d3d10winmain.cpp revision 92617aeac109481258f0c3863d09c1b8903d438b 
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 "d3d10app.h"
29#include "stdio.h"
30
31static d3d10_application* app;
32static IDXGISwapChain* swap_chain;
33static unsigned width, height;
34static DXGI_FORMAT format = DXGI_FORMAT_R8G8B8A8_UNORM;
35static ID3D10Device* dev;
36static ID3D10Device* ctx;
37static int frames = 0;
38static int buffer_count = 1;
39
40LRESULT 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
60int 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	= "d3d10";
77	wcex.hIconSm		= 0;
78
79	RegisterClassExA(&wcex);
80
81	HWND hwnd = CreateWindowA("d3d10", "d3d10", 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	D3D10_FEATURE_LEVEL1 feature_level = D3D10_FEATURE_LEVEL_10_0;
107
108	HRESULT hr;
109	if(1)
110	{
111		hr = D3D10CreateDeviceAndSwapChain(
112			NULL,
113			D3D10_DRIVER_TYPE_HARDWARE,
114			NULL,
115			D3D10_CREATE_DEVICE_SINGLETHREADED, // | D3D10_CREATE_DEVICE_DEBUG,
116			D3D10_SDK_VERSION,
117			&swap_chain_desc,
118			&swap_chain,
119			&dev);
120	}
121	else
122	{
123		hr = D3D10CreateDeviceAndSwapChain1(
124			NULL,
125			D3D10_DRIVER_TYPE_HARDWARE,
126			NULL,
127			D3D10_CREATE_DEVICE_SINGLETHREADED, // | D3D10_CREATE_DEVICE_DEBUG,
128			feature_level,
129			D3D10_SDK_VERSION,
130			&swap_chain_desc,
131			&swap_chain,
132			(ID3D10Device1**)&dev);
133	}
134
135	if(!SUCCEEDED(hr))
136	{
137		fprintf(stderr, "Failed to create D3D10 device (hresult %08x)\n", hr);
138		return 1;
139	}
140
141	ctx = dev;
142
143	app = d3d10_application_create();
144	if(!app->init(dev, argc, argv))
145		return 1;
146
147	ShowWindow(hwnd, SW_SHOWDEFAULT);
148	UpdateWindow(hwnd);
149
150	LARGE_INTEGER freq;
151	QueryPerformanceFrequency(&freq);
152	double period = 1.0 / (double)freq.QuadPart;
153	LARGE_INTEGER ctime_li;
154	QueryPerformanceCounter(&ctime_li);
155	double start_time = ctime_li.QuadPart * period;
156
157	MSG msg;
158	for(;;)
159	{
160		if(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
161		{
162			if(msg.message == WM_QUIT)
163				break;
164			TranslateMessage(&msg);
165			DispatchMessage(&msg);
166		}
167		else if(width && height)
168		{
169			ID3D10Texture2D* tex;
170			static ID3D10RenderTargetView* rtv;
171			ensure(swap_chain->GetBuffer(0, __uuidof(tex), (void**)&tex));
172			ensure(dev->CreateRenderTargetView(tex, NULL, &rtv));
173
174			QueryPerformanceCounter(&ctime_li);
175			double ctime = (double)ctime_li.QuadPart * period - start_time;
176
177			app->draw(ctx, rtv, width, height, ctime);
178			ctx->OMSetRenderTargets(0, 0, 0);
179
180			swap_chain->Present(0, 0);
181			rtv->Release();
182			tex->Release();
183		}
184		else
185			WaitMessage();
186	}
187	return (int) msg.wParam;
188}
189