Got FPS label rendering on vita

src/dawnopengl/display/shader/SimpleTexturedShaderProgram.cpp

@@ -75,7 +75,7 @@ void SimpleTexturedShaderProgram::compile() {
       ") {\n"
         "float4 o_Color;\n"
         "if(u_HasTexture) {\n"
-          "o_Color = float4(tex2D(u_Text, o_TextCoord).xyz, 1.0);\n"
+          "o_Color = mul(tex2D(u_Text, o_TextCoord), u_Color);\n"
         "} else {\n"
           "o_Color = u_Color;\n"
         "}\n"