279 lines
10 KiB
C
279 lines
10 KiB
C
/* nuklear - 1.32.0 - public domain */
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#define COBJMACROS
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <d3d11.h>
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#include <stdio.h>
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#include <string.h>
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#include <limits.h>
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#include <time.h>
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#define WINDOW_WIDTH 800
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#define WINDOW_HEIGHT 600
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#define MAX_VERTEX_BUFFER 512 * 1024
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#define MAX_INDEX_BUFFER 128 * 1024
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#define NK_INCLUDE_FIXED_TYPES
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#define NK_INCLUDE_STANDARD_IO
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#define NK_INCLUDE_STANDARD_VARARGS
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#define NK_INCLUDE_DEFAULT_ALLOCATOR
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#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
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#define NK_INCLUDE_FONT_BAKING
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#define NK_INCLUDE_DEFAULT_FONT
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#define NK_IMPLEMENTATION
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#define NK_D3D11_IMPLEMENTATION
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#include "../../nuklear.h"
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#include "nuklear_d3d11.h"
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/* ===============================================================
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*
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* EXAMPLE
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*
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* ===============================================================*/
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/* This are some code examples to provide a small overview of what can be
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* done with this library. To try out an example uncomment the include
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* and the corresponding function. */
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#define UNUSED(a) (void)a
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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#define MAX(a,b) ((a) < (b) ? (b) : (a))
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#define LEN(a) (sizeof(a)/sizeof(a)[0])
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/*#include "../style.c"*/
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/*#include "../calculator.c"*/
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/*#include "../overview.c"*/
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/*#include "../node_editor.c"*/
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/* ===============================================================
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*
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* DEMO
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*
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* ===============================================================*/
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static IDXGISwapChain *swap_chain;
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static ID3D11Device *device;
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static ID3D11DeviceContext *context;
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static ID3D11RenderTargetView* rt_view;
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static void
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set_swap_chain_size(int width, int height)
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{
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ID3D11Texture2D *back_buffer;
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D3D11_RENDER_TARGET_VIEW_DESC desc;
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HRESULT hr;
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if (rt_view)
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ID3D11RenderTargetView_Release(rt_view);
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ID3D11DeviceContext_OMSetRenderTargets(context, 0, NULL, NULL);
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hr = IDXGISwapChain_ResizeBuffers(swap_chain, 0, width, height, DXGI_FORMAT_UNKNOWN, 0);
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if (hr == DXGI_ERROR_DEVICE_REMOVED || hr == DXGI_ERROR_DEVICE_RESET || hr == DXGI_ERROR_DRIVER_INTERNAL_ERROR)
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{
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/* to recover from this, you'll need to recreate device and all the resources */
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MessageBoxW(NULL, L"DXGI device is removed or reset!", L"Error", 0);
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exit(0);
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}
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assert(SUCCEEDED(hr));
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memset(&desc, 0, sizeof(desc));
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desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
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desc.ViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D;
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hr = IDXGISwapChain_GetBuffer(swap_chain, 0, &IID_ID3D11Texture2D, &back_buffer);
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assert(SUCCEEDED(hr));
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hr = ID3D11Device_CreateRenderTargetView(device, (ID3D11Resource *)back_buffer, &desc, &rt_view);
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assert(SUCCEEDED(hr));
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ID3D11Texture2D_Release(back_buffer);
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}
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static LRESULT CALLBACK
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WindowProc(HWND wnd, UINT msg, WPARAM wparam, LPARAM lparam)
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{
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switch (msg)
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{
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case WM_DESTROY:
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PostQuitMessage(0);
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return 0;
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case WM_SIZE:
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if (swap_chain)
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{
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int width = LOWORD(lparam);
