/*
* GraphicsReleaseCapture: Release mouse capture, if main window has it.
* Return True iff main window had mouse capture.
*/
Bool GraphicsReleaseCapture(void)
{
if (!capture)
return False;
ReleaseCapture();
capture = False;
GameWindowSetCursor();
return True;
}
/*
* InventoryReleaseCapture: Release mouse capture, if inventory has it.
* Return True iff inventory had mouse capture.
*/
Bool InventoryReleaseCapture(void)
{
if (!capture)
return False;
ReleaseCapture();
capture = False;
GameWindowSetCursor();
return True;
}
/*
* Functions should call RedrawAll if they need the room to be redrawn.
* This sets a flag, and the next time an opportunity arises, the room
* is redrawn via a call to RedrawForce.
*/
void RedrawForce(void)
{
HDC hdc;
static DWORD lastEndFrame = 0;
DWORD endFrame, startFrame;
int totalFrameTime, oldMode;
char buffer[32];
if (GameGetState() == GAME_INVALID || /*!need_redraw ||*/ IsIconic(hMain) ||
view.cx == 0 || view.cy == 0 || current_room.rows == 0 || current_room.cols == 0)
{
need_redraw = False;
return;
}
timeBeginPeriod(1);
startFrame = timeGetTime();
/* REVIEW: Clearing flag before draw phase allows draw phase to set flag.
* This is useful in rare circumstances when an effect should
* last only one frame, even if animation is off.
*/
need_redraw = False;
hdc = GetDC(hMain);
DrawRoom(hdc, view.x, view.y, ¤t_room, map);
endFrame = timeGetTime();
msDrawFrame = (int)(endFrame - startFrame);
totalFrameTime = (int)(endFrame - lastEndFrame);
// if totalFrameTime is less than one, clamp to 1 so we don't divide by 0 or get negative fps
if (1 > totalFrameTime)
totalFrameTime = 1;
fps = 1000 / (int)totalFrameTime;
if (config.maxFPS)
{
if (fps > config.maxFPS)
{
int msSleep = (1000 / config.maxFPS) - totalFrameTime;
Sleep(msSleep);
}
}
lastEndFrame = endFrame;
timeEndPeriod(1);
if (config.showFPS)
{
RECT rc,lagBox;
wsprintf(buffer, "FPS=%d (%dms) ", fps, msDrawFrame);
ZeroMemory(&rc,sizeof(rc));
rc.bottom = DrawText(hdc,buffer,-1,&rc,DT_SINGLELINE|DT_CALCRECT);
Lagbox_GetRect(&lagBox);
OffsetRect(&rc,lagBox.right + TOOLBAR_SEPARATOR_WIDTH,lagBox.top);
DrawWindowBackground(hdc, &rc, rc.left, rc.top);
oldMode = SetBkMode(hdc,TRANSPARENT);
DrawText(hdc,buffer,-1,&rc,DT_SINGLELINE);
SetBkMode(hdc,oldMode);
GdiFlush();
}
ReleaseDC(hMain, hdc);
GameWindowSetCursor(); // We may have moved; reset cursor
}
