LayoutTests/webgl/resources/webgl_test_files/conformance/glsl/misc/uninitialized-local-global-variables.html - WebKit - Git at Google

 <!--
 Copyright (c) 2019 The Khronos Group Inc.
 Use of this source code is governed by an MIT-style license that can be
 found in the LICENSE.txt file.
 -->

 <!DOCTYPE html>
 <html>
 <head>
 <meta charset="utf-8">
 <title>Uninitialized local/global variables should be initialized</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
 <link rel="stylesheet" href="../../../resources/glsl-feature-tests.css"/>
 <script src="../../../js/js-test-pre.js"></script>
 <script src="../../../js/webgl-test-utils.js"> </script>

 <script id="vs_uninit_in_frag" type="x-shader/x-vertex">
 precision mediump float;
 attribute vec4 a_position;
 void main() {
     gl_Position = a_position;
 }
 </script>

 <!-- Uninitialized local in vertex shader -->
 <script id="vs_uninit_local_in_vert" type="x-shader/x-vertex">
 precision mediump float;
 attribute vec4 a_position;
 varying vec3 v_uninit;
 void main() {
     vec3 uninit; // uninitialized
     v_uninit = uninit;
     gl_Position = a_position;
 }
 </script>
 <script id="fs_uninit_local_in_vert" type="x-shader/x-fragment">
 precision mediump float;
 varying vec3 v_uninit;
 void main() {
     gl_FragColor = v_uninit.xyzz;
 }
 </script>

 <!-- Uninitialized local in fragment shader -->
 <script id="fs_uninit_local_in_frag" type="x-shader/x-fragment">
 precision mediump float;
 void main() {
     vec2 uninit; // uninitialized
     gl_FragColor = uninit.xyyy;
 }
 </script>

 <!-- Uninitialized global in vertex shader -->
 <script id="vs_uninit_global_in_vert" type="x-shader/x-vertex">
 precision mediump float;
 attribute vec4 a_position;
 varying float v_uninit;
 float uninit; // uninitialized
 void main() {
     v_uninit = uninit;
     gl_Position = a_position;
 }
 </script>
 <script id="fs_uninit_global_in_vert" type="x-shader/x-fragment">
 precision mediump float;
 varying float v_uninit;
 void main() {
     gl_FragColor = vec4(v_uninit);
 }
 </script>

 <!-- Uninitialized global in fragment shader -->
 <script id="fs_uninit_global_in_frag" type="x-shader/x-fragment">
 precision mediump float;
 vec4 uninit; // uninitialized
 void main() {
     gl_FragColor = uninit;
 }
 </script>

 <!-- Uninitialized local int in fragment shader -->
 <script id="fs_uninit_local_int_in_frag" type="x-shader/x-fragment">
 precision mediump float;
 void main() {
     int uninit;
     gl_FragColor = vec4(uninit);
 }
 </script>

 <!-- Uninitialized local variable and another variable in the same declaration using it as an initializer in fragment shader -->
 <script id="fs_uninit_two_local_variables_in_declaration_in_frag" type="x-shader/x-fragment">
 precision mediump float;
 void main() {
     vec2 uninit, uninit2 = uninit;
     gl_FragColor = uninit2.xyyy;
 }
 </script>

 <!-- Uninitialized local array and another variable in the same declaration using it in its initializer in fragment shader -->
 <script id="fs_uninit_array_and_another_in_declaration_in_frag" type="x-shader/x-fragment">
 precision mediump float;
 void main() {
     vec2 uninit[2], uninit2 = uninit[0];
     gl_FragColor = uninit2.xyyy;
 }
 </script>

 <!-- Uninitialized global int in fragment shader -->
 <script id="fs_uninit_global_int_in_frag" type="x-shader/x-fragment">
 precision mediump float;
 int uninit; // uninitialized
 void main() {
     gl_FragColor = vec4(uninit);
 }
 </script>

 <!-- Uninitialized local struct in fragment shader -->
 <script id="fs_uninit_local_struct_in_frag" type="x-shader/x-fragment">
 precision mediump float;
 struct S { vec4 v; };
 void main() {
     S uninit; // uninitialized
     gl_FragColor = uninit.v;
 }
 </script>

 <!-- Uninitialized global struct in fragment shader -->
 <script id="fs_uninit_global_struct_in_frag" type="x-shader/x-fragment">
 precision mediump float;
 struct S { vec4 v; };
 S uninit; // uninitialized
 void main() {
     gl_FragColor = uninit.v;
 }
 </script>

 <!-- Uninitialized nameless local struct in fragment shader -->
 <script id="fs_uninit_nameless_local_struct_in_frag" type="x-shader/x-fragment">
 precision mediump float;
 void main() {
     struct { vec4 v; } uninit; // uninitialized
     gl_FragColor = uninit.v;
 }
 </script>

