1 files changed, 114 insertions, 0 deletions
diff --git a/client/src/ui/ui.cpp b/client/src/ui/ui.cpp
new file mode 100644
index 0000000..3e46a67
--- /dev/null
+++ b/client/src/ui/ui.cpp
@@ -0,0 +1,114 @@
+#include "../include.h"
+#include "ui.h"
+
+ID3D11Device* ui::device;
+ID3D11DeviceContext* ui::device_context;
+IDXGISwapChain* ui::swap_chain;
+ID3D11RenderTargetView* ui::main_render_target;
+
+extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
+
+LRESULT WINAPI ui::wnd_proc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam) {
+	if (ImGui_ImplWin32_WndProcHandler(hwnd, message, wparam, lparam))
+		return true;
+
+	switch (message)
+	{
+	case WM_SIZE:
+		if (wparam != SIZE_MINIMIZED) {
+			cleanup_target();
+			swap_chain->ResizeBuffers(0, (UINT)LOWORD(lparam), (UINT)HIWORD(wparam), DXGI_FORMAT_UNKNOWN, 0);
+			create_target();
+		}
+		return 0;
+	case WM_SYSCOMMAND:
+		if ((wparam & 0xfff0) == SC_KEYMENU) // Disable ALT application menu
+			return 0;
+		break;
+	case WM_DESTROY:
+		PostQuitMessage(0);
+		return 0;
+	}
+
+	return DefWindowProc(hwnd, message, wparam, lparam);
+}
+
+HWND ui::create(HINSTANCE instance, const std::pair<int, int> size, const std::pair<int, int> pos /*= { 400, 400 }*/) {
+	WNDCLASSEX wc;
+
+	std::memset(&wc, 0, sizeof(wc));
+	wc.cbSize = sizeof(WNDCLASSEX);
+	wc.style = CS_CLASSDC;
+	wc.lpfnWndProc = wnd_proc;
+	wc.hInstance = instance;
+	wc.hCursor = LoadCursor(NULL, IDC_ARROW);
+	wc.hbrBackground = 0;
+	wc.lpszClassName = "LoaderClass";
+
+	RegisterClassEx(&wc);
+
+	auto flag = WS_OVERLAPPEDWINDOW;
+	flag &= ~WS_MAXIMIZEBOX;
+	flag &= ~WS_SIZEBOX;
+	return CreateWindowEx(WS_EX_TOPMOST, wc.lpszClassName, "client", flag, pos.first, pos.second, size.first, size.second, 0, 0, wc.hInstance, 0);
+}
+
+bool ui::create_device(HWND hwnd) {
+	DXGI_SWAP_CHAIN_DESC sd;
+	ZeroMemory(&sd, sizeof(sd));
+	sd.BufferCount = 2;
+	sd.BufferDesc.Width = 0;
+	sd.BufferDesc.Height = 0;
+	sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+	sd.BufferDesc.RefreshRate.Numerator = 60;
+	sd.BufferDesc.RefreshRate.Denominator = 1;
+	sd.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
+	sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
+	sd.OutputWindow = hwnd;
+	sd.SampleDesc.Count = 1;
+	sd.SampleDesc.Quality = 0;
+	sd.Windowed = TRUE;
+	sd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
+
+	UINT createDeviceFlags = 0;
+	//createDeviceFlags |= D3D11_CREATE_DEVICE_DEBUG;
+	D3D_FEATURE_LEVEL featureLevel;
+	const D3D_FEATURE_LEVEL featureLevelArray[2] = { D3D_FEATURE_LEVEL_11_0, D3D_FEATURE_LEVEL_10_0, };
+	auto ret = D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_HARDWARE, NULL, createDeviceFlags, featureLevelArray, 2,
+		D3D11_SDK_VERSION, &sd, &swap_chain, &device, &featureLevel, &device_context);
+	if (ret != S_OK)
+		return false;
+
+	create_target();
+
+	return true;
+}
+
+void ui::create_target() {
+	ID3D11Texture2D* pBackBuffer;
+	swap_chain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
+	device->CreateRenderTargetView(pBackBuffer, NULL, &main_render_target);
+	pBackBuffer->Release();
+}
+
+void ui::cleanup_target() {
+	if (main_render_target) {
+		main_render_target->Release();
+		main_render_target = nullptr;
+	}
+}
+
+void ui::cleanup_device() {
+	cleanup_target();
+	if (swap_chain) {
+		swap_chain->Release();
+	}
+
+	if (device_context) {
+		device_context->Release();
+	}
+
+	if (device) {
+		device->Release();
+	}
+}
+\ No newline at end of file