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-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/input.run.txt3
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_001_to_008.html135
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_009_to_012.html83
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary.frag18
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary01.frag18
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary01_ref.frag39
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary_ref.frag36
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary.vert19
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary01.vert19
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary01_ref.vert40
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary_ref.vert35
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary.frag18
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary01.frag18
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary01_ref.frag39
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary_ref.frag36
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary.vert19
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary01.vert19
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary01_ref.vert40
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary_ref.vert37
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary.frag18
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary01.frag18
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary01_ref.frag39
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary_ref.frag36
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary.vert19
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary01.vert19
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary01_ref.vert40
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary_ref.vert37
27 files changed, 897 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/input.run.txt b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/input.run.txt
new file mode 100644
index 0000000000..4205bf17ca
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/input.run.txt
@@ -0,0 +1,3 @@
+# this file is auto-generated. DO NOT EDIT.
+log2_001_to_008.html
+log2_009_to_012.html
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_001_to_008.html b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_001_to_008.html
new file mode 100644
index 0000000000..53dc3e0f8f
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_001_to_008.html
@@ -0,0 +1,135 @@
+<!DOCTYPE html>
+<!-- this file is auto-generated. DO NOT EDIT. -->
+<!--
+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.
+-->
+<html>
+<head>
+<meta charset="utf-8">
+<title>WebGL GLSL conformance test: log2_001_to_008.html</title>
+<link rel="stylesheet" href="../../../../resources/js-test-style.css" />
+<link rel="stylesheet" href="../../../../resources/ogles-tests.css" />
+<script src="../../../../js/js-test-pre.js"></script>
+<script src="../../../../js/webgl-test-utils.js"></script>
+<script src="../../ogles-utils.js"></script>
+</head>
+<body>
+<canvas id="example" width="500" height="500" style="width: 16px; height: 16px;"></canvas>
+<div id="description"></div>
+<div id="console"></div>
+</body>
+<script>
+"use strict";
+OpenGLESTestRunner.run({
+ "tests": [
+ {
+ "referenceProgram": {
+ "vertexShader": "../default/default.vert",
+ "fragmentShader": "log2_float_frag_xvary_ref.frag"
+ },
+ "model": null,
+ "testProgram": {
+ "vertexShader": "../default/default.vert",
+ "fragmentShader": "log2_float_frag_xvary.frag"
+ },
+ "name": "log2_float_frag_xvary.test.html",
+ "pattern": "compare"
+ },
+ {
+ "referenceProgram": {
+ "vertexShader": "../default/default.vert",
+ "fragmentShader": "log2_float_frag_xvary01_ref.frag"
+ },
+ "model": null,
+ "testProgram": {
