added color4 test

glow @ b8e35932

-Subproject commit 7bdd20e13f1dc1d824a339d3fb4eba1e2dc8dd4b
+Subproject commit b8e3593231651b03257456ed820e624e04bde003

glow-extras @ a206c554

-Subproject commit 65a7989156d719fb592c3291d08b8b6f2c657763
+Subproject commit a206c554b84fce0db8bd0085590ef756d2f43fe8

tests/glow/uniforms.cc

@@ -32,6 +32,7 @@ TEST_CASE("glow uniform interface")
                                               uniform uvec3 uUVec3;
                                               uniform float uFloatCArray[4];
                                               uniform vec3 uDir3;
+                                              uniform vec4 uColor4;
 
                                               void main()
                                               {
@@ -71,6 +72,7 @@ TEST_CASE("glow uniform interface")
                                                 data[i++] = uFloatCArray[2];
                                                 data[i++] = uFloatCArray[3];
                                                 data[i++] = uDir3[0];
+                                                data[i++] = uColor4[0];
                                               }
                                                                  )");
     auto prog = glow::Program::create(csh);
@@ -123,6 +125,8 @@ TEST_CASE("glow uniform interface")
 
         shader["uDir3"] = tg::dir3::pos_x;
 
+        shader["uColor4"] = tg::color4::red;
+
         shader.compute(1);
     }
 
@@ -177,5 +181,7 @@ TEST_CASE("glow uniform interface")
         CHECK(data[i++] == 7);
         // uDir3
         CHECK(data[i++] == 1);
+        // uColor4
+        CHECK(data[i++] == 1);
     }
 }