diff --git a/opengl/libs/EGL/BlobCache.cpp b/opengl/libs/EGL/BlobCache.cpp
index b3752f5..74c4d7d 100644
--- a/opengl/libs/EGL/BlobCache.cpp
+++ b/opengl/libs/EGL/BlobCache.cpp
@@ -79,7 +79,7 @@
     }
 
     std::shared_ptr<Blob> dummyKey(new Blob(key, keySize, false));
-    CacheEntry dummyEntry(dummyKey, NULL);
+    CacheEntry dummyEntry(dummyKey, nullptr);
 
     while (true) {
         auto index = std::lower_bound(mCacheEntries.begin(), mCacheEntries.end(), dummyEntry);
@@ -139,7 +139,7 @@
         return 0;
     }
     std::shared_ptr<Blob> dummyKey(new Blob(key, keySize, false));
-    CacheEntry dummyEntry(dummyKey, NULL);
+    CacheEntry dummyEntry(dummyKey, nullptr);
     auto index = std::lower_bound(mCacheEntries.begin(), mCacheEntries.end(), dummyEntry);
     if (index == mCacheEntries.end() || dummyEntry < *index) {
         ALOGV("get: no cache entry found for key of size %zu", keySize);
@@ -308,7 +308,7 @@
         mData(copyData ? malloc(size) : data),
         mSize(size),
         mOwnsData(copyData) {
-    if (data != NULL && copyData) {
+    if (data != nullptr && copyData) {
         memcpy(const_cast<void*>(mData), data, size);
     }
 }
diff --git a/opengl/libs/EGL/BlobCache_test.cpp b/opengl/libs/EGL/BlobCache_test.cpp
index edbaaf0..cf67cf4 100644
--- a/opengl/libs/EGL/BlobCache_test.cpp
+++ b/opengl/libs/EGL/BlobCache_test.cpp
@@ -97,7 +97,7 @@
 
 TEST_F(BlobCacheTest, GetDoesntAccessNullBuffer) {
     mBC->set("abcd", 4, "efgh", 4);
-    ASSERT_EQ(size_t(4), mBC->get("abcd", 4, NULL, 0));
+    ASSERT_EQ(size_t(4), mBC->get("abcd", 4, nullptr, 0));
 }
 
 TEST_F(BlobCacheTest, MultipleSetsCacheLatestValue) {
@@ -169,7 +169,7 @@
     }
 
     mBC->set(key, MAX_KEY_SIZE, buf, MAX_VALUE_SIZE);
-    ASSERT_EQ(size_t(0), mBC->get(key, MAX_KEY_SIZE, NULL, 0));
+    ASSERT_EQ(size_t(0), mBC->get(key, MAX_KEY_SIZE, nullptr, 0));
 }
 
 TEST_F(BlobCacheTest, CacheMaxKeySizeSucceeds) {
@@ -219,7 +219,7 @@
     }
 
     mBC->set(key, MAX_KEY_SIZE, buf, bufSize);
-    ASSERT_EQ(size_t(bufSize), mBC->get(key, MAX_KEY_SIZE, NULL, 0));
+    ASSERT_EQ(size_t(bufSize), mBC->get(key, MAX_KEY_SIZE, nullptr, 0));
 }
 
 TEST_F(BlobCacheTest, CacheMinKeyAndValueSizeSucceeds) {
@@ -237,7 +237,7 @@
     int numCached = 0;
     for (int i = 0; i < 256; i++) {
         uint8_t k = i;
-        if (mBC->get(&k, 1, NULL, 0) == 1) {
+        if (mBC->get(&k, 1, nullptr, 0) == 1) {
             numCached++;
         }
     }
@@ -260,7 +260,7 @@
     int numCached = 0;
     for (int i = 0; i < maxEntries+1; i++) {
         uint8_t k = i;
-        if (mBC->get(&k, 1, NULL, 0) == 1) {
+        if (mBC->get(&k, 1, nullptr, 0) == 1) {
             numCached++;
         }
     }
diff --git a/opengl/libs/EGL/FileBlobCache.cpp b/opengl/libs/EGL/FileBlobCache.cpp
index 7923715..cc42ac7 100644
--- a/opengl/libs/EGL/FileBlobCache.cpp
+++ b/opengl/libs/EGL/FileBlobCache.cpp
@@ -77,7 +77,7 @@
             return;
         }
 
