/* ** Copyright 2007, The Android Open Source Project ** ** Licensed under the Apache License, Version 2.0 (the "License"); ** you may not use this file except in compliance with the License. ** You may obtain a copy of the License at ** ** http://www.apache.org/licenses/LICENSE-2.0 ** ** Unless required by applicable law or agreed to in writing, software ** distributed under the License is distributed on an "AS IS" BASIS, ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. ** See the License for the specific language governing permissions and ** limitations under the License. */ #define ATRACE_TAG ATRACE_TAG_GRAPHICS #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "../egl_impl.h" #include "../glestrace.h" #include "../hooks.h" #include "egl_display.h" #include "egl_object.h" #include "egl_tls.h" #include "egldefs.h" using namespace android; // This extension has not been ratified yet, so can't be shipped. // Implementation is incomplete and untested. #define ENABLE_EGL_KHR_GL_COLORSPACE 0 // ---------------------------------------------------------------------------- namespace android { struct extention_map_t { const char* name; __eglMustCastToProperFunctionPointerType address; }; /* * This is the list of EGL extensions exposed to applications. * * Some of them (gBuiltinExtensionString) are implemented entirely in this EGL * wrapper and are always available. * * The rest (gExtensionString) depend on support in the EGL driver, and are * only available if the driver supports them. However, some of these must be * supported because they are used by the Android system itself; these are * listd as mandatory below and are required by the CDD. The system *assumes* * the mandatory extensions are present and may not function properly if some * are missing. * * NOTE: Both strings MUST have a single space as the last character. */ extern char const * const gBuiltinExtensionString = "EGL_KHR_get_all_proc_addresses " "EGL_ANDROID_presentation_time " ; extern char const * const gExtensionString = "EGL_KHR_image " // mandatory "EGL_KHR_image_base " // mandatory "EGL_KHR_image_pixmap " "EGL_KHR_lock_surface " #if (ENABLE_EGL_KHR_GL_COLORSPACE != 0) "EGL_KHR_gl_colorspace " #endif "EGL_KHR_gl_texture_2D_image " "EGL_KHR_gl_texture_cubemap_image " "EGL_KHR_gl_renderbuffer_image " "EGL_KHR_reusable_sync " "EGL_KHR_fence_sync " "EGL_KHR_create_context " "EGL_EXT_create_context_robustness " "EGL_NV_system_time " "EGL_ANDROID_image_native_buffer " // mandatory "EGL_KHR_wait_sync " // strongly recommended ; // extensions not exposed to applications but used by the ANDROID system // "EGL_ANDROID_blob_cache " // strongly recommended // "EGL_IMG_hibernate_process " // optional // "EGL_ANDROID_native_fence_sync " // strongly recommended // "EGL_ANDROID_framebuffer_target " // mandatory for HWC 1.1 // "EGL_ANDROID_recordable " // mandatory /* * EGL Extensions entry-points exposed to 3rd party applications * (keep in sync with gExtensionString above) * */ static const extention_map_t sExtensionMap[] = { // EGL_KHR_lock_surface { "eglLockSurfaceKHR", (__eglMustCastToProperFunctionPointerType)&eglLockSurfaceKHR }, { "eglUnlockSurfaceKHR", (__eglMustCastToProperFunctionPointerType)&eglUnlockSurfaceKHR }, // EGL_KHR_image, EGL_KHR_image_base { "eglCreateImageKHR", (__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR }, { "eglDestroyImageKHR", (__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR }, // EGL_KHR_reusable_sync, EGL_KHR_fence_sync { "eglCreateSyncKHR", (__eglMustCastToProperFunctionPointerType)&eglCreateSyncKHR }, { "eglDestroySyncKHR", (__eglMustCastToProperFunctionPointerType)&eglDestroySyncKHR }, { "eglClientWaitSyncKHR", (__eglMustCastToProperFunctionPointerType)&eglClientWaitSyncKHR }, { "eglSignalSyncKHR", (__eglMustCastToProperFunctionPointerType)&eglSignalSyncKHR }, { "eglGetSyncAttribKHR", (__eglMustCastToProperFunctionPointerType)&eglGetSyncAttribKHR }, // EGL_NV_system_time { "eglGetSystemTimeFrequencyNV", (__eglMustCastToProperFunctionPointerType)&eglGetSystemTimeFrequencyNV }, { "eglGetSystemTimeNV", (__eglMustCastToProperFunctionPointerType)&eglGetSystemTimeNV }, // EGL_KHR_wait_sync { "eglWaitSyncKHR", (__eglMustCastToProperFunctionPointerType)&eglWaitSyncKHR }, // EGL_ANDROID_presentation_time { "eglPresentationTimeANDROID", (__eglMustCastToProperFunctionPointerType)&eglPresentationTimeANDROID }, }; /* * These extensions entry-points should not be exposed to applications. * They're used internally by the Android EGL layer. */ #define FILTER_EXTENSIONS(procname) \ (!strcmp((procname), "eglSetBlobCacheFuncsANDROID") || \ !strcmp((procname), "eglHibernateProcessIMG") || \ !strcmp((procname), "eglAwakenProcessIMG") || \ !strcmp((procname), "eglDupNativeFenceFDANDROID")) // accesses