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"use strict";
description("This test verifies the functionality of the EXT_texture_filter_anisotropic extension, if it is available.");
debug("");
let wtu = WebGLTestUtils;
let canvas = document.getElementById("canvas");
let gl = wtu.create3DContext(canvas, undefined, contextVersion);
let ext = null;
let sampler;
if (!gl) {
testFailed("WebGL context does not exist");
} else {
testPassed("WebGL context exists");
// Run tests with extension disabled
runHintTestDisabled();
if (contextVersion >= 2) {
runSamplerTestDisabled();
}
// Query the extension and store globally so shouldBe can access it
ext = wtu.getExtensionWithKnownPrefixes(gl, "EXT_texture_filter_anisotropic");
if (!ext) {
testPassed("No EXT_texture_filter_anisotropic support -- this is legal");
runSupportedTest(false);
} else {
testPassed("Successfully enabled EXT_texture_filter_anisotropic extension");
runSupportedTest(true);
runHintTestEnabled();
if (contextVersion >= 2) {
runSamplerTestEnabled();
}
}
}
function runSupportedTest(extensionEnabled) {
if (wtu.getSupportedExtensionWithKnownPrefixes(gl, "EXT_texture_filter_anisotropic") !== undefined) {
if (extensionEnabled) {
testPassed("EXT_texture_filter_anisotropic listed as supported and getExtension succeeded");
} else {
testFailed("EXT_texture_filter_anisotropic listed as supported but getExtension failed");
}
} else {
if (extensionEnabled) {
testFailed("EXT_texture_filter_anisotropic not listed as supported but getExtension succeeded");
} else {
testPassed("EXT_texture_filter_anisotropic not listed as supported and getExtension failed -- this is legal");
}
}
}
function runHintTestDisabled() {
debug("Testing MAX_TEXTURE_MAX_ANISOTROPY_EXT with extension disabled");
const MAX_TEXTURE_MAX_ANISOTROPY_EXT = 0x84FF;
shouldBeNull(`gl.getParameter(${MAX_TEXTURE_MAX_ANISOTROPY_EXT})`);
wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, "MAX_TEXTURE_MAX_ANISOTROPY_EXT should not be queryable if extension is disabled");
debug("Testing TEXTURE_MAX_ANISOTROPY_EXT with extension disabled");
const TEXTURE_MAX_ANISOTROPY_EXT = 0x84FE;
let texture = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, texture);
shouldBeNull(`gl.getTexParameter(gl.TEXTURE_2D, ${TEXTURE_MAX_ANISOTROPY_EXT})`);
wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, "TEXTURE_MAX_ANISOTROPY_EXT should not be queryable if extension is disabled");
gl.texParameterf(gl.TEXTURE_2D, TEXTURE_MAX_ANISOTROPY_EXT, 1);
wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, "TEXTURE_MAX_ANISOTROPY_EXT should not be settable if extension is disabled");
gl.texParameteri(gl.TEXTURE_2D, TEXTURE_MAX_ANISOTROPY_EXT, 1);
wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, "TEXTURE_MAX_ANISOTROPY_EXT should not be settable if extension is disabled");
gl.deleteTexture(texture);
}
function runHintTestEnabled() {
debug("Testing MAX_TEXTURE_MAX_ANISOTROPY_EXT with extension enabled");
shouldBe("ext.MAX_TEXTURE_MAX_ANISOTROPY_EXT", "0x84FF");
let max_anisotropy = gl.getParameter(ext.MAX_TEXTURE_MAX_ANISOTROPY_EXT);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "MAX_TEXTURE_MAX_ANISOTROPY_EXT query should succeed if extension is enabled");
if (max_anisotropy >= 2) {
testPassed("Minimum value of MAX_TEXTURE_MAX_ANISOTROPY_EXT is 2.0");
} else {
testFailed("Minimum value of MAX_TEXTURE_MAX_ANISOTROPY_EXT is 2.0, returned values was: " + max_anisotropy);
}
// TODO make a texture and verify initial value == 1 and setting to less than 1 is invalid value
debug("Testing TEXTURE_MAX_ANISOTROPY_EXT with extension disabled");
shouldBe("ext.TEXTURE_MAX_ANISOTROPY_EXT", "0x84FE");
