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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 <vector>
#include "dawn/common/Constants.h"
#include "dawn/common/Log.h"
#include "dawn/tests/DawnTest.h"
#include "dawn/utils/ComboRenderPipelineDescriptor.h"
#include "dawn/utils/WGPUHelpers.h"
#include "webgpu/webgpu_glfw.h"
#include "GLFW/glfw3.h"
namespace dawn {
namespace {
class SwapChainTests : public DawnTest {
public:
void SetUp() override {
DawnTest::SetUp();
DAWN_TEST_UNSUPPORTED_IF(UsesWire());
glfwSetErrorCallback([](int code, const char* message) {
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::Texture texture, wgpu::Color color) {
utils::ComboRenderPassDescriptor desc({texture.CreateView()});
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.GetCurrentTexture(), {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.GetCurrentTexture(), {1.0, 0.0, 0.0, 1.0});
swapchain1.Present();
wgpu::SwapChain swapchain2 = device.CreateSwapChain(surface, &baseDescriptor);
ClearTexture(swapchain2.GetCurrentTexture(), {0.0, 1.0, 0.0, 1.0});
swapchain2.Present();
}
// Test replacing the swapchain after GetCurrentTexture
TEST_P(SwapChainTests, ReplaceAfterGet) {
wgpu::SwapChain swapchain1 = device.CreateSwapChain(surface, &baseDescriptor);
ClearTexture(swapchain1.GetCurrentTexture(), {1.0, 0.0, 0.0, 1.0});
wgpu::SwapChain swapchain2 = device.CreateSwapChain(surface, &baseDescriptor);
ClearTexture(swapchain2.GetCurrentTexture(), {0.0, 1.0, 0.0, 1.0});
swapchain2.Present();
}
// Test destroying the swapchain after GetCurrentTexture
TEST_P(SwapChainTests, DestroyAfterGet) {
wgpu::SwapChain swapchain = device.CreateSwapChain(surface, &baseDescriptor);
ClearTexture(swapchain.GetCurrentTexture(), {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 GetCurrentTexture
TEST_P(SwapChainTests, DestroySurfaceAfterGet) {
wgpu::SwapChain swapchain = device.CreateSwapChain(surface, &baseDescriptor);
ClearTexture(swapchain.GetCurrentTexture(), {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.GetCurrentTexture(), {0.0, 0.0, 0.0, 1.0});
swapchain1.Present();
desc.presentMode = mode2;
wgpu::SwapChain swapchain2 = device.CreateSwapChain(surface, &desc);
ClearTexture(swapchain2.GetCurrentTexture(), {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.GetCurrentTexture(), {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.GetCurrentTexture(), {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.GetCurrentTexture(), {0.05f * i, 0.0f, 0.0f, 1.0f});
swapchain.Present();
}
}
// Test switching devices on the same adapter.
TEST_P(SwapChainTests, SwitchingDevice) {
// TODO(https://crbug.com/dawn/2116): Disabled due to new Validation Layer failures.
DAWN_SUPPRESS_TEST_IF(IsVulkan());
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.GetCurrentTexture();
swapchain.Present();
}
}
// Test that calling Device.GetSupportedSurfaceUsage() will throw an error because
// SurfaceCapabilities is not enabled.
TEST_P(SwapChainTests, ErrorGetSurfaceSupportedUsage) {
DAWN_TEST_UNSUPPORTED_IF(HasToggleEnabled("skip_validation"));
EXPECT_FALSE(device.HasFeature(wgpu::FeatureName::SurfaceCapabilities));
ASSERT_DEVICE_ERROR_MSG(
{
auto usageFlags = device.GetSupportedSurfaceUsage(surface);
EXPECT_EQ(usageFlags, wgpu::TextureUsage::None);
},
testing::HasSubstr("FeatureName::SurfaceCapabilities is not enabled"));
}
// Test that creating swapchain with TextureBinding usage without enabling SurfaceCapabilities
// feature should fail.