+ "vertexShader": "../default/default.vert",
+ "fragmentShader": "log2_float_frag_xvary01.frag"
+ },
+ "name": "log2_float_frag_xvary01.test.html",
+ "pattern": "compare"
+ },
+ {
+ "referenceProgram": {
+ "vertexShader": "../default/default.vert",
+ "fragmentShader": "log2_vec2_frag_xvary_ref.frag"
+ },
+ "model": null,
+ "testProgram": {
+ "vertexShader": "../default/default.vert",
+ "fragmentShader": "log2_vec2_frag_xvary.frag"
+ },
+ "name": "log2_vec2_frag_xvary.test.html",
+ "pattern": "compare"
+ },
+ {
+ "referenceProgram": {
+ "vertexShader": "../default/default.vert",
+ "fragmentShader": "log2_vec2_frag_xvary01_ref.frag"
+ },
+ "model": null,
+ "testProgram": {
+ "vertexShader": "../default/default.vert",
+ "fragmentShader": "log2_vec2_frag_xvary01.frag"
+ },
+ "name": "log2_vec2_frag_xvary01.test.html",
+ "pattern": "compare"
+ },
+ {
+ "referenceProgram": {
+ "vertexShader": "../default/default.vert",
+ "fragmentShader": "log2_vec3_frag_xvary_ref.frag"
+ },
+ "model": null,
+ "testProgram": {
+ "vertexShader": "../default/default.vert",
+ "fragmentShader": "log2_vec3_frag_xvary.frag"
+ },
+ "name": "log2_vec3_frag_xvary.test.html",
+ "pattern": "compare"
+ },
+ {
+ "referenceProgram": {
+ "vertexShader": "../default/default.vert",
+ "fragmentShader": "log2_vec3_frag_xvary01_ref.frag"
+ },
+ "model": null,
+ "testProgram": {
+ "vertexShader": "../default/default.vert",
+ "fragmentShader": "log2_vec3_frag_xvary01.frag"
+ },
+ "name": "log2_vec3_frag_xvary01.test.html",
+ "pattern": "compare"
+ },
+ {
+ "referenceProgram": {
+ "vertexShader": "log2_float_vert_xvary_ref.vert",
+ "fragmentShader": "../default/default.frag"
+ },
+ "model": "grid",
+ "testProgram": {
+ "vertexShader": "log2_float_vert_xvary.vert",
+ "fragmentShader": "../default/default.frag"
+ },
+ "name": "log2_float_vert_xvary.test.html",
+ "pattern": "compare"
+ },
+ {
+ "referenceProgram": {
+ "vertexShader": "log2_float_vert_xvary01_ref.vert",
+ "fragmentShader": "../default/default.frag"
+ },
+ "model": "grid",
+ "testProgram": {
+ "vertexShader": "log2_float_vert_xvary01.vert",
+ "fragmentShader": "../default/default.frag"
+ },
+ "name": "log2_float_vert_xvary01.test.html",
+ "pattern": "compare"
+ }
+ ]
+});
+var successfullyParsed = true;
+</script>
+</html>
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_009_to_012.html b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_009_to_012.html
new file mode 100644
index 0000000000..a7644b3792
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_009_to_012.html
@@ -0,0 +1,83 @@
+<!DOCTYPE html>
+<!-- this file is auto-generated. DO NOT EDIT. -->
+<!--
+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.
+-->
+<html>
+<head>
+<meta charset="utf-8">
+<title>WebGL GLSL conformance test: log2_009_to_012.html</title>
+<link rel="stylesheet" href="../../../../resources/js-test-style.css" />
+<link rel="stylesheet" href="../../../../resources/ogles-tests.css" />
+<script src="../../../../js/js-test-pre.js"></script>
+<script src="../../../../js/webgl-test-utils.js"></script>
+<script src="../../ogles-utils.js"></script>
+</head>
+<body>
+<canvas id="example" width="500" height="500" style="width: 16px; height: 16px;"></canvas>
+<div id="description"></div>
+<div id="console"></div>
+</body>
+<script>
+"use strict";
+OpenGLESTestRunner.run({
+ "tests": [
+ {
+ "referenceProgram": {
+ "vertexShader": "log2_vec2_vert_xvary_ref.vert",
+ "fragmentShader": "../default/default.frag"
+ },
+ "model": "grid",
+ "testProgram": {
+ "vertexShader": "log2_vec2_vert_xvary.vert",
+ "fragmentShader": "../default/default.frag"
+ },
+ "name": "log2_vec2_vert_xvary.test.html",
+ "pattern": "compare"
+ },
+ {
+ "referenceProgram": {
+ "vertexShader": "log2_vec2_vert_xvary01_ref.vert",
+ "fragmentShader": "../default/default.frag"
+ },
