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63 lines
2.0 KiB
HTML
63 lines
2.0 KiB
HTML
<!DOCTYPE HTML>
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<title>WebGL test: bug 1003607</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" href="/tests/SimpleTest/test.css">
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<script src="driver-info.js"></script>
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<script src="webgl-util.js"></script>
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<body>
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<canvas id="c"></canvas>
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<script>
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// Give ourselves a scope to return early from:
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(function() {
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var gl = WebGLUtil.getWebGL('c');
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if (!gl) {
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todo(false, 'WebGL is unavailable.');
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return;
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}
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// Catch actual WebGLUtil errors, not GL errors.
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function errorFunc(str) {
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ok(false, 'Error: ' + str);
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}
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WebGLUtil.setErrorFunc(errorFunc);
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function checkGLError(func, info, reference) {
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var error = gl.getError();
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var prefix = info ? ('[' + info + '] ') : '';
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var text = 'gl.getError should be 0x' + reference.toString(16) +
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', was 0x' + error.toString(16) + '.';
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func(error == reference, prefix + text);
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}
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// Begin test:
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if (!gl.getExtension('OES_texture_float')) {
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todo(false, 'Not having this extension is fine.');
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return;
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}
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var tex = gl.createTexture();
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gl.bindTexture(gl.TEXTURE_2D, tex);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
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checkGLError(ok, 'texture parameter setup should succeed', gl.NO_ERROR);
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// Generate data
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var width = 2;
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var height = 2;
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var numChannels = 4;
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var data = new Float32Array(width * height * numChannels);
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for (var ii = 0; ii < data.length; ++ii) {
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data[ii] = 10000;
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}
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gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.FLOAT, data);
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checkGLError(ok, 'floating-point texture allocation should succeed', gl.NO_ERROR);
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// Try respecifying data
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gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height, gl.RGBA, gl.FLOAT, data);
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checkGLError(ok, 'floating-point texture sub image should succeed', gl.NO_ERROR);
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})();
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</script>
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