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webgl: Throw an error when binding a deleted framebuffer.

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The spec was recently changed to clarify that this should throw an
error.
This commit is contained in:
Eric Anholt 2016-10-09 14:14:26 -07:00
parent 6029c927ee
commit 5fda437e88
1 changed files with 12 additions and 2 deletions
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14
components/script/dom/webglrenderingcontext.rs
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@ -804,13 +804,23 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
return self.webgl_error(InvalidOperation);
}
self.bound_framebuffer.set(framebuffer);
if let Some(framebuffer) = framebuffer {
framebuffer.bind(target)
if framebuffer.is_deleted() {
// From the WebGL spec:
//
// "An attempt to bind a deleted framebuffer will
// generate an INVALID_OPERATION error, and the
// current binding will remain untouched."
return self.webgl_error(InvalidOperation);
} else {
framebuffer.bind(target);
self.bound_framebuffer.set(Some(framebuffer));
}
} else {
// Bind the default framebuffer
let cmd = WebGLCommand::BindFramebuffer(target, WebGLFramebufferBindingRequest::Default);
self.ipc_renderer.send(CanvasMsg::WebGL(cmd)).unwrap();
self.bound_framebuffer.set(framebuffer);
}
}