protected by sExtensionMapMutex static DefaultKeyedVector sGLExtentionMap; static int sGLExtentionSlot = 0; static pthread_mutex_t sExtensionMapMutex = PTHREAD_MUTEX_INITIALIZER; static void(*findProcAddress(const char* name, const extention_map_t* map, size_t n))() { for (uint32_t i=0 ; i= NUM_DISPLAYS) { return setError(EGL_BAD_PARAMETER, EGL_NO_DISPLAY); } if (egl_init_drivers() == EGL_FALSE) { return setError(EGL_BAD_PARAMETER, EGL_NO_DISPLAY); } EGLDisplay dpy = egl_display_t::getFromNativeDisplay(display); return dpy; } // ---------------------------------------------------------------------------- // Initialization // ---------------------------------------------------------------------------- EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) { clearError(); egl_display_ptr dp = get_display(dpy); if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE); EGLBoolean res = dp->initialize(major, minor); return res; } EGLBoolean eglTerminate(EGLDisplay dpy) { // NOTE: don't unload the drivers b/c some APIs can be called // after eglTerminate() has been called. eglTerminate() only // terminates an EGLDisplay, not a EGL itself. clearError(); egl_display_ptr dp = get_display(dpy); if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE); EGLBoolean res = dp->terminate(); return res; } // ---------------------------------------------------------------------------- // configuration // ---------------------------------------------------------------------------- EGLBoolean eglGetConfigs( EGLDisplay dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; if (num_config==0) { return setError(EGL_BAD_PARAMETER, EGL_FALSE); } EGLBoolean res = EGL_FALSE; *num_config = 0; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso) { res = cnx->egl.eglGetConfigs( dp->disp.dpy, configs, config_size, num_config); } return res; } EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; if (num_config==0) { return setError(EGL_BAD_PARAMETER, EGL_FALSE); } EGLBoolean res = EGL_FALSE; *num_config = 0; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso) { if (attrib_list) { char value[PROPERTY_VALUE_MAX]; property_get("debug.egl.force_msaa", value, "false"); if (!strcmp(value, "true")) { size_t attribCount = 0; EGLint attrib = attrib_list[0]; // Only enable MSAA if the context is OpenGL ES 2.0 and // if no caveat is requested const EGLint *attribRendererable = NULL; const EGLint *attribCaveat = NULL; // Count the number of attributes and look for // EGL_RENDERABLE_TYPE and EGL_CONFIG_CAVEAT while (attrib != EGL_NONE) { attrib = attrib_list[attribCount]; switch (attrib) { case EGL_RENDERABLE_TYPE: attribRendererable = &attrib_list[attribCount]; break; case EGL_CONFIG_CAVEAT: attribCaveat = &attrib_list[attribCount]; break; } attribCount++; } if (attribRendererable && attribRendererable[1] == EGL_OPENGL_ES2_BIT && (!attribCaveat || attribCaveat[1] != EGL_NONE)) { // Insert 2 extra attributes to force-enable MSAA 4x EGLint aaAttribs[attribCount + 4]; aaAttribs[0] = EGL_SAMPLE_BUFFERS; aaAttribs[1] = 1; aaAttribs[2] = EGL_SAMPLES; aaAttribs[3] = 4; memcpy(&aaAttribs[4], attrib_list, attribCount * sizeof(EGLint)); EGLint numConfigAA; EGLBoolean resAA = cnx->egl.eglChooseConfig( dp->disp.dpy, aaAttribs, configs, config_size, &numConfigAA); if (resAA == EGL_TRUE && numConfigAA > 0) { ALOGD("Enabling MSAA 4x"); *num_config = numConfigAA; return resAA; } } } } res = cnx->egl.eglChooseConfig( dp->disp.dpy, attrib_list, configs, config_size, num_config); } return res; } EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value) { clearError(); egl_connection_t* cnx = NULL; const egl_display_ptr dp = validate_display_connection(dpy, cnx); if (!dp) return EGL_FALSE; return cnx->egl.eglGetConfigAttrib( dp->disp.dpy, config, attribute, value); } // ---------------------------------------------------------------------------- // surfaces // ---------------------------------------------------------------------------- // The EGL_KHR_gl_colorspace spec hasn't been ratified yet, so these haven't // been added to the Khronos egl.h. #define EGL_GL_COLORSPACE_KHR EGL_VG_COLORSPACE #define EGL_GL_COLORSPACE_SRGB_KHR EGL_VG_COLORSPACE_sRGB #define EGL_GL_COLORSPACE_LINEAR_KHR EGL_VG_COLORSPACE_LINEAR // Turn linear formats into corresponding sRGB formats when colorspace is // EGL_GL_COLORSPACE_SRGB_KHR, or turn sRGB formats into corresponding linear // formats when colorspace is EGL_GL_COLORSPACE_LINEAR_KHR. In any cases where // the modification isn't possible, the original format is returned. static int modifyFormatColorspace(int fmt, EGLint colorspace) { if (colorspace == EGL_GL_COLORSPACE_LINEAR_KHR) { switch (fmt) { case HAL_PIXEL_FORMAT_sRGB_A_8888: return HAL_PIXEL_FORMAT_RGBA_8888; case