/*
** Copyright (c) 2014 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and/or associated documentation files (the
** "Materials"), to deal in the Materials without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Materials, and to
** permit persons to whom the Materials are furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be included
** in all copies or substantial portions of the Materials.
**
** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
*/
function generateTest(internalFormat, pixelFormat, pixelType, prologue, resourcePath, defaultContextVersion) {
var wtu = WebGLTestUtils;
var tiu = TexImageUtils;
var gl = null;
var successfullyParsed = false;
var redColor = [255, 0, 0];
var greenColor = [0, 255, 0];
function init()
{
description('Verify texImage2D and texSubImage2D code paths taking webgl 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:
greenColor = [0, 0, 0];
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.viewport(0, 0, width, height);
ctx.enable(ctx.SCISSOR_TEST);
ctx.scissor(0, 0, width, halfHeight);
ctx.clearColor(1.0, 0, 0, 1.0);
ctx.clear(ctx.COLOR_BUFFER_BIT);
ctx.scissor(0, halfHeight, width, height - halfHeight);
ctx.clearColor(0.0, 1.0, 0, 1.0);
ctx.clear(ctx.COLOR_BUFFER_BIT);
ctx.disable(ctx.SCISSOR_TEST);
}
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, useTexSubImage2D, flipY, program, bindingTarget, opt_texture)
{
debug('Testing ' + (useTexSubImage2D ? 'texSubImage2D' : 'texImage2D') + ' with flipY=' +
flipY + ' bindingTarget=' + (bindingTarget == gl.TEXTURE_2D ? 'TEXTURE_2D' : 'TEXTURE_CUBE_MAP') +
' canvas size: ' + canvas.width + 'x' + canvas.height + ' 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_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);');
var targets = [gl.TEXTURE_2D];
if (bindingTarget == gl.TEXTURE_CUBE_MAP) {
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];
}
// Upload the image into the texture
for (var tt = 0; tt < targets.length; ++tt) {
// Initialize the texture to black first
if (useTexSubImage2D) {
gl.texImage2D(targets[tt], 0, gl[internalFormat], canvas.width, canvas.height, 0,
gl[pixelFormat], gl[pixelType], null);
gl.texSubImage2D(targets[tt], 0, 0, 0, gl[pixelFormat], gl[pixelType], canvas);
} else {
gl.texImage2D(targets[tt], 0, gl[internalFormat], gl[pixelFormat], gl[pixelType], canvas);
}
}
var width = gl.canvas.width;
var height = gl.canvas.height;
var halfWidth = Math.floor(width / 2);
var halfHeight = Math.floor(height / 2);
var top = flipY ? (height - halfHeight) : 0;
var bottom = flipY ? 0 : (height - halfHeight);
var loc;
var skipCorner = false;
if (bindingTarget == gl.TEXTURE_CUBE_MAP) {
loc = gl.getUniformLocation(program, "face");
switch (gl[pixelFormat]) {
case gl.RED_INTEGER:
case gl.RG_INTEGER:
case gl.RGB_INTEGER:
case gl.RGBA_INTEGER:
// https://github.com/KhronosGroup/WebGL/issues/1819
skipCorner = true;
break;
}
}
for (var tt = 0; tt < targets.length; ++tt) {
if (bindingTarget == gl.TEXTURE_CUBE_MAP) {
gl.uniform1i(loc, targets[tt]);
}
// Draw the triangles
wtu.clearAndDrawUnitQuad(gl, [0, 255, 0, 255]);
// Check the top and bottom halves and make sure they have the right color.
debug("Checking " + (flipY ? "top" : "bottom"));
wtu.checkCanvasRect(gl, 0, bottom, (skipCorner && !flipY) ? halfWidth : width, halfHeight, redColor,
"shouldBe " + redColor);
debug("Checking " + (flipY ? "bottom" : "top"));
wtu.checkCanvasRect(gl, 0, top, (skipCorner && flipY) ? halfWidth : width, halfHeight, greenColor,
"shouldBe " + greenColor);
}
if (false) {
var ma = wtu.makeImageFromCanvas(canvas);
document.getElementById("console").appendChild(ma);
var m = wtu.makeImageFromCanvas(gl.canvas);
document.getElementById("console").appendChild(m);
document.getElementById("console").appendChild(document.createElement("hr"));
}
return texture;
}
function runTest()
{
var ctx = wtu.create3DContext();
var canvas = ctx.canvas;
var cases = [
{ sub: false, flipY: true, init: setCanvasToMin },
{ sub: false, flipY: false },
{ sub: true, flipY: true },
{ sub: true, flipY: false },
{ sub: false, flipY: true, init: setCanvasTo257x257 },
{ sub: false, flipY: false },
{ sub: true, flipY: true },
{ sub: true, flipY: false },
];
function runTexImageTest(bindingTarget) {
var program;
if (bindingTarget == gl.TEXTURE_2D) {
program = tiu.setupTexturedQuad(gl, internalFormat);
} else {
program = tiu.setupTexturedQuadWithCubeMap(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(ctx, bindingTarget);
}
texture = runOneIteration(canvas, c.sub, c.flipY, program, bindingTarget, texture);
// for the first 2 iterations always make a new texture.
if (count > 2) {
texture = undefined;
}
++caseNdx;
if (caseNdx == cases.length) {
caseNdx = 0;
--count;
if (!count) {
resolve("SUCCESS");
return;
}
}
wtu.waitForComposite(runNextTest);
}
runNextTest();
});
}
runTexImageTest(gl.TEXTURE_2D).then(function(val) {
runTexImageTest(gl.TEXTURE_CUBE_MAP).then(function(val) {
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");
finishTest();
});
});
}
return init;
}