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// Copyright 2023 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.
#include <memory>
#include "dawn/native/metal/DeviceMTL.h"
#include "dawn/tests/white_box/GPUTimestampCalibrationTests.h"
namespace dawn {
namespace {
class GPUTimestampCalibrationTestsMetal : public GPUTimestampCalibrationTestBackend {
public:
explicit GPUTimestampCalibrationTestsMetal(const wgpu::Device& device) {
mBackendDevice = dawn::native::metal::ToBackend(dawn::native::FromAPI(device.Get()));
}
// The API used in timestamp calibration is only available on macOS 10.15+ and iOS 14.0+
bool IsSupported() const override {
if (@available(macOS 10.15, iOS 14.0, *)) {
return true;
}
return false;
}
void GetTimestampCalibration(uint64_t* gpuTimestamp, uint64_t* cpuTimestamp) override {
if (@available(macOS 10.15, iOS 14.0, *)) {
[mBackendDevice->GetMTLDevice() sampleTimestamps:cpuTimestamp
gpuTimestamp:gpuTimestamp];
}
}
float GetTimestampPeriod() const override { return mBackendDevice->GetTimestampPeriodInNS(); }
private:
dawn::native::metal::Device* mBackendDevice;
};
} // anonymous namespace
// static
std::unique_ptr<GPUTimestampCalibrationTestBackend> GPUTimestampCalibrationTestBackend::Create(
const wgpu::Device& device) {
return std::make_unique<GPUTimestampCalibrationTestsMetal>(device);
}
} // namespace dawn