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#include <Windows.h>
#include <WindowsX.h>
#include <d3d9.h>
#include <d3dx9.h>
#include <d3dx9math.h>
#define screen_width 800
#define screen_height 600
#pragma comment(lib, "d3d9.lib")
#pragma comment (lib, "d3dx9.lib")
LPDIRECT3D9 d3d;
LPDIRECT3DDEVICE9 d3ddev;
LPDIRECT3DVERTEXBUFFER9 v_buffer = NULL;
void initD3D(HWND hWnd);
void render_frame();
void cleanD3D(void);
void init_graphics(void);
void rotatecolor(int&);
struct CUSTOMVERTEX {FLOAT X, Y, Z; DWORD COLOR;} vertices[3];
#define CUSTOMFVF (D3DFVF_XYZ | D3DFVF_DIFFUSE)
LRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
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.lpszClassName = "WindowClass";
RegisterClassEx(&wc);
hWnd = CreateWindowEx(NULL,
"WindowClass",
"Trigonal",
WS_OVERLAPPEDWINDOW,
0, 45,
screen_width, screen_height,
NULL,
NULL,
hInstance,
NULL);
ShowWindow(hWnd, nCmdShow);
initD3D(hWnd);
MSG msg;
while(TRUE)
{
while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
if(msg.message == WM_QUIT)
break;
render_frame();
}
cleanD3D();
return msg.wParam;
}
LRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch(message)
{
case WM_DESTROY:
{
PostQuitMessage(0);
return 0;
} break;
case WM_KEYDOWN:
{
PostQuitMessage(0);
return 0;
} break;
}
return DefWindowProc(hWnd, message, wParam, lParam);
}
void initD3D(HWND hWnd)
{
d3d = Direct3DCreate9(D3D_SDK_VERSION);
D3DPRESENT_PARAMETERS d3dpp;
ZeroMemory(&d3dpp, sizeof(d3dpp));
d3dpp.Windowed = TRUE;
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
d3dpp.hDeviceWindow = hWnd;
d3dpp.BackBufferFormat = D3DFMT_X8R8G8B8;
d3dpp.BackBufferWidth = screen_width;
d3dpp.BackBufferHeight = screen_height;
d3d->CreateDevice(D3DADAPTER_DEFAULT,
D3DDEVTYPE_HAL,
hWnd,
D3DCREATE_SOFTWARE_VERTEXPROCESSING,
&d3dpp,
&d3ddev);
init_graphics();
d3ddev->SetRenderState(D3DRS_LIGHTING, false);
d3ddev->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);
}
void render_frame(void)
{
static int _r = 0, _g = 0, _b = 0, _cd = 100;
static float indexr = 0.0f; indexr -= 0.05f;
static float indexv = 0.0f;
rotatecolor(_b);
_cd--;
D3DXMATRIX matRotateY;
D3DXMatrixRotationY(&matRotateY, indexr);
if (_cd <= 0)
{
indexv+=0.03f;
D3DXMATRIX matVerticalY;
D3DXMatrixTranslation(&matVerticalY, 0, indexv, 0);
d3ddev->SetTransform(D3DTS_WORLD, &(matRotateY * matVerticalY));
_cd = 0;
}
else
d3ddev->SetTransform(D3DTS_WORLD, &matRotateY);
D3DXMATRIX matView;
D3DXMatrixLookAtLH(&matView,
&D3DXVECTOR3(0.0f, 0.0f, 12.0f),
&D3DXVECTOR3(0.0f, 0.0f, 0.0f),
&D3DXVECTOR3(0.0f, 1.0f, 0.0f));
d3ddev->SetTransform(D3DTS_VIEW, &matView);
D3DXMATRIX matProjection;
D3DXMatrixPerspectiveFovLH(&matProjection,
D3DXToRadian(60),
(FLOAT)screen_width / (FLOAT)screen_height,
1.0f,
100.0f);
d3ddev->SetTransform(D3DTS_PROJECTION, &matProjection);
d3ddev->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(_r, _g, _b), 1.0f, 0);
d3ddev->BeginScene();
d3ddev->SetFVF(CUSTOMFVF);
d3ddev->SetStreamSource(0, v_buffer, 0, sizeof(CUSTOMVERTEX));
d3ddev->DrawPrimitive(D3DPT_TRIANGLELIST, 0, 1);
d3ddev->EndScene();
d3ddev->Present(NULL, NULL, NULL, NULL);
}
void init_graphics(void)
{
vertices[0].COLOR = D3DCOLOR_XRGB(0, 0, 255); vertices[0].X = 3.0f;
vertices[0].Y = -3.0f; vertices[0].Z = 0.0f;
vertices[1].COLOR = D3DCOLOR_XRGB(0, 255, 0); vertices[1].X = 0.0f;
vertices[1].Y = 3.0f; vertices[1].Z = 0.0f;
vertices[2].COLOR = D3DCOLOR_XRGB(255, 0, 0); vertices[2].X = -3.0f;
vertices[2].Y = -3.0f; vertices[2].Z = 0.0f;
d3ddev->CreateVertexBuffer(3*sizeof(CUSTOMVERTEX), 0, CUSTOMFVF, D3DPOOL_MANAGED, &v_buffer, NULL);
VOID* pVoid;
v_buffer->Lock(0, 0, (void**)&pVoid, 0);
memcpy(pVoid, vertices, sizeof(vertices));
v_buffer->Unlock();
}
void cleanD3D(void)
{
v_buffer->Release();
d3ddev->Release();
d3d->Release();
}
void rotatecolor(int& _c)
{
static bool _swp = true;
if (_swp)
{
_c++;
if (_c == 0xFF)
_swp = false;
}
else
{
_c--;
if (_c == 0x00)
_swp = true;
}
}
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