void LoadTextureFromPng()
{
using (UIImage img = UIImage.FromFile("NeHe.png"))
{
int width = img.CGImage.Width;
int height = img.CGImage.Height;
using (MonoTouch.CoreGraphics.CGColorSpace colorSpaceRef = MonoTouch.CoreGraphics.CGColorSpace.CreateDeviceRGB())
{
IntPtr imageData = System.Runtime.InteropServices.Marshal.AllocCoTaskMem(height * width * 4);
try
{
using (MonoTouch.CoreGraphics.CGBitmapContext context = new MonoTouch.CoreGraphics.CGBitmapContext(
imageData, width, height, 8, 4 * width, colorSpaceRef, MonoTouch.CoreGraphics.CGBitmapFlags.ByteOrder32Big |
MonoTouch.CoreGraphics.CGBitmapFlags.PremultipliedLast))
{
colorSpaceRef.Dispose();
context.ClearRect(new System.Drawing.RectangleF(0.0f, 0.0f, (float)width, (float)height));
context.TranslateCTM(0, 0);
context.DrawImage(new System.Drawing.RectangleF(0.0f, 0.0f, (float)width, (float)height), img.CGImage);
GL1.TexImage2D(All1.Texture2D, 0, (int)All1.Rgba, width, height, 0, All1.Rgba, All1.UnsignedByte, imageData);
}
}
finally
{
System.Runtime.InteropServices.Marshal.FreeCoTaskMem(imageData);
}
}
}
}
public BitmapSource RenderImageSource(ILUT lut)
{
var img = new MonoTouch.CoreGraphics.CGBitmapContext(IntPtr.Zero, OriginalWidth, OriginalHeight, 8, 4 * OriginalWidth,
MonoTouch.CoreGraphics.CGColorSpace.CreateDeviceRGB(),
MonoTouch.CoreGraphics.CGImageAlphaInfo.PremultipliedFirst);
for (var i = 0; i < _layers.Count; ++i)
{
var g = _layers[i];
var layer = _layers[i].RenderImageSource(i == 0 ? lut : null);
if (layer != null)
{
var rect = new System.Drawing.RectangleF(g.ScaledOffsetX, g.ScaledOffsetY, g.ScaledWidth, g.ScaledHeight);
img.DrawImage(rect, layer);
}
}
return(img.ToImage());
}
void LoadTextureFromPng()
{
using (UIImage img = UIImage.FromFile ("Crate.png"))
{
int width = img.CGImage.Width;
int height = img.CGImage.Height;
using (MonoTouch.CoreGraphics.CGColorSpace colorSpaceRef = MonoTouch.CoreGraphics.CGColorSpace.CreateDeviceRGB ())
{
IntPtr imageData = System.Runtime.InteropServices.Marshal.AllocCoTaskMem (height * width * 4);
try
{
using (MonoTouch.CoreGraphics.CGBitmapContext context = new MonoTouch.CoreGraphics.CGBitmapContext (
imageData, width, height, 8, 4 * width, colorSpaceRef, MonoTouch.CoreGraphics.CGBitmapFlags.ByteOrder32Big |
MonoTouch.CoreGraphics.CGBitmapFlags.PremultipliedLast))
{
colorSpaceRef.Dispose ();
context.ClearRect (new System.Drawing.RectangleF (0.0f, 0.0f, (float)width, (float)height));
context.TranslateCTM (0, 0);
context.DrawImage (new System.Drawing.RectangleF (0.0f, 0.0f, (float)width, (float)height), img.CGImage);
GL.BindTexture (All.Texture2D, texture[0]);
GL.TexParameter (All.Texture2D, All.TextureMagFilter, (int)All.Nearest);
GL.TexParameter (All.Texture2D, All.TextureMinFilter, (int)All.Nearest);
GL1.TexImage2D (All1.Texture2D, 0, (int)All1.Rgba, width, height, 0, All1.Rgba, All1.UnsignedByte, imageData);
GL.BindTexture (All.Texture2D, texture[1]);
GL.TexParameter (All.Texture2D, All.TextureMagFilter, (int)All.Linear);
GL.TexParameter (All.Texture2D, All.TextureMinFilter, (int)All.Linear);
GL1.TexImage2D (All1.Texture2D, 0, (int)All1.Rgba, width, height, 0, All1.Rgba, All1.UnsignedByte, imageData);
GL.BindTexture (All.Texture2D, texture[2]);
GL1.TexParameter (All1.Texture2D, All1.GenerateMipmap, 1);
GL.TexParameter (All.Texture2D, All.TextureMagFilter, (int)All.Linear);
GL.TexParameter (All.Texture2D, All.TextureMinFilter, (int)All.LinearMipmapNearest);
GL1.TexImage2D (All1.Texture2D, 0, (int)All1.Rgba, width, height, 0, All1.Rgba, All1.UnsignedByte, imageData);
}
}
finally
{
System.Runtime.InteropServices.Marshal.FreeCoTaskMem (imageData);
}
}
}
}
public BitmapSource RenderImageSource(ILUT lut)
{
var img = new MonoTouch.CoreGraphics.CGBitmapContext(IntPtr.Zero, OriginalWidth, OriginalHeight, 8, 4 * OriginalWidth,
MonoTouch.CoreGraphics.CGColorSpace.CreateDeviceRGB(),
MonoTouch.CoreGraphics.CGImageAlphaInfo.PremultipliedFirst);
for (var i = 0; i < _layers.Count; ++i)
{
var g = _layers[i];
var layer = _layers[i].RenderImageSource(i == 0 ? lut : null);
if (layer != null)
{
var rect = new System.Drawing.RectangleF(g.ScaledOffsetX, g.ScaledOffsetY, g.ScaledWidth, g.ScaledHeight);
img.DrawImage(rect, layer);
}
}
return img.ToImage();
}
