egl.cpp revision 85f33a7168c5563aa7765b91d5d045fe62bcfcd8
1/* 2 ** Copyright 2007, The Android Open Source Project 3 ** 4 ** Licensed under the Apache License, Version 2.0 (the "License"); 5 ** you may not use this file except in compliance with the License. 6 ** You may obtain a copy of the License at 7 ** 8 ** http://www.apache.org/licenses/LICENSE-2.0 9 ** 10 ** Unless required by applicable law or agreed to in writing, software 11 ** distributed under the License is distributed on an "AS IS" BASIS, 12 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 ** See the License for the specific language governing permissions and 14 ** limitations under the License. 15 */ 16 17#include <ctype.h> 18#include <stdlib.h> 19#include <string.h> 20#include <errno.h> 21#include <dlfcn.h> 22 23#include <sys/ioctl.h> 24 25#ifdef HAVE_ANDROID_OS 26#include <linux/android_pmem.h> 27#endif 28 29#include <EGL/egl.h> 30#include <EGL/eglext.h> 31#include <GLES/gl.h> 32#include <GLES/glext.h> 33 34#include <cutils/log.h> 35#include <cutils/atomic.h> 36#include <cutils/properties.h> 37#include <cutils/memory.h> 38 39#include <utils/SortedVector.h> 40#include <utils/KeyedVector.h> 41#include <utils/String8.h> 42 43#include <ui/egl/android_natives.h> 44 45#include "hooks.h" 46#include "egl_impl.h" 47#include "Loader.h" 48#include "glesv2dbg.h" 49 50#define setError(_e, _r) setErrorEtc(__FUNCTION__, __LINE__, _e, _r) 51 52// ---------------------------------------------------------------------------- 53namespace android { 54// ---------------------------------------------------------------------------- 55 56#define VERSION_MAJOR 1 57#define VERSION_MINOR 4 58static char const * const gVendorString = "Android"; 59static char const * const gVersionString = "1.4 Android META-EGL"; 60static char const * const gClientApiString = "OpenGL ES"; 61static char const * const gExtensionString = 62 "EGL_KHR_image " 63 "EGL_KHR_image_base " 64 "EGL_KHR_image_pixmap " 65 "EGL_KHR_gl_texture_2D_image " 66 "EGL_KHR_gl_texture_cubemap_image " 67 "EGL_KHR_gl_renderbuffer_image " 68 "EGL_KHR_fence_sync " 69 "EGL_ANDROID_image_native_buffer " 70 "EGL_ANDROID_swap_rectangle " 71 ; 72 73// ---------------------------------------------------------------------------- 74 75class egl_object_t { 76 static SortedVector<egl_object_t*> sObjects; 77 static Mutex sLock; 78 79 volatile int32_t terminated; 80 mutable volatile int32_t count; 81 82public: 83 egl_object_t() : terminated(0), count(1) { 84 Mutex::Autolock _l(sLock); 85 sObjects.add(this); 86 } 87 88 inline bool isAlive() const { return !terminated; } 89 90private: 91 bool get() { 92 Mutex::Autolock _l(sLock); 93 if (egl_object_t::sObjects.indexOf(this) >= 0) { 94 android_atomic_inc(&count); 95 return true; 96 } 97 return false; 98 } 99 100 bool put() { 101 Mutex::Autolock _l(sLock); 102 if (android_atomic_dec(&count) == 1) { 103 sObjects.remove(this); 104 return true; 105 } 106 return false; 107 } 108 109public: 110 template <typename N, typename T> 111 struct LocalRef { 112 N* ref; 113 LocalRef(T o) : ref(0) { 114 N* native = reinterpret_cast<N*>(o); 115 if (o && native->get()) { 116 ref = native; 117 } 118 } 119 ~LocalRef() { 120 if (ref && ref->put()) { 121 delete ref; 122 } 123 } 124 inline N* get() { 125 return ref; 126 } 127 void acquire() const { 128 if (ref) { 129 android_atomic_inc(&ref->count); 130 } 131 } 132 void release() const { 133 if (ref) { 134 int32_t c = android_atomic_dec(&ref->count); 135 // ref->count cannot be 1 prior atomic_dec because we have 136 // a reference, and if we have one, it means there was 137 // already one before us. 138 LOGE_IF(c==1, "refcount is now 0 in release()"); 139 } 140 } 141 void terminate() { 142 if (ref) { 143 ref->terminated = 1; 144 release(); 145 } 146 } 147 }; 148}; 149 150SortedVector<egl_object_t*> egl_object_t::sObjects; 151Mutex egl_object_t::sLock; 152 153 154struct egl_config_t { 155 egl_config_t() {} 156 egl_config_t(int impl, EGLConfig config) 157 : impl(impl), config(config), configId(0), implConfigId(0) { } 158 int impl; // the implementation this config is for 159 EGLConfig config; // the implementation's EGLConfig 160 EGLint configId; // our CONFIG_ID 161 EGLint implConfigId; // the implementation's CONFIG_ID 162 inline bool operator < (const egl_config_t& rhs) const { 163 if (impl < rhs.impl) return true; 164 if (impl > rhs.impl) return false; 165 return config < rhs.config; 166 } 167}; 168 169struct egl_display_t { 170 enum { NOT_INITIALIZED, INITIALIZED, TERMINATED }; 171 172 struct strings_t { 173 char const * vendor; 174 char const * version; 175 char const * clientApi; 176 char const * extensions; 177 }; 178 179 struct DisplayImpl { 180 DisplayImpl() : dpy(EGL_NO_DISPLAY), config(0), 181 state(NOT_INITIALIZED), numConfigs(0) { } 182 EGLDisplay dpy; 183 EGLConfig* config; 184 EGLint state; 185 EGLint numConfigs; 186 strings_t queryString; 187 }; 188 189 uint32_t magic; 190 DisplayImpl disp[IMPL_NUM_IMPLEMENTATIONS]; 191 EGLint numTotalConfigs; 192 egl_config_t* configs; 193 uint32_t refs; 194 Mutex lock; 195 196 egl_display_t() : magic('_dpy'), numTotalConfigs(0), configs(0) { } 197 ~egl_display_t() { magic = 0; } 198 inline bool isValid() const { return magic == '_dpy'; } 199 inline bool isAlive() const { return isValid(); } 200}; 201 202struct egl_surface_t : public egl_object_t 203{ 204 typedef egl_object_t::LocalRef<egl_surface_t, EGLSurface> Ref; 205 206 egl_surface_t(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType win, 207 EGLSurface surface, int impl, egl_connection_t const* cnx) 208 : dpy(dpy), surface(surface), config(config), win(win), impl(impl), cnx(cnx) { 209 } 210 ~egl_surface_t() { 211 } 212 EGLDisplay dpy; 213 EGLSurface surface; 214 EGLConfig config; 215 sp<ANativeWindow> win; 216 int impl; 217 egl_connection_t const* cnx; 218}; 219 220struct egl_context_t : public egl_object_t 221{ 222 typedef egl_object_t::LocalRef<egl_context_t, EGLContext> Ref; 223 224 egl_context_t(EGLDisplay dpy, EGLContext context, EGLConfig config, 225 int impl, egl_connection_t const* cnx, int version) 226 : dpy(dpy), context(context), config(config), read(0), draw(0), impl(impl), 227 cnx(cnx), version(version), dbg(NULL) 228 { 229 } 230 ~egl_context_t() 231 { 232 if (dbg) 233 DestroyDbgContext(dbg); 234 dbg = NULL; 235 } 236 EGLDisplay dpy; 237 EGLContext context; 238 EGLConfig config; 239 EGLSurface read; 240 EGLSurface draw; 241 int impl; 242 egl_connection_t const* cnx; 243 int version; 244 DbgContext * dbg; 245}; 246 247struct egl_image_t : public egl_object_t 248{ 249 typedef egl_object_t::LocalRef<egl_image_t, EGLImageKHR> Ref; 250 251 egl_image_t(EGLDisplay dpy, EGLContext context) 252 : dpy(dpy), context(context) 253 { 254 memset(images, 0, sizeof(images)); 255 } 256 EGLDisplay dpy; 257 EGLContext context; 258 EGLImageKHR images[IMPL_NUM_IMPLEMENTATIONS]; 259}; 260 261struct egl_sync_t : public egl_object_t 262{ 263 typedef egl_object_t::LocalRef<egl_sync_t, EGLSyncKHR> Ref; 264 265 egl_sync_t(EGLDisplay dpy, EGLContext context, EGLSyncKHR sync) 266 : dpy(dpy), context(context), sync(sync) 267 { 268 } 269 EGLDisplay dpy; 270 EGLContext context; 271 EGLSyncKHR sync; 272}; 273 274typedef egl_surface_t::Ref SurfaceRef; 275typedef egl_context_t::Ref ContextRef; 276typedef egl_image_t::Ref ImageRef; 277typedef egl_sync_t::Ref SyncRef; 278 279struct tls_t 280{ 281 tls_t() : error(EGL_SUCCESS), ctx(0), logCallWithNoContext(EGL_TRUE) { } 282 EGLint error; 283 EGLContext ctx; 284 EGLBoolean logCallWithNoContext; 285}; 286 287 288// ---------------------------------------------------------------------------- 289 290static egl_connection_t gEGLImpl[IMPL_NUM_IMPLEMENTATIONS]; 291static egl_display_t gDisplay[NUM_DISPLAYS]; 292static pthread_mutex_t gThreadLocalStorageKeyMutex = PTHREAD_MUTEX_INITIALIZER; 293static pthread_key_t gEGLThreadLocalStorageKey = -1; 294 295// ---------------------------------------------------------------------------- 296 297EGLAPI gl_hooks_t gHooks[2][IMPL_NUM_IMPLEMENTATIONS]; 298EGLAPI gl_hooks_t gHooksNoContext; 299EGLAPI pthread_key_t gGLWrapperKey = -1; 300 301#if EGL_TRACE 302 303EGLAPI pthread_key_t gGLTraceKey = -1; 304 305// ---------------------------------------------------------------------------- 306 307static int gEGLTraceLevel, gEGLDebugLevel; 308static int gEGLApplicationTraceLevel; 309extern EGLAPI gl_hooks_t gHooksTrace, gHooksDebug; 