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// Copyright 2023 The Dawn Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
#include <gtest/gtest.h>
#include <string>
#include <utility>
#include <vector>
#include "dawn/tests/DawnTest.h"
namespace dawn {
class SharedTextureMemoryTestBackend {
// The name used in gtest parameterization. Names of backends must be unique.
virtual std::string Name() const = 0;
// The required features for testing this backend.
virtual std::vector<wgpu::FeatureName> RequiredFeatures() const = 0;
// Create one basic shared texture memory. It should support most operations.
virtual wgpu::SharedTextureMemory CreateSharedTextureMemory(wgpu::Device& device) = 0;
// Create a variety of valid SharedTextureMemory for testing, one on each device.
// Backends should return all interesting types of shared texture memory here, including
// different sizes, formats, memory types, etc.
// The inner vector is a vector of the same memory imported to each device.
virtual std::vector<std::vector<wgpu::SharedTextureMemory>>
CreatePerDeviceSharedTextureMemories(const std::vector<wgpu::Device>& devices) = 0;
// Import `fence` which may have been created on some other device, onto `importingDevice`.
virtual wgpu::SharedFence ImportFenceTo(const wgpu::Device& importingDevice,
const wgpu::SharedFence& fence) = 0;
// Shorthand version of `CreatePerDeviceSharedTextureMemories` that creates memories on a single
// device.
std::vector<wgpu::SharedTextureMemory> CreateSharedTextureMemories(wgpu::Device& device);
// Wrapper around CreatePerDeviceSharedTextureMemories that filters the memories by
// usage to ensure they have `requiredUsage`.
CreatePerDeviceSharedTextureMemoriesFilterByUsage(const std::vector<wgpu::Device>& devices,
wgpu::TextureUsage requiredUsage);
// Return true if the test should always use the same device.
// Some interop paths require the same underyling backend device.
virtual bool UseSameDevice() const { return false; }
// Whether or not the backing supports concurrent reads. This is
// a property of the underlying API (keyed mutex, vk binary semaphore),
// so it is concurrent reads across disjoint Dawn devices - not concurrent
// reads on the same Dawn device.
virtual bool SupportsConcurrentRead() const { return true; }
inline std::ostream& operator<<(std::ostream& o, SharedTextureMemoryTestBackend* backend) {
o << backend->Name();
return o;
using Backend = SharedTextureMemoryTestBackend*;
DAWN_TEST_PARAM_STRUCT(SharedTextureMemoryTestParams, Backend);
class SharedTextureMemoryNoFeatureTests : public DawnTestWithParams<SharedTextureMemoryTestParams> {
void SetUp() override;
class SharedTextureMemoryTests : public DawnTestWithParams<SharedTextureMemoryTestParams> {
std::vector<wgpu::FeatureName> GetRequiredFeatures() override;
void SetUp() override;
wgpu::Device CreateDevice();
void UseInRenderPass(wgpu::Device& deviceObj, wgpu::Texture& texture);
void UseInCopy(wgpu::Device& deviceObj, wgpu::Texture& texture);
wgpu::CommandBuffer MakeFourColorsClearCommandBuffer(wgpu::Device& deviceObj,
wgpu::Texture& texture);
std::pair<wgpu::CommandBuffer, wgpu::Texture> MakeCheckBySamplingCommandBuffer(
wgpu::Device& deviceObj,
wgpu::Texture& texture);
void CheckFourColors(wgpu::Device& deviceObj,
wgpu::TextureFormat format,
wgpu::Texture& colorTarget);
} // namespace dawn