public unsafe GLTexture(string name, SDL2.SDL.SDL_Surface source)
{
Name = name;
Width = source.w;
Height = source.h;
GLHelper.Texture(TextureTarget.Texture2D, name, out int gt);
GL.BindTexture(TextureTarget.Texture2D, gt);
GL.TextureStorage2D(gt, 1, SizedInternalFormat.Rgba16, Width, Height);
var fmt = PixelInternalFormat.Rgb;
var surfmt = (SDL2.SDL.SDL_PixelFormat *)(source.format.ToPointer());
if (surfmt->BytesPerPixel == 4)
{
// We're in RGBA land
fmt = PixelInternalFormat.Rgba;
}
GL.TexImage2D(TextureTarget.Texture2D, 0, fmt, Width, Height, 0, (PixelFormat)fmt, PixelType.UnsignedByte, source.pixels);
GLObject = gt;
SetMinFilter(TextureMinFilter.Nearest);
SetMagFilter(TextureMagFilter.Nearest);
}
public GLTexture(string name, int w, int h, IntPtr data)
{
Name = name;
Width = w;
Height = h;
GLHelper.Texture(TextureTarget.Texture2D, name, out int gt);
GL.TextureStorage2D(gt, 1, SizedInternalFormat.Rgba16, w, h);
GL.TextureSubImage2D(gt, 0, 0, 0, w, h, PixelFormat.Bgra, PixelType.UnsignedByte, data);
GLObject = gt;
SetMinFilter(TextureMinFilter.Nearest);
SetMagFilter(TextureMagFilter.Nearest);
}
public GLTexture(string name, Bitmap bmp)
{
GLHelper.Texture(TextureTarget.Texture2D, name, out int obj);
GLObject = obj;
Bind();
var ir = new Rectangle(0, 0, bmp.Width, bmp.Height);
var data = bmp.LockBits(ir, ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
var fmt = PixelInternalFormat.Rgba;
GL.TexImage2D(TextureTarget.Texture2D, 0, fmt, bmp.Width, bmp.Height, 0,
PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0);
bmp.UnlockBits(data);
SetMinFilter(TextureMinFilter.Linear);
SetMagFilter(TextureMagFilter.Linear);
SetWrappingRules(TextureWrapMode.Repeat);
}