310 311static inline void setGlTraceThreadSpecific(gl_hooks_t const *value) { 312 pthread_setspecific(gGLTraceKey, value); 313} 314 315gl_hooks_t const* getGLTraceThreadSpecific() { 316 return static_cast<gl_hooks_t*>(pthread_getspecific(gGLTraceKey)); 317} 318 319static void initEglTraceLevel() { 320 char value[PROPERTY_VALUE_MAX]; 321 property_get("debug.egl.trace", value, "0"); 322 int propertyLevel = atoi(value); 323 int applicationLevel = gEGLApplicationTraceLevel; 324 gEGLTraceLevel = propertyLevel > applicationLevel ? propertyLevel : applicationLevel; 325 326 property_get("debug.egl.debug_proc", value, ""); 327 long pid = getpid(); 328 char procPath[128] = {}; 329 sprintf(procPath, "/proc/%ld/cmdline", pid); 330 FILE * file = fopen(procPath, "r"); 331 if (file) 332 { 333 char cmdline[256] = {}; 334 if (fgets(cmdline, sizeof(cmdline) - 1, file)) 335 { 336 if (!strcmp(value, cmdline)) 337 gEGLDebugLevel = 1; 338 } 339 fclose(file); 340 } 341 342 if (gEGLDebugLevel > 0) 343 { 344 property_get("debug.egl.debug_port", value, "5039"); 345 StartDebugServer(atoi(value)); 346 } 347} 348 349static void setGLHooksThreadSpecific(gl_hooks_t const *value) { 350 if (gEGLTraceLevel > 0) { 351 setGlTraceThreadSpecific(value); 352 setGlThreadSpecific(&gHooksTrace); 353 } else if (gEGLDebugLevel > 0 && value != &gHooksNoContext) { 354 setGlTraceThreadSpecific(value); 355 setGlThreadSpecific(&gHooksDebug); 356 } else { 357 setGlThreadSpecific(value); 358 } 359} 360 361/* 362 * Global entry point to allow applications to modify their own trace level. 363 * The effective trace level is the max of this level and the value of debug.egl.trace. 364 */ 365extern "C" 366void setGLTraceLevel(int level) { 367 gEGLApplicationTraceLevel = level; 368} 369 370#else 371 372static inline void setGLHooksThreadSpecific(gl_hooks_t const *value) { 373 setGlThreadSpecific(value); 374} 375 376#endif 377 378// ---------------------------------------------------------------------------- 379 380static __attribute__((noinline)) 381const char *egl_strerror(EGLint err) 382{ 383 switch (err){ 384 case EGL_SUCCESS: return "EGL_SUCCESS"; 385 case EGL_NOT_INITIALIZED: return "EGL_NOT_INITIALIZED"; 386 case EGL_BAD_ACCESS: return "EGL_BAD_ACCESS"; 387 case EGL_BAD_ALLOC: return "EGL_BAD_ALLOC"; 388 case EGL_BAD_ATTRIBUTE: return "EGL_BAD_ATTRIBUTE"; 389 case EGL_BAD_CONFIG: return "EGL_BAD_CONFIG"; 390 case EGL_BAD_CONTEXT: return "EGL_BAD_CONTEXT"; 391 case EGL_BAD_CURRENT_SURFACE: return "EGL_BAD_CURRENT_SURFACE"; 392 case EGL_BAD_DISPLAY: return "EGL_BAD_DISPLAY"; 393 case EGL_BAD_MATCH: return "EGL_BAD_MATCH"; 394 case EGL_BAD_NATIVE_PIXMAP: return "EGL_BAD_NATIVE_PIXMAP"; 395 case EGL_BAD_NATIVE_WINDOW: return "EGL_BAD_NATIVE_WINDOW"; 396 case EGL_BAD_PARAMETER: return "EGL_BAD_PARAMETER"; 397 case EGL_BAD_SURFACE: return "EGL_BAD_SURFACE"; 398 case EGL_CONTEXT_LOST: return "EGL_CONTEXT_LOST"; 399 default: return "UNKNOWN"; 400 } 401} 402 403static __attribute__((noinline)) 404void clearTLS() { 405 if (gEGLThreadLocalStorageKey != -1) { 406 tls_t* tls = (tls_t*)pthread_getspecific(gEGLThreadLocalStorageKey); 407 if (tls) { 408 delete tls; 409 pthread_setspecific(gEGLThreadLocalStorageKey, 0); 410 } 411 } 412} 413 414static tls_t* getTLS() 415{ 416 tls_t* tls = (tls_t*)pthread_getspecific(gEGLThreadLocalStorageKey); 417 if (tls == 0) { 418 tls = new tls_t; 419 pthread_setspecific(gEGLThreadLocalStorageKey, tls); 420 } 421 return tls; 422} 423 424static inline void clearError() { 425 // This must clear the error from all the underlying EGL implementations as 426 // well as the EGL wrapper layer. 427 eglGetError(); 428} 429 430template<typename T> 431static __attribute__((noinline)) 432T setErrorEtc(const char* caller, int line, EGLint error, T returnValue) { 433 if (gEGLThreadLocalStorageKey == -1) { 434 pthread_mutex_lock(&gThreadLocalStorageKeyMutex); 435 if (gEGLThreadLocalStorageKey == -1) 436 pthread_key_create(&gEGLThreadLocalStorageKey, NULL); 437 pthread_mutex_unlock(&gThreadLocalStorageKeyMutex); 438 } 439 tls_t* tls = getTLS(); 440 if (tls->error != error) { 441 LOGE("%s:%d error %x (%s)", caller, line, error, egl_strerror(error)); 442 tls->error = error; 443 } 444 return returnValue; 445} 446 447static __attribute__((noinline)) 448GLint getError() { 449 if (gEGLThreadLocalStorageKey == -1) 450 return EGL_SUCCESS; 451 tls_t* tls = (tls_t*)pthread_getspecific(gEGLThreadLocalStorageKey); 452 if (!tls) return EGL_SUCCESS; 453 GLint error = tls->error; 454 tls->error = EGL_SUCCESS; 455 return error; 456} 457 458static __attribute__((noinline)) 459void setContext(EGLContext ctx) { 460 if (gEGLThreadLocalStorageKey == -1) { 461 pthread_mutex_lock(&gThreadLocalStorageKeyMutex); 462 if (gEGLThreadLocalStorageKey == -1) 463 pthread_key_create(&gEGLThreadLocalStorageKey, NULL); 464 pthread_mutex_unlock(&gThreadLocalStorageKeyMutex); 465 } 466 tls_t* tls = getTLS(); 467 tls->ctx = ctx; 468} 469 470static __attribute__((noinline)) 471EGLContext getContext() { 472 if (gEGLThreadLocalStorageKey == -1) 473 return EGL_NO_CONTEXT; 474 tls_t* tls = (tls_t*)pthread_getspecific(gEGLThreadLocalStorageKey); 475 if (!tls) return EGL_NO_CONTEXT; 476 return tls->ctx; 477} 478 479/*****************************************************************************/ 480 481template<typename T> 482static __attribute__((noinline)) 483int binarySearch( 484 T const sortedArray[], int first, int last, T key) 485{ 486 while (first <= last) { 487 int mid = (first + last) / 2; 488 if (sortedArray[mid] < key) { 489 first = mid + 1; 490 } else if (key < sortedArray[mid]) { 491 last = mid - 1; 492 } else { 493 return mid; 494 } 495 } 496 return -1; 497} 498 499static int cmp_configs(const void* a, const void *b) 500{ 501 const egl_config_t& c0 = *(egl_config_t const *)a; 502 const egl_config_t& c1 = *(egl_config_t const *)b; 503 return c0<c1 ? -1 : (c1<c0 ? 1 : 0); 504} 505 506struct extention_map_t { 507 const char* name; 508 __eglMustCastToProperFunctionPointerType address; 509}; 510 511static const extention_map_t gExtentionMap[] = { 512 { "eglLockSurfaceKHR", 513 (__eglMustCastToProperFunctionPointerType)&eglLockSurfaceKHR }, 514 { "eglUnlockSurfaceKHR", 515 (__eglMustCastToProperFunctionPointerType)&eglUnlockSurfaceKHR }, 516 { "eglCreateImageKHR", 517 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, 518 { "eglDestroyImageKHR", 519 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, 520 { "eglSetSwapRectangleANDROID", 521 (__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID }, 522}; 523 524extern const __eglMustCastToProperFunctionPointerType gExtensionForwarders[MAX_NUMBER_OF_GL_EXTENSIONS]; 525 526// accesses protected by gInitDriverMutex 527static DefaultKeyedVector<String8, __eglMustCastToProperFunctionPointerType> gGLExtentionMap; 528static int gGLExtentionSlot = 0; 529 530static void(*findProcAddress(const char* name, 531 const extention_map_t* map, size_t n))() 532{ 533 for (uint32_t i=0 ; i<n ; i++) { 534 if (!strcmp(name, map[i].name)) { 535 return map[i].address; 536 } 537 } 538 return NULL; 539} 540 541// ---------------------------------------------------------------------------- 542 543static int gl_no_context() { 544 tls_t* tls = getTLS(); 545 if (tls->logCallWithNoContext == EGL_TRUE) { 546 tls->logCallWithNoContext = EGL_FALSE; 547 LOGE("call to OpenGL ES API with no current context " 548 "(logged once per thread)"); 549 } 550 return 0; 551} 552 553static void early_egl_init(void) 554{ 555#if !USE_FAST_TLS_KEY 556 pthread_key_create(&gGLWrapperKey, NULL); 557#endif 558#if EGL_TRACE 559 pthread_key_create(&gGLTraceKey, NULL); 560 initEglTraceLevel(); 561#endif 562 uint32_t addr = (uint32_t)((void*)gl_no_context); 563 android_memset32( 564 (uint32_t*)(void*)&gHooksNoContext, 565 addr, 566 sizeof(gHooksNoContext)); 567 568 setGLHooksThreadSpecific(&gHooksNoContext); 569} 570 571static pthread_once_t once_control = PTHREAD_ONCE_INIT; 572static int sEarlyInitState = pthread_once(&once_control, &early_egl_init); 573 574 575static inline 576egl_display_t* get_display(EGLDisplay dpy) 577{ 578 uintptr_t index = uintptr_t(dpy)-1U; 579 return (index >= NUM_DISPLAYS) ? NULL : &gDisplay[index]; 580} 581 582template<typename NATIVE, typename EGL> 583static inline NATIVE* egl_to_native_cast(EGL arg) { 584 return reinterpret_cast<NATIVE*>(arg); 585} 586 587static inline 588egl_surface_t* get_surface(EGLSurface