1 files changed, 128 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/functions/mat4_empty_inout_mat4_empty_frag.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/functions/mat4_empty_inout_mat4_empty_frag.frag
new file mode 100644
index 0000000000..8aee0309fd
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/functions/mat4_empty_inout_mat4_empty_frag.frag
@@ -0,0 +1,128 @@
+
+/*
+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.
+*/
+
+
+#ifdef GL_ES
+precision mediump float;
+#endif
+varying vec4 color;
+
+// Function declaration.
+mat4 function(inout mat4 par);
+bool is_all(const in mat4 par, const in float value);
+void set_all(out mat4 par, const in float value);
+
+void main (void)
+{
+	mat4 par = mat4(1.0, 1.0, 1.0, 1.0,
+			1.0, 1.0, 1.0, 1.0,
+			1.0, 1.0, 1.0, 1.0,
+			1.0, 1.0, 1.0, 1.0);
+	mat4 ret = mat4(0.0, 0.0, 0.0, 0.0,
+			0.0, 0.0, 0.0, 0.0,
+			0.0, 0.0, 0.0, 0.0,
+			0.0, 0.0, 0.0, 0.0);
+
+	float gray = 0.0;
+
+	ret = function(par);
+
+	// The parameter should be changed by the function and the function should return 1.0.
+	if(is_all(par, 0.0) && is_all(ret, 1.0))
+	{
+		gray = 1.0;
+	}
+
+	gl_FragColor = vec4(gray, gray, gray, 1.0);
+}
+
+// Function definition.
+mat4 function(inout mat4 par)
+{
+	// Return the value of the parameter.
+	if(is_all(par, 1.0))
+	{
+		// Test parameter qualifier (default is "in").
+		set_all(par, 0.0);
+
+		return mat4(1.0, 1.0, 1.0, 1.0,
+			    1.0, 1.0, 1.0, 1.0,
+			    1.0, 1.0, 1.0, 1.0,
+			    1.0, 1.0, 1.0, 1.0);
+	}
+	else
+		return mat4(0.0, 0.0, 0.0, 0.0,
+			    0.0, 0.0, 0.0, 0.0,
+			    0.0, 0.0, 0.0, 0.0,
+			    0.0, 0.0, 0.0, 0.0);
+}
+
+bool is_all(const in mat4 par, const in float value)
+{
+	bool ret = true;
+
+	if(par[0][0] != value)
+		ret = false;
+	if(par[0][1] != value)
+		ret = false;
+	if(par[0][2] != value)
+		ret = false;
+	if(par[0][3] != value)
+		ret = false;
+
+	if(par[1][0] != value)
+		ret = false;
+	if(par[1][1] != value)
+		ret = false;
+	if(par[1][2] != value)
+		ret = false;
+	if(par[1][3] != value)
+		ret = false;
+
+	if(par[2][0] != value)
+		ret = false;
+	if(par[2][1] != value)
+		ret = false;
+	if(par[2][2] != value)
+		ret = false;
+	if(par[2][3] != value)
+		ret = false;
+
+	if(par[3][0] != value)
+		ret = false;
+	if(par[3][1] != value)
+		ret = false;
+	if(par[3][2] != value)
+		ret = false;
+	if(par[3][3] != value)
+		ret = false;
+
+	return ret;
+}
+
+void set_all(out mat4 par, const in float value)
+{
+	par[0][0] = value;
+	par[0][1] = value;
+	par[0][2] = value;
+	par[0][3] = value;
+
+	par[1][0] = value;
+	par[1][1] = value;
+	par[1][2] = value;
+	par[1][3] = value;
+
+	par[2][0] = value;
+	par[2][1] = value;
+	par[2][2] = value;
+	par[2][3] = value;
+
+	par[3][0] = value;
+	par[3][1] = value;
+	par[3][2] = value;
+	par[3][3] = value;
+}