Merge branch 'master' into asm-shader-rework-1

Conflicts:
	src/mesa/shader/arbprogparse.c

48 files changed, 5374 insertions, 383 deletions

diff --git a/progs/demos/cubemap.c b/progs/demos/cubemap.c
index 1f9f290575..0df5ff09c3 100644
--- a/progs/demos/cubemap.c
+++ b/progs/demos/cubemap.c
@@ -43,6 +43,9 @@
 #include "GL/glut.h"
 #include "readtex.h"
 
+#ifndef GL_TEXTURE_CUBE_MAP_SEAMLESS
+#define GL_TEXTURE_CUBE_MAP_SEAMLESS 0x884F
+#endif
 
 static GLfloat Xrot = 0, Yrot = 0;
 static GLfloat EyeDist = 10;
@@ -53,6 +56,8 @@ static GLint FrameParity = 0;
 static GLenum FilterIndex = 0;
 static GLint ClampIndex = 0;
 static GLboolean supportFBO = GL_FALSE;
+static GLboolean supportSeamless = GL_FALSE;
+static GLboolean seamless = GL_FALSE;
 
 
 static struct {
@@ -91,7 +96,9 @@ static struct {
 
 
 
-#define eps1 0.99
+/* The effects of GL_ARB_seamless_cube_map don't show up unless eps1 is 1.0.
+ */
+#define eps1 1.0 /*0.99*/
 #define br   20.0  /* box radius */
 
 static const GLfloat tex_coords[] = {
@@ -231,6 +238,13 @@ static void draw( void )
    glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MAG_FILTER,
                    FilterModes[FilterIndex].mag_mode);
 
+   if (supportSeamless) {
+      if (seamless) {
+	 glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
+      } else {
+	 glDisable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
+      }
+   }
    wrap = ClampModes[ClampIndex].mode;
    glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_S, wrap);
    glTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_T, wrap);
@@ -321,6 +335,11 @@ static void key(unsigned char k, int x, int y)
          mode = !mode;
          set_mode(mode);
          break;
+      case 's':
+	 seamless = ! seamless;
+	 printf("Seamless cube map filtering is %sabled\n",
+		(seamless) ? "en" : "dis" );
+	 break;
       case 'v':
          use_vertex_arrays = ! use_vertex_arrays;
          printf( "Vertex arrays are %sabled\n",
@@ -502,23 +521,26 @@ static void load_envmaps(void)
 static void init( GLboolean useImageFiles )
 {
    /* check for extensions */
-   {
-      char *exten = (char *) glGetString(GL_EXTENSIONS);
-      if (!strstr(exten, "GL_ARB_texture_cube_map")) {
-         printf("Sorry, this demo requires GL_ARB_texture_cube_map\n");
-         exit(0);
-      }
+   if (!GLEW_ARB_texture_cube_map) {
+      printf("Sorry, this demo requires GL_ARB_texture_cube_map\n");
+      exit(0);
+   }
 
-      /* Needed for glGenerateMipmapEXT / auto mipmapping
-       */
-      if (strstr(exten, "GL_EXT_framebuffer_object")) {
-         supportFBO = GL_TRUE;
-      }
-      else if (!strstr(exten, "GL_SGIS_generate_mipmap")) {
-         printf("Sorry, this demo requires GL_EXT_framebuffer_object or GL_SGIS_generate_mipmap\n");
-         exit(0);
-      }
+   /* Needed for glGenerateMipmapEXT / auto mipmapping
+    */
+   supportFBO = GLEW_EXT_framebuffer_object;
+
+   if (!supportFBO && !GLEW_SGIS_generate_mipmap) {
+      printf("Sorry, this demo requires GL_EXT_framebuffer_object or "
+	     "GL_SGIS_generate_mipmap\n");
+      exit(0);
    }
+
+   /* GLEW doesn't know about this extension yet, so use the old GLUT function
+    * to check for availability.
+    */
+   supportSeamless = glutExtensionSupported("GL_ARB_seamless_cube_map");
+
    printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
 
    if (useImageFiles) {
diff --git a/progs/egl/Makefile b/progs/egl/Makefile
index d3c32d46f7..fd72f540ca 100644
--- a/progs/egl/Makefile
+++ b/progs/egl/Makefile
@@ -17,6 +17,7 @@ PROGRAMS = \
 	eglgears \
 	eglscreen \
 	peglgears \
+	xeglbindtex \
 	xeglgears \
 	xeglthreads \
 	xegl_tri
@@ -84,6 +85,12 @@ peglgears.o: peglgears.c $(HEADERS)
 	$(CC) -c $(CFLAGS) -I$(TOP)/include peglgears.c
 
 
+xeglbindtex: xeglbindtex.o $(TOP)/$(LIB_DIR)/libEGL.so
+	$(CC) $(CFLAGS) xeglbindtex.o -L$(TOP)/$(LIB_DIR) -lEGL -lGL $(LIBDRM_LIB) $(APP_LIB_DEPS) -o $@
+
+xeglbindtex.o: xeglbindtex.c $(HEADERS)
+	$(CC) -c $(CFLAGS) -I$(TOP)/include xeglbindtex.c
+
 xeglgears: xeglgears.o $(TOP)/$(LIB_DIR)/libEGL.so
 	$(CC) $(CFLAGS) xeglgears.o -L$(TOP)/$(LIB_DIR) -lEGL -lGL $(LIBDRM_LIB) $(APP_LIB_DEPS) -o $@
 
diff --git a/progs/egl/xeglbindtex.c b/progs/egl/xeglbindtex.c
new file mode 100644
index 0000000000..fdd9fe2b87
--- /dev/null
+++ b/progs/egl/xeglbindtex.c
@@ -0,0 +1,474 @@
+/*
+ * Simple demo for eglBindTexImage.  Based on xegl_tri.c by
+ *
+ * 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.
+ */
+
+/*
+ * The spec says that eglBindTexImage supports only OpenGL ES context, but this
+ * demo uses OpenGL context.  Keep in mind that this is non-standard.
+ */
+
+#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 <GL/gl.h>
+#include <EGL/egl.h>
+
+static EGLDisplay dpy;
+static EGLContext ctx_win, ctx_pbuf;
+static EGLSurface surf_win, surf_pbuf;
+static GLuint tex_pbuf;
+
+static GLfloat view_rotx = 0.0, view_roty = 0.0, view_rotz = 0.0;
+static GLboolean blend = GL_TRUE;
+static GLuint color_flow;
+
+static void
+make_pbuffer(int width, int height)
+{
+   static const EGLint config_attribs[] = {
+      EGL_RED_SIZE, 8,
+      EGL_GREEN_SIZE, 8,
+      EGL_BLUE_SIZE, 8,
+      EGL_BIND_TO_TEXTURE_RGB, EGL_TRUE,
+      EGL_NONE
+   };
+   EGLint pbuf_attribs[] = {
+      EGL_WIDTH, width,
+      EGL_HEIGHT, height,
+      EGL_TEXTURE_FORMAT, EGL_TEXTURE_RGB,
+      EGL_TEXTURE_TARGET, EGL_TEXTURE_2D,
+      EGL_NONE
+   };
+   EGLConfig config;
+   EGLint num_configs;
+
+   if (!eglChooseConfig(dpy, config_attribs, &config, 1, &num_configs)) {
+      printf("Error: couldn't get an EGL visual config for pbuffer\n");
+      exit(1);
+   }
+
+   eglBindAPI(EGL_OPENGL_API);
+   ctx_pbuf = eglCreateContext(dpy, config, EGL_NO_CONTEXT, NULL );
+   surf_pbuf = eglCreatePbufferSurface(dpy, config, pbuf_attribs);
+   if (surf_pbuf == EGL_NO_SURFACE) {
+      printf("failed to allocate pbuffer\n");
+      exit(1);
+   }
+
+   glGenTextures(1, &tex_pbuf);
+}
+
+static void
+use_pbuffer(void)
+{
+   static int initialized;
+
+   eglMakeCurrent(dpy, surf_pbuf, surf_pbuf, ctx_pbuf);
+   if (!initialized) {
+      EGLint width, height;
+      GLfloat ar;
+
+      initialized = 1;
+
+      eglQuerySurface(dpy, surf_pbuf, EGL_WIDTH, &width);
+      eglQuerySurface(dpy, surf_pbuf, EGL_WIDTH, &height);
+      ar = (GLfloat) width / (GLfloat) height;
+
+      glViewport(0, 0, (GLint) width, (GLint) height);
+
+      glMatrixMode(GL_PROJECTION);
+      glLoadIdentity();
+      glFrustum(-ar, ar, -1, 1, 1.0, 10.0);
+
+      glMatrixMode(GL_MODELVIEW);
+      glLoadIdentity();
+
+      /* y-inverted */
+      glScalef(1.0, -1.0, 1.0);
+
+      glTranslatef(0.0, 0.0, -5.0);
+
+      glClearColor(0.2, 0.2, 0.2, 0.0);
+   }
+}
+
+static void
+make_window(Display *x_dpy, const char *name,
+            int x, int y, int width, int height,
+            Window *winRet)
+{
+   static const EGLint attribs[] = {
+      EGL_RED_SIZE, 8,
+      EGL_GREEN_SIZE, 8,
+      EGL_BLUE_SIZE, 8,
+      EGL_ALPHA_SIZE, 8,
+      EGL_DEPTH_SIZE, 8,
+      EGL_NONE
+   };
+
+   int scrnum;
+   XSetWindowAttributes attr;
+   unsigned long mask;
+   Window root;
+   Window win;
+   XVisualInfo *visInfo, visTemplate;
+   int num_visuals;
+   EGLConfig config;
+   EGLint num_configs, vid;
+
+   scrnum = DefaultScreen( x_dpy );
+   root = RootWindow( x_dpy, scrnum );
+
+   if (!eglChooseConfig(dpy, attribs, &config, 1, &num_configs)) {
+      printf("Error: couldn't get an EGL visual config\n");
+      exit(1);
+   }
+
+   if (!eglGetConfigAttrib(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;
+   attr.override_redirect = 0;
+   mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask | CWOverrideRedirect;
+
+   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_API);
+   ctx_win = eglCreateContext(dpy, config, EGL_NO_CONTEXT, NULL );
+   if (!ctx_win) {
+      printf("Error: glXCreateContext failed\n");
+      exit(1);
+   }
+
+   surf_win = eglCreateWindowSurface(dpy, config, win, NULL);
+
+   XFree(visInfo);
+
+   *winRet = win;
+}
+
+static void
+use_window(void)
+{
+   static int initialized;
+
+   eglMakeCurrent(dpy, surf_win, surf_win, ctx_win);
+   if (!initialized) {
+      initialized = 1;
+      glEnable(GL_TEXTURE_2D);
+      glBindTexture(GL_TEXTURE_2D, tex_pbuf);
+      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+
+      glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+   }
+}
+
+static void
+draw_triangle(void)
+{
+   static const GLfloat verts[3][2] = {
+      { -3, -3 },
+      {  3, -3 },
+      {  0,  3 }
+   };
+   GLfloat colors[3][3] = {
+      { 1, 0, 0 },
+      { 0, 1, 0 },
+      { 0, 0, 1 }
+   };
+   GLint i;
+
+   /* flow the color */
+   for (i = 0; i < 3; i++) {
+      GLint first = (i + color_flow / 256) % 3;
+      GLint second = (first + 1) % 3;
+      GLint third = (second + 1) % 3;
+      GLfloat c = (color_flow % 256) / 256.0f;
+
+      c = c * c * c;
+      colors[i][first] = 1.0f - c;
+      colors[i][second] = c;
+      colors[i][third] = 0.0f;
+   }
+
+   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+   glVertexPointer(2, GL_FLOAT, 0, verts);
+   glColorPointer(3, 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);
+}
+
+static void
+draw_textured_cube(void)
+{
+   static const GLfloat verts[][2] = {
+      { -4, -4 },
+      {  4, -4 },
+      {  4,  4 },
+      { -4,  4 }
+   };
+   static const GLfloat colors[][4] = {
+      { 1, 1, 1, 0.5 },
+      { 1, 1, 1, 0.5 },
+      { 1, 1, 1, 0.5 },
+      { 1, 1, 1, 0.5 }
+   };
+   static const GLfloat texs[][2] = {
+      { 0, 0 },
+      { 1, 0 },
+      { 1, 1 },
+      { 0, 1 }
+   };
+   static const GLfloat xforms[6][4] = {
+      {   0, 0, 1, 0 },
+      {  90, 0, 1, 0 },
+      { 180, 0, 1, 0 },
+      { 270, 0, 1, 0 },
+      {  90, 1, 0, 0 },
+      { -90, 1, 0, 0 }
+   };
+   GLint i;
+
+   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+   if (blend) {
+      glDisable(GL_DEPTH_TEST);
+      glEnable(GL_BLEND);
+   } else {
+      glEnable(GL_DEPTH_TEST);
+      glDisable(GL_BLEND);
+   }
+
+   glVertexPointer(2, GL_FLOAT, 0, verts);
+   glColorPointer(4, GL_FLOAT, 0, colors);
+   glTexCoordPointer(2, GL_FLOAT, 0, texs);
+
+   glEnableClientState(GL_VERTEX_ARRAY);
+   glEnableClientState(GL_COLOR_ARRAY);
+   glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+   for (i = 0; i < 6; i++) {
+      glPushMatrix();
+      glRotatef(xforms[i][0], xforms[i][1], xforms[i][2], xforms[i][3]);
+      glTranslatef(0, 0, 4.1);
+      glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+      glPopMatrix();
+   }
+
+   glDisableClientState(GL_VERTEX_ARRAY);
+   glDisableClientState(GL_COLOR_ARRAY);
+   glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+}
+
+static void
+draw(void)
+{
+   use_pbuffer();
+   draw_triangle();
+
+   use_window();
+
+   eglBindTexImage(dpy, surf_pbuf, EGL_BACK_BUFFER);
+
+   glPushMatrix();
+   glRotatef(view_rotx, 1, 0, 0);
+   glRotatef(view_roty, 0, 1, 0);
+   glRotatef(view_rotz, 0, 0, 1);
+
+   draw_textured_cube();
+
+   glPopMatrix();
+
+   eglReleaseTexImage(dpy, surf_pbuf, EGL_BACK_BUFFER);
+}
+
+/* new window size or exposure */
+static void
+reshape(int width, int height)
+{
+   GLfloat ar = (GLfloat) width / (GLfloat) height;
+
+   use_window();
+
+   glViewport(0, 0, (GLint) width, (GLint) height);
+
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+   glFrustum(-ar, ar, -1, 1, 5.0, 60.0);
+
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+   glTranslatef(0.0, 0.0, -40.0);
+}
+
+static void
+event_loop(Display *x_dpy, Window win)
+{
+   while (1) {
+      int redraw = 1;
+
+      if (XPending(x_dpy) > 0) {
+         XEvent event;
+         XNextEvent(x_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 if (code == XK_b) {
+                  blend = !blend;
+               }
+               else {
+                  r = XLookupString(&event.xkey, buffer, sizeof(buffer),
+                        NULL, NULL);
+                  if (buffer[0] == 27) {
+                     /* escape */
+                     return;
+                  }
+               }
+            }
+            redraw = 1;
+            break;
+         default:
+            ; /*no-op*/
+         }
+      }
+
+      if (redraw) {
+         view_rotx += 1.0;
+         view_roty += 2.0;
+         view_rotz += 1.5;
+         color_flow += 20;
+         draw();
+         eglSwapBuffers(dpy, surf_win);
+      }
+   }
+}
+
+int
+main(int argc, char *argv[])
+{
+   const int winWidth = 300, winHeight = 300;
+   Display *x_dpy;
+   Window win;
+   char *dpyName = NULL;
+   EGLint egl_major, egl_minor;
+   const char *s;
+
+   x_dpy = XOpenDisplay(dpyName);
+   if (!x_dpy) {
+      printf("Error: couldn't open display %s\n",
+	     dpyName ? dpyName : getenv("DISPLAY"));
+      return -1;
+   }
+
+   dpy = eglGetDisplay(x_dpy);
+   if (!dpy) {
+      printf("Error: eglGetDisplay() failed\n");
+      return -1;
+   }
+
+   if (!eglInitialize(dpy, &egl_major, &egl_minor)) {
+      printf("Error: eglInitialize() failed\n");
+      return -1;
+   }
+
+   s = eglQueryString(dpy, EGL_VERSION);
+   printf("EGL_VERSION = %s\n", s);
+
+   make_window(x_dpy, "color flow", 0, 0, winWidth, winHeight, &win);
+   make_pbuffer(winWidth, winHeight);
+
+   XMapWindow(x_dpy, win);
+
+   reshape(winWidth, winHeight);
+   event_loop(x_dpy, win);
+
+   glDeleteTextures(1, &tex_pbuf);
+
+   eglMakeCurrent(dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+   eglTerminate(dpy);
+
+   XDestroyWindow(x_dpy, win);
+   XCloseDisplay(x_dpy);
+
+   return 0;
+}
diff --git a/progs/glsl/.gitignore b/progs/glsl/.gitignore
index 39d90c23ac..986775bac2 100644
--- a/progs/glsl/.gitignore
+++ b/progs/glsl/.gitignore
@@ -22,6 +22,7 @@ samplers_array
 shaderutil.c
 shaderutil.h
 shadow_sampler
+shtest
 skinning
 texaaline
 texdemo1
diff --git a/progs/glsl/Makefile b/progs/glsl/Makefile
index eedd866c95..0875bdd795 100644
--- a/progs/glsl/Makefile
+++ b/progs/glsl/Makefile
@@ -14,6 +14,11 @@ LIBS = -L$(TOP)/$(LIB_DIR) -l$(GLUT_LIB) -l$(GLEW_LIB) -l$(GLU_LIB) -l$(GL_LIB)
 
 INCLUDE_DIRS = -I$(TOP)/progs/util
 
+# using : to avoid APP_CC pointing to CC loop
+CC:=$(APP_CC)
+CFLAGS += -I$(INCDIR)
+LDLIBS=$(LIBS)
+
 DEMO_SOURCES = \
 	array.c \
 	bitmap.c \
@@ -33,6 +38,7 @@ DEMO_SOURCES = \
 	points.c \
 	samplers.c \
 	shadow_sampler.c \
+	shtest.c \
 	skinning.c \
 	texaaline.c \
 	texdemo1.c \
@@ -52,28 +58,16 @@ UTIL_SOURCES = \
 	readtex.c
 
 UTIL_OBJS = $(UTIL_SOURCES:.c=.o)
-
-
+PROG_OBJS = $(DEMO_SOURCES:.c=.o)
 PROGS = $(DEMO_SOURCES:%.c=%)
 
-
-
-##### RULES #####
-
-# make .o file from .c file:
-.c.o:
-	$(APP_CC) -c -I$(INCDIR) $(CFLAGS) $< -o $@
-
-
-# make executable from .o files
-.o:
-	$(APP_CC) $(INCLUDES) $(CFLAGS) $(LDFLAGS) $< $(UTIL_OBJS) $(LIBS) -o $@
-
-
 ##### TARGETS #####
 
 default: $(PROGS)
 
+$(PROG_OBJS): $(UTIL_HEADERS)
+
+$(PROGS): $(UTIL_OBJS)
 
 clean:
 	-rm -f $(PROGS)
@@ -83,7 +77,6 @@ clean:
 	-rm -f readtex.*
 
 
-
 ##### Extra dependencies
 
 extfuncs.h: $(TOP)/progs/util/extfuncs.h
@@ -101,138 +94,3 @@ shaderutil.c: $(TOP)/progs/util/shaderutil.c
 shaderutil.h: $(TOP)/progs/util/shaderutil.h
 	cp $< .
 
-
-
-array.o: $(UTIL_HEADERS)
-
-array: array.o  $(UTIL_OBJS)
-
-
-bitmap.o: $(UTIL_HEADERS)
-
-bitmap: bitmap.o $(UTIL_OBJS)
-
-
-brick.o: $(UTIL_HEADERS)
-
-brick: brick.o $(UTIL_OBJS)
-
-
-bump.o: $(UTIL_HEADERS)
-
-bump: bump.o $(UTIL_OBJS)
-
-
-convolutions.o: $(UTIL_HEADERS)
-
-convolutions: convolutions.o $(UTIL_OBJS)
-
-
-deriv.o: deriv.c $(UTIL_HEADERS)
-
-deriv: deriv.o $(UTIL_OBJS)
-
-
-identity.o: $(UTIL_HEADERS)
-
-identity: identity.o $(UTIL_OBJS)
-
-
-fragcoord.o: $(UTIL_HEADERS)
-
-fragcoord: fragcoord.o $(UTIL_OBJS)
-
-
-linktest.o: $(UTIL_HEADERS)
-
-linktest: linktest.o $(UTIL_OBJS)
-
-
-mandelbrot.o: $(UTIL_HEADERS)
-
-mandelbrot: mandelbrot.o $(UTIL_OBJS)
-
-
-multinoise.o: $(UTIL_HEADERS)
-
-multinoise: multinoise.o $(UTIL_OBJS)
-
-
-multitex.o: $(UTIL_HEADERS)
-
-multitex: multitex.o $(UTIL_OBJS)
-
-
-noise.o: $(UTIL_HEADERS)
-
-noise: noise.o $(UTIL_OBJS)
-
-
-noise2.o: $(UTIL_HEADERS)
-
-noise2: noise2.o $(UTIL_OBJS)
-
-
-points.o: $(UTIL_HEADERS)
-
-points: points.o $(UTIL_OBJS)
-
-
-pointcoord.o: $(UTIL_HEADERS)
-
-pointcoord: pointcoord.o $(UTIL_OBJS)
-
-
-samplers.o: $(UTIL_HEADERS)
-
-samplers: samplers.o $(UTIL_OBJS)
-
-
-samplers_array.o: $(UTIL_HEADERS)
-
-samplers_array: samplers_array.o $(UTIL_OBJS)
-
-
-shadow_sampler.o: $(UTIL_HEADERS)
-
-shadow_sampler: shadow_sampler.o $(UTIL_OBJS)
-
-
-skinning.o: $(UTIL_HEADERS)
-
-skinning: skinning.o $(UTIL_OBJS)
-
-
-texaaline.o: $(UTIL_HEADERS)
-
-texaaline: texaaline.o $(UTIL_OBJS)
-
-
-texdemo1.o: $(UTIL_HEADERS)
-
-texdemo1: texdemo1.o $(UTIL_OBJS)
-
-
-toyball.o: $(UTIL_HEADERS)
-
-toyball: toyball.o $(UTIL_OBJS)
-
-
-twoside.o: $(UTIL_HEADERS)
-
-twoside: twoside.o $(UTIL_OBJS)
-
-
-trirast.o: $(UTIL_HEADERS)
-
-trirast: trirast.o $(UTIL_OBJS)
-
-
-vert-or-frag-only.o: $(UTIL_HEADERS)
-
-vert-or-frag-only: vert-or-frag-only.o $(UTIL_OBJS)
-
-
-vert-tex.o: $(UTIL_HEADERS)
-
-vert-tex: vert-tex.o $(UTIL_OBJS)
diff --git a/progs/glsl/brick.c b/progs/glsl/brick.c
index 1d08b231e7..20417aa462 100644
--- a/progs/glsl/brick.c
+++ b/progs/glsl/brick.c
@@ -24,12 +24,12 @@ static GLuint program;
 
 static struct uniform_info Uniforms[] = {
    /* vert */
-   { "LightPosition",     3, GL_FLOAT, { 0.1, 0.1, 9.0, 0}, -1 },
+   { "LightPosition",     1, GL_FLOAT_VEC3, { 0.1, 0.1, 9.0, 0}, -1 },
    /* frag */
-   { "BrickColor",        3, GL_FLOAT, { 0.8, 0.2, 0.2, 0 }, -1 },
-   { "MortarColor",       3, GL_FLOAT, { 0.6, 0.6, 0.6, 0 }, -1 },
-   { "BrickSize",         2, GL_FLOAT, { 1.0, 0.3, 0, 0 }, -1 },
-   { "BrickPct",          2, GL_FLOAT, { 0.9, 0.8, 0, 0 }, -1 },
+   { "BrickColor",        1, GL_FLOAT_VEC3, { 0.8, 0.2, 0.2, 0 }, -1 },
+   { "MortarColor",       1, GL_FLOAT_VEC3, { 0.6, 0.6, 0.6, 0 }, -1 },
+   { "BrickSize",         1, GL_FLOAT_VEC2, { 1.0, 0.3, 0, 0 }, -1 },
+   { "BrickPct",          1, GL_FLOAT_VEC2, { 0.9, 0.8, 0, 0 }, -1 },
    END_OF_UNIFORMS
 };
 
@@ -148,7 +148,8 @@ Init(void)
 
    glUseProgram(program);
 
-   InitUniforms(program, Uniforms);
+   SetUniformValues(program, Uniforms);
+   PrintUniforms(Uniforms);
 
    assert(glGetError() == 0);
 
@@ -183,7 +184,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(400, 400);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
    win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/brick.shtest b/progs/glsl/brick.shtest
new file mode 100644
index 0000000000..8a2152692e
--- /dev/null
+++ b/progs/glsl/brick.shtest
@@ -0,0 +1,8 @@
+vs CH06-brick.vert
+fs CH06-brick.frag
+uniform LightPosition GL_FLOAT_VEC3 0.1 0.1 9.0
+uniform BrickColor GL_FLOAT_VEC3 0.8 0.2 0.2
+uniform MortarColor GL_FLOAT_VEC3 0.6 0.6 0.6
+uniform BrickSize  GL_FLOAT_VEC2 1.0 0.3
+uniform BrickPct GL_FLOAT_VEC2 0.9 0.8
+
diff --git a/progs/glsl/bump.c b/progs/glsl/bump.c
index ddb986abcb..87669aec73 100644
--- a/progs/glsl/bump.c
+++ b/progs/glsl/bump.c
@@ -24,11 +24,11 @@ static GLuint program;
 
 
 static struct uniform_info Uniforms[] = {
-   { "LightPosition",    3, GL_FLOAT, { 0.57737, 0.57735, 0.57735, 0.0 }, -1 },
-   { "SurfaceColor",     3, GL_FLOAT, { 0.8, 0.8, 0.2, 0 }, -1 },
-   { "BumpDensity",      1, GL_FLOAT, { 10.0, 0, 0, 0 }, -1 },
-   { "BumpSize",         1, GL_FLOAT, { 0.125, 0, 0, 0 }, -1 },
-   { "SpecularFactor",   1, GL_FLOAT, { 0.5, 0, 0, 0 }, -1 },
+   { "LightPosition",  1, GL_FLOAT_VEC3, { 0.57737, 0.57735, 0.57735, 0.0 }, -1 },
+   { "SurfaceColor",   1, GL_FLOAT_VEC3, { 0.8, 0.8, 0.2, 0 }, -1 },
+   { "BumpDensity",    1, GL_FLOAT, { 10.0, 0, 0, 0 }, -1 },
+   { "BumpSize",       1, GL_FLOAT, { 0.125, 0, 0, 0 }, -1 },
+   { "SpecularFactor", 1, GL_FLOAT, { 0.5, 0, 0, 0 }, -1 },
    END_OF_UNIFORMS
 };
 
@@ -242,7 +242,8 @@ Init(void)
 
    CheckError(__LINE__);
 
-   InitUniforms(program, Uniforms);
+   SetUniformValues(program, Uniforms);
+   PrintUniforms(Uniforms);
 
    CheckError(__LINE__);
 
@@ -280,7 +281,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(400, 400);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
    win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/convolutions.c b/progs/glsl/convolutions.c
index 22ce7edcdc..c2fb76e1aa 100644
--- a/progs/glsl/convolutions.c
+++ b/progs/glsl/convolutions.c
@@ -448,7 +448,6 @@ int main(int argc, char **argv)
 {
    glutInit(&argc, argv);
 