surface) { 589 return egl_to_native_cast<egl_surface_t>(surface); 590} 591 592static inline 593egl_context_t* get_context(EGLContext context) { 594 return egl_to_native_cast<egl_context_t>(context); 595} 596 597DbgContext * getDbgContextThreadSpecific() 598{ 599 return get_context(getContext())->dbg; 600} 601 602static inline 603egl_image_t* get_image(EGLImageKHR image) { 604 return egl_to_native_cast<egl_image_t>(image); 605} 606 607static inline 608egl_sync_t* get_sync(EGLSyncKHR sync) { 609 return egl_to_native_cast<egl_sync_t>(sync); 610} 611 612static egl_connection_t* validate_display_config( 613 EGLDisplay dpy, EGLConfig config, 614 egl_display_t const*& dp) 615{ 616 dp = get_display(dpy); 617 if (!dp) return setError(EGL_BAD_DISPLAY, (egl_connection_t*)NULL); 618 619 if (intptr_t(config) >= dp->numTotalConfigs) { 620 return setError(EGL_BAD_CONFIG, (egl_connection_t*)NULL); 621 } 622 egl_connection_t* const cnx = &gEGLImpl[dp->configs[intptr_t(config)].impl]; 623 if (cnx->dso == 0) { 624 return setError(EGL_BAD_CONFIG, (egl_connection_t*)NULL); 625 } 626 return cnx; 627} 628 629static EGLBoolean validate_display_context(EGLDisplay dpy, EGLContext ctx) 630{ 631 if ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) 632 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 633 if (!get_display(dpy)->isAlive()) 634 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 635 if (!get_context(ctx)->isAlive()) 636 return setError(EGL_BAD_CONTEXT, EGL_FALSE); 637 return EGL_TRUE; 638} 639 640static EGLBoolean validate_display_surface(EGLDisplay dpy, EGLSurface surface) 641{ 642 if ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS) 643 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 644 if (!get_display(dpy)->isAlive()) 645 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 646 if (!get_surface(surface)->isAlive()) 647 return setError(EGL_BAD_SURFACE, EGL_FALSE); 648 return EGL_TRUE; 649} 650 651EGLImageKHR egl_get_image_for_current_context(EGLImageKHR image) 652{ 653 ImageRef _i(image); 654 if (!_i.get()) return EGL_NO_IMAGE_KHR; 655 656 EGLContext context = getContext(); 657 if (context == EGL_NO_CONTEXT || image == EGL_NO_IMAGE_KHR) 658 return EGL_NO_IMAGE_KHR; 659 660 egl_context_t const * const c = get_context(context); 661 if (!c->isAlive()) 662 return EGL_NO_IMAGE_KHR; 663 664 egl_image_t const * const i = get_image(image); 665 return i->images[c->impl]; 666} 667 668// ---------------------------------------------------------------------------- 669 670// this mutex protects: 671// d->disp[] 672// egl_init_drivers_locked() 673// 674static pthread_mutex_t gInitDriverMutex = PTHREAD_MUTEX_INITIALIZER; 675 676EGLBoolean egl_init_drivers_locked() 677{ 678 if (sEarlyInitState) { 679 // initialized by static ctor. should be set here. 680 return EGL_FALSE; 681 } 682 683 // get our driver loader 684 Loader& loader(Loader::getInstance()); 685 686 // dynamically load all our EGL implementations for all displays 687 // and retrieve the corresponding EGLDisplay 688 // if that fails, don't use this driver. 689 // TODO: currently we only deal with EGL_DEFAULT_DISPLAY 690 egl_connection_t* cnx; 691 egl_display_t* d = &gDisplay[0]; 692 693 cnx = &gEGLImpl[IMPL_SOFTWARE]; 694 if (cnx->dso == 0) { 695 cnx->hooks[GLESv1_INDEX] = &gHooks[GLESv1_INDEX][IMPL_SOFTWARE]; 696 cnx->hooks[GLESv2_INDEX] = &gHooks[GLESv2_INDEX][IMPL_SOFTWARE]; 697 cnx->dso = loader.open(EGL_DEFAULT_DISPLAY, 0, cnx); 698 if (cnx->dso) { 699 EGLDisplay dpy = cnx->egl.eglGetDisplay(EGL_DEFAULT_DISPLAY); 700 LOGE_IF(dpy==EGL_NO_DISPLAY, "No EGLDisplay for software EGL!"); 701 d->disp[IMPL_SOFTWARE].dpy = dpy; 702 if (dpy == EGL_NO_DISPLAY) { 703 loader.close(cnx->dso); 704 cnx->dso = NULL; 705 } 706 } 707 } 708 709 cnx = &gEGLImpl[IMPL_HARDWARE]; 710 if (cnx->dso == 0) { 711 char value[PROPERTY_VALUE_MAX]; 712 property_get("debug.egl.hw", value, "1"); 713 if (atoi(value) != 0) { 714 cnx->hooks[GLESv1_INDEX] = &gHooks[GLESv1_INDEX][IMPL_HARDWARE]; 715 cnx->hooks[GLESv2_INDEX] = &gHooks[GLESv2_INDEX][IMPL_HARDWARE]; 716 cnx->dso = loader.open(EGL_DEFAULT_DISPLAY, 1, cnx); 717 if (cnx->dso) { 718 EGLDisplay dpy = cnx->egl.eglGetDisplay(EGL_DEFAULT_DISPLAY); 719 LOGE_IF(dpy==EGL_NO_DISPLAY, "No EGLDisplay for hardware EGL!"); 720 d->disp[IMPL_HARDWARE].dpy = dpy; 721 if (dpy == EGL_NO_DISPLAY) { 722 loader.close(cnx->dso); 723 cnx->dso = NULL; 724 } 725 } 726 } else { 727 LOGD("3D hardware acceleration is disabled"); 728 } 729 } 730 731 if (!gEGLImpl[IMPL_SOFTWARE].dso && !gEGLImpl[IMPL_HARDWARE].dso) { 732 return EGL_FALSE; 733 } 734 735 return EGL_TRUE; 736} 737 738EGLBoolean egl_init_drivers() 739{ 740 EGLBoolean res; 741 pthread_mutex_lock(&gInitDriverMutex); 742 res = egl_init_drivers_locked(); 743 pthread_mutex_unlock(&gInitDriverMutex); 744 return res; 745} 746 747// ---------------------------------------------------------------------------- 748}; // namespace android 749// ---------------------------------------------------------------------------- 750 751using namespace android; 752 753EGLDisplay eglGetDisplay(NativeDisplayType display) 754{ 755 clearError(); 756 757 uint32_t index = uint32_t(display); 758 if (index >= NUM_DISPLAYS) { 759 return setError(EGL_BAD_PARAMETER, EGL_NO_DISPLAY); 760 } 761 762 if (egl_init_drivers() == EGL_FALSE) { 763 return setError(EGL_BAD_PARAMETER, EGL_NO_DISPLAY); 764 } 765 766 EGLDisplay dpy = EGLDisplay(uintptr_t(display) + 1LU); 767 return dpy; 768} 769 770// ---------------------------------------------------------------------------- 771// Initialization 772// ---------------------------------------------------------------------------- 773 774EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) 775{ 776 clearError(); 777 778 egl_display_t * const dp = get_display(dpy); 779 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE); 780 781 Mutex::Autolock _l(dp->lock); 782 783 if (dp->refs > 0) { 784 if (major != NULL) *major = VERSION_MAJOR; 785 if (minor != NULL) *minor = VERSION_MINOR; 786 dp->refs++; 787 return EGL_TRUE; 788 } 789 790#if EGL_TRACE 791 792 // Called both at early_init time and at this time. (Early_init is pre-zygote, so 793 // the information from that call may be stale.) 794 initEglTraceLevel(); 795 796#endif 797 798 setGLHooksThreadSpecific(&gHooksNoContext); 799 800 // initialize each EGL and 801 // build our own extension string first, based on the extension we know 802 // and the extension supported by our client implementation 803 for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) { 804 egl_connection_t* const cnx = &gEGLImpl[i]; 805 cnx->major = -1; 806 cnx->minor = -1; 807 if (!cnx->dso) 808 continue; 809 810#if defined(ADRENO130) 811#warning "Adreno-130 eglInitialize() workaround" 812 /* 813 * The ADRENO 130 driver returns a different EGLDisplay each time 814 * eglGetDisplay() is called, but also makes the EGLDisplay invalid 815 * after eglTerminate() has been called, so that eglInitialize() 816 * cannot be called again. Therefore, we need to make sure to call 817 * eglGetDisplay() before calling eglInitialize(); 818 */ 819 if (i == IMPL_HARDWARE) { 820 dp->disp[i].dpy = 821 cnx->egl.eglGetDisplay(EGL_DEFAULT_DISPLAY); 822 } 823#endif 824 825 826 EGLDisplay idpy = dp->disp[i].dpy; 827 if (cnx->egl.eglInitialize(idpy, &cnx->major, &cnx->minor)) { 828 //LOGD("initialized %d dpy=%p, ver=%d.