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);
}
void MakeList(ref Bitmap bmp, OpenGL gl, double halfW, double halfH, double height)
{
BitmapData bData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadWrite, pixelFormat);
unsafe
{
byte *pData = (byte *)bData.Scan0.ToPointer();
int len = Math.Abs(bData.Stride);
int lenW = len / bytesPerPixel * bytesPerPixel / interlacing;
for (int i = 0; i < bData.Height / interlacing - 1; i++)
{
int i1 = i * interlacing;
int i2 = (i + 1) * interlacing;
double y1 = i1 - halfH;
double y2 = i2 - halfH;
gl.Begin(OpenGL.GL_QUAD_STRIP);
for (int j = 0; j < lenW; j += bytesPerPixel)
{
int j1 = j * interlacing;
double x = j1 / bytesPerPixel - halfW;
byte *p1 = pData + i1 * len + j1;
byte *p2 = pData + i2 * len + j1;
byte r1 = *(p1 + 2);
byte g1 = *(p1 + 1);
byte b1 = *p1;
byte r2 = *(p2 + 2);
byte g2 = *(p2 + 1);
byte b2 = *p2;
double z1 = (ColorTransform.GetBrightness(r1, g1, b1) / 255.0 - 0.5) * height;
double z2 = (ColorTransform.GetBrightness(r2, g2, b2) / 255.0 - 0.5) * height;
if (UseEq && paletteFirst)
{
r1 = paletteEq.GetValue(ColorChannel.Red, r1);
g1 = paletteEq.GetValue(ColorChannel.Green, g1);
b1 = paletteEq.GetValue(ColorChannel.Blue, b1);
r2 = paletteEq.GetValue(ColorChannel.Red, r2);
g2 = paletteEq.GetValue(ColorChannel.Green, g2);
b2 = paletteEq.GetValue(ColorChannel.Blue, b2);
}
int cr1 = ColorTransform.Brightness(r1, g1, b1, brightness);
int cr2 = ColorTransform.Brightness(r2, g2, b2, brightness);
cr1 = ColorTransform.Contrast((byte)(cr1 & 0x0000ff), (byte)((cr1 >> 8) & 0x00ff), (byte)(cr1 >> 16), contrast);
cr2 = ColorTransform.Contrast((byte)(cr2 & 0x0000ff), (byte)((cr2 >> 8) & 0x00ff), (byte)(cr2 >> 16), contrast);
r1 = (byte)(cr1 & 0x0000ff);
g1 = (byte)((cr1 >> 8) & 0x00ff);
b1 = (byte)(cr1 >> 16);
r2 = (byte)(cr2 & 0x0000ff);
g2 = (byte)((cr2 >> 8) & 0x00ff);
b2 = (byte)(cr2 >> 16);
bool bt1 = ColorTransform.BlackTolerance(r1, g1, b1, blackTolerance);
bool bt2 = ColorTransform.BlackTolerance(r2, g2, b2, blackTolerance);
bool wt1 = ColorTransform.WhiteTolerance(r1, g1, b1, whiteTolerance);
bool wt2 = ColorTransform.WhiteTolerance(r2, g2, b2, whiteTolerance);
if (UseEq && !paletteFirst)
{
r1 = paletteEq.GetValue(ColorChannel.Red, r1);
g1 = paletteEq.GetValue(ColorChannel.Green, g1);
b1 = paletteEq.GetValue(ColorChannel.Blue, b1);
r2 = paletteEq.GetValue(ColorChannel.Red, r2);
g2 = paletteEq.GetValue(ColorChannel.Green, g2);
b2 = paletteEq.GetValue(ColorChannel.Blue, b2);
}
gl.Color(r1 / 255.0, g1 / 255.0, b1 / 255.0, bt1 && wt1 ? 1.0 : 0.0);
gl.Vertex(x, bData.Stride > 0 ? y1 : -y1, -z1);
gl.Color(r2 / 255.0, g2 / 255.0, b2 / 255.0, bt2 && wt2 ? 1.0 : 0.0);
gl.Vertex(x, bData.Stride > 0 ? y2 : -y2, -z2);
}
gl.End();
}
}
bmp.UnlockBits(bData);
}