-        uint8_t* buf = reinterpret_cast<uint8_t*>(mmap(NULL, fileSize,
+        uint8_t* buf = reinterpret_cast<uint8_t*>(mmap(nullptr, fileSize,
                 PROT_READ, MAP_PRIVATE, fd, 0));
         if (buf == MAP_FAILED) {
             ALOGE("error mmaping cache file: %s (%d)", strerror(errno),
diff --git a/opengl/libs/EGL/Loader.cpp b/opengl/libs/EGL/Loader.cpp
index 91a3455..e954b4f 100644
--- a/opengl/libs/EGL/Loader.cpp
+++ b/opengl/libs/EGL/Loader.cpp
@@ -129,7 +129,7 @@
 {
     dso[0] = gles;
     for (size_t i=1 ; i<NELEM(dso) ; i++)
-        dso[i] = 0;
+        dso[i] = nullptr;
 }
 
 Loader::driver_t::~driver_t()
@@ -137,7 +137,7 @@
     for (size_t i=0 ; i<NELEM(dso) ; i++) {
         if (dso[i]) {
             dlclose(dso[i]);
-            dso[i] = 0;
+            dso[i] = nullptr;
         }
     }
 }
@@ -163,7 +163,7 @@
 // ----------------------------------------------------------------------------
 
 Loader::Loader()
-    : getProcAddress(NULL)
+    : getProcAddress(nullptr)
 {
 }
 
@@ -221,7 +221,7 @@
     ATRACE_CALL();
 
     void* dso;
-    driver_t* hnd = 0;
+    driver_t* hnd = nullptr;
 
     setEmulatorGlesValue();
 
@@ -272,11 +272,11 @@
         char const * name = *api;
         __eglMustCastToProperFunctionPointerType f =
             (__eglMustCastToProperFunctionPointerType)dlsym(dso, name);
-        if (f == NULL) {
+        if (f == nullptr) {
             // couldn't find the entry-point, use eglGetProcAddress()
             f = getProcAddress(name);
         }
-        if (f == NULL) {
+        if (f == nullptr) {
             // Try without the OES postfix
             ssize_t index = ssize_t(strlen(name)) - 3;
             if ((index>0 && (index<SIZE-1)) && (!strcmp(name+index, "OES"))) {
@@ -286,7 +286,7 @@
                 //ALOGD_IF(f, "found <%s> instead", scrap);
             }
         }
-        if (f == NULL) {
+        if (f == nullptr) {
             // Try with the OES postfix
             ssize_t index = ssize_t(strlen(name)) - 3;
             if (index>0 && strcmp(name+index, "OES")) {
@@ -295,7 +295,7 @@
                 //ALOGD_IF(f, "found <%s> instead", scrap);
             }
         }
-        if (f == NULL) {
+        if (f == nullptr) {
             //ALOGD("%s", name);
             f = (__eglMustCastToProperFunctionPointerType)gl_unimplemented;
 
@@ -406,9 +406,9 @@
             }
 
             DIR* d = opendir(search);
-            if (d != NULL) {
+            if (d != nullptr) {
                 struct dirent* e;
-                while ((e = readdir(d)) != NULL) {
+                while ((e = readdir(d)) != nullptr) {
                     if (e->d_type == DT_DIR) {
                         continue;
                     }
@@ -434,7 +434,7 @@
     std::string absolutePath = MatchFile::find(kind);
     if (absolutePath.empty()) {
         // this happens often, we don't want to log an error
-        return 0;
+        return nullptr;
     }
     const char* const driver_absolute_path = absolutePath.c_str();
 
@@ -444,10 +444,10 @@
     // sphal namespace.
     void* dso = do_android_load_sphal_library(driver_absolute_path,
                                               RTLD_NOW | RTLD_LOCAL);
-    if (dso == 0) {
+    if (dso == nullptr) {
         const char* err = dlerror();
         ALOGE("load_driver(%s): %s", driver_absolute_path, err ? err : "unknown");
-        return 0;
+        return nullptr;
     }
 