 <!-- Uninitialized nameless global struct in fragment shader -->
 <script id="fs_uninit_nameless_global_struct_in_frag" type="x-shader/x-fragment">
 precision mediump float;
 struct { vec4 v; } uninit; // uninitialized
 void main() {
     gl_FragColor = uninit.v;
 }
 </script>

 <!-- Uninitialized local bool in fragment shader -->
 <script id="fs_uninit_local_bool_in_frag" type="x-shader/x-fragment">
 precision mediump float;
 void main() {
     bool uninit[16]; // uninitialized
     bool result;
     for (int i = 0; i < 16; i++) {
         result = result || uninit[i];
     }
     gl_FragColor = result ? vec4(1, 0, 0, 1) : vec4(0);
 }
 </script>

 <!-- Uninitialized global bool in fragment shader -->
 <script id="fs_uninit_global_bool_in_frag" type="x-shader/x-fragment">
 precision mediump float;
 bool uninit[16]; // uninitialized
 void main() {
     bool result = false;
     for (int i = 0; i < 16; i++) {
         result = result || uninit[i];
     }
     gl_FragColor = result ? vec4(1, 0, 0, 1) : vec4(0);
 }
 </script>

 </head>
 <body>
 <canvas id="canvas" width="50" height="50"></canvas>
 <div id="description"></div>
 <div id="console"></div>
 <script>
 "use strict";
 description('Uninitialized local/global variables should be initialized: http://anglebug.com/1966');

 var wtu = WebGLTestUtils;
 var gl = wtu.create3DContext("canvas");
 wtu.setupUnitQuad(gl);

 var cases = [
   {
     name: "Uninitialized local variable in vertex shader",
     prog: ["vs_uninit_local_in_vert", "fs_uninit_local_in_vert"],
   },
   {
     name: "Uninitialized local variable in fragment shader",
     prog: ["vs_uninit_in_frag", "fs_uninit_local_in_frag"],
   },
   {
     name: "Uninitialized global variable in vertex shader",
     prog: ["vs_uninit_global_in_vert", "fs_uninit_global_in_vert"],
   },
   {
     name: "Uninitialized global variable in fragment shader",
     prog: ["vs_uninit_in_frag", "fs_uninit_global_in_frag"],
   },
   {
     name: "Uninitialized local int variable in fragment shader",
     prog: ["vs_uninit_in_frag", "fs_uninit_local_int_in_frag"],
   },
   {
     name: "Uninitialized local variable and another variable in the same declaration using it as an initializer in fragment shader",
     prog: ["vs_uninit_in_frag", "fs_uninit_two_local_variables_in_declaration_in_frag"],
   },
   {
     name: "Uninitialized local array and another variable in the same declaration using it in its initializer in fragment shader",
     prog: ["vs_uninit_in_frag", "fs_uninit_array_and_another_in_declaration_in_frag"],
   },
   {
     name: "Uninitialized global int variable in fragment shader",
     prog: ["vs_uninit_in_frag", "fs_uninit_global_int_in_frag"],
   },
   {
     name: "Uninitialized local struct variable in fragment shader",
     prog: ["vs_uninit_in_frag", "fs_uninit_local_struct_in_frag"],
   },
   {
     name: "Uninitialized global struct variable in fragment shader",
     prog: ["vs_uninit_in_frag", "fs_uninit_global_struct_in_frag"],
   },
   {
     name: "Uninitialized nameless local struct variable in fragment shader",
     prog: ["vs_uninit_in_frag", "fs_uninit_nameless_local_struct_in_frag"],
   },
   {
     name: "Uninitialized nameless global struct variable in fragment shader",
     prog: ["vs_uninit_in_frag", "fs_uninit_nameless_global_struct_in_frag"],
   },
   {
     name: "Uninitialized local bool array variable in fragment shader",
     prog: ["vs_uninit_in_frag", "fs_uninit_local_bool_in_frag"],
   },
   {
     name: "Uninitialized global bool array variable in fragment shader",
     prog: ["vs_uninit_in_frag", "fs_uninit_global_bool_in_frag"],
   },
 ];

 function runTest() {
   for (var i = 0; i < cases.length; ++i) {
     debug("");
     debug(cases[i].name);
     var program = wtu.setupProgram(gl, cases[i].prog, ["a_position"], undefined, true);
     gl.clearColor(1.0, 0.0, 0.0, 1.0);
     wtu.clearAndDrawUnitQuad(gl);
     wtu.checkCanvas(gl, [0, 0, 0, 0]);
   }

   debug("");
   wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors");
 }

 runTest();

 var successfullyParsed = true;
 </script>
 <script src="../../../js/js-test-post.js"></script>
 </body>
 </html>
	<!--
	Copyright (c) 2019 The Khronos Group Inc.
	Use of this source code is governed by an MIT-style license that can be
	found in the LICENSE.txt file.
	-->

