1 files changed, 59 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/mat/mat4_4vec4_frag.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/mat/mat4_4vec4_frag.frag
new file mode 100644
index 0000000000..053a5739b3
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/mat/mat4_4vec4_frag.frag
@@ -0,0 +1,59 @@
+
+/*
+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;
+
+/* This epsilon will work as long as the magnitude of the float is < 128.
+ * This can be seen by taking the spec relative mediump precision of 2^-10:
+ * 0.125 / 2^-10 = 128
+ */
+#define ERROR_EPSILON (0.125)
+
+void main (void)
+{
+	vec4 L1 = vec4(1.0, 2.0, 3.0, 4.0);
+	vec4 L2 = vec4(5.0, 6.0, 7.0, 8.0);
+	vec4 L3 = vec4(9.0, 10.0, 11.0, 12.0);
+	vec4 L4 = vec4(13.0, 14.0, 15.0, 16.0);
+
+	mat4 a = mat4(L1,L2,L3,L4);
+
+	float gray,sum1=0.0,sum2=0.0,sum3=0.0,sum4=0.0;
+	int i;
+
+	sum1 = sum1 + a[0][0];
+	sum2 = sum2 + a[1][0];
+	sum3 = sum3 + a[2][0];
+	sum4 = sum4 + a[3][0];
+
+	sum1 = sum1 + a[0][1];
+	sum2 = sum2 + a[1][1];
+	sum3 = sum3 + a[2][1];
+	sum4 = sum4 + a[3][1];
+
+	sum1 = sum1 + a[0][2];
+	sum2 = sum2 + a[1][2];
+	sum3 = sum3 + a[2][2];
+	sum4 = sum4 + a[3][2];
+
+	sum1 = sum1 + a[0][3];
+	sum2 = sum2 + a[1][3];
+	sum3 = sum3 + a[2][3];
+	sum4 = sum4 + a[3][3];
+
+	if( ( sum1 > 10.0-ERROR_EPSILON && sum1 < 10.0+ERROR_EPSILON  ) &&
+		( sum2 > 26.0-ERROR_EPSILON && sum2 < 26.0+ERROR_EPSILON) &&
+		( sum3 > 42.0-ERROR_EPSILON && sum3 < 42.0+ERROR_EPSILON) &&
+		( sum4 > 58.0-ERROR_EPSILON && sum4 < 58.0+ERROR_EPSILON) )
+	gray=1.0;
+	else gray=0.0;
+	gl_FragColor = vec4(gray, gray, gray, 1.0);
+}