TEST_P(SwapChainTests, ErrorCreateWithTextureBindingUsage) {
DAWN_TEST_UNSUPPORTED_IF(HasToggleEnabled("skip_validation"));
EXPECT_FALSE(device.HasFeature(wgpu::FeatureName::SurfaceCapabilities));
auto desc = baseDescriptor;
desc.usage = wgpu::TextureUsage::TextureBinding | wgpu::TextureUsage::RenderAttachment;
ASSERT_DEVICE_ERROR_MSG(
{ auto swapchain = device.CreateSwapChain(surface, &desc); },
testing::HasSubstr("require enabling FeatureName::SurfaceCapabilities"));
}
class SwapChainWithAdditionalUsageTests : public SwapChainTests {
protected:
std::vector<wgpu::FeatureName> GetRequiredFeatures() override {
std::vector<wgpu::FeatureName> features;
if (!UsesWire() && SupportsFeatures({wgpu::FeatureName::SurfaceCapabilities})) {
features.push_back(wgpu::FeatureName::SurfaceCapabilities);
}
return features;
}
void SetUp() override {
SwapChainTests::SetUp();
// If parent class skipped the test, we should skip as well.
if (surface == nullptr) {
GTEST_SKIP();
}
DAWN_TEST_UNSUPPORTED_IF(!SupportsFeatures({wgpu::FeatureName::SurfaceCapabilities}));
}
void SampleTexture(wgpu::Texture texture, utils::RGBA8 expectedColor) {
wgpu::TextureDescriptor texDescriptor;
texDescriptor.size = {texture.GetWidth(), texture.GetHeight(), 1};
texDescriptor.format = wgpu::TextureFormat::RGBA8Unorm;
texDescriptor.usage = wgpu::TextureUsage::RenderAttachment | wgpu::TextureUsage::CopySrc |
wgpu::TextureUsage::CopyDst;
texDescriptor.mipLevelCount = 1;
texDescriptor.sampleCount = 1;
wgpu::Texture dstTexture = device.CreateTexture(&texDescriptor);
wgpu::TextureView dstView = dstTexture.CreateView();
// Create a render pipeline to blit |view| into |dstView|.
utils::ComboRenderPipelineDescriptor pipelineDesc;
pipelineDesc.vertex.module = utils::CreateShaderModule(device, R"(
@vertex
fn main(@builtin(vertex_index) VertexIndex : u32) -> @builtin(position) vec4f {
var pos = array(
vec2f(-1.0, -1.0),
vec2f(-1.0, 1.0),
vec2f( 1.0, -1.0),
vec2f(-1.0, 1.0),
vec2f( 1.0, -1.0),
vec2f( 1.0, 1.0));
return vec4f(pos[VertexIndex], 0.0, 1.0);
}
)");
pipelineDesc.cFragment.module = utils::CreateShaderModule(device, R"(
@group(0) @binding(0) var texture : texture_2d<f32>;
@fragment
fn main(@builtin(position) coord: vec4f) -> @location(0) vec4f {
return textureLoad(texture, vec2i(coord.xy), 0);
}
)");
pipelineDesc.cTargets[0].format = texDescriptor.format;
// Submit a render pass to perform the blit from |view| to |dstView|.
wgpu::CommandEncoder encoder = device.CreateCommandEncoder();
{
wgpu::RenderPipeline pipeline = device.CreateRenderPipeline(&pipelineDesc);
wgpu::BindGroup bindGroup = utils::MakeBindGroup(device, pipeline.GetBindGroupLayout(0),
{{0, texture.CreateView()}});
utils::ComboRenderPassDescriptor renderPassInfo({dstView});
wgpu::RenderPassEncoder pass = encoder.BeginRenderPass(&renderPassInfo);
pass.SetPipeline(pipeline);
pass.SetBindGroup(0, bindGroup);
pass.Draw(6);
pass.End();
}
wgpu::CommandBuffer commands = encoder.Finish();
queue.Submit(1, &commands);
EXPECT_TEXTURE_EQ(expectedColor, dstTexture, {0, 0});
EXPECT_TEXTURE_EQ(expectedColor, dstTexture,
{texture.GetWidth() - 1, texture.GetHeight() - 1});
}
void WriteTexture(wgpu::Texture texture, const utils::RGBA8& data) {
wgpu::Extent3D writeSize = {1, 1, 1};
wgpu::ImageCopyTexture dest = {};
dest.texture = texture;
wgpu::TextureDataLayout dataLayout = {};
queue.WriteTexture(&dest, &data, sizeof(utils::RGBA8), &dataLayout, &writeSize);
}
};
TEST_P(SwapChainWithAdditionalUsageTests, GetSurfaceSupportedUsage) {
auto usageFlags = device.GetSupportedSurfaceUsage(surface);
EXPECT_NE(usageFlags, wgpu::TextureUsage::None);
}
// Test that sampling from swapchain is supported.