-   glutInitWindowPosition(0, 0);
    glutInitWindowSize(400, 400);
    glutInitDisplayMode(GLUT_RGB | GLUT_ALPHA | GLUT_DOUBLE);
 
diff --git a/progs/glsl/deriv.c b/progs/glsl/deriv.c
index 9cf1e40e3e..265a515715 100644
--- a/progs/glsl/deriv.c
+++ b/progs/glsl/deriv.c
@@ -220,7 +220,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(200, 200);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
    win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/fragcoord.c b/progs/glsl/fragcoord.c
index 9f56a038c9..3dfcec87a5 100644
--- a/progs/glsl/fragcoord.c
+++ b/progs/glsl/fragcoord.c
@@ -166,7 +166,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(WinWidth, WinHeight);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
    win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/identity.c b/progs/glsl/identity.c
index a772ccd716..526e9b82c1 100644
--- a/progs/glsl/identity.c
+++ b/progs/glsl/identity.c
@@ -187,7 +187,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(200, 200);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
    win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/mandelbrot.c b/progs/glsl/mandelbrot.c
index 38dffc3e74..b05ef37fae 100644
--- a/progs/glsl/mandelbrot.c
+++ b/progs/glsl/mandelbrot.c
@@ -25,7 +25,7 @@ static GLuint program;
 
 static struct uniform_info Uniforms[] = {
    /* vert */
-   { "LightPosition",        3, GL_FLOAT, { 0.1, 0.1, 9.0, 0}, -1 },
+   { "LightPosition",        1, GL_FLOAT_VEC3, { 0.1, 0.1, 9.0, 0}, -1 },
    { "SpecularContribution", 1, GL_FLOAT, { 0.5, 0, 0, 0 }, -1 },
    { "DiffuseContribution",  1, GL_FLOAT, { 0.5, 0, 0, 0 }, -1 },
    { "Shininess",            1, GL_FLOAT, { 20.0, 0, 0, 0 }, -1 },
@@ -34,9 +34,9 @@ static struct uniform_info Uniforms[] = {
    { "Zoom",                 1, GL_FLOAT, { 0.125, 0, 0, 0 }, -1 },
    { "Xcenter",              1, GL_FLOAT, { -1.5, 0, 0, 0 }, -1 },
    { "Ycenter",              1, GL_FLOAT, { .005, 0, 0, 0 }, -1 },
-   { "InnerColor",           3, GL_FLOAT, { 1, 0, 0, 0 }, -1 },
-   { "OuterColor1",          3, GL_FLOAT, { 0, 1, 0, 0 }, -1 },
-   { "OuterColor2",          3, GL_FLOAT, { 0, 0, 1, 0 }, -1 },
+   { "InnerColor",           1, GL_FLOAT_VEC3, { 1, 0, 0, 0 }, -1 },
+   { "OuterColor1",          1, GL_FLOAT_VEC3, { 0, 1, 0, 0 }, -1 },
+   { "OuterColor2",          1, GL_FLOAT_VEC3, { 0, 0, 1, 0 }, -1 },
    END_OF_UNIFORMS
 };
 
@@ -159,7 +159,8 @@ Init(void)
 
    glUseProgram(program);
 
-   InitUniforms(program, Uniforms);
+   SetUniformValues(program, Uniforms);
+   PrintUniforms(Uniforms);
 
    uZoom = glGetUniformLocation(program, "Zoom");
    uXcenter = glGetUniformLocation(program, "Xcenter");
@@ -198,7 +199,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(400, 400);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
    win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/mandelbrot.shtest b/progs/glsl/mandelbrot.shtest
new file mode 100644
index 0000000000..4f4e5c747e
--- /dev/null
+++ b/progs/glsl/mandelbrot.shtest
@@ -0,0 +1,13 @@
+vs CH18-mandel.vert
+fs CH18-mandel.frag
+uniform LightPosition        GL_FLOAT_VEC3 0.1 0.1 9.0
+uniform SpecularContribution GL_FLOAT 0.5
+uniform DiffuseContribution  GL_FLOAT 0.5
+uniform Shininess            GL_FLOAT 20.0
+uniform Iterations           GL_FLOAT 12
+uniform Zoom                 GL_FLOAT 0.125
+uniform Xcenter              GL_FLOAT -1.5
+uniform Ycenter              GL_FLOAT .005
+uniform InnerColor           GL_FLOAT_VEC3 1 0 0
+uniform OuterColor1          GL_FLOAT_VEC3 0 1 0
+uniform OuterColor2          GL_FLOAT_VEC3 0 0 1
diff --git a/progs/glsl/multinoise.c b/progs/glsl/multinoise.c
index 0afe230801..0d4026e29c 100644
--- a/progs/glsl/multinoise.c
+++ b/progs/glsl/multinoise.c
@@ -262,7 +262,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(400, 400);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
    win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/multitex.c b/progs/glsl/multitex.c
index 5e971716ad..6ec9c833e6 100644
--- a/progs/glsl/multitex.c
+++ b/progs/glsl/multitex.c
@@ -59,8 +59,8 @@ static GLint VertCoord_attr = -1, TexCoord0_attr = -1, TexCoord1_attr = -1;
 
 /* value[0] = tex unit */
 static struct uniform_info Uniforms[] = {
-   { "tex1",  1, GL_INT, { 0, 0, 0, 0 }, -1 },
-   { "tex2",  1, GL_INT, { 1, 0, 0, 0 }, -1 },
+   { "tex1",  1, GL_SAMPLER_2D, { 0, 0, 0, 0 }, -1 },
+   { "tex2",  1, GL_SAMPLER_2D, { 1, 0, 0, 0 }, -1 },
    END_OF_UNIFORMS
 };
 
@@ -134,7 +134,7 @@ DrawPolygonArray(void)
 
    if (VertCoord_attr >= 0) {
       glVertexAttribPointer(VertCoord_attr, 2, GL_FLOAT, GL_FALSE,
-                                 0, VertCoords);
+                                 0, vertPtr);
       glEnableVertexAttribArray(VertCoord_attr);
    }
    else {
@@ -143,11 +143,11 @@ DrawPolygonArray(void)
    }
 
    glVertexAttribPointer(TexCoord0_attr, 2, GL_FLOAT, GL_FALSE,
-                              0, Tex0Coords);
+                              0, tex0Ptr);
    glEnableVertexAttribArray(TexCoord0_attr);
 
    glVertexAttribPointer(TexCoord1_attr, 2, GL_FLOAT, GL_FALSE,
-                              0, Tex1Coords);
+                              0, tex1Ptr);
    glEnableVertexAttribArray(TexCoord1_attr);
 
    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
@@ -328,7 +328,8 @@ CreateProgram(const char *vertProgFile, const char *fragProgFile,
 
    glUseProgram(program);
 
-   InitUniforms(program, uniforms);
+   SetUniformValues(program, uniforms);
+   PrintUniforms(Uniforms);
 
    VertCoord_attr = glGetAttribLocation(program, "VertCoord");
    if (VertCoord_attr > 0) {
diff --git a/progs/glsl/multitex.shtest b/progs/glsl/multitex.shtest
new file mode 100644
index 0000000000..5be45f6c7c
--- /dev/null
+++ b/progs/glsl/multitex.shtest
@@ -0,0 +1,6 @@
+vs multitex.vert
+fs multitex.frag
+texture 0 ../images/tile.rgb
+texture 1 ../images/tree2.rgba
+uniform tex1  GL_SAMPLER_2D  0
+uniform tex2  GL_SAMPLER_2D  1
diff --git a/progs/glsl/noise.c b/progs/glsl/noise.c
index 59f594e78b..fdab263ea6 100644
--- a/progs/glsl/noise.c
+++ b/progs/glsl/noise.c
@@ -35,8 +35,8 @@ static const char *FragShaderText =
 
 
 static struct uniform_info Uniforms[] = {
-   { "Scale",    4, GL_FLOAT, { 0.5, 0.4, 0.0, 0}, -1 },
-   { "Bias",     4, GL_FLOAT, { 0.5, 0.3, 0.0, 0}, -1 },
+   { "Scale",    1, GL_FLOAT_VEC4, { 0.5, 0.4, 0.0, 0}, -1 },
+   { "Bias",     1, GL_FLOAT_VEC4, { 0.5, 0.3, 0.0, 0}, -1 },
    { "Slice",    1, GL_FLOAT, { 0.5, 0, 0, 0}, -1 },
    END_OF_UNIFORMS
 };
@@ -179,7 +179,8 @@ Init(void)
 
    glUseProgram(program);
 
-   InitUniforms(program, Uniforms);
+   SetUniformValues(program, Uniforms);
+   PrintUniforms(Uniforms);
 
    assert(glGetError() == 0);
 
@@ -199,7 +200,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(400, 400);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
    win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/noise2.c b/progs/glsl/noise2.c
index e972b62673..7a28f09947 100644
--- a/progs/glsl/noise2.c
+++ b/progs/glsl/noise2.c
@@ -186,7 +186,6 @@ static void Init (void)
 int main (int argc, char *argv[])
 {
 	glutInit (&argc, argv);
-	glutInitWindowPosition ( 0, 0);
 	glutInitWindowSize (200, 200);
 	glutInitDisplayMode (GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
 	glutCreateWindow (argv[0]);
diff --git a/progs/glsl/pointcoord.c b/progs/glsl/pointcoord.c
index 27b73a05de..5dced6fac3 100644
--- a/progs/glsl/pointcoord.c
+++ b/progs/glsl/pointcoord.c
@@ -187,7 +187,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(WinWidth, WinHeight);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
    win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/shadow_sampler.c b/progs/glsl/shadow_sampler.c
index 0a4d04dd8c..0adc9d88ba 100644
--- a/progs/glsl/shadow_sampler.c
+++ b/progs/glsl/shadow_sampler.c
@@ -321,7 +321,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(400, 300);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
    win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/shtest.c b/progs/glsl/shtest.c
new file mode 100644
index 0000000000..2622af1313
--- /dev/null
+++ b/progs/glsl/shtest.c
@@ -0,0 +1,629 @@
+/*
+ * Simple shader test harness.
+ * Brian Paul
+ * 13 Aug 2009
+ *
+ * Usage:
+ *   shtest --vs vertShaderFile --fs fragShaderFile
+ *
+ *   In this case the given vertex/frag shaders are read and compiled.
+ *   Random values are assigned to the uniforms.
+ *
+ * or:
+ *   shtest configFile
+ *
+ *   In this case a config file is read that specifies the file names
+ *   of the shaders plus initial values for uniforms.
+ *
+ * Example config file:
+ *
+ * vs shader.vert
+ * fs shader.frag
+ * uniform pi 3.14159
+ * uniform v1 1.0 0.5 0.2 0.3
+ *
+ */
+
+
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <GL/glew.h>
+#include <GL/glu.h>
+#include <GL/glut.h>
+#include "shaderutil.h"
+#include "readtex.h"
+
+
+typedef enum
+{
+   SPHERE,
+   CUBE,
+   NUM_SHAPES
+} shape;
+
+
+static char *FragShaderFile = NULL;
+static char *VertShaderFile = NULL;
+static char *ConfigFile = NULL;
+
+/* program/shader objects */
+static GLuint fragShader;
+static GLuint vertShader;
+static GLuint Program;
+
+
+#define MAX_UNIFORMS 100
+static struct uniform_info Uniforms[MAX_UNIFORMS];
+static GLuint NumUniforms = 0;
+
+
+#define MAX_ATTRIBS 100
+static struct attrib_info Attribs[MAX_ATTRIBS];
+static GLuint NumAttribs = 0;
+
+
+/**
+ * Config file info.
+ */
+struct config_file
+{
+   struct name_value
+   {
+      char name[100];
+      float value[4];
+      int type;
+   } uniforms[100];
+
+   int num_uniforms;
+};
+
+
+static GLint win = 0;
+static GLboolean Anim = GL_FALSE;
+static GLfloat TexRot = 0.0;
+static GLfloat xRot = 0.0f, yRot = 0.0f, zRot = 0.0f;
+static shape Object = SPHERE;
+
+
+static float
+RandomFloat(float min, float max)
+{
+   int k = rand() % 10000;
+   float x = min + (max - min) * k / 10000.0;
+   return x;
+}
+
+
+/** Set new random values for uniforms */
+static void
+RandomUniformValues(void)
+{
+   GLuint i;
+   for (i = 0; i < NumUniforms; i++) {
+      if (Uniforms[i].type == GL_FLOAT) {
+         Uniforms[i].value[0] = RandomFloat(0.0, 1.0);
+      }
+      else {
+         Uniforms[i].value[0] = RandomFloat(-1.0, 2.0);
+         Uniforms[i].value[1] = RandomFloat(-1.0, 2.0);
+         Uniforms[i].value[2] = RandomFloat(-1.0, 2.0);
+         Uniforms[i].value[3] = RandomFloat(-1.0, 2.0);
+      }
+   }
+}
+
+
+static void
+Idle(void)
+{
+   yRot += 2.0;
+   if (yRot > 360.0)
+      yRot -= 360.0;
+   glutPostRedisplay();
+}
+
+
+
+static void
+SquareVertex(GLfloat s, GLfloat t, GLfloat size)
+{
+   GLfloat x = -size + s * 2.0 * size;
+   GLfloat y = -size + t * 2.0 * size;
+   GLuint i;
+
+   glMultiTexCoord2f(GL_TEXTURE0, s, t);
+   glMultiTexCoord2f(GL_TEXTURE1, s, t);
+   glMultiTexCoord2f(GL_TEXTURE2, s, t);
+   glMultiTexCoord2f(GL_TEXTURE3, s, t);
+
+   /* assign (s,t) to the generic attributes */
+   for (i = 0; i < NumAttribs; i++) {
+      if (Attribs[i].location >= 0) {
+         glVertexAttrib2f(Attribs[i].location, s, t);
+      }
+   }
+
+   glVertex2f(x, y);
+}
+
+
+/*
+ * Draw a square, specifying normal and tangent vectors.
+ */
+static void
+Square(GLfloat size)
+{
+   GLint tangentAttrib = 1;
+   glNormal3f(0, 0, 1);
+   glVertexAttrib3f(tangentAttrib, 1, 0, 0);
+   glBegin(GL_POLYGON);
+#if 1
+   SquareVertex(0, 0, size);
+   SquareVertex(1, 0, size);
+   SquareVertex(1, 1, size);
+   SquareVertex(0, 1, size);
+#else
+   glTexCoord2f(0, 0);  glVertex2f(-size, -size);
+   glTexCoord2f(1, 0);  glVertex2f( size, -size);
+   glTexCoord2f(1, 1);  glVertex2f( size,  size);
+   glTexCoord2f(0, 1);  glVertex2f(-size,  size);
+#endif
+   glEnd();
+}
+
+
+static void
+Cube(GLfloat size)
+{
+   /* +X */
+   glPushMatrix();
+   glRotatef(90, 0, 1, 0);
+   glTranslatef(0, 0, size);
+   Square(size);
+   glPopMatrix();
+
+   /* -X */
+   glPushMatrix();
+   glRotatef(-90, 0, 1, 0);
+   glTranslatef(0, 0, size);
+   Square(size);
+   glPopMatrix();
+
+   /* +Y */
+   glPushMatrix();
+   glRotatef(90, 1, 0, 0);
+   glTranslatef(0, 0, size);
+   Square(size);
+   glPopMatrix();
+
+   /* -Y */
+   glPushMatrix();
+   glRotatef(-90, 1, 0, 0);
+   glTranslatef(0, 0, size);
+   Square(size);
+   glPopMatrix();
+
+
+   /* +Z */
+   glPushMatrix();
+   glTranslatef(0, 0, size);
+   Square(size);
+   glPopMatrix();
+
+   /* -Z */
+   glPushMatrix();
+   glRotatef(180, 0, 1, 0);
+   glTranslatef(0, 0, size);
+   Square(size);
+   glPopMatrix();
+}
+
+
+static void
+Sphere(GLfloat radius, GLint slices, GLint stacks)
+{
+   static GLUquadricObj *q = NULL;
+
+   if (!q) {
+      q = gluNewQuadric();
+      gluQuadricDrawStyle(q, GLU_FILL);
+      gluQuadricNormals(q, GLU_SMOOTH);
+      gluQuadricTexture(q, GL_TRUE);
+   }
+
+   gluSphere(q, radius, slices, stacks);
+}
+
+
+static void
+Redisplay(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+   
+   glPushMatrix();
+   glRotatef(xRot, 1.0f, 0.0f, 0.0f);
+   glRotatef(yRot, 0.0f, 1.0f, 0.0f);
+   glRotatef(zRot, 0.0f, 0.0f, 1.0f);
+
+   glMatrixMode(GL_TEXTURE);
+   glLoadIdentity();
+   glRotatef(TexRot, 0.0f, 1.0f, 0.0f);
+   glMatrixMode(GL_MODELVIEW);
+
+   if (Object == SPHERE) {
+      Sphere(2.0, 20, 10);
+   }
+   else if (Object == CUBE) {
+      Cube(2.0);
+   }
+
+   glPopMatrix();
+
+   glutSwapBuffers();
+}
+
+
+static void
+Reshape(int width, int height)
+{
+   glViewport(0, 0, width, height);
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+   glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0);
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+   glTranslatef(0.0f, 0.0f, -15.0f);
+}
+
+
+static void
+CleanUp(void)
+{
+   glDeleteShader(fragShader);
+   glDeleteShader(vertShader);
+   glDeleteProgram(Program);
+   glutDestroyWindow(win);
+}
+
+
+static void
+Key(unsigned char key, int x, int y)
+{
+   const GLfloat step = 2.0;
+  (void) x;
+  (void) y;
+
+   switch(key) {
+   case 'a':
+      Anim = !Anim;
+      if (Anim)
+         glutIdleFunc(Idle);
+      else
+         glutIdleFunc(NULL);
+      break;
+   case 'z':
+      zRot += step;
+      break;
+   case 'Z':
+      zRot -= step;
+      break;
+   case 'o':
+      Object = (Object + 1) % NUM_SHAPES;
+      break;
+   case 'r':
+      RandomUniformValues();
+      SetUniformValues(Program, Uniforms);
+      PrintUniforms(Uniforms);
+      break;
+   case 27:
+      CleanUp();
+      exit(0);
+      break;
+   }
+   glutPostRedisplay();
+}
+
+
+static void
+SpecialKey(int key, int x, int y)
+{
+   const GLfloat step = 2.0;
+
+  (void) x;
+  (void) y;
+
+   switch(key) {
+   case GLUT_KEY_UP:
+      xRot += step;
+      break;
+   case GLUT_KEY_DOWN:
+      xRot -= step;
+      break;
+   case GLUT_KEY_LEFT:
+      yRot -= step;
+      break;
+   case GLUT_KEY_RIGHT:
+      yRot += step;
+      break;
+   }
+   glutPostRedisplay();
+}
+
+
+static void
+InitUniforms(const struct config_file *conf,
+             struct uniform_info uniforms[])
+{
+   int i;
+
+   for (i = 0; i < conf->num_uniforms; i++) {
+      int j;
+      for (j = 0; uniforms[j].name; j++) {
+         if (strcmp(uniforms[j].name, conf->uniforms[i].name) == 0) {
+            uniforms[j].type = conf->uniforms[i].type;
+            uniforms[j].value[0] = conf->uniforms[i].value[0];
+            uniforms[j].value[1] = conf->uniforms[i].value[1];
+            uniforms[j].value[2] = conf->uniforms[i].value[2];
+            uniforms[j].value[3] = conf->uniforms[i].value[3];
+         }
+      }
+   }
+}
+
+
+static void
+LoadTexture(GLint unit, const char *texFileName)
+{
+   GLint imgWidth, imgHeight;
+   GLenum imgFormat;
+   GLubyte *image = NULL;
+   GLuint tex;
+   GLenum filter = GL_LINEAR;
+
+   image = LoadRGBImage(texFileName, &imgWidth, &imgHeight, &imgFormat);
+   if (!image) {
+      printf("Couldn't read %s\n", texFileName);
+      exit(1);
+   }
+
+   printf("Load Texture: unit %d: %s %d x %d\n",
+          unit, texFileName, imgWidth, imgHeight);
+
+   glActiveTexture(GL_TEXTURE0 + unit);
+   glGenTextures(1, &tex);
+   glBindTexture(GL_TEXTURE_2D, tex);
+
+   gluBuild2DMipmaps(GL_TEXTURE_2D, 4, imgWidth, imgHeight,
+                     imgFormat, GL_UNSIGNED_BYTE, image);
+   free(image);
+      
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
+}
+
+
+static GLenum
+TypeFromName(const char *n)
+{
+   static const struct {
+      const char *name;
+      GLenum type;
+   } types[] = {
+      { "GL_FLOAT", GL_FLOAT },
+      { "GL_FLOAT_VEC2", GL_FLOAT_VEC2 },
+      { "GL_FLOAT_VEC3", GL_FLOAT_VEC3 },
+      { "GL_FLOAT_VEC4", GL_FLOAT_VEC4 },
+      { "GL_INT", GL_INT },
+      { "GL_INT_VEC2", GL_INT_VEC2 },
+      { "GL_INT_VEC3", GL_INT_VEC3 },
+      { "GL_INT_VEC4", GL_INT_VEC4 },
+      { "GL_SAMPLER_2D", GL_SAMPLER_2D },
+      { NULL, 0 }
+   };
+   GLuint i;
+
+   for (i = 0; types[i].name; i++) {
+      if (strcmp(types[i].name, n) == 0)
+         return types[i].type;
+   }
+   abort();
+   return GL_NONE;
+}
+
+
+
+/**
+ * Read a config file.
+ */
+static void
+ReadConfigFile(const char *filename, struct config_file *conf)
+{
+   char line[1000];
+   FILE *f;
+
+   f = fopen(filename, "r");
+   if (!f) {
+      fprintf(stderr, "Unable to open config file %s\n", filename);
+      exit(1);
+   }
+
+   conf->num_uniforms = 0;
+
+   /* ugly but functional parser */
+   while (!feof(f)) {
+      fgets(line, sizeof(line), f);
+      if (!feof(f) && line[0]) {
+         if (strncmp(line, "vs ", 3) == 0) {
+            VertShaderFile = strdup(line + 3);
+            VertShaderFile[strlen(VertShaderFile) - 1] = 0;
+         }
+         else if (strncmp(line, "fs ", 3) == 0) {
+            FragShaderFile = strdup(line + 3);
+            FragShaderFile[strlen(FragShaderFile) - 1] = 0;
+         }
+         else if (strncmp(line, "texture ", 8) == 0) {
+            char texFileName[100];
+            int unit, k;
+            k = sscanf(line + 8, "%d %s", &unit, texFileName);
+            assert(k == 2);
+            LoadTexture(unit, texFileName);
+         }
+         else if (strncmp(line, "uniform ", 8) == 0) {
+            char name[1000], typeName[100];
+            int k;
+            float v1 = 0.0F, v2 = 0.0F, v3 = 0.0F, v4 = 0.0F;
+            GLenum type;
+
+            k = sscanf(line + 8, "%s %s %f %f %f %f", name, typeName,
+                       &v1, &v2, &v3, &v4);
+
+            type = TypeFromName(typeName);
+
+            strcpy(conf->uniforms[conf->num_uniforms].name, name);
+            conf->uniforms[conf->num_uniforms].value[0] = v1;
+            conf->uniforms[conf->num_uniforms].value[1] = v2;
+            conf->uniforms[conf->num_uniforms].value[2] = v3;
+            conf->uniforms[conf->num_uniforms].value[3] = v4;
+            conf->uniforms[conf->num_uniforms].type = type;
+            conf->num_uniforms++;
+         }
+         else {
+            if (strlen(line) > 1) {
+               fprintf(stderr, "syntax error in: %s\n", line);
+               break;
+            }
+         }
+      }
+   }
+
+   fclose(f);
+}
+
+
+static void
+Init(void)
+{
+   struct config_file config;
+   memset(&config, 0, sizeof(config));
+
+   if (ConfigFile)
+      ReadConfigFile(ConfigFile, &config);
+
+   if (!VertShaderFile) {
+      fprintf(stderr, "Error: no vertex shader\n");
+      exit(1);
+   }
+
+   if (!FragShaderFile) {
+      fprintf(stderr, "Error: no fragment shader\n");
+      exit(1);
+   }
+
+   if (!ShadersSupported())
+      exit(1);
+
+   vertShader = CompileShaderFile(GL_VERTEX_SHADER, VertShaderFile);
+   fragShader = CompileShaderFile(GL_FRAGMENT_SHADER, FragShaderFile);
+   Program = LinkShaders(vertShader, fragShader);
+
+   glUseProgram(Program);
+
+   NumUniforms = GetUniforms(Program, Uniforms);
+   if (config.num_uniforms) {
+      InitUniforms(&config, Uniforms);
+   }
+   else {
+      RandomUniformValues();
+   }
+   SetUniformValues(Program, Uniforms);
+   PrintUniforms(Uniforms);
+
+   NumAttribs = GetAttribs(Program, Attribs);
+   PrintAttribs(Attribs);
+
+   //assert(glGetError() == 0);
+
+   glClearColor(0.4f, 0.4f, 0.8f, 0.0f);
+
+   glEnable(GL_DEPTH_TEST);
+
+   glColor3f(1, 0, 0);
+}
+
+
+static void
+Keys(void)
+{
+   printf("Keyboard:\n");
+   printf("       a  Animation toggle\n");
+   printf("       r  Randomize uniform values\n");
+   printf("       o  Change object\n");
+   printf("  arrows  Rotate object\n");
+   printf("     ESC  Exit\n");
+}
+
+
+static void
+Usage(void)
+{
+   printf("Usage:\n");
+   printf("   shtest config.shtest\n");
+   printf("       Run w/ given config file.\n");
+   printf("   shtest --vs vertShader --fs fragShader\n");
+   printf("       Load/compile given shaders.\n");
+}
+
+
+static void
+ParseOptions(int argc, char *argv[])
+{
+   int i;
+
+   if (argc == 1) {
+      Usage();
+      exit(1);
+   }
+
+   for (i = 1; i < argc; i++) {
+      if (strcmp(argv[i], "--fs") == 0) {
+         FragShaderFile = argv[i+1];
+         i++;
+      }
+      else if (strcmp(argv[i], "--vs") == 0) {
+         VertShaderFile = argv[i+1];
+         i++;
+      }
+      else {
+         /* assume the arg is a config file */
+         ConfigFile = argv[i];
+         break;
+      }
+   }
+}
+
+
+int
+main(int argc, char *argv[])
+{
+   glutInit(&argc, argv);
+   glutInitWindowSize(400, 400);
+   glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
+   win = glutCreateWindow(argv[0]);
+   glewInit();
+   glutReshapeFunc(Reshape);
+   glutKeyboardFunc(Key);
+   glutSpecialFunc(SpecialKey);
+   glutDisplayFunc(Redisplay);
+   ParseOptions(argc, argv);
+   Init();
+   Keys();
+   glutMainLoop();
+   return 0;
+}
+
diff --git a/progs/glsl/texaaline.c b/progs/glsl/texaaline.c
index 1f566c86a6..2481c0f36e 100644
--- a/progs/glsl/texaaline.c
+++ b/progs/glsl/texaaline.c
@@ -351,7 +351,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(WinWidth, WinHeight);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
    win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/texdemo1.c b/progs/glsl/texdemo1.c
index d55f9e7dd9..5b1913a722 100644
--- a/progs/glsl/texdemo1.c
+++ b/progs/glsl/texdemo1.c
@@ -53,14 +53,14 @@ static int win = 0;
 
 
 static struct uniform_info ReflectUniforms[] = {
-   { "cubeTex",  1, GL_INT, { 0, 0, 0, 0 }, -1 },
-   { "lightPos", 3, GL_FLOAT, { 10, 10, 20, 0 }, -1 },
+   { "cubeTex",  1, GL_SAMPLER_CUBE, { 0, 0, 0, 0 }, -1 },
+   { "lightPos", 1, GL_FLOAT_VEC3, { 10, 10, 20, 0 }, -1 },
    END_OF_UNIFORMS
 };
 
 static struct uniform_info SimpleUniforms[] = {
-   { "tex2d",    1, GL_INT,   { 1, 0, 0, 0 }, -1 },
-   { "lightPos", 3, GL_FLOAT, { 10, 10, 20, 0 }, -1 },
+   { "tex2d",    1, GL_SAMPLER_2D, { 1, 0, 0, 0 }, -1 },
+   { "lightPos", 1, GL_FLOAT_VEC3, { 10, 10, 20, 0 }, -1 },
    END_OF_UNIFORMS
 };
 
@@ -382,7 +382,8 @@ CreateProgram(const char *vertProgFile, const char *fragProgFile,
 
    glUseProgram(program);
 
