D3D Text uses up too much RAM..? - c++

Question

I have a VC++ DirectX application that renders a 3D cube, with the camera that can be moved around with W,A,S,D keys and mouse. In the top-left corner, a text shows the current camera coordinates; however, after 10-15 seconds, the allocated RAM and CPU increase to 1.6Gb and almost 50% of the total.. This happens only if I enable the text (even if the movement is still "FLOPS-based", so it's anyway a little "rusty" sometimes, with or without text print).
I guess having the text to be rendered over and over again causes the RAM to fill up because it won't "release" the previously written one..?
Here's my code (a bit long, I included everything 'cuz maybe is something else - however, I don't recommend you to run it since it could, in the worst case, freeze all the RAM up!):
#include <windows.h> // form header
#include <windowsx.h> // form header 2
#include <d3d9.h> // Direct3D9 header
#include <d3dx9.h> // DirectX9 header
#include <conio.h>
#include <dinput.h> // DirectInput header
#include <math.h>
#include <string>
using namespace std;
const double PI = 3.1415926;
// include the Direct3D Library file
#pragma comment (lib, "d3d9.lib")
#pragma comment (lib, "d3dx9.lib")
// include the DirectInput8 Library file
#pragma comment (lib, "dinput8.lib")
#pragma comment (lib, "dxguid.lib")
// define the screen resolution
#define SCREEN_WIDTH 1024
#define SCREEN_HEIGHT 768
// global declarations
LPDIRECT3D9 d3d; // the pointer to our Direct3D interface
LPDIRECT3DDEVICE9 d3ddev; // the pointer to the device class
LPDIRECT3DVERTEXBUFFER9 v_buffer = NULL; // the pointer to the vertex buffer
LPDIRECT3DINDEXBUFFER9 i_buffer; // the pointer to an index buffer
LPDIRECT3DTEXTURE9 texture; // declare a texture
LPDIRECT3DTEXTURE9 bump;
LPDIRECTINPUT8 din; // the pointer to our DirectInput interface
LPDIRECTINPUTDEVICE8 dinkeyboard; // the pointer to the keyboard device
LPDIRECTINPUTDEVICE8 dinmouse; // the pointer to the mouse device
BYTE keystate[256]; // the storage for the key-information
DIMOUSESTATE mousestate; // the storage for the mouse-information
ID3DXFont *dxfont;
VOID* pVoid; // a void pointer
// function prototypes
void initD3D(HWND hWnd); // sets up and initializes Direct3D
void render_frame(void); // renders a single frame
void cleanD3D(void); // closes Direct3D and releases memory
void init_graphics(void); // 3D declarations
void init_light(void); // sets up the light and the material
void initDInput(HINSTANCE hInstance, HWND hWnd); // sets up and initializes DirectInput
void detect_input(void); // gets the current input state
void cleanDInput(void); // closes DirectInput and releases memory
void PrintText(char* str, int size, int x, int y, DWORD color);
inline DWORD F2DW( FLOAT f ) { return *((DWORD*)&f); }
struct CUSTOMVERTEX {FLOAT X, Y, Z; D3DVECTOR NORMAL; FLOAT U,V;};
#define CUSTOMFVF (D3DFVF_XYZ | D3DFVF_NORMAL | D3DFVF_TEX1)
// the WindowProc function prototype
LRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
// the entry point for any Windows program
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
HWND hWnd;
WNDCLASSEX wc;
ZeroMemory(&wc, sizeof(WNDCLASSEX));
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WindowProc;
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 Direct3D Program",
WS_OVERLAPPEDWINDOW, // non-fullscreen values
0, 0, // the starting x and y positions should be 0
