2 ** Copyright 2007, The Android Open Source Project
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
8 ** http://www.apache.org/licenses/LICENSE-2.0
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.
17 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
24 #include <hardware/gralloc.h>
25 #include <system/window.h>
28 #include <EGL/eglext.h>
30 #include <cutils/log.h>
31 #include <cutils/atomic.h>
32 #include <cutils/compiler.h>
33 #include <cutils/properties.h>
34 #include <cutils/memory.h>
36 #include <utils/KeyedVector.h>
37 #include <utils/SortedVector.h>
38 #include <utils/String8.h>
39 #include <utils/Trace.h>
41 #include "../egl_impl.h"
42 #include "../glestrace.h"
45 #include "egl_display.h"
46 #include "egl_object.h"
50 using namespace android;
52 // ----------------------------------------------------------------------------
56 struct extention_map_t {
58 __eglMustCastToProperFunctionPointerType address;
62 * This is the list of EGL extensions exposed to applications.
64 * Some of them (gBuiltinExtensionString) are implemented entirely in this EGL
65 * wrapper and are always available.
67 * The rest (gExtensionString) depend on support in the EGL driver, and are
68 * only available if the driver supports them. However, some of these must be
69 * supported because they are used by the Android system itself; these are
70 * listd as mandatory below and are required by the CDD. The system *assumes*
71 * the mandatory extensions are present and may not function properly if some
74 * NOTE: Both strings MUST have a single space as the last character.
76 extern char const * const gBuiltinExtensionString =
77 "EGL_KHR_get_all_proc_addresses "
78 "EGL_ANDROID_presentation_time "
80 extern char const * const gExtensionString =
81 "EGL_KHR_image " // mandatory
82 "EGL_KHR_image_base " // mandatory
83 "EGL_KHR_image_pixmap "
84 "EGL_KHR_lock_surface "
85 "EGL_KHR_gl_colorspace "
86 "EGL_KHR_gl_texture_2D_image "
87 "EGL_KHR_gl_texture_cubemap_image "
88 "EGL_KHR_gl_renderbuffer_image "
89 "EGL_KHR_reusable_sync "
91 "EGL_KHR_create_context "
92 "EGL_EXT_create_context_robustness "
94 "EGL_ANDROID_image_native_buffer " // mandatory
95 "EGL_KHR_wait_sync " // strongly recommended
98 // extensions not exposed to applications but used by the ANDROID system
99 // "EGL_ANDROID_blob_cache " // strongly recommended
100 // "EGL_IMG_hibernate_process " // optional
101 // "EGL_ANDROID_native_fence_sync " // strongly recommended
102 // "EGL_ANDROID_framebuffer_target " // mandatory for HWC 1.1
103 // "EGL_ANDROID_recordable " // mandatory
107 * EGL Extensions entry-points exposed to 3rd party applications
108 * (keep in sync with gExtensionString above)
111 static const extention_map_t sExtensionMap[] = {
112 // EGL_KHR_lock_surface
113 { "eglLockSurfaceKHR",
114 (__eglMustCastToProperFunctionPointerType)&eglLockSurfaceKHR },
115 { "eglUnlockSurfaceKHR",
116 (__eglMustCastToProperFunctionPointerType)&eglUnlockSurfaceKHR },
118 // EGL_KHR_image, EGL_KHR_image_base
119 { "eglCreateImageKHR",
120 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR },
121 { "eglDestroyImageKHR",
122 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR },
124 // EGL_KHR_reusable_sync, EGL_KHR_fence_sync
125 { "eglCreateSyncKHR",
126 (__eglMustCastToProperFunctionPointerType)&eglCreateSyncKHR },
127 { "eglDestroySyncKHR",
128 (__eglMustCastToProperFunctionPointerType)&eglDestroySyncKHR },
129 { "eglClientWaitSyncKHR",
130 (__eglMustCastToProperFunctionPointerType)&eglClientWaitSyncKHR },
131 { "eglSignalSyncKHR",
132 (__eglMustCastToProperFunctionPointerType)&eglSignalSyncKHR },
133 { "eglGetSyncAttribKHR",
134 (__eglMustCastToProperFunctionPointerType)&eglGetSyncAttribKHR },
136 // EGL_NV_system_time
137 { "eglGetSystemTimeFrequencyNV",
138 (__eglMustCastToProperFunctionPointerType)&eglGetSystemTimeFrequencyNV },
139 { "eglGetSystemTimeNV",
140 (__eglMustCastToProperFunctionPointerType)&eglGetSystemTimeNV },
144 (__eglMustCastToProperFunctionPointerType)&eglWaitSyncKHR },
146 // EGL_ANDROID_presentation_time
147 { "eglPresentationTimeANDROID",
148 (__eglMustCastToProperFunctionPointerType)&eglPresentationTimeANDROID },
152 * These extensions entry-points should not be exposed to applications.
153 * They're used internally by the Android EGL layer.
