Merge branch 'master' into instanced-arrays

Conflicts:
	src/gallium/auxiliary/tgsi/tgsi_dump.c
	src/gallium/include/pipe/p_shader_tokens.h

37 files changed, 861 insertions, 375 deletions

diff --git a/progs/SConscript b/progs/SConscript
index 66eaf9e541..3b180d00bc 100644
--- a/progs/SConscript
+++ b/progs/SConscript
@@ -1,5 +1,43 @@
 SConscript([
     'util/SConscript',
+])
+
+Import('*')
+
+progs_env = env.Clone()
+
+if progs_env['platform'] == 'windows':
+    progs_env.Append(CPPDEFINES = ['NOMINMAX'])
+    progs_env.Prepend(LIBS = [
+        'winmm',
+        'kernel32',
+        'user32',
+        'gdi32',
+    ])
+
+# OpenGL
+if progs_env['platform'] == 'windows':
+    progs_env.Prepend(LIBS = ['glu32', 'opengl32'])
+else:
+    progs_env.Prepend(LIBS = ['GLU', 'GL'])
+
+# Glut
+progs_env.Prepend(LIBS = [glut])
+
+# GLEW
+progs_env.Prepend(LIBS = [glew])
+
+progs_env.Prepend(CPPPATH = [
+	'#progs/util',
+])
+
+progs_env.Prepend(LIBS = [
+	util,
+])
+
+Export('progs_env')
+
+SConscript([
     'demos/SConscript',
     'glsl/SConscript',
     'redbook/SConscript',
diff --git a/progs/SConstruct b/progs/SConstruct
deleted file mode 100644
index 4d268cc6d7..0000000000
--- a/progs/SConstruct
+++ /dev/null
@@ -1,65 +0,0 @@
-import os
-import os.path
-import sys
-
-env = Environment(
-    tools = ['generic'],
-    toolpath = ['../scons'],
-    ENV = os.environ,
-)
-
-
-# Use Mesa's headers and libs
-if 1:
-    build_topdir = 'build'
-    build_subdir = env['platform']
-    if env['machine'] != 'generic':
-        build_subdir += '-' + env['machine']
-    if env['debug']:
-        build_subdir += "-debug"
-    if env['profile']:
-        build_subdir += "-profile"
-    build_dir = os.path.join(build_topdir, build_subdir)
-
-    env.Append(CPPDEFINES = ['GLEW_STATIC'])
-    env.Append(CPPPATH = ['#../include'])
-    env.Append(LIBPATH = [
-        '#../' + build_dir + '/glew/',
-        '#../' + build_dir + '/glut/glx',
-    ])
-
-
-conf = Configure(env)
-
-# OpenGL
-if env['platform'] == 'windows':
-    env.Prepend(LIBS = ['glu32', 'opengl32'])
-else:
-    env.Prepend(LIBS = ['GLU', 'GL'])
-
-# Glut
-env['GLUT'] = False
-if conf.CheckCHeader('GL/glut.h'):
-    if env['platform'] == 'windows':
-        env['GLUT_LIB'] = 'glut32'
-    else:
-        env['GLUT_LIB'] = 'glut'
-    env['GLUT'] = True
-
-# GLEW
-env['GLEW'] = False
-if conf.CheckCHeader('GL/glew.h'):
-    env['GLEW_LIB'] = 'glew'
-    env['GLEW'] = True
-    env.Prepend(LIBS = ['glew'])
-
-conf.Finish()
-
-
-Export('env')
-
-SConscript(
-    'SConscript',
-    build_dir = env['build'],
-    duplicate = 0 # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
-)
diff --git a/progs/demos/SConscript b/progs/demos/SConscript
index f851870bcf..742dd66f36 100644
--- a/progs/demos/SConscript
+++ b/progs/demos/SConscript
@@ -1,84 +1,66 @@
 Import('*')
 
-if not env['GLUT']:
-    Return()
-
-env = env.Clone()
-
-env.Prepend(CPPPATH = [
-	'../util',
-])
-
-env.Prepend(LIBS = [
-	util,
-	'$GLUT_LIB'
-])
-
-if env['platform'] == 'windows':
-    env.Append(CPPDEFINES = ['NOMINMAX'])
-    env.Prepend(LIBS = ['winmm'])
-
 progs = [
-	'arbfplight',
-	'arbfslight',
-	'arbocclude',
-	'bounce',
-	'clearspd',
-	'copypix',
-	'cubemap',
-	'drawpix',
-	'engine',
-	'fbo_firecube',
-	'fire',
-	'fogcoord',
-	'fplight',
-	'fslight',
-	'gamma',
-	'gearbox',
-	'gears',
-	'geartrain',
-	'glinfo',
-	'gloss',
-	'gltestperf',
-	'ipers',
-	'isosurf',
-	'lodbias',
-	'morph3d',
-	'multiarb',
-	'paltex',
-	'pointblast',
-	'ray',
-	'readpix',
-	'reflect',
-	'renormal',
-	'shadowtex',
-	'singlebuffer',
-	'spectex',
-	'spriteblast',
-	'stex3d',
-	'teapot',
-	'terrain',
-	'tessdemo',
-	'texcyl',
-	'texenv',
-	'textures',
-	'trispd',
-	'tunnel',
-	'tunnel2',
-	'vao_demo',
-	'winpos',
-        'dinoshade',
-        'fbotexture',
-        'projtex',
+    'arbfplight',
+    'arbfslight',
+    'arbocclude',
+    'bounce',
+    'clearspd',
+    'copypix',
+    'cubemap',
+    'drawpix',
+    'engine',
+    'fbo_firecube',
+    'fire',
+    'fogcoord',
+    'fplight',
+    'fslight',
+    'gamma',
+    'gearbox',
+    'gears',
+    'geartrain',
+    'glinfo',
+    'gloss',
+    'gltestperf',
+    'ipers',
+    'isosurf',
+    'lodbias',
+    'morph3d',
+    'multiarb',
+    'paltex',
+    'pointblast',
+    'ray',
+    'readpix',
+    'reflect',
+    'renormal',
+    'shadowtex',
+    'singlebuffer',
+    'spectex',
+    'spriteblast',
+    'stex3d',
+    'teapot',
+    'terrain',
+    'tessdemo',
+    'texcyl',
+    'texenv',
+    'textures',
+    'trispd',
+    'tunnel',
+    'tunnel2',
+    'vao_demo',
+    'winpos',
+    'dinoshade',
+    'fbotexture',
+    'projtex',
 ]
 
 for prog in progs:
-    env.Program(
+    progs_env.Program(
         target = prog,
         source = prog + '.c',
     )
     
-env.Program(
+progs_env.Program(
     target = 'rain',
     source = [
         'rain.cxx',
diff --git a/progs/demos/geartrain.c b/progs/demos/geartrain.c
index d2a195f39a..00b6e78b72 100644
--- a/progs/demos/geartrain.c
+++ b/progs/demos/geartrain.c
@@ -25,6 +25,7 @@
  */
 
 
+#include <assert.h>
 #include <math.h>
 #include <stdlib.h>
 #include <GL/glut.h>
@@ -129,8 +130,10 @@ Clear_Buffers ()
 static void
 LoadTriplet (TDA A)
 {
+    int result;
     Clear_Buffers ();
-    fscanf (mainfile, "%s %s %s %s", Buf1, Buf2, Buf3, Buf4);
+    result = fscanf (mainfile, "%s %s %s %s", Buf1, Buf2, Buf3, Buf4);
+    assert(result != EOF);
     A[0] = atof (Buf2);
     A[1] = atof (Buf3);
     A[2] = atof (Buf4);
@@ -140,8 +143,10 @@ LoadTriplet (TDA A)
 static void
 LoadReal (float *a)
 {
+    int result;
     Clear_Buffers ();
-    fscanf (mainfile, "%s %s", Buf1, Buf2);
+    result = fscanf (mainfile, "%s %s", Buf1, Buf2);
+    assert(result != EOF);
     *a = atof (Buf2);
 }
 