SCREEN_WIDTH, SCREEN_HEIGHT, // set window to new resolution
NULL,
NULL,
hInstance,
NULL);
ShowWindow(hWnd, nCmdShow);
// set up and initialize Direct3D
initD3D(hWnd);
initDInput(hInstance, hWnd); // initialize DirectInput
// enter the main loop:
MSG msg;
while(TRUE)
{
while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
if(msg.message == WM_QUIT)
break;
detect_input(); // update the input data before rendering
render_frame();
if(keystate[DIK_ESCAPE] & 0x80)
PostMessage(hWnd, WM_DESTROY, 0, 0);
}
// clean up DirectX and COM
cleanD3D();
cleanDInput(); // release DirectInput
return msg.wParam;
}
// this is the main message handler for the program
LRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch(message)
{
case WM_DESTROY:
{
PostQuitMessage(0);
return 0;
} break;
}
return DefWindowProc (hWnd, message, wParam, lParam);
}
// this function initializes and prepares Direct3D for use
void initD3D(HWND hWnd)
{
d3d = Direct3DCreate9(D3D_SDK_VERSION); // create the Direct3D interface
D3DPRESENT_PARAMETERS d3dpp; // create a struct to hold various device information
ZeroMemory(&d3dpp, sizeof(d3dpp)); // clear out the struct for use
d3dpp.Windowed = TRUE; // program fullscreen, not windowed
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD; // discard old frames
d3dpp.hDeviceWindow = hWnd; // set the window to be used by Direct3D
d3dpp.BackBufferFormat = D3DFMT_X8R8G8B8; // set the back buffer format to 32-bit
d3dpp.BackBufferWidth = SCREEN_WIDTH; // set the width of the buffer
d3dpp.BackBufferHeight = SCREEN_HEIGHT; // set the height of the buffer
d3dpp.EnableAutoDepthStencil = TRUE;
d3dpp.AutoDepthStencilFormat = D3DFMT_D16;
// create a device class using this information and the info from the d3dpp stuct
d3d->CreateDevice(D3DADAPTER_DEFAULT,
D3DDEVTYPE_HAL,
hWnd,
D3DCREATE_SOFTWARE_VERTEXPROCESSING,
&d3dpp,
&d3ddev);
d3ddev->SetRenderState(D3DRS_LIGHTING, TRUE); // turn off the 3D lighting
d3ddev->SetRenderState(D3DRS_ZENABLE, TRUE); // turn on the z-buffer
d3ddev->SetRenderState(D3DRS_AMBIENT, D3DCOLOR_XRGB(50, 50, 50)); // ambient light
init_graphics(); // call the function to initialize the triangle
init_light(); // call the function to initialize the light and material
d3ddev->SetRenderState(D3DRS_LIGHTING, TRUE); // turn on the 3D lighting
d3ddev->SetRenderState(D3DRS_ZENABLE, TRUE); // turn on the z-buffer
d3ddev->SetRenderState(D3DRS_AMBIENT, D3DCOLOR_XRGB(50, 50, 50)); // ambient light
d3ddev->SetRenderState(D3DRS_NORMALIZENORMALS, TRUE); // handle the normal lenght
d3ddev->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE); // turn color blending on
// set filters and samples
d3ddev->SetSamplerState(0, D3DSAMP_MAXANISOTROPY, 8);
d3ddev->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_ANISOTROPIC);
d3ddev->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR);
d3ddev->SetSamplerState(0, D3DSAMP_MIPFILTER, D3DTEXF_LINEAR);
//d3ddev->SetRenderState(D3DRS_BLENDOP, D3DBLENDOP_ADD); // set the blending operation
//d3ddev->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_SRCALPHA); // set the source blending
//d3ddev->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA); // set the destination blending
D3DXCreateTextureFromFile(d3ddev, // the Direct3D device
L"brick.bmp", // the filename of the texture
&texture); // the address of the texture storage
D3DXCreateTextureFromFile(d3ddev,
L"bump.bmp",
&bump);
//d3ddev->SetRenderState(D3DRS_TEXTUREFACTOR, D3DCOLOR_XRGB(200, 200, 200));
