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
23 #include <hardware/gralloc.h>
24 #include <system/window.h>
27 #include <EGL/eglext.h>
29 #include <cutils/log.h>
30 #include <cutils/atomic.h>
31 #include <cutils/compiler.h>
32 #include <cutils/properties.h>
33 #include <cutils/memory.h>
35 #include <utils/KeyedVector.h>
36 #include <utils/SortedVector.h>
37 #include <utils/String8.h>
38 #include <utils/Trace.h>
40 #include "../egl_impl.h"
41 #include "../glestrace.h"
44 #include "egl_display.h"
45 #include "egl_object.h"
49 using namespace android;
51 // ----------------------------------------------------------------------------
55 struct extention_map_t {
57 __eglMustCastToProperFunctionPointerType address;
61 * This is the list of EGL extensions exposed to applications,
62 * some of them are mandatory because used by the ANDROID system.
64 * Mandatory extensions are required per the CDD and not explicitly
65 * checked during EGL initialization. the system *assumes* these extensions
66 * are present. the system may not function properly if some mandatory
67 * extensions are missing.
69 * NOTE: gExtensionString MUST have a single space as the last character.
71 extern char const * const gExtensionString =
72 "EGL_KHR_image " // mandatory
73 "EGL_KHR_image_base " // mandatory
74 "EGL_KHR_image_pixmap "
75 "EGL_KHR_lock_surface "
76 "EGL_KHR_gl_texture_2D_image "
77 "EGL_KHR_gl_texture_cubemap_image "
78 "EGL_KHR_gl_renderbuffer_image "
79 "EGL_KHR_reusable_sync "
81 "EGL_KHR_create_context "
82 "EGL_EXT_create_context_robustness "
84 "EGL_ANDROID_image_native_buffer " // mandatory
85 "EGL_KHR_wait_sync " // strongly recommended
86 "EGL_ANDROID_presentation_time "
89 // extensions not exposed to applications but used by the ANDROID system
90 // "EGL_ANDROID_blob_cache " // strongly recommended
91 // "EGL_IMG_hibernate_process " // optional
92 // "EGL_ANDROID_native_fence_sync " // strongly recommended
93 // "EGL_ANDROID_framebuffer_target " // mandatory for HWC 1.1
94 // "EGL_ANDROID_recordable " // mandatory
98 * EGL Extensions entry-points exposed to 3rd party applications
99 * (keep in sync with gExtensionString above)
102 static const extention_map_t sExtensionMap[] = {
103 // EGL_KHR_lock_surface
104 { "eglLockSurfaceKHR",
105 (__eglMustCastToProperFunctionPointerType)&eglLockSurfaceKHR },
106 { "eglUnlockSurfaceKHR",
107 (__eglMustCastToProperFunctionPointerType)&eglUnlockSurfaceKHR },
109 // EGL_KHR_image, EGL_KHR_image_base
110 { "eglCreateImageKHR",
111 (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR },
112 { "eglDestroyImageKHR",
113 (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR },
115 // EGL_KHR_reusable_sync, EGL_KHR_fence_sync
116 { "eglCreateSyncKHR",
117 (__eglMustCastToProperFunctionPointerType)&eglCreateSyncKHR },
118 { "eglDestroySyncKHR",
119 (__eglMustCastToProperFunctionPointerType)&eglDestroySyncKHR },
120 { "eglClientWaitSyncKHR",
121 (__eglMustCastToProperFunctionPointerType)&eglClientWaitSyncKHR },
122 { "eglSignalSyncKHR",
123 (__eglMustCastToProperFunctionPointerType)&eglSignalSyncKHR },
124 { "eglGetSyncAttribKHR",
125 (__eglMustCastToProperFunctionPointerType)&eglGetSyncAttribKHR },
127 // EGL_NV_system_time
128 { "eglGetSystemTimeFrequencyNV",
129 (__eglMustCastToProperFunctionPointerType)&eglGetSystemTimeFrequencyNV },
130 { "eglGetSystemTimeNV",
131 (__eglMustCastToProperFunctionPointerType)&eglGetSystemTimeNV },
135 (__eglMustCastToProperFunctionPointerType)&eglWaitSyncKHR },
137 // EGL_ANDROID_presentation_time
138 { "eglPresentationTimeANDROID",
139 (__eglMustCastToProperFunctionPointerType)&eglPresentationTimeANDROID },
143 * These extensions entry-points should not be exposed to applications.
144 * They're used internally by the Android EGL layer.
