es: OpenGL ES 1.x demo programs

9 files changed, 3899 insertions, 0 deletions

diff --git a/progs/es1/xegl/Makefile b/progs/es1/xegl/Makefile
new file mode 100644
index 0000000000..fe0b05c552
--- /dev/null
+++ b/progs/es1/xegl/Makefile
@@ -0,0 +1,77 @@
+# progs/gles/xegl/Makefile
+
+TOP = ../../..
+include $(TOP)/configs/current
+
+
+INCLUDE_DIRS = \
+	-I$(TOP)/include \
+
+HEADERS = $(TOP)/include/GLES/egl.h
+
+
+ES1_LIB_DEPS = \
+	$(TOP)/$(LIB_DIR)/libEGL.so \
+	$(TOP)/$(LIB_DIR)/libGLESv1_CM.so
+
+
+ES1_LIBS = \
+	-L$(TOP)/$(LIB_DIR) -lEGL \
+	-L$(TOP)/$(LIB_DIR) -lGLESv1_CM $(LIBDRM_LIB)
+
+PROGRAMS = \
+	drawtex \
+	es1_info \
+	msaa \
+	pbuffer \
+	render_tex \
+	torus \
+	tri \
+	two_win
+
+
+.c.o:
+	$(CC) -c $(INCLUDE_DIRS) $(CFLAGS) $< -o $@
+
+
+
+default: $(PROGRAMS)
+
+
+
+drawtex: drawtex.o $(ES1_LIB_DEPS)
+	$(CC) $(CFLAGS) drawtex.o $(ES1_LIBS) -o $@
+
+
+es1_info: es1_info.o $(ES1_LIB_DEPS)
+	$(CC) $(CFLAGS) es1_info.o $(ES1_LIBS) -o $@
+
+
+msaa: msaa.o $(ES1_LIB_DEPS)
+	$(CC) $(CFLAGS) msaa.o $(ES1_LIBS) -o $@
+
+
+pbuffer: pbuffer.o $(ES1_LIB_DEPS)
+	$(CC) $(CFLAGS) pbuffer.o $(ES1_LIBS) -o $@
+
+
+render_tex: render_tex.o $(ES1_LIB_DEPS)
+	$(CC) $(CFLAGS) render_tex.o $(ES1_LIBS) -o $@
+
+
+torus: torus.o $(ES1_LIB_DEPS)
+	$(CC) $(CFLAGS) torus.o $(ES1_LIBS) -o $@
+
+
+two_win: two_win.o $(ES1_LIB_DEPS)
+	$(CC) $(CFLAGS) two_win.o $(ES1_LIBS) -o $@
+
+
+tri: tri.o $(ES1_LIB_DEPS)
+	$(CC) $(CFLAGS) tri.o $(ES1_LIBS) -o $@
+
+
+clean:
+	rm -f *.o *~
+	rm -f $(PROGRAMS)
+
diff --git a/progs/es1/xegl/drawtex.c b/progs/es1/xegl/drawtex.c
new file mode 100644
index 0000000000..ca0615e267
--- /dev/null
+++ b/progs/es1/xegl/drawtex.c
@@ -0,0 +1,427 @@
+/*
+ * Copyright (C) 2008  Tunsgten Graphics,Inc.   All Rights Reserved.
+ */
+
+/*
+ * Test GL_OES_draw_texture
+ * Brian Paul
+ * August 2008
+ */
+
+#define GL_GLEXT_PROTOTYPES
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <EGL/egl.h>
+
+
+
+static GLfloat view_posx = 10.0, view_posy = 20.0;
+static GLfloat width = 200, height = 200;
+
+
+static void
+draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT);
+
+   glDrawTexfOES(view_posx, view_posy, 0.0, width, height);
+}
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+   GLfloat ar = (GLfloat) width / (GLfloat) height;
+
+   glViewport(0, 0, (GLint) width, (GLint) height);
+
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+
+#ifdef GL_VERSION_ES_CM_1_0
+   glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+#else
+   glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
+#endif
+   
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+   glTranslatef(0.0, 0.0, -15.0);
+}
+
+
+static float
+dist(GLuint i, GLuint j, float x, float y)
+{
+   return sqrt((i-x) * (i-x) + (j-y) * (j-y));
+}
+
+static void
+make_smile_texture(void)
+{
+#define SZ 128
+   GLenum Filter = GL_LINEAR;
+   GLubyte image[SZ][SZ][4];
+   GLuint i, j;
+   GLint cropRect[4];
+
+   for (i = 0; i < SZ; i++) {
+      for (j = 0; j < SZ; j++) {
+         GLfloat d_mouth = dist(i, j, SZ/2, SZ/2);
+         GLfloat d_rt_eye = dist(i, j, SZ*3/4, SZ*3/4);
+         GLfloat d_lt_eye = dist(i, j, SZ*3/4, SZ*1/4);
+         if (d_rt_eye < SZ / 8 || d_lt_eye < SZ / 8) {
+            image[i][j][0] = 20;
+            image[i][j][1] = 50;
+            image[i][j][2] = 255;
+            image[i][j][3] = 255;
+         }
+         else if (i < SZ/2 && d_mouth < SZ/3) {
+            image[i][j][0] = 255;
+            image[i][j][1] = 20;
+            image[i][j][2] = 20;
+            image[i][j][3] = 255;
+         }
+         else {
+            image[i][j][0] = 200;
+            image[i][j][1] = 200;
+            image[i][j][2] = 200;
+            image[i][j][3] = 255;
+         }
+      }
+   }
+
+   glActiveTexture(GL_TEXTURE0); /* unit 0 */
+   glBindTexture(GL_TEXTURE_2D, 42);
+   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0,
+                GL_RGBA, GL_UNSIGNED_BYTE, image);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+
+   cropRect[0] = 0;
+   cropRect[1] = 0;
+   cropRect[2] = SZ;
+   cropRect[3] = SZ;
+   glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, cropRect);
+#undef SZ
+}
+
+
+
+static void
+init(void)
+{
+   const char *ext = (char *) glGetString(GL_EXTENSIONS);
+
+   if (!strstr(ext, "GL_OES_draw_texture")) {
+      fprintf(stderr, "Sorry, this program requires GL_OES_draw_texture");
+      exit(1);
+   }
+
+   glClearColor(0.4, 0.4, 0.4, 0.0);
+
+   make_smile_texture();
+   glEnable(GL_TEXTURE_2D);
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+              const char *name,
+              int x, int y, int width, int height,
+              Window *winRet,
+              EGLContext *ctxRet,
+              EGLSurface *surfRet)
+{
+   static const EGLint attribs[] = {
+      EGL_RED_SIZE, 1,
+      EGL_GREEN_SIZE, 1,
+      EGL_BLUE_SIZE, 1,
+      EGL_NONE
+   };
+
+   int scrnum;
+   XSetWindowAttributes attr;
+   unsigned long mask;
+   Window root;
+   Window win;
+   XVisualInfo *visInfo, visTemplate;
+   int num_visuals;
+   EGLContext ctx;
+   EGLConfig config;
+   EGLint num_configs;
+   EGLint vid;
+
+   scrnum = DefaultScreen( x_dpy );
+   root = RootWindow( x_dpy, scrnum );
+
+   if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+      printf("Error: couldn't get an EGL visual config\n");
+      exit(1);
+   }
+
+   assert(config);
+   assert(num_configs > 0);
+
+   if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+      printf("Error: eglGetConfigAttrib() failed\n");
+      exit(1);
+   }
+
+   /* The X window visual must match the EGL config */
+   visTemplate.visualid = vid;
+   visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+   if (!visInfo) {
+      printf("Error: couldn't get X visual\n");
+      exit(1);
+   }
+
+   /* window attributes */
+   attr.background_pixel = 0;
+   attr.border_pixel = 0;
+   attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+   attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+   mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+   win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+		        0, visInfo->depth, InputOutput,
+		        visInfo->visual, mask, &attr );
+
+   /* set hints and properties */
+   {
+      XSizeHints sizehints;
+      sizehints.x = x;
+      sizehints.y = y;
+      sizehints.width  = width;
+      sizehints.height = height;
+      sizehints.flags = USSize | USPosition;
+      XSetNormalHints(x_dpy, win, &sizehints);
+      XSetStandardProperties(x_dpy, win, name, name,
+                              None, (char **)NULL, 0, &sizehints);
+   }
+
+   eglBindAPI(EGL_OPENGL_ES_API);
+
+   ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+   if (!ctx) {
+      printf("Error: eglCreateContext failed\n");
+      exit(1);
+   }
+
+   *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+   if (!*surfRet) {
+      printf("Error: eglCreateWindowSurface failed\n");
+      exit(1);
+   }
+
+   XFree(visInfo);
+
+   *winRet = win;
+   *ctxRet = ctx;
+}
+
+
+static void
+event_loop(Display *dpy, Window win,
+           EGLDisplay egl_dpy, EGLSurface egl_surf)
+{
+   int anim = 0;
+
+   while (1) {
+      int redraw = 0;
+
+      if (!anim || XPending(dpy)) {
+         XEvent event;
+         XNextEvent(dpy, &event);
+
+         switch (event.type) {
+         case Expose:
+            redraw = 1;
+            break;
+         case ConfigureNotify:
+            reshape(event.xconfigure.width, event.xconfigure.height);
+            break;
+         case KeyPress:
+            {
+               char buffer[10];
+               int r, code;
+               code = XLookupKeysym(&event.xkey, 0);
+               if (code == XK_Left) {
+               view_posx -= 1.0;
+               }
+               else if (code == XK_Right) {
+                  view_posx += 1.0;
+               }
+               else if (code == XK_Up) {
+                  view_posy += 1.0;
+               }
+               else if (code == XK_Down) {
+                  view_posy -= 1.0;
+               }
+               else {
+                  r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+                                    NULL, NULL);
+                  if (buffer[0] == ' ') {
+                     anim = !anim;
+                  }
+                  else if (buffer[0] == 'w') {
+                     width -= 1.0f;
+                  }
+                  else if (buffer[0] == 'W') {
+                     width += 1.0f;
+                  }
+                  else if (buffer[0] == 'h') {
+                     height -= 1.0f;
+                  }
+                  else if (buffer[0] == 'H') {
+                     height += 1.0f;
+                  }
+                  else if (buffer[0] == 27) {
+                     /* escape */
+                     return;
+                  }
+               }
+            }
+            redraw = 1;
+            break;
+         default:
+            ; /*no-op*/
+         }
+      }
+
+      if (anim) {
+         view_posx += 1.0;
+         view_posy += 2.0;
+         redraw = 1;
+      }
+
+      if (redraw) {
+         draw();
+         eglSwapBuffers(egl_dpy, egl_surf);
+      }
+   }
+}
+
+
+static void
+usage(void)
+{
+   printf("Usage:\n");
+   printf("  -display <displayname>  set the display to run on\n");
+   printf("  -info                   display OpenGL renderer info\n");
+}
+ 
+
+int
+main(int argc, char *argv[])
+{
+   const int winWidth = 400, winHeight = 300;
+   Display *x_dpy;
+   Window win;
+   EGLSurface egl_surf;
+   EGLContext egl_ctx;
+   EGLDisplay egl_dpy;
+   char *dpyName = NULL;
+   GLboolean printInfo = GL_FALSE;
+   EGLint egl_major, egl_minor;
+   int i;
+   const char *s;
+
+   for (i = 1; i < argc; i++) {
+      if (strcmp(argv[i], "-display") == 0) {
+         dpyName = argv[i+1];
+         i++;
+      }
+      else if (strcmp(argv[i], "-info") == 0) {
+         printInfo = GL_TRUE;
+      }
+      else {
+         usage();
+         return -1;
+      }
+   }
+
+   x_dpy = XOpenDisplay(dpyName);
+   if (!x_dpy) {
+      printf("Error: couldn't open display %s\n",
+	     dpyName ? dpyName : getenv("DISPLAY"));
+      return -1;
+   }
+
+   egl_dpy = eglGetDisplay(x_dpy);
+   if (!egl_dpy) {
+      printf("Error: eglGetDisplay() failed\n");
+      return -1;
+   }
+
+   if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+      printf("Error: eglInitialize() failed\n");
+      return -1;
+   }
+
+   s = eglQueryString(egl_dpy, EGL_VERSION);
+   printf("EGL_VERSION = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_VENDOR);
+   printf("EGL_VENDOR = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+   printf("EGL_EXTENSIONS = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+   printf("EGL_CLIENT_APIS = %s\n", s);
+
+   make_x_window(x_dpy, egl_dpy,
+                 "drawtex", 0, 0, winWidth, winHeight,
+                 &win, &egl_ctx, &egl_surf);
+
+   XMapWindow(x_dpy, win);
+   if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+      printf("Error: eglMakeCurrent() failed\n");
+      return -1;
+   }
+
+   if (printInfo) {
+      printf("GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
+      printf("GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
+      printf("GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
+      printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
+   }
+
+   init();
+
+   /* Set initial projection/viewing transformation.
+    * We can't be sure we'll get a ConfigureNotify event when the window
+    * first appears.