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>Uninitialized local/global variables should be initialized</title>
	<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
	<link rel="stylesheet" href="../../../resources/glsl-feature-tests.css"/>
	<script src="../../../js/js-test-pre.js"></script>
	<script src="../../../js/webgl-test-utils.js"> </script>

	<script id="vs_uninit_in_frag" type="x-shader/x-vertex">
	precision mediump float;
	attribute vec4 a_position;
	void main() {
	gl_Position = a_position;
	}
	</script>

	<!-- Uninitialized local in vertex shader -->
	<script id="vs_uninit_local_in_vert" type="x-shader/x-vertex">
	precision mediump float;
	attribute vec4 a_position;
	varying vec3 v_uninit;
	void main() {
	vec3 uninit; // uninitialized
	v_uninit = uninit;
	gl_Position = a_position;
	}
	</script>
	<script id="fs_uninit_local_in_vert" type="x-shader/x-fragment">
	precision mediump float;
	varying vec3 v_uninit;
	void main() {
	gl_FragColor = v_uninit.xyzz;
	}
	</script>

	<!-- Uninitialized local in fragment shader -->
	<script id="fs_uninit_local_in_frag" type="x-shader/x-fragment">
	precision mediump float;
	void main() {
	vec2 uninit; // uninitialized
	gl_FragColor = uninit.xyyy;
	}
	</script>

	<!-- Uninitialized global in vertex shader -->
	<script id="vs_uninit_global_in_vert" type="x-shader/x-vertex">
	precision mediump float;
	attribute vec4 a_position;
	varying float v_uninit;
	float uninit; // uninitialized
	void main() {
	v_uninit = uninit;
	gl_Position = a_position;
	}
	</script>
	<script id="fs_uninit_global_in_vert" type="x-shader/x-fragment">
	precision mediump float;
	varying float v_uninit;
	void main() {
	gl_FragColor = vec4(v_uninit);
	}
	</script>

	<!-- Uninitialized global in fragment shader -->
	<script id="fs_uninit_global_in_frag" type="x-shader/x-fragment">
	precision mediump float;
	vec4 uninit; // uninitialized
	void main() {
	gl_FragColor = uninit;
	}
	</script>

	<!-- Uninitialized local int in fragment shader -->
	<script id="fs_uninit_local_int_in_frag" type="x-shader/x-fragment">
	precision mediump float;
	void main() {
	int uninit;
	gl_FragColor = vec4(uninit);
	}
	</script>

	<!-- Uninitialized local variable and another variable in the same declaration using it as an initializer in fragment shader -->
	<script id="fs_uninit_two_local_variables_in_declaration_in_frag" type="x-shader/x-fragment">
	precision mediump float;
	void main() {
	vec2 uninit, uninit2 = uninit;
	gl_FragColor = uninit2.xyyy;
	}
	</script>

	<!-- Uninitialized local array and another variable in the same declaration using it in its initializer in fragment shader -->
	<script id="fs_uninit_array_and_another_in_declaration_in_frag" type="x-shader/x-fragment">
	precision mediump float;
	void main() {
	vec2 uninit[2], uninit2 = uninit[0];
	gl_FragColor = uninit2.xyyy;
	}
	</script>

	<!-- Uninitialized global int in fragment shader -->
	<script id="fs_uninit_global_int_in_frag" type="x-shader/x-fragment">
	precision mediump float;
	int uninit; // uninitialized
	void main() {
	gl_FragColor = vec4(uninit);
	}
	</script>

	<!-- Uninitialized local struct in fragment shader -->
	<script id="fs_uninit_local_struct_in_frag" type="x-shader/x-fragment">
	precision mediump float;
	struct S { vec4 v; };
	void main() {
	S uninit; // uninitialized
	gl_FragColor = uninit.v;
	}
	</script>

	<!-- Uninitialized global struct in fragment shader -->
	<script id="fs_uninit_global_struct_in_frag" type="x-shader/x-fragment">
	precision mediump float;
	struct S { vec4 v; };
	S uninit; // uninitialized
	void main() {
	gl_FragColor = uninit.v;
	}
	</script>

	<!-- Uninitialized nameless local struct in fragment shader -->
	<script id="fs_uninit_nameless_local_struct_in_frag" type="x-shader/x-fragment">
	precision mediump float;
	void main() {
	struct { vec4 v; } uninit; // uninitialized
	gl_FragColor = uninit.v;
	}
	</script>

