disp, ret);
 359 }
 360
 361
 362 EGLBoolean EGLAPIENTRY
 363 eglChooseConfig(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs,
 364                 EGLint config_size, EGLint *num_config)
 365 {
 366    _EGLDisplay *disp = _eglLockDisplay(dpy);
 367    _EGLDriver *drv;
 368    EGLBoolean ret;
 369
 370    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
 371    ret = drv->API.ChooseConfig(drv, disp, attrib_list, configs,
 372                                 config_size, num_config);
 373
 374    RETURN_EGL_EVAL(disp, ret);
 375 }
 376
 377
 378 EGLBoolean EGLAPIENTRY
 379 eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,
 380                    EGLint attribute, EGLint *value)
 381 {
 382    _EGLDisplay *disp = _eglLockDisplay(dpy);
 383    _EGLConfig *conf = _eglLookupConfig(config, disp);
 384    _EGLDriver *drv;
 385    EGLBoolean ret;
 386
 387    _EGL_CHECK_CONFIG(disp, conf, EGL_FALSE, drv);
 388    ret = drv->API.GetConfigAttrib(drv, disp, conf, attribute, value);
 389
 390    RETURN_EGL_EVAL(disp, ret);
 391 }
 392
 393
 394 EGLContext EGLAPIENTRY
 395 eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_list,
 396                  const EGLint *attrib_list)
 397 {
 398    _EGLDisplay *disp = _eglLockDisplay(dpy);
 399    _EGLConfig *conf = _eglLookupConfig(config, disp);
 400    _EGLContext *share = _eglLookupContext(share_list, disp);
 401    _EGLDriver *drv;
 402    _EGLContext *context;
 403    EGLContext ret;
 404
 405    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_CONTEXT, drv);
 406    if (!share && share_list != EGL_NO_CONTEXT)
 407       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_NO_CONTEXT);
 408
 409    context = drv->API.CreateContext(drv, disp, conf, share, attrib_list);
 410    ret = (context) ? _eglLinkContext(context, disp) : EGL_NO_CONTEXT;
 411
 412    RETURN_EGL_EVAL(disp, ret);
 413 }
 414
 415
 416 EGLBoolean EGLAPIENTRY
 417 eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
 418 {
 419    _EGLDisplay *disp = _eglLockDisplay(dpy);
 420    _EGLContext *context = _eglLookupContext(ctx, disp);
 421    _EGLDriver *drv;
 422    EGLBoolean ret;
 423
 424    _EGL_CHECK_CONTEXT(disp, context, EGL_FALSE, drv);
 425    _eglUnlinkContext(context);
 426    ret = drv->API.DestroyContext(drv, disp, context);
 427
 428    RETURN_EGL_EVAL(disp, ret);
 429 }
 430
 431
 432 EGLBoolean EGLAPIENTRY
 433 eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read,
 434                EGLContext ctx)
 435 {
 436    _EGLDisplay *disp = _eglLockDisplay(dpy);
 437    _EGLContext *context = _eglLookupContext(ctx, disp);
 438    _EGLSurface *draw_surf = _eglLookupSurface(draw, disp);
 439    _EGLSurface *read_surf = _eglLookupSurface(read, disp);
 440    _EGLDriver *drv;
 441    EGLBoolean ret;
 442
 443    if (!disp)
 444       RETURN_EGL_ERROR(disp, EGL_BAD_DISPLAY, EGL_FALSE);
 445    drv = disp->Driver;
 446
 447    /* display is allowed to be uninitialized under certain condition */
 448    if (!disp->Initialized) {
 449       if (draw != EGL_NO_SURFACE || read != EGL_NO_SURFACE ||
 450           ctx != EGL_NO_CONTEXT)
 451          RETURN_EGL_ERROR(disp, EGL_BAD_DISPLAY, EGL_FALSE);
 452    }
 453    if (!drv)
 454       RETURN_EGL_SUCCESS(disp, EGL_TRUE);
 455
 456    if (!context && ctx != EGL_NO_CONTEXT)
 457       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_FALSE);
 458    if ((!draw_surf && draw != EGL_NO_SURFACE) ||
 459        (!read_surf && read != EGL_NO_SURFACE))
 460       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
 461
 462    ret = drv->API.MakeCurrent(drv, disp, draw_surf, read_surf, context);