+    */
+   reshape(winWidth, winHeight);
+
+   event_loop(x_dpy, win, egl_dpy, egl_surf);
+
+   eglDestroyContext(egl_dpy, egl_ctx);
+   eglDestroySurface(egl_dpy, egl_surf);
+   eglTerminate(egl_dpy);
+
+
+   XDestroyWindow(x_dpy, win);
+   XCloseDisplay(x_dpy);
+
+   return 0;
+}
diff --git a/progs/es1/xegl/es1_info.c b/progs/es1/xegl/es1_info.c
new file mode 100644
index 0000000000..963304de13
--- /dev/null
+++ b/progs/es1/xegl/es1_info.c
@@ -0,0 +1,274 @@
+/*
+ * Copyright (C) 2008  Tunsgten Graphics,Inc.   All Rights Reserved.
+ */
+
+/*
+ * List OpenGL ES extensions.
+ * Print ES 1 or ES 2 extensions depending on which library we're
+ * linked with: libGLESv1_CM.so vs libGLESv2.so
+ */
+
+#define GL_GLEXT_PROTOTYPES
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <EGL/egl.h>
+
+
+/*
+ * Print a list of extensions, with word-wrapping.
+ */
+static void
+print_extension_list(const char *ext)
+{
+   const char *indentString = "    ";
+   const int indent = 4;
+   const int max = 79;
+   int width, i, j;
+
+   if (!ext || !ext[0])
+      return;
+
+   width = indent;
+   printf(indentString);
+   i = j = 0;
+   while (1) {
+      if (ext[j] == ' ' || ext[j] == 0) {
+         /* found end of an extension name */
+         const int len = j - i;
+         if (width + len > max) {
+            /* start a new line */
+            printf("\n");
+            width = indent;
+            printf(indentString);
+         }
+         /* print the extension name between ext[i] and ext[j] */
+         while (i < j) {
+            printf("%c", ext[i]);
+            i++;
+         }
+         /* either we're all done, or we'll continue with next extension */
+         width += len + 1;
+         if (ext[j] == 0) {
+            break;
+         }
+         else {
+            i++;
+            j++;
+            if (ext[j] == 0)
+               break;
+            printf(", ");
+            width += 2;
+         }
+      }
+      j++;
+   }
+   printf("\n");
+}
+
+
+static void
+info(EGLDisplay egl_dpy)
+{
+   const char *s;
+
+   s = eglQueryString(egl_dpy, EGL_VERSION);
+   printf("EGL_VERSION = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_VENDOR);
+   printf("EGL_VENDOR = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+   printf("EGL_EXTENSIONS = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+   printf("EGL_CLIENT_APIS = %s\n", s);
+
+   printf("GL_VERSION: %s\n", (char *) glGetString(GL_VERSION));
+   printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
+   printf("GL_EXTENSIONS:\n");
+   print_extension_list((char *) glGetString(GL_EXTENSIONS));
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+              const char *name,
+              int x, int y, int width, int height,
+              Window *winRet,
+              EGLContext *ctxRet,
+              EGLSurface *surfRet)
+{
+   static const EGLint attribs[] = {
+      EGL_RED_SIZE, 1,
+      EGL_GREEN_SIZE, 1,
+      EGL_BLUE_SIZE, 1,
+      EGL_NONE
+   };
+
+   int scrnum;
+   XSetWindowAttributes attr;
+   unsigned long mask;
+   Window root;
+   Window win;
+   XVisualInfo *visInfo, visTemplate;
+   int num_visuals;
+   EGLContext ctx;
+   EGLConfig config;
+   EGLint num_configs;
+   EGLint vid;
+
+   scrnum = DefaultScreen( x_dpy );
+   root = RootWindow( x_dpy, scrnum );
+
+   if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+      printf("Error: couldn't get an EGL visual config\n");
+      exit(1);
+   }
+
+   assert(config);
+   assert(num_configs > 0);
+
+   if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+      printf("Error: eglGetConfigAttrib() failed\n");
+      exit(1);
+   }
+
+   /* The X window visual must match the EGL config */
+   visTemplate.visualid = vid;
+   visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+   if (!visInfo) {
+      printf("Error: couldn't get X visual\n");
+      exit(1);
+   }
+
+   /* window attributes */
+   attr.background_pixel = 0;
+   attr.border_pixel = 0;
+   attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+   attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+   mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+   win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+		        0, visInfo->depth, InputOutput,
+		        visInfo->visual, mask, &attr );
+
+   /* set hints and properties */
+   {
+      XSizeHints sizehints;
+      sizehints.x = x;
+      sizehints.y = y;
+      sizehints.width  = width;
+      sizehints.height = height;
+      sizehints.flags = USSize | USPosition;
+      XSetNormalHints(x_dpy, win, &sizehints);
+      XSetStandardProperties(x_dpy, win, name, name,
+                              None, (char **)NULL, 0, &sizehints);
+   }
+
+   eglBindAPI(EGL_OPENGL_ES_API);
+
+   ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+   if (!ctx) {
+      printf("Error: eglCreateContext failed\n");
+      exit(1);
+   }
+
+   *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+   if (!*surfRet) {
+      printf("Error: eglCreateWindowSurface failed\n");
+      exit(1);
+   }
+
+   XFree(visInfo);
+
+   *winRet = win;
+   *ctxRet = ctx;
+}
+
+
+static void
+usage(void)
+{
+   printf("Usage:\n");
+   printf("  -display <displayname>  set the display to run on\n");
+}
+ 
+
+int
+main(int argc, char *argv[])
+{
+   const int winWidth = 400, winHeight = 300;
+   Display *x_dpy;
+   Window win;
+   EGLSurface egl_surf;
+   EGLContext egl_ctx;
+   EGLDisplay egl_dpy;
+   char *dpyName = NULL;
+   EGLint egl_major, egl_minor;
+   int i;
+
+   for (i = 1; i < argc; i++) {
+      if (strcmp(argv[i], "-display") == 0) {
+         dpyName = argv[i+1];
+         i++;
+      }
+      else {
+         usage();
+         return -1;
+      }
+   }
+
+   x_dpy = XOpenDisplay(dpyName);
+   if (!x_dpy) {
+      printf("Error: couldn't open display %s\n",
+	     dpyName ? dpyName : getenv("DISPLAY"));
+      return -1;
+   }
+
+   egl_dpy = eglGetDisplay(x_dpy);
+   if (!egl_dpy) {
+      printf("Error: eglGetDisplay() failed\n");
+      return -1;
+   }
+
+   if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+      printf("Error: eglInitialize() failed\n");
+      return -1;
+   }
+
+   make_x_window(x_dpy, egl_dpy,
+                 "ES info", 0, 0, winWidth, winHeight,
+                 &win, &egl_ctx, &egl_surf);
+
+   /*XMapWindow(x_dpy, win);*/
+   if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+      printf("Error: eglMakeCurrent() failed\n");
+      return -1;
+   }
+
+   info(egl_dpy);
+
+   eglDestroyContext(egl_dpy, egl_ctx);
+   eglDestroySurface(egl_dpy, egl_surf);
+   eglTerminate(egl_dpy);
+
+
+   XDestroyWindow(x_dpy, win);
+   XCloseDisplay(x_dpy);
+
+   return 0;
+}
diff --git a/progs/es1/xegl/msaa.c b/progs/es1/xegl/msaa.c
new file mode 100644
index 0000000000..b4c6c63217
--- /dev/null
+++ b/progs/es1/xegl/msaa.c
@@ -0,0 +1,442 @@
+/*
+ * Copyright (C) 2008  Brian Paul   All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Test MSAA with X/EGL and OpenGL ES 1.x
+ * Brian Paul
+ * 15 September 2008
+ */
+
+#define USE_FULL_GL 0
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#if USE_FULL_GL
+#include <GL/gl.h>  /* use full OpenGL */
+#else
+#include <GLES/gl.h>  /* use OpenGL ES 1.x */
+#include <GLES/glext.h>
+#endif
+#include <EGL/egl.h>
+
+
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+static GLboolean AA = 0*GL_TRUE;
+
+
+static void
+draw(void)
+{
+   float a;
+
+   static const GLfloat verts[4][2] = {
+      { -1, -.1 },
+      {  1, -.1 },
+      { -1,  .1 },
+      {  1,  .1 }
+   };
+   static const GLfloat colors[4][4] = {
+      { 1, 0, 0, 1 },
+      { 0, 1, 0, 1 },
+      { 0, 0, 1, 1 },
+      { 1, 0, 1, 1 }
+   };
+
+   if (AA) {
+      printf("MSAA enabled\n");
+      glEnable(GL_MULTISAMPLE);
+   }
+   else {
+      printf("MSAA disabled\n");
+      glDisable(GL_MULTISAMPLE);
+   }
+
+   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+   glPushMatrix();
+   glRotatef(view_rotx, 1, 0, 0);
+   glRotatef(view_roty, 0, 1, 0);
+   glRotatef(view_rotz, 0, 0, 1);
+
+   {
+      glVertexPointer(2, GL_FLOAT, 0, verts);
+      glColorPointer(4, GL_FLOAT, 0, colors);
+
+      glEnableClientState(GL_VERTEX_ARRAY);
+      glEnableClientState(GL_COLOR_ARRAY);
+
+      for (a = 0; a < 360; a += 20.0) {
+         glPushMatrix();
+
+         glRotatef(a, 0, 0, 1);
+         glTranslatef(1.5, 0, 0);
+
+         /* draw triangle */
+         glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+
+         glPopMatrix();
+      }
+
+      glDisableClientState(GL_VERTEX_ARRAY);
+      glDisableClientState(GL_COLOR_ARRAY);
+   }
+
+   glPopMatrix();
+}
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+   GLfloat ary = 3.0;
+   GLfloat arx = ary * (GLfloat) width / (GLfloat) height;
+
+   glViewport(0, 0, (GLint) width, (GLint) height);
+
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+#ifdef GL_VERSION_ES_CM_1_0
+   glOrthof(-arx, arx, -ary, ary, -1.0, 1.0);
+#else
+   glOrtho(-arx, arx, -ary, ary, -1.0, 1.0);
+#endif
+   
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+}
+
+
+
+static void
+init(void)
+{
+   printf("Press 'a' to toggle multisample antialiasing\n");
+   printf("Press 'Esc' to exit\n");
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+              const char *name,
+              int x, int y, int width, int height,
+              Window *winRet,
+              EGLContext *ctxRet,
+              EGLSurface *surfRet)
+{
+   static const EGLint attribs[] = {
+      EGL_RED_SIZE, 1,
+      EGL_GREEN_SIZE, 1,
+      EGL_BLUE_SIZE, 1,
+      EGL_DEPTH_SIZE, 1,
+      EGL_SAMPLES, 1,
+      EGL_SAMPLE_BUFFERS, 1,
+      EGL_NONE
+   };
+
+   int scrnum;
+   XSetWindowAttributes attr;
+   unsigned long mask;
+   Window root;
+   Window win;
+   XVisualInfo *visInfo, visTemplate;
+   int num_visuals;
+   EGLContext ctx;
+   EGLConfig config;
+   EGLint num_configs;
+   EGLint vid;
+
+   scrnum = DefaultScreen( x_dpy );
+   root = RootWindow( x_dpy, scrnum );
+
+   if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+      printf("Error: couldn't get an EGL visual config\n");
