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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">
<title>WebGL texImage2D conformance test.</title>
<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>
<canvas id="example" width="256" height="16" style="width: 256px; height: 48px;"></canvas>
<div id="description"></div>
<div id="console"></div>
<script>
"use strict";
enableJSTestPreVerboseLogging();
description("Test texImage2D conversions.");
var wtu = WebGLTestUtils;
var gl = wtu.create3DContext("example");
gl.disable(gl.DITHER);
var program = wtu.setupTexturedQuad(gl);
var successfullyParsed;
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
var imgURLs = [
'../../../resources/1-channel.jpg',
'../../../resources/gray-ramp-256-with-128-alpha.png',
'../../../resources/gray-ramp-256.png',
'../../../resources/gray-ramp-default-gamma.png',
'../../../resources/gray-ramp-gamma0.1.png',
'../../../resources/gray-ramp-gamma1.0.png',
'../../../resources/gray-ramp-gamma2.0.png',
'../../../resources/gray-ramp-gamma4.0.png',
'../../../resources/gray-ramp-gamma9.0.png',
'../../../resources/gray-ramp.png',
'../../../resources/zero-alpha.png',
'../../../resources/3x3.png',
'../../../resources/blue-1x1.jpg',
'../../../resources/red-indexed.png',
'../../../resources/transparent-on-left-indexed.png',
'../../../resources/green-2x2-16bit.png',
'../../../resources/small-square-with-colorspin-profile.jpg',
'../../../resources/small-square-with-colorspin-profile.png',
'../../../resources/small-square-with-cie-rgb-profile.png',
'../../../resources/small-square-with-colormatch-profile.png',
'../../../resources/small-square-with-e-srgb-profile.png',
'../../../resources/small-square-with-smpte-c-profile.png',
'../../../resources/small-square-with-srgb-iec61966-2.1-profile.png'];
wtu.loadImagesAsync(imgURLs, runTests);
function runTests(imgs) {
var loc = gl.getUniformLocation(program, "tex");
gl.uniform1i(loc, 0);
gl.disable(gl.BLEND);
gl.disable(gl.DEPTH_TEST);
var width = gl.canvas.width;
var height = gl.canvas.height;
function checkPixel(x, y, color) {
wtu.checkCanvasRect(gl, x, y, 1, 1, color);
}
function checkPixelRange(x, y, color, allowedRange) {
var msg = "pixel " + x + ", " + y + " should be within " +
allowedRange + " units of " +
color[0] + ", " +
color[1] + ", " +
color[2] + ", " +
color[3];
wtu.checkCanvasRect(gl, x, y, 1, 1, color, msg, allowedRange);
}
var tex = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, tex);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
var buf = new Uint8Array(width * height * 4);
debug("");
debug("check pixels are NOT pre-multiplied");
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE,
imgs['../../../resources/zero-alpha.png']);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup");
wtu.clearAndDrawUnitQuad(gl);
var left = 0;
var middle = Math.floor(width / 2);
var right = width - 1;
var bottom = 0;
var center = Math.floor(height / 2);
var top = height - 1;
checkPixel(left, top, [ 0, 0, 0, 255]);
checkPixel(middle, top, [255, 0, 255, 255]);
checkPixel(right, top, [ 0, 0, 255, 255]);
checkPixel(left, center, [128, 128, 128, 255]);
checkPixel(middle, center, [255, 255, 255, 255]);
checkPixel(right, center, [ 0, 255, 255, 255]);
checkPixel(left, bottom, [255, 0, 0, 255]);
checkPixel(middle, bottom, [255, 255, 0, 255]);
checkPixel(right, bottom, [ 0, 255, 0, 255]);
debug("");
debug("check quantization");
var quantInfo = [
{format: gl.RGBA, type: gl.UNSIGNED_BYTE, counts: [256, 256, 256, 256]},
{format: gl.RGBA, type: gl.UNSIGNED_SHORT_4_4_4_4, counts: [ 16, 16, 16, 16]},
{format: gl.RGB, type: gl.UNSIGNED_SHORT_5_6_5, counts: [ 32, 64, 32, 1]},
{format: gl.RGBA, type: gl.UNSIGNED_SHORT_5_5_5_1, counts: [ 32, 32, 32, 2]}];
for (var qq = 0; qq < quantInfo.length; ++qq) {
var info = quantInfo[qq];
gl.texImage2D(
gl.TEXTURE_2D, 0, info.format, info.format, info.type,
imgs['../../../resources/gray-ramp-256.png']);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
wtu.clearAndDrawUnitQuad(gl);
gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf);
var counts = [{ }, { }, { }, { }];
var numUniqueValues = [0, 0, 0, 0];
// Count the number of unique values in each channel.