%d, cnx=%p", 829 // i, idpy, cnx->major, cnx->minor, cnx); 830 831 // display is now initialized 832 dp->disp[i].state = egl_display_t::INITIALIZED; 833 834 // get the query-strings for this display for each implementation 835 dp->disp[i].queryString.vendor = 836 cnx->egl.eglQueryString(idpy, EGL_VENDOR); 837 dp->disp[i].queryString.version = 838 cnx->egl.eglQueryString(idpy, EGL_VERSION); 839 dp->disp[i].queryString.extensions = 840 cnx->egl.eglQueryString(idpy, EGL_EXTENSIONS); 841 dp->disp[i].queryString.clientApi = 842 cnx->egl.eglQueryString(idpy, EGL_CLIENT_APIS); 843 844 } else { 845 LOGW("%d: eglInitialize(%p) failed (%s)", i, idpy, 846 egl_strerror(cnx->egl.eglGetError())); 847 } 848 } 849 850 EGLBoolean res = EGL_FALSE; 851 for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) { 852 egl_connection_t* const cnx = &gEGLImpl[i]; 853 if (cnx->dso && cnx->major>=0 && cnx->minor>=0) { 854 EGLint n; 855 if (cnx->egl.eglGetConfigs(dp->disp[i].dpy, 0, 0, &n)) { 856 dp->disp[i].config = (EGLConfig*)malloc(sizeof(EGLConfig)*n); 857 if (dp->disp[i].config) { 858 if (cnx->egl.eglGetConfigs( 859 dp->disp[i].dpy, dp->disp[i].config, n, 860 &dp->disp[i].numConfigs)) 861 { 862 dp->numTotalConfigs += n; 863 res = EGL_TRUE; 864 } 865 } 866 } 867 } 868 } 869 870 if (res == EGL_TRUE) { 871 dp->configs = new egl_config_t[ dp->numTotalConfigs ]; 872 for (int i=0, k=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) { 873 egl_connection_t* const cnx = &gEGLImpl[i]; 874 if (cnx->dso && cnx->major>=0 && cnx->minor>=0) { 875 for (int j=0 ; j<dp->disp[i].numConfigs ; j++) { 876 dp->configs[k].impl = i; 877 dp->configs[k].config = dp->disp[i].config[j]; 878 dp->configs[k].configId = k + 1; // CONFIG_ID start at 1 879 // store the implementation's CONFIG_ID 880 cnx->egl.eglGetConfigAttrib( 881 dp->disp[i].dpy, 882 dp->disp[i].config[j], 883 EGL_CONFIG_ID, 884 &dp->configs[k].implConfigId); 885 k++; 886 } 887 } 888 } 889 890 // sort our configurations so we can do binary-searches 891 qsort( dp->configs, 892 dp->numTotalConfigs, 893 sizeof(egl_config_t), cmp_configs); 894 895 dp->refs++; 896 if (major != NULL) *major = VERSION_MAJOR; 897 if (minor != NULL) *minor = VERSION_MINOR; 898 return EGL_TRUE; 899 } 900 return setError(EGL_NOT_INITIALIZED, EGL_FALSE); 901} 902 903EGLBoolean eglTerminate(EGLDisplay dpy) 904{ 905 // NOTE: don't unload the drivers b/c some APIs can be called 906 // after eglTerminate() has been called. eglTerminate() only 907 // terminates an EGLDisplay, not a EGL itself. 908 909 clearError(); 910 911 egl_display_t* const dp = get_display(dpy); 912 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE); 913 914 Mutex::Autolock _l(dp->lock); 915 916 if (dp->refs == 0) { 917 return setError(EGL_NOT_INITIALIZED, EGL_FALSE); 918 } 919 920 // this is specific to Android, display termination is ref-counted. 921 if (dp->refs > 1) { 922 dp->refs--; 923 return EGL_TRUE; 924 } 925 926 EGLBoolean res = EGL_FALSE; 927 for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) { 928 egl_connection_t* const cnx = &gEGLImpl[i]; 929 if (cnx->dso && dp->disp[i].state == egl_display_t::INITIALIZED) { 930 if (cnx->egl.eglTerminate(dp->disp[i].dpy) == EGL_FALSE) { 931 LOGW("%d: eglTerminate(%p) failed (%s)", i, dp->disp[i].dpy, 932 egl_strerror(cnx->egl.eglGetError())); 933 } 934 // REVISIT: it's unclear what to do if eglTerminate() fails 935 free(dp->disp[i].config); 936 937 dp->disp[i].numConfigs = 0; 938 dp->disp[i].config = 0; 939 dp->disp[i].state = egl_display_t::TERMINATED; 940 941 res = EGL_TRUE; 942 } 943 } 944 945 // TODO: all egl_object_t should be marked for termination 946 947 dp->refs--; 948 dp->numTotalConfigs = 0; 949 delete [] dp->configs; 950 951 return res; 952} 953 954// ---------------------------------------------------------------------------- 955// configuration 956// ---------------------------------------------------------------------------- 957 958EGLBoolean eglGetConfigs( EGLDisplay dpy, 959 EGLConfig *configs, 960 EGLint config_size, EGLint *num_config) 961{ 962 clearError(); 963 964 egl_display_t const * const dp = get_display(dpy); 965 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE); 966 967 GLint numConfigs = dp->numTotalConfigs; 968 if (!configs) { 969 *num_config = numConfigs; 970 return EGL_TRUE; 971 } 972 973 GLint n = 0; 974 for (intptr_t i=0 ; i<dp->numTotalConfigs && config_size ; i++) { 975 *configs++ = EGLConfig(i); 976 config_size--; 977 n++; 978 } 979 980 *num_config = n; 981 return EGL_TRUE; 982} 983 984EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, 985 EGLConfig *configs, EGLint config_size, 986 EGLint *num_config) 987{ 988 clearError(); 989 990 egl_display_t const * const dp = get_display(dpy); 991 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE); 992 993 if (num_config==0) { 994 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 995 } 996 997 EGLint n; 998 EGLBoolean res = EGL_FALSE; 999 *num_config = 0; 1000 1001 1002 // It is unfortunate, but we need to remap the EGL_CONFIG_IDs, 1003 // to do this, we have to go through the attrib_list array once 1004 // to figure out both its size and if it contains an EGL_CONFIG_ID 1005 // key. If so, the full array is copied and patched. 1006 // NOTE: we assume that there can be only one occurrence 1007 // of EGL_CONFIG_ID. 1008 1009 EGLint patch_index = -1; 1010 GLint attr; 1011 size_t size = 0; 1012 if (attrib_list) { 1013 while ((attr=attrib_list[size]) != EGL_NONE) { 1014 if (attr == EGL_CONFIG_ID) 1015 patch_index = size; 1016 size += 2; 1017 } 1018 } 1019 if (patch_index >= 0) { 1020 size += 2; // we need copy the sentinel as well 1021 EGLint* new_list = (EGLint*)malloc(size*sizeof(EGLint)); 1022 if (new_list == 0) 1023 return setError(EGL_BAD_ALLOC, EGL_FALSE); 1024 memcpy(new_list, attrib_list, size*sizeof(EGLint)); 1025 1026 // patch the requested EGL_CONFIG_ID 1027 bool found = false; 1028 EGLConfig ourConfig(0); 1029 EGLint& configId(new_list[patch_index+1]); 1030 for (intptr_t i=0 ; i<dp->numTotalConfigs ; i++) { 1031 if (dp->configs[i].configId == configId) { 1032 ourConfig = EGLConfig(i); 1033 configId = dp->configs[i].implConfigId; 1034 found = true; 1035 break; 1036 } 1037 } 1038 1039 egl_connection_t* const cnx = &gEGLImpl[dp->configs[intptr_t(ourConfig)].impl]; 1040 if (found && cnx->dso) { 1041 // and switch to the new list 1042 attrib_list = const_cast<const EGLint *>(new_list); 1043 1044 // At this point, the only configuration that can match is 1045 // dp->configs[i][index], however, we don't know if it would be 1046 // rejected because of the other attributes, so we do have to call 1047 // cnx->egl.eglChooseConfig() -- but we don't have to loop 1048 // through all the EGLimpl[]. 1049 // We also know we can only get a single config back, and we know 1050 // which one. 1051 1052 res = cnx->egl.eglChooseConfig( 1053 dp->disp[ dp->configs[intptr_t(ourConfig)].impl ].dpy, 1054 attrib_list, configs, config_size, &n); 1055 if (res && n>0) { 1056 // n has to be 0 or 1, by construction, and we already know 1057 // which config it will return (since there can be only one). 1058 if (configs) { 1059 configs[0] = ourConfig; 1060 } 1061 *num_config = 1; 1062 } 1063 } 1064 1065 free(const_cast<EGLint *>(attrib_list)); 1066 return res; 1067 } 1068 1069 1070 for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) { 1071 egl_connection_t* const cnx = &gEGLImpl[i]; 1072 if (cnx->dso) { 1073 if (cnx->egl.eglChooseConfig( 1074 dp->disp[i].dpy, attrib_list, configs, config_size, &n)) { 1075 if (configs) { 1076 // now we need to convert these client EGLConfig to our 1077 // internal EGLConfig format. 1078 // This is done in O(n Log(n)) time. 1079 for (int j=0 ; j<n ; j++) { 1080 egl_config_t key(i, configs[j]); 1081 intptr_t index = binarySearch<egl_config_t>( 1082 dp->configs, 0, dp->numTotalConfigs, key); 1083 if (index >= 0) { 1084 configs[j] = EGLConfig(index); 1085 } else { 1086 return setError(EGL_BAD_CONFIG, EGL_FALSE); 1087 } 1088 } 1089 configs += n; 1090 config_size -= n; 1091 } 1092 *num_config += n; 1093 res = EGL_TRUE; 1094 } 1095 } 1096 } 1097 return res; 1098} 1099 1100EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, 1101 EGLint attribute, EGLint *value) 1102{ 1103 clearError(); 1104 1105 egl_display_t const* dp = 0; 1106 egl_connection_t* cnx = validate_display_config(dpy, config, dp); 1107 if (!cnx) return EGL_FALSE; 1108 1109 if (attribute == EGL_CONFIG_ID) { 1110 *value = dp->configs[intptr_t(config)].configId; 1111 return EGL_TRUE; 1112 } 1113 return cnx->egl.eglGetConfigAttrib( 1114 dp->disp[ dp->configs[intptr_t(config)].impl ].dpy, 1115 dp->configs[intptr_t(config)].config, attribute, value); 1116} 1117 1118// ---------------------------------------------------------------------------- 1119// surfaces 1120// ---------------------------------------------------------------------------- 1121 1122EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, 1123 NativeWindowType window, 1124 const EGLint *attrib_list) 1125{ 1126 clearError(); 1127 1128 egl_display_t const* dp = 0; 1129 egl_connection_t* cnx = validate_display_config(dpy, config, dp); 1130 if (cnx) { 1131 EGLDisplay iDpy = dp->disp[ dp->configs[intptr_t(config)].impl ].dpy; 1132 EGLConfig iConfig = dp->configs[intptr_t(config)].config; 1133 EGLint format; 1134 1135 // set the native window's buffers format to match this config 1136 if (cnx->egl.eglGetConfigAttrib(iDpy, 