-   InitUniforms(program, uniforms);
+   SetUniformValues(program, uniforms);
+   PrintUniforms(uniforms);
 
    return program;
 }
diff --git a/progs/glsl/toyball.c b/progs/glsl/toyball.c
index 7fe27aebfe..c502f24077 100644
--- a/progs/glsl/toyball.c
+++ b/progs/glsl/toyball.c
@@ -24,18 +24,18 @@ static GLuint program;
 
 
 static struct uniform_info Uniforms[] = {
-   { "LightDir",       4, GL_FLOAT, { 0.57737, 0.57735, 0.57735, 0.0 }, -1 },
-   { "HVector",        4, GL_FLOAT, { 0.32506, 0.32506, 0.88808, 0.0 }, -1 },
-   { "BallCenter",     4, GL_FLOAT, { 0.0, 0.0, 0.0, 1.0 }, -1 },
-   { "SpecularColor",  4, GL_FLOAT, { 0.4, 0.4, 0.4, 60.0 }, -1 },
-   { "Red",         4, GL_FLOAT, { 0.6, 0.0, 0.0, 1.0 }, -1 },
-   { "Blue",        4, GL_FLOAT, { 0.0, 0.3, 0.6, 1.0 }, -1 },
-   { "Yellow",      4, GL_FLOAT, { 0.6, 0.5, 0.0, 1.0 }, -1 },
-   { "HalfSpace0",  4, GL_FLOAT, { 1.0, 0.0, 0.0, 0.2 }, -1 },
-   { "HalfSpace1",  4, GL_FLOAT, { 0.309016994, 0.951056516, 0.0, 0.2 }, -1 },
-   { "HalfSpace2",  4, GL_FLOAT, { -0.809016994, 0.587785252, 0.0, 0.2 }, -1 },
-   { "HalfSpace3",  4, GL_FLOAT, { -0.809016994, -0.587785252, 0.0, 0.2 }, -1 },
-   { "HalfSpace4",  4, GL_FLOAT, { 0.309116994, -0.951056516, 0.0, 0.2 }, -1 },
+   { "LightDir",    1, GL_FLOAT_VEC4, { 0.57737, 0.57735, 0.57735, 0.0 }, -1 },
+   { "HVector",     1, GL_FLOAT_VEC4, { 0.32506, 0.32506, 0.88808, 0.0 }, -1 },
+   { "BallCenter",  1, GL_FLOAT_VEC4, { 0.0, 0.0, 0.0, 1.0 }, -1 },
+   { "SpecularColor", 1, GL_FLOAT_VEC4, { 0.4, 0.4, 0.4, 60.0 }, -1 },
+   { "Red",         1, GL_FLOAT_VEC4, { 0.6, 0.0, 0.0, 1.0 }, -1 },
+   { "Blue",        1, GL_FLOAT_VEC4, { 0.0, 0.3, 0.6, 1.0 }, -1 },
+   { "Yellow",      1, GL_FLOAT_VEC4, { 0.6, 0.5, 0.0, 1.0 }, -1 },
+   { "HalfSpace0",  1, GL_FLOAT_VEC4, { 1.0, 0.0, 0.0, 0.2 }, -1 },
+   { "HalfSpace1",  1, GL_FLOAT_VEC4, { 0.309016994, 0.951056516, 0.0, 0.2 }, -1 },
+   { "HalfSpace2",  1, GL_FLOAT_VEC4, { -0.809016994, 0.587785252, 0.0, 0.2 }, -1 },
+   { "HalfSpace3",  1, GL_FLOAT_VEC4, { -0.809016994, -0.587785252, 0.0, 0.2 }, -1 },
+   { "HalfSpace4",  1, GL_FLOAT_VEC4, { 0.309116994, -0.951056516, 0.0, 0.2 }, -1 },
    { "InOrOutInit", 1, GL_FLOAT, { -3.0, 0, 0, 0 }, -1 },
    { "StripeWidth", 1, GL_FLOAT, {  0.3, 0, 0, 0 }, -1 },
    { "FWidth",      1, GL_FLOAT, { 0.005, 0, 0, 0 }, -1 },
@@ -173,7 +173,8 @@ Init(void)
 
    glUseProgram(program);
 
-   InitUniforms(program, Uniforms);
+   SetUniformValues(program, Uniforms);
+   PrintUniforms(Uniforms);
 
    assert(glGetError() == 0);
 
@@ -204,7 +205,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(400, 400);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
    win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/toyball.shtest b/progs/glsl/toyball.shtest
new file mode 100644
index 0000000000..887663abd3
--- /dev/null
+++ b/progs/glsl/toyball.shtest
@@ -0,0 +1,17 @@
+vs CH11-toyball.vert
+fs CH11-toyball.frag
+uniform LightDir      GL_FLOAT_VEC4 0.57737 0.57735 0.57735 0.0
+uniform HVector       GL_FLOAT_VEC4 0.32506 0.32506 0.88808 0.0
+uniform BallCenter    GL_FLOAT_VEC4 0.0 0.0 0.0 1.0
+uniform SpecularColor GL_FLOAT_VEC4 0.4 0.4 0.4 60.0
+uniform Red           GL_FLOAT_VEC4 0.6 0.0 0.0 1.0
+uniform Blue          GL_FLOAT_VEC4 0.0 0.3 0.6 1.0
+uniform Yellow        GL_FLOAT_VEC4 0.6 0.5 0.0 1.0
+uniform HalfSpace0    GL_FLOAT_VEC4 1.0 0.0 0.0 0.2
+uniform HalfSpace1    GL_FLOAT_VEC4 .309016994 0.951056516 0.0 0.2
+uniform HalfSpace2    GL_FLOAT_VEC4 -0.809016994 0.587785252 0.0 0.2
+uniform HalfSpace3    GL_FLOAT_VEC4 -0.809016994 -0.587785252 0.0 0.2
+uniform HalfSpace4    GL_FLOAT_VEC4 .309116994 -0.951056516 0.0 0.2
+uniform InOrOutInit   GL_FLOAT -3.0
+uniform StripeWidth   GL_FLOAT 0.3
+uniform FWidth        GL_FLOAT .005
diff --git a/progs/glsl/trirast.c b/progs/glsl/trirast.c
index f7546f25a2..53bd91ef97 100644
--- a/progs/glsl/trirast.c
+++ b/progs/glsl/trirast.c
@@ -239,7 +239,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(WinWidth, WinHeight);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
    win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/twoside.c b/progs/glsl/twoside.c
index b6c1b477dd..a57484f96c 100644
--- a/progs/glsl/twoside.c
+++ b/progs/glsl/twoside.c
@@ -285,7 +285,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(WinWidth, WinHeight);
    glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
    win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/vert-or-frag-only.c b/progs/glsl/vert-or-frag-only.c
index 81fcab8c5b..148991ca83 100644
--- a/progs/glsl/vert-or-frag-only.c
+++ b/progs/glsl/vert-or-frag-only.c
@@ -173,7 +173,6 @@ int
 main(int argc, char *argv[])
 {
    glutInit(&argc, argv);
-   glutInitWindowPosition( 0, 0);
    glutInitWindowSize(400, 200);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
    Win = glutCreateWindow(argv[0]);
diff --git a/progs/glsl/vert-tex.c b/progs/glsl/vert-tex.c
index e791a5759a..4c8bfa587a 100644
--- a/progs/glsl/vert-tex.c
+++ b/progs/glsl/vert-tex.c
@@ -43,7 +43,7 @@ static GLfloat xRot = -70.0f, yRot = 0.0f, zRot = 0.0f;
 
 /* value[0] = tex unit */
 static struct uniform_info Uniforms[] = {
-   { "tex1",  1, GL_INT, { 0, 0, 0, 0 }, -1 },
+   { "tex1",  1, GL_SAMPLER_2D, { 0, 0, 0, 0 }, -1 },
    END_OF_UNIFORMS
 };
 
diff --git a/progs/tests/SConscript b/progs/tests/SConscript
index b17fa90593..bb6a1d2b8a 100644
--- a/progs/tests/SConscript
+++ b/progs/tests/SConscript
@@ -72,6 +72,7 @@ progs = [
     'fogcoord',
     'fptest1',
     'fptexture',
+    'getteximage',
     'glutfx',
     'interleave',
     'invert',
diff --git a/progs/tests/floattex.c b/progs/tests/floattex.c
index ad14cacdcb..39302ce3af 100644
--- a/progs/tests/floattex.c
+++ b/progs/tests/floattex.c
@@ -33,7 +33,7 @@ static const char *VertShaderText =
    "} \n";
 
 static struct uniform_info Uniforms[] = {
-   { "tex1",  1, GL_INT, { 0, 0, 0, 0 }, -1 },
+   { "tex1",  1, GL_SAMPLER_2D, { 0, 0, 0, 0 }, -1 },
    END_OF_UNIFORMS
 };
 
@@ -189,7 +189,7 @@ CreateProgram(void)
 
    glUseProgram_func(program);
 
-   InitUniforms(program, Uniforms);
+   SetUniformValues(program, Uniforms);
 
    return program;
 }
diff --git a/progs/tests/getprocaddress.c b/progs/tests/getprocaddress.c
index ca66025d2d..a09ea58e1d 100644
--- a/progs/tests/getprocaddress.c
+++ b/progs/tests/getprocaddress.c
@@ -39,13 +39,2600 @@ typedef void (*generic_func)();
 
 #define EQUAL(X, Y)  (fabs((X) - (Y)) < 0.001)
 
