1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/test/webgl-mochitest/test_texsubimage_float.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,62 @@
1.4 +<!DOCTYPE HTML>
1.5 +<title>WebGL test: bug 1003607</title>
1.6 +<script src="/tests/SimpleTest/SimpleTest.js"></script>
1.7 +<link rel="stylesheet" href="/tests/SimpleTest/test.css">
1.8 +<script src="driver-info.js"></script>
1.9 +<script src="webgl-util.js"></script>
1.10 +<body>
1.11 +<canvas id="c"></canvas>
1.12 +<script>
1.13 +
1.14 +// Give ourselves a scope to return early from:
1.15 +(function() {
1.16 + var gl = WebGLUtil.getWebGL('c');
1.17 + if (!gl) {
1.18 + todo(false, 'WebGL is unavailable.');
1.19 + return;
1.20 + }
1.21 +
1.22 + // Catch actual WebGLUtil errors, not GL errors.
1.23 + function errorFunc(str) {
1.24 + ok(false, 'Error: ' + str);
1.25 + }
1.26 + WebGLUtil.setErrorFunc(errorFunc);
1.27 +
1.28 + function checkGLError(func, info, reference) {
1.29 + var error = gl.getError();
1.30 + var prefix = info ? ('[' + info + '] ') : '';
1.31 + var text = 'gl.getError should be 0x' + reference.toString(16) +
1.32 + ', was 0x' + error.toString(16) + '.';
1.33 + func(error == reference, prefix + text);
1.34 + }
1.35 +
1.36 + // Begin test:
1.37 + if (!gl.getExtension('OES_texture_float')) {
1.38 + todo(false, 'Not having this extension is fine.');
1.39 + return;
1.40 + }
1.41 + var tex = gl.createTexture();
1.42 + gl.bindTexture(gl.TEXTURE_2D, tex);
1.43 + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
1.44 + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
1.45 + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
1.46 + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
1.47 + checkGLError(ok, 'texture parameter setup should succeed', gl.NO_ERROR);
1.48 +
1.49 + // Generate data
1.50 + var width = 2;
1.51 + var height = 2;
1.52 + var numChannels = 4;
1.53 + var data = new Float32Array(width * height * numChannels);
1.54 + for (var ii = 0; ii < data.length; ++ii) {
1.55 + data[ii] = 10000;
1.56 + }
1.57 + gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.FLOAT, data);
1.58 + checkGLError(ok, 'floating-point texture allocation should succeed', gl.NO_ERROR);
1.59 +
1.60 + // Try respecifying data
1.61 + gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height, gl.RGBA, gl.FLOAT, data);
1.62 + checkGLError(ok, 'floating-point texture sub image should succeed', gl.NO_ERROR);
1.63 +})();
1.64 +
1.65 +</script>