HAL_PIXEL_FORMAT_sRGB_X_8888: return HAL_PIXEL_FORMAT_RGBX_8888; } } else if (colorspace == EGL_GL_COLORSPACE_SRGB_KHR) { switch (fmt) { case HAL_PIXEL_FORMAT_RGBA_8888: return HAL_PIXEL_FORMAT_sRGB_A_8888; case HAL_PIXEL_FORMAT_RGBX_8888: return HAL_PIXEL_FORMAT_sRGB_X_8888; } } return fmt; } EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config, NativeWindowType window, const EGLint *attrib_list) { clearError(); egl_connection_t* cnx = NULL; egl_display_ptr dp = validate_display_connection(dpy, cnx); if (dp) { EGLDisplay iDpy = dp->disp.dpy; if (native_window_api_connect(window, NATIVE_WINDOW_API_EGL) != OK) { ALOGE("EGLNativeWindowType %p already connected to another API", window); return setError(EGL_BAD_ALLOC, EGL_NO_SURFACE); } // Set the native window's buffers format to match what this config requests. // Whether to use sRGB gamma is not part of the EGLconfig, but is part // of our native format. So if sRGB gamma is requested, we have to // modify the EGLconfig's format before setting the native window's // format. #if WORKAROUND_BUG_10194508 #warning "WORKAROUND_10194508 enabled" EGLint format; if (!cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_NATIVE_VISUAL_ID, &format)) { ALOGE("eglGetConfigAttrib(EGL_NATIVE_VISUAL_ID) failed: %#x", eglGetError()); format = 0; } if (attrib_list) { for (const EGLint* attr = attrib_list; *attr != EGL_NONE; attr += 2) { if (*attr == EGL_GL_COLORSPACE_KHR && dp->haveExtension("EGL_KHR_gl_colorspace")) { if (ENABLE_EGL_KHR_GL_COLORSPACE) { format = modifyFormatColorspace(format, *(attr+1)); } else { // Normally we'd pass through unhandled attributes to // the driver. But in case the driver implements this // extension but we're disabling it, we want to prevent // it getting through -- support will be broken without // our help. ALOGE("sRGB window surfaces not supported"); return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); } } } } #else // by default, just pick RGBA_8888 EGLint format = HAL_PIXEL_FORMAT_RGBA_8888; EGLint a = 0; cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_ALPHA_SIZE, &a); if (a > 0) { // alpha-channel requested, there's really only one suitable format format = HAL_PIXEL_FORMAT_RGBA_8888; } else { EGLint r, g, b; r = g = b = 0; cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_RED_SIZE, &r); cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_GREEN_SIZE, &g); cnx->egl.eglGetConfigAttrib(iDpy, config, EGL_BLUE_SIZE, &b); EGLint colorDepth = r + g + b; if (colorDepth <= 16) { format = HAL_PIXEL_FORMAT_RGB_565; } else { format = HAL_PIXEL_FORMAT_RGBX_8888; } } // now select a corresponding sRGB format if needed if (attrib_list && dp->haveExtension("EGL_KHR_gl_colorspace")) { for (const EGLint* attr = attrib_list; *attr != EGL_NONE; attr += 2) { if (*attr == EGL_GL_COLORSPACE_KHR) { if (ENABLE_EGL_KHR_GL_COLORSPACE) { format = modifyFormatColorspace(format, *(attr+1)); } else { // Normally we'd pass through unhandled attributes to // the driver. But in case the driver implements this // extension but we're disabling it, we want to prevent // it getting through -- support will be broken without // our help. ALOGE("sRGB window surfaces not supported"); return setError(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE); } } } } #endif if (format != 0) { int err = native_window_set_buffers_format(window, format); if (err != 0) { ALOGE("error setting native window pixel format: %s (%d)", strerror(-err), err); native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL); return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE); } } // the EGL spec requires that a new EGLSurface default to swap interval // 1, so explicitly set that on the window here. ANativeWindow* anw = reinterpret_cast(window); anw->setSwapInterval(anw, 1); EGLSurface surface = cnx->egl.eglCreateWindowSurface( iDpy, config, window, attrib_list); if (surface != EGL_NO_SURFACE) { egl_surface_t* s = new egl_surface_t(dp.get(), config, window, surface, cnx); return s; } // EGLSurface creation failed native_window_set_buffers_format(window, 0); native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL); } return EGL_NO_SURFACE; } EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config, NativePixmapType pixmap, const EGLint *attrib_list) { clearError(); egl_connection_t* cnx = NULL; egl_display_ptr dp = validate_display_connection(dpy, cnx); if (dp) { EGLSurface surface = cnx->egl.eglCreatePixmapSurface( dp->disp.dpy, config, pixmap, attrib_list); if (surface != EGL_NO_SURFACE) { egl_surface_t* s = new egl_surface_t(dp.get(), config, NULL, surface, cnx); return s; } } return EGL_NO_SURFACE; } EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list) { clearError(); egl_connection_t* cnx = NULL; egl_display_ptr dp = validate_display_connection(dpy, cnx); if (dp) { EGLSurface surface = cnx->egl.eglCreatePbufferSurface( dp->disp.dpy, config, attrib_list); if (surface != EGL_NO_SURFACE) { egl_surface_t* s = new egl_surface_t(dp.get(), config, NULL, surface, cnx); return s; } } return EGL_NO_SURFACE; } EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface surface) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; SurfaceRef _s(dp.get(), surface); if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); egl_surface_t * const s = get_surface(surface); EGLBoolean result = s->cnx->egl.eglDestroySurface(dp->disp.dpy, s->surface); if (result == EGL_TRUE) { _s.terminate(); } return result; } EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint *value) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; SurfaceRef _s(dp.get(), surface); if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); egl_surface_t const * const s = get_surface(surface); return s->cnx->egl.eglQuerySurface( dp->disp.dpy, s->surface, attribute, value); } void EGLAPI eglBeginFrame(EGLDisplay dpy, EGLSurface surface) { ATRACE_CALL(); clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) { return; } SurfaceRef _s(dp.get(), surface); if (!_s.get()) { setError(EGL_BAD_SURFACE, EGL_FALSE); return; } } // ---------------------------------------------------------------------------- // Contexts // ---------------------------------------------------------------------------- EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_list, const EGLint *attrib_list) { clearError(); egl_connection_t* cnx = NULL; const egl_display_ptr dp = validate_display_connection(dpy, cnx); if (dp) { if (share_list != EGL_NO_CONTEXT) { if (!ContextRef(dp.get(), share_list).get()) { return setError(EGL_BAD_CONTEXT, EGL_NO_CONTEXT); } egl_context_t* const c = get_context(share_list); share_list = c->context; } EGLContext context = cnx->egl.eglCreateContext( dp->disp.dpy, config, share_list, attrib_list); if (context != EGL_NO_CONTEXT) { // figure out if it's a GLESv1 or GLESv2 int version = 0; if (attrib_list) { while (*attrib_list != EGL_NONE) { GLint attr = *attrib_list++; GLint value = *attrib_list++; if (attr == EGL_CONTEXT_CLIENT_VERSION) { if (value == 1) { version = egl_connection_t::GLESv1_INDEX; } else if (value == 2 || value == 3) { version = egl_connection_t::GLESv2_INDEX; } } }; } egl_context_t* c = new egl_context_t(dpy, context, config, cnx, version); #if EGL_TRACE if (getEGLDebugLevel() > 0) GLTrace_eglCreateContext(version, c); #endif return c; } } return EGL_NO_CONTEXT; } EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; ContextRef _c(dp.get(), ctx); if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE); egl_context_t * const c = get_context(ctx); EGLBoolean result = c->cnx->egl.eglDestroyContext(dp->disp.dpy, c->context); if (result == EGL_TRUE) { _c.terminate(); } return result; } EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx) { clearError(); egl_display_ptr dp = validate_display(dpy); if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE); // If ctx is not EGL_NO_CONTEXT, read is not EGL_NO_SURFACE, or draw is not // EGL_NO_SURFACE, then an EGL_NOT_INITIALIZED error is generated if dpy is // a valid but uninitialized display. if ( (ctx != EGL_NO_CONTEXT) || (read != EGL_NO_SURFACE) || (draw != EGL_NO_SURFACE) ) { if (!dp->isReady()) return setError(EGL_NOT_INITIALIZED, EGL_FALSE); } // get a reference to the object passed in ContextRef _c(dp.get(), ctx); SurfaceRef _d(dp.get(), draw); SurfaceRef _r(dp.get(), read); // validate the context (if not EGL_NO_CONTEXT) if ((ctx != EGL_NO_CONTEXT) && !_c.get()) { // EGL_NO_CONTEXT is valid return setError(EGL_BAD_CONTEXT, EGL_FALSE); } // these are the underlying implementation's object EGLContext impl_ctx = EGL_NO_CONTEXT; EGLSurface impl_draw = EGL_NO_SURFACE; EGLSurface impl_read = EGL_NO_SURFACE; // these are our objects structs passed in egl_context_t * c = NULL; egl_surface_t const * d = NULL; egl_surface_t const * r = NULL; // these are the current objects structs egl_context_t * cur_c = get_context(getContext()); if (ctx != EGL_NO_CONTEXT) { c = get_context(ctx); impl_ctx = c->context; } else { // no context given, use the implementation of the current context if (draw != EGL_NO_SURFACE || read != EGL_NO_SURFACE) { // calling eglMakeCurrent( ..., !=0, !=0, EGL_NO_CONTEXT); return setError(EGL_BAD_MATCH, EGL_FALSE); } if (cur_c == NULL) { // no current context // not an error, there is just no current context. return EGL_TRUE; } } // retrieve the underlying implementation's draw EGLSurface if (draw != EGL_NO_SURFACE) { if (!_d.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); d = get_surface(draw); impl_draw = d->surface; } // retrieve the underlying implementation's read EGLSurface if (read != EGL_NO_SURFACE) { if (!