public virtual void MakeTexture()
{
if (PrepDevice != null)
{
// PrepDevice.pixelStorei(GL.UNPACK_FLIP_Y_WEBGL, 1);
try
{
texture2d = PrepDevice.createTexture();
if (dataset.Extension == ".fits" && RenderContext.UseGlVersion2)
{
PrepDevice.bindTexture(GL.TEXTURE_2D, texture2d);
PrepDevice.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_WRAP_S, GL.CLAMP_TO_EDGE);
PrepDevice.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_WRAP_T, GL.CLAMP_TO_EDGE);
PrepDevice.texImage2D(GL.TEXTURE_2D, 0, GL.R32F, (int)fitsImage.SizeX, (int)fitsImage.SizeY, 0, GL.RED, GL.FLOAT, fitsImage.dataUnit);
PrepDevice.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MIN_FILTER, GL.NEAREST);
PrepDevice.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MAG_FILTER, GL.NEAREST);
}
else
{
ImageElement image = texture;
// Before we bind resize to a power of two if nessesary so we can MIPMAP
if (!Texture.IsPowerOfTwo(texture.Height) | !Texture.IsPowerOfTwo(texture.Width))
{
CanvasElement temp = (CanvasElement)Document.CreateElement("canvas");
temp.Height = Texture.FitPowerOfTwo(image.Height);
temp.Width = Texture.FitPowerOfTwo(image.Width);
CanvasContext2D ctx = (CanvasContext2D)temp.GetContext(Rendering.Render2D);
ctx.DrawImage(image, 0, 0, temp.Width, temp.Height);
//Substitute the resized image
image = (ImageElement)(Element)temp;
}
PrepDevice.bindTexture(GL.TEXTURE_2D, texture2d);
PrepDevice.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_WRAP_S, GL.CLAMP_TO_EDGE);
PrepDevice.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_WRAP_T, GL.CLAMP_TO_EDGE);
PrepDevice.texImage2D(GL.TEXTURE_2D, 0, GL.RGBA, GL.RGBA, GL.UNSIGNED_BYTE, image);
PrepDevice.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MIN_FILTER, GL.LINEAR_MIPMAP_NEAREST);
PrepDevice.generateMipmap(GL.TEXTURE_2D);
}
PrepDevice.bindTexture(GL.TEXTURE_2D, null);
}
catch
{
errored = true;
}
}
}
public static Bitmap Create(int width, int height)
{
height = Texture.FitPowerOfTwo(height);
width = Texture.FitPowerOfTwo(width);
Bitmap bmp = new Bitmap();
bmp.Height = height;
bmp.Width = width;
bmp.buffer = new Uint8Array(width * height * 4);
return(bmp);
}