1137 iConfig, EGL_NATIVE_VISUAL_ID, &format)) { 1138 if (format != 0) { 1139 native_window_set_buffers_geometry(window, 0, 0, format); 1140 } 1141 } 1142 1143 EGLSurface surface = cnx->egl.eglCreateWindowSurface( 1144 iDpy, iConfig, window, attrib_list); 1145 if (surface != EGL_NO_SURFACE) { 1146 egl_surface_t* s = new egl_surface_t(dpy, config, window, surface, 1147 dp->configs[intptr_t(config)].impl, cnx); 1148 return s; 1149 } 1150 } 1151 return EGL_NO_SURFACE; 1152} 1153 1154EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, 1155 NativePixmapType pixmap, 1156 const EGLint *attrib_list) 1157{ 1158 clearError(); 1159 1160 egl_display_t const* dp = 0; 1161 egl_connection_t* cnx = validate_display_config(dpy, config, dp); 1162 if (cnx) { 1163 EGLSurface surface = cnx->egl.eglCreatePixmapSurface( 1164 dp->disp[ dp->configs[intptr_t(config)].impl ].dpy, 1165 dp->configs[intptr_t(config)].config, pixmap, attrib_list); 1166 if (surface != EGL_NO_SURFACE) { 1167 egl_surface_t* s = new egl_surface_t(dpy, config, NULL, surface, 1168 dp->configs[intptr_t(config)].impl, cnx); 1169 return s; 1170 } 1171 } 1172 return EGL_NO_SURFACE; 1173} 1174 1175EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, 1176 const EGLint *attrib_list) 1177{ 1178 clearError(); 1179 1180 egl_display_t const* dp = 0; 1181 egl_connection_t* cnx = validate_display_config(dpy, config, dp); 1182 if (cnx) { 1183 EGLSurface surface = cnx->egl.eglCreatePbufferSurface( 1184 dp->disp[ dp->configs[intptr_t(config)].impl ].dpy, 1185 dp->configs[intptr_t(config)].config, attrib_list); 1186 if (surface != EGL_NO_SURFACE) { 1187 egl_surface_t* s = new egl_surface_t(dpy, config, NULL, surface, 1188 dp->configs[intptr_t(config)].impl, cnx); 1189 return s; 1190 } 1191 } 1192 return EGL_NO_SURFACE; 1193} 1194 1195EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface surface) 1196{ 1197 clearError(); 1198 1199 SurfaceRef _s(surface); 1200 if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); 1201 1202 if (!validate_display_surface(dpy, surface)) 1203 return EGL_FALSE; 1204 egl_display_t const * const dp = get_display(dpy); 1205 1206 egl_surface_t * const s = get_surface(surface); 1207 EGLBoolean result = s->cnx->egl.eglDestroySurface( 1208 dp->disp[s->impl].dpy, s->surface); 1209 if (result == EGL_TRUE) { 1210 if (s->win != NULL) { 1211 native_window_set_buffers_geometry(s->win.get(), 0, 0, 0); 1212 } 1213 _s.terminate(); 1214 } 1215 return result; 1216} 1217 1218EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface surface, 1219 EGLint attribute, EGLint *value) 1220{ 1221 clearError(); 1222 1223 SurfaceRef _s(surface); 1224 if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); 1225 1226 if (!validate_display_surface(dpy, surface)) 1227 return EGL_FALSE; 1228 egl_display_t const * const dp = get_display(dpy); 1229 egl_surface_t const * const s = get_surface(surface); 1230 1231 EGLBoolean result(EGL_TRUE); 1232 if (attribute == EGL_CONFIG_ID) { 1233 // We need to remap EGL_CONFIG_IDs 1234 *value = dp->configs[intptr_t(s->config)].configId; 1235 } else { 1236 result = s->cnx->egl.eglQuerySurface( 1237 dp->disp[s->impl].dpy, s->surface, attribute, value); 1238 } 1239 1240 return result; 1241} 1242 1243// ---------------------------------------------------------------------------- 1244// Contexts 1245// ---------------------------------------------------------------------------- 1246 1247EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, 1248 EGLContext share_list, const EGLint *attrib_list) 1249{ 1250 clearError(); 1251 1252 egl_display_t const* dp = 0; 1253 egl_connection_t* cnx = validate_display_config(dpy, config, dp); 1254 if (cnx) { 1255 if (share_list != EGL_NO_CONTEXT) { 1256 egl_context_t* const c = get_context(share_list); 1257 share_list = c->context; 1258 } 1259 EGLContext context = cnx->egl.eglCreateContext( 1260 dp->disp[ dp->configs[intptr_t(config)].impl ].dpy, 1261 dp->configs[intptr_t(config)].config, 1262 share_list, attrib_list); 1263 if (context != EGL_NO_CONTEXT) { 1264 // figure out if it's a GLESv1 or GLESv2 1265 int version = 0; 1266 if (attrib_list) { 1267 while (*attrib_list != EGL_NONE) { 1268 GLint attr = *attrib_list++; 1269 GLint value = *attrib_list++; 1270 if (attr == EGL_CONTEXT_CLIENT_VERSION) { 1271 if (value == 1) { 1272 version = GLESv1_INDEX; 1273 } else if (value == 2) { 1274 version = GLESv2_INDEX; 1275 } 1276 } 1277 }; 1278 } 1279 egl_context_t* c = new egl_context_t(dpy, context, config, 1280 dp->configs[intptr_t(config)].impl, cnx, version); 1281 return c; 1282 } 1283 } 1284 return EGL_NO_CONTEXT; 1285} 1286 1287EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) 1288{ 1289 clearError(); 1290 1291 ContextRef _c(ctx); 1292 if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE); 1293 1294 if (!validate_display_context(dpy, ctx)) 1295 return EGL_FALSE; 1296 egl_display_t const * const dp = get_display(dpy); 1297 egl_context_t * const c = get_context(ctx); 1298 EGLBoolean result = c->cnx->egl.eglDestroyContext( 1299 dp->disp[c->impl].dpy, c->context); 1300 if (result == EGL_TRUE) { 1301 _c.terminate(); 1302 } 1303 return result; 1304} 1305 1306static void loseCurrent(egl_context_t * cur_c) 1307{ 1308 if (cur_c) { 1309 egl_surface_t * cur_r = get_surface(cur_c->read); 1310 egl_surface_t * cur_d = get_surface(cur_c->draw); 1311 1312 // by construction, these are either 0 or valid (possibly terminated) 1313 // it should be impossible for these to be invalid 1314 ContextRef _cur_c(cur_c); 1315 SurfaceRef _cur_r(cur_r); 1316 SurfaceRef _cur_d(cur_d); 1317 1318 cur_c->read = NULL; 1319 cur_c->draw = NULL; 1320 1321 _cur_c.release(); 1322 _cur_r.release(); 1323 _cur_d.release(); 1324 } 1325} 1326 1327EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, 1328 EGLSurface read, EGLContext ctx) 1329{ 1330 clearError(); 1331 1332 // get a reference to the object passed in 1333 ContextRef _c(ctx); 1334 SurfaceRef _d(draw); 1335 SurfaceRef _r(read); 1336 1337 // validate the display and the context (if not EGL_NO_CONTEXT) 1338 egl_display_t const * const dp = get_display(dpy); 1339 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1340 if ((ctx != EGL_NO_CONTEXT) && (!validate_display_context(dpy, ctx))) { 1341 // EGL_NO_CONTEXT is valid 1342 return EGL_FALSE; 1343 } 1344 1345 // these are the underlying implementation's object 1346 EGLContext impl_ctx = EGL_NO_CONTEXT; 1347 EGLSurface impl_draw = EGL_NO_SURFACE; 1348 EGLSurface impl_read = EGL_NO_SURFACE; 1349 1350 // these are our objects structs passed in 1351 egl_context_t * c = NULL; 1352 egl_surface_t const * d = NULL; 1353 egl_surface_t const * r = NULL; 1354 1355 // these are the current objects structs 1356 egl_context_t * cur_c = get_context(getContext()); 1357 1358 if (ctx != EGL_NO_CONTEXT) { 1359 c = get_context(ctx); 1360 impl_ctx = c->context; 1361 } else { 1362 // no context given, use the implementation of the current context 1363 if (cur_c == NULL) { 1364 // no current context 1365 if (draw != EGL_NO_SURFACE || read != EGL_NO_SURFACE) { 1366 // calling eglMakeCurrent( ..., !=0, !=0, EGL_NO_CONTEXT); 1367 return setError(EGL_BAD_MATCH, EGL_FALSE); 1368 } 1369 // not an error, there is just no current context. 