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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 imgCanvas;
var redColor = [255, 0, 0];
var greenColor = [0, 255, 0];
var blueColor = [0, 0, 255];
var cyanColor = [0, 255, 255];
var imageURLs = [resourcePath + "red-green.png",
resourcePath + "red-green-blue-cyan-4x4.png"];
function init()
{
description('Verify texImage3D and texSubImage3D code paths taking image 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];
blueColor = [0, 0, 0];
cyanColor = [0, 0, 0];
break;
case gl.RG:
case gl.RG_INTEGER:
blueColor = [0, 0, 0];
cyanColor = [0, 255, 0];
break;
default:
break;
}
gl.clearColor(0,0,0,1);
gl.clearDepth(1);
wtu.loadImagesAsync(imageURLs, runTest);
}
function uploadImageToTexture(image, useTexSubImage3D, flipY, bindingTarget,
depth, sourceSubRectangle, unpackImageHeight)
{
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
// Disable any writes to the alpha channel
gl.colorMask(1, 1, 1, 0);
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);
gl.texParameteri(bindingTarget, gl.TEXTURE_WRAP_R, gl.CLAMP_TO_EDGE);
// Set up pixel store parameters
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY);
gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false);
gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE);
var uploadWidth = image.width;
var uploadHeight = image.height;
if (sourceSubRectangle) {
gl.pixelStorei(gl.UNPACK_SKIP_PIXELS, sourceSubRectangle[0]);
gl.pixelStorei(gl.UNPACK_SKIP_ROWS, sourceSubRectangle[1]);
uploadWidth = sourceSubRectangle[2];
uploadHeight = sourceSubRectangle[3];
}
if (unpackImageHeight) {
gl.pixelStorei(gl.UNPACK_IMAGE_HEIGHT, unpackImageHeight);
}
// Upload the image into the texture
if (useTexSubImage3D) {
// Initialize the texture to black first
gl.texImage3D(bindingTarget, 0, gl[internalFormat], uploadWidth, uploadHeight, depth, 0,
gl[pixelFormat], gl[pixelType], null);
gl.texSubImage3D(bindingTarget, 0, 0, 0, 0, uploadWidth, uploadHeight, depth,
gl[pixelFormat], gl[pixelType], image);
} else {
gl.texImage3D(bindingTarget, 0, gl[internalFormat], uploadWidth, uploadHeight, depth, 0,
gl[pixelFormat], gl[pixelType], image);
}
gl.pixelStorei(gl.UNPACK_SKIP_PIXELS, 0);
gl.pixelStorei(gl.UNPACK_SKIP_ROWS, 0);
gl.pixelStorei(gl.UNPACK_IMAGE_HEIGHT, 0);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors from texture upload");
}
function runRedGreenTest(image) {
function runOneIteration(image, useTexSubImage3D, flipY, bindingTarget, topColor, bottomColor, program)
{
debug('Testing ' + (useTexSubImage3D ? 'texSubImage3D' : 'texImage3D') +
' with flipY=' + flipY + ' bindingTarget=' +
(bindingTarget == gl.TEXTURE_3D ? 'TEXTURE_3D' : 'TEXTURE_2D_ARRAY'));
uploadImageToTexture(image, useTexSubImage3D, flipY, bindingTarget, 1);
// Draw the triangles
wtu.clearAndDrawUnitQuad(gl, [0, 0, 0, 255]);
// Check a few pixels near the top and bottom and make sure they have
// the right color.
debug("Checking lower left corner");
wtu.checkCanvasRect(gl, 4, 4, 2, 2, bottomColor,
"shouldBe " + bottomColor);
debug("Checking upper left corner");
wtu.checkCanvasRect(gl, 4, gl.canvas.height - 8, 2, 2, topColor,
"shouldBe " + topColor);
}
var cases = [
{ sub: false, flipY: true, topColor: redColor, bottomColor: greenColor },
{ sub: false, flipY: false, topColor: greenColor, bottomColor: redColor },
{ sub: true, flipY: true, topColor: redColor, bottomColor: greenColor },
{ sub: true, flipY: false, topColor: greenColor, bottomColor: redColor },
];
var program = tiu.setupTexturedQuadWith3D(gl, internalFormat);
for (var i in cases) {
runOneIteration(image, cases[i].sub, cases[i].flipY, gl.TEXTURE_3D,
cases[i].topColor, cases[i].bottomColor, program);
}
program = tiu.setupTexturedQuadWith2DArray(gl, internalFormat);
for (var i in cases) {
runOneIteration(image, cases[i].sub, cases[i].flipY, gl.TEXTURE_2D_ARRAY,
cases[i].topColor, cases[i].bottomColor, program);
}
}
function runRedGreenBlueCyanTest(image) {
function runOneIteration(image, useTexSubImage3D, flipY, bindingTarget,
depth, sourceSubRectangle, unpackImageHeight,
rTextureCoord, topColor, bottomColor, program)
{
sourceSubRectangleString = '';
if (sourceSubRectangle) {
sourceSubRectangleString = ' sourceSubRectangle=' + sourceSubRectangle;
}
unpackImageHeightString = '';
if (unpackImageHeight) {
unpackImageHeightString = ' unpackImageHeight=' + unpackImageHeight;
}
debug('Testing ' + (useTexSubImage3D ? 'texSubImage3D' : 'texImage3D') +
' with flipY=' + flipY + ' bindingTarget=' +
(bindingTarget == gl.TEXTURE_3D ? 'TEXTURE_3D' : 'TEXTURE_2D_ARRAY') +
sourceSubRectangleString + ' depth=' + depth + unpackImageHeightString +
' rTextureCoord=' + rTextureCoord);
uploadImageToTexture(image, useTexSubImage3D, flipY, bindingTarget,
depth, sourceSubRectangle, unpackImageHeight);
var rCoordLocation = gl.getUniformLocation(program, 'uRCoord');
if (!rCoordLocation) {
testFailed('Shader incorrectly set up; couldn\'t find uRCoord uniform');
return;
}
gl.uniform1f(rCoordLocation, rTextureCoord);
// Draw the triangles
wtu.clearAndDrawUnitQuad(gl, [0, 0, 0, 255]);
// Check a few pixels near the top and bottom and make sure they have
// the right color.
