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// Copyright 2020 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
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "dawn/tests/DawnTest.h"
#include "dawn/common/Constants.h"
#include "dawn/common/Log.h"
#include "dawn/utils/WGPUHelpers.h"
#include "webgpu/webgpu_glfw.h"
#include "GLFW/glfw3.h"
class SwapChainTests : public DawnTest {
public:
void SetUp() override {
DawnTest::SetUp();
DAWN_TEST_UNSUPPORTED_IF(UsesWire());
glfwSetErrorCallback([](int code, const char* message) {
dawn::ErrorLog() << "GLFW error " << code << " " << message;
});
// GLFW can fail to start in headless environments, in which SwapChainTests are
// inapplicable. Skip this cases without producing a test failure.
if (glfwInit() == GLFW_FALSE) {
GTEST_SKIP();
}
// Set GLFW_NO_API to avoid GLFW bringing up a GL context that we won't use.
glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
window = glfwCreateWindow(400, 400, "SwapChainValidationTests window", nullptr, nullptr);
int width;
int height;
glfwGetFramebufferSize(window, &width, &height);
surface = wgpu::glfw::CreateSurfaceForWindow(GetInstance(), window);
ASSERT_NE(surface, nullptr);
baseDescriptor.width = width;
baseDescriptor.height = height;
baseDescriptor.usage = wgpu::TextureUsage::RenderAttachment;
baseDescriptor.format = wgpu::TextureFormat::BGRA8Unorm;
baseDescriptor.presentMode = wgpu::PresentMode::Mailbox;
}
void TearDown() override {
// Destroy the surface before the window as required by webgpu-native.
surface = wgpu::Surface();
if (window != nullptr) {
glfwDestroyWindow(window);
}
DawnTest::TearDown();
}
void ClearTexture(wgpu::TextureView view, wgpu::Color color) {
utils::ComboRenderPassDescriptor desc({view});
desc.cColorAttachments[0].loadOp = wgpu::LoadOp::Clear;
desc.cColorAttachments[0].clearValue = color;
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&desc);
pass.End();
wgpu::CommandBuffer commands = encoder.Finish();
queue.Submit(1, &commands);
}
protected:
GLFWwindow* window = nullptr;
wgpu::Surface surface;
wgpu::SwapChainDescriptor baseDescriptor;
};
// Basic test for creating a swapchain and presenting one frame.
TEST_P(SwapChainTests, Basic) {
wgpu::SwapChain swapchain = device.CreateSwapChain(surface, &baseDescriptor);
ClearTexture(swapchain.GetCurrentTextureView(), {1.0, 0.0, 0.0, 1.0});
swapchain.Present();
}
// Test replacing the swapchain
TEST_P(SwapChainTests, ReplaceBasic) {
wgpu::SwapChain swapchain1 = device.CreateSwapChain(surface, &baseDescriptor);
ClearTexture(swapchain1.GetCurrentTextureView(), {1.0, 0.0, 0.0, 1.0});
swapchain1.Present();
wgpu::SwapChain swapchain2 = device.CreateSwapChain(surface, &baseDescriptor);
ClearTexture(swapchain2.GetCurrentTextureView(), {0.0, 1.0, 0.0, 1.0});
swapchain2.Present();
}
// Test replacing the swapchain after GetCurrentTextureView
TEST_P(SwapChainTests, ReplaceAfterGet) {
wgpu::SwapChain swapchain1 = device.CreateSwapChain(surface, &baseDescriptor);
ClearTexture(swapchain1.GetCurrentTextureView(), {1.0, 0.0, 0.0, 1.0});
wgpu::SwapChain swapchain2 = device.CreateSwapChain(surface, &baseDescriptor);
ClearTexture(swapchain2.GetCurrentTextureView(), {0.0, 1.0, 0.0, 1.0});
swapchain2.Present();
}
// Test destroying the swapchain after GetCurrentTextureView
TEST_P(SwapChainTests, DestroyAfterGet) {
wgpu::SwapChain swapchain = device.CreateSwapChain(surface, &baseDescriptor);
ClearTexture(swapchain.GetCurrentTextureView(), {1.0, 0.0, 0.0, 1.0});
}
// Test destroying the surface before the swapchain
TEST_P(SwapChainTests, DestroySurface) {
wgpu::SwapChain swapchain = device.CreateSwapChain(surface, &baseDescriptor);
surface = nullptr;
}
// Test destroying the surface before the swapchain but after GetCurrentTextureView
TEST_P(SwapChainTests, DestroySurfaceAfterGet) {
wgpu::SwapChain swapchain = device.CreateSwapChain(surface, &baseDescriptor);
ClearTexture(swapchain.GetCurrentTextureView(), {1.0, 0.0, 0.0, 1.0});
surface = nullptr;
}
// Test switching between present modes.