1370 return EGL_TRUE; 1371 } 1372 } 1373 1374 // retrieve the underlying implementation's draw EGLSurface 1375 if (draw != EGL_NO_SURFACE) { 1376 d = get_surface(draw); 1377 // make sure the EGLContext and EGLSurface passed in are for 1378 // the same driver 1379 if (c && d->impl != c->impl) 1380 return setError(EGL_BAD_MATCH, EGL_FALSE); 1381 impl_draw = d->surface; 1382 } 1383 1384 // retrieve the underlying implementation's read EGLSurface 1385 if (read != EGL_NO_SURFACE) { 1386 r = get_surface(read); 1387 // make sure the EGLContext and EGLSurface passed in are for 1388 // the same driver 1389 if (c && r->impl != c->impl) 1390 return setError(EGL_BAD_MATCH, EGL_FALSE); 1391 impl_read = r->surface; 1392 } 1393 1394 EGLBoolean result; 1395 1396 if (c) { 1397 result = c->cnx->egl.eglMakeCurrent( 1398 dp->disp[c->impl].dpy, impl_draw, impl_read, impl_ctx); 1399 } else { 1400 result = cur_c->cnx->egl.eglMakeCurrent( 1401 dp->disp[cur_c->impl].dpy, impl_draw, impl_read, impl_ctx); 1402 } 1403 1404 if (result == EGL_TRUE) { 1405 1406 loseCurrent(cur_c); 1407 1408 if (ctx != EGL_NO_CONTEXT) { 1409 if (!c->dbg && gEGLDebugLevel > 0) 1410 c->dbg = CreateDbgContext(c->version, c->cnx->hooks[c->version]); 1411 setGLHooksThreadSpecific(c->cnx->hooks[c->version]); 1412 setContext(ctx); 1413 _c.acquire(); 1414 _r.acquire(); 1415 _d.acquire(); 1416 c->read = read; 1417 c->draw = draw; 1418 } else { 1419 setGLHooksThreadSpecific(&gHooksNoContext); 1420 setContext(EGL_NO_CONTEXT); 1421 } 1422 } 1423 return result; 1424} 1425 1426 1427EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, 1428 EGLint attribute, EGLint *value) 1429{ 1430 clearError(); 1431 1432 ContextRef _c(ctx); 1433 if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE); 1434 1435 if (!validate_display_context(dpy, ctx)) 1436 return EGL_FALSE; 1437 1438 egl_display_t const * const dp = get_display(dpy); 1439 egl_context_t * const c = get_context(ctx); 1440 1441 EGLBoolean result(EGL_TRUE); 1442 if (attribute == EGL_CONFIG_ID) { 1443 *value = dp->configs[intptr_t(c->config)].configId; 1444 } else { 1445 // We need to remap EGL_CONFIG_IDs 1446 result = c->cnx->egl.eglQueryContext( 1447 dp->disp[c->impl].dpy, c->context, attribute, value); 1448 } 1449 1450 return result; 1451} 1452 1453EGLContext eglGetCurrentContext(void) 1454{ 1455 // could be called before eglInitialize(), but we wouldn't have a context 1456 // then, and this function would correctly return EGL_NO_CONTEXT. 1457 1458 clearError(); 1459 1460 EGLContext ctx = getContext(); 1461 return ctx; 1462} 1463 1464EGLSurface eglGetCurrentSurface(EGLint readdraw) 1465{ 1466 // could be called before eglInitialize(), but we wouldn't have a context 1467 // then, and this function would correctly return EGL_NO_SURFACE. 1468 1469 clearError(); 1470 1471 EGLContext ctx = getContext(); 1472 if (ctx) { 1473 egl_context_t const * const c = get_context(ctx); 1474 if (!c) return setError(EGL_BAD_CONTEXT, EGL_NO_SURFACE); 1475 switch (readdraw) { 1476 case EGL_READ: return c->read; 1477 case EGL_DRAW: return c->draw; 1478 default: return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); 1479 } 1480 } 1481 return EGL_NO_SURFACE; 1482} 1483 1484EGLDisplay eglGetCurrentDisplay(void) 1485{ 1486 // could be called before eglInitialize(), but we wouldn't have a context 1487 // then, and this function would correctly return EGL_NO_DISPLAY. 1488 1489 clearError(); 1490 1491 EGLContext ctx = getContext(); 1492 if (ctx) { 1493 egl_context_t const * const c = get_context(ctx); 1494 if (!c) return setError(EGL_BAD_CONTEXT, EGL_NO_SURFACE); 1495 return c->dpy; 1496 } 1497 return EGL_NO_DISPLAY; 1498} 1499 1500EGLBoolean eglWaitGL(void) 1501{ 1502 // could be called before eglInitialize(), but we wouldn't have a context 1503 // then, and this function would return GL_TRUE, which isn't wrong. 1504 1505 clearError(); 1506 1507 EGLBoolean res = EGL_TRUE; 1508 EGLContext ctx = getContext(); 1509 if (ctx) { 1510 egl_context_t const * const c = get_context(ctx); 1511 if (!c) return setError(EGL_BAD_CONTEXT, EGL_FALSE); 1512 if (uint32_t(c->impl)>=2) 1513 return setError(EGL_BAD_CONTEXT, EGL_FALSE); 1514 egl_connection_t* const cnx = &gEGLImpl[c->impl]; 1515 if (!cnx->dso) 1516 return setError(EGL_BAD_CONTEXT, EGL_FALSE); 1517 res = cnx->egl.eglWaitGL(); 1518 } 1519 return res; 1520} 1521 1522EGLBoolean eglWaitNative(EGLint engine) 1523{ 1524 // could be called before eglInitialize(), but we wouldn't have a context 1525 // then, and this function would return GL_TRUE, which isn't wrong. 1526 1527 clearError(); 1528 1529 EGLBoolean res = EGL_TRUE; 1530 EGLContext ctx = getContext(); 1531 if (ctx) { 1532 egl_context_t const * const c = get_context(ctx); 1533 if (!c) return setError(EGL_BAD_CONTEXT, EGL_FALSE); 1534 if (uint32_t(c->impl)>=2) 1535 return setError(EGL_BAD_CONTEXT, EGL_FALSE); 1536 egl_connection_t* const cnx = &gEGLImpl[c->impl]; 1537 if (!cnx->dso) 1538 return setError(EGL_BAD_CONTEXT, EGL_FALSE); 1539 res = cnx->egl.eglWaitNative(engine); 1540 } 1541 return res; 1542} 1543 1544EGLint eglGetError(void) 1545{ 1546 EGLint result = EGL_SUCCESS; 1547 EGLint err; 1548 for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) { 1549 err = EGL_SUCCESS; 1550 egl_connection_t* const cnx = &gEGLImpl[i]; 1551 if (cnx->dso) 1552 err = cnx->egl.eglGetError(); 1553 if (err!=EGL_SUCCESS && result==EGL_SUCCESS) 1554 result = err; 1555 } 1556 err = getError(); 1557 if (result == EGL_SUCCESS) 1558 result = err; 1559 return result; 1560} 1561 1562// Note: Similar implementations of these functions also exist in 1563// gl2.cpp and gl.cpp, and are used by applications that call the 1564// exported entry points directly. 1565typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETTEXTURE2DOESPROC) (GLenum target, GLeglImageOES image); 1566typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC) (GLenum target, GLeglImageOES image); 1567 1568static PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES_impl = NULL; 1569static PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC glEGLImageTargetRenderbufferStorageOES_impl = NULL; 1570 1571static void glEGLImageTargetTexture2DOES_wrapper(GLenum target, GLeglImageOES image) 1572{ 1573 GLeglImageOES implImage = 1574 (GLeglImageOES)egl_get_image_for_current_context((EGLImageKHR)image); 1575 glEGLImageTargetTexture2DOES_impl(target, implImage); 1576} 1577 1578static void glEGLImageTargetRenderbufferStorageOES_wrapper(GLenum target, GLeglImageOES image) 1579{ 1580 GLeglImageOES implImage = 1581 (GLeglImageOES)egl_get_image_for_current_context((EGLImageKHR)image); 1582 glEGLImageTargetRenderbufferStorageOES_impl(target, implImage); 1583} 1584 1585__eglMustCastToProperFunctionPointerType eglGetProcAddress(const char *procname) 1586{ 1587 // eglGetProcAddress() could be the very first function called 1588 // in which case we must make sure we've initialized ourselves, this 1589 // happens the first time egl_get_display() is called. 1590 1591 clearError(); 1592 1593 if (egl_init_drivers() == EGL_FALSE) { 1594 setError(EGL_BAD_PARAMETER, NULL); 1595 return NULL; 1596 } 1597 1598 __eglMustCastToProperFunctionPointerType addr; 1599 addr = findProcAddress(procname, gExtentionMap, NELEM(gExtentionMap)); 1600 if (addr) return addr; 1601 1602 // this protects accesses to gGLExtentionMap and gGLExtentionSlot 1603 pthread_mutex_lock(&gInitDriverMutex); 1604 1605 /* 1606 * Since eglGetProcAddress() is not associated to anything, it needs 1607 * to return a function pointer that "works" regardless of what 1608 * the current context is. 1609 * 1610 * For this reason, we return a "forwarder", a small stub that takes 1611 * care of calling the function associated with the context 1612 * currently bound. 1613 * 1614 * We first look for extensions we've already resolved, if we're seeing 1615 * this extension for the first time, we go through all our 1616 * implementations and call eglGetProcAddress() and record the 1617 * result in the appropriate implementation hooks and return the 1618 * address of the forwarder corresponding to that hook set. 1619 * 1620 */ 1621 1622 const String8 name(procname); 1623 addr = gGLExtentionMap.valueFor(name); 1624 const int slot = gGLExtentionSlot; 1625 1626 LOGE_IF(slot >= MAX_NUMBER_OF_GL_EXTENSIONS, 1627 "no more slots for eglGetProcAddress(\"%s\")", 1628 procname); 1629 1630 if (!addr && (slot < MAX_NUMBER_OF_GL_EXTENSIONS)) { 1631 bool found = false; 1632 for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) { 1633 egl_connection_t* const cnx = &gEGLImpl[i]; 1634 if (cnx->dso && cnx->egl.eglGetProcAddress) { 1635 found = true; 1636 // Extensions are independent of the bound context 1637 cnx->hooks[GLESv1_INDEX]->ext.extensions[slot] = 1638 cnx->hooks[GLESv2_INDEX]->ext.extensions[slot] = 1639#if EGL_TRACE 1640 gHooksDebug.ext.extensions[slot] = gHooksTrace.ext.extensions[slot] = 1641#endif 1642 cnx->egl.eglGetProcAddress(procname); 1643 } 1644 } 1645 if (found) { 1646 addr = gExtensionForwarders[slot]; 1647 1648 if (!strcmp(procname, "glEGLImageTargetTexture2DOES")) { 1649 glEGLImageTargetTexture2DOES_impl = (PFNGLEGLIMAGETARGETTEXTURE2DOESPROC)addr; 1650 addr = (__eglMustCastToProperFunctionPointerType)glEGLImageTargetTexture2DOES_wrapper; 1651 } 1652 if (!strcmp(procname, "glEGLImageTargetRenderbufferStorageOES")) { 1653 glEGLImageTargetRenderbufferStorageOES_impl = (PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC)addr; 1654 addr = (__eglMustCastToProperFunctionPointerType)glEGLImageTargetRenderbufferStorageOES_wrapper; 1655 } 1656 