146 #define FILTER_EXTENSIONS(procname) \
147 (!strcmp((procname), "eglSetBlobCacheFuncsANDROID") || \
148 !strcmp((procname), "eglHibernateProcessIMG") || \
149 !strcmp((procname), "eglAwakenProcessIMG") || \
150 !strcmp((procname), "eglDupNativeFenceFDANDROID"))
154 // accesses protected by sExtensionMapMutex
155 static DefaultKeyedVector<String8, __eglMustCastToProperFunctionPointerType> sGLExtentionMap;
156 static int sGLExtentionSlot = 0;
157 static pthread_mutex_t sExtensionMapMutex = PTHREAD_MUTEX_INITIALIZER;
159 static void(*findProcAddress(const char* name,
160 const extention_map_t* map, size_t n))() {
161 for (uint32_t i=0 ; i<n ; i++) {
162 if (!strcmp(name, map[i].name)) {
163 return map[i].address;
169 // ----------------------------------------------------------------------------
171 extern void setGLHooksThreadSpecific(gl_hooks_t const *value);
172 extern EGLBoolean egl_init_drivers();
173 extern const __eglMustCastToProperFunctionPointerType gExtensionForwarders[MAX_NUMBER_OF_GL_EXTENSIONS];
174 extern int getEGLDebugLevel();
175 extern void setEGLDebugLevel(int level);
176 extern gl_hooks_t gHooksTrace;
178 } // namespace android;
181 // ----------------------------------------------------------------------------
183 static inline void clearError() { egl_tls_t::clearError(); }
184 static inline EGLContext getContext() { return egl_tls_t::getContext(); }
186 // ----------------------------------------------------------------------------
188 EGLDisplay eglGetDisplay(EGLNativeDisplayType display)
192 uint32_t index = uint32_t(display);
193 if (index >= NUM_DISPLAYS) {
194 return setError(EGL_BAD_PARAMETER, EGL_NO_DISPLAY);
197 if (egl_init_drivers() == EGL_FALSE) {
198 return setError(EGL_BAD_PARAMETER, EGL_NO_DISPLAY);
201 EGLDisplay dpy = egl_display_t::getFromNativeDisplay(display);
205 // ----------------------------------------------------------------------------
207 // ----------------------------------------------------------------------------
209 EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
213 egl_display_ptr dp = get_display(dpy);
214 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
216 EGLBoolean res = dp->initialize(major, minor);
221 EGLBoolean eglTerminate(EGLDisplay dpy)
223 // NOTE: don't unload the drivers b/c some APIs can be called
224 // after eglTerminate() has been called. eglTerminate() only
225 // terminates an EGLDisplay, not a EGL itself.
229 egl_display_ptr dp = get_display(dpy);
230 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
232 EGLBoolean res = dp->terminate();
237 // ----------------------------------------------------------------------------
239 // ----------------------------------------------------------------------------
241 EGLBoolean eglGetConfigs( EGLDisplay dpy,
243 EGLint config_size, EGLint *num_config)
247 const egl_display_ptr dp = validate_display(dpy);
248 if (!dp) return EGL_FALSE;
251 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
254 EGLBoolean res = EGL_FALSE;
257 egl_connection_t* const cnx = &gEGLImpl;
259 res = cnx->egl.eglGetConfigs(
260 dp->disp.dpy, configs, config_size, num_config);
266 EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list,
267 EGLConfig *configs, EGLint config_size,
272 const egl_display_ptr dp = validate_display(dpy);
273 if (!dp) return EGL_FALSE;
276 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
279 EGLBoolean res = EGL_FALSE;
282 egl_connection_t* const cnx = &gEGLImpl;
285 char value[PROPERTY_VALUE_MAX];
286 property_get("debug.egl.force_msaa", value, "false");
288 if (!strcmp(value, "true")) {
289 size_t attribCount = 0;
290 EGLint attrib = attrib_list[0];
292 // Only enable MSAA if the context is OpenGL ES 2.0 and
293 // if no caveat is requested
294 const EGLint *attribRendererable = NULL;
295 const EGLint *attribCaveat = NULL;
297 // Count the number of attributes and look for
298 // EGL_RENDERABLE_TYPE and EGL_CONFIG_CAVEAT
299 while (attrib != EGL_NONE) {
300 attrib = attrib_list[attribCount];
302 case EGL_RENDERABLE_TYPE:
303 attribRendererable = &attrib_list[attribCount];
305 case EGL_CONFIG_CAVEAT:
306 attribCaveat = &attrib_list[attribCount];
312 if (attribRendererable && attribRendererable[1] == EGL_OPENGL_ES2_BIT &&
313 (!attribCaveat || attribCaveat[1] != EGL_NONE)) {
315 // Insert 2 extra attributes to force-enable MSAA 4x
316 EGLint aaAttribs[attribCount + 4];
317 aaAttribs[0] = EGL_SAMPLE_BUFFERS;
319 aaAttribs[2] = EGL_SAMPLES;
322 memcpy(&aaAttribs[4], attrib_list, attribCount * sizeof(EGLint));
325 EGLBoolean resAA = cnx->egl.eglChooseConfig(
326 dp->disp.dpy, aaAttribs, configs, config_size, &numConfigAA);
328 if (resAA == EGL_TRUE && numConfigAA > 0) {
329 ALOGD("Enabling MSAA 4x");
330 *num_config = numConfigAA;
337 res = cnx->egl.eglChooseConfig(
338 dp->disp.dpy, attrib_list, configs, config_size, num_config);
343 EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,
344 EGLint attribute, EGLint *value)
348 egl_connection_t* cnx = NULL;
349 const egl_display_ptr dp = validate_display_connection(dpy, cnx);
350 if (!dp) return EGL_FALSE;
352 return cnx->egl.eglGetConfigAttrib(
353 dp->disp.dpy, config, attribute, value);
356 // ----------------------------------------------------------------------------
358 // ----------------------------------------------------------------------------
360 EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config,
361 NativeWindowType window,
362 const EGLint *attrib_list)
366 egl_connection_t* cnx = NULL;
367 egl_display_ptr dp = validate_display_connection(dpy, cnx);
369 EGLDisplay iDpy = dp->disp.dpy;
372 if (native_window_api_connect(window, NATIVE_WINDOW_API_EGL) != OK) {
373 ALOGE("EGLNativeWindowType %p already connected to another API",
375 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
378 // set the native window's buffers format to match this config
379 if (cnx->egl.eglGetConfigAttrib(iDpy,
380 config, EGL_NATIVE_VISUAL_ID, &format)) {
382 int err = native_window_set_buffers_format(window, format);
384 ALOGE("error setting native window pixel format: %s (%d)",
385 strerror(-err), err);
386 native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL);
387 return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
392 // the EGL spec requires that a new EGLSurface default to swap interval
393 // 1, so explicitly set that on the window here.