@@ -149,8 +154,10 @@ LoadReal (float *a)
 static void
 LoadInteger (int *a)
 {
+    int result;
     Clear_Buffers ();
-    fscanf (mainfile, "%s %s", Buf1, Buf2);
+    result = fscanf (mainfile, "%s %s", Buf1, Buf2);
+    assert(result != EOF);
     *a = atoi (Buf2);
 }
 
@@ -158,8 +165,10 @@ LoadInteger (int *a)
 static void
 LoadText (char *a)
 {
+    int result;
     Clear_Buffers ();
-    fscanf (mainfile, "%s %s", Buf1, Buf2);
+    result = fscanf (mainfile, "%s %s", Buf1, Buf2);
+    assert(result != EOF);
     strcpy (a, Buf2);
 }
 
@@ -177,8 +186,10 @@ getdata (char filename[])
 
     do
     {
+	int result;
 	Clear_Buffers ();
-	fscanf (mainfile, "%s", Buf1);
+	result = fscanf (mainfile, "%s", Buf1);
+	(void) result;
 	if (ferror (mainfile))
 	{
 	    printf ("\nError opening file !\n");
diff --git a/progs/demos/isosurf.c b/progs/demos/isosurf.c
index 56781f6818..dbe4d8d172 100644
--- a/progs/demos/isosurf.c
+++ b/progs/demos/isosurf.c
@@ -132,9 +132,11 @@ static void read_surface( char *filename )
 
    numverts = 0;
    while (!feof(f) && numverts<maxverts) {
-      fscanf( f, "%f %f %f  %f %f %f",
-	      &data[numverts][0], &data[numverts][1], &data[numverts][2],
-	      &data[numverts][3], &data[numverts][4], &data[numverts][5] );
+      int result;
+      result = fscanf( f, "%f %f %f  %f %f %f",
+	               &data[numverts][0], &data[numverts][1], &data[numverts][2],
+	               &data[numverts][3], &data[numverts][4], &data[numverts][5] );
+      (void) result;
       numverts++;
    }
    numverts--;
diff --git a/progs/demos/terrain.c b/progs/demos/terrain.c
index 627c3bfb57..a72c8d3cae 100644
--- a/progs/demos/terrain.c
+++ b/progs/demos/terrain.c
@@ -8,6 +8,7 @@
  * based on a Mikael SkiZoWalker's (MoDEL) / France (Skizo@Hol.Fr) demo
  */
 
+#include <assert.h>
 #include <stdio.h>
 #include <math.h>
 #include <stdlib.h>
@@ -559,12 +560,14 @@ loadpic(void)
    FILE *FilePic;
    int i, tmp;
    GLenum gluerr;
+   size_t result;
 
    if ((FilePic = fopen("terrain.dat", "r")) == NULL) {
       fprintf(stderr, "Error loading terrain.dat\n");
       exit(-1);
    }
-   fread(bufferter, 256 * 256, 1, FilePic);
+   result = fread(bufferter, 256 * 256, 1, FilePic);
+   assert(result == 1);
    fclose(FilePic);
 
    for (i = 0; i < (256 * 256); i++) {
diff --git a/progs/egl/eglgears.c b/progs/egl/eglgears.c
index 052d0f9e25..2d9b8cac7f 100644
--- a/progs/egl/eglgears.c
+++ b/progs/egl/eglgears.c
@@ -374,7 +374,8 @@ main(int argc, char *argv[])
 	EGLint screenAttribs[10];
 	EGLModeMESA mode[MAX_MODES];
 	EGLScreenMESA screen;
-	EGLint count, chosenMode;
+	EGLint count;
+	EGLint chosenMode = 0;
 	GLboolean printInfo = GL_FALSE;
 	EGLint width = 0, height = 0;
 	
diff --git a/progs/egl/eglscreen.c b/progs/egl/eglscreen.c
index 47b3ce3366..520f76ea03 100644
--- a/progs/egl/eglscreen.c
+++ b/progs/egl/eglscreen.c
@@ -52,7 +52,8 @@ main(int argc, char *argv[])
 	EGLint screenAttribs[10];
 	EGLModeMESA mode[MAX_MODES];
 	EGLScreenMESA screen;
-	EGLint count, chosenMode;
+	EGLint count;
+	EGLint chosenMode = 0;
 	EGLint width = 0, height = 0;
 
 	d = eglGetDisplay(EGL_DEFAULT_DISPLAY);
diff --git a/progs/fp/SConscript b/progs/fp/SConscript
index a78318542c..113e11ab54 100644
--- a/progs/fp/SConscript
+++ b/progs/fp/SConscript
@@ -1,15 +1,4 @@
-Import('env')
-
-if not env['GLUT']:
-    Return()
-
-env = env.Clone()
-
-env.Prepend(CPPPATH = [
-	'../util',
-])
-
-env.Prepend(LIBS = ['$GLUT_LIB'])
+Import('*')
 
 progs = [
     'fp-tri',
@@ -24,7 +13,7 @@ progs = [
 ]
 
 for prog in progs:
-    env.Program(
+    progs_env.Program(
         target = prog,
         source = [prog + '.c'],
     )
diff --git a/progs/glsl/SConscript b/progs/glsl/SConscript
index 7a4549cd70..8f2ebcf69c 100644
--- a/progs/glsl/SConscript
+++ b/progs/glsl/SConscript
@@ -1,23 +1,5 @@
 Import('*')
 
-if not env['GLUT']:
-    Return()
-
-env = env.Clone()
-
-env.Prepend(CPPPATH = [
-	'../util',
-])
-
-env.Prepend(LIBS = [
-	util,
-	'$GLUT_LIB'
-])
-
-if env['platform'] == 'windows':
-    env.Append(CPPDEFINES = ['NOMINMAX'])
-    env.Prepend(LIBS = ['winmm'])
-
 progs = [
       'array',
       'bitmap',
@@ -48,7 +30,7 @@ progs = [
 ]
 
 for prog in progs:
-    env.Program(
+    progs_env.Program(
         target = prog,
         source = prog + '.c',
     )
diff --git a/progs/glsl/shtest.c b/progs/glsl/shtest.c
index 88315d7461..e9800c307f 100644
--- a/progs/glsl/shtest.c
+++ b/progs/glsl/shtest.c
@@ -492,9 +492,8 @@ ReadConfigFile(const char *filename, struct config_file *conf)
    conf->num_uniforms = 0;
 
    /* ugly but functional parser */
-   while (!feof(f)) {
-      fgets(line, sizeof(line), f);
-      if (!feof(f) && line[0]) {
+   while (fgets(line, sizeof(line), f) != NULL) {
+      if (line[0]) {
          if (strncmp(line, "vs ", 3) == 0) {
             VertShaderFile = strdup(line + 3);
             VertShaderFile[strlen(VertShaderFile) - 1] = 0;
diff --git a/progs/glsl/vert-tex.c b/progs/glsl/vert-tex.c
index 4c8bfa587a..2b93c78888 100644
--- a/progs/glsl/vert-tex.c
+++ b/progs/glsl/vert-tex.c
@@ -40,15 +40,6 @@ static GLboolean Anim = GL_TRUE;
 static GLboolean WireFrame = GL_TRUE;
 static GLfloat xRot = -70.0f, yRot = 0.0f, zRot = 0.0f;
 
-
-/* value[0] = tex unit */
-static struct uniform_info Uniforms[] = {
-   { "tex1",  1, GL_SAMPLER_2D, { 0, 0, 0, 0 }, -1 },
-   END_OF_UNIFORMS
-};
-
-
-
 static void
 Idle(void)
 {
diff --git a/progs/objviewer/.gitignore b/progs/objviewer/.gitignore
new file mode 100644
index 0000000000..ff094f833e
--- /dev/null
+++ b/progs/objviewer/.gitignore
@@ -0,0 +1,8 @@
+extfuncs.h
+objview
+readtex.c
+readtex.h
+shaderutil.c
+shaderutil.h
+trackball.c
+trackball.h
diff --git a/progs/perf/SConscript b/progs/perf/SConscript
index a5ec9a7c2a..691478ab64 100644
--- a/progs/perf/SConscript
+++ b/progs/perf/SConscript
@@ -1,11 +1,4 @@
-Import('env')
-
-if not env['GLUT']:
-    Return()
-
-env = env.Clone()
-
-env.Prepend(LIBS = ['$GLUT_LIB'])
+Import('*')
 
 progs = [
       'copytex',
@@ -21,7 +14,7 @@ progs = [
 ]
 
 for prog in progs:
-    env.Program(
+    progs_env.Program(
         target = prog,
         source = [
             prog + '.c',
diff --git a/progs/rbug/simple_server.c b/progs/rbug/simple_server.c
index 04380c3310..3a842c06c4 100644
--- a/progs/rbug/simple_server.c
+++ b/progs/rbug/simple_server.c
@@ -29,7 +29,7 @@
 