1657 gGLExtentionMap.add(name, addr); 1658 gGLExtentionSlot++; 1659 } 1660 } 1661 1662 pthread_mutex_unlock(&gInitDriverMutex); 1663 return addr; 1664} 1665 1666EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) 1667{ 1668 EGLBoolean Debug_eglSwapBuffers(EGLDisplay dpy, EGLSurface draw); 1669 if (gEGLDebugLevel > 0) 1670 Debug_eglSwapBuffers(dpy, draw); 1671 1672 clearError(); 1673 1674 SurfaceRef _s(draw); 1675 if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); 1676 1677 if (!validate_display_surface(dpy, draw)) 1678 return EGL_FALSE; 1679 egl_display_t const * const dp = get_display(dpy); 1680 egl_surface_t const * const s = get_surface(draw); 1681 return s->cnx->egl.eglSwapBuffers(dp->disp[s->impl].dpy, s->surface); 1682} 1683 1684EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, 1685 NativePixmapType target) 1686{ 1687 clearError(); 1688 1689 SurfaceRef _s(surface); 1690 if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); 1691 1692 if (!validate_display_surface(dpy, surface)) 1693 return EGL_FALSE; 1694 egl_display_t const * const dp = get_display(dpy); 1695 egl_surface_t const * const s = get_surface(surface); 1696 return s->cnx->egl.eglCopyBuffers( 1697 dp->disp[s->impl].dpy, s->surface, target); 1698} 1699 1700const char* eglQueryString(EGLDisplay dpy, EGLint name) 1701{ 1702 clearError(); 1703 1704 egl_display_t const * const dp = get_display(dpy); 1705 switch (name) { 1706 case EGL_VENDOR: 1707 return gVendorString; 1708 case EGL_VERSION: 1709 return gVersionString; 1710 case EGL_EXTENSIONS: 1711 return gExtensionString; 1712 case EGL_CLIENT_APIS: 1713 return gClientApiString; 1714 } 1715 return setError(EGL_BAD_PARAMETER, (const char *)0); 1716} 1717 1718 1719// ---------------------------------------------------------------------------- 1720// EGL 1.1 1721// ---------------------------------------------------------------------------- 1722 1723EGLBoolean eglSurfaceAttrib( 1724 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) 1725{ 1726 clearError(); 1727 1728 SurfaceRef _s(surface); 1729 if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); 1730 1731 if (!validate_display_surface(dpy, surface)) 1732 return EGL_FALSE; 1733 egl_display_t const * const dp = get_display(dpy); 1734 egl_surface_t const * const s = get_surface(surface); 1735 if (s->cnx->egl.eglSurfaceAttrib) { 1736 return s->cnx->egl.eglSurfaceAttrib( 1737 dp->disp[s->impl].dpy, s->surface, attribute, value); 1738 } 1739 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1740} 1741 1742EGLBoolean eglBindTexImage( 1743 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1744{ 1745 clearError(); 1746 1747 SurfaceRef _s(surface); 1748 if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); 1749 1750 if (!validate_display_surface(dpy, surface)) 1751 return EGL_FALSE; 1752 egl_display_t const * const dp = get_display(dpy); 1753 egl_surface_t const * const s = get_surface(surface); 1754 if (s->cnx->egl.eglBindTexImage) { 1755 return s->cnx->egl.eglBindTexImage( 1756 dp->disp[s->impl].dpy, s->surface, buffer); 1757 } 1758 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1759} 1760 1761EGLBoolean eglReleaseTexImage( 1762 EGLDisplay dpy, EGLSurface surface, EGLint buffer) 1763{ 1764 clearError(); 1765 1766 SurfaceRef _s(surface); 1767 if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); 1768 1769 if (!validate_display_surface(dpy, surface)) 1770 return EGL_FALSE; 1771 egl_display_t const * const dp = get_display(dpy); 1772 egl_surface_t const * const s = get_surface(surface); 1773 if (s->cnx->egl.eglReleaseTexImage) { 1774 return s->cnx->egl.eglReleaseTexImage( 1775 dp->disp[s->impl].dpy, s->surface, buffer); 1776 } 1777 return setError(EGL_BAD_SURFACE, EGL_FALSE); 1778} 1779 1780EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) 1781{ 1782 clearError(); 1783 1784 egl_display_t * const dp = get_display(dpy); 1785 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1786 1787 EGLBoolean res = EGL_TRUE; 1788 for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) { 1789 egl_connection_t* const cnx = &gEGLImpl[i]; 1790 if (cnx->dso) { 1791 if (cnx->egl.eglSwapInterval) { 1792 if (cnx->egl.eglSwapInterval( 1793 dp->disp[i].dpy, interval) == EGL_FALSE) { 1794 res = EGL_FALSE; 1795 } 1796 } 1797 } 1798 } 1799 return res; 1800} 1801 1802 1803// ---------------------------------------------------------------------------- 1804// EGL 1.2 1805// ---------------------------------------------------------------------------- 1806 1807EGLBoolean eglWaitClient(void) 1808{ 1809 clearError(); 1810 1811 // could be called before eglInitialize(), but we wouldn't have a context 1812 // then, and this function would return GL_TRUE, which isn't wrong. 1813 EGLBoolean res = EGL_TRUE; 1814 EGLContext ctx = getContext(); 1815 if (ctx) { 1816 egl_context_t const * const c = get_context(ctx); 1817 if (!c) return setError(EGL_BAD_CONTEXT, EGL_FALSE); 1818 if (uint32_t(c->impl)>=2) 1819 return setError(EGL_BAD_CONTEXT, EGL_FALSE); 1820 egl_connection_t* const cnx = &gEGLImpl[c->impl]; 1821 if (!cnx->dso) 1822 return setError(EGL_BAD_CONTEXT, EGL_FALSE); 1823 if (cnx->egl.eglWaitClient) { 1824 res = cnx->egl.eglWaitClient(); 1825 } else { 1826 res = cnx->egl.eglWaitGL(); 1827 } 1828 } 1829 return res; 1830} 1831 1832EGLBoolean eglBindAPI(EGLenum api) 1833{ 1834 clearError(); 1835 1836 if (egl_init_drivers() == EGL_FALSE) { 1837 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1838 } 1839 1840 // bind this API on all EGLs 1841 EGLBoolean res = EGL_TRUE; 1842 for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) { 1843 egl_connection_t* const cnx = &gEGLImpl[i]; 1844 if (cnx->dso) { 1845 if (cnx->egl.eglBindAPI) { 1846 if (cnx->egl.eglBindAPI(api) == EGL_FALSE) { 1847 res = EGL_FALSE; 1848 } 1849 } 1850 } 1851 } 1852 return res; 1853} 1854 1855EGLenum eglQueryAPI(void) 1856{ 1857 clearError(); 1858 1859 if (egl_init_drivers() == EGL_FALSE) { 1860 return setError(EGL_BAD_PARAMETER, EGL_FALSE); 1861 } 1862 1863 for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) { 1864 egl_connection_t* const cnx = &gEGLImpl[i]; 1865 if (cnx->dso) { 1866 if (cnx->egl.eglQueryAPI) { 1867 // the first one we find is okay, because they all 1868 // should be the same 1869 return cnx->egl.eglQueryAPI(); 1870 } 1871 } 1872 } 1873 // or, it can only be OpenGL ES 1874 return EGL_OPENGL_ES_API; 1875} 1876 1877EGLBoolean eglReleaseThread(void) 1878{ 1879 clearError(); 1880 1881 // If there is context bound to the thread, release it 1882 loseCurrent(get_context(getContext())); 1883 1884 for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) { 1885 egl_connection_t* const cnx = &gEGLImpl[i]; 1886 if (cnx->dso) { 1887 if (cnx->egl.eglReleaseThread) { 1888 cnx->egl.eglReleaseThread(); 1889 } 1890 } 1891 } 1892 clearTLS(); 1893 return EGL_TRUE; 1894} 1895 1896EGLSurface eglCreatePbufferFromClientBuffer( 1897 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, 1898 EGLConfig config, const EGLint *attrib_list) 1899{ 1900 clearError(); 1901 1902 egl_display_t const* dp = 0; 1903 egl_connection_t* cnx = validate_display_config(dpy, config, dp); 1904 if (!cnx) return EGL_FALSE; 1905 if (cnx->egl.eglCreatePbufferFromClientBuffer) { 1906 return cnx->egl.eglCreatePbufferFromClientBuffer( 1907 dp->disp[ dp->configs[intptr_t(config)].impl ].dpy, 1908 buftype, buffer, 1909 dp->configs[intptr_t(config)].config, attrib_list); 1910 } 1911 return setError(EGL_BAD_CONFIG, EGL_NO_SURFACE); 1912} 1913 1914// ---------------------------------------------------------------------------- 1915// EGL_EGLEXT_VERSION 3 1916// ---------------------------------------------------------------------------- 1917 1918EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, 1919 const EGLint *attrib_list) 1920{ 1921 clearError(); 1922 1923 SurfaceRef _s(surface); 1924 if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); 1925 1926 if (!validate_display_surface(dpy, surface)) 1927 return EGL_FALSE; 1928 1929 egl_display_t const * const dp = get_display(dpy); 1930 egl_surface_t const * const s = get_surface(surface); 1931 1932 if (s->cnx->egl.eglLockSurfaceKHR) { 1933 return s->cnx->egl.eglLockSurfaceKHR( 1934 dp->disp[s->impl].dpy, s->surface, attrib_list); 1935 } 1936 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1937} 1938 1939EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) 1940{ 1941 