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_texture_2D_image "
86 "EGL_KHR_gl_texture_cubemap_image "
87 "EGL_KHR_gl_renderbuffer_image "
88 "EGL_KHR_reusable_sync "
90 "EGL_KHR_create_context "
91 "EGL_EXT_create_context_robustness "
93 "EGL_ANDROID_image_native_buffer " // mandatory
94 "EGL_KHR_wait_sync " // strongly recommended
97 // extensions not exposed to applications but used by the ANDROID system
98 // "EGL_ANDROID_blob_cache " // strongly recommended
99 // "EGL_IMG_hibernate_process " // optional
100 // "EGL_ANDROID_native_fence_sync " // strongly recommended
101 // "EGL_ANDROID_framebuffer_target " // mandatory for HWC 1.1
102 // "EGL_ANDROID_recordable " // mandatory
106 * EGL Extensions entry-points exposed to 3rd party applications
107 * (keep in sync with gExtensionString above)
110 static const extention_map_t sExtensionMap[] = {
111 // EGL_KHR_lock_surface
112 { "eglLockSurfaceKHR",
113 (__eglMustCastToProperFunctionPointerType)&eglLockSurfaceKHR },
114 { "eglUnlockSurfaceKHR",
115 (__eglMustCastToProperFunctionPointerType)&eglUnlockSurfaceKHR },
117 // EGL_KHR_image, EGL_KHR_image_base
118 { "eglCreateImageKHR",
119 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR },
120 { "eglDestroyImageKHR",
121 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR },
123 // EGL_KHR_reusable_sync, EGL_KHR_fence_sync
124 { "eglCreateSyncKHR",
125 (__eglMustCastToProperFunctionPointerType)&eglCreateSyncKHR },
126 { "eglDestroySyncKHR",
127 (__eglMustCastToProperFunctionPointerType)&eglDestroySyncKHR },
128 { "eglClientWaitSyncKHR",
129 (__eglMustCastToProperFunctionPointerType)&eglClientWaitSyncKHR },
130 { "eglSignalSyncKHR",
131 (__eglMustCastToProperFunctionPointerType)&eglSignalSyncKHR },
132 { "eglGetSyncAttribKHR",
133 (__eglMustCastToProperFunctionPointerType)&eglGetSyncAttribKHR },
135 // EGL_NV_system_time
136 { "eglGetSystemTimeFrequencyNV",
137 (__eglMustCastToProperFunctionPointerType)&eglGetSystemTimeFrequencyNV },
138 { "eglGetSystemTimeNV",
139 (__eglMustCastToProperFunctionPointerType)&eglGetSystemTimeNV },
143 (__eglMustCastToProperFunctionPointerType)&eglWaitSyncKHR },
145 // EGL_ANDROID_presentation_time
146 { "eglPresentationTimeANDROID",
147 (__eglMustCastToProperFunctionPointerType)&eglPresentationTimeANDROID },
151 * These extensions entry-points should not be exposed to applications.
152 * They're used internally by the Android EGL layer.
154 #define FILTER_EXTENSIONS(procname) \
155 (!strcmp((procname), "eglSetBlobCacheFuncsANDROID") || \
156 !strcmp((procname), "eglHibernateProcessIMG") || \
157 !strcmp((procname), "eglAwakenProcessIMG") || \
158 !strcmp((procname), "eglDupNativeFenceFDANDROID"))
162 // accesses protected by sExtensionMapMutex
163 static DefaultKeyedVector<String8, __eglMustCastToProperFunctionPointerType> sGLExtentionMap;
164 static int sGLExtentionSlot = 0;
165 static pthread_mutex_t sExtensionMapMutex = PTHREAD_MUTEX_INITIALIZER;
167 static void(*findProcAddress(const char* name,
168 const extention_map_t* map, size_t n))() {
169 for (uint32_t i=0 ; i<n ; i++) {
170 if (!strcmp(name, map[i].name)) {
171 return map[i].address;
177 // ----------------------------------------------------------------------------
179 extern void setGLHooksThreadSpecific(gl_hooks_t const *value);
180 extern EGLBoolean egl_init_drivers();
181 extern const __eglMustCastToProperFunctionPointerType gExtensionForwarders[MAX_NUMBER_OF_GL_EXTENSIONS];
182 extern int getEGLDebugLevel();
183 extern void setEGLDebugLevel(int level);
184 extern gl_hooks_t gHooksTrace;
186 } // namespace android;
189 // ----------------------------------------------------------------------------
191 static inline void clearError() { egl_tls_t::clearError(); }
192 static inline EGLContext getContext() { return egl_tls_t::getContext(); }
194 // ----------------------------------------------------------------------------
196 EGLDisplay eglGetDisplay(EGLNativeDisplayType display)
200 uint32_t index = uint32_t(display);
201 if (index >= NUM_DISPLAYS) {
202 return setError(EGL_BAD_PARAMETER, EGL_NO_DISPLAY);
205 if (egl_init_drivers() == EGL_FALSE) {
206 return setError(EGL_BAD_PARAMETER, EGL_NO_DISPLAY);
209 EGLDisplay dpy = egl_display_t::getFromNativeDisplay(display);
213 // ----------------------------------------------------------------------------
215 // ----------------------------------------------------------------------------
217 EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
221 egl_display_ptr dp = get_display(dpy);
222 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
224 EGLBoolean res = dp->initialize(major, minor);
229 EGLBoolean eglTerminate(EGLDisplay dpy)
231 // NOTE: don't unload the drivers b/c some APIs can be called
232 // after eglTerminate() has been called. eglTerminate() only
233 // terminates an EGLDisplay, not a EGL itself.