debug("Checking lower left corner");
wtu.checkCanvasRect(gl, 4, 4, 2, 2, bottomColor,
"shouldBe " + bottomColor);
debug("Checking upper left corner");
wtu.checkCanvasRect(gl, 4, gl.canvas.height - 8, 2, 2, topColor,
"shouldBe " + topColor);
}
var cases = [
// No UNPACK_IMAGE_HEIGHT specified.
{ flipY: false, sourceSubRectangle: [0, 0, 2, 2], depth: 2, rTextureCoord: 0.0,
topColor: redColor, bottomColor: redColor },
{ flipY: false, sourceSubRectangle: [0, 0, 2, 2], depth: 2, rTextureCoord: 1.0,
topColor: blueColor, bottomColor: blueColor },
{ flipY: true, sourceSubRectangle: [0, 0, 2, 2], depth: 2, rTextureCoord: 0.0,
topColor: blueColor, bottomColor: blueColor },
{ flipY: true, sourceSubRectangle: [0, 0, 2, 2], depth: 2, rTextureCoord: 1.0,
topColor: redColor, bottomColor: redColor },
{ flipY: false, sourceSubRectangle: [2, 0, 2, 2], depth: 2, rTextureCoord: 0.0,
topColor: greenColor, bottomColor: greenColor },
{ flipY: false, sourceSubRectangle: [2, 0, 2, 2], depth: 2, rTextureCoord: 1.0,
topColor: cyanColor, bottomColor: cyanColor },
{ flipY: true, sourceSubRectangle: [2, 0, 2, 2], depth: 2, rTextureCoord: 0.0,
topColor: cyanColor, bottomColor: cyanColor },
{ flipY: true, sourceSubRectangle: [2, 0, 2, 2], depth: 2, rTextureCoord: 1.0,
topColor: greenColor, bottomColor: greenColor },
// Use UNPACK_IMAGE_HEIGHT to skip some pixels.
{ flipY: false, sourceSubRectangle: [0, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 0.0,
topColor: redColor, bottomColor: redColor },
{ flipY: false, sourceSubRectangle: [0, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 1.0,
topColor: blueColor, bottomColor: blueColor },
{ flipY: true, sourceSubRectangle: [0, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 0.0,
topColor: blueColor, bottomColor: blueColor },
{ flipY: true, sourceSubRectangle: [0, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 1.0,
topColor: redColor, bottomColor: redColor },
{ flipY: false, sourceSubRectangle: [2, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 0.0,
topColor: greenColor, bottomColor: greenColor },
{ flipY: false, sourceSubRectangle: [2, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 1.0,
topColor: cyanColor, bottomColor: cyanColor },
{ flipY: true, sourceSubRectangle: [2, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 0.0,
topColor: cyanColor, bottomColor: cyanColor },
{ flipY: true, sourceSubRectangle: [2, 0, 1, 1], depth: 2, unpackImageHeight: 2, rTextureCoord: 1.0,
topColor: greenColor, bottomColor: greenColor },
];
var program = tiu.setupTexturedQuadWith3D(gl, internalFormat);
for (var i in cases) {
runOneIteration(image, false, cases[i].flipY, gl.TEXTURE_3D,
cases[i].depth, cases[i].sourceSubRectangle,
cases[i].unpackImageHeight, cases[i].rTextureCoord,
cases[i].topColor, cases[i].bottomColor,
program);
runOneIteration(image, true, cases[i].flipY, gl.TEXTURE_3D,
cases[i].depth, cases[i].sourceSubRectangle,
cases[i].unpackImageHeight, cases[i].rTextureCoord,
cases[i].topColor, cases[i].bottomColor,
program);
}
program = tiu.setupTexturedQuadWith2DArray(gl, internalFormat);
for (var i in cases) {
runOneIteration(image, false, cases[i].flipY, gl.TEXTURE_2D_ARRAY,
cases[i].depth, cases[i].sourceSubRectangle,
cases[i].unpackImageHeight, cases[i].rTextureCoord,
cases[i].topColor, cases[i].bottomColor,
program);
runOneIteration(image, true, cases[i].flipY, gl.TEXTURE_2D_ARRAY,
cases[i].depth, cases[i].sourceSubRectangle,
cases[i].unpackImageHeight, cases[i].rTextureCoord,
cases[i].topColor, cases[i].bottomColor,
program);
}
}
function runTest(imageMap)
{
runRedGreenTest(imageMap[imageURLs[0]]);
runRedGreenBlueCyanTest(imageMap[imageURLs[1]]);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "should be no errors");
finishTest();
}
return init;
}