155 #define FILTER_EXTENSIONS(procname) \
156 (!strcmp((procname), "eglSetBlobCacheFuncsANDROID") || \
157 !strcmp((procname), "eglHibernateProcessIMG") || \
158 !strcmp((procname), "eglAwakenProcessIMG") || \
159 !strcmp((procname), "eglDupNativeFenceFDANDROID"))
163 // accesses protected by sExtensionMapMutex
164 static DefaultKeyedVector<String8, __eglMustCastToProperFunctionPointerType> sGLExtentionMap;
165 static int sGLExtentionSlot = 0;
166 static pthread_mutex_t sExtensionMapMutex = PTHREAD_MUTEX_INITIALIZER;
168 static void(*findProcAddress(const char* name,
169 const extention_map_t* map, size_t n))() {
170 for (uint32_t i=0 ; i<n ; i++) {
171 if (!strcmp(name, map[i].name)) {
172 return map[i].address;
178 // ----------------------------------------------------------------------------
180 extern void setGLHooksThreadSpecific(gl_hooks_t const *value);
181 extern EGLBoolean egl_init_drivers();
182 extern const __eglMustCastToProperFunctionPointerType gExtensionForwarders[MAX_NUMBER_OF_GL_EXTENSIONS];
183 extern int getEGLDebugLevel();
184 extern void setEGLDebugLevel(int level);
185 extern gl_hooks_t gHooksTrace;
187 } // namespace android;
190 // ----------------------------------------------------------------------------
192 static inline void clearError() { egl_tls_t::clearError(); }
193 static inline EGLContext getContext() { return egl_tls_t::getContext(); }
195 // ----------------------------------------------------------------------------
197 EGLDisplay eglGetDisplay(EGLNativeDisplayType display)
201 uint32_t index = uint32_t(display);
202 if (index >= NUM_DISPLAYS) {
203 return setError(EGL_BAD_PARAMETER, EGL_NO_DISPLAY);
206 if (egl_init_drivers() == EGL_FALSE) {
207 return setError(EGL_BAD_PARAMETER, EGL_NO_DISPLAY);
210 EGLDisplay dpy = egl_display_t::getFromNativeDisplay(display);
214 // ----------------------------------------------------------------------------
216 // ----------------------------------------------------------------------------
218 EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
222 egl_display_ptr dp = get_display(dpy);
223 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
225 EGLBoolean res = dp->initialize(major, minor);
230 EGLBoolean eglTerminate(EGLDisplay dpy)
232 // NOTE: don't unload the drivers b/c some APIs can be called
233 // after eglTerminate() has been called. eglTerminate() only
234 // terminates an EGLDisplay, not a EGL itself.
238 egl_display_ptr dp = get_display(dpy);
239 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
241 EGLBoolean res = dp->terminate();
246 // ----------------------------------------------------------------------------
248 // ----------------------------------------------------------------------------
250 EGLBoolean eglGetConfigs( EGLDisplay dpy,
252 EGLint config_size, EGLint *num_config)
256 const egl_display_ptr dp = validate_display(dpy);
257 if (!dp) return EGL_FALSE;
260 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
263 EGLBoolean res = EGL_FALSE;
266 egl_connection_t* const cnx = &gEGLImpl;
268 res = cnx->egl.eglGetConfigs(
269 dp->disp.dpy, configs, config_size, num_config);
275 EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list,
276 EGLConfig *configs, EGLint config_size,
281 const egl_display_ptr dp = validate_display(dpy);
282 if (!dp) return EGL_FALSE;
285 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
288 EGLBoolean res = EGL_FALSE;
291 egl_connection_t* const cnx = &gEGLImpl;
294 char value[PROPERTY_VALUE_MAX];
295 property_get("debug.egl.force_msaa", value, "false");
297 if (!strcmp(value, "true")) {
298 size_t attribCount = 0;
299 EGLint attrib = attrib_list[0];
301 // Only enable MSAA if the context is OpenGL ES 2.0 and
302 // if no caveat is requested
303 const EGLint *attribRendererable = NULL;
304 const EGLint *attribCaveat = NULL;
306 // Count the number of attributes and look for
307 // EGL_RENDERABLE_TYPE and EGL_CONFIG_CAVEAT
308 while (attrib != EGL_NONE) {
309 attrib = attrib_list[attribCount];
311 case EGL_RENDERABLE_TYPE:
312 attribRendererable = &attrib_list[attribCount];
314 case EGL_CONFIG_CAVEAT:
315 attribCaveat = &attrib_list[attribCount];
321 if (attribRendererable && attribRendererable[1] == EGL_OPENGL_ES2_BIT &&
322 (!attribCaveat || attribCaveat[1] != EGL_NONE)) {
324 // Insert 2 extra attributes to force-enable MSAA 4x
325 EGLint aaAttribs[attribCount + 4];
326 aaAttribs[0] = EGL_SAMPLE_BUFFERS;
328 aaAttribs[2] = EGL_SAMPLES;
331 memcpy(&aaAttribs[4], attrib_list, attribCount * sizeof(EGLint));
334 EGLBoolean resAA = cnx->egl.eglChooseConfig(
335 dp->disp.dpy, aaAttribs, configs, config_size, &numConfigAA);
337 if (resAA == EGL_TRUE && numConfigAA > 0) {
338 ALOGD("Enabling MSAA 4x");
339 *num_config = numConfigAA;
346 res = cnx->egl.eglChooseConfig(
347 dp->disp.dpy, attrib_list, configs, config_size, num_config);
352 EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,
353 EGLint attribute, EGLint *value)
357 egl_connection_t* cnx = NULL;
358 const egl_display_ptr dp = validate_display_connection(dpy, cnx);
359 if (!dp) return EGL_FALSE;
361 return cnx->egl.eglGetConfigAttrib(
362 dp->disp.dpy, config, attribute, value);
365 // ----------------------------------------------------------------------------
367 // ----------------------------------------------------------------------------
369 // The EGL_KHR_gl_colorspace spec hasn't been published yet, so these haven't
370 // been added to the Khronos egl.h.
371 #define EGL_GL_COLORSPACE_KHR EGL_VG_COLORSPACE
372 #define EGL_GL_COLORSPACE_SRGB_KHR EGL_VG_COLORSPACE_sRGB
373 #define EGL_GL_COLORSPACE_LINEAR_KHR EGL_VG_COLORSPACE_LINEAR
375 // Turn linear formats into corresponding sRGB formats when colorspace is
376 // EGL_GL_COLORSPACE_SRGB_KHR, or turn sRGB formats into corresponding linear
377 // formats when colorspace is EGL_GL_COLORSPACE_LINEAR_KHR. In any cases where
378 // the modification isn't possible, the original format is returned.