394 ANativeWindow* anw = reinterpret_cast<ANativeWindow*>(window);
395 anw->setSwapInterval(anw, 1);
397 EGLSurface surface = cnx->egl.eglCreateWindowSurface(
398 iDpy, config, window, attrib_list);
399 if (surface != EGL_NO_SURFACE) {
400 egl_surface_t* s = new egl_surface_t(dp.get(), config, window,
405 // EGLSurface creation failed
406 native_window_set_buffers_format(window, 0);
407 native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL);
409 return EGL_NO_SURFACE;
412 EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config,
413 NativePixmapType pixmap,
414 const EGLint *attrib_list)
418 egl_connection_t* cnx = NULL;
419 egl_display_ptr dp = validate_display_connection(dpy, cnx);
421 EGLSurface surface = cnx->egl.eglCreatePixmapSurface(
422 dp->disp.dpy, config, pixmap, attrib_list);
423 if (surface != EGL_NO_SURFACE) {
424 egl_surface_t* s = new egl_surface_t(dp.get(), config, NULL,
429 return EGL_NO_SURFACE;
432 EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config,
433 const EGLint *attrib_list)
437 egl_connection_t* cnx = NULL;
438 egl_display_ptr dp = validate_display_connection(dpy, cnx);
440 EGLSurface surface = cnx->egl.eglCreatePbufferSurface(
441 dp->disp.dpy, config, attrib_list);
442 if (surface != EGL_NO_SURFACE) {
443 egl_surface_t* s = new egl_surface_t(dp.get(), config, NULL,
448 return EGL_NO_SURFACE;
451 EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface surface)
455 const egl_display_ptr dp = validate_display(dpy);
456 if (!dp) return EGL_FALSE;
458 SurfaceRef _s(dp.get(), surface);
460 return setError(EGL_BAD_SURFACE, EGL_FALSE);
462 egl_surface_t * const s = get_surface(surface);
463 EGLBoolean result = s->cnx->egl.eglDestroySurface(dp->disp.dpy, s->surface);
464 if (result == EGL_TRUE) {
470 EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface surface,
471 EGLint attribute, EGLint *value)
475 const egl_display_ptr dp = validate_display(dpy);
476 if (!dp) return EGL_FALSE;
478 SurfaceRef _s(dp.get(), surface);
480 return setError(EGL_BAD_SURFACE, EGL_FALSE);
482 egl_surface_t const * const s = get_surface(surface);
483 return s->cnx->egl.eglQuerySurface(
484 dp->disp.dpy, s->surface, attribute, value);
487 void EGLAPI eglBeginFrame(EGLDisplay dpy, EGLSurface surface) {
491 const egl_display_ptr dp = validate_display(dpy);
496 SurfaceRef _s(dp.get(), surface);
498 setError(EGL_BAD_SURFACE, EGL_FALSE);
502 int64_t timestamp = systemTime(SYSTEM_TIME_MONOTONIC);
504 egl_surface_t const * const s = get_surface(surface);
505 native_window_set_buffers_timestamp(s->win.get(), timestamp);
508 // ----------------------------------------------------------------------------
510 // ----------------------------------------------------------------------------
512 EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config,
513 EGLContext share_list, const EGLint *attrib_list)
517 egl_connection_t* cnx = NULL;
518 const egl_display_ptr dp = validate_display_connection(dpy, cnx);
520 if (share_list != EGL_NO_CONTEXT) {
521 if (!ContextRef(dp.get(), share_list).get()) {
522 return setError(EGL_BAD_CONTEXT, EGL_NO_CONTEXT);
524 egl_context_t* const c = get_context(share_list);
525 share_list = c->context;
527 EGLContext context = cnx->egl.eglCreateContext(
528 dp->disp.dpy, config, share_list, attrib_list);
529 if (context != EGL_NO_CONTEXT) {
530 // figure out if it's a GLESv1 or GLESv2
533 while (*attrib_list != EGL_NONE) {
534 GLint attr = *attrib_list++;
535 GLint value = *attrib_list++;
536 if (attr == EGL_CONTEXT_CLIENT_VERSION) {
538 version = egl_connection_t::GLESv1_INDEX;
539 } else if (value == 2 || value == 3) {
540 version = egl_connection_t::GLESv2_INDEX;
545 egl_context_t* c = new egl_context_t(dpy, context, config, cnx,
548 if (getEGLDebugLevel() > 0)
549 GLTrace_eglCreateContext(version, c);
553 EGLint error = eglGetError();
554 ALOGE_IF(error == EGL_SUCCESS,
555 "eglCreateContext(%p, %p, %p, %p) returned EGL_NO_CONTEXT "
557 dpy, config, share_list, attrib_list);
560 return EGL_NO_CONTEXT;
563 EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
567 const egl_display_ptr dp = validate_display(dpy);
571 ContextRef _c(dp.get(), ctx);
573 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
575 egl_context_t * const c = get_context(ctx);
576 EGLBoolean result = c->cnx->egl.eglDestroyContext(dp->disp.dpy, c->context);
577 if (result == EGL_TRUE) {
583 EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw,
584 EGLSurface read, EGLContext ctx)
588 egl_display_ptr dp = validate_display(dpy);
589 if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
591 // If ctx is not EGL_NO_CONTEXT, read is not EGL_NO_SURFACE, or draw is not
592 // EGL_NO_SURFACE, then an EGL_NOT_INITIALIZED error is generated if dpy is
593 // a valid but uninitialized display.
