internal static int GlTargetToFramebufferTargetIndex(glFramebuffer.BindTarget Target)
{
switch (Target)
{
case glFramebuffer.BindTarget.GL_FRAMEBUFFER: return(0);
case glFramebuffer.BindTarget.GL_READ_FRAMEBUFFER: return(1);
case glFramebuffer.BindTarget.GL_DRAW_FRAMEBUFFER: return(2);
}
return(0);
}
internal void FramebufferTexture(glFramebuffer framebuffer, glFramebuffer.BindTarget Target, glFramebuffer.Attachment attachment, glTexture texture, int level)
{
int indexTarget = GlTargetToFramebufferTargetIndex(Target);
lock (_Framebuffers)
{
if (_Framebuffers[indexTarget] != framebuffer)
{
throw new Exception("Invalid bind target. The frambeuffer must be bound to this target first");
}
_glFramebufferTexture((int)Target, (int)attachment, texture.Handle, level);
}
}
internal void BindFramebuffer(glFramebuffer Framebuffer, glFramebuffer.BindTarget Target)
{
int indexTarget = GlTargetToFramebufferTargetIndex(Target);
lock (_Framebuffers)
{
if (Framebuffer == null)
{
_glBindFramebuffer((int)Target, 0);
_Framebuffers[indexTarget] = null;
}
else
{
_glBindFramebuffer((int)Target, Framebuffer.Handle);
_Framebuffers[indexTarget] = Framebuffer;
}
}
}
