<!DOCTYPE HTML>
<title>WebGL fuzzy bugs</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
<script src="driver-info.js"></script>
<script src="webgl-util.js"></script>
<body>
<script>
// Test the framebufferTexture2D() call with a unbound texture.
function framebufferTexture2D_bug1257593() {
var canvas = document.createElement('canvas');
var gl = null;
gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');
if (!gl) {
todo(false, 'WebGL framebufferTexture2D test, webgl is unavailable.');
return;
}
var texture = gl.createTexture(); // only createTexture(), but no bindBuffer()
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.STENCIL_ATTACHMENT, gl.TEXTURE_CUBE_MAP_NEGATIVE_Z, texture, 0);
ok(true, 'WebGL framebufferTexture2D with unbound texture');
}
// Test to call ClearBufferXXX() during context lost.
function webGL2ClearBufferXXX_bug1252414() {
var canvas = document.createElement('canvas');
var gl = canvas.getContext('webgl2');
if (!gl) {
todo(false, 'WebGL2 is not supported');
return;
}
var ext = gl.getExtension('WEBGL_lose_context');
if (!ext) {
todo(false, 'WebGL ClearBufferXXX test, ext WEBGL_lose_context is unavailable.');
return;
}
// Force to lose context.
ext.loseContext();
// Even thought the context is lost, all clearBuffer* function should still
// work without crash.
gl.clearBufferiv(gl.COLOR, 0, new Int32Array(10));
gl.clearBufferuiv(gl.COLOR, 0, new Uint32Array(10));
gl.clearBufferfv(gl.DEPTH, 0, new Float32Array(10));
gl.clearBufferfi(gl.DEPTH_STENCIL, 0, 0.0, 0);
ok(true, 'WebGL2 clearBufferXXX call during loseContext');
}
// Test gl function for multiple gl contexts switch.
function getFramebufferAttachmentParameter_bug1267100()
{
var canvas1 = document.createElement('canvas');
var canvas2 = document.createElement('canvas');
var gl1 = null;
gl1 = canvas1.getContext('webgl') || canvas1.getContext('experimental-webgl');
if (!gl1) {
todo(false, 'WebGL getFramebufferAttachmentParameter test, webgl is unavailable.');
return;
}
var gl2 = null;
gl2 = canvas2.getContext('webgl') || canvas2.getContext('experimental-webgl');
if (!gl2) {
todo(false, 'WebGL getFramebufferAttachmentParameter test, webgl is unavailable.');
return;
}
gl1.bindFramebuffer(gl1.FRAMEBUFFER, gl1.createFramebuffer());
gl2.scissor(0, 1, 2, 3);
// The gl call should still work even though we use another gl context before.
gl1.getFramebufferAttachmentParameter(gl1.FRAMEBUFFER,
gl1.COLOR_ATTACHMENT0,
gl1.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME);
ok(true, 'WebGL test getFramebufferAttachmentParameter');
}
// Test to call getFragDataLocation() when the fragment shader is detatched.
function getFragDataLocation_bug1259702() {
var canvas = document.createElement('canvas');
var gl = canvas.getContext('webgl2');
if (!gl) {
todo(false, 'WebGL2 is not supported');
return;
}
var program = gl.createProgram();
var vertexShaderSrc =
"void main(void) { \
gl_Position = vec4(1.0, 1.0, 1.0, 1.0); \
}";
var fragmentShaderSrc =
"void main(void) { \
gl_FragColor = vec4(1.0, 1.0, 1.0, 1.0); \
}";
var vertexShader = gl.createShader(gl.VERTEX_SHADER);
var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
gl.shaderSource(vertexShader, vertexShaderSrc);
gl.compileShader(vertexShader);
gl.attachShader(program, vertexShader);
gl.shaderSource(fragmentShader, fragmentShaderSrc);
gl.compileShader(fragmentShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
if (!gl.getProgramParameter(program, gl.LINK_STATUS)) {
var lastError = gl.getProgramInfoLog(program);
ok(false, 'WebGL getFragDataLocation() test, error in linking:' +
lastError);
return;
}
gl.useProgram(program);
gl.detachShader(program, fragmentShader);
// Test the getFragDataLocation() call after detatch the shader.
// This call should not hit crash.
gl.getFragDataLocation(program, "foobar");
ok(true, 'WebGL getFragDataLocation() call after detatch fragment shader');
}
function run() {
webGL2ClearBufferXXX_bug1252414();
framebufferTexture2D_bug1257593();
getFramebufferAttachmentParameter_bug1267100();
getFragDataLocation_bug1259702();
SimpleTest.finish();
}
SimpleTest.waitForExplicitFinish();
try {
var prefArrArr = [
['webgl.force-enabled', true],
['webgl.enable-webgl2', true],
];
var prefEnv = {'set': prefArrArr};
SpecialPowers.pushPrefEnv(prefEnv, run);
} catch (e) {
warning('No SpecialPowers, but trying WebGL2 anyway...');
run();
}
</script>