+ "model": "grid",
+ "testProgram": {
+ "vertexShader": "log2_vec2_vert_xvary01.vert",
+ "fragmentShader": "../default/default.frag"
+ },
+ "name": "log2_vec2_vert_xvary01.test.html",
+ "pattern": "compare"
+ },
+ {
+ "referenceProgram": {
+ "vertexShader": "log2_vec3_vert_xvary_ref.vert",
+ "fragmentShader": "../default/default.frag"
+ },
+ "model": "grid",
+ "testProgram": {
+ "vertexShader": "log2_vec3_vert_xvary.vert",
+ "fragmentShader": "../default/default.frag"
+ },
+ "name": "log2_vec3_vert_xvary.test.html",
+ "pattern": "compare"
+ },
+ {
+ "referenceProgram": {
+ "vertexShader": "log2_vec3_vert_xvary01_ref.vert",
+ "fragmentShader": "../default/default.frag"
+ },
+ "model": "grid",
+ "testProgram": {
+ "vertexShader": "log2_vec3_vert_xvary01.vert",
+ "fragmentShader": "../default/default.frag"
+ },
+ "name": "log2_vec3_vert_xvary01.test.html",
+ "pattern": "compare"
+ }
+ ]
+});
+var successfullyParsed = true;
+</script>
+</html>
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary.frag
new file mode 100644
index 0000000000..ad8169e98b
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary.frag
@@ -0,0 +1,18 @@
+
+/*
+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;
+
+void main (void)
+{
+ float c = 31.0 * color.r + 1.0;
+ gl_FragColor = vec4(log2(c) / 5.0, 0.0, 0.0, 1.0);
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary01.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary01.frag
new file mode 100644
index 0000000000..ccbdc87177
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary01.frag
@@ -0,0 +1,18 @@
+
+/*
+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;
+
+void main (void)
+{
+ float c = (color.r + 0.01) / 1.01;
+ gl_FragColor = vec4(log2(c) / -8.0, 0.0, 0.0, 1.0);
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary01_ref.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary01_ref.frag
new file mode 100644
index 0000000000..ff9edaee40
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary01_ref.frag
@@ -0,0 +1,39 @@
+
+/*
+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;
+const float ln2 = 0.69314718055994530941723212145818;
+
+
+
+void main (void)
+{
+ float x = (color.r + 0.01) / 1.01;
+ float y = 0.0;
+ float z; // x-1 / x+1
+ int n = 50;
+
+ // ln(x) = 2[x-1 + 1 (x-1)^3 + 1 (x-1)^5 + ...] for x > 0
+ // [x+1 3 (x+1) 5 (x+1) ]
+ // Note: z will always be negative between 0.01 and 1.0 and
+ // so will y since it is raised to an odd power, and the shader spec
+ // does not support pow(-x, y) where y is not a compile time constant
+ z = abs((x - 1.0) / (x + 1.0));
+ float p = z;
+ for(int i = 1; i <= 101; i += 2)
+ {
+ y += p / float(i);
+ p *= z * z;
+ }
+ y *= -2.0 / ln2;
+
+ gl_FragColor = vec4(y / -8.0, 0.0, 0.0, 1.0);
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary_ref.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary_ref.frag
new file mode 100644
index 0000000000..778cdcd14a
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_frag_xvary_ref.frag
@@ -0,0 +1,36 @@
+
+/*
+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;
+const float ln2 = 0.69314718055994530941723212145818;
+
+
+
+void main (void)
+{
+ float x = 31.0 * color.r + 1.0;
+ float y = 0.0;
+ float z; // x-1 / x+1
+ int n = 50;
+
+ // ln(x) = 2[x-1 + 1 (x-1)^3 + 1 (x-1)^5 + ...] for x > 0
+ // [x+1 3 (x+1) 5 (x+1) ]
+ z = (x - 1.0) / (x + 1.0);
+ float p = z;
+ for(int i = 1; i <= 101; i += 2)
+ {
+ y += p / float(i);
+ p *= z * z;
+ }
+ y *= 2.0 / ln2;
+
+ gl_FragColor = vec4(y / 5.0, 0.0, 0.0, 1.0);
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary.vert b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary.vert
new file mode 100644
index 0000000000..4015613d2f
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary.vert
@@ -0,0 +1,19 @@
+
+/*
+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.
