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Improved drawing performance. Now uses DIBSection bitmap for UpdateLayeredWindow.

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This commit is contained in:
spx 2011-03-23 21:19:55 +00:00
parent a4b24d75ac
commit 0e0eb66cff
2 changed files with 64 additions and 26 deletions
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71
Library/MeterWindow.cpp
View File

@ -57,6 +57,10 @@ extern CRainmeter* Rainmeter;
*/
CMeterWindow::CMeterWindow(const std::wstring& path, const std::wstring& config, const std::wstring& iniFile) : m_SkinPath(path), m_SkinName(config), m_SkinIniFile(iniFile),
m_DoubleBuffer(),
m_DIBSectionBuffer(),
m_DIBSectionBufferPixels(),
m_DIBSectionBufferW(),
m_DIBSectionBufferH(),
m_Background(),
m_BackgroundSize(),
m_Window(),
@ -156,7 +160,8 @@ CMeterWindow::~CMeterWindow()
}
if(m_Background) delete m_Background;
if(m_DoubleBuffer) delete (m_DoubleBuffer);
if(m_DoubleBuffer) delete m_DoubleBuffer;
if(m_DIBSectionBuffer) DeleteObject(m_DIBSectionBuffer);
if(m_Window) DestroyWindow(m_Window);
@ -238,7 +243,7 @@ int CMeterWindow::Initialize(CRainmeter& Rainmeter)
IgnoreAeroPeek();
// Gotta have some kind of buffer during initialization
m_DoubleBuffer = new Bitmap(1, 1, PixelFormat32bppPARGB);
CreateDoubleBuffer(1, 1);
Refresh(true, true);
if (!m_WindowStartHidden)
@ -2281,6 +2286,35 @@ Bitmap* CMeterWindow::GrabDesktop(int x, int y, int w, int h)
return background;
}
/*
** CreateDoubleBuffer
**
** Creates the back buffer bitmap.
**
*/
void CMeterWindow::CreateDoubleBuffer(int cx, int cy)
{
// Create DIBSection bitmap
BITMAPV4HEADER bmiHeader = {sizeof(BITMAPV4HEADER)};
bmiHeader.bV4Width = cx;
bmiHeader.bV4Height = -cy; // top-down DIB
bmiHeader.bV4Planes = 1;
bmiHeader.bV4BitCount = 32;
bmiHeader.bV4V4Compression = BI_BITFIELDS;
bmiHeader.bV4RedMask = 0x00FF0000;
bmiHeader.bV4GreenMask = 0x0000FF00;
bmiHeader.bV4BlueMask = 0x000000FF;
bmiHeader.bV4AlphaMask = 0xFF000000;
m_DIBSectionBuffer = CreateDIBSection(NULL, (BITMAPINFO*)&bmiHeader, DIB_RGB_COLORS, (void**)&m_DIBSectionBufferPixels, NULL, 0);
// Create GDI+ bitmap from DIBSection's pixels
m_DoubleBuffer = new Bitmap(cx, cy, cx * 4, PixelFormat32bppPARGB, (BYTE*)m_DIBSectionBufferPixels);
m_DIBSectionBufferW = cx;
m_DIBSectionBufferH = cy;
}
/*
** CreateRegion
**
@ -2297,6 +2331,8 @@ void CMeterWindow::CreateRegion(bool clear)
{
// Set window region if needed
if(!m_BackgroundName.empty())
{
if (m_WindowW != 0 && m_WindowH != 0)
{
HBITMAP background = NULL;
m_DoubleBuffer->GetHBITMAP(Color(255,0,255), &background);
@ -2309,6 +2345,7 @@ void CMeterWindow::CreateRegion(bool clear)
}
}
}
}
/*
** Redraw
@ -2336,17 +2373,17 @@ void CMeterWindow::Redraw()
cy = 1;
}
BitmapData buf;
if (cx != m_DoubleBuffer->GetWidth() || cy != m_DoubleBuffer->GetHeight() ||
Ok != m_DoubleBuffer->LockBits(&Rect(0, 0, cx, cy), ImageLockModeWrite, PixelFormat32bppPARGB, &buf))
if (cx != m_DIBSectionBufferW || cy != m_DIBSectionBufferH || m_DIBSectionBufferPixels == NULL)
{
if (m_DoubleBuffer) delete m_DoubleBuffer;
m_DoubleBuffer = new Bitmap(cx, cy, PixelFormat32bppPARGB);
if (m_DIBSectionBuffer) DeleteObject(m_DIBSectionBuffer);
m_DIBSectionBufferPixels = NULL;
CreateDoubleBuffer(cx, cy);
}
else
{
memset(buf.Scan0, 0, buf.Stride * cy); // assume that the bitmap is top-down
m_DoubleBuffer->UnlockBits(&buf);
memset(m_DIBSectionBufferPixels, 0, cx * cy * 4);
}
}
@ -2652,15 +2689,12 @@ void CMeterWindow::UpdateTransparency(int alpha, bool reset)
HDC dcScreen = GetDC(0);
HDC dcMemory = CreateCompatibleDC(dcScreen);
SelectObject(dcMemory, m_DIBSectionBuffer);
HBITMAP dbBitmap;
m_DoubleBuffer->GetHBITMAP(Color(0, 0, 0, 0), &dbBitmap);
HBITMAP oldBitmap = (HBITMAP)SelectObject(dcMemory, dbBitmap);
UpdateLayeredWindow(m_Window, dcScreen, &ptWindowScreenPosition, &szWindow, dcMemory, &ptSrc, 0, &blendPixelFunction, ULW_ALPHA);
ReleaseDC(0, dcScreen);
SelectObject(dcMemory, oldBitmap);
DeleteDC(dcMemory);
DeleteObject(dbBitmap);
m_TransparencyValue = alpha;
}
@ -2679,6 +2713,7 @@ void CMeterWindow::UpdateTransparency(int alpha, bool reset)
** OnPaint
**
** Repaints the window. This does not cause update of the measures.
** This handler is called if NativeTransparency is false.
**
*/
LRESULT CMeterWindow::OnPaint(UINT uMsg, WPARAM wParam, LPARAM lParam)
@ -3001,14 +3036,10 @@ bool CMeterWindow::HitTest(int x, int y)
if (x >= 0 && y >= 0 && x < m_WindowW && y < m_WindowH)
{
// Check transparent pixels
if (m_DoubleBuffer)
if (m_DIBSectionBufferPixels)
{
Color color;
Status status = m_DoubleBuffer->GetPixel(x, y, &color);
if (status != Ok || color.GetA() != 0)
{
return true;
}
DWORD pixel = m_DIBSectionBufferPixels[y * m_WindowW + x]; // top-down DIB
return ((pixel & 0xFF000000) != 0);
}
else
{

7
Library/MeterWindow.h
View File

@ -292,9 +292,16 @@ private:
void SetWindowPositionVariables(int x, int y);
void SetWindowSizeVariables(int w, int h);
void CreateDoubleBuffer(int cx, int cy);
CConfigParser m_Parser;
Gdiplus::Bitmap* m_DoubleBuffer;
HBITMAP m_DIBSectionBuffer;
LPDWORD m_DIBSectionBufferPixels;
int m_DIBSectionBufferW;
int m_DIBSectionBufferH;
Gdiplus::Bitmap* m_Background; // The background bitmap
SIZE m_BackgroundSize;