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Diffstat (limited to 'dom/webgpu/ipc/WebGPUTypes.h')
-rw-r--r-- | dom/webgpu/ipc/WebGPUTypes.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/dom/webgpu/ipc/WebGPUTypes.h b/dom/webgpu/ipc/WebGPUTypes.h new file mode 100644 index 0000000000..e607e03b99 --- /dev/null +++ b/dom/webgpu/ipc/WebGPUTypes.h @@ -0,0 +1,69 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef WEBGPU_TYPES_H_ +#define WEBGPU_TYPES_H_ + +#include <cstdint> +#include "mozilla/Maybe.h" +#include "nsString.h" +#include "mozilla/dom/BindingDeclarations.h" + +namespace mozilla::webgpu { + +using RawId = uint64_t; +using BufferAddress = uint64_t; + +struct ScopedError { + // Did an error occur as a result the attempt to retrieve an error + // (e.g. from a dead device, from an empty scope stack)? + bool operationError = false; + + // If non-empty, the first error generated when this scope was on + // the top of the stack. This is interpreted as UTF-8. + nsCString validationMessage; +}; +using MaybeScopedError = Maybe<ScopedError>; + +enum class WebGPUCompilationMessageType { Error, Warning, Info }; + +// TODO: Better name? CompilationMessage alread taken by the dom object. +/// The serializable counterpart of the dom object CompilationMessage. +struct WebGPUCompilationMessage { + nsString message; + uint64_t lineNum = 0; + uint64_t linePos = 0; + // In utf16 code units. + uint64_t offset = 0; + // In utf16 code units. + uint64_t length = 0; + WebGPUCompilationMessageType messageType = + WebGPUCompilationMessageType::Error; +}; + +/// A helper to reduce the boiler plate of turning the many Optional<nsAString> +/// we get from the dom to the nullable nsACString* we pass to the wgpu ffi. +class StringHelper { + public: + explicit StringHelper(const dom::Optional<nsString>& aWide) { + if (aWide.WasPassed()) { + mNarrow = Some(NS_ConvertUTF16toUTF8(aWide.Value())); + } + } + + const nsACString* Get() const { + if (mNarrow.isSome()) { + return mNarrow.ptr(); + } + return nullptr; + } + + private: + Maybe<NS_ConvertUTF16toUTF8> mNarrow; +}; + +} // namespace mozilla::webgpu + +#endif // WEBGPU_TYPES_H_ |