+*/
+
+
+attribute vec4 gtf_Color;
+attribute vec4 gtf_Vertex;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+varying vec4 color;
+
+void main (void)
+{
+ float c = 31.0 * gtf_Color.r + 1.0;
+ color = vec4(log2(c) / 5.0, 0.0, 0.0, 1.0);
+ gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary01.vert b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary01.vert
new file mode 100644
index 0000000000..1cf60f89c7
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary01.vert
@@ -0,0 +1,19 @@
+
+/*
+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.
+*/
+
+
+attribute vec4 gtf_Color;
+attribute vec4 gtf_Vertex;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+varying vec4 color;
+
+void main (void)
+{
+ float c = (gtf_Color.r + 0.01) / 1.01;
+ color = vec4(log2(c) / -8.0, 0.0, 0.0, 1.0);
+ gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary01_ref.vert b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary01_ref.vert
new file mode 100644
index 0000000000..8589a5eb35
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary01_ref.vert
@@ -0,0 +1,40 @@
+
+/*
+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.
+*/
+
+
+attribute vec4 gtf_Color;
+attribute vec4 gtf_Vertex;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+varying vec4 color;
+const float ln2 = 0.69314718055994530941723212145818;
+
+
+
+void main (void)
+{
+ float x = (gtf_Color.r + 0.01) / 1.01;
+ float y = 0.0;
+ float z; // x-1 / x+1
+ int n = 50;
+
+ // ln(x) = 2[x-1 + 1 (x-1)^3 + 1 (x-1)^5 + ...] for x > 0
+ // [x+1 3 (x+1) 5 (x+1) ]
+ // Note: z will always be negative between 0.01 and 1.0 and
+ // so will y since it is raised to an odd power, and the shader spec
+ // does not support pow(-x, y) where y is not a compile time constant
+ z = abs((x - 1.0) / (x + 1.0));
+ float p = z;
+ for(int i = 1; i <= 101; i += 2)
+ {
+ y += p / float(i);
+ p *= z * z;
+ }
+ y *= -2.0 / ln2;
+
+ color = vec4(y / -8.0, 0.0, 0.0, 1.0);
+ gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary_ref.vert b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary_ref.vert
new file mode 100644
index 0000000000..ed2d0feb45
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_float_vert_xvary_ref.vert
@@ -0,0 +1,35 @@
+
+/*
+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.
+*/
+
+
+attribute vec4 gtf_Color;
+attribute vec4 gtf_Vertex;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+varying vec4 color;
+const float ln2 = 0.69314718055994530941723212145818;
+
+void main (void)
+{
+ float x = 31.0 * gtf_Color.r + 1.0;
+ float y = 0.0;
+ float z; // x-1 / x+1
+ int n = 50;
+
+ // ln(x) = 2[x-1 + 1 (x-1)^3 + 1 (x-1)^5 + ...] for x > 0
+ // [x+1 3 (x+1) 5 (x+1) ]
+ z = (x - 1.0) / (x + 1.0);
+ float p = z;
+ for(int i = 1; i <= 101; i += 2)
+ {
+ y += p / float(i);
+ p *= z * z;
+ }
+ y *= 2.0 / ln2;
+
+ color = vec4(y / 5.0, 0.0, 0.0, 1.0);
+ gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary.frag
new file mode 100644
index 0000000000..2ee68d590c
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary.frag
@@ -0,0 +1,18 @@
+
+/*
+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;
+
+void main (void)
+{
+ vec2 c = 31.0 * color.rg + 1.0;
+ gl_FragColor = vec4(log2(c) / 5.0, 0.0, 1.0);
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary01.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary01.frag
new file mode 100644
index 0000000000..3dd8484bc8
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary01.frag
@@ -0,0 +1,18 @@
+
+/*
+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;
+
+void main (void)
+{
+ vec2 c = (color.rg + 0.01) / 1.01;
+ gl_FragColor = vec4(log2(c) / -8.0, 0.0, 1.0);
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary01_ref.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary01_ref.frag
new file mode 100644
index 0000000000..ab307fadc5
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary01_ref.frag
@@ -0,0 +1,39 @@
+
+/*
+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;