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int height = HIWORD(lparam);
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set_swap_chain_size(width, height);
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nk_d3d11_resize(context, width, height);
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}
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break;
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}
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if (nk_d3d11_handle_event(wnd, msg, wparam, lparam))
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return 0;
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return DefWindowProcW(wnd, msg, wparam, lparam);
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}
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int main(void)
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{
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struct nk_context *ctx;
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struct nk_color background;
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WNDCLASSW wc;
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RECT rect = { 0, 0, WINDOW_WIDTH, WINDOW_HEIGHT };
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DWORD style = WS_OVERLAPPEDWINDOW;
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DWORD exstyle = WS_EX_APPWINDOW;
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HWND wnd;
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int running = 1;
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HRESULT hr;
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D3D_FEATURE_LEVEL feature_level;
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DXGI_SWAP_CHAIN_DESC swap_chain_desc;
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/* Win32 */
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memset(&wc, 0, sizeof(wc));
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wc.style = CS_DBLCLKS;
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wc.lpfnWndProc = WindowProc;
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wc.hInstance = GetModuleHandleW(0);
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wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
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wc.hCursor = LoadCursor(NULL, IDC_ARROW);
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wc.lpszClassName = L"NuklearWindowClass";
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RegisterClassW(&wc);
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AdjustWindowRectEx(&rect, style, FALSE, exstyle);
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wnd = CreateWindowExW(exstyle, wc.lpszClassName, L"Nuklear Demo",
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style | WS_VISIBLE, CW_USEDEFAULT, CW_USEDEFAULT,
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rect.right - rect.left, rect.bottom - rect.top,
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NULL, NULL, wc.hInstance, NULL);
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/* D3D11 setup */
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memset(&swap_chain_desc, 0, sizeof(swap_chain_desc));
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swap_chain_desc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
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swap_chain_desc.BufferDesc.RefreshRate.Numerator = 60;
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swap_chain_desc.BufferDesc.RefreshRate.Denominator = 1;
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swap_chain_desc.SampleDesc.Count = 1;
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swap_chain_desc.SampleDesc.Quality = 0;
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swap_chain_desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
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swap_chain_desc.BufferCount = 1;
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swap_chain_desc.OutputWindow = wnd;
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swap_chain_desc.Windowed = TRUE;
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swap_chain_desc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
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swap_chain_desc.Flags = 0;
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if (FAILED(D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_HARDWARE,
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NULL, 0, NULL, 0, D3D11_SDK_VERSION, &swap_chain_desc,
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&swap_chain, &device, &feature_level, &context)))
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{
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/* if hardware device fails, then try WARP high-performance
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software rasterizer, this is useful for RDP sessions */
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hr = D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_WARP,
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NULL, 0, NULL, 0, D3D11_SDK_VERSION, &swap_chain_desc,
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&swap_chain, &device, &feature_level, &context);
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assert(SUCCEEDED(hr));
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}
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set_swap_chain_size(WINDOW_WIDTH, WINDOW_HEIGHT);
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/* GUI */
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ctx = nk_d3d11_init(device, WINDOW_WIDTH, WINDOW_HEIGHT, MAX_VERTEX_BUFFER, MAX_INDEX_BUFFER);
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/* Load Fonts: if none of these are loaded a default font will be used */
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/* Load Cursor: if you uncomment cursor loading please hide the cursor */
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{struct nk_font_atlas *atlas;
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nk_d3d11_font_stash_begin(&atlas);
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/*struct nk_font *droid = nk_font_atlas_add_from_file(atlas, "../../extra_font/DroidSans.ttf", 14, 0);*/
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/*struct nk_font *robot = nk_font_atlas_add_from_file(atlas, "../../extra_font/Roboto-Regular.ttf", 14, 0);*/
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/*struct nk_font *future = nk_font_atlas_add_from_file(atlas, "../../extra_font/kenvector_future_thin.ttf", 13, 0);*/
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/*struct nk_font *clean = nk_font_atlas_add_from_file(atlas, "../../extra_font/ProggyClean.ttf", 12, 0);*/
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/*struct nk_font *tiny = nk_font_atlas_add_from_file(atlas, "../../extra_font/ProggyTiny.ttf", 10, 0);*/
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/*struct nk_font *cousine = nk_font_atlas_add_from_file(atlas, "../../extra_font/Cousine-Regular.ttf", 13, 0);*/
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nk_d3d11_font_stash_end();
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/*nk_style_load_all_cursors(ctx, atlas->cursors);*/
