5. Quad

22744 단어 ad
#include<d3d9.h>

#define WINDOW_CLASS "UGPDX"
#define WINDOW_NAME "Drawing a Quad"

// Function Prototypes...
bool InitializeD3D(HWND hWnd, bool fullscreen);
bool InitializeObjects();
void RenderScene();
void Shutdown();


// Direct3D object and device.
LPDIRECT3D9 g_D3D = NULL;
LPDIRECT3DDEVICE9 g_D3DDevice
= NULL;

// Vertex buffer to hold the geometry.
LPDIRECT3DVERTEXBUFFER9 g_VertexBuffer = NULL;

// A structure for our custom vertex type
struct stD3DVertex
{
float x, y, z, rhw;
unsigned
long color;
};

// Our custom FVF, which describes our custom vertex structure
#define D3DFVF_VERTEX (D3DFVF_XYZRHW | D3DFVF_DIFFUSE)


LRESULT WINAPI MsgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch(msg)
{
case WM_DESTROY:
PostQuitMessage(
0);
return 0;
break;

case WM_KEYUP:
if(wParam == VK_ESCAPE) PostQuitMessage(0);
break;
}

return DefWindowProc(hWnd, msg, wParam, lParam);
}


int WINAPI WinMain(HINSTANCE hInst, HINSTANCE prevhInst, LPSTR cmdLine, int show)
{
// Register the window class
WNDCLASSEX wc = { sizeof(WNDCLASSEX), CS_CLASSDC, MsgProc, 0L, 0L,
GetModuleHandle(NULL), NULL, NULL, NULL, NULL,
WINDOW_CLASS, NULL };
RegisterClassEx(
&wc);

// Create the application's window
HWND hWnd = CreateWindow(WINDOW_CLASS, WINDOW_NAME, WS_OVERLAPPEDWINDOW,
100, 100, 640, 480, GetDesktopWindow(), NULL,
wc.hInstance, NULL);

// Initialize Direct3D
if(InitializeD3D(hWnd, false))
{
// Show the window
ShowWindow(hWnd, SW_SHOWDEFAULT);
UpdateWindow(hWnd);

// Enter the message loop
MSG msg;
ZeroMemory(
&msg, sizeof(msg));

while(msg.message != WM_QUIT)
{
if(PeekMessage(&msg, NULL, 0U, 0U, PM_REMOVE))
{
TranslateMessage(
&msg);
DispatchMessage(
&msg);
}
else
RenderScene();
}
}

// Release any and all resources.
Shutdown();

// Unregister our window.
UnregisterClass(WINDOW_CLASS, wc.hInstance);
return 0;
}


bool InitializeD3D(HWND hWnd, bool fullscreen)
{
D3DDISPLAYMODE displayMode;

// Create the D3D object.
g_D3D = Direct3DCreate9(D3D_SDK_VERSION);
if(g_D3D == NULL) return false;

// Get the desktop display mode.
if(FAILED(g_D3D->GetAdapterDisplayMode(D3DADAPTER_DEFAULT, &displayMode)))
return false;

// Set up the structure used to create the D3DDevice
D3DPRESENT_PARAMETERS d3dpp;
ZeroMemory(
&d3dpp, sizeof(d3dpp));

if(fullscreen)
{
d3dpp.Windowed
= FALSE;
d3dpp.BackBufferWidth
= 640;
d3dpp.BackBufferHeight
= 480;
}
else
d3dpp.Windowed
= TRUE;
d3dpp.SwapEffect
= D3DSWAPEFFECT_DISCARD;
d3dpp.BackBufferFormat
= displayMode.Format;

// Create the D3DDevice
if(FAILED(g_D3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd,
D3DCREATE_SOFTWARE_VERTEXPROCESSING,
&d3dpp, &g_D3DDevice)))
{
return false;
}

// Initialize any objects we will be displaying.
if(!InitializeObjects()) return false;

return true;
}


bool InitializeObjects()
{
// Fill in our structure to draw an object.
// x, y, z, rhw, color.
stD3DVertex objData[] =
{
{
420, 150, 0.5f, 1, D3DCOLOR_XRGB(255, 255, 255), },
{
420, 350, 0.5f, 1, D3DCOLOR_XRGB(255, 255, 255), },
{
220, 150, 0.5f, 1, D3DCOLOR_XRGB(255, 255, 255), },
{
220, 350, 0.5f, 1, D3DCOLOR_XRGB(255, 255, 255), },
};

// Create the vertex buffer.
if(FAILED(g_D3DDevice->CreateVertexBuffer(sizeof(objData),
0, D3DFVF_VERTEX, D3DPOOL_DEFAULT, &g_VertexBuffer,
NULL)))
return false;

// Fill the vertex buffer.
void *ptr;

if(FAILED(g_VertexBuffer->Lock(0, sizeof(objData),
(
void**)&ptr, 0))) return false;

memcpy(ptr, objData,
sizeof(objData));

g_VertexBuffer
->Unlock();

return true;
}


void RenderScene()
{
// Clear the backbuffer.
g_D3DDevice->Clear(0, NULL, D3DCLEAR_TARGET,
D3DCOLOR_XRGB(
0,0,255), 1.0f, 0);

// Begin the scene. Start rendering.
g_D3DDevice->BeginScene();

// Render quad.
g_D3DDevice->SetStreamSource(0, g_VertexBuffer,
0, sizeof(stD3DVertex));
g_D3DDevice
->SetFVF(D3DFVF_VERTEX);
g_D3DDevice
->DrawPrimitive(D3DPT_TRIANGLESTRIP, 0, 2);

// End the scene. Stop rendering.
g_D3DDevice->EndScene();

// Display the scene.
g_D3DDevice->Present(NULL, NULL, NULL, NULL);
}


void Shutdown()
{
if(g_D3DDevice != NULL) g_D3DDevice->Release();
if(g_D3D != NULL) g_D3D->Release();
if(g_VertexBuffer != NULL) g_VertexBuffer->Release();

g_D3DDevice
= NULL;
g_D3D
= NULL;
g_VertexBuffer
= NULL;
}

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