     ALOGD("loaded %s", driver_absolute_path);
@@ -495,7 +495,7 @@
     if (!dso) {
         dso = load_system_driver(kind);
         if (!dso)
-            return NULL;
+            return nullptr;
     }
 
     if (mask & EGL) {
@@ -512,11 +512,11 @@
             char const * name = *api;
             __eglMustCastToProperFunctionPointerType f =
                 (__eglMustCastToProperFunctionPointerType)dlsym(dso, name);
-            if (f == NULL) {
+            if (f == nullptr) {
                 // couldn't find the entry-point, use eglGetProcAddress()
                 f = getProcAddress(name);
-                if (f == NULL) {
-                    f = (__eglMustCastToProperFunctionPointerType)0;
+                if (f == nullptr) {
+                    f = (__eglMustCastToProperFunctionPointerType)nullptr;
                 }
             }
             *curr++ = f;
diff --git a/opengl/libs/EGL/egl.cpp b/opengl/libs/EGL/egl.cpp
index f53cf3f..e292b80 100644
--- a/opengl/libs/EGL/egl.cpp
+++ b/opengl/libs/EGL/egl.cpp
@@ -89,22 +89,22 @@
 egl_display_ptr validate_display(EGLDisplay dpy) {
     egl_display_ptr dp = get_display(dpy);
     if (!dp)
-        return setError(EGL_BAD_DISPLAY, egl_display_ptr(NULL));
+        return setError(EGL_BAD_DISPLAY, egl_display_ptr(nullptr));
     if (!dp->isReady())
-        return setError(EGL_NOT_INITIALIZED, egl_display_ptr(NULL));
+        return setError(EGL_NOT_INITIALIZED, egl_display_ptr(nullptr));
 
     return dp;
 }
 
 egl_display_ptr validate_display_connection(EGLDisplay dpy,
         egl_connection_t*& cnx) {
-    cnx = NULL;
+    cnx = nullptr;
     egl_display_ptr dp = validate_display(dpy);
     if (!dp)
         return dp;
     cnx = &gEGLImpl;
-    if (cnx->dso == 0) {
-        return setError(EGL_BAD_CONFIG, egl_display_ptr(NULL));
+    if (cnx->dso == nullptr) {
+        return setError(EGL_BAD_CONFIG, egl_display_ptr(nullptr));
     }
     return dp;
 }
@@ -117,14 +117,14 @@
 
     EGLContext context = egl_tls_t::getContext();
     if (context == EGL_NO_CONTEXT)
-        return NULL;
+        return nullptr;
 
     egl_context_t const * const c = get_context(context);
-    if (c == NULL) // this should never happen, by construction
-        return NULL;
+    if (c == nullptr) // this should never happen, by construction
+        return nullptr;
 
     if (name != GL_EXTENSIONS)
-        return NULL;
+        return nullptr;
 
     return (const GLubyte *)c->gl_extensions.c_str();
 }
@@ -135,19 +135,19 @@
 
     EGLContext context = egl_tls_t::getContext();
     if (context == EGL_NO_CONTEXT)
-        return NULL;
+        return nullptr;
 
     egl_context_t const * const c = get_context(context);
-    if (c == NULL) // this should never happen, by construction
-        return NULL;
+    if (c == nullptr) // this should never happen, by construction
+        return nullptr;
 
     if (name != GL_EXTENSIONS)
-        return NULL;
+        return nullptr;
 
     // if index is out of bounds, assume it will be in the default
     // implementation too, so we don't have to generate a GL error here
     if (index >= c->tokenized_gl_extensions.size())
-        return NULL;
+        return nullptr;
 
     return (const GLubyte *)c->tokenized_gl_extensions[index].c_str();
 }
@@ -161,7 +161,7 @@
         return -1;
 
     egl_context_t const * const c = get_context(context);
-    if (c == NULL) // this should never happen, by construction
+    if (c == nullptr) // this should never happen, by construction
         return -1;
 
     return (GLint)c->tokenized_gl_extensions.size();
@@ -184,7 +184,7 @@
 
     // dynamically load our EGL implementation
     egl_connection_t* cnx = &gEGLImpl;
-    if (cnx->dso == 0) {
+    if (cnx->dso == nullptr) {
         cnx->hooks[egl_connection_t::GLESv1_INDEX] =
                 &gHooks[egl_connection_t::GLESv1_INDEX];
         cnx->hooks[egl_connection_t::GLESv2_INDEX] =
@@ -249,12 +249,12 @@
 
 char const * const gl_names[] = {
     #include "../entries.in"
-    NULL
+    nullptr
 };
 
 char const * const egl_names[] = {
     #include "egl_entries.in"
-    NULL
+    nullptr
 };
 
