public void AllocateTexture()
{
GL.GenTextures(1, out m_texture);
GLWrapper.BindTexture(All.Texture2D, m_texture, forceBind: false);
for (int i = 0; i < MipLevelsCount; i++)
{
int width = MathUtils.Max(Width >> i, 1);
int height = MathUtils.Max(Height >> i, 1);
GL.TexImage2D(All.Texture2D, i, (int)m_pixelFormat, width, height, 0, m_pixelFormat, m_pixelType, IntPtr.Zero);
}
}
public void SetData <T>(int mipLevel, T[] source, int sourceStartIndex = 0) where T : struct
{
VerifyParametersSetData(mipLevel, source, sourceStartIndex);
GCHandle gCHandle = GCHandle.Alloc(source, GCHandleType.Pinned);
try
{
int width = MathUtils.Max(Width >> mipLevel, 1);
int height = MathUtils.Max(Height >> mipLevel, 1);
IntPtr pixels = gCHandle.AddrOfPinnedObject() + sourceStartIndex * Utilities.SizeOf <T>();
GLWrapper.BindTexture(All.Texture2D, m_texture, forceBind: false);
GL.TexImage2D(All.Texture2D, mipLevel, (int)m_pixelFormat, width, height, 0, m_pixelFormat, m_pixelType, pixels);
}
finally
{
gCHandle.Free();
}
}
public void GenerateMipMaps()
{
GLWrapper.BindTexture(All.Texture2D, m_texture, forceBind: false);
GL.GenerateMipmap(All.Texture2D);
}