diff --git a/opengl/tests/angeles/Android.mk b/opengl/tests/angeles/Android.mk
index e193483..d0c3221 100644
--- a/opengl/tests/angeles/Android.mk
+++ b/opengl/tests/angeles/Android.mk
@@ -2,7 +2,7 @@
 
 LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)
-LOCAL_SRC_FILES:= app-linux.c demo.c.arm
+LOCAL_SRC_FILES:= app-linux.cpp demo.c.arm
 LOCAL_SHARED_LIBRARIES := libEGL libGLESv1_CM libui
 LOCAL_MODULE:= angeles
 LOCAL_MODULE_TAGS := optional
diff --git a/opengl/tests/angeles/app-linux.c b/opengl/tests/angeles/app-linux.cpp
similarity index 74%
rename from opengl/tests/angeles/app-linux.c
rename to opengl/tests/angeles/app-linux.cpp
index 6be4876..9c71693 100644
--- a/opengl/tests/angeles/app-linux.c
+++ b/opengl/tests/angeles/app-linux.cpp
@@ -52,6 +52,11 @@
 #include <EGL/egl.h>
 #include <GLES/gl.h>
 
+#include <ui/FramebufferNativeWindow.h>
+#include <ui/EGLUtils.h>
+
+using namespace android;
+
 #include "app.h"
 
 
@@ -115,76 +120,32 @@
 
 static int initGraphics()
 {
-    EGLint s_configAttribs[] = {
-         EGL_RED_SIZE,       5,
-         EGL_GREEN_SIZE,     6,
-         EGL_BLUE_SIZE,      5,
- #if 1
-         EGL_DEPTH_SIZE,     16,
-         EGL_STENCIL_SIZE,   0,
- #else
-         EGL_ALPHA_SIZE,     EGL_DONT_CARE,
-         EGL_DEPTH_SIZE,     EGL_DONT_CARE,
-         EGL_STENCIL_SIZE,   EGL_DONT_CARE,
-         EGL_SURFACE_TYPE,   EGL_DONT_CARE,
- #endif
+    EGLint configAttribs[] = {
+         EGL_DEPTH_SIZE, 16,
          EGL_NONE
      };
      
-     EGLint numConfigs = -1;
-     EGLint n = 0;
      EGLint majorVersion;
      EGLint minorVersion;
-     EGLConfig config;
      EGLContext context;
+     EGLConfig config;
      EGLSurface surface;
-     
+     EGLint w, h;
      EGLDisplay dpy;
 
      dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
-     egl_error("eglGetDisplay");
-     fprintf(stderr,"dpy = 0x%08x\n", (unsigned) dpy);
-     
      eglInitialize(dpy, &majorVersion, &minorVersion);
-     egl_error("eglInitialize");
-
-     eglGetConfigs(dpy, NULL, 0, &numConfigs);
-
-     // Get all the "potential match" configs...
-     EGLConfig* const configs = malloc(sizeof(EGLConfig)*numConfigs);
-     eglChooseConfig(dpy, s_configAttribs, configs, numConfigs, &n);
-     config = configs[0];
-     if (n > 1) {
-         // if there is more than one candidate, go through the list
-         // and pick one that matches our framebuffer format
-         int fbSzA = 0; // should not hardcode
-         int fbSzR = 5; // should not hardcode
-         int fbSzG = 6; // should not hardcode
-         int fbSzB = 5; // should not hardcode
-         int i;
-         for (i=0 ; i<n ; i++) {
-             EGLint r,g,b,a;
-             eglGetConfigAttrib(dpy, configs[i], EGL_RED_SIZE,   &r);
-             eglGetConfigAttrib(dpy, configs[i], EGL_GREEN_SIZE, &g);
-             eglGetConfigAttrib(dpy, configs[i], EGL_BLUE_SIZE,  &b);
-             eglGetConfigAttrib(dpy, configs[i], EGL_ALPHA_SIZE, &a);
-             if (fbSzA == a && fbSzR == r && fbSzG == g && fbSzB  == b) {
-                 config = configs[i];
-                 break;
-             }
-         }
+          
+     EGLNativeWindowType window = android_createDisplaySurface();
+     
+     status_t err = EGLUtils::selectConfigForNativeWindow(
+             dpy, configAttribs, window, &config);
+     if (err) {
+         fprintf(stderr, "couldn't find an EGLConfig matching the screen format\n");
+         return 0;
      }
-     free(configs);
-     
-     
-     //eglGetConfigs(dpy, NULL, 0, &numConfigs);
-     //egl_error("eglGetConfigs");
-     //fprintf(stderr,"num configs %d\n", numConfigs);     
-     //eglChooseConfig(dpy, s_configAttribs, &config, 1, &numConfigs);
-     //egl_error("eglChooseConfig");
 