	<!-- Uninitialized nameless global struct in fragment shader -->
	<script id="fs_uninit_nameless_global_struct_in_frag" type="x-shader/x-fragment">
	precision mediump float;
	struct { vec4 v; } uninit; // uninitialized
	void main() {
	gl_FragColor = uninit.v;
	}
	</script>

	<!-- Uninitialized local bool in fragment shader -->
	<script id="fs_uninit_local_bool_in_frag" type="x-shader/x-fragment">
	precision mediump float;
	void main() {
	bool uninit[16]; // uninitialized
	bool result;
	for (int i = 0; i < 16; i++) {
	result = result \|\| uninit[i];
	}
	gl_FragColor = result ? vec4(1, 0, 0, 1) : vec4(0);
	}
	</script>

	<!-- Uninitialized global bool in fragment shader -->
	<script id="fs_uninit_global_bool_in_frag" type="x-shader/x-fragment">
	precision mediump float;
	bool uninit[16]; // uninitialized
	void main() {
	bool result = false;
	for (int i = 0; i < 16; i++) {
	result = result \|\| uninit[i];
	}
	gl_FragColor = result ? vec4(1, 0, 0, 1) : vec4(0);
	}
	</script>

	</head>
	<body>
	<canvas id="canvas" width="50" height="50"></canvas>
	<div id="description"></div>
	<div id="console"></div>
	<script>
	"use strict";
	description('Uninitialized local/global variables should be initialized: http://anglebug.com/1966');

	var wtu = WebGLTestUtils;
	var gl = wtu.create3DContext("canvas");
	wtu.setupUnitQuad(gl);

	var cases = [
	{
	name: "Uninitialized local variable in vertex shader",
	prog: ["vs_uninit_local_in_vert", "fs_uninit_local_in_vert"],
	},
	{
	name: "Uninitialized local variable in fragment shader",
	prog: ["vs_uninit_in_frag", "fs_uninit_local_in_frag"],
	},
	{
	name: "Uninitialized global variable in vertex shader",
	prog: ["vs_uninit_global_in_vert", "fs_uninit_global_in_vert"],
	},
	{
	name: "Uninitialized global variable in fragment shader",
	prog: ["vs_uninit_in_frag", "fs_uninit_global_in_frag"],
	},
	{
	name: "Uninitialized local int variable in fragment shader",
	prog: ["vs_uninit_in_frag", "fs_uninit_local_int_in_frag"],
	},
	{
	name: "Uninitialized local variable and another variable in the same declaration using it as an initializer in fragment shader",
	prog: ["vs_uninit_in_frag", "fs_uninit_two_local_variables_in_declaration_in_frag"],
	},
	{
	name: "Uninitialized local array and another variable in the same declaration using it in its initializer in fragment shader",
	prog: ["vs_uninit_in_frag", "fs_uninit_array_and_another_in_declaration_in_frag"],
	},
	{
	name: "Uninitialized global int variable in fragment shader",
	prog: ["vs_uninit_in_frag", "fs_uninit_global_int_in_frag"],
	},
	{
	name: "Uninitialized local struct variable in fragment shader",
	prog: ["vs_uninit_in_frag", "fs_uninit_local_struct_in_frag"],
	},
	{
	name: "Uninitialized global struct variable in fragment shader",
	prog: ["vs_uninit_in_frag", "fs_uninit_global_struct_in_frag"],
	},
	{
	name: "Uninitialized nameless local struct variable in fragment shader",
	prog: ["vs_uninit_in_frag", "fs_uninit_nameless_local_struct_in_frag"],
	},
	{
	name: "Uninitialized nameless global struct variable in fragment shader",
	prog: ["vs_uninit_in_frag", "fs_uninit_nameless_global_struct_in_frag"],
	},
	{
	name: "Uninitialized local bool array variable in fragment shader",
	prog: ["vs_uninit_in_frag", "fs_uninit_local_bool_in_frag"],
	},
	{
	name: "Uninitialized global bool array variable in fragment shader",
	prog: ["vs_uninit_in_frag", "fs_uninit_global_bool_in_frag"],
	},
	];

	function runTest() {
	for (var i = 0; i < cases.length; ++i) {
	debug("");
	debug(cases[i].name);
	var program = wtu.setupProgram(gl, cases[i].prog, ["a_position"], undefined, true);
	gl.clearColor(1.0, 0.0, 0.0, 1.0);
	wtu.clearAndDrawUnitQuad(gl);
	wtu.checkCanvas(gl, [0, 0, 0, 0]);
	}

	debug("");
	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors");
	}

	runTest();

	var successfullyParsed = true;
	</script>
	<script src="../../../js/js-test-post.js"></script>
	</body>
	</html>