for (var ii = 0; ii < width * height * 4; ii += 4) {
for (var jj = 0; jj < 4; ++jj) {
var v = buf[ii + jj];
if (!counts[jj][v]) {
counts[jj][v] = 1;
++numUniqueValues[jj];
} else {
++counts[jj][v];
}
}
}
for (var ii = 0; ii < 4; ++ii) {
assertMsg(numUniqueValues[ii] == info.counts[ii],
"There should be " + info.counts[ii] +
" unique values in channel " + ii + ". Found " +
numUniqueValues[ii]);
}
}
debug("");
debug("Check that gamma settings don't effect 8bit pngs");
wtu.failIfGLError(gl, 'gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE);');
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE,
imgs['../../../resources/gray-ramp-default-gamma.png']);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
wtu.clearAndDrawUnitQuad(gl);
var ref = new Uint8Array(width * height * 4);
gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, ref);
var gammaImages = [
'../../../resources/gray-ramp-gamma0.1.png',
'../../../resources/gray-ramp-gamma1.0.png',
'../../../resources/gray-ramp-gamma2.0.png',
'../../../resources/gray-ramp-gamma4.0.png',
'../../../resources/gray-ramp-gamma9.0.png'];
for (var ii = 0; ii < gammaImages.length; ++ii) {
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE,
imgs[gammaImages[ii]]);
wtu.clearAndDrawUnitQuad(gl);
gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf);
var same = true;
for (var jj = 0; jj < width * height * 4; ++jj) {
if (buf[jj] != ref[jj]) {
same = false;
break;
}
}
assertMsg(same, "pixels should be same regardless of gamma settings.");
}
debug("");
debug("check pixels are UN pre-multiplied");
for (var ii = 0; ii < 2; ++ii) {
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
if (ii == 0) {
var canvas2d = document.createElement("canvas");
canvas2d.width = 256;
canvas2d.height = 1;
var ctx = canvas2d.getContext("2d");
ctx.drawImage(imgs['../../../resources/gray-ramp-256-with-128-alpha.png'], 0, 0);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE, canvas2d);
} else {
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE,
imgs['../../../resources/gray-ramp-256-with-128-alpha.png']);
}
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
wtu.clearAndDrawUnitQuad(gl);
var buf = new Uint8Array(width * height * 4);
gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf);
var lt128Count = [0, 0, 0];
var ge128Count = [0, 0, 0];
for (var jj = 0; jj < width; ++jj) {
var off = jj * 4;
for (var cc = 0; cc < 3; ++cc) {
if (buf[off + cc] < 128) {
++lt128Count[cc];
} else {
++ge128Count[cc];
}
}
}
// Not sure the exact count here because gamma does effect drawing into the
// canvas but it should be close to 50% so I'll pass 45%
for (var jj = 0; jj < 3; ++jj) {
assertMsg(ge128Count[jj] > 256 * 0.45,
"Half the pixels in channel " + jj +
" should be >= 128,128,128. found " +
((ge128Count[jj] / 256) * 100).toFixed() + "%");
assertMsg(lt128Count[jj] > 256 * 0.45,
"Half the pixels in channel " + jj +
" should be < 128,128,128. found " +
((lt128Count[jj] / 256) * 100).toFixed() + "%");
}
}
debug("");
debug("check canvas pixels are UN pre-multiplied");
var canvas2d = document.createElement("canvas");
canvas2d.width = 1;
canvas2d.height = 1;
var ctx = canvas2d.getContext("2d");
ctx.fillStyle ="rgba(255,255,255,0.5)";
ctx.fillRect(0, 0, 256, 1);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas2d);
wtu.clearAndDrawUnitQuad(gl);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
checkPixelRange(0, 0, [255, 255, 255, 127], 4);
debug("");
debug("check canvas pixels are pre-multiplied");
gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, true);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas2d);
wtu.clearAndDrawUnitQuad(gl);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
checkPixelRange(0, 0, [127, 127, 127, 127], 4);
debug("");
debug("check pixels are pre-multiplied");
gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, true);
// TODO(gman): use different texture that won't pass on failure
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE,
imgs['../../../resources/zero-alpha.png']);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup");
wtu.clearAndDrawUnitQuad(gl);
gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf);
var same = true;
for (var jj = 0; jj < width * height * 4; ++jj) {
if (buf[jj] != 0) {
same = false;
break;
}
}
assertMsg(same, "pixels should all be 0.");
debug("");
debug("check pixels are flipped");
gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false);
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, true);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE,
imgs['../../../resources/3x3.png']);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup");
wtu.clearAndDrawUnitQuad(gl);
checkPixel(left, top, [255, 0, 0, 255]);
checkPixel(middle, top, [255, 255, 0, 255]);
checkPixel(right, top, [255, 0, 0, 255]);
checkPixel(left, center, [255, 0, 255, 255]);
checkPixel(middle, center, [255, 0, 0, 255]);
checkPixel(right, center, [ 0, 255, 0, 255]);
checkPixel(left, bottom, [ 0, 0, 0, 255]);