-     surface = eglCreateWindowSurface(dpy, config,
-             android_createDisplaySurface(), NULL);
+     surface = eglCreateWindowSurface(dpy, config, window, NULL);
      egl_error("eglCreateWindowSurface");
 
      fprintf(stderr,"surface = %p\n", surface);
diff --git a/opengl/tests/fillrate/fillrate.cpp b/opengl/tests/fillrate/fillrate.cpp
index 108a87c..4ffbc8b 100644
--- a/opengl/tests/fillrate/fillrate.cpp
+++ b/opengl/tests/fillrate/fillrate.cpp
@@ -26,6 +26,7 @@
 
 #include <utils/StopWatch.h>
 #include <ui/FramebufferNativeWindow.h>
+#include <ui/EGLUtils.h>
 
 using namespace android;
 
@@ -36,48 +37,27 @@
          EGL_NONE
      };
      
-     EGLint numConfigs = -1, n=0;
      EGLint majorVersion;
      EGLint minorVersion;
-     EGLConfig config;
      EGLContext context;
+     EGLConfig config;
      EGLSurface surface;
      EGLint w, h;
-     
      EGLDisplay dpy;
 
      dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
      eglInitialize(dpy, &majorVersion, &minorVersion);
+          
+     EGLNativeWindowType window = android_createDisplaySurface();
      
-     // Get all the "potential match" configs...
-     eglGetConfigs(dpy, NULL, 0, &numConfigs);
-     EGLConfig* const configs = (EGLConfig*)malloc(sizeof(EGLConfig)*numConfigs);
-     eglChooseConfig(dpy, configAttribs, configs, numConfigs, &n);
-     config = configs[0];
-     if (n > 1) {
-         // if there is more than one candidate, go through the list
-         // and pick one that matches our framebuffer format
-         int fbSzA = 0; // should not hardcode
-         int fbSzR = 5; // should not hardcode
-         int fbSzG = 6; // should not hardcode
-         int fbSzB = 5; // should not hardcode
-         int i;
-         for (i=0 ; i<n ; i++) {
-             EGLint r,g,b,a;
-             eglGetConfigAttrib(dpy, configs[i], EGL_RED_SIZE,   &r);
-             eglGetConfigAttrib(dpy, configs[i], EGL_GREEN_SIZE, &g);
-             eglGetConfigAttrib(dpy, configs[i], EGL_BLUE_SIZE,  &b);
-             eglGetConfigAttrib(dpy, configs[i], EGL_ALPHA_SIZE, &a);
-             if (fbSzA == a && fbSzR == r && fbSzG == g && fbSzB  == b) {
-                 config = configs[i];
-                 break;
-             }
-         }
+     status_t err = EGLUtils::selectConfigForNativeWindow(
+             dpy, configAttribs, window, &config);
+     if (err) {
+         fprintf(stderr, "couldn't find an EGLConfig matching the screen format\n");
+         return 0;
      }
-     free(configs);
-     
-     surface = eglCreateWindowSurface(dpy, config,
-             android_createDisplaySurface(), NULL);
+
+     surface = eglCreateWindowSurface(dpy, config, window, NULL);
      context = eglCreateContext(dpy, config, NULL, NULL);
      eglMakeCurrent(dpy, surface, surface, context);   
      eglQuerySurface(dpy, surface, EGL_WIDTH, &w);
diff --git a/opengl/tests/filter/Android.mk b/opengl/tests/filter/Android.mk
index 31b7d9a..a254127 100644
--- a/opengl/tests/filter/Android.mk
+++ b/opengl/tests/filter/Android.mk
@@ -2,7 +2,7 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= \
-	filter.c
+	filter.cpp
 
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
@@ -14,4 +14,6 @@
 
 LOCAL_MODULE_TAGS := optional
 
+LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES
+
 include $(BUILD_EXECUTABLE)
diff --git a/opengl/tests/filter/filter.c b/opengl/tests/filter/filter.cpp
similarity index 90%
rename from opengl/tests/filter/filter.c
rename to opengl/tests/filter/filter.cpp
index de97119..e82b12d 100644
--- a/opengl/tests/filter/filter.c
+++ b/opengl/tests/filter/filter.cpp
@@ -5,6 +5,11 @@
 #include <GLES/gl.h>
 #include <GLES/glext.h>
 