 #include "rbug/rbug.h"
 
-static void wait()
+static void rbug_wait()
 {
    int s = u_socket_listen_on_port(13370);
    int c = u_socket_accept(s);
@@ -57,6 +57,6 @@ static void wait()
 
 int main(int argc, char** argv)
 {
-   wait();
+   rbug_wait();
    return 0;
 }
diff --git a/progs/redbook/SConscript b/progs/redbook/SConscript
index 242cb6647f..24d7cff1b6 100644
--- a/progs/redbook/SConscript
+++ b/progs/redbook/SConscript
@@ -1,23 +1,5 @@
 Import('*')
 
-if not env['GLUT']:
-    Return()
-
-env = env.Clone()
-
-env.Prepend(CPPPATH = [
-	'../util',
-])
-
-env.Prepend(LIBS = [
-	util,
-	'$GLUT_LIB'
-])
-
-if env['platform'] == 'windows':
-    env.Append(CPPDEFINES = ['NOMINMAX'])
-    env.Prepend(LIBS = ['winmm'])
-
 progs = [
     'aaindex',
     'aapoly',
@@ -85,7 +67,7 @@ progs = [
 ]
 
 for prog in progs:
-    env.Program(
+    progs_env.Program(
         target = prog,
         source = prog + '.c',
     )
diff --git a/progs/samples/.gitignore b/progs/samples/.gitignore
index f60d6e94ea..c15b886b88 100644
--- a/progs/samples/.gitignore
+++ b/progs/samples/.gitignore
@@ -36,6 +36,7 @@ prim
 quad
 readtex.c
 readtex.h
+rgbtoppm
 select
 shape
 sphere
diff --git a/progs/samples/SConscript b/progs/samples/SConscript
index 7a8a0d62d8..134dfa9980 100644
--- a/progs/samples/SConscript
+++ b/progs/samples/SConscript
@@ -1,23 +1,5 @@
 Import('*')
 
-if not env['GLUT']:
-    Return()
-
-env = env.Clone()
-
-env.Prepend(CPPPATH = [
-	'../util',
-])
-
-env.Prepend(LIBS = [
-	util,
-	'$GLUT_LIB'
-])
-
-if env['platform'] == 'windows':
-    env.Append(CPPDEFINES = ['NOMINMAX'])
-    env.Prepend(LIBS = ['winmm'])
-
 progs = [
     'accum',
     'bitmap1',
@@ -52,7 +34,7 @@ progs = [
 ]
 
 for prog in progs:
-    env.Program(
+    progs_env.Program(
         target = prog,
         source = prog + '.c',
     )
diff --git a/progs/samples/olympic.c b/progs/samples/olympic.c
index 5385e48702..209a8c141b 100644
--- a/progs/samples/olympic.c
+++ b/progs/samples/olympic.c
@@ -74,7 +74,7 @@ int iters[RINGS];
 GLuint theTorus;
 
 
-void FillTorus(float rc, int numc, float rt, int numt)
+static void FillTorus(float rc, int numc, float rt, int numt)
 {
     int i, j, k;
     double s, t;
@@ -106,7 +106,7 @@ void FillTorus(float rc, int numc, float rt, int numt)
     }
 }
 
-float Clamp(int iters_left, float t)
+static float Clamp(int iters_left, float t)
 {
     if (iters_left < 3) {
 	return 0.0;
@@ -114,7 +114,7 @@ float Clamp(int iters_left, float t)
     return (iters_left-2)*t/iters_left;
 }
 
-void DrawScene(void)
+static void DrawScene(void)
 {
     int i, j;
     GLboolean goIdle;
@@ -172,7 +172,7 @@ void DrawScene(void)
     }
 }
 
-float MyRand(void)
+static float MyRand(void)
 {
    return 10.0 * ( (float) rand() / (float) RAND_MAX - 0.5 );
 }
@@ -181,12 +181,12 @@ float MyRand(void)
 #define GLUTCALLBACK
 #endif
 
-void GLUTCALLBACK glut_post_redisplay_p(void)
+static void GLUTCALLBACK glut_post_redisplay_p(void)
 {
       glutPostRedisplay();
 }
 
-void ReInit(void)
+static void ReInit(void)
 {
     int i;
     float deviation;
@@ -206,7 +206,7 @@ void ReInit(void)
     glutIdleFunc(glut_post_redisplay_p);
 }
 
-void Init(void)
+static void Init(void)
 {
     float base, height;
     float aspect, x, y;
@@ -312,13 +312,13 @@ void Init(void)
     glMatrixMode(GL_MODELVIEW);
 }
 
-void Reshape(int width, int height)
+static void Reshape(int width, int height)
 {
 
     glViewport(0, 0, width, height);
 }
 
-void Key(unsigned char key, int x, int y)
+static void Key(unsigned char key, int x, int y)
 {
 
     switch (key) {
@@ -330,7 +330,7 @@ void Key(unsigned char key, int x, int y)
     }
 }
 
-GLenum Args(int argc, char **argv)
+static GLenum Args(int argc, char **argv)
 {
     GLint i;
 
diff --git a/progs/samples/overlay.c b/progs/samples/overlay.c
index 23b5a4793b..6087cef281 100644
--- a/progs/samples/overlay.c
+++ b/progs/samples/overlay.c
@@ -69,19 +69,19 @@ starRec stars[MAXSTARS];
 float sinTable[MAXANGLES];
 
 
-float Sin(float angle)
+static float Sin(float angle)
 {
 
     return (sinTable[(GLint)angle]);
 }
 
-float Cos(float angle)
+static float Cos(float angle)
 {
 
     return (sinTable[((GLint)angle+(MAXANGLES/4))%MAXANGLES]);
 }
 
-void NewStar(GLint n, GLint d)
+static void NewStar(GLint n, GLint d)
 {
 
     if (rand()%4 == 0) {
@@ -103,7 +103,7 @@ void NewStar(GLint n, GLint d)
     }
 }
 
-void RotatePoint(float *x, float *y, float rotation)
+static void RotatePoint(float *x, float *y, float rotation)
 {
     float tmpX, tmpY;
 
@@ -113,7 +113,7 @@ void RotatePoint(float *x, float *y, float rotation)
     *y = tmpY;
 }
 
-void MoveStars(void)
+static void MoveStars(void)
 {
     float offset;
     GLint n;
@@ -134,7 +134,7 @@ void MoveStars(void)
     }
 }
 
-GLenum StarPoint(GLint n)
+static GLenum StarPoint(GLint n)
 {
     float x0, y0, x1, y1, width;
     GLint i;
@@ -182,7 +182,7 @@ GLenum StarPoint(GLint n)
     }
 }
 
-void ShowStars(void)
+static void ShowStars(void)
 {
     GLint n;
 
@@ -221,7 +221,7 @@ static void Init(void)
     glDisable(GL_DITHER);
 }
 
-void Reshape(int width, int height)
+static void Reshape(int width, int height)
 {
 
     windW = (GLint)width;
@@ -262,7 +262,7 @@ static void Key(unsigned char key, int x, int y)
     }
 }
 
-void Idle(void)
+static void Idle(void)
 {
 
     if (overlayInit == GL_FALSE) {
diff --git a/progs/samples/rgbtoppm.c b/progs/samples/rgbtoppm.c
index dcb74228df..403578ef42 100644
--- a/progs/samples/rgbtoppm.c
+++ b/progs/samples/rgbtoppm.c
@@ -3,6 +3,7 @@
 
 /* texload is a simplistic routine for reading an SGI .rgb image file. */
 
+#include <assert.h>
 #include <stdio.h>
 #include <stdlib.h> 
 #include <string.h>
@@ -25,7 +26,7 @@ typedef struct _ImageRec {
     int *rowSize;
 } ImageRec;
 