594 if ( (ctx != EGL_NO_CONTEXT) || (read != EGL_NO_SURFACE) ||
595 (draw != EGL_NO_SURFACE) ) {
596 if (!dp->isReady()) return setError(EGL_NOT_INITIALIZED, EGL_FALSE);
599 // get a reference to the object passed in
600 ContextRef _c(dp.get(), ctx);
601 SurfaceRef _d(dp.get(), draw);
602 SurfaceRef _r(dp.get(), read);
604 // validate the context (if not EGL_NO_CONTEXT)
605 if ((ctx != EGL_NO_CONTEXT) && !_c.get()) {
606 // EGL_NO_CONTEXT is valid
607 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
610 // these are the underlying implementation's object
611 EGLContext impl_ctx = EGL_NO_CONTEXT;
612 EGLSurface impl_draw = EGL_NO_SURFACE;
613 EGLSurface impl_read = EGL_NO_SURFACE;
615 // these are our objects structs passed in
616 egl_context_t * c = NULL;
617 egl_surface_t const * d = NULL;
618 egl_surface_t const * r = NULL;
620 // these are the current objects structs
621 egl_context_t * cur_c = get_context(getContext());
623 if (ctx != EGL_NO_CONTEXT) {
624 c = get_context(ctx);
625 impl_ctx = c->context;
627 // no context given, use the implementation of the current context
628 if (draw != EGL_NO_SURFACE || read != EGL_NO_SURFACE) {
629 // calling eglMakeCurrent( ..., !=0, !=0, EGL_NO_CONTEXT);
630 return setError(EGL_BAD_MATCH, EGL_FALSE);
633 // no current context
634 // not an error, there is just no current context.
639 // retrieve the underlying implementation's draw EGLSurface
640 if (draw != EGL_NO_SURFACE) {
641 if (!_d.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
642 d = get_surface(draw);
643 impl_draw = d->surface;
646 // retrieve the underlying implementation's read EGLSurface
647 if (read != EGL_NO_SURFACE) {
648 if (!_r.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
649 r = get_surface(read);
650 impl_read = r->surface;
654 EGLBoolean result = dp->makeCurrent(c, cur_c,
656 impl_draw, impl_read, impl_ctx);
658 if (result == EGL_TRUE) {
660 setGLHooksThreadSpecific(c->cnx->hooks[c->version]);
661 egl_tls_t::setContext(ctx);
663 if (getEGLDebugLevel() > 0)
664 GLTrace_eglMakeCurrent(c->version, c->cnx->hooks[c->version], ctx);
670 setGLHooksThreadSpecific(&gHooksNoContext);
671 egl_tls_t::setContext(EGL_NO_CONTEXT);
674 // this will ALOGE the error
675 result = setError(c->cnx->egl.eglGetError(), EGL_FALSE);
681 EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx,
682 EGLint attribute, EGLint *value)
686 const egl_display_ptr dp = validate_display(dpy);
687 if (!dp) return EGL_FALSE;
689 ContextRef _c(dp.get(), ctx);
690 if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
692 egl_context_t * const c = get_context(ctx);
693 return c->cnx->egl.eglQueryContext(
694 dp->disp.dpy, c->context, attribute, value);
698 EGLContext eglGetCurrentContext(void)
700 // could be called before eglInitialize(), but we wouldn't have a context
701 // then, and this function would correctly return EGL_NO_CONTEXT.
705 EGLContext ctx = getContext();
709 EGLSurface eglGetCurrentSurface(EGLint readdraw)
711 // could be called before eglInitialize(), but we wouldn't have a context
712 // then, and this function would correctly return EGL_NO_SURFACE.
716 EGLContext ctx = getContext();
718 egl_context_t const * const c = get_context(ctx);
719 if (!c) return setError(EGL_BAD_CONTEXT, EGL_NO_SURFACE);
721 case EGL_READ: return c->read;
722 case EGL_DRAW: return c->draw;
723 default: return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
726 return EGL_NO_SURFACE;
729 EGLDisplay eglGetCurrentDisplay(void)
731 // could be called before eglInitialize(), but we wouldn't have a context
732 // then, and this function would correctly return EGL_NO_DISPLAY.