+#include <ui/FramebufferNativeWindow.h>
+#include <ui/EGLUtils.h>
+
+using namespace android;
+
 int main(int argc, char** argv)
 {
     if (argc!=2 && argc!=3) {
@@ -34,12 +39,14 @@
 
      dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
      eglInitialize(dpy, &majorVersion, &minorVersion);
-     eglChooseConfig(dpy, s_configAttribs, &config, 1, &numConfigs);
      if (!usePbuffer) {
-         surface = eglCreateWindowSurface(dpy, config,
-                 android_createDisplaySurface(), NULL);
+         EGLNativeWindowType window = android_createDisplaySurface();
+         surface = eglCreateWindowSurface(dpy, config, window, NULL);
+         EGLUtils::selectConfigForNativeWindow(
+                 dpy, s_configAttribs, window, &config);
      } else {
          printf("using pbuffer\n");
+         eglChooseConfig(dpy, s_configAttribs, &config, 1, &numConfigs);
          EGLint attribs[] = { EGL_WIDTH, 320, EGL_HEIGHT, 480, EGL_NONE };
          surface = eglCreatePbufferSurface(dpy, config, attribs);
          if (surface == EGL_NO_SURFACE) {
diff --git a/opengl/tests/finish/Android.mk b/opengl/tests/finish/Android.mk
index 8b46cd7..5620814 100644
--- a/opengl/tests/finish/Android.mk
+++ b/opengl/tests/finish/Android.mk
@@ -2,7 +2,7 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= \
-	finish.c
+	finish.cpp
 
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
@@ -14,4 +14,6 @@
 
 LOCAL_MODULE_TAGS := optional
 
+LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES
+
 include $(BUILD_EXECUTABLE)
diff --git a/opengl/tests/finish/finish.c b/opengl/tests/finish/finish.cpp
similarity index 90%
rename from opengl/tests/finish/finish.c
rename to opengl/tests/finish/finish.cpp
index 45fc758..b5b8142 100644
--- a/opengl/tests/finish/finish.c
+++ b/opengl/tests/finish/finish.cpp
@@ -24,39 +24,41 @@
 #include <GLES/gl.h>
 #include <GLES/glext.h>
 
+#include <utils/Timers.h>
 
-long long systemTime()
-{
-    struct timespec t;
-    t.tv_sec = t.tv_nsec = 0;
-    clock_gettime(CLOCK_MONOTONIC, &t);
-    return (long long)(t.tv_sec)*1000000000LL + t.tv_nsec;
-}
+#include <ui/FramebufferNativeWindow.h>
+#include <ui/EGLUtils.h>
+
+using namespace android;
 
 int main(int argc, char** argv)
 {
-    EGLint s_configAttribs[] = {
-         EGL_RED_SIZE,       5,
-         EGL_GREEN_SIZE,     6,
-         EGL_BLUE_SIZE,      5,
+    EGLint configAttribs[] = {
+         EGL_DEPTH_SIZE, 0,
          EGL_NONE
      };
      
-     EGLint numConfigs = -1;
      EGLint majorVersion;
      EGLint minorVersion;
-     EGLConfig config;
      EGLContext context;
+     EGLConfig config;
      EGLSurface surface;
      EGLint w, h;
-     
      EGLDisplay dpy;
 
      dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
      eglInitialize(dpy, &majorVersion, &minorVersion);
-     eglChooseConfig(dpy, s_configAttribs, &config, 1, &numConfigs);
-     surface = eglCreateWindowSurface(dpy, config, 
-             android_createDisplaySurface(), NULL);
+          
+     EGLNativeWindowType window = android_createDisplaySurface();
+     
+     status_t err = EGLUtils::selectConfigForNativeWindow(
+             dpy, configAttribs, window, &config);
+     if (err) {
+         fprintf(stderr, "couldn't find an EGLConfig matching the screen format\n");
+         return 0;
+     }
+
+     surface = eglCreateWindowSurface(dpy, config, window, NULL);
      context = eglCreateContext(dpy, config, NULL, NULL);
      eglMakeCurrent(dpy, surface, surface, context);   
      eglQuerySurface(dpy, surface, EGL_WIDTH, &w);
@@ -75,13 +77,13 @@
      long long now, t;
      int i;
 
