First Commit

externals/glslang/Test/precision.frag

@@ -0,0 +1,76 @@
+#version 100
+
+varying vec3 color;       // ERRROR, there is no default qualifier for float
+
+lowp vec2 foo(mediump vec3 mv3)
+{
+    highp vec4 hv4;
+    return hv4.xy;
+}
+
+int global_medium;
+
+uniform lowp sampler2D samplerLow;
+uniform mediump sampler2D samplerMed;
+uniform highp sampler2D samplerHigh;
+
+precision highp int; 
+precision highp ivec2;     // ERROR
+precision mediump int[2];  // ERROR
+vec4 uint;                 // okay
+precision mediump vec4;    // ERROR
+
+int global_high;
+
+void main()
+{
+    lowp int sum = global_medium + global_high;
+
+    gl_FragColor = vec4(color, 1.0);
+
+    int level1_high;
+    sum += level1_high;
+
+    precision lowp int;
+    int level1_low;
+    sum += level1_low;
+    
+    // test maxing precisions of args to get precision of builtin
+    lowp float arg1;
+    mediump float arg2;
+    lowp float d = distance(arg1, arg2);
+
+    {
+        int level2_low;
+        sum += level2_low;
+        
+        precision highp int;
+        int level2_high;
+        sum += level2_high;
+        do {
+            if (true) {
+                precision mediump int;
+                int level4_medium;
+                sum += level4_medium;
+            }
+            int level3_high;
+            sum += level3_high;
+        } while (true);	
+        int level2_high2;
+        sum += level2_high2;
+    }
+    int level1_low3;
+    sum += level1_low3;
+
+    sum += 4 + ((ivec2(level1_low3) * ivec2(level1_high) + ivec2((/* comma operator */level1_low3, level1_high)))).x;
+    
+    texture2D(samplerLow, vec2(0.1, 0.2));
+    texture2D(samplerMed, vec2(0.1, 0.2));
+    texture2D(samplerHigh, vec2(0.1, 0.2));
+}
+
+precision mediump bool;                 // ERROR
+//precision mediump struct { int a; } s;  // ERROR
+struct s {int a;};
+precision mediump s;                    // ERROR
+mediump bvec2 b2;                       // ERROR