glut_egl: Move from tests/util/glut_egl to src/glut_egl

The util directory is getting crowded, and glut_egl is not dependent on
Piglit in any way. It should belong in its own directory.

Signed-off-by: Chad Versace <chad.versace@intel.com>

5 files changed, 879 insertions, 0 deletions

diff --git a/src/glut_egl/CMakeLists.txt b/src/glut_egl/CMakeLists.txt
new file mode 100644
index 000000000..72d95679c
--- /dev/null
+++ b/src/glut_egl/CMakeLists.txt
@@ -0,0 +1,16 @@
+add_definitions ( -DSOURCE_DIR="${piglit_SOURCE_DIR}/" )
+
+include_directories(
+	${OPENGL_INCLUDE_PATH}
+)
+
+link_libraries (
+	${OPENGL_egl_LIBRARY}
+)
+
+IF(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+	add_library (piglitglutegl_x11
+		    glut_egl.c
+		    glut_egl_x11.c
+	)
+ENDIF(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
diff --git a/src/glut_egl/glut_egl.c b/src/glut_egl/glut_egl.c
new file mode 100644
index 000000000..b99a53913
--- /dev/null
+++ b/src/glut_egl/glut_egl.c
@@ -0,0 +1,406 @@
+/*
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ *    Chia-I Wu <olv@lunarg.com>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <sys/time.h>
+
+#include "EGL/egl.h"
+#include "EGL/eglext.h"
+
+#include "glut_eglint.h"
+
+static struct glut_egl_state _glut_egl_state = {
+   .api_mask = GLUT_EGL_OPENGL_ES1_BIT,
+   .display_mode = GLUT_RGB,
+   .window_width = 300,
+   .window_height = 300,
+   .verbose = 0,
+   .num_windows = 0,
+};
+
+struct glut_egl_state *_glut_egl = &_glut_egl_state;
+
+void
+_glut_eglFatal(char *format, ...)
+{
+  va_list args;
+
+  va_start(args, format);
+
+  fprintf(stderr, "GLUT_EGL: ");
+  vfprintf(stderr, format, args);
+  va_end(args);
+  putc('\n', stderr);
+
+  exit(1);
+}
+
+/* return current time (in milliseconds) */
+int
+_glut_eglNow(void)
+{
+   struct timeval tv;
+#ifdef __VMS
+   (void) gettimeofday(&tv, NULL );
+#else
+   struct timezone tz;
+   (void) gettimeofday(&tv, &tz);
+#endif
+   return tv.tv_sec * 1000 + tv.tv_usec / 1000;
+}
+
+static void
+_glut_eglDestroyWindow(struct glut_egl_window *win)
+{
+   if (_glut_egl->surface_type != EGL_PBUFFER_BIT &&
+       _glut_egl->surface_type != EGL_SCREEN_BIT_MESA)
+      eglDestroySurface(_glut_egl->dpy, win->surface);
+
+   _glut_eglNativeFiniWindow(win);
+
+   eglDestroyContext(_glut_egl->dpy, win->context);
+}
+
+static EGLConfig
+_glut_eglChooseConfig(void)
+{
+   EGLConfig config;
+   EGLint config_attribs[32];
+   EGLint renderable_type, num_configs, i;
+
+   i = 0;
+   config_attribs[i++] = EGL_RED_SIZE;
+   config_attribs[i++] = 1;
+   config_attribs[i++] = EGL_GREEN_SIZE;
+   config_attribs[i++] = 1;
+   config_attribs[i++] = EGL_BLUE_SIZE;
+   config_attribs[i++] = 1;
+
+   config_attribs[i++] = EGL_ALPHA_SIZE;
+   if (_glut_egl->display_mode & GLUT_ALPHA)
+      config_attribs[i++] = 1;
+   else
+      config_attribs[i++] = 0;
+
+   config_attribs[i++] = EGL_DEPTH_SIZE;
+   if (_glut_egl->display_mode & GLUT_DEPTH)
+      config_attribs[i++] = 1;
+   else
+      config_attribs[i++] = 0;
+
+   config_attribs[i++] = EGL_STENCIL_SIZE;
+   if (_glut_egl->display_mode & GLUT_STENCIL)
+      config_attribs[i++] = 1;
+   else
+      config_attribs[i++] = 0;
+
+   config_attribs[i++] = EGL_SURFACE_TYPE;