TEST_P(SwapChainTests, SwitchPresentMode) {
// Fails with "internal drawable creation failed" on the Windows NVIDIA CQ builders but not
// locally.
DAWN_SUPPRESS_TEST_IF(IsWindows() && IsVulkan() && IsNvidia());
// TODO(jiawei.shao@intel.com): find out why this test sometimes hangs on the latest Linux Intel
// Vulkan drivers.
DAWN_SUPPRESS_TEST_IF(IsLinux() && IsVulkan() && IsIntel());
constexpr wgpu::PresentMode kAllPresentModes[] = {
wgpu::PresentMode::Immediate,
wgpu::PresentMode::Fifo,
wgpu::PresentMode::Mailbox,
};
for (wgpu::PresentMode mode1 : kAllPresentModes) {
for (wgpu::PresentMode mode2 : kAllPresentModes) {
wgpu::SwapChainDescriptor desc = baseDescriptor;
desc.presentMode = mode1;
wgpu::SwapChain swapchain1 = device.CreateSwapChain(surface, &desc);
ClearTexture(swapchain1.GetCurrentTextureView(), {0.0, 0.0, 0.0, 1.0});
swapchain1.Present();
desc.presentMode = mode2;
wgpu::SwapChain swapchain2 = device.CreateSwapChain(surface, &desc);
ClearTexture(swapchain2.GetCurrentTextureView(), {0.0, 0.0, 0.0, 1.0});
swapchain2.Present();
}
}
}
// Test resizing the swapchain and without resizing the window.
TEST_P(SwapChainTests, ResizingSwapChainOnly) {
for (int i = 0; i < 10; i++) {
wgpu::SwapChainDescriptor desc = baseDescriptor;
desc.width += i * 10;
desc.height -= i * 10;
wgpu::SwapChain swapchain = device.CreateSwapChain(surface, &desc);
ClearTexture(swapchain.GetCurrentTextureView(), {0.05f * i, 0.0f, 0.0f, 1.0f});
swapchain.Present();
}
}
// Test resizing the window but not the swapchain.
TEST_P(SwapChainTests, ResizingWindowOnly) {
wgpu::SwapChain swapchain = device.CreateSwapChain(surface, &baseDescriptor);
for (int i = 0; i < 10; i++) {
glfwSetWindowSize(window, 400 - 10 * i, 400 + 10 * i);
glfwPollEvents();
ClearTexture(swapchain.GetCurrentTextureView(), {0.05f * i, 0.0f, 0.0f, 1.0f});
swapchain.Present();
}
}
// Test resizing both the window and the swapchain at the same time.
TEST_P(SwapChainTests, ResizingWindowAndSwapChain) {
// TODO(crbug.com/dawn/1205) Currently failing on new NVIDIA GTX 1660s on Linux/Vulkan.
DAWN_SUPPRESS_TEST_IF(IsLinux() && IsVulkan() && IsNvidia());
for (int i = 0; i < 10; i++) {
glfwSetWindowSize(window, 400 - 10 * i, 400 + 10 * i);
glfwPollEvents();
int width;
int height;
glfwGetFramebufferSize(window, &width, &height);
wgpu::SwapChainDescriptor desc = baseDescriptor;
desc.width = width;
desc.height = height;
wgpu::SwapChain swapchain = device.CreateSwapChain(surface, &desc);
ClearTexture(swapchain.GetCurrentTextureView(), {0.05f * i, 0.0f, 0.0f, 1.0f});
swapchain.Present();
}
}
// Test switching devices on the same adapter.
TEST_P(SwapChainTests, SwitchingDevice) {
// The Vulkan Validation Layers incorrectly disallow gracefully passing a swapchain between two
// VkDevices using "vkSwapchainCreateInfoKHR::oldSwapchain".
// See https://github.com/KhronosGroup/Vulkan-ValidationLayers/issues/2256
DAWN_SUPPRESS_TEST_IF(IsVulkan() && IsBackendValidationEnabled());
wgpu::Device device2 = CreateDevice();
for (int i = 0; i < 3; i++) {
wgpu::Device deviceToUse;
if (i % 2 == 0) {
deviceToUse = device;
} else {
deviceToUse = device2;
}
wgpu::SwapChain swapchain = deviceToUse.CreateSwapChain(surface, &baseDescriptor);
swapchain.GetCurrentTextureView();
swapchain.Present();
}
}
DAWN_INSTANTIATE_TEST(SwapChainTests, MetalBackend(), VulkanBackend());