 #undef GL_ENTRY
diff --git a/opengl/libs/EGL/eglApi.cpp b/opengl/libs/EGL/eglApi.cpp
index f73967c..86430b0 100644
--- a/opengl/libs/EGL/eglApi.cpp
+++ b/opengl/libs/EGL/eglApi.cpp
@@ -257,7 +257,7 @@
             return map[i].address;
         }
     }
-    return NULL;
+    return nullptr;
 }
 
 // ----------------------------------------------------------------------------
@@ -340,7 +340,7 @@
     const egl_display_ptr dp = validate_display(dpy);
     if (!dp) return EGL_FALSE;
 
-    if (num_config==0) {
+    if (num_config==nullptr) {
         return setError(EGL_BAD_PARAMETER, (EGLBoolean)EGL_FALSE);
     }
 
@@ -365,7 +365,7 @@
     const egl_display_ptr dp = validate_display(dpy);
     if (!dp) return EGL_FALSE;
 
-    if (num_config==0) {
+    if (num_config==nullptr) {
         return setError(EGL_BAD_PARAMETER, (EGLBoolean)EGL_FALSE);
     }
 
@@ -384,8 +384,8 @@
 
                 // 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;
+                const EGLint *attribRendererable = nullptr;
+                const EGLint *attribCaveat = nullptr;
 
                 // Count the number of attributes and look for
                 // EGL_RENDERABLE_TYPE and EGL_CONFIG_CAVEAT
@@ -440,7 +440,7 @@
 {
     clearError();
 
-    egl_connection_t* cnx = NULL;
+    egl_connection_t* cnx = nullptr;
     const egl_display_ptr dp = validate_display_connection(dpy, cnx);
     if (!dp) return EGL_FALSE;
 
@@ -698,7 +698,7 @@
     const EGLint *origAttribList = attrib_list;
     clearError();
 
-    egl_connection_t* cnx = NULL;
+    egl_connection_t* cnx = nullptr;
     egl_display_ptr dp = validate_display_connection(dpy, cnx);
     if (dp) {
         if (!window) {
@@ -781,7 +781,7 @@
 {
     clearError();
 
-    egl_connection_t* cnx = NULL;
+    egl_connection_t* cnx = nullptr;
     egl_display_ptr dp = validate_display_connection(dpy, cnx);
     if (dp) {
         EGLDisplay iDpy = dp->disp.dpy;
@@ -802,7 +802,7 @@
                 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,
+                    new egl_surface_t(dp.get(), config, nullptr, surface,
                                       getReportedColorSpace(colorSpace), cnx);
             return s;
         }
@@ -815,7 +815,7 @@
 {
     clearError();
 
-    egl_connection_t* cnx = NULL;
+    egl_connection_t* cnx = nullptr;
     egl_display_ptr dp = validate_display_connection(dpy, cnx);
     if (dp) {
         EGLDisplay iDpy = dp->disp.dpy;
@@ -836,7 +836,7 @@
                 dp->disp.dpy, config, attrib_list);
         if (surface != EGL_NO_SURFACE) {
             egl_surface_t* s =
-                    new egl_surface_t(dp.get(), config, NULL, surface,
+                    new egl_surface_t(dp.get(), config, nullptr, surface,
                                       getReportedColorSpace(colorSpace), cnx);
             return s;
         }
@@ -910,7 +910,7 @@
 {
     clearError();
 
-    egl_connection_t* cnx = NULL;
+    egl_connection_t* cnx = nullptr;
     const egl_display_ptr dp = validate_display_connection(dpy, cnx);
     if (dp) {
         if (share_list != EGL_NO_CONTEXT) {
@@ -999,9 +999,9 @@
     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;
+    egl_context_t       * c = nullptr;
+    egl_surface_t const * d = nullptr;
+    egl_surface_t const * r = nullptr;
 