736 EGLContext ctx = getContext();
738 egl_context_t const * const c = get_context(ctx);
739 if (!c) return setError(EGL_BAD_CONTEXT, EGL_NO_SURFACE);
742 return EGL_NO_DISPLAY;
745 EGLBoolean eglWaitGL(void)
749 egl_connection_t* const cnx = &gEGLImpl;
751 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
753 return cnx->egl.eglWaitGL();
756 EGLBoolean eglWaitNative(EGLint engine)
760 egl_connection_t* const cnx = &gEGLImpl;
762 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
764 return cnx->egl.eglWaitNative(engine);
767 EGLint eglGetError(void)
769 EGLint err = EGL_SUCCESS;
770 egl_connection_t* const cnx = &gEGLImpl;
772 err = cnx->egl.eglGetError();
774 if (err == EGL_SUCCESS) {
775 err = egl_tls_t::getError();
780 __eglMustCastToProperFunctionPointerType eglGetProcAddress(const char *procname)
782 // eglGetProcAddress() could be the very first function called
783 // in which case we must make sure we've initialized ourselves, this
784 // happens the first time egl_get_display() is called.
788 if (egl_init_drivers() == EGL_FALSE) {
789 setError(EGL_BAD_PARAMETER, NULL);
793 if (FILTER_EXTENSIONS(procname)) {
797 __eglMustCastToProperFunctionPointerType addr;
798 addr = findProcAddress(procname, sExtensionMap, NELEM(sExtensionMap));
799 if (addr) return addr;
802 // this protects accesses to sGLExtentionMap and sGLExtentionSlot
803 pthread_mutex_lock(&sExtensionMapMutex);
806 * Since eglGetProcAddress() is not associated to anything, it needs
807 * to return a function pointer that "works" regardless of what
808 * the current context is.
810 * For this reason, we return a "forwarder", a small stub that takes
811 * care of calling the function associated with the context
814 * We first look for extensions we've already resolved, if we're seeing
815 * this extension for the first time, we go through all our
816 * implementations and call eglGetProcAddress() and record the
817 * result in the appropriate implementation hooks and return the
818 * address of the forwarder corresponding to that hook set.
822 const String8 name(procname);
823 addr = sGLExtentionMap.valueFor(name);
824 const int slot = sGLExtentionSlot;
826 ALOGE_IF(slot >= MAX_NUMBER_OF_GL_EXTENSIONS,
827 "no more slots for eglGetProcAddress(\"%s\")",
831 gl_hooks_t *debugHooks = GLTrace_getGLHooks();
834 if (!addr && (slot < MAX_NUMBER_OF_GL_EXTENSIONS)) {
837 egl_connection_t* const cnx = &gEGLImpl;
838 if (cnx->dso && cnx->egl.eglGetProcAddress) {
839 // Extensions are independent of the bound context
841 cnx->hooks[egl_connection_t::GLESv1_INDEX]->ext.extensions[slot] =
842 cnx->hooks[egl_connection_t::GLESv2_INDEX]->ext.extensions[slot] =
844 debugHooks->ext.extensions[slot] =
845 gHooksTrace.ext.extensions[slot] =
847 cnx->egl.eglGetProcAddress(procname);
848 if (addr) found = true;
852 addr = gExtensionForwarders[slot];
853 sGLExtentionMap.add(name, addr);
858 pthread_mutex_unlock(&sExtensionMapMutex);
862 class FrameCompletionThread : public Thread {
865 static void queueSync(EGLSyncKHR sync) {
866 static sp<FrameCompletionThread> thread(new FrameCompletionThread);
867 static bool running = false;
869 thread->run("GPUFrameCompletion");
873 Mutex::Autolock lock(thread->mMutex);
874 ScopedTrace st(ATRACE_TAG, String8::format("kicked off frame %d",
875 thread->mFramesQueued).string());
876 thread->mQueue.push_back(sync);
877 thread->mCondition.signal();
878 thread->mFramesQueued++;
879 ATRACE_INT("GPU Frames Outstanding", thread->mQueue.size());
884 FrameCompletionThread() : mFramesQueued(0), mFramesCompleted(0) {}
886 virtual bool threadLoop() {
890 Mutex::Autolock lock(mMutex);
891 while (mQueue.isEmpty()) {
892 mCondition.wait(mMutex);
895 frameNum = mFramesCompleted;
897 EGLDisplay dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
899 ScopedTrace st(ATRACE_TAG, String8::format("waiting for frame %d",
901 EGLint result = eglClientWaitSyncKHR(dpy, sync, 0, EGL_FOREVER_KHR);
902 if (result == EGL_FALSE) {
903 ALOGE("FrameCompletion: error waiting for fence: %#x", eglGetError());
904 } else if (result == EGL_TIMEOUT_EXPIRED_KHR) {
905 ALOGE("FrameCompletion: timeout waiting for fence");
907 eglDestroySyncKHR(dpy, sync);
910 Mutex::Autolock lock(mMutex);
913 ATRACE_INT("GPU Frames Outstanding", mQueue.size());
918 uint32_t mFramesQueued;
919 uint32_t mFramesCompleted;
920 Vector<EGLSyncKHR> mQueue;
921 Condition mCondition;
925 EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw)