237 egl_display_ptr dp = get_display(dpy);
238 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
240 EGLBoolean res = dp->terminate();
245 // ----------------------------------------------------------------------------
247 // ----------------------------------------------------------------------------
249 EGLBoolean eglGetConfigs( EGLDisplay dpy,
251 EGLint config_size, EGLint *num_config)
255 const egl_display_ptr dp = validate_display(dpy);
256 if (!dp) return EGL_FALSE;
259 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
262 EGLBoolean res = EGL_FALSE;
265 egl_connection_t* const cnx = &gEGLImpl;
267 res = cnx->egl.eglGetConfigs(
268 dp->disp.dpy, configs, config_size, num_config);
274 EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list,
275 EGLConfig *configs, EGLint config_size,
280 const egl_display_ptr dp = validate_display(dpy);
281 if (!dp) return EGL_FALSE;
284 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
287 EGLBoolean res = EGL_FALSE;
290 egl_connection_t* const cnx = &gEGLImpl;
293 char value[PROPERTY_VALUE_MAX];
294 property_get("debug.egl.force_msaa", value, "false");
296 if (!strcmp(value, "true")) {
297 size_t attribCount = 0;
298 EGLint attrib = attrib_list[0];
300 // Only enable MSAA if the context is OpenGL ES 2.0 and
301 // if no caveat is requested
302 const EGLint *attribRendererable = NULL;
303 const EGLint *attribCaveat = NULL;
305 // Count the number of attributes and look for
306 // EGL_RENDERABLE_TYPE and EGL_CONFIG_CAVEAT
307 while (attrib != EGL_NONE) {
308 attrib = attrib_list[attribCount];
310 case EGL_RENDERABLE_TYPE:
311 attribRendererable = &attrib_list[attribCount];
313 case EGL_CONFIG_CAVEAT:
314 attribCaveat = &attrib_list[attribCount];
320 if (attribRendererable && attribRendererable[1] == EGL_OPENGL_ES2_BIT &&
321 (!attribCaveat || attribCaveat[1] != EGL_NONE)) {
323 // Insert 2 extra attributes to force-enable MSAA 4x
324 EGLint aaAttribs[attribCount + 4];
325 aaAttribs[0] = EGL_SAMPLE_BUFFERS;
327 aaAttribs[2] = EGL_SAMPLES;
330 memcpy(&aaAttribs[4], attrib_list, attribCount * sizeof(EGLint));
333 EGLBoolean resAA = cnx->egl.eglChooseConfig(
334 dp->disp.dpy, aaAttribs, configs, config_size, &numConfigAA);
336 if (resAA == EGL_TRUE && numConfigAA > 0) {
337 ALOGD("Enabling MSAA 4x");
338 *num_config = numConfigAA;
345 res = cnx->egl.eglChooseConfig(
346 dp->disp.dpy, attrib_list, configs, config_size, num_config);
351 EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,
352 EGLint attribute, EGLint *value)
356 egl_connection_t* cnx = NULL;
357 const egl_display_ptr dp = validate_display_connection(dpy, cnx);
358 if (!dp) return EGL_FALSE;
360 return cnx->egl.eglGetConfigAttrib(
361 dp->disp.dpy, config, attribute, value);
364 // ----------------------------------------------------------------------------
366 // ----------------------------------------------------------------------------
368 EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config,
369 NativeWindowType window,
370 const EGLint *attrib_list)
374 egl_connection_t* cnx = NULL;
375 egl_display_ptr dp = validate_display_connection(dpy, cnx);
377 EGLDisplay iDpy = dp->disp.dpy;
380 if (native_window_api_connect(window, NATIVE_WINDOW_API_EGL) != OK) {
381 ALOGE("EGLNativeWindowType %p already connected to another API",
383 return setError(EGL_BAD_ALLOC, EGL_NO_SURFACE);
386 // set the native window's buffers format to match this config
387 if (cnx->egl.eglGetConfigAttrib(iDpy,
388 config, EGL_NATIVE_VISUAL_ID, &format)) {
390 int err = native_window_set_buffers_format(window, format);
392 ALOGE("error setting native window pixel format: %s (%d)",
393 strerror(-err), err);
394 native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL);
395 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
400 // the EGL spec requires that a new EGLSurface default to swap interval
401 // 1, so explicitly set that on the window here.
