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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.
*/
function generateTest(internalFormat, pixelFormat, pixelType, prologue, resourcePath, defaultContextVersion) {
var wtu = WebGLTestUtils;
var tiu = TexImageUtils;
var gl = null;
var successfullyParsed = false;
var whiteColor = [255, 255, 255, 255];
var redColor = [255, 0, 0];
var greenColor = [0, 255, 0];
function init()
{
description('Verify texImage3D and texSubImage3D code paths taking canvas elements (' + internalFormat + '/' + pixelFormat + '/' + pixelType + ')');
// Set the default context version while still allowing the webglVersion URL query string to override it.
wtu.setDefault3DContextVersion(defaultContextVersion);
gl = wtu.create3DContext("example");
if (!prologue(gl)) {
finishTest();
return;
}
switch (gl[pixelFormat]) {
case gl.RED:
case gl.RED_INTEGER:
whiteColor = [255, 0, 0, 255];
greenColor = [0, 0, 0];
break;
case gl.RG:
case gl.RG_INTEGER:
whiteColor = [255, 255, 0, 255];
break;
default:
break;
}
gl.clearColor(0,0,0,1);
gl.clearDepth(1);
runTest();
}
function setCanvasToRedGreen(ctx) {
var width = ctx.canvas.width;
var height = ctx.canvas.height;
var halfHeight = Math.floor(height / 2);
ctx.fillStyle = "#ff0000";
ctx.fillRect(0, 0, width, halfHeight);
ctx.fillStyle = "#00ff00";
ctx.fillRect(0, halfHeight, width, height - halfHeight);
}
function drawTextInCanvas(ctx, bindingTarget) {
var width = ctx.canvas.width;
var height = ctx.canvas.height;
ctx.fillStyle = "#ffffff";
ctx.fillRect(0, 0, width, height);
ctx.font = '20pt Arial';
ctx.fillStyle = 'black';
ctx.textAlign = "center";
ctx.textBaseline = "middle";
ctx.fillText("1234567890", width / 2, height / 4);
}
function setCanvasTo257x257(ctx, bindingTarget) {
ctx.canvas.width = 257;
ctx.canvas.height = 257;
setCanvasToRedGreen(ctx);
}
function setCanvasToMin(ctx, bindingTarget) {
if (bindingTarget == gl.TEXTURE_CUBE_MAP) {
// cube map texture must be square.
ctx.canvas.width = 2;
} else {
ctx.canvas.width = 1;
}
ctx.canvas.height = 2;
setCanvasToRedGreen(ctx);
}
function runOneIteration(canvas, flipY, program, bindingTarget, opt_texture, opt_fontTest)
{
var objType = 'canvas';
if (canvas.transferToImageBitmap)
objType = 'OffscreenCanvas';
debug('Testing ' + ' with flipY=' + flipY + ' bindingTarget=' + (bindingTarget == gl.TEXTURE_3D ? 'TEXTURE_3D' : 'TEXTURE_2D_ARRAY') +
' source object: ' + objType + ' canvas size: ' + canvas.width + 'x' + canvas.height + (opt_fontTest ? " with fonts" : " with red-green"));
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
if (!opt_texture) {
var texture = gl.createTexture();
// Bind the texture to texture unit 0
gl.bindTexture(bindingTarget, texture);
// Set up texture parameters
gl.texParameteri(bindingTarget, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(bindingTarget, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_R, gl.CLAMP_TO_EDGE);
gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
} else {
var texture = opt_texture;
}
// Set up pixel store parameters
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY);
gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false);
wtu.failIfGLError(gl, 'gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE);');
// Initialize the texture to black first
gl.texImage3D(bindingTarget, 0, gl[internalFormat], canvas.width, canvas.height, 1 /* depth */, 0,
gl[pixelFormat], gl[pixelType], null);
gl.texSubImage3D(bindingTarget, 0, 0, 0, 0, canvas.width, canvas.height, 1 /* depth */,
gl[pixelFormat], gl[pixelType], canvas);
var width = gl.canvas.width;
var height = gl.canvas.height;
var halfHeight = Math.floor(height / 2);
var top = flipY ? 0 : (height - halfHeight);
var bottom = flipY ? (height - halfHeight) : 0;
// Draw the triangles
wtu.clearAndDrawUnitQuad(gl, [0, 255, 0, 255]);
if (opt_fontTest) {
// check half is a solid color.
wtu.checkCanvasRect(
gl, 0, top, width, halfHeight,
whiteColor,
"should be white");
// check other half is not a solid color.
wtu.checkCanvasRectColor(
gl, 0, bottom, width, halfHeight,
whiteColor, 0,
function() {
testFailed("font missing");
},
function() {
testPassed("font renderered");
},
debug);
} else {
// Check the top and bottom halves and make sure they have the right color.
debug("Checking " + (flipY ? "top" : "bottom"));
wtu.checkCanvasRect(gl, 0, bottom, width, halfHeight, redColor,
"shouldBe " + redColor);
debug("Checking " + (flipY ? "bottom" : "top"));
wtu.checkCanvasRect(gl, 0, top, width, halfHeight, greenColor,
"shouldBe " + greenColor);
}
return texture;
}
function runTest(canvas)
{
var canvas = document.createElement('canvas');
var cases = [
{ canvas: canvas, flipY: true, font: false, init: setCanvasToMin },
{ canvas: canvas, flipY: false, font: false },
{ canvas: canvas, flipY: true, font: false, init: setCanvasTo257x257 },
{ canvas: canvas, flipY: false, font: false },
{ canvas: canvas, flipY: true, font: true, init: drawTextInCanvas },
{ canvas: canvas, flipY: false, font: true },
];
if (window.OffscreenCanvas) {
var offscreenCanvas = new OffscreenCanvas(1, 1);
cases = cases.concat([
{ canvas: offscreenCanvas, flipY: true, font: false, init: setCanvasToMin },
{ canvas: offscreenCanvas, flipY: false, font: false },
]);
}
function runTexImageTest(bindingTarget) {
var program;
if (bindingTarget == gl.TEXTURE_3D) {
program = tiu.setupTexturedQuadWith3D(gl, internalFormat);
} else { // TEXTURE_2D_ARRAY
program = tiu.setupTexturedQuadWith2DArray(gl, internalFormat);
}
return new Promise(function(resolve, reject) {
var count = 4;
var caseNdx = 0;
var texture = undefined;
function runNextTest() {
var c = cases[caseNdx];
if (c.init) {
c.init(c.canvas.getContext('2d'), bindingTarget);
}
texture = runOneIteration(c.canvas, c.flipY, program, bindingTarget, texture, c.font);
// for the first 2 iterations always make a new texture.
if (count < 2) {
gl.deleteTexture(texture);
texture = undefined;
}
++caseNdx;
if (caseNdx == cases.length) {
caseNdx = 0;
--count;
if (!count) {
resolve("SUCCESS");
return;
}
}
wtu.waitForComposite(runNextTest);
}
runNextTest();
});
}
runTexImageTest(gl.TEXTURE_3D).then(function(val) {
runTexImageTest(gl.TEXTURE_2D_ARRAY).then(function(val) {
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");
finishTest();
});
});
}
return init;
}
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