TEST_P(SwapChainWithAdditionalUsageTests, SamplingFromSwapChain) {
// Skip all tests if readable surface doesn't support texture binding
DAWN_TEST_UNSUPPORTED_IF(
!(device.GetSupportedSurfaceUsage(surface) & wgpu::TextureUsage::TextureBinding));
auto desc = baseDescriptor;
desc.usage = wgpu::TextureUsage::TextureBinding | wgpu::TextureUsage::RenderAttachment;
wgpu::SwapChain swapchain = device.CreateSwapChain(surface, &desc);
ClearTexture(swapchain.GetCurrentTexture(), {1.0, 0.0, 0.0, 1.0});
SampleTexture(swapchain.GetCurrentTexture(), utils::RGBA8::kRed);
swapchain.Present();
}
// Test that including unsupported usage flag will result in error.
TEST_P(SwapChainWithAdditionalUsageTests, ErrorIncludeUnsupportedUsage) {
DAWN_TEST_UNSUPPORTED_IF(HasToggleEnabled("skip_validation"));
auto supportedUsage = device.GetSupportedSurfaceUsage(surface);
// Assuming StorageBinding is not supported.
DAWN_TEST_UNSUPPORTED_IF(supportedUsage & wgpu::TextureUsage::StorageBinding);
auto desc = baseDescriptor;
desc.usage = supportedUsage | wgpu::TextureUsage::StorageBinding;
ASSERT_DEVICE_ERROR_MSG({ auto swapchain = device.CreateSwapChain(surface, &desc); },
testing::HasSubstr("is not supported"));
}
// Test copying to a swapchain texture when it is supported.
TEST_P(SwapChainWithAdditionalUsageTests, CopyingToSwapChain) {
wgpu::TextureUsage supportedUsages = device.GetSupportedSurfaceUsage(surface);
// We need the swapchain to support copying to the texture and at least one readback method.
DAWN_TEST_UNSUPPORTED_IF(!(supportedUsages & wgpu::TextureUsage::CopyDst));
DAWN_TEST_UNSUPPORTED_IF(
!(supportedUsages & (wgpu::TextureUsage::CopySrc | wgpu::TextureUsage::TextureBinding)));
wgpu::SwapChainDescriptor desc = baseDescriptor;
desc.usage |= supportedUsages;
desc.width = 1;
desc.height = 1;
wgpu::SwapChain swapchain = device.CreateSwapChain(surface, &desc);
wgpu::Texture texture = swapchain.GetCurrentTexture();
WriteTexture(texture, utils::RGBA8::kRed);
if (supportedUsages & wgpu::TextureUsage::CopySrc) {
EXPECT_PIXEL_RGBA8_EQ(utils::RGBA8::kRed, swapchain.GetCurrentTexture(), 0, 0);
} else {
// kBlue because the texture is actually BGRA
SampleTexture(texture, utils::RGBA8::kBlue);
}
}
// Test copying from a swapchain texture when it is supported.
TEST_P(SwapChainWithAdditionalUsageTests, CopyingFromSwapChain) {
// We need the swapchain to support copying from the texture
DAWN_TEST_UNSUPPORTED_IF(
!(device.GetSupportedSurfaceUsage(surface) & wgpu::TextureUsage::CopySrc));
wgpu::SwapChainDescriptor desc = baseDescriptor;
desc.usage |= wgpu::TextureUsage::CopySrc;
wgpu::SwapChain swapchain = device.CreateSwapChain(surface, &desc);
wgpu::Texture texture = swapchain.GetCurrentTexture();
ClearTexture(swapchain.GetCurrentTexture(), {1.0, 0.0, 0.0, 1.0});
// kBlue because the texture is actually BGRA8
EXPECT_PIXEL_RGBA8_EQ(utils::RGBA8::kBlue, swapchain.GetCurrentTexture(), 0, 0);
}
DAWN_INSTANTIATE_TEST(SwapChainTests, MetalBackend(), VulkanBackend());
DAWN_INSTANTIATE_TEST(SwapChainWithAdditionalUsageTests,
D3D11Backend(),
D3D12Backend(),
MetalBackend(),
NullBackend(),
VulkanBackend());
} // anonymous namespace
} // namespace dawn