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#include <windows.h>
#include <windowsx.h>
#include <d3d9.h>
#define SCREEN_WIDTH 800
#define SCREEN_HEIGHT 600
LPDIRECT3D9 d3d;
LPDIRECT3DDEVICE9 d3ddev;
LPDIRECT3DVERTEXBUFFER9 v_buffer = NULL; // the pointer to the v buffer
void initD3D(HWND);
void render_frame(void);
void cleanD3D(void);
void init_graphics(void);
#define CUSTOMFVF (D3DFVF_XYZRHW | D3DFVF_DIFFUSE)
typedef struct CUSTOMVERTEXT{
FLOAT X,Y,Z,RHW;
DWORD COLOR;
}CUSTOMVERTEXT;
LRESULT CALLBACK winProc(HWND, UINT, WPARAM, LPARAM);
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE pevInstance, LPSTR lpCmdLine,
int cmdShow)
{
HWND hwnd;
WNDCLASSEX wc;
ZeroMemory(&wc, sizeof(WNDCLASSEX));
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = winProc;
wc.hInstance = hInstance;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
//wc.hbrBackground = (HBRUSH)COLOR_WINDOW;
wc.lpszClassName = L"WindowClass";
RegisterClassEx(&wc);
hwnd = CreateWindowEx(NULL,
L"WindowClass",
L"Our First D3D Program",
WS_OVERLAPPEDWINDOW,
0,0,
SCREEN_WIDTH,SCREEN_HEIGHT,
NULL,
NULL,
hInstance,
NULL);
ShowWindow(hwnd, cmdShow);
// init D3D
initD3D(hwnd);
// enter main loop
MSG msg;
while (TRUE)
{
while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
if(msg.message == WM_QUIT)
break;
render_frame();
}
// clean up DirectX and COM
cleanD3D();
return msg.wParam;
}
LRESULT CALLBACK winProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_DESTROY:
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hwnd,message,wParam,lParam);
}
void initD3D(HWND hwnd)
{
d3d = Direct3DCreate9(D3D_SDK_VERSION); // create the d3d interface
D3DPRESENT_PARAMETERS d3dpp; // create a struct to old device info
ZeroMemory(&d3dpp, sizeof(d3dpp)); // clear out struct
d3dpp.Windowed = TRUE;
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD; // discard old frames
d3dpp.hDeviceWindow = hwnd; // set window to be used by d3d
d3dpp.BackBufferFormat = D3DFMT_X8R8G8B8;
d3dpp.BackBufferWidth = SCREEN_WIDTH;
d3dpp.BackBufferHeight = SCREEN_HEIGHT;
// create the device
d3d->CreateDevice(D3DADAPTER_DEFAULT,
D3DDEVTYPE_HAL,
hwnd,
D3DCREATE_SOFTWARE_VERTEXPROCESSING,
&d3dpp,
&d3ddev);
}
void render_frame()
{
// clear the window to a deep blue
d3ddev->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0, 40, 100), 1.0f, 0);
d3ddev->BeginScene();
d3ddev->SetFVF(CUSTOMFVF);
d3ddev->SetStreamSource(0,v_buffer,0,sizeof(CUSTOMVERTEXT));
d3ddev->DrawPrimitive(D3DPT_TRIANGLELIST,0,1);
d3ddev->EndScene();
d3ddev->Present(NULL,NULL,NULL,NULL);
init_graphics();
}
void cleanD3D(void)
{
v_buffer->Release();
d3ddev->Release();
d3d->Release();
}
void init_graphics(void) // check the comas if program doesnt run
{
//create the vertices using the custom vertext struct
CUSTOMVERTEXT vertices[] = {
{0, 0, 0.5f, 1.0f, D3DCOLOR_XRGB(0,0,255)},
{300, 600, 0.5f, 1.0f, D3DCOLOR_XRGB(0,255,0)},
{0, 600, 0.5f, 1.0f, D3DCOLOR_XRGB(255,0,0)},
{ 320.0f, 50.0f, 0.5f, 1.0f, D3DCOLOR_XRGB(0, 0, 255) },
{ 520.0f, 400.0f, 0.5f, 1.0f, D3DCOLOR_XRGB(0, 255, 0) },
{ 120.0f, 400.0f, 0.5f, 1.0f, D3DCOLOR_XRGB(255, 0, 0) }
};
//create the vertext buffer
d3ddev->CreateVertexBuffer(6*sizeof(CUSTOMVERTEXT),
0,
CUSTOMFVF,
D3DPOOL_MANAGED,
&v_buffer,
NULL);
VOID* pVoid; // void pointer
// lock vert buffer and load verts into
v_buffer->Lock(0,0,(void**)&pVoid,0);
memcpy(pVoid,vertices,sizeof(vertices));
v_buffer->Unlock();
}
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