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/*nk_style_set_font(ctx, &droid->handle)*/;}
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/* style.c */
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/*set_style(ctx, THEME_WHITE);*/
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/*set_style(ctx, THEME_RED);*/
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/*set_style(ctx, THEME_BLUE);*/
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/*set_style(ctx, THEME_DARK);*/
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background = nk_rgb(28,48,62);
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while (running)
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{
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/* Input */
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MSG msg;
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nk_input_begin(ctx);
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while (PeekMessageW(&msg, NULL, 0, 0, PM_REMOVE))
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{
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if (msg.message == WM_QUIT)
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running = 0;
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TranslateMessage(&msg);
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DispatchMessageW(&msg);
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}
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nk_input_end(ctx);
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/* GUI */
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if (nk_begin(ctx, "Demo", nk_rect(50, 50, 230, 250),
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NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
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NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
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{
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enum {EASY, HARD};
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static int op = EASY;
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static int property = 20;
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nk_layout_row_static(ctx, 30, 80, 1);
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if (nk_button_label(ctx, "button"))
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fprintf(stdout, "button pressed\n");
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nk_layout_row_dynamic(ctx, 30, 2);
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if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
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if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
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nk_layout_row_dynamic(ctx, 22, 1);
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nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
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nk_layout_row_dynamic(ctx, 20, 1);
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nk_label(ctx, "background:", NK_TEXT_LEFT);
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nk_layout_row_dynamic(ctx, 25, 1);
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if (nk_combo_begin_color(ctx, background, nk_vec2(nk_widget_width(ctx),400))) {
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nk_layout_row_dynamic(ctx, 120, 1);
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background = nk_color_picker(ctx, background, NK_RGBA);
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nk_layout_row_dynamic(ctx, 25, 1);
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background.r = (nk_byte)nk_propertyi(ctx, "#R:", 0, background.r, 255, 1,1);
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background.g = (nk_byte)nk_propertyi(ctx, "#G:", 0, background.g, 255, 1,1);
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background.b = (nk_byte)nk_propertyi(ctx, "#B:", 0, background.b, 255, 1,1);
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background.a = (nk_byte)nk_propertyi(ctx, "#A:", 0, background.a, 255, 1,1);
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nk_combo_end(ctx);
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}
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}
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nk_end(ctx);
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/* -------------- EXAMPLES ---------------- */
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/*calculator(ctx);*/
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/*overview(ctx);*/
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/*node_editor(ctx);*/
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/* ----------------------------------------- */
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{/* Draw */
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float bg[4];
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nk_color_fv(bg, background);
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ID3D11DeviceContext_ClearRenderTargetView(context, rt_view, bg);
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ID3D11DeviceContext_OMSetRenderTargets(context, 1, &rt_view, NULL);
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nk_d3d11_render(context, NK_ANTI_ALIASING_ON);
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hr = IDXGISwapChain_Present(swap_chain, 1, 0);
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if (hr == DXGI_ERROR_DEVICE_RESET || hr == DXGI_ERROR_DEVICE_REMOVED) {
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/* to recover from this, you'll need to recreate device and all the resources */
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MessageBoxW(NULL, L"D3D11 device is lost or removed!", L"Error", 0);
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break;
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} else if (hr == DXGI_STATUS_OCCLUDED) {
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/* window is not visible, so vsync won't work. Let's sleep a bit to reduce CPU usage */
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Sleep(10);
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}
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assert(SUCCEEDED(hr));}
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}
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ID3D11DeviceContext_ClearState(context);
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nk_d3d11_shutdown();
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ID3D11ShaderResourceView_Release(rt_view);
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ID3D11DeviceContext_Release(context);
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ID3D11Device_Release(device);
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IDXGISwapChain_Release(swap_chain);
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UnregisterClassW(wc.lpszClassName, wc.hInstance);
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return 0;
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}
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