Home | History | Annotate | Download | only in d3d11app 
      1 /**************************************************************************
      2  *
      3  * Copyright 2010 Luca Barbieri
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining
      6  * a copy of this software and associated documentation files (the
      7  * "Software"), to deal in the Software without restriction, including
      8  * without limitation the rights to use, copy, modify, merge, publish,
      9  * distribute, sublicense, and/or sell copies of the Software, and to
     10  * permit persons to whom the Software is furnished to do so, subject to
     11  * the following conditions:
     12  *
     13  * The above copyright notice and this permission notice (including the
     14  * next paragraph) shall be included in all copies or substantial
     15  * portions of the Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
     20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
     21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     24  *
     25  **************************************************************************/
     26 
     27 #define INITGUID
     28 #include "d3d11app.h"
     29 #include "stdio.h"
     30 
     31 static d3d11_application* app;
     32 static IDXGISwapChain* swap_chain;
     33 static unsigned width, height;
     34 static DXGI_FORMAT format = DXGI_FORMAT_R8G8B8A8_UNORM;
     35 static ID3D11Device* dev;
     36 static ID3D11DeviceContext* ctx;
     37 static int frames = 0;
     38 static int buffer_count = 1;
     39 
     40 LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
     41 {
     42 	switch (message)
     43 	{
     44 	case WM_SIZE:
     45 		width = lParam & 0xffff;
     46 		height = lParam >> 16;
     47 
     48 		swap_chain->ResizeBuffers(buffer_count, width, height, format, 0);
     49 		frames = 0;
     50 		break;
     51 	case WM_DESTROY:
     52 		PostQuitMessage(0);
     53 		break;
     54 	default:
     55 		return DefWindowProc(hwnd, message, wParam, lParam);
     56 	}
     57 	return 0;
     58 }
     59 
     60 int main(int argc, char** argv)
     61 {
     62 	HINSTANCE hInstance = GetModuleHandle(NULL);
     63 	WNDCLASSEXA wcex;
     64 
     65 	wcex.cbSize = sizeof(WNDCLASSEX);
     66 
     67 	wcex.style		= CS_HREDRAW | CS_VREDRAW;
     68 	wcex.lpfnWndProc	= WndProc;
     69 	wcex.cbClsExtra		= 0;
     70 	wcex.cbWndExtra		= 0;
     71 	wcex.hInstance		= hInstance;
     72 	wcex.hIcon		= 0;
     73 	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW);
     74 	wcex.hbrBackground	= (HBRUSH)(COLOR_WINDOW+1);
     75 	wcex.lpszMenuName	= 0;
     76 	wcex.lpszClassName	= "d3d11";
     77 	wcex.hIconSm		= 0;
     78 
     79 	RegisterClassExA(&wcex);
     80 
     81 	HWND hwnd = CreateWindowA("d3d11", "d3d11", WS_OVERLAPPEDWINDOW,
     82 		CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
     83 
     84 	if(!hwnd)
     85 		return FALSE;
     86 
     87 	RECT rc;
     88 	GetClientRect(hwnd, &rc );
     89 	width = rc.right - rc.left;
     90 	height = rc.bottom - rc.top;
     91 
     92 	DXGI_SWAP_CHAIN_DESC swap_chain_desc;
     93 	memset(&swap_chain_desc, 0, sizeof(swap_chain_desc));
     94 	swap_chain_desc.BufferDesc.Width = width;
     95 	swap_chain_desc.BufferDesc.Height = height;
     96 	swap_chain_desc.BufferDesc.Format = format;
     97 	swap_chain_desc.SampleDesc.Count = 1;
     98 	swap_chain_desc.SampleDesc.Quality = 0;
     99 	swap_chain_desc.OutputWindow = hwnd;
    100 	swap_chain_desc.Windowed = TRUE;
    101 	swap_chain_desc.BufferCount = buffer_count;
    102 	swap_chain_desc.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
    103 	swap_chain_desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
    104 	swap_chain_desc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
    105 
    106 	D3D_FEATURE_LEVEL feature_level = D3D_FEATURE_LEVEL_10_0;
    107 
    108 	HRESULT hr = D3D11CreateDeviceAndSwapChain(
    109 		NULL,
    110 		D3D_DRIVER_TYPE_HARDWARE,
    111 		NULL,
    112 		D3D11_CREATE_DEVICE_SINGLETHREADED, // | D3D11_CREATE_DEVICE_DEBUG,
    113 		NULL,
    114 		0,
    115 		D3D11_SDK_VERSION,
    116 		&swap_chain_desc,
    117 		&swap_chain,
    118 		&dev,
    119 		&feature_level,
    120 		&ctx);
    121 	if(!SUCCEEDED(hr))
    122 	{
    123 		fprintf(stderr, "Failed to create D3D11 device (hresult %08x)\n", hr);
    124 		return 1;
    125 	}
    126 
    127 	app = d3d11_application_create();
    128 	if(!app->init(dev, argc, argv))
    129 		return 1;
    130 
    131 	ShowWindow(hwnd, SW_SHOWDEFAULT);
    132 	UpdateWindow(hwnd);
    133 
    134 	LARGE_INTEGER freq;
    135 	QueryPerformanceFrequency(&freq);
    136 	double period = 1.0 / (double)freq.QuadPart;
    137 	LARGE_INTEGER ctime_li;
    138 	QueryPerformanceCounter(&ctime_li);
    139 	double start_time = ctime_li.QuadPart * period;
    140 
    141 	MSG msg;
    142 	for(;;)
    143 	{
    144 		if(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
    145 		{
    146 			if(msg.message == WM_QUIT)
    147 				break;
    148 			TranslateMessage(&msg);
    149 			DispatchMessage(&msg);
    150 		}
    151 		else if(width && height)
    152 		{
    153 			ID3D11Texture2D* tex;
    154 			static ID3D11RenderTargetView* rtv;
    155 			ensure(swap_chain->GetBuffer(0, __uuidof(tex), (void**)&tex));
    156 			ensure(dev->CreateRenderTargetView(tex, NULL, &rtv));
    157 
    158 			QueryPerformanceCounter(&ctime_li);
    159 			double ctime = (double)ctime_li.QuadPart * period - start_time;
    160 
    161 			app->draw(ctx, rtv, width, height, ctime);
    162 			ctx->OMSetRenderTargets(0, 0, 0);
    163 
    164 			swap_chain->Present(0, 0);
    165 			rtv->Release();
    166 			tex->Release();
    167 		}
    168 		else
    169 			WaitMessage();
    170 	}
    171 	return (int) msg.wParam;
    172 }
    173