-/**
+/* This macro simplifies the task of querying an extension function
+ * pointer and checking to see whether it resolved.
+ */
+#define DECLARE_GLFUNC_PTR(name,type) \
+   type name = (type) glXGetProcAddressARB((const GLubyte *) "gl" #name)
+
+/********************************************************************
+ * Generic helper functions used by the test functions.
+ */
+
+static void CheckGLError(int line, const char *file, const char *function)
+{
+    int errorCode;
+    glFinish();
+    errorCode  = glGetError();
+    if (errorCode == GL_NO_ERROR) return;
+    while (errorCode != GL_NO_ERROR) {
+	fprintf(stderr, "OpenGL error 0x%x (%s) at line %d of file %s in function %s()\n",
+	    errorCode,
+	    errorCode == GL_INVALID_VALUE? "GL_INVALID_VALUE":
+	    errorCode == GL_INVALID_ENUM? "GL_INVALID_ENUM":
+	    errorCode == GL_INVALID_OPERATION? "GL_INVALID_OPERATION":
+	    errorCode == GL_STACK_OVERFLOW? "GL_STACK_OVERFLOW":
+	    errorCode == GL_STACK_UNDERFLOW? "GL_STACK_UNDERFLOW":
+	    errorCode == GL_OUT_OF_MEMORY? "GL_OUT_OF_MEMORY":
+	    "unknown",
+	    line, file, function);
+	errorCode = glGetError();
+    }
+    fflush(stderr);
+}
+
+static GLboolean 
+compare_bytes(const char *errorLabel, GLuint expectedSize, 
+   const GLubyte *expectedData, GLuint actualSize, const GLubyte *actualData)
+{
+   int i;
+
+   if (expectedSize == actualSize &&
+      memcmp(expectedData, actualData, actualSize) == 0) {
+      /* All is well */
+      return GL_TRUE;
+   }
+
+   /* Trouble; we don't match.  Print out why. */
+   fprintf(stderr, "%s: actual data is not as expected\n", errorLabel);
+   for (i = 0; i <= 1; i++) {
+      const GLubyte *ptr;
+      int size;
+      char *label;
+      int j;
+
+      switch(i) {
+         case 0:
+            label = "expected";
+            size = expectedSize;
+            ptr = expectedData;
+            break;
+         case 1:
+            label = "  actual";
+            size = actualSize;
+            ptr = actualData;
+            break;
+      }
+      
+      fprintf(stderr, "    %s: size %d: {", label, size);
+      for (j = 0; j < size; j++) {
+         fprintf(stderr, "%s0x%02x", j > 0 ? ", " : "", ptr[j]);
+      }
+      fprintf(stderr, "}\n");
+   }
+
+   /* We fail if the data is unexpected. */
+   return GL_FALSE;
+}
+
+
+static GLboolean 
+compare_ints(const char *errorLabel, GLuint expectedSize, 
+   const GLint *expectedData, GLuint actualSize, const GLint *actualData)
+{
+   int i;
+
+   if (expectedSize == actualSize &&
+      memcmp(expectedData, actualData, actualSize*sizeof(*expectedData)) == 0) {
+      /* All is well */
+      return GL_TRUE;
+   }
+
+   /* Trouble; we don't match.  Print out why. */
+   fprintf(stderr, "%s: actual data is not as expected\n", errorLabel);
+   for (i = 0; i <= 1; i++) {
+      const GLint *ptr;
+      int size;
+      char *label;
+      int j;
+
+      switch(i) {
+         case 0:
+            label = "expected";
+            size = expectedSize;
+            ptr = expectedData;
+            break;
+         case 1:
+            label = "  actual";
+            size = actualSize;
+            ptr = actualData;
+            break;
+      }
+      
+      fprintf(stderr, "    %s: size %d: {", label, size);
+      for (j = 0; j < size; j++) {
+         fprintf(stderr, "%s%d", j > 0 ? ", " : "", ptr[j]);
+      }
+      fprintf(stderr, "}\n");
+   }
+
+   /* We fail if the data is unexpected. */
+   return GL_FALSE;
+}
+
+#define MAX_CONVERTED_VALUES 4
+static GLboolean 
+compare_shorts_to_ints(const char *errorLabel, GLuint expectedSize, 
+   const GLshort *expectedData, GLuint actualSize, const GLint *actualData)
+{
+   int i;
+   GLint convertedValues[MAX_CONVERTED_VALUES];
+
+   if (expectedSize > MAX_CONVERTED_VALUES) {
+      fprintf(stderr, "%s: too much data [need %d values, have %d values]\n",
+         errorLabel, expectedSize, MAX_CONVERTED_VALUES);
+      return GL_FALSE;
+   }
+
+   for (i = 0; i < expectedSize; i++) {
+      convertedValues[i] = (GLint) expectedData[i];
+   }
+
+   return compare_ints(errorLabel, expectedSize, convertedValues, 
+      actualSize, actualData);
+}
+
+static GLboolean 
+compare_floats(const char *errorLabel, GLuint expectedSize, 
+   const GLfloat *expectedData, GLuint actualSize, const GLfloat *actualData)
+{
+   int i;
+
+   if (expectedSize == actualSize &&
+      memcmp(expectedData, actualData, actualSize*sizeof(*expectedData)) == 0) {
+      /* All is well */
+      return GL_TRUE;
+   }
+
+   /* Trouble; we don't match.  Print out why. */
+   fprintf(stderr, "%s: actual data is not as expected\n", errorLabel);
+   for (i = 0; i <= 1; i++) {
+      const GLfloat *ptr;
+      int size;
+      char *label;
+      int j;
+
+      switch(i) {
+         case 0:
+            label = "expected";
+            size = expectedSize;
+            ptr = expectedData;
+            break;
+         case 1:
+            label = "  actual";
+            size = actualSize;
+            ptr = actualData;
+            break;
+      }
+      
+      fprintf(stderr, "    %s: size %d: {", label, size);
+      for (j = 0; j < size; j++) {
+         fprintf(stderr, "%s%f", j > 0 ? ", " : "", ptr[j]);
+      }
+      fprintf(stderr, "}\n");
+   }
+
+   /* We fail if the data is unexpected. */
+   return GL_FALSE;
+}
+
+static GLboolean 
+compare_doubles(const char *errorLabel, GLuint expectedSize, 
+   const GLdouble *expectedData, GLuint actualSize, const GLdouble *actualData)
+{
+   int i;
+
+   if (expectedSize == actualSize || 
+      memcmp(expectedData, actualData, actualSize*sizeof(*expectedData)) == 0) {
+      /* All is well */
+      return GL_TRUE;
+   }
+
+   /* Trouble; we don't match.  Print out why. */
+   fprintf(stderr, "%s: actual data is not as expected\n", errorLabel);
+   for (i = 0; i <= 1; i++) {
+      const GLdouble *ptr;
+      int size;
+      char *label;
+      int j;
+
+      switch(i) {
+         case 0:
+            label = "expected";
+            size = expectedSize;
+            ptr = expectedData;
+            break;
+         case 1:
+            label = "  actual";
+            size = actualSize;
+            ptr = actualData;
+            break;
+      }
+      
+      fprintf(stderr, "    %s: size %d: {", label, size);
+      for (j = 0; j < size; j++) {
+         fprintf(stderr, "%s%f", j > 0 ? ", " : "", ptr[j]);
+      }
+      fprintf(stderr, "}\n");
+   }
+
+   /* We fail if the data is unexpected. */
+   return GL_FALSE;
+}
+
+/********************************************************************
+ * Functions to assist with GL_ARB_texture_compressiong testing
+ */
+
+static GLboolean
+check_texture_format_supported(GLenum format)
+{
+   GLint numFormats;
+   GLint *formats;
+   register int i;
+
+   glGetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB, &numFormats);
+   formats = malloc(numFormats * sizeof(GLint));
+   if (formats == NULL) {
+      fprintf(stderr, "check_texture_format_supported: could not allocate memory for %d GLints\n", 
+         numFormats);
+      return GL_FALSE;
+   }
+   
+   memset(formats, 0, numFormats * sizeof(GLint));
+   glGetIntegerv(GL_COMPRESSED_TEXTURE_FORMATS_ARB, formats);
+
+   for (i = 0; i < numFormats; i++) {
+      if (formats[i] == format) {
+         free(formats);
+         return GL_TRUE;
+      }
+   }
+
+   /* We didn't find the format we were looking for.  Give an error. */
+#define FORMAT_NAME(x) (\
+   x == GL_COMPRESSED_RGB_FXT1_3DFX ? "GL_COMPRESSED_RGB_FXT1_3DFX" : \
+   x == GL_COMPRESSED_RGBA_FXT1_3DFX ? "GL_COMPRESSED_RGBA_FXT1_3DFX" : \
+   x == GL_COMPRESSED_RGB_S3TC_DXT1_EXT ? "GL_COMPRESSED_RGB_S3TC_DXT1_EXT" : \
+   x == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT ? "GL_COMPRESSED_RGBA_S3TC_DXT1_EXT" : \
+   x == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT ? "GL_COMPRESSED_RGBA_S3TC_DXT3_EXT" : \
+   x == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT ? "GL_COMPRESSED_RGBA_S3TC_DXT5_EXT" : \
+   x == GL_RGB_S3TC ? "GL_RGB_S3TC" : \
+   x == GL_RGB4_S3TC ? "GL_RGB4_S3TC" : \
+   x == GL_RGBA_S3TC ? "GL_RGBA_S3TC" : \
+   x == GL_RGBA4_S3TC ? "GL_RGBA4_S3TC" : \
+   "unknown")
+   fprintf(stderr, "check_texture_format_supported: unsupported format 0x%04x [%s]\n",
+      format, FORMAT_NAME(format));
+   fprintf(stderr, "supported formats:");
+   for (i = 0; i < numFormats; i++) {
+      fprintf(stderr, " 0x%04x [%s]", formats[i], FORMAT_NAME(formats[i]));
+   }
+   fprintf(stderr, "\n");
+   return GL_FALSE;
+}
+
+/* This helper function compresses an RGBA texture and compares it
+ * against the expected compressed data.  It returns GL_TRUE if all
+ * went as expected, or GL_FALSE in the case of error.
+ */
+static GLboolean
+check_texture_compression(const char *message, GLenum dimension,
+   GLint width, GLint height, GLint depth, const GLubyte *texture, 
+   int expectedCompressedSize, const GLubyte *expectedCompressedData)
+{
+   /* These are the data we query about the texture. */
+   GLint isCompressed;
+   GLenum compressedFormat;
+   GLint compressedSize;
+   GLubyte *compressedData;
+
+   /* We need this function pointer to operate. */
+   DECLARE_GLFUNC_PTR(GetCompressedTexImageARB, PFNGLGETCOMPRESSEDTEXIMAGEARBPROC);
+   if (GetCompressedTexImageARB == NULL) {
+      fprintf(stderr, 
+         "%s: could not query GetCompressedTexImageARB function pointer\n",
+         message);
+      return GL_FALSE;
+   }
+
+   /* Verify that we actually have the GL_COMPRESSED_RGBA_S3TC_DXT3_EXT format available. */
+   if (!check_texture_format_supported(GL_COMPRESSED_RGBA_S3TC_DXT3_EXT)) {
+      return GL_FALSE;
+   }
+
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+   /* Set up the base image, requesting that the GL library compress it. */
+   switch(dimension) {
+      case GL_TEXTURE_1D:
+         glTexImage1D(GL_TEXTURE_1D, 0, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 
+            width, 0, 
+            GL_RGBA, GL_UNSIGNED_BYTE, texture);
+         break;
+      case GL_TEXTURE_2D:
+         glTexImage2D(GL_TEXTURE_2D, 0, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 
+            width, height, 0, 
+            GL_RGBA, GL_UNSIGNED_BYTE, texture);
+         break;
+      case GL_TEXTURE_3D:
+         glTexImage3D(GL_TEXTURE_3D, 0, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 
+            width, height, depth, 0, 
+            GL_RGBA, GL_UNSIGNED_BYTE, texture);
+         break;
+      default:
+         fprintf(stderr, "%s: unknown dimension 0x%04x.\n", message, dimension);
+         return GL_FALSE;
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Make sure the texture is compressed, and pull it out if it is. */
+   glGetTexLevelParameteriv(dimension, 0, GL_TEXTURE_COMPRESSED_ARB, 
+      &isCompressed);
+   if (!isCompressed) {
+      fprintf(stderr, "%s: could not compress GL_COMPRESSED_RGBA_S3TC_DXT3_EXT texture\n",
+         message);
+      return GL_FALSE;
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+   glGetTexLevelParameteriv(dimension, 0, GL_TEXTURE_INTERNAL_FORMAT, 
+      (GLint *)&compressedFormat);
+   if (compressedFormat != GL_COMPRESSED_RGBA_S3TC_DXT3_EXT) {
+      fprintf(stderr, "%s: got internal format 0x%04x, expected GL_COMPRESSED_RGBA_S3TC_DXT3_EXT [0x%04x]\n",
+         __FUNCTION__, compressedFormat, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT);
+      return GL_FALSE;
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+   glGetTexLevelParameteriv(dimension, 0, GL_TEXTURE_COMPRESSED_IMAGE_SIZE_ARB, &compressedSize);
+   compressedData = malloc(compressedSize);
+   if (compressedData == NULL) {
+      fprintf(stderr, "%s: could not malloc %d bytes for compressed texture\n",
+         message, compressedSize);
+      return GL_FALSE;
+   }
+   memset(compressedData, 0, compressedSize);
+   (*GetCompressedTexImageARB)(dimension, 0, compressedData);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Compare it to the expected compressed data. The compare_bytes()
+    * call will print out diagnostics in the case of failure.
+    */
+   if (!compare_bytes(message, 
+      expectedCompressedSize, expectedCompressedData,
+      compressedSize, compressedData)) {
+
+      free(compressedData);
+      return GL_FALSE;
+   }
+
+   /* All done.  Free our allocated data and return success. */
+   free(compressedData);
+   return GL_TRUE;
+}
+
+/* We'll use one function to exercise 1D, 2D, and 3D textures. */
+
+/* The test function for compressed 3D texture images requires several
+ * different function pointers that have to be queried.  This function
+ * gets all the function pointers it needs itself, and so is suitable for 
+ * use to test any and all of the incorporated functions.
+ */
+
+static GLboolean
+exercise_CompressedTextures(GLenum dimension)
+{
+   /* Set up a basic (uncompressed) texture.  We're doing a blue/yellow
+    * checkerboard.  The 8x4/32-pixel board is well-suited to S3TC
+    * compression, which works on 4x4 blocks of pixels.
+    */
+#define B 0,0,255,255
+#define Y 255,255,0,255
+#define TEXTURE_WIDTH 16 
+#define TEXTURE_HEIGHT 4
+#define TEXTURE_DEPTH 1
+   static GLubyte texture[TEXTURE_WIDTH*TEXTURE_HEIGHT*TEXTURE_DEPTH*4] = {
+      B, B, Y, Y, B, B, Y, Y, B, B, Y, Y, B, B, Y, Y,
+      B, B, Y, Y, B, B, Y, Y, B, B, Y, Y, B, B, Y, Y,
+      Y, Y, B, B, Y, Y, B, B, Y, Y, B, B, Y, Y, B, B, 
+      Y, Y, B, B, Y, Y, B, B, Y, Y, B, B, Y, Y, B, B, 
+   };
+#undef B
+#undef Y
+   GLubyte uncompressedTexture[TEXTURE_WIDTH*TEXTURE_HEIGHT*TEXTURE_DEPTH*4];
+
+   /* We'll use this as a texture subimage. */
+#define R 255,0,0,255
+#define G 0,255,0,255
+#define SUBTEXTURE_WIDTH 4
+#define SUBTEXTURE_HEIGHT 4
+#define SUBTEXTURE_DEPTH 1
+   static GLubyte subtexture[SUBTEXTURE_WIDTH*SUBTEXTURE_HEIGHT*SUBTEXTURE_DEPTH*4] = {
+      G, G, R, R,
+      G, G, R, R,
+      R, R, G, G,
+      R, R, G, G,
+   };
+#undef R
+#undef G
+
+   /* These are the expected compressed textures.  (In the case of
+    * a failed comparison, the test program will print out the
+    * actual compressed data in a format that can be directly used
+    * here, if desired.)  The brave of heart can calculate the compression 
+    * themselves based on the formulae described at:
+    *   http://en.wikipedia.org/wiki/S3_Texture_Compression
+    * In a nutshell, each group of 16 bytes encodes a 4x4 texture block.
+    * The first eight bytes of each group are 4-bit alpha values
+    * for each of the 16 pixels in the texture block.
+    * The next four bytes in each group are LSB-first RGB565 colors; the
+    * first two bytes are identified as the color C0, and the next two
+    * are the color C1.  (Two more colors C2 and C3 will be calculated 
+    * from these, but do not appear in the compression data.)  The
+    * last 4 bytes of the group are sixteen 2-bit indices that, for
+    * each of the 16 pixels in the texture block, select one of the
+    * colors C0, C1, C2, or C3.
+    *
+    * For example, our blue/yellow checkerboard is made up of
+    * four identical 4x4 blocks.  Each of those blocks will
+    * be encoded as: eight bytes of 0xff (16 alpha values, each 0xf),
+    * C0 as the RGB565 color yellow (0xffe0), encoded LSB-first;
+    * C1 as the RGB565 color blue (0x001f), encoded LSB-first;
+    * and 4 bytes of 16 2-bit color indices reflecting the
+    * choice of color for each of the 16 pixels:
+    *     00, 00, 01, 01, = 0x05
+    *     00, 00, 01, 01, = 0x05
+    *     01, 01, 00, 00, = 0x50
+    *     01, 01, 00, 00, = 0x50
+    */
+   static GLubyte compressedTexture[] = {
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xe0, 0xff, 0x1f, 0x00, 0x05, 0x05, 0x50, 0x50,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xe0, 0xff, 0x1f, 0x00, 0x05, 0x05, 0x50, 0x50,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xe0, 0xff, 0x1f, 0x00, 0x05, 0x05, 0x50, 0x50,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xe0, 0xff, 0x1f, 0x00, 0x05, 0x05, 0x50, 0x50
+   };
+
+   /* The similar calculations for the 4x4 subtexture are left
+    * as an exercise for the reader.
+    */
+   static GLubyte compressedSubTexture[] = {
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0x00, 0xf8, 0xe0, 0x07, 0x05, 0x05, 0x50, 0x50,
+   };
+
+   /* The combined texture replaces the initial blue/yellow
+    * block with the green/red block.  (I'd wanted to do
+    * the more interesting exercise of putting the
+    * green/red block in the middle of the blue/yellow
+    * texture, which is a non-trivial replacement, but
+    * the attempt produces GL_INVALID_OPERATION, showing
+    * that you can only replace whole blocks of 
+    * subimages with S3TC.)  The combined texture looks
+    * like:
+    *      G G R R  B B Y Y  B B Y Y  B B Y Y
+    *      G G R R  B B Y Y  B B Y Y  B B Y Y
+    *      R R G G  Y Y B B  Y Y B B  Y Y B B 
+    *      R R G G  Y Y B B  Y Y B B  Y Y B B 
+    * which encodes just like the green/red block followed
+    * by 3 copies of the yellow/blue block.
+    */
+   static GLubyte compressedCombinedTexture[] = {
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0x00, 0xf8, 0xe0, 0x07, 0x05, 0x05, 0x50, 0x50,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xe0, 0xff, 0x1f, 0x00, 0x05, 0x05, 0x50, 0x50,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xe0, 0xff, 0x1f, 0x00, 0x05, 0x05, 0x50, 0x50,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xe0, 0xff, 0x1f, 0x00, 0x05, 0x05, 0x50, 0x50
+   };
+
+   /* These are the data we query about the texture. */
+   GLint queryIsCompressed;
+   GLenum queryCompressedFormat;
+   GLint queryCompressedSize;
+   GLubyte queryCompressedData[sizeof(compressedTexture)];
+
+   /* Query the function pointers we need.  We actually won't need most
+    * of these (the "dimension" parameter dictates whether we're testing
+    * 1D, 2D, or 3D textures), but we'll have them all ready just in case.
+    */
+   DECLARE_GLFUNC_PTR(GetCompressedTexImageARB, PFNGLGETCOMPRESSEDTEXIMAGEARBPROC);
+   DECLARE_GLFUNC_PTR(CompressedTexImage3DARB, PFNGLCOMPRESSEDTEXIMAGE3DARBPROC);
+   DECLARE_GLFUNC_PTR(CompressedTexSubImage3DARB, PFNGLCOMPRESSEDTEXSUBIMAGE3DARBPROC);
+   DECLARE_GLFUNC_PTR(CompressedTexImage2DARB, PFNGLCOMPRESSEDTEXIMAGE2DARBPROC);
+   DECLARE_GLFUNC_PTR(CompressedTexSubImage2DARB, PFNGLCOMPRESSEDTEXSUBIMAGE2DARBPROC);
+   DECLARE_GLFUNC_PTR(CompressedTexImage1DARB, PFNGLCOMPRESSEDTEXIMAGE1DARBPROC);
+   DECLARE_GLFUNC_PTR(CompressedTexSubImage1DARB, PFNGLCOMPRESSEDTEXSUBIMAGE1DARBPROC);
+
+   /* If the necessary functions are missing, we can't continue */
+   if (GetCompressedTexImageARB == NULL) {
+      fprintf(stderr, "%s: GetCompressedTexImageARB function is missing\n",
+         __FUNCTION__);
+      return GL_FALSE;
+   }
+   switch (dimension) {
+      case GL_TEXTURE_1D:
+         if (CompressedTexImage1DARB == NULL || CompressedTexSubImage1DARB == NULL) {
+            fprintf(stderr, "%s: 1D compressed texture functions are missing\n",
+               __FUNCTION__);
+            return GL_FALSE;
+         };
+         break;
+      case GL_TEXTURE_2D:
+         if (CompressedTexImage2DARB == NULL || CompressedTexSubImage2DARB == NULL) {
+            fprintf(stderr, "%s: 2D compressed texture functions are missing\n",
+               __FUNCTION__);
+            return GL_FALSE;
+         };
+         break;
+      case GL_TEXTURE_3D:
+         if (CompressedTexImage3DARB == NULL || CompressedTexSubImage3DARB == NULL) {
+            fprintf(stderr, "%s: 3D compressed texture functions are missing\n",
+               __FUNCTION__);
+            return GL_FALSE;
+         };
+         break;
+      default:
+         fprintf(stderr, "%s: unknown texture dimension 0x%04x passed.\n",
+            __FUNCTION__, dimension);
+         return GL_FALSE;
+   }
+   
+   /* Check the compression of our base texture image. */
+   if (!check_texture_compression("texture compression", dimension,
+         TEXTURE_WIDTH, TEXTURE_HEIGHT, TEXTURE_DEPTH, texture,
+         sizeof(compressedTexture), compressedTexture)) {
+
+      /* Something's wrong with texture compression.  The function
+       * above will have printed an appropriate error.
+       */
+      return GL_FALSE;
+   }
+
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Do the same for our texture subimage */
+   if (!check_texture_compression("subtexture compression", dimension,
+         SUBTEXTURE_WIDTH, SUBTEXTURE_HEIGHT, SUBTEXTURE_DEPTH, subtexture,
+         sizeof(compressedSubTexture), compressedSubTexture)) {
+
+      /* Something's wrong with texture compression.  The function
+       * above will have printed an appropriate error.
+       */
+      return GL_FALSE;
+   }
+
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Send the base compressed texture down to the hardware. */
+   switch(dimension) {
+      case GL_TEXTURE_3D:
+         (*CompressedTexImage3DARB)(GL_TEXTURE_3D, 0, 
+            GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 
+            TEXTURE_WIDTH, TEXTURE_HEIGHT, TEXTURE_DEPTH, 0, 
+            sizeof(compressedTexture), compressedTexture);
+         break;
+
+      case GL_TEXTURE_2D:
+         (*CompressedTexImage2DARB)(GL_TEXTURE_2D, 0, 
+            GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 
+            TEXTURE_WIDTH, TEXTURE_HEIGHT, 0, 
+            sizeof(compressedTexture), compressedTexture);
+         break;
+
+      case GL_TEXTURE_1D:
+         (*CompressedTexImage1DARB)(GL_TEXTURE_1D, 0, 
+            GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 
+            TEXTURE_WIDTH, 0, 
+            sizeof(compressedTexture), compressedTexture);
+         break;
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* For grins, query it to make sure it is as expected. */
+   glGetTexLevelParameteriv(dimension, 0, GL_TEXTURE_COMPRESSED_ARB, 
+      &queryIsCompressed);
+   if (!queryIsCompressed) {
+      fprintf(stderr, "%s: compressed texture did not come back as compressed\n",
+         __FUNCTION__);
+      return GL_FALSE;
+   }
+   glGetTexLevelParameteriv(dimension, 0, GL_TEXTURE_INTERNAL_FORMAT, 
+      (GLint *)&queryCompressedFormat);
+   if (queryCompressedFormat != GL_COMPRESSED_RGBA_S3TC_DXT3_EXT) {
+      fprintf(stderr, "%s: got internal format 0x%04x, expected GL_COMPRESSED_RGBA_S3TC_DXT3_EXT [0x%04x]\n",
+         __FUNCTION__, queryCompressedFormat, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT);
+      return GL_FALSE;
+   }
+   glGetTexLevelParameteriv(dimension, 0, GL_TEXTURE_COMPRESSED_IMAGE_SIZE_ARB, 
+      &queryCompressedSize);
+   if (queryCompressedSize != sizeof(compressedTexture)) {
+      fprintf(stderr, "%s: compressed 3D texture changed size: expected %d, actual %d\n",
+         __FUNCTION__, sizeof(compressedTexture), queryCompressedSize);
+      return GL_FALSE;
+   }
+   (*GetCompressedTexImageARB)(dimension, 0, queryCompressedData);
+   if (!compare_bytes(
+      "exercise_CompressedTextures:doublechecking compressed texture",
+      sizeof(compressedTexture), compressedTexture,
+      queryCompressedSize, queryCompressedData)) {
+      return GL_FALSE;
+   }
+
+   /* Now apply the texture subimage.  The current implementation of
+    * S3TC requires that subimages be only applied to whole blocks.
+    */
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+   switch(dimension) {
+      case GL_TEXTURE_3D:
+         (*CompressedTexSubImage3DARB)(GL_TEXTURE_3D, 0, 
+            0, 0, 0, /* offsets */
+            SUBTEXTURE_WIDTH, SUBTEXTURE_HEIGHT, SUBTEXTURE_DEPTH,
+            GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 
+            sizeof(compressedSubTexture), compressedSubTexture);
+         break;
+      case GL_TEXTURE_2D:
+         (*CompressedTexSubImage2DARB)(GL_TEXTURE_2D, 0, 
+            0, 0, /* offsets */
+            SUBTEXTURE_WIDTH, SUBTEXTURE_HEIGHT,
+            GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 
+            sizeof(compressedSubTexture), compressedSubTexture);
+         break;
+      case GL_TEXTURE_1D:
+         (*CompressedTexSubImage2DARB)(GL_TEXTURE_2D, 0, 
+            0, 0, /* offsets */
+            SUBTEXTURE_WIDTH, SUBTEXTURE_HEIGHT,
+            GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 
+            sizeof(compressedSubTexture), compressedSubTexture);
+         break;
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query the compressed texture back now, and see that it
+    * is as expected.
+    */
+   (*GetCompressedTexImageARB)(dimension, 0, queryCompressedData);
+   if (!compare_bytes("exercise_CompressedTextures:combined texture",
+      sizeof(compressedCombinedTexture), compressedCombinedTexture,
+      queryCompressedSize, queryCompressedData)) {
+      return GL_FALSE;
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Just for the exercise, uncompress the texture and pull it out. 
+    * We don't check it because the compression is lossy, so it won't
+    * compare exactly to the source texture; we just 
+    * want to exercise the code paths that convert it.
+    */
+   glGetTexImage(dimension, 0, GL_RGBA, GL_UNSIGNED_BYTE, uncompressedTexture);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* If we survived this far, we pass. */
+   return GL_TRUE;
+}
+
+/**************************************************************************
+ * Functions to assist with GL_EXT_framebuffer_object and
+ * GL_EXT_framebuffer_blit testing.
+ */
+
+#define FB_STATUS_NAME(x) (\
+   x == GL_FRAMEBUFFER_COMPLETE_EXT ? "GL_FRAMEBUFFER_COMPLETE_EXT" : \
+   x == GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT ? "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT" : \
+   x == GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT ? "GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT" : \
+   x == GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT ? "GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT" : \
+   x == GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT ? "GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT" : \
+   x == GL_FRAMEBUFFER_UNSUPPORTED_EXT ? "GL_FRAMEBUFFER_UNSUPPORTED_EXT" : \
+   x == GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT ? "GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT" : \
+   x == GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT ? "GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT" : \
+   x == GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT ? "GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT" : \
+   "unknown")
+
+static GLboolean
+exercise_framebuffer(void)
+{
+   GLuint framebufferID = 0;
+   GLuint renderbufferID = 0;
+   
+   /* Dimensions of the framebuffer and renderbuffers are arbitrary.
+    * Since they won't be shown on-screen, we can use whatever we want.
+    */
+   const GLint Width = 100;
+   const GLint Height = 100;
+
+   /* Every function we use will be referenced through function pointers.
+    * This will allow this test program to run on OpenGL implementations
+    * that *don't* implement these extensions (though the implementation
+    * used to compile them must have up-to-date header files).
+    */
+   DECLARE_GLFUNC_PTR(GenFramebuffersEXT, PFNGLGENFRAMEBUFFERSEXTPROC);
+   DECLARE_GLFUNC_PTR(IsFramebufferEXT, PFNGLISFRAMEBUFFEREXTPROC);
+   DECLARE_GLFUNC_PTR(DeleteFramebuffersEXT, PFNGLDELETEFRAMEBUFFERSEXTPROC);
+   DECLARE_GLFUNC_PTR(BindFramebufferEXT, PFNGLBINDFRAMEBUFFEREXTPROC);
+   DECLARE_GLFUNC_PTR(GenRenderbuffersEXT, PFNGLGENRENDERBUFFERSEXTPROC);
+   DECLARE_GLFUNC_PTR(IsRenderbufferEXT, PFNGLISRENDERBUFFEREXTPROC);
+   DECLARE_GLFUNC_PTR(DeleteRenderbuffersEXT, PFNGLDELETERENDERBUFFERSEXTPROC);
+   DECLARE_GLFUNC_PTR(BindRenderbufferEXT, PFNGLBINDRENDERBUFFEREXTPROC);
+   DECLARE_GLFUNC_PTR(FramebufferRenderbufferEXT, PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC);
+   DECLARE_GLFUNC_PTR(RenderbufferStorageEXT, PFNGLRENDERBUFFERSTORAGEEXTPROC);
+   DECLARE_GLFUNC_PTR(CheckFramebufferStatusEXT, PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC);
+
+   /* The BlitFramebuffer function comes from a different extension.
+    * It's possible for an implementation to implement all the above,
+    * but not BlitFramebuffer; so it's okay if this one comes back
+    * NULL, as we can still test the rest.
+    */
+   DECLARE_GLFUNC_PTR(BlitFramebufferEXT, PFNGLBLITFRAMEBUFFEREXTPROC);
+
+   /* We cannot test unless we have all the function pointers. */
+   if (
+      GenFramebuffersEXT == NULL ||
+      IsFramebufferEXT == NULL || 
+      DeleteFramebuffersEXT == NULL ||
+      BindFramebufferEXT == NULL ||
+      GenRenderbuffersEXT == NULL ||
+      IsRenderbufferEXT == NULL ||
+      DeleteRenderbuffersEXT == NULL ||
+      BindRenderbufferEXT == NULL ||
+      FramebufferRenderbufferEXT == NULL ||
+      RenderbufferStorageEXT == NULL ||
+      CheckFramebufferStatusEXT == NULL
+   ) {
+      fprintf(stderr, "%s: could not locate all framebuffer functions\n",
+         __FUNCTION__);
+      return GL_FALSE;
+   }
+
+   /* Generate a framebuffer for us to play with. */
+   (*GenFramebuffersEXT)(1, &framebufferID);
+   if (framebufferID == 0) {
+      fprintf(stderr, "%s: failed to generate a frame buffer ID.\n",
+         __FUNCTION__);
+      return GL_FALSE;
+   }
+   /* The generated name is not a framebuffer object until bound. */
+   (*BindFramebufferEXT)(GL_FRAMEBUFFER_EXT, framebufferID);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+   if (!(*IsFramebufferEXT)(framebufferID)) {
+      fprintf(stderr, "%s: generated a frame buffer ID 0x%x that wasn't a framebuffer\n",
+         __FUNCTION__, framebufferID);
+      (*BindFramebufferEXT)(GL_FRAMEBUFFER_EXT, 0);
+      (*DeleteFramebuffersEXT)(1, &framebufferID);
+      return GL_FALSE;
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+   {
+      GLint queriedFramebufferID;
+      glGetIntegerv(GL_FRAMEBUFFER_BINDING_EXT, &queriedFramebufferID);
+      if (queriedFramebufferID != framebufferID) {
+         fprintf(stderr, "%s: bound frame buffer 0x%x, but queried 0x%x\n",
+            __FUNCTION__, framebufferID, queriedFramebufferID);
+         (*BindFramebufferEXT)(GL_FRAMEBUFFER_EXT, 0);
+         (*DeleteFramebuffersEXT)(1, &framebufferID);
+         return GL_FALSE;
+      }
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Create a color buffer to attach to the frame buffer object, so
+    * we can actually operate on it.  We go through the same basic checks
+    * with the renderbuffer that we do with the framebuffer.
+    */
+   (*GenRenderbuffersEXT)(1, &renderbufferID);
+   if (renderbufferID == 0) {
+      fprintf(stderr, "%s: could not generate a renderbuffer ID\n",
+         __FUNCTION__);
+      (*BindFramebufferEXT)(GL_FRAMEBUFFER_EXT, 0);
+      (*DeleteFramebuffersEXT)(1, &framebufferID);
+      return GL_FALSE;
+   }
+   (*BindRenderbufferEXT)(GL_RENDERBUFFER_EXT, renderbufferID);
+   if (!(*IsRenderbufferEXT)(renderbufferID)) {
+      fprintf(stderr, "%s: generated renderbuffer 0x%x is not a renderbuffer\n",
+         __FUNCTION__, renderbufferID);
+      (*BindRenderbufferEXT)(GL_RENDERBUFFER_EXT, 0);
+      (*DeleteRenderbuffersEXT)(1, &renderbufferID);
+      (*BindFramebufferEXT)(GL_FRAMEBUFFER_EXT, 0);
+      (*DeleteFramebuffersEXT)(1, &framebufferID);
+      return GL_FALSE;
+   }
+   {
+      GLint queriedRenderbufferID = 0;
+      glGetIntegerv(GL_RENDERBUFFER_BINDING_EXT, &queriedRenderbufferID);
+      if (renderbufferID != queriedRenderbufferID) {
+         fprintf(stderr, "%s: bound renderbuffer 0x%x, but got 0x%x\n",
+            __FUNCTION__, renderbufferID, queriedRenderbufferID);
+         (*BindRenderbufferEXT)(GL_RENDERBUFFER_EXT, 0);
+         (*DeleteRenderbuffersEXT)(1, &renderbufferID);
+         (*BindFramebufferEXT)(GL_FRAMEBUFFER_EXT, 0);
+         (*DeleteFramebuffersEXT)(1, &framebufferID);
+         return GL_FALSE;
+      }
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Add the renderbuffer as a color attachment to the current
+    * framebuffer (which is our generated framebuffer).
+    */
+   (*FramebufferRenderbufferEXT)(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT,
+      GL_RENDERBUFFER_EXT, renderbufferID);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* The renderbuffer will need some dimensions and storage space. */
+   (*RenderbufferStorageEXT)(GL_RENDERBUFFER_EXT, GL_RGB, Width, Height);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* That should be everything we need.  If we set up to draw and to
+    * read from our color attachment, we should be "framebuffer complete",
+    * meaning the framebuffer is ready to go.
+    */
+   glDrawBuffer(GL_COLOR_ATTACHMENT1_EXT);
+   glReadBuffer(GL_COLOR_ATTACHMENT1_EXT);
+   {
+      GLenum status = (*CheckFramebufferStatusEXT)(GL_FRAMEBUFFER_EXT);
+      if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+         fprintf(stderr, "%s: framebuffer not complete; status = %s [0x%x]\n",
+            __FUNCTION__, FB_STATUS_NAME(status), status);
+         glReadBuffer(0);
+         glDrawBuffer(0);
+         (*BindRenderbufferEXT)(GL_RENDERBUFFER_EXT, 0);
+         (*DeleteRenderbuffersEXT)(1, &renderbufferID);
+         (*BindFramebufferEXT)(GL_FRAMEBUFFER_EXT, 0);
+         (*DeleteFramebuffersEXT)(1, &framebufferID);
+         return GL_FALSE;
+      }
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Define the contents of the frame buffer */
+   glClearColor(0.5, 0.5, 0.5, 0.0);
+   glClear(GL_COLOR_BUFFER_BIT);
+
+   /* If the GL_EXT_framebuffer_blit is supported, attempt a framebuffer
+    * blit from (5,5)-(10,10) to (90,90)-(95,95).  This is *not* an
+    * error if framebuffer_blit is *not* supported (as we can still
+    * effectively test the other functions).
+    */
+   if (BlitFramebufferEXT != NULL) {
+      (*BlitFramebufferEXT)(5, 5, 10, 10, 90, 90, 95, 95,
+         GL_COLOR_BUFFER_BIT, GL_NEAREST);
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* We could now test to see whether the framebuffer had the desired
+    * contents.  As this is just a touch test, we'll leave that for now.
+    * Clean up and go home.
+    */
+   glReadBuffer(0);
+   glDrawBuffer(0);
+   (*BindRenderbufferEXT)(GL_RENDERBUFFER_EXT, 0);
+   (*DeleteRenderbuffersEXT)(1, &renderbufferID);
+   (*BindFramebufferEXT)(GL_FRAMEBUFFER_EXT, 0);
+   (*DeleteFramebuffersEXT)(1, &framebufferID);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   return GL_TRUE;
+}
+
+/**************************************************************************
+ * Functions to assist with GL_ARB_shader_objects testing.
+ */
+
+static void
+print_info_log(const char *message, GLhandleARB object)
+{
+   DECLARE_GLFUNC_PTR(GetObjectParameterivARB, PFNGLGETOBJECTPARAMETERIVARBPROC);
+   DECLARE_GLFUNC_PTR(GetInfoLogARB, PFNGLGETINFOLOGARBPROC);
+   int logLength, queryLength;
+   char *log;
+
+   if (GetObjectParameterivARB == NULL) {
+      fprintf(stderr, "%s: could not get GetObjectParameterivARB address\n",
+         message);
+      return;
+   }
+   if (GetInfoLogARB == NULL) {
+      fprintf(stderr, "%s: could not get GetInfoLogARB address\n",
+         message);
+      return;
+   }
+
+   (*GetObjectParameterivARB)(object, GL_OBJECT_INFO_LOG_LENGTH_ARB, 
+      &logLength);
+   if (logLength == 0) {
+      fprintf(stderr, "%s: info log length is 0\n", message);
+      return;
+   }
+   log = malloc(logLength);
+   if (log == NULL) {
+      fprintf(stderr, "%s: could not malloc %d bytes for info log\n",
+         message, logLength);
+   }
+   else {
+      (*GetInfoLogARB)(object, logLength, &queryLength, log);
+      fprintf(stderr, "%s: info log says '%s'\n",
+         message, log);
+   }
+   free(log);
+}
+
+static GLboolean
+exercise_uniform_start(const char *fragmentShaderText, const char *uniformName,
+   GLhandleARB *returnProgram, GLint *returnUniformLocation)
+{
+   DECLARE_GLFUNC_PTR(CreateShaderObjectARB, PFNGLCREATESHADEROBJECTARBPROC);
+   DECLARE_GLFUNC_PTR(ShaderSourceARB, PFNGLSHADERSOURCEARBPROC);
+   DECLARE_GLFUNC_PTR(CompileShaderARB, PFNGLCOMPILESHADERARBPROC);
+   DECLARE_GLFUNC_PTR(CreateProgramObjectARB, PFNGLCREATEPROGRAMOBJECTARBPROC);
+   DECLARE_GLFUNC_PTR(AttachObjectARB, PFNGLATTACHOBJECTARBPROC);
+   DECLARE_GLFUNC_PTR(LinkProgramARB, PFNGLLINKPROGRAMARBPROC);
+   DECLARE_GLFUNC_PTR(UseProgramObjectARB, PFNGLUSEPROGRAMOBJECTARBPROC);
+   DECLARE_GLFUNC_PTR(ValidateProgramARB, PFNGLVALIDATEPROGRAMARBPROC);
+   DECLARE_GLFUNC_PTR(GetUniformLocationARB, PFNGLGETUNIFORMLOCATIONARBPROC);
+   DECLARE_GLFUNC_PTR(DeleteObjectARB, PFNGLDELETEOBJECTARBPROC);
+   DECLARE_GLFUNC_PTR(GetObjectParameterivARB, PFNGLGETOBJECTPARAMETERIVARBPROC);
+   GLhandleARB fs, program;
+   GLint uniformLocation;
+   GLint shaderCompiled, programValidated;
+
+   if (CreateShaderObjectARB == NULL ||
+       ShaderSourceARB == NULL ||
+       CompileShaderARB == NULL ||
+       CreateProgramObjectARB == NULL ||
+       AttachObjectARB == NULL ||
+       LinkProgramARB == NULL ||
+       UseProgramObjectARB == NULL ||
+       ValidateProgramARB == NULL ||
+       GetUniformLocationARB == NULL ||
+       DeleteObjectARB == NULL ||
+       GetObjectParameterivARB == NULL ||
+       0) {
+      return GL_FALSE;
+   }
+
+   /* Create the trivial fragment shader and program.  For safety
+    * we'll check to make sure they compile and link correctly.
+    */
+   fs = (*CreateShaderObjectARB)(GL_FRAGMENT_SHADER_ARB);
+   (*ShaderSourceARB)(fs, 1, &fragmentShaderText, NULL);
+   (*CompileShaderARB)(fs);
+   (*GetObjectParameterivARB)(fs, GL_OBJECT_COMPILE_STATUS_ARB,
+      &shaderCompiled);
+   if (!shaderCompiled) {
+      print_info_log("shader did not compile", fs);
+      (*DeleteObjectARB)(fs);
+      CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+      return GL_FALSE;
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   program = (*CreateProgramObjectARB)();
+   (*AttachObjectARB)(program, fs);
+   (*LinkProgramARB)(program);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Make sure we're going to run successfully */
+   (*ValidateProgramARB)(program);
+   (*GetObjectParameterivARB)(program, GL_OBJECT_VALIDATE_STATUS_ARB, 
+      &programValidated);
+   if (!programValidated) {; 
+      print_info_log("program did not validate", program);
+      (*DeleteObjectARB)(program);
+      (*DeleteObjectARB)(fs);
+      CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+      return GL_FALSE;
+   }
+
+   /* Put the program in place.  We're not allowed to assign to uniform
+    * variables used by the program until the program is put into use.
+    */
+   (*UseProgramObjectARB)(program);
+
+   /* Once the shader is in place, we're free to delete it; this
+    * won't affect the copy that's part of the program.
+    */
+   (*DeleteObjectARB)(fs);
+
+   /* Find the location index of the uniform variable we declared;
+    * the caller will ned that to set the value.
+    */
+   uniformLocation = (*GetUniformLocationARB)(program, uniformName);
+   if (uniformLocation == -1) {
+      fprintf(stderr, "%s: could not determine uniform location\n",
+         __FUNCTION__);
+      (*DeleteObjectARB)(program);
+      CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+      return GL_FALSE;
+   }
+
+   /* All done with what we're supposed to do - return the program
+    * handle and the uniform location to the caller.
+    */
+   *returnProgram = program;
+   *returnUniformLocation = uniformLocation;
+   return GL_TRUE;
+}
+
+static void
+exercise_uniform_end(GLhandleARB program)
+{
+   DECLARE_GLFUNC_PTR(UseProgramObjectARB, PFNGLUSEPROGRAMOBJECTARBPROC);
+   DECLARE_GLFUNC_PTR(DeleteObjectARB, PFNGLDELETEOBJECTARBPROC);
+   if (UseProgramObjectARB == NULL || DeleteObjectARB == NULL) {
+      return;
+   }
+
+   /* Turn off our program by setting the special value 0, and
+    * then delete the program object.
+    */
+   (*UseProgramObjectARB)(0);
+   (*DeleteObjectARB)(program);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+}
+
+/**************************************************************************
+ * Exercises for fences
+ */
+static GLboolean
+exercise_fences(void)
+{
+   DECLARE_GLFUNC_PTR(DeleteFencesNV, PFNGLDELETEFENCESNVPROC);
+   DECLARE_GLFUNC_PTR(FinishFenceNV, PFNGLFINISHFENCENVPROC);
+   DECLARE_GLFUNC_PTR(GenFencesNV, PFNGLGENFENCESNVPROC);
+   DECLARE_GLFUNC_PTR(GetFenceivNV, PFNGLGETFENCEIVNVPROC);
+   DECLARE_GLFUNC_PTR(IsFenceNV, PFNGLISFENCENVPROC);
+   DECLARE_GLFUNC_PTR(SetFenceNV, PFNGLSETFENCENVPROC);
+   DECLARE_GLFUNC_PTR(TestFenceNV, PFNGLTESTFENCENVPROC);
+   GLuint fence;
+   GLint fenceStatus, fenceCondition;
+   int count;
+
+   /* Make sure we have all the function pointers we need. */
+   if (GenFencesNV == NULL ||
+      SetFenceNV == NULL ||
+      IsFenceNV == NULL ||
+      GetFenceivNV == NULL ||
+      TestFenceNV == NULL ||
+      FinishFenceNV == NULL ||
+      DeleteFencesNV == NULL) {
+      fprintf(stderr, "%s: don't have all the fence functions\n",
+         __FUNCTION__);
+      return GL_FALSE;
+   }
+
+   /* Create and set a simple fence. */
+   (*GenFencesNV)(1, &fence);
+   (*SetFenceNV)(fence, GL_ALL_COMPLETED_NV);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Make sure it reads as a fence. */
+   if (!(*IsFenceNV)(fence)) {
+      fprintf(stderr, "%s: set fence is not a fence\n", __FUNCTION__);
+      (*DeleteFencesNV)(1, &fence);
+      return GL_FALSE;
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Try to read back its current status and condition. */
+   (*GetFenceivNV)(fence, GL_FENCE_CONDITION_NV, &fenceCondition);
+   if (fenceCondition != GL_ALL_COMPLETED_NV) {
+      fprintf(stderr, "%s: expected fence condition 0x%x, got 0x%x\n",
+         __FUNCTION__, GL_ALL_COMPLETED_NV, fenceCondition);
+      (*DeleteFencesNV)(1, &fence);
+      return GL_FALSE;
+   }
+   (*GetFenceivNV)(fence, GL_FENCE_STATUS_NV, &fenceStatus);
+   if (fenceStatus != GL_TRUE && fenceStatus != GL_FALSE) {
+      fprintf(stderr,"%s: fence status should be GL_TRUE or GL_FALSE, got 0x%x\n",
+         __FUNCTION__, fenceStatus);
+      (*DeleteFencesNV)(1, &fence);
+      return GL_FALSE;
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Set the fence again, query its status, and wait for it to finish
+    * two different ways: once by looping on TestFence(), and a 
+    * second time by a simple call to FinishFence();
+    */
+   (*SetFenceNV)(fence, GL_ALL_COMPLETED_NV);
+   glFlush();
+   count = 1;
+   while (!(*TestFenceNV)(fence)) {
+      count++;
+      if (count == 0) {
+         break;
+      }
+   }
+   if (count == 0) {
+      fprintf(stderr, "%s: fence never returned true\n", __FUNCTION__);
+      (*DeleteFencesNV)(1, &fence);
+      return GL_FALSE;
+   }
+   (*SetFenceNV)(fence, GL_ALL_COMPLETED_NV);
+   (*FinishFenceNV)(fence);
+   if ((*TestFenceNV)(fence) != GL_TRUE) {
+      fprintf(stderr, "%s: finished fence does not have status GL_TRUE\n",
+         __FUNCTION__);
+      (*DeleteFencesNV)(1, &fence);
+      return GL_FALSE;
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* All done.  Delete the fence and return. */
+   (*DeleteFencesNV)(1, &fence);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+   return GL_TRUE;
+}
+
+/**************************************************************************
+ * Exercises for buffer objects
+ */
+enum Map_Buffer_Usage{ Use_Map_Buffer, Use_Map_Buffer_Range};
+static GLboolean
+exercise_buffer_objects(enum Map_Buffer_Usage usage)
+{
+#define BUFFER_DATA_SIZE 1024
+   GLuint bufferID;
+   GLint bufferMapped;
+   static GLubyte data[BUFFER_DATA_SIZE] = {0};
+   float *dataPtr;
+
+   /* Get the function pointers we need.  These are from
+    * GL_ARB_vertex_buffer_object and are required in all
+    * cases.
+    */
+   DECLARE_GLFUNC_PTR(GenBuffersARB, PFNGLGENBUFFERSARBPROC);
+   DECLARE_GLFUNC_PTR(BindBufferARB, PFNGLBINDBUFFERARBPROC);
+   DECLARE_GLFUNC_PTR(BufferDataARB, PFNGLBUFFERDATAARBPROC);
+   DECLARE_GLFUNC_PTR(MapBufferARB, PFNGLMAPBUFFERARBPROC);
+   DECLARE_GLFUNC_PTR(UnmapBufferARB, PFNGLUNMAPBUFFERARBPROC);
+   DECLARE_GLFUNC_PTR(DeleteBuffersARB, PFNGLDELETEBUFFERSARBPROC);
+   DECLARE_GLFUNC_PTR(GetBufferParameterivARB, PFNGLGETBUFFERPARAMETERIVARBPROC);
+
+   /* These are from GL_ARB_map_buffer_range, and are optional
+    * unless we're given Use_Map_Buffer_Range.  Note that they do *not*
+    * have the standard "ARB" suffixes; this is because the extension
+    * was introduced *after* a superset was standardized in OpenGL 3.0.
+    * (The extension really only exists to allow the functionality on
+    * devices that cannot implement a full OpenGL 3.0 driver.)
+    */
+   DECLARE_GLFUNC_PTR(FlushMappedBufferRange, PFNGLFLUSHMAPPEDBUFFERRANGEPROC);
+   DECLARE_GLFUNC_PTR(MapBufferRange, PFNGLMAPBUFFERRANGEPROC);
+   
+   /* This is from APPLE_flush_buffer_range, and is optional even if
+    * we're given Use_Map_Buffer_Range.  Test it before using it.
+    */
+   DECLARE_GLFUNC_PTR(BufferParameteriAPPLE, PFNGLBUFFERPARAMETERIAPPLEPROC);
+
+   /* Make sure we have all the function pointers we need. */
+   if (GenBuffersARB == NULL ||
+      BindBufferARB == NULL ||
+      BufferDataARB == NULL ||
+      MapBufferARB == NULL ||
+      UnmapBufferARB == NULL ||
+      DeleteBuffersARB == NULL ||
+      GetBufferParameterivARB == NULL) {
+      fprintf(stderr, "%s: missing basic MapBuffer functions\n", __FUNCTION__);
+      return GL_FALSE;
+   }
+   if (usage == Use_Map_Buffer_Range) {
+      if (FlushMappedBufferRange == NULL || MapBufferRange == NULL) {
+         fprintf(stderr, "%s: missing MapBufferRange functions\n", __FUNCTION__);
+         return GL_FALSE;
+      }
+   }
+
+   /* Create and define a buffer */
+   (*GenBuffersARB)(1, &bufferID);
+   (*BindBufferARB)(GL_ARRAY_BUFFER_ARB, bufferID);
+   (*BufferDataARB)(GL_ARRAY_BUFFER_ARB, BUFFER_DATA_SIZE, data, 
+      GL_DYNAMIC_DRAW_ARB);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* If we're using MapBufferRange, and if the BufferParameteriAPPLE
+    * function is present, use it before mapping.  This particular
+    * use is a no-op, intended just to exercise the entry point.
+    */
+   if (usage == Use_Map_Buffer_Range && BufferParameteriAPPLE != NULL) {
+      (*BufferParameteriAPPLE)(GL_ARRAY_BUFFER_ARB, 
+         GL_BUFFER_SERIALIZED_MODIFY_APPLE, GL_TRUE);
+   }
+
+   /* Map it, and make sure it's mapped. */
+   switch(usage) {
+      case Use_Map_Buffer:
+         dataPtr = (float *) (*MapBufferARB)(
+            GL_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB);
+         break;
+      case Use_Map_Buffer_Range:
+         dataPtr = (float *)(*MapBufferRange)(GL_ARRAY_BUFFER_ARB,
+            4, 16, GL_MAP_WRITE_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
+         break;
+   }
+   if (dataPtr == NULL) {
+      fprintf(stderr, "%s: %s returned NULL\n", __FUNCTION__,
+         usage == Use_Map_Buffer ? "MapBuffer" : "MapBufferRange");
+      (*BindBufferARB)(GL_ARRAY_BUFFER_ARB, 0);
+      (*DeleteBuffersARB)(1, &bufferID);
+      return GL_FALSE;
+   }
+   (*GetBufferParameterivARB)(GL_ARRAY_BUFFER_ARB, GL_BUFFER_MAPPED_ARB, 
+      &bufferMapped);
+   if (!bufferMapped) {
+      fprintf(stderr, "%s: buffer should be mapped but isn't\n", __FUNCTION__);
+      (*BindBufferARB)(GL_ARRAY_BUFFER_ARB, 0);
+      (*DeleteBuffersARB)(1, &bufferID);
+      return GL_FALSE;
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Write something to it, just to make sure we don't segfault. */
+   *dataPtr = 1.5;
+
+   /* Unmap to show we're finished with the buffer.  Note that if we're
+    * using MapBufferRange, we first have to flush the range we modified.
+    */
+   if (usage == Use_Map_Buffer_Range) {
+      (*FlushMappedBufferRange)(GL_ARRAY_BUFFER_ARB, 4, 16);
+   }
+   if (!(*UnmapBufferARB)(GL_ARRAY_BUFFER_ARB)) {
+      fprintf(stderr, "%s: UnmapBuffer failed\n", __FUNCTION__);
+      (*BindBufferARB)(GL_ARRAY_BUFFER_ARB, 0);
+      (*DeleteBuffersARB)(1, &bufferID);
+      return GL_FALSE;
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* All done. */
+   (*BindBufferARB)(GL_ARRAY_BUFFER_ARB, 0);
+   (*DeleteBuffersARB)(1, &bufferID);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+   return GL_TRUE;
+
+#undef BUFFER_DATA_SIZE
+}
+
+/**************************************************************************
+ * Exercises for occlusion query
+ */
+static GLboolean
+exercise_occlusion_query(void)
+{
+   GLuint queryObject;
+   GLint queryReady;
+   GLuint querySampleCount;
+   GLint queryCurrent;
+   GLint queryCounterBits;
+
+   /* Get the function pointers we need.  These are from
+    * GL_ARB_vertex_buffer_object and are required in all
+    * cases.
+    */
+   DECLARE_GLFUNC_PTR(GenQueriesARB, PFNGLGENQUERIESARBPROC);
+   DECLARE_GLFUNC_PTR(BeginQueryARB, PFNGLBEGINQUERYARBPROC);
+   DECLARE_GLFUNC_PTR(GetQueryivARB, PFNGLGETQUERYIVARBPROC);
+   DECLARE_GLFUNC_PTR(EndQueryARB, PFNGLENDQUERYARBPROC);
+   DECLARE_GLFUNC_PTR(IsQueryARB, PFNGLISQUERYARBPROC);
+   DECLARE_GLFUNC_PTR(GetQueryObjectivARB, PFNGLGETQUERYOBJECTIVARBPROC);
+   DECLARE_GLFUNC_PTR(GetQueryObjectuivARB, PFNGLGETQUERYOBJECTUIVARBPROC);
+   DECLARE_GLFUNC_PTR(DeleteQueriesARB, PFNGLDELETEQUERIESARBPROC);
+
+   /* Make sure we have all the function pointers we need. */
+   if (GenQueriesARB == NULL ||
+      BeginQueryARB == NULL ||
+      GetQueryivARB == NULL ||
+      EndQueryARB == NULL ||
+      IsQueryARB == NULL ||
+      GetQueryObjectivARB == NULL ||
+      GetQueryObjectuivARB == NULL ||
+      DeleteQueriesARB == NULL) {
+      fprintf(stderr, "%s: don't have all the Query functions\n", __FUNCTION__);
+      return GL_FALSE;
+   }
+
+   /* Create a query object, and start a query. */
+   (*GenQueriesARB)(1, &queryObject);
+   (*BeginQueryARB)(GL_SAMPLES_PASSED_ARB, queryObject);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* While we're in the query, check the functions that are supposed
+    * to return which query we're in and how many bits of resolution
+    * we get.
+    */
+   (*GetQueryivARB)(GL_SAMPLES_PASSED_ARB, GL_CURRENT_QUERY_ARB, &queryCurrent);
+   if (queryCurrent != queryObject) {
+      fprintf(stderr, "%s: current query 0x%x != set query 0x%x\n",
+         __FUNCTION__, queryCurrent, queryObject);
+      (*EndQueryARB)(GL_SAMPLES_PASSED_ARB);
+      (*DeleteQueriesARB)(1, &queryObject);
+      return GL_FALSE;
+   }
+   (*GetQueryivARB)(GL_SAMPLES_PASSED_ARB, GL_QUERY_COUNTER_BITS_ARB, 
+      &queryCounterBits);
+   if (queryCounterBits < 1) {
+      fprintf(stderr, "%s: query counter bits is too small (%d)\n",
+         __FUNCTION__, queryCounterBits);
+      (*EndQueryARB)(GL_SAMPLES_PASSED_ARB);
+      (*DeleteQueriesARB)(1, &queryObject);
+      return GL_FALSE;
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Finish up the query.  Since we didn't draw anything, the result
+    * should be 0 passed samples.
+    */
+   (*EndQueryARB)(GL_SAMPLES_PASSED_ARB);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Routine existence test */
+   if (!(*IsQueryARB)(queryObject)) {
+      fprintf(stderr, "%s: query object 0x%x fails existence test\n",
+         __FUNCTION__, queryObject);
+      (*DeleteQueriesARB)(1, &queryObject);
+      return GL_FALSE;
+   }
+
+   /* Loop until the query is ready, then get back the result.  We use
+    * the signed query for the boolean value of whether the result is
+    * available, but the unsigned query to actually pull the result;
+    * this is just to test both entrypoints, but in a real query you may
+    * need the extra bit of resolution.
+    */
+   queryReady = GL_FALSE;
+   do {
+      (*GetQueryObjectivARB)(queryObject, GL_QUERY_RESULT_AVAILABLE_ARB, 
+         &queryReady);
+   } while (!queryReady);
+   (*GetQueryObjectuivARB)(queryObject, GL_QUERY_RESULT_ARB, &querySampleCount);
+   (*DeleteQueriesARB)(1, &queryObject);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* If sample count isn't 0, something's funny. */
+   if (querySampleCount > 0) {
+      fprintf(stderr, "%s: expected query result of 0, got %ud\n",
+         __FUNCTION__, querySampleCount);
+      return GL_FALSE;
+   }
+
+   /* Here, all is well. */
+   return GL_TRUE;
+}
+
+/**************************************************************************
  * The following functions are used to check that the named OpenGL function
  * actually does what it's supposed to do.
- * The naming of these functions is signficant.  The getprocaddress.py script
+ * The naming of these functions is significant.  The getprocaddress.py script
  * scans this file and extracts these function names.
  */
 