-void
+static void
 rgbtorgb(unsigned char *r,unsigned char *g,unsigned char *b,unsigned char *l,int n) {
     while(n--) {
         l[0] = r[0];
@@ -72,6 +73,7 @@ static ImageRec *ImageOpen(char *fileName)
     ImageRec *image;
     int swapFlag;
     int x;
+    int result;
 
     endianTest.testWord = 1;
     if (endianTest.testByte[0] == 1) {
@@ -90,7 +92,8 @@ static ImageRec *ImageOpen(char *fileName)
         return NULL;
     }
 
-    fread(image, 1, 12, image->file);
+    result = fread(image, 1, 12, image->file);
+    assert(result == 12);
 
     if (swapFlag) {
         ConvertShort(&image->imagic, 1);
@@ -117,8 +120,10 @@ static ImageRec *ImageOpen(char *fileName)
         }
         image->rleEnd = 512 + (2 * x);
         fseek(image->file, 512, SEEK_SET);
-        fread(image->rowStart, 1, x, image->file);
-        fread(image->rowSize, 1, x, image->file);
+        result = fread(image->rowStart, 1, x, image->file);
+        assert(result == x);
+        result = fread(image->rowSize, 1, x, image->file);
+        assert(result == x);
         if (swapFlag) {
             ConvertUint(image->rowStart, x/(int) sizeof(unsigned));
             ConvertUint((unsigned *)image->rowSize, x/(int) sizeof(int));
@@ -138,11 +143,13 @@ static void
 ImageGetRow(ImageRec *image, unsigned char *buf, int y, int z) {
     unsigned char *iPtr, *oPtr, pixel;
     int count;
+    int result;
 
     if ((image->type & 0xFF00) == 0x0100) {
         fseek(image->file, (long) image->rowStart[y+z*image->ysize], SEEK_SET);
-        fread(image->tmp, 1, (unsigned int)image->rowSize[y+z*image->ysize],
-              image->file);
+        result = fread(image->tmp, 1, (unsigned int)image->rowSize[y+z*image->ysize],
+                       image->file);
+        assert(result == (unsigned int)image->rowSize[y+z*image->ysize]);
 
         iPtr = image->tmp;
         oPtr = buf;
@@ -166,11 +173,13 @@ ImageGetRow(ImageRec *image, unsigned char *buf, int y, int z) {
     } else {
         fseek(image->file, 512+(y*image->xsize)+(z*image->xsize*image->ysize),
               SEEK_SET);
-        fread(buf, 1, image->xsize, image->file);
+        result = fread(buf, 1, image->xsize, image->file);
+        assert(result == image->xsize);
     }
 }
 
-GLubyte *
+#if 0
+static GLubyte *
 read_alpha_texture(char *name, int *width, int *height)
 {
     unsigned char *base, *lptr;
@@ -199,8 +208,9 @@ read_alpha_texture(char *name, int *width, int *height)
 
     return (unsigned char *) base;
 }
+#endif
 
-GLubyte *
+static GLubyte *
 read_rgb_texture(char *name, int *width, int *height)
 {
     unsigned char *base, *ptr;
@@ -261,7 +271,8 @@ read_rgb_texture(char *name, int *width, int *height)
 
 int main(int argc, char **argv)
 {
-	int width, height;
+	int width = 0;
+	int height = 0;
 	GLubyte *data;
         char buff[32];
         int n;
diff --git a/progs/samples/sphere.c b/progs/samples/sphere.c
index 7d0508dee9..23d4fe32c0 100644
--- a/progs/samples/sphere.c
+++ b/progs/samples/sphere.c
@@ -445,7 +445,7 @@ GLfloat identity[16] = {
 };
 
 
-void BuildCylinder(int numEdges)
+static void BuildCylinder(int numEdges)
 {
     int i, top = 1.0, bottom = -1.0;
     float x[100], y[100], angle;
@@ -481,7 +481,7 @@ void BuildCylinder(int numEdges)
     glEndList();
 }
 
-void BuildTorus(float rc, int numc, float rt, int numt)
+static void BuildTorus(float rc, int numc, float rt, int numt)
 {
     int i, j, k;
     double s, t;
@@ -515,7 +515,7 @@ void BuildTorus(float rc, int numc, float rt, int numt)
     glEndList();
 }
 
-void BuildCage(void)
+static void BuildCage(void)
 {
     int i;
     float inc;
@@ -609,7 +609,7 @@ void BuildCage(void)
     glEndList();
 }
 
-void BuildCube(void)
+static void BuildCube(void)
 {
     int i, j;
 
@@ -628,7 +628,7 @@ void BuildCube(void)
     glEndList();
 }
 
-void BuildLists(void)
+static void BuildLists(void)
 {
 
     cube = glGenLists(1);
@@ -646,7 +646,7 @@ void BuildLists(void)
     genericObject = torus;
 }
 
-void SetDefaultSettings(void)
+static void SetDefaultSettings(void)
 {
 
     magFilter = nnearest;
@@ -657,7 +657,7 @@ void SetDefaultSettings(void)
     autoRotate = GL_TRUE;
 }
 
-unsigned char *AlphaPadImage(int bufSize, unsigned char *inData, int alpha)
+static unsigned char *AlphaPadImage(int bufSize, unsigned char *inData, int alpha)
 {
     unsigned char *outData, *out_ptr, *in_ptr;
     int i;
@@ -677,7 +677,7 @@ unsigned char *AlphaPadImage(int bufSize, unsigned char *inData, int alpha)
     return outData;
 }
 
-void Init(void)
+static void Init(void)
 {
     float ambient[] = {0.0, 0.0, 0.0, 1.0};
     float diffuse[] = {1.0, 1.0, 1.0, 1.0};
@@ -753,7 +753,7 @@ void Init(void)
     BuildLists();
 }
 
-void ReInit(void)
+static void ReInit(void)
 {
     if (genericObject == torus) {
 	glEnable(GL_DEPTH_TEST);
@@ -773,7 +773,7 @@ void ReInit(void)
     glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, textureEnvironment);
 }
 
-void Draw(void)
+static void Draw(void)
 {
     glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
 
@@ -806,7 +806,7 @@ void Draw(void)
     glutSwapBuffers();
 }
 
-void Reshape(int width, int height)
+static void Reshape(int width, int height)
 {
     W = width;
     H = height;
@@ -818,7 +818,7 @@ void Reshape(int width, int height)
     glMatrixMode(GL_MODELVIEW);
 }
 
-void Idle(void)
+static void Idle(void)
 {
    static double t0 = -1.;
    double t, dt;
@@ -833,7 +833,7 @@ void Idle(void)
    glutPostRedisplay();
 }
 
-void Key2(int key, int x, int y)
+static void Key2(int key, int x, int y)
 {
 
     switch (key) {
@@ -863,7 +863,7 @@ void Key2(int key, int x, int y)
     glutPostRedisplay();
 }
 
-void Key(unsigned char key, int x, int y)
+static void Key(unsigned char key, int x, int y)
 {
 
     switch (key) {
@@ -950,7 +950,7 @@ void Key(unsigned char key, int x, int y)
     glutPostRedisplay();
 }
 
-GLenum Args(int argc, char **argv)
+static GLenum Args(int argc, char **argv)
 {
     GLint i;
 
diff --git a/progs/samples/star.c b/progs/samples/star.c
index 2cf470e2a2..2c44ebfd49 100644
--- a/progs/samples/star.c
+++ b/progs/samples/star.c
@@ -67,19 +67,19 @@ starRec stars[MAXSTARS];
 float sinTable[MAXANGLES];
 
 
-float Sin(float angle)
+static float Sin(float angle)
 {
 
     return (sinTable[(GLint)angle]);
 }
 
-float Cos(float angle)
+static float Cos(float angle)
 {
 
     return (sinTable[((GLint)angle+(MAXANGLES/4))%MAXANGLES]);
 }
 
-void NewStar(GLint n, GLint d)
+static void NewStar(GLint n, GLint d)
 {
 
     if (rand()%4 == 0) {
@@ -101,7 +101,7 @@ void NewStar(GLint n, GLint d)
     }
 }
 
