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// Copyright 2021 The SwiftShader Authors. All Rights Reserved.
//
// 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 "Window.hpp"
#if USE_HEADLESS_SURFACE
Window::Window(vk::Instance instance, vk::Extent2D windowSize)
: instance(instance)
{
vk::HeadlessSurfaceCreateInfoEXT surfaceCreateInfo;
surface = instance.createHeadlessSurfaceEXT(surfaceCreateInfo);
assert(surface);
}
Window::~Window()
{
instance.destroySurfaceKHR(surface, nullptr);
}
vk::SurfaceKHR Window::getSurface()
{
return surface;
}
void Window::show()
{
}
#elif defined(_WIN32)
Window::Window(vk::Instance instance, vk::Extent2D windowSize)
: instance(instance)
{
windowClass.cbSize = sizeof(WNDCLASSEX);
windowClass.style = CS_HREDRAW | CS_VREDRAW;
windowClass.lpfnWndProc = DefWindowProc;
windowClass.cbClsExtra = 0;
windowClass.cbWndExtra = 0;
windowClass.hInstance = moduleInstance;
windowClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
windowClass.hCursor = LoadCursor(NULL, IDC_ARROW);
windowClass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
windowClass.lpszMenuName = NULL;
windowClass.lpszClassName = "Window";
windowClass.hIconSm = LoadIcon(NULL, IDI_WINLOGO);
RegisterClassEx(&windowClass);
DWORD style = WS_OVERLAPPEDWINDOW | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
DWORD extendedStyle = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
RECT windowRect;
windowRect.left = 0L;
windowRect.top = 0L;
windowRect.right = (long)windowSize.width;
windowRect.bottom = (long)windowSize.height;
AdjustWindowRectEx(&windowRect, style, FALSE, extendedStyle);
uint32_t x = (GetSystemMetrics(SM_CXSCREEN) - windowRect.right) / 2;
uint32_t y = (GetSystemMetrics(SM_CYSCREEN) - windowRect.bottom) / 2;
window = CreateWindowEx(extendedStyle, "Window", "Hello",
style | WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
x, y,
windowRect.right - windowRect.left,
windowRect.bottom - windowRect.top,
NULL, NULL, moduleInstance, NULL);
SetForegroundWindow(window);
SetFocus(window);
// Create the Vulkan surface
vk::Win32SurfaceCreateInfoKHR surfaceCreateInfo;
surfaceCreateInfo.hinstance = moduleInstance;
surfaceCreateInfo.hwnd = window;
surface = instance.createWin32SurfaceKHR(surfaceCreateInfo);
assert(surface);
}
Window::~Window()
{
instance.destroySurfaceKHR(surface, nullptr);
DestroyWindow(window);
UnregisterClass("Window", moduleInstance);
}
vk::SurfaceKHR Window::getSurface()
{
return surface;
}
void Window::show()
{
ShowWindow(window, SW_SHOW);
}
#else
# error Window class unimplemented for this platform
#endif