-     char* texels = malloc(512*512*2);
+     char* texels = (char*)malloc(512*512*2);
      memset(texels,0xFF,512*512*2);
      
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
              512, 512, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, texels);
 
-     char* dst = malloc(320*480*2);
+     char* dst = (char*)malloc(320*480*2);
      memset(dst, 0, 320*480*2);
      printf("307200 bytes memcpy\n");
      for (i=0 ; i<4 ; i++) {
diff --git a/opengl/tests/textures/Android.mk b/opengl/tests/textures/Android.mk
index 8d5f56d..b2fa185 100644
--- a/opengl/tests/textures/Android.mk
+++ b/opengl/tests/textures/Android.mk
@@ -2,7 +2,7 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= \
-	textures.c
+	textures.cpp
 
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
@@ -14,4 +14,6 @@
 
 LOCAL_MODULE_TAGS := optional
 
+LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES
+
 include $(BUILD_EXECUTABLE)
diff --git a/opengl/tests/textures/textures.c b/opengl/tests/textures/textures.cpp
similarity index 70%
rename from opengl/tests/textures/textures.c
rename to opengl/tests/textures/textures.cpp
index d877e74..ee92e79 100644
--- a/opengl/tests/textures/textures.c
+++ b/opengl/tests/textures/textures.cpp
@@ -22,59 +22,39 @@
 #include <GLES/gl.h>
 #include <GLES/glext.h>
 
+#include <ui/FramebufferNativeWindow.h>
+#include <ui/EGLUtils.h>
+
+using namespace android;
+
 int main(int argc, char** argv)
 {
-    EGLint s_configAttribs[] = {
-         EGL_RED_SIZE,       5,
-         EGL_GREEN_SIZE,     6,
-         EGL_BLUE_SIZE,      5,
+    EGLint configAttribs[] = {
+         EGL_DEPTH_SIZE, 0,
          EGL_NONE
      };
      
-     EGLint numConfigs = -1, n=0;
      EGLint majorVersion;
      EGLint minorVersion;
-     EGLConfig config;
      EGLContext context;
+     EGLConfig config;
      EGLSurface surface;
      EGLint w, h;
-     
      EGLDisplay dpy;
 
      dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
      eglInitialize(dpy, &majorVersion, &minorVersion);
+          
+     EGLNativeWindowType window = android_createDisplaySurface();
      
-     // Get all the "potential match" configs...
-     eglGetConfigs(dpy, NULL, 0, &numConfigs);
-     EGLConfig* const configs = malloc(sizeof(EGLConfig)*numConfigs);
-     eglChooseConfig(dpy, s_configAttribs, configs, numConfigs, &n);
-     config = configs[0];
-     if (n > 1) {
-         // if there is more than one candidate, go through the list
-         // and pick one that matches our framebuffer format
-         int fbSzA = 0; // should not hardcode
-         int fbSzR = 5; // should not hardcode
-         int fbSzG = 6; // should not hardcode
-         int fbSzB = 5; // should not hardcode
-         int i;
-         for (i=0 ; i<n ; i++) {
-             EGLint r,g,b,a;
-             eglGetConfigAttrib(dpy, configs[i], EGL_RED_SIZE,   &r);
-             eglGetConfigAttrib(dpy, configs[i], EGL_GREEN_SIZE, &g);
-             eglGetConfigAttrib(dpy, configs[i], EGL_BLUE_SIZE,  &b);
-             eglGetConfigAttrib(dpy, configs[i], EGL_ALPHA_SIZE, &a);
-             if (fbSzA == a && fbSzR == r && fbSzG == g && fbSzB  == b) {
-                 config = configs[i];
-                 break;
-             }
-         }
+     status_t err = EGLUtils::selectConfigForNativeWindow(
+             dpy, configAttribs, window, &config);
+     if (err) {
+         fprintf(stderr, "couldn't find an EGLConfig matching the screen format\n");
+         return 0;
      }
-     free(configs);
-     
-     
-     
-     surface = eglCreateWindowSurface(dpy, config,
-             android_createDisplaySurface(), NULL);
+
+     surface = eglCreateWindowSurface(dpy, config, window, NULL);
      context = eglCreateContext(dpy, config, NULL, NULL);
      eglMakeCurrent(dpy, surface, surface, context);   
      eglQuerySurface(dpy, surface, EGL_WIDTH, &w);