402 ANativeWindow* anw = reinterpret_cast<ANativeWindow*>(window);
403 anw->setSwapInterval(anw, 1);
405 EGLSurface surface = cnx->egl.eglCreateWindowSurface(
406 iDpy, config, window, attrib_list);
407 if (surface != EGL_NO_SURFACE) {
408 egl_surface_t* s = new egl_surface_t(dp.get(), config, window,
413 // EGLSurface creation failed
414 native_window_set_buffers_format(window, 0);
415 native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL);
417 return EGL_NO_SURFACE;
420 EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config,
421 NativePixmapType pixmap,
422 const EGLint *attrib_list)
426 egl_connection_t* cnx = NULL;
427 egl_display_ptr dp = validate_display_connection(dpy, cnx);
429 EGLSurface surface = cnx->egl.eglCreatePixmapSurface(
430 dp->disp.dpy, config, pixmap, attrib_list);
431 if (surface != EGL_NO_SURFACE) {
432 egl_surface_t* s = new egl_surface_t(dp.get(), config, NULL,
437 return EGL_NO_SURFACE;
440 EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config,
441 const EGLint *attrib_list)
445 egl_connection_t* cnx = NULL;
446 egl_display_ptr dp = validate_display_connection(dpy, cnx);
448 EGLSurface surface = cnx->egl.eglCreatePbufferSurface(
449 dp->disp.dpy, config, attrib_list);
450 if (surface != EGL_NO_SURFACE) {
451 egl_surface_t* s = new egl_surface_t(dp.get(), config, NULL,
456 return EGL_NO_SURFACE;
459 EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface surface)
463 const egl_display_ptr dp = validate_display(dpy);
464 if (!dp) return EGL_FALSE;
466 SurfaceRef _s(dp.get(), surface);
468 return setError(EGL_BAD_SURFACE, EGL_FALSE);
470 egl_surface_t * const s = get_surface(surface);
471 EGLBoolean result = s->cnx->egl.eglDestroySurface(dp->disp.dpy, s->surface);
472 if (result == EGL_TRUE) {
478 EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface surface,
479 EGLint attribute, EGLint *value)
483 const egl_display_ptr dp = validate_display(dpy);
484 if (!dp) return EGL_FALSE;
486 SurfaceRef _s(dp.get(), surface);
488 return setError(EGL_BAD_SURFACE, EGL_FALSE);
490 egl_surface_t const * const s = get_surface(surface);
491 return s->cnx->egl.eglQuerySurface(
492 dp->disp.dpy, s->surface, attribute, value);
495 void EGLAPI eglBeginFrame(EGLDisplay dpy, EGLSurface surface) {
499 const egl_display_ptr dp = validate_display(dpy);
504 SurfaceRef _s(dp.get(), surface);
506 setError(EGL_BAD_SURFACE, EGL_FALSE);
511 // ----------------------------------------------------------------------------
513 // ----------------------------------------------------------------------------
515 EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config,
516 EGLContext share_list, const EGLint *attrib_list)
520 egl_connection_t* cnx = NULL;
521 const egl_display_ptr dp = validate_display_connection(dpy, cnx);
523 if (share_list != EGL_NO_CONTEXT) {
524 if (!ContextRef(dp.get(), share_list).get()) {
525 return setError(EGL_BAD_CONTEXT, EGL_NO_CONTEXT);
527 egl_context_t* const c = get_context(share_list);
528 share_list = c->context;
530 EGLContext context = cnx->egl.eglCreateContext(
531 dp->disp.dpy, config, share_list, attrib_list);
532 if (context != EGL_NO_CONTEXT) {
533 // figure out if it's a GLESv1 or GLESv2
536 while (*attrib_list != EGL_NONE) {
537 GLint attr = *attrib_list++;
538 GLint value = *attrib_list++;
539 if (attr == EGL_CONTEXT_CLIENT_VERSION) {
541 version = egl_connection_t::GLESv1_INDEX;
542 } else if (value == 2 || value == 3) {
543 version = egl_connection_t::GLESv2_INDEX;
548 egl_context_t* c = new egl_context_t(dpy, context, config, cnx,
551 if (getEGLDebugLevel() > 0)
552 GLTrace_eglCreateContext(version, c);
556 EGLint error = eglGetError();
557 ALOGE_IF(error == EGL_SUCCESS,
558 "eglCreateContext(%p, %p, %p, %p) returned EGL_NO_CONTEXT "
560 dpy, config, share_list, attrib_list);
563 return EGL_NO_CONTEXT;
566 EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
570 const egl_display_ptr dp = validate_display(dpy);
574 ContextRef _c(dp.get(), ctx);
576 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
578 egl_context_t * const c = get_context(ctx);
579 EGLBoolean result = c->cnx->egl.eglDestroyContext(dp->disp.dpy, c->context);
580 if (result == EGL_TRUE) {
586 EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw,
587 EGLSurface read, EGLContext ctx)
591 egl_display_ptr dp = validate_display(dpy);
592 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
594 // If ctx is not EGL_NO_CONTEXT, read is not EGL_NO_SURFACE, or draw is not
595 // EGL_NO_SURFACE, then an EGL_NOT_INITIALIZED error is generated if dpy is
596 // a valid but uninitialized display.