+      exit(1);
+   }
+
+   if (num_configs < 1) {
+      printf("Error: Unable to find multisample pixel format.\n");
+      printf("Try running glxinfo to see if your server supports MSAA.\n");
+      exit(1);
+   }
+
+   if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+      printf("Error: eglGetConfigAttrib() failed\n");
+      exit(1);
+   }
+
+   /* The X window visual must match the EGL config */
+   visTemplate.visualid = vid;
+   visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+   if (!visInfo) {
+      printf("Error: couldn't get X visual\n");
+      exit(1);
+   }
+
+   /* window attributes */
+   attr.background_pixel = 0;
+   attr.border_pixel = 0;
+   attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+   attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+   mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+   win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+		        0, visInfo->depth, InputOutput,
+		        visInfo->visual, mask, &attr );
+
+   /* set hints and properties */
+   {
+      XSizeHints sizehints;
+      sizehints.x = x;
+      sizehints.y = y;
+      sizehints.width  = width;
+      sizehints.height = height;
+      sizehints.flags = USSize | USPosition;
+      XSetNormalHints(x_dpy, win, &sizehints);
+      XSetStandardProperties(x_dpy, win, name, name,
+                              None, (char **)NULL, 0, &sizehints);
+   }
+
+#if USE_FULL_GL
+   eglBindAPI(EGL_OPENGL_API);
+#else
+   eglBindAPI(EGL_OPENGL_ES_API);
+#endif
+
+   ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+   if (!ctx) {
+      printf("Error: eglCreateContext failed\n");
+      exit(1);
+   }
+
+   *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+   if (!*surfRet) {
+      printf("Error: eglCreateWindowSurface failed\n");
+      exit(1);
+   }
+
+   XFree(visInfo);
+
+   *winRet = win;
+   *ctxRet = ctx;
+}
+
+
+static void
+event_loop(Display *dpy, Window win,
+           EGLDisplay egl_dpy, EGLSurface egl_surf)
+{
+   while (1) {
+      int redraw = 0;
+      XEvent event;
+
+      XNextEvent(dpy, &event);
+
+      switch (event.type) {
+      case Expose:
+         redraw = 1;
+         break;
+      case ConfigureNotify:
+         reshape(event.xconfigure.width, event.xconfigure.height);
+         break;
+      case KeyPress:
+         {
+            char buffer[10];
+            int r, code;
+            code = XLookupKeysym(&event.xkey, 0);
+            if (code == XK_Left) {
+               view_roty += 5.0;
+            }
+            else if (code == XK_Right) {
+               view_roty -= 5.0;
+            }
+            else if (code == XK_Up) {
+               view_rotx += 5.0;
+            }
+            else if (code == XK_Down) {
+               view_rotx -= 5.0;
+            }
+            else {
+               r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+                                 NULL, NULL);
+               if (buffer[0] == 'a') {
+                  AA = !AA;
+                  redraw = 1;
+               }
+               else if (buffer[0] == 27) {
+                  /* escape */
+                  return;
+               }
+            }
+         }
+         redraw = 1;
+         break;
+      default:
+         ; /*no-op*/
+      }
+
+      if (redraw) {
+         draw();
+         eglSwapBuffers(egl_dpy, egl_surf);
+      }
+   }
+}
+
+
+static void
+usage(void)
+{
+   printf("Usage:\n");
+   printf("  -display <displayname>  set the display to run on\n");
+   printf("  -info                   display OpenGL renderer info\n");
+}
+ 
+
+int
+main(int argc, char *argv[])
+{
+   const int winWidth = 600, winHeight = 600;
+   Display *x_dpy;
+   Window win;
+   EGLSurface egl_surf;
+   EGLContext egl_ctx;
+   EGLDisplay egl_dpy;
+   char *dpyName = NULL;
+   GLboolean printInfo = GL_FALSE;
+   EGLint egl_major, egl_minor;
+   int i;
+   const char *s;
+
+   static struct {
+      char *name;
+      GLenum value;
+      enum {GetString, GetInteger} type;
+   } info_items[] = {
+      {"GL_RENDERER", GL_RENDERER, GetString},
+      {"GL_VERSION", GL_VERSION, GetString},
+      {"GL_VENDOR", GL_VENDOR, GetString},
+      {"GL_EXTENSIONS", GL_EXTENSIONS, GetString},
+      {"GL_MAX_PALETTE_MATRICES_OES", GL_MAX_PALETTE_MATRICES_OES, GetInteger},
+      {"GL_MAX_VERTEX_UNITS_OES", GL_MAX_VERTEX_UNITS_OES, GetInteger},
+   };
+
+   for (i = 1; i < argc; i++) {
+      if (strcmp(argv[i], "-display") == 0) {
+         dpyName = argv[i+1];
+         i++;
+      }
+      else if (strcmp(argv[i], "-info") == 0) {
+         printInfo = GL_TRUE;
+      }
+      else {
+         usage();
+         return -1;
+      }
+   }
+
+   x_dpy = XOpenDisplay(dpyName);
+   if (!x_dpy) {
+      printf("Error: couldn't open display %s\n",
+	     dpyName ? dpyName : getenv("DISPLAY"));
+      return -1;
+   }
+
+   egl_dpy = eglGetDisplay(x_dpy);
+   if (!egl_dpy) {
+      printf("Error: eglGetDisplay() failed\n");
+      return -1;
+   }
+
+   if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+      printf("Error: eglInitialize() failed\n");
+      return -1;
+   }
+
+   s = eglQueryString(egl_dpy, EGL_VERSION);
+   printf("EGL_VERSION = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_VENDOR);
+   printf("EGL_VENDOR = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+   printf("EGL_EXTENSIONS = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+   printf("EGL_CLIENT_APIS = %s\n", s);
+
+   make_x_window(x_dpy, egl_dpy,
+                 "msaa", 0, 0, winWidth, winHeight,
+                 &win, &egl_ctx, &egl_surf);
+
+   XMapWindow(x_dpy, win);
+   if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+      printf("Error: eglMakeCurrent() failed\n");
+      return -1;
+   }
+
+   if (printInfo) {
+      for (i = 0; i < sizeof(info_items)/sizeof(info_items[0]); i++) {
+         switch (info_items[i].type) {
+            case GetString:
+               printf("%s = %s\n", info_items[i].name, (char *)glGetString(info_items[i].value));
+               break;
+            case GetInteger: {
+               GLint rv = -1;
+               glGetIntegerv(info_items[i].value, &rv);
+               printf("%s = %d\n", info_items[i].name, rv);
+               break;
+            }
+         }
+      }
+   };
+   init();
+
+   /* Set initial projection/viewing transformation.
+    * We can't be sure we'll get a ConfigureNotify event when the window
+    * first appears.
+    */
+   reshape(winWidth, winHeight);
+
+   event_loop(x_dpy, win, egl_dpy, egl_surf);
+
+   eglDestroyContext(egl_dpy, egl_ctx);
+   eglDestroySurface(egl_dpy, egl_surf);
+   eglTerminate(egl_dpy);
+
+
+   XDestroyWindow(x_dpy, win);
+   XCloseDisplay(x_dpy);
+
+   return 0;
+}
diff --git a/progs/es1/xegl/pbuffer.c b/progs/es1/xegl/pbuffer.c
new file mode 100644
index 0000000000..011c2af58f
--- /dev/null
+++ b/progs/es1/xegl/pbuffer.c
@@ -0,0 +1,607 @@
+/*
+ * Copyright (C) 2008  Tunsgten Graphics,Inc.   All Rights Reserved.
+ */
+
+/*
+ * Test EGL Pbuffers
+ * Brian Paul
+ * August 2008
+ */
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <EGL/egl.h>
+
+
+
+static int WinWidth = 300, WinHeight = 300;
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+
+
+static void
+Normal(GLfloat *n, GLfloat nx, GLfloat ny, GLfloat nz)
+{
+   n[0] = nx;
+   n[1] = ny;
+   n[2] = nz;
+}
+
+static void
+Vertex(GLfloat *v, GLfloat vx, GLfloat vy, GLfloat vz)
+{
+   v[0] = vx;
+   v[1] = vy;
+   v[2] = vz;
+}
+
+static void
+Texcoord(GLfloat *v, GLfloat s, GLfloat t)
+{
+   v[0] = s;
+   v[1] = t;
+}
+
+
+/* Borrowed from glut, adapted */
+static void
+draw_torus(GLfloat r, GLfloat R, GLint nsides, GLint rings)
+{
+   int i, j;
+   GLfloat theta, phi, theta1;
+   GLfloat cosTheta, sinTheta;
+   GLfloat cosTheta1, sinTheta1;
+   GLfloat ringDelta, sideDelta;
+   GLfloat varray[100][3], narray[100][3], tarray[100][2];
+   int vcount;
+
+   glVertexPointer(3, GL_FLOAT, 0, varray);
+   glNormalPointer(GL_FLOAT, 0, narray);
+   glTexCoordPointer(2, GL_FLOAT, 0, tarray);
+   glEnableClientState(GL_VERTEX_ARRAY);
+   glEnableClientState(GL_NORMAL_ARRAY);
+   glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+   
+   ringDelta = 2.0 * M_PI / rings;
+   sideDelta = 2.0 * M_PI / nsides;
+
+   theta = 0.0;
+   cosTheta = 1.0;
+   sinTheta = 0.0;
+   for (i = rings - 1; i >= 0; i--) {
+      theta1 = theta + ringDelta;
+      cosTheta1 = cos(theta1);
+      sinTheta1 = sin(theta1);
+
+      vcount = 0; /* glBegin(GL_QUAD_STRIP); */
+
+      phi = 0.0;
+      for (j = nsides; j >= 0; j--) {
+         GLfloat s0, s1, t;
+         GLfloat cosPhi, sinPhi, dist;
+
+         phi += sideDelta;
+         cosPhi = cos(phi);
+         sinPhi = sin(phi);
+         dist = R + r * cosPhi;
+
+         s0 = 20.0 * theta / (2.0 * M_PI);
+         s1 = 20.0 * theta1 / (2.0 * M_PI);
+         t = 8.0 * phi / (2.0 * M_PI);
+
+         Normal(narray[vcount], cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi);
+         Texcoord(tarray[vcount], s1, t);
+         Vertex(varray[vcount], cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi);
+         vcount++;
+
+         Normal(narray[vcount], cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi);
+         Texcoord(tarray[vcount], s0, t);
+         Vertex(varray[vcount], cosTheta * dist, -sinTheta * dist,  r * sinPhi);
+         vcount++;
+      }
+
+      /*glEnd();*/
+      assert(vcount <= 100);
+      glDrawArrays(GL_TRIANGLE_STRIP, 0, vcount);
+
+      theta = theta1;
+      cosTheta = cosTheta1;
+      sinTheta = sinTheta1;
+   }
+
+   glDisableClientState(GL_VERTEX_ARRAY);
+   glDisableClientState(GL_NORMAL_ARRAY);
+   glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+}
+
+
+static void
+draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+   glPushMatrix();
+   glRotatef(view_rotx, 1, 0, 0);
+   glRotatef(view_roty, 0, 1, 0);
+   glRotatef(view_rotz, 0, 0, 1);
+   glScalef(0.5, 0.5, 0.5);
+
+   draw_torus(1.0, 3.0, 30, 60);
+
+   glPopMatrix();
+
+   glFinish();
+}
+
+
+/**
+ * Draw to both the window and pbuffer and compare results.
