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Simplify GetTexParameter

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This commit is contained in:
Igor Gutorov 2018-03-20 21:00:46 +02:00
parent 730bd5ec80
commit 431e3ddf8d
3 changed files with 32 additions and 37 deletions
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50
components/script/dom/webglrenderingcontext.rs
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@ -1342,31 +1342,39 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
#[allow(unsafe_code)]
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.14.8
unsafe fn GetTexParameter(&self, _cx: *mut JSContext, target: u32, pname: u32) -> JSVal {
let texture = match target {
let target_matches = match target {
constants::TEXTURE_2D |
constants::TEXTURE_CUBE_MAP => self.bound_texture(target),
constants::TEXTURE_CUBE_MAP => true,
_ => false,
};
let pname_matches = match pname {
constants::TEXTURE_MAG_FILTER |
constants::TEXTURE_MIN_FILTER |
constants::TEXTURE_WRAP_S |
constants::TEXTURE_WRAP_T => true,
_ => false,
};
if !target_matches || !pname_matches {
self.webgl_error(InvalidEnum);
return NullValue();
}
if self.bound_texture(target).is_none() {
self.webgl_error(InvalidOperation);
return NullValue();
}
let (sender, receiver) = webgl_channel().unwrap();
self.send_command(WebGLCommand::GetTexParameter(target, pname, sender));
match receiver.recv().unwrap() {
value if value != 0 => Int32Value(value),
_ => {
self.webgl_error(InvalidEnum);
return NullValue();
NullValue()
}
};
if texture.is_some() {
let (sender, receiver) = webgl_channel().unwrap();
self.send_command(WebGLCommand::GetTexParameter(target, pname, sender));
match handle_potential_webgl_error!(self, receiver.recv().unwrap(), WebGLParameter::Invalid) {
WebGLParameter::Int(val) => Int32Value(val),
WebGLParameter::Bool(_) => panic!("Texture parameter should not be bool"),
WebGLParameter::Float(_) => panic!("Texture parameter should not be float"),
WebGLParameter::FloatArray(_) => panic!("Texture parameter should not be float array"),
WebGLParameter::String(_) => panic!("Texture parameter should not be string"),
WebGLParameter::Invalid => {
self.webgl_error(InvalidEnum);
NullValue()
}
}
} else {
self.webgl_error(InvalidOperation);
NullValue()
}
}