+static GLboolean
+test_WeightPointerARB(generic_func func)
+{
+   /* Assume we have at least 2 vertex units (or this extension makes
+    * no sense), and establish a set of 2-element vector weights.
+    * We use floats that can be represented exactly in binary
+    * floating point formats so we can compare correctly later.
+    * We also make sure the 0th entry matches the default weights,
+    * so we can restore the default easily.
+    */
+#define USE_VERTEX_UNITS 2
+#define USE_WEIGHT_INDEX 3
+   static GLfloat weights[] = {
+      1.0,   0.0,
+      0.875, 0.125,
+      0.75,  0.25,
+      0.625, 0.375,
+      0.5,   0.5,
+      0.375, 0.625,
+      0.25,  0.75,
+      0.125, 0.875, 
+      0.0,   1.0,
+   };
+   GLint numVertexUnits;
+   GLfloat *currentWeights;
+   int i;
+   int errorCount = 0;
+
+   PFNGLWEIGHTPOINTERARBPROC WeightPointerARB = (PFNGLWEIGHTPOINTERARBPROC) func;
+
+   /* Make sure we have at least two vertex units */
+   glGetIntegerv(GL_MAX_VERTEX_UNITS_ARB, &numVertexUnits);
+   if (numVertexUnits < USE_VERTEX_UNITS) {
+      fprintf(stderr, "%s: need %d vertex units, got %d\n", 
+         __FUNCTION__, USE_VERTEX_UNITS, numVertexUnits);
+      return GL_FALSE;
+   }
+   
+   /* Make sure we allocate enough room to query all the current weights */
+   currentWeights = (GLfloat *)malloc(numVertexUnits * sizeof(GLfloat));
+   if (currentWeights == NULL) {
+      fprintf(stderr, "%s: couldn't allocate room for %d floats\n",
+         __FUNCTION__, numVertexUnits);
+      return GL_FALSE;
+   }
+
+   /* Set up the pointer, enable the state, and try to send down a
+    * weight vector (we'll arbitrarily send index 2).
+    */
+   (*WeightPointerARB)(USE_VERTEX_UNITS, GL_FLOAT, 0, weights);
+   glEnableClientState(GL_WEIGHT_ARRAY_ARB);
+   glArrayElement(USE_WEIGHT_INDEX);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Verify that it changed the current state. */
+   glGetFloatv(GL_CURRENT_WEIGHT_ARB, currentWeights);
+   for (i = 0; i < numVertexUnits; i++) {
+      if (i < USE_VERTEX_UNITS) {
+         /* This is one of the units we explicitly set. */
+         if (currentWeights[i] != weights[USE_VERTEX_UNITS*USE_WEIGHT_INDEX + i]) {
+            fprintf(stderr, "%s: current weight at index %d is %f, should be %f\n",
+               __FUNCTION__, i, currentWeights[i], 
+               weights[USE_VERTEX_UNITS*USE_WEIGHT_INDEX + i]);
+            errorCount++;
+         }
+      }
+      else {
+         /* All other weights should be 0. */
+         if (currentWeights[i] != 0.0) {
+            fprintf(stderr, "%s: current weight at index %d is %f, should be %f\n",
+               __FUNCTION__, i, 0.0,
+               weights[USE_VERTEX_UNITS*USE_WEIGHT_INDEX + i]);
+            errorCount++;
+         }
+      }
+   }
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Restore the old state.  We know the default set of weights is in
+    * index 0.
+    */
+   glArrayElement(0);
+   glDisableClientState(GL_WEIGHT_ARRAY_ARB);
+   (*WeightPointerARB)(0, GL_FLOAT, 0, NULL);
+   free(currentWeights);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* We're fine if we didn't get any mismatches. */
+   if (errorCount == 0) {
+      return GL_TRUE;
+   }
+   else {
+      return GL_FALSE;
+   }
+}
+
+/* Wrappers on the exercise_occlusion_query function */
+static GLboolean
+test_GenQueriesARB(generic_func func)
+{
+   (void) func;
+   return exercise_occlusion_query();
+}
+static GLboolean
+test_BeginQueryARB(generic_func func)
+{
+   (void) func;
+   return exercise_occlusion_query();
+}
+static GLboolean
+test_GetQueryivARB(generic_func func)
+{
+   (void) func;
+   return exercise_occlusion_query();
+}
+static GLboolean
+test_EndQueryARB(generic_func func)
+{
+   (void) func;
+   return exercise_occlusion_query();
+}
+static GLboolean
+test_IsQueryARB(generic_func func)
+{
+   (void) func;
+   return exercise_occlusion_query();
+}
+static GLboolean
+test_GetQueryObjectivARB(generic_func func)
+{
+   (void) func;
+   return exercise_occlusion_query();
+}
+static GLboolean
+test_GetQueryObjectuivARB(generic_func func)
+{
+   (void) func;
+   return exercise_occlusion_query();
+}
+static GLboolean
+test_DeleteQueriesARB(generic_func func)
+{
+   (void) func;
+   return exercise_occlusion_query();
+}
+
+/* Wrappers on the exercise_buffer_objects() function */
+static GLboolean
+test_GenBuffersARB(generic_func func)
+{
+   (void) func;
+   return exercise_buffer_objects(Use_Map_Buffer);
+}
+static GLboolean
+test_BindBufferARB(generic_func func)
+{
+   (void) func;
+   return exercise_buffer_objects(Use_Map_Buffer);
+}
+static GLboolean
+test_BufferDataARB(generic_func func)
+{
+   (void) func;
+   return exercise_buffer_objects(Use_Map_Buffer);
+}
+static GLboolean
+test_MapBufferARB(generic_func func)
+{
+   (void) func;
+   return exercise_buffer_objects(Use_Map_Buffer);
+}
+static GLboolean
+test_UnmapBufferARB(generic_func func)
+{
+   (void) func;
+   return exercise_buffer_objects(Use_Map_Buffer);
+}
+static GLboolean
+test_DeleteBuffersARB(generic_func func)
+{
+   (void) func;
+   return exercise_buffer_objects(Use_Map_Buffer);
+}
+static GLboolean
+test_GetBufferParameterivARB(generic_func func)
+{
+   (void) func;
+   return exercise_buffer_objects(Use_Map_Buffer);
+}
+static GLboolean
+test_FlushMappedBufferRange(generic_func func)
+{
+   (void) func;
+   return exercise_buffer_objects(Use_Map_Buffer_Range);
+}
+static GLboolean
+test_MapBufferRange(generic_func func)
+{
+   (void) func;
+   return exercise_buffer_objects(Use_Map_Buffer_Range);
+}
+static GLboolean
+test_BufferParameteriAPPLE(generic_func func)
+{
+   (void) func;
+   return exercise_buffer_objects(Use_Map_Buffer_Range);
+}
+
+/* Wrappers on the exercise_framebuffer() function */
+static GLboolean
+test_BindFramebufferEXT(generic_func func)
+{
+   (void) func;
+   return exercise_framebuffer();
+}
+static GLboolean
+test_BindRenderbufferEXT(generic_func func)
+{
+   (void) func;
+   return exercise_framebuffer();
+}
+static GLboolean
+test_CheckFramebufferStatusEXT(generic_func func)
+{
+   (void) func;
+   return exercise_framebuffer();
+}
+static GLboolean
+test_DeleteFramebuffersEXT(generic_func func)
+{
+   (void) func;
+   return exercise_framebuffer();
+}
+static GLboolean
+test_DeleteRenderbuffersEXT(generic_func func)
+{
+   (void) func;
+   return exercise_framebuffer();
+}
+static GLboolean
+test_FramebufferRenderbufferEXT(generic_func func)
+{
+   (void) func;
+   return exercise_framebuffer();
+}
+static GLboolean
+test_GenFramebuffersEXT(generic_func func)
+{
+   (void) func;
+   return exercise_framebuffer();
+}
+static GLboolean
+test_GenRenderbuffersEXT(generic_func func)
+{
+   (void) func;
+   return exercise_framebuffer();
+}
+static GLboolean
+test_IsFramebufferEXT(generic_func func)
+{
+   (void) func;
+   return exercise_framebuffer();
+}
+static GLboolean
+test_IsRenderbufferEXT(generic_func func)
+{
+   (void) func;
+   return exercise_framebuffer();
+}
+static GLboolean
+test_RenderbufferStorageEXT(generic_func func)
+{
+   (void) func;
+   return exercise_framebuffer();
+}
+static GLboolean
+test_BlitFramebufferEXT(generic_func func)
+{
+   (void) func;
+   return exercise_framebuffer();
+}
+
+/* These are wrappers on the exercise_CompressedTextures function. 
+ * Unfortunately, we cannot test the 1D counterparts, because the
+ * texture compressions available all support 2D and higher only.
+ */
+static GLboolean
+test_CompressedTexImage2DARB(generic_func func)
+{
+   (void) func;
+   return exercise_CompressedTextures(GL_TEXTURE_2D);
+}
+static GLboolean
+test_CompressedTexSubImage2DARB(generic_func func)
+{
+   (void) func;
+   return exercise_CompressedTextures(GL_TEXTURE_2D);
+}
+static GLboolean
+test_CompressedTexImage3DARB(generic_func func)
+{
+   (void) func;
+   return exercise_CompressedTextures(GL_TEXTURE_3D);
+}
+static GLboolean
+test_CompressedTexSubImage3DARB(generic_func func)
+{
+   (void) func;
+   return exercise_CompressedTextures(GL_TEXTURE_3D);
+}
+static GLboolean
+test_GetCompressedTexImageARB(generic_func func)
+{
+   (void) func;
+   return exercise_CompressedTextures(GL_TEXTURE_3D);
+}
+
+/* Wrappers on exercise_fences(). */
+static GLboolean
+test_DeleteFencesNV(generic_func func)
+{
+   (void) func;
+   return exercise_fences();
+}
+static GLboolean
+test_GenFencesNV(generic_func func)
+{
+   (void) func;
+   return exercise_fences();
+}
+static GLboolean
+test_SetFenceNV(generic_func func)
+{
+   (void) func;
+   return exercise_fences();
+}
+static GLboolean
+test_TestFenceNV(generic_func func)
+{
+   (void) func;
+   return exercise_fences();
+}
+static GLboolean
+test_FinishFenceNV(generic_func func)
+{
+   (void) func;
+   return exercise_fences();
+}
+static GLboolean
+test_GetFenceivNV(generic_func func)
+{
+   (void) func;
+   return exercise_fences();
+}
+static GLboolean
+test_IsFenceNV(generic_func func)
+{
+   (void) func;
+   return exercise_fences();
+}
+
+/* A bunch of glUniform*() tests */
+static GLboolean
+test_Uniform1iv(generic_func func)
+{
+   PFNGLUNIFORM1IVARBPROC Uniform1ivARB = (PFNGLUNIFORM1IVARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformivARB, PFNGLGETUNIFORMIVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform int uniformColor;" 
+      "void main() {gl_FragColor.r = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLint uniform[1] = {1};
+   GLint queriedUniform[1];
+
+   if (GetUniformivARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is an integer
+    * so we must set it using integer versions
+    * of the Uniform* functions.  The "1" means we're setting
+    * one vector's worth of information.
+    */
+   (*Uniform1ivARB)(uniformLocation, 1, uniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformivARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_ints(__FUNCTION__, 1, uniform, 1, queriedUniform);
+}
+
+static GLboolean
+test_Uniform1i(generic_func func)
+{
+   PFNGLUNIFORM1IARBPROC Uniform1iARB = (PFNGLUNIFORM1IARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformivARB, PFNGLGETUNIFORMIVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform int uniformColor;"
+      "void main() {gl_FragColor.r = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLint uniform[1] = {1};
+   GLint queriedUniform[4];
+
+   if (GetUniformivARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is an integer
+    * so we must set it using integer versions
+    * of the Uniform* functions.
+    */
+   (*Uniform1iARB)(uniformLocation, uniform[0]);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformivARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_ints(__FUNCTION__, 1, uniform, 1, queriedUniform);
+}
+
+static GLboolean
+test_Uniform1fv(generic_func func)
+{
+   PFNGLUNIFORM1FVARBPROC Uniform1fvARB = (PFNGLUNIFORM1FVARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformfvARB, PFNGLGETUNIFORMFVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform float uniformColor;"
+      "void main() {gl_FragColor.r = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLfloat uniform[1] = {1.1};
+   GLfloat queriedUniform[1];
+
+   if (GetUniformfvARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is a float
+    * so we must set it using float versions
+    * of the Uniform* functions.  The "1" means we're setting
+    * one vector's worth of information.
+    */
+   (*Uniform1fvARB)(uniformLocation, 1, uniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformfvARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_floats(__FUNCTION__, 1, uniform, 1, queriedUniform);
+}
+
+static GLboolean
+test_Uniform1f(generic_func func)
+{
+   PFNGLUNIFORM1FARBPROC Uniform1fARB = (PFNGLUNIFORM1FARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformfvARB, PFNGLGETUNIFORMFVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform float uniformColor;"
+      "void main() {gl_FragColor.r = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLfloat uniform[1] = {1.1};
+   GLfloat queriedUniform[1];
+
+   if (GetUniformfvARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is a float
+    * so we must set it using float versions
+    * of the Uniform* functions.
+    */
+   (*Uniform1fARB)(uniformLocation, uniform[0]);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformfvARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_floats(__FUNCTION__, 1, uniform, 1, queriedUniform);
+}
+
+static GLboolean
+test_Uniform2iv(generic_func func)
+{
+   PFNGLUNIFORM2IVARBPROC Uniform2ivARB = (PFNGLUNIFORM2IVARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformivARB, PFNGLGETUNIFORMIVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform ivec2 uniformColor;" 
+      "void main() {gl_FragColor.rg = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLint uniform[2] = {1,2};
+   GLint queriedUniform[2];
+
+   if (GetUniformivARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is an integer
+    * vector 2 (ivec2), so we must set it using integer versions
+    * of the Uniform* functions.  The "1" means we're setting
+    * one vector's worth of information.
+    */
+   (*Uniform2ivARB)(uniformLocation, 1, uniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformivARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_ints(__FUNCTION__, 2, uniform, 2, queriedUniform);
+}
+
+static GLboolean
+test_Uniform2i(generic_func func)
+{
+   PFNGLUNIFORM2IARBPROC Uniform2iARB = (PFNGLUNIFORM2IARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformivARB, PFNGLGETUNIFORMIVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform ivec2 uniformColor;"
+      "void main() {gl_FragColor.rg = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLint uniform[2] = {1,2};
+   GLint queriedUniform[4];
+
+   if (GetUniformivARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is an integer
+    * vector 2 (ivec2), so we must set it using integer versions
+    * of the Uniform* functions.
+    */
+   (*Uniform2iARB)(uniformLocation, uniform[0], uniform[1]);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformivARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_ints(__FUNCTION__, 2, uniform, 2, queriedUniform);
+}
+
+static GLboolean
+test_Uniform2fv(generic_func func)
+{
+   PFNGLUNIFORM2FVARBPROC Uniform2fvARB = (PFNGLUNIFORM2FVARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformfvARB, PFNGLGETUNIFORMFVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform vec2 uniformColor;"
+      "void main() {gl_FragColor.rg = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLfloat uniform[2] = {1.1,2.2};
+   GLfloat queriedUniform[2];
+
+   if (GetUniformfvARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is a float
+    * vector 2 (vec2), so we must set it using float versions
+    * of the Uniform* functions.  The "1" means we're setting
+    * one vector's worth of information.
+    */
+   (*Uniform2fvARB)(uniformLocation, 1, uniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformfvARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_floats(__FUNCTION__, 2, uniform, 2, queriedUniform);
+}
+
+static GLboolean
+test_Uniform2f(generic_func func)
+{
+   PFNGLUNIFORM2FARBPROC Uniform2fARB = (PFNGLUNIFORM2FARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformfvARB, PFNGLGETUNIFORMFVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform vec2 uniformColor;"
+      "void main() {gl_FragColor.rg = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLfloat uniform[2] = {1.1,2.2};
+   GLfloat queriedUniform[2];
+
+   if (GetUniformfvARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is a float
+    * vector 2 (vec2), so we must set it using float versions
+    * of the Uniform* functions.
+    */
+   (*Uniform2fARB)(uniformLocation, uniform[0], uniform[1]);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformfvARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_floats(__FUNCTION__, 2, uniform, 2, queriedUniform);
+}
+
+static GLboolean
+test_Uniform3iv(generic_func func)
+{
+   PFNGLUNIFORM3IVARBPROC Uniform3ivARB = (PFNGLUNIFORM3IVARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformivARB, PFNGLGETUNIFORMIVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform ivec3 uniformColor;" 
+      "void main() {gl_FragColor.rgb = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLint uniform[3] = {1,2,3};
+   GLint queriedUniform[3];
+
+   if (GetUniformivARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is an integer
+    * vector 3 (ivec3), so we must set it using integer versions
+    * of the Uniform* functions.  The "1" means we're setting
+    * one vector's worth of information.
+    */
+   (*Uniform3ivARB)(uniformLocation, 1, uniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformivARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_ints(__FUNCTION__, 3, uniform, 3, queriedUniform);
+}
+
+static GLboolean
+test_Uniform3i(generic_func func)
+{
+   PFNGLUNIFORM3IARBPROC Uniform3iARB = (PFNGLUNIFORM3IARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformivARB, PFNGLGETUNIFORMIVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform ivec3 uniformColor;"
+      "void main() {gl_FragColor.rgb = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLint uniform[3] = {1,2,3};
+   GLint queriedUniform[4];
+
+   if (GetUniformivARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is an integer
+    * vector 3 (ivec3), so we must set it using integer versions
+    * of the Uniform* functions.
+    */
+   (*Uniform3iARB)(uniformLocation, uniform[0], uniform[1], uniform[2]);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformivARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_ints(__FUNCTION__, 3, uniform, 3, queriedUniform);
+}
+
+static GLboolean
+test_Uniform3fv(generic_func func)
+{
+   PFNGLUNIFORM3FVARBPROC Uniform3fvARB = (PFNGLUNIFORM3FVARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformfvARB, PFNGLGETUNIFORMFVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform vec3 uniformColor;"
+      "void main() {gl_FragColor.rgb = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLfloat uniform[3] = {1.1,2.2,3.3};
+   GLfloat queriedUniform[3];
+
+   if (GetUniformfvARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is a float
+    * vector 3 (vec3), so we must set it using float versions
+    * of the Uniform* functions.  The "1" means we're setting
+    * one vector's worth of information.
+    */
+   (*Uniform3fvARB)(uniformLocation, 1, uniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformfvARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_floats(__FUNCTION__, 3, uniform, 3, queriedUniform);
+}
+
+static GLboolean
+test_Uniform3f(generic_func func)
+{
+   PFNGLUNIFORM3FARBPROC Uniform3fARB = (PFNGLUNIFORM3FARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformfvARB, PFNGLGETUNIFORMFVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform vec3 uniformColor;"
+      "void main() {gl_FragColor.rgb = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLfloat uniform[3] = {1.1,2.2,3.3};
+   GLfloat queriedUniform[3];
+
+   if (GetUniformfvARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is a float
+    * vector 3 (vec3), so we must set it using float versions
+    * of the Uniform* functions.
+    */
+   (*Uniform3fARB)(uniformLocation, uniform[0], uniform[1], uniform[2]);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformfvARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_floats(__FUNCTION__, 3, uniform, 3, queriedUniform);
+}
+
+static GLboolean
+test_Uniform4iv(generic_func func)
+{
+   PFNGLUNIFORM4IVARBPROC Uniform4ivARB = (PFNGLUNIFORM4IVARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformivARB, PFNGLGETUNIFORMIVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform ivec4 uniformColor; void main() {gl_FragColor = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLint uniform[4] = {1,2,3,4};
+   GLint queriedUniform[4];
+
+   if (GetUniformivARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is an integer
+    * vector (ivec4), so we must set it using integer versions
+    * of the Uniform* functions.  The "1" means we're setting
+    * one vector's worth of information.
+    */
+   (*Uniform4ivARB)(uniformLocation, 1, uniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformivARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_ints(__FUNCTION__, 4, uniform, 4, queriedUniform);
+}
+
+static GLboolean
+test_Uniform4i(generic_func func)
+{
+   PFNGLUNIFORM4IARBPROC Uniform4iARB = (PFNGLUNIFORM4IARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformivARB, PFNGLGETUNIFORMIVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform ivec4 uniformColor; void main() {gl_FragColor = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLint uniform[4] = {1,2,3,4};
+   GLint queriedUniform[4];
+
+   if (GetUniformivARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is an integer
+    * vector (ivec4), so we must set it using integer versions
+    * of the Uniform* functions.
+    */
+   (*Uniform4iARB)(uniformLocation, uniform[0], uniform[1], uniform[2],
+      uniform[3]);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformivARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_ints(__FUNCTION__, 4, uniform, 4, queriedUniform);
+}
+
+static GLboolean
+test_Uniform4fv(generic_func func)
+{
+   PFNGLUNIFORM4FVARBPROC Uniform4fvARB = (PFNGLUNIFORM4FVARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformfvARB, PFNGLGETUNIFORMFVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform vec4 uniformColor; void main() {gl_FragColor = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLfloat uniform[4] = {1.1,2.2,3.3,4.4};
+   GLfloat queriedUniform[4];
+
+   if (GetUniformfvARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is a float
+    * vector (vec4), so we must set it using float versions
+    * of the Uniform* functions.  The "1" means we're setting
+    * one vector's worth of information.
+    */
+   (*Uniform4fvARB)(uniformLocation, 1, uniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformfvARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_floats(__FUNCTION__, 4, uniform, 4, queriedUniform);
+}
+
+static GLboolean
+test_Uniform4f(generic_func func)
+{
+   PFNGLUNIFORM4FARBPROC Uniform4fARB = (PFNGLUNIFORM4FARBPROC) func;
+   DECLARE_GLFUNC_PTR(GetUniformfvARB, PFNGLGETUNIFORMFVARBPROC);
+
+   /* This is a trivial fragment shader that sets the color of the
+    * fragment to the uniform value passed in.
+    */
+   static const char *fragmentShaderText = 
+      "uniform vec4 uniformColor; void main() {gl_FragColor = uniformColor;}";
+   static const char *uniformName = "uniformColor";
+
+   GLhandleARB program;
+   GLint uniformLocation;
+   const GLfloat uniform[4] = {1.1,2.2,3.3,4.4};
+   GLfloat queriedUniform[4];
+
+   if (GetUniformfvARB == NULL) {
+      return GL_FALSE;
+   }
+
+   /* Call a helper function to compile up the shader and give
+    * us back the validated program and uniform location.
+    * If it fails, something's wrong and we can't continue.
+    */
+   if (!exercise_uniform_start(fragmentShaderText, uniformName, 
+      &program, &uniformLocation)) {
+      return GL_FALSE;
+   }
+
+   /* Set the value of the program uniform.  Note that you must
+    * use a compatible type.  Our uniform above is an integer
+    * vector (ivec4), so we must set it using integer versions
+    * of the Uniform* functions.
+    */
+   (*Uniform4fARB)(uniformLocation, uniform[0], uniform[1], uniform[2],
+      uniform[3]);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Query it back */
+   (*GetUniformfvARB)(program, uniformLocation, queriedUniform);
+   CheckGLError(__LINE__, __FILE__, __FUNCTION__);
+
+   /* Clean up before we check to see whether it came back unscathed */
+   exercise_uniform_end(program);
+
+   /* Now check to see whether the uniform came back as expected.  This
+    * will return GL_TRUE if all is well, or GL_FALSE if the comparison failed.
+    */
+   return compare_floats(__FUNCTION__, 4, uniform, 4, queriedUniform);
+}
 