+ */
+static void
+draw_both(EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf,
+          EGLContext egl_ctx)
+{
+   unsigned *wbuf, *pbuf;
+   int x = 100, y = 110;
+   int i, dif;
+
+   wbuf = (unsigned *) malloc(WinWidth * WinHeight * 4);
+   pbuf = (unsigned *) malloc(WinWidth * WinHeight * 4);
+
+   glPixelStorei(GL_PACK_ALIGNMENT, 1);
+
+   /* first draw to window */
+   if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+      printf("Error: eglMakeCurrent(window) failed\n");
+      return;
+   }
+   draw();
+   glReadPixels(0, 0, WinWidth, WinHeight, GL_RGBA, GL_UNSIGNED_BYTE, wbuf);
+   printf("Window[%d,%d] = 0x%08x\n", x, y, wbuf[y*WinWidth+x]);
+
+   /* then draw to pbuffer */
+   if (!eglMakeCurrent(egl_dpy, egl_pbuf, egl_pbuf, egl_ctx)) {
+      printf("Error: eglMakeCurrent(pbuffer) failed\n");
+      return;
+   }
+   draw();
+   glReadPixels(0, 0, WinWidth, WinHeight, GL_RGBA, GL_UNSIGNED_BYTE, pbuf);
+   printf("Pbuffer[%d,%d] = 0x%08x\n", x, y, pbuf[y*WinWidth+x]);
+
+   eglSwapBuffers(egl_dpy, egl_surf);
+
+   /* compare renderings */
+   for (dif = i = 0; i < WinWidth * WinHeight; i++) {
+      if (wbuf[i] != pbuf[i]) {
+         dif = 1;
+         break;
+      }
+   }
+
+   if (dif)
+      printf("Difference at %d: 0x%08x vs. 0x%08x\n", i, wbuf[i], pbuf[i]);
+   else
+      printf("Window rendering matches Pbuffer rendering!\n");
+
+   free(wbuf);
+   free(pbuf);
+}
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+   GLfloat ar = (GLfloat) width / (GLfloat) height;
+
+   WinWidth = width;
+   WinHeight = height;
+
+   glViewport(0, 0, (GLint) width, (GLint) height);
+
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+
+#ifdef GL_VERSION_ES_CM_1_0
+   glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+#else
+   glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
+#endif
+   
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+   glTranslatef(0.0, 0.0, -15.0);
+}
+
+
+static void
+make_texture(void)
+{
+#define SZ 64
+   GLenum Filter = GL_LINEAR;
+   GLubyte image[SZ][SZ][4];
+   GLuint i, j;
+
+   for (i = 0; i < SZ; i++) {
+      for (j = 0; j < SZ; j++) {
+         GLfloat d = (i - SZ/2) * (i - SZ/2) + (j - SZ/2) * (j - SZ/2);
+         d = sqrt(d);
+         if (d < SZ/3) {
+            image[i][j][0] = 255;
+            image[i][j][1] = 255;
+            image[i][j][2] = 255;
+            image[i][j][3] = 255;
+         }
+         else {
+            image[i][j][0] = 127;
+            image[i][j][1] = 127;
+            image[i][j][2] = 127;
+            image[i][j][3] = 255;
+         }
+      }
+   }
+
+   glActiveTexture(GL_TEXTURE0); /* unit 0 */
+   glBindTexture(GL_TEXTURE_2D, 42);
+   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0,
+                GL_RGBA, GL_UNSIGNED_BYTE, image);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+#undef SZ
+}
+
+
+
+static void
+init(void)
+{
+   static const GLfloat red[4] = {1, 0, 0, 0};
+   static const GLfloat white[4] = {1.0, 1.0, 1.0, 1.0};
+   static const GLfloat diffuse[4] = {0.7, 0.7, 0.7, 1.0};
+   static const GLfloat specular[4] = {0.001, 0.001, 0.001, 1.0};
+   static const GLfloat pos[4] = {20, 20, 50, 1};
+
+   glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
+   glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, white);
+   glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 9.0);
+
+   glEnable(GL_LIGHTING);
+   glEnable(GL_LIGHT0);
+   glLightfv(GL_LIGHT0, GL_POSITION, pos);
+   glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
+   glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
+
+   glClearColor(0.4, 0.4, 0.4, 0.0);
+   glEnable(GL_DEPTH_TEST);
+
+   make_texture();
+   glEnable(GL_TEXTURE_2D);
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+              const char *name,
+              int x, int y, int width, int height,
+              Window *winRet,
+              EGLContext *ctxRet,
+              EGLSurface *surfRet)
+{
+   static const EGLint attribs[] = {
+      EGL_RED_SIZE, 1,
+      EGL_GREEN_SIZE, 1,
+      EGL_BLUE_SIZE, 1,
+      EGL_DEPTH_SIZE, 1,
+      EGL_NONE
+   };
+
+   int scrnum;
+   XSetWindowAttributes attr;
+   unsigned long mask;
+   Window root;
+   Window win;
+   XVisualInfo *visInfo, visTemplate;
+   int num_visuals;
+   EGLContext ctx;
+   EGLConfig config;
+   EGLint num_configs;
+   EGLint vid;
+
+   scrnum = DefaultScreen( x_dpy );
+   root = RootWindow( x_dpy, scrnum );
+
+   if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+      printf("Error: couldn't get an EGL visual config\n");
+      exit(1);
+   }
+
+   assert(config);
+   assert(num_configs > 0);
+
+   if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+      printf("Error: eglGetConfigAttrib() failed\n");
+      exit(1);
+   }
+
+   /* The X window visual must match the EGL config */
+   visTemplate.visualid = vid;
+   visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+   if (!visInfo) {
+      printf("Error: couldn't get X visual\n");
+      exit(1);
+   }
+
+   /* window attributes */
+   attr.background_pixel = 0;
+   attr.border_pixel = 0;
+   attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+   attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+   mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+   win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+		        0, visInfo->depth, InputOutput,
+		        visInfo->visual, mask, &attr );
+
+   /* set hints and properties */
+   {
+      XSizeHints sizehints;
+      sizehints.x = x;
+      sizehints.y = y;
+      sizehints.width  = width;
+      sizehints.height = height;
+      sizehints.flags = USSize | USPosition;
+      XSetNormalHints(x_dpy, win, &sizehints);
+      XSetStandardProperties(x_dpy, win, name, name,
+                              None, (char **)NULL, 0, &sizehints);
+   }
+
+   eglBindAPI(EGL_OPENGL_ES_API);
+
+   ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+   if (!ctx) {
+      printf("Error: eglCreateContext failed\n");
+      exit(1);
+   }
+
+   *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+   if (!*surfRet) {
+      printf("Error: eglCreateWindowSurface failed\n");
+      exit(1);
+   }
+
+   XFree(visInfo);
+
+   *winRet = win;
+   *ctxRet = ctx;
+}
+
+
+static EGLSurface
+make_pbuffer(Display *x_dpy, EGLDisplay egl_dpy, int width, int height)
+{
+   static const EGLint config_attribs[] = {
+      EGL_RED_SIZE, 1,
+      EGL_GREEN_SIZE, 1,
+      EGL_BLUE_SIZE, 1,
+      EGL_DEPTH_SIZE, 1,
+      EGL_NONE
+   };
+   EGLConfig config;
+   EGLSurface pbuf;
+   EGLint num_configs;
+   EGLint pbuf_attribs[5];
+
+   pbuf_attribs[0] = EGL_WIDTH;
+   pbuf_attribs[1] = width;
+   pbuf_attribs[2] = EGL_HEIGHT;
+   pbuf_attribs[3] = height;
+   pbuf_attribs[4] = EGL_NONE;
+
+   if (!eglChooseConfig( egl_dpy, config_attribs, &config, 1, &num_configs)) {
+      printf("Error: couldn't get an EGL config for pbuffer\n");
+      exit(1);
+   }
+
+   pbuf = eglCreatePbufferSurface(egl_dpy, config, pbuf_attribs);
+
+   return pbuf;
+}
+
+
+static void
+event_loop(Display *dpy, Window win,
+           EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf,
+           EGLContext egl_ctx)
+{
+   int anim = 0;
+
+   while (1) {
+      int redraw = 0;
+
+      if (!anim || XPending(dpy)) {
+         XEvent event;
+         XNextEvent(dpy, &event);
+
+         switch (event.type) {
+         case Expose:
+            redraw = 1;
+            break;
+         case ConfigureNotify:
+            if (event.xconfigure.window == win)
+               reshape(event.xconfigure.width, event.xconfigure.height);
+            break;
+         case KeyPress:
+            {
+               char buffer[10];
+               int r, code;
+               code = XLookupKeysym(&event.xkey, 0);
+               if (code == XK_Left) {
+               view_roty += 5.0;
+               }
+               else if (code == XK_Right) {
+                  view_roty -= 5.0;
+               }
+               else if (code == XK_Up) {
+                  view_rotx += 5.0;
+               }
+               else if (code == XK_Down) {
+                  view_rotx -= 5.0;
+               }
+               else {
+                  r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+                                    NULL, NULL);
+                  if (buffer[0] == ' ') {
+                     anim = !anim;
+                  }
+                  else if (buffer[0] == 27) {
+                     /* escape */
+                     return;
+                  }
+               }
+            }
+            redraw = 1;
+            break;
+         default:
+            ; /*no-op*/
+         }
+      }
+
+      if (anim) {
+         view_rotx += 1.0;
+         view_roty += 2.0;
+         redraw = 1;
+      }
+
+      if (redraw) {
+         draw_both(egl_dpy, egl_surf, egl_pbuf, egl_ctx);
+      }
+   }
+}
+
+
+static void
+usage(void)
+{
+   printf("Usage:\n");
+   printf("  -display <displayname>  set the display to run on\n");
+   printf("  -info                   display OpenGL renderer info\n");
+}
+ 
+
+int
+main(int argc, char *argv[])
+{
+   Display *x_dpy;
+   Window win;
+   EGLSurface egl_surf, egl_pbuf;
+   EGLContext egl_ctx;
+   EGLDisplay egl_dpy;
+   char *dpyName = NULL;
+   GLboolean printInfo = GL_FALSE;
+   EGLint egl_major, egl_minor;
+   int i;
+   const char *s;
+
+   for (i = 1; i < argc; i++) {
+      if (strcmp(argv[i], "-display") == 0) {
+         dpyName = argv[i+1];
+         i++;
+      }
+      else if (strcmp(argv[i], "-info") == 0) {
+         printInfo = GL_TRUE;
+      }
+      else {
+         usage();
+         return -1;
+      }
+   }
+
+   x_dpy = XOpenDisplay(dpyName);
+   if (!x_dpy) {
+      printf("Error: couldn't open display %s\n",
+	     dpyName ? dpyName : getenv("DISPLAY"));
+      return -1;
+   }
+
+   egl_dpy = eglGetDisplay(x_dpy);
+   if (!egl_dpy) {
+      printf("Error: eglGetDisplay() failed\n");
+      return -1;
+   }
+
+   if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+      printf("Error: eglInitialize() failed\n");
+      return -1;
+   }
+
+   s = eglQueryString(egl_dpy, EGL_VERSION);
+   printf("EGL_VERSION = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_VENDOR);
+   printf("EGL_VENDOR = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+   printf("EGL_EXTENSIONS = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+   printf("EGL_CLIENT_APIS = %s\n", s);
+
+   make_x_window(x_dpy, egl_dpy,
+                 "pbuffer", 0, 0, WinWidth, WinHeight,
+                 &win, &egl_ctx, &egl_surf);
+
+   egl_pbuf = make_pbuffer(x_dpy, egl_dpy, WinWidth, WinHeight);
+   if (!egl_pbuf) {
+      printf("Error: eglCreatePBufferSurface() failed\n");
+      return -1;
+   }
+
+   XMapWindow(x_dpy, win);
+   if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+      printf("Error: eglMakeCurrent() failed\n");
+      return -1;
+   }
+
+   if (printInfo) {
+      printf("GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
+      printf("GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
+      printf("GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
+      printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
+   }
+
+   init();
+
+   /* Set initial projection/viewing transformation.
+    * We can't be sure we'll get a ConfigureNotify event when the window
+    * first appears.
+    */
+   reshape(WinWidth, WinHeight);
+
+   event_loop(x_dpy, win, egl_dpy, egl_surf, egl_pbuf, egl_ctx);
+
+   eglDestroyContext(egl_dpy, egl_ctx);
+   eglDestroySurface(egl_dpy, egl_surf);
+   eglTerminate(egl_dpy);
+
+
+   XDestroyWindow(x_dpy, win);
+   XCloseDisplay(x_dpy);
+
+   return 0;
+}
diff --git a/progs/es1/xegl/render_tex.c b/progs/es1/xegl/render_tex.c
new file mode 100644
index 0000000000..0d1027b712
--- /dev/null
+++ b/progs/es1/xegl/render_tex.c
@@ -0,0 +1,657 @@
+/*
+ * Copyright (C) 2008  Tunsgten Graphics,Inc.   All Rights Reserved.
+ */
+
+/*
+ * Test EGL render to texture.