930 const egl_display_ptr dp = validate_display(dpy);
931 if (!dp) return EGL_FALSE;
933 SurfaceRef _s(dp.get(), draw);
935 return setError(EGL_BAD_SURFACE, EGL_FALSE);
938 gl_hooks_t const *trace_hooks = getGLTraceThreadSpecific();
939 if (getEGLDebugLevel() > 0) {
940 if (trace_hooks == NULL) {
941 if (GLTrace_start() < 0) {
942 ALOGE("Disabling Tracer for OpenGL ES");
945 // switch over to the trace version of hooks
946 EGLContext ctx = egl_tls_t::getContext();
947 egl_context_t * const c = get_context(ctx);
949 setGLHooksThreadSpecific(c->cnx->hooks[c->version]);
950 GLTrace_eglMakeCurrent(c->version, c->cnx->hooks[c->version], ctx);
955 GLTrace_eglSwapBuffers(dpy, draw);
956 } else if (trace_hooks != NULL) {
957 // tracing is now disabled, so switch back to the non trace version
958 EGLContext ctx = egl_tls_t::getContext();
959 egl_context_t * const c = get_context(ctx);
960 if (c) setGLHooksThreadSpecific(c->cnx->hooks[c->version]);
965 egl_surface_t const * const s = get_surface(draw);
967 if (CC_UNLIKELY(dp->traceGpuCompletion)) {
968 EGLSyncKHR sync = eglCreateSyncKHR(dpy, EGL_SYNC_FENCE_KHR, NULL);
969 if (sync != EGL_NO_SYNC_KHR) {
970 FrameCompletionThread::queueSync(sync);
974 if (CC_UNLIKELY(dp->finishOnSwap)) {
976 egl_context_t * const c = get_context( egl_tls_t::getContext() );
978 // glReadPixels() ensures that the frame is complete
979 s->cnx->hooks[c->version]->gl.glReadPixels(0,0,1,1,
980 GL_RGBA,GL_UNSIGNED_BYTE,&pixel);
984 return s->cnx->egl.eglSwapBuffers(dp->disp.dpy, s->surface);
987 EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface,
988 NativePixmapType target)
992 const egl_display_ptr dp = validate_display(dpy);
993 if (!dp) return EGL_FALSE;
995 SurfaceRef _s(dp.get(), surface);
997 return setError(EGL_BAD_SURFACE, EGL_FALSE);
999 egl_surface_t const * const s = get_surface(surface);
1000 return s->cnx->egl.eglCopyBuffers(dp->disp.dpy, s->surface, target);
1003 const char* eglQueryString(EGLDisplay dpy, EGLint name)
1007 const egl_display_ptr dp = validate_display(dpy);
1008 if (!dp) return (const char *) NULL;
1012 return dp->getVendorString();
1014 return dp->getVersionString();
1015 case EGL_EXTENSIONS:
1016 return dp->getExtensionString();
1017 case EGL_CLIENT_APIS:
1018 return dp->getClientApiString();
1020 return setError(EGL_BAD_PARAMETER, (const char *)0);
1023 EGLAPI const char* eglQueryStringImplementationANDROID(EGLDisplay dpy, EGLint name)
1027 const egl_display_ptr dp = validate_display(dpy);
1028 if (!dp) return (const char *) NULL;
1032 return dp->disp.queryString.vendor;
1034 return dp->disp.queryString.version;
1035 case EGL_EXTENSIONS:
1036 return dp->disp.queryString.extensions;
1037 case EGL_CLIENT_APIS:
1038 return dp->disp.queryString.clientApi;
1040 return setError(EGL_BAD_PARAMETER, (const char *)0);
1043 // ----------------------------------------------------------------------------
1045 // ----------------------------------------------------------------------------
1047 EGLBoolean eglSurfaceAttrib(
1048 EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value)
1052 const egl_display_ptr dp = validate_display(dpy);
1053 if (!dp) return EGL_FALSE;
1055 SurfaceRef _s(dp.get(), surface);
1057 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1059 egl_surface_t const * const s = get_surface(surface);
1060 if (s->cnx->egl.eglSurfaceAttrib) {
1061 return s->cnx->egl.eglSurfaceAttrib(
1062 dp->disp.dpy, s->surface, attribute, value);
1064 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1067 EGLBoolean eglBindTexImage(
1068 EGLDisplay dpy, EGLSurface surface, EGLint buffer)
1072 const egl_display_ptr dp = validate_display(dpy);
1073 if (!dp) return EGL_FALSE;
1075 SurfaceRef _s(dp.get(), surface);
1077 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1079 egl_surface_t const * const s = get_surface(surface);
1080 if (s->cnx->egl.eglBindTexImage) {
1081 return s->cnx->egl.eglBindTexImage(
1082 dp->disp.dpy, s->surface, buffer);
1084 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1087 EGLBoolean eglReleaseTexImage(
1088 EGLDisplay dpy, EGLSurface surface, EGLint buffer)
1092 const egl_display_ptr dp = validate_display(dpy);
1093 if (!dp) return EGL_FALSE;
1095 SurfaceRef _s(dp.get(), surface);
1097 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1099 egl_surface_t const * const s = get_surface(surface);
1100 if (s->cnx->egl.eglReleaseTexImage) {
1101 return s->cnx->egl.eglReleaseTexImage(