 static GLboolean
 test_ActiveTextureARB(generic_func func)
@@ -107,6 +2694,40 @@ test_VertexAttrib1fvARB(generic_func func)
 }
 
 static GLboolean
+test_VertexAttrib1dvARB(generic_func func)
+{
+   PFNGLVERTEXATTRIB1DVARBPROC vertexAttrib1dvARB = (PFNGLVERTEXATTRIB1DVARBPROC) func;
+   PFNGLGETVERTEXATTRIBDVARBPROC getVertexAttribdvARB = (PFNGLGETVERTEXATTRIBDVARBPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribdvARB");
+
+   const GLdouble v[1] = {25.0};
+   const GLdouble def[1] = {0};
+   GLdouble res[4];
+   GLboolean pass;
+   (*vertexAttrib1dvARB)(6, v);
+   (*getVertexAttribdvARB)(6, GL_CURRENT_VERTEX_ATTRIB_ARB, res);
+   pass = (res[0] == 25.0 && res[1] == 0.0 && res[2] == 0.0 && res[3] == 1.0);
+   (*vertexAttrib1dvARB)(6, def);
+   return pass;
+}
+
+static GLboolean
+test_VertexAttrib1svARB(generic_func func)
+{
+   PFNGLVERTEXATTRIB1SVARBPROC vertexAttrib1svARB = (PFNGLVERTEXATTRIB1SVARBPROC) func;
+   PFNGLGETVERTEXATTRIBIVARBPROC getVertexAttribivARB = (PFNGLGETVERTEXATTRIBIVARBPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribivARB");
+
+   const GLshort v[1] = {25.0};
+   const GLshort def[1] = {0};
+   GLint res[4];
+   GLboolean pass;
+   (*vertexAttrib1svARB)(6, v);
+   (*getVertexAttribivARB)(6, GL_CURRENT_VERTEX_ATTRIB_ARB, res);
+   pass = (res[0] == 25 && res[1] == 0 && res[2] == 0 && res[3] == 1);
+   (*vertexAttrib1svARB)(6, def);
+   return pass;
+}
+
+static GLboolean
 test_VertexAttrib4NubvARB(generic_func func)
 {
    PFNGLVERTEXATTRIB4NUBVARBPROC vertexAttrib4NubvARB = (PFNGLVERTEXATTRIB4NUBVARBPROC) func;
@@ -177,7 +2798,6 @@ test_VertexAttrib4NsvARB(generic_func func)
    return pass;
 }
 
-
 static GLboolean
 test_VertexAttrib4NusvARB(generic_func func)
 {
@@ -195,42 +2815,110 @@ test_VertexAttrib4NusvARB(generic_func func)
    return pass;
 }
 
+static GLboolean
+test_VertexAttrib1sNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB1SNVPROC vertexAttrib1sNV = (PFNGLVERTEXATTRIB1SNVPROC) func;
+   PFNGLGETVERTEXATTRIBIVNVPROC getVertexAttribivNV = (PFNGLGETVERTEXATTRIBIVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribivNV");
+
+   const GLshort v[4] = {2, 0, 0, 1};
+   const GLshort def[4] = {0, 0, 0, 1};
+   GLint res[4];
+   (*vertexAttrib1sNV)(6, v[0]);
+   (*getVertexAttribivNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib1sNV)(6, def[0]);
+   return compare_shorts_to_ints(__FUNCTION__, 4, v, 4, res);
+}
 
 static GLboolean
-test_VertexAttrib4ubNV(generic_func func)
+test_VertexAttrib1fNV(generic_func func)
 {
-   PFNGLVERTEXATTRIB4UBNVPROC vertexAttrib4ubNV = (PFNGLVERTEXATTRIB4UBNVPROC) func;
+   PFNGLVERTEXATTRIB1FNVPROC vertexAttrib1fNV = (PFNGLVERTEXATTRIB1FNVPROC) func;
    PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
 
-   const GLubyte v[4] = {255, 0, 255, 0};
-   const GLubyte def[4] = {0, 0, 0, 255};
+   const GLfloat v[4] = {2.5, 0.0, 0.0, 1.0};
+   const GLfloat def[4] = {0, 0, 0, 1};
    GLfloat res[4];
-   GLboolean pass;
-   (*vertexAttrib4ubNV)(6, v[0], v[1], v[2], v[3]);
+   (*vertexAttrib1fNV)(6, v[0]);
    (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
-   pass = (res[0] == 1.0 && res[1] == 0.0 && res[2] == 1.0 && res[3] == 0.0);
-   (*vertexAttrib4ubNV)(6, def[0], def[1], def[2], def[3]);
-   return pass;
+   (*vertexAttrib1fNV)(6, def[0]);
+   return compare_floats(__FUNCTION__, 4, v, 4, res);
 }
 
+static GLboolean
+test_VertexAttrib1dNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB1DNVPROC vertexAttrib1dNV = (PFNGLVERTEXATTRIB1DNVPROC) func;
+   PFNGLGETVERTEXATTRIBDVNVPROC getVertexAttribdvNV = (PFNGLGETVERTEXATTRIBDVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribdvNV");
+
+   const GLdouble v[4] = {2.5, 0.0, 0.0, 1.0};
+   const GLdouble def[4] = {0, 0, 0, 1};
+   GLdouble res[4];
+   (*vertexAttrib1dNV)(6, v[0]);
+   (*getVertexAttribdvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib1dNV)(6, def[0]);
+   return compare_doubles(__FUNCTION__, 4, v, 4, res);
+}
 
 static GLboolean
 test_VertexAttrib2sNV(generic_func func)
 {
    PFNGLVERTEXATTRIB2SNVPROC vertexAttrib2sNV = (PFNGLVERTEXATTRIB2SNVPROC) func;
+   PFNGLGETVERTEXATTRIBIVNVPROC getVertexAttribivNV = (PFNGLGETVERTEXATTRIBIVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribivNV");
+
+   const GLshort v[4] = {2, 4, 0, 1};
+   const GLshort def[4] = {0, 0, 0, 1};
+   GLint res[4];
+   (*vertexAttrib2sNV)(6, v[0], v[1]);
+   (*getVertexAttribivNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib2sNV)(6, def[0], def[1]);
+   return compare_shorts_to_ints(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib2fNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB2FNVPROC vertexAttrib2fNV = (PFNGLVERTEXATTRIB2FNVPROC) func;
    PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
 
-   const GLshort v[2] = {2, -4,};
-   const GLshort def[2] = {0, 0};
+   const GLfloat v[4] = {2.5, 4.25, 0.0, 1.0};
+   const GLfloat def[4] = {0, 0, 0, 1};
    GLfloat res[4];
-   GLboolean pass;
-   (*vertexAttrib2sNV)(6, v[0], v[1]);
+   (*vertexAttrib2fNV)(6, v[0], v[1]);
    (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
-   pass = (EQUAL(res[0], 2) && EQUAL(res[1], -4) && EQUAL(res[2], 0) && res[3] == 1.0);
-   (*vertexAttrib2sNV)(6, def[0], def[1]);
-   return pass;
+   (*vertexAttrib2fNV)(6, def[0], def[1]);
+   return compare_floats(__FUNCTION__, 4, v, 4, res);
 }
 
+static GLboolean
+test_VertexAttrib2dNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB2DNVPROC vertexAttrib2dNV = (PFNGLVERTEXATTRIB2DNVPROC) func;
+   PFNGLGETVERTEXATTRIBDVNVPROC getVertexAttribdvNV = (PFNGLGETVERTEXATTRIBDVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribdvNV");
+
+   const GLdouble v[4] = {2.5, 4.25, 0.0, 1.0};
+   const GLdouble def[4] = {0, 0, 0, 1};
+   GLdouble res[4];
+   (*vertexAttrib2dNV)(6, v[0], v[1]);
+   (*getVertexAttribdvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib2dNV)(6, def[0], def[1]);
+   return compare_doubles(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib3sNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB3SNVPROC vertexAttrib3sNV = (PFNGLVERTEXATTRIB3SNVPROC) func;
+   PFNGLGETVERTEXATTRIBIVNVPROC getVertexAttribivNV = (PFNGLGETVERTEXATTRIBIVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribivNV");
+
+   const GLshort v[4] = {2, 4, 7, 1};
+   const GLshort def[4] = {0, 0, 0, 1};
+   GLint res[4];
+   (*vertexAttrib3sNV)(6, v[0], v[1], v[2]);
+   (*getVertexAttribivNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib3sNV)(6, def[0], def[1], def[2]);
+   return compare_shorts_to_ints(__FUNCTION__, 4, v, 4, res);
+}
 
 static GLboolean
 test_VertexAttrib3fNV(generic_func func)
@@ -238,35 +2926,467 @@ test_VertexAttrib3fNV(generic_func func)
    PFNGLVERTEXATTRIB3FNVPROC vertexAttrib3fNV = (PFNGLVERTEXATTRIB3FNVPROC) func;
    PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
 
-   const GLfloat v[3] = {0.2, 0.4, 0.8};
-   const GLfloat def[3] = {0, 0, 0};
+   const GLfloat v[4] = {2.5, 4.25, 7.125, 1.0};
+   const GLfloat def[4] = {0, 0, 0, 1};
    GLfloat res[4];
-   GLboolean pass;
    (*vertexAttrib3fNV)(6, v[0], v[1], v[2]);
    (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
-   pass = (EQUAL(res[0], 0.2) && EQUAL(res[1], 0.4) && EQUAL(res[2], 0.8) && res[3] == 1.0);
    (*vertexAttrib3fNV)(6, def[0], def[1], def[2]);
-   return pass;
+   return compare_floats(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib3dNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB3DNVPROC vertexAttrib3dNV = (PFNGLVERTEXATTRIB3DNVPROC) func;
+   PFNGLGETVERTEXATTRIBDVNVPROC getVertexAttribdvNV = (PFNGLGETVERTEXATTRIBDVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribdvNV");
+
+   const GLdouble v[4] = {2.5, 4.25, 7.125, 1.0};
+   const GLdouble def[4] = {0, 0, 0, 1};
+   GLdouble res[4];
+   (*vertexAttrib3dNV)(6, v[0], v[1], v[2]);
+   (*getVertexAttribdvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib3dNV)(6, def[0], def[1], def[2]);
+   return compare_doubles(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib4sNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB4SNVPROC vertexAttrib4sNV = (PFNGLVERTEXATTRIB4SNVPROC) func;
+   PFNGLGETVERTEXATTRIBIVNVPROC getVertexAttribivNV = (PFNGLGETVERTEXATTRIBIVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribivNV");
+
+   const GLshort v[4] = {2, 4, 7, 5};
+   const GLshort def[4] = {0, 0, 0, 1};
+   GLint res[4];
+   (*vertexAttrib4sNV)(6, v[0], v[1], v[2], v[3]);
+   (*getVertexAttribivNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib4sNV)(6, def[0], def[1], def[2], def[3]);
+   return compare_shorts_to_ints(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib4fNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB4FNVPROC vertexAttrib4fNV = (PFNGLVERTEXATTRIB4FNVPROC) func;
+   PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
+
+   const GLfloat v[4] = {2.5, 4.25, 7.125, 5.0625};
+   const GLfloat def[4] = {0, 0, 0, 1};
+   GLfloat res[4];
+   (*vertexAttrib4fNV)(6, v[0], v[1], v[2], v[3]);
+   (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib4fNV)(6, def[0], def[1], def[2], def[3]);
+   return compare_floats(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib4dNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB4DNVPROC vertexAttrib4dNV = (PFNGLVERTEXATTRIB4DNVPROC) func;
+   PFNGLGETVERTEXATTRIBDVNVPROC getVertexAttribdvNV = (PFNGLGETVERTEXATTRIBDVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribdvNV");
+
+   const GLdouble v[4] = {2.5, 4.25, 7.125, 5.0625};
+   const GLdouble def[4] = {0, 0, 0, 1};
+   GLdouble res[4];
+   (*vertexAttrib4dNV)(6, v[0], v[1], v[2], v[3]);
+   (*getVertexAttribdvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib4dNV)(6, def[0], def[1], def[2], def[3]);
+   return compare_doubles(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib4ubNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB4UBNVPROC vertexAttrib4ubNV = (PFNGLVERTEXATTRIB4UBNVPROC) func;
+   PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
+
+   const GLubyte v[4] = {255, 0, 255, 0};
+   const GLubyte def[4] = {0, 0, 0, 255};
+   GLfloat res[4];
+   /* There's no byte-value query; so we use the float-value query.
+    * Bytes are interpreted as steps between 0 and 1, so the
+    * expected float values will be 0.0 for byte value 0 and 1.0 for
+    * byte value 255.
+    */
+   GLfloat expectedResults[4] = {1.0, 0.0, 1.0, 0.0};
+   (*vertexAttrib4ubNV)(6, v[0], v[1], v[2], v[3]);
+   (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib4ubNV)(6, def[0], def[1], def[2], def[3]);
+   return compare_floats(__FUNCTION__, 4, expectedResults, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib1fvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB1FVNVPROC vertexAttrib1fvNV = (PFNGLVERTEXATTRIB1FVNVPROC) func;
+   PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
+
+   const GLfloat v[4] = {2.5, 0.0, 0.0, 1.0};
+   const GLfloat def[4] = {0, 0, 0, 1};
+   GLfloat res[4];
+   (*vertexAttrib1fvNV)(6, v);
+   (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib1fvNV)(6, def);
+   return compare_floats(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib1dvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB1DVNVPROC vertexAttrib1dvNV = (PFNGLVERTEXATTRIB1DVNVPROC) func;
+   PFNGLGETVERTEXATTRIBDVNVPROC getVertexAttribdvNV = (PFNGLGETVERTEXATTRIBDVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribdvNV");
+
+   const GLdouble v[4] = {2.5, 0.0, 0.0, 1.0};
+   const GLdouble def[4] = {0, 0, 0, 1};
+   GLdouble res[4];
+   (*vertexAttrib1dvNV)(6, v);
+   (*getVertexAttribdvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib1dvNV)(6, def);
+   return compare_doubles(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib2svNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB2SVNVPROC vertexAttrib2svNV = (PFNGLVERTEXATTRIB2SVNVPROC) func;
+   PFNGLGETVERTEXATTRIBIVNVPROC getVertexAttribivNV = (PFNGLGETVERTEXATTRIBIVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribivNV");
+
+   const GLshort v[4] = {2, 4, 0, 1};
+   const GLshort def[4] = {0, 0, 0, 1};
+   GLint res[4];
+   (*vertexAttrib2svNV)(6, v);
+   (*getVertexAttribivNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib2svNV)(6, def);
+   return compare_shorts_to_ints(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib2fvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB2FVNVPROC vertexAttrib2fvNV = (PFNGLVERTEXATTRIB2FVNVPROC) func;
+   PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
+
+   const GLfloat v[4] = {2.5, 4.25, 0.0, 1.0};
+   const GLfloat def[4] = {0, 0, 0, 1};
+   GLfloat res[4];
+   (*vertexAttrib2fvNV)(6, v);
+   (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib2fvNV)(6, def);
+   return compare_floats(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib2dvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB2DVNVPROC vertexAttrib2dvNV = (PFNGLVERTEXATTRIB2DVNVPROC) func;
+   PFNGLGETVERTEXATTRIBDVNVPROC getVertexAttribdvNV = (PFNGLGETVERTEXATTRIBDVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribdvNV");
+
+   const GLdouble v[4] = {2.5, 4.25, 0.0, 1.0};
+   const GLdouble def[4] = {0, 0, 0, 1};
+   GLdouble res[4];
+   (*vertexAttrib2dvNV)(6, v);
+   (*getVertexAttribdvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib2dvNV)(6, def);
+   return compare_doubles(__FUNCTION__, 4, v, 4, res);
 }
 
+static GLboolean
+test_VertexAttrib3svNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB3SVNVPROC vertexAttrib3svNV = (PFNGLVERTEXATTRIB3SVNVPROC) func;
+   PFNGLGETVERTEXATTRIBIVNVPROC getVertexAttribivNV = (PFNGLGETVERTEXATTRIBIVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribivNV");
+
+   const GLshort v[4] = {2, 4, 7, 1};
+   const GLshort def[4] = {0, 0, 0, 1};
+   GLint res[4];
+   (*vertexAttrib3svNV)(6, v);
+   (*getVertexAttribivNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib3svNV)(6, def);
+   return compare_shorts_to_ints(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib3fvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB3FVNVPROC vertexAttrib3fvNV = (PFNGLVERTEXATTRIB3FVNVPROC) func;
+   PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
+
+   const GLfloat v[4] = {2.5, 4.25, 7.125, 1.0};
+   const GLfloat def[4] = {0, 0, 0, 1};
+   GLfloat res[4];
+   (*vertexAttrib3fvNV)(6, v);
+   (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib3fvNV)(6, def);
+   return compare_floats(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib3dvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB3DVNVPROC vertexAttrib3dvNV = (PFNGLVERTEXATTRIB3DVNVPROC) func;
+   PFNGLGETVERTEXATTRIBDVNVPROC getVertexAttribdvNV = (PFNGLGETVERTEXATTRIBDVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribdvNV");
+
+   const GLdouble v[4] = {2.5, 4.25, 7.125, 1.0};
+   const GLdouble def[4] = {0, 0, 0, 1};
+   GLdouble res[4];
+   (*vertexAttrib3dvNV)(6, v);
+   (*getVertexAttribdvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib3dvNV)(6, def);
+   return compare_doubles(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib4svNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB4SVNVPROC vertexAttrib4svNV = (PFNGLVERTEXATTRIB4SVNVPROC) func;
+   PFNGLGETVERTEXATTRIBIVNVPROC getVertexAttribivNV = (PFNGLGETVERTEXATTRIBIVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribivNV");
+
+   const GLshort v[4] = {2, 4, 7, 5};
+   const GLshort def[4] = {0, 0, 0, 1};
+   GLint res[4];
+   (*vertexAttrib4svNV)(6, v);
+   (*getVertexAttribivNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib4svNV)(6, def);
+   return compare_shorts_to_ints(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib4fvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB4FVNVPROC vertexAttrib4fvNV = (PFNGLVERTEXATTRIB4FVNVPROC) func;
+   PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
+
+   const GLfloat v[4] = {2.5, 4.25, 7.125, 5.0625};
+   const GLfloat def[4] = {0, 0, 0, 1};
+   GLfloat res[4];
+   (*vertexAttrib4fvNV)(6, v);
+   (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib4fvNV)(6, def);
+   return compare_floats(__FUNCTION__, 4, v, 4, res);
+}
 
 static GLboolean
 test_VertexAttrib4dvNV(generic_func func)
 {
    PFNGLVERTEXATTRIB4DVNVPROC vertexAttrib4dvNV = (PFNGLVERTEXATTRIB4DVNVPROC) func;
+   PFNGLGETVERTEXATTRIBDVNVPROC getVertexAttribdvNV = (PFNGLGETVERTEXATTRIBDVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribdvNV");
+
+   const GLdouble v[4] = {2.5, 4.25, 7.125, 5.0625};
+   const GLdouble def[4] = {0, 0, 0, 1};
+   GLdouble res[4];
+   (*vertexAttrib4dvNV)(6, v);
+   (*getVertexAttribdvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib4dvNV)(6, def);
+   return compare_doubles(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttrib4ubvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIB4UBVNVPROC vertexAttrib4ubvNV = (PFNGLVERTEXATTRIB4UBVNVPROC) func;
+   PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
+
+   const GLubyte v[4] = {255, 0, 255, 0};
+   const GLubyte def[4] = {0, 0, 0, 255};
+   GLfloat res[4];
+   /* There's no byte-value query; so we use the float-value query.
+    * Bytes are interpreted as steps between 0 and 1, so the
+    * expected float values will be 0.0 for byte value 0 and 1.0 for
+    * byte value 255.
+    */
+   GLfloat expectedResults[4] = {1.0, 0.0, 1.0, 0.0};
+   (*vertexAttrib4ubvNV)(6, v);
+   (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttrib4ubvNV)(6, def);
+   return compare_floats(__FUNCTION__, 4, expectedResults, 4, res);
+}
+
+static GLboolean
+test_VertexAttribs1fvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIBS1FVNVPROC vertexAttribs1fvNV = (PFNGLVERTEXATTRIBS1FVNVPROC) func;
    PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
 
-   const GLdouble v[4] = {0.2, 0.4, 0.8, 1.2};
+   const GLfloat v[4] = {2.5, 0.0, 0.0, 1.0};
+   const GLfloat def[4] = {0, 0, 0, 1};
+   GLfloat res[4];
+   (*vertexAttribs1fvNV)(6, 1, v);
+   (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttribs1fvNV)(6, 1, def);
+   return compare_floats(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttribs1dvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIBS1DVNVPROC vertexAttribs1dvNV = (PFNGLVERTEXATTRIBS1DVNVPROC) func;
+   PFNGLGETVERTEXATTRIBDVNVPROC getVertexAttribdvNV = (PFNGLGETVERTEXATTRIBDVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribdvNV");
+
+   const GLdouble v[4] = {2.5, 0.0, 0.0, 1.0};
    const GLdouble def[4] = {0, 0, 0, 1};
+   GLdouble res[4];
+   (*vertexAttribs1dvNV)(6, 1, v);
+   (*getVertexAttribdvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttribs1dvNV)(6, 1, def);
+   return compare_doubles(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttribs2svNV(generic_func func)
+{
+   PFNGLVERTEXATTRIBS2SVNVPROC vertexAttribs2svNV = (PFNGLVERTEXATTRIBS2SVNVPROC) func;
+   PFNGLGETVERTEXATTRIBIVNVPROC getVertexAttribivNV = (PFNGLGETVERTEXATTRIBIVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribivNV");
+
+   const GLshort v[4] = {2, 4, 0, 1};
+   const GLshort def[4] = {0, 0, 0, 1};
+   GLint res[4];
+   (*vertexAttribs2svNV)(6, 1, v);
+   (*getVertexAttribivNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttribs2svNV)(6, 1, def);
+   return compare_shorts_to_ints(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttribs2fvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIBS2FVNVPROC vertexAttribs2fvNV = (PFNGLVERTEXATTRIBS2FVNVPROC) func;
+   PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
+
+   const GLfloat v[4] = {2.5, 4.25, 0.0, 1.0};
+   const GLfloat def[4] = {0, 0, 0, 1};
    GLfloat res[4];
-   GLboolean pass;
-   (*vertexAttrib4dvNV)(6, v);
+   (*vertexAttribs2fvNV)(6, 1, v);
    (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
-   pass = (EQUAL(res[0], 0.2) && EQUAL(res[1], 0.4) && EQUAL(res[2], 0.8) && EQUAL(res[3], 1.2));
-   (*vertexAttrib4dvNV)(6, def);
-   return pass;
+   (*vertexAttribs2fvNV)(6, 1, def);
+   return compare_floats(__FUNCTION__, 4, v, 4, res);
 }
 
