summaryrefslogtreecommitdiffstats
path: root/dom/canvas/test/webgl-conf/checkout/conformance/extensions/ext-clip-control.html
diff options
context:
space:
mode:
Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/extensions/ext-clip-control.html')
-rw-r--r--dom/canvas/test/webgl-conf/checkout/conformance/extensions/ext-clip-control.html185
1 files changed, 185 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/extensions/ext-clip-control.html b/dom/canvas/test/webgl-conf/checkout/conformance/extensions/ext-clip-control.html
new file mode 100644
index 0000000000..f5c557c839
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/extensions/ext-clip-control.html
@@ -0,0 +1,185 @@
+<!--
+Copyright (c) 2023 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.
+-->
+
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>WebGL EXT_clip_control Conformance Tests</title>
+<LINK rel="stylesheet" href="../../resources/js-test-style.css"/>
+<script src="../../js/js-test-pre.js"></script>
+<script src="../../js/webgl-test-utils.js"></script>
+</head>
+<body>
+<canvas width="32" height="32" id="c"></canvas>
+<div id="description"></div>
+<div id="console"></div>
+<script>
+"use strict";
+description("This test verifies the functionality of the EXT_clip_control extension, if it is available.");
+
+debug("");
+
+var wtu = WebGLTestUtils;
+var gl = wtu.create3DContext("c");
+var ext;
+const w = gl.drawingBufferWidth;
+const h = gl.drawingBufferHeight;
+
+function runTestNoExtension() {
+ debug("");
+ debug("Check the parameters without the extension");
+ shouldBeNull("gl.getParameter(0x935C /* CLIP_ORIGIN_EXT */)");
+ wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, "parameter unknown without enabling the extension");
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");
+ shouldBeNull("gl.getParameter(0x935D /* CLIP_DEPTH_MODE_EXT */)");
+ wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, "parameter unknown without enabling the extension");
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");
+}
+
+function checkEnums() {
+ debug("");
+ debug("Check enums");
+ shouldBe("ext.LOWER_LEFT_EXT", "0x8CA1");
+ shouldBe("ext.UPPER_LEFT_EXT", "0x8CA2");
+
+ shouldBe("ext.NEGATIVE_ONE_TO_ONE_EXT", "0x935E");
+ shouldBe("ext.ZERO_TO_ONE_EXT", "0x935F");
+
+ shouldBe("ext.CLIP_ORIGIN_EXT", "0x935C");
+ shouldBe("ext.CLIP_DEPTH_MODE_EXT", "0x935D");
+}
+
+function checkQueries() {
+ debug("");
+ debug("Check default state");
+ shouldBe('gl.getParameter(ext.CLIP_ORIGIN_EXT)', 'ext.LOWER_LEFT_EXT');
+ shouldBe('gl.getParameter(ext.CLIP_DEPTH_MODE_EXT)', 'ext.NEGATIVE_ONE_TO_ONE_EXT');
+ debug("");
+ debug("Check state updates using the new function");
+ ext.clipControlEXT(ext.UPPER_LEFT_EXT, ext.ZERO_TO_ONE_EXT);
+ shouldBe('gl.getParameter(ext.CLIP_ORIGIN_EXT)', 'ext.UPPER_LEFT_EXT');
+ shouldBe('gl.getParameter(ext.CLIP_DEPTH_MODE_EXT)', 'ext.ZERO_TO_ONE_EXT');
+ ext.clipControlEXT(ext.LOWER_LEFT_EXT, ext.ZERO_TO_ONE_EXT);
+ shouldBe('gl.getParameter(ext.CLIP_ORIGIN_EXT)', 'ext.LOWER_LEFT_EXT');
+ shouldBe('gl.getParameter(ext.CLIP_DEPTH_MODE_EXT)', 'ext.ZERO_TO_ONE_EXT');
+ ext.clipControlEXT(ext.UPPER_LEFT_EXT, ext.NEGATIVE_ONE_TO_ONE_EXT);
+ shouldBe('gl.getParameter(ext.CLIP_ORIGIN_EXT)', 'ext.UPPER_LEFT_EXT');
