1 files changed, 113 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/deqp/framework/referencerenderer/rrShadingContext.js b/dom/canvas/test/webgl-conf/checkout/deqp/framework/referencerenderer/rrShadingContext.js
new file mode 100644
index 0000000000..38b9d201f9
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/deqp/framework/referencerenderer/rrShadingContext.js
@@ -0,0 +1,113 @@
+/*-------------------------------------------------------------------------
+ * drawElements Quality Program OpenGL ES Utilities
+ * ------------------------------------------------
+ *
+ * Copyright 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+'use strict';
+goog.provide('framework.referencerenderer.rrShadingContext');
+goog.require('framework.referencerenderer.rrFragmentOperations');
+goog.require('framework.delibs.debase.deMath');
+goog.require('framework.referencerenderer.rrDefs');
+goog.require('framework.referencerenderer.rrFragmentOperations');
+goog.require('framework.referencerenderer.rrGenericVector');
+
+goog.scope(function() {
+
+    var rrShadingContext = framework.referencerenderer.rrShadingContext;
+    var deMath = framework.delibs.debase.deMath;
+    var rrDefs = framework.referencerenderer.rrDefs;
+    var rrFragmentOperations = framework.referencerenderer.rrFragmentOperations;
+    var rrGenericVector = framework.referencerenderer.rrGenericVector;
+
+    var DE_ASSERT = function(x) {
+        if (!x)
+            throw new Error('Assert failed');
+    };
+
+    /**
+     * Fragment shading context
+     *
+     * Contains per-primitive information used in fragment shading
+     * @constructor
+     * @param {Array<Array<number>>} varying0 (GenericVec4*)
+     * @param {Array<Array<number>>} varying1 (GenericVec4*)
+     * @param {Array<Array<number>>} varying2 (GenericVec4*)
+     */
+    rrShadingContext.FragmentShadingContext = function(varying0, varying1, varying2) {
+        /** @type {Array<Array<Array<number>>>} */ this.varyings = [varying0, varying1, varying2]; //!< Vertex shader outputs. Pointer will be NULL if there is no such vertex.
+        this.m_width = 0xFFFFFFFF;
+        this.m_height = 0xFFFFFFFF;
+    };
+
+    /**
+     * @param {number} width
+     * @param {number} height
+     */
+    rrShadingContext.FragmentShadingContext.prototype.setSize = function(width, height) {
+        this.m_width = width;
+        this.m_height = height;
+    };
+
+    rrShadingContext.FragmentShadingContext.prototype.getWidth = function() {
+        return this.m_width;
+    };
+
+    rrShadingContext.FragmentShadingContext.prototype.getHeight = function() {
+        return this.m_height;
+    };
+
+    // Read Varying
+
+    /**
+     * @param {rrFragmentOperations.Fragment} packet
+     * @param {rrShadingContext.FragmentShadingContext} context
+     * @param {number} varyingLoc
+     * @return {Array<number>} (Vector<T, 4>)
+     */
+    rrShadingContext.readTriangleVarying = function(packet, context, varyingLoc) {
+        var result = deMath.scale(
+            context.varyings[0][varyingLoc],
+            packet.barycentric[0]
+        );
+
+        if (context.varyings[1])
+            result = deMath.add(result, deMath.scale(
+                context.varyings[1][varyingLoc],
+                packet.barycentric[1]
+            ));
+
+        if (context.varyings[2])
+            result = deMath.add(result, deMath.scale(
+                context.varyings[2][varyingLoc],
+                packet.barycentric[2]
+            ));
+
+        return result;
+    };
+
+    /**
+     * @param {rrFragmentOperations.Fragment} packet
+     * @param {rrShadingContext.FragmentShadingContext} context
+     * @param {number} varyingLoc
+     * @return {Array<number>} (Vector<T, 4>)
+     */
+    rrShadingContext.readVarying = function(packet, context, varyingLoc) {
+        return rrShadingContext.readTriangleVarying(packet, context, varyingLoc);
+    };
+
+});