+   config_attribs[i++] = _glut_egl->surface_type;
+
+   config_attribs[i++] = EGL_RENDERABLE_TYPE;
+   renderable_type = 0x0;
+   if (_glut_egl->api_mask & GLUT_EGL_OPENGL_BIT)
+      renderable_type |= EGL_OPENGL_BIT;
+   if (_glut_egl->api_mask & GLUT_EGL_OPENGL_ES1_BIT)
+      renderable_type |= EGL_OPENGL_ES_BIT;
+   if (_glut_egl->api_mask & GLUT_EGL_OPENGL_ES2_BIT)
+      renderable_type |= EGL_OPENGL_ES2_BIT;
+   if (_glut_egl->api_mask & GLUT_EGL_OPENVG_BIT)
+      renderable_type |= EGL_OPENVG_BIT;
+   config_attribs[i++] = renderable_type;
+
+   config_attribs[i] = EGL_NONE;
+
+   if (!eglChooseConfig(_glut_egl->dpy,
+            config_attribs, &config, 1, &num_configs) || !num_configs)
+      _glut_eglFatal("failed to choose a config");
+
+   return config;
+}
+
+static struct glut_egl_window *
+_glut_eglCreateWindow(const char *title, int x, int y, int w, int h)
+{
+   struct glut_egl_window *win;
+   EGLint context_attribs[4];
+   EGLint api, i;
+
+   win = calloc(1, sizeof(*win));
+   if (!win)
+      _glut_eglFatal("failed to allocate window");
+
+   win->config = _glut_eglChooseConfig();
+
+   i = 0;
+   context_attribs[i] = EGL_NONE;
+
+   /* multiple APIs? */
+
+   api = EGL_OPENGL_ES_API;
+   if (_glut_egl->api_mask & GLUT_EGL_OPENGL_BIT) {
+      api = EGL_OPENGL_API;
+   }
+   else if (_glut_egl->api_mask & GLUT_EGL_OPENVG_BIT) {
+      api = EGL_OPENVG_API;
+   }
+   else if (_glut_egl->api_mask & GLUT_EGL_OPENGL_ES2_BIT) {
+      context_attribs[i++] = EGL_CONTEXT_CLIENT_VERSION;
+      context_attribs[i++] = 2;
+   }
+
+   context_attribs[i] = EGL_NONE;
+
+   eglBindAPI(api);
+   win->context = eglCreateContext(_glut_egl->dpy,
+         win->config, EGL_NO_CONTEXT, context_attribs);
+   if (!win->context)
+      _glut_eglFatal("failed to create context");
+
+   _glut_eglNativeInitWindow(win, title, x, y, w, h);
+   switch (_glut_egl->surface_type) {
+   case EGL_WINDOW_BIT:
+      win->surface = eglCreateWindowSurface(_glut_egl->dpy,
+            win->config, win->native.u.window, NULL);
+      break;
+   case EGL_PIXMAP_BIT:
+      win->surface = eglCreatePixmapSurface(_glut_egl->dpy,
+            win->config, win->native.u.pixmap, NULL);
+      break;
+   case EGL_PBUFFER_BIT:
+   case EGL_SCREEN_BIT_MESA:
+      win->surface = win->native.u.surface;
+      break;
+   default:
+      break;
+   }
+   if (win->surface == EGL_NO_SURFACE)
+      _glut_eglFatal("failed to create surface");
+
+   return win;
+}
+
+void
+glut_eglInitAPIMask(int mask)
+{
+   _glut_egl->api_mask = mask;
+}
+
+void
+glutInitDisplayMode(unsigned int mode)
+{
+   _glut_egl->display_mode = mode;
+}
+
+void
+glutInitWindowPosition(int x, int y)
+{
+}
+
+void
+glutInitWindowSize(int width, int height)
+{
+   _glut_egl->window_width = width;
+   _glut_egl->window_height = height;
+}
+
+void
+glutInit(int *argcp, char **argv)
+{
+   int i;
+
+   for (i = 1; i < *argcp; i++) {
+      if (strcmp(argv[i], "-display") == 0)
+         _glut_egl->display_name = argv[++i];
+      else if (strcmp(argv[i], "-info") == 0) {
+         _glut_egl->verbose = 1;
+      }
+   }
+
+   _glut_eglNativeInitDisplay();
+   _glut_egl->dpy = eglGetDisplay(_glut_egl->native_dpy);
+