379 static int modifyFormatColorspace(int fmt, EGLint colorspace) {
380 if (colorspace == EGL_GL_COLORSPACE_LINEAR_KHR) {
382 case HAL_PIXEL_FORMAT_sRGB_A_8888: return HAL_PIXEL_FORMAT_RGBA_8888;
383 case HAL_PIXEL_FORMAT_sRGB_X_8888: return HAL_PIXEL_FORMAT_RGBX_8888;
385 } else if (colorspace == EGL_GL_COLORSPACE_SRGB_KHR) {
387 case HAL_PIXEL_FORMAT_RGBA_8888: return HAL_PIXEL_FORMAT_sRGB_A_8888;
388 case HAL_PIXEL_FORMAT_RGBX_8888: return HAL_PIXEL_FORMAT_sRGB_X_8888;
394 EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config,
395 NativeWindowType window,
396 const EGLint *attrib_list)
400 egl_connection_t* cnx = NULL;
401 egl_display_ptr dp = validate_display_connection(dpy, cnx);
403 EGLDisplay iDpy = dp->disp.dpy;
405 if (native_window_api_connect(window, NATIVE_WINDOW_API_EGL) != OK) {
406 ALOGE("EGLNativeWindowType %p already connected to another API",
408 return setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
411 // Set the native window's buffers format to match what this config requests.
412 // Whether to use sRGB gamma is not part of the EGLconfig, but is part
413 // of our native format. So if sRGB gamma is requested, we have to
414 // modify the EGLconfig's format before setting the native window's
416 #if WORKAROUND_BUG_10194508
417 #warning "WORKAROUND_10194508 enabled"
419 if (!cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_NATIVE_VISUAL_ID,
421 ALOGE("eglGetConfigAttrib(EGL_NATIVE_VISUAL_ID) failed: %#x",
426 for (const EGLint* attr = attrib_list; *attr != EGL_NONE;
428 if (*attr == EGL_GL_COLORSPACE_KHR &&
429 dp->haveExtension("EGL_KHR_gl_colorspace")) {
430 format = modifyFormatColorspace(format, *(attr+1));
435 // by default, just pick RGBA_8888
436 EGLint format = HAL_PIXEL_FORMAT_RGBA_8888;
439 cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_ALPHA_SIZE, &a);
441 // alpha-channel requested, there's really only one suitable format
442 format = HAL_PIXEL_FORMAT_RGBA_8888;
446 cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_RED_SIZE, &r);
447 cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_GREEN_SIZE, &g);
448 cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_BLUE_SIZE, &b);
449 EGLint colorDepth = r + g + b;
450 if (colorDepth <= 16) {
451 format = HAL_PIXEL_FORMAT_RGB_565;
453 format = HAL_PIXEL_FORMAT_RGBX_8888;
457 // now select a corresponding sRGB format if needed
458 if (attrib_list && dp->haveExtension("EGL_KHR_gl_colorspace")) {
459 for (const EGLint* attr = attrib_list; *attr != EGL_NONE; attr += 2) {
460 if (*attr == EGL_GL_COLORSPACE_KHR) {
461 format = modifyFormatColorspace(format, attr[1]);
467 int err = native_window_set_buffers_format(window, format);
469 ALOGE("error setting native window pixel format: %s (%d)",
470 strerror(-err), err);
471 native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL);
472 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
476 // the EGL spec requires that a new EGLSurface default to swap interval
477 // 1, so explicitly set that on the window here.
478 ANativeWindow* anw = reinterpret_cast<ANativeWindow*>(window);
479 anw->setSwapInterval(anw, 1);
481 EGLSurface surface = cnx->egl.eglCreateWindowSurface(
482 iDpy, config, window, attrib_list);
483 if (surface != EGL_NO_SURFACE) {
484 egl_surface_t* s = new egl_surface_t(dp.get(), config, window,
489 // EGLSurface creation failed
490 native_window_set_buffers_format(window, 0);
491 native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL);
493 return EGL_NO_SURFACE;
496 EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config,
497 NativePixmapType pixmap,
498 const EGLint *attrib_list)
502 egl_connection_t* cnx = NULL;
503 egl_display_ptr dp = validate_display_connection(dpy, cnx);
505 EGLSurface surface = cnx->egl.eglCreatePixmapSurface(
506 dp->disp.dpy, config, pixmap, attrib_list);
507 if (surface != EGL_NO_SURFACE) {
508 egl_surface_t* s = new egl_surface_t(dp.get(), config, NULL,
513 return EGL_NO_SURFACE;
516 EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config,
517 const EGLint *attrib_list)
521 egl_connection_t* cnx = NULL;
522 egl_display_ptr dp = validate_display_connection(dpy, cnx);
524 EGLSurface surface = cnx->egl.eglCreatePbufferSurface(
525 dp->disp.dpy, config, attrib_list);
526 if (surface != EGL_NO_SURFACE) {
527 egl_surface_t* s = new egl_surface_t(dp.get(), config, NULL,
532 return EGL_NO_SURFACE;
535 EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface surface)
539 const egl_display_ptr dp = validate_display(dpy);
540 if (!dp) return EGL_FALSE;
542 SurfaceRef _s(dp.get(), surface);
544 return setError(EGL_BAD_SURFACE, EGL_FALSE);
546 egl_surface_t * const s = get_surface(surface);
547 EGLBoolean result = s->cnx->egl.eglDestroySurface(dp->disp.dpy, s->surface);
548 if (result == EGL_TRUE) {
554 EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface surface,
555 EGLint attribute, EGLint *value)
559 const egl_display_ptr dp = validate_display(dpy);
560 if (!dp) return EGL_FALSE;
562 SurfaceRef _s(dp.get(), surface);
564 return setError(EGL_BAD_SURFACE, EGL_FALSE);
566 egl_surface_t const * const s = get_surface(surface);
567 return s->cnx->egl.eglQuerySurface(
