blob: d8aa5bcef23d86c70a97b01b290315a15eb96027 [file] [log] [blame]
<!DOCTYPE html>
<html>
<head>
<title>Texture upload with color profile</title>
<script src="../../../resources/js-test.js"></script>
<script src="resources/webgl-test.js"></script>
<script src="resources/webgl-test-utils.js"></script>
</head>
<body>
<canvas id="example" width="16" height="16" style="width: 16px; height: 16px;"></canvas>
<div id="description"></div>
<div id="console"></div>
<script>
description("Test that applying a color profile to a texture with separate alpha doesn't destroy the texture.");
debug("")
debug("This test isn't appropriate to include in the WebGL conformance suite, since the browser's behavior when applying a color profile can't be guaranteed.")
var wtu = WebGLTestUtils;
var canvas = document.getElementById("example");
var gl = wtu.create3DContext(canvas);
var program = wtu.setupTexturedQuad(gl);
glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
var imgURLs = [
'resources/tan-1x1-with-alpha.png'
];
wtu.loadImagesAsync(imgURLs, runTests);
function runTests(imgs) {
// pixelStorei defaults are UNPACK_PREMULTIPLY_ALPHA_WEBGL=false, UNPACK_COLORSPACE_CONVERSION_WEBGL=BROWSER_DEFAULT_WEBGL.
var loc = gl.getUniformLocation(program, "tex");
gl.uniform1i(loc, 0);
gl.disable(gl.BLEND);
gl.disable(gl.DEPTH_TEST);
var width = canvas.width;
var height = canvas.height;
function checkPixelRange(buf, x, y, color, allowedRange) {
var off = (y * width + x) * 4;
var msg = "pixel " + x + ", " + y + " should be within " +
allowedRange + " units of " +
color[0] + ", " +
color[1] + ", " +
color[2] + ", " +
color[3];
var subMsg = " was " +
buf[off + 0] + ", " +
buf[off + 1] + ", " +
buf[off + 2] + ", " +
buf[off + 3];
// When running in WebKit's test harness, we don't want to print the
// pixel value when the test passes, because different machines might
// have different results and we record the text output.
var inDumpRenderTree = window.testRunner;
for (var ii = 0; ii < 4; ++ii) {
if (Math.abs(buf[off + ii] - color[ii]) > allowedRange) {
testFailed(msg + subMsg);
return;
}
}
testPassed(msg + (inDumpRenderTree ? "" : subMsg));
}
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);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE,
imgs['resources/tan-1x1-with-alpha.png']);
glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup");
wtu.drawQuad(gl);
gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buf);
// This generous range is still enough to catch the regression.
checkPixelRange(buf, 0, 0, [163, 126, 94, 129], 20);
debug("");
}
</script>
</body>
</html>