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Implement gl.getParameter(gl.VIEWPORT)

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This commit is contained in:
Anthony Ramine 2018-03-22 18:03:16 +01:00
parent cb6fa6e6b0
commit e34b19c42c
5 changed files with 120 additions and 27 deletions
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10
components/script/dom/webglrenderingcontext.rs
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@ -1305,6 +1305,14 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
return Int32Value(constants::UNSIGNED_BYTE as i32);
}
}
constants::VIEWPORT => {
let (sender, receiver) = webgl_channel().unwrap();
self.send_command(WebGLCommand::GetViewport(sender));
let (x, y, width, height) = receiver.recv().unwrap();
rooted!(in(cx) let mut rval = UndefinedValue());
[x, y, width, height].to_jsval(cx, rval.handle_mut());
return rval.get();
}
_ => {
if !self.extension_manager.is_get_parameter_name_enabled(parameter) {
self.webgl_error(WebGLError::InvalidEnum);
@ -3236,7 +3244,7 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
return self.webgl_error(InvalidValue)
}
self.send_command(WebGLCommand::Viewport(x, y, width, height))
self.send_command(WebGLCommand::SetViewport(x, y, width, height))
}
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.8