568 dp->disp.dpy, s->surface, attribute, value);
571 void EGLAPI eglBeginFrame(EGLDisplay dpy, EGLSurface surface) {
575 const egl_display_ptr dp = validate_display(dpy);
580 SurfaceRef _s(dp.get(), surface);
582 setError(EGL_BAD_SURFACE, EGL_FALSE);
587 // ----------------------------------------------------------------------------
589 // ----------------------------------------------------------------------------
591 EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config,
592 EGLContext share_list, const EGLint *attrib_list)
596 egl_connection_t* cnx = NULL;
597 const egl_display_ptr dp = validate_display_connection(dpy, cnx);
599 if (share_list != EGL_NO_CONTEXT) {
600 if (!ContextRef(dp.get(), share_list).get()) {
601 return setError(EGL_BAD_CONTEXT, EGL_NO_CONTEXT);
603 egl_context_t* const c = get_context(share_list);
604 share_list = c->context;
606 EGLContext context = cnx->egl.eglCreateContext(
607 dp->disp.dpy, config, share_list, attrib_list);
608 if (context != EGL_NO_CONTEXT) {
609 // figure out if it's a GLESv1 or GLESv2
612 while (*attrib_list != EGL_NONE) {
613 GLint attr = *attrib_list++;
614 GLint value = *attrib_list++;
615 if (attr == EGL_CONTEXT_CLIENT_VERSION) {
617 version = egl_connection_t::GLESv1_INDEX;
618 } else if (value == 2 || value == 3) {
619 version = egl_connection_t::GLESv2_INDEX;
624 egl_context_t* c = new egl_context_t(dpy, context, config, cnx,
627 if (getEGLDebugLevel() > 0)
628 GLTrace_eglCreateContext(version, c);
633 return EGL_NO_CONTEXT;
636 EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
640 const egl_display_ptr dp = validate_display(dpy);
644 ContextRef _c(dp.get(), ctx);
646 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
648 egl_context_t * const c = get_context(ctx);
649 EGLBoolean result = c->cnx->egl.eglDestroyContext(dp->disp.dpy, c->context);
650 if (result == EGL_TRUE) {
656 EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw,
657 EGLSurface read, EGLContext ctx)
661 egl_display_ptr dp = validate_display(dpy);
662 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
664 // If ctx is not EGL_NO_CONTEXT, read is not EGL_NO_SURFACE, or draw is not
665 // EGL_NO_SURFACE, then an EGL_NOT_INITIALIZED error is generated if dpy is
666 // a valid but uninitialized display.
667 if ( (ctx != EGL_NO_CONTEXT) || (read != EGL_NO_SURFACE) ||
668 (draw != EGL_NO_SURFACE) ) {
669 if (!dp->isReady()) return setError(EGL_NOT_INITIALIZED, EGL_FALSE);
672 // get a reference to the object passed in
673 ContextRef _c(dp.get(), ctx);
674 SurfaceRef _d(dp.get(), draw);
675 SurfaceRef _r(dp.get(), read);
677 // validate the context (if not EGL_NO_CONTEXT)
678 if ((ctx != EGL_NO_CONTEXT) && !_c.get()) {
679 // EGL_NO_CONTEXT is valid
680 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
683 // these are the underlying implementation's object
684 EGLContext impl_ctx = EGL_NO_CONTEXT;
685 EGLSurface impl_draw = EGL_NO_SURFACE;
686 EGLSurface impl_read = EGL_NO_SURFACE;
688 // these are our objects structs passed in
689 egl_context_t * c = NULL;
690 egl_surface_t const * d = NULL;
691 egl_surface_t const * r = NULL;
693 // these are the current objects structs
694 egl_context_t * cur_c = get_context(getContext());
696 if (ctx != EGL_NO_CONTEXT) {
697 c = get_context(ctx);
698 impl_ctx = c->context;
700 // no context given, use the implementation of the current context
701 if (draw != EGL_NO_SURFACE || read != EGL_NO_SURFACE) {
702 // calling eglMakeCurrent( ..., !=0, !=0, EGL_NO_CONTEXT);
703 return setError(EGL_BAD_MATCH, EGL_FALSE);
706 // no current context
707 // not an error, there is just no current context.
712 // retrieve the underlying implementation's draw EGLSurface
713 if (draw != EGL_NO_SURFACE) {
714 if (!_d.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
715 d = get_surface(draw);
716 impl_draw = d->surface;
719 // retrieve the underlying implementation's read EGLSurface
720 if (read != EGL_NO_SURFACE) {
721 if (!_r.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
722 r = get_surface(read);
723 impl_read = r->surface;
727 EGLBoolean result = dp->makeCurrent(c, cur_c,
729 impl_draw, impl_read, impl_ctx);
731 if (result == EGL_TRUE) {
733 setGLHooksThreadSpecific(c->cnx->hooks[c->version]);
734 egl_tls_t::setContext(ctx);
736 if (getEGLDebugLevel() > 0)
737 GLTrace_eglMakeCurrent(c->version, c->cnx->hooks[c->version], ctx);
743 setGLHooksThreadSpecific(&gHooksNoContext);
744 egl_tls_t::setContext(EGL_NO_CONTEXT);
747 // this will ALOGE the error
748 egl_connection_t* const cnx = &gEGLImpl;
749 result = setError(cnx->egl.eglGetError(), EGL_FALSE);
755 EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx,
756 EGLint attribute, EGLint *value)
760 const egl_display_ptr dp = validate_display(dpy);
761 if (!dp) return EGL_FALSE;
763 ContextRef _c(dp.get(), ctx);
764 if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
766 egl_context_t * const c = get_context(ctx);
767 return c->cnx->egl.eglQueryContext(
768 dp->disp.dpy, c->context, attribute, value);
772 EGLContext eglGetCurrentContext(void)
774 // could be called before eglInitialize(), but we wouldn't have a context
775 // then, and this function would correctly return EGL_NO_CONTEXT.