1102 dp->disp.dpy, s->surface, buffer);
1104 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1107 EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval)
1111 const egl_display_ptr dp = validate_display(dpy);
1112 if (!dp) return EGL_FALSE;
1114 EGLBoolean res = EGL_TRUE;
1115 egl_connection_t* const cnx = &gEGLImpl;
1116 if (cnx->dso && cnx->egl.eglSwapInterval) {
1117 res = cnx->egl.eglSwapInterval(dp->disp.dpy, interval);
1124 // ----------------------------------------------------------------------------
1126 // ----------------------------------------------------------------------------
1128 EGLBoolean eglWaitClient(void)
1132 egl_connection_t* const cnx = &gEGLImpl;
1134 return setError(EGL_BAD_CONTEXT, EGL_FALSE);
1137 if (cnx->egl.eglWaitClient) {
1138 res = cnx->egl.eglWaitClient();
1140 res = cnx->egl.eglWaitGL();
1145 EGLBoolean eglBindAPI(EGLenum api)
1149 if (egl_init_drivers() == EGL_FALSE) {
1150 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1153 // bind this API on all EGLs
1154 EGLBoolean res = EGL_TRUE;
1155 egl_connection_t* const cnx = &gEGLImpl;
1156 if (cnx->dso && cnx->egl.eglBindAPI) {
1157 res = cnx->egl.eglBindAPI(api);
1162 EGLenum eglQueryAPI(void)
1166 if (egl_init_drivers() == EGL_FALSE) {
1167 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1170 egl_connection_t* const cnx = &gEGLImpl;
1171 if (cnx->dso && cnx->egl.eglQueryAPI) {
1172 return cnx->egl.eglQueryAPI();
1175 // or, it can only be OpenGL ES
1176 return EGL_OPENGL_ES_API;
1179 EGLBoolean eglReleaseThread(void)
1184 if (getEGLDebugLevel() > 0)
1185 GLTrace_eglReleaseThread();
1188 // If there is context bound to the thread, release it
1189 egl_display_t::loseCurrent(get_context(getContext()));
1191 egl_connection_t* const cnx = &gEGLImpl;
1192 if (cnx->dso && cnx->egl.eglReleaseThread) {
1193 cnx->egl.eglReleaseThread();
1195 egl_tls_t::clearTLS();
1199 EGLSurface eglCreatePbufferFromClientBuffer(
1200 EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer,
1201 EGLConfig config, const EGLint *attrib_list)
1205 egl_connection_t* cnx = NULL;
1206 const egl_display_ptr dp = validate_display_connection(dpy, cnx);
1207 if (!dp) return EGL_FALSE;
1208 if (cnx->egl.eglCreatePbufferFromClientBuffer) {
1209 return cnx->egl.eglCreatePbufferFromClientBuffer(
1210 dp->disp.dpy, buftype, buffer, config, attrib_list);
1212 return setError(EGL_BAD_CONFIG, EGL_NO_SURFACE);
1215 // ----------------------------------------------------------------------------
1216 // EGL_EGLEXT_VERSION 3
1217 // ----------------------------------------------------------------------------
1219 EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface,
1220 const EGLint *attrib_list)
1224 const egl_display_ptr dp = validate_display(dpy);
1225 if (!dp) return EGL_FALSE;
1227 SurfaceRef _s(dp.get(), surface);
1229 return setError(EGL_BAD_SURFACE, EGL_FALSE);
1231 egl_surface_t const * const s = get_surface(surface);
1232 if (s->cnx->egl.eglLockSurfaceKHR) {
1233 return s->cnx->egl.eglLockSurfaceKHR(
1234 dp->disp.dpy, s->surface, attrib_list);
1236 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1239 EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface)
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.eglUnlockSurfaceKHR) {
1252 return s->cnx->egl.eglUnlockSurfaceKHR(dp->disp.dpy, s->surface);
1254 return setError(EGL_BAD_DISPLAY, EGL_FALSE);
1257 EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
1258 EGLClientBuffer buffer, const EGLint *attrib_list)
1262 const egl_display_ptr dp = validate_display(dpy);
1263 if (!dp) return EGL_NO_IMAGE_KHR;
1265 ContextRef _c(dp.get(), ctx);
1266 egl_context_t * const c = _c.get();
1268 EGLImageKHR result = EGL_NO_IMAGE_KHR;
1269 egl_connection_t* const cnx = &gEGLImpl;
1270 if (cnx->dso && cnx->egl.eglCreateImageKHR) {
1271 result = cnx->egl.eglCreateImageKHR(
1273 c ? c->context : EGL_NO_CONTEXT,
1274 target, buffer, attrib_list);
1279 EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img)
1283 const egl_display_ptr dp = validate_display(dpy);
1284 if (!dp) return EGL_FALSE;
1286 EGLBoolean result = EGL_FALSE;
1287 egl_connection_t* const cnx = &gEGLImpl;
1288 if (cnx->dso && cnx->egl.eglDestroyImageKHR) {
1289 result = cnx->egl.eglDestroyImageKHR(dp->disp.dpy, img);
1294 // ----------------------------------------------------------------------------
1295 // EGL_EGLEXT_VERSION 5
1296 // ----------------------------------------------------------------------------