//d3ddev->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_DOTPRODUCT3);
//d3ddev->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
//d3ddev->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_TFACTOR);
//d3ddev->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_SELECTARG1);
//d3ddev->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_DIFFUSE);
//d3ddev->SetTextureStageState(1, D3DTSS_COLOROP, D3DTOP_MODULATE);
//d3ddev->SetTextureStageState(1, D3DTSS_COLORARG1, D3DTA_CURRENT);
//d3ddev->SetTextureStageState(1, D3DTSS_COLORARG2, D3DTA_TEXTURE);
//d3ddev->SetTextureStageState(1, D3DTSS_ALPHAOP, D3DTOP_SELECTARG1);
//d3ddev->SetTextureStageState(1, D3DTSS_ALPHAARG1, D3DTA_DIFFUSE);
d3ddev->SetTextureStageState(2, D3DTSS_COLOROP, D3DTOP_DISABLE);
d3ddev->SetTextureStageState(2, D3DTSS_ALPHAOP, D3DTOP_DISABLE);
//D3DXAssembleShaderFromFile("shader1.fx", 0 , NULL, &pCode, NULL );
}
// Hypotenuse function
float hypo(float x,float y)
{
float hypo=sqrt(x*x+y*y);
return hypo;
}
// this is the function used to render a single frame
void render_frame(void)
{
// clear the window to a specified color
d3ddev->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0, 0, 0), 1.0f, 0);
d3ddev->Clear(0, NULL, D3DCLEAR_ZBUFFER, D3DCOLOR_XRGB(0, 0, 0), 1.0f, 0);
d3ddev->BeginScene(); // begins the 3D scene
d3ddev->SetFVF(CUSTOMFVF); // tells Direct3D what FVF code we are using currently
// set the texture
d3ddev->SetTexture(1, bump);
d3ddev->SetTexture(0, texture);
///////
D3DXMATRIX matTranslateA; // a matrix to store the translation for triangle A
D3DXMATRIX matTranslateB; // a matrix to store the translation for triangle B
D3DXMATRIX matRotate; // a matrix to store the rotation for each triangle
D3DXMATRIX matRotate2;
D3DXMATRIX matScale;
static float index = 0.0f; // left movement (A)
static float index2 = 10.0f; // upward movement (PRIOR)
static float index3 = 18.0f; // backward movement (S) -- 1.0f
static float index4 = 0.0f; // left lookAt
static float index5 = 10.0f; // upward lookAt
static float index6 = 18.0f; // backward lookAt
// camera variables
static float radius = 30.00f;
static float theta = (3.0f * D3DX_PI) / 2.0f;
static float phi = D3DX_PI/2;
float Cx, Cy, Cz;
static int field = 45;
float slide = 0.001f;
static float dist1 = fabs(index-index4);
static float dist2 = fabs(index2-index5);
static float dist3 = fabs(index3-index6);
// player movements
// mouse movements
field -= 0.01 * mousestate.lZ;
theta += slide * mousestate.lX;
phi -= slide * mousestate.lY;
if(phi >= (D3DX_PI/9) * 8)
{
phi = (D3DX_PI/9) * 8;
}
if(phi <= (D3DX_PI/9))
{
phi = (D3DX_PI/9);
}
Cx = radius * cosf(theta) * sinf(phi);
Cy = radius * cosf(phi);
Cz = radius * sinf(theta) * sinf(phi);
float mov = radius*0.012;
float mov1 = Cz*0.012;
float mov2 = -Cx*0.012;
// previous index. values
float indexb = index;
float index3b = index3;
//if (GetAsyncKeyState(VK_SHIFT)) // --- 0.06f/0.03f
//{
if (keystate[DIK_A] & 0x80)
{
index=index-mov1;
index3=index3+mov2;
}
if (keystate[DIK_D] & 0x80)
{
index=index+mov1;
index3=index3-mov2;
}
if (keystate[DIK_PRIOR] & 0x80) // up +
{
index2+=0.22f;
}
if (keystate[DIK_NEXT] & 0x80) // down -
{
index2-=0.22f;
}
if (keystate[DIK_W] & 0x80) // prior
{
index3=index3+mov1;
index=index+mov2;
}
if (keystate[DIK_S] & 0x80) // next
{
index3=index3-mov1;
index=index-mov2;
}
if (keystate[DIK_SPACE] & 0x80) // next
{
// JUMP!!!!!!!!!!!!