 463
 464    RETURN_EGL_EVAL(disp, ret);
 465 }
 466
 467
 468 EGLBoolean EGLAPIENTRY
 469 eglQueryContext(EGLDisplay dpy, EGLContext ctx,
 470                 EGLint attribute, EGLint *value)
 471 {
 472    _EGLDisplay *disp = _eglLockDisplay(dpy);
 473    _EGLContext *context = _eglLookupContext(ctx, disp);
 474    _EGLDriver *drv;
 475    EGLBoolean ret;
 476
 477    _EGL_CHECK_CONTEXT(disp, context, EGL_FALSE, drv);
 478    ret = drv->API.QueryContext(drv, disp, context, attribute, value);
 479
 480    RETURN_EGL_EVAL(disp, ret);
 481 }
 482
 483
 484 EGLSurface EGLAPIENTRY
 485 eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config,
 486                        EGLNativeWindowType window, const EGLint *attrib_list)
 487 {
 488    _EGLDisplay *disp = _eglLockDisplay(dpy);
 489    _EGLConfig *conf = _eglLookupConfig(config, disp);
 490    _EGLDriver *drv;
 491    _EGLSurface *surf;
 492    EGLSurface ret;
 493
 494    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
 495    if (disp->Platform != _eglGetNativePlatform())
 496       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
 497
 498    surf = drv->API.CreateWindowSurface(drv, disp, conf, window, attrib_list);
 499    ret = (surf) ? _eglLinkSurface(surf, disp) : EGL_NO_SURFACE;
 500
 501    RETURN_EGL_EVAL(disp, ret);
 502 }
 503
 504
 505 EGLSurface EGLAPIENTRY
 506 eglCreatePixmapSurface(EGLDisplay dpy, EGLConfig config,
 507                        EGLNativePixmapType pixmap, const EGLint *attrib_list)
 508 {
 509    _EGLDisplay *disp = _eglLockDisplay(dpy);
 510    _EGLConfig *conf = _eglLookupConfig(config, disp);
 511    _EGLDriver *drv;
 512    _EGLSurface *surf;
 513    EGLSurface ret;
 514
 515    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
 516    if (disp->Platform != _eglGetNativePlatform())
 517       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_PIXMAP, EGL_NO_SURFACE);
 518
 519    surf = drv->API.CreatePixmapSurface(drv, disp, conf, pixmap, attrib_list);
 520    ret = (surf) ? _eglLinkSurface(surf, disp) : EGL_NO_SURFACE;
 521
 522    RETURN_EGL_EVAL(disp, ret);
 523 }
 524
 525
 526 EGLSurface EGLAPIENTRY
 527 eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config,
 528                         const EGLint *attrib_list)
 529 {
 530    _EGLDisplay *disp = _eglLockDisplay(dpy);
 531    _EGLConfig *conf = _eglLookupConfig(config, disp);
 532    _EGLDriver *drv;
 533    _EGLSurface *surf;
 534    EGLSurface ret;
 535
 536    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
 537
 538    surf = drv->API.CreatePbufferSurface(drv, disp, conf, attrib_list);
 539    ret = (surf) ? _eglLinkSurface(surf, disp) : EGL_NO_SURFACE;
 540
 541    RETURN_EGL_EVAL(disp, ret);
 542 }
 543
 544
 545 EGLBoolean EGLAPIENTRY
 546 eglDestroySurface(EGLDisplay dpy, EGLSurface surface)
 547 {
 548    _EGLDisplay *disp = _eglLockDisplay(dpy);
 549    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 550    _EGLDriver *drv;
 551    EGLBoolean ret;
 552
 553    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 554    _eglUnlinkSurface(surf);
 555    ret = drv->API.DestroySurface(drv, disp, surf);
 556
 557    RETURN_EGL_EVAL(disp, ret);
 558 }
 559
 560 EGLBoolean EGLAPIENTRY
 561 eglQuerySurface(EGLDisplay dpy, EGLSurface surface,
 562                 EGLint attribute, EGLint *value)
 563 {
 564    _EGLDisplay *disp = _eglLockDisplay(dpy);
 565    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 566    _EGLDriver *drv;
 567    EGLBoolean ret;
 568
 569    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 570    ret = drv->API.QuerySurface(drv, disp, surf, attribute, value);
