public Texture2D(int width, int height, InternalFormat pixel_format, PixelDataType format, PixelType type, string sourcename)
: this()
{
OpenGL.glBindTexture(OpenGL.Const.GL_TEXTURE_2D, handle);
int_fmt = (int)pixel_format;
fmt = (uint)format;
this.type = (uint)type;
}
public void AssignBuffer <T>(T[] array)
{
var h = System.Runtime.InteropServices.GCHandle.Alloc(array, System.Runtime.InteropServices.GCHandleType.Pinned);
OpenGL.glBindTexture(target, handle);
OpenGL.glTexImage2D(target, 0, int_fmt, width, height, 0, fmt, type, h.AddrOfPinnedObject());
OpenGL.glGenerateMipmap(target);
h.Free();
}
public Texture2D(System.IO.Stream src, string sourcename)
: this()
{
SourceName = sourcename;
var bmp = System.Drawing.Bitmap.FromStream(src) as System.Drawing.Bitmap;
width = bmp.Width;
height = bmp.Height;
var lc = bmp.LockBits(new System.Drawing.Rectangle(0, 0, width, height), System.Drawing.Imaging.ImageLockMode.ReadOnly, bmp.PixelFormat);
OpenGL.glBindTexture(target, handle);
switch (bmp.PixelFormat)
{
case System.Drawing.Imaging.PixelFormat.Format24bppRgb:
int_fmt = (int)OpenGL.Const.GL_RGB8;
fmt = OpenGL.Const.GL_RGB;
break;
case System.Drawing.Imaging.PixelFormat.Format32bppArgb:
int_fmt = (int)OpenGL.Const.GL_RGBA8;
fmt = OpenGL.Const.GL_RGBA;
break;
case System.Drawing.Imaging.PixelFormat.Format32bppRgb:
int_fmt = (int)OpenGL.Const.GL_RGBA8;
fmt = OpenGL.Const.GL_RGB;
break;
default:
throw new NotSupportedException("Texture format '" + bmp.PixelFormat.ToString() + "' not supported.");
}
type = OpenGL.Const.GL_UNSIGNED_BYTE;
AssignTexture(lc.Scan0);
MagFilter = Graphics.OpenGL.MagFilter.Linear;
MinFilter = Graphics.OpenGL.MinFilter.LinearMipmapLinear;
//OpenGL.glTexImage2D(target, 0, (int)OpenGL.Const.GL_RGBA8, bmp.Width, bmp.Height, 0, (uint)OpenGL.Const.GL_RGBA, (uint)OpenGL.Const.GL_UNSIGNED_BYTE, lc.Scan0);
OpenGL.glBindTexture(target, 0);
bmp.UnlockBits(lc);
bmp.Dispose();
}
public void SetSide(CubemapSide side, Texture2D value)
{
OpenGL.glBindTexture(OpenGL.Const.GL_TEXTURE_CUBE_MAP, handle);
textures[(int)side] = value;
//OpenGL.glTexImage2D(OpenGL.Const.GL_TEXTURE_CUBE_MAP_POSITIVE_X + (uint)side, 0,
}
internal void AssignTexture(IntPtr ptr)
{
OpenGL.glBindTexture(target, handle);
OpenGL.glTexImage2D(target, 0, (int)int_fmt, width, height, 0, (uint)fmt, (uint)type, ptr);
OpenGL.glGenerateMipmap(target);
}
public void MakeNonCurrent()
{
OpenGL.glDisable(target);
OpenGL.glBindTexture(target, 0);
}
public void MakeCurrent()
{
OpenGL.glEnable(target);
OpenGL.glBindTexture(target, handle);
}
public void MakeCurrent(uint active)
{
OpenGL.glEnable(target);
OpenGL.glActiveTexture(OpenGL.Const.GL_TEXTURE1 + active);
OpenGL.glBindTexture(target, handle);
}
/// <summary>
/// Applies a texture
/// </summary>
/// <param name="texture"></param>
public void MakeCurrent(OpenGL.Texture texture, uint index)
{
GL.glActiveTexture(index);
GL.glBindTexture((uint)texture.target, texture.Handle);
}