+   if (!eglInitialize(_glut_egl->dpy, &_glut_egl->major, &_glut_egl->minor))
+      _glut_eglFatal("failed to initialize EGL display");
+
+   _glut_egl->init_time = _glut_eglNow();
+
+   printf("EGL_VERSION = %s\n", eglQueryString(_glut_egl->dpy, EGL_VERSION));
+   if (_glut_egl->verbose) {
+      printf("EGL_VENDOR = %s\n", eglQueryString(_glut_egl->dpy, EGL_VENDOR));
+      printf("EGL_EXTENSIONS = %s\n",
+            eglQueryString(_glut_egl->dpy, EGL_EXTENSIONS));
+      printf("EGL_CLIENT_APIS = %s\n",
+            eglQueryString(_glut_egl->dpy, EGL_CLIENT_APIS));
+   }
+}
+
+int
+glutGet(int state)
+{
+   int val;
+
+   switch (state) {
+   case GLUT_EGL_ELAPSED_TIME:
+      val = _glut_eglNow() - _glut_egl->init_time;
+      break;
+   default:
+      val = -1;
+      break;
+   }
+
+   return val;
+}
+
+void
+glutIdleFunc(GLUT_EGLidleCB func)
+{
+   _glut_egl->idle_cb = func;
+}
+
+void
+glutPostRedisplay(void)
+{
+   _glut_egl->redisplay = 1;
+}
+
+void
+glutMainLoop(void)
+{
+   struct glut_egl_window *win = _glut_egl->current;
+
+   if (!win)
+      _glut_eglFatal("no window is created\n");
+
+   if (win->reshape_cb)
+      win->reshape_cb(win->native.width, win->native.height);
+
+   _glut_eglNativeEventLoop();
+}
+
+static void
+_glut_eglFini(void)
+{
+   eglTerminate(_glut_egl->dpy);
+   _glut_eglNativeFiniDisplay();
+}
+
+void
+glutDestroyWindow(int win)
+{
+   struct glut_egl_window *window = _glut_egl->current;
+
+   if (window->index != win)
+      return;
+
+   /* XXX it causes some bug in st/egl KMS backend */
+   if ( _glut_egl->surface_type != EGL_SCREEN_BIT_MESA)
+      eglMakeCurrent(_glut_egl->dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+
+   _glut_eglDestroyWindow(_glut_egl->current);
+}
+
+static void
+_glut_eglDefaultKeyboard(unsigned char key, int x, int y)
+{
+   if (key == 27) {
+      if (_glut_egl->current)
+         glutDestroyWindow(_glut_egl->current->index);
+      _glut_eglFini();
+
+      exit(0);
+   }
+}
+
+int
+glutCreateWindow(const char *title)
+{
+   struct glut_egl_window *win;
+
+   win = _glut_eglCreateWindow(title, 0, 0,
+         _glut_egl->window_width, _glut_egl->window_height);
+
+   win->index = _glut_egl->num_windows++;
+   win->reshape_cb = NULL;
+   win->display_cb = NULL;
+   win->keyboard_cb = _glut_eglDefaultKeyboard;
+   win->special_cb = NULL;
+
+   if (!eglMakeCurrent(_glut_egl->dpy, win->surface, win->surface, win->context))
+      _glut_eglFatal("failed to make window current");
+   _glut_egl->current = win;
+
+   return win->index;
+}
+
+int
+glut_eglGetWindowWidth(void)
+{
+   struct glut_egl_window *win = _glut_egl->current;
+   return win->native.width;
+}
+
+int
+glut_eglGetWindowHeight(void)
+{
+   struct glut_egl_window *win = _glut_egl->current;
+   return win->native.height;
+}
+
+void
+glutDisplayFunc(GLUT_EGLdisplayCB func)
+{
+   struct glut_egl_window *win = _glut_egl->current;
+   win->display_cb = func;
+
+}
+
+void
+glutReshapeFunc(GLUT_EGLreshapeCB func)
+{
+   struct glut_egl_window *win = _glut_egl->current;
+   win->reshape_cb = func;
+}
+
+void
+glutKeyboardFunc(GLUT_EGLkeyboardCB func)
+{
+   struct glut_egl_window *win = _glut_egl->current;
+   win->keyboard_cb = func;
+}
