public void ToBitmap(System.Drawing.Bitmap bmp)
{
var data = bmp.LockBits(new System.Drawing.Rectangle(0, 0, bmp.Width, bmp.Height), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
unsafe
{
byte *firstPixel = (byte *)data.Scan0;
var width = bmp.Width;
var height = bmp.Height;
for (var y = 0; y < height; ++y)
{
RGBColor *pixel = (RGBColor *)(firstPixel + y * data.Stride);
int pos = y * width;
fixed(RGBColor *first = &m_components[pos])
fixed(RGBColor * last = &m_components[pos + width - 1])
{
for (RGBColor *color = first; color <= last; color++)
{
*pixel = *color;
pixel->a = 255;
pixel++;
}
}
}
}
bmp.UnlockBits(data);
}
public void CopyPixel(int destX, int destY, int srcX, int srcY, RenderBitmap src, float lightAmt)
{
int srcIndex = (srcY * src.m_width + srcX);
unsafe
{
RGBColor *rgbColor = (RGBColor *)((byte *)(m_data.Scan0 + m_data.Stride * destY + destX * 4));
fixed(RGBColor *color = &src.m_components[srcIndex])
{
rgbColor->r = (byte)(color->r * lightAmt);
rgbColor->g = (byte)(color->g * lightAmt);
rgbColor->b = (byte)(color->b * lightAmt);
}
}
}
public void Clear(byte shade)
{
unsafe
{
byte *firstPixel = (byte *)m_data.Scan0;
var width = m_bitmap.Width;
var height = m_bitmap.Height;
int iColor = unchecked ((shade << 24) | (shade << 16) | (shade << 8) | shade);
int stride = m_data.Stride;
for (var y = 0; y < height; ++y)
{
RGBColor *first = (RGBColor *)(firstPixel + y * stride);
RGBColor *last = (RGBColor *)(first + width);
for (RGBColor *color = first; color <= last; ++color)
{
*color = *(RGBColor *)&iColor;
}
}
}
}
