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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 "common/Log.h"
#include "common/Platform.h"
#include "dawn/dawn_proc.h"
#include "dawn_native/DawnNative.h"
#include "tests/DawnTest.h"
#include "utils/GLFWUtils.h"
#include <gtest/gtest.h>
#include <cstdlib>
// Include windows.h before GLFW so GLFW's APIENTRY macro doesn't conflict with windows.h's.
#if defined(DAWN_PLATFORM_WINDOWS)
# include "common/windows_with_undefs.h"
#endif // defined(DAWN_PLATFORM_WINDOWS)
#include "GLFW/glfw3.h"
#if defined(DAWN_USE_X11)
# include "common/xlib_with_undefs.h"
#endif // defined(DAWN_USE_X11)
#if defined(DAWN_ENABLE_BACKEND_METAL)
# include "utils/ObjCUtils.h"
#endif // defined(DAWN_ENABLE_BACKEND_METAL)
#include "GLFW/glfw3native.h"
// Test for wgpu::Surface creation that only need an instance (no devices) and don't need all the
// complexity of DawnTest.
class WindowSurfaceInstanceTests : public testing::Test {
public:
void SetUp() override {
glfwSetErrorCallback([](int code, const char* message) {
dawn::ErrorLog() << "GLFW error " << code << " " << message;
});
DAWN_TEST_UNSUPPORTED_IF(!glfwInit());
dawnProcSetProcs(&dawn::native::GetProcs());
mInstance = wgpu::CreateInstance();
}
void TearDown() override {
if (mWindow != nullptr) {
glfwDestroyWindow(mWindow);
mWindow = nullptr;
}
}
void AssertSurfaceCreation(const wgpu::SurfaceDescriptor* descriptor, bool succeeds) {
ASSERT_EQ(mInstance.CreateSurface(descriptor).Get() != nullptr, succeeds);
}
GLFWwindow* CreateWindow() {
// The WindowSurfaceInstance tests don't create devices so we don't need to call
// SetupGLFWWindowHintsForBackend. Set GLFW_NO_API anyway to avoid GLFW bringing up a GL
// context that we won't use.
glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
mWindow = glfwCreateWindow(400, 400, "WindowSurfaceInstanceTests window", nullptr, nullptr);
return mWindow;
}
private:
wgpu::Instance mInstance;
GLFWwindow* mWindow = nullptr;
};
// Test that a valid chained descriptor works (and that GLFWUtils creates a valid chained
// descriptor).
TEST_F(WindowSurfaceInstanceTests, ControlCase) {
GLFWwindow* window = CreateWindow();
std::unique_ptr<wgpu::ChainedStruct> chainedDescriptor =
utils::SetupWindowAndGetSurfaceDescriptorForTesting(window);
wgpu::SurfaceDescriptor descriptor;
descriptor.nextInChain = chainedDescriptor.get();
AssertSurfaceCreation(&descriptor, true);
}
// Test that just wgpu::SurfaceDescriptor isn't enough and needs a chained descriptor.
TEST_F(WindowSurfaceInstanceTests, NoChainedDescriptors) {
wgpu::SurfaceDescriptor descriptor;
descriptor.nextInChain = nullptr; // That's the default value but we set it for clarity.
AssertSurfaceCreation(&descriptor, false);
}
// Test that a chained descriptor with a garbage sType produces an error.
TEST_F(WindowSurfaceInstanceTests, BadChainedDescriptors) {
wgpu::ChainedStruct chainedDescriptor;
chainedDescriptor.sType = wgpu::SType::Invalid; // The default but we set it for clarity.
wgpu::SurfaceDescriptor descriptor;
descriptor.nextInChain = &chainedDescriptor;
AssertSurfaceCreation(&descriptor, false);
}
// Test that a chained descriptor with HTMLCanvas produces an error.
TEST_F(WindowSurfaceInstanceTests, HTMLCanvasDescriptor) {
wgpu::SurfaceDescriptorFromCanvasHTMLSelector chainedDescriptor;
chainedDescriptor.selector = "#myCanvas";
wgpu::SurfaceDescriptor descriptor;
descriptor.nextInChain = &chainedDescriptor;
AssertSurfaceCreation(&descriptor, false);
}
// Test that it is invalid to give two valid chained descriptors
TEST_F(WindowSurfaceInstanceTests, TwoChainedDescriptors) {
GLFWwindow* window = CreateWindow();
std::unique_ptr<wgpu::ChainedStruct> chainedDescriptor1 =
utils::SetupWindowAndGetSurfaceDescriptorForTesting(window);
std::unique_ptr<wgpu::ChainedStruct> chainedDescriptor2 =
utils::SetupWindowAndGetSurfaceDescriptorForTesting(window);
wgpu::SurfaceDescriptor descriptor;
descriptor.nextInChain = chainedDescriptor1.get();
chainedDescriptor1->nextInChain = chainedDescriptor2.get();
AssertSurfaceCreation(&descriptor, false);
}
#if defined(DAWN_PLATFORM_WINDOWS)
// Tests that GLFWUtils returns a descriptor of HWND type
TEST_F(WindowSurfaceInstanceTests, CorrectSTypeHWND) {
GLFWwindow* window = CreateWindow();
std::unique_ptr<wgpu::ChainedStruct> chainedDescriptor =
utils::SetupWindowAndGetSurfaceDescriptorForTesting(window);
ASSERT_EQ(chainedDescriptor->sType, wgpu::SType::SurfaceDescriptorFromWindowsHWND);
}
// Test with setting an invalid hwnd
TEST_F(WindowSurfaceInstanceTests, InvalidHWND) {
wgpu::SurfaceDescriptorFromWindowsHWND chainedDescriptor;
chainedDescriptor.hinstance = GetModuleHandle(nullptr);
chainedDescriptor.hwnd = 0; // This always is an invalid HWND value.