-void RotatePoint(float *x, float *y, float rotation)
+static void RotatePoint(float *x, float *y, float rotation)
 {
     float tmpX, tmpY;
 
@@ -111,7 +111,7 @@ void RotatePoint(float *x, float *y, float rotation)
     *y = tmpY;
 }
 
-void MoveStars(void)
+static void MoveStars(void)
 {
     float offset;
     GLint n;
@@ -142,7 +142,7 @@ void MoveStars(void)
     }
 }
 
-GLenum StarPoint(GLint n)
+static GLenum StarPoint(GLint n)
 {
     float x0, y0, x1, y1, width;
     GLint i;
@@ -190,7 +190,7 @@ GLenum StarPoint(GLint n)
     }
 }
 
-void ShowStars(void)
+static void ShowStars(void)
 {
     GLint n;
 
@@ -229,7 +229,7 @@ static void Init(void)
     glDisable(GL_DITHER);
 }
 
-void Reshape(int width, int height)
+static void Reshape(int width, int height)
 {
 
     windW = (GLint)width;
@@ -260,7 +260,7 @@ static void Key(unsigned char key, int x, int y)
     }
 }
 
-void Draw(void)
+static void Draw(void)
 {
 
     MoveStars();
@@ -307,7 +307,7 @@ static GLenum Args(int argc, char **argv)
 #define GLUTCALLBACK
 #endif
 
-void GLUTCALLBACK glut_post_redisplay_p(void)
+static void GLUTCALLBACK glut_post_redisplay_p(void)
 {
       glutPostRedisplay();
 }
diff --git a/progs/samples/stretch.c b/progs/samples/stretch.c
index 1fd015d794..11201dca23 100644
--- a/progs/samples/stretch.c
+++ b/progs/samples/stretch.c
@@ -67,7 +67,7 @@ int cCount, cIndex[2], cStep;
 GLenum op = OP_NOOP;
 
 
-void DrawImage(void)
+static void DrawImage(void)
 {
 
     glRasterPos2i(0, 0);
@@ -84,7 +84,7 @@ void DrawImage(void)
 		 image->data);
 }
 
-void DrawPoint(void)
+static void DrawPoint(void)
 {
     int i;
 
@@ -102,7 +102,7 @@ void DrawPoint(void)
     }
 }
 
-void InitVList(void)
+static void InitVList(void)
 {
 
     vList[0].x = 0.0;
@@ -141,7 +141,7 @@ void InitVList(void)
     vList[4].tY = cList[0].y / (float)imageSizeY;
 }
 
-void ScaleImage(int sizeX, int sizeY)
+static void ScaleImage(int sizeX, int sizeY)
 {
     GLubyte *buf;
 
@@ -154,7 +154,7 @@ void ScaleImage(int sizeX, int sizeY)
     image->sizeY = sizeY;
 }
 
-void SetPoint(int x, int y)
+static void SetPoint(int x, int y)
 {
 
     cList[cCount].x = (float)x;
@@ -162,7 +162,7 @@ void SetPoint(int x, int y)
     cCount++;
 }
 
-void Stretch(void)
+static void Stretch(void)
 {
 
     glBegin(GL_TRIANGLES);
@@ -221,7 +221,7 @@ void Stretch(void)
     }
 }
 
-void Key(unsigned char key, int x, int y)
+static void Key(unsigned char key, int x, int y)
 {
 
     switch (key) {
@@ -245,7 +245,7 @@ void Key(unsigned char key, int x, int y)
     glutPostRedisplay();
 }
 
-void Mouse(int button, int state, int mouseX, int mouseY)
+static void Mouse(int button, int state, int mouseX, int mouseY)
 {
 
     if (state != GLUT_DOWN)
@@ -263,7 +263,7 @@ void Mouse(int button, int state, int mouseX, int mouseY)
     glutPostRedisplay();
 }
 
-void Animate(void)
+static void Animate(void)
 {
     static double t0 = -1.;
     double t, dt;
@@ -322,7 +322,7 @@ static GLenum Args(int argc, char **argv)
 #define GLUTCALLBACK
 #endif
 
-void GLUTCALLBACK glut_post_redisplay_p(void)
+static void GLUTCALLBACK glut_post_redisplay_p(void)
 {
       glutPostRedisplay();
 }
diff --git a/progs/samples/wave.c b/progs/samples/wave.c
index d3c4687459..396a6943e3 100644
--- a/progs/samples/wave.c
+++ b/progs/samples/wave.c
@@ -92,7 +92,7 @@ GLubyte contourTexture2[] = {
 #endif
 
 
-void GLUTCALLBACK glut_post_redisplay_p(void)
+static void GLUTCALLBACK glut_post_redisplay_p(void)
 {
     static double t0 = -1.;
     double t, dt;
diff --git a/progs/tests/Makefile b/progs/tests/Makefile
index 3e2541186b..836396b249 100644
--- a/progs/tests/Makefile
+++ b/progs/tests/Makefile
@@ -37,10 +37,12 @@ SOURCES = \
 	bug_3195.c \
 	bug_texstore_i8.c \
 	calibrate_rast.c \
+	condrender.c \
 	copypixrate.c \
 	crossbar.c \
 	cva.c \
 	drawbuffers.c \
+	drawbuffers2.c \
 	exactrast.c \
 	ext422square.c \
 	floattex.c \
diff --git a/progs/tests/SConscript b/progs/tests/SConscript
index 3a0da62717..e2c6538288 100644
--- a/progs/tests/SConscript
+++ b/progs/tests/SConscript
@@ -1,23 +1,5 @@
 Import('*')
 
-if not env['GLUT']:
-    Return()
-
-env = env.Clone()
-
-env.Prepend(CPPPATH = [
-	'../util',
-])
-
-env.Prepend(LIBS = [
-	util,
-	'$GLUT_LIB'
-])
-
-if env['platform'] == 'windows':
-    env.Append(CPPDEFINES = ['NOMINMAX'])
-    env.Prepend(LIBS = ['winmm'])
-
 linux_progs = [
     'api_speed',
 ]
@@ -59,10 +41,12 @@ progs = [
     'bug_3195',
     'bug_texstore_i8',
     'calibrate_rast',
+    'condrender',
     'copypixrate',
     'crossbar',
     'cva',
     'drawbuffers',
+    'drawbuffers2',
     'exactrast',
     'ext422square',
     'fbotest1',
@@ -138,7 +122,7 @@ progs = [
 ]
 
