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<!--
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.
-->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>WebGL GLSL 2 types of textures on same unit conformance test.</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 id="example" width="2" height="2" style="width: 40px; height: 40px;"></canvas>
<canvas id="canvas2d" width="1" height="1" style="width: 40px; height: 40px;"></canvas>
<div id="description"></div>
<div id="console"></div>
<script id="vshader" type="x-shader/x-vertex">
attribute vec4 vPosition;
attribute vec2 texCoord0;
varying vec2 texCoord;
void main()
{
gl_Position = vPosition;
texCoord = texCoord0;
}
</script>
<script id="fshader" type="x-shader/x-fragment">
precision mediump float;
uniform sampler2D tex2d;
uniform samplerCube texCube;
varying vec2 texCoord;
void main()
{
gl_FragColor = texture2D(tex2d, texCoord) +
textureCube(texCube, vec3(0,1,0));
}
</script>
<script>
"use strict";
function init()
{
description(
"Tests that using 2 types of textures on the same texture unit" +
"and referencing them both in the same program fails as per" +
"OpenGL ES 2.0.24 spec section 2.10.4, Samplers subsection.");
var canvas2d = document.getElementById("canvas2d");
var ctx2d = canvas2d.getContext("2d");
var wtu = WebGLTestUtils;
var gl = wtu.create3DContext("example");
var program = wtu.setupProgram(gl, ["vshader", "fshader"], ["vPosition", "texCoord0"]);
var vertexObject = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);
gl.bufferData(
gl.ARRAY_BUFFER,
new Float32Array([
-1, 1,0, 1,1,0, -1,-1,0,
-1,-1,0, 1,1,0, 1,-1,0]),
gl.STATIC_DRAW);
gl.enableVertexAttribArray(0);
gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0);
var vertexObject = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);
gl.bufferData(
gl.ARRAY_BUFFER,
new Float32Array([
0,0, 1,0, 0,1,
0,1, 1,0, 1,1]),
gl.STATIC_DRAW);
gl.enableVertexAttribArray(1);
gl.vertexAttribPointer(1, 2, gl.FLOAT, false, 0, 0);
// Make texture unit 1 active.
gl.activeTexture(gl.TEXTURE1);
// Make a 2d texture
var tex2d = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, tex2d);
ctx2d.fillStyle = "rgba(0, 0, 255, 255)";
ctx2d.fillRect(0, 0, 1, 1);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas2d);
// make a cube texture
var texCube = gl.createTexture();
gl.bindTexture(gl.TEXTURE_CUBE_MAP, texCube);
ctx2d.fillStyle = "rgba(0, 255, 0, 64)";
ctx2d.fillRect(0, 0, 1, 1);
var targets = [
gl.TEXTURE_CUBE_MAP_POSITIVE_X,
gl.TEXTURE_CUBE_MAP_NEGATIVE_X,
gl.TEXTURE_CUBE_MAP_POSITIVE_Y,
gl.TEXTURE_CUBE_MAP_NEGATIVE_Y,
gl.TEXTURE_CUBE_MAP_POSITIVE_Z,
gl.TEXTURE_CUBE_MAP_NEGATIVE_Z];
for (var ii = 0; ii < targets.length; ++ii) {
gl.texImage2D(targets[ii], 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas2d);
}
var tex2dLoc = gl.getUniformLocation(program, "tex2d");
var texCubeLoc = gl.getUniformLocation(program, "texCube");
gl.uniform1i(tex2dLoc, 1);
gl.uniform1i(texCubeLoc, 1);
gl.clearColor(1,0,0,1);
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
for (var ii = 0; ii < 4; ++ii) {
var x = ii % 2;
var y = Math.floor(ii / 2);
gl.drawArrays(gl.TRIANGLES, 0, 6);
wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION,
"drawing with 2 different targets on the same texture unit should generate INVALID_VALUE");
}
}
init();
var successfullyParsed = true;
</script>
<script src="../../../js/js-test-post.js"></script>
</body>
</html>
|
