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// Copyright 2021 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef SRC_DAWN_UTILS_WIREHELPER_H_
#define SRC_DAWN_UTILS_WIREHELPER_H_
#include <cstdint>
#include <memory>
#include <utility>
#include "dawn/webgpu_cpp.h"
struct DawnProcTable;
namespace dawn::native {
class Instance;
} // namespace dawn::native
namespace dawn::utils {
class WireHelper {
public:
virtual ~WireHelper();
// Registers the instance on the wire, if present.
// Returns the wgpu::Instance which is the client instance on the wire (created with wireDesc),
// and the backend instance without the wire.
// The function should not take ownership of |backendInstance|.
virtual wgpu::Instance RegisterInstance(WGPUInstance backendInstance,
const WGPUInstanceDescriptor* wireDesc = nullptr) = 0;
// Helper to created a native instance and automatically register it with the wire if needed.
// Return the native instance and the same result as RegisterInstance.
virtual std::pair<wgpu::Instance, std::unique_ptr<dawn::native::Instance>> CreateInstances(
const wgpu::InstanceDescriptor* nativeDesc = nullptr,
const wgpu::InstanceDescriptor* wireDesc = nullptr);
virtual void BeginWireTrace(const char* name) = 0;
virtual bool FlushClient() = 0;
virtual bool FlushServer() = 0;
};
std::unique_ptr<WireHelper> CreateWireHelper(const DawnProcTable& procs,
bool useWire,
const char* wireTraceDir = nullptr);
} // namespace dawn::utils
#endif // SRC_DAWN_UTILS_WIREHELPER_H_