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Code Issues Releases Wiki Activity

Optimize UpdateLayeredWindow when only alpha is changing

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This commit is contained in:
Birunthan Mohanathas 2013-03-31 12:52:03 +03:00
parent 349988e5dd
commit 0135b81a17
2 changed files with 22 additions and 13 deletions
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34
Library/MeterWindow.cpp
View File

@ -819,7 +819,7 @@ void CMeterWindow::RunBang(BANGCOMMAND bang, const std::vector<std::wstring>& ar
case BANG_SHOW:
m_Hidden = false;
ShowWindow(m_Window, SW_SHOWNOACTIVATE);
UpdateWindow((m_WindowHide == HIDEMODE_FADEOUT) ? 255 : m_AlphaValue, false);
UpdateWindowTransparency((m_WindowHide == HIDEMODE_FADEOUT) ? 255 : m_AlphaValue);
break;
case BANG_HIDE:
@ -889,7 +889,7 @@ void CMeterWindow::RunBang(BANGCOMMAND bang, const std::vector<std::wstring>& ar
m_AlphaValue = CConfigParser::ParseInt(arg.c_str(), 255);
m_AlphaValue = max(m_AlphaValue, 0);
m_AlphaValue = min(m_AlphaValue, 255);
UpdateWindow(m_AlphaValue, false);
UpdateWindowTransparency(m_AlphaValue);
}
break;
@ -2725,17 +2725,14 @@ void CMeterWindow::UpdateWindow(int alpha, bool reset, bool canvasBeginDrawCalle
if (!canvasBeginDrawCalled) m_Canvas->BeginDraw();
HDC dcScreen = GetDC(NULL);
HDC dcMemory = m_Canvas->GetDC();
if (!UpdateLayeredWindow(m_Window, dcScreen, NULL, &szWindow, dcMemory, &ptSrc, 0, &blendPixelFunction, ULW_ALPHA))
if (!UpdateLayeredWindow(m_Window, NULL, NULL, &szWindow, dcMemory, &ptSrc, 0, &blendPixelFunction, ULW_ALPHA))
{
// Retry after resetting WS_EX_LAYERED flag.
RemoveWindowExStyle(WS_EX_LAYERED);
AddWindowExStyle(WS_EX_LAYERED);
UpdateLayeredWindow(m_Window, dcScreen, NULL, &szWindow, dcMemory, &ptSrc, 0, &blendPixelFunction, ULW_ALPHA);
UpdateLayeredWindow(m_Window, NULL, NULL, &szWindow, dcMemory, &ptSrc, 0, &blendPixelFunction, ULW_ALPHA);
}
ReleaseDC(NULL, dcScreen);
m_Canvas->ReleaseDC(dcMemory);
if (!canvasBeginDrawCalled) m_Canvas->EndDraw();
@ -2743,6 +2740,17 @@ void CMeterWindow::UpdateWindow(int alpha, bool reset, bool canvasBeginDrawCalle
m_TransparencyValue = alpha;
}
/*
** Updates the window transparency (using existing contents).
**
*/
void CMeterWindow::UpdateWindowTransparency(int alpha)
{
BLENDFUNCTION blendPixelFunction = {AC_SRC_OVER, 0, alpha, AC_SRC_ALPHA};
UpdateLayeredWindow(m_Window, NULL, NULL, NULL, NULL, NULL, 0, &blendPixelFunction, ULW_ALPHA);
m_TransparencyValue = alpha;
}
/*
** Handles the timers. The METERTIMER updates all the measures
** MOUSETIMER is used to hide/show the window.
@ -2841,7 +2849,7 @@ LRESULT CMeterWindow::OnTimer(UINT uMsg, WPARAM wParam, LPARAM lParam)
}
else
{
UpdateWindow(m_FadeEndValue, false);
UpdateWindowTransparency(m_FadeEndValue);
}
}
else
@ -2853,7 +2861,7 @@ LRESULT CMeterWindow::OnTimer(UINT uMsg, WPARAM wParam, LPARAM lParam)
value = min(value, 255);
value = max(value, 0);
UpdateWindow((int)value, false);
UpdateWindowTransparency((int)value);
}
}
break;
@ -2883,7 +2891,7 @@ void CMeterWindow::FadeWindow(int from, int to)
{
if (m_FadeDuration == 0)
{
UpdateWindow(to, false);
UpdateWindowTransparency(to);
}
if (from == 0)
{
@ -2898,7 +2906,7 @@ void CMeterWindow::FadeWindow(int from, int to)
{
m_FadeStartValue = from;
m_FadeEndValue = to;
UpdateWindow(from, false);
UpdateWindowTransparency(from);
if (from == 0)
{
if (!m_Hidden)
@ -3383,7 +3391,7 @@ LRESULT CMeterWindow::OnCommand(UINT uMsg, WPARAM wParam, LPARAM lParam)
if (wParam >= IDM_SKIN_TRANSPARENCY_0 && wParam <= IDM_SKIN_TRANSPARENCY_90)
{
m_AlphaValue = (int)(255.0 - (wParam - IDM_SKIN_TRANSPARENCY_0) * (230.0 / (IDM_SKIN_TRANSPARENCY_90 - IDM_SKIN_TRANSPARENCY_0)));
UpdateWindow(m_AlphaValue, false);
UpdateWindowTransparency(m_AlphaValue);
WriteOptions(OPTION_ALPHAVALUE);
}
else if (wParam == IDM_SKIN_MONITOR_PRIMARY || wParam >= ID_MONITOR_FIRST && wParam <= ID_MONITOR_LAST)
@ -3556,7 +3564,7 @@ void CMeterWindow::SetSnapEdges(bool b)
void CMeterWindow::SetWindowHide(HIDEMODE hide)
{
m_WindowHide = hide;
UpdateWindow(m_AlphaValue, false);
UpdateWindowTransparency(m_AlphaValue);
WriteOptions(OPTION_HIDEONMOUSEOVER);
}

1
Library/MeterWindow.h
View File

@ -334,6 +334,7 @@ private:
bool UpdateMeter(CMeter* meter, bool& bActiveTransition, bool force);
void Update(bool refresh);
void UpdateWindow(int alpha, bool reset, bool canvasBeginDrawCalled = false);
void UpdateWindowTransparency(int alpha);
void ReadOptions();
void WriteOptions(INT setting = OPTION_ALL);
bool ReadSkin();