     // these are the current objects structs
     egl_context_t * cur_c = get_context(getContext());
@@ -1015,7 +1015,7 @@
             // calling eglMakeCurrent( ..., !=0, !=0, EGL_NO_CONTEXT);
             return setError(EGL_BAD_MATCH, (EGLBoolean)EGL_FALSE);
         }
-        if (cur_c == NULL) {
+        if (cur_c == nullptr) {
             // no current context
             // not an error, there is just no current context.
             return EGL_TRUE;
@@ -1163,7 +1163,7 @@
 static __eglMustCastToProperFunctionPointerType findBuiltinWrapper(
         const char* procname) {
     const egl_connection_t* cnx = &gEGLImpl;
-    void* proc = NULL;
+    void* proc = nullptr;
 
     proc = dlsym(cnx->libEgl, procname);
     if (proc) return (__eglMustCastToProperFunctionPointerType)proc;
@@ -1174,7 +1174,7 @@
     proc = dlsym(cnx->libGles1, procname);
     if (proc) return (__eglMustCastToProperFunctionPointerType)proc;
 
-    return NULL;
+    return nullptr;
 }
 
 __eglMustCastToProperFunctionPointerType eglGetProcAddress(const char *procname)
@@ -1187,11 +1187,11 @@
 
     if (egl_init_drivers() == EGL_FALSE) {
         setError(EGL_BAD_PARAMETER, NULL);
-        return  NULL;
+        return  nullptr;
     }
 
     if (FILTER_EXTENSIONS(procname)) {
-        return NULL;
+        return nullptr;
     }
 
     __eglMustCastToProperFunctionPointerType addr;
@@ -1346,7 +1346,7 @@
     egl_surface_t* const s = get_surface(draw);
 
     if (CC_UNLIKELY(dp->traceGpuCompletion)) {
-        EGLSyncKHR sync = eglCreateSyncKHR(dpy, EGL_SYNC_FENCE_KHR, NULL);
+        EGLSyncKHR sync = eglCreateSyncKHR(dpy, EGL_SYNC_FENCE_KHR, nullptr);
         if (sync != EGL_NO_SYNC_KHR) {
             FrameCompletionThread::queueSync(sync);
         }
@@ -1397,7 +1397,7 @@
 
 EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface surface)
 {
-    return eglSwapBuffersWithDamageKHR(dpy, surface, NULL, 0);
+    return eglSwapBuffersWithDamageKHR(dpy, surface, nullptr, 0);
 }
 
 EGLBoolean eglCopyBuffers(  EGLDisplay dpy, EGLSurface surface,
@@ -1428,10 +1428,10 @@
     // If we want to support EGL_EXT_client_extensions later, we can return
     // the client extension string here instead.
     if (dpy == EGL_NO_DISPLAY && name == EGL_EXTENSIONS)
-        return setErrorQuiet(EGL_BAD_DISPLAY, (const char*)0);
+        return setErrorQuiet(EGL_BAD_DISPLAY, (const char*)nullptr);
 
     const egl_display_ptr dp = validate_display(dpy);
-    if (!dp) return (const char *) NULL;
+    if (!dp) return (const char *) nullptr;
 
     switch (name) {
         case EGL_VENDOR:
@@ -1445,7 +1445,7 @@
         default:
             break;
     }
-    return setError(EGL_BAD_PARAMETER, (const char *)0);
+    return setError(EGL_BAD_PARAMETER, (const char *)nullptr);
 }
 
 extern "C" EGLAPI const char* eglQueryStringImplementationANDROID(EGLDisplay dpy, EGLint name)
@@ -1453,7 +1453,7 @@
     clearError();
 
     const egl_display_ptr dp = validate_display(dpy);
-    if (!dp) return (const char *) NULL;
+    if (!dp) return (const char *) nullptr;
 
     switch (name) {
         case EGL_VENDOR:
@@ -1467,7 +1467,7 @@
         default:
             break;
     }
-    return setError(EGL_BAD_PARAMETER, (const char *)0);
+    return setError(EGL_BAD_PARAMETER, (const char *)nullptr);
 }
 
 // ----------------------------------------------------------------------------
@@ -1649,7 +1649,7 @@
 {
     clearError();
 