clearError(); 1942 1943 SurfaceRef _s(surface); 1944 if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); 1945 1946 if (!validate_display_surface(dpy, surface)) 1947 return EGL_FALSE; 1948 1949 egl_display_t const * const dp = get_display(dpy); 1950 egl_surface_t const * const s = get_surface(surface); 1951 1952 if (s->cnx->egl.eglUnlockSurfaceKHR) { 1953 return s->cnx->egl.eglUnlockSurfaceKHR( 1954 dp->disp[s->impl].dpy, s->surface); 1955 } 1956 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 1957} 1958 1959EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, 1960 EGLClientBuffer buffer, const EGLint *attrib_list) 1961{ 1962 clearError(); 1963 1964 if (ctx != EGL_NO_CONTEXT) { 1965 ContextRef _c(ctx); 1966 if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR); 1967 if (!validate_display_context(dpy, ctx)) 1968 return EGL_NO_IMAGE_KHR; 1969 egl_display_t const * const dp = get_display(dpy); 1970 egl_context_t * const c = get_context(ctx); 1971 // since we have an EGLContext, we know which implementation to use 1972 EGLImageKHR image = c->cnx->egl.eglCreateImageKHR( 1973 dp->disp[c->impl].dpy, c->context, target, buffer, attrib_list); 1974 if (image == EGL_NO_IMAGE_KHR) 1975 return image; 1976 1977 egl_image_t* result = new egl_image_t(dpy, ctx); 1978 result->images[c->impl] = image; 1979 return (EGLImageKHR)result; 1980 } else { 1981 // EGL_NO_CONTEXT is a valid parameter 1982 egl_display_t const * const dp = get_display(dpy); 1983 if (dp == 0) { 1984 return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR); 1985 } 1986 1987 /* Since we don't have a way to know which implementation to call, 1988 * we're calling all of them. If at least one of the implementation 1989 * succeeded, this is a success. 1990 */ 1991 1992 EGLint currentError = eglGetError(); 1993 1994 EGLImageKHR implImages[IMPL_NUM_IMPLEMENTATIONS]; 1995 bool success = false; 1996 for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) { 1997 egl_connection_t* const cnx = &gEGLImpl[i]; 1998 implImages[i] = EGL_NO_IMAGE_KHR; 1999 if (cnx->dso) { 2000 if (cnx->egl.eglCreateImageKHR) { 2001 implImages[i] = cnx->egl.eglCreateImageKHR( 2002 dp->disp[i].dpy, ctx, target, buffer, attrib_list); 2003 if (implImages[i] != EGL_NO_IMAGE_KHR) { 2004 success = true; 2005 } 2006 } 2007 } 2008 } 2009 2010 if (!success) { 2011 // failure, if there was an error when we entered this function, 2012 // the error flag must not be updated. 2013 // Otherwise, the error is whatever happened in the implementation 2014 // that faulted. 2015 if (currentError != EGL_SUCCESS) { 2016 setError(currentError, EGL_NO_IMAGE_KHR); 2017 } 2018 return EGL_NO_IMAGE_KHR; 2019 } else { 2020 // In case of success, we need to clear all error flags 2021 // (especially those caused by the implementation that didn't 2022 // succeed). TODO: we could avoid this if we knew this was 2023 // a "full" success (all implementation succeeded). 2024 eglGetError(); 2025 } 2026 2027 egl_image_t* result = new egl_image_t(dpy, ctx); 2028 memcpy(result->images, implImages, sizeof(implImages)); 2029 return (EGLImageKHR)result; 2030 } 2031} 2032 2033EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) 2034{ 2035 clearError(); 2036 2037 egl_display_t const * const dp = get_display(dpy); 2038 if (dp == 0) { 2039 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2040 } 2041 2042 ImageRef _i(img); 2043 if (!_i.get()) return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2044 2045 egl_image_t* image = get_image(img); 2046 bool success = false; 2047 for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) { 2048 egl_connection_t* const cnx = &gEGLImpl[i]; 2049 if (image->images[i] != EGL_NO_IMAGE_KHR) { 2050 if (cnx->dso) { 2051 if (cnx->egl.eglDestroyImageKHR) { 2052 if (cnx->egl.eglDestroyImageKHR( 2053 dp->disp[i].dpy, image->images[i])) { 2054 success = true; 2055 } 2056 } 2057 } 2058 } 2059 } 2060 if (!success) 2061 return EGL_FALSE; 2062 2063 _i.terminate(); 2064 2065 return EGL_TRUE; 2066} 2067 2068// ---------------------------------------------------------------------------- 2069// EGL_EGLEXT_VERSION 5 2070// ---------------------------------------------------------------------------- 2071 2072 2073EGLSyncKHR eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list) 2074{ 2075 clearError(); 2076 2077 EGLContext ctx = eglGetCurrentContext(); 2078 ContextRef _c(ctx); 2079 if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_NO_SYNC_KHR); 2080 if (!validate_display_context(dpy, ctx)) 2081 return EGL_NO_SYNC_KHR; 2082 egl_display_t const * const dp = get_display(dpy); 2083 egl_context_t * const c = get_context(ctx); 2084 EGLSyncKHR result = EGL_NO_SYNC_KHR; 2085 if (c->cnx->egl.eglCreateSyncKHR) { 2086 EGLSyncKHR sync = c->cnx->egl.eglCreateSyncKHR( 2087 dp->disp[c->impl].dpy, type, attrib_list); 2088 if (sync == EGL_NO_SYNC_KHR) 2089 return sync; 2090 result = (egl_sync_t*)new egl_sync_t(dpy, ctx, sync); 2091 } 2092 return (EGLSyncKHR)result; 2093} 2094 2095EGLBoolean eglDestroySyncKHR(EGLDisplay dpy, EGLSyncKHR sync) 2096{ 2097 clearError(); 2098 2099 egl_display_t const * const dp = get_display(dpy); 2100 if (dp == 0) { 2101 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2102 } 2103 2104 SyncRef _s(sync); 2105 if (!_s.get()) return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2106 egl_sync_t* syncObject = get_sync(sync); 2107 2108 EGLContext ctx = syncObject->context; 2109 ContextRef _c(ctx); 2110 if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE); 2111 if (!validate_display_context(dpy, ctx)) 2112 return EGL_FALSE; 2113 2114 egl_context_t * const c = get_context(ctx); 2115 2116 if (c->cnx->egl.eglDestroySyncKHR) { 2117 return c->cnx->egl.eglDestroySyncKHR( 2118 dp->disp[c->impl].dpy, syncObject->sync); 2119 } 2120 2121 return EGL_FALSE; 2122} 2123 2124EGLint eglClientWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout) 2125{ 2126 clearError(); 2127 2128 egl_display_t const * const dp = get_display(dpy); 2129 if (dp == 0) { 2130 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2131 } 2132 2133 SyncRef _s(sync); 2134 if (!_s.get()) return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2135 egl_sync_t* syncObject = get_sync(sync); 2136 2137 EGLContext ctx = syncObject->context; 2138 ContextRef _c(ctx); 2139 if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE); 2140 if (!validate_display_context(dpy, ctx)) 2141 return EGL_FALSE; 2142 2143 egl_context_t * const c = get_context(ctx); 2144 2145 if (c->cnx->egl.eglClientWaitSyncKHR) { 2146 return c->cnx->egl.eglClientWaitSyncKHR( 2147 dp->disp[c->impl].dpy, syncObject->sync, flags, timeout); 2148 } 2149 2150 return EGL_FALSE; 2151} 2152 2153EGLBoolean eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint attribute, EGLint *value) 2154{ 2155 clearError(); 2156 2157 egl_display_t const * const dp = get_display(dpy); 2158 if (dp == 0) { 2159 return setError(EGL_BAD_DISPLAY, EGL_FALSE); 2160 } 2161 2162 SyncRef _s(sync); 2163 if (!_s.get()) return setError(EGL_BAD_PARAMETER, EGL_FALSE); 2164 egl_sync_t* syncObject = get_sync(sync); 2165 2166 EGLContext ctx = syncObject->context; 2167 ContextRef _c(ctx); 2168 if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE); 2169 if (!validate_display_context(dpy, ctx)) 2170 return EGL_FALSE; 2171 2172 egl_context_t * const c = get_context(ctx); 2173 2174 if (c->cnx->egl.eglGetSyncAttribKHR) { 2175 return c->cnx->egl.eglGetSyncAttribKHR( 2176 dp->disp[c->impl].dpy, syncObject->sync, attribute, value); 2177 } 2178 2179 return EGL_FALSE; 2180} 2181 2182// ---------------------------------------------------------------------------- 2183// ANDROID extensions 2184// ---------------------------------------------------------------------------- 2185 2186EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw, 2187 EGLint left, EGLint top, EGLint width, EGLint height) 2188{ 2189 clearError(); 2190 2191 SurfaceRef _s(draw); 2192 if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); 2193 2194 if (!validate_display_surface(dpy, draw)) 2195 return EGL_FALSE; 2196 egl_display_t const * const dp = get_display(dpy); 2197 egl_surface_t const * const s = get_surface(draw); 2198 if (s->cnx->egl.eglSetSwapRectangleANDROID) { 2199 return s->cnx->egl.eglSetSwapRectangleANDROID( 2200 dp->disp[s->impl].dpy, s->surface, left, top, width, height); 2201 } 2202 return setError(EGL_BAD_DISPLAY, NULL); 2203} 2204