 571
 572    RETURN_EGL_EVAL(disp, ret);
 573 }
 574
 575 EGLBoolean EGLAPIENTRY
 576 eglSurfaceAttrib(EGLDisplay dpy, EGLSurface surface,
 577                  EGLint attribute, EGLint value)
 578 {
 579    _EGLDisplay *disp = _eglLockDisplay(dpy);
 580    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 581    _EGLDriver *drv;
 582    EGLBoolean ret;
 583
 584    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 585    ret = drv->API.SurfaceAttrib(drv, disp, surf, attribute, value);
 586
 587    RETURN_EGL_EVAL(disp, ret);
 588 }
 589
 590
 591 EGLBoolean EGLAPIENTRY
 592 eglBindTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer)
 593 {
 594    _EGLDisplay *disp = _eglLockDisplay(dpy);
 595    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 596    _EGLDriver *drv;
 597    EGLBoolean ret;
 598
 599    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 600    ret = drv->API.BindTexImage(drv, disp, surf, buffer);
 601
 602    RETURN_EGL_EVAL(disp, ret);
 603 }
 604
 605
 606 EGLBoolean EGLAPIENTRY
 607 eglReleaseTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer)
 608 {
 609    _EGLDisplay *disp = _eglLockDisplay(dpy);
 610    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 611    _EGLDriver *drv;
 612    EGLBoolean ret;
 613
 614    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 615    ret = drv->API.ReleaseTexImage(drv, disp, surf, buffer);
 616
 617    RETURN_EGL_EVAL(disp, ret);
 618 }
 619
 620
 621 EGLBoolean EGLAPIENTRY
 622 eglSwapInterval(EGLDisplay dpy, EGLint interval)
 623 {
 624    _EGLDisplay *disp = _eglLockDisplay(dpy);
 625    _EGLContext *ctx = _eglGetCurrentContext();
 626    _EGLSurface *surf;
 627    _EGLDriver *drv;
 628    EGLBoolean ret;
 629
 630    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
 631
 632    if (!ctx || !_eglIsContextLinked(ctx) || ctx->Resource.Display != disp)
 633       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_FALSE);
 634
 635    surf = ctx->DrawSurface;
 636    if (!_eglIsSurfaceLinked(surf))
 637       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
 638
 639    ret = drv->API.SwapInterval(drv, disp, surf, interval);
 640
 641    RETURN_EGL_EVAL(disp, ret);
 642 }
 643
 644
 645 EGLBoolean EGLAPIENTRY
 646 eglSwapBuffers(EGLDisplay dpy, EGLSurface surface)
 647 {
 648    _EGLContext *ctx = _eglGetCurrentContext();
 649    _EGLDisplay *disp = _eglLockDisplay(dpy);
 650    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 651    _EGLDriver *drv;
 652    EGLBoolean ret;
 653
 654    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 655
 656    /* surface must be bound to current context in EGL 1.4 */
 657    if (!ctx || !_eglIsContextLinked(ctx) || surf != ctx->DrawSurface)
 658       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
 659
 660    ret = drv->API.SwapBuffers(drv, disp, surf);
 661
 662    RETURN_EGL_EVAL(disp, ret);
 663 }
 664
 665
 666 EGLBoolean EGLAPIENTRY
 667 eglCopyBuffers(EGLDisplay dpy, EGLSurface surface, EGLNativePixmapType target)
 668 {
 669    _EGLDisplay *disp = _eglLockDisplay(dpy);
 670    _EGLSurface *surf = _eglLookupSurface(surface, disp);
 671    _EGLDriver *drv;
 672    EGLBoolean ret;
 673
 674    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
 675    if (disp->Platform != _eglGetNativePlatform())
 676       RETURN_EGL_ERROR(disp, EGL_BAD_NATIVE_PIXMAP, EGL_FALSE);
 677    ret = drv->API.CopyBuffers(drv, disp, surf, target);
 678
 679    RETURN_EGL_EVAL(disp, ret);
 680 }
 681
 682
 683 EGLBoolean EGLAPIENTRY
 684 eglWaitClient(void)
 685 {
