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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">
<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>
<div id="description"></div>
<div id="console"></div>
<script>
"use strict";
var wtu = WebGLTestUtils;
description("Verify RGB/RGB8 textures and renderbuffers support");
var gl = wtu.create3DContext(undefined, undefined, 2);
function testRenderbuffer(width, height) {
var samples = gl.getInternalformatParameter(gl.RENDERBUFFER, gl.RGB8, gl.SAMPLES);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors from getInternalformatParameter()");
if (!samples || samples.length == 0) {
testFailed("getInternalformatParameter on RGB8 fails to return valid samples");
return;
}
for (var idx = 0; idx < samples.length + 2; ++idx) {
debug("");
var renderbuffer = gl.createRenderbuffer();
gl.bindRenderbuffer(gl.RENDERBUFFER, renderbuffer);
var sampleCount = 0;
switch (idx) {
case samples.length:
sampleCount = 0;
break;
case samples.length + 1:
sampleCount = -1; // non multisampled
break;
default:
sampleCount = samples[idx];
}
if (sampleCount < 0) {
debug("test non-multisampled RGB8 renderbuffer");
gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGB8, 2, 2);
} else {
debug("test RGB8 renderbuffer with " + sampleCount + " samples");
gl.renderbufferStorageMultisample(gl.RENDERBUFFER, sampleCount, gl.RGB8, width, height);
}
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors from renderbufferStorage{Multisample}");
var fbo = gl.createFramebuffer();
gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, renderbuffer);
if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) {
testFailed("framebuffer with renderbuffer is incomplete");
} else {
testPassed("framebuffer with renderbuffer is complete");
}
gl.clearColor(1, 0, 1, 1);
gl.clear(gl.COLOR_BIT);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors from clear()");
}
}
function testTexture(width, height) {
var formats = [ "RGB", "RGB8" ];
for (var idx = 0; idx < formats.length; ++idx) {
debug("");
debug("test texture format " + formats[idx]);
var internalformat = gl[formats[idx]];
var tex = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, tex);
gl.texImage2D(gl.TEXTURE_2D, 0, internalformat, width, height, 0, gl.RGB, gl.UNSIGNED_BYTE, null);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors from texture setup");
var fbo = gl.createFramebuffer();
gl.bindFramebuffer(gl.FRAMEBUFFER, fbo);
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex, 0);
if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) {
testFailed("framebuffer with texture is incomplete");
} else {
testPassed("framebuffer with texture is complete");
}
gl.clearColor(1, 0, 1, 1);
gl.clear(gl.COLOR_BIT);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors from clear()");
}
}
if (!gl) {
testFailed('canvas.getContext() failed');
} else {
testRenderbuffer(2, 2);
testTexture(2, 2);
}
var successfullyParsed = true;
</script>
<script src="../../js/js-test-post.js"></script>
</body>
</html>