1 files changed, 115 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/deqp/framework/referencerenderer/rrUtil.js b/dom/canvas/test/webgl-conf/checkout/deqp/framework/referencerenderer/rrUtil.js
new file mode 100644
index 0000000000..03a58168fc
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/deqp/framework/referencerenderer/rrUtil.js
@@ -0,0 +1,115 @@
+/*-------------------------------------------------------------------------
+ * 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.rrUtil');
+goog.require('framework.opengl.simplereference.sglrGLContext');
+goog.require('framework.opengl.simplereference.sglrReferenceContext');
+
+goog.scope(function() {
+
+    var rrUtil = framework.referencerenderer.rrUtil;
+    var sglrGLContext = framework.opengl.simplereference.sglrGLContext;
+    var sglrReferenceContext = framework.opengl.simplereference.sglrReferenceContext;
+
+    /**
+     * @param {sglrGLContext.GLContext | WebGL2RenderingContext | sglrReferenceContext.ReferenceContext} ctx
+     * @param {number|Object} program
+     * @param {Array<number>} p0
+     * @param {Array<number>} p1
+     */
+    rrUtil.drawQuad = function(ctx, program, p0, p1) {
+        // Vertex data.
+        var hz = (p0[2] + p1[2]) * 0.5;
+        /** @type {Array<number>} */ var position = [
+        p0[0], p0[1], p0[2], 1.0,
+        p0[0], p1[1], hz, 1.0,
+        p1[0], p0[1], hz, 1.0,
+        p1[0], p1[1], p1[2], 1.0
+        ];
+        /** @type {Array<number>} */ var coord = [
+        0.0, 0.0,
+        0.0, 1.0,
+        1.0, 0.0,
+        1.0, 1.0
+        ];
+        /** @type {Array<number>} */ var indices = [0, 1, 2, 2, 1, 3];
+
+        var posLoc = ctx.getAttribLocation(program, 'a_position');
+        if (posLoc == -1)
+            throw new Error('a_position attribute is not defined.');
+
+        var coordLoc = ctx.getAttribLocation(program, 'a_coord');
+        var vaoID;
+        var bufIDs = [];
+
+        vaoID = ctx.createVertexArray();
+        ctx.bindVertexArray(vaoID);
+
+        bufIDs[0] = ctx.createBuffer();
+        bufIDs[1] = ctx.createBuffer();
+
+        ctx.useProgram(program);
+
+        if (posLoc >= 0) {
+            ctx.bindBuffer(gl.ARRAY_BUFFER, bufIDs[0]);
+            ctx.bufferData(gl.ARRAY_BUFFER, new Float32Array(position), gl.STATIC_DRAW);
+
+            ctx.enableVertexAttribArray(posLoc);
+            ctx.vertexAttribPointer(posLoc, 4, gl.FLOAT, false, 0, 0);
+
+            ctx.bindBuffer(gl.ARRAY_BUFFER, null);
+        }
+
+        if (coordLoc >= 0) {
+            ctx.bindBuffer(gl.ARRAY_BUFFER, bufIDs[1]);
+            ctx.bufferData(gl.ARRAY_BUFFER, new Float32Array(coord), gl.STATIC_DRAW);
+
+            ctx.enableVertexAttribArray(coordLoc);
+            ctx.vertexAttribPointer(coordLoc, 2, gl.FLOAT, false, 0, 0);
+
+            ctx.bindBuffer(gl.ARRAY_BUFFER, null);
+        }
+
+        {
+            var ndxID = ctx.createBuffer();
+
+            ctx.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, ndxID);
+            ctx.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(indices), gl.STATIC_DRAW);
+
+            ctx.drawElements(gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0);
+
+            ctx.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null);
+            ctx.deleteBuffer(ndxID);
+        }
+
+        ctx.bindVertexArray(null);
+        ctx.deleteBuffer(bufIDs[0]);
+        ctx.deleteBuffer(bufIDs[1]);
+        ctx.deleteVertexArray(vaoID);
+
+        if (posLoc >= 0)
+          ctx.disableVertexAttribArray(posLoc);
+
+        if (coordLoc >= 0)
+          ctx.disableVertexAttribArray(coordLoc);
+    };
+
+});