597 if ( (ctx != EGL_NO_CONTEXT) || (read != EGL_NO_SURFACE) ||
598 (draw != EGL_NO_SURFACE) ) {
599 if (!dp->isReady()) return setError(EGL_NOT_INITIALIZED, EGL_FALSE);
602 // get a reference to the object passed in
603 ContextRef _c(dp.get(), ctx);
604 SurfaceRef _d(dp.get(), draw);
605 SurfaceRef _r(dp.get(), read);
607 // validate the context (if not EGL_NO_CONTEXT)
608 if ((ctx != EGL_NO_CONTEXT) && !_c.get()) {
609 // EGL_NO_CONTEXT is valid
610 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
613 // these are the underlying implementation's object
614 EGLContext impl_ctx = EGL_NO_CONTEXT;
615 EGLSurface impl_draw = EGL_NO_SURFACE;
616 EGLSurface impl_read = EGL_NO_SURFACE;
618 // these are our objects structs passed in
619 egl_context_t * c = NULL;
620 egl_surface_t const * d = NULL;
621 egl_surface_t const * r = NULL;
623 // these are the current objects structs
624 egl_context_t * cur_c = get_context(getContext());
626 if (ctx != EGL_NO_CONTEXT) {
627 c = get_context(ctx);
628 impl_ctx = c->context;
630 // no context given, use the implementation of the current context
631 if (draw != EGL_NO_SURFACE || read != EGL_NO_SURFACE) {
632 // calling eglMakeCurrent( ..., !=0, !=0, EGL_NO_CONTEXT);
633 return setError(EGL_BAD_MATCH, EGL_FALSE);
636 // no current context
637 // not an error, there is just no current context.
642 // retrieve the underlying implementation's draw EGLSurface
643 if (draw != EGL_NO_SURFACE) {
644 if (!_d.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
645 d = get_surface(draw);
646 impl_draw = d->surface;
649 // retrieve the underlying implementation's read EGLSurface
650 if (read != EGL_NO_SURFACE) {
651 if (!_r.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
652 r = get_surface(read);
653 impl_read = r->surface;
657 EGLBoolean result = dp->makeCurrent(c, cur_c,
659 impl_draw, impl_read, impl_ctx);
661 if (result == EGL_TRUE) {
663 setGLHooksThreadSpecific(c->cnx->hooks[c->version]);
664 egl_tls_t::setContext(ctx);
666 if (getEGLDebugLevel() > 0)
667 GLTrace_eglMakeCurrent(c->version, c->cnx->hooks[c->version], ctx);
673 setGLHooksThreadSpecific(&gHooksNoContext);
674 egl_tls_t::setContext(EGL_NO_CONTEXT);
677 // this will ALOGE the error
678 result = setError(c->cnx->egl.eglGetError(), EGL_FALSE);
684 EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx,
685 EGLint attribute, EGLint *value)
689 const egl_display_ptr dp = validate_display(dpy);
690 if (!dp) return EGL_FALSE;
692 ContextRef _c(dp.get(), ctx);
693 if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
695 egl_context_t * const c = get_context(ctx);
696 return c->cnx->egl.eglQueryContext(
697 dp->disp.dpy, c->context, attribute, value);
701 EGLContext eglGetCurrentContext(void)
703 // could be called before eglInitialize(), but we wouldn't have a context
704 // then, and this function would correctly return EGL_NO_CONTEXT.
708 EGLContext ctx = getContext();
712 EGLSurface eglGetCurrentSurface(EGLint readdraw)
714 // could be called before eglInitialize(), but we wouldn't have a context
715 // then, and this function would correctly return EGL_NO_SURFACE.
719 EGLContext ctx = getContext();
721 egl_context_t const * const c = get_context(ctx);
722 if (!c) return setError(EGL_BAD_CONTEXT, EGL_NO_SURFACE);
724 case EGL_READ: return c->read;
725 case EGL_DRAW: return c->draw;
726 default: return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
729 return EGL_NO_SURFACE;
732 EGLDisplay eglGetCurrentDisplay(void)
734 // could be called before eglInitialize(), but we wouldn't have a context
735 // then, and this function would correctly return EGL_NO_DISPLAY.
739 EGLContext ctx = getContext();
741 egl_context_t const * const c = get_context(ctx);
742 if (!c) return setError(EGL_BAD_CONTEXT, EGL_NO_SURFACE);
745 return EGL_NO_DISPLAY;
748 EGLBoolean eglWaitGL(void)
752 egl_connection_t* const cnx = &gEGLImpl;
754 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
756 return cnx->egl.eglWaitGL();
759 EGLBoolean eglWaitNative(EGLint engine)
763 egl_connection_t* const cnx = &gEGLImpl;
765 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
767 return cnx->egl.eglWaitNative(engine);
770 EGLint eglGetError(void)
772 EGLint err = EGL_SUCCESS;
773 egl_connection_t* const cnx = &gEGLImpl;
775 err = cnx->egl.eglGetError();
777 if (err == EGL_SUCCESS) {
778 err = egl_tls_t::getError();
783 static __eglMustCastToProperFunctionPointerType findBuiltinGLWrapper(
784 const char* procname) {
785 const egl_connection_t* cnx = &gEGLImpl;
788 proc = dlsym(cnx->libGles2, procname);
789 if (proc) return (__eglMustCastToProperFunctionPointerType)proc;
791 proc = dlsym(cnx->libGles1, procname);
792 if (proc) return (__eglMustCastToProperFunctionPointerType)proc;
797 __eglMustCastToProperFunctionPointerType eglGetProcAddress(const char *procname)
799 // eglGetProcAddress() could be the very first function called
800 // in which case we must make sure we've initialized ourselves, this
801 // happens the first time egl_get_display() is called.