+const float ln2 = 0.69314718055994530941723212145818;
+
+
+
+void main (void)
+{
+ vec2 x = (color.rg + 0.01) / 1.01;
+ vec2 y = vec2(0.0);
+ vec2 z; // x-1 / x+1
+ int n = 50;
+
+ // ln(x) = 2[x-1 + 1 (x-1)^3 + 1 (x-1)^5 + ...] for x > 0
+ // [x+1 3 (x+1) 5 (x+1) ]
+ // Note: z will always be negative between 0.01 and 1.0 and
+ // so will y since it is raised to an odd power, and the shader spec
+ // does not support pow(-x, y) where y is not a compile time constant
+ z = abs((x - 1.0) / (x + 1.0));
+ vec2 p = z;
+ for(int i = 1; i <= 101; i += 2)
+ {
+ y += p / float(i);
+ p *= z * z;
+ }
+ y *= -2.0 / ln2;
+
+ gl_FragColor = vec4(y / -8.0, 0.0, 1.0);
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary_ref.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary_ref.frag
new file mode 100644
index 0000000000..9f54de2a2b
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_frag_xvary_ref.frag
@@ -0,0 +1,36 @@
+
+/*
+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;
+const float ln2 = 0.69314718055994530941723212145818;
+
+
+
+void main (void)
+{
+ vec2 x = 31.0 * color.rg + 1.0;
+ vec2 y = vec2(0.0);
+ vec2 z; // x-1 / x+1
+ int n = 50;
+
+ // ln(x) = 2[x-1 + 1 (x-1)^3 + 1 (x-1)^5 + ...] for x > 0
+ // [x+1 3 (x+1) 5 (x+1) ]
+ z = (x - 1.0) / (x + 1.0);
+ vec2 p = z;
+ for(int i = 1; i <= 101; i += 2)
+ {
+ y += p / float(i);
+ p *= z * z;
+ }
+ y *= 2.0 / ln2;
+
+ gl_FragColor = vec4(y / 5.0, 0.0, 1.0);
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary.vert b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary.vert
new file mode 100644
index 0000000000..2f07daaa42
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary.vert
@@ -0,0 +1,19 @@
+
+/*
+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.
+*/
+
+
+attribute vec4 gtf_Color;
+attribute vec4 gtf_Vertex;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+varying vec4 color;
+
+void main (void)
+{
+ vec2 c = 31.0 * gtf_Color.rg + 1.0;
+ color = vec4(log2(c) / 5.0, 0.0, 1.0);
+ gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary01.vert b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary01.vert
new file mode 100644
index 0000000000..64312ac8d6
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary01.vert
@@ -0,0 +1,19 @@
+
+/*
+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.
+*/
+
+
+attribute vec4 gtf_Color;
+attribute vec4 gtf_Vertex;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+varying vec4 color;
+
+void main (void)
+{
+ vec2 c = (gtf_Color.rg + 0.01) / 1.01;
+ color = vec4(log2(c) / -8.0, 0.0, 1.0);
+ gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary01_ref.vert b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary01_ref.vert
new file mode 100644
index 0000000000..e0a8cf3419
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary01_ref.vert
@@ -0,0 +1,40 @@
+
+/*
+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.
+*/
+
+
+attribute vec4 gtf_Color;
+attribute vec4 gtf_Vertex;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+varying vec4 color;
+const float ln2 = 0.69314718055994530941723212145818;
+
+
+
+void main (void)
+{
+ vec2 x = (gtf_Color.rg + 0.01) / 1.01;
+ vec2 y = vec2(0.0);
+ vec2 z; // x-1 / x+1
+ int n = 50;
+
+ // ln(x) = 2[x-1 + 1 (x-1)^3 + 1 (x-1)^5 + ...] for x > 0
+ // [x+1 3 (x+1) 5 (x+1) ]
+ // Note: z will always be negative between 0.01 and 1.0 and
+ // so will y since it is raised to an odd power, and the shader spec
+ // does not support pow(-x, y) where y is not a compile time constant
+ z = abs((x - 1.0) / (x + 1.0));
+ vec2 p = z;
+ for(int i = 1; i <= 101; i += 2)
+ {
+ y += p / float(i);
+ p *= z * z;
+ }
+ y *= -2.0 / ln2;
+
+ color = vec4(y / -8.0, 0.0, 1.0);
+ gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary_ref.vert b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary_ref.vert
new file mode 100644
index 0000000000..744dfda43f
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec2_vert_xvary_ref.vert
@@ -0,0 +1,37 @@
+
+/*
+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.