 686    _EGLContext *ctx = _eglGetCurrentContext();
 687    _EGLDisplay *disp;
 688    _EGLDriver *drv;
 689    EGLBoolean ret;
 690
 691    if (!ctx)
 692       RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
 693
 694    disp = ctx->Resource.Display;
 695    _eglLockMutex(&disp->Mutex);
 696
 697    /* let bad current context imply bad current surface */
 698    if (!_eglIsContextLinked(ctx) || !_eglIsSurfaceLinked(ctx->DrawSurface))
 699       RETURN_EGL_ERROR(disp, EGL_BAD_CURRENT_SURFACE, EGL_FALSE);
 700
 701    /* a valid current context implies an initialized current display */
 702    assert(disp->Initialized);
 703    drv = disp->Driver;
 704    ret = drv->API.WaitClient(drv, disp, ctx);
 705
 706    RETURN_EGL_EVAL(disp, ret);
 707 }
 708
 709
 710 EGLBoolean EGLAPIENTRY
 711 eglWaitGL(void)
 712 {
 713 #ifdef EGL_VERSION_1_2
 714    _EGLThreadInfo *t = _eglGetCurrentThread();
 715    EGLint api_index = t->CurrentAPIIndex;
 716    EGLint es_index = _eglConvertApiToIndex(EGL_OPENGL_ES_API);
 717    EGLBoolean ret;
 718
 719    if (api_index != es_index && _eglIsCurrentThreadDummy())
 720       RETURN_EGL_ERROR(NULL, EGL_BAD_ALLOC, EGL_FALSE);
 721
 722    t->CurrentAPIIndex = es_index;
 723    ret = eglWaitClient();
 724    t->CurrentAPIIndex = api_index;
 725    return ret;
 726 #else
 727    return eglWaitClient();
 728 #endif
 729 }
 730
 731
 732 EGLBoolean EGLAPIENTRY
 733 eglWaitNative(EGLint engine)
 734 {
 735    _EGLContext *ctx = _eglGetCurrentContext();
 736    _EGLDisplay *disp;
 737    _EGLDriver *drv;
 738    EGLBoolean ret;
 739
 740    if (!ctx)
 741       RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
 742
 743    disp = ctx->Resource.Display;
 744    _eglLockMutex(&disp->Mutex);
 745
 746    /* let bad current context imply bad current surface */
 747    if (!_eglIsContextLinked(ctx) || !_eglIsSurfaceLinked(ctx->DrawSurface))
 748       RETURN_EGL_ERROR(disp, EGL_BAD_CURRENT_SURFACE, EGL_FALSE);
 749
 750    /* a valid current context implies an initialized current display */
 751    assert(disp->Initialized);
 752    drv = disp->Driver;
 753    ret = drv->API.WaitNative(drv, disp, engine);
 754
 755    RETURN_EGL_EVAL(disp, ret);
 756 }
 757
 758
 759 EGLDisplay EGLAPIENTRY
 760 eglGetCurrentDisplay(void)
 761 {
 762    _EGLContext *ctx = _eglGetCurrentContext();
 763    EGLDisplay ret;
 764
 765    ret = (ctx) ? _eglGetDisplayHandle(ctx->Resource.Display) : EGL_NO_DISPLAY;
 766
 767    RETURN_EGL_SUCCESS(NULL, ret);
 768 }
 769
 770
 771 EGLContext EGLAPIENTRY
 772 eglGetCurrentContext(void)
 773 {
 774    _EGLContext *ctx = _eglGetCurrentContext();
 775    EGLContext ret;
 776
 777    ret = _eglGetContextHandle(ctx);
 778
 779    RETURN_EGL_SUCCESS(NULL, ret);
 780 }
 781
 782
 783 EGLSurface EGLAPIENTRY
 784 eglGetCurrentSurface(EGLint readdraw)
 785 {
 786    _EGLContext *ctx = _eglGetCurrentContext();
 787    EGLint err = EGL_SUCCESS;
 788    _EGLSurface *surf;
 789    EGLSurface ret;
 790
 791    if (!ctx)
 792       RETURN_EGL_SUCCESS(NULL, EGL_NO_SURFACE);
 793
 794    switch (readdraw) {
 795    case EGL_DRAW:
 796       surf = ctx->DrawSurface;
 797       break;
 798    case EGL_READ:
 799       surf = ctx->ReadSurface;
 800       break;
 801    default:
 802       surf = NULL;
 803       err = EGL_BAD_PARAMETER;
 804       break;
 805    }
 806
 807    ret = _eglGetSurfaceHandle(surf);
 808
 809    RETURN_EGL_ERROR(NULL, err, ret);
 810 }
 811
 812
 813 EGLint EGLAPIENTRY
 814 eglGetError(void)
 815 {
 816    _EGLThreadInfo *t = _eglGetCurrentThread();
 817    EGLint e = t->LastError;
 818    if (!_eglIsCurrentThreadDummy())