-    egl_connection_t* cnx = NULL;
+    egl_connection_t* cnx = nullptr;
     const egl_display_ptr dp = validate_display_connection(dpy, cnx);
     if (!dp) return EGL_FALSE;
     if (cnx->egl.eglCreatePbufferFromClientBuffer) {
@@ -1953,7 +1953,7 @@
         EGLSurface surface = cnx->egl.eglCreateStreamProducerSurfaceKHR(
                 dp->disp.dpy, config, stream, attrib_list);
         if (surface != EGL_NO_SURFACE) {
-            egl_surface_t* s = new egl_surface_t(dp.get(), config, NULL, surface,
+            egl_surface_t* s = new egl_surface_t(dp.get(), config, nullptr, surface,
                                                  EGL_GL_COLORSPACE_LINEAR_KHR, cnx);
             return s;
         }
@@ -2109,10 +2109,10 @@
     // this function cannot be implemented when this libEGL is built for
     // vendors.
 #ifndef __ANDROID_VNDK__
-    if (!buffer) return setError(EGL_BAD_PARAMETER, (EGLClientBuffer)0);
+    if (!buffer) return setError(EGL_BAD_PARAMETER, (EGLClientBuffer) nullptr);
     return const_cast<ANativeWindowBuffer *>(AHardwareBuffer_to_ANativeWindowBuffer(buffer));
 #else
-    return setError(EGL_BAD_PARAMETER, (EGLClientBuffer)0);
+    return setError(EGL_BAD_PARAMETER, (EGLClientBuffer) nullptr);
 #endif
 }
 
diff --git a/opengl/libs/EGL/egl_cache.cpp b/opengl/libs/EGL/egl_cache.cpp
index ec548f3..bcf4961 100644
--- a/opengl/libs/EGL/egl_cache.cpp
+++ b/opengl/libs/EGL/egl_cache.cpp
@@ -95,7 +95,7 @@
                     reinterpret_cast<PFNEGLSETBLOBCACHEFUNCSANDROIDPROC>(
                             cnx->egl.eglGetProcAddress(
                                     "eglSetBlobCacheFuncsANDROID"));
-            if (eglSetBlobCacheFuncsANDROID == NULL) {
+            if (eglSetBlobCacheFuncsANDROID == nullptr) {
                 ALOGE("EGL_ANDROID_blob_cache advertised, "
                         "but unable to get eglSetBlobCacheFuncsANDROID");
                 return;
@@ -119,7 +119,7 @@
     if (mBlobCache) {
         mBlobCache->writeToFile();
     }
-    mBlobCache = NULL;
+    mBlobCache = nullptr;
 }
 
 void egl_cache_t::setBlob(const void* key, EGLsizeiANDROID keySize,
diff --git a/opengl/libs/EGL/egl_display.cpp b/opengl/libs/EGL/egl_display.cpp
index 2aec249..0235171 100644
--- a/opengl/libs/EGL/egl_display.cpp
+++ b/opengl/libs/EGL/egl_display.cpp
@@ -116,7 +116,7 @@
 
 EGLDisplay egl_display_t::getFromNativeDisplay(EGLNativeDisplayType disp) {
     if (uintptr_t(disp) >= NUM_DISPLAYS)
-        return NULL;
+        return nullptr;
 
     return sDisplay[uintptr_t(disp)].getDisplay(disp);
 }
@@ -135,7 +135,7 @@
         disp.dpy = dpy;
         if (dpy == EGL_NO_DISPLAY) {
             loader.close(cnx->dso);
-            cnx->dso = NULL;
+            cnx->dso = nullptr;
         }
     }
 
@@ -148,9 +148,9 @@
         std::unique_lock<std::mutex> _l(refLock);
         refs++;
         if (refs > 1) {
-            if (major != NULL)
+            if (major != nullptr)
                 *major = VERSION_MAJOR;
-            if (minor != NULL)
+            if (minor != nullptr)
                 *minor = VERSION_MINOR;
             while(!eglIsInitialized) {
                 refCond.wait(_l);
@@ -268,9 +268,9 @@
             traceGpuCompletion = true;
         }
 
-        if (major != NULL)
+        if (major != nullptr)
             *major = VERSION_MAJOR;
-        if (minor != NULL)
+        if (minor != nullptr)
             *minor = VERSION_MINOR;
     }
 
@@ -361,8 +361,8 @@
     // by construction, these are either 0 or valid (possibly terminated)
     // it should be impossible for these to be invalid
     ContextRef _cur_c(cur_c);
-    SurfaceRef _cur_r(cur_c ? get_surface(cur_c->read) : NULL);
-    SurfaceRef _cur_d(cur_c ? get_surface(cur_c->draw) : NULL);
+    SurfaceRef _cur_r(cur_c ? get_surface(cur_c->read) : nullptr);
+    SurfaceRef _cur_d(cur_c ? get_surface(cur_c->draw) : nullptr);
 