779 EGLContext ctx = getContext();
783 EGLSurface eglGetCurrentSurface(EGLint readdraw)
785 // could be called before eglInitialize(), but we wouldn't have a context
786 // then, and this function would correctly return EGL_NO_SURFACE.
790 EGLContext ctx = getContext();
792 egl_context_t const * const c = get_context(ctx);
793 if (!c) return setError(EGL_BAD_CONTEXT, EGL_NO_SURFACE);
795 case EGL_READ: return c->read;
796 case EGL_DRAW: return c->draw;
797 default: return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
800 return EGL_NO_SURFACE;
803 EGLDisplay eglGetCurrentDisplay(void)
805 // could be called before eglInitialize(), but we wouldn't have a context
806 // then, and this function would correctly return EGL_NO_DISPLAY.
810 EGLContext ctx = getContext();
812 egl_context_t const * const c = get_context(ctx);
813 if (!c) return setError(EGL_BAD_CONTEXT, EGL_NO_SURFACE);
816 return EGL_NO_DISPLAY;
819 EGLBoolean eglWaitGL(void)
823 egl_connection_t* const cnx = &gEGLImpl;
825 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
827 return cnx->egl.eglWaitGL();
830 EGLBoolean eglWaitNative(EGLint engine)
834 egl_connection_t* const cnx = &gEGLImpl;
836 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
838 return cnx->egl.eglWaitNative(engine);
841 EGLint eglGetError(void)
843 EGLint err = EGL_SUCCESS;
844 egl_connection_t* const cnx = &gEGLImpl;
846 err = cnx->egl.eglGetError();
848 if (err == EGL_SUCCESS) {
849 err = egl_tls_t::getError();
854 static __eglMustCastToProperFunctionPointerType findBuiltinGLWrapper(
855 const char* procname) {
856 const egl_connection_t* cnx = &gEGLImpl;
859 proc = dlsym(cnx->libGles2, procname);
860 if (proc) return (__eglMustCastToProperFunctionPointerType)proc;
862 proc = dlsym(cnx->libGles1, procname);
863 if (proc) return (__eglMustCastToProperFunctionPointerType)proc;
868 __eglMustCastToProperFunctionPointerType eglGetProcAddress(const char *procname)
870 // eglGetProcAddress() could be the very first function called
871 // in which case we must make sure we've initialized ourselves, this
872 // happens the first time egl_get_display() is called.
876 if (egl_init_drivers() == EGL_FALSE) {
877 setError(EGL_BAD_PARAMETER, NULL);
881 if (FILTER_EXTENSIONS(procname)) {
885 __eglMustCastToProperFunctionPointerType addr;
886 addr = findProcAddress(procname, sExtensionMap, NELEM(sExtensionMap));
887 if (addr) return addr;
889 addr = findBuiltinGLWrapper(procname);
890 if (addr) return addr;
892 // this protects accesses to sGLExtentionMap and sGLExtentionSlot
893 pthread_mutex_lock(&sExtensionMapMutex);
896 * Since eglGetProcAddress() is not associated to anything, it needs
897 * to return a function pointer that "works" regardless of what
898 * the current context is.
900 * For this reason, we return a "forwarder", a small stub that takes
901 * care of calling the function associated with the context
904 * We first look for extensions we've already resolved, if we're seeing
905 * this extension for the first time, we go through all our
906 * implementations and call eglGetProcAddress() and record the
907 * result in the appropriate implementation hooks and return the
908 * address of the forwarder corresponding to that hook set.
912 const String8 name(procname);
913 addr = sGLExtentionMap.valueFor(name);
914 const int slot = sGLExtentionSlot;
916 ALOGE_IF(slot >= MAX_NUMBER_OF_GL_EXTENSIONS,
917 "no more slots for eglGetProcAddress(\"%s\")",
921 gl_hooks_t *debugHooks = GLTrace_getGLHooks();
924 if (!addr && (slot < MAX_NUMBER_OF_GL_EXTENSIONS)) {
927 egl_connection_t* const cnx = &gEGLImpl;
928 if (cnx->dso && cnx->egl.eglGetProcAddress) {
929 // Extensions are independent of the bound context
931 cnx->hooks[egl_connection_t::GLESv1_INDEX]->ext.extensions[slot] =
932 cnx->hooks[egl_connection_t::GLESv2_INDEX]->ext.extensions[slot] =
934 debugHooks->ext.extensions[slot] =
935 gHooksTrace.ext.extensions[slot] =
937 cnx->egl.eglGetProcAddress(procname);
938 if (addr) found = true;
942 addr = gExtensionForwarders[slot];
943 sGLExtentionMap.add(name, addr);
948 pthread_mutex_unlock(&sExtensionMapMutex);
952 class FrameCompletionThread : public Thread {
955 static void queueSync(EGLSyncKHR sync) {
956 static sp<FrameCompletionThread> thread(new FrameCompletionThread);
957 static bool running = false;
959 thread->run("GPUFrameCompletion");
963 Mutex::Autolock lock(thread->mMutex);
964 ScopedTrace st(ATRACE_TAG, String8::format("kicked off frame %d",
965 thread->mFramesQueued).string());
966 thread->mQueue.push_back(sync);
967 thread->mCondition.signal();
968 thread->mFramesQueued++;
969 ATRACE_INT("GPU Frames Outstanding", thread->mQueue.size());
974 FrameCompletionThread() : mFramesQueued(0), mFramesCompleted(0) {}
976 virtual bool threadLoop() {
980 Mutex::Autolock lock(mMutex);