_r.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); r = get_surface(read); impl_read = r->surface; } EGLBoolean result = dp->makeCurrent(c, cur_c, draw, read, ctx, impl_draw, impl_read, impl_ctx); if (result == EGL_TRUE) { if (c) { setGLHooksThreadSpecific(c->cnx->hooks[c->version]); egl_tls_t::setContext(ctx); #if EGL_TRACE if (getEGLDebugLevel() > 0) GLTrace_eglMakeCurrent(c->version, c->cnx->hooks[c->version], ctx); #endif _c.acquire(); _r.acquire(); _d.acquire(); } else { setGLHooksThreadSpecific(&gHooksNoContext); egl_tls_t::setContext(EGL_NO_CONTEXT); } } else { // this will ALOGE the error egl_connection_t* const cnx = &gEGLImpl; result = setError(cnx->egl.eglGetError(), EGL_FALSE); } return result; } EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx, EGLint attribute, EGLint *value) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; ContextRef _c(dp.get(), ctx); if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE); egl_context_t * const c = get_context(ctx); return c->cnx->egl.eglQueryContext( dp->disp.dpy, c->context, attribute, value); } EGLContext eglGetCurrentContext(void) { // could be called before eglInitialize(), but we wouldn't have a context // then, and this function would correctly return EGL_NO_CONTEXT. clearError(); EGLContext ctx = getContext(); return ctx; } EGLSurface eglGetCurrentSurface(EGLint readdraw) { // could be called before eglInitialize(), but we wouldn't have a context // then, and this function would correctly return EGL_NO_SURFACE. clearError(); EGLContext ctx = getContext(); if (ctx) { egl_context_t const * const c = get_context(ctx); if (!c) return setError(EGL_BAD_CONTEXT, EGL_NO_SURFACE); switch (readdraw) { case EGL_READ: return c->read; case EGL_DRAW: return c->draw; default: return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE); } } return EGL_NO_SURFACE; } EGLDisplay eglGetCurrentDisplay(void) { // could be called before eglInitialize(), but we wouldn't have a context // then, and this function would correctly return EGL_NO_DISPLAY. clearError(); EGLContext ctx = getContext(); if (ctx) { egl_context_t const * const c = get_context(ctx); if (!c) return setError(EGL_BAD_CONTEXT, EGL_NO_SURFACE); return c->dpy; } return EGL_NO_DISPLAY; } EGLBoolean eglWaitGL(void) { clearError(); egl_connection_t* const cnx = &gEGLImpl; if (!cnx->dso) return setError(EGL_BAD_CONTEXT, EGL_FALSE); return cnx->egl.eglWaitGL(); } EGLBoolean eglWaitNative(EGLint engine) { clearError(); egl_connection_t* const cnx = &gEGLImpl; if (!cnx->dso) return setError(EGL_BAD_CONTEXT, EGL_FALSE); return cnx->egl.eglWaitNative(engine); } EGLint eglGetError(void) { EGLint err = EGL_SUCCESS; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso) { err = cnx->egl.eglGetError(); } if (err == EGL_SUCCESS) { err = egl_tls_t::getError(); } return err; } static __eglMustCastToProperFunctionPointerType findBuiltinGLWrapper( const char* procname) { const egl_connection_t* cnx = &gEGLImpl; void* proc = NULL; proc = dlsym(cnx->libGles2, procname); if (proc) return (__eglMustCastToProperFunctionPointerType)proc; proc = dlsym(cnx->libGles1, procname); if (proc) return (__eglMustCastToProperFunctionPointerType)proc; return NULL; } __eglMustCastToProperFunctionPointerType eglGetProcAddress(const char *procname) { // eglGetProcAddress() could be the very first function called // in which case we must make sure we've initialized ourselves, this // happens the first time egl_get_display() is called. clearError(); if (egl_init_drivers() == EGL_FALSE) { setError(EGL_BAD_PARAMETER, NULL); return NULL; } if (FILTER_EXTENSIONS(procname)) { return NULL; } __eglMustCastToProperFunctionPointerType addr; addr = findProcAddress(procname, sExtensionMap, NELEM(sExtensionMap)); if (addr) return addr; addr = findBuiltinGLWrapper(procname); if (addr) return addr; // this protects accesses to sGLExtentionMap and sGLExtentionSlot pthread_mutex_lock(&sExtensionMapMutex); /* * Since eglGetProcAddress() is not associated to anything, it needs * to return a function pointer that "works" regardless of what * the current context is. * * For this reason, we return a "forwarder", a small stub that takes * care of calling the function associated with the context * currently bound. * * We first look for extensions we've already resolved, if we're seeing * this extension for the first time, we go through all our * implementations and call eglGetProcAddress() and record the * result in the appropriate implementation hooks and return the * address of the forwarder corresponding to that hook set. * */ const String8 name(procname); addr = sGLExtentionMap.valueFor(name); const int slot = sGLExtentionSlot; ALOGE_IF(slot >= MAX_NUMBER_OF_GL_EXTENSIONS, "no