805 if (egl_init_drivers() == EGL_FALSE) {
806 setError(EGL_BAD_PARAMETER, NULL);
810 if (FILTER_EXTENSIONS(procname)) {
814 __eglMustCastToProperFunctionPointerType addr;
815 addr = findProcAddress(procname, sExtensionMap, NELEM(sExtensionMap));
816 if (addr) return addr;
818 addr = findBuiltinGLWrapper(procname);
819 if (addr) return addr;
821 // this protects accesses to sGLExtentionMap and sGLExtentionSlot
822 pthread_mutex_lock(&sExtensionMapMutex);
825 * Since eglGetProcAddress() is not associated to anything, it needs
826 * to return a function pointer that "works" regardless of what
827 * the current context is.
829 * For this reason, we return a "forwarder", a small stub that takes
830 * care of calling the function associated with the context
833 * We first look for extensions we've already resolved, if we're seeing
834 * this extension for the first time, we go through all our
835 * implementations and call eglGetProcAddress() and record the
836 * result in the appropriate implementation hooks and return the
837 * address of the forwarder corresponding to that hook set.
841 const String8 name(procname);
842 addr = sGLExtentionMap.valueFor(name);
843 const int slot = sGLExtentionSlot;
845 ALOGE_IF(slot >= MAX_NUMBER_OF_GL_EXTENSIONS,
846 "no more slots for eglGetProcAddress(\"%s\")",
850 gl_hooks_t *debugHooks = GLTrace_getGLHooks();
853 if (!addr && (slot < MAX_NUMBER_OF_GL_EXTENSIONS)) {
856 egl_connection_t* const cnx = &gEGLImpl;
857 if (cnx->dso && cnx->egl.eglGetProcAddress) {
858 // Extensions are independent of the bound context
860 cnx->hooks[egl_connection_t::GLESv1_INDEX]->ext.extensions[slot] =
861 cnx->hooks[egl_connection_t::GLESv2_INDEX]->ext.extensions[slot] =
863 debugHooks->ext.extensions[slot] =
864 gHooksTrace.ext.extensions[slot] =
866 cnx->egl.eglGetProcAddress(procname);
867 if (addr) found = true;
871 addr = gExtensionForwarders[slot];
872 sGLExtentionMap.add(name, addr);
877 pthread_mutex_unlock(&sExtensionMapMutex);
881 class FrameCompletionThread : public Thread {
884 static void queueSync(EGLSyncKHR sync) {
885 static sp<FrameCompletionThread> thread(new FrameCompletionThread);
886 static bool running = false;
888 thread->run("GPUFrameCompletion");
892 Mutex::Autolock lock(thread->mMutex);
893 ScopedTrace st(ATRACE_TAG, String8::format("kicked off frame %d",
894 thread->mFramesQueued).string());
895 thread->mQueue.push_back(sync);
896 thread->mCondition.signal();
897 thread->mFramesQueued++;
898 ATRACE_INT("GPU Frames Outstanding", thread->mQueue.size());
903 FrameCompletionThread() : mFramesQueued(0), mFramesCompleted(0) {}
905 virtual bool threadLoop() {
909 Mutex::Autolock lock(mMutex);
910 while (mQueue.isEmpty()) {
911 mCondition.wait(mMutex);
914 frameNum = mFramesCompleted;
916 EGLDisplay dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
918 ScopedTrace st(ATRACE_TAG, String8::format("waiting for frame %d",
920 EGLint result = eglClientWaitSyncKHR(dpy, sync, 0, EGL_FOREVER_KHR);
921 if (result == EGL_FALSE) {
922 ALOGE("FrameCompletion: error waiting for fence: %#x", eglGetError());
923 } else if (result == EGL_TIMEOUT_EXPIRED_KHR) {
924 ALOGE("FrameCompletion: timeout waiting for fence");
926 eglDestroySyncKHR(dpy, sync);
929 Mutex::Autolock lock(mMutex);
932 ATRACE_INT("GPU Frames Outstanding", mQueue.size());
937 uint32_t mFramesQueued;
938 uint32_t mFramesCompleted;
939 Vector<EGLSyncKHR> mQueue;
940 Condition mCondition;
944 EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw)
949 const egl_display_ptr dp = validate_display(dpy);
950 if (!dp) return EGL_FALSE;
952 SurfaceRef _s(dp.get(), draw);
954 return setError(EGL_BAD_SURFACE, EGL_FALSE);
957 gl_hooks_t const *trace_hooks = getGLTraceThreadSpecific();
958 if (getEGLDebugLevel() > 0) {
959 if (trace_hooks == NULL) {
960 if (GLTrace_start() < 0) {
961 ALOGE("Disabling Tracer for OpenGL ES");
964 // switch over to the trace version of hooks
965 EGLContext ctx = egl_tls_t::getContext();
966 egl_context_t * const c = get_context(ctx);
968 setGLHooksThreadSpecific(c->cnx->hooks[c->version]);
969 GLTrace_eglMakeCurrent(c->version, c->cnx->hooks[c->version], ctx);
974 GLTrace_eglSwapBuffers(dpy, draw);
975 } else if (trace_hooks != NULL) {
976 // tracing is now disabled, so switch back to the non trace version