checkPixel(middle, bottom, [ 0, 0, 255, 255]);
checkPixel(right, bottom, [255, 0, 0, 255]);
debug("");
debug("check uploading of images with no alpha channel works");
gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false);
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, false);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE,
imgs['../../../resources/blue-1x1.jpg']);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup");
wtu.clearAndDrawUnitQuad(gl);
checkPixelRange(middle, center, [ 0, 0, 255, 255], 10);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors");
debug("");
debug("check uploading of 16-bit images");
gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false);
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, false);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE,
imgs['../../../resources/green-2x2-16bit.png']);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup");
wtu.clearAndDrawUnitQuad(gl);
checkPixelRange(middle, center, [ 15, 121, 0, 255], 10);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors");
debug("");
debug("check uploading of images with ICC profiles");
gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false);
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, false);
wtu.failIfGLError(gl, 'gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE);');
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE,
imgs['../../../resources/small-square-with-colorspin-profile.jpg']);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup");
wtu.clearAndDrawUnitQuad(gl);
// The image is red. However, if we ignore the color profile, it is blue.
checkPixelRange(middle, center, [ 0, 0, 255, 255], 10);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE,
imgs['../../../resources/small-square-with-colorspin-profile.png']);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup");
wtu.clearAndDrawUnitQuad(gl);
// The image is red. However, if we ignore the color profile, it is blue.
checkPixelRange(middle, center, [ 0, 0, 255, 255], 10);
var iccPNGs = [
'../../../resources/small-square-with-cie-rgb-profile.png',
'../../../resources/small-square-with-colormatch-profile.png',
'../../../resources/small-square-with-e-srgb-profile.png',
'../../../resources/small-square-with-smpte-c-profile.png',
'../../../resources/small-square-with-srgb-iec61966-2.1-profile.png'];
gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf);
for (var ii = 0; ii < iccPNGs.length; ++ii) {
var buf2 = new Uint8Array(width * height * 4);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE,
imgs[iccPNGs[ii]]);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup");
wtu.clearAndDrawUnitQuad(gl);
gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf2);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors");
var same = true;
for (var jj = 0; jj < buf.length; ++jj) {
if (buf[jj] != buf2[jj]) {
same = false;
break;
}
}
assertMsg(same, "uploading PNGs with same data but various ICC profiles should generate the same results");
}
debug("");
debug("check uploading of indexed PNG images");
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE,
imgs['../../../resources/red-indexed.png']);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup");
wtu.clearAndDrawUnitQuad(gl);
// The image should be red.
checkPixelRange(middle, center, [ 255, 0, 0, 255 ], 10);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup");
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE,
imgs['../../../resources/transparent-on-left-indexed.png']);
wtu.clearAndDrawUnitQuad(gl);
wtu.checkCanvasRect(gl, 0, 0, 128, 16, [255, 0, 255, 0], "should be transparent purple");
wtu.checkCanvasRect(gl, 128, 0,128, 16, [255, 255, 0, 255], "should be yellow");
debug("");
debug("check uploading of 1-channel JPG images");
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, gl.RGB, gl.UNSIGNED_BYTE,
imgs['../../../resources/1-channel.jpg']);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup");
wtu.clearAndDrawUnitQuad(gl);
// The image should be gray.
checkPixelRange(middle, center, [ 128, 128, 128, 255 ], 28);
debug("")
debug("check calling texImage2D with NULL clears the texture");
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB,
imgs['../../../resources/red-indexed.png'].width,
imgs['../../../resources/red-indexed.png'].height,
0, gl.RGB, gl.UNSIGNED_BYTE, null);
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup");
wtu.clearAndDrawUnitQuad(gl);
// The image should be white.
checkPixelRange(middle, center, [ 0, 0, 0, 255 ], 10);
debug("");
debug("check zero size cases");
gl.texImage2D(gl.TEXTURE_2D, 0, gl.LUMINANCE, 2, 0, 0, gl.LUMINANCE, gl.UNSIGNED_BYTE, new Uint8Array());
wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from zero sized textures");
debug("");
successfullyParsed = true;
shouldBeTrue("successfullyParsed");
debug('<br /><span class="pass">TEST COMPLETE</span>');
notifyFinishedToHarness();
}
</script>
</body>
</html>
|
