public static Texture1D LoadFromBytes(GraphicsContext graphics, byte[] bytes, int length, TextureParams parameters)
{
if (graphics == null)
throw new ArgumentNullException("graphics");
if (bytes == null)
throw new ArgumentNullException("bytes");
Texture1D texture = new Texture1D(graphics);
Texture.Initialize(texture, graphics, GLContext.Texture1D, bytes, parameters);
graphics.GL.TexImage1D(
GLContext.Texture1D,
0,
(int)GLContext.Rgba8,
length,
0,
GLContext.Rgba,
(int)GLContext.UnsignedByte,
bytes);
texture.Length = length;
return texture;
}
public static Texture2D LoadFromBytes(GraphicsContext graphics, byte[] bytes, int width, int height, TextureParams parameters)
{
if (graphics == null)
throw new ArgumentNullException("graphics");
if (bytes == null)
throw new ArgumentNullException("bytes");
Texture2D texture = new Texture2D(graphics);
Texture.Initialize(texture, graphics, GLContext.Texture2D, bytes, parameters);
graphics.GL.TexImage2D(
GLContext.Texture2D,
0,
(int)GLContext.Rgba8,
width,
height,
0,
GLContext.Rgba,
(int)GLContext.UnsignedByte,
bytes);
texture.Width = width;
texture.Height = height;
return texture;
}
public static Texture1D LoadFromFile(GraphicsContext graphics, string fileName, TextureParams parameters)
{
if (graphics == null)
throw new ArgumentNullException("graphics");
if (fileName == null)
throw new ArgumentNullException("fileName");
using (FileStream file = new FileStream(fileName, FileMode.Open, FileAccess.Read))
return LoadFromStream(graphics, file, parameters);
}
public static Texture1D LoadFromStream(GraphicsContext graphics, Stream stream, TextureParams parameters)
{
if (graphics == null)
throw new ArgumentNullException("graphics");
if (stream == null)
throw new ArgumentNullException("stream");
using (Bitmap bitmap = (Bitmap)Bitmap.FromStream(stream))
{
byte[] bytes = BitmapHelper.GetBytes(bitmap);
return LoadFromBytes(graphics, bytes, bitmap.Width * bitmap.Height, parameters);
}
}
public static Texture LoadFromBytes(GraphicsContext graphics, byte[] bytes, int width, int height, TextureParams parameters)
{
if (graphics == null)
throw new ArgumentNullException("graphics");
if (bytes == null)
throw new ArgumentNullException("bytes");
Texture texture = new Texture(graphics);
graphics.GL.ActiveTexture(GLContext.Texture0 + texture.Index);
graphics.GL.BindTexture(GLContext.Texture2D, texture.Handle);
if (parameters.ColorKey != null)
{
for (int i = 0; i < bytes.Length; i += 4)
{
uint pixel = GLHelper.MakePixelRGBA(bytes[i], bytes[i + 1], bytes[i + 2], bytes[i + 3]);
if (pixel == parameters.ColorKey.Value.ToRgba())
GLHelper.DecomposePixelRGBA(parameters.TransparentPixel.ToRgba(), out bytes[i], out bytes[i + 1], out bytes[i + 2], out bytes[i + 3]);
}
}
graphics.GL.TexParameteri(GLContext.Texture2D, GLContext.TextureMagFilter, (int)parameters.MagFilter);
graphics.GL.TexParameteri(GLContext.Texture2D, GLContext.TextureMinFilter, (int)parameters.MinFilter);
graphics.GL.TexParameteri(GLContext.Texture2D, GLContext.TextureWrapS, (int)parameters.WrapS);
graphics.GL.TexParameteri(GLContext.Texture2D, GLContext.TextureWrapT, (int)parameters.WrapT);
graphics.GL.TexImage2D(
GLContext.Texture2D,
0,
(int)GLContext.Rgba8,
width,
height,
0,
GLContext.Rgba,
(int)GLContext.UnsignedByte,
bytes);
texture.Width = width;
texture.Height = height;
return texture;
}