 819       t->LastError = EGL_SUCCESS;
 820    return e;
 821 }
 822
 823
 824 __eglMustCastToProperFunctionPointerType EGLAPIENTRY
 825 eglGetProcAddress(const char *procname)
 826 {
 827    static const struct {
 828       const char *name;
 829       _EGLProc function;
 830    } egl_functions[] = {
 831       /* extensions only */
 832 #ifdef EGL_MESA_screen_surface
 833       { "eglChooseModeMESA", (_EGLProc) eglChooseModeMESA },
 834       { "eglGetModesMESA", (_EGLProc) eglGetModesMESA },
 835       { "eglGetModeAttribMESA", (_EGLProc) eglGetModeAttribMESA },
 836       { "eglCopyContextMESA", (_EGLProc) eglCopyContextMESA },
 837       { "eglGetScreensMESA", (_EGLProc) eglGetScreensMESA },
 838       { "eglCreateScreenSurfaceMESA", (_EGLProc) eglCreateScreenSurfaceMESA },
 839       { "eglShowScreenSurfaceMESA", (_EGLProc) eglShowScreenSurfaceMESA },
 840       { "eglScreenPositionMESA", (_EGLProc) eglScreenPositionMESA },
 841       { "eglQueryScreenMESA", (_EGLProc) eglQueryScreenMESA },
 842       { "eglQueryScreenSurfaceMESA", (_EGLProc) eglQueryScreenSurfaceMESA },
 843       { "eglQueryScreenModeMESA", (_EGLProc) eglQueryScreenModeMESA },
 844       { "eglQueryModeStringMESA", (_EGLProc) eglQueryModeStringMESA },
 845 #endif /* EGL_MESA_screen_surface */
 846 #ifdef EGL_MESA_drm_display
 847       { "eglGetDRMDisplayMESA", (_EGLProc) eglGetDRMDisplayMESA },
 848 #endif
 849 #ifdef EGL_KHR_image_base
 850       { "eglCreateImageKHR", (_EGLProc) eglCreateImageKHR },
 851       { "eglDestroyImageKHR", (_EGLProc) eglDestroyImageKHR },
 852 #endif /* EGL_KHR_image_base */
 853 #ifdef EGL_NOK_swap_region
 854       { "eglSwapBuffersRegionNOK", (_EGLProc) eglSwapBuffersRegionNOK },
 855 #endif
 856       { NULL, NULL }
 857    };
 858    EGLint i;
 859    _EGLProc ret;
 860
 861    if (!procname)
 862       RETURN_EGL_SUCCESS(NULL, NULL);
 863
 864    ret = NULL;
 865    if (strncmp(procname, "egl", 3) == 0) {
 866       for (i = 0; egl_functions[i].name; i++) {
 867          if (strcmp(egl_functions[i].name, procname) == 0) {
 868             ret = egl_functions[i].function;
 869             break;
 870          }
 871       }
 872    }
 873    if (ret)
 874       RETURN_EGL_SUCCESS(NULL, ret);
 875
 876    _eglPreloadDrivers();
 877
 878    /* now loop over drivers to query their procs */
 879    for (i = 0; i < _eglGlobal.NumDrivers; i++) {
 880       _EGLDriver *drv = _eglGlobal.Drivers[i];
 881       ret = drv->API.GetProcAddress(drv, procname);
 882       if (ret)
 883          break;
 884    }
 885
 886    RETURN_EGL_SUCCESS(NULL, ret);
 887 }
 888
 889
 890 #ifdef EGL_MESA_screen_surface
 891
 892
 893 /*
 894  * EGL_MESA_screen extension
 895  */
 896
 897 EGLBoolean EGLAPIENTRY
 898 eglChooseModeMESA(EGLDisplay dpy, EGLScreenMESA screen,
 899                   const EGLint *attrib_list, EGLModeMESA *modes,
 900                   EGLint modes_size, EGLint *num_modes)
 901 {
 902    _EGLDisplay *disp = _eglLockDisplay(dpy);
 903    _EGLScreen *scrn = _eglLookupScreen(screen, disp);
 904    _EGLDriver *drv;
 905    EGLBoolean ret;
 906
 907    _EGL_CHECK_SCREEN(disp, scrn, EGL_FALSE, drv);
 908    ret = drv->API.ChooseModeMESA(drv, disp, scrn, attrib_list,
 909          modes, modes_size, num_modes);
 910
 911    RETURN_EGL_EVAL(disp, ret);
 912 }
 913
 914
 915 EGLBoolean EGLAPIENTRY
 916 eglGetModesMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLModeMESA *modes,
 917                 EGLint mode_size, EGLint *num_mode)
 918 {
 919    _EGLDisplay *disp = _eglLockDisplay(dpy);
 920    _EGLScreen *scrn = _eglLookupScreen(screen, disp);
