protected override IntPtr CreatePixmapHandle(int width, int height, BitCount bitsperpixel)
{
//Orientation = orient;
PixmapOrientation orient = PixmapOrientation.BottomToTop;
// Create a bitmap compatible with the screen
fBitmapInfo = new BITMAPINFO();
fBitmapInfo.Init();
m_BytesPerRow = GDIPixmap.GetAlignedRowStride(Width, bitsperpixel, Alignment);
fBitmapInfo.bmiHeader.biWidth = Width;
if (PixmapOrientation.TopToBottom == orient)
fBitmapInfo.bmiHeader.biHeight = -Height; // Indicates a top-to-bottom orientation
else
fBitmapInfo.bmiHeader.biHeight = Height;
fBitmapInfo.bmiHeader.biPlanes = 1;
fBitmapInfo.bmiHeader.biBitCount = (ushort)bitsperpixel;
fBitmapInfo.bmiHeader.biSizeImage = (uint)(m_BytesPerRow * Height);
fBitmapInfo.bmiHeader.biClrImportant = 0;
fBitmapInfo.bmiHeader.biClrUsed = 0;
fBitmapInfo.bmiHeader.biCompression = GDI32.BI_RGB;
//fBitmapInfo.bmiColors = IntPtr.Zero;
m_pixelPointer = IntPtr.Zero;
IntPtr bitmapHandle = GDI32.CreateDIBSection(GDIContext.CreateForDefaultDisplay(),
ref fBitmapInfo, GDI32.DIB_RGB_COLORS, ref m_pixelPointer, IntPtr.Zero, 0);
return bitmapHandle;
}
public static BITMAPINFO ToBitmapInfo(this PixelRectangleInfo pixmap)
{
BITMAPINFO bmi = new BITMAPINFO();
bmi.Init();
bmi.bmiHeader.biBitCount = (ushort)pixmap.BitsPerPixel;
bmi.bmiHeader.biWidth = pixmap.Width;
if (pixmap.Orientation == PixmapOrientation.TopToBottom)
bmi.bmiHeader.biHeight = -pixmap.Height;
else
bmi.bmiHeader.biHeight = pixmap.Height;
bmi.bmiHeader.biSizeImage = (uint)pixmap.GetImageSize();
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biClrImportant = 0;
bmi.bmiHeader.biClrUsed = 0;
bmi.bmiHeader.biCompression = 0;
return bmi;
}
public PixelBuffer(int width, int height)
{
// Create a MemoryDC to hold the bitmap. Use IntPtr.Zero
// to create a device context that is compatible with the screen.
fMemoryDC = GDI32.CreateCompatibleDC(IntPtr.Zero);
// Create a bitmap compatible with the screen
fBitmapInfo = new BITMAPINFO();
fBitmapInfo.Init();
fBitmapInfo.bmiHeader.biWidth = width;
fBitmapInfo.bmiHeader.biHeight = -height;
fBitmapInfo.bmiHeader.biPlanes = 1;
fBitmapInfo.bmiHeader.biBitCount = 32;
fBitmapInfo.bmiHeader.biClrImportant = 0;
fBitmapInfo.bmiHeader.biClrUsed = 0;
fBitmapInfo.bmiHeader.biCompression = GDI32.BI_RGB;
fBitmapInfo.bmiColors = IntPtr.Zero;
fBitmapHandle = GDI32.CreateDIBSection(User32.GetDC(IntPtr.Zero),
ref fBitmapInfo, GDI32.DIB_RGB_COLORS, ref fBits, IntPtr.Zero, 0);
fPixelData = new PixelData(width, height, 32, width * 4, fBits);
// Get the bitmap structure back out so we can
// get our hands on the created pointer and whatnot
//GDI32.GetBitmap(fBitmapHandle, ref fBitmapStructure);
//fBits = fBitmapStructure.bmBits;
// Select the bitmap into the memoryDC
fOldBitmapHandle = GDI32.SelectObject(fMemoryDC, fBitmapHandle);
fAlpha = 255;
}
void ConfigureVideoFormat()
{
fBitmapInfo = new BITMAPINFO();
fBitmapInfo.Init();
fBitmapInfo.bmiHeader = new BITMAPINFOHEADER();
fBitmapInfo.bmiHeader.Init();
// Get the current format information
int formatSize = capGetVideoFormatSize();
capGetVideoFormat(ref fBitmapInfo);
PrintCompressionType(fBitmapInfo.bmiHeader.biCompression);
// Fill in the things we want to change
fBitmapInfo.bmiHeader.biWidth = Width;
fBitmapInfo.bmiHeader.biHeight = Height;
fBitmapInfo.bmiHeader.biPlanes = 1;
fBitmapInfo.bmiHeader.biBitCount = 24; // 24 bits per frame - RGB
fBitmapInfo.bmiHeader.biCompression = GDI32.BI_RGB;
// Try to set the video format
bool setSuccess = capSetVideoFormat(ref fBitmapInfo);
// Get the settings again, and set the width
// and height based on what was actually set
capGetVideoFormat(ref fBitmapInfo);
Width = fBitmapInfo.bmiHeader.biWidth;
Height = fBitmapInfo.bmiHeader.biHeight;
}
public virtual int PixelBlt(Rectangle srcRect, Rectangle dstRect, IntPtr pixelPtr, BitCount bitsPerPixel)
{
BITMAPINFO bmInfo = new BITMAPINFO();
bmInfo.Init();
bmInfo.bmiHeader.biWidth = srcRect.Width;
bmInfo.bmiHeader.biHeight = srcRect.Height;
bmInfo.bmiHeader.biPlanes = 1;
bmInfo.bmiHeader.biBitCount = (ushort)bitsPerPixel;
bmInfo.bmiHeader.biClrImportant = 0;
bmInfo.bmiHeader.biClrUsed = 0;
bmInfo.bmiHeader.biCompression = GDI32.BI_RGB;
//bmInfo.bmiColors = IntPtr.Zero;
int rowsWritten = GDI32.StretchDIBits(this,
dstRect.X, dstRect.Y, dstRect.Width, dstRect.Height,
srcRect.X, srcRect.Y, srcRect.Width, srcRect.Height,
pixelPtr,
ref bmInfo,
GDI32.DIB_RGB_COLORS,
(uint)TernaryRasterOps.SRCCOPY);
return rowsWritten;
}
// Generalized bit block transfer
// Can transfer from any device context to this one.
public virtual void PixBlt(IPixelArray pixmap, int x, int y)
{
if (null == pixmap)
return;
BITMAPINFO bmi = new BITMAPINFO();
bmi.Init();
bmi.bmiHeader.biBitCount = (ushort)pixmap.BitsPerPixel;
bmi.bmiHeader.biWidth = pixmap.Width;
if (pixmap.Orientation == PixmapOrientation.TopToBottom)
bmi.bmiHeader.biHeight = -pixmap.Height;
else
bmi.bmiHeader.biHeight = pixmap.Height;
bmi.bmiHeader.biSizeImage = (uint)(pixmap.BytesPerRow * pixmap.Height);
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biClrImportant = 0;
bmi.bmiHeader.biClrUsed = 0;
bmi.bmiHeader.biCompression = 0;
int result = GDI32.StretchDIBits(DeviceContext, x, y, pixmap.Width, pixmap.Height, 0, 0, pixmap.Width, pixmap.Height, pixmap.Pixels,
ref bmi, GDI32.DIB_RGB_COLORS, (uint)TernaryRasterOps.SRCCOPY);
//Console.WriteLine("Result: {0}", result);
}