+*/
+
+
+attribute vec4 gtf_Color;
+attribute vec4 gtf_Vertex;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+varying vec4 color;
+const float ln2 = 0.69314718055994530941723212145818;
+
+
+
+void main (void)
+{
+ vec2 x = 31.0 * gtf_Color.rg + 1.0;
+ vec2 y = vec2(0.0);
+ vec2 z; // x-1 / x+1
+ int n = 50;
+
+ // ln(x) = 2[x-1 + 1 (x-1)^3 + 1 (x-1)^5 + ...] for x > 0
+ // [x+1 3 (x+1) 5 (x+1) ]
+ z = (x - 1.0) / (x + 1.0);
+ vec2 p = z;
+ for(int i = 1; i <= 101; i += 2)
+ {
+ y += p / float(i);
+ p *= z * z;
+ }
+ y *= 2.0 / ln2;
+
+ color = vec4(y / 5.0, 0.0, 1.0);
+ gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary.frag
new file mode 100644
index 0000000000..5cecf12102
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary.frag
@@ -0,0 +1,18 @@
+
+/*
+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;
+
+void main (void)
+{
+ vec3 c = 31.0 * color.rgb + 1.0;
+ gl_FragColor = vec4(log2(c) / 5.0, 1.0);
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary01.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary01.frag
new file mode 100644
index 0000000000..098e2f9555
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary01.frag
@@ -0,0 +1,18 @@
+
+/*
+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;
+
+void main (void)
+{
+ vec3 c = (color.rgb + 0.01) / 1.01;
+ gl_FragColor = vec4(log2(c) / -8.0, 1.0);
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary01_ref.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary01_ref.frag
new file mode 100644
index 0000000000..5cdf6af9ca
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary01_ref.frag
@@ -0,0 +1,39 @@
+
+/*
+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;
+const float ln2 = 0.69314718055994530941723212145818;
+
+
+
+void main (void)
+{
+ vec3 x = (color.rgb + 0.01) / 1.01;
+ vec3 y = vec3(0.0);
+ vec3 z; // x-1 / x+1
+ int n = 50;
+
+ // ln(x) = 2[x-1 + 1 (x-1)^3 + 1 (x-1)^5 + ...] for x > 0
+ // [x+1 3 (x+1) 5 (x+1) ]
+ // Note: z will always be negative between 0.01 and 1.0 and
+ // so will y since it is raised to an odd power, and the shader spec
+ // does not support pow(-x, y) where y is not a compile time constant
+ z = abs((x - 1.0) / (x + 1.0));
+ vec3 p = z;
+ for(int i = 1; i <= 101; i += 2)
+ {
+ y += p / float(i);
+ p *= z * z;
+ }
+ y *= -2.0 / ln2;
+
+ gl_FragColor = vec4(y / -8.0, 1.0);
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary_ref.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary_ref.frag
new file mode 100644
index 0000000000..d7303ef677
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_frag_xvary_ref.frag
@@ -0,0 +1,36 @@
+
+/*
+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;
+const float ln2 = 0.69314718055994530941723212145818;
+
+
+
+void main (void)
+{
+ vec3 x = 31.0 * color.rgb + 1.0;
+ vec3 y = vec3(0.0);
+ vec3 z; // x-1 / x+1
+ int n = 50;
+
+ // ln(x) = 2[x-1 + 1 (x-1)^3 + 1 (x-1)^5 + ...] for x > 0
+ // [x+1 3 (x+1) 5 (x+1) ]
+ z = (x - 1.0) / (x + 1.0);
+ vec3 p = z;
+ for(int i = 1; i <= 101; i += 2)
+ {
+ y += p / float(i);
+ p *= z * z;
+ }
+ y *= 2.0 / ln2;
+
+ gl_FragColor = vec4(y / 5.0, 1.0);
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary.vert b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary.vert
new file mode 100644
index 0000000000..26a270b80d
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary.vert
@@ -0,0 +1,19 @@
+
+/*
+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.