wgpu::SurfaceDescriptor descriptor;
descriptor.nextInChain = &chainedDescriptor;
AssertSurfaceCreation(&descriptor, false);
}
#else // defined(DAWN_PLATFORM_WINDOWS)
// Test using HWND when it is not supported
TEST_F(WindowSurfaceInstanceTests, HWNDSurfacesAreInvalid) {
wgpu::SurfaceDescriptorFromWindowsHWND chainedDescriptor;
chainedDescriptor.hinstance = nullptr;
chainedDescriptor.hwnd = 0;
wgpu::SurfaceDescriptor descriptor;
descriptor.nextInChain = &chainedDescriptor;
AssertSurfaceCreation(&descriptor, false);
}
#endif // defined(DAWN_PLATFORM_WINDOWS)
#if defined(DAWN_USE_X11)
// Tests that GLFWUtils returns a descriptor of Xlib type
TEST_F(WindowSurfaceInstanceTests, CorrectSTypeXlib) {
GLFWwindow* window = CreateWindow();
std::unique_ptr<wgpu::ChainedStruct> chainedDescriptor =
utils::SetupWindowAndGetSurfaceDescriptorForTesting(window);
ASSERT_EQ(chainedDescriptor->sType, wgpu::SType::SurfaceDescriptorFromXlibWindow);
}
// Test with setting an invalid window
TEST_F(WindowSurfaceInstanceTests, InvalidXWindow) {
wgpu::SurfaceDescriptorFromXlibWindow chainedDescriptor;
chainedDescriptor.display = XOpenDisplay(nullptr);
// From the "X Window System Protocol" "X Version 11, Release 6.8" page 2 at
// https://www.x.org/releases/X11R7.5/doc/x11proto/proto.pdf
// WINDOW 32-bit value (top three bits guaranteed to be zero.
// So UINT32_MAX should be an invalid window.
chainedDescriptor.window = 0xFFFFFFFF;
wgpu::SurfaceDescriptor descriptor;
descriptor.nextInChain = &chainedDescriptor;
AssertSurfaceCreation(&descriptor, false);
}
#else // defined(DAWN_USE_X11)
// Test using Xlib when it is not supported
TEST_F(WindowSurfaceInstanceTests, XlibSurfacesAreInvalid) {
wgpu::SurfaceDescriptorFromXlibWindow chainedDescriptor;
chainedDescriptor.display = nullptr;
chainedDescriptor.window = 0;
wgpu::SurfaceDescriptor descriptor;
descriptor.nextInChain = &chainedDescriptor;
AssertSurfaceCreation(&descriptor, false);
}
#endif // defined(DAWN_USE_X11)
#if defined(DAWN_ENABLE_BACKEND_METAL)
// Tests that GLFWUtils returns a descriptor of Metal type
TEST_F(WindowSurfaceInstanceTests, CorrectSTypeMetal) {
GLFWwindow* window = CreateWindow();
std::unique_ptr<wgpu::ChainedStruct> chainedDescriptor =
utils::SetupWindowAndGetSurfaceDescriptorForTesting(window);
ASSERT_EQ(chainedDescriptor->sType, wgpu::SType::SurfaceDescriptorFromMetalLayer);
}
// Test with setting an invalid layer
TEST_F(WindowSurfaceInstanceTests, InvalidMetalLayer) {
wgpu::SurfaceDescriptorFromMetalLayer chainedDescriptor;
// The CALayer is autoreleased. Releasing it causes a test failure when the Chromium GTest
// autoreleasepool is emptied.
chainedDescriptor.layer = utils::CreateDummyCALayer();
wgpu::SurfaceDescriptor descriptor;
descriptor.nextInChain = &chainedDescriptor;
AssertSurfaceCreation(&descriptor, false);
}
#else // defined(DAWN_ENABLE_BACKEND_METAL)
// Test using Metal when it is not supported
TEST_F(WindowSurfaceInstanceTests, MetalSurfacesAreInvalid) {
wgpu::SurfaceDescriptorFromMetalLayer chainedDescriptor;
chainedDescriptor.layer = nullptr;
wgpu::SurfaceDescriptor descriptor;
descriptor.nextInChain = &chainedDescriptor;
AssertSurfaceCreation(&descriptor, false);
}
#endif // defined(DAWN_ENABLE_BACKEND_METAL)