981 while (mQueue.isEmpty()) {
982 mCondition.wait(mMutex);
985 frameNum = mFramesCompleted;
987 EGLDisplay dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
989 ScopedTrace st(ATRACE_TAG, String8::format("waiting for frame %d",
991 EGLint result = eglClientWaitSyncKHR(dpy, sync, 0, EGL_FOREVER_KHR);
992 if (result == EGL_FALSE) {
993 ALOGE("FrameCompletion: error waiting for fence: %#x", eglGetError());
994 } else if (result == EGL_TIMEOUT_EXPIRED_KHR) {
995 ALOGE("FrameCompletion: timeout waiting for fence");
997 eglDestroySyncKHR(dpy, sync);
1000 Mutex::Autolock lock(mMutex);
1003 ATRACE_INT("GPU Frames Outstanding", mQueue.size());
1008 uint32_t mFramesQueued;
1009 uint32_t mFramesCompleted;
1010 Vector<EGLSyncKHR> mQueue;
1011 Condition mCondition;
1015 EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw)
1020 const egl_display_ptr dp = validate_display(dpy);
1021 if (!dp) return EGL_FALSE;
1023 SurfaceRef _s(dp.get(), draw);
1025 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1028 gl_hooks_t const *trace_hooks = getGLTraceThreadSpecific();
1029 if (getEGLDebugLevel() > 0) {
1030 if (trace_hooks == NULL) {
1031 if (GLTrace_start() < 0) {
1032 ALOGE("Disabling Tracer for OpenGL ES");
1033 setEGLDebugLevel(0);
1035 // switch over to the trace version of hooks
1036 EGLContext ctx = egl_tls_t::getContext();
1037 egl_context_t * const c = get_context(ctx);
1039 setGLHooksThreadSpecific(c->cnx->hooks[c->version]);
1040 GLTrace_eglMakeCurrent(c->version, c->cnx->hooks[c->version], ctx);
1045 GLTrace_eglSwapBuffers(dpy, draw);
1046 } else if (trace_hooks != NULL) {
1047 // tracing is now disabled, so switch back to the non trace version
1048 EGLContext ctx = egl_tls_t::getContext();
1049 egl_context_t * const c = get_context(ctx);
1050 if (c) setGLHooksThreadSpecific(c->cnx->hooks[c->version]);
1055 egl_surface_t const * const s = get_surface(draw);
1057 if (CC_UNLIKELY(dp->traceGpuCompletion)) {
1058 EGLSyncKHR sync = eglCreateSyncKHR(dpy, EGL_SYNC_FENCE_KHR, NULL);
1059 if (sync != EGL_NO_SYNC_KHR) {
1060 FrameCompletionThread::queueSync(sync);
1064 if (CC_UNLIKELY(dp->finishOnSwap)) {
1066 egl_context_t * const c = get_context( egl_tls_t::getContext() );
1068 // glReadPixels() ensures that the frame is complete
1069 s->cnx->hooks[c->version]->gl.glReadPixels(0,0,1,1,
1070 GL_RGBA,GL_UNSIGNED_BYTE,&pixel);
1074 return s->cnx->egl.eglSwapBuffers(dp->disp.dpy, s->surface);
1077 EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface,
1078 NativePixmapType target)
1082 const egl_display_ptr dp = validate_display(dpy);
1083 if (!dp) return EGL_FALSE;
1085 SurfaceRef _s(dp.get(), surface);
1087 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1089 egl_surface_t const * const s = get_surface(surface);
1090 return s->cnx->egl.eglCopyBuffers(dp->disp.dpy, s->surface, target);
1093 const char* eglQueryString(EGLDisplay dpy, EGLint name)
1097 const egl_display_ptr dp = validate_display(dpy);
1098 if (!dp) return (const char *) NULL;
1102 return dp->getVendorString();
1104 return dp->getVersionString();
1105 case EGL_EXTENSIONS:
1106 return dp->getExtensionString();
1107 case EGL_CLIENT_APIS:
1108 return dp->getClientApiString();
1110 return setError(EGL_BAD_PARAMETER, (const char *)0);
1113 EGLAPI const char* eglQueryStringImplementationANDROID(EGLDisplay dpy, EGLint name)
1117 const egl_display_ptr dp = validate_display(dpy);
1118 if (!dp) return (const char *) NULL;
1122 return dp->disp.queryString.vendor;
1124 return dp->disp.queryString.version;
1125 case EGL_EXTENSIONS:
1126 return dp->disp.queryString.extensions;
1127 case EGL_CLIENT_APIS:
1128 return dp->disp.queryString.clientApi;
1130 return setError(EGL_BAD_PARAMETER, (const char *)0);
1133 // ----------------------------------------------------------------------------
1135 // ----------------------------------------------------------------------------
1137 EGLBoolean eglSurfaceAttrib(
1138 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value)
1142 const egl_display_ptr dp = validate_display(dpy);
1143 if (!dp) return EGL_FALSE;
1145 SurfaceRef _s(dp.get(), surface);
1147 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1149 egl_surface_t const * const s = get_surface(surface);
1150 if (s->cnx->egl.eglSurfaceAttrib) {
1151 return s->cnx->egl.eglSurfaceAttrib(
1152 dp->disp.dpy, s->surface, attribute, value);
1154 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1157 EGLBoolean eglBindTexImage(
1158 EGLDisplay dpy, EGLSurface surface, EGLint buffer)
1162 const egl_display_ptr dp = validate_display(dpy);
1163 if (!dp) return EGL_FALSE;
1165 SurfaceRef _s(dp.get(), surface);
1167 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1169 egl_surface_t const * const s = get_surface(surface);
1170 if (s->cnx->egl.eglBindTexImage) {
1171 return s->cnx->egl.eglBindTexImage(
