void CFilterMoog::Init(struct MOOGFILTERCREATESTRUCT& m)
{
//frequency first then resonance
//resonance depends on frequency but not vice versa
UpdateFrequency(m);
UpdateResonance(m);
}
void KeyDown(WPARAM wParam, LPARAM lParam)
{
int value;
switch(wParam)
{
// Right, increase frequency
case VK_RIGHT:
if (++scale.v > FREQ_MAX)
scale.v = FREQ_MAX;
break;
// Left, decrease frequency
case VK_LEFT:
if (--scale.v < FREQ_MIN)
scale.v = FREQ_MIN;
break;
default:
return;
}
UpdateFrequency();
}
void CAESound::UpdateParameters(int16_t a2)
{
if (GetLifespanTiedToPhysicalEntity())
{
if (m_physicalEntity)
{
SetPosition(m_physicalEntity->GetPos());
}
else
{
m_playingState = 1;
}
}
if (GetRequestUpdates())
{
if (m_baseAudio)
{
(**(void (__stdcall ***)(_DWORD, _DWORD))m_baseAudio)(pThis, a2);
UpdateFrequency();
}
}
}
void CFilterMoog::setCutoffFrequencyHighpass(float cFrequency)
{
m_HP.cFrequency = cFrequency;
UpdateFrequency(m_HP);
}
void CFilterMoog::setCutoffFrequencyLowpass(float cFrequency)
{
m_LP.cFrequency = cFrequency;
UpdateFrequency(m_LP);
}
LRESULT CALLBACK MainWndProc(HWND hWnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam)
{
switch (uMsg)
{
case WM_CREATE:
// Get the window and client dimensions
GetClientRect(hWnd, &window.rect);
int width = window.rect.right - window.rect.left;
int height = window.rect.bottom - window.rect.top;
// Create status bar
status.hwnd =
CreateWindow(STATUSCLASSNAME,
" Turn knob to adjust measurement frequency",
WS_VISIBLE | WS_CHILD,
0, 0, 0, 0,
hWnd, (HMENU)STATUS_ID, hInst, NULL);
// Create tooltip
tooltip.hwnd =
CreateWindow(TOOLTIPS_CLASS, NULL,
WS_POPUP | TTS_ALWAYSTIP,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
hWnd, NULL, hInst, NULL);
SetWindowPos(tooltip.hwnd, HWND_TOPMOST, 0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
tooltip.info.cbSize = sizeof(tooltip.info);
tooltip.info.hwnd = hWnd;
tooltip.info.uFlags = TTF_IDISHWND | TTF_SUBCLASS;
// Create scale
scale.hwnd =
CreateWindow(WC_STATIC, NULL,
WS_VISIBLE | WS_CHILD |
SS_NOTIFY | SS_OWNERDRAW,
8, 8, 160, 40, hWnd,
(HMENU)SCALE_ID, hInst, NULL);
// Add scale to tooltip
tooltip.info.uId = (UINT_PTR)scale.hwnd;
tooltip.info.lpszText = "Frequency scale";
SendMessage(tooltip.hwnd, TTM_ADDTOOL, 0,
(LPARAM) &tooltip.info);
// Create knob
knob.hwnd =
CreateWindow(KNOBCLASS, NULL,
WS_VISIBLE | WS_CHILD,
4, 52, 168, 168, hWnd,
(HMENU)KNOB_ID, hInst, NULL);
// Add knob to tooltip
tooltip.info.uId = (UINT_PTR)knob.hwnd;
tooltip.info.lpszText = "Frequency adjustment knob";
SendMessage(tooltip.hwnd, TTM_ADDTOOL, 0,
(LPARAM) &tooltip.info);
// Create display
display.hwnd =
CreateWindow(WC_STATIC, NULL,
WS_VISIBLE | WS_CHILD |
SS_NOTIFY | SS_OWNERDRAW,
176, 8, width - 184, 50, hWnd,
(HMENU)DISPLAY_ID, hInst, NULL);
// Add display to tooltip
tooltip.info.uId = (UINT_PTR)display.hwnd;
tooltip.info.lpszText = "Frequency and level display";
SendMessage(tooltip.hwnd, TTM_ADDTOOL, 0,
(LPARAM) &tooltip.info);
// Create meter
meter.hwnd =
CreateWindow(WC_STATIC, NULL,
WS_VISIBLE | WS_CHILD |
SS_NOTIFY | SS_OWNERDRAW,
176, 66, width - 184, 50, hWnd,
(HMENU)METER_ID, hInst, NULL);
// Add meter to tooltip
tooltip.info.uId = (UINT_PTR)meter.hwnd;
tooltip.info.lpszText = "Level meter";
SendMessage(tooltip.hwnd, TTM_ADDTOOL, 0,
(LPARAM) &tooltip.info);