+ * Brian Paul
+ * August 2008
+ */
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <EGL/egl.h>
+
+
+static int TexWidth = 256, TexHeight = 256;
+
+static int WinWidth = 300, WinHeight = 300;
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+
+static GLuint DotTexture, RenderTexture;
+
+
+static void
+Normal(GLfloat *n, GLfloat nx, GLfloat ny, GLfloat nz)
+{
+   n[0] = nx;
+   n[1] = ny;
+   n[2] = nz;
+}
+
+static void
+Vertex(GLfloat *v, GLfloat vx, GLfloat vy, GLfloat vz)
+{
+   v[0] = vx;
+   v[1] = vy;
+   v[2] = vz;
+}
+
+static void
+Texcoord(GLfloat *v, GLfloat s, GLfloat t)
+{
+   v[0] = s;
+   v[1] = t;
+}
+
+
+/* Borrowed from glut, adapted */
+static void
+draw_torus(GLfloat r, GLfloat R, GLint nsides, GLint rings)
+{
+   int i, j;
+   GLfloat theta, phi, theta1;
+   GLfloat cosTheta, sinTheta;
+   GLfloat cosTheta1, sinTheta1;
+   GLfloat ringDelta, sideDelta;
+   GLfloat varray[100][3], narray[100][3], tarray[100][2];
+   int vcount;
+
+   glVertexPointer(3, GL_FLOAT, 0, varray);
+   glNormalPointer(GL_FLOAT, 0, narray);
+   glTexCoordPointer(2, GL_FLOAT, 0, tarray);
+   glEnableClientState(GL_VERTEX_ARRAY);
+   glEnableClientState(GL_NORMAL_ARRAY);
+   glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+   
+   ringDelta = 2.0 * M_PI / rings;
+   sideDelta = 2.0 * M_PI / nsides;
+
+   theta = 0.0;
+   cosTheta = 1.0;
+   sinTheta = 0.0;
+   for (i = rings - 1; i >= 0; i--) {
+      theta1 = theta + ringDelta;
+      cosTheta1 = cos(theta1);
+      sinTheta1 = sin(theta1);
+
+      vcount = 0; /* glBegin(GL_QUAD_STRIP); */
+
+      phi = 0.0;
+      for (j = nsides; j >= 0; j--) {
+         GLfloat s0, s1, t;
+         GLfloat cosPhi, sinPhi, dist;
+
+         phi += sideDelta;
+         cosPhi = cos(phi);
+         sinPhi = sin(phi);
+         dist = R + r * cosPhi;
+
+         s0 = 20.0 * theta / (2.0 * M_PI);
+         s1 = 20.0 * theta1 / (2.0 * M_PI);
+         t = 8.0 * phi / (2.0 * M_PI);
+
+         Normal(narray[vcount], cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi);
+         Texcoord(tarray[vcount], s1, t);
+         Vertex(varray[vcount], cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi);
+         vcount++;
+
+         Normal(narray[vcount], cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi);
+         Texcoord(tarray[vcount], s0, t);
+         Vertex(varray[vcount], cosTheta * dist, -sinTheta * dist,  r * sinPhi);
+         vcount++;
+      }
+
+      /*glEnd();*/
+      assert(vcount <= 100);
+      glDrawArrays(GL_TRIANGLE_STRIP, 0, vcount);
+
+      theta = theta1;
+      cosTheta = cosTheta1;
+      sinTheta = sinTheta1;
+   }
+
+   glDisableClientState(GL_VERTEX_ARRAY);
+   glDisableClientState(GL_NORMAL_ARRAY);
+   glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+}
+
+
+static void
+draw_torus_to_texture(void)
+{
+   glViewport(0, 0, TexWidth, TexHeight);
+
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+   glFrustumf(-1, 1, -1, 1, 5.0, 60.0);
+   
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+   glTranslatef(0.0, 0.0, -15.0);
+
+   glClearColor(0.4, 0.4, 0.4, 0.0);
+   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+   glBindTexture(GL_TEXTURE_2D, DotTexture);
+
+   glEnable(GL_LIGHTING);
+
+   glPushMatrix();
+   glRotatef(view_roty, 0, 1, 0);
+   glScalef(0.5, 0.5, 0.5);
+
+   draw_torus(1.0, 3.0, 30, 60);
+
+   glPopMatrix();
+
+   glDisable(GL_LIGHTING);
+
+#if 0
+   glBindTexture(GL_TEXTURE_2D, RenderTexture);
+   glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, TexWidth, TexHeight);
+#endif
+
+   glFinish();
+}
+
+
+static void
+draw_textured_quad(void)
+{
+   GLfloat ar = (GLfloat) WinWidth / (GLfloat) WinHeight;
+
+   glViewport(0, 0, WinWidth, WinHeight);
+
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+   glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+   
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+   glTranslatef(0.0, 0.0, -8.0);
+
+   glClearColor(0.4, 0.4, 1.0, 0.0);
+   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+   glBindTexture(GL_TEXTURE_2D, RenderTexture);
+
+   glPushMatrix();
+   glRotatef(view_rotx, 1, 0, 0);
+   glRotatef(view_rotz, 0, 0, 1);
+
+   {
+      static const GLfloat texcoord[4][2] = {
+         { 0, 0 },  { 1, 0 },  { 0, 1 },  { 1, 1 }
+      };
+      static const GLfloat vertex[4][2] = {
+         { -1, -1 },  {  1, -1 },  { -1,  1 },  {  1,  1 }
+      };
+
+      glVertexPointer(2, GL_FLOAT, 0, vertex);
+      glTexCoordPointer(2, GL_FLOAT, 0, texcoord);
+      glEnableClientState(GL_VERTEX_ARRAY);
+      glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+  
+      glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+
+      glDisableClientState(GL_VERTEX_ARRAY);
+      glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+   }
+
+   glPopMatrix();
+}
+
+
+
+static void
+draw(EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf,
+     EGLContext egl_ctx)
+{
+   /*printf("Begin draw\n");*/
+
+   /* first draw torus to pbuffer /texture */
+#if 01
+   if (!eglMakeCurrent(egl_dpy, egl_pbuf, egl_pbuf, egl_ctx)) {
+#else
+   if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+#endif
+      printf("Error: eglMakeCurrent(pbuf) failed\n");
+      return;
+   }
+   glBindTexture(GL_TEXTURE_2D, RenderTexture);
+   eglBindTexImage(egl_dpy, egl_pbuf, EGL_BACK_BUFFER);
+   draw_torus_to_texture();
+   eglReleaseTexImage(egl_dpy, egl_pbuf, EGL_BACK_BUFFER);
+
+   /* draw textured quad to window */
+   if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+      printf("Error: eglMakeCurrent(pbuffer) failed\n");
+      return;
+   }
+   draw_textured_quad();
+   eglSwapBuffers(egl_dpy, egl_surf);
+
+   /*printf("End draw\n");*/
+}
+
+
+
+static void
+make_dot_texture(void)
+{
+#define SZ 64
+   GLenum Filter = GL_LINEAR;
+   GLubyte image[SZ][SZ][4];
+   GLuint i, j;
+
+   for (i = 0; i < SZ; i++) {
+      for (j = 0; j < SZ; j++) {
+         GLfloat d = (i - SZ/2) * (i - SZ/2) + (j - SZ/2) * (j - SZ/2);
+         d = sqrt(d);
+         if (d < SZ/3) {
+            image[i][j][0] = 255;
+            image[i][j][1] = 255;
+            image[i][j][2] = 255;
+            image[i][j][3] = 255;
+         }
+         else {
+            image[i][j][0] = 127;
+            image[i][j][1] = 127;
+            image[i][j][2] = 127;
+            image[i][j][3] = 255;
+         }
+      }
+   }
+
+   glGenTextures(1, &DotTexture);
+   glBindTexture(GL_TEXTURE_2D, DotTexture);
+   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0,
+                GL_RGBA, GL_UNSIGNED_BYTE, image);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+#undef SZ
+}
+
+
+static void
+make_render_texture(void)
+{
+   GLenum Filter = GL_LINEAR;
+   glGenTextures(1, &RenderTexture);
+   glBindTexture(GL_TEXTURE_2D, RenderTexture);
+   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TexWidth, TexHeight, 0,
+                GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+}
+
+
+static void
+init(void)
+{
+   static const GLfloat red[4] = {1, 0, 0, 0};
+   static const GLfloat white[4] = {1.0, 1.0, 1.0, 1.0};
+   static const GLfloat diffuse[4] = {0.7, 0.7, 0.7, 1.0};
+   static const GLfloat specular[4] = {0.001, 0.001, 0.001, 1.0};
+   static const GLfloat pos[4] = {20, 20, 50, 1};
+
+   glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
+   glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, white);
+   glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 9.0);
+
+   glEnable(GL_LIGHT0);
+   glLightfv(GL_LIGHT0, GL_POSITION, pos);
+   glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
+   glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
+
+   glEnable(GL_DEPTH_TEST);
+
+   make_dot_texture();
+   make_render_texture();
+
+   printf("DotTexture=%u RenderTexture=%u\n", DotTexture, RenderTexture);
+
+   glEnable(GL_TEXTURE_2D);
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+              const char *name,
+              int x, int y, int width, int height,
+              Window *winRet,
+              EGLContext *ctxRet,
+              EGLSurface *surfRet)
+{
+   static const EGLint attribs[] = {
+      EGL_RED_SIZE, 1,
+      EGL_GREEN_SIZE, 1,
+      EGL_BLUE_SIZE, 1,
+      EGL_DEPTH_SIZE, 1,
+      EGL_NONE
+   };
+
+   int scrnum;
+   XSetWindowAttributes attr;
+   unsigned long mask;
+   Window root;
+   Window win;
+   XVisualInfo *visInfo, visTemplate;
+   int num_visuals;
+   EGLContext ctx;
+   EGLConfig config;
+   EGLint num_configs;
+   EGLint vid;
+
+   scrnum = DefaultScreen( x_dpy );
+   root = RootWindow( x_dpy, scrnum );
+
+   if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+      printf("Error: couldn't get an EGL visual config\n");
+      exit(1);
+   }
+
+   assert(config);
+   assert(num_configs > 0);
+
+   if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+      printf("Error: eglGetConfigAttrib() failed\n");
+      exit(1);
+   }
+
+   /* The X window visual must match the EGL config */
+   visTemplate.visualid = vid;
+   visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+   if (!visInfo) {
+      printf("Error: couldn't get X visual\n");
+      exit(1);
+   }
+
+   /* window attributes */
+   attr.background_pixel = 0;
+   attr.border_pixel = 0;
+   attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+   attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+   mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+   win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+		        0, visInfo->depth, InputOutput,
+		        visInfo->visual, mask, &attr );
+
+   /* set hints and properties */
+   {
+      XSizeHints sizehints;
+      sizehints.x = x;
+      sizehints.y = y;
+      sizehints.width  = width;
+      sizehints.height = height;
+      sizehints.flags = USSize | USPosition;
+      XSetNormalHints(x_dpy, win, &sizehints);
+      XSetStandardProperties(x_dpy, win, name, name,
+                              None, (char **)NULL, 0, &sizehints);
+   }
+
+   eglBindAPI(EGL_OPENGL_ES_API);
+
+   ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+   if (!ctx) {
+      printf("Error: eglCreateContext failed\n");
+      exit(1);
+   }
+
+   *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+   if (!*surfRet) {
+      printf("Error: eglCreateWindowSurface failed\n");
+      exit(1);
+   }
+
+   XFree(visInfo);
+
+   *winRet = win;
+   *ctxRet = ctx;
+}
+
+
+static EGLSurface
+make_pbuffer(Display *x_dpy, EGLDisplay egl_dpy, int width, int height)
+{
+   static const EGLint config_attribs[] = {
+      EGL_RED_SIZE, 1,
+      EGL_GREEN_SIZE, 1,
+      EGL_BLUE_SIZE, 1,
+      EGL_DEPTH_SIZE, 1,
+      EGL_NONE
+   };
+   EGLConfig config;
+   EGLSurface pbuf;
+   EGLint num_configs;
+   EGLint pbuf_attribs[15];
+   int i = 0;
+
+   pbuf_attribs[i++] = EGL_WIDTH;
+   pbuf_attribs[i++] = width;
+   pbuf_attribs[i++] = EGL_HEIGHT;
+   pbuf_attribs[i++] = height;
+   pbuf_attribs[i++] = EGL_TEXTURE_FORMAT;
+   pbuf_attribs[i++] = EGL_TEXTURE_RGBA;
+   pbuf_attribs[i++] = EGL_TEXTURE_TARGET;
+   pbuf_attribs[i++] = EGL_TEXTURE_2D;
+   pbuf_attribs[i++] = EGL_MIPMAP_TEXTURE;
+   pbuf_attribs[i++] = EGL_FALSE;
+   pbuf_attribs[i++] = EGL_NONE;
+   assert(i <= 15);
+
+   if (!eglChooseConfig( egl_dpy, config_attribs, &config, 1, &num_configs)) {
+      printf("Error: couldn't get an EGL config for pbuffer\n");
+      exit(1);
+   }
+
+   pbuf = eglCreatePbufferSurface(egl_dpy, config, pbuf_attribs);
+
+   return pbuf;
+}
+
+
+static void
+event_loop(Display *dpy, Window win,
+           EGLDisplay egl_dpy, EGLSurface egl_surf, EGLSurface egl_pbuf,
+           EGLContext egl_ctx)
+{
+   int anim = 0;
+
+   while (1) {
+      int redraw = 0;
+
+      if (!anim || XPending(dpy)) {
+         XEvent event;
+         XNextEvent(dpy, &event);
+
+         switch (event.type) {
+         case Expose:
+            redraw = 1;
+            break;
+         case ConfigureNotify:
+            if (event.xconfigure.window == win) {
+               WinWidth = event.xconfigure.width;
+               WinHeight = event.xconfigure.height;
+            }
+            break;
+         case KeyPress:
+            {
+               char buffer[10];
+               int r, code;
+               code = XLookupKeysym(&event.xkey, 0);
+               if (code == XK_Left) {
+               view_roty += 5.0;
+               }
+               else if (code == XK_Right) {
+                  view_roty -= 5.0;
+               }
+               else if (code == XK_Up) {
+                  view_rotx += 5.0;
+               }
+               else if (code == XK_Down) {
+                  view_rotx -= 5.0;
+               }
+               else {
+                  r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+                                    NULL, NULL);
+                  if (buffer[0] == ' ') {
+                     anim = !anim;
+                  }
+                  else if (buffer[0] == 'z') {
+                     view_rotz += 5.0;
+                  }
+                  else if (buffer[0] == 'Z') {
+                     view_rotz -= 5.0;
+                  }
+                  else if (buffer[0] == 27) {
+                     /* escape */
+                     return;
+                  }
+               }
+            }
+            redraw = 1;
+            break;
+         default:
+            ; /*no-op*/
+         }
+      }
+
+      if (anim) {
+         view_rotx += 1.0;
+         view_roty += 2.0;
+         redraw = 1;
+      }
+
+      if (redraw) {
+         draw(egl_dpy, egl_surf, egl_pbuf, egl_ctx);
+      }
+   }
+}
+
+
+static void
+usage(void)
+{
+   printf("Usage:\n");
+   printf("  -display <displayname>  set the display to run on\n");
+   printf("  -info                   display OpenGL renderer info\n");
+}
+ 
+
+int
+main(int argc, char *argv[])
+{
+   Display *x_dpy;
+   Window win;
+   EGLSurface egl_surf, egl_pbuf;
+   EGLContext egl_ctx;
+   EGLDisplay egl_dpy;
+   char *dpyName = NULL;
+   GLboolean printInfo = GL_FALSE;
+   EGLint egl_major, egl_minor;
+   int i;
+   const char *s;
+
+   for (i = 1; i < argc; i++) {
+      if (strcmp(argv[i], "-display") == 0) {
+         dpyName = argv[i+1];
+         i++;
+      }
+      else if (strcmp(argv[i], "-info") == 0) {
+         printInfo = GL_TRUE;
+      }
+      else {
+         usage();
+         return -1;
+      }
+   }
+
+   x_dpy = XOpenDisplay(dpyName);
+   if (!x_dpy) {
+      printf("Error: couldn't open display %s\n",
+	     dpyName ? dpyName : getenv("DISPLAY"));
+      return -1;
+   }
+
+   egl_dpy = eglGetDisplay(x_dpy);
+   if (!egl_dpy) {
+      printf("Error: eglGetDisplay() failed\n");
+      return -1;
+   }
+
+   if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+      printf("Error: eglInitialize() failed\n");
+      return -1;
+   }
+
+   s = eglQueryString(egl_dpy, EGL_VERSION);
+   printf("EGL_VERSION = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_VENDOR);
+   printf("EGL_VENDOR = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+   printf("EGL_EXTENSIONS = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+   printf("EGL_CLIENT_APIS = %s\n", s);
+
+   make_x_window(x_dpy, egl_dpy,
+                 "render_tex", 0, 0, WinWidth, WinHeight,
+                 &win, &egl_ctx, &egl_surf);
+
+   egl_pbuf = make_pbuffer(x_dpy, egl_dpy, TexWidth, TexHeight);
+   if (!egl_pbuf) {
+      printf("Error: eglCreatePBufferSurface() failed\n");
+      return -1;
+   }
+
+   XMapWindow(x_dpy, win);
+   if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+      printf("Error: eglMakeCurrent() failed\n");
+      return -1;
+   }
+
+   if (printInfo) {
+      printf("GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
+      printf("GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
+      printf("GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
+      printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
+   }
+
+   init();
+
+   event_loop(x_dpy, win, egl_dpy, egl_surf, egl_pbuf, egl_ctx);
+
+   eglDestroyContext(egl_dpy, egl_ctx);
+   eglDestroySurface(egl_dpy, egl_surf);
+   eglTerminate(egl_dpy);
+
+
+   XDestroyWindow(x_dpy, win);
+   XCloseDisplay(x_dpy);
+
+   return 0;
+}
diff --git a/progs/es1/xegl/torus.c b/progs/es1/xegl/torus.c
new file mode 100644
index 0000000000..634d12641c
--- /dev/null
+++ b/progs/es1/xegl/torus.c
@@ -0,0 +1,509 @@
+/*
+ * Copyright (C) 2008  Tunsgten Graphics,Inc.   All Rights Reserved.
