public override void SaveImage(MemBitmap bitmap, Stream output, OutputImageFormat outputFormat, object saveParameters)
{
//save img to
using (System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(bitmap.Width, bitmap.Height, System.Drawing.Imaging.PixelFormat.Format32bppArgb))
{
var bmpdata = bmp.LockBits(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height),
System.Drawing.Imaging.ImageLockMode.WriteOnly,
System.Drawing.Imaging.PixelFormat.Format32bppArgb);
unsafe
{
byte *ptr = (byte *)MemBitmap.GetBufferPtr(bitmap).Ptr;
MemMx.memcpy((byte *)bmpdata.Scan0, ptr, bmpdata.Stride * bmp.Height);
}
bmp.UnlockBits(bmpdata);
//save to stream
System.Drawing.Imaging.ImageFormat format = null;
switch (outputFormat)
{
case OutputImageFormat.Default:
throw new NotSupportedException();
case OutputImageFormat.Jpeg:
format = System.Drawing.Imaging.ImageFormat.Jpeg;
break;
case OutputImageFormat.Png:
format = System.Drawing.Imaging.ImageFormat.Png;
break;
}
bmp.Save(output, format);
}
}
public override MemBitmap LoadImage(Stream input)
{
using (System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(input))
{
var bmpData2 = bmp.LockBits(new System.Drawing.Rectangle(0, 0, bmp.Width, bmp.Height),
System.Drawing.Imaging.ImageLockMode.ReadOnly,
System.Drawing.Imaging.PixelFormat.Format32bppArgb);
MemBitmap memBitmap = new MemBitmap(bmp.Width, bmp.Height);
unsafe
{
byte *dst = (byte *)MemBitmap.GetBufferPtr(memBitmap).Ptr;
MemMx.memcpy(dst, (byte *)bmpData2.Scan0, bmpData2.Stride * bmpData2.Height);
}
return(memBitmap);
}
}
/// <summary>
/// copy from mem image direct to hBmpScan0
/// </summary>
/// <param name="srcMemBmp"></param>
/// <param name="dstHBmpScan0"></param>
public static void CopyToWindowsBitmapSameSize(
MemBitmap srcMemBmp,
IntPtr dstHBmpScan0)
{
//1st, fast
//byte[] rawBuffer = ActualImage.GetBuffer(actualImage);
TempMemPtr memPtr = MemBitmap.GetBufferPtr(srcMemBmp);
unsafe
{
MemMx.memcpy((byte *)dstHBmpScan0, (byte *)memPtr.Ptr, srcMemBmp.Stride * srcMemBmp.Height);
}
//System.Runtime.InteropServices.Marshal.Copy(rawBuffer, 0,
// hBmpScan0, rawBuffer.Length);
memPtr.Dispose();
}
/////////////////////////////////////////////////////////////////////////////////////
public static void CopyToGdiPlusBitmapSameSizeNotFlip(
MemBitmap srcMemBmp,
Bitmap dstBitmap)
{
//agg store image buffer head-down
//when copy to window bmp we here to flip
//style1: copy row by row *** (fastest)***
{
//System.GC.Collect();
//System.Diagnostics.Stopwatch sss = new System.Diagnostics.Stopwatch();
//sss.Start();
//for (int i = 0; i < 1000; ++i)
//{
int h = dstBitmap.Height;
int w = dstBitmap.Width;
BitmapData bitmapData1 = dstBitmap.LockBits(
new Rectangle(0, 0,
w,
h),
System.Drawing.Imaging.ImageLockMode.ReadWrite,
dstBitmap.PixelFormat);
IntPtr scan0 = bitmapData1.Scan0;
int stride = bitmapData1.Stride;
//byte[] srcBuffer = ActualImage.GetBuffer(actualImage);
TempMemPtr srcBufferPtr = MemBitmap.GetBufferPtr(srcMemBmp);
unsafe
{
//fixed (byte* bufferH = &srcBuffer[0])
byte *srcBufferH = (byte *)srcBufferPtr.Ptr;
{
byte *target = (byte *)scan0;
int startRowAt = 0;
for (int y = 0; y < h; ++y)
{
//byte* src = bufferH + ((y - 1) * stride);
byte *src = srcBufferH + startRowAt;
//System.Runtime.InteropServices.Marshal.Copy(
// srcBuffer,//src
// startRowAt,
// (IntPtr)target,
// stride);
MemMx.memcpy(target, src, stride);
startRowAt += stride;
target += stride;
}
}
}
srcBufferPtr.Dispose();
dstBitmap.UnlockBits(bitmapData1);
//}
//sss.Stop();
//long ms = sss.ElapsedMilliseconds;
}
//-----------------------------------
//style2: copy all, then flip again
//{
// System.GC.Collect();
// System.Diagnostics.Stopwatch sss = new System.Diagnostics.Stopwatch();
// sss.Start();
// for (int i = 0; i < 1000; ++i)
// {
// byte[] rawBuffer = ActualImage.GetBuffer(actualImage);
// var bmpdata = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height),
// System.Drawing.Imaging.ImageLockMode.ReadOnly,
// bitmap.PixelFormat);
// System.Runtime.InteropServices.Marshal.Copy(rawBuffer, 0,
// bmpdata.Scan0, rawBuffer.Length);
// bitmap.UnlockBits(bmpdata);
// bitmap.RotateFlip(RotateFlipType.RotateNoneFlipY);
// }
// sss.Stop();
// long ms = sss.ElapsedMilliseconds;
//}
//-----------------------------------
//-----------------------------------
//style3: copy row by row +
//{
// System.GC.Collect();
// System.Diagnostics.Stopwatch sss = new System.Diagnostics.Stopwatch();
// sss.Start();
// for (int i = 0; i < 1000; ++i)
// {
// int h = bitmap.Height;
// int w = bitmap.Width;
// BitmapData bitmapData1 = bitmap.LockBits(
// new Rectangle(0, 0,
// w,
// h),
// System.Drawing.Imaging.ImageLockMode.ReadWrite,
// bitmap.PixelFormat);
// IntPtr scan0 = bitmapData1.Scan0;
// int stride = bitmapData1.Stride;
// byte[] buffer = ActualImage.GetBuffer(actualImage);
// unsafe
// {
// fixed (byte* bufferH = &buffer[0])
// {
// byte* target = (byte*)scan0;
// for (int y = h; y > 0; --y)
// {
// byte* src = bufferH + ((y - 1) * stride);
// for (int n = stride - 1; n >= 0; --n)
// {
// *target = *src;
// target++;
// src++;
// }
// }
// }
// }
// bitmap.UnlockBits(bitmapData1);
// }
// sss.Stop();
// long ms = sss.ElapsedMilliseconds;
//}
}