 921    _EGLDriver *drv;
 922    EGLBoolean ret;
 923
 924    _EGL_CHECK_SCREEN(disp, scrn, EGL_FALSE, drv);
 925    ret = drv->API.GetModesMESA(drv, disp, scrn, modes, mode_size, num_mode);
 926
 927    RETURN_EGL_EVAL(disp, ret);
 928 }
 929
 930
 931 EGLBoolean EGLAPIENTRY
 932 eglGetModeAttribMESA(EGLDisplay dpy, EGLModeMESA mode,
 933                      EGLint attribute, EGLint *value)
 934 {
 935    _EGLDisplay *disp = _eglLockDisplay(dpy);
 936    _EGLMode *m = _eglLookupMode(mode, disp);
 937    _EGLDriver *drv;
 938    EGLBoolean ret;
 939
 940    _EGL_CHECK_MODE(disp, m, EGL_FALSE, drv);
 941    ret = drv->API.GetModeAttribMESA(drv, disp, m, attribute, value);
 942
 943    RETURN_EGL_EVAL(disp, ret);
 944 }
 945
 946
 947 EGLBoolean EGLAPIENTRY
 948 eglCopyContextMESA(EGLDisplay dpy, EGLContext source, EGLContext dest,
 949                    EGLint mask)
 950 {
 951    _EGLDisplay *disp = _eglLockDisplay(dpy);
 952    _EGLContext *source_context = _eglLookupContext(source, disp);
 953    _EGLContext *dest_context = _eglLookupContext(dest, disp);
 954    _EGLDriver *drv;
 955    EGLBoolean ret;
 956
 957    _EGL_CHECK_CONTEXT(disp, source_context, EGL_FALSE, drv);
 958    if (!dest_context)
 959       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_FALSE);
 960
 961    ret = drv->API.CopyContextMESA(drv, disp,
 962          source_context, dest_context, mask);
 963
 964    RETURN_EGL_EVAL(disp, ret);
 965 }
 966
 967
 968 EGLBoolean
 969 eglGetScreensMESA(EGLDisplay dpy, EGLScreenMESA *screens,
 970                   EGLint max_screens, EGLint *num_screens)
 971 {
 972    _EGLDisplay *disp = _eglLockDisplay(dpy);
 973    _EGLDriver *drv;
 974    EGLBoolean ret;
 975
 976    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
 977    ret = drv->API.GetScreensMESA(drv, disp, screens, max_screens, num_screens);
 978
 979    RETURN_EGL_EVAL(disp, ret);
 980 }
 981
 982
 983 EGLSurface
 984 eglCreateScreenSurfaceMESA(EGLDisplay dpy, EGLConfig config,
 985                            const EGLint *attrib_list)
 986 {
 987    _EGLDisplay *disp = _eglLockDisplay(dpy);
 988    _EGLConfig *conf = _eglLookupConfig(config, disp);
 989    _EGLDriver *drv;
 990    _EGLSurface *surf;
 991    EGLSurface ret;
 992
 993    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
 994
 995    surf = drv->API.CreateScreenSurfaceMESA(drv, disp, conf, attrib_list);
 996    ret = (surf) ? _eglLinkSurface(surf, disp) : EGL_NO_SURFACE;
 997
 998    RETURN_EGL_EVAL(disp, ret);
 999 }
1000
1001
1002 EGLBoolean
1003 eglShowScreenSurfaceMESA(EGLDisplay dpy, EGLint screen,
1004                          EGLSurface surface, EGLModeMESA mode)
1005 {
1006    _EGLDisplay *disp = _eglLockDisplay(dpy);
1007    _EGLScreen *scrn = _eglLookupScreen((EGLScreenMESA) screen, disp);
1008    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1009    _EGLMode *m = _eglLookupMode(mode, disp);
1010    _EGLDriver *drv;
1011    EGLBoolean ret;
1012
1013    _EGL_CHECK_SCREEN(disp, scrn, EGL_FALSE, drv);
1014    if (!surf && surface != EGL_NO_SURFACE)
1015       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
1016    if (!m && mode != EGL_NO_MODE_MESA)
1017       RETURN_EGL_ERROR(disp, EGL_BAD_MODE_MESA, EGL_FALSE);
1018
1019    ret = drv->API.ShowScreenSurfaceMESA(drv, disp, scrn, surf, m);
1020
1021    RETURN_EGL_EVAL(disp, ret);
1022 }
1023
1024
1025 EGLBoolean
1026 eglScreenPositionMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLint x, EGLint y)
1027 {
1028    _EGLDisplay *disp = _eglLockDisplay(dpy);
1029    _EGLScreen *scrn = _eglLookupScreen(screen, disp);