977 EGLContext ctx = egl_tls_t::getContext();
978 egl_context_t * const c = get_context(ctx);
979 if (c) setGLHooksThreadSpecific(c->cnx->hooks[c->version]);
984 egl_surface_t const * const s = get_surface(draw);
986 if (CC_UNLIKELY(dp->traceGpuCompletion)) {
987 EGLSyncKHR sync = eglCreateSyncKHR(dpy, EGL_SYNC_FENCE_KHR, NULL);
988 if (sync != EGL_NO_SYNC_KHR) {
989 FrameCompletionThread::queueSync(sync);
993 if (CC_UNLIKELY(dp->finishOnSwap)) {
995 egl_context_t * const c = get_context( egl_tls_t::getContext() );
997 // glReadPixels() ensures that the frame is complete
998 s->cnx->hooks[c->version]->gl.glReadPixels(0,0,1,1,
999 GL_RGBA,GL_UNSIGNED_BYTE,&pixel);
1003 return s->cnx->egl.eglSwapBuffers(dp->disp.dpy, s->surface);
1006 EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface,
1007 NativePixmapType target)
1011 const egl_display_ptr dp = validate_display(dpy);
1012 if (!dp) return EGL_FALSE;
1014 SurfaceRef _s(dp.get(), surface);
1016 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1018 egl_surface_t const * const s = get_surface(surface);
1019 return s->cnx->egl.eglCopyBuffers(dp->disp.dpy, s->surface, target);
1022 const char* eglQueryString(EGLDisplay dpy, EGLint name)
1026 const egl_display_ptr dp = validate_display(dpy);
1027 if (!dp) return (const char *) NULL;
1031 return dp->getVendorString();
1033 return dp->getVersionString();
1034 case EGL_EXTENSIONS:
1035 return dp->getExtensionString();
1036 case EGL_CLIENT_APIS:
1037 return dp->getClientApiString();
1039 return setError(EGL_BAD_PARAMETER, (const char *)0);
1042 EGLAPI const char* eglQueryStringImplementationANDROID(EGLDisplay dpy, EGLint name)
1046 const egl_display_ptr dp = validate_display(dpy);
1047 if (!dp) return (const char *) NULL;
1051 return dp->disp.queryString.vendor;
1053 return dp->disp.queryString.version;
1054 case EGL_EXTENSIONS:
1055 return dp->disp.queryString.extensions;
1056 case EGL_CLIENT_APIS:
1057 return dp->disp.queryString.clientApi;
1059 return setError(EGL_BAD_PARAMETER, (const char *)0);
1062 // ----------------------------------------------------------------------------
1064 // ----------------------------------------------------------------------------
1066 EGLBoolean eglSurfaceAttrib(
1067 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value)
1071 const egl_display_ptr dp = validate_display(dpy);
1072 if (!dp) return EGL_FALSE;
1074 SurfaceRef _s(dp.get(), surface);
1076 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1078 egl_surface_t const * const s = get_surface(surface);
1079 if (s->cnx->egl.eglSurfaceAttrib) {
1080 return s->cnx->egl.eglSurfaceAttrib(
1081 dp->disp.dpy, s->surface, attribute, value);
1083 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1086 EGLBoolean eglBindTexImage(
1087 EGLDisplay dpy, EGLSurface surface, EGLint buffer)
1091 const egl_display_ptr dp = validate_display(dpy);
1092 if (!dp) return EGL_FALSE;
1094 SurfaceRef _s(dp.get(), surface);
1096 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1098 egl_surface_t const * const s = get_surface(surface);
1099 if (s->cnx->egl.eglBindTexImage) {
1100 return s->cnx->egl.eglBindTexImage(
1101 dp->disp.dpy, s->surface, buffer);
1103 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1106 EGLBoolean eglReleaseTexImage(
1107 EGLDisplay dpy, EGLSurface surface, EGLint buffer)
1111 const egl_display_ptr dp = validate_display(dpy);
1112 if (!dp) return EGL_FALSE;
1114 SurfaceRef _s(dp.get(), surface);
1116 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1118 egl_surface_t const * const s = get_surface(surface);
1119 if (s->cnx->egl.eglReleaseTexImage) {
1120 return s->cnx->egl.eglReleaseTexImage(
1121 dp->disp.dpy, s->surface, buffer);
1123 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1126 EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval)
1130 const egl_display_ptr dp = validate_display(dpy);
1131 if (!dp) return EGL_FALSE;
1133 EGLBoolean res = EGL_TRUE;
1134 egl_connection_t* const cnx = &gEGLImpl;
1135 if (cnx->dso && cnx->egl.eglSwapInterval) {
1136 res = cnx->egl.eglSwapInterval(dp->disp.dpy, interval);
1143 // ----------------------------------------------------------------------------
1145 // ----------------------------------------------------------------------------
