void Main(PlatformAPI *api)
{
// Application settings
Application app;
app.api = api;
SetApplicationTitle(api, "CPU Rasterizer");
// Mouse setup
app.mouse_exclusive = true;
app.mouse_sensitivity = 0.8f * 0.0022f; // Sensitivity * source engine scale
// Setup player properties
app.player_yaw = 0.0f;
app.player_pitch = 0.0f;
app.player_flags = 0;
// Setup camera
app.camera.pos = float3(0.0f, 0.0f, -8.0f);
app.camera.fov = Tau * 0.25f;
// Setup scene
CreateTestScene(app.scene);
// Set events
SetKeyboardEvent(api, &app, OnKeyboardEvent);
SetMouseEvent(api, &app, OnMouseEvent);
SetMouseCaptureMode(api, MouseCaptureModeExclusive);
// Create software renderer
app.renderer = CreateSoftwareRenderer(api, 1280, 720, false);
// Load default font.
app.font = CreateFontFromFile("C:\\Windows\\Fonts\\calibrib.ttf", 18.0f);
// Initialize the rasterizer data
{
app.frame_info = NULL;
// Default framebuffer
app.framebuffer.width = 1280;
app.framebuffer.height = 720;
U32 size = GetRequiredMemoryAmount(app.framebuffer, true, true);
Initialize(app.framebuffer, malloc(size), true, true);
// Threads
CreateRasterizerThreads(app);
}
// Frame update loop
U64 frame_start_time = GetTime(api);
app.frame_delta = 0.0001f;
while (Update(api))
{
// Apply player rotation to camera.
app.camera.axis[0] = float3(1.0f, 0.0f, 0.0f);
app.camera.axis[1] = float3(0.0f, 1.0f, 0.0f);
app.camera.axis[2] = float3(0.0f, 0.0f, 1.0f);
Rotate(app.camera.axis[0], float3(1.0f, 0.0f, 0.0f), app.player_pitch);
Rotate(app.camera.axis[1], float3(1.0f, 0.0f, 0.0f), app.player_pitch);
Rotate(app.camera.axis[2], float3(1.0f, 0.0f, 0.0f), app.player_pitch);
Rotate(app.camera.axis[0], float3(0.0f, 1.0f, 0.0f), app.player_yaw);
Rotate(app.camera.axis[1], float3(0.0f, 1.0f, 0.0f), app.player_yaw);
Rotate(app.camera.axis[2], float3(0.0f, 1.0f, 0.0f), app.player_yaw);
// Apply player movement to camera
float3 player_velocity = 0.0f;
if (app.player_flags & PlayerFlagMoveForward)
player_velocity += app.camera.axis[2];
if (app.player_flags & PlayerFlagMoveBackward)
player_velocity -= app.camera.axis[2];
if (app.player_flags & PlayerFlagMoveRight)
player_velocity -= app.camera.axis[0];
if (app.player_flags & PlayerFlagMoveLeft)
player_velocity += app.camera.axis[0];
if (Dot(player_velocity, player_velocity) != 0.0f)
Normalize(player_velocity);
player_velocity *= 5.0f * app.frame_delta;
app.camera.pos += player_velocity;
// Render the frame
LockBufferInfo frame_info;
LockBuffer(app.renderer, frame_info);
RenderFrame(app, frame_info);
PrintDebugStats(app, frame_info);
UnlockBuffer(app.renderer);
// Calculate frame delta time
U64 time = GetTime(api);
U64 delta = time - frame_start_time;
frame_start_time = time;
app.frame_delta = float(delta) / float(U64(1) << U64(32));
}
}
LRESULT GameMainWindowWindowProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
if (msg>= WM_MOUSEFIRST && msg<= WM_MOUSELAST && msg != WM_MOUSEWHEEL)
{
SetMouseEvent(&win_mouseEvent,msg,wParam,lParam);
}
else switch (msg)
{
case WM_CREATE:
if (english_layout == NULL) english_layout = LoadKeyboardLayout("00000409",KLF_ACTIVATE);
DSReportWindowCreation(hWnd);
return TRUE;
case WM_ENDSESSION:
case WM_CLOSE:
DXCloseMode();
exit(1);
break;
case WM_SETCURSOR: if (LOWORD(lParam) == HTCLIENT)SetCursor(NULL);
else return DefWindowProc(hWnd,msg,wParam,lParam);break;
return TRUE;
case WM_EXTRACHAR: if (noextra) {noextra = FALSE;break; }
case WM_CHAR:
if (keyqueuelen<16)
{
memmove(keyqueue,keyqueue+1,sizeof(*keyqueue)*keyqueuelen);
keyqueuelen++;
keyqueue[0] = MAKEWORD(wParam,HIWORD(lParam));
}
if (msg == WM_CHAR) noextra = TRUE;
break;
case WM_MOUSEWHEEL:
{
short delta = HIWORD(wParam);
if (keyqueuelen<16)
{
memmove(keyqueue,keyqueue+1,sizeof(*keyqueue)*keyqueuelen);
keyqueuelen++;
keyqueue[0] = MAKEWORD(0,delta<0?wheel_mapping[0]:wheel_mapping[1]);
}
break;
}
case WM_ACTIVATE:
{
int fActive = LOWORD(wParam);
ActiveWindow = fActive != WA_INACTIVE;
break;
}
case WM_PAINT:
{
PAINTSTRUCT ps;
BeginPaint(hWnd,&ps);
DXCopyRects64(0,0,640,480);
EndPaint(hWnd,&ps);
break;
}
case WM_RELOADMAP:
{
char buff[256];
int sektor = wParam;
GlobalGetAtomName((ATOM)lParam,buff,256);
GlobalDeleteAtom((ATOM)lParam);
send_message(E_RELOADMAP,buff,sektor);
break;
}
default: return DefWindowProc(hWnd,msg,wParam,lParam);break;
}
return 0;
}