+
+void
+glutSpecialFunc(GLUT_EGLspecialCB func)
+{
+   struct glut_egl_window *win = _glut_egl->current;
+   win->special_cb = func;
+}
+
+void
+glutSwapBuffers(void)
+{
+}
diff --git a/src/glut_egl/glut_egl.h b/src/glut_egl/glut_egl.h
new file mode 100644
index 000000000..dddf0f2c2
--- /dev/null
+++ b/src/glut_egl/glut_egl.h
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ *    Chia-I Wu <olv@lunarg.com>
+ */
+
+#ifndef GLUT_EGL_H
+#define GLUT_EGL_H
+
+enum {
+   GLUT_RGB = 0,
+   GLUT_RGBA = 0,
+   GLUT_INDEX = 1,
+   GLUT_SINGLE = 0,
+   GLUT_DOUBLE = 2,
+   GLUT_ACCUM = 4,
+   GLUT_ALPHA = 8,
+   GLUT_DEPTH = 16,
+   GLUT_STENCIL = 32,
+};
+
+/* used by glut_eglInitAPIMask */
+enum {
+   GLUT_EGL_OPENGL_BIT     = 0x1,
+   GLUT_EGL_OPENGL_ES1_BIT = 0x2,
+   GLUT_EGL_OPENGL_ES2_BIT = 0x4,
+   GLUT_EGL_OPENVG_BIT     = 0x8
+};
+
+/* used by GLUT_EGLspecialCB */
+enum {
+   /* function keys */
+   GLUT_KEY_F1  = 1,
+   GLUT_KEY_F2  = 2,
+   GLUT_KEY_F3  = 3,
+   GLUT_KEY_F4  = 4,
+   GLUT_KEY_F5  = 5,
+   GLUT_KEY_F6  = 6,
+   GLUT_KEY_F7  = 7,
+   GLUT_KEY_F8  = 8,
+   GLUT_KEY_F9  = 9,
+   GLUT_KEY_F10 = 10,
+   GLUT_KEY_F11 = 11,
+   GLUT_KEY_F12 = 12,
+
+   /* directional keys */
+   GLUT_KEY_LEFT = 100,
+   GLUT_KEY_UP = 101,
+   GLUT_KEY_RIGHT = 102,
+   GLUT_KEY_DOWN = 103,
+};
+
+/* used by glutGet */
+enum {
+   GLUT_EGL_ELAPSED_TIME
+};
+
+typedef void (*GLUT_EGLidleCB)(void);
+typedef void (*GLUT_EGLreshapeCB)(int, int);
+typedef void (*GLUT_EGLdisplayCB)(void);
+typedef void (*GLUT_EGLkeyboardCB)(unsigned char, int, int);
+typedef void (*GLUT_EGLspecialCB)(int, int, int);
+
+void glut_eglInitAPIMask(int mask);
+void glutInitDisplayMode(unsigned int mode);
+void glutInitWindowPosition(int x, int y);
+void glutInitWindowSize(int width, int height);
+void glutInit(int *argcp, char **argv);
+
+int glutGet(int state);
+
+void glutIdleFunc(GLUT_EGLidleCB func);
+void glutPostRedisplay(void);
+
+void glutMainLoop(void);
+
+int glutCreateWindow(const char *title);
+void glutDestroyWindow(int win);
+
+int glut_eglGetWindowWidth(void);
+int glut_eglGetWindowHeight(void);
+
+void glutDisplayFunc(GLUT_EGLdisplayCB func);
+void glutReshapeFunc(GLUT_EGLreshapeCB func);
+void glutKeyboardFunc(GLUT_EGLkeyboardCB func);
+void glutSpecialFunc(GLUT_EGLspecialCB func);
+void glutSwapBuffers(void);
+
+#endif /* GLUT_EGL_H */
diff --git a/src/glut_egl/glut_egl_x11.c b/src/glut_egl/glut_egl_x11.c
new file mode 100644
index 000000000..eae77c8be
--- /dev/null
+++ b/src/glut_egl/glut_egl_x11.c
@@ -0,0 +1,245 @@
+/*
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ *    Chia-I Wu <olv@lunarg.com>
+ */
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+
+#include "glut_eglint.h"
+
+void
+_glut_eglNativeInitDisplay(void)
+{
+   _glut_egl->native_dpy = XOpenDisplay(_glut_egl->display_name);
+   if (!_glut_egl->native_dpy)
+      _glut_eglFatal("failed to initialize native display");
+
+   _glut_egl->surface_type = EGL_WINDOW_BIT;
+}
+
+void
+_glut_eglNativeFiniDisplay(void)
+{
+   XCloseDisplay(_glut_egl->native_dpy);
+}
+
+void
+_glut_eglNativeInitWindow(struct glut_egl_window *win, const char *title,
+                       int x, int y, int w, int h)
+{