}
if (hypo(index-indexb,index3-index3b)>mov)
{
index=indexb+0.7071*(index-indexb);
index3=index3b+0.7071*(index3-index3b);
}
// print a text
char msg1[64], msg2[64], msg3[64];
sprintf (msg1, "X axis: %f", index);
sprintf (msg2, "Z axis: %f", index3);
PrintText(msg1, 20, 30, 30, D3DCOLOR_XRGB(255,255,255));
PrintText(msg2, 20, 30, 60, D3DCOLOR_XRGB(255,255,255));
//}
/*else
if (GetAsyncKeyState(VK_LEFT))
{
index+=0.06f;
index4+=0.06f;
}
if (GetAsyncKeyState(VK_RIGHT))
{
index-=0.06f;
index4-=0.06f;
}
if (GetAsyncKeyState(VK_PRIOR))
{
index2-=0.06f;
index5-=0.06f;
}
if (GetAsyncKeyState(VK_NEXT))
{
index2+=0.06f;
index5+=0.06f;
}
if (GetAsyncKeyState(VK_UP))
{
index3-=0.03f;
index6-=0.06f;
}
if (GetAsyncKeyState(VK_DOWN))
{
index3+=0.03f;
index6+=0.06f;
}*/
// build MULTIPLE matrices to translate the model and one to rotate
D3DXMatrixTranslation(&matTranslateA, 0.0f, 0.0f, 0.0f);
//D3DXMatrixTranslation(&matTranslateB, 0.0f, 0.0f, -3.0f);
D3DXMatrixRotationY(&matRotate, 0.0f); // the front side --- index
D3DXMatrixRotationX(&matRotate2, 0.0f); // index2
D3DXMatrixScaling(&matScale, 1.0f, 1.0f, 1.0f); // index3
///////
D3DXMATRIX matView; // the view transform matrix
D3DXMatrixLookAtLH(&matView,
&D3DXVECTOR3 (index, index2, index3), // the camera position --- (0.0f, 10.0f, 18.0f)
&D3DXVECTOR3 (index-Cx, index2-Cy, index3+Cz), // the look-at position --- (0.0f, 0.0f, 0.0f)
&D3DXVECTOR3 (0.0f, 1.0f, 0.0f)); // the up direction
d3ddev->SetTransform(D3DTS_VIEW, &matView); // set the view transform to matView
D3DXMATRIX matProjection; // the projection transform matrix
D3DXMatrixPerspectiveFovLH(&matProjection,
D3DXToRadian(field), // the horizontal field of view
(FLOAT)SCREEN_WIDTH / (FLOAT)SCREEN_HEIGHT, // aspect ratio
1.0f, // the near view-plane
100.0f); // the far view-plane
d3ddev->SetTransform(D3DTS_PROJECTION, &matProjection); // set the projection
// tell Direct3D about each world transform, and then draw another triangle
d3ddev->SetTransform(D3DTS_WORLD, &(matTranslateA * matRotate * matRotate2 * matScale));
///////
/// select the vertex and index buffers to use
d3ddev->SetStreamSource(0, v_buffer, 0, sizeof(CUSTOMVERTEX));
d3ddev->SetIndices(i_buffer);
// draw the cube
d3ddev->DrawIndexedPrimitive(D3DPT_TRIANGLELIST, 0, 0, 24, 0, 12);
d3ddev->EndScene(); // ends the 3D scene
d3ddev->Present(NULL, NULL, NULL, NULL); // displays the created frame on the screen
}
// this is the function that cleans up Direct3D and COM
void cleanD3D(void)
{
v_buffer->Release(); // close and release the vertex buffer
//i_buffer->Release(); // close and release the index buffer
texture->Release(); // close and release the texture
d3ddev->Release(); // close and release the 3D device
d3d->Release(); // close and release Direct3D
}
// this is the function that puts the 3D models into video RAM
void init_graphics(void)
{
// create the vertices using the CUSTOMVERTEX struct
CUSTOMVERTEX vertices[] =
{
{ -3.0f, -3.0f, 3.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f }, // side 1
{ 3.0f, -3.0f, 3.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.0f },