+ shouldBe('gl.getParameter(ext.CLIP_DEPTH_MODE_EXT)', 'ext.NEGATIVE_ONE_TO_ONE_EXT');
+ ext.clipControlEXT(ext.LOWER_LEFT_EXT, ext.NEGATIVE_ONE_TO_ONE_EXT);
+ shouldBe('gl.getParameter(ext.CLIP_ORIGIN_EXT)', 'ext.LOWER_LEFT_EXT');
+ shouldBe('gl.getParameter(ext.CLIP_DEPTH_MODE_EXT)', 'ext.NEGATIVE_ONE_TO_ONE_EXT');
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");
+}
+
+function checkDepthMode() {
+ debug("");
+ debug("Check depth mode toggling");
+
+ gl.enable(gl.DEPTH_TEST);
+ gl.clear(gl.DEPTH_BUFFER_BIT);
+
+ const program = wtu.setupProgram(gl, [wtu.simpleVertexShader,
+ wtu.simpleColorFragmentShader]);
+ gl.useProgram(program);
+ const colorLoc = gl.getUniformLocation(program, "u_color");
+ wtu.setupUnitQuad(gl);
+
+ // Draw red at 0 with the default depth mode
+ gl.uniform4f(colorLoc, 1, 0, 0, 1);
+ ext.clipControlEXT(ext.LOWER_LEFT_EXT, ext.NEGATIVE_ONE_TO_ONE_EXT);
+ wtu.drawUnitQuad(gl);
+ wtu.checkCanvasRect(gl, 0, 0, w, h, [255, 0, 0, 255]);
+
+ // Draw green at 0, depth test must fail
+ gl.uniform4f(colorLoc, 0, 1, 0, 1);
+ wtu.drawUnitQuad(gl);
+ wtu.checkCanvasRect(gl, 0, 0, w, h, [255, 0, 0, 255]);
+
+ // Draw green at 0 after switching the depth mode
+ ext.clipControlEXT(ext.LOWER_LEFT_EXT, ext.ZERO_TO_ONE_EXT);
+ wtu.drawUnitQuad(gl);
+ wtu.checkCanvasRect(gl, 0, 0, w, h, [0, 255, 0, 255]);
+
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");
+}
+
+function checkClipOrigin() {
+ debug("");
+ debug("Check clip origin toggling");
+
+ gl.disable(gl.DEPTH_TEST);
+
+ const vertexShader = `
+ attribute vec4 vPosition;
+ varying float y;
+ void main() {
+ gl_Position = vPosition;
+ y = vPosition.y;
+ }`;
+ const fragmentShader = `
+ precision mediump float;
+ varying float y;
+ void main() {
+ if (y > 0.0) {
+ gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);
+ } else {
+ gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);
+ }
+ }`;
+
+ const program = wtu.setupProgram(gl, [vertexShader, fragmentShader]);
+ gl.useProgram(program);
+
+ wtu.setupUnitQuad(gl);
+
+ ext.clipControlEXT(ext.LOWER_LEFT_EXT, ext.NEGATIVE_ONE_TO_ONE_EXT);
+ wtu.drawUnitQuad(gl);
+ wtu.checkCanvasRect(gl, 0, 0, w, h / 2 - 2, [0, 255, 0, 255]);
+ wtu.checkCanvasRect(gl, 0, h / 2 + 2, w, h / 2 - 2, [255, 0, 0, 255]);
+
+ ext.clipControlEXT(ext.UPPER_LEFT_EXT, ext.NEGATIVE_ONE_TO_ONE_EXT);
+ wtu.drawUnitQuad(gl);
+ wtu.checkCanvasRect(gl, 0, 0, w, h / 2 - 2, [255, 0, 0, 255]);
+ wtu.checkCanvasRect(gl, 0, h / 2 + 2, w, h / 2 - 2, [0, 255, 0, 255]);
+
+ wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");
+}
+
+function runTestExtension() {
+ checkEnums();
+ checkQueries();
+ checkDepthMode();
+ checkClipOrigin();
+}
+
+function runTest() {
+ if (!gl) {
+ testFailed("WebGL context does not exist");
+ return;
+ }
+ testPassed("WebGL context exists");
+
+ runTestNoExtension();
+
+ ext = gl.getExtension("EXT_clip_control");
+
+ wtu.runExtensionSupportedTest(gl, "EXT_clip_control", ext !== null);
+
+ if (ext !== null) {
+ runTestExtension();
+ } else {
+ testPassed("No EXT_clip_control support -- this is legal");
+ }
+}
+
+runTest();
+
+var successfullyParsed = true;
+</script>
+<script src="../../js/js-test-post.js"></script>
+</body>
+</html>
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-23 09:49:43 +0000