+   XVisualInfo *visInfo, visTemplate;
+   int num_visuals;
+   Window root, xwin;
+   XSetWindowAttributes attr;
+   unsigned long mask;
+   EGLint vid;
+
+   if (!eglGetConfigAttrib(_glut_egl->dpy,
+            win->config, EGL_NATIVE_VISUAL_ID, &vid))
+      _glut_eglFatal("failed to get visual id");
+
+   /* The X window visual must match the EGL config */
+   visTemplate.visualid = vid;
+   visInfo = XGetVisualInfo(_glut_egl->native_dpy,
+         VisualIDMask, &visTemplate, &num_visuals);
+   if (!visInfo)
+      _glut_eglFatal("failed to get an visual of id 0x%x", vid);
+
+   root = RootWindow(_glut_egl->native_dpy, DefaultScreen(_glut_egl->native_dpy));
+
+   /* window attributes */
+   attr.background_pixel = 0;
+   attr.border_pixel = 0;
+   attr.colormap = XCreateColormap(_glut_egl->native_dpy,
+         root, visInfo->visual, AllocNone);
+   attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+   mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+   xwin = XCreateWindow(_glut_egl->native_dpy, root, x, y, w, h,
+         0, visInfo->depth, InputOutput, visInfo->visual, mask, &attr);
+   if (!xwin)
+      _glut_eglFatal("failed to create a window");
+
+   XFree(visInfo);
+
+   /* set hints and properties */
+   {
+      XSizeHints sizehints;
+      sizehints.x = x;
+      sizehints.y = y;
+      sizehints.width  = w;
+      sizehints.height = h;
+      sizehints.flags = USSize | USPosition;
+      XSetNormalHints(_glut_egl->native_dpy, xwin, &sizehints);
+      XSetStandardProperties(_glut_egl->native_dpy, xwin,
+            title, title, None, (char **) NULL, 0, &sizehints);
+   }
+
+   XMapWindow(_glut_egl->native_dpy, xwin);
+
+   win->native.u.window = xwin;
+   win->native.width = w;
+   win->native.height = h;
+}
+
+void
+_glut_eglNativeFiniWindow(struct glut_egl_window *win)
+{
+   XDestroyWindow(_glut_egl->native_dpy, win->native.u.window);
+}
+
+static int
+lookup_keysym(KeySym sym)
+{
+   int special;
+
+   switch (sym) {
+   case XK_F1:
+      special = GLUT_KEY_F1;
+      break;
+   case XK_F2:
+      special = GLUT_KEY_F2;
+      break;
+   case XK_F3:
+      special = GLUT_KEY_F3;
+      break;
+   case XK_F4:
+      special = GLUT_KEY_F4;
+      break;
+   case XK_F5:
+      special = GLUT_KEY_F5;
+      break;
+   case XK_F6:
+      special = GLUT_KEY_F6;
+      break;
+   case XK_F7:
+      special = GLUT_KEY_F7;
+      break;
+   case XK_F8:
+      special = GLUT_KEY_F8;
+      break;
+   case XK_F9:
+      special = GLUT_KEY_F9;
+      break;
+   case XK_F10:
+      special = GLUT_KEY_F10;
+      break;
+   case XK_F11:
+      special = GLUT_KEY_F11;
+      break;
+   case XK_F12:
+      special = GLUT_KEY_F12;
+      break;
+   case XK_KP_Left:
+   case XK_Left:
+      special = GLUT_KEY_LEFT;
+      break;
+   case XK_KP_Up:
+   case XK_Up:
+      special = GLUT_KEY_UP;
+      break;
+   case XK_KP_Right:
+   case XK_Right:
+      special = GLUT_KEY_RIGHT;
+      break;
+   case XK_KP_Down:
+   case XK_Down:
+      special = GLUT_KEY_DOWN;
+      break;
+   default:
+      special = -1;
+      break;
+   }
+
+   return special;
+}
+
+static void
+next_event(struct glut_egl_window *win)
+{
+   int redraw = 0;
+   XEvent event;
+