+static GLboolean
+test_VertexAttribs2dvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIBS2DVNVPROC vertexAttribs2dvNV = (PFNGLVERTEXATTRIBS2DVNVPROC) func;
+   PFNGLGETVERTEXATTRIBDVNVPROC getVertexAttribdvNV = (PFNGLGETVERTEXATTRIBDVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribdvNV");
+
+   const GLdouble v[4] = {2.5, 4.25, 0.0, 1.0};
+   const GLdouble def[4] = {0, 0, 0, 1};
+   GLdouble res[4];
+   (*vertexAttribs2dvNV)(6, 1, v);
+   (*getVertexAttribdvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttribs2dvNV)(6, 1, def);
+   return compare_doubles(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttribs3svNV(generic_func func)
+{
+   PFNGLVERTEXATTRIBS3SVNVPROC vertexAttribs3svNV = (PFNGLVERTEXATTRIBS3SVNVPROC) func;
+   PFNGLGETVERTEXATTRIBIVNVPROC getVertexAttribivNV = (PFNGLGETVERTEXATTRIBIVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribivNV");
+
+   const GLshort v[4] = {2, 4, 7, 1};
+   const GLshort def[4] = {0, 0, 0, 1};
+   GLint res[4];
+   (*vertexAttribs3svNV)(6, 1, v);
+   (*getVertexAttribivNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttribs3svNV)(6, 1, def);
+   return compare_shorts_to_ints(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttribs3fvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIBS3FVNVPROC vertexAttribs3fvNV = (PFNGLVERTEXATTRIBS3FVNVPROC) func;
+   PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
+
+   const GLfloat v[4] = {2.5, 4.25, 7.125, 1.0};
+   const GLfloat def[4] = {0, 0, 0, 1};
+   GLfloat res[4];
+   (*vertexAttribs3fvNV)(6, 1, v);
+   (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttribs3fvNV)(6, 1, def);
+   return compare_floats(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttribs3dvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIBS3DVNVPROC vertexAttribs3dvNV = (PFNGLVERTEXATTRIBS3DVNVPROC) func;
+   PFNGLGETVERTEXATTRIBDVNVPROC getVertexAttribdvNV = (PFNGLGETVERTEXATTRIBDVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribdvNV");
+
+   const GLdouble v[4] = {2.5, 4.25, 7.125, 1.0};
+   const GLdouble def[4] = {0, 0, 0, 1};
+   GLdouble res[4];
+   (*vertexAttribs3dvNV)(6, 1, v);
+   (*getVertexAttribdvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttribs3dvNV)(6, 1, def);
+   return compare_doubles(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttribs4svNV(generic_func func)
+{
+   PFNGLVERTEXATTRIBS4SVNVPROC vertexAttribs4svNV = (PFNGLVERTEXATTRIBS4SVNVPROC) func;
+   PFNGLGETVERTEXATTRIBIVNVPROC getVertexAttribivNV = (PFNGLGETVERTEXATTRIBIVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribivNV");
+
+   const GLshort v[4] = {2, 4, 7, 5};
+   const GLshort def[4] = {0, 0, 0, 1};
+   GLint res[4];
+   (*vertexAttribs4svNV)(6, 1, v);
+   (*getVertexAttribivNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttribs4svNV)(6, 1, def);
+   return compare_shorts_to_ints(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttribs4fvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIBS4FVNVPROC vertexAttribs4fvNV = (PFNGLVERTEXATTRIBS4FVNVPROC) func;
+   PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
+
+   const GLfloat v[4] = {2.5, 4.25, 7.125, 5.0625};
+   const GLfloat def[4] = {0, 0, 0, 1};
+   GLfloat res[4];
+   (*vertexAttribs4fvNV)(6, 1, v);
+   (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttribs4fvNV)(6, 1, def);
+   return compare_floats(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttribs4dvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIBS4DVNVPROC vertexAttribs4dvNV = (PFNGLVERTEXATTRIBS4DVNVPROC) func;
+   PFNGLGETVERTEXATTRIBDVNVPROC getVertexAttribdvNV = (PFNGLGETVERTEXATTRIBDVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribdvNV");
+
+   const GLdouble v[4] = {2.5, 4.25, 7.125, 5.0625};
+   const GLdouble def[4] = {0, 0, 0, 1};
+   GLdouble res[4];
+   (*vertexAttribs4dvNV)(6, 1, v);
+   (*getVertexAttribdvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttribs4dvNV)(6, 1, def);
+   return compare_doubles(__FUNCTION__, 4, v, 4, res);
+}
+
+static GLboolean
+test_VertexAttribs4ubvNV(generic_func func)
+{
+   PFNGLVERTEXATTRIBS4UBVNVPROC vertexAttribs4ubvNV = (PFNGLVERTEXATTRIBS4UBVNVPROC) func;
+   PFNGLGETVERTEXATTRIBFVNVPROC getVertexAttribfvNV = (PFNGLGETVERTEXATTRIBFVNVPROC) glXGetProcAddressARB((const GLubyte *) "glGetVertexAttribfvNV");
+
+   const GLubyte v[4] = {255, 0, 255, 0};
+   const GLubyte def[4] = {0, 0, 0, 255};
+   GLfloat res[4];
+   /* There's no byte-value query; so we use the float-value query.
+    * Bytes are interpreted as steps between 0 and 1, so the
+    * expected float values will be 0.0 for byte value 0 and 1.0 for
+    * byte value 255.
+    */
+   GLfloat expectedResults[4] = {1.0, 0.0, 1.0, 0.0};
+   (*vertexAttribs4ubvNV)(6, 1, v);
+   (*getVertexAttribfvNV)(6, GL_CURRENT_ATTRIB_NV, res);
+   (*vertexAttribs4ubvNV)(6, 1, def);
+   return compare_floats(__FUNCTION__, 4, expectedResults, 4, res);
+}
 
 static GLboolean
 test_StencilFuncSeparateATI(generic_func func)
@@ -387,17 +3507,32 @@ extension_supported(const char *haystack, const char *needle)
 }
 
 
-static void
+/* Run all the known extension function tests, if the extension is supported.
+ * Return a count of how many failed.
+ */
+static int
 check_functions( const char *extensions )
 {
    struct name_test_pair *entry;
-   int failures = 0, passes = 0;
-   int totalFail = 0, totalPass = 0;
+   int failures = 0, passes = 0, untested = 0;
+   int totalFail = 0, totalPass = 0, totalUntested = 0, totalUnsupported = 0;
    int doTests;
+   const char *version = (const char *) glGetString(GL_VERSION);
 
+   /* The functions list will have "real" entries (consisting of
+    * a GL function name and a pointer to an exercise function for
+    * that GL function), and "group" entries (indicated as
+    * such by having a "-" as the first character of the name).
+    * "Group" names always start with the "-" character, and can
+    * be numeric (e.g. "-1.0", "-2.1"), indicating that a particular
+    * OpenGL version is required for the following functions; or can be
+    * an extension name (e.g. "-GL_ARB_multitexture") that means
+    * that the named extension is required for the following functions.
+    */
    for (entry = functions; entry->name; entry++) {
+      /* Check if this is a group indicator */
       if (entry->name[0] == '-') {
-         const char *version = (const char *) glGetString(GL_VERSION);
+         /* A group indicator; check if it's an OpenGL version group */
          if (entry->name[1] == '1') {
             /* check GL version 1.x */
             if (version[0] == '1' &&
@@ -419,14 +3554,27 @@ check_functions( const char *extensions )
             /* check if the named extension is available */
             doTests = extension_supported(extensions, entry->name+1);
          }
+
+         /* doTests is now set if we're starting an OpenGL version
+          * group, and the running OpenGL version is at least the
+          * version required; or if we're starting an OpenGL extension
+          * group, and the extension is supported.
+          */
          if (doTests)
             printf("Testing %s functions\n", entry->name + 1);
-         totalFail += failures;
-         totalPass += passes;
+
+         /* Each time we hit a title function, reset the function
+          * counts.
+          */
          failures = 0;
          passes = 0;
+         untested = 0;
       }
       else if (doTests) {
+         /* Here, we know we're trying to exercise a function for
+          * a supported extension.  See whether we have a test for
+          * it, and try to run it.
+          */
          generic_func funcPtr = (generic_func) glXGetProcAddressARB((const GLubyte *) entry->name);
          if (funcPtr) {
             if (entry->test) {
@@ -436,21 +3584,36 @@ check_functions( const char *extensions )
                if (b) {
                   printf(" Pass\n");
                   passes++;
+                  totalPass++;
                }
                else {
                   printf(" FAIL!!!\n");
                   failures++;
+                  totalFail++;
                }
             }
             else {
-               passes++;
+               untested++;
+               totalUntested++;
             }
          }
          else {
             printf("   glXGetProcAddress(%s) failed!\n", entry->name);
             failures++;
+            totalFail++;
          }
       }
+      else {
+         /* Here, we have a function that belongs to a group that
+          * is known to be unsupported.
+          */
+         totalUnsupported++;
+      }
+
+      /* Make sure a poor test case doesn't leave any lingering
+       * OpenGL errors.
+       */
+      CheckGLError(__LINE__, __FILE__, __FUNCTION__);
 
       if (doTests && (!(entry+1)->name || (entry+1)->name[0] == '-')) {
          if (failures > 0) {
@@ -459,18 +3622,29 @@ check_functions( const char *extensions )
          if (passes > 0) {
             printf("   %d passed.\n", passes);
          }
+         if (untested > 0) {
+            printf("   %d untested.\n", untested);
+         }
       }
    }
-   totalFail += failures;
-   totalPass += passes;
 
    printf("-----------------------------\n");
-   printf("Total: %d pass  %d fail\n", totalPass, totalFail);
+   printf("Total: %d pass  %d fail  %d untested  %d unsupported  %d total\n", 
+      totalPass, totalFail, totalUntested, totalUnsupported,
+      totalPass + totalFail + totalUntested + totalUnsupported);
+
+   return totalFail;
 }
 
 
+/* Return an error code */
+#define ERROR_NONE 0
+#define ERROR_NO_VISUAL 1
+#define ERROR_NO_CONTEXT 2
+#define ERROR_NO_MAKECURRENT 3
+#define ERROR_FAILED 4
 
-static void
+static int
 print_screen_info(Display *dpy, int scrnum, Bool allowDirect)
 {
    Window win;
@@ -496,6 +3670,7 @@ print_screen_info(Display *dpy, int scrnum, Bool allowDirect)
    GLXContext ctx;
    XVisualInfo *visinfo;
    int width = 100, height = 100;
+   int failures;
 
    root = RootWindow(dpy, scrnum);
 
@@ -504,7 +3679,7 @@ print_screen_info(Display *dpy, int scrnum, Bool allowDirect)
       visinfo = glXChooseVisual(dpy, scrnum, attribDouble);
       if (!visinfo) {
          fprintf(stderr, "Error: couldn't find RGB GLX visual\n");
-         return;
+         return ERROR_NO_VISUAL;
       }
    }
 
@@ -521,26 +3696,29 @@ print_screen_info(Display *dpy, int scrnum, Bool allowDirect)
    if (!ctx) {
       fprintf(stderr, "Error: glXCreateContext failed\n");
       XDestroyWindow(dpy, win);
-      return;
+      return ERROR_NO_CONTEXT;
    }
 
-   if (glXMakeCurrent(dpy, win, ctx)) {
-      check_functions( (const char *) glGetString(GL_EXTENSIONS) );
-   }
-   else {
+   if (!glXMakeCurrent(dpy, win, ctx)) {
       fprintf(stderr, "Error: glXMakeCurrent failed\n");
+      glXDestroyContext(dpy, ctx);
+      XDestroyWindow(dpy, win);
+      return ERROR_NO_MAKECURRENT;
    }
 
+   failures = check_functions( (const char *) glGetString(GL_EXTENSIONS) );
    glXDestroyContext(dpy, ctx);
    XDestroyWindow(dpy, win);
-}
 
+   return (failures == 0 ? ERROR_NONE : ERROR_FAILED);
+}
 
 int
 main(int argc, char *argv[])
 {
    char *displayName = NULL;
    Display *dpy;
+   int returnCode;
 
    dpy = XOpenDisplay(displayName);
    if (!dpy) {
@@ -548,9 +3726,9 @@ main(int argc, char *argv[])
       return -1;
    }
 
-   print_screen_info(dpy, 0, GL_TRUE);
+   returnCode = print_screen_info(dpy, 0, GL_TRUE);
 
    XCloseDisplay(dpy);
 
-   return 0;
+   return returnCode;
 }
diff --git a/progs/tests/getprocaddress.py b/progs/tests/getprocaddress.py
index 8adfc51bd6..699195bd48 100644
--- a/progs/tests/getprocaddress.py
+++ b/progs/tests/getprocaddress.py
@@ -52,7 +52,7 @@ static struct name_test_pair functions[] = {"""
 		prev_category = None
 		
 
-		for f in api.functionIterateByOffset():
+		for f in api.functionIterateByCategory():
 			[category, num] = api.get_category_for_name( f.name )
 			if category != prev_category:
 				print '   { "-%s", NULL},' % category
diff --git a/progs/tests/getteximage.c b/progs/tests/getteximage.c
index e4818a8fab..71f29b4ac8 100644
--- a/progs/tests/getteximage.c
+++ b/progs/tests/getteximage.c
@@ -15,7 +15,7 @@ static int Win;
 
 
 static void
-TestGetTexImage(void)
+TestGetTexImage(GLboolean npot)
 {
    GLuint iter;
    GLubyte *data = (GLubyte *) malloc(1024 * 1024 * 4);
@@ -27,8 +27,8 @@ TestGetTexImage(void)
 
    for (iter = 0; iter < 8; iter++) {
       GLint p = (iter % 8) + 3;
-      GLint w = (1 << p);
-      GLint h = (1 << p);
+      GLint w = npot ? (p * 20) : (1 << p);
+      GLint h = npot ? (p * 10) : (1 << p);
       GLuint i;
       GLint level = 0;
 
@@ -83,63 +83,94 @@ ColorsEqual(const GLubyte ref[4], const GLubyte act[4])
 
 
 static void
-TestGetTexImageRTT(void)
+TestGetTexImageRTT(GLboolean npot)
 {
    GLuint iter;
-   GLuint fb, tex;
-   GLint w = 512;
-   GLint h = 256;
-   GLint level = 0;
-   
-   glGenTextures(1, &tex);
-   glGenFramebuffersEXT(1, &fb);
-
-   glBindTexture(GL_TEXTURE_2D, tex);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0,
-                GL_RGBA, GL_UNSIGNED_BYTE, NULL);
-
-   glBindFramebuffer(GL_FRAMEBUFFER_EXT, fb);
-   glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
-                             GL_TEXTURE_2D, tex, level);
 
    printf("Render to texture + glGetTexImage:\n");
-   printf("  Testing %d x %d tex image\n", w, h);
+
    for (iter = 0; iter < 8; iter++) {
-      GLubyte color[4];
-      GLubyte *data2 = (GLubyte *) malloc(w * h * 4);
-      GLuint i;
 
-      /* random clear color */
-      for (i = 0; i < 4; i++) {
-         color[i] = rand() % 256;
+      GLuint fb, tex;
+      GLint w, h;
+      GLint level = 0;
+
+      if (npot) {
+         w = 200 + iter * 40;
+         h = 200 + iter * 12;
+      }
+      else {
+         w = 4 << iter;
+         h = 4 << iter;
       }
 
-      glClearColor(color[0] / 255.0,
-                   color[1] / 255.0,
-                   color[2] / 255.0,
-                   color[3] / 255.0);
+      glGenTextures(1, &tex);
+      glGenFramebuffersEXT(1, &fb);
 
-      glClear(GL_COLOR_BUFFER_BIT);
+      glBindTexture(GL_TEXTURE_2D, tex);
+      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0,
+                   GL_RGBA, GL_UNSIGNED_BYTE, NULL);
 
-      /* get */
-      glGetTexImage(GL_TEXTURE_2D, level, GL_RGBA, GL_UNSIGNED_BYTE, data2);
+      glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb);
+      glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
+                                GL_TEXTURE_2D, tex, level);
 
-      /* compare */
-      for (i = 0; i < w * h; i += 4) {
-         if (!ColorsEqual(color, data2 + i * 4)) {
-            printf("Render to texture failure!\n");
-            abort();
+      glViewport(0, 0, w, h);
+
+      printf("  Testing %d x %d tex image\n", w, h);
+      {
+         static const GLubyte blue[4] = {0, 0, 255, 255};
+         GLubyte color[4];
+         GLubyte *data2 = (GLubyte *) malloc(w * h * 4);
+         GLuint i;
+
+         /* random clear color */
+         for (i = 0; i < 4; i++) {
+            color[i] = rand() % 256;
+         }
+
+         glClearColor(color[0] / 255.0,
+                      color[1] / 255.0,
+                      color[2] / 255.0,
+                      color[3] / 255.0);
+
+         glClear(GL_COLOR_BUFFER_BIT);
+
+         /* draw polygon over top half, in blue */
+         glColor4ubv(blue);
+         glRectf(0, 0.5, 1.0, 1.0);
+
+         /* get */
+         glGetTexImage(GL_TEXTURE_2D, level, GL_RGBA, GL_UNSIGNED_BYTE, data2);
+
+         /* compare */
+         for (i = 0; i < w * h; i += 4) {
+            if (i < w * h / 2) {
+               /* lower half */
+               if (!ColorsEqual(color, data2 + i * 4)) {
+                  printf("Render to texture failure (expected clear color)!\n");
+                  abort();
+               }
+            }
+            else {
+               /* upper half */
+               if (!ColorsEqual(blue, data2 + i * 4)) {
+                  printf("Render to texture failure (expected blue)!\n");
+                  abort();
+               }
+            }
          }
+
+         free(data2);
       }
 
-      free(data2);
-   }
+      glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+      glDeleteFramebuffersEXT(1, &fb);
+      glDeleteTextures(1, &tex);
 
-   glBindFramebuffer(GL_FRAMEBUFFER_EXT, 0);
-   glDeleteFramebuffersEXT(1, &fb);
-   glDeleteTextures(1, &tex);
+   }
 
    printf("Passed\n");
 }
@@ -152,11 +183,16 @@ Draw(void)
 {
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
-   TestGetTexImage();
+   TestGetTexImage(GL_FALSE);
+   if (glutExtensionSupported("GL_ARB_texture_non_power_of_two"))
+      TestGetTexImage(GL_TRUE);
 
    if (glutExtensionSupported("GL_EXT_framebuffer_object") ||
-       glutExtensionSupported("GL_ARB_framebuffer_object"))
-      TestGetTexImageRTT();
+       glutExtensionSupported("GL_ARB_framebuffer_object")) {
+      TestGetTexImageRTT(GL_FALSE);
+      if (glutExtensionSupported("GL_ARB_texture_non_power_of_two"))
+         TestGetTexImageRTT(GL_TRUE);
+   }
 
    glutDestroyWindow(Win);
    exit(0);
@@ -171,10 +207,10 @@ Reshape(int width, int height)
    glViewport(0, 0, width, height);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
-   glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0);
+   glOrtho(0, 1, 0, 1, -1, 1);
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();
-   glTranslatef(0.0, 0.0, -15.0);
+   glTranslatef(0.0, 0.0, 0.0);
 }
 
 
diff --git a/progs/tests/texcompsub.c b/progs/tests/texcompsub.c
index 79a5f958a1..50106bf1e2 100644
--- a/progs/tests/texcompsub.c
+++ b/progs/tests/texcompsub.c
@@ -6,6 +6,7 @@
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <GL/glew.h>
 #include <GL/glut.h>
 
@@ -31,6 +32,8 @@ CheckError(int line)
 static void
 LoadCompressedImage(void)
 {
+   unsigned char ImgDataTemp[ImgSize / 4];
+   unsigned i;
    const GLenum filter = GL_LINEAR;
    glTexImage2D(Target, 0, CompFormat, ImgWidth, ImgHeight, 0,
                 GL_RGB, GL_UNSIGNED_BYTE, NULL);
@@ -40,11 +43,24 @@ LoadCompressedImage(void)
                                 0, 0, /* pos */
                                 ImgWidth, ImgHeight / 2,
                                 CompFormat, ImgSize / 2, ImgData + ImgSize / 2);
-   /* top half */
+
+   /* top left */
+   for (i = 0; i < ImgHeight / 8; i++) {
+      memcpy(&ImgDataTemp[i * ImgWidth], &ImgData[i * 2 * ImgWidth], ImgWidth);
+   }
    glCompressedTexSubImage2DARB(Target, 0,
                                 0, ImgHeight / 2, /* pos */
-                                ImgWidth, ImgHeight / 2,
-                                CompFormat, ImgSize / 2, ImgData);
+                                ImgWidth / 2, ImgHeight / 2,
+                                CompFormat, ImgSize / 4, ImgDataTemp);
+
+   /* top right */
+   for (i = 0; i < ImgHeight / 8; i++) {
+      memcpy(&ImgDataTemp[i * ImgWidth], &ImgData[i * 2 * ImgWidth + ImgWidth], ImgWidth);
+   }
+   glCompressedTexSubImage2DARB(Target, 0,
+                                ImgWidth / 2, ImgHeight / 2, /* pos */
+                                ImgWidth / 2, ImgHeight / 2,
+                                CompFormat, ImgSize / 4, ImgDataTemp);
 
    glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, filter);
    glTexParameteri(Target, GL_TEXTURE_MAG_FILTER, filter);
diff --git a/progs/tests/texwrap.c b/progs/tests/texwrap.c
index 12f045b72e..92c8a2f14c 100644
--- a/progs/tests/texwrap.c
+++ b/progs/tests/texwrap.c
@@ -258,8 +258,26 @@ static void Init( void )
    }
 
    glBindTexture(GL_TEXTURE_2D, BORDER_TEXTURE);
+#ifdef TEST_PBO_DLIST
+   /* test fetching teximage from PBO in display list */
+   {
+      GLuint b = 42, l = 10;
+
+      glBindBufferARB(GL_PIXEL_UNPACK_BUFFER, b);
+      glBufferDataARB(GL_PIXEL_UNPACK_BUFFER, sizeof(BorderImage),
+                      BorderImage, GL_STREAM_DRAW);
+
+      glNewList(l, GL_COMPILE);
+      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SIZE+2, SIZE+2, 1,
+                GL_RGBA, GL_UNSIGNED_BYTE, (void *) 0/* BorderImage*/);
+      glEndList();
+      glCallList(l);
+      glBindBufferARB(GL_PIXEL_UNPACK_BUFFER, 0);
+   }
+#else
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, SIZE+2, SIZE+2, 1,
                 GL_RGBA, GL_UNSIGNED_BYTE, (void *) BorderImage);
+#endif
 
    for (i = 0; i < SIZE; i++) {
       for (j = 0; j < SIZE; j++) {
diff --git a/progs/trivial/.gitignore b/progs/trivial/.gitignore
index dce733a70a..4d6e405c50 100644
--- a/progs/trivial/.gitignore
+++ b/progs/trivial/.gitignore
@@ -5,10 +5,17 @@ clear-random
 clear-repeat
 clear-scissor
 clear-undefined
+createwin
+dlist-begin-call-end
 dlist-dangling
 dlist-degenerate
 dlist-edgeflag
 dlist-edgeflag-dangling
+dlist-flat-tri
+dlist-mat-tri
+dlist-recursive-call
+dlist-tri-flat-tri
+dlist-tri-mat-tri
 draw2arrays
 drawarrays
 drawelements
@@ -31,6 +38,7 @@ lineloop
 lineloop-clip
 lineloop-elts
 linestrip
+linestrip-clip
 linestrip-flat-stipple
 linestrip-stipple
 linestrip-stipple-wide
@@ -71,8 +79,10 @@ quadstrip-cont
 quadstrip-flat
 readtex.c
 readtex.h
+readpixels
 tri
 tri-alpha
+tri-alpha-tex
 tri-array-interleaved
 tri-blend
 tri-blend-color
@@ -80,6 +90,7 @@ tri-blend-max
 tri-blend-min
 tri-blend-revsub
 tri-blend-sub
+tri-clear
 tri-clip
 tri-cull
 tri-cull-both
@@ -94,6 +105,7 @@ tri-fog
 tri-fp
 tri-fp-const-imm
 tri-lit
+tri-lit-material
 tri-logicop-none
 tri-logicop-xor
 tri-mask-tri
@@ -102,6 +114,7 @@ tri-orig
 tri-query
 tri-repeat
 tri-scissor-tri
+tri-square
 tri-stencil
 tri-stipple
 tri-tex
@@ -111,6 +124,7 @@ tri-unfilled
 tri-unfilled-clip
 tri-unfilled-edgeflag
 tri-unfilled-fog
+tri-unfilled-point
 tri-unfilled-smooth
 tri-unfilled-tri
 tri-unfilled-tri-lit
@@ -119,6 +133,7 @@ tri-unfilled-userclip-stip
 tri-userclip
 tri-viewport
 tri-z
+tri-z-9
 tri-z-eq
 trifan
 trifan-flat
diff --git a/progs/trivial/Makefile b/progs/trivial/Makefile
index 3bd8faff99..70728616d2 100644
--- a/progs/trivial/Makefile
+++ b/progs/trivial/Makefile
@@ -18,6 +18,7 @@ SOURCES = \
 	clear-repeat.c \
 	clear-random.c \
 	clear.c \
+	createwin.c \
 	dlist-dangling.c \
 	dlist-flat-tri.c \
 	dlist-mat-tri.c \
@@ -48,6 +49,7 @@ SOURCES = \
 	lineloop-clip.c \
 	lineloop-elts.c \
 	lineloop.c \
+	linestrip-clip.c \
 	linestrip-flat-stipple.c \
 	linestrip-stipple-wide.c \
 	linestrip-stipple.c \
@@ -87,7 +89,9 @@ SOURCES = \
 	quadstrip-cont.c \
 	quadstrip-flat.c \
 	quadstrip.c \
+	readpixels.c \
 	tri-alpha.c \
+	tri-alpha-tex.c \
 	tri-array-interleaved.c \
 	tri-blend-color.c \
 	tri-blend-max.c \
@@ -95,6 +99,7 @@ SOURCES = \
 	tri-blend-revsub.c \
 	tri-blend-sub.c \
 	tri-blend.c \
+	tri-clear.c \
 	tri-clip.c \
 	tri-cull-both.c \
 	tri-cull.c \
@@ -117,6 +122,7 @@ SOURCES = \
 	tri-query.c \
 	tri-repeat.c \
 	tri-scissor-tri.c \
+	tri-square.c \
 	tri-stencil.c \
 	tri-stipple.c \
 	tri-multitex-vbo.c \
@@ -126,6 +132,7 @@ SOURCES = \
 	tri-unfilled-fog.c \
 	tri-unfilled-edgeflag.c \
 	tri-unfilled-clip.c \
+	tri-unfilled-point.c \
 	tri-unfilled-smooth.c \
 	tri-unfilled-tri.c \
 	tri-unfilled-tri-lit.c \
@@ -134,6 +141,7 @@ SOURCES = \
 	tri-unfilled.c \
 	tri-userclip.c \
 	tri-viewport.c \
+	tri-z-9.c \
 	tri-z-eq.c \
 	tri-z.c \
 	tri.c \
diff --git a/progs/util/shaderutil.c b/progs/util/shaderutil.c
index 13b68d90e0..489e71cc30 100644
--- a/progs/util/shaderutil.c
+++ b/progs/util/shaderutil.c
@@ -9,21 +9,12 @@
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <GL/glew.h>
 #include <GL/glut.h>
 #include "shaderutil.h"
 
 
-static void
-Init(void)
-{
-   static GLboolean firstCall = GL_TRUE;
-   if (firstCall) {
-      firstCall = GL_FALSE;
-   }
-}
-
-
 GLboolean
 ShadersSupported(void)
 {
@@ -47,8 +38,6 @@ CompileShaderText(GLenum shaderType, const char *text)
    GLuint shader;
    GLint stat;
 