     { // scope for the lock
         std::lock_guard<std::mutex> _l(lock);
@@ -387,8 +387,8 @@
     // by construction, these are either 0 or valid (possibly terminated)
     // it should be impossible for these to be invalid
     ContextRef _cur_c(cur_c);
-    SurfaceRef _cur_r(cur_c ? get_surface(cur_c->read) : NULL);
-    SurfaceRef _cur_d(cur_c ? get_surface(cur_c->draw) : NULL);
+    SurfaceRef _cur_r(cur_c ? get_surface(cur_c->read) : nullptr);
+    SurfaceRef _cur_d(cur_c ? get_surface(cur_c->draw) : nullptr);
 
     { // scope for the lock
         std::lock_guard<std::mutex> _l(lock);
diff --git a/opengl/libs/EGL/egl_display.h b/opengl/libs/EGL/egl_display.h
index 79a9f08..f764028 100644
--- a/opengl/libs/EGL/egl_display.h
+++ b/opengl/libs/EGL/egl_display.h
@@ -160,7 +160,7 @@
     const egl_display_t* get() const { return mDpy; }
           egl_display_t* get()       { return mDpy; }
 
-    operator bool() const { return mDpy != NULL; }
+    operator bool() const { return mDpy != nullptr; }
 
 private:
     egl_display_t* mDpy;
diff --git a/opengl/libs/EGL/egl_object.cpp b/opengl/libs/EGL/egl_object.cpp
index f879254..ff4fe2d 100644
--- a/opengl/libs/EGL/egl_object.cpp
+++ b/opengl/libs/EGL/egl_object.cpp
@@ -81,14 +81,14 @@
 }
 
 egl_surface_t::~egl_surface_t() {
-    if (win != NULL) {
+    if (win != nullptr) {
         disconnect();
         win->decStrong(this);
     }
 }
 
 void egl_surface_t::disconnect() {
-    if (win != NULL && connected) {
+    if (win != nullptr && connected) {
         native_window_set_buffers_format(win, 0);
         if (native_window_api_disconnect(win, NATIVE_WINDOW_API_EGL)) {
             ALOGW("EGLNativeWindowType %p disconnect failed", win);
@@ -281,12 +281,12 @@
 egl_context_t::egl_context_t(EGLDisplay dpy, EGLContext context, EGLConfig config,
         egl_connection_t const* cnx, int version) :
     egl_object_t(get_display_nowake(dpy)), dpy(dpy), context(context),
-            config(config), read(0), draw(0), cnx(cnx), version(version) {
+            config(config), read(nullptr), draw(nullptr), cnx(cnx), version(version) {
 }
 
 void egl_context_t::onLooseCurrent() {
-    read = NULL;
-    draw = NULL;
+    read = nullptr;
+    draw = nullptr;
 }
 
 void egl_context_t::onMakeCurrent(EGLSurface draw, EGLSurface read) {
diff --git a/opengl/libs/EGL/egl_object.h b/opengl/libs/EGL/egl_object.h
index 4e1de5c..fb2bdf4 100644
--- a/opengl/libs/EGL/egl_object.h
+++ b/opengl/libs/EGL/egl_object.h
@@ -67,7 +67,7 @@
     public:
         ~LocalRef();
         explicit LocalRef(egl_object_t* rhs);
-        explicit LocalRef(egl_display_t const* display, T o) : ref(0) {
+        explicit LocalRef(egl_display_t const* display, T o) : ref(nullptr) {
             egl_object_t* native = reinterpret_cast<N*>(o);
             if (o && egl_object_t::get(display, native)) {
                 ref = native;
diff --git a/opengl/libs/EGL/egl_tls.cpp b/opengl/libs/EGL/egl_tls.cpp
index 297a8a3..b57c357 100644
--- a/opengl/libs/EGL/egl_tls.cpp
+++ b/opengl/libs/EGL/egl_tls.cpp
@@ -28,7 +28,7 @@
 pthread_once_t egl_tls_t::sOnceKey = PTHREAD_ONCE_INIT;
 
 egl_tls_t::egl_tls_t()
-    : error(EGL_SUCCESS), ctx(0), logCallWithNoContext(true) {
+    : error(EGL_SUCCESS), ctx(nullptr), logCallWithNoContext(true) {
 }
 