+   if (!XPending(_glut_egl->native_dpy)) {
+      if (_glut_egl->idle_cb)
+         _glut_egl->idle_cb();
+      return;
+   }
+
+   XNextEvent(_glut_egl->native_dpy, &event);
+
+   switch (event.type) {
+   case Expose:
+      redraw = 1;
+      break;
+   case ConfigureNotify:
+      win->native.width = event.xconfigure.width;
+      win->native.height = event.xconfigure.height;
+      if (win->reshape_cb)
+         win->reshape_cb(win->native.width, win->native.height);
+      break;
+   case KeyPress:
+      {
+         char buffer[1];
+         KeySym sym;
+         int r;
+
+         r = XLookupString(&event.xkey,
+               buffer, sizeof(buffer), &sym, NULL);
+         if (r && win->keyboard_cb) {
+            win->keyboard_cb(buffer[0], event.xkey.x, event.xkey.y);
+         }
+         else if (!r && win->special_cb) {
+            r = lookup_keysym(sym);
+            if (r >= 0)
+               win->special_cb(r, event.xkey.x, event.xkey.y);
+         }
+      }
+      redraw = 1;
+      break;
+   default:
+      ; /*no-op*/
+   }
+
+   _glut_egl->redisplay = redraw;
+}
+
+void
+_glut_eglNativeEventLoop(void)
+{
+   while (1) {
+      struct glut_egl_window *win = _glut_egl->current;
+
+      next_event(win);
+
+      if (_glut_egl->redisplay) {
+         _glut_egl->redisplay = 0;
+
+         if (win->display_cb)
+            win->display_cb();
+         eglSwapBuffers(_glut_egl->dpy, win->surface);
+      }
+   }
+}
diff --git a/src/glut_egl/glut_eglint.h b/src/glut_egl/glut_eglint.h
new file mode 100644
index 000000000..d34e77d10
--- /dev/null
+++ b/src/glut_egl/glut_eglint.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ *    Chia-I Wu <olv@lunarg.com>
+ */
+
+#ifndef _GLUT_EGLINT_H_
+#define _GLUT_EGLINT_H_
+
+#include "EGL/egl.h"
+#include "glut_egl.h"
+
+struct glut_egl_window {
+   EGLConfig config;
+   EGLContext context;
+
+   /* initialized by native display */
+   struct {
+      union {
+         EGLNativeWindowType window;
+         EGLNativePixmapType pixmap;
+         EGLSurface surface; /* pbuffer or screen surface */
+      } u;
+      int width, height;
+   } native;
+
+   EGLSurface surface;
+
+   int index;
+
+   GLUT_EGLreshapeCB reshape_cb;
+   GLUT_EGLdisplayCB display_cb;
+   GLUT_EGLkeyboardCB keyboard_cb;
+   GLUT_EGLspecialCB special_cb;
+};
+
+struct glut_egl_state {
+   int api_mask;
+   int display_mode;
+   int window_width, window_height;
+   const char *display_name;
+   int verbose;
+   int init_time;
+
+   GLUT_EGLidleCB idle_cb;
+
+   int num_windows;
+
+   /* initialized by native display */
+   EGLNativeDisplayType native_dpy;
+   EGLint surface_type;
+
+   EGLDisplay dpy;
+   EGLint major, minor;
+
+   struct glut_egl_window *current;
+
+   int redisplay;
+};
+
+extern struct glut_egl_state *_glut_egl;
+
+void
+_glut_eglFatal(char *format, ...);
+
+int
+_glut_eglNow(void);
+
+void
+_glut_eglNativeInitDisplay(void);
+
+void
+_glut_eglNativeFiniDisplay(void);
+
+void
+_glut_eglNativeInitWindow(struct glut_egl_window *win, const char *title,
+                       int x, int y, int w, int h);
+
+void
+_glut_eglNativeFiniWindow(struct glut_egl_window *win);
+
+void
+_glut_eglNativeEventLoop(void);
+
+#endif /* _GLUT_EGLINT_H_ */