+ */
+
+/*
+ * Draw a lit, textured torus with X/EGL and OpenGL ES 1.x
+ * Brian Paul
+ * July 2008
+ */
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <EGL/egl.h>
+
+
+
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+
+
+static void
+Normal(GLfloat *n, GLfloat nx, GLfloat ny, GLfloat nz)
+{
+   n[0] = nx;
+   n[1] = ny;
+   n[2] = nz;
+}
+
+static void
+Vertex(GLfloat *v, GLfloat vx, GLfloat vy, GLfloat vz)
+{
+   v[0] = vx;
+   v[1] = vy;
+   v[2] = vz;
+}
+
+static void
+Texcoord(GLfloat *v, GLfloat s, GLfloat t)
+{
+   v[0] = s;
+   v[1] = t;
+}
+
+
+/* Borrowed from glut, adapted */
+static void
+draw_torus(GLfloat r, GLfloat R, GLint nsides, GLint rings)
+{
+   int i, j;
+   GLfloat theta, phi, theta1;
+   GLfloat cosTheta, sinTheta;
+   GLfloat cosTheta1, sinTheta1;
+   GLfloat ringDelta, sideDelta;
+   GLfloat varray[100][3], narray[100][3], tarray[100][2];
+   int vcount;
+
+   glVertexPointer(3, GL_FLOAT, 0, varray);
+   glNormalPointer(GL_FLOAT, 0, narray);
+   glTexCoordPointer(2, GL_FLOAT, 0, tarray);
+   glEnableClientState(GL_VERTEX_ARRAY);
+   glEnableClientState(GL_NORMAL_ARRAY);
+   glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+   
+   ringDelta = 2.0 * M_PI / rings;
+   sideDelta = 2.0 * M_PI / nsides;
+
+   theta = 0.0;
+   cosTheta = 1.0;
+   sinTheta = 0.0;
+   for (i = rings - 1; i >= 0; i--) {
+      theta1 = theta + ringDelta;
+      cosTheta1 = cos(theta1);
+      sinTheta1 = sin(theta1);
+
+      vcount = 0; /* glBegin(GL_QUAD_STRIP); */
+
+      phi = 0.0;
+      for (j = nsides; j >= 0; j--) {
+         GLfloat s0, s1, t;
+         GLfloat cosPhi, sinPhi, dist;
+
+         phi += sideDelta;
+         cosPhi = cos(phi);
+         sinPhi = sin(phi);
+         dist = R + r * cosPhi;
+
+         s0 = 20.0 * theta / (2.0 * M_PI);
+         s1 = 20.0 * theta1 / (2.0 * M_PI);
+         t = 8.0 * phi / (2.0 * M_PI);
+
+         Normal(narray[vcount], cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi);
+         Texcoord(tarray[vcount], s1, t);
+         Vertex(varray[vcount], cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi);
+         vcount++;
+
+         Normal(narray[vcount], cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi);
+         Texcoord(tarray[vcount], s0, t);
+         Vertex(varray[vcount], cosTheta * dist, -sinTheta * dist,  r * sinPhi);
+         vcount++;
+      }
+
+      /*glEnd();*/
+      assert(vcount <= 100);
+      glDrawArrays(GL_TRIANGLE_STRIP, 0, vcount);
+
+      theta = theta1;
+      cosTheta = cosTheta1;
+      sinTheta = sinTheta1;
+   }
+
+   glDisableClientState(GL_VERTEX_ARRAY);
+   glDisableClientState(GL_NORMAL_ARRAY);
+   glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+}
+
+
+static void
+draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+   glPushMatrix();
+   glRotatef(view_rotx, 1, 0, 0);
+   glRotatef(view_roty, 0, 1, 0);
+   glRotatef(view_rotz, 0, 0, 1);
+   glScalef(0.5, 0.5, 0.5);
+
+   draw_torus(1.0, 3.0, 30, 60);
+
+   glPopMatrix();
+}
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+   GLfloat ar = (GLfloat) width / (GLfloat) height;
+
+   glViewport(0, 0, (GLint) width, (GLint) height);
+
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+
+#ifdef GL_VERSION_ES_CM_1_0
+   glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+#else
+   glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
+#endif
+   
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+   glTranslatef(0.0, 0.0, -15.0);
+}
+
+
+static void
+make_texture(void)
+{
+#define SZ 64
+   GLenum Filter = GL_LINEAR;
+   GLubyte image[SZ][SZ][4];
+   GLuint i, j;
+
+   for (i = 0; i < SZ; i++) {
+      for (j = 0; j < SZ; j++) {
+         GLfloat d = (i - SZ/2) * (i - SZ/2) + (j - SZ/2) * (j - SZ/2);
+         d = sqrt(d);
+         if (d < SZ/3) {
+            image[i][j][0] = 255;
+            image[i][j][1] = 255;
+            image[i][j][2] = 255;
+            image[i][j][3] = 255;
+         }
+         else {
+            image[i][j][0] = 127;
+            image[i][j][1] = 127;
+            image[i][j][2] = 127;
+            image[i][j][3] = 255;
+         }
+      }
+   }
+
+   glActiveTexture(GL_TEXTURE0); /* unit 0 */
+   glBindTexture(GL_TEXTURE_2D, 42);
+   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SZ, SZ, 0,
+                GL_RGBA, GL_UNSIGNED_BYTE, image);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, Filter);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, Filter);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+#undef SZ
+}
+
+
+
+static void
+init(void)
+{
+   static const GLfloat red[4] = {1, 0, 0, 0};
+   static const GLfloat white[4] = {1.0, 1.0, 1.0, 1.0};
+   static const GLfloat diffuse[4] = {0.7, 0.7, 0.7, 1.0};
+   static const GLfloat specular[4] = {0.001, 0.001, 0.001, 1.0};
+   static const GLfloat pos[4] = {20, 20, 50, 1};
+
+   glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
+   glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, white);
+   glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 9.0);
+
+   glEnable(GL_LIGHTING);
+   glEnable(GL_LIGHT0);
+   glLightfv(GL_LIGHT0, GL_POSITION, pos);
+   glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
+   glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
+
+   glClearColor(0.4, 0.4, 0.4, 0.0);
+   glEnable(GL_DEPTH_TEST);
+
+   make_texture();
+   glEnable(GL_TEXTURE_2D);
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+              const char *name,
+              int x, int y, int width, int height,
+              Window *winRet,
+              EGLContext *ctxRet,
+              EGLSurface *surfRet)
+{
+   static const EGLint attribs[] = {
+      EGL_RED_SIZE, 1,
+      EGL_GREEN_SIZE, 1,
+      EGL_BLUE_SIZE, 1,
+      EGL_DEPTH_SIZE, 1,
+      EGL_NONE
+   };
+
+   int scrnum;
+   XSetWindowAttributes attr;
+   unsigned long mask;
+   Window root;
+   Window win;
+   XVisualInfo *visInfo, visTemplate;
+   int num_visuals;
+   EGLContext ctx;
+   EGLConfig config;
+   EGLint num_configs;
+   EGLint vid;
+
+   scrnum = DefaultScreen( x_dpy );
+   root = RootWindow( x_dpy, scrnum );
+
+   if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+      printf("Error: couldn't get an EGL visual config\n");
+      exit(1);
+   }
+
+   assert(config);
+   assert(num_configs > 0);
+
+   if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+      printf("Error: eglGetConfigAttrib() failed\n");
+      exit(1);
+   }
+
+   /* The X window visual must match the EGL config */
+   visTemplate.visualid = vid;
+   visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+   if (!visInfo) {
+      printf("Error: couldn't get X visual\n");
+      exit(1);
+   }
+
+   /* window attributes */
+   attr.background_pixel = 0;
+   attr.border_pixel = 0;
+   attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+   attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+   mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+   win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+		        0, visInfo->depth, InputOutput,
+		        visInfo->visual, mask, &attr );
+
+   /* set hints and properties */
+   {
+      XSizeHints sizehints;
+      sizehints.x = x;
+      sizehints.y = y;
+      sizehints.width  = width;
+      sizehints.height = height;
+      sizehints.flags = USSize | USPosition;
+      XSetNormalHints(x_dpy, win, &sizehints);
+      XSetStandardProperties(x_dpy, win, name, name,
+                              None, (char **)NULL, 0, &sizehints);
+   }
+
+   eglBindAPI(EGL_OPENGL_ES_API);
+
+   ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+   if (!ctx) {
+      printf("Error: eglCreateContext failed\n");
+      exit(1);
+   }
+
+   *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+   if (!*surfRet) {
+      printf("Error: eglCreateWindowSurface failed\n");
+      exit(1);
+   }
+
+   XFree(visInfo);
+
+   *winRet = win;
+   *ctxRet = ctx;
+}
+
+
+static void
+event_loop(Display *dpy, Window win,
+           EGLDisplay egl_dpy, EGLSurface egl_surf)
+{
+   int anim = 1;
+
+   while (1) {
+      int redraw = 0;
+
+      if (!anim || XPending(dpy)) {
+         XEvent event;
+         XNextEvent(dpy, &event);
+
+         switch (event.type) {
+         case Expose:
+            redraw = 1;
+            break;
+         case ConfigureNotify:
+            reshape(event.xconfigure.width, event.xconfigure.height);
+            break;
+         case KeyPress:
+            {
+               char buffer[10];
+               int r, code;
+               code = XLookupKeysym(&event.xkey, 0);
+               if (code == XK_Left) {
+               view_roty += 5.0;
+               }
+               else if (code == XK_Right) {
+                  view_roty -= 5.0;
+               }
+               else if (code == XK_Up) {
+                  view_rotx += 5.0;
+               }
+               else if (code == XK_Down) {
+                  view_rotx -= 5.0;
+               }
+               else {
+                  r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+                                    NULL, NULL);
+                  if (buffer[0] == ' ') {
+                     anim = !anim;
+                  }
+                  else if (buffer[0] == 27) {
+                     /* escape */
+                     return;
+                  }
+               }
+            }
+            redraw = 1;
+            break;
+         default:
+            ; /*no-op*/
+         }
+      }
+
+      if (anim) {
+         view_rotx += 1.0;
+         view_roty += 2.0;
+         redraw = 1;
+      }
+
+      if (redraw) {
+         draw();
+         eglSwapBuffers(egl_dpy, egl_surf);
+      }
+   }
+}
+
+
+static void
+usage(void)
+{
+   printf("Usage:\n");
+   printf("  -display <displayname>  set the display to run on\n");
+   printf("  -info                   display OpenGL renderer info\n");
+}
+ 
+
+int
+main(int argc, char *argv[])
+{
+   const int winWidth = 300, winHeight = 300;
+   Display *x_dpy;
+   Window win;
+   EGLSurface egl_surf;
+   EGLContext egl_ctx;
+   EGLDisplay egl_dpy;
+   char *dpyName = NULL;
+   GLboolean printInfo = GL_FALSE;
+   EGLint egl_major, egl_minor;
+   int i;
+   const char *s;
+
+   for (i = 1; i < argc; i++) {
+      if (strcmp(argv[i], "-display") == 0) {
+         dpyName = argv[i+1];
+         i++;
+      }
+      else if (strcmp(argv[i], "-info") == 0) {
+         printInfo = GL_TRUE;
+      }
+      else {
+         usage();
+         return -1;
+      }
+   }
+
+   x_dpy = XOpenDisplay(dpyName);
+   if (!x_dpy) {
+      printf("Error: couldn't open display %s\n",
+	     dpyName ? dpyName : getenv("DISPLAY"));
+      return -1;
+   }
+
+   egl_dpy = eglGetDisplay(x_dpy);
+   if (!egl_dpy) {
+      printf("Error: eglGetDisplay() failed\n");
+      return -1;
+   }
+
+   if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+      printf("Error: eglInitialize() failed\n");
+      return -1;
+   }
+
+   s = eglQueryString(egl_dpy, EGL_VERSION);
+   printf("EGL_VERSION = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_VENDOR);
+   printf("EGL_VENDOR = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+   printf("EGL_EXTENSIONS = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+   printf("EGL_CLIENT_APIS = %s\n", s);
+
+   make_x_window(x_dpy, egl_dpy,
+                 "torus", 0, 0, winWidth, winHeight,
+                 &win, &egl_ctx, &egl_surf);
+
+   XMapWindow(x_dpy, win);
+   if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+      printf("Error: eglMakeCurrent() failed\n");
+      return -1;
+   }
+
+   if (printInfo) {
+      printf("GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
+      printf("GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
+      printf("GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
+      printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
+   }
+
+   init();
+
+   /* Set initial projection/viewing transformation.