 for prog in progs:
-    env.Program(
+    progs_env.Program(
         target = prog,
         source = prog + '.c',
     )
diff --git a/progs/tests/condrender.c b/progs/tests/condrender.c
new file mode 100644
index 0000000000..1db8a7c15a
--- /dev/null
+++ b/progs/tests/condrender.c
@@ -0,0 +1,242 @@
+/*
+ * Test GL_NV_conditional_render
+ *
+ * Brian Paul
+ * 30 Dec 2009
+ *
+ * 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
+ * THE AUTHORS 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.
+ */
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <GL/glew.h>
+#include <GL/glut.h>
+
+#define TEST_DISPLAY_LISTS 0
+
+static GLboolean Anim = GL_TRUE;
+static GLfloat Xpos = 0;
+static GLuint OccQuery;
+static GLint Win = 0;
+
+
+static void Idle(void)
+{
+   static int lastTime = 0;
+   static int sign = +1;
+   int time = glutGet(GLUT_ELAPSED_TIME);
+   float step;
+
+   if (lastTime == 0)
+      lastTime = time;
+   else if (time - lastTime < 20)  /* 50Hz update */
+      return;
+
+   step = (time - lastTime) / 1000.0 * sign;
+   lastTime = time;
+
+   Xpos += step;
+
+   if (Xpos > 2.5) {
+      Xpos = 2.5;
+      sign = -1;
+   }
+   else if (Xpos < -2.5) {
+      Xpos = -2.5;
+      sign = +1;
+   }
+   glutPostRedisplay();
+}
+
+
+static void Display( void )
+{
+   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+
+   glEnable(GL_DEPTH_TEST);
+
+   glMatrixMode( GL_PROJECTION );
+   glLoadIdentity();
+   glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 );
+   glMatrixMode( GL_MODELVIEW );
+   glLoadIdentity();
+   glTranslatef( 0.0, 0.0, -15.0 );
+
+   /* draw the occluding polygons */
+   glColor3f(0, 0.6, 0.8);
+   glBegin(GL_QUADS);
+   glVertex2f(-1.6, -1.5);
+   glVertex2f(-0.4, -1.5);
+   glVertex2f(-0.4,  1.5);
+   glVertex2f(-1.6,  1.5);
+
+   glVertex2f( 0.4, -1.5);
+   glVertex2f( 1.6, -1.5);
+   glVertex2f( 1.6,  1.5);
+   glVertex2f( 0.4,  1.5);
+   glEnd();
+
+   /* draw the test polygon with occlusion testing */
+   glPushMatrix();
+   glTranslatef(Xpos, 0, -0.5);
+   glScalef(0.3, 0.3, 1.0);
+   glRotatef(-90.0 * Xpos, 0, 0, 1);
+
+#if TEST_DISPLAY_LISTS
+   glNewList(10, GL_COMPILE);
+   glBeginQueryARB(GL_SAMPLES_PASSED_ARB, OccQuery);
+   glEndList();
+   glCallList(10);
+#else
+   glBeginQueryARB(GL_SAMPLES_PASSED_ARB, OccQuery);
+#endif
+
+   glColorMask(0, 0, 0, 0);
+   glDepthMask(GL_FALSE);
+
+   glBegin(GL_POLYGON);
+   glVertex3f(-1, -1, 0);
+   glVertex3f( 1, -1, 0);
+   glVertex3f( 1,  1, 0);
+   glVertex3f(-1,  1, 0);
+   glEnd();
+
+#if TEST_DISPLAY_LISTS
+   glNewList(11, GL_COMPILE);
+   glEndQueryARB(GL_SAMPLES_PASSED_ARB);
+   glEndList();
+   glCallList(11);
+#else
+   glEndQueryARB(GL_SAMPLES_PASSED_ARB);
+#endif
+
+   glColorMask(1, 1, 1, 1);
+   glDepthMask(GL_TRUE);
+
+   /* Note: disable depth test here so that we'll always see the orange
+    * box, except when it's totally culled.
+    */
+   glDisable(GL_DEPTH_TEST);
+
+   glBeginConditionalRenderNV(OccQuery, GL_QUERY_WAIT_NV);
+      /* draw the orange rect, so we can see what's going on */
+      glColor3f(0.8, 0.5, 0);
+      glBegin(GL_POLYGON);
+         glVertex3f(-1, -1, 0);
+         glVertex3f( 1, -1, 0);
+         glVertex3f( 1,  1, 0);
+         glVertex3f(-1,  1, 0);
+      glEnd();
+   glEndConditionalRenderNV();
+
+   /* always draw white outline around orange box */
+   glColor3f(1.0, 1.0, 1.0);
+   glBegin(GL_LINE_LOOP);
+      glVertex3f(-1, -1, 0);
+      glVertex3f( 1, -1, 0);
+      glVertex3f( 1,  1, 0);
+       glVertex3f(-1,  1, 0);
+   glEnd();
+
+   glPopMatrix();
+
+   glutSwapBuffers();
+}
+
+
+static void Reshape( int width, int height )
+{
+   glViewport( 0, 0, width, height );
+}
+
+
+static void Key( unsigned char key, int x, int y )
+{
+   (void) x;
+   (void) y;
+   switch (key) {
+   case 27:
+      glDeleteQueriesARB(1, &OccQuery);
+      glutDestroyWindow(Win);
+      exit(0);
+      break;
+   case ' ':
+      Anim = !Anim;
+      if (Anim)
+         glutIdleFunc(Idle);
+      else
+         glutIdleFunc(NULL);
+      break;
+   }
+   glutPostRedisplay();
+}
+
+
+static void SpecialKey( int key, int x, int y )
+{
+   const GLfloat step = 0.1;
+   (void) x;
+   (void) y;
+   switch (key) {
+   case GLUT_KEY_LEFT:
+      Xpos -= step;
+      break;
+   case GLUT_KEY_RIGHT:
+      Xpos += step;
+      break;
+   }
+   glutPostRedisplay();
+}
+
+
+static void Init( void )
+{
+   if (!glutExtensionSupported("GL_ARB_occlusion_query") ||
+       !glutExtensionSupported("GL_NV_conditional_render")) {
+      printf("Sorry, this demo requires the extensions:\n");
+      printf("  GL_ARB_occlusion_query\n");
+      printf("  GL_NV_conditional_render\n");
+      exit(-1);
+   }
+
+   glGenQueriesARB(1, &OccQuery);
+   assert(OccQuery > 0);
+}
+
+
+int main( int argc, char *argv[] )
+{
+   glutInitWindowSize( 400, 400 );
+   glutInit( &argc, argv );
+   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
+   Win = glutCreateWindow(argv[0]);
+   glewInit();
+   glutReshapeFunc( Reshape );
+   glutKeyboardFunc( Key );
+   glutSpecialFunc( SpecialKey );
+   glutIdleFunc( Idle );
+   glutDisplayFunc( Display );
+   Init();
+   glutMainLoop();
+   return 0;
+}
diff --git a/progs/tests/drawbuffers2.c b/progs/tests/drawbuffers2.c
new file mode 100644
index 0000000000..7b8cc5ca6a
--- /dev/null
+++ b/progs/tests/drawbuffers2.c
@@ -0,0 +1,364 @@
+/*
+ * Test GL_ARB_draw_buffers2, GL_ARB_draw_buffers, GL_EXT_framebuffer_object
+ * and GLSL's gl_FragData[].
+ *
+ * We draw to two color buffers and show the left half of the first
+ * color buffer on the left side of the window, and show the right
+ * half of the second color buffer on the right side of the window.
+ *
+ * Different color masks are used for the two color buffers.
+ * Blending is enabled for the second buffer only.
+ *
+ * Brian Paul
+ * 31 Dec 2009
+ */
+
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <GL/glew.h>
+#include <GL/glut.h>
+#include "extfuncs.h"
+
+static int Win;
+static int Width = 400, Height = 400;
+static GLuint FBobject, RBobjects[3];
+static GLfloat Xrot = 0.0, Yrot = 0.0;
+static GLuint Program;
+static GLboolean Anim = GL_TRUE;
+
+
+static void
+CheckError(int line)
+{
+   GLenum err = glGetError();
+   if (err) {
+      printf("GL Error 0x%x at line %d\n", (int) err, line);
+   }
+}
+
+
+static void
+Display(void)
+{
+   GLubyte *buffer = malloc(Width * Height * 4);
+   static const GLenum buffers[2] = {
+      GL_COLOR_ATTACHMENT0_EXT,
+      GL_COLOR_ATTACHMENT1_EXT
+   };
+
+   glUseProgram_func(Program);
+
+   glEnable(GL_DEPTH_TEST);
+
+   /* draw to user framebuffer */
+   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, FBobject);
+
+   /* Clear color buffer 0 (blue) */
+   glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
+   glClear(GL_COLOR_BUFFER_BIT);
+
+   /* Clear color buffer 1 (1 - blue) */
+   glDrawBuffer(GL_COLOR_ATTACHMENT1_EXT);
+   glClear(GL_COLOR_BUFFER_BIT);
+
+   glClear(GL_DEPTH_BUFFER_BIT);
+
+   /* draw to two buffers w/ fragment shader */
+   glDrawBuffersARB(2, buffers);
+
+   /* different color masks for each buffer */
+   if (1) {
+   glColorMaskIndexedEXT(0, GL_TRUE, GL_FALSE, GL_FALSE, GL_FALSE);
+   glColorMaskIndexedEXT(1, GL_FALSE, GL_TRUE, GL_FALSE, GL_FALSE);
+   }
+
+   glPushMatrix();
+   glRotatef(Xrot, 1, 0, 0);
+   glRotatef(Yrot, 0, 1, 0);
+   glPushMatrix();
+   glTranslatef(1, 0, 0);
+   glutSolidTorus(1.0, 2.0, 10, 20);
+   glPopMatrix();
+   glPushMatrix();
+   glTranslatef(-1, 0, 0);
+   glRotatef(90, 1, 0, 0);
+   glutSolidTorus(1.0, 2.0, 10, 20);
+   glPopMatrix();
+   glPopMatrix();
+
+   /* restore default color masks */