 const char *egl_tls_t::egl_strerror(EGLint err) {
@@ -117,7 +117,7 @@
 
 egl_tls_t* egl_tls_t::getTLS() {
     egl_tls_t* tls = (egl_tls_t*)pthread_getspecific(sKey);
-    if (tls == 0) {
+    if (tls == nullptr) {
         tls = new egl_tls_t;
         pthread_setspecific(sKey, tls);
     }
@@ -128,7 +128,7 @@
     if (sKey != TLS_KEY_NOT_INITIALIZED) {
         egl_tls_t* tls = (egl_tls_t*)pthread_getspecific(sKey);
         if (tls) {
-            pthread_setspecific(sKey, 0);
+            pthread_setspecific(sKey, nullptr);
             delete tls;
         }
     }
diff --git a/opengl/libs/EGL/egldefs.h b/opengl/libs/EGL/egldefs.h
index 9858276..299d8f7 100644
--- a/opengl/libs/EGL/egldefs.h
+++ b/opengl/libs/EGL/egldefs.h
@@ -37,7 +37,7 @@
         GLESv2_INDEX = 1
     };
 
-    inline egl_connection_t() : dso(0) { }
+    inline egl_connection_t() : dso(nullptr) { }
     void *              dso;
     gl_hooks_t *        hooks[2];
     EGLint              major;
diff --git a/opengl/tests/lib/WindowSurface.cpp b/opengl/tests/lib/WindowSurface.cpp
index 2b76279..b06422a 100644
--- a/opengl/tests/lib/WindowSurface.cpp
+++ b/opengl/tests/lib/WindowSurface.cpp
@@ -57,7 +57,7 @@
     sp<SurfaceControl> sc = surfaceComposerClient->createSurface(
             String8("Benchmark"), width, height,
             PIXEL_FORMAT_RGBX_8888, ISurfaceComposerClient::eOpaque);
-    if (sc == NULL || !sc->isValid()) {
+    if (sc == nullptr || !sc->isValid()) {
         fprintf(stderr, "Failed to create SurfaceControl\n");
         return;
     }
diff --git a/opengl/tests/lib/glTestLib.cpp b/opengl/tests/lib/glTestLib.cpp
index 213dffd..290d7a0 100644
--- a/opengl/tests/lib/glTestLib.cpp
+++ b/opengl/tests/lib/glTestLib.cpp
@@ -37,7 +37,7 @@
 {
     const char *v = (const char *) glGetString(s);
 
-    if (v == NULL) {
+    if (v == nullptr) {
         testPrintI("GL %s unknown", name);
     } else {
         testPrintI("GL %s = %s", name, v);
diff --git a/opengl/tests/lib/include/EGLUtils.h b/opengl/tests/lib/include/EGLUtils.h
index 9dc6bcf..eb9571d 100644
--- a/opengl/tests/lib/include/EGLUtils.h
+++ b/opengl/tests/lib/include/EGLUtils.h
@@ -100,11 +100,11 @@
     if (!attrs)
         return BAD_VALUE;
 
-    if (outConfig == NULL)
+    if (outConfig == nullptr)
         return BAD_VALUE;
 
     // Get all the "potential match" configs...
-    if (eglGetConfigs(dpy, NULL, 0, &numConfigs) == EGL_FALSE)
+    if (eglGetConfigs(dpy, nullptr, 0, &numConfigs) == EGL_FALSE)
         return BAD_VALUE;
 
     std::vector<EGLConfig> configs(numConfigs);
@@ -113,7 +113,7 @@
     }
 
     int i;
-    EGLConfig config = NULL;
+    EGLConfig config = nullptr;
     for (i=0 ; i<n ; i++) {
         EGLint nativeVisualId = 0;
         eglGetConfigAttrib(dpy, configs[i], EGL_NATIVE_VISUAL_ID, &nativeVisualId);
@@ -243,7 +243,7 @@
 
 bool EGLUtils::printEGLConfigurations(EGLDisplay dpy, String8& msg) {
     EGLint numConfig = 0;
-    EGLint returnVal = eglGetConfigs(dpy, NULL, 0, &numConfig);
+    EGLint returnVal = eglGetConfigs(dpy, nullptr, 0, &numConfig);
     msg.append(checkEglError("eglGetConfigs", returnVal));
     if (!returnVal) {
         return false;