+    * We can't be sure we'll get a ConfigureNotify event when the window
+    * first appears.
+    */
+   reshape(winWidth, winHeight);
+
+   event_loop(x_dpy, win, egl_dpy, egl_surf);
+
+   eglDestroyContext(egl_dpy, egl_ctx);
+   eglDestroySurface(egl_dpy, egl_surf);
+   eglTerminate(egl_dpy);
+
+
+   XDestroyWindow(x_dpy, win);
+   XCloseDisplay(x_dpy);
+
+   return 0;
+}
diff --git a/progs/es1/xegl/tri.c b/progs/es1/xegl/tri.c
new file mode 100644
index 0000000000..ca37c2d0ba
--- /dev/null
+++ b/progs/es1/xegl/tri.c
@@ -0,0 +1,473 @@
+/*
+ * Copyright (C) 2008  Brian Paul   All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Draw a triangle with X/EGL and OpenGL ES 1.x
+ * Brian Paul
+ * 5 June 2008
+ */
+
+#define USE_FULL_GL 0
+
+#define USE_FIXED_POINT 0
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#if USE_FULL_GL
+#include <GL/gl.h>  /* use full OpenGL */
+#else
+#include <GLES/gl.h>  /* use OpenGL ES 1.x */
+#include <GLES/glext.h>
+#endif
+#include <EGL/egl.h>
+
+
+#define FLOAT_TO_FIXED(X)   ((X) * 65535.0)
+
+
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+
+
+static void
+draw(void)
+{
+#if USE_FIXED_POINT
+   static const GLfixed verts[3][2] = {
+      { -65536, -65536 },
+      {  65536, -65536 },
+      {      0,  65536 }
+   };
+   static const GLfixed colors[3][4] = {
+      { 65536,     0,     0,    65536 },
+      {     0, 65536,     0 ,   65536},
+      {     0,     0, 65536 ,   65536}
+   };
+#else
+   static const GLfloat verts[3][2] = {
+      { -1, -1 },
+      {  1, -1 },
+      {  0,  1 }
+   };
+   static const GLfloat colors[3][4] = {
+      { 1, 0, 0, 1 },
+      { 0, 1, 0, 1 },
+      { 0, 0, 1, 1 }
+   };
+#endif
+
+   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+   glPushMatrix();
+   glRotatef(view_rotx, 1, 0, 0);
+   glRotatef(view_roty, 0, 1, 0);
+   glRotatef(view_rotz, 0, 0, 1);
+
+   {
+#if USE_FIXED_POINT
+      glVertexPointer(2, GL_FIXED, 0, verts);
+      glColorPointer(4, GL_FIXED, 0, colors);
+#else
+      glVertexPointer(2, GL_FLOAT, 0, verts);
+      glColorPointer(4, GL_FLOAT, 0, colors);
+#endif
+      glEnableClientState(GL_VERTEX_ARRAY);
+      glEnableClientState(GL_COLOR_ARRAY);
+
+      /* draw triangle */
+      glDrawArrays(GL_TRIANGLES, 0, 3);
+
+      /* draw some points */
+      glPointSizex(FLOAT_TO_FIXED(15.5));
+      glDrawArrays(GL_POINTS, 0, 3);
+
+      glDisableClientState(GL_VERTEX_ARRAY);
+      glDisableClientState(GL_COLOR_ARRAY);
+   }
+
+   if (0) {
+      /* test code */
+      GLfixed size;
+      glGetFixedv(GL_POINT_SIZE, &size);
+      printf("GL_POINT_SIZE = 0x%x %f\n", size, size / 65536.0);
+   }
+
+   glPopMatrix();
+}
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+   GLfloat ar = (GLfloat) width / (GLfloat) height;
+
+   glViewport(0, 0, (GLint) width, (GLint) height);
+
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+#ifdef GL_VERSION_ES_CM_1_0
+   glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+#else
+   glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
+#endif
+   
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+   glTranslatef(0.0, 0.0, -10.0);
+}
+
+
+static void
+test_query_matrix(void)
+{
+   PFNGLQUERYMATRIXXOESPROC procQueryMatrixx;
+   typedef void (*voidproc)();
+   GLfixed mantissa[16];
+   GLint exponent[16];
+   GLbitfield rv;
+   int i;
+   voidproc p = eglGetProcAddress("eglCreateContext");
+
+   assert(p);
+   procQueryMatrixx = (PFNGLQUERYMATRIXXOESPROC) eglGetProcAddress("glQueryMatrixxOES");
+   assert(procQueryMatrixx);
+   /* Actually try out this one */
+   rv = (*procQueryMatrixx)(mantissa, exponent);
+   for (i = 0; i < 16; i++) {
+      if (rv & (1<<i)) {
+        printf("matrix[%d] invalid\n", i);
+      }
+      else {
+         printf("matrix[%d] = %f * 2^(%d)\n", i, mantissa[i]/65536.0, exponent[i]);
+      }
+   }
+   p = eglGetProcAddress("glFoo");
+   assert(!p);
+}
+
+
+static void
+init(void)
+{
+   glClearColor(0.4, 0.4, 0.4, 0.0);
+
+   if (0)
+      test_query_matrix();
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+              const char *name,
+              int x, int y, int width, int height,
+              Window *winRet,
+              EGLContext *ctxRet,
+              EGLSurface *surfRet)
+{
+   static const EGLint attribs[] = {
+      EGL_RED_SIZE, 1,
+      EGL_GREEN_SIZE, 1,
+      EGL_BLUE_SIZE, 1,
+      EGL_DEPTH_SIZE, 1,
+      EGL_NONE
+   };
+
+   int scrnum;
+   XSetWindowAttributes attr;
+   unsigned long mask;
+   Window root;
+   Window win;
+   XVisualInfo *visInfo, visTemplate;
+   int num_visuals;
+   EGLContext ctx;
+   EGLConfig config;
+   EGLint num_configs;
+   EGLint vid;
+
+   scrnum = DefaultScreen( x_dpy );
+   root = RootWindow( x_dpy, scrnum );
+
+   if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+      printf("Error: couldn't get an EGL visual config\n");
+      exit(1);
+   }
+
+   assert(config);
+   assert(num_configs > 0);
+
+   if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+      printf("Error: eglGetConfigAttrib() failed\n");
+      exit(1);
+   }
+
+   /* The X window visual must match the EGL config */
+   visTemplate.visualid = vid;
+   visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+   if (!visInfo) {
+      printf("Error: couldn't get X visual\n");
+      exit(1);
+   }
+
+   /* window attributes */
+   attr.background_pixel = 0;
+   attr.border_pixel = 0;
+   attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+   attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+   mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+   win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+		        0, visInfo->depth, InputOutput,
+		        visInfo->visual, mask, &attr );
+
+   /* set hints and properties */
+   {
+      XSizeHints sizehints;
+      sizehints.x = x;
+      sizehints.y = y;
+      sizehints.width  = width;
+      sizehints.height = height;
+      sizehints.flags = USSize | USPosition;
+      XSetNormalHints(x_dpy, win, &sizehints);
+      XSetStandardProperties(x_dpy, win, name, name,
+                              None, (char **)NULL, 0, &sizehints);
+   }
+
+#if USE_FULL_GL
+   eglBindAPI(EGL_OPENGL_API);
+#else
+   eglBindAPI(EGL_OPENGL_ES_API);
+#endif
+
+   ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+   if (!ctx) {
+      printf("Error: eglCreateContext failed\n");
+      exit(1);
+   }
+
+   *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+   if (!*surfRet) {
+      printf("Error: eglCreateWindowSurface failed\n");
+      exit(1);
+   }
+
+   XFree(visInfo);
+
+   *winRet = win;
+   *ctxRet = ctx;
+}
+
+
+static void
+event_loop(Display *dpy, Window win,
+           EGLDisplay egl_dpy, EGLSurface egl_surf)
+{
+   while (1) {
+      int redraw = 0;
+      XEvent event;
+
+      XNextEvent(dpy, &event);
+
+      switch (event.type) {
+      case Expose:
+         redraw = 1;
+         break;
+      case ConfigureNotify:
+         reshape(event.xconfigure.width, event.xconfigure.height);
+         break;
+      case KeyPress:
+         {
+            char buffer[10];
+            int r, code;
+            code = XLookupKeysym(&event.xkey, 0);
+            if (code == XK_Left) {
+               view_roty += 5.0;
+            }
+            else if (code == XK_Right) {
+               view_roty -= 5.0;
+            }
+            else if (code == XK_Up) {
+               view_rotx += 5.0;
+            }
+            else if (code == XK_Down) {
+               view_rotx -= 5.0;
+            }
+            else {
+               r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+                                 NULL, NULL);
+               if (buffer[0] == 27) {
+                  /* escape */
+                  return;
+               }
+            }
+         }
+         redraw = 1;
+         break;
+      default:
+         ; /*no-op*/
+      }
+
+      if (redraw) {
+         draw();
+         eglSwapBuffers(egl_dpy, egl_surf);
+      }
+   }
+}
+
+
+static void
+usage(void)
+{
+   printf("Usage:\n");
+   printf("  -display <displayname>  set the display to run on\n");
+   printf("  -info                   display OpenGL renderer info\n");
+}
+ 
+
+int
+main(int argc, char *argv[])
+{
+   const int winWidth = 300, winHeight = 300;
+   Display *x_dpy;
+   Window win;
+   EGLSurface egl_surf;
+   EGLContext egl_ctx;
+   EGLDisplay egl_dpy;
+   char *dpyName = NULL;
+   GLboolean printInfo = GL_FALSE;
+   EGLint egl_major, egl_minor;
+   int i;
+   const char *s;
+
+   static struct {
+      char *name;
+      GLenum value;
+      enum {GetString, GetInteger} type;
+   } info_items[] = {
+      {"GL_RENDERER", GL_RENDERER, GetString},
+      {"GL_VERSION", GL_VERSION, GetString},
+      {"GL_VENDOR", GL_VENDOR, GetString},
+      {"GL_EXTENSIONS", GL_EXTENSIONS, GetString},
+      {"GL_MAX_PALETTE_MATRICES_OES", GL_MAX_PALETTE_MATRICES_OES, GetInteger},
+      {"GL_MAX_VERTEX_UNITS_OES", GL_MAX_VERTEX_UNITS_OES, GetInteger},
+   };
+
+   for (i = 1; i < argc; i++) {
+      if (strcmp(argv[i], "-display") == 0) {
+         dpyName = argv[i+1];
+         i++;
+      }
+      else if (strcmp(argv[i], "-info") == 0) {
+         printInfo = GL_TRUE;
+      }
+      else {
+         usage();
+         return -1;
+      }
+   }
+
+   x_dpy = XOpenDisplay(dpyName);
+   if (!x_dpy) {
+      printf("Error: couldn't open display %s\n",
+	     dpyName ? dpyName : getenv("DISPLAY"));
+      return -1;
+   }
+
+   egl_dpy = eglGetDisplay(x_dpy);
+   if (!egl_dpy) {
+      printf("Error: eglGetDisplay() failed\n");
+      return -1;
+   }
+
+   if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+      printf("Error: eglInitialize() failed\n");
+      return -1;
+   }
+
+   s = eglQueryString(egl_dpy, EGL_VERSION);
+   printf("EGL_VERSION = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_VENDOR);
+   printf("EGL_VENDOR = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+   printf("EGL_EXTENSIONS = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+   printf("EGL_CLIENT_APIS = %s\n", s);
+
+   make_x_window(x_dpy, egl_dpy,
+                 "tri", 0, 0, winWidth, winHeight,
+                 &win, &egl_ctx, &egl_surf);
+
+   XMapWindow(x_dpy, win);
+   if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+      printf("Error: eglMakeCurrent() failed\n");
+      return -1;
+   }
+
+   if (printInfo) {
+      for (i = 0; i < sizeof(info_items)/sizeof(info_items[0]); i++) {
+         switch (info_items[i].type) {
+            case GetString:
+               printf("%s = %s\n", info_items[i].name, (char *)glGetString(info_items[i].value));
+               break;
+            case GetInteger: {
+               GLint rv = -1;
+               glGetIntegerv(info_items[i].value, &rv);
+               printf("%s = %d\n", info_items[i].name, rv);
+               break;
+            }
+         }
+      }
+   };
+   init();
+
+   /* Set initial projection/viewing transformation.