// Create meter slider
meter.slider.hwnd =
CreateWindow(TRACKBAR_CLASS, NULL,
WS_VISIBLE | WS_CHILD |
TBS_HORZ | TBS_NOTICKS | TBS_TOP,
178, 92, width - 188, 20, hWnd,
(HMENU)SLIDER_ID, hInst, NULL);
SendMessage(meter.slider.hwnd, TBM_SETRANGE, TRUE,
MAKELONG(MIN_METER, MAX_METER));
SendMessage(meter.slider.hwnd, TBM_SETPOS, TRUE, MIN_METER);
// Add slider to tooltip
tooltip.info.uId = (UINT_PTR)meter.slider.hwnd;
tooltip.info.lpszText = "Level meter";
SendMessage(tooltip.hwnd, TTM_ADDTOOL, 0,
(LPARAM) &tooltip.info);
// Create spectrum
spectrum.hwnd =
CreateWindow(WC_STATIC, NULL,
WS_VISIBLE | WS_CHILD |
SS_NOTIFY | SS_OWNERDRAW,
176, 122, width - 184, 50, hWnd,
(HMENU)SPECTRUM_ID, hInst, NULL);
// Add spectrum to tooltip
tooltip.info.uId = (UINT_PTR)spectrum.hwnd;
tooltip.info.lpszText = "Frequency spectrum";
SendMessage(tooltip.hwnd, TTM_ADDTOOL, 0,
(LPARAM) &tooltip.info);
// Create quit button
quit.hwnd =
CreateWindow(WC_BUTTON, "Quit",
WS_VISIBLE | WS_CHILD,
width - 80, 194, 72, 24, hWnd,
(HMENU)QUIT_ID, hInst, NULL);
// Start audio thread
audio.thread = CreateThread(NULL, 0, AudioThread, hWnd, 0, &audio.id);
// Start meter timer
CreateTimerQueueTimer(&meter.timer, NULL,
(WAITORTIMERCALLBACK)MeterCallback,
&meter, METER_DELAY, METER_DELAY,
WT_EXECUTEDEFAULT);
// Update frequency
UpdateFrequency();
break;
// Colour static text
case WM_CTLCOLORSTATIC:
return (LRESULT)GetSysColorBrush(COLOR_WINDOW);
break;
// Draw item
case WM_DRAWITEM:
return DrawItem(wParam, lParam);
break;
// Disable menus by capturing this message
case WM_INITMENU:
break;
// Capture system character key to stop pop up menus and other
// nonsense
case WM_SYSCHAR:
break;
// Char pressed
case WM_CHAR:
CharPressed(wParam, lParam);
break;
// Key pressed
case WM_KEYDOWN:
KeyDown(wParam, lParam);
break;
// Buttons
case WM_COMMAND:
switch (LOWORD(wParam))
{
// Quit
case QUIT_ID:
waveInStop(audio.hwi);
waveInClose(audio.hwi);
PostQuitMessage(0);
break;
}
break;
// Notify
case WM_NOTIFY:
switch (((LPNMHDR)lParam)->code)
{
// Tooltip
case TTN_SHOW:
TooltipShow(wParam, lParam);
break;
case TTN_POP:
TooltipPop(wParam, lParam);
break;
}
break;
// Process other messages.
case WM_DESTROY:
waveInStop(audio.hwi);
waveInClose(audio.hwi);
PostQuitMessage(0);
break;
// Everything else
default:
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
return 0;
}
void MouseMove(HWND hwnd, WPARAM wParam, LPARAM lParam)
{
static float last;
static BOOL move;
// Get points
POINTS points = MAKEPOINTS(lParam);
// Button down
if (wParam & MK_LBUTTON)
{
RECT rect;
// Get bounds
GetClientRect(hwnd, &rect);
int w2 = rect.right / 2;
int h2 = rect.bottom / 2;
// Calculate position relative to centre
int x = points.x - w2;
int y = points.y - h2;
// Calculate angle
float theta = atan2(x, -y);
// First point
if (!move)
move = TRUE;
// More points
else
{
// Difference
float delta = theta - last;
// Allow for crossing origin
if (delta > M_PI)
delta -= 2.0 * M_PI;
if (delta < -M_PI)
delta += 2.0 * M_PI;
// Calculate scale value
scale.v += round(delta * 100.0 / M_PI);
// Enforce limits
if (scale.v < FREQ_MIN)
scale.v = FREQ_MIN;
if (scale.v > FREQ_MAX)
scale.v = FREQ_MAX;
// Update frequency
UpdateFrequency();
}
// Remember angle
last = theta;
}
// Button not down
else
if (move)
move = FALSE;
}