1172 dp->disp.dpy, s->surface, buffer);
1174 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1177 EGLBoolean eglReleaseTexImage(
1178 EGLDisplay dpy, EGLSurface surface, EGLint buffer)
1182 const egl_display_ptr dp = validate_display(dpy);
1183 if (!dp) return EGL_FALSE;
1185 SurfaceRef _s(dp.get(), surface);
1187 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1189 egl_surface_t const * const s = get_surface(surface);
1190 if (s->cnx->egl.eglReleaseTexImage) {
1191 return s->cnx->egl.eglReleaseTexImage(
1192 dp->disp.dpy, s->surface, buffer);
1194 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1197 EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval)
1201 const egl_display_ptr dp = validate_display(dpy);
1202 if (!dp) return EGL_FALSE;
1204 EGLBoolean res = EGL_TRUE;
1205 egl_connection_t* const cnx = &gEGLImpl;
1206 if (cnx->dso && cnx->egl.eglSwapInterval) {
1207 res = cnx->egl.eglSwapInterval(dp->disp.dpy, interval);
1214 // ----------------------------------------------------------------------------
1216 // ----------------------------------------------------------------------------
1218 EGLBoolean eglWaitClient(void)
1222 egl_connection_t* const cnx = &gEGLImpl;
1224 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
1227 if (cnx->egl.eglWaitClient) {
1228 res = cnx->egl.eglWaitClient();
1230 res = cnx->egl.eglWaitGL();
1235 EGLBoolean eglBindAPI(EGLenum api)
1239 if (egl_init_drivers() == EGL_FALSE) {
1240 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1243 // bind this API on all EGLs
1244 EGLBoolean res = EGL_TRUE;
1245 egl_connection_t* const cnx = &gEGLImpl;
1246 if (cnx->dso && cnx->egl.eglBindAPI) {
1247 res = cnx->egl.eglBindAPI(api);
1252 EGLenum eglQueryAPI(void)
1256 if (egl_init_drivers() == EGL_FALSE) {
1257 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1260 egl_connection_t* const cnx = &gEGLImpl;
1261 if (cnx->dso && cnx->egl.eglQueryAPI) {
1262 return cnx->egl.eglQueryAPI();
1265 // or, it can only be OpenGL ES
1266 return EGL_OPENGL_ES_API;
1269 EGLBoolean eglReleaseThread(void)
1274 if (getEGLDebugLevel() > 0)
1275 GLTrace_eglReleaseThread();
1278 // If there is context bound to the thread, release it
1279 egl_display_t::loseCurrent(get_context(getContext()));
1281 egl_connection_t* const cnx = &gEGLImpl;
1282 if (cnx->dso && cnx->egl.eglReleaseThread) {
1283 cnx->egl.eglReleaseThread();
1285 egl_tls_t::clearTLS();
1289 EGLSurface eglCreatePbufferFromClientBuffer(
1290 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer,
1291 EGLConfig config, const EGLint *attrib_list)
1295 egl_connection_t* cnx = NULL;
1296 const egl_display_ptr dp = validate_display_connection(dpy, cnx);
1297 if (!dp) return EGL_FALSE;
1298 if (cnx->egl.eglCreatePbufferFromClientBuffer) {
1299 return cnx->egl.eglCreatePbufferFromClientBuffer(
1300 dp->disp.dpy, buftype, buffer, config, attrib_list);
1302 return setError(EGL_BAD_CONFIG, EGL_NO_SURFACE);
1305 // ----------------------------------------------------------------------------
1306 // EGL_EGLEXT_VERSION 3
1307 // ----------------------------------------------------------------------------
1309 EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface,
1310 const EGLint *attrib_list)
1314 const egl_display_ptr dp = validate_display(dpy);
1315 if (!dp) return EGL_FALSE;
1317 SurfaceRef _s(dp.get(), surface);
1319 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1321 egl_surface_t const * const s = get_surface(surface);
1322 if (s->cnx->egl.eglLockSurfaceKHR) {
1323 return s->cnx->egl.eglLockSurfaceKHR(
1324 dp->disp.dpy, s->surface, attrib_list);
1326 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1329 EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface)
1333 const egl_display_ptr dp = validate_display(dpy);
1334 if (!dp) return EGL_FALSE;
1336 SurfaceRef _s(dp.get(), surface);
1338 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1340 egl_surface_t const * const s = get_surface(surface);
1341 if (s->cnx->egl.eglUnlockSurfaceKHR) {
1342 return s->cnx->egl.eglUnlockSurfaceKHR(dp->disp.dpy, s->surface);
1344 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1347 EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
1348 EGLClientBuffer buffer, const EGLint *attrib_list)
1352 const egl_display_ptr dp = validate_display(dpy);
1353 if (!dp) return EGL_NO_IMAGE_KHR;
1355 ContextRef _c(dp.get(), ctx);
1356 egl_context_t * const c = _c.get();
1358 EGLImageKHR result = EGL_NO_IMAGE_KHR;
1359 egl_connection_t* const cnx = &gEGLImpl;
1360 if (cnx->dso && cnx->egl.eglCreateImageKHR) {
1361 result = cnx->egl.eglCreateImageKHR(
1363 c ? c->context : EGL_NO_CONTEXT,
1364 target, buffer, attrib_list);
1369 EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img)
1373 const egl_display_ptr dp = validate_display(dpy);
1374 if (!dp) return EGL_FALSE;
