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/**************************************************************************
*
* Copyright 2010 Luca Barbieri
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#define INITGUID
#include "d3d11app.h"
#include "stdio.h"
static d3d11_application* app;
static IDXGISwapChain* swap_chain;
static unsigned width, height;
static DXGI_FORMAT format = DXGI_FORMAT_R8G8B8A8_UNORM;
static ID3D11Device* dev;
static ID3D11DeviceContext* ctx;
static int frames = 0;
static int buffer_count = 1;
LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_SIZE:
width = lParam & 0xffff;
height = lParam >> 16;
swap_chain->ResizeBuffers(buffer_count, width, height, format, 0);
frames = 0;
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}
int main(int argc, char** argv)
{
HINSTANCE hInstance = GetModuleHandle(NULL);
WNDCLASSEXA wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = 0;
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = 0;
wcex.lpszClassName = "d3d11";
wcex.hIconSm = 0;
RegisterClassExA(&wcex);
HWND hwnd = CreateWindowA("d3d11", "d3d11", WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
if(!hwnd)
return FALSE;
RECT rc;
GetClientRect(hwnd, &rc );
width = rc.right - rc.left;
height = rc.bottom - rc.top;
DXGI_SWAP_CHAIN_DESC swap_chain_desc;
memset(&swap_chain_desc, 0, sizeof(swap_chain_desc));
swap_chain_desc.BufferDesc.Width = width;
swap_chain_desc.BufferDesc.Height = height;
swap_chain_desc.BufferDesc.Format = format;
swap_chain_desc.SampleDesc.Count = 1;
swap_chain_desc.SampleDesc.Quality = 0;
swap_chain_desc.OutputWindow = hwnd;
swap_chain_desc.Windowed = TRUE;
swap_chain_desc.BufferCount = buffer_count;
swap_chain_desc.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
swap_chain_desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
swap_chain_desc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
D3D_FEATURE_LEVEL feature_level = D3D_FEATURE_LEVEL_10_0;
HRESULT hr = D3D11CreateDeviceAndSwapChain(
NULL,
D3D_DRIVER_TYPE_HARDWARE,
NULL,
D3D11_CREATE_DEVICE_SINGLETHREADED, // | D3D11_CREATE_DEVICE_DEBUG,
NULL,
0,
D3D11_SDK_VERSION,
&swap_chain_desc,
&swap_chain,
&dev,
&feature_level,
&ctx);
if(!SUCCEEDED(hr))
{
fprintf(stderr, "Failed to create D3D11 device (hresult %08x)\n", hr);
return 1;
}
app = d3d11_application_create();
if(!app->init(dev, argc, argv))
return 1;
ShowWindow(hwnd, SW_SHOWDEFAULT);
UpdateWindow(hwnd);
LARGE_INTEGER freq;
QueryPerformanceFrequency(&freq);
double period = 1.0 / (double)freq.QuadPart;
LARGE_INTEGER ctime_li;
QueryPerformanceCounter(&ctime_li);
double start_time = ctime_li.QuadPart * period;
MSG msg;
for(;;)
{
if(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
if(msg.message == WM_QUIT)
break;
TranslateMessage(&msg);
DispatchMessage(&msg);
}
else if(width && height)
{
ID3D11Texture2D* tex;
static ID3D11RenderTargetView* rtv;
ensure(swap_chain->GetBuffer(0, __uuidof(tex), (void**)&tex));
ensure(dev->CreateRenderTargetView(tex, NULL, &rtv));
QueryPerformanceCounter(&ctime_li);
double ctime = (double)ctime_li.QuadPart * period - start_time;
app->draw(ctx, rtv, width, height, ctime);
ctx->OMSetRenderTargets(0, 0, 0);
swap_chain->Present(0, 0);
rtv->Release();
tex->Release();
}
else
WaitMessage();
}
return (int) msg.wParam;
}
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