let texture = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, texture);
let queried_value = gl.getTexParameter(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "TEXTURE_MAX_ANISOTROPY_EXT query should succeed if extension is enabled");
if (queried_value == 1) {
testPassed("Initial value of TEXTURE_MAX_ANISOTROPY_EXT is 1.0");
} else {
testFailed("Initial value of TEXTURE_MAX_ANISOTROPY_EXT should be 1.0, returned value was: " + queried_value);
}
gl.texParameterf(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT, 0);
wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "texParameterf TEXTURE_MAX_ANISOTROPY_EXT set to < 1 should be an invalid value");
gl.texParameteri(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT, 0);
wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, "texParameteri TEXTURE_MAX_ANISOTROPY_EXT set to < 1 should be an invalid value");
gl.texParameterf(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT, max_anisotropy);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texParameterf TEXTURE_MAX_ANISOTROPY_EXT set to >= 2 should succeed");
gl.texParameteri(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT, max_anisotropy);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texParameteri TEXTURE_MAX_ANISOTROPY_EXT set to >= 2 should succeed");
queried_value = gl.getTexParameter(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT);
if (queried_value == max_anisotropy) {
testPassed("Set value of TEXTURE_MAX_ANISOTROPY_EXT matches expecation");
} else {
testFailed("Set value of TEXTURE_MAX_ANISOTROPY_EXT should be: " + max_anisotropy + " , returned value was: " + queried_value);
}
gl.texParameterf(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT, 1.5);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "texParameterf TEXTURE_MAX_ANISOTROPY_EXT set to 1.5 should succeed");
queried_value = gl.getTexParameter(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT);
if (queried_value == 1.5) {
testPassed("Set value of TEXTURE_MAX_ANISOTROPY_EXT matches expecation");
} else {
testFailed("Set value of TEXTURE_MAX_ANISOTROPY_EXT should be: " + 1.5 + " , returned value was: " + queried_value);
}
gl.deleteTexture(texture);
}
function runSamplerTestDisabled() {
sampler = gl.createSampler();
const TEXTURE_MAX_ANISOTROPY_EXT = 0x84FE;
gl.samplerParameterf(sampler, TEXTURE_MAX_ANISOTROPY_EXT, 1.0);
wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, "setting TEXTURE_MAX_ANISOTROPY_EXT on sampler without extension enabled should fail");
shouldBeNull(`gl.getSamplerParameter(sampler, ${TEXTURE_MAX_ANISOTROPY_EXT})`);
wtu.glErrorShouldBe(gl, gl.INVALID_ENUM, "querying TEXTURE_MAX_ANISOTROPY_EXT on sampler without extension enabled should fail");
gl.deleteSampler(sampler);
}
function runSamplerTestEnabled() {
let sampler = gl.createSampler();
gl.samplerParameterf(sampler, ext.TEXTURE_MAX_ANISOTROPY_EXT, 1.5);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "setting TEXTURE_MAX_ANISOTROPY_EXT on sampler should succeed");
let queried_value = gl.getSamplerParameter(sampler, ext.TEXTURE_MAX_ANISOTROPY_EXT);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "querying TEXTURE_MAX_ANISOTROPY_EXT on sampler should succeed");
if (queried_value == 1.5) {
testPassed("Set value of TEXTURE_MAX_ANISOTROPY_EXT on sampler matches expecation");
} else {
testFailed("Set value of TEXTURE_MAX_ANISOTROPY_EXT on sampler should be: " + 1.5 + " , returned value was: " + queried_value);
}
gl.deleteSampler(sampler);
}
debug("");
var successfullyParsed = true;
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