{ -3.0f, 3.0f, 3.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f },
{ 3.0f, 3.0f, 3.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f },
{ 3.0f, -3.0f, -3.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f }, // side 2
{ -3.0f, -3.0f, -3.0f, 0.0f, 0.0f, -1.0f, 1.0f, 0.0f },
{ 3.0f, 3.0f, -3.0f, 0.0f, 0.0f, -1.0f, 0.0f, 1.0f },
{ -3.0f, 3.0f, -3.0f, 0.0f, 0.0f, -1.0f, 1.0f, 1.0f },
{ -3.0f, 3.0f, -3.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f }, // side 3
{ -3.0f, 3.0f, 3.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f },
{ 3.0f, 3.0f, -3.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f },
{ 3.0f, 3.0f, 3.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f },
{ -3.0f, -3.0f, -3.0f, 0.0f, -1.0f, 0.0f, 0.0f, 0.0f }, // side 4
{ 3.0f, -3.0f, -3.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f },
{ -3.0f, -3.0f, 3.0f, 0.0f, -1.0f, 0.0f, 0.0f, 1.0f },
{ 3.0f, -3.0f, 3.0f, 0.0f, -1.0f, 0.0f, 1.0f, 1.0f },
{ 3.0f, -3.0f, 3.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f }, // side 5
{ 3.0f, -3.0f, -3.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f },
{ 3.0f, 3.0f, 3.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f },
{ 3.0f, 3.0f, -3.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f },
{ -3.0f, -3.0f, -3.0f, -1.0f, 0.0f, 0.0f, 0.0f, 0.0f }, // side 6
{ -3.0f, -3.0f, 3.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f },
{ -3.0f, 3.0f, -3.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f },
{ -3.0f, 3.0f, 3.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f },
};
// create a vertex buffer interface called v_buffer
d3ddev->CreateVertexBuffer(24*sizeof(CUSTOMVERTEX),
0,
CUSTOMFVF,
D3DPOOL_MANAGED,
&v_buffer,
NULL);
VOID* pVoid; // a void pointer
// lock v_buffer and load the vertices into it
v_buffer->Lock(0, 0, (void**)&pVoid, 0);
memcpy(pVoid, vertices, sizeof(vertices));
v_buffer->Unlock();
// create the indices using an int array
short indices[] =
{
0, 1, 2, // side 1
2, 1, 3,
4, 5, 6, // side 2
6, 5, 7,
8, 9, 10, // side 3
10, 9, 11,
12, 13, 14, // side 4
14, 13, 15,
16, 17, 18, // side 5
18, 17, 19,
20, 21, 22, // side 6
22, 21, 23,
};
// create an index buffer interface called i_buffer
d3ddev->CreateIndexBuffer(36*sizeof(short),
0,
D3DFMT_INDEX16,
D3DPOOL_MANAGED,
&i_buffer,
NULL);
// lock i_buffer and load the indices into it
i_buffer->Lock(0, 0, (void**)&pVoid, 0);
memcpy(pVoid, indices, sizeof(indices));
i_buffer->Unlock();
}
// this is the function that sets up the lights and materials
void init_light(void)
{
D3DLIGHT9 light; // create the light struct
D3DMATERIAL9 material; // create the material struct
ZeroMemory(&light, sizeof(light)); // clear out the light struct for use
light.Type = D3DLIGHT_POINT; // make the light type 'point light'
light.Diffuse = D3DXCOLOR(1.0f, 1.0f, 1.0f, 1.0f); // set the light's color
//light.Specular = D3DXCOLOR(5.5f, 5.5f, 5.5f, 1.0f);
light.Position = D3DXVECTOR3(10.0f, 10.0f, 5.0f);
light.Range = 100.0f;
//light.Direction = D3DXVECTOR3(-1.0f, -0.3f, -1.0f);
