private unsafe static ModeEncoder *GetEncoder(int fd, ModeConnector *c)
{
ModeEncoder *encoder = null;
for (int i = 0; i < c->count_encoders && encoder == null; i++)
{
ModeEncoder *e = (ModeEncoder *)Drm.ModeGetEncoder(
fd, *(c->encoders + i));
if (e != null)
{
if (e->encoder_id == c->encoder_id)
{
encoder = e;
}
else
{
Drm.ModeFreeEncoder((IntPtr)e);
}
}
}
if (encoder != null)
{
Debug.Print("[KMS] Encoder {0} found for connector {1}",
encoder->encoder_id, c->connector_id);
}
else
{
Debug.Print("[KMS] Failed to find encoder for connector {0}", c->connector_id);
}
return(encoder);
}
private unsafe static ModeCrtc *GetCrtc(int fd, ModeEncoder *encoder)
{
ModeCrtc *crtc = (ModeCrtc *)Drm.ModeGetCrtc(fd, encoder->crtc_id);
if (crtc != null)
{
Debug.Print("[KMS] CRTC {0} found for encoder {1}",
encoder->crtc_id, encoder->encoder_id);
}
else
{
Debug.Print("[KMS] Failed to find crtc {0} for encoder {1}",
encoder->crtc_id, encoder->encoder_id);
}
return(crtc);
}
private unsafe static bool QueryDisplay(int fd, ModeConnector *c, out LinuxDisplay display)
{
display = null;
// Find corresponding encoder
ModeEncoder *encoder = GetEncoder(fd, c);
if (encoder == null)
{
return(false);
}
ModeCrtc *crtc = GetCrtc(fd, encoder);
if (crtc == null)
{
return(false);
}
display = new LinuxDisplay(fd, (IntPtr)c, (IntPtr)encoder, (IntPtr)crtc);
return(true);
}