+*/
+
+
+attribute vec4 gtf_Color;
+attribute vec4 gtf_Vertex;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+varying vec4 color;
+
+void main (void)
+{
+ vec3 c = 31.0 * gtf_Color.rgb + 1.0;
+ color = vec4(log2(c) / 5.0, 1.0);
+ gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary01.vert b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary01.vert
new file mode 100644
index 0000000000..3f8c464f31
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary01.vert
@@ -0,0 +1,19 @@
+
+/*
+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.
+*/
+
+
+attribute vec4 gtf_Color;
+attribute vec4 gtf_Vertex;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+varying vec4 color;
+
+void main (void)
+{
+ vec3 c = (gtf_Color.rgb + 0.01) / 1.01;
+ color = vec4(log2(c) / -8.0, 1.0);
+ gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary01_ref.vert b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary01_ref.vert
new file mode 100644
index 0000000000..97bfe7775d
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary01_ref.vert
@@ -0,0 +1,40 @@
+
+/*
+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.
+*/
+
+
+attribute vec4 gtf_Color;
+attribute vec4 gtf_Vertex;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+varying vec4 color;
+const float ln2 = 0.69314718055994530941723212145818;
+
+
+
+void main (void)
+{
+ vec3 x = (gtf_Color.rgb + 0.01) / 1.01;
+ vec3 y = vec3(0.0);
+ vec3 z; // x-1 / x+1
+ int n = 50;
+
+ // ln(x) = 2[x-1 + 1 (x-1)^3 + 1 (x-1)^5 + ...] for x > 0
+ // [x+1 3 (x+1) 5 (x+1) ]
+ // Note: z will always be negative between 0.01 and 1.0 and
+ // so will y since it is raised to an odd power, and the shader spec
+ // does not support pow(-x, y) where y is not a compile time constant
+ z = abs((x - 1.0) / (x + 1.0));
+ vec3 p = z;
+ for(int i = 1; i <= 101; i += 2)
+ {
+ y += p / float(i);
+ p *= z * z;
+ }
+ y *= -2.0 / ln2;
+
+ color = vec4(y / -8.0, 1.0);
+ gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary_ref.vert b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary_ref.vert
new file mode 100644
index 0000000000..de23394ff0
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/log2/log2_vec3_vert_xvary_ref.vert
@@ -0,0 +1,37 @@
+
+/*
+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.
+*/
+
+
+attribute vec4 gtf_Color;
+attribute vec4 gtf_Vertex;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+varying vec4 color;
+const float ln2 = 0.69314718055994530941723212145818;
+
+
+
+void main (void)
+{
+ vec3 x = 31.0 * gtf_Color.rgb + 1.0;
+ vec3 y = vec3(0.0);
+ vec3 z; // x-1 / x+1
+ int n = 50;
+
+ // ln(x) = 2[x-1 + 1 (x-1)^3 + 1 (x-1)^5 + ...] for x > 0
+ // [x+1 3 (x+1) 5 (x+1) ]
+ z = (x - 1.0) / (x + 1.0);
+ vec3 p = z;
+ for(int i = 1; i <= 101; i += 2)
+ {
+ y += p / float(i);
+ p *= z * z;
+ }
+ y *= 2.0 / ln2;
+
+ color = vec4(y / 5.0, 1.0);
+ gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}