+    * We can't be sure we'll get a ConfigureNotify event when the window
+    * first appears.
+    */
+   reshape(winWidth, winHeight);
+
+   event_loop(x_dpy, win, egl_dpy, egl_surf);
+
+   eglDestroyContext(egl_dpy, egl_ctx);
+   eglDestroySurface(egl_dpy, egl_surf);
+   eglTerminate(egl_dpy);
+
+
+   XDestroyWindow(x_dpy, win);
+   XCloseDisplay(x_dpy);
+
+   return 0;
+}
diff --git a/progs/es1/xegl/two_win.c b/progs/es1/xegl/two_win.c
new file mode 100644
index 0000000000..4785e5304d
--- /dev/null
+++ b/progs/es1/xegl/two_win.c
@@ -0,0 +1,433 @@
+/*
+ * Copyright (C) 2008  Brian Paul   All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Test drawing to two windows.
+ * Brian Paul
+ * August 2008
+ */
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <GLES/gl.h>
+#include <GLES/glext.h>
+#include <EGL/egl.h>
+
+
+static int WinWidth[2] = {150, 300}, WinHeight[2] = {150, 300};
+
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+   GLfloat ar = (GLfloat) width / (GLfloat) height;
+
+   glViewport(0, 0, (GLint) width, (GLint) height);
+
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+#ifdef GL_VERSION_ES_CM_1_0
+   glFrustumf(-ar, ar, -1, 1, 5.0, 60.0);
+#else
+   glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
+#endif
+   
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+   glTranslatef(0.0, 0.0, -10.0);
+}
+
+
+static void
+draw(int win)
+{
+   static const GLfloat verts[3][2] = {
+      { -1, -1 },
+      {  1, -1 },
+      {  0,  1 }
+   };
+   static const GLfloat colors[3][4] = {
+      { 1, 0, 0, 1 },
+      { 0, 1, 0, 1 },
+      { 0, 0, 1, 1 }
+   };
+
+   assert(win == 0 || win == 1);
+
+   reshape(WinWidth[win], WinHeight[win]);
+
+   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+   glPushMatrix();
+   glRotatef(view_rotx, 1, 0, 0);
+   glRotatef(view_roty, 0, 1, 0);
+   glRotatef(view_rotz, 0, 0, 1);
+
+   /* draw triangle */
+   {
+      glVertexPointer(2, GL_FLOAT, 0, verts);
+      glColorPointer(4, GL_FLOAT, 0, colors);
+
+      glEnableClientState(GL_VERTEX_ARRAY);
+      glEnableClientState(GL_COLOR_ARRAY);
+
+      glDrawArrays(GL_TRIANGLES, 0, 3);
+
+      glDisableClientState(GL_VERTEX_ARRAY);
+      glDisableClientState(GL_COLOR_ARRAY);
+   }
+
+   glPopMatrix();
+}
+
+
+static void
+init(void)
+{
+   glClearColor(0.4, 0.4, 0.4, 0.0);
+}
+
+
+/*
+ * Create an RGB, double-buffered X window.
+ * Return the window and context handles.
+ */
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+              const char *name,
+              int x, int y, int width, int height,
+              Window *winRet,
+              EGLContext *ctxRet,
+              EGLSurface *surfRet)
+{
+   static const EGLint attribs[] = {
+      EGL_RED_SIZE, 1,
+      EGL_GREEN_SIZE, 1,
+      EGL_BLUE_SIZE, 1,
+      EGL_DEPTH_SIZE, 1,
+      EGL_NONE
+   };
+
+   int scrnum;
+   XSetWindowAttributes attr;
+   unsigned long mask;
+   Window root;
+   Window win;
+   XVisualInfo *visInfo, visTemplate;
+   int num_visuals;
+   EGLContext ctx;
+   EGLConfig config;
+   EGLint num_configs;
+   EGLint vid;
+
+   scrnum = DefaultScreen( x_dpy );
+   root = RootWindow( x_dpy, scrnum );
+
+   if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+      printf("Error: couldn't get an EGL visual config\n");
+      exit(1);
+   }
+
+   assert(config);
+   assert(num_configs > 0);
+
+   if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+      printf("Error: eglGetConfigAttrib() failed\n");
+      exit(1);
+   }
+
+   /* The X window visual must match the EGL config */
+   visTemplate.visualid = vid;
+   visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+   if (!visInfo) {
+      printf("Error: couldn't get X visual\n");
+      exit(1);
+   }
+
+   /* window attributes */
+   attr.background_pixel = 0;
+   attr.border_pixel = 0;
+   attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+   attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+   mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+   win = XCreateWindow( x_dpy, root, x, y, width, height,
+		        0, visInfo->depth, InputOutput,
+		        visInfo->visual, mask, &attr );
+
+   /* set hints and properties */
+   {
+      XSizeHints sizehints;
+      sizehints.x = x;
+      sizehints.y = y;
+      sizehints.width  = width;
+      sizehints.height = height;
+      sizehints.flags = USSize | USPosition;
+      XSetNormalHints(x_dpy, win, &sizehints);
+      XSetStandardProperties(x_dpy, win, name, name,
+                              None, (char **)NULL, 0, &sizehints);
+   }
+
+#if USE_FULL_GL
+   eglBindAPI(EGL_OPENGL_API);
+#else
+   eglBindAPI(EGL_OPENGL_ES_API);
+#endif
+
+   if (ctxRet) {
+      ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, NULL );
+      if (!ctx) {
+         printf("Error: eglCreateContext failed\n");
+         exit(1);
+      }
+      *ctxRet = ctx;
+   }
+
+   *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+
+   if (!*surfRet) {
+      printf("Error: eglCreateWindowSurface failed\n");
+      exit(1);
+   }
+
+   XFree(visInfo);
+
+   *winRet = win;
+}
+
+
+static void
+event_loop(Display *dpy, Window win1, Window win2,
+           EGLDisplay egl_dpy, EGLSurface egl_surf1, EGLSurface egl_surf2,
+           EGLContext egl_ctx)
+{
+   while (1) {
+      int redraw = 0;
+      int win;
+      XEvent event;
+
+      XNextEvent(dpy, &event);
+
+      switch (event.type) {
+      case Expose:
+         redraw = 1;
+         break;
+      case ConfigureNotify:
+         if (event.xconfigure.window == win1)
+            win = 0;
+         else
+            win = 1;
+         WinWidth[win] = event.xconfigure.width;
+         WinHeight[win] = event.xconfigure.height;
+         break;
+      case KeyPress:
+         {
+            char buffer[10];
+            int r, code;
+            code = XLookupKeysym(&event.xkey, 0);
+            if (code == XK_Left) {
+               view_roty += 5.0;
+            }
+            else if (code == XK_Right) {
+               view_roty -= 5.0;
+            }
+            else if (code == XK_Up) {
+               view_rotx += 5.0;
+            }
+            else if (code == XK_Down) {
+               view_rotx -= 5.0;
+            }
+            else {
+               r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+                                 NULL, NULL);
+               if (buffer[0] == 27) {
+                  /* escape */
+                  return;
+               }
+            }
+         }
+         redraw = 1;
+         break;
+      default:
+         ; /*no-op*/
+      }
+
+      if (redraw) {
+         /* win 1 */
+         if (!eglMakeCurrent(egl_dpy, egl_surf1, egl_surf1, egl_ctx)) {
+            printf("Error: eglMakeCurrent(1) failed\n");
+            return;
+         }
+         draw(0);
+         eglSwapBuffers(egl_dpy, egl_surf1);
+
+         /* win 2 */
+         if (!eglMakeCurrent(egl_dpy, egl_surf2, egl_surf2, egl_ctx)) {
+            printf("Error: eglMakeCurrent(2) failed\n");
+            return;
+         }
+         draw(1);
+         eglSwapBuffers(egl_dpy, egl_surf2);
+      }
+   }
+}
+
+
+static void
+usage(void)
+{
+   printf("Usage:\n");
+   printf("  -display <displayname>  set the display to run on\n");
+   printf("  -info                   display OpenGL renderer info\n");
+}
+ 
+
+int
+main(int argc, char *argv[])
+{
+   Display *x_dpy;
+   Window win1, win2;
+   EGLSurface egl_surf1, egl_surf2;
+   EGLContext egl_ctx;
+   EGLDisplay egl_dpy;
+   char *dpyName = NULL;
+   GLboolean printInfo = GL_FALSE;
+   EGLint egl_major, egl_minor;
+   int i;
+   const char *s;
+
+   static struct {
+      char *name;
+      GLenum value;
+      enum {GetString, GetInteger} type;
+   } info_items[] = {
+      {"GL_RENDERER", GL_RENDERER, GetString},
+      {"GL_VERSION", GL_VERSION, GetString},
+      {"GL_VENDOR", GL_VENDOR, GetString},
+      {"GL_EXTENSIONS", GL_EXTENSIONS, GetString},
+      {"GL_MAX_PALETTE_MATRICES_OES", GL_MAX_PALETTE_MATRICES_OES, GetInteger},
+      {"GL_MAX_VERTEX_UNITS_OES", GL_MAX_VERTEX_UNITS_OES, GetInteger},
+   };
+
+   for (i = 1; i < argc; i++) {
+      if (strcmp(argv[i], "-display") == 0) {
+         dpyName = argv[i+1];
+         i++;
+      }
+      else if (strcmp(argv[i], "-info") == 0) {
+         printInfo = GL_TRUE;
+      }
+      else {
+         usage();
+         return -1;
+      }
+   }
+
+   x_dpy = XOpenDisplay(dpyName);
+   if (!x_dpy) {
+      printf("Error: couldn't open display %s\n",
+	     dpyName ? dpyName : getenv("DISPLAY"));
+      return -1;
+   }
+
+   egl_dpy = eglGetDisplay(x_dpy);
+   if (!egl_dpy) {
+      printf("Error: eglGetDisplay() failed\n");
+      return -1;
+   }
+
+   if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+      printf("Error: eglInitialize() failed\n");
+      return -1;
+   }
+
+   s = eglQueryString(egl_dpy, EGL_VERSION);
+   printf("EGL_VERSION = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_VENDOR);
+   printf("EGL_VENDOR = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+   printf("EGL_EXTENSIONS = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+   printf("EGL_CLIENT_APIS = %s\n", s);
+
+   make_x_window(x_dpy, egl_dpy,
+                 "xegl_two_win #1", 0, 0, WinWidth[0], WinHeight[0],
+                 &win1, &egl_ctx, &egl_surf1);
+
+   make_x_window(x_dpy, egl_dpy,
+                 "xegl_two_win #2", WinWidth[0] + 50, 0,
+                 WinWidth[1], WinHeight[1],
+                 &win2, NULL, &egl_surf2);
+
+   XMapWindow(x_dpy, win1);
+
+   XMapWindow(x_dpy, win2);
+
+   if (!eglMakeCurrent(egl_dpy, egl_surf1, egl_surf1, egl_ctx)) {
+      printf("Error: eglMakeCurrent() failed\n");
+      return -1;
+   }
+
+   if (printInfo) {
+      for (i = 0; i < sizeof(info_items)/sizeof(info_items[0]); i++) {
+         switch (info_items[i].type) {
+            case GetString:
+               printf("%s = %s\n", info_items[i].name, (char *)glGetString(info_items[i].value));
+               break;
+            case GetInteger: {
+               GLint rv = -1;
+               glGetIntegerv(info_items[i].value, &rv);
+               printf("%s = %d\n", info_items[i].name, rv);
+               break;
+            }
+         }
+      }
+   };
+
+   init();
+
+   event_loop(x_dpy, win1, win2, egl_dpy, egl_surf1, egl_surf2, egl_ctx);
+
+   eglDestroyContext(egl_dpy, egl_ctx);
+   eglDestroySurface(egl_dpy, egl_surf1);
+   eglDestroySurface(egl_dpy, egl_surf2);
+   eglTerminate(egl_dpy);
+
+   XDestroyWindow(x_dpy, win1);
+   XDestroyWindow(x_dpy, win2);
+   XCloseDisplay(x_dpy);
+
+   return 0;
+}