+   glColorMaskIndexedEXT(0, GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+   glColorMaskIndexedEXT(1, GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+
+   /* read from user framebuffer */
+   /* left half = colorbuffer 0 */
+   glReadBuffer(GL_COLOR_ATTACHMENT0_EXT);
+   glPixelStorei(GL_PACK_ROW_LENGTH, Width);
+   glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
+   glReadPixels(0, 0, Width / 2, Height, GL_RGBA, GL_UNSIGNED_BYTE,
+                buffer);
+
+   /* right half = colorbuffer 1 */
+   glReadBuffer(GL_COLOR_ATTACHMENT1_EXT);
+   glPixelStorei(GL_PACK_SKIP_PIXELS, Width / 2);
+   glReadPixels(Width / 2, 0, Width - Width / 2, Height,
+                GL_RGBA, GL_UNSIGNED_BYTE,
+                buffer);
+
+   /* draw to window */
+   glUseProgram_func(0);
+   glDisable(GL_DEPTH_TEST);
+   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+   glWindowPos2iARB(0, 0);
+   glDrawPixels(Width, Height, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
+
+   free(buffer);
+   glutSwapBuffers();
+   CheckError(__LINE__);
+}
+
+
+static void
+Idle(void)
+{
+   Xrot = glutGet(GLUT_ELAPSED_TIME) * 0.05;
+   glutPostRedisplay();
+}
+
+
+static void
+Reshape(int width, int height)
+{
+   float ar = (float) width / (float) height;
+
+   glViewport(0, 0, width, height);
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+   glFrustum(-ar, ar, -1.0, 1.0, 5.0, 35.0);
+   glMatrixMode(GL_MODELVIEW);
+   glLoadIdentity();
+   glTranslatef(0.0, 0.0, -20.0);
+
+   Width = width;
+   Height = height;
+
+   glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, RBobjects[0]);
+   glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGB, Width, Height);
+   glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, RBobjects[1]);
+   glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGB, Width, Height);
+   glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, RBobjects[2]);
+   glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT,
+                            Width, Height);
+}
+
+
+static void
+CleanUp(void)
+{
+   glDeleteFramebuffersEXT(1, &FBobject);
+   glDeleteRenderbuffersEXT(3, RBobjects);
+   glutDestroyWindow(Win);
+   exit(0);
+}
+
+
+static void
+Key(unsigned char key, int x, int y)
+{
+   (void) x;
+   (void) y;
+   switch (key) {
+   case ' ':
+      Anim = !Anim;
+      glutIdleFunc(Anim ? Idle : NULL);
+      break;
+   case 'x':
+      Xrot += 5.0;
+      break;
+   case 'X':
+      Xrot -= 5.0;
+      break;
+   case 'y':
+      Yrot += 5.0;
+      break;
+   case 'Y':
+      Yrot -= 5.0;
+      break;
+   case 27:
+      CleanUp();
+      break;
+   }
+   glutPostRedisplay();
+}
+
+
+static void
+CheckExtensions(void)
+{
+   const char *req[] = {
+      "GL_EXT_framebuffer_object",
+      "GL_ARB_draw_buffers",
+      "GL_EXT_draw_buffers2"
+   };
+
+   const char *version = (const char *) glGetString(GL_VERSION);
+   GLint numBuf;
+   GLint i;
+
+   for (i = 0; i < 3; i++) {
+      if (!glutExtensionSupported(req[i])) {
+         printf("Sorry, %s extension is required!\n", req[i]);
+         exit(1);
+      }
+   }
+   if (version[0] != '2') {
+      printf("Sorry, OpenGL 2.0 is required!\n");
+      exit(1);
+   }
+
+   glGetIntegerv(GL_MAX_DRAW_BUFFERS_ARB, &numBuf);
+   printf("GL_MAX_DRAW_BUFFERS_ARB = %d\n", numBuf);
+   if (numBuf < 2) {
+      printf("Sorry, GL_MAX_DRAW_BUFFERS_ARB needs to be >= 2\n");
+      exit(1);
+   }
+
+   printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+}
+
+
+static void
+SetupRenderbuffers(void)
+{
+   glGenFramebuffersEXT(1, &FBobject);
+   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, FBobject);
+
+   glGenRenderbuffersEXT(3, RBobjects);
+
+   glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, RBobjects[0]);
+   glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGB, Width, Height);
+
+   glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, RBobjects[1]);
+   glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGB, Width, Height);
+
+   glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, RBobjects[2]);
+   glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT,
+                            Width, Height);
+
+   glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
+                                GL_RENDERBUFFER_EXT, RBobjects[0]);
+   glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT,
+                                GL_RENDERBUFFER_EXT, RBobjects[1]);
+   glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT,
+                                GL_RENDERBUFFER_EXT, RBobjects[2]);
+
+   CheckError(__LINE__);
+}
+
+
+static GLuint
+LoadAndCompileShader(GLenum target, const char *text)
+{
+   GLint stat;
+   GLuint shader = glCreateShader_func(target);
+   glShaderSource_func(shader, 1, (const GLchar **) &text, NULL);
+   glCompileShader_func(shader);
+   glGetShaderiv_func(shader, GL_COMPILE_STATUS, &stat);
+   if (!stat) {
+      GLchar log[1000];
+      GLsizei len;
+      glGetShaderInfoLog_func(shader, 1000, &len, log);
+      fprintf(stderr, "drawbuffers: problem compiling shader:\n%s\n", log);
+      exit(1);
+   }
+   return shader;
+}
+
+
+static void
+CheckLink(GLuint prog)
+{
+   GLint stat;
+   glGetProgramiv_func(prog, GL_LINK_STATUS, &stat);
+   if (!stat) {
+      GLchar log[1000];
+      GLsizei len;
+      glGetProgramInfoLog_func(prog, 1000, &len, log);
+      fprintf(stderr, "drawbuffers: shader link error:\n%s\n", log);
+   }
+}
+
+
+static void
+SetupShaders(void)
+{
+   /* emit same color to both draw buffers */
+   static const char *fragShaderText =
+      "void main() {\n"
+      "   gl_FragData[0] = gl_Color; \n"
+      "   gl_FragData[1] = gl_Color; \n"
+      "}\n";
+
+   GLuint fragShader;
+
+   fragShader = LoadAndCompileShader(GL_FRAGMENT_SHADER, fragShaderText);
+   Program = glCreateProgram_func();
+
+   glAttachShader_func(Program, fragShader);
+   glLinkProgram_func(Program);
+   CheckLink(Program);
+   glUseProgram_func(Program);
+}
+
+
+static void
+SetupLighting(void)
+{
+   static const GLfloat ambient[4] = { 0.0, 0.0, 0.0, 0.0 };
+   static const GLfloat diffuse[4] = { 1.0, 1.0, 1.0, 0.75 };
+
+   glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambient);
+   glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, ambient);
+   glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, diffuse);
+
+   glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, 0);
+   glEnable(GL_LIGHT0);
+   glEnable(GL_LIGHTING);
+}
+
+
+static void
+Init(void)
+{
+   CheckExtensions();
+   GetExtensionFuncs();
+   SetupRenderbuffers();
+   SetupShaders();
+   SetupLighting();
+   glEnable(GL_DEPTH_TEST);
+
+   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+   glEnableIndexedEXT(GL_BLEND, 1);
+}
+
+
+int
+main(int argc, char *argv[])
+{
+   glutInit(&argc, argv);
+   glutInitWindowPosition(0, 0);
+   glutInitWindowSize(Width, Height);
+   glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
+   Win = glutCreateWindow(argv[0]);
+   glewInit();
+   glutIdleFunc(Anim ? Idle : NULL);
+   glutReshapeFunc(Reshape);
+   glutKeyboardFunc(Key);
+   glutDisplayFunc(Display);
+   Init();
+   glutMainLoop();
+   return 0;
+}
diff --git a/progs/tests/getprocaddress.c b/progs/tests/getprocaddress.c
index b905eeaf81..e699baf44b 100644
--- a/progs/tests/getprocaddress.c
+++ b/progs/tests/getprocaddress.c
@@ -1188,7 +1188,7 @@ exercise_buffer_objects(enum Map_Buffer_Usage usage)
    GLuint bufferID;
    GLint bufferMapped;
    static GLubyte data[BUFFER_DATA_SIZE] = {0};
-   float *dataPtr;
+   float *dataPtr = NULL;
 