1299 EGLSyncKHR eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list)
1303 const egl_display_ptr dp = validate_display(dpy);
1304 if (!dp) return EGL_NO_SYNC_KHR;
1306 EGLSyncKHR result = EGL_NO_SYNC_KHR;
1307 egl_connection_t* const cnx = &gEGLImpl;
1308 if (cnx->dso && cnx->egl.eglCreateSyncKHR) {
1309 result = cnx->egl.eglCreateSyncKHR(dp->disp.dpy, type, attrib_list);
1314 EGLBoolean eglDestroySyncKHR(EGLDisplay dpy, EGLSyncKHR sync)
1318 const egl_display_ptr dp = validate_display(dpy);
1319 if (!dp) return EGL_FALSE;
1321 EGLBoolean result = EGL_FALSE;
1322 egl_connection_t* const cnx = &gEGLImpl;
1323 if (cnx->dso && cnx->egl.eglDestroySyncKHR) {
1324 result = cnx->egl.eglDestroySyncKHR(dp->disp.dpy, sync);
1329 EGLBoolean eglSignalSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLenum mode) {
1332 const egl_display_ptr dp = validate_display(dpy);
1333 if (!dp) return EGL_FALSE;
1335 EGLBoolean result = EGL_FALSE;
1336 egl_connection_t* const cnx = &gEGLImpl;
1337 if (cnx->dso && cnx->egl.eglSignalSyncKHR) {
1338 result = cnx->egl.eglSignalSyncKHR(
1339 dp->disp.dpy, sync, mode);
1344 EGLint eglClientWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync,
1345 EGLint flags, EGLTimeKHR timeout)
1349 const egl_display_ptr dp = validate_display(dpy);
1350 if (!dp) return EGL_FALSE;
1352 EGLBoolean result = EGL_FALSE;
1353 egl_connection_t* const cnx = &gEGLImpl;
1354 if (cnx->dso && cnx->egl.eglClientWaitSyncKHR) {
1355 result = cnx->egl.eglClientWaitSyncKHR(
1356 dp->disp.dpy, sync, flags, timeout);
1361 EGLBoolean eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync,
1362 EGLint attribute, EGLint *value)
1366 const egl_display_ptr dp = validate_display(dpy);
1367 if (!dp) return EGL_FALSE;
1369 EGLBoolean result = EGL_FALSE;
1370 egl_connection_t* const cnx = &gEGLImpl;
1371 if (cnx->dso && cnx->egl.eglGetSyncAttribKHR) {
1372 result = cnx->egl.eglGetSyncAttribKHR(
1373 dp->disp.dpy, sync, attribute, value);
1378 // ----------------------------------------------------------------------------
1379 // EGL_EGLEXT_VERSION 15
1380 // ----------------------------------------------------------------------------
1382 EGLint eglWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags) {
1384 const egl_display_ptr dp = validate_display(dpy);
1385 if (!dp) return EGL_FALSE;
1386 EGLint result = EGL_FALSE;
1387 egl_connection_t* const cnx = &gEGLImpl;
1388 if (cnx->dso && cnx->egl.eglWaitSyncKHR) {
1389 result = cnx->egl.eglWaitSyncKHR(dp->disp.dpy, sync, flags);
1394 // ----------------------------------------------------------------------------
1395 // ANDROID extensions
1396 // ----------------------------------------------------------------------------
1398 EGLint eglDupNativeFenceFDANDROID(EGLDisplay dpy, EGLSyncKHR sync)
1402 const egl_display_ptr dp = validate_display(dpy);
1403 if (!dp) return EGL_NO_NATIVE_FENCE_FD_ANDROID;
1405 EGLint result = EGL_NO_NATIVE_FENCE_FD_ANDROID;
1406 egl_connection_t* const cnx = &gEGLImpl;
1407 if (cnx->dso && cnx->egl.eglDupNativeFenceFDANDROID) {
1408 result = cnx->egl.eglDupNativeFenceFDANDROID(dp->disp.dpy, sync);
1413 EGLBoolean eglPresentationTimeANDROID(EGLDisplay dpy, EGLSurface surface,
1414 EGLnsecsANDROID time)
1418 const egl_display_ptr dp = validate_display(dpy);
1423 SurfaceRef _s(dp.get(), surface);
1425 setError(EGL_BAD_SURFACE, EGL_FALSE);
1429 egl_surface_t const * const s = get_surface(surface);
1430 native_window_set_buffers_timestamp(s->win.get(), time);
1435 // ----------------------------------------------------------------------------
1436 // NVIDIA extensions
1437 // ----------------------------------------------------------------------------
1438 EGLuint64NV eglGetSystemTimeFrequencyNV()
1442 if (egl_init_drivers() == EGL_FALSE) {
1443 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1446 EGLuint64NV ret = 0;
1447 egl_connection_t* const cnx = &gEGLImpl;
1449 if (cnx->dso && cnx->egl.eglGetSystemTimeFrequencyNV) {
1450 return cnx->egl.eglGetSystemTimeFrequencyNV();
1453 return setErrorQuiet(EGL_BAD_DISPLAY, 0);
1456 EGLuint64NV eglGetSystemTimeNV()
1460 if (egl_init_drivers() == EGL_FALSE) {
1461 return setError(EGL_BAD_PARAMETER, EGL_FALSE);
1464 EGLuint64NV ret = 0;
1465 egl_connection_t* const cnx = &gEGLImpl;
1467 if (cnx->dso && cnx->egl.eglGetSystemTimeNV) {
1468 return cnx->egl.eglGetSystemTimeNV();
1471 return setErrorQuiet(EGL_BAD_DISPLAY, 0);