1147 EGLBoolean eglWaitClient(void)
1151 egl_connection_t* const cnx = &gEGLImpl;
1153 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
1156 if (cnx->egl.eglWaitClient) {
1157 res = cnx->egl.eglWaitClient();
1159 res = cnx->egl.eglWaitGL();
1164 EGLBoolean eglBindAPI(EGLenum api)
1168 if (egl_init_drivers() == EGL_FALSE) {
1169 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1172 // bind this API on all EGLs
1173 EGLBoolean res = EGL_TRUE;
1174 egl_connection_t* const cnx = &gEGLImpl;
1175 if (cnx->dso && cnx->egl.eglBindAPI) {
1176 res = cnx->egl.eglBindAPI(api);
1181 EGLenum eglQueryAPI(void)
1185 if (egl_init_drivers() == EGL_FALSE) {
1186 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1189 egl_connection_t* const cnx = &gEGLImpl;
1190 if (cnx->dso && cnx->egl.eglQueryAPI) {
1191 return cnx->egl.eglQueryAPI();
1194 // or, it can only be OpenGL ES
1195 return EGL_OPENGL_ES_API;
1198 EGLBoolean eglReleaseThread(void)
1203 if (getEGLDebugLevel() > 0)
1204 GLTrace_eglReleaseThread();
1207 // If there is context bound to the thread, release it
1208 egl_display_t::loseCurrent(get_context(getContext()));
1210 egl_connection_t* const cnx = &gEGLImpl;
1211 if (cnx->dso && cnx->egl.eglReleaseThread) {
1212 cnx->egl.eglReleaseThread();
1214 egl_tls_t::clearTLS();
1218 EGLSurface eglCreatePbufferFromClientBuffer(
1219 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer,
1220 EGLConfig config, const EGLint *attrib_list)
1224 egl_connection_t* cnx = NULL;
1225 const egl_display_ptr dp = validate_display_connection(dpy, cnx);
1226 if (!dp) return EGL_FALSE;
1227 if (cnx->egl.eglCreatePbufferFromClientBuffer) {
1228 return cnx->egl.eglCreatePbufferFromClientBuffer(
1229 dp->disp.dpy, buftype, buffer, config, attrib_list);
1231 return setError(EGL_BAD_CONFIG, EGL_NO_SURFACE);
1234 // ----------------------------------------------------------------------------
1235 // EGL_EGLEXT_VERSION 3
1236 // ----------------------------------------------------------------------------
1238 EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface,
1239 const EGLint *attrib_list)
1243 const egl_display_ptr dp = validate_display(dpy);
1244 if (!dp) return EGL_FALSE;
1246 SurfaceRef _s(dp.get(), surface);
1248 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1250 egl_surface_t const * const s = get_surface(surface);
1251 if (s->cnx->egl.eglLockSurfaceKHR) {
1252 return s->cnx->egl.eglLockSurfaceKHR(
1253 dp->disp.dpy, s->surface, attrib_list);
1255 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1258 EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface)
1262 const egl_display_ptr dp = validate_display(dpy);
1263 if (!dp) return EGL_FALSE;
1265 SurfaceRef _s(dp.get(), surface);
1267 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1269 egl_surface_t const * const s = get_surface(surface);
1270 if (s->cnx->egl.eglUnlockSurfaceKHR) {
1271 return s->cnx->egl.eglUnlockSurfaceKHR(dp->disp.dpy, s->surface);
1273 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1276 EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
1277 EGLClientBuffer buffer, const EGLint *attrib_list)
1281 const egl_display_ptr dp = validate_display(dpy);
1282 if (!dp) return EGL_NO_IMAGE_KHR;
1284 ContextRef _c(dp.get(), ctx);
1285 egl_context_t * const c = _c.get();
1287 EGLImageKHR result = EGL_NO_IMAGE_KHR;
1288 egl_connection_t* const cnx = &gEGLImpl;
1289 if (cnx->dso && cnx->egl.eglCreateImageKHR) {
1290 result = cnx->egl.eglCreateImageKHR(
1292 c ? c->context : EGL_NO_CONTEXT,
1293 target, buffer, attrib_list);
1298 EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img)
1302 const egl_display_ptr dp = validate_display(dpy);
1303 if (!dp) return EGL_FALSE;
1305 EGLBoolean result = EGL_FALSE;
1306 egl_connection_t* const cnx = &gEGLImpl;
1307 if (cnx->dso && cnx->egl.eglDestroyImageKHR) {
1308 result = cnx->egl.eglDestroyImageKHR(dp->disp.dpy, img);
1313 // ----------------------------------------------------------------------------
1314 // EGL_EGLEXT_VERSION 5
1315 // ----------------------------------------------------------------------------
1318 EGLSyncKHR eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list)
1322 const egl_display_ptr dp = validate_display(dpy);
