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Return typed arrays from gl.getParameter (fixes #20655)

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This commit is contained in:
Anthony Ramine 2018-07-08 01:27:47 +02:00
parent 5aafb5007a
commit 0e6bec65bb
2 changed files with 32 additions and 88 deletions
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51
components/script/dom/webglrenderingcontext.rs
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@ -52,9 +52,10 @@ use euclid::Size2D;
use fnv::FnvHashMap;
use half::f16;
use js::jsapi::{JSContext, JSObject, Type};
use js::jsval::{BooleanValue, DoubleValue, Int32Value, UInt32Value, JSVal, NullValue, UndefinedValue};
use js::jsval::{BooleanValue, DoubleValue, Int32Value, UInt32Value, JSVal};
use js::jsval::{ObjectValue, NullValue, UndefinedValue};
use js::rust::CustomAutoRooterGuard;
use js::typedarray::ArrayBufferView;
use js::typedarray::{ArrayBufferView, CreateWith, Float32Array, Int32Array};
use net_traits::image::base::PixelFormat;
use net_traits::image_cache::ImageResponse;
use offscreen_gl_context::{GLContextAttributes, GLLimits};
@ -63,7 +64,7 @@ use script_layout_interface::HTMLCanvasDataSource;
use servo_config::prefs::PREFS;
use std::cell::{Cell, Ref};
use std::cmp;
use std::ptr::NonNull;
use std::ptr::{self, NonNull};
use webrender_api;
type ImagePixelResult = Result<(Vec<u8>, Size2D<i32>, bool), ()>;
@ -1425,10 +1426,13 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
Parameter::Int4(param) => {
let (sender, receiver) = webgl_channel().unwrap();
self.send_command(WebGLCommand::GetParameterInt4(param, sender));
// FIXME(nox): https://github.com/servo/servo/issues/20655
rooted!(in(cx) let mut rval = UndefinedValue());
receiver.recv().unwrap().to_jsval(cx, rval.handle_mut());
rval.get()
rooted!(in(cx) let mut rval = ptr::null_mut::<JSObject>());
let _ = Int32Array::create(
cx,
CreateWith::Slice(&receiver.recv().unwrap()),
rval.handle_mut(),
).unwrap();
ObjectValue(rval.get())
}
Parameter::Float(param) => {
let (sender, receiver) = webgl_channel().unwrap();
@ -1438,18 +1442,24 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
Parameter::Float2(param) => {
let (sender, receiver) = webgl_channel().unwrap();
self.send_command(WebGLCommand::GetParameterFloat2(param, sender));
// FIXME(nox): https://github.com/servo/servo/issues/20655
rooted!(in(cx) let mut rval = UndefinedValue());
receiver.recv().unwrap().to_jsval(cx, rval.handle_mut());
rval.get()
rooted!(in(cx) let mut rval = ptr::null_mut::<JSObject>());
let _ = Float32Array::create(
cx,
CreateWith::Slice(&receiver.recv().unwrap()),
rval.handle_mut(),
).unwrap();
ObjectValue(rval.get())
}
Parameter::Float4(param) => {
let (sender, receiver) = webgl_channel().unwrap();
self.send_command(WebGLCommand::GetParameterFloat4(param, sender));
// FIXME(nox): https://github.com/servo/servo/issues/20655
rooted!(in(cx) let mut rval = UndefinedValue());
receiver.recv().unwrap().to_jsval(cx, rval.handle_mut());
rval.get()
rooted!(in(cx) let mut rval = ptr::null_mut::<JSObject>());
let _ = Float32Array::create(
cx,
CreateWith::Slice(&receiver.recv().unwrap()),
rval.handle_mut(),
).unwrap();
ObjectValue(rval.get())
}
}
}
@ -2608,10 +2618,13 @@ impl WebGLRenderingContextMethods for WebGLRenderingContext {
self.send_command(WebGLCommand::GetCurrentVertexAttrib(index, sender));
receiver.recv().unwrap()
};
// FIXME(nox): https://github.com/servo/servo/issues/20655
rooted!(in(cx) let mut result = UndefinedValue());
value.to_jsval(cx, result.handle_mut());
return result.get();
rooted!(in(cx) let mut result = ptr::null_mut::<JSObject>());
let _ = Float32Array::create(
cx,
CreateWith::Slice(&value),
result.handle_mut(),
).unwrap();
return ObjectValue(result.get());
}
match param {