1030    _EGLDriver *drv;
1031    EGLBoolean ret;
1032
1033    _EGL_CHECK_SCREEN(disp, scrn, EGL_FALSE, drv);
1034    ret = drv->API.ScreenPositionMESA(drv, disp, scrn, x, y);
1035
1036    RETURN_EGL_EVAL(disp, ret);
1037 }
1038
1039
1040 EGLBoolean
1041 eglQueryScreenMESA(EGLDisplay dpy, EGLScreenMESA screen,
1042                    EGLint attribute, EGLint *value)
1043 {
1044    _EGLDisplay *disp = _eglLockDisplay(dpy);
1045    _EGLScreen *scrn = _eglLookupScreen(screen, disp);
1046    _EGLDriver *drv;
1047    EGLBoolean ret;
1048
1049    _EGL_CHECK_SCREEN(disp, scrn, EGL_FALSE, drv);
1050    ret = drv->API.QueryScreenMESA(drv, disp, scrn, attribute, value);
1051
1052    RETURN_EGL_EVAL(disp, ret);
1053 }
1054
1055
1056 EGLBoolean
1057 eglQueryScreenSurfaceMESA(EGLDisplay dpy, EGLScreenMESA screen,
1058                           EGLSurface *surface)
1059 {
1060    _EGLDisplay *disp = _eglLockDisplay(dpy);
1061    _EGLScreen *scrn = _eglLookupScreen((EGLScreenMESA) screen, disp);
1062    _EGLDriver *drv;
1063    _EGLSurface *surf;
1064    EGLBoolean ret;
1065
1066    _EGL_CHECK_SCREEN(disp, scrn, EGL_FALSE, drv);
1067    ret = drv->API.QueryScreenSurfaceMESA(drv, disp, scrn, &surf);
1068    if (ret && surface)
1069       *surface = _eglGetSurfaceHandle(surf);
1070
1071    RETURN_EGL_EVAL(disp, ret);
1072 }
1073
1074
1075 EGLBoolean
1076 eglQueryScreenModeMESA(EGLDisplay dpy, EGLScreenMESA screen, EGLModeMESA *mode)
1077 {
1078    _EGLDisplay *disp = _eglLockDisplay(dpy);
1079    _EGLScreen *scrn = _eglLookupScreen((EGLScreenMESA) screen, disp);
1080    _EGLDriver *drv;
1081    _EGLMode *m;
1082    EGLBoolean ret;
1083
1084    _EGL_CHECK_SCREEN(disp, scrn, EGL_FALSE, drv);
1085    ret = drv->API.QueryScreenModeMESA(drv, disp, scrn, &m);
1086    if (ret && mode)
1087       *mode = m->Handle;
1088
1089    RETURN_EGL_EVAL(disp, ret);
1090 }
1091
1092
1093 const char *
1094 eglQueryModeStringMESA(EGLDisplay dpy, EGLModeMESA mode)
1095 {
1096    _EGLDisplay *disp = _eglLockDisplay(dpy);
1097    _EGLMode *m = _eglLookupMode(mode, disp);
1098    _EGLDriver *drv;
1099    const char *ret;
1100
1101    _EGL_CHECK_MODE(disp, m, NULL, drv);
1102    ret = drv->API.QueryModeStringMESA(drv, disp, m);
1103
1104    RETURN_EGL_EVAL(disp, ret);
1105 }
1106
1107
1108 #endif /* EGL_MESA_screen_surface */
1109
1110
1111 #ifdef EGL_MESA_drm_display
1112
1113 EGLDisplay EGLAPIENTRY
1114 eglGetDRMDisplayMESA(int fd)
1115 {
1116    _EGLDisplay *dpy = _eglFindDisplay(_EGL_PLATFORM_DRM, (void *) fd);
1117    return _eglGetDisplayHandle(dpy);
1118 }
1119
1120 #endif /* EGL_MESA_drm_display */
1121
1122 /**
1123  ** EGL 1.2
1124  **/
1125
1126 #ifdef EGL_VERSION_1_2
1127
1128
1129 /**
1130  * Specify the client API to use for subsequent calls including:
1131  *  eglCreateContext()
1132  *  eglGetCurrentContext()
1133  *  eglGetCurrentDisplay()
1134  *  eglGetCurrentSurface()
1135  *  eglMakeCurrent(when the ctx parameter is EGL NO CONTEXT)
1136  *  eglWaitClient()
1137  *  eglWaitNative()
1138  * See section 3.7 "Rendering Context" in the EGL specification for details.
1139  */
1140 EGLBoolean
1141 eglBindAPI(EGLenum api)
1142 {
1143    _EGLThreadInfo *t = _eglGetCurrentThread();
1144
1145    if (_eglIsCurrentThreadDummy())
1146       RETURN_EGL_ERROR(NULL, EGL_BAD_ALLOC, EGL_FALSE);
1147
1148    if (!_eglIsApiValid(api))
1149       RETURN_EGL_ERROR(NULL, EGL_BAD_PARAMETER, EGL_FALSE);
1150
1151    t->CurrentAPIIndex = _eglConvertApiToIndex(api);
1152
1153    RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
1154 }
1155
1156
1157 /**
1158  * Return the last value set with eglBindAPI().