light.Attenuation0 = 0.0f; // constant attenuation
light.Attenuation1 = 0.0f; // inverse attenuation
light.Attenuation2 = 0.01f; // square inverse attenuation
d3ddev->SetLight(0, &light); // send the light struct properties to light #0
d3ddev->LightEnable(0, TRUE); // turn on light #0
ZeroMemory(&material, sizeof(D3DMATERIAL9)); // clear out the struct for use
material.Diffuse = D3DXCOLOR(1.0f, 1.0f, 1.0f, 1.0f); // set diffuse color
material.Ambient = D3DXCOLOR(1.0f, 1.0f, 1.0f, 1.0f); // set ambient color
d3ddev->SetMaterial(&material); // set the globably-used material to &material
}
// this is the function that initializes DirectInput
void initDInput(HINSTANCE hInstance, HWND hWnd)
{
// create the DirectInput interface
DirectInput8Create(hInstance, // the handle to the application
DIRECTINPUT_VERSION, // the compatible version
IID_IDirectInput8, // the DirectInput interface version
(void**)&din, // the pointer to the interface
NULL); // COM stuff, so we'll set it to NULL
// create the keyboard device
din->CreateDevice(GUID_SysKeyboard, // the default keyboard ID being used
&dinkeyboard, // the pointer to the device interface
NULL); // COM stuff, so we'll set it to NULL
din->CreateDevice(GUID_SysMouse,
&dinmouse,
NULL);
// set the data format to keyboard format
dinkeyboard->SetDataFormat(&c_dfDIKeyboard);
dinmouse->SetDataFormat(&c_dfDIMouse);
// set the control you will have over the keyboard
dinkeyboard->SetCooperativeLevel(hWnd, DISCL_NONEXCLUSIVE | DISCL_FOREGROUND);
dinmouse->SetCooperativeLevel(hWnd, DISCL_EXCLUSIVE | DISCL_FOREGROUND);
}
// this is the function that gets the latest input data
void detect_input(void)
{
// get access if we don't have it already
dinkeyboard->Acquire();
dinmouse->Acquire();
// get the input data
dinkeyboard->GetDeviceState(256, (LPVOID)keystate);
dinmouse->GetDeviceState(sizeof(DIMOUSESTATE), (LPVOID)&mousestate);
}
// this is the function that closes DirectInput
void cleanDInput(void)
{
dinkeyboard->Unacquire(); // make sure the keyboard is unacquired
dinmouse->Unacquire(); // make sure the mouse in unacquired
din->Release(); // close DirectInput before exiting
}
void PrintText(char* str, int size, int x, int y, DWORD color)
{
static RECT textbox;
SetRect(&textbox, x, y, SCREEN_WIDTH, SCREEN_HEIGHT);
D3DXCreateFont(d3ddev, // the D3D Device
size, // font height
0, // default font width
FW_NORMAL, // font weight
1, // not using MipLevels
false, // italic font
DEFAULT_CHARSET, // default character set
OUT_DEFAULT_PRECIS, // default OutputPrecision,
DEFAULT_QUALITY, // default Quality
DEFAULT_PITCH | FF_DONTCARE, // default pitch and family
L"Arial", // use Facename Arial
&dxfont); // the font object
dxfont->DrawTextA(NULL,
str,
strlen(str),
&textbox,
DT_LEFT | DT_TOP,
color);
}

Answer 1

Don't create a new font object every time you print text.

Answer 2

As stefan posted, a new font is being created every time the PrintText function is called.
One way to fix this would be to move the D3DXCreateFont function call into the initD3D function, and add a matching dxfont->Release(); to the cleanD3D function.