    /* Get the function pointers we need.  These are from
     * GL_ARB_vertex_buffer_object and are required in all
diff --git a/progs/tests/vparray.c b/progs/tests/vparray.c
index af9b62d33e..fe168c6cd5 100644
--- a/progs/tests/vparray.c
+++ b/progs/tests/vparray.c
@@ -37,13 +37,16 @@ static void read_surface( char *filename )
    }
 
    numverts = 0;
-   while (!feof(f) && numverts < MAXVERTS) {
-      fscanf( f, "%f %f %f  %f %f %f",
-	      &data[numverts][0], &data[numverts][1], &data[numverts][2],
-	      &data[numverts][3], &data[numverts][4], &data[numverts][5] );
+   while (numverts < MAXVERTS) {
+      int result;
+      result = fscanf( f, "%f %f %f  %f %f %f",
+	               &data[numverts][0], &data[numverts][1], &data[numverts][2],
+	               &data[numverts][3], &data[numverts][4], &data[numverts][5] );
+      if (result == EOF) {
+         break;
+      }
       numverts++;
    }
-   numverts--;
 
    printf("%d vertices, %d triangles\n", numverts, numverts-2);
    printf("data = %p\n", (void *) data);
diff --git a/progs/trivial/SConscript b/progs/trivial/SConscript
index 9a1f3575bd..613383c77b 100644
--- a/progs/trivial/SConscript
+++ b/progs/trivial/SConscript
@@ -1,11 +1,4 @@
-Import('env')
-
-if not env['GLUT']:
-    Return()
-
-env = env.Clone()
-
-env.Prepend(LIBS = ['$GLUT_LIB'])
+Import('*')
 
 progs = [
     'clear-fbo-tex',
@@ -154,7 +147,7 @@ progs = [
 ]
 
 for prog in progs:
-    prog = env.Program(
+    prog = progs_env.Program(
         target = prog,
         source = prog + '.c',
     )
diff --git a/progs/util/readtex.c b/progs/util/readtex.c
index d1c50a494a..f6f511481c 100644
--- a/progs/util/readtex.c
+++ b/progs/util/readtex.c
@@ -9,6 +9,7 @@
 
 #include <GL/gl.h>
 #include <GL/glu.h>
+#include <assert.h>
 #include <stdio.h>
 #include <stdlib.h> 
 #include <string.h>
@@ -89,6 +90,7 @@ static rawImageRec *RawImageOpen(const char *fileName)
    rawImageRec *raw;
    GLenum swapFlag;
    int x;
+   size_t result;
 
    endianTest.testWord = 1;
    if (endianTest.testByte[0] == 1) {
@@ -114,7 +116,8 @@ static rawImageRec *RawImageOpen(const char *fileName)
       }
    }
 
-   fread(raw, 1, 12, raw->file);
+   result = fread(raw, 1, 12, raw->file);
+   assert(result == 12);
 
    if (swapFlag) {
       ConvertShort(&raw->imagic, 1);
@@ -162,8 +165,10 @@ static rawImageRec *RawImageOpen(const char *fileName)
       }
       raw->rleEnd = 512 + (2 * x);
       fseek(raw->file, 512, SEEK_SET);
-      fread(raw->rowStart, 1, x, raw->file);
-      fread(raw->rowSize, 1, x, raw->file);
+      result = fread(raw->rowStart, 1, x, raw->file);
+      assert(result == x);
+      result = fread(raw->rowSize, 1, x, raw->file);
+      assert(result == x);
       if (swapFlag) {
          ConvertLong(raw->rowStart, (long) (x/sizeof(GLuint)));
          ConvertLong((GLuint *)raw->rowSize, (long) (x/sizeof(GLint)));
@@ -193,11 +198,13 @@ static void RawImageGetRow(rawImageRec *raw, unsigned char *buf, int y, int z)
 {
    unsigned char *iPtr, *oPtr, pixel;
    int count, done = 0;
+   size_t result;
 
    if ((raw->type & 0xFF00) == 0x0100) {
       fseek(raw->file, (long) raw->rowStart[y+z*raw->sizeY], SEEK_SET);
-      fread(raw->tmp, 1, (unsigned int)raw->rowSize[y+z*raw->sizeY],
-            raw->file);
+      result = fread(raw->tmp, 1, (unsigned int)raw->rowSize[y+z*raw->sizeY],
+                     raw->file);
+      assert(result == (unsigned int)raw->rowSize[y+z*raw->sizeY]);
       
       iPtr = raw->tmp;
       oPtr = buf;
@@ -222,7 +229,8 @@ static void RawImageGetRow(rawImageRec *raw, unsigned char *buf, int y, int z)
    } else {
       fseek(raw->file, 512+(y*raw->sizeX)+(z*raw->sizeX*raw->sizeY),
             SEEK_SET);
-      fread(buf, 1, raw->sizeX, raw->file);
+      result = fread(buf, 1, raw->sizeX, raw->file);
+      assert(result == raw->sizeX);
    }
 }
 
diff --git a/progs/vp/SConscript b/progs/vp/SConscript
index 640c5dd847..787cb793af 100644
--- a/progs/vp/SConscript
+++ b/progs/vp/SConscript
@@ -1,13 +1,6 @@
-Import('env')
+Import('*')
 
-if not env['GLUT']:
-    Return()
-
-env = env.Clone()
-
-env.Prepend(LIBS = ['$GLUT_LIB'])
-
-env.Program(
+progs_env.Program(
         target = 'vp-tris',
         source = ['vp-tris.c'],
     )
diff --git a/progs/vp/vp-tris.c b/progs/vp/vp-tris.c
index 29cd027b00..09236c296f 100644
--- a/progs/vp/vp-tris.c
+++ b/progs/vp/vp-tris.c
@@ -96,7 +96,8 @@ static void Init( void )
       exit(1);
    }
 
-   sz = (GLuint) fread(buf, 1, sizeof(buf), f);
+   sz = (GLuint) fread(buf, 1, sizeof(buf) - 1, f);
+   buf[sizeof(buf) - 1] = '\0';
    if (!feof(f)) {
       fprintf(stderr, "file too long\n");
       fclose(f);
diff --git a/progs/vpglsl/SConscript b/progs/vpglsl/SConscript
index 640c5dd847..787cb793af 100644
--- a/progs/vpglsl/SConscript
+++ b/progs/vpglsl/SConscript
@@ -1,13 +1,6 @@
-Import('env')
+Import('*')
 
-if not env['GLUT']:
-    Return()
-
-env = env.Clone()
-
-env.Prepend(LIBS = ['$GLUT_LIB'])
-
-env.Program(
+progs_env.Program(
         target = 'vp-tris',
         source = ['vp-tris.c'],
     )
diff --git a/progs/wgl/SConscript b/progs/wgl/SConscript
index 31f61676de..248cc53a8d 100644
--- a/progs/wgl/SConscript
+++ b/progs/wgl/SConscript
@@ -1,25 +1,17 @@
 Import('*')
 
-if env['platform'] != 'windows':
+if progs_env['platform'] != 'windows':
     Return()
 
-env = env.Clone()
-
-env.Append(LIBS = [
-    'kernel32',
-    'user32',
-    'gdi32',
-])
-
 progs = [
     'sharedtex_mt',
     'wglthreads',
 ]
 
 for prog in progs:
-    env.Program(
+    progs_env.Program(
         target = prog,
         source = prog + '/' + prog + '.c',
     )
 
-env.Program('wglinfo', ['wglinfo.c'])
+progs_env.Program('wglinfo', ['wglinfo.c'])