-   Init();
-
    shader = glCreateShader(shaderType);
    glShaderSource(shader, 1, (const GLchar **) &text, NULL);
    glCompileShader(shader);
@@ -79,9 +68,6 @@ CompileShaderFile(GLenum shaderType, const char *filename)
    GLuint shader;
    FILE *f;
 
-   Init();
-
-
    f = fopen(filename, "r");
    if (!f) {
       fprintf(stderr, "Unable to open shader file %s\n", filename);
@@ -136,7 +122,7 @@ LinkShaders(GLuint vertShader, GLuint fragShader)
 
 
 void
-InitUniforms(GLuint program, struct uniform_info uniforms[])
+SetUniformValues(GLuint program, struct uniform_info uniforms[])
 {
    GLuint i;
 
@@ -144,28 +130,133 @@ InitUniforms(GLuint program, struct uniform_info uniforms[])
       uniforms[i].location
          = glGetUniformLocation(program, uniforms[i].name);
 
-      printf("Uniform %s location: %d\n", uniforms[i].name,
-             uniforms[i].location);
-
-      switch (uniforms[i].size) {
-      case 1:
-         if (uniforms[i].type == GL_INT)
-            glUniform1i(uniforms[i].location,
-                             (GLint) uniforms[i].value[0]);
-         else
-            glUniform1fv(uniforms[i].location, 1, uniforms[i].value);
+      switch (uniforms[i].type) {
+      case GL_INT:
+      case GL_SAMPLER_1D:
+      case GL_SAMPLER_2D:
+      case GL_SAMPLER_3D:
+      case GL_SAMPLER_CUBE:
+      case GL_SAMPLER_2D_RECT_ARB:
+         glUniform1i(uniforms[i].location,
+                     (GLint) uniforms[i].value[0]);
+         break;
+      case GL_FLOAT:
+         glUniform1fv(uniforms[i].location, 1, uniforms[i].value);
          break;
-      case 2:
+      case GL_FLOAT_VEC2:
          glUniform2fv(uniforms[i].location, 1, uniforms[i].value);
          break;
-      case 3:
+      case GL_FLOAT_VEC3:
          glUniform3fv(uniforms[i].location, 1, uniforms[i].value);
          break;
-      case 4:
+      case GL_FLOAT_VEC4:
          glUniform4fv(uniforms[i].location, 1, uniforms[i].value);
          break;
       default:
-         abort();
+         if (strncmp(uniforms[i].name, "gl_", 3) == 0) {
+            /* built-in uniform: ignore */
+         }
+         else {
+            fprintf(stderr,
+                    "Unexpected uniform data type in SetUniformValues\n");
+            abort();
+         }
       }
    }
 }
+
+
+/** Get list of uniforms used in the program */
+GLuint
+GetUniforms(GLuint program, struct uniform_info uniforms[])
+{
+   GLint n, max, i;
+
+   glGetProgramiv(program, GL_ACTIVE_UNIFORMS, &n);
+   glGetProgramiv(program, GL_ACTIVE_UNIFORM_MAX_LENGTH, &max);
+
+   for (i = 0; i < n; i++) {
+      GLint size, len;
+      GLenum type;
+      char name[100];
+
+      glGetActiveUniform(program, i, 100, &len, &size, &type, name);
+
+      uniforms[i].name = strdup(name);
+      uniforms[i].size = size;
+      uniforms[i].type = type;
+      uniforms[i].location = glGetUniformLocation(program, name);
+   }
+
+   uniforms[i].name = NULL; /* end of list */
+
+   return n;
+}
+
+
+void
+PrintUniforms(const struct uniform_info uniforms[])
+{
+   GLint i;
+
+   printf("Uniforms:\n");
+
+   for (i = 0; uniforms[i].name; i++) {
+      printf("  %d: %s size=%d type=0x%x loc=%d value=%g, %g, %g, %g\n",
+             i,
+             uniforms[i].name,
+             uniforms[i].size,
+             uniforms[i].type,
+             uniforms[i].location,
+             uniforms[i].value[0],
+             uniforms[i].value[1],
+             uniforms[i].value[2],
+             uniforms[i].value[3]);
+   }
+}
+
+
+/** Get list of attribs used in the program */
+GLuint
+GetAttribs(GLuint program, struct attrib_info attribs[])
+{
+   GLint n, max, i;
+
+   glGetProgramiv(program, GL_ACTIVE_ATTRIBUTES, &n);
+   glGetProgramiv(program, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, &max);
+
+   for (i = 0; i < n; i++) {
+      GLint size, len;
+      GLenum type;
+      char name[100];
+
+      glGetActiveAttrib(program, i, 100, &len, &size, &type, name);
+
+      attribs[i].name = strdup(name);
+      attribs[i].size = size;
+      attribs[i].type = type;
+      attribs[i].location = glGetAttribLocation(program, name);
+   }
+
+   attribs[i].name = NULL; /* end of list */
+
+   return n;
+}
+
+
+void
+PrintAttribs(const struct attrib_info attribs[])
+{
+   GLint i;
+
+   printf("Attribs:\n");
+
+   for (i = 0; attribs[i].name; i++) {
+      printf("  %d: %s size=%d type=0x%x loc=%d\n",
+             i,
+             attribs[i].name,
+             attribs[i].size,
+             attribs[i].type,
+             attribs[i].location);
+   }
+}
diff --git a/progs/util/shaderutil.h b/progs/util/shaderutil.h
index cfb8c1f3b0..0a6be02675 100644
--- a/progs/util/shaderutil.h
+++ b/progs/util/shaderutil.h
@@ -6,8 +6,8 @@
 struct uniform_info
 {
    const char *name;
-   GLuint size;
-   GLenum type;  /**< GL_FLOAT or GL_INT */
+   GLuint size;  /**< number of value[] elements: 1, 2, 3 or 4 */
+   GLenum type;  /**< GL_FLOAT, GL_FLOAT_VEC4, GL_INT, etc */
    GLfloat value[4];
    GLint location;  /**< filled in by InitUniforms() */
 };
@@ -15,6 +15,15 @@ struct uniform_info
 #define END_OF_UNIFORMS   { NULL, 0, GL_NONE, { 0, 0, 0, 0 }, -1 }
 
 
+struct attrib_info
+{
+   const char *name;
+   GLuint size;  /**< number of value[] elements: 1, 2, 3 or 4 */
+   GLenum type;  /**< GL_FLOAT, GL_FLOAT_VEC4, GL_INT, etc */
+   GLint location;
+};
+
+
 extern GLboolean
 ShadersSupported(void);
 
@@ -28,7 +37,18 @@ extern GLuint
 LinkShaders(GLuint vertShader, GLuint fragShader);
 
 extern void
-InitUniforms(GLuint program, struct uniform_info uniforms[]);
+SetUniformValues(GLuint program, struct uniform_info uniforms[]);
+
+extern GLuint
+GetUniforms(GLuint program, struct uniform_info uniforms[]);
+
+extern void
+PrintUniforms(const struct uniform_info uniforms[]);
 
+extern GLuint
+GetAttribs(GLuint program, struct attrib_info attribs[]);
+
+extern void
+PrintAttribs(const struct attrib_info attribs[]);
 
 #endif /* SHADER_UTIL_H */
diff --git a/progs/vp/arl-static.txt b/progs/vp/arl-static.txt
index aea87b79a4..83aebf689e 100644
--- a/progs/vp/arl-static.txt
+++ b/progs/vp/arl-static.txt
@@ -1,5 +1,5 @@
 !!ARBvp1.0
-PARAM arr[5]  = { {.0,.1,.2,.3}, {.4,.5,.6,.7}, {.8,.9,.10,.1}, {.12,.3,.4,.14}, {.5,.8,.1,.9},  {.2,0,.4,.1}, {.6,.1,.8,.9}};
+PARAM arr[7]  = { {.0,.1,.2,.3}, {.4,.5,.6,.7}, {.8,.9,.10,.1}, {.12,.3,.4,.14}, {.5,.8,.1,.9},  {.2,0,.4,.1}, {.6,.1,.8,.9}};
 ADDRESS addr;
 ARL addr.x, {3}.x;
 MOV result.color, arr[addr.x];
diff --git a/progs/vp/arl-unused.txt b/progs/vp/arl-unused.txt
index 7bdbb8e86c..c2afe3c092 100644
--- a/progs/vp/arl-unused.txt
+++ b/progs/vp/arl-unused.txt
@@ -1,5 +1,5 @@
 !!ARBvp1.0
-PARAM arr[5]  = { {.0,.1,.2,.3}, {.4,.5,.6,.7}, {.8,.9,.10,.1}, {.12,.3,.4,.14}, {.5,.8,.1,.9},  {.2,0,.4,.1}, {.6,.1,.8,.9}};
+PARAM arr[7]  = { {.0,.1,.2,.3}, {.4,.5,.6,.7}, {.8,.9,.10,.1}, {.12,.3,.4,.14}, {.5,.8,.1,.9},  {.2,0,.4,.1}, {.6,.1,.8,.9}};
 ADDRESS addr;
 ARL addr.x, {3}.x;  # not actually used
 MOV result.color, arr[3];
diff --git a/progs/xdemos/Makefile b/progs/xdemos/Makefile
index 6581df8039..53e1c54ef3 100644
--- a/progs/xdemos/Makefile
+++ b/progs/xdemos/Makefile
@@ -26,6 +26,7 @@ PROGS = \
 	glxsnoop \
 	glxswapcontrol \
 	manywin \
+	multictx \
 	offset \
 	overlay \
 	pbinfo \
diff --git a/progs/xdemos/glxcontexts.c b/progs/xdemos/glxcontexts.c
index 481749be3d..9f83679acd 100644
--- a/progs/xdemos/glxcontexts.c
+++ b/progs/xdemos/glxcontexts.c
@@ -378,6 +378,9 @@ make_window( Display *dpy, const char *name,
    scrnum = DefaultScreen( dpy );
    root = RootWindow( dpy, scrnum );
 
+   if (visinfo)
+	   XFree(visinfo);
+
    visinfo = glXChooseVisual( dpy, scrnum, attribs );
    if (!visinfo) {
       printf("Error: couldn't get an RGB, Double-buffered visual\n");
diff --git a/progs/xdemos/glxgears.c b/progs/xdemos/glxgears.c
index bc84ee3dbd..088f25a357 100644
--- a/progs/xdemos/glxgears.c
+++ b/progs/xdemos/glxgears.c
@@ -23,10 +23,7 @@
  * This is a port of the infamous "gears" demo to straight GLX (i.e. no GLUT)
  * Port by Brian Paul  23 March 2001
  *
- * Command line options:
- *    -info      print GL implementation information
- *    -stereo    use stereo enabled GLX visual
- *
+ * See usage() below for command line options.
  */
 
 
@@ -45,10 +42,6 @@ typedef int (*PFNGLXGETSWAPINTERVALMESAPROC)(void);
 #endif
 
 
-static int is_glx_extension_supported(Display *dpy, const char *query);
-
-static void query_vsync(Display *dpy);
-
 #define BENCHMARK
 
 #ifdef BENCHMARK
@@ -572,7 +565,7 @@ make_window( Display *dpy, const char *name,
 /**
  * Determine whether or not a GLX extension is supported.
  */
-int
+static int
 is_glx_extension_supported(Display *dpy, const char *query)
 {
    const int scrnum = DefaultScreen(dpy);
@@ -592,7 +585,7 @@ is_glx_extension_supported(Display *dpy, const char *query)
 /**
  * Attempt to determine whether or not the display is synched to vblank.
  */
-void
+static void
 query_vsync(Display *dpy)
 {
    int interval = 0;
diff --git a/progs/xdemos/glxswapcontrol.c b/progs/xdemos/glxswapcontrol.c
index df9f7ad784..cd60d460a0 100644
--- a/progs/xdemos/glxswapcontrol.c
+++ b/progs/xdemos/glxswapcontrol.c
@@ -587,6 +587,9 @@ event_loop(Display *dpy, Window win)
       angle += 2.0;
 
       draw();
+
+      glXSwapBuffers(dpy, win);
+
       if ( get_frame_usage != NULL ) {
 	 GLfloat   temp;
 	 
@@ -594,8 +597,6 @@ event_loop(Display *dpy, Window win)
 	 frame_usage += temp;
       }
 
-      glXSwapBuffers(dpy, win);
-
       /* calc framerate */
       {
          static int t0 = -1;
diff --git a/progs/xdemos/multictx.c b/progs/xdemos/multictx.c
new file mode 100644
index 0000000000..75255b2860
--- /dev/null
+++ b/progs/xdemos/multictx.c
@@ -0,0 +1,585 @@
+/*
+ * Copyright (C) 2009  VMware, Inc.   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 rendering with two contexts into one window.
+ * Setup different rendering state for each context to check that
+ * context switching is handled properly.
+ *
+ * Brian Paul
+ * 6 Aug 2009
+ */
+
+
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <X11/Xlib.h>
+#include <X11/keysym.h>
+#include <GL/gl.h>
+#include <GL/glx.h>
+
+
+
+#ifndef M_PI
+#define M_PI 3.14159265
+#endif
+
+
+/** Event handler results: */
+#define NOP 0
+#define EXIT 1
+#define DRAW 2
+
+static GLfloat view_rotx = 0.0, view_roty = 210.0, view_rotz = 0.0;
+static GLint gear1, gear2;
+static GLfloat angle = 0.0;
+
+static GLboolean animate = GL_TRUE;	/* Animation */
+
+
+static double
+current_time(void)
+{
+   struct timeval tv;
+#ifdef __VMS
+   (void) gettimeofday(&tv, NULL );
+#else
+   struct timezone tz;
+   (void) gettimeofday(&tv, &tz);
+#endif
+   return (double) tv.tv_sec + tv.tv_usec / 1000000.0;
+}
+
+
+/*
+ *
+ *  Draw a gear wheel.  You'll probably want to call this function when
+ *  building a display list since we do a lot of trig here.
+ * 
+ *  Input:  inner_radius - radius of hole at center
+ *          outer_radius - radius at center of teeth
+ *          width - width of gear
+ *          teeth - number of teeth
+ *          tooth_depth - depth of tooth
+ */
+static void
+gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
+     GLint teeth, GLfloat tooth_depth)
+{
+   GLint i;
+   GLfloat r0, r1, r2;
+   GLfloat angle, da;
+   GLfloat u, v, len;
+
+   r0 = inner_radius;
+   r1 = outer_radius - tooth_depth / 2.0;
+   r2 = outer_radius + tooth_depth / 2.0;
+
+   da = 2.0 * M_PI / teeth / 4.0;
+
+   glShadeModel(GL_FLAT);
+
+   glNormal3f(0.0, 0.0, 1.0);
+
+   /* draw front face */
+   glBegin(GL_QUAD_STRIP);
+   for (i = 0; i <= teeth; i++) {
+      angle = i * 2.0 * M_PI / teeth;
+      glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+      glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+      if (i < teeth) {
+	 glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+	 glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+		    width * 0.5);
+      }
+   }
+   glEnd();
+
+   /* draw front sides of teeth */
+   glBegin(GL_QUADS);
+   da = 2.0 * M_PI / teeth / 4.0;
+   for (i = 0; i < teeth; i++) {
+      angle = i * 2.0 * M_PI / teeth;
+
+      glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+      glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
+      glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+		 width * 0.5);
+      glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+		 width * 0.5);
+   }
+   glEnd();
+
+   glNormal3f(0.0, 0.0, -1.0);
+
+   /* draw back face */
+   glBegin(GL_QUAD_STRIP);
+   for (i = 0; i <= teeth; i++) {
+      angle = i * 2.0 * M_PI / teeth;
+      glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+      glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+      if (i < teeth) {
+	 glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+		    -width * 0.5);
+	 glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+      }
+   }
+   glEnd();
+
+   /* draw back sides of teeth */
+   glBegin(GL_QUADS);
+   da = 2.0 * M_PI / teeth / 4.0;
+   for (i = 0; i < teeth; i++) {
+      angle = i * 2.0 * M_PI / teeth;
+
+      glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+		 -width * 0.5);
+      glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+		 -width * 0.5);
+      glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
+      glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+   }
+   glEnd();
+
+   /* draw outward faces of teeth */
+   glBegin(GL_QUAD_STRIP);
+   for (i = 0; i < teeth; i++) {
+      angle = i * 2.0 * M_PI / teeth;
+
+      glVertex3f(r1 * cos(angle), r1 * sin(angle), width * 0.5);
+      glVertex3f(r1 * cos(angle), r1 * sin(angle), -width * 0.5);
+      u = r2 * cos(angle + da) - r1 * cos(angle);
+      v = r2 * sin(angle + da) - r1 * sin(angle);
+      len = sqrt(u * u + v * v);
+      u /= len;
+      v /= len;
+      glNormal3f(v, -u, 0.0);
+      glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), width * 0.5);
+      glVertex3f(r2 * cos(angle + da), r2 * sin(angle + da), -width * 0.5);
+      glNormal3f(cos(angle), sin(angle), 0.0);
+      glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+		 width * 0.5);
+      glVertex3f(r2 * cos(angle + 2 * da), r2 * sin(angle + 2 * da),
+		 -width * 0.5);
+      u = r1 * cos(angle + 3 * da) - r2 * cos(angle + 2 * da);
+      v = r1 * sin(angle + 3 * da) - r2 * sin(angle + 2 * da);
+      glNormal3f(v, -u, 0.0);
+      glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+		 width * 0.5);
+      glVertex3f(r1 * cos(angle + 3 * da), r1 * sin(angle + 3 * da),
+		 -width * 0.5);
+      glNormal3f(cos(angle), sin(angle), 0.0);
+   }
+
+   glVertex3f(r1 * cos(0), r1 * sin(0), width * 0.5);
+   glVertex3f(r1 * cos(0), r1 * sin(0), -width * 0.5);
+
+   glEnd();
+
+   glShadeModel(GL_SMOOTH);
+
+   /* draw inside radius cylinder */
+   glBegin(GL_QUAD_STRIP);
+   for (i = 0; i <= teeth; i++) {
+      angle = i * 2.0 * M_PI / teeth;
+      glNormal3f(-cos(angle), -sin(angle), 0.0);
+      glVertex3f(r0 * cos(angle), r0 * sin(angle), -width * 0.5);
+      glVertex3f(r0 * cos(angle), r0 * sin(angle), width * 0.5);
+   }
+   glEnd();
+}
+
+
+static void
+draw(int ctx)
+{
+   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+   glPushMatrix();
+   glRotatef(view_rotx, 1.0, 0.0, 0.0);
+   glRotatef(view_roty + angle, 0.0, 1.0, 0.0);
+   glRotatef(view_rotz, 0.0, 0.0, 1.0);
+
+   if (ctx == 0) {
+      glDisable(GL_CULL_FACE);
+      glPushMatrix();
+      glRotatef(angle, 0.0, 0.0, 1.0);
+      glCallList(gear1);
+      glPopMatrix();
+      /* This should not effect the other context's rendering */
+      glEnable(GL_CULL_FACE);
+      glCullFace(GL_FRONT_AND_BACK);
+   }
+   else {
+      glPushMatrix();
+      glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0);
+      glCallList(gear2);
+      glPopMatrix();
+   }
+
+   glPopMatrix();
+
+   /* this flush is important since we'll be switching contexts next */
+   glFlush();
+}
+
+
+
+static void
+draw_frame(Display *dpy, Window win, GLXContext ctx1, GLXContext ctx2)
+{
+   static double tRot0 = -1.0;
+   double dt, t = current_time();
+
+   if (tRot0 < 0.0)
+      tRot0 = t;
+   dt = t - tRot0;
+   tRot0 = t;
+
+   if (animate) {
+      /* advance rotation for next frame */
+      angle += 70.0 * dt;  /* 70 degrees per second */
+      if (angle > 3600.0)
+         angle -= 3600.0;
+   }
+
+   glXMakeCurrent(dpy, (GLXDrawable) win, ctx1);
+   draw(0);
+
+   glXMakeCurrent(dpy, (GLXDrawable) win, ctx2);
+   draw(1);
+
+   glXSwapBuffers(dpy, win);
+}
+
+
+/* new window size or exposure */
+static void
+reshape(Display *dpy, Window win,
+        GLXContext ctx1, GLXContext ctx2, int width, int height)
+{
+   int i;
+
+   width /= 2;
+
+   /* loop: left half of window, right half of window */
+   for (i = 0; i < 2; i++) {
+      if (i == 0)
+         glXMakeCurrent(dpy, win, ctx1);
+      else
+         glXMakeCurrent(dpy, win, ctx2);
+
+      glViewport(width * i, 0, width, height);
+      glScissor(width * i, 0, width, height);
+
+      {
+         GLfloat h = (GLfloat) height / (GLfloat) width;
+
+         glMatrixMode(GL_PROJECTION);
+         glLoadIdentity();
+         glFrustum(-1.0, 1.0, -h, h, 5.0, 60.0);
+      }
+
+      glMatrixMode(GL_MODELVIEW);
+      glLoadIdentity();
+      glTranslatef(0.0, 0.0, -30.0);
+   }
+}
+   
+
+
+static void
+init(Display *dpy, Window win, GLXContext ctx1, GLXContext ctx2)
+{
+   static GLfloat pos[4] = { 5.0, 5.0, 10.0, 0.0 };
+   static GLfloat red[4] = { 0.8, 0.1, 0.0, 1.0 };
+   static GLfloat green[4] = { 0.0, 0.8, 0.2, 0.5 };
+   /*static GLfloat blue[4] = { 0.2, 0.2, 1.0, 1.0 };*/
+
+   /* first ctx */
+   {
+      static GLuint stipple[32] = {
+         0x00ff00ff, 0x00ff00ff, 0x00ff00ff, 0x00ff00ff,
+         0x00ff00ff, 0x00ff00ff, 0x00ff00ff, 0x00ff00ff,
+
+         0xff00ff00, 0xff00ff00, 0xff00ff00, 0xff00ff00,
+         0xff00ff00, 0xff00ff00, 0xff00ff00, 0xff00ff00,
+
+         0x00ff00ff, 0x00ff00ff, 0x00ff00ff, 0x00ff00ff,
+         0x00ff00ff, 0x00ff00ff, 0x00ff00ff, 0x00ff00ff,
+
+         0xff00ff00, 0xff00ff00, 0xff00ff00, 0xff00ff00,
+         0xff00ff00, 0xff00ff00, 0xff00ff00, 0xff00ff00
+      };
+
+      glXMakeCurrent(dpy, win, ctx1);
+
+      glLightfv(GL_LIGHT0, GL_POSITION, pos);
+      glEnable(GL_LIGHTING);
+      glEnable(GL_LIGHT0);
+      glEnable(GL_DEPTH_TEST);
+
+      gear1 = glGenLists(1);
+      glNewList(gear1, GL_COMPILE);
+      glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
+      gear(1.0, 4.0, 1.0, 20, 0.7);
+      glEndList();
+
+      glEnable(GL_NORMALIZE);
+      glEnable(GL_SCISSOR_TEST);
+      glClearColor(0.4, 0.4, 0.4, 1.0);
+
+      glPolygonStipple((GLubyte *) stipple);
+      glEnable(GL_POLYGON_STIPPLE);
+   }
+
+   /* second ctx */
+   {
+      glXMakeCurrent(dpy, win, ctx2);
+
+      glLightfv(GL_LIGHT0, GL_POSITION, pos);
+      glEnable(GL_LIGHTING);
+      glEnable(GL_LIGHT0);
+      glEnable(GL_DEPTH_TEST);
+
+      gear2 = glGenLists(1);
+      glNewList(gear2, GL_COMPILE);
+      glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
+      gear(1.5, 3.0, 1.5, 16, 0.7);
+      glEndList();
+
+      glEnable(GL_NORMALIZE);
+      glEnable(GL_SCISSOR_TEST);
+      glClearColor(0.6, 0.6, 0.6, 1.0);
+
+      glEnable(GL_BLEND);
+      glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+   }
+}
+
+
+/**
+ * Create an RGB, double-buffered window.
+ * Return the window and two context handles.
+ */
+static void
+make_window_and_contexts( Display *dpy, const char *name,
+                          int x, int y, int width, int height,
+                          Window *winRet,
+                          GLXContext *ctxRet1,
+                          GLXContext *ctxRet2)
+{
+   int attribs[] = { GLX_RGBA,
+                     GLX_RED_SIZE, 1,
+                     GLX_GREEN_SIZE, 1,
+                     GLX_BLUE_SIZE, 1,
+                     GLX_DOUBLEBUFFER,
+                     GLX_DEPTH_SIZE, 1,
+                     None };
+   int scrnum;
+   XSetWindowAttributes attr;
+   unsigned long mask;
+   Window root;
+   Window win;
+   XVisualInfo *visinfo;
+
+   scrnum = DefaultScreen( dpy );
+   root = RootWindow( dpy, scrnum );
+
+   visinfo = glXChooseVisual( dpy, scrnum, attribs );
+   if (!visinfo) {
+      printf("Error: couldn't get an RGB, Double-buffered visual\n");
+      exit(1);
+   }
+
+   /* window attributes */
+   attr.background_pixel = 0;
+   attr.border_pixel = 0;
+   attr.colormap = XCreateColormap( dpy, root, visinfo->visual, AllocNone);
+   attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+   mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+   win = XCreateWindow( 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(dpy, win, &sizehints);
+      XSetStandardProperties(dpy, win, name, name,
+                              None, (char **)NULL, 0, &sizehints);
+   }
+
+   *winRet = win;
+   *ctxRet1 = glXCreateContext( dpy, visinfo, NULL, True );
+   *ctxRet2 = glXCreateContext( dpy, visinfo, NULL, True );
+
+   if (!*ctxRet1 || !*ctxRet2) {
+      printf("Error: glXCreateContext failed\n");
+      exit(1);
+   }
+
+   XFree(visinfo);
+}
+
+
+/**
+ * Handle one X event.
+ * \return NOP, EXIT or DRAW
+ */
+static int
+handle_event(Display *dpy, Window win, GLXContext ctx1, GLXContext ctx2,
+             XEvent *event)
+{
+   (void) dpy;
+   (void) win;
+
+   switch (event->type) {
+   case Expose:
+      return DRAW;
+   case ConfigureNotify:
+      reshape(dpy, win, ctx1, ctx2,
+              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 EXIT;
+            }
+            else if (buffer[0] == 'a' || buffer[0] == 'A') {
+               animate = !animate;
+            }
+         }
+         return DRAW;
+      }
+   }
+   return NOP;
+}
+
+
+static void
+event_loop(Display *dpy, Window win, GLXContext ctx1, GLXContext ctx2)
+{
+   while (1) {
+      int op;
+      while (!animate || XPending(dpy) > 0) {
+         XEvent event;
+         XNextEvent(dpy, &event);
+         op = handle_event(dpy, win, ctx1, ctx2, &event);
+         if (op == EXIT)
+            return;
+         else if (op == DRAW)
+            break;
+      }
+
+      draw_frame(dpy, win, ctx1, ctx2);
+   }
+}
+
+
+int
+main(int argc, char *argv[])
+{
+   unsigned int winWidth = 800, winHeight = 400;
+   int x = 0, y = 0;
+   Display *dpy;
+   Window win;
+   GLXContext ctx1, ctx2;
+   char *dpyName = NULL;
+   GLboolean printInfo = GL_FALSE;
+   int i;
+
+   for (i = 1; i < argc; i++) {
+      if (strcmp(argv[i], "-display") == 0) {
+         dpyName = argv[i+1];
+         i++;
+      }
+      else {
+         return 1;
+      }
+   }
+
+   dpy = XOpenDisplay(dpyName);
+   if (!dpy) {
+      printf("Error: couldn't open display %s\n",
+	     dpyName ? dpyName : getenv("DISPLAY"));
+      return -1;
+   }
+
+   make_window_and_contexts(dpy, "multictx", x, y, winWidth, winHeight,
+                            &win, &ctx1, &ctx2);
+   XMapWindow(dpy, win);
+
+   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(dpy, win, ctx1, ctx2);
+
+   /* Set initial projection/viewing transformation.
+    * We can't be sure we'll get a ConfigureNotify event when the window
+    * first appears.
+    */
+   reshape(dpy, win, ctx1, ctx2, winWidth, winHeight);
+
+   event_loop(dpy, win, ctx1, ctx2);
+
+   glDeleteLists(gear1, 1);
+   glDeleteLists(gear2, 1);
+   glXDestroyContext(dpy, ctx1);
+   glXDestroyContext(dpy, ctx2);
+   XDestroyWindow(dpy, win);
+   XCloseDisplay(dpy);
+
+   return 0;
+}