public void DrawBitmap(bool needOrigImg = false)
{
if (imagePreviewControl1.Img is null)
{
needOrigImg = true;
}
BitmapTransform bt = new BitmapTransform();
bt.bmp = needOrigImg ? null : imagePreviewControl1.Img;
bt.bmpOrig = bmpOrig;
bt.sz = imagePreviewControl1.Size;
bt.usePalette = false;
TransformBitmap(this, bt);
if (needOrigImg)
{
imagePreviewControl1.Img = bt.bmp;
bmpOrig = bt.bmpOrig;
}
imagePreviewControl1.Draw(null, needOrigImg);
}
public void imagePreview_BitmapTransform(object sender, BitmapTransform bt)
{
if (bt.bmp is null)
{
float ratio = (float)bmp.Width / bmp.Height;
if (ratio < 1)
{
bt.sz.Width = (int)(bt.sz.Height * ratio);
}
else
{
bt.sz.Height = (int)(bt.sz.Width / ratio);
}
bt.bmp = new Bitmap(bt.sz.Width, bt.sz.Height, pixelFormat);
using (Graphics gr = Graphics.FromImage(bt.bmp))
gr.DrawImage(bmp, 0, 0, bt.sz.Width, bt.sz.Height);
bt.bmpOrig = new Bitmap(bt.sz.Width, bt.sz.Height, Scene.pixelFormat);
using (Graphics gr = Graphics.FromImage(bt.bmpOrig))
gr.DrawImage(bt.bmp, 0, 0, bt.sz.Width, bt.sz.Height);
}
BitmapData bDataOrig = bt.bmpOrig.LockBits(new Rectangle(0, 0, bt.bmpOrig.Width, bt.bmpOrig.Height), ImageLockMode.ReadOnly, pixelFormat);
BitmapData bData = bt.bmp.LockBits(new Rectangle(0, 0, bt.bmp.Width, bt.bmp.Height), ImageLockMode.ReadWrite, pixelFormat);
unsafe
{
byte *pDataOrig = (byte *)bDataOrig.Scan0.ToPointer();
byte *pData = (byte *)bData.Scan0.ToPointer();
int len = Math.Abs(bDataOrig.Stride);
int lenW = len / bytesPerPixel * bytesPerPixel;
for (int i = 0; i < bDataOrig.Height; i++)
{
for (int j = 0; j < lenW; j += bytesPerPixel)
{
byte *pOrig = pDataOrig + i * len + j;
byte *p = pData + i * len + j;
byte r = *(pOrig + 2);
byte g = *(pOrig + 1);
byte b = *pOrig;
if (UseEq && paletteFirst)
{
r = paletteEq.GetValue(ColorChannel.Red, r);
g = paletteEq.GetValue(ColorChannel.Green, g);
b = paletteEq.GetValue(ColorChannel.Blue, b);
}
int cr = ColorTransform.Brightness(r, g, b, brightness);
cr = ColorTransform.Contrast((byte)(cr & 0x0000ff), (byte)((cr >> 8) & 0x00ff), (byte)(cr >> 16), contrast);
r = (byte)(cr & 0x0000ff);
g = (byte)((cr >> 8) & 0x00ff);
b = (byte)(cr >> 16);
bool transparent = false;
if (!ColorTransform.BlackTolerance(r, g, b, blackTolerance) || !ColorTransform.WhiteTolerance(r, g, b, whiteTolerance))
{
r = 0;
g = 0;
b = 0;
transparent = true;
}
if (!transparent && UseEq && !paletteFirst)
{
r = paletteEq.GetValue(ColorChannel.Red, r);
g = paletteEq.GetValue(ColorChannel.Green, g);
b = paletteEq.GetValue(ColorChannel.Blue, b);
}
*(p + 2) = r;
*(p + 1) = g;
*(p + 0) = b;
}
}
}
bt.bmp.UnlockBits(bData);
bt.bmpOrig.UnlockBits(bDataOrig);
}