1323 if (!dp) return EGL_NO_SYNC_KHR;
1325 EGLSyncKHR result = EGL_NO_SYNC_KHR;
1326 egl_connection_t* const cnx = &gEGLImpl;
1327 if (cnx->dso && cnx->egl.eglCreateSyncKHR) {
1328 result = cnx->egl.eglCreateSyncKHR(dp->disp.dpy, type, attrib_list);
1333 EGLBoolean eglDestroySyncKHR(EGLDisplay dpy, EGLSyncKHR sync)
1337 const egl_display_ptr dp = validate_display(dpy);
1338 if (!dp) return EGL_FALSE;
1340 EGLBoolean result = EGL_FALSE;
1341 egl_connection_t* const cnx = &gEGLImpl;
1342 if (cnx->dso && cnx->egl.eglDestroySyncKHR) {
1343 result = cnx->egl.eglDestroySyncKHR(dp->disp.dpy, sync);
1348 EGLBoolean eglSignalSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLenum mode) {
1351 const egl_display_ptr dp = validate_display(dpy);
1352 if (!dp) return EGL_FALSE;
1354 EGLBoolean result = EGL_FALSE;
1355 egl_connection_t* const cnx = &gEGLImpl;
1356 if (cnx->dso && cnx->egl.eglSignalSyncKHR) {
1357 result = cnx->egl.eglSignalSyncKHR(
1358 dp->disp.dpy, sync, mode);
1363 EGLint eglClientWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync,
1364 EGLint flags, EGLTimeKHR timeout)
1368 const egl_display_ptr dp = validate_display(dpy);
1369 if (!dp) return EGL_FALSE;
1371 EGLBoolean result = EGL_FALSE;
1372 egl_connection_t* const cnx = &gEGLImpl;
1373 if (cnx->dso && cnx->egl.eglClientWaitSyncKHR) {
1374 result = cnx->egl.eglClientWaitSyncKHR(
1375 dp->disp.dpy, sync, flags, timeout);
1380 EGLBoolean eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync,
1381 EGLint attribute, EGLint *value)
1385 const egl_display_ptr dp = validate_display(dpy);
1386 if (!dp) return EGL_FALSE;
1388 EGLBoolean result = EGL_FALSE;
1389 egl_connection_t* const cnx = &gEGLImpl;
1390 if (cnx->dso && cnx->egl.eglGetSyncAttribKHR) {
1391 result = cnx->egl.eglGetSyncAttribKHR(
1392 dp->disp.dpy, sync, attribute, value);
1397 // ----------------------------------------------------------------------------
1398 // EGL_EGLEXT_VERSION 15
1399 // ----------------------------------------------------------------------------
1401 EGLint eglWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags) {
1403 const egl_display_ptr dp = validate_display(dpy);
1404 if (!dp) return EGL_FALSE;
1405 EGLint result = EGL_FALSE;
1406 egl_connection_t* const cnx = &gEGLImpl;
1407 if (cnx->dso && cnx->egl.eglWaitSyncKHR) {
1408 result = cnx->egl.eglWaitSyncKHR(dp->disp.dpy, sync, flags);
1413 // ----------------------------------------------------------------------------
1414 // ANDROID extensions
1415 // ----------------------------------------------------------------------------
1417 EGLint eglDupNativeFenceFDANDROID(EGLDisplay dpy, EGLSyncKHR sync)
1421 const egl_display_ptr dp = validate_display(dpy);
1422 if (!dp) return EGL_NO_NATIVE_FENCE_FD_ANDROID;
1424 EGLint result = EGL_NO_NATIVE_FENCE_FD_ANDROID;
1425 egl_connection_t* const cnx = &gEGLImpl;
1426 if (cnx->dso && cnx->egl.eglDupNativeFenceFDANDROID) {
1427 result = cnx->egl.eglDupNativeFenceFDANDROID(dp->disp.dpy, sync);
1432 EGLBoolean eglPresentationTimeANDROID(EGLDisplay dpy, EGLSurface surface,
1433 EGLnsecsANDROID time)
1437 const egl_display_ptr dp = validate_display(dpy);
1442 SurfaceRef _s(dp.get(), surface);
1444 setError(EGL_BAD_SURFACE, EGL_FALSE);
1448 egl_surface_t const * const s = get_surface(surface);
1449 native_window_set_buffers_timestamp(s->win.get(), time);
1454 // ----------------------------------------------------------------------------
1455 // NVIDIA extensions
1456 // ----------------------------------------------------------------------------
1457 EGLuint64NV eglGetSystemTimeFrequencyNV()
1461 if (egl_init_drivers() == EGL_FALSE) {
1462 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1465 EGLuint64NV ret = 0;
1466 egl_connection_t* const cnx = &gEGLImpl;
1468 if (cnx->dso && cnx->egl.eglGetSystemTimeFrequencyNV) {
1469 return cnx->egl.eglGetSystemTimeFrequencyNV();
1472 return setErrorQuiet(EGL_BAD_DISPLAY, 0);
1475 EGLuint64NV eglGetSystemTimeNV()
1479 if (egl_init_drivers() == EGL_FALSE) {
1480 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1483 EGLuint64NV ret = 0;
1484 egl_connection_t* const cnx = &gEGLImpl;
1486 if (cnx->dso && cnx->egl.eglGetSystemTimeNV) {
1487 return cnx->egl.eglGetSystemTimeNV();
1490 return setErrorQuiet(EGL_BAD_DISPLAY, 0);