public void DrawGlyphImageWithSubPixelRenderingTechnique(
GLBitmap bmp,
ref PixelFarm.Drawing.Rectangle r,
float targetLeft,
float targetTop,
float scale)
{
if (bmp.IsBigEndianPixel)
{
throw new NotSupportedException();
}
else
{
textureSubPixRendering.LoadGLBitmap(bmp);
textureSubPixRendering.IsBigEndian = bmp.IsBigEndianPixel;
textureSubPixRendering.SetColor(this.FontFillColor);
textureSubPixRendering.SetIntensity(1f);
//-------------------------
//draw a serie of image***
//-------------------------
//TODO: review performance here ***
//1. B , cyan result
GL.ColorMask(false, false, true, false);
textureSubPixRendering.SetCompo(0);
textureSubPixRendering.DrawSubImage(r.Left, r.Top, r.Width, r.Height, targetLeft, targetTop);
//float subpixel_shift = 1 / 9f;
//textureSubPixRendering.DrawSubImage(r.Left, r.Top, r.Width, r.Height, targetLeft - subpixel_shift, targetTop); //TODO: review this option
//---------------------------------------------------
//2. G , magenta result
GL.ColorMask(false, true, false, false);
textureSubPixRendering.SetCompo(1);
textureSubPixRendering.DrawSubImage(r.Left, r.Top, r.Width, r.Height, targetLeft, targetTop);
//textureSubPixRendering.DrawSubImage(r.Left, r.Top, r.Width, r.Height, targetLeft, targetTop); //TODO: review this option
//1. R , yellow result
textureSubPixRendering.SetCompo(2);
GL.ColorMask(true, false, false, false);//
textureSubPixRendering.DrawSubImage(r.Left, r.Top, r.Width, r.Height, targetLeft, targetTop);
//textureSubPixRendering.DrawSubImage(r.Left, r.Top, r.Width, r.Height, targetLeft + subpixel_shift, targetTop); //TODO: review this option
//enable all color component
GL.ColorMask(true, true, true, true);
}
}
public void DrawGlyphImageWithSubPixelRenderingTechnique(
ref PixelFarm.Drawing.Rectangle srcRect,
float targetLeft,
float targetTop,
float scale)
{
//TODO: review performance here ***
//1. B , cyan result
GL.ColorMask(false, false, true, false);
textureSubPixRendering.SetCompo(0);
textureSubPixRendering.DrawSubImage(srcRect.Left, srcRect.Top, srcRect.Width, srcRect.Height, targetLeft, targetTop);
//float subpixel_shift = 1 / 9f;
//textureSubPixRendering.DrawSubImage(r.Left, r.Top, r.Width, r.Height, targetLeft - subpixel_shift, targetTop); //TODO: review this option
//---------------------------------------------------
//2. G , magenta result
GL.ColorMask(false, true, false, false);
textureSubPixRendering.SetCompo(1);
textureSubPixRendering.DrawSubImage(srcRect.Left, srcRect.Top, srcRect.Width, srcRect.Height, targetLeft, targetTop);
//textureSubPixRendering.DrawSubImage(r.Left, r.Top, r.Width, r.Height, targetLeft, targetTop); //TODO: review this option
//1. R , yellow result
textureSubPixRendering.SetCompo(2);
GL.ColorMask(true, false, false, false);//
textureSubPixRendering.DrawSubImage(srcRect.Left, srcRect.Top, srcRect.Width, srcRect.Height, targetLeft, targetTop);
//textureSubPixRendering.DrawSubImage(r.Left, r.Top, r.Width, r.Height, targetLeft + subpixel_shift, targetTop); //TODO: review this option
//enable all color component
GL.ColorMask(true, true, true, true);
}