1159  */
1160 EGLenum
1161 eglQueryAPI(void)
1162 {
1163    _EGLThreadInfo *t = _eglGetCurrentThread();
1164    EGLenum ret;
1165
1166    /* returns one of EGL_OPENGL_API, EGL_OPENGL_ES_API or EGL_OPENVG_API */
1167    ret = _eglConvertApiFromIndex(t->CurrentAPIIndex);
1168
1169    RETURN_EGL_SUCCESS(NULL, ret);
1170 }
1171
1172
1173 EGLSurface
1174 eglCreatePbufferFromClientBuffer(EGLDisplay dpy, EGLenum buftype,
1175                                  EGLClientBuffer buffer, EGLConfig config,
1176                                  const EGLint *attrib_list)
1177 {
1178    _EGLDisplay *disp = _eglLockDisplay(dpy);
1179    _EGLConfig *conf = _eglLookupConfig(config, disp);
1180    _EGLDriver *drv;
1181    _EGLSurface *surf;
1182    EGLSurface ret;
1183
1184    _EGL_CHECK_CONFIG(disp, conf, EGL_NO_SURFACE, drv);
1185
1186    surf = drv->API.CreatePbufferFromClientBuffer(drv, disp, buftype, buffer,
1187                                                  conf, attrib_list);
1188    ret = (surf) ? _eglLinkSurface(surf, disp) : EGL_NO_SURFACE;
1189
1190    RETURN_EGL_EVAL(disp, ret);
1191 }
1192
1193
1194 EGLBoolean
1195 eglReleaseThread(void)
1196 {
1197    /* unbind current contexts */
1198    if (!_eglIsCurrentThreadDummy()) {
1199       _EGLThreadInfo *t = _eglGetCurrentThread();
1200       EGLint api_index = t->CurrentAPIIndex;
1201       EGLint i;
1202
1203       for (i = 0; i < _EGL_API_NUM_APIS; i++) {
1204          _EGLContext *ctx = t->CurrentContexts[i];
1205          if (ctx) {
1206             _EGLDisplay *disp = ctx->Resource.Display;
1207             _EGLDriver *drv;
1208
1209             t->CurrentAPIIndex = i;
1210
1211             _eglLockMutex(&disp->Mutex);
1212             drv = disp->Driver;
1213             (void) drv->API.MakeCurrent(drv, disp, NULL, NULL, NULL);
1214             _eglUnlockMutex(&disp->Mutex);
1215          }
1216       }
1217
1218       t->CurrentAPIIndex = api_index;
1219    }
1220
1221    _eglDestroyCurrentThread();
1222
1223    RETURN_EGL_SUCCESS(NULL, EGL_TRUE);
1224 }
1225
1226
1227 #endif /* EGL_VERSION_1_2 */
1228
1229
1230 #ifdef EGL_KHR_image_base
1231
1232
1233 EGLImageKHR
1234 eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
1235                   EGLClientBuffer buffer, const EGLint *attr_list)
1236 {
1237    _EGLDisplay *disp = _eglLockDisplay(dpy);
1238    _EGLContext *context = _eglLookupContext(ctx, disp);
1239    _EGLDriver *drv;
1240    _EGLImage *img;
1241    EGLImageKHR ret;
1242
1243    _EGL_CHECK_DISPLAY(disp, EGL_NO_IMAGE_KHR, drv);
1244    if (!context && ctx != EGL_NO_CONTEXT)
1245       RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR);
1246
1247    img = drv->API.CreateImageKHR(drv,
1248          disp, context, target, buffer, attr_list);
1249    ret = (img) ? _eglLinkImage(img, disp) : EGL_NO_IMAGE_KHR;
1250
1251    RETURN_EGL_EVAL(disp, ret);
1252 }
1253
1254
1255 EGLBoolean
1256 eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR image)
1257 {
1258    _EGLDisplay *disp = _eglLockDisplay(dpy);
1259    _EGLImage *img = _eglLookupImage(image, disp);
1260    _EGLDriver *drv;
1261    EGLBoolean ret;
1262
1263    _EGL_CHECK_DISPLAY(disp, EGL_FALSE, drv);
1264    if (!img)
1265       RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_FALSE);
1266
1267    _eglUnlinkImage(img);
1268    ret = drv->API.DestroyImageKHR(drv, disp, img);
1269
1270    RETURN_EGL_EVAL(disp, ret);
1271 }
1272
1273
1274 #endif /* EGL_KHR_image_base */
1275
1276
1277 #ifdef EGL_NOK_swap_region
1278
1279 EGLBoolean
1280 eglSwapBuffersRegionNOK(EGLDisplay dpy, EGLSurface surface,
1281                         EGLint numRects, const EGLint *rects)
1282 {
1283    _EGLContext *ctx = _eglGetCurrentContext();
1284    _EGLDisplay *disp = _eglLockDisplay(dpy);
1285    _EGLSurface *surf = _eglLookupSurface(surface, disp);
1286    _EGLDriver *drv;
1287    EGLBoolean ret;
1288
1289    _EGL_CHECK_SURFACE(disp, surf, EGL_FALSE, drv);
1290
1291    /* surface must be bound to current context in EGL 1.4 */
1292    if (!ctx || !_eglIsContextLinked(ctx) || surf != ctx->DrawSurface)
1293       RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
1294
1295    if (drv->API.SwapBuffersRegionNOK)
1296       ret = drv->API.SwapBuffersRegionNOK(drv, disp, surf, numRects, rects);
1297    else
1298       ret = drv->API.SwapBuffers(drv, disp, surf);
1299
1300    RETURN_EGL_EVAL(disp, ret);
1301 }
1302
1303 #endif /* EGL_NOK_swap_region */