зеркало из https://github.com/mozilla/gecko-dev.git
61 строка
1.7 KiB
HTML
61 строка
1.7 KiB
HTML
|
<!DOCTYPE HTML>
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<title>WebGL test: Check for error on ReadPixels from a depth-only FB.</title>
|
||
|
|
<script src="/tests/SimpleTest/SimpleTest.js"></script>
|
||
|
|
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
|
||
|
|
<script src="webgl-util.js"></script>
|
||
|
|
<script src="driver-info.js"></script>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<canvas id="c"></canvas>
|
||
|
|
<script>
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
(function() {
|
||
|
|
var gl = WebGLUtil.getWebGL('c');
|
||
|
|
if (!gl) {
|
||
|
|
todo(gl, 'Get GL working here first.');
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
var rb = gl.createRenderbuffer();
|
||
|
|
gl.bindRenderbuffer(gl.RENDERBUFFER, rb);
|
||
|
|
gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_COMPONENT16, 4, 4);
|
||
|
|
|
||
|
|
var fb = gl.createFramebuffer();
|
||
|
|
gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
|
||
|
|
gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT,
|
||
|
|
gl.RENDERBUFFER, rb);
|
||
|
|
|
||
|
|
if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) {
|
||
|
|
todo(false, 'Depth-only FB incomplete. This is valid.');
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
ok(!gl.getError(), 'Should have no errors after constructing FB.');
|
||
|
|
|
||
|
|
var pixels = new Uint8Array([1, 2, 3, 4]);
|
||
|
|
gl.readPixels(0, 0, // x,y
|
||
|
|
1, 1, // w,h
|
||
|
|
gl.RGBA, gl.UNSIGNED_BYTE, pixels);
|
||
|
|
|
||
|
|
ok(gl.getError() == gl.INVALID_OPERATION,
|
||
|
|
'1x1 color read from a depth FB should generated INVALID_OP.');
|
||
|
|
console.log('Data after 1x1 color-from-depth readpixels:');
|
||
|
|
console.log(pixels);
|
||
|
|
|
||
|
|
gl.readPixels(0, 0, // x,y
|
||
|
|
0, 0, // w,h
|
||
|
|
gl.RGBA, gl.UNSIGNED_BYTE, pixels);
|
||
|
|
|
||
|
|
ok(gl.getError() == gl.INVALID_OPERATION,
|
||
|
|
'0x0 color read from a depth FB should generated INVALID_OP.');
|
||
|
|
})();
|
||
|
|
|
||
|
|
ok(true, 'Test complete.');
|
||
|
|
|
||
|
|
</script>
|
||
|
|
</body>
|
||
|
|
</html>
|