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Fix ArrayBuffer creation in buffer mapping

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This commit is contained in:
Kunal Mohan
2020-06-27 21:20:50 +05:30
parent b484836dbc
commit db2d313a1b
2 changed files with 10 additions and 10 deletions
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10
components/script/dom/gpudevice.rs
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@@ -54,9 +54,8 @@ use crate::script_runtime::JSContext as SafeJSContext;
use arrayvec::ArrayVec;
use dom_struct::dom_struct;
use js::jsapi::{Heap, JSObject};
use js::rust::MutableHandle;
use js::typedarray::{ArrayBuffer, CreateWith};
use std::ptr::NonNull;
use std::ptr::{self, NonNull};
use webgpu::wgpu::binding_model::BufferBinding;
use webgpu::{self, wgt, WebGPU, WebGPUBindings, WebGPURequest};
@@ -182,14 +181,17 @@ impl GPUDeviceMethods for GPUDevice {
let state;
let mapping_range;
if descriptor.mappedAtCreation {
let cx = self.global().get_cx();
rooted!(in(*cx) let mut array_buffer = ptr::null_mut::<JSObject>());
unsafe {
assert!(ArrayBuffer::create(
*self.global().get_cx(),
*cx,
CreateWith::Length(descriptor.size as u32),
MutableHandle::from_raw(mapping.handle_mut()),
array_buffer.handle_mut(),
)
.is_ok());
}
mapping.set(array_buffer.get());
state = GPUBufferState::MappedAtCreation;
mapping_range = 0..descriptor.size;
} else {