more slots for eglGetProcAddress(\"%s\")", procname); #if EGL_TRACE gl_hooks_t *debugHooks = GLTrace_getGLHooks(); #endif if (!addr && (slot < MAX_NUMBER_OF_GL_EXTENSIONS)) { bool found = false; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglGetProcAddress) { // Extensions are independent of the bound context addr = cnx->hooks[egl_connection_t::GLESv1_INDEX]->ext.extensions[slot] = cnx->hooks[egl_connection_t::GLESv2_INDEX]->ext.extensions[slot] = #if EGL_TRACE debugHooks->ext.extensions[slot] = gHooksTrace.ext.extensions[slot] = #endif cnx->egl.eglGetProcAddress(procname); if (addr) found = true; } if (found) { addr = gExtensionForwarders[slot]; sGLExtentionMap.add(name, addr); sGLExtentionSlot++; } } pthread_mutex_unlock(&sExtensionMapMutex); return addr; } class FrameCompletionThread : public Thread { public: static void queueSync(EGLSyncKHR sync) { static sp thread(new FrameCompletionThread); static bool running = false; if (!running) { thread->run("GPUFrameCompletion"); running = true; } { Mutex::Autolock lock(thread->mMutex); ScopedTrace st(ATRACE_TAG, String8::format("kicked off frame %d", thread->mFramesQueued).string()); thread->mQueue.push_back(sync); thread->mCondition.signal(); thread->mFramesQueued++; ATRACE_INT("GPU Frames Outstanding", thread->mQueue.size()); } } private: FrameCompletionThread() : mFramesQueued(0), mFramesCompleted(0) {} virtual bool threadLoop() { EGLSyncKHR sync; uint32_t frameNum; { Mutex::Autolock lock(mMutex); while (mQueue.isEmpty()) { mCondition.wait(mMutex); } sync = mQueue[0]; frameNum = mFramesCompleted; } EGLDisplay dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY); { ScopedTrace st(ATRACE_TAG, String8::format("waiting for frame %d", frameNum).string()); EGLint result = eglClientWaitSyncKHR(dpy, sync, 0, EGL_FOREVER_KHR); if (result == EGL_FALSE) { ALOGE("FrameCompletion: error waiting for fence: %#x", eglGetError()); } else if (result == EGL_TIMEOUT_EXPIRED_KHR) { ALOGE("FrameCompletion: timeout waiting for fence"); } eglDestroySyncKHR(dpy, sync); } { Mutex::Autolock lock(mMutex); mQueue.removeAt(0); mFramesCompleted++; ATRACE_INT("GPU Frames Outstanding", mQueue.size()); } return true; } uint32_t mFramesQueued; uint32_t mFramesCompleted; Vector mQueue; Condition mCondition; Mutex mMutex; }; EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) { ATRACE_CALL(); clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; SurfaceRef _s(dp.get(), draw); if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); #if EGL_TRACE gl_hooks_t const *trace_hooks = getGLTraceThreadSpecific(); if (getEGLDebugLevel() > 0) { if (trace_hooks == NULL) { if (GLTrace_start() < 0) { ALOGE("Disabling Tracer for OpenGL ES"); setEGLDebugLevel(0); } else { // switch over to the trace version of hooks EGLContext ctx = egl_tls_t::getContext(); egl_context_t * const c = get_context(ctx); if (c) { setGLHooksThreadSpecific(c->cnx->hooks[c->version]); GLTrace_eglMakeCurrent(c->version, c->cnx->hooks[c->version], ctx); } } } GLTrace_eglSwapBuffers(dpy, draw); } else if (trace_hooks != NULL) { // tracing is now disabled, so switch back to the non trace version EGLContext ctx = egl_tls_t::getContext(); egl_context_t * const c = get_context(ctx); if (c) setGLHooksThreadSpecific(c->cnx->hooks[c->version]); GLTrace_stop(); } #endif egl_surface_t const * const s = get_surface(draw); if (CC_UNLIKELY(dp->traceGpuCompletion)) { EGLSyncKHR sync = eglCreateSyncKHR(dpy, EGL_SYNC_FENCE_KHR, NULL); if (sync != EGL_NO_SYNC_KHR) { FrameCompletionThread::queueSync(sync); } } if (CC_UNLIKELY(dp->finishOnSwap)) { uint32_t pixel; egl_context_t * const c = get_context( egl_tls_t::getContext() ); if (c) { // glReadPixels() ensures that the frame is complete s->cnx->hooks[c->version]->gl.glReadPixels(0,0,1,1, GL_RGBA,GL_UNSIGNED_BYTE,&pixel); } } return s->cnx->egl.eglSwapBuffers(dp->disp.dpy, s->surface); } EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface, NativePixmapType target) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; SurfaceRef _s(dp.get(), surface); if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); egl_surface_t const * const s = get_surface(surface); return s->cnx->egl.eglCopyBuffers(dp->disp.dpy, s->surface, target); } const char* eglQueryString(EGLDisplay dpy, EGLint name) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return (const char *) NULL; switch (name) { case EGL_VENDOR: return dp->getVendorString(); case EGL_VERSION: return dp->getVersionString(); case EGL_EXTENSIONS: return dp->getExtensionString(); case EGL_CLIENT_APIS: return dp->getClientApiString(); } return setError(EGL_BAD_PARAMETER, (const char *)0); } EGLAPI const char* eglQueryStringImplementationANDROID(EGLDisplay dpy, EGLint name) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return (const char *) NULL; switch (name) { case EGL_VENDOR: return dp->disp.queryString.vendor; case EGL_VERSION: return dp->disp.queryString.version; case EGL_EXTENSIONS: return dp->disp.queryString.extensions; case EGL_CLIENT_APIS: return dp->disp.queryString.clientApi; } return setError(EGL_BAD_PARAMETER, (const char *)0); } // ---------------------------------------------------------------------------- // EGL 1.1 // ---------------------------------------------------------------------------- EGLBoolean eglSurfaceAttrib( EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; SurfaceRef _s(dp.get(), surface); if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); egl_surface_t const * const s = get_surface(surface); if (s->cnx->egl.eglSurfaceAttrib) { return s->cnx->egl.eglSurfaceAttrib( dp->disp.dpy, s->surface, attribute, value); } return setError(EGL_BAD_SURFACE, EGL_FALSE); } EGLBoolean eglBindTexImage( EGLDisplay dpy, EGLSurface surface, EGLint buffer) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; SurfaceRef _s(dp.get(), surface); if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); egl_surface_t const * const s = get_surface(surface); if (s->cnx->egl.eglBindTexImage) { return s->cnx->egl.eglBindTexImage( dp->disp.dpy, s->surface, buffer); } return setError(EGL_BAD_SURFACE, EGL_FALSE); } EGLBoolean eglReleaseTexImage( EGLDisplay dpy, EGLSurface surface, EGLint buffer) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; SurfaceRef _s(dp.get(), surface); if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); egl_surface_t const * const s = get_surface(surface); if (s->cnx->egl.eglReleaseTexImage) { return s->cnx->egl.eglReleaseTexImage( dp->disp.dpy, s->surface, buffer); } return setError(EGL_BAD_SURFACE, EGL_FALSE); } EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; EGLBoolean res = EGL_TRUE; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglSwapInterval) { res = cnx->egl.eglSwapInterval(dp->disp.dpy, interval); } return res; } // ---------------------------------------------------------------------------- // EGL 1.2 // ---------------------------------------------------------------------------- EGLBoolean eglWaitClient(void) { clearError(); egl_connection_t* const cnx = &gEGLImpl; if (!cnx->dso) return setError(EGL_BAD_CONTEXT, EGL_FALSE); EGLBoolean res; if (cnx->egl.eglWaitClient) { res = cnx->egl.eglWaitClient(); } else { res = cnx->egl.eglWaitGL(); } return res; } EGLBoolean eglBindAPI(EGLenum api) { clearError(); if (egl_init_drivers() == EGL_FALSE) { return setError(EGL_BAD_PARAMETER, EGL_FALSE); } // bind this API on all EGLs EGLBoolean res = EGL_TRUE; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglBindAPI) { res = cnx->egl.eglBindAPI(api); } return res; } EGLenum eglQueryAPI(void) { clearError(); if (egl_init_drivers() == EGL_FALSE) { return setError(EGL_BAD_PARAMETER, EGL_FALSE); } egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglQueryAPI) { return cnx->egl.eglQueryAPI(); } // or, it can only be OpenGL ES return EGL_OPENGL_ES_API; } EGLBoolean eglReleaseThread(void) { clearError(); #if EGL_TRACE if (getEGLDebugLevel() > 0) GLTrace_eglReleaseThread(); #endif // If there is context bound to the thread, release it egl_display_t::loseCurrent(get_context(getContext())); egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglReleaseThread) { cnx->egl.eglReleaseThread(); } egl_tls_t::clearTLS(); return EGL_TRUE; } EGLSurface eglCreatePbufferFromClientBuffer( EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, EGLConfig config, const EGLint *attrib_list) { clearError(); egl_connection_t* cnx = NULL; const egl_display_ptr dp = validate_display_connection(dpy, cnx); if (!dp) return EGL_FALSE; if (cnx->egl.eglCreatePbufferFromClientBuffer) { return cnx->egl.eglCreatePbufferFromClientBuffer( dp->disp.dpy, buftype, buffer, config, attrib_list); } return setError(EGL_BAD_CONFIG, EGL_NO_SURFACE); } // ---------------------------------------------------------------------------- // EGL_EGLEXT_VERSION 3 // ---------------------------------------------------------------------------- EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface, const EGLint *attrib_list) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; SurfaceRef _s(dp.get(), surface); if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); egl_surface_t const * const s = get_surface(surface); if (s->cnx->egl.eglLockSurfaceKHR) { return s->cnx->egl.eglLockSurfaceKHR( dp->disp.dpy, s->surface, attrib_list); } return setError(EGL_BAD_DISPLAY, EGL_FALSE); } EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; SurfaceRef _s(dp.get(), surface); if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE); egl_surface_t const * const