1376 EGLBoolean result = EGL_FALSE;
1377 egl_connection_t* const cnx = &gEGLImpl;
1378 if (cnx->dso && cnx->egl.eglDestroyImageKHR) {
1379 result = cnx->egl.eglDestroyImageKHR(dp->disp.dpy, img);
1384 // ----------------------------------------------------------------------------
1385 // EGL_EGLEXT_VERSION 5
1386 // ----------------------------------------------------------------------------
1389 EGLSyncKHR eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list)
1393 const egl_display_ptr dp = validate_display(dpy);
1394 if (!dp) return EGL_NO_SYNC_KHR;
1396 EGLSyncKHR result = EGL_NO_SYNC_KHR;
1397 egl_connection_t* const cnx = &gEGLImpl;
1398 if (cnx->dso && cnx->egl.eglCreateSyncKHR) {
1399 result = cnx->egl.eglCreateSyncKHR(dp->disp.dpy, type, attrib_list);
1404 EGLBoolean eglDestroySyncKHR(EGLDisplay dpy, EGLSyncKHR sync)
1408 const egl_display_ptr dp = validate_display(dpy);
1409 if (!dp) return EGL_FALSE;
1411 EGLBoolean result = EGL_FALSE;
1412 egl_connection_t* const cnx = &gEGLImpl;
1413 if (cnx->dso && cnx->egl.eglDestroySyncKHR) {
1414 result = cnx->egl.eglDestroySyncKHR(dp->disp.dpy, sync);
1419 EGLBoolean eglSignalSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLenum mode) {
1422 const egl_display_ptr dp = validate_display(dpy);
1423 if (!dp) return EGL_FALSE;
1425 EGLBoolean result = EGL_FALSE;
1426 egl_connection_t* const cnx = &gEGLImpl;
1427 if (cnx->dso && cnx->egl.eglSignalSyncKHR) {
1428 result = cnx->egl.eglSignalSyncKHR(
1429 dp->disp.dpy, sync, mode);
1434 EGLint eglClientWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync,
1435 EGLint flags, EGLTimeKHR timeout)
1439 const egl_display_ptr dp = validate_display(dpy);
1440 if (!dp) return EGL_FALSE;
1442 EGLBoolean result = EGL_FALSE;
1443 egl_connection_t* const cnx = &gEGLImpl;
1444 if (cnx->dso && cnx->egl.eglClientWaitSyncKHR) {
1445 result = cnx->egl.eglClientWaitSyncKHR(
1446 dp->disp.dpy, sync, flags, timeout);
1451 EGLBoolean eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync,
1452 EGLint attribute, EGLint *value)
1456 const egl_display_ptr dp = validate_display(dpy);
1457 if (!dp) return EGL_FALSE;
1459 EGLBoolean result = EGL_FALSE;
1460 egl_connection_t* const cnx = &gEGLImpl;
1461 if (cnx->dso && cnx->egl.eglGetSyncAttribKHR) {
1462 result = cnx->egl.eglGetSyncAttribKHR(
1463 dp->disp.dpy, sync, attribute, value);
1468 // ----------------------------------------------------------------------------
1469 // EGL_EGLEXT_VERSION 15
1470 // ----------------------------------------------------------------------------
1472 EGLint eglWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags) {
1474 const egl_display_ptr dp = validate_display(dpy);
1475 if (!dp) return EGL_FALSE;
1476 EGLint result = EGL_FALSE;
1477 egl_connection_t* const cnx = &gEGLImpl;
1478 if (cnx->dso && cnx->egl.eglWaitSyncKHR) {
1479 result = cnx->egl.eglWaitSyncKHR(dp->disp.dpy, sync, flags);
1484 // ----------------------------------------------------------------------------
1485 // ANDROID extensions
1486 // ----------------------------------------------------------------------------
1488 EGLint eglDupNativeFenceFDANDROID(EGLDisplay dpy, EGLSyncKHR sync)
1492 const egl_display_ptr dp = validate_display(dpy);
1493 if (!dp) return EGL_NO_NATIVE_FENCE_FD_ANDROID;
1495 EGLint result = EGL_NO_NATIVE_FENCE_FD_ANDROID;
1496 egl_connection_t* const cnx = &gEGLImpl;
1497 if (cnx->dso && cnx->egl.eglDupNativeFenceFDANDROID) {
1498 result = cnx->egl.eglDupNativeFenceFDANDROID(dp->disp.dpy, sync);
1503 EGLBoolean eglPresentationTimeANDROID(EGLDisplay dpy, EGLSurface surface,
1504 EGLnsecsANDROID time)
1508 const egl_display_ptr dp = validate_display(dpy);
1513 SurfaceRef _s(dp.get(), surface);
1515 setError(EGL_BAD_SURFACE, EGL_FALSE);
1519 egl_surface_t const * const s = get_surface(surface);
1520 native_window_set_buffers_timestamp(s->win.get(), time);
1525 // ----------------------------------------------------------------------------
1526 // NVIDIA extensions
1527 // ----------------------------------------------------------------------------
1528 EGLuint64NV eglGetSystemTimeFrequencyNV()
1532 if (egl_init_drivers() == EGL_FALSE) {
1533 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1536 EGLuint64NV ret = 0;
1537 egl_connection_t* const cnx = &gEGLImpl;
1539 if (cnx->dso && cnx->egl.eglGetSystemTimeFrequencyNV) {
1540 return cnx->egl.eglGetSystemTimeFrequencyNV();
1543 return setErrorQuiet(EGL_BAD_DISPLAY, 0);
1546 EGLuint64NV eglGetSystemTimeNV()
1550 if (egl_init_drivers() == EGL_FALSE) {
1551 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1554 EGLuint64NV ret = 0;
1555 egl_connection_t* const cnx = &gEGLImpl;
1557 if (cnx->dso && cnx->egl.eglGetSystemTimeNV) {
1558 return cnx->egl.eglGetSystemTimeNV();
1561 return setErrorQuiet(EGL_BAD_DISPLAY, 0);