s = get_surface(surface); if (s->cnx->egl.eglUnlockSurfaceKHR) { return s->cnx->egl.eglUnlockSurfaceKHR(dp->disp.dpy, s->surface); } return setError(EGL_BAD_DISPLAY, EGL_FALSE); } EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_NO_IMAGE_KHR; ContextRef _c(dp.get(), ctx); egl_context_t * const c = _c.get(); EGLImageKHR result = EGL_NO_IMAGE_KHR; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglCreateImageKHR) { result = cnx->egl.eglCreateImageKHR( dp->disp.dpy, c ? c->context : EGL_NO_CONTEXT, target, buffer, attrib_list); } return result; } EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; EGLBoolean result = EGL_FALSE; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglDestroyImageKHR) { result = cnx->egl.eglDestroyImageKHR(dp->disp.dpy, img); } return result; } // ---------------------------------------------------------------------------- // EGL_EGLEXT_VERSION 5 // ---------------------------------------------------------------------------- EGLSyncKHR eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_NO_SYNC_KHR; EGLSyncKHR result = EGL_NO_SYNC_KHR; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglCreateSyncKHR) { result = cnx->egl.eglCreateSyncKHR(dp->disp.dpy, type, attrib_list); } return result; } EGLBoolean eglDestroySyncKHR(EGLDisplay dpy, EGLSyncKHR sync) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; EGLBoolean result = EGL_FALSE; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglDestroySyncKHR) { result = cnx->egl.eglDestroySyncKHR(dp->disp.dpy, sync); } return result; } EGLBoolean eglSignalSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLenum mode) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; EGLBoolean result = EGL_FALSE; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglSignalSyncKHR) { result = cnx->egl.eglSignalSyncKHR( dp->disp.dpy, sync, mode); } return result; } EGLint eglClientWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; EGLBoolean result = EGL_FALSE; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglClientWaitSyncKHR) { result = cnx->egl.eglClientWaitSyncKHR( dp->disp.dpy, sync, flags, timeout); } return result; } EGLBoolean eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint attribute, EGLint *value) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; EGLBoolean result = EGL_FALSE; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglGetSyncAttribKHR) { result = cnx->egl.eglGetSyncAttribKHR( dp->disp.dpy, sync, attribute, value); } return result; } // ---------------------------------------------------------------------------- // EGL_EGLEXT_VERSION 15 // ---------------------------------------------------------------------------- EGLint eglWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_FALSE; EGLint result = EGL_FALSE; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglWaitSyncKHR) { result = cnx->egl.eglWaitSyncKHR(dp->disp.dpy, sync, flags); } return result; } // ---------------------------------------------------------------------------- // ANDROID extensions // ---------------------------------------------------------------------------- EGLint eglDupNativeFenceFDANDROID(EGLDisplay dpy, EGLSyncKHR sync) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) return EGL_NO_NATIVE_FENCE_FD_ANDROID; EGLint result = EGL_NO_NATIVE_FENCE_FD_ANDROID; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglDupNativeFenceFDANDROID) { result = cnx->egl.eglDupNativeFenceFDANDROID(dp->disp.dpy, sync); } return result; } EGLBoolean eglPresentationTimeANDROID(EGLDisplay dpy, EGLSurface surface, EGLnsecsANDROID time) { clearError(); const egl_display_ptr dp = validate_display(dpy); if (!dp) { return EGL_FALSE; } SurfaceRef _s(dp.get(), surface); if (!_s.get()) { setError(EGL_BAD_SURFACE, EGL_FALSE); return EGL_FALSE; } egl_surface_t const * const s = get_surface(surface); native_window_set_buffers_timestamp(s->win.get(), time); return EGL_TRUE; } // ---------------------------------------------------------------------------- // NVIDIA extensions // ---------------------------------------------------------------------------- EGLuint64NV eglGetSystemTimeFrequencyNV() { clearError(); if (egl_init_drivers() == EGL_FALSE) { return setError(EGL_BAD_PARAMETER, EGL_FALSE); } EGLuint64NV ret = 0; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglGetSystemTimeFrequencyNV) { return cnx->egl.eglGetSystemTimeFrequencyNV(); } return setErrorQuiet(EGL_BAD_DISPLAY, 0); } EGLuint64NV eglGetSystemTimeNV() { clearError(); if (egl_init_drivers() == EGL_FALSE) { return setError(EGL_BAD_PARAMETER, EGL_FALSE); } EGLuint64NV ret = 0; egl_connection_t* const cnx = &gEGLImpl; if (cnx->dso && cnx->egl.eglGetSystemTimeNV) { return cnx->egl.eglGetSystemTimeNV(); } return setErrorQuiet(EGL_BAD_DISPLAY, 0); }